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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" | |
83555251 | 30 | #include "mount-util.h" |
add00535 | 31 | #include "nsflags.h" |
291d565a LP |
32 | #include "parse-util.h" |
33 | #include "path-util.h" | |
34 | #include "process-util.h" | |
35 | #include "rlimit-util.h" | |
36 | #include "signal-util.h" | |
37 | #include "string-util.h" | |
38 | #include "syslog-util.h" | |
39 | #include "terminal-util.h" | |
40 | #include "utf8.h" | |
41 | #include "util.h" | |
42 | ||
20b16441 LP |
43 | int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) { |
44 | assert(message); | |
45 | assert(u); | |
46 | ||
47 | u->machine = NULL; | |
48 | ||
49 | return sd_bus_message_read( | |
50 | message, | |
51 | "(ssssssouso)", | |
52 | &u->id, | |
53 | &u->description, | |
54 | &u->load_state, | |
55 | &u->active_state, | |
56 | &u->sub_state, | |
57 | &u->following, | |
58 | &u->unit_path, | |
59 | &u->job_id, | |
60 | &u->job_type, | |
61 | &u->job_path); | |
62 | } | |
63 | ||
64 | int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) { | |
65 | const char *eq, *field; | |
289188ca | 66 | UnitDependency dep; |
20b16441 LP |
67 | int r, rl; |
68 | ||
69 | assert(m); | |
70 | assert(assignment); | |
71 | ||
72 | eq = strchr(assignment, '='); | |
73 | if (!eq) { | |
74 | log_error("Not an assignment: %s", assignment); | |
75 | return -EINVAL; | |
76 | } | |
77 | ||
78 | r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); | |
79 | if (r < 0) | |
80 | return bus_log_create_error(r); | |
81 | ||
82 | field = strndupa(assignment, eq - assignment); | |
83 | eq++; | |
84 | ||
85 | if (streq(field, "CPUQuota")) { | |
86 | ||
87 | if (isempty(eq)) | |
88 | r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", USEC_INFINITY); | |
9184ca48 | 89 | else { |
5124866d | 90 | r = parse_percent_unbounded(eq); |
9184ca48 LP |
91 | if (r <= 0) { |
92 | log_error_errno(r, "CPU quota '%s' invalid.", eq); | |
20b16441 LP |
93 | return -EINVAL; |
94 | } | |
95 | ||
9184ca48 | 96 | r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) r * USEC_PER_SEC / 100U); |
20b16441 LP |
97 | } |
98 | ||
99 | goto finish; | |
100 | ||
101 | } else if (streq(field, "EnvironmentFile")) { | |
102 | ||
103 | r = sd_bus_message_append(m, "sv", "EnvironmentFiles", "a(sb)", 1, | |
104 | eq[0] == '-' ? eq + 1 : eq, | |
105 | eq[0] == '-'); | |
106 | goto finish; | |
107 | ||
108 | } else if (STR_IN_SET(field, "AccuracySec", "RandomizedDelaySec", "RuntimeMaxSec")) { | |
109 | char *n; | |
110 | usec_t t; | |
111 | size_t l; | |
9184ca48 | 112 | |
20b16441 LP |
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; | |
d58d600e LP |
126 | |
127 | } else if (STR_IN_SET(field, "MemoryLow", "MemoryHigh", "MemoryMax", "MemoryLimit")) { | |
128 | uint64_t bytes; | |
129 | ||
130 | if (isempty(eq) || streq(eq, "infinity")) | |
131 | bytes = CGROUP_LIMIT_MAX; | |
132 | else { | |
133 | r = parse_percent(eq); | |
134 | if (r >= 0) { | |
135 | char *n; | |
136 | ||
137 | /* When this is a percentage we'll convert this into a relative value in the range | |
f7903e8d | 138 | * 0…UINT32_MAX and pass it in the MemoryLowScale property (and related |
d58d600e LP |
139 | * ones). This way the physical memory size can be determined server-side */ |
140 | ||
f7903e8d | 141 | n = strjoina(field, "Scale"); |
d58d600e LP |
142 | r = sd_bus_message_append(m, "sv", n, "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U)); |
143 | goto finish; | |
144 | ||
145 | } else { | |
146 | r = parse_size(eq, 1024, &bytes); | |
147 | if (r < 0) | |
148 | return log_error_errno(r, "Failed to parse bytes specification %s", assignment); | |
149 | } | |
150 | } | |
151 | ||
152 | r = sd_bus_message_append(m, "sv", field, "t", bytes); | |
153 | goto finish; | |
83f8e808 LP |
154 | } else if (streq(field, "TasksMax")) { |
155 | uint64_t t; | |
156 | ||
157 | if (isempty(eq) || streq(eq, "infinity")) | |
158 | t = (uint64_t) -1; | |
159 | else { | |
160 | r = parse_percent(eq); | |
161 | if (r >= 0) { | |
162 | r = sd_bus_message_append(m, "sv", "TasksMaxScale", "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U)); | |
163 | goto finish; | |
164 | } else { | |
165 | r = safe_atou64(eq, &t); | |
166 | if (r < 0) | |
167 | return log_error_errno(r, "Failed to parse maximum tasks specification %s", assignment); | |
168 | } | |
169 | ||
170 | } | |
171 | ||
172 | r = sd_bus_message_append(m, "sv", "TasksMax", "t", t); | |
173 | goto finish; | |
20b16441 LP |
174 | } |
175 | ||
176 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); | |
177 | if (r < 0) | |
178 | return bus_log_create_error(r); | |
179 | ||
180 | rl = rlimit_from_string(field); | |
181 | if (rl >= 0) { | |
182 | const char *sn; | |
183 | struct rlimit l; | |
184 | ||
185 | r = rlimit_parse(rl, eq, &l); | |
186 | if (r < 0) | |
187 | return log_error_errno(r, "Failed to parse resource limit: %s", eq); | |
188 | ||
189 | r = sd_bus_message_append(m, "v", "t", l.rlim_max); | |
190 | if (r < 0) | |
191 | return bus_log_create_error(r); | |
192 | ||
193 | r = sd_bus_message_close_container(m); | |
194 | if (r < 0) | |
195 | return bus_log_create_error(r); | |
196 | ||
197 | r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); | |
198 | if (r < 0) | |
199 | return bus_log_create_error(r); | |
200 | ||
201 | sn = strjoina(field, "Soft"); | |
202 | r = sd_bus_message_append(m, "sv", sn, "t", l.rlim_cur); | |
203 | ||
204 | } else if (STR_IN_SET(field, | |
29206d46 LP |
205 | "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", "TasksAccounting", |
206 | "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies", | |
207 | "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit", | |
d251207d | 208 | "PrivateTmp", "PrivateDevices", "PrivateNetwork", "PrivateUsers", "NoNewPrivileges", |
29206d46 | 209 | "SyslogLevelPrefix", "Delegate", "RemainAfterElapse", "MemoryDenyWriteExecute", |
502d704e | 210 | "RestrictRealtime", "DynamicUser", "RemoveIPC", "ProtectKernelTunables", |
5d997827 | 211 | "ProtectKernelModules", "ProtectControlGroups", "MountAPIVFS")) { |
20b16441 LP |
212 | |
213 | r = parse_boolean(eq); | |
214 | if (r < 0) | |
215 | return log_error_errno(r, "Failed to parse boolean assignment %s.", assignment); | |
216 | ||
217 | r = sd_bus_message_append(m, "v", "b", r); | |
218 | ||
66ebf6c0 TH |
219 | } else if (STR_IN_SET(field, "CPUWeight", "StartupCPUWeight")) { |
220 | uint64_t u; | |
221 | ||
222 | r = cg_weight_parse(eq, &u); | |
223 | if (r < 0) { | |
224 | log_error("Failed to parse %s value %s.", field, eq); | |
225 | return -EINVAL; | |
226 | } | |
227 | ||
228 | r = sd_bus_message_append(m, "v", "t", u); | |
229 | ||
20b16441 LP |
230 | } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) { |
231 | uint64_t u; | |
232 | ||
233 | r = cg_cpu_shares_parse(eq, &u); | |
234 | if (r < 0) { | |
235 | log_error("Failed to parse %s value %s.", field, eq); | |
236 | return -EINVAL; | |
237 | } | |
238 | ||
239 | r = sd_bus_message_append(m, "v", "t", u); | |
240 | ||
13c31542 TH |
241 | } else if (STR_IN_SET(field, "IOWeight", "StartupIOWeight")) { |
242 | uint64_t u; | |
243 | ||
244 | r = cg_weight_parse(eq, &u); | |
245 | if (r < 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", "t", u); | |
251 | ||
20b16441 LP |
252 | } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { |
253 | uint64_t u; | |
254 | ||
3fdf9ad7 | 255 | r = cg_blkio_weight_parse(eq, &u); |
20b16441 LP |
256 | if (r < 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", "t", u); | |
262 | ||
263 | } else if (STR_IN_SET(field, | |
264 | "User", "Group", "DevicePolicy", "KillMode", | |
265 | "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", | |
266 | "StandardInput", "StandardOutput", "StandardError", | |
267 | "Description", "Slice", "Type", "WorkingDirectory", | |
268 | "RootDirectory", "SyslogIdentifier", "ProtectSystem", | |
915e6d16 | 269 | "ProtectHome", "SELinuxContext", "Restart", "RootImage")) |
20b16441 LP |
270 | r = sd_bus_message_append(m, "v", "s", eq); |
271 | ||
272 | else if (streq(field, "SyslogLevel")) { | |
273 | int level; | |
274 | ||
275 | level = log_level_from_string(eq); | |
276 | if (level < 0) { | |
277 | log_error("Failed to parse %s value %s.", field, eq); | |
278 | return -EINVAL; | |
279 | } | |
280 | ||
281 | r = sd_bus_message_append(m, "v", "i", level); | |
282 | ||
283 | } else if (streq(field, "SyslogFacility")) { | |
284 | int facility; | |
285 | ||
286 | facility = log_facility_unshifted_from_string(eq); | |
287 | if (facility < 0) { | |
288 | log_error("Failed to parse %s value %s.", field, eq); | |
289 | return -EINVAL; | |
290 | } | |
291 | ||
292 | r = sd_bus_message_append(m, "v", "i", facility); | |
293 | ||
294 | } else if (streq(field, "DeviceAllow")) { | |
295 | ||
296 | if (isempty(eq)) | |
297 | r = sd_bus_message_append(m, "v", "a(ss)", 0); | |
298 | else { | |
299 | const char *path, *rwm, *e; | |
300 | ||
301 | e = strchr(eq, ' '); | |
302 | if (e) { | |
303 | path = strndupa(eq, e - eq); | |
304 | rwm = e+1; | |
305 | } else { | |
306 | path = eq; | |
307 | rwm = ""; | |
308 | } | |
309 | ||
3ccb8862 | 310 | if (!is_deviceallow_pattern(path)) { |
20b16441 LP |
311 | log_error("%s is not a device file in /dev.", path); |
312 | return -EINVAL; | |
313 | } | |
314 | ||
315 | r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); | |
316 | } | |
317 | ||
9be57249 | 318 | } else if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { |
20b16441 LP |
319 | |
320 | if (isempty(eq)) | |
321 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
322 | else { | |
323 | const char *path, *bandwidth, *e; | |
324 | uint64_t bytes; | |
325 | ||
326 | e = strchr(eq, ' '); | |
327 | if (e) { | |
328 | path = strndupa(eq, e - eq); | |
329 | bandwidth = e+1; | |
330 | } else { | |
331 | log_error("Failed to parse %s value %s.", field, eq); | |
332 | return -EINVAL; | |
333 | } | |
334 | ||
335 | if (!path_startswith(path, "/dev")) { | |
336 | log_error("%s is not a device file in /dev.", path); | |
337 | return -EINVAL; | |
338 | } | |
339 | ||
e57c9ce1 | 340 | if (streq(bandwidth, "infinity")) { |
13c31542 TH |
341 | bytes = CGROUP_LIMIT_MAX; |
342 | } else { | |
343 | r = parse_size(bandwidth, 1000, &bytes); | |
344 | if (r < 0) { | |
345 | log_error("Failed to parse byte value %s.", bandwidth); | |
346 | return -EINVAL; | |
347 | } | |
20b16441 LP |
348 | } |
349 | ||
350 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); | |
351 | } | |
352 | ||
13c31542 | 353 | } else if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) { |
20b16441 LP |
354 | |
355 | if (isempty(eq)) | |
356 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
357 | else { | |
358 | const char *path, *weight, *e; | |
359 | uint64_t u; | |
360 | ||
361 | e = strchr(eq, ' '); | |
362 | if (e) { | |
363 | path = strndupa(eq, e - eq); | |
364 | weight = e+1; | |
365 | } else { | |
366 | log_error("Failed to parse %s value %s.", field, eq); | |
367 | return -EINVAL; | |
368 | } | |
369 | ||
370 | if (!path_startswith(path, "/dev")) { | |
371 | log_error("%s is not a device file in /dev.", path); | |
372 | return -EINVAL; | |
373 | } | |
374 | ||
375 | r = safe_atou64(weight, &u); | |
376 | if (r < 0) { | |
377 | log_error("Failed to parse %s value %s.", field, weight); | |
378 | return -EINVAL; | |
379 | } | |
096a4d53 | 380 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, u); |
20b16441 LP |
381 | } |
382 | ||
383 | } else if (streq(field, "Nice")) { | |
41bf0590 | 384 | int n; |
20b16441 | 385 | |
41bf0590 LP |
386 | r = parse_nice(eq, &n); |
387 | if (r < 0) | |
388 | return log_error_errno(r, "Failed to parse nice value: %s", eq); | |
20b16441 | 389 | |
41bf0590 | 390 | r = sd_bus_message_append(m, "v", "i", (int32_t) n); |
20b16441 LP |
391 | |
392 | } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) { | |
393 | const char *p; | |
394 | ||
395 | r = sd_bus_message_open_container(m, 'v', "as"); | |
396 | if (r < 0) | |
397 | return bus_log_create_error(r); | |
398 | ||
399 | r = sd_bus_message_open_container(m, 'a', "s"); | |
400 | if (r < 0) | |
401 | return bus_log_create_error(r); | |
402 | ||
c58bd76a | 403 | for (p = eq;;) { |
20b16441 LP |
404 | _cleanup_free_ char *word = NULL; |
405 | ||
406 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); | |
407 | if (r < 0) { | |
408 | log_error("Failed to parse Environment value %s", eq); | |
409 | return -EINVAL; | |
410 | } | |
411 | if (r == 0) | |
412 | break; | |
413 | ||
414 | if (streq(field, "Environment")) { | |
415 | if (!env_assignment_is_valid(word)) { | |
416 | log_error("Invalid environment assignment: %s", word); | |
417 | return -EINVAL; | |
418 | } | |
419 | } else { /* PassEnvironment */ | |
420 | if (!env_name_is_valid(word)) { | |
421 | log_error("Invalid environment variable name: %s", word); | |
422 | return -EINVAL; | |
423 | } | |
424 | } | |
425 | ||
426 | r = sd_bus_message_append_basic(m, 's', word); | |
427 | if (r < 0) | |
428 | return bus_log_create_error(r); | |
429 | } | |
430 | ||
431 | r = sd_bus_message_close_container(m); | |
432 | if (r < 0) | |
433 | return bus_log_create_error(r); | |
434 | ||
435 | r = sd_bus_message_close_container(m); | |
436 | ||
437 | } else if (streq(field, "KillSignal")) { | |
438 | int sig; | |
439 | ||
440 | sig = signal_from_string_try_harder(eq); | |
441 | if (sig < 0) { | |
442 | log_error("Failed to parse %s value %s.", field, eq); | |
443 | return -EINVAL; | |
444 | } | |
445 | ||
446 | r = sd_bus_message_append(m, "v", "i", sig); | |
447 | ||
448 | } else if (streq(field, "TimerSlackNSec")) { | |
449 | nsec_t n; | |
450 | ||
451 | r = parse_nsec(eq, &n); | |
452 | if (r < 0) { | |
453 | log_error("Failed to parse %s value %s", field, eq); | |
454 | return -EINVAL; | |
455 | } | |
456 | ||
457 | r = sd_bus_message_append(m, "v", "t", n); | |
458 | } else if (streq(field, "OOMScoreAdjust")) { | |
459 | int oa; | |
460 | ||
461 | r = safe_atoi(eq, &oa); | |
462 | if (r < 0) { | |
463 | log_error("Failed to parse %s value %s", field, eq); | |
464 | return -EINVAL; | |
465 | } | |
466 | ||
467 | if (!oom_score_adjust_is_valid(oa)) { | |
468 | log_error("OOM score adjust value out of range"); | |
469 | return -EINVAL; | |
470 | } | |
471 | ||
472 | r = sd_bus_message_append(m, "v", "i", oa); | |
2a624c36 AP |
473 | } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories", |
474 | "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) { | |
20b16441 LP |
475 | const char *p; |
476 | ||
477 | r = sd_bus_message_open_container(m, 'v', "as"); | |
478 | if (r < 0) | |
479 | return bus_log_create_error(r); | |
480 | ||
481 | r = sd_bus_message_open_container(m, 'a', "s"); | |
482 | if (r < 0) | |
483 | return bus_log_create_error(r); | |
484 | ||
c58bd76a | 485 | for (p = eq;;) { |
20b16441 | 486 | _cleanup_free_ char *word = NULL; |
20b7a007 | 487 | size_t offset; |
20b16441 LP |
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] == '-'; | |
20b7a007 LP |
503 | offset += word[offset] == '+'; |
504 | ||
20b16441 LP |
505 | if (!path_is_absolute(word + offset)) { |
506 | log_error("Failed to parse %s value %s", field, eq); | |
507 | return -EINVAL; | |
508 | } | |
509 | ||
510 | path_kill_slashes(word + offset); | |
511 | ||
512 | r = sd_bus_message_append_basic(m, 's', word); | |
513 | if (r < 0) | |
514 | return bus_log_create_error(r); | |
515 | } | |
516 | ||
517 | r = sd_bus_message_close_container(m); | |
518 | if (r < 0) | |
519 | return bus_log_create_error(r); | |
520 | ||
521 | r = sd_bus_message_close_container(m); | |
522 | ||
523 | } else if (streq(field, "RuntimeDirectory")) { | |
524 | const char *p; | |
525 | ||
526 | r = sd_bus_message_open_container(m, 'v', "as"); | |
527 | if (r < 0) | |
528 | return bus_log_create_error(r); | |
529 | ||
530 | r = sd_bus_message_open_container(m, 'a', "s"); | |
531 | if (r < 0) | |
532 | return bus_log_create_error(r); | |
533 | ||
c58bd76a | 534 | for (p = eq;;) { |
20b16441 LP |
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 | ||
add00535 LP |
555 | } else if (streq(field, "RestrictNamespaces")) { |
556 | bool invert = false; | |
557 | uint64_t flags = 0; | |
558 | ||
559 | if (eq[0] == '~') { | |
560 | invert = true; | |
561 | eq++; | |
562 | } | |
563 | ||
564 | r = parse_boolean(eq); | |
565 | if (r > 0) | |
566 | flags = 0; | |
567 | else if (r == 0) | |
568 | flags = NAMESPACE_FLAGS_ALL; | |
569 | else { | |
570 | r = namespace_flag_from_string_many(eq, &flags); | |
571 | if (r < 0) | |
572 | return log_error_errno(r, "Failed to parse %s value %s.", field, eq); | |
573 | } | |
574 | ||
575 | if (invert) | |
576 | flags = (~flags) & NAMESPACE_FLAGS_ALL; | |
577 | ||
578 | r = sd_bus_message_append(m, "v", "t", flags); | |
289188ca LP |
579 | } else if ((dep = unit_dependency_from_string(field)) >= 0) |
580 | r = sd_bus_message_append(m, "v", "as", 1, eq); | |
83555251 LP |
581 | else if (streq(field, "MountFlags")) { |
582 | unsigned long f; | |
583 | ||
c7383828 ZJS |
584 | r = mount_propagation_flags_from_string(eq, &f); |
585 | if (r < 0) | |
586 | return log_error_errno(r, "Failed to parse mount propagation flags: %s", eq); | |
83555251 | 587 | |
b9e2d822 | 588 | r = sd_bus_message_append(m, "v", "t", (uint64_t) f); |
d2d6c096 LP |
589 | } else if (STR_IN_SET(field, "BindPaths", "BindReadOnlyPaths")) { |
590 | const char *p = eq; | |
591 | ||
592 | r = sd_bus_message_open_container(m, 'v', "a(ssbt)"); | |
593 | if (r < 0) | |
594 | return r; | |
595 | ||
596 | r = sd_bus_message_open_container(m, 'a', "(ssbt)"); | |
597 | if (r < 0) | |
598 | return r; | |
599 | ||
600 | for (;;) { | |
601 | _cleanup_free_ char *source = NULL, *destination = NULL; | |
602 | char *s = NULL, *d = NULL; | |
603 | bool ignore_enoent = false; | |
604 | uint64_t flags = MS_REC; | |
605 | ||
606 | r = extract_first_word(&p, &source, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS); | |
607 | if (r < 0) | |
608 | return log_error_errno(r, "Failed to parse argument: %m"); | |
609 | if (r == 0) | |
610 | break; | |
611 | ||
612 | s = source; | |
613 | if (s[0] == '-') { | |
614 | ignore_enoent = true; | |
615 | s++; | |
616 | } | |
617 | ||
618 | if (p && p[-1] == ':') { | |
619 | r = extract_first_word(&p, &destination, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS); | |
620 | if (r < 0) | |
621 | return log_error_errno(r, "Failed to parse argument: %m"); | |
622 | if (r == 0) { | |
623 | log_error("Missing argument after ':': %s", eq); | |
624 | return -EINVAL; | |
625 | } | |
626 | ||
627 | d = destination; | |
628 | ||
629 | if (p && p[-1] == ':') { | |
630 | _cleanup_free_ char *options = NULL; | |
631 | ||
632 | r = extract_first_word(&p, &options, NULL, EXTRACT_QUOTES); | |
633 | if (r < 0) | |
634 | return log_error_errno(r, "Failed to parse argument: %m"); | |
635 | ||
636 | if (isempty(options) || streq(options, "rbind")) | |
637 | flags = MS_REC; | |
638 | else if (streq(options, "norbind")) | |
639 | flags = 0; | |
640 | else { | |
641 | log_error("Unknown options: %s", eq); | |
642 | return -EINVAL; | |
643 | } | |
644 | } | |
645 | } else | |
646 | d = s; | |
647 | ||
648 | ||
649 | r = sd_bus_message_append(m, "(ssbt)", s, d, ignore_enoent, flags); | |
650 | if (r < 0) | |
651 | return r; | |
652 | } | |
653 | ||
654 | r = sd_bus_message_close_container(m); | |
655 | if (r < 0) | |
656 | return r; | |
657 | ||
658 | r = sd_bus_message_close_container(m); | |
83555251 | 659 | } else { |
20b16441 LP |
660 | log_error("Unknown assignment %s.", assignment); |
661 | return -EINVAL; | |
662 | } | |
663 | ||
664 | finish: | |
665 | if (r < 0) | |
666 | return bus_log_create_error(r); | |
667 | ||
668 | r = sd_bus_message_close_container(m); | |
669 | if (r < 0) | |
670 | return bus_log_create_error(r); | |
671 | ||
672 | return 0; | |
673 | } | |
674 | ||
8673cf13 LP |
675 | int bus_append_unit_property_assignment_many(sd_bus_message *m, char **l) { |
676 | char **i; | |
677 | int r; | |
678 | ||
679 | assert(m); | |
680 | ||
681 | STRV_FOREACH(i, l) { | |
682 | r = bus_append_unit_property_assignment(m, *i); | |
683 | if (r < 0) | |
684 | return r; | |
685 | } | |
686 | ||
687 | return 0; | |
688 | } | |
689 | ||
20b16441 LP |
690 | typedef struct BusWaitForJobs { |
691 | sd_bus *bus; | |
692 | Set *jobs; | |
693 | ||
694 | char *name; | |
695 | char *result; | |
696 | ||
697 | sd_bus_slot *slot_job_removed; | |
698 | sd_bus_slot *slot_disconnected; | |
699 | } BusWaitForJobs; | |
700 | ||
701 | static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
702 | assert(m); | |
703 | ||
704 | log_error("Warning! D-Bus connection terminated."); | |
705 | sd_bus_close(sd_bus_message_get_bus(m)); | |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
710 | static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { | |
711 | const char *path, *unit, *result; | |
712 | BusWaitForJobs *d = userdata; | |
713 | uint32_t id; | |
714 | char *found; | |
715 | int r; | |
716 | ||
717 | assert(m); | |
718 | assert(d); | |
719 | ||
720 | r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); | |
721 | if (r < 0) { | |
722 | bus_log_parse_error(r); | |
723 | return 0; | |
724 | } | |
725 | ||
726 | found = set_remove(d->jobs, (char*) path); | |
727 | if (!found) | |
728 | return 0; | |
729 | ||
730 | free(found); | |
731 | ||
732 | if (!isempty(result)) | |
733 | d->result = strdup(result); | |
734 | ||
735 | if (!isempty(unit)) | |
736 | d->name = strdup(unit); | |
737 | ||
738 | return 0; | |
739 | } | |
740 | ||
741 | void bus_wait_for_jobs_free(BusWaitForJobs *d) { | |
742 | if (!d) | |
743 | return; | |
744 | ||
745 | set_free_free(d->jobs); | |
746 | ||
747 | sd_bus_slot_unref(d->slot_disconnected); | |
748 | sd_bus_slot_unref(d->slot_job_removed); | |
749 | ||
750 | sd_bus_unref(d->bus); | |
751 | ||
752 | free(d->name); | |
753 | free(d->result); | |
754 | ||
755 | free(d); | |
756 | } | |
757 | ||
758 | int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { | |
759 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; | |
760 | int r; | |
761 | ||
762 | assert(bus); | |
763 | assert(ret); | |
764 | ||
765 | d = new0(BusWaitForJobs, 1); | |
766 | if (!d) | |
767 | return -ENOMEM; | |
768 | ||
769 | d->bus = sd_bus_ref(bus); | |
770 | ||
771 | /* When we are a bus client we match by sender. Direct | |
772 | * connections OTOH have no initialized sender field, and | |
773 | * hence we ignore the sender then */ | |
774 | r = sd_bus_add_match( | |
775 | bus, | |
776 | &d->slot_job_removed, | |
777 | bus->bus_client ? | |
778 | "type='signal'," | |
779 | "sender='org.freedesktop.systemd1'," | |
780 | "interface='org.freedesktop.systemd1.Manager'," | |
781 | "member='JobRemoved'," | |
782 | "path='/org/freedesktop/systemd1'" : | |
783 | "type='signal'," | |
784 | "interface='org.freedesktop.systemd1.Manager'," | |
785 | "member='JobRemoved'," | |
786 | "path='/org/freedesktop/systemd1'", | |
787 | match_job_removed, d); | |
788 | if (r < 0) | |
789 | return r; | |
790 | ||
791 | r = sd_bus_add_match( | |
792 | bus, | |
793 | &d->slot_disconnected, | |
794 | "type='signal'," | |
795 | "sender='org.freedesktop.DBus.Local'," | |
796 | "interface='org.freedesktop.DBus.Local'," | |
797 | "member='Disconnected'", | |
798 | match_disconnected, d); | |
799 | if (r < 0) | |
800 | return r; | |
801 | ||
802 | *ret = d; | |
803 | d = NULL; | |
804 | ||
805 | return 0; | |
806 | } | |
807 | ||
808 | static int bus_process_wait(sd_bus *bus) { | |
809 | int r; | |
810 | ||
811 | for (;;) { | |
812 | r = sd_bus_process(bus, NULL); | |
813 | if (r < 0) | |
814 | return r; | |
815 | if (r > 0) | |
816 | return 0; | |
817 | ||
818 | r = sd_bus_wait(bus, (uint64_t) -1); | |
819 | if (r < 0) | |
820 | return r; | |
821 | } | |
822 | } | |
823 | ||
824 | static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { | |
825 | _cleanup_free_ char *dbus_path = NULL; | |
826 | ||
827 | assert(d); | |
828 | assert(d->name); | |
829 | assert(result); | |
830 | ||
831 | dbus_path = unit_dbus_path_from_name(d->name); | |
832 | if (!dbus_path) | |
833 | return -ENOMEM; | |
834 | ||
835 | return sd_bus_get_property_string(d->bus, | |
836 | "org.freedesktop.systemd1", | |
837 | dbus_path, | |
838 | "org.freedesktop.systemd1.Service", | |
839 | "Result", | |
840 | NULL, | |
841 | result); | |
842 | } | |
843 | ||
844 | static const struct { | |
845 | const char *result, *explanation; | |
846 | } explanations [] = { | |
0b2de9d9 | 847 | { "resources", "of unavailable resources or another system error" }, |
7ed0a4c5 | 848 | { "protocol", "the service did not take the steps required by its unit configuration" }, |
20b16441 LP |
849 | { "timeout", "a timeout was exceeded" }, |
850 | { "exit-code", "the control process exited with error code" }, | |
851 | { "signal", "a fatal signal was delivered to the control process" }, | |
852 | { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, | |
853 | { "watchdog", "the service failed to send watchdog ping" }, | |
854 | { "start-limit", "start of the service was attempted too often" } | |
855 | }; | |
856 | ||
857 | static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) { | |
858 | _cleanup_free_ char *service_shell_quoted = NULL; | |
859 | const char *systemctl = "systemctl", *journalctl = "journalctl"; | |
860 | ||
861 | assert(service); | |
862 | ||
863 | service_shell_quoted = shell_maybe_quote(service); | |
864 | ||
865 | if (extra_args && extra_args[1]) { | |
866 | _cleanup_free_ char *t; | |
867 | ||
868 | t = strv_join((char**) extra_args, " "); | |
869 | systemctl = strjoina("systemctl ", t ? : "<args>"); | |
870 | journalctl = strjoina("journalctl ", t ? : "<args>"); | |
871 | } | |
872 | ||
873 | if (!isempty(result)) { | |
874 | unsigned i; | |
875 | ||
876 | for (i = 0; i < ELEMENTSOF(explanations); ++i) | |
877 | if (streq(result, explanations[i].result)) | |
878 | break; | |
879 | ||
880 | if (i < ELEMENTSOF(explanations)) { | |
881 | log_error("Job for %s failed because %s.\n" | |
882 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
883 | service, | |
884 | explanations[i].explanation, | |
885 | systemctl, | |
886 | service_shell_quoted ?: "<service>", | |
887 | journalctl); | |
888 | goto finish; | |
889 | } | |
890 | } | |
891 | ||
892 | log_error("Job for %s failed.\n" | |
893 | "See \"%s status %s\" and \"%s -xe\" for details.\n", | |
894 | service, | |
895 | systemctl, | |
896 | service_shell_quoted ?: "<service>", | |
897 | journalctl); | |
898 | ||
899 | finish: | |
900 | /* For some results maybe additional explanation is required */ | |
901 | if (streq_ptr(result, "start-limit")) | |
902 | log_info("To force a start use \"%1$s reset-failed %2$s\"\n" | |
903 | "followed by \"%1$s start %2$s\" again.", | |
904 | systemctl, | |
905 | service_shell_quoted ?: "<service>"); | |
906 | } | |
907 | ||
908 | static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
909 | int r = 0; | |
910 | ||
911 | assert(d->result); | |
912 | ||
913 | if (!quiet) { | |
914 | if (streq(d->result, "canceled")) | |
915 | log_error("Job for %s canceled.", strna(d->name)); | |
916 | else if (streq(d->result, "timeout")) | |
917 | log_error("Job for %s timed out.", strna(d->name)); | |
918 | else if (streq(d->result, "dependency")) | |
919 | log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); | |
920 | else if (streq(d->result, "invalid")) | |
921 | log_error("%s is not active, cannot reload.", strna(d->name)); | |
922 | else if (streq(d->result, "assert")) | |
923 | log_error("Assertion failed on job for %s.", strna(d->name)); | |
924 | else if (streq(d->result, "unsupported")) | |
925 | log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); | |
c5a97ed1 LP |
926 | else if (streq(d->result, "collected")) |
927 | log_error("Queued job for %s was garbage collected.", strna(d->name)); | |
20b16441 LP |
928 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { |
929 | if (d->name) { | |
930 | int q; | |
931 | _cleanup_free_ char *result = NULL; | |
932 | ||
933 | q = bus_job_get_service_result(d, &result); | |
934 | if (q < 0) | |
935 | log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); | |
936 | ||
937 | log_job_error_with_service_result(d->name, result, extra_args); | |
938 | } else | |
939 | log_error("Job failed. See \"journalctl -xe\" for details."); | |
940 | } | |
941 | } | |
942 | ||
c5a97ed1 | 943 | if (STR_IN_SET(d->result, "canceled", "collected")) |
20b16441 LP |
944 | r = -ECANCELED; |
945 | else if (streq(d->result, "timeout")) | |
946 | r = -ETIME; | |
947 | else if (streq(d->result, "dependency")) | |
948 | r = -EIO; | |
949 | else if (streq(d->result, "invalid")) | |
950 | r = -ENOEXEC; | |
951 | else if (streq(d->result, "assert")) | |
952 | r = -EPROTO; | |
953 | else if (streq(d->result, "unsupported")) | |
954 | r = -EOPNOTSUPP; | |
955 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) | |
956 | r = -EIO; | |
957 | ||
958 | return r; | |
959 | } | |
960 | ||
961 | int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { | |
962 | int r = 0; | |
963 | ||
964 | assert(d); | |
965 | ||
966 | while (!set_isempty(d->jobs)) { | |
967 | int q; | |
968 | ||
969 | q = bus_process_wait(d->bus); | |
970 | if (q < 0) | |
971 | return log_error_errno(q, "Failed to wait for response: %m"); | |
972 | ||
973 | if (d->result) { | |
974 | q = check_wait_response(d, quiet, extra_args); | |
975 | /* Return the first error as it is most likely to be | |
976 | * meaningful. */ | |
977 | if (q < 0 && r == 0) | |
978 | r = q; | |
979 | ||
980 | log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); | |
981 | } | |
982 | ||
983 | d->name = mfree(d->name); | |
984 | d->result = mfree(d->result); | |
985 | } | |
986 | ||
987 | return r; | |
988 | } | |
989 | ||
990 | int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { | |
991 | int r; | |
992 | ||
993 | assert(d); | |
994 | ||
995 | r = set_ensure_allocated(&d->jobs, &string_hash_ops); | |
996 | if (r < 0) | |
997 | return r; | |
998 | ||
999 | return set_put_strdup(d->jobs, path); | |
1000 | } | |
1001 | ||
1002 | int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { | |
1003 | int r; | |
1004 | ||
1005 | r = bus_wait_for_jobs_add(d, path); | |
1006 | if (r < 0) | |
1007 | return log_oom(); | |
1008 | ||
1009 | return bus_wait_for_jobs(d, quiet, NULL); | |
1010 | } | |
1011 | ||
1012 | int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { | |
1013 | const char *type, *path, *source; | |
1014 | int r; | |
1015 | ||
acc0269c CH |
1016 | /* changes is dereferenced when calling unit_file_dump_changes() later, |
1017 | * so we have to make sure this is not NULL. */ | |
1018 | assert(changes); | |
1019 | assert(n_changes); | |
1020 | ||
20b16441 LP |
1021 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); |
1022 | if (r < 0) | |
1023 | return bus_log_parse_error(r); | |
1024 | ||
1025 | while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { | |
1026 | /* We expect only "success" changes to be sent over the bus. | |
1027 | Hence, reject anything negative. */ | |
1028 | UnitFileChangeType ch = unit_file_change_type_from_string(type); | |
1029 | ||
1030 | if (ch < 0) { | |
1031 | log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path); | |
1032 | continue; | |
1033 | } | |
1034 | ||
1035 | r = unit_file_changes_add(changes, n_changes, ch, path, source); | |
1036 | if (r < 0) | |
1037 | return r; | |
1038 | } | |
1039 | if (r < 0) | |
1040 | return bus_log_parse_error(r); | |
1041 | ||
1042 | r = sd_bus_message_exit_container(m); | |
1043 | if (r < 0) | |
1044 | return bus_log_parse_error(r); | |
1045 | ||
1046 | unit_file_dump_changes(0, NULL, *changes, *n_changes, false); | |
1047 | return 0; | |
1048 | } | |
1049 | ||
291d565a LP |
1050 | struct CGroupInfo { |
1051 | char *cgroup_path; | |
1052 | bool is_const; /* If false, cgroup_path should be free()'d */ | |
1053 | ||
1054 | Hashmap *pids; /* PID → process name */ | |
1055 | bool done; | |
1056 | ||
1057 | struct CGroupInfo *parent; | |
1058 | LIST_FIELDS(struct CGroupInfo, siblings); | |
1059 | LIST_HEAD(struct CGroupInfo, children); | |
1060 | size_t n_children; | |
1061 | }; | |
1062 | ||
1063 | static bool IS_ROOT(const char *p) { | |
1064 | return isempty(p) || streq(p, "/"); | |
1065 | } | |
1066 | ||
1067 | static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) { | |
1068 | struct CGroupInfo *parent = NULL, *cg; | |
1069 | int r; | |
1070 | ||
1071 | assert(cgroups); | |
1072 | assert(ret); | |
1073 | ||
1074 | if (IS_ROOT(path)) | |
1075 | path = "/"; | |
1076 | ||
1077 | cg = hashmap_get(cgroups, path); | |
1078 | if (cg) { | |
1079 | *ret = cg; | |
1080 | return 0; | |
1081 | } | |
1082 | ||
1083 | if (!IS_ROOT(path)) { | |
1084 | const char *e, *pp; | |
1085 | ||
1086 | e = strrchr(path, '/'); | |
1087 | if (!e) | |
1088 | return -EINVAL; | |
1089 | ||
1090 | pp = strndupa(path, e - path); | |
1091 | if (!pp) | |
1092 | return -ENOMEM; | |
1093 | ||
1094 | r = add_cgroup(cgroups, pp, false, &parent); | |
1095 | if (r < 0) | |
1096 | return r; | |
1097 | } | |
1098 | ||
1099 | cg = new0(struct CGroupInfo, 1); | |
1100 | if (!cg) | |
1101 | return -ENOMEM; | |
1102 | ||
1103 | if (is_const) | |
1104 | cg->cgroup_path = (char*) path; | |
1105 | else { | |
1106 | cg->cgroup_path = strdup(path); | |
1107 | if (!cg->cgroup_path) { | |
1108 | free(cg); | |
1109 | return -ENOMEM; | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | cg->is_const = is_const; | |
1114 | cg->parent = parent; | |
1115 | ||
1116 | r = hashmap_put(cgroups, cg->cgroup_path, cg); | |
1117 | if (r < 0) { | |
1118 | if (!is_const) | |
1119 | free(cg->cgroup_path); | |
1120 | free(cg); | |
1121 | return r; | |
1122 | } | |
1123 | ||
1124 | if (parent) { | |
1125 | LIST_PREPEND(siblings, parent->children, cg); | |
1126 | parent->n_children++; | |
1127 | } | |
1128 | ||
1129 | *ret = cg; | |
1130 | return 1; | |
1131 | } | |
1132 | ||
1133 | static int add_process( | |
1134 | Hashmap *cgroups, | |
1135 | const char *path, | |
1136 | pid_t pid, | |
1137 | const char *name) { | |
1138 | ||
1139 | struct CGroupInfo *cg; | |
1140 | int r; | |
1141 | ||
1142 | assert(cgroups); | |
1143 | assert(name); | |
1144 | assert(pid > 0); | |
1145 | ||
1146 | r = add_cgroup(cgroups, path, true, &cg); | |
1147 | if (r < 0) | |
1148 | return r; | |
1149 | ||
1150 | r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops); | |
1151 | if (r < 0) | |
1152 | return r; | |
1153 | ||
1154 | return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name); | |
1155 | } | |
1156 | ||
1157 | static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) { | |
1158 | assert(cgroups); | |
1159 | assert(cg); | |
1160 | ||
1161 | while (cg->children) | |
1162 | remove_cgroup(cgroups, cg->children); | |
1163 | ||
1164 | hashmap_remove(cgroups, cg->cgroup_path); | |
1165 | ||
1166 | if (!cg->is_const) | |
1167 | free(cg->cgroup_path); | |
1168 | ||
1169 | hashmap_free(cg->pids); | |
1170 | ||
1171 | if (cg->parent) | |
1172 | LIST_REMOVE(siblings, cg->parent->children, cg); | |
1173 | ||
1174 | free(cg); | |
1175 | } | |
1176 | ||
1177 | static int cgroup_info_compare_func(const void *a, const void *b) { | |
1178 | const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b; | |
1179 | ||
1180 | assert(x); | |
1181 | assert(y); | |
1182 | ||
1183 | return strcmp(x->cgroup_path, y->cgroup_path); | |
1184 | } | |
1185 | ||
1186 | static int dump_processes( | |
1187 | Hashmap *cgroups, | |
1188 | const char *cgroup_path, | |
1189 | const char *prefix, | |
1190 | unsigned n_columns, | |
1191 | OutputFlags flags) { | |
1192 | ||
1193 | struct CGroupInfo *cg; | |
1194 | int r; | |
1195 | ||
1196 | assert(prefix); | |
1197 | ||
1198 | if (IS_ROOT(cgroup_path)) | |
1199 | cgroup_path = "/"; | |
1200 | ||
1201 | cg = hashmap_get(cgroups, cgroup_path); | |
1202 | if (!cg) | |
1203 | return 0; | |
1204 | ||
1205 | if (!hashmap_isempty(cg->pids)) { | |
1206 | const char *name; | |
1207 | size_t n = 0, i; | |
1208 | pid_t *pids; | |
1209 | void *pidp; | |
1210 | Iterator j; | |
1211 | int width; | |
1212 | ||
1213 | /* Order processes by their PID */ | |
1214 | pids = newa(pid_t, hashmap_size(cg->pids)); | |
1215 | ||
1216 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) | |
1217 | pids[n++] = PTR_TO_PID(pidp); | |
1218 | ||
1219 | assert(n == hashmap_size(cg->pids)); | |
1220 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1221 | ||
1222 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1223 | ||
1224 | for (i = 0; i < n; i++) { | |
1225 | _cleanup_free_ char *e = NULL; | |
1226 | const char *special; | |
1227 | bool more; | |
1228 | ||
1229 | name = hashmap_get(cg->pids, PID_TO_PTR(pids[i])); | |
1230 | assert(name); | |
1231 | ||
1232 | if (n_columns != 0) { | |
1233 | unsigned k; | |
1234 | ||
1235 | k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1236 | ||
1237 | e = ellipsize(name, k, 100); | |
1238 | if (e) | |
1239 | name = e; | |
1240 | } | |
1241 | ||
1242 | more = i+1 < n || cg->children; | |
323b7dc9 | 1243 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1244 | |
1245 | fprintf(stdout, "%s%s%*"PID_PRI" %s\n", | |
1246 | prefix, | |
1247 | special, | |
1248 | width, pids[i], | |
1249 | name); | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | if (cg->children) { | |
1254 | struct CGroupInfo **children, *child; | |
1255 | size_t n = 0, i; | |
1256 | ||
1257 | /* Order subcgroups by their name */ | |
1258 | children = newa(struct CGroupInfo*, cg->n_children); | |
1259 | LIST_FOREACH(siblings, child, cg->children) | |
1260 | children[n++] = child; | |
1261 | assert(n == cg->n_children); | |
1262 | qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func); | |
1263 | ||
7351ded5 IL |
1264 | if (n_columns != 0) |
1265 | n_columns = MAX(LESS_BY(n_columns, 2U), 20U); | |
291d565a LP |
1266 | |
1267 | for (i = 0; i < n; i++) { | |
1268 | _cleanup_free_ char *pp = NULL; | |
1269 | const char *name, *special; | |
1270 | bool more; | |
1271 | ||
1272 | child = children[i]; | |
1273 | ||
1274 | name = strrchr(child->cgroup_path, '/'); | |
1275 | if (!name) | |
1276 | return -EINVAL; | |
1277 | name++; | |
1278 | ||
1279 | more = i+1 < n; | |
323b7dc9 | 1280 | special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT); |
291d565a LP |
1281 | |
1282 | fputs(prefix, stdout); | |
1283 | fputs(special, stdout); | |
1284 | fputs(name, stdout); | |
1285 | fputc('\n', stdout); | |
1286 | ||
323b7dc9 | 1287 | special = special_glyph(more ? TREE_VERTICAL : TREE_SPACE); |
291d565a LP |
1288 | |
1289 | pp = strappend(prefix, special); | |
1290 | if (!pp) | |
1291 | return -ENOMEM; | |
1292 | ||
1293 | r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags); | |
1294 | if (r < 0) | |
1295 | return r; | |
1296 | } | |
1297 | } | |
1298 | ||
1299 | cg->done = true; | |
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | static int dump_extra_processes( | |
1304 | Hashmap *cgroups, | |
1305 | const char *prefix, | |
1306 | unsigned n_columns, | |
1307 | OutputFlags flags) { | |
1308 | ||
1309 | _cleanup_free_ pid_t *pids = NULL; | |
1310 | _cleanup_hashmap_free_ Hashmap *names = NULL; | |
1311 | struct CGroupInfo *cg; | |
1312 | size_t n_allocated = 0, n = 0, k; | |
1313 | Iterator i; | |
1314 | int width, r; | |
1315 | ||
1316 | /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as | |
1317 | * combined, sorted, linear list. */ | |
1318 | ||
1319 | HASHMAP_FOREACH(cg, cgroups, i) { | |
1320 | const char *name; | |
1321 | void *pidp; | |
1322 | Iterator j; | |
1323 | ||
1324 | if (cg->done) | |
1325 | continue; | |
1326 | ||
1327 | if (hashmap_isempty(cg->pids)) | |
1328 | continue; | |
1329 | ||
1330 | r = hashmap_ensure_allocated(&names, &trivial_hash_ops); | |
1331 | if (r < 0) | |
1332 | return r; | |
1333 | ||
1334 | if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids))) | |
1335 | return -ENOMEM; | |
1336 | ||
1337 | HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) { | |
1338 | pids[n++] = PTR_TO_PID(pidp); | |
1339 | ||
1340 | r = hashmap_put(names, pidp, (void*) name); | |
1341 | if (r < 0) | |
1342 | return r; | |
1343 | } | |
1344 | } | |
1345 | ||
1346 | if (n == 0) | |
1347 | return 0; | |
1348 | ||
1349 | qsort_safe(pids, n, sizeof(pid_t), pid_compare_func); | |
1350 | width = DECIMAL_STR_WIDTH(pids[n-1]); | |
1351 | ||
1352 | for (k = 0; k < n; k++) { | |
1353 | _cleanup_free_ char *e = NULL; | |
1354 | const char *name; | |
1355 | ||
1356 | name = hashmap_get(names, PID_TO_PTR(pids[k])); | |
1357 | assert(name); | |
1358 | ||
1359 | if (n_columns != 0) { | |
1360 | unsigned z; | |
1361 | ||
1362 | z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); | |
1363 | ||
1364 | e = ellipsize(name, z, 100); | |
1365 | if (e) | |
1366 | name = e; | |
1367 | } | |
1368 | ||
1369 | fprintf(stdout, "%s%s %*" PID_PRI " %s\n", | |
1370 | prefix, | |
323b7dc9 | 1371 | special_glyph(TRIANGULAR_BULLET), |
291d565a LP |
1372 | width, pids[k], |
1373 | name); | |
1374 | } | |
1375 | ||
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | int unit_show_processes( | |
1380 | sd_bus *bus, | |
1381 | const char *unit, | |
1382 | const char *cgroup_path, | |
1383 | const char *prefix, | |
1384 | unsigned n_columns, | |
1385 | OutputFlags flags, | |
1386 | sd_bus_error *error) { | |
1387 | ||
1388 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1389 | Hashmap *cgroups = NULL; | |
1390 | struct CGroupInfo *cg; | |
1391 | int r; | |
1392 | ||
1393 | assert(bus); | |
1394 | assert(unit); | |
1395 | ||
1396 | if (flags & OUTPUT_FULL_WIDTH) | |
1397 | n_columns = 0; | |
1398 | else if (n_columns <= 0) | |
1399 | n_columns = columns(); | |
1400 | ||
1401 | prefix = strempty(prefix); | |
1402 | ||
1403 | r = sd_bus_call_method( | |
1404 | bus, | |
1405 | "org.freedesktop.systemd1", | |
1406 | "/org/freedesktop/systemd1", | |
1407 | "org.freedesktop.systemd1.Manager", | |
1408 | "GetUnitProcesses", | |
1409 | error, | |
1410 | &reply, | |
1411 | "s", | |
1412 | unit); | |
1413 | if (r < 0) | |
1414 | return r; | |
1415 | ||
1416 | cgroups = hashmap_new(&string_hash_ops); | |
1417 | if (!cgroups) | |
1418 | return -ENOMEM; | |
1419 | ||
1420 | r = sd_bus_message_enter_container(reply, 'a', "(sus)"); | |
1421 | if (r < 0) | |
1422 | goto finish; | |
1423 | ||
1424 | for (;;) { | |
1425 | const char *path = NULL, *name = NULL; | |
1426 | uint32_t pid; | |
1427 | ||
1428 | r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name); | |
1429 | if (r < 0) | |
1430 | goto finish; | |
1431 | if (r == 0) | |
1432 | break; | |
1433 | ||
1434 | r = add_process(cgroups, path, pid, name); | |
1435 | if (r < 0) | |
1436 | goto finish; | |
1437 | } | |
1438 | ||
1439 | r = sd_bus_message_exit_container(reply); | |
1440 | if (r < 0) | |
1441 | goto finish; | |
1442 | ||
1443 | r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags); | |
1444 | if (r < 0) | |
1445 | goto finish; | |
1446 | ||
1447 | r = dump_extra_processes(cgroups, prefix, n_columns, flags); | |
1448 | ||
1449 | finish: | |
1450 | while ((cg = hashmap_first(cgroups))) | |
1451 | remove_cgroup(cgroups, cg); | |
1452 | ||
1453 | hashmap_free(cgroups); | |
1454 | ||
1455 | return r; | |
1456 | } |