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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, | |
13c31542 | 157 | "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", "TasksAccounting", |
20b16441 LP |
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 | ||
da4d897e | 169 | } else if (STR_IN_SET(field, "MemoryLow", "MemoryHigh", "MemoryMax", "MemoryLimit")) { |
20b16441 LP |
170 | uint64_t bytes; |
171 | ||
da4d897e TH |
172 | if (isempty(eq) || streq(eq, "max") || streq(eq, "infinity")) |
173 | bytes = CGROUP_LIMIT_MAX; | |
20b16441 LP |
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 | ||
13c31542 TH |
210 | } else if (STR_IN_SET(field, "IOWeight", "StartupIOWeight")) { |
211 | uint64_t u; | |
212 | ||
213 | r = cg_weight_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 | ||
20b16441 LP |
221 | } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { |
222 | uint64_t u; | |
223 | ||
3fdf9ad7 | 224 | r = cg_blkio_weight_parse(eq, &u); |
20b16441 LP |
225 | if (r < 0) { |
226 | log_error("Failed to parse %s value %s.", field, eq); | |
227 | return -EINVAL; | |
228 | } | |
229 | ||
230 | r = sd_bus_message_append(m, "v", "t", u); | |
231 | ||
232 | } else if (STR_IN_SET(field, | |
233 | "User", "Group", "DevicePolicy", "KillMode", | |
234 | "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", | |
235 | "StandardInput", "StandardOutput", "StandardError", | |
236 | "Description", "Slice", "Type", "WorkingDirectory", | |
237 | "RootDirectory", "SyslogIdentifier", "ProtectSystem", | |
186ad4b1 | 238 | "ProtectHome", "SELinuxContext")) |
20b16441 LP |
239 | r = sd_bus_message_append(m, "v", "s", eq); |
240 | ||
241 | else if (streq(field, "SyslogLevel")) { | |
242 | int level; | |
243 | ||
244 | level = log_level_from_string(eq); | |
245 | if (level < 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", level); | |
251 | ||
252 | } else if (streq(field, "SyslogFacility")) { | |
253 | int facility; | |
254 | ||
255 | facility = log_facility_unshifted_from_string(eq); | |
256 | if (facility < 0) { | |
257 | log_error("Failed to parse %s value %s.", field, eq); | |
258 | return -EINVAL; | |
259 | } | |
260 | ||
261 | r = sd_bus_message_append(m, "v", "i", facility); | |
262 | ||
263 | } else if (streq(field, "DeviceAllow")) { | |
264 | ||
265 | if (isempty(eq)) | |
266 | r = sd_bus_message_append(m, "v", "a(ss)", 0); | |
267 | else { | |
268 | const char *path, *rwm, *e; | |
269 | ||
270 | e = strchr(eq, ' '); | |
271 | if (e) { | |
272 | path = strndupa(eq, e - eq); | |
273 | rwm = e+1; | |
274 | } else { | |
275 | path = eq; | |
276 | rwm = ""; | |
277 | } | |
278 | ||
279 | if (!path_startswith(path, "/dev")) { | |
280 | log_error("%s is not a device file in /dev.", path); | |
281 | return -EINVAL; | |
282 | } | |
283 | ||
284 | r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); | |
285 | } | |
286 | ||
9be57249 | 287 | } else if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { |
20b16441 LP |
288 | |
289 | if (isempty(eq)) | |
290 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
291 | else { | |
292 | const char *path, *bandwidth, *e; | |
293 | uint64_t bytes; | |
294 | ||
295 | e = strchr(eq, ' '); | |
296 | if (e) { | |
297 | path = strndupa(eq, e - eq); | |
298 | bandwidth = e+1; | |
299 | } else { | |
300 | log_error("Failed to parse %s value %s.", field, eq); | |
301 | return -EINVAL; | |
302 | } | |
303 | ||
304 | if (!path_startswith(path, "/dev")) { | |
305 | log_error("%s is not a device file in /dev.", path); | |
306 | return -EINVAL; | |
307 | } | |
308 | ||
13c31542 TH |
309 | if (streq(bandwidth, "max")) { |
310 | bytes = CGROUP_LIMIT_MAX; | |
311 | } else { | |
312 | r = parse_size(bandwidth, 1000, &bytes); | |
313 | if (r < 0) { | |
314 | log_error("Failed to parse byte value %s.", bandwidth); | |
315 | return -EINVAL; | |
316 | } | |
20b16441 LP |
317 | } |
318 | ||
319 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); | |
320 | } | |
321 | ||
13c31542 | 322 | } else if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) { |
20b16441 LP |
323 | |
324 | if (isempty(eq)) | |
325 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
326 | else { | |
327 | const char *path, *weight, *e; | |
328 | uint64_t u; | |
329 | ||
330 | e = strchr(eq, ' '); | |
331 | if (e) { | |
332 | path = strndupa(eq, e - eq); | |
333 | weight = e+1; | |
334 | } else { | |
335 | log_error("Failed to parse %s value %s.", field, eq); | |
336 | return -EINVAL; | |
337 | } | |
338 | ||
339 | if (!path_startswith(path, "/dev")) { | |
340 | log_error("%s is not a device file in /dev.", path); | |
341 | return -EINVAL; | |
342 | } | |
343 | ||
344 | r = safe_atou64(weight, &u); | |
345 | if (r < 0) { | |
346 | log_error("Failed to parse %s value %s.", field, weight); | |
347 | return -EINVAL; | |
348 | } | |
096a4d53 | 349 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, u); |
20b16441 LP |
350 | } |
351 | ||
352 | } else if (streq(field, "Nice")) { | |
353 | int32_t i; | |
354 | ||
355 | r = safe_atoi32(eq, &i); | |
356 | if (r < 0) { | |
357 | log_error("Failed to parse %s value %s.", field, eq); | |
358 | return -EINVAL; | |
359 | } | |
360 | ||
361 | r = sd_bus_message_append(m, "v", "i", i); | |
362 | ||
363 | } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) { | |
364 | const char *p; | |
365 | ||
366 | r = sd_bus_message_open_container(m, 'v', "as"); | |
367 | if (r < 0) | |
368 | return bus_log_create_error(r); | |
369 | ||
370 | r = sd_bus_message_open_container(m, 'a', "s"); | |
371 | if (r < 0) | |
372 | return bus_log_create_error(r); | |
373 | ||
374 | p = eq; | |
375 | ||
376 | for (;;) { | |
377 | _cleanup_free_ char *word = NULL; | |
378 | ||
379 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); | |
380 | if (r < 0) { | |
381 | log_error("Failed to parse Environment value %s", eq); | |
382 | return -EINVAL; | |
383 | } | |
384 | if (r == 0) | |
385 | break; | |
386 | ||
387 | if (streq(field, "Environment")) { | |
388 | if (!env_assignment_is_valid(word)) { | |
389 | log_error("Invalid environment assignment: %s", word); | |
390 | return -EINVAL; | |
391 | } | |
392 | } else { /* PassEnvironment */ | |
393 | if (!env_name_is_valid(word)) { | |
394 | log_error("Invalid environment variable name: %s", word); | |
395 | return -EINVAL; | |
396 | } | |
397 | } | |
398 | ||
399 | r = sd_bus_message_append_basic(m, 's', word); | |
400 | if (r < 0) | |
401 | return bus_log_create_error(r); | |
402 | } | |
403 | ||
404 | r = sd_bus_message_close_container(m); | |
405 | if (r < 0) | |
406 | return bus_log_create_error(r); | |
407 | ||
408 | r = sd_bus_message_close_container(m); | |
409 | ||
410 | } else if (streq(field, "KillSignal")) { | |
411 | int sig; | |
412 | ||
413 | sig = signal_from_string_try_harder(eq); | |
414 | if (sig < 0) { | |
415 | log_error("Failed to parse %s value %s.", field, eq); | |
416 | return -EINVAL; | |
417 | } | |
418 | ||
419 | r = sd_bus_message_append(m, "v", "i", sig); | |
420 | ||
421 | } else if (streq(field, "TimerSlackNSec")) { | |
422 | nsec_t n; | |
423 | ||
424 | r = parse_nsec(eq, &n); | |
425 | if (r < 0) { | |
426 | log_error("Failed to parse %s value %s", field, eq); | |
427 | return -EINVAL; | |
428 | } | |
429 | ||
430 | r = sd_bus_message_append(m, "v", "t", n); | |
431 | } else if (streq(field, "OOMScoreAdjust")) { | |
432 | int oa; | |
433 | ||
434 | r = safe_atoi(eq, &oa); | |
435 | if (r < 0) { | |
436 | log_error("Failed to parse %s value %s", field, eq); | |
437 | return -EINVAL; | |
438 | } | |
439 | ||
440 | if (!oom_score_adjust_is_valid(oa)) { | |
441 | log_error("OOM score adjust value out of range"); | |
442 | return -EINVAL; | |
443 | } | |
444 | ||
445 | r = sd_bus_message_append(m, "v", "i", oa); | |
446 | } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories")) { | |
447 | const char *p; | |
448 | ||
449 | r = sd_bus_message_open_container(m, 'v', "as"); | |
450 | if (r < 0) | |
451 | return bus_log_create_error(r); | |
452 | ||
453 | r = sd_bus_message_open_container(m, 'a', "s"); | |
454 | if (r < 0) | |
455 | return bus_log_create_error(r); | |
456 | ||
457 | p = eq; | |
458 | ||
459 | for (;;) { | |
460 | _cleanup_free_ char *word = NULL; | |
461 | int offset; | |
462 | ||
463 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
464 | if (r < 0) { | |
465 | log_error("Failed to parse %s value %s", field, eq); | |
466 | return -EINVAL; | |
467 | } | |
468 | if (r == 0) | |
469 | break; | |
470 | ||
471 | if (!utf8_is_valid(word)) { | |
472 | log_error("Failed to parse %s value %s", field, eq); | |
473 | return -EINVAL; | |
474 | } | |
475 | ||
476 | offset = word[0] == '-'; | |
477 | if (!path_is_absolute(word + offset)) { | |
478 | log_error("Failed to parse %s value %s", field, eq); | |
479 | return -EINVAL; | |
480 | } | |
481 | ||
482 | path_kill_slashes(word + offset); | |
483 | ||
484 | r = sd_bus_message_append_basic(m, 's', word); | |
485 | if (r < 0) | |
486 | return bus_log_create_error(r); | |
487 | } | |
488 | ||
489 | r = sd_bus_message_close_container(m); | |
490 | if (r < 0) | |
491 | return bus_log_create_error(r); | |
492 | ||
493 | r = sd_bus_message_close_container(m); | |
494 | ||
495 | } else if (streq(field, "RuntimeDirectory")) { | |
496 | const char *p; | |
497 | ||
498 | r = sd_bus_message_open_container(m, 'v', "as"); | |
499 | if (r < 0) | |
500 | return bus_log_create_error(r); | |
501 | ||
502 | r = sd_bus_message_open_container(m, 'a', "s"); | |
503 | if (r < 0) | |
504 | return bus_log_create_error(r); | |
505 | ||
506 | p = eq; | |
507 | ||
508 | for (;;) { | |
509 | _cleanup_free_ char *word = NULL; | |
510 | ||
511 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
512 | if (r < 0) | |
513 | return log_error_errno(r, "Failed to parse %s value %s", field, eq); | |
514 | ||
515 | if (r == 0) | |
516 | break; | |
517 | ||
518 | r = sd_bus_message_append_basic(m, 's', word); | |
519 | if (r < 0) | |
520 | return bus_log_create_error(r); | |
521 | } | |
522 | ||
523 | r = sd_bus_message_close_container(m); | |
524 | if (r < 0) | |
525 | return bus_log_create_error(r); | |
526 | ||
527 | r = sd_bus_message_close_container(m); | |
528 | ||
529 | } else { | |
530 | log_error("Unknown assignment %s.", assignment); | |
531 | return -EINVAL; | |
532 | } | |
533 | ||
534 | finish: | |
535 | if (r < 0) | |
536 | return bus_log_create_error(r); | |
537 | ||
538 | r = sd_bus_message_close_container(m); | |
539 | if (r < 0) | |
540 | return bus_log_create_error(r); | |
541 | ||
542 | return 0; | |
543 | } | |
544 | ||
545 | typedef struct BusWaitForJobs { | |
546 | sd_bus *bus; | |
547 | Set *jobs; | |
548 | ||
549 | char *name; | |
550 | char *result; | |
551 | ||
552 | sd_bus_slot *slot_job_removed; | |
553 | sd_bus_slot *slot_disconnected; | |
554 | } BusWaitForJobs; | |
555 | ||
556 | static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
557 | assert(m); | |
558 | ||
559 | log_error("Warning! D-Bus connection terminated."); | |
560 | sd_bus_close(sd_bus_message_get_bus(m)); | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
565 | static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
566 | const char *path, *unit, *result; | |
567 | BusWaitForJobs *d = userdata; | |
568 | uint32_t id; | |
569 | char *found; | |
570 | int r; | |
571 | ||
572 | assert(m); | |
573 | assert(d); | |
574 | ||
575 | r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); | |
576 | if (r < 0) { | |
577 | bus_log_parse_error(r); | |
578 | return 0; | |
579 | } | |
580 | ||
581 | found = set_remove(d->jobs, (char*) path); | |
582 | if (!found) | |
583 | return 0; | |
584 | ||
585 | free(found); | |
586 | ||
587 | if (!isempty(result)) | |
588 | d->result = strdup(result); | |
589 | ||
590 | if (!isempty(unit)) | |
591 | d->name = strdup(unit); | |
592 | ||
593 | return 0; | |
594 | } | |
595 | ||
596 | void bus_wait_for_jobs_free(BusWaitForJobs *d) { | |
597 | if (!d) | |
598 | return; | |
599 | ||
600 | set_free_free(d->jobs); | |
601 | ||
602 | sd_bus_slot_unref(d->slot_disconnected); | |
603 | sd_bus_slot_unref(d->slot_job_removed); | |
604 | ||
605 | sd_bus_unref(d->bus); | |
606 | ||
607 | free(d->name); | |
608 | free(d->result); | |
609 | ||
610 | free(d); | |
611 | } | |
612 | ||
613 | int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { | |
614 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; | |
615 | int r; | |
616 | ||
617 | assert(bus); | |
618 | assert(ret); | |
619 | ||
620 | d = new0(BusWaitForJobs, 1); | |
621 | if (!d) | |
622 | return -ENOMEM; | |
623 | ||
624 | d->bus = sd_bus_ref(bus); | |
625 | ||
626 | /* When we are a bus client we match by sender. Direct | |
627 | * connections OTOH have no initialized sender field, and | |
628 | * hence we ignore the sender then */ | |
629 | r = sd_bus_add_match( | |
630 | bus, | |
631 | &d->slot_job_removed, | |
632 | bus->bus_client ? | |
633 | "type='signal'," | |
634 | "sender='org.freedesktop.systemd1'," | |
635 | "interface='org.freedesktop.systemd1.Manager'," | |
636 | "member='JobRemoved'," | |
637 | "path='/org/freedesktop/systemd1'" : | |
638 | "type='signal'," | |
639 | "interface='org.freedesktop.systemd1.Manager'," | |
640 | "member='JobRemoved'," | |
641 | "path='/org/freedesktop/systemd1'", | |
642 | match_job_removed, d); | |
643 | if (r < 0) | |
644 | return r; | |
645 | ||
646 | r = sd_bus_add_match( | |
647 | bus, | |
648 | &d->slot_disconnected, | |
649 | "type='signal'," | |
650 | "sender='org.freedesktop.DBus.Local'," | |
651 | "interface='org.freedesktop.DBus.Local'," | |
652 | "member='Disconnected'", | |
653 | match_disconnected, d); | |
654 | if (r < 0) | |
655 | return r; | |
656 | ||
657 | *ret = d; | |
658 | d = NULL; | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
663 | static int bus_process_wait(sd_bus *bus) { | |
664 | int r; | |
665 | ||
666 | for (;;) { | |
667 | r = sd_bus_process(bus, NULL); | |
668 | if (r < 0) | |
669 | return r; | |
670 | if (r > 0) | |
671 | return 0; | |
672 | ||
673 | r = sd_bus_wait(bus, (uint64_t) -1); | |
674 | if (r < 0) | |
675 | return r; | |
676 | } | |
677 | } | |
678 | ||
679 | static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { | |
680 | _cleanup_free_ char *dbus_path = NULL; | |
681 | ||
682 | assert(d); | |
683 | assert(d->name); | |
684 | assert(result); | |
685 | ||
686 | dbus_path = unit_dbus_path_from_name(d->name); | |
687 | if (!dbus_path) | |
688 | return -ENOMEM; | |
689 | ||
690 | return sd_bus_get_property_string(d->bus, | |
691 | "org.freedesktop.systemd1", | |
692 | dbus_path, | |
693 | "org.freedesktop.systemd1.Service", | |
694 | "Result", | |
695 | NULL, | |
696 | result); | |
697 | } | |
698 | ||
699 | static const struct { | |
700 | const char *result, *explanation; | |
701 | } explanations [] = { | |
0b2de9d9 | 702 | { "resources", "of unavailable resources or another system error" }, |
20b16441 LP |
703 | { "timeout", "a timeout was exceeded" }, |
704 | { "exit-code", "the control process exited with error code" }, | |
705 | { "signal", "a fatal signal was delivered to the control process" }, | |
706 | { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, | |
707 | { "watchdog", "the service failed to send watchdog ping" }, | |
708 | { "start-limit", "start of the service was attempted too often" } | |
709 | }; | |
710 | ||
711 | static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) { | |
712 | _cleanup_free_ char *service_shell_quoted = NULL; | |
713 | const char *systemctl = "systemctl", *journalctl = "journalctl"; | |
714 | ||
715 | assert(service); | |
716 | ||
717 | service_shell_quoted = shell_maybe_quote(service); | |
718 | ||
719 | if (extra_args && extra_args[1]) { | |
720 | _cleanup_free_ char *t; | |
721 | ||
722 | t = strv_join((char**) extra_args, " "); | |
723 | systemctl = strjoina("systemctl ", t ? : "<args>"); | |
724 | journalctl = strjoina("journalctl ", t ? : "<args>"); | |
725 | } | |
726 | ||
727 | if (!isempty(result)) { | |
728 | unsigned i; | |
729 | ||
730 | for (i = 0; i < ELEMENTSOF(explanations); ++i) | |
731 | if (streq(result, explanations[i].result)) | |
732 | break; | |
733 | ||
734 | if (i < ELEMENTSOF(explanations)) { | |
735 | log_error("Job for %s failed because %s.\n" | |
736 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
737 | service, | |
738 | explanations[i].explanation, | |
739 | systemctl, | |
740 | service_shell_quoted ?: "<service>", | |
741 | journalctl); | |
742 | goto finish; | |
743 | } | |
744 | } | |
745 | ||
746 | log_error("Job for %s failed.\n" | |
747 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
748 | service, | |
749 | systemctl, | |
750 | service_shell_quoted ?: "<service>", | |
751 | journalctl); | |
752 | ||
753 | finish: | |
754 | /* For some results maybe additional explanation is required */ | |
755 | if (streq_ptr(result, "start-limit")) | |
756 | log_info("To force a start use \"%1$s reset-failed %2$s\"\n" | |
757 | "followed by \"%1$s start %2$s\" again.", | |
758 | systemctl, | |
759 | service_shell_quoted ?: "<service>"); | |
760 | } | |
761 | ||
762 | static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
763 | int r = 0; | |
764 | ||
765 | assert(d->result); | |
766 | ||
767 | if (!quiet) { | |
768 | if (streq(d->result, "canceled")) | |
769 | log_error("Job for %s canceled.", strna(d->name)); | |
770 | else if (streq(d->result, "timeout")) | |
771 | log_error("Job for %s timed out.", strna(d->name)); | |
772 | else if (streq(d->result, "dependency")) | |
773 | log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); | |
774 | else if (streq(d->result, "invalid")) | |
775 | log_error("%s is not active, cannot reload.", strna(d->name)); | |
776 | else if (streq(d->result, "assert")) | |
777 | log_error("Assertion failed on job for %s.", strna(d->name)); | |
778 | else if (streq(d->result, "unsupported")) | |
779 | log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); | |
780 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { | |
781 | if (d->name) { | |
782 | int q; | |
783 | _cleanup_free_ char *result = NULL; | |
784 | ||
785 | q = bus_job_get_service_result(d, &result); | |
786 | if (q < 0) | |
787 | log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); | |
788 | ||
789 | log_job_error_with_service_result(d->name, result, extra_args); | |
790 | } else | |
791 | log_error("Job failed. See \"journalctl -xe\" for details."); | |
792 | } | |
793 | } | |
794 | ||
795 | if (streq(d->result, "canceled")) | |
796 | r = -ECANCELED; | |
797 | else if (streq(d->result, "timeout")) | |
798 | r = -ETIME; | |
799 | else if (streq(d->result, "dependency")) | |
800 | r = -EIO; | |
801 | else if (streq(d->result, "invalid")) | |
802 | r = -ENOEXEC; | |
803 | else if (streq(d->result, "assert")) | |
804 | r = -EPROTO; | |
805 | else if (streq(d->result, "unsupported")) | |
806 | r = -EOPNOTSUPP; | |
807 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) | |
808 | r = -EIO; | |
809 | ||
810 | return r; | |
811 | } | |
812 | ||
813 | int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
814 | int r = 0; | |
815 | ||
816 | assert(d); | |
817 | ||
818 | while (!set_isempty(d->jobs)) { | |
819 | int q; | |
820 | ||
821 | q = bus_process_wait(d->bus); | |
822 | if (q < 0) | |
823 | return log_error_errno(q, "Failed to wait for response: %m"); | |
824 | ||
825 | if (d->result) { | |
826 | q = check_wait_response(d, quiet, extra_args); | |
827 | /* Return the first error as it is most likely to be | |
828 | * meaningful. */ | |
829 | if (q < 0 && r == 0) | |
830 | r = q; | |
831 | ||
832 | log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); | |
833 | } | |
834 | ||
835 | d->name = mfree(d->name); | |
836 | d->result = mfree(d->result); | |
837 | } | |
838 | ||
839 | return r; | |
840 | } | |
841 | ||
842 | int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { | |
843 | int r; | |
844 | ||
845 | assert(d); | |
846 | ||
847 | r = set_ensure_allocated(&d->jobs, &string_hash_ops); | |
848 | if (r < 0) | |
849 | return r; | |
850 | ||
851 | return set_put_strdup(d->jobs, path); | |
852 | } | |
853 | ||
854 | int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { | |
855 | int r; | |
856 | ||
857 | r = bus_wait_for_jobs_add(d, path); | |
858 | if (r < 0) | |
859 | return log_oom(); | |
860 | ||
861 | return bus_wait_for_jobs(d, quiet, NULL); | |
862 | } | |
863 | ||
864 | int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { | |
865 | const char *type, *path, *source; | |
866 | int r; | |
867 | ||
acc0269c CH |
868 | /* changes is dereferenced when calling unit_file_dump_changes() later, |
869 | * so we have to make sure this is not NULL. */ | |
870 | assert(changes); | |
871 | assert(n_changes); | |
872 | ||
20b16441 LP |
873 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); |
874 | if (r < 0) | |
875 | return bus_log_parse_error(r); | |
876 | ||
877 | while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { | |
878 | /* We expect only "success" changes to be sent over the bus. | |
879 | Hence, reject anything negative. */ | |
880 | UnitFileChangeType ch = unit_file_change_type_from_string(type); | |
881 | ||
882 | if (ch < 0) { | |
883 | log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path); | |
884 | continue; | |
885 | } | |
886 | ||
887 | r = unit_file_changes_add(changes, n_changes, ch, path, source); | |
888 | if (r < 0) | |
889 | return r; | |
890 | } | |
891 | if (r < 0) | |
892 | return bus_log_parse_error(r); | |
893 | ||
894 | r = sd_bus_message_exit_container(m); | |
895 | if (r < 0) | |
896 | return bus_log_parse_error(r); | |
897 | ||
898 | unit_file_dump_changes(0, NULL, *changes, *n_changes, false); | |
899 | return 0; | |
900 | } | |
901 | ||
291d565a LP |
902 | struct CGroupInfo { |
903 | char *cgroup_path; | |
904 | bool is_const; /* If false, cgroup_path should be free()'d */ | |
905 | ||
906 | Hashmap *pids; /* PID → process name */ | |
907 | bool done; | |
908 | ||
909 | struct CGroupInfo *parent; | |
910 | LIST_FIELDS(struct CGroupInfo, siblings); | |
911 | LIST_HEAD(struct CGroupInfo, children); | |
912 | size_t n_children; | |
913 | }; | |
914 | ||
915 | static bool IS_ROOT(const char *p) { | |
916 | return isempty(p) || streq(p, "/"); | |
917 | } | |
918 | ||
919 | static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) { | |
920 | struct CGroupInfo *parent = NULL, *cg; | |
921 | int r; | |
922 | ||
923 | assert(cgroups); | |
924 | assert(ret); | |
925 | ||
926 | if (IS_ROOT(path)) | |
927 | path = "/"; | |
928 | ||
929 | cg = hashmap_get(cgroups, path); | |
930 | if (cg) { | |
931 | *ret = cg; | |
932 | return 0; | |
933 | } | |
934 | ||
935 | if (!IS_ROOT(path)) { | |
936 | const char *e, *pp; | |
937 | ||
938 | e = strrchr(path, '/'); | |
939 | if (!e) | |
940 | return -EINVAL; | |
941 | ||
942 | pp = strndupa(path, e - path); | |
943 | if (!pp) | |
944 | return -ENOMEM; | |
945 | ||
946 | r = add_cgroup(cgroups, pp, false, &parent); | |
947 | if (r < 0) | |
948 | return r; | |
949 | } | |
950 | ||
951 | cg = new0(struct CGroupInfo, 1); | |
952 | if (!cg) | |
953 | return -ENOMEM; | |
954 | ||
955 | if (is_const) | |
956 | cg->cgroup_path = (char*) path; | |
957 | else { | |
958 | cg->cgroup_path = strdup(path); | |
959 | if (!cg->cgroup_path) { | |
960 | free(cg); | |
961 | return -ENOMEM; | |
962 | } | |
963 | } | |
964 | ||
965 | cg->is_const = is_const; | |
966 | cg->parent = parent; | |
967 | ||
968 | r = hashmap_put(cgroups, cg->cgroup_path, cg); | |
969 | if (r < 0) { | |
970 | if (!is_const) | |
971 | free(cg->cgroup_path); | |
972 | free(cg); | |
973 | return r; | |
974 | } | |
975 | ||
976 | if (parent) { | |
977 | LIST_PREPEND(siblings, parent->children, cg); | |
978 | parent->n_children++; | |
979 | } | |
980 | ||
981 | *ret = cg; | |
982 | return 1; | |
983 | } | |
984 | ||
985 | static int add_process( | |
986 | Hashmap *cgroups, | |
987 | const char *path, | |
988 | pid_t pid, | |
989 | const char *name) { | |
990 | ||
991 | struct CGroupInfo *cg; | |
992 | int r; | |
993 | ||
994 | assert(cgroups); | |
995 | assert(name); | |
996 | assert(pid > 0); | |
997 | ||
998 | r = add_cgroup(cgroups, path, true, &cg); | |
999 | if (r < 0) | |
1000 | return r; | |
1001 | ||
1002 | r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops); | |
1003 | if (r < 0) | |
1004 | return r; | |
1005 | ||
1006 | return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name); | |
1007 | } | |
1008 | ||
1009 | static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) { | |
1010 | assert(cgroups); | |
1011 | assert(cg); | |
1012 | ||
1013 | while (cg->children) | |
1014 | remove_cgroup(cgroups, cg->children); | |
1015 | ||
1016 | hashmap_remove(cgroups, cg->cgroup_path); | |
1017 | ||
1018 | if (!cg->is_const) | |
1019 | free(cg->cgroup_path); | |
1020 | ||
1021 | hashmap_free(cg->pids); | |
1022 | ||
1023 | if (cg->parent) | |
1024 | LIST_REMOVE(siblings, cg->parent->children, cg); | |
1025 | ||
1026 | free(cg); | |
1027 | } | |
1028 | ||
1029 | static int cgroup_info_compare_func(const void *a, const void *b) { | |
1030 | const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b; | |
1031 | ||
1032 | assert(x); | |
1033 | assert(y); | |
1034 | ||
1035 | return strcmp(x->cgroup_path, y->cgroup_path); | |
1036 | } | |
1037 | ||
1038 | static int dump_processes( | |
1039 | Hashmap *cgroups, | |
1040 | const char *cgroup_path, | |
1041 | const char *prefix, | |
1042 | unsigned n_columns, | |
1043 | OutputFlags flags) { | |
1044 | ||
1045 | struct CGroupInfo *cg; | |
1046 | int r; | |
1047 | ||
1048 | assert(prefix); | |
1049 | ||
1050 | if (IS_ROOT(cgroup_path)) | |
1051 | cgroup_path = "/"; | |
1052 | ||
1053 | cg = hashmap_get(cgroups, cgroup_path); | |
1054 | if (!cg) | |
1055 | return 0; | |
1056 | ||
1057 | if (!hashmap_isempty(cg->pids)) { | |
1058 | const char *name; | |
1059 | size_t n = 0, i; | |
1060 | pid_t *pids; | |
1061 | void *pidp; | |
1062 | Iterator j; | |
1063 | int width; | |
1064 | ||
1065 | /* Order processes by their PID */ | |
1066 | pids = newa(pid_t, hashmap_size(cg->pids)); | |
1067 | ||
1068 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) | |
1069 | pids[n++] = PTR_TO_PID(pidp); | |
1070 | ||
1071 | assert(n == hashmap_size(cg->pids)); | |
1072 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1073 | ||
1074 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1075 | ||
1076 | for (i = 0; i < n; i++) { | |
1077 | _cleanup_free_ char *e = NULL; | |
1078 | const char *special; | |
1079 | bool more; | |
1080 | ||
1081 | name = hashmap_get(cg->pids, PID_TO_PTR(pids[i])); | |
1082 | assert(name); | |
1083 | ||
1084 | if (n_columns != 0) { | |
1085 | unsigned k; | |
1086 | ||
1087 | k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1088 | ||
1089 | e = ellipsize(name, k, 100); | |
1090 | if (e) | |
1091 | name = e; | |
1092 | } | |
1093 | ||
1094 | more = i+1 < n || cg->children; | |
323b7dc9 | 1095 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1096 | |
1097 | fprintf(stdout, "%s%s%*"PID_PRI" %s\n", | |
1098 | prefix, | |
1099 | special, | |
1100 | width, pids[i], | |
1101 | name); | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | if (cg->children) { | |
1106 | struct CGroupInfo **children, *child; | |
1107 | size_t n = 0, i; | |
1108 | ||
1109 | /* Order subcgroups by their name */ | |
1110 | children = newa(struct CGroupInfo*, cg->n_children); | |
1111 | LIST_FOREACH(siblings, child, cg->children) | |
1112 | children[n++] = child; | |
1113 | assert(n == cg->n_children); | |
1114 | qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func); | |
1115 | ||
1116 | n_columns = MAX(LESS_BY(n_columns, 2U), 20U); | |
1117 | ||
1118 | for (i = 0; i < n; i++) { | |
1119 | _cleanup_free_ char *pp = NULL; | |
1120 | const char *name, *special; | |
1121 | bool more; | |
1122 | ||
1123 | child = children[i]; | |
1124 | ||
1125 | name = strrchr(child->cgroup_path, '/'); | |
1126 | if (!name) | |
1127 | return -EINVAL; | |
1128 | name++; | |
1129 | ||
1130 | more = i+1 < n; | |
323b7dc9 | 1131 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1132 | |
1133 | fputs(prefix, stdout); | |
1134 | fputs(special, stdout); | |
1135 | fputs(name, stdout); | |
1136 | fputc('\n', stdout); | |
1137 | ||
323b7dc9 | 1138 | special = special_glyph(more ? TREE_VERTICAL : TREE_SPACE); |
291d565a LP |
1139 | |
1140 | pp = strappend(prefix, special); | |
1141 | if (!pp) | |
1142 | return -ENOMEM; | |
1143 | ||
1144 | r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags); | |
1145 | if (r < 0) | |
1146 | return r; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | cg->done = true; | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | static int dump_extra_processes( | |
1155 | Hashmap *cgroups, | |
1156 | const char *prefix, | |
1157 | unsigned n_columns, | |
1158 | OutputFlags flags) { | |
1159 | ||
1160 | _cleanup_free_ pid_t *pids = NULL; | |
1161 | _cleanup_hashmap_free_ Hashmap *names = NULL; | |
1162 | struct CGroupInfo *cg; | |
1163 | size_t n_allocated = 0, n = 0, k; | |
1164 | Iterator i; | |
1165 | int width, r; | |
1166 | ||
1167 | /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as | |
1168 | * combined, sorted, linear list. */ | |
1169 | ||
1170 | HASHMAP_FOREACH(cg, cgroups, i) { | |
1171 | const char *name; | |
1172 | void *pidp; | |
1173 | Iterator j; | |
1174 | ||
1175 | if (cg->done) | |
1176 | continue; | |
1177 | ||
1178 | if (hashmap_isempty(cg->pids)) | |
1179 | continue; | |
1180 | ||
1181 | r = hashmap_ensure_allocated(&names, &trivial_hash_ops); | |
1182 | if (r < 0) | |
1183 | return r; | |
1184 | ||
1185 | if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids))) | |
1186 | return -ENOMEM; | |
1187 | ||
1188 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) { | |
1189 | pids[n++] = PTR_TO_PID(pidp); | |
1190 | ||
1191 | r = hashmap_put(names, pidp, (void*) name); | |
1192 | if (r < 0) | |
1193 | return r; | |
1194 | } | |
1195 | } | |
1196 | ||
1197 | if (n == 0) | |
1198 | return 0; | |
1199 | ||
1200 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1201 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1202 | ||
1203 | for (k = 0; k < n; k++) { | |
1204 | _cleanup_free_ char *e = NULL; | |
1205 | const char *name; | |
1206 | ||
1207 | name = hashmap_get(names, PID_TO_PTR(pids[k])); | |
1208 | assert(name); | |
1209 | ||
1210 | if (n_columns != 0) { | |
1211 | unsigned z; | |
1212 | ||
1213 | z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1214 | ||
1215 | e = ellipsize(name, z, 100); | |
1216 | if (e) | |
1217 | name = e; | |
1218 | } | |
1219 | ||
1220 | fprintf(stdout, "%s%s %*" PID_PRI " %s\n", | |
1221 | prefix, | |
323b7dc9 | 1222 | special_glyph(TRIANGULAR_BULLET), |
291d565a LP |
1223 | width, pids[k], |
1224 | name); | |
1225 | } | |
1226 | ||
1227 | return 0; | |
1228 | } | |
1229 | ||
1230 | int unit_show_processes( | |
1231 | sd_bus *bus, | |
1232 | const char *unit, | |
1233 | const char *cgroup_path, | |
1234 | const char *prefix, | |
1235 | unsigned n_columns, | |
1236 | OutputFlags flags, | |
1237 | sd_bus_error *error) { | |
1238 | ||
1239 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1240 | Hashmap *cgroups = NULL; | |
1241 | struct CGroupInfo *cg; | |
1242 | int r; | |
1243 | ||
1244 | assert(bus); | |
1245 | assert(unit); | |
1246 | ||
1247 | if (flags & OUTPUT_FULL_WIDTH) | |
1248 | n_columns = 0; | |
1249 | else if (n_columns <= 0) | |
1250 | n_columns = columns(); | |
1251 | ||
1252 | prefix = strempty(prefix); | |
1253 | ||
1254 | r = sd_bus_call_method( | |
1255 | bus, | |
1256 | "org.freedesktop.systemd1", | |
1257 | "/org/freedesktop/systemd1", | |
1258 | "org.freedesktop.systemd1.Manager", | |
1259 | "GetUnitProcesses", | |
1260 | error, | |
1261 | &reply, | |
1262 | "s", | |
1263 | unit); | |
1264 | if (r < 0) | |
1265 | return r; | |
1266 | ||
1267 | cgroups = hashmap_new(&string_hash_ops); | |
1268 | if (!cgroups) | |
1269 | return -ENOMEM; | |
1270 | ||
1271 | r = sd_bus_message_enter_container(reply, 'a', "(sus)"); | |
1272 | if (r < 0) | |
1273 | goto finish; | |
1274 | ||
1275 | for (;;) { | |
1276 | const char *path = NULL, *name = NULL; | |
1277 | uint32_t pid; | |
1278 | ||
1279 | r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name); | |
1280 | if (r < 0) | |
1281 | goto finish; | |
1282 | if (r == 0) | |
1283 | break; | |
1284 | ||
1285 | r = add_process(cgroups, path, pid, name); | |
1286 | if (r < 0) | |
1287 | goto finish; | |
1288 | } | |
1289 | ||
1290 | r = sd_bus_message_exit_container(reply); | |
1291 | if (r < 0) | |
1292 | goto finish; | |
1293 | ||
1294 | r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags); | |
1295 | if (r < 0) | |
1296 | goto finish; | |
1297 | ||
1298 | r = dump_extra_processes(cgroups, prefix, n_columns, flags); | |
1299 | ||
1300 | finish: | |
1301 | while ((cg = hashmap_first(cgroups))) | |
1302 | remove_cgroup(cgroups, cg); | |
1303 | ||
1304 | hashmap_free(cgroups); | |
1305 | ||
1306 | return r; | |
1307 | } |