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291d565a LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2016 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
20 | #include "alloc-util.h" | |
21 | #include "bus-internal.h" | |
22 | #include "bus-unit-util.h" | |
23 | #include "bus-util.h" | |
24 | #include "cgroup-util.h" | |
25 | #include "env-util.h" | |
26 | #include "escape.h" | |
27 | #include "hashmap.h" | |
28 | #include "list.h" | |
29 | #include "locale-util.h" | |
30 | #include "parse-util.h" | |
31 | #include "path-util.h" | |
32 | #include "process-util.h" | |
33 | #include "rlimit-util.h" | |
34 | #include "signal-util.h" | |
35 | #include "string-util.h" | |
36 | #include "syslog-util.h" | |
37 | #include "terminal-util.h" | |
38 | #include "utf8.h" | |
39 | #include "util.h" | |
40 | ||
20b16441 LP |
41 | int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) { |
42 | assert(message); | |
43 | assert(u); | |
44 | ||
45 | u->machine = NULL; | |
46 | ||
47 | return sd_bus_message_read( | |
48 | message, | |
49 | "(ssssssouso)", | |
50 | &u->id, | |
51 | &u->description, | |
52 | &u->load_state, | |
53 | &u->active_state, | |
54 | &u->sub_state, | |
55 | &u->following, | |
56 | &u->unit_path, | |
57 | &u->job_id, | |
58 | &u->job_type, | |
59 | &u->job_path); | |
60 | } | |
61 | ||
62 | int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) { | |
63 | const char *eq, *field; | |
64 | int r, rl; | |
65 | ||
66 | assert(m); | |
67 | assert(assignment); | |
68 | ||
69 | eq = strchr(assignment, '='); | |
70 | if (!eq) { | |
71 | log_error("Not an assignment: %s", assignment); | |
72 | return -EINVAL; | |
73 | } | |
74 | ||
75 | r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); | |
76 | if (r < 0) | |
77 | return bus_log_create_error(r); | |
78 | ||
79 | field = strndupa(assignment, eq - assignment); | |
80 | eq++; | |
81 | ||
82 | if (streq(field, "CPUQuota")) { | |
83 | ||
84 | if (isempty(eq)) | |
85 | r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", USEC_INFINITY); | |
86 | else if (endswith(eq, "%")) { | |
87 | double percent; | |
88 | ||
89 | if (sscanf(eq, "%lf%%", &percent) != 1 || percent <= 0) { | |
90 | log_error("CPU quota '%s' invalid.", eq); | |
91 | return -EINVAL; | |
92 | } | |
93 | ||
94 | r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) percent * USEC_PER_SEC / 100); | |
95 | } else { | |
96 | log_error("CPU quota needs to be in percent."); | |
97 | return -EINVAL; | |
98 | } | |
99 | ||
100 | goto finish; | |
101 | ||
102 | } else if (streq(field, "EnvironmentFile")) { | |
103 | ||
104 | r = sd_bus_message_append(m, "sv", "EnvironmentFiles", "a(sb)", 1, | |
105 | eq[0] == '-' ? eq + 1 : eq, | |
106 | eq[0] == '-'); | |
107 | goto finish; | |
108 | ||
109 | } else if (STR_IN_SET(field, "AccuracySec", "RandomizedDelaySec", "RuntimeMaxSec")) { | |
110 | char *n; | |
111 | usec_t t; | |
112 | size_t l; | |
113 | r = parse_sec(eq, &t); | |
114 | if (r < 0) | |
115 | return log_error_errno(r, "Failed to parse %s= parameter: %s", field, eq); | |
116 | ||
117 | l = strlen(field); | |
118 | n = newa(char, l + 2); | |
119 | if (!n) | |
120 | return log_oom(); | |
121 | ||
122 | /* Change suffix Sec → USec */ | |
123 | strcpy(mempcpy(n, field, l - 3), "USec"); | |
124 | r = sd_bus_message_append(m, "sv", n, "t", t); | |
125 | goto finish; | |
126 | } | |
127 | ||
128 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); | |
129 | if (r < 0) | |
130 | return bus_log_create_error(r); | |
131 | ||
132 | rl = rlimit_from_string(field); | |
133 | if (rl >= 0) { | |
134 | const char *sn; | |
135 | struct rlimit l; | |
136 | ||
137 | r = rlimit_parse(rl, eq, &l); | |
138 | if (r < 0) | |
139 | return log_error_errno(r, "Failed to parse resource limit: %s", eq); | |
140 | ||
141 | r = sd_bus_message_append(m, "v", "t", l.rlim_max); | |
142 | if (r < 0) | |
143 | return bus_log_create_error(r); | |
144 | ||
145 | r = sd_bus_message_close_container(m); | |
146 | if (r < 0) | |
147 | return bus_log_create_error(r); | |
148 | ||
149 | r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); | |
150 | if (r < 0) | |
151 | return bus_log_create_error(r); | |
152 | ||
153 | sn = strjoina(field, "Soft"); | |
154 | r = sd_bus_message_append(m, "sv", sn, "t", l.rlim_cur); | |
155 | ||
156 | } else if (STR_IN_SET(field, | |
157 | "CPUAccounting", "MemoryAccounting", "BlockIOAccounting", "TasksAccounting", | |
158 | "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies", | |
159 | "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit", | |
160 | "PrivateTmp", "PrivateDevices", "PrivateNetwork", "NoNewPrivileges", | |
161 | "SyslogLevelPrefix", "Delegate", "RemainAfterElapse")) { | |
162 | ||
163 | r = parse_boolean(eq); | |
164 | if (r < 0) | |
165 | return log_error_errno(r, "Failed to parse boolean assignment %s.", assignment); | |
166 | ||
167 | r = sd_bus_message_append(m, "v", "b", r); | |
168 | ||
169 | } else if (streq(field, "MemoryLimit")) { | |
170 | uint64_t bytes; | |
171 | ||
172 | if (isempty(eq) || streq(eq, "infinity")) | |
173 | bytes = (uint64_t) -1; | |
174 | else { | |
175 | r = parse_size(eq, 1024, &bytes); | |
176 | if (r < 0) { | |
177 | log_error("Failed to parse bytes specification %s", assignment); | |
178 | return -EINVAL; | |
179 | } | |
180 | } | |
181 | ||
182 | r = sd_bus_message_append(m, "v", "t", bytes); | |
183 | ||
184 | } else if (streq(field, "TasksMax")) { | |
185 | uint64_t n; | |
186 | ||
187 | if (isempty(eq) || streq(eq, "infinity")) | |
188 | n = (uint64_t) -1; | |
189 | else { | |
190 | r = safe_atou64(eq, &n); | |
191 | if (r < 0) { | |
192 | log_error("Failed to parse maximum tasks specification %s", assignment); | |
193 | return -EINVAL; | |
194 | } | |
195 | } | |
196 | ||
197 | r = sd_bus_message_append(m, "v", "t", n); | |
198 | ||
199 | } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) { | |
200 | uint64_t u; | |
201 | ||
202 | r = cg_cpu_shares_parse(eq, &u); | |
203 | if (r < 0) { | |
204 | log_error("Failed to parse %s value %s.", field, eq); | |
205 | return -EINVAL; | |
206 | } | |
207 | ||
208 | r = sd_bus_message_append(m, "v", "t", u); | |
209 | ||
210 | } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { | |
211 | uint64_t u; | |
212 | ||
213 | r = cg_cpu_shares_parse(eq, &u); | |
214 | if (r < 0) { | |
215 | log_error("Failed to parse %s value %s.", field, eq); | |
216 | return -EINVAL; | |
217 | } | |
218 | ||
219 | r = sd_bus_message_append(m, "v", "t", u); | |
220 | ||
221 | } else if (STR_IN_SET(field, | |
222 | "User", "Group", "DevicePolicy", "KillMode", | |
223 | "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", | |
224 | "StandardInput", "StandardOutput", "StandardError", | |
225 | "Description", "Slice", "Type", "WorkingDirectory", | |
226 | "RootDirectory", "SyslogIdentifier", "ProtectSystem", | |
227 | "ProtectHome")) | |
228 | r = sd_bus_message_append(m, "v", "s", eq); | |
229 | ||
230 | else if (streq(field, "SyslogLevel")) { | |
231 | int level; | |
232 | ||
233 | level = log_level_from_string(eq); | |
234 | if (level < 0) { | |
235 | log_error("Failed to parse %s value %s.", field, eq); | |
236 | return -EINVAL; | |
237 | } | |
238 | ||
239 | r = sd_bus_message_append(m, "v", "i", level); | |
240 | ||
241 | } else if (streq(field, "SyslogFacility")) { | |
242 | int facility; | |
243 | ||
244 | facility = log_facility_unshifted_from_string(eq); | |
245 | if (facility < 0) { | |
246 | log_error("Failed to parse %s value %s.", field, eq); | |
247 | return -EINVAL; | |
248 | } | |
249 | ||
250 | r = sd_bus_message_append(m, "v", "i", facility); | |
251 | ||
252 | } else if (streq(field, "DeviceAllow")) { | |
253 | ||
254 | if (isempty(eq)) | |
255 | r = sd_bus_message_append(m, "v", "a(ss)", 0); | |
256 | else { | |
257 | const char *path, *rwm, *e; | |
258 | ||
259 | e = strchr(eq, ' '); | |
260 | if (e) { | |
261 | path = strndupa(eq, e - eq); | |
262 | rwm = e+1; | |
263 | } else { | |
264 | path = eq; | |
265 | rwm = ""; | |
266 | } | |
267 | ||
268 | if (!path_startswith(path, "/dev")) { | |
269 | log_error("%s is not a device file in /dev.", path); | |
270 | return -EINVAL; | |
271 | } | |
272 | ||
273 | r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); | |
274 | } | |
275 | ||
276 | } else if (STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { | |
277 | ||
278 | if (isempty(eq)) | |
279 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
280 | else { | |
281 | const char *path, *bandwidth, *e; | |
282 | uint64_t bytes; | |
283 | ||
284 | e = strchr(eq, ' '); | |
285 | if (e) { | |
286 | path = strndupa(eq, e - eq); | |
287 | bandwidth = e+1; | |
288 | } else { | |
289 | log_error("Failed to parse %s value %s.", field, eq); | |
290 | return -EINVAL; | |
291 | } | |
292 | ||
293 | if (!path_startswith(path, "/dev")) { | |
294 | log_error("%s is not a device file in /dev.", path); | |
295 | return -EINVAL; | |
296 | } | |
297 | ||
298 | r = parse_size(bandwidth, 1000, &bytes); | |
299 | if (r < 0) { | |
300 | log_error("Failed to parse byte value %s.", bandwidth); | |
301 | return -EINVAL; | |
302 | } | |
303 | ||
304 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); | |
305 | } | |
306 | ||
307 | } else if (streq(field, "BlockIODeviceWeight")) { | |
308 | ||
309 | if (isempty(eq)) | |
310 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
311 | else { | |
312 | const char *path, *weight, *e; | |
313 | uint64_t u; | |
314 | ||
315 | e = strchr(eq, ' '); | |
316 | if (e) { | |
317 | path = strndupa(eq, e - eq); | |
318 | weight = e+1; | |
319 | } else { | |
320 | log_error("Failed to parse %s value %s.", field, eq); | |
321 | return -EINVAL; | |
322 | } | |
323 | ||
324 | if (!path_startswith(path, "/dev")) { | |
325 | log_error("%s is not a device file in /dev.", path); | |
326 | return -EINVAL; | |
327 | } | |
328 | ||
329 | r = safe_atou64(weight, &u); | |
330 | if (r < 0) { | |
331 | log_error("Failed to parse %s value %s.", field, weight); | |
332 | return -EINVAL; | |
333 | } | |
334 | r = sd_bus_message_append(m, "v", "a(st)", path, u); | |
335 | } | |
336 | ||
337 | } else if (streq(field, "Nice")) { | |
338 | int32_t i; | |
339 | ||
340 | r = safe_atoi32(eq, &i); | |
341 | if (r < 0) { | |
342 | log_error("Failed to parse %s value %s.", field, eq); | |
343 | return -EINVAL; | |
344 | } | |
345 | ||
346 | r = sd_bus_message_append(m, "v", "i", i); | |
347 | ||
348 | } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) { | |
349 | const char *p; | |
350 | ||
351 | r = sd_bus_message_open_container(m, 'v', "as"); | |
352 | if (r < 0) | |
353 | return bus_log_create_error(r); | |
354 | ||
355 | r = sd_bus_message_open_container(m, 'a', "s"); | |
356 | if (r < 0) | |
357 | return bus_log_create_error(r); | |
358 | ||
359 | p = eq; | |
360 | ||
361 | for (;;) { | |
362 | _cleanup_free_ char *word = NULL; | |
363 | ||
364 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); | |
365 | if (r < 0) { | |
366 | log_error("Failed to parse Environment value %s", eq); | |
367 | return -EINVAL; | |
368 | } | |
369 | if (r == 0) | |
370 | break; | |
371 | ||
372 | if (streq(field, "Environment")) { | |
373 | if (!env_assignment_is_valid(word)) { | |
374 | log_error("Invalid environment assignment: %s", word); | |
375 | return -EINVAL; | |
376 | } | |
377 | } else { /* PassEnvironment */ | |
378 | if (!env_name_is_valid(word)) { | |
379 | log_error("Invalid environment variable name: %s", word); | |
380 | return -EINVAL; | |
381 | } | |
382 | } | |
383 | ||
384 | r = sd_bus_message_append_basic(m, 's', word); | |
385 | if (r < 0) | |
386 | return bus_log_create_error(r); | |
387 | } | |
388 | ||
389 | r = sd_bus_message_close_container(m); | |
390 | if (r < 0) | |
391 | return bus_log_create_error(r); | |
392 | ||
393 | r = sd_bus_message_close_container(m); | |
394 | ||
395 | } else if (streq(field, "KillSignal")) { | |
396 | int sig; | |
397 | ||
398 | sig = signal_from_string_try_harder(eq); | |
399 | if (sig < 0) { | |
400 | log_error("Failed to parse %s value %s.", field, eq); | |
401 | return -EINVAL; | |
402 | } | |
403 | ||
404 | r = sd_bus_message_append(m, "v", "i", sig); | |
405 | ||
406 | } else if (streq(field, "TimerSlackNSec")) { | |
407 | nsec_t n; | |
408 | ||
409 | r = parse_nsec(eq, &n); | |
410 | if (r < 0) { | |
411 | log_error("Failed to parse %s value %s", field, eq); | |
412 | return -EINVAL; | |
413 | } | |
414 | ||
415 | r = sd_bus_message_append(m, "v", "t", n); | |
416 | } else if (streq(field, "OOMScoreAdjust")) { | |
417 | int oa; | |
418 | ||
419 | r = safe_atoi(eq, &oa); | |
420 | if (r < 0) { | |
421 | log_error("Failed to parse %s value %s", field, eq); | |
422 | return -EINVAL; | |
423 | } | |
424 | ||
425 | if (!oom_score_adjust_is_valid(oa)) { | |
426 | log_error("OOM score adjust value out of range"); | |
427 | return -EINVAL; | |
428 | } | |
429 | ||
430 | r = sd_bus_message_append(m, "v", "i", oa); | |
431 | } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories")) { | |
432 | const char *p; | |
433 | ||
434 | r = sd_bus_message_open_container(m, 'v', "as"); | |
435 | if (r < 0) | |
436 | return bus_log_create_error(r); | |
437 | ||
438 | r = sd_bus_message_open_container(m, 'a', "s"); | |
439 | if (r < 0) | |
440 | return bus_log_create_error(r); | |
441 | ||
442 | p = eq; | |
443 | ||
444 | for (;;) { | |
445 | _cleanup_free_ char *word = NULL; | |
446 | int offset; | |
447 | ||
448 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
449 | if (r < 0) { | |
450 | log_error("Failed to parse %s value %s", field, eq); | |
451 | return -EINVAL; | |
452 | } | |
453 | if (r == 0) | |
454 | break; | |
455 | ||
456 | if (!utf8_is_valid(word)) { | |
457 | log_error("Failed to parse %s value %s", field, eq); | |
458 | return -EINVAL; | |
459 | } | |
460 | ||
461 | offset = word[0] == '-'; | |
462 | if (!path_is_absolute(word + offset)) { | |
463 | log_error("Failed to parse %s value %s", field, eq); | |
464 | return -EINVAL; | |
465 | } | |
466 | ||
467 | path_kill_slashes(word + offset); | |
468 | ||
469 | r = sd_bus_message_append_basic(m, 's', word); | |
470 | if (r < 0) | |
471 | return bus_log_create_error(r); | |
472 | } | |
473 | ||
474 | r = sd_bus_message_close_container(m); | |
475 | if (r < 0) | |
476 | return bus_log_create_error(r); | |
477 | ||
478 | r = sd_bus_message_close_container(m); | |
479 | ||
480 | } else if (streq(field, "RuntimeDirectory")) { | |
481 | const char *p; | |
482 | ||
483 | r = sd_bus_message_open_container(m, 'v', "as"); | |
484 | if (r < 0) | |
485 | return bus_log_create_error(r); | |
486 | ||
487 | r = sd_bus_message_open_container(m, 'a', "s"); | |
488 | if (r < 0) | |
489 | return bus_log_create_error(r); | |
490 | ||
491 | p = eq; | |
492 | ||
493 | for (;;) { | |
494 | _cleanup_free_ char *word = NULL; | |
495 | ||
496 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
497 | if (r < 0) | |
498 | return log_error_errno(r, "Failed to parse %s value %s", field, eq); | |
499 | ||
500 | if (r == 0) | |
501 | break; | |
502 | ||
503 | r = sd_bus_message_append_basic(m, 's', word); | |
504 | if (r < 0) | |
505 | return bus_log_create_error(r); | |
506 | } | |
507 | ||
508 | r = sd_bus_message_close_container(m); | |
509 | if (r < 0) | |
510 | return bus_log_create_error(r); | |
511 | ||
512 | r = sd_bus_message_close_container(m); | |
513 | ||
514 | } else { | |
515 | log_error("Unknown assignment %s.", assignment); | |
516 | return -EINVAL; | |
517 | } | |
518 | ||
519 | finish: | |
520 | if (r < 0) | |
521 | return bus_log_create_error(r); | |
522 | ||
523 | r = sd_bus_message_close_container(m); | |
524 | if (r < 0) | |
525 | return bus_log_create_error(r); | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | typedef struct BusWaitForJobs { | |
531 | sd_bus *bus; | |
532 | Set *jobs; | |
533 | ||
534 | char *name; | |
535 | char *result; | |
536 | ||
537 | sd_bus_slot *slot_job_removed; | |
538 | sd_bus_slot *slot_disconnected; | |
539 | } BusWaitForJobs; | |
540 | ||
541 | static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
542 | assert(m); | |
543 | ||
544 | log_error("Warning! D-Bus connection terminated."); | |
545 | sd_bus_close(sd_bus_message_get_bus(m)); | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
550 | static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
551 | const char *path, *unit, *result; | |
552 | BusWaitForJobs *d = userdata; | |
553 | uint32_t id; | |
554 | char *found; | |
555 | int r; | |
556 | ||
557 | assert(m); | |
558 | assert(d); | |
559 | ||
560 | r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); | |
561 | if (r < 0) { | |
562 | bus_log_parse_error(r); | |
563 | return 0; | |
564 | } | |
565 | ||
566 | found = set_remove(d->jobs, (char*) path); | |
567 | if (!found) | |
568 | return 0; | |
569 | ||
570 | free(found); | |
571 | ||
572 | if (!isempty(result)) | |
573 | d->result = strdup(result); | |
574 | ||
575 | if (!isempty(unit)) | |
576 | d->name = strdup(unit); | |
577 | ||
578 | return 0; | |
579 | } | |
580 | ||
581 | void bus_wait_for_jobs_free(BusWaitForJobs *d) { | |
582 | if (!d) | |
583 | return; | |
584 | ||
585 | set_free_free(d->jobs); | |
586 | ||
587 | sd_bus_slot_unref(d->slot_disconnected); | |
588 | sd_bus_slot_unref(d->slot_job_removed); | |
589 | ||
590 | sd_bus_unref(d->bus); | |
591 | ||
592 | free(d->name); | |
593 | free(d->result); | |
594 | ||
595 | free(d); | |
596 | } | |
597 | ||
598 | int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { | |
599 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; | |
600 | int r; | |
601 | ||
602 | assert(bus); | |
603 | assert(ret); | |
604 | ||
605 | d = new0(BusWaitForJobs, 1); | |
606 | if (!d) | |
607 | return -ENOMEM; | |
608 | ||
609 | d->bus = sd_bus_ref(bus); | |
610 | ||
611 | /* When we are a bus client we match by sender. Direct | |
612 | * connections OTOH have no initialized sender field, and | |
613 | * hence we ignore the sender then */ | |
614 | r = sd_bus_add_match( | |
615 | bus, | |
616 | &d->slot_job_removed, | |
617 | bus->bus_client ? | |
618 | "type='signal'," | |
619 | "sender='org.freedesktop.systemd1'," | |
620 | "interface='org.freedesktop.systemd1.Manager'," | |
621 | "member='JobRemoved'," | |
622 | "path='/org/freedesktop/systemd1'" : | |
623 | "type='signal'," | |
624 | "interface='org.freedesktop.systemd1.Manager'," | |
625 | "member='JobRemoved'," | |
626 | "path='/org/freedesktop/systemd1'", | |
627 | match_job_removed, d); | |
628 | if (r < 0) | |
629 | return r; | |
630 | ||
631 | r = sd_bus_add_match( | |
632 | bus, | |
633 | &d->slot_disconnected, | |
634 | "type='signal'," | |
635 | "sender='org.freedesktop.DBus.Local'," | |
636 | "interface='org.freedesktop.DBus.Local'," | |
637 | "member='Disconnected'", | |
638 | match_disconnected, d); | |
639 | if (r < 0) | |
640 | return r; | |
641 | ||
642 | *ret = d; | |
643 | d = NULL; | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
648 | static int bus_process_wait(sd_bus *bus) { | |
649 | int r; | |
650 | ||
651 | for (;;) { | |
652 | r = sd_bus_process(bus, NULL); | |
653 | if (r < 0) | |
654 | return r; | |
655 | if (r > 0) | |
656 | return 0; | |
657 | ||
658 | r = sd_bus_wait(bus, (uint64_t) -1); | |
659 | if (r < 0) | |
660 | return r; | |
661 | } | |
662 | } | |
663 | ||
664 | static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { | |
665 | _cleanup_free_ char *dbus_path = NULL; | |
666 | ||
667 | assert(d); | |
668 | assert(d->name); | |
669 | assert(result); | |
670 | ||
671 | dbus_path = unit_dbus_path_from_name(d->name); | |
672 | if (!dbus_path) | |
673 | return -ENOMEM; | |
674 | ||
675 | return sd_bus_get_property_string(d->bus, | |
676 | "org.freedesktop.systemd1", | |
677 | dbus_path, | |
678 | "org.freedesktop.systemd1.Service", | |
679 | "Result", | |
680 | NULL, | |
681 | result); | |
682 | } | |
683 | ||
684 | static const struct { | |
685 | const char *result, *explanation; | |
686 | } explanations [] = { | |
0b2de9d9 | 687 | { "resources", "of unavailable resources or another system error" }, |
20b16441 LP |
688 | { "timeout", "a timeout was exceeded" }, |
689 | { "exit-code", "the control process exited with error code" }, | |
690 | { "signal", "a fatal signal was delivered to the control process" }, | |
691 | { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, | |
692 | { "watchdog", "the service failed to send watchdog ping" }, | |
693 | { "start-limit", "start of the service was attempted too often" } | |
694 | }; | |
695 | ||
696 | static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) { | |
697 | _cleanup_free_ char *service_shell_quoted = NULL; | |
698 | const char *systemctl = "systemctl", *journalctl = "journalctl"; | |
699 | ||
700 | assert(service); | |
701 | ||
702 | service_shell_quoted = shell_maybe_quote(service); | |
703 | ||
704 | if (extra_args && extra_args[1]) { | |
705 | _cleanup_free_ char *t; | |
706 | ||
707 | t = strv_join((char**) extra_args, " "); | |
708 | systemctl = strjoina("systemctl ", t ? : "<args>"); | |
709 | journalctl = strjoina("journalctl ", t ? : "<args>"); | |
710 | } | |
711 | ||
712 | if (!isempty(result)) { | |
713 | unsigned i; | |
714 | ||
715 | for (i = 0; i < ELEMENTSOF(explanations); ++i) | |
716 | if (streq(result, explanations[i].result)) | |
717 | break; | |
718 | ||
719 | if (i < ELEMENTSOF(explanations)) { | |
720 | log_error("Job for %s failed because %s.\n" | |
721 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
722 | service, | |
723 | explanations[i].explanation, | |
724 | systemctl, | |
725 | service_shell_quoted ?: "<service>", | |
726 | journalctl); | |
727 | goto finish; | |
728 | } | |
729 | } | |
730 | ||
731 | log_error("Job for %s failed.\n" | |
732 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
733 | service, | |
734 | systemctl, | |
735 | service_shell_quoted ?: "<service>", | |
736 | journalctl); | |
737 | ||
738 | finish: | |
739 | /* For some results maybe additional explanation is required */ | |
740 | if (streq_ptr(result, "start-limit")) | |
741 | log_info("To force a start use \"%1$s reset-failed %2$s\"\n" | |
742 | "followed by \"%1$s start %2$s\" again.", | |
743 | systemctl, | |
744 | service_shell_quoted ?: "<service>"); | |
745 | } | |
746 | ||
747 | static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
748 | int r = 0; | |
749 | ||
750 | assert(d->result); | |
751 | ||
752 | if (!quiet) { | |
753 | if (streq(d->result, "canceled")) | |
754 | log_error("Job for %s canceled.", strna(d->name)); | |
755 | else if (streq(d->result, "timeout")) | |
756 | log_error("Job for %s timed out.", strna(d->name)); | |
757 | else if (streq(d->result, "dependency")) | |
758 | log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); | |
759 | else if (streq(d->result, "invalid")) | |
760 | log_error("%s is not active, cannot reload.", strna(d->name)); | |
761 | else if (streq(d->result, "assert")) | |
762 | log_error("Assertion failed on job for %s.", strna(d->name)); | |
763 | else if (streq(d->result, "unsupported")) | |
764 | log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); | |
765 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { | |
766 | if (d->name) { | |
767 | int q; | |
768 | _cleanup_free_ char *result = NULL; | |
769 | ||
770 | q = bus_job_get_service_result(d, &result); | |
771 | if (q < 0) | |
772 | log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); | |
773 | ||
774 | log_job_error_with_service_result(d->name, result, extra_args); | |
775 | } else | |
776 | log_error("Job failed. See \"journalctl -xe\" for details."); | |
777 | } | |
778 | } | |
779 | ||
780 | if (streq(d->result, "canceled")) | |
781 | r = -ECANCELED; | |
782 | else if (streq(d->result, "timeout")) | |
783 | r = -ETIME; | |
784 | else if (streq(d->result, "dependency")) | |
785 | r = -EIO; | |
786 | else if (streq(d->result, "invalid")) | |
787 | r = -ENOEXEC; | |
788 | else if (streq(d->result, "assert")) | |
789 | r = -EPROTO; | |
790 | else if (streq(d->result, "unsupported")) | |
791 | r = -EOPNOTSUPP; | |
792 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) | |
793 | r = -EIO; | |
794 | ||
795 | return r; | |
796 | } | |
797 | ||
798 | int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
799 | int r = 0; | |
800 | ||
801 | assert(d); | |
802 | ||
803 | while (!set_isempty(d->jobs)) { | |
804 | int q; | |
805 | ||
806 | q = bus_process_wait(d->bus); | |
807 | if (q < 0) | |
808 | return log_error_errno(q, "Failed to wait for response: %m"); | |
809 | ||
810 | if (d->result) { | |
811 | q = check_wait_response(d, quiet, extra_args); | |
812 | /* Return the first error as it is most likely to be | |
813 | * meaningful. */ | |
814 | if (q < 0 && r == 0) | |
815 | r = q; | |
816 | ||
817 | log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); | |
818 | } | |
819 | ||
820 | d->name = mfree(d->name); | |
821 | d->result = mfree(d->result); | |
822 | } | |
823 | ||
824 | return r; | |
825 | } | |
826 | ||
827 | int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { | |
828 | int r; | |
829 | ||
830 | assert(d); | |
831 | ||
832 | r = set_ensure_allocated(&d->jobs, &string_hash_ops); | |
833 | if (r < 0) | |
834 | return r; | |
835 | ||
836 | return set_put_strdup(d->jobs, path); | |
837 | } | |
838 | ||
839 | int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { | |
840 | int r; | |
841 | ||
842 | r = bus_wait_for_jobs_add(d, path); | |
843 | if (r < 0) | |
844 | return log_oom(); | |
845 | ||
846 | return bus_wait_for_jobs(d, quiet, NULL); | |
847 | } | |
848 | ||
849 | int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { | |
850 | const char *type, *path, *source; | |
851 | int r; | |
852 | ||
853 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); | |
854 | if (r < 0) | |
855 | return bus_log_parse_error(r); | |
856 | ||
857 | while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { | |
858 | /* We expect only "success" changes to be sent over the bus. | |
859 | Hence, reject anything negative. */ | |
860 | UnitFileChangeType ch = unit_file_change_type_from_string(type); | |
861 | ||
862 | if (ch < 0) { | |
863 | log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path); | |
864 | continue; | |
865 | } | |
866 | ||
867 | r = unit_file_changes_add(changes, n_changes, ch, path, source); | |
868 | if (r < 0) | |
869 | return r; | |
870 | } | |
871 | if (r < 0) | |
872 | return bus_log_parse_error(r); | |
873 | ||
874 | r = sd_bus_message_exit_container(m); | |
875 | if (r < 0) | |
876 | return bus_log_parse_error(r); | |
877 | ||
878 | unit_file_dump_changes(0, NULL, *changes, *n_changes, false); | |
879 | return 0; | |
880 | } | |
881 | ||
291d565a LP |
882 | struct CGroupInfo { |
883 | char *cgroup_path; | |
884 | bool is_const; /* If false, cgroup_path should be free()'d */ | |
885 | ||
886 | Hashmap *pids; /* PID → process name */ | |
887 | bool done; | |
888 | ||
889 | struct CGroupInfo *parent; | |
890 | LIST_FIELDS(struct CGroupInfo, siblings); | |
891 | LIST_HEAD(struct CGroupInfo, children); | |
892 | size_t n_children; | |
893 | }; | |
894 | ||
895 | static bool IS_ROOT(const char *p) { | |
896 | return isempty(p) || streq(p, "/"); | |
897 | } | |
898 | ||
899 | static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) { | |
900 | struct CGroupInfo *parent = NULL, *cg; | |
901 | int r; | |
902 | ||
903 | assert(cgroups); | |
904 | assert(ret); | |
905 | ||
906 | if (IS_ROOT(path)) | |
907 | path = "/"; | |
908 | ||
909 | cg = hashmap_get(cgroups, path); | |
910 | if (cg) { | |
911 | *ret = cg; | |
912 | return 0; | |
913 | } | |
914 | ||
915 | if (!IS_ROOT(path)) { | |
916 | const char *e, *pp; | |
917 | ||
918 | e = strrchr(path, '/'); | |
919 | if (!e) | |
920 | return -EINVAL; | |
921 | ||
922 | pp = strndupa(path, e - path); | |
923 | if (!pp) | |
924 | return -ENOMEM; | |
925 | ||
926 | r = add_cgroup(cgroups, pp, false, &parent); | |
927 | if (r < 0) | |
928 | return r; | |
929 | } | |
930 | ||
931 | cg = new0(struct CGroupInfo, 1); | |
932 | if (!cg) | |
933 | return -ENOMEM; | |
934 | ||
935 | if (is_const) | |
936 | cg->cgroup_path = (char*) path; | |
937 | else { | |
938 | cg->cgroup_path = strdup(path); | |
939 | if (!cg->cgroup_path) { | |
940 | free(cg); | |
941 | return -ENOMEM; | |
942 | } | |
943 | } | |
944 | ||
945 | cg->is_const = is_const; | |
946 | cg->parent = parent; | |
947 | ||
948 | r = hashmap_put(cgroups, cg->cgroup_path, cg); | |
949 | if (r < 0) { | |
950 | if (!is_const) | |
951 | free(cg->cgroup_path); | |
952 | free(cg); | |
953 | return r; | |
954 | } | |
955 | ||
956 | if (parent) { | |
957 | LIST_PREPEND(siblings, parent->children, cg); | |
958 | parent->n_children++; | |
959 | } | |
960 | ||
961 | *ret = cg; | |
962 | return 1; | |
963 | } | |
964 | ||
965 | static int add_process( | |
966 | Hashmap *cgroups, | |
967 | const char *path, | |
968 | pid_t pid, | |
969 | const char *name) { | |
970 | ||
971 | struct CGroupInfo *cg; | |
972 | int r; | |
973 | ||
974 | assert(cgroups); | |
975 | assert(name); | |
976 | assert(pid > 0); | |
977 | ||
978 | r = add_cgroup(cgroups, path, true, &cg); | |
979 | if (r < 0) | |
980 | return r; | |
981 | ||
982 | r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops); | |
983 | if (r < 0) | |
984 | return r; | |
985 | ||
986 | return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name); | |
987 | } | |
988 | ||
989 | static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) { | |
990 | assert(cgroups); | |
991 | assert(cg); | |
992 | ||
993 | while (cg->children) | |
994 | remove_cgroup(cgroups, cg->children); | |
995 | ||
996 | hashmap_remove(cgroups, cg->cgroup_path); | |
997 | ||
998 | if (!cg->is_const) | |
999 | free(cg->cgroup_path); | |
1000 | ||
1001 | hashmap_free(cg->pids); | |
1002 | ||
1003 | if (cg->parent) | |
1004 | LIST_REMOVE(siblings, cg->parent->children, cg); | |
1005 | ||
1006 | free(cg); | |
1007 | } | |
1008 | ||
1009 | static int cgroup_info_compare_func(const void *a, const void *b) { | |
1010 | const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b; | |
1011 | ||
1012 | assert(x); | |
1013 | assert(y); | |
1014 | ||
1015 | return strcmp(x->cgroup_path, y->cgroup_path); | |
1016 | } | |
1017 | ||
1018 | static int dump_processes( | |
1019 | Hashmap *cgroups, | |
1020 | const char *cgroup_path, | |
1021 | const char *prefix, | |
1022 | unsigned n_columns, | |
1023 | OutputFlags flags) { | |
1024 | ||
1025 | struct CGroupInfo *cg; | |
1026 | int r; | |
1027 | ||
1028 | assert(prefix); | |
1029 | ||
1030 | if (IS_ROOT(cgroup_path)) | |
1031 | cgroup_path = "/"; | |
1032 | ||
1033 | cg = hashmap_get(cgroups, cgroup_path); | |
1034 | if (!cg) | |
1035 | return 0; | |
1036 | ||
1037 | if (!hashmap_isempty(cg->pids)) { | |
1038 | const char *name; | |
1039 | size_t n = 0, i; | |
1040 | pid_t *pids; | |
1041 | void *pidp; | |
1042 | Iterator j; | |
1043 | int width; | |
1044 | ||
1045 | /* Order processes by their PID */ | |
1046 | pids = newa(pid_t, hashmap_size(cg->pids)); | |
1047 | ||
1048 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) | |
1049 | pids[n++] = PTR_TO_PID(pidp); | |
1050 | ||
1051 | assert(n == hashmap_size(cg->pids)); | |
1052 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1053 | ||
1054 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1055 | ||
1056 | for (i = 0; i < n; i++) { | |
1057 | _cleanup_free_ char *e = NULL; | |
1058 | const char *special; | |
1059 | bool more; | |
1060 | ||
1061 | name = hashmap_get(cg->pids, PID_TO_PTR(pids[i])); | |
1062 | assert(name); | |
1063 | ||
1064 | if (n_columns != 0) { | |
1065 | unsigned k; | |
1066 | ||
1067 | k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1068 | ||
1069 | e = ellipsize(name, k, 100); | |
1070 | if (e) | |
1071 | name = e; | |
1072 | } | |
1073 | ||
1074 | more = i+1 < n || cg->children; | |
1075 | special = draw_special_char(more ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT); | |
1076 | ||
1077 | fprintf(stdout, "%s%s%*"PID_PRI" %s\n", | |
1078 | prefix, | |
1079 | special, | |
1080 | width, pids[i], | |
1081 | name); | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | if (cg->children) { | |
1086 | struct CGroupInfo **children, *child; | |
1087 | size_t n = 0, i; | |
1088 | ||
1089 | /* Order subcgroups by their name */ | |
1090 | children = newa(struct CGroupInfo*, cg->n_children); | |
1091 | LIST_FOREACH(siblings, child, cg->children) | |
1092 | children[n++] = child; | |
1093 | assert(n == cg->n_children); | |
1094 | qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func); | |
1095 | ||
1096 | n_columns = MAX(LESS_BY(n_columns, 2U), 20U); | |
1097 | ||
1098 | for (i = 0; i < n; i++) { | |
1099 | _cleanup_free_ char *pp = NULL; | |
1100 | const char *name, *special; | |
1101 | bool more; | |
1102 | ||
1103 | child = children[i]; | |
1104 | ||
1105 | name = strrchr(child->cgroup_path, '/'); | |
1106 | if (!name) | |
1107 | return -EINVAL; | |
1108 | name++; | |
1109 | ||
1110 | more = i+1 < n; | |
1111 | special = draw_special_char(more ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT); | |
1112 | ||
1113 | fputs(prefix, stdout); | |
1114 | fputs(special, stdout); | |
1115 | fputs(name, stdout); | |
1116 | fputc('\n', stdout); | |
1117 | ||
1118 | special = draw_special_char(more ? DRAW_TREE_VERTICAL : DRAW_TREE_SPACE); | |
1119 | ||
1120 | pp = strappend(prefix, special); | |
1121 | if (!pp) | |
1122 | return -ENOMEM; | |
1123 | ||
1124 | r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags); | |
1125 | if (r < 0) | |
1126 | return r; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | cg->done = true; | |
1131 | return 0; | |
1132 | } | |
1133 | ||
1134 | static int dump_extra_processes( | |
1135 | Hashmap *cgroups, | |
1136 | const char *prefix, | |
1137 | unsigned n_columns, | |
1138 | OutputFlags flags) { | |
1139 | ||
1140 | _cleanup_free_ pid_t *pids = NULL; | |
1141 | _cleanup_hashmap_free_ Hashmap *names = NULL; | |
1142 | struct CGroupInfo *cg; | |
1143 | size_t n_allocated = 0, n = 0, k; | |
1144 | Iterator i; | |
1145 | int width, r; | |
1146 | ||
1147 | /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as | |
1148 | * combined, sorted, linear list. */ | |
1149 | ||
1150 | HASHMAP_FOREACH(cg, cgroups, i) { | |
1151 | const char *name; | |
1152 | void *pidp; | |
1153 | Iterator j; | |
1154 | ||
1155 | if (cg->done) | |
1156 | continue; | |
1157 | ||
1158 | if (hashmap_isempty(cg->pids)) | |
1159 | continue; | |
1160 | ||
1161 | r = hashmap_ensure_allocated(&names, &trivial_hash_ops); | |
1162 | if (r < 0) | |
1163 | return r; | |
1164 | ||
1165 | if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids))) | |
1166 | return -ENOMEM; | |
1167 | ||
1168 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) { | |
1169 | pids[n++] = PTR_TO_PID(pidp); | |
1170 | ||
1171 | r = hashmap_put(names, pidp, (void*) name); | |
1172 | if (r < 0) | |
1173 | return r; | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | if (n == 0) | |
1178 | return 0; | |
1179 | ||
1180 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1181 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1182 | ||
1183 | for (k = 0; k < n; k++) { | |
1184 | _cleanup_free_ char *e = NULL; | |
1185 | const char *name; | |
1186 | ||
1187 | name = hashmap_get(names, PID_TO_PTR(pids[k])); | |
1188 | assert(name); | |
1189 | ||
1190 | if (n_columns != 0) { | |
1191 | unsigned z; | |
1192 | ||
1193 | z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1194 | ||
1195 | e = ellipsize(name, z, 100); | |
1196 | if (e) | |
1197 | name = e; | |
1198 | } | |
1199 | ||
1200 | fprintf(stdout, "%s%s %*" PID_PRI " %s\n", | |
1201 | prefix, | |
1202 | draw_special_char(DRAW_TRIANGULAR_BULLET), | |
1203 | width, pids[k], | |
1204 | name); | |
1205 | } | |
1206 | ||
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | int unit_show_processes( | |
1211 | sd_bus *bus, | |
1212 | const char *unit, | |
1213 | const char *cgroup_path, | |
1214 | const char *prefix, | |
1215 | unsigned n_columns, | |
1216 | OutputFlags flags, | |
1217 | sd_bus_error *error) { | |
1218 | ||
1219 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1220 | Hashmap *cgroups = NULL; | |
1221 | struct CGroupInfo *cg; | |
1222 | int r; | |
1223 | ||
1224 | assert(bus); | |
1225 | assert(unit); | |
1226 | ||
1227 | if (flags & OUTPUT_FULL_WIDTH) | |
1228 | n_columns = 0; | |
1229 | else if (n_columns <= 0) | |
1230 | n_columns = columns(); | |
1231 | ||
1232 | prefix = strempty(prefix); | |
1233 | ||
1234 | r = sd_bus_call_method( | |
1235 | bus, | |
1236 | "org.freedesktop.systemd1", | |
1237 | "/org/freedesktop/systemd1", | |
1238 | "org.freedesktop.systemd1.Manager", | |
1239 | "GetUnitProcesses", | |
1240 | error, | |
1241 | &reply, | |
1242 | "s", | |
1243 | unit); | |
1244 | if (r < 0) | |
1245 | return r; | |
1246 | ||
1247 | cgroups = hashmap_new(&string_hash_ops); | |
1248 | if (!cgroups) | |
1249 | return -ENOMEM; | |
1250 | ||
1251 | r = sd_bus_message_enter_container(reply, 'a', "(sus)"); | |
1252 | if (r < 0) | |
1253 | goto finish; | |
1254 | ||
1255 | for (;;) { | |
1256 | const char *path = NULL, *name = NULL; | |
1257 | uint32_t pid; | |
1258 | ||
1259 | r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name); | |
1260 | if (r < 0) | |
1261 | goto finish; | |
1262 | if (r == 0) | |
1263 | break; | |
1264 | ||
1265 | r = add_process(cgroups, path, pid, name); | |
1266 | if (r < 0) | |
1267 | goto finish; | |
1268 | } | |
1269 | ||
1270 | r = sd_bus_message_exit_container(reply); | |
1271 | if (r < 0) | |
1272 | goto finish; | |
1273 | ||
1274 | r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags); | |
1275 | if (r < 0) | |
1276 | goto finish; | |
1277 | ||
1278 | r = dump_extra_processes(cgroups, prefix, n_columns, flags); | |
1279 | ||
1280 | finish: | |
1281 | while ((cg = hashmap_first(cgroups))) | |
1282 | remove_cgroup(cgroups, cg); | |
1283 | ||
1284 | hashmap_free(cgroups); | |
1285 | ||
1286 | return r; | |
1287 | } |