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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
e331e246 | 2 | |
071712b2 | 3 | #include <net/if.h> |
f39dbf28 | 4 | #include <netinet/in.h> |
7f06b3e1 | 5 | #include <sys/capability.h> |
071712b2 | 6 | |
b5efdb8a | 7 | #include "alloc-util.h" |
071712b2 | 8 | #include "bus-common-errors.h" |
7695e2cb | 9 | #include "bus-message-util.h" |
269e4d2d | 10 | #include "bus-polkit.h" |
6e194652 | 11 | #include "networkd-dhcp-server-bus.h" |
54a16efe | 12 | #include "networkd-json.h" |
7f3c07ad | 13 | #include "networkd-link-bus.h" |
37d577c8 | 14 | #include "networkd-link.h" |
79a59fa5 | 15 | #include "networkd-manager-bus.h" |
23f53b99 | 16 | #include "networkd-manager.h" |
6e194652 | 17 | #include "networkd-network-bus.h" |
37d577c8 | 18 | #include "path-util.h" |
51517f9e | 19 | #include "strv.h" |
7f06b3e1 | 20 | #include "user-util.h" |
e331e246 | 21 | |
37d577c8 YW |
22 | static int method_list_links(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
23 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
24 | Manager *manager = userdata; | |
37d577c8 YW |
25 | Link *link; |
26 | int r; | |
27 | ||
28 | r = sd_bus_message_new_method_return(message, &reply); | |
29 | if (r < 0) | |
30 | return r; | |
31 | ||
32 | r = sd_bus_message_open_container(reply, 'a', "(iso)"); | |
33 | if (r < 0) | |
34 | return r; | |
35 | ||
6eab614d | 36 | HASHMAP_FOREACH(link, manager->links_by_index) { |
37d577c8 YW |
37 | _cleanup_free_ char *path = NULL; |
38 | ||
39 | path = link_bus_path(link); | |
40 | if (!path) | |
41 | return -ENOMEM; | |
42 | ||
43 | r = sd_bus_message_append( | |
44 | reply, "(iso)", | |
45 | link->ifindex, | |
46 | link->ifname, | |
47 | empty_to_root(path)); | |
48 | if (r < 0) | |
49 | return r; | |
50 | } | |
51 | ||
52 | r = sd_bus_message_close_container(reply); | |
53 | if (r < 0) | |
54 | return r; | |
55 | ||
56 | return sd_bus_send(NULL, reply, NULL); | |
57 | } | |
58 | ||
071712b2 YW |
59 | static int method_get_link_by_name(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
60 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
61 | _cleanup_free_ char *path = NULL; | |
62 | Manager *manager = userdata; | |
63 | const char *name; | |
071712b2 | 64 | Link *link; |
f0ad7aed | 65 | int r; |
071712b2 YW |
66 | |
67 | r = sd_bus_message_read(message, "s", &name); | |
68 | if (r < 0) | |
69 | return r; | |
70 | ||
f0ad7aed | 71 | if (link_get_by_name(manager, name, &link) < 0) |
071712b2 YW |
72 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %s not known", name); |
73 | ||
74 | r = sd_bus_message_new_method_return(message, &reply); | |
75 | if (r < 0) | |
76 | return r; | |
77 | ||
78 | path = link_bus_path(link); | |
79 | if (!path) | |
80 | return -ENOMEM; | |
81 | ||
82 | r = sd_bus_message_append(reply, "io", link->ifindex, empty_to_root(path)); | |
83 | if (r < 0) | |
84 | return r; | |
85 | ||
86 | return sd_bus_send(NULL, reply, NULL); | |
87 | } | |
88 | ||
89 | static int method_get_link_by_index(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
90 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
91 | _cleanup_free_ char *path = NULL; | |
92 | Manager *manager = userdata; | |
7695e2cb | 93 | int ifindex, r; |
071712b2 | 94 | Link *link; |
071712b2 | 95 | |
7695e2cb | 96 | r = bus_message_read_ifindex(message, error, &ifindex); |
071712b2 YW |
97 | if (r < 0) |
98 | return r; | |
99 | ||
6eab614d YW |
100 | r = link_get_by_index(manager, ifindex, &link); |
101 | if (r < 0) | |
7695e2cb | 102 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %i not known", ifindex); |
071712b2 YW |
103 | |
104 | r = sd_bus_message_new_method_return(message, &reply); | |
105 | if (r < 0) | |
106 | return r; | |
107 | ||
108 | path = link_bus_path(link); | |
109 | if (!path) | |
110 | return -ENOMEM; | |
111 | ||
112 | r = sd_bus_message_append(reply, "so", link->ifname, empty_to_root(path)); | |
113 | if (r < 0) | |
114 | return r; | |
115 | ||
116 | return sd_bus_send(NULL, reply, NULL); | |
117 | } | |
118 | ||
15761549 YW |
119 | static int call_link_method(Manager *m, sd_bus_message *message, sd_bus_message_handler_t handler, sd_bus_error *error) { |
120 | int ifindex, r; | |
121 | Link *l; | |
122 | ||
123 | assert(m); | |
124 | assert(message); | |
125 | assert(handler); | |
126 | ||
7695e2cb | 127 | r = bus_message_read_ifindex(message, error, &ifindex); |
15761549 YW |
128 | if (r < 0) |
129 | return r; | |
130 | ||
6eab614d YW |
131 | r = link_get_by_index(m, ifindex, &l); |
132 | if (r < 0) | |
15761549 YW |
133 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %i not known", ifindex); |
134 | ||
135 | return handler(message, l, error); | |
136 | } | |
137 | ||
138 | static int bus_method_set_link_ntp_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
139 | return call_link_method(userdata, message, bus_link_method_set_ntp_servers, error); | |
140 | } | |
141 | ||
142 | static int bus_method_set_link_dns_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
143 | return call_link_method(userdata, message, bus_link_method_set_dns_servers, error); | |
144 | } | |
145 | ||
4e11ddfd YW |
146 | static int bus_method_set_link_dns_servers_ex(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
147 | return call_link_method(userdata, message, bus_link_method_set_dns_servers_ex, error); | |
148 | } | |
149 | ||
15761549 YW |
150 | static int bus_method_set_link_domains(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
151 | return call_link_method(userdata, message, bus_link_method_set_domains, error); | |
152 | } | |
153 | ||
154 | static int bus_method_set_link_default_route(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
155 | return call_link_method(userdata, message, bus_link_method_set_default_route, error); | |
156 | } | |
157 | ||
158 | static int bus_method_set_link_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
159 | return call_link_method(userdata, message, bus_link_method_set_llmnr, error); | |
160 | } | |
161 | ||
162 | static int bus_method_set_link_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
163 | return call_link_method(userdata, message, bus_link_method_set_mdns, error); | |
164 | } | |
165 | ||
166 | static int bus_method_set_link_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
167 | return call_link_method(userdata, message, bus_link_method_set_dns_over_tls, error); | |
168 | } | |
169 | ||
170 | static int bus_method_set_link_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
171 | return call_link_method(userdata, message, bus_link_method_set_dnssec, error); | |
172 | } | |
173 | ||
174 | static int bus_method_set_link_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
175 | return call_link_method(userdata, message, bus_link_method_set_dnssec_negative_trust_anchors, error); | |
176 | } | |
177 | ||
178 | static int bus_method_revert_link_ntp(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
179 | return call_link_method(userdata, message, bus_link_method_revert_ntp, error); | |
180 | } | |
181 | ||
182 | static int bus_method_revert_link_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
183 | return call_link_method(userdata, message, bus_link_method_revert_dns, error); | |
184 | } | |
185 | ||
ae65d7db YW |
186 | static int bus_method_renew_link(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
187 | return call_link_method(userdata, message, bus_link_method_renew, error); | |
188 | } | |
189 | ||
90867f6a SS |
190 | static int bus_method_force_renew_link(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
191 | return call_link_method(userdata, message, bus_link_method_force_renew, error); | |
192 | } | |
193 | ||
99b8517c YW |
194 | static int bus_method_reconfigure_link(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
195 | return call_link_method(userdata, message, bus_link_method_reconfigure, error); | |
196 | } | |
197 | ||
7f06b3e1 YW |
198 | static int bus_method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
199 | Manager *manager = userdata; | |
7f06b3e1 YW |
200 | Link *link; |
201 | int r; | |
202 | ||
203 | r = bus_verify_polkit_async(message, CAP_NET_ADMIN, | |
204 | "org.freedesktop.network1.reload", | |
205 | NULL, true, UID_INVALID, | |
206 | &manager->polkit_registry, error); | |
207 | if (r < 0) | |
208 | return r; | |
209 | if (r == 0) | |
210 | return 1; /* Polkit will call us back */ | |
211 | ||
e272b621 YW |
212 | r = netdev_load(manager, true); |
213 | if (r < 0) | |
214 | return r; | |
215 | ||
7f06b3e1 YW |
216 | r = network_reload(manager); |
217 | if (r < 0) | |
218 | return r; | |
219 | ||
6eab614d | 220 | HASHMAP_FOREACH(link, manager->links_by_index) { |
7f80fa12 | 221 | r = link_reconfigure(link, /* force = */ false); |
7f06b3e1 YW |
222 | if (r < 0) |
223 | return r; | |
224 | } | |
225 | ||
226 | return sd_bus_reply_method_return(message, NULL); | |
227 | } | |
228 | ||
54a16efe YW |
229 | static int bus_method_describe_link(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
230 | return call_link_method(userdata, message, bus_link_method_describe, error); | |
231 | } | |
232 | ||
233 | static int bus_method_describe(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
234 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
235 | _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; | |
236 | _cleanup_free_ char *text = NULL; | |
99534007 | 237 | Manager *manager = ASSERT_PTR(userdata); |
54a16efe YW |
238 | int r; |
239 | ||
240 | assert(message); | |
54a16efe YW |
241 | |
242 | r = manager_build_json(manager, &v); | |
243 | if (r < 0) | |
244 | return log_error_errno(r, "Failed to build JSON data: %m"); | |
245 | ||
246 | r = json_variant_format(v, 0, &text); | |
247 | if (r < 0) | |
248 | return log_error_errno(r, "Failed to format JSON data: %m"); | |
249 | ||
250 | r = sd_bus_message_new_method_return(message, &reply); | |
251 | if (r < 0) | |
252 | return r; | |
253 | ||
254 | r = sd_bus_message_append(reply, "s", text); | |
255 | if (r < 0) | |
256 | return r; | |
257 | ||
258 | return sd_bus_send(NULL, reply, NULL); | |
259 | } | |
260 | ||
f2ef8b28 LP |
261 | static int property_get_namespace_id( |
262 | sd_bus *bus, | |
263 | const char *path, | |
264 | const char *interface, | |
265 | const char *property, | |
266 | sd_bus_message *reply, | |
267 | void *userdata, | |
268 | sd_bus_error *error) { | |
269 | ||
270 | uint64_t id = 0; | |
271 | struct stat st; | |
272 | ||
273 | assert(bus); | |
274 | assert(reply); | |
275 | ||
276 | /* Returns our own network namespace ID, i.e. the inode number of /proc/self/ns/net. This allows | |
277 | * unprivileged clients to determine whether they are in the same network namespace as us (note that | |
278 | * access to that path is restricted, thus they can't check directly unless privileged). */ | |
279 | ||
280 | if (stat("/proc/self/ns/net", &st) < 0) { | |
281 | log_warning_errno(errno, "Failed to stat network namespace, ignoring: %m"); | |
282 | id = 0; | |
283 | } else | |
284 | id = st.st_ino; | |
285 | ||
286 | return sd_bus_message_append(reply, "t", id); | |
287 | } | |
288 | ||
6e194652 | 289 | static const sd_bus_vtable manager_vtable[] = { |
e331e246 TG |
290 | SD_BUS_VTABLE_START(0), |
291 | ||
292 | SD_BUS_PROPERTY("OperationalState", "s", property_get_operational_state, offsetof(Manager, operational_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
7f3c07ad YW |
293 | SD_BUS_PROPERTY("CarrierState", "s", property_get_carrier_state, offsetof(Manager, carrier_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
294 | SD_BUS_PROPERTY("AddressState", "s", property_get_address_state, offsetof(Manager, address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
8430841b L |
295 | SD_BUS_PROPERTY("IPv4AddressState", "s", property_get_address_state, offsetof(Manager, ipv4_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
296 | SD_BUS_PROPERTY("IPv6AddressState", "s", property_get_address_state, offsetof(Manager, ipv6_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
bcdcc596 | 297 | SD_BUS_PROPERTY("OnlineState", "s", property_get_online_state, offsetof(Manager, online_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
f2ef8b28 | 298 | SD_BUS_PROPERTY("NamespaceId", "t", property_get_namespace_id, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
e331e246 | 299 | |
23c32ff8 YW |
300 | SD_BUS_METHOD_WITH_ARGS("ListLinks", |
301 | SD_BUS_NO_ARGS, | |
302 | SD_BUS_RESULT("a(iso)", links), | |
303 | method_list_links, | |
304 | SD_BUS_VTABLE_UNPRIVILEGED), | |
305 | SD_BUS_METHOD_WITH_ARGS("GetLinkByName", | |
306 | SD_BUS_ARGS("s", name), | |
307 | SD_BUS_RESULT("i", ifindex, "o", path), | |
308 | method_get_link_by_name, | |
309 | SD_BUS_VTABLE_UNPRIVILEGED), | |
310 | SD_BUS_METHOD_WITH_ARGS("GetLinkByIndex", | |
311 | SD_BUS_ARGS("i", ifindex), | |
312 | SD_BUS_RESULT("s", name, "o", path), | |
313 | method_get_link_by_index, | |
314 | SD_BUS_VTABLE_UNPRIVILEGED), | |
315 | SD_BUS_METHOD_WITH_ARGS("SetLinkNTP", | |
316 | SD_BUS_ARGS("i", ifindex, "as", servers), | |
317 | SD_BUS_NO_RESULT, | |
318 | bus_method_set_link_ntp_servers, | |
319 | SD_BUS_VTABLE_UNPRIVILEGED), | |
320 | SD_BUS_METHOD_WITH_ARGS("SetLinkDNS", | |
321 | SD_BUS_ARGS("i", ifindex, "a(iay)", addresses), | |
322 | SD_BUS_NO_RESULT, | |
323 | bus_method_set_link_dns_servers, | |
324 | SD_BUS_VTABLE_UNPRIVILEGED), | |
325 | SD_BUS_METHOD_WITH_ARGS("SetLinkDNSEx", | |
326 | SD_BUS_ARGS("i", ifindex, "a(iayqs)", addresses), | |
327 | SD_BUS_NO_RESULT, | |
328 | bus_method_set_link_dns_servers_ex, | |
329 | SD_BUS_VTABLE_UNPRIVILEGED), | |
330 | SD_BUS_METHOD_WITH_ARGS("SetLinkDomains", | |
331 | SD_BUS_ARGS("i", ifindex, "a(sb)", domains), | |
332 | SD_BUS_NO_RESULT, | |
333 | bus_method_set_link_domains, | |
334 | SD_BUS_VTABLE_UNPRIVILEGED), | |
335 | SD_BUS_METHOD_WITH_ARGS("SetLinkDefaultRoute", | |
336 | SD_BUS_ARGS("i", ifindex, "b", enable), | |
337 | SD_BUS_NO_RESULT, | |
338 | bus_method_set_link_default_route, | |
339 | SD_BUS_VTABLE_UNPRIVILEGED), | |
340 | SD_BUS_METHOD_WITH_ARGS("SetLinkLLMNR", | |
341 | SD_BUS_ARGS("i", ifindex, "s", mode), | |
342 | SD_BUS_NO_RESULT, | |
343 | bus_method_set_link_llmnr, | |
344 | SD_BUS_VTABLE_UNPRIVILEGED), | |
345 | SD_BUS_METHOD_WITH_ARGS("SetLinkMulticastDNS", | |
346 | SD_BUS_ARGS("i", ifindex, "s", mode), | |
347 | SD_BUS_NO_RESULT, | |
348 | bus_method_set_link_mdns, | |
349 | SD_BUS_VTABLE_UNPRIVILEGED), | |
350 | SD_BUS_METHOD_WITH_ARGS("SetLinkDNSOverTLS", | |
351 | SD_BUS_ARGS("i", ifindex, "s", mode), | |
352 | SD_BUS_NO_RESULT, | |
353 | bus_method_set_link_dns_over_tls, | |
354 | SD_BUS_VTABLE_UNPRIVILEGED), | |
355 | SD_BUS_METHOD_WITH_ARGS("SetLinkDNSSEC", | |
356 | SD_BUS_ARGS("i", ifindex, "s", mode), | |
357 | SD_BUS_NO_RESULT, | |
358 | bus_method_set_link_dnssec, | |
359 | SD_BUS_VTABLE_UNPRIVILEGED), | |
360 | SD_BUS_METHOD_WITH_ARGS("SetLinkDNSSECNegativeTrustAnchors", | |
361 | SD_BUS_ARGS("i", ifindex, "as", names), | |
362 | SD_BUS_NO_RESULT, | |
363 | bus_method_set_link_dnssec_negative_trust_anchors, | |
364 | SD_BUS_VTABLE_UNPRIVILEGED), | |
365 | SD_BUS_METHOD_WITH_ARGS("RevertLinkNTP", | |
366 | SD_BUS_ARGS("i", ifindex), | |
367 | SD_BUS_NO_RESULT, | |
368 | bus_method_revert_link_ntp, | |
369 | SD_BUS_VTABLE_UNPRIVILEGED), | |
370 | SD_BUS_METHOD_WITH_ARGS("RevertLinkDNS", | |
371 | SD_BUS_ARGS("i", ifindex), | |
372 | SD_BUS_NO_RESULT, | |
373 | bus_method_revert_link_dns, | |
374 | SD_BUS_VTABLE_UNPRIVILEGED), | |
375 | SD_BUS_METHOD_WITH_ARGS("RenewLink", | |
376 | SD_BUS_ARGS("i", ifindex), | |
377 | SD_BUS_NO_RESULT, | |
378 | bus_method_renew_link, | |
379 | SD_BUS_VTABLE_UNPRIVILEGED), | |
380 | SD_BUS_METHOD_WITH_ARGS("ForceRenewLink", | |
381 | SD_BUS_ARGS("i", ifindex), | |
382 | SD_BUS_NO_RESULT, | |
383 | bus_method_force_renew_link, | |
384 | SD_BUS_VTABLE_UNPRIVILEGED), | |
385 | SD_BUS_METHOD_WITH_ARGS("ReconfigureLink", | |
386 | SD_BUS_ARGS("i", ifindex), | |
387 | SD_BUS_NO_RESULT, | |
388 | bus_method_reconfigure_link, | |
389 | SD_BUS_VTABLE_UNPRIVILEGED), | |
390 | SD_BUS_METHOD_WITH_ARGS("Reload", | |
391 | SD_BUS_NO_ARGS, | |
392 | SD_BUS_NO_RESULT, | |
393 | bus_method_reload, | |
394 | SD_BUS_VTABLE_UNPRIVILEGED), | |
54a16efe YW |
395 | SD_BUS_METHOD_WITH_ARGS("DescribeLink", |
396 | SD_BUS_ARGS("i", ifindex), | |
397 | SD_BUS_RESULT("s", json), | |
398 | bus_method_describe_link, | |
399 | SD_BUS_VTABLE_UNPRIVILEGED), | |
400 | SD_BUS_METHOD_WITH_ARGS("Describe", | |
401 | SD_BUS_NO_ARGS, | |
402 | SD_BUS_RESULT("s", json), | |
403 | bus_method_describe, | |
404 | SD_BUS_VTABLE_UNPRIVILEGED), | |
37d577c8 | 405 | |
e331e246 TG |
406 | SD_BUS_VTABLE_END |
407 | }; | |
408 | ||
46606fdd | 409 | int manager_send_changed_strv(Manager *manager, char **properties) { |
e331e246 | 410 | assert(manager); |
46606fdd | 411 | assert(properties); |
e331e246 | 412 | |
5dbec9bd | 413 | if (sd_bus_is_ready(manager->bus) <= 0) |
46606fdd | 414 | return 0; |
e331e246 TG |
415 | |
416 | return sd_bus_emit_properties_changed_strv( | |
417 | manager->bus, | |
418 | "/org/freedesktop/network1", | |
419 | "org.freedesktop.network1.Manager", | |
46606fdd YW |
420 | properties); |
421 | } | |
6e194652 YW |
422 | |
423 | const BusObjectImplementation manager_object = { | |
424 | "/org/freedesktop/network1", | |
425 | "org.freedesktop.network1.Manager", | |
426 | .vtables = BUS_VTABLES(manager_vtable), | |
427 | .children = BUS_IMPLEMENTATIONS(&dhcp_server_object, &link_object, &network_object), | |
428 | }; |