netdev - [PATCH] [SCTP]: Do not enable peer IPv6 address support on PF

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Date:	Fri,  9 May 2008 15:09:54 -0400
From:	Vlad Yasevich <vladislav.yasevich@...com>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, linux-sctp@...r.kernel.org,
	lksctp-developers@...ts.sourceforge.net,
	Wei Yongjun <yjwei@...fujitsu.com>,
	Vlad Yasevich <vladislav.yasevich@...com>
Subject: [PATCH] [SCTP]: Do not enable peer IPv6 address support on PF_INET socket

From: Wei Yongjun <yjwei@...fujitsu.com>

If socket is create by PF_INET type, it can not used IPv6 address to
send/recv DATA, So we can not used IPv6 address even if peer tell us it
support IPv6 address.
This patch fix to only enabled peer IPv6 address support on PF_INET6 socket.

Signed-off-by: Wei Yongjun <yjwei@...fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@...com>
---
 net/sctp/sm_make_chunk.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 81b6064..69a464f 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2418,7 +2418,8 @@ static int sctp_process_param(struct sctp_association *asoc,
 				break;
 
 			case SCTP_PARAM_IPV6_ADDRESS:
-				asoc->peer.ipv6_address = 1;
+				if (PF_INET6 == asoc->base.sk->sk_family)
+					asoc->peer.ipv6_address = 1;
 				break;
 
 			case SCTP_PARAM_HOST_NAME_ADDRESS:
-- 
1.5.3.5

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