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Commit | Line | Data |
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b1713d28 | 1 | /* |
6606c3ae | 2 | * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. |
5f4b2acf | 3 | * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. |
b1713d28 | 4 | * |
6606c3ae AK |
5 | * This file is part of LVM2. |
6 | * | |
7 | * This copyrighted material is made available to anyone wishing to use, | |
8 | * modify, copy, or redistribute it subject to the terms and conditions | |
9 | * of the GNU General Public License v.2. | |
10 | * | |
11 | * You should have received a copy of the GNU General Public License | |
12 | * along with this program; if not, write to the Free Software Foundation, | |
13 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
b1713d28 JT |
14 | */ |
15 | ||
d1d9800e | 16 | #include "lib.h" |
a381c45a | 17 | #include "metadata.h" |
b1713d28 | 18 | #include "activate.h" |
914c9723 | 19 | #include "memlock.h" |
78125be9 | 20 | #include "display.h" |
f7a14956 | 21 | #include "fs.h" |
f894b4b1 | 22 | #include "lvm-exec.h" |
7d1552c9 | 23 | #include "lvm-file.h" |
41b2fd5f | 24 | #include "lvm-string.h" |
413cc918 | 25 | #include "toolcontext.h" |
de6c9183 | 26 | #include "dev_manager.h" |
de17d760 | 27 | #include "str_list.h" |
4922197a | 28 | #include "config.h" |
352a99b9 | 29 | #include "filter.h" |
15d91f5a | 30 | #include "segtype.h" |
12137231 JT |
31 | |
32 | #include <limits.h> | |
5986ec94 | 33 | #include <fcntl.h> |
914c9723 | 34 | #include <unistd.h> |
12137231 | 35 | |
6d52fb46 | 36 | #define _skip(fmt, args...) log_very_verbose("Skipping: " fmt , ## args) |
b1713d28 | 37 | |
7d1552c9 AK |
38 | int lvm1_present(struct cmd_context *cmd) |
39 | { | |
40 | char path[PATH_MAX]; | |
41 | ||
42 | if (lvm_snprintf(path, sizeof(path), "%s/lvm/global", cmd->proc_dir) | |
43 | < 0) { | |
44 | log_error("LVM1 proc global snprintf failed"); | |
45 | return 0; | |
46 | } | |
47 | ||
48 | if (path_exists(path)) | |
49 | return 1; | |
50 | else | |
51 | return 0; | |
52 | } | |
53 | ||
199e490e AK |
54 | #ifndef DEVMAPPER_SUPPORT |
55 | void set_activation(int act) | |
56 | { | |
f2046e0a AK |
57 | static int warned = 0; |
58 | ||
59 | if (warned || !act) | |
60 | return; | |
61 | ||
62 | log_error("Compiled without libdevmapper support. " | |
63 | "Can't enable activation."); | |
64 | ||
65 | warned = 1; | |
199e490e AK |
66 | } |
67 | int activation(void) | |
68 | { | |
69 | return 0; | |
70 | } | |
71 | int library_version(char *version, size_t size) | |
72 | { | |
73 | return 0; | |
74 | } | |
75 | int driver_version(char *version, size_t size) | |
76 | { | |
77 | return 0; | |
78 | } | |
d1f4953a AK |
79 | int target_present(const char *target_name) |
80 | { | |
81 | return 0; | |
82 | } | |
f894b4b1 | 83 | int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, struct lvinfo *info, |
e9c761b8 | 84 | int with_open_count) |
199e490e AK |
85 | { |
86 | return 0; | |
87 | } | |
4bd9480d | 88 | int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s, |
e9c761b8 | 89 | struct lvinfo *info, int with_open_count) |
4bd9480d AK |
90 | { |
91 | return 0; | |
92 | } | |
199e490e AK |
93 | int lv_snapshot_percent(struct logical_volume *lv, float *percent) |
94 | { | |
95 | return 0; | |
96 | } | |
914c9723 AK |
97 | int lv_mirror_percent(struct logical_volume *lv, int wait, float *percent, |
98 | uint32_t *event_nr) | |
10b29b8d AK |
99 | { |
100 | return 0; | |
101 | } | |
199e490e AK |
102 | int lvs_in_vg_activated(struct volume_group *vg) |
103 | { | |
104 | return 0; | |
105 | } | |
106 | int lvs_in_vg_opened(struct volume_group *vg) | |
107 | { | |
108 | return 0; | |
109 | } | |
658b5812 AK |
110 | int lv_suspend(struct cmd_context *cmd, const char *lvid_s) |
111 | { | |
112 | return 1; | |
113 | } | |
199e490e AK |
114 | int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s) |
115 | { | |
116 | return 1; | |
117 | } | |
658b5812 AK |
118 | int lv_resume(struct cmd_context *cmd, const char *lvid_s) |
119 | { | |
120 | return 1; | |
121 | } | |
199e490e AK |
122 | int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s) |
123 | { | |
124 | return 1; | |
125 | } | |
126 | int lv_deactivate(struct cmd_context *cmd, const char *lvid_s) | |
127 | { | |
128 | return 1; | |
129 | } | |
658b5812 AK |
130 | int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s, |
131 | int *activate_lv) | |
132 | { | |
133 | return 1; | |
134 | } | |
07d31831 | 135 | int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
199e490e AK |
136 | { |
137 | return 1; | |
138 | } | |
07d31831 | 139 | int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 AK |
140 | { |
141 | return 1; | |
142 | } | |
f7dd6d84 AK |
143 | |
144 | int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv) | |
145 | { | |
146 | return 1; | |
147 | } | |
148 | ||
352a99b9 AK |
149 | int pv_uses_vg(struct cmd_context *cmd, struct physical_volume *pv, |
150 | struct volume_group *vg) | |
151 | { | |
152 | return 0; | |
153 | } | |
154 | ||
914c9723 AK |
155 | void activation_exit(void) |
156 | { | |
157 | return; | |
158 | } | |
199e490e AK |
159 | |
160 | #else /* DEVMAPPER_SUPPORT */ | |
161 | ||
d1d9800e AK |
162 | static int _activation = 1; |
163 | ||
8ef2b021 | 164 | void set_activation(int act) |
d1d9800e | 165 | { |
8ef2b021 | 166 | if (act == _activation) |
d1d9800e AK |
167 | return; |
168 | ||
8ef2b021 | 169 | _activation = act; |
d1d9800e AK |
170 | if (_activation) |
171 | log_verbose("Activation enabled. Device-mapper kernel " | |
172 | "driver will be used."); | |
173 | else | |
174 | log_verbose("Activation disabled. No device-mapper " | |
175 | "interaction will be attempted."); | |
176 | } | |
177 | ||
8ef2b021 | 178 | int activation(void) |
d1d9800e AK |
179 | { |
180 | return _activation; | |
181 | } | |
182 | ||
de17d760 AK |
183 | static int _passes_activation_filter(struct cmd_context *cmd, |
184 | struct logical_volume *lv) | |
185 | { | |
25579907 | 186 | const struct config_node *cn; |
de17d760 AK |
187 | struct config_value *cv; |
188 | char *str; | |
189 | char path[PATH_MAX]; | |
190 | ||
814643d8 | 191 | if (!(cn = find_config_node(cmd->cft->root, "activation/volume_list"))) { |
25579907 | 192 | /* If no host tags defined, activate */ |
de17d760 AK |
193 | if (list_empty(&cmd->tags)) |
194 | return 1; | |
195 | ||
196 | /* If any host tag matches any LV or VG tag, activate */ | |
197 | if (str_list_match_list(&cmd->tags, &lv->tags) || | |
198 | str_list_match_list(&cmd->tags, &lv->vg->tags)) | |
199 | return 1; | |
200 | ||
201 | /* Don't activate */ | |
202 | return 0; | |
203 | } | |
204 | ||
205 | for (cv = cn->v; cv; cv = cv->next) { | |
206 | if (cv->type != CFG_STRING) { | |
207 | log_error("Ignoring invalid string in config file " | |
208 | "activation/volume_list"); | |
209 | continue; | |
210 | } | |
211 | str = cv->v.str; | |
212 | if (!*str) { | |
213 | log_error("Ignoring empty string in config file " | |
214 | "activation/volume_list"); | |
215 | continue; | |
216 | } | |
217 | ||
218 | /* Tag? */ | |
219 | if (*str == '@') { | |
220 | str++; | |
221 | if (!*str) { | |
222 | log_error("Ignoring empty tag in config file " | |
223 | "activation/volume_list"); | |
224 | continue; | |
225 | } | |
226 | /* If any host tag matches any LV or VG tag, activate */ | |
227 | if (!strcmp(str, "*")) { | |
228 | if (str_list_match_list(&cmd->tags, &lv->tags) | |
229 | || str_list_match_list(&cmd->tags, | |
230 | &lv->vg->tags)) | |
231 | return 1; | |
232 | else | |
233 | continue; | |
234 | } | |
235 | /* If supplied tag matches LV or VG tag, activate */ | |
236 | if (str_list_match_item(&lv->tags, str) || | |
237 | str_list_match_item(&lv->vg->tags, str)) | |
238 | return 1; | |
239 | else | |
240 | continue; | |
241 | } | |
242 | if (!index(str, '/')) { | |
243 | /* vgname supplied */ | |
244 | if (!strcmp(str, lv->vg->name)) | |
245 | return 1; | |
246 | else | |
247 | continue; | |
248 | } | |
249 | /* vgname/lvname */ | |
250 | if (lvm_snprintf(path, sizeof(path), "%s/%s", lv->vg->name, | |
251 | lv->name) < 0) { | |
252 | log_error("lvm_snprintf error from %s/%s", lv->vg->name, | |
253 | lv->name); | |
254 | continue; | |
255 | } | |
256 | if (!strcmp(path, str)) | |
257 | return 1; | |
258 | } | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
fae0c576 AK |
263 | int library_version(char *version, size_t size) |
264 | { | |
d1d9800e AK |
265 | if (!activation()) |
266 | return 0; | |
267 | ||
f894b4b1 | 268 | return dm_get_library_version(version, size); |
fae0c576 AK |
269 | } |
270 | ||
fae0c576 AK |
271 | int driver_version(char *version, size_t size) |
272 | { | |
d1d9800e AK |
273 | if (!activation()) |
274 | return 0; | |
275 | ||
fae0c576 | 276 | log_very_verbose("Getting driver version"); |
fae0c576 | 277 | |
f894b4b1 | 278 | return dm_driver_version(version, size); |
fae0c576 AK |
279 | } |
280 | ||
f894b4b1 | 281 | static int _target_present(const char *target_name) |
d1f4953a AK |
282 | { |
283 | int r = 0; | |
284 | struct dm_task *dmt; | |
285 | struct dm_versions *target, *last_target; | |
286 | ||
d1f4953a | 287 | log_very_verbose("Getting target version for %s", target_name); |
5f4b2acf AK |
288 | if (!(dmt = dm_task_create(DM_DEVICE_LIST_VERSIONS))) |
289 | return_0; | |
d1f4953a AK |
290 | |
291 | if (!dm_task_run(dmt)) { | |
292 | log_debug("Failed to get %s target version", target_name); | |
293 | /* Assume this was because LIST_VERSIONS isn't supported */ | |
294 | return 1; | |
295 | } | |
296 | ||
297 | target = dm_task_get_versions(dmt); | |
298 | ||
299 | do { | |
300 | last_target = target; | |
301 | ||
302 | if (!strcmp(target_name, target->name)) { | |
303 | r = 1; | |
304 | goto out; | |
305 | } | |
306 | ||
307 | target = (void *) target + target->next; | |
308 | } while (last_target != target); | |
309 | ||
310 | out: | |
311 | dm_task_destroy(dmt); | |
312 | ||
313 | return r; | |
314 | } | |
315 | ||
5f4b2acf | 316 | int target_present(const char *target_name, int use_modprobe) |
f894b4b1 | 317 | { |
03b49fe1 | 318 | #ifdef MODPROBE_CMD |
f894b4b1 | 319 | char module[128]; |
03b49fe1 | 320 | #endif |
f894b4b1 AK |
321 | |
322 | if (!activation()) | |
323 | return 0; | |
324 | ||
325 | #ifdef MODPROBE_CMD | |
5f4b2acf AK |
326 | if (use_modprobe) { |
327 | if (_target_present(target_name)) | |
328 | return 1; | |
f894b4b1 | 329 | |
5f4b2acf AK |
330 | if (lvm_snprintf(module, sizeof(module), "dm-%s", target_name) |
331 | < 0) { | |
332 | log_error("target_present module name too long: %s", | |
333 | target_name); | |
334 | return 0; | |
335 | } | |
f894b4b1 | 336 | |
5f4b2acf AK |
337 | if (!exec_cmd(MODPROBE_CMD, module, "", "")) |
338 | return_0; | |
f894b4b1 AK |
339 | } |
340 | #endif | |
341 | ||
342 | return _target_present(target_name); | |
343 | } | |
344 | ||
de6c9183 JT |
345 | /* |
346 | * Returns 1 if info structure populated, else 0 on failure. | |
347 | */ | |
f894b4b1 | 348 | static int _lv_info(struct cmd_context *cmd, const struct logical_volume *lv, int with_mknodes, |
e9c761b8 | 349 | struct lvinfo *info, int with_open_count) |
37ed70b9 | 350 | { |
199e490e | 351 | struct dm_info dminfo; |
f894b4b1 | 352 | char *name; |
4a624ca0 | 353 | |
d1d9800e AK |
354 | if (!activation()) |
355 | return 0; | |
356 | ||
5f4b2acf AK |
357 | if (!(name = build_dm_name(cmd->mem, lv->vg->name, lv->name, NULL))) |
358 | return_0; | |
4a624ca0 | 359 | |
f894b4b1 | 360 | log_debug("Getting device info for %s", name); |
03b49fe1 AK |
361 | if (!dev_manager_info(lv->vg->cmd->mem, name, lv, with_mknodes, |
362 | with_open_count, &dminfo)) { | |
f894b4b1 | 363 | dm_pool_free(cmd->mem, name); |
5f4b2acf | 364 | return_0; |
f894b4b1 | 365 | } |
4a624ca0 | 366 | |
199e490e AK |
367 | info->exists = dminfo.exists; |
368 | info->suspended = dminfo.suspended; | |
369 | info->open_count = dminfo.open_count; | |
370 | info->major = dminfo.major; | |
371 | info->minor = dminfo.minor; | |
372 | info->read_only = dminfo.read_only; | |
5f4b2acf AK |
373 | info->live_table = dminfo.live_table; |
374 | info->inactive_table = dminfo.inactive_table; | |
199e490e | 375 | |
f894b4b1 AK |
376 | dm_pool_free(cmd->mem, name); |
377 | return 1; | |
de6c9183 | 378 | } |
a62ee8ad | 379 | |
f894b4b1 | 380 | int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, struct lvinfo *info, |
e9c761b8 | 381 | int with_open_count) |
8c0388e4 | 382 | { |
f894b4b1 | 383 | return _lv_info(cmd, lv, 0, info, with_open_count); |
8c0388e4 AK |
384 | } |
385 | ||
4bd9480d | 386 | int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s, |
e9c761b8 | 387 | struct lvinfo *info, int with_open_count) |
4bd9480d AK |
388 | { |
389 | struct logical_volume *lv; | |
390 | ||
7a593325 | 391 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
4bd9480d AK |
392 | return 0; |
393 | ||
f894b4b1 | 394 | return _lv_info(cmd, lv, 0, info, with_open_count); |
4bd9480d AK |
395 | } |
396 | ||
1951dba9 AL |
397 | /* |
398 | * Returns 1 if percent set, else 0 on failure. | |
399 | */ | |
c826c0d1 | 400 | int lv_snapshot_percent(struct logical_volume *lv, float *percent) |
1951dba9 AL |
401 | { |
402 | int r; | |
403 | struct dev_manager *dm; | |
404 | ||
d1d9800e AK |
405 | if (!activation()) |
406 | return 0; | |
407 | ||
5f4b2acf AK |
408 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
409 | return_0; | |
1951dba9 | 410 | |
c826c0d1 | 411 | if (!(r = dev_manager_snapshot_percent(dm, lv, percent))) |
1951dba9 | 412 | stack; |
c826c0d1 | 413 | |
1951dba9 AL |
414 | dev_manager_destroy(dm); |
415 | ||
416 | return r; | |
417 | } | |
418 | ||
10b29b8d | 419 | /* FIXME Merge with snapshot_percent */ |
f894b4b1 | 420 | int lv_mirror_percent(struct cmd_context *cmd, struct logical_volume *lv, int wait, float *percent, |
10b29b8d AK |
421 | uint32_t *event_nr) |
422 | { | |
423 | int r; | |
424 | struct dev_manager *dm; | |
b65b777d | 425 | struct lvinfo info; |
10b29b8d AK |
426 | |
427 | if (!activation()) | |
428 | return 0; | |
429 | ||
5f4b2acf AK |
430 | if (!lv_info(cmd, lv, &info, 0)) |
431 | return_0; | |
b65b777d AK |
432 | |
433 | if (!info.exists) | |
434 | return 0; | |
435 | ||
5f4b2acf AK |
436 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
437 | return_0; | |
10b29b8d AK |
438 | |
439 | if (!(r = dev_manager_mirror_percent(dm, lv, wait, percent, event_nr))) | |
440 | stack; | |
441 | ||
442 | dev_manager_destroy(dm); | |
443 | ||
444 | return r; | |
445 | } | |
446 | ||
f894b4b1 | 447 | static int _lv_active(struct cmd_context *cmd, struct logical_volume *lv) |
2ba80b43 | 448 | { |
199e490e | 449 | struct lvinfo info; |
2ba80b43 | 450 | |
f894b4b1 | 451 | if (!lv_info(cmd, lv, &info, 0)) { |
2ba80b43 | 452 | stack; |
de6c9183 | 453 | return -1; |
2ba80b43 JT |
454 | } |
455 | ||
de6c9183 | 456 | return info.exists; |
2ba80b43 JT |
457 | } |
458 | ||
f894b4b1 | 459 | static int _lv_open_count(struct cmd_context *cmd, struct logical_volume *lv) |
5986ec94 | 460 | { |
199e490e | 461 | struct lvinfo info; |
5986ec94 | 462 | |
f894b4b1 | 463 | if (!lv_info(cmd, lv, &info, 1)) { |
5986ec94 | 464 | stack; |
de6c9183 | 465 | return -1; |
5986ec94 JT |
466 | } |
467 | ||
de6c9183 | 468 | return info.open_count; |
5986ec94 JT |
469 | } |
470 | ||
658b5812 | 471 | static int _lv_activate_lv(struct logical_volume *lv) |
b1713d28 | 472 | { |
6d52fb46 | 473 | int r; |
de6c9183 | 474 | struct dev_manager *dm; |
b1713d28 | 475 | |
5f4b2acf AK |
476 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
477 | return_0; | |
ae2bb665 | 478 | |
0fe3a2c5 | 479 | if (!(r = dev_manager_activate(dm, lv))) |
6d52fb46 | 480 | stack; |
ae2bb665 | 481 | |
de6c9183 | 482 | dev_manager_destroy(dm); |
ae2bb665 | 483 | return r; |
b1713d28 | 484 | } |
a381c45a | 485 | |
5f4b2acf | 486 | static int _lv_preload(struct logical_volume *lv) |
0a5e4a14 | 487 | { |
de6c9183 JT |
488 | int r; |
489 | struct dev_manager *dm; | |
37ed70b9 | 490 | |
5f4b2acf AK |
491 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
492 | return_0; | |
493 | ||
494 | if (!(r = dev_manager_preload(dm, lv))) | |
6d52fb46 | 495 | stack; |
5f4b2acf AK |
496 | |
497 | dev_manager_destroy(dm); | |
498 | return r; | |
499 | } | |
500 | ||
501 | static int _lv_deactivate(struct logical_volume *lv) | |
502 | { | |
503 | int r; | |
504 | struct dev_manager *dm; | |
505 | ||
506 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) | |
507 | return_0; | |
37ed70b9 | 508 | |
de6c9183 | 509 | if (!(r = dev_manager_deactivate(dm, lv))) |
37ed70b9 | 510 | stack; |
37ed70b9 | 511 | |
de6c9183 JT |
512 | dev_manager_destroy(dm); |
513 | return r; | |
37ed70b9 JT |
514 | } |
515 | ||
658b5812 | 516 | static int _lv_suspend_lv(struct logical_volume *lv) |
4a624ca0 | 517 | { |
20c5fcf7 AK |
518 | int r; |
519 | struct dev_manager *dm; | |
c2d72fd4 | 520 | |
5f4b2acf AK |
521 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
522 | return_0; | |
0a5e4a14 | 523 | |
20c5fcf7 | 524 | if (!(r = dev_manager_suspend(dm, lv))) |
37ed70b9 | 525 | stack; |
0a5e4a14 | 526 | |
20c5fcf7 AK |
527 | dev_manager_destroy(dm); |
528 | return r; | |
6d52fb46 | 529 | } |
4a624ca0 | 530 | |
8c013da4 | 531 | /* |
f75c11ed | 532 | * These two functions return the number of visible LVs in the state, |
8c013da4 AK |
533 | * or -1 on error. |
534 | */ | |
f047219b AK |
535 | int lvs_in_vg_activated(struct volume_group *vg) |
536 | { | |
60f13f01 | 537 | struct lv_list *lvl; |
94b8220f | 538 | int count = 0; |
37ed70b9 | 539 | |
d1d9800e AK |
540 | if (!activation()) |
541 | return 0; | |
542 | ||
60f13f01 AK |
543 | list_iterate_items(lvl, &vg->lvs) { |
544 | if (lvl->lv->status & VISIBLE_LV) | |
f894b4b1 | 545 | count += (_lv_active(vg->cmd, lvl->lv) == 1); |
37ed70b9 JT |
546 | } |
547 | ||
548 | return count; | |
f047219b | 549 | } |
2ba80b43 JT |
550 | |
551 | int lvs_in_vg_opened(struct volume_group *vg) | |
552 | { | |
60f13f01 | 553 | struct lv_list *lvl; |
94b8220f | 554 | int count = 0; |
2ba80b43 | 555 | |
d1d9800e AK |
556 | if (!activation()) |
557 | return 0; | |
558 | ||
60f13f01 AK |
559 | list_iterate_items(lvl, &vg->lvs) { |
560 | if (lvl->lv->status & VISIBLE_LV) | |
f894b4b1 | 561 | count += (_lv_open_count(vg->cmd, lvl->lv) > 0); |
2ba80b43 JT |
562 | } |
563 | ||
564 | return count; | |
565 | } | |
413cc918 | 566 | |
15d91f5a AK |
567 | #ifdef DMEVENTD |
568 | static int _register_dev(struct cmd_context *cmd, struct logical_volume *lv, | |
569 | int do_reg) | |
570 | { | |
571 | ||
572 | struct list *tmp; | |
573 | struct lv_segment *seg; | |
574 | int (*reg) (struct dm_pool *mem, struct lv_segment *, | |
575 | struct config_tree *cft, int events); | |
576 | ||
577 | list_iterate(tmp, &lv->segments) { | |
578 | seg = list_item(tmp, struct lv_segment); | |
579 | ||
e6493477 AK |
580 | if (do_reg) { |
581 | if (seg->segtype->ops->target_register_events) | |
582 | reg = seg->segtype->ops->target_register_events; | |
583 | } else if(seg->setype->ops->target_unregister_events) | |
584 | reg = seg->segtype->ops->target_unregister_events; | |
15d91f5a AK |
585 | |
586 | if (reg) | |
587 | /* FIXME specify events */ | |
588 | if (!reg(cmd->mem, seg, cmd->cft, 0)) { | |
589 | stack; | |
590 | return 0; | |
591 | } | |
592 | } | |
e6493477 | 593 | |
15d91f5a AK |
594 | return 1; |
595 | } | |
596 | #endif | |
597 | ||
658b5812 AK |
598 | static int _lv_suspend(struct cmd_context *cmd, const char *lvid_s, |
599 | int error_if_not_suspended) | |
413cc918 AK |
600 | { |
601 | struct logical_volume *lv; | |
199e490e | 602 | struct lvinfo info; |
413cc918 | 603 | |
d1d9800e AK |
604 | if (!activation()) |
605 | return 1; | |
606 | ||
7a593325 AK |
607 | /* Use precommitted metadata if present */ |
608 | if (!(lv = lv_from_lvid(cmd, lvid_s, 1))) | |
413cc918 AK |
609 | return 0; |
610 | ||
20c5fcf7 AK |
611 | if (test_mode()) { |
612 | _skip("Suspending '%s'.", lv->name); | |
711f7fc6 | 613 | return 1; |
20c5fcf7 AK |
614 | } |
615 | ||
5f4b2acf AK |
616 | if (!lv_info(cmd, lv, &info, 0)) |
617 | return_0; | |
41967a02 | 618 | |
914c9723 | 619 | if (!info.exists || info.suspended) |
658b5812 | 620 | return error_if_not_suspended ? 0 : 1; |
914c9723 | 621 | |
5f4b2acf AK |
622 | /* If VG was precommitted, preload devices for the LV */ |
623 | if ((lv->vg->status & PRECOMMITTED)) { | |
624 | if (!_lv_preload(lv)) { | |
625 | /* FIXME Revert preloading */ | |
626 | return_0; | |
627 | } | |
628 | } | |
629 | ||
15d91f5a AK |
630 | #ifdef DMEVENTD |
631 | _register_dev(cmd, lv, 0); | |
632 | #endif | |
914c9723 | 633 | memlock_inc(); |
658b5812 | 634 | if (!_lv_suspend_lv(lv)) { |
914c9723 AK |
635 | memlock_dec(); |
636 | fs_unlock(); | |
637 | return 0; | |
638 | } | |
8c013da4 | 639 | |
413cc918 AK |
640 | return 1; |
641 | } | |
642 | ||
658b5812 AK |
643 | /* Returns success if the device is not active */ |
644 | int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s) | |
645 | { | |
646 | return _lv_suspend(cmd, lvid_s, 0); | |
647 | } | |
648 | ||
649 | int lv_suspend(struct cmd_context *cmd, const char *lvid_s) | |
650 | { | |
651 | return _lv_suspend(cmd, lvid_s, 1); | |
652 | } | |
653 | ||
654 | static int _lv_resume(struct cmd_context *cmd, const char *lvid_s, | |
655 | int error_if_not_active) | |
413cc918 AK |
656 | { |
657 | struct logical_volume *lv; | |
199e490e | 658 | struct lvinfo info; |
413cc918 | 659 | |
d1d9800e AK |
660 | if (!activation()) |
661 | return 1; | |
662 | ||
7a593325 | 663 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
413cc918 AK |
664 | return 0; |
665 | ||
20c5fcf7 AK |
666 | if (test_mode()) { |
667 | _skip("Resuming '%s'.", lv->name); | |
711f7fc6 | 668 | return 1; |
20c5fcf7 AK |
669 | } |
670 | ||
5f4b2acf AK |
671 | if (!lv_info(cmd, lv, &info, 0)) |
672 | return_0; | |
41967a02 | 673 | |
914c9723 | 674 | if (!info.exists || !info.suspended) |
658b5812 | 675 | return error_if_not_active ? 0 : 1; |
914c9723 | 676 | |
658b5812 | 677 | if (!_lv_activate_lv(lv)) |
914c9723 AK |
678 | return 0; |
679 | ||
680 | memlock_dec(); | |
681 | fs_unlock(); | |
413cc918 | 682 | |
15d91f5a AK |
683 | #ifdef DMEVENTD |
684 | _register_dev(cmd, lv, 1); | |
685 | #endif | |
686 | ||
413cc918 AK |
687 | return 1; |
688 | } | |
689 | ||
658b5812 AK |
690 | /* Returns success if the device is not active */ |
691 | int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s) | |
692 | { | |
693 | return _lv_resume(cmd, lvid_s, 0); | |
694 | } | |
695 | ||
696 | int lv_resume(struct cmd_context *cmd, const char *lvid_s) | |
697 | { | |
698 | return _lv_resume(cmd, lvid_s, 1); | |
699 | } | |
700 | ||
be326a2f | 701 | int lv_deactivate(struct cmd_context *cmd, const char *lvid_s) |
f4cbeaf0 AK |
702 | { |
703 | struct logical_volume *lv; | |
199e490e | 704 | struct lvinfo info; |
914c9723 | 705 | int r; |
f4cbeaf0 | 706 | |
d1d9800e AK |
707 | if (!activation()) |
708 | return 1; | |
709 | ||
7a593325 | 710 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
f4cbeaf0 AK |
711 | return 0; |
712 | ||
20c5fcf7 AK |
713 | if (test_mode()) { |
714 | _skip("Deactivating '%s'.", lv->name); | |
711f7fc6 | 715 | return 1; |
20c5fcf7 AK |
716 | } |
717 | ||
5f4b2acf AK |
718 | if (!lv_info(cmd, lv, &info, 1)) |
719 | return_0; | |
41967a02 | 720 | |
914c9723 AK |
721 | if (!info.exists) |
722 | return 1; | |
f4cbeaf0 | 723 | |
c1f50521 | 724 | if (info.open_count && (lv->status & VISIBLE_LV)) { |
5f4b2acf | 725 | log_error("LV %s/%s in use: not deactivating", lv->vg->name, |
0cf96f33 AK |
726 | lv->name); |
727 | return 0; | |
728 | } | |
729 | ||
15d91f5a AK |
730 | #ifdef DMEVENTD |
731 | _register_dev(cmd, lv, 0); | |
732 | #endif | |
733 | ||
914c9723 AK |
734 | memlock_inc(); |
735 | r = _lv_deactivate(lv); | |
736 | memlock_dec(); | |
737 | fs_unlock(); | |
738 | ||
739 | return r; | |
f4cbeaf0 AK |
740 | } |
741 | ||
658b5812 AK |
742 | /* Test if LV passes filter */ |
743 | int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s, | |
744 | int *activate_lv) | |
745 | { | |
746 | struct logical_volume *lv; | |
747 | ||
748 | if (!activation()) | |
749 | goto activate; | |
750 | ||
7a593325 | 751 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
658b5812 AK |
752 | return 0; |
753 | ||
754 | if (!_passes_activation_filter(cmd, lv)) { | |
755 | log_verbose("Not activating %s/%s due to config file settings", | |
756 | lv->vg->name, lv->name); | |
757 | *activate_lv = 0; | |
758 | return 1; | |
759 | } | |
760 | ||
761 | activate: | |
762 | *activate_lv = 1; | |
763 | return 1; | |
764 | } | |
765 | ||
07d31831 AK |
766 | static int _lv_activate(struct cmd_context *cmd, const char *lvid_s, |
767 | int exclusive, int filter) | |
f4cbeaf0 AK |
768 | { |
769 | struct logical_volume *lv; | |
199e490e | 770 | struct lvinfo info; |
914c9723 | 771 | int r; |
f4cbeaf0 | 772 | |
d1d9800e AK |
773 | if (!activation()) |
774 | return 1; | |
775 | ||
7a593325 | 776 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
f4cbeaf0 AK |
777 | return 0; |
778 | ||
658b5812 | 779 | if (filter && !_passes_activation_filter(cmd, lv)) { |
de17d760 AK |
780 | log_verbose("Not activating %s/%s due to config file settings", |
781 | lv->vg->name, lv->name); | |
782 | return 0; | |
783 | } | |
784 | ||
20c5fcf7 AK |
785 | if (test_mode()) { |
786 | _skip("Activating '%s'.", lv->name); | |
711f7fc6 | 787 | return 1; |
20c5fcf7 AK |
788 | } |
789 | ||
5f4b2acf AK |
790 | if (!lv_info(cmd, lv, &info, 0)) |
791 | return_0; | |
8c013da4 | 792 | |
5f4b2acf | 793 | if (info.exists && !info.suspended && info.live_table) |
914c9723 | 794 | return 1; |
f4cbeaf0 | 795 | |
07d31831 AK |
796 | if (exclusive) |
797 | lv->status |= ACTIVATE_EXCL; | |
798 | ||
914c9723 | 799 | memlock_inc(); |
658b5812 | 800 | r = _lv_activate_lv(lv); |
914c9723 AK |
801 | memlock_dec(); |
802 | fs_unlock(); | |
803 | ||
15d91f5a AK |
804 | #ifdef DMEVENTD |
805 | _register_dev(cmd, lv, 1); | |
806 | #endif | |
807 | ||
914c9723 | 808 | return r; |
f4cbeaf0 | 809 | } |
199e490e | 810 | |
658b5812 | 811 | /* Activate LV */ |
07d31831 | 812 | int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 | 813 | { |
07d31831 | 814 | return _lv_activate(cmd, lvid_s, exclusive, 0); |
658b5812 AK |
815 | } |
816 | ||
817 | /* Activate LV only if it passes filter */ | |
07d31831 | 818 | int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 | 819 | { |
07d31831 | 820 | return _lv_activate(cmd, lvid_s, exclusive, 1); |
658b5812 AK |
821 | } |
822 | ||
f7dd6d84 AK |
823 | int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv) |
824 | { | |
825 | struct lvinfo info; | |
826 | int r = 1; | |
827 | ||
8b076648 | 828 | if (!lv) { |
2262b320 | 829 | r = dm_mknodes(NULL); |
8b076648 AK |
830 | fs_unlock(); |
831 | return r; | |
832 | } | |
833 | ||
5f4b2acf AK |
834 | if (!_lv_info(cmd, lv, 1, &info, 0)) |
835 | return_0; | |
f7dd6d84 AK |
836 | |
837 | if (info.exists) | |
f09fe0ad | 838 | r = dev_manager_lv_mknodes(lv); |
f7dd6d84 | 839 | else |
f09fe0ad | 840 | r = dev_manager_lv_rmnodes(lv); |
f7dd6d84 AK |
841 | |
842 | fs_unlock(); | |
843 | ||
844 | return r; | |
845 | } | |
846 | ||
352a99b9 AK |
847 | /* |
848 | * Does PV use VG somewhere in its construction? | |
849 | * Returns 1 on failure. | |
850 | */ | |
851 | int pv_uses_vg(struct cmd_context *cmd, struct physical_volume *pv, | |
852 | struct volume_group *vg) | |
853 | { | |
854 | struct dev_manager *dm; | |
855 | int r; | |
856 | ||
857 | if (!activation()) | |
858 | return 0; | |
859 | ||
860 | if (!dm_is_dm_major(MAJOR(pv->dev->dev))) | |
861 | return 0; | |
862 | ||
863 | if (!(dm = dev_manager_create(cmd, vg->name))) { | |
864 | stack; | |
865 | return 1; | |
866 | } | |
867 | ||
868 | r = dev_manager_device_uses_vg(dm, pv->dev, vg); | |
869 | ||
870 | dev_manager_destroy(dm); | |
871 | ||
872 | return r; | |
873 | } | |
874 | ||
914c9723 AK |
875 | void activation_exit(void) |
876 | { | |
877 | dev_manager_exit(); | |
878 | } | |
199e490e | 879 | #endif |