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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
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" |
bfbf150e | 27 | #include "networkd-address-pool.h" |
cf72a786 | 28 | #include "networkd-dhcp-server-bus.h" |
ca5ad760 | 29 | #include "networkd-dhcp6.h" |
6a1af3d4 | 30 | #include "networkd-link-bus.h" |
79a59fa5 | 31 | #include "networkd-manager-bus.h" |
23f53b99 | 32 | #include "networkd-manager.h" |
1939ebeb | 33 | #include "networkd-neighbor.h" |
ceac2c2b | 34 | #include "networkd-network-bus.h" |
75156ccb | 35 | #include "networkd-nexthop.h" |
ca183bf8 | 36 | #include "networkd-routing-policy-rule.h" |
a879e1a4 | 37 | #include "networkd-speed-meter.h" |
00616955 | 38 | #include "ordered-set.h" |
b0c82192 | 39 | #include "path-lookup.h" |
07630cea | 40 | #include "path-util.h" |
92b555aa | 41 | #include "selinux-util.h" |
07630cea | 42 | #include "set.h" |
ab76be55 | 43 | #include "signal-util.h" |
d31f33e3 | 44 | #include "stat-util.h" |
21486d9e | 45 | #include "strv.h" |
4b600505 | 46 | #include "sysctl-util.h" |
e4de7287 | 47 | #include "tmpfile-util.h" |
299ad32d | 48 | #include "udev-util.h" |
505f8da7 | 49 | |
48d0248e YW |
50 | /* use 128 MB for receive socket kernel queue. */ |
51 | #define RCVBUF_SIZE (128*1024*1024) | |
be660c37 | 52 | |
9c0a72f9 TG |
53 | static int manager_reset_all(Manager *m) { |
54 | Link *link; | |
9c0a72f9 TG |
55 | int r; |
56 | ||
57 | assert(m); | |
58 | ||
90e74a66 | 59 | HASHMAP_FOREACH(link, m->links) { |
9c0a72f9 TG |
60 | r = link_carrier_reset(link); |
61 | if (r < 0) | |
2f3cf1f9 | 62 | log_link_warning_errno(link, r, "Could not reset carrier: %m"); |
9c0a72f9 TG |
63 | } |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
19070062 | 68 | static int match_prepare_for_sleep(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) { |
9c0a72f9 TG |
69 | Manager *m = userdata; |
70 | int b, r; | |
71 | ||
19070062 | 72 | assert(message); |
d7afd945 | 73 | assert(m); |
9c0a72f9 TG |
74 | |
75 | r = sd_bus_message_read(message, "b", &b); | |
76 | if (r < 0) { | |
d67b1d18 | 77 | bus_log_parse_error(r); |
9c0a72f9 TG |
78 | return 0; |
79 | } | |
80 | ||
81 | if (b) | |
82 | return 0; | |
83 | ||
84 | log_debug("Coming back from suspend, resetting all connections..."); | |
85 | ||
e1694a75 | 86 | (void) manager_reset_all(m); |
9c0a72f9 TG |
87 | |
88 | return 0; | |
89 | } | |
90 | ||
d7afd945 LP |
91 | static int on_connected(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) { |
92 | Manager *m = userdata; | |
9c0a72f9 | 93 | |
d7afd945 | 94 | assert(message); |
9c0a72f9 TG |
95 | assert(m); |
96 | ||
d7afd945 LP |
97 | /* Did we get a timezone or transient hostname from DHCP while D-Bus wasn't up yet? */ |
98 | if (m->dynamic_hostname) | |
99 | (void) manager_set_hostname(m, m->dynamic_hostname); | |
100 | if (m->dynamic_timezone) | |
101 | (void) manager_set_timezone(m, m->dynamic_timezone); | |
27dfc982 YW |
102 | if (m->links_requesting_uuid) |
103 | (void) manager_request_product_uuid(m, NULL); | |
9c0a72f9 | 104 | |
d7afd945 LP |
105 | return 0; |
106 | } | |
9c0a72f9 | 107 | |
d7afd945 LP |
108 | int manager_connect_bus(Manager *m) { |
109 | int r; | |
110 | ||
111 | assert(m); | |
9c0a72f9 | 112 | |
d7afd945 | 113 | if (m->bus) |
9c0a72f9 | 114 | return 0; |
7d6884b6 | 115 | |
621e4509 | 116 | r = bus_open_system_watch_bind_with_description(&m->bus, "bus-api-network"); |
9c0a72f9 | 117 | if (r < 0) |
d7afd945 | 118 | return log_error_errno(r, "Failed to connect to bus: %m"); |
9c0a72f9 | 119 | |
e331e246 TG |
120 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/network1", "org.freedesktop.network1.Manager", manager_vtable, m); |
121 | if (r < 0) | |
122 | return log_error_errno(r, "Failed to add manager object vtable: %m"); | |
123 | ||
124 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/link", "org.freedesktop.network1.Link", link_vtable, link_object_find, m); | |
125 | if (r < 0) | |
126 | return log_error_errno(r, "Failed to add link object vtable: %m"); | |
127 | ||
cf72a786 MAL |
128 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/link", "org.freedesktop.network1.DHCPServer", dhcp_server_vtable, link_object_find, m); |
129 | if (r < 0) | |
130 | return log_error_errno(r, "Failed to add link object vtable: %m"); | |
131 | ||
e331e246 TG |
132 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/network1/link", link_node_enumerator, m); |
133 | if (r < 0) | |
134 | return log_error_errno(r, "Failed to add link enumerator: %m"); | |
3175fcde TG |
135 | |
136 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/network1/network", "org.freedesktop.network1.Network", network_vtable, network_object_find, m); | |
137 | if (r < 0) | |
138 | return log_error_errno(r, "Failed to add network object vtable: %m"); | |
139 | ||
140 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/network1/network", network_node_enumerator, m); | |
141 | if (r < 0) | |
142 | return log_error_errno(r, "Failed to add network enumerator: %m"); | |
e331e246 | 143 | |
ac9f55ed LP |
144 | r = bus_log_control_api_register(m->bus); |
145 | if (r < 0) | |
146 | return r; | |
147 | ||
696fc836 | 148 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.network1", 0, NULL, NULL); |
e331e246 | 149 | if (r < 0) |
0c0b9306 | 150 | return log_error_errno(r, "Failed to request name: %m"); |
e331e246 TG |
151 | |
152 | r = sd_bus_attach_event(m->bus, m->event, 0); | |
153 | if (r < 0) | |
154 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
155 | ||
d7afd945 LP |
156 | r = sd_bus_match_signal_async( |
157 | m->bus, | |
cad43595 | 158 | NULL, |
d7afd945 LP |
159 | "org.freedesktop.DBus.Local", |
160 | NULL, | |
161 | "org.freedesktop.DBus.Local", | |
162 | "Connected", | |
163 | on_connected, NULL, m); | |
164 | if (r < 0) | |
165 | return log_error_errno(r, "Failed to request match on Connected signal: %m"); | |
166 | ||
167 | r = sd_bus_match_signal_async( | |
168 | m->bus, | |
cad43595 | 169 | NULL, |
d7afd945 LP |
170 | "org.freedesktop.login1", |
171 | "/org/freedesktop/login1", | |
172 | "org.freedesktop.login1.Manager", | |
173 | "PrepareForSleep", | |
174 | match_prepare_for_sleep, NULL, m); | |
175 | if (r < 0) | |
176 | log_warning_errno(r, "Failed to request match for PrepareForSleep, ignoring: %m"); | |
7901cea1 | 177 | |
9c0a72f9 TG |
178 | return 0; |
179 | } | |
180 | ||
d2ebf952 YW |
181 | static int manager_udev_process_link(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
182 | Manager *m = userdata; | |
a7f95575 | 183 | DeviceAction action; |
5fae368b TG |
184 | Link *link = NULL; |
185 | int r, ifindex; | |
5544ee85 | 186 | |
5fae368b TG |
187 | assert(m); |
188 | assert(device); | |
5544ee85 | 189 | |
a7f95575 | 190 | r = device_get_action(device, &action); |
21486d9e | 191 | if (r < 0) { |
a7f95575 | 192 | log_device_debug_errno(device, r, "Failed to get udev action, ignoring device: %m"); |
5fae368b | 193 | return 0; |
21486d9e YW |
194 | } |
195 | ||
cd17bb6e LP |
196 | /* Ignore the "remove" uevent — let's remove a device only if rtnetlink says so. All other uevents |
197 | * are "positive" events in some form, i.e. inform us about a changed or new network interface, that | |
198 | * still exists — and we are interested in that. */ | |
199 | if (action == DEVICE_ACTION_REMOVE) | |
21486d9e | 200 | return 0; |
5544ee85 | 201 | |
51517f9e | 202 | r = sd_device_get_ifindex(device, &ifindex); |
7606377e | 203 | if (r < 0) { |
cd17bb6e LP |
204 | log_device_debug_errno(device, r, "Ignoring udev %s event for device without ifindex or with invalid ifindex: %m", |
205 | device_action_to_string(action)); | |
5fae368b | 206 | return 0; |
5544ee85 TG |
207 | } |
208 | ||
299ad32d YW |
209 | r = device_is_renaming(device); |
210 | if (r < 0) { | |
a7f95575 YW |
211 | log_device_error_errno(device, r, "Failed to determine the device is renamed or not, ignoring '%s' uevent: %m", |
212 | device_action_to_string(action)); | |
299ad32d YW |
213 | return 0; |
214 | } | |
215 | if (r > 0) { | |
1cdea1a2 | 216 | log_device_debug(device, "Interface is under renaming, wait for the interface to be renamed."); |
299ad32d YW |
217 | return 0; |
218 | } | |
219 | ||
5fae368b | 220 | r = link_get(m, ifindex, &link); |
d2ebf952 YW |
221 | if (r < 0) { |
222 | if (r != -ENODEV) | |
223 | log_debug_errno(r, "Failed to get link from ifindex %i, ignoring: %m", ifindex); | |
5fae368b | 224 | return 0; |
d2ebf952 | 225 | } |
02b59d57 | 226 | |
d2ebf952 | 227 | (void) link_initialized(link, device); |
e1694a75 | 228 | |
f579559b TG |
229 | return 0; |
230 | } | |
231 | ||
5fae368b TG |
232 | static int manager_connect_udev(Manager *m) { |
233 | int r; | |
f579559b | 234 | |
d31f33e3 YW |
235 | /* udev does not initialize devices inside containers, so we rely on them being already |
236 | * initialized before entering the container. */ | |
237 | if (path_is_read_only_fs("/sys") > 0) | |
5fae368b | 238 | return 0; |
f579559b | 239 | |
d2ebf952 | 240 | r = sd_device_monitor_new(&m->device_monitor); |
02b59d57 | 241 | if (r < 0) |
d2ebf952 | 242 | return log_error_errno(r, "Failed to initialize device monitor: %m"); |
02b59d57 | 243 | |
a725efb0 YW |
244 | r = sd_device_monitor_set_receive_buffer_size(m->device_monitor, RCVBUF_SIZE); |
245 | if (r < 0) | |
246 | log_warning_errno(r, "Failed to increase buffer size for device monitor, ignoring: %m"); | |
247 | ||
d2ebf952 YW |
248 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "net", NULL); |
249 | if (r < 0) | |
250 | return log_error_errno(r, "Could not add device monitor filter: %m"); | |
505f8da7 | 251 | |
deb2b734 | 252 | r = sd_device_monitor_attach_event(m->device_monitor, m->event); |
5fae368b | 253 | if (r < 0) |
d2ebf952 | 254 | return log_error_errno(r, "Failed to attach event to device monitor: %m"); |
505f8da7 | 255 | |
deb2b734 | 256 | r = sd_device_monitor_start(m->device_monitor, manager_udev_process_link, m); |
505f8da7 | 257 | if (r < 0) |
d2ebf952 | 258 | return log_error_errno(r, "Failed to start device monitor: %m"); |
11a7f229 | 259 | |
505f8da7 TG |
260 | return 0; |
261 | } | |
f579559b | 262 | |
8dfed23d | 263 | static int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, Manager *m) { |
505f8da7 | 264 | Link *link = NULL; |
4d473d5d | 265 | NetDev *netdev = NULL; |
f2236469 | 266 | uint16_t type; |
ca4e095a | 267 | const char *name; |
505f8da7 | 268 | int r, ifindex; |
f579559b | 269 | |
505f8da7 TG |
270 | assert(rtnl); |
271 | assert(message); | |
f579559b TG |
272 | assert(m); |
273 | ||
1c4baffc TG |
274 | if (sd_netlink_message_is_error(message)) { |
275 | r = sd_netlink_message_get_errno(message); | |
45af44d4 | 276 | if (r < 0) |
5ecb131d | 277 | log_message_warning_errno(message, r, "rtnl: Could not receive link message, ignoring"); |
45af44d4 TG |
278 | |
279 | return 0; | |
280 | } | |
281 | ||
1c4baffc | 282 | r = sd_netlink_message_get_type(message, &type); |
f2236469 | 283 | if (r < 0) { |
e1694a75 | 284 | log_warning_errno(r, "rtnl: Could not get message type, ignoring: %m"); |
f2236469 | 285 | return 0; |
25a1bffc | 286 | } else if (!IN_SET(type, RTM_NEWLINK, RTM_DELLINK)) { |
7f474ed7 | 287 | log_warning("rtnl: Received unexpected message type %u when processing link, ignoring.", type); |
cdfee943 | 288 | return 0; |
f2236469 TG |
289 | } |
290 | ||
505f8da7 | 291 | r = sd_rtnl_message_link_get_ifindex(message, &ifindex); |
45af44d4 | 292 | if (r < 0) { |
7f474ed7 | 293 | log_warning_errno(r, "rtnl: Could not get ifindex from link message, ignoring: %m"); |
45af44d4 TG |
294 | return 0; |
295 | } else if (ifindex <= 0) { | |
7f474ed7 | 296 | log_warning("rtnl: received link message with invalid ifindex %d, ignoring.", ifindex); |
505f8da7 | 297 | return 0; |
a0db8e46 | 298 | } |
f579559b | 299 | |
1c4baffc | 300 | r = sd_netlink_message_read_string(message, IFLA_IFNAME, &name); |
45af44d4 | 301 | if (r < 0) { |
e1694a75 | 302 | log_warning_errno(r, "rtnl: Received link message without ifname, ignoring: %m"); |
4d473d5d | 303 | return 0; |
a0db8e46 ZJS |
304 | } |
305 | ||
306 | (void) link_get(m, ifindex, &link); | |
307 | (void) netdev_get(m, name, &netdev); | |
4d473d5d TG |
308 | |
309 | switch (type) { | |
310 | case RTM_NEWLINK: | |
311 | if (!link) { | |
312 | /* link is new, so add it */ | |
313 | r = link_add(m, message, &link); | |
314 | if (r < 0) { | |
7f474ed7 | 315 | log_warning_errno(r, "Could not process new link message, ignoring: %m"); |
4d473d5d TG |
316 | return 0; |
317 | } | |
318 | } | |
319 | ||
320 | if (netdev) { | |
321 | /* netdev exists, so make sure the ifindex matches */ | |
505f8da7 TG |
322 | r = netdev_set_ifindex(netdev, message); |
323 | if (r < 0) { | |
7f474ed7 | 324 | log_warning_errno(r, "Could not process new link message for netdev, ignoring: %m"); |
505f8da7 TG |
325 | return 0; |
326 | } | |
327 | } | |
e1202047 | 328 | |
f2236469 | 329 | r = link_update(link, message); |
e1694a75 | 330 | if (r < 0) { |
7f474ed7 | 331 | log_warning_errno(r, "Could not process link message, ignoring: %m"); |
f2236469 | 332 | return 0; |
e1694a75 | 333 | } |
4d473d5d TG |
334 | |
335 | break; | |
336 | ||
337 | case RTM_DELLINK: | |
338 | link_drop(link); | |
339 | netdev_drop(netdev); | |
340 | ||
341 | break; | |
342 | ||
343 | default: | |
7f474ed7 | 344 | assert_not_reached("Received link message with invalid RTNL message type."); |
f2236469 | 345 | } |
505f8da7 TG |
346 | |
347 | return 1; | |
348 | } | |
349 | ||
5fae368b TG |
350 | static int systemd_netlink_fd(void) { |
351 | int n, fd, rtnl_fd = -EINVAL; | |
352 | ||
353 | n = sd_listen_fds(true); | |
354 | if (n <= 0) | |
355 | return -EINVAL; | |
356 | ||
357 | for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) { | |
358 | if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) { | |
359 | if (rtnl_fd >= 0) | |
360 | return -EINVAL; | |
361 | ||
362 | rtnl_fd = fd; | |
363 | } | |
364 | } | |
365 | ||
366 | return rtnl_fd; | |
367 | } | |
368 | ||
05d0c2e3 JT |
369 | static int manager_connect_genl(Manager *m) { |
370 | int r; | |
371 | ||
372 | assert(m); | |
373 | ||
374 | r = sd_genl_socket_open(&m->genl); | |
375 | if (r < 0) | |
376 | return r; | |
377 | ||
378 | r = sd_netlink_inc_rcvbuf(m->genl, RCVBUF_SIZE); | |
379 | if (r < 0) | |
8c63924c | 380 | log_warning_errno(r, "Failed to increase receive buffer size for general netlink socket, ignoring: %m"); |
05d0c2e3 JT |
381 | |
382 | r = sd_netlink_attach_event(m->genl, m->event, 0); | |
383 | if (r < 0) | |
384 | return r; | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
5fae368b TG |
389 | static int manager_connect_rtnl(Manager *m) { |
390 | int fd, r; | |
505f8da7 TG |
391 | |
392 | assert(m); | |
505f8da7 | 393 | |
5fae368b TG |
394 | fd = systemd_netlink_fd(); |
395 | if (fd < 0) | |
1c4baffc | 396 | r = sd_netlink_open(&m->rtnl); |
5fae368b | 397 | else |
1c4baffc | 398 | r = sd_netlink_open_fd(&m->rtnl, fd); |
505f8da7 TG |
399 | if (r < 0) |
400 | return r; | |
401 | ||
e13af7bd YW |
402 | /* Bump receiver buffer, but only if we are not called via socket activation, as in that |
403 | * case systemd sets the receive buffer size for us, and the value in the .socket unit | |
404 | * should take full effect. */ | |
405 | if (fd < 0) { | |
406 | r = sd_netlink_inc_rcvbuf(m->rtnl, RCVBUF_SIZE); | |
407 | if (r < 0) | |
408 | log_warning_errno(r, "Failed to increase receive buffer size for rtnl socket, ignoring: %m"); | |
409 | } | |
f579559b | 410 | |
1c4baffc | 411 | r = sd_netlink_attach_event(m->rtnl, m->event, 0); |
505f8da7 TG |
412 | if (r < 0) |
413 | return r; | |
f579559b | 414 | |
8dfed23d | 415 | r = netlink_add_match(m->rtnl, NULL, RTM_NEWLINK, &manager_rtnl_process_link, NULL, m, "network-rtnl_process_link"); |
5fae368b TG |
416 | if (r < 0) |
417 | return r; | |
505f8da7 | 418 | |
8dfed23d | 419 | r = netlink_add_match(m->rtnl, NULL, RTM_DELLINK, &manager_rtnl_process_link, NULL, m, "network-rtnl_process_link"); |
5fae368b TG |
420 | if (r < 0) |
421 | return r; | |
45af44d4 | 422 | |
8dfed23d | 423 | r = netlink_add_match(m->rtnl, NULL, RTM_NEWADDR, &manager_rtnl_process_address, NULL, m, "network-rtnl_process_address"); |
5fae368b TG |
424 | if (r < 0) |
425 | return r; | |
426 | ||
8dfed23d | 427 | r = netlink_add_match(m->rtnl, NULL, RTM_DELADDR, &manager_rtnl_process_address, NULL, m, "network-rtnl_process_address"); |
5fae368b TG |
428 | if (r < 0) |
429 | return r; | |
430 | ||
8dfed23d | 431 | r = netlink_add_match(m->rtnl, NULL, RTM_NEWNEIGH, &manager_rtnl_process_neighbor, NULL, m, "network-rtnl_process_neighbor"); |
d1bdafd2 WKI |
432 | if (r < 0) |
433 | return r; | |
434 | ||
8dfed23d | 435 | r = netlink_add_match(m->rtnl, NULL, RTM_DELNEIGH, &manager_rtnl_process_neighbor, NULL, m, "network-rtnl_process_neighbor"); |
d1bdafd2 WKI |
436 | if (r < 0) |
437 | return r; | |
438 | ||
8dfed23d | 439 | r = netlink_add_match(m->rtnl, NULL, RTM_NEWROUTE, &manager_rtnl_process_route, NULL, m, "network-rtnl_process_route"); |
1c8e710c TG |
440 | if (r < 0) |
441 | return r; | |
442 | ||
8dfed23d | 443 | r = netlink_add_match(m->rtnl, NULL, RTM_DELROUTE, &manager_rtnl_process_route, NULL, m, "network-rtnl_process_route"); |
1c8e710c TG |
444 | if (r < 0) |
445 | return r; | |
446 | ||
8dfed23d | 447 | r = netlink_add_match(m->rtnl, NULL, RTM_NEWRULE, &manager_rtnl_process_rule, NULL, m, "network-rtnl_process_rule"); |
bce67bbe SS |
448 | if (r < 0) |
449 | return r; | |
450 | ||
8dfed23d | 451 | r = netlink_add_match(m->rtnl, NULL, RTM_DELRULE, &manager_rtnl_process_rule, NULL, m, "network-rtnl_process_rule"); |
bce67bbe SS |
452 | if (r < 0) |
453 | return r; | |
454 | ||
8dfed23d | 455 | r = netlink_add_match(m->rtnl, NULL, RTM_NEWNEXTHOP, &manager_rtnl_process_nexthop, NULL, m, "network-rtnl_process_nexthop"); |
c16c7808 SS |
456 | if (r < 0) |
457 | return r; | |
458 | ||
8dfed23d | 459 | r = netlink_add_match(m->rtnl, NULL, RTM_DELNEXTHOP, &manager_rtnl_process_nexthop, NULL, m, "network-rtnl_process_nexthop"); |
c16c7808 SS |
460 | if (r < 0) |
461 | return r; | |
462 | ||
5fae368b | 463 | return 0; |
45af44d4 | 464 | } |
505f8da7 | 465 | |
87d64897 | 466 | static int ordered_set_put_dns_server(OrderedSet *s, int ifindex, struct in_addr_full *dns) { |
e77bd3fd | 467 | const char *p; |
84de38c5 TG |
468 | int r; |
469 | ||
470 | assert(s); | |
e77bd3fd | 471 | assert(dns); |
5512a963 | 472 | |
87d64897 YW |
473 | if (dns->ifindex != 0 && dns->ifindex != ifindex) |
474 | return 0; | |
475 | ||
e77bd3fd YW |
476 | p = in_addr_full_to_string(dns); |
477 | if (!p) | |
478 | return 0; | |
5512a963 | 479 | |
e77bd3fd | 480 | r = ordered_set_put_strdup(s, p); |
5512a963 LP |
481 | if (r == -EEXIST) |
482 | return 0; | |
483 | ||
484 | return r; | |
485 | } | |
486 | ||
87d64897 | 487 | static int ordered_set_put_dns_servers(OrderedSet *s, int ifindex, struct in_addr_full **dns, unsigned n) { |
5512a963 LP |
488 | int r, c = 0; |
489 | unsigned i; | |
490 | ||
491 | assert(s); | |
e77bd3fd | 492 | assert(dns || n == 0); |
5512a963 LP |
493 | |
494 | for (i = 0; i < n; i++) { | |
87d64897 | 495 | r = ordered_set_put_dns_server(s, ifindex, dns[i]); |
5512a963 LP |
496 | if (r < 0) |
497 | return r; | |
498 | ||
499 | c += r; | |
500 | } | |
501 | ||
502 | return c; | |
503 | } | |
504 | ||
505 | static int ordered_set_put_in4_addr(OrderedSet *s, const struct in_addr *address) { | |
506 | char *p; | |
507 | int r; | |
508 | ||
509 | assert(s); | |
510 | assert(address); | |
84de38c5 TG |
511 | |
512 | r = in_addr_to_string(AF_INET, (const union in_addr_union*) address, &p); | |
513 | if (r < 0) | |
514 | return r; | |
515 | ||
00616955 | 516 | r = ordered_set_consume(s, p); |
84de38c5 TG |
517 | if (r == -EEXIST) |
518 | return 0; | |
519 | ||
520 | return r; | |
521 | } | |
522 | ||
072320ea TH |
523 | static int ordered_set_put_in4_addrv(OrderedSet *s, |
524 | const struct in_addr *addresses, | |
525 | size_t n, | |
526 | bool (*predicate)(const struct in_addr *addr)) { | |
5512a963 | 527 | int r, c = 0; |
072320ea | 528 | size_t i; |
84de38c5 TG |
529 | |
530 | assert(s); | |
5512a963 | 531 | assert(n == 0 || addresses); |
84de38c5 TG |
532 | |
533 | for (i = 0; i < n; i++) { | |
072320ea TH |
534 | if (predicate && !predicate(&addresses[i])) |
535 | continue; | |
5512a963 | 536 | r = ordered_set_put_in4_addr(s, addresses+i); |
84de38c5 TG |
537 | if (r < 0) |
538 | return r; | |
539 | ||
540 | c += r; | |
541 | } | |
542 | ||
543 | return c; | |
544 | } | |
545 | ||
84de38c5 | 546 | static int manager_save(Manager *m) { |
2a71d57f | 547 | _cleanup_ordered_set_free_free_ OrderedSet *dns = NULL, *ntp = NULL, *sip = NULL, *search_domains = NULL, *route_domains = NULL; |
299d578f | 548 | const char *operstate_str, *carrier_state_str, *address_state_str; |
84de38c5 | 549 | LinkOperationalState operstate = LINK_OPERSTATE_OFF; |
7f3c07ad YW |
550 | LinkCarrierState carrier_state = LINK_CARRIER_STATE_OFF; |
551 | LinkAddressState address_state = LINK_ADDRESS_STATE_OFF; | |
299d578f SS |
552 | _cleanup_free_ char *temp_path = NULL; |
553 | _cleanup_strv_free_ char **p = NULL; | |
554 | _cleanup_fclose_ FILE *f = NULL; | |
555 | Link *link; | |
84de38c5 TG |
556 | int r; |
557 | ||
558 | assert(m); | |
559 | assert(m->state_file); | |
560 | ||
561 | /* We add all NTP and DNS server to a set, to filter out duplicates */ | |
00616955 | 562 | dns = ordered_set_new(&string_hash_ops); |
84de38c5 TG |
563 | if (!dns) |
564 | return -ENOMEM; | |
565 | ||
00616955 | 566 | ntp = ordered_set_new(&string_hash_ops); |
84de38c5 TG |
567 | if (!ntp) |
568 | return -ENOMEM; | |
569 | ||
284e8fd0 SS |
570 | sip = ordered_set_new(&string_hash_ops); |
571 | if (!sip) | |
299d578f SS |
572 | return -ENOMEM; |
573 | ||
482d1aeb | 574 | search_domains = ordered_set_new(&dns_name_hash_ops); |
3df9bec5 LP |
575 | if (!search_domains) |
576 | return -ENOMEM; | |
577 | ||
482d1aeb | 578 | route_domains = ordered_set_new(&dns_name_hash_ops); |
3df9bec5 | 579 | if (!route_domains) |
84de38c5 TG |
580 | return -ENOMEM; |
581 | ||
90e74a66 | 582 | HASHMAP_FOREACH(link, m->links) { |
2a71d57f LP |
583 | const struct in_addr *addresses; |
584 | ||
84de38c5 TG |
585 | if (link->flags & IFF_LOOPBACK) |
586 | continue; | |
587 | ||
588 | if (link->operstate > operstate) | |
589 | operstate = link->operstate; | |
590 | ||
7f3c07ad YW |
591 | if (link->carrier_state > carrier_state) |
592 | carrier_state = link->carrier_state; | |
593 | ||
594 | if (link->address_state > address_state) | |
595 | address_state = link->address_state; | |
596 | ||
84de38c5 TG |
597 | if (!link->network) |
598 | continue; | |
599 | ||
600 | /* First add the static configured entries */ | |
87d64897 YW |
601 | if (link->n_dns != (unsigned) -1) |
602 | r = ordered_set_put_dns_servers(dns, link->ifindex, link->dns, link->n_dns); | |
603 | else | |
604 | r = ordered_set_put_dns_servers(dns, link->ifindex, link->network->dns, link->network->n_dns); | |
84de38c5 TG |
605 | if (r < 0) |
606 | return r; | |
607 | ||
15761549 | 608 | r = ordered_set_put_strdupv(ntp, link->ntp ?: link->network->ntp); |
84de38c5 TG |
609 | if (r < 0) |
610 | return r; | |
611 | ||
15761549 | 612 | r = ordered_set_put_string_set(search_domains, link->search_domains ?: link->network->search_domains); |
3df9bec5 LP |
613 | if (r < 0) |
614 | return r; | |
615 | ||
15761549 | 616 | r = ordered_set_put_string_set(route_domains, link->route_domains ?: link->network->route_domains); |
84de38c5 TG |
617 | if (r < 0) |
618 | return r; | |
619 | ||
620 | if (!link->dhcp_lease) | |
621 | continue; | |
622 | ||
623 | /* Secondly, add the entries acquired via DHCP */ | |
27cb34f5 | 624 | if (link->network->dhcp_use_dns) { |
84de38c5 TG |
625 | r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses); |
626 | if (r > 0) { | |
072320ea | 627 | r = ordered_set_put_in4_addrv(dns, addresses, r, in4_addr_is_non_local); |
84de38c5 TG |
628 | if (r < 0) |
629 | return r; | |
630 | } else if (r < 0 && r != -ENODATA) | |
631 | return r; | |
632 | } | |
633 | ||
27cb34f5 | 634 | if (link->network->dhcp_use_ntp) { |
84de38c5 TG |
635 | r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses); |
636 | if (r > 0) { | |
072320ea | 637 | r = ordered_set_put_in4_addrv(ntp, addresses, r, in4_addr_is_non_local); |
84de38c5 TG |
638 | if (r < 0) |
639 | return r; | |
640 | } else if (r < 0 && r != -ENODATA) | |
641 | return r; | |
642 | } | |
643 | ||
299d578f | 644 | if (link->network->dhcp_use_sip) { |
299d578f SS |
645 | r = sd_dhcp_lease_get_sip(link->dhcp_lease, &addresses); |
646 | if (r > 0) { | |
647 | r = ordered_set_put_in4_addrv(sip, addresses, r, in4_addr_is_non_local); | |
648 | if (r < 0) | |
649 | return r; | |
650 | } else if (r < 0 && r != -ENODATA) | |
651 | return r; | |
652 | } | |
653 | ||
b2a81c0b | 654 | if (link->network->dhcp_use_domains != DHCP_USE_DOMAINS_NO) { |
84de38c5 | 655 | const char *domainname; |
b85bc551 | 656 | char **domains = NULL; |
84de38c5 | 657 | |
b85bc551 | 658 | OrderedSet *target_domains = (link->network->dhcp_use_domains == DHCP_USE_DOMAINS_YES) ? search_domains : route_domains; |
84de38c5 TG |
659 | r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname); |
660 | if (r >= 0) { | |
b85bc551 DW |
661 | r = ordered_set_put_strdup(target_domains, domainname); |
662 | if (r < 0) | |
663 | return r; | |
664 | } else if (r != -ENODATA) | |
665 | return r; | |
b2a81c0b | 666 | |
b85bc551 DW |
667 | r = sd_dhcp_lease_get_search_domains(link->dhcp_lease, &domains); |
668 | if (r >= 0) { | |
669 | r = ordered_set_put_strdupv(target_domains, domains); | |
84de38c5 TG |
670 | if (r < 0) |
671 | return r; | |
672 | } else if (r != -ENODATA) | |
673 | return r; | |
674 | } | |
675 | } | |
676 | ||
7f3c07ad YW |
677 | if (carrier_state >= LINK_CARRIER_STATE_ENSLAVED) |
678 | carrier_state = LINK_CARRIER_STATE_CARRIER; | |
679 | ||
84de38c5 TG |
680 | operstate_str = link_operstate_to_string(operstate); |
681 | assert(operstate_str); | |
682 | ||
ac999bf0 YW |
683 | carrier_state_str = link_carrier_state_to_string(carrier_state); |
684 | assert(carrier_state_str); | |
685 | ||
686 | address_state_str = link_address_state_to_string(address_state); | |
687 | assert(address_state_str); | |
688 | ||
84de38c5 TG |
689 | r = fopen_temporary(m->state_file, &f, &temp_path); |
690 | if (r < 0) | |
691 | return r; | |
692 | ||
5512a963 | 693 | (void) fchmod(fileno(f), 0644); |
84de38c5 TG |
694 | |
695 | fprintf(f, | |
696 | "# This is private data. Do not parse.\n" | |
ac999bf0 YW |
697 | "OPER_STATE=%s\n" |
698 | "CARRIER_STATE=%s\n" | |
699 | "ADDRESS_STATE=%s\n", | |
700 | operstate_str, carrier_state_str, address_state_str); | |
84de38c5 | 701 | |
53ae3f64 ZJS |
702 | ordered_set_print(f, "DNS=", dns); |
703 | ordered_set_print(f, "NTP=", ntp); | |
299d578f | 704 | ordered_set_print(f, "SIP=", sip); |
53ae3f64 ZJS |
705 | ordered_set_print(f, "DOMAINS=", search_domains); |
706 | ordered_set_print(f, "ROUTE_DOMAINS=", route_domains); | |
84de38c5 | 707 | |
458d8ae3 ZJS |
708 | r = routing_policy_serialize_rules(m->rules, f); |
709 | if (r < 0) | |
710 | goto fail; | |
bce67bbe | 711 | |
84de38c5 TG |
712 | r = fflush_and_check(f); |
713 | if (r < 0) | |
714 | goto fail; | |
715 | ||
716 | if (rename(temp_path, m->state_file) < 0) { | |
717 | r = -errno; | |
718 | goto fail; | |
719 | } | |
720 | ||
721 | if (m->operational_state != operstate) { | |
722 | m->operational_state = operstate; | |
7f3c07ad YW |
723 | if (strv_extend(&p, "OperationalState") < 0) |
724 | log_oom(); | |
725 | } | |
726 | ||
727 | if (m->carrier_state != carrier_state) { | |
728 | m->carrier_state = carrier_state; | |
729 | if (strv_extend(&p, "CarrierState") < 0) | |
730 | log_oom(); | |
731 | } | |
732 | ||
733 | if (m->address_state != address_state) { | |
734 | m->address_state = address_state; | |
735 | if (strv_extend(&p, "AddressState") < 0) | |
736 | log_oom(); | |
737 | } | |
738 | ||
739 | if (p) { | |
740 | r = manager_send_changed_strv(m, p); | |
84de38c5 | 741 | if (r < 0) |
7f3c07ad | 742 | log_error_errno(r, "Could not emit changed properties: %m"); |
84de38c5 TG |
743 | } |
744 | ||
745 | m->dirty = false; | |
746 | ||
747 | return 0; | |
748 | ||
749 | fail: | |
750 | (void) unlink(m->state_file); | |
751 | (void) unlink(temp_path); | |
752 | ||
753 | return log_error_errno(r, "Failed to save network state to %s: %m", m->state_file); | |
754 | } | |
755 | ||
756 | static int manager_dirty_handler(sd_event_source *s, void *userdata) { | |
757 | Manager *m = userdata; | |
758 | Link *link; | |
84de38c5 TG |
759 | |
760 | assert(m); | |
761 | ||
762 | if (m->dirty) | |
763 | manager_save(m); | |
764 | ||
90e74a66 | 765 | SET_FOREACH(link, m->dirty_links) |
c2a65950 | 766 | (void) link_save_and_clean(link); |
84de38c5 TG |
767 | |
768 | return 1; | |
769 | } | |
770 | ||
ab76be55 ZJS |
771 | static int signal_terminate_callback(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { |
772 | Manager *m = userdata; | |
773 | ||
774 | assert(m); | |
775 | m->restarting = false; | |
776 | ||
777 | log_debug("Terminate operation initiated."); | |
778 | ||
779 | return sd_event_exit(sd_event_source_get_event(s), 0); | |
780 | } | |
781 | ||
782 | static int signal_restart_callback(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { | |
783 | Manager *m = userdata; | |
784 | ||
785 | assert(m); | |
786 | m->restarting = true; | |
787 | ||
788 | log_debug("Restart operation initiated."); | |
789 | ||
790 | return sd_event_exit(sd_event_source_get_event(s), 0); | |
791 | } | |
792 | ||
3534a043 | 793 | int manager_new(Manager **ret) { |
8e766630 | 794 | _cleanup_(manager_freep) Manager *m = NULL; |
45af44d4 | 795 | int r; |
f579559b | 796 | |
a879e1a4 | 797 | m = new(Manager, 1); |
5fae368b TG |
798 | if (!m) |
799 | return -ENOMEM; | |
45af44d4 | 800 | |
a879e1a4 YW |
801 | *m = (Manager) { |
802 | .speed_meter_interval_usec = SPEED_METER_DEFAULT_TIME_INTERVAL, | |
5d3b8017 | 803 | .manage_foreign_routes = true, |
c643bda5 | 804 | .ethtool_fd = -1, |
a879e1a4 YW |
805 | }; |
806 | ||
5fae368b TG |
807 | m->state_file = strdup("/run/systemd/netif/state"); |
808 | if (!m->state_file) | |
809 | return -ENOMEM; | |
810 | ||
3534a043 YW |
811 | r = sd_event_default(&m->event); |
812 | if (r < 0) | |
813 | return r; | |
814 | ||
ab76be55 ZJS |
815 | assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, SIGUSR2, -1) >= 0); |
816 | ||
05e21627 | 817 | (void) sd_event_set_watchdog(m->event, true); |
ab76be55 ZJS |
818 | (void) sd_event_add_signal(m->event, NULL, SIGTERM, signal_terminate_callback, m); |
819 | (void) sd_event_add_signal(m->event, NULL, SIGINT, signal_terminate_callback, m); | |
820 | (void) sd_event_add_signal(m->event, NULL, SIGUSR2, signal_restart_callback, m); | |
5fae368b | 821 | |
84de38c5 TG |
822 | r = sd_event_add_post(m->event, NULL, manager_dirty_handler, m); |
823 | if (r < 0) | |
824 | return r; | |
825 | ||
5fae368b | 826 | r = manager_connect_rtnl(m); |
45af44d4 TG |
827 | if (r < 0) |
828 | return r; | |
829 | ||
05d0c2e3 JT |
830 | r = manager_connect_genl(m); |
831 | if (r < 0) | |
832 | return r; | |
833 | ||
5fae368b TG |
834 | r = manager_connect_udev(m); |
835 | if (r < 0) | |
836 | return r; | |
45af44d4 | 837 | |
05d0c2e3 JT |
838 | r = sd_resolve_default(&m->resolve); |
839 | if (r < 0) | |
840 | return r; | |
841 | ||
842 | r = sd_resolve_attach_event(m->resolve, m->event, 0); | |
843 | if (r < 0) | |
844 | return r; | |
845 | ||
ed76f585 | 846 | r = address_pool_setup_default(m); |
5fae368b TG |
847 | if (r < 0) |
848 | return r; | |
f579559b | 849 | |
8341a5c3 | 850 | m->duid.type = DUID_TYPE_EN; |
413708d1 | 851 | |
458d8ae3 | 852 | (void) routing_policy_load_rules(m->state_file, &m->rules_saved); |
bce67bbe | 853 | |
1cc6c93a | 854 | *ret = TAKE_PTR(m); |
f579559b | 855 | |
f579559b TG |
856 | return 0; |
857 | } | |
858 | ||
5fae368b | 859 | void manager_free(Manager *m) { |
5fae368b | 860 | Link *link; |
f579559b | 861 | |
5fae368b TG |
862 | if (!m) |
863 | return; | |
505f8da7 | 864 | |
5fae368b | 865 | free(m->state_file); |
505f8da7 | 866 | |
90e74a66 | 867 | HASHMAP_FOREACH(link, m->links) |
2a99eed0 | 868 | (void) link_stop_engines(link, true); |
946f8e14 | 869 | |
1633c457 YW |
870 | m->dhcp6_prefixes = hashmap_free_with_destructor(m->dhcp6_prefixes, dhcp6_pd_free); |
871 | m->dhcp6_pd_prefixes = set_free_with_destructor(m->dhcp6_pd_prefixes, dhcp6_pd_free); | |
f579559b | 872 | |
c4397d94 | 873 | m->dirty_links = set_free_with_destructor(m->dirty_links, link_unref); |
5f707e12 YW |
874 | m->links_requesting_uuid = set_free_with_destructor(m->links_requesting_uuid, link_unref); |
875 | m->links = hashmap_free_with_destructor(m->links, link_unref); | |
27dfc982 | 876 | |
5f707e12 | 877 | m->duids_requesting_uuid = set_free(m->duids_requesting_uuid); |
715d398e | 878 | m->networks = ordered_hashmap_free_with_destructor(m->networks, network_unref); |
dbffab87 | 879 | |
c4397d94 | 880 | m->netdevs = hashmap_free_with_destructor(m->netdevs, netdev_unref); |
5fae368b | 881 | |
bfbf150e | 882 | ordered_set_free_free(m->address_pools); |
5fae368b | 883 | |
f19ee681 YW |
884 | /* routing_policy_rule_free() access m->rules and m->rules_foreign. |
885 | * So, it is necessary to set NULL after the sets are freed. */ | |
8eec0b9d YW |
886 | m->rules = set_free(m->rules); |
887 | m->rules_foreign = set_free(m->rules_foreign); | |
888 | set_free(m->rules_saved); | |
bce67bbe | 889 | |
ad208fac YW |
890 | m->routes = set_free(m->routes); |
891 | m->routes_foreign = set_free(m->routes_foreign); | |
892 | ||
d4df6326 SS |
893 | sd_netlink_unref(m->rtnl); |
894 | sd_netlink_unref(m->genl); | |
895 | sd_resolve_unref(m->resolve); | |
896 | ||
a879e1a4 | 897 | sd_event_source_unref(m->speed_meter_event_source); |
2f5b4a77 | 898 | sd_event_unref(m->event); |
5fae368b | 899 | |
d2ebf952 | 900 | sd_device_monitor_unref(m->device_monitor); |
7d20d375 | 901 | |
15761549 | 902 | bus_verify_polkit_async_registry_free(m->polkit_registry); |
92e31da1 | 903 | sd_bus_flush_close_unref(m->bus); |
7d20d375 | 904 | |
7901cea1 MP |
905 | free(m->dynamic_timezone); |
906 | free(m->dynamic_hostname); | |
907 | ||
c643bda5 YW |
908 | safe_close(m->ethtool_fd); |
909 | ||
5fae368b TG |
910 | free(m); |
911 | } | |
912 | ||
b76d99d9 | 913 | int manager_start(Manager *m) { |
84de38c5 | 914 | Link *link; |
a879e1a4 | 915 | int r; |
84de38c5 | 916 | |
a97dcc12 TG |
917 | assert(m); |
918 | ||
a879e1a4 YW |
919 | r = manager_start_speed_meter(m); |
920 | if (r < 0) | |
921 | return log_error_errno(r, "Failed to initialize speed meter: %m"); | |
922 | ||
84de38c5 TG |
923 | /* The dirty handler will deal with future serialization, but the first one |
924 | must be done explicitly. */ | |
925 | ||
926 | manager_save(m); | |
927 | ||
90e74a66 | 928 | HASHMAP_FOREACH(link, m->links) |
c2a65950 | 929 | (void) link_save(link); |
84de38c5 | 930 | |
b76d99d9 | 931 | return 0; |
a97dcc12 TG |
932 | } |
933 | ||
5fae368b TG |
934 | int manager_load_config(Manager *m) { |
935 | int r; | |
936 | ||
937 | /* update timestamp */ | |
dc0d4078 | 938 | paths_check_timestamp(NETWORK_DIRS, &m->network_dirs_ts_usec, true); |
5fae368b | 939 | |
e272b621 | 940 | r = netdev_load(m, false); |
f579559b TG |
941 | if (r < 0) |
942 | return r; | |
943 | ||
7f06b3e1 | 944 | r = network_load(m, &m->networks); |
9021bb9f TG |
945 | if (r < 0) |
946 | return r; | |
947 | ||
f579559b TG |
948 | return 0; |
949 | } | |
f882c247 | 950 | |
5fae368b | 951 | bool manager_should_reload(Manager *m) { |
dc0d4078 | 952 | return paths_check_timestamp(NETWORK_DIRS, &m->network_dirs_ts_usec, false); |
5fae368b TG |
953 | } |
954 | ||
446aaaf3 YW |
955 | static int manager_enumerate_internal( |
956 | Manager *m, | |
957 | sd_netlink_message *req, | |
958 | int (*process)(sd_netlink *, sd_netlink_message *, Manager *), | |
959 | const char *name) { | |
960 | ||
961 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *reply = NULL; | |
f882c247 TG |
962 | int r; |
963 | ||
5da8149f | 964 | assert(m); |
5fae368b | 965 | assert(m->rtnl); |
446aaaf3 YW |
966 | assert(req); |
967 | assert(process); | |
f882c247 | 968 | |
1c4baffc | 969 | r = sd_netlink_message_request_dump(req, true); |
dd3efc09 TG |
970 | if (r < 0) |
971 | return r; | |
972 | ||
1c4baffc | 973 | r = sd_netlink_call(m->rtnl, req, 0, &reply); |
446aaaf3 | 974 | if (r < 0) { |
92b555aa | 975 | if (name && (r == -EOPNOTSUPP || (r == -EINVAL && mac_selinux_enforcing()))) { |
446aaaf3 YW |
976 | log_debug_errno(r, "%s are not supported by the kernel. Ignoring.", name); |
977 | return 0; | |
978 | } | |
979 | ||
f2236469 | 980 | return r; |
446aaaf3 | 981 | } |
f2236469 | 982 | |
446aaaf3 | 983 | for (sd_netlink_message *reply_one = reply; reply_one; reply_one = sd_netlink_message_next(reply_one)) { |
5fae368b | 984 | int k; |
2e9f08ea | 985 | |
6a24f148 TG |
986 | m->enumerating = true; |
987 | ||
446aaaf3 YW |
988 | k = process(m->rtnl, reply_one, m); |
989 | if (k < 0 && r >= 0) | |
5fae368b | 990 | r = k; |
6a24f148 TG |
991 | |
992 | m->enumerating = false; | |
5fae368b | 993 | } |
2e9f08ea | 994 | |
5fae368b | 995 | return r; |
f882c247 | 996 | } |
3bef724f | 997 | |
446aaaf3 YW |
998 | static int manager_enumerate_links(Manager *m) { |
999 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; | |
1346b1f0 TG |
1000 | int r; |
1001 | ||
5fae368b TG |
1002 | assert(m); |
1003 | assert(m->rtnl); | |
bcbca829 | 1004 | |
446aaaf3 | 1005 | r = sd_rtnl_message_new_link(m->rtnl, &req, RTM_GETLINK, 0); |
5fae368b TG |
1006 | if (r < 0) |
1007 | return r; | |
1008 | ||
446aaaf3 YW |
1009 | return manager_enumerate_internal(m, req, manager_rtnl_process_link, NULL); |
1010 | } | |
5fae368b | 1011 | |
446aaaf3 YW |
1012 | static int manager_enumerate_addresses(Manager *m) { |
1013 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; | |
1014 | int r; | |
6a24f148 | 1015 | |
446aaaf3 YW |
1016 | assert(m); |
1017 | assert(m->rtnl); | |
6a24f148 | 1018 | |
446aaaf3 YW |
1019 | r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, 0, 0); |
1020 | if (r < 0) | |
1021 | return r; | |
5fae368b | 1022 | |
446aaaf3 | 1023 | return manager_enumerate_internal(m, req, manager_rtnl_process_address, NULL); |
1346b1f0 | 1024 | } |
d1bdafd2 | 1025 | |
446aaaf3 YW |
1026 | static int manager_enumerate_neighbors(Manager *m) { |
1027 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; | |
d1bdafd2 WKI |
1028 | int r; |
1029 | ||
1030 | assert(m); | |
1031 | assert(m->rtnl); | |
1032 | ||
1033 | r = sd_rtnl_message_new_neigh(m->rtnl, &req, RTM_GETNEIGH, 0, AF_UNSPEC); | |
1034 | if (r < 0) | |
1035 | return r; | |
1036 | ||
446aaaf3 | 1037 | return manager_enumerate_internal(m, req, manager_rtnl_process_neighbor, NULL); |
d1bdafd2 | 1038 | } |
1346b1f0 | 1039 | |
446aaaf3 YW |
1040 | static int manager_enumerate_routes(Manager *m) { |
1041 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; | |
1c8e710c TG |
1042 | int r; |
1043 | ||
1044 | assert(m); | |
1045 | assert(m->rtnl); | |
1046 | ||
5ff1ef31 YW |
1047 | if (!m->manage_foreign_routes) |
1048 | return 0; | |
1049 | ||
1c8e710c TG |
1050 | r = sd_rtnl_message_new_route(m->rtnl, &req, RTM_GETROUTE, 0, 0); |
1051 | if (r < 0) | |
1052 | return r; | |
1053 | ||
446aaaf3 | 1054 | return manager_enumerate_internal(m, req, manager_rtnl_process_route, NULL); |
1c8e710c TG |
1055 | } |
1056 | ||
446aaaf3 YW |
1057 | static int manager_enumerate_rules(Manager *m) { |
1058 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; | |
bce67bbe SS |
1059 | int r; |
1060 | ||
1061 | assert(m); | |
1062 | assert(m->rtnl); | |
1063 | ||
1064 | r = sd_rtnl_message_new_routing_policy_rule(m->rtnl, &req, RTM_GETRULE, 0); | |
1065 | if (r < 0) | |
1066 | return r; | |
1067 | ||
446aaaf3 | 1068 | return manager_enumerate_internal(m, req, manager_rtnl_process_rule, "Routing policy rules"); |
bce67bbe SS |
1069 | } |
1070 | ||
446aaaf3 YW |
1071 | static int manager_enumerate_nexthop(Manager *m) { |
1072 | _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; | |
c16c7808 SS |
1073 | int r; |
1074 | ||
1075 | assert(m); | |
1076 | assert(m->rtnl); | |
1077 | ||
1078 | r = sd_rtnl_message_new_nexthop(m->rtnl, &req, RTM_GETNEXTHOP, 0, 0); | |
1079 | if (r < 0) | |
1080 | return r; | |
1081 | ||
446aaaf3 YW |
1082 | return manager_enumerate_internal(m, req, manager_rtnl_process_nexthop, "Nexthop rules"); |
1083 | } | |
c16c7808 | 1084 | |
446aaaf3 YW |
1085 | int manager_enumerate(Manager *m) { |
1086 | int r; | |
c16c7808 | 1087 | |
446aaaf3 YW |
1088 | r = manager_enumerate_links(m); |
1089 | if (r < 0) | |
1090 | return log_error_errno(r, "Could not enumerate links: %m"); | |
c16c7808 | 1091 | |
446aaaf3 YW |
1092 | r = manager_enumerate_addresses(m); |
1093 | if (r < 0) | |
1094 | return log_error_errno(r, "Could not enumerate addresses: %m"); | |
c16c7808 | 1095 | |
446aaaf3 YW |
1096 | r = manager_enumerate_neighbors(m); |
1097 | if (r < 0) | |
1098 | return log_error_errno(r, "Could not enumerate neighbors: %m"); | |
c16c7808 | 1099 | |
446aaaf3 YW |
1100 | r = manager_enumerate_routes(m); |
1101 | if (r < 0) | |
1102 | return log_error_errno(r, "Could not enumerate routes: %m"); | |
c16c7808 | 1103 | |
446aaaf3 YW |
1104 | r = manager_enumerate_rules(m); |
1105 | if (r < 0) | |
1106 | return log_error_errno(r, "Could not enumerate routing policy rules: %m"); | |
c16c7808 | 1107 | |
446aaaf3 YW |
1108 | r = manager_enumerate_nexthop(m); |
1109 | if (r < 0) | |
1110 | return log_error_errno(r, "Could not enumerate nexthop rules: %m"); | |
1111 | ||
1112 | return 0; | |
c16c7808 SS |
1113 | } |
1114 | ||
4f5f911e LP |
1115 | Link* manager_find_uplink(Manager *m, Link *exclude) { |
1116 | _cleanup_free_ struct local_address *gateways = NULL; | |
1117 | int n, i; | |
1118 | ||
1119 | assert(m); | |
1120 | ||
1121 | /* Looks for a suitable "uplink", via black magic: an | |
1122 | * interface that is up and where the default route with the | |
1123 | * highest priority points to. */ | |
1124 | ||
1125 | n = local_gateways(m->rtnl, 0, AF_UNSPEC, &gateways); | |
1126 | if (n < 0) { | |
1127 | log_warning_errno(n, "Failed to determine list of default gateways: %m"); | |
1128 | return NULL; | |
1129 | } | |
1130 | ||
1131 | for (i = 0; i < n; i++) { | |
1132 | Link *link; | |
1133 | ||
1134 | link = hashmap_get(m->links, INT_TO_PTR(gateways[i].ifindex)); | |
1135 | if (!link) { | |
c2c940bd | 1136 | log_debug("Weird, found a gateway for a link we don't know. Ignoring."); |
4f5f911e LP |
1137 | continue; |
1138 | } | |
1139 | ||
1140 | if (link == exclude) | |
1141 | continue; | |
1142 | ||
1143 | if (link->operstate < LINK_OPERSTATE_ROUTABLE) | |
1144 | continue; | |
1145 | ||
1146 | return link; | |
1147 | } | |
1148 | ||
1149 | return NULL; | |
1150 | } | |
84de38c5 TG |
1151 | |
1152 | void manager_dirty(Manager *manager) { | |
1153 | assert(manager); | |
1154 | ||
1155 | /* the serialized state in /run is no longer up-to-date */ | |
1156 | manager->dirty = true; | |
1157 | } | |
59eb33e0 MP |
1158 | |
1159 | static int set_hostname_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { | |
0a0e594a | 1160 | _unused_ Manager *manager = userdata; |
59eb33e0 MP |
1161 | const sd_bus_error *e; |
1162 | ||
1163 | assert(m); | |
1164 | assert(manager); | |
1165 | ||
1166 | e = sd_bus_message_get_error(m); | |
1167 | if (e) | |
1168 | log_warning_errno(sd_bus_error_get_errno(e), "Could not set hostname: %s", e->message); | |
1169 | ||
1170 | return 1; | |
1171 | } | |
1172 | ||
1173 | int manager_set_hostname(Manager *m, const char *hostname) { | |
1174 | int r; | |
1175 | ||
1176 | log_debug("Setting transient hostname: '%s'", strna(hostname)); | |
d7afd945 | 1177 | |
7901cea1 MP |
1178 | if (free_and_strdup(&m->dynamic_hostname, hostname) < 0) |
1179 | return log_oom(); | |
59eb33e0 | 1180 | |
d7afd945 | 1181 | if (!m->bus || sd_bus_is_ready(m->bus) <= 0) { |
e0d95f03 | 1182 | log_debug("Not connected to system bus, setting hostname later."); |
59eb33e0 MP |
1183 | return 0; |
1184 | } | |
1185 | ||
1186 | r = sd_bus_call_method_async( | |
1187 | m->bus, | |
1188 | NULL, | |
1189 | "org.freedesktop.hostname1", | |
1190 | "/org/freedesktop/hostname1", | |
1191 | "org.freedesktop.hostname1", | |
1192 | "SetHostname", | |
1193 | set_hostname_handler, | |
1194 | m, | |
1195 | "sb", | |
1196 | hostname, | |
1197 | false); | |
1198 | ||
1199 | if (r < 0) | |
1200 | return log_error_errno(r, "Could not set transient hostname: %m"); | |
1201 | ||
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | static int set_timezone_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { | |
0a0e594a | 1206 | _unused_ Manager *manager = userdata; |
59eb33e0 MP |
1207 | const sd_bus_error *e; |
1208 | ||
1209 | assert(m); | |
1210 | assert(manager); | |
1211 | ||
1212 | e = sd_bus_message_get_error(m); | |
1213 | if (e) | |
1214 | log_warning_errno(sd_bus_error_get_errno(e), "Could not set timezone: %s", e->message); | |
1215 | ||
1216 | return 1; | |
1217 | } | |
1218 | ||
1219 | int manager_set_timezone(Manager *m, const char *tz) { | |
1220 | int r; | |
1221 | ||
1222 | assert(m); | |
1223 | assert(tz); | |
1224 | ||
1225 | log_debug("Setting system timezone: '%s'", tz); | |
7901cea1 MP |
1226 | if (free_and_strdup(&m->dynamic_timezone, tz) < 0) |
1227 | return log_oom(); | |
59eb33e0 | 1228 | |
d7afd945 | 1229 | if (!m->bus || sd_bus_is_ready(m->bus) <= 0) { |
e0d95f03 | 1230 | log_debug("Not connected to system bus, setting timezone later."); |
59eb33e0 MP |
1231 | return 0; |
1232 | } | |
1233 | ||
1234 | r = sd_bus_call_method_async( | |
1235 | m->bus, | |
1236 | NULL, | |
1237 | "org.freedesktop.timedate1", | |
1238 | "/org/freedesktop/timedate1", | |
1239 | "org.freedesktop.timedate1", | |
1240 | "SetTimezone", | |
1241 | set_timezone_handler, | |
1242 | m, | |
1243 | "sb", | |
1244 | tz, | |
1245 | false); | |
1246 | if (r < 0) | |
1247 | return log_error_errno(r, "Could not set timezone: %m"); | |
1248 | ||
1249 | return 0; | |
1250 | } |