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bridge: netlink: export port's designated cost and port

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Add IFLA_BRPORT_DESIGNATED_(COST|PORT) to allow getting the port's
designated cost and port respectively 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 14:11:57 +02:00 committed by David S. Miller
parent 80df9a2692
commit 96f94e7f4a
2 changed files with 7 additions and 1 deletions
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2
include/uapi/linux/if_link.h
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@ -294,6 +294,8 @@ enum {
IFLA_BRPORT_PROXYARP_WIFI, /* proxy ARP for Wi-Fi */
IFLA_BRPORT_ROOT_ID, /* designated root */
IFLA_BRPORT_BRIDGE_ID, /* designated bridge */
IFLA_BRPORT_DESIGNATED_PORT,
IFLA_BRPORT_DESIGNATED_COST,
__IFLA_BRPORT_MAX
};
#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)

6
net/bridge/br_netlink.c
View File

@ -129,6 +129,8 @@ static inline size_t br_port_info_size(void)
+ 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 */
+ nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
+ nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
+ 0;
}
@ -166,7 +168,9 @@ static int br_port_fill_attrs(struct sk_buff *skb,
nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
&p->designated_root) ||
nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
&p->designated_bridge))
&p->designated_bridge) ||
nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost))
return -EMSGSIZE;
return 0;