]>
Commit | Line | Data |
---|---|---|
1ee306e1 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
23 | #include <string.h> | |
24 | #include <unistd.h> | |
25 | #include <pwd.h> | |
26 | ||
27 | #include <systemd/sd-id128.h> | |
28 | #include <systemd/sd-messages.h> | |
29 | ||
30 | #include "machined.h" | |
31 | #include "dbus-common.h" | |
32 | #include "strv.h" | |
33 | #include "mkdir.h" | |
34 | #include "path-util.h" | |
35 | #include "special.h" | |
36 | #include "sleep-config.h" | |
37 | #include "fileio-label.h" | |
38 | #include "label.h" | |
39 | #include "utf8.h" | |
40 | #include "unit-name.h" | |
41 | #include "bus-errors.h" | |
42 | #include "virt.h" | |
43 | ||
44 | #define BUS_MANAGER_INTERFACE \ | |
6a4e0b13 | 45 | " <interface name=\"org.freedesktop.machine1.Manager\">\n" \ |
1ee306e1 LP |
46 | " <method name=\"GetMachine\">\n" \ |
47 | " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \ | |
48 | " <arg name=\"machine\" type=\"o\" direction=\"out\"/>\n" \ | |
49 | " </method>\n" \ | |
50 | " <method name=\"GetMachineByPID\">\n" \ | |
51 | " <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \ | |
52 | " <arg name=\"machine\" type=\"o\" direction=\"out\"/>\n" \ | |
53 | " </method>\n" \ | |
54 | " <method name=\"ListMachines\">\n" \ | |
55 | " <arg name=\"machines\" type=\"a(ssso)\" direction=\"out\"/>\n" \ | |
56 | " </method>\n" \ | |
57 | " <method name=\"CreateMachine\">\n" \ | |
58 | " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \ | |
59 | " <arg name=\"id\" type=\"ay\" direction=\"in\"/>\n" \ | |
60 | " <arg name=\"service\" type=\"s\" direction=\"in\"/>\n" \ | |
61 | " <arg name=\"class\" type=\"s\" direction=\"in\"/>\n" \ | |
62 | " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \ | |
63 | " <arg name=\"root_directory\" type=\"s\" direction=\"in\"/>\n" \ | |
64 | " <arg name=\"scope_properties\" type=\"a(sv)\" direction=\"in\"/>\n" \ | |
65 | " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \ | |
66 | " </method>\n" \ | |
67 | " <method name=\"KillMachine\">\n" \ | |
68 | " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \ | |
69 | " <arg name=\"who\" type=\"s\" direction=\"in\"/>\n" \ | |
70 | " <arg name=\"signal\" type=\"s\" direction=\"in\"/>\n" \ | |
71 | " </method>\n" \ | |
72 | " <method name=\"TerminateMachine\">\n" \ | |
73 | " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \ | |
74 | " </method>\n" \ | |
75 | " <signal name=\"MachineNew\">\n" \ | |
76 | " <arg name=\"machine\" type=\"s\"/>\n" \ | |
77 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
78 | " </signal>\n" \ | |
79 | " <signal name=\"MachineRemoved\">\n" \ | |
80 | " <arg name=\"machine\" type=\"s\"/>\n" \ | |
81 | " <arg name=\"path\" type=\"o\"/>\n" \ | |
82 | " </signal>\n" \ | |
83 | " </interface>\n" | |
84 | ||
85 | #define INTROSPECTION_BEGIN \ | |
86 | DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \ | |
87 | "<node>\n" \ | |
88 | BUS_MANAGER_INTERFACE \ | |
89 | BUS_PROPERTIES_INTERFACE \ | |
90 | BUS_PEER_INTERFACE \ | |
91 | BUS_INTROSPECTABLE_INTERFACE | |
92 | ||
93 | #define INTROSPECTION_END \ | |
94 | "</node>\n" | |
95 | ||
96 | #define INTERFACES_LIST \ | |
97 | BUS_GENERIC_INTERFACES_LIST \ | |
98 | "org.freedesktop.machine1.Manager\0" | |
99 | ||
100 | static bool valid_machine_name(const char *p) { | |
101 | size_t l; | |
102 | ||
103 | if (!filename_is_safe(p)) | |
104 | return false; | |
105 | ||
106 | if (!ascii_is_valid(p)) | |
107 | return false; | |
108 | ||
109 | l = strlen(p); | |
110 | ||
111 | if (l < 1 || l> 64) | |
112 | return false; | |
113 | ||
114 | return true; | |
115 | } | |
116 | ||
117 | static int bus_manager_create_machine(Manager *manager, DBusMessage *message) { | |
118 | ||
8aec412f | 119 | const char *name, *service, *class, *root_directory; |
1ee306e1 LP |
120 | _cleanup_free_ char *p = NULL; |
121 | DBusMessageIter iter, sub; | |
122 | MachineClass c; | |
123 | uint32_t leader; | |
124 | sd_id128_t id; | |
125 | Machine *m; | |
126 | int n, r; | |
127 | void *v; | |
128 | ||
129 | assert(manager); | |
130 | assert(message); | |
131 | ||
132 | if (!dbus_message_iter_init(message, &iter) || | |
133 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
134 | return -EINVAL; | |
135 | ||
136 | dbus_message_iter_get_basic(&iter, &name); | |
137 | ||
138 | if (!valid_machine_name(name) || | |
139 | !dbus_message_iter_next(&iter) || | |
140 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
141 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_BYTE) | |
142 | return -EINVAL; | |
143 | ||
144 | dbus_message_iter_recurse(&iter, &sub); | |
145 | dbus_message_iter_get_fixed_array(&sub, &v, &n); | |
146 | ||
147 | if (n == 0) | |
148 | id = SD_ID128_NULL; | |
149 | else if (n == 16) | |
150 | memcpy(&id, v, n); | |
151 | else | |
152 | return -EINVAL; | |
153 | ||
154 | if (!dbus_message_iter_next(&iter) || | |
155 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
156 | return -EINVAL; | |
157 | ||
158 | dbus_message_iter_get_basic(&iter, &service); | |
159 | ||
160 | if (!dbus_message_iter_next(&iter) || | |
161 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
162 | return -EINVAL; | |
163 | ||
164 | dbus_message_iter_get_basic(&iter, &class); | |
165 | ||
166 | if (isempty(class)) | |
167 | c = _MACHINE_CLASS_INVALID; | |
168 | else { | |
169 | c = machine_class_from_string(class); | |
170 | if (c < 0) | |
171 | return -EINVAL; | |
172 | } | |
173 | ||
174 | if (!dbus_message_iter_next(&iter) || | |
175 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) | |
176 | return -EINVAL; | |
177 | ||
178 | dbus_message_iter_get_basic(&iter, &leader); | |
179 | if (!dbus_message_iter_next(&iter) || | |
180 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) | |
181 | return -EINVAL; | |
182 | ||
1ee306e1 LP |
183 | dbus_message_iter_get_basic(&iter, &root_directory); |
184 | ||
185 | if (!(isempty(root_directory) || path_is_absolute(root_directory))) | |
186 | return -EINVAL; | |
187 | ||
554604b3 LP |
188 | if (!dbus_message_iter_next(&iter) || |
189 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
190 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) | |
191 | return -EINVAL; | |
192 | ||
193 | dbus_message_iter_recurse(&iter, &sub); | |
194 | ||
1ee306e1 LP |
195 | if (hashmap_get(manager->machines, name)) |
196 | return -EEXIST; | |
197 | ||
198 | if (leader <= 0) { | |
199 | leader = bus_get_unix_process_id(manager->bus, dbus_message_get_sender(message), NULL); | |
200 | if (leader == 0) | |
201 | return -EINVAL; | |
202 | } | |
203 | ||
204 | r = manager_add_machine(manager, name, &m); | |
205 | if (r < 0) | |
206 | goto fail; | |
207 | ||
208 | m->leader = leader; | |
209 | m->class = c; | |
210 | m->id = id; | |
211 | ||
212 | if (!isempty(service)) { | |
213 | m->service = strdup(service); | |
214 | if (!m->service) { | |
215 | r = -ENOMEM; | |
216 | goto fail; | |
217 | } | |
218 | } | |
219 | ||
220 | if (!isempty(root_directory)) { | |
221 | m->root_directory = strdup(root_directory); | |
222 | if (!m->root_directory) { | |
223 | r = -ENOMEM; | |
224 | goto fail; | |
225 | } | |
226 | } | |
227 | ||
554604b3 | 228 | r = machine_start(m, &sub); |
1ee306e1 LP |
229 | if (r < 0) |
230 | goto fail; | |
231 | ||
232 | m->create_message = dbus_message_ref(message); | |
233 | ||
234 | return 0; | |
235 | ||
236 | fail: | |
237 | if (m) | |
238 | machine_add_to_gc_queue(m); | |
239 | ||
240 | return r; | |
241 | } | |
242 | ||
243 | static DBusHandlerResult manager_message_handler( | |
244 | DBusConnection *connection, | |
245 | DBusMessage *message, | |
246 | void *userdata) { | |
247 | ||
248 | Manager *m = userdata; | |
249 | ||
250 | DBusError error; | |
251 | _cleanup_dbus_message_unref_ DBusMessage *reply = NULL; | |
252 | int r; | |
253 | ||
254 | assert(connection); | |
255 | assert(message); | |
256 | assert(m); | |
257 | ||
258 | dbus_error_init(&error); | |
259 | ||
260 | if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "GetMachine")) { | |
261 | Machine *machine; | |
262 | const char *name; | |
263 | char *p; | |
264 | bool b; | |
265 | ||
266 | if (!dbus_message_get_args( | |
267 | message, | |
268 | &error, | |
269 | DBUS_TYPE_STRING, &name, | |
270 | DBUS_TYPE_INVALID)) | |
271 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
272 | ||
273 | machine = hashmap_get(m->machines, name); | |
274 | if (!machine) | |
275 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
276 | ||
277 | reply = dbus_message_new_method_return(message); | |
278 | if (!reply) | |
279 | goto oom; | |
280 | ||
281 | p = machine_bus_path(machine); | |
282 | if (!p) | |
283 | goto oom; | |
284 | ||
285 | b = dbus_message_append_args( | |
286 | reply, | |
287 | DBUS_TYPE_OBJECT_PATH, &p, | |
288 | DBUS_TYPE_INVALID); | |
289 | free(p); | |
290 | ||
291 | if (!b) | |
292 | goto oom; | |
293 | ||
294 | } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "GetMachineByPID")) { | |
295 | uint32_t pid; | |
296 | char *p; | |
297 | Machine *machine; | |
298 | bool b; | |
299 | ||
300 | if (!dbus_message_get_args( | |
301 | message, | |
302 | &error, | |
303 | DBUS_TYPE_UINT32, &pid, | |
304 | DBUS_TYPE_INVALID)) | |
305 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
306 | ||
307 | r = manager_get_machine_by_pid(m, pid, &machine); | |
308 | if (r <= 0) | |
309 | return bus_send_error_reply(connection, message, NULL, r < 0 ? r : -ENOENT); | |
310 | ||
311 | reply = dbus_message_new_method_return(message); | |
312 | if (!reply) | |
313 | goto oom; | |
314 | ||
315 | p = machine_bus_path(machine); | |
316 | if (!p) | |
317 | goto oom; | |
318 | ||
319 | b = dbus_message_append_args( | |
320 | reply, | |
321 | DBUS_TYPE_OBJECT_PATH, &p, | |
322 | DBUS_TYPE_INVALID); | |
323 | free(p); | |
324 | ||
325 | if (!b) | |
326 | goto oom; | |
327 | ||
328 | } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "ListMachines")) { | |
329 | Machine *machine; | |
330 | Iterator i; | |
331 | DBusMessageIter iter, sub; | |
332 | ||
333 | reply = dbus_message_new_method_return(message); | |
334 | if (!reply) | |
335 | goto oom; | |
336 | ||
337 | dbus_message_iter_init_append(reply, &iter); | |
338 | ||
339 | if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssso)", &sub)) | |
340 | goto oom; | |
341 | ||
342 | HASHMAP_FOREACH(machine, m->machines, i) { | |
343 | _cleanup_free_ char *p = NULL; | |
344 | DBusMessageIter sub2; | |
345 | const char *class; | |
346 | ||
347 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2)) | |
348 | goto oom; | |
349 | ||
350 | p = machine_bus_path(machine); | |
351 | if (!p) | |
352 | goto oom; | |
353 | ||
354 | class = strempty(machine_class_to_string(machine->class)); | |
355 | ||
356 | if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &machine->name) || | |
357 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &class) || | |
358 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &machine->service) || | |
359 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) { | |
360 | free(p); | |
361 | goto oom; | |
362 | } | |
363 | ||
364 | if (!dbus_message_iter_close_container(&sub, &sub2)) | |
365 | goto oom; | |
366 | } | |
367 | ||
368 | if (!dbus_message_iter_close_container(&iter, &sub)) | |
369 | goto oom; | |
370 | ||
371 | } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "CreateMachine")) { | |
372 | ||
373 | r = bus_manager_create_machine(m, message); | |
374 | if (r < 0) | |
375 | return bus_send_error_reply(connection, message, NULL, r); | |
376 | ||
377 | } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "KillMachine")) { | |
378 | const char *swho; | |
379 | int32_t signo; | |
380 | KillWho who; | |
381 | const char *name; | |
382 | Machine *machine; | |
383 | ||
384 | if (!dbus_message_get_args( | |
385 | message, | |
386 | &error, | |
387 | DBUS_TYPE_STRING, &name, | |
388 | DBUS_TYPE_STRING, &swho, | |
389 | DBUS_TYPE_INT32, &signo, | |
390 | DBUS_TYPE_INVALID)) | |
391 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
392 | ||
393 | if (isempty(swho)) | |
394 | who = KILL_ALL; | |
395 | else { | |
396 | who = kill_who_from_string(swho); | |
397 | if (who < 0) | |
398 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
399 | } | |
400 | ||
401 | if (signo <= 0 || signo >= _NSIG) | |
402 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
403 | ||
404 | machine = hashmap_get(m->machines, name); | |
405 | if (!machine) | |
406 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
407 | ||
408 | r = machine_kill(machine, who, signo); | |
409 | if (r < 0) | |
410 | return bus_send_error_reply(connection, message, NULL, r); | |
411 | ||
412 | reply = dbus_message_new_method_return(message); | |
413 | if (!reply) | |
414 | goto oom; | |
415 | ||
416 | } else if (dbus_message_is_method_call(message, "org.freedesktop.machine1.Manager", "TerminateMachine")) { | |
417 | const char *name; | |
418 | Machine *machine; | |
419 | ||
420 | if (!dbus_message_get_args( | |
421 | message, | |
422 | &error, | |
423 | DBUS_TYPE_STRING, &name, | |
424 | DBUS_TYPE_INVALID)) | |
425 | return bus_send_error_reply(connection, message, &error, -EINVAL); | |
426 | ||
427 | machine = hashmap_get(m->machines, name); | |
428 | if (!machine) | |
429 | return bus_send_error_reply(connection, message, &error, -ENOENT); | |
430 | ||
431 | r = machine_stop(machine); | |
432 | if (r < 0) | |
433 | return bus_send_error_reply(connection, message, NULL, r); | |
434 | ||
435 | reply = dbus_message_new_method_return(message); | |
436 | if (!reply) | |
437 | goto oom; | |
438 | ||
439 | } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) { | |
440 | char *introspection = NULL; | |
441 | FILE *f; | |
442 | Iterator i; | |
443 | Machine *machine; | |
444 | size_t size; | |
445 | char *p; | |
446 | ||
447 | reply = dbus_message_new_method_return(message); | |
448 | if (!reply) | |
449 | goto oom; | |
450 | ||
451 | /* We roll our own introspection code here, instead of | |
452 | * relying on bus_default_message_handler() because we | |
453 | * need to generate our introspection string | |
454 | * dynamically. */ | |
455 | ||
456 | f = open_memstream(&introspection, &size); | |
457 | if (!f) | |
458 | goto oom; | |
459 | ||
460 | fputs(INTROSPECTION_BEGIN, f); | |
461 | ||
462 | HASHMAP_FOREACH(machine, m->machines, i) { | |
463 | p = bus_path_escape(machine->name); | |
464 | ||
465 | if (p) { | |
466 | fprintf(f, "<node name=\"machine/%s\"/>", p); | |
467 | free(p); | |
468 | } | |
469 | } | |
470 | ||
471 | fputs(INTROSPECTION_END, f); | |
472 | ||
473 | if (ferror(f)) { | |
474 | fclose(f); | |
475 | free(introspection); | |
476 | goto oom; | |
477 | } | |
478 | ||
479 | fclose(f); | |
480 | ||
481 | if (!introspection) | |
482 | goto oom; | |
483 | ||
484 | if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) { | |
485 | free(introspection); | |
486 | goto oom; | |
487 | } | |
488 | ||
489 | free(introspection); | |
490 | } else | |
491 | return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, NULL); | |
492 | ||
493 | if (reply) { | |
494 | if (!bus_maybe_send_reply(connection, message, reply)) | |
495 | goto oom; | |
496 | } | |
497 | ||
498 | return DBUS_HANDLER_RESULT_HANDLED; | |
499 | ||
500 | oom: | |
501 | dbus_error_free(&error); | |
502 | ||
503 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
504 | } | |
505 | ||
506 | const DBusObjectPathVTable bus_manager_vtable = { | |
507 | .message_function = manager_message_handler | |
508 | }; | |
509 | ||
510 | DBusHandlerResult bus_message_filter( | |
511 | DBusConnection *connection, | |
512 | DBusMessage *message, | |
513 | void *userdata) { | |
514 | ||
515 | Manager *m = userdata; | |
516 | DBusError error; | |
517 | ||
518 | assert(m); | |
519 | assert(connection); | |
520 | assert(message); | |
521 | ||
522 | dbus_error_init(&error); | |
523 | ||
524 | log_debug("Got message: %s %s %s", strna(dbus_message_get_sender(message)), strna(dbus_message_get_interface(message)), strna(dbus_message_get_member(message))); | |
525 | ||
526 | if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { | |
527 | const char *path, *result, *unit; | |
528 | Machine *mm; | |
529 | uint32_t id; | |
530 | ||
531 | if (!dbus_message_get_args(message, &error, | |
532 | DBUS_TYPE_UINT32, &id, | |
533 | DBUS_TYPE_OBJECT_PATH, &path, | |
534 | DBUS_TYPE_STRING, &unit, | |
535 | DBUS_TYPE_STRING, &result, | |
536 | DBUS_TYPE_INVALID)) { | |
537 | log_error("Failed to parse JobRemoved message: %s", bus_error_message(&error)); | |
538 | goto finish; | |
539 | } | |
540 | ||
1ee306e1 LP |
541 | mm = hashmap_get(m->machine_units, unit); |
542 | if (mm) { | |
543 | if (streq_ptr(path, mm->scope_job)) { | |
544 | free(mm->scope_job); | |
545 | mm->scope_job = NULL; | |
546 | ||
547 | if (mm->started) { | |
548 | if (streq(result, "done")) | |
549 | machine_send_create_reply(mm, NULL); | |
550 | else { | |
551 | dbus_set_error(&error, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result); | |
552 | machine_send_create_reply(mm, &error); | |
553 | } | |
554 | } | |
cba38758 LP |
555 | |
556 | machine_save(mm); | |
1ee306e1 LP |
557 | } |
558 | ||
559 | machine_add_to_gc_queue(mm); | |
560 | } | |
561 | ||
562 | } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) { | |
563 | ||
564 | _cleanup_dbus_message_unref_ DBusMessage *reply = NULL; | |
565 | _cleanup_free_ char *unit = NULL; | |
566 | const char *path; | |
567 | ||
568 | path = dbus_message_get_path(message); | |
569 | if (!path) | |
570 | goto finish; | |
571 | ||
572 | unit_name_from_dbus_path(path, &unit); | |
573 | if (unit) { | |
574 | Machine *mm; | |
575 | ||
576 | mm = hashmap_get(m->machine_units, unit); | |
577 | if (mm) | |
578 | machine_add_to_gc_queue(mm); | |
579 | } | |
943aca8e LP |
580 | |
581 | } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) { | |
582 | const char *path, *unit; | |
583 | Machine *mm; | |
584 | ||
585 | if (!dbus_message_get_args(message, &error, | |
586 | DBUS_TYPE_STRING, &unit, | |
587 | DBUS_TYPE_OBJECT_PATH, &path, | |
588 | DBUS_TYPE_INVALID)) { | |
589 | log_error("Failed to parse UnitRemoved message: %s", bus_error_message(&error)); | |
590 | goto finish; | |
591 | } | |
592 | ||
593 | mm = hashmap_get(m->machine_units, unit); | |
6797c324 | 594 | if (mm) |
943aca8e | 595 | machine_add_to_gc_queue(mm); |
6797c324 LP |
596 | |
597 | } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "Reloading")) { | |
598 | dbus_bool_t b; | |
599 | ||
600 | if (!dbus_message_get_args(message, &error, | |
601 | DBUS_TYPE_BOOLEAN, &b, | |
602 | DBUS_TYPE_INVALID)) { | |
603 | log_error("Failed to parse Reloading message: %s", bus_error_message(&error)); | |
604 | goto finish; | |
605 | } | |
606 | ||
607 | /* systemd finished reloading, let's recheck all our machines */ | |
608 | if (!b) { | |
609 | Machine *mm; | |
610 | Iterator i; | |
611 | ||
612 | log_debug("System manager has been reloaded, rechecking machines..."); | |
613 | ||
614 | HASHMAP_FOREACH(mm, m->machines, i) | |
615 | machine_add_to_gc_queue(mm); | |
943aca8e | 616 | } |
1ee306e1 LP |
617 | } |
618 | ||
619 | finish: | |
620 | dbus_error_free(&error); | |
621 | ||
622 | return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; | |
623 | } | |
624 | ||
554604b3 LP |
625 | static int copy_many_fields(DBusMessageIter *dest, DBusMessageIter *src); |
626 | ||
627 | static int copy_one_field(DBusMessageIter *dest, DBusMessageIter *src) { | |
628 | int type, r; | |
629 | ||
630 | type = dbus_message_iter_get_arg_type(src); | |
631 | ||
632 | switch (type) { | |
633 | ||
634 | case DBUS_TYPE_STRUCT: { | |
635 | DBusMessageIter dest_sub, src_sub; | |
636 | ||
637 | dbus_message_iter_recurse(src, &src_sub); | |
638 | ||
639 | if (!dbus_message_iter_open_container(dest, DBUS_TYPE_STRUCT, NULL, &dest_sub)) | |
640 | return log_oom(); | |
641 | ||
642 | r = copy_many_fields(&dest_sub, &src_sub); | |
643 | if (r < 0) | |
644 | return r; | |
645 | ||
646 | if (!dbus_message_iter_close_container(dest, &dest_sub)) | |
647 | return log_oom(); | |
648 | ||
649 | return 0; | |
650 | } | |
651 | ||
652 | case DBUS_TYPE_ARRAY: { | |
653 | DBusMessageIter dest_sub, src_sub; | |
654 | ||
655 | dbus_message_iter_recurse(src, &src_sub); | |
656 | ||
657 | if (!dbus_message_iter_open_container(dest, DBUS_TYPE_ARRAY, dbus_message_iter_get_signature(&src_sub), &dest_sub)) | |
658 | return log_oom(); | |
659 | ||
660 | r = copy_many_fields(&dest_sub, &src_sub); | |
661 | if (r < 0) | |
662 | return r; | |
663 | ||
664 | if (!dbus_message_iter_close_container(dest, &dest_sub)) | |
665 | return log_oom(); | |
666 | ||
667 | return 0; | |
668 | } | |
669 | ||
670 | case DBUS_TYPE_VARIANT: { | |
671 | DBusMessageIter dest_sub, src_sub; | |
672 | ||
673 | dbus_message_iter_recurse(src, &src_sub); | |
674 | ||
675 | if (!dbus_message_iter_open_container(dest, DBUS_TYPE_VARIANT, dbus_message_iter_get_signature(&src_sub), &dest_sub)) | |
676 | return log_oom(); | |
677 | ||
678 | r = copy_one_field(&dest_sub, &src_sub); | |
679 | if (r < 0) | |
680 | return r; | |
681 | ||
682 | if (!dbus_message_iter_close_container(dest, &dest_sub)) | |
683 | return log_oom(); | |
684 | ||
685 | return 0; | |
686 | } | |
687 | ||
688 | case DBUS_TYPE_STRING: | |
689 | case DBUS_TYPE_OBJECT_PATH: | |
690 | case DBUS_TYPE_BYTE: | |
691 | case DBUS_TYPE_BOOLEAN: | |
692 | case DBUS_TYPE_UINT16: | |
693 | case DBUS_TYPE_INT16: | |
694 | case DBUS_TYPE_UINT32: | |
695 | case DBUS_TYPE_INT32: | |
696 | case DBUS_TYPE_UINT64: | |
697 | case DBUS_TYPE_INT64: | |
698 | case DBUS_TYPE_DOUBLE: | |
699 | case DBUS_TYPE_SIGNATURE: { | |
700 | const void *p; | |
701 | ||
702 | dbus_message_iter_get_basic(src, &p); | |
703 | dbus_message_iter_append_basic(dest, type, &p); | |
704 | return 0; | |
705 | } | |
706 | ||
707 | default: | |
708 | return -EINVAL; | |
709 | } | |
710 | } | |
711 | ||
712 | static int copy_many_fields(DBusMessageIter *dest, DBusMessageIter *src) { | |
713 | int r; | |
714 | ||
715 | assert(dest); | |
716 | assert(src); | |
717 | ||
718 | while (dbus_message_iter_get_arg_type(src) != DBUS_TYPE_INVALID) { | |
719 | ||
720 | r = copy_one_field(dest, src); | |
721 | if (r < 0) | |
722 | return r; | |
723 | ||
724 | dbus_message_iter_next(src); | |
725 | } | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
1ee306e1 LP |
730 | int manager_start_scope( |
731 | Manager *manager, | |
732 | const char *scope, | |
733 | pid_t pid, | |
734 | const char *slice, | |
735 | const char *description, | |
554604b3 | 736 | DBusMessageIter *more_properties, |
1ee306e1 LP |
737 | DBusError *error, |
738 | char **job) { | |
739 | ||
740 | _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL; | |
741 | DBusMessageIter iter, sub, sub2, sub3, sub4; | |
742 | const char *timeout_stop_property = "TimeoutStopUSec"; | |
743 | const char *pids_property = "PIDs"; | |
744 | uint64_t timeout = 500 * USEC_PER_MSEC; | |
745 | const char *fail = "fail"; | |
746 | uint32_t u; | |
554604b3 | 747 | int r; |
1ee306e1 LP |
748 | |
749 | assert(manager); | |
750 | assert(scope); | |
751 | assert(pid > 1); | |
752 | ||
753 | if (!slice) | |
754 | slice = ""; | |
755 | ||
756 | m = dbus_message_new_method_call( | |
757 | "org.freedesktop.systemd1", | |
758 | "/org/freedesktop/systemd1", | |
759 | "org.freedesktop.systemd1.Manager", | |
760 | "StartTransientUnit"); | |
761 | if (!m) | |
762 | return log_oom(); | |
763 | ||
764 | dbus_message_iter_init_append(m, &iter); | |
765 | ||
766 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &scope) || | |
767 | !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &fail) || | |
768 | !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sv)", &sub)) | |
769 | return log_oom(); | |
770 | ||
771 | if (!isempty(slice)) { | |
772 | const char *slice_property = "Slice"; | |
773 | ||
774 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) || | |
775 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &slice_property) || | |
776 | !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "s", &sub3) || | |
777 | !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &slice) || | |
778 | !dbus_message_iter_close_container(&sub2, &sub3) || | |
779 | !dbus_message_iter_close_container(&sub, &sub2)) | |
780 | return log_oom(); | |
781 | } | |
782 | ||
783 | if (!isempty(description)) { | |
784 | const char *description_property = "Description"; | |
785 | ||
786 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) || | |
787 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description_property) || | |
788 | !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "s", &sub3) || | |
789 | !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &description) || | |
790 | !dbus_message_iter_close_container(&sub2, &sub3) || | |
791 | !dbus_message_iter_close_container(&sub, &sub2)) | |
792 | return log_oom(); | |
793 | } | |
794 | ||
795 | /* cgroup empty notification is not available in containers | |
796 | * currently. To make this less problematic, let's shorten the | |
797 | * stop timeout for sessions, so that we don't wait | |
798 | * forever. */ | |
799 | ||
800 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) || | |
801 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &timeout_stop_property) || | |
802 | !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "t", &sub3) || | |
803 | !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_UINT64, &timeout) || | |
804 | !dbus_message_iter_close_container(&sub2, &sub3) || | |
805 | !dbus_message_iter_close_container(&sub, &sub2)) | |
806 | return log_oom(); | |
807 | ||
808 | u = pid; | |
809 | if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) || | |
810 | !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &pids_property) || | |
811 | !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "au", &sub3) || | |
812 | !dbus_message_iter_open_container(&sub3, DBUS_TYPE_ARRAY, "u", &sub4) || | |
813 | !dbus_message_iter_append_basic(&sub4, DBUS_TYPE_UINT32, &u) || | |
814 | !dbus_message_iter_close_container(&sub3, &sub4) || | |
815 | !dbus_message_iter_close_container(&sub2, &sub3) || | |
554604b3 LP |
816 | !dbus_message_iter_close_container(&sub, &sub2)) |
817 | return log_oom(); | |
818 | ||
819 | if (more_properties) { | |
820 | r = copy_many_fields(&sub, more_properties); | |
821 | if (r < 0) | |
822 | return r; | |
823 | } | |
824 | ||
825 | if (!dbus_message_iter_close_container(&iter, &sub)) | |
1ee306e1 LP |
826 | return log_oom(); |
827 | ||
828 | reply = dbus_connection_send_with_reply_and_block(manager->bus, m, -1, error); | |
829 | if (!reply) | |
830 | return -EIO; | |
831 | ||
832 | if (job) { | |
833 | const char *j; | |
834 | char *copy; | |
835 | ||
836 | if (!dbus_message_get_args(reply, error, DBUS_TYPE_OBJECT_PATH, &j, DBUS_TYPE_INVALID)) | |
837 | return -EIO; | |
838 | ||
839 | copy = strdup(j); | |
840 | if (!copy) | |
841 | return -ENOMEM; | |
842 | ||
843 | *job = copy; | |
844 | } | |
845 | ||
846 | return 0; | |
847 | } | |
848 | ||
849 | int manager_stop_unit(Manager *manager, const char *unit, DBusError *error, char **job) { | |
850 | _cleanup_dbus_message_unref_ DBusMessage *reply = NULL; | |
851 | const char *fail = "fail"; | |
852 | int r; | |
853 | ||
854 | assert(manager); | |
855 | assert(unit); | |
856 | ||
857 | r = bus_method_call_with_reply( | |
858 | manager->bus, | |
859 | "org.freedesktop.systemd1", | |
860 | "/org/freedesktop/systemd1", | |
861 | "org.freedesktop.systemd1.Manager", | |
862 | "StopUnit", | |
863 | &reply, | |
864 | error, | |
865 | DBUS_TYPE_STRING, &unit, | |
866 | DBUS_TYPE_STRING, &fail, | |
867 | DBUS_TYPE_INVALID); | |
868 | if (r < 0) { | |
6797c324 LP |
869 | if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || |
870 | dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) { | |
871 | ||
872 | if (job) | |
873 | *job = NULL; | |
874 | ||
875 | dbus_error_free(error); | |
876 | return 0; | |
877 | } | |
878 | ||
1ee306e1 LP |
879 | log_error("Failed to stop unit %s: %s", unit, bus_error(error, r)); |
880 | return r; | |
881 | } | |
882 | ||
883 | if (job) { | |
884 | const char *j; | |
885 | char *copy; | |
886 | ||
887 | if (!dbus_message_get_args(reply, error, | |
888 | DBUS_TYPE_OBJECT_PATH, &j, | |
889 | DBUS_TYPE_INVALID)) { | |
890 | log_error("Failed to parse reply."); | |
891 | return -EIO; | |
892 | } | |
893 | ||
894 | copy = strdup(j); | |
895 | if (!copy) | |
896 | return -ENOMEM; | |
897 | ||
898 | *job = copy; | |
899 | } | |
900 | ||
6797c324 | 901 | return 1; |
1ee306e1 LP |
902 | } |
903 | ||
904 | int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, DBusError *error) { | |
905 | _cleanup_dbus_message_unref_ DBusMessage *reply = NULL; | |
906 | const char *w; | |
907 | int r; | |
908 | ||
909 | assert(manager); | |
910 | assert(unit); | |
911 | ||
912 | w = who == KILL_LEADER ? "process" : "cgroup"; | |
913 | assert_cc(sizeof(signo) == sizeof(int32_t)); | |
914 | ||
915 | r = bus_method_call_with_reply( | |
916 | manager->bus, | |
917 | "org.freedesktop.systemd1", | |
918 | "/org/freedesktop/systemd1", | |
919 | "org.freedesktop.systemd1.Manager", | |
920 | "KillUnit", | |
921 | &reply, | |
922 | error, | |
923 | DBUS_TYPE_STRING, &unit, | |
924 | DBUS_TYPE_STRING, &w, | |
925 | DBUS_TYPE_INT32, &signo, | |
926 | DBUS_TYPE_INVALID); | |
927 | if (r < 0) { | |
928 | log_error("Failed to stop unit %s: %s", unit, bus_error(error, r)); | |
929 | return r; | |
930 | } | |
931 | ||
932 | return 0; | |
933 | } | |
934 | ||
935 | int manager_unit_is_active(Manager *manager, const char *unit) { | |
936 | ||
937 | const char *interface = "org.freedesktop.systemd1.Unit"; | |
938 | const char *property = "ActiveState"; | |
939 | _cleanup_dbus_message_unref_ DBusMessage *reply = NULL; | |
940 | _cleanup_free_ char *path = NULL; | |
941 | DBusMessageIter iter, sub; | |
942 | const char *state; | |
943 | DBusError error; | |
944 | int r; | |
945 | ||
946 | assert(manager); | |
947 | assert(unit); | |
948 | ||
949 | dbus_error_init(&error); | |
950 | ||
951 | path = unit_dbus_path_from_name(unit); | |
952 | if (!path) | |
953 | return -ENOMEM; | |
954 | ||
955 | r = bus_method_call_with_reply( | |
956 | manager->bus, | |
957 | "org.freedesktop.systemd1", | |
958 | path, | |
959 | "org.freedesktop.DBus.Properties", | |
960 | "Get", | |
961 | &reply, | |
962 | &error, | |
963 | DBUS_TYPE_STRING, &interface, | |
964 | DBUS_TYPE_STRING, &property, | |
965 | DBUS_TYPE_INVALID); | |
1ee306e1 | 966 | if (r < 0) { |
6797c324 LP |
967 | if (dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY) || |
968 | dbus_error_has_name(&error, DBUS_ERROR_DISCONNECTED)) { | |
969 | dbus_error_free(&error); | |
970 | return true; | |
971 | } | |
972 | ||
973 | if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) || | |
974 | dbus_error_has_name(&error, BUS_ERROR_LOAD_FAILED)) { | |
975 | dbus_error_free(&error); | |
976 | return false; | |
977 | } | |
978 | ||
1ee306e1 LP |
979 | log_error("Failed to query ActiveState: %s", bus_error(&error, r)); |
980 | dbus_error_free(&error); | |
981 | return r; | |
982 | } | |
983 | ||
984 | if (!dbus_message_iter_init(reply, &iter) || | |
985 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
986 | log_error("Failed to parse reply."); | |
987 | return -EINVAL; | |
988 | } | |
989 | ||
990 | dbus_message_iter_recurse(&iter, &sub); | |
991 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { | |
992 | log_error("Failed to parse reply."); | |
993 | return -EINVAL; | |
994 | } | |
995 | ||
996 | dbus_message_iter_get_basic(&sub, &state); | |
997 | ||
998 | return !streq(state, "inactive") && !streq(state, "failed"); | |
999 | } |