From 79b859f573d6afa64e328cc7f50ad7a209e0c92d Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Sun, 4 Oct 2015 14:23:43 +0200 Subject: [PATCH] bridge: netlink: add support for multicast_last_member_count Add IFLA_BR_MCAST_LAST_MEMBER_CNT to allow setting/getting br->multicast_last_member_count via netlink. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- include/uapi/linux/if_link.h | 1 + net/bridge/br_netlink.c | 12 +++++++++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 10a44a735512..5409a461e47e 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -251,6 +251,7 @@ enum { IFLA_BR_MCAST_QUERIER, IFLA_BR_MCAST_HASH_ELASTICITY, IFLA_BR_MCAST_HASH_MAX, + IFLA_BR_MCAST_LAST_MEMBER_CNT, __IFLA_BR_MAX, }; diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index d6b61b0eeada..cf6ccaea8180 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -773,6 +773,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 }, [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 }, [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 }, + [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 }, }; static int br_changelink(struct net_device *brdev, struct nlattr *tb[], @@ -913,6 +914,12 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[], if (err) return err; } + + if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) { + u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]); + + br->multicast_last_member_count = val; + } #endif return 0; @@ -949,6 +956,7 @@ static size_t br_get_size(const struct net_device *brdev) nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */ nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */ nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */ + nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */ #endif 0; } @@ -1014,7 +1022,9 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) || nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY, br->hash_elasticity) || - nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max)) + nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) || + nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT, + br->multicast_last_member_count)) return -EMSGSIZE; #endif -- 2.20.1