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Commit | Line | Data |
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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 | 86 | else { |
5124866d | 87 | r = parse_percent_unbounded(eq); |
9184ca48 LP |
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 | |
f7903e8d | 135 | * 0…UINT32_MAX and pass it in the MemoryLowScale property (and related |
d58d600e LP |
136 | * ones). This way the physical memory size can be determined server-side */ |
137 | ||
f7903e8d | 138 | n = strjoina(field, "Scale"); |
d58d600e LP |
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; | |
83f8e808 LP |
151 | } else if (streq(field, "TasksMax")) { |
152 | uint64_t t; | |
153 | ||
154 | if (isempty(eq) || streq(eq, "infinity")) | |
155 | t = (uint64_t) -1; | |
156 | else { | |
157 | r = parse_percent(eq); | |
158 | if (r >= 0) { | |
159 | r = sd_bus_message_append(m, "sv", "TasksMaxScale", "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U)); | |
160 | goto finish; | |
161 | } else { | |
162 | r = safe_atou64(eq, &t); | |
163 | if (r < 0) | |
164 | return log_error_errno(r, "Failed to parse maximum tasks specification %s", assignment); | |
165 | } | |
166 | ||
167 | } | |
168 | ||
169 | r = sd_bus_message_append(m, "sv", "TasksMax", "t", t); | |
170 | goto finish; | |
20b16441 LP |
171 | } |
172 | ||
173 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); | |
174 | if (r < 0) | |
175 | return bus_log_create_error(r); | |
176 | ||
177 | rl = rlimit_from_string(field); | |
178 | if (rl >= 0) { | |
179 | const char *sn; | |
180 | struct rlimit l; | |
181 | ||
182 | r = rlimit_parse(rl, eq, &l); | |
183 | if (r < 0) | |
184 | return log_error_errno(r, "Failed to parse resource limit: %s", eq); | |
185 | ||
186 | r = sd_bus_message_append(m, "v", "t", l.rlim_max); | |
187 | if (r < 0) | |
188 | return bus_log_create_error(r); | |
189 | ||
190 | r = sd_bus_message_close_container(m); | |
191 | if (r < 0) | |
192 | return bus_log_create_error(r); | |
193 | ||
194 | r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); | |
195 | if (r < 0) | |
196 | return bus_log_create_error(r); | |
197 | ||
198 | sn = strjoina(field, "Soft"); | |
199 | r = sd_bus_message_append(m, "sv", sn, "t", l.rlim_cur); | |
200 | ||
201 | } else if (STR_IN_SET(field, | |
29206d46 LP |
202 | "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", "TasksAccounting", |
203 | "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies", | |
204 | "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit", | |
d251207d | 205 | "PrivateTmp", "PrivateDevices", "PrivateNetwork", "PrivateUsers", "NoNewPrivileges", |
29206d46 LP |
206 | "SyslogLevelPrefix", "Delegate", "RemainAfterElapse", "MemoryDenyWriteExecute", |
207 | "RestrictRealtime", "DynamicUser")) { | |
20b16441 LP |
208 | |
209 | r = parse_boolean(eq); | |
210 | if (r < 0) | |
211 | return log_error_errno(r, "Failed to parse boolean assignment %s.", assignment); | |
212 | ||
213 | r = sd_bus_message_append(m, "v", "b", r); | |
214 | ||
66ebf6c0 TH |
215 | } else if (STR_IN_SET(field, "CPUWeight", "StartupCPUWeight")) { |
216 | uint64_t u; | |
217 | ||
218 | r = cg_weight_parse(eq, &u); | |
219 | if (r < 0) { | |
220 | log_error("Failed to parse %s value %s.", field, eq); | |
221 | return -EINVAL; | |
222 | } | |
223 | ||
224 | r = sd_bus_message_append(m, "v", "t", u); | |
225 | ||
20b16441 LP |
226 | } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) { |
227 | uint64_t u; | |
228 | ||
229 | r = cg_cpu_shares_parse(eq, &u); | |
230 | if (r < 0) { | |
231 | log_error("Failed to parse %s value %s.", field, eq); | |
232 | return -EINVAL; | |
233 | } | |
234 | ||
235 | r = sd_bus_message_append(m, "v", "t", u); | |
236 | ||
13c31542 TH |
237 | } else if (STR_IN_SET(field, "IOWeight", "StartupIOWeight")) { |
238 | uint64_t u; | |
239 | ||
240 | r = cg_weight_parse(eq, &u); | |
241 | if (r < 0) { | |
242 | log_error("Failed to parse %s value %s.", field, eq); | |
243 | return -EINVAL; | |
244 | } | |
245 | ||
246 | r = sd_bus_message_append(m, "v", "t", u); | |
247 | ||
20b16441 LP |
248 | } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { |
249 | uint64_t u; | |
250 | ||
3fdf9ad7 | 251 | r = cg_blkio_weight_parse(eq, &u); |
20b16441 LP |
252 | if (r < 0) { |
253 | log_error("Failed to parse %s value %s.", field, eq); | |
254 | return -EINVAL; | |
255 | } | |
256 | ||
257 | r = sd_bus_message_append(m, "v", "t", u); | |
258 | ||
259 | } else if (STR_IN_SET(field, | |
260 | "User", "Group", "DevicePolicy", "KillMode", | |
261 | "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", | |
262 | "StandardInput", "StandardOutput", "StandardError", | |
263 | "Description", "Slice", "Type", "WorkingDirectory", | |
264 | "RootDirectory", "SyslogIdentifier", "ProtectSystem", | |
186ad4b1 | 265 | "ProtectHome", "SELinuxContext")) |
20b16441 LP |
266 | r = sd_bus_message_append(m, "v", "s", eq); |
267 | ||
268 | else if (streq(field, "SyslogLevel")) { | |
269 | int level; | |
270 | ||
271 | level = log_level_from_string(eq); | |
272 | if (level < 0) { | |
273 | log_error("Failed to parse %s value %s.", field, eq); | |
274 | return -EINVAL; | |
275 | } | |
276 | ||
277 | r = sd_bus_message_append(m, "v", "i", level); | |
278 | ||
279 | } else if (streq(field, "SyslogFacility")) { | |
280 | int facility; | |
281 | ||
282 | facility = log_facility_unshifted_from_string(eq); | |
283 | if (facility < 0) { | |
284 | log_error("Failed to parse %s value %s.", field, eq); | |
285 | return -EINVAL; | |
286 | } | |
287 | ||
288 | r = sd_bus_message_append(m, "v", "i", facility); | |
289 | ||
290 | } else if (streq(field, "DeviceAllow")) { | |
291 | ||
292 | if (isempty(eq)) | |
293 | r = sd_bus_message_append(m, "v", "a(ss)", 0); | |
294 | else { | |
295 | const char *path, *rwm, *e; | |
296 | ||
297 | e = strchr(eq, ' '); | |
298 | if (e) { | |
299 | path = strndupa(eq, e - eq); | |
300 | rwm = e+1; | |
301 | } else { | |
302 | path = eq; | |
303 | rwm = ""; | |
304 | } | |
305 | ||
306 | if (!path_startswith(path, "/dev")) { | |
307 | log_error("%s is not a device file in /dev.", path); | |
308 | return -EINVAL; | |
309 | } | |
310 | ||
311 | r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); | |
312 | } | |
313 | ||
9be57249 | 314 | } else if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { |
20b16441 LP |
315 | |
316 | if (isempty(eq)) | |
317 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
318 | else { | |
319 | const char *path, *bandwidth, *e; | |
320 | uint64_t bytes; | |
321 | ||
322 | e = strchr(eq, ' '); | |
323 | if (e) { | |
324 | path = strndupa(eq, e - eq); | |
325 | bandwidth = e+1; | |
326 | } else { | |
327 | log_error("Failed to parse %s value %s.", field, eq); | |
328 | return -EINVAL; | |
329 | } | |
330 | ||
331 | if (!path_startswith(path, "/dev")) { | |
332 | log_error("%s is not a device file in /dev.", path); | |
333 | return -EINVAL; | |
334 | } | |
335 | ||
e57c9ce1 | 336 | if (streq(bandwidth, "infinity")) { |
13c31542 TH |
337 | bytes = CGROUP_LIMIT_MAX; |
338 | } else { | |
339 | r = parse_size(bandwidth, 1000, &bytes); | |
340 | if (r < 0) { | |
341 | log_error("Failed to parse byte value %s.", bandwidth); | |
342 | return -EINVAL; | |
343 | } | |
20b16441 LP |
344 | } |
345 | ||
346 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); | |
347 | } | |
348 | ||
13c31542 | 349 | } else if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) { |
20b16441 LP |
350 | |
351 | if (isempty(eq)) | |
352 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
353 | else { | |
354 | const char *path, *weight, *e; | |
355 | uint64_t u; | |
356 | ||
357 | e = strchr(eq, ' '); | |
358 | if (e) { | |
359 | path = strndupa(eq, e - eq); | |
360 | weight = e+1; | |
361 | } else { | |
362 | log_error("Failed to parse %s value %s.", field, eq); | |
363 | return -EINVAL; | |
364 | } | |
365 | ||
366 | if (!path_startswith(path, "/dev")) { | |
367 | log_error("%s is not a device file in /dev.", path); | |
368 | return -EINVAL; | |
369 | } | |
370 | ||
371 | r = safe_atou64(weight, &u); | |
372 | if (r < 0) { | |
373 | log_error("Failed to parse %s value %s.", field, weight); | |
374 | return -EINVAL; | |
375 | } | |
096a4d53 | 376 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, u); |
20b16441 LP |
377 | } |
378 | ||
379 | } else if (streq(field, "Nice")) { | |
41bf0590 | 380 | int n; |
20b16441 | 381 | |
41bf0590 LP |
382 | r = parse_nice(eq, &n); |
383 | if (r < 0) | |
384 | return log_error_errno(r, "Failed to parse nice value: %s", eq); | |
20b16441 | 385 | |
41bf0590 | 386 | r = sd_bus_message_append(m, "v", "i", (int32_t) n); |
20b16441 LP |
387 | |
388 | } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) { | |
389 | const char *p; | |
390 | ||
391 | r = sd_bus_message_open_container(m, 'v', "as"); | |
392 | if (r < 0) | |
393 | return bus_log_create_error(r); | |
394 | ||
395 | r = sd_bus_message_open_container(m, 'a', "s"); | |
396 | if (r < 0) | |
397 | return bus_log_create_error(r); | |
398 | ||
399 | p = eq; | |
400 | ||
401 | for (;;) { | |
402 | _cleanup_free_ char *word = NULL; | |
403 | ||
404 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); | |
405 | if (r < 0) { | |
406 | log_error("Failed to parse Environment value %s", eq); | |
407 | return -EINVAL; | |
408 | } | |
409 | if (r == 0) | |
410 | break; | |
411 | ||
412 | if (streq(field, "Environment")) { | |
413 | if (!env_assignment_is_valid(word)) { | |
414 | log_error("Invalid environment assignment: %s", word); | |
415 | return -EINVAL; | |
416 | } | |
417 | } else { /* PassEnvironment */ | |
418 | if (!env_name_is_valid(word)) { | |
419 | log_error("Invalid environment variable name: %s", word); | |
420 | return -EINVAL; | |
421 | } | |
422 | } | |
423 | ||
424 | r = sd_bus_message_append_basic(m, 's', word); | |
425 | if (r < 0) | |
426 | return bus_log_create_error(r); | |
427 | } | |
428 | ||
429 | r = sd_bus_message_close_container(m); | |
430 | if (r < 0) | |
431 | return bus_log_create_error(r); | |
432 | ||
433 | r = sd_bus_message_close_container(m); | |
434 | ||
435 | } else if (streq(field, "KillSignal")) { | |
436 | int sig; | |
437 | ||
438 | sig = signal_from_string_try_harder(eq); | |
439 | if (sig < 0) { | |
440 | log_error("Failed to parse %s value %s.", field, eq); | |
441 | return -EINVAL; | |
442 | } | |
443 | ||
444 | r = sd_bus_message_append(m, "v", "i", sig); | |
445 | ||
446 | } else if (streq(field, "TimerSlackNSec")) { | |
447 | nsec_t n; | |
448 | ||
449 | r = parse_nsec(eq, &n); | |
450 | if (r < 0) { | |
451 | log_error("Failed to parse %s value %s", field, eq); | |
452 | return -EINVAL; | |
453 | } | |
454 | ||
455 | r = sd_bus_message_append(m, "v", "t", n); | |
456 | } else if (streq(field, "OOMScoreAdjust")) { | |
457 | int oa; | |
458 | ||
459 | r = safe_atoi(eq, &oa); | |
460 | if (r < 0) { | |
461 | log_error("Failed to parse %s value %s", field, eq); | |
462 | return -EINVAL; | |
463 | } | |
464 | ||
465 | if (!oom_score_adjust_is_valid(oa)) { | |
466 | log_error("OOM score adjust value out of range"); | |
467 | return -EINVAL; | |
468 | } | |
469 | ||
470 | r = sd_bus_message_append(m, "v", "i", oa); | |
2a624c36 AP |
471 | } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories", |
472 | "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) { | |
20b16441 LP |
473 | const char *p; |
474 | ||
475 | r = sd_bus_message_open_container(m, 'v', "as"); | |
476 | if (r < 0) | |
477 | return bus_log_create_error(r); | |
478 | ||
479 | r = sd_bus_message_open_container(m, 'a', "s"); | |
480 | if (r < 0) | |
481 | return bus_log_create_error(r); | |
482 | ||
483 | p = eq; | |
484 | ||
485 | for (;;) { | |
486 | _cleanup_free_ char *word = NULL; | |
487 | int offset; | |
488 | ||
489 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
490 | if (r < 0) { | |
491 | log_error("Failed to parse %s value %s", field, eq); | |
492 | return -EINVAL; | |
493 | } | |
494 | if (r == 0) | |
495 | break; | |
496 | ||
497 | if (!utf8_is_valid(word)) { | |
498 | log_error("Failed to parse %s value %s", field, eq); | |
499 | return -EINVAL; | |
500 | } | |
501 | ||
502 | offset = word[0] == '-'; | |
503 | if (!path_is_absolute(word + offset)) { | |
504 | log_error("Failed to parse %s value %s", field, eq); | |
505 | return -EINVAL; | |
506 | } | |
507 | ||
508 | path_kill_slashes(word + offset); | |
509 | ||
510 | r = sd_bus_message_append_basic(m, 's', word); | |
511 | if (r < 0) | |
512 | return bus_log_create_error(r); | |
513 | } | |
514 | ||
515 | r = sd_bus_message_close_container(m); | |
516 | if (r < 0) | |
517 | return bus_log_create_error(r); | |
518 | ||
519 | r = sd_bus_message_close_container(m); | |
520 | ||
521 | } else if (streq(field, "RuntimeDirectory")) { | |
522 | const char *p; | |
523 | ||
524 | r = sd_bus_message_open_container(m, 'v', "as"); | |
525 | if (r < 0) | |
526 | return bus_log_create_error(r); | |
527 | ||
528 | r = sd_bus_message_open_container(m, 'a', "s"); | |
529 | if (r < 0) | |
530 | return bus_log_create_error(r); | |
531 | ||
532 | p = eq; | |
533 | ||
534 | for (;;) { | |
535 | _cleanup_free_ char *word = NULL; | |
536 | ||
537 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
538 | if (r < 0) | |
539 | return log_error_errno(r, "Failed to parse %s value %s", field, eq); | |
540 | ||
541 | if (r == 0) | |
542 | break; | |
543 | ||
544 | r = sd_bus_message_append_basic(m, 's', word); | |
545 | if (r < 0) | |
546 | return bus_log_create_error(r); | |
547 | } | |
548 | ||
549 | r = sd_bus_message_close_container(m); | |
550 | if (r < 0) | |
551 | return bus_log_create_error(r); | |
552 | ||
553 | r = sd_bus_message_close_container(m); | |
554 | ||
555 | } else { | |
556 | log_error("Unknown assignment %s.", assignment); | |
557 | return -EINVAL; | |
558 | } | |
559 | ||
560 | finish: | |
561 | if (r < 0) | |
562 | return bus_log_create_error(r); | |
563 | ||
564 | r = sd_bus_message_close_container(m); | |
565 | if (r < 0) | |
566 | return bus_log_create_error(r); | |
567 | ||
568 | return 0; | |
569 | } | |
570 | ||
571 | typedef struct BusWaitForJobs { | |
572 | sd_bus *bus; | |
573 | Set *jobs; | |
574 | ||
575 | char *name; | |
576 | char *result; | |
577 | ||
578 | sd_bus_slot *slot_job_removed; | |
579 | sd_bus_slot *slot_disconnected; | |
580 | } BusWaitForJobs; | |
581 | ||
582 | static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
583 | assert(m); | |
584 | ||
585 | log_error("Warning! D-Bus connection terminated."); | |
586 | sd_bus_close(sd_bus_message_get_bus(m)); | |
587 | ||
588 | return 0; | |
589 | } | |
590 | ||
591 | static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
592 | const char *path, *unit, *result; | |
593 | BusWaitForJobs *d = userdata; | |
594 | uint32_t id; | |
595 | char *found; | |
596 | int r; | |
597 | ||
598 | assert(m); | |
599 | assert(d); | |
600 | ||
601 | r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); | |
602 | if (r < 0) { | |
603 | bus_log_parse_error(r); | |
604 | return 0; | |
605 | } | |
606 | ||
607 | found = set_remove(d->jobs, (char*) path); | |
608 | if (!found) | |
609 | return 0; | |
610 | ||
611 | free(found); | |
612 | ||
613 | if (!isempty(result)) | |
614 | d->result = strdup(result); | |
615 | ||
616 | if (!isempty(unit)) | |
617 | d->name = strdup(unit); | |
618 | ||
619 | return 0; | |
620 | } | |
621 | ||
622 | void bus_wait_for_jobs_free(BusWaitForJobs *d) { | |
623 | if (!d) | |
624 | return; | |
625 | ||
626 | set_free_free(d->jobs); | |
627 | ||
628 | sd_bus_slot_unref(d->slot_disconnected); | |
629 | sd_bus_slot_unref(d->slot_job_removed); | |
630 | ||
631 | sd_bus_unref(d->bus); | |
632 | ||
633 | free(d->name); | |
634 | free(d->result); | |
635 | ||
636 | free(d); | |
637 | } | |
638 | ||
639 | int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { | |
640 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; | |
641 | int r; | |
642 | ||
643 | assert(bus); | |
644 | assert(ret); | |
645 | ||
646 | d = new0(BusWaitForJobs, 1); | |
647 | if (!d) | |
648 | return -ENOMEM; | |
649 | ||
650 | d->bus = sd_bus_ref(bus); | |
651 | ||
652 | /* When we are a bus client we match by sender. Direct | |
653 | * connections OTOH have no initialized sender field, and | |
654 | * hence we ignore the sender then */ | |
655 | r = sd_bus_add_match( | |
656 | bus, | |
657 | &d->slot_job_removed, | |
658 | bus->bus_client ? | |
659 | "type='signal'," | |
660 | "sender='org.freedesktop.systemd1'," | |
661 | "interface='org.freedesktop.systemd1.Manager'," | |
662 | "member='JobRemoved'," | |
663 | "path='/org/freedesktop/systemd1'" : | |
664 | "type='signal'," | |
665 | "interface='org.freedesktop.systemd1.Manager'," | |
666 | "member='JobRemoved'," | |
667 | "path='/org/freedesktop/systemd1'", | |
668 | match_job_removed, d); | |
669 | if (r < 0) | |
670 | return r; | |
671 | ||
672 | r = sd_bus_add_match( | |
673 | bus, | |
674 | &d->slot_disconnected, | |
675 | "type='signal'," | |
676 | "sender='org.freedesktop.DBus.Local'," | |
677 | "interface='org.freedesktop.DBus.Local'," | |
678 | "member='Disconnected'", | |
679 | match_disconnected, d); | |
680 | if (r < 0) | |
681 | return r; | |
682 | ||
683 | *ret = d; | |
684 | d = NULL; | |
685 | ||
686 | return 0; | |
687 | } | |
688 | ||
689 | static int bus_process_wait(sd_bus *bus) { | |
690 | int r; | |
691 | ||
692 | for (;;) { | |
693 | r = sd_bus_process(bus, NULL); | |
694 | if (r < 0) | |
695 | return r; | |
696 | if (r > 0) | |
697 | return 0; | |
698 | ||
699 | r = sd_bus_wait(bus, (uint64_t) -1); | |
700 | if (r < 0) | |
701 | return r; | |
702 | } | |
703 | } | |
704 | ||
705 | static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { | |
706 | _cleanup_free_ char *dbus_path = NULL; | |
707 | ||
708 | assert(d); | |
709 | assert(d->name); | |
710 | assert(result); | |
711 | ||
712 | dbus_path = unit_dbus_path_from_name(d->name); | |
713 | if (!dbus_path) | |
714 | return -ENOMEM; | |
715 | ||
716 | return sd_bus_get_property_string(d->bus, | |
717 | "org.freedesktop.systemd1", | |
718 | dbus_path, | |
719 | "org.freedesktop.systemd1.Service", | |
720 | "Result", | |
721 | NULL, | |
722 | result); | |
723 | } | |
724 | ||
725 | static const struct { | |
726 | const char *result, *explanation; | |
727 | } explanations [] = { | |
0b2de9d9 | 728 | { "resources", "of unavailable resources or another system error" }, |
20b16441 LP |
729 | { "timeout", "a timeout was exceeded" }, |
730 | { "exit-code", "the control process exited with error code" }, | |
731 | { "signal", "a fatal signal was delivered to the control process" }, | |
732 | { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, | |
733 | { "watchdog", "the service failed to send watchdog ping" }, | |
734 | { "start-limit", "start of the service was attempted too often" } | |
735 | }; | |
736 | ||
737 | static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) { | |
738 | _cleanup_free_ char *service_shell_quoted = NULL; | |
739 | const char *systemctl = "systemctl", *journalctl = "journalctl"; | |
740 | ||
741 | assert(service); | |
742 | ||
743 | service_shell_quoted = shell_maybe_quote(service); | |
744 | ||
745 | if (extra_args && extra_args[1]) { | |
746 | _cleanup_free_ char *t; | |
747 | ||
748 | t = strv_join((char**) extra_args, " "); | |
749 | systemctl = strjoina("systemctl ", t ? : "<args>"); | |
750 | journalctl = strjoina("journalctl ", t ? : "<args>"); | |
751 | } | |
752 | ||
753 | if (!isempty(result)) { | |
754 | unsigned i; | |
755 | ||
756 | for (i = 0; i < ELEMENTSOF(explanations); ++i) | |
757 | if (streq(result, explanations[i].result)) | |
758 | break; | |
759 | ||
760 | if (i < ELEMENTSOF(explanations)) { | |
761 | log_error("Job for %s failed because %s.\n" | |
762 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
763 | service, | |
764 | explanations[i].explanation, | |
765 | systemctl, | |
766 | service_shell_quoted ?: "<service>", | |
767 | journalctl); | |
768 | goto finish; | |
769 | } | |
770 | } | |
771 | ||
772 | log_error("Job for %s failed.\n" | |
773 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
774 | service, | |
775 | systemctl, | |
776 | service_shell_quoted ?: "<service>", | |
777 | journalctl); | |
778 | ||
779 | finish: | |
780 | /* For some results maybe additional explanation is required */ | |
781 | if (streq_ptr(result, "start-limit")) | |
782 | log_info("To force a start use \"%1$s reset-failed %2$s\"\n" | |
783 | "followed by \"%1$s start %2$s\" again.", | |
784 | systemctl, | |
785 | service_shell_quoted ?: "<service>"); | |
786 | } | |
787 | ||
788 | static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
789 | int r = 0; | |
790 | ||
791 | assert(d->result); | |
792 | ||
793 | if (!quiet) { | |
794 | if (streq(d->result, "canceled")) | |
795 | log_error("Job for %s canceled.", strna(d->name)); | |
796 | else if (streq(d->result, "timeout")) | |
797 | log_error("Job for %s timed out.", strna(d->name)); | |
798 | else if (streq(d->result, "dependency")) | |
799 | log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); | |
800 | else if (streq(d->result, "invalid")) | |
801 | log_error("%s is not active, cannot reload.", strna(d->name)); | |
802 | else if (streq(d->result, "assert")) | |
803 | log_error("Assertion failed on job for %s.", strna(d->name)); | |
804 | else if (streq(d->result, "unsupported")) | |
805 | log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); | |
806 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { | |
807 | if (d->name) { | |
808 | int q; | |
809 | _cleanup_free_ char *result = NULL; | |
810 | ||
811 | q = bus_job_get_service_result(d, &result); | |
812 | if (q < 0) | |
813 | log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); | |
814 | ||
815 | log_job_error_with_service_result(d->name, result, extra_args); | |
816 | } else | |
817 | log_error("Job failed. See \"journalctl -xe\" for details."); | |
818 | } | |
819 | } | |
820 | ||
821 | if (streq(d->result, "canceled")) | |
822 | r = -ECANCELED; | |
823 | else if (streq(d->result, "timeout")) | |
824 | r = -ETIME; | |
825 | else if (streq(d->result, "dependency")) | |
826 | r = -EIO; | |
827 | else if (streq(d->result, "invalid")) | |
828 | r = -ENOEXEC; | |
829 | else if (streq(d->result, "assert")) | |
830 | r = -EPROTO; | |
831 | else if (streq(d->result, "unsupported")) | |
832 | r = -EOPNOTSUPP; | |
833 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) | |
834 | r = -EIO; | |
835 | ||
836 | return r; | |
837 | } | |
838 | ||
839 | int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
840 | int r = 0; | |
841 | ||
842 | assert(d); | |
843 | ||
844 | while (!set_isempty(d->jobs)) { | |
845 | int q; | |
846 | ||
847 | q = bus_process_wait(d->bus); | |
848 | if (q < 0) | |
849 | return log_error_errno(q, "Failed to wait for response: %m"); | |
850 | ||
851 | if (d->result) { | |
852 | q = check_wait_response(d, quiet, extra_args); | |
853 | /* Return the first error as it is most likely to be | |
854 | * meaningful. */ | |
855 | if (q < 0 && r == 0) | |
856 | r = q; | |
857 | ||
858 | log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); | |
859 | } | |
860 | ||
861 | d->name = mfree(d->name); | |
862 | d->result = mfree(d->result); | |
863 | } | |
864 | ||
865 | return r; | |
866 | } | |
867 | ||
868 | int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { | |
869 | int r; | |
870 | ||
871 | assert(d); | |
872 | ||
873 | r = set_ensure_allocated(&d->jobs, &string_hash_ops); | |
874 | if (r < 0) | |
875 | return r; | |
876 | ||
877 | return set_put_strdup(d->jobs, path); | |
878 | } | |
879 | ||
880 | int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { | |
881 | int r; | |
882 | ||
883 | r = bus_wait_for_jobs_add(d, path); | |
884 | if (r < 0) | |
885 | return log_oom(); | |
886 | ||
887 | return bus_wait_for_jobs(d, quiet, NULL); | |
888 | } | |
889 | ||
890 | int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { | |
891 | const char *type, *path, *source; | |
892 | int r; | |
893 | ||
acc0269c CH |
894 | /* changes is dereferenced when calling unit_file_dump_changes() later, |
895 | * so we have to make sure this is not NULL. */ | |
896 | assert(changes); | |
897 | assert(n_changes); | |
898 | ||
20b16441 LP |
899 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); |
900 | if (r < 0) | |
901 | return bus_log_parse_error(r); | |
902 | ||
903 | while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { | |
904 | /* We expect only "success" changes to be sent over the bus. | |
905 | Hence, reject anything negative. */ | |
906 | UnitFileChangeType ch = unit_file_change_type_from_string(type); | |
907 | ||
908 | if (ch < 0) { | |
909 | log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path); | |
910 | continue; | |
911 | } | |
912 | ||
913 | r = unit_file_changes_add(changes, n_changes, ch, path, source); | |
914 | if (r < 0) | |
915 | return r; | |
916 | } | |
917 | if (r < 0) | |
918 | return bus_log_parse_error(r); | |
919 | ||
920 | r = sd_bus_message_exit_container(m); | |
921 | if (r < 0) | |
922 | return bus_log_parse_error(r); | |
923 | ||
924 | unit_file_dump_changes(0, NULL, *changes, *n_changes, false); | |
925 | return 0; | |
926 | } | |
927 | ||
291d565a LP |
928 | struct CGroupInfo { |
929 | char *cgroup_path; | |
930 | bool is_const; /* If false, cgroup_path should be free()'d */ | |
931 | ||
932 | Hashmap *pids; /* PID → process name */ | |
933 | bool done; | |
934 | ||
935 | struct CGroupInfo *parent; | |
936 | LIST_FIELDS(struct CGroupInfo, siblings); | |
937 | LIST_HEAD(struct CGroupInfo, children); | |
938 | size_t n_children; | |
939 | }; | |
940 | ||
941 | static bool IS_ROOT(const char *p) { | |
942 | return isempty(p) || streq(p, "/"); | |
943 | } | |
944 | ||
945 | static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) { | |
946 | struct CGroupInfo *parent = NULL, *cg; | |
947 | int r; | |
948 | ||
949 | assert(cgroups); | |
950 | assert(ret); | |
951 | ||
952 | if (IS_ROOT(path)) | |
953 | path = "/"; | |
954 | ||
955 | cg = hashmap_get(cgroups, path); | |
956 | if (cg) { | |
957 | *ret = cg; | |
958 | return 0; | |
959 | } | |
960 | ||
961 | if (!IS_ROOT(path)) { | |
962 | const char *e, *pp; | |
963 | ||
964 | e = strrchr(path, '/'); | |
965 | if (!e) | |
966 | return -EINVAL; | |
967 | ||
968 | pp = strndupa(path, e - path); | |
969 | if (!pp) | |
970 | return -ENOMEM; | |
971 | ||
972 | r = add_cgroup(cgroups, pp, false, &parent); | |
973 | if (r < 0) | |
974 | return r; | |
975 | } | |
976 | ||
977 | cg = new0(struct CGroupInfo, 1); | |
978 | if (!cg) | |
979 | return -ENOMEM; | |
980 | ||
981 | if (is_const) | |
982 | cg->cgroup_path = (char*) path; | |
983 | else { | |
984 | cg->cgroup_path = strdup(path); | |
985 | if (!cg->cgroup_path) { | |
986 | free(cg); | |
987 | return -ENOMEM; | |
988 | } | |
989 | } | |
990 | ||
991 | cg->is_const = is_const; | |
992 | cg->parent = parent; | |
993 | ||
994 | r = hashmap_put(cgroups, cg->cgroup_path, cg); | |
995 | if (r < 0) { | |
996 | if (!is_const) | |
997 | free(cg->cgroup_path); | |
998 | free(cg); | |
999 | return r; | |
1000 | } | |
1001 | ||
1002 | if (parent) { | |
1003 | LIST_PREPEND(siblings, parent->children, cg); | |
1004 | parent->n_children++; | |
1005 | } | |
1006 | ||
1007 | *ret = cg; | |
1008 | return 1; | |
1009 | } | |
1010 | ||
1011 | static int add_process( | |
1012 | Hashmap *cgroups, | |
1013 | const char *path, | |
1014 | pid_t pid, | |
1015 | const char *name) { | |
1016 | ||
1017 | struct CGroupInfo *cg; | |
1018 | int r; | |
1019 | ||
1020 | assert(cgroups); | |
1021 | assert(name); | |
1022 | assert(pid > 0); | |
1023 | ||
1024 | r = add_cgroup(cgroups, path, true, &cg); | |
1025 | if (r < 0) | |
1026 | return r; | |
1027 | ||
1028 | r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops); | |
1029 | if (r < 0) | |
1030 | return r; | |
1031 | ||
1032 | return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name); | |
1033 | } | |
1034 | ||
1035 | static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) { | |
1036 | assert(cgroups); | |
1037 | assert(cg); | |
1038 | ||
1039 | while (cg->children) | |
1040 | remove_cgroup(cgroups, cg->children); | |
1041 | ||
1042 | hashmap_remove(cgroups, cg->cgroup_path); | |
1043 | ||
1044 | if (!cg->is_const) | |
1045 | free(cg->cgroup_path); | |
1046 | ||
1047 | hashmap_free(cg->pids); | |
1048 | ||
1049 | if (cg->parent) | |
1050 | LIST_REMOVE(siblings, cg->parent->children, cg); | |
1051 | ||
1052 | free(cg); | |
1053 | } | |
1054 | ||
1055 | static int cgroup_info_compare_func(const void *a, const void *b) { | |
1056 | const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b; | |
1057 | ||
1058 | assert(x); | |
1059 | assert(y); | |
1060 | ||
1061 | return strcmp(x->cgroup_path, y->cgroup_path); | |
1062 | } | |
1063 | ||
1064 | static int dump_processes( | |
1065 | Hashmap *cgroups, | |
1066 | const char *cgroup_path, | |
1067 | const char *prefix, | |
1068 | unsigned n_columns, | |
1069 | OutputFlags flags) { | |
1070 | ||
1071 | struct CGroupInfo *cg; | |
1072 | int r; | |
1073 | ||
1074 | assert(prefix); | |
1075 | ||
1076 | if (IS_ROOT(cgroup_path)) | |
1077 | cgroup_path = "/"; | |
1078 | ||
1079 | cg = hashmap_get(cgroups, cgroup_path); | |
1080 | if (!cg) | |
1081 | return 0; | |
1082 | ||
1083 | if (!hashmap_isempty(cg->pids)) { | |
1084 | const char *name; | |
1085 | size_t n = 0, i; | |
1086 | pid_t *pids; | |
1087 | void *pidp; | |
1088 | Iterator j; | |
1089 | int width; | |
1090 | ||
1091 | /* Order processes by their PID */ | |
1092 | pids = newa(pid_t, hashmap_size(cg->pids)); | |
1093 | ||
1094 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) | |
1095 | pids[n++] = PTR_TO_PID(pidp); | |
1096 | ||
1097 | assert(n == hashmap_size(cg->pids)); | |
1098 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1099 | ||
1100 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1101 | ||
1102 | for (i = 0; i < n; i++) { | |
1103 | _cleanup_free_ char *e = NULL; | |
1104 | const char *special; | |
1105 | bool more; | |
1106 | ||
1107 | name = hashmap_get(cg->pids, PID_TO_PTR(pids[i])); | |
1108 | assert(name); | |
1109 | ||
1110 | if (n_columns != 0) { | |
1111 | unsigned k; | |
1112 | ||
1113 | k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1114 | ||
1115 | e = ellipsize(name, k, 100); | |
1116 | if (e) | |
1117 | name = e; | |
1118 | } | |
1119 | ||
1120 | more = i+1 < n || cg->children; | |
323b7dc9 | 1121 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1122 | |
1123 | fprintf(stdout, "%s%s%*"PID_PRI" %s\n", | |
1124 | prefix, | |
1125 | special, | |
1126 | width, pids[i], | |
1127 | name); | |
1128 | } | |
1129 | } | |
1130 | ||
1131 | if (cg->children) { | |
1132 | struct CGroupInfo **children, *child; | |
1133 | size_t n = 0, i; | |
1134 | ||
1135 | /* Order subcgroups by their name */ | |
1136 | children = newa(struct CGroupInfo*, cg->n_children); | |
1137 | LIST_FOREACH(siblings, child, cg->children) | |
1138 | children[n++] = child; | |
1139 | assert(n == cg->n_children); | |
1140 | qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func); | |
1141 | ||
7351ded5 IL |
1142 | if (n_columns != 0) |
1143 | n_columns = MAX(LESS_BY(n_columns, 2U), 20U); | |
291d565a LP |
1144 | |
1145 | for (i = 0; i < n; i++) { | |
1146 | _cleanup_free_ char *pp = NULL; | |
1147 | const char *name, *special; | |
1148 | bool more; | |
1149 | ||
1150 | child = children[i]; | |
1151 | ||
1152 | name = strrchr(child->cgroup_path, '/'); | |
1153 | if (!name) | |
1154 | return -EINVAL; | |
1155 | name++; | |
1156 | ||
1157 | more = i+1 < n; | |
323b7dc9 | 1158 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1159 | |
1160 | fputs(prefix, stdout); | |
1161 | fputs(special, stdout); | |
1162 | fputs(name, stdout); | |
1163 | fputc('\n', stdout); | |
1164 | ||
323b7dc9 | 1165 | special = special_glyph(more ? TREE_VERTICAL : TREE_SPACE); |
291d565a LP |
1166 | |
1167 | pp = strappend(prefix, special); | |
1168 | if (!pp) | |
1169 | return -ENOMEM; | |
1170 | ||
1171 | r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags); | |
1172 | if (r < 0) | |
1173 | return r; | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | cg->done = true; | |
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | static int dump_extra_processes( | |
1182 | Hashmap *cgroups, | |
1183 | const char *prefix, | |
1184 | unsigned n_columns, | |
1185 | OutputFlags flags) { | |
1186 | ||
1187 | _cleanup_free_ pid_t *pids = NULL; | |
1188 | _cleanup_hashmap_free_ Hashmap *names = NULL; | |
1189 | struct CGroupInfo *cg; | |
1190 | size_t n_allocated = 0, n = 0, k; | |
1191 | Iterator i; | |
1192 | int width, r; | |
1193 | ||
1194 | /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as | |
1195 | * combined, sorted, linear list. */ | |
1196 | ||
1197 | HASHMAP_FOREACH(cg, cgroups, i) { | |
1198 | const char *name; | |
1199 | void *pidp; | |
1200 | Iterator j; | |
1201 | ||
1202 | if (cg->done) | |
1203 | continue; | |
1204 | ||
1205 | if (hashmap_isempty(cg->pids)) | |
1206 | continue; | |
1207 | ||
1208 | r = hashmap_ensure_allocated(&names, &trivial_hash_ops); | |
1209 | if (r < 0) | |
1210 | return r; | |
1211 | ||
1212 | if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids))) | |
1213 | return -ENOMEM; | |
1214 | ||
1215 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) { | |
1216 | pids[n++] = PTR_TO_PID(pidp); | |
1217 | ||
1218 | r = hashmap_put(names, pidp, (void*) name); | |
1219 | if (r < 0) | |
1220 | return r; | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | if (n == 0) | |
1225 | return 0; | |
1226 | ||
1227 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1228 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1229 | ||
1230 | for (k = 0; k < n; k++) { | |
1231 | _cleanup_free_ char *e = NULL; | |
1232 | const char *name; | |
1233 | ||
1234 | name = hashmap_get(names, PID_TO_PTR(pids[k])); | |
1235 | assert(name); | |
1236 | ||
1237 | if (n_columns != 0) { | |
1238 | unsigned z; | |
1239 | ||
1240 | z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1241 | ||
1242 | e = ellipsize(name, z, 100); | |
1243 | if (e) | |
1244 | name = e; | |
1245 | } | |
1246 | ||
1247 | fprintf(stdout, "%s%s %*" PID_PRI " %s\n", | |
1248 | prefix, | |
323b7dc9 | 1249 | special_glyph(TRIANGULAR_BULLET), |
291d565a LP |
1250 | width, pids[k], |
1251 | name); | |
1252 | } | |
1253 | ||
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | int unit_show_processes( | |
1258 | sd_bus *bus, | |
1259 | const char *unit, | |
1260 | const char *cgroup_path, | |
1261 | const char *prefix, | |
1262 | unsigned n_columns, | |
1263 | OutputFlags flags, | |
1264 | sd_bus_error *error) { | |
1265 | ||
1266 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1267 | Hashmap *cgroups = NULL; | |
1268 | struct CGroupInfo *cg; | |
1269 | int r; | |
1270 | ||
1271 | assert(bus); | |
1272 | assert(unit); | |
1273 | ||
1274 | if (flags & OUTPUT_FULL_WIDTH) | |
1275 | n_columns = 0; | |
1276 | else if (n_columns <= 0) | |
1277 | n_columns = columns(); | |
1278 | ||
1279 | prefix = strempty(prefix); | |
1280 | ||
1281 | r = sd_bus_call_method( | |
1282 | bus, | |
1283 | "org.freedesktop.systemd1", | |
1284 | "/org/freedesktop/systemd1", | |
1285 | "org.freedesktop.systemd1.Manager", | |
1286 | "GetUnitProcesses", | |
1287 | error, | |
1288 | &reply, | |
1289 | "s", | |
1290 | unit); | |
1291 | if (r < 0) | |
1292 | return r; | |
1293 | ||
1294 | cgroups = hashmap_new(&string_hash_ops); | |
1295 | if (!cgroups) | |
1296 | return -ENOMEM; | |
1297 | ||
1298 | r = sd_bus_message_enter_container(reply, 'a', "(sus)"); | |
1299 | if (r < 0) | |
1300 | goto finish; | |
1301 | ||
1302 | for (;;) { | |
1303 | const char *path = NULL, *name = NULL; | |
1304 | uint32_t pid; | |
1305 | ||
1306 | r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name); | |
1307 | if (r < 0) | |
1308 | goto finish; | |
1309 | if (r == 0) | |
1310 | break; | |
1311 | ||
1312 | r = add_process(cgroups, path, pid, name); | |
1313 | if (r < 0) | |
1314 | goto finish; | |
1315 | } | |
1316 | ||
1317 | r = sd_bus_message_exit_container(reply); | |
1318 | if (r < 0) | |
1319 | goto finish; | |
1320 | ||
1321 | r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags); | |
1322 | if (r < 0) | |
1323 | goto finish; | |
1324 | ||
1325 | r = dump_extra_processes(cgroups, prefix, n_columns, flags); | |
1326 | ||
1327 | finish: | |
1328 | while ((cg = hashmap_first(cgroups))) | |
1329 | remove_cgroup(cgroups, cg); | |
1330 | ||
1331 | hashmap_free(cgroups); | |
1332 | ||
1333 | return r; | |
1334 | } |