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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
26ef0cc7 | 23 | * Copyright (c) 2012, 2015 by Delphix. All rights reserved. |
34dc7c2f BB |
24 | */ |
25 | ||
34dc7c2f BB |
26 | /* |
27 | * ZFS Fault Injector | |
28 | * | |
29 | * This userland component takes a set of options and uses libzpool to translate | |
30 | * from a user-visible object type and name to an internal representation. | |
31 | * There are two basic types of faults: device faults and data faults. | |
32 | * | |
33 | * | |
34 | * DEVICE FAULTS | |
35 | * | |
36 | * Errors can be injected into a particular vdev using the '-d' option. This | |
37 | * option takes a path or vdev GUID to uniquely identify the device within a | |
38 | * pool. There are two types of errors that can be injected, EIO and ENXIO, | |
b128c09f | 39 | * that can be controlled through the '-e' option. The default is ENXIO. For |
34dc7c2f BB |
40 | * EIO failures, any attempt to read data from the device will return EIO, but |
41 | * subsequent attempt to reopen the device will succeed. For ENXIO failures, | |
42 | * any attempt to read from the device will return EIO, but any attempt to | |
43 | * reopen the device will also return ENXIO. | |
b128c09f | 44 | * For label faults, the -L option must be specified. This allows faults |
428870ff BB |
45 | * to be injected into either the nvlist, uberblock, pad1, or pad2 region |
46 | * of all the labels for the specified device. | |
34dc7c2f BB |
47 | * |
48 | * This form of the command looks like: | |
49 | * | |
428870ff | 50 | * zinject -d device [-e errno] [-L <uber | nvlist | pad1 | pad2>] pool |
34dc7c2f BB |
51 | * |
52 | * | |
53 | * DATA FAULTS | |
54 | * | |
55 | * We begin with a tuple of the form: | |
56 | * | |
57 | * <type,level,range,object> | |
58 | * | |
59 | * type A string describing the type of data to target. Each type | |
60 | * implicitly describes how to interpret 'object'. Currently, | |
61 | * the following values are supported: | |
62 | * | |
63 | * data User data for a file | |
64 | * dnode Dnode for a file or directory | |
65 | * | |
66 | * The following MOS objects are special. Instead of injecting | |
67 | * errors on a particular object or blkid, we inject errors across | |
68 | * all objects of the given type. | |
69 | * | |
70 | * mos Any data in the MOS | |
71 | * mosdir object directory | |
72 | * config pool configuration | |
428870ff | 73 | * bpobj blkptr list |
34dc7c2f BB |
74 | * spacemap spacemap |
75 | * metaslab metaslab | |
76 | * errlog persistent error log | |
77 | * | |
78 | * level Object level. Defaults to '0', not applicable to all types. If | |
79 | * a range is given, this corresponds to the indirect block | |
80 | * corresponding to the specific range. | |
81 | * | |
82 | * range A numerical range [start,end) within the object. Defaults to | |
83 | * the full size of the file. | |
84 | * | |
85 | * object A string describing the logical location of the object. For | |
86 | * files and directories (currently the only supported types), | |
87 | * this is the path of the object on disk. | |
88 | * | |
89 | * This is translated, via libzpool, into the following internal representation: | |
90 | * | |
91 | * <type,objset,object,level,range> | |
92 | * | |
93 | * These types should be self-explanatory. This tuple is then passed to the | |
94 | * kernel via a special ioctl() to initiate fault injection for the given | |
95 | * object. Note that 'type' is not strictly necessary for fault injection, but | |
96 | * is used when translating existing faults into a human-readable string. | |
97 | * | |
98 | * | |
99 | * The command itself takes one of the forms: | |
100 | * | |
101 | * zinject | |
102 | * zinject <-a | -u pool> | |
103 | * zinject -c <id|all> | |
104 | * zinject [-q] <-t type> [-f freq] [-u] [-a] [-m] [-e errno] [-l level] | |
105 | * [-r range] <object> | |
106 | * zinject [-f freq] [-a] [-m] [-u] -b objset:object:level:start:end pool | |
107 | * | |
108 | * With no arguments, the command prints all currently registered injection | |
109 | * handlers, with their numeric identifiers. | |
110 | * | |
111 | * The '-c' option will clear the given handler, or all handlers if 'all' is | |
112 | * specified. | |
113 | * | |
114 | * The '-e' option takes a string describing the errno to simulate. This must | |
115 | * be either 'io' or 'checksum'. In most cases this will result in the same | |
116 | * behavior, but RAID-Z will produce a different set of ereports for this | |
117 | * situation. | |
118 | * | |
119 | * The '-a', '-u', and '-m' flags toggle internal flush behavior. If '-a' is | |
120 | * specified, then the ARC cache is flushed appropriately. If '-u' is | |
121 | * specified, then the underlying SPA is unloaded. Either of these flags can be | |
122 | * specified independently of any other handlers. The '-m' flag automatically | |
123 | * does an unmount and remount of the underlying dataset to aid in flushing the | |
124 | * cache. | |
125 | * | |
126 | * The '-f' flag controls the frequency of errors injected, expressed as a | |
127 | * integer percentage between 1 and 100. The default is 100. | |
128 | * | |
129 | * The this form is responsible for actually injecting the handler into the | |
130 | * framework. It takes the arguments described above, translates them to the | |
131 | * internal tuple using libzpool, and then issues an ioctl() to register the | |
132 | * handler. | |
133 | * | |
134 | * The final form can target a specific bookmark, regardless of whether a | |
135 | * human-readable interface has been designed. It allows developers to specify | |
136 | * a particular block by number. | |
137 | */ | |
138 | ||
139 | #include <errno.h> | |
140 | #include <fcntl.h> | |
141 | #include <stdio.h> | |
142 | #include <stdlib.h> | |
143 | #include <strings.h> | |
144 | #include <unistd.h> | |
145 | ||
146 | #include <sys/fs/zfs.h> | |
147 | #include <sys/mount.h> | |
148 | ||
149 | #include <libzfs.h> | |
150 | ||
151 | #undef verify /* both libzfs.h and zfs_context.h want to define this */ | |
152 | ||
153 | #include "zinject.h" | |
154 | ||
155 | libzfs_handle_t *g_zfs; | |
156 | int zfs_fd; | |
157 | ||
158 | #define ECKSUM EBADE | |
159 | ||
160 | static const char *errtable[TYPE_INVAL] = { | |
161 | "data", | |
162 | "dnode", | |
163 | "mos", | |
164 | "mosdir", | |
165 | "metaslab", | |
166 | "config", | |
428870ff | 167 | "bpobj", |
34dc7c2f | 168 | "spacemap", |
b128c09f BB |
169 | "errlog", |
170 | "uber", | |
428870ff BB |
171 | "nvlist", |
172 | "pad1", | |
173 | "pad2" | |
34dc7c2f BB |
174 | }; |
175 | ||
176 | static err_type_t | |
177 | name_to_type(const char *arg) | |
178 | { | |
179 | int i; | |
180 | for (i = 0; i < TYPE_INVAL; i++) | |
181 | if (strcmp(errtable[i], arg) == 0) | |
182 | return (i); | |
183 | ||
184 | return (TYPE_INVAL); | |
185 | } | |
186 | ||
187 | static const char * | |
188 | type_to_name(uint64_t type) | |
189 | { | |
190 | switch (type) { | |
191 | case DMU_OT_OBJECT_DIRECTORY: | |
192 | return ("mosdir"); | |
193 | case DMU_OT_OBJECT_ARRAY: | |
194 | return ("metaslab"); | |
195 | case DMU_OT_PACKED_NVLIST: | |
196 | return ("config"); | |
428870ff BB |
197 | case DMU_OT_BPOBJ: |
198 | return ("bpobj"); | |
34dc7c2f BB |
199 | case DMU_OT_SPACE_MAP: |
200 | return ("spacemap"); | |
201 | case DMU_OT_ERROR_LOG: | |
202 | return ("errlog"); | |
203 | default: | |
204 | return ("-"); | |
205 | } | |
206 | } | |
207 | ||
208 | ||
209 | /* | |
210 | * Print usage message. | |
211 | */ | |
212 | void | |
213 | usage(void) | |
214 | { | |
215 | (void) printf( | |
216 | "usage:\n" | |
217 | "\n" | |
218 | "\tzinject\n" | |
219 | "\n" | |
220 | "\t\tList all active injection records.\n" | |
221 | "\n" | |
222 | "\tzinject -c <id|all>\n" | |
223 | "\n" | |
224 | "\t\tClear the particular record (if given a numeric ID), or\n" | |
2627e752 | 225 | "\t\tall records if 'all' is specified.\n" |
34dc7c2f | 226 | "\n" |
428870ff BB |
227 | "\tzinject -p <function name> pool\n" |
228 | "\t\tInject a panic fault at the specified function. Only \n" | |
229 | "\t\tfunctions which call spa_vdev_config_exit(), or \n" | |
230 | "\t\tspa_vdev_exit() will trigger a panic.\n" | |
231 | "\n" | |
232 | "\tzinject -d device [-e errno] [-L <nvlist|uber|pad1|pad2>] [-F]\n" | |
233 | "\t [-T <read|write|free|claim|all> pool\n" | |
b128c09f | 234 | "\t\tInject a fault into a particular device or the device's\n" |
428870ff BB |
235 | "\t\tlabel. Label injection can either be 'nvlist', 'uber',\n " |
236 | "\t\t'pad1', or 'pad2'.\n" | |
572e2857 | 237 | "\t\t'errno' can be 'nxio' (the default), 'io', or 'dtl'.\n" |
34dc7c2f | 238 | "\n" |
cc92e9d0 GW |
239 | "\tzinject -d device -A <degrade|fault> -D <delay secs> pool\n" |
240 | "\t\tPerform a specific action on a particular device.\n" | |
428870ff | 241 | "\n" |
26ef0cc7 TH |
242 | "\tzinject -d device -D latency:lanes pool\n" |
243 | "\n" | |
244 | "\t\tAdd an artificial delay to IO requests on a particular\n" | |
245 | "\t\tdevice, such that the requests take a minimum of 'latency'\n" | |
246 | "\t\tmilliseconds to complete. Each delay has an associated\n" | |
247 | "\t\tnumber of 'lanes' which defines the number of concurrent\n" | |
248 | "\t\tIO requests that can be processed.\n" | |
249 | "\n" | |
250 | "\t\tFor example, with a single lane delay of 10 ms (-D 10:1),\n" | |
251 | "\t\tthe device will only be able to service a single IO request\n" | |
252 | "\t\tat a time with each request taking 10 ms to complete. So,\n" | |
253 | "\t\tif only a single request is submitted every 10 ms, the\n" | |
254 | "\t\taverage latency will be 10 ms; but if more than one request\n" | |
255 | "\t\tis submitted every 10 ms, the average latency will be more\n" | |
256 | "\t\tthan 10 ms.\n" | |
257 | "\n" | |
258 | "\t\tSimilarly, if a delay of 10 ms is specified to have two\n" | |
259 | "\t\tlanes (-D 10:2), then the device will be able to service\n" | |
260 | "\t\ttwo requests at a time, each with a minimum latency of\n" | |
261 | "\t\t10 ms. So, if two requests are submitted every 10 ms, then\n" | |
262 | "\t\tthe average latency will be 10 ms; but if more than two\n" | |
263 | "\t\trequests are submitted every 10 ms, the average latency\n" | |
264 | "\t\twill be more than 10 ms.\n" | |
265 | "\n" | |
266 | "\t\tAlso note, these delays are additive. So two invocations\n" | |
267 | "\t\tof '-D 10:1', is roughly equivalent to a single invocation\n" | |
268 | "\t\tof '-D 10:2'. This also means, one can specify multiple\n" | |
269 | "\t\tlanes with differing target latencies. For example, an\n" | |
270 | "\t\tinvocation of '-D 10:1' followed by '-D 25:2' will\n" | |
271 | "\t\tcreate 3 lanes on the device; one lane with a latency\n" | |
272 | "\t\tof 10 ms and two lanes with a 25 ms latency.\n" | |
273 | "\n" | |
428870ff BB |
274 | "\tzinject -I [-s <seconds> | -g <txgs>] pool\n" |
275 | "\t\tCause the pool to stop writing blocks yet not\n" | |
276 | "\t\treport errors for a duration. Simulates buggy hardware\n" | |
277 | "\t\tthat fails to honor cache flush requests.\n" | |
278 | "\t\tDefault duration is 30 seconds. The machine is panicked\n" | |
279 | "\t\tat the end of the duration.\n" | |
280 | "\n" | |
34dc7c2f BB |
281 | "\tzinject -b objset:object:level:blkid pool\n" |
282 | "\n" | |
283 | "\t\tInject an error into pool 'pool' with the numeric bookmark\n" | |
284 | "\t\tspecified by the remaining tuple. Each number is in\n" | |
4e33ba4c | 285 | "\t\thexadecimal, and only one block can be specified.\n" |
34dc7c2f BB |
286 | "\n" |
287 | "\tzinject [-q] <-t type> [-e errno] [-l level] [-r range]\n" | |
288 | "\t [-a] [-m] [-u] [-f freq] <object>\n" | |
289 | "\n" | |
290 | "\t\tInject an error into the object specified by the '-t' option\n" | |
291 | "\t\tand the object descriptor. The 'object' parameter is\n" | |
2627e752 | 292 | "\t\tinterpreted depending on the '-t' option.\n" |
34dc7c2f BB |
293 | "\n" |
294 | "\t\t-q\tQuiet mode. Only print out the handler number added.\n" | |
295 | "\t\t-e\tInject a specific error. Must be either 'io' or\n" | |
296 | "\t\t\t'checksum'. Default is 'io'.\n" | |
297 | "\t\t-l\tInject error at a particular block level. Default is " | |
298 | "0.\n" | |
299 | "\t\t-m\tAutomatically remount underlying filesystem.\n" | |
300 | "\t\t-r\tInject error over a particular logical range of an\n" | |
301 | "\t\t\tobject. Will be translated to the appropriate blkid\n" | |
302 | "\t\t\trange according to the object's properties.\n" | |
303 | "\t\t-a\tFlush the ARC cache. Can be specified without any\n" | |
304 | "\t\t\tassociated object.\n" | |
305 | "\t\t-u\tUnload the associated pool. Can be specified with only\n" | |
306 | "\t\t\ta pool object.\n" | |
307 | "\t\t-f\tOnly inject errors a fraction of the time. Expressed as\n" | |
308 | "\t\t\ta percentage between 1 and 100.\n" | |
309 | "\n" | |
310 | "\t-t data\t\tInject an error into the plain file contents of a\n" | |
311 | "\t\t\tfile. The object must be specified as a complete path\n" | |
312 | "\t\t\tto a file on a ZFS filesystem.\n" | |
313 | "\n" | |
314 | "\t-t dnode\tInject an error into the metadnode in the block\n" | |
315 | "\t\t\tcorresponding to the dnode for a file or directory. The\n" | |
316 | "\t\t\t'-r' option is incompatible with this mode. The object\n" | |
317 | "\t\t\tis specified as a complete path to a file or directory\n" | |
318 | "\t\t\ton a ZFS filesystem.\n" | |
319 | "\n" | |
320 | "\t-t <mos>\tInject errors into the MOS for objects of the given\n" | |
428870ff | 321 | "\t\t\ttype. Valid types are: mos, mosdir, config, bpobj,\n" |
34dc7c2f BB |
322 | "\t\t\tspacemap, metaslab, errlog. The only valid <object> is\n" |
323 | "\t\t\tthe poolname.\n"); | |
324 | } | |
325 | ||
326 | static int | |
327 | iter_handlers(int (*func)(int, const char *, zinject_record_t *, void *), | |
328 | void *data) | |
329 | { | |
d3773fda | 330 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
331 | int ret; |
332 | ||
34dc7c2f BB |
333 | while (ioctl(zfs_fd, ZFS_IOC_INJECT_LIST_NEXT, &zc) == 0) |
334 | if ((ret = func((int)zc.zc_guid, zc.zc_name, | |
335 | &zc.zc_inject_record, data)) != 0) | |
336 | return (ret); | |
337 | ||
428870ff BB |
338 | if (errno != ENOENT) { |
339 | (void) fprintf(stderr, "Unable to list handlers: %s\n", | |
340 | strerror(errno)); | |
341 | return (-1); | |
342 | } | |
343 | ||
34dc7c2f BB |
344 | return (0); |
345 | } | |
346 | ||
347 | static int | |
348 | print_data_handler(int id, const char *pool, zinject_record_t *record, | |
349 | void *data) | |
350 | { | |
351 | int *count = data; | |
352 | ||
428870ff | 353 | if (record->zi_guid != 0 || record->zi_func[0] != '\0') |
34dc7c2f BB |
354 | return (0); |
355 | ||
356 | if (*count == 0) { | |
357 | (void) printf("%3s %-15s %-6s %-6s %-8s %3s %-15s\n", | |
358 | "ID", "POOL", "OBJSET", "OBJECT", "TYPE", "LVL", "RANGE"); | |
359 | (void) printf("--- --------------- ------ " | |
360 | "------ -------- --- ---------------\n"); | |
361 | } | |
362 | ||
363 | *count += 1; | |
364 | ||
365 | (void) printf("%3d %-15s %-6llu %-6llu %-8s %3d ", id, pool, | |
366 | (u_longlong_t)record->zi_objset, (u_longlong_t)record->zi_object, | |
367 | type_to_name(record->zi_type), record->zi_level); | |
368 | ||
369 | if (record->zi_start == 0 && | |
370 | record->zi_end == -1ULL) | |
371 | (void) printf("all\n"); | |
372 | else | |
373 | (void) printf("[%llu, %llu]\n", (u_longlong_t)record->zi_start, | |
374 | (u_longlong_t)record->zi_end); | |
375 | ||
376 | return (0); | |
377 | } | |
378 | ||
379 | static int | |
380 | print_device_handler(int id, const char *pool, zinject_record_t *record, | |
381 | void *data) | |
382 | { | |
383 | int *count = data; | |
384 | ||
428870ff | 385 | if (record->zi_guid == 0 || record->zi_func[0] != '\0') |
34dc7c2f BB |
386 | return (0); |
387 | ||
26ef0cc7 TH |
388 | if (record->zi_cmd == ZINJECT_DELAY_IO) |
389 | return (0); | |
390 | ||
34dc7c2f BB |
391 | if (*count == 0) { |
392 | (void) printf("%3s %-15s %s\n", "ID", "POOL", "GUID"); | |
393 | (void) printf("--- --------------- ----------------\n"); | |
394 | } | |
395 | ||
396 | *count += 1; | |
397 | ||
398 | (void) printf("%3d %-15s %llx\n", id, pool, | |
399 | (u_longlong_t)record->zi_guid); | |
400 | ||
401 | return (0); | |
402 | } | |
403 | ||
26ef0cc7 TH |
404 | static int |
405 | print_delay_handler(int id, const char *pool, zinject_record_t *record, | |
406 | void *data) | |
407 | { | |
408 | int *count = data; | |
409 | ||
410 | if (record->zi_guid == 0 || record->zi_func[0] != '\0') | |
411 | return (0); | |
412 | ||
413 | if (record->zi_cmd != ZINJECT_DELAY_IO) | |
414 | return (0); | |
415 | ||
416 | if (*count == 0) { | |
417 | (void) printf("%3s %-15s %-15s %-15s %s\n", | |
418 | "ID", "POOL", "DELAY (ms)", "LANES", "GUID"); | |
419 | (void) printf("--- --------------- --------------- " | |
420 | "--------------- ----------------\n"); | |
421 | } | |
422 | ||
423 | *count += 1; | |
424 | ||
425 | (void) printf("%3d %-15s %-15llu %-15llu %llx\n", id, pool, | |
426 | (u_longlong_t)NSEC2MSEC(record->zi_timer), | |
427 | (u_longlong_t)record->zi_nlanes, | |
428 | (u_longlong_t)record->zi_guid); | |
429 | ||
430 | return (0); | |
431 | } | |
432 | ||
428870ff BB |
433 | static int |
434 | print_panic_handler(int id, const char *pool, zinject_record_t *record, | |
435 | void *data) | |
436 | { | |
437 | int *count = data; | |
438 | ||
439 | if (record->zi_func[0] == '\0') | |
440 | return (0); | |
441 | ||
442 | if (*count == 0) { | |
443 | (void) printf("%3s %-15s %s\n", "ID", "POOL", "FUNCTION"); | |
444 | (void) printf("--- --------------- ----------------\n"); | |
445 | } | |
446 | ||
447 | *count += 1; | |
448 | ||
449 | (void) printf("%3d %-15s %s\n", id, pool, record->zi_func); | |
450 | ||
451 | return (0); | |
452 | } | |
453 | ||
34dc7c2f BB |
454 | /* |
455 | * Print all registered error handlers. Returns the number of handlers | |
456 | * registered. | |
457 | */ | |
458 | static int | |
459 | print_all_handlers(void) | |
460 | { | |
572e2857 | 461 | int count = 0, total = 0; |
34dc7c2f BB |
462 | |
463 | (void) iter_handlers(print_device_handler, &count); | |
572e2857 BB |
464 | if (count > 0) { |
465 | total += count; | |
466 | (void) printf("\n"); | |
467 | count = 0; | |
468 | } | |
469 | ||
26ef0cc7 TH |
470 | (void) iter_handlers(print_delay_handler, &count); |
471 | if (count > 0) { | |
472 | total += count; | |
473 | (void) printf("\n"); | |
474 | count = 0; | |
475 | } | |
476 | ||
34dc7c2f | 477 | (void) iter_handlers(print_data_handler, &count); |
572e2857 BB |
478 | if (count > 0) { |
479 | total += count; | |
480 | (void) printf("\n"); | |
481 | count = 0; | |
482 | } | |
483 | ||
428870ff | 484 | (void) iter_handlers(print_panic_handler, &count); |
34dc7c2f | 485 | |
572e2857 | 486 | return (count + total); |
34dc7c2f BB |
487 | } |
488 | ||
489 | /* ARGSUSED */ | |
490 | static int | |
491 | cancel_one_handler(int id, const char *pool, zinject_record_t *record, | |
492 | void *data) | |
493 | { | |
d3773fda | 494 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
495 | |
496 | zc.zc_guid = (uint64_t)id; | |
497 | ||
498 | if (ioctl(zfs_fd, ZFS_IOC_CLEAR_FAULT, &zc) != 0) { | |
499 | (void) fprintf(stderr, "failed to remove handler %d: %s\n", | |
500 | id, strerror(errno)); | |
501 | return (1); | |
502 | } | |
503 | ||
504 | return (0); | |
505 | } | |
506 | ||
507 | /* | |
508 | * Remove all fault injection handlers. | |
509 | */ | |
510 | static int | |
511 | cancel_all_handlers(void) | |
512 | { | |
513 | int ret = iter_handlers(cancel_one_handler, NULL); | |
514 | ||
428870ff BB |
515 | if (ret == 0) |
516 | (void) printf("removed all registered handlers\n"); | |
34dc7c2f BB |
517 | |
518 | return (ret); | |
519 | } | |
520 | ||
521 | /* | |
522 | * Remove a specific fault injection handler. | |
523 | */ | |
524 | static int | |
525 | cancel_handler(int id) | |
526 | { | |
d3773fda | 527 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
528 | |
529 | zc.zc_guid = (uint64_t)id; | |
530 | ||
531 | if (ioctl(zfs_fd, ZFS_IOC_CLEAR_FAULT, &zc) != 0) { | |
532 | (void) fprintf(stderr, "failed to remove handler %d: %s\n", | |
533 | id, strerror(errno)); | |
534 | return (1); | |
535 | } | |
536 | ||
537 | (void) printf("removed handler %d\n", id); | |
538 | ||
539 | return (0); | |
540 | } | |
541 | ||
542 | /* | |
543 | * Register a new fault injection handler. | |
544 | */ | |
545 | static int | |
546 | register_handler(const char *pool, int flags, zinject_record_t *record, | |
547 | int quiet) | |
548 | { | |
d3773fda | 549 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f | 550 | |
0b78aeae | 551 | (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); |
34dc7c2f BB |
552 | zc.zc_inject_record = *record; |
553 | zc.zc_guid = flags; | |
554 | ||
555 | if (ioctl(zfs_fd, ZFS_IOC_INJECT_FAULT, &zc) != 0) { | |
556 | (void) fprintf(stderr, "failed to add handler: %s\n", | |
557 | strerror(errno)); | |
558 | return (1); | |
559 | } | |
560 | ||
561 | if (flags & ZINJECT_NULL) | |
562 | return (0); | |
563 | ||
564 | if (quiet) { | |
565 | (void) printf("%llu\n", (u_longlong_t)zc.zc_guid); | |
566 | } else { | |
567 | (void) printf("Added handler %llu with the following " | |
568 | "properties:\n", (u_longlong_t)zc.zc_guid); | |
569 | (void) printf(" pool: %s\n", pool); | |
570 | if (record->zi_guid) { | |
571 | (void) printf(" vdev: %llx\n", | |
572 | (u_longlong_t)record->zi_guid); | |
428870ff BB |
573 | } else if (record->zi_func[0] != '\0') { |
574 | (void) printf(" panic function: %s\n", | |
575 | record->zi_func); | |
576 | } else if (record->zi_duration > 0) { | |
577 | (void) printf(" time: %lld seconds\n", | |
578 | (u_longlong_t)record->zi_duration); | |
579 | } else if (record->zi_duration < 0) { | |
580 | (void) printf(" txgs: %lld \n", | |
581 | (u_longlong_t)-record->zi_duration); | |
34dc7c2f BB |
582 | } else { |
583 | (void) printf("objset: %llu\n", | |
584 | (u_longlong_t)record->zi_objset); | |
585 | (void) printf("object: %llu\n", | |
586 | (u_longlong_t)record->zi_object); | |
587 | (void) printf(" type: %llu\n", | |
588 | (u_longlong_t)record->zi_type); | |
589 | (void) printf(" level: %d\n", record->zi_level); | |
590 | if (record->zi_start == 0 && | |
591 | record->zi_end == -1ULL) | |
592 | (void) printf(" range: all\n"); | |
593 | else | |
594 | (void) printf(" range: [%llu, %llu)\n", | |
595 | (u_longlong_t)record->zi_start, | |
596 | (u_longlong_t)record->zi_end); | |
597 | } | |
598 | } | |
599 | ||
600 | return (0); | |
601 | } | |
602 | ||
428870ff BB |
603 | int |
604 | perform_action(const char *pool, zinject_record_t *record, int cmd) | |
605 | { | |
d3773fda | 606 | zfs_cmd_t zc = {"\0"}; |
428870ff BB |
607 | |
608 | ASSERT(cmd == VDEV_STATE_DEGRADED || cmd == VDEV_STATE_FAULTED); | |
609 | (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); | |
610 | zc.zc_guid = record->zi_guid; | |
611 | zc.zc_cookie = cmd; | |
612 | ||
613 | if (ioctl(zfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) | |
614 | return (0); | |
615 | ||
616 | return (1); | |
617 | } | |
618 | ||
26ef0cc7 TH |
619 | static int |
620 | parse_delay(char *str, uint64_t *delay, uint64_t *nlanes) | |
621 | { | |
622 | unsigned long scan_delay; | |
623 | unsigned long scan_nlanes; | |
624 | ||
625 | if (sscanf(str, "%lu:%lu", &scan_delay, &scan_nlanes) != 2) | |
626 | return (1); | |
627 | ||
628 | /* | |
629 | * We explicitly disallow a delay of zero here, because we key | |
630 | * off this value being non-zero in translate_device(), to | |
631 | * determine if the fault is a ZINJECT_DELAY_IO fault or not. | |
632 | */ | |
633 | if (scan_delay == 0) | |
634 | return (1); | |
635 | ||
636 | /* | |
637 | * The units for the CLI delay parameter is milliseconds, but | |
638 | * the data passed to the kernel is interpreted as nanoseconds. | |
639 | * Thus we scale the milliseconds to nanoseconds here, and this | |
640 | * nanosecond value is used to pass the delay to the kernel. | |
641 | */ | |
642 | *delay = MSEC2NSEC(scan_delay); | |
643 | *nlanes = scan_nlanes; | |
644 | ||
645 | return (0); | |
646 | } | |
647 | ||
34dc7c2f BB |
648 | int |
649 | main(int argc, char **argv) | |
650 | { | |
651 | int c; | |
652 | char *range = NULL; | |
653 | char *cancel = NULL; | |
654 | char *end; | |
655 | char *raw = NULL; | |
656 | char *device = NULL; | |
657 | int level = 0; | |
658 | int quiet = 0; | |
659 | int error = 0; | |
660 | int domount = 0; | |
428870ff BB |
661 | int io_type = ZIO_TYPES; |
662 | int action = VDEV_STATE_UNKNOWN; | |
34dc7c2f | 663 | err_type_t type = TYPE_INVAL; |
b128c09f | 664 | err_type_t label = TYPE_INVAL; |
34dc7c2f | 665 | zinject_record_t record = { 0 }; |
a64f903b GN |
666 | char pool[MAXNAMELEN] = ""; |
667 | char dataset[MAXNAMELEN] = ""; | |
149e873a | 668 | zfs_handle_t *zhp = NULL; |
428870ff BB |
669 | int nowrites = 0; |
670 | int dur_txg = 0; | |
671 | int dur_secs = 0; | |
34dc7c2f BB |
672 | int ret; |
673 | int flags = 0; | |
674 | ||
65037d9b BB |
675 | if ((g_zfs = libzfs_init()) == NULL) { |
676 | (void) fprintf(stderr, "%s", libzfs_error_init(errno)); | |
937210a5 | 677 | return (1); |
65037d9b | 678 | } |
937210a5 BB |
679 | |
680 | libzfs_print_on_error(g_zfs, B_TRUE); | |
681 | ||
682 | if ((zfs_fd = open(ZFS_DEV, O_RDWR)) < 0) { | |
683 | (void) fprintf(stderr, "failed to open ZFS device\n"); | |
5df39c1e | 684 | libzfs_fini(g_zfs); |
937210a5 BB |
685 | return (1); |
686 | } | |
687 | ||
34dc7c2f BB |
688 | if (argc == 1) { |
689 | /* | |
690 | * No arguments. Print the available handlers. If there are no | |
691 | * available handlers, direct the user to '-h' for help | |
692 | * information. | |
693 | */ | |
694 | if (print_all_handlers() == 0) { | |
695 | (void) printf("No handlers registered.\n"); | |
696 | (void) printf("Run 'zinject -h' for usage " | |
697 | "information.\n"); | |
698 | } | |
5df39c1e | 699 | libzfs_fini(g_zfs); |
34dc7c2f BB |
700 | return (0); |
701 | } | |
702 | ||
428870ff | 703 | while ((c = getopt(argc, argv, |
cc92e9d0 | 704 | ":aA:b:d:D:f:Fg:qhIc:t:T:l:mr:s:e:uL:p:")) != -1) { |
34dc7c2f BB |
705 | switch (c) { |
706 | case 'a': | |
707 | flags |= ZINJECT_FLUSH_ARC; | |
708 | break; | |
428870ff BB |
709 | case 'A': |
710 | if (strcasecmp(optarg, "degrade") == 0) { | |
711 | action = VDEV_STATE_DEGRADED; | |
712 | } else if (strcasecmp(optarg, "fault") == 0) { | |
713 | action = VDEV_STATE_FAULTED; | |
714 | } else { | |
715 | (void) fprintf(stderr, "invalid action '%s': " | |
716 | "must be 'degrade' or 'fault'\n", optarg); | |
717 | usage(); | |
5df39c1e | 718 | libzfs_fini(g_zfs); |
428870ff BB |
719 | return (1); |
720 | } | |
721 | break; | |
34dc7c2f BB |
722 | case 'b': |
723 | raw = optarg; | |
724 | break; | |
725 | case 'c': | |
726 | cancel = optarg; | |
727 | break; | |
728 | case 'd': | |
729 | device = optarg; | |
730 | break; | |
cc92e9d0 GW |
731 | case 'D': |
732 | errno = 0; | |
26ef0cc7 TH |
733 | ret = parse_delay(optarg, &record.zi_timer, |
734 | &record.zi_nlanes); | |
735 | if (ret != 0) { | |
736 | ||
cc92e9d0 GW |
737 | (void) fprintf(stderr, "invalid i/o delay " |
738 | "value: '%s'\n", optarg); | |
739 | usage(); | |
5df39c1e | 740 | libzfs_fini(g_zfs); |
cc92e9d0 GW |
741 | return (1); |
742 | } | |
743 | break; | |
34dc7c2f BB |
744 | case 'e': |
745 | if (strcasecmp(optarg, "io") == 0) { | |
746 | error = EIO; | |
747 | } else if (strcasecmp(optarg, "checksum") == 0) { | |
748 | error = ECKSUM; | |
749 | } else if (strcasecmp(optarg, "nxio") == 0) { | |
750 | error = ENXIO; | |
572e2857 BB |
751 | } else if (strcasecmp(optarg, "dtl") == 0) { |
752 | error = ECHILD; | |
34dc7c2f BB |
753 | } else { |
754 | (void) fprintf(stderr, "invalid error type " | |
755 | "'%s': must be 'io', 'checksum' or " | |
756 | "'nxio'\n", optarg); | |
757 | usage(); | |
5df39c1e | 758 | libzfs_fini(g_zfs); |
34dc7c2f BB |
759 | return (1); |
760 | } | |
761 | break; | |
762 | case 'f': | |
763 | record.zi_freq = atoi(optarg); | |
764 | if (record.zi_freq < 1 || record.zi_freq > 100) { | |
765 | (void) fprintf(stderr, "frequency range must " | |
766 | "be in the range (0, 100]\n"); | |
5df39c1e | 767 | libzfs_fini(g_zfs); |
34dc7c2f BB |
768 | return (1); |
769 | } | |
770 | break; | |
9babb374 BB |
771 | case 'F': |
772 | record.zi_failfast = B_TRUE; | |
773 | break; | |
428870ff BB |
774 | case 'g': |
775 | dur_txg = 1; | |
776 | record.zi_duration = (int)strtol(optarg, &end, 10); | |
777 | if (record.zi_duration <= 0 || *end != '\0') { | |
778 | (void) fprintf(stderr, "invalid duration '%s': " | |
779 | "must be a positive integer\n", optarg); | |
780 | usage(); | |
5df39c1e | 781 | libzfs_fini(g_zfs); |
428870ff BB |
782 | return (1); |
783 | } | |
784 | /* store duration of txgs as its negative */ | |
785 | record.zi_duration *= -1; | |
786 | break; | |
34dc7c2f BB |
787 | case 'h': |
788 | usage(); | |
5df39c1e | 789 | libzfs_fini(g_zfs); |
34dc7c2f | 790 | return (0); |
428870ff BB |
791 | case 'I': |
792 | /* default duration, if one hasn't yet been defined */ | |
793 | nowrites = 1; | |
794 | if (dur_secs == 0 && dur_txg == 0) | |
795 | record.zi_duration = 30; | |
796 | break; | |
34dc7c2f BB |
797 | case 'l': |
798 | level = (int)strtol(optarg, &end, 10); | |
799 | if (*end != '\0') { | |
800 | (void) fprintf(stderr, "invalid level '%s': " | |
801 | "must be an integer\n", optarg); | |
802 | usage(); | |
5df39c1e | 803 | libzfs_fini(g_zfs); |
34dc7c2f BB |
804 | return (1); |
805 | } | |
806 | break; | |
807 | case 'm': | |
808 | domount = 1; | |
809 | break; | |
428870ff BB |
810 | case 'p': |
811 | (void) strlcpy(record.zi_func, optarg, | |
812 | sizeof (record.zi_func)); | |
cc92e9d0 | 813 | record.zi_cmd = ZINJECT_PANIC; |
428870ff | 814 | break; |
34dc7c2f BB |
815 | case 'q': |
816 | quiet = 1; | |
817 | break; | |
818 | case 'r': | |
819 | range = optarg; | |
820 | break; | |
428870ff BB |
821 | case 's': |
822 | dur_secs = 1; | |
823 | record.zi_duration = (int)strtol(optarg, &end, 10); | |
824 | if (record.zi_duration <= 0 || *end != '\0') { | |
825 | (void) fprintf(stderr, "invalid duration '%s': " | |
826 | "must be a positive integer\n", optarg); | |
827 | usage(); | |
5df39c1e | 828 | libzfs_fini(g_zfs); |
428870ff BB |
829 | return (1); |
830 | } | |
831 | break; | |
832 | case 'T': | |
833 | if (strcasecmp(optarg, "read") == 0) { | |
834 | io_type = ZIO_TYPE_READ; | |
835 | } else if (strcasecmp(optarg, "write") == 0) { | |
836 | io_type = ZIO_TYPE_WRITE; | |
837 | } else if (strcasecmp(optarg, "free") == 0) { | |
838 | io_type = ZIO_TYPE_FREE; | |
839 | } else if (strcasecmp(optarg, "claim") == 0) { | |
840 | io_type = ZIO_TYPE_CLAIM; | |
841 | } else if (strcasecmp(optarg, "all") == 0) { | |
842 | io_type = ZIO_TYPES; | |
843 | } else { | |
844 | (void) fprintf(stderr, "invalid I/O type " | |
845 | "'%s': must be 'read', 'write', 'free', " | |
846 | "'claim' or 'all'\n", optarg); | |
847 | usage(); | |
5df39c1e | 848 | libzfs_fini(g_zfs); |
428870ff BB |
849 | return (1); |
850 | } | |
851 | break; | |
34dc7c2f | 852 | case 't': |
b128c09f BB |
853 | if ((type = name_to_type(optarg)) == TYPE_INVAL && |
854 | !MOS_TYPE(type)) { | |
34dc7c2f BB |
855 | (void) fprintf(stderr, "invalid type '%s'\n", |
856 | optarg); | |
857 | usage(); | |
5df39c1e | 858 | libzfs_fini(g_zfs); |
34dc7c2f BB |
859 | return (1); |
860 | } | |
861 | break; | |
862 | case 'u': | |
863 | flags |= ZINJECT_UNLOAD_SPA; | |
864 | break; | |
b128c09f BB |
865 | case 'L': |
866 | if ((label = name_to_type(optarg)) == TYPE_INVAL && | |
867 | !LABEL_TYPE(type)) { | |
868 | (void) fprintf(stderr, "invalid label type " | |
869 | "'%s'\n", optarg); | |
870 | usage(); | |
5df39c1e | 871 | libzfs_fini(g_zfs); |
b128c09f BB |
872 | return (1); |
873 | } | |
874 | break; | |
34dc7c2f BB |
875 | case ':': |
876 | (void) fprintf(stderr, "option -%c requires an " | |
877 | "operand\n", optopt); | |
878 | usage(); | |
5df39c1e | 879 | libzfs_fini(g_zfs); |
34dc7c2f BB |
880 | return (1); |
881 | case '?': | |
882 | (void) fprintf(stderr, "invalid option '%c'\n", | |
883 | optopt); | |
884 | usage(); | |
5df39c1e | 885 | libzfs_fini(g_zfs); |
34dc7c2f BB |
886 | return (2); |
887 | } | |
888 | } | |
889 | ||
890 | argc -= optind; | |
891 | argv += optind; | |
892 | ||
cc92e9d0 GW |
893 | if (record.zi_duration != 0) |
894 | record.zi_cmd = ZINJECT_IGNORED_WRITES; | |
895 | ||
34dc7c2f BB |
896 | if (cancel != NULL) { |
897 | /* | |
898 | * '-c' is invalid with any other options. | |
899 | */ | |
900 | if (raw != NULL || range != NULL || type != TYPE_INVAL || | |
cc92e9d0 | 901 | level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED) { |
34dc7c2f BB |
902 | (void) fprintf(stderr, "cancel (-c) incompatible with " |
903 | "any other options\n"); | |
904 | usage(); | |
5df39c1e | 905 | libzfs_fini(g_zfs); |
34dc7c2f BB |
906 | return (2); |
907 | } | |
908 | if (argc != 0) { | |
909 | (void) fprintf(stderr, "extraneous argument to '-c'\n"); | |
910 | usage(); | |
5df39c1e | 911 | libzfs_fini(g_zfs); |
34dc7c2f BB |
912 | return (2); |
913 | } | |
914 | ||
915 | if (strcmp(cancel, "all") == 0) { | |
916 | return (cancel_all_handlers()); | |
917 | } else { | |
918 | int id = (int)strtol(cancel, &end, 10); | |
919 | if (*end != '\0') { | |
920 | (void) fprintf(stderr, "invalid handle id '%s':" | |
921 | " must be an integer or 'all'\n", cancel); | |
922 | usage(); | |
5df39c1e | 923 | libzfs_fini(g_zfs); |
34dc7c2f BB |
924 | return (1); |
925 | } | |
926 | return (cancel_handler(id)); | |
927 | } | |
928 | } | |
929 | ||
930 | if (device != NULL) { | |
931 | /* | |
932 | * Device (-d) injection uses a completely different mechanism | |
933 | * for doing injection, so handle it separately here. | |
934 | */ | |
935 | if (raw != NULL || range != NULL || type != TYPE_INVAL || | |
cc92e9d0 | 936 | level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED) { |
34dc7c2f BB |
937 | (void) fprintf(stderr, "device (-d) incompatible with " |
938 | "data error injection\n"); | |
939 | usage(); | |
5df39c1e | 940 | libzfs_fini(g_zfs); |
34dc7c2f BB |
941 | return (2); |
942 | } | |
943 | ||
944 | if (argc != 1) { | |
945 | (void) fprintf(stderr, "device (-d) injection requires " | |
946 | "a single pool name\n"); | |
947 | usage(); | |
5df39c1e | 948 | libzfs_fini(g_zfs); |
34dc7c2f BB |
949 | return (2); |
950 | } | |
951 | ||
5df39c1e | 952 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
953 | dataset[0] = '\0'; |
954 | ||
955 | if (error == ECKSUM) { | |
956 | (void) fprintf(stderr, "device error type must be " | |
957 | "'io' or 'nxio'\n"); | |
5df39c1e | 958 | libzfs_fini(g_zfs); |
34dc7c2f BB |
959 | return (1); |
960 | } | |
961 | ||
428870ff | 962 | record.zi_iotype = io_type; |
5df39c1e | 963 | if (translate_device(pool, device, label, &record) != 0) { |
964 | libzfs_fini(g_zfs); | |
34dc7c2f | 965 | return (1); |
5df39c1e | 966 | } |
34dc7c2f BB |
967 | if (!error) |
968 | error = ENXIO; | |
428870ff BB |
969 | |
970 | if (action != VDEV_STATE_UNKNOWN) | |
971 | return (perform_action(pool, &record, action)); | |
972 | ||
34dc7c2f | 973 | } else if (raw != NULL) { |
428870ff | 974 | if (range != NULL || type != TYPE_INVAL || level != 0 || |
cc92e9d0 | 975 | record.zi_cmd != ZINJECT_UNINITIALIZED) { |
34dc7c2f BB |
976 | (void) fprintf(stderr, "raw (-b) format with " |
977 | "any other options\n"); | |
978 | usage(); | |
5df39c1e | 979 | libzfs_fini(g_zfs); |
34dc7c2f BB |
980 | return (2); |
981 | } | |
982 | ||
983 | if (argc != 1) { | |
984 | (void) fprintf(stderr, "raw (-b) format expects a " | |
985 | "single pool name\n"); | |
986 | usage(); | |
5df39c1e | 987 | libzfs_fini(g_zfs); |
34dc7c2f BB |
988 | return (2); |
989 | } | |
990 | ||
5df39c1e | 991 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
992 | dataset[0] = '\0'; |
993 | ||
994 | if (error == ENXIO) { | |
995 | (void) fprintf(stderr, "data error type must be " | |
996 | "'checksum' or 'io'\n"); | |
5df39c1e | 997 | libzfs_fini(g_zfs); |
34dc7c2f BB |
998 | return (1); |
999 | } | |
1000 | ||
cc92e9d0 | 1001 | record.zi_cmd = ZINJECT_DATA_FAULT; |
5df39c1e | 1002 | if (translate_raw(raw, &record) != 0) { |
1003 | libzfs_fini(g_zfs); | |
34dc7c2f | 1004 | return (1); |
5df39c1e | 1005 | } |
34dc7c2f BB |
1006 | if (!error) |
1007 | error = EIO; | |
cc92e9d0 | 1008 | } else if (record.zi_cmd == ZINJECT_PANIC) { |
428870ff | 1009 | if (raw != NULL || range != NULL || type != TYPE_INVAL || |
cc92e9d0 | 1010 | level != 0 || device != NULL) { |
428870ff BB |
1011 | (void) fprintf(stderr, "panic (-p) incompatible with " |
1012 | "other options\n"); | |
1013 | usage(); | |
5df39c1e | 1014 | libzfs_fini(g_zfs); |
428870ff BB |
1015 | return (2); |
1016 | } | |
1017 | ||
1018 | if (argc < 1 || argc > 2) { | |
1019 | (void) fprintf(stderr, "panic (-p) injection requires " | |
1020 | "a single pool name and an optional id\n"); | |
1021 | usage(); | |
5df39c1e | 1022 | libzfs_fini(g_zfs); |
428870ff BB |
1023 | return (2); |
1024 | } | |
1025 | ||
5df39c1e | 1026 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
428870ff BB |
1027 | if (argv[1] != NULL) |
1028 | record.zi_type = atoi(argv[1]); | |
1029 | dataset[0] = '\0'; | |
cc92e9d0 | 1030 | } else if (record.zi_cmd == ZINJECT_IGNORED_WRITES) { |
428870ff BB |
1031 | if (nowrites == 0) { |
1032 | (void) fprintf(stderr, "-s or -g meaningless " | |
1033 | "without -I (ignore writes)\n"); | |
1034 | usage(); | |
5df39c1e | 1035 | libzfs_fini(g_zfs); |
428870ff BB |
1036 | return (2); |
1037 | } else if (dur_secs && dur_txg) { | |
1038 | (void) fprintf(stderr, "choose a duration either " | |
1039 | "in seconds (-s) or a number of txgs (-g) " | |
1040 | "but not both\n"); | |
1041 | usage(); | |
5df39c1e | 1042 | libzfs_fini(g_zfs); |
428870ff BB |
1043 | return (2); |
1044 | } else if (argc != 1) { | |
1045 | (void) fprintf(stderr, "ignore writes (-I) " | |
1046 | "injection requires a single pool name\n"); | |
1047 | usage(); | |
5df39c1e | 1048 | libzfs_fini(g_zfs); |
428870ff BB |
1049 | return (2); |
1050 | } | |
1051 | ||
5df39c1e | 1052 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
428870ff | 1053 | dataset[0] = '\0'; |
34dc7c2f BB |
1054 | } else if (type == TYPE_INVAL) { |
1055 | if (flags == 0) { | |
1056 | (void) fprintf(stderr, "at least one of '-b', '-d', " | |
428870ff BB |
1057 | "'-t', '-a', '-p', '-I' or '-u' " |
1058 | "must be specified\n"); | |
34dc7c2f | 1059 | usage(); |
5df39c1e | 1060 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1061 | return (2); |
1062 | } | |
1063 | ||
1064 | if (argc == 1 && (flags & ZINJECT_UNLOAD_SPA)) { | |
5df39c1e | 1065 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
1066 | dataset[0] = '\0'; |
1067 | } else if (argc != 0) { | |
1068 | (void) fprintf(stderr, "extraneous argument for " | |
1069 | "'-f'\n"); | |
1070 | usage(); | |
5df39c1e | 1071 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1072 | return (2); |
1073 | } | |
1074 | ||
1075 | flags |= ZINJECT_NULL; | |
1076 | } else { | |
1077 | if (argc != 1) { | |
1078 | (void) fprintf(stderr, "missing object\n"); | |
1079 | usage(); | |
5df39c1e | 1080 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1081 | return (2); |
1082 | } | |
1083 | ||
1084 | if (error == ENXIO) { | |
1085 | (void) fprintf(stderr, "data error type must be " | |
1086 | "'checksum' or 'io'\n"); | |
5df39c1e | 1087 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1088 | return (1); |
1089 | } | |
1090 | ||
cc92e9d0 | 1091 | record.zi_cmd = ZINJECT_DATA_FAULT; |
34dc7c2f | 1092 | if (translate_record(type, argv[0], range, level, &record, pool, |
5df39c1e | 1093 | dataset) != 0) { |
02730c33 | 1094 | libzfs_fini(g_zfs); |
34dc7c2f | 1095 | return (1); |
5df39c1e | 1096 | } |
34dc7c2f BB |
1097 | if (!error) |
1098 | error = EIO; | |
1099 | } | |
1100 | ||
1101 | /* | |
1102 | * If this is pool-wide metadata, unmount everything. The ioctl() will | |
1103 | * unload the pool, so that we trigger spa-wide reopen of metadata next | |
1104 | * time we access the pool. | |
1105 | */ | |
1106 | if (dataset[0] != '\0' && domount) { | |
5df39c1e | 1107 | if ((zhp = zfs_open(g_zfs, dataset, |
02730c33 | 1108 | ZFS_TYPE_DATASET)) == NULL) { |
5df39c1e | 1109 | libzfs_fini(g_zfs); |
34dc7c2f | 1110 | return (1); |
5df39c1e | 1111 | } |
1112 | if (zfs_unmount(zhp, NULL, 0) != 0) { | |
1113 | libzfs_fini(g_zfs); | |
34dc7c2f | 1114 | return (1); |
5df39c1e | 1115 | } |
34dc7c2f BB |
1116 | } |
1117 | ||
1118 | record.zi_error = error; | |
1119 | ||
1120 | ret = register_handler(pool, flags, &record, quiet); | |
1121 | ||
1122 | if (dataset[0] != '\0' && domount) | |
1123 | ret = (zfs_mount(zhp, NULL, 0) != 0); | |
1124 | ||
1125 | libzfs_fini(g_zfs); | |
1126 | ||
1127 | return (ret); | |
1128 | } |