diff options
| author | Francesco Ruggeri <fruggeri@arista.com> | 2019-03-02 02:31:03 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-03-04 08:05:10 +0300 |
| commit | 9036b2fe092a107856edd1a3bad48b83f2b45000 (patch) | |
| tree | b9e330a8e765941112abcccfe48d968eca75bd4d /net/ipv6/ip6_output.c | |
| parent | 46d841105d791b0ab51a1a7ebf48cb4d5416c957 (diff) | |
| download | linux-9036b2fe092a107856edd1a3bad48b83f2b45000.tar.xz | |
net: ipv6: add socket option IPV6_ROUTER_ALERT_ISOLATE
By default IPv6 socket with IPV6_ROUTER_ALERT socket option set will
receive all IPv6 RA packets from all namespaces.
IPV6_ROUTER_ALERT_ISOLATE socket option restricts packets received by
the socket to be only from the socket's namespace.
Signed-off-by: Maxim Martynov <maxim@arista.com>
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_output.c')
| -rw-r--r-- | net/ipv6/ip6_output.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 5f9fa0302b5a..edbd12067170 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -300,6 +300,12 @@ static int ip6_call_ra_chain(struct sk_buff *skb, int sel) if (sk && ra->sel == sel && (!sk->sk_bound_dev_if || sk->sk_bound_dev_if == skb->dev->ifindex)) { + struct ipv6_pinfo *np = inet6_sk(sk); + + if (np && np->rtalert_isolate && + !net_eq(sock_net(sk), dev_net(skb->dev))) { + continue; + } if (last) { struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC); if (skb2) |