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authorLi RongQing <roy.qing.li@gmail.com>2014-07-10 18:02:46 +0800
committerDavid S. Miller <davem@davemloft.net>2014-07-10 16:56:33 -0700
commitb6428817190c5444294e0cc45bd571bfafbbb537 (patch)
treed9b2f936aed56508f05a784a5e5ba17d75822b56
parentff32045e7a1ec9eb35dbf057374b1bc5bf99bc1f (diff)
ipv6: fix the check when handle RA
d9333196572(ipv6: Allow accepting RA from local IP addresses.) made the wrong check, whether or not to accept RA with source-addr found on local machine, when accept_ra_from_local is 0. Fixes: d9333196572(ipv6: Allow accepting RA from local IP addresses.) Cc: Ben Greear <greearb@candelatech.com> Cc: Hannes Frederic Sowa <hannes@redhat.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv6/ndisc.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index a845e3d2057e..b7ece278dd49 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1151,9 +1151,9 @@ static void ndisc_router_discovery(struct sk_buff *skb)
/* Do not accept RA with source-addr found on local machine unless
* accept_ra_from_local is set to true.
*/
- if (!(in6_dev->cnf.accept_ra_from_local ||
- ipv6_chk_addr(dev_net(in6_dev->dev), &ipv6_hdr(skb)->saddr,
- NULL, 0))) {
+ if (!in6_dev->cnf.accept_ra_from_local &&
+ ipv6_chk_addr(dev_net(in6_dev->dev), &ipv6_hdr(skb)->saddr,
+ NULL, 0)) {
ND_PRINTK(2, info,
"RA from local address detected on dev: %s: default router ignored\n",
skb->dev->name);
@@ -1294,9 +1294,9 @@ skip_linkparms:
}
#ifdef CONFIG_IPV6_ROUTE_INFO
- if (!(in6_dev->cnf.accept_ra_from_local ||
- ipv6_chk_addr(dev_net(in6_dev->dev), &ipv6_hdr(skb)->saddr,
- NULL, 0))) {
+ if (!in6_dev->cnf.accept_ra_from_local &&
+ ipv6_chk_addr(dev_net(in6_dev->dev), &ipv6_hdr(skb)->saddr,
+ NULL, 0)) {
ND_PRINTK(2, info,
"RA from local address detected on dev: %s: router info ignored.\n",
skb->dev->name);