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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
07b0b134 ML |
2 | |
3 | #include <errno.h> | |
07b0b134 ML |
4 | #include <sys/epoll.h> |
5 | #include <sys/stat.h> | |
4f5dd394 | 6 | #include <unistd.h> |
07b0b134 | 7 | |
b4bbcaa9 TA |
8 | #include "libudev.h" |
9 | ||
b5efdb8a | 10 | #include "alloc-util.h" |
07b0b134 | 11 | #include "dbus-swap.h" |
57b7a260 | 12 | #include "device.h" |
4f5dd394 | 13 | #include "escape.h" |
9a57c629 | 14 | #include "exit-status.h" |
3ffd4af2 | 15 | #include "fd-util.h" |
f97b34a6 | 16 | #include "format-util.h" |
4f5dd394 | 17 | #include "fstab-util.h" |
6bedfcbb | 18 | #include "parse-util.h" |
9eb977db | 19 | #include "path-util.h" |
7b3e062c | 20 | #include "process-util.h" |
4f5dd394 | 21 | #include "special.h" |
8b43440b | 22 | #include "string-table.h" |
07630cea | 23 | #include "string-util.h" |
3ffd4af2 | 24 | #include "swap.h" |
5bcb0f2b | 25 | #include "udev-util.h" |
4f5dd394 LP |
26 | #include "unit-name.h" |
27 | #include "unit.h" | |
28 | #include "virt.h" | |
07b0b134 ML |
29 | |
30 | static const UnitActiveState state_translation_table[_SWAP_STATE_MAX] = { | |
31 | [SWAP_DEAD] = UNIT_INACTIVE, | |
e04aad61 | 32 | [SWAP_ACTIVATING] = UNIT_ACTIVATING, |
5bcb0f2b | 33 | [SWAP_ACTIVATING_DONE] = UNIT_ACTIVE, |
07b0b134 | 34 | [SWAP_ACTIVE] = UNIT_ACTIVE, |
e04aad61 | 35 | [SWAP_DEACTIVATING] = UNIT_DEACTIVATING, |
e04aad61 LP |
36 | [SWAP_DEACTIVATING_SIGTERM] = UNIT_DEACTIVATING, |
37 | [SWAP_DEACTIVATING_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 38 | [SWAP_FAILED] = UNIT_FAILED |
07b0b134 ML |
39 | }; |
40 | ||
718db961 LP |
41 | static int swap_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
42 | static int swap_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata); | |
43 | ||
dedf3719 LP |
44 | static bool SWAP_STATE_WITH_PROCESS(SwapState state) { |
45 | return IN_SET(state, | |
46 | SWAP_ACTIVATING, | |
47 | SWAP_ACTIVATING_DONE, | |
48 | SWAP_DEACTIVATING, | |
49 | SWAP_DEACTIVATING_SIGTERM, | |
50 | SWAP_DEACTIVATING_SIGKILL); | |
51 | } | |
52 | ||
e04aad61 | 53 | static void swap_unset_proc_swaps(Swap *s) { |
9670d583 LP |
54 | assert(s); |
55 | ||
56 | if (!s->from_proc_swaps) | |
57 | return; | |
58 | ||
a1e58e8e | 59 | s->parameters_proc_swaps.what = mfree(s->parameters_proc_swaps.what); |
9670d583 LP |
60 | |
61 | s->from_proc_swaps = false; | |
62 | } | |
63 | ||
64 | static int swap_set_devnode(Swap *s, const char *devnode) { | |
df326b84 | 65 | Hashmap *swaps; |
5bcb0f2b | 66 | Swap *first; |
9670d583 | 67 | int r; |
e04aad61 LP |
68 | |
69 | assert(s); | |
70 | ||
548f6937 | 71 | r = hashmap_ensure_allocated(&UNIT(s)->manager->swaps_by_devnode, &path_hash_ops); |
9670d583 LP |
72 | if (r < 0) |
73 | return r; | |
e04aad61 | 74 | |
9670d583 | 75 | swaps = UNIT(s)->manager->swaps_by_devnode; |
e04aad61 | 76 | |
9670d583 LP |
77 | if (s->devnode) { |
78 | first = hashmap_get(swaps, s->devnode); | |
e04aad61 | 79 | |
9670d583 LP |
80 | LIST_REMOVE(same_devnode, first, s); |
81 | if (first) | |
82 | hashmap_replace(swaps, first->devnode, first); | |
83 | else | |
84 | hashmap_remove(swaps, s->devnode); | |
5bcb0f2b | 85 | |
a1e58e8e | 86 | s->devnode = mfree(s->devnode); |
9670d583 LP |
87 | } |
88 | ||
89 | if (devnode) { | |
90 | s->devnode = strdup(devnode); | |
91 | if (!s->devnode) | |
92 | return -ENOMEM; | |
93 | ||
94 | first = hashmap_get(swaps, s->devnode); | |
95 | LIST_PREPEND(same_devnode, first, s); | |
96 | ||
97 | return hashmap_replace(swaps, first->devnode, first); | |
98 | } | |
99 | ||
100 | return 0; | |
e04aad61 LP |
101 | } |
102 | ||
f6cebb3b | 103 | static void swap_init(Unit *u) { |
6e620bec LP |
104 | Swap *s = SWAP(u); |
105 | ||
106 | assert(s); | |
1124fe6f | 107 | assert(UNIT(s)->load_state == UNIT_STUB); |
6e620bec | 108 | |
1f19a534 | 109 | s->timeout_usec = u->manager->default_timeout_start_usec; |
e04aad61 | 110 | |
ac155bb8 MS |
111 | s->exec_context.std_output = u->manager->default_std_output; |
112 | s->exec_context.std_error = u->manager->default_std_error; | |
085afe36 | 113 | |
6b1dc2bd | 114 | s->parameters_proc_swaps.priority = s->parameters_fragment.priority = -1; |
e04aad61 | 115 | |
e1770af8 | 116 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; |
c8f4d764 | 117 | |
5bcb0f2b | 118 | u->ignore_on_isolate = true; |
e04aad61 LP |
119 | } |
120 | ||
121 | static void swap_unwatch_control_pid(Swap *s) { | |
122 | assert(s); | |
123 | ||
124 | if (s->control_pid <= 0) | |
125 | return; | |
126 | ||
127 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
128 | s->control_pid = 0; | |
6e620bec LP |
129 | } |
130 | ||
4e85aff4 LP |
131 | static void swap_done(Unit *u) { |
132 | Swap *s = SWAP(u); | |
07b0b134 | 133 | |
4e85aff4 | 134 | assert(s); |
07b0b134 | 135 | |
e04aad61 | 136 | swap_unset_proc_swaps(s); |
9670d583 | 137 | swap_set_devnode(s, NULL); |
e04aad61 | 138 | |
a1e58e8e LP |
139 | s->what = mfree(s->what); |
140 | s->parameters_fragment.what = mfree(s->parameters_fragment.what); | |
141 | s->parameters_fragment.options = mfree(s->parameters_fragment.options); | |
86b23b07 | 142 | |
e8a565cb | 143 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, false); |
e04aad61 LP |
144 | exec_command_done_array(s->exec_command, _SWAP_EXEC_COMMAND_MAX); |
145 | s->control_command = NULL; | |
146 | ||
29206d46 LP |
147 | dynamic_creds_unref(&s->dynamic_creds); |
148 | ||
e04aad61 LP |
149 | swap_unwatch_control_pid(s); |
150 | ||
718db961 LP |
151 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
152 | } | |
153 | ||
36c16a7c | 154 | static int swap_arm_timer(Swap *s, usec_t usec) { |
718db961 LP |
155 | int r; |
156 | ||
157 | assert(s); | |
158 | ||
718db961 | 159 | if (s->timer_event_source) { |
36c16a7c | 160 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
161 | if (r < 0) |
162 | return r; | |
163 | ||
164 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
165 | } | |
166 | ||
36c16a7c LP |
167 | if (usec == USEC_INFINITY) |
168 | return 0; | |
169 | ||
7dfbe2e3 | 170 | r = sd_event_add_time( |
6a0f1f6d LP |
171 | UNIT(s)->manager->event, |
172 | &s->timer_event_source, | |
173 | CLOCK_MONOTONIC, | |
36c16a7c | 174 | usec, 0, |
6a0f1f6d | 175 | swap_dispatch_timer, s); |
7dfbe2e3 TG |
176 | if (r < 0) |
177 | return r; | |
178 | ||
179 | (void) sd_event_source_set_description(s->timer_event_source, "swap-timer"); | |
180 | ||
181 | return 0; | |
07b0b134 ML |
182 | } |
183 | ||
eef85c4a | 184 | static int swap_add_device_dependencies(Swap *s) { |
173a8d04 LP |
185 | assert(s); |
186 | ||
187 | if (!s->what) | |
188 | return 0; | |
189 | ||
f10af76d LP |
190 | if (!s->from_fragment) |
191 | return 0; | |
192 | ||
cfcfd4ae | 193 | if (is_device_path(s->what)) |
eef85c4a | 194 | return unit_add_node_dependency(UNIT(s), s->what, MANAGER_IS_SYSTEM(UNIT(s)->manager), UNIT_BINDS_TO, UNIT_DEPENDENCY_FILE); |
cfcfd4ae LP |
195 | else |
196 | /* File based swap devices need to be ordered after | |
2b93b027 | 197 | * systemd-remount-fs.service, since they might need a |
cfcfd4ae | 198 | * writable file system. */ |
eef85c4a | 199 | return unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_REMOUNT_FS_SERVICE, NULL, true, UNIT_DEPENDENCY_FILE); |
173a8d04 LP |
200 | } |
201 | ||
2edd4434 | 202 | static int swap_add_default_dependencies(Swap *s) { |
8bf23dc7 FB |
203 | int r; |
204 | ||
2edd4434 LP |
205 | assert(s); |
206 | ||
4c9ea260 LP |
207 | if (!UNIT(s)->default_dependencies) |
208 | return 0; | |
209 | ||
463d0d15 | 210 | if (!MANAGER_IS_SYSTEM(UNIT(s)->manager)) |
6b1dc2bd | 211 | return 0; |
2edd4434 | 212 | |
75f86906 | 213 | if (detect_container() > 0) |
c0387ebf LP |
214 | return 0; |
215 | ||
8bf23dc7 FB |
216 | /* swap units generated for the swap dev links are missing the |
217 | * ordering dep against the swap target. */ | |
eef85c4a | 218 | r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SWAP_TARGET, NULL, true, UNIT_DEPENDENCY_DEFAULT); |
8bf23dc7 FB |
219 | if (r < 0) |
220 | return r; | |
221 | ||
eef85c4a | 222 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true, UNIT_DEPENDENCY_DEFAULT); |
2edd4434 LP |
223 | } |
224 | ||
4e85aff4 | 225 | static int swap_verify(Swap *s) { |
7fd1b19b | 226 | _cleanup_free_ char *e = NULL; |
7410616c | 227 | int r; |
4e85aff4 | 228 | |
1124fe6f | 229 | if (UNIT(s)->load_state != UNIT_LOADED) |
5bcb0f2b | 230 | return 0; |
4e85aff4 | 231 | |
7410616c LP |
232 | r = unit_name_from_path(s->what, ".swap", &e); |
233 | if (r < 0) | |
f2341e0a | 234 | return log_unit_error_errno(UNIT(s), r, "Failed to generate unit name from path: %m"); |
4e85aff4 | 235 | |
7410616c | 236 | if (!unit_has_name(UNIT(s), e)) { |
f2341e0a | 237 | log_unit_error(UNIT(s), "Value of What= and unit name do not match, not loading."); |
6f40aa45 | 238 | return -ENOEXEC; |
4e85aff4 LP |
239 | } |
240 | ||
4819ff03 | 241 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { |
f2341e0a | 242 | log_unit_error(UNIT(s), "Unit has PAM enabled. Kill mode must be set to 'control-group'. Refusing to load."); |
6f40aa45 | 243 | return -ENOEXEC; |
e04aad61 LP |
244 | } |
245 | ||
4e85aff4 LP |
246 | return 0; |
247 | } | |
248 | ||
9670d583 | 249 | static int swap_load_devnode(Swap *s) { |
8e766630 | 250 | _cleanup_(udev_device_unrefp) struct udev_device *d = NULL; |
9670d583 LP |
251 | struct stat st; |
252 | const char *p; | |
e5ca27b7 | 253 | int r; |
9670d583 LP |
254 | |
255 | assert(s); | |
256 | ||
257 | if (stat(s->what, &st) < 0 || !S_ISBLK(st.st_mode)) | |
258 | return 0; | |
259 | ||
e5ca27b7 LP |
260 | r = udev_device_new_from_stat_rdev(UNIT(s)->manager->udev, &st, &d); |
261 | if (r < 0) { | |
262 | log_unit_full(UNIT(s), r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, | |
263 | "Failed to allocate udev device for swap %s: %m", s->what); | |
9670d583 | 264 | return 0; |
e5ca27b7 | 265 | } |
9670d583 LP |
266 | |
267 | p = udev_device_get_devnode(d); | |
268 | if (!p) | |
269 | return 0; | |
270 | ||
271 | return swap_set_devnode(s, p); | |
272 | } | |
273 | ||
07b0b134 ML |
274 | static int swap_load(Unit *u) { |
275 | int r; | |
276 | Swap *s = SWAP(u); | |
277 | ||
278 | assert(s); | |
ac155bb8 | 279 | assert(u->load_state == UNIT_STUB); |
07b0b134 ML |
280 | |
281 | /* Load a .swap file */ | |
3000f850 YW |
282 | if (SWAP(u)->from_proc_swaps) |
283 | r = unit_load_fragment_and_dropin_optional(u); | |
284 | else | |
285 | r = unit_load_fragment_and_dropin(u); | |
646134dc | 286 | if (r < 0) |
07b0b134 ML |
287 | return r; |
288 | ||
ac155bb8 | 289 | if (u->load_state == UNIT_LOADED) { |
4e85aff4 | 290 | |
1124fe6f | 291 | if (UNIT(s)->fragment_path) |
4e85aff4 LP |
292 | s->from_fragment = true; |
293 | ||
294 | if (!s->what) { | |
295 | if (s->parameters_fragment.what) | |
296 | s->what = strdup(s->parameters_fragment.what); | |
4e85aff4 LP |
297 | else if (s->parameters_proc_swaps.what) |
298 | s->what = strdup(s->parameters_proc_swaps.what); | |
7410616c LP |
299 | else { |
300 | r = unit_name_to_path(u->id, &s->what); | |
301 | if (r < 0) | |
302 | return r; | |
303 | } | |
4e85aff4 LP |
304 | |
305 | if (!s->what) | |
07b0b134 | 306 | return -ENOMEM; |
4e85aff4 | 307 | } |
07b0b134 | 308 | |
858d36c1 | 309 | path_simplify(s->what, false); |
07b0b134 | 310 | |
5bcb0f2b LP |
311 | if (!UNIT(s)->description) { |
312 | r = unit_set_description(u, s->what); | |
313 | if (r < 0) | |
4e85aff4 | 314 | return r; |
5bcb0f2b | 315 | } |
4e85aff4 | 316 | |
eef85c4a | 317 | r = unit_require_mounts_for(UNIT(s), s->what, UNIT_DEPENDENCY_IMPLICIT); |
646134dc | 318 | if (r < 0) |
07b0b134 ML |
319 | return r; |
320 | ||
eef85c4a | 321 | r = swap_add_device_dependencies(s); |
646134dc | 322 | if (r < 0) |
6e2ef85b | 323 | return r; |
07b0b134 | 324 | |
9670d583 LP |
325 | r = swap_load_devnode(s); |
326 | if (r < 0) | |
327 | return r; | |
328 | ||
598459ce LP |
329 | r = unit_patch_contexts(u); |
330 | if (r < 0) | |
331 | return r; | |
332 | ||
333 | r = unit_add_exec_dependencies(u, &s->exec_context); | |
334 | if (r < 0) | |
335 | return r; | |
336 | ||
d79200e2 | 337 | r = unit_set_default_slice(u); |
a016b922 LP |
338 | if (r < 0) |
339 | return r; | |
340 | ||
4c9ea260 LP |
341 | r = swap_add_default_dependencies(s); |
342 | if (r < 0) | |
343 | return r; | |
07b0b134 ML |
344 | } |
345 | ||
346 | return swap_verify(s); | |
347 | } | |
348 | ||
628c89cc | 349 | static int swap_setup_unit( |
4e85aff4 LP |
350 | Manager *m, |
351 | const char *what, | |
e04aad61 | 352 | const char *what_proc_swaps, |
4e85aff4 | 353 | int priority, |
e04aad61 LP |
354 | bool set_flags) { |
355 | ||
7fd1b19b | 356 | _cleanup_free_ char *e = NULL; |
2c7c6144 | 357 | bool delete = false; |
5bcb0f2b | 358 | Unit *u = NULL; |
07b0b134 | 359 | int r; |
4e85aff4 LP |
360 | SwapParameters *p; |
361 | ||
362 | assert(m); | |
363 | assert(what); | |
6b1dc2bd | 364 | assert(what_proc_swaps); |
07b0b134 | 365 | |
7410616c LP |
366 | r = unit_name_from_path(what, ".swap", &e); |
367 | if (r < 0) | |
f2341e0a | 368 | return log_unit_error_errno(u, r, "Failed to generate unit name from path: %m"); |
07b0b134 | 369 | |
e04aad61 LP |
370 | u = manager_get_unit(m, e); |
371 | ||
6b1dc2bd | 372 | if (u && |
e04aad61 | 373 | SWAP(u)->from_proc_swaps && |
628c89cc LP |
374 | !path_equal(SWAP(u)->parameters_proc_swaps.what, what_proc_swaps)) { |
375 | log_error("Swap %s appeared twice with different device paths %s and %s", e, SWAP(u)->parameters_proc_swaps.what, what_proc_swaps); | |
e04aad61 | 376 | return -EEXIST; |
628c89cc | 377 | } |
4e85aff4 LP |
378 | |
379 | if (!u) { | |
07b0b134 ML |
380 | delete = true; |
381 | ||
a581e45a | 382 | r = unit_new_for_name(m, sizeof(Swap), e, &u); |
7d17cfbc | 383 | if (r < 0) |
e04aad61 LP |
384 | goto fail; |
385 | ||
7d17cfbc MS |
386 | SWAP(u)->what = strdup(what); |
387 | if (!SWAP(u)->what) { | |
628c89cc | 388 | r = -ENOMEM; |
e04aad61 LP |
389 | goto fail; |
390 | } | |
391 | ||
392 | unit_add_to_load_queue(u); | |
4e85aff4 LP |
393 | } else |
394 | delete = false; | |
07b0b134 | 395 | |
6b1dc2bd | 396 | p = &SWAP(u)->parameters_proc_swaps; |
07b0b134 | 397 | |
6b1dc2bd | 398 | if (!p->what) { |
5bcb0f2b LP |
399 | p->what = strdup(what_proc_swaps); |
400 | if (!p->what) { | |
401 | r = -ENOMEM; | |
6b1dc2bd LP |
402 | goto fail; |
403 | } | |
6b1dc2bd | 404 | } |
e04aad61 | 405 | |
6b1dc2bd LP |
406 | if (set_flags) { |
407 | SWAP(u)->is_active = true; | |
408 | SWAP(u)->just_activated = !SWAP(u)->from_proc_swaps; | |
4e85aff4 | 409 | } |
07b0b134 | 410 | |
6b1dc2bd LP |
411 | SWAP(u)->from_proc_swaps = true; |
412 | ||
4e85aff4 | 413 | p->priority = priority; |
07b0b134 | 414 | |
4e85aff4 | 415 | unit_add_to_dbus_queue(u); |
07b0b134 ML |
416 | return 0; |
417 | ||
418 | fail: | |
f2341e0a | 419 | log_unit_warning_errno(u, r, "Failed to load swap unit: %m"); |
e04aad61 | 420 | |
c9d5c9c0 | 421 | if (delete) |
07b0b134 ML |
422 | unit_free(u); |
423 | ||
4e85aff4 | 424 | return r; |
07b0b134 ML |
425 | } |
426 | ||
628c89cc | 427 | static int swap_process_new(Manager *m, const char *device, int prio, bool set_flags) { |
8e766630 | 428 | _cleanup_(udev_device_unrefp) struct udev_device *d = NULL; |
5bcb0f2b LP |
429 | struct udev_list_entry *item = NULL, *first = NULL; |
430 | const char *dn; | |
e04aad61 | 431 | struct stat st; |
5bcb0f2b | 432 | int r; |
e04aad61 LP |
433 | |
434 | assert(m); | |
435 | ||
628c89cc | 436 | r = swap_setup_unit(m, device, device, prio, set_flags); |
5bcb0f2b LP |
437 | if (r < 0) |
438 | return r; | |
e04aad61 | 439 | |
5bcb0f2b LP |
440 | /* If this is a block device, then let's add duplicates for |
441 | * all other names of this block device */ | |
442 | if (stat(device, &st) < 0 || !S_ISBLK(st.st_mode)) | |
443 | return 0; | |
e04aad61 | 444 | |
e5ca27b7 LP |
445 | r = udev_device_new_from_stat_rdev(m->udev, &st, &d); |
446 | if (r < 0) { | |
447 | log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, | |
448 | "Failed to allocate udev device for swap %s: %m", device); | |
5bcb0f2b | 449 | return 0; |
e5ca27b7 | 450 | } |
e04aad61 | 451 | |
5bcb0f2b LP |
452 | /* Add the main device node */ |
453 | dn = udev_device_get_devnode(d); | |
454 | if (dn && !streq(dn, device)) | |
628c89cc | 455 | swap_setup_unit(m, dn, device, prio, set_flags); |
e04aad61 | 456 | |
5bcb0f2b LP |
457 | /* Add additional units for all symlinks */ |
458 | first = udev_device_get_devlinks_list_entry(d); | |
459 | udev_list_entry_foreach(item, first) { | |
460 | const char *p; | |
e04aad61 | 461 | |
5bcb0f2b LP |
462 | /* Don't bother with the /dev/block links */ |
463 | p = udev_list_entry_get_name(item); | |
e04aad61 | 464 | |
5bcb0f2b LP |
465 | if (streq(p, device)) |
466 | continue; | |
e04aad61 | 467 | |
5bcb0f2b LP |
468 | if (path_startswith(p, "/dev/block/")) |
469 | continue; | |
e04aad61 | 470 | |
5bcb0f2b LP |
471 | if (stat(p, &st) >= 0) |
472 | if (!S_ISBLK(st.st_mode) || | |
473 | st.st_rdev != udev_device_get_devnum(d)) | |
474 | continue; | |
e04aad61 | 475 | |
628c89cc | 476 | swap_setup_unit(m, p, device, prio, set_flags); |
e04aad61 LP |
477 | } |
478 | ||
e04aad61 LP |
479 | return r; |
480 | } | |
481 | ||
07b0b134 ML |
482 | static void swap_set_state(Swap *s, SwapState state) { |
483 | SwapState old_state; | |
37cf8fee | 484 | Swap *other; |
e04aad61 | 485 | |
07b0b134 ML |
486 | assert(s); |
487 | ||
488 | old_state = s->state; | |
489 | s->state = state; | |
490 | ||
dedf3719 | 491 | if (!SWAP_STATE_WITH_PROCESS(state)) { |
718db961 | 492 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
e04aad61 LP |
493 | swap_unwatch_control_pid(s); |
494 | s->control_command = NULL; | |
495 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; | |
496 | } | |
497 | ||
07b0b134 | 498 | if (state != old_state) |
f2341e0a | 499 | log_unit_debug(UNIT(s), "Changed %s -> %s", swap_state_to_string(old_state), swap_state_to_string(state)); |
07b0b134 | 500 | |
2ad2e41a | 501 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], 0); |
37cf8fee LP |
502 | |
503 | /* If there other units for the same device node have a job | |
504 | queued it might be worth checking again if it is runnable | |
505 | now. This is necessary, since swap_start() refuses | |
506 | operation with EAGAIN if there's already another job for | |
507 | the same device node queued. */ | |
508 | LIST_FOREACH_OTHERS(same_devnode, other, s) | |
509 | if (UNIT(other)->job) | |
510 | job_add_to_run_queue(UNIT(other)->job); | |
07b0b134 ML |
511 | } |
512 | ||
be847e82 | 513 | static int swap_coldplug(Unit *u) { |
07b0b134 ML |
514 | Swap *s = SWAP(u); |
515 | SwapState new_state = SWAP_DEAD; | |
e04aad61 | 516 | int r; |
07b0b134 ML |
517 | |
518 | assert(s); | |
519 | assert(s->state == SWAP_DEAD); | |
520 | ||
521 | if (s->deserialized_state != s->state) | |
522 | new_state = s->deserialized_state; | |
4e85aff4 | 523 | else if (s->from_proc_swaps) |
07b0b134 ML |
524 | new_state = SWAP_ACTIVE; |
525 | ||
5bcb0f2b LP |
526 | if (new_state == s->state) |
527 | return 0; | |
e04aad61 | 528 | |
c386f588 LP |
529 | if (s->control_pid > 0 && |
530 | pid_is_unwaited(s->control_pid) && | |
dedf3719 | 531 | SWAP_STATE_WITH_PROCESS(new_state)) { |
e04aad61 | 532 | |
5bcb0f2b LP |
533 | r = unit_watch_pid(UNIT(s), s->control_pid); |
534 | if (r < 0) | |
535 | return r; | |
e04aad61 | 536 | |
36c16a7c | 537 | r = swap_arm_timer(s, usec_add(u->state_change_timestamp.monotonic, s->timeout_usec)); |
5bcb0f2b LP |
538 | if (r < 0) |
539 | return r; | |
e04aad61 | 540 | } |
07b0b134 | 541 | |
e8a565cb | 542 | if (!IN_SET(new_state, SWAP_DEAD, SWAP_FAILED)) { |
29206d46 | 543 | (void) unit_setup_dynamic_creds(u); |
e8a565cb YW |
544 | (void) unit_setup_exec_runtime(u); |
545 | } | |
29206d46 | 546 | |
5bcb0f2b | 547 | swap_set_state(s, new_state); |
07b0b134 ML |
548 | return 0; |
549 | } | |
550 | ||
551 | static void swap_dump(Unit *u, FILE *f, const char *prefix) { | |
f2e18ef1 | 552 | char buf[FORMAT_TIMESPAN_MAX]; |
07b0b134 | 553 | Swap *s = SWAP(u); |
4e85aff4 | 554 | SwapParameters *p; |
07b0b134 ML |
555 | |
556 | assert(s); | |
4e85aff4 LP |
557 | assert(f); |
558 | ||
559 | if (s->from_proc_swaps) | |
560 | p = &s->parameters_proc_swaps; | |
561 | else if (s->from_fragment) | |
562 | p = &s->parameters_fragment; | |
b6bfc7bb LP |
563 | else |
564 | p = NULL; | |
07b0b134 ML |
565 | |
566 | fprintf(f, | |
4e85aff4 | 567 | "%sSwap State: %s\n" |
e1770af8 | 568 | "%sResult: %s\n" |
07b0b134 | 569 | "%sWhat: %s\n" |
4e85aff4 LP |
570 | "%sFrom /proc/swaps: %s\n" |
571 | "%sFrom fragment: %s\n", | |
07b0b134 | 572 | prefix, swap_state_to_string(s->state), |
e1770af8 | 573 | prefix, swap_result_to_string(s->result), |
07b0b134 | 574 | prefix, s->what, |
4e85aff4 LP |
575 | prefix, yes_no(s->from_proc_swaps), |
576 | prefix, yes_no(s->from_fragment)); | |
e04aad61 | 577 | |
9670d583 LP |
578 | if (s->devnode) |
579 | fprintf(f, "%sDevice Node: %s\n", prefix, s->devnode); | |
580 | ||
b6bfc7bb LP |
581 | if (p) |
582 | fprintf(f, | |
583 | "%sPriority: %i\n" | |
47cb901e | 584 | "%sOptions: %s\n", |
b6bfc7bb | 585 | prefix, p->priority, |
47cb901e | 586 | prefix, strempty(p->options)); |
b6bfc7bb | 587 | |
9bd0e1b8 YW |
588 | fprintf(f, |
589 | "%sTimeoutSec: %s\n", | |
590 | prefix, format_timespan(buf, sizeof(buf), s->timeout_usec, USEC_PER_SEC)); | |
591 | ||
e04aad61 LP |
592 | if (s->control_pid > 0) |
593 | fprintf(f, | |
de0671ee ZJS |
594 | "%sControl PID: "PID_FMT"\n", |
595 | prefix, s->control_pid); | |
e04aad61 LP |
596 | |
597 | exec_context_dump(&s->exec_context, f, prefix); | |
4819ff03 | 598 | kill_context_dump(&s->kill_context, f, prefix); |
18f573aa | 599 | cgroup_context_dump(&s->cgroup_context, f, prefix); |
e04aad61 LP |
600 | } |
601 | ||
602 | static int swap_spawn(Swap *s, ExecCommand *c, pid_t *_pid) { | |
3c7416b6 | 603 | |
9fa95f85 | 604 | ExecParameters exec_params = { |
1703fa41 | 605 | .flags = EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN, |
c39f1ce2 LP |
606 | .stdin_fd = -1, |
607 | .stdout_fd = -1, | |
608 | .stderr_fd = -1, | |
9fa95f85 | 609 | }; |
3c7416b6 LP |
610 | pid_t pid; |
611 | int r; | |
e04aad61 LP |
612 | |
613 | assert(s); | |
614 | assert(c); | |
615 | assert(_pid); | |
616 | ||
3c7416b6 | 617 | r = unit_prepare_exec(UNIT(s)); |
29206d46 | 618 | if (r < 0) |
3c7416b6 | 619 | return r; |
29206d46 | 620 | |
36c16a7c | 621 | r = swap_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_usec)); |
646134dc | 622 | if (r < 0) |
e04aad61 LP |
623 | goto fail; |
624 | ||
f0d47797 | 625 | unit_set_exec_params(UNIT(s), &exec_params); |
9fa95f85 | 626 | |
f2341e0a LP |
627 | r = exec_spawn(UNIT(s), |
628 | c, | |
646134dc | 629 | &s->exec_context, |
9fa95f85 | 630 | &exec_params, |
613b411c | 631 | s->exec_runtime, |
29206d46 | 632 | &s->dynamic_creds, |
646134dc ZJS |
633 | &pid); |
634 | if (r < 0) | |
e04aad61 LP |
635 | goto fail; |
636 | ||
646134dc ZJS |
637 | r = unit_watch_pid(UNIT(s), pid); |
638 | if (r < 0) | |
e04aad61 LP |
639 | /* FIXME: we need to do something here */ |
640 | goto fail; | |
641 | ||
642 | *_pid = pid; | |
643 | ||
644 | return 0; | |
645 | ||
646 | fail: | |
718db961 | 647 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
3536f49e | 648 | |
e04aad61 | 649 | return r; |
07b0b134 ML |
650 | } |
651 | ||
e1770af8 | 652 | static void swap_enter_dead(Swap *s, SwapResult f) { |
07b0b134 ML |
653 | assert(s); |
654 | ||
a0fef983 | 655 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 656 | s->result = f; |
e04aad61 | 657 | |
ed77d407 LP |
658 | if (s->result != SWAP_SUCCESS) |
659 | log_unit_warning(UNIT(s), "Failed with result '%s'.", swap_result_to_string(s->result)); | |
660 | ||
29206d46 LP |
661 | swap_set_state(s, s->result != SWAP_SUCCESS ? SWAP_FAILED : SWAP_DEAD); |
662 | ||
e8a565cb | 663 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, true); |
613b411c | 664 | |
3536f49e | 665 | exec_context_destroy_runtime_directory(&s->exec_context, UNIT(s)->manager->prefix[EXEC_DIRECTORY_RUNTIME]); |
e66cf1a3 | 666 | |
00d9ef85 LP |
667 | unit_unref_uid_gid(UNIT(s), true); |
668 | ||
29206d46 | 669 | dynamic_creds_destroy(&s->dynamic_creds); |
07b0b134 ML |
670 | } |
671 | ||
e1770af8 | 672 | static void swap_enter_active(Swap *s, SwapResult f) { |
e04aad61 LP |
673 | assert(s); |
674 | ||
a0fef983 | 675 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 676 | s->result = f; |
e04aad61 LP |
677 | |
678 | swap_set_state(s, SWAP_ACTIVE); | |
679 | } | |
680 | ||
50864457 LP |
681 | static void swap_enter_dead_or_active(Swap *s, SwapResult f) { |
682 | assert(s); | |
683 | ||
684 | if (s->from_proc_swaps) | |
685 | swap_enter_active(s, f); | |
686 | else | |
687 | swap_enter_dead(s, f); | |
688 | } | |
689 | ||
e1770af8 | 690 | static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) { |
07b0b134 | 691 | int r; |
d31ae548 | 692 | KillOperation kop; |
07b0b134 ML |
693 | |
694 | assert(s); | |
e04aad61 | 695 | |
a0fef983 | 696 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 697 | s->result = f; |
e04aad61 | 698 | |
50864457 | 699 | if (state == SWAP_DEACTIVATING_SIGTERM) |
d31ae548 FB |
700 | kop = KILL_TERMINATE; |
701 | else | |
702 | kop = KILL_KILL; | |
703 | ||
704 | r = unit_kill_context(UNIT(s), &s->kill_context, kop, -1, s->control_pid, false); | |
cd2086fe LP |
705 | if (r < 0) |
706 | goto fail; | |
e04aad61 | 707 | |
cd2086fe | 708 | if (r > 0) { |
36c16a7c | 709 | r = swap_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_usec)); |
646134dc | 710 | if (r < 0) |
e04aad61 LP |
711 | goto fail; |
712 | ||
713 | swap_set_state(s, state); | |
50864457 | 714 | } else if (state == SWAP_DEACTIVATING_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb LP |
715 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_SUCCESS); |
716 | else | |
50864457 | 717 | swap_enter_dead_or_active(s, SWAP_SUCCESS); |
e04aad61 LP |
718 | |
719 | return; | |
720 | ||
721 | fail: | |
f2341e0a | 722 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
50864457 | 723 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
724 | } |
725 | ||
726 | static void swap_enter_activating(Swap *s) { | |
bf1d7ba7 KZ |
727 | _cleanup_free_ char *opts = NULL; |
728 | int r; | |
e04aad61 LP |
729 | |
730 | assert(s); | |
731 | ||
a4634b21 LP |
732 | unit_warn_leftover_processes(UNIT(s)); |
733 | ||
e04aad61 LP |
734 | s->control_command_id = SWAP_EXEC_ACTIVATE; |
735 | s->control_command = s->exec_command + SWAP_EXEC_ACTIVATE; | |
07b0b134 | 736 | |
86b23b07 | 737 | if (s->from_fragment) { |
bf1d7ba7 | 738 | int priority = -1; |
47cb901e | 739 | |
bf1d7ba7 KZ |
740 | r = fstab_find_pri(s->parameters_fragment.options, &priority); |
741 | if (r < 0) | |
742 | log_warning_errno(r, "Failed to parse swap priority \"%s\", ignoring: %m", s->parameters_fragment.options); | |
743 | else if (r == 1 && s->parameters_fragment.priority >= 0) | |
744 | log_warning("Duplicate swap priority configuration by Priority and Options fields."); | |
745 | ||
746 | if (r <= 0 && s->parameters_fragment.priority >= 0) { | |
747 | if (s->parameters_fragment.options) | |
748 | r = asprintf(&opts, "%s,pri=%i", s->parameters_fragment.options, s->parameters_fragment.priority); | |
749 | else | |
750 | r = asprintf(&opts, "pri=%i", s->parameters_fragment.priority); | |
e64d5235 | 751 | if (r < 0) |
bf1d7ba7 | 752 | goto fail; |
e64d5235 | 753 | } |
86b23b07 JS |
754 | } |
755 | ||
756 | r = exec_command_set(s->control_command, "/sbin/swapon", NULL); | |
757 | if (r < 0) | |
758 | goto fail; | |
4e85aff4 | 759 | |
bf1d7ba7 KZ |
760 | if (s->parameters_fragment.options || opts) { |
761 | r = exec_command_append(s->control_command, "-o", | |
762 | opts ? : s->parameters_fragment.options, NULL); | |
86b23b07 JS |
763 | if (r < 0) |
764 | goto fail; | |
765 | } | |
e04aad61 | 766 | |
86b23b07 | 767 | r = exec_command_append(s->control_command, s->what, NULL); |
e04aad61 LP |
768 | if (r < 0) |
769 | goto fail; | |
770 | ||
771 | swap_unwatch_control_pid(s); | |
772 | ||
646134dc ZJS |
773 | r = swap_spawn(s, s->control_command, &s->control_pid); |
774 | if (r < 0) | |
e04aad61 LP |
775 | goto fail; |
776 | ||
777 | swap_set_state(s, SWAP_ACTIVATING); | |
778 | ||
779 | return; | |
780 | ||
781 | fail: | |
f2341e0a | 782 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapon' task: %m"); |
50864457 | 783 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
784 | } |
785 | ||
e1770af8 | 786 | static void swap_enter_deactivating(Swap *s) { |
e04aad61 LP |
787 | int r; |
788 | ||
789 | assert(s); | |
790 | ||
e04aad61 LP |
791 | s->control_command_id = SWAP_EXEC_DEACTIVATE; |
792 | s->control_command = s->exec_command + SWAP_EXEC_DEACTIVATE; | |
793 | ||
646134dc | 794 | r = exec_command_set(s->control_command, |
e04aad61 LP |
795 | "/sbin/swapoff", |
796 | s->what, | |
646134dc ZJS |
797 | NULL); |
798 | if (r < 0) | |
e04aad61 LP |
799 | goto fail; |
800 | ||
801 | swap_unwatch_control_pid(s); | |
802 | ||
646134dc ZJS |
803 | r = swap_spawn(s, s->control_command, &s->control_pid); |
804 | if (r < 0) | |
e04aad61 LP |
805 | goto fail; |
806 | ||
807 | swap_set_state(s, SWAP_DEACTIVATING); | |
808 | ||
809 | return; | |
810 | ||
811 | fail: | |
f2341e0a | 812 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'swapoff' task: %m"); |
50864457 | 813 | swap_enter_dead_or_active(s, SWAP_FAILURE_RESOURCES); |
e04aad61 LP |
814 | } |
815 | ||
816 | static int swap_start(Unit *u) { | |
37cf8fee | 817 | Swap *s = SWAP(u), *other; |
07299350 | 818 | int r; |
e04aad61 LP |
819 | |
820 | assert(s); | |
821 | ||
50864457 | 822 | /* We cannot fulfill this request right now, try again later please! */ |
d31ae548 FB |
823 | if (IN_SET(s->state, |
824 | SWAP_DEACTIVATING, | |
825 | SWAP_DEACTIVATING_SIGTERM, | |
50864457 | 826 | SWAP_DEACTIVATING_SIGKILL)) |
e04aad61 LP |
827 | return -EAGAIN; |
828 | ||
50864457 | 829 | /* Already on it! */ |
e04aad61 LP |
830 | if (s->state == SWAP_ACTIVATING) |
831 | return 0; | |
832 | ||
d31ae548 | 833 | assert(IN_SET(s->state, SWAP_DEAD, SWAP_FAILED)); |
e04aad61 | 834 | |
75f86906 | 835 | if (detect_container() > 0) |
a5c3034f LP |
836 | return -EPERM; |
837 | ||
37cf8fee LP |
838 | /* If there's a job for another swap unit for the same node |
839 | * running, then let's not dispatch this one for now, and wait | |
840 | * until that other job has finished. */ | |
841 | LIST_FOREACH_OTHERS(same_devnode, other, s) | |
842 | if (UNIT(other)->job && UNIT(other)->job->state == JOB_RUNNING) | |
843 | return -EAGAIN; | |
844 | ||
07299350 LP |
845 | r = unit_start_limit_test(u); |
846 | if (r < 0) { | |
847 | swap_enter_dead(s, SWAP_FAILURE_START_LIMIT_HIT); | |
848 | return r; | |
849 | } | |
850 | ||
4b58153d LP |
851 | r = unit_acquire_invocation_id(u); |
852 | if (r < 0) | |
853 | return r; | |
854 | ||
e1770af8 | 855 | s->result = SWAP_SUCCESS; |
3c7416b6 LP |
856 | |
857 | u->reset_accounting = true; | |
5ad096b3 | 858 | |
e04aad61 | 859 | swap_enter_activating(s); |
82a2b6bb | 860 | return 1; |
07b0b134 ML |
861 | } |
862 | ||
863 | static int swap_stop(Unit *u) { | |
864 | Swap *s = SWAP(u); | |
07b0b134 ML |
865 | |
866 | assert(s); | |
867 | ||
50864457 LP |
868 | switch (s->state) { |
869 | ||
870 | case SWAP_DEACTIVATING: | |
871 | case SWAP_DEACTIVATING_SIGTERM: | |
872 | case SWAP_DEACTIVATING_SIGKILL: | |
873 | /* Already on it */ | |
e04aad61 | 874 | return 0; |
07b0b134 | 875 | |
50864457 LP |
876 | case SWAP_ACTIVATING: |
877 | case SWAP_ACTIVATING_DONE: | |
878 | /* There's a control process pending, directly enter kill mode */ | |
879 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_SUCCESS); | |
880 | return 0; | |
07b0b134 | 881 | |
50864457 LP |
882 | case SWAP_ACTIVE: |
883 | if (detect_container() > 0) | |
884 | return -EPERM; | |
a5c3034f | 885 | |
50864457 LP |
886 | swap_enter_deactivating(s); |
887 | return 1; | |
888 | ||
889 | default: | |
890 | assert_not_reached("Unexpected state."); | |
891 | } | |
07b0b134 ML |
892 | } |
893 | ||
894 | static int swap_serialize(Unit *u, FILE *f, FDSet *fds) { | |
895 | Swap *s = SWAP(u); | |
896 | ||
897 | assert(s); | |
898 | assert(f); | |
899 | assert(fds); | |
900 | ||
901 | unit_serialize_item(u, f, "state", swap_state_to_string(s->state)); | |
e1770af8 | 902 | unit_serialize_item(u, f, "result", swap_result_to_string(s->result)); |
e04aad61 LP |
903 | |
904 | if (s->control_pid > 0) | |
de0671ee | 905 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
e04aad61 LP |
906 | |
907 | if (s->control_command_id >= 0) | |
908 | unit_serialize_item(u, f, "control-command", swap_exec_command_to_string(s->control_command_id)); | |
07b0b134 ML |
909 | |
910 | return 0; | |
911 | } | |
912 | ||
913 | static int swap_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
914 | Swap *s = SWAP(u); | |
915 | ||
916 | assert(s); | |
917 | assert(fds); | |
918 | ||
919 | if (streq(key, "state")) { | |
920 | SwapState state; | |
921 | ||
646134dc ZJS |
922 | state = swap_state_from_string(value); |
923 | if (state < 0) | |
f2341e0a | 924 | log_unit_debug(u, "Failed to parse state value: %s", value); |
07b0b134 ML |
925 | else |
926 | s->deserialized_state = state; | |
e1770af8 LP |
927 | } else if (streq(key, "result")) { |
928 | SwapResult f; | |
929 | ||
930 | f = swap_result_from_string(value); | |
931 | if (f < 0) | |
f2341e0a | 932 | log_unit_debug(u, "Failed to parse result value: %s", value); |
e1770af8 LP |
933 | else if (f != SWAP_SUCCESS) |
934 | s->result = f; | |
e04aad61 LP |
935 | } else if (streq(key, "control-pid")) { |
936 | pid_t pid; | |
937 | ||
938 | if (parse_pid(value, &pid) < 0) | |
f2341e0a | 939 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
e04aad61 LP |
940 | else |
941 | s->control_pid = pid; | |
942 | ||
943 | } else if (streq(key, "control-command")) { | |
944 | SwapExecCommand id; | |
945 | ||
646134dc ZJS |
946 | id = swap_exec_command_from_string(value); |
947 | if (id < 0) | |
f2341e0a | 948 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
e04aad61 LP |
949 | else { |
950 | s->control_command_id = id; | |
951 | s->control_command = s->exec_command + id; | |
952 | } | |
07b0b134 | 953 | } else |
f2341e0a | 954 | log_unit_debug(u, "Unknown serialization key: %s", key); |
07b0b134 ML |
955 | |
956 | return 0; | |
957 | } | |
958 | ||
44a6b1b6 | 959 | _pure_ static UnitActiveState swap_active_state(Unit *u) { |
07b0b134 ML |
960 | assert(u); |
961 | ||
962 | return state_translation_table[SWAP(u)->state]; | |
963 | } | |
964 | ||
44a6b1b6 | 965 | _pure_ static const char *swap_sub_state_to_string(Unit *u) { |
07b0b134 ML |
966 | assert(u); |
967 | ||
968 | return swap_state_to_string(SWAP(u)->state); | |
969 | } | |
970 | ||
f2f725e5 | 971 | _pure_ static bool swap_may_gc(Unit *u) { |
07b0b134 ML |
972 | Swap *s = SWAP(u); |
973 | ||
974 | assert(s); | |
975 | ||
f2f725e5 ZJS |
976 | if (s->from_proc_swaps) |
977 | return false; | |
978 | ||
979 | return true; | |
07b0b134 ML |
980 | } |
981 | ||
e04aad61 LP |
982 | static void swap_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
983 | Swap *s = SWAP(u); | |
e1770af8 | 984 | SwapResult f; |
e04aad61 LP |
985 | |
986 | assert(s); | |
987 | assert(pid >= 0); | |
988 | ||
989 | if (pid != s->control_pid) | |
990 | return; | |
991 | ||
992 | s->control_pid = 0; | |
993 | ||
1f0958f6 | 994 | if (is_clean_exit(code, status, EXIT_CLEAN_COMMAND, NULL)) |
e1770af8 LP |
995 | f = SWAP_SUCCESS; |
996 | else if (code == CLD_EXITED) | |
997 | f = SWAP_FAILURE_EXIT_CODE; | |
998 | else if (code == CLD_KILLED) | |
999 | f = SWAP_FAILURE_SIGNAL; | |
1000 | else if (code == CLD_DUMPED) | |
1001 | f = SWAP_FAILURE_CORE_DUMP; | |
1002 | else | |
1003 | assert_not_reached("Unknown code"); | |
1004 | ||
a0fef983 | 1005 | if (s->result == SWAP_SUCCESS) |
e1770af8 | 1006 | s->result = f; |
e04aad61 LP |
1007 | |
1008 | if (s->control_command) { | |
6ea832a2 | 1009 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
e1770af8 | 1010 | |
e04aad61 LP |
1011 | s->control_command = NULL; |
1012 | s->control_command_id = _SWAP_EXEC_COMMAND_INVALID; | |
1013 | } | |
1014 | ||
f2341e0a LP |
1015 | log_unit_full(u, f == SWAP_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
1016 | "Swap process exited, code=%s status=%i", sigchld_code_to_string(code), status); | |
e04aad61 LP |
1017 | |
1018 | switch (s->state) { | |
1019 | ||
1020 | case SWAP_ACTIVATING: | |
5bcb0f2b | 1021 | case SWAP_ACTIVATING_DONE: |
e04aad61 | 1022 | |
50864457 | 1023 | if (f == SWAP_SUCCESS || s->from_proc_swaps) |
e1770af8 | 1024 | swap_enter_active(s, f); |
e04aad61 | 1025 | else |
e1770af8 | 1026 | swap_enter_dead(s, f); |
e04aad61 LP |
1027 | break; |
1028 | ||
1029 | case SWAP_DEACTIVATING: | |
1030 | case SWAP_DEACTIVATING_SIGKILL: | |
1031 | case SWAP_DEACTIVATING_SIGTERM: | |
1032 | ||
50864457 | 1033 | swap_enter_dead_or_active(s, f); |
e04aad61 LP |
1034 | break; |
1035 | ||
1036 | default: | |
1037 | assert_not_reached("Uh, control process died at wrong time."); | |
1038 | } | |
1039 | ||
1040 | /* Notify clients about changed exit status */ | |
1041 | unit_add_to_dbus_queue(u); | |
e04aad61 LP |
1042 | } |
1043 | ||
718db961 LP |
1044 | static int swap_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
1045 | Swap *s = SWAP(userdata); | |
e04aad61 LP |
1046 | |
1047 | assert(s); | |
718db961 | 1048 | assert(s->timer_event_source == source); |
e04aad61 LP |
1049 | |
1050 | switch (s->state) { | |
1051 | ||
1052 | case SWAP_ACTIVATING: | |
5bcb0f2b | 1053 | case SWAP_ACTIVATING_DONE: |
f2341e0a | 1054 | log_unit_warning(UNIT(s), "Activation timed out. Stopping."); |
50864457 | 1055 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1056 | break; |
1057 | ||
1058 | case SWAP_DEACTIVATING: | |
f2341e0a | 1059 | log_unit_warning(UNIT(s), "Deactivation timed out. Stopping."); |
e1770af8 | 1060 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGTERM, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1061 | break; |
1062 | ||
e04aad61 | 1063 | case SWAP_DEACTIVATING_SIGTERM: |
4819ff03 | 1064 | if (s->kill_context.send_sigkill) { |
50864457 | 1065 | log_unit_warning(UNIT(s), "Swap process timed out. Killing."); |
e1770af8 | 1066 | swap_enter_signal(s, SWAP_DEACTIVATING_SIGKILL, SWAP_FAILURE_TIMEOUT); |
ba035df2 | 1067 | } else { |
50864457 LP |
1068 | log_unit_warning(UNIT(s), "Swap process timed out. Skipping SIGKILL. Ignoring."); |
1069 | swap_enter_dead_or_active(s, SWAP_FAILURE_TIMEOUT); | |
ba035df2 | 1070 | } |
e04aad61 LP |
1071 | break; |
1072 | ||
e04aad61 | 1073 | case SWAP_DEACTIVATING_SIGKILL: |
f2341e0a | 1074 | log_unit_warning(UNIT(s), "Swap process still around after SIGKILL. Ignoring."); |
50864457 | 1075 | swap_enter_dead_or_active(s, SWAP_FAILURE_TIMEOUT); |
e04aad61 LP |
1076 | break; |
1077 | ||
1078 | default: | |
1079 | assert_not_reached("Timeout at wrong time."); | |
1080 | } | |
718db961 LP |
1081 | |
1082 | return 0; | |
e04aad61 LP |
1083 | } |
1084 | ||
1085 | static int swap_load_proc_swaps(Manager *m, bool set_flags) { | |
1086 | unsigned i; | |
1087 | int r = 0; | |
1088 | ||
1089 | assert(m); | |
1090 | ||
07b0b134 | 1091 | rewind(m->proc_swaps); |
bab45044 | 1092 | |
4e85aff4 | 1093 | (void) fscanf(m->proc_swaps, "%*s %*s %*s %*s %*s\n"); |
07b0b134 | 1094 | |
e04aad61 | 1095 | for (i = 1;; i++) { |
9fb3675e | 1096 | _cleanup_free_ char *dev = NULL, *d = NULL; |
07b0b134 ML |
1097 | int prio = 0, k; |
1098 | ||
646134dc ZJS |
1099 | k = fscanf(m->proc_swaps, |
1100 | "%ms " /* device/file */ | |
1101 | "%*s " /* type of swap */ | |
1102 | "%*s " /* swap size */ | |
1103 | "%*s " /* used */ | |
1104 | "%i\n", /* priority */ | |
1105 | &dev, &prio); | |
1106 | if (k != 2) { | |
07b0b134 | 1107 | if (k == EOF) |
4e85aff4 | 1108 | break; |
07b0b134 | 1109 | |
628c89cc | 1110 | log_warning("Failed to parse /proc/swaps:%u.", i); |
e04aad61 | 1111 | continue; |
07b0b134 | 1112 | } |
07b0b134 | 1113 | |
527b7a42 | 1114 | if (cunescape(dev, UNESCAPE_RELAX, &d) < 0) |
628c89cc LP |
1115 | return log_oom(); |
1116 | ||
485ae697 | 1117 | device_found_node(m, d, DEVICE_FOUND_SWAP, DEVICE_FOUND_SWAP); |
4e85aff4 | 1118 | |
628c89cc | 1119 | k = swap_process_new(m, d, prio, set_flags); |
07b0b134 | 1120 | if (k < 0) |
e04aad61 | 1121 | r = k; |
07b0b134 ML |
1122 | } |
1123 | ||
e04aad61 LP |
1124 | return r; |
1125 | } | |
1126 | ||
718db961 LP |
1127 | static int swap_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
1128 | Manager *m = userdata; | |
595ed347 | 1129 | Unit *u; |
4e434314 LP |
1130 | int r; |
1131 | ||
1132 | assert(m); | |
718db961 | 1133 | assert(revents & EPOLLPRI); |
4e434314 | 1134 | |
646134dc ZJS |
1135 | r = swap_load_proc_swaps(m, true); |
1136 | if (r < 0) { | |
da927ba9 | 1137 | log_error_errno(r, "Failed to reread /proc/swaps: %m"); |
e04aad61 LP |
1138 | |
1139 | /* Reset flags, just in case, for late calls */ | |
595ed347 MS |
1140 | LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_SWAP]) { |
1141 | Swap *swap = SWAP(u); | |
e04aad61 LP |
1142 | |
1143 | swap->is_active = swap->just_activated = false; | |
1144 | } | |
1145 | ||
1146 | return 0; | |
1147 | } | |
1148 | ||
1149 | manager_dispatch_load_queue(m); | |
1150 | ||
595ed347 MS |
1151 | LIST_FOREACH(units_by_type, u, m->units_by_type[UNIT_SWAP]) { |
1152 | Swap *swap = SWAP(u); | |
e04aad61 LP |
1153 | |
1154 | if (!swap->is_active) { | |
1155 | /* This has just been deactivated */ | |
1156 | ||
e04aad61 LP |
1157 | swap_unset_proc_swaps(swap); |
1158 | ||
1159 | switch (swap->state) { | |
1160 | ||
1161 | case SWAP_ACTIVE: | |
e1770af8 | 1162 | swap_enter_dead(swap, SWAP_SUCCESS); |
e04aad61 LP |
1163 | break; |
1164 | ||
1165 | default: | |
5bcb0f2b | 1166 | /* Fire again */ |
e04aad61 LP |
1167 | swap_set_state(swap, swap->state); |
1168 | break; | |
1169 | } | |
1170 | ||
628c89cc | 1171 | if (swap->what) |
485ae697 | 1172 | device_found_node(m, swap->what, 0, DEVICE_FOUND_SWAP); |
628c89cc | 1173 | |
e04aad61 LP |
1174 | } else if (swap->just_activated) { |
1175 | ||
1176 | /* New swap entry */ | |
1177 | ||
1178 | switch (swap->state) { | |
1179 | ||
1180 | case SWAP_DEAD: | |
1181 | case SWAP_FAILED: | |
4b58153d | 1182 | (void) unit_acquire_invocation_id(UNIT(swap)); |
e1770af8 | 1183 | swap_enter_active(swap, SWAP_SUCCESS); |
e04aad61 LP |
1184 | break; |
1185 | ||
5bcb0f2b LP |
1186 | case SWAP_ACTIVATING: |
1187 | swap_set_state(swap, SWAP_ACTIVATING_DONE); | |
1188 | break; | |
1189 | ||
e04aad61 LP |
1190 | default: |
1191 | /* Nothing really changed, but let's | |
1192 | * issue an notification call | |
1193 | * nonetheless, in case somebody is | |
1194 | * waiting for this. */ | |
1195 | swap_set_state(swap, swap->state); | |
1196 | break; | |
1197 | } | |
1198 | } | |
1199 | ||
1200 | /* Reset the flags for later calls */ | |
1201 | swap->is_active = swap->just_activated = false; | |
1202 | } | |
1203 | ||
1204 | return 1; | |
1205 | } | |
1206 | ||
1207 | static Unit *swap_following(Unit *u) { | |
1208 | Swap *s = SWAP(u); | |
1209 | Swap *other, *first = NULL; | |
1210 | ||
1211 | assert(s); | |
1212 | ||
cdc89820 ZJS |
1213 | /* If the user configured the swap through /etc/fstab or |
1214 | * a device unit, follow that. */ | |
1215 | ||
1216 | if (s->from_fragment) | |
e04aad61 LP |
1217 | return NULL; |
1218 | ||
caac2704 | 1219 | LIST_FOREACH_OTHERS(same_devnode, other, s) |
cdc89820 ZJS |
1220 | if (other->from_fragment) |
1221 | return UNIT(other); | |
1222 | ||
b938cb90 | 1223 | /* Otherwise, make everybody follow the unit that's named after |
cdc89820 ZJS |
1224 | * the swap device in the kernel */ |
1225 | ||
1226 | if (streq_ptr(s->what, s->devnode)) | |
1227 | return NULL; | |
e04aad61 | 1228 | |
9670d583 LP |
1229 | LIST_FOREACH_AFTER(same_devnode, other, s) |
1230 | if (streq_ptr(other->what, other->devnode)) | |
e04aad61 LP |
1231 | return UNIT(other); |
1232 | ||
9670d583 LP |
1233 | LIST_FOREACH_BEFORE(same_devnode, other, s) { |
1234 | if (streq_ptr(other->what, other->devnode)) | |
e04aad61 LP |
1235 | return UNIT(other); |
1236 | ||
1237 | first = other; | |
1238 | } | |
1239 | ||
cdc89820 | 1240 | /* Fall back to the first on the list */ |
e04aad61 | 1241 | return UNIT(first); |
07b0b134 ML |
1242 | } |
1243 | ||
6210e7fc | 1244 | static int swap_following_set(Unit *u, Set **_set) { |
5bcb0f2b | 1245 | Swap *s = SWAP(u), *other; |
af4fa99d | 1246 | _cleanup_set_free_ Set *set = NULL; |
6210e7fc LP |
1247 | int r; |
1248 | ||
1249 | assert(s); | |
1250 | assert(_set); | |
1251 | ||
9670d583 | 1252 | if (LIST_JUST_US(same_devnode, s)) { |
6210e7fc LP |
1253 | *_set = NULL; |
1254 | return 0; | |
1255 | } | |
1256 | ||
d5099efc | 1257 | set = set_new(NULL); |
5bcb0f2b | 1258 | if (!set) |
6210e7fc LP |
1259 | return -ENOMEM; |
1260 | ||
caac2704 | 1261 | LIST_FOREACH_OTHERS(same_devnode, other, s) { |
5bcb0f2b LP |
1262 | r = set_put(set, other); |
1263 | if (r < 0) | |
95f14a3e | 1264 | return r; |
5bcb0f2b | 1265 | } |
6210e7fc | 1266 | |
95f14a3e | 1267 | *_set = TAKE_PTR(set); |
6210e7fc | 1268 | return 1; |
6210e7fc LP |
1269 | } |
1270 | ||
07b0b134 ML |
1271 | static void swap_shutdown(Manager *m) { |
1272 | assert(m); | |
1273 | ||
718db961 | 1274 | m->swap_event_source = sd_event_source_unref(m->swap_event_source); |
74ca738f | 1275 | m->proc_swaps = safe_fclose(m->proc_swaps); |
525d3cc7 | 1276 | m->swaps_by_devnode = hashmap_free(m->swaps_by_devnode); |
07b0b134 ML |
1277 | } |
1278 | ||
ba64af90 | 1279 | static void swap_enumerate(Manager *m) { |
07b0b134 | 1280 | int r; |
9670d583 | 1281 | |
07b0b134 ML |
1282 | assert(m); |
1283 | ||
4e434314 | 1284 | if (!m->proc_swaps) { |
646134dc | 1285 | m->proc_swaps = fopen("/proc/swaps", "re"); |
ba64af90 LP |
1286 | if (!m->proc_swaps) { |
1287 | if (errno == ENOENT) | |
cb209a04 | 1288 | log_debug_errno(errno, "Not swap enabled, skipping enumeration."); |
ba64af90 | 1289 | else |
cb209a04 | 1290 | log_warning_errno(errno, "Failed to open /proc/swaps, ignoring: %m"); |
ba64af90 LP |
1291 | |
1292 | return; | |
1293 | } | |
4e434314 | 1294 | |
151b9b96 | 1295 | r = sd_event_add_io(m->event, &m->swap_event_source, fileno(m->proc_swaps), EPOLLPRI, swap_dispatch_io, m); |
ba64af90 LP |
1296 | if (r < 0) { |
1297 | log_error_errno(r, "Failed to watch /proc/swaps: %m"); | |
29083707 | 1298 | goto fail; |
ba64af90 | 1299 | } |
29083707 LP |
1300 | |
1301 | /* Dispatch this before we dispatch SIGCHLD, so that | |
1302 | * we always get the events from /proc/swaps before | |
1303 | * the SIGCHLD of /sbin/swapon. */ | |
83231637 | 1304 | r = sd_event_source_set_priority(m->swap_event_source, SD_EVENT_PRIORITY_NORMAL-10); |
ba64af90 LP |
1305 | if (r < 0) { |
1306 | log_error_errno(r, "Failed to change /proc/swaps priority: %m"); | |
718db961 | 1307 | goto fail; |
ba64af90 | 1308 | } |
7dfbe2e3 TG |
1309 | |
1310 | (void) sd_event_source_set_description(m->swap_event_source, "swap-proc"); | |
4e434314 LP |
1311 | } |
1312 | ||
646134dc ZJS |
1313 | r = swap_load_proc_swaps(m, false); |
1314 | if (r < 0) | |
718db961 LP |
1315 | goto fail; |
1316 | ||
ba64af90 | 1317 | return; |
07b0b134 | 1318 | |
718db961 LP |
1319 | fail: |
1320 | swap_shutdown(m); | |
07b0b134 ML |
1321 | } |
1322 | ||
628c89cc | 1323 | int swap_process_device_new(Manager *m, struct udev_device *dev) { |
9670d583 LP |
1324 | struct udev_list_entry *item = NULL, *first = NULL; |
1325 | _cleanup_free_ char *e = NULL; | |
1326 | const char *dn; | |
cabf58b2 | 1327 | Unit *u; |
9670d583 LP |
1328 | int r = 0; |
1329 | ||
1330 | assert(m); | |
1331 | assert(dev); | |
1332 | ||
1333 | dn = udev_device_get_devnode(dev); | |
1334 | if (!dn) | |
1335 | return 0; | |
1336 | ||
7410616c LP |
1337 | r = unit_name_from_path(dn, ".swap", &e); |
1338 | if (r < 0) | |
1339 | return r; | |
9670d583 | 1340 | |
cabf58b2 FB |
1341 | u = manager_get_unit(m, e); |
1342 | if (u) | |
1343 | r = swap_set_devnode(SWAP(u), dn); | |
9670d583 LP |
1344 | |
1345 | first = udev_device_get_devlinks_list_entry(dev); | |
1346 | udev_list_entry_foreach(item, first) { | |
1347 | _cleanup_free_ char *n = NULL; | |
7410616c | 1348 | int q; |
9670d583 | 1349 | |
7410616c LP |
1350 | q = unit_name_from_path(udev_list_entry_get_name(item), ".swap", &n); |
1351 | if (q < 0) | |
1352 | return q; | |
9670d583 | 1353 | |
cabf58b2 FB |
1354 | u = manager_get_unit(m, n); |
1355 | if (u) { | |
1356 | q = swap_set_devnode(SWAP(u), dn); | |
9670d583 LP |
1357 | if (q < 0) |
1358 | r = q; | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | return r; | |
1363 | } | |
1364 | ||
628c89cc | 1365 | int swap_process_device_remove(Manager *m, struct udev_device *dev) { |
9670d583 LP |
1366 | const char *dn; |
1367 | int r = 0; | |
1368 | Swap *s; | |
1369 | ||
1370 | dn = udev_device_get_devnode(dev); | |
1371 | if (!dn) | |
1372 | return 0; | |
1373 | ||
1374 | while ((s = hashmap_get(m->swaps_by_devnode, dn))) { | |
1375 | int q; | |
1376 | ||
1377 | q = swap_set_devnode(s, NULL); | |
1378 | if (q < 0) | |
1379 | r = q; | |
1380 | } | |
1381 | ||
1382 | return r; | |
1383 | } | |
1384 | ||
fdf20a31 | 1385 | static void swap_reset_failed(Unit *u) { |
5632e374 LP |
1386 | Swap *s = SWAP(u); |
1387 | ||
1388 | assert(s); | |
1389 | ||
fdf20a31 | 1390 | if (s->state == SWAP_FAILED) |
5632e374 | 1391 | swap_set_state(s, SWAP_DEAD); |
e04aad61 | 1392 | |
e1770af8 | 1393 | s->result = SWAP_SUCCESS; |
5632e374 LP |
1394 | } |
1395 | ||
718db961 | 1396 | static int swap_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
814cc562 | 1397 | return unit_kill_common(u, who, signo, -1, SWAP(u)->control_pid, error); |
8a0867d6 LP |
1398 | } |
1399 | ||
7a7821c8 | 1400 | static int swap_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 1401 | Swap *s = SWAP(u); |
7a7821c8 | 1402 | usec_t t; |
68db7a3b ZJS |
1403 | int r; |
1404 | ||
1405 | if (!s->timer_event_source) | |
1406 | return 0; | |
1407 | ||
7a7821c8 | 1408 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
1409 | if (r < 0) |
1410 | return r; | |
7a7821c8 LP |
1411 | if (t == USEC_INFINITY) |
1412 | return 0; | |
68db7a3b | 1413 | |
7a7821c8 | 1414 | *timeout = t; |
68db7a3b ZJS |
1415 | return 1; |
1416 | } | |
1417 | ||
1c2e9646 | 1418 | static bool swap_supported(void) { |
0faacd47 LP |
1419 | static int supported = -1; |
1420 | ||
1421 | /* If swap support is not available in the kernel, or we are | |
1422 | * running in a container we don't support swap units, and any | |
1423 | * attempts to starting one should fail immediately. */ | |
1424 | ||
1425 | if (supported < 0) | |
1426 | supported = | |
1427 | access("/proc/swaps", F_OK) >= 0 && | |
75f86906 | 1428 | detect_container() <= 0; |
0faacd47 LP |
1429 | |
1430 | return supported; | |
1431 | } | |
1432 | ||
291d565a LP |
1433 | static int swap_control_pid(Unit *u) { |
1434 | Swap *s = SWAP(u); | |
1435 | ||
1436 | assert(s); | |
1437 | ||
1438 | return s->control_pid; | |
1439 | } | |
1440 | ||
e04aad61 LP |
1441 | static const char* const swap_exec_command_table[_SWAP_EXEC_COMMAND_MAX] = { |
1442 | [SWAP_EXEC_ACTIVATE] = "ExecActivate", | |
1443 | [SWAP_EXEC_DEACTIVATE] = "ExecDeactivate", | |
1444 | }; | |
1445 | ||
1446 | DEFINE_STRING_TABLE_LOOKUP(swap_exec_command, SwapExecCommand); | |
1447 | ||
e1770af8 LP |
1448 | static const char* const swap_result_table[_SWAP_RESULT_MAX] = { |
1449 | [SWAP_SUCCESS] = "success", | |
1450 | [SWAP_FAILURE_RESOURCES] = "resources", | |
1451 | [SWAP_FAILURE_TIMEOUT] = "timeout", | |
1452 | [SWAP_FAILURE_EXIT_CODE] = "exit-code", | |
1453 | [SWAP_FAILURE_SIGNAL] = "signal", | |
07299350 LP |
1454 | [SWAP_FAILURE_CORE_DUMP] = "core-dump", |
1455 | [SWAP_FAILURE_START_LIMIT_HIT] = "start-limit-hit", | |
e1770af8 LP |
1456 | }; |
1457 | ||
1458 | DEFINE_STRING_TABLE_LOOKUP(swap_result, SwapResult); | |
1459 | ||
07b0b134 | 1460 | const UnitVTable swap_vtable = { |
7d17cfbc | 1461 | .object_size = sizeof(Swap), |
718db961 LP |
1462 | .exec_context_offset = offsetof(Swap, exec_context), |
1463 | .cgroup_context_offset = offsetof(Swap, cgroup_context), | |
1464 | .kill_context_offset = offsetof(Swap, kill_context), | |
613b411c | 1465 | .exec_runtime_offset = offsetof(Swap, exec_runtime), |
29206d46 | 1466 | .dynamic_creds_offset = offsetof(Swap, dynamic_creds), |
3ef63c31 | 1467 | |
f975e971 LP |
1468 | .sections = |
1469 | "Unit\0" | |
1470 | "Swap\0" | |
1471 | "Install\0", | |
4ad49000 | 1472 | .private_section = "Swap", |
71645aca | 1473 | |
4e85aff4 | 1474 | .init = swap_init, |
07b0b134 | 1475 | .load = swap_load, |
6e620bec | 1476 | .done = swap_done, |
07b0b134 ML |
1477 | |
1478 | .coldplug = swap_coldplug, | |
1479 | ||
1480 | .dump = swap_dump, | |
1481 | ||
1482 | .start = swap_start, | |
1483 | .stop = swap_stop, | |
1484 | ||
8a0867d6 LP |
1485 | .kill = swap_kill, |
1486 | ||
68db7a3b ZJS |
1487 | .get_timeout = swap_get_timeout, |
1488 | ||
07b0b134 ML |
1489 | .serialize = swap_serialize, |
1490 | .deserialize_item = swap_deserialize_item, | |
1491 | ||
1492 | .active_state = swap_active_state, | |
1493 | .sub_state_to_string = swap_sub_state_to_string, | |
1494 | ||
f2f725e5 | 1495 | .may_gc = swap_may_gc, |
07b0b134 | 1496 | |
e04aad61 | 1497 | .sigchld_event = swap_sigchld_event, |
e04aad61 LP |
1498 | |
1499 | .reset_failed = swap_reset_failed, | |
1500 | ||
291d565a LP |
1501 | .control_pid = swap_control_pid, |
1502 | ||
718db961 | 1503 | .bus_vtable = bus_swap_vtable, |
74c964d3 LP |
1504 | .bus_set_property = bus_swap_set_property, |
1505 | .bus_commit_properties = bus_swap_commit_properties, | |
07b0b134 | 1506 | |
e04aad61 | 1507 | .following = swap_following, |
6210e7fc | 1508 | .following_set = swap_following_set, |
5632e374 | 1509 | |
6e620bec | 1510 | .enumerate = swap_enumerate, |
c6918296 | 1511 | .shutdown = swap_shutdown, |
0faacd47 | 1512 | .supported = swap_supported, |
c6918296 MS |
1513 | |
1514 | .status_message_formats = { | |
1515 | .starting_stopping = { | |
1516 | [0] = "Activating swap %s...", | |
1517 | [1] = "Deactivating swap %s...", | |
1518 | }, | |
1519 | .finished_start_job = { | |
1520 | [JOB_DONE] = "Activated swap %s.", | |
1521 | [JOB_FAILED] = "Failed to activate swap %s.", | |
c6918296 MS |
1522 | [JOB_TIMEOUT] = "Timed out activating swap %s.", |
1523 | }, | |
1524 | .finished_stop_job = { | |
1525 | [JOB_DONE] = "Deactivated swap %s.", | |
1526 | [JOB_FAILED] = "Failed deactivating swap %s.", | |
1527 | [JOB_TIMEOUT] = "Timed out deactivating swap %s.", | |
1528 | }, | |
1529 | }, | |
07b0b134 | 1530 | }; |