From: Flavio Leitner <fleitner@redhat.com>
Date: Sat, 25 Aug 2007 05:16:39 +0000 (-0700)
Subject: [NET]: Fix IP_ADD/DROP_MEMBERSHIP to handle only connectionless
X-Git-Tag: v3.12-rc1~27042^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a96fb49be3dd2031f722bf32af6ed7db965b60f7;p=kernel%2Fkernel-generic.git

[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>
---

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 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 	{
 		struct ip_mreqn mreq;
 
+		err = -EPROTO;
+		if (inet_sk(sk)->is_icsk)
+			break;
+
 		if (optlen < sizeof(struct ip_mreq))
 			goto e_inval;
 		err = -EFAULT;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 761a910..6b038aa 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -554,6 +554,10 @@ done:
 	{
 		struct ipv6_mreq mreq;
 
+		retv = -EPROTO;
+		if (inet_sk(sk)->is_icsk)
+			break;
+
 		retv = -EFAULT;
 		if (copy_from_user(&mreq, optval, sizeof(struct ipv6_mreq)))
 			break;