void ext2fs_free(ext2_filsys fs) { if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS)) return; if (fs->image_io != fs->io) { if (fs->image_io) io_channel_close(fs->image_io); } if (fs->io) { io_channel_close(fs->io); } ext2fs_free_mem(&fs->device_name); ext2fs_free_mem(&fs->super); ext2fs_free_mem(&fs->orig_super); ext2fs_free_mem(&fs->group_desc); ext2fs_free_block_bitmap(fs->block_map); ext2fs_free_inode_bitmap(fs->inode_map); ext2fs_badblocks_list_free(fs->badblocks); fs->badblocks = 0; ext2fs_free_dblist(fs->dblist); if (fs->icache) ext2fs_free_inode_cache(fs->icache); fs->magic = 0; ext2fs_free_mem(&fs); }
static void e2fsck_journal_release(e2fsck_t ctx, journal_t *journal, int reset, int drop) { journal_superblock_t *jsb; if (drop) mark_buffer_clean(journal->j_sb_buffer); else if (!(ctx->options & E2F_OPT_READONLY)) { jsb = journal->j_superblock; jsb->s_sequence = htonl(journal->j_transaction_sequence); if (reset) jsb->s_start = 0; /* this marks the journal as empty */ mark_buffer_dirty(journal->j_sb_buffer); } brelse(journal->j_sb_buffer); if (ctx->journal_io) { if (ctx->fs && ctx->fs->io != ctx->journal_io) io_channel_close(ctx->journal_io); ctx->journal_io = 0; } #ifndef USE_INODE_IO if (journal->j_inode) ext2fs_free_mem(&journal->j_inode); #endif if (journal->j_fs_dev) ext2fs_free_mem(&journal->j_fs_dev); ext2fs_free_mem(&journal); }
static void ext2fs_journal_release(ext2_filsys fs, journal_t *journal, int reset, int drop) { journal_superblock_t *jsb; if (drop) mark_buffer_clean(journal->j_sb_buffer); else if (fs->flags & EXT2_FLAG_RW) { jsb = journal->j_superblock; jsb->s_sequence = htonl(journal->j_tail_sequence); if (reset) jsb->s_start = 0; /* this marks the journal as empty */ ext2fs_journal_sb_csum_set(journal, jsb); mark_buffer_dirty(journal->j_sb_buffer); } brelse(journal->j_sb_buffer); if (fs && fs->journal_io) { if (fs->io != fs->journal_io) io_channel_close(fs->journal_io); fs->journal_io = NULL; } #ifndef USE_INODE_IO if (journal->j_inode) ext2fs_free_mem(&journal->j_inode); #endif if (journal->j_fs_dev) ext2fs_free_mem(&journal->j_fs_dev); ext2fs_free_mem(&journal); }
errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io) { errcode_t err; if ((fs->flags & EXT2_FLAG_IMAGE_FILE) == 0) return EXT2_ET_NOT_IMAGE_FILE; err = io_channel_set_blksize(new_io, fs->blocksize); if (err) return err; if ((new_io == fs->image_io) || (new_io == fs->io)) return 0; if ((fs->image_io != fs->io) && fs->image_io) io_channel_close(fs->image_io); if (fs->io) io_channel_close(fs->io); fs->io = fs->image_io = new_io; fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_RW | EXT2_FLAG_BB_DIRTY | EXT2_FLAG_IB_DIRTY; fs->flags &= ~EXT2_FLAG_IMAGE_FILE; return 0; }
int main(int argc, char **argv) { struct sigaction act; io_handle_t serv1, serv2, serv3, servr, watcher; sdp_session_t *session; memset(&act, 0, sizeof(act)); act.sa_handler = sigint_handler; DIE_IF_ERR(storage_segregate(&storage, 12, 512)); DIE_IF_ERR(io_loop_init(&loop)); DIE_IF_ERR(io_file(&loop, &backup, "backup.txt", O_RDWR)); DIE_IF_ERR(io_inotify(&loop, &watcher)); DIE_IF_ERR(io_tcp_server(&loop, &serv1, "0.0.0.0", "3000")); DIE_IF_ERR(io_tcp_server(&loop, &serv2, "0.0.0.0", "4000")); DIE_IF_ERR(io_tcp_server(&loop, &serv3, "0.0.0.0", "5000")); DIE_IF_ERR(io_rfcomm_server(&loop, &servr, BDADDR_ANY, 4)); lseek(backup.fd, 0, SEEK_END); DIE_IF_ERR(io_watch_start(&watcher, "/dev", IN_CREATE | IN_DELETE, file_changed)); DIE_IF_ERR(io_channel(&channel)); DIE_IF_ERR(io_channel_join(&channel, &backup, backup_updated)); DIE_IF_ERR(io_channel_join(&channel, &tcp1, serl_updated)); if(try_serial(&loop, &serl) == -1) puts("warning: arduino not connected."); else DIE_IF_ERR(io_publish_start(&serl, &channel, data_published)); DIE_IF_ERR(io_listen_start(&serv1, new_tcp1_conn)); DIE_IF_ERR(io_listen_start(&serv2, new_tcp2_conn)); DIE_IF_ERR(io_listen_start(&serv3, new_tcp3_conn)); DIE_IF_ERR(io_listen_start(&servr, new_rfcm_conn)); session = io_rfcomm_advertise(4, name, desc, uuid128); DIE_IF_ERR(sigaction(SIGINT, &act, NULL)); puts("pi server is up..."); DIE_IF_ERR(io_loop_run(&loop)); io_channel_close(&channel); storage_collapse(&storage); io_rfcomm_unadvertise(session); return 0; }
static errcode_t test_close(io_channel channel) { struct test_private_data *data; errcode_t retval = 0; EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); data = (struct test_private_data *) channel->private_data; EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); if (--channel->refcount > 0) return 0; if (data->real) retval = io_channel_close(data->real); ext2fs_free_mem((void **) &channel->private_data); if (channel->name) ext2fs_free_mem((void **) &channel->name); ext2fs_free_mem((void **) &channel); return retval; }
/* * This function resets an e2fsck context; it is called when e2fsck * needs to be restarted. */ errcode_t e2fsck_reset_context(e2fsck_t ctx) { ctx->flags = 0; ctx->lost_and_found = 0; ctx->bad_lost_and_found = 0; if (ctx->inode_used_map) { ext2fs_free_inode_bitmap(ctx->inode_used_map); ctx->inode_used_map = 0; } if (ctx->inode_dir_map) { ext2fs_free_inode_bitmap(ctx->inode_dir_map); ctx->inode_dir_map = 0; } if (ctx->inode_reg_map) { ext2fs_free_inode_bitmap(ctx->inode_reg_map); ctx->inode_reg_map = 0; } if (ctx->block_found_map) { ext2fs_free_block_bitmap(ctx->block_found_map); ctx->block_found_map = 0; } if (ctx->inode_link_info) { ext2fs_free_icount(ctx->inode_link_info); ctx->inode_link_info = 0; } if (ctx->journal_io) { if (ctx->fs && ctx->fs->io != ctx->journal_io) io_channel_close(ctx->journal_io); ctx->journal_io = 0; } if (ctx->fs && ctx->fs->dblist) { ext2fs_free_dblist(ctx->fs->dblist); ctx->fs->dblist = 0; } e2fsck_free_dir_info(ctx); #ifdef ENABLE_HTREE e2fsck_free_dx_dir_info(ctx); #endif if (ctx->refcount) { ea_refcount_free(ctx->refcount); ctx->refcount = 0; } if (ctx->refcount_extra) { ea_refcount_free(ctx->refcount_extra); ctx->refcount_extra = 0; } if (ctx->block_dup_map) { ext2fs_free_block_bitmap(ctx->block_dup_map); ctx->block_dup_map = 0; } if (ctx->block_ea_map) { ext2fs_free_block_bitmap(ctx->block_ea_map); ctx->block_ea_map = 0; } if (ctx->inode_bb_map) { ext2fs_free_inode_bitmap(ctx->inode_bb_map); ctx->inode_bb_map = 0; } if (ctx->inode_bad_map) { ext2fs_free_inode_bitmap(ctx->inode_bad_map); ctx->inode_bad_map = 0; } if (ctx->inode_imagic_map) { ext2fs_free_inode_bitmap(ctx->inode_imagic_map); ctx->inode_imagic_map = 0; } if (ctx->dirs_to_hash) { ext2fs_u32_list_free(ctx->dirs_to_hash); ctx->dirs_to_hash = 0; } /* * Clear the array of invalid meta-data flags */ if (ctx->invalid_inode_bitmap_flag) { ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag); ctx->invalid_inode_bitmap_flag = 0; } if (ctx->invalid_block_bitmap_flag) { ext2fs_free_mem(&ctx->invalid_block_bitmap_flag); ctx->invalid_block_bitmap_flag = 0; } if (ctx->invalid_inode_table_flag) { ext2fs_free_mem(&ctx->invalid_inode_table_flag); ctx->invalid_inode_table_flag = 0; } /* Clear statistic counters */ ctx->fs_directory_count = 0; ctx->fs_regular_count = 0; ctx->fs_blockdev_count = 0; ctx->fs_chardev_count = 0; ctx->fs_links_count = 0; ctx->fs_symlinks_count = 0; ctx->fs_fast_symlinks_count = 0; ctx->fs_fifo_count = 0; ctx->fs_total_count = 0; ctx->fs_badblocks_count = 0; ctx->fs_sockets_count = 0; ctx->fs_ind_count = 0; ctx->fs_dind_count = 0; ctx->fs_tind_count = 0; ctx->fs_fragmented = 0; ctx->large_files = 0; /* Reset the superblock to the user's requested value */ ctx->superblock = ctx->use_superblock; return 0; }
int main(int argc, char *argv[]) { int c,force = 0; TDB_CONTEXT *tdb; TDB_DATA key, data; io_channel channel; errcode_t retval; int mount_flags; blk64_t blk_num; char *device_name, *tdb_file; io_manager manager = unix_io_manager; #ifdef ENABLE_NLS setlocale(LC_MESSAGES, ""); setlocale(LC_CTYPE, ""); bindtextdomain(NLS_CAT_NAME, LOCALEDIR); textdomain(NLS_CAT_NAME); #endif add_error_table(&et_ext2_error_table); prg_name = argv[0]; while((c = getopt(argc, argv, "f")) != EOF) { switch (c) { case 'f': force = 1; break; default: usage(prg_name); } } if (argc != optind+2) usage(prg_name); tdb_file = argv[optind]; device_name = argv[optind+1]; tdb = tdb_open(tdb_file, 0, 0, O_RDONLY, 0600); if (!tdb) { com_err(prg_name, errno, _("Failed tdb_open %s\n"), tdb_file); exit(1); } retval = ext2fs_check_if_mounted(device_name, &mount_flags); if (retval) { com_err(prg_name, retval, _("Error while determining whether " "%s is mounted.\n"), device_name); exit(1); } if (mount_flags & EXT2_MF_MOUNTED) { com_err(prg_name, retval, _("e2undo should only be run on " "unmounted file system\n")); exit(1); } retval = manager->open(device_name, IO_FLAG_EXCLUSIVE | IO_FLAG_RW, &channel); if (retval) { com_err(prg_name, retval, _("Failed to open %s\n"), device_name); exit(1); } if (!force && check_filesystem(tdb, channel)) { exit(1); } if (set_blk_size(tdb, channel)) { exit(1); } for (key = tdb_firstkey(tdb); key.dptr; key = tdb_nextkey(tdb, key)) { if (!strcmp((char *) key.dptr, (char *) mtime_key) || !strcmp((char *) key.dptr, (char *) uuid_key) || !strcmp((char *) key.dptr, (char *) blksize_key)) { continue; } data = tdb_fetch(tdb, key); if (!data.dptr) { com_err(prg_name, 0, _("Failed tdb_fetch %s\n"), tdb_errorstr(tdb)); exit(1); } blk_num = *(unsigned long *)key.dptr; printf(_("Replayed transaction of size %zd at location %llu\n"), data.dsize, blk_num); retval = io_channel_write_blk64(channel, blk_num, -data.dsize, data.dptr); if (retval == -1) { com_err(prg_name, retval, _("Failed write %s\n"), strerror(errno)); exit(1); } } io_channel_close(channel); tdb_close(tdb); return 0; }
blk64_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, const char *name, io_manager manager) { struct ext2_super_block *sb; io_channel io = NULL; void *buf = NULL; int blocksize; blk64_t superblock, ret_sb = 8193; if (fs && fs->super) { ret_sb = (fs->super->s_blocks_per_group + fs->super->s_first_data_block); if (ctx) { ctx->superblock = ret_sb; ctx->blocksize = fs->blocksize; } return ret_sb; } if (ctx) { if (ctx->blocksize) { ret_sb = ctx->blocksize * 8; if (ctx->blocksize == 1024) ret_sb++; ctx->superblock = ret_sb; return ret_sb; } ctx->superblock = ret_sb; ctx->blocksize = 1024; } if (!name || !manager) goto cleanup; if (manager->open(name, 0, &io) != 0) goto cleanup; if (ext2fs_get_mem(SUPERBLOCK_SIZE, &buf)) goto cleanup; sb = (struct ext2_super_block *) buf; for (blocksize = EXT2_MIN_BLOCK_SIZE; blocksize <= EXT2_MAX_BLOCK_SIZE ; blocksize *= 2) { superblock = blocksize*8; if (blocksize == 1024) superblock++; io_channel_set_blksize(io, blocksize); if (io_channel_read_blk64(io, superblock, -SUPERBLOCK_SIZE, buf)) continue; #ifdef WORDS_BIGENDIAN if (sb->s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC)) ext2fs_swap_super(sb); #endif if ((sb->s_magic == EXT2_SUPER_MAGIC) && (EXT2_BLOCK_SIZE(sb) == blocksize)) { ret_sb = superblock; if (ctx) { ctx->superblock = superblock; ctx->blocksize = blocksize; } break; } } cleanup: if (io) io_channel_close(io); if (buf) ext2fs_free_mem(&buf); return (ret_sb); }
/* * This function resets an e2fsck context; it is called when e2fsck * needs to be restarted. */ errcode_t e2fsck_reset_context(e2fsck_t ctx) { int i; ctx->flags &= E2F_RESET_FLAGS; ctx->lost_and_found = 0; ctx->bad_lost_and_found = 0; if (ctx->inode_used_map) { ext2fs_free_inode_bitmap(ctx->inode_used_map); ctx->inode_used_map = 0; } if (ctx->inode_dir_map) { ext2fs_free_inode_bitmap(ctx->inode_dir_map); ctx->inode_dir_map = 0; } if (ctx->inode_reg_map) { ext2fs_free_inode_bitmap(ctx->inode_reg_map); ctx->inode_reg_map = 0; } if (ctx->block_found_map) { ext2fs_free_block_bitmap(ctx->block_found_map); ctx->block_found_map = 0; } if (ctx->inode_link_info) { ext2fs_free_icount(ctx->inode_link_info); ctx->inode_link_info = 0; } if (ctx->journal_io) { if (ctx->fs && ctx->fs->io != ctx->journal_io) io_channel_close(ctx->journal_io); ctx->journal_io = 0; } if (ctx->fs && ctx->fs->dblist) { ext2fs_free_dblist(ctx->fs->dblist); ctx->fs->dblist = 0; } e2fsck_free_dir_info(ctx); e2fsck_free_dx_dir_info(ctx); if (ctx->refcount) { ea_refcount_free(ctx->refcount); ctx->refcount = 0; } if (ctx->refcount_extra) { ea_refcount_free(ctx->refcount_extra); ctx->refcount_extra = 0; } if (ctx->block_dup_map) { ext2fs_free_block_bitmap(ctx->block_dup_map); ctx->block_dup_map = 0; } if (ctx->block_ea_map) { ext2fs_free_block_bitmap(ctx->block_ea_map); ctx->block_ea_map = 0; } if (ctx->block_metadata_map) { ext2fs_free_block_bitmap(ctx->block_metadata_map); ctx->block_metadata_map = 0; } if (ctx->inode_bb_map) { ext2fs_free_inode_bitmap(ctx->inode_bb_map); ctx->inode_bb_map = 0; } if (ctx->inode_bad_map) { ext2fs_free_inode_bitmap(ctx->inode_bad_map); ctx->inode_bad_map = 0; } if (ctx->inode_imagic_map) { ext2fs_free_inode_bitmap(ctx->inode_imagic_map); ctx->inode_imagic_map = 0; } if (ctx->dirs_to_hash) { ext2fs_u32_list_free(ctx->dirs_to_hash); ctx->dirs_to_hash = 0; } /* * Clear the array of invalid meta-data flags */ if (ctx->invalid_inode_bitmap_flag) { ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag); ctx->invalid_inode_bitmap_flag = 0; } if (ctx->invalid_block_bitmap_flag) { ext2fs_free_mem(&ctx->invalid_block_bitmap_flag); ctx->invalid_block_bitmap_flag = 0; } if (ctx->invalid_inode_table_flag) { ext2fs_free_mem(&ctx->invalid_inode_table_flag); ctx->invalid_inode_table_flag = 0; } if (ctx->encrypted_dirs) { ext2fs_u32_list_free(ctx->encrypted_dirs); ctx->encrypted_dirs = 0; } if (ctx->inode_count) { ext2fs_free_icount(ctx->inode_count); ctx->inode_count = 0; } /* Clear statistic counters */ ctx->fs_directory_count = 0; ctx->fs_regular_count = 0; ctx->fs_blockdev_count = 0; ctx->fs_chardev_count = 0; ctx->fs_links_count = 0; ctx->fs_symlinks_count = 0; ctx->fs_fast_symlinks_count = 0; ctx->fs_fifo_count = 0; ctx->fs_total_count = 0; ctx->fs_badblocks_count = 0; ctx->fs_sockets_count = 0; ctx->fs_ind_count = 0; ctx->fs_dind_count = 0; ctx->fs_tind_count = 0; ctx->fs_fragmented = 0; ctx->fs_fragmented_dir = 0; ctx->large_files = 0; for (i=0; i < MAX_EXTENT_DEPTH_COUNT; i++) ctx->extent_depth_count[i] = 0; /* Reset the superblock to the user's requested value */ ctx->superblock = ctx->use_superblock; return 0; }
int main(int argc, char *argv[]) { int c, force = 0, dry_run = 0, verbose = 0, dump = 0; io_channel channel; errcode_t retval; int mount_flags, csum_error = 0, io_error = 0; size_t i, keys_per_block; char *device_name, *tdb_file; io_manager manager = unix_io_manager; struct undo_context undo_ctx; char *buf; struct undo_key_block *keyb; struct undo_key *dkey; struct undo_key_info *ikey; __u32 key_crc, blk_crc, hdr_crc; blk64_t lblk; ext2_filsys fs; __u64 offset = 0; char opt_offset_string[40] = { 0 }; #ifdef ENABLE_NLS setlocale(LC_MESSAGES, ""); setlocale(LC_CTYPE, ""); bindtextdomain(NLS_CAT_NAME, LOCALEDIR); textdomain(NLS_CAT_NAME); set_com_err_gettext(gettext); #endif add_error_table(&et_ext2_error_table); prg_name = argv[0]; while ((c = getopt(argc, argv, "fhno:vz:")) != EOF) { switch (c) { case 'f': force = 1; break; case 'h': dump = 1; break; case 'n': dry_run = 1; break; case 'o': offset = strtoull(optarg, &buf, 0); if (*buf) { com_err(prg_name, 0, _("illegal offset - %s"), optarg); exit(1); } /* used to indicate that an offset was specified */ opt_offset_string[0] = 1; break; case 'v': verbose = 1; break; case 'z': undo_file = optarg; break; default: usage(); } } if (argc != optind + 2) usage(); tdb_file = argv[optind]; device_name = argv[optind+1]; if (undo_file && strcmp(tdb_file, undo_file) == 0) { printf(_("Will not write to an undo file while replaying it.\n")); exit(1); } /* Interpret the undo file */ retval = manager->open(tdb_file, IO_FLAG_EXCLUSIVE, &undo_ctx.undo_file); if (retval) { com_err(prg_name, errno, _("while opening undo file `%s'\n"), tdb_file); exit(1); } retval = io_channel_read_blk64(undo_ctx.undo_file, 0, -(int)sizeof(undo_ctx.hdr), &undo_ctx.hdr); if (retval) { com_err(prg_name, retval, _("while reading undo file")); exit(1); } if (memcmp(undo_ctx.hdr.magic, E2UNDO_MAGIC, sizeof(undo_ctx.hdr.magic))) { fprintf(stderr, _("%s: Not an undo file.\n"), tdb_file); exit(1); } if (dump) { dump_header(&undo_ctx.hdr); exit(1); } hdr_crc = ext2fs_crc32c_le(~0, (unsigned char *)&undo_ctx.hdr, sizeof(struct undo_header) - sizeof(__u32)); if (!force && ext2fs_le32_to_cpu(undo_ctx.hdr.header_crc) != hdr_crc) { fprintf(stderr, _("%s: Header checksum doesn't match.\n"), tdb_file); exit(1); } undo_ctx.blocksize = ext2fs_le32_to_cpu(undo_ctx.hdr.block_size); undo_ctx.fs_blocksize = ext2fs_le32_to_cpu(undo_ctx.hdr.fs_block_size); if (undo_ctx.blocksize == 0 || undo_ctx.fs_blocksize == 0) { fprintf(stderr, _("%s: Corrupt undo file header.\n"), tdb_file); exit(1); } if (!force && undo_ctx.blocksize > E2UNDO_MAX_BLOCK_SIZE) { fprintf(stderr, _("%s: Undo block size too large.\n"), tdb_file); exit(1); } if (!force && undo_ctx.blocksize < E2UNDO_MIN_BLOCK_SIZE) { fprintf(stderr, _("%s: Undo block size too small.\n"), tdb_file); exit(1); } undo_ctx.super_block = ext2fs_le64_to_cpu(undo_ctx.hdr.super_offset); undo_ctx.num_keys = ext2fs_le64_to_cpu(undo_ctx.hdr.num_keys); io_channel_set_blksize(undo_ctx.undo_file, undo_ctx.blocksize); /* * Do not compare undo_ctx.hdr.f_compat with the available compatible * features set, because a "missing" compatible feature should * not cause any problems. */ if (!force && (undo_ctx.hdr.f_incompat || undo_ctx.hdr.f_rocompat)) { fprintf(stderr, _("%s: Unknown undo file feature set.\n"), tdb_file); exit(1); } /* open the fs */ retval = ext2fs_check_if_mounted(device_name, &mount_flags); if (retval) { com_err(prg_name, retval, _("Error while determining whether " "%s is mounted."), device_name); exit(1); } if (mount_flags & EXT2_MF_MOUNTED) { com_err(prg_name, retval, "%s", _("e2undo should only be run " "on unmounted filesystems")); exit(1); } if (undo_file) { retval = e2undo_setup_tdb(device_name, &manager); if (retval) exit(1); } retval = manager->open(device_name, IO_FLAG_EXCLUSIVE | (dry_run ? 0 : IO_FLAG_RW), &channel); if (retval) { com_err(prg_name, retval, _("while opening `%s'"), device_name); exit(1); } if (*opt_offset_string || e2undo_has_feature_fs_offset(&undo_ctx.hdr)) { if (!*opt_offset_string) offset = ext2fs_le64_to_cpu(undo_ctx.hdr.fs_offset); retval = snprintf(opt_offset_string, sizeof(opt_offset_string), "offset=%llu", offset); if ((size_t) retval >= sizeof(opt_offset_string)) { /* should not happen... */ com_err(prg_name, 0, _("specified offset is too large")); exit(1); } io_channel_set_options(channel, opt_offset_string); } if (!force && check_filesystem(&undo_ctx, channel)) exit(1); /* prepare to read keys */ retval = ext2fs_get_mem(sizeof(struct undo_key_info) * undo_ctx.num_keys, &undo_ctx.keys); if (retval) { com_err(prg_name, retval, "%s", _("while allocating memory")); exit(1); } ikey = undo_ctx.keys; retval = ext2fs_get_mem(undo_ctx.blocksize, &keyb); if (retval) { com_err(prg_name, retval, "%s", _("while allocating memory")); exit(1); } retval = ext2fs_get_mem(E2UNDO_MAX_EXTENT_BLOCKS * undo_ctx.blocksize, &buf); if (retval) { com_err(prg_name, retval, "%s", _("while allocating memory")); exit(1); } /* load keys */ keys_per_block = KEYS_PER_BLOCK(&undo_ctx); lblk = ext2fs_le64_to_cpu(undo_ctx.hdr.key_offset); dbg_printf("nr_keys=%lu, kpb=%zu, blksz=%u\n", undo_ctx.num_keys, keys_per_block, undo_ctx.blocksize); for (i = 0; i < undo_ctx.num_keys; i += keys_per_block) { size_t j, max_j; __le32 crc; retval = io_channel_read_blk64(undo_ctx.undo_file, lblk, 1, keyb); if (retval) { com_err(prg_name, retval, "%s", _("while reading keys")); if (force) { io_error = 1; undo_ctx.num_keys = i - 1; break; } exit(1); } /* check keys */ if (!force && ext2fs_le32_to_cpu(keyb->magic) != KEYBLOCK_MAGIC) { fprintf(stderr, _("%s: wrong key magic at %llu\n"), tdb_file, lblk); exit(1); } crc = keyb->crc; keyb->crc = 0; key_crc = ext2fs_crc32c_le(~0, (unsigned char *)keyb, undo_ctx.blocksize); if (!force && ext2fs_le32_to_cpu(crc) != key_crc) { fprintf(stderr, _("%s: key block checksum error at %llu.\n"), tdb_file, lblk); exit(1); } /* load keys from key block */ lblk++; max_j = undo_ctx.num_keys - i; if (max_j > keys_per_block) max_j = keys_per_block; for (j = 0, dkey = keyb->keys; j < max_j; j++, ikey++, dkey++) { ikey->fsblk = ext2fs_le64_to_cpu(dkey->fsblk); ikey->fileblk = lblk; ikey->blk_crc = ext2fs_le32_to_cpu(dkey->blk_crc); ikey->size = ext2fs_le32_to_cpu(dkey->size); lblk += (ikey->size + undo_ctx.blocksize - 1) / undo_ctx.blocksize; if (E2UNDO_MAX_EXTENT_BLOCKS * undo_ctx.blocksize < ikey->size) { com_err(prg_name, retval, _("%s: block %llu is too long."), tdb_file, ikey->fsblk); exit(1); } /* check each block's crc */ retval = io_channel_read_blk64(undo_ctx.undo_file, ikey->fileblk, -(int)ikey->size, buf); if (retval) { com_err(prg_name, retval, _("while fetching block %llu."), ikey->fileblk); if (!force) exit(1); io_error = 1; continue; } blk_crc = ext2fs_crc32c_le(~0, (unsigned char *)buf, ikey->size); if (blk_crc != ikey->blk_crc) { fprintf(stderr, _("checksum error in filesystem block " "%llu (undo blk %llu)\n"), ikey->fsblk, ikey->fileblk); if (!force) exit(1); csum_error = 1; } } } ext2fs_free_mem(&keyb); /* sort keys in fs block order */ qsort(undo_ctx.keys, undo_ctx.num_keys, sizeof(struct undo_key_info), key_compare); /* replay */ io_channel_set_blksize(channel, undo_ctx.fs_blocksize); for (i = 0, ikey = undo_ctx.keys; i < undo_ctx.num_keys; i++, ikey++) { retval = io_channel_read_blk64(undo_ctx.undo_file, ikey->fileblk, -(int)ikey->size, buf); if (retval) { com_err(prg_name, retval, _("while fetching block %llu."), ikey->fileblk); io_error = 1; continue; } if (verbose) printf("Replayed block of size %u from %llu to %llu\n", ikey->size, ikey->fileblk, ikey->fsblk); if (dry_run) continue; retval = io_channel_write_blk64(channel, ikey->fsblk, -(int)ikey->size, buf); if (retval) { com_err(prg_name, retval, _("while writing block %llu."), ikey->fsblk); io_error = 1; } } if (csum_error) fprintf(stderr, _("Undo file corruption; run e2fsck NOW!\n")); if (io_error) fprintf(stderr, _("IO error during replay; run e2fsck NOW!\n")); if (!(ext2fs_le32_to_cpu(undo_ctx.hdr.state) & E2UNDO_STATE_FINISHED)) { force = 1; fprintf(stderr, _("Incomplete undo record; run e2fsck.\n")); } ext2fs_free_mem(&buf); ext2fs_free_mem(&undo_ctx.keys); io_channel_close(channel); /* If there were problems, try to force a fsck */ if (!dry_run && (force || csum_error || io_error)) { retval = ext2fs_open2(device_name, NULL, EXT2_FLAG_RW | EXT2_FLAG_64BITS, 0, 0, manager, &fs); if (retval) goto out; fs->super->s_state &= ~EXT2_VALID_FS; if (csum_error || io_error) fs->super->s_state |= EXT2_ERROR_FS; ext2fs_mark_super_dirty(fs); ext2fs_close_free(&fs); } out: io_channel_close(undo_ctx.undo_file); return csum_error; }