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[IPV6]: Check interface bindings on IPv6 raw socket reception

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Take account of whether a socket is bound to a particular device when
selecting an IPv6 raw socket to receive a packet. Also perform this
check when receiving IPv6 packets with router alert options.

Signed-off-by: Andrew McDonald <andrew@mcdonald.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew McDonald 2005-08-09 19:44:42 -07:00 • committed by David S. Miller
parent 7af4cc3fa1
commit 0bd1b59b15
4 changed files with 15 additions and 6 deletions
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4
net/ipv6/ip6_output.c
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@ -277,7 +277,9 @@ static int ip6_call_ra_chain(struct sk_buff *skb, int sel)
read_lock(&ip6_ra_lock);
for (ra = ip6_ra_chain; ra; ra = ra->next) {
struct sock *sk = ra->sk;
if (sk && ra->sel == sel) {
if (sk && ra->sel == sel &&
(!sk->sk_bound_dev_if ||
sk->sk_bound_dev_if == skb->dev->ifindex)) {
if (last) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (skb2)