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Commit 5d6ae479 authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller
Browse files

bridge: netlink: add support for port's multicast_router attribute 



Add IFLA_BRPORT_MULTICAST_ROUTER to allow setting/getting port's
multicast_router via netlink.

Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9b0c6e4d

include/uapi/linux/if_link.h

+1 −0
Original line number Diff line number Diff line
@@ -304,6 +304,7 @@ enum { 
	IFLA_BRPORT_FORWARD_DELAY_TIMER,

	IFLA_BRPORT_HOLD_TIMER,

	IFLA_BRPORT_FLUSH,

	IFLA_BRPORT_MULTICAST_ROUTER,

	__IFLA_BRPORT_MAX

};

#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)

net/bridge/br_netlink.c

+19 −0
Original line number Diff line number Diff line
@@ -138,6 +138,9 @@ static inline size_t br_port_info_size(void) 
		+ nla_total_size(sizeof(u64))	/* IFLA_BRPORT_MESSAGE_AGE_TIMER */

		+ nla_total_size(sizeof(u64))	/* IFLA_BRPORT_FORWARD_DELAY_TIMER */

		+ nla_total_size(sizeof(u64))	/* IFLA_BRPORT_HOLD_TIMER */

#ifdef CONFIG_BRIDGE_IGMP_SNOOPING

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

#endif

		+ 0;

}
@@ -196,6 +199,12 @@ static int br_port_fill_attrs(struct sk_buff *skb, 
	if (nla_put_u64(skb, IFLA_BRPORT_HOLD_TIMER, timerval))

		return -EMSGSIZE;



#ifdef CONFIG_BRIDGE_IGMP_SNOOPING

	if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,

		       p->multicast_router))

		return -EMSGSIZE;

#endif



	return 0;

}
@@ -560,6 +569,7 @@ static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = { 
	[IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },

	[IFLA_BRPORT_PROXYARP]	= { .type = NLA_U8 },

	[IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },

	[IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },

};



/* Change the state of the port and notify spanning tree */
@@ -634,6 +644,15 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[]) 
	if (tb[IFLA_BRPORT_FLUSH])

		br_fdb_delete_by_port(p->br, p, 0, 0);



#ifdef CONFIG_BRIDGE_IGMP_SNOOPING

	if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {

		u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);



		err = br_multicast_set_port_router(p, mcast_router);

		if (err)

			return err;

	}

#endif

	br_port_flags_change(p, old_flags ^ p->flags);

	return 0;

}