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bridge: netlink: export port's bridge id

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Add IFLA_BRPORT_BRIDGE_ID to allow getting the designated bridge id via
netlink.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2015-10-06 14:11:56 +02:00 committed by David S. Miller
parent 4ebc7660ab
commit 80df9a2692
2 changed files with 5 additions and 1 deletions
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1
include/uapi/linux/if_link.h
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@ -293,6 +293,7 @@ enum {
IFLA_BRPORT_LEARNING_SYNC, /* mac learning sync from device */
IFLA_BRPORT_PROXYARP_WIFI, /* proxy ARP for Wi-Fi */
IFLA_BRPORT_ROOT_ID, /* designated root */
IFLA_BRPORT_BRIDGE_ID, /* designated bridge */
__IFLA_BRPORT_MAX
};
#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)

5
net/bridge/br_netlink.c
View File

@ -128,6 +128,7 @@ static inline size_t br_port_info_size(void)
+ nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
+ nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
+ nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
+ nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
+ 0;
}
@ -163,7 +164,9 @@ static int br_port_fill_attrs(struct sk_buff *skb,
nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
!!(p->flags & BR_PROXYARP_WIFI)) ||
nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
&p->designated_root))
&p->designated_root) ||
nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
&p->designated_bridge))
return -EMSGSIZE;
return 0;