843 lines
20 KiB
C
843 lines
20 KiB
C
/*
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* inline_data.c --- data in inode
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*
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* Copyright (C) 2012 Zheng Liu <wenqing.lz@taobao.com>
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU library
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* General Public License, version 2.
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* %End-Header%
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*/
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#include "config.h"
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#include <stdio.h>
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#include <time.h>
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#include <limits.h> /* for PATH_MAX */
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#include "ext2_fs.h"
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#include "ext2_ext_attr.h"
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#include "ext2fs.h"
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#include "ext2fsP.h"
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struct ext2_inline_data {
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ext2_filsys fs;
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ext2_ino_t ino;
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size_t ea_size; /* the size of inline data in ea area */
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void *ea_data;
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};
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static errcode_t ext2fs_inline_data_ea_set(struct ext2_inline_data *data)
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{
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struct ext2_xattr_handle *handle;
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errcode_t retval;
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retval = ext2fs_xattrs_open(data->fs, data->ino, &handle);
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if (retval)
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return retval;
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retval = ext2fs_xattrs_read(handle);
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if (retval)
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goto err;
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retval = ext2fs_xattr_set(handle, "system.data",
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data->ea_data, data->ea_size);
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err:
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(void) ext2fs_xattrs_close(&handle);
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return retval;
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}
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static errcode_t ext2fs_inline_data_ea_get(struct ext2_inline_data *data)
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{
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struct ext2_xattr_handle *handle;
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errcode_t retval;
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data->ea_size = 0;
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data->ea_data = 0;
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retval = ext2fs_xattrs_open(data->fs, data->ino, &handle);
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if (retval)
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return retval;
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retval = ext2fs_xattrs_read(handle);
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if (retval)
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goto err;
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retval = ext2fs_xattr_get(handle, "system.data",
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(void **)&data->ea_data, &data->ea_size);
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if (retval == EXT2_ET_EA_KEY_NOT_FOUND) {
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data->ea_size = 0;
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data->ea_data = NULL;
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retval = 0;
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} else if (retval)
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goto err;
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err:
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(void) ext2fs_xattrs_close(&handle);
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return retval;
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}
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errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino)
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{
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struct ext2_inline_data data;
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char empty[1] = { '\0' };
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data.fs = fs;
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data.ino = ino;
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data.ea_size = 0;
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data.ea_data = empty;
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return ext2fs_inline_data_ea_set(&data);
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}
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errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino, size_t *size)
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{
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struct ext2_inode inode;
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struct ext2_inline_data data;
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errcode_t retval;
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retval = ext2fs_read_inode(fs, ino, &inode);
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if (retval)
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return retval;
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if (!(inode.i_flags & EXT4_INLINE_DATA_FL))
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return EXT2_ET_NO_INLINE_DATA;
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data.fs = fs;
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data.ino = ino;
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retval = ext2fs_inline_data_ea_get(&data);
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if (retval)
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return retval;
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*size = EXT4_MIN_INLINE_DATA_SIZE + data.ea_size;
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return ext2fs_free_mem(&data.ea_data);
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}
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int ext2fs_inline_data_dir_iterate(ext2_filsys fs, ext2_ino_t ino,
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void *priv_data)
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{
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struct dir_context *ctx;
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struct ext2_inode inode;
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struct ext2_dir_entry dirent;
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struct ext2_inline_data data;
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int ret = BLOCK_ABORT;
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e2_blkcnt_t blockcnt = 0;
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char *old_buf;
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unsigned int old_buflen;
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int old_flags;
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ctx = (struct dir_context *)priv_data;
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old_buf = ctx->buf;
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old_buflen = ctx->buflen;
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old_flags = ctx->flags;
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ctx->flags |= DIRENT_FLAG_INCLUDE_INLINE_DATA;
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ctx->errcode = ext2fs_read_inode(fs, ino, &inode);
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if (ctx->errcode)
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goto out;
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if (!(inode.i_flags & EXT4_INLINE_DATA_FL)) {
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ctx->errcode = EXT2_ET_NO_INLINE_DATA;
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goto out;
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}
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if (!LINUX_S_ISDIR(inode.i_mode)) {
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ctx->errcode = EXT2_ET_NO_DIRECTORY;
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goto out;
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}
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ret = 0;
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/* we first check '.' and '..' dir */
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dirent.inode = ino;
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dirent.name_len = 1;
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ext2fs_set_rec_len(fs, EXT2_DIR_REC_LEN(2), &dirent);
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dirent.name[0] = '.';
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dirent.name[1] = '\0';
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ctx->buf = (char *)&dirent;
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ext2fs_get_rec_len(fs, &dirent, &ctx->buflen);
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ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
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if (ret & BLOCK_ABORT)
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goto out;
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dirent.inode = ext2fs_le32_to_cpu(inode.i_block[0]);
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dirent.name_len = 2;
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ext2fs_set_rec_len(fs, EXT2_DIR_REC_LEN(3), &dirent);
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dirent.name[0] = '.';
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dirent.name[1] = '.';
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dirent.name[2] = '\0';
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ctx->buf = (char *)&dirent;
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ext2fs_get_rec_len(fs, &dirent, &ctx->buflen);
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ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
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if (ret & BLOCK_INLINE_DATA_CHANGED) {
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errcode_t err;
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inode.i_block[0] = ext2fs_cpu_to_le32(dirent.inode);
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err = ext2fs_write_inode(fs, ino, &inode);
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if (err)
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goto out;
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ret &= ~BLOCK_INLINE_DATA_CHANGED;
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}
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if (ret & BLOCK_ABORT)
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goto out;
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ctx->buf = (char *)inode.i_block + EXT4_INLINE_DATA_DOTDOT_SIZE;
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ctx->buflen = EXT4_MIN_INLINE_DATA_SIZE - EXT4_INLINE_DATA_DOTDOT_SIZE;
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#ifdef WORDS_BIGENDIAN
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ctx->errcode = ext2fs_dirent_swab_in2(fs, ctx->buf, ctx->buflen, 0);
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if (ctx->errcode) {
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ret |= BLOCK_ABORT;
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goto out;
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}
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#endif
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ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
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if (ret & BLOCK_INLINE_DATA_CHANGED) {
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#ifdef WORDS_BIGENDIAN
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ctx->errcode = ext2fs_dirent_swab_out2(fs, ctx->buf,
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ctx->buflen, 0);
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if (ctx->errcode) {
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ret |= BLOCK_ABORT;
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goto out;
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}
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#endif
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ctx->errcode = ext2fs_write_inode(fs, ino, &inode);
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if (ctx->errcode)
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ret |= BLOCK_ABORT;
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ret &= ~BLOCK_INLINE_DATA_CHANGED;
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}
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if (ret & BLOCK_ABORT)
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goto out;
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data.fs = fs;
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data.ino = ino;
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ctx->errcode = ext2fs_inline_data_ea_get(&data);
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if (ctx->errcode) {
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ret |= BLOCK_ABORT;
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goto out;
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}
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if (data.ea_size <= 0)
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goto out1;
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ctx->buf = data.ea_data;
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ctx->buflen = data.ea_size;
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#ifdef WORDS_BIGENDIAN
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ctx->errcode = ext2fs_dirent_swab_in2(fs, ctx->buf, ctx->buflen, 0);
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if (ctx->errcode) {
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ret |= BLOCK_ABORT;
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goto out1;
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}
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#endif
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ret |= ext2fs_process_dir_block(fs, 0, blockcnt++, 0, 0, priv_data);
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if (ret & BLOCK_INLINE_DATA_CHANGED) {
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#ifdef WORDS_BIGENDIAN
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ctx->errcode = ext2fs_dirent_swab_out2(fs, ctx->buf,
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ctx->buflen, 0);
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if (ctx->errcode) {
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ret |= BLOCK_ABORT;
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goto out1;
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}
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#endif
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ctx->errcode = ext2fs_inline_data_ea_set(&data);
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if (ctx->errcode)
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ret |= BLOCK_ABORT;
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}
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out1:
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ext2fs_free_mem(&data.ea_data);
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out:
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ctx->buf = old_buf;
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ctx->buflen = old_buflen;
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ctx->flags = old_flags;
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ret &= ~(BLOCK_ABORT | BLOCK_INLINE_DATA_CHANGED);
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return ret;
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}
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errcode_t ext2fs_inline_data_ea_remove(ext2_filsys fs, ext2_ino_t ino)
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{
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struct ext2_xattr_handle *handle;
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errcode_t retval;
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retval = ext2fs_xattrs_open(fs, ino, &handle);
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if (retval)
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return retval;
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retval = ext2fs_xattrs_read(handle);
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if (retval)
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goto err;
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retval = ext2fs_xattr_remove(handle, "system.data");
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err:
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(void) ext2fs_xattrs_close(&handle);
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return retval;
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}
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static errcode_t ext2fs_inline_data_convert_dir(ext2_filsys fs, ext2_ino_t ino,
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char *bbuf, char *ibuf, int size)
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{
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struct ext2_dir_entry *dir, *dir2;
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struct ext2_dir_entry_tail *t;
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errcode_t retval;
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int offset;
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unsigned int rec_len;
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int csum_size = 0;
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int filetype = 0;
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if (ext2fs_has_feature_metadata_csum(fs->super))
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csum_size = sizeof(struct ext2_dir_entry_tail);
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/* Create '.' and '..' */
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if (ext2fs_has_feature_filetype(fs->super))
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filetype = EXT2_FT_DIR;
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/*
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* Set up entry for '.'
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*/
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dir = (struct ext2_dir_entry *) bbuf;
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dir->inode = ino;
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ext2fs_dirent_set_name_len(dir, 1);
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ext2fs_dirent_set_file_type(dir, filetype);
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dir->name[0] = '.';
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rec_len = (fs->blocksize - csum_size) - EXT2_DIR_REC_LEN(1);
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dir->rec_len = EXT2_DIR_REC_LEN(1);
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/*
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* Set up entry for '..'
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*/
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dir = (struct ext2_dir_entry *) (bbuf + dir->rec_len);
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dir->rec_len = EXT2_DIR_REC_LEN(2);
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dir->inode = ext2fs_le32_to_cpu(((__u32 *)ibuf)[0]);
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ext2fs_dirent_set_name_len(dir, 2);
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ext2fs_dirent_set_file_type(dir, filetype);
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dir->name[0] = '.';
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dir->name[1] = '.';
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/*
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* Adjust the last rec_len
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*/
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offset = EXT2_DIR_REC_LEN(1) + EXT2_DIR_REC_LEN(2);
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dir = (struct ext2_dir_entry *) (bbuf + offset);
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memcpy(bbuf + offset, ibuf + EXT4_INLINE_DATA_DOTDOT_SIZE,
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size - EXT4_INLINE_DATA_DOTDOT_SIZE);
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size += EXT2_DIR_REC_LEN(1) + EXT2_DIR_REC_LEN(2) -
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EXT4_INLINE_DATA_DOTDOT_SIZE;
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do {
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dir2 = dir;
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retval = ext2fs_get_rec_len(fs, dir, &rec_len);
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if (retval)
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goto err;
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offset += rec_len;
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dir = (struct ext2_dir_entry *) (bbuf + offset);
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} while (offset < size);
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rec_len += fs->blocksize - csum_size - offset;
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retval = ext2fs_set_rec_len(fs, rec_len, dir2);
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if (retval)
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goto err;
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if (csum_size) {
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t = EXT2_DIRENT_TAIL(bbuf, fs->blocksize);
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ext2fs_initialize_dirent_tail(fs, t);
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}
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err:
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return retval;
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}
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static errcode_t
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ext2fs_inline_data_dir_expand(ext2_filsys fs, ext2_ino_t ino,
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struct ext2_inode *inode, char *buf, size_t size)
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{
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errcode_t retval;
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blk64_t blk;
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char *blk_buf;
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retval = ext2fs_get_memzero(fs->blocksize, &blk_buf);
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if (retval)
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return retval;
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#ifdef WORDS_BIGENDIAN
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retval = ext2fs_dirent_swab_in2(fs, buf + EXT4_INLINE_DATA_DOTDOT_SIZE,
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size, 0);
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if (retval)
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goto errout;
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#endif
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/* Adjust the rec_len */
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retval = ext2fs_inline_data_convert_dir(fs, ino, blk_buf, buf, size);
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if (retval)
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goto errout;
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/* Allocate a new block */
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retval = ext2fs_new_block2(fs, 0, 0, &blk);
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if (retval)
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goto errout;
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retval = ext2fs_write_dir_block4(fs, blk, blk_buf, 0, ino);
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if (retval)
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goto errout;
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/* Update inode */
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if (ext2fs_has_feature_extents(fs->super))
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inode->i_flags |= EXT4_EXTENTS_FL;
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inode->i_flags &= ~EXT4_INLINE_DATA_FL;
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retval = ext2fs_iblk_add_blocks(fs, inode, 1);
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if (retval)
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goto errout;
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inode->i_size = fs->blocksize;
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retval = ext2fs_bmap2(fs, ino, inode, 0, BMAP_SET, 0, 0, &blk);
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if (retval)
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goto errout;
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retval = ext2fs_write_inode(fs, ino, inode);
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if (retval)
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goto errout;
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ext2fs_block_alloc_stats(fs, blk, +1);
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errout:
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ext2fs_free_mem(&blk_buf);
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return retval;
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}
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static errcode_t
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ext2fs_inline_data_file_expand(ext2_filsys fs, ext2_ino_t ino,
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struct ext2_inode *inode, char *buf, size_t size)
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{
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ext2_file_t e2_file;
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errcode_t retval;
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/* Update inode */
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memset(inode->i_block, 0, sizeof(inode->i_block));
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if (ext2fs_has_feature_extents(fs->super)) {
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ext2_extent_handle_t handle;
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inode->i_flags &= ~EXT4_EXTENTS_FL;
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retval = ext2fs_extent_open2(fs, ino, inode, &handle);
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if (retval)
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return retval;
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ext2fs_extent_free(handle);
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}
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inode->i_flags &= ~EXT4_INLINE_DATA_FL;
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inode->i_size = 0;
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retval = ext2fs_write_inode(fs, ino, inode);
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if (retval)
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return retval;
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/* Write out the block buffer */
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retval = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &e2_file);
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if (retval)
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return retval;
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retval = ext2fs_file_write(e2_file, buf, size, 0);
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ext2fs_file_close(e2_file);
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return retval;
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}
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errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino)
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{
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struct ext2_inode inode;
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struct ext2_inline_data data;
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errcode_t retval;
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size_t inline_size;
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char *inline_buf = 0;
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EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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retval = ext2fs_read_inode(fs, ino, &inode);
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if (retval)
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return retval;
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if (!(inode.i_flags & EXT4_INLINE_DATA_FL))
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return EXT2_ET_NO_INLINE_DATA;
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data.fs = fs;
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data.ino = ino;
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retval = ext2fs_inline_data_ea_get(&data);
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if (retval)
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return retval;
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inline_size = data.ea_size + EXT4_MIN_INLINE_DATA_SIZE;
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retval = ext2fs_get_mem(inline_size, &inline_buf);
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if (retval)
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goto errout;
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memcpy(inline_buf, (void *)inode.i_block, EXT4_MIN_INLINE_DATA_SIZE);
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if (data.ea_size > 0) {
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memcpy(inline_buf + EXT4_MIN_INLINE_DATA_SIZE,
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data.ea_data, data.ea_size);
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}
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memset((void *)inode.i_block, 0, EXT4_MIN_INLINE_DATA_SIZE);
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/*
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* NOTE: We must do this write -> ea_remove -> read cycle here because
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* removing the inline data EA can free the EA block, which is a change
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* that our stack copy of the inode will never see. If that happens,
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* we can end up with the EA block and lblk 0 pointing to the same
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* pblk, which is bad news.
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*/
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retval = ext2fs_write_inode(fs, ino, &inode);
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if (retval)
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goto errout;
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retval = ext2fs_inline_data_ea_remove(fs, ino);
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if (retval)
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goto errout;
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retval = ext2fs_read_inode(fs, ino, &inode);
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if (retval)
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goto errout;
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if (LINUX_S_ISDIR(inode.i_mode)) {
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retval = ext2fs_inline_data_dir_expand(fs, ino, &inode,
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inline_buf, inline_size);
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} else {
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retval = ext2fs_inline_data_file_expand(fs, ino, &inode,
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inline_buf, inline_size);
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}
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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((char *) 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 = {
|
|
.fs = fs,
|
|
.ino = ino,
|
|
};
|
|
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);
|
|
} else {
|
|
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 &&
|
|
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);
|
|
if (size > EXT4_MIN_INLINE_DATA_SIZE)
|
|
data.ea_size = size - EXT4_MIN_INLINE_DATA_SIZE;
|
|
data.ea_data = (char *) buf + EXT4_MIN_INLINE_DATA_SIZE;
|
|
}
|
|
retval = ext2fs_write_inode(fs, ino, inode);
|
|
if (retval)
|
|
return retval;
|
|
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;
|
|
|
|
/* create a new file */
|
|
retval = ext2fs_new_inode(fs, 2, 010755, 0, &newfile);
|
|
if (retval) {
|
|
com_err("file_test", retval, "while allocating 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 writing 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 %u\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[32];
|
|
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 (%u) != tmp (%u)\n",
|
|
parent, tmp);
|
|
return 1;
|
|
}
|
|
|
|
for (i = 0, dir = 13; i < 4; i++, dir++) {
|
|
tmp = 0;
|
|
snprintf(dirname, sizeof(dirname), "%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 (%u) != tmp (%u)\n",
|
|
dir, tmp);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
snprintf(dirname, sizeof(dirname), "%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;
|
|
|
|
/* 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 filesystem");
|
|
exit(1);
|
|
}
|
|
|
|
/* initialize inode cache */
|
|
if (!fs->icache) {
|
|
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");
|
|
ext2fs_free(fs);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|