netdev - [PATCH] ipv6: Report TCP timetstamp info in cacheinfo just like ipv4 does.

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Message-Id: <20111229.152307.2117046467310069170.davem@davemloft.net>
Date:	Thu, 29 Dec 2011 15:23:07 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	netdev@...r.kernel.org
Subject: [PATCH] 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@...emloft.net>
---
 net/ipv6/route.c |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0940729..30de9e7 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;
 
-- 
1.7.7.4

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