From: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Date: Wed, 2 Apr 2008 07:00:58 +0000 (-0700)
Subject: IPv6: only update the lifetime of the relevant temporary address
X-Git-Tag: firefly_0821_release~21773^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c6fbfac2e61c9a8617f64b93e8c990b8d864bce5;p=firefly-linux-kernel-4.4.55.git

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@ens-lyon.org>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 101e0e70ba27..e11f10eceffc 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1831,6 +1831,9 @@ ok:
 				 * lifetimes of an existing temporary address
 				 * when processing a Prefix Information Option.
 				 */
+				if (ifp != ift->ifpub)
+					continue;
+
 				spin_lock(&ift->lock);
 				flags = ift->flags;
 				if (ift->valid_lft > valid_lft &&