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Commit 89126327 authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller
Browse files

bridge: netlink: add support for multicast_snooping 



Add IFLA_BR_MCAST_SNOOPING to allow enabling/disabling multicast
snooping via netlink.

Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a9a6bc70

include/uapi/linux/if_link.h

+1 −0
Original line number Diff line number Diff line
@@ -246,6 +246,7 @@ enum { 
	IFLA_BR_GROUP_ADDR,

	IFLA_BR_FDB_FLUSH,

	IFLA_BR_MCAST_ROUTER,

	IFLA_BR_MCAST_SNOOPING,

	__IFLA_BR_MAX,

};

net/bridge/br_netlink.c

+12 −1
Original line number Diff line number Diff line
@@ -768,6 +768,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { 
	[IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,

				 .len  = ETH_ALEN },

	[IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },

	[IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },

};



static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -871,6 +872,14 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[], 
		if (err)

			return err;

	}



	if (data[IFLA_BR_MCAST_SNOOPING]) {

		u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);



		err = br_multicast_toggle(br, mcast_snooping);

		if (err)

			return err;

	}

#endif



	return 0;
@@ -902,6 +911,7 @@ static size_t br_get_size(const struct net_device *brdev) 
	       nla_total_size(ETH_ALEN) +       /* IFLA_BR_GROUP_ADDR */

#ifdef CONFIG_BRIDGE_IGMP_SNOOPING

	       nla_total_size(sizeof(u8)) +     /* IFLA_BR_MCAST_ROUTER */

	       nla_total_size(sizeof(u8)) +     /* IFLA_BR_MCAST_SNOOPING */

#endif

	       0;

}
@@ -960,7 +970,8 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) 
#endif



#ifdef CONFIG_BRIDGE_IGMP_SNOOPING

	if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router))

	if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||

	    nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled))

		return -EMSGSIZE;

#endif