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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
f579559b | 2 | |
9aa5d8ba | 3 | #include <netinet/in.h> |
091a364c | 4 | #include <sys/socket.h> |
9aa5d8ba | 5 | #include <unistd.h> |
bbf7c048 | 6 | #include <linux/if.h> |
bce67bbe | 7 | #include <linux/fib_rules.h> |
c16c7808 | 8 | #include <linux/nexthop.h> |
3bef724f | 9 | |
fc2f9534 | 10 | #include "sd-daemon.h" |
07630cea | 11 | #include "sd-netlink.h" |
fc2f9534 | 12 | |
b5efdb8a | 13 | #include "alloc-util.h" |
ac9f55ed | 14 | #include "bus-log-control-api.h" |
269e4d2d | 15 | #include "bus-polkit.h" |
a97dcc12 | 16 | #include "bus-util.h" |
07630cea | 17 | #include "conf-parser.h" |
a97dcc12 | 18 | #include "def.h" |
a7f95575 | 19 | #include "device-private.h" |
21486d9e | 20 | #include "device-util.h" |
482d1aeb | 21 | #include "dns-domain.h" |
3ffd4af2 | 22 | #include "fd-util.h" |
0d39fa9c | 23 | #include "fileio.h" |
4f5f911e | 24 | #include "local-addresses.h" |
07630cea | 25 | #include "netlink-util.h" |
dc0d4078 | 26 | #include "network-internal.h" |
cf72a786 | 27 | #include "networkd-dhcp-server-bus.h" |
ca5ad760 | 28 | #include "networkd-dhcp6.h" |
6a1af3d4 | 29 | #include "networkd-link-bus.h" |
79a59fa5 | 30 | #include "networkd-manager-bus.h" |
23f53b99 | 31 | #include "networkd-manager.h" |
ceac2c2b | 32 | #include "networkd-network-bus.h" |
a879e1a4 | 33 | #include "networkd-speed-meter.h" |
00616955 | 34 | #include "ordered-set.h" |
b0c82192 | 35 | #include "path-lookup.h" |
07630cea LP |
36 | #include "path-util.h" |
37 | #include "set.h" | |
ab76be55 | 38 | #include "signal-util.h" |
21486d9e | 39 | #include "strv.h" |
4b600505 | 40 | #include "sysctl-util.h" |
e4de7287 | 41 | #include "tmpfile-util.h" |
299ad32d | 42 | #include "udev-util.h" |
07630cea | 43 | #include "virt.h" |
505f8da7 | 44 | |
48d0248e YW |
45 | /* use 128 MB for receive socket kernel queue. */ |
46 | #define RCVBUF_SIZE (128*1024*1024) | |
be660c37 | 47 | |
5ecb131d YW |
48 | static int log_message_warning_errno(sd_netlink_message *m, int err, const char *msg) { |
49 | const char *err_msg = NULL; | |
50 | ||
51 | (void) sd_netlink_message_read_string(m, NLMSGERR_ATTR_MSG, &err_msg); | |
52 | return log_warning_errno(err, "%s: %s%s%m", msg, strempty(err_msg), err_msg ? " " : ""); | |
53 | } | |
54 | ||
11bf3cce LP |
55 | static int setup_default_address_pool(Manager *m) { |
56 | AddressPool *p; | |
57 | int r; | |
58 | ||
59 | assert(m); | |
60 | ||
61 | /* Add in the well-known private address ranges. */ | |
62 | ||
f2efbeaf | 63 | r = address_pool_new_from_string(m, &p, AF_INET6, "fd00::", 8); |
11bf3cce LP |
64 | if (r < 0) |
65 | return r; | |
66 | ||
b085cd37 | 67 | r = address_pool_new_from_string(m, &p, AF_INET, "10.0.0.0", 8); |
11bf3cce LP |
68 | if (r < 0) |
69 | return r; | |
70 | ||
71 | r = address_pool_new_from_string(m, &p, AF_INET, "172.16.0.0", 12); | |
72 | if (r < 0) | |
73 | return r; | |
74 | ||
b085cd37 | 75 | r = address_pool_new_from_string(m, &p, AF_INET, "192.168.0.0", 16); |
11bf3cce LP |
76 | if (r < 0) |
77 | return r; | |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
9c0a72f9 TG |
82 | static int manager_reset_all(Manager *m) { |
83 | Link *link; | |
84 | Iterator i; | |
85 | int r; | |
86 | ||
87 | assert(m); | |
88 | ||
89 | HASHMAP_FOREACH(link, m->links, i) { | |
90 | r = link_carrier_reset(link); | |
91 | if (r < 0) | |
2f3cf1f9 | 92 | log_link_warning_errno(link, r, "Could not reset carrier: %m"); |
9c0a72f9 TG |
93 | } |
94 | ||
95 | return 0; | |
96 | } | |
97 | ||
19070062 | 98 | static int match_prepare_for_sleep(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) { |
9c0a72f9 TG |
99 | Manager *m = userdata; |
100 | int b, r; | |
101 | ||
19070062 | 102 | assert(message); |
d7afd945 | 103 | assert(m); |
9c0a72f9 TG |
104 | |
105 | r = sd_bus_message_read(message, "b", &b); | |
106 | if (r < 0) { | |
d67b1d18 | 107 | bus_log_parse_error(r); |
9c0a72f9 TG |
108 | return 0; |
109 | } | |
110 | ||
111 | if (b) | |
112 | return 0; | |
113 | ||
114 | log_debug("Coming back from suspend, resetting all connections..."); | |
115 | ||
e1694a75 | 116 | (void) manager_reset_all(m); |
9c0a72f9 TG |
117 | |
118 | return 0; | |
119 | } | |
120 | ||
d7afd945 LP |
121 | static int on_connected(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) { |
122 | Manager *m = userdata; | |
9c0a72f9 | 123 | |
d7afd945 | 124 | assert(message); |
9c0a72f9 TG |
125 | assert(m); |
126 | ||
d7afd945 LP |
127 | /* Did we get a timezone or transient hostname from DHCP while D-Bus wasn't up yet? */ |
128 | if (m->dynamic_hostname) | |
129 | (void) manager_set_hostname(m, m->dynamic_hostname); | |
130 | if (m->dynamic_timezone) | |
131 | (void) manager_set_timezone(m, m->dynamic_timezone); | |
27dfc982 YW |
132 | if (m->links_requesting_uuid) |
133 | (void) manager_request_product_uuid(m, NULL); | |
9c0a72f9 | 134 | |
d7afd945 LP |
135 | return 0; |
136 | } | |
9c0a72f9 | 137 | |
d7afd945 LP |
138 | int manager_connect_bus(Manager *m) { |
139 | int r; | |
140 | ||
141 | assert(m); | |
9c0a72f9 | 142 | |
d7afd945 | 143 | if (m->bus) |
9c0a72f9 | 144 | return 0; |
7d6884b6 | 145 | |
621e4509 | 146 | r = bus_open_system_watch_bind_with_description(&m->bus, "bus-api-network"); |
9c0a72f9 | 147 | if (r < 0) |
d7afd945 | 148 | return log_error_errno(r, "Failed to connect to bus: %m"); |
9c0a72f9 | 149 | |
e331e246 TG |
150 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/network1", "org.freedesktop.network1.Manager", manager_vtable, m); |
151 | if (r < 0) | |
152 | return log_error_errno(r, "Failed to add manager object vtable: %m"); | |
153 | ||
154 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/link", "org.freedesktop.network1.Link", link_vtable, link_object_find, m); | |
155 | if (r < 0) | |
156 | return log_error_errno(r, "Failed to add link object vtable: %m"); | |
157 | ||
cf72a786 MAL |
158 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/link", "org.freedesktop.network1.DHCPServer", dhcp_server_vtable, link_object_find, m); |
159 | if (r < 0) | |
160 | return log_error_errno(r, "Failed to add link object vtable: %m"); | |
161 | ||
e331e246 TG |
162 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/network1/link", link_node_enumerator, m); |
163 | if (r < 0) | |
164 | return log_error_errno(r, "Failed to add link enumerator: %m"); | |
3175fcde TG |
165 | |
166 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/network", "org.freedesktop.network1.Network", network_vtable, network_object_find, m); | |
167 | if (r < 0) | |
168 | return log_error_errno(r, "Failed to add network object vtable: %m"); | |
169 | ||
170 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/network1/network", network_node_enumerator, m); | |
171 | if (r < 0) | |
172 | return log_error_errno(r, "Failed to add network enumerator: %m"); | |
e331e246 | 173 | |
ac9f55ed LP |
174 | r = bus_log_control_api_register(m->bus); |
175 | if (r < 0) | |
176 | return r; | |
177 | ||
696fc836 | 178 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.network1", 0, NULL, NULL); |
e331e246 | 179 | if (r < 0) |
0c0b9306 | 180 | return log_error_errno(r, "Failed to request name: %m"); |
e331e246 TG |
181 | |
182 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
183 | if (r < 0) | |
184 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
185 | ||
d7afd945 LP |
186 | r = sd_bus_match_signal_async( |
187 | m->bus, | |
cad43595 | 188 | NULL, |
d7afd945 LP |
189 | "org.freedesktop.DBus.Local", |
190 | NULL, | |
191 | "org.freedesktop.DBus.Local", | |
192 | "Connected", | |
193 | on_connected, NULL, m); | |
194 | if (r < 0) | |
195 | return log_error_errno(r, "Failed to request match on Connected signal: %m"); | |
196 | ||
197 | r = sd_bus_match_signal_async( | |
198 | m->bus, | |
cad43595 | 199 | NULL, |
d7afd945 LP |
200 | "org.freedesktop.login1", |
201 | "/org/freedesktop/login1", | |
202 | "org.freedesktop.login1.Manager", | |
203 | "PrepareForSleep", | |
204 | match_prepare_for_sleep, NULL, m); | |
205 | if (r < 0) | |
206 | log_warning_errno(r, "Failed to request match for PrepareForSleep, ignoring: %m"); | |
7901cea1 | 207 | |
9c0a72f9 TG |
208 | return 0; |
209 | } | |
210 | ||
d2ebf952 YW |
211 | static int manager_udev_process_link(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
212 | Manager *m = userdata; | |
a7f95575 | 213 | DeviceAction action; |
5fae368b TG |
214 | Link *link = NULL; |
215 | int r, ifindex; | |
5544ee85 | 216 | |
5fae368b TG |
217 | assert(m); |
218 | assert(device); | |
5544ee85 | 219 | |
a7f95575 | 220 | r = device_get_action(device, &action); |
21486d9e | 221 | if (r < 0) { |
a7f95575 | 222 | log_device_debug_errno(device, r, "Failed to get udev action, ignoring device: %m"); |
5fae368b | 223 | return 0; |
21486d9e YW |
224 | } |
225 | ||
a7f95575 YW |
226 | if (!IN_SET(action, DEVICE_ACTION_ADD, DEVICE_ACTION_CHANGE, DEVICE_ACTION_MOVE)) { |
227 | log_device_debug(device, "Ignoring udev %s event for device.", device_action_to_string(action)); | |
21486d9e YW |
228 | return 0; |
229 | } | |
5544ee85 | 230 | |
51517f9e | 231 | r = sd_device_get_ifindex(device, &ifindex); |
7606377e | 232 | if (r < 0) { |
21486d9e | 233 | log_device_debug_errno(device, r, "Ignoring udev ADD event for device without ifindex or with invalid ifindex: %m"); |
5fae368b | 234 | return 0; |
5544ee85 TG |
235 | } |
236 | ||
299ad32d YW |
237 | r = device_is_renaming(device); |
238 | if (r < 0) { | |
a7f95575 YW |
239 | log_device_error_errno(device, r, "Failed to determine the device is renamed or not, ignoring '%s' uevent: %m", |
240 | device_action_to_string(action)); | |
299ad32d YW |
241 | return 0; |
242 | } | |
243 | if (r > 0) { | |
244 | log_device_debug(device, "Interface is under renaming, wait for the interface to be renamed: %m"); | |
245 | return 0; | |
246 | } | |
247 | ||
5fae368b | 248 | r = link_get(m, ifindex, &link); |
d2ebf952 YW |
249 | if (r < 0) { |
250 | if (r != -ENODEV) | |
251 | log_debug_errno(r, "Failed to get link from ifindex %i, ignoring: %m", ifindex); | |
5fae368b | 252 | return 0; |
d2ebf952 | 253 | } |
02b59d57 | 254 | |
d2ebf952 | 255 | (void) link_initialized(link, device); |
e1694a75 | 256 | |
f579559b TG |
257 | return 0; |
258 | } | |
259 | ||
5fae368b TG |
260 | static int manager_connect_udev(Manager *m) { |
261 | int r; | |
f579559b | 262 | |
5fae368b TG |
263 | /* udev does not initialize devices inside containers, |
264 | * so we rely on them being already initialized before | |
265 | * entering the container */ | |
75f86906 | 266 | if (detect_container() > 0) |
5fae368b | 267 | return 0; |
f579559b | 268 | |
d2ebf952 | 269 | r = sd_device_monitor_new(&m->device_monitor); |
02b59d57 | 270 | if (r < 0) |
d2ebf952 | 271 | return log_error_errno(r, "Failed to initialize device monitor: %m"); |
02b59d57 | 272 | |
d2ebf952 YW |
273 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "net", NULL); |
274 | if (r < 0) | |
275 | return log_error_errno(r, "Could not add device monitor filter: %m"); | |
505f8da7 | 276 | |
deb2b734 | 277 | r = sd_device_monitor_attach_event(m->device_monitor, m->event); |
5fae368b | 278 | if (r < 0) |
d2ebf952 | 279 | return log_error_errno(r, "Failed to attach event to device monitor: %m"); |
505f8da7 | 280 | |
deb2b734 | 281 | r = sd_device_monitor_start(m->device_monitor, manager_udev_process_link, m); |
505f8da7 | 282 | if (r < 0) |
d2ebf952 | 283 | return log_error_errno(r, "Failed to start device monitor: %m"); |
11a7f229 | 284 | |
505f8da7 TG |
285 | return 0; |
286 | } | |
f579559b | 287 | |
1c8e710c | 288 | int manager_rtnl_process_route(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) { |
f1368755 YW |
289 | _cleanup_(route_freep) Route *tmp = NULL; |
290 | Route *route = NULL; | |
1c8e710c TG |
291 | Manager *m = userdata; |
292 | Link *link = NULL; | |
f1368755 | 293 | uint32_t ifindex; |
1c8e710c | 294 | uint16_t type; |
f1368755 | 295 | unsigned char table; |
1c8e710c TG |
296 | int r; |
297 | ||
298 | assert(rtnl); | |
299 | assert(message); | |
300 | assert(m); | |
301 | ||
302 | if (sd_netlink_message_is_error(message)) { | |
303 | r = sd_netlink_message_get_errno(message); | |
304 | if (r < 0) | |
5ecb131d | 305 | log_message_warning_errno(message, r, "rtnl: failed to receive route message, ignoring"); |
1c8e710c TG |
306 | |
307 | return 0; | |
308 | } | |
309 | ||
310 | r = sd_netlink_message_get_type(message, &type); | |
311 | if (r < 0) { | |
e1694a75 | 312 | log_warning_errno(r, "rtnl: could not get message type, ignoring: %m"); |
1c8e710c | 313 | return 0; |
25a1bffc | 314 | } else if (!IN_SET(type, RTM_NEWROUTE, RTM_DELROUTE)) { |
7f474ed7 | 315 | log_warning("rtnl: received unexpected message type %u when processing route, ignoring.", type); |
1c8e710c TG |
316 | return 0; |
317 | } | |
318 | ||
319 | r = sd_netlink_message_read_u32(message, RTA_OIF, &ifindex); | |
320 | if (r == -ENODATA) { | |
39f26098 | 321 | log_debug("rtnl: received route message without ifindex, ignoring"); |
1c8e710c TG |
322 | return 0; |
323 | } else if (r < 0) { | |
7f474ed7 | 324 | log_warning_errno(r, "rtnl: could not get ifindex from route message, ignoring: %m"); |
1c8e710c TG |
325 | return 0; |
326 | } else if (ifindex <= 0) { | |
7f474ed7 YW |
327 | log_warning("rtnl: received route message with invalid ifindex %d, ignoring.", ifindex); |
328 | return 0; | |
329 | } | |
330 | ||
331 | r = link_get(m, ifindex, &link); | |
332 | if (r < 0 || !link) { | |
333 | /* when enumerating we might be out of sync, but we will | |
334 | * get the route again, so just ignore it */ | |
335 | if (!m->enumerating) | |
39f26098 | 336 | log_warning("rtnl: received route message for link (%d) we do not know about, ignoring", ifindex); |
7f474ed7 | 337 | return 0; |
1c8e710c TG |
338 | } |
339 | ||
f1368755 YW |
340 | r = route_new(&tmp); |
341 | if (r < 0) | |
342 | return log_oom(); | |
343 | ||
344 | r = sd_rtnl_message_route_get_family(message, &tmp->family); | |
509b06ff YW |
345 | if (r < 0) { |
346 | log_link_warning(link, "rtnl: received route message without family, ignoring"); | |
347 | return 0; | |
348 | } else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) { | |
349 | log_link_debug(link, "rtnl: received route message with invalid family '%i', ignoring", tmp->family); | |
1c8e710c TG |
350 | return 0; |
351 | } | |
352 | ||
f1368755 | 353 | r = sd_rtnl_message_route_get_protocol(message, &tmp->protocol); |
1c8e710c | 354 | if (r < 0) { |
509b06ff | 355 | log_warning_errno(r, "rtnl: received route message without route protocol: %m"); |
1c8e710c TG |
356 | return 0; |
357 | } | |
358 | ||
f1368755 | 359 | switch (tmp->family) { |
1c8e710c | 360 | case AF_INET: |
f1368755 | 361 | r = sd_netlink_message_read_in_addr(message, RTA_DST, &tmp->dst.in); |
1c8e710c | 362 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 363 | log_link_warning_errno(link, r, "rtnl: received route message without valid destination, ignoring: %m"); |
1c8e710c TG |
364 | return 0; |
365 | } | |
366 | ||
f1368755 | 367 | r = sd_netlink_message_read_in_addr(message, RTA_GATEWAY, &tmp->gw.in); |
1c8e710c | 368 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 369 | log_link_warning_errno(link, r, "rtnl: received route message without valid gateway, ignoring: %m"); |
1c8e710c TG |
370 | return 0; |
371 | } | |
372 | ||
f1368755 | 373 | r = sd_netlink_message_read_in_addr(message, RTA_SRC, &tmp->src.in); |
1c8e710c | 374 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 375 | log_link_warning_errno(link, r, "rtnl: received route message without valid source, ignoring: %m"); |
1c8e710c TG |
376 | return 0; |
377 | } | |
378 | ||
f1368755 | 379 | r = sd_netlink_message_read_in_addr(message, RTA_PREFSRC, &tmp->prefsrc.in); |
1c8e710c | 380 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 381 | log_link_warning_errno(link, r, "rtnl: received route message without valid preferred source, ignoring: %m"); |
1c8e710c TG |
382 | return 0; |
383 | } | |
384 | ||
385 | break; | |
386 | ||
387 | case AF_INET6: | |
f1368755 | 388 | r = sd_netlink_message_read_in6_addr(message, RTA_DST, &tmp->dst.in6); |
1c8e710c | 389 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 390 | log_link_warning_errno(link, r, "rtnl: received route message without valid destination, ignoring: %m"); |
1c8e710c TG |
391 | return 0; |
392 | } | |
393 | ||
f1368755 | 394 | r = sd_netlink_message_read_in6_addr(message, RTA_GATEWAY, &tmp->gw.in6); |
1c8e710c | 395 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 396 | log_link_warning_errno(link, r, "rtnl: received route message without valid gateway, ignoring: %m"); |
1c8e710c TG |
397 | return 0; |
398 | } | |
399 | ||
f1368755 | 400 | r = sd_netlink_message_read_in6_addr(message, RTA_SRC, &tmp->src.in6); |
1c8e710c | 401 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 402 | log_link_warning_errno(link, r, "rtnl: received route message without valid source, ignoring: %m"); |
1c8e710c TG |
403 | return 0; |
404 | } | |
405 | ||
f1368755 | 406 | r = sd_netlink_message_read_in6_addr(message, RTA_PREFSRC, &tmp->prefsrc.in6); |
1c8e710c | 407 | if (r < 0 && r != -ENODATA) { |
7f474ed7 | 408 | log_link_warning_errno(link, r, "rtnl: received route message without valid preferred source, ignoring: %m"); |
1c8e710c TG |
409 | return 0; |
410 | } | |
411 | ||
412 | break; | |
413 | ||
414 | default: | |
7f474ed7 | 415 | assert_not_reached("Received route message with unsupported address family"); |
1c8e710c TG |
416 | return 0; |
417 | } | |
418 | ||
f1368755 | 419 | r = sd_rtnl_message_route_get_dst_prefixlen(message, &tmp->dst_prefixlen); |
1c8e710c | 420 | if (r < 0) { |
39f26098 | 421 | log_link_warning_errno(link, r, "rtnl: received route message with invalid destination prefixlen, ignoring: %m"); |
1c8e710c TG |
422 | return 0; |
423 | } | |
424 | ||
f1368755 | 425 | r = sd_rtnl_message_route_get_src_prefixlen(message, &tmp->src_prefixlen); |
1c8e710c | 426 | if (r < 0) { |
39f26098 | 427 | log_link_warning_errno(link, r, "rtnl: received route message with invalid source prefixlen, ignoring: %m"); |
1c8e710c TG |
428 | return 0; |
429 | } | |
430 | ||
f1368755 | 431 | r = sd_rtnl_message_route_get_scope(message, &tmp->scope); |
1c8e710c | 432 | if (r < 0) { |
39f26098 | 433 | log_link_warning_errno(link, r, "rtnl: received route message with invalid scope, ignoring: %m"); |
1c8e710c TG |
434 | return 0; |
435 | } | |
436 | ||
f1368755 | 437 | r = sd_rtnl_message_route_get_tos(message, &tmp->tos); |
1c8e710c | 438 | if (r < 0) { |
39f26098 | 439 | log_link_warning_errno(link, r, "rtnl: received route message with invalid tos, ignoring: %m"); |
1c8e710c TG |
440 | return 0; |
441 | } | |
442 | ||
f1368755 | 443 | r = sd_rtnl_message_route_get_type(message, &tmp->type); |
983226f3 | 444 | if (r < 0) { |
39f26098 | 445 | log_link_warning_errno(link, r, "rtnl: received route message with invalid type, ignoring: %m"); |
983226f3 SS |
446 | return 0; |
447 | } | |
448 | ||
1c8e710c TG |
449 | r = sd_rtnl_message_route_get_table(message, &table); |
450 | if (r < 0) { | |
39f26098 | 451 | log_link_warning_errno(link, r, "rtnl: received route message with invalid table, ignoring: %m"); |
1c8e710c TG |
452 | return 0; |
453 | } | |
f1368755 | 454 | tmp->table = table; |
1c8e710c | 455 | |
f1368755 | 456 | r = sd_netlink_message_read_u32(message, RTA_PRIORITY, &tmp->priority); |
1c8e710c | 457 | if (r < 0 && r != -ENODATA) { |
39f26098 | 458 | log_link_warning_errno(link, r, "rtnl: received route message with invalid priority, ignoring: %m"); |
1c8e710c TG |
459 | return 0; |
460 | } | |
461 | ||
fa3e401a YW |
462 | r = sd_netlink_message_enter_container(message, RTA_METRICS); |
463 | if (r < 0 && r != -ENODATA) { | |
464 | log_link_error_errno(link, r, "rtnl: Could not enter RTA_METRICS container: %m"); | |
465 | return 0; | |
466 | } | |
467 | if (r >= 0) { | |
468 | r = sd_netlink_message_read_u32(message, RTAX_INITCWND, &tmp->initcwnd); | |
469 | if (r < 0 && r != -ENODATA) { | |
470 | log_link_warning_errno(link, r, "rtnl: received route message with invalid initcwnd, ignoring: %m"); | |
471 | return 0; | |
472 | } | |
473 | ||
474 | r = sd_netlink_message_read_u32(message, RTAX_INITRWND, &tmp->initrwnd); | |
475 | if (r < 0 && r != -ENODATA) { | |
476 | log_link_warning_errno(link, r, "rtnl: received route message with invalid initrwnd, ignoring: %m"); | |
477 | return 0; | |
478 | } | |
479 | ||
480 | r = sd_netlink_message_exit_container(message); | |
481 | if (r < 0) { | |
482 | log_link_error_errno(link, r, "rtnl: Could not exit from RTA_METRICS container: %m"); | |
483 | return 0; | |
484 | } | |
485 | } | |
486 | ||
f1368755 | 487 | (void) route_get(link, tmp, &route); |
1c8e710c | 488 | |
156ed65e YW |
489 | if (DEBUG_LOGGING) { |
490 | _cleanup_free_ char *buf_dst = NULL, *buf_dst_prefixlen = NULL, | |
491 | *buf_src = NULL, *buf_gw = NULL, *buf_prefsrc = NULL; | |
d3e291fd YW |
492 | char buf_scope[ROUTE_SCOPE_STR_MAX], buf_table[ROUTE_TABLE_STR_MAX], |
493 | buf_protocol[ROUTE_PROTOCOL_STR_MAX]; | |
156ed65e | 494 | |
f1368755 YW |
495 | if (!in_addr_is_null(tmp->family, &tmp->dst)) { |
496 | (void) in_addr_to_string(tmp->family, &tmp->dst, &buf_dst); | |
497 | (void) asprintf(&buf_dst_prefixlen, "/%u", tmp->dst_prefixlen); | |
156ed65e | 498 | } |
f1368755 YW |
499 | if (!in_addr_is_null(tmp->family, &tmp->src)) |
500 | (void) in_addr_to_string(tmp->family, &tmp->src, &buf_src); | |
501 | if (!in_addr_is_null(tmp->family, &tmp->gw)) | |
502 | (void) in_addr_to_string(tmp->family, &tmp->gw, &buf_gw); | |
503 | if (!in_addr_is_null(tmp->family, &tmp->prefsrc)) | |
504 | (void) in_addr_to_string(tmp->family, &tmp->prefsrc, &buf_prefsrc); | |
156ed65e YW |
505 | |
506 | log_link_debug(link, | |
d3e291fd | 507 | "%s route: dst: %s%s, src: %s, gw: %s, prefsrc: %s, scope: %s, table: %s, proto: %s, type: %s", |
5d3b8017 SS |
508 | (!route && !link->manager->manage_foreign_routes) || type == RTM_DELROUTE ? "Forgetting" : |
509 | route ? "Received remembered" : "Remembering", | |
156ed65e | 510 | strna(buf_dst), strempty(buf_dst_prefixlen), |
b297e0a7 | 511 | strna(buf_src), strna(buf_gw), strna(buf_prefsrc), |
f1368755 YW |
512 | format_route_scope(tmp->scope, buf_scope, sizeof buf_scope), |
513 | format_route_table(tmp->table, buf_table, sizeof buf_table), | |
514 | format_route_protocol(tmp->protocol, buf_protocol, sizeof buf_protocol), | |
515 | strna(route_type_to_string(tmp->type))); | |
156ed65e YW |
516 | } |
517 | ||
1c8e710c TG |
518 | switch (type) { |
519 | case RTM_NEWROUTE: | |
5d3b8017 | 520 | if (!route && link->manager->manage_foreign_routes) { |
1c8e710c | 521 | /* A route appeared that we did not request */ |
f1368755 | 522 | r = route_add_foreign(link, tmp, &route); |
e1694a75 | 523 | if (r < 0) { |
7f474ed7 | 524 | log_link_warning_errno(link, r, "Failed to remember foreign route, ignoring: %m"); |
1c8e710c | 525 | return 0; |
e1694a75 | 526 | } |
1c8e710c TG |
527 | } |
528 | ||
1c8e710c TG |
529 | break; |
530 | ||
531 | case RTM_DELROUTE: | |
b9642f41 | 532 | route_free(route); |
1c8e710c | 533 | break; |
b9642f41 | 534 | |
1c8e710c | 535 | default: |
7f474ed7 | 536 | assert_not_reached("Received route message with invalid RTNL message type"); |
1c8e710c TG |
537 | } |
538 | ||
539 | return 1; | |
540 | } | |
541 | ||
d1bdafd2 WKI |
542 | static int manager_rtnl_process_neighbor_lladdr(sd_netlink_message *message, union lladdr_union *lladdr, size_t *size, char **str) { |
543 | int r; | |
544 | ||
545 | assert(message); | |
546 | assert(lladdr); | |
547 | assert(size); | |
548 | assert(str); | |
549 | ||
550 | *str = NULL; | |
551 | ||
552 | r = sd_netlink_message_read(message, NDA_LLADDR, sizeof(lladdr->ip.in6), &lladdr->ip.in6); | |
553 | if (r >= 0) { | |
554 | *size = sizeof(lladdr->ip.in6); | |
555 | if (in_addr_to_string(AF_INET6, &lladdr->ip, str) < 0) | |
556 | log_warning_errno(r, "Could not print lower address: %m"); | |
557 | return r; | |
558 | } | |
559 | ||
560 | r = sd_netlink_message_read(message, NDA_LLADDR, sizeof(lladdr->mac), &lladdr->mac); | |
561 | if (r >= 0) { | |
562 | *size = sizeof(lladdr->mac); | |
563 | *str = new(char, ETHER_ADDR_TO_STRING_MAX); | |
564 | if (!*str) { | |
565 | log_oom(); | |
566 | return r; | |
567 | } | |
568 | ether_addr_to_string(&lladdr->mac, *str); | |
569 | return r; | |
570 | } | |
571 | ||
572 | r = sd_netlink_message_read(message, NDA_LLADDR, sizeof(lladdr->ip.in), &lladdr->ip.in); | |
573 | if (r >= 0) { | |
574 | *size = sizeof(lladdr->ip.in); | |
575 | if (in_addr_to_string(AF_INET, &lladdr->ip, str) < 0) | |
576 | log_warning_errno(r, "Could not print lower address: %m"); | |
577 | return r; | |
578 | } | |
579 | ||
580 | return r; | |
581 | } | |
582 | ||
583 | int manager_rtnl_process_neighbor(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) { | |
584 | Manager *m = userdata; | |
585 | Link *link = NULL; | |
586 | Neighbor *neighbor = NULL; | |
587 | int ifindex, family, r; | |
588 | uint16_t type, state; | |
589 | union in_addr_union in_addr = IN_ADDR_NULL; | |
590 | _cleanup_free_ char *addr_str = NULL; | |
591 | union lladdr_union lladdr; | |
592 | size_t lladdr_size = 0; | |
593 | _cleanup_free_ char *lladdr_str = NULL; | |
594 | ||
595 | assert(rtnl); | |
596 | assert(message); | |
597 | assert(m); | |
598 | ||
599 | if (sd_netlink_message_is_error(message)) { | |
600 | r = sd_netlink_message_get_errno(message); | |
601 | if (r < 0) | |
5ecb131d | 602 | log_message_warning_errno(message, r, "rtnl: failed to receive neighbor message, ignoring"); |
d1bdafd2 WKI |
603 | |
604 | return 0; | |
605 | } | |
606 | ||
607 | r = sd_netlink_message_get_type(message, &type); | |
608 | if (r < 0) { | |
609 | log_warning_errno(r, "rtnl: could not get message type, ignoring: %m"); | |
610 | return 0; | |
611 | } else if (!IN_SET(type, RTM_NEWNEIGH, RTM_DELNEIGH)) { | |
612 | log_warning("rtnl: received unexpected message type %u when processing neighbor, ignoring.", type); | |
613 | return 0; | |
614 | } | |
615 | ||
616 | r = sd_rtnl_message_neigh_get_state(message, &state); | |
617 | if (r < 0) { | |
618 | log_link_warning_errno(link, r, "rtnl: received neighbor message with invalid state, ignoring: %m"); | |
619 | return 0; | |
620 | } else if (!FLAGS_SET(state, NUD_PERMANENT)) { | |
621 | log_debug("rtnl: received non-static neighbor, ignoring."); | |
622 | return 0; | |
623 | } | |
624 | ||
625 | r = sd_rtnl_message_neigh_get_ifindex(message, &ifindex); | |
626 | if (r < 0) { | |
627 | log_warning_errno(r, "rtnl: could not get ifindex from message, ignoring: %m"); | |
628 | return 0; | |
629 | } else if (ifindex <= 0) { | |
630 | log_warning("rtnl: received neighbor message with invalid ifindex %d, ignoring.", ifindex); | |
631 | return 0; | |
632 | } | |
633 | ||
634 | r = link_get(m, ifindex, &link); | |
635 | if (r < 0 || !link) { | |
636 | /* when enumerating we might be out of sync, but we will get the neighbor again, so just | |
637 | * ignore it */ | |
638 | if (!m->enumerating) | |
639 | log_warning("rtnl: received neighbor for link '%d' we don't know about, ignoring.", ifindex); | |
640 | return 0; | |
641 | } | |
642 | ||
643 | r = sd_rtnl_message_neigh_get_family(message, &family); | |
509b06ff | 644 | if (r < 0) { |
7c6d95ea | 645 | log_link_warning(link, "rtnl: received neighbor message without family, ignoring."); |
509b06ff YW |
646 | return 0; |
647 | } else if (!IN_SET(family, AF_INET, AF_INET6)) { | |
648 | log_link_debug(link, "rtnl: received neighbor message with invalid family '%i', ignoring.", family); | |
d1bdafd2 WKI |
649 | return 0; |
650 | } | |
651 | ||
652 | switch (family) { | |
653 | case AF_INET: | |
654 | r = sd_netlink_message_read_in_addr(message, NDA_DST, &in_addr.in); | |
655 | if (r < 0) { | |
656 | log_link_warning_errno(link, r, "rtnl: received neighbor message without valid address, ignoring: %m"); | |
657 | return 0; | |
658 | } | |
659 | ||
660 | break; | |
661 | ||
662 | case AF_INET6: | |
663 | r = sd_netlink_message_read_in6_addr(message, NDA_DST, &in_addr.in6); | |
664 | if (r < 0) { | |
665 | log_link_warning_errno(link, r, "rtnl: received neighbor message without valid address, ignoring: %m"); | |
666 | return 0; | |
667 | } | |
668 | ||
669 | break; | |
670 | ||
671 | default: | |
672 | assert_not_reached("Received unsupported address family"); | |
673 | } | |
674 | ||
675 | if (in_addr_to_string(family, &in_addr, &addr_str) < 0) | |
676 | log_link_warning_errno(link, r, "Could not print address: %m"); | |
677 | ||
678 | r = manager_rtnl_process_neighbor_lladdr(message, &lladdr, &lladdr_size, &lladdr_str); | |
679 | if (r < 0) { | |
680 | log_link_warning_errno(link, r, "rtnl: received neighbor message with invalid lladdr, ignoring: %m"); | |
681 | return 0; | |
682 | } | |
683 | ||
684 | (void) neighbor_get(link, family, &in_addr, &lladdr, lladdr_size, &neighbor); | |
685 | ||
686 | switch (type) { | |
687 | case RTM_NEWNEIGH: | |
688 | if (neighbor) | |
689 | log_link_debug(link, "Remembering neighbor: %s->%s", | |
690 | strnull(addr_str), strnull(lladdr_str)); | |
691 | else { | |
692 | /* A neighbor appeared that we did not request */ | |
693 | r = neighbor_add_foreign(link, family, &in_addr, &lladdr, lladdr_size, &neighbor); | |
694 | if (r < 0) { | |
695 | log_link_warning_errno(link, r, "Failed to remember foreign neighbor %s->%s, ignoring: %m", | |
696 | strnull(addr_str), strnull(lladdr_str)); | |
697 | return 0; | |
698 | } else | |
699 | log_link_debug(link, "Remembering foreign neighbor: %s->%s", | |
700 | strnull(addr_str), strnull(lladdr_str)); | |
701 | } | |
702 | ||
703 | break; | |
704 | ||
705 | case RTM_DELNEIGH: | |
706 | if (neighbor) { | |
707 | log_link_debug(link, "Forgetting neighbor: %s->%s", | |
708 | strnull(addr_str), strnull(lladdr_str)); | |
709 | (void) neighbor_free(neighbor); | |
710 | } else | |
d6246fd4 YW |
711 | log_link_debug(link, "Kernel removed a neighbor we don't remember: %s->%s, ignoring.", |
712 | strnull(addr_str), strnull(lladdr_str)); | |
d1bdafd2 WKI |
713 | |
714 | break; | |
715 | ||
716 | default: | |
717 | assert_not_reached("Received invalid RTNL message type"); | |
718 | } | |
719 | ||
720 | return 1; | |
721 | } | |
722 | ||
200a0868 | 723 | int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) { |
57e44707 | 724 | _cleanup_free_ char *buf = NULL; |
200a0868 TG |
725 | Manager *m = userdata; |
726 | Link *link = NULL; | |
727 | uint16_t type; | |
57e44707 | 728 | unsigned char flags, prefixlen, scope; |
67a46833 | 729 | union in_addr_union in_addr = IN_ADDR_NULL; |
054f0db4 TG |
730 | struct ifa_cacheinfo cinfo; |
731 | Address *address = NULL; | |
57e44707 | 732 | char valid_buf[FORMAT_TIMESPAN_MAX]; |
200a0868 | 733 | const char *valid_str = NULL; |
57e44707 | 734 | int ifindex, family, r; |
200a0868 TG |
735 | |
736 | assert(rtnl); | |
737 | assert(message); | |
738 | assert(m); | |
739 | ||
740 | if (sd_netlink_message_is_error(message)) { | |
741 | r = sd_netlink_message_get_errno(message); | |
742 | if (r < 0) | |
5ecb131d | 743 | log_message_warning_errno(message, r, "rtnl: failed to receive address message, ignoring"); |
200a0868 TG |
744 | |
745 | return 0; | |
746 | } | |
747 | ||
748 | r = sd_netlink_message_get_type(message, &type); | |
749 | if (r < 0) { | |
e1694a75 | 750 | log_warning_errno(r, "rtnl: could not get message type, ignoring: %m"); |
200a0868 | 751 | return 0; |
25a1bffc | 752 | } else if (!IN_SET(type, RTM_NEWADDR, RTM_DELADDR)) { |
7f474ed7 | 753 | log_warning("rtnl: received unexpected message type %u when processing address, ignoring.", type); |
200a0868 TG |
754 | return 0; |
755 | } | |
756 | ||
757 | r = sd_rtnl_message_addr_get_ifindex(message, &ifindex); | |
758 | if (r < 0) { | |
44e891bb | 759 | log_warning_errno(r, "rtnl: could not get ifindex from message, ignoring: %m"); |
200a0868 TG |
760 | return 0; |
761 | } else if (ifindex <= 0) { | |
7f474ed7 | 762 | log_warning("rtnl: received address message with invalid ifindex %d, ignoring.", ifindex); |
200a0868 | 763 | return 0; |
44e891bb ZJS |
764 | } |
765 | ||
766 | r = link_get(m, ifindex, &link); | |
767 | if (r < 0 || !link) { | |
768 | /* when enumerating we might be out of sync, but we will get the address again, so just | |
769 | * ignore it */ | |
770 | if (!m->enumerating) | |
7f474ed7 | 771 | log_warning("rtnl: received address for link '%d' we don't know about, ignoring.", ifindex); |
44e891bb | 772 | return 0; |
200a0868 TG |
773 | } |
774 | ||
054f0db4 | 775 | r = sd_rtnl_message_addr_get_family(message, &family); |
509b06ff YW |
776 | if (r < 0) { |
777 | log_link_warning(link, "rtnl: received address message without family, ignoring."); | |
778 | return 0; | |
779 | } else if (!IN_SET(family, AF_INET, AF_INET6)) { | |
780 | log_link_debug(link, "rtnl: received address message with invalid family '%i', ignoring.", family); | |
200a0868 TG |
781 | return 0; |
782 | } | |
783 | ||
054f0db4 | 784 | r = sd_rtnl_message_addr_get_prefixlen(message, &prefixlen); |
200a0868 | 785 | if (r < 0) { |
44e891bb | 786 | log_link_warning_errno(link, r, "rtnl: received address message with invalid prefixlen, ignoring: %m"); |
200a0868 TG |
787 | return 0; |
788 | } | |
789 | ||
054f0db4 | 790 | r = sd_rtnl_message_addr_get_scope(message, &scope); |
200a0868 | 791 | if (r < 0) { |
44e891bb | 792 | log_link_warning_errno(link, r, "rtnl: received address message with invalid scope, ignoring: %m"); |
200a0868 TG |
793 | return 0; |
794 | } | |
795 | ||
796 | r = sd_rtnl_message_addr_get_flags(message, &flags); | |
797 | if (r < 0) { | |
44e891bb | 798 | log_link_warning_errno(link, r, "rtnl: received address message with invalid flags, ignoring: %m"); |
200a0868 TG |
799 | return 0; |
800 | } | |
200a0868 | 801 | |
054f0db4 | 802 | switch (family) { |
200a0868 | 803 | case AF_INET: |
054f0db4 | 804 | r = sd_netlink_message_read_in_addr(message, IFA_LOCAL, &in_addr.in); |
200a0868 | 805 | if (r < 0) { |
44e891bb | 806 | log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m"); |
200a0868 TG |
807 | return 0; |
808 | } | |
809 | ||
810 | break; | |
811 | ||
812 | case AF_INET6: | |
054f0db4 | 813 | r = sd_netlink_message_read_in6_addr(message, IFA_ADDRESS, &in_addr.in6); |
200a0868 | 814 | if (r < 0) { |
44e891bb | 815 | log_link_warning_errno(link, r, "rtnl: received address message without valid address, ignoring: %m"); |
200a0868 TG |
816 | return 0; |
817 | } | |
818 | ||
819 | break; | |
820 | ||
821 | default: | |
e1694a75 | 822 | assert_not_reached("Received unsupported address family"); |
200a0868 TG |
823 | } |
824 | ||
57e44707 | 825 | r = in_addr_to_string(family, &in_addr, &buf); |
44e891bb ZJS |
826 | if (r < 0) |
827 | log_link_warning_errno(link, r, "Could not print address: %m"); | |
200a0868 | 828 | |
054f0db4 | 829 | r = sd_netlink_message_read_cache_info(message, IFA_CACHEINFO, &cinfo); |
e1694a75 YW |
830 | if (r < 0 && r != -ENODATA) { |
831 | log_link_warning_errno(link, r, "rtnl: cannot get IFA_CACHEINFO attribute, ignoring: %m"); | |
832 | return 0; | |
57e44707 YW |
833 | } else if (r >= 0 && cinfo.ifa_valid != CACHE_INFO_INFINITY_LIFE_TIME) |
834 | valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX, | |
835 | cinfo.ifa_valid * USEC_PER_SEC, | |
836 | USEC_PER_SEC); | |
200a0868 | 837 | |
e1694a75 | 838 | (void) address_get(link, family, &in_addr, prefixlen, &address); |
200a0868 TG |
839 | |
840 | switch (type) { | |
841 | case RTM_NEWADDR: | |
36c32f61 | 842 | if (address) |
44e891bb ZJS |
843 | log_link_debug(link, "Remembering updated address: %s/%u (valid %s%s)", |
844 | strnull(buf), prefixlen, | |
87e4e28d | 845 | valid_str ? "for " : "forever", strempty(valid_str)); |
36c32f61 | 846 | else { |
adda1ed9 TG |
847 | /* An address appeared that we did not request */ |
848 | r = address_add_foreign(link, family, &in_addr, prefixlen, &address); | |
cf1d700d | 849 | if (r < 0) { |
44e891bb ZJS |
850 | log_link_warning_errno(link, r, "Failed to remember foreign address %s/%u, ignoring: %m", |
851 | strnull(buf), prefixlen); | |
cf1d700d TG |
852 | return 0; |
853 | } else | |
44e891bb ZJS |
854 | log_link_debug(link, "Remembering foreign address: %s/%u (valid %s%s)", |
855 | strnull(buf), prefixlen, | |
87e4e28d | 856 | valid_str ? "for " : "forever", strempty(valid_str)); |
200a0868 TG |
857 | } |
858 | ||
44e891bb ZJS |
859 | /* address_update() logs internally, so we don't need to. */ |
860 | (void) address_update(address, flags, scope, &cinfo); | |
36c32f61 | 861 | |
200a0868 TG |
862 | break; |
863 | ||
864 | case RTM_DELADDR: | |
054f0db4 | 865 | if (address) { |
44e891bb ZJS |
866 | log_link_debug(link, "Forgetting address: %s/%u (valid %s%s)", |
867 | strnull(buf), prefixlen, | |
87e4e28d | 868 | valid_str ? "for " : "forever", strempty(valid_str)); |
e1694a75 | 869 | (void) address_drop(address); |
200a0868 | 870 | } else |
d6246fd4 YW |
871 | log_link_debug(link, "Kernel removed an address we don't remember: %s/%u (valid %s%s), ignoring.", |
872 | strnull(buf), prefixlen, | |
873 | valid_str ? "for " : "forever", strempty(valid_str)); | |
200a0868 TG |
874 | |
875 | break; | |
44e891bb | 876 | |
200a0868 TG |
877 | default: |
878 | assert_not_reached("Received invalid RTNL message type"); | |
879 | } | |
880 | ||
881 | return 1; | |
882 | } | |
883 | ||
1c4baffc | 884 | static int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) { |
505f8da7 TG |
885 | Manager *m = userdata; |
886 | Link *link = NULL; | |
4d473d5d | 887 | NetDev *netdev = NULL; |
f2236469 | 888 | uint16_t type; |
ca4e095a | 889 | const char *name; |
505f8da7 | 890 | int r, ifindex; |
f579559b | 891 | |
505f8da7 TG |
892 | assert(rtnl); |
893 | assert(message); | |
f579559b TG |
894 | assert(m); |
895 | ||
1c4baffc TG |
896 | if (sd_netlink_message_is_error(message)) { |
897 | r = sd_netlink_message_get_errno(message); | |
45af44d4 | 898 | if (r < 0) |
5ecb131d | 899 | log_message_warning_errno(message, r, "rtnl: Could not receive link message, ignoring"); |
45af44d4 TG |
900 | |
901 | return 0; | |
902 | } | |
903 | ||
1c4baffc | 904 | r = sd_netlink_message_get_type(message, &type); |
f2236469 | 905 | if (r < 0) { |
e1694a75 | 906 | log_warning_errno(r, "rtnl: Could not get message type, ignoring: %m"); |
f2236469 | 907 | return 0; |
25a1bffc | 908 | } else if (!IN_SET(type, RTM_NEWLINK, RTM_DELLINK)) { |
7f474ed7 | 909 | log_warning("rtnl: Received unexpected message type %u when processing link, ignoring.", type); |
cdfee943 | 910 | return 0; |
f2236469 TG |
911 | } |
912 | ||
505f8da7 | 913 | r = sd_rtnl_message_link_get_ifindex(message, &ifindex); |
45af44d4 | 914 | if (r < 0) { |
7f474ed7 | 915 | log_warning_errno(r, "rtnl: Could not get ifindex from link message, ignoring: %m"); |
45af44d4 TG |
916 | return 0; |
917 | } else if (ifindex <= 0) { | |
7f474ed7 | 918 | log_warning("rtnl: received link message with invalid ifindex %d, ignoring.", ifindex); |
505f8da7 | 919 | return 0; |
a0db8e46 | 920 | } |
f579559b | 921 | |
1c4baffc | 922 | r = sd_netlink_message_read_string(message, IFLA_IFNAME, &name); |
45af44d4 | 923 | if (r < 0) { |
e1694a75 | 924 | log_warning_errno(r, "rtnl: Received link message without ifname, ignoring: %m"); |
4d473d5d | 925 | return 0; |
a0db8e46 ZJS |
926 | } |
927 | ||
928 | (void) link_get(m, ifindex, &link); | |
929 | (void) netdev_get(m, name, &netdev); | |
4d473d5d TG |
930 | |
931 | switch (type) { | |
932 | case RTM_NEWLINK: | |
933 | if (!link) { | |
934 | /* link is new, so add it */ | |
935 | r = link_add(m, message, &link); | |
936 | if (r < 0) { | |
7f474ed7 | 937 | log_warning_errno(r, "Could not process new link message, ignoring: %m"); |
4d473d5d TG |
938 | return 0; |
939 | } | |
940 | } | |
941 | ||
942 | if (netdev) { | |
943 | /* netdev exists, so make sure the ifindex matches */ | |
505f8da7 TG |
944 | r = netdev_set_ifindex(netdev, message); |
945 | if (r < 0) { | |
7f474ed7 | 946 | log_warning_errno(r, "Could not process new link message for netdev, ignoring: %m"); |
505f8da7 TG |
947 | return 0; |
948 | } | |
949 | } | |
e1202047 | 950 | |
f2236469 | 951 | r = link_update(link, message); |
e1694a75 | 952 | if (r < 0) { |
7f474ed7 | 953 | log_warning_errno(r, "Could not process link message, ignoring: %m"); |
f2236469 | 954 | return 0; |
e1694a75 | 955 | } |
4d473d5d TG |
956 | |
957 | break; | |
958 | ||
959 | case RTM_DELLINK: | |
960 | link_drop(link); | |
961 | netdev_drop(netdev); | |
962 | ||
963 | break; | |
964 | ||
965 | default: | |
7f474ed7 | 966 | assert_not_reached("Received link message with invalid RTNL message type."); |
f2236469 | 967 | } |
505f8da7 TG |
968 | |
969 | return 1; | |
970 | } | |
971 | ||
bce67bbe | 972 | int manager_rtnl_process_rule(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) { |
b80a511b | 973 | _cleanup_(routing_policy_rule_freep) RoutingPolicyRule *tmp = NULL; |
15201512 | 974 | _cleanup_free_ char *from = NULL, *to = NULL; |
bce67bbe | 975 | RoutingPolicyRule *rule = NULL; |
eeab051b | 976 | const char *iif = NULL, *oif = NULL; |
53e1ba28 | 977 | uint32_t suppress_prefixlen; |
bce67bbe | 978 | Manager *m = userdata; |
b80a511b | 979 | unsigned flags; |
bce67bbe | 980 | uint16_t type; |
bce67bbe SS |
981 | int r; |
982 | ||
983 | assert(rtnl); | |
984 | assert(message); | |
985 | assert(m); | |
986 | ||
987 | if (sd_netlink_message_is_error(message)) { | |
988 | r = sd_netlink_message_get_errno(message); | |
989 | if (r < 0) | |
5ecb131d | 990 | log_message_warning_errno(message, r, "rtnl: failed to receive rule message, ignoring"); |
bce67bbe SS |
991 | |
992 | return 0; | |
993 | } | |
994 | ||
995 | r = sd_netlink_message_get_type(message, &type); | |
996 | if (r < 0) { | |
e1694a75 | 997 | log_warning_errno(r, "rtnl: could not get message type, ignoring: %m"); |
bce67bbe SS |
998 | return 0; |
999 | } else if (!IN_SET(type, RTM_NEWRULE, RTM_DELRULE)) { | |
7f474ed7 | 1000 | log_warning("rtnl: received unexpected message type %u when processing rule, ignoring.", type); |
bce67bbe SS |
1001 | return 0; |
1002 | } | |
1003 | ||
b80a511b YW |
1004 | r = routing_policy_rule_new(&tmp); |
1005 | if (r < 0) { | |
1006 | log_oom(); | |
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | r = sd_rtnl_message_get_family(message, &tmp->family); | |
615ded62 | 1011 | if (r < 0) { |
e1694a75 | 1012 | log_warning_errno(r, "rtnl: could not get rule family, ignoring: %m"); |
615ded62 | 1013 | return 0; |
b80a511b | 1014 | } else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) { |
7f474ed7 | 1015 | log_debug("rtnl: received rule message with invalid family %d, ignoring.", tmp->family); |
bce67bbe SS |
1016 | return 0; |
1017 | } | |
1018 | ||
b80a511b | 1019 | switch (tmp->family) { |
bce67bbe | 1020 | case AF_INET: |
b80a511b | 1021 | r = sd_netlink_message_read_in_addr(message, FRA_SRC, &tmp->from.in); |
e1694a75 YW |
1022 | if (r < 0 && r != -ENODATA) { |
1023 | log_warning_errno(r, "rtnl: could not get FRA_SRC attribute, ignoring: %m"); | |
1024 | return 0; | |
1025 | } else if (r >= 0) { | |
b80a511b | 1026 | r = sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(message, &tmp->from_prefixlen); |
e1694a75 | 1027 | if (r < 0) { |
7f474ed7 | 1028 | log_warning_errno(r, "rtnl: received rule message without valid source prefix length, ignoring: %m"); |
e1694a75 YW |
1029 | return 0; |
1030 | } | |
bce67bbe SS |
1031 | } |
1032 | ||
b80a511b | 1033 | r = sd_netlink_message_read_in_addr(message, FRA_DST, &tmp->to.in); |
e1694a75 YW |
1034 | if (r < 0 && r != -ENODATA) { |
1035 | log_warning_errno(r, "rtnl: could not get FRA_DST attribute, ignoring: %m"); | |
1036 | return 0; | |
1037 | } else if (r >= 0) { | |
b80a511b | 1038 | r = sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(message, &tmp->to_prefixlen); |
e1694a75 | 1039 | if (r < 0) { |
7f474ed7 | 1040 | log_warning_errno(r, "rtnl: received rule message without valid destination prefix length, ignoring: %m"); |
e1694a75 YW |
1041 | return 0; |
1042 | } | |
bce67bbe SS |
1043 | } |
1044 | ||
1045 | break; | |
1046 | ||
1047 | case AF_INET6: | |
b80a511b | 1048 | r = sd_netlink_message_read_in6_addr(message, FRA_SRC, &tmp->from.in6); |
e1694a75 YW |
1049 | if (r < 0 && r != -ENODATA) { |
1050 | log_warning_errno(r, "rtnl: could not get FRA_SRC attribute, ignoring: %m"); | |
1051 | return 0; | |
1052 | } else if (r >= 0) { | |
b80a511b | 1053 | r = sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(message, &tmp->from_prefixlen); |
e1694a75 | 1054 | if (r < 0) { |
7f474ed7 | 1055 | log_warning_errno(r, "rtnl: received rule message without valid source prefix length, ignoring: %m"); |
e1694a75 YW |
1056 | return 0; |
1057 | } | |
bce67bbe SS |
1058 | } |
1059 | ||
b80a511b | 1060 | r = sd_netlink_message_read_in6_addr(message, FRA_DST, &tmp->to.in6); |
e1694a75 YW |
1061 | if (r < 0 && r != -ENODATA) { |
1062 | log_warning_errno(r, "rtnl: could not get FRA_DST attribute, ignoring: %m"); | |
1063 | return 0; | |
1064 | } else if (r >= 0) { | |
b80a511b | 1065 | r = sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(message, &tmp->to_prefixlen); |
e1694a75 | 1066 | if (r < 0) { |
7f474ed7 | 1067 | log_warning_errno(r, "rtnl: received rule message without valid destination prefix length, ignoring: %m"); |
e1694a75 YW |
1068 | return 0; |
1069 | } | |
bce67bbe SS |
1070 | } |
1071 | ||
1072 | break; | |
1073 | ||
1074 | default: | |
7f474ed7 | 1075 | assert_not_reached("Received rule message with unsupported address family"); |
bce67bbe SS |
1076 | } |
1077 | ||
b80a511b | 1078 | if (tmp->from_prefixlen == 0 && tmp->to_prefixlen == 0) |
bce67bbe SS |
1079 | return 0; |
1080 | ||
b80a511b YW |
1081 | r = sd_rtnl_message_routing_policy_rule_get_flags(message, &flags); |
1082 | if (r < 0) { | |
7f474ed7 | 1083 | log_warning_errno(r, "rtnl: received rule message without valid flag, ignoring: %m"); |
b80a511b YW |
1084 | return 0; |
1085 | } | |
1086 | tmp->invert_rule = flags & FIB_RULE_INVERT; | |
1087 | ||
1088 | r = sd_netlink_message_read_u32(message, FRA_FWMARK, &tmp->fwmark); | |
e1694a75 YW |
1089 | if (r < 0 && r != -ENODATA) { |
1090 | log_warning_errno(r, "rtnl: could not get FRA_FWMARK attribute, ignoring: %m"); | |
1091 | return 0; | |
1092 | } | |
1093 | ||
b80a511b YW |
1094 | r = sd_netlink_message_read_u32(message, FRA_FWMASK, &tmp->fwmask); |
1095 | if (r < 0 && r != -ENODATA) { | |
1096 | log_warning_errno(r, "rtnl: could not get FRA_FWMASK attribute, ignoring: %m"); | |
1097 | return 0; | |
1098 | } | |
1099 | ||
1100 | r = sd_netlink_message_read_u32(message, FRA_PRIORITY, &tmp->priority); | |
1101 | if (r < 0 && r != -ENODATA) { | |
1102 | log_warning_errno(r, "rtnl: could not get FRA_PRIORITY attribute, ignoring: %m"); | |
1103 | return 0; | |
1104 | } | |
1105 | ||
1106 | r = sd_netlink_message_read_u32(message, FRA_TABLE, &tmp->table); | |
e1694a75 YW |
1107 | if (r < 0 && r != -ENODATA) { |
1108 | log_warning_errno(r, "rtnl: could not get FRA_TABLE attribute, ignoring: %m"); | |
1109 | return 0; | |
1110 | } | |
1111 | ||
b80a511b | 1112 | r = sd_rtnl_message_routing_policy_rule_get_tos(message, &tmp->tos); |
e1694a75 YW |
1113 | if (r < 0 && r != -ENODATA) { |
1114 | log_warning_errno(r, "rtnl: could not get ip rule TOS, ignoring: %m"); | |
1115 | return 0; | |
1116 | } | |
1117 | ||
eeab051b | 1118 | r = sd_netlink_message_read_string(message, FRA_IIFNAME, &iif); |
e1694a75 YW |
1119 | if (r < 0 && r != -ENODATA) { |
1120 | log_warning_errno(r, "rtnl: could not get FRA_IIFNAME attribute, ignoring: %m"); | |
1121 | return 0; | |
1122 | } | |
b80a511b YW |
1123 | r = free_and_strdup(&tmp->iif, iif); |
1124 | if (r < 0) | |
1125 | return log_oom(); | |
e1694a75 | 1126 | |
eeab051b | 1127 | r = sd_netlink_message_read_string(message, FRA_OIFNAME, &oif); |
e1694a75 YW |
1128 | if (r < 0 && r != -ENODATA) { |
1129 | log_warning_errno(r, "rtnl: could not get FRA_OIFNAME attribute, ignoring: %m"); | |
1130 | return 0; | |
1131 | } | |
b80a511b YW |
1132 | r = free_and_strdup(&tmp->oif, oif); |
1133 | if (r < 0) | |
1134 | return log_oom(); | |
bce67bbe | 1135 | |
b80a511b | 1136 | r = sd_netlink_message_read_u8(message, FRA_IP_PROTO, &tmp->protocol); |
926062f0 SS |
1137 | if (r < 0 && r != -ENODATA) { |
1138 | log_warning_errno(r, "rtnl: could not get FRA_IP_PROTO attribute, ignoring: %m"); | |
1139 | return 0; | |
1140 | } | |
1141 | ||
b80a511b | 1142 | r = sd_netlink_message_read(message, FRA_SPORT_RANGE, sizeof(tmp->sport), &tmp->sport); |
926062f0 SS |
1143 | if (r < 0 && r != -ENODATA) { |
1144 | log_warning_errno(r, "rtnl: could not get FRA_SPORT_RANGE attribute, ignoring: %m"); | |
1145 | return 0; | |
1146 | } | |
1147 | ||
b80a511b | 1148 | r = sd_netlink_message_read(message, FRA_DPORT_RANGE, sizeof(tmp->dport), &tmp->dport); |
926062f0 SS |
1149 | if (r < 0 && r != -ENODATA) { |
1150 | log_warning_errno(r, "rtnl: could not get FRA_DPORT_RANGE attribute, ignoring: %m"); | |
1151 | return 0; | |
1152 | } | |
1153 | ||
ea471a46 YW |
1154 | r = sd_netlink_message_read(message, FRA_UID_RANGE, sizeof(tmp->uid_range), &tmp->uid_range); |
1155 | if (r < 0 && r != -ENODATA) { | |
1156 | log_warning_errno(r, "rtnl: could not get FRA_UID_RANGE attribute, ignoring: %m"); | |
1157 | return 0; | |
1158 | } | |
1159 | ||
53e1ba28 NF |
1160 | r = sd_netlink_message_read_u32(message, FRA_SUPPRESS_PREFIXLEN, &suppress_prefixlen); |
1161 | if (r < 0 && r != -ENODATA) { | |
1162 | log_warning_errno(r, "rtnl: could not get FRA_SUPPRESS_PREFIXLEN attribute, ignoring: %m"); | |
1163 | return 0; | |
1164 | } | |
1165 | if (r >= 0) | |
1166 | tmp->suppress_prefixlen = (int) suppress_prefixlen; | |
1167 | ||
b80a511b | 1168 | (void) routing_policy_rule_get(m, tmp, &rule); |
bce67bbe | 1169 | |
15201512 YW |
1170 | if (DEBUG_LOGGING) { |
1171 | (void) in_addr_to_string(tmp->family, &tmp->from, &from); | |
1172 | (void) in_addr_to_string(tmp->family, &tmp->to, &to); | |
1173 | } | |
1174 | ||
bce67bbe SS |
1175 | switch (type) { |
1176 | case RTM_NEWRULE: | |
508f63b4 | 1177 | if (!rule) { |
15201512 YW |
1178 | log_debug("Remembering foreign routing policy rule: %s/%u -> %s/%u, iif: %s, oif: %s, table: %u", |
1179 | from, tmp->from_prefixlen, to, tmp->to_prefixlen, strna(tmp->iif), strna(tmp->oif), tmp->table); | |
b80a511b | 1180 | r = routing_policy_rule_add_foreign(m, tmp, &rule); |
bce67bbe | 1181 | if (r < 0) { |
7f474ed7 | 1182 | log_warning_errno(r, "Could not remember foreign rule, ignoring: %m"); |
bce67bbe SS |
1183 | return 0; |
1184 | } | |
1185 | } | |
1186 | break; | |
1187 | case RTM_DELRULE: | |
15201512 YW |
1188 | log_debug("Forgetting routing policy rule: %s/%u -> %s/%u, iif: %s, oif: %s, table: %u", |
1189 | from, tmp->from_prefixlen, to, tmp->to_prefixlen, strna(tmp->iif), strna(tmp->oif), tmp->table); | |
bce67bbe SS |
1190 | routing_policy_rule_free(rule); |
1191 | ||
1192 | break; | |
1193 | ||
1194 | default: | |
1195 | assert_not_reached("Received invalid RTNL message type"); | |
1196 | } | |
1197 | ||
1198 | return 1; | |
1199 | } | |
1200 | ||
c16c7808 SS |
1201 | int manager_rtnl_process_nexthop(sd_netlink *rtnl, sd_netlink_message *message, void *userdata) { |
1202 | _cleanup_(nexthop_freep) NextHop *tmp = NULL; | |
1203 | _cleanup_free_ char *gateway = NULL; | |
1204 | NextHop *nexthop = NULL; | |
1205 | Manager *m = userdata; | |
1206 | Link *link = NULL; | |
1207 | uint16_t type; | |
1208 | int r; | |
1209 | ||
1210 | assert(rtnl); | |
1211 | assert(message); | |
1212 | assert(m); | |
1213 | ||
1214 | if (sd_netlink_message_is_error(message)) { | |
1215 | r = sd_netlink_message_get_errno(message); | |
1216 | if (r < 0) | |
5ecb131d | 1217 | log_message_warning_errno(message, r, "rtnl: failed to receive rule message, ignoring"); |
c16c7808 SS |
1218 | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | r = sd_netlink_message_get_type(message, &type); | |
1223 | if (r < 0) { | |
1224 | log_warning_errno(r, "rtnl: could not get message type, ignoring: %m"); | |
1225 | return 0; | |
1226 | } else if (!IN_SET(type, RTM_NEWNEXTHOP, RTM_DELNEXTHOP)) { | |
1227 | log_warning("rtnl: received unexpected message type %u when processing nexthop, ignoring.", type); | |
1228 | return 0; | |
1229 | } | |
1230 | ||
1231 | r = nexthop_new(&tmp); | |
1232 | if (r < 0) | |
1233 | return log_oom(); | |
1234 | ||
1235 | r = sd_rtnl_message_get_family(message, &tmp->family); | |
1236 | if (r < 0) { | |
1237 | log_warning_errno(r, "rtnl: could not get nexthop family, ignoring: %m"); | |
1238 | return 0; | |
1239 | } else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) { | |
1240 | log_debug("rtnl: received nexthop message with invalid family %d, ignoring.", tmp->family); | |
1241 | return 0; | |
1242 | } | |
1243 | ||
1244 | switch (tmp->family) { | |
1245 | case AF_INET: | |
1246 | r = sd_netlink_message_read_in_addr(message, NHA_GATEWAY, &tmp->gw.in); | |
1247 | if (r < 0 && r != -ENODATA) { | |
1248 | log_warning_errno(r, "rtnl: could not get NHA_GATEWAY attribute, ignoring: %m"); | |
1249 | return 0; | |
1250 | } | |
1251 | break; | |
1252 | ||
1253 | case AF_INET6: | |
1254 | r = sd_netlink_message_read_in6_addr(message, NHA_GATEWAY, &tmp->gw.in6); | |
1255 | if (r < 0 && r != -ENODATA) { | |
1256 | log_warning_errno(r, "rtnl: could not get NHA_GATEWAY attribute, ignoring: %m"); | |
1257 | return 0; | |
1258 | } | |
1259 | break; | |
1260 | ||
1261 | default: | |
1262 | assert_not_reached("Received rule message with unsupported address family"); | |
1263 | } | |
1264 | ||
1265 | r = sd_netlink_message_read_u32(message, NHA_ID, &tmp->id); | |
1266 | if (r < 0 && r != -ENODATA) { | |
1267 | log_warning_errno(r, "rtnl: could not get NHA_ID attribute, ignoring: %m"); | |
1268 | return 0; | |
1269 | } | |
1270 | ||
1271 | r = sd_netlink_message_read_u32(message, NHA_OIF, &tmp->oif); | |
1272 | if (r < 0 && r != -ENODATA) { | |
1273 | log_warning_errno(r, "rtnl: could not get NHA_OIF attribute, ignoring: %m"); | |
1274 | return 0; | |
25b831ba YW |
1275 | } else if (tmp->oif <= 0) { |
1276 | log_warning("rtnl: received nexthop message with invalid ifindex %d, ignoring.", tmp->oif); | |
1277 | return 0; | |
c16c7808 SS |
1278 | } |
1279 | ||
1280 | r = link_get(m, tmp->oif, &link); | |
1281 | if (r < 0 || !link) { | |
1282 | if (!m->enumerating) | |
1283 | log_warning("rtnl: received nexthop message for link (%d) we do not know about, ignoring", tmp->oif); | |
1284 | return 0; | |
1285 | } | |
1286 | ||
1287 | (void) nexthop_get(link, tmp, &nexthop); | |
1288 | ||
1289 | if (DEBUG_LOGGING) | |
1290 | (void) in_addr_to_string(tmp->family, &tmp->gw, &gateway); | |
1291 | ||
1292 | switch (type) { | |
1293 | case RTM_NEWNEXTHOP: | |
1294 | if (!nexthop) { | |
1295 | log_debug("Remembering foreign nexthop: %s, oif: %d, id: %d", gateway, tmp->oif, tmp->id); | |
1296 | r = nexthop_add_foreign(link, tmp, &nexthop); | |
1297 | if (r < 0) { | |
1298 | log_warning_errno(r, "Could not remember foreign nexthop, ignoring: %m"); | |
1299 | return 0; | |
1300 | } | |
1301 | } | |
1302 | break; | |
1303 | case RTM_DELNEXTHOP: | |
1304 | log_debug("Forgetting foreign nexthop: %s, oif: %d, id: %d", gateway, tmp->oif, tmp->id); | |
1305 | nexthop_free(nexthop); | |
1306 | ||
1307 | break; | |
1308 | ||
1309 | default: | |
1310 | assert_not_reached("Received invalid RTNL message type"); | |
1311 | } | |
1312 | ||
1313 | return 1; | |
1314 | } | |
1315 | ||
5fae368b TG |
1316 | static int systemd_netlink_fd(void) { |
1317 | int n, fd, rtnl_fd = -EINVAL; | |
1318 | ||
1319 | n = sd_listen_fds(true); | |
1320 | if (n <= 0) | |
1321 | return -EINVAL; | |
1322 | ||
1323 | for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) { | |
1324 | if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) { | |
1325 | if (rtnl_fd >= 0) | |
1326 | return -EINVAL; | |
1327 | ||
1328 | rtnl_fd = fd; | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | return rtnl_fd; | |
1333 | } | |
1334 | ||
05d0c2e3 JT |
1335 | static int manager_connect_genl(Manager *m) { |
1336 | int r; | |
1337 | ||
1338 | assert(m); | |
1339 | ||
1340 | r = sd_genl_socket_open(&m->genl); | |
1341 | if (r < 0) | |
1342 | return r; | |
1343 | ||
1344 | r = sd_netlink_inc_rcvbuf(m->genl, RCVBUF_SIZE); | |
1345 | if (r < 0) | |
1346 | return r; | |
1347 | ||
1348 | r = sd_netlink_attach_event(m->genl, m->event, 0); | |
1349 | if (r < 0) | |
1350 | return r; | |
1351 | ||
1352 | return 0; | |
1353 | } | |
1354 | ||
5fae368b TG |
1355 | static int manager_connect_rtnl(Manager *m) { |
1356 | int fd, r; | |
505f8da7 TG |
1357 | |
1358 | assert(m); | |
505f8da7 | 1359 | |
5fae368b TG |
1360 | fd = systemd_netlink_fd(); |
1361 | if (fd < 0) | |
1c4baffc | 1362 | r = sd_netlink_open(&m->rtnl); |
5fae368b | 1363 | else |
1c4baffc | 1364 | r = sd_netlink_open_fd(&m->rtnl, fd); |
505f8da7 TG |
1365 | if (r < 0) |
1366 | return r; | |
1367 | ||
1c4baffc | 1368 | r = sd_netlink_inc_rcvbuf(m->rtnl, RCVBUF_SIZE); |
f579559b | 1369 | if (r < 0) |
bf5332d2 | 1370 | return r; |
f579559b | 1371 | |
1c4baffc | 1372 | r = sd_netlink_attach_event(m->rtnl, m->event, 0); |
505f8da7 TG |
1373 | if (r < 0) |
1374 | return r; | |
f579559b | 1375 | |
8190a388 | 1376 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWLINK, &manager_rtnl_process_link, NULL, m, "network-rtnl_process_link"); |
5fae368b TG |
1377 | if (r < 0) |
1378 | return r; | |
505f8da7 | 1379 | |
8190a388 | 1380 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELLINK, &manager_rtnl_process_link, NULL, m, "network-rtnl_process_link"); |
5fae368b TG |
1381 | if (r < 0) |
1382 | return r; | |
45af44d4 | 1383 | |
8190a388 | 1384 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWADDR, &manager_rtnl_process_address, NULL, m, "network-rtnl_process_address"); |
5fae368b TG |
1385 | if (r < 0) |
1386 | return r; | |
1387 | ||
8190a388 | 1388 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELADDR, &manager_rtnl_process_address, NULL, m, "network-rtnl_process_address"); |
5fae368b TG |
1389 | if (r < 0) |
1390 | return r; | |
1391 | ||
d1bdafd2 WKI |
1392 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWNEIGH, &manager_rtnl_process_neighbor, NULL, m, "network-rtnl_process_neighbor"); |
1393 | if (r < 0) | |
1394 | return r; | |
1395 | ||
1396 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELNEIGH, &manager_rtnl_process_neighbor, NULL, m, "network-rtnl_process_neighbor"); | |
1397 | if (r < 0) | |
1398 | return r; | |
1399 | ||
8190a388 | 1400 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWROUTE, &manager_rtnl_process_route, NULL, m, "network-rtnl_process_route"); |
1c8e710c TG |
1401 | if (r < 0) |
1402 | return r; | |
1403 | ||
8190a388 | 1404 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELROUTE, &manager_rtnl_process_route, NULL, m, "network-rtnl_process_route"); |
1c8e710c TG |
1405 | if (r < 0) |
1406 | return r; | |
1407 | ||
8190a388 | 1408 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWRULE, &manager_rtnl_process_rule, NULL, m, "network-rtnl_process_rule"); |
bce67bbe SS |
1409 | if (r < 0) |
1410 | return r; | |
1411 | ||
8190a388 | 1412 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELRULE, &manager_rtnl_process_rule, NULL, m, "network-rtnl_process_rule"); |
bce67bbe SS |
1413 | if (r < 0) |
1414 | return r; | |
1415 | ||
c16c7808 SS |
1416 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_NEWNEXTHOP, &manager_rtnl_process_nexthop, NULL, m, "network-rtnl_process_nexthop"); |
1417 | if (r < 0) | |
1418 | return r; | |
1419 | ||
1420 | r = sd_netlink_add_match(m->rtnl, NULL, RTM_DELNEXTHOP, &manager_rtnl_process_nexthop, NULL, m, "network-rtnl_process_nexthop"); | |
1421 | if (r < 0) | |
1422 | return r; | |
1423 | ||
5fae368b | 1424 | return 0; |
45af44d4 | 1425 | } |
505f8da7 | 1426 | |
5512a963 | 1427 | static int ordered_set_put_in_addr_data(OrderedSet *s, const struct in_addr_data *address) { |
84de38c5 TG |
1428 | char *p; |
1429 | int r; | |
1430 | ||
1431 | assert(s); | |
5512a963 LP |
1432 | assert(address); |
1433 | ||
1434 | r = in_addr_to_string(address->family, &address->address, &p); | |
1435 | if (r < 0) | |
1436 | return r; | |
1437 | ||
1438 | r = ordered_set_consume(s, p); | |
1439 | if (r == -EEXIST) | |
1440 | return 0; | |
1441 | ||
1442 | return r; | |
1443 | } | |
1444 | ||
1445 | static int ordered_set_put_in_addr_datav(OrderedSet *s, const struct in_addr_data *addresses, unsigned n) { | |
1446 | int r, c = 0; | |
1447 | unsigned i; | |
1448 | ||
1449 | assert(s); | |
1450 | assert(addresses || n == 0); | |
1451 | ||
1452 | for (i = 0; i < n; i++) { | |
1453 | r = ordered_set_put_in_addr_data(s, addresses+i); | |
1454 | if (r < 0) | |
1455 | return r; | |
1456 | ||
1457 | c += r; | |
1458 | } | |
1459 | ||
1460 | return c; | |
1461 | } | |
1462 | ||
1463 | static int ordered_set_put_in4_addr(OrderedSet *s, const struct in_addr *address) { | |
1464 | char *p; | |
1465 | int r; | |
1466 | ||
1467 | assert(s); | |
1468 | assert(address); | |
84de38c5 TG |
1469 | |
1470 | r = in_addr_to_string(AF_INET, (const union in_addr_union*) address, &p); | |
1471 | if (r < 0) | |
1472 | return r; | |
1473 | ||
00616955 | 1474 | r = ordered_set_consume(s, p); |
84de38c5 TG |
1475 | if (r == -EEXIST) |
1476 | return 0; | |
1477 | ||
1478 | return r; | |
1479 | } | |
1480 | ||
072320ea TH |
1481 | static int ordered_set_put_in4_addrv(OrderedSet *s, |
1482 | const struct in_addr *addresses, | |
1483 | size_t n, | |
1484 | bool (*predicate)(const struct in_addr *addr)) { | |
5512a963 | 1485 | int r, c = 0; |
072320ea | 1486 | size_t i; |
84de38c5 TG |
1487 | |
1488 | assert(s); | |
5512a963 | 1489 | assert(n == 0 || addresses); |
84de38c5 TG |
1490 | |
1491 | for (i = 0; i < n; i++) { | |
072320ea TH |
1492 | if (predicate && !predicate(&addresses[i])) |
1493 | continue; | |
5512a963 | 1494 | r = ordered_set_put_in4_addr(s, addresses+i); |
84de38c5 TG |
1495 | if (r < 0) |
1496 | return r; | |
1497 | ||
1498 | c += r; | |
1499 | } | |
1500 | ||
1501 | return c; | |
1502 | } | |
1503 | ||
84de38c5 | 1504 | static int manager_save(Manager *m) { |
2a71d57f | 1505 | _cleanup_ordered_set_free_free_ OrderedSet *dns = NULL, *ntp = NULL, *sip = NULL, *search_domains = NULL, *route_domains = NULL; |
299d578f | 1506 | const char *operstate_str, *carrier_state_str, *address_state_str; |
84de38c5 | 1507 | LinkOperationalState operstate = LINK_OPERSTATE_OFF; |
7f3c07ad YW |
1508 | LinkCarrierState carrier_state = LINK_CARRIER_STATE_OFF; |
1509 | LinkAddressState address_state = LINK_ADDRESS_STATE_OFF; | |
299d578f SS |
1510 | _cleanup_free_ char *temp_path = NULL; |
1511 | _cleanup_strv_free_ char **p = NULL; | |
1512 | _cleanup_fclose_ FILE *f = NULL; | |
1513 | Link *link; | |
1514 | Iterator i; | |
84de38c5 TG |
1515 | int r; |
1516 | ||
1517 | assert(m); | |
1518 | assert(m->state_file); | |
1519 | ||
1520 | /* We add all NTP and DNS server to a set, to filter out duplicates */ | |
00616955 | 1521 | dns = ordered_set_new(&string_hash_ops); |
84de38c5 TG |
1522 | if (!dns) |
1523 | return -ENOMEM; | |
1524 | ||
00616955 | 1525 | ntp = ordered_set_new(&string_hash_ops); |
84de38c5 TG |
1526 | if (!ntp) |
1527 | return -ENOMEM; | |
1528 | ||
284e8fd0 SS |
1529 | sip = ordered_set_new(&string_hash_ops); |
1530 | if (!sip) | |
299d578f SS |
1531 | return -ENOMEM; |
1532 | ||
482d1aeb | 1533 | search_domains = ordered_set_new(&dns_name_hash_ops); |
3df9bec5 LP |
1534 | if (!search_domains) |
1535 | return -ENOMEM; | |
1536 | ||
482d1aeb | 1537 | route_domains = ordered_set_new(&dns_name_hash_ops); |
3df9bec5 | 1538 | if (!route_domains) |
84de38c5 TG |
1539 | return -ENOMEM; |
1540 | ||
1541 | HASHMAP_FOREACH(link, m->links, i) { | |
2a71d57f LP |
1542 | const struct in_addr *addresses; |
1543 | ||
84de38c5 TG |
1544 | if (link->flags & IFF_LOOPBACK) |
1545 | continue; | |
1546 | ||
1547 | if (link->operstate > operstate) | |
1548 | operstate = link->operstate; | |
1549 | ||
7f3c07ad YW |
1550 | if (link->carrier_state > carrier_state) |
1551 | carrier_state = link->carrier_state; | |
1552 | ||
1553 | if (link->address_state > address_state) | |
1554 | address_state = link->address_state; | |
1555 | ||
84de38c5 TG |
1556 | if (!link->network) |
1557 | continue; | |
1558 | ||
1559 | /* First add the static configured entries */ | |
5512a963 | 1560 | r = ordered_set_put_in_addr_datav(dns, link->network->dns, link->network->n_dns); |
84de38c5 TG |
1561 | if (r < 0) |
1562 | return r; | |
1563 | ||
15761549 | 1564 | r = ordered_set_put_strdupv(ntp, link->ntp ?: link->network->ntp); |
84de38c5 TG |
1565 | if (r < 0) |
1566 | return r; | |
1567 | ||
15761549 | 1568 | r = ordered_set_put_string_set(search_domains, link->search_domains ?: link->network->search_domains); |
3df9bec5 LP |
1569 | if (r < 0) |
1570 | return r; | |
1571 | ||
15761549 | 1572 | r = ordered_set_put_string_set(route_domains, link->route_domains ?: link->network->route_domains); |
84de38c5 TG |
1573 | if (r < 0) |
1574 | return r; | |
1575 | ||
1576 | if (!link->dhcp_lease) | |
1577 | continue; | |
1578 | ||
1579 | /* Secondly, add the entries acquired via DHCP */ | |
27cb34f5 | 1580 | if (link->network->dhcp_use_dns) { |
84de38c5 TG |
1581 | r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses); |
1582 | if (r > 0) { | |
072320ea | 1583 | r = ordered_set_put_in4_addrv(dns, addresses, r, in4_addr_is_non_local); |
84de38c5 TG |
1584 | if (r < 0) |
1585 | return r; | |
1586 | } else if (r < 0 && r != -ENODATA) | |
1587 | return r; | |
1588 | } | |
1589 | ||
27cb34f5 | 1590 | if (link->network->dhcp_use_ntp) { |
84de38c5 TG |
1591 | r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses); |
1592 | if (r > 0) { | |
072320ea | 1593 | r = ordered_set_put_in4_addrv(ntp, addresses, r, in4_addr_is_non_local); |
84de38c5 TG |
1594 | if (r < 0) |
1595 | return r; | |
1596 | } else if (r < 0 && r != -ENODATA) | |
1597 | return r; | |
1598 | } | |
1599 | ||
299d578f | 1600 | if (link->network->dhcp_use_sip) { |
299d578f SS |
1601 | r = sd_dhcp_lease_get_sip(link->dhcp_lease, &addresses); |
1602 | if (r > 0) { | |
1603 | r = ordered_set_put_in4_addrv(sip, addresses, r, in4_addr_is_non_local); | |
1604 | if (r < 0) | |
1605 | return r; | |
1606 | } else if (r < 0 && r != -ENODATA) | |
1607 | return r; | |
1608 | } | |
1609 | ||
b2a81c0b | 1610 | if (link->network->dhcp_use_domains != DHCP_USE_DOMAINS_NO) { |
84de38c5 | 1611 | const char *domainname; |
b85bc551 | 1612 | char **domains = NULL; |
84de38c5 | 1613 | |
b85bc551 | 1614 | OrderedSet *target_domains = (link->network->dhcp_use_domains == DHCP_USE_DOMAINS_YES) ? search_domains : route_domains; |
84de38c5 TG |
1615 | r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname); |
1616 | if (r >= 0) { | |
b85bc551 DW |
1617 | r = ordered_set_put_strdup(target_domains, domainname); |
1618 | if (r < 0) | |
1619 | return r; | |
1620 | } else if (r != -ENODATA) | |
1621 | return r; | |
b2a81c0b | 1622 | |
b85bc551 DW |
1623 | r = sd_dhcp_lease_get_search_domains(link->dhcp_lease, &domains); |
1624 | if (r >= 0) { | |
1625 | r = ordered_set_put_strdupv(target_domains, domains); | |
84de38c5 TG |
1626 | if (r < 0) |
1627 | return r; | |
1628 | } else if (r != -ENODATA) | |
1629 | return r; | |
1630 | } | |
1631 | } | |
1632 | ||
7f3c07ad YW |
1633 | if (carrier_state >= LINK_CARRIER_STATE_ENSLAVED) |
1634 | carrier_state = LINK_CARRIER_STATE_CARRIER; | |
1635 | ||
84de38c5 TG |
1636 | operstate_str = link_operstate_to_string(operstate); |
1637 | assert(operstate_str); | |
1638 | ||
ac999bf0 YW |
1639 | carrier_state_str = link_carrier_state_to_string(carrier_state); |
1640 | assert(carrier_state_str); | |
1641 | ||
1642 | address_state_str = link_address_state_to_string(address_state); | |
1643 | assert(address_state_str); | |
1644 | ||
84de38c5 TG |
1645 | r = fopen_temporary(m->state_file, &f, &temp_path); |
1646 | if (r < 0) | |
1647 | return r; | |
1648 | ||
5512a963 | 1649 | (void) fchmod(fileno(f), 0644); |
84de38c5 TG |
1650 | |
1651 | fprintf(f, | |
1652 | "# This is private data. Do not parse.\n" | |
ac999bf0 YW |
1653 | "OPER_STATE=%s\n" |
1654 | "CARRIER_STATE=%s\n" | |
1655 | "ADDRESS_STATE=%s\n", | |
1656 | operstate_str, carrier_state_str, address_state_str); | |
84de38c5 | 1657 | |
53ae3f64 ZJS |
1658 | ordered_set_print(f, "DNS=", dns); |
1659 | ordered_set_print(f, "NTP=", ntp); | |
299d578f | 1660 | ordered_set_print(f, "SIP=", sip); |
53ae3f64 ZJS |
1661 | ordered_set_print(f, "DOMAINS=", search_domains); |
1662 | ordered_set_print(f, "ROUTE_DOMAINS=", route_domains); | |
84de38c5 | 1663 | |
458d8ae3 ZJS |
1664 | r = routing_policy_serialize_rules(m->rules, f); |
1665 | if (r < 0) | |
1666 | goto fail; | |
bce67bbe | 1667 | |
84de38c5 TG |
1668 | r = fflush_and_check(f); |
1669 | if (r < 0) | |
1670 | goto fail; | |
1671 | ||
1672 | if (rename(temp_path, m->state_file) < 0) { | |
1673 | r = -errno; | |
1674 | goto fail; | |
1675 | } | |
1676 | ||
1677 | if (m->operational_state != operstate) { | |
1678 | m->operational_state = operstate; | |
7f3c07ad YW |
1679 | if (strv_extend(&p, "OperationalState") < 0) |
1680 | log_oom(); | |
1681 | } | |
1682 | ||
1683 | if (m->carrier_state != carrier_state) { | |
1684 | m->carrier_state = carrier_state; | |
1685 | if (strv_extend(&p, "CarrierState") < 0) | |
1686 | log_oom(); | |
1687 | } | |
1688 | ||
1689 | if (m->address_state != address_state) { | |
1690 | m->address_state = address_state; | |
1691 | if (strv_extend(&p, "AddressState") < 0) | |
1692 | log_oom(); | |
1693 | } | |
1694 | ||
1695 | if (p) { | |
1696 | r = manager_send_changed_strv(m, p); | |
84de38c5 | 1697 | if (r < 0) |
7f3c07ad | 1698 | log_error_errno(r, "Could not emit changed properties: %m"); |
84de38c5 TG |
1699 | } |
1700 | ||
1701 | m->dirty = false; | |
1702 | ||
1703 | return 0; | |
1704 | ||
1705 | fail: | |
1706 | (void) unlink(m->state_file); | |
1707 | (void) unlink(temp_path); | |
1708 | ||
1709 | return log_error_errno(r, "Failed to save network state to %s: %m", m->state_file); | |
1710 | } | |
1711 | ||
1712 | static int manager_dirty_handler(sd_event_source *s, void *userdata) { | |
1713 | Manager *m = userdata; | |
1714 | Link *link; | |
1715 | Iterator i; | |
84de38c5 TG |
1716 | |
1717 | assert(m); | |
1718 | ||
1719 | if (m->dirty) | |
1720 | manager_save(m); | |
1721 | ||
a0e8e4cf YW |
1722 | SET_FOREACH(link, m->dirty_links, i) |
1723 | if (link_save(link) >= 0) | |
84de38c5 | 1724 | link_clean(link); |
84de38c5 TG |
1725 | |
1726 | return 1; | |
1727 | } | |
1728 | ||
ab76be55 ZJS |
1729 | static int signal_terminate_callback(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { |
1730 | Manager *m = userdata; | |
1731 | ||
1732 | assert(m); | |
1733 | m->restarting = false; | |
1734 | ||
1735 | log_debug("Terminate operation initiated."); | |
1736 | ||
1737 | return sd_event_exit(sd_event_source_get_event(s), 0); | |
1738 | } | |
1739 | ||
1740 | static int signal_restart_callback(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { | |
1741 | Manager *m = userdata; | |
1742 | ||
1743 | assert(m); | |
1744 | m->restarting = true; | |
1745 | ||
1746 | log_debug("Restart operation initiated."); | |
1747 | ||
1748 | return sd_event_exit(sd_event_source_get_event(s), 0); | |
1749 | } | |
1750 | ||
3534a043 | 1751 | int manager_new(Manager **ret) { |
8e766630 | 1752 | _cleanup_(manager_freep) Manager *m = NULL; |
45af44d4 | 1753 | int r; |
f579559b | 1754 | |
a879e1a4 | 1755 | m = new(Manager, 1); |
5fae368b TG |
1756 | if (!m) |
1757 | return -ENOMEM; | |
45af44d4 | 1758 | |
a879e1a4 YW |
1759 | *m = (Manager) { |
1760 | .speed_meter_interval_usec = SPEED_METER_DEFAULT_TIME_INTERVAL, | |
5d3b8017 | 1761 | .manage_foreign_routes = true, |
c643bda5 | 1762 | .ethtool_fd = -1, |
a879e1a4 YW |
1763 | }; |
1764 | ||
5fae368b TG |
1765 | m->state_file = strdup("/run/systemd/netif/state"); |
1766 | if (!m->state_file) | |
1767 | return -ENOMEM; | |
1768 | ||
3534a043 YW |
1769 | r = sd_event_default(&m->event); |
1770 | if (r < 0) | |
1771 | return r; | |
1772 | ||
ab76be55 ZJS |
1773 | assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, SIGUSR2, -1) >= 0); |
1774 | ||
05e21627 | 1775 | (void) sd_event_set_watchdog(m->event, true); |
ab76be55 ZJS |
1776 | (void) sd_event_add_signal(m->event, NULL, SIGTERM, signal_terminate_callback, m); |
1777 | (void) sd_event_add_signal(m->event, NULL, SIGINT, signal_terminate_callback, m); | |
1778 | (void) sd_event_add_signal(m->event, NULL, SIGUSR2, signal_restart_callback, m); | |
5fae368b | 1779 | |
84de38c5 TG |
1780 | r = sd_event_add_post(m->event, NULL, manager_dirty_handler, m); |
1781 | if (r < 0) | |
1782 | return r; | |
1783 | ||
5fae368b | 1784 | r = manager_connect_rtnl(m); |
45af44d4 TG |
1785 | if (r < 0) |
1786 | return r; | |
1787 | ||
05d0c2e3 JT |
1788 | r = manager_connect_genl(m); |
1789 | if (r < 0) | |
1790 | return r; | |
1791 | ||
5fae368b TG |
1792 | r = manager_connect_udev(m); |
1793 | if (r < 0) | |
1794 | return r; | |
45af44d4 | 1795 | |
05d0c2e3 JT |
1796 | r = sd_resolve_default(&m->resolve); |
1797 | if (r < 0) | |
1798 | return r; | |
1799 | ||
1800 | r = sd_resolve_attach_event(m->resolve, m->event, 0); | |
1801 | if (r < 0) | |
1802 | return r; | |
1803 | ||
5fae368b TG |
1804 | r = setup_default_address_pool(m); |
1805 | if (r < 0) | |
1806 | return r; | |
f579559b | 1807 | |
8341a5c3 | 1808 | m->duid.type = DUID_TYPE_EN; |
413708d1 | 1809 | |
458d8ae3 | 1810 | (void) routing_policy_load_rules(m->state_file, &m->rules_saved); |
bce67bbe | 1811 | |
1cc6c93a | 1812 | *ret = TAKE_PTR(m); |
f579559b | 1813 | |
f579559b TG |
1814 | return 0; |
1815 | } | |
1816 | ||
5fae368b | 1817 | void manager_free(Manager *m) { |
2c448c8a | 1818 | struct in6_addr *a; |
c4397d94 | 1819 | AddressPool *pool; |
5fae368b | 1820 | Link *link; |
f579559b | 1821 | |
5fae368b TG |
1822 | if (!m) |
1823 | return; | |
505f8da7 | 1824 | |
5fae368b | 1825 | free(m->state_file); |
505f8da7 | 1826 | |
2c448c8a | 1827 | while ((a = hashmap_first_key(m->dhcp6_prefixes))) |
04ed9949 | 1828 | (void) dhcp6_prefix_remove(m, a); |
26a65470 | 1829 | m->dhcp6_prefixes = hashmap_free(m->dhcp6_prefixes); |
e133b289 | 1830 | |
f61365e5 | 1831 | while ((link = hashmap_steal_first(m->links))) { |
65dd5e31 | 1832 | if (link->dhcp6_client) |
f61365e5 | 1833 | (void) dhcp6_lease_pd_prefix_lost(link->dhcp6_client, link); |
946f8e14 | 1834 | |
95355a28 | 1835 | (void) link_stop_clients(link, true); |
946f8e14 | 1836 | |
5fae368b | 1837 | link_unref(link); |
65dd5e31 | 1838 | } |
f579559b | 1839 | |
c4397d94 | 1840 | m->dirty_links = set_free_with_destructor(m->dirty_links, link_unref); |
5f707e12 YW |
1841 | m->links_requesting_uuid = set_free_with_destructor(m->links_requesting_uuid, link_unref); |
1842 | m->links = hashmap_free_with_destructor(m->links, link_unref); | |
27dfc982 | 1843 | |
5f707e12 | 1844 | m->duids_requesting_uuid = set_free(m->duids_requesting_uuid); |
715d398e | 1845 | m->networks = ordered_hashmap_free_with_destructor(m->networks, network_unref); |
dbffab87 | 1846 | |
c4397d94 | 1847 | m->netdevs = hashmap_free_with_destructor(m->netdevs, netdev_unref); |
5fae368b TG |
1848 | |
1849 | while ((pool = m->address_pools)) | |
1850 | address_pool_free(pool); | |
1851 | ||
f19ee681 YW |
1852 | /* routing_policy_rule_free() access m->rules and m->rules_foreign. |
1853 | * So, it is necessary to set NULL after the sets are freed. */ | |
1854 | m->rules = set_free_with_destructor(m->rules, routing_policy_rule_free); | |
1855 | m->rules_foreign = set_free_with_destructor(m->rules_foreign, routing_policy_rule_free); | |
b921fcb2 | 1856 | set_free_with_destructor(m->rules_saved, routing_policy_rule_free); |
bce67bbe | 1857 | |
d4df6326 SS |
1858 | sd_netlink_unref(m->rtnl); |
1859 | sd_netlink_unref(m->genl); | |
1860 | sd_resolve_unref(m->resolve); | |
1861 | ||
a879e1a4 | 1862 | sd_event_source_unref(m->speed_meter_event_source); |
2f5b4a77 | 1863 | sd_event_unref(m->event); |
5fae368b | 1864 | |
d2ebf952 | 1865 | sd_device_monitor_unref(m->device_monitor); |
7d20d375 | 1866 | |
15761549 | 1867 | bus_verify_polkit_async_registry_free(m->polkit_registry); |
92e31da1 | 1868 | sd_bus_flush_close_unref(m->bus); |
7d20d375 | 1869 | |
7901cea1 MP |
1870 | free(m->dynamic_timezone); |
1871 | free(m->dynamic_hostname); | |
1872 | ||
c643bda5 YW |
1873 | safe_close(m->ethtool_fd); |
1874 | ||
5fae368b TG |
1875 | free(m); |
1876 | } | |
1877 | ||
b76d99d9 | 1878 | int manager_start(Manager *m) { |
84de38c5 TG |
1879 | Link *link; |
1880 | Iterator i; | |
a879e1a4 | 1881 | int r; |
84de38c5 | 1882 | |
a97dcc12 TG |
1883 | assert(m); |
1884 | ||
a879e1a4 YW |
1885 | r = manager_start_speed_meter(m); |
1886 | if (r < 0) | |
1887 | return log_error_errno(r, "Failed to initialize speed meter: %m"); | |
1888 | ||
84de38c5 TG |
1889 | /* The dirty handler will deal with future serialization, but the first one |
1890 | must be done explicitly. */ | |
1891 | ||
1892 | manager_save(m); | |
1893 | ||
1894 | HASHMAP_FOREACH(link, m->links, i) | |
1895 | link_save(link); | |
1896 | ||
b76d99d9 | 1897 | return 0; |
a97dcc12 TG |
1898 | } |
1899 | ||
5fae368b TG |
1900 | int manager_load_config(Manager *m) { |
1901 | int r; | |
1902 | ||
1903 | /* update timestamp */ | |
dc0d4078 | 1904 | paths_check_timestamp(NETWORK_DIRS, &m->network_dirs_ts_usec, true); |
5fae368b | 1905 | |
e272b621 | 1906 | r = netdev_load(m, false); |
f579559b TG |
1907 | if (r < 0) |
1908 | return r; | |
1909 | ||
7f06b3e1 | 1910 | r = network_load(m, &m->networks); |
9021bb9f TG |
1911 | if (r < 0) |
1912 | return r; | |
1913 | ||
f579559b TG |
1914 | return 0; |
1915 | } | |
f882c247 | 1916 | |
5fae368b | 1917 | bool manager_should_reload(Manager *m) { |
dc0d4078 | 1918 | return paths_check_timestamp(NETWORK_DIRS, &m->network_dirs_ts_usec, false); |
5fae368b TG |
1919 | } |
1920 | ||
1921 | int manager_rtnl_enumerate_links(Manager *m) { | |
4afd3348 | 1922 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; |
1c4baffc | 1923 | sd_netlink_message *link; |
f882c247 TG |
1924 | int r; |
1925 | ||
5da8149f | 1926 | assert(m); |
5fae368b | 1927 | assert(m->rtnl); |
5da8149f | 1928 | |
5fae368b | 1929 | r = sd_rtnl_message_new_link(m->rtnl, &req, RTM_GETLINK, 0); |
f882c247 TG |
1930 | if (r < 0) |
1931 | return r; | |
1932 | ||
1c4baffc | 1933 | r = sd_netlink_message_request_dump(req, true); |
dd3efc09 TG |
1934 | if (r < 0) |
1935 | return r; | |
1936 | ||
1c4baffc | 1937 | r = sd_netlink_call(m->rtnl, req, 0, &reply); |
f2236469 TG |
1938 | if (r < 0) |
1939 | return r; | |
1940 | ||
1c4baffc | 1941 | for (link = reply; link; link = sd_netlink_message_next(link)) { |
5fae368b | 1942 | int k; |
2e9f08ea | 1943 | |
6a24f148 TG |
1944 | m->enumerating = true; |
1945 | ||
5fae368b TG |
1946 | k = manager_rtnl_process_link(m->rtnl, link, m); |
1947 | if (k < 0) | |
1948 | r = k; | |
6a24f148 TG |
1949 | |
1950 | m->enumerating = false; | |
5fae368b | 1951 | } |
2e9f08ea | 1952 | |
5fae368b | 1953 | return r; |
f882c247 | 1954 | } |
3bef724f | 1955 | |
5fae368b | 1956 | int manager_rtnl_enumerate_addresses(Manager *m) { |
4afd3348 | 1957 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; |
1c4baffc | 1958 | sd_netlink_message *addr; |
1346b1f0 TG |
1959 | int r; |
1960 | ||
5fae368b TG |
1961 | assert(m); |
1962 | assert(m->rtnl); | |
bcbca829 | 1963 | |
5fae368b TG |
1964 | r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, 0, 0); |
1965 | if (r < 0) | |
1966 | return r; | |
bcbca829 | 1967 | |
1c4baffc | 1968 | r = sd_netlink_message_request_dump(req, true); |
1346b1f0 TG |
1969 | if (r < 0) |
1970 | return r; | |
1971 | ||
1c4baffc | 1972 | r = sd_netlink_call(m->rtnl, req, 0, &reply); |
5fae368b TG |
1973 | if (r < 0) |
1974 | return r; | |
1975 | ||
1c4baffc | 1976 | for (addr = reply; addr; addr = sd_netlink_message_next(addr)) { |
5fae368b TG |
1977 | int k; |
1978 | ||
6a24f148 TG |
1979 | m->enumerating = true; |
1980 | ||
200a0868 | 1981 | k = manager_rtnl_process_address(m->rtnl, addr, m); |
5fae368b TG |
1982 | if (k < 0) |
1983 | r = k; | |
6a24f148 TG |
1984 | |
1985 | m->enumerating = false; | |
5fae368b TG |
1986 | } |
1987 | ||
1988 | return r; | |
1346b1f0 | 1989 | } |
d1bdafd2 WKI |
1990 | |
1991 | int manager_rtnl_enumerate_neighbors(Manager *m) { | |
1992 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; | |
1993 | sd_netlink_message *neigh; | |
1994 | int r; | |
1995 | ||
1996 | assert(m); | |
1997 | assert(m->rtnl); | |
1998 | ||
1999 | r = sd_rtnl_message_new_neigh(m->rtnl, &req, RTM_GETNEIGH, 0, AF_UNSPEC); | |
2000 | if (r < 0) | |
2001 | return r; | |
2002 | ||
2003 | r = sd_netlink_message_request_dump(req, true); | |
2004 | if (r < 0) | |
2005 | return r; | |
2006 | ||
2007 | r = sd_netlink_call(m->rtnl, req, 0, &reply); | |
2008 | if (r < 0) | |
2009 | return r; | |
2010 | ||
2011 | for (neigh = reply; neigh; neigh = sd_netlink_message_next(neigh)) { | |
2012 | int k; | |
2013 | ||
2014 | m->enumerating = true; | |
2015 | ||
2016 | k = manager_rtnl_process_neighbor(m->rtnl, neigh, m); | |
2017 | if (k < 0) | |
2018 | r = k; | |
2019 | ||
2020 | m->enumerating = false; | |
2021 | } | |
2022 | ||
2023 | return r; | |
2024 | } | |
1346b1f0 | 2025 | |
1c8e710c | 2026 | int manager_rtnl_enumerate_routes(Manager *m) { |
4afd3348 | 2027 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; |
1c8e710c TG |
2028 | sd_netlink_message *route; |
2029 | int r; | |
2030 | ||
2031 | assert(m); | |
2032 | assert(m->rtnl); | |
2033 | ||
2034 | r = sd_rtnl_message_new_route(m->rtnl, &req, RTM_GETROUTE, 0, 0); | |
2035 | if (r < 0) | |
2036 | return r; | |
2037 | ||
2038 | r = sd_netlink_message_request_dump(req, true); | |
2039 | if (r < 0) | |
2040 | return r; | |
2041 | ||
2042 | r = sd_netlink_call(m->rtnl, req, 0, &reply); | |
2043 | if (r < 0) | |
2044 | return r; | |
2045 | ||
2046 | for (route = reply; route; route = sd_netlink_message_next(route)) { | |
2047 | int k; | |
2048 | ||
2049 | m->enumerating = true; | |
2050 | ||
2051 | k = manager_rtnl_process_route(m->rtnl, route, m); | |
2052 | if (k < 0) | |
2053 | r = k; | |
2054 | ||
2055 | m->enumerating = false; | |
2056 | } | |
2057 | ||
2058 | return r; | |
2059 | } | |
2060 | ||
bce67bbe SS |
2061 | int manager_rtnl_enumerate_rules(Manager *m) { |
2062 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; | |
2063 | sd_netlink_message *rule; | |
2064 | int r; | |
2065 | ||
2066 | assert(m); | |
2067 | assert(m->rtnl); | |
2068 | ||
2069 | r = sd_rtnl_message_new_routing_policy_rule(m->rtnl, &req, RTM_GETRULE, 0); | |
2070 | if (r < 0) | |
2071 | return r; | |
2072 | ||
2073 | r = sd_netlink_message_request_dump(req, true); | |
2074 | if (r < 0) | |
2075 | return r; | |
2076 | ||
2077 | r = sd_netlink_call(m->rtnl, req, 0, &reply); | |
6acbbdd4 SS |
2078 | if (r < 0) { |
2079 | if (r == -EOPNOTSUPP) { | |
2080 | log_debug("FIB Rules are not supported by the kernel. Ignoring."); | |
2081 | return 0; | |
2082 | } | |
2083 | ||
bce67bbe | 2084 | return r; |
6acbbdd4 | 2085 | } |
bce67bbe SS |
2086 | |
2087 | for (rule = reply; rule; rule = sd_netlink_message_next(rule)) { | |
2088 | int k; | |
2089 | ||
2090 | m->enumerating = true; | |
2091 | ||
2092 | k = manager_rtnl_process_rule(m->rtnl, rule, m); | |
2093 | if (k < 0) | |
2094 | r = k; | |
2095 | ||
2096 | m->enumerating = false; | |
2097 | } | |
2098 | ||
2099 | return r; | |
2100 | } | |
2101 | ||
c16c7808 SS |
2102 | int manager_rtnl_enumerate_nexthop(Manager *m) { |
2103 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; | |
2104 | sd_netlink_message *nexthop; | |
2105 | int r; | |
2106 | ||
2107 | assert(m); | |
2108 | assert(m->rtnl); | |
2109 | ||
2110 | r = sd_rtnl_message_new_nexthop(m->rtnl, &req, RTM_GETNEXTHOP, 0, 0); | |
2111 | if (r < 0) | |
2112 | return r; | |
2113 | ||
2114 | r = sd_netlink_message_request_dump(req, true); | |
2115 | if (r < 0) | |
2116 | return r; | |
2117 | ||
2118 | r = sd_netlink_call(m->rtnl, req, 0, &reply); | |
2119 | if (r < 0) { | |
2120 | if (r == -EOPNOTSUPP) { | |
2121 | log_debug("Nexthop are not supported by the kernel. Ignoring."); | |
2122 | return 0; | |
2123 | } | |
2124 | ||
2125 | return r; | |
2126 | } | |
2127 | ||
2128 | for (nexthop = reply; nexthop; nexthop = sd_netlink_message_next(nexthop)) { | |
2129 | int k; | |
2130 | ||
2131 | m->enumerating = true; | |
2132 | ||
2133 | k = manager_rtnl_process_nexthop(m->rtnl, nexthop, m); | |
2134 | if (k < 0) | |
2135 | r = k; | |
2136 | ||
2137 | m->enumerating = false; | |
2138 | } | |
2139 | ||
2140 | return r; | |
2141 | } | |
2142 | ||
0dd25fb9 | 2143 | int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found) { |
11bf3cce LP |
2144 | AddressPool *p; |
2145 | int r; | |
2146 | ||
2147 | assert(m); | |
2148 | assert(prefixlen > 0); | |
2149 | assert(found); | |
2150 | ||
2151 | LIST_FOREACH(address_pools, p, m->address_pools) { | |
2152 | if (p->family != family) | |
2153 | continue; | |
2154 | ||
2155 | r = address_pool_acquire(p, prefixlen, found); | |
2156 | if (r != 0) | |
2157 | return r; | |
2158 | } | |
2159 | ||
2160 | return 0; | |
2161 | } | |
4f5f911e LP |
2162 | |
2163 | Link* manager_find_uplink(Manager *m, Link *exclude) { | |
2164 | _cleanup_free_ struct local_address *gateways = NULL; | |
2165 | int n, i; | |
2166 | ||
2167 | assert(m); | |
2168 | ||
2169 | /* Looks for a suitable "uplink", via black magic: an | |
2170 | * interface that is up and where the default route with the | |
2171 | * highest priority points to. */ | |
2172 | ||
2173 | n = local_gateways(m->rtnl, 0, AF_UNSPEC, &gateways); | |
2174 | if (n < 0) { | |
2175 | log_warning_errno(n, "Failed to determine list of default gateways: %m"); | |
2176 | return NULL; | |
2177 | } | |
2178 | ||
2179 | for (i = 0; i < n; i++) { | |
2180 | Link *link; | |
2181 | ||
2182 | link = hashmap_get(m->links, INT_TO_PTR(gateways[i].ifindex)); | |
2183 | if (!link) { | |
c2c940bd | 2184 | log_debug("Weird, found a gateway for a link we don't know. Ignoring."); |
4f5f911e LP |
2185 | continue; |
2186 | } | |
2187 | ||
2188 | if (link == exclude) | |
2189 | continue; | |
2190 | ||
2191 | if (link->operstate < LINK_OPERSTATE_ROUTABLE) | |
2192 | continue; | |
2193 | ||
2194 | return link; | |
2195 | } | |
2196 | ||
2197 | return NULL; | |
2198 | } | |
84de38c5 TG |
2199 | |
2200 | void manager_dirty(Manager *manager) { | |
2201 | assert(manager); | |
2202 | ||
2203 | /* the serialized state in /run is no longer up-to-date */ | |
2204 | manager->dirty = true; | |
2205 | } | |
59eb33e0 MP |
2206 | |
2207 | static int set_hostname_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { | |
0a0e594a | 2208 | _unused_ Manager *manager = userdata; |
59eb33e0 MP |
2209 | const sd_bus_error *e; |
2210 | ||
2211 | assert(m); | |
2212 | assert(manager); | |
2213 | ||
2214 | e = sd_bus_message_get_error(m); | |
2215 | if (e) | |
2216 | log_warning_errno(sd_bus_error_get_errno(e), "Could not set hostname: %s", e->message); | |
2217 | ||
2218 | return 1; | |
2219 | } | |
2220 | ||
2221 | int manager_set_hostname(Manager *m, const char *hostname) { | |
2222 | int r; | |
2223 | ||
2224 | log_debug("Setting transient hostname: '%s'", strna(hostname)); | |
d7afd945 | 2225 | |
7901cea1 MP |
2226 | if (free_and_strdup(&m->dynamic_hostname, hostname) < 0) |
2227 | return log_oom(); | |
59eb33e0 | 2228 | |
d7afd945 | 2229 | if (!m->bus || sd_bus_is_ready(m->bus) <= 0) { |
e0d95f03 | 2230 | log_debug("Not connected to system bus, setting hostname later."); |
59eb33e0 MP |
2231 | return 0; |
2232 | } | |
2233 | ||
2234 | r = sd_bus_call_method_async( | |
2235 | m->bus, | |
2236 | NULL, | |
2237 | "org.freedesktop.hostname1", | |
2238 | "/org/freedesktop/hostname1", | |
2239 | "org.freedesktop.hostname1", | |
2240 | "SetHostname", | |
2241 | set_hostname_handler, | |
2242 | m, | |
2243 | "sb", | |
2244 | hostname, | |
2245 | false); | |
2246 | ||
2247 | if (r < 0) | |
2248 | return log_error_errno(r, "Could not set transient hostname: %m"); | |
2249 | ||
2250 | return 0; | |
2251 | } | |
2252 | ||
2253 | static int set_timezone_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { | |
0a0e594a | 2254 | _unused_ Manager *manager = userdata; |
59eb33e0 MP |
2255 | const sd_bus_error *e; |
2256 | ||
2257 | assert(m); | |
2258 | assert(manager); | |
2259 | ||
2260 | e = sd_bus_message_get_error(m); | |
2261 | if (e) | |
2262 | log_warning_errno(sd_bus_error_get_errno(e), "Could not set timezone: %s", e->message); | |
2263 | ||
2264 | return 1; | |
2265 | } | |
2266 | ||
2267 | int manager_set_timezone(Manager *m, const char *tz) { | |
2268 | int r; | |
2269 | ||
2270 | assert(m); | |
2271 | assert(tz); | |
2272 | ||
2273 | log_debug("Setting system timezone: '%s'", tz); | |
7901cea1 MP |
2274 | if (free_and_strdup(&m->dynamic_timezone, tz) < 0) |
2275 | return log_oom(); | |
59eb33e0 | 2276 | |
d7afd945 | 2277 | if (!m->bus || sd_bus_is_ready(m->bus) <= 0) { |
e0d95f03 | 2278 | log_debug("Not connected to system bus, setting timezone later."); |
59eb33e0 MP |
2279 | return 0; |
2280 | } | |
2281 | ||
2282 | r = sd_bus_call_method_async( | |
2283 | m->bus, | |
2284 | NULL, | |
2285 | "org.freedesktop.timedate1", | |
2286 | "/org/freedesktop/timedate1", | |
2287 | "org.freedesktop.timedate1", | |
2288 | "SetTimezone", | |
2289 | set_timezone_handler, | |
2290 | m, | |
2291 | "sb", | |
2292 | tz, | |
2293 | false); | |
2294 | if (r < 0) | |
2295 | return log_error_errno(r, "Could not set timezone: %m"); | |
2296 | ||
2297 | return 0; | |
2298 | } | |
27dfc982 YW |
2299 | |
2300 | int manager_request_product_uuid(Manager *m, Link *link) { | |
2301 | int r; | |
2302 | ||
2303 | assert(m); | |
2304 | ||
2305 | if (m->has_product_uuid) | |
2306 | return 0; | |
2307 | ||
2308 | log_debug("Requesting product UUID"); | |
2309 | ||
2310 | if (link) { | |
2311 | DUID *duid; | |
2312 | ||
2313 | assert_se(duid = link_get_duid(link)); | |
2314 | ||
de7fef4b | 2315 | r = set_ensure_put(&m->links_requesting_uuid, NULL, link); |
27dfc982 YW |
2316 | if (r < 0) |
2317 | return log_oom(); | |
39dbd0c7 ZJS |
2318 | if (r > 0) |
2319 | link_ref(link); | |
27dfc982 | 2320 | |
de7fef4b | 2321 | r = set_ensure_put(&m->duids_requesting_uuid, NULL, duid); |
27dfc982 YW |
2322 | if (r < 0) |
2323 | return log_oom(); | |
2324 | } | |
2325 | ||
2326 | if (!m->bus || sd_bus_is_ready(m->bus) <= 0) { | |
2327 | log_debug("Not connected to system bus, requesting product UUID later."); | |
2328 | return 0; | |
2329 | } | |
2330 | ||
2331 | r = sd_bus_call_method_async( | |
2332 | m->bus, | |
2333 | NULL, | |
2334 | "org.freedesktop.hostname1", | |
2335 | "/org/freedesktop/hostname1", | |
2336 | "org.freedesktop.hostname1", | |
2337 | "GetProductUUID", | |
2338 | get_product_uuid_handler, | |
2339 | m, | |
2340 | "b", | |
2341 | false); | |
2342 | if (r < 0) | |
2343 | return log_warning_errno(r, "Failed to get product UUID: %m"); | |
2344 | ||
2345 | return 0; | |
2346 | } |