netdev - [PATCH] ipvs: Reject ipv6 link-local addresses for destinations

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Message-ID: <alpine.LNX.2.00.0809051638480.18192@titan.stealer.net>
Date:	Fri, 5 Sep 2008 16:53:49 +0200 (CEST)
From:	Sven Wegener <sven.wegener@...aler.net>
To:	horms@...ge.net.au
cc:	netdev@...r.kernel.org, lvs-devel@...r.kernel.org, kaber@...sh.net,
	vbusam@...gle.com, Julius Volz <juliusv@...gle.com>
Subject: [PATCH] ipvs: Reject ipv6 link-local addresses for destinations

We can't use non-local link-local addresses for destinations, without
knowing the interface on which we can reach the address. Reject them for
now.

Signed-off-by: Sven Wegener <sven.wegener@...aler.net>
---
 net/ipv4/ipvs/ip_vs_ctl.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index d2dc05a..e53efe4 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -838,7 +838,8 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
 #ifdef CONFIG_IP_VS_IPV6
 	if (svc->af == AF_INET6) {
 		atype = ipv6_addr_type(&udest->addr.in6);
-		if (!(atype & IPV6_ADDR_UNICAST) &&
+		if ((!(atype & IPV6_ADDR_UNICAST) ||
+			atype & IPV6_ADDR_LINKLOCAL) &&
 			!__ip_vs_addr_is_local_v6(&udest->addr.in6))
 			return -EINVAL;
 	} else
--
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