commit a96fb49be3dd2031f722bf32af6ed7db965b60f7
author Flavio Leitner <fleitner@redhat.com> Fri Aug 24 22:16:39 2007 -0700
committer David S. Miller <davem@sunset.davemloft.net> Sun Aug 26 18:35:35 2007 -0700
tree 3c02106c65a3013990007d9bdf2708616bc9ba6e
parent 36d98d3edce12c8f9ffd33f8f5d23ce728380925

[NET]: Fix IP_ADD/DROP_MEMBERSHIP to handle only connectionless

Fix IP[V6]_ADD_MEMBERSHIP and IP[V6]_DROP_MEMBERSHIP to
return -EPROTO for connection oriented sockets.

Signed-off-by: Flavio Leitner <fleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/ip_sockglue.c

diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 4d54457..6b420ae 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -625,6 +625,10 @@
 	{
 		struct ip_mreqn mreq;
 
+		err = -EPROTO;
+		if (inet_sk(sk)->is_icsk)
+			break;
+
 		if (optlen < sizeof(struct ip_mreq))
 			goto e_inval;
 		err = -EFAULT;