blob: e99037c6f7b7b7e1073375d320f4fb186c4e8b38 [file] [log] [blame]
Stephen Hemminger11dc1f32006-05-25 16:00:12 -07001/*
2 * Bridge netlink control interface
3 *
4 * Authors:
5 * Stephen Hemminger <shemminger@osdl.org>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12
13#include <linux/kernel.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090014#include <linux/slab.h>
stephen hemmingerbb900b22011-04-04 14:03:32 +000015#include <linux/etherdevice.h>
Thomas Graf32fe21c2007-03-22 11:59:03 -070016#include <net/rtnetlink.h>
Eric W. Biederman881d9662007-09-17 11:56:21 -070017#include <net/net_namespace.h>
Denis V. Lunevb8542722007-12-01 00:21:31 +110018#include <net/sock.h>
Vlad Yasevich407af322013-02-13 12:00:12 +000019#include <uapi/linux/if_bridge.h>
stephen hemmingerbb900b22011-04-04 14:03:32 +000020
Stephen Hemminger11dc1f32006-05-25 16:00:12 -070021#include "br_private.h"
Vitalii Demianetsb03b6dd2011-11-25 00:16:37 +000022#include "br_private_stp.h"
Stephen Hemminger11dc1f32006-05-25 16:00:12 -070023
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020024static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg,
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +020025 u32 filter_mask)
Roopa Prabhufed0a152015-02-25 23:55:40 -080026{
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020027 struct net_bridge_vlan *v;
28 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +020029 u16 flags, pvid;
Roopa Prabhufed0a152015-02-25 23:55:40 -080030 int num_vlans = 0;
31
Roopa Prabhufed0a152015-02-25 23:55:40 -080032 if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
33 return 0;
34
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +020035 pvid = br_get_pvid(vg);
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020036 /* Count number of vlan infos */
Nikolay Aleksandrov586c2b52015-10-02 15:05:10 +020037 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
Roopa Prabhufed0a152015-02-25 23:55:40 -080038 flags = 0;
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020039 /* only a context, bridge vlan not activated */
40 if (!br_vlan_should_use(v))
41 continue;
42 if (v->vid == pvid)
Roopa Prabhufed0a152015-02-25 23:55:40 -080043 flags |= BRIDGE_VLAN_INFO_PVID;
44
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020045 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
Roopa Prabhufed0a152015-02-25 23:55:40 -080046 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
47
48 if (vid_range_start == 0) {
49 goto initvars;
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020050 } else if ((v->vid - vid_range_end) == 1 &&
Roopa Prabhufed0a152015-02-25 23:55:40 -080051 flags == vid_range_flags) {
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020052 vid_range_end = v->vid;
Roopa Prabhufed0a152015-02-25 23:55:40 -080053 continue;
54 } else {
55 if ((vid_range_end - vid_range_start) > 0)
56 num_vlans += 2;
57 else
58 num_vlans += 1;
59 }
60initvars:
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020061 vid_range_start = v->vid;
62 vid_range_end = v->vid;
Roopa Prabhufed0a152015-02-25 23:55:40 -080063 vid_range_flags = flags;
64 }
65
66 if (vid_range_start != 0) {
67 if ((vid_range_end - vid_range_start) > 0)
68 num_vlans += 2;
69 else
70 num_vlans += 1;
71 }
72
73 return num_vlans;
74}
75
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020076static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg,
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +020077 u32 filter_mask)
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020078{
Nikolay Aleksandrov586c2b52015-10-02 15:05:10 +020079 int num_vlans;
80
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020081 if (!vg)
82 return 0;
83
84 if (filter_mask & RTEXT_FILTER_BRVLAN)
85 return vg->num_vlans;
86
Nikolay Aleksandrov586c2b52015-10-02 15:05:10 +020087 rcu_read_lock();
88 num_vlans = __get_num_vlan_infos(vg, filter_mask);
89 rcu_read_unlock();
90
91 return num_vlans;
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020092}
93
Roopa Prabhufed0a152015-02-25 23:55:40 -080094static size_t br_get_link_af_size_filtered(const struct net_device *dev,
95 u32 filter_mask)
Roopa Prabhub7853d72015-02-21 20:21:51 -080096{
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +020097 struct net_bridge_vlan_group *vg = NULL;
98 struct net_bridge_port *p;
99 struct net_bridge *br;
Roopa Prabhufed0a152015-02-25 23:55:40 -0800100 int num_vlan_infos;
Roopa Prabhub7853d72015-02-21 20:21:51 -0800101
Johannes Berg2f56f6b2015-03-03 16:02:16 +0100102 rcu_read_lock();
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200103 if (br_port_exists(dev)) {
104 p = br_port_get_rcu(dev);
Nikolay Aleksandrov907b1e62015-10-12 21:47:02 +0200105 vg = nbp_vlan_group_rcu(p);
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200106 } else if (dev->priv_flags & IFF_EBRIDGE) {
107 br = netdev_priv(dev);
Nikolay Aleksandrov907b1e62015-10-12 21:47:02 +0200108 vg = br_vlan_group_rcu(br);
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200109 }
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200110 num_vlan_infos = br_get_num_vlan_infos(vg, filter_mask);
Johannes Berg2f56f6b2015-03-03 16:02:16 +0100111 rcu_read_unlock();
Roopa Prabhub7853d72015-02-21 20:21:51 -0800112
Roopa Prabhub7853d72015-02-21 20:21:51 -0800113 /* Each VLAN is returned in bridge_vlan_info along with flags */
Roopa Prabhufed0a152015-02-25 23:55:40 -0800114 return num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info));
Roopa Prabhub7853d72015-02-21 20:21:51 -0800115}
116
stephen hemminger25c71c72012-11-13 07:53:05 +0000117static inline size_t br_port_info_size(void)
118{
119 return nla_total_size(1) /* IFLA_BRPORT_STATE */
120 + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */
121 + nla_total_size(4) /* IFLA_BRPORT_COST */
122 + nla_total_size(1) /* IFLA_BRPORT_MODE */
stephen hemmingera2e01a62012-11-13 07:53:07 +0000123 + nla_total_size(1) /* IFLA_BRPORT_GUARD */
stephen hemminger1007dd12012-11-13 07:53:08 +0000124 + nla_total_size(1) /* IFLA_BRPORT_PROTECT */
stephen hemminger3da889b2013-03-11 13:52:17 +0000125 + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
Vlad Yasevich9ba18892013-06-05 10:08:00 -0400126 + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
Vlad Yasevich867a5942013-06-05 10:08:01 -0400127 + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
Nikolay Aleksandrov355b9f92015-08-04 19:06:32 +0200128 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
Nikolay Aleksandrov786c2072015-08-04 19:06:33 +0200129 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
Nikolay Aleksandrov4ebc7662015-10-06 14:11:55 +0200130 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
Nikolay Aleksandrov80df9a22015-10-06 14:11:56 +0200131 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
Nikolay Aleksandrov96f94e72015-10-06 14:11:57 +0200132 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
133 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
Nikolay Aleksandrov42d452c2015-10-06 14:11:58 +0200134 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */
135 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */
Nikolay Aleksandrove08e8382015-10-06 14:11:59 +0200136 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
137 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +0200138 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
139 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
140 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */
Nikolay Aleksandrov5d6ae472015-10-06 14:12:02 +0200141#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
142 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */
143#endif
stephen hemminger25c71c72012-11-13 07:53:05 +0000144 + 0;
145}
146
Roopa Prabhufed0a152015-02-25 23:55:40 -0800147static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
Thomas Graf339bf982006-11-10 14:10:15 -0800148{
149 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
stephen hemminger25c71c72012-11-13 07:53:05 +0000150 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
151 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
152 + nla_total_size(4) /* IFLA_MASTER */
153 + nla_total_size(4) /* IFLA_MTU */
154 + nla_total_size(4) /* IFLA_LINK */
155 + nla_total_size(1) /* IFLA_OPERSTATE */
Roopa Prabhub7853d72015-02-21 20:21:51 -0800156 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
Roopa Prabhufed0a152015-02-25 23:55:40 -0800157 + nla_total_size(br_get_link_af_size_filtered(dev,
158 filter_mask)); /* IFLA_AF_SPEC */
stephen hemminger25c71c72012-11-13 07:53:05 +0000159}
160
161static int br_port_fill_attrs(struct sk_buff *skb,
162 const struct net_bridge_port *p)
163{
164 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
Nikolay Aleksandrov61c0a9a2015-10-06 14:12:00 +0200165 u64 timerval;
stephen hemminger25c71c72012-11-13 07:53:05 +0000166
167 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
168 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
169 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
stephen hemmingera2e01a62012-11-13 07:53:07 +0000170 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
stephen hemminger1007dd12012-11-13 07:53:08 +0000171 nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
Nikolay Aleksandrovb6cb5ac2016-08-31 15:36:52 +0200172 nla_put_u8(skb, IFLA_BRPORT_PROTECT,
173 !!(p->flags & BR_ROOT_BLOCK)) ||
174 nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE,
175 !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
Vlad Yasevich867a5942013-06-05 10:08:01 -0400176 nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
Nikolay Aleksandrovb6cb5ac2016-08-31 15:36:52 +0200177 nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD,
178 !!(p->flags & BR_FLOOD)) ||
179 nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD,
180 !!(p->flags & BR_MCAST_FLOOD)) ||
Jouni Malinen842a9ae2015-03-04 12:54:21 +0200181 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
182 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
Nikolay Aleksandrov4ebc7662015-10-06 14:11:55 +0200183 !!(p->flags & BR_PROXYARP_WIFI)) ||
184 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
Nikolay Aleksandrov80df9a22015-10-06 14:11:56 +0200185 &p->designated_root) ||
186 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
Nikolay Aleksandrov96f94e72015-10-06 14:11:57 +0200187 &p->designated_bridge) ||
188 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
Nikolay Aleksandrov42d452c2015-10-06 14:11:58 +0200189 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
190 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
Nikolay Aleksandrove08e8382015-10-06 14:11:59 +0200191 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
192 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
193 p->topology_change_ack) ||
194 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending))
stephen hemminger25c71c72012-11-13 07:53:05 +0000195 return -EMSGSIZE;
196
Nikolay Aleksandrov61c0a9a2015-10-06 14:12:00 +0200197 timerval = br_timer_value(&p->message_age_timer);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +0200198 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
199 IFLA_BRPORT_PAD))
Nikolay Aleksandrov61c0a9a2015-10-06 14:12:00 +0200200 return -EMSGSIZE;
201 timerval = br_timer_value(&p->forward_delay_timer);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +0200202 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
203 IFLA_BRPORT_PAD))
Nikolay Aleksandrov61c0a9a2015-10-06 14:12:00 +0200204 return -EMSGSIZE;
205 timerval = br_timer_value(&p->hold_timer);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +0200206 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
207 IFLA_BRPORT_PAD))
Nikolay Aleksandrov61c0a9a2015-10-06 14:12:00 +0200208 return -EMSGSIZE;
209
Nikolay Aleksandrov5d6ae472015-10-06 14:12:02 +0200210#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
211 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
212 p->multicast_router))
213 return -EMSGSIZE;
214#endif
215
stephen hemminger25c71c72012-11-13 07:53:05 +0000216 return 0;
Thomas Graf339bf982006-11-10 14:10:15 -0800217}
218
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800219static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
220 u16 vid_end, u16 flags)
221{
222 struct bridge_vlan_info vinfo;
223
224 if ((vid_end - vid_start) > 0) {
225 /* add range to skb */
226 vinfo.vid = vid_start;
227 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
228 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
229 sizeof(vinfo), &vinfo))
230 goto nla_put_failure;
231
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800232 vinfo.vid = vid_end;
233 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
234 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
235 sizeof(vinfo), &vinfo))
236 goto nla_put_failure;
237 } else {
238 vinfo.vid = vid_start;
239 vinfo.flags = flags;
240 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
241 sizeof(vinfo), &vinfo))
242 goto nla_put_failure;
243 }
244
245 return 0;
246
247nla_put_failure:
248 return -EMSGSIZE;
249}
250
251static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200252 struct net_bridge_vlan_group *vg)
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800253{
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200254 struct net_bridge_vlan *v;
255 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200256 u16 flags, pvid;
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800257 int err = 0;
258
259 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
260 * and mark vlan info with begin and end flags
261 * if vlaninfo represents a range
262 */
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200263 pvid = br_get_pvid(vg);
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200264 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800265 flags = 0;
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200266 if (!br_vlan_should_use(v))
267 continue;
268 if (v->vid == pvid)
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800269 flags |= BRIDGE_VLAN_INFO_PVID;
270
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200271 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800272 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
273
274 if (vid_range_start == 0) {
275 goto initvars;
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200276 } else if ((v->vid - vid_range_end) == 1 &&
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800277 flags == vid_range_flags) {
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200278 vid_range_end = v->vid;
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800279 continue;
280 } else {
281 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
282 vid_range_end,
283 vid_range_flags);
284 if (err)
285 return err;
286 }
287
288initvars:
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200289 vid_range_start = v->vid;
290 vid_range_end = v->vid;
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800291 vid_range_flags = flags;
292 }
293
Roopa Prabhu0fe6de42015-01-12 16:25:28 -0800294 if (vid_range_start != 0) {
295 /* Call it once more to send any left over vlans */
296 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
297 vid_range_end,
298 vid_range_flags);
299 if (err)
300 return err;
301 }
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800302
303 return 0;
304}
305
306static int br_fill_ifvlaninfo(struct sk_buff *skb,
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200307 struct net_bridge_vlan_group *vg)
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800308{
309 struct bridge_vlan_info vinfo;
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200310 struct net_bridge_vlan *v;
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200311 u16 pvid;
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800312
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200313 pvid = br_get_pvid(vg);
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200314 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200315 if (!br_vlan_should_use(v))
316 continue;
317
318 vinfo.vid = v->vid;
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800319 vinfo.flags = 0;
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200320 if (v->vid == pvid)
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800321 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
322
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200323 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800324 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
325
326 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
327 sizeof(vinfo), &vinfo))
328 goto nla_put_failure;
329 }
330
331 return 0;
332
333nla_put_failure:
334 return -EMSGSIZE;
335}
336
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700337/*
338 * Create one netlink message for one interface
339 * Contains port and master info as well as carrier and bridge state.
340 */
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000341static int br_fill_ifinfo(struct sk_buff *skb,
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200342 struct net_bridge_port *port,
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000343 u32 pid, u32 seq, int event, unsigned int flags,
344 u32 filter_mask, const struct net_device *dev)
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700345{
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200346 struct net_bridge *br;
Thomas Graf74685962006-11-20 16:20:22 -0800347 struct ifinfomsg *hdr;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700348 struct nlmsghdr *nlh;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700349 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700350
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000351 if (port)
352 br = port->br;
353 else
354 br = netdev_priv(dev);
355
stephen hemminger28a16c92010-05-10 09:31:09 +0000356 br_debug(br, "br_fill_info event %d port %s master %s\n",
357 event, dev->name, br->dev->name);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700358
Thomas Graf74685962006-11-20 16:20:22 -0800359 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
360 if (nlh == NULL)
Patrick McHardy26932562007-01-31 23:16:40 -0800361 return -EMSGSIZE;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700362
Thomas Graf74685962006-11-20 16:20:22 -0800363 hdr = nlmsg_data(nlh);
364 hdr->ifi_family = AF_BRIDGE;
365 hdr->__ifi_pad = 0;
366 hdr->ifi_type = dev->type;
367 hdr->ifi_index = dev->ifindex;
368 hdr->ifi_flags = dev_get_flags(dev);
369 hdr->ifi_change = 0;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700370
David S. Miller2eb812e2012-04-01 20:49:54 -0400371 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
372 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
373 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
374 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
375 (dev->addr_len &&
376 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
Nicolas Dichtela54acb32015-04-02 17:07:00 +0200377 (dev->ifindex != dev_get_iflink(dev) &&
378 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
David S. Miller2eb812e2012-04-01 20:49:54 -0400379 goto nla_put_failure;
stephen hemminger25c71c72012-11-13 07:53:05 +0000380
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000381 if (event == RTM_NEWLINK && port) {
stephen hemminger25c71c72012-11-13 07:53:05 +0000382 struct nlattr *nest
383 = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
384
385 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
386 goto nla_put_failure;
387 nla_nest_end(skb, nest);
388 }
389
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000390 /* Check if the VID information is requested */
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800391 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
392 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200393 struct net_bridge_vlan_group *vg;
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800394 struct nlattr *af;
395 int err;
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000396
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200397 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
398 rcu_read_lock();
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200399 if (port)
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200400 vg = nbp_vlan_group_rcu(port);
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200401 else
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200402 vg = br_vlan_group_rcu(br);
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000403
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200404 if (!vg || !vg->num_vlans) {
405 rcu_read_unlock();
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000406 goto done;
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200407 }
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000408 af = nla_nest_start(skb, IFLA_AF_SPEC);
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200409 if (!af) {
410 rcu_read_unlock();
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000411 goto nla_put_failure;
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200412 }
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800413 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200414 err = br_fill_ifvlaninfo_compressed(skb, vg);
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800415 else
Nikolay Aleksandrov77751ee2015-09-30 20:16:53 +0200416 err = br_fill_ifvlaninfo(skb, vg);
Nikolay Aleksandrove9c953e2015-10-12 21:47:03 +0200417 rcu_read_unlock();
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800418 if (err)
419 goto nla_put_failure;
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +0000420 nla_nest_end(skb, af);
421 }
422
423done:
Johannes Berg053c0952015-01-16 22:09:00 +0100424 nlmsg_end(skb, nlh);
425 return 0;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700426
Thomas Graf74685962006-11-20 16:20:22 -0800427nla_put_failure:
Patrick McHardy26932562007-01-31 23:16:40 -0800428 nlmsg_cancel(skb, nlh);
429 return -EMSGSIZE;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700430}
431
432/*
433 * Notify listeners of a change in port information
434 */
435void br_ifinfo_notify(int event, struct net_bridge_port *port)
436{
Vlad Yasevich407af322013-02-13 12:00:12 +0000437 struct net *net;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700438 struct sk_buff *skb;
Thomas Graf280a3062006-08-15 00:36:28 -0700439 int err = -ENOBUFS;
Roopa Prabhufed0a152015-02-25 23:55:40 -0800440 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700441
Vlad Yasevich407af322013-02-13 12:00:12 +0000442 if (!port)
443 return;
444
445 net = dev_net(port->dev);
stephen hemminger28a16c92010-05-10 09:31:09 +0000446 br_debug(port->br, "port %u(%s) event %d\n",
Eric Dumazet95c96172012-04-15 05:58:06 +0000447 (unsigned int)port->port_no, port->dev->name, event);
stephen hemminger28a16c92010-05-10 09:31:09 +0000448
Roopa Prabhufed0a152015-02-25 23:55:40 -0800449 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
Thomas Graf280a3062006-08-15 00:36:28 -0700450 if (skb == NULL)
451 goto errout;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700452
Roopa Prabhufed0a152015-02-25 23:55:40 -0800453 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
Patrick McHardy26932562007-01-31 23:16:40 -0800454 if (err < 0) {
455 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
456 WARN_ON(err == -EMSGSIZE);
457 kfree_skb(skb);
458 goto errout;
459 }
Pablo Neira Ayuso1ce85fe2009-02-24 23:18:28 -0800460 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
461 return;
Thomas Graf280a3062006-08-15 00:36:28 -0700462errout:
tanxiaojun87e823b2013-12-19 13:28:10 +0800463 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700464}
465
Vlad Yasevich407af322013-02-13 12:00:12 +0000466
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700467/*
468 * Dump information about all ports, in response to GETLINK
469 */
John Fastabende5a55a82012-10-24 08:12:57 +0000470int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
Nicolas Dichtel46c264d2015-04-28 18:33:49 +0200471 struct net_device *dev, u32 filter_mask, int nlflags)
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700472{
Hong Zhiguo1fb17542013-09-14 22:42:27 +0800473 struct net_bridge_port *port = br_port_get_rtnl(dev);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700474
Roopa Prabhu36cd0ff2015-01-10 07:31:14 -0800475 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
476 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
Dan Carpenter1b846f92015-01-21 12:22:35 +0300477 return 0;
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000478
Nicolas Dichtel46c264d2015-04-28 18:33:49 +0200479 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
Dan Carpenter1b846f92015-01-21 12:22:35 +0300480 filter_mask, dev);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700481}
482
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800483static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
484 int cmd, struct bridge_vlan_info *vinfo)
485{
486 int err = 0;
487
488 switch (cmd) {
489 case RTM_SETLINK:
490 if (p) {
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200491 /* if the MASTER flag is set this will act on the global
492 * per-VLAN entry as well
493 */
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800494 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags);
495 if (err)
496 break;
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800497 } else {
Nikolay Aleksandrov2594e902015-09-25 19:00:11 +0200498 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800499 err = br_vlan_add(br, vinfo->vid, vinfo->flags);
500 }
501 break;
502
503 case RTM_DELLINK:
504 if (p) {
505 nbp_vlan_delete(p, vinfo->vid);
506 if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
507 br_vlan_delete(p->br, vinfo->vid);
508 } else {
509 br_vlan_delete(br, vinfo->vid);
510 }
511 break;
512 }
513
514 return err;
515}
Vlad Yasevich407af322013-02-13 12:00:12 +0000516
517static int br_afspec(struct net_bridge *br,
518 struct net_bridge_port *p,
519 struct nlattr *af_spec,
520 int cmd)
521{
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800522 struct bridge_vlan_info *vinfo_start = NULL;
523 struct bridge_vlan_info *vinfo = NULL;
524 struct nlattr *attr;
Vlad Yasevich407af322013-02-13 12:00:12 +0000525 int err = 0;
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800526 int rem;
Vlad Yasevich407af322013-02-13 12:00:12 +0000527
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800528 nla_for_each_nested(attr, af_spec, rem) {
529 if (nla_type(attr) != IFLA_BRIDGE_VLAN_INFO)
530 continue;
531 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
Vlad Yasevich407af322013-02-13 12:00:12 +0000532 return -EINVAL;
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800533 vinfo = nla_data(attr);
Nikolay Aleksandrov462e1ea2015-07-02 05:48:17 -0700534 if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
535 return -EINVAL;
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800536 if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
537 if (vinfo_start)
538 return -EINVAL;
539 vinfo_start = vinfo;
Nikolay Aleksandrov6623c602015-10-11 12:49:56 +0200540 /* don't allow range of pvids */
541 if (vinfo_start->flags & BRIDGE_VLAN_INFO_PVID)
542 return -EINVAL;
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800543 continue;
544 }
Vlad Yasevich407af322013-02-13 12:00:12 +0000545
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800546 if (vinfo_start) {
547 struct bridge_vlan_info tmp_vinfo;
548 int v;
549
550 if (!(vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END))
551 return -EINVAL;
552
553 if (vinfo->vid <= vinfo_start->vid)
554 return -EINVAL;
555
556 memcpy(&tmp_vinfo, vinfo_start,
557 sizeof(struct bridge_vlan_info));
558
559 for (v = vinfo_start->vid; v <= vinfo->vid; v++) {
560 tmp_vinfo.vid = v;
561 err = br_vlan_info(br, p, cmd, &tmp_vinfo);
Vlad Yasevich407af322013-02-13 12:00:12 +0000562 if (err)
563 break;
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800564 }
565 vinfo_start = NULL;
566 } else {
567 err = br_vlan_info(br, p, cmd, vinfo);
Vlad Yasevich407af322013-02-13 12:00:12 +0000568 }
Roopa Prabhubdced7e2015-01-10 07:31:12 -0800569 if (err)
570 break;
Vlad Yasevich407af322013-02-13 12:00:12 +0000571 }
572
573 return err;
574}
575
Jiri Pirko3ac636b2014-09-05 15:51:30 +0200576static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
stephen hemminger25c71c72012-11-13 07:53:05 +0000577 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
578 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
579 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
580 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
stephen hemmingera2e01a62012-11-13 07:53:07 +0000581 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
stephen hemminger1007dd12012-11-13 07:53:08 +0000582 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
Thomas Graf6f705d82014-11-26 13:42:19 +0100583 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
Vlad Yasevich9ba18892013-06-05 10:08:00 -0400584 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
Vlad Yasevich867a5942013-06-05 10:08:01 -0400585 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
Nikolay Aleksandrov355b9f92015-08-04 19:06:32 +0200586 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
Nikolay Aleksandrov786c2072015-08-04 19:06:33 +0200587 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
Nikolay Aleksandrov5d6ae472015-10-06 14:12:02 +0200588 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
stephen hemminger25c71c72012-11-13 07:53:05 +0000589};
590
591/* Change the state of the port and notify spanning tree */
592static int br_set_port_state(struct net_bridge_port *p, u8 state)
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700593{
stephen hemminger25c71c72012-11-13 07:53:05 +0000594 if (state > BR_STATE_BLOCKING)
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000595 return -EINVAL;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700596
597 /* if kernel STP is running, don't allow changes */
Stephen Hemminger9cde0702007-03-21 14:22:44 -0700598 if (p->br->stp_enabled == BR_KERNEL_STP)
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700599 return -EBUSY;
600
stephen hemminger576eb622012-12-28 18:15:22 +0000601 /* if device is not up, change is not allowed
602 * if link is not present, only allowable state is disabled
603 */
stephen hemminger25c71c72012-11-13 07:53:05 +0000604 if (!netif_running(p->dev) ||
stephen hemminger576eb622012-12-28 18:15:22 +0000605 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700606 return -ENETDOWN;
607
Florian Fainelli775dd692014-09-30 16:13:19 -0700608 br_set_state(p, state);
Vitalii Demianetsb03b6dd2011-11-25 00:16:37 +0000609 br_port_state_selection(p->br);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700610 return 0;
611}
612
stephen hemminger25c71c72012-11-13 07:53:05 +0000613/* Set/clear or port flags based on attribute */
614static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
615 int attrtype, unsigned long mask)
616{
617 if (tb[attrtype]) {
618 u8 flag = nla_get_u8(tb[attrtype]);
619 if (flag)
620 p->flags |= mask;
621 else
622 p->flags &= ~mask;
623 }
624}
625
626/* Process bridge protocol info on port */
627static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
628{
629 int err;
Vlad Yaseviche028e4b2014-05-16 09:59:16 -0400630 unsigned long old_flags = p->flags;
stephen hemminger25c71c72012-11-13 07:53:05 +0000631
632 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
stephen hemmingera2e01a62012-11-13 07:53:07 +0000633 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
David S. Millerc2d3bab2012-12-05 16:24:45 -0500634 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
Vlad Yasevich3d84fa92013-03-15 06:39:12 +0000635 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
Vlad Yasevich9ba18892013-06-05 10:08:00 -0400636 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
Vlad Yasevich867a5942013-06-05 10:08:01 -0400637 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
Nikolay Aleksandrovb6cb5ac2016-08-31 15:36:52 +0200638 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
Kyeyoon Park95850112014-10-23 14:49:17 -0700639 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
Jouni Malinen842a9ae2015-03-04 12:54:21 +0200640 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
stephen hemminger25c71c72012-11-13 07:53:05 +0000641
642 if (tb[IFLA_BRPORT_COST]) {
643 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
644 if (err)
645 return err;
646 }
647
648 if (tb[IFLA_BRPORT_PRIORITY]) {
649 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
650 if (err)
651 return err;
652 }
653
654 if (tb[IFLA_BRPORT_STATE]) {
655 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
656 if (err)
657 return err;
658 }
Vlad Yaseviche028e4b2014-05-16 09:59:16 -0400659
Nikolay Aleksandrov9b0c6e42015-10-06 14:12:01 +0200660 if (tb[IFLA_BRPORT_FLUSH])
661 br_fdb_delete_by_port(p->br, p, 0, 0);
662
Nikolay Aleksandrov5d6ae472015-10-06 14:12:02 +0200663#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
664 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
665 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
666
667 err = br_multicast_set_port_router(p, mcast_router);
668 if (err)
669 return err;
670 }
671#endif
Vlad Yaseviche028e4b2014-05-16 09:59:16 -0400672 br_port_flags_change(p, old_flags ^ p->flags);
stephen hemminger25c71c72012-11-13 07:53:05 +0000673 return 0;
674}
675
676/* Change state and parameters on port. */
Roopa Prabhuadd511b2015-01-29 22:40:12 -0800677int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
stephen hemminger25c71c72012-11-13 07:53:05 +0000678{
stephen hemminger25c71c72012-11-13 07:53:05 +0000679 struct nlattr *protinfo;
Vlad Yasevich407af322013-02-13 12:00:12 +0000680 struct nlattr *afspec;
stephen hemminger25c71c72012-11-13 07:53:05 +0000681 struct net_bridge_port *p;
Dan Carpenter2062cc22012-12-07 01:10:46 +0000682 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
Scott Feldman41c498b2015-05-10 09:47:59 -0700683 int err = 0;
stephen hemminger25c71c72012-11-13 07:53:05 +0000684
Hong zhi guoc60ee672013-03-28 06:21:22 +0000685 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
686 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
Vlad Yasevich407af322013-02-13 12:00:12 +0000687 if (!protinfo && !afspec)
stephen hemminger25c71c72012-11-13 07:53:05 +0000688 return 0;
689
690 p = br_port_get_rtnl(dev);
Vlad Yasevich407af322013-02-13 12:00:12 +0000691 /* We want to accept dev as bridge itself if the AF_SPEC
stephen hemminger8e3bff92013-12-08 12:15:44 -0800692 * is set to see if someone is setting vlan info on the bridge
Vlad Yasevich407af322013-02-13 12:00:12 +0000693 */
Hong zhi guo7b99a992013-03-24 03:26:47 +0000694 if (!p && !afspec)
stephen hemminger25c71c72012-11-13 07:53:05 +0000695 return -EINVAL;
696
Vlad Yasevich407af322013-02-13 12:00:12 +0000697 if (p && protinfo) {
698 if (protinfo->nla_type & NLA_F_NESTED) {
699 err = nla_parse_nested(tb, IFLA_BRPORT_MAX,
Jiri Pirko3ac636b2014-09-05 15:51:30 +0200700 protinfo, br_port_policy);
Vlad Yasevich407af322013-02-13 12:00:12 +0000701 if (err)
702 return err;
703
704 spin_lock_bh(&p->br->lock);
705 err = br_setport(p, tb);
706 spin_unlock_bh(&p->br->lock);
707 } else {
stephen hemminger8e3bff92013-12-08 12:15:44 -0800708 /* Binary compatibility with old RSTP */
Vlad Yasevich407af322013-02-13 12:00:12 +0000709 if (nla_len(protinfo) < sizeof(u8))
710 return -EINVAL;
711
712 spin_lock_bh(&p->br->lock);
713 err = br_set_port_state(p, nla_get_u8(protinfo));
714 spin_unlock_bh(&p->br->lock);
715 }
stephen hemminger25c71c72012-11-13 07:53:05 +0000716 if (err)
Vlad Yasevich407af322013-02-13 12:00:12 +0000717 goto out;
718 }
stephen hemminger25c71c72012-11-13 07:53:05 +0000719
Vlad Yasevich407af322013-02-13 12:00:12 +0000720 if (afspec) {
721 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
722 afspec, RTM_SETLINK);
stephen hemminger25c71c72012-11-13 07:53:05 +0000723 }
724
725 if (err == 0)
726 br_ifinfo_notify(RTM_NEWLINK, p);
Vlad Yasevich407af322013-02-13 12:00:12 +0000727out:
stephen hemminger25c71c72012-11-13 07:53:05 +0000728 return err;
729}
730
Vlad Yasevich407af322013-02-13 12:00:12 +0000731/* Delete port information */
Roopa Prabhuadd511b2015-01-29 22:40:12 -0800732int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
Vlad Yasevich407af322013-02-13 12:00:12 +0000733{
Vlad Yasevich407af322013-02-13 12:00:12 +0000734 struct nlattr *afspec;
735 struct net_bridge_port *p;
Scott Feldman85080252015-05-10 09:48:03 -0700736 int err = 0;
Vlad Yasevich407af322013-02-13 12:00:12 +0000737
Hong zhi guoc60ee672013-03-28 06:21:22 +0000738 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
Vlad Yasevich407af322013-02-13 12:00:12 +0000739 if (!afspec)
740 return 0;
741
742 p = br_port_get_rtnl(dev);
743 /* We want to accept dev as bridge itself as well */
744 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
745 return -EINVAL;
746
747 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
748 afspec, RTM_DELLINK);
Roopa Prabhu02dba432015-01-14 20:02:25 -0800749 if (err == 0)
750 /* Send RTM_NEWLINK because userspace
751 * expects RTM_NEWLINK for vlan dels
752 */
753 br_ifinfo_notify(RTM_NEWLINK, p);
Vlad Yasevich407af322013-02-13 12:00:12 +0000754
755 return err;
756}
stephen hemmingerbb900b22011-04-04 14:03:32 +0000757static int br_validate(struct nlattr *tb[], struct nlattr *data[])
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700758{
stephen hemmingerbb900b22011-04-04 14:03:32 +0000759 if (tb[IFLA_ADDRESS]) {
760 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
761 return -EINVAL;
762 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
763 return -EADDRNOTAVAIL;
764 }
Thomas Graf32fe21c2007-03-22 11:59:03 -0700765
Toshiaki Makitad2d427b2015-08-27 15:32:26 +0900766 if (!data)
767 return 0;
768
769#ifdef CONFIG_BRIDGE_VLAN_FILTERING
770 if (data[IFLA_BR_VLAN_PROTOCOL]) {
771 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
772 case htons(ETH_P_8021Q):
773 case htons(ETH_P_8021AD):
774 break;
775 default:
776 return -EPROTONOSUPPORT;
777 }
778 }
779#endif
780
Thomas Graf32fe21c2007-03-22 11:59:03 -0700781 return 0;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700782}
783
Toshiaki Makita30313a32014-04-25 17:01:18 +0900784static int br_dev_newlink(struct net *src_net, struct net_device *dev,
785 struct nlattr *tb[], struct nlattr *data[])
786{
787 struct net_bridge *br = netdev_priv(dev);
788
789 if (tb[IFLA_ADDRESS]) {
790 spin_lock_bh(&br->lock);
791 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
792 spin_unlock_bh(&br->lock);
793 }
794
795 return register_netdevice(dev);
796}
797
Jiri Pirko3ac636b2014-09-05 15:51:30 +0200798static int br_port_slave_changelink(struct net_device *brdev,
799 struct net_device *dev,
800 struct nlattr *tb[],
801 struct nlattr *data[])
802{
Nikolay Aleksandrov963ad942015-07-22 13:03:40 +0200803 struct net_bridge *br = netdev_priv(brdev);
804 int ret;
805
Jiri Pirko3ac636b2014-09-05 15:51:30 +0200806 if (!data)
807 return 0;
Nikolay Aleksandrov963ad942015-07-22 13:03:40 +0200808
809 spin_lock_bh(&br->lock);
810 ret = br_setport(br_port_get_rtnl(dev), data);
811 spin_unlock_bh(&br->lock);
812
813 return ret;
Jiri Pirko3ac636b2014-09-05 15:51:30 +0200814}
815
Jiri Pirkoced82832014-09-05 15:51:29 +0200816static int br_port_fill_slave_info(struct sk_buff *skb,
817 const struct net_device *brdev,
818 const struct net_device *dev)
819{
820 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
821}
822
823static size_t br_port_get_slave_size(const struct net_device *brdev,
824 const struct net_device *dev)
825{
826 return br_port_info_size();
827}
828
Jiri Pirko13323512014-09-05 15:51:32 +0200829static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
830 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
831 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
832 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
Jörg Thalheimaf615762015-03-18 10:06:58 +0100833 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
834 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
835 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
Nikolay Aleksandrova7854032015-08-07 19:40:45 +0300836 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
Toshiaki Makitad2d427b2015-08-27 15:32:26 +0900837 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
Nikolay Aleksandrov79102282015-10-04 14:23:28 +0200838 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
Nikolay Aleksandrov111189a2015-10-04 14:23:35 +0200839 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
840 .len = ETH_ALEN },
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +0200841 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
Nikolay Aleksandrov89126322015-10-04 14:23:38 +0200842 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
Nikolay Aleksandrov295141d2015-10-04 14:23:39 +0200843 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
Nikolay Aleksandrovba062d7c2015-10-04 14:23:40 +0200844 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
Nikolay Aleksandrov431db3c2015-10-04 14:23:41 +0200845 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
Nikolay Aleksandrov858079f2015-10-04 14:23:42 +0200846 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
Nikolay Aleksandrov79b859f2015-10-04 14:23:43 +0200847 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
Nikolay Aleksandrovb89e6ba2015-10-04 14:23:44 +0200848 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +0200849 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
850 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
851 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
852 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
853 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
854 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
Nikolay Aleksandrov93870cc2015-10-04 14:23:46 +0200855 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
856 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
857 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
Nikolay Aleksandrov0f963b72015-10-04 14:23:47 +0200858 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
Nikolay Aleksandrov6dada9b2016-04-30 10:25:28 +0200859 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +0200860 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
Jiri Pirko13323512014-09-05 15:51:32 +0200861};
862
863static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
864 struct nlattr *data[])
865{
866 struct net_bridge *br = netdev_priv(brdev);
867 int err;
868
869 if (!data)
870 return 0;
871
872 if (data[IFLA_BR_FORWARD_DELAY]) {
873 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
874 if (err)
875 return err;
876 }
877
878 if (data[IFLA_BR_HELLO_TIME]) {
879 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
880 if (err)
881 return err;
882 }
883
884 if (data[IFLA_BR_MAX_AGE]) {
885 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
886 if (err)
887 return err;
888 }
889
Jörg Thalheimaf615762015-03-18 10:06:58 +0100890 if (data[IFLA_BR_AGEING_TIME]) {
Scott Feldmanc62987b2015-10-08 19:23:19 -0700891 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
892 if (err)
893 return err;
Jörg Thalheimaf615762015-03-18 10:06:58 +0100894 }
895
896 if (data[IFLA_BR_STP_STATE]) {
897 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
898
899 br_stp_set_enabled(br, stp_enabled);
900 }
901
902 if (data[IFLA_BR_PRIORITY]) {
903 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
904
905 br_stp_set_bridge_priority(br, priority);
906 }
907
Nikolay Aleksandrova7854032015-08-07 19:40:45 +0300908 if (data[IFLA_BR_VLAN_FILTERING]) {
909 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
910
911 err = __br_vlan_filter_toggle(br, vlan_filter);
912 if (err)
913 return err;
914 }
915
Toshiaki Makitad2d427b2015-08-27 15:32:26 +0900916#ifdef CONFIG_BRIDGE_VLAN_FILTERING
917 if (data[IFLA_BR_VLAN_PROTOCOL]) {
918 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
919
920 err = __br_vlan_set_proto(br, vlan_proto);
921 if (err)
922 return err;
923 }
Nikolay Aleksandrov0f963b72015-10-04 14:23:47 +0200924
925 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
926 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
927
928 err = __br_vlan_set_default_pvid(br, defpvid);
929 if (err)
930 return err;
931 }
Nikolay Aleksandrov6dada9b2016-04-30 10:25:28 +0200932
933 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
934 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
935
936 err = br_vlan_set_stats(br, vlan_stats);
937 if (err)
938 return err;
939 }
Toshiaki Makitad2d427b2015-08-27 15:32:26 +0900940#endif
941
Nikolay Aleksandrov79102282015-10-04 14:23:28 +0200942 if (data[IFLA_BR_GROUP_FWD_MASK]) {
943 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
944
945 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
946 return -EINVAL;
947 br->group_fwd_mask = fwd_mask;
948 }
949
Nikolay Aleksandrov111189a2015-10-04 14:23:35 +0200950 if (data[IFLA_BR_GROUP_ADDR]) {
951 u8 new_addr[ETH_ALEN];
952
953 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
954 return -EINVAL;
955 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
956 if (!is_link_local_ether_addr(new_addr))
957 return -EINVAL;
958 if (new_addr[5] == 1 || /* 802.3x Pause address */
959 new_addr[5] == 2 || /* 802.3ad Slow protocols */
960 new_addr[5] == 3) /* 802.1X PAE address */
961 return -EINVAL;
962 spin_lock_bh(&br->lock);
963 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
964 spin_unlock_bh(&br->lock);
965 br->group_addr_set = true;
966 br_recalculate_fwd_mask(br);
967 }
968
Nikolay Aleksandrov150217c2015-10-04 14:23:36 +0200969 if (data[IFLA_BR_FDB_FLUSH])
970 br_fdb_flush(br);
971
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +0200972#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
973 if (data[IFLA_BR_MCAST_ROUTER]) {
974 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
975
976 err = br_multicast_set_router(br, multicast_router);
977 if (err)
978 return err;
979 }
Nikolay Aleksandrov89126322015-10-04 14:23:38 +0200980
981 if (data[IFLA_BR_MCAST_SNOOPING]) {
982 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
983
984 err = br_multicast_toggle(br, mcast_snooping);
985 if (err)
986 return err;
987 }
Nikolay Aleksandrov295141d2015-10-04 14:23:39 +0200988
989 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
990 u8 val;
991
992 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
993 br->multicast_query_use_ifaddr = !!val;
994 }
Nikolay Aleksandrovba062d7c2015-10-04 14:23:40 +0200995
996 if (data[IFLA_BR_MCAST_QUERIER]) {
997 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
998
999 err = br_multicast_set_querier(br, mcast_querier);
1000 if (err)
1001 return err;
1002 }
Nikolay Aleksandrov431db3c2015-10-04 14:23:41 +02001003
1004 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
1005 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
1006
1007 br->hash_elasticity = val;
1008 }
Nikolay Aleksandrov858079f2015-10-04 14:23:42 +02001009
1010 if (data[IFLA_BR_MCAST_HASH_MAX]) {
1011 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
1012
1013 err = br_multicast_set_hash_max(br, hash_max);
1014 if (err)
1015 return err;
1016 }
Nikolay Aleksandrov79b859f2015-10-04 14:23:43 +02001017
1018 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1019 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1020
1021 br->multicast_last_member_count = val;
1022 }
Nikolay Aleksandrovb89e6ba2015-10-04 14:23:44 +02001023
1024 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1025 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1026
1027 br->multicast_startup_query_count = val;
1028 }
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001029
1030 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1031 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1032
1033 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1034 }
1035
1036 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1037 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1038
1039 br->multicast_membership_interval = clock_t_to_jiffies(val);
1040 }
1041
1042 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1043 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1044
1045 br->multicast_querier_interval = clock_t_to_jiffies(val);
1046 }
1047
1048 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1049 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1050
1051 br->multicast_query_interval = clock_t_to_jiffies(val);
1052 }
1053
1054 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1055 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1056
1057 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1058 }
1059
1060 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1061 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1062
1063 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1064 }
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001065
1066 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1067 __u8 mcast_stats;
1068
1069 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
1070 br->multicast_stats_enabled = !!mcast_stats;
1071 }
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001072#endif
Nikolay Aleksandrov93870cc2015-10-04 14:23:46 +02001073#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1074 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1075 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1076
1077 br->nf_call_iptables = val ? true : false;
1078 }
1079
1080 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1081 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1082
1083 br->nf_call_ip6tables = val ? true : false;
1084 }
1085
1086 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1087 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1088
1089 br->nf_call_arptables = val ? true : false;
1090 }
1091#endif
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001092
Jiri Pirko13323512014-09-05 15:51:32 +02001093 return 0;
1094}
1095
Jiri Pirkoe5c3ea52014-09-05 15:51:31 +02001096static size_t br_get_size(const struct net_device *brdev)
1097{
1098 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1099 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1100 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
Jörg Thalheimaf615762015-03-18 10:06:58 +01001101 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1102 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1103 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
Nikolay Aleksandrova7854032015-08-07 19:40:45 +03001104 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
Toshiaki Makitad2d427b2015-08-27 15:32:26 +09001105#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1106 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
Nikolay Aleksandrov0f963b72015-10-04 14:23:47 +02001107 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
Nikolay Aleksandrov6dada9b2016-04-30 10:25:28 +02001108 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
Toshiaki Makitad2d427b2015-08-27 15:32:26 +09001109#endif
Nikolay Aleksandrov79102282015-10-04 14:23:28 +02001110 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
Nikolay Aleksandrov5127c812015-10-04 14:23:29 +02001111 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
Nikolay Aleksandrov7599a222015-10-04 14:23:30 +02001112 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
Nikolay Aleksandrov8762ba62015-10-04 14:23:31 +02001113 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
Nikolay Aleksandrov684dd242015-10-04 14:23:32 +02001114 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
Nikolay Aleksandrovb89e6ba2015-10-04 14:23:44 +02001115 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1116 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001117 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1118 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1119 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1120 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
Nikolay Aleksandrov111189a2015-10-04 14:23:35 +02001121 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001122#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1123 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
Nikolay Aleksandrov89126322015-10-04 14:23:38 +02001124 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
Nikolay Aleksandrov295141d2015-10-04 14:23:39 +02001125 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
Nikolay Aleksandrovba062d7c2015-10-04 14:23:40 +02001126 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001127 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
Nikolay Aleksandrovb89e6ba2015-10-04 14:23:44 +02001128 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1129 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1130 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1131 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001132 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1133 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1134 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1135 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1136 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1137 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001138#endif
Nikolay Aleksandrov93870cc2015-10-04 14:23:46 +02001139#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1140 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1141 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1142 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
1143#endif
Jiri Pirkoe5c3ea52014-09-05 15:51:31 +02001144 0;
1145}
1146
1147static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1148{
1149 struct net_bridge *br = netdev_priv(brdev);
1150 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1151 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1152 u32 age_time = jiffies_to_clock_t(br->max_age);
Jörg Thalheimaf615762015-03-18 10:06:58 +01001153 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1154 u32 stp_enabled = br->stp_enabled;
1155 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
Nikolay Aleksandrova7854032015-08-07 19:40:45 +03001156 u8 vlan_enabled = br_vlan_enabled(br);
Nikolay Aleksandrov4917a152015-10-05 12:11:21 +02001157 u64 clockval;
Nikolay Aleksandrov5127c812015-10-04 14:23:29 +02001158
Nikolay Aleksandrov4917a152015-10-05 12:11:21 +02001159 clockval = br_timer_value(&br->hello_timer);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001160 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
Nikolay Aleksandrov4917a152015-10-05 12:11:21 +02001161 return -EMSGSIZE;
1162 clockval = br_timer_value(&br->tcn_timer);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001163 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
Nikolay Aleksandrov4917a152015-10-05 12:11:21 +02001164 return -EMSGSIZE;
1165 clockval = br_timer_value(&br->topology_change_timer);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001166 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1167 IFLA_BR_PAD))
Nikolay Aleksandrov4917a152015-10-05 12:11:21 +02001168 return -EMSGSIZE;
1169 clockval = br_timer_value(&br->gc_timer);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001170 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
Nikolay Aleksandrov4917a152015-10-05 12:11:21 +02001171 return -EMSGSIZE;
Jiri Pirkoe5c3ea52014-09-05 15:51:31 +02001172
1173 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1174 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
Jörg Thalheimaf615762015-03-18 10:06:58 +01001175 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1176 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1177 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
Nikolay Aleksandrova7854032015-08-07 19:40:45 +03001178 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
Nikolay Aleksandrov79102282015-10-04 14:23:28 +02001179 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
Nikolay Aleksandrov4917a152015-10-05 12:11:21 +02001180 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1181 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1182 &br->bridge_id) ||
1183 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1184 &br->designated_root) ||
Nikolay Aleksandrov684dd242015-10-04 14:23:32 +02001185 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
Nikolay Aleksandroved416302015-10-04 14:23:33 +02001186 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1187 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1188 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
Nikolay Aleksandrovd76bd142015-10-04 14:23:34 +02001189 br->topology_change_detected) ||
Nikolay Aleksandrov111189a2015-10-04 14:23:35 +02001190 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
Jiri Pirkoe5c3ea52014-09-05 15:51:31 +02001191 return -EMSGSIZE;
1192
Toshiaki Makitad2d427b2015-08-27 15:32:26 +09001193#ifdef CONFIG_BRIDGE_VLAN_FILTERING
Nikolay Aleksandrov0f963b72015-10-04 14:23:47 +02001194 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
Nikolay Aleksandrov6dada9b2016-04-30 10:25:28 +02001195 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
1196 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled))
Toshiaki Makitad2d427b2015-08-27 15:32:26 +09001197 return -EMSGSIZE;
1198#endif
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001199#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
Nikolay Aleksandrov89126322015-10-04 14:23:38 +02001200 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
Nikolay Aleksandrov295141d2015-10-04 14:23:39 +02001201 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1202 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
Nikolay Aleksandrovba062d7c2015-10-04 14:23:40 +02001203 br->multicast_query_use_ifaddr) ||
Nikolay Aleksandrov431db3c2015-10-04 14:23:41 +02001204 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001205 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
1206 br->multicast_stats_enabled) ||
Nikolay Aleksandrov431db3c2015-10-04 14:23:41 +02001207 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
Nikolay Aleksandrov858079f2015-10-04 14:23:42 +02001208 br->hash_elasticity) ||
Nikolay Aleksandrov79b859f2015-10-04 14:23:43 +02001209 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1210 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
Nikolay Aleksandrovb89e6ba2015-10-04 14:23:44 +02001211 br->multicast_last_member_count) ||
1212 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
1213 br->multicast_startup_query_count))
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001214 return -EMSGSIZE;
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001215
1216 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001217 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1218 IFLA_BR_PAD))
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001219 return -EMSGSIZE;
1220 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001221 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1222 IFLA_BR_PAD))
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001223 return -EMSGSIZE;
1224 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001225 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1226 IFLA_BR_PAD))
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001227 return -EMSGSIZE;
1228 clockval = jiffies_to_clock_t(br->multicast_query_interval);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001229 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1230 IFLA_BR_PAD))
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001231 return -EMSGSIZE;
1232 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001233 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1234 IFLA_BR_PAD))
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001235 return -EMSGSIZE;
1236 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
Nicolas Dichtel12a0faa2016-04-25 10:25:18 +02001237 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1238 IFLA_BR_PAD))
Nikolay Aleksandrov7e4df512015-10-04 14:23:45 +02001239 return -EMSGSIZE;
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001240#endif
Nikolay Aleksandrov93870cc2015-10-04 14:23:46 +02001241#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1242 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1243 br->nf_call_iptables ? 1 : 0) ||
1244 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1245 br->nf_call_ip6tables ? 1 : 0) ||
1246 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1247 br->nf_call_arptables ? 1 : 0))
1248 return -EMSGSIZE;
1249#endif
Nikolay Aleksandrova9a6bc72015-10-04 14:23:37 +02001250
Jiri Pirkoe5c3ea52014-09-05 15:51:31 +02001251 return 0;
1252}
1253
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001254static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001255{
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001256 struct net_bridge_port *p = NULL;
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001257 struct net_bridge_vlan_group *vg;
1258 struct net_bridge_vlan *v;
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001259 struct net_bridge *br;
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001260 int numvls = 0;
1261
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001262 switch (attr) {
1263 case IFLA_STATS_LINK_XSTATS:
1264 br = netdev_priv(dev);
1265 vg = br_vlan_group(br);
1266 break;
1267 case IFLA_STATS_LINK_XSTATS_SLAVE:
1268 p = br_port_get_rtnl(dev);
1269 if (!p)
1270 return 0;
1271 br = p->br;
1272 vg = nbp_vlan_group(p);
1273 break;
1274 default:
1275 return 0;
1276 }
1277
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001278 if (vg) {
1279 /* we need to count all, even placeholder entries */
1280 list_for_each_entry(v, &vg->vlan_list, vlist)
1281 numvls++;
1282 }
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001283
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001284 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001285 nla_total_size(sizeof(struct br_mcast_stats)) +
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001286 nla_total_size(0);
1287}
1288
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001289static int br_fill_linkxstats(struct sk_buff *skb,
1290 const struct net_device *dev,
1291 int *prividx, int attr)
Nikolay Aleksandrov80e73cc2016-06-28 16:57:05 +02001292{
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001293 struct nlattr *nla __maybe_unused;
1294 struct net_bridge_port *p = NULL;
1295 struct net_bridge_vlan_group *vg;
1296 struct net_bridge_vlan *v;
1297 struct net_bridge *br;
1298 struct nlattr *nest;
1299 int vl_idx = 0;
Nikolay Aleksandrov80e73cc2016-06-28 16:57:05 +02001300
1301 switch (attr) {
1302 case IFLA_STATS_LINK_XSTATS:
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001303 br = netdev_priv(dev);
1304 vg = br_vlan_group(br);
Nikolay Aleksandrov80e73cc2016-06-28 16:57:05 +02001305 break;
1306 case IFLA_STATS_LINK_XSTATS_SLAVE:
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001307 p = br_port_get_rtnl(dev);
1308 if (!p)
1309 return 0;
1310 br = p->br;
1311 vg = nbp_vlan_group(p);
Nikolay Aleksandrov80e73cc2016-06-28 16:57:05 +02001312 break;
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001313 default:
1314 return -EINVAL;
Nikolay Aleksandrov80e73cc2016-06-28 16:57:05 +02001315 }
1316
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001317 nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
1318 if (!nest)
1319 return -EMSGSIZE;
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001320
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001321 if (vg) {
Nikolay Aleksandrov72f4af42016-08-25 14:27:51 +02001322 u16 pvid;
1323
1324 pvid = br_get_pvid(vg);
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001325 list_for_each_entry(v, &vg->vlan_list, vlist) {
1326 struct bridge_vlan_xstats vxi;
1327 struct br_vlan_stats stats;
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001328
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001329 if (++vl_idx < *prividx)
1330 continue;
1331 memset(&vxi, 0, sizeof(vxi));
1332 vxi.vid = v->vid;
Nikolay Aleksandrov61ba1a22016-08-17 12:53:10 +02001333 vxi.flags = v->flags;
Nikolay Aleksandrov72f4af42016-08-25 14:27:51 +02001334 if (v->vid == pvid)
1335 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001336 br_vlan_get_stats(v, &stats);
1337 vxi.rx_bytes = stats.rx_bytes;
1338 vxi.rx_packets = stats.rx_packets;
1339 vxi.tx_bytes = stats.tx_bytes;
1340 vxi.tx_packets = stats.tx_packets;
1341
1342 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1343 goto nla_put_failure;
1344 }
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001345 }
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001346
1347#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1348 if (++vl_idx >= *prividx) {
1349 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1350 sizeof(struct br_mcast_stats),
1351 BRIDGE_XSTATS_PAD);
1352 if (!nla)
1353 goto nla_put_failure;
Nikolay Aleksandrovd5ff8c42016-08-17 12:53:09 +02001354 br_multicast_get_stats(br, p, nla_data(nla));
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001355 }
1356#endif
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001357 nla_nest_end(skb, nest);
1358 *prividx = 0;
Nikolay Aleksandrov1080ab92016-06-28 16:57:06 +02001359
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001360 return 0;
1361
1362nla_put_failure:
1363 nla_nest_end(skb, nest);
1364 *prividx = vl_idx;
1365
1366 return -EMSGSIZE;
1367}
Roopa Prabhufed0a152015-02-25 23:55:40 -08001368
Daniel Borkmann207895f2015-01-29 12:15:03 +01001369static struct rtnl_af_ops br_af_ops __read_mostly = {
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +00001370 .family = AF_BRIDGE,
Arad, Ronenb1974ed2015-10-19 09:23:28 -07001371 .get_link_af_size = br_get_link_af_size_filtered,
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +00001372};
1373
stephen hemminger149ddd82012-06-26 05:48:45 +00001374struct rtnl_link_ops br_link_ops __read_mostly = {
Jiri Pirkoced82832014-09-05 15:51:29 +02001375 .kind = "bridge",
1376 .priv_size = sizeof(struct net_bridge),
1377 .setup = br_dev_setup,
Scott Feldmaneb4cb852015-08-19 11:29:35 -07001378 .maxtype = IFLA_BR_MAX,
Jiri Pirko13323512014-09-05 15:51:32 +02001379 .policy = br_policy,
Jiri Pirkoced82832014-09-05 15:51:29 +02001380 .validate = br_validate,
1381 .newlink = br_dev_newlink,
Jiri Pirko13323512014-09-05 15:51:32 +02001382 .changelink = br_changelink,
Jiri Pirkoced82832014-09-05 15:51:29 +02001383 .dellink = br_dev_delete,
Jiri Pirkoe5c3ea52014-09-05 15:51:31 +02001384 .get_size = br_get_size,
1385 .fill_info = br_fill_info,
Nikolay Aleksandrova60c0902016-04-30 10:25:29 +02001386 .fill_linkxstats = br_fill_linkxstats,
1387 .get_linkxstats_size = br_get_linkxstats_size,
Jiri Pirko3ac636b2014-09-05 15:51:30 +02001388
1389 .slave_maxtype = IFLA_BRPORT_MAX,
1390 .slave_policy = br_port_policy,
1391 .slave_changelink = br_port_slave_changelink,
Jiri Pirkoced82832014-09-05 15:51:29 +02001392 .get_slave_size = br_port_get_slave_size,
1393 .fill_slave_info = br_port_fill_slave_info,
stephen hemmingerbb900b22011-04-04 14:03:32 +00001394};
1395
1396int __init br_netlink_init(void)
Stephen Hemminger11dc1f32006-05-25 16:00:12 -07001397{
Vlad Yasevich3ec8e9f2013-01-02 09:41:25 +00001398 int err;
1399
1400 br_mdb_init();
stephen hemminger3678a9d2013-12-30 10:41:32 -08001401 rtnl_af_register(&br_af_ops);
Vlad Yasevich3ec8e9f2013-01-02 09:41:25 +00001402
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +00001403 err = rtnl_link_register(&br_link_ops);
1404 if (err)
1405 goto out_af;
1406
Vlad Yasevich3ec8e9f2013-01-02 09:41:25 +00001407 return 0;
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +00001408
1409out_af:
1410 rtnl_af_unregister(&br_af_ops);
Vlad Yasevich3ec8e9f2013-01-02 09:41:25 +00001411 br_mdb_uninit();
1412 return err;
Stephen Hemminger11dc1f32006-05-25 16:00:12 -07001413}
1414
Pablo Neira Ayuso34666d42014-09-18 11:29:03 +02001415void br_netlink_fini(void)
stephen hemmingerbb900b22011-04-04 14:03:32 +00001416{
Vlad Yasevich3ec8e9f2013-01-02 09:41:25 +00001417 br_mdb_uninit();
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +00001418 rtnl_af_unregister(&br_af_ops);
stephen hemmingerbb900b22011-04-04 14:03:32 +00001419 rtnl_link_unregister(&br_link_ops);
stephen hemmingerbb900b22011-04-04 14:03:32 +00001420}