static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry *db_info,
void *priv_data)
{
struct dir_context *ctx;
ctx = (struct dir_context *) priv_data;
ctx->dir = db_info->ino;
return ext2fs_process_dir_block(fs, &db_info->blk,
db_info->blockcnt, 0, 0, priv_data);
}
static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info,
void *priv_data)
{
struct dir_context *ctx;
int ret;
ctx = (struct dir_context *) priv_data;
ctx->dir = db_info->ino;
ctx->errcode = 0;
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;
}
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 out1;
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 out1;
}
#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;
}
