IPVS: Activate IPv6 Netfilter hooks

Register the previously defined or adapted netfilter hook functions for
IPv6 as PF_INET6 hooks.

Signed-off-by: Julius Volz <juliusv@google.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c
index 5a7a817..7d3de9d 100644 (file)
--- a/net/ipv4/ipvs/ip_vs_core.c
+++ b/net/ipv4/ipvs/ip_vs_core.c
@@ -1413,6 +1413,43 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = {
                .hooknum        = NF_INET_POST_ROUTING,
                .priority       = NF_IP_PRI_NAT_SRC-1,
        },
+#ifdef CONFIG_IP_VS_IPV6
+       /* After packet filtering, forward packet through VS/DR, VS/TUN,
+        * or VS/NAT(change destination), so that filtering rules can be
+        * applied to IPVS. */
+       {
+               .hook           = ip_vs_in,
+               .owner          = THIS_MODULE,
+               .pf             = PF_INET6,
+               .hooknum        = NF_INET_LOCAL_IN,
+               .priority       = 100,
+       },
+       /* After packet filtering, change source only for VS/NAT */
+       {
+               .hook           = ip_vs_out,
+               .owner          = THIS_MODULE,
+               .pf             = PF_INET6,
+               .hooknum        = NF_INET_FORWARD,
+               .priority       = 100,
+       },
+       /* After packet filtering (but before ip_vs_out_icmp), catch icmp
+        * destined for 0.0.0.0/0, which is for incoming IPVS connections */
+       {
+               .hook           = ip_vs_forward_icmp_v6,
+               .owner          = THIS_MODULE,
+               .pf             = PF_INET6,
+               .hooknum        = NF_INET_FORWARD,
+               .priority       = 99,
+       },
+       /* Before the netfilter connection tracking, exit from POST_ROUTING */
+       {
+               .hook           = ip_vs_post_routing,
+               .owner          = THIS_MODULE,
+               .pf             = PF_INET6,
+               .hooknum        = NF_INET_POST_ROUTING,
+               .priority       = NF_IP6_PRI_NAT_SRC-1,
+       },
+#endif
 };