1a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o/* 2a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o * This testing program makes sure superblock size is 1024 bytes long 3a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o * 4a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o * Copyright (C) 2007 by Theodore Ts'o. 5efc6f628e15de95bcd13e4f0ee223cb42115d520Theodore Ts'o * 6a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o * %Begin-Header% 7543547a52a20cb7e69d74921b2f691078fd55d83Theodore Ts'o * This file may be redistributed under the terms of the GNU Library 8543547a52a20cb7e69d74921b2f691078fd55d83Theodore Ts'o * General Public License, version 2. 9a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o * %End-Header% 10a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o */ 11a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o 12a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o#include <stdio.h> 13a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o#include <unistd.h> 14a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o#include <stdlib.h> 15a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o 16a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o#include "ext2_fs.h" 17a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o 18c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o#define sb_struct ext2_super_block 19c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o#define sb_struct_name "ext2_super_block" 20c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o 21c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'ostruct sb_struct sb; 22c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o 23e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall#ifndef offsetof 2465f0aab98b20b5994a726ab90d355248bcddfffdJP Abgrall#define offsetof(type, member) __builtin_offsetof (type, member) 25e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall#endif 26c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o 27e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall#define check_field(x, s) cur_offset = do_field(#x, s, sizeof(sb.x), \ 28e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall offsetof(struct sb_struct, x), \ 29e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall cur_offset) 30e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall 31e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrallstatic int do_field(const char *field, unsigned size, unsigned cur_size, 32e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall unsigned offset, unsigned cur_offset) 33c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o{ 34e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall if (size != cur_size) { 35e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall printf("error: %s size %u should be %u\n", 36e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall field, cur_size, size); 37e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall exit(1); 38e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall } 39c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o if (offset != cur_offset) { 40e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall printf("error: %s offset %u should be %u\n", 41e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall field, cur_offset, offset); 42c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o exit(1); 43c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o } 44e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall printf("%8d %-30s %3u\n", offset, field, size); 45c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o return offset + size; 46c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o} 47c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o 48e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrallint main(int argc, char **argv) 49c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o{ 50c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o#if (__GNUC__ >= 4) 51c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o int cur_offset = 0; 52c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o 53c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o printf("%8s %-30s %3s\n", "offset", "field", "size"); 54e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_inodes_count, 4); 55e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_blocks_count, 4); 56e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_r_blocks_count, 4); 57e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_free_blocks_count, 4); 58e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_free_inodes_count, 4); 59e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_data_block, 4); 60e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_log_block_size, 4); 61e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_log_cluster_size, 4); 62e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_blocks_per_group, 4); 63e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_clusters_per_group, 4); 64e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_inodes_per_group, 4); 65e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_mtime, 4); 66e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_wtime, 4); 67e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_mnt_count, 2); 68e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_max_mnt_count, 2); 69e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_magic, 2); 70e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_state, 2); 71e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_errors, 2); 72e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_minor_rev_level, 2); 73e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_lastcheck, 4); 74e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_checkinterval, 4); 75e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_creator_os, 4); 76e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_rev_level, 4); 77e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_def_resuid, 2); 78e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_def_resgid, 2); 79e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_ino, 4); 80e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_inode_size, 2); 81e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_block_group_nr, 2); 82e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_feature_compat, 4); 83e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_feature_incompat, 4); 84e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_feature_ro_compat, 4); 85e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_uuid, 16); 86e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_volume_name, 16); 87e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_last_mounted, 64); 88e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_algorithm_usage_bitmap, 4); 89e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_prealloc_blocks, 1); 90e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_prealloc_dir_blocks, 1); 91e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_reserved_gdt_blocks, 2); 92e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_journal_uuid, 16); 93e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_journal_inum, 4); 94e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_journal_dev, 4); 95e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_last_orphan, 4); 96e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_hash_seed, 4 * 4); 97e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_def_hash_version, 1); 98e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_jnl_backup_type, 1); 99e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_desc_size, 2); 100e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_default_mount_opts, 4); 101e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_meta_bg, 4); 102e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_mkfs_time, 4); 103e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_jnl_blocks, 17 * 4); 104e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_blocks_count_hi, 4); 105e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_r_blocks_count_hi, 4); 106e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_free_blocks_hi, 4); 107e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_min_extra_isize, 2); 108e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_want_extra_isize, 2); 109e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_flags, 4); 110e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_raid_stride, 2); 111e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_mmp_update_interval, 2); 112e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_mmp_block, 8); 113e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_raid_stripe_width, 4); 114e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_log_groups_per_flex, 1); 115890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_checksum_type, 1); 116890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_encryption_level, 1); 117890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_reserved_pad, 1); 118e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_kbytes_written, 8); 119e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_snapshot_inum, 4); 120e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_snapshot_id, 4); 121e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_snapshot_r_blocks_count, 8); 122e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_snapshot_list, 4); 123e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_error_count, 4); 124e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_error_time, 4); 125e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_error_ino, 4); 126e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_error_block, 8); 127e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_error_func, 32); 128e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_first_error_line, 4); 129e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_last_error_time, 4); 130e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_last_error_ino, 4); 131e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_last_error_line, 4); 132e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_last_error_block, 8); 133e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_last_error_func, 32); 134e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_mount_opts, 64); 135e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_usr_quota_inum, 4); 136e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_grp_quota_inum, 4); 137e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_overhead_blocks, 4); 138890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_backup_bgs, 8); 139890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_encrypt_algos, 4); 140890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_encrypt_pw_salt, 16); 141890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_lpf_ino, 4); 142890a2f99ce6d2f456fc04f4f72205527f556ee55Theodore Ts'o check_field(s_reserved, 100 * 4); 143e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall check_field(s_checksum, 4); 144e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall do_field("Superblock end", 0, 0, cur_offset, 1024); 145c5726f1ad7efedcdb24b3b362c84f0d0b402b337Theodore Ts'o#endif 146e0ed7404719a9ddd2ba427a80db5365c8bad18c0JP Abgrall return 0; 147a2b2ff61c88ac7583f288a1723d8195a0b7f2f83Theodore Ts'o} 148