2 * Bridge netlink control interface
5 * Stephen Hemminger <shemminger@osdl.org>
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.
13 #include <linux/kernel.h>
14 #include <linux/slab.h>
15 #include <linux/etherdevice.h>
16 #include <net/rtnetlink.h>
17 #include <net/net_namespace.h>
19 #include <uapi/linux/if_bridge.h>
21 #include "br_private.h"
22 #include "br_private_stp.h"
23 #include "br_private_tunnel.h"
25 static int __get_num_vlan_infos(struct net_bridge_vlan_group
*vg
,
28 struct net_bridge_vlan
*v
;
29 u16 vid_range_start
= 0, vid_range_end
= 0, vid_range_flags
= 0;
33 if (!(filter_mask
& RTEXT_FILTER_BRVLAN_COMPRESSED
))
36 pvid
= br_get_pvid(vg
);
37 /* Count number of vlan infos */
38 list_for_each_entry_rcu(v
, &vg
->vlan_list
, vlist
) {
40 /* only a context, bridge vlan not activated */
41 if (!br_vlan_should_use(v
))
44 flags
|= BRIDGE_VLAN_INFO_PVID
;
46 if (v
->flags
& BRIDGE_VLAN_INFO_UNTAGGED
)
47 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
49 if (vid_range_start
== 0) {
51 } else if ((v
->vid
- vid_range_end
) == 1 &&
52 flags
== vid_range_flags
) {
53 vid_range_end
= v
->vid
;
56 if ((vid_range_end
- vid_range_start
) > 0)
62 vid_range_start
= v
->vid
;
63 vid_range_end
= v
->vid
;
64 vid_range_flags
= flags
;
67 if (vid_range_start
!= 0) {
68 if ((vid_range_end
- vid_range_start
) > 0)
77 static int br_get_num_vlan_infos(struct net_bridge_vlan_group
*vg
,
85 if (filter_mask
& RTEXT_FILTER_BRVLAN
)
89 num_vlans
= __get_num_vlan_infos(vg
, filter_mask
);
95 static size_t br_get_link_af_size_filtered(const struct net_device
*dev
,
98 struct net_bridge_vlan_group
*vg
= NULL
;
99 struct net_bridge_port
*p
= NULL
;
100 struct net_bridge
*br
;
105 if (br_port_exists(dev
)) {
106 p
= br_port_get_rcu(dev
);
107 vg
= nbp_vlan_group_rcu(p
);
108 } else if (dev
->priv_flags
& IFF_EBRIDGE
) {
109 br
= netdev_priv(dev
);
110 vg
= br_vlan_group_rcu(br
);
112 num_vlan_infos
= br_get_num_vlan_infos(vg
, filter_mask
);
115 if (p
&& (p
->flags
& BR_VLAN_TUNNEL
))
116 vinfo_sz
+= br_get_vlan_tunnel_info_size(vg
);
118 /* Each VLAN is returned in bridge_vlan_info along with flags */
119 vinfo_sz
+= num_vlan_infos
* nla_total_size(sizeof(struct bridge_vlan_info
));
124 static inline size_t br_port_info_size(void)
126 return nla_total_size(1) /* IFLA_BRPORT_STATE */
127 + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */
128 + nla_total_size(4) /* IFLA_BRPORT_COST */
129 + nla_total_size(1) /* IFLA_BRPORT_MODE */
130 + nla_total_size(1) /* IFLA_BRPORT_GUARD */
131 + nla_total_size(1) /* IFLA_BRPORT_PROTECT */
132 + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
133 + nla_total_size(1) /* IFLA_BRPORT_MCAST_TO_UCAST */
134 + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
135 + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
136 + nla_total_size(1) /* IFLA_BRPORT_MCAST_FLOOD */
137 + nla_total_size(1) /* IFLA_BRPORT_BCAST_FLOOD */
138 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
139 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
140 + nla_total_size(1) /* IFLA_BRPORT_VLAN_TUNNEL */
141 + nla_total_size(sizeof(struct ifla_bridge_id
)) /* IFLA_BRPORT_ROOT_ID */
142 + nla_total_size(sizeof(struct ifla_bridge_id
)) /* IFLA_BRPORT_BRIDGE_ID */
143 + nla_total_size(sizeof(u16
)) /* IFLA_BRPORT_DESIGNATED_PORT */
144 + nla_total_size(sizeof(u16
)) /* IFLA_BRPORT_DESIGNATED_COST */
145 + nla_total_size(sizeof(u16
)) /* IFLA_BRPORT_ID */
146 + nla_total_size(sizeof(u16
)) /* IFLA_BRPORT_NO */
147 + nla_total_size(sizeof(u8
)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
148 + nla_total_size(sizeof(u8
)) /* IFLA_BRPORT_CONFIG_PENDING */
149 + nla_total_size_64bit(sizeof(u64
)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
150 + nla_total_size_64bit(sizeof(u64
)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
151 + nla_total_size_64bit(sizeof(u64
)) /* IFLA_BRPORT_HOLD_TIMER */
152 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
153 + nla_total_size(sizeof(u8
)) /* IFLA_BRPORT_MULTICAST_ROUTER */
158 static inline size_t br_nlmsg_size(struct net_device
*dev
, u32 filter_mask
)
160 return NLMSG_ALIGN(sizeof(struct ifinfomsg
))
161 + nla_total_size(IFNAMSIZ
) /* IFLA_IFNAME */
162 + nla_total_size(MAX_ADDR_LEN
) /* IFLA_ADDRESS */
163 + nla_total_size(4) /* IFLA_MASTER */
164 + nla_total_size(4) /* IFLA_MTU */
165 + nla_total_size(4) /* IFLA_LINK */
166 + nla_total_size(1) /* IFLA_OPERSTATE */
167 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
168 + nla_total_size(br_get_link_af_size_filtered(dev
,
169 filter_mask
)); /* IFLA_AF_SPEC */
172 static int br_port_fill_attrs(struct sk_buff
*skb
,
173 const struct net_bridge_port
*p
)
175 u8 mode
= !!(p
->flags
& BR_HAIRPIN_MODE
);
178 if (nla_put_u8(skb
, IFLA_BRPORT_STATE
, p
->state
) ||
179 nla_put_u16(skb
, IFLA_BRPORT_PRIORITY
, p
->priority
) ||
180 nla_put_u32(skb
, IFLA_BRPORT_COST
, p
->path_cost
) ||
181 nla_put_u8(skb
, IFLA_BRPORT_MODE
, mode
) ||
182 nla_put_u8(skb
, IFLA_BRPORT_GUARD
, !!(p
->flags
& BR_BPDU_GUARD
)) ||
183 nla_put_u8(skb
, IFLA_BRPORT_PROTECT
,
184 !!(p
->flags
& BR_ROOT_BLOCK
)) ||
185 nla_put_u8(skb
, IFLA_BRPORT_FAST_LEAVE
,
186 !!(p
->flags
& BR_MULTICAST_FAST_LEAVE
)) ||
187 nla_put_u8(skb
, IFLA_BRPORT_MCAST_TO_UCAST
,
188 !!(p
->flags
& BR_MULTICAST_TO_UNICAST
)) ||
189 nla_put_u8(skb
, IFLA_BRPORT_LEARNING
, !!(p
->flags
& BR_LEARNING
)) ||
190 nla_put_u8(skb
, IFLA_BRPORT_UNICAST_FLOOD
,
191 !!(p
->flags
& BR_FLOOD
)) ||
192 nla_put_u8(skb
, IFLA_BRPORT_MCAST_FLOOD
,
193 !!(p
->flags
& BR_MCAST_FLOOD
)) ||
194 nla_put_u8(skb
, IFLA_BRPORT_BCAST_FLOOD
,
195 !!(p
->flags
& BR_BCAST_FLOOD
)) ||
196 nla_put_u8(skb
, IFLA_BRPORT_PROXYARP
, !!(p
->flags
& BR_PROXYARP
)) ||
197 nla_put_u8(skb
, IFLA_BRPORT_PROXYARP_WIFI
,
198 !!(p
->flags
& BR_PROXYARP_WIFI
)) ||
199 nla_put(skb
, IFLA_BRPORT_ROOT_ID
, sizeof(struct ifla_bridge_id
),
200 &p
->designated_root
) ||
201 nla_put(skb
, IFLA_BRPORT_BRIDGE_ID
, sizeof(struct ifla_bridge_id
),
202 &p
->designated_bridge
) ||
203 nla_put_u16(skb
, IFLA_BRPORT_DESIGNATED_PORT
, p
->designated_port
) ||
204 nla_put_u16(skb
, IFLA_BRPORT_DESIGNATED_COST
, p
->designated_cost
) ||
205 nla_put_u16(skb
, IFLA_BRPORT_ID
, p
->port_id
) ||
206 nla_put_u16(skb
, IFLA_BRPORT_NO
, p
->port_no
) ||
207 nla_put_u8(skb
, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK
,
208 p
->topology_change_ack
) ||
209 nla_put_u8(skb
, IFLA_BRPORT_CONFIG_PENDING
, p
->config_pending
) ||
210 nla_put_u8(skb
, IFLA_BRPORT_VLAN_TUNNEL
, !!(p
->flags
&
214 timerval
= br_timer_value(&p
->message_age_timer
);
215 if (nla_put_u64_64bit(skb
, IFLA_BRPORT_MESSAGE_AGE_TIMER
, timerval
,
218 timerval
= br_timer_value(&p
->forward_delay_timer
);
219 if (nla_put_u64_64bit(skb
, IFLA_BRPORT_FORWARD_DELAY_TIMER
, timerval
,
222 timerval
= br_timer_value(&p
->hold_timer
);
223 if (nla_put_u64_64bit(skb
, IFLA_BRPORT_HOLD_TIMER
, timerval
,
227 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
228 if (nla_put_u8(skb
, IFLA_BRPORT_MULTICAST_ROUTER
,
229 p
->multicast_router
))
236 static int br_fill_ifvlaninfo_range(struct sk_buff
*skb
, u16 vid_start
,
237 u16 vid_end
, u16 flags
)
239 struct bridge_vlan_info vinfo
;
241 if ((vid_end
- vid_start
) > 0) {
242 /* add range to skb */
243 vinfo
.vid
= vid_start
;
244 vinfo
.flags
= flags
| BRIDGE_VLAN_INFO_RANGE_BEGIN
;
245 if (nla_put(skb
, IFLA_BRIDGE_VLAN_INFO
,
246 sizeof(vinfo
), &vinfo
))
247 goto nla_put_failure
;
250 vinfo
.flags
= flags
| BRIDGE_VLAN_INFO_RANGE_END
;
251 if (nla_put(skb
, IFLA_BRIDGE_VLAN_INFO
,
252 sizeof(vinfo
), &vinfo
))
253 goto nla_put_failure
;
255 vinfo
.vid
= vid_start
;
257 if (nla_put(skb
, IFLA_BRIDGE_VLAN_INFO
,
258 sizeof(vinfo
), &vinfo
))
259 goto nla_put_failure
;
268 static int br_fill_ifvlaninfo_compressed(struct sk_buff
*skb
,
269 struct net_bridge_vlan_group
*vg
)
271 struct net_bridge_vlan
*v
;
272 u16 vid_range_start
= 0, vid_range_end
= 0, vid_range_flags
= 0;
276 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
277 * and mark vlan info with begin and end flags
278 * if vlaninfo represents a range
280 pvid
= br_get_pvid(vg
);
281 list_for_each_entry_rcu(v
, &vg
->vlan_list
, vlist
) {
283 if (!br_vlan_should_use(v
))
286 flags
|= BRIDGE_VLAN_INFO_PVID
;
288 if (v
->flags
& BRIDGE_VLAN_INFO_UNTAGGED
)
289 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
291 if (vid_range_start
== 0) {
293 } else if ((v
->vid
- vid_range_end
) == 1 &&
294 flags
== vid_range_flags
) {
295 vid_range_end
= v
->vid
;
298 err
= br_fill_ifvlaninfo_range(skb
, vid_range_start
,
306 vid_range_start
= v
->vid
;
307 vid_range_end
= v
->vid
;
308 vid_range_flags
= flags
;
311 if (vid_range_start
!= 0) {
312 /* Call it once more to send any left over vlans */
313 err
= br_fill_ifvlaninfo_range(skb
, vid_range_start
,
323 static int br_fill_ifvlaninfo(struct sk_buff
*skb
,
324 struct net_bridge_vlan_group
*vg
)
326 struct bridge_vlan_info vinfo
;
327 struct net_bridge_vlan
*v
;
330 pvid
= br_get_pvid(vg
);
331 list_for_each_entry_rcu(v
, &vg
->vlan_list
, vlist
) {
332 if (!br_vlan_should_use(v
))
338 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
340 if (v
->flags
& BRIDGE_VLAN_INFO_UNTAGGED
)
341 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
343 if (nla_put(skb
, IFLA_BRIDGE_VLAN_INFO
,
344 sizeof(vinfo
), &vinfo
))
345 goto nla_put_failure
;
355 * Create one netlink message for one interface
356 * Contains port and master info as well as carrier and bridge state.
358 static int br_fill_ifinfo(struct sk_buff
*skb
,
359 struct net_bridge_port
*port
,
360 u32 pid
, u32 seq
, int event
, unsigned int flags
,
361 u32 filter_mask
, const struct net_device
*dev
)
363 struct net_bridge
*br
;
364 struct ifinfomsg
*hdr
;
365 struct nlmsghdr
*nlh
;
366 u8 operstate
= netif_running(dev
) ? dev
->operstate
: IF_OPER_DOWN
;
371 br
= netdev_priv(dev
);
373 br_debug(br
, "br_fill_info event %d port %s master %s\n",
374 event
, dev
->name
, br
->dev
->name
);
376 nlh
= nlmsg_put(skb
, pid
, seq
, event
, sizeof(*hdr
), flags
);
380 hdr
= nlmsg_data(nlh
);
381 hdr
->ifi_family
= AF_BRIDGE
;
383 hdr
->ifi_type
= dev
->type
;
384 hdr
->ifi_index
= dev
->ifindex
;
385 hdr
->ifi_flags
= dev_get_flags(dev
);
388 if (nla_put_string(skb
, IFLA_IFNAME
, dev
->name
) ||
389 nla_put_u32(skb
, IFLA_MASTER
, br
->dev
->ifindex
) ||
390 nla_put_u32(skb
, IFLA_MTU
, dev
->mtu
) ||
391 nla_put_u8(skb
, IFLA_OPERSTATE
, operstate
) ||
393 nla_put(skb
, IFLA_ADDRESS
, dev
->addr_len
, dev
->dev_addr
)) ||
394 (dev
->ifindex
!= dev_get_iflink(dev
) &&
395 nla_put_u32(skb
, IFLA_LINK
, dev_get_iflink(dev
))))
396 goto nla_put_failure
;
398 if (event
== RTM_NEWLINK
&& port
) {
400 = nla_nest_start(skb
, IFLA_PROTINFO
| NLA_F_NESTED
);
402 if (nest
== NULL
|| br_port_fill_attrs(skb
, port
) < 0)
403 goto nla_put_failure
;
404 nla_nest_end(skb
, nest
);
407 /* Check if the VID information is requested */
408 if ((filter_mask
& RTEXT_FILTER_BRVLAN
) ||
409 (filter_mask
& RTEXT_FILTER_BRVLAN_COMPRESSED
)) {
410 struct net_bridge_vlan_group
*vg
;
414 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
417 vg
= nbp_vlan_group_rcu(port
);
419 vg
= br_vlan_group_rcu(br
);
421 if (!vg
|| !vg
->num_vlans
) {
425 af
= nla_nest_start(skb
, IFLA_AF_SPEC
);
428 goto nla_put_failure
;
430 if (filter_mask
& RTEXT_FILTER_BRVLAN_COMPRESSED
)
431 err
= br_fill_ifvlaninfo_compressed(skb
, vg
);
433 err
= br_fill_ifvlaninfo(skb
, vg
);
435 if (port
&& (port
->flags
& BR_VLAN_TUNNEL
))
436 err
= br_fill_vlan_tunnel_info(skb
, vg
);
439 goto nla_put_failure
;
440 nla_nest_end(skb
, af
);
448 nlmsg_cancel(skb
, nlh
);
453 * Notify listeners of a change in port information
455 void br_ifinfo_notify(int event
, struct net_bridge_port
*port
)
460 u32 filter
= RTEXT_FILTER_BRVLAN_COMPRESSED
;
465 net
= dev_net(port
->dev
);
466 br_debug(port
->br
, "port %u(%s) event %d\n",
467 (unsigned int)port
->port_no
, port
->dev
->name
, event
);
469 skb
= nlmsg_new(br_nlmsg_size(port
->dev
, filter
), GFP_ATOMIC
);
473 err
= br_fill_ifinfo(skb
, port
, 0, 0, event
, 0, filter
, port
->dev
);
475 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
476 WARN_ON(err
== -EMSGSIZE
);
480 rtnl_notify(skb
, net
, 0, RTNLGRP_LINK
, NULL
, GFP_ATOMIC
);
483 rtnl_set_sk_err(net
, RTNLGRP_LINK
, err
);
488 * Dump information about all ports, in response to GETLINK
490 int br_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
491 struct net_device
*dev
, u32 filter_mask
, int nlflags
)
493 struct net_bridge_port
*port
= br_port_get_rtnl(dev
);
495 if (!port
&& !(filter_mask
& RTEXT_FILTER_BRVLAN
) &&
496 !(filter_mask
& RTEXT_FILTER_BRVLAN_COMPRESSED
))
499 return br_fill_ifinfo(skb
, port
, pid
, seq
, RTM_NEWLINK
, nlflags
,
503 static int br_vlan_info(struct net_bridge
*br
, struct net_bridge_port
*p
,
504 int cmd
, struct bridge_vlan_info
*vinfo
)
511 /* if the MASTER flag is set this will act on the global
512 * per-VLAN entry as well
514 err
= nbp_vlan_add(p
, vinfo
->vid
, vinfo
->flags
);
518 vinfo
->flags
|= BRIDGE_VLAN_INFO_BRENTRY
;
519 err
= br_vlan_add(br
, vinfo
->vid
, vinfo
->flags
);
525 nbp_vlan_delete(p
, vinfo
->vid
);
526 if (vinfo
->flags
& BRIDGE_VLAN_INFO_MASTER
)
527 br_vlan_delete(p
->br
, vinfo
->vid
);
529 br_vlan_delete(br
, vinfo
->vid
);
537 static int br_process_vlan_info(struct net_bridge
*br
,
538 struct net_bridge_port
*p
, int cmd
,
539 struct bridge_vlan_info
*vinfo_curr
,
540 struct bridge_vlan_info
**vinfo_last
)
542 if (!vinfo_curr
->vid
|| vinfo_curr
->vid
>= VLAN_VID_MASK
)
545 if (vinfo_curr
->flags
& BRIDGE_VLAN_INFO_RANGE_BEGIN
) {
546 /* check if we are already processing a range */
549 *vinfo_last
= vinfo_curr
;
550 /* don't allow range of pvids */
551 if ((*vinfo_last
)->flags
& BRIDGE_VLAN_INFO_PVID
)
557 struct bridge_vlan_info tmp_vinfo
;
560 if (!(vinfo_curr
->flags
& BRIDGE_VLAN_INFO_RANGE_END
))
563 if (vinfo_curr
->vid
<= (*vinfo_last
)->vid
)
566 memcpy(&tmp_vinfo
, *vinfo_last
,
567 sizeof(struct bridge_vlan_info
));
568 for (v
= (*vinfo_last
)->vid
; v
<= vinfo_curr
->vid
; v
++) {
570 err
= br_vlan_info(br
, p
, cmd
, &tmp_vinfo
);
579 return br_vlan_info(br
, p
, cmd
, vinfo_curr
);
582 static int br_afspec(struct net_bridge
*br
,
583 struct net_bridge_port
*p
,
584 struct nlattr
*af_spec
,
587 struct bridge_vlan_info
*vinfo_curr
= NULL
;
588 struct bridge_vlan_info
*vinfo_last
= NULL
;
590 struct vtunnel_info tinfo_last
= {};
591 struct vtunnel_info tinfo_curr
= {};
594 nla_for_each_nested(attr
, af_spec
, rem
) {
596 switch (nla_type(attr
)) {
597 case IFLA_BRIDGE_VLAN_TUNNEL_INFO
:
598 if (!(p
->flags
& BR_VLAN_TUNNEL
))
600 err
= br_parse_vlan_tunnel_info(attr
, &tinfo_curr
);
603 err
= br_process_vlan_tunnel_info(br
, p
, cmd
,
609 case IFLA_BRIDGE_VLAN_INFO
:
610 if (nla_len(attr
) != sizeof(struct bridge_vlan_info
))
612 vinfo_curr
= nla_data(attr
);
613 err
= br_process_vlan_info(br
, p
, cmd
, vinfo_curr
,
624 static const struct nla_policy br_port_policy
[IFLA_BRPORT_MAX
+ 1] = {
625 [IFLA_BRPORT_STATE
] = { .type
= NLA_U8
},
626 [IFLA_BRPORT_COST
] = { .type
= NLA_U32
},
627 [IFLA_BRPORT_PRIORITY
] = { .type
= NLA_U16
},
628 [IFLA_BRPORT_MODE
] = { .type
= NLA_U8
},
629 [IFLA_BRPORT_GUARD
] = { .type
= NLA_U8
},
630 [IFLA_BRPORT_PROTECT
] = { .type
= NLA_U8
},
631 [IFLA_BRPORT_FAST_LEAVE
]= { .type
= NLA_U8
},
632 [IFLA_BRPORT_LEARNING
] = { .type
= NLA_U8
},
633 [IFLA_BRPORT_UNICAST_FLOOD
] = { .type
= NLA_U8
},
634 [IFLA_BRPORT_PROXYARP
] = { .type
= NLA_U8
},
635 [IFLA_BRPORT_PROXYARP_WIFI
] = { .type
= NLA_U8
},
636 [IFLA_BRPORT_MULTICAST_ROUTER
] = { .type
= NLA_U8
},
637 [IFLA_BRPORT_MCAST_TO_UCAST
] = { .type
= NLA_U8
},
638 [IFLA_BRPORT_MCAST_FLOOD
] = { .type
= NLA_U8
},
639 [IFLA_BRPORT_BCAST_FLOOD
] = { .type
= NLA_U8
},
642 /* Change the state of the port and notify spanning tree */
643 static int br_set_port_state(struct net_bridge_port
*p
, u8 state
)
645 if (state
> BR_STATE_BLOCKING
)
648 /* if kernel STP is running, don't allow changes */
649 if (p
->br
->stp_enabled
== BR_KERNEL_STP
)
652 /* if device is not up, change is not allowed
653 * if link is not present, only allowable state is disabled
655 if (!netif_running(p
->dev
) ||
656 (!netif_oper_up(p
->dev
) && state
!= BR_STATE_DISABLED
))
659 br_set_state(p
, state
);
660 br_port_state_selection(p
->br
);
664 /* Set/clear or port flags based on attribute */
665 static void br_set_port_flag(struct net_bridge_port
*p
, struct nlattr
*tb
[],
666 int attrtype
, unsigned long mask
)
669 u8 flag
= nla_get_u8(tb
[attrtype
]);
677 /* Process bridge protocol info on port */
678 static int br_setport(struct net_bridge_port
*p
, struct nlattr
*tb
[])
680 unsigned long old_flags
= p
->flags
;
681 bool br_vlan_tunnel_old
= false;
684 br_set_port_flag(p
, tb
, IFLA_BRPORT_MODE
, BR_HAIRPIN_MODE
);
685 br_set_port_flag(p
, tb
, IFLA_BRPORT_GUARD
, BR_BPDU_GUARD
);
686 br_set_port_flag(p
, tb
, IFLA_BRPORT_FAST_LEAVE
, BR_MULTICAST_FAST_LEAVE
);
687 br_set_port_flag(p
, tb
, IFLA_BRPORT_PROTECT
, BR_ROOT_BLOCK
);
688 br_set_port_flag(p
, tb
, IFLA_BRPORT_LEARNING
, BR_LEARNING
);
689 br_set_port_flag(p
, tb
, IFLA_BRPORT_UNICAST_FLOOD
, BR_FLOOD
);
690 br_set_port_flag(p
, tb
, IFLA_BRPORT_MCAST_FLOOD
, BR_MCAST_FLOOD
);
691 br_set_port_flag(p
, tb
, IFLA_BRPORT_MCAST_TO_UCAST
, BR_MULTICAST_TO_UNICAST
);
692 br_set_port_flag(p
, tb
, IFLA_BRPORT_BCAST_FLOOD
, BR_BCAST_FLOOD
);
693 br_set_port_flag(p
, tb
, IFLA_BRPORT_PROXYARP
, BR_PROXYARP
);
694 br_set_port_flag(p
, tb
, IFLA_BRPORT_PROXYARP_WIFI
, BR_PROXYARP_WIFI
);
696 br_vlan_tunnel_old
= (p
->flags
& BR_VLAN_TUNNEL
) ? true : false;
697 br_set_port_flag(p
, tb
, IFLA_BRPORT_VLAN_TUNNEL
, BR_VLAN_TUNNEL
);
698 if (br_vlan_tunnel_old
&& !(p
->flags
& BR_VLAN_TUNNEL
))
699 nbp_vlan_tunnel_info_flush(p
);
701 if (tb
[IFLA_BRPORT_COST
]) {
702 err
= br_stp_set_path_cost(p
, nla_get_u32(tb
[IFLA_BRPORT_COST
]));
707 if (tb
[IFLA_BRPORT_PRIORITY
]) {
708 err
= br_stp_set_port_priority(p
, nla_get_u16(tb
[IFLA_BRPORT_PRIORITY
]));
713 if (tb
[IFLA_BRPORT_STATE
]) {
714 err
= br_set_port_state(p
, nla_get_u8(tb
[IFLA_BRPORT_STATE
]));
719 if (tb
[IFLA_BRPORT_FLUSH
])
720 br_fdb_delete_by_port(p
->br
, p
, 0, 0);
722 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
723 if (tb
[IFLA_BRPORT_MULTICAST_ROUTER
]) {
724 u8 mcast_router
= nla_get_u8(tb
[IFLA_BRPORT_MULTICAST_ROUTER
]);
726 err
= br_multicast_set_port_router(p
, mcast_router
);
731 br_port_flags_change(p
, old_flags
^ p
->flags
);
735 /* Change state and parameters on port. */
736 int br_setlink(struct net_device
*dev
, struct nlmsghdr
*nlh
, u16 flags
)
738 struct nlattr
*protinfo
;
739 struct nlattr
*afspec
;
740 struct net_bridge_port
*p
;
741 struct nlattr
*tb
[IFLA_BRPORT_MAX
+ 1];
744 protinfo
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_PROTINFO
);
745 afspec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
746 if (!protinfo
&& !afspec
)
749 p
= br_port_get_rtnl(dev
);
750 /* We want to accept dev as bridge itself if the AF_SPEC
751 * is set to see if someone is setting vlan info on the bridge
757 if (protinfo
->nla_type
& NLA_F_NESTED
) {
758 err
= nla_parse_nested(tb
, IFLA_BRPORT_MAX
, protinfo
,
759 br_port_policy
, NULL
);
763 spin_lock_bh(&p
->br
->lock
);
764 err
= br_setport(p
, tb
);
765 spin_unlock_bh(&p
->br
->lock
);
767 /* Binary compatibility with old RSTP */
768 if (nla_len(protinfo
) < sizeof(u8
))
771 spin_lock_bh(&p
->br
->lock
);
772 err
= br_set_port_state(p
, nla_get_u8(protinfo
));
773 spin_unlock_bh(&p
->br
->lock
);
780 err
= br_afspec((struct net_bridge
*)netdev_priv(dev
), p
,
781 afspec
, RTM_SETLINK
);
785 br_ifinfo_notify(RTM_NEWLINK
, p
);
790 /* Delete port information */
791 int br_dellink(struct net_device
*dev
, struct nlmsghdr
*nlh
, u16 flags
)
793 struct nlattr
*afspec
;
794 struct net_bridge_port
*p
;
797 afspec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
801 p
= br_port_get_rtnl(dev
);
802 /* We want to accept dev as bridge itself as well */
803 if (!p
&& !(dev
->priv_flags
& IFF_EBRIDGE
))
806 err
= br_afspec((struct net_bridge
*)netdev_priv(dev
), p
,
807 afspec
, RTM_DELLINK
);
809 /* Send RTM_NEWLINK because userspace
810 * expects RTM_NEWLINK for vlan dels
812 br_ifinfo_notify(RTM_NEWLINK
, p
);
816 static int br_validate(struct nlattr
*tb
[], struct nlattr
*data
[])
818 if (tb
[IFLA_ADDRESS
]) {
819 if (nla_len(tb
[IFLA_ADDRESS
]) != ETH_ALEN
)
821 if (!is_valid_ether_addr(nla_data(tb
[IFLA_ADDRESS
])))
822 return -EADDRNOTAVAIL
;
828 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
829 if (data
[IFLA_BR_VLAN_PROTOCOL
]) {
830 switch (nla_get_be16(data
[IFLA_BR_VLAN_PROTOCOL
])) {
831 case htons(ETH_P_8021Q
):
832 case htons(ETH_P_8021AD
):
835 return -EPROTONOSUPPORT
;
839 if (data
[IFLA_BR_VLAN_DEFAULT_PVID
]) {
840 __u16 defpvid
= nla_get_u16(data
[IFLA_BR_VLAN_DEFAULT_PVID
]);
842 if (defpvid
>= VLAN_VID_MASK
)
850 static int br_port_slave_changelink(struct net_device
*brdev
,
851 struct net_device
*dev
,
853 struct nlattr
*data
[])
855 struct net_bridge
*br
= netdev_priv(brdev
);
861 spin_lock_bh(&br
->lock
);
862 ret
= br_setport(br_port_get_rtnl(dev
), data
);
863 spin_unlock_bh(&br
->lock
);
868 static int br_port_fill_slave_info(struct sk_buff
*skb
,
869 const struct net_device
*brdev
,
870 const struct net_device
*dev
)
872 return br_port_fill_attrs(skb
, br_port_get_rtnl(dev
));
875 static size_t br_port_get_slave_size(const struct net_device
*brdev
,
876 const struct net_device
*dev
)
878 return br_port_info_size();
881 static const struct nla_policy br_policy
[IFLA_BR_MAX
+ 1] = {
882 [IFLA_BR_FORWARD_DELAY
] = { .type
= NLA_U32
},
883 [IFLA_BR_HELLO_TIME
] = { .type
= NLA_U32
},
884 [IFLA_BR_MAX_AGE
] = { .type
= NLA_U32
},
885 [IFLA_BR_AGEING_TIME
] = { .type
= NLA_U32
},
886 [IFLA_BR_STP_STATE
] = { .type
= NLA_U32
},
887 [IFLA_BR_PRIORITY
] = { .type
= NLA_U16
},
888 [IFLA_BR_VLAN_FILTERING
] = { .type
= NLA_U8
},
889 [IFLA_BR_VLAN_PROTOCOL
] = { .type
= NLA_U16
},
890 [IFLA_BR_GROUP_FWD_MASK
] = { .type
= NLA_U16
},
891 [IFLA_BR_GROUP_ADDR
] = { .type
= NLA_BINARY
,
893 [IFLA_BR_MCAST_ROUTER
] = { .type
= NLA_U8
},
894 [IFLA_BR_MCAST_SNOOPING
] = { .type
= NLA_U8
},
895 [IFLA_BR_MCAST_QUERY_USE_IFADDR
] = { .type
= NLA_U8
},
896 [IFLA_BR_MCAST_QUERIER
] = { .type
= NLA_U8
},
897 [IFLA_BR_MCAST_HASH_ELASTICITY
] = { .type
= NLA_U32
},
898 [IFLA_BR_MCAST_HASH_MAX
] = { .type
= NLA_U32
},
899 [IFLA_BR_MCAST_LAST_MEMBER_CNT
] = { .type
= NLA_U32
},
900 [IFLA_BR_MCAST_STARTUP_QUERY_CNT
] = { .type
= NLA_U32
},
901 [IFLA_BR_MCAST_LAST_MEMBER_INTVL
] = { .type
= NLA_U64
},
902 [IFLA_BR_MCAST_MEMBERSHIP_INTVL
] = { .type
= NLA_U64
},
903 [IFLA_BR_MCAST_QUERIER_INTVL
] = { .type
= NLA_U64
},
904 [IFLA_BR_MCAST_QUERY_INTVL
] = { .type
= NLA_U64
},
905 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
] = { .type
= NLA_U64
},
906 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL
] = { .type
= NLA_U64
},
907 [IFLA_BR_NF_CALL_IPTABLES
] = { .type
= NLA_U8
},
908 [IFLA_BR_NF_CALL_IP6TABLES
] = { .type
= NLA_U8
},
909 [IFLA_BR_NF_CALL_ARPTABLES
] = { .type
= NLA_U8
},
910 [IFLA_BR_VLAN_DEFAULT_PVID
] = { .type
= NLA_U16
},
911 [IFLA_BR_VLAN_STATS_ENABLED
] = { .type
= NLA_U8
},
912 [IFLA_BR_MCAST_STATS_ENABLED
] = { .type
= NLA_U8
},
913 [IFLA_BR_MCAST_IGMP_VERSION
] = { .type
= NLA_U8
},
914 [IFLA_BR_MCAST_MLD_VERSION
] = { .type
= NLA_U8
},
917 static int br_changelink(struct net_device
*brdev
, struct nlattr
*tb
[],
918 struct nlattr
*data
[])
920 struct net_bridge
*br
= netdev_priv(brdev
);
926 if (data
[IFLA_BR_FORWARD_DELAY
]) {
927 err
= br_set_forward_delay(br
, nla_get_u32(data
[IFLA_BR_FORWARD_DELAY
]));
932 if (data
[IFLA_BR_HELLO_TIME
]) {
933 err
= br_set_hello_time(br
, nla_get_u32(data
[IFLA_BR_HELLO_TIME
]));
938 if (data
[IFLA_BR_MAX_AGE
]) {
939 err
= br_set_max_age(br
, nla_get_u32(data
[IFLA_BR_MAX_AGE
]));
944 if (data
[IFLA_BR_AGEING_TIME
]) {
945 err
= br_set_ageing_time(br
, nla_get_u32(data
[IFLA_BR_AGEING_TIME
]));
950 if (data
[IFLA_BR_STP_STATE
]) {
951 u32 stp_enabled
= nla_get_u32(data
[IFLA_BR_STP_STATE
]);
953 br_stp_set_enabled(br
, stp_enabled
);
956 if (data
[IFLA_BR_PRIORITY
]) {
957 u32 priority
= nla_get_u16(data
[IFLA_BR_PRIORITY
]);
959 br_stp_set_bridge_priority(br
, priority
);
962 if (data
[IFLA_BR_VLAN_FILTERING
]) {
963 u8 vlan_filter
= nla_get_u8(data
[IFLA_BR_VLAN_FILTERING
]);
965 err
= __br_vlan_filter_toggle(br
, vlan_filter
);
970 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
971 if (data
[IFLA_BR_VLAN_PROTOCOL
]) {
972 __be16 vlan_proto
= nla_get_be16(data
[IFLA_BR_VLAN_PROTOCOL
]);
974 err
= __br_vlan_set_proto(br
, vlan_proto
);
979 if (data
[IFLA_BR_VLAN_DEFAULT_PVID
]) {
980 __u16 defpvid
= nla_get_u16(data
[IFLA_BR_VLAN_DEFAULT_PVID
]);
982 err
= __br_vlan_set_default_pvid(br
, defpvid
);
987 if (data
[IFLA_BR_VLAN_STATS_ENABLED
]) {
988 __u8 vlan_stats
= nla_get_u8(data
[IFLA_BR_VLAN_STATS_ENABLED
]);
990 err
= br_vlan_set_stats(br
, vlan_stats
);
996 if (data
[IFLA_BR_GROUP_FWD_MASK
]) {
997 u16 fwd_mask
= nla_get_u16(data
[IFLA_BR_GROUP_FWD_MASK
]);
999 if (fwd_mask
& BR_GROUPFWD_RESTRICTED
)
1001 br
->group_fwd_mask
= fwd_mask
;
1004 if (data
[IFLA_BR_GROUP_ADDR
]) {
1005 u8 new_addr
[ETH_ALEN
];
1007 if (nla_len(data
[IFLA_BR_GROUP_ADDR
]) != ETH_ALEN
)
1009 memcpy(new_addr
, nla_data(data
[IFLA_BR_GROUP_ADDR
]), ETH_ALEN
);
1010 if (!is_link_local_ether_addr(new_addr
))
1012 if (new_addr
[5] == 1 || /* 802.3x Pause address */
1013 new_addr
[5] == 2 || /* 802.3ad Slow protocols */
1014 new_addr
[5] == 3) /* 802.1X PAE address */
1016 spin_lock_bh(&br
->lock
);
1017 memcpy(br
->group_addr
, new_addr
, sizeof(br
->group_addr
));
1018 spin_unlock_bh(&br
->lock
);
1019 br
->group_addr_set
= true;
1020 br_recalculate_fwd_mask(br
);
1023 if (data
[IFLA_BR_FDB_FLUSH
])
1026 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1027 if (data
[IFLA_BR_MCAST_ROUTER
]) {
1028 u8 multicast_router
= nla_get_u8(data
[IFLA_BR_MCAST_ROUTER
]);
1030 err
= br_multicast_set_router(br
, multicast_router
);
1035 if (data
[IFLA_BR_MCAST_SNOOPING
]) {
1036 u8 mcast_snooping
= nla_get_u8(data
[IFLA_BR_MCAST_SNOOPING
]);
1038 err
= br_multicast_toggle(br
, mcast_snooping
);
1043 if (data
[IFLA_BR_MCAST_QUERY_USE_IFADDR
]) {
1046 val
= nla_get_u8(data
[IFLA_BR_MCAST_QUERY_USE_IFADDR
]);
1047 br
->multicast_query_use_ifaddr
= !!val
;
1050 if (data
[IFLA_BR_MCAST_QUERIER
]) {
1051 u8 mcast_querier
= nla_get_u8(data
[IFLA_BR_MCAST_QUERIER
]);
1053 err
= br_multicast_set_querier(br
, mcast_querier
);
1058 if (data
[IFLA_BR_MCAST_HASH_ELASTICITY
]) {
1059 u32 val
= nla_get_u32(data
[IFLA_BR_MCAST_HASH_ELASTICITY
]);
1061 br
->hash_elasticity
= val
;
1064 if (data
[IFLA_BR_MCAST_HASH_MAX
]) {
1065 u32 hash_max
= nla_get_u32(data
[IFLA_BR_MCAST_HASH_MAX
]);
1067 err
= br_multicast_set_hash_max(br
, hash_max
);
1072 if (data
[IFLA_BR_MCAST_LAST_MEMBER_CNT
]) {
1073 u32 val
= nla_get_u32(data
[IFLA_BR_MCAST_LAST_MEMBER_CNT
]);
1075 br
->multicast_last_member_count
= val
;
1078 if (data
[IFLA_BR_MCAST_STARTUP_QUERY_CNT
]) {
1079 u32 val
= nla_get_u32(data
[IFLA_BR_MCAST_STARTUP_QUERY_CNT
]);
1081 br
->multicast_startup_query_count
= val
;
1084 if (data
[IFLA_BR_MCAST_LAST_MEMBER_INTVL
]) {
1085 u64 val
= nla_get_u64(data
[IFLA_BR_MCAST_LAST_MEMBER_INTVL
]);
1087 br
->multicast_last_member_interval
= clock_t_to_jiffies(val
);
1090 if (data
[IFLA_BR_MCAST_MEMBERSHIP_INTVL
]) {
1091 u64 val
= nla_get_u64(data
[IFLA_BR_MCAST_MEMBERSHIP_INTVL
]);
1093 br
->multicast_membership_interval
= clock_t_to_jiffies(val
);
1096 if (data
[IFLA_BR_MCAST_QUERIER_INTVL
]) {
1097 u64 val
= nla_get_u64(data
[IFLA_BR_MCAST_QUERIER_INTVL
]);
1099 br
->multicast_querier_interval
= clock_t_to_jiffies(val
);
1102 if (data
[IFLA_BR_MCAST_QUERY_INTVL
]) {
1103 u64 val
= nla_get_u64(data
[IFLA_BR_MCAST_QUERY_INTVL
]);
1105 br
->multicast_query_interval
= clock_t_to_jiffies(val
);
1108 if (data
[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
]) {
1109 u64 val
= nla_get_u64(data
[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
]);
1111 br
->multicast_query_response_interval
= clock_t_to_jiffies(val
);
1114 if (data
[IFLA_BR_MCAST_STARTUP_QUERY_INTVL
]) {
1115 u64 val
= nla_get_u64(data
[IFLA_BR_MCAST_STARTUP_QUERY_INTVL
]);
1117 br
->multicast_startup_query_interval
= clock_t_to_jiffies(val
);
1120 if (data
[IFLA_BR_MCAST_STATS_ENABLED
]) {
1123 mcast_stats
= nla_get_u8(data
[IFLA_BR_MCAST_STATS_ENABLED
]);
1124 br
->multicast_stats_enabled
= !!mcast_stats
;
1127 if (data
[IFLA_BR_MCAST_IGMP_VERSION
]) {
1130 igmp_version
= nla_get_u8(data
[IFLA_BR_MCAST_IGMP_VERSION
]);
1131 err
= br_multicast_set_igmp_version(br
, igmp_version
);
1136 #if IS_ENABLED(CONFIG_IPV6)
1137 if (data
[IFLA_BR_MCAST_MLD_VERSION
]) {
1140 mld_version
= nla_get_u8(data
[IFLA_BR_MCAST_MLD_VERSION
]);
1141 err
= br_multicast_set_mld_version(br
, mld_version
);
1147 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1148 if (data
[IFLA_BR_NF_CALL_IPTABLES
]) {
1149 u8 val
= nla_get_u8(data
[IFLA_BR_NF_CALL_IPTABLES
]);
1151 br
->nf_call_iptables
= val
? true : false;
1154 if (data
[IFLA_BR_NF_CALL_IP6TABLES
]) {
1155 u8 val
= nla_get_u8(data
[IFLA_BR_NF_CALL_IP6TABLES
]);
1157 br
->nf_call_ip6tables
= val
? true : false;
1160 if (data
[IFLA_BR_NF_CALL_ARPTABLES
]) {
1161 u8 val
= nla_get_u8(data
[IFLA_BR_NF_CALL_ARPTABLES
]);
1163 br
->nf_call_arptables
= val
? true : false;
1170 static int br_dev_newlink(struct net
*src_net
, struct net_device
*dev
,
1171 struct nlattr
*tb
[], struct nlattr
*data
[])
1173 struct net_bridge
*br
= netdev_priv(dev
);
1176 if (tb
[IFLA_ADDRESS
]) {
1177 spin_lock_bh(&br
->lock
);
1178 br_stp_change_bridge_id(br
, nla_data(tb
[IFLA_ADDRESS
]));
1179 spin_unlock_bh(&br
->lock
);
1182 err
= register_netdevice(dev
);
1186 err
= br_changelink(dev
, tb
, data
);
1188 unregister_netdevice(dev
);
1192 static size_t br_get_size(const struct net_device
*brdev
)
1194 return nla_total_size(sizeof(u32
)) + /* IFLA_BR_FORWARD_DELAY */
1195 nla_total_size(sizeof(u32
)) + /* IFLA_BR_HELLO_TIME */
1196 nla_total_size(sizeof(u32
)) + /* IFLA_BR_MAX_AGE */
1197 nla_total_size(sizeof(u32
)) + /* IFLA_BR_AGEING_TIME */
1198 nla_total_size(sizeof(u32
)) + /* IFLA_BR_STP_STATE */
1199 nla_total_size(sizeof(u16
)) + /* IFLA_BR_PRIORITY */
1200 nla_total_size(sizeof(u8
)) + /* IFLA_BR_VLAN_FILTERING */
1201 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
1202 nla_total_size(sizeof(__be16
)) + /* IFLA_BR_VLAN_PROTOCOL */
1203 nla_total_size(sizeof(u16
)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
1204 nla_total_size(sizeof(u8
)) + /* IFLA_BR_VLAN_STATS_ENABLED */
1206 nla_total_size(sizeof(u16
)) + /* IFLA_BR_GROUP_FWD_MASK */
1207 nla_total_size(sizeof(struct ifla_bridge_id
)) + /* IFLA_BR_ROOT_ID */
1208 nla_total_size(sizeof(struct ifla_bridge_id
)) + /* IFLA_BR_BRIDGE_ID */
1209 nla_total_size(sizeof(u16
)) + /* IFLA_BR_ROOT_PORT */
1210 nla_total_size(sizeof(u32
)) + /* IFLA_BR_ROOT_PATH_COST */
1211 nla_total_size(sizeof(u8
)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1212 nla_total_size(sizeof(u8
)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
1213 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_HELLO_TIMER */
1214 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_TCN_TIMER */
1215 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1216 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_GC_TIMER */
1217 nla_total_size(ETH_ALEN
) + /* IFLA_BR_GROUP_ADDR */
1218 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1219 nla_total_size(sizeof(u8
)) + /* IFLA_BR_MCAST_ROUTER */
1220 nla_total_size(sizeof(u8
)) + /* IFLA_BR_MCAST_SNOOPING */
1221 nla_total_size(sizeof(u8
)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
1222 nla_total_size(sizeof(u8
)) + /* IFLA_BR_MCAST_QUERIER */
1223 nla_total_size(sizeof(u8
)) + /* IFLA_BR_MCAST_STATS_ENABLED */
1224 nla_total_size(sizeof(u32
)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1225 nla_total_size(sizeof(u32
)) + /* IFLA_BR_MCAST_HASH_MAX */
1226 nla_total_size(sizeof(u32
)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1227 nla_total_size(sizeof(u32
)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
1228 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1229 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1230 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1231 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1232 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1233 nla_total_size_64bit(sizeof(u64
)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
1234 nla_total_size(sizeof(u8
)) + /* IFLA_BR_MCAST_IGMP_VERSION */
1235 nla_total_size(sizeof(u8
)) + /* IFLA_BR_MCAST_MLD_VERSION */
1237 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1238 nla_total_size(sizeof(u8
)) + /* IFLA_BR_NF_CALL_IPTABLES */
1239 nla_total_size(sizeof(u8
)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1240 nla_total_size(sizeof(u8
)) + /* IFLA_BR_NF_CALL_ARPTABLES */
1245 static int br_fill_info(struct sk_buff
*skb
, const struct net_device
*brdev
)
1247 struct net_bridge
*br
= netdev_priv(brdev
);
1248 u32 forward_delay
= jiffies_to_clock_t(br
->forward_delay
);
1249 u32 hello_time
= jiffies_to_clock_t(br
->hello_time
);
1250 u32 age_time
= jiffies_to_clock_t(br
->max_age
);
1251 u32 ageing_time
= jiffies_to_clock_t(br
->ageing_time
);
1252 u32 stp_enabled
= br
->stp_enabled
;
1253 u16 priority
= (br
->bridge_id
.prio
[0] << 8) | br
->bridge_id
.prio
[1];
1254 u8 vlan_enabled
= br_vlan_enabled(br
);
1257 clockval
= br_timer_value(&br
->hello_timer
);
1258 if (nla_put_u64_64bit(skb
, IFLA_BR_HELLO_TIMER
, clockval
, IFLA_BR_PAD
))
1260 clockval
= br_timer_value(&br
->tcn_timer
);
1261 if (nla_put_u64_64bit(skb
, IFLA_BR_TCN_TIMER
, clockval
, IFLA_BR_PAD
))
1263 clockval
= br_timer_value(&br
->topology_change_timer
);
1264 if (nla_put_u64_64bit(skb
, IFLA_BR_TOPOLOGY_CHANGE_TIMER
, clockval
,
1267 clockval
= br_timer_value(&br
->gc_work
.timer
);
1268 if (nla_put_u64_64bit(skb
, IFLA_BR_GC_TIMER
, clockval
, IFLA_BR_PAD
))
1271 if (nla_put_u32(skb
, IFLA_BR_FORWARD_DELAY
, forward_delay
) ||
1272 nla_put_u32(skb
, IFLA_BR_HELLO_TIME
, hello_time
) ||
1273 nla_put_u32(skb
, IFLA_BR_MAX_AGE
, age_time
) ||
1274 nla_put_u32(skb
, IFLA_BR_AGEING_TIME
, ageing_time
) ||
1275 nla_put_u32(skb
, IFLA_BR_STP_STATE
, stp_enabled
) ||
1276 nla_put_u16(skb
, IFLA_BR_PRIORITY
, priority
) ||
1277 nla_put_u8(skb
, IFLA_BR_VLAN_FILTERING
, vlan_enabled
) ||
1278 nla_put_u16(skb
, IFLA_BR_GROUP_FWD_MASK
, br
->group_fwd_mask
) ||
1279 nla_put(skb
, IFLA_BR_BRIDGE_ID
, sizeof(struct ifla_bridge_id
),
1281 nla_put(skb
, IFLA_BR_ROOT_ID
, sizeof(struct ifla_bridge_id
),
1282 &br
->designated_root
) ||
1283 nla_put_u16(skb
, IFLA_BR_ROOT_PORT
, br
->root_port
) ||
1284 nla_put_u32(skb
, IFLA_BR_ROOT_PATH_COST
, br
->root_path_cost
) ||
1285 nla_put_u8(skb
, IFLA_BR_TOPOLOGY_CHANGE
, br
->topology_change
) ||
1286 nla_put_u8(skb
, IFLA_BR_TOPOLOGY_CHANGE_DETECTED
,
1287 br
->topology_change_detected
) ||
1288 nla_put(skb
, IFLA_BR_GROUP_ADDR
, ETH_ALEN
, br
->group_addr
))
1291 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
1292 if (nla_put_be16(skb
, IFLA_BR_VLAN_PROTOCOL
, br
->vlan_proto
) ||
1293 nla_put_u16(skb
, IFLA_BR_VLAN_DEFAULT_PVID
, br
->default_pvid
) ||
1294 nla_put_u8(skb
, IFLA_BR_VLAN_STATS_ENABLED
, br
->vlan_stats_enabled
))
1297 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1298 if (nla_put_u8(skb
, IFLA_BR_MCAST_ROUTER
, br
->multicast_router
) ||
1299 nla_put_u8(skb
, IFLA_BR_MCAST_SNOOPING
, !br
->multicast_disabled
) ||
1300 nla_put_u8(skb
, IFLA_BR_MCAST_QUERY_USE_IFADDR
,
1301 br
->multicast_query_use_ifaddr
) ||
1302 nla_put_u8(skb
, IFLA_BR_MCAST_QUERIER
, br
->multicast_querier
) ||
1303 nla_put_u8(skb
, IFLA_BR_MCAST_STATS_ENABLED
,
1304 br
->multicast_stats_enabled
) ||
1305 nla_put_u32(skb
, IFLA_BR_MCAST_HASH_ELASTICITY
,
1306 br
->hash_elasticity
) ||
1307 nla_put_u32(skb
, IFLA_BR_MCAST_HASH_MAX
, br
->hash_max
) ||
1308 nla_put_u32(skb
, IFLA_BR_MCAST_LAST_MEMBER_CNT
,
1309 br
->multicast_last_member_count
) ||
1310 nla_put_u32(skb
, IFLA_BR_MCAST_STARTUP_QUERY_CNT
,
1311 br
->multicast_startup_query_count
) ||
1312 nla_put_u8(skb
, IFLA_BR_MCAST_IGMP_VERSION
,
1313 br
->multicast_igmp_version
))
1315 #if IS_ENABLED(CONFIG_IPV6)
1316 if (nla_put_u8(skb
, IFLA_BR_MCAST_MLD_VERSION
,
1317 br
->multicast_mld_version
))
1320 clockval
= jiffies_to_clock_t(br
->multicast_last_member_interval
);
1321 if (nla_put_u64_64bit(skb
, IFLA_BR_MCAST_LAST_MEMBER_INTVL
, clockval
,
1324 clockval
= jiffies_to_clock_t(br
->multicast_membership_interval
);
1325 if (nla_put_u64_64bit(skb
, IFLA_BR_MCAST_MEMBERSHIP_INTVL
, clockval
,
1328 clockval
= jiffies_to_clock_t(br
->multicast_querier_interval
);
1329 if (nla_put_u64_64bit(skb
, IFLA_BR_MCAST_QUERIER_INTVL
, clockval
,
1332 clockval
= jiffies_to_clock_t(br
->multicast_query_interval
);
1333 if (nla_put_u64_64bit(skb
, IFLA_BR_MCAST_QUERY_INTVL
, clockval
,
1336 clockval
= jiffies_to_clock_t(br
->multicast_query_response_interval
);
1337 if (nla_put_u64_64bit(skb
, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
, clockval
,
1340 clockval
= jiffies_to_clock_t(br
->multicast_startup_query_interval
);
1341 if (nla_put_u64_64bit(skb
, IFLA_BR_MCAST_STARTUP_QUERY_INTVL
, clockval
,
1345 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1346 if (nla_put_u8(skb
, IFLA_BR_NF_CALL_IPTABLES
,
1347 br
->nf_call_iptables
? 1 : 0) ||
1348 nla_put_u8(skb
, IFLA_BR_NF_CALL_IP6TABLES
,
1349 br
->nf_call_ip6tables
? 1 : 0) ||
1350 nla_put_u8(skb
, IFLA_BR_NF_CALL_ARPTABLES
,
1351 br
->nf_call_arptables
? 1 : 0))
1358 static size_t br_get_linkxstats_size(const struct net_device
*dev
, int attr
)
1360 struct net_bridge_port
*p
= NULL
;
1361 struct net_bridge_vlan_group
*vg
;
1362 struct net_bridge_vlan
*v
;
1363 struct net_bridge
*br
;
1367 case IFLA_STATS_LINK_XSTATS
:
1368 br
= netdev_priv(dev
);
1369 vg
= br_vlan_group(br
);
1371 case IFLA_STATS_LINK_XSTATS_SLAVE
:
1372 p
= br_port_get_rtnl(dev
);
1376 vg
= nbp_vlan_group(p
);
1383 /* we need to count all, even placeholder entries */
1384 list_for_each_entry(v
, &vg
->vlan_list
, vlist
)
1388 return numvls
* nla_total_size(sizeof(struct bridge_vlan_xstats
)) +
1389 nla_total_size(sizeof(struct br_mcast_stats
)) +
1393 static int br_fill_linkxstats(struct sk_buff
*skb
,
1394 const struct net_device
*dev
,
1395 int *prividx
, int attr
)
1397 struct nlattr
*nla __maybe_unused
;
1398 struct net_bridge_port
*p
= NULL
;
1399 struct net_bridge_vlan_group
*vg
;
1400 struct net_bridge_vlan
*v
;
1401 struct net_bridge
*br
;
1402 struct nlattr
*nest
;
1406 case IFLA_STATS_LINK_XSTATS
:
1407 br
= netdev_priv(dev
);
1408 vg
= br_vlan_group(br
);
1410 case IFLA_STATS_LINK_XSTATS_SLAVE
:
1411 p
= br_port_get_rtnl(dev
);
1415 vg
= nbp_vlan_group(p
);
1421 nest
= nla_nest_start(skb
, LINK_XSTATS_TYPE_BRIDGE
);
1428 pvid
= br_get_pvid(vg
);
1429 list_for_each_entry(v
, &vg
->vlan_list
, vlist
) {
1430 struct bridge_vlan_xstats vxi
;
1431 struct br_vlan_stats stats
;
1433 if (++vl_idx
< *prividx
)
1435 memset(&vxi
, 0, sizeof(vxi
));
1437 vxi
.flags
= v
->flags
;
1439 vxi
.flags
|= BRIDGE_VLAN_INFO_PVID
;
1440 br_vlan_get_stats(v
, &stats
);
1441 vxi
.rx_bytes
= stats
.rx_bytes
;
1442 vxi
.rx_packets
= stats
.rx_packets
;
1443 vxi
.tx_bytes
= stats
.tx_bytes
;
1444 vxi
.tx_packets
= stats
.tx_packets
;
1446 if (nla_put(skb
, BRIDGE_XSTATS_VLAN
, sizeof(vxi
), &vxi
))
1447 goto nla_put_failure
;
1451 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1452 if (++vl_idx
>= *prividx
) {
1453 nla
= nla_reserve_64bit(skb
, BRIDGE_XSTATS_MCAST
,
1454 sizeof(struct br_mcast_stats
),
1457 goto nla_put_failure
;
1458 br_multicast_get_stats(br
, p
, nla_data(nla
));
1461 nla_nest_end(skb
, nest
);
1467 nla_nest_end(skb
, nest
);
1473 static struct rtnl_af_ops br_af_ops __read_mostly
= {
1474 .family
= AF_BRIDGE
,
1475 .get_link_af_size
= br_get_link_af_size_filtered
,
1478 struct rtnl_link_ops br_link_ops __read_mostly
= {
1480 .priv_size
= sizeof(struct net_bridge
),
1481 .setup
= br_dev_setup
,
1482 .maxtype
= IFLA_BR_MAX
,
1483 .policy
= br_policy
,
1484 .validate
= br_validate
,
1485 .newlink
= br_dev_newlink
,
1486 .changelink
= br_changelink
,
1487 .dellink
= br_dev_delete
,
1488 .get_size
= br_get_size
,
1489 .fill_info
= br_fill_info
,
1490 .fill_linkxstats
= br_fill_linkxstats
,
1491 .get_linkxstats_size
= br_get_linkxstats_size
,
1493 .slave_maxtype
= IFLA_BRPORT_MAX
,
1494 .slave_policy
= br_port_policy
,
1495 .slave_changelink
= br_port_slave_changelink
,
1496 .get_slave_size
= br_port_get_slave_size
,
1497 .fill_slave_info
= br_port_fill_slave_info
,
1500 int __init
br_netlink_init(void)
1505 rtnl_af_register(&br_af_ops
);
1507 err
= rtnl_link_register(&br_link_ops
);
1514 rtnl_af_unregister(&br_af_ops
);
1519 void br_netlink_fini(void)
1522 rtnl_af_unregister(&br_af_ops
);
1523 rtnl_link_unregister(&br_link_ops
);