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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a844f451 | 19 | #include "xfs_fs.h" |
1da177e4 | 20 | #include "xfs_types.h" |
1da177e4 | 21 | #include "xfs_log.h" |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 | 23 | #include "xfs_trans.h" |
a844f451 | 24 | #include "xfs_sb.h" |
1da177e4 LT |
25 | #include "xfs_dir2.h" |
26 | #include "xfs_dmapi.h" | |
27 | #include "xfs_mount.h" | |
28 | #include "xfs_bmap_btree.h" | |
1da177e4 | 29 | #include "xfs_dir2_sf.h" |
a844f451 | 30 | #include "xfs_attr_sf.h" |
1da177e4 LT |
31 | #include "xfs_dinode.h" |
32 | #include "xfs_inode.h" | |
33 | #include "xfs_utils.h" | |
34 | #include "xfs_error.h" | |
35 | ||
36 | #ifdef DEBUG | |
37 | ||
38 | int xfs_etrap[XFS_ERROR_NTRAP] = { | |
39 | 0, | |
40 | }; | |
41 | ||
42 | int | |
43 | xfs_error_trap(int e) | |
44 | { | |
45 | int i; | |
46 | ||
47 | if (!e) | |
48 | return 0; | |
49 | for (i = 0; i < XFS_ERROR_NTRAP; i++) { | |
50 | if (xfs_etrap[i] == 0) | |
51 | break; | |
52 | if (e != xfs_etrap[i]) | |
53 | continue; | |
54 | cmn_err(CE_NOTE, "xfs_error_trap: error %d", e); | |
1da177e4 LT |
55 | BUG(); |
56 | break; | |
57 | } | |
58 | return e; | |
59 | } | |
60 | #endif | |
61 | ||
62 | #if (defined(DEBUG) || defined(INDUCE_IO_ERROR)) | |
63 | ||
64 | int xfs_etest[XFS_NUM_INJECT_ERROR]; | |
65 | int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR]; | |
66 | char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR]; | |
67 | ||
68 | void | |
69 | xfs_error_test_init(void) | |
70 | { | |
71 | memset(xfs_etest, 0, sizeof(xfs_etest)); | |
72 | memset(xfs_etest_fsid, 0, sizeof(xfs_etest_fsid)); | |
73 | memset(xfs_etest_fsname, 0, sizeof(xfs_etest_fsname)); | |
74 | } | |
75 | ||
76 | int | |
77 | xfs_error_test(int error_tag, int *fsidp, char *expression, | |
78 | int line, char *file, unsigned long randfactor) | |
79 | { | |
80 | int i; | |
81 | int64_t fsid; | |
82 | ||
83 | if (random() % randfactor) | |
84 | return 0; | |
85 | ||
86 | memcpy(&fsid, fsidp, sizeof(xfs_fsid_t)); | |
87 | ||
88 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
89 | if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) { | |
90 | cmn_err(CE_WARN, | |
91 | "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"", | |
92 | expression, file, line, xfs_etest_fsname[i]); | |
93 | return 1; | |
94 | } | |
95 | } | |
96 | ||
97 | return 0; | |
98 | } | |
99 | ||
100 | int | |
101 | xfs_errortag_add(int error_tag, xfs_mount_t *mp) | |
102 | { | |
103 | int i; | |
104 | int len; | |
105 | int64_t fsid; | |
106 | ||
107 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
108 | ||
109 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
110 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { | |
111 | cmn_err(CE_WARN, "XFS error tag #%d on", error_tag); | |
112 | return 0; | |
113 | } | |
114 | } | |
115 | ||
116 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
117 | if (xfs_etest[i] == 0) { | |
118 | cmn_err(CE_WARN, "Turned on XFS error tag #%d", | |
119 | error_tag); | |
120 | xfs_etest[i] = error_tag; | |
121 | xfs_etest_fsid[i] = fsid; | |
122 | len = strlen(mp->m_fsname); | |
123 | xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP); | |
124 | strcpy(xfs_etest_fsname[i], mp->m_fsname); | |
125 | return 0; | |
126 | } | |
127 | } | |
128 | ||
129 | cmn_err(CE_WARN, "error tag overflow, too many turned on"); | |
130 | ||
131 | return 1; | |
132 | } | |
133 | ||
134 | int | |
135 | xfs_errortag_clear(int error_tag, xfs_mount_t *mp) | |
136 | { | |
137 | int i; | |
138 | int64_t fsid; | |
139 | ||
140 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
141 | ||
142 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
143 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { | |
144 | xfs_etest[i] = 0; | |
145 | xfs_etest_fsid[i] = 0LL; | |
146 | kmem_free(xfs_etest_fsname[i], | |
147 | strlen(xfs_etest_fsname[i]) + 1); | |
148 | xfs_etest_fsname[i] = NULL; | |
149 | cmn_err(CE_WARN, "Cleared XFS error tag #%d", | |
150 | error_tag); | |
151 | return 0; | |
152 | } | |
153 | } | |
154 | ||
155 | cmn_err(CE_WARN, "XFS error tag %d not on", error_tag); | |
156 | ||
157 | return 1; | |
158 | } | |
159 | ||
160 | int | |
161 | xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud) | |
162 | { | |
163 | int i; | |
164 | int cleared = 0; | |
165 | ||
166 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
167 | if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) && | |
168 | xfs_etest[i] != 0) { | |
169 | cleared = 1; | |
170 | cmn_err(CE_WARN, "Clearing XFS error tag #%d", | |
171 | xfs_etest[i]); | |
172 | xfs_etest[i] = 0; | |
173 | xfs_etest_fsid[i] = 0LL; | |
174 | kmem_free(xfs_etest_fsname[i], | |
175 | strlen(xfs_etest_fsname[i]) + 1); | |
176 | xfs_etest_fsname[i] = NULL; | |
177 | } | |
178 | } | |
179 | ||
180 | if (loud || cleared) | |
181 | cmn_err(CE_WARN, | |
182 | "Cleared all XFS error tags for filesystem \"%s\"", | |
183 | fsname); | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
188 | int | |
189 | xfs_errortag_clearall(xfs_mount_t *mp) | |
190 | { | |
191 | int64_t fsid; | |
192 | ||
193 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
194 | ||
195 | return xfs_errortag_clearall_umount(fsid, mp->m_fsname, 1); | |
196 | } | |
197 | #endif /* DEBUG || INDUCE_IO_ERROR */ | |
198 | ||
199 | static void | |
200 | xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap) | |
201 | { | |
202 | if (mp != NULL) { | |
203 | char *newfmt; | |
204 | int len = 16 + mp->m_fsname_len + strlen(fmt); | |
205 | ||
206 | newfmt = kmem_alloc(len, KM_SLEEP); | |
207 | sprintf(newfmt, "Filesystem \"%s\": %s", mp->m_fsname, fmt); | |
208 | icmn_err(level, newfmt, ap); | |
209 | kmem_free(newfmt, len); | |
210 | } else { | |
211 | icmn_err(level, fmt, ap); | |
212 | } | |
213 | } | |
214 | ||
215 | void | |
216 | xfs_fs_cmn_err(int level, xfs_mount_t *mp, char *fmt, ...) | |
217 | { | |
218 | va_list ap; | |
219 | ||
220 | va_start(ap, fmt); | |
221 | xfs_fs_vcmn_err(level, mp, fmt, ap); | |
222 | va_end(ap); | |
223 | } | |
224 | ||
225 | void | |
226 | xfs_cmn_err(int panic_tag, int level, xfs_mount_t *mp, char *fmt, ...) | |
227 | { | |
228 | va_list ap; | |
229 | ||
230 | #ifdef DEBUG | |
231 | xfs_panic_mask |= XFS_PTAG_SHUTDOWN_CORRUPT; | |
232 | #endif | |
233 | ||
234 | if (xfs_panic_mask && (xfs_panic_mask & panic_tag) | |
235 | && (level & CE_ALERT)) { | |
236 | level &= ~CE_ALERT; | |
237 | level |= CE_PANIC; | |
238 | cmn_err(CE_ALERT, "XFS: Transforming an alert into a BUG."); | |
239 | } | |
240 | va_start(ap, fmt); | |
241 | xfs_fs_vcmn_err(level, mp, fmt, ap); | |
242 | va_end(ap); | |
243 | } | |
244 | ||
245 | void | |
246 | xfs_error_report( | |
247 | char *tag, | |
248 | int level, | |
249 | xfs_mount_t *mp, | |
250 | char *fname, | |
251 | int linenum, | |
252 | inst_t *ra) | |
253 | { | |
254 | if (level <= xfs_error_level) { | |
255 | xfs_cmn_err(XFS_PTAG_ERROR_REPORT, | |
256 | CE_ALERT, mp, | |
257 | "XFS internal error %s at line %d of file %s. Caller 0x%p\n", | |
258 | tag, linenum, fname, ra); | |
259 | ||
260 | xfs_stack_trace(); | |
261 | } | |
262 | } | |
263 | ||
ba0f32d4 | 264 | STATIC void |
1da177e4 LT |
265 | xfs_hex_dump(void *p, int length) |
266 | { | |
267 | __uint8_t *uip = (__uint8_t*)p; | |
268 | int i; | |
269 | char sbuf[128], *s; | |
270 | ||
271 | s = sbuf; | |
272 | *s = '\0'; | |
273 | for (i=0; i<length; i++, uip++) { | |
274 | if ((i % 16) == 0) { | |
275 | if (*s != '\0') | |
276 | cmn_err(CE_ALERT, "%s\n", sbuf); | |
277 | s = sbuf; | |
278 | sprintf(s, "0x%x: ", i); | |
279 | while( *s != '\0') | |
280 | s++; | |
281 | } | |
282 | sprintf(s, "%02x ", *uip); | |
283 | ||
284 | /* | |
285 | * the kernel sprintf is a void; user sprintf returns | |
286 | * the sprintf'ed string's length. Find the new end- | |
287 | * of-string | |
288 | */ | |
289 | while( *s != '\0') | |
290 | s++; | |
291 | } | |
292 | cmn_err(CE_ALERT, "%s\n", sbuf); | |
293 | } | |
294 | ||
295 | void | |
296 | xfs_corruption_error( | |
297 | char *tag, | |
298 | int level, | |
299 | xfs_mount_t *mp, | |
300 | void *p, | |
301 | char *fname, | |
302 | int linenum, | |
303 | inst_t *ra) | |
304 | { | |
305 | if (level <= xfs_error_level) | |
306 | xfs_hex_dump(p, 16); | |
307 | xfs_error_report(tag, level, mp, fname, linenum, ra); | |
308 | } |