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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); | |
9184ca48 LP |
86 | else { |
87 | r = parse_percent(eq); | |
88 | if (r <= 0) { | |
89 | log_error_errno(r, "CPU quota '%s' invalid.", eq); | |
20b16441 LP |
90 | return -EINVAL; |
91 | } | |
92 | ||
9184ca48 | 93 | r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) r * USEC_PER_SEC / 100U); |
20b16441 LP |
94 | } |
95 | ||
96 | goto finish; | |
97 | ||
98 | } else if (streq(field, "EnvironmentFile")) { | |
99 | ||
100 | r = sd_bus_message_append(m, "sv", "EnvironmentFiles", "a(sb)", 1, | |
101 | eq[0] == '-' ? eq + 1 : eq, | |
102 | eq[0] == '-'); | |
103 | goto finish; | |
104 | ||
105 | } else if (STR_IN_SET(field, "AccuracySec", "RandomizedDelaySec", "RuntimeMaxSec")) { | |
106 | char *n; | |
107 | usec_t t; | |
108 | size_t l; | |
9184ca48 | 109 | |
20b16441 LP |
110 | r = parse_sec(eq, &t); |
111 | if (r < 0) | |
112 | return log_error_errno(r, "Failed to parse %s= parameter: %s", field, eq); | |
113 | ||
114 | l = strlen(field); | |
115 | n = newa(char, l + 2); | |
116 | if (!n) | |
117 | return log_oom(); | |
118 | ||
119 | /* Change suffix Sec → USec */ | |
120 | strcpy(mempcpy(n, field, l - 3), "USec"); | |
121 | r = sd_bus_message_append(m, "sv", n, "t", t); | |
122 | goto finish; | |
d58d600e LP |
123 | |
124 | } else if (STR_IN_SET(field, "MemoryLow", "MemoryHigh", "MemoryMax", "MemoryLimit")) { | |
125 | uint64_t bytes; | |
126 | ||
127 | if (isempty(eq) || streq(eq, "infinity")) | |
128 | bytes = CGROUP_LIMIT_MAX; | |
129 | else { | |
130 | r = parse_percent(eq); | |
131 | if (r >= 0) { | |
132 | char *n; | |
133 | ||
134 | /* When this is a percentage we'll convert this into a relative value in the range | |
135 | * 0…UINT32_MAX and pass it in the MemoryLowByPhysicalMemory property (and related | |
136 | * ones). This way the physical memory size can be determined server-side */ | |
137 | ||
138 | n = strjoina(field, "ByPhysicalMemory"); | |
139 | r = sd_bus_message_append(m, "sv", n, "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U)); | |
140 | goto finish; | |
141 | ||
142 | } else { | |
143 | r = parse_size(eq, 1024, &bytes); | |
144 | if (r < 0) | |
145 | return log_error_errno(r, "Failed to parse bytes specification %s", assignment); | |
146 | } | |
147 | } | |
148 | ||
149 | r = sd_bus_message_append(m, "sv", field, "t", bytes); | |
150 | goto finish; | |
20b16441 LP |
151 | } |
152 | ||
153 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); | |
154 | if (r < 0) | |
155 | return bus_log_create_error(r); | |
156 | ||
157 | rl = rlimit_from_string(field); | |
158 | if (rl >= 0) { | |
159 | const char *sn; | |
160 | struct rlimit l; | |
161 | ||
162 | r = rlimit_parse(rl, eq, &l); | |
163 | if (r < 0) | |
164 | return log_error_errno(r, "Failed to parse resource limit: %s", eq); | |
165 | ||
166 | r = sd_bus_message_append(m, "v", "t", l.rlim_max); | |
167 | if (r < 0) | |
168 | return bus_log_create_error(r); | |
169 | ||
170 | r = sd_bus_message_close_container(m); | |
171 | if (r < 0) | |
172 | return bus_log_create_error(r); | |
173 | ||
174 | r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); | |
175 | if (r < 0) | |
176 | return bus_log_create_error(r); | |
177 | ||
178 | sn = strjoina(field, "Soft"); | |
179 | r = sd_bus_message_append(m, "sv", sn, "t", l.rlim_cur); | |
180 | ||
181 | } else if (STR_IN_SET(field, | |
13c31542 | 182 | "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", "TasksAccounting", |
20b16441 LP |
183 | "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies", |
184 | "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit", | |
185 | "PrivateTmp", "PrivateDevices", "PrivateNetwork", "NoNewPrivileges", | |
f3e43635 | 186 | "SyslogLevelPrefix", "Delegate", "RemainAfterElapse", "MemoryDenyWriteExecute")) { |
20b16441 LP |
187 | |
188 | r = parse_boolean(eq); | |
189 | if (r < 0) | |
190 | return log_error_errno(r, "Failed to parse boolean assignment %s.", assignment); | |
191 | ||
192 | r = sd_bus_message_append(m, "v", "b", r); | |
193 | ||
20b16441 LP |
194 | } else if (streq(field, "TasksMax")) { |
195 | uint64_t n; | |
196 | ||
197 | if (isempty(eq) || streq(eq, "infinity")) | |
198 | n = (uint64_t) -1; | |
199 | else { | |
200 | r = safe_atou64(eq, &n); | |
201 | if (r < 0) { | |
202 | log_error("Failed to parse maximum tasks specification %s", assignment); | |
203 | return -EINVAL; | |
204 | } | |
205 | } | |
206 | ||
207 | r = sd_bus_message_append(m, "v", "t", n); | |
208 | ||
209 | } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) { | |
210 | uint64_t u; | |
211 | ||
212 | r = cg_cpu_shares_parse(eq, &u); | |
213 | if (r < 0) { | |
214 | log_error("Failed to parse %s value %s.", field, eq); | |
215 | return -EINVAL; | |
216 | } | |
217 | ||
218 | r = sd_bus_message_append(m, "v", "t", u); | |
219 | ||
13c31542 TH |
220 | } else if (STR_IN_SET(field, "IOWeight", "StartupIOWeight")) { |
221 | uint64_t u; | |
222 | ||
223 | r = cg_weight_parse(eq, &u); | |
224 | if (r < 0) { | |
225 | log_error("Failed to parse %s value %s.", field, eq); | |
226 | return -EINVAL; | |
227 | } | |
228 | ||
229 | r = sd_bus_message_append(m, "v", "t", u); | |
230 | ||
20b16441 LP |
231 | } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { |
232 | uint64_t u; | |
233 | ||
3fdf9ad7 | 234 | r = cg_blkio_weight_parse(eq, &u); |
20b16441 LP |
235 | if (r < 0) { |
236 | log_error("Failed to parse %s value %s.", field, eq); | |
237 | return -EINVAL; | |
238 | } | |
239 | ||
240 | r = sd_bus_message_append(m, "v", "t", u); | |
241 | ||
242 | } else if (STR_IN_SET(field, | |
243 | "User", "Group", "DevicePolicy", "KillMode", | |
244 | "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", | |
245 | "StandardInput", "StandardOutput", "StandardError", | |
246 | "Description", "Slice", "Type", "WorkingDirectory", | |
247 | "RootDirectory", "SyslogIdentifier", "ProtectSystem", | |
186ad4b1 | 248 | "ProtectHome", "SELinuxContext")) |
20b16441 LP |
249 | r = sd_bus_message_append(m, "v", "s", eq); |
250 | ||
251 | else if (streq(field, "SyslogLevel")) { | |
252 | int level; | |
253 | ||
254 | level = log_level_from_string(eq); | |
255 | if (level < 0) { | |
256 | log_error("Failed to parse %s value %s.", field, eq); | |
257 | return -EINVAL; | |
258 | } | |
259 | ||
260 | r = sd_bus_message_append(m, "v", "i", level); | |
261 | ||
262 | } else if (streq(field, "SyslogFacility")) { | |
263 | int facility; | |
264 | ||
265 | facility = log_facility_unshifted_from_string(eq); | |
266 | if (facility < 0) { | |
267 | log_error("Failed to parse %s value %s.", field, eq); | |
268 | return -EINVAL; | |
269 | } | |
270 | ||
271 | r = sd_bus_message_append(m, "v", "i", facility); | |
272 | ||
273 | } else if (streq(field, "DeviceAllow")) { | |
274 | ||
275 | if (isempty(eq)) | |
276 | r = sd_bus_message_append(m, "v", "a(ss)", 0); | |
277 | else { | |
278 | const char *path, *rwm, *e; | |
279 | ||
280 | e = strchr(eq, ' '); | |
281 | if (e) { | |
282 | path = strndupa(eq, e - eq); | |
283 | rwm = e+1; | |
284 | } else { | |
285 | path = eq; | |
286 | rwm = ""; | |
287 | } | |
288 | ||
289 | if (!path_startswith(path, "/dev")) { | |
290 | log_error("%s is not a device file in /dev.", path); | |
291 | return -EINVAL; | |
292 | } | |
293 | ||
294 | r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); | |
295 | } | |
296 | ||
9be57249 | 297 | } else if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { |
20b16441 LP |
298 | |
299 | if (isempty(eq)) | |
300 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
301 | else { | |
302 | const char *path, *bandwidth, *e; | |
303 | uint64_t bytes; | |
304 | ||
305 | e = strchr(eq, ' '); | |
306 | if (e) { | |
307 | path = strndupa(eq, e - eq); | |
308 | bandwidth = e+1; | |
309 | } else { | |
310 | log_error("Failed to parse %s value %s.", field, eq); | |
311 | return -EINVAL; | |
312 | } | |
313 | ||
314 | if (!path_startswith(path, "/dev")) { | |
315 | log_error("%s is not a device file in /dev.", path); | |
316 | return -EINVAL; | |
317 | } | |
318 | ||
e57c9ce1 | 319 | if (streq(bandwidth, "infinity")) { |
13c31542 TH |
320 | bytes = CGROUP_LIMIT_MAX; |
321 | } else { | |
322 | r = parse_size(bandwidth, 1000, &bytes); | |
323 | if (r < 0) { | |
324 | log_error("Failed to parse byte value %s.", bandwidth); | |
325 | return -EINVAL; | |
326 | } | |
20b16441 LP |
327 | } |
328 | ||
329 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); | |
330 | } | |
331 | ||
13c31542 | 332 | } else if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) { |
20b16441 LP |
333 | |
334 | if (isempty(eq)) | |
335 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
336 | else { | |
337 | const char *path, *weight, *e; | |
338 | uint64_t u; | |
339 | ||
340 | e = strchr(eq, ' '); | |
341 | if (e) { | |
342 | path = strndupa(eq, e - eq); | |
343 | weight = e+1; | |
344 | } else { | |
345 | log_error("Failed to parse %s value %s.", field, eq); | |
346 | return -EINVAL; | |
347 | } | |
348 | ||
349 | if (!path_startswith(path, "/dev")) { | |
350 | log_error("%s is not a device file in /dev.", path); | |
351 | return -EINVAL; | |
352 | } | |
353 | ||
354 | r = safe_atou64(weight, &u); | |
355 | if (r < 0) { | |
356 | log_error("Failed to parse %s value %s.", field, weight); | |
357 | return -EINVAL; | |
358 | } | |
096a4d53 | 359 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, u); |
20b16441 LP |
360 | } |
361 | ||
362 | } else if (streq(field, "Nice")) { | |
363 | int32_t i; | |
364 | ||
365 | r = safe_atoi32(eq, &i); | |
366 | if (r < 0) { | |
367 | log_error("Failed to parse %s value %s.", field, eq); | |
368 | return -EINVAL; | |
369 | } | |
370 | ||
371 | r = sd_bus_message_append(m, "v", "i", i); | |
372 | ||
373 | } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) { | |
374 | const char *p; | |
375 | ||
376 | r = sd_bus_message_open_container(m, 'v', "as"); | |
377 | if (r < 0) | |
378 | return bus_log_create_error(r); | |
379 | ||
380 | r = sd_bus_message_open_container(m, 'a', "s"); | |
381 | if (r < 0) | |
382 | return bus_log_create_error(r); | |
383 | ||
384 | p = eq; | |
385 | ||
386 | for (;;) { | |
387 | _cleanup_free_ char *word = NULL; | |
388 | ||
389 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); | |
390 | if (r < 0) { | |
391 | log_error("Failed to parse Environment value %s", eq); | |
392 | return -EINVAL; | |
393 | } | |
394 | if (r == 0) | |
395 | break; | |
396 | ||
397 | if (streq(field, "Environment")) { | |
398 | if (!env_assignment_is_valid(word)) { | |
399 | log_error("Invalid environment assignment: %s", word); | |
400 | return -EINVAL; | |
401 | } | |
402 | } else { /* PassEnvironment */ | |
403 | if (!env_name_is_valid(word)) { | |
404 | log_error("Invalid environment variable name: %s", word); | |
405 | return -EINVAL; | |
406 | } | |
407 | } | |
408 | ||
409 | r = sd_bus_message_append_basic(m, 's', word); | |
410 | if (r < 0) | |
411 | return bus_log_create_error(r); | |
412 | } | |
413 | ||
414 | r = sd_bus_message_close_container(m); | |
415 | if (r < 0) | |
416 | return bus_log_create_error(r); | |
417 | ||
418 | r = sd_bus_message_close_container(m); | |
419 | ||
420 | } else if (streq(field, "KillSignal")) { | |
421 | int sig; | |
422 | ||
423 | sig = signal_from_string_try_harder(eq); | |
424 | if (sig < 0) { | |
425 | log_error("Failed to parse %s value %s.", field, eq); | |
426 | return -EINVAL; | |
427 | } | |
428 | ||
429 | r = sd_bus_message_append(m, "v", "i", sig); | |
430 | ||
431 | } else if (streq(field, "TimerSlackNSec")) { | |
432 | nsec_t n; | |
433 | ||
434 | r = parse_nsec(eq, &n); | |
435 | if (r < 0) { | |
436 | log_error("Failed to parse %s value %s", field, eq); | |
437 | return -EINVAL; | |
438 | } | |
439 | ||
440 | r = sd_bus_message_append(m, "v", "t", n); | |
441 | } else if (streq(field, "OOMScoreAdjust")) { | |
442 | int oa; | |
443 | ||
444 | r = safe_atoi(eq, &oa); | |
445 | if (r < 0) { | |
446 | log_error("Failed to parse %s value %s", field, eq); | |
447 | return -EINVAL; | |
448 | } | |
449 | ||
450 | if (!oom_score_adjust_is_valid(oa)) { | |
451 | log_error("OOM score adjust value out of range"); | |
452 | return -EINVAL; | |
453 | } | |
454 | ||
455 | r = sd_bus_message_append(m, "v", "i", oa); | |
456 | } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories")) { | |
457 | const char *p; | |
458 | ||
459 | r = sd_bus_message_open_container(m, 'v', "as"); | |
460 | if (r < 0) | |
461 | return bus_log_create_error(r); | |
462 | ||
463 | r = sd_bus_message_open_container(m, 'a', "s"); | |
464 | if (r < 0) | |
465 | return bus_log_create_error(r); | |
466 | ||
467 | p = eq; | |
468 | ||
469 | for (;;) { | |
470 | _cleanup_free_ char *word = NULL; | |
471 | int offset; | |
472 | ||
473 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
474 | if (r < 0) { | |
475 | log_error("Failed to parse %s value %s", field, eq); | |
476 | return -EINVAL; | |
477 | } | |
478 | if (r == 0) | |
479 | break; | |
480 | ||
481 | if (!utf8_is_valid(word)) { | |
482 | log_error("Failed to parse %s value %s", field, eq); | |
483 | return -EINVAL; | |
484 | } | |
485 | ||
486 | offset = word[0] == '-'; | |
487 | if (!path_is_absolute(word + offset)) { | |
488 | log_error("Failed to parse %s value %s", field, eq); | |
489 | return -EINVAL; | |
490 | } | |
491 | ||
492 | path_kill_slashes(word + offset); | |
493 | ||
494 | r = sd_bus_message_append_basic(m, 's', word); | |
495 | if (r < 0) | |
496 | return bus_log_create_error(r); | |
497 | } | |
498 | ||
499 | r = sd_bus_message_close_container(m); | |
500 | if (r < 0) | |
501 | return bus_log_create_error(r); | |
502 | ||
503 | r = sd_bus_message_close_container(m); | |
504 | ||
505 | } else if (streq(field, "RuntimeDirectory")) { | |
506 | const char *p; | |
507 | ||
508 | r = sd_bus_message_open_container(m, 'v', "as"); | |
509 | if (r < 0) | |
510 | return bus_log_create_error(r); | |
511 | ||
512 | r = sd_bus_message_open_container(m, 'a', "s"); | |
513 | if (r < 0) | |
514 | return bus_log_create_error(r); | |
515 | ||
516 | p = eq; | |
517 | ||
518 | for (;;) { | |
519 | _cleanup_free_ char *word = NULL; | |
520 | ||
521 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
522 | if (r < 0) | |
523 | return log_error_errno(r, "Failed to parse %s value %s", field, eq); | |
524 | ||
525 | if (r == 0) | |
526 | break; | |
527 | ||
528 | r = sd_bus_message_append_basic(m, 's', word); | |
529 | if (r < 0) | |
530 | return bus_log_create_error(r); | |
531 | } | |
532 | ||
533 | r = sd_bus_message_close_container(m); | |
534 | if (r < 0) | |
535 | return bus_log_create_error(r); | |
536 | ||
537 | r = sd_bus_message_close_container(m); | |
538 | ||
539 | } else { | |
540 | log_error("Unknown assignment %s.", assignment); | |
541 | return -EINVAL; | |
542 | } | |
543 | ||
544 | finish: | |
545 | if (r < 0) | |
546 | return bus_log_create_error(r); | |
547 | ||
548 | r = sd_bus_message_close_container(m); | |
549 | if (r < 0) | |
550 | return bus_log_create_error(r); | |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
555 | typedef struct BusWaitForJobs { | |
556 | sd_bus *bus; | |
557 | Set *jobs; | |
558 | ||
559 | char *name; | |
560 | char *result; | |
561 | ||
562 | sd_bus_slot *slot_job_removed; | |
563 | sd_bus_slot *slot_disconnected; | |
564 | } BusWaitForJobs; | |
565 | ||
566 | static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
567 | assert(m); | |
568 | ||
569 | log_error("Warning! D-Bus connection terminated."); | |
570 | sd_bus_close(sd_bus_message_get_bus(m)); | |
571 | ||
572 | return 0; | |
573 | } | |
574 | ||
575 | static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
576 | const char *path, *unit, *result; | |
577 | BusWaitForJobs *d = userdata; | |
578 | uint32_t id; | |
579 | char *found; | |
580 | int r; | |
581 | ||
582 | assert(m); | |
583 | assert(d); | |
584 | ||
585 | r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); | |
586 | if (r < 0) { | |
587 | bus_log_parse_error(r); | |
588 | return 0; | |
589 | } | |
590 | ||
591 | found = set_remove(d->jobs, (char*) path); | |
592 | if (!found) | |
593 | return 0; | |
594 | ||
595 | free(found); | |
596 | ||
597 | if (!isempty(result)) | |
598 | d->result = strdup(result); | |
599 | ||
600 | if (!isempty(unit)) | |
601 | d->name = strdup(unit); | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
606 | void bus_wait_for_jobs_free(BusWaitForJobs *d) { | |
607 | if (!d) | |
608 | return; | |
609 | ||
610 | set_free_free(d->jobs); | |
611 | ||
612 | sd_bus_slot_unref(d->slot_disconnected); | |
613 | sd_bus_slot_unref(d->slot_job_removed); | |
614 | ||
615 | sd_bus_unref(d->bus); | |
616 | ||
617 | free(d->name); | |
618 | free(d->result); | |
619 | ||
620 | free(d); | |
621 | } | |
622 | ||
623 | int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { | |
624 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; | |
625 | int r; | |
626 | ||
627 | assert(bus); | |
628 | assert(ret); | |
629 | ||
630 | d = new0(BusWaitForJobs, 1); | |
631 | if (!d) | |
632 | return -ENOMEM; | |
633 | ||
634 | d->bus = sd_bus_ref(bus); | |
635 | ||
636 | /* When we are a bus client we match by sender. Direct | |
637 | * connections OTOH have no initialized sender field, and | |
638 | * hence we ignore the sender then */ | |
639 | r = sd_bus_add_match( | |
640 | bus, | |
641 | &d->slot_job_removed, | |
642 | bus->bus_client ? | |
643 | "type='signal'," | |
644 | "sender='org.freedesktop.systemd1'," | |
645 | "interface='org.freedesktop.systemd1.Manager'," | |
646 | "member='JobRemoved'," | |
647 | "path='/org/freedesktop/systemd1'" : | |
648 | "type='signal'," | |
649 | "interface='org.freedesktop.systemd1.Manager'," | |
650 | "member='JobRemoved'," | |
651 | "path='/org/freedesktop/systemd1'", | |
652 | match_job_removed, d); | |
653 | if (r < 0) | |
654 | return r; | |
655 | ||
656 | r = sd_bus_add_match( | |
657 | bus, | |
658 | &d->slot_disconnected, | |
659 | "type='signal'," | |
660 | "sender='org.freedesktop.DBus.Local'," | |
661 | "interface='org.freedesktop.DBus.Local'," | |
662 | "member='Disconnected'", | |
663 | match_disconnected, d); | |
664 | if (r < 0) | |
665 | return r; | |
666 | ||
667 | *ret = d; | |
668 | d = NULL; | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
673 | static int bus_process_wait(sd_bus *bus) { | |
674 | int r; | |
675 | ||
676 | for (;;) { | |
677 | r = sd_bus_process(bus, NULL); | |
678 | if (r < 0) | |
679 | return r; | |
680 | if (r > 0) | |
681 | return 0; | |
682 | ||
683 | r = sd_bus_wait(bus, (uint64_t) -1); | |
684 | if (r < 0) | |
685 | return r; | |
686 | } | |
687 | } | |
688 | ||
689 | static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { | |
690 | _cleanup_free_ char *dbus_path = NULL; | |
691 | ||
692 | assert(d); | |
693 | assert(d->name); | |
694 | assert(result); | |
695 | ||
696 | dbus_path = unit_dbus_path_from_name(d->name); | |
697 | if (!dbus_path) | |
698 | return -ENOMEM; | |
699 | ||
700 | return sd_bus_get_property_string(d->bus, | |
701 | "org.freedesktop.systemd1", | |
702 | dbus_path, | |
703 | "org.freedesktop.systemd1.Service", | |
704 | "Result", | |
705 | NULL, | |
706 | result); | |
707 | } | |
708 | ||
709 | static const struct { | |
710 | const char *result, *explanation; | |
711 | } explanations [] = { | |
0b2de9d9 | 712 | { "resources", "of unavailable resources or another system error" }, |
20b16441 LP |
713 | { "timeout", "a timeout was exceeded" }, |
714 | { "exit-code", "the control process exited with error code" }, | |
715 | { "signal", "a fatal signal was delivered to the control process" }, | |
716 | { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, | |
717 | { "watchdog", "the service failed to send watchdog ping" }, | |
718 | { "start-limit", "start of the service was attempted too often" } | |
719 | }; | |
720 | ||
721 | static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) { | |
722 | _cleanup_free_ char *service_shell_quoted = NULL; | |
723 | const char *systemctl = "systemctl", *journalctl = "journalctl"; | |
724 | ||
725 | assert(service); | |
726 | ||
727 | service_shell_quoted = shell_maybe_quote(service); | |
728 | ||
729 | if (extra_args && extra_args[1]) { | |
730 | _cleanup_free_ char *t; | |
731 | ||
732 | t = strv_join((char**) extra_args, " "); | |
733 | systemctl = strjoina("systemctl ", t ? : "<args>"); | |
734 | journalctl = strjoina("journalctl ", t ? : "<args>"); | |
735 | } | |
736 | ||
737 | if (!isempty(result)) { | |
738 | unsigned i; | |
739 | ||
740 | for (i = 0; i < ELEMENTSOF(explanations); ++i) | |
741 | if (streq(result, explanations[i].result)) | |
742 | break; | |
743 | ||
744 | if (i < ELEMENTSOF(explanations)) { | |
745 | log_error("Job for %s failed because %s.\n" | |
746 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
747 | service, | |
748 | explanations[i].explanation, | |
749 | systemctl, | |
750 | service_shell_quoted ?: "<service>", | |
751 | journalctl); | |
752 | goto finish; | |
753 | } | |
754 | } | |
755 | ||
756 | log_error("Job for %s failed.\n" | |
757 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
758 | service, | |
759 | systemctl, | |
760 | service_shell_quoted ?: "<service>", | |
761 | journalctl); | |
762 | ||
763 | finish: | |
764 | /* For some results maybe additional explanation is required */ | |
765 | if (streq_ptr(result, "start-limit")) | |
766 | log_info("To force a start use \"%1$s reset-failed %2$s\"\n" | |
767 | "followed by \"%1$s start %2$s\" again.", | |
768 | systemctl, | |
769 | service_shell_quoted ?: "<service>"); | |
770 | } | |
771 | ||
772 | static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
773 | int r = 0; | |
774 | ||
775 | assert(d->result); | |
776 | ||
777 | if (!quiet) { | |
778 | if (streq(d->result, "canceled")) | |
779 | log_error("Job for %s canceled.", strna(d->name)); | |
780 | else if (streq(d->result, "timeout")) | |
781 | log_error("Job for %s timed out.", strna(d->name)); | |
782 | else if (streq(d->result, "dependency")) | |
783 | log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); | |
784 | else if (streq(d->result, "invalid")) | |
785 | log_error("%s is not active, cannot reload.", strna(d->name)); | |
786 | else if (streq(d->result, "assert")) | |
787 | log_error("Assertion failed on job for %s.", strna(d->name)); | |
788 | else if (streq(d->result, "unsupported")) | |
789 | log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); | |
790 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { | |
791 | if (d->name) { | |
792 | int q; | |
793 | _cleanup_free_ char *result = NULL; | |
794 | ||
795 | q = bus_job_get_service_result(d, &result); | |
796 | if (q < 0) | |
797 | log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); | |
798 | ||
799 | log_job_error_with_service_result(d->name, result, extra_args); | |
800 | } else | |
801 | log_error("Job failed. See \"journalctl -xe\" for details."); | |
802 | } | |
803 | } | |
804 | ||
805 | if (streq(d->result, "canceled")) | |
806 | r = -ECANCELED; | |
807 | else if (streq(d->result, "timeout")) | |
808 | r = -ETIME; | |
809 | else if (streq(d->result, "dependency")) | |
810 | r = -EIO; | |
811 | else if (streq(d->result, "invalid")) | |
812 | r = -ENOEXEC; | |
813 | else if (streq(d->result, "assert")) | |
814 | r = -EPROTO; | |
815 | else if (streq(d->result, "unsupported")) | |
816 | r = -EOPNOTSUPP; | |
817 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) | |
818 | r = -EIO; | |
819 | ||
820 | return r; | |
821 | } | |
822 | ||
823 | int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
824 | int r = 0; | |
825 | ||
826 | assert(d); | |
827 | ||
828 | while (!set_isempty(d->jobs)) { | |
829 | int q; | |
830 | ||
831 | q = bus_process_wait(d->bus); | |
832 | if (q < 0) | |
833 | return log_error_errno(q, "Failed to wait for response: %m"); | |
834 | ||
835 | if (d->result) { | |
836 | q = check_wait_response(d, quiet, extra_args); | |
837 | /* Return the first error as it is most likely to be | |
838 | * meaningful. */ | |
839 | if (q < 0 && r == 0) | |
840 | r = q; | |
841 | ||
842 | log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); | |
843 | } | |
844 | ||
845 | d->name = mfree(d->name); | |
846 | d->result = mfree(d->result); | |
847 | } | |
848 | ||
849 | return r; | |
850 | } | |
851 | ||
852 | int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { | |
853 | int r; | |
854 | ||
855 | assert(d); | |
856 | ||
857 | r = set_ensure_allocated(&d->jobs, &string_hash_ops); | |
858 | if (r < 0) | |
859 | return r; | |
860 | ||
861 | return set_put_strdup(d->jobs, path); | |
862 | } | |
863 | ||
864 | int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { | |
865 | int r; | |
866 | ||
867 | r = bus_wait_for_jobs_add(d, path); | |
868 | if (r < 0) | |
869 | return log_oom(); | |
870 | ||
871 | return bus_wait_for_jobs(d, quiet, NULL); | |
872 | } | |
873 | ||
874 | int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { | |
875 | const char *type, *path, *source; | |
876 | int r; | |
877 | ||
acc0269c CH |
878 | /* changes is dereferenced when calling unit_file_dump_changes() later, |
879 | * so we have to make sure this is not NULL. */ | |
880 | assert(changes); | |
881 | assert(n_changes); | |
882 | ||
20b16441 LP |
883 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); |
884 | if (r < 0) | |
885 | return bus_log_parse_error(r); | |
886 | ||
887 | while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { | |
888 | /* We expect only "success" changes to be sent over the bus. | |
889 | Hence, reject anything negative. */ | |
890 | UnitFileChangeType ch = unit_file_change_type_from_string(type); | |
891 | ||
892 | if (ch < 0) { | |
893 | log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path); | |
894 | continue; | |
895 | } | |
896 | ||
897 | r = unit_file_changes_add(changes, n_changes, ch, path, source); | |
898 | if (r < 0) | |
899 | return r; | |
900 | } | |
901 | if (r < 0) | |
902 | return bus_log_parse_error(r); | |
903 | ||
904 | r = sd_bus_message_exit_container(m); | |
905 | if (r < 0) | |
906 | return bus_log_parse_error(r); | |
907 | ||
908 | unit_file_dump_changes(0, NULL, *changes, *n_changes, false); | |
909 | return 0; | |
910 | } | |
911 | ||
291d565a LP |
912 | struct CGroupInfo { |
913 | char *cgroup_path; | |
914 | bool is_const; /* If false, cgroup_path should be free()'d */ | |
915 | ||
916 | Hashmap *pids; /* PID → process name */ | |
917 | bool done; | |
918 | ||
919 | struct CGroupInfo *parent; | |
920 | LIST_FIELDS(struct CGroupInfo, siblings); | |
921 | LIST_HEAD(struct CGroupInfo, children); | |
922 | size_t n_children; | |
923 | }; | |
924 | ||
925 | static bool IS_ROOT(const char *p) { | |
926 | return isempty(p) || streq(p, "/"); | |
927 | } | |
928 | ||
929 | static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) { | |
930 | struct CGroupInfo *parent = NULL, *cg; | |
931 | int r; | |
932 | ||
933 | assert(cgroups); | |
934 | assert(ret); | |
935 | ||
936 | if (IS_ROOT(path)) | |
937 | path = "/"; | |
938 | ||
939 | cg = hashmap_get(cgroups, path); | |
940 | if (cg) { | |
941 | *ret = cg; | |
942 | return 0; | |
943 | } | |
944 | ||
945 | if (!IS_ROOT(path)) { | |
946 | const char *e, *pp; | |
947 | ||
948 | e = strrchr(path, '/'); | |
949 | if (!e) | |
950 | return -EINVAL; | |
951 | ||
952 | pp = strndupa(path, e - path); | |
953 | if (!pp) | |
954 | return -ENOMEM; | |
955 | ||
956 | r = add_cgroup(cgroups, pp, false, &parent); | |
957 | if (r < 0) | |
958 | return r; | |
959 | } | |
960 | ||
961 | cg = new0(struct CGroupInfo, 1); | |
962 | if (!cg) | |
963 | return -ENOMEM; | |
964 | ||
965 | if (is_const) | |
966 | cg->cgroup_path = (char*) path; | |
967 | else { | |
968 | cg->cgroup_path = strdup(path); | |
969 | if (!cg->cgroup_path) { | |
970 | free(cg); | |
971 | return -ENOMEM; | |
972 | } | |
973 | } | |
974 | ||
975 | cg->is_const = is_const; | |
976 | cg->parent = parent; | |
977 | ||
978 | r = hashmap_put(cgroups, cg->cgroup_path, cg); | |
979 | if (r < 0) { | |
980 | if (!is_const) | |
981 | free(cg->cgroup_path); | |
982 | free(cg); | |
983 | return r; | |
984 | } | |
985 | ||
986 | if (parent) { | |
987 | LIST_PREPEND(siblings, parent->children, cg); | |
988 | parent->n_children++; | |
989 | } | |
990 | ||
991 | *ret = cg; | |
992 | return 1; | |
993 | } | |
994 | ||
995 | static int add_process( | |
996 | Hashmap *cgroups, | |
997 | const char *path, | |
998 | pid_t pid, | |
999 | const char *name) { | |
1000 | ||
1001 | struct CGroupInfo *cg; | |
1002 | int r; | |
1003 | ||
1004 | assert(cgroups); | |
1005 | assert(name); | |
1006 | assert(pid > 0); | |
1007 | ||
1008 | r = add_cgroup(cgroups, path, true, &cg); | |
1009 | if (r < 0) | |
1010 | return r; | |
1011 | ||
1012 | r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops); | |
1013 | if (r < 0) | |
1014 | return r; | |
1015 | ||
1016 | return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name); | |
1017 | } | |
1018 | ||
1019 | static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) { | |
1020 | assert(cgroups); | |
1021 | assert(cg); | |
1022 | ||
1023 | while (cg->children) | |
1024 | remove_cgroup(cgroups, cg->children); | |
1025 | ||
1026 | hashmap_remove(cgroups, cg->cgroup_path); | |
1027 | ||
1028 | if (!cg->is_const) | |
1029 | free(cg->cgroup_path); | |
1030 | ||
1031 | hashmap_free(cg->pids); | |
1032 | ||
1033 | if (cg->parent) | |
1034 | LIST_REMOVE(siblings, cg->parent->children, cg); | |
1035 | ||
1036 | free(cg); | |
1037 | } | |
1038 | ||
1039 | static int cgroup_info_compare_func(const void *a, const void *b) { | |
1040 | const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b; | |
1041 | ||
1042 | assert(x); | |
1043 | assert(y); | |
1044 | ||
1045 | return strcmp(x->cgroup_path, y->cgroup_path); | |
1046 | } | |
1047 | ||
1048 | static int dump_processes( | |
1049 | Hashmap *cgroups, | |
1050 | const char *cgroup_path, | |
1051 | const char *prefix, | |
1052 | unsigned n_columns, | |
1053 | OutputFlags flags) { | |
1054 | ||
1055 | struct CGroupInfo *cg; | |
1056 | int r; | |
1057 | ||
1058 | assert(prefix); | |
1059 | ||
1060 | if (IS_ROOT(cgroup_path)) | |
1061 | cgroup_path = "/"; | |
1062 | ||
1063 | cg = hashmap_get(cgroups, cgroup_path); | |
1064 | if (!cg) | |
1065 | return 0; | |
1066 | ||
1067 | if (!hashmap_isempty(cg->pids)) { | |
1068 | const char *name; | |
1069 | size_t n = 0, i; | |
1070 | pid_t *pids; | |
1071 | void *pidp; | |
1072 | Iterator j; | |
1073 | int width; | |
1074 | ||
1075 | /* Order processes by their PID */ | |
1076 | pids = newa(pid_t, hashmap_size(cg->pids)); | |
1077 | ||
1078 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) | |
1079 | pids[n++] = PTR_TO_PID(pidp); | |
1080 | ||
1081 | assert(n == hashmap_size(cg->pids)); | |
1082 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1083 | ||
1084 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1085 | ||
1086 | for (i = 0; i < n; i++) { | |
1087 | _cleanup_free_ char *e = NULL; | |
1088 | const char *special; | |
1089 | bool more; | |
1090 | ||
1091 | name = hashmap_get(cg->pids, PID_TO_PTR(pids[i])); | |
1092 | assert(name); | |
1093 | ||
1094 | if (n_columns != 0) { | |
1095 | unsigned k; | |
1096 | ||
1097 | k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1098 | ||
1099 | e = ellipsize(name, k, 100); | |
1100 | if (e) | |
1101 | name = e; | |
1102 | } | |
1103 | ||
1104 | more = i+1 < n || cg->children; | |
323b7dc9 | 1105 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1106 | |
1107 | fprintf(stdout, "%s%s%*"PID_PRI" %s\n", | |
1108 | prefix, | |
1109 | special, | |
1110 | width, pids[i], | |
1111 | name); | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | if (cg->children) { | |
1116 | struct CGroupInfo **children, *child; | |
1117 | size_t n = 0, i; | |
1118 | ||
1119 | /* Order subcgroups by their name */ | |
1120 | children = newa(struct CGroupInfo*, cg->n_children); | |
1121 | LIST_FOREACH(siblings, child, cg->children) | |
1122 | children[n++] = child; | |
1123 | assert(n == cg->n_children); | |
1124 | qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func); | |
1125 | ||
1126 | n_columns = MAX(LESS_BY(n_columns, 2U), 20U); | |
1127 | ||
1128 | for (i = 0; i < n; i++) { | |
1129 | _cleanup_free_ char *pp = NULL; | |
1130 | const char *name, *special; | |
1131 | bool more; | |
1132 | ||
1133 | child = children[i]; | |
1134 | ||
1135 | name = strrchr(child->cgroup_path, '/'); | |
1136 | if (!name) | |
1137 | return -EINVAL; | |
1138 | name++; | |
1139 | ||
1140 | more = i+1 < n; | |
323b7dc9 | 1141 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1142 | |
1143 | fputs(prefix, stdout); | |
1144 | fputs(special, stdout); | |
1145 | fputs(name, stdout); | |
1146 | fputc('\n', stdout); | |
1147 | ||
323b7dc9 | 1148 | special = special_glyph(more ? TREE_VERTICAL : TREE_SPACE); |
291d565a LP |
1149 | |
1150 | pp = strappend(prefix, special); | |
1151 | if (!pp) | |
1152 | return -ENOMEM; | |
1153 | ||
1154 | r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags); | |
1155 | if (r < 0) | |
1156 | return r; | |
1157 | } | |
1158 | } | |
1159 | ||
1160 | cg->done = true; | |
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | static int dump_extra_processes( | |
1165 | Hashmap *cgroups, | |
1166 | const char *prefix, | |
1167 | unsigned n_columns, | |
1168 | OutputFlags flags) { | |
1169 | ||
1170 | _cleanup_free_ pid_t *pids = NULL; | |
1171 | _cleanup_hashmap_free_ Hashmap *names = NULL; | |
1172 | struct CGroupInfo *cg; | |
1173 | size_t n_allocated = 0, n = 0, k; | |
1174 | Iterator i; | |
1175 | int width, r; | |
1176 | ||
1177 | /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as | |
1178 | * combined, sorted, linear list. */ | |
1179 | ||
1180 | HASHMAP_FOREACH(cg, cgroups, i) { | |
1181 | const char *name; | |
1182 | void *pidp; | |
1183 | Iterator j; | |
1184 | ||
1185 | if (cg->done) | |
1186 | continue; | |
1187 | ||
1188 | if (hashmap_isempty(cg->pids)) | |
1189 | continue; | |
1190 | ||
1191 | r = hashmap_ensure_allocated(&names, &trivial_hash_ops); | |
1192 | if (r < 0) | |
1193 | return r; | |
1194 | ||
1195 | if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids))) | |
1196 | return -ENOMEM; | |
1197 | ||
1198 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) { | |
1199 | pids[n++] = PTR_TO_PID(pidp); | |
1200 | ||
1201 | r = hashmap_put(names, pidp, (void*) name); | |
1202 | if (r < 0) | |
1203 | return r; | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | if (n == 0) | |
1208 | return 0; | |
1209 | ||
1210 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1211 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1212 | ||
1213 | for (k = 0; k < n; k++) { | |
1214 | _cleanup_free_ char *e = NULL; | |
1215 | const char *name; | |
1216 | ||
1217 | name = hashmap_get(names, PID_TO_PTR(pids[k])); | |
1218 | assert(name); | |
1219 | ||
1220 | if (n_columns != 0) { | |
1221 | unsigned z; | |
1222 | ||
1223 | z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1224 | ||
1225 | e = ellipsize(name, z, 100); | |
1226 | if (e) | |
1227 | name = e; | |
1228 | } | |
1229 | ||
1230 | fprintf(stdout, "%s%s %*" PID_PRI " %s\n", | |
1231 | prefix, | |
323b7dc9 | 1232 | special_glyph(TRIANGULAR_BULLET), |
291d565a LP |
1233 | width, pids[k], |
1234 | name); | |
1235 | } | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | int unit_show_processes( | |
1241 | sd_bus *bus, | |
1242 | const char *unit, | |
1243 | const char *cgroup_path, | |
1244 | const char *prefix, | |
1245 | unsigned n_columns, | |
1246 | OutputFlags flags, | |
1247 | sd_bus_error *error) { | |
1248 | ||
1249 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1250 | Hashmap *cgroups = NULL; | |
1251 | struct CGroupInfo *cg; | |
1252 | int r; | |
1253 | ||
1254 | assert(bus); | |
1255 | assert(unit); | |
1256 | ||
1257 | if (flags & OUTPUT_FULL_WIDTH) | |
1258 | n_columns = 0; | |
1259 | else if (n_columns <= 0) | |
1260 | n_columns = columns(); | |
1261 | ||
1262 | prefix = strempty(prefix); | |
1263 | ||
1264 | r = sd_bus_call_method( | |
1265 | bus, | |
1266 | "org.freedesktop.systemd1", | |
1267 | "/org/freedesktop/systemd1", | |
1268 | "org.freedesktop.systemd1.Manager", | |
1269 | "GetUnitProcesses", | |
1270 | error, | |
1271 | &reply, | |
1272 | "s", | |
1273 | unit); | |
1274 | if (r < 0) | |
1275 | return r; | |
1276 | ||
1277 | cgroups = hashmap_new(&string_hash_ops); | |
1278 | if (!cgroups) | |
1279 | return -ENOMEM; | |
1280 | ||
1281 | r = sd_bus_message_enter_container(reply, 'a', "(sus)"); | |
1282 | if (r < 0) | |
1283 | goto finish; | |
1284 | ||
1285 | for (;;) { | |
1286 | const char *path = NULL, *name = NULL; | |
1287 | uint32_t pid; | |
1288 | ||
1289 | r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name); | |
1290 | if (r < 0) | |
1291 | goto finish; | |
1292 | if (r == 0) | |
1293 | break; | |
1294 | ||
1295 | r = add_process(cgroups, path, pid, name); | |
1296 | if (r < 0) | |
1297 | goto finish; | |
1298 | } | |
1299 | ||
1300 | r = sd_bus_message_exit_container(reply); | |
1301 | if (r < 0) | |
1302 | goto finish; | |
1303 | ||
1304 | r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags); | |
1305 | if (r < 0) | |
1306 | goto finish; | |
1307 | ||
1308 | r = dump_extra_processes(cgroups, prefix, n_columns, flags); | |
1309 | ||
1310 | finish: | |
1311 | while ((cg = hashmap_first(cgroups))) | |
1312 | remove_cgroup(cgroups, cg); | |
1313 | ||
1314 | hashmap_free(cgroups); | |
1315 | ||
1316 | return r; | |
1317 | } |