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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 | |
1d3ba0bf | 9 | * or https://opensource.org/licenses/CDDL-1.0. |
34dc7c2f BB |
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. |
0241e491 | 24 | * Copyright (c) 2017, Intel Corporation. |
34dc7c2f BB |
25 | */ |
26 | ||
34dc7c2f BB |
27 | /* |
28 | * ZFS Fault Injector | |
29 | * | |
30 | * This userland component takes a set of options and uses libzpool to translate | |
31 | * from a user-visible object type and name to an internal representation. | |
32 | * There are two basic types of faults: device faults and data faults. | |
33 | * | |
34 | * | |
35 | * DEVICE FAULTS | |
36 | * | |
37 | * Errors can be injected into a particular vdev using the '-d' option. This | |
38 | * option takes a path or vdev GUID to uniquely identify the device within a | |
d977122d DB |
39 | * pool. There are four types of errors that can be injected, IO, ENXIO, |
40 | * ECHILD, and EILSEQ. These can be controlled through the '-e' option and the | |
41 | * default is ENXIO. For EIO failures, any attempt to read data from the device | |
42 | * will return EIO, but a subsequent attempt to reopen the device will succeed. | |
43 | * For ENXIO failures, any attempt to read from the device will return EIO, but | |
44 | * any attempt to reopen the device will also return ENXIO. The EILSEQ failures | |
45 | * only apply to read operations (-T read) and will flip a bit after the device | |
46 | * has read the original data. | |
47 | * | |
b128c09f | 48 | * For label faults, the -L option must be specified. This allows faults |
428870ff BB |
49 | * to be injected into either the nvlist, uberblock, pad1, or pad2 region |
50 | * of all the labels for the specified device. | |
34dc7c2f BB |
51 | * |
52 | * This form of the command looks like: | |
53 | * | |
428870ff | 54 | * zinject -d device [-e errno] [-L <uber | nvlist | pad1 | pad2>] pool |
34dc7c2f BB |
55 | * |
56 | * | |
57 | * DATA FAULTS | |
58 | * | |
59 | * We begin with a tuple of the form: | |
60 | * | |
61 | * <type,level,range,object> | |
62 | * | |
63 | * type A string describing the type of data to target. Each type | |
64 | * implicitly describes how to interpret 'object'. Currently, | |
65 | * the following values are supported: | |
66 | * | |
67 | * data User data for a file | |
68 | * dnode Dnode for a file or directory | |
69 | * | |
70 | * The following MOS objects are special. Instead of injecting | |
71 | * errors on a particular object or blkid, we inject errors across | |
72 | * all objects of the given type. | |
73 | * | |
74 | * mos Any data in the MOS | |
75 | * mosdir object directory | |
76 | * config pool configuration | |
428870ff | 77 | * bpobj blkptr list |
34dc7c2f BB |
78 | * spacemap spacemap |
79 | * metaslab metaslab | |
80 | * errlog persistent error log | |
81 | * | |
82 | * level Object level. Defaults to '0', not applicable to all types. If | |
83 | * a range is given, this corresponds to the indirect block | |
84 | * corresponding to the specific range. | |
85 | * | |
86 | * range A numerical range [start,end) within the object. Defaults to | |
87 | * the full size of the file. | |
88 | * | |
89 | * object A string describing the logical location of the object. For | |
90 | * files and directories (currently the only supported types), | |
91 | * this is the path of the object on disk. | |
92 | * | |
93 | * This is translated, via libzpool, into the following internal representation: | |
94 | * | |
95 | * <type,objset,object,level,range> | |
96 | * | |
97 | * These types should be self-explanatory. This tuple is then passed to the | |
98 | * kernel via a special ioctl() to initiate fault injection for the given | |
99 | * object. Note that 'type' is not strictly necessary for fault injection, but | |
100 | * is used when translating existing faults into a human-readable string. | |
101 | * | |
102 | * | |
103 | * The command itself takes one of the forms: | |
104 | * | |
105 | * zinject | |
106 | * zinject <-a | -u pool> | |
107 | * zinject -c <id|all> | |
108 | * zinject [-q] <-t type> [-f freq] [-u] [-a] [-m] [-e errno] [-l level] | |
109 | * [-r range] <object> | |
110 | * zinject [-f freq] [-a] [-m] [-u] -b objset:object:level:start:end pool | |
111 | * | |
112 | * With no arguments, the command prints all currently registered injection | |
113 | * handlers, with their numeric identifiers. | |
114 | * | |
115 | * The '-c' option will clear the given handler, or all handlers if 'all' is | |
116 | * specified. | |
117 | * | |
118 | * The '-e' option takes a string describing the errno to simulate. This must | |
c3bd3fb4 TC |
119 | * be one of 'io', 'checksum', 'decompress', or 'decrypt'. In most cases this |
120 | * will result in the same behavior, but RAID-Z will produce a different set of | |
121 | * ereports for this situation. | |
34dc7c2f BB |
122 | * |
123 | * The '-a', '-u', and '-m' flags toggle internal flush behavior. If '-a' is | |
124 | * specified, then the ARC cache is flushed appropriately. If '-u' is | |
125 | * specified, then the underlying SPA is unloaded. Either of these flags can be | |
126 | * specified independently of any other handlers. The '-m' flag automatically | |
127 | * does an unmount and remount of the underlying dataset to aid in flushing the | |
128 | * cache. | |
129 | * | |
130 | * The '-f' flag controls the frequency of errors injected, expressed as a | |
0241e491 | 131 | * real number percentage between 0.0001 and 100. The default is 100. |
34dc7c2f BB |
132 | * |
133 | * The this form is responsible for actually injecting the handler into the | |
134 | * framework. It takes the arguments described above, translates them to the | |
135 | * internal tuple using libzpool, and then issues an ioctl() to register the | |
136 | * handler. | |
137 | * | |
138 | * The final form can target a specific bookmark, regardless of whether a | |
139 | * human-readable interface has been designed. It allows developers to specify | |
140 | * a particular block by number. | |
141 | */ | |
142 | ||
143 | #include <errno.h> | |
144 | #include <fcntl.h> | |
145 | #include <stdio.h> | |
146 | #include <stdlib.h> | |
d465fc58 | 147 | #include <string.h> |
34dc7c2f BB |
148 | #include <strings.h> |
149 | #include <unistd.h> | |
150 | ||
151 | #include <sys/fs/zfs.h> | |
152 | #include <sys/mount.h> | |
153 | ||
154 | #include <libzfs.h> | |
155 | ||
156 | #undef verify /* both libzfs.h and zfs_context.h want to define this */ | |
157 | ||
158 | #include "zinject.h" | |
159 | ||
160 | libzfs_handle_t *g_zfs; | |
161 | int zfs_fd; | |
162 | ||
d465fc58 | 163 | static const char *const errtable[TYPE_INVAL] = { |
34dc7c2f BB |
164 | "data", |
165 | "dnode", | |
166 | "mos", | |
167 | "mosdir", | |
168 | "metaslab", | |
169 | "config", | |
428870ff | 170 | "bpobj", |
34dc7c2f | 171 | "spacemap", |
b128c09f BB |
172 | "errlog", |
173 | "uber", | |
428870ff BB |
174 | "nvlist", |
175 | "pad1", | |
176 | "pad2" | |
34dc7c2f BB |
177 | }; |
178 | ||
179 | static err_type_t | |
180 | name_to_type(const char *arg) | |
181 | { | |
182 | int i; | |
183 | for (i = 0; i < TYPE_INVAL; i++) | |
184 | if (strcmp(errtable[i], arg) == 0) | |
185 | return (i); | |
186 | ||
187 | return (TYPE_INVAL); | |
188 | } | |
189 | ||
190 | static const char * | |
191 | type_to_name(uint64_t type) | |
192 | { | |
193 | switch (type) { | |
194 | case DMU_OT_OBJECT_DIRECTORY: | |
195 | return ("mosdir"); | |
196 | case DMU_OT_OBJECT_ARRAY: | |
197 | return ("metaslab"); | |
198 | case DMU_OT_PACKED_NVLIST: | |
199 | return ("config"); | |
428870ff BB |
200 | case DMU_OT_BPOBJ: |
201 | return ("bpobj"); | |
34dc7c2f BB |
202 | case DMU_OT_SPACE_MAP: |
203 | return ("spacemap"); | |
204 | case DMU_OT_ERROR_LOG: | |
205 | return ("errlog"); | |
206 | default: | |
207 | return ("-"); | |
208 | } | |
209 | } | |
210 | ||
211 | ||
212 | /* | |
213 | * Print usage message. | |
214 | */ | |
215 | void | |
216 | usage(void) | |
217 | { | |
218 | (void) printf( | |
219 | "usage:\n" | |
220 | "\n" | |
221 | "\tzinject\n" | |
222 | "\n" | |
223 | "\t\tList all active injection records.\n" | |
224 | "\n" | |
225 | "\tzinject -c <id|all>\n" | |
226 | "\n" | |
227 | "\t\tClear the particular record (if given a numeric ID), or\n" | |
2627e752 | 228 | "\t\tall records if 'all' is specified.\n" |
34dc7c2f | 229 | "\n" |
428870ff BB |
230 | "\tzinject -p <function name> pool\n" |
231 | "\t\tInject a panic fault at the specified function. Only \n" | |
232 | "\t\tfunctions which call spa_vdev_config_exit(), or \n" | |
233 | "\t\tspa_vdev_exit() will trigger a panic.\n" | |
234 | "\n" | |
235 | "\tzinject -d device [-e errno] [-L <nvlist|uber|pad1|pad2>] [-F]\n" | |
d977122d | 236 | "\t\t[-T <read|write|free|claim|all>] [-f frequency] pool\n\n" |
b128c09f | 237 | "\t\tInject a fault into a particular device or the device's\n" |
428870ff BB |
238 | "\t\tlabel. Label injection can either be 'nvlist', 'uber',\n " |
239 | "\t\t'pad1', or 'pad2'.\n" | |
d977122d DB |
240 | "\t\t'errno' can be 'nxio' (the default), 'io', 'dtl', or\n" |
241 | "\t\t'corrupt' (bit flip).\n" | |
0241e491 DB |
242 | "\t\t'frequency' is a value between 0.0001 and 100.0 that limits\n" |
243 | "\t\tdevice error injection to a percentage of the IOs.\n" | |
34dc7c2f | 244 | "\n" |
cc92e9d0 GW |
245 | "\tzinject -d device -A <degrade|fault> -D <delay secs> pool\n" |
246 | "\t\tPerform a specific action on a particular device.\n" | |
428870ff | 247 | "\n" |
26ef0cc7 TH |
248 | "\tzinject -d device -D latency:lanes pool\n" |
249 | "\n" | |
250 | "\t\tAdd an artificial delay to IO requests on a particular\n" | |
251 | "\t\tdevice, such that the requests take a minimum of 'latency'\n" | |
252 | "\t\tmilliseconds to complete. Each delay has an associated\n" | |
253 | "\t\tnumber of 'lanes' which defines the number of concurrent\n" | |
254 | "\t\tIO requests that can be processed.\n" | |
255 | "\n" | |
256 | "\t\tFor example, with a single lane delay of 10 ms (-D 10:1),\n" | |
257 | "\t\tthe device will only be able to service a single IO request\n" | |
258 | "\t\tat a time with each request taking 10 ms to complete. So,\n" | |
259 | "\t\tif only a single request is submitted every 10 ms, the\n" | |
260 | "\t\taverage latency will be 10 ms; but if more than one request\n" | |
261 | "\t\tis submitted every 10 ms, the average latency will be more\n" | |
262 | "\t\tthan 10 ms.\n" | |
263 | "\n" | |
264 | "\t\tSimilarly, if a delay of 10 ms is specified to have two\n" | |
265 | "\t\tlanes (-D 10:2), then the device will be able to service\n" | |
266 | "\t\ttwo requests at a time, each with a minimum latency of\n" | |
267 | "\t\t10 ms. So, if two requests are submitted every 10 ms, then\n" | |
268 | "\t\tthe average latency will be 10 ms; but if more than two\n" | |
269 | "\t\trequests are submitted every 10 ms, the average latency\n" | |
270 | "\t\twill be more than 10 ms.\n" | |
271 | "\n" | |
272 | "\t\tAlso note, these delays are additive. So two invocations\n" | |
273 | "\t\tof '-D 10:1', is roughly equivalent to a single invocation\n" | |
274 | "\t\tof '-D 10:2'. This also means, one can specify multiple\n" | |
275 | "\t\tlanes with differing target latencies. For example, an\n" | |
276 | "\t\tinvocation of '-D 10:1' followed by '-D 25:2' will\n" | |
277 | "\t\tcreate 3 lanes on the device; one lane with a latency\n" | |
278 | "\t\tof 10 ms and two lanes with a 25 ms latency.\n" | |
279 | "\n" | |
428870ff BB |
280 | "\tzinject -I [-s <seconds> | -g <txgs>] pool\n" |
281 | "\t\tCause the pool to stop writing blocks yet not\n" | |
282 | "\t\treport errors for a duration. Simulates buggy hardware\n" | |
283 | "\t\tthat fails to honor cache flush requests.\n" | |
284 | "\t\tDefault duration is 30 seconds. The machine is panicked\n" | |
285 | "\t\tat the end of the duration.\n" | |
286 | "\n" | |
34dc7c2f BB |
287 | "\tzinject -b objset:object:level:blkid pool\n" |
288 | "\n" | |
289 | "\t\tInject an error into pool 'pool' with the numeric bookmark\n" | |
290 | "\t\tspecified by the remaining tuple. Each number is in\n" | |
4e33ba4c | 291 | "\t\thexadecimal, and only one block can be specified.\n" |
34dc7c2f | 292 | "\n" |
ab7615d9 TC |
293 | "\tzinject [-q] <-t type> [-C dvas] [-e errno] [-l level]\n" |
294 | "\t\t[-r range] [-a] [-m] [-u] [-f freq] <object>\n" | |
34dc7c2f BB |
295 | "\n" |
296 | "\t\tInject an error into the object specified by the '-t' option\n" | |
297 | "\t\tand the object descriptor. The 'object' parameter is\n" | |
2627e752 | 298 | "\t\tinterpreted depending on the '-t' option.\n" |
34dc7c2f BB |
299 | "\n" |
300 | "\t\t-q\tQuiet mode. Only print out the handler number added.\n" | |
be9a5c35 | 301 | "\t\t-e\tInject a specific error. Must be one of 'io',\n" |
ab7615d9 TC |
302 | "\t\t\t'checksum', 'decompress', or 'decrypt'. Default is 'io'.\n" |
303 | "\t\t-C\tInject the given error only into specific DVAs. The\n" | |
304 | "\t\t\tDVAs should be specified as a list of 0-indexed DVAs\n" | |
305 | "\t\t\tseparated by commas (ex. '0,2').\n" | |
34dc7c2f BB |
306 | "\t\t-l\tInject error at a particular block level. Default is " |
307 | "0.\n" | |
308 | "\t\t-m\tAutomatically remount underlying filesystem.\n" | |
309 | "\t\t-r\tInject error over a particular logical range of an\n" | |
310 | "\t\t\tobject. Will be translated to the appropriate blkid\n" | |
311 | "\t\t\trange according to the object's properties.\n" | |
312 | "\t\t-a\tFlush the ARC cache. Can be specified without any\n" | |
313 | "\t\t\tassociated object.\n" | |
314 | "\t\t-u\tUnload the associated pool. Can be specified with only\n" | |
315 | "\t\t\ta pool object.\n" | |
316 | "\t\t-f\tOnly inject errors a fraction of the time. Expressed as\n" | |
0241e491 | 317 | "\t\t\ta percentage between 0.0001 and 100.\n" |
34dc7c2f BB |
318 | "\n" |
319 | "\t-t data\t\tInject an error into the plain file contents of a\n" | |
320 | "\t\t\tfile. The object must be specified as a complete path\n" | |
321 | "\t\t\tto a file on a ZFS filesystem.\n" | |
322 | "\n" | |
323 | "\t-t dnode\tInject an error into the metadnode in the block\n" | |
324 | "\t\t\tcorresponding to the dnode for a file or directory. The\n" | |
325 | "\t\t\t'-r' option is incompatible with this mode. The object\n" | |
326 | "\t\t\tis specified as a complete path to a file or directory\n" | |
327 | "\t\t\ton a ZFS filesystem.\n" | |
328 | "\n" | |
329 | "\t-t <mos>\tInject errors into the MOS for objects of the given\n" | |
428870ff | 330 | "\t\t\ttype. Valid types are: mos, mosdir, config, bpobj,\n" |
34dc7c2f BB |
331 | "\t\t\tspacemap, metaslab, errlog. The only valid <object> is\n" |
332 | "\t\t\tthe poolname.\n"); | |
333 | } | |
334 | ||
335 | static int | |
336 | iter_handlers(int (*func)(int, const char *, zinject_record_t *, void *), | |
337 | void *data) | |
338 | { | |
d3773fda | 339 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
340 | int ret; |
341 | ||
24cf9f4e | 342 | while (zfs_ioctl(g_zfs, ZFS_IOC_INJECT_LIST_NEXT, &zc) == 0) |
34dc7c2f BB |
343 | if ((ret = func((int)zc.zc_guid, zc.zc_name, |
344 | &zc.zc_inject_record, data)) != 0) | |
345 | return (ret); | |
346 | ||
428870ff BB |
347 | if (errno != ENOENT) { |
348 | (void) fprintf(stderr, "Unable to list handlers: %s\n", | |
349 | strerror(errno)); | |
350 | return (-1); | |
351 | } | |
352 | ||
34dc7c2f BB |
353 | return (0); |
354 | } | |
355 | ||
356 | static int | |
357 | print_data_handler(int id, const char *pool, zinject_record_t *record, | |
358 | void *data) | |
359 | { | |
360 | int *count = data; | |
361 | ||
428870ff | 362 | if (record->zi_guid != 0 || record->zi_func[0] != '\0') |
34dc7c2f BB |
363 | return (0); |
364 | ||
365 | if (*count == 0) { | |
ab7615d9 TC |
366 | (void) printf("%3s %-15s %-6s %-6s %-8s %3s %-4s " |
367 | "%-15s\n", "ID", "POOL", "OBJSET", "OBJECT", "TYPE", | |
368 | "LVL", "DVAs", "RANGE"); | |
34dc7c2f | 369 | (void) printf("--- --------------- ------ " |
ab7615d9 | 370 | "------ -------- --- ---- ---------------\n"); |
34dc7c2f BB |
371 | } |
372 | ||
373 | *count += 1; | |
374 | ||
ab7615d9 TC |
375 | (void) printf("%3d %-15s %-6llu %-6llu %-8s %-3d 0x%02x ", |
376 | id, pool, (u_longlong_t)record->zi_objset, | |
377 | (u_longlong_t)record->zi_object, type_to_name(record->zi_type), | |
378 | record->zi_level, record->zi_dvas); | |
379 | ||
34dc7c2f BB |
380 | |
381 | if (record->zi_start == 0 && | |
382 | record->zi_end == -1ULL) | |
383 | (void) printf("all\n"); | |
384 | else | |
385 | (void) printf("[%llu, %llu]\n", (u_longlong_t)record->zi_start, | |
386 | (u_longlong_t)record->zi_end); | |
387 | ||
388 | return (0); | |
389 | } | |
390 | ||
391 | static int | |
392 | print_device_handler(int id, const char *pool, zinject_record_t *record, | |
393 | void *data) | |
394 | { | |
395 | int *count = data; | |
396 | ||
428870ff | 397 | if (record->zi_guid == 0 || record->zi_func[0] != '\0') |
34dc7c2f BB |
398 | return (0); |
399 | ||
26ef0cc7 TH |
400 | if (record->zi_cmd == ZINJECT_DELAY_IO) |
401 | return (0); | |
402 | ||
34dc7c2f BB |
403 | if (*count == 0) { |
404 | (void) printf("%3s %-15s %s\n", "ID", "POOL", "GUID"); | |
405 | (void) printf("--- --------------- ----------------\n"); | |
406 | } | |
407 | ||
408 | *count += 1; | |
409 | ||
410 | (void) printf("%3d %-15s %llx\n", id, pool, | |
411 | (u_longlong_t)record->zi_guid); | |
412 | ||
413 | return (0); | |
414 | } | |
415 | ||
26ef0cc7 TH |
416 | static int |
417 | print_delay_handler(int id, const char *pool, zinject_record_t *record, | |
418 | void *data) | |
419 | { | |
420 | int *count = data; | |
421 | ||
422 | if (record->zi_guid == 0 || record->zi_func[0] != '\0') | |
423 | return (0); | |
424 | ||
425 | if (record->zi_cmd != ZINJECT_DELAY_IO) | |
426 | return (0); | |
427 | ||
428 | if (*count == 0) { | |
429 | (void) printf("%3s %-15s %-15s %-15s %s\n", | |
430 | "ID", "POOL", "DELAY (ms)", "LANES", "GUID"); | |
431 | (void) printf("--- --------------- --------------- " | |
432 | "--------------- ----------------\n"); | |
433 | } | |
434 | ||
435 | *count += 1; | |
436 | ||
437 | (void) printf("%3d %-15s %-15llu %-15llu %llx\n", id, pool, | |
438 | (u_longlong_t)NSEC2MSEC(record->zi_timer), | |
439 | (u_longlong_t)record->zi_nlanes, | |
440 | (u_longlong_t)record->zi_guid); | |
441 | ||
442 | return (0); | |
443 | } | |
444 | ||
428870ff BB |
445 | static int |
446 | print_panic_handler(int id, const char *pool, zinject_record_t *record, | |
447 | void *data) | |
448 | { | |
449 | int *count = data; | |
450 | ||
451 | if (record->zi_func[0] == '\0') | |
452 | return (0); | |
453 | ||
454 | if (*count == 0) { | |
455 | (void) printf("%3s %-15s %s\n", "ID", "POOL", "FUNCTION"); | |
456 | (void) printf("--- --------------- ----------------\n"); | |
457 | } | |
458 | ||
459 | *count += 1; | |
460 | ||
461 | (void) printf("%3d %-15s %s\n", id, pool, record->zi_func); | |
462 | ||
463 | return (0); | |
464 | } | |
465 | ||
34dc7c2f BB |
466 | /* |
467 | * Print all registered error handlers. Returns the number of handlers | |
468 | * registered. | |
469 | */ | |
470 | static int | |
471 | print_all_handlers(void) | |
472 | { | |
572e2857 | 473 | int count = 0, total = 0; |
34dc7c2f BB |
474 | |
475 | (void) iter_handlers(print_device_handler, &count); | |
572e2857 BB |
476 | if (count > 0) { |
477 | total += count; | |
478 | (void) printf("\n"); | |
479 | count = 0; | |
480 | } | |
481 | ||
26ef0cc7 TH |
482 | (void) iter_handlers(print_delay_handler, &count); |
483 | if (count > 0) { | |
484 | total += count; | |
485 | (void) printf("\n"); | |
486 | count = 0; | |
487 | } | |
488 | ||
34dc7c2f | 489 | (void) iter_handlers(print_data_handler, &count); |
572e2857 BB |
490 | if (count > 0) { |
491 | total += count; | |
492 | (void) printf("\n"); | |
493 | count = 0; | |
494 | } | |
495 | ||
428870ff | 496 | (void) iter_handlers(print_panic_handler, &count); |
34dc7c2f | 497 | |
572e2857 | 498 | return (count + total); |
34dc7c2f BB |
499 | } |
500 | ||
34dc7c2f BB |
501 | static int |
502 | cancel_one_handler(int id, const char *pool, zinject_record_t *record, | |
503 | void *data) | |
504 | { | |
964e6a49 | 505 | (void) pool, (void) record, (void) data; |
d3773fda | 506 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
507 | |
508 | zc.zc_guid = (uint64_t)id; | |
509 | ||
24cf9f4e | 510 | if (zfs_ioctl(g_zfs, ZFS_IOC_CLEAR_FAULT, &zc) != 0) { |
34dc7c2f BB |
511 | (void) fprintf(stderr, "failed to remove handler %d: %s\n", |
512 | id, strerror(errno)); | |
513 | return (1); | |
514 | } | |
515 | ||
516 | return (0); | |
517 | } | |
518 | ||
519 | /* | |
520 | * Remove all fault injection handlers. | |
521 | */ | |
522 | static int | |
523 | cancel_all_handlers(void) | |
524 | { | |
525 | int ret = iter_handlers(cancel_one_handler, NULL); | |
526 | ||
428870ff BB |
527 | if (ret == 0) |
528 | (void) printf("removed all registered handlers\n"); | |
34dc7c2f BB |
529 | |
530 | return (ret); | |
531 | } | |
532 | ||
533 | /* | |
534 | * Remove a specific fault injection handler. | |
535 | */ | |
536 | static int | |
537 | cancel_handler(int id) | |
538 | { | |
d3773fda | 539 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
540 | |
541 | zc.zc_guid = (uint64_t)id; | |
542 | ||
24cf9f4e | 543 | if (zfs_ioctl(g_zfs, ZFS_IOC_CLEAR_FAULT, &zc) != 0) { |
34dc7c2f BB |
544 | (void) fprintf(stderr, "failed to remove handler %d: %s\n", |
545 | id, strerror(errno)); | |
546 | return (1); | |
547 | } | |
548 | ||
549 | (void) printf("removed handler %d\n", id); | |
550 | ||
551 | return (0); | |
552 | } | |
553 | ||
554 | /* | |
555 | * Register a new fault injection handler. | |
556 | */ | |
557 | static int | |
558 | register_handler(const char *pool, int flags, zinject_record_t *record, | |
559 | int quiet) | |
560 | { | |
d3773fda | 561 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f | 562 | |
0b78aeae | 563 | (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); |
34dc7c2f BB |
564 | zc.zc_inject_record = *record; |
565 | zc.zc_guid = flags; | |
566 | ||
24cf9f4e | 567 | if (zfs_ioctl(g_zfs, ZFS_IOC_INJECT_FAULT, &zc) != 0) { |
34dc7c2f | 568 | (void) fprintf(stderr, "failed to add handler: %s\n", |
e89f1295 | 569 | errno == EDOM ? "block level exceeds max level of object" : |
34dc7c2f BB |
570 | strerror(errno)); |
571 | return (1); | |
572 | } | |
573 | ||
574 | if (flags & ZINJECT_NULL) | |
575 | return (0); | |
576 | ||
577 | if (quiet) { | |
578 | (void) printf("%llu\n", (u_longlong_t)zc.zc_guid); | |
579 | } else { | |
580 | (void) printf("Added handler %llu with the following " | |
581 | "properties:\n", (u_longlong_t)zc.zc_guid); | |
582 | (void) printf(" pool: %s\n", pool); | |
583 | if (record->zi_guid) { | |
584 | (void) printf(" vdev: %llx\n", | |
585 | (u_longlong_t)record->zi_guid); | |
428870ff BB |
586 | } else if (record->zi_func[0] != '\0') { |
587 | (void) printf(" panic function: %s\n", | |
588 | record->zi_func); | |
589 | } else if (record->zi_duration > 0) { | |
590 | (void) printf(" time: %lld seconds\n", | |
591 | (u_longlong_t)record->zi_duration); | |
592 | } else if (record->zi_duration < 0) { | |
593 | (void) printf(" txgs: %lld \n", | |
594 | (u_longlong_t)-record->zi_duration); | |
34dc7c2f BB |
595 | } else { |
596 | (void) printf("objset: %llu\n", | |
597 | (u_longlong_t)record->zi_objset); | |
598 | (void) printf("object: %llu\n", | |
599 | (u_longlong_t)record->zi_object); | |
600 | (void) printf(" type: %llu\n", | |
601 | (u_longlong_t)record->zi_type); | |
602 | (void) printf(" level: %d\n", record->zi_level); | |
603 | if (record->zi_start == 0 && | |
604 | record->zi_end == -1ULL) | |
605 | (void) printf(" range: all\n"); | |
606 | else | |
607 | (void) printf(" range: [%llu, %llu)\n", | |
608 | (u_longlong_t)record->zi_start, | |
609 | (u_longlong_t)record->zi_end); | |
ab7615d9 | 610 | (void) printf(" dvas: 0x%x\n", record->zi_dvas); |
34dc7c2f BB |
611 | } |
612 | } | |
613 | ||
614 | return (0); | |
615 | } | |
616 | ||
65c7cc49 | 617 | static int |
428870ff BB |
618 | perform_action(const char *pool, zinject_record_t *record, int cmd) |
619 | { | |
d3773fda | 620 | zfs_cmd_t zc = {"\0"}; |
428870ff BB |
621 | |
622 | ASSERT(cmd == VDEV_STATE_DEGRADED || cmd == VDEV_STATE_FAULTED); | |
623 | (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); | |
624 | zc.zc_guid = record->zi_guid; | |
625 | zc.zc_cookie = cmd; | |
626 | ||
24cf9f4e | 627 | if (zfs_ioctl(g_zfs, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) |
428870ff BB |
628 | return (0); |
629 | ||
630 | return (1); | |
631 | } | |
632 | ||
26ef0cc7 TH |
633 | static int |
634 | parse_delay(char *str, uint64_t *delay, uint64_t *nlanes) | |
635 | { | |
636 | unsigned long scan_delay; | |
637 | unsigned long scan_nlanes; | |
638 | ||
639 | if (sscanf(str, "%lu:%lu", &scan_delay, &scan_nlanes) != 2) | |
640 | return (1); | |
641 | ||
642 | /* | |
643 | * We explicitly disallow a delay of zero here, because we key | |
644 | * off this value being non-zero in translate_device(), to | |
645 | * determine if the fault is a ZINJECT_DELAY_IO fault or not. | |
646 | */ | |
647 | if (scan_delay == 0) | |
648 | return (1); | |
649 | ||
650 | /* | |
651 | * The units for the CLI delay parameter is milliseconds, but | |
652 | * the data passed to the kernel is interpreted as nanoseconds. | |
653 | * Thus we scale the milliseconds to nanoseconds here, and this | |
654 | * nanosecond value is used to pass the delay to the kernel. | |
655 | */ | |
656 | *delay = MSEC2NSEC(scan_delay); | |
657 | *nlanes = scan_nlanes; | |
658 | ||
659 | return (0); | |
660 | } | |
661 | ||
0241e491 DB |
662 | static int |
663 | parse_frequency(const char *str, uint32_t *percent) | |
664 | { | |
665 | double val; | |
666 | char *post; | |
667 | ||
668 | val = strtod(str, &post); | |
669 | if (post == NULL || *post != '\0') | |
670 | return (EINVAL); | |
671 | ||
672 | /* valid range is [0.0001, 100.0] */ | |
673 | val /= 100.0f; | |
674 | if (val < 0.000001f || val > 1.0f) | |
675 | return (ERANGE); | |
676 | ||
677 | /* convert to an integer for use by kernel */ | |
678 | *percent = ((uint32_t)(val * ZI_PERCENTAGE_MAX)); | |
679 | ||
680 | return (0); | |
681 | } | |
682 | ||
ab7615d9 TC |
683 | /* |
684 | * This function converts a string specifier for DVAs into a bit mask. | |
685 | * The dva's provided by the user should be 0 indexed and separated by | |
686 | * a comma. For example: | |
687 | * "1" -> 0b0010 (0x2) | |
688 | * "0,1" -> 0b0011 (0x3) | |
689 | * "0,1,2" -> 0b0111 (0x7) | |
690 | */ | |
691 | static int | |
692 | parse_dvas(const char *str, uint32_t *dvas_out) | |
693 | { | |
694 | const char *c = str; | |
695 | uint32_t mask = 0; | |
696 | boolean_t need_delim = B_FALSE; | |
697 | ||
698 | /* max string length is 5 ("0,1,2") */ | |
699 | if (strlen(str) > 5 || strlen(str) == 0) | |
700 | return (EINVAL); | |
701 | ||
702 | while (*c != '\0') { | |
703 | switch (*c) { | |
704 | case '0': | |
705 | case '1': | |
706 | case '2': | |
707 | /* check for pipe between DVAs */ | |
708 | if (need_delim) | |
709 | return (EINVAL); | |
710 | ||
711 | /* check if this DVA has been set already */ | |
712 | if (mask & (1 << ((*c) - '0'))) | |
713 | return (EINVAL); | |
714 | ||
715 | mask |= (1 << ((*c) - '0')); | |
716 | need_delim = B_TRUE; | |
717 | break; | |
718 | case ',': | |
719 | need_delim = B_FALSE; | |
720 | break; | |
721 | default: | |
722 | /* check for invalid character */ | |
723 | return (EINVAL); | |
724 | } | |
725 | c++; | |
726 | } | |
727 | ||
728 | /* check for dangling delimiter */ | |
729 | if (!need_delim) | |
730 | return (EINVAL); | |
731 | ||
732 | *dvas_out = mask; | |
733 | return (0); | |
734 | } | |
735 | ||
34dc7c2f BB |
736 | int |
737 | main(int argc, char **argv) | |
738 | { | |
739 | int c; | |
740 | char *range = NULL; | |
741 | char *cancel = NULL; | |
742 | char *end; | |
743 | char *raw = NULL; | |
744 | char *device = NULL; | |
745 | int level = 0; | |
746 | int quiet = 0; | |
747 | int error = 0; | |
748 | int domount = 0; | |
428870ff BB |
749 | int io_type = ZIO_TYPES; |
750 | int action = VDEV_STATE_UNKNOWN; | |
34dc7c2f | 751 | err_type_t type = TYPE_INVAL; |
b128c09f | 752 | err_type_t label = TYPE_INVAL; |
34dc7c2f | 753 | zinject_record_t record = { 0 }; |
a64f903b GN |
754 | char pool[MAXNAMELEN] = ""; |
755 | char dataset[MAXNAMELEN] = ""; | |
149e873a | 756 | zfs_handle_t *zhp = NULL; |
428870ff BB |
757 | int nowrites = 0; |
758 | int dur_txg = 0; | |
759 | int dur_secs = 0; | |
34dc7c2f BB |
760 | int ret; |
761 | int flags = 0; | |
ab7615d9 | 762 | uint32_t dvas = 0; |
34dc7c2f | 763 | |
65037d9b | 764 | if ((g_zfs = libzfs_init()) == NULL) { |
afc8f0a6 | 765 | (void) fprintf(stderr, "%s\n", libzfs_error_init(errno)); |
937210a5 | 766 | return (1); |
65037d9b | 767 | } |
937210a5 BB |
768 | |
769 | libzfs_print_on_error(g_zfs, B_TRUE); | |
770 | ||
771 | if ((zfs_fd = open(ZFS_DEV, O_RDWR)) < 0) { | |
772 | (void) fprintf(stderr, "failed to open ZFS device\n"); | |
5df39c1e | 773 | libzfs_fini(g_zfs); |
937210a5 BB |
774 | return (1); |
775 | } | |
776 | ||
34dc7c2f BB |
777 | if (argc == 1) { |
778 | /* | |
779 | * No arguments. Print the available handlers. If there are no | |
780 | * available handlers, direct the user to '-h' for help | |
781 | * information. | |
782 | */ | |
783 | if (print_all_handlers() == 0) { | |
784 | (void) printf("No handlers registered.\n"); | |
785 | (void) printf("Run 'zinject -h' for usage " | |
786 | "information.\n"); | |
787 | } | |
5df39c1e | 788 | libzfs_fini(g_zfs); |
34dc7c2f BB |
789 | return (0); |
790 | } | |
791 | ||
428870ff | 792 | while ((c = getopt(argc, argv, |
ab7615d9 | 793 | ":aA:b:C:d:D:f:Fg:qhIc:t:T:l:mr:s:e:uL:p:")) != -1) { |
34dc7c2f BB |
794 | switch (c) { |
795 | case 'a': | |
796 | flags |= ZINJECT_FLUSH_ARC; | |
797 | break; | |
428870ff BB |
798 | case 'A': |
799 | if (strcasecmp(optarg, "degrade") == 0) { | |
800 | action = VDEV_STATE_DEGRADED; | |
801 | } else if (strcasecmp(optarg, "fault") == 0) { | |
802 | action = VDEV_STATE_FAULTED; | |
803 | } else { | |
804 | (void) fprintf(stderr, "invalid action '%s': " | |
805 | "must be 'degrade' or 'fault'\n", optarg); | |
806 | usage(); | |
5df39c1e | 807 | libzfs_fini(g_zfs); |
428870ff BB |
808 | return (1); |
809 | } | |
810 | break; | |
34dc7c2f BB |
811 | case 'b': |
812 | raw = optarg; | |
813 | break; | |
814 | case 'c': | |
815 | cancel = optarg; | |
816 | break; | |
ab7615d9 TC |
817 | case 'C': |
818 | ret = parse_dvas(optarg, &dvas); | |
819 | if (ret != 0) { | |
820 | (void) fprintf(stderr, "invalid DVA list '%s': " | |
821 | "DVAs should be 0 indexed and separated by " | |
822 | "commas.\n", optarg); | |
823 | usage(); | |
824 | libzfs_fini(g_zfs); | |
825 | return (1); | |
826 | } | |
827 | break; | |
34dc7c2f BB |
828 | case 'd': |
829 | device = optarg; | |
830 | break; | |
cc92e9d0 GW |
831 | case 'D': |
832 | errno = 0; | |
26ef0cc7 TH |
833 | ret = parse_delay(optarg, &record.zi_timer, |
834 | &record.zi_nlanes); | |
835 | if (ret != 0) { | |
836 | ||
cc92e9d0 GW |
837 | (void) fprintf(stderr, "invalid i/o delay " |
838 | "value: '%s'\n", optarg); | |
839 | usage(); | |
5df39c1e | 840 | libzfs_fini(g_zfs); |
cc92e9d0 GW |
841 | return (1); |
842 | } | |
843 | break; | |
34dc7c2f BB |
844 | case 'e': |
845 | if (strcasecmp(optarg, "io") == 0) { | |
846 | error = EIO; | |
847 | } else if (strcasecmp(optarg, "checksum") == 0) { | |
848 | error = ECKSUM; | |
c3bd3fb4 TC |
849 | } else if (strcasecmp(optarg, "decompress") == 0) { |
850 | error = EINVAL; | |
be9a5c35 TC |
851 | } else if (strcasecmp(optarg, "decrypt") == 0) { |
852 | error = EACCES; | |
34dc7c2f BB |
853 | } else if (strcasecmp(optarg, "nxio") == 0) { |
854 | error = ENXIO; | |
572e2857 BB |
855 | } else if (strcasecmp(optarg, "dtl") == 0) { |
856 | error = ECHILD; | |
d977122d DB |
857 | } else if (strcasecmp(optarg, "corrupt") == 0) { |
858 | error = EILSEQ; | |
34dc7c2f BB |
859 | } else { |
860 | (void) fprintf(stderr, "invalid error type " | |
861 | "'%s': must be 'io', 'checksum' or " | |
862 | "'nxio'\n", optarg); | |
863 | usage(); | |
5df39c1e | 864 | libzfs_fini(g_zfs); |
34dc7c2f BB |
865 | return (1); |
866 | } | |
867 | break; | |
868 | case 'f': | |
0241e491 DB |
869 | ret = parse_frequency(optarg, &record.zi_freq); |
870 | if (ret != 0) { | |
871 | (void) fprintf(stderr, "%sfrequency value must " | |
872 | "be in the range [0.0001, 100.0]\n", | |
873 | ret == EINVAL ? "invalid value: " : | |
874 | ret == ERANGE ? "out of range: " : ""); | |
5df39c1e | 875 | libzfs_fini(g_zfs); |
34dc7c2f BB |
876 | return (1); |
877 | } | |
878 | break; | |
9babb374 BB |
879 | case 'F': |
880 | record.zi_failfast = B_TRUE; | |
881 | break; | |
428870ff BB |
882 | case 'g': |
883 | dur_txg = 1; | |
884 | record.zi_duration = (int)strtol(optarg, &end, 10); | |
885 | if (record.zi_duration <= 0 || *end != '\0') { | |
886 | (void) fprintf(stderr, "invalid duration '%s': " | |
887 | "must be a positive integer\n", optarg); | |
888 | usage(); | |
5df39c1e | 889 | libzfs_fini(g_zfs); |
428870ff BB |
890 | return (1); |
891 | } | |
892 | /* store duration of txgs as its negative */ | |
893 | record.zi_duration *= -1; | |
894 | break; | |
34dc7c2f BB |
895 | case 'h': |
896 | usage(); | |
5df39c1e | 897 | libzfs_fini(g_zfs); |
34dc7c2f | 898 | return (0); |
428870ff BB |
899 | case 'I': |
900 | /* default duration, if one hasn't yet been defined */ | |
901 | nowrites = 1; | |
902 | if (dur_secs == 0 && dur_txg == 0) | |
903 | record.zi_duration = 30; | |
904 | break; | |
34dc7c2f BB |
905 | case 'l': |
906 | level = (int)strtol(optarg, &end, 10); | |
907 | if (*end != '\0') { | |
908 | (void) fprintf(stderr, "invalid level '%s': " | |
909 | "must be an integer\n", optarg); | |
910 | usage(); | |
5df39c1e | 911 | libzfs_fini(g_zfs); |
34dc7c2f BB |
912 | return (1); |
913 | } | |
914 | break; | |
915 | case 'm': | |
916 | domount = 1; | |
917 | break; | |
428870ff BB |
918 | case 'p': |
919 | (void) strlcpy(record.zi_func, optarg, | |
920 | sizeof (record.zi_func)); | |
cc92e9d0 | 921 | record.zi_cmd = ZINJECT_PANIC; |
428870ff | 922 | break; |
34dc7c2f BB |
923 | case 'q': |
924 | quiet = 1; | |
925 | break; | |
926 | case 'r': | |
927 | range = optarg; | |
e89f1295 | 928 | flags |= ZINJECT_CALC_RANGE; |
34dc7c2f | 929 | break; |
428870ff BB |
930 | case 's': |
931 | dur_secs = 1; | |
932 | record.zi_duration = (int)strtol(optarg, &end, 10); | |
933 | if (record.zi_duration <= 0 || *end != '\0') { | |
934 | (void) fprintf(stderr, "invalid duration '%s': " | |
935 | "must be a positive integer\n", optarg); | |
936 | usage(); | |
5df39c1e | 937 | libzfs_fini(g_zfs); |
428870ff BB |
938 | return (1); |
939 | } | |
940 | break; | |
941 | case 'T': | |
942 | if (strcasecmp(optarg, "read") == 0) { | |
943 | io_type = ZIO_TYPE_READ; | |
944 | } else if (strcasecmp(optarg, "write") == 0) { | |
945 | io_type = ZIO_TYPE_WRITE; | |
946 | } else if (strcasecmp(optarg, "free") == 0) { | |
947 | io_type = ZIO_TYPE_FREE; | |
948 | } else if (strcasecmp(optarg, "claim") == 0) { | |
949 | io_type = ZIO_TYPE_CLAIM; | |
950 | } else if (strcasecmp(optarg, "all") == 0) { | |
951 | io_type = ZIO_TYPES; | |
952 | } else { | |
953 | (void) fprintf(stderr, "invalid I/O type " | |
954 | "'%s': must be 'read', 'write', 'free', " | |
955 | "'claim' or 'all'\n", optarg); | |
956 | usage(); | |
5df39c1e | 957 | libzfs_fini(g_zfs); |
428870ff BB |
958 | return (1); |
959 | } | |
960 | break; | |
34dc7c2f | 961 | case 't': |
b128c09f BB |
962 | if ((type = name_to_type(optarg)) == TYPE_INVAL && |
963 | !MOS_TYPE(type)) { | |
34dc7c2f BB |
964 | (void) fprintf(stderr, "invalid type '%s'\n", |
965 | optarg); | |
966 | usage(); | |
5df39c1e | 967 | libzfs_fini(g_zfs); |
34dc7c2f BB |
968 | return (1); |
969 | } | |
970 | break; | |
971 | case 'u': | |
972 | flags |= ZINJECT_UNLOAD_SPA; | |
973 | break; | |
b128c09f BB |
974 | case 'L': |
975 | if ((label = name_to_type(optarg)) == TYPE_INVAL && | |
976 | !LABEL_TYPE(type)) { | |
977 | (void) fprintf(stderr, "invalid label type " | |
978 | "'%s'\n", optarg); | |
979 | usage(); | |
5df39c1e | 980 | libzfs_fini(g_zfs); |
b128c09f BB |
981 | return (1); |
982 | } | |
983 | break; | |
34dc7c2f BB |
984 | case ':': |
985 | (void) fprintf(stderr, "option -%c requires an " | |
986 | "operand\n", optopt); | |
987 | usage(); | |
5df39c1e | 988 | libzfs_fini(g_zfs); |
34dc7c2f BB |
989 | return (1); |
990 | case '?': | |
991 | (void) fprintf(stderr, "invalid option '%c'\n", | |
992 | optopt); | |
993 | usage(); | |
5df39c1e | 994 | libzfs_fini(g_zfs); |
34dc7c2f BB |
995 | return (2); |
996 | } | |
997 | } | |
998 | ||
999 | argc -= optind; | |
1000 | argv += optind; | |
1001 | ||
cc92e9d0 GW |
1002 | if (record.zi_duration != 0) |
1003 | record.zi_cmd = ZINJECT_IGNORED_WRITES; | |
1004 | ||
34dc7c2f BB |
1005 | if (cancel != NULL) { |
1006 | /* | |
1007 | * '-c' is invalid with any other options. | |
1008 | */ | |
1009 | if (raw != NULL || range != NULL || type != TYPE_INVAL || | |
0241e491 | 1010 | level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED || |
ab7615d9 | 1011 | record.zi_freq > 0 || dvas != 0) { |
34dc7c2f BB |
1012 | (void) fprintf(stderr, "cancel (-c) incompatible with " |
1013 | "any other options\n"); | |
1014 | usage(); | |
5df39c1e | 1015 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1016 | return (2); |
1017 | } | |
1018 | if (argc != 0) { | |
1019 | (void) fprintf(stderr, "extraneous argument to '-c'\n"); | |
1020 | usage(); | |
5df39c1e | 1021 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1022 | return (2); |
1023 | } | |
1024 | ||
1025 | if (strcmp(cancel, "all") == 0) { | |
1026 | return (cancel_all_handlers()); | |
1027 | } else { | |
1028 | int id = (int)strtol(cancel, &end, 10); | |
1029 | if (*end != '\0') { | |
1030 | (void) fprintf(stderr, "invalid handle id '%s':" | |
1031 | " must be an integer or 'all'\n", cancel); | |
1032 | usage(); | |
5df39c1e | 1033 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1034 | return (1); |
1035 | } | |
1036 | return (cancel_handler(id)); | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | if (device != NULL) { | |
1041 | /* | |
1042 | * Device (-d) injection uses a completely different mechanism | |
1043 | * for doing injection, so handle it separately here. | |
1044 | */ | |
1045 | if (raw != NULL || range != NULL || type != TYPE_INVAL || | |
ab7615d9 TC |
1046 | level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED || |
1047 | dvas != 0) { | |
34dc7c2f BB |
1048 | (void) fprintf(stderr, "device (-d) incompatible with " |
1049 | "data error injection\n"); | |
1050 | usage(); | |
5df39c1e | 1051 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1052 | return (2); |
1053 | } | |
1054 | ||
1055 | if (argc != 1) { | |
1056 | (void) fprintf(stderr, "device (-d) injection requires " | |
1057 | "a single pool name\n"); | |
1058 | usage(); | |
5df39c1e | 1059 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1060 | return (2); |
1061 | } | |
1062 | ||
5df39c1e | 1063 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
1064 | dataset[0] = '\0'; |
1065 | ||
1066 | if (error == ECKSUM) { | |
1067 | (void) fprintf(stderr, "device error type must be " | |
d977122d DB |
1068 | "'io', 'nxio' or 'corrupt'\n"); |
1069 | libzfs_fini(g_zfs); | |
1070 | return (1); | |
1071 | } | |
1072 | ||
1073 | if (error == EILSEQ && | |
1074 | (record.zi_freq == 0 || io_type != ZIO_TYPE_READ)) { | |
1075 | (void) fprintf(stderr, "device corrupt errors require " | |
1076 | "io type read and a frequency value\n"); | |
5df39c1e | 1077 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1078 | return (1); |
1079 | } | |
1080 | ||
428870ff | 1081 | record.zi_iotype = io_type; |
5df39c1e | 1082 | if (translate_device(pool, device, label, &record) != 0) { |
1083 | libzfs_fini(g_zfs); | |
34dc7c2f | 1084 | return (1); |
5df39c1e | 1085 | } |
cbe88229 DB |
1086 | |
1087 | if (record.zi_nlanes) { | |
1088 | switch (io_type) { | |
1089 | case ZIO_TYPE_READ: | |
1090 | case ZIO_TYPE_WRITE: | |
1091 | case ZIO_TYPES: | |
1092 | break; | |
1093 | default: | |
1094 | (void) fprintf(stderr, "I/O type for a delay " | |
1095 | "must be 'read' or 'write'\n"); | |
1096 | usage(); | |
1097 | libzfs_fini(g_zfs); | |
1098 | return (1); | |
1099 | } | |
1100 | } | |
1101 | ||
34dc7c2f BB |
1102 | if (!error) |
1103 | error = ENXIO; | |
428870ff BB |
1104 | |
1105 | if (action != VDEV_STATE_UNKNOWN) | |
1106 | return (perform_action(pool, &record, action)); | |
1107 | ||
34dc7c2f | 1108 | } else if (raw != NULL) { |
428870ff | 1109 | if (range != NULL || type != TYPE_INVAL || level != 0 || |
0241e491 | 1110 | record.zi_cmd != ZINJECT_UNINITIALIZED || |
ab7615d9 | 1111 | record.zi_freq > 0 || dvas != 0) { |
34dc7c2f BB |
1112 | (void) fprintf(stderr, "raw (-b) format with " |
1113 | "any other options\n"); | |
1114 | usage(); | |
5df39c1e | 1115 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1116 | return (2); |
1117 | } | |
1118 | ||
1119 | if (argc != 1) { | |
1120 | (void) fprintf(stderr, "raw (-b) format expects a " | |
1121 | "single pool name\n"); | |
1122 | usage(); | |
5df39c1e | 1123 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1124 | return (2); |
1125 | } | |
1126 | ||
5df39c1e | 1127 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
1128 | dataset[0] = '\0'; |
1129 | ||
1130 | if (error == ENXIO) { | |
1131 | (void) fprintf(stderr, "data error type must be " | |
1132 | "'checksum' or 'io'\n"); | |
5df39c1e | 1133 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1134 | return (1); |
1135 | } | |
1136 | ||
cc92e9d0 | 1137 | record.zi_cmd = ZINJECT_DATA_FAULT; |
5df39c1e | 1138 | if (translate_raw(raw, &record) != 0) { |
1139 | libzfs_fini(g_zfs); | |
34dc7c2f | 1140 | return (1); |
5df39c1e | 1141 | } |
34dc7c2f BB |
1142 | if (!error) |
1143 | error = EIO; | |
cc92e9d0 | 1144 | } else if (record.zi_cmd == ZINJECT_PANIC) { |
428870ff | 1145 | if (raw != NULL || range != NULL || type != TYPE_INVAL || |
ab7615d9 TC |
1146 | level != 0 || device != NULL || record.zi_freq > 0 || |
1147 | dvas != 0) { | |
428870ff BB |
1148 | (void) fprintf(stderr, "panic (-p) incompatible with " |
1149 | "other options\n"); | |
1150 | usage(); | |
5df39c1e | 1151 | libzfs_fini(g_zfs); |
428870ff BB |
1152 | return (2); |
1153 | } | |
1154 | ||
1155 | if (argc < 1 || argc > 2) { | |
1156 | (void) fprintf(stderr, "panic (-p) injection requires " | |
1157 | "a single pool name and an optional id\n"); | |
1158 | usage(); | |
5df39c1e | 1159 | libzfs_fini(g_zfs); |
428870ff BB |
1160 | return (2); |
1161 | } | |
1162 | ||
5df39c1e | 1163 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
428870ff BB |
1164 | if (argv[1] != NULL) |
1165 | record.zi_type = atoi(argv[1]); | |
1166 | dataset[0] = '\0'; | |
cc92e9d0 | 1167 | } else if (record.zi_cmd == ZINJECT_IGNORED_WRITES) { |
ab7615d9 TC |
1168 | if (raw != NULL || range != NULL || type != TYPE_INVAL || |
1169 | level != 0 || record.zi_freq > 0 || dvas != 0) { | |
1170 | (void) fprintf(stderr, "hardware failure (-I) " | |
1171 | "incompatible with other options\n"); | |
1172 | usage(); | |
1173 | libzfs_fini(g_zfs); | |
1174 | return (2); | |
1175 | } | |
1176 | ||
428870ff BB |
1177 | if (nowrites == 0) { |
1178 | (void) fprintf(stderr, "-s or -g meaningless " | |
1179 | "without -I (ignore writes)\n"); | |
1180 | usage(); | |
5df39c1e | 1181 | libzfs_fini(g_zfs); |
428870ff BB |
1182 | return (2); |
1183 | } else if (dur_secs && dur_txg) { | |
1184 | (void) fprintf(stderr, "choose a duration either " | |
1185 | "in seconds (-s) or a number of txgs (-g) " | |
1186 | "but not both\n"); | |
1187 | usage(); | |
5df39c1e | 1188 | libzfs_fini(g_zfs); |
428870ff BB |
1189 | return (2); |
1190 | } else if (argc != 1) { | |
1191 | (void) fprintf(stderr, "ignore writes (-I) " | |
1192 | "injection requires a single pool name\n"); | |
1193 | usage(); | |
5df39c1e | 1194 | libzfs_fini(g_zfs); |
428870ff BB |
1195 | return (2); |
1196 | } | |
1197 | ||
5df39c1e | 1198 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
428870ff | 1199 | dataset[0] = '\0'; |
34dc7c2f BB |
1200 | } else if (type == TYPE_INVAL) { |
1201 | if (flags == 0) { | |
1202 | (void) fprintf(stderr, "at least one of '-b', '-d', " | |
428870ff BB |
1203 | "'-t', '-a', '-p', '-I' or '-u' " |
1204 | "must be specified\n"); | |
34dc7c2f | 1205 | usage(); |
5df39c1e | 1206 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1207 | return (2); |
1208 | } | |
1209 | ||
1210 | if (argc == 1 && (flags & ZINJECT_UNLOAD_SPA)) { | |
5df39c1e | 1211 | (void) strlcpy(pool, argv[0], sizeof (pool)); |
34dc7c2f BB |
1212 | dataset[0] = '\0'; |
1213 | } else if (argc != 0) { | |
1214 | (void) fprintf(stderr, "extraneous argument for " | |
1215 | "'-f'\n"); | |
1216 | usage(); | |
5df39c1e | 1217 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1218 | return (2); |
1219 | } | |
1220 | ||
1221 | flags |= ZINJECT_NULL; | |
1222 | } else { | |
1223 | if (argc != 1) { | |
1224 | (void) fprintf(stderr, "missing object\n"); | |
1225 | usage(); | |
5df39c1e | 1226 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1227 | return (2); |
1228 | } | |
1229 | ||
d977122d | 1230 | if (error == ENXIO || error == EILSEQ) { |
34dc7c2f BB |
1231 | (void) fprintf(stderr, "data error type must be " |
1232 | "'checksum' or 'io'\n"); | |
5df39c1e | 1233 | libzfs_fini(g_zfs); |
34dc7c2f BB |
1234 | return (1); |
1235 | } | |
1236 | ||
ab7615d9 TC |
1237 | if (dvas != 0) { |
1238 | if (error == EACCES || error == EINVAL) { | |
7dcd3188 | 1239 | (void) fprintf(stderr, "the '-C' option may " |
ab7615d9 TC |
1240 | "not be used with logical data errors " |
1241 | "'decrypt' and 'decompress'\n"); | |
1242 | libzfs_fini(g_zfs); | |
1243 | return (1); | |
1244 | } | |
1245 | ||
1246 | record.zi_dvas = dvas; | |
1247 | } | |
1248 | ||
be9a5c35 TC |
1249 | if (error == EACCES) { |
1250 | if (type != TYPE_DATA) { | |
1251 | (void) fprintf(stderr, "decryption errors " | |
1252 | "may only be injected for 'data' types\n"); | |
1253 | libzfs_fini(g_zfs); | |
1254 | return (1); | |
1255 | } | |
1256 | ||
1257 | record.zi_cmd = ZINJECT_DECRYPT_FAULT; | |
1258 | /* | |
1259 | * Internally, ZFS actually uses ECKSUM for decryption | |
1260 | * errors since EACCES is used to indicate the key was | |
1261 | * not found. | |
1262 | */ | |
1263 | error = ECKSUM; | |
1264 | } else { | |
1265 | record.zi_cmd = ZINJECT_DATA_FAULT; | |
1266 | } | |
1267 | ||
34dc7c2f | 1268 | if (translate_record(type, argv[0], range, level, &record, pool, |
5df39c1e | 1269 | dataset) != 0) { |
02730c33 | 1270 | libzfs_fini(g_zfs); |
34dc7c2f | 1271 | return (1); |
5df39c1e | 1272 | } |
34dc7c2f BB |
1273 | if (!error) |
1274 | error = EIO; | |
1275 | } | |
1276 | ||
1277 | /* | |
1278 | * If this is pool-wide metadata, unmount everything. The ioctl() will | |
1279 | * unload the pool, so that we trigger spa-wide reopen of metadata next | |
1280 | * time we access the pool. | |
1281 | */ | |
1282 | if (dataset[0] != '\0' && domount) { | |
5df39c1e | 1283 | if ((zhp = zfs_open(g_zfs, dataset, |
02730c33 | 1284 | ZFS_TYPE_DATASET)) == NULL) { |
5df39c1e | 1285 | libzfs_fini(g_zfs); |
34dc7c2f | 1286 | return (1); |
5df39c1e | 1287 | } |
1288 | if (zfs_unmount(zhp, NULL, 0) != 0) { | |
1289 | libzfs_fini(g_zfs); | |
34dc7c2f | 1290 | return (1); |
5df39c1e | 1291 | } |
34dc7c2f BB |
1292 | } |
1293 | ||
1294 | record.zi_error = error; | |
1295 | ||
1296 | ret = register_handler(pool, flags, &record, quiet); | |
1297 | ||
1298 | if (dataset[0] != '\0' && domount) | |
1299 | ret = (zfs_mount(zhp, NULL, 0) != 0); | |
1300 | ||
1301 | libzfs_fini(g_zfs); | |
1302 | ||
1303 | return (ret); | |
1304 | } |