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authorMadhu Challa <challa@noironetworks.com>2015-02-25 20:58:35 +0300
committerDavid S. Miller <davem@davemloft.net>2015-02-28 00:25:25 +0300
commit93a714d6b53d87872e552dbb273544bdeaaf6e12 (patch)
tree3cc79521cb6dbcd600384507329ecef93ae618ab /include/net/netns
parent46a4dee074b58c4256dbf6c2dbf199c372f85b04 (diff)
downloadlinux-93a714d6b53d87872e552dbb273544bdeaaf6e12.tar.xz
multicast: Extend ip address command to enable multicast group join/leave on
Joining multicast group on ethernet level via "ip maddr" command would not work if we have an Ethernet switch that does igmp snooping since the switch would not replicate multicast packets on ports that did not have IGMP reports for the multicast addresses. Linux vxlan interfaces created via "ip link add vxlan" have the group option that enables then to do the required join. By extending ip address command with option "autojoin" we can get similar functionality for openvswitch vxlan interfaces as well as other tunneling mechanisms that need to receive multicast traffic. The kernel code is structured similar to how the vxlan driver does a group join / leave. example: ip address add 224.1.1.10/24 dev eth5 autojoin ip address del 224.1.1.10/24 dev eth5 Signed-off-by: Madhu Challa <challa@noironetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/netns')
-rw-r--r--include/net/netns/ipv4.h1
-rw-r--r--include/net/netns/ipv6.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index dbe225478adb..1b26c6c3fd7c 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -49,6 +49,7 @@ struct netns_ipv4 {
struct sock *fibnl;
struct sock * __percpu *icmp_sk;
+ struct sock *mc_autojoin_sk;
struct inet_peer_base *peers;
struct tcpm_hash_bucket *tcp_metrics_hash;
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 69ae41f2098c..ca0db12cd089 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -67,6 +67,7 @@ struct netns_ipv6 {
struct sock *ndisc_sk;
struct sock *tcp_sk;
struct sock *igmp_sk;
+ struct sock *mc_autojoin_sk;
#ifdef CONFIG_IPV6_MROUTE
#ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
struct mr6_table *mrt6;