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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>
hifive-unleashed-5.1
Li RongQing 2014-07-10 18:02:46 +08:00 committed by David S. Miller
parent ff32045e7a
commit b642881719
1 changed files with 6 additions and 6 deletions
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12
net/ipv6/ndisc.c
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@ -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);