From ad5bf1937d2bb16bd0c80e08fce5738597ff23e3 Mon Sep 17 00:00:00 2001
From: Yang Hongyang <yanghy@cn.fujitsu.com>
Date: Tue, 16 Dec 2008 02:06:23 -0800
Subject: [PATCH] --- yaml --- r: 122731 b: refs/heads/master c:
 b24a2516d10751d7ed5afb58420df25370c9dffb h: refs/heads/master i:   122729:
 3ae7013ca8b478968c372c65201617a1f8741da0   122727:
 0b89414cdfb83f9a09e1f161ba1bdb6c17b180c1 v: v3

---
 [refs]                         |  2 +-
 trunk/include/linux/ipv6.h     |  1 +
 trunk/net/ipv6/ipv6_sockglue.c | 22 ++++++++++++++++++++++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 35ccf3c37dc2..a931e037be57 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bc02ff95fe4ebd3e5ee7455c0aa6f76ebe39ebca
+refs/heads/master: b24a2516d10751d7ed5afb58420df25370c9dffb
diff --git a/trunk/include/linux/ipv6.h b/trunk/include/linux/ipv6.h
index 641e026eee8f..0b816cae533e 100644
--- a/trunk/include/linux/ipv6.h
+++ b/trunk/include/linux/ipv6.h
@@ -278,6 +278,7 @@ struct ipv6_pinfo {
 	struct in6_addr 	saddr;
 	struct in6_addr 	rcv_saddr;
 	struct in6_addr		daddr;
+	struct in6_pktinfo	sticky_pktinfo;
 	struct in6_addr		*daddr_cache;
 #ifdef CONFIG_IPV6_SUBTREES
 	struct in6_addr		*saddr_cache;
diff --git a/trunk/net/ipv6/ipv6_sockglue.c b/trunk/net/ipv6/ipv6_sockglue.c
index 2aa294be0c79..0feaee38bc37 100644
--- a/trunk/net/ipv6/ipv6_sockglue.c
+++ b/trunk/net/ipv6/ipv6_sockglue.c
@@ -395,6 +395,28 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 		break;
 	}
 
+	case IPV6_PKTINFO:
+	{
+		struct in6_pktinfo pkt;
+
+		if (optlen == 0)
+			goto e_inval;
+		else if (optlen < sizeof(struct in6_pktinfo) || optval == NULL)
+			goto e_inval;
+
+		if (copy_from_user(&pkt, optval, optlen)) {
+				retv = -EFAULT;
+				break;
+		}
+		if (sk->sk_bound_dev_if && pkt.ipi6_ifindex != sk->sk_bound_dev_if)
+			goto e_inval;
+
+		np->sticky_pktinfo.ipi6_ifindex = pkt.ipi6_ifindex;
+		ipv6_addr_copy(&np->sticky_pktinfo.ipi6_addr, &pkt.ipi6_addr);
+		retv = 0;
+		break;
+	}
+
 	case IPV6_2292PKTOPTIONS:
 	{
 		struct ipv6_txoptions *opt = NULL;