/* * Reads the current bad blocks from the bad blocks inode. */ errcode_t ext2fs_read_bb_inode(ext2_filsys fs, ext2_badblocks_list *bb_list) { errcode_t retval; struct read_bb_record rb; struct ext2_inode inode; blk_t numblocks; EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); if (!*bb_list) { retval = ext2fs_read_inode(fs, EXT2_BAD_INO, &inode); if (retval) return retval; if (inode.i_blocks < 500) numblocks = (inode.i_blocks / (fs->blocksize / 512)) + 20; else numblocks = 500; retval = ext2fs_badblocks_list_create(bb_list, numblocks); if (retval) return retval; } rb.bb_list = *bb_list; rb.err = 0; retval = ext2fs_block_iterate2(fs, EXT2_BAD_INO, 0, 0, mark_bad_block, &rb); if (retval) return retval; return rb.err; }
/* * Reads a list of bad blocks from a FILE * */ errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f, ext2_badblocks_list *bb_list, void *priv_data, void (*invalid)(ext2_filsys fs, blk_t blk, char *badstr, void *priv_data)) { errcode_t retval; blk_t blockno; int count; char buf[128]; if (fs) EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); if (!*bb_list) { retval = ext2fs_badblocks_list_create(bb_list, 10); if (retval) return retval; } while (!feof (f)) { if (fgets(buf, sizeof(buf), f) == NULL) break; count = sscanf(buf, "%u", &blockno); if (count <= 0) continue; if (fs && ((blockno < fs->super->s_first_data_block) || (blockno >= ext2fs_blocks_count(fs->super)))) { if (invalid) (invalid)(fs, blockno, buf, priv_data); continue; } retval = ext2fs_badblocks_list_add(*bb_list, blockno); if (retval) return retval; } return 0; }
static errcode_t create_test_list(blk_t *vec, badblocks_list *ret) { errcode_t retval; badblocks_list bb; int i; retval = ext2fs_badblocks_list_create(&bb, 5); if (retval) { com_err("create_test_list", retval, "while creating list"); return retval; } for (i=0; vec[i]; i++) { retval = ext2fs_badblocks_list_add(bb, vec[i]); if (retval) { com_err("create_test_list", retval, "while adding test vector %d", i); ext2fs_badblocks_list_free(bb); return retval; } } *ret = bb; return 0; }
/* * Reads the current bad blocks from the bad blocks inode. */ errcode_t ext2fs_read_bb_inode(ext2_filsys fs, ext2_badblocks_list *bb_list) { errcode_t retval; struct read_bb_record rb; struct ext2_inode inode; blk_t numblocks; EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); if (!*bb_list) { retval = ext2fs_read_inode(fs, EXT2_BAD_INO, &inode); if (retval) return retval; numblocks = inode.i_blocks; if (!((fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_HUGE_FILE) && (inode.i_flags & EXT4_HUGE_FILE_FL))) numblocks = numblocks / (fs->blocksize / 512); numblocks += 20; if (numblocks < 50) numblocks = 50; if (numblocks > 50000) numblocks = 500; retval = ext2fs_badblocks_list_create(bb_list, numblocks); if (retval) return retval; } rb.bb_list = *bb_list; rb.err = 0; retval = ext2fs_block_iterate2(fs, EXT2_BAD_INO, BLOCK_FLAG_READ_ONLY, 0, mark_bad_block, &rb); if (retval) return retval; return rb.err; }
errcode_t badblocks_list_create(badblocks_list *ret, int size) { return ext2fs_badblocks_list_create(ret, size); }
/* * Setup the variables for doing the inode scan test. */ static void setup(void) { errcode_t retval; int i; struct ext2_super_block param; initialize_ext2_error_table(); memset(¶m, 0, sizeof(param)); param.s_blocks_count = 12000; test_io_cb_read_blk = test_read_blk; retval = ext2fs_initialize("test fs", 0, ¶m, test_io_manager, &test_fs); if (retval) { com_err("setup", retval, "While initializing filesystem"); exit(1); } retval = ext2fs_allocate_tables(test_fs); if (retval) { com_err("setup", retval, "While allocating tables for test filesystem"); exit(1); } retval = ext2fs_allocate_block_bitmap(test_fs, "bad block map", &bad_block_map); if (retval) { com_err("setup", retval, "While allocating bad_block bitmap"); exit(1); } retval = ext2fs_allocate_block_bitmap(test_fs, "touched map", &touched_map); if (retval) { com_err("setup", retval, "While allocating touched block bitmap"); exit(1); } retval = ext2fs_allocate_inode_bitmap(test_fs, "bad inode map", &bad_inode_map); if (retval) { com_err("setup", retval, "While allocating bad inode bitmap"); exit(1); } retval = ext2fs_badblocks_list_create(&test_badblocks, 5); if (retval) { com_err("setup", retval, "while creating badblocks list"); exit(1); } for (i=0; test_vec[i]; i++) { retval = ext2fs_badblocks_list_add(test_badblocks, test_vec[i]); if (retval) { com_err("setup", retval, "while adding test vector %d", i); exit(1); } ext2fs_mark_block_bitmap(bad_block_map, test_vec[i]); } test_fs->badblocks = test_badblocks; }