Commit 3933fc95 authored Sep 10, 2009 by Jens Rosenboom Committed by David S. Miller Sep 16, 2009

ipv6: Ignore route option with ROUTER_PREF_INVALID



RFC4191 says that "If the Reserved (10) value is received, the Route
Information Option MUST be ignored.", so this patch makes us conform
to the RFC. This is different to the usage of the Default Router
Preference, where an invalid value must indeed be treated as
PREF_MEDIUM.

Signed-off-by: Jens Rosenboom <me@jayr.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b9f60253

net/ipv6/route.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -481,7 +481,7 @@ int rt6_route_rcv(struct net_device dev, u8 opt, int len,

		pref = rinfo->route_pref;
		if (pref == ICMPV6_ROUTER_PREF_INVALID)
		pref = ICMPV6_ROUTER_PREF_MEDIUM;
		return -EINVAL;

		lifetime = addrconf_timeout_fixup(ntohl(rinfo->lifetime), HZ);