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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 | ||
49af9e13 LP |
640 | static int method_open_machine_shell(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
641 | Manager *m = userdata; | |
642 | Machine *machine; | |
643 | const char *name; | |
644 | ||
645 | int r; | |
646 | ||
647 | assert(message); | |
648 | assert(m); | |
649 | ||
650 | r = sd_bus_message_read(message, "s", &name); | |
651 | if (r < 0) | |
652 | return r; | |
653 | ||
654 | machine = hashmap_get(m->machines, name); | |
655 | if (!machine) | |
656 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
657 | ||
658 | return bus_machine_method_open_shell(message, machine, error); | |
659 | } | |
660 | ||
19070062 | 661 | static int method_bind_mount_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
90adaa25 LP |
662 | Manager *m = userdata; |
663 | Machine *machine; | |
664 | const char *name; | |
665 | int r; | |
666 | ||
90adaa25 LP |
667 | assert(message); |
668 | assert(m); | |
669 | ||
670 | r = sd_bus_message_read(message, "s", &name); | |
671 | if (r < 0) | |
672 | return r; | |
673 | ||
674 | machine = hashmap_get(m->machines, name); | |
675 | if (!machine) | |
676 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
677 | ||
19070062 | 678 | return bus_machine_method_bind_mount(message, machine, error); |
90adaa25 LP |
679 | } |
680 | ||
19070062 | 681 | static int method_copy_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
0370612e LP |
682 | Manager *m = userdata; |
683 | Machine *machine; | |
684 | const char *name; | |
685 | int r; | |
686 | ||
0370612e LP |
687 | assert(message); |
688 | assert(m); | |
689 | ||
690 | r = sd_bus_message_read(message, "s", &name); | |
691 | if (r < 0) | |
692 | return r; | |
693 | ||
694 | machine = hashmap_get(m->machines, name); | |
695 | if (!machine) | |
696 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
697 | ||
19070062 | 698 | return bus_machine_method_copy(message, machine, error); |
0370612e LP |
699 | } |
700 | ||
19070062 | 701 | static int method_remove_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
08682124 LP |
702 | _cleanup_(image_unrefp) Image* i = NULL; |
703 | const char *name; | |
704 | int r; | |
705 | ||
08682124 LP |
706 | assert(message); |
707 | ||
708 | r = sd_bus_message_read(message, "s", &name); | |
709 | if (r < 0) | |
710 | return r; | |
711 | ||
712 | if (!image_name_is_valid(name)) | |
713 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); | |
714 | ||
715 | r = image_find(name, &i); | |
716 | if (r < 0) | |
717 | return r; | |
718 | if (r == 0) | |
719 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); | |
720 | ||
70244d1d | 721 | i->userdata = userdata; |
19070062 | 722 | return bus_image_method_remove(message, i, error); |
08682124 LP |
723 | } |
724 | ||
19070062 | 725 | static int method_rename_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
ebd93cb6 | 726 | _cleanup_(image_unrefp) Image* i = NULL; |
1ddb263d | 727 | const char *old_name; |
ebd93cb6 LP |
728 | int r; |
729 | ||
ebd93cb6 LP |
730 | assert(message); |
731 | ||
1ddb263d | 732 | r = sd_bus_message_read(message, "s", &old_name); |
ebd93cb6 LP |
733 | if (r < 0) |
734 | return r; | |
735 | ||
736 | if (!image_name_is_valid(old_name)) | |
737 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); | |
ebd93cb6 LP |
738 | |
739 | r = image_find(old_name, &i); | |
740 | if (r < 0) | |
741 | return r; | |
742 | if (r == 0) | |
743 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); | |
744 | ||
70244d1d | 745 | i->userdata = userdata; |
19070062 | 746 | return bus_image_method_rename(message, i, error); |
ebd93cb6 LP |
747 | } |
748 | ||
19070062 | 749 | static int method_clone_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
ebd93cb6 | 750 | _cleanup_(image_unrefp) Image *i = NULL; |
1ddb263d LP |
751 | const char *old_name; |
752 | int r; | |
ebd93cb6 | 753 | |
19070062 LP |
754 | assert(message); |
755 | ||
1ddb263d | 756 | r = sd_bus_message_read(message, "s", &old_name); |
ebd93cb6 LP |
757 | if (r < 0) |
758 | return r; | |
759 | ||
760 | if (!image_name_is_valid(old_name)) | |
761 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); | |
ebd93cb6 LP |
762 | |
763 | r = image_find(old_name, &i); | |
764 | if (r < 0) | |
765 | return r; | |
766 | if (r == 0) | |
767 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); | |
768 | ||
70244d1d | 769 | i->userdata = userdata; |
19070062 | 770 | return bus_image_method_clone(message, i, error); |
ebd93cb6 LP |
771 | } |
772 | ||
19070062 | 773 | static int method_mark_image_read_only(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
ebd93cb6 LP |
774 | _cleanup_(image_unrefp) Image *i = NULL; |
775 | const char *name; | |
1ddb263d | 776 | int r; |
ebd93cb6 | 777 | |
19070062 LP |
778 | assert(message); |
779 | ||
1ddb263d | 780 | r = sd_bus_message_read(message, "s", &name); |
ebd93cb6 LP |
781 | if (r < 0) |
782 | return r; | |
783 | ||
784 | if (!image_name_is_valid(name)) | |
785 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); | |
786 | ||
787 | r = image_find(name, &i); | |
788 | if (r < 0) | |
789 | return r; | |
790 | if (r == 0) | |
791 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); | |
792 | ||
70244d1d | 793 | i->userdata = userdata; |
19070062 | 794 | return bus_image_method_mark_read_only(message, i, error); |
ebd93cb6 LP |
795 | } |
796 | ||
19070062 | 797 | static int method_set_pool_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
d6ce17c7 LP |
798 | Manager *m = userdata; |
799 | uint64_t limit; | |
800 | int r; | |
801 | ||
19070062 LP |
802 | assert(message); |
803 | ||
d6ce17c7 LP |
804 | r = sd_bus_message_read(message, "t", &limit); |
805 | if (r < 0) | |
806 | return r; | |
807 | ||
808 | r = bus_verify_polkit_async( | |
809 | message, | |
810 | CAP_SYS_ADMIN, | |
811 | "org.freedesktop.machine1.manage-machines", | |
812 | false, | |
813 | UID_INVALID, | |
814 | &m->polkit_registry, | |
815 | error); | |
816 | if (r < 0) | |
817 | return r; | |
818 | if (r == 0) | |
819 | return 1; /* Will call us back */ | |
820 | ||
4cee5eed LP |
821 | /* Set up the machine directory if necessary */ |
822 | r = setup_machine_directory(limit, error); | |
823 | if (r < 0) | |
824 | return r; | |
825 | ||
26166c88 LP |
826 | r = btrfs_resize_loopback("/var/lib/machines", limit, false); |
827 | if (r == -ENOTTY) | |
828 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs."); | |
829 | if (r < 0 && r != -ENODEV) /* ignore ENODEV, as that's what is returned if the file system is not on loopback */ | |
efe02862 LP |
830 | return sd_bus_error_set_errnof(error, r, "Failed to adjust loopback limit: %m"); |
831 | ||
d6ce17c7 LP |
832 | r = btrfs_quota_limit("/var/lib/machines", limit); |
833 | if (r == -ENOTTY) | |
834 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs."); | |
26166c88 | 835 | if (r < 0) |
d6ce17c7 LP |
836 | return sd_bus_error_set_errnof(error, r, "Failed to adjust quota limit: %m"); |
837 | ||
838 | return sd_bus_reply_method_return(message, NULL); | |
839 | } | |
840 | ||
19070062 | 841 | static int method_set_image_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
d6ce17c7 LP |
842 | _cleanup_(image_unrefp) Image *i = NULL; |
843 | const char *name; | |
844 | int r; | |
845 | ||
19070062 LP |
846 | assert(message); |
847 | ||
d6ce17c7 LP |
848 | r = sd_bus_message_read(message, "s", &name); |
849 | if (r < 0) | |
850 | return r; | |
851 | ||
852 | if (!image_name_is_valid(name)) | |
853 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); | |
854 | ||
855 | r = image_find(name, &i); | |
856 | if (r < 0) | |
857 | return r; | |
858 | if (r == 0) | |
859 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); | |
860 | ||
861 | i->userdata = userdata; | |
19070062 | 862 | return bus_image_method_set_limit(message, i, error); |
d6ce17c7 LP |
863 | } |
864 | ||
c01ff965 LP |
865 | static int method_map_from_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
866 | _cleanup_fclose_ FILE *f = NULL; | |
867 | Manager *m = userdata; | |
868 | const char *name, *p; | |
869 | Machine *machine; | |
870 | uint32_t uid; | |
871 | int r; | |
872 | ||
873 | r = sd_bus_message_read(message, "su", &name, &uid); | |
874 | if (r < 0) | |
875 | return r; | |
876 | ||
877 | if (UID_IS_INVALID(uid)) | |
878 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
879 | ||
880 | machine = hashmap_get(m->machines, name); | |
881 | if (!machine) | |
882 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
883 | ||
884 | p = procfs_file_alloca(machine->leader, "uid_map"); | |
885 | f = fopen(p, "re"); | |
886 | if (!f) | |
887 | return -errno; | |
888 | ||
889 | for (;;) { | |
890 | uid_t uid_base, uid_shift, uid_range, converted; | |
891 | int k; | |
892 | ||
893 | errno = 0; | |
894 | k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); | |
895 | if (k < 0 && feof(f)) | |
896 | break; | |
897 | if (k != 3) { | |
898 | if (ferror(f) && errno != 0) | |
899 | return -errno; | |
900 | ||
901 | return -EIO; | |
902 | } | |
903 | ||
904 | if (uid < uid_base || uid >= uid_base + uid_range) | |
905 | continue; | |
906 | ||
907 | converted = uid - uid_base + uid_shift; | |
908 | if (UID_IS_INVALID(converted)) | |
909 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
910 | ||
911 | return sd_bus_reply_method_return(message, "u", (uint32_t) converted); | |
912 | } | |
913 | ||
914 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "Machine '%s' has no matching user mappings.", name); | |
915 | } | |
916 | ||
917 | static int method_map_to_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
918 | Manager *m = userdata; | |
919 | Machine *machine; | |
920 | uid_t uid; | |
921 | Iterator i; | |
922 | int r; | |
923 | ||
924 | r = sd_bus_message_read(message, "u", &uid); | |
925 | if (r < 0) | |
926 | return r; | |
927 | if (UID_IS_INVALID(uid)) | |
928 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
929 | if (uid < 0x10000) | |
930 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "User " UID_FMT " belongs to host UID range", uid); | |
931 | ||
932 | HASHMAP_FOREACH(machine, m->machines, i) { | |
933 | _cleanup_fclose_ FILE *f = NULL; | |
934 | char p[strlen("/proc//uid_map") + DECIMAL_STR_MAX(pid_t) + 1]; | |
935 | ||
936 | xsprintf(p, "/proc/" UID_FMT "/uid_map", machine->leader); | |
937 | f = fopen(p, "re"); | |
938 | if (!f) { | |
939 | log_warning_errno(errno, "Failed top open %s, ignoring,", p); | |
940 | continue; | |
941 | } | |
942 | ||
943 | for (;;) { | |
944 | _cleanup_free_ char *o = NULL; | |
945 | uid_t uid_base, uid_shift, uid_range, converted; | |
946 | int k; | |
947 | ||
948 | errno = 0; | |
949 | k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); | |
950 | if (k < 0 && feof(f)) | |
951 | break; | |
952 | if (k != 3) { | |
953 | if (ferror(f) && errno != 0) | |
954 | return -errno; | |
955 | ||
956 | return -EIO; | |
957 | } | |
958 | ||
959 | if (uid < uid_shift || uid >= uid_shift + uid_range) | |
960 | continue; | |
961 | ||
962 | converted = (uid - uid_shift + uid_base); | |
963 | if (UID_IS_INVALID(converted)) | |
964 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); | |
965 | ||
966 | o = machine_bus_path(machine); | |
967 | if (!o) | |
968 | return -ENOMEM; | |
969 | ||
970 | return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); | |
971 | } | |
972 | } | |
973 | ||
974 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "No matching user mapping for " UID_FMT ".", uid); | |
975 | } | |
976 | ||
977 | static int method_map_from_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { | |
978 | _cleanup_fclose_ FILE *f = NULL; | |
979 | Manager *m = groupdata; | |
980 | const char *name, *p; | |
981 | Machine *machine; | |
982 | uint32_t gid; | |
983 | int r; | |
984 | ||
985 | r = sd_bus_message_read(message, "su", &name, &gid); | |
986 | if (r < 0) | |
987 | return r; | |
988 | ||
989 | if (GID_IS_INVALID(gid)) | |
990 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
991 | ||
992 | machine = hashmap_get(m->machines, name); | |
993 | if (!machine) | |
994 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); | |
995 | ||
996 | p = procfs_file_alloca(machine->leader, "gid_map"); | |
997 | f = fopen(p, "re"); | |
998 | if (!f) | |
999 | return -errno; | |
1000 | ||
1001 | for (;;) { | |
1002 | gid_t gid_base, gid_shift, gid_range, converted; | |
1003 | int k; | |
1004 | ||
1005 | errno = 0; | |
1006 | k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); | |
1007 | if (k < 0 && feof(f)) | |
1008 | break; | |
1009 | if (k != 3) { | |
1010 | if (ferror(f) && errno != 0) | |
1011 | return -errno; | |
1012 | ||
1013 | return -EIO; | |
1014 | } | |
1015 | ||
1016 | if (gid < gid_base || gid >= gid_base + gid_range) | |
1017 | continue; | |
1018 | ||
1019 | converted = gid - gid_base + gid_shift; | |
1020 | if (GID_IS_INVALID(converted)) | |
1021 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
1022 | ||
1023 | return sd_bus_reply_method_return(message, "u", (uint32_t) converted); | |
1024 | } | |
1025 | ||
1026 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Machine '%s' has no matching group mappings.", name); | |
1027 | } | |
1028 | ||
1029 | static int method_map_to_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { | |
1030 | Manager *m = groupdata; | |
1031 | Machine *machine; | |
1032 | gid_t gid; | |
1033 | Iterator i; | |
1034 | int r; | |
1035 | ||
1036 | r = sd_bus_message_read(message, "u", &gid); | |
1037 | if (r < 0) | |
1038 | return r; | |
1039 | if (GID_IS_INVALID(gid)) | |
1040 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
1041 | if (gid < 0x10000) | |
1042 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Group " GID_FMT " belongs to host GID range", gid); | |
1043 | ||
1044 | HASHMAP_FOREACH(machine, m->machines, i) { | |
1045 | _cleanup_fclose_ FILE *f = NULL; | |
1046 | char p[strlen("/proc//gid_map") + DECIMAL_STR_MAX(pid_t) + 1]; | |
1047 | ||
1048 | xsprintf(p, "/proc/" GID_FMT "/gid_map", machine->leader); | |
1049 | f = fopen(p, "re"); | |
1050 | if (!f) { | |
1051 | log_warning_errno(errno, "Failed top open %s, ignoring,", p); | |
1052 | continue; | |
1053 | } | |
1054 | ||
1055 | for (;;) { | |
1056 | _cleanup_free_ char *o = NULL; | |
1057 | gid_t gid_base, gid_shift, gid_range, converted; | |
1058 | int k; | |
1059 | ||
1060 | errno = 0; | |
1061 | k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); | |
1062 | if (k < 0 && feof(f)) | |
1063 | break; | |
1064 | if (k != 3) { | |
1065 | if (ferror(f) && errno != 0) | |
1066 | return -errno; | |
1067 | ||
1068 | return -EIO; | |
1069 | } | |
1070 | ||
1071 | if (gid < gid_shift || gid >= gid_shift + gid_range) | |
1072 | continue; | |
1073 | ||
1074 | converted = (gid - gid_shift + gid_base); | |
1075 | if (GID_IS_INVALID(converted)) | |
1076 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); | |
1077 | ||
1078 | o = machine_bus_path(machine); | |
1079 | if (!o) | |
1080 | return -ENOMEM; | |
1081 | ||
1082 | return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "No matching group mapping for " GID_FMT ".", gid); | |
1087 | } | |
1088 | ||
c3350683 LP |
1089 | const sd_bus_vtable manager_vtable[] = { |
1090 | SD_BUS_VTABLE_START(0), | |
160e3793 LP |
1091 | SD_BUS_PROPERTY("PoolPath", "s", property_get_pool_path, 0, 0), |
1092 | SD_BUS_PROPERTY("PoolUsage", "t", property_get_pool_usage, 0, 0), | |
1093 | SD_BUS_PROPERTY("PoolLimit", "t", property_get_pool_limit, 0, 0), | |
adacb957 | 1094 | SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine, SD_BUS_VTABLE_UNPRIVILEGED), |
c2ce6a3d | 1095 | SD_BUS_METHOD("GetImage", "s", "o", method_get_image, SD_BUS_VTABLE_UNPRIVILEGED), |
adacb957 LP |
1096 | SD_BUS_METHOD("GetMachineByPID", "u", "o", method_get_machine_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), |
1097 | SD_BUS_METHOD("ListMachines", NULL, "a(ssso)", method_list_machines, SD_BUS_VTABLE_UNPRIVILEGED), | |
b6b18498 | 1098 | SD_BUS_METHOD("ListImages", NULL, "a(ssbttto)", method_list_images, SD_BUS_VTABLE_UNPRIVILEGED), |
c3350683 | 1099 | SD_BUS_METHOD("CreateMachine", "sayssusa(sv)", "o", method_create_machine, 0), |
9b5ed6fe | 1100 | SD_BUS_METHOD("CreateMachineWithNetwork", "sayssusaia(sv)", "o", method_create_machine_with_network, 0), |
8d07a7c4 | 1101 | SD_BUS_METHOD("RegisterMachine", "sayssus", "o", method_register_machine, 0), |
9b5ed6fe | 1102 | SD_BUS_METHOD("RegisterMachineWithNetwork", "sayssusai", "o", method_register_machine_with_network, 0), |
70244d1d LP |
1103 | SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, SD_BUS_VTABLE_UNPRIVILEGED), |
1104 | SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, SD_BUS_VTABLE_UNPRIVILEGED), | |
3a6fb33c | 1105 | SD_BUS_METHOD("GetMachineAddresses", "s", "a(iay)", method_get_machine_addresses, SD_BUS_VTABLE_UNPRIVILEGED), |
717603e3 | 1106 | SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release, SD_BUS_VTABLE_UNPRIVILEGED), |
40205d70 | 1107 | SD_BUS_METHOD("OpenMachinePTY", "s", "hs", method_open_machine_pty, 0), |
d04c1fb8 | 1108 | SD_BUS_METHOD("OpenMachineLogin", "s", "hs", method_open_machine_login, SD_BUS_VTABLE_UNPRIVILEGED), |
49af9e13 | 1109 | SD_BUS_METHOD("OpenMachineShell", "sssasas", "hs", method_open_machine_shell, SD_BUS_VTABLE_UNPRIVILEGED), |
70244d1d LP |
1110 | SD_BUS_METHOD("BindMountMachine", "sssbb", NULL, method_bind_mount_machine, SD_BUS_VTABLE_UNPRIVILEGED), |
1111 | SD_BUS_METHOD("CopyFromMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), | |
1112 | SD_BUS_METHOD("CopyToMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), | |
1113 | SD_BUS_METHOD("RemoveImage", "s", NULL, method_remove_image, SD_BUS_VTABLE_UNPRIVILEGED), | |
1114 | SD_BUS_METHOD("RenameImage", "ss", NULL, method_rename_image, SD_BUS_VTABLE_UNPRIVILEGED), | |
1115 | SD_BUS_METHOD("CloneImage", "ssb", NULL, method_clone_image, SD_BUS_VTABLE_UNPRIVILEGED), | |
1116 | SD_BUS_METHOD("MarkImageReadOnly", "sb", NULL, method_mark_image_read_only, SD_BUS_VTABLE_UNPRIVILEGED), | |
d6ce17c7 LP |
1117 | SD_BUS_METHOD("SetPoolLimit", "t", NULL, method_set_pool_limit, SD_BUS_VTABLE_UNPRIVILEGED), |
1118 | SD_BUS_METHOD("SetImageLimit", "st", NULL, method_set_image_limit, SD_BUS_VTABLE_UNPRIVILEGED), | |
c01ff965 LP |
1119 | SD_BUS_METHOD("MapFromMachineUser", "su", "u", method_map_from_machine_user, SD_BUS_VTABLE_UNPRIVILEGED), |
1120 | SD_BUS_METHOD("MapToMachineUser", "u", "sou", method_map_to_machine_user, SD_BUS_VTABLE_UNPRIVILEGED), | |
1121 | SD_BUS_METHOD("MapFromMachineGroup", "su", "u", method_map_from_machine_group, SD_BUS_VTABLE_UNPRIVILEGED), | |
1122 | SD_BUS_METHOD("MapToMachineGroup", "u", "sou", method_map_to_machine_group, SD_BUS_VTABLE_UNPRIVILEGED), | |
c3350683 LP |
1123 | SD_BUS_SIGNAL("MachineNew", "so", 0), |
1124 | SD_BUS_SIGNAL("MachineRemoved", "so", 0), | |
1125 | SD_BUS_VTABLE_END | |
1126 | }; | |
1ee306e1 | 1127 | |
19070062 | 1128 | int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 | 1129 | const char *path, *result, *unit; |
1ee306e1 | 1130 | Manager *m = userdata; |
c3350683 LP |
1131 | Machine *machine; |
1132 | uint32_t id; | |
1133 | int r; | |
1ee306e1 | 1134 | |
1ee306e1 | 1135 | assert(message); |
c3350683 | 1136 | assert(m); |
1ee306e1 | 1137 | |
c3350683 LP |
1138 | r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result); |
1139 | if (r < 0) { | |
ebcf1f97 | 1140 | bus_log_parse_error(r); |
65d73cf0 | 1141 | return 0; |
c3350683 | 1142 | } |
6797c324 | 1143 | |
c3350683 LP |
1144 | machine = hashmap_get(m->machine_units, unit); |
1145 | if (!machine) | |
1146 | return 0; | |
6797c324 | 1147 | |
c3350683 | 1148 | if (streq_ptr(path, machine->scope_job)) { |
491ac9f2 | 1149 | machine->scope_job = mfree(machine->scope_job); |
6797c324 | 1150 | |
c3350683 LP |
1151 | if (machine->started) { |
1152 | if (streq(result, "done")) | |
1153 | machine_send_create_reply(machine, NULL); | |
1154 | else { | |
ebcf1f97 | 1155 | _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL; |
6797c324 | 1156 | |
ebcf1f97 | 1157 | sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result); |
6797c324 | 1158 | |
ebcf1f97 | 1159 | machine_send_create_reply(machine, &e); |
c3350683 | 1160 | } |
49f3fffd LP |
1161 | } |
1162 | ||
1163 | machine_save(machine); | |
1ee306e1 LP |
1164 | } |
1165 | ||
c3350683 LP |
1166 | machine_add_to_gc_queue(machine); |
1167 | return 0; | |
1ee306e1 LP |
1168 | } |
1169 | ||
19070062 | 1170 | int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 | 1171 | _cleanup_free_ char *unit = NULL; |
49f3fffd | 1172 | const char *path; |
c3350683 LP |
1173 | Manager *m = userdata; |
1174 | Machine *machine; | |
ebcf1f97 | 1175 | int r; |
554604b3 | 1176 | |
c3350683 LP |
1177 | assert(message); |
1178 | assert(m); | |
554604b3 | 1179 | |
c3350683 LP |
1180 | path = sd_bus_message_get_path(message); |
1181 | if (!path) | |
554604b3 | 1182 | return 0; |
554604b3 | 1183 | |
ebcf1f97 | 1184 | r = unit_name_from_dbus_path(path, &unit); |
e5f5b5b9 LP |
1185 | if (r == -EINVAL) /* not for a unit */ |
1186 | return 0; | |
9b420b3c LP |
1187 | if (r < 0){ |
1188 | log_oom(); | |
1189 | return 0; | |
1190 | } | |
554604b3 | 1191 | |
c3350683 | 1192 | machine = hashmap_get(m->machine_units, unit); |
9b420b3c LP |
1193 | if (!machine) |
1194 | return 0; | |
1195 | ||
9b420b3c | 1196 | machine_add_to_gc_queue(machine); |
c3350683 LP |
1197 | return 0; |
1198 | } | |
554604b3 | 1199 | |
19070062 | 1200 | int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 LP |
1201 | const char *path, *unit; |
1202 | Manager *m = userdata; | |
1203 | Machine *machine; | |
1204 | int r; | |
554604b3 | 1205 | |
c3350683 LP |
1206 | assert(message); |
1207 | assert(m); | |
554604b3 | 1208 | |
c3350683 LP |
1209 | r = sd_bus_message_read(message, "so", &unit, &path); |
1210 | if (r < 0) { | |
ebcf1f97 | 1211 | bus_log_parse_error(r); |
9b420b3c | 1212 | return 0; |
554604b3 LP |
1213 | } |
1214 | ||
c3350683 | 1215 | machine = hashmap_get(m->machine_units, unit); |
9b420b3c LP |
1216 | if (!machine) |
1217 | return 0; | |
1218 | ||
9b420b3c | 1219 | machine_add_to_gc_queue(machine); |
c3350683 LP |
1220 | return 0; |
1221 | } | |
554604b3 | 1222 | |
19070062 | 1223 | int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
c3350683 | 1224 | Manager *m = userdata; |
a658cafa LP |
1225 | Machine *machine; |
1226 | Iterator i; | |
c3350683 | 1227 | int b, r; |
554604b3 | 1228 | |
19070062 LP |
1229 | assert(message); |
1230 | assert(m); | |
554604b3 | 1231 | |
c3350683 LP |
1232 | r = sd_bus_message_read(message, "b", &b); |
1233 | if (r < 0) { | |
ebcf1f97 | 1234 | bus_log_parse_error(r); |
65d73cf0 | 1235 | return 0; |
554604b3 | 1236 | } |
a658cafa LP |
1237 | if (b) |
1238 | return 0; | |
554604b3 | 1239 | |
a658cafa LP |
1240 | /* systemd finished reloading, let's recheck all our machines */ |
1241 | log_debug("System manager has been reloaded, rechecking machines..."); | |
554604b3 | 1242 | |
a658cafa LP |
1243 | HASHMAP_FOREACH(machine, m->machines, i) |
1244 | machine_add_to_gc_queue(machine); | |
554604b3 LP |
1245 | |
1246 | return 0; | |
1247 | } | |
1248 | ||
1ee306e1 LP |
1249 | int manager_start_scope( |
1250 | Manager *manager, | |
1251 | const char *scope, | |
1252 | pid_t pid, | |
1253 | const char *slice, | |
1254 | const char *description, | |
c3350683 LP |
1255 | sd_bus_message *more_properties, |
1256 | sd_bus_error *error, | |
1ee306e1 LP |
1257 | char **job) { |
1258 | ||
c3350683 | 1259 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; |
554604b3 | 1260 | int r; |
1ee306e1 LP |
1261 | |
1262 | assert(manager); | |
1263 | assert(scope); | |
1264 | assert(pid > 1); | |
1265 | ||
c3350683 LP |
1266 | r = sd_bus_message_new_method_call( |
1267 | manager->bus, | |
151b9b96 | 1268 | &m, |
1ee306e1 LP |
1269 | "org.freedesktop.systemd1", |
1270 | "/org/freedesktop/systemd1", | |
1271 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 1272 | "StartTransientUnit"); |
c3350683 LP |
1273 | if (r < 0) |
1274 | return r; | |
1ee306e1 | 1275 | |
a658cafa | 1276 | r = sd_bus_message_append(m, "ss", strempty(scope), "fail"); |
c3350683 LP |
1277 | if (r < 0) |
1278 | return r; | |
1ee306e1 | 1279 | |
c3350683 LP |
1280 | r = sd_bus_message_open_container(m, 'a', "(sv)"); |
1281 | if (r < 0) | |
1282 | return r; | |
1ee306e1 LP |
1283 | |
1284 | if (!isempty(slice)) { | |
c3350683 LP |
1285 | r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice); |
1286 | if (r < 0) | |
1287 | return r; | |
1ee306e1 LP |
1288 | } |
1289 | ||
1290 | if (!isempty(description)) { | |
c3350683 LP |
1291 | r = sd_bus_message_append(m, "(sv)", "Description", "s", description); |
1292 | if (r < 0) | |
1293 | return r; | |
1ee306e1 LP |
1294 | } |
1295 | ||
c3350683 LP |
1296 | r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid); |
1297 | if (r < 0) | |
1298 | return r; | |
554604b3 | 1299 | |
a931ad47 LP |
1300 | r = sd_bus_message_append(m, "(sv)", "Delegate", "b", 1); |
1301 | if (r < 0) | |
1302 | return r; | |
1303 | ||
554604b3 | 1304 | if (more_properties) { |
c3350683 | 1305 | r = sd_bus_message_copy(m, more_properties, true); |
554604b3 LP |
1306 | if (r < 0) |
1307 | return r; | |
1308 | } | |
1309 | ||
c3350683 LP |
1310 | r = sd_bus_message_close_container(m); |
1311 | if (r < 0) | |
1312 | return r; | |
1ee306e1 | 1313 | |
86b8d289 LP |
1314 | r = sd_bus_message_append(m, "a(sa(sv))", 0); |
1315 | if (r < 0) | |
1316 | return r; | |
1317 | ||
c49b30a2 | 1318 | r = sd_bus_call(manager->bus, m, 0, error, &reply); |
c3350683 LP |
1319 | if (r < 0) |
1320 | return r; | |
1ee306e1 LP |
1321 | |
1322 | if (job) { | |
1323 | const char *j; | |
1324 | char *copy; | |
1325 | ||
c3350683 LP |
1326 | r = sd_bus_message_read(reply, "o", &j); |
1327 | if (r < 0) | |
1328 | return r; | |
1ee306e1 LP |
1329 | |
1330 | copy = strdup(j); | |
1331 | if (!copy) | |
1332 | return -ENOMEM; | |
1333 | ||
1334 | *job = copy; | |
1335 | } | |
1336 | ||
c3350683 | 1337 | return 1; |
1ee306e1 LP |
1338 | } |
1339 | ||
c3350683 LP |
1340 | int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { |
1341 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
1ee306e1 LP |
1342 | int r; |
1343 | ||
1344 | assert(manager); | |
1345 | assert(unit); | |
1346 | ||
c3350683 | 1347 | r = sd_bus_call_method( |
1ee306e1 LP |
1348 | manager->bus, |
1349 | "org.freedesktop.systemd1", | |
1350 | "/org/freedesktop/systemd1", | |
1351 | "org.freedesktop.systemd1.Manager", | |
1352 | "StopUnit", | |
1ee306e1 | 1353 | error, |
c3350683 LP |
1354 | &reply, |
1355 | "ss", unit, "fail"); | |
1ee306e1 | 1356 | if (r < 0) { |
c3350683 LP |
1357 | if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || |
1358 | sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) { | |
6797c324 LP |
1359 | |
1360 | if (job) | |
1361 | *job = NULL; | |
1362 | ||
c3350683 | 1363 | sd_bus_error_free(error); |
6797c324 LP |
1364 | return 0; |
1365 | } | |
1366 | ||
1ee306e1 LP |
1367 | return r; |
1368 | } | |
1369 | ||
1370 | if (job) { | |
1371 | const char *j; | |
1372 | char *copy; | |
1373 | ||
c3350683 LP |
1374 | r = sd_bus_message_read(reply, "o", &j); |
1375 | if (r < 0) | |
1376 | return r; | |
1ee306e1 LP |
1377 | |
1378 | copy = strdup(j); | |
1379 | if (!copy) | |
1380 | return -ENOMEM; | |
1381 | ||
1382 | *job = copy; | |
1383 | } | |
1384 | ||
6797c324 | 1385 | return 1; |
1ee306e1 LP |
1386 | } |
1387 | ||
de58a50e | 1388 | int manager_kill_unit(Manager *manager, const char *unit, int signo, sd_bus_error *error) { |
1ee306e1 LP |
1389 | assert(manager); |
1390 | assert(unit); | |
1391 | ||
a658cafa | 1392 | return sd_bus_call_method( |
1ee306e1 LP |
1393 | manager->bus, |
1394 | "org.freedesktop.systemd1", | |
1395 | "/org/freedesktop/systemd1", | |
1396 | "org.freedesktop.systemd1.Manager", | |
1397 | "KillUnit", | |
1ee306e1 | 1398 | error, |
a658cafa | 1399 | NULL, |
de58a50e | 1400 | "ssi", unit, "all", signo); |
1ee306e1 LP |
1401 | } |
1402 | ||
1403 | int manager_unit_is_active(Manager *manager, const char *unit) { | |
c3350683 LP |
1404 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
1405 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
1ee306e1 | 1406 | _cleanup_free_ char *path = NULL; |
1ee306e1 | 1407 | const char *state; |
1ee306e1 LP |
1408 | int r; |
1409 | ||
1410 | assert(manager); | |
1411 | assert(unit); | |
1412 | ||
1ee306e1 LP |
1413 | path = unit_dbus_path_from_name(unit); |
1414 | if (!path) | |
1415 | return -ENOMEM; | |
1416 | ||
c3350683 | 1417 | r = sd_bus_get_property( |
1ee306e1 LP |
1418 | manager->bus, |
1419 | "org.freedesktop.systemd1", | |
1420 | path, | |
c3350683 LP |
1421 | "org.freedesktop.systemd1.Unit", |
1422 | "ActiveState", | |
1ee306e1 | 1423 | &error, |
c3350683 LP |
1424 | &reply, |
1425 | "s"); | |
1ee306e1 | 1426 | if (r < 0) { |
c3350683 LP |
1427 | if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || |
1428 | sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) | |
6797c324 | 1429 | return true; |
6797c324 | 1430 | |
c3350683 LP |
1431 | if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) || |
1432 | sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED)) | |
6797c324 | 1433 | return false; |
6797c324 | 1434 | |
1ee306e1 LP |
1435 | return r; |
1436 | } | |
1437 | ||
c3350683 LP |
1438 | r = sd_bus_message_read(reply, "s", &state); |
1439 | if (r < 0) | |
1ee306e1 | 1440 | return -EINVAL; |
1ee306e1 | 1441 | |
9b420b3c | 1442 | return !STR_IN_SET(state, "inactive", "failed"); |
1ee306e1 | 1443 | } |
bd16acf3 | 1444 | |
c3350683 LP |
1445 | int manager_job_is_active(Manager *manager, const char *path) { |
1446 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
1447 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
1448 | int r; | |
bd16acf3 | 1449 | |
c3350683 LP |
1450 | assert(manager); |
1451 | assert(path); | |
bd16acf3 | 1452 | |
c3350683 LP |
1453 | r = sd_bus_get_property( |
1454 | manager->bus, | |
1455 | "org.freedesktop.systemd1", | |
1456 | path, | |
1457 | "org.freedesktop.systemd1.Job", | |
1458 | "State", | |
1459 | &error, | |
1460 | &reply, | |
1461 | "s"); | |
1462 | if (r < 0) { | |
1463 | if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || | |
1464 | sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) | |
1465 | return true; | |
bd16acf3 | 1466 | |
c3350683 LP |
1467 | if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT)) |
1468 | return false; | |
bd16acf3 | 1469 | |
bd16acf3 | 1470 | return r; |
c3350683 | 1471 | } |
bd16acf3 | 1472 | |
c3350683 LP |
1473 | /* We don't actually care about the state really. The fact |
1474 | * that we could read the job state is enough for us */ | |
bd16acf3 | 1475 | |
c3350683 | 1476 | return true; |
bd16acf3 | 1477 | } |
ab49725f KS |
1478 | |
1479 | int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) { | |
1480 | _cleanup_free_ char *unit = NULL; | |
1481 | Machine *mm; | |
1482 | int r; | |
1483 | ||
1484 | assert(m); | |
1485 | assert(pid >= 1); | |
1486 | assert(machine); | |
1487 | ||
1488 | r = cg_pid_get_unit(pid, &unit); | |
1489 | if (r < 0) | |
1490 | mm = hashmap_get(m->machine_leaders, UINT_TO_PTR(pid)); | |
1491 | else | |
1492 | mm = hashmap_get(m->machine_units, unit); | |
1493 | ||
1494 | if (!mm) | |
1495 | return 0; | |
1496 | ||
1497 | *machine = mm; | |
1498 | return 1; | |
1499 | } | |
1500 | ||
1501 | int manager_add_machine(Manager *m, const char *name, Machine **_machine) { | |
1502 | Machine *machine; | |
1503 | ||
1504 | assert(m); | |
1505 | assert(name); | |
1506 | ||
1507 | machine = hashmap_get(m->machines, name); | |
1508 | if (!machine) { | |
1509 | machine = machine_new(m, name); | |
1510 | if (!machine) | |
1511 | return -ENOMEM; | |
1512 | } | |
1513 | ||
1514 | if (_machine) | |
1515 | *_machine = machine; | |
1516 | ||
1517 | return 0; | |
1518 | } |