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networkd: add support to configure ip rule port range and protocol.
[thirdparty/systemd.git] / src / network / networkd-manager.c
CommitLineData
53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
f579559b 2
091a364c 3#include <sys/socket.h>
bbf7c048 4#include <linux/if.h>
bce67bbe 5#include <linux/fib_rules.h>
0d536673 6#include <stdio_ext.h>
3bef724f 7
fc2f9534 8#include "sd-daemon.h"
07630cea 9#include "sd-netlink.h"
fc2f9534 10
b5efdb8a 11#include "alloc-util.h"
a97dcc12 12#include "bus-util.h"
07630cea 13#include "conf-parser.h"
a97dcc12 14#include "def.h"
21486d9e 15#include "device-util.h"
482d1aeb 16#include "dns-domain.h"
3ffd4af2 17#include "fd-util.h"
0d39fa9c 18#include "fileio.h"
4f5f911e 19#include "local-addresses.h"
07630cea 20#include "netlink-util.h"
23f53b99 21#include "networkd-manager.h"
00616955 22#include "ordered-set.h"
07630cea
LP		 23#include "path-util.h"
24#include "set.h"
21486d9e 25#include "strv.h"
07630cea 26#include "virt.h"
505f8da7 27
be660c37
AR		 28/* use 8 MB for receive socket kernel queue. */
29#define RCVBUF_SIZE (8*1024*1024)
30
2ad8416d
ZJS		 31const char* const network_dirs[] = {
32 "/etc/systemd/network",
33 "/run/systemd/network",
34 "/usr/lib/systemd/network",
349cc4a5 35#if HAVE_SPLIT_USR
2ad8416d
ZJS		 36 "/lib/systemd/network",
37#endif
38 NULL};
39
11bf3cce
LP		 40static int setup_default_address_pool(Manager *m) {
41 AddressPool *p;
42 int r;
43
44 assert(m);
45
46 /* Add in the well-known private address ranges. */
47
48 r = address_pool_new_from_string(m, &p, AF_INET6, "fc00::", 7);
49 if (r < 0)
50 return r;
51
52 r = address_pool_new_from_string(m, &p, AF_INET, "192.168.0.0", 16);
53 if (r < 0)
54 return r;
55
56 r = address_pool_new_from_string(m, &p, AF_INET, "172.16.0.0", 12);
57 if (r < 0)
58 return r;
59
60 r = address_pool_new_from_string(m, &p, AF_INET, "10.0.0.0", 8);
61 if (r < 0)
62 return r;
63
64 return 0;
65}
66
9c0a72f9
TG		 67static int manager_reset_all(Manager *m) {
68 Link *link;
69 Iterator i;
70 int r;
71
72 assert(m);
73
74 HASHMAP_FOREACH(link, m->links, i) {
75 r = link_carrier_reset(link);
76 if (r < 0)
2f3cf1f9 77 log_link_warning_errno(link, r, "Could not reset carrier: %m");
9c0a72f9
TG		 78 }
79
80 return 0;
81}
82
19070062 83static int match_prepare_for_sleep(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) {
9c0a72f9
TG		 84 Manager *m = userdata;
85 int b, r;
86
19070062 87 assert(message);
d7afd945 88 assert(m);
9c0a72f9
TG		 89
90 r = sd_bus_message_read(message, "b", &b);
91 if (r < 0) {
92 log_debug_errno(r, "Failed to parse PrepareForSleep signal: %m");
93 return 0;
94 }
95
96 if (b)
97 return 0;
98
99 log_debug("Coming back from suspend, resetting all connections...");
100
e1694a75 101 (void) manager_reset_all(m);
9c0a72f9
TG		 102
103 return 0;
104}
105
d7afd945
LP		 106static int on_connected(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) {
107 Manager *m = userdata;
9c0a72f9 108
d7afd945 109 assert(message);
9c0a72f9
TG		 110 assert(m);
111
d7afd945
LP		 112 /* Did we get a timezone or transient hostname from DHCP while D-Bus wasn't up yet? */
113 if (m->dynamic_hostname)
114 (void) manager_set_hostname(m, m->dynamic_hostname);
115 if (m->dynamic_timezone)
116 (void) manager_set_timezone(m, m->dynamic_timezone);
27dfc982
YW		 117 if (m->links_requesting_uuid)
118 (void) manager_request_product_uuid(m, NULL);
9c0a72f9 119
d7afd945
LP		 120 return 0;
121}
9c0a72f9 122
d7afd945
LP		 123int manager_connect_bus(Manager *m) {
124 int r;
125
126 assert(m);
9c0a72f9 127
d7afd945 128 if (m->bus)
9c0a72f9 129 return 0;
7d6884b6 130
621e4509 131 r = bus_open_system_watch_bind_with_description(&m->bus, "bus-api-network");
9c0a72f9 132 if (r < 0)
d7afd945 133 return log_error_errno(r, "Failed to connect to bus: %m");
9c0a72f9 134
e331e246
TG		 135 r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/network1", "org.freedesktop.network1.Manager", manager_vtable, m);
136 if (r < 0)
137 return log_error_errno(r, "Failed to add manager object vtable: %m");
138
139 r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/link", "org.freedesktop.network1.Link", link_vtable, link_object_find, m);
140 if (r < 0)
141 return log_error_errno(r, "Failed to add link object vtable: %m");
142
143 r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/network1/link", link_node_enumerator, m);
144 if (r < 0)
145 return log_error_errno(r, "Failed to add link enumerator: %m");
3175fcde
TG		 146
147 r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/network", "org.freedesktop.network1.Network", network_vtable, network_object_find, m);
148 if (r < 0)
149 return log_error_errno(r, "Failed to add network object vtable: %m");
150
151 r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/network1/network", network_node_enumerator, m);
152 if (r < 0)
153 return log_error_errno(r, "Failed to add network enumerator: %m");
e331e246 154
696fc836 155 r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.network1", 0, NULL, NULL);
e331e246 156 if (r < 0)
0c0b9306 157 return log_error_errno(r, "Failed to request name: %m");
e331e246
TG		 158
159 r = sd_bus_attach_event(m->bus, m->event, 0);
160 if (r < 0)
161 return log_error_errno(r, "Failed to attach bus to event loop: %m");
162
d7afd945
LP		 163 r = sd_bus_match_signal_async(
164 m->bus,
cad43595 165 NULL,
d7afd945
LP		 166 "org.freedesktop.DBus.Local",
167 NULL,
168 "org.freedesktop.DBus.Local",
169 "Connected",
170 on_connected, NULL, m);
171 if (r < 0)
172 return log_error_errno(r, "Failed to request match on Connected signal: %m");
173
174 r = sd_bus_match_signal_async(
175 m->bus,
cad43595 176 NULL,
d7afd945
LP		 177 "org.freedesktop.login1",
178 "/org/freedesktop/login1",
179 "org.freedesktop.login1.Manager",
180 "PrepareForSleep",
181 match_prepare_for_sleep, NULL, m);
182 if (r < 0)
183 log_warning_errno(r, "Failed to request match for PrepareForSleep, ignoring: %m");
7901cea1 184
9c0a72f9
TG		 185 return 0;
186}
187
d2ebf952
YW		 188static int manager_udev_process_link(sd_device_monitor *monitor, sd_device *device, void *userdata) {
189 Manager *m = userdata;
51517f9e 190 const char *action;
5fae368b
TG		 191 Link *link = NULL;
192 int r, ifindex;
5544ee85 193
5fae368b
TG		 194 assert(m);
195 assert(device);
5544ee85 196
51517f9e 197 r = sd_device_get_property_value(device, "ACTION", &action);
21486d9e
YW		 198 if (r < 0) {
199 log_device_debug_errno(device, r, "Failed to get 'ACTION' property, ignoring device: %m");
5fae368b 200 return 0;
21486d9e
YW		 201 }
202
203 if (!STR_IN_SET(action, "add", "change")) {
7946d57f 204 log_device_debug(device, "Ignoring udev %s event for device.", action);
21486d9e
YW		 205 return 0;
206 }
5544ee85 207
51517f9e 208 r = sd_device_get_ifindex(device, &ifindex);
7606377e 209 if (r < 0) {
21486d9e 210 log_device_debug_errno(device, r, "Ignoring udev ADD event for device without ifindex or with invalid ifindex: %m");
5fae368b 211 return 0;
5544ee85
TG		 212 }
213
5fae368b 214 r = link_get(m, ifindex, &link);
d2ebf952
YW		 215 if (r < 0) {
216 if (r != -ENODEV)
217 log_debug_errno(r, "Failed to get link from ifindex %i, ignoring: %m", ifindex);
5fae368b 218 return 0;
d2ebf952 219 }
02b59d57 220
d2ebf952 221 (void) link_initialized(link, device);
e1694a75 222
f579559b
TG		 223 return 0;
224}
225
5fae368b
TG		 226static int manager_connect_udev(Manager *m) {
227 int r;
f579559b 228
5fae368b
TG		 229 /* udev does not initialize devices inside containers,
230 * so we rely on them being already initialized before
231 * entering the container */
75f86906 232 if (detect_container() > 0)
5fae368b 233 return 0;
f579559b 234
d2ebf952 235 r = sd_device_monitor_new(&m->device_monitor);
02b59d57 236 if (r < 0)
d2ebf952 237 return log_error_errno(r, "Failed to initialize device monitor: %m");
02b59d57 238
d2ebf952
YW		 239 r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "net", NULL);
240 if (r < 0)
241 return log_error_errno(r, "Could not add device monitor filter: %m");
505f8da7 242
deb2b734 243 r = sd_device_monitor_attach_event(m->device_monitor, m->event);
5fae368b 244 if (r < 0)
d2ebf952 245 return log_error_errno(r, "Failed to attach event to device monitor: %m");
505f8da7 246
deb2b734 247 r = sd_device_monitor_start(m->device_monitor, manager_udev_process_link, m);
505f8da7 248 if (r < 0)
d2ebf952 249 return log_error_errno(r, "Failed to start device monitor: %m");
11a7f229 250
505f8da7
TG		 251 return 0;
252}
f579559b 253
1c8e710c
TG		 254int manager_rtnl_process_route(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
255 Manager *m = userdata;
256 Link *link = NULL;
257 uint16_t type;
258 uint32_t ifindex, priority = 0;
983226f3 259 unsigned char protocol, scope, tos, table, rt_type;
1c8e710c
TG		 260 int family;
261 unsigned char dst_prefixlen, src_prefixlen;
262 union in_addr_union dst = {}, gw = {}, src = {}, prefsrc = {};
263 Route *route = NULL;
264 int r;
265
266 assert(rtnl);
267 assert(message);
268 assert(m);
269
270 if (sd_netlink_message_is_error(message)) {
271 r = sd_netlink_message_get_errno(message);
272 if (r < 0)
e1694a75 273 log_warning_errno(r, "rtnl: failed to receive route, ignoring: %m");
1c8e710c
TG		 274
275 return 0;
276 }
277
278 r = sd_netlink_message_get_type(message, &type);
279 if (r < 0) {
e1694a75 280 log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
1c8e710c 281 return 0;
25a1bffc 282 } else if (!IN_SET(type, RTM_NEWROUTE, RTM_DELROUTE)) {
e1694a75 283 log_warning("rtnl: received unexpected message type when processing route, ignoring");
1c8e710c
TG		 284 return 0;
285 }
286
287 r = sd_netlink_message_read_u32(message, RTA_OIF, &ifindex);
288 if (r == -ENODATA) {
289 log_debug("rtnl: received route without ifindex, ignoring");
290 return 0;
291 } else if (r < 0) {
292 log_warning_errno(r, "rtnl: could not get ifindex from route, ignoring: %m");
293 return 0;
294 } else if (ifindex <= 0) {
295 log_warning("rtnl: received route message with invalid ifindex, ignoring: %d", ifindex);
296 return 0;
297 } else {
298 r = link_get(m, ifindex, &link);
299 if (r < 0 || !link) {
300 /* when enumerating we might be out of sync, but we will
301 * get the route again, so just ignore it */
302 if (!m->enumerating)
303 log_warning("rtnl: received route for nonexistent link (%d), ignoring", ifindex);
304 return 0;
305 }
306 }
307
308 r = sd_rtnl_message_route_get_family(message, &family);
309 if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
e1694a75 310 log_link_warning(link, "rtnl: received address with invalid family, ignoring");
1c8e710c
TG		 311 return 0;
312 }
313
314 r = sd_rtnl_message_route_get_protocol(message, &protocol);
315 if (r < 0) {
316 log_warning_errno(r, "rtnl: could not get route protocol: %m");
317 return 0;
318 }
319
320 switch (family) {
321 case AF_INET:
322 r = sd_netlink_message_read_in_addr(message, RTA_DST, &dst.in);
323 if (r < 0 && r != -ENODATA) {
324 log_link_warning_errno(link, r, "rtnl: received route without valid destination, ignoring: %m");
325 return 0;
326 }
327
328 r = sd_netlink_message_read_in_addr(message, RTA_GATEWAY, &gw.in);
329 if (r < 0 && r != -ENODATA) {
330 log_link_warning_errno(link, r, "rtnl: received route with invalid gateway, ignoring: %m");
331 return 0;
332 }
333
334 r = sd_netlink_message_read_in_addr(message, RTA_SRC, &src.in);
335 if (r < 0 && r != -ENODATA) {
336 log_link_warning_errno(link, r, "rtnl: received route with invalid source, ignoring: %m");
337 return 0;
338 }
339
340 r = sd_netlink_message_read_in_addr(message, RTA_PREFSRC, &prefsrc.in);
341 if (r < 0 && r != -ENODATA) {
342 log_link_warning_errno(link, r, "rtnl: received route with invalid preferred source, ignoring: %m");
343 return 0;
344 }
345
346 break;
347
348 case AF_INET6:
349 r = sd_netlink_message_read_in6_addr(message, RTA_DST, &dst.in6);
350 if (r < 0 && r != -ENODATA) {
351 log_link_warning_errno(link, r, "rtnl: received route without valid destination, ignoring: %m");
352 return 0;
353 }
354
355 r = sd_netlink_message_read_in6_addr(message, RTA_GATEWAY, &gw.in6);
356 if (r < 0 && r != -ENODATA) {
357 log_link_warning_errno(link, r, "rtnl: received route with invalid gateway, ignoring: %m");
358 return 0;
359 }
360
361 r = sd_netlink_message_read_in6_addr(message, RTA_SRC, &src.in6);
362 if (r < 0 && r != -ENODATA) {
363 log_link_warning_errno(link, r, "rtnl: received route with invalid source, ignoring: %m");
364 return 0;
365 }
366
367 r = sd_netlink_message_read_in6_addr(message, RTA_PREFSRC, &prefsrc.in6);
368 if (r < 0 && r != -ENODATA) {
369 log_link_warning_errno(link, r, "rtnl: received route with invalid preferred source, ignoring: %m");
370 return 0;
371 }
372
373 break;
374
375 default:
74dead34 376 assert_not_reached("Received unsupported address family");
1c8e710c
TG		 377 return 0;
378 }
379
380 r = sd_rtnl_message_route_get_dst_prefixlen(message, &dst_prefixlen);
381 if (r < 0) {
382 log_link_warning_errno(link, r, "rtnl: received route with invalid destination prefixlen, ignoring: %m");
383 return 0;
384 }
385
386 r = sd_rtnl_message_route_get_src_prefixlen(message, &src_prefixlen);
387 if (r < 0) {
388 log_link_warning_errno(link, r, "rtnl: received route with invalid source prefixlen, ignoring: %m");
389 return 0;
390 }
391
392 r = sd_rtnl_message_route_get_scope(message, &scope);
393 if (r < 0) {
394 log_link_warning_errno(link, r, "rtnl: received route with invalid scope, ignoring: %m");
395 return 0;
396 }
397
398 r = sd_rtnl_message_route_get_tos(message, &tos);
399 if (r < 0) {
400 log_link_warning_errno(link, r, "rtnl: received route with invalid tos, ignoring: %m");
401 return 0;
402 }
403
983226f3
SS		 404 r = sd_rtnl_message_route_get_type(message, &rt_type);
405 if (r < 0) {
406 log_link_warning_errno(link, r, "rtnl: received route with invalid type, ignoring: %m");
407 return 0;
408 }
409
1c8e710c
TG		 410 r = sd_rtnl_message_route_get_table(message, &table);
411 if (r < 0) {
412 log_link_warning_errno(link, r, "rtnl: received route with invalid table, ignoring: %m");
413 return 0;
414 }
415
416 r = sd_netlink_message_read_u32(message, RTA_PRIORITY, &priority);
417 if (r < 0 && r != -ENODATA) {
418 log_link_warning_errno(link, r, "rtnl: received route with invalid priority, ignoring: %m");
419 return 0;
420 }
421
e1694a75 422 (void) route_get(link, family, &dst, dst_prefixlen, tos, priority, table, &route);
1c8e710c
TG		 423
424 switch (type) {
425 case RTM_NEWROUTE:
426 if (!route) {
427 /* A route appeared that we did not request */
428 r = route_add_foreign(link, family, &dst, dst_prefixlen, tos, priority, table, &route);
e1694a75
YW		 429 if (r < 0) {
430 log_link_warning_errno(link, r, "Failed to add route, ignoring: %m");
1c8e710c 431 return 0;
e1694a75 432 }
1c8e710c
TG		 433 }
434
bbd15900 435 route_update(route, &src, src_prefixlen, &gw, &prefsrc, scope, protocol, rt_type);
1c8e710c
TG		 436
437 break;
438
439 case RTM_DELROUTE:
b9642f41 440 route_free(route);
1c8e710c 441 break;
b9642f41 442
1c8e710c
TG		 443 default:
444 assert_not_reached("Received invalid RTNL message type");
445 }
446
447 return 1;
448}
449
200a0868
TG		 450int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
451 Manager *m = userdata;
452 Link *link = NULL;
453 uint16_t type;
200a0868 454 unsigned char flags;
054f0db4
TG		 455 int family;
456 unsigned char prefixlen;
457 unsigned char scope;
458 union in_addr_union in_addr;
459 struct ifa_cacheinfo cinfo;
460 Address *address = NULL;
200a0868
TG		 461 char buf[INET6_ADDRSTRLEN], valid_buf[FORMAT_TIMESPAN_MAX];
462 const char *valid_str = NULL;
463 int r, ifindex;
464
465 assert(rtnl);
466 assert(message);
467 assert(m);
468
469 if (sd_netlink_message_is_error(message)) {
470 r = sd_netlink_message_get_errno(message);
471 if (r < 0)
e1694a75 472 log_warning_errno(r, "rtnl: failed to receive address, ignoring: %m");
200a0868
TG		 473
474 return 0;
475 }
476
477 r = sd_netlink_message_get_type(message, &type);
478 if (r < 0) {
e1694a75 479 log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
200a0868 480 return 0;
25a1bffc 481 } else if (!IN_SET(type, RTM_NEWADDR, RTM_DELADDR)) {
e1694a75 482 log_warning("rtnl: received unexpected message type when processing address, ignoring");
200a0868
TG		 483 return 0;
484 }
485
486 r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
487 if (r < 0) {
e1694a75 488 log_warning_errno(r, "rtnl: could not get ifindex from address, ignoring: %m");
200a0868
TG		 489 return 0;
490 } else if (ifindex <= 0) {
e1694a75 491 log_warning("rtnl: received address message with invalid ifindex, ignoring: %d", ifindex);
200a0868
TG		 492 return 0;
493 } else {
494 r = link_get(m, ifindex, &link);
495 if (r < 0 || !link) {
496 /* when enumerating we might be out of sync, but we will
497 * get the address again, so just ignore it */
498 if (!m->enumerating)
499 log_warning("rtnl: received address for nonexistent link (%d), ignoring", ifindex);
500 return 0;
501 }
502 }
503
054f0db4
TG		 504 r = sd_rtnl_message_addr_get_family(message, &family);
505 if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
e1694a75 506 log_link_warning(link, "rtnl: received address with invalid family, ignoring");
200a0868
TG		 507 return 0;
508 }
509
054f0db4 510 r = sd_rtnl_message_addr_get_prefixlen(message, &prefixlen);
200a0868
TG		 511 if (r < 0) {
512 log_link_warning_errno(link, r, "rtnl: received address with invalid prefixlen, ignoring: %m");
513 return 0;
514 }
515
054f0db4 516 r = sd_rtnl_message_addr_get_scope(message, &scope);
200a0868
TG		 517 if (r < 0) {
518 log_link_warning_errno(link, r, "rtnl: received address with invalid scope, ignoring: %m");
519 return 0;
520 }
521
522 r = sd_rtnl_message_addr_get_flags(message, &flags);
523 if (r < 0) {
524 log_link_warning_errno(link, r, "rtnl: received address with invalid flags, ignoring: %m");
525 return 0;
526 }
200a0868 527
054f0db4 528 switch (family) {
200a0868 529 case AF_INET:
054f0db4 530 r = sd_netlink_message_read_in_addr(message, IFA_LOCAL, &in_addr.in);
200a0868
TG		 531 if (r < 0) {
532 log_link_warning_errno(link, r, "rtnl: received address without valid address, ignoring: %m");
533 return 0;
534 }
535
536 break;
537
538 case AF_INET6:
054f0db4 539 r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &in_addr.in6);
200a0868
TG		 540 if (r < 0) {
541 log_link_warning_errno(link, r, "rtnl: received address without valid address, ignoring: %m");
542 return 0;
543 }
544
545 break;
546
547 default:
e1694a75 548 assert_not_reached("Received unsupported address family");
200a0868
TG		 549 }
550
054f0db4 551 if (!inet_ntop(family, &in_addr, buf, INET6_ADDRSTRLEN)) {
e1694a75 552 log_link_warning(link, "Could not print address, ignoring");
200a0868
TG		 553 return 0;
554 }
555
054f0db4 556 r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &cinfo);
e1694a75
YW		 557 if (r < 0 && r != -ENODATA) {
558 log_link_warning_errno(link, r, "rtnl: cannot get IFA_CACHEINFO attribute, ignoring: %m");
559 return 0;
560 } else if (r >= 0) {
4058d339 561 if (cinfo.ifa_valid != CACHE_INFO_INFINITY_LIFE_TIME)
200a0868 562 valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
054f0db4 563 cinfo.ifa_valid * USEC_PER_SEC,
200a0868
TG		 564 USEC_PER_SEC);
565 }
566
e1694a75 567 (void) address_get(link, family, &in_addr, prefixlen, &address);
200a0868
TG		 568
569 switch (type) {
570 case RTM_NEWADDR:
36c32f61 571 if (address)
4058d339 572 log_link_debug(link, "Updating address: %s/%u (valid %s%s)", buf, prefixlen,
87e4e28d 573 valid_str ? "for " : "forever", strempty(valid_str));
36c32f61 574 else {
adda1ed9
TG		 575 /* An address appeared that we did not request */
576 r = address_add_foreign(link, family, &in_addr, prefixlen, &address);
cf1d700d 577 if (r < 0) {
e1694a75 578 log_link_warning_errno(link, r, "Failed to add address %s/%u, ignoring: %m", buf, prefixlen);
cf1d700d
TG		 579 return 0;
580 } else
4058d339 581 log_link_debug(link, "Adding address: %s/%u (valid %s%s)", buf, prefixlen,
87e4e28d 582 valid_str ? "for " : "forever", strempty(valid_str));
200a0868
TG		 583 }
584
e1694a75
YW		 585 r = address_update(address, flags, scope, &cinfo);
586 if (r < 0) {
587 log_link_warning_errno(link, r, "Failed to update address %s/%u, ignoring: %m", buf, prefixlen);
588 return 0;
589 }
36c32f61 590
200a0868
TG		 591 break;
592
593 case RTM_DELADDR:
594
054f0db4 595 if (address) {
4058d339 596 log_link_debug(link, "Removing address: %s/%u (valid %s%s)", buf, prefixlen,
87e4e28d 597 valid_str ? "for " : "forever", strempty(valid_str));
e1694a75 598 (void) address_drop(address);
200a0868 599 } else
e1694a75 600 log_link_warning(link, "Removing non-existent address: %s/%u (valid %s%s), ignoring", buf, prefixlen,
87e4e28d 601 valid_str ? "for " : "forever", strempty(valid_str));
200a0868
TG		 602
603 break;
604 default:
605 assert_not_reached("Received invalid RTNL message type");
606 }
607
608 return 1;
609}
610
1c4baffc 611static int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
505f8da7
TG		 612 Manager *m = userdata;
613 Link *link = NULL;
4d473d5d 614 NetDev *netdev = NULL;
f2236469 615 uint16_t type;
ca4e095a 616 const char *name;
505f8da7 617 int r, ifindex;
f579559b 618
505f8da7
TG		 619 assert(rtnl);
620 assert(message);
f579559b
TG		 621 assert(m);
622
1c4baffc
TG		 623 if (sd_netlink_message_is_error(message)) {
624 r = sd_netlink_message_get_errno(message);
45af44d4 625 if (r < 0)
e1694a75 626 log_warning_errno(r, "rtnl: Could not receive link, ignoring: %m");
45af44d4
TG		 627
628 return 0;
629 }
630
1c4baffc 631 r = sd_netlink_message_get_type(message, &type);
f2236469 632 if (r < 0) {
e1694a75 633 log_warning_errno(r, "rtnl: Could not get message type, ignoring: %m");
f2236469 634 return 0;
25a1bffc 635 } else if (!IN_SET(type, RTM_NEWLINK, RTM_DELLINK)) {
e1694a75 636 log_warning("rtnl: Received unexpected message type when processing link, ignoring");
cdfee943 637 return 0;
f2236469
TG		 638 }
639
505f8da7 640 r = sd_rtnl_message_link_get_ifindex(message, &ifindex);
45af44d4 641 if (r < 0) {
e1694a75 642 log_warning_errno(r, "rtnl: Could not get ifindex from link, ignoring: %m");
45af44d4
TG		 643 return 0;
644 } else if (ifindex <= 0) {
e1694a75 645 log_warning("rtnl: received link message with invalid ifindex %d, ignoring", ifindex);
505f8da7 646 return 0;
a0db8e46 647 }
f579559b 648
1c4baffc 649 r = sd_netlink_message_read_string(message, IFLA_IFNAME, &name);
45af44d4 650 if (r < 0) {
e1694a75 651 log_warning_errno(r, "rtnl: Received link message without ifname, ignoring: %m");
4d473d5d 652 return 0;
a0db8e46
ZJS		 653 }
654
655 (void) link_get(m, ifindex, &link);
656 (void) netdev_get(m, name, &netdev);
4d473d5d
TG		 657
658 switch (type) {
659 case RTM_NEWLINK:
660 if (!link) {
661 /* link is new, so add it */
662 r = link_add(m, message, &link);
663 if (r < 0) {
e1694a75 664 log_warning_errno(r, "Could not add new link, ignoring: %m");
4d473d5d
TG		 665 return 0;
666 }
667 }
668
669 if (netdev) {
670 /* netdev exists, so make sure the ifindex matches */
505f8da7
TG		 671 r = netdev_set_ifindex(netdev, message);
672 if (r < 0) {
e1694a75 673 log_warning_errno(r, "Could not set ifindex on netdev, ignoring: %m");
505f8da7
TG		 674 return 0;
675 }
676 }
e1202047 677
f2236469 678 r = link_update(link, message);
e1694a75
YW		 679 if (r < 0) {
680 log_warning_errno(r, "Could not update link, ignoring: %m");
f2236469 681 return 0;
e1694a75 682 }
4d473d5d
TG		 683
684 break;
685
686 case RTM_DELLINK:
687 link_drop(link);
688 netdev_drop(netdev);
689
690 break;
691
692 default:
693 assert_not_reached("Received invalid RTNL message type.");
f2236469 694 }
505f8da7
TG		 695
696 return 1;
697}
698
bce67bbe 699int manager_rtnl_process_rule(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) {
926062f0
SS		 700 uint8_t tos = 0, to_prefixlen = 0, from_prefixlen = 0, protocol = 0;
701 struct fib_rule_port_range sport = {}, dport = {};
36e6e28b 702 union in_addr_union to = {}, from = {};
bce67bbe 703 RoutingPolicyRule *rule = NULL;
bce67bbe 704 uint32_t fwmark = 0, table = 0;
eeab051b 705 const char *iif = NULL, *oif = NULL;
bce67bbe
SS		 706 Manager *m = userdata;
707 uint16_t type;
708 int family;
709 int r;
710
711 assert(rtnl);
712 assert(message);
713 assert(m);
714
715 if (sd_netlink_message_is_error(message)) {
716 r = sd_netlink_message_get_errno(message);
717 if (r < 0)
e1694a75 718 log_warning_errno(r, "rtnl: failed to receive rule, ignoring: %m");
bce67bbe
SS		 719
720 return 0;
721 }
722
723 r = sd_netlink_message_get_type(message, &type);
724 if (r < 0) {
e1694a75 725 log_warning_errno(r, "rtnl: could not get message type, ignoring: %m");
bce67bbe
SS		 726 return 0;
727 } else if (!IN_SET(type, RTM_NEWRULE, RTM_DELRULE)) {
e1694a75 728 log_warning("rtnl: received unexpected message type '%u' when processing rule, ignoring", type);
bce67bbe
SS		 729 return 0;
730 }
731
732 r = sd_rtnl_message_get_family(message, &family);
615ded62 733 if (r < 0) {
e1694a75 734 log_warning_errno(r, "rtnl: could not get rule family, ignoring: %m");
615ded62
YW		 735 return 0;
736 } else if (!IN_SET(family, AF_INET, AF_INET6)) {
e1694a75 737 log_debug("rtnl: received address with invalid family %u, ignoring", family);
bce67bbe
SS		 738 return 0;
739 }
740
741 switch (family) {
742 case AF_INET:
743 r = sd_netlink_message_read_in_addr(message, FRA_SRC, &from.in);
e1694a75
YW		 744 if (r < 0 && r != -ENODATA) {
745 log_warning_errno(r, "rtnl: could not get FRA_SRC attribute, ignoring: %m");
746 return 0;
747 } else if (r >= 0) {
bce67bbe 748 r = sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(message, &from_prefixlen);
e1694a75 749 if (r < 0) {
3fe91079 750 log_warning_errno(r, "rtnl: failed to retrieve rule from prefix length, ignoring: %m");
e1694a75
YW		 751 return 0;
752 }
bce67bbe
SS		 753 }
754
755 r = sd_netlink_message_read_in_addr(message, FRA_DST, &to.in);
e1694a75
YW		 756 if (r < 0 && r != -ENODATA) {
757 log_warning_errno(r, "rtnl: could not get FRA_DST attribute, ignoring: %m");
758 return 0;
759 } else if (r >= 0) {
bce67bbe 760 r = sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(message, &to_prefixlen);
e1694a75 761 if (r < 0) {
3fe91079 762 log_warning_errno(r, "rtnl: failed to retrieve rule to prefix length, ignoring: %m");
e1694a75
YW		 763 return 0;
764 }
bce67bbe
SS		 765 }
766
767 break;
768
769 case AF_INET6:
770 r = sd_netlink_message_read_in6_addr(message, FRA_SRC, &from.in6);
e1694a75
YW		 771 if (r < 0 && r != -ENODATA) {
772 log_warning_errno(r, "rtnl: could not get FRA_SRC attribute, ignoring: %m");
773 return 0;
774 } else if (r >= 0) {
bce67bbe 775 r = sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(message, &from_prefixlen);
e1694a75 776 if (r < 0) {
3fe91079 777 log_warning_errno(r, "rtnl: failed to retrieve rule from prefix length, ignoring: %m");
e1694a75
YW		 778 return 0;
779 }
bce67bbe
SS		 780 }
781
782 r = sd_netlink_message_read_in6_addr(message, FRA_DST, &to.in6);
e1694a75
YW		 783 if (r < 0 && r != -ENODATA) {
784 log_warning_errno(r, "rtnl: could not get FRA_DST attribute, ignoring: %m");
785 return 0;
786 } else if (r >= 0) {
bce67bbe 787 r = sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(message, &to_prefixlen);
e1694a75 788 if (r < 0) {
3fe91079 789 log_warning_errno(r, "rtnl: failed to retrieve rule to prefix length, ignoring: %m");
e1694a75
YW		 790 return 0;
791 }
bce67bbe
SS		 792 }
793
794 break;
795
796 default:
74dead34 797 assert_not_reached("Received unsupported address family");
bce67bbe
SS		 798 }
799
800 if (from_prefixlen == 0 && to_prefixlen == 0)
801 return 0;
802
e1694a75
YW		 803 r = sd_netlink_message_read_u32(message, FRA_FWMARK, &fwmark);
804 if (r < 0 && r != -ENODATA) {
805 log_warning_errno(r, "rtnl: could not get FRA_FWMARK attribute, ignoring: %m");
806 return 0;
807 }
808
809 r = sd_netlink_message_read_u32(message, FRA_TABLE, &table);
810 if (r < 0 && r != -ENODATA) {
811 log_warning_errno(r, "rtnl: could not get FRA_TABLE attribute, ignoring: %m");
812 return 0;
813 }
814
815 r = sd_rtnl_message_routing_policy_rule_get_tos(message, &tos);
816 if (r < 0 && r != -ENODATA) {
817 log_warning_errno(r, "rtnl: could not get ip rule TOS, ignoring: %m");
818 return 0;
819 }
820
eeab051b 821 r = sd_netlink_message_read_string(message, FRA_IIFNAME, &iif);
e1694a75
YW		 822 if (r < 0 && r != -ENODATA) {
823 log_warning_errno(r, "rtnl: could not get FRA_IIFNAME attribute, ignoring: %m");
824 return 0;
825 }
826
eeab051b 827 r = sd_netlink_message_read_string(message, FRA_OIFNAME, &oif);
e1694a75
YW		 828 if (r < 0 && r != -ENODATA) {
829 log_warning_errno(r, "rtnl: could not get FRA_OIFNAME attribute, ignoring: %m");
830 return 0;
831 }
bce67bbe 832
926062f0
SS		 833 r = sd_netlink_message_read_u8(message, FRA_IP_PROTO, &protocol);
834 if (r < 0 && r != -ENODATA) {
835 log_warning_errno(r, "rtnl: could not get FRA_IP_PROTO attribute, ignoring: %m");
836 return 0;
837 }
838
839 r = sd_netlink_message_read(message, FRA_SPORT_RANGE, sizeof(sport), (void *) &sport);
840 if (r < 0 && r != -ENODATA) {
841 log_warning_errno(r, "rtnl: could not get FRA_SPORT_RANGE attribute, ignoring: %m");
842 return 0;
843 }
844
845 r = sd_netlink_message_read(message, FRA_DPORT_RANGE, sizeof(dport), (void *) &dport);
846 if (r < 0 && r != -ENODATA) {
847 log_warning_errno(r, "rtnl: could not get FRA_DPORT_RANGE attribute, ignoring: %m");
848 return 0;
849 }
850
851 (void) routing_policy_rule_get(m, family, &from, from_prefixlen, &to, to_prefixlen, tos, fwmark, table, iif, oif, protocol, &sport, &dport, &rule);
bce67bbe
SS		 852
853 switch (type) {
854 case RTM_NEWRULE:
508f63b4 855 if (!rule) {
926062f0 856 r = routing_policy_rule_add_foreign(m, family, &from, from_prefixlen, &to, to_prefixlen, tos, fwmark, table, iif, oif, protocol, &sport, &dport, &rule);
bce67bbe 857 if (r < 0) {
e1694a75 858 log_warning_errno(r, "Could not add rule, ignoring: %m");
bce67bbe
SS		 859 return 0;
860 }
861 }
862 break;
863 case RTM_DELRULE:
864 routing_policy_rule_free(rule);
865
866 break;
867
868 default:
869 assert_not_reached("Received invalid RTNL message type");
870 }
871
872 return 1;
873}
874
5fae368b
TG		 875static int systemd_netlink_fd(void) {
876 int n, fd, rtnl_fd = -EINVAL;
877
878 n = sd_listen_fds(true);
879 if (n <= 0)
880 return -EINVAL;
881
882 for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) {
883 if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) {
884 if (rtnl_fd >= 0)
885 return -EINVAL;
886
887 rtnl_fd = fd;
888 }
889 }
890
891 return rtnl_fd;
892}
893
05d0c2e3
JT		 894static int manager_connect_genl(Manager *m) {
895 int r;
896
897 assert(m);
898
899 r = sd_genl_socket_open(&m->genl);
900 if (r < 0)
901 return r;
902
903 r = sd_netlink_inc_rcvbuf(m->genl, RCVBUF_SIZE);
904 if (r < 0)
905 return r;
906
907 r = sd_netlink_attach_event(m->genl, m->event, 0);
908 if (r < 0)
909 return r;
910
911 return 0;
912}
913
5fae368b
TG		 914static int manager_connect_rtnl(Manager *m) {
915 int fd, r;
505f8da7
TG		 916
917 assert(m);
505f8da7 918
5fae368b
TG		 919 fd = systemd_netlink_fd();
920 if (fd < 0)
1c4baffc 921 r = sd_netlink_open(&m->rtnl);
5fae368b 922 else
1c4baffc 923 r = sd_netlink_open_fd(&m->rtnl, fd);
505f8da7
TG		 924 if (r < 0)
925 return r;
926
1c4baffc 927 r = sd_netlink_inc_rcvbuf(m->rtnl, RCVBUF_SIZE);
f579559b 928 if (r < 0)
bf5332d2 929 return r;
f579559b 930
1c4baffc 931 r = sd_netlink_attach_event(m->rtnl, m->event, 0);
505f8da7
TG		 932 if (r < 0)
933 return r;
f579559b 934
8190a388 935 r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWLINK, &manager_rtnl_process_link, NULL, m, "network-rtnl_process_link");
5fae368b
TG		 936 if (r < 0)
937 return r;
505f8da7 938
8190a388 939 r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELLINK, &manager_rtnl_process_link, NULL, m, "network-rtnl_process_link");
5fae368b
TG		 940 if (r < 0)
941 return r;
45af44d4 942
8190a388 943 r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWADDR, &manager_rtnl_process_address, NULL, m, "network-rtnl_process_address");
5fae368b
TG		 944 if (r < 0)
945 return r;
946
8190a388 947 r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELADDR, &manager_rtnl_process_address, NULL, m, "network-rtnl_process_address");
5fae368b
TG		 948 if (r < 0)
949 return r;
950
8190a388 951 r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWROUTE, &manager_rtnl_process_route, NULL, m, "network-rtnl_process_route");
1c8e710c
TG		 952 if (r < 0)
953 return r;
954
8190a388 955 r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELROUTE, &manager_rtnl_process_route, NULL, m, "network-rtnl_process_route");
1c8e710c
TG		 956 if (r < 0)
957 return r;
958
8190a388 959 r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWRULE, &manager_rtnl_process_rule, NULL, m, "network-rtnl_process_rule");
bce67bbe
SS		 960 if (r < 0)
961 return r;
962
8190a388 963 r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELRULE, &manager_rtnl_process_rule, NULL, m, "network-rtnl_process_rule");
bce67bbe
SS		 964 if (r < 0)
965 return r;
966
5fae368b 967 return 0;
45af44d4 968}
505f8da7 969
5512a963 970static int ordered_set_put_in_addr_data(OrderedSet *s, const struct in_addr_data *address) {
84de38c5
TG		 971 char *p;
972 int r;
973
974 assert(s);
5512a963
LP		 975 assert(address);
976
977 r = in_addr_to_string(address->family, &address->address, &p);
978 if (r < 0)
979 return r;
980
981 r = ordered_set_consume(s, p);
982 if (r == -EEXIST)
983 return 0;
984
985 return r;
986}
987
988static int ordered_set_put_in_addr_datav(OrderedSet *s, const struct in_addr_data *addresses, unsigned n) {
989 int r, c = 0;
990 unsigned i;
991
992 assert(s);
993 assert(addresses || n == 0);
994
995 for (i = 0; i < n; i++) {
996 r = ordered_set_put_in_addr_data(s, addresses+i);
997 if (r < 0)
998 return r;
999
1000 c += r;
1001 }
1002
1003 return c;
1004}
1005
1006static int ordered_set_put_in4_addr(OrderedSet *s, const struct in_addr *address) {
1007 char *p;
1008 int r;
1009
1010 assert(s);
1011 assert(address);
84de38c5
TG		 1012
1013 r = in_addr_to_string(AF_INET, (const union in_addr_union*) address, &p);
1014 if (r < 0)
1015 return r;
1016
00616955 1017 r = ordered_set_consume(s, p);
84de38c5
TG		 1018 if (r == -EEXIST)
1019 return 0;
1020
1021 return r;
1022}
1023
5512a963
LP		 1024static int ordered_set_put_in4_addrv(OrderedSet *s, const struct in_addr *addresses, unsigned n) {
1025 int r, c = 0;
1026 unsigned i;
84de38c5
TG		 1027
1028 assert(s);
5512a963 1029 assert(n == 0 || addresses);
84de38c5
TG		 1030
1031 for (i = 0; i < n; i++) {
5512a963 1032 r = ordered_set_put_in4_addr(s, addresses+i);
84de38c5
TG		 1033 if (r < 0)
1034 return r;
1035
1036 c += r;
1037 }
1038
1039 return c;
1040}
1041
00616955 1042static void print_string_set(FILE *f, const char *field, OrderedSet *s) {
84de38c5
TG		 1043 bool space = false;
1044 Iterator i;
1045 char *p;
1046
00616955 1047 if (ordered_set_isempty(s))
84de38c5
TG		 1048 return;
1049
0d536673 1050 fputs(field, f);
84de38c5 1051
d390f8ef
LP		 1052 ORDERED_SET_FOREACH(p, s, i)
1053 fputs_with_space(f, p, NULL, &space);
1054
0d536673 1055 fputc('\n', f);
84de38c5
TG		 1056}
1057
1058static int manager_save(Manager *m) {
00616955 1059 _cleanup_ordered_set_free_free_ OrderedSet *dns = NULL, *ntp = NULL, *search_domains = NULL, *route_domains = NULL;
84de38c5
TG		 1060 Link *link;
1061 Iterator i;
1062 _cleanup_free_ char *temp_path = NULL;
1063 _cleanup_fclose_ FILE *f = NULL;
1064 LinkOperationalState operstate = LINK_OPERSTATE_OFF;
1065 const char *operstate_str;
1066 int r;
1067
1068 assert(m);
1069 assert(m->state_file);
1070
1071 /* We add all NTP and DNS server to a set, to filter out duplicates */
00616955 1072 dns = ordered_set_new(&string_hash_ops);
84de38c5
TG		 1073 if (!dns)
1074 return -ENOMEM;
1075
00616955 1076 ntp = ordered_set_new(&string_hash_ops);
84de38c5
TG		 1077 if (!ntp)
1078 return -ENOMEM;
1079
482d1aeb 1080 search_domains = ordered_set_new(&dns_name_hash_ops);
3df9bec5
LP		 1081 if (!search_domains)
1082 return -ENOMEM;
1083
482d1aeb 1084 route_domains = ordered_set_new(&dns_name_hash_ops);
3df9bec5 1085 if (!route_domains)
84de38c5
TG		 1086 return -ENOMEM;
1087
1088 HASHMAP_FOREACH(link, m->links, i) {
1089 if (link->flags & IFF_LOOPBACK)
1090 continue;
1091
1092 if (link->operstate > operstate)
1093 operstate = link->operstate;
1094
1095 if (!link->network)
1096 continue;
1097
1098 /* First add the static configured entries */
5512a963 1099 r = ordered_set_put_in_addr_datav(dns, link->network->dns, link->network->n_dns);
84de38c5
TG		 1100 if (r < 0)
1101 return r;
1102
00616955 1103 r = ordered_set_put_strdupv(ntp, link->network->ntp);
84de38c5
TG		 1104 if (r < 0)
1105 return r;
1106
00616955 1107 r = ordered_set_put_strdupv(search_domains, link->network->search_domains);
3df9bec5
LP		 1108 if (r < 0)
1109 return r;
1110
00616955 1111 r = ordered_set_put_strdupv(route_domains, link->network->route_domains);
84de38c5
TG		 1112 if (r < 0)
1113 return r;
1114
1115 if (!link->dhcp_lease)
1116 continue;
1117
1118 /* Secondly, add the entries acquired via DHCP */
27cb34f5 1119 if (link->network->dhcp_use_dns) {
84de38c5
TG		 1120 const struct in_addr *addresses;
1121
1122 r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses);
1123 if (r > 0) {
5512a963 1124 r = ordered_set_put_in4_addrv(dns, addresses, r);
84de38c5
TG		 1125 if (r < 0)
1126 return r;
1127 } else if (r < 0 && r != -ENODATA)
1128 return r;
1129 }
1130
27cb34f5 1131 if (link->network->dhcp_use_ntp) {
84de38c5
TG		 1132 const struct in_addr *addresses;
1133
1134 r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses);
1135 if (r > 0) {
5512a963 1136 r = ordered_set_put_in4_addrv(ntp, addresses, r);
84de38c5
TG		 1137 if (r < 0)
1138 return r;
1139 } else if (r < 0 && r != -ENODATA)
1140 return r;
1141 }
1142
b2a81c0b 1143 if (link->network->dhcp_use_domains != DHCP_USE_DOMAINS_NO) {
84de38c5 1144 const char *domainname;
b85bc551 1145 char **domains = NULL;
84de38c5 1146
b85bc551 1147 OrderedSet *target_domains = (link->network->dhcp_use_domains == DHCP_USE_DOMAINS_YES) ? search_domains : route_domains;
84de38c5
TG		 1148 r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname);
1149 if (r >= 0) {
b85bc551
DW		 1150 r = ordered_set_put_strdup(target_domains, domainname);
1151 if (r < 0)
1152 return r;
1153 } else if (r != -ENODATA)
1154 return r;
b2a81c0b 1155
b85bc551
DW		 1156 r = sd_dhcp_lease_get_search_domains(link->dhcp_lease, &domains);
1157 if (r >= 0) {
1158 r = ordered_set_put_strdupv(target_domains, domains);
84de38c5
TG		 1159 if (r < 0)
1160 return r;
1161 } else if (r != -ENODATA)
1162 return r;
1163 }
1164 }
1165
1166 operstate_str = link_operstate_to_string(operstate);
1167 assert(operstate_str);
1168
1169 r = fopen_temporary(m->state_file, &f, &temp_path);
1170 if (r < 0)
1171 return r;
1172
0d536673 1173 (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
5512a963 1174 (void) fchmod(fileno(f), 0644);
84de38c5
TG		 1175
1176 fprintf(f,
1177 "# This is private data. Do not parse.\n"
1178 "OPER_STATE=%s\n", operstate_str);
1179
1180 print_string_set(f, "DNS=", dns);
1181 print_string_set(f, "NTP=", ntp);
3df9bec5
LP		 1182 print_string_set(f, "DOMAINS=", search_domains);
1183 print_string_set(f, "ROUTE_DOMAINS=", route_domains);
84de38c5 1184
458d8ae3
ZJS		 1185 r = routing_policy_serialize_rules(m->rules, f);
1186 if (r < 0)
1187 goto fail;
bce67bbe 1188
84de38c5
TG		 1189 r = fflush_and_check(f);
1190 if (r < 0)
1191 goto fail;
1192
1193 if (rename(temp_path, m->state_file) < 0) {
1194 r = -errno;
1195 goto fail;
1196 }
1197
1198 if (m->operational_state != operstate) {
1199 m->operational_state = operstate;
1200 r = manager_send_changed(m, "OperationalState", NULL);
1201 if (r < 0)
1202 log_error_errno(r, "Could not emit changed OperationalState: %m");
1203 }
1204
1205 m->dirty = false;
1206
1207 return 0;
1208
1209fail:
1210 (void) unlink(m->state_file);
1211 (void) unlink(temp_path);
1212
1213 return log_error_errno(r, "Failed to save network state to %s: %m", m->state_file);
1214}
1215
1216static int manager_dirty_handler(sd_event_source *s, void *userdata) {
1217 Manager *m = userdata;
1218 Link *link;
1219 Iterator i;
84de38c5
TG		 1220
1221 assert(m);
1222
1223 if (m->dirty)
1224 manager_save(m);
1225
a0e8e4cf
YW		 1226 SET_FOREACH(link, m->dirty_links, i)
1227 if (link_save(link) >= 0)
84de38c5 1228 link_clean(link);
84de38c5
TG		 1229
1230 return 1;
1231}
1232
e133b289
PF		 1233Link *manager_dhcp6_prefix_get(Manager *m, struct in6_addr *addr) {
1234 assert_return(m, NULL);
e133b289
PF		 1235 assert_return(addr, NULL);
1236
1237 return hashmap_get(m->dhcp6_prefixes, addr);
1238}
1239
c8ee637e 1240static int dhcp6_route_add_handler(sd_netlink *nl, sd_netlink_message *m, void *userdata) {
1046bf9b 1241 Link *link = userdata;
9f386c6d 1242 int r;
9f386c6d 1243
1046bf9b
YW		 1244 assert(link);
1245
9f386c6d 1246 r = sd_netlink_message_get_errno(m);
e1d737ef 1247 if (r < 0 && r != -EEXIST)
1046bf9b 1248 log_link_debug_errno(link, r, "Received error adding DHCPv6 Prefix Delegation route: %m");
9f386c6d
PF		 1249
1250 return 0;
1251}
1252
3e570042
YW		 1253static void dhcp6_prefixes_hash_func(const void *p, struct siphash *state) {
1254 const struct in6_addr *addr = p;
1255
1256 assert(p);
1257
1258 siphash24_compress(addr, sizeof(*addr), state);
1259}
1260
1261static int dhcp6_prefixes_compare_func(const void *_a, const void *_b) {
1262 const struct in6_addr *a = _a, *b = _b;
1263
1264 return memcmp(a, b, sizeof(*a));
1265}
1266
1267static const struct hash_ops dhcp6_prefixes_hash_ops = {
1268 .hash = dhcp6_prefixes_hash_func,
1269 .compare = dhcp6_prefixes_compare_func,
1270};
1271
e133b289 1272int manager_dhcp6_prefix_add(Manager *m, struct in6_addr *addr, Link *link) {
e1d737ef 1273 _cleanup_free_ char *buf = NULL;
3e570042
YW		 1274 Route *route;
1275 int r;
9f386c6d 1276
e133b289 1277 assert_return(m, -EINVAL);
e133b289
PF		 1278 assert_return(addr, -EINVAL);
1279
9f386c6d
PF		 1280 r = route_add(link, AF_INET6, (union in_addr_union *) addr, 64,
1281 0, 0, 0, &route);
1282 if (r < 0)
1283 return r;
1284
c8ee637e 1285 r = route_configure(route, link, dhcp6_route_add_handler);
9f386c6d
PF		 1286 if (r < 0)
1287 return r;
1288
e1d737ef
PF		 1289 (void) in_addr_to_string(AF_INET6, (union in_addr_union *) addr, &buf);
1290 log_link_debug(link, "Adding prefix route %s/64", strnull(buf));
1291
3e570042
YW		 1292 r = hashmap_ensure_allocated(&m->dhcp6_prefixes, &dhcp6_prefixes_hash_ops);
1293 if (r < 0)
1294 return r;
1295
e133b289
PF		 1296 return hashmap_put(m->dhcp6_prefixes, addr, link);
1297}
1298
c8ee637e 1299static int dhcp6_route_remove_handler(sd_netlink *nl, sd_netlink_message *m, void *userdata) {
1046bf9b 1300 Link *link = userdata;
9f386c6d 1301 int r;
9f386c6d 1302
1046bf9b
YW		 1303 assert(link);
1304
9f386c6d 1305 r = sd_netlink_message_get_errno(m);
e1d737ef 1306 if (r < 0)
1046bf9b 1307 log_link_debug_errno(link, r, "Received error on DHCPv6 Prefix Delegation route removal: %m");
9f386c6d 1308
0ae286e6 1309 return 1;
9f386c6d
PF		 1310}
1311
fdb20b7c 1312static int manager_dhcp6_prefix_remove(Manager *m, struct in6_addr *addr) {
3e570042
YW		 1313 _cleanup_free_ char *buf = NULL;
1314 Route *route;
e133b289 1315 Link *l;
9f386c6d 1316 int r;
e133b289
PF		 1317
1318 assert_return(m, -EINVAL);
e133b289
PF		 1319 assert_return(addr, -EINVAL);
1320
1321 l = hashmap_remove(m->dhcp6_prefixes, addr);
1322 if (!l)
1323 return -EINVAL;
1324
1325 (void) sd_radv_remove_prefix(l->radv, addr, 64);
9f386c6d
PF		 1326 r = route_get(l, AF_INET6, (union in_addr_union *) addr, 64,
1327 0, 0, 0, &route);
e1d737ef
PF		 1328 if (r < 0)
1329 return r;
1330
c8ee637e 1331 r = route_remove(route, l, dhcp6_route_remove_handler);
e1d737ef
PF		 1332 if (r < 0)
1333 return r;
1334
1335 (void) in_addr_to_string(AF_INET6, (union in_addr_union *) addr, &buf);
1336 log_link_debug(l, "Removing prefix route %s/64", strnull(buf));
e133b289
PF		 1337
1338 return 0;
1339}
1340
1341int manager_dhcp6_prefix_remove_all(Manager *m, Link *link) {
3e570042 1342 struct in6_addr *addr;
e133b289
PF		 1343 Iterator i;
1344 Link *l;
e133b289
PF		 1345
1346 assert_return(m, -EINVAL);
b7d16a91 1347 assert_return(link, -EINVAL);
e133b289
PF		 1348
1349 HASHMAP_FOREACH_KEY(l, addr, m->dhcp6_prefixes, i) {
1350 if (l != link)
1351 continue;
1352
9f386c6d 1353 (void) manager_dhcp6_prefix_remove(m, addr);
e133b289
PF		 1354 }
1355
1356 return 0;
1357}
1358
3534a043 1359int manager_new(Manager **ret) {
8e766630 1360 _cleanup_(manager_freep) Manager *m = NULL;
45af44d4 1361 int r;
f579559b 1362
5fae368b
TG		 1363 m = new0(Manager, 1);
1364 if (!m)
1365 return -ENOMEM;
45af44d4 1366
5fae368b
TG		 1367 m->state_file = strdup("/run/systemd/netif/state");
1368 if (!m->state_file)
1369 return -ENOMEM;
1370
3534a043
YW		 1371 r = sd_event_default(&m->event);
1372 if (r < 0)
1373 return r;
1374
05e21627
YW		 1375 (void) sd_event_set_watchdog(m->event, true);
1376 (void) sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
1377 (void) sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
5fae368b 1378
84de38c5
TG		 1379 r = sd_event_add_post(m->event, NULL, manager_dirty_handler, m);
1380 if (r < 0)
1381 return r;
1382
5fae368b 1383 r = manager_connect_rtnl(m);
45af44d4
TG		 1384 if (r < 0)
1385 return r;
1386
05d0c2e3
JT		 1387 r = manager_connect_genl(m);
1388 if (r < 0)
1389 return r;
1390
5fae368b
TG		 1391 r = manager_connect_udev(m);
1392 if (r < 0)
1393 return r;
45af44d4 1394
5fae368b 1395 LIST_HEAD_INIT(m->networks);
f579559b 1396
05d0c2e3
JT		 1397 r = sd_resolve_default(&m->resolve);
1398 if (r < 0)
1399 return r;
1400
1401 r = sd_resolve_attach_event(m->resolve, m->event, 0);
1402 if (r < 0)
1403 return r;
1404
5fae368b
TG		 1405 r = setup_default_address_pool(m);
1406 if (r < 0)
1407 return r;
f579559b 1408
8341a5c3 1409 m->duid.type = DUID_TYPE_EN;
413708d1 1410
458d8ae3 1411 (void) routing_policy_load_rules(m->state_file, &m->rules_saved);
bce67bbe 1412
1cc6c93a 1413 *ret = TAKE_PTR(m);
f579559b 1414
f579559b
TG		 1415 return 0;
1416}
1417
5fae368b 1418void manager_free(Manager *m) {
c4397d94 1419 AddressPool *pool;
5fae368b 1420 Network *network;
5fae368b 1421 Link *link;
f579559b 1422
5fae368b
TG		 1423 if (!m)
1424 return;
505f8da7 1425
5fae368b 1426 free(m->state_file);
505f8da7 1427
1046bf9b
YW		 1428 sd_netlink_unref(m->rtnl);
1429 sd_netlink_unref(m->genl);
c195364d 1430 sd_resolve_unref(m->resolve);
1046bf9b 1431
bce67bbe
SS		 1432 while ((network = m->networks))
1433 network_free(network);
1434
e133b289 1435 while ((link = hashmap_first(m->dhcp6_prefixes)))
65dd5e31 1436 manager_dhcp6_prefix_remove_all(m, link);
e133b289
PF		 1437 hashmap_free(m->dhcp6_prefixes);
1438
f61365e5 1439 while ((link = hashmap_steal_first(m->links))) {
65dd5e31 1440 if (link->dhcp6_client)
f61365e5 1441 (void) dhcp6_lease_pd_prefix_lost(link->dhcp6_client, link);
5fae368b 1442 link_unref(link);
65dd5e31 1443 }
f579559b 1444
c4397d94
YW		 1445 m->dirty_links = set_free_with_destructor(m->dirty_links, link_unref);
1446 m->links = hashmap_free(m->links);
1447 m->links_requesting_uuid = set_free(m->links_requesting_uuid);
27dfc982
YW		 1448 set_free(m->duids_requesting_uuid);
1449
dbffab87
TG		 1450 hashmap_free(m->networks_by_name);
1451
c4397d94 1452 m->netdevs = hashmap_free_with_destructor(m->netdevs, netdev_unref);
5fae368b
TG		 1453
1454 while ((pool = m->address_pools))
1455 address_pool_free(pool);
1456
f19ee681
YW		 1457 /* routing_policy_rule_free() access m->rules and m->rules_foreign.
1458 * So, it is necessary to set NULL after the sets are freed. */
1459 m->rules = set_free_with_destructor(m->rules, routing_policy_rule_free);
1460 m->rules_foreign = set_free_with_destructor(m->rules_foreign, routing_policy_rule_free);
b921fcb2 1461 set_free_with_destructor(m->rules_saved, routing_policy_rule_free);
bce67bbe 1462
2f5b4a77 1463 sd_event_unref(m->event);
5fae368b 1464
d2ebf952 1465 sd_device_monitor_unref(m->device_monitor);
7d20d375
TG		 1466
1467 sd_bus_unref(m->bus);
7d20d375 1468
7901cea1
MP		 1469 free(m->dynamic_timezone);
1470 free(m->dynamic_hostname);
1471
5fae368b
TG		 1472 free(m);
1473}
1474
b76d99d9 1475int manager_start(Manager *m) {
84de38c5
TG		 1476 Link *link;
1477 Iterator i;
1478
a97dcc12
TG		 1479 assert(m);
1480
84de38c5
TG		 1481 /* The dirty handler will deal with future serialization, but the first one
1482 must be done explicitly. */
1483
1484 manager_save(m);
1485
1486 HASHMAP_FOREACH(link, m->links, i)
1487 link_save(link);
1488
b76d99d9 1489 return 0;
a97dcc12
TG		 1490}
1491
5fae368b
TG		 1492int manager_load_config(Manager *m) {
1493 int r;
1494
1495 /* update timestamp */
1496 paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, true);
1497
1498 r = netdev_load(m);
f579559b
TG		 1499 if (r < 0)
1500 return r;
1501
5fae368b 1502 r = network_load(m);
9021bb9f
TG		 1503 if (r < 0)
1504 return r;
1505
f579559b
TG		 1506 return 0;
1507}
f882c247 1508
5fae368b
TG		 1509bool manager_should_reload(Manager *m) {
1510 return paths_check_timestamp(network_dirs, &m->network_dirs_ts_usec, false);
1511}
1512
1513int manager_rtnl_enumerate_links(Manager *m) {
4afd3348 1514 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1c4baffc 1515 sd_netlink_message *link;
f882c247
TG		 1516 int r;
1517
5da8149f 1518 assert(m);
5fae368b 1519 assert(m->rtnl);
5da8149f 1520
5fae368b 1521 r = sd_rtnl_message_new_link(m->rtnl, &req, RTM_GETLINK, 0);
f882c247
TG		 1522 if (r < 0)
1523 return r;
1524
1c4baffc 1525 r = sd_netlink_message_request_dump(req, true);
dd3efc09
TG		 1526 if (r < 0)
1527 return r;
1528
1c4baffc 1529 r = sd_netlink_call(m->rtnl, req, 0, &reply);
f2236469
TG		 1530 if (r < 0)
1531 return r;
1532
1c4baffc 1533 for (link = reply; link; link = sd_netlink_message_next(link)) {
5fae368b 1534 int k;
2e9f08ea 1535
6a24f148
TG		 1536 m->enumerating = true;
1537
5fae368b
TG		 1538 k = manager_rtnl_process_link(m->rtnl, link, m);
1539 if (k < 0)
1540 r = k;
6a24f148
TG		 1541
1542 m->enumerating = false;
5fae368b 1543 }
2e9f08ea 1544
5fae368b 1545 return r;
f882c247 1546}
3bef724f 1547
5fae368b 1548int manager_rtnl_enumerate_addresses(Manager *m) {
4afd3348 1549 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1c4baffc 1550 sd_netlink_message *addr;
1346b1f0
TG		 1551 int r;
1552
5fae368b
TG		 1553 assert(m);
1554 assert(m->rtnl);
bcbca829 1555
5fae368b
TG		 1556 r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, 0, 0);
1557 if (r < 0)
1558 return r;
bcbca829 1559
1c4baffc 1560 r = sd_netlink_message_request_dump(req, true);
1346b1f0
TG		 1561 if (r < 0)
1562 return r;
1563
1c4baffc 1564 r = sd_netlink_call(m->rtnl, req, 0, &reply);
5fae368b
TG		 1565 if (r < 0)
1566 return r;
1567
1c4baffc 1568 for (addr = reply; addr; addr = sd_netlink_message_next(addr)) {
5fae368b
TG		 1569 int k;
1570
6a24f148
TG		 1571 m->enumerating = true;
1572
200a0868 1573 k = manager_rtnl_process_address(m->rtnl, addr, m);
5fae368b
TG		 1574 if (k < 0)
1575 r = k;
6a24f148
TG		 1576
1577 m->enumerating = false;
5fae368b
TG		 1578 }
1579
1580 return r;
1346b1f0
TG		 1581}
1582
1c8e710c 1583int manager_rtnl_enumerate_routes(Manager *m) {
4afd3348 1584 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1c8e710c
TG		 1585 sd_netlink_message *route;
1586 int r;
1587
1588 assert(m);
1589 assert(m->rtnl);
1590
1591 r = sd_rtnl_message_new_route(m->rtnl, &req, RTM_GETROUTE, 0, 0);
1592 if (r < 0)
1593 return r;
1594
1595 r = sd_netlink_message_request_dump(req, true);
1596 if (r < 0)
1597 return r;
1598
1599 r = sd_netlink_call(m->rtnl, req, 0, &reply);
1600 if (r < 0)
1601 return r;
1602
1603 for (route = reply; route; route = sd_netlink_message_next(route)) {
1604 int k;
1605
1606 m->enumerating = true;
1607
1608 k = manager_rtnl_process_route(m->rtnl, route, m);
1609 if (k < 0)
1610 r = k;
1611
1612 m->enumerating = false;
1613 }
1614
1615 return r;
1616}
1617
bce67bbe
SS		 1618int manager_rtnl_enumerate_rules(Manager *m) {
1619 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1620 sd_netlink_message *rule;
1621 int r;
1622
1623 assert(m);
1624 assert(m->rtnl);
1625
1626 r = sd_rtnl_message_new_routing_policy_rule(m->rtnl, &req, RTM_GETRULE, 0);
1627 if (r < 0)
1628 return r;
1629
1630 r = sd_netlink_message_request_dump(req, true);
1631 if (r < 0)
1632 return r;
1633
1634 r = sd_netlink_call(m->rtnl, req, 0, &reply);
6acbbdd4
SS		 1635 if (r < 0) {
1636 if (r == -EOPNOTSUPP) {
1637 log_debug("FIB Rules are not supported by the kernel. Ignoring.");
1638 return 0;
1639 }
1640
bce67bbe 1641 return r;
6acbbdd4 1642 }
bce67bbe
SS		 1643
1644 for (rule = reply; rule; rule = sd_netlink_message_next(rule)) {
1645 int k;
1646
1647 m->enumerating = true;
1648
1649 k = manager_rtnl_process_rule(m->rtnl, rule, m);
1650 if (k < 0)
1651 r = k;
1652
1653 m->enumerating = false;
1654 }
1655
1656 return r;
1657}
1658
0dd25fb9 1659int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found) {
11bf3cce
LP		 1660 AddressPool *p;
1661 int r;
1662
1663 assert(m);
1664 assert(prefixlen > 0);
1665 assert(found);
1666
1667 LIST_FOREACH(address_pools, p, m->address_pools) {
1668 if (p->family != family)
1669 continue;
1670
1671 r = address_pool_acquire(p, prefixlen, found);
1672 if (r != 0)
1673 return r;
1674 }
1675
1676 return 0;
1677}
4f5f911e
LP		 1678
1679Link* manager_find_uplink(Manager *m, Link *exclude) {
1680 _cleanup_free_ struct local_address *gateways = NULL;
1681 int n, i;
1682
1683 assert(m);
1684
1685 /* Looks for a suitable "uplink", via black magic: an
1686 * interface that is up and where the default route with the
1687 * highest priority points to. */
1688
1689 n = local_gateways(m->rtnl, 0, AF_UNSPEC, &gateways);
1690 if (n < 0) {
1691 log_warning_errno(n, "Failed to determine list of default gateways: %m");
1692 return NULL;
1693 }
1694
1695 for (i = 0; i < n; i++) {
1696 Link *link;
1697
1698 link = hashmap_get(m->links, INT_TO_PTR(gateways[i].ifindex));
1699 if (!link) {
c2c940bd 1700 log_debug("Weird, found a gateway for a link we don't know. Ignoring.");
4f5f911e
LP		 1701 continue;
1702 }
1703
1704 if (link == exclude)
1705 continue;
1706
1707 if (link->operstate < LINK_OPERSTATE_ROUTABLE)
1708 continue;
1709
1710 return link;
1711 }
1712
1713 return NULL;
1714}
84de38c5
TG		 1715
1716void manager_dirty(Manager *manager) {
1717 assert(manager);
1718
1719 /* the serialized state in /run is no longer up-to-date */
1720 manager->dirty = true;
1721}
59eb33e0
MP		 1722
1723static int set_hostname_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
1724 Manager *manager = userdata;
1725 const sd_bus_error *e;
1726
1727 assert(m);
1728 assert(manager);
1729
1730 e = sd_bus_message_get_error(m);
1731 if (e)
1732 log_warning_errno(sd_bus_error_get_errno(e), "Could not set hostname: %s", e->message);
1733
1734 return 1;
1735}
1736
1737int manager_set_hostname(Manager *m, const char *hostname) {
1738 int r;
1739
1740 log_debug("Setting transient hostname: '%s'", strna(hostname));
d7afd945 1741
7901cea1
MP		 1742 if (free_and_strdup(&m->dynamic_hostname, hostname) < 0)
1743 return log_oom();
59eb33e0 1744
d7afd945 1745 if (!m->bus || sd_bus_is_ready(m->bus) <= 0) {
e0d95f03 1746 log_debug("Not connected to system bus, setting hostname later.");
59eb33e0
MP		 1747 return 0;
1748 }
1749
1750 r = sd_bus_call_method_async(
1751 m->bus,
1752 NULL,
1753 "org.freedesktop.hostname1",
1754 "/org/freedesktop/hostname1",
1755 "org.freedesktop.hostname1",
1756 "SetHostname",
1757 set_hostname_handler,
1758 m,
1759 "sb",
1760 hostname,
1761 false);
1762
1763 if (r < 0)
1764 return log_error_errno(r, "Could not set transient hostname: %m");
1765
1766 return 0;
1767}
1768
1769static int set_timezone_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
1770 Manager *manager = userdata;
1771 const sd_bus_error *e;
1772
1773 assert(m);
1774 assert(manager);
1775
1776 e = sd_bus_message_get_error(m);
1777 if (e)
1778 log_warning_errno(sd_bus_error_get_errno(e), "Could not set timezone: %s", e->message);
1779
1780 return 1;
1781}
1782
1783int manager_set_timezone(Manager *m, const char *tz) {
1784 int r;
1785
1786 assert(m);
1787 assert(tz);
1788
1789 log_debug("Setting system timezone: '%s'", tz);
7901cea1
MP		 1790 if (free_and_strdup(&m->dynamic_timezone, tz) < 0)
1791 return log_oom();
59eb33e0 1792
d7afd945 1793 if (!m->bus || sd_bus_is_ready(m->bus) <= 0) {
e0d95f03 1794 log_debug("Not connected to system bus, setting timezone later.");
59eb33e0
MP		 1795 return 0;
1796 }
1797
1798 r = sd_bus_call_method_async(
1799 m->bus,
1800 NULL,
1801 "org.freedesktop.timedate1",
1802 "/org/freedesktop/timedate1",
1803 "org.freedesktop.timedate1",
1804 "SetTimezone",
1805 set_timezone_handler,
1806 m,
1807 "sb",
1808 tz,
1809 false);
1810 if (r < 0)
1811 return log_error_errno(r, "Could not set timezone: %m");
1812
1813 return 0;
1814}
27dfc982
YW		 1815
1816int manager_request_product_uuid(Manager *m, Link *link) {
1817 int r;
1818
1819 assert(m);
1820
1821 if (m->has_product_uuid)
1822 return 0;
1823
1824 log_debug("Requesting product UUID");
1825
1826 if (link) {
1827 DUID *duid;
1828
1829 assert_se(duid = link_get_duid(link));
1830
1831 r = set_ensure_allocated(&m->links_requesting_uuid, NULL);
1832 if (r < 0)
1833 return log_oom();
1834
1835 r = set_ensure_allocated(&m->duids_requesting_uuid, NULL);
1836 if (r < 0)
1837 return log_oom();
1838
1839 r = set_put(m->links_requesting_uuid, link);
1840 if (r < 0)
1841 return log_oom();
1842
1843 r = set_put(m->duids_requesting_uuid, duid);
1844 if (r < 0)
1845 return log_oom();
1846 }
1847
1848 if (!m->bus || sd_bus_is_ready(m->bus) <= 0) {
1849 log_debug("Not connected to system bus, requesting product UUID later.");
1850 return 0;
1851 }
1852
1853 r = sd_bus_call_method_async(
1854 m->bus,
1855 NULL,
1856 "org.freedesktop.hostname1",
1857 "/org/freedesktop/hostname1",
1858 "org.freedesktop.hostname1",
1859 "GetProductUUID",
1860 get_product_uuid_handler,
1861 m,
1862 "b",
1863 false);
1864 if (r < 0)
1865 return log_warning_errno(r, "Failed to get product UUID: %m");
1866
1867 return 0;
1868}
Unnamed repository; edit this file 'description' to name the repository.