char msg_buffer[PATH_MAX + 1]; /* pathname of the file */
};
-typedef __u16 __le16;
-typedef __u32 __le32;
-typedef __u64 __le64;
-
-/*
- * Structure of the super block
- */
-struct ext4_super_block {
-/*00*/ __le32 s_inodes_count; /* Inodes count */
- __le32 s_blocks_count_lo; /* Blocks count */
- __le32 s_r_blocks_count_lo; /* Reserved blocks count */
- __le32 s_free_blocks_count_lo; /* Free blocks count */
-/*10*/ __le32 s_free_inodes_count; /* Free inodes count */
- __le32 s_first_data_block; /* First Data Block */
- __le32 s_log_block_size; /* Block size */
- __le32 s_obso_log_frag_size; /* Obsoleted fragment size */
-/*20*/ __le32 s_blocks_per_group; /* # Blocks per group */
- __le32 s_obso_frags_per_group; /* Obsoleted fragments per group */
- __le32 s_inodes_per_group; /* # Inodes per group */
- __le32 s_mtime; /* Mount time */
-/*30*/ __le32 s_wtime; /* Write time */
- __le16 s_mnt_count; /* Mount count */
- __le16 s_max_mnt_count; /* Maximal mount count */
- __le16 s_magic; /* Magic signature */
- __le16 s_state; /* File system state */
- __le16 s_errors; /* Behaviour when detecting errors */
- __le16 s_minor_rev_level; /* minor revision level */
-/*40*/ __le32 s_lastcheck; /* time of last check */
- __le32 s_checkinterval; /* max. time between checks */
- __le32 s_creator_os; /* OS */
- __le32 s_rev_level; /* Revision level */
-/*50*/ __le16 s_def_resuid; /* Default uid for reserved blocks */
- __le16 s_def_resgid; /* Default gid for reserved blocks */
- /*
- * These fields are for EXT4_DYNAMIC_REV superblocks only.
- *
- * Note: the difference between the compatible feature set and
- * the incompatible feature set is that if there is a bit set
- * in the incompatible feature set that the kernel doesn't
- * know about, it should refuse to mount the filesystem.
- *
- * e2fsck's requirements are more strict; if it doesn't know
- * about a feature in either the compatible or incompatible
- * feature set, it must abort and not try to meddle with
- * things it doesn't understand...
- */
- __le32 s_first_ino; /* First non-reserved inode */
- __le16 s_inode_size; /* size of inode structure */
- __le16 s_block_group_nr; /* block group # of this superblock */
- __le32 s_feature_compat; /* compatible feature set */
-/*60*/ __le32 s_feature_incompat; /* incompatible feature set */
- __le32 s_feature_ro_compat; /* readonly-compatible feature set */
-/*68*/ __u8 s_uuid[16]; /* 128-bit uuid for volume */
-/*78*/ char s_volume_name[16]; /* volume name */
-/*88*/ char s_last_mounted[64]; /* directory where last mounted */
-/*C8*/ __le32 s_algorithm_usage_bitmap; /* For compression */
- /*
- * Performance hints. Directory preallocation should only
- * happen if the EXT4_FEATURE_COMPAT_DIR_PREALLOC flag is on.
- */
- __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
- __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
- __le16 s_reserved_gdt_blocks; /* Per group desc for online growth */
- /*
- * Journaling support valid if EXT4_FEATURE_COMPAT_HAS_JOURNAL set.
- */
-/*D0*/ __u8 s_journal_uuid[16]; /* uuid of journal superblock */
-/*E0*/ __le32 s_journal_inum; /* inode number of journal file */
- __le32 s_journal_dev; /* device number of journal file */
- __le32 s_last_orphan; /* start of list of inodes to delete */
- __le32 s_hash_seed[4]; /* HTREE hash seed */
- __u8 s_def_hash_version; /* Default hash version to use */
- __u8 s_reserved_char_pad;
- __le16 s_desc_size; /* size of group descriptor */
-/*100*/ __le32 s_default_mount_opts;
- __le32 s_first_meta_bg; /* First metablock block group */
- __le32 s_mkfs_time; /* When the filesystem was created */
- __le32 s_jnl_blocks[17]; /* Backup of the journal inode */
- /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
-/*150*/ __le32 s_blocks_count_hi; /* Blocks count */
- __le32 s_r_blocks_count_hi; /* Reserved blocks count */
- __le32 s_free_blocks_count_hi; /* Free blocks count */
- __le16 s_min_extra_isize; /* All inodes have at least # bytes */
- __le16 s_want_extra_isize; /* New inodes should reserve # bytes */
- __le32 s_flags; /* Miscellaneous flags */
- __le16 s_raid_stride; /* RAID stride */
- __le16 s_mmp_interval; /* # seconds to wait in MMP checking */
- __le64 s_mmp_block; /* Block for multi-mount protection */
- __le32 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_pad2;
- __le16 s_reserved_pad;
- __u32 s_reserved[162]; /* Padding to the end of the block */
-};
-
char lost_found_dir[PATH_MAX + 1];
int block_size;
int extents_before_defrag;
unsigned int succeed_cnt;
unsigned int total_count;
__u8 log_groups_per_flex;
-__le32 blocks_per_group;
-__le32 feature_incompat;
+__u32 blocks_per_group;
+__u32 feature_incompat;
ext4_fsblk_t files_block_count;
struct frag_statistic_ino frag_rank[SHOW_FRAG_FILES];
*
* @file: the file's name.
*/
-static int is_ext4(const char *file)
+static int is_ext4(const char *file, char *devname)
{
int maxlen = 0;
int len, ret;
memset(mnt_type, 0, strlen(mnt->mnt_type) + 1);
strncpy(mnt_type, mnt->mnt_type, strlen(mnt->mnt_type));
strncpy(lost_found_dir, mnt->mnt_dir, PATH_MAX);
+ strncpy(devname, mnt->mnt_fsname, strlen(mnt->mnt_fsname) + 1);
}
endmntent(fp);
free(ext_group_head);
}
-/*
- * get_superblock_info() - Get superblock info by the file name.
- *
- * @file: the file's name.
- * @sb: the pointer of the struct ext4_super_block.
- */
-static int get_superblock_info(const char *file, struct ext4_super_block *sb)
-{
- /* Refer to /etc/mtab */
- const char *mtab = MOUNTED;
- FILE *fp = NULL;
-
- int fd = -1;
- int ret;
- size_t maxlen = 0;
- size_t len;
- char dev_name[PATH_MAX + 1];
- struct mntent *mnt = NULL;
-
- fp = setmntent(mtab, "r");
- if (fp == NULL)
- return -1;
-
- while ((mnt = getmntent(fp)) != NULL) {
- len = strlen(mnt->mnt_dir);
- ret = memcmp(file, mnt->mnt_dir, len);
- if (ret != 0)
- continue;
-
- if (len < maxlen)
- continue;
-
- maxlen = len;
-
- memset(dev_name, 0, PATH_MAX + 1);
- strncpy(dev_name, mnt->mnt_fsname,
- strnlen(mnt->mnt_fsname, PATH_MAX));
- }
-
- fd = open64(dev_name, O_RDONLY);
- if (fd < 0) {
- ret = -1;
- goto out;
- }
-
- /* Set offset to read superblock */
- ret = lseek64(fd, SUPERBLOCK_OFFSET, SEEK_SET);
- if (ret < 0)
- goto out;
-
- ret = read(fd, sb, sizeof(struct ext4_super_block));
- if (ret < 0)
- goto out;
-
-out:
- if (fd != -1)
- close(fd);
- endmntent(fp);
- return ret;
-}
-
/*
* get_best_count() - Get the file best extents count.
*
int main(int argc, char *argv[])
{
int opt;
- int i, j;
+ int i, j, ret = 0;
int flags = FTW_PHYS | FTW_MOUNT;
int arg_type = -1;
int success_flag = 0;
char dir_name[PATH_MAX + 1];
+ char dev_name[PATH_MAX + 1];
struct stat64 buf;
- struct ext4_super_block sb;
+ ext2_filsys fs = NULL;
/* Parse arguments */
if (argc == 1)
log_groups_per_flex = 0;
memset(dir_name, 0, PATH_MAX + 1);
+ memset(dev_name, 0, PATH_MAX + 1);
memset(lost_found_dir, 0, PATH_MAX + 1);
memset(frag_rank, 0,
sizeof(struct frag_statistic_ino) * SHOW_FRAG_FILES);
if (S_ISBLK(buf.st_mode)) {
/* Block device */
+ strncpy(dev_name, argv[i], strnlen(argv[i], PATH_MAX));
if (get_mount_point(argv[i], dir_name, PATH_MAX) < 0)
continue;
if (lstat64(dir_name, &buf) < 0) {
* filesystem type checked in get_mount_point()
*/
if (arg_type == FILENAME || arg_type == DIRNAME) {
- if (is_ext4(argv[i]) < 0)
+ if (is_ext4(argv[i], dev_name) < 0)
continue;
if (realpath(argv[i], dir_name) == NULL) {
perror("Couldn't get full path");
if (current_uid == ROOT_UID) {
/* Get super block info */
- memset(&sb, 0, sizeof(struct ext4_super_block));
- if (get_superblock_info(dir_name, &sb) < 0) {
+ ret = ext2fs_open(dev_name, 0, 0, block_size,
+ unix_io_manager, &fs);
+ if (ret) {
if (mode_flag & DETAIL) {
perror("Can't get super block info");
PRINT_FILE_NAME(argv[i]);
continue;
}
- blocks_per_group = ext2fs_swab32(sb.s_blocks_per_group);
- feature_incompat = ext2fs_swab32(sb.s_feature_incompat);
- log_groups_per_flex = sb.s_log_groups_per_flex;
+ blocks_per_group = fs->super->s_blocks_per_group;
+ feature_incompat = fs->super->s_feature_incompat;
+ log_groups_per_flex = fs->super->s_log_groups_per_flex;
+
+ ext2fs_close(fs);
}
switch (arg_type) {
projects / thirdparty / e2fsprogs.git / commitdiff
