]>
Commit | Line | Data |
---|---|---|
f579559b TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
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 | ||
091a364c | 22 | #include <sys/socket.h> |
bbf7c048 | 23 | #include <linux/if.h> |
3bef724f | 24 | |
2dcf7ec6 | 25 | #include "conf-parser.h" |
f579559b TG |
26 | #include "path-util.h" |
27 | #include "networkd.h" | |
3be1d7e0 | 28 | #include "networkd-netdev.h" |
0b1831c2 | 29 | #include "networkd-link.h" |
e16cb2e4 | 30 | #include "network-internal.h" |
f579559b | 31 | #include "libudev-private.h" |
7b77ed8c | 32 | #include "udev-util.h" |
50add290 | 33 | #include "rtnl-util.h" |
3bef724f | 34 | #include "mkdir.h" |
60ad0c85 | 35 | #include "virt.h" |
f579559b | 36 | |
505f8da7 TG |
37 | #include "sd-rtnl.h" |
38 | ||
2ad8416d ZJS |
39 | const char* const network_dirs[] = { |
40 | "/etc/systemd/network", | |
41 | "/run/systemd/network", | |
42 | "/usr/lib/systemd/network", | |
eed0eee8 | 43 | #ifdef HAVE_SPLIT_USR |
2ad8416d ZJS |
44 | "/lib/systemd/network", |
45 | #endif | |
46 | NULL}; | |
47 | ||
11bf3cce LP |
48 | static int setup_default_address_pool(Manager *m) { |
49 | AddressPool *p; | |
50 | int r; | |
51 | ||
52 | assert(m); | |
53 | ||
54 | /* Add in the well-known private address ranges. */ | |
55 | ||
56 | r = address_pool_new_from_string(m, &p, AF_INET6, "fc00::", 7); | |
57 | if (r < 0) | |
58 | return r; | |
59 | ||
60 | r = address_pool_new_from_string(m, &p, AF_INET, "192.168.0.0", 16); | |
61 | if (r < 0) | |
62 | return r; | |
63 | ||
64 | r = address_pool_new_from_string(m, &p, AF_INET, "172.16.0.0", 12); | |
65 | if (r < 0) | |
66 | return r; | |
67 | ||
68 | r = address_pool_new_from_string(m, &p, AF_INET, "10.0.0.0", 8); | |
69 | if (r < 0) | |
70 | return r; | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
f579559b TG |
75 | int manager_new(Manager **ret) { |
76 | _cleanup_manager_free_ Manager *m = NULL; | |
77 | int r; | |
78 | ||
79 | m = new0(Manager, 1); | |
80 | if (!m) | |
81 | return -ENOMEM; | |
82 | ||
85b5673b | 83 | m->state_file = strdup("/run/systemd/netif/state"); |
bbf7c048 TG |
84 | if (!m->state_file) |
85 | return -ENOMEM; | |
86 | ||
afc6adb5 | 87 | r = sd_event_default(&m->event); |
f579559b TG |
88 | if (r < 0) |
89 | return r; | |
90 | ||
cde93897 LP |
91 | sd_event_set_watchdog(m->event, true); |
92 | ||
186fe1db LP |
93 | sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL); |
94 | sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL); | |
95 | ||
897e184c TG |
96 | r = sd_rtnl_open(&m->rtnl, 3, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR, |
97 | RTNLGRP_IPV6_IFADDR); | |
f579559b TG |
98 | if (r < 0) |
99 | return r; | |
100 | ||
1346b1f0 | 101 | r = sd_bus_default_system(&m->bus); |
bcbca829 | 102 | if (r < 0 && r != -ENOENT) /* TODO: drop when we can rely on kdbus */ |
1346b1f0 TG |
103 | return r; |
104 | ||
60ad0c85 TG |
105 | /* udev does not initialize devices inside containers, |
106 | * so we rely on them being already initialized before | |
107 | * entering the container */ | |
505f8da7 TG |
108 | if (detect_container(NULL) <= 0) { |
109 | m->udev = udev_new(); | |
110 | if (!m->udev) | |
60ad0c85 | 111 | return -ENOMEM; |
505f8da7 | 112 | |
60ad0c85 TG |
113 | m->udev_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
114 | if (!m->udev_monitor) | |
115 | return -ENOMEM; | |
116 | } | |
f579559b | 117 | |
52433f6b TG |
118 | m->netdevs = hashmap_new(string_hash_func, string_compare_func); |
119 | if (!m->netdevs) | |
02b59d57 TG |
120 | return -ENOMEM; |
121 | ||
f579559b TG |
122 | LIST_HEAD_INIT(m->networks); |
123 | ||
11bf3cce LP |
124 | r = setup_default_address_pool(m); |
125 | if (r < 0) | |
126 | return r; | |
127 | ||
f579559b TG |
128 | *ret = m; |
129 | m = NULL; | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
134 | void manager_free(Manager *m) { | |
0617ffab | 135 | Network *network; |
1a436809 | 136 | NetDev *netdev; |
0617ffab | 137 | Link *link; |
11bf3cce | 138 | AddressPool *pool; |
0617ffab | 139 | |
624b5a63 TG |
140 | if (!m) |
141 | return; | |
142 | ||
bbf7c048 TG |
143 | free(m->state_file); |
144 | ||
f579559b TG |
145 | udev_monitor_unref(m->udev_monitor); |
146 | udev_unref(m->udev); | |
1346b1f0 | 147 | sd_bus_unref(m->bus); |
f579559b | 148 | sd_event_source_unref(m->udev_event_source); |
0c2f9b84 TG |
149 | sd_event_source_unref(m->sigterm_event_source); |
150 | sd_event_source_unref(m->sigint_event_source); | |
f579559b | 151 | sd_event_unref(m->event); |
0617ffab | 152 | |
0617ffab | 153 | while ((link = hashmap_first(m->links))) |
14b746f7 | 154 | link_unref(link); |
f579559b | 155 | hashmap_free(m->links); |
0617ffab | 156 | |
2292547a TG |
157 | while ((network = m->networks)) |
158 | network_free(network); | |
159 | ||
52433f6b | 160 | while ((netdev = hashmap_first(m->netdevs))) |
14b746f7 | 161 | netdev_unref(netdev); |
52433f6b | 162 | hashmap_free(m->netdevs); |
02b59d57 | 163 | |
11bf3cce LP |
164 | while ((pool = m->address_pools)) |
165 | address_pool_free(pool); | |
166 | ||
f579559b TG |
167 | sd_rtnl_unref(m->rtnl); |
168 | ||
169 | free(m); | |
170 | } | |
171 | ||
02b59d57 TG |
172 | int manager_load_config(Manager *m) { |
173 | int r; | |
174 | ||
175 | /* update timestamp */ | |
2ad8416d | 176 | paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, true); |
02b59d57 | 177 | |
52433f6b | 178 | r = netdev_load(m); |
02b59d57 TG |
179 | if (r < 0) |
180 | return r; | |
181 | ||
182 | r = network_load(m); | |
183 | if (r < 0) | |
184 | return r; | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
189 | bool manager_should_reload(Manager *m) { | |
2ad8416d | 190 | return paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, false); |
02b59d57 TG |
191 | } |
192 | ||
505f8da7 | 193 | static int manager_udev_process_link(Manager *m, struct udev_device *device) { |
11a7f229 | 194 | Link *link = NULL; |
667fcc6d | 195 | int r, ifindex; |
f579559b | 196 | |
11a7f229 TG |
197 | assert(m); |
198 | assert(device); | |
f579559b | 199 | |
505f8da7 TG |
200 | if (!streq_ptr(udev_device_get_action(device), "add")) |
201 | return 0; | |
202 | ||
667fcc6d TG |
203 | ifindex = udev_device_get_ifindex(device); |
204 | if (ifindex <= 0) { | |
205 | log_debug("ignoring udev ADD event for device with invalid ifindex"); | |
206 | return 0; | |
207 | } | |
505f8da7 | 208 | |
667fcc6d TG |
209 | r = link_get(m, ifindex, &link); |
210 | if (r == -ENODEV) | |
505f8da7 | 211 | return 0; |
667fcc6d TG |
212 | else if (r < 0) |
213 | return r; | |
505f8da7 TG |
214 | |
215 | r = link_initialized(link, device); | |
216 | if (r < 0) | |
217 | return r; | |
11a7f229 | 218 | |
505f8da7 TG |
219 | return 0; |
220 | } | |
f579559b | 221 | |
505f8da7 TG |
222 | static int manager_rtnl_process_link(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) { |
223 | Manager *m = userdata; | |
224 | Link *link = NULL; | |
4d473d5d | 225 | NetDev *netdev = NULL; |
f2236469 | 226 | uint16_t type; |
ca4e095a | 227 | const char *name; |
505f8da7 | 228 | int r, ifindex; |
f579559b | 229 | |
505f8da7 TG |
230 | assert(rtnl); |
231 | assert(message); | |
f579559b TG |
232 | assert(m); |
233 | ||
f2236469 TG |
234 | r = sd_rtnl_message_get_type(message, &type); |
235 | if (r < 0) { | |
236 | log_warning("rtnl: could not get message type"); | |
237 | return 0; | |
238 | } | |
239 | ||
505f8da7 TG |
240 | r = sd_rtnl_message_link_get_ifindex(message, &ifindex); |
241 | if (r < 0 || ifindex <= 0) { | |
242 | log_warning("rtnl: received link message without valid ifindex"); | |
243 | return 0; | |
4d473d5d TG |
244 | } else |
245 | link_get(m, ifindex, &link); | |
f579559b | 246 | |
505f8da7 | 247 | r = sd_rtnl_message_read_string(message, IFLA_IFNAME, &name); |
4d473d5d | 248 | if (r < 0 || !name) { |
505f8da7 | 249 | log_warning("rtnl: received link message without valid ifname"); |
4d473d5d TG |
250 | return 0; |
251 | } else | |
f2236469 | 252 | netdev_get(m, name, &netdev); |
4d473d5d TG |
253 | |
254 | switch (type) { | |
255 | case RTM_NEWLINK: | |
256 | if (!link) { | |
257 | /* link is new, so add it */ | |
258 | r = link_add(m, message, &link); | |
259 | if (r < 0) { | |
1a941ac4 TG |
260 | log_debug("could not add new link: %s", |
261 | strerror(-r)); | |
4d473d5d TG |
262 | return 0; |
263 | } | |
264 | } | |
265 | ||
266 | if (netdev) { | |
267 | /* netdev exists, so make sure the ifindex matches */ | |
505f8da7 TG |
268 | r = netdev_set_ifindex(netdev, message); |
269 | if (r < 0) { | |
270 | log_debug("could not set ifindex on netdev"); | |
271 | return 0; | |
272 | } | |
273 | } | |
e1202047 | 274 | |
f2236469 TG |
275 | r = link_update(link, message); |
276 | if (r < 0) | |
277 | return 0; | |
4d473d5d TG |
278 | |
279 | break; | |
280 | ||
281 | case RTM_DELLINK: | |
282 | link_drop(link); | |
283 | netdev_drop(netdev); | |
284 | ||
285 | break; | |
286 | ||
287 | default: | |
288 | assert_not_reached("Received invalid RTNL message type."); | |
f2236469 | 289 | } |
505f8da7 TG |
290 | |
291 | return 1; | |
292 | } | |
293 | ||
294 | int manager_rtnl_enumerate_links(Manager *m) { | |
295 | _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL; | |
296 | sd_rtnl_message *link; | |
297 | int r, k; | |
298 | ||
299 | assert(m); | |
300 | assert(m->rtnl); | |
301 | ||
302 | r = sd_rtnl_message_new_link(m->rtnl, &req, RTM_GETLINK, 0); | |
303 | if (r < 0) | |
304 | return r; | |
305 | ||
306 | r = sd_rtnl_message_request_dump(req, true); | |
f579559b | 307 | if (r < 0) |
bf5332d2 | 308 | return r; |
f579559b | 309 | |
505f8da7 TG |
310 | r = sd_rtnl_call(m->rtnl, req, 0, &reply); |
311 | if (r < 0) | |
312 | return r; | |
f579559b | 313 | |
505f8da7 TG |
314 | for (link = reply; link; link = sd_rtnl_message_next(link)) { |
315 | uint16_t type; | |
316 | ||
317 | k = sd_rtnl_message_get_type(link, &type); | |
318 | if (k < 0) | |
319 | return k; | |
320 | ||
321 | if (type != RTM_NEWLINK) | |
322 | continue; | |
f579559b | 323 | |
505f8da7 | 324 | k = manager_rtnl_process_link(m->rtnl, link, m); |
f579559b TG |
325 | if (k < 0) |
326 | r = k; | |
327 | } | |
328 | ||
f579559b TG |
329 | return r; |
330 | } | |
331 | ||
332 | static int manager_dispatch_link_udev(sd_event_source *source, int fd, uint32_t revents, void *userdata) { | |
333 | Manager *m = userdata; | |
334 | struct udev_monitor *monitor = m->udev_monitor; | |
7b77ed8c | 335 | _cleanup_udev_device_unref_ struct udev_device *device = NULL; |
f579559b TG |
336 | |
337 | device = udev_monitor_receive_device(monitor); | |
338 | if (!device) | |
339 | return -ENOMEM; | |
340 | ||
505f8da7 | 341 | manager_udev_process_link(m, device); |
f579559b TG |
342 | return 0; |
343 | } | |
344 | ||
345 | int manager_udev_listen(Manager *m) { | |
346 | int r; | |
347 | ||
505f8da7 TG |
348 | if (detect_container(NULL) > 0) |
349 | return 0; | |
350 | ||
351 | assert(m->udev_monitor); | |
352 | ||
f579559b TG |
353 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_monitor, "net", NULL); |
354 | if (r < 0) { | |
355 | log_error("Could not add udev monitor filter: %s", strerror(-r)); | |
356 | return r; | |
357 | } | |
358 | ||
f579559b TG |
359 | r = udev_monitor_enable_receiving(m->udev_monitor); |
360 | if (r < 0) { | |
361 | log_error("Could not enable udev monitor"); | |
362 | return r; | |
363 | } | |
364 | ||
365 | r = sd_event_add_io(m->event, | |
151b9b96 | 366 | &m->udev_event_source, |
f579559b TG |
367 | udev_monitor_get_fd(m->udev_monitor), |
368 | EPOLLIN, manager_dispatch_link_udev, | |
151b9b96 | 369 | m); |
f579559b TG |
370 | if (r < 0) |
371 | return r; | |
372 | ||
373 | return 0; | |
374 | } | |
f882c247 TG |
375 | |
376 | int manager_rtnl_listen(Manager *m) { | |
377 | int r; | |
378 | ||
5da8149f TG |
379 | assert(m); |
380 | ||
f882c247 TG |
381 | r = sd_rtnl_attach_event(m->rtnl, m->event, 0); |
382 | if (r < 0) | |
383 | return r; | |
384 | ||
dd3efc09 TG |
385 | r = sd_rtnl_add_match(m->rtnl, RTM_NEWLINK, &manager_rtnl_process_link, m); |
386 | if (r < 0) | |
387 | return r; | |
388 | ||
f2236469 TG |
389 | r = sd_rtnl_add_match(m->rtnl, RTM_DELLINK, &manager_rtnl_process_link, m); |
390 | if (r < 0) | |
391 | return r; | |
392 | ||
fbbeb65a | 393 | r = sd_rtnl_add_match(m->rtnl, RTM_NEWADDR, &link_rtnl_process_address, m); |
2e9f08ea TG |
394 | if (r < 0) |
395 | return r; | |
396 | ||
fbbeb65a | 397 | r = sd_rtnl_add_match(m->rtnl, RTM_DELADDR, &link_rtnl_process_address, m); |
2e9f08ea TG |
398 | if (r < 0) |
399 | return r; | |
400 | ||
f882c247 TG |
401 | return 0; |
402 | } | |
3bef724f | 403 | |
1346b1f0 TG |
404 | int manager_bus_listen(Manager *m) { |
405 | int r; | |
406 | ||
bcbca829 TG |
407 | assert(m->event); |
408 | ||
409 | if (!m->bus) /* TODO: drop when we can rely on kdbus */ | |
410 | return 0; | |
411 | ||
1346b1f0 TG |
412 | r = sd_bus_attach_event(m->bus, m->event, 0); |
413 | if (r < 0) | |
414 | return r; | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
c0c743cb LP |
419 | static int set_put_in_addr(Set *s, const struct in_addr *address) { |
420 | char *p; | |
421 | int r; | |
422 | ||
423 | assert(s); | |
424 | ||
425 | r = in_addr_to_string(AF_INET, (const union in_addr_union*) address, &p); | |
426 | if (r < 0) | |
427 | return r; | |
428 | ||
429 | r = set_consume(s, p); | |
430 | if (r == -EEXIST) | |
431 | return 0; | |
432 | ||
433 | return r; | |
434 | } | |
435 | ||
436 | static int set_put_in_addrv(Set *s, const struct in_addr *addresses, int n) { | |
437 | int r, i, c = 0; | |
438 | ||
439 | assert(s); | |
440 | assert(n <= 0 || addresses); | |
441 | ||
442 | for (i = 0; i < n; i++) { | |
443 | r = set_put_in_addr(s, addresses+i); | |
444 | if (r < 0) | |
445 | return r; | |
446 | ||
447 | c += r; | |
448 | } | |
449 | ||
450 | return c; | |
451 | } | |
452 | ||
8612e936 LP |
453 | static void print_string_set(FILE *f, const char *field, Set *s) { |
454 | bool space = false; | |
455 | Iterator i; | |
456 | char *p; | |
457 | ||
458 | if (set_isempty(s)) | |
459 | return; | |
460 | ||
461 | fputs(field, f); | |
462 | ||
463 | SET_FOREACH(p, s, i) { | |
464 | if (space) | |
465 | fputc(' ', f); | |
466 | fputs(p, f); | |
467 | space = true; | |
468 | } | |
469 | fputc('\n', f); | |
470 | } | |
471 | ||
bbf7c048 | 472 | int manager_save(Manager *m) { |
8612e936 | 473 | _cleanup_set_free_free_ Set *dns = NULL, *ntp = NULL, *domains = NULL; |
bbf7c048 TG |
474 | Link *link; |
475 | Iterator i; | |
476 | _cleanup_free_ char *temp_path = NULL; | |
477 | _cleanup_fclose_ FILE *f = NULL; | |
d3df0e39 | 478 | LinkOperationalState operstate = LINK_OPERSTATE_OFF; |
e375dcde | 479 | const char *operstate_str; |
bbf7c048 TG |
480 | int r; |
481 | ||
482 | assert(m); | |
483 | assert(m->state_file); | |
484 | ||
c0c743cb LP |
485 | /* We add all NTP and DNS server to a set, to filter out duplicates */ |
486 | dns = set_new(string_hash_func, string_compare_func); | |
487 | if (!dns) | |
488 | return -ENOMEM; | |
489 | ||
490 | ntp = set_new(string_hash_func, string_compare_func); | |
491 | if (!ntp) | |
492 | return -ENOMEM; | |
493 | ||
8612e936 LP |
494 | domains = set_new(string_hash_func, string_compare_func); |
495 | if (!domains) | |
496 | return -ENOMEM; | |
497 | ||
bbf7c048 TG |
498 | HASHMAP_FOREACH(link, m->links, i) { |
499 | if (link->flags & IFF_LOOPBACK) | |
500 | continue; | |
501 | ||
e375dcde TG |
502 | if (link->operstate > operstate) |
503 | operstate = link->operstate; | |
c0c743cb LP |
504 | |
505 | if (!link->network) | |
506 | continue; | |
507 | ||
508 | /* First add the static configured entries */ | |
509 | r = set_put_strdupv(dns, link->network->dns); | |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
513 | r = set_put_strdupv(ntp, link->network->ntp); | |
514 | if (r < 0) | |
515 | return r; | |
516 | ||
8612e936 LP |
517 | r = set_put_strdupv(domains, link->network->domains); |
518 | if (r < 0) | |
519 | return r; | |
520 | ||
c0c743cb LP |
521 | if (!link->dhcp_lease) |
522 | continue; | |
523 | ||
524 | /* Secondly, add the entries acquired via DHCP */ | |
525 | if (link->network->dhcp_dns) { | |
526 | const struct in_addr *addresses; | |
527 | ||
528 | r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses); | |
529 | if (r > 0) { | |
530 | r = set_put_in_addrv(dns, addresses, r); | |
531 | if (r < 0) | |
532 | return r; | |
8612e936 | 533 | } else if (r < 0 && r != -ENOENT) |
c0c743cb LP |
534 | return r; |
535 | } | |
536 | ||
537 | if (link->network->dhcp_ntp) { | |
538 | const struct in_addr *addresses; | |
539 | ||
540 | r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses); | |
541 | if (r > 0) { | |
542 | r = set_put_in_addrv(ntp, addresses, r); | |
543 | if (r < 0) | |
544 | return r; | |
8612e936 LP |
545 | } else if (r < 0 && r != -ENOENT) |
546 | return r; | |
547 | } | |
548 | ||
549 | if (link->network->dhcp_domains) { | |
550 | const char *domainname; | |
551 | ||
552 | r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname); | |
553 | if (r >= 0) { | |
554 | r = set_put_strdup(domains, domainname); | |
555 | if (r < 0) | |
556 | return r; | |
c0c743cb LP |
557 | } else if (r != -ENOENT) |
558 | return r; | |
559 | } | |
bbf7c048 TG |
560 | } |
561 | ||
e375dcde TG |
562 | operstate_str = link_operstate_to_string(operstate); |
563 | assert(operstate_str); | |
bbf7c048 TG |
564 | |
565 | r = fopen_temporary(m->state_file, &f, &temp_path); | |
566 | if (r < 0) | |
c2d6bd61 | 567 | return r; |
bbf7c048 TG |
568 | |
569 | fchmod(fileno(f), 0644); | |
570 | ||
571 | fprintf(f, | |
572 | "# This is private data. Do not parse.\n" | |
e375dcde | 573 | "OPER_STATE=%s\n", operstate_str); |
bbf7c048 | 574 | |
8612e936 LP |
575 | print_string_set(f, "DNS=", dns); |
576 | print_string_set(f, "NTP=", ntp); | |
577 | print_string_set(f, "DOMAINS=", domains); | |
c0c743cb | 578 | |
c2d6bd61 LP |
579 | r = fflush_and_check(f); |
580 | if (r < 0) | |
581 | goto fail; | |
bbf7c048 | 582 | |
c2d6bd61 | 583 | if (rename(temp_path, m->state_file) < 0) { |
bbf7c048 | 584 | r = -errno; |
c2d6bd61 | 585 | goto fail; |
bbf7c048 TG |
586 | } |
587 | ||
c2d6bd61 | 588 | return 0; |
bbf7c048 | 589 | |
c2d6bd61 LP |
590 | fail: |
591 | log_error("Failed to save network state to %s: %s", m->state_file, strerror(-r)); | |
592 | unlink(m->state_file); | |
593 | unlink(temp_path); | |
bbf7c048 TG |
594 | return r; |
595 | } | |
11bf3cce | 596 | |
0dd25fb9 | 597 | int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found) { |
11bf3cce LP |
598 | AddressPool *p; |
599 | int r; | |
600 | ||
601 | assert(m); | |
602 | assert(prefixlen > 0); | |
603 | assert(found); | |
604 | ||
605 | LIST_FOREACH(address_pools, p, m->address_pools) { | |
606 | if (p->family != family) | |
607 | continue; | |
608 | ||
609 | r = address_pool_acquire(p, prefixlen, found); | |
610 | if (r != 0) | |
611 | return r; | |
612 | } | |
613 | ||
614 | return 0; | |
615 | } |