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-rw-r--r--target/linux/generic/patches-3.18/645-bridge_multicast_to_unicast.patch35
-rw-r--r--target/linux/generic/patches-4.1/645-bridge_multicast_to_unicast.patch11
2 files changed, 28 insertions, 18 deletions
diff --git a/target/linux/generic/patches-3.18/645-bridge_multicast_to_unicast.patch b/target/linux/generic/patches-3.18/645-bridge_multicast_to_unicast.patch
index 1e070d9d9c..a40abb5c68 100644
--- a/target/linux/generic/patches-3.18/645-bridge_multicast_to_unicast.patch
+++ b/target/linux/generic/patches-3.18/645-bridge_multicast_to_unicast.patch
@@ -133,7 +133,7 @@
if (err)
break;
}
-@@ -1407,7 +1433,8 @@ br_multicast_leave_group(struct net_brid
+@@ -1406,7 +1432,8 @@ br_multicast_leave_group(struct net_brid
struct net_bridge_port *port,
struct br_ip *group,
struct bridge_mcast_other_query *other_query,
@@ -143,7 +143,7 @@
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
-@@ -1457,7 +1484,7 @@ br_multicast_leave_group(struct net_brid
+@@ -1456,7 +1483,7 @@ br_multicast_leave_group(struct net_brid
for (pp = &mp->ports;
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
@@ -152,7 +152,7 @@
continue;
rcu_assign_pointer(*pp, p->next);
-@@ -1491,7 +1518,7 @@ br_multicast_leave_group(struct net_brid
+@@ -1490,7 +1517,7 @@ br_multicast_leave_group(struct net_brid
for (p = mlock_dereference(mp->ports, br);
p != NULL;
p = mlock_dereference(p->next, br)) {
@@ -161,7 +161,7 @@
continue;
if (!hlist_unhashed(&p->mglist) &&
-@@ -1509,8 +1536,8 @@ out:
+@@ -1508,8 +1535,8 @@ out:
static void br_ip4_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
@@ -172,7 +172,7 @@
{
struct br_ip br_group;
struct bridge_mcast_own_query *own_query;
-@@ -1525,14 +1552,14 @@ static void br_ip4_multicast_leave_group
+@@ -1524,14 +1551,14 @@ static void br_ip4_multicast_leave_group
br_group.vid = vid;
br_multicast_leave_group(br, port, &br_group, &br->ip4_other_query,
@@ -189,7 +189,7 @@
{
struct br_ip br_group;
struct bridge_mcast_own_query *own_query;
-@@ -1547,7 +1574,7 @@ static void br_ip6_multicast_leave_group
+@@ -1546,7 +1573,7 @@ static void br_ip6_multicast_leave_group
br_group.vid = vid;
br_multicast_leave_group(br, port, &br_group, &br->ip6_other_query,
@@ -198,7 +198,7 @@
}
#endif
-@@ -1556,6 +1583,7 @@ static int br_multicast_ipv4_rcv(struct
+@@ -1555,6 +1582,7 @@ static int br_multicast_ipv4_rcv(struct
struct sk_buff *skb,
u16 vid)
{
@@ -206,7 +206,7 @@
struct sk_buff *skb2 = skb;
const struct iphdr *iph;
struct igmphdr *ih;
-@@ -1629,7 +1657,8 @@ static int br_multicast_ipv4_rcv(struct
+@@ -1628,7 +1656,8 @@ 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;
@@ -216,7 +216,7 @@
break;
case IGMPV3_HOST_MEMBERSHIP_REPORT:
err = br_ip4_multicast_igmp3_report(br, port, skb2, vid);
-@@ -1638,7 +1667,8 @@ static int br_multicast_ipv4_rcv(struct
+@@ -1637,7 +1666,8 @@ static int br_multicast_ipv4_rcv(struct
err = br_ip4_multicast_query(br, port, skb2, vid);
break;
case IGMP_HOST_LEAVE_MESSAGE:
@@ -226,7 +226,7 @@
break;
}
-@@ -1656,6 +1686,7 @@ static int br_multicast_ipv6_rcv(struct
+@@ -1655,6 +1685,7 @@ static int br_multicast_ipv6_rcv(struct
struct sk_buff *skb,
u16 vid)
{
@@ -234,7 +234,7 @@
struct sk_buff *skb2;
const struct ipv6hdr *ip6h;
u8 icmp6_type;
-@@ -1765,7 +1796,9 @@ static int br_multicast_ipv6_rcv(struct
+@@ -1764,7 +1795,9 @@ static int br_multicast_ipv6_rcv(struct
}
mld = (struct mld_msg *)skb_transport_header(skb2);
BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
@@ -245,7 +245,7 @@
break;
}
case ICMPV6_MLD2_REPORT:
-@@ -1782,7 +1815,8 @@ static int br_multicast_ipv6_rcv(struct
+@@ -1781,7 +1814,8 @@ static int br_multicast_ipv6_rcv(struct
goto out;
}
mld = (struct mld_msg *)skb_transport_header(skb2);
@@ -298,7 +298,7 @@
rcu_assign_pointer(*pp, p);
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
-@@ -168,6 +168,29 @@ out:
+@@ -168,6 +168,34 @@ out:
return p;
}
@@ -309,10 +309,15 @@
+ struct sk_buff *skb))
+{
+ struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;
++ const unsigned char *src = eth_hdr(skb)->h_source;
+
+ if (!should_deliver(p, skb))
+ return prev;
+
++ /* Even with hairpin, no soliloquies - prevent breaking IPv6 DAD */
++ if (skb->dev == p->dev && ether_addr_equal(src, addr))
++ return prev;
++
+ skb = skb_copy(skb, GFP_ATOMIC);
+ if (!skb) {
+ dev->stats.tx_dropped++;
@@ -328,7 +333,7 @@
/* called under bridge lock */
static void br_flood(struct net_bridge *br, struct sk_buff *skb,
struct sk_buff *skb0,
-@@ -232,6 +255,7 @@ static void br_multicast_flood(struct ne
+@@ -232,6 +260,7 @@ static void br_multicast_flood(struct ne
struct net_bridge_port *prev = NULL;
struct net_bridge_port_group *p;
struct hlist_node *rp;
@@ -336,7 +341,7 @@
rp = rcu_dereference(hlist_first_rcu(&br->router_list));
p = mdst ? rcu_dereference(mdst->ports) : NULL;
-@@ -242,10 +266,19 @@ static void br_multicast_flood(struct ne
+@@ -242,10 +271,19 @@ static void br_multicast_flood(struct ne
rport = rp ? hlist_entry(rp, struct net_bridge_port, rlist) :
NULL;
diff --git a/target/linux/generic/patches-4.1/645-bridge_multicast_to_unicast.patch b/target/linux/generic/patches-4.1/645-bridge_multicast_to_unicast.patch
index 6915599c6c..bbd8e25447 100644
--- a/target/linux/generic/patches-4.1/645-bridge_multicast_to_unicast.patch
+++ b/target/linux/generic/patches-4.1/645-bridge_multicast_to_unicast.patch
@@ -305,7 +305,7 @@
rcu_assign_pointer(*pp, p);
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
-@@ -169,6 +169,29 @@ out:
+@@ -169,6 +169,34 @@ out:
return p;
}
@@ -316,10 +316,15 @@
+ struct sk_buff *skb))
+{
+ struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;
++ const unsigned char *src = eth_hdr(skb)->h_source;
+
+ if (!should_deliver(p, skb))
+ return prev;
+
++ /* Even with hairpin, no soliloquies - prevent breaking IPv6 DAD */
++ if (skb->dev == p->dev && ether_addr_equal(src, addr))
++ return prev;
++
+ skb = skb_copy(skb, GFP_ATOMIC);
+ if (!skb) {
+ dev->stats.tx_dropped++;
@@ -335,7 +340,7 @@
/* called under bridge lock */
static void br_flood(struct net_bridge *br, struct sk_buff *skb,
struct sk_buff *skb0,
-@@ -241,6 +264,7 @@ static void br_multicast_flood(struct ne
+@@ -241,6 +269,7 @@ static void br_multicast_flood(struct ne
struct net_bridge_port *prev = NULL;
struct net_bridge_port_group *p;
struct hlist_node *rp;
@@ -343,7 +348,7 @@
rp = rcu_dereference(hlist_first_rcu(&br->router_list));
p = mdst ? rcu_dereference(mdst->ports) : NULL;
-@@ -251,10 +275,19 @@ static void br_multicast_flood(struct ne
+@@ -251,10 +280,19 @@ static void br_multicast_flood(struct ne
rport = rp ? hlist_entry(rp, struct net_bridge_port, rlist) :
NULL;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 00:04:43 +0000