kernel: backport upstream bridge multicast snooping fixes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 41817

1 files changed, 39 insertions, 37 deletions

diff --git a/target/linux/generic/patches-3.10/645-bridge_multicast_to_unicast.patch b/target/linux/generic/patches-3.10/645-bridge_multicast_to_unicast.patch
index f5b781bb17..9ee6b01df0 100644
--- a/target/linux/generic/patches-3.10/645-bridge_multicast_to_unicast.patch
+++ b/target/linux/generic/patches-3.10/645-bridge_multicast_to_unicast.patch
@@ -1,6 +1,6 @@
 --- a/net/bridge/br_multicast.c
 +++ b/net/bridge/br_multicast.c
-@@ -630,7 +630,8 @@ struct net_bridge_port_group *br_multica
+@@ -634,7 +634,8 @@ struct net_bridge_port_group *br_multica
  			struct net_bridge_port *port,
  			struct br_ip *group,
  			struct net_bridge_port_group __rcu *next,
@@ -10,7 +10,7 @@
  {
  	struct net_bridge_port_group *p;
  
-@@ -645,12 +646,33 @@ struct net_bridge_port_group *br_multica
+@@ -649,12 +650,33 @@ struct net_bridge_port_group *br_multica
  	hlist_add_head(&p->mglist, &port->mglist);
  	setup_timer(&p->timer, br_multicast_port_group_expired,
  		    (unsigned long)p);
@@ -45,7 +45,7 @@
  {
  	struct net_bridge_mdb_entry *mp;
  	struct net_bridge_port_group *p;
-@@ -677,13 +699,13 @@ static int br_multicast_add_group(struct
+@@ -681,13 +703,13 @@ static int br_multicast_add_group(struct
  	for (pp = &mp->ports;
  	     (p = mlock_dereference(*pp, br)) != NULL;
  	     pp = &p->next) {
@@ -61,7 +61,7 @@
  	if (unlikely(!p))
  		goto err;
  	rcu_assign_pointer(*pp, p);
-@@ -702,7 +724,7 @@ err:
+@@ -706,7 +728,7 @@ err:
  static int br_ip4_multicast_add_group(struct net_bridge *br,
  				      struct net_bridge_port *port,
  				      __be32 group,
@@ -70,7 +70,7 @@
  {
  	struct br_ip br_group;
  
-@@ -713,14 +735,14 @@ static int br_ip4_multicast_add_group(st
+@@ -717,14 +739,14 @@ static int br_ip4_multicast_add_group(st
  	br_group.proto = htons(ETH_P_IP);
  	br_group.vid = vid;
  
@@ -87,7 +87,7 @@
  {
  	struct br_ip br_group;
  
-@@ -731,7 +753,7 @@ static int br_ip6_multicast_add_group(st
+@@ -735,7 +757,7 @@ static int br_ip6_multicast_add_group(st
  	br_group.proto = htons(ETH_P_IPV6);
  	br_group.vid = vid;
  
@@ -96,7 +96,7 @@
  }
  #endif
  
-@@ -898,6 +920,7 @@ static int br_ip4_multicast_igmp3_report
+@@ -949,6 +971,7 @@ static int br_ip4_multicast_igmp3_report
  					 struct net_bridge_port *port,
  					 struct sk_buff *skb)
  {
@@ -104,7 +104,7 @@
  	struct igmpv3_report *ih;
  	struct igmpv3_grec *grec;
  	int i;
-@@ -943,7 +966,7 @@ static int br_ip4_multicast_igmp3_report
+@@ -994,7 +1017,7 @@ static int br_ip4_multicast_igmp3_report
  			continue;
  		}
  
@@ -113,7 +113,7 @@
  		if (err)
  			break;
  	}
-@@ -956,6 +979,7 @@ static int br_ip6_multicast_mld2_report(
+@@ -1007,6 +1030,7 @@ static int br_ip6_multicast_mld2_report(
  					struct net_bridge_port *port,
  					struct sk_buff *skb)
  {
@@ -121,7 +121,7 @@
  	struct icmp6hdr *icmp6h;
  	struct mld2_grec *grec;
  	int i;
-@@ -1006,7 +1030,7 @@ static int br_ip6_multicast_mld2_report(
+@@ -1057,7 +1081,7 @@ static int br_ip6_multicast_mld2_report(
  		}
  
  		err = br_ip6_multicast_add_group(br, port, &grec->grec_mca,
@@ -130,17 +130,17 @@
  		if (!err)
  			break;
  	}
-@@ -1235,7 +1259,8 @@ out:
- 
- static void br_multicast_leave_group(struct net_bridge *br,
+@@ -1302,7 +1326,8 @@ static void br_multicast_leave_group(str
  				     struct net_bridge_port *port,
--				     struct br_ip *group)
-+				     struct br_ip *group,
+ 				     struct br_ip *group,
+ 				     struct bridge_mcast_querier *querier,
+-				     struct bridge_mcast_query *query)
++				     struct bridge_mcast_query *query,
 +				     const unsigned char *src)
  {
  	struct net_bridge_mdb_htable *mdb;
  	struct net_bridge_mdb_entry *mp;
-@@ -1260,7 +1285,7 @@ static void br_multicast_leave_group(str
+@@ -1352,7 +1377,7 @@ static void br_multicast_leave_group(str
  		for (pp = &mp->ports;
  		     (p = mlock_dereference(*pp, br)) != NULL;
  		     pp = &p->next) {
@@ -149,7 +149,7 @@
  				continue;
  
  			rcu_assign_pointer(*pp, p->next);
-@@ -1294,7 +1319,7 @@ static void br_multicast_leave_group(str
+@@ -1386,7 +1411,7 @@ static void br_multicast_leave_group(str
  	for (p = mlock_dereference(mp->ports, br);
  	     p != NULL;
  	     p = mlock_dereference(p->next, br)) {
@@ -158,7 +158,7 @@
  			continue;
  
  		if (!hlist_unhashed(&p->mglist) &&
-@@ -1313,8 +1338,8 @@ out:
+@@ -1404,8 +1429,8 @@ out:
  
  static void br_ip4_multicast_leave_group(struct net_bridge *br,
  					 struct net_bridge_port *port,
@@ -168,13 +168,14 @@
 +					 const unsigned char *src)
  {
  	struct br_ip br_group;
- 
-@@ -1325,14 +1350,14 @@ static void br_ip4_multicast_leave_group
+ 	struct bridge_mcast_query *query = port ? &port->ip4_query :
+@@ -1418,14 +1443,15 @@ static void br_ip4_multicast_leave_group
  	br_group.proto = htons(ETH_P_IP);
  	br_group.vid = vid;
  
--	br_multicast_leave_group(br, port, &br_group);
-+	br_multicast_leave_group(br, port, &br_group, src);
+-	br_multicast_leave_group(br, port, &br_group, &br->ip4_querier, query);
++	br_multicast_leave_group(br, port, &br_group, &br->ip4_querier, query,
++				 src);
  }
  
  #if IS_ENABLED(CONFIG_IPV6)
@@ -185,17 +186,18 @@
 +					 __u16 vid, const unsigned char *src)
  {
  	struct br_ip br_group;
- 
-@@ -1343,7 +1368,7 @@ static void br_ip6_multicast_leave_group
+ 	struct bridge_mcast_query *query = port ? &port->ip6_query :
+@@ -1439,7 +1465,8 @@ static void br_ip6_multicast_leave_group
  	br_group.proto = htons(ETH_P_IPV6);
  	br_group.vid = vid;
  
--	br_multicast_leave_group(br, port, &br_group);
-+	br_multicast_leave_group(br, port, &br_group, src);
+-	br_multicast_leave_group(br, port, &br_group, &br->ip6_querier, query);
++	br_multicast_leave_group(br, port, &br_group, &br->ip6_querier, query,
++				 src);
  }
  #endif
  
-@@ -1351,6 +1376,7 @@ static int br_multicast_ipv4_rcv(struct
+@@ -1447,6 +1474,7 @@ static int br_multicast_ipv4_rcv(struct 
  				 struct net_bridge_port *port,
  				 struct sk_buff *skb)
  {
@@ -203,7 +205,7 @@
  	struct sk_buff *skb2 = skb;
  	const struct iphdr *iph;
  	struct igmphdr *ih;
-@@ -1426,7 +1452,7 @@ static int br_multicast_ipv4_rcv(struct
+@@ -1522,7 +1550,7 @@ static int br_multicast_ipv4_rcv(struct 
  	case IGMP_HOST_MEMBERSHIP_REPORT:
  	case IGMPV2_HOST_MEMBERSHIP_REPORT:
  		BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
@@ -212,7 +214,7 @@
  		break;
  	case IGMPV3_HOST_MEMBERSHIP_REPORT:
  		err = br_ip4_multicast_igmp3_report(br, port, skb2);
-@@ -1435,7 +1461,7 @@ static int br_multicast_ipv4_rcv(struct
+@@ -1531,7 +1559,7 @@ static int br_multicast_ipv4_rcv(struct 
  		err = br_ip4_multicast_query(br, port, skb2);
  		break;
  	case IGMP_HOST_LEAVE_MESSAGE:
@@ -221,7 +223,7 @@
  		break;
  	}
  
-@@ -1452,6 +1478,7 @@ static int br_multicast_ipv6_rcv(struct
+@@ -1548,6 +1576,7 @@ static int br_multicast_ipv6_rcv(struct 
  				 struct net_bridge_port *port,
  				 struct sk_buff *skb)
  {
@@ -229,7 +231,7 @@
  	struct sk_buff *skb2;
  	const struct ipv6hdr *ip6h;
  	u8 icmp6_type;
-@@ -1557,7 +1584,8 @@ static int br_multicast_ipv6_rcv(struct
+@@ -1659,7 +1688,8 @@ static int br_multicast_ipv6_rcv(struct 
  		}
  		mld = (struct mld_msg *)skb_transport_header(skb2);
  		BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
@@ -239,7 +241,7 @@
  		break;
  	    }
  	case ICMPV6_MLD2_REPORT:
-@@ -1574,7 +1602,7 @@ static int br_multicast_ipv6_rcv(struct
+@@ -1676,7 +1706,7 @@ static int br_multicast_ipv6_rcv(struct 
  			goto out;
  		}
  		mld = (struct mld_msg *)skb_transport_header(skb2);
@@ -250,7 +252,7 @@
  
 --- a/net/bridge/br_private.h
 +++ b/net/bridge/br_private.h
-@@ -101,6 +101,9 @@ struct net_bridge_port_group {
+@@ -115,6 +115,9 @@ struct net_bridge_port_group {
  	struct timer_list		timer;
  	struct br_ip			addr;
  	unsigned char			state;
@@ -260,15 +262,15 @@
  };
  
  struct net_bridge_mdb_entry
-@@ -158,6 +161,7 @@ struct net_bridge_port
+@@ -172,6 +175,7 @@ struct net_bridge_port
  #define BR_MULTICAST_FAST_LEAVE	0x00000008
  #define BR_ADMIN_COST		0x00000010
  #define BR_ISOLATE_MODE		0x00000020
 +#define BR_MULTICAST_TO_UCAST	0x00000040
  
  #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
- 	u32				multicast_startup_queries_sent;
-@@ -469,7 +473,8 @@ extern struct net_bridge_port_group *br_
+ 	struct bridge_mcast_query	ip4_query;
+@@ -489,7 +493,8 @@ extern struct net_bridge_port_group *br_
  				struct net_bridge_port *port,
  				struct br_ip *group,
  				struct net_bridge_port_group *next,
@@ -280,7 +282,7 @@
  extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
 --- a/net/bridge/br_mdb.c
 +++ b/net/bridge/br_mdb.c
-@@ -340,7 +340,7 @@ static int br_mdb_add_group(struct net_b
+@@ -341,7 +341,7 @@ static int br_mdb_add_group(struct net_b
  			break;
  	}