netdev - [PATCH 2 of 5] IPv6: only update the lifetime of the relevant temporary address

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Message-Id: <5e50b19fbb757f080905.1206305170@pirzuine>
Date:	Sun, 23 Mar 2008 21:46:10 +0100
From:	Benoit Boissinot <benoit.boissinot@...-lyon.org>
To:	netdev@...r.kernel.org
Cc:	pekkas@...core.fi, yoshfuji@...ux-ipv6.org
Subject: [PATCH 2 of 5] IPv6: only update the lifetime of the relevant
	temporary address

IPv6: only update the lifetime of the relevant temporary address

When receiving a prefix information from a routeur, only update the lifetimes
of the temporary address associated with that prefix.
Otherwise if one deprecated prefix is advertized, all your temporary addresses
will become deprecated.

Signed-off-by: Benoit Boissinot <benoit.boissinot@...-lyon.org>

diff -r dd125a7f8696 -r 5e50b19fbb75 net/ipv6/addrconf.c
--- a/net/ipv6/addrconf.c	Sat Mar 22 00:50:21 2008 +0100
+++ b/net/ipv6/addrconf.c	Sat Mar 22 00:41:39 2008 +0100
@@ -1832,6 +1832,10 @@
 				 * when processing a Prefix Information Option.
 				 */
 				spin_lock(&ift->lock);
+				if (ifp != ift->ifpub) {
+					spin_unlock(&ift->lock);
+					continue;
+				}
 				flags = ift->flags;
 				if (ift->valid_lft > valid_lft &&
 				    ift->valid_lft - valid_lft > (jiffies - ift->tstamp) / HZ)
--
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