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authorJens Rosenboom <me@jayr.de>2009-09-10 08:25:11 +0200
committerDavid S. Miller <davem@davemloft.net>2009-09-17 02:10:38 +0200
commit3933fc952a5a5af4cf23fca94e20203251c9d825 (patch)
tree512d4c2386a0bff8fe7b2fa92dbac77617555990 /net
parentbonding: make ab_arp select active slaves as other modes (diff)
downloadlinux-3933fc952a5a5af4cf23fca94e20203251c9d825.tar.xz
linux-3933fc952a5a5af4cf23fca94e20203251c9d825.zip
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>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/route.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 9ccfef345560..77aecbe8ff6c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -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);