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Commit b6cb5ac8 authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller
Browse files

net: bridge: add per-port multicast flood flag 



Add a per-port flag to control the unknown multicast flood, similar to the
unknown unicast flood flag and break a few long lines in the netlink flag
exports.

Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8addd5e7

include/linux/if_bridge.h

+1 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ struct br_ip_list { 
#define BR_PROXYARP		BIT(8)

#define BR_LEARNING_SYNC	BIT(9)

#define BR_PROXYARP_WIFI	BIT(10)

#define BR_MCAST_FLOOD		BIT(11)



#define BR_DEFAULT_AGEING_TIME	(300 * HZ)

include/uapi/linux/if_link.h

+1 −0
Original line number Diff line number Diff line
@@ -318,6 +318,7 @@ enum { 
	IFLA_BRPORT_FLUSH,

	IFLA_BRPORT_MULTICAST_ROUTER,

	IFLA_BRPORT_PAD,

	IFLA_BRPORT_MCAST_FLOOD,

	__IFLA_BRPORT_MAX

};

#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)

net/bridge/br_forward.c

+3 −0
Original line number Diff line number Diff line
@@ -186,6 +186,9 @@ void br_flood(struct net_bridge *br, struct sk_buff *skb, 
		/* Do not flood unicast traffic to ports that turn it off */

		if (pkt_type == BR_PKT_UNICAST && !(p->flags & BR_FLOOD))

			continue;

		if (pkt_type == BR_PKT_MULTICAST &&

		    !(p->flags & BR_MCAST_FLOOD))

			continue;



		/* Do not flood to ports that enable proxy ARP */

		if (p->flags & BR_PROXYARP)

net/bridge/br_if.c

+1 −1
Original line number Diff line number Diff line
@@ -362,7 +362,7 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br, 
	p->path_cost = port_cost(dev);

	p->priority = 0x8000 >> BR_PORT_BITS;

	p->port_no = index;

	p->flags = BR_LEARNING | BR_FLOOD;

	p->flags = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD;

	br_init_port(p);

	br_set_state(p, BR_STATE_DISABLED);

	br_stp_port_timer_init(p);

net/bridge/br_netlink.c

+9 −3
Original line number Diff line number Diff line
@@ -169,10 +169,15 @@ static int br_port_fill_attrs(struct sk_buff *skb, 
	    nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||

	    nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||

	    nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||

	    nla_put_u8(skb, IFLA_BRPORT_PROTECT, !!(p->flags & BR_ROOT_BLOCK)) ||

	    nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||

	    nla_put_u8(skb, IFLA_BRPORT_PROTECT,

		       !!(p->flags & BR_ROOT_BLOCK)) ||

	    nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE,

		       !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||

	    nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||

	    nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, !!(p->flags & BR_FLOOD)) ||

	    nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD,

		       !!(p->flags & BR_FLOOD)) ||

	    nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD,

		       !!(p->flags & BR_MCAST_FLOOD)) ||

	    nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||

	    nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,

		       !!(p->flags & BR_PROXYARP_WIFI)) ||
@@ -630,6 +635,7 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[]) 
	br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);

	br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);

	br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);

	br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);

	br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);

	br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);