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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 | /* | |
22 | * Copyright 2007 Sun Microsystems, Inc. All rights reserved. | |
23 | * Use is subject to license terms. | |
24 | */ | |
25 | ||
8e896579 BB |
26 | /* |
27 | * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. | |
28 | */ | |
34dc7c2f BB |
29 | |
30 | #include <libintl.h> | |
31 | #include <libuutil.h> | |
32 | #include <stddef.h> | |
33 | #include <stdio.h> | |
34 | #include <stdlib.h> | |
35 | #include <strings.h> | |
46364cb2 | 36 | #include <thread_pool.h> |
34dc7c2f BB |
37 | |
38 | #include <libzfs.h> | |
e89f1295 | 39 | #include <libzutil.h> |
8720e9e7 | 40 | #include <sys/zfs_context.h> |
d6418de0 | 41 | #include <sys/wait.h> |
34dc7c2f BB |
42 | |
43 | #include "zpool_util.h" | |
44 | ||
45 | /* | |
46 | * Private interface for iterating over pools specified on the command line. | |
47 | * Most consumers will call for_each_pool, but in order to support iostat, we | |
48 | * allow fined grained control through the zpool_list_t interface. | |
49 | */ | |
50 | ||
51 | typedef struct zpool_node { | |
52 | zpool_handle_t *zn_handle; | |
53 | uu_avl_node_t zn_avlnode; | |
54 | int zn_mark; | |
55 | } zpool_node_t; | |
56 | ||
57 | struct zpool_list { | |
58 | boolean_t zl_findall; | |
e6c59cd1 | 59 | boolean_t zl_literal; |
34dc7c2f BB |
60 | uu_avl_t *zl_avl; |
61 | uu_avl_pool_t *zl_pool; | |
62 | zprop_list_t **zl_proplist; | |
63 | }; | |
64 | ||
65 | /* ARGSUSED */ | |
66 | static int | |
67 | zpool_compare(const void *larg, const void *rarg, void *unused) | |
68 | { | |
69 | zpool_handle_t *l = ((zpool_node_t *)larg)->zn_handle; | |
70 | zpool_handle_t *r = ((zpool_node_t *)rarg)->zn_handle; | |
71 | const char *lname = zpool_get_name(l); | |
72 | const char *rname = zpool_get_name(r); | |
73 | ||
74 | return (strcmp(lname, rname)); | |
75 | } | |
76 | ||
77 | /* | |
78 | * Callback function for pool_list_get(). Adds the given pool to the AVL tree | |
79 | * of known pools. | |
80 | */ | |
81 | static int | |
82 | add_pool(zpool_handle_t *zhp, void *data) | |
83 | { | |
84 | zpool_list_t *zlp = data; | |
85 | zpool_node_t *node = safe_malloc(sizeof (zpool_node_t)); | |
86 | uu_avl_index_t idx; | |
87 | ||
88 | node->zn_handle = zhp; | |
89 | uu_avl_node_init(node, &node->zn_avlnode, zlp->zl_pool); | |
90 | if (uu_avl_find(zlp->zl_avl, node, NULL, &idx) == NULL) { | |
91 | if (zlp->zl_proplist && | |
e6c59cd1 AZ |
92 | zpool_expand_proplist(zhp, zlp->zl_proplist, |
93 | zlp->zl_literal) | |
94 | != 0) { | |
34dc7c2f BB |
95 | zpool_close(zhp); |
96 | free(node); | |
97 | return (-1); | |
98 | } | |
99 | uu_avl_insert(zlp->zl_avl, node, idx); | |
100 | } else { | |
101 | zpool_close(zhp); | |
102 | free(node); | |
103 | return (-1); | |
104 | } | |
105 | ||
106 | return (0); | |
107 | } | |
108 | ||
109 | /* | |
110 | * Create a list of pools based on the given arguments. If we're given no | |
111 | * arguments, then iterate over all pools in the system and add them to the AVL | |
112 | * tree. Otherwise, add only those pool explicitly specified on the command | |
113 | * line. | |
114 | */ | |
115 | zpool_list_t * | |
e6c59cd1 AZ |
116 | pool_list_get(int argc, char **argv, zprop_list_t **proplist, |
117 | boolean_t literal, int *err) | |
34dc7c2f BB |
118 | { |
119 | zpool_list_t *zlp; | |
120 | ||
121 | zlp = safe_malloc(sizeof (zpool_list_t)); | |
122 | ||
123 | zlp->zl_pool = uu_avl_pool_create("zfs_pool", sizeof (zpool_node_t), | |
124 | offsetof(zpool_node_t, zn_avlnode), zpool_compare, UU_DEFAULT); | |
125 | ||
126 | if (zlp->zl_pool == NULL) | |
127 | zpool_no_memory(); | |
128 | ||
129 | if ((zlp->zl_avl = uu_avl_create(zlp->zl_pool, NULL, | |
130 | UU_DEFAULT)) == NULL) | |
131 | zpool_no_memory(); | |
132 | ||
133 | zlp->zl_proplist = proplist; | |
134 | ||
e6c59cd1 AZ |
135 | zlp->zl_literal = literal; |
136 | ||
34dc7c2f BB |
137 | if (argc == 0) { |
138 | (void) zpool_iter(g_zfs, add_pool, zlp); | |
139 | zlp->zl_findall = B_TRUE; | |
140 | } else { | |
141 | int i; | |
142 | ||
143 | for (i = 0; i < argc; i++) { | |
144 | zpool_handle_t *zhp; | |
145 | ||
8e896579 BB |
146 | if ((zhp = zpool_open_canfail(g_zfs, argv[i])) != |
147 | NULL) { | |
34dc7c2f BB |
148 | if (add_pool(zhp, zlp) != 0) |
149 | *err = B_TRUE; | |
150 | } else { | |
151 | *err = B_TRUE; | |
152 | } | |
153 | } | |
154 | } | |
155 | ||
156 | return (zlp); | |
157 | } | |
158 | ||
159 | /* | |
160 | * Search for any new pools, adding them to the list. We only add pools when no | |
161 | * options were given on the command line. Otherwise, we keep the list fixed as | |
162 | * those that were explicitly specified. | |
163 | */ | |
164 | void | |
165 | pool_list_update(zpool_list_t *zlp) | |
166 | { | |
167 | if (zlp->zl_findall) | |
168 | (void) zpool_iter(g_zfs, add_pool, zlp); | |
169 | } | |
170 | ||
171 | /* | |
172 | * Iterate over all pools in the list, executing the callback for each | |
173 | */ | |
174 | int | |
175 | pool_list_iter(zpool_list_t *zlp, int unavail, zpool_iter_f func, | |
176 | void *data) | |
177 | { | |
178 | zpool_node_t *node, *next_node; | |
179 | int ret = 0; | |
180 | ||
181 | for (node = uu_avl_first(zlp->zl_avl); node != NULL; node = next_node) { | |
182 | next_node = uu_avl_next(zlp->zl_avl, node); | |
183 | if (zpool_get_state(node->zn_handle) != POOL_STATE_UNAVAIL || | |
184 | unavail) | |
185 | ret |= func(node->zn_handle, data); | |
186 | } | |
187 | ||
188 | return (ret); | |
189 | } | |
190 | ||
191 | /* | |
192 | * Remove the given pool from the list. When running iostat, we want to remove | |
193 | * those pools that no longer exist. | |
194 | */ | |
195 | void | |
196 | pool_list_remove(zpool_list_t *zlp, zpool_handle_t *zhp) | |
197 | { | |
198 | zpool_node_t search, *node; | |
199 | ||
200 | search.zn_handle = zhp; | |
201 | if ((node = uu_avl_find(zlp->zl_avl, &search, NULL, NULL)) != NULL) { | |
202 | uu_avl_remove(zlp->zl_avl, node); | |
203 | zpool_close(node->zn_handle); | |
204 | free(node); | |
205 | } | |
206 | } | |
207 | ||
208 | /* | |
209 | * Free all the handles associated with this list. | |
210 | */ | |
211 | void | |
212 | pool_list_free(zpool_list_t *zlp) | |
213 | { | |
214 | uu_avl_walk_t *walk; | |
215 | zpool_node_t *node; | |
216 | ||
217 | if ((walk = uu_avl_walk_start(zlp->zl_avl, UU_WALK_ROBUST)) == NULL) { | |
218 | (void) fprintf(stderr, | |
219 | gettext("internal error: out of memory")); | |
220 | exit(1); | |
221 | } | |
222 | ||
223 | while ((node = uu_avl_walk_next(walk)) != NULL) { | |
224 | uu_avl_remove(zlp->zl_avl, node); | |
225 | zpool_close(node->zn_handle); | |
226 | free(node); | |
227 | } | |
228 | ||
229 | uu_avl_walk_end(walk); | |
230 | uu_avl_destroy(zlp->zl_avl); | |
231 | uu_avl_pool_destroy(zlp->zl_pool); | |
232 | ||
233 | free(zlp); | |
234 | } | |
235 | ||
236 | /* | |
237 | * Returns the number of elements in the pool list. | |
238 | */ | |
239 | int | |
240 | pool_list_count(zpool_list_t *zlp) | |
241 | { | |
242 | return (uu_avl_numnodes(zlp->zl_avl)); | |
243 | } | |
244 | ||
245 | /* | |
246 | * High level function which iterates over all pools given on the command line, | |
247 | * using the pool_list_* interfaces. | |
248 | */ | |
249 | int | |
250 | for_each_pool(int argc, char **argv, boolean_t unavail, | |
e6c59cd1 | 251 | zprop_list_t **proplist, boolean_t literal, zpool_iter_f func, void *data) |
34dc7c2f BB |
252 | { |
253 | zpool_list_t *list; | |
254 | int ret = 0; | |
255 | ||
e6c59cd1 | 256 | if ((list = pool_list_get(argc, argv, proplist, literal, &ret)) == NULL) |
34dc7c2f BB |
257 | return (1); |
258 | ||
259 | if (pool_list_iter(list, unavail, func, data) != 0) | |
260 | ret = 1; | |
261 | ||
262 | pool_list_free(list); | |
263 | ||
264 | return (ret); | |
265 | } | |
193a37cb TH |
266 | |
267 | static int | |
268 | for_each_vdev_cb(zpool_handle_t *zhp, nvlist_t *nv, pool_vdev_iter_f func, | |
269 | void *data) | |
270 | { | |
271 | nvlist_t **child; | |
272 | uint_t c, children; | |
273 | int ret = 0; | |
274 | int i; | |
275 | char *type; | |
276 | ||
277 | const char *list[] = { | |
278 | ZPOOL_CONFIG_SPARES, | |
279 | ZPOOL_CONFIG_L2CACHE, | |
280 | ZPOOL_CONFIG_CHILDREN | |
281 | }; | |
282 | ||
283 | for (i = 0; i < ARRAY_SIZE(list); i++) { | |
284 | if (nvlist_lookup_nvlist_array(nv, list[i], &child, | |
285 | &children) == 0) { | |
286 | for (c = 0; c < children; c++) { | |
287 | uint64_t ishole = 0; | |
288 | ||
289 | (void) nvlist_lookup_uint64(child[c], | |
290 | ZPOOL_CONFIG_IS_HOLE, &ishole); | |
291 | ||
292 | if (ishole) | |
293 | continue; | |
294 | ||
295 | ret |= for_each_vdev_cb(zhp, child[c], func, | |
296 | data); | |
297 | } | |
298 | } | |
299 | } | |
300 | ||
301 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) != 0) | |
302 | return (ret); | |
303 | ||
304 | /* Don't run our function on root vdevs */ | |
305 | if (strcmp(type, VDEV_TYPE_ROOT) != 0) { | |
306 | ret |= func(zhp, nv, data); | |
307 | } | |
308 | ||
309 | return (ret); | |
310 | } | |
311 | ||
312 | /* | |
313 | * This is the equivalent of for_each_pool() for vdevs. It iterates thorough | |
314 | * all vdevs in the pool, ignoring root vdevs and holes, calling func() on | |
315 | * each one. | |
316 | * | |
317 | * @zhp: Zpool handle | |
318 | * @func: Function to call on each vdev | |
319 | * @data: Custom data to pass to the function | |
320 | */ | |
321 | int | |
322 | for_each_vdev(zpool_handle_t *zhp, pool_vdev_iter_f func, void *data) | |
323 | { | |
a64f903b | 324 | nvlist_t *config, *nvroot = NULL; |
193a37cb TH |
325 | |
326 | if ((config = zpool_get_config(zhp, NULL)) != NULL) { | |
327 | verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
328 | &nvroot) == 0); | |
329 | } | |
330 | return (for_each_vdev_cb(zhp, nvroot, func, data)); | |
331 | } | |
8720e9e7 | 332 | |
d6418de0 TH |
333 | /* |
334 | * Process the vcdl->vdev_cmd_data[] array to figure out all the unique column | |
335 | * names and their widths. When this function is done, vcdl->uniq_cols, | |
336 | * vcdl->uniq_cols_cnt, and vcdl->uniq_cols_width will be filled in. | |
337 | */ | |
338 | static void | |
339 | process_unique_cmd_columns(vdev_cmd_data_list_t *vcdl) | |
340 | { | |
341 | char **uniq_cols = NULL, **tmp = NULL; | |
342 | int *uniq_cols_width; | |
343 | vdev_cmd_data_t *data; | |
344 | int cnt = 0; | |
345 | int k; | |
346 | ||
347 | /* For each vdev */ | |
348 | for (int i = 0; i < vcdl->count; i++) { | |
349 | data = &vcdl->data[i]; | |
350 | /* For each column the vdev reported */ | |
351 | for (int j = 0; j < data->cols_cnt; j++) { | |
352 | /* Is this column in our list of unique column names? */ | |
353 | for (k = 0; k < cnt; k++) { | |
354 | if (strcmp(data->cols[j], uniq_cols[k]) == 0) | |
355 | break; /* yes it is */ | |
356 | } | |
357 | if (k == cnt) { | |
358 | /* No entry for column, add to list */ | |
359 | tmp = realloc(uniq_cols, sizeof (*uniq_cols) * | |
360 | (cnt + 1)); | |
361 | if (tmp == NULL) | |
362 | break; /* Nothing we can do... */ | |
363 | uniq_cols = tmp; | |
364 | uniq_cols[cnt] = data->cols[j]; | |
365 | cnt++; | |
366 | } | |
367 | } | |
368 | } | |
369 | ||
370 | /* | |
371 | * We now have a list of all the unique column names. Figure out the | |
372 | * max width of each column by looking at the column name and all its | |
373 | * values. | |
374 | */ | |
375 | uniq_cols_width = safe_malloc(sizeof (*uniq_cols_width) * cnt); | |
376 | for (int i = 0; i < cnt; i++) { | |
377 | /* Start off with the column title's width */ | |
378 | uniq_cols_width[i] = strlen(uniq_cols[i]); | |
379 | /* For each vdev */ | |
380 | for (int j = 0; j < vcdl->count; j++) { | |
381 | /* For each of the vdev's values in a column */ | |
382 | data = &vcdl->data[j]; | |
383 | for (k = 0; k < data->cols_cnt; k++) { | |
384 | /* Does this vdev have a value for this col? */ | |
385 | if (strcmp(data->cols[k], uniq_cols[i]) == 0) { | |
386 | /* Is the value width larger? */ | |
387 | uniq_cols_width[i] = | |
388 | MAX(uniq_cols_width[i], | |
389 | strlen(data->lines[k])); | |
390 | } | |
391 | } | |
392 | } | |
393 | } | |
394 | ||
395 | vcdl->uniq_cols = uniq_cols; | |
396 | vcdl->uniq_cols_cnt = cnt; | |
397 | vcdl->uniq_cols_width = uniq_cols_width; | |
398 | } | |
399 | ||
400 | ||
401 | /* | |
402 | * Process a line of command output | |
403 | * | |
404 | * When running 'zpool iostat|status -c' the lines of output can either be | |
405 | * in the form of: | |
406 | * | |
407 | * column_name=value | |
408 | * | |
409 | * Or just: | |
410 | * | |
411 | * value | |
412 | * | |
413 | * Process the column_name (if any) and value. | |
414 | * | |
415 | * Returns 0 if line was processed, and there are more lines can still be | |
416 | * processed. | |
417 | * | |
418 | * Returns 1 if this was the last line to process, or error. | |
419 | */ | |
420 | static int | |
421 | vdev_process_cmd_output(vdev_cmd_data_t *data, char *line) | |
422 | { | |
423 | char *col = NULL; | |
424 | char *val = line; | |
425 | char *equals; | |
426 | char **tmp; | |
427 | ||
428 | if (line == NULL) | |
429 | return (1); | |
430 | ||
431 | equals = strchr(line, '='); | |
432 | if (equals != NULL) { | |
433 | /* | |
434 | * We have a 'column=value' type line. Split it into the | |
435 | * column and value strings by turning the '=' into a '\0'. | |
436 | */ | |
437 | *equals = '\0'; | |
438 | col = line; | |
439 | val = equals + 1; | |
440 | } else { | |
441 | val = line; | |
442 | } | |
443 | ||
444 | /* Do we already have a column by this name? If so, skip it. */ | |
445 | if (col != NULL) { | |
446 | for (int i = 0; i < data->cols_cnt; i++) { | |
447 | if (strcmp(col, data->cols[i]) == 0) | |
448 | return (0); /* Duplicate, skip */ | |
449 | } | |
450 | } | |
451 | ||
452 | if (val != NULL) { | |
453 | tmp = realloc(data->lines, | |
454 | (data->lines_cnt + 1) * sizeof (*data->lines)); | |
455 | if (tmp == NULL) | |
456 | return (1); | |
457 | ||
458 | data->lines = tmp; | |
459 | data->lines[data->lines_cnt] = strdup(val); | |
460 | data->lines_cnt++; | |
461 | } | |
462 | ||
463 | if (col != NULL) { | |
464 | tmp = realloc(data->cols, | |
465 | (data->cols_cnt + 1) * sizeof (*data->cols)); | |
466 | if (tmp == NULL) | |
467 | return (1); | |
468 | ||
469 | data->cols = tmp; | |
470 | data->cols[data->cols_cnt] = strdup(col); | |
471 | data->cols_cnt++; | |
472 | } | |
473 | ||
474 | if (val != NULL && col == NULL) | |
475 | return (1); | |
476 | ||
477 | return (0); | |
478 | } | |
479 | ||
480 | /* | |
481 | * Run the cmd and store results in *data. | |
482 | */ | |
483 | static void | |
484 | vdev_run_cmd(vdev_cmd_data_t *data, char *cmd) | |
485 | { | |
486 | int rc; | |
487 | char *argv[2] = {cmd, 0}; | |
488 | char *env[5] = {"PATH=/bin:/sbin:/usr/bin:/usr/sbin", NULL, NULL, NULL, | |
489 | NULL}; | |
490 | char **lines = NULL; | |
491 | int lines_cnt = 0; | |
492 | int i; | |
493 | ||
494 | /* Setup our custom environment variables */ | |
495 | rc = asprintf(&env[1], "VDEV_PATH=%s", | |
496 | data->path ? data->path : ""); | |
497 | if (rc == -1) | |
498 | goto out; | |
499 | ||
500 | rc = asprintf(&env[2], "VDEV_UPATH=%s", | |
501 | data->upath ? data->upath : ""); | |
502 | if (rc == -1) | |
503 | goto out; | |
504 | ||
505 | rc = asprintf(&env[3], "VDEV_ENC_SYSFS_PATH=%s", | |
506 | data->vdev_enc_sysfs_path ? | |
507 | data->vdev_enc_sysfs_path : ""); | |
508 | if (rc == -1) | |
509 | goto out; | |
510 | ||
511 | /* Run the command */ | |
512 | rc = libzfs_run_process_get_stdout_nopath(cmd, argv, env, &lines, | |
513 | &lines_cnt); | |
514 | if (rc != 0) | |
515 | goto out; | |
516 | ||
517 | /* Process the output we got */ | |
518 | for (i = 0; i < lines_cnt; i++) | |
519 | if (vdev_process_cmd_output(data, lines[i]) != 0) | |
520 | break; | |
521 | ||
522 | out: | |
523 | if (lines != NULL) | |
524 | libzfs_free_str_array(lines, lines_cnt); | |
525 | ||
526 | /* Start with i = 1 since env[0] was statically allocated */ | |
527 | for (i = 1; i < ARRAY_SIZE(env); i++) | |
528 | if (env[i] != NULL) | |
529 | free(env[i]); | |
530 | } | |
531 | ||
099700d9 GDN |
532 | /* |
533 | * Generate the search path for zpool iostat/status -c scripts. | |
534 | * The string returned must be freed. | |
535 | */ | |
536 | char * | |
537 | zpool_get_cmd_search_path(void) | |
538 | { | |
539 | const char *env; | |
540 | char *sp = NULL; | |
541 | ||
542 | env = getenv("ZPOOL_SCRIPTS_PATH"); | |
543 | if (env != NULL) | |
544 | return (strdup(env)); | |
545 | ||
546 | env = getenv("HOME"); | |
547 | if (env != NULL) { | |
548 | if (asprintf(&sp, "%s/.zpool.d:%s", | |
549 | env, ZPOOL_SCRIPTS_DIR) != -1) { | |
550 | return (sp); | |
551 | } | |
552 | } | |
553 | ||
554 | if (asprintf(&sp, "%s", ZPOOL_SCRIPTS_DIR) != -1) | |
555 | return (sp); | |
556 | ||
557 | return (NULL); | |
558 | } | |
559 | ||
8720e9e7 TH |
560 | /* Thread function run for each vdev */ |
561 | static void | |
562 | vdev_run_cmd_thread(void *cb_cmd_data) | |
563 | { | |
564 | vdev_cmd_data_t *data = cb_cmd_data; | |
099700d9 | 565 | char *cmd = NULL, *cmddup, *cmdrest; |
8720e9e7 | 566 | |
d6418de0 TH |
567 | cmddup = strdup(data->cmd); |
568 | if (cmddup == NULL) | |
8720e9e7 TH |
569 | return; |
570 | ||
099700d9 GDN |
571 | cmdrest = cmddup; |
572 | while ((cmd = strtok_r(cmdrest, ",", &cmdrest))) { | |
573 | char *dir = NULL, *sp, *sprest; | |
574 | char fullpath[MAXPATHLEN]; | |
575 | ||
d6bcf7ff GDN |
576 | if (strchr(cmd, '/') != NULL) |
577 | continue; | |
578 | ||
099700d9 GDN |
579 | sp = zpool_get_cmd_search_path(); |
580 | if (sp == NULL) | |
d6418de0 | 581 | continue; |
8720e9e7 | 582 | |
099700d9 GDN |
583 | sprest = sp; |
584 | while ((dir = strtok_r(sprest, ":", &sprest))) { | |
585 | if (snprintf(fullpath, sizeof (fullpath), | |
586 | "%s/%s", dir, cmd) == -1) | |
587 | continue; | |
588 | ||
589 | if (access(fullpath, X_OK) == 0) { | |
590 | vdev_run_cmd(data, fullpath); | |
591 | break; | |
592 | } | |
593 | } | |
594 | free(sp); | |
8720e9e7 | 595 | } |
d6418de0 | 596 | free(cmddup); |
8720e9e7 TH |
597 | } |
598 | ||
599 | /* For each vdev in the pool run a command */ | |
600 | static int | |
601 | for_each_vdev_run_cb(zpool_handle_t *zhp, nvlist_t *nv, void *cb_vcdl) | |
602 | { | |
603 | vdev_cmd_data_list_t *vcdl = cb_vcdl; | |
604 | vdev_cmd_data_t *data; | |
605 | char *path = NULL; | |
58bf046a | 606 | char *vname = NULL; |
b291029e | 607 | char *vdev_enc_sysfs_path = NULL; |
1528bfdb | 608 | int i, match = 0; |
8720e9e7 TH |
609 | |
610 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0) | |
611 | return (1); | |
612 | ||
b291029e TH |
613 | nvlist_lookup_string(nv, ZPOOL_CONFIG_VDEV_ENC_SYSFS_PATH, |
614 | &vdev_enc_sysfs_path); | |
615 | ||
8720e9e7 TH |
616 | /* Spares show more than once if they're in use, so skip if exists */ |
617 | for (i = 0; i < vcdl->count; i++) { | |
618 | if ((strcmp(vcdl->data[i].path, path) == 0) && | |
619 | (strcmp(vcdl->data[i].pool, zpool_get_name(zhp)) == 0)) { | |
620 | /* vdev already exists, skip it */ | |
621 | return (0); | |
622 | } | |
623 | } | |
624 | ||
ba54b180 | 625 | /* Check for selected vdevs here, if any */ |
1528bfdb | 626 | for (i = 0; i < vcdl->vdev_names_count; i++) { |
58bf046a | 627 | vname = zpool_vdev_name(g_zfs, zhp, nv, vcdl->cb_name_flags); |
628 | if (strcmp(vcdl->vdev_names[i], vname) == 0) { | |
629 | free(vname); | |
1528bfdb TH |
630 | match = 1; |
631 | break; /* match */ | |
632 | } | |
58bf046a | 633 | free(vname); |
1528bfdb TH |
634 | } |
635 | ||
ba54b180 | 636 | /* If we selected vdevs, and this isn't one of them, then bail out */ |
1528bfdb TH |
637 | if (!match && vcdl->vdev_names_count) |
638 | return (0); | |
639 | ||
8720e9e7 TH |
640 | /* |
641 | * Resize our array and add in the new element. | |
642 | */ | |
643 | if (!(vcdl->data = realloc(vcdl->data, | |
644 | sizeof (*vcdl->data) * (vcdl->count + 1)))) | |
645 | return (ENOMEM); /* couldn't realloc */ | |
646 | ||
647 | data = &vcdl->data[vcdl->count]; | |
648 | ||
649 | data->pool = strdup(zpool_get_name(zhp)); | |
650 | data->path = strdup(path); | |
651 | data->upath = zfs_get_underlying_path(path); | |
652 | data->cmd = vcdl->cmd; | |
d6418de0 TH |
653 | data->lines = data->cols = NULL; |
654 | data->lines_cnt = data->cols_cnt = 0; | |
b291029e TH |
655 | if (vdev_enc_sysfs_path) |
656 | data->vdev_enc_sysfs_path = strdup(vdev_enc_sysfs_path); | |
657 | else | |
658 | data->vdev_enc_sysfs_path = NULL; | |
8720e9e7 TH |
659 | |
660 | vcdl->count++; | |
661 | ||
662 | return (0); | |
663 | } | |
664 | ||
665 | /* Get the names and count of the vdevs */ | |
666 | static int | |
667 | all_pools_for_each_vdev_gather_cb(zpool_handle_t *zhp, void *cb_vcdl) | |
668 | { | |
669 | return (for_each_vdev(zhp, for_each_vdev_run_cb, cb_vcdl)); | |
670 | } | |
671 | ||
672 | /* | |
673 | * Now that vcdl is populated with our complete list of vdevs, spawn | |
674 | * off the commands. | |
675 | */ | |
676 | static void | |
677 | all_pools_for_each_vdev_run_vcdl(vdev_cmd_data_list_t *vcdl) | |
678 | { | |
46364cb2 | 679 | tpool_t *t; |
8720e9e7 | 680 | |
46364cb2 | 681 | t = tpool_create(1, 5 * sysconf(_SC_NPROCESSORS_ONLN), 0, NULL); |
8720e9e7 TH |
682 | if (t == NULL) |
683 | return; | |
684 | ||
685 | /* Spawn off the command for each vdev */ | |
46364cb2 BB |
686 | for (int i = 0; i < vcdl->count; i++) { |
687 | (void) tpool_dispatch(t, vdev_run_cmd_thread, | |
688 | (void *) &vcdl->data[i]); | |
8720e9e7 TH |
689 | } |
690 | ||
691 | /* Wait for threads to finish */ | |
46364cb2 BB |
692 | tpool_wait(t); |
693 | tpool_destroy(t); | |
8720e9e7 TH |
694 | } |
695 | ||
696 | /* | |
1528bfdb TH |
697 | * Run command 'cmd' on all vdevs in all pools in argv. Saves the first line of |
698 | * output from the command in vcdk->data[].line for all vdevs. If you want | |
699 | * to run the command on only certain vdevs, fill in g_zfs, vdev_names, | |
700 | * vdev_names_count, and cb_name_flags. Otherwise leave them as zero. | |
8720e9e7 TH |
701 | * |
702 | * Returns a vdev_cmd_data_list_t that must be freed with | |
703 | * free_vdev_cmd_data_list(); | |
704 | */ | |
705 | vdev_cmd_data_list_t * | |
1528bfdb TH |
706 | all_pools_for_each_vdev_run(int argc, char **argv, char *cmd, |
707 | libzfs_handle_t *g_zfs, char **vdev_names, int vdev_names_count, | |
708 | int cb_name_flags) | |
8720e9e7 TH |
709 | { |
710 | vdev_cmd_data_list_t *vcdl; | |
2d44b04b | 711 | vcdl = safe_malloc(sizeof (vdev_cmd_data_list_t)); |
8720e9e7 TH |
712 | vcdl->cmd = cmd; |
713 | ||
1528bfdb TH |
714 | vcdl->vdev_names = vdev_names; |
715 | vcdl->vdev_names_count = vdev_names_count; | |
716 | vcdl->cb_name_flags = cb_name_flags; | |
717 | vcdl->g_zfs = g_zfs; | |
718 | ||
8720e9e7 | 719 | /* Gather our list of all vdevs in all pools */ |
e6c59cd1 | 720 | for_each_pool(argc, argv, B_TRUE, NULL, B_FALSE, |
8720e9e7 TH |
721 | all_pools_for_each_vdev_gather_cb, vcdl); |
722 | ||
723 | /* Run command on all vdevs in all pools */ | |
724 | all_pools_for_each_vdev_run_vcdl(vcdl); | |
725 | ||
d6418de0 TH |
726 | /* |
727 | * vcdl->data[] now contains all the column names and values for each | |
728 | * vdev. We need to process that into a master list of unique column | |
729 | * names, and figure out the width of each column. | |
730 | */ | |
731 | process_unique_cmd_columns(vcdl); | |
732 | ||
8720e9e7 TH |
733 | return (vcdl); |
734 | } | |
735 | ||
736 | /* | |
737 | * Free the vdev_cmd_data_list_t created by all_pools_for_each_vdev_run() | |
738 | */ | |
739 | void | |
740 | free_vdev_cmd_data_list(vdev_cmd_data_list_t *vcdl) | |
741 | { | |
d6418de0 TH |
742 | free(vcdl->uniq_cols); |
743 | free(vcdl->uniq_cols_width); | |
744 | ||
745 | for (int i = 0; i < vcdl->count; i++) { | |
8720e9e7 TH |
746 | free(vcdl->data[i].path); |
747 | free(vcdl->data[i].pool); | |
748 | free(vcdl->data[i].upath); | |
d6418de0 TH |
749 | |
750 | for (int j = 0; j < vcdl->data[i].lines_cnt; j++) | |
751 | free(vcdl->data[i].lines[j]); | |
752 | ||
753 | free(vcdl->data[i].lines); | |
754 | ||
755 | for (int j = 0; j < vcdl->data[i].cols_cnt; j++) | |
756 | free(vcdl->data[i].cols[j]); | |
757 | ||
758 | free(vcdl->data[i].cols); | |
b291029e | 759 | free(vcdl->data[i].vdev_enc_sysfs_path); |
8720e9e7 TH |
760 | } |
761 | free(vcdl->data); | |
762 | free(vcdl); | |
763 | } |