Branch data Line data Source code
1 : : /* SPDX-License-Identifier: LGPL-2.1+ */
2 : :
3 : : #include <net/if.h>
4 : :
5 : : #include "missing.h"
6 : : #include "netlink-util.h"
7 : : #include "netdev/bridge.h"
8 : : #include "network-internal.h"
9 : : #include "networkd-manager.h"
10 : : #include "string-table.h"
11 : : #include "vlan-util.h"
12 : :
13 : : static const char* const multicast_router_table[_MULTICAST_ROUTER_MAX] = {
14 : : [MULTICAST_ROUTER_NONE] = "no",
15 : : [MULTICAST_ROUTER_TEMPORARY_QUERY] = "query",
16 : : [MULTICAST_ROUTER_PERMANENT] = "permanent",
17 : : [MULTICAST_ROUTER_TEMPORARY] = "temporary",
18 : : };
19 : :
20 [ # # # # : 0 : DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(multicast_router, MulticastRouter, _MULTICAST_ROUTER_INVALID);
# # ]
21 [ # # # # : 0 : DEFINE_CONFIG_PARSE_ENUM(config_parse_multicast_router, multicast_router, MulticastRouter,
# # # # #
# # # ]
22 : : "Failed to parse bridge multicast router setting");
23 : :
24 : : /* callback for bridge netdev's parameter set */
25 : 0 : static int netdev_bridge_set_handler(sd_netlink *rtnl, sd_netlink_message *m, NetDev *netdev) {
26 : : int r;
27 : :
28 [ # # ]: 0 : assert(netdev);
29 [ # # ]: 0 : assert(m);
30 : :
31 : 0 : r = sd_netlink_message_get_errno(m);
32 [ # # ]: 0 : if (r < 0) {
33 [ # # ]: 0 : log_netdev_warning_errno(netdev, r, "Bridge parameters could not be set: %m");
34 : 0 : return 1;
35 : : }
36 : :
37 [ # # ]: 0 : log_netdev_debug(netdev, "Bridge parameters set success");
38 : :
39 : 0 : return 1;
40 : : }
41 : :
42 : 0 : static int netdev_bridge_post_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
43 : 0 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
44 : : Bridge *b;
45 : : int r;
46 : :
47 [ # # ]: 0 : assert(netdev);
48 : :
49 : 0 : b = BRIDGE(netdev);
50 : :
51 [ # # ]: 0 : assert(b);
52 : :
53 : 0 : r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_NEWLINK, netdev->ifindex);
54 [ # # ]: 0 : if (r < 0)
55 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not allocate RTM_SETLINK message: %m");
56 : :
57 : 0 : r = sd_netlink_message_set_flags(req, NLM_F_REQUEST | NLM_F_ACK);
58 [ # # ]: 0 : if (r < 0)
59 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not set netlink flags: %m");
60 : :
61 : 0 : r = sd_netlink_message_open_container(req, IFLA_LINKINFO);
62 [ # # ]: 0 : if (r < 0)
63 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m");
64 : :
65 : 0 : r = sd_netlink_message_open_container_union(req, IFLA_INFO_DATA, netdev_kind_to_string(netdev->kind));
66 [ # # ]: 0 : if (r < 0)
67 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");
68 : :
69 : : /* convert to jiffes */
70 [ # # ]: 0 : if (b->forward_delay != USEC_INFINITY) {
71 : 0 : r = sd_netlink_message_append_u32(req, IFLA_BR_FORWARD_DELAY, usec_to_jiffies(b->forward_delay));
72 [ # # ]: 0 : if (r < 0)
73 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_FORWARD_DELAY attribute: %m");
74 : : }
75 : :
76 [ # # ]: 0 : if (b->hello_time > 0) {
77 : 0 : r = sd_netlink_message_append_u32(req, IFLA_BR_HELLO_TIME, usec_to_jiffies(b->hello_time));
78 [ # # ]: 0 : if (r < 0)
79 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_HELLO_TIME attribute: %m");
80 : : }
81 : :
82 [ # # ]: 0 : if (b->max_age > 0) {
83 : 0 : r = sd_netlink_message_append_u32(req, IFLA_BR_MAX_AGE, usec_to_jiffies(b->max_age));
84 [ # # ]: 0 : if (r < 0)
85 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MAX_AGE attribute: %m");
86 : : }
87 : :
88 [ # # ]: 0 : if (b->ageing_time != USEC_INFINITY) {
89 : 0 : r = sd_netlink_message_append_u32(req, IFLA_BR_AGEING_TIME, usec_to_jiffies(b->ageing_time));
90 [ # # ]: 0 : if (r < 0)
91 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_AGEING_TIME attribute: %m");
92 : : }
93 : :
94 [ # # ]: 0 : if (b->priority > 0) {
95 : 0 : r = sd_netlink_message_append_u16(req, IFLA_BR_PRIORITY, b->priority);
96 [ # # ]: 0 : if (r < 0)
97 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_PRIORITY attribute: %m");
98 : : }
99 : :
100 [ # # ]: 0 : if (b->group_fwd_mask > 0) {
101 : 0 : r = sd_netlink_message_append_u16(req, IFLA_BR_GROUP_FWD_MASK, b->group_fwd_mask);
102 [ # # ]: 0 : if (r < 0)
103 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_GROUP_FWD_MASK attribute: %m");
104 : : }
105 : :
106 [ # # ]: 0 : if (b->default_pvid != VLANID_INVALID) {
107 : 0 : r = sd_netlink_message_append_u16(req, IFLA_BR_VLAN_DEFAULT_PVID, b->default_pvid);
108 [ # # ]: 0 : if (r < 0)
109 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_DEFAULT_PVID attribute: %m");
110 : : }
111 : :
112 [ # # ]: 0 : if (b->mcast_querier >= 0) {
113 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_QUERIER, b->mcast_querier);
114 [ # # ]: 0 : if (r < 0)
115 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_QUERIER attribute: %m");
116 : : }
117 : :
118 [ # # ]: 0 : if (b->mcast_snooping >= 0) {
119 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_SNOOPING, b->mcast_snooping);
120 [ # # ]: 0 : if (r < 0)
121 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_SNOOPING attribute: %m");
122 : : }
123 : :
124 [ # # ]: 0 : if (b->vlan_filtering >= 0) {
125 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BR_VLAN_FILTERING, b->vlan_filtering);
126 [ # # ]: 0 : if (r < 0)
127 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_FILTERING attribute: %m");
128 : : }
129 : :
130 [ # # ]: 0 : if (b->stp >= 0) {
131 : 0 : r = sd_netlink_message_append_u32(req, IFLA_BR_STP_STATE, b->stp);
132 [ # # ]: 0 : if (r < 0)
133 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_STP_STATE attribute: %m");
134 : : }
135 : :
136 [ # # ]: 0 : if (b->igmp_version > 0) {
137 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_IGMP_VERSION, b->igmp_version);
138 [ # # ]: 0 : if (r < 0)
139 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_IGMP_VERSION attribute: %m");
140 : : }
141 : :
142 : 0 : r = sd_netlink_message_close_container(req);
143 [ # # ]: 0 : if (r < 0)
144 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m");
145 : :
146 : 0 : r = sd_netlink_message_close_container(req);
147 [ # # ]: 0 : if (r < 0)
148 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");
149 : :
150 : 0 : r = netlink_call_async(netdev->manager->rtnl, NULL, req, netdev_bridge_set_handler,
151 : : netdev_destroy_callback, netdev);
152 [ # # ]: 0 : if (r < 0)
153 [ # # ]: 0 : return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m");
154 : :
155 : 0 : netdev_ref(netdev);
156 : :
157 : 0 : return r;
158 : : }
159 : :
160 : 0 : static int link_set_bridge_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
161 : : int r;
162 : :
163 [ # # ]: 0 : assert(m);
164 [ # # ]: 0 : assert(link);
165 [ # # ]: 0 : assert(link->ifname);
166 : :
167 [ # # # # ]: 0 : if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
168 : 0 : return 1;
169 : :
170 : 0 : r = sd_netlink_message_get_errno(m);
171 [ # # ]: 0 : if (r < 0) {
172 [ # # # # ]: 0 : log_link_warning_errno(link, r, "Could not set bridge interface: %m");
173 : 0 : return 1;
174 : : }
175 : :
176 : 0 : return 1;
177 : : }
178 : :
179 : 0 : int link_set_bridge(Link *link) {
180 : 0 : _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
181 : : int r;
182 : :
183 [ # # ]: 0 : assert(link);
184 [ # # ]: 0 : assert(link->network);
185 : :
186 : 0 : r = sd_rtnl_message_new_link(link->manager->rtnl, &req, RTM_SETLINK, link->ifindex);
187 [ # # ]: 0 : if (r < 0)
188 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not allocate RTM_SETLINK message: %m");
189 : :
190 : 0 : r = sd_rtnl_message_link_set_family(req, PF_BRIDGE);
191 [ # # ]: 0 : if (r < 0)
192 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not set message family: %m");
193 : :
194 : 0 : r = sd_netlink_message_open_container(req, IFLA_PROTINFO);
195 [ # # ]: 0 : if (r < 0)
196 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_PROTINFO attribute: %m");
197 : :
198 [ # # ]: 0 : if (link->network->use_bpdu >= 0) {
199 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_GUARD, link->network->use_bpdu);
200 [ # # ]: 0 : if (r < 0)
201 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_GUARD attribute: %m");
202 : : }
203 : :
204 [ # # ]: 0 : if (link->network->hairpin >= 0) {
205 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_MODE, link->network->hairpin);
206 [ # # ]: 0 : if (r < 0)
207 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_MODE attribute: %m");
208 : : }
209 : :
210 [ # # ]: 0 : if (link->network->fast_leave >= 0) {
211 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_FAST_LEAVE, link->network->fast_leave);
212 [ # # ]: 0 : if (r < 0)
213 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_FAST_LEAVE attribute: %m");
214 : : }
215 : :
216 [ # # ]: 0 : if (link->network->allow_port_to_be_root >= 0) {
217 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_PROTECT, link->network->allow_port_to_be_root);
218 [ # # ]: 0 : if (r < 0)
219 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_PROTECT attribute: %m");
220 : : }
221 : :
222 [ # # ]: 0 : if (link->network->unicast_flood >= 0) {
223 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_UNICAST_FLOOD, link->network->unicast_flood);
224 [ # # ]: 0 : if (r < 0)
225 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_UNICAST_FLOOD attribute: %m");
226 : : }
227 : :
228 [ # # ]: 0 : if (link->network->multicast_flood >= 0) {
229 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_MCAST_FLOOD, link->network->multicast_flood);
230 [ # # ]: 0 : if (r < 0)
231 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_MCAST_FLOOD attribute: %m");
232 : : }
233 : :
234 [ # # ]: 0 : if (link->network->multicast_to_unicast >= 0) {
235 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_MCAST_TO_UCAST, link->network->multicast_to_unicast);
236 [ # # ]: 0 : if (r < 0)
237 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_MCAST_TO_UCAST attribute: %m");
238 : : }
239 : :
240 [ # # ]: 0 : if (link->network->neighbor_suppression >= 0) {
241 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_NEIGH_SUPPRESS, link->network->neighbor_suppression);
242 [ # # ]: 0 : if (r < 0)
243 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_NEIGH_SUPPRESS attribute: %m");
244 : : }
245 : :
246 [ # # ]: 0 : if (link->network->learning >= 0) {
247 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_LEARNING, link->network->learning);
248 [ # # ]: 0 : if (r < 0)
249 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_LEARNING attribute: %m");
250 : : }
251 : :
252 [ # # ]: 0 : if (link->network->bridge_proxy_arp >= 0) {
253 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_PROXYARP, link->network->bridge_proxy_arp);
254 [ # # ]: 0 : if (r < 0)
255 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_PROXYARP attribute: %m");
256 : : }
257 : :
258 [ # # ]: 0 : if (link->network->bridge_proxy_arp_wifi >= 0) {
259 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_PROXYARP_WIFI, link->network->bridge_proxy_arp_wifi);
260 [ # # ]: 0 : if (r < 0)
261 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_PROXYARP_WIFI attribute: %m");
262 : : }
263 : :
264 [ # # ]: 0 : if (link->network->cost != 0) {
265 : 0 : r = sd_netlink_message_append_u32(req, IFLA_BRPORT_COST, link->network->cost);
266 [ # # ]: 0 : if (r < 0)
267 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_COST attribute: %m");
268 : : }
269 : :
270 [ # # ]: 0 : if (link->network->priority != LINK_BRIDGE_PORT_PRIORITY_INVALID) {
271 : 0 : r = sd_netlink_message_append_u16(req, IFLA_BRPORT_PRIORITY, link->network->priority);
272 [ # # ]: 0 : if (r < 0)
273 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_PRIORITY attribute: %m");
274 : : }
275 : :
276 [ # # ]: 0 : if (link->network->multicast_router != _MULTICAST_ROUTER_INVALID) {
277 : 0 : r = sd_netlink_message_append_u8(req, IFLA_BRPORT_MULTICAST_ROUTER, link->network->multicast_router);
278 [ # # ]: 0 : if (r < 0)
279 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_MULTICAST_ROUTER attribute: %m");
280 : : }
281 : :
282 : 0 : r = sd_netlink_message_close_container(req);
283 [ # # ]: 0 : if (r < 0)
284 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not append IFLA_LINKINFO attribute: %m");
285 : :
286 : 0 : r = netlink_call_async(link->manager->rtnl, NULL, req, link_set_bridge_handler,
287 : : link_netlink_destroy_callback, link);
288 [ # # ]: 0 : if (r < 0)
289 [ # # # # ]: 0 : return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
290 : :
291 : 0 : link_ref(link);
292 : :
293 : 0 : return r;
294 : : }
295 : :
296 : 0 : int config_parse_bridge_igmp_version(
297 : : const char *unit,
298 : : const char *filename,
299 : : unsigned line,
300 : : const char *section,
301 : : unsigned section_line,
302 : : const char *lvalue,
303 : : int ltype,
304 : : const char *rvalue,
305 : : void *data,
306 : : void *userdata) {
307 : :
308 : 0 : Bridge *b = userdata;
309 : : uint8_t u;
310 : : int r;
311 : :
312 [ # # ]: 0 : assert(filename);
313 [ # # ]: 0 : assert(lvalue);
314 [ # # ]: 0 : assert(rvalue);
315 [ # # ]: 0 : assert(data);
316 : :
317 [ # # ]: 0 : if (isempty(rvalue)) {
318 : 0 : b->igmp_version = 0; /* 0 means unset. */
319 : 0 : return 0;
320 : : }
321 : :
322 : 0 : r = safe_atou8(rvalue, &u);
323 [ # # ]: 0 : if (r < 0) {
324 [ # # ]: 0 : log_syntax(unit, LOG_ERR, filename, line, r,
325 : : "Failed to parse bridge's multicast IGMP version number '%s', ignoring assignment: %m",
326 : : rvalue);
327 : 0 : return 0;
328 : : }
329 [ # # # # ]: 0 : if (!IN_SET(u, 2, 3)) {
330 [ # # ]: 0 : log_syntax(unit, LOG_ERR, filename, line, 0,
331 : : "Invalid bridge's multicast IGMP version number '%s', ignoring assignment.", rvalue);
332 : 0 : return 0;
333 : : }
334 : :
335 : 0 : b->igmp_version = u;
336 : :
337 : 0 : return 0;
338 : : }
339 : :
340 : 0 : static void bridge_init(NetDev *n) {
341 : : Bridge *b;
342 : :
343 : 0 : b = BRIDGE(n);
344 : :
345 [ # # ]: 0 : assert(b);
346 : :
347 : 0 : b->mcast_querier = -1;
348 : 0 : b->mcast_snooping = -1;
349 : 0 : b->vlan_filtering = -1;
350 : 0 : b->stp = -1;
351 : 0 : b->default_pvid = VLANID_INVALID;
352 : 0 : b->forward_delay = USEC_INFINITY;
353 : 0 : b->ageing_time = USEC_INFINITY;
354 : 0 : }
355 : :
356 : : const NetDevVTable bridge_vtable = {
357 : : .object_size = sizeof(Bridge),
358 : : .init = bridge_init,
359 : : .sections = "Match\0NetDev\0Bridge\0",
360 : : .post_create = netdev_bridge_post_create,
361 : : .create_type = NETDEV_CREATE_MASTER,
362 : : };
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