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Commit | Line | Data |
---|---|---|
c6bd0c97 | 1 | /* |
7dec050a | 2 | * set_fields.c --- set a superblock value |
efc6f628 | 3 | * |
7dec050a | 4 | * Copyright (C) 2000, 2001, 2002, 2003, 2004 by Theodore Ts'o. |
efc6f628 | 5 | * |
7dec050a TT |
6 | * %Begin-Header% |
7 | * This file may be redistributed under the terms of the GNU Public | |
8 | * License. | |
9 | * %End-Header% | |
c6bd0c97 TT |
10 | */ |
11 | ||
007df860 TT |
12 | #define _XOPEN_SOURCE 600 /* for inclusion of strptime() and strtoull */ |
13 | ||
14 | #ifdef HAVE_STRTOULL | |
15 | #define STRTOULL strtoull | |
16 | #else | |
17 | #define STRTOULL strtoul | |
18 | #endif | |
619a8ea7 | 19 | |
d1154eb4 | 20 | #include "config.h" |
c6bd0c97 TT |
21 | #include <stdio.h> |
22 | #include <unistd.h> | |
23 | #include <stdlib.h> | |
24 | #include <ctype.h> | |
25 | #include <string.h> | |
8192c633 | 26 | #include <strings.h> |
c6bd0c97 TT |
27 | #include <time.h> |
28 | #include <sys/types.h> | |
29 | #include <sys/stat.h> | |
30 | #ifdef HAVE_ERRNO_H | |
31 | #include <errno.h> | |
32 | #endif | |
f7e37e8b | 33 | #include <assert.h> |
a98b51e9 TT |
34 | #if HAVE_STRINGS_H |
35 | #include <strings.h> | |
36 | #endif | |
c6bd0c97 TT |
37 | #include <fcntl.h> |
38 | #include <utime.h> | |
39 | ||
40 | #include "debugfs.h" | |
3e699064 TT |
41 | #include "uuid/uuid.h" |
42 | #include "e2p/e2p.h" | |
2d2d799c | 43 | #include "support/quotaio.h" |
c6bd0c97 TT |
44 | |
45 | static struct ext2_super_block set_sb; | |
16c581d0 | 46 | static struct ext2_inode_large set_inode; |
c7c1209e | 47 | static struct ext2_group_desc set_gd; |
16c581d0 | 48 | static struct ext4_group_desc set_gd4; |
3cebf9c1 | 49 | static struct mmp_struct set_mmp; |
cf96ecf1 | 50 | static dgrp_t set_bg; |
08fd3f36 TT |
51 | static ext2_ino_t set_ino; |
52 | static int array_idx; | |
53 | ||
54 | #define FLAG_ARRAY 0x0001 | |
f7e37e8b | 55 | #define FLAG_ALIAS 0x0002 /* Data intersects with other field */ |
32917350 | 56 | #define FLAG_CSUM 0x0004 |
c6bd0c97 | 57 | |
7dec050a | 58 | struct field_set_info { |
b044c2e0 | 59 | const char *name; |
c6bd0c97 | 60 | void *ptr; |
16c581d0 | 61 | void *ptr2; |
54434927 | 62 | unsigned int size; |
16c581d0 | 63 | errcode_t (*func)(struct field_set_info *info, char *field, char *arg); |
08fd3f36 TT |
64 | int flags; |
65 | int max_idx; | |
c6bd0c97 TT |
66 | }; |
67 | ||
16c581d0 TT |
68 | static errcode_t parse_uint(struct field_set_info *info, char *field, char *arg); |
69 | static errcode_t parse_int(struct field_set_info *info, char *field, char *arg); | |
70 | static errcode_t parse_string(struct field_set_info *info, char *field, char *arg); | |
71 | static errcode_t parse_uuid(struct field_set_info *info, char *field, char *arg); | |
72 | static errcode_t parse_hashalg(struct field_set_info *info, char *field, char *arg); | |
cc8df47c | 73 | static errcode_t parse_encoding(struct field_set_info *info, char *field, char *arg); |
9103e1e7 TT |
74 | static errcode_t parse_sb_time(struct field_set_info *info, char *field, char *arg); |
75 | static errcode_t parse_ino_time(struct field_set_info *info, char *field, char *arg); | |
76 | ||
16c581d0 TT |
77 | static errcode_t parse_bmap(struct field_set_info *info, char *field, char *arg); |
78 | static errcode_t parse_gd_csum(struct field_set_info *info, char *field, char *arg); | |
32917350 TT |
79 | static errcode_t parse_inode_csum(struct field_set_info *info, char *field, |
80 | char *arg); | |
3cebf9c1 TT |
81 | static errcode_t parse_mmp_clear(struct field_set_info *info, char *field, |
82 | char *arg); | |
c6bd0c97 | 83 | |
c4ef5b4f | 84 | #if __GNUC_PREREQ (4, 6) || defined(__clang__) |
12aa7ad5 TT |
85 | #pragma GCC diagnostic push |
86 | #pragma GCC diagnostic ignored "-Wmissing-field-initializers" | |
fddc423d | 87 | #endif |
12aa7ad5 | 88 | |
7dec050a | 89 | static struct field_set_info super_fields[] = { |
16c581d0 TT |
90 | { "inodes_count", &set_sb.s_inodes_count, NULL, 4, parse_uint }, |
91 | { "blocks_count", &set_sb.s_blocks_count, &set_sb.s_blocks_count_hi, | |
92 | 4, parse_uint }, | |
93 | { "r_blocks_count", &set_sb.s_r_blocks_count, | |
94 | &set_sb.s_r_blocks_count_hi, 4, parse_uint }, | |
95 | { "free_blocks_count", &set_sb.s_free_blocks_count, | |
96 | &set_sb.s_free_blocks_hi, 4, parse_uint }, | |
97 | { "free_inodes_count", &set_sb.s_free_inodes_count, NULL, 4, parse_uint }, | |
98 | { "first_data_block", &set_sb.s_first_data_block, NULL, 4, parse_uint }, | |
99 | { "log_block_size", &set_sb.s_log_block_size, NULL, 4, parse_uint }, | |
100 | { "log_cluster_size", &set_sb.s_log_cluster_size, NULL, 4, parse_int }, | |
101 | { "blocks_per_group", &set_sb.s_blocks_per_group, NULL, 4, parse_uint }, | |
102 | { "clusters_per_group", &set_sb.s_clusters_per_group, NULL, 4, parse_uint }, | |
103 | { "inodes_per_group", &set_sb.s_inodes_per_group, NULL, 4, parse_uint }, | |
9103e1e7 TT |
104 | { "mtime", &set_sb.s_mtime, &set_sb.s_mtime_hi, 5, parse_sb_time }, |
105 | { "wtime", &set_sb.s_wtime, &set_sb.s_wtime_hi, 5, parse_sb_time }, | |
16c581d0 TT |
106 | { "mnt_count", &set_sb.s_mnt_count, NULL, 2, parse_uint }, |
107 | { "max_mnt_count", &set_sb.s_max_mnt_count, NULL, 2, parse_int }, | |
c6bd0c97 | 108 | /* s_magic */ |
16c581d0 TT |
109 | { "state", &set_sb.s_state, NULL, 2, parse_uint }, |
110 | { "errors", &set_sb.s_errors, NULL, 2, parse_uint }, | |
111 | { "minor_rev_level", &set_sb.s_minor_rev_level, NULL, 2, parse_uint }, | |
ca8bc924 | 112 | { "lastcheck", &set_sb.s_lastcheck, &set_sb.s_lastcheck_hi, 5, |
9103e1e7 | 113 | parse_sb_time }, |
16c581d0 TT |
114 | { "checkinterval", &set_sb.s_checkinterval, NULL, 4, parse_uint }, |
115 | { "creator_os", &set_sb.s_creator_os, NULL, 4, parse_uint }, | |
116 | { "rev_level", &set_sb.s_rev_level, NULL, 4, parse_uint }, | |
117 | { "def_resuid", &set_sb.s_def_resuid, NULL, 2, parse_uint }, | |
118 | { "def_resgid", &set_sb.s_def_resgid, NULL, 2, parse_uint }, | |
119 | { "first_ino", &set_sb.s_first_ino, NULL, 4, parse_uint }, | |
120 | { "inode_size", &set_sb.s_inode_size, NULL, 2, parse_uint }, | |
121 | { "block_group_nr", &set_sb.s_block_group_nr, NULL, 2, parse_uint }, | |
122 | { "feature_compat", &set_sb.s_feature_compat, NULL, 4, parse_uint }, | |
123 | { "feature_incompat", &set_sb.s_feature_incompat, NULL, 4, parse_uint }, | |
124 | { "feature_ro_compat", &set_sb.s_feature_ro_compat, NULL, 4, parse_uint }, | |
125 | { "uuid", &set_sb.s_uuid, NULL, 16, parse_uuid }, | |
126 | { "volume_name", &set_sb.s_volume_name, NULL, 16, parse_string }, | |
127 | { "last_mounted", &set_sb.s_last_mounted, NULL, 64, parse_string }, | |
16c581d0 | 128 | { "algorithm_usage_bitmap", &set_sb.s_algorithm_usage_bitmap, NULL, |
c6bd0c97 | 129 | 4, parse_uint }, |
16c581d0 TT |
130 | { "prealloc_blocks", &set_sb.s_prealloc_blocks, NULL, 1, parse_uint }, |
131 | { "prealloc_dir_blocks", &set_sb.s_prealloc_dir_blocks, NULL, 1, | |
c6bd0c97 | 132 | parse_uint }, |
16c581d0 | 133 | { "reserved_gdt_blocks", &set_sb.s_reserved_gdt_blocks, NULL, 2, |
a06bd026 | 134 | parse_uint }, |
16c581d0 TT |
135 | { "journal_uuid", &set_sb.s_journal_uuid, NULL, 16, parse_uuid }, |
136 | { "journal_inum", &set_sb.s_journal_inum, NULL, 4, parse_uint }, | |
137 | { "journal_dev", &set_sb.s_journal_dev, NULL, 4, parse_uint }, | |
138 | { "last_orphan", &set_sb.s_last_orphan, NULL, 4, parse_uint }, | |
139 | { "hash_seed", &set_sb.s_hash_seed, NULL, 16, parse_uuid }, | |
140 | { "def_hash_version", &set_sb.s_def_hash_version, NULL, 1, parse_hashalg }, | |
141 | { "jnl_backup_type", &set_sb.s_jnl_backup_type, NULL, 1, parse_uint }, | |
142 | { "desc_size", &set_sb.s_desc_size, NULL, 2, parse_uint }, | |
143 | { "default_mount_opts", &set_sb.s_default_mount_opts, NULL, 4, parse_uint }, | |
144 | { "first_meta_bg", &set_sb.s_first_meta_bg, NULL, 4, parse_uint }, | |
ca8bc924 | 145 | { "mkfs_time", &set_sb.s_mkfs_time, &set_sb.s_mkfs_time_hi, 5, |
9103e1e7 | 146 | parse_sb_time }, |
16c581d0 | 147 | { "jnl_blocks", &set_sb.s_jnl_blocks[0], NULL, 4, parse_uint, FLAG_ARRAY, |
89c80156 | 148 | 17 }, |
16c581d0 TT |
149 | { "min_extra_isize", &set_sb.s_min_extra_isize, NULL, 2, parse_uint }, |
150 | { "want_extra_isize", &set_sb.s_want_extra_isize, NULL, 2, parse_uint }, | |
151 | { "flags", &set_sb.s_flags, NULL, 4, parse_uint }, | |
152 | { "raid_stride", &set_sb.s_raid_stride, NULL, 2, parse_uint }, | |
0f5eba75 | 153 | { "mmp_interval", &set_sb.s_mmp_update_interval, NULL, 2, parse_uint }, |
16c581d0 TT |
154 | { "mmp_block", &set_sb.s_mmp_block, NULL, 8, parse_uint }, |
155 | { "raid_stripe_width", &set_sb.s_raid_stripe_width, NULL, 4, parse_uint }, | |
156 | { "log_groups_per_flex", &set_sb.s_log_groups_per_flex, NULL, 1, parse_uint }, | |
157 | { "kbytes_written", &set_sb.s_kbytes_written, NULL, 8, parse_uint }, | |
158 | { "snapshot_inum", &set_sb.s_snapshot_inum, NULL, 4, parse_uint }, | |
159 | { "snapshot_id", &set_sb.s_snapshot_id, NULL, 4, parse_uint }, | |
160 | { "snapshot_r_blocks_count", &set_sb.s_snapshot_r_blocks_count, | |
161 | NULL, 8, parse_uint }, | |
162 | { "snapshot_list", &set_sb.s_snapshot_list, NULL, 4, parse_uint }, | |
163 | { "mount_opts", &set_sb.s_mount_opts, NULL, 64, parse_string }, | |
164 | { "usr_quota_inum", &set_sb.s_usr_quota_inum, NULL, 4, parse_uint }, | |
165 | { "grp_quota_inum", &set_sb.s_grp_quota_inum, NULL, 4, parse_uint }, | |
080e09b4 | 166 | { "prj_quota_inum", &set_sb.s_prj_quota_inum, NULL, 4, parse_uint }, |
6022925d | 167 | { "overhead_clusters", &set_sb.s_overhead_clusters, NULL, 4, parse_uint }, |
65c6c3e0 TT |
168 | { "backup_bgs", &set_sb.s_backup_bgs[0], NULL, 4, parse_uint, |
169 | FLAG_ARRAY, 2 }, | |
16c581d0 | 170 | { "checksum", &set_sb.s_checksum, NULL, 4, parse_uint }, |
1eedf3e5 | 171 | { "checksum_type", &set_sb.s_checksum_type, NULL, 1, parse_uint }, |
fc898cb9 | 172 | { "encryption_level", &set_sb.s_encryption_level, NULL, 1, parse_uint }, |
a5116959 | 173 | { "error_count", &set_sb.s_error_count, NULL, 4, parse_uint }, |
ca8bc924 | 174 | { "first_error_time", &set_sb.s_first_error_time, |
9103e1e7 | 175 | &set_sb.s_first_error_time_hi, 5, parse_sb_time }, |
a5116959 TT |
176 | { "first_error_ino", &set_sb.s_first_error_ino, NULL, 4, parse_uint }, |
177 | { "first_error_block", &set_sb.s_first_error_block, NULL, 8, parse_uint }, | |
178 | { "first_error_func", &set_sb.s_first_error_func, NULL, 32, parse_string }, | |
f7e37e8b | 179 | { "first_error_line", &set_sb.s_first_error_line, NULL, 4, parse_uint }, |
ca8bc924 | 180 | { "last_error_time", &set_sb.s_last_error_time, |
9103e1e7 | 181 | &set_sb.s_last_error_time_hi, 5, parse_sb_time }, |
a5116959 TT |
182 | { "last_error_ino", &set_sb.s_last_error_ino, NULL, 4, parse_uint }, |
183 | { "last_error_block", &set_sb.s_last_error_block, NULL, 8, parse_uint }, | |
184 | { "last_error_func", &set_sb.s_last_error_func, NULL, 32, parse_string }, | |
f7e37e8b | 185 | { "last_error_line", &set_sb.s_last_error_line, NULL, 4, parse_uint }, |
22f22ab1 TT |
186 | { "encrypt_algos", &set_sb.s_encrypt_algos, NULL, 1, parse_uint, |
187 | FLAG_ARRAY, 4 }, | |
41f22101 | 188 | { "encrypt_pw_salt", &set_sb.s_encrypt_pw_salt, NULL, 16, parse_uuid }, |
fc898cb9 | 189 | { "lpf_ino", &set_sb.s_lpf_ino, NULL, 4, parse_uint }, |
2ed0adbc | 190 | { "checksum_seed", &set_sb.s_checksum_seed, NULL, 4, parse_uint }, |
cc8df47c | 191 | { "encoding", &set_sb.s_encoding, NULL, 2, parse_encoding }, |
a8f52588 | 192 | { "orphan_file_inum", &set_sb.s_orphan_file_inum, NULL, 4, parse_uint }, |
c6bd0c97 TT |
193 | { 0, 0, 0, 0 } |
194 | }; | |
195 | ||
7dec050a | 196 | static struct field_set_info inode_fields[] = { |
16c581d0 TT |
197 | { "mode", &set_inode.i_mode, NULL, 2, parse_uint }, |
198 | { "uid", &set_inode.i_uid, &set_inode.osd2.linux2.l_i_uid_high, | |
199 | 2, parse_uint }, | |
200 | { "size", &set_inode.i_size, &set_inode.i_size_high, 4, parse_uint }, | |
188960ea | 201 | { "atime", &set_inode.i_atime, &set_inode.i_atime_extra, |
9103e1e7 | 202 | 4, parse_ino_time }, |
188960ea | 203 | { "ctime", &set_inode.i_ctime, &set_inode.i_ctime_extra, |
9103e1e7 | 204 | 4, parse_ino_time }, |
188960ea | 205 | { "mtime", &set_inode.i_mtime, &set_inode.i_mtime_extra, |
9103e1e7 | 206 | 4, parse_ino_time }, |
188960ea | 207 | { "dtime", &set_inode.i_dtime, NULL, |
9103e1e7 | 208 | 4, parse_ino_time }, |
16c581d0 TT |
209 | { "gid", &set_inode.i_gid, &set_inode.osd2.linux2.l_i_gid_high, |
210 | 2, parse_uint }, | |
211 | { "links_count", &set_inode.i_links_count, NULL, 2, parse_uint }, | |
212 | /* Special case: i_blocks is 4 bytes, i_blocks_high is 2 bytes */ | |
213 | { "blocks", &set_inode.i_blocks, &set_inode.osd2.linux2.l_i_blocks_hi, | |
214 | 6, parse_uint }, | |
215 | { "flags", &set_inode.i_flags, NULL, 4, parse_uint }, | |
216 | { "version", &set_inode.osd1.linux1.l_i_version, | |
217 | &set_inode.i_version_hi, 4, parse_uint }, | |
f7e37e8b KK |
218 | { "translator", &set_inode.osd1.hurd1.h_i_translator, NULL, |
219 | 4, parse_uint, FLAG_ALIAS }, | |
16c581d0 | 220 | { "block", &set_inode.i_block[0], NULL, 4, parse_uint, FLAG_ARRAY, |
08fd3f36 | 221 | EXT2_NDIR_BLOCKS }, |
16c581d0 TT |
222 | { "block[IND]", &set_inode.i_block[EXT2_IND_BLOCK], NULL, 4, parse_uint }, |
223 | { "block[DIND]", &set_inode.i_block[EXT2_DIND_BLOCK], NULL, 4, parse_uint }, | |
224 | { "block[TIND]", &set_inode.i_block[EXT2_TIND_BLOCK], NULL, 4, parse_uint }, | |
225 | { "generation", &set_inode.i_generation, NULL, 4, parse_uint }, | |
226 | /* Special case: i_file_acl_high is 2 bytes */ | |
227 | { "file_acl", &set_inode.i_file_acl, | |
228 | &set_inode.osd2.linux2.l_i_file_acl_high, 6, parse_uint }, | |
16c581d0 | 229 | { "faddr", &set_inode.i_faddr, NULL, 4, parse_uint }, |
f7e37e8b | 230 | { "frag", &set_inode.osd2.hurd2.h_i_frag, NULL, 1, parse_uint, FLAG_ALIAS }, |
16c581d0 TT |
231 | { "fsize", &set_inode.osd2.hurd2.h_i_fsize, NULL, 1, parse_uint }, |
232 | { "checksum", &set_inode.osd2.linux2.l_i_checksum_lo, | |
32917350 | 233 | &set_inode.i_checksum_hi, 2, parse_inode_csum, FLAG_CSUM }, |
16c581d0 | 234 | { "author", &set_inode.osd2.hurd2.h_i_author, NULL, |
f7e37e8b | 235 | 4, parse_uint, FLAG_ALIAS }, |
16c581d0 TT |
236 | { "extra_isize", &set_inode.i_extra_isize, NULL, |
237 | 2, parse_uint }, | |
238 | { "ctime_extra", &set_inode.i_ctime_extra, NULL, | |
188960ea | 239 | 4, parse_uint, FLAG_ALIAS }, |
16c581d0 | 240 | { "mtime_extra", &set_inode.i_mtime_extra, NULL, |
188960ea | 241 | 4, parse_uint, FLAG_ALIAS }, |
16c581d0 | 242 | { "atime_extra", &set_inode.i_atime_extra, NULL, |
188960ea TT |
243 | 4, parse_uint, FLAG_ALIAS }, |
244 | { "crtime", &set_inode.i_crtime, &set_inode.i_crtime_extra, | |
9103e1e7 | 245 | 4, parse_ino_time }, |
16c581d0 | 246 | { "crtime_extra", &set_inode.i_crtime_extra, NULL, |
188960ea | 247 | 4, parse_uint, FLAG_ALIAS }, |
f3d9ac36 | 248 | { "projid", &set_inode.i_projid, NULL, 4, parse_uint }, |
16c581d0 | 249 | { "bmap", NULL, NULL, 4, parse_bmap, FLAG_ARRAY }, |
7dec050a TT |
250 | { 0, 0, 0, 0 } |
251 | }; | |
252 | ||
c7c1209e | 253 | static struct field_set_info ext2_bg_fields[] = { |
16c581d0 TT |
254 | { "block_bitmap", &set_gd.bg_block_bitmap, NULL, 4, parse_uint }, |
255 | { "inode_bitmap", &set_gd.bg_inode_bitmap, NULL, 4, parse_uint }, | |
256 | { "inode_table", &set_gd.bg_inode_table, NULL, 4, parse_uint }, | |
257 | { "free_blocks_count", &set_gd.bg_free_blocks_count, NULL, 2, parse_uint }, | |
258 | { "free_inodes_count", &set_gd.bg_free_inodes_count, NULL, 2, parse_uint }, | |
259 | { "used_dirs_count", &set_gd.bg_used_dirs_count, NULL, 2, parse_uint }, | |
260 | { "flags", &set_gd.bg_flags, NULL, 2, parse_uint }, | |
261 | { "itable_unused", &set_gd.bg_itable_unused, NULL, 2, parse_uint }, | |
262 | { "checksum", &set_gd.bg_checksum, NULL, 2, parse_gd_csum }, | |
c7c1209e TT |
263 | { 0, 0, 0, 0 } |
264 | }; | |
265 | ||
16c581d0 TT |
266 | static struct field_set_info ext4_bg_fields[] = { |
267 | { "block_bitmap", &set_gd4.bg_block_bitmap, | |
268 | &set_gd4.bg_block_bitmap_hi, 4, parse_uint }, | |
269 | { "inode_bitmap", &set_gd4.bg_inode_bitmap, | |
270 | &set_gd4.bg_inode_bitmap_hi, 4, parse_uint }, | |
271 | { "inode_table", &set_gd4.bg_inode_table, | |
272 | &set_gd4.bg_inode_table_hi, 4, parse_uint }, | |
273 | { "free_blocks_count", &set_gd4.bg_free_blocks_count, | |
274 | &set_gd4.bg_free_blocks_count_hi, 2, parse_uint }, | |
275 | { "free_inodes_count", &set_gd4.bg_free_inodes_count, | |
276 | &set_gd4.bg_free_inodes_count_hi, 2, parse_uint }, | |
277 | { "used_dirs_count", &set_gd4.bg_used_dirs_count, | |
278 | &set_gd4.bg_used_dirs_count_hi, 2, parse_uint }, | |
279 | { "flags", &set_gd4.bg_flags, NULL, 2, parse_uint }, | |
280 | { "exclude_bitmap", &set_gd4.bg_exclude_bitmap_lo, | |
281 | &set_gd4.bg_exclude_bitmap_hi, 4, parse_uint }, | |
282 | { "block_bitmap_csum", &set_gd4.bg_block_bitmap_csum_lo, | |
283 | &set_gd4.bg_block_bitmap_csum_hi, 2, parse_uint }, | |
284 | { "inode_bitmap_csum", &set_gd4.bg_inode_bitmap_csum_lo, | |
285 | &set_gd4.bg_inode_bitmap_csum_hi, 2, parse_uint }, | |
286 | { "itable_unused", &set_gd4.bg_itable_unused, | |
287 | &set_gd4.bg_itable_unused_hi, 2, parse_uint }, | |
288 | { "checksum", &set_gd4.bg_checksum, NULL, 2, parse_gd_csum }, | |
289 | { 0, 0, 0, 0 } | |
290 | }; | |
291 | ||
3cebf9c1 | 292 | static struct field_set_info mmp_fields[] = { |
f7e37e8b KK |
293 | { "clear", &set_mmp.mmp_magic, NULL, sizeof(set_mmp), |
294 | parse_mmp_clear, FLAG_ALIAS }, | |
3cebf9c1 TT |
295 | { "magic", &set_mmp.mmp_magic, NULL, 4, parse_uint }, |
296 | { "seq", &set_mmp.mmp_seq, NULL, 4, parse_uint }, | |
297 | { "time", &set_mmp.mmp_time, NULL, 8, parse_uint }, | |
298 | { "nodename", &set_mmp.mmp_nodename, NULL, sizeof(set_mmp.mmp_nodename), | |
299 | parse_string }, | |
300 | { "bdevname", &set_mmp.mmp_bdevname, NULL, sizeof(set_mmp.mmp_bdevname), | |
301 | parse_string }, | |
302 | { "check_interval", &set_mmp.mmp_check_interval, NULL, 2, parse_uint }, | |
a9620d8b | 303 | { "checksum", &set_mmp.mmp_checksum, NULL, 4, parse_uint }, |
f7e37e8b | 304 | { 0, 0, 0, 0 } |
3cebf9c1 | 305 | }; |
fddc423d | 306 | #if __GNUC_PREREQ (4, 6) |
12aa7ad5 | 307 | #pragma GCC diagnostic pop |
fddc423d | 308 | #endif |
7105c183 | 309 | |
f7e37e8b KK |
310 | #ifdef UNITTEST |
311 | ||
12aa7ad5 | 312 | |
f7e37e8b KK |
313 | static void do_verify_field_set_info(struct field_set_info *fields, |
314 | const void *data, size_t size) | |
315 | { | |
316 | struct field_set_info *ss, *ss2; | |
317 | const char *begin = (char *)data; | |
318 | const char *end = begin + size; | |
319 | ||
320 | for (ss = fields ; ss->name ; ss++) { | |
321 | const char *ptr; | |
322 | ||
323 | /* Check pointers */ | |
324 | ptr = ss->ptr; | |
325 | assert(!ptr || (ptr >= begin && ptr < end)); | |
326 | ptr = ss->ptr2; | |
327 | assert(!ptr || (ptr >= begin && ptr < end)); | |
328 | ||
329 | /* Check function */ | |
330 | assert(ss->func); | |
331 | ||
332 | for (ss2 = fields ; ss2 != ss ; ss2++) { | |
333 | /* Check duplicate names */ | |
334 | assert(strcmp(ss->name, ss2->name)); | |
335 | ||
336 | if (ss->flags & FLAG_ALIAS || ss2->flags & FLAG_ALIAS) | |
337 | continue; | |
338 | /* Check false aliases, might be copy-n-paste error */ | |
339 | assert(!ss->ptr || (ss->ptr != ss2->ptr && | |
340 | ss->ptr != ss2->ptr2)); | |
341 | assert(!ss->ptr2 || (ss->ptr2 != ss2->ptr && | |
342 | ss->ptr2 != ss2->ptr2)); | |
343 | } | |
344 | } | |
345 | } | |
346 | ||
347 | int main(int argc, char **argv) | |
348 | { | |
349 | do_verify_field_set_info(super_fields, &set_sb, sizeof(set_sb)); | |
350 | do_verify_field_set_info(inode_fields, &set_inode, sizeof(set_inode)); | |
351 | do_verify_field_set_info(ext2_bg_fields, &set_gd, sizeof(set_gd)); | |
352 | do_verify_field_set_info(ext4_bg_fields, &set_gd4, sizeof(set_gd4)); | |
353 | do_verify_field_set_info(mmp_fields, &set_mmp, sizeof(set_mmp)); | |
354 | return 0; | |
355 | } | |
356 | ||
357 | ext2_filsys current_fs; | |
358 | ext2_ino_t root, cwd; | |
359 | ||
360 | #endif /* UNITTEST */ | |
361 | ||
16c581d0 TT |
362 | static int check_suffix(const char *field) |
363 | { | |
364 | int len = strlen(field); | |
365 | ||
366 | if (len <= 3) | |
367 | return 0; | |
368 | field += len-3; | |
369 | if (!strcmp(field, "_lo")) | |
370 | return 1; | |
371 | if (!strcmp(field, "_hi")) | |
372 | return 2; | |
373 | return 0; | |
374 | } | |
c7c1209e | 375 | |
7dec050a TT |
376 | static struct field_set_info *find_field(struct field_set_info *fields, |
377 | char *field) | |
c6bd0c97 | 378 | { |
7dec050a | 379 | struct field_set_info *ss; |
08fd3f36 TT |
380 | const char *prefix; |
381 | char *arg, *delim, *idx, *tmp; | |
16c581d0 | 382 | int suffix, prefix_len; |
08fd3f36 TT |
383 | |
384 | if (fields == super_fields) | |
385 | prefix = "s_"; | |
c7c1209e | 386 | else if (fields == inode_fields) |
08fd3f36 | 387 | prefix = "i_"; |
c7c1209e TT |
388 | else |
389 | prefix = "bg_"; | |
390 | prefix_len = strlen(prefix); | |
391 | if (strncmp(field, prefix, prefix_len) == 0) | |
392 | field += prefix_len; | |
08fd3f36 TT |
393 | |
394 | arg = malloc(strlen(field)+1); | |
395 | if (!arg) | |
396 | return NULL; | |
397 | strcpy(arg, field); | |
398 | ||
399 | idx = strchr(arg, '['); | |
400 | if (idx) { | |
401 | *idx++ = 0; | |
402 | delim = idx + strlen(idx) - 1; | |
403 | if (!*idx || *delim != ']') | |
404 | idx = 0; | |
405 | else | |
406 | *delim = 0; | |
407 | } | |
efc6f628 | 408 | /* |
08fd3f36 TT |
409 | * Can we parse the number? |
410 | */ | |
411 | if (idx) { | |
412 | array_idx = strtol(idx, &tmp, 0); | |
59a591f6 TT |
413 | if (*tmp) { |
414 | *(--idx) = '['; | |
415 | *delim = ']'; | |
08fd3f36 | 416 | idx = 0; |
59a591f6 | 417 | } |
08fd3f36 TT |
418 | } |
419 | ||
16c581d0 TT |
420 | /* |
421 | * If there is a valid _hi or a _lo suffix, strip it off | |
422 | */ | |
423 | suffix = check_suffix(arg); | |
424 | if (suffix > 0) | |
425 | arg[strlen(arg)-3] = 0; | |
426 | ||
7dec050a | 427 | for (ss = fields ; ss->name ; ss++) { |
16c581d0 TT |
428 | if (suffix && ss->ptr2 == 0) |
429 | continue; | |
08fd3f36 TT |
430 | if (ss->flags & FLAG_ARRAY) { |
431 | if (!idx || (strcmp(ss->name, arg) != 0)) | |
432 | continue; | |
433 | if (ss->max_idx > 0 && array_idx >= ss->max_idx) | |
434 | continue; | |
435 | } else { | |
16c581d0 | 436 | if (strcmp(ss->name, arg) != 0) |
08fd3f36 TT |
437 | continue; |
438 | } | |
6e9761c2 | 439 | free(arg); |
08fd3f36 | 440 | return ss; |
c6bd0c97 | 441 | } |
6e9761c2 | 442 | free(arg); |
c6bd0c97 TT |
443 | return NULL; |
444 | } | |
445 | ||
16c581d0 TT |
446 | /* |
447 | * Note: info->size == 6 is special; this means a base size 4 bytes, | |
055866d8 | 448 | * and secondary (high) size of 2 bytes. This is needed for the |
16c581d0 | 449 | * special case of i_blocks_high and i_file_acl_high. |
ca8bc924 AD |
450 | * |
451 | * Similarly, info->size == 5 is for superblock timestamps, which have | |
452 | * a 4-byte primary field and a 1-byte _hi field. | |
16c581d0 TT |
453 | */ |
454 | static errcode_t parse_uint(struct field_set_info *info, char *field, | |
455 | char *arg) | |
c6bd0c97 | 456 | { |
16c581d0 TT |
457 | unsigned long long n, num, mask, limit; |
458 | int suffix = check_suffix(field); | |
c6bd0c97 | 459 | char *tmp; |
16c581d0 | 460 | void *field1 = info->ptr, *field2 = info->ptr2; |
55bc5ce4 TT |
461 | unsigned int size = (info->size == 6 || info->size == 5) ? 4 : |
462 | info->size; | |
08fd3f36 | 463 | union { |
007df860 | 464 | __u64 *ptr64; |
08fd3f36 TT |
465 | __u32 *ptr32; |
466 | __u16 *ptr16; | |
467 | __u8 *ptr8; | |
468 | } u; | |
469 | ||
16c581d0 TT |
470 | if (suffix == 1) |
471 | field2 = 0; | |
472 | if (suffix == 2) { | |
473 | field1 = field2; | |
474 | field2 = 0; | |
475 | } | |
476 | ||
477 | u.ptr8 = (__u8 *) field1; | |
08fd3f36 TT |
478 | if (info->flags & FLAG_ARRAY) |
479 | u.ptr8 += array_idx * info->size; | |
c6bd0c97 | 480 | |
007df860 TT |
481 | errno = 0; |
482 | num = STRTOULL(arg, &tmp, 0); | |
483 | if (*tmp || errno) { | |
c6bd0c97 TT |
484 | fprintf(stderr, "Couldn't parse '%s' for field %s.\n", |
485 | arg, info->name); | |
486 | return EINVAL; | |
487 | } | |
16c581d0 | 488 | mask = ~0ULL >> ((8 - size) * 8); |
007df860 | 489 | limit = ~0ULL >> ((8 - info->size) * 8); |
55bc5ce4 | 490 | if (field2 && (info->size != 6 && info->size != 5)) |
16c581d0 TT |
491 | limit = ~0ULL >> ((8 - info->size*2) * 8); |
492 | ||
007df860 TT |
493 | if (num > limit) { |
494 | fprintf(stderr, "Value '%s' exceeds field %s maximum %llu.\n", | |
495 | arg, info->name, limit); | |
496 | return EINVAL; | |
497 | } | |
16c581d0 TT |
498 | n = num & mask; |
499 | switch (size) { | |
007df860 | 500 | case 8: |
5b44781e | 501 | *u.ptr64 = n; |
007df860 | 502 | break; |
c6bd0c97 | 503 | case 4: |
16c581d0 | 504 | *u.ptr32 = n; |
c6bd0c97 TT |
505 | break; |
506 | case 2: | |
16c581d0 | 507 | *u.ptr16 = n; |
c6bd0c97 TT |
508 | break; |
509 | case 1: | |
16c581d0 TT |
510 | *u.ptr8 = n; |
511 | break; | |
512 | } | |
513 | if (!field2) | |
514 | return 0; | |
366d526f | 515 | n = (size == 8) ? 0 : (num >> (size*8)); |
16c581d0 | 516 | u.ptr8 = (__u8 *) field2; |
ca8bc924 AD |
517 | if (info->size > size) |
518 | size = info->size - size; | |
16c581d0 TT |
519 | switch (size) { |
520 | case 8: | |
5b44781e | 521 | /* Should never get here */ |
ca8bc924 AD |
522 | fprintf(stderr, |
523 | "64-bit field %s has a second 64-bit field defined; BUG?!?\n", | |
524 | info->name); | |
5b44781e | 525 | *u.ptr64 = 0; |
16c581d0 TT |
526 | break; |
527 | case 4: | |
528 | *u.ptr32 = n; | |
529 | break; | |
530 | case 2: | |
531 | *u.ptr16 = n; | |
532 | break; | |
533 | case 1: | |
534 | *u.ptr8 = n; | |
c6bd0c97 TT |
535 | break; |
536 | } | |
537 | return 0; | |
538 | } | |
539 | ||
3cebf9c1 TT |
540 | static errcode_t parse_int(struct field_set_info *info, |
541 | char *field EXT2FS_ATTR((unused)), char *arg) | |
c6bd0c97 TT |
542 | { |
543 | long num; | |
544 | char *tmp; | |
545 | __s32 *ptr32; | |
546 | __s16 *ptr16; | |
547 | __s8 *ptr8; | |
548 | ||
549 | num = strtol(arg, &tmp, 0); | |
550 | if (*tmp) { | |
551 | fprintf(stderr, "Couldn't parse '%s' for field %s.\n", | |
552 | arg, info->name); | |
553 | return EINVAL; | |
554 | } | |
555 | switch (info->size) { | |
556 | case 4: | |
557 | ptr32 = (__s32 *) info->ptr; | |
558 | *ptr32 = num; | |
559 | break; | |
560 | case 2: | |
561 | ptr16 = (__s16 *) info->ptr; | |
562 | *ptr16 = num; | |
563 | break; | |
564 | case 1: | |
565 | ptr8 = (__s8 *) info->ptr; | |
566 | *ptr8 = num; | |
567 | break; | |
568 | } | |
569 | return 0; | |
570 | } | |
571 | ||
3cebf9c1 TT |
572 | static errcode_t parse_string(struct field_set_info *info, |
573 | char *field EXT2FS_ATTR((unused)), char *arg) | |
c6bd0c97 TT |
574 | { |
575 | char *cp = (char *) info->ptr; | |
576 | ||
577 | if (strlen(arg) >= info->size) { | |
578 | fprintf(stderr, "Error maximum size for %s is %d.\n", | |
579 | info->name, info->size); | |
580 | return EINVAL; | |
581 | } | |
582 | strcpy(cp, arg); | |
583 | return 0; | |
584 | } | |
585 | ||
9103e1e7 TT |
586 | static errcode_t parse_sb_time(struct field_set_info *info, |
587 | char *field, char *arg) | |
7dec050a | 588 | { |
188960ea TT |
589 | __s64 t; |
590 | __u32 t_low, t_high; | |
9103e1e7 TT |
591 | __u32 *ptr_low; |
592 | __u8 *ptr_high; | |
188960ea TT |
593 | |
594 | if (check_suffix(field)) | |
595 | return parse_uint(info, field, arg); | |
7dec050a | 596 | |
188960ea | 597 | ptr_low = (__u32 *) info->ptr; |
9103e1e7 | 598 | ptr_high = (__u8 *) info->ptr2; |
7dec050a | 599 | |
4efae606 TT |
600 | t = string_to_time(arg); |
601 | ||
188960ea | 602 | if (t == -1) { |
4efae606 TT |
603 | fprintf(stderr, "Couldn't parse '%s' for field %s.\n", |
604 | arg, info->name); | |
605 | return EINVAL; | |
7dec050a | 606 | } |
188960ea TT |
607 | t_low = (__u32) t; |
608 | t_high = ((t - (__s32)t) >> 32) & EXT4_EPOCH_MASK; | |
609 | *ptr_low = t_low; | |
610 | if (ptr_high) | |
611 | *ptr_high = (*ptr_high & ~EXT4_EPOCH_MASK) | t_high; | |
7dec050a TT |
612 | return 0; |
613 | } | |
614 | ||
9103e1e7 TT |
615 | static errcode_t parse_ino_time(struct field_set_info *info, |
616 | char *field, char *arg) | |
617 | { | |
618 | __s64 t; | |
619 | __u32 t_low, t_high; | |
620 | __u32 *ptr_low, *ptr_high; | |
621 | ||
622 | if (check_suffix(field)) | |
623 | return parse_uint(info, field, arg); | |
624 | ||
625 | ptr_low = (__u32 *) info->ptr; | |
626 | ptr_high = (__u32 *) info->ptr2; | |
627 | ||
628 | t = string_to_time(arg); | |
629 | ||
630 | if (t == -1) { | |
631 | fprintf(stderr, "Couldn't parse '%s' for field %s.\n", | |
632 | arg, info->name); | |
633 | return EINVAL; | |
634 | } | |
635 | t_low = (__u32) t; | |
636 | t_high = __encode_extra_time(t, 0); | |
637 | *ptr_low = t_low; | |
638 | if (ptr_high) | |
639 | *ptr_high = t_high; | |
640 | return 0; | |
641 | } | |
642 | ||
3cebf9c1 TT |
643 | static errcode_t parse_uuid(struct field_set_info *info, |
644 | char *field EXT2FS_ATTR((unused)), char *arg) | |
f61fc0b5 | 645 | { |
3e699064 | 646 | unsigned char * p = (unsigned char *) info->ptr; |
efc6f628 | 647 | |
f61fc0b5 TT |
648 | if ((strcasecmp(arg, "null") == 0) || |
649 | (strcasecmp(arg, "clear") == 0)) { | |
650 | uuid_clear(p); | |
651 | } else if (strcasecmp(arg, "time") == 0) { | |
652 | uuid_generate_time(p); | |
653 | } else if (strcasecmp(arg, "random") == 0) { | |
654 | uuid_generate(p); | |
655 | } else if (uuid_parse(arg, p)) { | |
656 | fprintf(stderr, "Invalid UUID format: %s\n", arg); | |
657 | return EINVAL; | |
658 | } | |
659 | return 0; | |
660 | } | |
661 | ||
3cebf9c1 TT |
662 | static errcode_t parse_hashalg(struct field_set_info *info, |
663 | char *field EXT2FS_ATTR((unused)), char *arg) | |
f61fc0b5 TT |
664 | { |
665 | int hashv; | |
666 | unsigned char *p = (unsigned char *) info->ptr; | |
667 | ||
668 | hashv = e2p_string2hash(arg); | |
669 | if (hashv < 0) { | |
670 | fprintf(stderr, "Invalid hash algorithm: %s\n", arg); | |
671 | return EINVAL; | |
672 | } | |
673 | *p = hashv; | |
674 | return 0; | |
675 | } | |
676 | ||
cc8df47c TT |
677 | static errcode_t parse_encoding(struct field_set_info *info, |
678 | char *field EXT2FS_ATTR((unused)), char *arg) | |
679 | { | |
680 | int encoding; | |
681 | unsigned char *p = (unsigned char *) info->ptr; | |
682 | ||
683 | encoding = e2p_str2encoding(arg); | |
684 | if (encoding < 0) | |
685 | return parse_uint(info, field, arg); | |
686 | *p = encoding; | |
687 | return 0; | |
688 | } | |
689 | ||
3cebf9c1 TT |
690 | static errcode_t parse_bmap(struct field_set_info *info, |
691 | char *field EXT2FS_ATTR((unused)), char *arg) | |
08fd3f36 | 692 | { |
4dbfd79d | 693 | blk64_t blk; |
08fd3f36 TT |
694 | errcode_t retval; |
695 | char *tmp; | |
696 | ||
4dbfd79d | 697 | blk = strtoull(arg, &tmp, 0); |
08fd3f36 TT |
698 | if (*tmp) { |
699 | fprintf(stderr, "Couldn't parse '%s' for field %s.\n", | |
700 | arg, info->name); | |
701 | return EINVAL; | |
702 | } | |
08fd3f36 | 703 | |
4dbfd79d | 704 | retval = ext2fs_bmap2(current_fs, set_ino, |
fa633bf9 DW |
705 | (struct ext2_inode *) &set_inode, |
706 | NULL, BMAP_ALLOC | BMAP_SET, array_idx, NULL, | |
707 | &blk); | |
08fd3f36 TT |
708 | if (retval) { |
709 | com_err("set_inode", retval, "while setting block map"); | |
710 | } | |
619a8ea7 | 711 | return retval; |
08fd3f36 TT |
712 | } |
713 | ||
16c581d0 TT |
714 | static errcode_t parse_gd_csum(struct field_set_info *info, char *field, |
715 | char *arg) | |
cf96ecf1 | 716 | { |
612f7753 | 717 | __u16 *checksum = info->ptr; |
cf96ecf1 AD |
718 | |
719 | if (strcmp(arg, "calc") == 0) { | |
612f7753 TT |
720 | *checksum = ext2fs_group_desc_csum(current_fs, set_bg); |
721 | printf("Checksum set to 0x%04x\n", *checksum); | |
cf96ecf1 AD |
722 | return 0; |
723 | } | |
16c581d0 | 724 | return parse_uint(info, field, arg); |
cf96ecf1 | 725 | } |
f61fc0b5 | 726 | |
32917350 TT |
727 | static errcode_t parse_inode_csum(struct field_set_info *info, char *field, |
728 | char *arg) | |
729 | { | |
730 | errcode_t retval = 0; | |
731 | __u32 crc; | |
732 | int is_large_inode = 0; | |
32917350 TT |
733 | |
734 | if (strcmp(arg, "calc") == 0) { | |
735 | size_t sz = EXT2_INODE_SIZE(current_fs->super); | |
736 | struct ext2_inode_large *tmp_inode = NULL; | |
737 | ||
738 | retval = ext2fs_get_mem(sz, &tmp_inode); | |
739 | if (retval) | |
740 | goto out; | |
741 | ||
742 | retval = ext2fs_read_inode_full(current_fs, set_ino, | |
743 | (struct ext2_inode *) tmp_inode, | |
744 | sz); | |
745 | if (retval) | |
746 | goto out; | |
747 | ||
748 | #ifdef WORDS_BIGENDIAN | |
749 | ext2fs_swap_inode_full(current_fs, tmp_inode, | |
750 | tmp_inode, 1, sz); | |
751 | #endif | |
752 | ||
753 | if (sz > EXT2_GOOD_OLD_INODE_SIZE) | |
754 | is_large_inode = 1; | |
755 | ||
756 | retval = ext2fs_inode_csum_set(current_fs, set_ino, | |
757 | tmp_inode); | |
758 | if (retval) | |
759 | goto out; | |
760 | #ifdef WORDS_BIGENDIAN | |
761 | crc = set_inode.i_checksum_lo = | |
762 | ext2fs_swab16(tmp_inode->i_checksum_lo); | |
763 | ||
764 | #else | |
765 | crc = set_inode.i_checksum_lo = tmp_inode->i_checksum_lo; | |
766 | #endif | |
767 | if (is_large_inode && | |
768 | set_inode.i_extra_isize >= | |
769 | (offsetof(struct ext2_inode_large, | |
770 | i_checksum_hi) - | |
771 | EXT2_GOOD_OLD_INODE_SIZE)) { | |
772 | #ifdef WORDS_BIGENDIAN | |
773 | set_inode.i_checksum_lo = | |
774 | ext2fs_swab16(tmp_inode->i_checksum_lo); | |
775 | #else | |
776 | set_inode.i_checksum_hi = tmp_inode->i_checksum_hi; | |
777 | #endif | |
778 | crc |= ((__u32)set_inode.i_checksum_hi) << 16; | |
779 | } | |
780 | printf("Checksum set to 0x%08x\n", crc); | |
781 | out: | |
782 | ext2fs_free_mem(&tmp_inode); | |
783 | return retval; | |
784 | } | |
785 | return parse_uint(info, field, arg); | |
786 | } | |
787 | ||
7dec050a | 788 | static void print_possible_fields(struct field_set_info *fields) |
6e96adcb | 789 | { |
7dec050a TT |
790 | struct field_set_info *ss; |
791 | const char *type, *cmd; | |
792 | FILE *f; | |
08fd3f36 | 793 | char name[40], idx[40]; |
6e96adcb | 794 | |
7dec050a TT |
795 | if (fields == super_fields) { |
796 | type = "Superblock"; | |
797 | cmd = "set_super_value"; | |
c7c1209e | 798 | } else if (fields == inode_fields) { |
7dec050a TT |
799 | type = "Inode"; |
800 | cmd = "set_inode"; | |
7105c183 ES |
801 | } else if (fields == mmp_fields) { |
802 | type = "MMP"; | |
803 | cmd = "set_mmp_value"; | |
c7c1209e TT |
804 | } else { |
805 | type = "Block group descriptor"; | |
806 | cmd = "set_block_group"; | |
7dec050a TT |
807 | } |
808 | f = open_pager(); | |
809 | ||
810 | fprintf(f, "%s fields supported by the %s command:\n", type, cmd); | |
811 | ||
812 | for (ss = fields ; ss->name ; ss++) { | |
6e96adcb TT |
813 | type = "unknown"; |
814 | if (ss->func == parse_string) | |
815 | type = "string"; | |
816 | else if (ss->func == parse_int) | |
817 | type = "integer"; | |
818 | else if (ss->func == parse_uint) | |
819 | type = "unsigned integer"; | |
f61fc0b5 TT |
820 | else if (ss->func == parse_uuid) |
821 | type = "UUID"; | |
822 | else if (ss->func == parse_hashalg) | |
823 | type = "hash algorithm"; | |
9103e1e7 TT |
824 | else if ((ss->func == parse_sb_time) || |
825 | (ss->func == parse_ino_time)) | |
7dec050a | 826 | type = "date/time"; |
1d3a9511 TT |
827 | else if (ss->func == parse_bmap) |
828 | type = "set physical->logical block map"; | |
16c581d0 TT |
829 | else if (ss->func == parse_gd_csum) |
830 | type = "unsigned integer OR \"calc\""; | |
08fd3f36 TT |
831 | strcpy(name, ss->name); |
832 | if (ss->flags & FLAG_ARRAY) { | |
efc6f628 | 833 | if (ss->max_idx > 0) |
08fd3f36 TT |
834 | sprintf(idx, "[%d]", ss->max_idx); |
835 | else | |
836 | strcpy(idx, "[]"); | |
837 | strcat(name, idx); | |
838 | } | |
16c581d0 TT |
839 | if (ss->ptr2) |
840 | strcat(name, "[_hi|_lo]"); | |
841 | fprintf(f, "\t%-25s\t%s\n", name, type); | |
6e96adcb | 842 | } |
7dec050a | 843 | close_pager(f); |
6e96adcb TT |
844 | } |
845 | ||
846 | ||
49125d40 | 847 | void do_set_super(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)), |
2fcbcb1b | 848 | void *infop EXT2FS_ATTR((unused))) |
c6bd0c97 | 849 | { |
e1018eea TT |
850 | const char *usage = "<field> <value>\n" |
851 | "\t\"set_super_value -l\" will list the names of " | |
852 | "superblock fields\n\twhich can be set."; | |
7dec050a | 853 | static struct field_set_info *ss; |
efc6f628 | 854 | |
6e96adcb | 855 | if ((argc == 2) && !strcmp(argv[1], "-l")) { |
7dec050a | 856 | print_possible_fields(super_fields); |
6e96adcb TT |
857 | return; |
858 | } | |
859 | ||
e1018eea TT |
860 | if (common_args_process(argc, argv, 3, 3, "set_super_value", |
861 | usage, CHECK_FS_RW)) | |
c6bd0c97 TT |
862 | return; |
863 | ||
7dec050a | 864 | if ((ss = find_field(super_fields, argv[1])) == 0) { |
c6bd0c97 TT |
865 | com_err(argv[0], 0, "invalid field specifier: %s", argv[1]); |
866 | return; | |
867 | } | |
868 | set_sb = *current_fs->super; | |
16c581d0 | 869 | if (ss->func(ss, argv[1], argv[2]) == 0) { |
c6bd0c97 TT |
870 | *current_fs->super = set_sb; |
871 | ext2fs_mark_super_dirty(current_fs); | |
872 | } | |
873 | } | |
7dec050a | 874 | |
49125d40 | 875 | void do_set_inode(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)), |
2fcbcb1b | 876 | void *infop EXT2FS_ATTR((unused))) |
7dec050a TT |
877 | { |
878 | const char *usage = "<inode> <field> <value>\n" | |
1d3a9511 | 879 | "\t\"set_inode_field -l\" will list the names of " |
7dec050a TT |
880 | "the fields in an ext2 inode\n\twhich can be set."; |
881 | static struct field_set_info *ss; | |
efc6f628 | 882 | |
7dec050a TT |
883 | if ((argc == 2) && !strcmp(argv[1], "-l")) { |
884 | print_possible_fields(inode_fields); | |
885 | return; | |
886 | } | |
887 | ||
888 | if (common_args_process(argc, argv, 4, 4, "set_inode", | |
889 | usage, CHECK_FS_RW)) | |
890 | return; | |
891 | ||
892 | if ((ss = find_field(inode_fields, argv[2])) == 0) { | |
893 | com_err(argv[0], 0, "invalid field specifier: %s", argv[2]); | |
894 | return; | |
895 | } | |
896 | ||
08fd3f36 TT |
897 | set_ino = string_to_inode(argv[1]); |
898 | if (!set_ino) | |
7dec050a TT |
899 | return; |
900 | ||
32917350 TT |
901 | if (debugfs_read_inode2(set_ino, |
902 | (struct ext2_inode *) &set_inode, argv[1], | |
903 | sizeof(set_inode), | |
904 | (ss->flags & FLAG_CSUM) ? | |
905 | READ_INODE_NOCSUM : 0)) | |
7dec050a TT |
906 | return; |
907 | ||
16c581d0 | 908 | if (ss->func(ss, argv[2], argv[3]) == 0) { |
32917350 TT |
909 | debugfs_write_inode2(set_ino, |
910 | (struct ext2_inode *) &set_inode, | |
911 | argv[1], sizeof(set_inode), | |
912 | (ss->flags & FLAG_CSUM) ? | |
913 | WRITE_INODE_NOCSUM : 0); | |
7dec050a TT |
914 | } |
915 | } | |
c7c1209e | 916 | |
49125d40 | 917 | void do_set_block_group_descriptor(int argc, ss_argv_t argv, |
2fcbcb1b TT |
918 | int sci_idx EXT2FS_ATTR((unused)), |
919 | void *infop EXT2FS_ATTR((unused))) | |
c7c1209e TT |
920 | { |
921 | const char *usage = "<bg number> <field> <value>\n" | |
7600aa0f | 922 | "\t\"set_block_group -l\" will list the names of " |
c7c1209e | 923 | "the fields in a block group descriptor\n\twhich can be set."; |
16c581d0 | 924 | struct field_set_info *table; |
c7c1209e | 925 | struct field_set_info *ss; |
c7c1209e | 926 | char *end; |
16c581d0 TT |
927 | void *edit, *target; |
928 | int size; | |
929 | ||
930 | /* | |
2bc30417 AD |
931 | * Determine whether we are editing an ext2 or ext4 block group |
932 | * descriptor. Descriptors larger than ext4_group_desc cannot | |
933 | * have their fields edited yet, because they do not have any | |
934 | * names assigned. When that happens, this function needs to | |
935 | * be updated for the new descriptor struct and fields. | |
16c581d0 | 936 | */ |
2bc30417 AD |
937 | if (current_fs && |
938 | EXT2_DESC_SIZE(current_fs->super) >= EXT2_MIN_DESC_SIZE_64BIT) { | |
16c581d0 TT |
939 | table = ext4_bg_fields; |
940 | edit = &set_gd4; | |
941 | size = sizeof(set_gd4); | |
942 | } else { | |
943 | table = ext2_bg_fields; | |
944 | edit = &set_gd; | |
945 | size = sizeof(set_gd); | |
946 | } | |
c7c1209e TT |
947 | |
948 | if ((argc == 2) && !strcmp(argv[1], "-l")) { | |
16c581d0 | 949 | print_possible_fields(table); |
c7c1209e TT |
950 | return; |
951 | } | |
952 | ||
7600aa0f | 953 | if (common_args_process(argc, argv, 4, 4, "set_block_group", |
c7c1209e TT |
954 | usage, CHECK_FS_RW)) |
955 | return; | |
956 | ||
957 | set_bg = strtoul(argv[1], &end, 0); | |
958 | if (*end) { | |
959 | com_err(argv[0], 0, "invalid block group number: %s", argv[1]); | |
960 | return; | |
961 | } | |
962 | ||
963 | if (set_bg >= current_fs->group_desc_count) { | |
964 | com_err(argv[0], 0, "block group number too big: %d", set_bg); | |
965 | return; | |
966 | } | |
967 | ||
16c581d0 | 968 | if ((ss = find_field(table, argv[2])) == 0) { |
c7c1209e TT |
969 | com_err(argv[0], 0, "invalid field specifier: %s", argv[2]); |
970 | return; | |
971 | } | |
972 | ||
16c581d0 TT |
973 | target = ext2fs_group_desc(current_fs, current_fs->group_desc, set_bg); |
974 | memcpy(edit, target, size); | |
975 | if (ss->func(ss, argv[2], argv[3]) == 0) { | |
976 | memcpy(target, edit, size); | |
c7c1209e TT |
977 | ext2fs_mark_super_dirty(current_fs); |
978 | } | |
979 | } | |
0f5eba75 | 980 | |
3cebf9c1 TT |
981 | static errcode_t parse_mmp_clear(struct field_set_info *info, |
982 | char *field EXT2FS_ATTR((unused)), | |
983 | char *arg EXT2FS_ATTR((unused))) | |
0f5eba75 AD |
984 | { |
985 | errcode_t retval; | |
986 | ||
987 | retval = ext2fs_mmp_clear(current_fs); | |
988 | if (retval != 0) | |
989 | com_err("set_mmp_value", retval, "while clearing MMP block\n"); | |
990 | else | |
991 | memcpy(info->ptr, current_fs->mmp_buf, info->size); | |
992 | ||
993 | return 1; /* we don't need the MMP block written again */ | |
994 | } | |
995 | ||
25f291c9 | 996 | #ifdef CONFIG_MMP |
49125d40 | 997 | void do_set_mmp_value(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)), |
2fcbcb1b | 998 | void *infop EXT2FS_ATTR((unused))) |
0f5eba75 AD |
999 | { |
1000 | const char *usage = "<field> <value>\n" | |
1001 | "\t\"set_mmp_value -l\" will list the names of " | |
1002 | "MMP fields\n\twhich can be set."; | |
1003 | static struct field_set_info *smmp; | |
1004 | struct mmp_struct *mmp_s; | |
1005 | errcode_t retval; | |
1006 | ||
1007 | if (argc == 2 && strcmp(argv[1], "-l") == 0) { | |
1008 | print_possible_fields(mmp_fields); | |
1009 | return; | |
1010 | } | |
1011 | ||
7105c183 ES |
1012 | if (check_fs_open(argv[0])) |
1013 | return; | |
1014 | ||
0f5eba75 AD |
1015 | if (current_fs->super->s_mmp_block == 0) { |
1016 | com_err(argv[0], 0, "no MMP block allocated\n"); | |
1017 | return; | |
1018 | } | |
1019 | ||
1020 | if (common_args_process(argc, argv, 2, 3, "set_mmp_value", | |
1021 | usage, CHECK_FS_RW)) | |
1022 | return; | |
1023 | ||
1024 | mmp_s = current_fs->mmp_buf; | |
1025 | if (mmp_s == NULL) { | |
1026 | retval = ext2fs_get_mem(current_fs->blocksize, &mmp_s); | |
1027 | if (retval) { | |
1028 | com_err(argv[0], retval, "allocating MMP buffer\n"); | |
1029 | return; | |
1030 | } | |
1031 | retval = ext2fs_mmp_read(current_fs, | |
1032 | current_fs->super->s_mmp_block, mmp_s); | |
1033 | if (retval) { | |
1034 | com_err(argv[0], retval, "reading MMP block %llu.\n", | |
1035 | (long long)current_fs->super->s_mmp_block); | |
85b8f7af | 1036 | ext2fs_free_mem(&mmp_s); |
0f5eba75 AD |
1037 | return; |
1038 | } | |
1039 | current_fs->mmp_buf = mmp_s; | |
1040 | } | |
1041 | ||
1042 | smmp = find_field(mmp_fields, argv[1]); | |
1043 | if (smmp == 0) { | |
1044 | com_err(argv[0], 0, "invalid field specifier: %s", argv[1]); | |
1045 | return; | |
1046 | } | |
1047 | ||
1048 | set_mmp = *mmp_s; | |
1049 | if (smmp->func(smmp, argv[1], argv[2]) == 0) { | |
1050 | ext2fs_mmp_write(current_fs, current_fs->super->s_mmp_block, | |
1051 | &set_mmp); | |
1052 | *mmp_s = set_mmp; | |
1053 | } | |
25f291c9 | 1054 | } |
d6a4bcb5 | 1055 | #else |
25f291c9 | 1056 | void do_set_mmp_value(int argc EXT2FS_ATTR((unused)), |
49125d40 | 1057 | ss_argv_t argv EXT2FS_ATTR((unused)), |
2fcbcb1b TT |
1058 | int sci_idx EXT2FS_ATTR((unused)), |
1059 | void *infop EXT2FS_ATTR((unused))) | |
25f291c9 | 1060 | { |
d6a4bcb5 TB |
1061 | fprintf(stdout, "MMP is unsupported, please recompile with " |
1062 | "--enable-mmp\n"); | |
0f5eba75 | 1063 | } |
25f291c9 | 1064 | #endif |
0f5eba75 | 1065 |