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authorJens Rosenboom <me@jayr.de>2009-09-10 06:25:11 (GMT)
committerDavid S. Miller <davem@davemloft.net>2009-09-17 00:10:38 (GMT)
commit3933fc952a5a5af4cf23fca94e20203251c9d825 (patch)
tree512d4c2386a0bff8fe7b2fa92dbac77617555990 /net/ipv6
parentb9f602533e2f5c32a09a3a75904e5373cb6e6377 (diff)
downloadlinux-3933fc952a5a5af4cf23fca94e20203251c9d825.tar.xz
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/ipv6')
-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 9ccfef3..77aecbe 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);