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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> | |
1ee306e1 | 25 | |
c3350683 | 26 | #include "sd-id128.h" |
9b420b3c | 27 | #include "strv.h" |
1ee306e1 | 28 | #include "path-util.h" |
1ee306e1 | 29 | #include "unit-name.h" |
c3350683 | 30 | #include "bus-util.h" |
96aad8d1 | 31 | #include "bus-common-errors.h" |
23c80348 | 32 | #include "cgroup-util.h" |
160e3793 | 33 | #include "btrfs-util.h" |
c01ff965 LP |
34 | #include "formats-util.h" |
35 | #include "process-util.h" | |
003dffde | 36 | #include "machine-image.h" |
4cee5eed | 37 | #include "machine-pool.h" |
003dffde | 38 | #include "image-dbus.h" |
c3350683 | 39 | #include "machined.h" |
003dffde | 40 | #include "machine-dbus.h" |
1ee306e1 | 41 | |
160e3793 LP |
42 | static int property_get_pool_path( |
43 | sd_bus *bus, | |
44 | const char *path, | |
45 | const char *interface, | |
46 | const char *property, | |
47 | sd_bus_message *reply, | |
48 | void *userdata, | |
49 | sd_bus_error *error) { | |
50 | ||
51 | assert(bus); | |
52 | assert(reply); | |
53 | ||
54 | return sd_bus_message_append(reply, "s", "/var/lib/machines"); | |
55 | } | |
56 | ||
57 | static int property_get_pool_usage( | |
58 | sd_bus *bus, | |
59 | const char *path, | |
60 | const char *interface, | |
61 | const char *property, | |
62 | sd_bus_message *reply, | |
63 | void *userdata, | |
64 | sd_bus_error *error) { | |
65 | ||
66 | _cleanup_close_ int fd = -1; | |
67 | uint64_t usage = (uint64_t) -1; | |
68 | struct stat st; | |
69 | ||
70 | assert(bus); | |
71 | assert(reply); | |
72 | ||
73 | /* We try to read the quota info from /var/lib/machines, as | |
74 | * well as the usage of the loopback file | |
75 | * /var/lib/machines.raw, and pick the larger value. */ | |
76 | ||
77 | fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY); | |
78 | if (fd >= 0) { | |
79 | BtrfsQuotaInfo q; | |
80 | ||
81 | if (btrfs_subvol_get_quota_fd(fd, &q) >= 0) | |
cb81cd80 | 82 | usage = q.referenced; |
160e3793 LP |
83 | } |
84 | ||
85 | if (stat("/var/lib/machines.raw", &st) >= 0) { | |
86 | if (usage == (uint64_t) -1 || st.st_blocks * 512ULL > usage) | |
87 | usage = st.st_blocks * 512ULL; | |
88 | } | |
89 | ||
90 | return sd_bus_message_append(reply, "t", usage); | |
91 | } | |
92 | ||
93 | static int property_get_pool_limit( | |
94 | sd_bus *bus, | |
95 | const char *path, | |
96 | const char *interface, | |
97 | const char *property, | |
98 | sd_bus_message *reply, | |
99 | void *userdata, | |
100 | sd_bus_error *error) { | |
101 | ||
102 | _cleanup_close_ int fd = -1; | |
103 | uint64_t size = (uint64_t) -1; | |
104 | struct stat st; | |
105 | ||
106 | assert(bus); | |
107 | assert(reply); | |
108 | ||
109 | /* We try to read the quota limit from /var/lib/machines, as | |
110 | * well as the size of the loopback file | |
111 | * /var/lib/machines.raw, and pick the smaller value. */ | |
112 | ||
113 | fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY); | |
114 | if (fd >= 0) { | |
115 | BtrfsQuotaInfo q; | |
116 | ||
117 | if (btrfs_subvol_get_quota_fd(fd, &q) >= 0) | |
cb81cd80 | 118 | size = q.referenced_max; |
160e3793 LP |
119 | } |
120 | ||
121 | if (stat("/var/lib/machines.raw", &st) >= 0) { | |
122 | if (size == (uint64_t) -1 || (uint64_t) st.st_size < size) | |
123 | size = st.st_size; | |
124 | } | |
125 | ||
126 | return sd_bus_message_append(reply, "t", size); | |
127 | } | |
128 | ||
19070062 | 129 | static int method_get_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 LP |
130 | _cleanup_free_ char *p = NULL; |
131 | Manager *m = userdata; | |
132 | Machine *machine; | |
133 | const char *name; | |
134 | int r; | |
135 | ||
c3350683 LP |
136 | assert(message); |
137 | assert(m); | |
138 | ||
139 | r = sd_bus_message_read(message, "s", &name); | |
140 | if (r < 0) | |
ebcf1f97 | 141 | return r; |
c3350683 LP |
142 | |
143 | machine = hashmap_get(m->machines, name); | |
144 | if (!machine) | |
ebcf1f97 | 145 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); |
c3350683 LP |
146 | |
147 | p = machine_bus_path(machine); | |
148 | if (!p) | |
ebcf1f97 | 149 | return -ENOMEM; |
c3350683 | 150 | |
df2d202e | 151 | return sd_bus_reply_method_return(message, "o", p); |
c3350683 LP |
152 | } |
153 | ||
19070062 | 154 | static int method_get_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c2ce6a3d LP |
155 | _cleanup_free_ char *p = NULL; |
156 | Manager *m = userdata; | |
157 | const char *name; | |
158 | int r; | |
159 | ||
c2ce6a3d LP |
160 | assert(message); |
161 | assert(m); | |
162 | ||
163 | r = sd_bus_message_read(message, "s", &name); | |
164 | if (r < 0) | |
165 | return r; | |
166 | ||
167 | r = image_find(name, NULL); | |
168 | if (r == 0) | |
169 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); | |
170 | if (r < 0) | |
171 | return r; | |
172 | ||
173 | p = image_bus_path(name); | |
174 | if (!p) | |
175 | return -ENOMEM; | |
176 | ||
177 | return sd_bus_reply_method_return(message, "o", p); | |
178 | } | |
179 | ||
19070062 | 180 | static int method_get_machine_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 LP |
181 | _cleanup_free_ char *p = NULL; |
182 | Manager *m = userdata; | |
183 | Machine *machine = NULL; | |
4e724d9c | 184 | pid_t pid; |
c3350683 LP |
185 | int r; |
186 | ||
c3350683 LP |
187 | assert(message); |
188 | assert(m); | |
189 | ||
4e724d9c LP |
190 | assert_cc(sizeof(pid_t) == sizeof(uint32_t)); |
191 | ||
c3350683 LP |
192 | r = sd_bus_message_read(message, "u", &pid); |
193 | if (r < 0) | |
ebcf1f97 | 194 | return r; |
c3350683 | 195 | |
4e724d9c | 196 | if (pid == 0) { |
5b12334d LP |
197 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
198 | ||
199 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); | |
200 | if (r < 0) | |
201 | return r; | |
202 | ||
203 | r = sd_bus_creds_get_pid(creds, &pid); | |
4e724d9c | 204 | if (r < 0) |
ebcf1f97 | 205 | return r; |
4e724d9c LP |
206 | } |
207 | ||
c3350683 LP |
208 | r = manager_get_machine_by_pid(m, pid, &machine); |
209 | if (r < 0) | |
ebcf1f97 | 210 | return r; |
c3350683 | 211 | if (!machine) |
de0671ee | 212 | return sd_bus_error_setf(error, BUS_ERROR_NO_MACHINE_FOR_PID, "PID "PID_FMT" does not belong to any known machine", pid); |
c3350683 LP |
213 | |
214 | p = machine_bus_path(machine); | |
215 | if (!p) | |
ebcf1f97 | 216 | return -ENOMEM; |
c3350683 | 217 | |
df2d202e | 218 | return sd_bus_reply_method_return(message, "o", p); |
c3350683 LP |
219 | } |
220 | ||
19070062 | 221 | static int method_list_machines(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 LP |
222 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
223 | Manager *m = userdata; | |
224 | Machine *machine; | |
225 | Iterator i; | |
226 | int r; | |
227 | ||
c3350683 LP |
228 | assert(message); |
229 | assert(m); | |
230 | ||
df2d202e | 231 | r = sd_bus_message_new_method_return(message, &reply); |
c3350683 | 232 | if (r < 0) |
ebcf1f97 | 233 | return sd_bus_error_set_errno(error, r); |
c3350683 LP |
234 | |
235 | r = sd_bus_message_open_container(reply, 'a', "(ssso)"); | |
236 | if (r < 0) | |
ebcf1f97 | 237 | return sd_bus_error_set_errno(error, r); |
c3350683 LP |
238 | |
239 | HASHMAP_FOREACH(machine, m->machines, i) { | |
240 | _cleanup_free_ char *p = NULL; | |
241 | ||
242 | p = machine_bus_path(machine); | |
243 | if (!p) | |
ebcf1f97 | 244 | return -ENOMEM; |
c3350683 LP |
245 | |
246 | r = sd_bus_message_append(reply, "(ssso)", | |
247 | machine->name, | |
248 | strempty(machine_class_to_string(machine->class)), | |
249 | machine->service, | |
250 | p); | |
251 | if (r < 0) | |
ebcf1f97 | 252 | return sd_bus_error_set_errno(error, r); |
c3350683 | 253 | } |
1ee306e1 | 254 | |
c3350683 LP |
255 | r = sd_bus_message_close_container(reply); |
256 | if (r < 0) | |
ebcf1f97 | 257 | return sd_bus_error_set_errno(error, r); |
c3350683 | 258 | |
9030ca46 | 259 | return sd_bus_send(NULL, reply, NULL); |
c3350683 LP |
260 | } |
261 | ||
9b5ed6fe | 262 | static int method_create_or_register_machine(Manager *manager, sd_bus_message *message, bool read_network, Machine **_m, sd_bus_error *error) { |
8aec412f | 263 | const char *name, *service, *class, *root_directory; |
9b5ed6fe | 264 | const int32_t *netif = NULL; |
1ee306e1 LP |
265 | MachineClass c; |
266 | uint32_t leader; | |
267 | sd_id128_t id; | |
c3350683 | 268 | const void *v; |
1ee306e1 | 269 | Machine *m; |
9b5ed6fe | 270 | size_t n, n_netif = 0; |
c3350683 | 271 | int r; |
1ee306e1 | 272 | |
c3350683 | 273 | assert(manager); |
89f7c846 LP |
274 | assert(message); |
275 | assert(_m); | |
1ee306e1 | 276 | |
c3350683 LP |
277 | r = sd_bus_message_read(message, "s", &name); |
278 | if (r < 0) | |
ebcf1f97 | 279 | return r; |
7f0d207d | 280 | if (!machine_name_is_valid(name)) |
ebcf1f97 | 281 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine name"); |
1ee306e1 | 282 | |
c3350683 LP |
283 | r = sd_bus_message_read_array(message, 'y', &v, &n); |
284 | if (r < 0) | |
ebcf1f97 | 285 | return r; |
1ee306e1 LP |
286 | if (n == 0) |
287 | id = SD_ID128_NULL; | |
288 | else if (n == 16) | |
289 | memcpy(&id, v, n); | |
290 | else | |
ebcf1f97 | 291 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine ID parameter"); |
1ee306e1 | 292 | |
c3350683 LP |
293 | r = sd_bus_message_read(message, "ssus", &service, &class, &leader, &root_directory); |
294 | if (r < 0) | |
ebcf1f97 | 295 | return r; |
1ee306e1 | 296 | |
9b5ed6fe LP |
297 | if (read_network) { |
298 | size_t i; | |
299 | ||
300 | r = sd_bus_message_read_array(message, 'i', (const void**) &netif, &n_netif); | |
301 | if (r < 0) | |
302 | return r; | |
303 | ||
304 | n_netif /= sizeof(int32_t); | |
305 | ||
306 | for (i = 0; i < n_netif; i++) { | |
307 | if (netif[i] <= 0) | |
308 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid network interface index %i", netif[i]); | |
309 | } | |
310 | } | |
311 | ||
1ee306e1 LP |
312 | if (isempty(class)) |
313 | c = _MACHINE_CLASS_INVALID; | |
314 | else { | |
315 | c = machine_class_from_string(class); | |
316 | if (c < 0) | |
ebcf1f97 | 317 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine class parameter"); |
1ee306e1 LP |
318 | } |
319 | ||
c3350683 | 320 | if (leader == 1) |
ebcf1f97 | 321 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID"); |
1ee306e1 | 322 | |
c3350683 | 323 | if (!isempty(root_directory) && !path_is_absolute(root_directory)) |
ebcf1f97 | 324 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Root directory must be empty or an absolute path"); |
1ee306e1 | 325 | |
c3350683 | 326 | if (leader == 0) { |
5b12334d LP |
327 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
328 | ||
329 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); | |
330 | if (r < 0) | |
331 | return r; | |
332 | ||
c3350683 | 333 | assert_cc(sizeof(uint32_t) == sizeof(pid_t)); |
554604b3 | 334 | |
5b12334d | 335 | r = sd_bus_creds_get_pid(creds, (pid_t*) &leader); |
c3350683 | 336 | if (r < 0) |
ebcf1f97 | 337 | return r; |
c3350683 | 338 | } |
554604b3 | 339 | |
1ee306e1 | 340 | if (hashmap_get(manager->machines, name)) |
ebcf1f97 | 341 | return sd_bus_error_setf(error, BUS_ERROR_MACHINE_EXISTS, "Machine '%s' already exists", name); |
1ee306e1 LP |
342 | |
343 | r = manager_add_machine(manager, name, &m); | |
344 | if (r < 0) | |
ebcf1f97 | 345 | return r; |
1ee306e1 LP |
346 | |
347 | m->leader = leader; | |
348 | m->class = c; | |
349 | m->id = id; | |
350 | ||
351 | if (!isempty(service)) { | |
352 | m->service = strdup(service); | |
353 | if (!m->service) { | |
ebcf1f97 | 354 | r = -ENOMEM; |
1ee306e1 LP |
355 | goto fail; |
356 | } | |
357 | } | |
358 | ||
359 | if (!isempty(root_directory)) { | |
360 | m->root_directory = strdup(root_directory); | |
361 | if (!m->root_directory) { | |
ebcf1f97 | 362 | r = -ENOMEM; |
1ee306e1 LP |
363 | goto fail; |
364 | } | |
365 | } | |
366 | ||
9b5ed6fe LP |
367 | if (n_netif > 0) { |
368 | assert_cc(sizeof(int32_t) == sizeof(int)); | |
369 | m->netif = memdup(netif, sizeof(int32_t) * n_netif); | |
370 | if (!m->netif) { | |
371 | r = -ENOMEM; | |
372 | goto fail; | |
373 | } | |
374 | ||
375 | m->n_netif = n_netif; | |
376 | } | |
377 | ||
89f7c846 LP |
378 | *_m = m; |
379 | ||
380 | return 1; | |
381 | ||
382 | fail: | |
383 | machine_add_to_gc_queue(m); | |
384 | return r; | |
385 | } | |
386 | ||
19070062 | 387 | static int method_create_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) { |
89f7c846 LP |
388 | Manager *manager = userdata; |
389 | Machine *m = NULL; | |
390 | int r; | |
391 | ||
19070062 LP |
392 | assert(message); |
393 | assert(manager); | |
394 | ||
9b5ed6fe | 395 | r = method_create_or_register_machine(manager, message, read_network, &m, error); |
89f7c846 LP |
396 | if (r < 0) |
397 | return r; | |
398 | ||
399 | r = sd_bus_message_enter_container(message, 'a', "(sv)"); | |
400 | if (r < 0) | |
401 | goto fail; | |
402 | ||
ebcf1f97 LP |
403 | r = machine_start(m, message, error); |
404 | if (r < 0) | |
1ee306e1 LP |
405 | goto fail; |
406 | ||
c3350683 | 407 | m->create_message = sd_bus_message_ref(message); |
c3350683 | 408 | return 1; |
1ee306e1 LP |
409 | |
410 | fail: | |
a3e7f417 | 411 | machine_add_to_gc_queue(m); |
89f7c846 LP |
412 | return r; |
413 | } | |
1ee306e1 | 414 | |
19070062 LP |
415 | static int method_create_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
416 | return method_create_machine_internal(message, true, userdata, error); | |
9b5ed6fe LP |
417 | } |
418 | ||
19070062 LP |
419 | static int method_create_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
420 | return method_create_machine_internal(message, false, userdata, error); | |
9b5ed6fe LP |
421 | } |
422 | ||
19070062 | 423 | static int method_register_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) { |
89f7c846 LP |
424 | Manager *manager = userdata; |
425 | _cleanup_free_ char *p = NULL; | |
426 | Machine *m = NULL; | |
427 | int r; | |
428 | ||
19070062 LP |
429 | assert(message); |
430 | assert(manager); | |
431 | ||
9b5ed6fe | 432 | r = method_create_or_register_machine(manager, message, read_network, &m, error); |
89f7c846 LP |
433 | if (r < 0) |
434 | return r; | |
435 | ||
436 | r = cg_pid_get_unit(m->leader, &m->unit); | |
437 | if (r < 0) { | |
438 | r = sd_bus_error_set_errnof(error, r, "Failed to determine unit of process "PID_FMT" : %s", m->leader, strerror(-r)); | |
439 | goto fail; | |
440 | } | |
441 | ||
442 | r = machine_start(m, NULL, error); | |
443 | if (r < 0) | |
444 | goto fail; | |
445 | ||
446 | p = machine_bus_path(m); | |
447 | if (!p) { | |
448 | r = -ENOMEM; | |
449 | goto fail; | |
450 | } | |
451 | ||
452 | return sd_bus_reply_method_return(message, "o", p); | |
453 | ||
454 | fail: | |
455 | machine_add_to_gc_queue(m); | |
1ee306e1 LP |
456 | return r; |
457 | } | |
458 | ||
19070062 LP |
459 | static int method_register_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
460 | return method_register_machine_internal(message, true, userdata, error); | |
9b5ed6fe LP |
461 | } |
462 | ||
19070062 LP |
463 | static int method_register_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
464 | return method_register_machine_internal(message, false, userdata, error); | |
9b5ed6fe LP |
465 | } |
466 | ||
19070062 | 467 | static int method_terminate_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
1ee306e1 | 468 | Manager *m = userdata; |
c3350683 LP |
469 | Machine *machine; |
470 | const char *name; | |
1ee306e1 LP |
471 | int r; |
472 | ||
1ee306e1 LP |
473 | assert(message); |
474 | assert(m); | |
475 | ||
c3350683 LP |
476 | r = sd_bus_message_read(message, "s", &name); |
477 | if (r < 0) | |
ebcf1f97 | 478 | return sd_bus_error_set_errno(error, r); |
1ee306e1 | 479 | |
c3350683 LP |
480 | machine = hashmap_get(m->machines, name); |
481 | if (!machine) | |
ebcf1f97 | 482 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); |
1ee306e1 | 483 | |
19070062 | 484 | return bus_machine_method_terminate(message, machine, error); |
c3350683 | 485 | } |
1ee306e1 | 486 | |
19070062 | 487 | static int method_kill_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 LP |
488 | Manager *m = userdata; |
489 | Machine *machine; | |
490 | const char *name; | |
c3350683 | 491 | int r; |
1ee306e1 | 492 | |
c3350683 LP |
493 | assert(message); |
494 | assert(m); | |
1ee306e1 | 495 | |
878cd7e9 | 496 | r = sd_bus_message_read(message, "s", &name); |
c3350683 | 497 | if (r < 0) |
ebcf1f97 | 498 | return sd_bus_error_set_errno(error, r); |
1ee306e1 | 499 | |
c3350683 LP |
500 | machine = hashmap_get(m->machines, name); |
501 | if (!machine) | |
ebcf1f97 | 502 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); |
1ee306e1 | 503 | |
19070062 | 504 | return bus_machine_method_kill(message, machine, error); |
878cd7e9 LP |
505 | } |
506 | ||
19070062 | 507 | static int method_get_machine_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
878cd7e9 LP |
508 | Manager *m = userdata; |
509 | Machine *machine; | |
510 | const char *name; | |
511 | int r; | |
512 | ||
878cd7e9 LP |
513 | assert(message); |
514 | assert(m); | |
515 | ||
516 | r = sd_bus_message_read(message, "s", &name); | |
c3350683 | 517 | if (r < 0) |
ebcf1f97 | 518 | return sd_bus_error_set_errno(error, r); |
1ee306e1 | 519 | |
878cd7e9 LP |
520 | machine = hashmap_get(m->machines, name); |
521 | if (!machine) | |
522 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
523 | ||
19070062 | 524 | return bus_machine_method_get_addresses(message, machine, error); |
c3350683 | 525 | } |
1ee306e1 | 526 | |
19070062 | 527 | static int method_get_machine_os_release(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
717603e3 LP |
528 | Manager *m = userdata; |
529 | Machine *machine; | |
530 | const char *name; | |
531 | int r; | |
532 | ||
717603e3 LP |
533 | assert(message); |
534 | assert(m); | |
535 | ||
536 | r = sd_bus_message_read(message, "s", &name); | |
537 | if (r < 0) | |
538 | return sd_bus_error_set_errno(error, r); | |
539 | ||
540 | machine = hashmap_get(m->machines, name); | |
541 | if (!machine) | |
542 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
543 | ||
19070062 | 544 | return bus_machine_method_get_os_release(message, machine, error); |
717603e3 LP |
545 | } |
546 | ||
19070062 | 547 | static int method_list_images(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
cd61c3bf LP |
548 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
549 | _cleanup_(image_hashmap_freep) Hashmap *images = NULL; | |
550 | Manager *m = userdata; | |
551 | Image *image; | |
552 | Iterator i; | |
553 | int r; | |
554 | ||
cd61c3bf LP |
555 | assert(message); |
556 | assert(m); | |
557 | ||
558 | images = hashmap_new(&string_hash_ops); | |
559 | if (!images) | |
560 | return -ENOMEM; | |
561 | ||
562 | r = image_discover(images); | |
563 | if (r < 0) | |
564 | return r; | |
565 | ||
566 | r = sd_bus_message_new_method_return(message, &reply); | |
567 | if (r < 0) | |
568 | return r; | |
569 | ||
b6b18498 | 570 | r = sd_bus_message_open_container(reply, 'a', "(ssbttto)"); |
cd61c3bf LP |
571 | if (r < 0) |
572 | return r; | |
573 | ||
574 | HASHMAP_FOREACH(image, images, i) { | |
575 | _cleanup_free_ char *p = NULL; | |
576 | ||
577 | p = image_bus_path(image->name); | |
578 | if (!p) | |
579 | return -ENOMEM; | |
580 | ||
b6b18498 | 581 | r = sd_bus_message_append(reply, "(ssbttto)", |
cd61c3bf LP |
582 | image->name, |
583 | image_type_to_string(image->type), | |
584 | image->read_only, | |
10f9c755 LP |
585 | image->crtime, |
586 | image->mtime, | |
c19de711 | 587 | image->usage, |
cd61c3bf LP |
588 | p); |
589 | if (r < 0) | |
590 | return r; | |
591 | } | |
592 | ||
593 | r = sd_bus_message_close_container(reply); | |
594 | if (r < 0) | |
595 | return r; | |
596 | ||
9030ca46 | 597 | return sd_bus_send(NULL, reply, NULL); |
cd61c3bf LP |
598 | } |
599 | ||
19070062 | 600 | static int method_open_machine_pty(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
40205d70 LP |
601 | Manager *m = userdata; |
602 | Machine *machine; | |
603 | const char *name; | |
604 | int r; | |
605 | ||
40205d70 LP |
606 | assert(message); |
607 | assert(m); | |
608 | ||
609 | r = sd_bus_message_read(message, "s", &name); | |
610 | if (r < 0) | |
611 | return sd_bus_error_set_errno(error, r); | |
612 | ||
613 | machine = hashmap_get(m->machines, name); | |
614 | if (!machine) | |
615 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
616 | ||
19070062 | 617 | return bus_machine_method_open_pty(message, machine, error); |
40205d70 LP |
618 | } |
619 | ||
19070062 | 620 | static int method_open_machine_login(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
5f8cc96a LP |
621 | Manager *m = userdata; |
622 | Machine *machine; | |
623 | const char *name; | |
624 | int r; | |
625 | ||
5f8cc96a LP |
626 | assert(message); |
627 | assert(m); | |
628 | ||
629 | r = sd_bus_message_read(message, "s", &name); | |
630 | if (r < 0) | |
08682124 | 631 | return r; |
5f8cc96a LP |
632 | |
633 | machine = hashmap_get(m->machines, name); | |
634 | if (!machine) | |
635 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
636 | ||
19070062 | 637 | return bus_machine_method_open_login(message, machine, error); |
5f8cc96a LP |
638 | } |
639 | ||
19070062 | 640 | static int method_bind_mount_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
90adaa25 LP |
641 | Manager *m = userdata; |
642 | Machine *machine; | |
643 | const char *name; | |
644 | int r; | |
645 | ||
90adaa25 LP |
646 | assert(message); |
647 | assert(m); | |
648 | ||
649 | r = sd_bus_message_read(message, "s", &name); | |
650 | if (r < 0) | |
651 | return r; | |
652 | ||
653 | machine = hashmap_get(m->machines, name); | |
654 | if (!machine) | |
655 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
656 | ||
19070062 | 657 | return bus_machine_method_bind_mount(message, machine, error); |
90adaa25 LP |
658 | } |
659 | ||
19070062 | 660 | static int method_copy_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
0370612e LP |
661 | Manager *m = userdata; |
662 | Machine *machine; | |
663 | const char *name; | |
664 | int r; | |
665 | ||
0370612e LP |
666 | assert(message); |
667 | assert(m); | |
668 | ||
669 | r = sd_bus_message_read(message, "s", &name); | |
670 | if (r < 0) | |
671 | return r; | |
672 | ||
673 | machine = hashmap_get(m->machines, name); | |
674 | if (!machine) | |
675 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
676 | ||
19070062 | 677 | return bus_machine_method_copy(message, machine, error); |
0370612e LP |
678 | } |
679 | ||
19070062 | 680 | static int method_remove_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
08682124 LP |
681 | _cleanup_(image_unrefp) Image* i = NULL; |
682 | const char *name; | |
683 | int r; | |
684 | ||
08682124 LP |
685 | assert(message); |
686 | ||
687 | r = sd_bus_message_read(message, "s", &name); | |
688 | if (r < 0) | |
689 | return r; | |
690 | ||
691 | if (!image_name_is_valid(name)) | |
692 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); | |
693 | ||
694 | r = image_find(name, &i); | |
695 | if (r < 0) | |
696 | return r; | |
697 | if (r == 0) | |
698 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); | |
699 | ||
70244d1d | 700 | i->userdata = userdata; |
19070062 | 701 | return bus_image_method_remove(message, i, error); |
08682124 LP |
702 | } |
703 | ||
19070062 | 704 | static int method_rename_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
ebd93cb6 | 705 | _cleanup_(image_unrefp) Image* i = NULL; |
1ddb263d | 706 | const char *old_name; |
ebd93cb6 LP |
707 | int r; |
708 | ||
ebd93cb6 LP |
709 | assert(message); |
710 | ||
1ddb263d | 711 | r = sd_bus_message_read(message, "s", &old_name); |
ebd93cb6 LP |
712 | if (r < 0) |
713 | return r; | |
714 | ||
715 | if (!image_name_is_valid(old_name)) | |
716 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); | |
ebd93cb6 LP |
717 | |
718 | r = image_find(old_name, &i); | |
719 | if (r < 0) | |
720 | return r; | |
721 | if (r == 0) | |
722 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); | |
723 | ||
70244d1d | 724 | i->userdata = userdata; |
19070062 | 725 | return bus_image_method_rename(message, i, error); |
ebd93cb6 LP |
726 | } |
727 | ||
19070062 | 728 | static int method_clone_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
ebd93cb6 | 729 | _cleanup_(image_unrefp) Image *i = NULL; |
1ddb263d LP |
730 | const char *old_name; |
731 | int r; | |
ebd93cb6 | 732 | |
19070062 LP |
733 | assert(message); |
734 | ||
1ddb263d | 735 | r = sd_bus_message_read(message, "s", &old_name); |
ebd93cb6 LP |
736 | if (r < 0) |
737 | return r; | |
738 | ||
739 | if (!image_name_is_valid(old_name)) | |
740 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); | |
ebd93cb6 LP |
741 | |
742 | r = image_find(old_name, &i); | |
743 | if (r < 0) | |
744 | return r; | |
745 | if (r == 0) | |
746 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); | |
747 | ||
70244d1d | 748 | i->userdata = userdata; |
19070062 | 749 | return bus_image_method_clone(message, i, error); |
ebd93cb6 LP |
750 | } |
751 | ||
19070062 | 752 | static int method_mark_image_read_only(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
ebd93cb6 LP |
753 | _cleanup_(image_unrefp) Image *i = NULL; |
754 | const char *name; | |
1ddb263d | 755 | int r; |
ebd93cb6 | 756 | |
19070062 LP |
757 | assert(message); |
758 | ||
1ddb263d | 759 | r = sd_bus_message_read(message, "s", &name); |
ebd93cb6 LP |
760 | if (r < 0) |
761 | return r; | |
762 | ||
763 | if (!image_name_is_valid(name)) | |
764 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); | |
765 | ||
766 | r = image_find(name, &i); | |
767 | if (r < 0) | |
768 | return r; | |
769 | if (r == 0) | |
770 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); | |
771 | ||
70244d1d | 772 | i->userdata = userdata; |
19070062 | 773 | return bus_image_method_mark_read_only(message, i, error); |
ebd93cb6 LP |
774 | } |
775 | ||
19070062 | 776 | static int method_set_pool_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
d6ce17c7 LP |
777 | Manager *m = userdata; |
778 | uint64_t limit; | |
779 | int r; | |
780 | ||
19070062 LP |
781 | assert(message); |
782 | ||
d6ce17c7 LP |
783 | r = sd_bus_message_read(message, "t", &limit); |
784 | if (r < 0) | |
785 | return r; | |
786 | ||
787 | r = bus_verify_polkit_async( | |
788 | message, | |
789 | CAP_SYS_ADMIN, | |
790 | "org.freedesktop.machine1.manage-machines", | |
791 | false, | |
792 | UID_INVALID, | |
793 | &m->polkit_registry, | |
794 | error); | |
795 | if (r < 0) | |
796 | return r; | |
797 | if (r == 0) | |
798 | return 1; /* Will call us back */ | |
799 | ||
4cee5eed LP |
800 | /* Set up the machine directory if necessary */ |
801 | r = setup_machine_directory(limit, error); | |
802 | if (r < 0) | |
803 | return r; | |
804 | ||
26166c88 LP |
805 | r = btrfs_resize_loopback("/var/lib/machines", limit, false); |
806 | if (r == -ENOTTY) | |
807 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs."); | |
808 | if (r < 0 && r != -ENODEV) /* ignore ENODEV, as that's what is returned if the file system is not on loopback */ | |
efe02862 LP |
809 | return sd_bus_error_set_errnof(error, r, "Failed to adjust loopback limit: %m"); |
810 | ||
d6ce17c7 LP |
811 | r = btrfs_quota_limit("/var/lib/machines", limit); |
812 | if (r == -ENOTTY) | |
813 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs."); | |
26166c88 | 814 | if (r < 0) |
d6ce17c7 LP |
815 | return sd_bus_error_set_errnof(error, r, "Failed to adjust quota limit: %m"); |
816 | ||
817 | return sd_bus_reply_method_return(message, NULL); | |
818 | } | |
819 | ||
19070062 | 820 | static int method_set_image_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
d6ce17c7 LP |
821 | _cleanup_(image_unrefp) Image *i = NULL; |
822 | const char *name; | |
823 | int r; | |
824 | ||
19070062 LP |
825 | assert(message); |
826 | ||
d6ce17c7 LP |
827 | r = sd_bus_message_read(message, "s", &name); |
828 | if (r < 0) | |
829 | return r; | |
830 | ||
831 | if (!image_name_is_valid(name)) | |
832 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); | |
833 | ||
834 | r = image_find(name, &i); | |
835 | if (r < 0) | |
836 | return r; | |
837 | if (r == 0) | |
838 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); | |
839 | ||
840 | i->userdata = userdata; | |
19070062 | 841 | return bus_image_method_set_limit(message, i, error); |
d6ce17c7 LP |
842 | } |
843 | ||
c01ff965 LP |
844 | static int method_map_from_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
845 | _cleanup_fclose_ FILE *f = NULL; | |
846 | Manager *m = userdata; | |
847 | const char *name, *p; | |
848 | Machine *machine; | |
849 | uint32_t uid; | |
850 | int r; | |
851 | ||
852 | r = sd_bus_message_read(message, "su", &name, &uid); | |
853 | if (r < 0) | |
854 | return r; | |
855 | ||
856 | if (UID_IS_INVALID(uid)) | |
857 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
858 | ||
859 | machine = hashmap_get(m->machines, name); | |
860 | if (!machine) | |
861 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
862 | ||
863 | p = procfs_file_alloca(machine->leader, "uid_map"); | |
864 | f = fopen(p, "re"); | |
865 | if (!f) | |
866 | return -errno; | |
867 | ||
868 | for (;;) { | |
869 | uid_t uid_base, uid_shift, uid_range, converted; | |
870 | int k; | |
871 | ||
872 | errno = 0; | |
873 | k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); | |
874 | if (k < 0 && feof(f)) | |
875 | break; | |
876 | if (k != 3) { | |
877 | if (ferror(f) && errno != 0) | |
878 | return -errno; | |
879 | ||
880 | return -EIO; | |
881 | } | |
882 | ||
883 | if (uid < uid_base || uid >= uid_base + uid_range) | |
884 | continue; | |
885 | ||
886 | converted = uid - uid_base + uid_shift; | |
887 | if (UID_IS_INVALID(converted)) | |
888 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
889 | ||
890 | return sd_bus_reply_method_return(message, "u", (uint32_t) converted); | |
891 | } | |
892 | ||
893 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "Machine '%s' has no matching user mappings.", name); | |
894 | } | |
895 | ||
896 | static int method_map_to_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
897 | Manager *m = userdata; | |
898 | Machine *machine; | |
899 | uid_t uid; | |
900 | Iterator i; | |
901 | int r; | |
902 | ||
903 | r = sd_bus_message_read(message, "u", &uid); | |
904 | if (r < 0) | |
905 | return r; | |
906 | if (UID_IS_INVALID(uid)) | |
907 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
908 | if (uid < 0x10000) | |
909 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "User " UID_FMT " belongs to host UID range", uid); | |
910 | ||
911 | HASHMAP_FOREACH(machine, m->machines, i) { | |
912 | _cleanup_fclose_ FILE *f = NULL; | |
913 | char p[strlen("/proc//uid_map") + DECIMAL_STR_MAX(pid_t) + 1]; | |
914 | ||
915 | xsprintf(p, "/proc/" UID_FMT "/uid_map", machine->leader); | |
916 | f = fopen(p, "re"); | |
917 | if (!f) { | |
918 | log_warning_errno(errno, "Failed top open %s, ignoring,", p); | |
919 | continue; | |
920 | } | |
921 | ||
922 | for (;;) { | |
923 | _cleanup_free_ char *o = NULL; | |
924 | uid_t uid_base, uid_shift, uid_range, converted; | |
925 | int k; | |
926 | ||
927 | errno = 0; | |
928 | k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); | |
929 | if (k < 0 && feof(f)) | |
930 | break; | |
931 | if (k != 3) { | |
932 | if (ferror(f) && errno != 0) | |
933 | return -errno; | |
934 | ||
935 | return -EIO; | |
936 | } | |
937 | ||
938 | if (uid < uid_shift || uid >= uid_shift + uid_range) | |
939 | continue; | |
940 | ||
941 | converted = (uid - uid_shift + uid_base); | |
942 | if (UID_IS_INVALID(converted)) | |
943 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
944 | ||
945 | o = machine_bus_path(machine); | |
946 | if (!o) | |
947 | return -ENOMEM; | |
948 | ||
949 | return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); | |
950 | } | |
951 | } | |
952 | ||
953 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "No matching user mapping for " UID_FMT ".", uid); | |
954 | } | |
955 | ||
956 | static int method_map_from_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { | |
957 | _cleanup_fclose_ FILE *f = NULL; | |
958 | Manager *m = groupdata; | |
959 | const char *name, *p; | |
960 | Machine *machine; | |
961 | uint32_t gid; | |
962 | int r; | |
963 | ||
964 | r = sd_bus_message_read(message, "su", &name, &gid); | |
965 | if (r < 0) | |
966 | return r; | |
967 | ||
968 | if (GID_IS_INVALID(gid)) | |
969 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
970 | ||
971 | machine = hashmap_get(m->machines, name); | |
972 | if (!machine) | |
973 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
974 | ||
975 | p = procfs_file_alloca(machine->leader, "gid_map"); | |
976 | f = fopen(p, "re"); | |
977 | if (!f) | |
978 | return -errno; | |
979 | ||
980 | for (;;) { | |
981 | gid_t gid_base, gid_shift, gid_range, converted; | |
982 | int k; | |
983 | ||
984 | errno = 0; | |
985 | k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); | |
986 | if (k < 0 && feof(f)) | |
987 | break; | |
988 | if (k != 3) { | |
989 | if (ferror(f) && errno != 0) | |
990 | return -errno; | |
991 | ||
992 | return -EIO; | |
993 | } | |
994 | ||
995 | if (gid < gid_base || gid >= gid_base + gid_range) | |
996 | continue; | |
997 | ||
998 | converted = gid - gid_base + gid_shift; | |
999 | if (GID_IS_INVALID(converted)) | |
1000 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
1001 | ||
1002 | return sd_bus_reply_method_return(message, "u", (uint32_t) converted); | |
1003 | } | |
1004 | ||
1005 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Machine '%s' has no matching group mappings.", name); | |
1006 | } | |
1007 | ||
1008 | static int method_map_to_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { | |
1009 | Manager *m = groupdata; | |
1010 | Machine *machine; | |
1011 | gid_t gid; | |
1012 | Iterator i; | |
1013 | int r; | |
1014 | ||
1015 | r = sd_bus_message_read(message, "u", &gid); | |
1016 | if (r < 0) | |
1017 | return r; | |
1018 | if (GID_IS_INVALID(gid)) | |
1019 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
1020 | if (gid < 0x10000) | |
1021 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Group " GID_FMT " belongs to host GID range", gid); | |
1022 | ||
1023 | HASHMAP_FOREACH(machine, m->machines, i) { | |
1024 | _cleanup_fclose_ FILE *f = NULL; | |
1025 | char p[strlen("/proc//gid_map") + DECIMAL_STR_MAX(pid_t) + 1]; | |
1026 | ||
1027 | xsprintf(p, "/proc/" GID_FMT "/gid_map", machine->leader); | |
1028 | f = fopen(p, "re"); | |
1029 | if (!f) { | |
1030 | log_warning_errno(errno, "Failed top open %s, ignoring,", p); | |
1031 | continue; | |
1032 | } | |
1033 | ||
1034 | for (;;) { | |
1035 | _cleanup_free_ char *o = NULL; | |
1036 | gid_t gid_base, gid_shift, gid_range, converted; | |
1037 | int k; | |
1038 | ||
1039 | errno = 0; | |
1040 | k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); | |
1041 | if (k < 0 && feof(f)) | |
1042 | break; | |
1043 | if (k != 3) { | |
1044 | if (ferror(f) && errno != 0) | |
1045 | return -errno; | |
1046 | ||
1047 | return -EIO; | |
1048 | } | |
1049 | ||
1050 | if (gid < gid_shift || gid >= gid_shift + gid_range) | |
1051 | continue; | |
1052 | ||
1053 | converted = (gid - gid_shift + gid_base); | |
1054 | if (GID_IS_INVALID(converted)) | |
1055 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
1056 | ||
1057 | o = machine_bus_path(machine); | |
1058 | if (!o) | |
1059 | return -ENOMEM; | |
1060 | ||
1061 | return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "No matching group mapping for " GID_FMT ".", gid); | |
1066 | } | |
1067 | ||
c3350683 LP |
1068 | const sd_bus_vtable manager_vtable[] = { |
1069 | SD_BUS_VTABLE_START(0), | |
160e3793 LP |
1070 | SD_BUS_PROPERTY("PoolPath", "s", property_get_pool_path, 0, 0), |
1071 | SD_BUS_PROPERTY("PoolUsage", "t", property_get_pool_usage, 0, 0), | |
1072 | SD_BUS_PROPERTY("PoolLimit", "t", property_get_pool_limit, 0, 0), | |
adacb957 | 1073 | SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine, SD_BUS_VTABLE_UNPRIVILEGED), |
c2ce6a3d | 1074 | SD_BUS_METHOD("GetImage", "s", "o", method_get_image, SD_BUS_VTABLE_UNPRIVILEGED), |
adacb957 LP |
1075 | SD_BUS_METHOD("GetMachineByPID", "u", "o", method_get_machine_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), |
1076 | SD_BUS_METHOD("ListMachines", NULL, "a(ssso)", method_list_machines, SD_BUS_VTABLE_UNPRIVILEGED), | |
b6b18498 | 1077 | SD_BUS_METHOD("ListImages", NULL, "a(ssbttto)", method_list_images, SD_BUS_VTABLE_UNPRIVILEGED), |
c3350683 | 1078 | SD_BUS_METHOD("CreateMachine", "sayssusa(sv)", "o", method_create_machine, 0), |
9b5ed6fe | 1079 | SD_BUS_METHOD("CreateMachineWithNetwork", "sayssusaia(sv)", "o", method_create_machine_with_network, 0), |
8d07a7c4 | 1080 | SD_BUS_METHOD("RegisterMachine", "sayssus", "o", method_register_machine, 0), |
9b5ed6fe | 1081 | SD_BUS_METHOD("RegisterMachineWithNetwork", "sayssusai", "o", method_register_machine_with_network, 0), |
70244d1d LP |
1082 | SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, SD_BUS_VTABLE_UNPRIVILEGED), |
1083 | SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, SD_BUS_VTABLE_UNPRIVILEGED), | |
3a6fb33c | 1084 | SD_BUS_METHOD("GetMachineAddresses", "s", "a(iay)", method_get_machine_addresses, SD_BUS_VTABLE_UNPRIVILEGED), |
717603e3 | 1085 | SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release, SD_BUS_VTABLE_UNPRIVILEGED), |
40205d70 | 1086 | SD_BUS_METHOD("OpenMachinePTY", "s", "hs", method_open_machine_pty, 0), |
d04c1fb8 | 1087 | SD_BUS_METHOD("OpenMachineLogin", "s", "hs", method_open_machine_login, SD_BUS_VTABLE_UNPRIVILEGED), |
70244d1d LP |
1088 | SD_BUS_METHOD("BindMountMachine", "sssbb", NULL, method_bind_mount_machine, SD_BUS_VTABLE_UNPRIVILEGED), |
1089 | SD_BUS_METHOD("CopyFromMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), | |
1090 | SD_BUS_METHOD("CopyToMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), | |
1091 | SD_BUS_METHOD("RemoveImage", "s", NULL, method_remove_image, SD_BUS_VTABLE_UNPRIVILEGED), | |
1092 | SD_BUS_METHOD("RenameImage", "ss", NULL, method_rename_image, SD_BUS_VTABLE_UNPRIVILEGED), | |
1093 | SD_BUS_METHOD("CloneImage", "ssb", NULL, method_clone_image, SD_BUS_VTABLE_UNPRIVILEGED), | |
1094 | SD_BUS_METHOD("MarkImageReadOnly", "sb", NULL, method_mark_image_read_only, SD_BUS_VTABLE_UNPRIVILEGED), | |
d6ce17c7 LP |
1095 | SD_BUS_METHOD("SetPoolLimit", "t", NULL, method_set_pool_limit, SD_BUS_VTABLE_UNPRIVILEGED), |
1096 | SD_BUS_METHOD("SetImageLimit", "st", NULL, method_set_image_limit, SD_BUS_VTABLE_UNPRIVILEGED), | |
c01ff965 LP |
1097 | SD_BUS_METHOD("MapFromMachineUser", "su", "u", method_map_from_machine_user, SD_BUS_VTABLE_UNPRIVILEGED), |
1098 | SD_BUS_METHOD("MapToMachineUser", "u", "sou", method_map_to_machine_user, SD_BUS_VTABLE_UNPRIVILEGED), | |
1099 | SD_BUS_METHOD("MapFromMachineGroup", "su", "u", method_map_from_machine_group, SD_BUS_VTABLE_UNPRIVILEGED), | |
1100 | SD_BUS_METHOD("MapToMachineGroup", "u", "sou", method_map_to_machine_group, SD_BUS_VTABLE_UNPRIVILEGED), | |
c3350683 LP |
1101 | SD_BUS_SIGNAL("MachineNew", "so", 0), |
1102 | SD_BUS_SIGNAL("MachineRemoved", "so", 0), | |
1103 | SD_BUS_VTABLE_END | |
1104 | }; | |
1ee306e1 | 1105 | |
19070062 | 1106 | int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 | 1107 | const char *path, *result, *unit; |
1ee306e1 | 1108 | Manager *m = userdata; |
c3350683 LP |
1109 | Machine *machine; |
1110 | uint32_t id; | |
1111 | int r; | |
1ee306e1 | 1112 | |
1ee306e1 | 1113 | assert(message); |
c3350683 | 1114 | assert(m); |
1ee306e1 | 1115 | |
c3350683 LP |
1116 | r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result); |
1117 | if (r < 0) { | |
ebcf1f97 LP |
1118 | bus_log_parse_error(r); |
1119 | return r; | |
c3350683 | 1120 | } |
6797c324 | 1121 | |
c3350683 LP |
1122 | machine = hashmap_get(m->machine_units, unit); |
1123 | if (!machine) | |
1124 | return 0; | |
6797c324 | 1125 | |
c3350683 LP |
1126 | if (streq_ptr(path, machine->scope_job)) { |
1127 | free(machine->scope_job); | |
1128 | machine->scope_job = NULL; | |
6797c324 | 1129 | |
c3350683 LP |
1130 | if (machine->started) { |
1131 | if (streq(result, "done")) | |
1132 | machine_send_create_reply(machine, NULL); | |
1133 | else { | |
ebcf1f97 | 1134 | _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL; |
6797c324 | 1135 | |
ebcf1f97 | 1136 | sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result); |
6797c324 | 1137 | |
ebcf1f97 | 1138 | machine_send_create_reply(machine, &e); |
c3350683 LP |
1139 | } |
1140 | } else | |
1141 | machine_save(machine); | |
1ee306e1 LP |
1142 | } |
1143 | ||
c3350683 LP |
1144 | machine_add_to_gc_queue(machine); |
1145 | return 0; | |
1ee306e1 LP |
1146 | } |
1147 | ||
19070062 | 1148 | int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 | 1149 | _cleanup_free_ char *unit = NULL; |
9b420b3c | 1150 | const char *path, *interface; |
c3350683 LP |
1151 | Manager *m = userdata; |
1152 | Machine *machine; | |
ebcf1f97 | 1153 | int r; |
554604b3 | 1154 | |
c3350683 LP |
1155 | assert(message); |
1156 | assert(m); | |
554604b3 | 1157 | |
c3350683 LP |
1158 | path = sd_bus_message_get_path(message); |
1159 | if (!path) | |
554604b3 | 1160 | return 0; |
554604b3 | 1161 | |
ebcf1f97 | 1162 | r = unit_name_from_dbus_path(path, &unit); |
e5f5b5b9 LP |
1163 | if (r == -EINVAL) /* not for a unit */ |
1164 | return 0; | |
9b420b3c LP |
1165 | if (r < 0){ |
1166 | log_oom(); | |
1167 | return 0; | |
1168 | } | |
554604b3 | 1169 | |
c3350683 | 1170 | machine = hashmap_get(m->machine_units, unit); |
9b420b3c LP |
1171 | if (!machine) |
1172 | return 0; | |
1173 | ||
1174 | r = sd_bus_message_read(message, "s", &interface); | |
1175 | if (r < 0) { | |
1176 | bus_log_parse_error(r); | |
1177 | return 0; | |
1178 | } | |
1179 | ||
1180 | if (streq(interface, "org.freedesktop.systemd1.Unit")) { | |
1181 | struct properties { | |
1182 | char *active_state; | |
1183 | char *sub_state; | |
1184 | } properties = {}; | |
554604b3 | 1185 | |
9b420b3c LP |
1186 | const struct bus_properties_map map[] = { |
1187 | { "ActiveState", "s", NULL, offsetof(struct properties, active_state) }, | |
1188 | { "SubState", "s", NULL, offsetof(struct properties, sub_state) }, | |
1189 | {} | |
1190 | }; | |
1191 | ||
1192 | r = bus_message_map_properties_changed(message, map, &properties); | |
1193 | if (r < 0) | |
1194 | bus_log_parse_error(r); | |
1195 | else if (streq_ptr(properties.active_state, "inactive") || | |
1196 | streq_ptr(properties.active_state, "failed") || | |
1197 | streq_ptr(properties.sub_state, "auto-restart")) | |
1198 | machine_release_unit(machine); | |
1199 | ||
1200 | free(properties.active_state); | |
1201 | free(properties.sub_state); | |
1202 | } | |
1203 | ||
1204 | machine_add_to_gc_queue(machine); | |
c3350683 LP |
1205 | return 0; |
1206 | } | |
554604b3 | 1207 | |
19070062 | 1208 | int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 LP |
1209 | const char *path, *unit; |
1210 | Manager *m = userdata; | |
1211 | Machine *machine; | |
1212 | int r; | |
554604b3 | 1213 | |
c3350683 LP |
1214 | assert(message); |
1215 | assert(m); | |
554604b3 | 1216 | |
c3350683 LP |
1217 | r = sd_bus_message_read(message, "so", &unit, &path); |
1218 | if (r < 0) { | |
ebcf1f97 | 1219 | bus_log_parse_error(r); |
9b420b3c | 1220 | return 0; |
554604b3 LP |
1221 | } |
1222 | ||
c3350683 | 1223 | machine = hashmap_get(m->machine_units, unit); |
9b420b3c LP |
1224 | if (!machine) |
1225 | return 0; | |
1226 | ||
1227 | machine_release_unit(machine); | |
1228 | machine_add_to_gc_queue(machine); | |
554604b3 | 1229 | |
c3350683 LP |
1230 | return 0; |
1231 | } | |
554604b3 | 1232 | |
19070062 | 1233 | int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 | 1234 | Manager *m = userdata; |
a658cafa LP |
1235 | Machine *machine; |
1236 | Iterator i; | |
c3350683 | 1237 | int b, r; |
554604b3 | 1238 | |
19070062 LP |
1239 | assert(message); |
1240 | assert(m); | |
554604b3 | 1241 | |
c3350683 LP |
1242 | r = sd_bus_message_read(message, "b", &b); |
1243 | if (r < 0) { | |
ebcf1f97 LP |
1244 | bus_log_parse_error(r); |
1245 | return r; | |
554604b3 | 1246 | } |
a658cafa LP |
1247 | if (b) |
1248 | return 0; | |
554604b3 | 1249 | |
a658cafa LP |
1250 | /* systemd finished reloading, let's recheck all our machines */ |
1251 | log_debug("System manager has been reloaded, rechecking machines..."); | |
554604b3 | 1252 | |
a658cafa LP |
1253 | HASHMAP_FOREACH(machine, m->machines, i) |
1254 | machine_add_to_gc_queue(machine); | |
554604b3 LP |
1255 | |
1256 | return 0; | |
1257 | } | |
1258 | ||
1ee306e1 LP |
1259 | int manager_start_scope( |
1260 | Manager *manager, | |
1261 | const char *scope, | |
1262 | pid_t pid, | |
1263 | const char *slice, | |
1264 | const char *description, | |
c3350683 LP |
1265 | sd_bus_message *more_properties, |
1266 | sd_bus_error *error, | |
1ee306e1 LP |
1267 | char **job) { |
1268 | ||
c3350683 | 1269 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; |
554604b3 | 1270 | int r; |
1ee306e1 LP |
1271 | |
1272 | assert(manager); | |
1273 | assert(scope); | |
1274 | assert(pid > 1); | |
1275 | ||
c3350683 LP |
1276 | r = sd_bus_message_new_method_call( |
1277 | manager->bus, | |
151b9b96 | 1278 | &m, |
1ee306e1 LP |
1279 | "org.freedesktop.systemd1", |
1280 | "/org/freedesktop/systemd1", | |
1281 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 1282 | "StartTransientUnit"); |
c3350683 LP |
1283 | if (r < 0) |
1284 | return r; | |
1ee306e1 | 1285 | |
a658cafa | 1286 | r = sd_bus_message_append(m, "ss", strempty(scope), "fail"); |
c3350683 LP |
1287 | if (r < 0) |
1288 | return r; | |
1ee306e1 | 1289 | |
c3350683 LP |
1290 | r = sd_bus_message_open_container(m, 'a', "(sv)"); |
1291 | if (r < 0) | |
1292 | return r; | |
1ee306e1 LP |
1293 | |
1294 | if (!isempty(slice)) { | |
c3350683 LP |
1295 | r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice); |
1296 | if (r < 0) | |
1297 | return r; | |
1ee306e1 LP |
1298 | } |
1299 | ||
1300 | if (!isempty(description)) { | |
c3350683 LP |
1301 | r = sd_bus_message_append(m, "(sv)", "Description", "s", description); |
1302 | if (r < 0) | |
1303 | return r; | |
1ee306e1 LP |
1304 | } |
1305 | ||
c3350683 LP |
1306 | r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid); |
1307 | if (r < 0) | |
1308 | return r; | |
554604b3 | 1309 | |
a931ad47 LP |
1310 | r = sd_bus_message_append(m, "(sv)", "Delegate", "b", 1); |
1311 | if (r < 0) | |
1312 | return r; | |
1313 | ||
554604b3 | 1314 | if (more_properties) { |
c3350683 | 1315 | r = sd_bus_message_copy(m, more_properties, true); |
554604b3 LP |
1316 | if (r < 0) |
1317 | return r; | |
1318 | } | |
1319 | ||
c3350683 LP |
1320 | r = sd_bus_message_close_container(m); |
1321 | if (r < 0) | |
1322 | return r; | |
1ee306e1 | 1323 | |
86b8d289 LP |
1324 | r = sd_bus_message_append(m, "a(sa(sv))", 0); |
1325 | if (r < 0) | |
1326 | return r; | |
1327 | ||
c49b30a2 | 1328 | r = sd_bus_call(manager->bus, m, 0, error, &reply); |
c3350683 LP |
1329 | if (r < 0) |
1330 | return r; | |
1ee306e1 LP |
1331 | |
1332 | if (job) { | |
1333 | const char *j; | |
1334 | char *copy; | |
1335 | ||
c3350683 LP |
1336 | r = sd_bus_message_read(reply, "o", &j); |
1337 | if (r < 0) | |
1338 | return r; | |
1ee306e1 LP |
1339 | |
1340 | copy = strdup(j); | |
1341 | if (!copy) | |
1342 | return -ENOMEM; | |
1343 | ||
1344 | *job = copy; | |
1345 | } | |
1346 | ||
c3350683 | 1347 | return 1; |
1ee306e1 LP |
1348 | } |
1349 | ||
c3350683 LP |
1350 | int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { |
1351 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
1ee306e1 LP |
1352 | int r; |
1353 | ||
1354 | assert(manager); | |
1355 | assert(unit); | |
1356 | ||
c3350683 | 1357 | r = sd_bus_call_method( |
1ee306e1 LP |
1358 | manager->bus, |
1359 | "org.freedesktop.systemd1", | |
1360 | "/org/freedesktop/systemd1", | |
1361 | "org.freedesktop.systemd1.Manager", | |
1362 | "StopUnit", | |
1ee306e1 | 1363 | error, |
c3350683 LP |
1364 | &reply, |
1365 | "ss", unit, "fail"); | |
1ee306e1 | 1366 | if (r < 0) { |
c3350683 LP |
1367 | if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || |
1368 | sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) { | |
6797c324 LP |
1369 | |
1370 | if (job) | |
1371 | *job = NULL; | |
1372 | ||
c3350683 | 1373 | sd_bus_error_free(error); |
6797c324 LP |
1374 | return 0; |
1375 | } | |
1376 | ||
1ee306e1 LP |
1377 | return r; |
1378 | } | |
1379 | ||
1380 | if (job) { | |
1381 | const char *j; | |
1382 | char *copy; | |
1383 | ||
c3350683 LP |
1384 | r = sd_bus_message_read(reply, "o", &j); |
1385 | if (r < 0) | |
1386 | return r; | |
1ee306e1 LP |
1387 | |
1388 | copy = strdup(j); | |
1389 | if (!copy) | |
1390 | return -ENOMEM; | |
1391 | ||
1392 | *job = copy; | |
1393 | } | |
1394 | ||
6797c324 | 1395 | return 1; |
1ee306e1 LP |
1396 | } |
1397 | ||
de58a50e | 1398 | int manager_kill_unit(Manager *manager, const char *unit, int signo, sd_bus_error *error) { |
1ee306e1 LP |
1399 | assert(manager); |
1400 | assert(unit); | |
1401 | ||
a658cafa | 1402 | return sd_bus_call_method( |
1ee306e1 LP |
1403 | manager->bus, |
1404 | "org.freedesktop.systemd1", | |
1405 | "/org/freedesktop/systemd1", | |
1406 | "org.freedesktop.systemd1.Manager", | |
1407 | "KillUnit", | |
1ee306e1 | 1408 | error, |
a658cafa | 1409 | NULL, |
de58a50e | 1410 | "ssi", unit, "all", signo); |
1ee306e1 LP |
1411 | } |
1412 | ||
1413 | int manager_unit_is_active(Manager *manager, const char *unit) { | |
c3350683 LP |
1414 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
1415 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
1ee306e1 | 1416 | _cleanup_free_ char *path = NULL; |
1ee306e1 | 1417 | const char *state; |
1ee306e1 LP |
1418 | int r; |
1419 | ||
1420 | assert(manager); | |
1421 | assert(unit); | |
1422 | ||
1ee306e1 LP |
1423 | path = unit_dbus_path_from_name(unit); |
1424 | if (!path) | |
1425 | return -ENOMEM; | |
1426 | ||
c3350683 | 1427 | r = sd_bus_get_property( |
1ee306e1 LP |
1428 | manager->bus, |
1429 | "org.freedesktop.systemd1", | |
1430 | path, | |
c3350683 LP |
1431 | "org.freedesktop.systemd1.Unit", |
1432 | "ActiveState", | |
1ee306e1 | 1433 | &error, |
c3350683 LP |
1434 | &reply, |
1435 | "s"); | |
1ee306e1 | 1436 | if (r < 0) { |
c3350683 LP |
1437 | if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || |
1438 | sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) | |
6797c324 | 1439 | return true; |
6797c324 | 1440 | |
c3350683 LP |
1441 | if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) || |
1442 | sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED)) | |
6797c324 | 1443 | return false; |
6797c324 | 1444 | |
1ee306e1 LP |
1445 | return r; |
1446 | } | |
1447 | ||
c3350683 LP |
1448 | r = sd_bus_message_read(reply, "s", &state); |
1449 | if (r < 0) | |
1ee306e1 | 1450 | return -EINVAL; |
1ee306e1 | 1451 | |
9b420b3c | 1452 | return !STR_IN_SET(state, "inactive", "failed"); |
1ee306e1 | 1453 | } |
bd16acf3 | 1454 | |
c3350683 LP |
1455 | int manager_job_is_active(Manager *manager, const char *path) { |
1456 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
1457 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
1458 | int r; | |
bd16acf3 | 1459 | |
c3350683 LP |
1460 | assert(manager); |
1461 | assert(path); | |
bd16acf3 | 1462 | |
c3350683 LP |
1463 | r = sd_bus_get_property( |
1464 | manager->bus, | |
1465 | "org.freedesktop.systemd1", | |
1466 | path, | |
1467 | "org.freedesktop.systemd1.Job", | |
1468 | "State", | |
1469 | &error, | |
1470 | &reply, | |
1471 | "s"); | |
1472 | if (r < 0) { | |
1473 | if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || | |
1474 | sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) | |
1475 | return true; | |
bd16acf3 | 1476 | |
c3350683 LP |
1477 | if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT)) |
1478 | return false; | |
bd16acf3 | 1479 | |
bd16acf3 | 1480 | return r; |
c3350683 | 1481 | } |
bd16acf3 | 1482 | |
c3350683 LP |
1483 | /* We don't actually care about the state really. The fact |
1484 | * that we could read the job state is enough for us */ | |
bd16acf3 | 1485 | |
c3350683 | 1486 | return true; |
bd16acf3 | 1487 | } |
ab49725f KS |
1488 | |
1489 | int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) { | |
1490 | _cleanup_free_ char *unit = NULL; | |
1491 | Machine *mm; | |
1492 | int r; | |
1493 | ||
1494 | assert(m); | |
1495 | assert(pid >= 1); | |
1496 | assert(machine); | |
1497 | ||
1498 | r = cg_pid_get_unit(pid, &unit); | |
1499 | if (r < 0) | |
1500 | mm = hashmap_get(m->machine_leaders, UINT_TO_PTR(pid)); | |
1501 | else | |
1502 | mm = hashmap_get(m->machine_units, unit); | |
1503 | ||
1504 | if (!mm) | |
1505 | return 0; | |
1506 | ||
1507 | *machine = mm; | |
1508 | return 1; | |
1509 | } | |
1510 | ||
1511 | int manager_add_machine(Manager *m, const char *name, Machine **_machine) { | |
1512 | Machine *machine; | |
1513 | ||
1514 | assert(m); | |
1515 | assert(name); | |
1516 | ||
1517 | machine = hashmap_get(m->machines, name); | |
1518 | if (!machine) { | |
1519 | machine = machine_new(m, name); | |
1520 | if (!machine) | |
1521 | return -ENOMEM; | |
1522 | } | |
1523 | ||
1524 | if (_machine) | |
1525 | *_machine = machine; | |
1526 | ||
1527 | return 0; | |
1528 | } |