From: David S. Miller <davem@davemloft.net>
Date: Thu, 29 Dec 2011 20:22:33 +0000 (-0500)
Subject: ipv6: Report TCP timetstamp info in cacheinfo just like ipv4 does.
X-Git-Tag: v3.3-rc1~182^2~81
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=346f870b8a9aaf0847f7c7cffdbb447bb2f3853e;p=karo-tx-linux.git

ipv6: Report TCP timetstamp info in cacheinfo just like ipv4 does.

I missed this while adding ipv6 support to inet_peer.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0940729d2f91..30de9e74a813 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2360,11 +2360,13 @@ static int rt6_fill_node(struct net *net,
 			 int iif, int type, u32 pid, u32 seq,
 			 int prefix, int nowait, unsigned int flags)
 {
+	const struct inet_peer *peer;
 	struct rtmsg *rtm;
 	struct nlmsghdr *nlh;
 	long expires;
 	u32 table;
 	struct neighbour *n;
+	u32 ts, tsage;
 
 	if (prefix) {	/* user wants prefix routes only */
 		if (!(rt->rt6i_flags & RTF_PREFIX_RT)) {
@@ -2471,7 +2473,14 @@ static int rt6_fill_node(struct net *net,
 	else
 		expires = INT_MAX;
 
-	if (rtnl_put_cacheinfo(skb, &rt->dst, 0, 0, 0,
+	peer = rt->rt6i_peer;
+	ts = tsage = 0;
+	if (peer && peer->tcp_ts_stamp) {
+		ts = peer->tcp_ts;
+		tsage = get_seconds() - peer->tcp_ts_stamp;
+	}
+
+	if (rtnl_put_cacheinfo(skb, &rt->dst, 0, ts, tsage,
 			       expires, rt->dst.error) < 0)
 		goto nla_put_failure;