sb->s_min_extra_isize = ext2fs_swab16(sb->s_min_extra_isize);
sb->s_want_extra_isize = ext2fs_swab16(sb->s_want_extra_isize);
sb->s_flags = ext2fs_swab32(sb->s_flags);
+ sb->s_mmp_update_interval = ext2fs_swab16(sb->s_mmp_update_interval);
+ sb->s_mmp_block = ext2fs_swab64(sb->s_mmp_block);
sb->s_kbytes_written = ext2fs_swab64(sb->s_kbytes_written);
sb->s_snapshot_inum = ext2fs_swab32(sb->s_snapshot_inum);
sb->s_snapshot_id = ext2fs_swab32(sb->s_snapshot_id);
}
for (; i < 17; i++)
sb->s_jnl_blocks[i] = ext2fs_swab32(sb->s_jnl_blocks[i]);
+ sb->s_backup_bgs[0] = ext2fs_swab32(sb->s_backup_bgs[0]);
+ sb->s_backup_bgs[1] = ext2fs_swab32(sb->s_backup_bgs[1]);
+ sb->s_checksum_seed = ext2fs_swab32(sb->s_checksum_seed);
}
void ext2fs_swap_group_desc2(ext2_filsys fs, struct ext2_group_desc *gdp)
{
+ struct ext4_group_desc *gdp4 = (struct ext4_group_desc *)gdp;
+
/* Do the 32-bit parts first */
gdp->bg_block_bitmap = ext2fs_swab32(gdp->bg_block_bitmap);
gdp->bg_inode_bitmap = ext2fs_swab32(gdp->bg_inode_bitmap);
gdp->bg_itable_unused = ext2fs_swab16(gdp->bg_itable_unused);
gdp->bg_checksum = ext2fs_swab16(gdp->bg_checksum);
/* If we're 32-bit, we're done */
- if (fs && (!fs->super->s_desc_size ||
- (fs->super->s_desc_size < EXT2_MIN_DESC_SIZE_64BIT)))
+ if (fs == NULL || EXT2_DESC_SIZE(fs->super) < EXT2_MIN_DESC_SIZE_64BIT)
return;
/* Swap the 64-bit parts */
- struct ext4_group_desc *gdp4 = (struct ext4_group_desc *) gdp;
gdp4->bg_block_bitmap_hi = ext2fs_swab32(gdp4->bg_block_bitmap_hi);
gdp4->bg_inode_bitmap_hi = ext2fs_swab32(gdp4->bg_inode_bitmap_hi);
gdp4->bg_inode_table_hi = ext2fs_swab32(gdp4->bg_inode_table_hi);
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]);
}
to_entry = (struct ext2_ext_attr_entry *)to_header;
}
- while ((char *)from_entry < from_end && *(__u32 *)from_entry) {
+ while ((char *)from_entry < from_end &&
+ (char *)EXT2_EXT_ATTR_NEXT(from_entry) <= from_end &&
+ *(__u32 *)from_entry) {
ext2fs_swap_ext_attr_entry(to_entry, from_entry);
from_entry = EXT2_EXT_ATTR_NEXT(from_entry);
to_entry = EXT2_EXT_ATTR_NEXT(to_entry);
{
unsigned i, has_data_blocks, extra_isize, attr_magic;
int has_extents = 0;
+ int has_inline_data = 0;
int islnk = 0;
+ int inode_size;
__u32 *eaf, *eat;
if (hostorder && LINUX_S_ISLNK(f->i_mode))
(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;
- 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)) {
+ if (!hostorder && (t->i_flags & EXT4_INLINE_DATA_FL))
+ has_inline_data = 1;
+ t->i_size_high = ext2fs_swab32(f->i_size_high);
+ /*
+ * 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) {
t->osd2.linux2.l_i_gid_high =
ext2fs_swab16 (f->osd2.linux2.l_i_gid_high);
t->osd2.linux2.l_i_checksum_lo =
- ext2fs_swab32(f->osd2.linux2.l_i_checksum_lo);
+ ext2fs_swab16(f->osd2.linux2.l_i_checksum_lo);
break;
case EXT2_OS_HURD:
t->osd1.hurd1.h_i_translator =
/* this is error case: i_extra_size is too large */
return;
}
+ if (extra_isize & 3)
+ return; /* Illegal inode extra_isize */
- if (extra_isize >= 2)
+ inode_size = EXT2_GOOD_OLD_INODE_SIZE + extra_isize;
+ if (inode_includes(inode_size, i_checksum_hi))
t->i_checksum_hi = ext2fs_swab16(f->i_checksum_hi);
- if (extra_isize >= 6)
- t->i_checksum_hi = ext2fs_swab32(f->i_checksum_hi);
- if (extra_isize >= 10)
+ if (inode_includes(inode_size, i_ctime_extra))
t->i_ctime_extra = ext2fs_swab32(f->i_ctime_extra);
- if (extra_isize >= 14)
+ if (inode_includes(inode_size, i_mtime_extra))
t->i_mtime_extra = ext2fs_swab32(f->i_mtime_extra);
- if (extra_isize >= 18)
+ if (inode_includes(inode_size, i_atime_extra))
t->i_atime_extra = ext2fs_swab32(f->i_atime_extra);
- if (extra_isize >= 22)
+ if (inode_includes(inode_size, i_crtime))
t->i_crtime = ext2fs_swab32(f->i_crtime);
- if (extra_isize >= 26)
+ if (inode_includes(inode_size, i_crtime_extra))
t->i_crtime_extra = ext2fs_swab32(f->i_crtime_extra);
- if (extra_isize >= 30)
+ if (inode_includes(inode_size, i_version_hi))
t->i_version_hi = ext2fs_swab32(f->i_version_hi);
+ if (inode_includes(inode_size, i_projid))
+ t->i_projid = ext2fs_swab16(f->i_projid);
i = sizeof(struct ext2_inode) + extra_isize + sizeof(__u32);
if (bufsize < (int) i)
sizeof(struct ext2_inode));
}
+void ext2fs_swap_mmp(struct mmp_struct *mmp)
+{
+ mmp->mmp_magic = ext2fs_swab32(mmp->mmp_magic);
+ 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