@ifGNUmake@ CHECK=sparse
@ifGNUmake@ CHECK_OPTS=-Wsparse-all -Wno-transparent-union -Wno-return-void -Wno-undef -Wno-non-pointer-null
+@ifGNUmake@ CPPCHECK=cppcheck
+@ifGNUmake@ CPPCHECK_OPTS=--force --enable=all --quiet
@ifGNUmake@ ifeq ("$(C)", "2")
@ifGNUmake@ CHECK_CMD=$(CHECK) $(CHECK_OPTS) -Wbitwise -D__CHECK_ENDIAN__
+@ifGNUmake@ CPPCHECK_CMD=$(CPPCHECK) $(CPPCHECK_OPTS)
@ifGNUmake@ else
@ifGNUmake@ ifeq ("$(C)", "1")
@ifGNUmake@ CHECK_CMD=$(CHECK) $(CHECK_OPTS)
+@ifGNUmake@ CPPCHECK_CMD=$(CPPCHECK) $(CPPCHECK_OPTS)
@ifGNUmake@ else
@ifGNUmake@ CHECK_CMD=@true
+@ifGNUmake@ CPPCHECK_CMD=@true
@ifGNUmake@ endif
@ifGNUmake@ endif
@ifNotGNUmake@ CHECK_CMD=@true
+@ifNotGNUmake@ CPPHECK_CMD=@true
CC = @CC@
BUILD_CC = @BUILD_CC@
# Run make gcc-wall to do a build with warning messages.
#
#
-WFLAGS= -std=c99 -D_XOPEN_SOURCE=600 -D_GNU_SOURCE \
+WFLAGS= -std=gnu99 -D_XOPEN_SOURCE=600 -D_GNU_SOURCE \
-pedantic $(WFLAGS_EXTRA) \
-Wall -W -Wwrite-strings -Wpointer-arith \
-Wcast-qual -Wcast-align -Wno-variadic-macros \
-UENABLE_NLS
gcc-wall-new:
- (make CFLAGS="@CFLAGS@ $(WFLAGS)" > /dev/null) 2>&1 | sed -f $(top_srcdir)/util/gcc-wall-cleanup
+ ($(MAKE) CFLAGS="@CFLAGS@ $(WFLAGS)" > /dev/null) 2>&1 | sed -f $(top_srcdir)/util/gcc-wall-cleanup
gcc-wall:
- make clean > /dev/null
- make gcc-wall-new
+ $(MAKE) clean > /dev/null
+ $(MAKE) gcc-wall-new
+
+static-check:
+ ($(MAKE) C=1 V=1 CFLAGS="@CFLAGS@ $(WFLAGS)") 2>&1 | sed -f $(top_srcdir)/util/static-analysis-cleanup
+
+static-check-all:
+ $(MAKE) clean > /dev/null
+ $(MAKE) static-check
#
# Installation user and groups
+E2fsprogs 1.43-WIP (December 28, 2013) -- 38cc555a5fc
+======================================
+
+Add support for the ext4 metadata checksum feature.
+
+Check to make sure file system features which can not be supported by
+HURD are not enabled if the file system is created to be
+HURD-compatible.
+
+
+Programmer's Notes
+------------------
+
+Reduce the use of libc functions in libext2fs that may not be present
+in the boot loader environment, at least for those functions that are
+needed by boot loadsers such as yaboot.
+
+Support for the MMP feature can now be disabled at compile time.
+
+
E2fsprogs 1.42.9 (December 28, 2013)
====================================
enable_e2initrd_helper
enable_tls
enable_uuidd
+enable_mmp
+enable_bmap_stats
+enable_bmap_stats_ops
enable_nls
with_gnu_ld
enable_rpath
--enable-e2initrd-helper build e2initrd-helper program
--disable-tls disable use of thread local support
--disable-uuidd disable building the uuid daemon
+ --disable-mmp disable support mmp, Multi Mount Protection
+ --disable-bmap-stats disable collection of bitmap stats.
+ --enable-bmap-stats-ops enable collection of additional bitmap stats
--disable-nls do not use Native Language Support
--disable-rpath do not hardcode runtime library paths
fi
+
+# Check whether --enable-mmp was given.
+if test "${enable_mmp+set}" = set; then :
+ enableval=$enable_mmp; if test "$enableval" = "no"
+then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Disabling mmp support" >&5
+$as_echo "Disabling mmp support" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Enabling mmp support" >&5
+$as_echo "Enabling mmp support" >&6; }
+ $as_echo "#define CONFIG_MMP 1" >>confdefs.h
+
+fi
+
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Enabling mmp support by default" >&5
+$as_echo "Enabling mmp support by default" >&6; }
+$as_echo "#define CONFIG_MMP 1" >>confdefs.h
+
+
+fi
+
+
+# Check whether --enable-bmap-stats was given.
+if test "${enable_bmap_stats+set}" = set; then :
+ enableval=$enable_bmap_stats; if test "$enableval" = "no"
+then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Disabling bitmap statistics support" >&5
+$as_echo "Disabling bitmap statistics support" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Enabling bitmap statistics support" >&5
+$as_echo "Enabling bitmap statistics support" >&6; }
+ $as_echo "#define ENABLE_BMAP_STATS 1" >>confdefs.h
+
+fi
+
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Enabling bitmap statistics support by default" >&5
+$as_echo "Enabling bitmap statistics support by default" >&6; }
+$as_echo "#define ENABLE_BMAP_STATS 1" >>confdefs.h
+
+
+fi
+
+
+# Check whether --enable-bmap-stats-ops was given.
+if test "${enable_bmap_stats_ops+set}" = set; then :
+ enableval=$enable_bmap_stats_ops; if test "$enableval" = "no"
+then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Disabling additional bitmap statistics" >&5
+$as_echo "Disabling additional bitmap statistics" >&6; }
+else
+ if test "x${enable_bmap_stats}" = "xno"; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Error --enable-bmap-stats-ops requires bmap-stats
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Enabling additional bitmap statistics" >&5
+$as_echo "Enabling additional bitmap statistics" >&6; }
+ $as_echo "#define ENABLE_BMAP_STATS_OPS 1" >>confdefs.h
+
+fi
+
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: Disabling additional bitmap statistics by default" >&5
+$as_echo "Disabling additional bitmap statistics by default" >&6; }
+
+fi
+
MAKEFILE_LIBRARY=$srcdir/lib/Makefile.library
GETTEXT_PACKAGE=e2fsprogs
)
AC_SUBST(UUIDD_CMT)
dnl
+dnl handle --disable-mmp
+dnl
+AH_TEMPLATE([CONFIG_MMP], [Define to 1 to enable mmp support])
+AC_ARG_ENABLE([mmp],
+[ --disable-mmp disable support mmp, Multi Mount Protection],
+if test "$enableval" = "no"
+then
+ AC_MSG_RESULT([Disabling mmp support])
+else
+ AC_MSG_RESULT([Enabling mmp support])
+ AC_DEFINE(CONFIG_MMP, 1)
+fi
+,
+AC_MSG_RESULT([Enabling mmp support by default])
+AC_DEFINE(CONFIG_MMP, 1)
+)
+dnl
+dnl handle --disable-bmap-stats
+dnl
+AH_TEMPLATE([ENABLE_BMAP_STATS], [Define to 1 to enable bitmap stats.])
+AC_ARG_ENABLE([bmap-stats],
+[ --disable-bmap-stats disable collection of bitmap stats.],
+if test "$enableval" = "no"
+then
+ AC_MSG_RESULT([Disabling bitmap statistics support])
+else
+ AC_MSG_RESULT([Enabling bitmap statistics support])
+ AC_DEFINE(ENABLE_BMAP_STATS, 1)
+fi
+,
+AC_MSG_RESULT([Enabling bitmap statistics support by default])
+AC_DEFINE(ENABLE_BMAP_STATS, 1)
+)
+dnl
+dnl handle --enable-bmap-stats-ops
+dnl
+AH_TEMPLATE([ENABLE_BMAP_STATS_OPS], [Define to 1 to enable bitmap stats.])
+AC_ARG_ENABLE([bmap-stats-ops],
+[ --enable-bmap-stats-ops enable collection of additional bitmap stats],
+if test "$enableval" = "no"
+then
+ AC_MSG_RESULT([Disabling additional bitmap statistics])
+else
+ dnl There has to be a better way!
+ AS_IF([test "x${enable_bmap_stats}" = "xno"],
+ AC_MSG_FAILURE([Error --enable-bmap-stats-ops requires bmap-stats]))
+
+ AC_MSG_RESULT([Enabling additional bitmap statistics])
+ AC_DEFINE(ENABLE_BMAP_STATS_OPS, 1)
+fi
+,
+AC_MSG_RESULT([Disabling additional bitmap statistics by default])
+)
+dnl
dnl
dnl
MAKEFILE_LIBRARY=$srcdir/lib/Makefile.library
+e2fsprogs (1.43~WIP-2014-02-04-1) unstable; urgency=low
+
+ * Merge in updates from the maint branch (changes from 1.42.9-3)
+
+ -- Theodore Y. Ts'o <tytso@mit.edu> Wed, 04 Feb 2014 23:31:56 -0500
+
e2fsprogs (1.42.9-3) unstable; urgency=medium
* Add the ability for mke2fs to create hugefiles
-- Theodore Y. Ts'o <tytso@mit.edu> Tue, 21 Jan 2013 21:52:58 -0500
+e2fsprogs (1.43~WIP-2012-09-22-1) unstable; urgency=low
+
+ * Add metadata checksum feature
+
+ -- Theodore Y. Ts'o <tytso@mit.edu> Sat, 22 Sep 2012 21:50:20 -0400
+
e2fsprogs (1.42.6-1) unstable; urgency=low
* New upstream version
ext2fs_add_journal_inode2@Base 1.42.9-3~
ext2fs_add_journal_inode@Base 1.37
ext2fs_adjust_ea_refcount2@Base 1.42
+ ext2fs_adjust_ea_refcount3@Base 1.43~WIP-2012-08-01
ext2fs_adjust_ea_refcount@Base 1.37
ext2fs_alloc_block2@Base 1.42
ext2fs_alloc_block@Base 1.37
ext2fs_blkmap64_rbtree@Base 1.42.1
ext2fs_block_alloc_stats2@Base 1.42
ext2fs_block_alloc_stats@Base 1.37
+ ext2fs_block_bitmap_checksum@Base 1.43~WIP-2012-08-01
+ ext2fs_block_bitmap_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_block_bitmap_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_block_alloc_stats_range@Base 1.42.9-3~
ext2fs_block_bitmap_loc@Base 1.42
ext2fs_block_bitmap_loc_set@Base 1.42
ext2fs_copy_generic_bitmap@Base 1.41.0
ext2fs_copy_generic_bmap@Base 1.42
ext2fs_crc16@Base 1.41.1
- ext2fs_crc32c_be@Base 1.42
+ ext2fs_crc32_be@Base 1.43~WIP-2012-08-01
+#Removed in e2fsprogs 1.43
+#ext2fs_crc32c_be@Base 1.42
ext2fs_crc32c_le@Base 1.42
ext2fs_create_icount2@Base 1.37
ext2fs_create_icount@Base 1.37
ext2fs_default_journal_size@Base 1.40
ext2fs_descriptor_block_loc2@Base 1.42
ext2fs_descriptor_block_loc@Base 1.37
+ ext2fs_dir_block_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_dir_block_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_dir_iterate2@Base 1.37
ext2fs_dir_iterate@Base 1.37
+ ext2fs_dirent_csum_verify@Base 1.43~WIP-2012-08-01
+ ext2fs_dirent_has_tail@Base 1.43~WIP-2012-08-01
ext2fs_dirhash@Base 1.37
ext2fs_div64_ceil@Base 1.42
ext2fs_div_ceil@Base 1.40
ext2fs_dup_handle@Base 1.37
ext2fs_expand_dir@Base 1.37
+ ext2fs_ext_attr_block_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_ext_attr_block_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_ext_attr_hash_entry@Base 1.41.0
+ ext2fs_extent_block_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_extent_block_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_extent_delete@Base 1.41.0
ext2fs_extent_fix_parents@Base 1.42.7
ext2fs_extent_free@Base 1.41.0
ext2fs_get_device_size2@Base 1.41.4
ext2fs_get_device_size@Base 1.37
ext2fs_get_dio_alignment@Base 1.42.3
+ ext2fs_get_dx_countlimit@Base 1.43~WIP-2012-08-01
ext2fs_get_free_blocks2@Base 1.42
ext2fs_get_free_blocks@Base 1.37
ext2fs_get_generic_bitmap_end@Base 1.41.0
ext2fs_image_inode_write@Base 1.37
ext2fs_image_super_read@Base 1.37
ext2fs_image_super_write@Base 1.37
+ ext2fs_init_csum_seed@Base 1.43~WIP-2012-08-01
ext2fs_init_dblist@Base 1.37
ext2fs_initialize@Base 1.37
+ ext2fs_initialize_dirent_tail@Base 1.43~WIP-2012-08-01
ext2fs_inode_alloc_stats2@Base 1.37
ext2fs_inode_alloc_stats@Base 1.37
+ ext2fs_inode_bitmap_checksum@Base 1.43~WIP-2012-08-01
+ ext2fs_inode_bitmap_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_inode_bitmap_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_inode_bitmap_loc@Base 1.42
ext2fs_inode_bitmap_loc_set@Base 1.42
+ ext2fs_inode_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_inode_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_inode_data_blocks2@Base 1.42
ext2fs_inode_data_blocks@Base 1.37
ext2fs_inode_has_valid_blocks2@Base 1.42
ext2fs_mem_is_zero@Base 1.42
ext2fs_mkdir@Base 1.37
ext2fs_mmp_clear@Base 1.42
+ ext2fs_mmp_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_mmp_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_mmp_init@Base 1.42
ext2fs_mmp_new_seq@Base 1.42
ext2fs_mmp_read@Base 1.42
ext2fs_mmp_start@Base 1.42
ext2fs_mmp_stop@Base 1.42
+ ext2fs_mmp_update2@Base 1.43~WIP-2012-08-01
ext2fs_mmp_update@Base 1.42
ext2fs_mmp_write@Base 1.42
ext2fs_namei@Base 1.37
ext2fs_new_inode@Base 1.37
ext2fs_numeric_progress_close@Base 1.42
ext2fs_numeric_progress_init@Base 1.42
+ ext2fs_numeric_progress_ops@Base 1.43~WIP-2012-08-01
ext2fs_numeric_progress_update@Base 1.42
ext2fs_open2@Base 1.37
ext2fs_open@Base 1.37
ext2fs_read_block_bitmap@Base 1.37
ext2fs_read_dir_block2@Base 1.37
ext2fs_read_dir_block3@Base 1.42
+ ext2fs_read_dir_block4@Base 1.43~WIP-2012-08-01
ext2fs_read_dir_block@Base 1.37
ext2fs_read_ext_attr2@Base 1.42
+ ext2fs_read_ext_attr3@Base 1.43~WIP-2012-08-01
ext2fs_read_ext_attr@Base 1.37
ext2fs_read_ind_block@Base 1.37
ext2fs_read_inode@Base 1.37
ext2fs_stat@Base 1.42
ext2fs_super_and_bgd_loc2@Base 1.42
ext2fs_super_and_bgd_loc@Base 1.37
+ ext2fs_superblock_csum_set@Base 1.43~WIP-2012-08-01
+ ext2fs_superblock_csum_verify@Base 1.43~WIP-2012-08-01
ext2fs_swab16@Base 1.37
ext2fs_swab32@Base 1.37
ext2fs_swab64@Base 1.40
ext2fs_unmark_valid@Base 1.37
ext2fs_update_bb_inode@Base 1.37
ext2fs_update_dynamic_rev@Base 1.37
+ ext2fs_verify_csum_type@Base 1.43~WIP-2012-08-01
ext2fs_warn_bitmap2@Base 1.37
ext2fs_warn_bitmap32@Base 1.42
ext2fs_warn_bitmap@Base 1.37
ext2fs_write_block_bitmap@Base 1.37
ext2fs_write_dir_block2@Base 1.37
ext2fs_write_dir_block3@Base 1.42
+ ext2fs_write_dir_block4@Base 1.43~WIP-2012-08-01
ext2fs_write_dir_block@Base 1.37
ext2fs_write_ext_attr2@Base 1.42
+ ext2fs_write_ext_attr3@Base 1.43~WIP-2012-08-01
ext2fs_write_ext_attr@Base 1.37
ext2fs_write_ind_block@Base 1.37
ext2fs_write_inode@Base 1.37
DEBUG_OBJS= debug_cmds.o debugfs.o util.o ncheck.o icheck.o ls.o \
lsdel.o dump.o set_fields.o logdump.o htree.o unused.o e2freefrag.o \
- filefrag.o extent_cmds.o extent_inode.o zap.o quota.o
+ filefrag.o extent_cmds.o extent_inode.o zap.o create_inode.o \
+ quota.o xattrs.o
RO_DEBUG_OBJS= ro_debug_cmds.o ro_debugfs.o util.o ncheck.o icheck.o ls.o \
lsdel.o logdump.o htree.o e2freefrag.o filefrag.o extent_cmds.o \
- extent_inode.o quota.o
+ extent_inode.o quota.o xattrs.o
SRCS= debug_cmds.c $(srcdir)/debugfs.c $(srcdir)/util.c $(srcdir)/ls.c \
$(srcdir)/ncheck.c $(srcdir)/icheck.c $(srcdir)/lsdel.c \
$(srcdir)/dump.c $(srcdir)/set_fields.c ${srcdir}/logdump.c \
$(srcdir)/htree.c $(srcdir)/unused.c ${srcdir}/../misc/e2freefrag.c \
$(srcdir)/filefrag.c $(srcdir)/extent_inode.c $(srcdir)/zap.c \
- $(srcdir)/quota.c
+ $(srcdir)/../misc/create_inode.c $(srcdir)/xattrs.c $(srcdir)/quota.c
LIBS= $(LIBQUOTA) $(LIBEXT2FS) $(LIBE2P) $(LIBSS) $(LIBCOM_ERR) $(LIBBLKID) \
$(LIBUUID) $(SYSLIBS)
$(E) " CC $<"
$(Q) $(CC) -c $(ALL_CFLAGS) $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
all:: $(PROGS) $(MANPAGES)
$(E) " CC $@"
$(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) $< -DDEBUGFS -o $@
+create_inode.o: $(srcdir)/../misc/create_inode.c
+ $(E) " CC $@"
+ $(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) \
+ $(srcdir)/../misc/create_inode.c -DDEBUGFS -o $@
+
debugfs.8: $(DEP_SUBSTITUTE) $(srcdir)/debugfs.8.in
$(E) " SUBST $@"
$(Q) $(SUBSTITUTE_UPTIME) $(srcdir)/debugfs.8.in debugfs.8
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
$(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/version.h $(srcdir)/jfs_user.h \
$(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
$(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
ls.o: $(srcdir)/ls.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
ncheck.o: $(srcdir)/ncheck.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
icheck.o: $(srcdir)/icheck.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
lsdel.o: $(srcdir)/lsdel.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
dump.o: $(srcdir)/dump.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h
set_fields.o: $(srcdir)/set_fields.c $(top_builddir)/lib/config.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
$(top_srcdir)/lib/e2p/e2p.h
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h $(srcdir)/jfs_user.h \
+ $(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
+ $(top_srcdir)/lib/ext2fs/kernel-list.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
$(srcdir)/jfs_user.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
$(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h
+unused.o: $(srcdir)/unused.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h
+e2freefrag.o: $(srcdir)/../misc/e2freefrag.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
+ $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/e2freefrag.h
+filefrag.o: $(srcdir)/filefrag.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h
+extent_inode.o: $(srcdir)/extent_inode.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h
+zap.o: $(srcdir)/zap.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/debugfs.h $(top_srcdir)/lib/ss/ss.h \
+ $(top_builddir)/lib/ss/ss_err.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/../misc/nls-enable.h
+create_inode.o: $(srcdir)/../misc/create_inode.c \
+ $(srcdir)/../misc/create_inode.h $(top_srcdir)/lib/et/com_err.h \
+ $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
+ $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
+ $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/../misc/nls-enable.h
+xattrs.o: $(srcdir)/xattrs.c $(srcdir)/debugfs.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
+ $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/jfs_user.h $(top_srcdir)/lib/ext2fs/kernel-jbd.h \
+ $(top_srcdir)/lib/ext2fs/jfs_compat.h $(top_srcdir)/lib/ext2fs/kernel-list.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
$(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
$(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
$(top_srcdir)/lib/e2p/e2p.h
request do_block_dump, "Dump contents of a block",
block_dump, bd;
+request do_list_xattr, "List extended attributes of an inode",
+ ea_list;
+
+request do_get_xattr, "Get an extended attribute of an inode",
+ ea_get;
+
+request do_set_xattr, "Set an extended attribute of an inode",
+ ea_set;
+
+request do_rm_xattr, "Remove an extended attribute of an inode",
+ ea_rm;
+
request do_list_quota, "List quota",
list_quota, lq;
.SH SYNOPSIS
.B debugfs
[
-.B \-DVwci
+.B \-DVwcin
]
[
.B \-b
Specifies that the file system should be opened in read-write mode.
Without this option, the file system is opened in read-only mode.
.TP
+.I \-n
+Disables metadata checksum verification. This should only be used if
+you believe the metadata to be correct despite the complaints of
+e2fsprogs.
+.TP
.I \-c
Specifies that the file system should be opened in catastrophic mode, in
which the inode and group bitmaps are not read initially. This can be
.IR filespec .
Note this does not adjust the inode reference counts.
.TP
-.BI logdump " [-acs] [-b block] [-i filespec] [-f journal_file] [output_file]"
+.BI logdump " [-acsO] [-b block] [-i filespec] [-f journal_file] [output_file]"
Dump the contents of the ext3 journal. By default, dump the journal inode as
specified in the superblock. However, this can be overridden with the
.I \-i
and
.I \-b
options.
+.IP
+The
+.I \-O
+option causes logdump to display old (checkpointed) journal entries.
+This can be used to try to track down journal problems even after the
+journal has been replayed.
.TP
-.BI ls " [-d] [-l] [-p] filespec"
+.BI ls " [-l] [-c] [-d] [-p] filespec"
Print a listing of the files in the directory
.IR filespec .
The
+.I \-c
+flag causes directory block checksums (if present) to be displayed.
+The
.I \-d
flag will list deleted entries in the directory.
The
#include <errno.h>
#endif
#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
#include "debugfs.h"
#include "uuid/uuid.h"
#define BUFSIZ 8192
#endif
-/* 64KiB is the minimium blksize to best minimize system call overhead. */
-#ifndef IO_BUFSIZE
-#define IO_BUFSIZE 64*1024
-#endif
-
-/* Block size for `st_blocks' */
-#ifndef S_BLKSIZE
-#define S_BLKSIZE 512
-#endif
-
ss_request_table *extra_cmds;
const char *debug_prog_name;
int sci_idx;
-ext2_filsys current_fs = NULL;
+ext2_filsys current_fs;
quota_ctx_t current_qctx;
ext2_ino_t root, cwd;
return;
}
- gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ gdt_csum = ext2fs_has_group_desc_csum(current_fs);
for (i = 0; i < current_fs->group_desc_count; i++) {
fprintf(out, " Group %2d: block bitmap at %llu, "
"inode bitmap at %llu, "
return 0;
}
-static void dump_xattr_string(FILE *out, const char *str, int len)
-{
- int printable = 0;
- int i;
-
- /* check: is string "printable enough?" */
- for (i = 0; i < len; i++)
- if (isprint(str[i]))
- printable++;
-
- if (printable <= len*7/8)
- printable = 0;
-
- for (i = 0; i < len; i++)
- if (printable)
- fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
- (unsigned char)str[i]);
- else
- fprintf(out, "%02x ", (unsigned char)str[i]);
-}
-
static void internal_dump_inode_extra(FILE *out,
const char *prefix EXT2FS_ATTR((unused)),
ext2_ino_t inode_num EXT2FS_ATTR((unused)),
inode->i_extra_isize);
return;
}
- storage_size = EXT2_INODE_SIZE(current_fs->super) -
- EXT2_GOOD_OLD_INODE_SIZE -
- inode->i_extra_isize;
- magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
- inode->i_extra_isize);
- if (*magic == EXT2_EXT_ATTR_MAGIC) {
- fprintf(out, "Extended attributes stored in inode body: \n");
- end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
- start = (char *) magic + sizeof(__u32);
- entry = (struct ext2_ext_attr_entry *) start;
- while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
- struct ext2_ext_attr_entry *next =
- EXT2_EXT_ATTR_NEXT(entry);
- if (entry->e_value_size > storage_size ||
- (char *) next >= end) {
- fprintf(out, "invalid EA entry in inode\n");
- return;
- }
- fprintf(out, " ");
- dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
- entry->e_name_len);
- fprintf(out, " = \"");
- dump_xattr_string(out, start + entry->e_value_offs,
- entry->e_value_size);
- fprintf(out, "\" (%u)\n", entry->e_value_size);
- entry = next;
- }
- }
}
static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
}
if (printed)
fprintf(f, "\n");
+ ext2fs_extent_free(handle);
+}
+
+static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
+{
+ errcode_t retval;
+ size_t size;
+
+ retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
+ if (!retval)
+ fprintf(out, "%sSize of inline data: %zu", prefix, size);
}
void internal_dump_inode(FILE *out, const char *prefix,
if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
internal_dump_inode_extra(out, prefix, inode_num,
(struct ext2_inode_large *) inode);
+ dump_inode_attributes(out, inode_num);
+ if (current_fs->super->s_creator_os == EXT2_OS_LINUX &&
+ current_fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
+ __u32 crc = inode->i_checksum_lo;
+ if (is_large_inode &&
+ large_inode->i_extra_isize >=
+ (offsetof(struct ext2_inode_large,
+ i_checksum_hi) -
+ EXT2_GOOD_OLD_INODE_SIZE))
+ crc |= ((__u32)large_inode->i_checksum_hi) << 16;
+ fprintf(out, "Inode checksum: 0x%08x\n", crc);
+ }
+
if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
(int) inode->i_size, (char *)inode->i_block);
if (inode->i_flags & EXT4_EXTENTS_FL)
dump_extents(out, prefix, inode_num,
DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
+ else if (inode->i_flags & EXT4_INLINE_DATA_FL)
+ dump_inline_data(out, prefix, inode_num);
else
dump_blocks(out, prefix, inode_num);
}
}
#ifndef READ_ONLY
-static errcode_t copy_file(int fd, ext2_ino_t newfile, int bufsize, int make_holes)
-{
- ext2_file_t e2_file;
- errcode_t retval;
- int got;
- unsigned int written;
- char *buf;
- char *ptr;
- char *zero_buf;
- int cmp;
-
- retval = ext2fs_file_open(current_fs, newfile,
- EXT2_FILE_WRITE, &e2_file);
- if (retval)
- return retval;
-
- retval = ext2fs_get_mem(bufsize, &buf);
- if (retval) {
- com_err("copy_file", retval, "can't allocate buffer\n");
- return retval;
- }
-
- /* This is used for checking whether the whole block is zero */
- retval = ext2fs_get_memzero(bufsize, &zero_buf);
- if (retval) {
- com_err("copy_file", retval, "can't allocate buffer\n");
- ext2fs_free_mem(&buf);
- return retval;
- }
-
- while (1) {
- got = read(fd, buf, bufsize);
- if (got == 0)
- break;
- if (got < 0) {
- retval = errno;
- goto fail;
- }
- ptr = buf;
-
- /* Sparse copy */
- if (make_holes) {
- /* Check whether all is zero */
- cmp = memcmp(ptr, zero_buf, got);
- if (cmp == 0) {
- /* The whole block is zero, make a hole */
- retval = ext2fs_file_lseek(e2_file, got, EXT2_SEEK_CUR, NULL);
- if (retval)
- goto fail;
- got = 0;
- }
- }
-
- /* Normal copy */
- while (got > 0) {
- retval = ext2fs_file_write(e2_file, ptr,
- got, &written);
- if (retval)
- goto fail;
-
- got -= written;
- ptr += written;
- }
- }
- ext2fs_free_mem(&buf);
- ext2fs_free_mem(&zero_buf);
- retval = ext2fs_file_close(e2_file);
- return retval;
-
-fail:
- ext2fs_free_mem(&buf);
- ext2fs_free_mem(&zero_buf);
- (void) ext2fs_file_close(e2_file);
- return retval;
-}
-
-
void do_write(int argc, char *argv[])
{
- int fd;
- struct stat statbuf;
- ext2_ino_t newfile;
errcode_t retval;
- struct ext2_inode inode;
- int bufsize = IO_BUFSIZE;
- int make_holes = 0;
if (common_args_process(argc, argv, 3, 3, "write",
"<native file> <new file>", CHECK_FS_RW))
return;
- fd = open(argv[1], O_RDONLY);
- if (fd < 0) {
- com_err(argv[1], errno, 0);
- return;
- }
- if (fstat(fd, &statbuf) < 0) {
- com_err(argv[1], errno, 0);
- close(fd);
- return;
- }
-
- retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
- if (retval == 0) {
- com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
- close(fd);
- return;
- }
-
- retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
- if (retval) {
+ retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
+ if (retval)
com_err(argv[0], retval, 0);
- close(fd);
- return;
- }
- printf("Allocated inode: %u\n", newfile);
- retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
- EXT2_FT_REG_FILE);
- if (retval == EXT2_ET_DIR_NO_SPACE) {
- retval = ext2fs_expand_dir(current_fs, cwd);
- if (retval) {
- com_err(argv[0], retval, "while expanding directory");
- close(fd);
- return;
- }
- retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
- EXT2_FT_REG_FILE);
- }
- if (retval) {
- com_err(argv[2], retval, 0);
- close(fd);
- return;
- }
- if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
- com_err(argv[0], 0, "Warning: inode already set");
- ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
- memset(&inode, 0, sizeof(inode));
- inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
- inode.i_atime = inode.i_ctime = inode.i_mtime =
- current_fs->now ? current_fs->now : time(0);
- inode.i_links_count = 1;
- inode.i_size = statbuf.st_size;
- if (current_fs->super->s_feature_incompat &
- EXT3_FEATURE_INCOMPAT_EXTENTS) {
- int i;
- struct ext3_extent_header *eh;
-
- eh = (struct ext3_extent_header *) &inode.i_block[0];
- eh->eh_depth = 0;
- eh->eh_entries = 0;
- eh->eh_magic = ext2fs_cpu_to_le16(EXT3_EXT_MAGIC);
- i = (sizeof(inode.i_block) - sizeof(*eh)) /
- sizeof(struct ext3_extent);
- eh->eh_max = ext2fs_cpu_to_le16(i);
- inode.i_flags |= EXT4_EXTENTS_FL;
- }
- if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
- close(fd);
- return;
- }
- if (LINUX_S_ISREG(inode.i_mode)) {
- if (statbuf.st_blocks < statbuf.st_size / S_BLKSIZE) {
- make_holes = 1;
- /*
- * Use I/O blocksize as buffer size when
- * copying sparse files.
- */
- bufsize = statbuf.st_blksize;
- }
- retval = copy_file(fd, newfile, bufsize, make_holes);
- if (retval)
- com_err("copy_file", retval, 0);
- }
- close(fd);
}
void do_mknod(int argc, char *argv[])
{
unsigned long mode, major, minor;
- ext2_ino_t newfile;
errcode_t retval;
- struct ext2_inode inode;
int filetype, nr;
+ struct stat st;
if (check_fs_open(argv[0]))
return;
com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
return;
}
+
mode = minor = major = 0;
switch (argv[2][0]) {
case 'p':
- mode = LINUX_S_IFIFO;
- filetype = EXT2_FT_FIFO;
+ st.st_mode = S_IFIFO;
nr = 3;
break;
case 'c':
- mode = LINUX_S_IFCHR;
- filetype = EXT2_FT_CHRDEV;
+ st.st_mode = S_IFCHR;
nr = 5;
break;
case 'b':
- mode = LINUX_S_IFBLK;
- filetype = EXT2_FT_BLKDEV;
+ st.st_mode = S_IFBLK;
nr = 5;
break;
default:
- filetype = 0;
nr = 0;
}
+
if (nr == 5) {
major = strtoul(argv[3], argv+3, 0);
minor = strtoul(argv[4], argv+4, 0);
if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
nr = 0;
}
+
if (argc != nr)
goto usage;
- if (check_fs_read_write(argv[0]))
- return;
- retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
- if (retval) {
+
+ st.st_rdev = makedev(major, minor);
+ retval = do_mknod_internal(current_fs, cwd, argv[1], &st);
+ if (retval)
com_err(argv[0], retval, 0);
- return;
- }
- printf("Allocated inode: %u\n", newfile);
- retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
- if (retval == EXT2_ET_DIR_NO_SPACE) {
- retval = ext2fs_expand_dir(current_fs, cwd);
- if (retval) {
- com_err(argv[0], retval, "while expanding directory");
- return;
- }
- retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
- filetype);
- }
- if (retval) {
- com_err(argv[1], retval, 0);
- return;
- }
- if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
- com_err(argv[0], 0, "Warning: inode already set");
- ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
- memset(&inode, 0, sizeof(inode));
- inode.i_mode = mode;
- inode.i_atime = inode.i_ctime = inode.i_mtime =
- current_fs->now ? current_fs->now : time(0);
- if ((major < 256) && (minor < 256)) {
- inode.i_block[0] = major*256+minor;
- inode.i_block[1] = 0;
- } else {
- inode.i_block[0] = 0;
- inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
- }
- inode.i_links_count = 1;
- if (debugfs_write_new_inode(newfile, &inode, argv[0]))
- return;
}
void do_mkdir(int argc, char *argv[])
{
- char *cp;
- ext2_ino_t parent;
- char *name;
errcode_t retval;
if (common_args_process(argc, argv, 2, 2, "mkdir",
"<filename>", CHECK_FS_RW))
return;
- cp = strrchr(argv[1], '/');
- if (cp) {
- *cp = 0;
- parent = string_to_inode(argv[1]);
- if (!parent) {
- com_err(argv[1], ENOENT, 0);
- return;
- }
- name = cp+1;
- } else {
- parent = cwd;
- name = argv[1];
- }
-
-try_again:
- retval = ext2fs_mkdir(current_fs, parent, 0, name);
- if (retval == EXT2_ET_DIR_NO_SPACE) {
- retval = ext2fs_expand_dir(current_fs, parent);
- if (retval) {
- com_err(argv[0], retval, "while expanding directory");
- return;
- }
- goto try_again;
- }
- if (retval) {
- com_err("ext2fs_mkdir", retval, 0);
- return;
- }
+ retval = do_mkdir_internal(current_fs, cwd, argv[1], NULL, root);
+ if (retval)
+ com_err(argv[0], retval, 0);
}
inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
if (debugfs_write_inode(inode, &inode_buf, 0))
return;
- if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf))
- return;
-
- ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
- release_blocks_proc, NULL);
+ if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
+ ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
+ NULL, release_blocks_proc, NULL);
+ }
printf("\n");
ext2fs_inode_alloc_stats2(current_fs, inode, -1,
LINUX_S_ISDIR(inode_buf.i_mode));
if (dirent->inode == 0)
return 0;
- if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
+ if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
return 0;
- if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
+ if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
(dirent->name[1] == '.')) {
rds->parent = dirent->inode;
return 0;
void do_symlink(int argc, char *argv[])
{
- char *cp;
- ext2_ino_t parent;
- char *name, *target;
errcode_t retval;
if (common_args_process(argc, argv, 3, 3, "symlink",
"<filename> <target>", CHECK_FS_RW))
return;
- cp = strrchr(argv[1], '/');
- if (cp) {
- *cp = 0;
- parent = string_to_inode(argv[1]);
- if (!parent) {
- com_err(argv[1], ENOENT, 0);
- return;
- }
- name = cp+1;
- } else {
- parent = cwd;
- name = argv[1];
- }
- target = argv[2];
-
-try_again:
- retval = ext2fs_symlink(current_fs, parent, 0, name, target);
- if (retval == EXT2_ET_DIR_NO_SPACE) {
- retval = ext2fs_expand_dir(current_fs, parent);
- if (retval) {
- com_err(argv[0], retval, "while expanding directory");
- return;
- }
- goto try_again;
- }
- if (retval) {
- com_err("ext2fs_symlink", retval, 0);
- return;
- }
+ retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
+ if (retval)
+ com_err(argv[0], retval, 0);
}
void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
{
+#if CONFIG_MMP
struct ext2_super_block *sb;
struct mmp_struct *mmp_s;
time_t t;
fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
+ fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
+#else
+ fprintf(stdout, "MMP is unsupported, please recompile with "
+ "--enable-mmp\n");
+#endif
}
static int source_file(const char *cmd_file, int ss_idx)
int catastrophic = 0;
char *data_filename = 0;
#ifdef READ_ONLY
- const char *opt_string = "icR:f:b:s:Vd:D";
+ const char *opt_string = "nicR:f:b:s:Vd:D";
#else
- const char *opt_string = "iwcR:f:b:s:Vd:D";
+ const char *opt_string = "niwcR:f:b:s:Vd:D";
#endif
if (debug_prog_name == 0)
case 'i':
open_flags |= EXT2_FLAG_IMAGE_FILE;
break;
+ case 'n':
+ open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ break;
#ifndef READ_ONLY
case 'w':
open_flags |= EXT2_FLAG_RW;
#include "ss/ss.h"
#include "ext2fs/ext2_fs.h"
#include "ext2fs/ext2fs.h"
+#include "../misc/create_inode.h"
#include "quota/quotaio.h"
#ifdef __STDC__
/* util.c */
extern time_t string_to_time(const char *arg);
+/* xattrs.c */
+void dump_inode_attributes(FILE *out, ext2_ino_t ino);
+void do_get_xattr(int argc, char **argv);
+void do_set_xattr(int argc, char **argv);
+void do_rm_xattr(int argc, char **argv);
+void do_list_xattr(int argc, char **argv);
+
/* zap.c */
extern void do_zap_block(int argc, char **argv);
extern void do_block_dump(int argc, char **argv);
const char *dumproot = private;
struct ext2_inode inode;
- thislen = dirent->name_len & 0xFF;
+ thislen = ext2fs_dirent_name_len(dirent);
strncpy(name, dirent->name, thislen);
name[thislen] = 0;
fs->name, num_blocks, EXT2_I_SIZE(inode));
}
print_header(fs);
- retval = ext2fs_block_iterate3(current_fs, ino,
- BLOCK_FLAG_READ_ONLY, NULL,
- filefrag_blocks_proc, fs);
- if (retval)
- com_err("ext2fs_block_iterate3", retval, 0);
+ if (ext2fs_inode_has_valid_blocks2(current_fs, inode)) {
+ retval = ext2fs_block_iterate3(current_fs, ino,
+ BLOCK_FLAG_READ_ONLY, NULL,
+ filefrag_blocks_proc, fs);
+ if (retval)
+ com_err("ext2fs_block_iterate3", retval, 0);
+ }
report_filefrag(fs);
fprintf(fs->f, "%s: %d contiguous extents%s\n", fs->name, fs->ext,
if (entry == DIRENT_DELETED_FILE)
return 0;
- thislen = dirent->name_len & 0xFF;
+ thislen = ext2fs_dirent_name_len(dirent);
strncpy(name, dirent->name, thislen);
name[thislen] = '\0';
ino = dirent->inode;
ext2_dirhash_t hash, minor_hash;
unsigned int rec_len;
int hash_alg;
+ int csum_size = 0;
+
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dir_entry_tail);
errcode = ext2fs_bmap2(fs, ino, inode, buf, 0, blk, 0, &pblk);
if (errcode) {
}
fprintf(pager, "Reading directory block %llu, phys %llu\n", blk, pblk);
- errcode = ext2fs_read_dir_block2(current_fs, pblk, buf, 0);
+ errcode = ext2fs_read_dir_block4(current_fs, pblk, buf, 0, ino);
if (errcode) {
com_err("htree_dump_leaf_node", errcode,
"while reading block %llu (%llu)\n",
(unsigned long) blk);
return;
}
+ thislen = ext2fs_dirent_name_len(dirent);
if (((offset + rec_len) > fs->blocksize) ||
(rec_len < 8) ||
((rec_len % 4) != 0) ||
- ((((unsigned) dirent->name_len & 0xFF)+8) > rec_len)) {
+ (thislen + 8 > rec_len)) {
fprintf(pager, "Corrupted directory block (%llu)!\n",
blk);
break;
}
- thislen = dirent->name_len & 0xFF;
strncpy(name, dirent->name, thislen);
name[thislen] = '\0';
errcode = ext2fs_dirhash(hash_alg, name,
if (errcode)
com_err("htree_dump_leaf_node", errcode,
"while calculating hash");
- snprintf(tmp, EXT2_NAME_LEN + 64, "%u 0x%08x-%08x (%d) %s ",
- dirent->inode, hash, minor_hash, rec_len, name);
+ if ((offset == fs->blocksize - csum_size) &&
+ (dirent->inode == 0) &&
+ (dirent->rec_len == csum_size) &&
+ (dirent->name_len == EXT2_DIR_NAME_LEN_CSUM)) {
+ struct ext2_dir_entry_tail *t;
+
+ t = (struct ext2_dir_entry_tail *) dirent;
+
+ snprintf(tmp, EXT2_NAME_LEN + 64,
+ "leaf block checksum: 0x%08x ",
+ t->det_checksum);
+ } else {
+ snprintf(tmp, EXT2_NAME_LEN + 64,
+ "%u 0x%08x-%08x (%d) %s ",
+ dirent->inode, hash, minor_hash,
+ rec_len, name);
+ }
thislen = strlen(tmp);
if (col + thislen > 80) {
fprintf(pager, "\n");
{
struct ext2_dx_countlimit limit;
struct ext2_dx_entry e;
+ struct ext2_dx_tail *tail;
int hash, i;
-
+ int remainder;
limit = *((struct ext2_dx_countlimit *) ent);
limit.count = ext2fs_le16_to_cpu(limit.count);
fprintf(pager, "Number of entries (count): %d\n", limit.count);
fprintf(pager, "Number of entries (limit): %d\n", limit.limit);
+ remainder = fs->blocksize - (limit.limit *
+ sizeof(struct ext2_dx_entry));
+ if (ent == (struct ext2_dx_entry *)(rootnode + 1))
+ remainder -= sizeof(struct ext2_dx_root_info) + 24;
+ else
+ remainder -= 8;
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ remainder == sizeof(struct ext2_dx_tail)) {
+ tail = (struct ext2_dx_tail *)(ent + limit.limit);
+ fprintf(pager, "Checksum: 0x%08x\n",
+ ext2fs_le32_to_cpu(tail->dt_checksum));
+ }
+
for (i=0; i < limit.count; i++) {
hash = i ? ext2fs_le32_to_cpu(ent[i].hash) : 0;
fprintf(pager, "Entry #%d: Hash 0x%08x%s, block %u\n", i,
return BLOCK_ABORT;
}
if (dirent->inode &&
- p->len == (dirent->name_len & 0xFF) &&
+ p->len == ext2fs_dirent_name_len(dirent) &&
strncmp(p->search_name, dirent->name,
p->len) == 0) {
printf("Entry found at logical block %lld, "
#define ANY_BLOCK ((blk64_t) -1)
-static int dump_all, dump_contents, dump_descriptors;
+static int dump_all, dump_old, dump_contents, dump_descriptors;
static blk64_t block_to_dump, bitmap_to_dump, inode_block_to_dump;
static unsigned int group_to_dump, inode_offset_to_dump;
static ext2_ino_t inode_to_dump;
journal_source.fd = 0;
journal_source.file = 0;
dump_all = 0;
+ dump_old = 0;
dump_contents = 0;
dump_descriptors = 1;
block_to_dump = ANY_BLOCK;
inode_to_dump = -1;
reset_getopt();
- while ((c = getopt (argc, argv, "ab:ci:f:s")) != EOF) {
+ while ((c = getopt (argc, argv, "ab:ci:f:Os")) != EOF) {
switch (c) {
case 'a':
dump_all++;
inode_spec = optarg;
dump_descriptors = 0;
break;
+ case 'O':
+ dump_old++;
+ break;
case 's':
use_sb++;
break;
return;
print_usage:
- fprintf(stderr, "%s: Usage: logdump [-acs] [-b<block>] [-i<filespec>]\n\t"
+ fprintf(stderr, "%s: Usage: logdump [-acsO] [-b<block>] [-i<filespec>]\n\t"
"[-f<journal_file>] [output_file]\n", argv[0]);
}
fprintf(out_file, "Journal starts at block %u, transaction %u\n",
blocknr, transaction);
- if (!blocknr)
+ if (!blocknr) {
/* Empty journal, nothing to do. */
- return;
+ if (!dump_old)
+ return;
+ else
+ blocknr = 1;
+ }
while (1) {
retval = read_journal_block(cmdname, source,
fprintf (out_file, "Found sequence %u (not %u) at "
"block %u: end of journal.\n",
sequence, transaction, blocknr);
- return;
+ if (!dump_old)
+ return;
}
if (dump_descriptors) {
break;
tag_block = be32_to_cpu(tag->t_blocknr);
- tag_flags = be32_to_cpu(tag->t_flags);
+ tag_flags = be16_to_cpu(tag->t_flags);
if (!(tag_flags & JFS_FLAG_SAME_UUID))
offset += 16;
{
int offset, max;
journal_revoke_header_t *header;
- unsigned int *entry, rblock;
+ unsigned long long rblock;
+ int tag_size = sizeof(__u32);
if (dump_all)
fprintf(out_file, "Dumping revoke block, sequence %u, at "
"block %u:\n", transaction, blocknr);
+ if (be32_to_cpu(jsb->s_feature_incompat) & JFS_FEATURE_INCOMPAT_64BIT)
+ tag_size = sizeof(__u64);
+
header = (journal_revoke_header_t *) buf;
offset = sizeof(journal_revoke_header_t);
max = be32_to_cpu(header->r_count);
while (offset < max) {
- entry = (unsigned int *) (buf + offset);
- rblock = be32_to_cpu(*entry);
+ if (tag_size == sizeof(__u32)) {
+ __u32 *entry = (__u32 *) (buf + offset);
+ rblock = be32_to_cpu(*entry);
+ } else {
+ __u64 *entry = (__u64 *) (buf + offset);
+ rblock = ext2fs_be64_to_cpu(*entry);
+ }
if (dump_all || rblock == block_to_dump) {
- fprintf(out_file, " Revoke FS block %u", rblock);
+ fprintf(out_file, " Revoke FS block %llu", rblock);
if (dump_all)
fprintf(out_file, "\n");
else
fprintf(out_file," at block %u, sequence %u\n",
blocknr, transaction);
}
- offset += 4;
+ offset += tag_size;
}
}
*/
#define LONG_OPT 0x0001
-#define DELETED_OPT 0x0002
-#define PARSE_OPT 0x0004
+#define PARSE_OPT 0x0002
struct list_dir_struct {
FILE *f;
char lbr, rbr;
int thislen;
struct list_dir_struct *ls = (struct list_dir_struct *) private;
+ struct ext2_dir_entry_tail *t = (struct ext2_dir_entry_tail *) dirent;
- thislen = dirent->name_len & 0xFF;
+ thislen = ext2fs_dirent_name_len(dirent);
strncpy(name, dirent->name, thislen);
name[thislen] = '\0';
ino = dirent->inode;
strcpy(datestr, " ");
memset(&inode, 0, sizeof(struct ext2_inode));
}
- fprintf(ls->f, "%c%6u%c %6o (%d) %5d %5d ", lbr, ino, rbr,
- inode.i_mode, dirent->name_len >> 8,
+ fprintf(ls->f, "%c%6u%c %6o ", lbr, ino, rbr, inode.i_mode);
+ if (entry == DIRENT_CHECKSUM) {
+ fprintf(ls->f, "(dirblock checksum: 0x%08x)\n",
+ t->det_checksum);
+ return 0;
+ }
+ fprintf(ls->f, "(%d) %5d %5d ",
+ ext2fs_dirent_file_type(dirent),
inode_uid(inode), inode_gid(inode));
if (LINUX_S_ISDIR(inode.i_mode))
fprintf(ls->f, "%5d", inode.i_size);
fprintf(ls->f, "%5llu", EXT2_I_SIZE(&inode));
fprintf (ls->f, " %s %s\n", datestr, name);
} else {
- sprintf(tmp, "%c%u%c (%d) %s ", lbr, dirent->inode, rbr,
- dirent->rec_len, name);
+ if (entry == DIRENT_CHECKSUM)
+ sprintf(tmp, "%c%u%c (dirblock checksum: 0x%08x) ",
+ lbr, dirent->inode, rbr, t->det_checksum);
+ else
+ sprintf(tmp, "%c%u%c (%d) %s ",
+ lbr, dirent->inode, rbr,
+ dirent->rec_len, name);
thislen = strlen(tmp);
if (ls->col + thislen > 80) {
ext2_ino_t inode;
int retval;
int c;
- int flags;
+ int flags = DIRENT_FLAG_INCLUDE_EMPTY;
struct list_dir_struct ls;
ls.options = 0;
return;
reset_getopt();
- while ((c = getopt (argc, argv, "dlp")) != EOF) {
+ while ((c = getopt (argc, argv, "cdlp")) != EOF) {
switch (c) {
+ case 'c':
+ flags |= DIRENT_FLAG_INCLUDE_CSUM;
+ break;
case 'l':
ls.options |= LONG_OPT;
break;
case 'd':
- ls.options |= DELETED_OPT;
+ flags |= DIRENT_FLAG_INCLUDE_REMOVED;
break;
case 'p':
ls.options |= PARSE_OPT;
ls.f = open_pager();
ls.col = 0;
- flags = DIRENT_FLAG_INCLUDE_EMPTY;
- if (ls.options & DELETED_OPT)
- flags |= DIRENT_FLAG_INCLUDE_REMOVED;
retval = ext2fs_dir_iterate2(current_fs, inode, flags,
0, list_dir_proc, &ls);
lsd.free_blocks = 0;
lsd.bad_blocks = 0;
- retval = ext2fs_block_iterate3(current_fs, ino,
- BLOCK_FLAG_READ_ONLY, block_buf,
- lsdel_proc, &lsd);
- if (retval) {
- com_err("ls_deleted_inodes", retval,
- "while calling ext2fs_block_iterate2");
- goto next;
+ if (ext2fs_inode_has_valid_blocks2(current_fs, &inode)) {
+ retval = ext2fs_block_iterate3(current_fs, ino,
+ BLOCK_FLAG_READ_ONLY,
+ block_buf,
+ lsdel_proc, &lsd);
+ if (retval) {
+ com_err("ls_deleted_inodes", retval,
+ "while calling ext2fs_block_iterate2");
+ goto next;
+ }
}
- if (lsd.free_blocks && !lsd.bad_blocks) {
+ if (lsd.free_blocks && !lsd.bad_blocks ||
+ inode.i_flags & EXT4_INLINE_DATA_FL) {
if (num_delarray >= max_delarray) {
max_delarray += 50;
delarray = realloc(delarray,
struct inode_walk_struct *iw = (struct inode_walk_struct *) private;
struct ext2_inode inode;
errcode_t retval;
- int filetype = dirent->name_len >> 8;
+ int filetype = ext2fs_dirent_file_type(dirent);
int i;
iw->position++;
if (iw->parent)
printf("%u\t%s/%.*s", iw->iarray[i],
iw->parent,
- (dirent->name_len & 0xFF), dirent->name);
+ ext2fs_dirent_name_len(dirent),
+ dirent->name);
else
printf("%u\t<%u>/%.*s", iw->iarray[i],
iw->dir,
- (dirent->name_len & 0xFF), dirent->name);
+ ext2fs_dirent_name_len(dirent),
+ dirent->name);
if (iw->check_dirent && filetype) {
if (!debugfs_read_inode(dirent->inode, &inode,
"ncheck") &&
{ "backup_bgs", &set_sb.s_backup_bgs[0], NULL, 4, parse_uint,
FLAG_ARRAY, 2 },
{ "checksum", &set_sb.s_checksum, NULL, 4, parse_uint },
+ { "checksum_type", &set_sb.s_checksum_type, NULL, 1, parse_uint },
{ 0, 0, 0, 0 }
};
{ "bdevname", &set_mmp.mmp_bdevname, NULL, sizeof(set_mmp.mmp_bdevname),
parse_string },
{ "check_interval", &set_mmp.mmp_check_interval, NULL, 2, parse_uint },
+ { "checksum", &set_mmp.mmp_checksum, NULL, 4, parse_uint },
};
static int check_suffix(const char *field)
void do_set_mmp_value(int argc, char *argv[])
{
+#ifdef CONFIG_MMP
const char *usage = "<field> <value>\n"
"\t\"set_mmp_value -l\" will list the names of "
"MMP fields\n\twhich can be set.";
&set_mmp);
*mmp_s = set_mmp;
}
+#else
+ fprintf(stdout, "MMP is unsupported, please recompile with "
+ "--enable-mmp\n");
+#endif
}
tz = ss_safe_getenv("TZ");
if (!tz)
tz = "";
- do_gmt = !strcmp(tz, "GMT") | !strcmp(tz, "GMT0");
+ do_gmt = !strcmp(tz, "GMT") || !strcmp(tz, "GMT0");
}
return asctime((do_gmt) ? gmtime(&t) : localtime(&t));
--- /dev/null
+/*
+ * xattrs.c --- Modify extended attributes via debugfs.
+ *
+ * Copyright (C) 2014 Oracle. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern int optind;
+extern char *optarg;
+#endif
+#include <ctype.h>
+
+#include "debugfs.h"
+
+/* Dump extended attributes */
+static void dump_xattr_string(FILE *out, const char *str, int len)
+{
+ int printable = 0;
+ int i;
+
+ /* check: is string "printable enough?" */
+ for (i = 0; i < len; i++)
+ if (isprint(str[i]))
+ printable++;
+
+ if (printable <= len*7/8)
+ printable = 0;
+
+ for (i = 0; i < len; i++)
+ if (printable)
+ fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
+ (unsigned char)str[i]);
+ else
+ fprintf(out, "%02x ", (unsigned char)str[i]);
+}
+
+static int dump_attr(char *name, char *value, size_t value_len, void *data)
+{
+ FILE *out = data;
+
+ fprintf(out, " ");
+ dump_xattr_string(out, name, strlen(name));
+ fprintf(out, " = \"");
+ dump_xattr_string(out, value, value_len);
+ fprintf(out, "\" (%zu)\n", value_len);
+
+ return 0;
+}
+
+void dump_inode_attributes(FILE *out, ext2_ino_t ino)
+{
+ struct ext2_xattr_handle *h;
+ size_t sz;
+ errcode_t err;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ return;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ err = ext2fs_xattrs_count(h, &sz);
+ if (err || sz == 0)
+ goto out;
+
+ fprintf(out, "Extended attributes:\n");
+ err = ext2fs_xattrs_iterate(h, dump_attr, out);
+ if (err)
+ goto out;
+
+out:
+ err = ext2fs_xattrs_close(&h);
+}
+
+void do_list_xattr(int argc, char **argv)
+{
+ ext2_ino_t ino;
+
+ if (argc != 2) {
+ printf("%s: Usage: %s <file>\n", argv[0],
+ argv[0]);
+ return;
+ }
+
+ if (check_fs_open(argv[0]))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+
+ dump_inode_attributes(stdout, ino);
+}
+
+void do_get_xattr(int argc, char **argv)
+{
+ ext2_ino_t ino;
+ struct ext2_xattr_handle *h;
+ FILE *fp = NULL;
+ char *buf = NULL;
+ size_t buflen;
+ int i;
+ errcode_t err;
+
+ reset_getopt();
+ while ((i = getopt(argc, argv, "f:")) != -1) {
+ switch (i) {
+ case 'f':
+ fp = fopen(optarg, "w");
+ if (fp == NULL) {
+ perror(optarg);
+ return;
+ }
+ break;
+ default:
+ printf("%s: Usage: %s <file> <attr> [-f outfile]\n",
+ argv[0], argv[0]);
+ goto out2;
+ }
+ }
+
+ if (optind != argc - 2) {
+ printf("%s: Usage: %s <file> <attr> [-f outfile]\n", argv[0],
+ argv[0]);
+ goto out2;
+ }
+
+ if (check_fs_open(argv[0]))
+ goto out2;
+
+ ino = string_to_inode(argv[optind]);
+ if (!ino)
+ goto out2;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ goto out2;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ err = ext2fs_xattr_get(h, argv[optind + 1], (void **)&buf, &buflen);
+ if (err)
+ goto out;
+
+ if (fp) {
+ fwrite(buf, buflen, 1, fp);
+ } else {
+ dump_xattr_string(stdout, buf, buflen);
+ printf("\n");
+ }
+
+ ext2fs_free_mem(&buf);
+out:
+ ext2fs_xattrs_close(&h);
+ if (err)
+ com_err(argv[0], err, "while getting extended attribute");
+out2:
+ if (fp)
+ fclose(fp);
+}
+
+void do_set_xattr(int argc, char **argv)
+{
+ ext2_ino_t ino;
+ struct ext2_xattr_handle *h;
+ FILE *fp = NULL;
+ char *buf = NULL;
+ size_t buflen;
+ int i;
+ errcode_t err;
+
+ reset_getopt();
+ while ((i = getopt(argc, argv, "f:")) != -1) {
+ switch (i) {
+ case 'f':
+ fp = fopen(optarg, "r");
+ if (fp == NULL) {
+ perror(optarg);
+ return;
+ }
+ break;
+ default:
+ printf("%s: Usage: %s <file> <attr> [-f infile | "
+ "value]\n", argv[0], argv[0]);
+ goto out2;
+ }
+ }
+
+ if (optind != argc - 2 && optind != argc - 3) {
+ printf("%s: Usage: %s <file> <attr> [-f infile | value>]\n",
+ argv[0], argv[0]);
+ goto out2;
+ }
+
+ if (check_fs_open(argv[0]))
+ goto out2;
+ if (check_fs_read_write(argv[0]))
+ goto out2;
+ if (check_fs_bitmaps(argv[0]))
+ goto out2;
+
+ ino = string_to_inode(argv[optind]);
+ if (!ino)
+ goto out2;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ goto out2;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ if (fp) {
+ err = ext2fs_get_mem(current_fs->blocksize, &buf);
+ if (err)
+ goto out;
+ buflen = fread(buf, 1, current_fs->blocksize, fp);
+ } else {
+ buf = argv[optind + 2];
+ buflen = strlen(argv[optind + 2]);
+ }
+
+ err = ext2fs_xattr_set(h, argv[optind + 1], buf, buflen);
+ if (err)
+ goto out;
+
+ err = ext2fs_xattrs_write(h);
+ if (err)
+ goto out;
+
+out:
+ ext2fs_xattrs_close(&h);
+ if (err)
+ com_err(argv[0], err, "while setting extended attribute");
+out2:
+ if (fp) {
+ fclose(fp);
+ ext2fs_free_mem(&buf);
+ }
+}
+
+void do_rm_xattr(int argc, char **argv)
+{
+ ext2_ino_t ino;
+ struct ext2_xattr_handle *h;
+ int i;
+ errcode_t err;
+
+ if (argc < 3) {
+ printf("%s: Usage: %s <file> <attrs>...\n", argv[0], argv[0]);
+ return;
+ }
+
+ if (check_fs_open(argv[0]))
+ return;
+ if (check_fs_read_write(argv[0]))
+ return;
+ if (check_fs_bitmaps(argv[0]))
+ return;
+
+ ino = string_to_inode(argv[1]);
+ if (!ino)
+ return;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ return;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ for (i = 2; i < argc; i++) {
+ size_t buflen;
+ char *buf;
+
+ err = ext2fs_xattr_remove(h, argv[i]);
+ if (err)
+ goto out;
+ }
+
+ err = ext2fs_xattrs_write(h);
+ if (err)
+ goto out;
+out:
+ ext2fs_xattrs_close(&h);
+ if (err)
+ com_err(argv[0], err, "while removing extended attribute");
+}
$(E) " CC $<"
$(Q) $(CC) -c $(ALL_CFLAGS) $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
#
#
#MCHECK= -DMCHECK
-OBJS= crc32.o dict.o unix.o e2fsck.o super.o pass1.o pass1b.o pass2.o \
+OBJS= dict.o unix.o e2fsck.o super.o pass1.o pass1b.o pass2.o \
pass3.o pass4.o pass5.o journal.o badblocks.o util.o dirinfo.o \
dx_dirinfo.o ehandler.o problem.o message.o quota.o recovery.o \
region.o revoke.o ea_refcount.o rehash.o profile.o prof_err.o \
profiled/message.o profiled/problem.o profiled/quota.o \
profiled/recovery.o profiled/region.o profiled/revoke.o \
profiled/ea_refcount.o profiled/rehash.o profiled/profile.o \
- profiled/crc32.o profiled/prof_err.o profiled/logfile.o \
+ profiled/prof_err.o profiled/logfile.o \
profiled/sigcatcher.o
SRCS= $(srcdir)/e2fsck.c \
- $(srcdir)/crc32.c \
- $(srcdir)/gen_crc32table.c \
$(srcdir)/dict.c \
$(srcdir)/super.c \
$(srcdir)/pass1.c \
$(Q) $(LD) $(ALL_LDFLAGS) -g -pg -o e2fsck.profiled $(PROFILED_OBJS) \
$(PROFILED_LIBS)
-gen_crc32table: $(srcdir)/gen_crc32table.c
- $(E) " CC $@"
- $(Q) $(BUILD_CC) $(BUILD_CFLAGS) $(BUILD_LDFLAGS) -o gen_crc32table \
- $(srcdir)/gen_crc32table.c
-
-crc32table.h: gen_crc32table
- $(E) " GEN32TABLE $@"
- $(Q) ./gen_crc32table > crc32table.h
-
tst_sigcatcher: $(srcdir)/sigcatcher.c sigcatcher.o
$(E) " CC $@"
$(Q) $(CC) $(BUILD_LDFLAGS) $(ALL_CFLAGS) $(RDYNAMIC) \
$(srcdir)/problem.c -DUNITTEST $(LIBEXT2FS) $(LIBCOM_ERR) \
$(LIBINTL) $(SYSLIBS)
-tst_crc32: $(srcdir)/crc32.c $(LIBEXT2FS) $(DEPLIBCOM_ERR)
- $(Q) $(CC) $(BUILD_LDFLAGS) $(ALL_CFLAGS) -o tst_crc32 $(srcdir)/crc32.c \
- -DUNITTEST $(LIBEXT2FS) $(LIBCOM_ERR) $(SYSLIBS)
-
tst_refcount: ea_refcount.c $(DEPLIBCOM_ERR)
$(E) " LD $@"
$(Q) $(CC) -o tst_refcount $(srcdir)/ea_refcount.c \
$(Q) $(CC) -o tst_region $(srcdir)/region.c \
$(ALL_CFLAGS) -DTEST_PROGRAM $(LIBCOM_ERR) $(SYSLIBS)
-check:: tst_refcount tst_region tst_crc32 tst_problem
+check:: tst_refcount tst_region tst_problem
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_refcount
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_region
- LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_crc32
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_problem
extend: extend.o
clean::
$(RM) -f $(PROGS) \#* *\# *.s *.o *.a *~ core e2fsck.static \
e2fsck.shared e2fsck.profiled flushb e2fsck.8 \
- tst_problem tst_crc32 tst_region tst_refcount gen_crc32table \
- crc32table.h e2fsck.conf.5 prof_err.c prof_err.h \
- test_profile
+ tst_problem tst_region tst_refcount e2fsck.conf.5 \
+ prof_err.c prof_err.h test_profile
$(RM) -rf profiled
mostlyclean: clean
$(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
$(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
- $(srcdir)/profile.h prof_err.h $(top_srcdir)/lib/quota/quotaio.h \
- $(top_srcdir)/lib/quota/dqblk_v2.h $(top_srcdir)/lib/quota/quotaio_tree.h \
- $(top_srcdir)/lib/../e2fsck/dict.h $(srcdir)/problem.h
-crc32.o: $(srcdir)/crc32.c $(top_builddir)/lib/config.h \
- $(top_builddir)/lib/dirpaths.h $(srcdir)/e2fsck.h \
- $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
- $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
- $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
- $(top_builddir)/lib/ext2fs/ext2_err.h \
- $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
- $(srcdir)/profile.h prof_err.h $(top_srcdir)/lib/quota/quotaio.h \
- $(top_srcdir)/lib/quota/dqblk_v2.h $(top_srcdir)/lib/quota/quotaio_tree.h \
- $(top_srcdir)/lib/../e2fsck/dict.h $(srcdir)/crc32defs.h crc32table.h
-gen_crc32table.o: $(srcdir)/gen_crc32table.c $(srcdir)/crc32defs.h
+ $(srcdir)/profile.h prof_err.h \
+ $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
+ $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
+ $(srcdir)/problem.h
dict.o: $(srcdir)/dict.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/dict.h
super.o: $(srcdir)/super.c $(top_builddir)/lib/config.h \
+++ /dev/null
-/*
- * crc32.c --- CRC32 function
- *
- * Copyright (C) 2008 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-/*
- * Oct 15, 2000 Matt Domsch <Matt_Domsch@dell.com>
- * Nicer crc32 functions/docs submitted by linux@horizon.com. Thanks!
- * Code was from the public domain, copyright abandoned. Code was
- * subsequently included in the kernel, thus was re-licensed under the
- * GNU GPL v2.
- *
- * Oct 12, 2000 Matt Domsch <Matt_Domsch@dell.com>
- * Same crc32 function was used in 5 other places in the kernel.
- * I made one version, and deleted the others.
- * There are various incantations of crc32(). Some use a seed of 0 or ~0.
- * Some xor at the end with ~0. The generic crc32() function takes
- * seed as an argument, and doesn't xor at the end. Then individual
- * users can do whatever they need.
- * drivers/net/smc9194.c uses seed ~0, doesn't xor with ~0.
- * fs/jffs2 uses seed 0, doesn't xor with ~0.
- * fs/partitions/efi.c uses seed ~0, xor's with ~0.
- *
- * This source code is licensed under the GNU General Public License,
- * Version 2. See the file COPYING for more details.
- */
-
-#include "config.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-
-#ifdef UNITTEST
-#undef ENABLE_NLS
-#endif
-#include "e2fsck.h"
-
-#include "crc32defs.h"
-#if CRC_LE_BITS == 8
-#define tole(x) __constant_cpu_to_le32(x)
-#define tobe(x) __constant_cpu_to_be32(x)
-#else
-#define tole(x) (x)
-#define tobe(x) (x)
-#endif
-#include "crc32table.h"
-
-#ifdef UNITTEST
-
-/**
- * crc32_le() - Calculate bitwise little-endian Ethernet AUTODIN II CRC32
- * @crc: seed value for computation. ~0 for Ethernet, sometimes 0 for
- * other uses, or the previous crc32 value if computing incrementally.
- * @p: pointer to buffer over which CRC is run
- * @len: length of buffer @p
- */
-__u32 crc32_le(__u32 crc, unsigned char const *p, size_t len);
-
-#if CRC_LE_BITS == 1
-/*
- * In fact, the table-based code will work in this case, but it can be
- * simplified by inlining the table in ?: form.
- */
-
-__u32 crc32_le(__u32 crc, unsigned char const *p, size_t len)
-{
- int i;
- while (len--) {
- crc ^= *p++;
- for (i = 0; i < 8; i++)
- crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
- }
- return crc;
-}
-#else /* Table-based approach */
-
-__u32 crc32_le(__u32 crc, unsigned char const *p, size_t len)
-{
-# if CRC_LE_BITS == 8
- const __u32 *b =(__u32 *)p;
- const __u32 *tab = crc32table_le;
-
-# ifdef WORDS_BIGENDIAN
-# define DO_CRC(x) crc = tab[ ((crc >> 24) ^ (x)) & 255] ^ (crc<<8)
-# else
-# define DO_CRC(x) crc = tab[ (crc ^ (x)) & 255 ] ^ (crc>>8)
-# endif
-
- crc = __cpu_to_le32(crc);
- /* Align it */
- if(unlikely(((long)b)&3 && len)){
- do {
- __u8 *p = (__u8 *)b;
- DO_CRC(*p++);
- b = (void *)p;
- } while ((--len) && ((long)b)&3 );
- }
- if(likely(len >= 4)){
- /* load data 32 bits wide, xor data 32 bits wide. */
- size_t save_len = len & 3;
- len = len >> 2;
- --b; /* use pre increment below(*++b) for speed */
- do {
- crc ^= *++b;
- DO_CRC(0);
- DO_CRC(0);
- DO_CRC(0);
- DO_CRC(0);
- } while (--len);
- b++; /* point to next byte(s) */
- len = save_len;
- }
- /* And the last few bytes */
- if(len){
- do {
- __u8 *p = (__u8 *)b;
- DO_CRC(*p++);
- b = (void *)p;
- } while (--len);
- }
-
- return __le32_to_cpu(crc);
-#undef ENDIAN_SHIFT
-#undef DO_CRC
-
-# elif CRC_LE_BITS == 4
- while (len--) {
- crc ^= *p++;
- crc = (crc >> 4) ^ crc32table_le[crc & 15];
- crc = (crc >> 4) ^ crc32table_le[crc & 15];
- }
- return crc;
-# elif CRC_LE_BITS == 2
- while (len--) {
- crc ^= *p++;
- crc = (crc >> 2) ^ crc32table_le[crc & 3];
- crc = (crc >> 2) ^ crc32table_le[crc & 3];
- crc = (crc >> 2) ^ crc32table_le[crc & 3];
- crc = (crc >> 2) ^ crc32table_le[crc & 3];
- }
- return crc;
-# endif
-}
-#endif
-
-#endif /* UNITTEST */
-
-/**
- * crc32_be() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32
- * @crc: seed value for computation. ~0 for Ethernet, sometimes 0 for
- * other uses, or the previous crc32 value if computing incrementally.
- * @p: pointer to buffer over which CRC is run
- * @len: length of buffer @p
- */
-__u32 crc32_be(__u32 crc, unsigned char const *p, size_t len);
-
-#if CRC_BE_BITS == 1
-/*
- * In fact, the table-based code will work in this case, but it can be
- * simplified by inlining the table in ?: form.
- */
-
-__u32 crc32_be(__u32 crc, unsigned char const *p, size_t len)
-{
- int i;
- while (len--) {
- crc ^= *p++ << 24;
- for (i = 0; i < 8; i++)
- crc =
- (crc << 1) ^ ((crc & 0x80000000) ? CRCPOLY_BE :
- 0);
- }
- return crc;
-}
-
-#else /* Table-based approach */
-__u32 crc32_be(__u32 crc, unsigned char const *p, size_t len)
-{
-# if CRC_BE_BITS == 8
- const __u32 *b =(const __u32 *)p;
- const __u32 *tab = crc32table_be;
-
-# ifdef WORDS_BIGENDIAN
-# define DO_CRC(x) crc = tab[ ((crc >> 24) ^ (x)) & 255] ^ (crc<<8)
-# else
-# define DO_CRC(x) crc = tab[ (crc ^ (x)) & 255 ] ^ (crc>>8)
-# endif
-
- crc = __cpu_to_be32(crc);
- /* Align it */
- if(unlikely(((long)b)&3 && len)){
- do {
- const __u8 *q = (const __u8 *)b;
- DO_CRC(*q++);
- b = (const __u32 *)q;
- } while ((--len) && ((long)b)&3 );
- }
- if(likely(len >= 4)){
- /* load data 32 bits wide, xor data 32 bits wide. */
- size_t save_len = len & 3;
- len = len >> 2;
- --b; /* use pre increment below(*++b) for speed */
- do {
- crc ^= *++b;
- DO_CRC(0);
- DO_CRC(0);
- DO_CRC(0);
- DO_CRC(0);
- } while (--len);
- b++; /* point to next byte(s) */
- len = save_len;
- }
- /* And the last few bytes */
- if(len){
- do {
- const __u8 *q = (const __u8 *)b;
- DO_CRC(*q++);
- b = (const void *)q;
- } while (--len);
- }
- return __be32_to_cpu(crc);
-#undef ENDIAN_SHIFT
-#undef DO_CRC
-
-# elif CRC_BE_BITS == 4
- while (len--) {
- crc ^= *p++ << 24;
- crc = (crc << 4) ^ crc32table_be[crc >> 28];
- crc = (crc << 4) ^ crc32table_be[crc >> 28];
- }
- return crc;
-# elif CRC_BE_BITS == 2
- while (len--) {
- crc ^= *p++ << 24;
- crc = (crc << 2) ^ crc32table_be[crc >> 30];
- crc = (crc << 2) ^ crc32table_be[crc >> 30];
- crc = (crc << 2) ^ crc32table_be[crc >> 30];
- crc = (crc << 2) ^ crc32table_be[crc >> 30];
- }
- return crc;
-# endif
-}
-#endif
-
-/*
- * A brief CRC tutorial.
- *
- * A CRC is a long-division remainder. You add the CRC to the message,
- * and the whole thing (message+CRC) is a multiple of the given
- * CRC polynomial. To check the CRC, you can either check that the
- * CRC matches the recomputed value, *or* you can check that the
- * remainder computed on the message+CRC is 0. This latter approach
- * is used by a lot of hardware implementations, and is why so many
- * protocols put the end-of-frame flag after the CRC.
- *
- * It's actually the same long division you learned in school, except that
- * - We're working in binary, so the digits are only 0 and 1, and
- * - When dividing polynomials, there are no carries. Rather than add and
- * subtract, we just xor. Thus, we tend to get a bit sloppy about
- * the difference between adding and subtracting.
- *
- * A 32-bit CRC polynomial is actually 33 bits long. But since it's
- * 33 bits long, bit 32 is always going to be set, so usually the CRC
- * is written in hex with the most significant bit omitted. (If you're
- * familiar with the IEEE 754 floating-point format, it's the same idea.)
- *
- * Note that a CRC is computed over a string of *bits*, so you have
- * to decide on the endianness of the bits within each byte. To get
- * the best error-detecting properties, this should correspond to the
- * order they're actually sent. For example, standard RS-232 serial is
- * little-endian; the most significant bit (sometimes used for parity)
- * is sent last. And when appending a CRC word to a message, you should
- * do it in the right order, matching the endianness.
- *
- * Just like with ordinary division, the remainder is always smaller than
- * the divisor (the CRC polynomial) you're dividing by. Each step of the
- * division, you take one more digit (bit) of the dividend and append it
- * to the current remainder. Then you figure out the appropriate multiple
- * of the divisor to subtract to being the remainder back into range.
- * In binary, it's easy - it has to be either 0 or 1, and to make the
- * XOR cancel, it's just a copy of bit 32 of the remainder.
- *
- * When computing a CRC, we don't care about the quotient, so we can
- * throw the quotient bit away, but subtract the appropriate multiple of
- * the polynomial from the remainder and we're back to where we started,
- * ready to process the next bit.
- *
- * A big-endian CRC written this way would be coded like:
- * for (i = 0; i < input_bits; i++) {
- * multiple = remainder & 0x80000000 ? CRCPOLY : 0;
- * remainder = (remainder << 1 | next_input_bit()) ^ multiple;
- * }
- * Notice how, to get at bit 32 of the shifted remainder, we look
- * at bit 31 of the remainder *before* shifting it.
- *
- * But also notice how the next_input_bit() bits we're shifting into
- * the remainder don't actually affect any decision-making until
- * 32 bits later. Thus, the first 32 cycles of this are pretty boring.
- * Also, to add the CRC to a message, we need a 32-bit-long hole for it at
- * the end, so we have to add 32 extra cycles shifting in zeros at the
- * end of every message,
- *
- * So the standard trick is to rearrage merging in the next_input_bit()
- * until the moment it's needed. Then the first 32 cycles can be precomputed,
- * and merging in the final 32 zero bits to make room for the CRC can be
- * skipped entirely.
- * This changes the code to:
- * for (i = 0; i < input_bits; i++) {
- * remainder ^= next_input_bit() << 31;
- * multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
- * remainder = (remainder << 1) ^ multiple;
- * }
- * With this optimization, the little-endian code is simpler:
- * for (i = 0; i < input_bits; i++) {
- * remainder ^= next_input_bit();
- * multiple = (remainder & 1) ? CRCPOLY : 0;
- * remainder = (remainder >> 1) ^ multiple;
- * }
- *
- * Note that the other details of endianness have been hidden in CRCPOLY
- * (which must be bit-reversed) and next_input_bit().
- *
- * However, as long as next_input_bit is returning the bits in a sensible
- * order, we can actually do the merging 8 or more bits at a time rather
- * than one bit at a time:
- * for (i = 0; i < input_bytes; i++) {
- * remainder ^= next_input_byte() << 24;
- * for (j = 0; j < 8; j++) {
- * multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
- * remainder = (remainder << 1) ^ multiple;
- * }
- * }
- * Or in little-endian:
- * for (i = 0; i < input_bytes; i++) {
- * remainder ^= next_input_byte();
- * for (j = 0; j < 8; j++) {
- * multiple = (remainder & 1) ? CRCPOLY : 0;
- * remainder = (remainder << 1) ^ multiple;
- * }
- * }
- * If the input is a multiple of 32 bits, you can even XOR in a 32-bit
- * word at a time and increase the inner loop count to 32.
- *
- * You can also mix and match the two loop styles, for example doing the
- * bulk of a message byte-at-a-time and adding bit-at-a-time processing
- * for any fractional bytes at the end.
- *
- * The only remaining optimization is to the byte-at-a-time table method.
- * Here, rather than just shifting one bit of the remainder to decide
- * in the correct multiple to subtract, we can shift a byte at a time.
- * This produces a 40-bit (rather than a 33-bit) intermediate remainder,
- * but again the multiple of the polynomial to subtract depends only on
- * the high bits, the high 8 bits in this case.
- *
- * The multiple we need in that case is the low 32 bits of a 40-bit
- * value whose high 8 bits are given, and which is a multiple of the
- * generator polynomial. This is simply the CRC-32 of the given
- * one-byte message.
- *
- * Two more details: normally, appending zero bits to a message which
- * is already a multiple of a polynomial produces a larger multiple of that
- * polynomial. To enable a CRC to detect this condition, it's common to
- * invert the CRC before appending it. This makes the remainder of the
- * message+crc come out not as zero, but some fixed non-zero value.
- *
- * The same problem applies to zero bits prepended to the message, and
- * a similar solution is used. Instead of starting with a remainder of
- * 0, an initial remainder of all ones is used. As long as you start
- * the same way on decoding, it doesn't make a difference.
- */
-
-#ifdef UNITTEST
-
-#include <stdlib.h>
-#include <stdio.h>
-
-const __u8 byte_rev_table[256] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
-};
-
-static inline __u8 bitrev8(__u8 byte)
-{
- return byte_rev_table[byte];
-}
-
-static inline __u16 bitrev16(__u16 x)
-{
- return (bitrev8(x & 0xff) << 8) | bitrev8(x >> 8);
-}
-
-/**
- * bitrev32 - reverse the order of bits in a u32 value
- * @x: value to be bit-reversed
- */
-static __u32 bitrev32(__u32 x)
-{
- return (bitrev16(x & 0xffff) << 16) | bitrev16(x >> 16);
-}
-
-#if 0 /*Not used at present */
-
-static void
-buf_dump(char const *prefix, unsigned char const *buf, size_t len)
-{
- fputs(prefix, stdout);
- while (len--)
- printf(" %02x", *buf++);
- putchar('\n');
-
-}
-#endif
-
-static void bytereverse(unsigned char *buf, size_t len)
-{
- while (len--) {
- unsigned char x = bitrev8(*buf);
- *buf++ = x;
- }
-}
-
-static void random_garbage(unsigned char *buf, size_t len)
-{
- while (len--)
- *buf++ = (unsigned char) random();
-}
-
-#if 0 /* Not used at present */
-static void store_le(__u32 x, unsigned char *buf)
-{
- buf[0] = (unsigned char) x;
- buf[1] = (unsigned char) (x >> 8);
- buf[2] = (unsigned char) (x >> 16);
- buf[3] = (unsigned char) (x >> 24);
-}
-#endif
-
-static void store_be(__u32 x, unsigned char *buf)
-{
- buf[0] = (unsigned char) (x >> 24);
- buf[1] = (unsigned char) (x >> 16);
- buf[2] = (unsigned char) (x >> 8);
- buf[3] = (unsigned char) x;
-}
-
-/*
- * This checks that CRC(buf + CRC(buf)) = 0, and that
- * CRC commutes with bit-reversal. This has the side effect
- * of bytewise bit-reversing the input buffer, and returns
- * the CRC of the reversed buffer.
- */
-static __u32 test_step(__u32 init, unsigned char *buf, size_t len)
-{
- __u32 crc1, crc2;
- size_t i;
-
- crc1 = crc32_be(init, buf, len);
- store_be(crc1, buf + len);
- crc2 = crc32_be(init, buf, len + 4);
- if (crc2)
- printf("\nCRC cancellation fail: 0x%08x should be 0\n",
- crc2);
-
- for (i = 0; i <= len + 4; i++) {
- crc2 = crc32_be(init, buf, i);
- crc2 = crc32_be(crc2, buf + i, len + 4 - i);
- if (crc2)
- printf("\nCRC split fail: 0x%08x\n", crc2);
- }
-
- /* Now swap it around for the other test */
-
- bytereverse(buf, len + 4);
- init = bitrev32(init);
- crc2 = bitrev32(crc1);
- if (crc1 != bitrev32(crc2))
- printf("\nBit reversal fail: 0x%08x -> 0x%08x -> 0x%08x\n",
- crc1, crc2, bitrev32(crc2));
- crc1 = crc32_le(init, buf, len);
- if (crc1 != crc2)
- printf("\nCRC endianness fail: 0x%08x != 0x%08x\n", crc1,
- crc2);
- crc2 = crc32_le(init, buf, len + 4);
- if (crc2)
- printf("\nCRC cancellation fail: 0x%08x should be 0\n",
- crc2);
-
- for (i = 0; i <= len + 4; i++) {
- crc2 = crc32_le(init, buf, i);
- crc2 = crc32_le(crc2, buf + i, len + 4 - i);
- if (crc2)
- printf("\nCRC split fail: 0x%08x\n", crc2);
- }
-
- return crc1;
-}
-
-#define SIZE 64
-#define INIT1 0
-#define INIT2 0
-
-int main(int argc, char **argv)
-{
- unsigned char buf1[SIZE + 4];
- unsigned char buf2[SIZE + 4];
- unsigned char buf3[SIZE + 4];
- int i, j;
- __u32 crc1, crc2, crc3;
- int exit_status = 0;
-
- for (i = 0; i <= SIZE; i++) {
- printf("\rTesting length %d...", i);
- fflush(stdout);
- random_garbage(buf1, i);
- random_garbage(buf2, i);
- for (j = 0; j < i; j++)
- buf3[j] = buf1[j] ^ buf2[j];
-
- crc1 = test_step(INIT1, buf1, i);
- crc2 = test_step(INIT2, buf2, i);
- /* Now check that CRC(buf1 ^ buf2) = CRC(buf1) ^ CRC(buf2) */
- crc3 = test_step(INIT1 ^ INIT2, buf3, i);
- if (crc3 != (crc1 ^ crc2)) {
- printf("CRC XOR fail: 0x%08x != 0x%08x ^ 0x%08x\n",
- crc3, crc1, crc2);
- exit_status++;
- }
- }
- printf("\nAll test complete. No failures expected.\n");
- return 0;
-}
-
-#endif /* UNITTEST */
+++ /dev/null
-/*
- * There are multiple 16-bit CRC polynomials in common use, but this is
- * *the* standard CRC-32 polynomial, first popularized by Ethernet.
- * x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x^1+x^0
- */
-#define CRCPOLY_LE 0xedb88320
-#define CRCPOLY_BE 0x04c11db7
-
-/* How many bits at a time to use. Requires a table of 4<<CRC_xx_BITS bytes. */
-/* For less performance-sensitive, use 4 */
-#ifndef CRC_LE_BITS
-# define CRC_LE_BITS 8
-#endif
-#ifndef CRC_BE_BITS
-# define CRC_BE_BITS 8
-#endif
-
-/*
- * Little-endian CRC computation. Used with serial bit streams sent
- * lsbit-first. Be sure to use cpu_to_le32() to append the computed CRC.
- */
-#if CRC_LE_BITS > 8 || CRC_LE_BITS < 1 || CRC_LE_BITS & CRC_LE_BITS-1
-# error CRC_LE_BITS must be a power of 2 between 1 and 8
-#endif
-
-/*
- * Big-endian CRC computation. Used with serial bit streams sent
- * msbit-first. Be sure to use cpu_to_be32() to append the computed CRC.
- */
-#if CRC_BE_BITS > 8 || CRC_BE_BITS < 1 || CRC_BE_BITS & CRC_BE_BITS-1
-# error CRC_BE_BITS must be a power of 2 between 1 and 8
-#endif
-
-#define ___constant_swab32(x) \
- ((__u32)( \
- (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
- (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
- (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
- (((__u32)(x) & (__u32)0xff000000UL) >> 24) ))
-
-
-#ifdef WORDS_BIGENDIAN
-#define __constant_cpu_to_le32(x) ___constant_swab32((x))
-#define __constant_cpu_to_be32(x) (x)
-#define __be32_to_cpu(x) (x)
-#define __cpu_to_be32(x) (x)
-#define __cpu_to_le32(x) (ext2fs_swab32((x)))
-#define __le32_to_cpu(x) (ext2fs_swab32((x)))
-#else
-#define __constant_cpu_to_le32(x) (x)
-#define __constant_cpu_to_be32(x) ___constant_swab32((x))
-#define __be32_to_cpu(x) (ext2fs_swab32((x)))
-#define __cpu_to_be32(x) (ext2fs_swab32((x)))
-#define __cpu_to_le32(x) (x)
-#define __le32_to_cpu(x) (x)
-#endif
-
-#if (__GNUC__ >= 3)
-#define likely(x) __builtin_expect(!!(x), 1)
-#define unlikely(x) __builtin_expect(!!(x), 0)
-#else
-#define likely(x) (x)
-#define unlikely(x) (x)
-#endif
extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
int replace_bad_blocks);
-/* crc32.c */
-extern __u32 crc32_be(__u32 crc, unsigned char const *p, size_t len);
-
/* dirinfo.c */
extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
extern void e2fsck_free_dir_info(e2fsck_t ctx);
extern int region_allocate(region_t region, region_addr_t start, int n);
/* rehash.c */
+void e2fsck_rehash_dir_later(e2fsck_t ctx, ext2_ino_t ino);
+int e2fsck_dir_will_be_rehashed(e2fsck_t ctx, ext2_ino_t ino);
errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
void e2fsck_rehash_directories(e2fsck_t ctx);
+++ /dev/null
-/*
- * gen_crc32table.c --- Generate CRC32 tables.
- *
- * Copyright (C) 2008 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#include <stdio.h>
-#include "crc32defs.h"
-#include <inttypes.h>
-
-#define ENTRIES_PER_LINE 4
-
-#define LE_TABLE_SIZE (1 << CRC_LE_BITS)
-#define BE_TABLE_SIZE (1 << CRC_BE_BITS)
-
-static uint32_t crc32table_le[LE_TABLE_SIZE];
-static uint32_t crc32table_be[BE_TABLE_SIZE];
-
-/**
- * crc32init_le() - allocate and initialize LE table data
- *
- * crc is the crc of the byte i; other entries are filled in based on the
- * fact that crctable[i^j] = crctable[i] ^ crctable[j].
- *
- */
-static void crc32init_le(void)
-{
- unsigned i, j;
- uint32_t crc = 1;
-
- crc32table_le[0] = 0;
-
- for (i = 1 << (CRC_LE_BITS - 1); i; i >>= 1) {
- crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
- for (j = 0; j < LE_TABLE_SIZE; j += 2 * i)
- crc32table_le[i + j] = crc ^ crc32table_le[j];
- }
-}
-
-/**
- * crc32init_be() - allocate and initialize BE table data
- */
-static void crc32init_be(void)
-{
- unsigned i, j;
- uint32_t crc = 0x80000000;
-
- crc32table_be[0] = 0;
-
- for (i = 1; i < BE_TABLE_SIZE; i <<= 1) {
- crc = (crc << 1) ^ ((crc & 0x80000000) ? CRCPOLY_BE : 0);
- for (j = 0; j < i; j++)
- crc32table_be[i + j] = crc ^ crc32table_be[j];
- }
-}
-
-static void output_table(uint32_t table[], int len, const char *trans)
-{
- int i;
-
- for (i = 0; i < len - 1; i++) {
- if (i % ENTRIES_PER_LINE == 0)
- printf("\n");
- printf("%s(0x%8.8xL), ", trans, table[i]);
- }
- printf("%s(0x%8.8xL)\n", trans, table[len - 1]);
-}
-
-#ifdef __GNUC__
-#define ATTR(x) __attribute__(x)
-#else
-#define ATTR(x)
-#endif
-
-int main(int argc ATTR((unused)), char** argv ATTR((unused)))
-{
- printf("/* this file is generated - do not edit */\n\n");
-
- printf("#ifdef UNITTEST\n");
- if (CRC_LE_BITS > 1) {
- crc32init_le();
- printf("static const __u32 crc32table_le[] = {");
- output_table(crc32table_le, LE_TABLE_SIZE, "tole");
- printf("};\n");
- }
- printf("#endif /* UNITTEST */\n");
-
- if (CRC_BE_BITS > 1) {
- crc32init_be();
- printf("static const __u32 crc32table_be[] = {");
- output_table(crc32table_be, BE_TABLE_SIZE, "tobe");
- printf("};\n");
- }
-
- return 0;
-}
free(cache);
}
-/*
- * helper functions to deal with 32 or 64bit block numbers.
- */
-_INLINE_ size_t journal_tag_bytes(journal_t *journal)
-{
- if (JFS_HAS_INCOMPAT_FEATURE(journal, JFS_FEATURE_INCOMPAT_64BIT))
- return JBD_TAG_SIZE64;
- else
- return JBD_TAG_SIZE32;
-}
-
#undef _INLINE_
#endif
*/
#undef USE_INODE_IO
+/* Checksumming functions */
+static int e2fsck_journal_verify_csum_type(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ if (!JFS_HAS_INCOMPAT_FEATURE(j, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ return jsb->s_checksum_type == JBD2_CRC32C_CHKSUM;
+}
+
+static __u32 e2fsck_journal_sb_csum(journal_superblock_t *jsb)
+{
+ __u32 crc, old_crc;
+
+ old_crc = jsb->s_checksum;
+ jsb->s_checksum = 0;
+ crc = ext2fs_crc32c_le(~0, (unsigned char *)jsb,
+ sizeof(journal_superblock_t));
+ jsb->s_checksum = old_crc;
+
+ return crc;
+}
+
+static int e2fsck_journal_sb_csum_verify(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ __u32 provided, calculated;
+
+ if (!JFS_HAS_INCOMPAT_FEATURE(j, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ provided = ext2fs_be32_to_cpu(jsb->s_checksum);
+ calculated = e2fsck_journal_sb_csum(jsb);
+
+ return provided == calculated;
+}
+
+static errcode_t e2fsck_journal_sb_csum_set(journal_t *j,
+ journal_superblock_t *jsb)
+{
+ __u32 crc;
+
+ if (!JFS_HAS_INCOMPAT_FEATURE(j, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ return 0;
+
+ crc = e2fsck_journal_sb_csum(jsb);
+ jsb->s_checksum = ext2fs_cpu_to_be32(crc);
+ return 0;
+}
+
/* Kernel compatibility functions for handling the journal. These allow us
* to use the recovery.c file virtually unchanged from the kernel, so we
* don't have to do much to keep kernel and user recovery in sync.
if (JFS_HAS_RO_COMPAT_FEATURE(journal, ~JFS_KNOWN_ROCOMPAT_FEATURES))
return EXT2_ET_RO_UNSUPP_FEATURE;
+ /* Checksum v1 and v2 are mutually exclusive features. */
+ if (JFS_HAS_INCOMPAT_FEATURE(journal, JFS_FEATURE_INCOMPAT_CSUM_V2) &&
+ JFS_HAS_COMPAT_FEATURE(journal, JFS_FEATURE_COMPAT_CHECKSUM))
+ return EXT2_ET_CORRUPT_SUPERBLOCK;
+
+ if (!e2fsck_journal_verify_csum_type(journal, jsb) ||
+ !e2fsck_journal_sb_csum_verify(journal, jsb))
+ return EXT2_ET_CORRUPT_SUPERBLOCK;
+
/* We have now checked whether we know enough about the journal
* format to be able to proceed safely, so any other checks that
* fail we should attempt to recover from. */
for (i = 0; i < 4; i ++)
new_seq ^= u.val[i];
jsb->s_sequence = htonl(new_seq);
+ e2fsck_journal_sb_csum_set(journal, jsb);
mark_buffer_dirty(journal->j_sb_buffer);
ll_rw_block(WRITE, 1, &journal->j_sb_buffer);
jsb->s_sequence = htonl(journal->j_transaction_sequence);
if (reset)
jsb->s_start = 0; /* this marks the journal as empty */
+ e2fsck_journal_sb_csum_set(journal, jsb);
mark_buffer_dirty(journal->j_sb_buffer);
}
brelse(journal->j_sb_buffer);
ctx->fs->super->s_state |= EXT2_ERROR_FS;
ext2fs_mark_super_dirty(ctx->fs);
journal->j_superblock->s_errno = 0;
+ e2fsck_journal_sb_csum_set(journal, journal->j_superblock);
mark_buffer_dirty(journal->j_sb_buffer);
}
fprintf(f, "%u", dirent->inode);
break;
case 'n':
- len = dirent->name_len & 0xFF;
+ len = ext2fs_dirent_name_len(dirent);
if ((ext2fs_get_rec_len(fs, dirent, &rec_len) == 0) &&
(len > rec_len))
len = rec_len;
fprintf(f, "%u", rec_len);
break;
case 'l':
- fprintf(f, "%u", dirent->name_len & 0xFF);
+ fprintf(f, "%u", ext2fs_dirent_name_len(dirent));
break;
case 't':
- fprintf(f, "%u", dirent->name_len >> 8);
+ fprintf(f, "%u", ext2fs_dirent_file_type(dirent));
break;
default:
no_dirent:
struct ext2fs_extent extent;
if ((inode->i_size_high || inode->i_size == 0) ||
- (inode->i_flags & EXT2_INDEX_FL))
+ (inode->i_flags & EXT2_INDEX_FL) ||
+ (inode->i_flags & EXT4_INLINE_DATA_FL))
return 0;
if (inode->i_flags & EXT4_EXTENTS_FL) {
blk64_t blk;
unsigned int i, rec_len, not_device = 0;
int extent_fs;
+ int inlinedata_fs;
/*
* If the mode looks OK, we believe it. If the first block in
* For extent mapped files, we don't do any sanity checking:
* just try to get the phys block of logical block 0 and run
* with it.
+ *
+ * For inline data files, we just try to get the size of inline
+ * data. If it's true, we will treat it as a directory.
*/
extent_fs = (ctx->fs->super->s_feature_incompat &
EXT3_FEATURE_INCOMPAT_EXTENTS);
- if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
+ inlinedata_fs = (ctx->fs->super->s_feature_incompat &
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA);
+ if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
+ size_t size;
+
+ if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
+ return;
+ /* device files never have a "system.data" entry */
+ goto isdir;
+ } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
/* extent mapped */
if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
&blk))
/* read the first block */
ehandler_operation(_("reading directory block"));
- retval = ext2fs_read_dir_block3(ctx->fs, blk, buf, 0);
+ retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
ehandler_operation(0);
if (retval)
return;
retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
if (retval)
return;
- if (((dirent->name_len & 0xFF) != 1) ||
+ if ((ext2fs_dirent_name_len(dirent) != 1) ||
(dirent->name[0] != '.') ||
(dirent->inode != pctx->ino) ||
(rec_len < 12) ||
retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
if (retval)
return;
- if (((dirent->name_len & 0xFF) != 2) ||
+ if ((ext2fs_dirent_name_len(dirent) != 2) ||
(dirent->name[0] != '.') ||
(dirent->name[1] != '.') ||
(rec_len < 12) ||
(rec_len % 4))
return;
+isdir:
if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
e2fsck_write_inode_full(ctx, pctx->ino, inode,
*ret = 0;
}
+static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
+ e2fsck_t ctx,
+ struct problem_context *pctx)
+{
+ errcode_t retval;
+ struct ext2_inode_large inode;
+
+ /*
+ * Reread inode. If we don't see checksum error, then this inode
+ * has been fixed elsewhere.
+ */
+ retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+ sizeof(inode));
+ if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
+ return retval;
+ if (!retval)
+ return 0;
+
+ /*
+ * Checksum still doesn't match. That implies that the inode passes
+ * all the sanity checks, so maybe the checksum is simply corrupt.
+ * See if the user will go for fixing that.
+ */
+ if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
+ return 0;
+
+ retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+ sizeof(inode));
+ if (retval)
+ return retval;
+
+ return 0;
+}
+
void e2fsck_pass1(e2fsck_t ctx)
{
int i;
struct ext2_super_block *sb = ctx->fs->super;
const char *old_op;
unsigned int save_type;
- int imagic_fs, extent_fs;
+ int imagic_fs, extent_fs, inlinedata_fs;
int low_dtime_check = 1;
int inode_size;
+ int failed_csum = 0;
init_resource_track(&rtrack, ctx->fs->io);
clear_problem_context(&pctx);
imagic_fs = (sb->s_feature_compat & EXT2_FEATURE_COMPAT_IMAGIC_INODES);
extent_fs = (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS);
+ inlinedata_fs = (sb->s_feature_incompat &
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA);
/*
* Allocate bitmaps structures
}
block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
"block interate buffer");
- e2fsck_use_inode_shortcuts(ctx, 1);
+ if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
+ e2fsck_use_inode_shortcuts(ctx, 1);
old_op = ehandler_operation(_("opening inode scan"));
pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
&scan);
ext2fs_mark_block_bitmap2(ctx->block_found_map,
fs->super->s_mmp_block);
+ /* Set up ctx->lost_and_found if possible */
+ (void) e2fsck_get_lost_and_found(ctx, 0);
+
while (1) {
if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
if (e2fsck_mmp_update(fs))
ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
continue;
}
- if (pctx.errcode) {
+ if (pctx.errcode &&
+ pctx.errcode != EXT2_ET_INODE_CSUM_INVALID) {
fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
goto endit;
pctx.ino = ino;
pctx.inode = inode;
ctx->stashed_ino = ino;
+
+ /* Clear corrupt inode? */
+ if (pctx.errcode == EXT2_ET_INODE_CSUM_INVALID) {
+ if (fix_problem(ctx, PR_1_INODE_CSUM_INVALID, &pctx))
+ goto clear_inode;
+ failed_csum = 1;
+ }
+
if (inode->i_links_count) {
pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
ino, inode->i_links_count);
}
}
+ /* Test for incorrect inline_data flags settings. */
+ if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
+ (ino >= EXT2_FIRST_INODE(fs->super))) {
+ size_t size = 0;
+
+ pctx.errcode = ext2fs_inline_data_size(fs, ino, &size);
+ if (!pctx.errcode && size &&
+ !fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
+ sb->s_feature_incompat |=
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA;
+ ext2fs_mark_super_dirty(fs);
+ inlinedata_fs = 1;
+ } else if (!fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
+ e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
+ continue;
+ }
+ }
+
/*
* Test for incorrect extent flag settings.
*
ctx->fs_sockets_count++;
} else
mark_inode_bad(ctx, ino);
- if (!(inode->i_flags & EXT4_EXTENTS_FL)) {
+ if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
+ !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
if (inode->i_block[EXT2_IND_BLOCK])
ctx->fs_ind_count++;
if (inode->i_block[EXT2_DIND_BLOCK])
ctx->fs_tind_count++;
}
if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
+ !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
(inode->i_block[EXT2_IND_BLOCK] ||
inode->i_block[EXT2_DIND_BLOCK] ||
inode->i_block[EXT2_TIND_BLOCK] ||
} else
check_blocks(ctx, &pctx, block_buf);
+ /*
+ * If the inode failed the checksum and the user didn't
+ * clear the inode, test the checksum again -- if it still
+ * fails, ask the user if the checksum should be corrected.
+ */
+ if (failed_csum) {
+ pctx.errcode = recheck_bad_inode_checksum(fs, ino, ctx,
+ &pctx);
+ if (pctx.errcode) {
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ }
+
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
goto endit;
if (inode)
ext2fs_free_mem(&inode);
+ /*
+ * The l+f inode may have been cleared, so zap it now and
+ * later passes will recalculate it if necessary
+ */
+ ctx->lost_and_found = 0;
+
if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
}
if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
break;
pctx.blk = blk;
- pctx.errcode = ext2fs_read_ext_attr2(fs, blk, block_buf);
+ pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
+ pctx.ino);
if (pctx.errcode) {
fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
return;
pctx.num = should_be;
if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
header->h_refcount = should_be;
- pctx.errcode = ext2fs_write_ext_attr2(fs, blk,
- block_buf);
+ pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
+ block_buf,
+ pctx.ino);
if (pctx.errcode) {
fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
&pctx);
struct ext2_ext_attr_entry *entry;
int count;
region_t region = 0;
+ int failed_csum = 0;
blk = ext2fs_file_acl_block(fs, inode);
if (blk == 0)
* validate it
*/
pctx->blk = blk;
- pctx->errcode = ext2fs_read_ext_attr2(fs, blk, block_buf);
+ pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
+ if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
+ if (fix_problem(ctx, PR_1_EA_BLOCK_CSUM_INVALID, pctx))
+ goto clear_extattr;
+ failed_csum = 1;
+ }
if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
goto clear_extattr;
header = (struct ext2_ext_attr_header *) block_buf;
}
region_free(region);
+ /*
+ * We only get here if there was no other errors that were fixed.
+ * If there was a checksum fail, ask to correct it.
+ */
+ if (failed_csum &&
+ fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
+ pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
+ pctx->ino);
+ if (pctx->errcode)
+ return 0;
+ }
+
count = header->h_refcount - 1;
if (count)
ea_refcount_store(ctx->refcount, blk, count);
int is_dir, is_leaf;
problem_t problem;
struct ext2_extent_info info;
+ int failed_csum;
pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
if (pctx->errcode)
pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
&extent);
- while (!pctx->errcode && info.num_entries-- > 0) {
+ while ((pctx->errcode == 0 ||
+ pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
+ info.num_entries-- > 0) {
+ failed_csum = 0;
is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
last_lblk = extent.e_lblk + extent.e_len - 1;
problem = 0;
+ /* Ask to clear a corrupt extent block */
+ if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) {
+ pctx->blk = extent.e_pblk;
+ pctx->blk2 = extent.e_lblk;
+ pctx->num = extent.e_len;
+ problem = PR_1_EXTENT_CSUM_INVALID;
+ if (fix_problem(ctx, problem, pctx))
+ goto fix_problem_now;
+ failed_csum = 1;
+ }
+
if (extent.e_pblk == 0 ||
extent.e_pblk < ctx->fs->super->s_first_data_block ||
extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
(1 << (21 - ctx->fs->super->s_log_block_size))))
problem = PR_1_TOOBIG_DIR;
+ /* Corrupt but passes checks? Ask to fix checksum. */
+ if (failed_csum) {
+ pctx->blk = extent.e_pblk;
+ pctx->blk2 = extent.e_lblk;
+ pctx->num = extent.e_len;
+ problem = 0;
+ if (fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID,
+ pctx))
+ ext2fs_extent_replace(ehandle, 0, &extent);
+ }
+
if (problem) {
report_problem:
pctx->blk = extent.e_pblk;
pctx->num = extent.e_len;
pctx->blkcount = extent.e_lblk + extent.e_len;
if (fix_problem(ctx, problem, pctx)) {
+fix_problem_now:
e2fsck_read_bitmaps(ctx);
pctx->errcode =
ext2fs_extent_delete(ehandle, 0);
if (pctx->errcode) {
pctx->str = "EXT2_EXTENT_DOWN";
problem = PR_1_EXTENT_HEADER_INVALID;
- if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
+ if (pctx->errcode ==
+ EXT2_ET_EXTENT_HEADER_BAD ||
+ pctx->errcode ==
+ EXT2_ET_EXTENT_CSUM_INVALID)
goto report_problem;
return;
}
ext2fs_extent_free(ehandle);
}
+/*
+ * In fact we don't need to check blocks for an inode with inline data
+ * because this inode doesn't have any blocks. In this function all
+ * we need to do is add this inode into dblist when it is a directory.
+ */
+static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
+ struct process_block_struct *pb)
+{
+ if (!pb->is_dir) {
+ pctx->errcode = 0;
+ return;
+ }
+
+ pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
+ if (pctx->errcode) {
+ pctx->blk = 0;
+ pctx->num = 0;
+ fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ }
+}
+
/*
* This subroutine is called on each inode to account for all of the
* blocks used by that inode.
unsigned bad_size = 0;
int dirty_inode = 0;
int extent_fs;
+ int inlinedata_fs;
__u64 size;
pb.ino = ino;
extent_fs = (ctx->fs->super->s_feature_incompat &
EXT3_FEATURE_INCOMPAT_EXTENTS);
+ inlinedata_fs = (ctx->fs->super->s_feature_incompat &
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA);
if (inode->i_flags & EXT2_COMPRBLK_FL) {
if (fs->super->s_feature_incompat &
*/
pb.last_init_lblock = pb.last_block;
}
+ } else {
+ /* check inline data */
+ if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
+ check_blocks_inline_data(ctx, pctx, &pb);
}
end_problem_latch(ctx, PR_LATCH_BLOCK);
end_problem_latch(ctx, PR_LATCH_TOOBIG);
}
}
- if (!pb.num_blocks && pb.is_dir) {
+ if (!pb.num_blocks && pb.is_dir &&
+ !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
ctx->fs_directory_count--;
#endif
if (pb.is_dir) {
int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
- if (inode->i_size & (fs->blocksize - 1))
+ if (inode->i_flags & EXT4_INLINE_DATA_FL) {
+ size_t size;
+
+ if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
+ bad_size = 5;
+ if (size != inode->i_size)
+ bad_size = 5;
+ } else if (inode->i_size & (fs->blocksize - 1))
bad_size = 5;
else if (nblock > (pb.last_block + 1))
bad_size = 1;
}
if (ctx->dirs_to_hash && pb.is_dir &&
+ !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
!(inode->i_flags & EXT2_INDEX_FL) &&
((inode->i_size / fs->blocksize) >= 3))
- ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
+ e2fsck_rehash_dir_later(ctx, ino);
out:
if (dirty_inode)
ext2_ino_t ino;
int dup_blocks;
blk64_t cur_cluster;
+ blk64_t last_blk;
struct ext2_inode *inode;
struct problem_context *pctx;
};
ext2_inode_scan scan;
struct process_block_struct pb;
struct problem_context pctx;
+ problem_t op;
clear_problem_context(&pctx);
pb.dup_blocks = 0;
pb.inode = &inode;
pb.cur_cluster = ~0;
+ pb.last_blk = 0;
+ pb.pctx->blk = pb.pctx->blk2 = 0;
if (ext2fs_inode_has_valid_blocks2(fs, &inode) ||
(ino == EXT2_BAD_INO))
ext2fs_file_acl_block_set(fs, &inode, blk);
}
if (pb.dup_blocks) {
+ if (ino != EXT2_BAD_INO) {
+ op = pctx.blk == pctx.blk2 ?
+ PR_1B_DUP_BLOCK : PR_1B_DUP_RANGE;
+ fix_problem(ctx, op, pb.pctx);
+ }
end_problem_latch(ctx, PR_LATCH_DBLOCK);
if (ino >= EXT2_FIRST_INODE(fs->super) ||
ino == EXT2_ROOT_INO)
struct process_block_struct *p;
e2fsck_t ctx;
blk64_t lc;
+ problem_t op;
if (HOLE_BLKADDR(*block_nr))
return 0;
/* OK, this is a duplicate block */
if (p->ino != EXT2_BAD_INO) {
- p->pctx->blk = *block_nr;
- fix_problem(ctx, PR_1B_DUP_BLOCK, p->pctx);
+ if (p->last_blk + 1 != *block_nr) {
+ if (p->last_blk) {
+ op = p->pctx->blk == p->pctx->blk2 ?
+ PR_1B_DUP_BLOCK :
+ PR_1B_DUP_RANGE;
+ fix_problem(ctx, op, p->pctx);
+ }
+ p->pctx->blk = *block_nr;
+ }
+ p->pctx->blk2 = *block_nr;
+ p->last_blk = *block_nr;
}
p->dup_blocks++;
ext2fs_mark_inode_bitmap2(inode_dup_map, p->ino);
if (ext2fs_file_acl_block(fs, &dp->inode) &&
(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
count = 1;
- pctx.errcode = ext2fs_adjust_ea_refcount2(fs,
+ pctx.errcode = ext2fs_adjust_ea_refcount3(fs,
ext2fs_file_acl_block(fs, &dp->inode),
- block_buf, -1, &count);
+ block_buf, -1, &count, ino);
if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
pctx.errcode = 0;
count = 1;
int a_len, b_len;
de_a = (const struct ext2_dir_entry *) a;
- a_len = de_a->name_len & 0xFF;
+ a_len = ext2fs_dirent_name_len(de_a);
de_b = (const struct ext2_dir_entry *) b;
- b_len = de_b->name_len & 0xFF;
+ b_len = ext2fs_dirent_name_len(de_b);
if (a_len != b_len)
return (a_len - b_len);
if (!dirent->inode)
problem = PR_2_MISSING_DOT;
- else if (((dirent->name_len & 0xFF) != 1) ||
+ else if ((ext2fs_dirent_name_len(dirent) != 1) ||
(dirent->name[0] != '.'))
problem = PR_2_1ST_NOT_DOT;
else if (dirent->name[1] != '\0')
if (rec_len < 12)
rec_len = dirent->rec_len = 12;
dirent->inode = ino;
- dirent->name_len = 1;
+ ext2fs_dirent_set_name_len(dirent, 1);
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
dirent->name[0] = '.';
dirent->name[1] = '\0';
status = 1;
(void) ext2fs_set_rec_len(ctx->fs, new_len,
nextdir);
nextdir->inode = 0;
- nextdir->name_len = 0;
+ ext2fs_dirent_set_name_len(nextdir, 0);
+ ext2fs_dirent_set_file_type(nextdir,
+ EXT2_FT_UNKNOWN);
status = 1;
}
}
if (!dirent->inode)
problem = PR_2_MISSING_DOT_DOT;
- else if (((dirent->name_len & 0xFF) != 2) ||
+ else if ((ext2fs_dirent_name_len(dirent) != 2) ||
(dirent->name[0] != '.') ||
(dirent->name[1] != '.'))
problem = PR_2_2ND_NOT_DOT_DOT;
* inode. This will get fixed in pass 3.
*/
dirent->inode = EXT2_ROOT_INO;
- dirent->name_len = 2;
+ ext2fs_dirent_set_name_len(dirent, 2);
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
dirent->name[0] = '.';
dirent->name[1] = '.';
dirent->name[2] = '\0';
int fixup = -1;
int ret = 0;
- for ( i = 0; i < (dirent->name_len & 0xFF); i++) {
+ for ( i = 0; i < ext2fs_dirent_name_len(dirent); i++) {
if (dirent->name[i] == '/' || dirent->name[i] == '\0') {
if (fixup < 0) {
fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx);
ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
struct problem_context *pctx)
{
- int filetype = dirent->name_len >> 8;
+ int filetype = ext2fs_dirent_file_type(dirent);
int should_be = EXT2_FT_UNKNOWN;
struct ext2_inode inode;
if (filetype == 0 ||
!fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx))
return 0;
- dirent->name_len = dirent->name_len & 0xFF;
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
return 1;
}
pctx) == 0)
return 0;
- dirent->name_len = (dirent->name_len & 0xFF) | should_be << 8;
+ ext2fs_dirent_set_file_type(dirent, should_be);
return 1;
}
struct ext2_db_entry2 *db,
struct check_dir_struct *cd,
struct dx_dir_info *dx_dir,
- char *block_buf)
+ char *block_buf, int failed_csum)
{
struct ext2_dx_root_info *root;
struct ext2_dx_entry *ent;
ext2_dirhash_t min_hash = 0xffffffff;
ext2_dirhash_t max_hash = 0;
ext2_dirhash_t hash = 0, prev_hash;
+ int csum_size = 0;
if (db->blockcnt == 0) {
root = (struct ext2_dx_root_info *) (block_buf + 24);
#endif
ent = (struct ext2_dx_entry *) (block_buf + 24 + root->info_length);
+
+ if (failed_csum &&
+ (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) ||
+ fix_problem(cd->ctx, PR_2_HTREE_ROOT_CSUM_INVALID,
+ &cd->pctx)))
+ goto clear_and_exit;
} else {
ent = (struct ext2_dx_entry *) (block_buf+8);
+
+ if (failed_csum &&
+ (e2fsck_dir_will_be_rehashed(cd->ctx, cd->pctx.ino) ||
+ fix_problem(cd->ctx, PR_2_HTREE_NODE_CSUM_INVALID,
+ &cd->pctx)))
+ goto clear_and_exit;
}
+
limit = (struct ext2_dx_countlimit *) ent;
#ifdef DX_DEBUG
#endif
count = ext2fs_le16_to_cpu(limit->count);
- expect_limit = (fs->blocksize - ((char *) ent - block_buf)) /
- sizeof(struct ext2_dx_entry);
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dx_tail);
+ expect_limit = (fs->blocksize -
+ (csum_size + ((char *) ent - block_buf))) /
+ sizeof(struct ext2_dx_entry);
if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) {
cd->pctx.num = ext2fs_le16_to_cpu(limit->limit);
if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx))
clear_and_exit:
clear_htree(cd->ctx, cd->pctx.ino);
dx_dir->numblocks = 0;
+ e2fsck_rehash_dir_later(cd->ctx, cd->pctx.ino);
}
#endif /* ENABLE_HTREE */
char *cp = (char *) dirent;
int left;
unsigned int rec_len, prev_rec_len;
- unsigned int name_len = dirent->name_len & 0xFF;
+ unsigned int name_len = ext2fs_dirent_name_len(dirent);
(void) ext2fs_get_rec_len(fs, dirent, &rec_len);
left = fs->blocksize - *offset - rec_len;
} else {
rec_len = fs->blocksize - *offset;
(void) ext2fs_set_rec_len(fs, rec_len, dirent);
- dirent->name_len = 0;
+ ext2fs_dirent_set_name_len(dirent, 0);
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
dirent->inode = 0;
}
}
+static int is_last_entry(ext2_filsys fs, int inline_data_size,
+ unsigned int offset, int csum_size)
+{
+ if (inline_data_size)
+ return (offset < inline_data_size);
+ else
+ return (offset < fs->blocksize - csum_size);
+}
+
static int check_dir_block(ext2_filsys fs,
struct ext2_db_entry2 *db,
void *priv_data)
#ifdef ENABLE_HTREE
struct dx_dirblock_info *dx_db = 0;
#endif /* ENABLE_HTREE */
- struct ext2_dir_entry *dirent, *prev;
+ struct ext2_dir_entry *dirent, *prev, dot, dotdot;
ext2_dirhash_t hash;
unsigned int offset = 0;
int dir_modified = 0;
struct problem_context pctx;
int dups_found = 0;
int ret;
+ int dx_csum_size = 0, de_csum_size = 0;
+ int failed_csum = 0;
+ int is_leaf = 1;
+ size_t inline_data_size = 0;
+ int filetype = 0;
cd = (struct check_dir_struct *) priv_data;
buf = cd->buf;
if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max))
return DIRENT_ABORT;
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ dx_csum_size = sizeof(struct ext2_dx_tail);
+ de_csum_size = sizeof(struct ext2_dir_entry_tail);
+ }
+
+ if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT2_FEATURE_INCOMPAT_FILETYPE))
+ filetype = EXT2_FT_DIR << 8;
+
/*
* Make sure the inode is still in use (could have been
* deleted in the duplicate/bad blocks pass.
cd->pctx.dirent = 0;
cd->pctx.num = 0;
- if (db->blk == 0) {
+ if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA)) {
+ errcode_t ec;
+
+ ec = ext2fs_inline_data_size(fs, ino, &inline_data_size);
+ if (ec && ec != EXT2_ET_NO_INLINE_DATA)
+ return DIRENT_ABORT;
+ }
+
+ if (db->blk == 0 && !inline_data_size) {
if (allocate_dir_block(ctx, db, buf, &cd->pctx))
return 0;
block_nr = db->blk;
#endif
ehandler_operation(_("reading directory block"));
- cd->pctx.errcode = ext2fs_read_dir_block3(fs, block_nr, buf, 0);
+ if (inline_data_size)
+ cd->pctx.errcode = ext2fs_inline_data_get(fs, ino, 0, buf, 0);
+ else
+ cd->pctx.errcode = ext2fs_read_dir_block4(fs, block_nr,
+ buf, 0, ino);
ehandler_operation(0);
if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED)
cd->pctx.errcode = 0; /* We'll handle this ourselves */
+ else if (cd->pctx.errcode == EXT2_ET_DIR_CSUM_INVALID) {
+ cd->pctx.errcode = 0; /* We'll handle this ourselves */
+ failed_csum = 1;
+ }
if (cd->pctx.errcode) {
+ char *buf2;
if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) {
ctx->flags |= E2F_FLAG_ABORT;
return DIRENT_ABORT;
}
- memset(buf, 0, fs->blocksize);
+ ext2fs_new_dir_block(fs, db->blockcnt == 0 ? ino : 0,
+ EXT2_ROOT_INO, &buf2);
+ memcpy(buf, buf2, fs->blocksize);
+ ext2fs_free_mem(&buf2);
}
#ifdef ENABLE_HTREE
dx_dir = e2fsck_get_dx_dir_info(ctx, ino);
dx_dir->depth = root->indirect_levels + 1;
} else if ((dirent->inode == 0) &&
(rec_len == fs->blocksize) &&
- (dirent->name_len == 0) &&
+ (ext2fs_dirent_name_len(dirent) == 0) &&
(ext2fs_le16_to_cpu(limit->limit) ==
- ((fs->blocksize-8) /
+ ((fs->blocksize - (8 + dx_csum_size)) /
sizeof(struct ext2_dx_entry))))
dx_db->type = DX_DIRBLOCK_NODE;
+ is_leaf = 0;
}
out_htree:
#endif /* ENABLE_HTREE */
+ /* Verify checksum. */
+ if (is_leaf && de_csum_size && !inline_data_size) {
+ /* No space for csum? Rebuild dirs in pass 3A. */
+ if (!ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf)) {
+ de_csum_size = 0;
+ if (e2fsck_dir_will_be_rehashed(ctx, ino))
+ goto skip_checksum;
+ if (!fix_problem(cd->ctx, PR_2_LEAF_NODE_MISSING_CSUM,
+ &cd->pctx))
+ goto skip_checksum;
+ e2fsck_rehash_dir_later(ctx, ino);
+ goto skip_checksum;
+ }
+ if (failed_csum) {
+ char *buf2;
+ if (!fix_problem(cd->ctx, PR_2_LEAF_NODE_CSUM_INVALID,
+ &cd->pctx))
+ goto skip_checksum;
+ ext2fs_new_dir_block(fs,
+ db->blockcnt == 0 ? ino : 0,
+ EXT2_ROOT_INO, &buf2);
+ memcpy(buf, buf2, fs->blocksize);
+ ext2fs_free_mem(&buf2);
+ dir_modified++;
+ failed_csum = 0;
+ }
+ }
+ /* htree nodes don't use fake dirents to store checksums */
+ if (!is_leaf)
+ de_csum_size = 0;
+
+skip_checksum:
dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp);
prev = 0;
do {
dgrp_t group;
ext2_ino_t first_unused_inode;
+ unsigned int name_len;
problem = 0;
- dirent = (struct ext2_dir_entry *) (buf + offset);
- (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
- cd->pctx.dirent = dirent;
- cd->pctx.num = offset;
- if (((offset + rec_len) > fs->blocksize) ||
- (rec_len < 12) ||
- ((rec_len % 4) != 0) ||
- (((dirent->name_len & (unsigned) 0xFF)+8) > rec_len)) {
- if (fix_problem(ctx, PR_2_DIR_CORRUPTED, &cd->pctx)) {
- salvage_directory(fs, dirent, prev, &offset);
- dir_modified++;
- continue;
- } else
- goto abort_free_dict;
+ if (!inline_data_size || dot_state > 1) {
+ dirent = (struct ext2_dir_entry *) (buf + offset);
+ (void) ext2fs_get_rec_len(fs, dirent, &rec_len);
+ cd->pctx.dirent = dirent;
+ cd->pctx.num = offset;
+ if (((offset + rec_len) > fs->blocksize) ||
+ (rec_len < 12) ||
+ ((rec_len % 4) != 0) ||
+ ((ext2fs_dirent_name_len(dirent) + 8) > rec_len)) {
+ if (fix_problem(ctx, PR_2_DIR_CORRUPTED, &cd->pctx)) {
+ salvage_directory(fs, dirent, prev, &offset);
+ dir_modified++;
+ continue;
+ } else
+ goto abort_free_dict;
+ }
+ } else {
+ if (dot_state == 0) {
+ memset(&dot, 0, sizeof(dot));
+ dirent = ˙
+ dirent->inode = ino;
+ dirent->rec_len = EXT2_DIR_REC_LEN(1);
+ dirent->name_len = 1 | filetype;
+ dirent->name[0] = '.';
+ } else if (dot_state == 1) {
+ memset(&dotdot, 0, sizeof(dotdot));
+ dirent = &dotdot;
+ dirent->inode =
+ ((struct ext2_dir_entry *)buf)->inode;
+ dirent->rec_len = EXT2_DIR_REC_LEN(2);
+ dirent->name_len = 2 | filetype;
+ dirent->name[0] = '.';
+ dirent->name[1] = '.';
+ } else {
+ fatal_error(ctx, _("Can not continue."));
+ }
+ cd->pctx.dirent = dirent;
+ cd->pctx.num = offset;
}
if (dot_state == 0) {
/*
* Make sure the inode listed is a legal one.
*/
+ name_len = ext2fs_dirent_name_len(dirent);
if (((dirent->inode != EXT2_ROOT_INO) &&
(dirent->inode < EXT2_FIRST_INODE(fs->super))) ||
(dirent->inode > fs->super->s_inodes_count)) {
* clear it.
*/
problem = PR_2_BB_INODE;
- } else if ((dot_state > 1) &&
- ((dirent->name_len & 0xFF) == 1) &&
+ } else if ((dot_state > 1) && (name_len == 1) &&
(dirent->name[0] == '.')) {
/*
* If there's a '.' entry in anything other
* duplicate entry that should be removed.
*/
problem = PR_2_DUP_DOT;
- } else if ((dot_state > 1) &&
- ((dirent->name_len & 0xFF) == 2) &&
+ } else if ((dot_state > 1) && (name_len == 2) &&
(dirent->name[0] == '.') &&
(dirent->name[1] == '.')) {
/*
* directory hasn't been created yet.
*/
problem = PR_2_LINK_ROOT;
- } else if ((dot_state > 1) &&
- (dirent->name_len & 0xFF) == 0) {
+ } else if ((dot_state > 1) && (name_len == 0)) {
/*
* Don't allow zero-length directory names.
*/
#ifdef ENABLE_HTREE
if (dx_db) {
ext2fs_dirhash(dx_dir->hashversion, dirent->name,
- (dirent->name_len & 0xFF),
+ ext2fs_dirent_name_len(dirent),
fs->super->s_hash_seed, &hash, 0);
if (hash < dx_db->min_hash)
dx_db->min_hash = hash;
pctx.ino = ino;
pctx.dirent = dirent;
fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx);
- if (!ctx->dirs_to_hash)
- ext2fs_u32_list_create(&ctx->dirs_to_hash, 50);
- if (ctx->dirs_to_hash)
- ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
+ e2fsck_rehash_dir_later(ctx, ino);
dups_found++;
} else
dict_alloc_insert(&de_dict, dirent, dirent);
prev = dirent;
if (dir_modified)
(void) ext2fs_get_rec_len(fs, dirent, &rec_len);
- offset += rec_len;
+ if (!inline_data_size || dot_state > 1) {
+ offset += rec_len;
+ } else {
+ if (dot_state == 1)
+ offset = 4;
+ }
dot_state++;
- } while (offset < fs->blocksize);
+ } while (is_last_entry(fs, inline_data_size, offset, de_csum_size));
#if 0
printf("\n");
#endif
cd->pctx.dir = cd->pctx.ino;
if ((dx_db->type == DX_DIRBLOCK_ROOT) ||
(dx_db->type == DX_DIRBLOCK_NODE))
- parse_int_node(fs, db, cd, dx_dir, buf);
+ parse_int_node(fs, db, cd, dx_dir, buf, failed_csum);
}
#endif /* ENABLE_HTREE */
- if (offset != fs->blocksize) {
- cd->pctx.num = rec_len - fs->blocksize + offset;
- if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
- dirent->rec_len = cd->pctx.num;
- dir_modified++;
+
+ if (inline_data_size) {
+ if (offset != inline_data_size) {
+ cd->pctx.num = rec_len + offset - inline_data_size;
+ if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
+ dirent->rec_len = cd->pctx.num;
+ dir_modified++;
+ }
+ }
+ } else {
+ if (offset != fs->blocksize - de_csum_size) {
+ cd->pctx.num = rec_len - (fs->blocksize - de_csum_size) +
+ offset;
+ if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
+ dirent->rec_len = cd->pctx.num;
+ dir_modified++;
+ }
}
}
if (dir_modified) {
- cd->pctx.errcode = ext2fs_write_dir_block3(fs, block_nr, buf, 0);
+ /* leaf block with no tail? Rehash dirs later. */
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ is_leaf &&
+ !ext2fs_dirent_has_tail(fs, (struct ext2_dir_entry *)buf))
+ e2fsck_rehash_dir_later(ctx, ino);
+
+write_and_fix:
+ if (e2fsck_dir_will_be_rehashed(ctx, ino))
+ ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ if (inline_data_size) {
+ cd->pctx.errcode =
+ ext2fs_inline_data_set(fs, ino, 0, buf,
+ inline_data_size);
+ } else
+ cd->pctx.errcode = ext2fs_write_dir_block4(fs, block_nr,
+ buf, 0, ino);
+ if (e2fsck_dir_will_be_rehashed(ctx, ino))
+ ctx->fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
if (cd->pctx.errcode) {
if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK,
&cd->pctx))
goto abort_free_dict;
}
ext2fs_mark_changed(fs);
+ } else if (is_leaf && failed_csum && !dir_modified) {
+ /*
+ * If a leaf node that fails csum makes it this far without
+ * alteration, ask the user if the checksum should be fixed.
+ */
+ if (fix_problem(ctx, PR_2_LEAF_NODE_ONLY_CSUM_INVALID,
+ &cd->pctx))
+ goto write_and_fix;
}
dict_free_nodes(&de_dict);
return 0;
if (ext2fs_file_acl_block(fs, &inode) &&
(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
- pctx.errcode = ext2fs_adjust_ea_refcount2(fs,
- ext2fs_file_acl_block(fs, &inode),
- block_buf, -1, &count);
+ pctx.errcode = ext2fs_adjust_ea_refcount3(fs,
+ ext2fs_file_acl_block(fs, &inode),
+ block_buf, -1, &count, ino);
if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
pctx.errcode = 0;
count = 1;
return 1;
}
- pctx->errcode = ext2fs_write_dir_block3(fs, blk, block, 0);
+ pctx->errcode = ext2fs_write_dir_block4(fs, blk, block, 0, db->ino);
ext2fs_free_mem(&block);
if (pctx->errcode) {
pctx->str = "ext2fs_write_dir_block";
return;
}
- pctx.errcode = ext2fs_write_dir_block3(fs, blk, block, 0);
+ pctx.errcode = ext2fs_write_dir_block4(fs, blk, block, 0,
+ EXT2_ROOT_INO);
if (pctx.errcode) {
- pctx.str = "ext2fs_write_dir_block3";
+ pctx.str = "ext2fs_write_dir_block4";
fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
if (retval && !fix)
return 0;
if (!retval) {
- if (ext2fs_test_inode_bitmap2(ctx->inode_dir_map, ino)) {
+ /* Lost+found shouldn't have inline data */
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (fix && retval)
+ return 0;
+
+ if (fix && (inode.i_flags & EXT4_INLINE_DATA_FL)) {
+ if (!fix_problem(ctx, PR_3_LPF_INLINE_DATA, &pctx))
+ return 0;
+ goto unlink;
+ }
+
+ if (ext2fs_check_directory(fs, ino) == 0) {
ctx->lost_and_found = ino;
return ino;
}
if (!fix_problem(ctx, PR_3_LPF_NOTDIR, &pctx))
return 0;
+unlink:
/* OK, unlink the old /lost+found file. */
pctx.errcode = ext2fs_unlink(fs, EXT2_ROOT_INO, name, ino, 0);
if (pctx.errcode) {
return 0;
}
- retval = ext2fs_write_dir_block3(fs, blk, block, 0);
+ retval = ext2fs_write_dir_block4(fs, blk, block, 0, ino);
ext2fs_free_mem(&block);
if (retval) {
pctx.errcode = retval;
errcode_t retval;
struct problem_context pctx;
- if ((dirent->name_len & 0xFF) != 2)
+ if (ext2fs_dirent_name_len(dirent) != 2)
return 0;
if (strncmp(dirent->name, "..", 2))
return 0;
dirent->inode = fp->parent;
if (fp->ctx->fs->super->s_feature_incompat &
EXT2_FEATURE_INCOMPAT_FILETYPE)
- dirent->name_len = (dirent->name_len & 0xFF) |
- (EXT2_FT_DIR << 8);
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_DIR);
else
- dirent->name_len = dirent->name_len & 0xFF;
+ ext2fs_dirent_set_file_type(dirent, EXT2_FT_UNKNOWN);
fp->done++;
return DIRENT_ABORT | DIRENT_CHANGED;
clear_problem_context(&pctx);
pctx.ino = ino;
+ if (e2fsck_dir_will_be_rehashed(ctx, ino))
+ ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
retval = ext2fs_dir_iterate(fs, ino, DIRENT_FLAG_INCLUDE_EMPTY,
0, fix_dotdot_proc, &fp);
+ if (e2fsck_dir_will_be_rehashed(ctx, ino))
+ ctx->fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
if (retval || !fp.done) {
pctx.errcode = retval;
fix_problem(ctx, retval ? PR_3_FIX_PARENT_ERR :
blk64_t last_block;
errcode_t err;
e2fsck_t ctx;
+ ext2_ino_t dir;
};
static int expand_dir_proc(ext2_filsys fs,
return BLOCK_ABORT;
}
es->num--;
- retval = ext2fs_write_dir_block3(fs, new_blk, block, 0);
+ retval = ext2fs_write_dir_block4(fs, new_blk, block, 0,
+ es->dir);
} else {
retval = ext2fs_get_mem(fs->blocksize, &block);
if (retval) {
es.err = 0;
es.newblocks = 0;
es.ctx = ctx;
+ es.dir = dir;
before = ext2fs_free_blocks_count(fs->super);
retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_APPEND,
static void check_inode_bitmaps(e2fsck_t ctx);
static void check_inode_end(e2fsck_t ctx);
static void check_block_end(e2fsck_t ctx);
+static void check_inode_bitmap_checksum(e2fsck_t ctx);
+static void check_block_bitmap_checksum(e2fsck_t ctx);
void e2fsck_pass5(e2fsck_t ctx)
{
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
return;
+ check_inode_bitmap_checksum(ctx);
+ check_block_bitmap_checksum(ctx);
+
ext2fs_free_inode_bitmap(ctx->inode_used_map);
ctx->inode_used_map = 0;
ext2fs_free_inode_bitmap(ctx->inode_dir_map);
print_resource_track(ctx, _("Pass 5"), &rtrack, ctx->fs->io);
}
+static void check_inode_bitmap_checksum(e2fsck_t ctx)
+{
+ struct problem_context pctx;
+ char *buf;
+ dgrp_t i;
+ int nbytes;
+ ext2_ino_t ino_itr;
+ errcode_t retval;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(ctx->fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ /* If bitmap is dirty from being fixed, checksum will be corrected */
+ if (ext2fs_test_ib_dirty(ctx->fs))
+ return;
+
+ nbytes = (size_t)(EXT2_INODES_PER_GROUP(ctx->fs->super) / 8);
+ retval = ext2fs_get_memalign(ctx->fs->blocksize, ctx->fs->blocksize,
+ &buf);
+ if (retval) {
+ com_err(ctx->program_name, 0,
+ _("check_inode_bitmap_checksum: Memory allocation error"));
+ fatal_error(ctx, 0);
+ }
+
+ clear_problem_context(&pctx);
+ for (i = 0; i < ctx->fs->group_desc_count; i++) {
+ if (ext2fs_bg_flags_test(ctx->fs, i, EXT2_BG_INODE_UNINIT))
+ continue;
+
+ ino_itr = 1 + (i * (nbytes << 3));
+ retval = ext2fs_get_inode_bitmap_range2(ctx->fs->inode_map,
+ ino_itr, nbytes << 3,
+ buf);
+ if (retval)
+ break;
+
+ if (ext2fs_inode_bitmap_csum_verify(ctx->fs, i, buf, nbytes))
+ continue;
+ pctx.group = i;
+ if (!fix_problem(ctx, PR_5_INODE_BITMAP_CSUM_INVALID, &pctx))
+ continue;
+
+ /*
+ * Fixing one checksum will rewrite all of them. The bitmap
+ * will be checked against the one we made during pass1 for
+ * discrepancies, and fixed if need be.
+ */
+ ext2fs_mark_ib_dirty(ctx->fs);
+ break;
+ }
+
+ ext2fs_free_mem(&buf);
+}
+
+static void check_block_bitmap_checksum(e2fsck_t ctx)
+{
+ struct problem_context pctx;
+ char *buf;
+ dgrp_t i;
+ int nbytes;
+ blk64_t blk_itr;
+ errcode_t retval;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(ctx->fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ /* If bitmap is dirty from being fixed, checksum will be corrected */
+ if (ext2fs_test_bb_dirty(ctx->fs))
+ return;
+
+ nbytes = (size_t)(EXT2_CLUSTERS_PER_GROUP(ctx->fs->super) / 8);
+ retval = ext2fs_get_memalign(ctx->fs->blocksize, ctx->fs->blocksize,
+ &buf);
+ if (retval) {
+ com_err(ctx->program_name, 0,
+ _("check_block_bitmap_checksum: Memory allocation error"));
+ fatal_error(ctx, 0);
+ }
+
+ clear_problem_context(&pctx);
+ for (i = 0; i < ctx->fs->group_desc_count; i++) {
+ if (ext2fs_bg_flags_test(ctx->fs, i, EXT2_BG_BLOCK_UNINIT))
+ continue;
+
+ blk_itr = EXT2FS_B2C(ctx->fs,
+ ctx->fs->super->s_first_data_block) +
+ ((blk64_t) i * (nbytes << 3));
+ retval = ext2fs_get_block_bitmap_range2(ctx->fs->block_map,
+ blk_itr, nbytes << 3,
+ buf);
+ if (retval)
+ break;
+
+ if (ext2fs_block_bitmap_csum_verify(ctx->fs, i, buf, nbytes))
+ continue;
+ pctx.group = i;
+ if (!fix_problem(ctx, PR_5_BLOCK_BITMAP_CSUM_INVALID, &pctx))
+ continue;
+
+ /*
+ * Fixing one checksum will rewrite all of them. The bitmap
+ * will be checked against the one we made during pass1 for
+ * discrepancies, and fixed if need be.
+ */
+ ext2fs_mark_bb_dirty(ctx->fs);
+ break;
+ }
+
+ ext2fs_free_mem(&buf);
+}
+
static void e2fsck_discard_blocks(e2fsck_t ctx, blk64_t start,
blk64_t count)
{
goto errout;
}
- csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ csum_flag = ext2fs_has_group_desc_csum(fs);
redo_counts:
had_problem = 0;
save_problem = 0;
goto errout;
}
- csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ csum_flag = ext2fs_has_group_desc_csum(fs);
redo_counts:
had_problem = 0;
save_problem = 0;
N_("ext2fs_check_desc: %m\n"),
PROMPT_NONE, 0 },
+ /*
+ * metadata_csum implies uninit_bg; both feature bits cannot
+ * be set simultaneously.
+ */
+ { PR_0_META_AND_GDT_CSUM_SET,
+ N_("@S metadata_csum supersedes uninit_bg; both feature "
+ "bits cannot be set simultaneously."),
+ PROMPT_FIX, PR_PREEN_OK | PR_NO_OK},
+
+ /* Superblock has invalid MMP checksum. */
+ { PR_0_MMP_CSUM_INVALID,
+ N_("@S MMP block checksum does not match MMP block. "),
+ PROMPT_FIX, PR_PREEN_OK | PR_NO_OK},
+
/* 64bit is set but extents is unset. */
{ PR_0_64BIT_WITHOUT_EXTENTS,
N_("@S 64bit filesystems needs extents to access the whole disk. "),
N_("@i %i has zero length extent\n\t(@n logical @b %c, physical @b %b)\n"),
PROMPT_CLEAR, 0 },
+ /* inode checksum does not match inode */
+ { PR_1_INODE_CSUM_INVALID,
+ N_("@i %i checksum does not match @i. "),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* inode passes checks, but checksum does not match inode */
+ { PR_1_INODE_ONLY_CSUM_INVALID,
+ N_("@i %i passes checks, but checksum does not match @i. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Inode extent block checksum does not match extent */
+ { PR_1_EXTENT_CSUM_INVALID,
+ N_("@i %i extent block checksum does not match extent\n\t(logical @b "
+ "%c, @n physical @b %b, len %N)\n"),
+ PROMPT_CLEAR, 0 },
+
+ /*
+ * Inode extent block passes checks, but checksum does not match
+ * extent
+ */
+ { PR_1_EXTENT_ONLY_CSUM_INVALID,
+ N_("@i %i extent block passes checks, but checksum does not match "
+ "extent\n\t(logical @b %c, @n physical @b %b, len %N)\n"),
+ PROMPT_FIX, 0 },
+
+ /* Extended attribute block checksum for inode does not match. */
+ { PR_1_EA_BLOCK_CSUM_INVALID,
+ N_("Extended attribute @a @b %b checksum for @i %i does not "
+ "match. "),
+ PROMPT_CLEAR, 0 },
+
+ /*
+ * Extended attribute block passes checks, but checksum for inode does
+ * not match.
+ */
+ { PR_1_EA_BLOCK_ONLY_CSUM_INVALID,
+ N_("Extended attribute @a @b %b passes checks, but checksum for "
+ "@i %i does not match. "),
+ PROMPT_FIX, 0 },
+
/*
* Interior extent node logical offset doesn't match first node below it
*/
N_("@i %i, end of extent exceeds allowed value\n\t(logical @b %c, physical @b %b, len %N)\n"),
PROMPT_CLEAR, 0 },
+ /* Inode has inline data, but superblock is missing INLINE_DATA feature. */
+ { PR_1_INLINE_DATA_FEATURE,
+ N_("@i %i has inline data, but @S is missing INLINE_DATA feature\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* INLINE_DATA feature is set in a non-inline-data filesystem */
+ { PR_1_INLINE_DATA_SET,
+ N_("@i %i has INLINE_DATA_FL flag on @f without inline data support.\n"),
+ PROMPT_CLEAR, 0 },
/* Pass 1b errors */
N_("Error adjusting refcount for @a @b %b (@i %i): %m\n"),
PROMPT_NONE, 0 },
+ /* Duplicate/bad block range in inode */
+ { PR_1B_DUP_RANGE,
+ " %b--%c",
+ PROMPT_NONE, PR_LATCH_DBLOCK | PR_PREEN_NOHDR },
+
/* Pass 1C: Scan directories for inodes with multiply-claimed blocks. */
{ PR_1C_PASS_HEADER,
N_("Pass 1C: Scanning directories for @is with @m @bs\n"),
N_("i_file_acl_hi @F %N, @s zero.\n"),
PROMPT_CLEAR, PR_PREEN_OK },
+ /* htree root node fails checksum */
+ { PR_2_HTREE_ROOT_CSUM_INVALID,
+ N_("@p @h %d: root node fails checksum\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* htree internal node fails checksum */
+ { PR_2_HTREE_NODE_CSUM_INVALID,
+ N_("@p @h %d: internal node fails checksum\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* leaf node fails checksum */
+ { PR_2_LEAF_NODE_CSUM_INVALID,
+ N_("@d @i %i, %B, offset %N: @d fails checksum\n"),
+ PROMPT_SALVAGE, PR_PREEN_OK },
+
+ /* leaf node has no checksum */
+ { PR_2_LEAF_NODE_MISSING_CSUM,
+ N_("@d @i %i, %B, offset %N: @d has no checksum\n"),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* leaf node passes checks but fails checksum */
+ { PR_2_LEAF_NODE_ONLY_CSUM_INVALID,
+ N_("@d @i %i, %B, offset %N: @d passes checks but fails checksum\n"),
+ PROMPT_FIX, PR_PREEN_OK },
+
/* Pass 3 errors */
/* Pass 3: Checking directory connectivity */
N_("/@l is not a @d (ino=%i)\n"),
PROMPT_UNLINK, 0 },
+ /* Lost+found has inline data */
+ { PR_3_LPF_INLINE_DATA,
+ N_("/@l has inline data\n"),
+ PROMPT_CLEAR, 0 },
+
/* Pass 3A Directory Optimization */
/* Pass 3A: Optimizing directories */
N_("@g %g @i(s) in use but @g is marked INODE_UNINIT\n"),
PROMPT_FIX, PR_PREEN_OK },
+ /* Group N inode bitmap does not match checksum */
+ { PR_5_INODE_BITMAP_CSUM_INVALID,
+ N_("@g %g @i bitmap does not match checksum\n"),
+ PROMPT_FIX, PR_LATCH_IBITMAP | PR_PREEN_OK },
+
+ /* Group N block bitmap does not match checksum */
+ { PR_5_BLOCK_BITMAP_CSUM_INVALID,
+ N_("@g %g @b bitmap does not match checksum\n"),
+ PROMPT_FIX, PR_LATCH_BBITMAP | PR_PREEN_OK },
+
/* Post-Pass 5 errors */
/* Recreate journal if E2F_FLAG_JOURNAL_INODE flag is set */
/* 64bit is set but extents are not set. */
#define PR_0_64BIT_WITHOUT_EXTENTS 0x000048
+/*
+ * metadata_csum supersedes uninit_bg; both feature bits cannot be set
+ * simultaneously.
+ */
+#define PR_0_META_AND_GDT_CSUM_SET 0x000046
+
+/* Superblock has invalid MMP checksum. */
+#define PR_0_MMP_CSUM_INVALID 0x000047
+
+
/*
* Pass 1 errors
*/
/* Extent has zero length */
#define PR_1_EXTENT_LENGTH_ZERO 0x010066
+/* inode checksum does not match inode */
+#define PR_1_INODE_CSUM_INVALID 0x010067
+
+/* inode passes checks, but checksum does not match inode */
+#define PR_1_INODE_ONLY_CSUM_INVALID 0x010068
+
+/* extent block checksum does not match extent block */
+#define PR_1_EXTENT_CSUM_INVALID 0x010069
+
+/* extent block passes checks, but checksum does not match extent block */
+#define PR_1_EXTENT_ONLY_CSUM_INVALID 0x01006A
+
+/* ea block checksum invalid */
+#define PR_1_EA_BLOCK_CSUM_INVALID 0x01006B
+
+/* ea block passes checks, but checksum invalid */
+#define PR_1_EA_BLOCK_ONLY_CSUM_INVALID 0x01006C
+
/* Index start doesn't match start of next extent down */
#define PR_1_EXTENT_INDEX_START_INVALID 0x01006D
#define PR_1_EXTENT_END_OUT_OF_BOUNDS 0x01006E
+
+/* Inode has inline data, but superblock is missing INLINE_DATA feature. */
+#define PR_1_INLINE_DATA_FEATURE 0x01006F
+
+/* INLINE_DATA feature is set in a non-inline-data filesystem */
+#define PR_1_INLINE_DATA_SET 0x010070
+
/*
* Pass 1b errors
*/
/* Error adjusting EA refcount */
#define PR_1B_ADJ_EA_REFCOUNT 0x011007
+/* Duplicate/bad block range in inode */
+#define PR_1B_DUP_RANGE 0x011008
+
/* Pass 1C: Scan directories for inodes with dup blocks. */
#define PR_1C_PASS_HEADER 0x012000
/* i_file_acl_hi should be zero */
#define PR_2_I_FILE_ACL_HI_ZERO 0x020048
+/* htree root node fails checksum */
+#define PR_2_HTREE_ROOT_CSUM_INVALID 0x020049
+
+/* htree node fails checksum */
+#define PR_2_HTREE_NODE_CSUM_INVALID 0x02004A
+
+/* dir leaf node fails checksum */
+#define PR_2_LEAF_NODE_CSUM_INVALID 0x02004B
+
+/* no space in leaf for checksum */
+#define PR_2_LEAF_NODE_MISSING_CSUM 0x02004C
+
+/* dir leaf node passes checks, but fails checksum */
+#define PR_2_LEAF_NODE_ONLY_CSUM_INVALID 0x02004D
+
/*
* Pass 3 errors
*/
/* Lost+found is not a directory */
#define PR_3_LPF_NOTDIR 0x030017
+/* Lost+found has inline data */
+#define PR_3_LPF_INLINE_DATA 0x030018
+
/*
* Pass 3a --- rehashing diretories
*/
/* Inode in use but group is marked INODE_UNINIT */
#define PR_5_INODE_UNINIT 0x050019
+/* Inode bitmap checksum does not match */
+#define PR_5_INODE_BITMAP_CSUM_INVALID 0x05001A
+
+/* Block bitmap checksum does not match */
+#define PR_5_BLOCK_BITMAP_CSUM_INVALID 0x05001B
+
/*
* Post-Pass 5 errors
*/
return 0;
}
+static int jbd2_descr_block_csum_verify(journal_t *j,
+ void *buf)
+{
+ struct journal_block_tail *tail;
+ __u32 provided, calculated;
+
+ if (!JFS_HAS_INCOMPAT_FEATURE(j, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ tail = (struct journal_block_tail *)((char *)buf + j->j_blocksize -
+ sizeof(struct journal_block_tail));
+ provided = tail->t_checksum;
+ tail->t_checksum = 0;
+ calculated = ext2fs_crc32c_le(~0, j->j_superblock->s_uuid,
+ sizeof(j->j_superblock->s_uuid));
+ calculated = ext2fs_crc32c_le(calculated, buf, j->j_blocksize);
+ tail->t_checksum = provided;
+
+ provided = ext2fs_be32_to_cpu(provided);
+ return provided == calculated;
+}
/*
* Count the number of in-use tags in a journal descriptor block.
int nr = 0, size = journal->j_blocksize;
int tag_bytes = journal_tag_bytes(journal);
+ if (JFS_HAS_INCOMPAT_FEATURE(journal, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ size -= sizeof(struct journal_block_tail);
+
tagp = &bh->b_data[sizeof(journal_header_t)];
while ((tagp - bh->b_data + tag_bytes) <= size) {
nr++;
tagp += tag_bytes;
- if (!(tag->t_flags & cpu_to_be32(JFS_FLAG_SAME_UUID)))
+ if (!(tag->t_flags & cpu_to_be16(JFS_FLAG_SAME_UUID)))
tagp += 16;
- if (tag->t_flags & cpu_to_be32(JFS_FLAG_LAST_TAG))
+ if (tag->t_flags & cpu_to_be16(JFS_FLAG_LAST_TAG))
break;
}
num_blks = count_tags(journal, bh);
/* Calculate checksum of the descriptor block. */
- *crc32_sum = crc32_be(*crc32_sum, (void *)bh->b_data, bh->b_size);
+ *crc32_sum = ext2fs_crc32_be(*crc32_sum, (void *)bh->b_data,
+ bh->b_size);
for (i = 0; i < num_blks; i++) {
io_block = (*next_log_block)++;
"%llu in log\n", err, io_block);
return 1;
} else {
- *crc32_sum = crc32_be(*crc32_sum, (void *)obh->b_data,
- obh->b_size);
+ *crc32_sum = ext2fs_crc32_be(*crc32_sum,
+ (void *)obh->b_data,
+ obh->b_size);
}
brelse(obh);
}
return 0;
}
+static int jbd2_commit_block_csum_verify(journal_t *j, void *buf)
+{
+ struct commit_header *h;
+ __u32 provided, calculated;
+
+ if (!JFS_HAS_INCOMPAT_FEATURE(j, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ h = buf;
+ provided = h->h_chksum[0];
+ h->h_chksum[0] = 0;
+ calculated = ext2fs_crc32c_le(~0, j->j_superblock->s_uuid,
+ sizeof(j->j_superblock->s_uuid));
+ calculated = ext2fs_crc32c_le(calculated, buf, j->j_blocksize);
+ h->h_chksum[0] = provided;
+
+ provided = ext2fs_be32_to_cpu(provided);
+ return provided == calculated;
+}
+
+static int jbd2_block_tag_csum_verify(journal_t *j, journal_block_tag_t *tag,
+ void *buf, __u32 sequence)
+{
+ __u32 calculated;
+ __u16 provided, crc;
+
+ if (!JFS_HAS_INCOMPAT_FEATURE(j, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ sequence = ext2fs_cpu_to_be32(sequence);
+ calculated = ext2fs_crc32c_le(~0, j->j_superblock->s_uuid,
+ sizeof(j->j_superblock->s_uuid));
+ calculated = ext2fs_crc32c_le(calculated, (__u8 *)&sequence,
+ sizeof(sequence));
+ calculated = ext2fs_crc32c_le(calculated, buf, j->j_blocksize) & 0xffff;
+ crc = calculated & 0xFFFF;
+ provided = ext2fs_be16_to_cpu(tag->t_checksum);
+
+ return provided == crc;
+}
+
static int do_one_pass(journal_t *journal,
struct recovery_info *info, enum passtype pass)
{
int blocktype;
int tag_bytes = journal_tag_bytes(journal);
__u32 crc32_sum = ~0; /* Transactional Checksums */
+ int descr_csum_size = 0;
/*
* First thing is to establish what we expect to find in the log
switch(blocktype) {
case JFS_DESCRIPTOR_BLOCK:
+ /* Verify checksum first */
+ if (JFS_HAS_INCOMPAT_FEATURE(journal,
+ JFS_FEATURE_INCOMPAT_CSUM_V2))
+ descr_csum_size =
+ sizeof(struct journal_block_tail);
+ if (descr_csum_size > 0 &&
+ !jbd2_descr_block_csum_verify(journal,
+ bh->b_data)) {
+ err = -EIO;
+ goto failed;
+ }
+
/* If it is a valid descriptor block, replay it
* in pass REPLAY; if journal_checksums enabled, then
* calculate checksums in PASS_SCAN, otherwise,
tagp = &bh->b_data[sizeof(journal_header_t)];
while ((tagp - bh->b_data + tag_bytes)
- <= journal->j_blocksize) {
+ <= journal->j_blocksize - descr_csum_size) {
unsigned long long io_block;
tag = (journal_block_tag_t *) tagp;
- flags = be32_to_cpu(tag->t_flags);
+ flags = be16_to_cpu(tag->t_flags);
io_block = next_log_block++;
wrap(journal, next_log_block);
goto skip_write;
}
+ /* Look for block corruption */
+ if (!jbd2_block_tag_csum_verify(
+ journal, tag, obh->b_data,
+ be32_to_cpu(tmp->h_sequence))) {
+ brelse(obh);
+ success = -EIO;
+ printk(KERN_ERR "JBD: Invalid "
+ "checksum recovering "
+ "block %lld in log\n",
+ blocknr);
+ continue;
+ }
+
/* Find a buffer for the new
* data being restored */
nbh = __getblk(journal->j_fs_dev,
}
crc32_sum = ~0;
}
+ if (pass == PASS_SCAN &&
+ !jbd2_commit_block_csum_verify(journal,
+ bh->b_data)) {
+ info->end_transaction = next_commit_ID;
+
+ if (!JFS_HAS_INCOMPAT_FEATURE(journal,
+ JFS_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
+ journal->j_failed_commit =
+ next_commit_ID;
+ brelse(bh);
+ break;
+ }
+ }
brelse(bh);
next_commit_ID++;
continue;
return err;
}
+static int jbd2_revoke_block_csum_verify(journal_t *j,
+ void *buf)
+{
+ struct journal_revoke_tail *tail;
+ __u32 provided, calculated;
+
+ if (!JFS_HAS_INCOMPAT_FEATURE(j, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ return 1;
+
+ tail = (struct journal_revoke_tail *)((char *)buf + j->j_blocksize -
+ sizeof(struct journal_revoke_tail));
+ provided = tail->r_checksum;
+ tail->r_checksum = 0;
+ calculated = ext2fs_crc32c_le(~0, j->j_superblock->s_uuid,
+ sizeof(j->j_superblock->s_uuid));
+ calculated = ext2fs_crc32c_le(calculated, buf, j->j_blocksize);
+ tail->r_checksum = provided;
+
+ provided = ext2fs_be32_to_cpu(provided);
+ return provided == calculated;
+}
/* Scan a revoke record, marking all blocks mentioned as revoked. */
offset = sizeof(journal_revoke_header_t);
max = be32_to_cpu(header->r_count);
+ if (!jbd2_revoke_block_csum_verify(journal, header))
+ return -EINVAL;
+
if (JFS_HAS_INCOMPAT_FEATURE(journal, JFS_FEATURE_INCOMPAT_64BIT))
record_len = 8;
break;
}
}
+ if (r)
+ region_free(r);
}
#endif /* TEST_PROGRAM */
#include "e2fsck.h"
#include "problem.h"
+/* Schedule a dir to be rebuilt during pass 3A. */
+void e2fsck_rehash_dir_later(e2fsck_t ctx, ext2_ino_t ino)
+{
+ if (!ctx->dirs_to_hash)
+ ext2fs_u32_list_create(&ctx->dirs_to_hash, 50);
+ if (ctx->dirs_to_hash)
+ ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
+}
+
+/* Ask if a dir will be rebuilt during pass 3A. */
+int e2fsck_dir_will_be_rehashed(e2fsck_t ctx, ext2_ino_t ino)
+{
+ if (ctx->options & E2F_OPT_COMPRESS_DIRS)
+ return 1;
+ if (!ctx->dirs_to_hash)
+ return 0;
+ return ext2fs_u32_list_test(ctx->dirs_to_hash, ino);
+}
+
struct fill_dir_struct {
char *buf;
struct ext2_inode *inode;
unsigned int dir_size;
int compress;
ino_t parent;
+ ext2_ino_t dir;
};
struct hash_entry {
struct hash_entry *new_array, *ent;
struct ext2_dir_entry *dirent;
char *dir;
- unsigned int offset, dir_offset, rec_len;
+ unsigned int offset, dir_offset, rec_len, name_len;
int hash_alg;
if (blockcnt < 0)
dirent = (struct ext2_dir_entry *) dir;
(void) ext2fs_set_rec_len(fs, fs->blocksize, dirent);
} else {
- fd->err = ext2fs_read_dir_block3(fs, *block_nr, dir, 0);
+ fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ fd->err = ext2fs_read_dir_block4(fs, *block_nr, dir, 0,
+ fd->dir);
+ fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
if (fd->err)
return BLOCK_ABORT;
}
while (dir_offset < fs->blocksize) {
dirent = (struct ext2_dir_entry *) (dir + dir_offset);
(void) ext2fs_get_rec_len(fs, dirent, &rec_len);
+ name_len = ext2fs_dirent_name_len(dirent);
if (((dir_offset + rec_len) > fs->blocksize) ||
(rec_len < 8) ||
((rec_len % 4) != 0) ||
- (((dirent->name_len & 0xFF)+8U) > rec_len)) {
+ (name_len + 8 > rec_len)) {
fd->err = EXT2_ET_DIR_CORRUPTED;
return BLOCK_ABORT;
}
dir_offset += rec_len;
if (dirent->inode == 0)
continue;
- if (!fd->compress && ((dirent->name_len&0xFF) == 1) &&
+ if (!fd->compress && (name_len == 1) &&
(dirent->name[0] == '.'))
continue;
- if (!fd->compress && ((dirent->name_len&0xFF) == 2) &&
+ if (!fd->compress && (name_len == 2) &&
(dirent->name[0] == '.') && (dirent->name[1] == '.')) {
fd->parent = dirent->inode;
continue;
}
ent = fd->harray + fd->num_array++;
ent->dir = dirent;
- fd->dir_size += EXT2_DIR_REC_LEN(dirent->name_len & 0xFF);
+ fd->dir_size += EXT2_DIR_REC_LEN(name_len);
ent->ino = dirent->inode;
if (fd->compress)
ent->hash = ent->minor_hash = 0;
else {
fd->err = ext2fs_dirhash(hash_alg, dirent->name,
- dirent->name_len & 0xFF,
+ name_len,
fs->super->s_hash_seed,
&ent->hash, &ent->minor_hash);
if (fd->err)
{
const struct hash_entry *he_a = (const struct hash_entry *) a;
const struct hash_entry *he_b = (const struct hash_entry *) b;
+ unsigned int he_a_len, he_b_len;
int ret;
int min_len;
- min_len = he_a->dir->name_len;
- if (min_len > he_b->dir->name_len)
- min_len = he_b->dir->name_len;
+ he_a_len = ext2fs_dirent_name_len(he_a->dir);
+ he_b_len = ext2fs_dirent_name_len(he_b->dir);
+ min_len = he_a_len;
+ if (min_len > he_b_len)
+ min_len = he_b_len;
ret = strncmp(he_a->dir->name, he_b->dir->name, min_len);
if (ret == 0) {
- if (he_a->dir->name_len > he_b->dir->name_len)
+ if (he_a_len > he_b_len)
ret = 1;
- else if (he_a->dir->name_len < he_b->dir->name_len)
+ else if (he_a_len < he_b_len)
ret = -1;
else
ret = he_b->dir->inode - he_a->dir->inode;
* expand the length of the filename beyond the padding available in
* the directory entry.
*/
-static void mutate_name(char *str, __u16 *len)
+static void mutate_name(char *str, unsigned int *len)
{
int i;
- __u16 l = *len & 0xFF, h = *len & 0xff00;
+ unsigned int l = *len;
/*
* First check to see if it looks the name has been mutated
l = (l+3) & ~3;
str[l-2] = '~';
str[l-1] = '0';
- *len = l | h;
+ *len = l;
return;
}
for (i = l-1; i >= 0; i--) {
int i, j;
int fixed = 0;
char new_name[256];
- __u16 new_len;
+ unsigned int new_len;
int hash_alg;
clear_problem_context(&pctx);
ent = fd->harray + i;
prev = ent - 1;
if (!ent->dir->inode ||
- ((ent->dir->name_len & 0xFF) !=
- (prev->dir->name_len & 0xFF)) ||
- (strncmp(ent->dir->name, prev->dir->name,
- ent->dir->name_len & 0xFF)))
+ (ext2fs_dirent_name_len(ent->dir) !=
+ ext2fs_dirent_name_len(prev->dir)) ||
+ strncmp(ent->dir->name, prev->dir->name,
+ ext2fs_dirent_name_len(ent->dir)))
continue;
pctx.dirent = ent->dir;
if ((ent->dir->inode == prev->dir->inode) &&
fixed++;
continue;
}
- memcpy(new_name, ent->dir->name, ent->dir->name_len & 0xFF);
- new_len = ent->dir->name_len;
+ new_len = ext2fs_dirent_name_len(ent->dir);
+ memcpy(new_name, ent->dir->name, new_len);
mutate_name(new_name, &new_len);
for (j=0; j < fd->num_array; j++) {
if ((i==j) ||
- ((new_len & 0xFF) !=
- (fd->harray[j].dir->name_len & 0xFF)) ||
- (strncmp(new_name, fd->harray[j].dir->name,
- new_len & 0xFF)))
+ (new_len !=
+ ext2fs_dirent_name_len(fd->harray[j].dir)) ||
+ strncmp(new_name, fd->harray[j].dir->name, new_len))
continue;
mutate_name(new_name, &new_len);
j = -1;
}
- new_name[new_len & 0xFF] = 0;
+ new_name[new_len] = 0;
pctx.str = new_name;
if (fix_problem(ctx, PR_2_NON_UNIQUE_FILE, &pctx)) {
- memcpy(ent->dir->name, new_name, new_len & 0xFF);
- ent->dir->name_len = new_len;
- ext2fs_dirhash(hash_alg, ent->dir->name,
- ent->dir->name_len & 0xFF,
+ memcpy(ent->dir->name, new_name, new_len);
+ ext2fs_dirent_set_name_len(ent->dir, new_len);
+ ext2fs_dirhash(hash_alg, ent->dir->name, new_len,
fs->super->s_hash_seed,
&ent->hash, &ent->minor_hash);
fixed++;
unsigned int rec_len, prev_rec_len, left, slack, offset;
int i;
ext2_dirhash_t prev_hash;
+ int csum_size = 0;
+ struct ext2_dir_entry_tail *t;
if (ctx->htree_slack_percentage == 255) {
profile_get_uint(ctx->profile, "options",
ctx->htree_slack_percentage = 20;
}
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dir_entry_tail);
+
outdir->max = 0;
retval = alloc_size_dir(fs, outdir,
(fd->dir_size / fs->blocksize) + 2);
dirent = (struct ext2_dir_entry *) block_start;
prev_rec_len = 0;
rec_len = 0;
- left = fs->blocksize;
+ left = fs->blocksize - csum_size;
slack = fd->compress ? 12 :
- (fs->blocksize * ctx->htree_slack_percentage)/100;
+ ((fs->blocksize - csum_size) * ctx->htree_slack_percentage)/100;
if (slack < 12)
slack = 12;
for (i = 0; i < fd->num_array; i++) {
ent = fd->harray + i;
if (ent->dir->inode == 0)
continue;
- rec_len = EXT2_DIR_REC_LEN(ent->dir->name_len & 0xFF);
+ rec_len = EXT2_DIR_REC_LEN(ext2fs_dirent_name_len(ent->dir));
if (rec_len > left) {
if (left) {
left += prev_rec_len;
if (retval)
return retval;
}
+ if (csum_size) {
+ t = EXT2_DIRENT_TAIL(block_start,
+ fs->blocksize);
+ ext2fs_initialize_dirent_tail(fs, t);
+ }
if ((retval = get_next_block(fs, outdir,
&block_start)))
return retval;
offset = 0;
}
- left = fs->blocksize - offset;
+ left = (fs->blocksize - csum_size) - offset;
dirent = (struct ext2_dir_entry *) (block_start + offset);
if (offset == 0) {
if (ent->hash == prev_hash)
outdir->hashes[outdir->num-1] = ent->hash;
}
dirent->inode = ent->dir->inode;
- dirent->name_len = ent->dir->name_len;
+ ext2fs_dirent_set_name_len(dirent,
+ ext2fs_dirent_name_len(ent->dir));
+ ext2fs_dirent_set_file_type(dirent,
+ ext2fs_dirent_file_type(ent->dir));
retval = ext2fs_set_rec_len(fs, rec_len, dirent);
if (retval)
return retval;
prev_rec_len = rec_len;
- memcpy(dirent->name, ent->dir->name, dirent->name_len & 0xFF);
+ memcpy(dirent->name, ent->dir->name,
+ ext2fs_dirent_name_len(dirent));
offset += rec_len;
left -= rec_len;
if (left < slack) {
}
if (left)
retval = ext2fs_set_rec_len(fs, rec_len + left, dirent);
+ if (csum_size) {
+ t = EXT2_DIRENT_TAIL(block_start, fs->blocksize);
+ ext2fs_initialize_dirent_tail(fs, t);
+ }
return retval;
}
struct ext2_dx_root_info *root;
struct ext2_dx_countlimit *limits;
int filetype = 0;
+ int csum_size = 0;
if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_FILETYPE)
- filetype = EXT2_FT_DIR << 8;
+ filetype = EXT2_FT_DIR;
memset(buf, 0, fs->blocksize);
dir = (struct ext2_dir_entry *) buf;
dir->inode = ino;
dir->name[0] = '.';
- dir->name_len = 1 | filetype;
+ ext2fs_dirent_set_name_len(dir, 1);
+ ext2fs_dirent_set_file_type(dir, filetype);
dir->rec_len = 12;
dir = (struct ext2_dir_entry *) (buf + 12);
dir->inode = parent;
dir->name[0] = '.';
dir->name[1] = '.';
- dir->name_len = 2 | filetype;
+ ext2fs_dirent_set_name_len(dir, 2);
+ ext2fs_dirent_set_file_type(dir, filetype);
dir->rec_len = fs->blocksize - 12;
root = (struct ext2_dx_root_info *) (buf+24);
root->indirect_levels = 0;
root->unused_flags = 0;
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dx_tail);
+
limits = (struct ext2_dx_countlimit *) (buf+32);
- limits->limit = (fs->blocksize - 32) / sizeof(struct ext2_dx_entry);
+ limits->limit = (fs->blocksize - (32 + csum_size)) /
+ sizeof(struct ext2_dx_entry);
limits->count = 0;
return root;
{
struct ext2_dir_entry *dir;
struct ext2_dx_countlimit *limits;
+ int csum_size = 0;
memset(buf, 0, fs->blocksize);
dir = (struct ext2_dir_entry *) buf;
dir->inode = 0;
(void) ext2fs_set_rec_len(fs, fs->blocksize, dir);
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dx_tail);
+
limits = (struct ext2_dx_countlimit *) (buf+8);
- limits->limit = (fs->blocksize - 8) / sizeof(struct ext2_dx_entry);
+ limits->limit = (fs->blocksize - (8 + csum_size)) /
+ sizeof(struct ext2_dx_entry);
limits->count = 0;
return (struct ext2_dx_entry *) limits;
errcode_t err;
e2fsck_t ctx;
blk64_t cleared;
+ ext2_ino_t dir;
};
/*
{
struct write_dir_struct *wd = (struct write_dir_struct *) priv_data;
blk64_t blk;
- char *dir;
+ char *dir, *buf = 0;
if (*block_nr == 0)
return 0;
- if (blockcnt >= wd->outdir->num) {
+ if (blockcnt < 0)
+ return 0;
+ if (blockcnt < wd->outdir->num)
+ dir = wd->outdir->buf + (blockcnt * fs->blocksize);
+ else if (wd->ctx->lost_and_found == wd->dir) {
+ /* Don't release any extra directory blocks for lost+found */
+ wd->err = ext2fs_new_dir_block(fs, 0, 0, &buf);
+ if (wd->err)
+ return BLOCK_ABORT;
+ dir = buf;
+ wd->outdir->num++;
+ } else {
+ /* We don't need this block, so release it */
e2fsck_read_bitmaps(wd->ctx);
blk = *block_nr;
/*
*block_nr = 0;
return BLOCK_CHANGED;
}
- if (blockcnt < 0)
- return 0;
- dir = wd->outdir->buf + (blockcnt * fs->blocksize);
- wd->err = ext2fs_write_dir_block3(fs, *block_nr, dir, 0);
+ wd->err = ext2fs_write_dir_block4(fs, *block_nr, dir, 0, wd->dir);
+ if (buf)
+ ext2fs_free_mem(&buf);
+
if (wd->err)
return BLOCK_ABORT;
return 0;
wd.err = 0;
wd.ctx = ctx;
wd.cleared = 0;
+ wd.dir = ino;
retval = ext2fs_block_iterate3(fs, ino, 0, 0,
write_dir_block, &wd);
outdir.hashes = 0;
e2fsck_read_inode(ctx, ino, &inode, "rehash_dir");
+ if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA) &&
+ (inode.i_flags & EXT4_INLINE_DATA_FL))
+ return 0;
+
retval = ENOMEM;
fd.harray = 0;
dir_buf = malloc(inode.i_size);
fd.err = 0;
fd.dir_size = 0;
fd.compress = 0;
+ fd.dir = ino;
if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
(inode.i_size / fs->blocksize) < 2)
fd.compress = 1;
if (!ctx->dirs_to_hash && !all_dirs)
return;
- e2fsck_get_lost_and_found(ctx, 0);
+ (void) e2fsck_get_lost_and_found(ctx, 0);
clear_problem_context(&pctx);
if (!ext2fs_u32_list_iterate(iter, &ino))
break;
}
- if (ino == ctx->lost_and_found)
- continue;
+
pctx.dir = ino;
if (first) {
fix_problem(ctx, PR_3A_PASS_HEADER, &pctx);
sigaction(SIGILL, &sa, 0);
sigaction(SIGBUS, &sa, 0);
sigaction(SIGSEGV, &sa, 0);
+ sigaction(SIGABRT, &sa, 0);
}
ext2fs_iblk_sub_blocks(fs, inode, pb.truncated_blocks);
if (ext2fs_file_acl_block(fs, inode)) {
- retval = ext2fs_adjust_ea_refcount2(fs,
- ext2fs_file_acl_block(fs, inode),
- block_buf, -1, &count);
+ retval = ext2fs_adjust_ea_refcount3(fs,
+ ext2fs_file_acl_block(fs, inode),
+ block_buf, -1, &count, ino);
if (retval == EXT2_ET_BAD_EA_BLOCK_NUM) {
retval = 0;
count = 1;
}
}
+ /* Are metadata_csum and uninit_bg both set? */
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM) &&
+ fix_problem(ctx, PR_0_META_AND_GDT_CSUM_SET, &pctx)) {
+ fs->super->s_feature_ro_compat &=
+ ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
+ ext2fs_mark_super_dirty(fs);
+ for (i = 0; i < fs->group_desc_count; i++)
+ ext2fs_group_desc_csum_set(fs, i);
+ }
+
/* Is 64bit set and extents unset? */
if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
EXT4_FEATURE_INCOMPAT_64BIT) &&
first_block = sb->s_first_data_block;
last_block = ext2fs_blocks_count(sb)-1;
- csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ csum_flag = ext2fs_has_group_desc_csum(fs);
for (i = 0; i < fs->group_desc_count; i++) {
pctx.group = i;
(!csum_flag || !(ctx->mount_flags & EXT2_MF_MOUNTED))) {
if (fix_problem(ctx, PR_0_ADD_UUID, &pctx)) {
uuid_generate(sb->s_uuid);
+ ext2fs_init_csum_seed(fs);
fs->flags |= EXT2_FLAG_DIRTY;
fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
}
ext2fs_mmp_clear(fs);
retval = 0;
}
+ } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
+ if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
+ ext2fs_mmp_clear(fs);
+ retval = 0;
+ }
}
return retval;
}
if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
!(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
((retval == EXT2_ET_BAD_MAGIC) ||
+ (retval == EXT2_ET_SB_CSUM_INVALID) ||
(retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
((retval == 0) && (retval2 = ext2fs_check_desc(fs))))) {
if (retval) {
}
if ((run_result & E2F_FLAG_CANCEL) == 0 &&
- sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM &&
+ ext2fs_has_group_desc_csum(ctx->fs) &&
!(ctx->options & E2F_OPT_READONLY)) {
retval = ext2fs_set_gdt_csum(ctx->fs);
if (retval) {
old_op = ehandler_operation(_("reading inode and block bitmaps"));
e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE, "fs_bitmaps",
&save_type);
+ ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
retval = ext2fs_read_bitmaps(fs);
+ ctx->fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
fs->default_bitmap_type = save_type;
ehandler_operation(old_op);
if (retval) {
.c.o:
$(CC) -c $(ALL_CFLAGS) $< -o $@
$(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(CPPCHECK_CMD) $(CPPFLAGS) $<
.SUFFIXES: .sgml .ps .pdf .html
@ifGNUmake@ CHECK=sparse
@ifGNUmake@ CHECK_OPTS=-Wsparse-all -Wno-transparent-union -Wno-return-void -Wno-undef -Wno-non-pointer-null
+@ifGNUmake@ CPPCHECK=cppcheck
+@ifGNUmake@ CPPCHECK_OPTS=--force --enable=all --quiet --check-config
@ifGNUmake@ ifeq ("$(C)", "2")
@ifGNUmake@ CHECK_CMD=$(CHECK) $(CHECK_OPTS) -Wbitwise -D__CHECK_ENDIAN__
+@ifGNUmake@ CPPCHECK_CMD=$(CPPCHECK) $(CPPCHECK_OPTS)
@ifGNUmake@ else
@ifGNUmake@ ifeq ("$(C)", "1")
@ifGNUmake@ CHECK_CMD=$(CHECK) $(CHECK_OPTS)
+@ifGNUmake@ CPPCHECK_CMD=$(CPPCHECK) $(CPPCHECK_OPTS)
@ifGNUmake@ else
@ifGNUmake@ CHECK_CMD=@true
+@ifGNUmake@ CPPCHECK_CMD=@true
@ifGNUmake@ endif
@ifGNUmake@ endif
@ifNotGNUmake@ CHECK_CMD=@true
+@ifNotGNUmake@ CPPCHECK_CMD=@true
l = @INTL_LIBTOOL_SUFFIX_PREFIX@
$(E) " CC $<"
$(Q) $(COMPILE) $<
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
.y.c:
$(YACC) $(YFLAGS) --output $@ $<
$(E) " CC $<"
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
@CHECKER_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -checker -g -o checker/$*.o -c $<
@ELF_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -fPIC -o elfshared/$*.o -c $<
#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
#define EXT4_FEATURE_RO_COMPAT_QUOTA 0x0100
+#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
/* for s_feature_incompat */
#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
/* Define to 1 if debugging ext3/4 journal code */
#undef CONFIG_JBD_DEBUG
+/* Define to 1 to enable mmp support */
+#undef CONFIG_MMP
+
/* Define to 1 to enable quota support */
#undef CONFIG_QUOTA
/* Define to 1 to disable use of backtrace */
#undef DISABLE_BACKTRACE
+/* Define to 1 to enable bitmap stats. */
+#undef ENABLE_BMAP_STATS
+
+/* Define to 1 to enable bitmap stats. */
+#undef ENABLE_BMAP_STATS_OPS
+
/* Define to 1 if ext2 compression enabled */
#undef ENABLE_COMPRESSION
$(E) " CC $<"
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
@CHECKER_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -checker -g -o checker/$*.o -c $<
@ELF_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -fPIC -o elfshared/$*.o -c $<
"dirdata"},
{ E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_LARGEDIR,
"large_dir"},
- { E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_INLINEDATA,
+ { E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_INLINE_DATA,
"inline_data"},
{ 0, 0, 0 },
};
"journal_64bit" },
{ E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_ASYNC_COMMIT,
"journal_async_commit" },
+ { E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_CSUM_V2,
+ "journal_checksum_v2" },
{ 0, 0, 0 },
};
#define EXT2_GOOD_OLD_REV 0
#endif
+static const char *checksum_type(__u8 type)
+{
+ switch (type) {
+ case EXT2_CRC32C_CHKSUM:
+ return "crc32c";
+ default:
+ return "unknown";
+ }
+}
+
void list_super2(struct ext2_super_block * sb, FILE *f)
{
int inode_blocks_per_group;
fprintf(f, "Group quota inode: %u\n",
sb->s_grp_quota_inum);
- if (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
+ if (sb->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
+ fprintf(f, "Checksum type: %s\n",
+ checksum_type(sb->s_checksum_type));
fprintf(f, "Checksum: 0x%08x\n",
sb->s_checksum);
+ }
}
void list_super (struct ext2_super_block * s)
{ EXT4_EXTENTS_FL, "e", "Extents" },
{ EXT4_HUGE_FILE_FL, "h", "Huge_file" },
{ FS_NOCOW_FL, "C", "No_COW" },
+ { EXT4_INLINE_DATA_FL, "N", "Inline_Data" },
{ 0, NULL, NULL }
};
$(E) " CC $<"
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
@CHECKER_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -checker -g -o checker/$*.o -c $<
@ELF_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -fPIC -o elfshared/$*.o -c $<
freefs.o \
gen_bitmap.o \
gen_bitmap64.o \
+ get_num_dirs.o \
get_pathname.o \
getsize.o \
getsectsize.o \
ind_block.o \
initialize.o \
inline.o \
+ inline_data.o \
inode.o \
io_manager.o \
ismounted.o \
$(srcdir)/freefs.c \
$(srcdir)/gen_bitmap.c \
$(srcdir)/gen_bitmap64.c \
+ $(srcdir)/get_num_dirs.c \
$(srcdir)/get_pathname.c \
$(srcdir)/getsize.c \
$(srcdir)/getsectsize.c \
$(srcdir)/ind_block.c \
$(srcdir)/initialize.c \
$(srcdir)/inline.c \
+ $(srcdir)/inline_data.c \
$(srcdir)/inode.c \
$(srcdir)/inode_io.c \
$(srcdir)/imager.c \
$(E) " CC $<"
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
@CHECKER_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -checker -g -o checker/$*.o -c $<
@ELF_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -fPIC -o elfshared/$*.o -c $<
$(Q) $(CC) -o tst_inline $(srcdir)/inline.c $(ALL_CFLAGS) -DDEBUG \
$(STATIC_LIBEXT2FS) $(STATIC_LIBCOM_ERR) $(SYSLIBS)
+tst_inline_data: inline_data.c $(STATIC_LIBEXT2FS) $(DEPSTATIC_LIBCOM_ERR)
+ $(E) " LD $@"
+ $(Q) $(CC) -o tst_inline_data $(srcdir)/inline_data.c $(ALL_CFLAGS) \
+ -DDEBUG $(STATIC_LIBEXT2FS) $(STATIC_LIBCOM_ERR)
+
tst_csum: csum.c $(STATIC_LIBEXT2FS) $(DEPSTATIC_LIBCOM_ERR) $(STATIC_LIBE2P) \
$(top_srcdir)/lib/e2p/e2p.h
$(E) " LD $@"
check:: tst_bitops tst_badblocks tst_iscan tst_types tst_icount \
tst_super_size tst_types tst_inode_size tst_csum tst_crc32c tst_bitmaps \
- tst_inline
+ tst_inline tst_inline_data
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_bitops
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_badblocks
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_iscan
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_inode_size
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_csum
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_inline
+ LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_inline_data
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) ./tst_crc32c
LD_LIBRARY_PATH=$(LIB) DYLD_LIBRARY_PATH=$(LIB) \
./tst_bitmaps -f $(srcdir)/tst_bitmaps_cmds > tst_bitmaps_out
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fs.h \
$(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
$(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
- $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h
+ $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h $(srcdir)/ext2fsP.h
ext_attr.o: $(srcdir)/ext_attr.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2_ext_attr.h \
$(top_srcdir)/lib/et/com_err.h $(srcdir)/ext2_io.h \
$(top_builddir)/lib/ext2fs/ext2_err.h $(srcdir)/ext2_ext_attr.h \
$(srcdir)/bitops.h $(srcdir)/bmap64.h
+get_num_dirs.o: $(srcdir)/get_num_dirs.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fsP.h \
+ $(srcdir)/ext2fs.h $(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h \
+ $(top_srcdir)/lib/et/com_err.h $(srcdir)/ext2_io.h \
+ $(top_builddir)/lib/ext2fs/ext2_err.h $(srcdir)/ext2_ext_attr.h \
+ $(srcdir)/bitops.h
get_pathname.o: $(srcdir)/get_pathname.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fs.h \
$(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
$(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h
+inline_data.o: $(srcdir)/inline_data.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \
+ $(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2_ext_attr.h \
+ $(srcdir)/ext2fs.h $(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h \
+ $(top_srcdir)/lib/et/com_err.h $(srcdir)/ext2_io.h \
+ $(top_builddir)/lib/ext2fs/ext2_err.h $(srcdir)/ext2_ext_attr.h \
+ $(srcdir)/bitops.h $(srcdir)/ext2fsP.h
inode.o: $(srcdir)/inode.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fsP.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fs.h \
$(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
$(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
- $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h
+ $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h $(srcdir)/ext2fsP.h
mkjournal.o: $(srcdir)/mkjournal.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/e2p/e2p.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fs.h \
$(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
$(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
- $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h
+ $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h $(srcdir)/ext2fsP.h
qcow2.o: $(srcdir)/qcow2.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/ext2fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2_fs.h \
icount.obj \
initialize.obj \
inline.obj \
+ inline_data.obj \
inode.obj \
ismounted.obj \
link.obj \
*/
static void clear_block_uninit(ext2_filsys fs, dgrp_t group)
{
- if (!(EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) ||
+ if (!ext2fs_has_group_desc_csum(fs) ||
!(ext2fs_bg_flags_test(fs, group, EXT2_BG_BLOCK_UNINIT)))
return;
{
ext2_ino_t i, ino;
- if (!(EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) ||
+ if (!ext2fs_has_group_desc_csum(fs) ||
!(ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)))
return;
/* We don't strictly need to be clearing the uninit flag if inuse < 0
* (i.e. freeing inodes) but it also means something is bad. */
ext2fs_bg_flags_clear(fs, group, EXT2_BG_INODE_UNINIT);
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ if (ext2fs_has_group_desc_csum(fs)) {
ext2_ino_t first_unused_inode = fs->super->s_inodes_per_group -
ext2fs_bg_itable_unused(fs, group) +
group * fs->super->s_inodes_per_group + 1;
while (num) {
int group = ext2fs_group_of_blk2(fs, blk);
blk64_t last_blk = ext2fs_group_last_block2(fs, group);
- blk_t n = num;
+ blk64_t n = num;
if (blk + num > last_blk)
n = last_blk - blk + 1;
dgrp_t i;
struct ext2fs_numeric_progress_struct progress;
- ext2fs_numeric_progress_init(fs, &progress, NULL,
- fs->group_desc_count);
+ if (fs->progress_ops && fs->progress_ops->init)
+ (fs->progress_ops->init)(fs, &progress, NULL,
+ fs->group_desc_count);
for (i = 0; i < fs->group_desc_count; i++) {
- ext2fs_numeric_progress_update(fs, &progress, i);
+ if (fs->progress_ops && fs->progress_ops->update)
+ (fs->progress_ops->update)(fs, &progress, i);
retval = ext2fs_allocate_group_table(fs, i, fs->block_map);
if (retval)
return retval;
}
- ext2fs_numeric_progress_close(fs, &progress, NULL);
+ if (fs->progress_ops && fs->progress_ops->close)
+ (fs->progress_ops->close)(fs, &progress, NULL);
return 0;
}
(size_t) (((bitmap->real_end - bitmap->start) / 8) + 1));
}
+#ifdef ENABLE_BMAP_STATS
static void ba_print_stats(ext2fs_generic_bitmap bitmap)
{
fprintf(stderr, "%16llu Bytes used by bitarray\n",
((bitmap->real_end - bitmap->start) >> 3) + 1 +
sizeof(struct ext2fs_ba_private_struct));
}
+#else
+static void ba_print_stats(ext2fs_generic_bitmap bitmap) {}
+#endif
/* Find the first zero bit between start and end, inclusive. */
static errcode_t ba_find_first_zero(ext2fs_generic_bitmap bitmap,
struct bmap_rb_extent *wcursor;
struct bmap_rb_extent *rcursor;
struct bmap_rb_extent *rcursor_next;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
__u64 mark_hit;
__u64 test_hit;
#endif
retval = ext2fs_get_mem(sizeof (struct bmap_rb_extent),
&new_ext);
- if (retval) {
- perror("ext2fs_get_mem");
- exit(1);
- }
+ if (retval)
+ abort();
new_ext->start = start;
new_ext->count = count;
bp->rcursor_next = NULL;
bp->wcursor = NULL;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bp->test_hit = 0;
bp->mark_hit = 0;
#endif
goto search_tree;
if (bit >= rcursor->start && bit < rcursor->start + rcursor->count) {
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bp->test_hit++;
#endif
return 1;
if (ext) {
if (start >= ext->start &&
start <= (ext->start + ext->count)) {
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bp->mark_hit++;
#endif
goto got_extent;
return ENOENT;
}
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
static void rb_print_stats(ext2fs_generic_bitmap bitmap)
{
struct ext2fs_rb_private *bp;
__u64 min_size = ULONG_MAX;
__u64 size = 0, avg_size = 0;
double eff;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
__u64 mark_all, test_all;
double m_hit = 0.0, t_hit = 0.0;
#endif
min_size = 0;
eff = (double)((count * sizeof(struct bmap_rb_extent)) << 3) /
(bitmap->real_end - bitmap->start);
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
mark_all = bitmap->stats.mark_count + bitmap->stats.mark_ext_count;
test_all = bitmap->stats.test_count + bitmap->stats.test_ext_count;
if (mark_all)
eff);
}
#else
-static void rb_print_stats(ext2fs_generic_bitmap bitmap){}
+static void rb_print_stats(ext2fs_generic_bitmap bitmap EXT2FS_ATTR((unused)))
+{
+}
#endif
struct ext2_bitmap_ops ext2fs_blkmap64_rbtree = {
return (struct ext4_group_desc *)ext2fs_group_desc(fs, gdp, group);
}
+/*
+ * Return the block bitmap checksum of a group
+ */
+__u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group)
+{
+ struct ext4_group_desc *gdp;
+ __u32 csum;
+
+ gdp = ext4fs_group_desc(fs, fs->group_desc, group);
+ csum = gdp->bg_block_bitmap_csum_lo;
+ if (fs->super->s_desc_size >= EXT4_BG_BLOCK_BITMAP_CSUM_HI_LOCATION)
+ csum |= ((__u32)gdp->bg_block_bitmap_csum_hi << 16);
+ return csum;
+}
+
/*
* Return the block bitmap block of a group
*/
gdp->bg_block_bitmap_hi = (__u64) blk >> 32;
}
+/*
+ * Return the inode bitmap checksum of a group
+ */
+__u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group)
+{
+ struct ext4_group_desc *gdp;
+ __u32 csum;
+
+ gdp = ext4fs_group_desc(fs, fs->group_desc, group);
+ csum = gdp->bg_inode_bitmap_csum_lo;
+ if (fs->super->s_desc_size >= EXT4_BG_INODE_BITMAP_CSUM_HI_END)
+ csum |= ((__u32)gdp->bg_inode_bitmap_csum_hi << 16);
+ return csum;
+}
+
/*
* Return the inode bitmap block of a group
*/
if (ctx.errcode)
return ctx.errcode;
+ /*
+ * An inode with inline data has no blocks over which to
+ * iterate, so return an error code indicating this fact.
+ */
+ if (inode.i_flags & EXT4_INLINE_DATA_FL)
+ return EXT2_ET_INLINE_DATA_CANT_ITERATE;
+
/*
* Check to see if we need to limit large files
*/
if (ext2fs_file_block_offset_too_big(fs, inode, block))
return EXT2_ET_FILE_TOO_BIG;
+ /*
+ * If an inode has inline data, that means that it doesn't have
+ * any blocks and we shouldn't map any blocks for it.
+ */
+ if (inode->i_flags & EXT4_INLINE_DATA_FL)
+ return EXT2_ET_INLINE_DATA_NO_BLOCK;
+
if (!block_buf) {
retval = ext2fs_get_array(2, fs->blocksize, &buf);
if (retval)
int type;
struct timeval created;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
unsigned long copy_count;
unsigned long resize_count;
unsigned long mark_count;
unsigned long mark_seq;
unsigned long test_seq;
-#endif /* BMAP_STATS_OPS */
+#endif /* ENABLE_BMAP_STATS_OPS */
};
char *description;
void *private;
errcode_t base_error_code;
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
struct ext2_bmap_statistics stats;
#endif
};
blk64_t group_block,
struct ext2_super_block *super_shadow)
{
+ errcode_t retval;
dgrp_t sgrp = group;
if (sgrp > ((1 << 16) - 1))
sgrp = (1 << 16) - 1;
+
+ super_shadow->s_block_group_nr = sgrp;
#ifdef WORDS_BIGENDIAN
- super_shadow->s_block_group_nr = ext2fs_swab16(sgrp);
-#else
- fs->super->s_block_group_nr = sgrp;
+ ext2fs_swap_super(super_shadow);
#endif
+ retval = ext2fs_superblock_csum_set(fs, super_shadow);
+ if (retval)
+ return retval;
return io_channel_write_blk64(fs->io, group_block, -SUPERBLOCK_SIZE,
super_shadow);
fs->super->s_wtime = fs->now ? fs->now : time(NULL);
fs->super->s_block_group_nr = 0;
+
+ /*
+ * If the write_bitmaps() function is present, call it to
+ * flush the bitmaps. This is done this way so that a simple
+ * program that doesn't mess with the bitmaps doesn't need to
+ * drag in the bitmaps.c code.
+ *
+ * Bitmap checksums live in the group descriptor, so the
+ * bitmaps need to be written before the descriptors.
+ */
+ if (fs->write_bitmaps) {
+ retval = fs->write_bitmaps(fs);
+ if (retval)
+ goto errout;
+ }
+
+ /* Prepare the group descriptors for writing */
#ifdef WORDS_BIGENDIAN
retval = EXT2_ET_NO_MEMORY;
retval = ext2fs_get_mem(SUPERBLOCK_SIZE, &super_shadow);
&group_shadow);
if (retval)
goto errout;
+ memcpy(super_shadow, fs->super, sizeof(struct ext2_super_block));
memcpy(group_shadow, fs->group_desc, (size_t) fs->blocksize *
fs->desc_blocks);
*/
fs->super->s_state &= ~EXT2_VALID_FS;
fs->super->s_feature_incompat &= ~EXT3_FEATURE_INCOMPAT_RECOVER;
-#ifdef WORDS_BIGENDIAN
- *super_shadow = *fs->super;
- ext2fs_swap_super(super_shadow);
-#endif
/*
* If this is an external journal device, don't write out the
else
old_desc_blocks = fs->desc_blocks;
- ext2fs_numeric_progress_init(fs, &progress, NULL,
- fs->group_desc_count);
+ if (fs->progress_ops && fs->progress_ops->init)
+ (fs->progress_ops->init)(fs, &progress, NULL,
+ fs->group_desc_count);
for (i = 0; i < fs->group_desc_count; i++) {
blk64_t super_blk, old_desc_blk, new_desc_blk;
- ext2fs_numeric_progress_update(fs, &progress, i);
+ if (fs->progress_ops && fs->progress_ops->update)
+ (fs->progress_ops->update)(fs, &progress, i);
ext2fs_super_and_bgd_loc2(fs, i, &super_blk, &old_desc_blk,
&new_desc_blk, 0);
}
}
- ext2fs_numeric_progress_close(fs, &progress, NULL);
-
- /*
- * If the write_bitmaps() function is present, call it to
- * flush the bitmaps. This is done this way so that a simple
- * program that doesn't mess with the bitmaps doesn't need to
- * drag in the bitmaps.c code.
- */
- if (fs->write_bitmaps) {
- retval = fs->write_bitmaps(fs);
- if (retval)
- goto errout;
- }
+ if (fs->progress_ops && fs->progress_ops->close)
+ (fs->progress_ops->close)(fs, &progress, NULL);
write_primary_superblock_only:
/*
ext2fs_swap_super(super_shadow);
#endif
+ retval = ext2fs_superblock_csum_set(fs, super_shadow);
+ if (retval)
+ return retval;
+
if (!(flags & EXT2_FLAG_FLUSH_NO_SYNC))
retval = io_channel_flush(fs->io);
retval = write_primary_superblock(fs, super_shadow);
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
-#define __force
#define min(x, y) ((x) > (y) ? (y) : (x))
#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask))
#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (__typeof__(x))(a) - 1)
#endif
#if CRC_LE_BITS > 8
-# define tole(x) (__force uint32_t) __constant_cpu_to_le32(x)
+# define tole(x) __constant_cpu_to_le32(x)
#else
# define tole(x) (x)
#endif
#if CRC_BE_BITS > 8
-# define tobe(x) (__force uint32_t) __constant_cpu_to_be32(x)
+# define tobe(x) __constant_cpu_to_be32(x)
#else
# define tobe(x) (x)
#endif
#include "crc32c_table.h"
-#if CRC_LE_BITS == 32
-/* slice by 4 algorithm */
-static uint32_t crc32c_le_body(uint32_t crc, uint8_t const *buf, size_t len)
-{
- const uint8_t *p8;
- const uint32_t *p32;
- size_t init_bytes;
- size_t words;
- size_t end_bytes;
- size_t i;
- uint32_t q;
- uint8_t i0, i1, i2, i3;
-
- crc = (__force uint32_t) __cpu_to_le32(crc);
-
- /* unroll loop into 'init_bytes' odd bytes followed by
- * 'words' aligned 4 byte words followed by
- * 'end_bytes' odd bytes at the end */
- p8 = buf;
- p32 = (uint32_t *)PTR_ALIGN(p8, 4);
- init_bytes = min((uintptr_t)p32 - (uintptr_t)p8, len);
- words = (len - init_bytes) >> 2;
- end_bytes = (len - init_bytes) & 3;
-
- for (i = 0; i < init_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_le[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_le[i0] ^ (crc << 8);
-#endif
- }
-
- /* using pre-increment below slightly faster */
- p32--;
-
- for (i = 0; i < words; i++) {
-#ifndef WORDS_BIGENDIAN
- q = *++p32 ^ crc;
- i3 = q;
- i2 = q >> 8;
- i1 = q >> 16;
- i0 = q >> 24;
- crc = t3_le[i3] ^ t2_le[i2] ^ t1_le[i1] ^ t0_le[i0];
-#else
- q = *++p32 ^ crc;
- i3 = q >> 24;
- i2 = q >> 16;
- i1 = q >> 8;
- i0 = q;
- crc = t3_le[i3] ^ t2_le[i2] ^ t1_le[i1] ^ t0_le[i0];
-#endif
- }
+#if CRC_LE_BITS > 8 || CRC_BE_BITS > 8
- p8 = (uint8_t *)(++p32);
-
- for (i = 0; i < end_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_le[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_le[i0] ^ (crc << 8);
-#endif
- }
-
- return __le32_to_cpu((__force __le32)crc);
-}
-#endif
-
-#if CRC_BE_BITS == 32
-static uint32_t crc32c_be_body(uint32_t crc, uint8_t const *buf, size_t len)
+/* implements slicing-by-4 or slicing-by-8 algorithm */
+static inline uint32_t
+crc32_body(uint32_t crc, unsigned char const *buf, size_t len,
+ const uint32_t (*tab)[256])
{
- const uint8_t *p8;
- const uint32_t *p32;
- size_t init_bytes;
- size_t words;
- size_t end_bytes;
- size_t i;
- uint32_t q;
- uint8_t i0, i1, i2, i3;
-
- crc = (__force uint32_t) __cpu_to_be32(crc);
-
- p8 = buf;
- p32 = (uint32_t *)PTR_ALIGN(p8, 4);
- init_bytes = min((uintptr_t)p32 - (uintptr_t)p8, len);
- words = (len - init_bytes) >> 2;
- end_bytes = (len - init_bytes) & 3;
-
- for (i = 0; i < init_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_be[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_be[i0] ^ (crc << 8);
-#endif
- }
-
- p32--;
-
- for (i = 0; i < words; i++) {
-#ifndef WORDS_BIGENDIAN
- q = *++p32 ^ crc;
- i3 = q;
- i2 = q >> 8;
- i1 = q >> 16;
- i0 = q >> 24;
- crc = t3_be[i3] ^ t2_be[i2] ^ t1_be[i1] ^ t0_be[i0];
-#else
- q = *++p32 ^ crc;
- i3 = q >> 24;
- i2 = q >> 16;
- i1 = q >> 8;
- i0 = q;
- crc = t3_be[i3] ^ t2_be[i2] ^ t1_be[i1] ^ t0_be[i0];
-#endif
- }
-
- p8 = (uint8_t *)(++p32);
-
- for (i = 0; i < end_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_be[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_be[i0] ^ (crc << 8);
-#endif
- }
-
- return __be32_to_cpu((__force __be32)crc);
-}
-#endif
-
-#if CRC_LE_BITS == 64
-/* slice by 8 algorithm */
-static uint32_t crc32c_le_body(uint32_t crc, uint8_t const *buf, size_t len)
-{
- const uint8_t *p8;
- const uint32_t *p32;
- size_t init_bytes;
- size_t words;
- size_t end_bytes;
- size_t i;
- uint32_t q;
- uint8_t i0, i1, i2, i3;
-
- crc = (__force uint32_t) __cpu_to_le32(crc);
-
- p8 = buf;
- p32 = (const uint32_t *)PTR_ALIGN(p8, 8);
- init_bytes = min((uintptr_t)p32 - (uintptr_t)p8, len);
- words = (len - init_bytes) >> 3;
- end_bytes = (len - init_bytes) & 7;
-
- for (i = 0; i < init_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_le[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_le[i0] ^ (crc << 8);
-#endif
- }
-
- p32--;
-
- for (i = 0; i < words; i++) {
-#ifndef WORDS_BIGENDIAN
- q = *++p32 ^ crc;
- i3 = q;
- i2 = q >> 8;
- i1 = q >> 16;
- i0 = q >> 24;
- crc = t7_le[i3] ^ t6_le[i2] ^ t5_le[i1] ^ t4_le[i0];
-
- q = *++p32;
- i3 = q;
- i2 = q >> 8;
- i1 = q >> 16;
- i0 = q >> 24;
- crc ^= t3_le[i3] ^ t2_le[i2] ^ t1_le[i1] ^ t0_le[i0];
-#else
- q = *++p32 ^ crc;
- i3 = q >> 24;
- i2 = q >> 16;
- i1 = q >> 8;
- i0 = q;
- crc = t7_le[i3] ^ t6_le[i2] ^ t5_le[i1] ^ t4_le[i0];
-
- q = *++p32;
- i3 = q >> 24;
- i2 = q >> 16;
- i1 = q >> 8;
- i0 = q;
- crc ^= t3_le[i3] ^ t2_le[i2] ^ t1_le[i1] ^ t0_le[i0];
-#endif
- }
-
- p8 = (const uint8_t *)(++p32);
-
- for (i = 0; i < end_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_le[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_le[i0] ^ (crc << 8);
-#endif
- }
-
- return __le32_to_cpu(crc);
-}
-#endif
-
-#if CRC_BE_BITS == 64
-static uint32_t crc32c_be_body(uint32_t crc, uint8_t const *buf, size_t len)
-{
- const uint8_t *p8;
- const uint32_t *p32;
- size_t init_bytes;
- size_t words;
- size_t end_bytes;
- size_t i;
+# ifndef WORDS_BIGENDIAN
+# define DO_CRC(x) (crc = t0[(crc ^ (x)) & 255] ^ (crc >> 8))
+# define DO_CRC4 (t3[(q) & 255] ^ t2[(q >> 8) & 255] ^ \
+ t1[(q >> 16) & 255] ^ t0[(q >> 24) & 255])
+# define DO_CRC8 (t7[(q) & 255] ^ t6[(q >> 8) & 255] ^ \
+ t5[(q >> 16) & 255] ^ t4[(q >> 24) & 255])
+# else
+# define DO_CRC(x) (crc = t0[((crc >> 24) ^ (x)) & 255] ^ (crc << 8))
+# define DO_CRC4 (t0[(q) & 255] ^ t1[(q >> 8) & 255] ^ \
+ t2[(q >> 16) & 255] ^ t3[(q >> 24) & 255])
+# define DO_CRC8 (t4[(q) & 255] ^ t5[(q >> 8) & 255] ^ \
+ t6[(q >> 16) & 255] ^ t7[(q >> 24) & 255])
+# endif
+ const uint32_t *b;
+ size_t rem_len;
+ const uint32_t *t0 = tab[0], *t1 = tab[1], *t2 = tab[2], *t3 = tab[3];
+ const uint32_t *t4 = tab[4], *t5 = tab[5], *t6 = tab[6], *t7 = tab[7];
uint32_t q;
- uint8_t i0, i1, i2, i3;
-
- crc = (__force uint32_t) __cpu_to_be32(crc);
- p8 = buf;
- p32 = (const uint32_t *)PTR_ALIGN(p8, 8);
- init_bytes = min((uintptr_t)p32 - (uintptr_t)p8, len);
- words = (len - init_bytes) >> 3;
- end_bytes = (len - init_bytes) & 7;
-
- for (i = 0; i < init_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_be[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_be[i0] ^ (crc << 8);
-#endif
+ /* Align it */
+ if (unlikely((long)buf & 3 && len)) {
+ do {
+ DO_CRC(*buf++);
+ } while ((--len) && ((long)buf)&3);
}
- p32--;
-
- for (i = 0; i < words; i++) {
-#ifndef WORDS_BIGENDIAN
- q = *++p32 ^ crc;
- i3 = q;
- i2 = q >> 8;
- i1 = q >> 16;
- i0 = q >> 24;
- crc = t7_be[i3] ^ t6_be[i2] ^ t5_be[i1] ^ t4_be[i0];
-
- q = *++p32;
- i3 = q;
- i2 = q >> 8;
- i1 = q >> 16;
- i0 = q >> 24;
- crc ^= t3_be[i3] ^ t2_be[i2] ^ t1_be[i1] ^ t0_be[i0];
-#else
- q = *++p32 ^ crc;
- i3 = q >> 24;
- i2 = q >> 16;
- i1 = q >> 8;
- i0 = q;
- crc = t7_be[i3] ^ t6_be[i2] ^ t5_be[i1] ^ t4_be[i0];
+# if CRC_LE_BITS == 32
+ rem_len = len & 3;
+ len = len >> 2;
+# else
+ rem_len = len & 7;
+ len = len >> 3;
+# endif
- q = *++p32;
- i3 = q >> 24;
- i2 = q >> 16;
- i1 = q >> 8;
- i0 = q;
- crc ^= t3_be[i3] ^ t2_be[i2] ^ t1_be[i1] ^ t0_be[i0];
-#endif
+ b = (const uint32_t *)buf;
+ for (--b; len; --len) {
+ q = crc ^ *++b; /* use pre increment for speed */
+# if CRC_LE_BITS == 32
+ crc = DO_CRC4;
+# else
+ crc = DO_CRC8;
+ q = *++b;
+ crc ^= DO_CRC4;
+# endif
}
-
- p8 = (const uint8_t *)(++p32);
-
- for (i = 0; i < end_bytes; i++) {
-#ifndef WORDS_BIGENDIAN
- i0 = *p8++ ^ crc;
- crc = t0_be[i0] ^ (crc >> 8);
-#else
- i0 = *p8++ ^ (crc >> 24);
- crc = t0_be[i0] ^ (crc << 8);
-#endif
+ len = rem_len;
+ /* And the last few bytes */
+ if (len) {
+ const uint8_t *p = (const uint8_t *)(b + 1) - 1;
+ do {
+ DO_CRC(*++p); /* use pre increment for speed */
+ } while (--len);
}
-
- return __be32_to_cpu(crc);
+ return crc;
+#undef DO_CRC
+#undef DO_CRC4
+#undef DO_CRC8
}
#endif
/**
- * crc32c_le() - Calculate bitwise little-endian CRC32c.
- * @crc: seed value for computation. ~0 for ext4, sometimes 0 for
- * other uses, or the previous crc32c value if computing incrementally.
+ * crc32_le() - Calculate bitwise little-endian Ethernet AUTODIN II CRC32
+ * @crc: seed value for computation. ~0 for Ethernet, sometimes 0 for
+ * other uses, or the previous crc32 value if computing incrementally.
* @p: pointer to buffer over which CRC is run
* @len: length of buffer @p
*/
-uint32_t ext2fs_crc32c_le(uint32_t crc, unsigned char const *p, size_t len)
+static inline uint32_t crc32_le_generic(uint32_t crc, unsigned char const *p,
+ size_t len, const uint32_t (*tab)[256],
+ uint32_t polynomial EXT2FS_ATTR((unused)))
{
#if CRC_LE_BITS == 1
int i;
while (len--) {
crc ^= *p++;
for (i = 0; i < 8; i++)
- crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
+ crc = (crc >> 1) ^ ((crc & 1) ? polynomial : 0);
}
# elif CRC_LE_BITS == 2
while (len--) {
crc ^= *p++;
- crc = (crc >> 2) ^ t0_le[crc & 0x03];
- crc = (crc >> 2) ^ t0_le[crc & 0x03];
- crc = (crc >> 2) ^ t0_le[crc & 0x03];
- crc = (crc >> 2) ^ t0_le[crc & 0x03];
+ crc = (crc >> 2) ^ tab[0][crc & 3];
+ crc = (crc >> 2) ^ tab[0][crc & 3];
+ crc = (crc >> 2) ^ tab[0][crc & 3];
+ crc = (crc >> 2) ^ tab[0][crc & 3];
}
# elif CRC_LE_BITS == 4
while (len--) {
crc ^= *p++;
- crc = (crc >> 4) ^ t0_le[crc & 0x0f];
- crc = (crc >> 4) ^ t0_le[crc & 0x0f];
+ crc = (crc >> 4) ^ tab[0][crc & 15];
+ crc = (crc >> 4) ^ tab[0][crc & 15];
}
# elif CRC_LE_BITS == 8
+ /* aka Sarwate algorithm */
while (len--) {
crc ^= *p++;
- crc = (crc >> 8) ^ t0_le[crc & 0xff];
+ crc = (crc >> 8) ^ tab[0][crc & 255];
}
# else
- crc = crc32c_le_body(crc, p, len);
-# endif
+ crc = __cpu_to_le32(crc);
+ crc = crc32_body(crc, p, len, tab);
+ crc = __le32_to_cpu(crc);
+#endif
return crc;
}
+uint32_t ext2fs_crc32c_le(uint32_t crc, unsigned char const *p, size_t len)
+{
+ return crc32_le_generic(crc, p, len, crc32ctable_le, CRC32C_POLY_LE);
+}
+
/**
- * crc32c_be() - Calculate bitwise big-endian CRC32c.
- * @crc: seed value for computation. ~0 for ext4, sometimes 0 for
- * other uses, or the previous crc32c value if computing incrementally.
+ * crc32_be() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32
+ * @crc: seed value for computation. ~0 for Ethernet, sometimes 0 for
+ * other uses, or the previous crc32 value if computing incrementally.
* @p: pointer to buffer over which CRC is run
* @len: length of buffer @p
*/
-uint32_t ext2fs_crc32c_be(uint32_t crc, unsigned char const *p, size_t len)
+static inline uint32_t crc32_be_generic(uint32_t crc, unsigned char const *p,
+ size_t len, const uint32_t (*tab)[256],
+ uint32_t polynomial EXT2FS_ATTR((unused)))
{
#if CRC_BE_BITS == 1
int i;
while (len--) {
crc ^= *p++ << 24;
for (i = 0; i < 8; i++)
- crc = (crc << 1) ^
- ((crc & 0x80000000) ? CRCPOLY_BE : 0);
+ crc =
+ (crc << 1) ^ ((crc & 0x80000000) ? polynomial :
+ 0);
}
# elif CRC_BE_BITS == 2
while (len--) {
crc ^= *p++ << 24;
- crc = (crc << 2) ^ t0_be[crc >> 30];
- crc = (crc << 2) ^ t0_be[crc >> 30];
- crc = (crc << 2) ^ t0_be[crc >> 30];
- crc = (crc << 2) ^ t0_be[crc >> 30];
+ crc = (crc << 2) ^ tab[0][crc >> 30];
+ crc = (crc << 2) ^ tab[0][crc >> 30];
+ crc = (crc << 2) ^ tab[0][crc >> 30];
+ crc = (crc << 2) ^ tab[0][crc >> 30];
}
# elif CRC_BE_BITS == 4
while (len--) {
crc ^= *p++ << 24;
- crc = (crc << 4) ^ t0_be[crc >> 28];
- crc = (crc << 4) ^ t0_be[crc >> 28];
+ crc = (crc << 4) ^ tab[0][crc >> 28];
+ crc = (crc << 4) ^ tab[0][crc >> 28];
}
# elif CRC_BE_BITS == 8
while (len--) {
crc ^= *p++ << 24;
- crc = (crc << 8) ^ t0_be[crc >> 24];
+ crc = (crc << 8) ^ tab[0][crc >> 24];
}
# else
- crc = crc32c_be_body(crc, p, len);
+ crc = __cpu_to_be32(crc);
+ crc = crc32_body(crc, p, len, tab);
+ crc = __be32_to_cpu(crc);
# endif
return crc;
}
+uint32_t ext2fs_crc32_be(uint32_t crc, unsigned char const *p, size_t len)
+{
+ return crc32_be_generic(crc, p, len, crc32table_be, CRCPOLY_BE);
+}
+
#ifdef UNITTEST
static uint8_t test_buf[] = {
0xd9, 0xd7, 0x6a, 0x13, 0x3a, 0xb1, 0x05, 0x48,
uint32_t crc; /* random starting crc */
uint32_t start; /* random offset in buf */
uint32_t length; /* random length of test */
- uint32_t crc_le; /* expected crc32_le result */
- uint32_t crc_be; /* expected crc32_be result */
+ uint32_t crc32c_le; /* expected crc32c_le result */
+ uint32_t crc32_be; /* expected crc32_be result */
} test[] = {
- {0xffffffff, 0x00000000, 0x00001000, 0x13934bef, 0x14f3b75f},
- {0xfe7328ea, 0x00000763, 0x00000717, 0xed2c0d70, 0x57531214},
- {0x4c40684e, 0x00000721, 0x0000011e, 0xd7f46ccc, 0xedf12ec3},
- {0x6b487f90, 0x00000264, 0x000007bc, 0x759e9939, 0x9af8e387},
- {0x9f5810db, 0x00000afa, 0x00000255, 0x2685197f, 0x716de6ed},
- {0xb15c4755, 0x00000d5b, 0x000002a4, 0xd8fadcb5, 0xfc34ae3f},
- {0x06518253, 0x00000ffb, 0x00000004, 0xabee2433, 0xfa30ac9e},
- {0xd9e71c55, 0x00000a2a, 0x00000259, 0x96682af2, 0xe5907ea3},
- {0x0c1ae843, 0x00000ce4, 0x0000031b, 0x7b637c43, 0xe7f71b04},
- {0xec3cd517, 0x000002ff, 0x00000566, 0x5d719a77, 0xed16e045},
- {0x77828e95, 0x0000067f, 0x0000038f, 0x43ee5b6c, 0x35999927},
- {0xec87b4e3, 0x00000d1c, 0x000002e3, 0x2ddd2eee, 0x9452d3f8},
- {0x412158bb, 0x00000eee, 0x00000111, 0x67b38ba2, 0x177976d0},
- {0x2e52de3e, 0x00000c4a, 0x000003b5, 0xbcc5d61d, 0xf60fee71},
- {0x6ddaae8b, 0x00000d99, 0x00000266, 0x8b535544, 0x1dab8596},
- {0x049b6cb1, 0x000009c5, 0x000000b0, 0xfc22cabc, 0x47ebc954},
- {0x77d4b954, 0x0000028a, 0x000007fa, 0x71d00923, 0x905585ef},
- {0x5e192355, 0x00000ac1, 0x000001fa, 0xb966b81a, 0x33c12903},
- {0x7d80b71d, 0x00000213, 0x000001e0, 0x2bba371a, 0x5f4bd8d9},
- {0x01f6f1e4, 0x000001d6, 0x00000395, 0xb7e8a647, 0x2a7943a1},
- {0x1dfabb13, 0x00000e14, 0x000001eb, 0x53917fba, 0x8dee1e5d},
- {0xb00a4449, 0x00000bf6, 0x00000409, 0xedecb577, 0x628e087d},
- {0x7ecd3981, 0x0000083f, 0x0000016b, 0xefef62b9, 0xda4f94e6},
- {0xf8f330d2, 0x000004be, 0x00000757, 0x9357c9f3, 0x8e2d5c2f},
- {0x03c38af2, 0x00000d23, 0x000002dc, 0x360fa8c0, 0x6294c0d6},
- {0x687bb79b, 0x00000f3d, 0x000000c2, 0x448d3be2, 0x08f48f3a},
- {0x6710f550, 0x000009e9, 0x00000603, 0xdbfd1998, 0xc950ac29},
- {0x873171d1, 0x00000787, 0x000004d5, 0xab7f1b62, 0xe66896ab},
- {0x373b1314, 0x00000f0f, 0x000000f0, 0x184098ab, 0x4038e674},
- {0x90fad9cd, 0x00000ead, 0x00000152, 0x23ce52ff, 0x9eff3974},
- {0x19676fe7, 0x0000007d, 0x0000070d, 0xf8a76f1e, 0xfbc5c8a9},
- {0x89facd45, 0x000005f3, 0x00000473, 0x4331a006, 0xb8f0f0cc},
- {0x6f173747, 0x00000fc3, 0x0000003c, 0xb012f08e, 0x5126e378},
- {0x4b44a106, 0x0000075a, 0x0000008b, 0xf6f7ac38, 0xf9b1781b},
- {0xb620ad06, 0x00000774, 0x0000017e, 0xd34558e6, 0xb175edd3},
- {0x976f21e9, 0x000008d7, 0x0000034a, 0xe533aa3a, 0x1e4367b9},
- {0x687628c0, 0x000006c5, 0x0000061b, 0x3a840b15, 0xfb5989a0},
- {0xe24ac108, 0x00000cd0, 0x0000032f, 0x51010ae8, 0xcdd8f182},
- {0x361c44a3, 0x00000304, 0x00000719, 0xfd7bd481, 0x12de540f},
- {0xd93ff95e, 0x00000db7, 0x0000008e, 0xcfbbc304, 0x42eecd5a},
- {0xed752d12, 0x00000883, 0x00000091, 0x65a6c868, 0x9ebfa578},
- {0xb4ff4b54, 0x000003d3, 0x000001c1, 0xf82597e7, 0xa8ad2b19},
- {0x111b520f, 0x00000708, 0x000000eb, 0xc3e109f3, 0x323ace17},
- {0x62c806f2, 0x00000ba3, 0x0000045c, 0x874d3a72, 0xaf1a1360},
- {0x40d97470, 0x000005e1, 0x0000058d, 0x87a9684f, 0x524244a8},
- {0x4312179c, 0x00000056, 0x0000070e, 0x809a00f5, 0xf9e940b0},
- {0x13d5f84c, 0x00000a2d, 0x00000104, 0xf3d27578, 0x5d33341c},
- {0x1f302cb2, 0x00000151, 0x00000014, 0x1e162693, 0x53c3cfc3},
- {0xe491db24, 0x00000600, 0x000006f6, 0x7ff09615, 0xa300ecf7},
- {0xf9a98069, 0x000002ba, 0x000002ad, 0x01af7387, 0x31c0911e},
- {0xe9c477ad, 0x0000015f, 0x00000778, 0x6facf9a0, 0x1993b688},
- {0x353f32b2, 0x0000087c, 0x00000783, 0x6cc964ea, 0x418db561},
- {0x78e1b24f, 0x00000650, 0x000006a8, 0xb3bb7c27, 0xf2aad006},
- {0x61aa400e, 0x00000049, 0x00000254, 0xb8cd1681, 0x79150b15},
- {0xb84b10b0, 0x00000f73, 0x0000008c, 0x406a6450, 0x0c705222},
- {0x9fa99c9c, 0x00000a7c, 0x000004d7, 0xfb3d21b4, 0xe4e789df},
- {0x3fc9ebe3, 0x00000cd9, 0x000000d6, 0x43803f9c, 0x5a152be5},
- {0x529879cd, 0x000002f2, 0x00000595, 0x78b4c6a6, 0xf7236ec4},
- {0x3a933019, 0x00000516, 0x00000266, 0xdcb45436, 0x2c7935f5},
- {0x887b4977, 0x00000227, 0x0000038d, 0xc5f7c3d9, 0x0d6d7df6},
- {0x770745de, 0x000008c6, 0x00000739, 0xf69145e8, 0x47d5efc9},
- {0x28be3b47, 0x00000c46, 0x0000032b, 0x764c028f, 0x1eb70d64},
- {0x5013a050, 0x00000cf6, 0x00000309, 0xea8fe164, 0x186affa4},
- {0x2ec4c9ba, 0x000006e8, 0x0000078d, 0xa35557a9, 0xb41f49ec},
- {0xa9f950c9, 0x00000d33, 0x000002cc, 0x41ea8618, 0xab8dfae3},
- {0x5b520229, 0x000007b2, 0x00000484, 0x44569f1f, 0x607a8052},
- {0xd8dcbbfc, 0x0000002f, 0x0000048c, 0xdb88ab8b, 0xf1c411f1},
- {0x25529792, 0x00000d1d, 0x000002e2, 0x20cda404, 0x32683a2d},
- {0x9f3f6d71, 0x00000238, 0x0000079a, 0x0720443e, 0x4b8ba2ff},
- {0x64121215, 0x000007ff, 0x0000038f, 0x6aacff2c, 0x3b84233b},
- {0xfb6cdde0, 0x00000ef8, 0x00000107, 0xbd43a0f1, 0x926624d0},
- {0x221c9d6f, 0x000007b6, 0x0000014f, 0xb67f834b, 0x2bdedda4},
- {0x030e1de4, 0x00000836, 0x000004b4, 0x0d67d26a, 0x75a73b73},
- {0xb56fa6cf, 0x00000c07, 0x000003f8, 0x60601ac1, 0x10a43f35},
- {0xb55c89f5, 0x0000098e, 0x000001d4, 0x2400efbe, 0x006e28eb},
- {0x5e90b6d5, 0x0000070b, 0x000003ea, 0x3bb5d6ea, 0xb175fa6b},
- {0x2a7045ae, 0x00000961, 0x00000633, 0xfca89e4b, 0x962cd6d2},
- {0x8b374ea9, 0x000006ba, 0x00000780, 0xbce036ed, 0x4dc8279b},
- {0x8bd90bc9, 0x00000562, 0x00000369, 0xcb26a24b, 0x50dee743},
- {0x5b1b1762, 0x000000fd, 0x0000051a, 0x33cdda07, 0xee75ff7b},
- {0xa4153555, 0x0000058f, 0x000005c7, 0xbe50eeca, 0xe73fffcc},
- {0x0be1f931, 0x00000651, 0x00000672, 0x95a25753, 0x4ad6270f},
- {0xb7e78618, 0x00000a7f, 0x000002bb, 0xe06bcc1c, 0x1a35ee59},
- {0x4a9bc41b, 0x00000e51, 0x000001ae, 0x709e8d2c, 0x75080ca8},
- {0xfc359d13, 0x00000440, 0x000002f8, 0x0a58451f, 0x6fa3cfbf},
- {0x5aa48619, 0x000006d1, 0x00000284, 0x928ead83, 0xbd600efc},
- {0xa609afa8, 0x0000053e, 0x00000272, 0xb048c141, 0x184f80bb},
- {0x3f108afb, 0x00000949, 0x00000150, 0x9a6bb5bc, 0x0ea02be1},
- {0x79bec2d3, 0x000008ed, 0x00000712, 0x32692d57, 0x2eb13289},
- {0x9429e067, 0x00000bc3, 0x0000043c, 0x5295ceff, 0x8a9014a7},
- {0xae58b96a, 0x0000082d, 0x000007d2, 0xc2a681ba, 0x6af94089},
- {0x95df24be, 0x00000985, 0x000004c1, 0x3a287765, 0x379fcb42},
- {0x5e94976f, 0x00000596, 0x000004ed, 0xff00c489, 0x991fc1f5},
- {0xf5e5f1de, 0x00000d31, 0x000002ce, 0x35f28e91, 0x543def1a},
- {0xa2c219cf, 0x00000a3c, 0x00000374, 0x707d21eb, 0xa6d28bc1},
- {0xf21b6ceb, 0x00000919, 0x00000135, 0x0847fb8b, 0x224468c2},
- {0xaa988728, 0x00000787, 0x00000771, 0x885aeaa4, 0x814db00b},
- {0xaa5dfaac, 0x000003e5, 0x0000051b, 0x52c48ab7, 0x725bef8a},
- {0x0a053968, 0x00000d2a, 0x000002d5, 0x7a90256d, 0xc53b9402},
- {0x1421dc20, 0x00000eef, 0x00000110, 0x97d6da24, 0x10846935},
- {0xb47c2166, 0x00000a6a, 0x00000209, 0xcfd6cc52, 0x46e2797e},
- {0x77dd1955, 0x000000de, 0x00000266, 0xba74bcaa, 0x4fa3fe9c},
- {0x68a03cc2, 0x0000082f, 0x000007b0, 0x752bd5d8, 0x4f760c63},
- {0x0226b0a3, 0x00000a5f, 0x000005a0, 0x82de4970, 0x8ee1310e},
- {0x637bf3b1, 0x00000d93, 0x0000026c, 0x5c7115cb, 0x9f6a0ced},
- {0x3b120edf, 0x00000c13, 0x000003ec, 0x80d7d20f, 0x241657d5},
- {0xe2456780, 0x000002eb, 0x00000641, 0xc0a5d289, 0x74df96b4},
- {0x9b2e7125, 0x00000c0c, 0x000003f3, 0xcc15f57e, 0x03e290bf},
- {0x153033ef, 0x00000787, 0x000006b6, 0x3cde443b, 0x7bf1d121},
- {0x18458b3f, 0x0000066c, 0x00000561, 0x9a2bd8c6, 0x9d564bef},
- {0x4ff9d4b9, 0x00000c8f, 0x0000033a, 0xd0ee6d6d, 0xee00aa0b},
- {0xdf84b5d9, 0x00000802, 0x0000029a, 0xdab0d74a, 0xd0cb63dc},
- {0x81ee15df, 0x000003ce, 0x00000725, 0x9942e2de, 0xe48fb26b},
- {0x5c768e04, 0x00000afd, 0x00000160, 0x36110831, 0x8dc74483},
- {0xe5e18094, 0x00000b4b, 0x000000a0, 0xffa3e4a7, 0xc0145e1b},
- {0xed7263b6, 0x00000d0d, 0x000002f2, 0xb0006a35, 0x5468ae3a},
- {0x5bfde7d7, 0x000006fb, 0x00000554, 0xa4193b76, 0xb73d34b2},
- {0x67f4a743, 0x00000b85, 0x0000047a, 0xf05c8d8f, 0x4f843e49},
- {0xf13bdf22, 0x00000ff7, 0x00000008, 0x816351eb, 0x41f537f6},
- {0x08ecc608, 0x00000d5d, 0x00000098, 0x90492772, 0xf5172204},
- {0x296f52ba, 0x000004f9, 0x00000788, 0x5e5a4896, 0xe01d5b46},
- {0xbe4624c2, 0x00000427, 0x000004ef, 0xcd267b94, 0x7b9069f4},
- {0x906f7c7c, 0x00000a05, 0x0000003f, 0x03fcfc33, 0x7b6ff563},
- {0x8f7b323e, 0x00000458, 0x000004c7, 0xcd4969c8, 0xd4c22ada},
- {0x88d6593d, 0x00000597, 0x000005b5, 0xf199cd3b, 0x5c3e8ca2},
- {0x978a7768, 0x00000268, 0x000001d3, 0xb28c95bd, 0x49a2cc67},
- {0x857a621e, 0x000007a7, 0x000003a8, 0xf4bf84ab, 0xde26f369},
- {0xb0e121ef, 0x000005be, 0x00000644, 0x28747c14, 0x61d4dc6b},
+ {0xffffffff, 0x00000000, 0x00001000, 0x13934bef, 0xd8ddcdc3},
+ {0xfe7328ea, 0x00000763, 0x00000717, 0xed2c0d70, 0xc863aef8},
+ {0x4c40684e, 0x00000721, 0x0000011e, 0xd7f46ccc, 0x173a11c4},
+ {0x6b487f90, 0x00000264, 0x000007bc, 0x759e9939, 0xd6307c56},
+ {0x9f5810db, 0x00000afa, 0x00000255, 0x2685197f, 0x2e5c9201},
+ {0xb15c4755, 0x00000d5b, 0x000002a4, 0xd8fadcb5, 0xf682c4be},
+ {0x06518253, 0x00000ffb, 0x00000004, 0xabee2433, 0x3d8abdf9},
+ {0xd9e71c55, 0x00000a2a, 0x00000259, 0x96682af2, 0x47b4d26c},
+ {0x0c1ae843, 0x00000ce4, 0x0000031b, 0x7b637c43, 0x62b47e8b},
+ {0xec3cd517, 0x000002ff, 0x00000566, 0x5d719a77, 0xff5bc5b7},
+ {0x77828e95, 0x0000067f, 0x0000038f, 0x43ee5b6c, 0x1a0cfacd},
+ {0xec87b4e3, 0x00000d1c, 0x000002e3, 0x2ddd2eee, 0x275118a7},
+ {0x412158bb, 0x00000eee, 0x00000111, 0x67b38ba2, 0xa74ecff5},
+ {0x2e52de3e, 0x00000c4a, 0x000003b5, 0xbcc5d61d, 0xbd800707},
+ {0x6ddaae8b, 0x00000d99, 0x00000266, 0x8b535544, 0xecbde1a1},
+ {0x049b6cb1, 0x000009c5, 0x000000b0, 0xfc22cabc, 0xfb78eb9f},
+ {0x77d4b954, 0x0000028a, 0x000007fa, 0x71d00923, 0x8c116f85},
+ {0x5e192355, 0x00000ac1, 0x000001fa, 0xb966b81a, 0x5aa17bbe},
+ {0x7d80b71d, 0x00000213, 0x000001e0, 0x2bba371a, 0xb5906aa6},
+ {0x01f6f1e4, 0x000001d6, 0x00000395, 0xb7e8a647, 0x3ad112b1},
+ {0x1dfabb13, 0x00000e14, 0x000001eb, 0x53917fba, 0xbaee0339},
+ {0xb00a4449, 0x00000bf6, 0x00000409, 0xedecb577, 0x6f3a3979},
+ {0x7ecd3981, 0x0000083f, 0x0000016b, 0xefef62b9, 0xe3e52eed},
+ {0xf8f330d2, 0x000004be, 0x00000757, 0x9357c9f3, 0x0835bc1b},
+ {0x03c38af2, 0x00000d23, 0x000002dc, 0x360fa8c0, 0x2ca885e6},
+ {0x687bb79b, 0x00000f3d, 0x000000c2, 0x448d3be2, 0x79be2f78},
+ {0x6710f550, 0x000009e9, 0x00000603, 0xdbfd1998, 0x1d25f627},
+ {0x873171d1, 0x00000787, 0x000004d5, 0xab7f1b62, 0xa76a5656},
+ {0x373b1314, 0x00000f0f, 0x000000f0, 0x184098ab, 0xba273974},
+ {0x90fad9cd, 0x00000ead, 0x00000152, 0x23ce52ff, 0xb7bc958c},
+ {0x19676fe7, 0x0000007d, 0x0000070d, 0xf8a76f1e, 0xf882b644},
+ {0x89facd45, 0x000005f3, 0x00000473, 0x4331a006, 0xe9dc1396},
+ {0x6f173747, 0x00000fc3, 0x0000003c, 0xb012f08e, 0xc6b888ee},
+ {0x4b44a106, 0x0000075a, 0x0000008b, 0xf6f7ac38, 0x60cd2b74},
+ {0xb620ad06, 0x00000774, 0x0000017e, 0xd34558e6, 0x3a0a615b},
+ {0x976f21e9, 0x000008d7, 0x0000034a, 0xe533aa3a, 0xa99e60be},
+ {0x687628c0, 0x000006c5, 0x0000061b, 0x3a840b15, 0x9bfcaef2},
+ {0xe24ac108, 0x00000cd0, 0x0000032f, 0x51010ae8, 0x20958672},
+ {0x361c44a3, 0x00000304, 0x00000719, 0xfd7bd481, 0xd70ff2b2},
+ {0xd93ff95e, 0x00000db7, 0x0000008e, 0xcfbbc304, 0xad716acd},
+ {0xed752d12, 0x00000883, 0x00000091, 0x65a6c868, 0x95c71c7b},
+ {0xb4ff4b54, 0x000003d3, 0x000001c1, 0xf82597e7, 0x44b7f99b},
+ {0x111b520f, 0x00000708, 0x000000eb, 0xc3e109f3, 0x71bc01ee},
+ {0x62c806f2, 0x00000ba3, 0x0000045c, 0x874d3a72, 0xc539b753},
+ {0x40d97470, 0x000005e1, 0x0000058d, 0x87a9684f, 0xea6073a5},
+ {0x4312179c, 0x00000056, 0x0000070e, 0x809a00f5, 0x209aea3b},
+ {0x13d5f84c, 0x00000a2d, 0x00000104, 0xf3d27578, 0xe087a8b6},
+ {0x1f302cb2, 0x00000151, 0x00000014, 0x1e162693, 0x95e4b90e},
+ {0xe491db24, 0x00000600, 0x000006f6, 0x7ff09615, 0x77611523},
+ {0xf9a98069, 0x000002ba, 0x000002ad, 0x01af7387, 0xea925faa},
+ {0xe9c477ad, 0x0000015f, 0x00000778, 0x6facf9a0, 0x1130f736},
+ {0x353f32b2, 0x0000087c, 0x00000783, 0x6cc964ea, 0x32459994},
+ {0x78e1b24f, 0x00000650, 0x000006a8, 0xb3bb7c27, 0x5a632f78},
+ {0x61aa400e, 0x00000049, 0x00000254, 0xb8cd1681, 0xdf2652d5},
+ {0xb84b10b0, 0x00000f73, 0x0000008c, 0x406a6450, 0x3619d31b},
+ {0x9fa99c9c, 0x00000a7c, 0x000004d7, 0xfb3d21b4, 0xea31c743},
+ {0x3fc9ebe3, 0x00000cd9, 0x000000d6, 0x43803f9c, 0x1f76a809},
+ {0x529879cd, 0x000002f2, 0x00000595, 0x78b4c6a6, 0x63b9b93f},
+ {0x3a933019, 0x00000516, 0x00000266, 0xdcb45436, 0x8f99c98c},
+ {0x887b4977, 0x00000227, 0x0000038d, 0xc5f7c3d9, 0xaf5e3091},
+ {0x770745de, 0x000008c6, 0x00000739, 0xf69145e8, 0x53d0dce1},
+ {0x28be3b47, 0x00000c46, 0x0000032b, 0x764c028f, 0x106d0905},
+ {0x5013a050, 0x00000cf6, 0x00000309, 0xea8fe164, 0x62180b57},
+ {0x2ec4c9ba, 0x000006e8, 0x0000078d, 0xa35557a9, 0xf44430a4},
+ {0xa9f950c9, 0x00000d33, 0x000002cc, 0x41ea8618, 0x587b4eb3},
+ {0x5b520229, 0x000007b2, 0x00000484, 0x44569f1f, 0x92406c32},
+ {0xd8dcbbfc, 0x0000002f, 0x0000048c, 0xdb88ab8b, 0x13bfe70e},
+ {0x25529792, 0x00000d1d, 0x000002e2, 0x20cda404, 0x19d3b4e4},
+ {0x9f3f6d71, 0x00000238, 0x0000079a, 0x0720443e, 0x3c107021},
+ {0x64121215, 0x000007ff, 0x0000038f, 0x6aacff2c, 0xb82fdc3e},
+ {0xfb6cdde0, 0x00000ef8, 0x00000107, 0xbd43a0f1, 0xab0d3c1d},
+ {0x221c9d6f, 0x000007b6, 0x0000014f, 0xb67f834b, 0x1371ad05},
+ {0x030e1de4, 0x00000836, 0x000004b4, 0x0d67d26a, 0xe2e72df1},
+ {0xb56fa6cf, 0x00000c07, 0x000003f8, 0x60601ac1, 0x039de73e},
+ {0xb55c89f5, 0x0000098e, 0x000001d4, 0x2400efbe, 0xfe39a2bb},
+ {0x5e90b6d5, 0x0000070b, 0x000003ea, 0x3bb5d6ea, 0xf0f794a0},
+ {0x2a7045ae, 0x00000961, 0x00000633, 0xfca89e4b, 0xe66ce41c},
+ {0x8b374ea9, 0x000006ba, 0x00000780, 0xbce036ed, 0x4cb28ef7},
+ {0x8bd90bc9, 0x00000562, 0x00000369, 0xcb26a24b, 0x40236d1d},
+ {0x5b1b1762, 0x000000fd, 0x0000051a, 0x33cdda07, 0xc32e420a},
+ {0xa4153555, 0x0000058f, 0x000005c7, 0xbe50eeca, 0x83a67f35},
+ {0x0be1f931, 0x00000651, 0x00000672, 0x95a25753, 0x88f1aac1},
+ {0xb7e78618, 0x00000a7f, 0x000002bb, 0xe06bcc1c, 0x74274f66},
+ {0x4a9bc41b, 0x00000e51, 0x000001ae, 0x709e8d2c, 0x54eff534},
+ {0xfc359d13, 0x00000440, 0x000002f8, 0x0a58451f, 0x55e9363f},
+ {0x5aa48619, 0x000006d1, 0x00000284, 0x928ead83, 0x31041c06},
+ {0xa609afa8, 0x0000053e, 0x00000272, 0xb048c141, 0x4704efba},
+ {0x3f108afb, 0x00000949, 0x00000150, 0x9a6bb5bc, 0x4e4430c8},
+ {0x79bec2d3, 0x000008ed, 0x00000712, 0x32692d57, 0x11d52a7b},
+ {0x9429e067, 0x00000bc3, 0x0000043c, 0x5295ceff, 0x04640f4d},
+ {0xae58b96a, 0x0000082d, 0x000007d2, 0xc2a681ba, 0xf7ca4a2c},
+ {0x95df24be, 0x00000985, 0x000004c1, 0x3a287765, 0x2c4af003},
+ {0x5e94976f, 0x00000596, 0x000004ed, 0xff00c489, 0x5ae11687},
+ {0xf5e5f1de, 0x00000d31, 0x000002ce, 0x35f28e91, 0x30d47957},
+ {0xa2c219cf, 0x00000a3c, 0x00000374, 0x707d21eb, 0x2a14a255},
+ {0xf21b6ceb, 0x00000919, 0x00000135, 0x0847fb8b, 0xcb8d3b93},
+ {0xaa988728, 0x00000787, 0x00000771, 0x885aeaa4, 0x6531b509},
+ {0xaa5dfaac, 0x000003e5, 0x0000051b, 0x52c48ab7, 0xe43cc5e9},
+ {0x0a053968, 0x00000d2a, 0x000002d5, 0x7a90256d, 0x8004765c},
+ {0x1421dc20, 0x00000eef, 0x00000110, 0x97d6da24, 0x1378f6ff},
+ {0xb47c2166, 0x00000a6a, 0x00000209, 0xcfd6cc52, 0x676e14a5},
+ {0x77dd1955, 0x000000de, 0x00000266, 0xba74bcaa, 0xc71b429c},
+ {0x68a03cc2, 0x0000082f, 0x000007b0, 0x752bd5d8, 0x19ed14aa},
+ {0x0226b0a3, 0x00000a5f, 0x000005a0, 0x82de4970, 0xf654d3ed},
+ {0x637bf3b1, 0x00000d93, 0x0000026c, 0x5c7115cb, 0x3cccb57e},
+ {0x3b120edf, 0x00000c13, 0x000003ec, 0x80d7d20f, 0x92132798},
+ {0xe2456780, 0x000002eb, 0x00000641, 0xc0a5d289, 0x6160c87a},
+ {0x9b2e7125, 0x00000c0c, 0x000003f3, 0xcc15f57e, 0x6f00f637},
+ {0x153033ef, 0x00000787, 0x000006b6, 0x3cde443b, 0xb46caa6e},
+ {0x18458b3f, 0x0000066c, 0x00000561, 0x9a2bd8c6, 0xb6c29121},
+ {0x4ff9d4b9, 0x00000c8f, 0x0000033a, 0xd0ee6d6d, 0xc81cf380},
+ {0xdf84b5d9, 0x00000802, 0x0000029a, 0xdab0d74a, 0xb2464559},
+ {0x81ee15df, 0x000003ce, 0x00000725, 0x9942e2de, 0x4ccf571b},
+ {0x5c768e04, 0x00000afd, 0x00000160, 0x36110831, 0xae0b305a},
+ {0xe5e18094, 0x00000b4b, 0x000000a0, 0xffa3e4a7, 0x6c8a4f09},
+ {0xed7263b6, 0x00000d0d, 0x000002f2, 0xb0006a35, 0x7e04af8c},
+ {0x5bfde7d7, 0x000006fb, 0x00000554, 0xa4193b76, 0xb3a91d12},
+ {0x67f4a743, 0x00000b85, 0x0000047a, 0xf05c8d8f, 0xfb472fdf},
+ {0xf13bdf22, 0x00000ff7, 0x00000008, 0x816351eb, 0xf347f235},
+ {0x08ecc608, 0x00000d5d, 0x00000098, 0x90492772, 0x0b7f1521},
+ {0x296f52ba, 0x000004f9, 0x00000788, 0x5e5a4896, 0x1cc67088},
+ {0xbe4624c2, 0x00000427, 0x000004ef, 0xcd267b94, 0x550caefd},
+ {0x906f7c7c, 0x00000a05, 0x0000003f, 0x03fcfc33, 0x9ed82a02},
+ {0x8f7b323e, 0x00000458, 0x000004c7, 0xcd4969c8, 0x633c38a8},
+ {0x88d6593d, 0x00000597, 0x000005b5, 0xf199cd3b, 0x0491452f},
+ {0x978a7768, 0x00000268, 0x000001d3, 0xb28c95bd, 0x1a42fe61},
+ {0x857a621e, 0x000007a7, 0x000003a8, 0xf4bf84ab, 0xcd0694c6},
+ {0xb0e121ef, 0x000005be, 0x00000644, 0x28747c14, 0xf0510c72},
{0, 0, 0, 0, 0},
};
while (t->length) {
uint32_t be, le;
le = ext2fs_crc32c_le(t->crc, test_buf + t->start, t->length);
- be = ext2fs_crc32c_be(t->crc, test_buf + t->start, t->length);
- if (le != t->crc_le) {
+ be = ext2fs_crc32_be(t->crc, test_buf + t->start, t->length);
+ if (le != t->crc32c_le) {
printf("Test %d LE fails, %x != %x\n",
- (int) (t - test), le, t->crc_le);
+ (int) (t - test), le, t->crc32c_le);
failures++;
}
- if (be != t->crc_be) {
+ if (be != t->crc32_be) {
printf("Test %d BE fails, %x != %x\n",
- (int) (t - test), be, t->crc_be);
+ (int) (t - test), be, t->crc32_be);
failures++;
}
t++;
+/*
+ * There are multiple 16-bit CRC polynomials in common use, but this is
+ * *the* standard CRC-32 polynomial, first popularized by Ethernet.
+ * x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x^1+x^0
+ */
+#define CRCPOLY_LE 0xedb88320
+#define CRCPOLY_BE 0x04c11db7
+
/*
* This is the CRC32c polynomial, as outlined by Castagnoli.
* x^32+x^28+x^27+x^26+x^25+x^23+x^22+x^20+x^19+x^18+x^14+x^13+x^11+x^10+x^9+
* x^8+x^6+x^0
*/
-#define CRCPOLY_LE 0x82F63B78
-#define CRCPOLY_BE 0x1EDC6F41
+#define CRC32C_POLY_LE 0x82F63B78
+#define CRC32C_POLY_BE 0x1EDC6F41
/* How many bits at a time to use. Valid values are 1, 2, 4, 8, 32 and 64. */
/* For less performance-sensitive, use 4 */
#define STATIC static
#endif
+static __u32 ext2fs_mmp_csum(ext2_filsys fs, struct mmp_struct *mmp)
+{
+ int offset = offsetof(struct mmp_struct, mmp_checksum);
+
+ return ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)mmp, offset);
+}
+
+int ext2fs_mmp_csum_verify(ext2_filsys fs, struct mmp_struct *mmp)
+{
+ __u32 calculated;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ calculated = ext2fs_mmp_csum(fs, mmp);
+
+ return ext2fs_le32_to_cpu(mmp->mmp_checksum) == calculated;
+}
+
+errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp)
+{
+ __u32 crc;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ crc = ext2fs_mmp_csum(fs, mmp);
+ mmp->mmp_checksum = ext2fs_cpu_to_le32(crc);
+
+ return 0;
+}
+
+int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb)
+{
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ return sb->s_checksum_type == EXT2_CRC32C_CHKSUM;
+}
+
+static __u32 ext2fs_superblock_csum(ext2_filsys fs EXT2FS_ATTR((unused)),
+ struct ext2_super_block *sb)
+{
+ int offset = offsetof(struct ext2_super_block, s_checksum);
+
+ return ext2fs_crc32c_le(~0, (unsigned char *)sb, offset);
+}
+
+int ext2fs_superblock_csum_verify(ext2_filsys fs, struct ext2_super_block *sb)
+{
+ __u32 calculated;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ calculated = ext2fs_superblock_csum(fs, sb);
+
+ return ext2fs_le32_to_cpu(sb->s_checksum) == calculated;
+}
+
+errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
+ struct ext2_super_block *sb)
+{
+ __u32 crc;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ crc = ext2fs_superblock_csum(fs, sb);
+ sb->s_checksum = ext2fs_cpu_to_le32(crc);
+
+ return 0;
+}
+
+static errcode_t ext2fs_ext_attr_block_csum(ext2_filsys fs,
+ ext2_ino_t inum EXT2FS_ATTR((unused)),
+ blk64_t block,
+ struct ext2_ext_attr_header *hdr,
+ __u32 *crc)
+{
+ char *buf = (char *)hdr;
+ __u32 old_crc = hdr->h_checksum;
+
+ hdr->h_checksum = 0;
+ block = ext2fs_cpu_to_le64(block);
+ *crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)&block,
+ sizeof(block));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)buf, fs->blocksize);
+ hdr->h_checksum = old_crc;
+
+ return 0;
+}
+
+int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ blk64_t block,
+ struct ext2_ext_attr_header *hdr)
+{
+ __u32 calculated;
+ errcode_t retval;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ retval = ext2fs_ext_attr_block_csum(fs, inum, block, hdr, &calculated);
+ if (retval)
+ return 0;
+
+ return ext2fs_le32_to_cpu(hdr->h_checksum) == calculated;
+}
+
+errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ blk64_t block,
+ struct ext2_ext_attr_header *hdr)
+{
+ errcode_t retval;
+ __u32 crc;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ retval = ext2fs_ext_attr_block_csum(fs, inum, block, hdr, &crc);
+ if (retval)
+ return retval;
+ hdr->h_checksum = ext2fs_cpu_to_le32(crc);
+ return 0;
+}
+
+static __u16 do_nothing16(__u16 x)
+{
+ return x;
+}
+
+static __u16 disk_to_host16(__u16 x)
+{
+ return ext2fs_le16_to_cpu(x);
+}
+
+static errcode_t __get_dx_countlimit(ext2_filsys fs,
+ struct ext2_dir_entry *dirent,
+ struct ext2_dx_countlimit **cc,
+ int *offset,
+ int need_swab)
+{
+ struct ext2_dir_entry *dp;
+ struct ext2_dx_root_info *root;
+ struct ext2_dx_countlimit *c;
+ int count_offset, max_sane_entries;
+ unsigned int rec_len;
+ __u16 (*translate)(__u16) = (need_swab ? disk_to_host16 : do_nothing16);
+
+ rec_len = translate(dirent->rec_len);
+
+ if (rec_len == fs->blocksize && translate(dirent->name_len) == 0)
+ count_offset = 8;
+ else if (rec_len == 12) {
+ dp = (struct ext2_dir_entry *)(((char *)dirent) + rec_len);
+ rec_len = translate(dp->rec_len);
+ if (rec_len != fs->blocksize - 12)
+ return EXT2_ET_DB_NOT_FOUND;
+ root = (struct ext2_dx_root_info *)(((char *)dp + 12));
+ if (root->reserved_zero ||
+ root->info_length != sizeof(struct ext2_dx_root_info))
+ return EXT2_ET_DB_NOT_FOUND;
+ count_offset = 32;
+ } else
+ return EXT2_ET_DB_NOT_FOUND;
+
+ c = (struct ext2_dx_countlimit *)(((char *)dirent) + count_offset);
+ max_sane_entries = (fs->blocksize - count_offset) /
+ sizeof(struct ext2_dx_entry);
+ if (ext2fs_le16_to_cpu(c->limit) > max_sane_entries ||
+ ext2fs_le16_to_cpu(c->count) > max_sane_entries)
+ return EXT2_ET_DIR_NO_SPACE_FOR_CSUM;
+
+ if (offset)
+ *offset = count_offset;
+ if (cc)
+ *cc = c;
+
+ return 0;
+}
+
+errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
+ struct ext2_dir_entry *dirent,
+ struct ext2_dx_countlimit **cc,
+ int *offset)
+{
+ return __get_dx_countlimit(fs, dirent, cc, offset, 0);
+}
+
+void ext2fs_initialize_dirent_tail(ext2_filsys fs,
+ struct ext2_dir_entry_tail *t)
+{
+ memset(t, 0, sizeof(struct ext2_dir_entry_tail));
+ ext2fs_set_rec_len(fs, sizeof(struct ext2_dir_entry_tail),
+ (struct ext2_dir_entry *)t);
+ t->det_reserved_name_len = EXT2_DIR_NAME_LEN_CSUM;
+}
+
+static errcode_t __get_dirent_tail(ext2_filsys fs,
+ struct ext2_dir_entry *dirent,
+ struct ext2_dir_entry_tail **tt,
+ int need_swab)
+{
+ struct ext2_dir_entry *d;
+ void *top;
+ struct ext2_dir_entry_tail *t;
+ unsigned int rec_len;
+ errcode_t retval = 0;
+ __u16 (*translate)(__u16) = (need_swab ? disk_to_host16 : do_nothing16);
+
+ d = dirent;
+ top = EXT2_DIRENT_TAIL(dirent, fs->blocksize);
+
+ rec_len = translate(d->rec_len);
+ while (rec_len && !(rec_len & 0x3)) {
+ d = (struct ext2_dir_entry *)(((char *)d) + rec_len);
+ if ((void *)d >= top)
+ break;
+ rec_len = translate(d->rec_len);
+ }
+
+ if (d != top)
+ return EXT2_ET_DIR_NO_SPACE_FOR_CSUM;
+
+ t = (struct ext2_dir_entry_tail *)d;
+ if (t->det_reserved_zero1 ||
+ translate(t->det_rec_len) != sizeof(struct ext2_dir_entry_tail) ||
+ translate(t->det_reserved_name_len) != EXT2_DIR_NAME_LEN_CSUM)
+ return EXT2_ET_DIR_NO_SPACE_FOR_CSUM;
+
+ if (tt)
+ *tt = t;
+ return retval;
+}
+
+int ext2fs_dirent_has_tail(ext2_filsys fs, struct ext2_dir_entry *dirent)
+{
+ return __get_dirent_tail(fs, dirent, NULL, 0) == 0;
+}
+
+static errcode_t ext2fs_dirent_csum(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent, __u32 *crc,
+ int size)
+{
+ errcode_t retval;
+ char *buf = (char *)dirent;
+ __u32 gen;
+ struct ext2_inode inode;
+
+ retval = ext2fs_read_inode(fs, inum, &inode);
+ if (retval)
+ return retval;
+
+ inum = ext2fs_cpu_to_le32(inum);
+ gen = ext2fs_cpu_to_le32(inode.i_generation);
+ *crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)&inum,
+ sizeof(inum));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)&gen, sizeof(gen));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)buf, size);
+
+ return 0;
+}
+
+int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent)
+{
+ errcode_t retval;
+ __u32 calculated;
+ struct ext2_dir_entry_tail *t;
+
+ retval = __get_dirent_tail(fs, dirent, &t, 1);
+ if (retval)
+ return 1;
+
+ /*
+ * The checksum field is overlaid with the dirent->name field
+ * so the swapfs.c functions won't change the endianness.
+ */
+ retval = ext2fs_dirent_csum(fs, inum, dirent, &calculated,
+ (char *)t - (char *)dirent);
+ if (retval)
+ return 0;
+ return ext2fs_le32_to_cpu(t->det_checksum) == calculated;
+}
+
+static errcode_t ext2fs_dirent_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent)
+{
+ errcode_t retval;
+ __u32 crc;
+ struct ext2_dir_entry_tail *t;
+
+ retval = __get_dirent_tail(fs, dirent, &t, 1);
+ if (retval)
+ return retval;
+
+ /* swapfs.c functions don't change the checksum endianness */
+ retval = ext2fs_dirent_csum(fs, inum, dirent, &crc,
+ (char *)t - (char *)dirent);
+ if (retval)
+ return retval;
+ t->det_checksum = ext2fs_cpu_to_le32(crc);
+ return 0;
+}
+
+static errcode_t ext2fs_dx_csum(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent,
+ __u32 *crc, int count_offset, int count,
+ struct ext2_dx_tail *t)
+{
+ errcode_t retval;
+ char *buf = (char *)dirent;
+ int size;
+ __u32 old_csum, gen;
+ struct ext2_inode inode;
+
+ size = count_offset + (count * sizeof(struct ext2_dx_entry));
+ old_csum = t->dt_checksum;
+ t->dt_checksum = 0;
+
+ retval = ext2fs_read_inode(fs, inum, &inode);
+ if (retval)
+ return retval;
+
+ inum = ext2fs_cpu_to_le32(inum);
+ gen = ext2fs_cpu_to_le32(inode.i_generation);
+ *crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)&inum,
+ sizeof(inum));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)&gen, sizeof(gen));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)buf, size);
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)t,
+ sizeof(struct ext2_dx_tail));
+ t->dt_checksum = old_csum;
+
+ return 0;
+}
+
+static int ext2fs_dx_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent)
+{
+ __u32 calculated;
+ errcode_t retval;
+ struct ext2_dx_countlimit *c;
+ struct ext2_dx_tail *t;
+ int count_offset, limit, count;
+
+ retval = __get_dx_countlimit(fs, dirent, &c, &count_offset, 1);
+ if (retval)
+ return 1;
+ limit = ext2fs_le16_to_cpu(c->limit);
+ count = ext2fs_le16_to_cpu(c->count);
+ if (count_offset + (limit * sizeof(struct ext2_dx_entry)) >
+ fs->blocksize - sizeof(struct ext2_dx_tail))
+ return 0;
+ /* htree structs are accessed in LE order */
+ t = (struct ext2_dx_tail *)(((struct ext2_dx_entry *)c) + limit);
+ retval = ext2fs_dx_csum(fs, inum, dirent, &calculated, count_offset,
+ count, t);
+ if (retval)
+ return 0;
+
+ return ext2fs_le32_to_cpu(t->dt_checksum) == calculated;
+}
+
+static errcode_t ext2fs_dx_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent)
+{
+ __u32 crc;
+ errcode_t retval = 0;
+ struct ext2_dx_countlimit *c;
+ struct ext2_dx_tail *t;
+ int count_offset, limit, count;
+
+ retval = __get_dx_countlimit(fs, dirent, &c, &count_offset, 1);
+ if (retval)
+ return retval;
+ limit = ext2fs_le16_to_cpu(c->limit);
+ count = ext2fs_le16_to_cpu(c->count);
+ if (count_offset + (limit * sizeof(struct ext2_dx_entry)) >
+ fs->blocksize - sizeof(struct ext2_dx_tail))
+ return EXT2_ET_DIR_NO_SPACE_FOR_CSUM;
+ t = (struct ext2_dx_tail *)(((struct ext2_dx_entry *)c) + limit);
+
+ /* htree structs are accessed in LE order */
+ retval = ext2fs_dx_csum(fs, inum, dirent, &crc, count_offset, count, t);
+ if (retval)
+ return retval;
+ t->dt_checksum = ext2fs_cpu_to_le32(crc);
+ return retval;
+}
+
+int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent)
+{
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ if (__get_dirent_tail(fs, dirent, NULL, 1) == 0)
+ return ext2fs_dirent_csum_verify(fs, inum, dirent);
+ if (__get_dx_countlimit(fs, dirent, NULL, NULL, 1) == 0)
+ return ext2fs_dx_csum_verify(fs, inum, dirent);
+
+ return 0;
+}
+
+errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent)
+{
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ if (__get_dirent_tail(fs, dirent, NULL, 1) == 0)
+ return ext2fs_dirent_csum_set(fs, inum, dirent);
+ if (__get_dx_countlimit(fs, dirent, NULL, NULL, 1) == 0)
+ return ext2fs_dx_csum_set(fs, inum, dirent);
+
+ if (fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)
+ return 0;
+ return EXT2_ET_DIR_NO_SPACE_FOR_CSUM;
+}
+
+#define EXT3_EXTENT_TAIL_OFFSET(hdr) (sizeof(struct ext3_extent_header) + \
+ (sizeof(struct ext3_extent) * ext2fs_le16_to_cpu((hdr)->eh_max)))
+
+static struct ext3_extent_tail *get_extent_tail(struct ext3_extent_header *h)
+{
+ return (struct ext3_extent_tail *)(((char *)h) +
+ EXT3_EXTENT_TAIL_OFFSET(h));
+}
+
+static errcode_t ext2fs_extent_block_csum(ext2_filsys fs, ext2_ino_t inum,
+ struct ext3_extent_header *eh,
+ __u32 *crc)
+{
+ int size;
+ __u32 gen;
+ errcode_t retval;
+ struct ext2_inode inode;
+
+ size = EXT3_EXTENT_TAIL_OFFSET(eh) + offsetof(struct ext3_extent_tail,
+ et_checksum);
+
+ retval = ext2fs_read_inode(fs, inum, &inode);
+ if (retval)
+ return retval;
+ inum = ext2fs_cpu_to_le32(inum);
+ gen = ext2fs_cpu_to_le32(inode.i_generation);
+ *crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)&inum,
+ sizeof(inum));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)&gen, sizeof(gen));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)eh, size);
+
+ return 0;
+}
+
+int ext2fs_extent_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext3_extent_header *eh)
+{
+ errcode_t retval;
+ __u32 provided, calculated;
+ struct ext3_extent_tail *t = get_extent_tail(eh);
+
+ /*
+ * The extent tree structures are accessed in LE order, so we must
+ * swap the checksum bytes here.
+ */
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ provided = ext2fs_le32_to_cpu(t->et_checksum);
+ retval = ext2fs_extent_block_csum(fs, inum, eh, &calculated);
+ if (retval)
+ return 0;
+
+ return provided == calculated;
+}
+
+errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ struct ext3_extent_header *eh)
+{
+ errcode_t retval;
+ __u32 crc;
+ struct ext3_extent_tail *t = get_extent_tail(eh);
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ /*
+ * The extent tree structures are accessed in LE order, so we must
+ * swap the checksum bytes here.
+ */
+ retval = ext2fs_extent_block_csum(fs, inum, eh, &crc);
+ if (retval)
+ return retval;
+ t->et_checksum = ext2fs_cpu_to_le32(crc);
+ return retval;
+}
+
+int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size)
+{
+ struct ext4_group_desc *gdp = (struct ext4_group_desc *)
+ ext2fs_group_desc(fs, fs->group_desc, group);
+ __u32 provided, calculated;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+ provided = gdp->bg_inode_bitmap_csum_lo;
+ calculated = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)bitmap,
+ size);
+ if (fs->super->s_desc_size >= EXT4_BG_INODE_BITMAP_CSUM_HI_END)
+ provided |= (__u32)gdp->bg_inode_bitmap_csum_hi << 16;
+ else
+ calculated &= 0xFFFF;
+
+ return provided == calculated;
+}
+
+errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size)
+{
+ __u32 crc;
+ struct ext4_group_desc *gdp = (struct ext4_group_desc *)
+ ext2fs_group_desc(fs, fs->group_desc, group);
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)bitmap, size);
+ gdp->bg_inode_bitmap_csum_lo = crc & 0xFFFF;
+ if (fs->super->s_desc_size >= EXT4_BG_INODE_BITMAP_CSUM_HI_END)
+ gdp->bg_inode_bitmap_csum_hi = crc >> 16;
+
+ return 0;
+}
+
+int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size)
+{
+ struct ext4_group_desc *gdp = (struct ext4_group_desc *)
+ ext2fs_group_desc(fs, fs->group_desc, group);
+ __u32 provided, calculated;
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+ provided = gdp->bg_block_bitmap_csum_lo;
+ calculated = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)bitmap,
+ size);
+ if (fs->super->s_desc_size >= EXT4_BG_BLOCK_BITMAP_CSUM_HI_LOCATION)
+ provided |= (__u32)gdp->bg_block_bitmap_csum_hi << 16;
+ else
+ calculated &= 0xFFFF;
+
+ return provided == calculated;
+}
+
+errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size)
+{
+ __u32 crc;
+ struct ext4_group_desc *gdp = (struct ext4_group_desc *)
+ ext2fs_group_desc(fs, fs->group_desc, group);
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)bitmap, size);
+ gdp->bg_block_bitmap_csum_lo = crc & 0xFFFF;
+ if (fs->super->s_desc_size >= EXT4_BG_BLOCK_BITMAP_CSUM_HI_LOCATION)
+ gdp->bg_block_bitmap_csum_hi = crc >> 16;
+
+ return 0;
+}
+
+static errcode_t ext2fs_inode_csum(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_inode_large *inode,
+ __u32 *crc, int has_hi)
+{
+ __u32 gen;
+ struct ext2_inode_large *desc = inode;
+ size_t size = fs->super->s_inode_size;
+ __u16 old_lo;
+ __u16 old_hi = 0;
+
+ old_lo = inode->i_checksum_lo;
+ inode->i_checksum_lo = 0;
+ if (has_hi) {
+ old_hi = inode->i_checksum_hi;
+ inode->i_checksum_hi = 0;
+ }
+
+ inum = ext2fs_cpu_to_le32(inum);
+ gen = inode->i_generation;
+ *crc = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)&inum,
+ sizeof(inum));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)&gen, sizeof(gen));
+ *crc = ext2fs_crc32c_le(*crc, (unsigned char *)desc, size);
+
+ inode->i_checksum_lo = old_lo;
+ if (has_hi)
+ inode->i_checksum_hi = old_hi;
+ return 0;
+}
+
+int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_inode_large *inode)
+{
+ errcode_t retval;
+ __u32 provided, calculated;
+ unsigned int i, has_hi;
+ char *cp;
+
+ if (fs->super->s_creator_os != EXT2_OS_LINUX ||
+ !EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 1;
+
+ has_hi = (EXT2_INODE_SIZE(fs->super) > EXT2_GOOD_OLD_INODE_SIZE &&
+ inode->i_extra_isize >= EXT4_INODE_CSUM_HI_EXTRA_END);
+
+ provided = ext2fs_le16_to_cpu(inode->i_checksum_lo);
+ retval = ext2fs_inode_csum(fs, inum, inode, &calculated, has_hi);
+ if (retval)
+ return 0;
+ if (has_hi) {
+ __u32 hi = ext2fs_le16_to_cpu(inode->i_checksum_hi);
+ provided |= hi << 16;
+ } else
+ calculated &= 0xFFFF;
+
+ if (provided == calculated)
+ return 1;
+
+ /*
+ * If the checksum didn't match, it's possible it was due to
+ * the inode being all zero's. It's unlikely this is the
+ * case, but it can happen. So check for it here. (We only
+ * check the base inode since that's good enough, and it's not
+ * worth the bother to figure out how much of the extended
+ * inode, if any, is present.)
+ */
+ for (cp = (char *) inode, i = 0;
+ i < sizeof(struct ext2_inode);
+ cp++, i++)
+ if (*cp)
+ return 0;
+ return 1; /* Inode must have been all zero's */
+}
+
+errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_inode_large *inode)
+{
+ errcode_t retval;
+ __u32 crc;
+ int has_hi;
+
+ if (fs->super->s_creator_os != EXT2_OS_LINUX ||
+ !EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return 0;
+
+ has_hi = (EXT2_INODE_SIZE(fs->super) > EXT2_GOOD_OLD_INODE_SIZE &&
+ inode->i_extra_isize >= EXT4_INODE_CSUM_HI_EXTRA_END);
+
+ retval = ext2fs_inode_csum(fs, inum, inode, &crc, has_hi);
+ if (retval)
+ return retval;
+ inode->i_checksum_lo = ext2fs_cpu_to_le16(crc & 0xFFFF);
+ if (has_hi)
+ inode->i_checksum_hi = ext2fs_cpu_to_le16(crc >> 16);
+ return 0;
+}
+
__u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group)
{
struct ext2_group_desc *desc = ext2fs_group_desc(fs, fs->group_desc,
group);
- size_t size = EXT2_DESC_SIZE(fs->super);
+ size_t offset, size = EXT2_DESC_SIZE(fs->super);
__u16 crc = 0;
-
- if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
- size_t offset = offsetof(struct ext2_group_desc, bg_checksum);
-
#ifdef WORDS_BIGENDIAN
- struct ext4_group_desc swabdesc;
- size_t save_size = size;
- const size_t ext4_bg_size = sizeof(struct ext4_group_desc);
- struct ext2_group_desc *save_desc = desc;
-
- /* Have to swab back to little-endian to do the checksum */
- if (size > ext4_bg_size)
- size = ext4_bg_size;
- memcpy(&swabdesc, desc, size);
- ext2fs_swap_group_desc2(fs,
- (struct ext2_group_desc *) &swabdesc);
- desc = (struct ext2_group_desc *) &swabdesc;
-
- group = ext2fs_swab32(group);
+ struct ext4_group_desc swabdesc;
+ size_t save_size = size;
+ const size_t ext4_bg_size = sizeof(struct ext4_group_desc);
+ struct ext2_group_desc *save_desc = desc;
+
+ /* Have to swab back to little-endian to do the checksum */
+ if (size > ext4_bg_size)
+ size = ext4_bg_size;
+ memcpy(&swabdesc, desc, size);
+ ext2fs_swap_group_desc2(fs, (struct ext2_group_desc *) &swabdesc);
+ desc = (struct ext2_group_desc *) &swabdesc;
+ group = ext2fs_swab32(group);
#endif
- crc = ext2fs_crc16(~0, fs->super->s_uuid,
- sizeof(fs->super->s_uuid));
- crc = ext2fs_crc16(crc, &group, sizeof(group));
- crc = ext2fs_crc16(crc, desc, offset);
- offset += sizeof(desc->bg_checksum); /* skip checksum */
- /* for checksum of struct ext4_group_desc do the rest...*/
- if (offset < size) {
- crc = ext2fs_crc16(crc, (char *)desc + offset,
- size - offset);
- }
+
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ /* new metadata csum code */
+ __u16 old_crc;
+ __u32 crc32;
+
+ old_crc = desc->bg_checksum;
+ desc->bg_checksum = 0;
+ crc32 = ext2fs_crc32c_le(fs->csum_seed, (unsigned char *)&group,
+ sizeof(group));
+ crc32 = ext2fs_crc32c_le(crc32, (unsigned char *)desc,
+ size);
+ desc->bg_checksum = old_crc;
#ifdef WORDS_BIGENDIAN
- /*
- * If the size of the bg descriptor is greater than 64
- * bytes, which is the size of the traditional ext4 bg
- * descriptor, checksum the rest of the descriptor here
- */
if (save_size > ext4_bg_size)
- crc = ext2fs_crc16(crc,
+ crc32 = ext2fs_crc32c_le(crc32,
(char *)save_desc + ext4_bg_size,
save_size - ext4_bg_size);
#endif
+ crc = crc32 & 0xFFFF;
+ goto out;
+ }
+
+ /* old crc16 code */
+ offset = offsetof(struct ext2_group_desc, bg_checksum);
+ crc = ext2fs_crc16(~0, fs->super->s_uuid,
+ sizeof(fs->super->s_uuid));
+ crc = ext2fs_crc16(crc, &group, sizeof(group));
+ crc = ext2fs_crc16(crc, desc, offset);
+ offset += sizeof(desc->bg_checksum); /* skip checksum */
+ /* for checksum of struct ext4_group_desc do the rest...*/
+ if (offset < size) {
+ crc = ext2fs_crc16(crc, (char *)desc + offset,
+ size - offset);
}
+#ifdef WORDS_BIGENDIAN
+ /*
+ * If the size of the bg descriptor is greater than 64
+ * bytes, which is the size of the traditional ext4 bg
+ * descriptor, checksum the rest of the descriptor here
+ */
+ if (save_size > ext4_bg_size)
+ crc = ext2fs_crc16(crc, (char *)save_desc + ext4_bg_size,
+ save_size - ext4_bg_size);
+#endif
+out:
return crc;
}
int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group)
{
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM) &&
+ if (ext2fs_has_group_desc_csum(fs) &&
(ext2fs_bg_checksum(fs, group) !=
ext2fs_group_desc_csum(fs, group)))
return 0;
void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group)
{
- if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ if (!ext2fs_has_group_desc_csum(fs))
return;
/* ext2fs_bg_checksum_set() sets the actual checksum field but
if (!fs->inode_map)
return EXT2_ET_NO_INODE_BITMAP;
- if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ if (!ext2fs_has_group_desc_csum(fs))
return 0;
for (i = 0; i < fs->group_desc_count; i++) {
static EXT2_QSORT_TYPE dir_block_cmp2(const void *a, const void *b);
static EXT2_QSORT_TYPE (*sortfunc32)(const void *a, const void *b);
-/*
- * Returns the number of directories in the filesystem as reported by
- * the group descriptors. Of course, the group descriptors could be
- * wrong!
- */
-errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs)
-{
- dgrp_t i;
- ext2_ino_t num_dirs, max_dirs;
-
- EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
-
- num_dirs = 0;
- max_dirs = fs->super->s_inodes_per_group;
- for (i = 0; i < fs->group_desc_count; i++) {
- if (ext2fs_bg_used_dirs_count(fs, i) > max_dirs)
- num_dirs += max_dirs / 8;
- else
- num_dirs += ext2fs_bg_used_dirs_count(fs, i);
- }
- if (num_dirs > fs->super->s_inodes_count)
- num_dirs = fs->super->s_inodes_count;
-
- *ret_num_dirs = num_dirs;
-
- return 0;
-}
-
/*
* helper function for making a new directory block list (for
* initialize and copy).
static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info,
void *priv_data)
{
+ struct ext2_inode inode;
struct dir_context *ctx;
int ret;
ctx->dir = db_info->ino;
ctx->errcode = 0;
- ret = ext2fs_process_dir_block(fs, &db_info->blk,
- db_info->blockcnt, 0, 0, priv_data);
+ ctx->errcode = ext2fs_read_inode(fs, ctx->dir, &inode);
+ if (ctx->errcode)
+ return DBLIST_ABORT;
+ if (inode.i_flags & EXT4_INLINE_DATA_FL)
+ ret = ext2fs_inline_data_dir_iterate(fs, ctx->dir, ctx);
+ else
+ ret = ext2fs_process_dir_block(fs, &db_info->blk,
+ db_info->blockcnt, 0, 0,
+ priv_data);
if ((ret & BLOCK_ABORT) && !ctx->errcode)
return DBLIST_ABORT;
return 0;
offset += rec_len;
if ((rec_len < 8) ||
((rec_len % 4) != 0) ||
- ((((unsigned) dirent->name_len & 0xFF)+8) > rec_len))
+ ((ext2fs_dirent_name_len(dirent)+8) > rec_len))
return 0;
}
return (offset == final_offset);
ext2fs_process_dir_block, &ctx);
if (!block_buf)
ext2fs_free_mem(&ctx.buf);
+ if (retval == EXT2_ET_INLINE_DATA_CANT_ITERATE) {
+ (void) ext2fs_inline_data_dir_iterate(fs, dir, &ctx);
+ retval = 0;
+ }
if (retval)
return retval;
return ctx.errcode;
int ret = 0;
int changed = 0;
int do_abort = 0;
- unsigned int rec_len, size;
+ unsigned int rec_len, size, buflen;
int entry;
struct ext2_dir_entry *dirent;
+ int csum_size = 0;
+ int inline_data;
+ errcode_t retval = 0;
if (blockcnt < 0)
return 0;
entry = blockcnt ? DIRENT_OTHER_FILE : DIRENT_DOT_FILE;
- ctx->errcode = ext2fs_read_dir_block3(fs, *blocknr, ctx->buf, 0);
- if (ctx->errcode)
- return BLOCK_ABORT;
+ /* If a dir has inline data, we don't need to read block */
+ inline_data = !!(ctx->flags & DIRENT_FLAG_INCLUDE_INLINE_DATA);
+ if (!inline_data) {
+ ctx->errcode = ext2fs_read_dir_block4(fs, *blocknr, ctx->buf, 0,
+ ctx->dir);
+ if (ctx->errcode)
+ return BLOCK_ABORT;
+ /* If we handle a normal dir, we traverse the entire block */
+ buflen = fs->blocksize;
+ } else {
+ buflen = ctx->buflen;
+ }
+
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dir_entry_tail);
- while (offset < fs->blocksize) {
+ while (offset < buflen) {
dirent = (struct ext2_dir_entry *) (ctx->buf + offset);
if (ext2fs_get_rec_len(fs, dirent, &rec_len))
return BLOCK_ABORT;
- if (((offset + rec_len) > fs->blocksize) ||
+ if (((offset + rec_len) > buflen) ||
(rec_len < 8) ||
((rec_len % 4) != 0) ||
- ((((unsigned) dirent->name_len & 0xFF)+8) > rec_len)) {
+ ((ext2fs_dirent_name_len(dirent)+8) > rec_len)) {
ctx->errcode = EXT2_ET_DIR_CORRUPTED;
return BLOCK_ABORT;
}
- if (!dirent->inode &&
- !(ctx->flags & DIRENT_FLAG_INCLUDE_EMPTY))
- goto next;
+ if (!dirent->inode) {
+ /*
+ * We just need to check metadata_csum when this
+ * dir hasn't inline data. That means that 'buflen'
+ * should be blocksize.
+ */
+ if (!inline_data &&
+ (offset == buflen - csum_size) &&
+ (dirent->rec_len == csum_size) &&
+ (dirent->name_len == EXT2_DIR_NAME_LEN_CSUM)) {
+ if (!(ctx->flags & DIRENT_FLAG_INCLUDE_CSUM))
+ goto next;
+ entry = DIRENT_CHECKSUM;
+ } else if (!(ctx->flags & DIRENT_FLAG_INCLUDE_EMPTY))
+ goto next;
+ }
ret = (ctx->func)(ctx->dir,
(next_real_entry > offset) ?
DIRENT_DELETED_FILE : entry,
dirent, offset,
- fs->blocksize, ctx->buf,
+ buflen, ctx->buf,
ctx->priv_data);
if (entry < DIRENT_OTHER_FILE)
entry++;
next_real_entry += rec_len;
if (ctx->flags & DIRENT_FLAG_INCLUDE_REMOVED) {
- size = ((dirent->name_len & 0xFF) + 11) & ~3;
+ size = (ext2fs_dirent_name_len(dirent) + 11) & ~3;
if (rec_len != size) {
unsigned int final_offset;
}
if (changed) {
- ctx->errcode = ext2fs_write_dir_block3(fs, *blocknr, ctx->buf,
- 0);
- if (ctx->errcode)
- return BLOCK_ABORT;
+ if (!inline_data) {
+ ctx->errcode = ext2fs_write_dir_block4(fs, *blocknr,
+ ctx->buf,
+ 0, ctx->dir);
+ if (ctx->errcode)
+ return BLOCK_ABORT;
+ } else {
+ /*
+ * return BLOCK_INLINE_DATA_CHANGED to notify caller
+ * that inline data has been changed.
+ */
+ retval = BLOCK_INLINE_DATA_CHANGED;
+ }
}
if (do_abort)
- return BLOCK_ABORT;
- return 0;
+ return retval | BLOCK_ABORT;
+ return retval;
}
-
#include "ext2_fs.h"
#include "ext2fs.h"
-errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
- void *buf, int flags EXT2FS_ATTR((unused)))
+errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
+ void *buf, int flags EXT2FS_ATTR((unused)),
+ ext2_ino_t ino)
{
errcode_t retval;
- char *p, *end;
- struct ext2_dir_entry *dirent;
- unsigned int name_len, rec_len;
-
+ int corrupt = 0;
retval = io_channel_read_blk64(fs->io, block, 1, buf);
if (retval)
return retval;
- p = (char *) buf;
- end = (char *) buf + fs->blocksize;
- while (p < end-8) {
- dirent = (struct ext2_dir_entry *) p;
-#ifdef WORDS_BIGENDIAN
- dirent->inode = ext2fs_swab32(dirent->inode);
- dirent->rec_len = ext2fs_swab16(dirent->rec_len);
- dirent->name_len = ext2fs_swab16(dirent->name_len);
-#endif
- name_len = dirent->name_len;
+ if (!(fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_dir_block_csum_verify(fs, ino,
+ (struct ext2_dir_entry *)buf))
+ corrupt = 1;
+
#ifdef WORDS_BIGENDIAN
- if (flags & EXT2_DIRBLOCK_V2_STRUCT)
- dirent->name_len = ext2fs_swab16(dirent->name_len);
+ retval = ext2fs_dirent_swab_in(fs, buf, flags);
#endif
- if ((retval = ext2fs_get_rec_len(fs, dirent, &rec_len)) != 0)
- return retval;
- if ((rec_len < 8) || (rec_len % 4)) {
- rec_len = 8;
- retval = EXT2_ET_DIR_CORRUPTED;
- } else if (((name_len & 0xFF) + 8) > rec_len)
- retval = EXT2_ET_DIR_CORRUPTED;
- p += rec_len;
- }
+ if (!retval && corrupt)
+ retval = EXT2_ET_DIR_CSUM_INVALID;
return retval;
}
+errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
+ void *buf, int flags EXT2FS_ATTR((unused)))
+{
+ return ext2fs_read_dir_block4(fs, block, buf, flags, 0);
+}
+
errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
void *buf, int flags EXT2FS_ATTR((unused)))
{
}
-errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
- void *inbuf, int flags EXT2FS_ATTR((unused)))
+errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
+ void *inbuf, int flags EXT2FS_ATTR((unused)),
+ ext2_ino_t ino)
{
-#ifdef WORDS_BIGENDIAN
errcode_t retval;
- char *p, *end;
- char *buf = 0;
- unsigned int rec_len;
- struct ext2_dir_entry *dirent;
+ char *buf = inbuf;
+#ifdef WORDS_BIGENDIAN
retval = ext2fs_get_mem(fs->blocksize, &buf);
if (retval)
return retval;
memcpy(buf, inbuf, fs->blocksize);
- p = buf;
- end = buf + fs->blocksize;
- while (p < end) {
- dirent = (struct ext2_dir_entry *) p;
- if ((retval = ext2fs_get_rec_len(fs, dirent, &rec_len)) != 0)
- return retval;
- if ((rec_len < 8) ||
- (rec_len % 4)) {
- ext2fs_free_mem(&buf);
- return (EXT2_ET_DIR_CORRUPTED);
- }
- p += rec_len;
- dirent->inode = ext2fs_swab32(dirent->inode);
- dirent->rec_len = ext2fs_swab16(dirent->rec_len);
- dirent->name_len = ext2fs_swab16(dirent->name_len);
-
- if (flags & EXT2_DIRBLOCK_V2_STRUCT)
- dirent->name_len = ext2fs_swab16(dirent->name_len);
- }
+ retval = ext2fs_dirent_swab_out(fs, buf, flags);
+ if (retval)
+ return retval;
+#endif
+ retval = ext2fs_dir_block_csum_set(fs, ino,
+ (struct ext2_dir_entry *)buf);
+ if (retval)
+ goto out;
+
retval = io_channel_write_blk64(fs->io, block, 1, buf);
+
+out:
+#ifdef WORDS_BIGENDIAN
ext2fs_free_mem(&buf);
- return retval;
-#else
- return io_channel_write_blk64(fs->io, block, 1, (char *) inbuf);
#endif
+ return retval;
+}
+
+errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
+ void *inbuf, int flags EXT2FS_ATTR((unused)))
+{
+ return ext2fs_write_dir_block4(fs, block, inbuf, flags, 0);
}
errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
#include "ext2_fs.h"
#include "ext2fs.h"
+#include "ext2fsP.h"
struct expand_dir_struct {
int done;
int newblocks;
blk64_t goal;
errcode_t err;
+ ext2_ino_t dir;
};
static int expand_dir_proc(ext2_filsys fs,
return BLOCK_ABORT;
}
es->done = 1;
- retval = ext2fs_write_dir_block(fs, new_blk, block);
+ retval = ext2fs_write_dir_block4(fs, new_blk, block, 0,
+ es->dir);
} else {
retval = ext2fs_get_mem(fs->blocksize, &block);
if (retval) {
es.err = 0;
es.goal = 0;
es.newblocks = 0;
+ es.dir = dir;
retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_APPEND,
0, expand_dir_proc, &es);
+ if (retval == EXT2_ET_INLINE_DATA_CANT_ITERATE)
+ return ext2fs_inline_data_expand(fs, dir);
if (es.err)
return es.err;
ec EXT2_ET_FILE_EXISTS,
"Ext2 file already exists"
+ec EXT2_ET_BLOCK_BITMAP_CSUM_INVALID,
+ "Block bitmap checksum does not match bitmap"
+
+ec EXT2_ET_INLINE_DATA_CANT_ITERATE,
+ "Cannot iterate data blocks of an inode containing inline data"
+
+ec EXT2_ET_EA_BAD_NAME_LEN,
+ "Extended attribute has an invalid name length"
+
+ec EXT2_ET_EA_BAD_VALUE_SIZE,
+ "Extended attribute has an invalid value length"
+
+ec EXT2_ET_BAD_EA_HASH,
+ "Extended attribute has an incorrect hash"
+
+ec EXT2_ET_BAD_EA_HEADER,
+ "Extended attribute block has a bad header"
+
+ec EXT2_ET_EA_KEY_NOT_FOUND,
+ "Extended attribute key not found"
+
+ec EXT2_ET_EA_NO_SPACE,
+ "Insufficient space to store extended attribute data"
+
+ec EXT2_ET_MISSING_EA_FEATURE,
+ "Filesystem is missing ext_attr or inline_data feature"
+
+ec EXT2_ET_NO_INLINE_DATA,
+ "Inode doesn't have inline data"
+
+ec EXT2_ET_INLINE_DATA_NO_BLOCK,
+ "No block for an inode with inline data"
+
+ec EXT2_ET_INLINE_DATA_NO_SPACE,
+ "No free space in inline data"
+
+ec EXT2_ET_MAGIC_EA_HANDLE,
+ "Wrong magic number for extended attribute structure"
+
end
__u32 h_refcount; /* reference count */
__u32 h_blocks; /* number of disk blocks used */
__u32 h_hash; /* hash value of all attributes */
- __u32 h_reserved[4]; /* zero right now */
+ __u32 h_checksum; /* crc32c(uuid+id+xattrs) */
+ /* id = inum if refcount = 1, else blknum */
+ __u32 h_reserved[3]; /* zero right now */
};
struct ext2_ext_attr_entry {
__u32 bg_reserved;
};
+#define EXT4_BG_INODE_BITMAP_CSUM_HI_END \
+ (offsetof(struct ext4_group_desc, bg_inode_bitmap_csum_hi) + \
+ sizeof(__u16))
+#define EXT4_BG_BLOCK_BITMAP_CSUM_HI_LOCATION \
+ (offsetof(struct ext4_group_desc, bg_block_bitmap_csum_hi) + \
+ sizeof(__u16))
+
#define EXT2_BG_INODE_UNINIT 0x0001 /* Inode table/bitmap not initialized */
#define EXT2_BG_BLOCK_UNINIT 0x0002 /* Block bitmap not initialized */
#define EXT2_BG_INODE_ZEROED 0x0004 /* On-disk itable initialized to zero */
__u16 count;
};
+/*
+ * This goes at the end of each htree block.
+ */
+struct ext2_dx_tail {
+ __u32 dt_reserved;
+ __u32 dt_checksum; /* crc32c(uuid+inum+dxblock) */
+};
/*
* Macro-instructions used to manage group descriptors
#define EXT4_SNAPFILE_FL 0x01000000 /* Inode is a snapshot */
#define EXT4_SNAPFILE_DELETED_FL 0x04000000 /* Snapshot is being deleted */
#define EXT4_SNAPFILE_SHRUNK_FL 0x08000000 /* Snapshot shrink has completed */
+#define EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data */
#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define EXT2_FL_USER_VISIBLE 0x004BDFFF /* User visible flags */
__u32 i_version_hi; /* high 32 bits for 64-bit version */
};
+#define EXT4_INODE_CSUM_HI_EXTRA_END \
+ (offsetof(struct ext2_inode_large, i_checksum_hi) + sizeof(__u16) - \
+ EXT2_GOOD_OLD_INODE_SIZE)
+
#define i_dir_acl i_size_high
+#define i_checksum_lo osd2.linux2.l_i_checksum_lo
+
#if defined(__KERNEL__) || defined(__linux__)
#define i_reserved1 osd1.linux1.l_i_reserved1
#define i_frag osd2.linux2.l_i_frag
#define ext4_offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#endif
+/* Metadata checksum algorithms */
+#define EXT2_CRC32C_CHKSUM 1
+
/*
* Structure of the super block
*/
__u64 s_mmp_block; /* Block for multi-mount protection */
__u32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
__u8 s_log_groups_per_flex; /* FLEX_BG group size */
- __u8 s_reserved_char_pad;
+ __u8 s_checksum_type; /* metadata checksum algorithm */
__u16 s_reserved_pad; /* Padding to next 32bits */
__u64 s_kbytes_written; /* nr of lifetime kilobytes written */
__u32 s_snapshot_inum; /* Inode number of active snapshot */
#define EXT4_FEATURE_RO_COMPAT_HAS_SNAPSHOT 0x0080
#define EXT4_FEATURE_RO_COMPAT_QUOTA 0x0100
#define EXT4_FEATURE_RO_COMPAT_BIGALLOC 0x0200
+/*
+ * METADATA_CSUM implies GDT_CSUM. When METADATA_CSUM is set, group
+ * descriptor checksums use the same algorithm as all other data
+ * structures' checksums.
+ */
#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
#define EXT4_FEATURE_RO_COMPAT_REPLICA 0x0800
#define EXT4_FEATURE_INCOMPAT_DIRDATA 0x1000
/* 0x2000 was EXT4_FEATURE_INCOMPAT_BG_USE_META_CSUM but this was never used */
#define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB or 3-lvl htree */
-#define EXT4_FEATURE_INCOMPAT_INLINEDATA 0x8000 /* data in inode */
+#define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode */
#define EXT2_FEATURE_COMPAT_SUPP 0
#define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \
* stored in intel byte order, and the name_len field could never be
* bigger than 255 chars, it's safe to reclaim the extra byte for the
* file_type field.
+ *
+ * This structure is deprecated due to endianity issues. Please use struct
+ * ext2_dir_entry and accessor functions
+ * ext2fs_dirent_name_len
+ * ext2fs_dirent_set_name_len
+ * ext2fs_dirent_file_type
+ * ext2fs_dirent_set_file_type
+ * to get and set name_len and file_type fields.
*/
struct ext2_dir_entry_2 {
__u32 inode; /* Inode number */
char name[EXT2_NAME_LEN]; /* File name */
};
+/*
+ * This is a bogus directory entry at the end of each leaf block that
+ * records checksums.
+ */
+struct ext2_dir_entry_tail {
+ __u32 det_reserved_zero1; /* Pretend to be unused */
+ __u16 det_rec_len; /* 12 */
+ __u16 det_reserved_name_len; /* 0xDE00, fake namelen/filetype */
+ __u32 det_checksum; /* crc32c(uuid+inode+dirent) */
+};
+
/*
* Ext2 directory file types. Only the low 3 bits are used. The
* other bits are reserved for now.
#define EXT2_FT_MAX 8
+/*
+ * Annoyingly, e2fsprogs always swab16s ext2_dir_entry.name_len, so we
+ * have to build ext2_dir_entry_tail with that assumption too. This
+ * constant helps to build the dir_entry_tail to look like it has an
+ * "invalid" file type.
+ */
+#define EXT2_DIR_NAME_LEN_CSUM 0xDE00
+
/*
* EXT2_DIR_PAD defines the directory entries boundaries
*
char mmp_bdevname[32]; /* Bdev which last updated MMP block */
__u16 mmp_check_interval; /* Changed mmp_check_interval */
__u16 mmp_pad1;
- __u32 mmp_pad2[227];
+ __u32 mmp_pad2[226];
+ __u32 mmp_checksum; /* crc32c(uuid+mmp_block) */
};
/*
*/
#define EXT4_MMP_MIN_CHECK_INTERVAL 5
+/*
+ * Minimum size of inline data.
+ */
+#define EXT4_MIN_INLINE_DATA_SIZE ((sizeof(__u32) * EXT2_N_BLOCKS))
+
+/*
+ * Size of a parent inode in inline data directory.
+ */
+#define EXT4_INLINE_DATA_DOTDOT_SIZE (4)
+
#endif /* _LINUX_EXT2_FS_H */
#define EXT2_FLAG_PRINT_PROGRESS 0x40000
#define EXT2_FLAG_DIRECT_IO 0x80000
#define EXT2_FLAG_SKIP_MMP 0x100000
+#define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
/*
* Special flag in the ext2 inode i_flag field that means that this is
* Time at which e2fsck last updated the MMP block.
*/
long mmp_last_written;
+
+ /* progress operation functions */
+ struct ext2fs_progress_ops *progress_ops;
+
+ /* Precomputed FS UUID checksum for seeding other checksums */
+ __u32 csum_seed;
};
#if EXT2_FLAT_INCLUDES
/*
* Return flags for the block iterator functions
*/
-#define BLOCK_CHANGED 1
-#define BLOCK_ABORT 2
-#define BLOCK_ERROR 4
+#define BLOCK_CHANGED 1
+#define BLOCK_ABORT 2
+#define BLOCK_ERROR 4
+#define BLOCK_INLINE_DATA_CHANGED 8
/*
* Block interate flags
#define DIRENT_FLAG_INCLUDE_EMPTY 1
#define DIRENT_FLAG_INCLUDE_REMOVED 2
+#define DIRENT_FLAG_INCLUDE_CSUM 4
+#define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
#define DIRENT_DOT_FILE 1
#define DIRENT_DOT_DOT_FILE 2
#define DIRENT_OTHER_FILE 3
#define DIRENT_DELETED_FILE 4
+#define DIRENT_CHECKSUM 5
/*
* Inode scan definitions
environment at configure time. */
#warning "Compression support is experimental"
#endif
-#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
- EXT2_FEATURE_INCOMPAT_COMPRESSION|\
- EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
- EXT2_FEATURE_INCOMPAT_META_BG|\
- EXT3_FEATURE_INCOMPAT_RECOVER|\
- EXT3_FEATURE_INCOMPAT_EXTENTS|\
- EXT4_FEATURE_INCOMPAT_FLEX_BG|\
- EXT4_FEATURE_INCOMPAT_MMP|\
- EXT4_FEATURE_INCOMPAT_64BIT)
+#define EXT2_LIB_INCOMPAT_COMPRESSION EXT2_FEATURE_INCOMPAT_COMPRESSION
#else
+#define EXT2_LIB_INCOMPAT_COMPRESSION (0)
+#endif
+
+#ifdef CONFIG_MMP
+#define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
+#else
+#define EXT4_LIB_INCOMPAT_MMP (0)
+#endif
+
+#ifdef CONFIG_QUOTA
+#define EXT4_LIB_RO_COMPAT_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA
+#else
+#define EXT4_LIB_RO_COMPAT_QUOTA (0)
+#endif
+
#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
+ EXT2_LIB_INCOMPAT_COMPRESSION|\
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
EXT2_FEATURE_INCOMPAT_META_BG|\
EXT3_FEATURE_INCOMPAT_RECOVER|\
EXT3_FEATURE_INCOMPAT_EXTENTS|\
EXT4_FEATURE_INCOMPAT_FLEX_BG|\
- EXT4_FEATURE_INCOMPAT_MMP|\
- EXT4_FEATURE_INCOMPAT_64BIT)
-#endif
-#ifdef CONFIG_QUOTA
+ EXT4_LIB_INCOMPAT_MMP|\
+ EXT4_FEATURE_INCOMPAT_64BIT|\
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA)
+
#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
- EXT4_FEATURE_RO_COMPAT_QUOTA)
-#else
-#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
- EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
- EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
- EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
- EXT4_FEATURE_RO_COMPAT_BIGALLOC)
-#endif
+ EXT4_LIB_RO_COMPAT_QUOTA|\
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
/*
* These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
* to ext2fs_openfs()
*/
-#define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
+#define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT4_FEATURE_INCOMPAT_INLINE_DATA)
#define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
*/
#define EXT2_FLAG_FLUSH_NO_SYNC 1
+/*
+ * Modify and iterate extended attributes
+ */
+struct ext2_xattr_handle;
+#define XATTR_ABORT 1
+#define XATTR_CHANGED 2
+
/*
* function prototypes
*/
+static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
+{
+ return EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
+}
/* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
void *out);
/* blknum.c */
+extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
+extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
struct opaque_ext2_group_desc *gdp,
dgrp_t group);
+extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
blk64_t blk);
+extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
blk64_t blk);
extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
/* crc32c.c */
-extern __u32 ext2fs_crc32c_be(__u32 crc, unsigned char const *p, size_t len);
+extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
/* csum.c */
+extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
+extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
+extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
+extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
+ struct ext2_super_block *sb);
+extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
+ struct ext2_super_block *sb);
+extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
+ ext2_ino_t inum, blk64_t block,
+ struct ext2_ext_attr_header *hdr);
+extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ blk64_t block,
+ struct ext2_ext_attr_header *hdr);
+#define EXT2_DIRENT_TAIL(block, blocksize) \
+ ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
+ (blocksize) - sizeof(struct ext2_dir_entry_tail)))
+
+extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
+ struct ext2_dir_entry_tail *t);
+extern int ext2fs_dirent_has_tail(ext2_filsys fs,
+ struct ext2_dir_entry *dirent);
+extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent);
+extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent);
+extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_dir_entry *dirent);
+extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
+ struct ext2_dir_entry *dirent,
+ struct ext2_dx_countlimit **cc,
+ int *offset);
+extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
+ ext2_ino_t inum,
+ struct ext3_extent_header *eh);
+extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
+ ext2_ino_t inum,
+ struct ext3_extent_header *eh);
+extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size);
+extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size);
+extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size);
+extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
+ char *bitmap, int size);
+extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_inode_large *inode);
+extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
+ struct ext2_inode_large *inode);
extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
/* dblist.c */
-
-extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
blk_t blk, int blockcnt);
void *buf, int flags);
extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
void *buf, int flags);
+extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
+ void *buf, int flags, ext2_ino_t ino);
extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
void *buf);
extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
void *buf, int flags);
extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
void *buf, int flags);
+extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
+ void *buf, int flags, ext2_ino_t ino);
/* dirhash.c */
extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
void *buf);
+extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
+ void *buf, ext2_ino_t inum);
extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
void *buf);
extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
void *buf);
+extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
+ void *buf, ext2_ino_t inum);
extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
char *block_buf,
int adjust, __u32 *newcount);
extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
char *block_buf,
int adjust, __u32 *newcount);
+extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
+ char *block_buf,
+ int adjust, __u32 *newcount,
+ ext2_ino_t inum);
+errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
+errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
+errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
+ int (*func)(char *name, char *value,
+ size_t value_len, void *data),
+ void *data);
+errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
+ void **value, size_t *value_len);
+errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
+ const char *key,
+ const void *value,
+ size_t value_len);
+errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
+ const char *key);
+errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_xattr_handle **handle);
+errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
+errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode_large *inode);
+errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
+errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
+ size_t *size);
/* extent.c */
extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
__u32 *out);
/* gen_bitmap64.c */
-
-/* Generate and print bitmap usage statistics */
-#define BMAP_STATS
-
void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
int type, __u64 start, __u64 end,
errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
ext2fs_block_bitmap *bitmap);
+/* get_num_dirs.c */
+extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
+
/* getsize.c */
extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
blk_t *retblocks);
extern errcode_t ext2fs_get_memalign(unsigned long size,
unsigned long align, void *ptr);
+/* inline_data.c */
+extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
+extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
+ size_t *size);
+extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ void *buf, size_t *size);
+extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ void *buf, size_t size);
+
/* inode.c */
+extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
+ unsigned int cache_size);
+extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
ext2_ino_t *ino,
/* newdir.c */
extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
ext2_ino_t parent_ino, char **block);
+extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
+ ext2_ino_t parent_ino, __u32 *iblock);
/* mkdir.c */
extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
errcode_t ext2fs_mmp_init(ext2_filsys fs);
errcode_t ext2fs_mmp_start(ext2_filsys fs);
errcode_t ext2fs_mmp_update(ext2_filsys fs);
+errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
errcode_t ext2fs_mmp_stop(ext2_filsys fs);
unsigned ext2fs_mmp_new_seq(void);
extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
/* swapfs.c */
+extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
+ int flags);
+extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
+extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
+ int flags);
+extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
int has_header);
extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
/* inline functions */
#ifdef NO_INLINE_FUNCS
+extern void ext2fs_init_csum_seed(ext2_filsys fs);
extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
extern errcode_t ext2fs_get_array(unsigned long count,
#endif /* __STDC_VERSION__ >= 199901L */
#endif
+_INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
+{
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ return;
+
+ fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
+ sizeof(fs->super->s_uuid));
+}
+
#ifndef EXT2_CUSTOM_MEMORY_ROUTINES
#include <string.h>
/*
return ((a - 1) / b) + 1;
}
+_INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
+{
+ return entry->name_len & 0xff;
+}
+
+_INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
+{
+ entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
+}
+
+_INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
+{
+ return entry->name_len >> 8;
+}
+
+_INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
+{
+ entry->name_len = (entry->name_len & 0xff) | (type << 8);
+}
+
#undef _INLINE_
#endif
ext2_ino_t dir;
int flags;
char *buf;
+ unsigned int buflen;
int (*func)(ext2_ino_t dir,
int entry,
struct ext2_dir_entry *dirent,
void * buffer;
blk64_t buffer_blk;
int cache_last;
- int cache_size;
+ unsigned int cache_size;
int refcount;
struct ext2_inode_cache_ent *cache;
};
struct ext2_inode_cache_ent {
ext2_ino_t ino;
- struct ext2_inode inode;
+ struct ext2_inode *inode;
};
/* Function prototypes */
int ref_offset,
void *priv_data);
+extern errcode_t ext2fs_inline_data_ea_remove(ext2_filsys fs, ext2_ino_t ino);
+extern errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino);
+extern int ext2fs_inline_data_dir_iterate(ext2_filsys fs,
+ ext2_ino_t ino,
+ void *priv_data);
+
/* Generic numeric progress meter */
struct ext2fs_numeric_progress_struct {
int skip_progress;
};
+/*
+ * progress callback functions
+ */
+struct ext2fs_progress_ops {
+ void (*init)(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ const char *label, __u64 max);
+ void (*update)(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ __u64 val);
+ void (*close)(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ const char *message);
+};
+
+extern struct ext2fs_progress_ops ext2fs_numeric_progress_ops;
+
extern void ext2fs_numeric_progress_init(ext2_filsys fs,
struct ext2fs_numeric_progress_struct * progress,
const char *label, __u64 max);
* - number of alive extents in the inode
*/
+/*
+ * This is extent tail on-disk structure.
+ * All other extent structures are 12 bytes long. It turns out that
+ * block_size % 12 >= 4 for at least all powers of 2 greater than 512, which
+ * covers all valid ext4 block sizes. Therefore, this tail structure can be
+ * crammed into the end of the block without having to rebalance the tree.
+ */
+struct ext3_extent_tail {
+ __u32 et_checksum; /* crc32c(uuid+inum+extent_block) */
+};
+
/*
* this is extent on-disk structure
* it's used at the bottom of the tree
#undef NAME_HASH_SHIFT
#undef VALUE_HASH_SHIFT
-errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block, void *buf)
+errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block, void *buf,
+ ext2_ino_t inum)
{
errcode_t retval;
retval = io_channel_read_blk64(fs->io, block, 1, buf);
if (retval)
return retval;
+
+ if (!(fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_ext_attr_block_csum_verify(fs, inum, block, buf))
+ retval = EXT2_ET_EXT_ATTR_CSUM_INVALID;
+
#ifdef WORDS_BIGENDIAN
ext2fs_swap_ext_attr(buf, buf, fs->blocksize, 1);
#endif
- return 0;
+
+ return retval;
+}
+
+errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block, void *buf)
+{
+ return ext2fs_read_ext_attr3(fs, block, buf, 0);
}
errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf)
return ext2fs_read_ext_attr2(fs, block, buf);
}
-errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block, void *inbuf)
+errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block, void *inbuf,
+ ext2_ino_t inum)
{
errcode_t retval;
char *write_buf;
-#ifdef WORDS_BIGENDIAN
- char *buf = NULL;
- retval = ext2fs_get_mem(fs->blocksize, &buf);
+#ifdef WORDS_BIGENDIAN
+ retval = ext2fs_get_mem(fs->blocksize, &write_buf);
if (retval)
return retval;
- write_buf = buf;
- ext2fs_swap_ext_attr(buf, inbuf, fs->blocksize, 1);
+ ext2fs_swap_ext_attr(write_buf, inbuf, fs->blocksize, 1);
#else
write_buf = (char *) inbuf;
#endif
+
+ retval = ext2fs_ext_attr_block_csum_set(fs, inum, block,
+ (struct ext2_ext_attr_header *)write_buf);
+ if (retval)
+ return retval;
+
retval = io_channel_write_blk64(fs->io, block, 1, write_buf);
#ifdef WORDS_BIGENDIAN
- ext2fs_free_mem(&buf);
+ ext2fs_free_mem(&write_buf);
#endif
if (!retval)
ext2fs_mark_changed(fs);
return retval;
}
+errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block, void *inbuf)
+{
+ return ext2fs_write_ext_attr3(fs, block, inbuf, 0);
+}
+
errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, void *inbuf)
{
return ext2fs_write_ext_attr2(fs, block, inbuf);
/*
* This function adjusts the reference count of the EA block.
*/
-errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
+errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
char *block_buf, int adjust,
- __u32 *newcount)
+ __u32 *newcount, ext2_ino_t inum)
{
errcode_t retval;
struct ext2_ext_attr_header *header;
block_buf = buf;
}
- retval = ext2fs_read_ext_attr2(fs, blk, block_buf);
+ retval = ext2fs_read_ext_attr3(fs, blk, block_buf, inum);
if (retval)
goto errout;
if (newcount)
*newcount = header->h_refcount;
- retval = ext2fs_write_ext_attr2(fs, blk, block_buf);
+ retval = ext2fs_write_ext_attr3(fs, blk, block_buf, inum);
if (retval)
goto errout;
return retval;
}
+errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
+ char *block_buf, int adjust,
+ __u32 *newcount)
+{
+ return ext2fs_adjust_ea_refcount3(fs, blk, block_buf, adjust,
+ newcount, 0);
+}
+
errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
char *block_buf, int adjust,
__u32 *newcount)
{
- return ext2fs_adjust_ea_refcount(fs, blk, block_buf, adjust, newcount);
+ return ext2fs_adjust_ea_refcount2(fs, blk, block_buf, adjust,
+ newcount);
+}
+
+/* Manipulate the contents of extended attribute regions */
+struct ext2_xattr {
+ char *name;
+ void *value;
+ size_t value_len;
+};
+
+struct ext2_xattr_handle {
+ errcode_t magic;
+ ext2_filsys fs;
+ struct ext2_xattr *attrs;
+ size_t length, count;
+ ext2_ino_t ino;
+ int dirty;
+};
+
+static errcode_t ext2fs_xattrs_expand(struct ext2_xattr_handle *h,
+ unsigned int expandby)
+{
+ struct ext2_xattr *new_attrs;
+ errcode_t err;
+
+ err = ext2fs_get_arrayzero(h->length + expandby,
+ sizeof(struct ext2_xattr), &new_attrs);
+ if (err)
+ return err;
+
+ memcpy(new_attrs, h->attrs, h->length * sizeof(struct ext2_xattr));
+ ext2fs_free_mem(&h->attrs);
+ h->length += expandby;
+ h->attrs = new_attrs;
+
+ return 0;
+}
+
+struct ea_name_index {
+ int index;
+ const char *name;
+};
+
+/* Keep these names sorted in order of decreasing specificity. */
+static struct ea_name_index ea_names[] = {
+ {3, "system.posix_acl_default"},
+ {2, "system.posix_acl_access"},
+ {8, "system.richacl"},
+ {6, "security."},
+ {4, "trusted."},
+ {7, "system."},
+ {1, "user."},
+ {0, NULL},
+};
+
+static void move_inline_data_to_front(struct ext2_xattr_handle *h)
+{
+ struct ext2_xattr *x;
+ struct ext2_xattr tmp;
+
+ for (x = h->attrs + 1; x < h->attrs + h->length; x++) {
+ if (!x->name)
+ continue;
+
+ if (strcmp(x->name, "system.data") == 0) {
+ memcpy(&tmp, x, sizeof(tmp));
+ memcpy(x, h->attrs, sizeof(tmp));
+ memcpy(h->attrs, &tmp, sizeof(tmp));
+ return;
+ }
+ }
+}
+
+static const char *find_ea_prefix(int index)
+{
+ struct ea_name_index *e;
+
+ for (e = ea_names; e->name; e++)
+ if (e->index == index)
+ return e->name;
+
+ return NULL;
+}
+
+static int find_ea_index(const char *fullname, char **name, int *index)
+{
+ struct ea_name_index *e;
+
+ for (e = ea_names; e->name; e++) {
+ if (memcmp(fullname, e->name, strlen(e->name)) == 0) {
+ *name = (char *)fullname + strlen(e->name);
+ *index = e->index;
+ return 1;
+ }
+ }
+ return 0;
+}
+
+errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode_large *inode)
+{
+ struct ext2_ext_attr_header *header;
+ void *block_buf = NULL;
+ dgrp_t grp;
+ blk64_t blk, goal;
+ errcode_t err;
+ struct ext2_inode_large i;
+
+ /* Read inode? */
+ if (inode == NULL) {
+ err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&i,
+ sizeof(struct ext2_inode_large));
+ if (err)
+ return err;
+ inode = &i;
+ }
+
+ /* Do we already have an EA block? */
+ blk = ext2fs_file_acl_block(fs, (struct ext2_inode *)inode);
+ if (blk == 0)
+ return 0;
+
+ /* Find block, zero it, write back */
+ if ((blk < fs->super->s_first_data_block) ||
+ (blk >= ext2fs_blocks_count(fs->super))) {
+ err = EXT2_ET_BAD_EA_BLOCK_NUM;
+ goto out;
+ }
+
+ err = ext2fs_get_mem(fs->blocksize, &block_buf);
+ if (err)
+ goto out;
+
+ err = ext2fs_read_ext_attr3(fs, blk, block_buf, ino);
+ if (err)
+ goto out2;
+
+ header = (struct ext2_ext_attr_header *) block_buf;
+ if (header->h_magic != EXT2_EXT_ATTR_MAGIC) {
+ err = EXT2_ET_BAD_EA_HEADER;
+ goto out2;
+ }
+
+ header->h_refcount--;
+ err = ext2fs_write_ext_attr3(fs, blk, block_buf, ino);
+ if (err)
+ goto out2;
+
+ /* Erase link to block */
+ ext2fs_file_acl_block_set(fs, (struct ext2_inode *)inode, 0);
+ if (header->h_refcount == 0)
+ ext2fs_block_alloc_stats2(fs, blk, -1);
+ err = ext2fs_iblk_sub_blocks(fs, (struct ext2_inode *)inode, 1);
+ if (err)
+ goto out2;
+
+ /* Write inode? */
+ if (inode == &i) {
+ err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&i,
+ sizeof(struct ext2_inode_large));
+ if (err)
+ goto out2;
+ }
+
+out2:
+ ext2fs_free_mem(&block_buf);
+out:
+ return err;
+}
+
+static errcode_t prep_ea_block_for_write(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode_large *inode)
+{
+ struct ext2_ext_attr_header *header;
+ void *block_buf = NULL;
+ dgrp_t grp;
+ blk64_t blk, goal;
+ errcode_t err;
+
+ /* Do we already have an EA block? */
+ blk = ext2fs_file_acl_block(fs, (struct ext2_inode *)inode);
+ if (blk != 0) {
+ if ((blk < fs->super->s_first_data_block) ||
+ (blk >= ext2fs_blocks_count(fs->super))) {
+ err = EXT2_ET_BAD_EA_BLOCK_NUM;
+ goto out;
+ }
+
+ err = ext2fs_get_mem(fs->blocksize, &block_buf);
+ if (err)
+ goto out;
+
+ err = ext2fs_read_ext_attr3(fs, blk, block_buf, ino);
+ if (err)
+ goto out2;
+
+ header = (struct ext2_ext_attr_header *) block_buf;
+ if (header->h_magic != EXT2_EXT_ATTR_MAGIC) {
+ err = EXT2_ET_BAD_EA_HEADER;
+ goto out2;
+ }
+
+ /* Single-user block. We're done here. */
+ if (header->h_refcount == 1)
+ goto out2;
+
+ /* We need to CoW the block. */
+ header->h_refcount--;
+ err = ext2fs_write_ext_attr3(fs, blk, block_buf, ino);
+ if (err)
+ goto out2;
+ } else {
+ /* No block, we must increment i_blocks */
+ err = ext2fs_iblk_add_blocks(fs, (struct ext2_inode *)inode,
+ 1);
+ if (err)
+ goto out;
+ }
+
+ /* Allocate a block */
+ grp = ext2fs_group_of_ino(fs, ino);
+ goal = ext2fs_inode_table_loc(fs, grp);
+ err = ext2fs_alloc_block2(fs, goal, NULL, &blk);
+ if (err)
+ goto out2;
+ ext2fs_file_acl_block_set(fs, (struct ext2_inode *)inode, blk);
+out2:
+ if (block_buf)
+ ext2fs_free_mem(&block_buf);
+out:
+ return err;
+}
+
+
+static errcode_t write_xattrs_to_buffer(struct ext2_xattr_handle *handle,
+ struct ext2_xattr **pos,
+ void *entries_start,
+ unsigned int storage_size,
+ unsigned int value_offset_correction)
+{
+ struct ext2_xattr *x = *pos;
+ struct ext2_ext_attr_entry *e = entries_start;
+ void *end = entries_start + storage_size;
+ char *shortname;
+ unsigned int entry_size, value_size;
+ int idx, ret;
+
+ memset(entries_start, 0, storage_size);
+ /* For all remaining x... */
+ for (; x < handle->attrs + handle->length; x++) {
+ if (!x->name)
+ continue;
+
+ /* Calculate index and shortname position */
+ shortname = x->name;
+ ret = find_ea_index(x->name, &shortname, &idx);
+
+ /* Calculate entry and value size */
+ entry_size = (sizeof(*e) + strlen(shortname) +
+ EXT2_EXT_ATTR_PAD - 1) &
+ ~(EXT2_EXT_ATTR_PAD - 1);
+ value_size = ((x->value_len + EXT2_EXT_ATTR_PAD - 1) /
+ EXT2_EXT_ATTR_PAD) * EXT2_EXT_ATTR_PAD;
+
+ /*
+ * Would entry collide with value?
+ * Note that we must leave sufficient room for a (u32)0 to
+ * mark the end of the entries.
+ */
+ if ((void *)e + entry_size + sizeof(__u32) > end - value_size)
+ break;
+
+ /* Fill out e appropriately */
+ e->e_name_len = strlen(shortname);
+ e->e_name_index = (ret ? idx : 0);
+ e->e_value_offs = end - value_size - (void *)entries_start +
+ value_offset_correction;
+ e->e_value_block = 0;
+ e->e_value_size = x->value_len;
+
+ /* Store name and value */
+ end -= value_size;
+ memcpy((void *)e + sizeof(*e), shortname, e->e_name_len);
+ memcpy(end, x->value, e->e_value_size);
+
+ e->e_hash = ext2fs_ext_attr_hash_entry(e, end);
+
+ e = EXT2_EXT_ATTR_NEXT(e);
+ *(__u32 *)e = 0;
+ }
+ *pos = x;
+
+ return 0;
+}
+
+errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle)
+{
+ struct ext2_xattr *x;
+ struct ext2_inode_large *inode;
+ void *start, *block_buf = NULL;
+ struct ext2_ext_attr_header *header;
+ __u32 ea_inode_magic;
+ blk64_t blk;
+ unsigned int storage_size;
+ unsigned int i;
+ errcode_t err;
+
+ EXT2_CHECK_MAGIC(handle, EXT2_ET_MAGIC_EA_HANDLE);
+ i = EXT2_INODE_SIZE(handle->fs->super);
+ if (i < sizeof(*inode))
+ i = sizeof(*inode);
+ err = ext2fs_get_memzero(i, &inode);
+ if (err)
+ return err;
+
+ err = ext2fs_read_inode_full(handle->fs, handle->ino,
+ (struct ext2_inode *)inode,
+ EXT2_INODE_SIZE(handle->fs->super));
+ if (err)
+ goto out;
+
+ move_inline_data_to_front(handle);
+
+ x = handle->attrs;
+ /* Does the inode have size for EA? */
+ if (EXT2_INODE_SIZE(handle->fs->super) <= EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize +
+ sizeof(__u32))
+ goto write_ea_block;
+
+ /* Write the inode EA */
+ ea_inode_magic = EXT2_EXT_ATTR_MAGIC;
+ memcpy(((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize, &ea_inode_magic, sizeof(__u32));
+ storage_size = EXT2_INODE_SIZE(handle->fs->super) -
+ EXT2_GOOD_OLD_INODE_SIZE - inode->i_extra_isize -
+ sizeof(__u32);
+ start = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize + sizeof(__u32);
+
+ err = write_xattrs_to_buffer(handle, &x, start, storage_size, 0);
+ if (err)
+ goto out;
+
+ /* Are we done? */
+ if (x == handle->attrs + handle->length)
+ goto skip_ea_block;
+
+write_ea_block:
+ /* Write the EA block */
+ err = ext2fs_get_mem(handle->fs->blocksize, &block_buf);
+ if (err)
+ goto out;
+
+ storage_size = handle->fs->blocksize -
+ sizeof(struct ext2_ext_attr_header);
+ start = block_buf + sizeof(struct ext2_ext_attr_header);
+
+ err = write_xattrs_to_buffer(handle, &x, start, storage_size,
+ (void *)start - block_buf);
+ if (err)
+ goto out2;
+
+ if (x < handle->attrs + handle->length) {
+ err = EXT2_ET_EA_NO_SPACE;
+ goto out2;
+ }
+
+ /* Write a header on the EA block */
+ header = block_buf;
+ header->h_magic = EXT2_EXT_ATTR_MAGIC;
+ header->h_refcount = 1;
+ header->h_blocks = 1;
+
+ /* Get a new block for writing */
+ err = prep_ea_block_for_write(handle->fs, handle->ino, inode);
+ if (err)
+ goto out2;
+
+ /* Finally, write the new EA block */
+ blk = ext2fs_file_acl_block(handle->fs,
+ (struct ext2_inode *)inode);
+ err = ext2fs_write_ext_attr3(handle->fs, blk, block_buf,
+ handle->ino);
+ if (err)
+ goto out2;
+
+skip_ea_block:
+ blk = ext2fs_file_acl_block(handle->fs, (struct ext2_inode *)inode);
+ if (!block_buf && blk) {
+ /* xattrs shrunk, free the block */
+ err = ext2fs_free_ext_attr(handle->fs, handle->ino, inode);
+ if (err)
+ goto out;
+ }
+
+ /* Write the inode */
+ err = ext2fs_write_inode_full(handle->fs, handle->ino,
+ (struct ext2_inode *)inode,
+ EXT2_INODE_SIZE(handle->fs->super));
+ if (err)
+ goto out2;
+
+out2:
+ ext2fs_free_mem(&block_buf);
+out:
+ ext2fs_free_mem(&inode);
+ handle->dirty = 0;
+ return err;
+}
+
+static errcode_t read_xattrs_from_buffer(struct ext2_xattr_handle *handle,
+ struct ext2_ext_attr_entry *entries,
+ unsigned int storage_size,
+ void *value_start,
+ size_t *nr_read)
+{
+ struct ext2_xattr *x;
+ struct ext2_ext_attr_entry *entry;
+ const char *prefix;
+ void *ptr;
+ unsigned int remain, prefix_len;
+ errcode_t err;
+
+ x = handle->attrs;
+ while (x->name)
+ x++;
+
+ entry = entries;
+ remain = storage_size;
+ while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
+ __u32 hash;
+
+ /* header eats this space */
+ remain -= sizeof(struct ext2_ext_attr_entry);
+
+ /* is attribute name valid? */
+ if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain)
+ return EXT2_ET_EA_BAD_NAME_LEN;
+
+ /* attribute len eats this space */
+ remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
+
+ /* check value size */
+ if (entry->e_value_size > remain)
+ return EXT2_ET_EA_BAD_VALUE_SIZE;
+
+ /* e_value_block must be 0 in inode's ea */
+ if (entry->e_value_block != 0)
+ return EXT2_ET_BAD_EA_BLOCK_NUM;
+
+ hash = ext2fs_ext_attr_hash_entry(entry, value_start +
+ entry->e_value_offs);
+
+ /* e_hash may be 0 in older inode's ea */
+ if (entry->e_hash != 0 && entry->e_hash != hash)
+ return EXT2_ET_BAD_EA_HASH;
+
+ remain -= entry->e_value_size;
+
+ /* Allocate space for more attrs? */
+ if (x == handle->attrs + handle->length) {
+ err = ext2fs_xattrs_expand(handle, 4);
+ if (err)
+ return err;
+ x = handle->attrs + handle->length - 4;
+ }
+
+ /* Extract name/value */
+ prefix = find_ea_prefix(entry->e_name_index);
+ prefix_len = (prefix ? strlen(prefix) : 0);
+ err = ext2fs_get_memzero(entry->e_name_len + prefix_len + 1,
+ &x->name);
+ if (err)
+ return err;
+ if (prefix)
+ memcpy(x->name, prefix, prefix_len);
+ if (entry->e_name_len)
+ memcpy(x->name + prefix_len,
+ (void *)entry + sizeof(*entry),
+ entry->e_name_len);
+
+ err = ext2fs_get_mem(entry->e_value_size, &x->value);
+ if (err)
+ return err;
+ x->value_len = entry->e_value_size;
+ memcpy(x->value, value_start + entry->e_value_offs,
+ entry->e_value_size);
+ x++;
+ (*nr_read)++;
+ entry = EXT2_EXT_ATTR_NEXT(entry);
+ }
+
+ return 0;
+}
+
+static void xattrs_free_keys(struct ext2_xattr_handle *h)
+{
+ struct ext2_xattr *a = h->attrs;
+ size_t i;
+
+ for (i = 0; i < h->length; i++) {
+ if (a[i].name)
+ ext2fs_free_mem(&a[i].name);
+ if (a[i].value)
+ ext2fs_free_mem(&a[i].value);
+ }
+ h->count = 0;
+}
+
+errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle)
+{
+ struct ext2_xattr *attrs = NULL, *x;
+ struct ext2_inode_large *inode;
+ struct ext2_ext_attr_header *header;
+ __u32 ea_inode_magic;
+ unsigned int storage_size;
+ void *start, *block_buf = NULL;
+ blk64_t blk;
+ int i;
+ errcode_t err;
+
+ EXT2_CHECK_MAGIC(handle, EXT2_ET_MAGIC_EA_HANDLE);
+ i = EXT2_INODE_SIZE(handle->fs->super);
+ if (i < sizeof(*inode))
+ i = sizeof(*inode);
+ err = ext2fs_get_memzero(i, &inode);
+ if (err)
+ return err;
+
+ err = ext2fs_read_inode_full(handle->fs, handle->ino,
+ (struct ext2_inode *)inode,
+ EXT2_INODE_SIZE(handle->fs->super));
+ if (err)
+ goto out;
+
+ xattrs_free_keys(handle);
+
+ /* Does the inode have size for EA? */
+ if (EXT2_INODE_SIZE(handle->fs->super) <= EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize +
+ sizeof(__u32))
+ goto read_ea_block;
+
+ /* Look for EA in the inode */
+ memcpy(&ea_inode_magic, ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize, sizeof(__u32));
+ if (ea_inode_magic == EXT2_EXT_ATTR_MAGIC) {
+ storage_size = EXT2_INODE_SIZE(handle->fs->super) -
+ EXT2_GOOD_OLD_INODE_SIZE - inode->i_extra_isize -
+ sizeof(__u32);
+ start = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize + sizeof(__u32);
+
+ err = read_xattrs_from_buffer(handle, start, storage_size,
+ start, &handle->count);
+ if (err)
+ goto out;
+ }
+
+read_ea_block:
+ /* Look for EA in a separate EA block */
+ blk = ext2fs_file_acl_block(handle->fs, (struct ext2_inode *)inode);
+ if (blk != 0) {
+ if ((blk < handle->fs->super->s_first_data_block) ||
+ (blk >= ext2fs_blocks_count(handle->fs->super))) {
+ err = EXT2_ET_BAD_EA_BLOCK_NUM;
+ goto out;
+ }
+
+ err = ext2fs_get_mem(handle->fs->blocksize, &block_buf);
+ if (err)
+ goto out;
+
+ err = ext2fs_read_ext_attr3(handle->fs, blk, block_buf,
+ handle->ino);
+ if (err)
+ goto out3;
+
+ header = (struct ext2_ext_attr_header *) block_buf;
+ if (header->h_magic != EXT2_EXT_ATTR_MAGIC) {
+ err = EXT2_ET_BAD_EA_HEADER;
+ goto out3;
+ }
+
+ if (header->h_blocks != 1) {
+ err = EXT2_ET_BAD_EA_HEADER;
+ goto out3;
+ }
+
+ /* Read EAs */
+ storage_size = handle->fs->blocksize -
+ sizeof(struct ext2_ext_attr_header);
+ start = block_buf + sizeof(struct ext2_ext_attr_header);
+ err = read_xattrs_from_buffer(handle, start, storage_size,
+ block_buf, &handle->count);
+ if (err)
+ goto out3;
+
+ ext2fs_free_mem(&block_buf);
+ }
+
+ ext2fs_free_mem(&block_buf);
+ ext2fs_free_mem(&inode);
+ return 0;
+
+out3:
+ ext2fs_free_mem(&block_buf);
+out:
+ ext2fs_free_mem(&inode);
+ return err;
+}
+
+errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
+ int (*func)(char *name, char *value,
+ size_t value_len, void *data),
+ void *data)
+{
+ struct ext2_xattr *x;
+ errcode_t err;
+ int ret;
+
+ EXT2_CHECK_MAGIC(h, EXT2_ET_MAGIC_EA_HANDLE);
+ for (x = h->attrs; x < h->attrs + h->length; x++) {
+ if (!x->name)
+ continue;
+
+ ret = func(x->name, x->value, x->value_len, data);
+ if (ret & XATTR_CHANGED)
+ h->dirty = 1;
+ if (ret & XATTR_ABORT)
+ return 0;
+ }
+
+ return 0;
+}
+
+errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
+ void **value, size_t *value_len)
+{
+ struct ext2_xattr *x;
+ void *val;
+ errcode_t err;
+
+ EXT2_CHECK_MAGIC(h, EXT2_ET_MAGIC_EA_HANDLE);
+ for (x = h->attrs; x < h->attrs + h->length; x++) {
+ if (!x->name)
+ continue;
+
+ if (strcmp(x->name, key) == 0) {
+ err = ext2fs_get_mem(x->value_len, &val);
+ if (err)
+ return err;
+ memcpy(val, x->value, x->value_len);
+ *value = val;
+ *value_len = x->value_len;
+ return 0;
+ }
+ }
+
+ return EXT2_ET_EA_KEY_NOT_FOUND;
+}
+
+errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
+ size_t *size)
+{
+ struct ext2_ext_attr_header *header;
+ struct ext2_ext_attr_entry *entry;
+ struct ext2_inode_large *inode;
+ __u32 ea_inode_magic;
+ unsigned int storage_size, freesize, minoff;
+ void *start;
+ int i;
+ errcode_t err;
+
+ i = EXT2_INODE_SIZE(fs->super);
+ if (i < sizeof(*inode))
+ i = sizeof(*inode);
+ err = ext2fs_get_memzero(i, &inode);
+ if (err)
+ return err;
+
+ err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)inode,
+ EXT2_INODE_SIZE(fs->super));
+ if (err)
+ goto out;
+
+ /* Does the inode have size for EA? */
+ if (EXT2_INODE_SIZE(fs->super) <= EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize +
+ sizeof(__u32)) {
+ err = EXT2_ET_INLINE_DATA_NO_SPACE;
+ goto out;
+ }
+
+ minoff = EXT2_INODE_SIZE(fs->super) - sizeof(*inode) - sizeof(__u32);
+ memcpy(&ea_inode_magic, ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize, sizeof(__u32));
+ if (ea_inode_magic == EXT2_EXT_ATTR_MAGIC) {
+ /* has xattrs. calculate the size */
+ storage_size = EXT2_INODE_SIZE(fs->super) -
+ EXT2_GOOD_OLD_INODE_SIZE - inode->i_extra_isize -
+ sizeof(__u32);
+ start= ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize + sizeof(__u32);
+ entry = start;
+ while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
+ if (!entry->e_value_block && entry->e_value_size) {
+ unsigned int offs = entry->e_value_offs;
+ if (offs < minoff)
+ minoff = offs;
+ }
+ entry = EXT2_EXT_ATTR_NEXT(entry);
+ }
+ *size = minoff - ((char *)entry - (char *)start) - sizeof(__u32);
+ } else {
+ /* no xattr. return a maximum size */
+ *size = EXT2_EXT_ATTR_SIZE(minoff -
+ EXT2_EXT_ATTR_LEN(strlen("data")) -
+ EXT2_EXT_ATTR_ROUND - sizeof(__u32));
+ }
+
+out:
+ ext2fs_free_mem(&inode);
+ return err;
+}
+
+errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
+ const char *key,
+ const void *value,
+ size_t value_len)
+{
+ struct ext2_xattr *x, *last_empty;
+ char *new_value;
+ errcode_t err;
+
+ EXT2_CHECK_MAGIC(handle, EXT2_ET_MAGIC_EA_HANDLE);
+ last_empty = NULL;
+ for (x = handle->attrs; x < handle->attrs + handle->length; x++) {
+ if (!x->name) {
+ last_empty = x;
+ continue;
+ }
+
+ /* Replace xattr */
+ if (strcmp(x->name, key) == 0) {
+ err = ext2fs_get_mem(value_len, &new_value);
+ if (err)
+ return err;
+ memcpy(new_value, value, value_len);
+ ext2fs_free_mem(&x->value);
+ x->value = new_value;
+ x->value_len = value_len;
+ handle->dirty = 1;
+ return 0;
+ }
+ }
+
+ /* Add attr to empty slot */
+ if (last_empty) {
+ err = ext2fs_get_mem(strlen(key) + 1, &last_empty->name);
+ if (err)
+ return err;
+ strcpy(last_empty->name, key);
+
+ err = ext2fs_get_mem(value_len, &last_empty->value);
+ if (err)
+ return err;
+ memcpy(last_empty->value, value, value_len);
+ last_empty->value_len = value_len;
+ handle->dirty = 1;
+ handle->count++;
+ return 0;
+ }
+
+ /* Expand array, append slot */
+ err = ext2fs_xattrs_expand(handle, 4);
+ if (err)
+ return err;
+
+ x = handle->attrs + handle->length - 4;
+ err = ext2fs_get_mem(strlen(key) + 1, &x->name);
+ if (err)
+ return err;
+ strcpy(x->name, key);
+
+ err = ext2fs_get_mem(value_len, &x->value);
+ if (err)
+ return err;
+ memcpy(x->value, value, value_len);
+ x->value_len = value_len;
+ handle->dirty = 1;
+ handle->count++;
+ return 0;
+}
+
+errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
+ const char *key)
+{
+ struct ext2_xattr *x;
+ errcode_t err;
+
+ EXT2_CHECK_MAGIC(handle, EXT2_ET_MAGIC_EA_HANDLE);
+ for (x = handle->attrs; x < handle->attrs + handle->length; x++) {
+ if (!x->name)
+ continue;
+
+ if (strcmp(x->name, key) == 0) {
+ ext2fs_free_mem(&x->name);
+ ext2fs_free_mem(&x->value);
+ x->value_len = 0;
+ handle->dirty = 1;
+ handle->count--;
+ return 0;
+ }
+ }
+
+ return EXT2_ET_EA_KEY_NOT_FOUND;
+}
+
+errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_xattr_handle **handle)
+{
+ struct ext2_xattr_handle *h;
+ errcode_t err;
+
+ if (!EXT2_HAS_COMPAT_FEATURE(fs->super,
+ EXT2_FEATURE_COMPAT_EXT_ATTR) &&
+ !EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA))
+ return EXT2_ET_MISSING_EA_FEATURE;
+
+ err = ext2fs_get_memzero(sizeof(*h), &h);
+ if (err)
+ return err;
+
+ h->magic = EXT2_ET_MAGIC_EA_HANDLE;
+ h->length = 4;
+ err = ext2fs_get_arrayzero(h->length, sizeof(struct ext2_xattr),
+ &h->attrs);
+ if (err) {
+ ext2fs_free_mem(&h);
+ return err;
+ }
+ h->count = 0;
+ h->ino = ino;
+ h->fs = fs;
+ *handle = h;
+ return 0;
+}
+
+errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle)
+{
+ struct ext2_xattr_handle *h = *handle;
+ errcode_t err;
+
+ EXT2_CHECK_MAGIC(h, EXT2_ET_MAGIC_EA_HANDLE);
+ if (h->dirty) {
+ err = ext2fs_xattrs_write(h);
+ if (err)
+ return err;
+ }
+
+ xattrs_free_keys(h);
+ ext2fs_free_mem(&h->attrs);
+ ext2fs_free_mem(handle);
+ return 0;
+}
+
+errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count)
+{
+ EXT2_CHECK_MAGIC(handle, EXT2_ET_MAGIC_EA_HANDLE);
+ *count = handle->count;
+ return 0;
}
int type;
int level;
int max_depth;
+ int max_paths;
struct extent_path *path;
};
return;
if (handle->path) {
- for (i=1; i <= handle->max_depth; i++) {
+ for (i = 1; i < handle->max_paths; i++) {
if (handle->path[i].buf)
ext2fs_free_mem(&handle->path[i].buf);
}
handle->max_depth = ext2fs_le16_to_cpu(eh->eh_depth);
handle->type = ext2fs_le16_to_cpu(eh->eh_magic);
- retval = ext2fs_get_mem(((handle->max_depth+1) *
- sizeof(struct extent_path)),
- &handle->path);
- memset(handle->path, 0,
- (handle->max_depth+1) * sizeof(struct extent_path));
+ handle->max_paths = handle->max_depth + 1;
+ retval = ext2fs_get_memzero(handle->max_paths *
+ sizeof(struct extent_path),
+ &handle->path);
handle->path[0].buf = (char *) handle->inode->i_block;
handle->path[0].left = handle->path[0].entries =
return retval;
}
+ if (!(handle->fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_extent_block_csum_verify(handle->fs, handle->ino,
+ eh)) {
+ handle->level--;
+ return EXT2_ET_EXTENT_CSUM_INVALID;
+ }
+
newpath->left = newpath->entries =
ext2fs_le16_to_cpu(eh->eh_entries);
newpath->max_entries = ext2fs_le16_to_cpu(eh->eh_max);
blk64_t blk;
errcode_t retval;
struct ext3_extent_idx *ix;
+ struct ext3_extent_header *eh;
if (handle->level == 0) {
retval = ext2fs_write_inode(handle->fs, handle->ino,
blk = ext2fs_le32_to_cpu(ix->ei_leaf) +
((__u64) ext2fs_le16_to_cpu(ix->ei_leaf_hi) << 32);
+ /* then update the checksum */
+ eh = (struct ext3_extent_header *)
+ handle->path[handle->level].buf;
+ retval = ext2fs_extent_block_csum_set(handle->fs, handle->ino,
+ eh);
+ if (retval)
+ return retval;
+
retval = io_channel_write_blk64(handle->fs->io,
blk, 1, handle->path[handle->level].buf);
}
* and so on.
*
* Safe to call for any position in node; if not at the first entry,
- * will simply return.
+ * it will simply return.
+ *
+ * Note a subtlety of this function -- if there happen to be two extents
+ * mapping the same lblk and someone calls fix_parents on the second of the two
+ * extents, the position of the extent handle after the call will be the second
+ * extent if nothing happened, or the first extent if something did. A caller
+ * in this situation must use ext2fs_extent_goto() after calling this function.
+ * Or simply don't map the same lblk with two extents, ever.
*/
errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle)
{
if (handle->level == 0) {
new_root = 1;
tocopy = ext2fs_le16_to_cpu(eh->eh_entries);
- retval = ext2fs_get_mem(((handle->max_depth+2) *
- sizeof(struct extent_path)),
- &newpath);
+ retval = ext2fs_get_memzero((handle->max_paths + 1) *
+ sizeof(struct extent_path),
+ &newpath);
if (retval)
goto done;
- memset(newpath, 0,
- ((handle->max_depth+2) * sizeof(struct extent_path)));
} else {
tocopy = ext2fs_le16_to_cpu(eh->eh_entries) / 2;
}
new_node_start = ext2fs_le32_to_cpu(EXT_FIRST_INDEX(neweh)->ei_block);
+ /* then update the checksum */
+ retval = ext2fs_extent_block_csum_set(handle->fs, handle->ino, neweh);
+ if (retval)
+ goto done;
+
/* ...and write the new node block out to disk. */
retval = io_channel_write_blk64(handle->fs->io, new_node_pblk, 1,
block_buf);
/* current path now has fewer active entries, we copied some out */
if (handle->level == 0) {
memcpy(newpath, path,
- sizeof(struct extent_path) * (handle->max_depth+1));
+ sizeof(struct extent_path) * handle->max_paths);
handle->path = newpath;
newpath = path;
path = handle->path;
path->entries = 1;
path->left = path->max_entries - 1;
handle->max_depth++;
+ handle->max_paths++;
eh->eh_depth = ext2fs_cpu_to_le16(handle->max_depth);
} else {
path->entries -= tocopy;
&next_extent);
if (retval)
goto done;
- retval = ext2fs_extent_fix_parents(handle);
- if (retval)
- goto done;
} else
retval = ext2fs_extent_insert(handle,
EXT2_EXTENT_INSERT_AFTER, &newextent);
if (retval)
goto done;
- /* Now pointing at inserted extent; move back to prev */
+ retval = ext2fs_extent_fix_parents(handle);
+ if (retval)
+ goto done;
+ /*
+ * Now pointing at inserted extent; move back to prev.
+ *
+ * We cannot use EXT2_EXTENT_PREV to go back; note the
+ * subtlety in the comment for fix_parents().
+ */
+ retval = ext2fs_extent_goto(handle, logical);
+ if (retval)
+ goto done;
retval = ext2fs_extent_get(handle,
- EXT2_EXTENT_PREV_LEAF,
+ EXT2_EXTENT_CURRENT,
&extent);
if (retval)
goto done;
} else
retval = ext2fs_extent_insert(handle,
0, &newextent);
+ if (retval)
+ goto done;
+ retval = ext2fs_extent_fix_parents(handle);
if (retval)
goto done;
retval = ext2fs_extent_get(handle,
if (retval) {
r2 = ext2fs_extent_goto(handle, orig_lblk);
if (r2 == 0)
- ext2fs_extent_replace(handle, 0,
+ (void)ext2fs_extent_replace(handle, 0,
&orig_extent);
goto done;
}
r2 = ext2fs_extent_goto(handle,
newextent.e_lblk);
if (r2 == 0)
- ext2fs_extent_delete(handle, 0);
+ (void)ext2fs_extent_delete(handle, 0);
}
r2 = ext2fs_extent_goto(handle, orig_lblk);
if (r2 == 0)
- ext2fs_extent_replace(handle, 0, &orig_extent);
+ (void)ext2fs_extent_replace(handle, 0,
+ &orig_extent);
goto done;
}
}
}
+static errcode_t
+ext2fs_file_read_inline_data(ext2_file_t file, void *buf,
+ unsigned int wanted, unsigned int *got)
+{
+ ext2_filsys fs;
+ errcode_t retval;
+ unsigned int count = 0;
+ size_t size;
+
+ fs = file->fs;
+ retval = ext2fs_inline_data_get(fs, file->ino, &file->inode,
+ file->buf, &size);
+ if (retval)
+ return retval;
+
+ if (file->pos >= size)
+ goto out;
+
+ count = size - file->pos;
+ if (count > wanted)
+ count = wanted;
+ memcpy(buf, file->buf + file->pos, count);
+ file->pos += count;
+ buf += count;
+
+out:
+ if (got)
+ *got = count;
+ return retval;
+}
+
+
errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
unsigned int wanted, unsigned int *got)
{
EXT2_CHECK_MAGIC(file, EXT2_ET_MAGIC_EXT2_FILE);
fs = file->fs;
+ /* If an inode has inline data, things get complicated. */
+ if (file->inode.i_flags & EXT4_INLINE_DATA_FL)
+ return ext2fs_file_read_inline_data(file, buf, wanted, got);
+
while ((file->pos < EXT2_I_SIZE(&file->inode)) && (wanted > 0)) {
retval = sync_buffer_position(file);
if (retval)
}
+static errcode_t
+ext2fs_file_write_inline_data(ext2_file_t file, const void *buf,
+ unsigned int nbytes, unsigned int *written)
+{
+ ext2_filsys fs;
+ errcode_t retval;
+ unsigned int count = 0;
+ size_t size;
+
+ fs = file->fs;
+ retval = ext2fs_inline_data_get(fs, file->ino, &file->inode,
+ file->buf, &size);
+ if (retval)
+ return retval;
+
+ if (file->pos < size) {
+ count = nbytes - file->pos;
+ memcpy(file->buf + file->pos, buf, count);
+
+ retval = ext2fs_inline_data_set(fs, file->ino, &file->inode,
+ file->buf, count);
+ if (retval == EXT2_ET_INLINE_DATA_NO_SPACE)
+ goto expand;
+ if (retval)
+ return retval;
+
+ file->pos += count;
+
+ /* Update inode size */
+ if (count != 0 && EXT2_I_SIZE(&file->inode) < file->pos) {
+ errcode_t rc;
+
+ rc = ext2fs_file_set_size2(file, file->pos);
+ if (retval == 0)
+ retval = rc;
+ }
+
+ if (written)
+ *written = count;
+ return 0;
+ }
+
+expand:
+ retval = ext2fs_inline_data_expand(fs, file->ino);
+ if (retval)
+ return retval;
+ /*
+ * reload inode and return no space error
+ *
+ * XXX: file->inode could be copied from the outside
+ * in ext2fs_file_open2(). We have no way to modify
+ * the outside inode.
+ */
+ retval = ext2fs_read_inode(fs, file->ino, &file->inode);
+ if (retval)
+ return retval;
+ return EXT2_ET_INLINE_DATA_NO_SPACE;
+}
+
+
errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
unsigned int nbytes, unsigned int *written)
{
if (!(file->flags & EXT2_FILE_WRITE))
return EXT2_ET_FILE_RO;
+ /* If an inode has inline data, things get complicated. */
+ if (file->inode.i_flags & EXT4_INLINE_DATA_FL) {
+ retval = ext2fs_file_write_inline_data(file, buf, nbytes,
+ written);
+ if (retval != EXT2_ET_INLINE_DATA_NO_SPACE)
+ return retval;
+ /* fall through to read data from the block */
+ retval = 0;
+ }
+
while (nbytes > 0) {
retval = sync_buffer_position(file);
if (retval)
#include "ext2_fs.h"
#include "ext2fsP.h"
-static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
-
void ext2fs_free(ext2_filsys fs)
{
if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS))
ext2fs_free_mem(&fs);
}
-/*
- * Free the inode cache structure
- */
-static void ext2fs_free_inode_cache(struct ext2_inode_cache *icache)
-{
- if (--icache->refcount)
- return;
- if (icache->buffer)
- ext2fs_free_mem(&icache->buffer);
- if (icache->cache)
- ext2fs_free_mem(&icache->cache);
- icache->buffer_blk = 0;
- ext2fs_free_mem(&icache);
-}
-
/*
* This procedure frees a badblocks list.
*/
#endif
}
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
#define INC_STAT(map, name) map->stats.name
#else
#define INC_STAT(map, name) ;;
if (retval)
return retval;
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
if (gettimeofday(&bitmap->stats.created,
(struct timezone *) NULL) == -1) {
perror("gettimeofday");
return 0;
}
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
static void ext2fs_print_bmap_statistics(ext2fs_generic_bitmap bitmap)
{
struct ext2_bmap_statistics *stats = &bitmap->stats;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
float mark_seq_perc = 0.0, test_seq_perc = 0.0;
float mark_back_perc = 0.0, test_back_perc = 0.0;
#endif
double inuse;
struct timeval now;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
if (stats->test_count) {
test_seq_perc = ((float)stats->test_seq /
stats->test_count) * 100;
fprintf(stderr, "\n[+] %s bitmap (type %d)\n", bitmap->description,
stats->type);
fprintf(stderr, "=================================================\n");
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
fprintf(stderr, "%16llu bits long\n",
bitmap->real_end - bitmap->start);
fprintf(stderr, "%16lu copy_bmap\n%16lu resize_bmap\n",
fprintf(stderr, "%16llu bits marked backwards (%.2f%%)\n"
"%16.2f seconds in use\n",
stats->mark_back, mark_back_perc, inuse);
-#endif /* BMAP_STATS_OPS */
+#endif /* ENABLE_BMAP_STATS_OPS */
}
#endif
if (!EXT2FS_IS_64_BITMAP(bmap))
return;
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
if (getenv("E2FSPROGS_BITMAP_STATS")) {
ext2fs_print_bmap_statistics(bmap);
bmap->bitmap_ops->print_stats(bmap);
return retval;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
src->stats.copy_count++;
#endif
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
if (gettimeofday(&new_bmap->stats.created,
(struct timezone *) NULL) == -1) {
perror("gettimeofday");
ext2fs_free_mem(&new_bmap);
return retval;
}
- sprintf(new_descr, "copy of %s", descr);
+ strcpy(new_descr, "copy of ");
+ strcat(new_descr, descr);
new_bmap->description = new_descr;
}
arg >>= bitmap->cluster_bits;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
if (arg == bitmap->stats.last_marked + 1)
bitmap->stats.mark_seq++;
if (arg < bitmap->stats.last_marked)
arg >>= bitmap->cluster_bits;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bitmap->stats.test_count++;
if (arg == bitmap->stats.last_tested + 1)
bitmap->stats.test_seq++;
#define ENTRIES_PER_LINE 4
-#if CRC_LE_BITS <= 8
-#define LE_TABLE_SIZE (1 << CRC_LE_BITS)
+#if CRC_LE_BITS > 8
+# define LE_TABLE_ROWS (CRC_LE_BITS/8)
+# define LE_TABLE_SIZE 256
#else
-#define LE_TABLE_SIZE 256
+# define LE_TABLE_ROWS 1
+# define LE_TABLE_SIZE (1 << CRC_LE_BITS)
#endif
-#if CRC_BE_BITS <= 8
-#define BE_TABLE_SIZE (1 << CRC_BE_BITS)
+#if CRC_BE_BITS > 8
+# define BE_TABLE_ROWS (CRC_BE_BITS/8)
+# define BE_TABLE_SIZE 256
#else
-#define BE_TABLE_SIZE 256
+# define BE_TABLE_ROWS 1
+# define BE_TABLE_SIZE (1 << CRC_BE_BITS)
#endif
-static uint32_t crc32ctable_le[8][256];
-static uint32_t crc32ctable_be[8][256];
+static uint32_t crc32table_be[BE_TABLE_ROWS][256];
+static uint32_t crc32ctable_le[LE_TABLE_ROWS][256];
/**
- * crc32cinit_le() - allocate and initialize LE table data
+ * crc32init_le() - allocate and initialize LE table data
*
* crc is the crc of the byte i; other entries are filled in based on the
* fact that crctable[i^j] = crctable[i] ^ crctable[j].
crc32ctable_le[0][0] = 0;
for (i = LE_TABLE_SIZE >> 1; i; i >>= 1) {
- crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
+ crc = (crc >> 1) ^ ((crc & 1) ? CRC32C_POLY_LE : 0);
for (j = 0; j < LE_TABLE_SIZE; j += 2 * i)
crc32ctable_le[0][i + j] = crc ^ crc32ctable_le[0][j];
}
for (i = 0; i < LE_TABLE_SIZE; i++) {
crc = crc32ctable_le[0][i];
- for (j = 1; j < 8; j++) {
+ for (j = 1; j < LE_TABLE_ROWS; j++) {
crc = crc32ctable_le[0][crc & 0xff] ^ (crc >> 8);
crc32ctable_le[j][i] = crc;
}
}
/**
- * crc32cinit_be() - allocate and initialize BE table data
+ * crc32init_be() - allocate and initialize BE table data
*/
-static void crc32cinit_be(void)
+static void crc32init_be(void)
{
unsigned i, j;
uint32_t crc = 0x80000000;
- crc32ctable_be[0][0] = 0;
+ crc32table_be[0][0] = 0;
for (i = 1; i < BE_TABLE_SIZE; i <<= 1) {
crc = (crc << 1) ^ ((crc & 0x80000000) ? CRCPOLY_BE : 0);
for (j = 0; j < i; j++)
- crc32ctable_be[0][i + j] = crc ^ crc32ctable_be[0][j];
+ crc32table_be[0][i + j] = crc ^ crc32table_be[0][j];
}
for (i = 0; i < BE_TABLE_SIZE; i++) {
- crc = crc32ctable_be[0][i];
- for (j = 1; j < 8; j++) {
- crc = crc32ctable_be[0][(crc >> 24) & 0xff] ^
- (crc << 8);
- crc32ctable_be[j][i] = crc;
+ crc = crc32table_be[0][i];
+ for (j = 1; j < BE_TABLE_ROWS; j++) {
+ crc = crc32table_be[0][(crc >> 24) & 0xff] ^ (crc << 8);
+ crc32table_be[j][i] = crc;
}
}
}
-static void output_table(uint32_t table[8][256], int len, char trans)
+static void output_table(uint32_t (*table)[256], int rows, int len, char *trans)
{
int i, j;
- for (j = 0 ; j < 8; j++) {
- printf("static const uint32_t t%d_%ce[] = {", j, trans);
+ for (j = 0 ; j < rows; j++) {
+ printf("{");
for (i = 0; i < len - 1; i++) {
- if ((i % ENTRIES_PER_LINE) == 0)
+ if (i % ENTRIES_PER_LINE == 0)
printf("\n");
- printf("to%ce(0x%8.8xL),", trans, table[j][i]);
- if ((i % ENTRIES_PER_LINE) != (ENTRIES_PER_LINE - 1))
- printf(" ");
- }
- printf("to%ce(0x%8.8xL)};\n\n", trans, table[j][len - 1]);
-
- if (trans == 'l') {
- if ((j+1)*8 >= CRC_LE_BITS)
- break;
- } else {
- if ((j+1)*8 >= CRC_BE_BITS)
- break;
+ printf("%s(0x%8.8xL), ", trans, table[j][i]);
}
+ printf("%s(0x%8.8xL)},\n", trans, table[j][len - 1]);
}
}
int main(int argc, char **argv)
{
- printf("/*\n");
- printf(" * crc32ctable.h - CRC32c tables\n");
- printf(" * this file is generated - do not edit\n");
- printf(" * # gen_crc32ctable > crc32c_table.h\n");
- printf(" * with\n");
- printf(" * CRC_LE_BITS = %d\n", CRC_LE_BITS);
- printf(" * CRC_BE_BITS = %d\n", CRC_BE_BITS);
- printf(" */\n");
- printf("#include <stdint.h>\n");
+ printf("/* this file is generated - do not edit */\n\n");
+ if (CRC_BE_BITS > 1) {
+ crc32init_be();
+ printf("static const uint32_t "
+ "crc32table_be[%d][%d] = {",
+ BE_TABLE_ROWS, BE_TABLE_SIZE);
+ output_table(crc32table_be, LE_TABLE_ROWS,
+ BE_TABLE_SIZE, "tobe");
+ printf("};\n");
+ }
if (CRC_LE_BITS > 1) {
crc32cinit_le();
- output_table(crc32ctable_le, LE_TABLE_SIZE, 'l');
- }
-
- if (CRC_BE_BITS > 1) {
- crc32cinit_be();
- output_table(crc32ctable_be, BE_TABLE_SIZE, 'b');
+ printf("static const uint32_t "
+ "crc32ctable_le[%d][%d] = {",
+ LE_TABLE_ROWS, LE_TABLE_SIZE);
+ output_table(crc32ctable_le, LE_TABLE_ROWS,
+ LE_TABLE_SIZE, "tole");
+ printf("};\n");
}
return 0;
--- /dev/null
+/*
+ * get_num_dirs.c -- calculate number of directories
+ *
+ * Copyright 1997 by Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include <stdio.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <string.h>
+#include <time.h>
+
+#include "ext2_fs.h"
+#include "ext2fsP.h"
+
+/*
+ * Returns the number of directories in the filesystem as reported by
+ * the group descriptors. Of course, the group descriptors could be
+ * wrong!
+ */
+errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs)
+{
+ dgrp_t i;
+ ext2_ino_t num_dirs, max_dirs;
+
+ EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
+
+ num_dirs = 0;
+ max_dirs = fs->super->s_inodes_per_group;
+ for (i = 0; i < fs->group_desc_count; i++) {
+ if (ext2fs_bg_used_dirs_count(fs, i) > max_dirs)
+ num_dirs += max_dirs / 8;
+ else
+ num_dirs += ext2fs_bg_used_dirs_count(fs, i);
+ }
+ if (num_dirs > fs->super->s_inodes_count)
+ num_dirs = fs->super->s_inodes_count;
+
+ *ret_num_dirs = num_dirs;
+
+ return 0;
+}
+
{
struct get_pathname_struct *gp;
errcode_t retval;
+ int name_len = ext2fs_dirent_name_len(dirent);
gp = (struct get_pathname_struct *) priv_data;
- if (((dirent->name_len & 0xFF) == 2) &&
- !strncmp(dirent->name, "..", 2))
+ if ((name_len == 2) && !strncmp(dirent->name, "..", 2))
gp->parent = dirent->inode;
if (dirent->inode == gp->search_ino) {
- retval = ext2fs_get_mem((dirent->name_len & 0xFF) + 1,
- &gp->name);
+ retval = ext2fs_get_mem(name_len + 1, &gp->name);
if (retval) {
gp->errcode = retval;
return DIRENT_ABORT;
}
- strncpy(gp->name, dirent->name, (dirent->name_len & 0xFF));
- gp->name[dirent->name_len & 0xFF] = '\0';
+ strncpy(gp->name, dirent->name, name_len);
+ gp->name[name_len] = '\0';
return DIRENT_ABORT;
}
return 0;
goto errout;
uuid_unparse(fs->super->s_uuid, uuid);
sprintf(fn, "%s/%s-icount-XXXXXX", tdb_dir, uuid);
- icount->tdb_fn = fn;
save_umask = umask(077);
fd = mkstemp(fn);
if (fd < 0) {
retval = errno;
+ ext2fs_free_mem(&fn);
goto errout;
}
+ icount->tdb_fn = fn;
umask(save_umask);
/*
* This is an overestimate of the size that we will need; the
* bitmaps will be accounted for when allocated).
*/
free_blocks = 0;
- csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ csum_flag = ext2fs_has_group_desc_csum(fs);
reserved_inos = super->s_first_ino;
for (i = 0; i < fs->group_desc_count; i++) {
/*
--- /dev/null
+/*
+ * inline_data.c --- data in inode
+ *
+ * Copyright (C) 2012 Zheng Liu <wenqing.lz@taobao.com>
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <time.h>
+
+#include "ext2_fs.h"
+#include "ext2_ext_attr.h"
+
+#include "ext2fs.h"
+#include "ext2fsP.h"
+
+struct ext2_inline_data {
+ ext2_filsys fs;
+ ext2_ino_t ino;
+ size_t ea_size; /* the size of inline data in ea area */
+ void *ea_data;
+};
+
+static errcode_t ext2fs_inline_data_ea_set(struct ext2_inline_data *data)
+{
+ struct ext2_xattr_handle *handle;
+ errcode_t retval;
+
+ retval = ext2fs_xattrs_open(data->fs, data->ino, &handle);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_xattrs_read(handle);
+ if (retval)
+ goto err;
+
+ retval = ext2fs_xattr_set(handle, "system.data",
+ data->ea_data, data->ea_size);
+ if (retval)
+ goto err;
+
+ retval = ext2fs_xattrs_write(handle);
+
+err:
+ (void) ext2fs_xattrs_close(&handle);
+ return retval;
+}
+
+static errcode_t ext2fs_inline_data_ea_get(struct ext2_inline_data *data)
+{
+ struct ext2_xattr_handle *handle;
+ errcode_t retval;
+
+ data->ea_size = 0;
+ data->ea_data = 0;
+
+ retval = ext2fs_xattrs_open(data->fs, data->ino, &handle);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_xattrs_read(handle);
+ if (retval)
+ goto err;
+
+ retval = ext2fs_xattr_get(handle, "system.data",
+ (void **)&data->ea_data, &data->ea_size);
+ if (retval)
+ goto err;
+
+err:
+ (void) ext2fs_xattrs_close(&handle);
+ return retval;
+}
+
+errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino)
+{
+ struct ext2_inline_data data;
+
+ data.fs = fs;
+ data.ino = ino;
+ data.ea_size = 0;
+ data.ea_data = "";
+ return ext2fs_inline_data_ea_set(&data);
+}
+
+errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino, size_t *size)
+{
+ struct ext2_inode inode;
+ struct ext2_inline_data data;
+ errcode_t retval;
+
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval)
+ return retval;
+
+ if (!(inode.i_flags & EXT4_INLINE_DATA_FL))
+ return EXT2_ET_NO_INLINE_DATA;
+
+ data.fs = fs;
+ data.ino = ino;
+ retval = ext2fs_inline_data_ea_get(&data);
+ if (retval)
+ return retval;
+
+ *size = EXT4_MIN_INLINE_DATA_SIZE + data.ea_size;
+ return ext2fs_free_mem(&data.ea_data);
+}
+
+int ext2fs_inline_data_dir_iterate(ext2_filsys fs, ext2_ino_t ino,
+ void *priv_data)
+{
+ struct dir_context *ctx;
+ struct ext2_inode inode;
+ struct ext2_dir_entry dirent;
+ struct ext2_inline_data data;
+ int ret = BLOCK_ABORT;
+ e2_blkcnt_t blockcnt = 0;
+ char *old_buf;
+ unsigned int old_buflen;
+ int old_flags;
+
+ ctx = (struct dir_context *)priv_data;
+ old_buf = ctx->buf;
+ old_buflen = ctx->buflen;
+ old_flags = ctx->flags;
+ ctx->flags |= DIRENT_FLAG_INCLUDE_INLINE_DATA;
+
+ ctx->errcode = ext2fs_read_inode(fs, ino, &inode);
+ if (ctx->errcode)
+ goto out;
+
+ if (!(inode.i_flags & EXT4_INLINE_DATA_FL)) {
+ ctx->errcode = EXT2_ET_NO_INLINE_DATA;
+ goto out;
+ }
+
+ if (!LINUX_S_ISDIR(inode.i_mode)) {
+ ctx->errcode = EXT2_ET_NO_DIRECTORY;
+ goto out;
+ }
+ ret = 0;
+
+ /* we first check '.' and '..' dir */
+ dirent.inode = ino;
+ dirent.name_len = 1;
+ ext2fs_set_rec_len(fs, EXT2_DIR_REC_LEN(2), &dirent);
+ dirent.name[0] = '.';
+ dirent.name[1] = '\0';
+ ctx->buf = (char *)&dirent;
+ ext2fs_get_rec_len(fs, &dirent, &ctx->buflen);
+ ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
+ if (ret & BLOCK_ABORT)
+ goto out;
+
+ dirent.inode = ext2fs_le32_to_cpu(inode.i_block[0]);
+ dirent.name_len = 2;
+ ext2fs_set_rec_len(fs, EXT2_DIR_REC_LEN(3), &dirent);
+ dirent.name[0] = '.';
+ dirent.name[1] = '.';
+ dirent.name[2] = '\0';
+ ctx->buf = (char *)&dirent;
+ ext2fs_get_rec_len(fs, &dirent, &ctx->buflen);
+ ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
+ if (ret & BLOCK_INLINE_DATA_CHANGED) {
+ errcode_t err;
+
+ inode.i_block[0] = ext2fs_cpu_to_le32(dirent.inode);
+ err = ext2fs_write_inode(fs, ino, &inode);
+ if (err)
+ goto out;
+ ret &= ~BLOCK_INLINE_DATA_CHANGED;
+ }
+ if (ret & BLOCK_ABORT)
+ goto out;
+
+ ctx->buf = (char *)inode.i_block + EXT4_INLINE_DATA_DOTDOT_SIZE;
+ ctx->buflen = EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE;
+#ifdef WORDS_BIGENDIAN
+ ctx->errcode = ext2fs_dirent_swab_in2(fs, ctx->buf, ctx->buflen, 0);
+ if (ctx->errcode) {
+ ret |= BLOCK_ABORT;
+ goto out;
+ }
+#endif
+ ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
+ if (ret & BLOCK_INLINE_DATA_CHANGED) {
+#ifdef WORDS_BIGENDIAN
+ ctx->errcode = ext2fs_dirent_swab_out2(fs, ctx->buf,
+ ctx->buflen, 0);
+ if (ctx->errcode) {
+ ret |= BLOCK_ABORT;
+ goto out;
+ }
+#endif
+ ctx->errcode = ext2fs_write_inode(fs, ino, &inode);
+ if (ctx->errcode)
+ ret |= BLOCK_ABORT;
+ ret &= ~BLOCK_INLINE_DATA_CHANGED;
+ }
+ if (ret & BLOCK_ABORT)
+ goto out;
+
+ data.fs = fs;
+ data.ino = ino;
+ ctx->errcode = ext2fs_inline_data_ea_get(&data);
+ if (ctx->errcode) {
+ ret |= BLOCK_ABORT;
+ goto out;
+ }
+ if (data.ea_size <= 0)
+ goto out;
+
+ ctx->buf = data.ea_data;
+ ctx->buflen = data.ea_size;
+#ifdef WORDS_BIGENDIAN
+ ctx->errcode = ext2fs_dirent_swab_in2(fs, ctx->buf, ctx->buflen, 0);
+ if (ctx->errcode) {
+ ret |= BLOCK_ABORT;
+ goto out;
+ }
+#endif
+
+ ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
+ if (ret & BLOCK_INLINE_DATA_CHANGED) {
+#ifdef WORDS_BIGENDIAN
+ ctx->errcode = ext2fs_dirent_swab_out2(fs, ctx->buf,
+ ctx->buflen, 0);
+ if (ctx->errcode) {
+ ret |= BLOCK_ABORT;
+ goto out1;
+ }
+#endif
+ ctx->errcode = ext2fs_inline_data_ea_set(&data);
+ if (ctx->errcode)
+ ret |= BLOCK_ABORT;
+ }
+
+out1:
+ ext2fs_free_mem(&data.ea_data);
+out:
+ ctx->buf = old_buf;
+ ctx->buflen = old_buflen;
+ ctx->flags = old_flags;
+ ret &= ~(BLOCK_ABORT | BLOCK_INLINE_DATA_CHANGED);
+ return ret;
+}
+
+errcode_t ext2fs_inline_data_ea_remove(ext2_filsys fs, ext2_ino_t ino)
+{
+ struct ext2_xattr_handle *handle;
+ errcode_t retval;
+
+ retval = ext2fs_xattrs_open(fs, ino, &handle);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_xattrs_read(handle);
+ if (retval)
+ goto err;
+
+ retval = ext2fs_xattr_remove(handle, "system.data");
+ if (retval)
+ goto err;
+
+ retval = ext2fs_xattrs_write(handle);
+
+err:
+ (void) ext2fs_xattrs_close(&handle);
+ return retval;
+}
+
+static errcode_t ext2fs_inline_data_convert_dir(ext2_filsys fs, ext2_ino_t ino,
+ char *bbuf, char *ibuf, int size)
+{
+ struct ext2_dir_entry *dir, *dir2;
+ struct ext2_dir_entry_tail *t;
+ errcode_t retval;
+ unsigned int offset;
+ int csum_size = 0;
+ int filetype = 0;
+ int rec_len;
+
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dir_entry_tail);
+
+ /* Create '.' and '..' */
+ if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT2_FEATURE_INCOMPAT_FILETYPE))
+ filetype = EXT2_FT_DIR;
+
+ /*
+ * Set up entry for '.'
+ */
+ dir = (struct ext2_dir_entry *) bbuf;
+ dir->inode = ino;
+ ext2fs_dirent_set_name_len(dir, 1);
+ ext2fs_dirent_set_file_type(dir, filetype);
+ dir->name[0] = '.';
+ rec_len = (fs->blocksize - csum_size) - EXT2_DIR_REC_LEN(1);
+ dir->rec_len = EXT2_DIR_REC_LEN(1);
+
+ /*
+ * Set up entry for '..'
+ */
+ dir = (struct ext2_dir_entry *) (bbuf + dir->rec_len);
+ dir->rec_len = EXT2_DIR_REC_LEN(2);
+ dir->inode = ext2fs_le32_to_cpu(((__u32 *)ibuf)[0]);
+ ext2fs_dirent_set_name_len(dir, 2);
+ ext2fs_dirent_set_file_type(dir, filetype);
+ dir->name[0] = '.';
+ dir->name[1] = '.';
+
+ /*
+ * Ajust the last rec_len
+ */
+ offset = EXT2_DIR_REC_LEN(1) + EXT2_DIR_REC_LEN(2);
+ dir = (struct ext2_dir_entry *) (bbuf + offset);
+ memcpy(bbuf + offset, ibuf + EXT4_INLINE_DATA_DOTDOT_SIZE,
+ size - EXT4_INLINE_DATA_DOTDOT_SIZE);
+ size += EXT2_DIR_REC_LEN(1) + EXT2_DIR_REC_LEN(2) -
+ EXT4_INLINE_DATA_DOTDOT_SIZE;
+
+ do {
+ dir2 = dir;
+ retval = ext2fs_get_rec_len(fs, dir, &rec_len);
+ if (retval)
+ goto err;
+ offset += rec_len;
+ dir = (struct ext2_dir_entry *) (bbuf + offset);
+ } while (offset < size);
+ rec_len += fs->blocksize - csum_size - offset;
+ retval = ext2fs_set_rec_len(fs, rec_len, dir2);
+ if (retval)
+ goto err;
+
+ if (csum_size) {
+ t = EXT2_DIRENT_TAIL(bbuf, fs->blocksize);
+ ext2fs_initialize_dirent_tail(fs, t);
+ }
+
+err:
+ return retval;
+}
+
+static errcode_t
+ext2fs_inline_data_dir_expand(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode, char *buf, size_t size)
+{
+ errcode_t retval;
+ blk64_t blk;
+ char *blk_buf;
+
+ retval = ext2fs_get_memzero(fs->blocksize, &blk_buf);
+ if (retval)
+ return retval;
+
+#ifdef WORDS_BIGENDIAN
+ retval = ext2fs_dirent_swab_in2(fs, buf, size, 0);
+ if (retval)
+ goto errout;
+#endif
+
+ /* Adjust the rec_len */
+ retval = ext2fs_inline_data_convert_dir(fs, ino, blk_buf, buf, size);
+ /* Allocate a new block */
+ retval = ext2fs_new_block2(fs, 0, 0, &blk);
+ if (retval)
+ goto errout;
+ retval = ext2fs_write_dir_block4(fs, blk, blk_buf, 0, ino);
+ if (retval)
+ goto errout;
+
+ /* Update inode */
+ if (EXT2_HAS_INCOMPAT_FEATURE(fs->super, EXT3_FEATURE_INCOMPAT_EXTENTS))
+ inode->i_flags |= EXT4_EXTENTS_FL;
+ inode->i_flags &= ~EXT4_INLINE_DATA_FL;
+ retval = ext2fs_iblk_add_blocks(fs, inode, 1);
+ if (retval)
+ goto errout;
+ inode->i_size = fs->blocksize;
+ retval = ext2fs_bmap2(fs, ino, inode, 0, BMAP_SET, 0, 0, &blk);
+ if (retval)
+ goto errout;
+ retval = ext2fs_write_inode(fs, ino, inode);
+ if (retval)
+ goto errout;
+ ext2fs_block_alloc_stats(fs, blk, +1);
+
+errout:
+ ext2fs_free_mem(&blk_buf);
+ return retval;
+}
+
+static errcode_t
+ext2fs_inline_data_file_expand(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode, char *buf, size_t size)
+{
+ ext2_file_t e2_file;
+ errcode_t retval;
+
+ /* Update inode */
+ if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT3_FEATURE_INCOMPAT_EXTENTS)) {
+ int i;
+ struct ext3_extent_header *eh;
+
+ eh = (struct ext3_extent_header *) &inode->i_block[0];
+ eh->eh_depth = 0;
+ eh->eh_entries = 0;
+ eh->eh_magic = EXT3_EXT_MAGIC;
+ i = (sizeof(inode->i_block) - sizeof(*eh)) /
+ sizeof(struct ext3_extent);
+ eh->eh_max = ext2fs_cpu_to_le16(i);
+ inode->i_flags |= EXT4_EXTENTS_FL;
+ }
+ inode->i_flags &= ~EXT4_INLINE_DATA_FL;
+ inode->i_size = 0;
+ retval = ext2fs_write_inode(fs, ino, inode);
+ if (retval)
+ return retval;
+
+ /* Write out the block buffer */
+ retval = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &e2_file);
+ if (retval)
+ return retval;
+ retval = ext2fs_file_write(e2_file, buf, size, 0);
+ ext2fs_file_close(e2_file);
+ return retval;
+}
+
+errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino)
+{
+ struct ext2_inode inode;
+ struct ext2_inline_data data;
+ errcode_t retval;
+ size_t inline_size;
+ char *inline_buf = 0;
+
+ EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
+
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval)
+ return retval;
+
+ if (!(inode.i_flags & EXT4_INLINE_DATA_FL))
+ return EXT2_ET_NO_INLINE_DATA;
+
+ data.fs = fs;
+ data.ino = ino;
+ retval = ext2fs_inline_data_ea_get(&data);
+ if (retval)
+ return retval;
+ inline_size = data.ea_size + EXT4_MIN_INLINE_DATA_SIZE;
+ retval = ext2fs_get_mem(inline_size, &inline_buf);
+ if (retval)
+ goto errout;
+
+ memcpy(inline_buf, (void *)inode.i_block, EXT4_MIN_INLINE_DATA_SIZE);
+ if (data.ea_size > 0) {
+ memcpy(inline_buf + EXT4_MIN_INLINE_DATA_SIZE,
+ data.ea_data, data.ea_size);
+ }
+
+ memset((void *)inode.i_block, 0, EXT4_MIN_INLINE_DATA_SIZE);
+ /*
+ * NOTE: We must do this write -> ea_remove -> read cycle here because
+ * removing the inline data EA can free the EA block, which is a change
+ * that our stack copy of the inode will never see. If that happens,
+ * we can end up with the EA block and lblk 0 pointing to the same
+ * pblk, which is bad news.
+ */
+ retval = ext2fs_write_inode(fs, ino, &inode);
+ if (retval)
+ goto errout;
+ retval = ext2fs_inline_data_ea_remove(fs, ino);
+ if (retval)
+ goto errout;
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval)
+ goto errout;
+
+ if (LINUX_S_ISDIR(inode.i_mode)) {
+ retval = ext2fs_inline_data_dir_expand(fs, ino, &inode,
+ inline_buf, inline_size);
+ } else {
+ retval = ext2fs_inline_data_file_expand(fs, ino, &inode,
+ inline_buf, inline_size);
+ }
+
+errout:
+ if (inline_buf)
+ ext2fs_free_mem(&inline_buf);
+ ext2fs_free_mem(&data.ea_data);
+ return retval;
+}
+
+/*
+ * When caller uses this function to retrieve the inline data, it must
+ * allocate a buffer which has the size of inline data. The size of
+ * inline data can be know by ext2fs_inline_data_get_size().
+ */
+errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ void *buf, size_t *size)
+{
+ struct ext2_inode inode_buf;
+ struct ext2_inline_data data;
+ errcode_t retval;
+
+ if (!inode) {
+ retval = ext2fs_read_inode(fs, ino, &inode_buf);
+ if (retval)
+ return retval;
+ inode = &inode_buf;
+ }
+
+ data.fs = fs;
+ data.ino = ino;
+ retval = ext2fs_inline_data_ea_get(&data);
+ if (retval)
+ return retval;
+
+ memcpy(buf, (void *)inode->i_block, EXT4_MIN_INLINE_DATA_SIZE);
+ if (data.ea_size > 0)
+ memcpy(buf + EXT4_MIN_INLINE_DATA_SIZE,
+ data.ea_data, data.ea_size);
+
+ if (size)
+ *size = EXT4_MIN_INLINE_DATA_SIZE + data.ea_size;
+ ext2fs_free_mem(&data.ea_data);
+ return 0;
+}
+
+errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ void *buf, size_t size)
+{
+ struct ext2_inode inode_buf;
+ struct ext2_inline_data data;
+ errcode_t retval;
+ size_t free_ea_size, existing_size, free_inode_size;
+
+ if (!inode) {
+ retval = ext2fs_read_inode(fs, ino, &inode_buf);
+ if (retval)
+ return retval;
+ inode = &inode_buf;
+ }
+
+ if (size <= EXT4_MIN_INLINE_DATA_SIZE) {
+ memcpy((void *)inode->i_block, buf, size);
+ return ext2fs_write_inode(fs, ino, inode);
+ }
+
+ retval = ext2fs_xattr_inode_max_size(fs, ino, &free_ea_size);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_inline_data_size(fs, ino, &existing_size);
+ if (retval)
+ return retval;
+
+ if (existing_size < EXT4_MIN_INLINE_DATA_SIZE)
+ free_inode_size = EXT4_MIN_INLINE_DATA_SIZE - existing_size;
+ else
+ free_inode_size = 0;
+
+ if (size > existing_size + free_ea_size + free_inode_size)
+ return EXT2_ET_INLINE_DATA_NO_SPACE;
+
+ memcpy((void *)inode->i_block, buf, EXT4_MIN_INLINE_DATA_SIZE);
+ retval = ext2fs_write_inode(fs, ino, inode);
+ if (retval)
+ return retval;
+ data.fs = fs;
+ data.ino = ino;
+ data.ea_size = size - EXT4_MIN_INLINE_DATA_SIZE;
+ data.ea_data = buf + EXT4_MIN_INLINE_DATA_SIZE;
+ return ext2fs_inline_data_ea_set(&data);
+}
+
+#ifdef DEBUG
+#include "e2p/e2p.h"
+
+/*
+ * The length of buffer is set to 64 because in inode's i_block member it only
+ * can save 60 bytes. Thus this value can let the data being saved in extra
+ * space.
+ */
+#define BUFF_SIZE (64)
+
+static errcode_t file_test(ext2_filsys fs)
+{
+ struct ext2_inode inode;
+ ext2_ino_t newfile;
+ errcode_t retval;
+ size_t size;
+ char *buf = 0, *cmpbuf = 0;
+ int i;
+
+ /* create a new file */
+ retval = ext2fs_new_inode(fs, 2, 010755, 0, &newfile);
+ if (retval) {
+ com_err("file_test", retval, "while allocaing a new inode");
+ return 1;
+ }
+
+ memset(&inode, 0, sizeof(inode));
+ inode.i_flags |= EXT4_INLINE_DATA_FL;
+ inode.i_size = EXT4_MIN_INLINE_DATA_SIZE;
+ inode.i_mode = LINUX_S_IFREG;
+ retval = ext2fs_write_new_inode(fs, newfile, &inode);
+ if (retval) {
+ com_err("file_test", retval, "while writting a new inode");
+ return 1;
+ }
+
+ retval = ext2fs_inline_data_init(fs, newfile);
+ if (retval) {
+ com_err("file_test", retval, "while init 'system.data'");
+ return 1;
+ }
+
+ retval = ext2fs_inline_data_size(fs, newfile, &size);
+ if (retval) {
+ com_err("file_test", retval, "while getting size");
+ return 1;
+ }
+
+ if (size != EXT4_MIN_INLINE_DATA_SIZE) {
+ fprintf(stderr,
+ "tst_inline_data: size of inline data is wrong\n");
+ return 1;
+ }
+
+ ext2fs_get_mem(BUFF_SIZE, &buf);
+ memset(buf, 'a', BUFF_SIZE);
+ retval = ext2fs_inline_data_set(fs, newfile, 0, buf, BUFF_SIZE);
+ if (retval) {
+ com_err("file_test", retval,
+ "while setting inline data %s", buf);
+ goto err;
+ }
+
+ ext2fs_get_mem(BUFF_SIZE, &cmpbuf);
+ retval = ext2fs_inline_data_get(fs, newfile, 0, cmpbuf, &size);
+ if (retval) {
+ com_err("file_test", retval, "while getting inline data");
+ goto err;
+ }
+
+ if (size != BUFF_SIZE) {
+ fprintf(stderr,
+ "tst_inline_data: size %lu != buflen %lu\n",
+ size, BUFF_SIZE);
+ retval = 1;
+ goto err;
+ }
+
+ if (memcmp(buf, cmpbuf, BUFF_SIZE)) {
+ fprintf(stderr, "tst_inline_data: buf != cmpbuf\n");
+ retval = 1;
+ goto err;
+ }
+
+ retval = ext2fs_punch(fs, newfile, 0, 0, 0, ~0ULL);
+ if (retval) {
+ com_err("file_test", retval, "while truncating inode");
+ goto err;
+ }
+
+ /* reload inode and check isize */
+ ext2fs_read_inode(fs, newfile, &inode);
+ if (inode.i_size != 0) {
+ fprintf(stderr, "tst_inline_data: i_size should be 0\n");
+ retval = 1;
+ }
+
+err:
+ if (cmpbuf)
+ ext2fs_free_mem(&cmpbuf);
+ if (buf)
+ ext2fs_free_mem(&buf);
+ return retval;
+}
+
+static errcode_t dir_test(ext2_filsys fs)
+{
+ const char *dot_name = ".";
+ const char *stub_name = "stub";
+ const char *parent_name = "test";
+ ext2_ino_t parent, dir, tmp;
+ errcode_t retval;
+ char dirname[PATH_MAX];
+ int i;
+
+ retval = ext2fs_mkdir(fs, 11, 11, stub_name);
+ if (retval) {
+ com_err("dir_test", retval, "while creating %s dir", stub_name);
+ return retval;
+ }
+
+ retval = ext2fs_mkdir(fs, 11, 0, parent_name);
+ if (retval) {
+ com_err("dir_test", retval,
+ "while creating %s dir", parent_name);
+ return retval;
+ }
+
+ retval = ext2fs_lookup(fs, 11, parent_name, strlen(parent_name),
+ 0, &parent);
+ if (retval) {
+ com_err("dir_test", retval,
+ "while looking up %s dir", parent_name);
+ return retval;
+ }
+
+ retval = ext2fs_lookup(fs, parent, dot_name, strlen(dot_name),
+ 0, &tmp);
+ if (retval) {
+ com_err("dir_test", retval,
+ "while looking up %s dir", parent_name);
+ return retval;
+ }
+
+ if (parent != tmp) {
+ fprintf(stderr, "tst_inline_data: parent (%lu) != tmp (%lu)\n",
+ parent, tmp);
+ return 1;
+ }
+
+ for (i = 0, dir = 13; i < 4; i++, dir++) {
+ tmp = 0;
+ snprintf(dirname, PATH_MAX, "%d", i);
+ retval = ext2fs_mkdir(fs, parent, 0, dirname);
+ if (retval) {
+ com_err("dir_test", retval,
+ "while creating %s dir", dirname);
+ return retval;
+ }
+
+ retval = ext2fs_lookup(fs, parent, dirname, strlen(dirname),
+ 0, &tmp);
+ if (retval) {
+ com_err("dir_test", retval,
+ "while looking up %s dir", parent_name);
+ return retval;
+ }
+
+ if (dir != tmp) {
+ fprintf(stderr, "tst_inline_data: dir (%lu) != tmp (%lu)\n",
+ dir, tmp);
+ return 1;
+ }
+ }
+
+ snprintf(dirname, PATH_MAX, "%d", i);
+ retval = ext2fs_mkdir(fs, parent, 0, dirname);
+ if (retval && retval != EXT2_ET_DIR_NO_SPACE) {
+ com_err("dir_test", retval, "while creating %s dir", dirname);
+ return retval;
+ }
+
+ retval = ext2fs_expand_dir(fs, parent);
+ if (retval) {
+ com_err("dir_test", retval, "while expanding %s dir", parent_name);
+ return retval;
+ }
+
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ ext2_filsys fs;
+ struct ext2_super_block param;
+ errcode_t retval;
+ int i;
+
+ /* setup */
+ initialize_ext2_error_table();
+
+ memset(¶m, 0, sizeof(param));
+ ext2fs_blocks_count_set(¶m, 32768);
+ param.s_inodes_count = 100;
+
+ param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_INLINE_DATA;
+ param.s_rev_level = EXT2_DYNAMIC_REV;
+ param.s_inode_size = 256;
+
+ retval = ext2fs_initialize("test fs", EXT2_FLAG_64BITS, ¶m,
+ test_io_manager, &fs);
+ if (retval) {
+ com_err("setup", retval,
+ "while initializing filesystem");
+ exit(1);
+ }
+
+ retval = ext2fs_allocate_tables(fs);
+ if (retval) {
+ com_err("setup", retval,
+ "while allocating tables for test filesysmte");
+ exit(1);
+ }
+
+ /* initialize inode cache */
+ if (!fs->icache) {
+ struct ext2_inode inode;
+ ext2_ino_t first_ino = EXT2_FIRST_INO(fs->super);
+ int i;
+
+ /* we just want to init inode cache. So ignore error */
+ ext2fs_create_inode_cache(fs, 16);
+ if (!fs->icache) {
+ fprintf(stderr,
+ "tst_inline_data: init inode cache failed\n");
+ exit(1);
+ }
+
+ /* setup inode cache */
+ for (i = 0; i < fs->icache->cache_size; i++)
+ fs->icache->cache[i].ino = first_ino++;
+ }
+
+ /* test */
+ if (file_test(fs)) {
+ fprintf(stderr, "tst_inline_data(FILE): FAILED\n");
+ return 1;
+ }
+ printf("tst_inline_data(FILE): OK\n");
+
+ if (dir_test(fs)) {
+ fprintf(stderr, "tst_inline_data(DIR): FAILED\n");
+ return 1;
+ }
+ printf("tst_inline_data(DIR): OK\n");
+
+ return 0;
+}
+#endif
return 0;
}
-static errcode_t create_icache(ext2_filsys fs)
+/*
+ * Free the inode cache structure
+ */
+void ext2fs_free_inode_cache(struct ext2_inode_cache *icache)
+{
+ int i;
+
+ if (--icache->refcount)
+ return;
+ if (icache->buffer)
+ ext2fs_free_mem(&icache->buffer);
+ for (i = 0; i < icache->cache_size; i++)
+ ext2fs_free_mem(&icache->cache[i].inode);
+ if (icache->cache)
+ ext2fs_free_mem(&icache->cache);
+ icache->buffer_blk = 0;
+ ext2fs_free_mem(&icache);
+}
+
+errcode_t ext2fs_create_inode_cache(ext2_filsys fs, unsigned int cache_size)
{
+ int i;
errcode_t retval;
if (fs->icache)
memset(fs->icache, 0, sizeof(struct ext2_inode_cache));
retval = ext2fs_get_mem(fs->blocksize, &fs->icache->buffer);
- if (retval) {
- ext2fs_free_mem(&fs->icache);
- return retval;
- }
+ if (retval)
+ goto errout;
+
fs->icache->buffer_blk = 0;
fs->icache->cache_last = -1;
- fs->icache->cache_size = 4;
+ fs->icache->cache_size = cache_size;
fs->icache->refcount = 1;
retval = ext2fs_get_array(fs->icache->cache_size,
sizeof(struct ext2_inode_cache_ent),
&fs->icache->cache);
- if (retval) {
- ext2fs_free_mem(&fs->icache->buffer);
- ext2fs_free_mem(&fs->icache);
- return retval;
+ if (retval)
+ goto errout;
+
+ for (i = 0; i < fs->icache->cache_size; i++) {
+ retval = ext2fs_get_mem(EXT2_INODE_SIZE(fs->super),
+ &fs->icache->cache[i].inode);
+ if (retval)
+ goto errout;
}
+
ext2fs_flush_icache(fs);
return 0;
+errout:
+ ext2fs_free_inode_cache(fs->icache);
+ fs->icache = 0;
+ return retval;
}
errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
scan->current_group);
scan->inodes_left = EXT2_INODES_PER_GROUP(scan->fs->super);
scan->blocks_left = scan->fs->inode_blocks_per_group;
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ if (ext2fs_has_group_desc_csum(fs)) {
scan->inodes_left -=
ext2fs_bg_itable_unused(fs, scan->current_group);
scan->blocks_left =
}
if (scan->fs->badblocks && scan->fs->badblocks->num)
scan->scan_flags |= EXT2_SF_CHK_BADBLOCKS;
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ if (ext2fs_has_group_desc_csum(fs))
scan->scan_flags |= EXT2_SF_DO_LAZY;
*ret_scan = scan;
return 0;
scan->bytes_left = 0;
scan->inodes_left = EXT2_INODES_PER_GROUP(fs->super);
scan->blocks_left = fs->inode_blocks_per_group;
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ if (ext2fs_has_group_desc_csum(fs)) {
scan->inodes_left -=
ext2fs_bg_itable_unused(fs, scan->current_group);
scan->blocks_left =
{
errcode_t retval;
int extra_bytes = 0;
+ const int length = EXT2_INODE_SIZE(scan->fs->super);
+ struct ext2_inode_large *iptr = (struct ext2_inode_large *)inode;
EXT2_CHECK_MAGIC(scan, EXT2_ET_MAGIC_INODE_SCAN);
#endif
}
+ if (bufsize < length) {
+ retval = ext2fs_get_mem(length, &iptr);
+ if (retval)
+ return retval;
+ }
+
retval = 0;
if (extra_bytes) {
memcpy(scan->temp_buffer+extra_bytes, scan->ptr,
scan->ptr += scan->inode_size - extra_bytes;
scan->bytes_left -= scan->inode_size - extra_bytes;
+ /* Verify the inode checksum. */
+ if (!(scan->fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_inode_csum_verify(scan->fs, scan->current_inode + 1,
+ (struct ext2_inode_large *)scan->temp_buffer))
+ retval = EXT2_ET_INODE_CSUM_INVALID;
+
#ifdef WORDS_BIGENDIAN
- memset(inode, 0, bufsize);
+ memset(iptr, 0, length);
ext2fs_swap_inode_full(scan->fs,
- (struct ext2_inode_large *) inode,
+ (struct ext2_inode_large *) iptr,
(struct ext2_inode_large *) scan->temp_buffer,
- 0, bufsize);
+ 0, length);
#else
- *inode = *((struct ext2_inode *) scan->temp_buffer);
+ memcpy(iptr, scan->temp_buffer, length);
#endif
if (scan->scan_flags & EXT2_SF_BAD_EXTRA_BYTES)
retval = EXT2_ET_BAD_BLOCK_IN_INODE_TABLE;
scan->scan_flags &= ~EXT2_SF_BAD_EXTRA_BYTES;
} else {
+ /* Verify the inode checksum. */
+ if (!(scan->fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_inode_csum_verify(scan->fs, scan->current_inode + 1,
+ (struct ext2_inode_large *)scan->ptr))
+ retval = EXT2_ET_INODE_CSUM_INVALID;
+
#ifdef WORDS_BIGENDIAN
- memset(inode, 0, bufsize);
+ memset(iptr, 0, length);
ext2fs_swap_inode_full(scan->fs,
- (struct ext2_inode_large *) inode,
+ (struct ext2_inode_large *) iptr,
(struct ext2_inode_large *) scan->ptr,
- 0, bufsize);
+ 0, length);
#else
- memcpy(inode, scan->ptr, bufsize);
+ memcpy(iptr, scan->ptr, length);
#endif
scan->ptr += scan->inode_size;
scan->bytes_left -= scan->inode_size;
scan->inodes_left--;
scan->current_inode++;
*ino = scan->current_inode;
+ if (iptr != (struct ext2_inode_large *)inode) {
+ memcpy(inode, iptr, bufsize);
+ ext2fs_free_mem(&iptr);
+ }
return retval;
}
unsigned long group, block, offset;
char *ptr;
errcode_t retval;
- int clen, i, inodes_per_block, length;
+ int clen, i, inodes_per_block;
io_channel io;
+ int length = EXT2_INODE_SIZE(fs->super);
+ struct ext2_inode_large *iptr;
+ int cache_slot;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
return EXT2_ET_BAD_INODE_NUM;
/* Create inode cache if not present */
if (!fs->icache) {
- retval = create_icache(fs);
+ retval = ext2fs_create_inode_cache(fs, 4);
if (retval)
return retval;
}
/* Check to see if it's in the inode cache */
- if (bufsize == sizeof(struct ext2_inode)) {
- /* only old good inode can be retrieved from the cache */
- for (i=0; i < fs->icache->cache_size; i++) {
- if (fs->icache->cache[i].ino == ino) {
- *inode = fs->icache->cache[i].inode;
- return 0;
- }
+ for (i = 0; i < fs->icache->cache_size; i++) {
+ if (fs->icache->cache[i].ino == ino) {
+ memcpy(inode, fs->icache->cache[i].inode,
+ (bufsize > length) ? length : bufsize);
+ return 0;
}
}
if (fs->flags & EXT2_FLAG_IMAGE_FILE) {
}
offset &= (EXT2_BLOCK_SIZE(fs->super) - 1);
- length = EXT2_INODE_SIZE(fs->super);
- if (bufsize < length)
- length = bufsize;
+ cache_slot = (fs->icache->cache_last + 1) % fs->icache->cache_size;
+ iptr = (struct ext2_inode_large *)fs->icache->cache[cache_slot].inode;
- ptr = (char *) inode;
+ ptr = (char *) iptr;
while (length) {
clen = length;
if ((offset + length) > fs->blocksize)
ptr += clen;
block_nr++;
}
+ length = EXT2_INODE_SIZE(fs->super);
+
+ /* Verify the inode checksum. */
+ if (!(fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_inode_csum_verify(fs, ino, iptr))
+ return EXT2_ET_INODE_CSUM_INVALID;
#ifdef WORDS_BIGENDIAN
- ext2fs_swap_inode_full(fs, (struct ext2_inode_large *) inode,
- (struct ext2_inode_large *) inode,
- 0, bufsize);
+ ext2fs_swap_inode_full(fs, (struct ext2_inode_large *) iptr,
+ (struct ext2_inode_large *) iptr,
+ 0, length);
#endif
- /* Update the inode cache */
- fs->icache->cache_last = (fs->icache->cache_last + 1) %
- fs->icache->cache_size;
- fs->icache->cache[fs->icache->cache_last].ino = ino;
- fs->icache->cache[fs->icache->cache_last].inode = *inode;
+ /* Update the inode cache bookkeeping */
+ fs->icache->cache_last = cache_slot;
+ fs->icache->cache[cache_slot].ino = ino;
+ memcpy(inode, iptr, (bufsize > length) ? length : bufsize);
return 0;
}
blk64_t block_nr;
unsigned long group, block, offset;
errcode_t retval = 0;
- struct ext2_inode_large temp_inode, *w_inode;
+ struct ext2_inode_large *w_inode;
char *ptr;
- int clen, i, length;
+ int clen, i;
+ int length = EXT2_INODE_SIZE(fs->super);
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
return retval;
}
+ if ((ino == 0) || (ino > fs->super->s_inodes_count))
+ return EXT2_ET_BAD_INODE_NUM;
+
+ /* Prepare our shadow buffer for read/modify/byteswap/write */
+ retval = ext2fs_get_mem(length, &w_inode);
+ if (retval)
+ return retval;
+
+ if (bufsize < length) {
+ int old_flags = fs->flags;
+ fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ retval = ext2fs_read_inode_full(fs, ino,
+ (struct ext2_inode *)w_inode,
+ length);
+ fs->flags = old_flags;
+ if (retval)
+ goto errout;
+ }
+
/* Check to see if the inode cache needs to be updated */
if (fs->icache) {
for (i=0; i < fs->icache->cache_size; i++) {
if (fs->icache->cache[i].ino == ino) {
- fs->icache->cache[i].inode = *inode;
+ memcpy(fs->icache->cache[i].inode, inode,
+ (bufsize > length) ? length : bufsize);
break;
}
}
} else {
- retval = create_icache(fs);
+ retval = ext2fs_create_inode_cache(fs, 4);
if (retval)
- return retval;
+ goto errout;
}
+ memcpy(w_inode, inode, (bufsize > length) ? length : bufsize);
- if (!(fs->flags & EXT2_FLAG_RW))
- return EXT2_ET_RO_FILSYS;
-
- if ((ino == 0) || (ino > fs->super->s_inodes_count))
- return EXT2_ET_BAD_INODE_NUM;
-
- length = bufsize;
- if (length < EXT2_INODE_SIZE(fs->super))
- length = EXT2_INODE_SIZE(fs->super);
-
- if (length > (int) sizeof(struct ext2_inode_large)) {
- w_inode = malloc(length);
- if (!w_inode) {
- retval = ENOMEM;
- goto errout;
- }
- } else
- w_inode = &temp_inode;
- memset(w_inode, 0, length);
+ if (!(fs->flags & EXT2_FLAG_RW)) {
+ retval = EXT2_ET_RO_FILSYS;
+ goto errout;
+ }
#ifdef WORDS_BIGENDIAN
- ext2fs_swap_inode_full(fs, w_inode,
- (struct ext2_inode_large *) inode,
- 1, bufsize);
-#else
- memcpy(w_inode, inode, bufsize);
+ ext2fs_swap_inode_full(fs, w_inode, w_inode, 1, length);
#endif
+ retval = ext2fs_inode_csum_set(fs, ino, w_inode);
+ if (retval)
+ goto errout;
+
group = (ino - 1) / EXT2_INODES_PER_GROUP(fs->super);
offset = ((ino - 1) % EXT2_INODES_PER_GROUP(fs->super)) *
EXT2_INODE_SIZE(fs->super);
offset &= (EXT2_BLOCK_SIZE(fs->super) - 1);
- length = EXT2_INODE_SIZE(fs->super);
- if (length > bufsize)
- length = bufsize;
-
ptr = (char *) w_inode;
while (length) {
fs->flags |= EXT2_FLAG_CHANGED;
errout:
- if (w_inode && w_inode != &temp_inode)
- free(w_inode);
+ ext2fs_free_mem(&w_inode);
return retval;
}
#define cpu_to_be32(n) htonl(n)
#define be32_to_cpu(n) ntohl(n)
+#define cpu_to_be16(n) htons(n)
+#define be16_to_cpu(n) ntohs(n)
typedef unsigned int tid_t;
typedef struct journal_s journal_t;
#define JBD2_CRC32_CHKSUM 1
#define JBD2_MD5_CHKSUM 2
#define JBD2_SHA1_CHKSUM 3
+#define JBD2_CRC32C_CHKSUM 4
#define JBD2_CRC32_CHKSUM_SIZE 4
#define JBD2_CHECKSUM_BYTES (32 / sizeof(__u32))
/*
* Commit block header for storing transactional checksums:
+ *
+ * NOTE: If FEATURE_COMPAT_CHECKSUM (checksum v1) is set, the h_chksum*
+ * fields are used to store a checksum of the descriptor and data blocks.
+ *
+ * If FEATURE_INCOMPAT_CSUM_V2 (checksum v2) is set, then the h_chksum
+ * field is used to store crc32c(uuid+commit_block). Each journal metadata
+ * block gets its own checksum, and data block checksums are stored in
+ * journal_block_tag (in the descriptor). The other h_chksum* fields are
+ * not used.
+ *
+ * Checksum v1 and v2 are mutually exclusive features.
*/
struct commit_header {
__u32 h_magic;
typedef struct journal_block_tag_s
{
__u32 t_blocknr; /* The on-disk block number */
- __u32 t_flags; /* See below */
+ __u16 t_checksum; /* truncated crc32c(uuid+seq+block) */
+ __u16 t_flags; /* See below */
__u32 t_blocknr_high; /* most-significant high 32bits. */
} journal_block_tag_t;
#define JBD_TAG_SIZE64 (sizeof(journal_block_tag_t))
#define JBD_TAG_SIZE32 (8)
+/* Tail of descriptor block, for checksumming */
+struct journal_block_tail {
+ __u32 t_checksum;
+};
+
/*
* The revoke descriptor: used on disk to describe a series of blocks to
* be revoked from the log
int r_count; /* Count of bytes used in the block */
} journal_revoke_header_t;
+/* Tail of revoke block, for checksumming */
+struct journal_revoke_tail {
+ __u32 r_checksum;
+};
/* Definitions for the journal tag flags word: */
#define JFS_FLAG_ESCAPE 1 /* on-disk block is escaped */
__u32 s_max_trans_data; /* Limit of data blocks per trans. */
/* 0x0050 */
- __u32 s_padding[44];
+ __u8 s_checksum_type; /* checksum type */
+ __u8 s_padding2[3];
+ __u32 s_padding[42];
+ __u32 s_checksum; /* crc32c(superblock) */
/* 0x0100 */
__u8 s_users[16*48]; /* ids of all fs'es sharing the log */
#define JFS_FEATURE_COMPAT_CHECKSUM 0x00000001
-#define JFS_FEATURE_INCOMPAT_REVOKE 0x00000001
-
#define JFS_FEATURE_INCOMPAT_REVOKE 0x00000001
#define JFS_FEATURE_INCOMPAT_64BIT 0x00000002
#define JFS_FEATURE_INCOMPAT_ASYNC_COMMIT 0x00000004
+#define JFS_FEATURE_INCOMPAT_CSUM_V2 0x00000008
/* Features known to this kernel version: */
#define JFS_KNOWN_COMPAT_FEATURES 0
#define JFS_KNOWN_ROCOMPAT_FEATURES 0
#define JFS_KNOWN_INCOMPAT_FEATURES (JFS_FEATURE_INCOMPAT_REVOKE|\
JFS_FEATURE_INCOMPAT_ASYNC_COMMIT|\
- JFS_FEATURE_INCOMPAT_64BIT)
+ JFS_FEATURE_INCOMPAT_64BIT|\
+ JFS_FEATURE_INCOMPAT_CSUM_V2)
+
+#if (defined(E2FSCK_INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
+#ifdef E2FSCK_INCLUDE_INLINE_FUNCS
+#if (__STDC_VERSION__ >= 199901L)
+#define _INLINE_ extern inline
+#else
+#define _INLINE_ inline
+#endif
+#else /* !E2FSCK_INCLUDE_INLINE FUNCS */
+#if (__STDC_VERSION__ >= 199901L)
+#define _INLINE_ inline
+#else /* not C99 */
+#ifdef __GNUC__
+#define _INLINE_ extern __inline__
+#else /* For Watcom C */
+#define _INLINE_ extern inline
+#endif /* __GNUC__ */
+#endif /* __STDC_VERSION__ >= 199901L */
+#endif /* INCLUDE_INLINE_FUNCS */
+
+/*
+ * helper functions to deal with 32 or 64bit block numbers.
+ */
+_INLINE_ size_t journal_tag_bytes(journal_t *journal)
+{
+ journal_block_tag_t tag;
+ size_t x = 0;
+
+ if (JFS_HAS_INCOMPAT_FEATURE(journal, JFS_FEATURE_INCOMPAT_CSUM_V2))
+ x += sizeof(tag.t_checksum);
+
+ if (JFS_HAS_INCOMPAT_FEATURE(journal, JFS_FEATURE_INCOMPAT_64BIT))
+ return x + JBD_TAG_SIZE64;
+ else
+ return x + JBD_TAG_SIZE32;
+}
+#undef _INLINE_
+#endif
#ifdef __KERNEL__
struct ext2_dir_entry *next;
unsigned int rec_len, min_rec_len, curr_rec_len;
int ret = 0;
+ int csum_size = 0;
+ struct ext2_dir_entry_tail *t;
if (ls->done)
return DIRENT_ABORT;
if (ls->err)
return DIRENT_ABORT;
+ if (EXT2_HAS_RO_COMPAT_FEATURE(ls->fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dir_entry_tail);
/*
* See if the following directory entry (if any) is unused;
* if so, absorb it into this one.
*/
next = (struct ext2_dir_entry *) (buf + offset + curr_rec_len);
- if ((offset + (int) curr_rec_len < blocksize - 8) &&
+ if ((offset + (int) curr_rec_len < blocksize - (8 + csum_size)) &&
(next->inode == 0) &&
(offset + (int) curr_rec_len + (int) next->rec_len <= blocksize)) {
curr_rec_len += next->rec_len;
ret = DIRENT_CHANGED;
}
+ /*
+ * Since ext2fs_link blows away htree data, we need to be
+ * careful -- if metadata_csum is enabled and we're passed in
+ * a dirent that contains htree data, we need to create the
+ * fake entry at the end of the block that hides the checksum.
+ */
+
+ /* De-convert a dx_node block */
+ if (csum_size &&
+ curr_rec_len == ls->fs->blocksize &&
+ !dirent->inode) {
+ curr_rec_len -= csum_size;
+ ls->err = ext2fs_set_rec_len(ls->fs, curr_rec_len, dirent);
+ if (ls->err)
+ return DIRENT_ABORT;
+ t = EXT2_DIRENT_TAIL(buf, ls->fs->blocksize);
+ ext2fs_initialize_dirent_tail(ls->fs, t);
+ ret = DIRENT_CHANGED;
+ }
+
+ /* De-convert a dx_root block */
+ if (csum_size &&
+ curr_rec_len == ls->fs->blocksize - EXT2_DIR_REC_LEN(1) &&
+ offset == EXT2_DIR_REC_LEN(1) &&
+ dirent->name[0] == '.' && dirent->name[1] == '.') {
+ curr_rec_len -= csum_size;
+ ls->err = ext2fs_set_rec_len(ls->fs, curr_rec_len, dirent);
+ if (ls->err)
+ return DIRENT_ABORT;
+ t = EXT2_DIRENT_TAIL(buf, ls->fs->blocksize);
+ ext2fs_initialize_dirent_tail(ls->fs, t);
+ ret = DIRENT_CHANGED;
+ }
+
/*
* If the directory entry is used, see if we can split the
* directory entry to make room for the new name. If so,
* truncate it and return.
*/
if (dirent->inode) {
- min_rec_len = EXT2_DIR_REC_LEN(dirent->name_len & 0xFF);
+ min_rec_len = EXT2_DIR_REC_LEN(ext2fs_dirent_name_len(dirent));
if (curr_rec_len < (min_rec_len + rec_len))
return ret;
rec_len = curr_rec_len - min_rec_len;
next = (struct ext2_dir_entry *) (buf + offset +
dirent->rec_len);
next->inode = 0;
- next->name_len = 0;
+ ext2fs_dirent_set_name_len(next, 0);
+ ext2fs_dirent_set_file_type(next, 0);
ls->err = ext2fs_set_rec_len(ls->fs, rec_len, next);
if (ls->err)
return DIRENT_ABORT;
if (curr_rec_len < rec_len)
return ret;
dirent->inode = ls->inode;
- dirent->name_len = ls->namelen;
+ ext2fs_dirent_set_name_len(dirent, ls->namelen);
strncpy(dirent->name, ls->name, ls->namelen);
if (ls->sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_FILETYPE)
- dirent->name_len |= (ls->flags & 0x7) << 8;
+ ext2fs_dirent_set_file_type(dirent, ls->flags & 0x7);
ls->done++;
return DIRENT_ABORT|DIRENT_CHANGED;
if ((retval = ext2fs_read_inode(fs, dir, &inode)) != 0)
return retval;
+ /*
+ * If this function changes to preserve the htree, remove the
+ * two hunks in link_proc that shove checksum tails into the
+ * former dx_root/dx_node blocks.
+ */
if (inode.i_flags & EXT2_INDEX_FL) {
inode.i_flags &= ~EXT2_INDEX_FL;
if ((retval = ext2fs_write_inode(fs, dir, &inode)) != 0)
{
struct lookup_struct *ls = (struct lookup_struct *) priv_data;
- if (ls->len != (dirent->name_len & 0xFF))
+ if (ls->len != ext2fs_dirent_name_len(dirent))
return 0;
- if (strncmp(ls->name, dirent->name, (dirent->name_len & 0xFF)))
+ if (strncmp(ls->name, dirent->name, ext2fs_dirent_name_len(dirent)))
return 0;
*ls->inode = dirent->inode;
ls->found++;
#include "ext2_fs.h"
#include "ext2fs.h"
+#include "ext2fsP.h"
#ifndef EXT2_FT_DIR
#define EXT2_FT_DIR 2
ext2_ino_t scratch_ino;
blk64_t blk;
char *block = 0;
+ int inline_data = 0;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
+ /*
+ * Create a new dir with inline data iff this feature is enabled
+ * and ino >= EXT2_FIRST_INO.
+ */
+ if ((!ino || ino >= EXT2_FIRST_INO(fs->super)) &&
+ EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA))
+ inline_data = 1;
+
/*
* Allocate an inode, if necessary
*/
/*
* Allocate a data block for the directory
*/
- retval = ext2fs_new_block2(fs, 0, 0, &blk);
- if (retval)
- goto cleanup;
+ if (!inline_data) {
+ retval = ext2fs_new_block2(fs, 0, 0, &blk);
+ if (retval)
+ goto cleanup;
+ }
/*
* Create a scratch template for the directory
*/
- retval = ext2fs_new_dir_block(fs, ino, parent, &block);
+ memset(&inode, 0, sizeof(struct ext2_inode));
+ if (inline_data)
+ retval = ext2fs_new_dir_inline_data(fs, ino, parent,
+ inode.i_block);
+ else
+ retval = ext2fs_new_dir_block(fs, ino, parent, &block);
if (retval)
goto cleanup;
/*
* Create the inode structure....
*/
- memset(&inode, 0, sizeof(struct ext2_inode));
inode.i_mode = LINUX_S_IFDIR | (0777 & ~fs->umask);
inode.i_uid = inode.i_gid = 0;
- ext2fs_iblk_set(fs, &inode, 1);
- if (fs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)
- inode.i_flags |= EXT4_EXTENTS_FL;
- else
- inode.i_block[0] = blk;
+ if (inline_data) {
+ inode.i_flags |= EXT4_INLINE_DATA_FL;
+ inode.i_size = EXT4_MIN_INLINE_DATA_SIZE;
+ } else {
+ if (fs->super->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_EXTENTS)
+ inode.i_flags |= EXT4_EXTENTS_FL;
+ else
+ inode.i_block[0] = blk;
+ inode.i_size = fs->blocksize;
+ ext2fs_iblk_set(fs, &inode, 1);
+ }
inode.i_links_count = 2;
- inode.i_size = fs->blocksize;
/*
- * Write out the inode and inode data block
+ * Write out the inode and inode data block. The inode generation
+ * number is assigned by write_new_inode, which means that the call
+ * to write_dir_block must come after that.
*/
- retval = ext2fs_write_dir_block(fs, blk, block);
- if (retval)
- goto cleanup;
retval = ext2fs_write_new_inode(fs, ino, &inode);
if (retval)
goto cleanup;
-
- if (fs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS) {
- retval = ext2fs_extent_open2(fs, ino, &inode, &handle);
- if (retval)
- goto cleanup;
- retval = ext2fs_extent_set_bmap(handle, 0, blk, 0);
- ext2fs_extent_free(handle);
+ if (inline_data) {
+ /* init "system.data" for new dir */
+ retval = ext2fs_inline_data_init(fs, ino);
+ } else {
+ retval = ext2fs_write_dir_block4(fs, blk, block, 0, ino);
if (retval)
goto cleanup;
+
+ if (fs->super->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_EXTENTS) {
+ retval = ext2fs_extent_open2(fs, ino, &inode, &handle);
+ if (retval)
+ goto cleanup;
+ retval = ext2fs_extent_set_bmap(handle, 0, blk, 0);
+ ext2fs_extent_free(handle);
+ if (retval)
+ goto cleanup;
+ }
}
/*
* Update parent inode's counts
*/
if (parent != ino) {
+ /* reload parent inode due to inline data */
+ retval = ext2fs_read_inode(fs, parent, &parent_inode);
+ if (retval)
+ goto cleanup;
parent_inode.i_links_count++;
retval = ext2fs_write_inode(fs, parent, &parent_inode);
if (retval)
/*
* Update accounting....
*/
- ext2fs_block_alloc_stats2(fs, blk, +1);
+ if (!inline_data)
+ ext2fs_block_alloc_stats2(fs, blk, +1);
ext2fs_inode_alloc_stats2(fs, ino, +1, 1);
cleanup:
errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf)
{
+#ifdef CONFIG_MMP
struct mmp_struct *mmp_cmp;
errcode_t retval = 0;
}
mmp_cmp = fs->mmp_cmp;
+
+ if (!(fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_mmp_csum_verify(fs, mmp_cmp))
+ retval = EXT2_ET_MMP_CSUM_INVALID;
+
#ifdef WORDS_BIGENDIAN
ext2fs_swap_mmp(mmp_cmp);
#endif
out:
return retval;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf)
{
+#ifdef CONFIG_MMP
struct mmp_struct *mmp_s = buf;
struct timeval tv;
errcode_t retval = 0;
ext2fs_swap_mmp(mmp_s);
#endif
+ retval = ext2fs_mmp_csum_set(fs, mmp_s);
+ if (retval)
+ return retval;
+
/* I was tempted to make this use O_DIRECT and the mmp_fd, but
* this caused no end of grief, while leaving it as-is works. */
retval = io_channel_write_blk64(fs->io, mmp_blk, -(int)sizeof(struct mmp_struct), buf);
/* Make sure the block gets to disk quickly */
io_channel_flush(fs->io);
return retval;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
#ifdef HAVE_SRANDOM
unsigned ext2fs_mmp_new_seq(void)
{
+#ifdef CONFIG_MMP
unsigned new_seq;
struct timeval tv;
} while (new_seq > EXT4_MMP_SEQ_MAX);
return new_seq;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
static errcode_t ext2fs_mmp_reset(ext2_filsys fs)
return retval;
}
+errcode_t ext2fs_mmp_update(ext2_filsys fs)
+{
+ return ext2fs_mmp_update2(fs, 0);
+}
+
errcode_t ext2fs_mmp_clear(ext2_filsys fs)
{
+#ifdef CONFIG_MMP
errcode_t retval = 0;
if (!(fs->flags & EXT2_FLAG_RW))
retval = ext2fs_mmp_reset(fs);
return retval;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
errcode_t ext2fs_mmp_init(ext2_filsys fs)
{
+#ifdef CONFIG_MMP
struct ext2_super_block *sb = fs->super;
blk64_t mmp_block;
errcode_t retval;
out:
return retval;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
/*
*/
errcode_t ext2fs_mmp_start(ext2_filsys fs)
{
+#ifdef CONFIG_MMP
struct mmp_struct *mmp_s;
unsigned seq;
unsigned int mmp_check_interval;
mmp_error:
return retval;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
/*
*/
errcode_t ext2fs_mmp_stop(ext2_filsys fs)
{
+#ifdef CONFIG_MMP
struct mmp_struct *mmp, *mmp_cmp;
errcode_t retval = 0;
}
return retval;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
#define EXT2_MIN_MMP_UPDATE_INTERVAL 60
/*
* Update the on-disk mmp buffer, after checking that it hasn't been changed.
*/
-errcode_t ext2fs_mmp_update(ext2_filsys fs)
+errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately)
{
+#ifdef CONFIG_MMP
struct mmp_struct *mmp, *mmp_cmp;
struct timeval tv;
errcode_t retval = 0;
return 0;
gettimeofday(&tv, 0);
- if (tv.tv_sec - fs->mmp_last_written < EXT2_MIN_MMP_UPDATE_INTERVAL)
+ if (!immediately &&
+ tv.tv_sec - fs->mmp_last_written < EXT2_MIN_MMP_UPDATE_INTERVAL)
return 0;
retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, NULL);
mmp_error:
return retval;
+#else
+ return EXT2_ET_OP_NOT_SUPPORTED;
+#endif
}
char *buf;
int rec_len;
int filetype = 0;
+ struct ext2_dir_entry_tail *t;
+ int csum_size = 0;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
memset(buf, 0, fs->blocksize);
dir = (struct ext2_dir_entry *) buf;
- retval = ext2fs_set_rec_len(fs, fs->blocksize, dir);
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ csum_size = sizeof(struct ext2_dir_entry_tail);
+
+ retval = ext2fs_set_rec_len(fs, fs->blocksize - csum_size, dir);
if (retval) {
ext2fs_free_mem(&buf);
return retval;
if (dir_ino) {
if (fs->super->s_feature_incompat &
EXT2_FEATURE_INCOMPAT_FILETYPE)
- filetype = EXT2_FT_DIR << 8;
+ filetype = EXT2_FT_DIR;
/*
* Set up entry for '.'
*/
dir->inode = dir_ino;
- dir->name_len = 1 | filetype;
+ ext2fs_dirent_set_name_len(dir, 1);
+ ext2fs_dirent_set_file_type(dir, filetype);
dir->name[0] = '.';
- rec_len = fs->blocksize - EXT2_DIR_REC_LEN(1);
+ rec_len = (fs->blocksize - csum_size) - EXT2_DIR_REC_LEN(1);
dir->rec_len = EXT2_DIR_REC_LEN(1);
/*
return retval;
}
dir->inode = parent_ino;
- dir->name_len = 2 | filetype;
+ ext2fs_dirent_set_name_len(dir, 2);
+ ext2fs_dirent_set_file_type(dir, filetype);
dir->name[0] = '.';
dir->name[1] = '.';
}
+
+ if (csum_size) {
+ t = EXT2_DIRENT_TAIL(buf, fs->blocksize);
+ ext2fs_initialize_dirent_tail(fs, t);
+ }
*block = buf;
return 0;
}
+
+/*
+ * Create new directory on inline data
+ */
+errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
+ ext2_ino_t parent_ino, __u32 *iblock)
+{
+ struct ext2_dir_entry *dir = NULL;
+ errcode_t retval;
+ char *buf;
+ int rec_len;
+ int filetype = 0;
+
+ EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
+
+ iblock[0] = ext2fs_cpu_to_le32(parent_ino);
+
+ dir = (struct ext2_dir_entry *)((char *)iblock +
+ EXT4_INLINE_DATA_DOTDOT_SIZE);
+ dir->inode = 0;
+ rec_len = EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE;
+ retval = ext2fs_set_rec_len(fs, rec_len, dir);
+
+ return retval;
+}
if (fs->orig_super)
memcpy(fs->orig_super, fs->super, SUPERBLOCK_SIZE);
+ if (!(fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
+ retval = 0;
+ if (!ext2fs_verify_csum_type(fs, fs->super))
+ retval = EXT2_ET_UNKNOWN_CSUM;
+ if (!ext2fs_superblock_csum_verify(fs, fs->super))
+ retval = EXT2_ET_SB_CSUM_INVALID;
+ if (retval)
+ goto cleanup;
+ }
+
#ifdef WORDS_BIGENDIAN
fs->flags |= EXT2_FLAG_SWAP_BYTES;
ext2fs_swap_super(fs->super);
retval = EXT2_ET_CORRUPT_SUPERBLOCK;
goto cleanup;
}
+
+ /* Enforce the block group descriptor size */
+ if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) {
+ if (fs->super->s_desc_size < EXT2_MIN_DESC_SIZE_64BIT) {
+ retval = EXT2_ET_BAD_DESC_SIZE;
+ goto cleanup;
+ }
+ } else {
+ if (fs->super->s_desc_size &&
+ fs->super->s_desc_size != EXT2_MIN_DESC_SIZE) {
+ retval = EXT2_ET_BAD_DESC_SIZE;
+ goto cleanup;
+ }
+ }
+
fs->cluster_ratio_bits = fs->super->s_log_cluster_size -
fs->super->s_log_block_size;
if (EXT2_BLOCKS_PER_GROUP(fs->super) !=
retval = EXT2_ET_CORRUPT_SUPERBLOCK;
goto cleanup;
}
+ /* Precompute the FS UUID to seed other checksums */
+ ext2fs_init_csum_seed(fs);
/*
* Read group descriptors
* If recovery is from backup superblock, Clear _UNININT flags &
* reset bg_itable_unused to zero
*/
- if (superblock > 1 && EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ if (superblock > 1 && ext2fs_has_group_desc_csum(fs)) {
dgrp_t group;
for (group = 0; group < fs->group_desc_count; group++) {
static char spaces[80], backspaces[80];
static time_t last_update;
+struct ext2fs_progress_ops ext2fs_numeric_progress_ops = {
+ .init = ext2fs_numeric_progress_init,
+ .update = ext2fs_numeric_progress_update,
+ .close = ext2fs_numeric_progress_close,
+};
+
static int int_log10(unsigned int arg)
{
int l;
#include "ext2_fs.h"
#include "ext2fs.h"
+#include "ext2fsP.h"
#undef PUNCH_DEBUG
EXT2_EXTENT_INSERT_AFTER, &newex);
if (retval)
goto errout;
- /* Now pointing at inserted extent; so go back */
- retval = ext2fs_extent_get(handle,
- EXT2_EXTENT_PREV_LEAF,
- &newex);
+ retval = ext2fs_extent_fix_parents(handle);
+ if (retval)
+ goto errout;
+ /*
+ * Now pointing at inserted extent; so go back.
+ *
+ * We cannot use EXT2_EXTENT_PREV to go back; note the
+ * subtlety in the comment for fix_parents().
+ */
+ retval = ext2fs_extent_goto(handle, extent.e_lblk);
if (retval)
goto errout;
}
retval = 0;
/* Jump forward to the next extent. */
- ext2fs_extent_goto(handle, next_lblk);
+ (void) ext2fs_extent_goto(handle, next_lblk);
op = EXT2_EXTENT_CURRENT;
}
if (retval)
return retval;
}
+static errcode_t ext2fs_punch_inline_data(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ blk64_t start, blk64_t end)
+{
+ errcode_t retval;
+
+ /*
+ * In libext2fs ext2fs_punch is based on block unit. So that
+ * means that if start > 0 we don't need to do nothing. Due
+ * to this we will remove all inline data in ext2fs_punch()
+ * now.
+ */
+ if (start > 0)
+ return 0;
+
+ memset((char *)inode->i_block, 0, EXT4_MIN_INLINE_DATA_SIZE);
+ inode->i_size = 0;
+ retval = ext2fs_write_inode(fs, ino, inode);
+ if (retval)
+ return retval;
+
+ return ext2fs_inline_data_ea_remove(fs, ino);
+}
+
/*
* Deallocate all logical blocks starting at start to end, inclusive.
* If end is ~0, then this is effectively truncate.
return retval;
inode = &inode_buf;
}
- if (inode->i_flags & EXT4_EXTENTS_FL)
+ if (inode->i_flags & EXT4_INLINE_DATA_FL)
+ return ext2fs_punch_inline_data(fs, ino, inode, start, end);
+ else if (inode->i_flags & EXT4_EXTENTS_FL)
retval = ext2fs_punch_extent(fs, ino, inode, start, end);
else {
blk_t count;
unsigned int nbits;
errcode_t retval;
char *block_buf = NULL, *inode_buf = NULL;
- int csum_flag = 0;
+ int csum_flag;
blk64_t blk;
blk64_t blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
ext2_ino_t ino_itr = 1;
if (!(fs->flags & EXT2_FLAG_RW))
return EXT2_ET_RO_FILSYS;
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
- csum_flag = 1;
+ csum_flag = ext2fs_has_group_desc_csum(fs);
inode_nbytes = block_nbytes = 0;
if (do_block) {
for (j = nbits; j < fs->blocksize * 8; j++)
ext2fs_set_bit(j, block_buf);
}
+
+ retval = ext2fs_block_bitmap_csum_set(fs, i, block_buf,
+ block_nbytes);
+ if (retval)
+ return retval;
+ ext2fs_group_desc_csum_set(fs, i);
+
blk = ext2fs_block_bitmap_loc(fs, i);
if (blk) {
retval = io_channel_write_blk64(fs->io, blk, 1,
if (retval)
goto errout;
+ retval = ext2fs_inode_bitmap_csum_set(fs, i, inode_buf,
+ inode_nbytes);
+ if (retval)
+ goto errout;
+ ext2fs_group_desc_csum_set(fs, i);
+
blk = ext2fs_inode_bitmap_loc(fs, i);
if (blk) {
retval = io_channel_write_blk64(fs->io, blk, 1,
errcode_t retval;
int block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
int inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
- int csum_flag = 0;
+ int csum_flag;
unsigned int cnt;
blk64_t blk;
blk64_t blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
fs->write_bitmaps = ext2fs_write_bitmaps;
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
- csum_flag = 1;
+ csum_flag = ext2fs_has_group_desc_csum(fs);
retval = ext2fs_get_mem(strlen(fs->device_name) + 80, &buf);
if (retval)
retval = EXT2_ET_BLOCK_BITMAP_READ;
goto cleanup;
}
+ /* verify block bitmap checksum */
+ if (!(fs->flags &
+ EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_block_bitmap_csum_verify(fs, i,
+ block_bitmap, block_nbytes)) {
+ retval =
+ EXT2_ET_BLOCK_BITMAP_CSUM_INVALID;
+ goto cleanup;
+ }
} else
memset(block_bitmap, 0, block_nbytes);
cnt = block_nbytes << 3;
retval = EXT2_ET_INODE_BITMAP_READ;
goto cleanup;
}
+
+ /* verify inode bitmap checksum */
+ if (!(fs->flags &
+ EXT2_FLAG_IGNORE_CSUM_ERRORS) &&
+ !ext2fs_inode_bitmap_csum_verify(fs, i,
+ inode_bitmap, inode_nbytes)) {
+ retval =
+ EXT2_ET_INODE_BITMAP_CSUM_INVALID;
+ goto cleanup;
+ }
} else
memset(inode_bitmap, 0, inode_nbytes);
cnt = inode_nbytes << 3;
to_header->h_blocks = ext2fs_swab32(from_header->h_blocks);
to_header->h_refcount = ext2fs_swab32(from_header->h_refcount);
to_header->h_hash = ext2fs_swab32(from_header->h_hash);
- for (n = 0; n < 4; n++)
+ to_header->h_checksum = ext2fs_swab32(from_header->h_checksum);
+ for (n = 0; n < 3; n++)
to_header->h_reserved[n] =
ext2fs_swab32(from_header->h_reserved[n]);
}
{
unsigned i, has_data_blocks, extra_isize, attr_magic;
int has_extents = 0;
+ int has_inline_data = 0;
int islnk = 0;
__u32 *eaf, *eat;
(struct ext2_inode *) t);
if (hostorder && (f->i_flags & EXT4_EXTENTS_FL))
has_extents = 1;
+ if (hostorder && (f->i_flags & EXT4_INLINE_DATA_FL))
+ has_inline_data = 1;
t->i_flags = ext2fs_swab32(f->i_flags);
if (!hostorder && (t->i_flags & EXT4_EXTENTS_FL))
has_extents = 1;
+ if (!hostorder && (f->i_flags & EXT4_INLINE_DATA_FL))
+ has_inline_data = 1;
t->i_dir_acl = ext2fs_swab32(f->i_dir_acl);
- /* extent data are swapped on access, not here */
- if (!has_extents && (!islnk || has_data_blocks)) {
+ /*
+ * Extent data and inline data are swapped on access, not here
+ */
+ if (!has_extents && !has_inline_data && (!islnk || has_data_blocks)) {
for (i = 0; i < EXT2_N_BLOCKS; i++)
t->i_block[i] = ext2fs_swab32(f->i_block[i]);
} else if (t != f) {
mmp->mmp_seq = ext2fs_swab32(mmp->mmp_seq);
mmp->mmp_time = ext2fs_swab64(mmp->mmp_time);
mmp->mmp_check_interval = ext2fs_swab16(mmp->mmp_check_interval);
+ mmp->mmp_checksum = ext2fs_swab32(mmp->mmp_checksum);
+}
+
+errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags)
+{
+ return ext2fs_dirent_swab_in2(fs, buf, fs->blocksize, flags);
+}
+
+errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf,
+ size_t size, int flags)
+{
+ errcode_t retval;
+ char *p, *end;
+ struct ext2_dir_entry *dirent;
+ unsigned int name_len, rec_len;
+
+ p = (char *) buf;
+ end = (char *) buf + size;
+ while (p < end-8) {
+ dirent = (struct ext2_dir_entry *) p;
+ dirent->inode = ext2fs_swab32(dirent->inode);
+ dirent->rec_len = ext2fs_swab16(dirent->rec_len);
+ dirent->name_len = ext2fs_swab16(dirent->name_len);
+ name_len = dirent->name_len;
+ if (flags & EXT2_DIRBLOCK_V2_STRUCT)
+ dirent->name_len = ext2fs_swab16(dirent->name_len);
+ retval = ext2fs_get_rec_len(fs, dirent, &rec_len);
+ if (retval)
+ return retval;
+ if ((rec_len < 8) || (rec_len % 4)) {
+ rec_len = 8;
+ retval = EXT2_ET_DIR_CORRUPTED;
+ } else if (((name_len & 0xFF) + 8) > rec_len)
+ retval = EXT2_ET_DIR_CORRUPTED;
+ p += rec_len;
+ }
+
+ return 0;
+}
+
+errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags)
+{
+ return ext2fs_dirent_swab_out2(fs, buf, fs->blocksize, flags);
+}
+
+errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf,
+ size_t size, int flags)
+{
+ errcode_t retval;
+ char *p, *end;
+ unsigned int rec_len;
+ struct ext2_dir_entry *dirent;
+
+ p = buf;
+ end = buf + size;
+ while (p < end) {
+ dirent = (struct ext2_dir_entry *) p;
+ retval = ext2fs_get_rec_len(fs, dirent, &rec_len);
+ if (retval)
+ return retval;
+ if ((rec_len < 8) ||
+ (rec_len % 4)) {
+ ext2fs_free_mem(&buf);
+ return EXT2_ET_DIR_CORRUPTED;
+ }
+ p += rec_len;
+ dirent->inode = ext2fs_swab32(dirent->inode);
+ dirent->rec_len = ext2fs_swab16(dirent->rec_len);
+ dirent->name_len = ext2fs_swab16(dirent->name_len);
+
+ if (flags & EXT2_DIRBLOCK_V2_STRUCT)
+ dirent->name_len = ext2fs_swab16(dirent->name_len);
+ }
+
+ return 0;
}
#endif
check_field(s_mmp_block, 8);
check_field(s_raid_stripe_width, 4);
check_field(s_log_groups_per_flex, 1);
- check_field(s_reserved_char_pad, 1);
+ check_field(s_checksum_type, 1);
check_field(s_reserved_pad, 2);
check_field(s_kbytes_written, 8);
check_field(s_snapshot_inum, 4);
ls->prev = dirent;
if (ls->name) {
- if ((dirent->name_len & 0xFF) != ls->namelen)
+ if (ext2fs_dirent_name_len(dirent) != ls->namelen)
return 0;
- if (strncmp(ls->name, dirent->name, dirent->name_len & 0xFF))
+ if (strncmp(ls->name, dirent->name, ext2fs_dirent_name_len(dirent)))
return 0;
}
if (ls->inode) {
return 0; /* Probably a fast symlink */
}
}
+
+ /*
+ * If this inode has inline data, it shouldn't have valid block
+ * entries.
+ */
+ if (inode->i_flags & EXT4_INLINE_DATA_FL)
+ return 0;
return 1;
}
$(E) " CC $<"
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
@CHECKER_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -checker -g -o checker/$*.o -c $<
#ELF_CMT# $(Q) $(CC) $(ALL_CFLAGS) -fPIC -o elfshared/$*.o -c $<
$(E) " CC $<"
$(Q) $(CC) $(ALL_CFLAGS) -c $<
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
@CHECKER_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -checker -g -o checker/$*.o -c $<
@ELF_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -DSHARED_ELF_LIB -fPIC -o elfshared/$*.o -c $<
$(E) " CC $<"
$(Q) $(CC) $(ALL_CFLAGS) -c $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
@CHECKER_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -checker -g -o checker/$*.o -c $<
@ELF_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -fPIC -o elfshared/$*.o -c $<
TUNE2FS_OBJS= tune2fs.o util.o
MKLPF_OBJS= mklost+found.o
MKE2FS_OBJS= mke2fs.o util.o profile.o prof_err.o default_profile.o \
- mk_hugefiles.o
+ mk_hugefiles.o create_inode.o
CHATTR_OBJS= chattr.o
LSATTR_OBJS= lsattr.o
UUIDGEN_OBJS= uuidgen.o
PROFILED_TUNE2FS_OBJS= profiled/tune2fs.o profiled/util.o
PROFILED_MKLPF_OBJS= profiled/mklost+found.o
PROFILED_MKE2FS_OBJS= profiled/mke2fs.o profiled/util.o profiled/profile.o \
- profiled/prof_err.o profiled/default_profile.o
+ profiled/prof_err.o profiled/default_profile.o \
+ profiled/create_inode.o
PROFILED_CHATTR_OBJS= profiled/chattr.o
PROFILED_LSATTR_OBJS= profiled/lsattr.o
PROFILED_UUIDGEN_OBJS= profiled/uuidgen.o
$(srcdir)/uuidgen.c $(srcdir)/blkid.c $(srcdir)/logsave.c \
$(srcdir)/filefrag.c $(srcdir)/base_device.c \
$(srcdir)/ismounted.c $(srcdir)/../e2fsck/profile.c \
- $(srcdir)/e2undo.c $(srcdir)/e2freefrag.c
+ $(srcdir)/e2undo.c $(srcdir)/e2freefrag.c $(srcdir)/create_inode.c
LIBS= $(LIBEXT2FS) $(LIBCOM_ERR)
DEPLIBS= $(LIBEXT2FS) $(DEPLIBCOM_ERR)
$(E) " CC $<"
$(Q) $(CC) -c $(ALL_CFLAGS) $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
@PROFILE_CMT@ $(Q) $(CC) $(ALL_CFLAGS) -g -pg -o profiled/$*.o -c $<
all:: profiled $(SPROGS) $(UPROGS) $(USPROGS) $(SMANPAGES) $(UMANPAGES) \
$(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
$(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
- $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
$(srcdir)/util.h profile.h prof_err.h $(top_srcdir)/version.h \
- $(srcdir)/nls-enable.h $(top_srcdir)/lib/quota/quotaio.h \
- $(top_srcdir)/lib/quota/dqblk_v2.h $(top_srcdir)/lib/quota/quotaio_tree.h \
- $(top_srcdir)/lib/../e2fsck/dict.h $(srcdir)/mke2fs.h
+ $(top_srcdir)/lib/ext2fs/ext2fs.h \
+ $(top_srcdir)/lib/quota/quotaio.h $(top_srcdir)/lib/quota/dqblk_v2.h \
+ $(top_srcdir)/lib/quota/quotaio_tree.h $(top_srcdir)/lib/../e2fsck/dict.h \
+ $(srcdir)/mke2fs.h $(srcdir)/create_inode.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(srcdir)/nls-enable.h
mk_hugefiles.o: $(srcdir)/mk_hugefiles.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
$(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fsP.h \
$(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
$(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
$(srcdir)/e2freefrag.h
+create_inode.o: $(srcdir)/create_inode.c $(srcdir)/create_inode.h \
+ $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/e2p/e2p.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
+ $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
+ $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
+ $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
+ $(srcdir)/nls-enable.h
--- /dev/null
+#include <time.h>
+#include <unistd.h>
+
+#include "create_inode.h"
+
+#if __STDC_VERSION__ < 199901L
+# if __GNUC__ >= 2
+# define __func__ __FUNCTION__
+# else
+# define __func__ "<unknown>"
+# endif
+#endif
+
+/* 64KiB is the minimium blksize to best minimize system call overhead. */
+#ifndef IO_BUFSIZE
+#define IO_BUFSIZE 64*1024
+#endif
+
+/* Block size for `st_blocks' */
+#ifndef S_BLKSIZE
+#define S_BLKSIZE 512
+#endif
+
+/* Link an inode number to a directory */
+static errcode_t add_link(ext2_filsys fs, ext2_ino_t parent_ino,
+ ext2_ino_t ino, const char *name)
+{
+ struct ext2_inode inode;
+ errcode_t retval;
+
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval) {
+ com_err(__func__, retval, "while reading inode %u", ino);
+ return retval;
+ }
+
+ retval = ext2fs_link(fs, parent_ino, name, ino, inode.i_flags);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(fs, parent_ino);
+ if (retval) {
+ com_err(__func__, retval, "while expanding directory");
+ return retval;
+ }
+ retval = ext2fs_link(fs, parent_ino, name, ino, inode.i_flags);
+ }
+ if (retval) {
+ com_err(__func__, retval, "while linking %s", name);
+ return retval;
+ }
+
+ inode.i_links_count++;
+
+ retval = ext2fs_write_inode(fs, ino, &inode);
+ if (retval)
+ com_err(__func__, retval, "while writing inode %u", ino);
+
+ return retval;
+}
+
+/* Fill the uid, gid, mode and time for the inode */
+static void fill_inode(struct ext2_inode *inode, struct stat *st)
+{
+ if (st != NULL) {
+ inode->i_uid = st->st_uid;
+ inode->i_gid = st->st_gid;
+ inode->i_mode |= st->st_mode;
+ inode->i_atime = st->st_atime;
+ inode->i_mtime = st->st_mtime;
+ inode->i_ctime = st->st_ctime;
+ }
+}
+
+/* Set the uid, gid, mode and time for the inode */
+static errcode_t set_inode_extra(ext2_filsys fs, ext2_ino_t cwd,
+ ext2_ino_t ino, struct stat *st)
+{
+ errcode_t retval;
+ struct ext2_inode inode;
+
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval) {
+ com_err(__func__, retval, "while reading inode %u", ino);
+ return retval;
+ }
+
+ fill_inode(&inode, st);
+
+ retval = ext2fs_write_inode(fs, ino, &inode);
+ if (retval)
+ com_err(__func__, retval, "while writing inode %u", ino);
+ return retval;
+}
+
+/* Make a special files (block and character devices), fifo's, and sockets */
+errcode_t do_mknod_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
+ struct stat *st)
+{
+ ext2_ino_t ino;
+ errcode_t retval;
+ struct ext2_inode inode;
+ unsigned long major, minor, mode;
+ int filetype;
+
+ switch(st->st_mode & S_IFMT) {
+ case S_IFCHR:
+ mode = LINUX_S_IFCHR;
+ filetype = EXT2_FT_CHRDEV;
+ break;
+ case S_IFBLK:
+ mode = LINUX_S_IFBLK;
+ filetype = EXT2_FT_BLKDEV;
+ break;
+ case S_IFIFO:
+ mode = LINUX_S_IFIFO;
+ filetype = EXT2_FT_FIFO;
+ break;
+ case S_IFSOCK:
+ mode = LINUX_S_IFSOCK;
+ filetype = EXT2_FT_SOCK;
+ default:
+ abort();
+ /* NOTREACHED */
+ }
+
+ if (!(fs->flags & EXT2_FLAG_RW)) {
+ com_err(__func__, 0, "Filesystem opened read/only");
+ return EROFS;
+ }
+ retval = ext2fs_new_inode(fs, cwd, 010755, 0, &ino);
+ if (retval) {
+ com_err(__func__, retval, 0);
+ return retval;
+ }
+
+#ifdef DEBUGFS
+ printf("Allocated inode: %u\n", ino);
+#endif
+ retval = ext2fs_link(fs, cwd, name, ino, filetype);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(fs, cwd);
+ if (retval) {
+ com_err(__func__, retval, "while expanding directory");
+ return retval;
+ }
+ retval = ext2fs_link(fs, cwd, name, ino, filetype);
+ }
+ if (retval) {
+ com_err(name, retval, 0);
+ return -1;
+ }
+ if (ext2fs_test_inode_bitmap2(fs->inode_map, ino))
+ com_err(__func__, 0, "Warning: inode already set");
+ ext2fs_inode_alloc_stats2(fs, ino, +1, 0);
+ memset(&inode, 0, sizeof(inode));
+ inode.i_mode = mode;
+ inode.i_atime = inode.i_ctime = inode.i_mtime =
+ fs->now ? fs->now : time(0);
+
+ major = major(st->st_rdev);
+ minor = minor(st->st_rdev);
+
+ if ((major < 256) && (minor < 256)) {
+ inode.i_block[0] = major * 256 + minor;
+ inode.i_block[1] = 0;
+ } else {
+ inode.i_block[0] = 0;
+ inode.i_block[1] = (minor & 0xff) | (major << 8) |
+ ((minor & ~0xff) << 12);
+ }
+ inode.i_links_count = 1;
+
+ retval = ext2fs_write_new_inode(fs, ino, &inode);
+ if (retval)
+ com_err(__func__, retval, "while creating inode %u", ino);
+
+ return retval;
+}
+
+/* Make a symlink name -> target */
+errcode_t do_symlink_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
+ char *target, ext2_ino_t root)
+{
+ char *cp;
+ ext2_ino_t parent_ino;
+ errcode_t retval;
+ struct ext2_inode inode;
+ struct stat st;
+
+ cp = strrchr(name, '/');
+ if (cp) {
+ *cp = 0;
+ retval = ext2fs_namei(fs, root, cwd, name, &parent_ino);
+ if (retval) {
+ com_err(name, retval, 0);
+ return retval;
+ }
+ name = cp+1;
+ } else
+ parent_ino = cwd;
+
+try_again:
+ retval = ext2fs_symlink(fs, parent_ino, 0, name, target);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(fs, parent_ino);
+ if (retval) {
+ com_err("do_symlink_internal", retval,
+ "while expanding directory");
+ return retval;
+ }
+ goto try_again;
+ }
+ if (retval)
+ com_err("ext2fs_symlink", retval, 0);
+ return retval;
+}
+
+/* Make a directory in the fs */
+errcode_t do_mkdir_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
+ struct stat *st, ext2_ino_t root)
+{
+ char *cp;
+ ext2_ino_t parent_ino, ino;
+ errcode_t retval;
+ struct ext2_inode inode;
+
+
+ cp = strrchr(name, '/');
+ if (cp) {
+ *cp = 0;
+ retval = ext2fs_namei(fs, root, cwd, name, &parent_ino);
+ if (retval) {
+ com_err(name, retval, 0);
+ return retval;
+ }
+ name = cp+1;
+ } else
+ parent_ino = cwd;
+
+try_again:
+ retval = ext2fs_mkdir(fs, parent_ino, 0, name);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(fs, parent_ino);
+ if (retval) {
+ com_err(__func__, retval, "while expanding directory");
+ return retval;
+ }
+ goto try_again;
+ }
+ if (retval)
+ com_err("ext2fs_mkdir", retval, 0);
+ return retval;
+}
+
+static errcode_t copy_file(ext2_filsys fs, int fd, ext2_ino_t newfile,
+ int bufsize, int make_holes)
+{
+ ext2_file_t e2_file;
+ errcode_t retval;
+ int got;
+ unsigned int written;
+ char *buf;
+ char *ptr;
+ char *zero_buf;
+ int cmp;
+
+ retval = ext2fs_file_open(fs, newfile,
+ EXT2_FILE_WRITE, &e2_file);
+ if (retval)
+ return retval;
+
+ retval = ext2fs_get_mem(bufsize, &buf);
+ if (retval) {
+ com_err("copy_file", retval, "can't allocate buffer\n");
+ return retval;
+ }
+
+ /* This is used for checking whether the whole block is zero */
+ retval = ext2fs_get_memzero(bufsize, &zero_buf);
+ if (retval) {
+ com_err("copy_file", retval, "can't allocate buffer\n");
+ ext2fs_free_mem(&buf);
+ return retval;
+ }
+
+ while (1) {
+ got = read(fd, buf, bufsize);
+ if (got == 0)
+ break;
+ if (got < 0) {
+ retval = errno;
+ goto fail;
+ }
+ ptr = buf;
+
+ /* Sparse copy */
+ if (make_holes) {
+ /* Check whether all is zero */
+ cmp = memcmp(ptr, zero_buf, got);
+ if (cmp == 0) {
+ /* The whole block is zero, make a hole */
+ retval = ext2fs_file_lseek(e2_file, got,
+ EXT2_SEEK_CUR,
+ NULL);
+ if (retval)
+ goto fail;
+ got = 0;
+ }
+ }
+
+ /* Normal copy */
+ while (got > 0) {
+ retval = ext2fs_file_write(e2_file, ptr,
+ got, &written);
+ if (retval)
+ goto fail;
+
+ got -= written;
+ ptr += written;
+ }
+ }
+ ext2fs_free_mem(&buf);
+ ext2fs_free_mem(&zero_buf);
+ retval = ext2fs_file_close(e2_file);
+ return retval;
+
+fail:
+ ext2fs_free_mem(&buf);
+ ext2fs_free_mem(&zero_buf);
+ (void) ext2fs_file_close(e2_file);
+ return retval;
+}
+
+static int is_hardlink(struct hdlinks_s *hdlinks, dev_t dev, ino_t ino)
+{
+ int i;
+
+ for (i = 0; i < hdlinks->count; i++) {
+ if (hdlinks->hdl[i].src_dev == dev &&
+ hdlinks->hdl[i].src_ino == ino)
+ return i;
+ }
+ return -1;
+}
+
+/* Copy the native file to the fs */
+errcode_t do_write_internal(ext2_filsys fs, ext2_ino_t cwd, const char *src,
+ const char *dest, ext2_ino_t root)
+{
+ int fd;
+ struct stat statbuf;
+ ext2_ino_t newfile;
+ errcode_t retval;
+ struct ext2_inode inode;
+ int bufsize = IO_BUFSIZE;
+ int make_holes = 0;
+
+ fd = open(src, O_RDONLY);
+ if (fd < 0) {
+ com_err(src, errno, 0);
+ return errno;
+ }
+ if (fstat(fd, &statbuf) < 0) {
+ com_err(src, errno, 0);
+ close(fd);
+ return errno;
+ }
+
+ retval = ext2fs_namei(fs, root, cwd, dest, &newfile);
+ if (retval == 0) {
+ close(fd);
+ return EXT2_ET_FILE_EXISTS;
+ }
+
+ retval = ext2fs_new_inode(fs, cwd, 010755, 0, &newfile);
+ if (retval) {
+ com_err(__func__, retval, 0);
+ close(fd);
+ return retval;
+ }
+#ifdef DEBUGFS
+ printf("Allocated inode: %u\n", newfile);
+#endif
+ retval = ext2fs_link(fs, cwd, dest, newfile,
+ EXT2_FT_REG_FILE);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(fs, cwd);
+ if (retval) {
+ com_err(__func__, retval, "while expanding directory");
+ close(fd);
+ return retval;
+ }
+ retval = ext2fs_link(fs, cwd, dest, newfile,
+ EXT2_FT_REG_FILE);
+ }
+ if (retval) {
+ com_err(dest, retval, 0);
+ close(fd);
+ return errno;
+ }
+ if (ext2fs_test_inode_bitmap2(fs->inode_map, newfile))
+ com_err(__func__, 0, "Warning: inode already set");
+ ext2fs_inode_alloc_stats2(fs, newfile, +1, 0);
+ memset(&inode, 0, sizeof(inode));
+ inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
+ inode.i_atime = inode.i_ctime = inode.i_mtime =
+ fs->now ? fs->now : time(0);
+ inode.i_links_count = 1;
+ inode.i_size = statbuf.st_size;
+ if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA)) {
+ inode.i_flags |= EXT4_INLINE_DATA_FL;
+ } else if (fs->super->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_EXTENTS) {
+ int i;
+ struct ext3_extent_header *eh;
+
+ eh = (struct ext3_extent_header *) &inode.i_block[0];
+ eh->eh_depth = 0;
+ eh->eh_entries = 0;
+ eh->eh_magic = ext2fs_cpu_to_le16(EXT3_EXT_MAGIC);
+ i = (sizeof(inode.i_block) - sizeof(*eh)) /
+ sizeof(struct ext3_extent);
+ eh->eh_max = ext2fs_cpu_to_le16(i);
+ inode.i_flags |= EXT4_EXTENTS_FL;
+ }
+
+ retval = ext2fs_write_new_inode(fs, newfile, &inode);
+ if (retval) {
+ com_err(__func__, retval, "while creating inode %u", newfile);
+ close(fd);
+ return retval;
+ }
+ if (inode.i_flags & EXT4_INLINE_DATA_FL) {
+ retval = ext2fs_inline_data_init(fs, newfile);
+ if (retval) {
+ com_err("copy_file", retval, 0);
+ close(fd);
+ return retval;
+ }
+ }
+ if (LINUX_S_ISREG(inode.i_mode)) {
+ if (statbuf.st_blocks < statbuf.st_size / S_BLKSIZE) {
+ make_holes = 1;
+ /*
+ * Use I/O blocksize as buffer size when
+ * copying sparse files.
+ */
+ bufsize = statbuf.st_blksize;
+ }
+ retval = copy_file(fs, fd, newfile, bufsize, make_holes);
+ if (retval)
+ com_err("copy_file", retval, 0);
+ }
+ close(fd);
+
+ return retval;
+}
+
+/* Copy files from source_dir to fs */
+static errcode_t __populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
+ const char *source_dir, ext2_ino_t root,
+ struct hdlinks_s *hdlinks)
+{
+ const char *name;
+ DIR *dh;
+ struct dirent *dent;
+ struct stat st;
+ char ln_target[PATH_MAX];
+ unsigned int save_inode;
+ ext2_ino_t ino;
+ errcode_t retval = 0;
+ int read_cnt;
+ int hdlink;
+
+ if (chdir(source_dir) < 0) {
+ com_err(__func__, errno,
+ _("while changing working directory to \"%s\""),
+ source_dir);
+ return errno;
+ }
+
+ if (!(dh = opendir("."))) {
+ com_err(__func__, errno,
+ _("while opening directory \"%s\""), source_dir);
+ return errno;
+ }
+
+ while ((dent = readdir(dh))) {
+ if ((!strcmp(dent->d_name, ".")) ||
+ (!strcmp(dent->d_name, "..")))
+ continue;
+ if (lstat(dent->d_name, &st)) {
+ com_err(__func__, errno, _("while lstat \"%s\""),
+ dent->d_name);
+ goto out;
+ }
+ name = dent->d_name;
+
+ /* Check for hardlinks */
+ save_inode = 0;
+ if (!S_ISDIR(st.st_mode) && !S_ISLNK(st.st_mode) &&
+ st.st_nlink > 1) {
+ hdlink = is_hardlink(hdlinks, st.st_dev, st.st_ino);
+ if (hdlink >= 0) {
+ retval = add_link(fs, parent_ino,
+ hdlinks->hdl[hdlink].dst_ino,
+ name);
+ if (retval) {
+ com_err(__func__, retval,
+ "while linking %s", name);
+ goto out;
+ }
+ continue;
+ } else
+ save_inode = 1;
+ }
+
+ switch(st.st_mode & S_IFMT) {
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ case S_IFSOCK:
+ retval = do_mknod_internal(fs, parent_ino, name, &st);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while creating special file "
+ "\"%s\""), name);
+ goto out;
+ }
+ break;
+ case S_IFLNK:
+ read_cnt = readlink(name, ln_target,
+ sizeof(ln_target) - 1);
+ if (read_cnt == -1) {
+ com_err(__func__, errno,
+ _("while trying to readlink \"%s\""),
+ name);
+ return errno;
+ }
+ ln_target[read_cnt] = '\0';
+ retval = do_symlink_internal(fs, parent_ino, name,
+ ln_target, root);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while writing symlink\"%s\""),
+ name);
+ goto out;
+ }
+ break;
+ case S_IFREG:
+ retval = do_write_internal(fs, parent_ino, name, name,
+ root);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while writing file \"%s\""), name);
+ goto out;
+ }
+ break;
+ case S_IFDIR:
+ retval = do_mkdir_internal(fs, parent_ino, name, &st,
+ root);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while making dir \"%s\""), name);
+ goto out;
+ }
+ retval = ext2fs_namei(fs, root, parent_ino,
+ name, &ino);
+ if (retval) {
+ com_err(name, retval, 0);
+ goto out;
+ }
+ /* Populate the dir recursively*/
+ retval = __populate_fs(fs, ino, name, root, hdlinks);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while adding dir \"%s\""), name);
+ goto out;
+ }
+ if (chdir("..")) {
+ com_err(__func__, errno, _("during cd .."));
+ retval = errno;
+ goto out;
+ }
+ break;
+ default:
+ com_err(__func__, 0,
+ _("ignoring entry \"%s\""), name);
+ }
+
+ retval = ext2fs_namei(fs, root, parent_ino, name, &ino);
+ if (retval) {
+ com_err(name, retval, 0);
+ goto out;
+ }
+
+ retval = set_inode_extra(fs, parent_ino, ino, &st);
+ if (retval) {
+ com_err(__func__, retval,
+ _("while setting inode for \"%s\""), name);
+ goto out;
+ }
+
+ /* Save the hardlink ino */
+ if (save_inode) {
+ /*
+ * Check whether need more memory, and we don't need
+ * free() since the lifespan will be over after the fs
+ * populated.
+ */
+ if (hdlinks->count == hdlinks->size) {
+ void *p = realloc(hdlinks->hdl,
+ (hdlinks->size + HDLINK_CNT) *
+ sizeof(struct hdlink_s));
+ if (p == NULL) {
+ com_err(name, errno,
+ _("Not enough memory"));
+ retval = EXT2_ET_NO_MEMORY;
+ goto out;
+ }
+ hdlinks->hdl = p;
+ hdlinks->size += HDLINK_CNT;
+ }
+ hdlinks->hdl[hdlinks->count].src_dev = st.st_dev;
+ hdlinks->hdl[hdlinks->count].src_ino = st.st_ino;
+ hdlinks->hdl[hdlinks->count].dst_ino = ino;
+ hdlinks->count++;
+ }
+ }
+
+out:
+ closedir(dh);
+ return retval;
+}
+
+errcode_t populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
+ const char *source_dir, ext2_ino_t root)
+{
+ struct hdlinks_s hdlinks;
+ errcode_t retval;
+
+ hdlinks.count = 0;
+ hdlinks.size = HDLINK_CNT;
+ hdlinks.hdl = realloc(NULL, hdlinks.size * sizeof(struct hdlink_s));
+ if (hdlinks.hdl == NULL) {
+ com_err(__func__, errno, "Not enough memory");
+ return errno;
+ }
+
+ retval = __populate_fs(fs, parent_ino, source_dir, root, &hdlinks);
+
+ free(hdlinks.hdl);
+ return retval;
+}
--- /dev/null
+#ifndef _CREATE_INODE_H
+#define _CREATE_INODE_H
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "et/com_err.h"
+#include "e2p/e2p.h"
+#include "ext2fs/ext2fs.h"
+#include "nls-enable.h"
+
+struct hdlink_s
+{
+ dev_t src_dev;
+ ino_t src_ino;
+ ext2_ino_t dst_ino;
+};
+
+struct hdlinks_s
+{
+ int count;
+ int size;
+ struct hdlink_s *hdl;
+};
+
+#define HDLINK_CNT (4)
+
+/* For populating the filesystem */
+extern errcode_t populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
+ const char *source_dir, ext2_ino_t root);
+extern errcode_t do_mknod_internal(ext2_filsys fs, ext2_ino_t cwd,
+ const char *name, struct stat *st);
+extern errcode_t do_symlink_internal(ext2_filsys fs, ext2_ino_t cwd,
+ const char *name, char *target,
+ ext2_ino_t root);
+extern errcode_t do_mkdir_internal(ext2_filsys fs, ext2_ino_t cwd,
+ const char *name, struct stat *st,
+ ext2_ino_t root);
+extern errcode_t do_write_internal(ext2_filsys fs, ext2_ino_t cwd,
+ const char *src, const char *dest,
+ ext2_ino_t root);
+
+#endif /* _CREATE_INODE_H */
{
int first = 1, bg_flags = 0;
- if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
+ if (ext2fs_has_group_desc_csum(fs))
bg_flags = ext2fs_bg_flags(fs, i);
print_bg_opt(bg_flags, EXT2_BG_INODE_UNINIT, "INODE_UNINIT",
print_range(first_block, last_block);
fputs(")", stdout);
print_bg_opts(fs, i);
- if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+ if (ext2fs_has_group_desc_csum(fs)) {
unsigned csum = ext2fs_bg_checksum(fs, i);
unsigned exp_csum = ext2fs_group_desc_csum(fs, i);
print_number(ext2fs_block_bitmap_loc(fs, i));
print_bg_rel_offset(fs, ext2fs_block_bitmap_loc(fs, i), 0,
first_block, last_block);
+ if (fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
+ printf(_(", csum 0x%08x"),
+ ext2fs_block_bitmap_checksum(fs, i));
fputs(_(", Inode bitmap at "), stdout);
print_number(ext2fs_inode_bitmap_loc(fs, i));
print_bg_rel_offset(fs, ext2fs_inode_bitmap_loc(fs, i), 0,
first_block, last_block);
+ if (fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
+ printf(_(", csum 0x%08x"),
+ ext2fs_inode_bitmap_checksum(fs, i));
fputs(_("\n Inode table at "), stdout);
print_range(ext2fs_inode_table_loc(fs, i),
ext2fs_inode_table_loc(fs, i) +
ext2fs_badblocks_list_free(bb_list);
}
+static const char *journal_checksum_type_str(__u8 type)
+{
+ switch (type) {
+ case JBD2_CRC32C_CHKSUM:
+ return "crc32c";
+ default:
+ return "unknown";
+ }
+}
+
static void print_inline_journal_information(ext2_filsys fs)
{
journal_superblock_t *jsb;
(unsigned int)ntohl(jsb->s_maxlen),
(unsigned int)ntohl(jsb->s_sequence),
(unsigned int)ntohl(jsb->s_start));
+ if (jsb->s_feature_compat &
+ ext2fs_cpu_to_be32(JFS_FEATURE_COMPAT_CHECKSUM))
+ printf(_("Journal checksum type: crc32\n"));
+ if (jsb->s_feature_incompat &
+ ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V2))
+ printf(_("Journal checksum type: %s\n"
+ "Journal checksum: 0x%08x\n"),
+ journal_checksum_type_str(jsb->s_checksum_type),
+ ext2fs_be32_to_cpu(jsb->s_checksum));
if (jsb->s_errno != 0)
printf(_("Journal errno: %d\n"),
(int) ntohl(jsb->s_errno));
exit(1);
}
+ if (jsb->s_feature_compat &
+ ext2fs_cpu_to_be32(JFS_FEATURE_COMPAT_CHECKSUM))
+ printf(_("Journal checksum type: crc32\n"));
+ if (jsb->s_feature_incompat &
+ ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V2))
+ printf(_("Journal checksum type: %s\n"
+ "Journal checksum: 0x%08x\n"),
+ journal_checksum_type_str(jsb->s_checksum_type),
+ ext2fs_be32_to_cpu(jsb->s_checksum));
+
printf(_("\nJournal block size: %u\n"
"Journal length: %u\n"
"Journal first block: %u\n"
ext2fs_inode_table_loc(fs, i)) {
unsigned int end = (unsigned) fs->inode_blocks_per_group;
/* skip unused blocks */
- if (!output_is_blk &&
- EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ if (!output_is_blk && ext2fs_has_group_desc_csum(fs))
end -= (ext2fs_bg_itable_unused(fs, i) /
EXT2_INODES_PER_BLOCK(fs->super));
for (j = 0, b = ext2fs_inode_table_loc(fs, i);
or
.BR tune2fs(8).
.TP
+.B inline_data
+Allow data to be stored in the inode and extended attribute area
+.TP
.B large_file
.br
This feature flag is set automatically by modern kernels when a file
.I number-of-inodes
]
[
+.B \-d
+.I root-directory
+]
+[
.B \-n
]
[
ratio). This allows the user to specify the number
of desired inodes directly.
.TP
+.BI \-d " root-directory"
+Add the files from the root-directory to the filesystem.
+.TP
.BI \-o " creator-os"
Overrides the default value of the "creator operating system" field of the
filesystem. The creator field is set by default to the name of the OS the
#include <stdio.h>
#include <string.h>
#include <strings.h>
-#include <fcntl.h>
#include <ctype.h>
#include <time.h>
#ifdef __linux__
#include <errno.h>
#endif
#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
#include <libgen.h>
#include <limits.h>
#include <blkid/blkid.h>
#include "ext2fs/ext2_fs.h"
#include "ext2fs/ext2fsP.h"
-#include "et/com_err.h"
#include "uuid/uuid.h"
-#include "e2p/e2p.h"
-#include "ext2fs/ext2fs.h"
#include "util.h"
#include "profile.h"
#include "prof_err.h"
#include "../version.h"
-#include "nls-enable.h"
#include "quota/quotaio.h"
#include "mke2fs.h"
+#include "create_inode.h"
#define STRIDE_LENGTH 8
char *journal_device;
static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
char **fs_types;
+const char *root_dir; /* Copy files from the specified directory */
static profile_t profile;
fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
"[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
"[-J journal-options]\n"
- "\t[-G flex-group-size] [-N number-of-inodes]\n"
+ "\t[-G flex-group-size] [-N number-of-inodes] "
+ "[-d root-directory]\n"
"\t[-m reserved-blocks-percentage] [-o creator-os]\n"
"\t[-g blocks-per-group] [-L volume-label] "
"[-M last-mounted-directory]\n\t[-O feature[,...]] "
ext2fs_badblocks_list_iterate_end(bb_iter);
}
+static void write_reserved_inodes(ext2_filsys fs)
+{
+ errcode_t retval;
+ ext2_ino_t ino;
+ struct ext2_inode *inode;
+
+ retval = ext2fs_get_mem(EXT2_INODE_SIZE(fs->super), &inode);
+ if (retval) {
+ com_err("inode_init", retval,
+ "while allocating memory");
+ exit(1);
+ }
+ bzero(inode, EXT2_INODE_SIZE(fs->super));
+
+ for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
+ ext2fs_write_inode_full(fs, ino, inode,
+ EXT2_INODE_SIZE(fs->super));
+
+ ext2fs_free_mem(&inode);
+}
+
static errcode_t packed_allocate_tables(ext2_filsys fs)
{
errcode_t retval;
ext2fs_zero_blocks2(0, 0, 0, 0, 0);
ext2fs_numeric_progress_close(fs, &progress,
_("done \n"));
+
+ /* Reserved inodes must always have correct checksums */
+ if (fs->super->s_creator_os == EXT2_OS_LINUX &&
+ fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
+ write_reserved_inodes(fs);
}
static void create_root_dir(ext2_filsys fs)
printf("\n\n");
}
+/*
+ * Returns true if making a file system for the Hurd, else 0
+ */
+static int for_hurd(const char *os)
+{
+ if (!os) {
+#ifdef __GNU__
+ return 1;
+#else
+ return 0;
+#endif
+ }
+ if (isdigit(*os))
+ return (atoi(os) == EXT2_OS_HURD);
+ return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
+}
+
/*
* Set the S_CREATOR_OS field. Return true if OS is known,
* otherwise, 0.
EXT2_FEATURE_INCOMPAT_META_BG|
EXT4_FEATURE_INCOMPAT_FLEX_BG|
EXT4_FEATURE_INCOMPAT_MMP |
- EXT4_FEATURE_INCOMPAT_64BIT,
+ EXT4_FEATURE_INCOMPAT_64BIT|
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA,
/* R/O compat */
EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
#ifdef CONFIG_QUOTA
EXT4_FEATURE_RO_COMPAT_QUOTA|
#endif
- 0
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
};
const char *size_type;
struct str_list list;
unsigned long long meg;
- int is_hurd = 0;
+ int is_hurd = for_hurd(creator_os);
if (init_list(&list))
return 0;
- if (creator_os && (!strcasecmp(creator_os, "GNU") ||
- !strcasecmp(creator_os, "hurd")))
- is_hurd = 1;
-
if (fs_type)
ext_type = fs_type;
else if (is_hurd)
}
while ((c = getopt (argc, argv,
- "b:cg:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) {
+ "b:cg:i:jl:m:no:qr:s:t:d:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) {
switch (c) {
case 'b':
blocksize = parse_num_blocks2(optarg, -1);
case 'U':
fs_uuid = optarg;
break;
+ case 'd':
+ root_dir = optarg;
+ break;
case 'v':
verbose = 1;
break;
tmp = get_string_from_profile(fs_types, "default_features",
"");
}
+ /* Mask off features which aren't supported by the Hurd */
+ if (for_hurd(creator_os)) {
+ fs_param.s_feature_incompat &= ~EXT2_FEATURE_INCOMPAT_FILETYPE;
+ fs_param.s_feature_ro_compat &=
+ ~(EXT4_FEATURE_RO_COMPAT_HUGE_FILE |
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
+ }
edit_feature(fs_features ? fs_features : tmp,
&fs_param.s_feature_compat);
if (tmp)
free(tmp);
+ /*
+ * If the user specified features incompatible with the Hurd, complain
+ */
+ if (for_hurd(creator_os)) {
+ if (fs_param.s_feature_incompat &
+ EXT2_FEATURE_INCOMPAT_FILETYPE) {
+ fprintf(stderr, _("The HURD does not support the "
+ "filetype feature.\n"));
+ exit(1);
+ }
+ if (fs_param.s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE) {
+ fprintf(stderr, _("The HURD does not support the "
+ "huge_file feature.\n"));
+ exit(1);
+ }
+ if (fs_param.s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
+ fprintf(stderr, _("The HURD does not support the "
+ "metadata_csum feature.\n"));
+ exit(1);
+ }
+ }
/* Get the hardware sector sizes, if available */
retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
if (extended_opts)
parse_extended_opts(&fs_param, extended_opts);
+ /* Don't allow user to set both metadata_csum and uninit_bg bits. */
+ if ((fs_param.s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ fs_param.s_feature_ro_compat &=
+ ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
+
/* Can't support bigalloc feature without extents feature */
if ((fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) &&
!(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
"See https://ext4.wiki.kernel.org/"
"index.php/Bigalloc for more information\n\n"));
- /* Since sparse_super is the default, we would only have a problem
+ /*
+ * Since sparse_super is the default, we would only have a problem
* here if it was explicitly disabled.
*/
if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
fs_param.s_inode_size = inode_size;
}
+ /*
+ * If inode size is 128 and inline data is enabled, we need
+ * to notify users that inline data will never be useful.
+ */
+ if ((fs_param.s_feature_incompat &
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA) &&
+ fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
+ com_err(program_name, 0,
+ _("inode size is %d, inline data is useless"),
+ fs_param.s_inode_size);
+ exit(1);
+ }
+
/* Make sure number of inodes specified will fit in 32 bits */
if (num_inodes == 0) {
unsigned long long n;
int csum_flag, force_undo;
csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
force_undo = get_int_from_profile(fs_types, "force_undo", 0);
if (!force_undo && (!csum_flag || !lazy_itable_init))
return 0;
_("while setting up superblock"));
exit(1);
}
+ fs->progress_ops = &ext2fs_numeric_progress_ops;
+
+ /* Check the user's mkfs options for metadata checksumming */
+ if (!quiet &&
+ EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT3_FEATURE_INCOMPAT_EXTENTS))
+ printf(_("Extents are not enabled. The file extent "
+ "tree can be checksummed, whereas block maps "
+ "cannot. Not enabling extents reduces the "
+ "coverage of metadata checksumming. "
+ "Pass -O extents to rectify.\n"));
+ if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_INCOMPAT_64BIT))
+ printf(_("64-bit filesystem support is not "
+ "enabled. The larger fields afforded by "
+ "this feature enable full-strength "
+ "checksumming. Pass -O 64bit to rectify.\n"));
+ }
/* Calculate journal blocks */
if (!journal_device && ((journal_size) ||
(fs_param.s_feature_ro_compat &
(EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
fs->super->s_kbytes_written = 1;
}
} else
uuid_generate(fs->super->s_uuid);
+ ext2fs_init_csum_seed(fs);
/*
* Initialize the directory index variables
sizeof(fs->super->s_last_mounted));
}
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
+
if (!quiet || noaction)
show_stats(fs);
* inodes as unused; we want e2fsck to consider all
* inodes as potentially containing recoverable data.
*/
- if (fs->super->s_feature_ro_compat &
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+ if (ext2fs_has_group_desc_csum(fs)) {
for (i = 0; i < fs->group_desc_count; i++)
ext2fs_bg_itable_unused_set(fs, i, 0);
}
retval = mk_hugefiles(fs);
if (retval)
com_err(program_name, retval, "while creating huge files");
+ /* Copy files from the specified directory */
+ if (root_dir) {
+ if (!quiet)
+ printf("%s", _("Copying files into the device: "));
+
+ retval = populate_fs(fs, EXT2_ROOT_INO, root_dir,
+ EXT2_ROOT_INO);
+ if (retval) {
+ com_err(program_name, retval, "%s",
+ _("\nError while populating file system\n"));
+ exit(1);
+ } else if (!quiet)
+ printf("%s", _("done\n"));
+ }
if (!quiet)
printf("%s", _("Writing superblocks and "
inode_size = 256
}
ext4dev = {
- features = has_journal,extent,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize
+ features = has_journal,extent,huge_file,flex_bg,metadata_csum,inline_data,64bit,dir_nlink,extra_isize
inode_size = 256
options = test_fs=1
}
static unsigned long new_inode_size;
static char *ext_mount_opts;
static int usrquota, grpquota;
+static int rewrite_checksums;
int journal_size, journal_flags;
char *journal_device;
static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
+static const char *please_dir_fsck =
+ N_("Please run e2fsck -D on the filesystem.\n");
#ifdef CONFIG_BUILD_FINDFS
void do_findfs(int argc, char **argv);
EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
+ EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
#ifdef CONFIG_QUOTA
EXT4_FEATURE_RO_COMPAT_QUOTA |
#endif
- EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
};
static __u32 clear_ok_features[3] = {
EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
#ifdef CONFIG_QUOTA
EXT4_FEATURE_RO_COMPAT_QUOTA |
#endif
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
};
/*
return 1;
}
+static void request_dir_fsck_afterwards(ext2_filsys fs)
+{
+ static int requested;
+
+ if (requested++)
+ return;
+ fs->super->s_state &= ~EXT2_VALID_FS;
+ printf("\n%s\n", _(please_dir_fsck));
+ if (mount_flags & EXT2_MF_READONLY)
+ printf(_("(and reboot afterwards!)\n"));
+}
+
static void request_fsck_afterwards(ext2_filsys fs)
{
static int requested = 0;
printf("%s", _("(and reboot afterwards!)\n"));
}
+/* Rewrite extents */
+static errcode_t rewrite_extents(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode)
+{
+ ext2_extent_handle_t handle;
+ struct ext2fs_extent extent;
+ int op = EXT2_EXTENT_ROOT;
+ errcode_t errcode;
+
+ if (!(inode->i_flags & EXT4_EXTENTS_FL))
+ return 0;
+
+ errcode = ext2fs_extent_open(fs, ino, &handle);
+ if (errcode)
+ return errcode;
+
+ while (1) {
+ errcode = ext2fs_extent_get(handle, op, &extent);
+ if (errcode)
+ break;
+
+ /* Root node is in the separately checksummed inode */
+ if (op == EXT2_EXTENT_ROOT) {
+ op = EXT2_EXTENT_NEXT;
+ continue;
+ }
+ op = EXT2_EXTENT_NEXT;
+
+ /* Only visit the first extent in each extent block */
+ if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
+ continue;
+ errcode = ext2fs_extent_replace(handle, 0, &extent);
+ if (errcode)
+ break;
+ }
+
+ /* Ok if we run off the end */
+ if (errcode == EXT2_ET_EXTENT_NO_NEXT)
+ errcode = 0;
+ return errcode;
+}
+
+/*
+ * Rewrite directory blocks with checksums
+ */
+struct rewrite_dir_context {
+ char *buf;
+ errcode_t errcode;
+ ext2_ino_t dir;
+ int is_htree;
+};
+
+static int rewrite_dir_block(ext2_filsys fs,
+ blk64_t *blocknr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk64_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct ext2_dx_countlimit *dcl = NULL;
+ struct rewrite_dir_context *ctx = priv_data;
+ int dcl_offset, changed = 0;
+
+ ctx->errcode = ext2fs_read_dir_block4(fs, *blocknr, ctx->buf, 0,
+ ctx->dir);
+ if (ctx->errcode)
+ return BLOCK_ABORT;
+
+ /* if htree node... */
+ if (ctx->is_htree)
+ ext2fs_get_dx_countlimit(fs, (struct ext2_dir_entry *)ctx->buf,
+ &dcl, &dcl_offset);
+ if (dcl) {
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ /* Ensure limit is the max size */
+ int max_entries = (fs->blocksize - dcl_offset) /
+ sizeof(struct ext2_dx_entry);
+ if (ext2fs_le16_to_cpu(dcl->limit) != max_entries) {
+ changed = 1;
+ dcl->limit = ext2fs_cpu_to_le16(max_entries);
+ }
+ } else {
+ /* If htree block is full then rebuild the dir */
+ if (ext2fs_le16_to_cpu(dcl->count) ==
+ ext2fs_le16_to_cpu(dcl->limit)) {
+ request_dir_fsck_afterwards(fs);
+ return 0;
+ }
+ /*
+ * Ensure dcl->limit is small enough to leave room for
+ * the checksum tail.
+ */
+ int max_entries = (fs->blocksize - (dcl_offset +
+ sizeof(struct ext2_dx_tail))) /
+ sizeof(struct ext2_dx_entry);
+ if (ext2fs_le16_to_cpu(dcl->limit) != max_entries)
+ dcl->limit = ext2fs_cpu_to_le16(max_entries);
+ /* Always rewrite checksum */
+ changed = 1;
+ }
+ } else {
+ unsigned int rec_len, name_size;
+ char *top = ctx->buf + fs->blocksize;
+ struct ext2_dir_entry *de = (struct ext2_dir_entry *)ctx->buf;
+ struct ext2_dir_entry *last_de = NULL, *penultimate_de = NULL;
+
+ /* Find last and penultimate dirent */
+ while ((char *)de < top) {
+ penultimate_de = last_de;
+ last_de = de;
+ ctx->errcode = ext2fs_get_rec_len(fs, de, &rec_len);
+ if (!ctx->errcode && !rec_len)
+ ctx->errcode = EXT2_ET_DIR_CORRUPTED;
+ if (ctx->errcode)
+ return BLOCK_ABORT;
+ de = (struct ext2_dir_entry *)(((char *)de) + rec_len);
+ }
+ ctx->errcode = ext2fs_get_rec_len(fs, last_de, &rec_len);
+ if (ctx->errcode)
+ return BLOCK_ABORT;
+ name_size = ext2fs_dirent_name_len(last_de);
+
+ if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ if (!penultimate_de)
+ return 0;
+ if (last_de->inode ||
+ name_size ||
+ rec_len != sizeof(struct ext2_dir_entry_tail))
+ return 0;
+ /*
+ * The last dirent is unused and the right length to
+ * have stored a checksum. Erase it.
+ */
+ ctx->errcode = ext2fs_get_rec_len(fs, penultimate_de,
+ &rec_len);
+ if (!rec_len)
+ ctx->errcode = EXT2_ET_DIR_CORRUPTED;
+ if (ctx->errcode)
+ return BLOCK_ABORT;
+ ext2fs_set_rec_len(fs, rec_len +
+ sizeof(struct ext2_dir_entry_tail),
+ penultimate_de);
+ changed = 1;
+ } else {
+ unsigned csum_size = sizeof(struct ext2_dir_entry_tail);
+ struct ext2_dir_entry_tail *t;
+
+ /*
+ * If the last dirent looks like the tail, just update
+ * the checksum.
+ */
+ if (!last_de->inode &&
+ rec_len == csum_size) {
+ t = (struct ext2_dir_entry_tail *)last_de;
+ t->det_reserved_name_len =
+ EXT2_DIR_NAME_LEN_CSUM;
+ changed = 1;
+ goto out;
+ }
+ if (name_size & 3)
+ name_size = (name_size & ~3) + 4;
+ /* If there's not enough space for the tail, e2fsck */
+ if (rec_len <= (8 + name_size + csum_size)) {
+ request_dir_fsck_afterwards(fs);
+ return 0;
+ }
+ /* Shorten that last de and insert the tail */
+ ext2fs_set_rec_len(fs, rec_len - csum_size, last_de);
+ t = EXT2_DIRENT_TAIL(ctx->buf, fs->blocksize);
+ ext2fs_initialize_dirent_tail(fs, t);
+
+ /* Always update checksum */
+ changed = 1;
+ }
+ }
+
+out:
+ if (!changed)
+ return 0;
+
+ ctx->errcode = ext2fs_write_dir_block4(fs, *blocknr, ctx->buf,
+ 0, ctx->dir);
+ if (ctx->errcode)
+ return BLOCK_ABORT;
+
+ return 0;
+}
+
+static errcode_t rewrite_directory(ext2_filsys fs, ext2_ino_t dir,
+ struct ext2_inode *inode)
+{
+ errcode_t retval;
+ struct rewrite_dir_context ctx;
+
+ retval = ext2fs_get_mem(fs->blocksize, &ctx.buf);
+ if (retval)
+ return retval;
+
+ ctx.is_htree = (inode->i_flags & EXT2_INDEX_FL);
+ ctx.dir = dir;
+ ctx.errcode = 0;
+ retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_READ_ONLY |
+ BLOCK_FLAG_DATA_ONLY,
+ 0, rewrite_dir_block, &ctx);
+
+ ext2fs_free_mem(&ctx.buf);
+ if (retval)
+ return retval;
+
+ return ctx.errcode;
+}
+
+/*
+ * Forcibly set checksums in all inodes.
+ */
+static void rewrite_inodes(ext2_filsys fs)
+{
+ int length = EXT2_INODE_SIZE(fs->super);
+ struct ext2_inode *inode, *zero;
+ char *ea_buf;
+ ext2_inode_scan scan;
+ errcode_t retval;
+ ext2_ino_t ino;
+ blk64_t file_acl_block;
+ int inode_dirty;
+
+ if (fs->super->s_creator_os != EXT2_OS_LINUX)
+ return;
+
+ retval = ext2fs_open_inode_scan(fs, 0, &scan);
+ if (retval) {
+ com_err("set_csum", retval, "while opening inode scan");
+ exit(1);
+ }
+
+ retval = ext2fs_get_mem(length, &inode);
+ if (retval) {
+ com_err("set_csum", retval, "while allocating memory");
+ exit(1);
+ }
+
+ retval = ext2fs_get_memzero(length, &zero);
+ if (retval) {
+ com_err("set_csum", retval, "while allocating memory");
+ exit(1);
+ }
+
+ retval = ext2fs_get_mem(fs->blocksize, &ea_buf);
+ if (retval) {
+ com_err("set_csum", retval, "while allocating memory");
+ exit(1);
+ }
+
+ do {
+ retval = ext2fs_get_next_inode_full(scan, &ino, inode, length);
+ if (retval) {
+ com_err("set_csum", retval, "while getting next inode");
+ exit(1);
+ }
+ if (!ino)
+ break;
+ if (ext2fs_test_inode_bitmap2(fs->inode_map, ino)) {
+ inode_dirty = 1;
+ } else {
+ if (memcmp(inode, zero, length) != 0) {
+ memset(inode, 0, length);
+ inode_dirty = 1;
+ } else {
+ inode_dirty = 0;
+ }
+ }
+
+ if (inode_dirty) {
+ retval = ext2fs_write_inode_full(fs, ino, inode,
+ length);
+ if (retval) {
+ com_err("set_csum", retval, "while writing "
+ "inode");
+ exit(1);
+ }
+ }
+
+ retval = rewrite_extents(fs, ino, inode);
+ if (retval) {
+ com_err("rewrite_extents", retval,
+ "while rewriting extents");
+ exit(1);
+ }
+
+ if (LINUX_S_ISDIR(inode->i_mode) &&
+ ext2fs_inode_has_valid_blocks2(fs, inode)) {
+ retval = rewrite_directory(fs, ino, inode);
+ if (retval) {
+ com_err("rewrite_directory", retval,
+ "while rewriting directories");
+ exit(1);
+ }
+ }
+
+ file_acl_block = ext2fs_file_acl_block(fs, inode);
+ if (!file_acl_block)
+ continue;
+ retval = ext2fs_read_ext_attr3(fs, file_acl_block, ea_buf, ino);
+ if (retval) {
+ com_err("rewrite_eablock", retval,
+ "while rewriting extended attribute");
+ exit(1);
+ }
+ retval = ext2fs_write_ext_attr3(fs, file_acl_block, ea_buf,
+ ino);
+ if (retval) {
+ com_err("rewrite_eablock", retval,
+ "while rewriting extended attribute");
+ exit(1);
+ }
+ } while (ino);
+
+ ext2fs_free_mem(&zero);
+ ext2fs_free_mem(&inode);
+ ext2fs_free_mem(&ea_buf);
+ ext2fs_close_inode_scan(scan);
+}
+
+static void rewrite_metadata_checksums(ext2_filsys fs)
+{
+ errcode_t retval;
+ dgrp_t i;
+
+ fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ ext2fs_init_csum_seed(fs);
+ for (i = 0; i < fs->group_desc_count; i++)
+ ext2fs_group_desc_csum_set(fs, i);
+ retval = ext2fs_read_bitmaps(fs);
+ if (retval) {
+ com_err("rewrite_metadata_checksums", retval,
+ "while reading bitmaps");
+ exit(1);
+ }
+ rewrite_inodes(fs);
+ ext2fs_mark_ib_dirty(fs);
+ ext2fs_mark_bb_dirty(fs);
+ ext2fs_mmp_update2(fs, 1);
+ fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+ fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
+ else
+ fs->super->s_checksum_type = 0;
+ ext2fs_mark_super_dirty(fs);
+}
+
+static void enable_uninit_bg(ext2_filsys fs)
+{
+ struct ext2_group_desc *gd;
+ dgrp_t i;
+
+ for (i = 0; i < fs->group_desc_count; i++) {
+ gd = ext2fs_group_desc(fs, fs->group_desc, i);
+ gd->bg_itable_unused = 0;
+ gd->bg_flags = EXT2_BG_INODE_ZEROED;
+ ext2fs_group_desc_csum_set(fs, i);
+ }
+ fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+}
+
+static errcode_t zero_empty_inodes(ext2_filsys fs)
+{
+ int length = EXT2_INODE_SIZE(fs->super);
+ struct ext2_inode *inode;
+ ext2_inode_scan scan;
+ errcode_t retval;
+ ext2_ino_t ino;
+
+ retval = ext2fs_open_inode_scan(fs, 0, &scan);
+ if (retval)
+ goto out;
+
+ retval = ext2fs_get_mem(length, &inode);
+ if (retval)
+ goto out;
+
+ do {
+ retval = ext2fs_get_next_inode_full(scan, &ino, inode, length);
+ if (retval)
+ goto out;
+ if (!ino)
+ break;
+ if (!ext2fs_test_inode_bitmap2(fs->inode_map, ino)) {
+ memset(inode, 0, length);
+ retval = ext2fs_write_inode_full(fs, ino, inode,
+ length);
+ if (retval)
+ goto out;
+ }
+ } while (1);
+
+out:
+ ext2fs_free_mem(&inode);
+ ext2fs_close_inode_scan(scan);
+ return retval;
+}
+
+static void disable_uninit_bg(ext2_filsys fs, __u32 csum_feature_flag)
+{
+ struct ext2_group_desc *gd;
+ dgrp_t i;
+ errcode_t retval;
+ blk64_t b, c, d;
+ int has_super;
+
+ /* Load bitmaps to ensure that the uninit ones get written out */
+ fs->super->s_feature_ro_compat |= csum_feature_flag;
+ retval = ext2fs_read_bitmaps(fs);
+ if (retval) {
+ com_err("disable_uninit_bg", retval,
+ "while reading bitmaps");
+ return;
+ }
+ ext2fs_mark_ib_dirty(fs);
+ ext2fs_mark_bb_dirty(fs);
+ fs->super->s_feature_ro_compat &= ~csum_feature_flag;
+
+ /* If we're only turning off uninit_bg, zero the inodes */
+ if (csum_feature_flag == EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+ retval = zero_empty_inodes(fs);
+ if (retval) {
+ com_err("disable_uninit_bg", retval,
+ "while zeroing unused inodes");
+ request_fsck_afterwards(fs);
+ }
+ }
+
+ /* The bbitmap is zeroed; we must mark group metadata blocks in use */
+ for (i = 0; i < fs->group_desc_count; i++) {
+ b = ext2fs_block_bitmap_loc(fs, i);
+ ext2fs_mark_block_bitmap2(fs->block_map, b);
+ b = ext2fs_inode_bitmap_loc(fs, i);
+ ext2fs_mark_block_bitmap2(fs->block_map, b);
+
+ retval = ext2fs_super_and_bgd_loc2(fs, i, &b, &c, &d, NULL);
+ if (retval == 0 && b)
+ ext2fs_mark_block_bitmap2(fs->block_map, b);
+ if (retval == 0 && c)
+ ext2fs_mark_block_bitmap2(fs->block_map, c);
+ if (retval == 0 && d)
+ ext2fs_mark_block_bitmap2(fs->block_map, d);
+ if (retval) {
+ com_err("disable_uninit_bg", retval,
+ "while initializing block bitmaps");
+ request_fsck_afterwards(fs);
+ }
+
+ gd = ext2fs_group_desc(fs, fs->group_desc, i);
+ gd->bg_itable_unused = 0;
+ gd->bg_flags = 0;
+ ext2fs_group_desc_csum_set(fs, i);
+ }
+ fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+ ext2fs_mark_super_dirty(fs);
+}
+
/*
* Update the feature set as provided by the user.
*/
static int update_feature_set(ext2_filsys fs, char *features)
{
struct ext2_super_block *sb = fs->super;
- struct ext2_group_desc *gd;
__u32 old_features[3];
- dgrp_t i;
int type_err;
unsigned int mask_err;
}
if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
- for (i = 0; i < fs->group_desc_count; i++) {
- gd = ext2fs_group_desc(fs, fs->group_desc, i);
- gd->bg_itable_unused = 0;
- gd->bg_flags = EXT2_BG_INODE_ZEROED;
- ext2fs_group_desc_csum_set(fs, i);
- }
- fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ if (check_fsck_needed(fs))
+ exit(1);
+ rewrite_checksums = 1;
+ /* metadata_csum supersedes uninit_bg */
+ fs->super->s_feature_ro_compat &=
+ ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
+
+ /* if uninit_bg was previously off, rewrite group desc */
+ if (!(old_features[E2P_FEATURE_RO_INCOMPAT] &
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ enable_uninit_bg(fs);
+
+ /*
+ * Since metadata_csum supersedes uninit_bg, pretend like
+ * uninit_bg has been off all along.
+ */
+ old_features[E2P_FEATURE_RO_INCOMPAT] &=
+ ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
}
if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
- for (i = 0; i < fs->group_desc_count; i++) {
- gd = ext2fs_group_desc(fs, fs->group_desc, i);
- if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
- /*
- * XXX what we really should do is zap
- * uninitialized inode tables instead.
- */
- request_fsck_afterwards(fs);
- break;
- }
- gd->bg_itable_unused = 0;
- gd->bg_flags = 0;
- gd->bg_checksum = 0;
- }
- fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ if (check_fsck_needed(fs))
+ exit(1);
+ rewrite_checksums = 1;
+ /*
+ * If we're turning off metadata_csum and not turning on
+ * uninit_bg, rewrite group desc.
+ */
+ if (!(fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ disable_uninit_bg(fs,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
+ else
+ /*
+ * metadata_csum previously provided uninit_bg, so if
+ * we're also setting the uninit_bg feature bit,
+ * pretend like it was previously enabled. Checksums
+ * will be rewritten with crc16 later.
+ */
+ old_features[E2P_FEATURE_RO_INCOMPAT] |=
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
}
+ if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ /* Do not enable uninit_bg when metadata_csum enabled */
+ if (fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
+ fs->super->s_feature_ro_compat &=
+ ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
+ else
+ enable_uninit_bg(fs);
+ }
+
+ if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+ disable_uninit_bg(fs,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+
if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
EXT4_FEATURE_RO_COMPAT_QUOTA)) {
/*
int set_csum = 0;
dgrp_t i;
- if (sb->s_feature_ro_compat &
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+ if (ext2fs_has_group_desc_csum(fs)) {
/*
* Changing the UUID requires rewriting all metadata,
* which can race with a mounted fs. Don't allow that.
rc = 1;
goto closefs;
}
+ ext2fs_init_csum_seed(fs);
if (set_csum) {
for (i = 0; i < fs->group_desc_count; i++)
ext2fs_group_desc_csum_set(fs, i);
fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
}
ext2fs_mark_super_dirty(fs);
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+ rewrite_checksums = 1;
}
+ if (rewrite_checksums)
+ rewrite_metadata_checksums(fs);
if (I_flag) {
if (mount_flags & EXT2_MF_MOUNTED) {
fputs(_("The inode size may only be "
$(E) " CC $<"
$(Q) $(CC) -c $(ALL_CFLAGS) $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
all:: $(PROGS) $(TEST_PROGS) $(MANPAGES)
dgrp_t g;
int i;
- if (!(EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)))
+ if (!ext2fs_has_group_desc_csum(fs))
return;
for (g=0; g < fs->group_desc_count; g++) {
*/
group_block = ext2fs_group_first_block2(fs,
old_fs->group_desc_count);
- csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
+ csum_flag = ext2fs_has_group_desc_csum(fs);
if (access("/sys/fs/ext4/features/lazy_itable_init", F_OK) == 0)
lazy_itable_init = 1;
if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
* supports lazy inode initialization, we can skip
* initializing the inode table.
*/
- if (lazy_itable_init &&
- EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+ if (lazy_itable_init && ext2fs_has_group_desc_csum(fs)) {
retval = 0;
goto errout;
}
}
}
}
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM) &&
- (ext2fs_bg_flags_test(fs, group, EXT2_BG_BLOCK_UNINIT))) {
+
+ if (ext2fs_has_group_desc_csum(fs) &&
+ (ext2fs_bg_flags_test(fs, group, EXT2_BG_BLOCK_UNINIT))) {
/*
* If the block bitmap is uninitialized, which means
* nothing other than standard metadata in use.
for (blk = ext2fs_blocks_count(fs->super);
blk < ext2fs_blocks_count(old_fs->super); blk++) {
g = ext2fs_group_of_blk2(fs, blk);
- if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
- EXT4_FEATURE_RO_COMPAT_GDT_CSUM) &&
+ if (ext2fs_has_group_desc_csum(fs) &&
ext2fs_bg_flags_test(old_fs, g, EXT2_BG_BLOCK_UNINIT)) {
/*
* The block bitmap is uninitialized, so skip
struct process_block_struct {
ext2_resize_t rfs;
ext2_ino_t ino;
+ ext2_ino_t old_ino;
struct ext2_inode * inode;
errcode_t error;
int is_dir;
int changed;
+ int has_extents;
};
static int process_block(ext2_filsys fs, blk64_t *block_nr,
#ifdef RESIZE2FS_DEBUG
if (pb->rfs->flags & RESIZE_DEBUG_BMOVE)
printf("ino=%u, blockcnt=%lld, %llu->%llu\n",
- pb->ino, blockcnt, block, new_block);
+ pb->old_ino, blockcnt, block,
+ new_block);
#endif
block = new_block;
}
}
+
+ /*
+ * If we moved inodes and metadata_csum is enabled, we must force the
+ * extent block to be rewritten with new checksum.
+ */
+ if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ pb->has_extents &&
+ pb->old_ino != pb->ino)
+ ret |= BLOCK_CHANGED;
+
if (pb->is_dir) {
retval = ext2fs_add_dir_block2(fs->dblist, pb->ino,
block, (int) blockcnt);
return 0;
}
+static errcode_t migrate_ea_block(ext2_resize_t rfs, ext2_ino_t ino,
+ struct ext2_inode *inode, int *changed)
+{
+ char *buf;
+ blk64_t new_block;
+ errcode_t err = 0;
+
+ /* No EA block or no remapping? Quit early. */
+ if (ext2fs_file_acl_block(rfs->old_fs, inode) == 0 && !rfs->bmap)
+ return 0;
+ new_block = extent_translate(rfs->old_fs, rfs->bmap,
+ ext2fs_file_acl_block(rfs->old_fs, inode));
+ if (new_block == 0)
+ return 0;
+
+ /* Set the new ACL block */
+ ext2fs_file_acl_block_set(rfs->old_fs, inode, new_block);
+
+ /* Update checksum */
+ if (EXT2_HAS_RO_COMPAT_FEATURE(rfs->new_fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
+ err = ext2fs_get_mem(rfs->old_fs->blocksize, &buf);
+ if (err)
+ return err;
+ rfs->old_fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ err = ext2fs_read_ext_attr3(rfs->old_fs, new_block, buf, ino);
+ rfs->old_fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ if (err)
+ goto out;
+ err = ext2fs_write_ext_attr3(rfs->old_fs, new_block, buf, ino);
+ if (err)
+ goto out;
+ }
+ *changed = 1;
+
+out:
+ ext2fs_free_mem(&buf);
+ return err;
+}
+
static errcode_t inode_scan_and_fix(ext2_resize_t rfs)
{
struct process_block_struct pb;
char *block_buf = 0;
ext2_ino_t start_to_move;
blk64_t orig_size;
- blk64_t new_block;
int inode_size;
if ((rfs->old_fs->group_desc_count <=
pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
pb.changed = 0;
- if (ext2fs_file_acl_block(rfs->old_fs, inode) && rfs->bmap) {
- new_block = extent_translate(rfs->old_fs, rfs->bmap,
- ext2fs_file_acl_block(rfs->old_fs, inode));
- if (new_block) {
- ext2fs_file_acl_block_set(rfs->old_fs, inode,
- new_block);
- retval = ext2fs_write_inode_full(rfs->old_fs,
- ino, inode, inode_size);
- if (retval) goto errout;
- }
- }
-
- if (ext2fs_inode_has_valid_blocks2(rfs->old_fs, inode) &&
- (rfs->bmap || pb.is_dir)) {
- pb.ino = ino;
- retval = ext2fs_block_iterate3(rfs->old_fs,
- ino, 0, block_buf,
- process_block, &pb);
- if (retval)
- goto errout;
- if (pb.error) {
- retval = pb.error;
- goto errout;
- }
- }
+ /* Remap EA block */
+ retval = migrate_ea_block(rfs, ino, inode, &pb.changed);
+ if (retval)
+ goto errout;
+ new_inode = ino;
if (ino <= start_to_move)
- continue; /* Don't need to move it. */
+ goto remap_blocks; /* Don't need to move inode. */
/*
- * Find a new inode
+ * Find a new inode. Now that extents and directory blocks
+ * are tied to the inode number through the checksum, we must
+ * set up the new inode before we start rewriting blocks.
*/
retval = ext2fs_new_inode(rfs->new_fs, 0, 0, 0, &new_inode);
if (retval)
ext2fs_inode_alloc_stats2(rfs->new_fs, new_inode, +1,
pb.is_dir);
- if (pb.changed) {
- /* Get the new version of the inode */
- retval = ext2fs_read_inode_full(rfs->old_fs, ino,
- inode, inode_size);
- if (retval) goto errout;
- }
inode->i_ctime = time(0);
retval = ext2fs_write_inode_full(rfs->old_fs, new_inode,
inode, inode_size);
- if (retval) goto errout;
+ if (retval)
+ goto errout;
+ pb.changed = 0;
#ifdef RESIZE2FS_DEBUG
if (rfs->flags & RESIZE_DEBUG_INODEMAP)
goto errout;
}
ext2fs_add_extent_entry(rfs->imap, ino, new_inode);
+
+remap_blocks:
+ if (pb.changed)
+ retval = ext2fs_write_inode_full(rfs->old_fs,
+ new_inode,
+ inode, inode_size);
+ if (retval)
+ goto errout;
+
+ /*
+ * Update inodes to point to new blocks; schedule directory
+ * blocks for inode remapping. Need to write out dir blocks
+ * with new inode numbers if we have metadata_csum enabled.
+ */
+ if (ext2fs_inode_has_valid_blocks2(rfs->old_fs, inode) &&
+ (rfs->bmap || pb.is_dir)) {
+ pb.ino = new_inode;
+ pb.old_ino = ino;
+ pb.has_extents = inode->i_flags & EXT4_EXTENTS_FL;
+ rfs->old_fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ retval = ext2fs_block_iterate3(rfs->old_fs,
+ new_inode, 0, block_buf,
+ process_block, &pb);
+ rfs->old_fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ if (retval)
+ goto errout;
+ if (pb.error) {
+ retval = pb.error;
+ goto errout;
+ }
+ } else if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
+ (rfs->bmap || pb.is_dir)) {
+ /* inline data dir; update it too */
+ retval = ext2fs_add_dir_block2(rfs->old_fs->dblist,
+ new_inode, 0, 0);
+ if (retval)
+ goto errout;
+ }
}
io_channel_flush(rfs->old_fs->io);
struct ext2_inode inode;
ext2_ino_t new_inode;
errcode_t retval;
+ int ret = 0;
if (is->rfs->progress && offset == 0) {
io_channel_flush(is->rfs->old_fs->io);
return DIRENT_ABORT;
}
+ /*
+ * If we have checksums enabled and the inode wasn't present in the
+ * old fs, then we must rewrite all dir blocks with new checksums.
+ */
+ if (EXT2_HAS_RO_COMPAT_FEATURE(is->rfs->old_fs->super,
+ EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
+ !ext2fs_test_inode_bitmap2(is->rfs->old_fs->inode_map, dir))
+ ret |= DIRENT_CHANGED;
+
if (!dirent->inode)
- return 0;
+ return ret;
new_inode = ext2fs_extent_translate(is->rfs->imap, dirent->inode);
if (!new_inode)
- return 0;
+ return ret;
#ifdef RESIZE2FS_DEBUG
if (is->rfs->flags & RESIZE_DEBUG_INODEMAP)
printf("Inode translate (dir=%u, name=%.*s, %u->%u)\n",
- dir, dirent->name_len&0xFF, dirent->name,
+ dir, ext2fs_dirent_name_len(dirent), dirent->name,
dirent->inode, new_inode);
#endif
inode.i_mtime = inode.i_ctime = time(0);
is->err = ext2fs_write_inode(is->rfs->old_fs, dir, &inode);
if (is->err)
- return DIRENT_ABORT;
+ return ret | DIRENT_ABORT;
}
- return DIRENT_CHANGED;
+ return ret | DIRENT_CHANGED;
}
static errcode_t inode_ref_fix(ext2_resize_t rfs)
goto errout;
}
+ rfs->old_fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
retval = ext2fs_dblist_dir_iterate(rfs->old_fs->dblist,
DIRENT_FLAG_INCLUDE_EMPTY, 0,
check_and_change_inodes, &is);
+ rfs->old_fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
if (retval)
goto errout;
if (is.err) {
--- /dev/null
+debugfs edit extended attributes
+mke2fs -Fq -b 1024 test.img 512
+Exit status is 0
+ea_set / user.joe smith
+Exit status is 0
+ea_set / user.moo FEE_FIE_FOE_FUMMMMMM
+Exit status is 0
+ea_list /
+Extended attributes:
+ user.joe = "smith" (5)
+ user.moo = "FEE_FIE_FOE_FUMMMMMM" (20)
+Exit status is 0
+ea_get / user.moo
+FEE_FIE_FOE_FUMMMMMM
+Exit status is 0
+ea_get / nosuchea
+ea_get: Extended attribute key not found while getting extended attribute
+Exit status is 0
+ea_rm / user.moo
+Exit status is 0
+ea_rm / nosuchea
+ea_rm: Extended attribute key not found while removing extended attribute
+Exit status is 0
+ea_list /
+Extended attributes:
+ user.joe = "smith" (5)
+Exit status is 0
+ea_get / user.moo
+ea_get: Extended attribute key not found while getting extended attribute
+Exit status is 0
+ea_rm / user.joe
+Exit status is 0
+ea_list /
+Exit status is 0
+ea_set / user.file_based_xattr -f d_xattr_edits.tmp
+Exit status is 0
+ea_list /
+Extended attributes:
+ user.file_based_xattr = "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567\012" (108)
+Exit status is 0
+ea_get / user.file_based_xattr -f d_xattr_edits.ver.tmp
+Exit status is 0
+Compare big attribute
+e2fsck -yf -N test_filesys
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/64 files (0.0% non-contiguous), 29/512 blocks
+Exit status is 0
--- /dev/null
+edit extended attributes in debugfs
--- /dev/null
+if test -x $DEBUGFS_EXE; then
+
+OUT=$test_name.log
+EXP=$test_dir/expect
+VERIFY_FSCK_OPT=-yf
+
+TEST_DATA=$test_name.tmp
+VERIFY_DATA=$test_name.ver.tmp
+
+echo "debugfs edit extended attributes" > $OUT
+
+dd if=/dev/zero of=$TMPFILE bs=1k count=512 > /dev/null 2>&1
+
+echo "mke2fs -Fq -b 1024 test.img 512" >> $OUT
+
+$MKE2FS -Fq $TMPFILE 512 > /dev/null 2>&1
+status=$?
+echo Exit status is $status >> $OUT
+
+echo "ea_set / user.joe smith" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_set / user.joe smith" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_set / user.moo FEE_FIE_FOE_FUMMMMMM" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_set / user.moo FEE_FIE_FOE_FUMMMMMM" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_list /" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_list /" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_get / user.moo" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_get / user.moo" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_get / nosuchea" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_get / nosuchea" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_rm / user.moo" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_rm / user.moo" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_rm / nosuchea" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_rm / nosuchea" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_list /" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_list /" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_get / user.moo" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_get / user.moo" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_rm / user.joe" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_rm / user.joe" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_list /" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_list /" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567" > $TEST_DATA
+echo "ea_set / user.file_based_xattr -f $TEST_DATA" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_set / user.file_based_xattr -f $TEST_DATA" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_list /" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_list /" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "ea_get / user.file_based_xattr -f $VERIFY_DATA" > $OUT.new
+$DEBUGFS -w $TMPFILE -R "ea_get / user.file_based_xattr -f $VERIFY_DATA" >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo "Compare big attribute" > $OUT.new
+diff -u $TEST_DATA $VERIFY_DATA >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+echo e2fsck $VERIFY_FSCK_OPT -N test_filesys > $OUT.new
+$FSCK $VERIFY_FSCK_OPT -N test_filesys $TMPFILE >> $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed $OUT.new >> $OUT
+
+#
+# Do the verification
+#
+
+rm -f $TMPFILE $OUT.new
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+ echo "$test_name: $test_description: ok"
+ touch $test_name.ok
+else
+ echo "$test_name: $test_description: failed"
+ diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+unset VERIFY_FSCK_OPT NATIVE_FSCK_OPT OUT EXP TEST_DATA VERIFY_DATA
+
+else #if test -x $DEBUGFS_EXE; then
+ echo "$test_name: $test_description: skipped"
+fi
Inode 1 has EXTENTS_FL flag set on filesystem without extents support.
Clear? yes
+Inode 14 has INLINE_DATA_FL flag on filesystem without inline data support.
+Clear? yes
+
+Inode 15 has INLINE_DATA_FL flag on filesystem without inline data support.
+Clear? yes
+
Inode 15 has EXTENTS_FL flag set on filesystem without extents support.
Clear? yes
+Inode 16 has INLINE_DATA_FL flag on filesystem without inline data support.
+Clear? yes
+
Inode 16 has EXTENTS_FL flag set on filesystem without extents support.
Clear? yes
Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
Multiply-claimed block(s) in inode 2: 21
-Multiply-claimed block(s) in inode 11: 9 10 11 12 13 14 15 16 17 18 19 20
-Multiply-claimed block(s) in inode 12: 25 26
+Multiply-claimed block(s) in inode 11: 9--20
+Multiply-claimed block(s) in inode 12: 25--26
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
(There are 3 inodes containing multiply-claimed blocks.)
Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
-Multiply-claimed block(s) in inode 12: 25 26
-Multiply-claimed block(s) in inode 13: 25 26
+Multiply-claimed block(s) in inode 12: 25--26
+Multiply-claimed block(s) in inode 13: 25--26
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
(There are 2 inodes containing multiply-claimed blocks.)
Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
-Multiply-claimed block(s) in inode 12: 25 26
-Multiply-claimed block(s) in inode 13: 25 26 57 58
-Multiply-claimed block(s) in inode 14: 57 58
+Multiply-claimed block(s) in inode 12: 25--26
+Multiply-claimed block(s) in inode 13: 25--26 57--58
+Multiply-claimed block(s) in inode 14: 57--58
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
(There are 3 inodes containing multiply-claimed blocks.)
Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
-Multiply-claimed block(s) in inode 16: 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
-Multiply-claimed block(s) in inode 17: 160 161
-Multiply-claimed block(s) in inode 18: 176 177
-Multiply-claimed block(s) in inode 19: 192 193
-Multiply-claimed block(s) in inode 20: 208 209
-Multiply-claimed block(s) in inode 21: 224 225
+Multiply-claimed block(s) in inode 16: 160--239
+Multiply-claimed block(s) in inode 17: 160--161
+Multiply-claimed block(s) in inode 18: 176--177
+Multiply-claimed block(s) in inode 19: 192--193
+Multiply-claimed block(s) in inode 20: 208--209
+Multiply-claimed block(s) in inode 21: 224--225
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
(There are 6 inodes containing multiply-claimed blocks.)
Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
-Multiply-claimed block(s) in inode 7: 4 5 6 7
-Multiply-claimed block(s) in inode 12: 4 5 6 7
+Multiply-claimed block(s) in inode 7: 4--7
+Multiply-claimed block(s) in inode 12: 4--7
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
(There are 1 inodes containing multiply-claimed blocks.)
Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
-Multiply-claimed block(s) in inode 12: 3 4 6 1
-Multiply-claimed block(s) in inode 13: 2 3
+Multiply-claimed block(s) in inode 12: 3--4 6 1
+Multiply-claimed block(s) in inode 13: 2--3
Multiply-claimed block(s) in inode 14: 2
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
-Multiply-claimed block(s) in inode 12: 2 3 1
+Multiply-claimed block(s) in inode 12: 2--3 1
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
(There are 1 inodes containing multiply-claimed blocks.)
Journal starts at block 67, transaction 32
Found expected sequence 32, type 5 (revoke table) at block 67
Dumping revoke block, sequence 32, at block 67:
- Revoke FS block 0
Revoke FS block 1536
- Revoke FS block 0
Revoke FS block 1472
- Revoke FS block 0
Revoke FS block 1473
- Revoke FS block 0
Revoke FS block 1474
- Revoke FS block 0
Revoke FS block 1475
- Revoke FS block 0
Revoke FS block 1476
- Revoke FS block 0
Revoke FS block 1541
- Revoke FS block 0
Revoke FS block 1477
- Revoke FS block 0
Revoke FS block 1478
- Revoke FS block 0
Revoke FS block 1479
- Revoke FS block 0
Revoke FS block 1480
- Revoke FS block 0
Revoke FS block 1481
- Revoke FS block 0
Revoke FS block 1482
- Revoke FS block 0
Revoke FS block 1483
- Revoke FS block 0
Revoke FS block 1484
- Revoke FS block 0
Revoke FS block 1485
- Revoke FS block 0
Revoke FS block 1486
- Revoke FS block 0
Revoke FS block 1487
- Revoke FS block 0
Revoke FS block 1488
- Revoke FS block 0
Revoke FS block 1489
- Revoke FS block 0
Revoke FS block 1490
- Revoke FS block 0
Revoke FS block 1491
- Revoke FS block 0
Revoke FS block 1556
- Revoke FS block 0
Revoke FS block 1492
- Revoke FS block 0
Revoke FS block 1493
- Revoke FS block 0
Revoke FS block 1429
- Revoke FS block 0
Revoke FS block 1494
- Revoke FS block 0
Revoke FS block 1495
- Revoke FS block 0
Revoke FS block 1496
- Revoke FS block 0
Revoke FS block 1432
- Revoke FS block 0
Revoke FS block 1497
- Revoke FS block 0
Revoke FS block 1498
- Revoke FS block 0
Revoke FS block 1434
- Revoke FS block 0
Revoke FS block 1499
- Revoke FS block 0
Revoke FS block 1435
- Revoke FS block 0
Revoke FS block 1500
- Revoke FS block 0
Revoke FS block 1501
- Revoke FS block 0
Revoke FS block 1502
- Revoke FS block 0
Revoke FS block 1503
- Revoke FS block 0
Revoke FS block 1504
- Revoke FS block 0
Revoke FS block 1505
- Revoke FS block 0
Revoke FS block 1506
- Revoke FS block 0
Revoke FS block 1442
- Revoke FS block 0
Revoke FS block 1507
- Revoke FS block 0
Revoke FS block 1508
- Revoke FS block 0
Revoke FS block 1444
- Revoke FS block 0
Revoke FS block 1509
- Revoke FS block 0
Revoke FS block 1445
- Revoke FS block 0
Revoke FS block 1510
- Revoke FS block 0
Revoke FS block 1511
- Revoke FS block 0
Revoke FS block 1512
- Revoke FS block 0
Revoke FS block 1513
- Revoke FS block 0
Revoke FS block 1449
- Revoke FS block 0
Revoke FS block 1514
- Revoke FS block 0
Revoke FS block 1515
- Revoke FS block 0
Revoke FS block 1516
- Revoke FS block 0
Revoke FS block 1517
- Revoke FS block 0
Revoke FS block 1453
- Revoke FS block 0
Revoke FS block 1518
- Revoke FS block 0
Revoke FS block 1519
- Revoke FS block 0
Revoke FS block 1520
- Revoke FS block 0
Revoke FS block 1456
- Revoke FS block 0
Revoke FS block 1521
- Revoke FS block 0
Revoke FS block 1457
- Revoke FS block 0
Revoke FS block 1522
- Revoke FS block 0
Revoke FS block 1458
- Revoke FS block 0
Revoke FS block 1523
- Revoke FS block 0
Revoke FS block 1459
- Revoke FS block 0
Revoke FS block 1524
- Revoke FS block 0
Revoke FS block 1460
- Revoke FS block 0
Revoke FS block 1525
- Revoke FS block 0
Revoke FS block 1461
- Revoke FS block 0
Revoke FS block 1526
- Revoke FS block 0
Revoke FS block 1462
- Revoke FS block 0
Revoke FS block 1527
- Revoke FS block 0
Revoke FS block 1463
- Revoke FS block 0
Revoke FS block 1528
- Revoke FS block 0
Revoke FS block 1464
- Revoke FS block 0
Revoke FS block 1529
- Revoke FS block 0
Revoke FS block 1465
- Revoke FS block 0
Revoke FS block 1530
- Revoke FS block 0
Revoke FS block 1466
- Revoke FS block 0
Revoke FS block 1531
- Revoke FS block 0
Revoke FS block 1467
- Revoke FS block 0
Revoke FS block 1532
- Revoke FS block 0
Revoke FS block 1468
- Revoke FS block 0
Revoke FS block 1533
- Revoke FS block 0
Revoke FS block 1469
- Revoke FS block 0
Revoke FS block 1534
- Revoke FS block 0
Revoke FS block 1470
- Revoke FS block 0
Revoke FS block 1535
- Revoke FS block 0
Revoke FS block 1471
Found expected sequence 32, type 1 (descriptor block) at block 68
Dumping descriptor block, sequence 32, at block 68:
Found expected sequence 32, type 2 (commit block) at block 201
Found expected sequence 33, type 5 (revoke table) at block 202
Dumping revoke block, sequence 33, at block 202:
- Revoke FS block 0
Revoke FS block 1600
- Revoke FS block 0
Revoke FS block 1601
- Revoke FS block 0
Revoke FS block 1537
- Revoke FS block 0
Revoke FS block 1602
- Revoke FS block 0
Revoke FS block 1538
- Revoke FS block 0
Revoke FS block 1603
- Revoke FS block 0
Revoke FS block 1539
- Revoke FS block 0
Revoke FS block 1604
- Revoke FS block 0
Revoke FS block 1540
- Revoke FS block 0
Revoke FS block 1605
- Revoke FS block 0
Revoke FS block 1606
- Revoke FS block 0
Revoke FS block 1542
- Revoke FS block 0
Revoke FS block 1607
- Revoke FS block 0
Revoke FS block 1543
- Revoke FS block 0
Revoke FS block 1608
- Revoke FS block 0
Revoke FS block 1544
- Revoke FS block 0
Revoke FS block 1609
- Revoke FS block 0
Revoke FS block 1545
- Revoke FS block 0
Revoke FS block 1610
- Revoke FS block 0
Revoke FS block 1546
- Revoke FS block 0
Revoke FS block 1611
- Revoke FS block 0
Revoke FS block 1547
- Revoke FS block 0
Revoke FS block 1612
- Revoke FS block 0
Revoke FS block 1548
- Revoke FS block 0
Revoke FS block 1613
- Revoke FS block 0
Revoke FS block 1549
- Revoke FS block 0
Revoke FS block 1614
- Revoke FS block 0
Revoke FS block 1550
- Revoke FS block 0
Revoke FS block 1615
- Revoke FS block 0
Revoke FS block 1551
- Revoke FS block 0
Revoke FS block 1616
- Revoke FS block 0
Revoke FS block 1552
- Revoke FS block 0
Revoke FS block 1617
- Revoke FS block 0
Revoke FS block 1553
- Revoke FS block 0
Revoke FS block 1554
- Revoke FS block 0
Revoke FS block 1555
- Revoke FS block 0
Revoke FS block 1557
- Revoke FS block 0
Revoke FS block 1558
- Revoke FS block 0
Revoke FS block 1559
- Revoke FS block 0
Revoke FS block 1560
- Revoke FS block 0
Revoke FS block 1561
- Revoke FS block 0
Revoke FS block 1562
- Revoke FS block 0
Revoke FS block 1563
- Revoke FS block 0
Revoke FS block 1564
- Revoke FS block 0
Revoke FS block 1565
- Revoke FS block 0
Revoke FS block 1566
- Revoke FS block 0
Revoke FS block 1567
- Revoke FS block 0
Revoke FS block 1568
- Revoke FS block 0
Revoke FS block 1569
- Revoke FS block 0
Revoke FS block 1570
- Revoke FS block 0
Revoke FS block 1571
- Revoke FS block 0
Revoke FS block 1572
- Revoke FS block 0
Revoke FS block 1573
- Revoke FS block 0
Revoke FS block 1574
- Revoke FS block 0
Revoke FS block 1575
- Revoke FS block 0
Revoke FS block 1576
- Revoke FS block 0
Revoke FS block 1577
- Revoke FS block 0
Revoke FS block 1578
- Revoke FS block 0
Revoke FS block 1579
- Revoke FS block 0
Revoke FS block 1580
- Revoke FS block 0
Revoke FS block 1581
- Revoke FS block 0
Revoke FS block 1582
- Revoke FS block 0
Revoke FS block 1583
- Revoke FS block 0
Revoke FS block 1584
- Revoke FS block 0
Revoke FS block 1585
- Revoke FS block 0
Revoke FS block 1586
- Revoke FS block 0
Revoke FS block 1587
- Revoke FS block 0
Revoke FS block 1588
- Revoke FS block 0
Revoke FS block 1589
- Revoke FS block 0
Revoke FS block 1590
- Revoke FS block 0
Revoke FS block 1591
- Revoke FS block 0
Revoke FS block 1592
- Revoke FS block 0
Revoke FS block 1593
- Revoke FS block 0
Revoke FS block 1594
- Revoke FS block 0
Revoke FS block 1595
- Revoke FS block 0
Revoke FS block 1596
- Revoke FS block 0
Revoke FS block 1597
- Revoke FS block 0
Revoke FS block 1598
- Revoke FS block 0
Revoke FS block 1599
Found expected sequence 33, type 1 (descriptor block) at block 203
Dumping descriptor block, sequence 33, at block 203:
FSCK_OPT=-yf
+[ -f "$TMPFILE" ] && rm -f $TMPFILE
TMPFILE=$test_name.tmp
> $TMPFILE
FSCK_OPT=-yf
+[ -f "$TMPFILE" ] && rm -f $TMPFILE
TMPFILE=$test_name.tmp
> $TMPFILE
-/^[dbgumpe2fsckrsiz]* [1-9]\.[0-9]*[.-][^ ]* ([0-9]*-[A-Za-z]*-[0-9]*)/d
+/^debugfs [1-9]\.[0-9]*[.-][^ ]* ([0-9]*-[A-Za-z]*-[0-9]*)/d
+/^dumpe2fs [1-9]\.[0-9]*[.-][^ ]* ([0-9]*-[A-Za-z]*-[0-9]*)/d
+/^e2fsck [1-9]\.[0-9]*[.-][^ ]* ([0-9]*-[A-Za-z]*-[0-9]*)/d
+/^mke2fs [1-9]\.[0-9]*[.-][^ ]* ([0-9]*-[A-Za-z]*-[0-9]*)/d
+/^resize2fs [1-9]\.[0-9]*[.-][^ ]* ([0-9]*-[A-Za-z]*-[0-9]*)/d
+/^tune2fs [1-9]\.[0-9]*[.-][^ ]* ([0-9]*-[A-Za-z]*-[0-9]*)/d
s/\\015//g
/automatically checked/d
/^Directory Hash Seed:/d
FS_SIZE=65536
MKE2FS_DEVICE_SECTSIZE=2048
export MKE2FS_DEVICE_SECTSIZE
+[ -f "$TMPFILE" ] && rm -f $TMPFILE
TMPFILE=$test_name.tmp
> $TMPFILE
stat -f $TMPFILE | grep -q "Type: tmpfs"
$(E) " CC $<"
$(Q) $(CC) -c $(ALL_CFLAGS) $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
all:: $(PROGS)
resize2fs test
debugfs -R ''stat file'' test.img 2>&1 | grep ''^Inode\|in inode body\|name = ''
Inode: 1550 Type: regular Mode: 0644 Flags: 0x0
-Extended attributes stored in inode body:
- name = "propervalue" (11)
+ user.name = "propervalue" (11)
Exit status is 0
resize2fs test.img 5M
Resizing the filesystem on test.img to 5120 (1k) blocks.
Exit status is 0
debugfs -R ''stat file'' test.img 2>&1 | grep ''^Inode\|in inode body\|name = ''
Inode: 12 Type: regular Mode: 0644 Flags: 0x0
-Extended attributes stored in inode body:
- name = "propervalue" (11)
+ user.name = "propervalue" (11)
Exit status is 0
FSCK_OPT=-yf
+[ -f "$TMPFILE" ] && rm -f $TMPFILE
TMPFILE=$test_name.tmp
> $TMPFILE
FSCK_OPT=-yf
+[ -f "$TMPFILE" ] && rm -f $TMPFILE
TMPFILE=$test_name.tmp
> $TMPFILE
--- /dev/null
+mke2fs -q -t ext4 -F -o Linux -b 1024 test.img 1G
+tune2fs -f -O ^uninit_bg test.img
+
+fsck -yf -N test_filesys test.img
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/65536 files (0.0% non-contiguous), 52294/1048576 blocks
+
+mke2fs -q -t ext4 -O bigalloc -F -o Linux -b 1024 -C 8192 test.img 10G
+tune2fs -f -O ^uninit_bg test.img
+
+fsck -yf -N test_filesys test.img
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/655360 files (0.0% non-contiguous), 199864/10485760 blocks
--- /dev/null
+test_description="remove uninit_bg"
+OUT=$test_name.log
+FSCK_OPT=-yf
+EXP=$test_dir/expect
+
+cp /dev/null $TMPFILE
+rm -f $OUT.new
+
+echo mke2fs -q -t ext4 -F -o Linux -b 1024 $TMPFILE 1G >> $OUT.new
+$MKE2FS -q -t ext4 -F -o Linux -b 1024 $TMPFILE 1G >> $OUT.new 2>&1
+
+echo "tune2fs -f -O ^uninit_bg $TMPFILE" >> $OUT.new
+$TUNE2FS -f -O ^uninit_bg $TMPFILE >> $OUT.new 2>&1
+
+echo " " >> $OUT.new
+echo fsck $FSCK_OPT -N test_filesys test.img >> $OUT.new
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT.new 2>&1
+
+echo " " >> $OUT.new
+cp /dev/null $TMPFILE
+echo mke2fs -q -t ext4 -O bigalloc -F -o Linux -b 1024 -C 8192 $TMPFILE 10G >> $OUT.new
+$MKE2FS -q -t ext4 -O bigalloc -F -o Linux -b 1024 -C 8192 $TMPFILE 10G >> $OUT.new 2>&1
+
+echo "tune2fs -f -O ^uninit_bg $TMPFILE" >> $OUT.new
+$TUNE2FS -f -O ^uninit_bg $TMPFILE >> $OUT.new 2>&1
+
+echo " " >> $OUT.new
+echo fsck $FSCK_OPT -N test_filesys test.img >> $OUT.new
+$FSCK $FSCK_OPT -N test_filesys $TMPFILE >> $OUT.new 2>&1
+
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT.new > $OUT
+
+rm -f $OUT.new $TMPFILE
+
+#
+# Do the verification
+#
+
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+ echo "$test_name: $test_description: ok"
+ touch $test_name.ok
+else
+ echo "$test_name: $test_description: failed"
+ diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+fi
+
+unset IMAGE FSCK_OPT OUT EXP
$(E) " CC $<"
$(Q) $(BUILD_CC) -c $(BUILD_CFLAGS) $< -o $@
$(Q) $(CHECK_CMD) $(ALL_CFLAGS) $<
+ $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $<
PROGS= subst symlinks
--- /dev/null
+#!/bin/sed -f
+#
+# This script filters out gcc-wall crud that we're not interested in seeing.
+#
+/^cc /d
+/^kcc /d
+/^gcc /d
+/does not support `long long'/d
+/forbids long long integer constants/d
+/does not support the `ll' length modifier/d
+/does not support the `ll' printf length modifier/d
+/ANSI C forbids long long integer constants/d
+/traditional C rejects string concatenation/d
+/integer constant is unsigned in ANSI C, signed with -traditional/d
+/warning: missing initializer/d
+/warning: (near initialization for/d
+/^[ ]*from/d
+/unused parameter/d
+/e2_types.h" not found.$/d
+/e2_bitops.h" not found.$/d
#include <fcntl.h>
#include <time.h>
#include <utime.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
#ifdef HAVE_GETOPT_H
#include <getopt.h>
}
if (old)
fclose(old);
+ if (newfn)
+ free(newfn);
return (0);
}
* file may be redistributed under the GNU Public License v2.
*/
-#define E2FSPROGS_VERSION "1.42.9"
+#define E2FSPROGS_VERSION "1.43-WIP"
#define E2FSPROGS_DATE "4-Feb-2014"
projects / thirdparty / e2fsprogs.git / commitdiff
