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
26 /*
27 * Copyright 2016 Igor Kozhukhov <[email protected]>.
28 */
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>
36 #include <thread_pool.h>
37
38 #include <libzfs.h>
39 #include <libzutil.h>
40 #include <sys/zfs_context.h>
41 #include <sys/wait.h>
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;
59 boolean_t zl_literal;
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
zpool_compare(const void * larg,const void * rarg,void * unused)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
add_pool(zpool_handle_t * zhp,void * data)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 &&
92 zpool_expand_proplist(zhp, zlp->zl_proplist,
93 zlp->zl_literal)
94 != 0) {
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 *
pool_list_get(int argc,char ** argv,zprop_list_t ** proplist,boolean_t literal,int * err)116 pool_list_get(int argc, char **argv, zprop_list_t **proplist,
117 boolean_t literal, int *err)
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
135 zlp->zl_literal = literal;
136
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
146 if ((zhp = zpool_open_canfail(g_zfs, argv[i])) !=
147 NULL) {
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
pool_list_update(zpool_list_t * zlp)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
pool_list_iter(zpool_list_t * zlp,int unavail,zpool_iter_f func,void * data)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
pool_list_remove(zpool_list_t * zlp,zpool_handle_t * zhp)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
pool_list_free(zpool_list_t * zlp)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
pool_list_count(zpool_list_t * zlp)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
for_each_pool(int argc,char ** argv,boolean_t unavail,zprop_list_t ** proplist,boolean_t literal,zpool_iter_f func,void * data)250 for_each_pool(int argc, char **argv, boolean_t unavail,
251 zprop_list_t **proplist, boolean_t literal, zpool_iter_f func, void *data)
252 {
253 zpool_list_t *list;
254 int ret = 0;
255
256 if ((list = pool_list_get(argc, argv, proplist, literal, &ret)) == NULL)
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 }
266
267 /*
268 * This is the equivalent of for_each_pool() for vdevs. It iterates thorough
269 * all vdevs in the pool, ignoring root vdevs and holes, calling func() on
270 * each one.
271 *
272 * @zhp: Zpool handle
273 * @func: Function to call on each vdev
274 * @data: Custom data to pass to the function
275 */
276 int
for_each_vdev(zpool_handle_t * zhp,pool_vdev_iter_f func,void * data)277 for_each_vdev(zpool_handle_t *zhp, pool_vdev_iter_f func, void *data)
278 {
279 nvlist_t *config, *nvroot = NULL;
280
281 if ((config = zpool_get_config(zhp, NULL)) != NULL) {
282 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
283 &nvroot) == 0);
284 }
285 return (for_each_vdev_cb((void *) zhp, nvroot, func, data));
286 }
287
288 /*
289 * Process the vcdl->vdev_cmd_data[] array to figure out all the unique column
290 * names and their widths. When this function is done, vcdl->uniq_cols,
291 * vcdl->uniq_cols_cnt, and vcdl->uniq_cols_width will be filled in.
292 */
293 static void
process_unique_cmd_columns(vdev_cmd_data_list_t * vcdl)294 process_unique_cmd_columns(vdev_cmd_data_list_t *vcdl)
295 {
296 char **uniq_cols = NULL, **tmp = NULL;
297 int *uniq_cols_width;
298 vdev_cmd_data_t *data;
299 int cnt = 0;
300 int k;
301
302 /* For each vdev */
303 for (int i = 0; i < vcdl->count; i++) {
304 data = &vcdl->data[i];
305 /* For each column the vdev reported */
306 for (int j = 0; j < data->cols_cnt; j++) {
307 /* Is this column in our list of unique column names? */
308 for (k = 0; k < cnt; k++) {
309 if (strcmp(data->cols[j], uniq_cols[k]) == 0)
310 break; /* yes it is */
311 }
312 if (k == cnt) {
313 /* No entry for column, add to list */
314 tmp = realloc(uniq_cols, sizeof (*uniq_cols) *
315 (cnt + 1));
316 if (tmp == NULL)
317 break; /* Nothing we can do... */
318 uniq_cols = tmp;
319 uniq_cols[cnt] = data->cols[j];
320 cnt++;
321 }
322 }
323 }
324
325 /*
326 * We now have a list of all the unique column names. Figure out the
327 * max width of each column by looking at the column name and all its
328 * values.
329 */
330 uniq_cols_width = safe_malloc(sizeof (*uniq_cols_width) * cnt);
331 for (int i = 0; i < cnt; i++) {
332 /* Start off with the column title's width */
333 uniq_cols_width[i] = strlen(uniq_cols[i]);
334 /* For each vdev */
335 for (int j = 0; j < vcdl->count; j++) {
336 /* For each of the vdev's values in a column */
337 data = &vcdl->data[j];
338 for (k = 0; k < data->cols_cnt; k++) {
339 /* Does this vdev have a value for this col? */
340 if (strcmp(data->cols[k], uniq_cols[i]) == 0) {
341 /* Is the value width larger? */
342 uniq_cols_width[i] =
343 MAX(uniq_cols_width[i],
344 strlen(data->lines[k]));
345 }
346 }
347 }
348 }
349
350 vcdl->uniq_cols = uniq_cols;
351 vcdl->uniq_cols_cnt = cnt;
352 vcdl->uniq_cols_width = uniq_cols_width;
353 }
354
355
356 /*
357 * Process a line of command output
358 *
359 * When running 'zpool iostat|status -c' the lines of output can either be
360 * in the form of:
361 *
362 * column_name=value
363 *
364 * Or just:
365 *
366 * value
367 *
368 * Process the column_name (if any) and value.
369 *
370 * Returns 0 if line was processed, and there are more lines can still be
371 * processed.
372 *
373 * Returns 1 if this was the last line to process, or error.
374 */
375 static int
vdev_process_cmd_output(vdev_cmd_data_t * data,char * line)376 vdev_process_cmd_output(vdev_cmd_data_t *data, char *line)
377 {
378 char *col = NULL;
379 char *val = line;
380 char *equals;
381 char **tmp;
382
383 if (line == NULL)
384 return (1);
385
386 equals = strchr(line, '=');
387 if (equals != NULL) {
388 /*
389 * We have a 'column=value' type line. Split it into the
390 * column and value strings by turning the '=' into a '\0'.
391 */
392 *equals = '\0';
393 col = line;
394 val = equals + 1;
395 } else {
396 val = line;
397 }
398
399 /* Do we already have a column by this name? If so, skip it. */
400 if (col != NULL) {
401 for (int i = 0; i < data->cols_cnt; i++) {
402 if (strcmp(col, data->cols[i]) == 0)
403 return (0); /* Duplicate, skip */
404 }
405 }
406
407 if (val != NULL) {
408 tmp = realloc(data->lines,
409 (data->lines_cnt + 1) * sizeof (*data->lines));
410 if (tmp == NULL)
411 return (1);
412
413 data->lines = tmp;
414 data->lines[data->lines_cnt] = strdup(val);
415 data->lines_cnt++;
416 }
417
418 if (col != NULL) {
419 tmp = realloc(data->cols,
420 (data->cols_cnt + 1) * sizeof (*data->cols));
421 if (tmp == NULL)
422 return (1);
423
424 data->cols = tmp;
425 data->cols[data->cols_cnt] = strdup(col);
426 data->cols_cnt++;
427 }
428
429 if (val != NULL && col == NULL)
430 return (1);
431
432 return (0);
433 }
434
435 /*
436 * Run the cmd and store results in *data.
437 */
438 static void
vdev_run_cmd(vdev_cmd_data_t * data,char * cmd)439 vdev_run_cmd(vdev_cmd_data_t *data, char *cmd)
440 {
441 int rc;
442 char *argv[2] = {cmd, 0};
443 char *env[5] = {"PATH=/bin:/sbin:/usr/bin:/usr/sbin", NULL, NULL, NULL,
444 NULL};
445 char **lines = NULL;
446 int lines_cnt = 0;
447 int i;
448
449 /* Setup our custom environment variables */
450 rc = asprintf(&env[1], "VDEV_PATH=%s",
451 data->path ? data->path : "");
452 if (rc == -1) {
453 env[1] = NULL;
454 goto out;
455 }
456
457 rc = asprintf(&env[2], "VDEV_UPATH=%s",
458 data->upath ? data->upath : "");
459 if (rc == -1) {
460 env[2] = NULL;
461 goto out;
462 }
463
464 rc = asprintf(&env[3], "VDEV_ENC_SYSFS_PATH=%s",
465 data->vdev_enc_sysfs_path ?
466 data->vdev_enc_sysfs_path : "");
467 if (rc == -1) {
468 env[3] = NULL;
469 goto out;
470 }
471
472 /* Run the command */
473 rc = libzfs_run_process_get_stdout_nopath(cmd, argv, env, &lines,
474 &lines_cnt);
475 if (rc != 0)
476 goto out;
477
478 /* Process the output we got */
479 for (i = 0; i < lines_cnt; i++)
480 if (vdev_process_cmd_output(data, lines[i]) != 0)
481 break;
482
483 out:
484 if (lines != NULL)
485 libzfs_free_str_array(lines, lines_cnt);
486
487 /* Start with i = 1 since env[0] was statically allocated */
488 for (i = 1; i < ARRAY_SIZE(env); i++)
489 free(env[i]);
490 }
491
492 /*
493 * Generate the search path for zpool iostat/status -c scripts.
494 * The string returned must be freed.
495 */
496 char *
zpool_get_cmd_search_path(void)497 zpool_get_cmd_search_path(void)
498 {
499 const char *env;
500 char *sp = NULL;
501
502 env = getenv("ZPOOL_SCRIPTS_PATH");
503 if (env != NULL)
504 return (strdup(env));
505
506 env = getenv("HOME");
507 if (env != NULL) {
508 if (asprintf(&sp, "%s/.zpool.d:%s",
509 env, ZPOOL_SCRIPTS_DIR) != -1) {
510 return (sp);
511 }
512 }
513
514 if (asprintf(&sp, "%s", ZPOOL_SCRIPTS_DIR) != -1)
515 return (sp);
516
517 return (NULL);
518 }
519
520 /* Thread function run for each vdev */
521 static void
vdev_run_cmd_thread(void * cb_cmd_data)522 vdev_run_cmd_thread(void *cb_cmd_data)
523 {
524 vdev_cmd_data_t *data = cb_cmd_data;
525 char *cmd = NULL, *cmddup, *cmdrest;
526
527 cmddup = strdup(data->cmd);
528 if (cmddup == NULL)
529 return;
530
531 cmdrest = cmddup;
532 while ((cmd = strtok_r(cmdrest, ",", &cmdrest))) {
533 char *dir = NULL, *sp, *sprest;
534 char fullpath[MAXPATHLEN];
535
536 if (strchr(cmd, '/') != NULL)
537 continue;
538
539 sp = zpool_get_cmd_search_path();
540 if (sp == NULL)
541 continue;
542
543 sprest = sp;
544 while ((dir = strtok_r(sprest, ":", &sprest))) {
545 if (snprintf(fullpath, sizeof (fullpath),
546 "%s/%s", dir, cmd) == -1)
547 continue;
548
549 if (access(fullpath, X_OK) == 0) {
550 vdev_run_cmd(data, fullpath);
551 break;
552 }
553 }
554 free(sp);
555 }
556 free(cmddup);
557 }
558
559 /* For each vdev in the pool run a command */
560 static int
for_each_vdev_run_cb(void * zhp_data,nvlist_t * nv,void * cb_vcdl)561 for_each_vdev_run_cb(void *zhp_data, nvlist_t *nv, void *cb_vcdl)
562 {
563 vdev_cmd_data_list_t *vcdl = cb_vcdl;
564 vdev_cmd_data_t *data;
565 char *path = NULL;
566 char *vname = NULL;
567 char *vdev_enc_sysfs_path = NULL;
568 int i, match = 0;
569 zpool_handle_t *zhp = zhp_data;
570
571 if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0)
572 return (1);
573
574 nvlist_lookup_string(nv, ZPOOL_CONFIG_VDEV_ENC_SYSFS_PATH,
575 &vdev_enc_sysfs_path);
576
577 /* Spares show more than once if they're in use, so skip if exists */
578 for (i = 0; i < vcdl->count; i++) {
579 if ((strcmp(vcdl->data[i].path, path) == 0) &&
580 (strcmp(vcdl->data[i].pool, zpool_get_name(zhp)) == 0)) {
581 /* vdev already exists, skip it */
582 return (0);
583 }
584 }
585
586 /* Check for selected vdevs here, if any */
587 for (i = 0; i < vcdl->vdev_names_count; i++) {
588 vname = zpool_vdev_name(g_zfs, zhp, nv, vcdl->cb_name_flags);
589 if (strcmp(vcdl->vdev_names[i], vname) == 0) {
590 free(vname);
591 match = 1;
592 break; /* match */
593 }
594 free(vname);
595 }
596
597 /* If we selected vdevs, and this isn't one of them, then bail out */
598 if (!match && vcdl->vdev_names_count)
599 return (0);
600
601 /*
602 * Resize our array and add in the new element.
603 */
604 if (!(vcdl->data = realloc(vcdl->data,
605 sizeof (*vcdl->data) * (vcdl->count + 1))))
606 return (ENOMEM); /* couldn't realloc */
607
608 data = &vcdl->data[vcdl->count];
609
610 data->pool = strdup(zpool_get_name(zhp));
611 data->path = strdup(path);
612 data->upath = zfs_get_underlying_path(path);
613 data->cmd = vcdl->cmd;
614 data->lines = data->cols = NULL;
615 data->lines_cnt = data->cols_cnt = 0;
616 if (vdev_enc_sysfs_path)
617 data->vdev_enc_sysfs_path = strdup(vdev_enc_sysfs_path);
618 else
619 data->vdev_enc_sysfs_path = NULL;
620
621 vcdl->count++;
622
623 return (0);
624 }
625
626 /* Get the names and count of the vdevs */
627 static int
all_pools_for_each_vdev_gather_cb(zpool_handle_t * zhp,void * cb_vcdl)628 all_pools_for_each_vdev_gather_cb(zpool_handle_t *zhp, void *cb_vcdl)
629 {
630 return (for_each_vdev(zhp, for_each_vdev_run_cb, cb_vcdl));
631 }
632
633 /*
634 * Now that vcdl is populated with our complete list of vdevs, spawn
635 * off the commands.
636 */
637 static void
all_pools_for_each_vdev_run_vcdl(vdev_cmd_data_list_t * vcdl)638 all_pools_for_each_vdev_run_vcdl(vdev_cmd_data_list_t *vcdl)
639 {
640 tpool_t *t;
641
642 t = tpool_create(1, 5 * sysconf(_SC_NPROCESSORS_ONLN), 0, NULL);
643 if (t == NULL)
644 return;
645
646 /* Spawn off the command for each vdev */
647 for (int i = 0; i < vcdl->count; i++) {
648 (void) tpool_dispatch(t, vdev_run_cmd_thread,
649 (void *) &vcdl->data[i]);
650 }
651
652 /* Wait for threads to finish */
653 tpool_wait(t);
654 tpool_destroy(t);
655 }
656
657 /*
658 * Run command 'cmd' on all vdevs in all pools in argv. Saves the first line of
659 * output from the command in vcdk->data[].line for all vdevs. If you want
660 * to run the command on only certain vdevs, fill in g_zfs, vdev_names,
661 * vdev_names_count, and cb_name_flags. Otherwise leave them as zero.
662 *
663 * Returns a vdev_cmd_data_list_t that must be freed with
664 * free_vdev_cmd_data_list();
665 */
666 vdev_cmd_data_list_t *
all_pools_for_each_vdev_run(int argc,char ** argv,char * cmd,libzfs_handle_t * g_zfs,char ** vdev_names,int vdev_names_count,int cb_name_flags)667 all_pools_for_each_vdev_run(int argc, char **argv, char *cmd,
668 libzfs_handle_t *g_zfs, char **vdev_names, int vdev_names_count,
669 int cb_name_flags)
670 {
671 vdev_cmd_data_list_t *vcdl;
672 vcdl = safe_malloc(sizeof (vdev_cmd_data_list_t));
673 vcdl->cmd = cmd;
674
675 vcdl->vdev_names = vdev_names;
676 vcdl->vdev_names_count = vdev_names_count;
677 vcdl->cb_name_flags = cb_name_flags;
678 vcdl->g_zfs = g_zfs;
679
680 /* Gather our list of all vdevs in all pools */
681 for_each_pool(argc, argv, B_TRUE, NULL, B_FALSE,
682 all_pools_for_each_vdev_gather_cb, vcdl);
683
684 /* Run command on all vdevs in all pools */
685 all_pools_for_each_vdev_run_vcdl(vcdl);
686
687 /*
688 * vcdl->data[] now contains all the column names and values for each
689 * vdev. We need to process that into a master list of unique column
690 * names, and figure out the width of each column.
691 */
692 process_unique_cmd_columns(vcdl);
693
694 return (vcdl);
695 }
696
697 /*
698 * Free the vdev_cmd_data_list_t created by all_pools_for_each_vdev_run()
699 */
700 void
free_vdev_cmd_data_list(vdev_cmd_data_list_t * vcdl)701 free_vdev_cmd_data_list(vdev_cmd_data_list_t *vcdl)
702 {
703 free(vcdl->uniq_cols);
704 free(vcdl->uniq_cols_width);
705
706 for (int i = 0; i < vcdl->count; i++) {
707 free(vcdl->data[i].path);
708 free(vcdl->data[i].pool);
709 free(vcdl->data[i].upath);
710
711 for (int j = 0; j < vcdl->data[i].lines_cnt; j++)
712 free(vcdl->data[i].lines[j]);
713
714 free(vcdl->data[i].lines);
715
716 for (int j = 0; j < vcdl->data[i].cols_cnt; j++)
717 free(vcdl->data[i].cols[j]);
718
719 free(vcdl->data[i].cols);
720 free(vcdl->data[i].vdev_enc_sysfs_path);
721 }
722 free(vcdl->data);
723 free(vcdl);
724 }
725