]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blobdiff - misc/e2image.c
e2image: remove redundant -fr from man page and usage message
[thirdparty/e2fsprogs.git] / misc / e2image.c
index e1c63a765e6c41eea1c5cfbda9e03a802ddd9cf5..56183ad6f7e2b735c8119a3fbd0dd2d046ef7cf1 100644 (file)
  * %End-Header%
  */
 
+#ifndef _LARGEFILE_SOURCE
 #define _LARGEFILE_SOURCE
+#endif
+#ifndef _LARGEFILE64_SOURCE
 #define _LARGEFILE64_SOURCE
+#endif
 
 #include "config.h"
 #include <fcntl.h>
@@ -39,16 +43,18 @@ extern int optind;
 
 #include "ext2fs/ext2_fs.h"
 #include "ext2fs/ext2fs.h"
+#include "ext2fs/ext2fsP.h"
 #include "et/com_err.h"
 #include "uuid/uuid.h"
 #include "e2p/e2p.h"
 #include "ext2fs/e2image.h"
 #include "ext2fs/qcow2.h"
 
+#include "support/nls-enable.h"
+#include "support/plausible.h"
 #include "../version.h"
-#include "nls-enable.h"
 
-#define QCOW_OFLAG_COPIED     (1LL << 63)
+#define QCOW_OFLAG_COPIED     (1ULL << 63)
 #define NO_BLK ((blk64_t) -1)
 
 /* Image types */
@@ -98,10 +104,11 @@ static int get_bits_from_size(size_t size)
 
 static void usage(void)
 {
-       fprintf(stderr, _("Usage: %s [ -r|Q ] [ -fr ] device image-file\n"),
+       fprintf(stderr, _("Usage: %s [ -r|-Q ] [ -f ] [ -b superblock ] [ -B blocksize ] "
+                         "device image-file\n"),
                program_name);
        fprintf(stderr, _("       %s -I device image-file\n"), program_name);
-       fprintf(stderr, _("       %s -ra  [  -cfnp  ] [ -o src_offset ] "
+       fprintf(stderr, _("       %s -ra [ -cfnp ] [ -o src_offset ] "
                          "[ -O dest_offset ] src_fs [ dest_fs ]\n"),
                program_name);
        exit (1);
@@ -234,7 +241,7 @@ static void write_image_file(ext2_filsys fs, int fd)
        write_header(fd, NULL, sizeof(struct ext2_image_hdr), fs->blocksize);
        memset(&hdr, 0, sizeof(struct ext2_image_hdr));
 
-       hdr.offset_super = seek_relative(fd, 0);
+       hdr.offset_super = ext2fs_cpu_to_le32(seek_relative(fd, 0));
        retval = ext2fs_image_super_write(fs, fd, 0);
        if (retval) {
                com_err(program_name, retval, "%s",
@@ -242,7 +249,7 @@ static void write_image_file(ext2_filsys fs, int fd)
                exit(1);
        }
 
-       hdr.offset_inode = seek_relative(fd, 0);
+       hdr.offset_inode = ext2fs_cpu_to_le32(seek_relative(fd, 0));
        retval = ext2fs_image_inode_write(fs, fd,
                                  (fd != 1) ? IMAGER_FLAG_SPARSEWRITE : 0);
        if (retval) {
@@ -251,7 +258,7 @@ static void write_image_file(ext2_filsys fs, int fd)
                exit(1);
        }
 
-       hdr.offset_blockmap = seek_relative(fd, 0);
+       hdr.offset_blockmap = ext2fs_cpu_to_le32(seek_relative(fd, 0));
        retval = ext2fs_image_bitmap_write(fs, fd, 0);
        if (retval) {
                com_err(program_name, retval, "%s",
@@ -259,7 +266,7 @@ static void write_image_file(ext2_filsys fs, int fd)
                exit(1);
        }
 
-       hdr.offset_inodemap = seek_relative(fd, 0);
+       hdr.offset_inodemap = ext2fs_cpu_to_le32(seek_relative(fd, 0));
        retval = ext2fs_image_bitmap_write(fs, fd, IMAGER_FLAG_INODEMAP);
        if (retval) {
                com_err(program_name, retval, "%s",
@@ -267,23 +274,23 @@ static void write_image_file(ext2_filsys fs, int fd)
                exit(1);
        }
 
-       hdr.magic_number = EXT2_ET_MAGIC_E2IMAGE;
+       hdr.magic_number = ext2fs_cpu_to_le32(EXT2_ET_MAGIC_E2IMAGE);
        strcpy(hdr.magic_descriptor, "Ext2 Image 1.0");
        gethostname(hdr.fs_hostname, sizeof(hdr.fs_hostname));
        strncpy(hdr.fs_device_name, device_name, sizeof(hdr.fs_device_name)-1);
        hdr.fs_device_name[sizeof(hdr.fs_device_name) - 1] = 0;
-       hdr.fs_blocksize = fs->blocksize;
+       hdr.fs_blocksize = ext2fs_cpu_to_le32(fs->blocksize);
 
        if (stat(device_name, &st) == 0)
-               hdr.fs_device = st.st_rdev;
+               hdr.fs_device = ext2fs_cpu_to_le32(st.st_rdev);
 
        if (fstat(fd, &st) == 0) {
-               hdr.image_device = st.st_dev;
-               hdr.image_inode = st.st_ino;
+               hdr.image_device = ext2fs_cpu_to_le32(st.st_dev);
+               hdr.image_inode = ext2fs_cpu_to_le32(st.st_ino);
        }
        memcpy(hdr.fs_uuid, fs->super->s_uuid, sizeof(hdr.fs_uuid));
 
-       hdr.image_time = time(0);
+       hdr.image_time = ext2fs_cpu_to_le32(time(0));
        write_header(fd, &hdr, sizeof(struct ext2_image_hdr), fs->blocksize);
 }
 
@@ -410,6 +417,14 @@ static void mark_table_blocks(ext2_filsys fs)
        }
        meta_blocks_count += fs->desc_blocks;
 
+       /*
+        *  Mark MMP block
+        */
+       if (fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) {
+               ext2fs_mark_block_bitmap2(meta_block_map, fs->super->s_mmp_block);
+               meta_blocks_count++;
+       }
+
        for (i = 0; i < fs->group_desc_count; i++) {
                /*
                 * Mark the blocks used for the inode table
@@ -546,7 +561,7 @@ static void sigint_handler(int unused EXT2FS_ATTR((unused)))
 
 #define calc_percent(a, b) ((int) ((100.0 * (((float) (a)) / \
                                             ((float) (b)))) + 0.5))
-#define calc_rate(t, b, d) (((float)(t) / ((1024 * 1024) / (b))) / (d))
+#define calc_rate(t, b, d) (((float)(t) / ((float)(1024 * 1024) / (b))) / (d))
 
 static int print_progress(blk64_t num, blk64_t total)
 {
@@ -868,8 +883,8 @@ static int init_refcount(struct ext2_qcow2_image *img, blk64_t table_offset)
        return ret;
 }
 
-static int initialize_qcow2_image(int fd, ext2_filsys fs,
-                           struct ext2_qcow2_image *image)
+static errcode_t initialize_qcow2_image(int fd, ext2_filsys fs,
+                                       struct ext2_qcow2_image *image)
 {
        struct ext2_qcow2_hdr *header;
        blk64_t total_size, offset;
@@ -877,6 +892,9 @@ static int initialize_qcow2_image(int fd, ext2_filsys fs,
        int cluster_bits = get_bits_from_size(fs->blocksize);
        struct ext2_super_block *sb = fs->super;
 
+       if (fs->blocksize < 1024)
+               return EINVAL;  /* Can never happen, but just in case... */
+
        /* Allocate header */
        ret = ext2fs_get_memzero(sizeof(struct ext2_qcow2_hdr), &header);
        if (ret)
@@ -1103,7 +1121,7 @@ static int update_refcount(int fd, struct ext2_qcow2_image *img,
        /*
         * We are relying on the fact that we are creating the qcow2
         * image sequentially, hence we will always allocate refcount
-        * block items sequentialy.
+        * block items sequentially.
         */
        ref->refcount_block[ref->refcount_block_index] = ext2fs_cpu_to_be16(1);
        ref->refcount_block_index++;
@@ -1250,7 +1268,8 @@ static void output_qcow2_meta_data_blocks(ext2_filsys fs, int fd)
        free_qcow2_image(img);
 }
 
-static void write_raw_image_file(ext2_filsys fs, int fd, int type, int flags)
+static void write_raw_image_file(ext2_filsys fs, int fd, int type, int flags,
+                                blk64_t superblock)
 {
        struct process_block_struct     pb;
        struct ext2_inode               inode;
@@ -1278,9 +1297,25 @@ static void write_raw_image_file(ext2_filsys fs, int fd, int type, int flags)
                }
        }
 
+       if (superblock) {
+               int j;
+
+               ext2fs_mark_block_bitmap2(meta_block_map, superblock);
+               meta_blocks_count++;
+
+               /*
+                * Mark the backup superblock descriptors
+                */
+               for (j = 0; j < fs->desc_blocks; j++) {
+                       ext2fs_mark_block_bitmap2(meta_block_map,
+                       ext2fs_descriptor_block_loc2(fs, superblock, j));
+               }
+               meta_blocks_count += fs->desc_blocks;
+       }
+
        mark_table_blocks(fs);
        if (show_progress)
-               printf("%s", _("Scanning inodes...\n"));
+               fprintf(stderr, "%s", _("Scanning inodes...\n"));
 
        retval = ext2fs_open_inode_scan(fs, 0, &scan);
        if (retval) {
@@ -1369,7 +1404,8 @@ static void install_image(char *device, char *image_fn, int type)
 {
        errcode_t retval;
        ext2_filsys fs;
-       int open_flag = EXT2_FLAG_IMAGE_FILE | EXT2_FLAG_64BITS;
+       int open_flag = EXT2_FLAG_IMAGE_FILE | EXT2_FLAG_64BITS |
+                       EXT2_FLAG_IGNORE_CSUM_ERRORS;
        int fd = 0;
        io_manager      io_ptr;
        io_channel      io;
@@ -1416,7 +1452,7 @@ static void install_image(char *device, char *image_fn, int type)
 
        ext2fs_rewrite_to_io(fs, io);
 
-       seek_set(fd, fs->image_header->offset_inode);
+       seek_set(fd, ext2fs_le32_to_cpu(fs->image_header->offset_inode));
 
        retval = ext2fs_image_inode_read(fs, fd, 0);
        if (retval) {
@@ -1446,7 +1482,7 @@ int main (int argc, char ** argv)
        ext2_filsys fs;
        char *image_fn, offset_opt[64];
        struct ext2_qcow2_hdr *header = NULL;
-       int open_flag = EXT2_FLAG_64BITS;
+       int open_flag = EXT2_FLAG_64BITS | EXT2_FLAG_IGNORE_CSUM_ERRORS;
        int img_type = 0;
        int flags = 0;
        int mount_flags = 0;
@@ -1456,6 +1492,8 @@ int main (int argc, char ** argv)
        int ignore_rw_mount = 0;
        int check = 0;
        struct stat st;
+       blk64_t superblock = 0;
+       int blocksize = 0;
 
 #ifdef ENABLE_NLS
        setlocale(LC_MESSAGES, "");
@@ -1469,8 +1507,14 @@ int main (int argc, char ** argv)
        if (argc && *argv)
                program_name = *argv;
        add_error_table(&et_ext2_error_table);
-       while ((c = getopt(argc, argv, "nrsIQafo:O:pc")) != EOF)
+       while ((c = getopt(argc, argv, "b:B:nrsIQafo:O:pc")) != EOF)
                switch (c) {
+               case 'b':
+                       superblock = strtoull(optarg, NULL, 0);
+                       break;
+               case 'B':
+                       blocksize = strtoul(optarg, NULL, 0);
+                       break;
                case 'I':
                        flags |= E2IMAGE_INSTALL_FLAG;
                        break;
@@ -1522,6 +1566,11 @@ int main (int argc, char ** argv)
                                                 "with raw or QCOW2 images."));
                exit(1);
        }
+       if (superblock && !img_type) {
+               com_err(program_name, 0, "%s", _("-b option can only be used "
+                                                "with raw or QCOW2 images."));
+               exit(1);
+       }
        if ((source_offset || dest_offset) && img_type != E2IMAGE_RAW) {
                com_err(program_name, 0, "%s",
                        _("Offsets are only allowed with raw images."));
@@ -1572,12 +1621,14 @@ int main (int argc, char ** argv)
                }
        }
        sprintf(offset_opt, "offset=%llu", source_offset);
-       retval = ext2fs_open2(device_name, offset_opt, open_flag, 0, 0,
-                             unix_io_manager, &fs);
+       retval = ext2fs_open2(device_name, offset_opt, open_flag,
+                             superblock, blocksize, unix_io_manager, &fs);
         if (retval) {
                com_err (program_name, retval, _("while trying to open %s"),
                         device_name);
                fputs(_("Couldn't find valid filesystem superblock.\n"), stdout);
+               if (retval == EXT2_ET_BAD_MAGIC)
+                       check_plausibility(device_name, CHECK_FS_EXIST, NULL);
                exit(1);
        }
 
@@ -1612,7 +1663,7 @@ skip_device:
                                _("Can not stat output\n"));
                        exit(1);
                }
-               if (S_ISBLK(st.st_mode))
+               if (ext2fsP_is_disk_device(st.st_mode))
                        output_is_blk = 1;
        }
        if (flags & E2IMAGE_IS_QCOW2_FLAG) {
@@ -1621,13 +1672,18 @@ skip_device:
                        if (ret == -QCOW_COMPRESSED)
                                fprintf(stderr, _("Image (%s) is compressed\n"),
                                        image_fn);
-                       if (ret == -QCOW_ENCRYPTED)
+                       else if (ret == -QCOW_ENCRYPTED)
                                fprintf(stderr, _("Image (%s) is encrypted\n"),
                                        image_fn);
-                       com_err(program_name, ret,
-                               _("while trying to convert qcow2 image"
-                                 " (%s) into raw image (%s)"),
-                               device_name, image_fn);
+                       else if (ret == -QCOW_CORRUPTED)
+                               fprintf(stderr, _("Image (%s) is corrupted\n"),
+                                       image_fn);
+                       else
+                               com_err(program_name, ret,
+                                       _("while trying to convert qcow2 image"
+                                         " (%s) into raw image (%s)"),
+                                       image_fn, device_name);
+                       ret = 1;
                }
                goto out;
        }
@@ -1656,7 +1712,7 @@ skip_device:
                exit(1);
        }
        if (img_type)
-               write_raw_image_file(fs, fd, img_type, flags);
+               write_raw_image_file(fs, fd, img_type, flags, superblock);
        else
                write_image_file(fs, fd);