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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_dir.h" |
26 | #include "xfs_dir2.h" | |
27 | #include "xfs_dmapi.h" | |
28 | #include "xfs_mount.h" | |
29 | #include "xfs_bmap_btree.h" | |
1da177e4 LT |
30 | #include "xfs_dir_sf.h" |
31 | #include "xfs_dir2_sf.h" | |
a844f451 | 32 | #include "xfs_attr_sf.h" |
1da177e4 LT |
33 | #include "xfs_dinode.h" |
34 | #include "xfs_inode.h" | |
35 | #include "xfs_utils.h" | |
36 | #include "xfs_error.h" | |
37 | ||
38 | #ifdef DEBUG | |
39 | ||
40 | int xfs_etrap[XFS_ERROR_NTRAP] = { | |
41 | 0, | |
42 | }; | |
43 | ||
44 | int | |
45 | xfs_error_trap(int e) | |
46 | { | |
47 | int i; | |
48 | ||
49 | if (!e) | |
50 | return 0; | |
51 | for (i = 0; i < XFS_ERROR_NTRAP; i++) { | |
52 | if (xfs_etrap[i] == 0) | |
53 | break; | |
54 | if (e != xfs_etrap[i]) | |
55 | continue; | |
56 | cmn_err(CE_NOTE, "xfs_error_trap: error %d", e); | |
1da177e4 LT |
57 | BUG(); |
58 | break; | |
59 | } | |
60 | return e; | |
61 | } | |
62 | #endif | |
63 | ||
64 | #if (defined(DEBUG) || defined(INDUCE_IO_ERROR)) | |
65 | ||
66 | int xfs_etest[XFS_NUM_INJECT_ERROR]; | |
67 | int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR]; | |
68 | char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR]; | |
69 | ||
70 | void | |
71 | xfs_error_test_init(void) | |
72 | { | |
73 | memset(xfs_etest, 0, sizeof(xfs_etest)); | |
74 | memset(xfs_etest_fsid, 0, sizeof(xfs_etest_fsid)); | |
75 | memset(xfs_etest_fsname, 0, sizeof(xfs_etest_fsname)); | |
76 | } | |
77 | ||
78 | int | |
79 | xfs_error_test(int error_tag, int *fsidp, char *expression, | |
80 | int line, char *file, unsigned long randfactor) | |
81 | { | |
82 | int i; | |
83 | int64_t fsid; | |
84 | ||
85 | if (random() % randfactor) | |
86 | return 0; | |
87 | ||
88 | memcpy(&fsid, fsidp, sizeof(xfs_fsid_t)); | |
89 | ||
90 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
91 | if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) { | |
92 | cmn_err(CE_WARN, | |
93 | "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"", | |
94 | expression, file, line, xfs_etest_fsname[i]); | |
95 | return 1; | |
96 | } | |
97 | } | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | int | |
103 | xfs_errortag_add(int error_tag, xfs_mount_t *mp) | |
104 | { | |
105 | int i; | |
106 | int len; | |
107 | int64_t fsid; | |
108 | ||
109 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
110 | ||
111 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
112 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { | |
113 | cmn_err(CE_WARN, "XFS error tag #%d on", error_tag); | |
114 | return 0; | |
115 | } | |
116 | } | |
117 | ||
118 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
119 | if (xfs_etest[i] == 0) { | |
120 | cmn_err(CE_WARN, "Turned on XFS error tag #%d", | |
121 | error_tag); | |
122 | xfs_etest[i] = error_tag; | |
123 | xfs_etest_fsid[i] = fsid; | |
124 | len = strlen(mp->m_fsname); | |
125 | xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP); | |
126 | strcpy(xfs_etest_fsname[i], mp->m_fsname); | |
127 | return 0; | |
128 | } | |
129 | } | |
130 | ||
131 | cmn_err(CE_WARN, "error tag overflow, too many turned on"); | |
132 | ||
133 | return 1; | |
134 | } | |
135 | ||
136 | int | |
137 | xfs_errortag_clear(int error_tag, xfs_mount_t *mp) | |
138 | { | |
139 | int i; | |
140 | int64_t fsid; | |
141 | ||
142 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
143 | ||
144 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
145 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { | |
146 | xfs_etest[i] = 0; | |
147 | xfs_etest_fsid[i] = 0LL; | |
148 | kmem_free(xfs_etest_fsname[i], | |
149 | strlen(xfs_etest_fsname[i]) + 1); | |
150 | xfs_etest_fsname[i] = NULL; | |
151 | cmn_err(CE_WARN, "Cleared XFS error tag #%d", | |
152 | error_tag); | |
153 | return 0; | |
154 | } | |
155 | } | |
156 | ||
157 | cmn_err(CE_WARN, "XFS error tag %d not on", error_tag); | |
158 | ||
159 | return 1; | |
160 | } | |
161 | ||
162 | int | |
163 | xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud) | |
164 | { | |
165 | int i; | |
166 | int cleared = 0; | |
167 | ||
168 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
169 | if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) && | |
170 | xfs_etest[i] != 0) { | |
171 | cleared = 1; | |
172 | cmn_err(CE_WARN, "Clearing XFS error tag #%d", | |
173 | xfs_etest[i]); | |
174 | xfs_etest[i] = 0; | |
175 | xfs_etest_fsid[i] = 0LL; | |
176 | kmem_free(xfs_etest_fsname[i], | |
177 | strlen(xfs_etest_fsname[i]) + 1); | |
178 | xfs_etest_fsname[i] = NULL; | |
179 | } | |
180 | } | |
181 | ||
182 | if (loud || cleared) | |
183 | cmn_err(CE_WARN, | |
184 | "Cleared all XFS error tags for filesystem \"%s\"", | |
185 | fsname); | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | int | |
191 | xfs_errortag_clearall(xfs_mount_t *mp) | |
192 | { | |
193 | int64_t fsid; | |
194 | ||
195 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
196 | ||
197 | return xfs_errortag_clearall_umount(fsid, mp->m_fsname, 1); | |
198 | } | |
199 | #endif /* DEBUG || INDUCE_IO_ERROR */ | |
200 | ||
201 | static void | |
202 | xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap) | |
203 | { | |
204 | if (mp != NULL) { | |
205 | char *newfmt; | |
206 | int len = 16 + mp->m_fsname_len + strlen(fmt); | |
207 | ||
208 | newfmt = kmem_alloc(len, KM_SLEEP); | |
209 | sprintf(newfmt, "Filesystem \"%s\": %s", mp->m_fsname, fmt); | |
210 | icmn_err(level, newfmt, ap); | |
211 | kmem_free(newfmt, len); | |
212 | } else { | |
213 | icmn_err(level, fmt, ap); | |
214 | } | |
215 | } | |
216 | ||
217 | void | |
218 | xfs_fs_cmn_err(int level, xfs_mount_t *mp, char *fmt, ...) | |
219 | { | |
220 | va_list ap; | |
221 | ||
222 | va_start(ap, fmt); | |
223 | xfs_fs_vcmn_err(level, mp, fmt, ap); | |
224 | va_end(ap); | |
225 | } | |
226 | ||
227 | void | |
228 | xfs_cmn_err(int panic_tag, int level, xfs_mount_t *mp, char *fmt, ...) | |
229 | { | |
230 | va_list ap; | |
231 | ||
232 | #ifdef DEBUG | |
233 | xfs_panic_mask |= XFS_PTAG_SHUTDOWN_CORRUPT; | |
234 | #endif | |
235 | ||
236 | if (xfs_panic_mask && (xfs_panic_mask & panic_tag) | |
237 | && (level & CE_ALERT)) { | |
238 | level &= ~CE_ALERT; | |
239 | level |= CE_PANIC; | |
240 | cmn_err(CE_ALERT, "XFS: Transforming an alert into a BUG."); | |
241 | } | |
242 | va_start(ap, fmt); | |
243 | xfs_fs_vcmn_err(level, mp, fmt, ap); | |
244 | va_end(ap); | |
245 | } | |
246 | ||
247 | void | |
248 | xfs_error_report( | |
249 | char *tag, | |
250 | int level, | |
251 | xfs_mount_t *mp, | |
252 | char *fname, | |
253 | int linenum, | |
254 | inst_t *ra) | |
255 | { | |
256 | if (level <= xfs_error_level) { | |
257 | xfs_cmn_err(XFS_PTAG_ERROR_REPORT, | |
258 | CE_ALERT, mp, | |
259 | "XFS internal error %s at line %d of file %s. Caller 0x%p\n", | |
260 | tag, linenum, fname, ra); | |
261 | ||
262 | xfs_stack_trace(); | |
263 | } | |
264 | } | |
265 | ||
ba0f32d4 | 266 | STATIC void |
1da177e4 LT |
267 | xfs_hex_dump(void *p, int length) |
268 | { | |
269 | __uint8_t *uip = (__uint8_t*)p; | |
270 | int i; | |
271 | char sbuf[128], *s; | |
272 | ||
273 | s = sbuf; | |
274 | *s = '\0'; | |
275 | for (i=0; i<length; i++, uip++) { | |
276 | if ((i % 16) == 0) { | |
277 | if (*s != '\0') | |
278 | cmn_err(CE_ALERT, "%s\n", sbuf); | |
279 | s = sbuf; | |
280 | sprintf(s, "0x%x: ", i); | |
281 | while( *s != '\0') | |
282 | s++; | |
283 | } | |
284 | sprintf(s, "%02x ", *uip); | |
285 | ||
286 | /* | |
287 | * the kernel sprintf is a void; user sprintf returns | |
288 | * the sprintf'ed string's length. Find the new end- | |
289 | * of-string | |
290 | */ | |
291 | while( *s != '\0') | |
292 | s++; | |
293 | } | |
294 | cmn_err(CE_ALERT, "%s\n", sbuf); | |
295 | } | |
296 | ||
297 | void | |
298 | xfs_corruption_error( | |
299 | char *tag, | |
300 | int level, | |
301 | xfs_mount_t *mp, | |
302 | void *p, | |
303 | char *fname, | |
304 | int linenum, | |
305 | inst_t *ra) | |
306 | { | |
307 | if (level <= xfs_error_level) | |
308 | xfs_hex_dump(p, 16); | |
309 | xfs_error_report(tag, level, mp, fname, linenum, ra); | |
310 | } |