From: Glenn Wurster <gwurster@scs.carleton.ca>
Date: Mon, 27 Sep 2010 07:04:30 +0000 (+0000)
Subject: IPv6: Create temporary address if none exists.
X-Git-Tag: v2.6.37-rc1~11^2~66
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aed65501e8c072b52c5b4dc807cd938659329673;p=platform%2Fkernel%2Flinux-3.10.git

IPv6: Create temporary address if none exists.

If privacy extentions are enabled, but no current temporary address exists,
then create one when we get a router advertisement.

Signed-off-by: Glenn Wurster <gwurster@scs.carleton.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index ec7a91d..8ed6763 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2021,10 +2021,11 @@ ok:
 					ipv6_ifa_notify(0, ift);
 			}
 
-			if (create && in6_dev->cnf.use_tempaddr > 0) {
+			if ((create || list_empty(&in6_dev->tempaddr_list)) && in6_dev->cnf.use_tempaddr > 0) {
 				/*
 				 * When a new public address is created as described in [ADDRCONF],
-				 * also create a new temporary address.
+				 * also create a new temporary address. Also create a temporary
+				 * address if it's enabled but no temporary address currently exists.
 				 */
 				read_unlock_bh(&in6_dev->lock);
 				ipv6_create_tempaddr(ifp, NULL);