IPVS: Add sysctl_snat_reroute()

In preparation for not including sysctl_snat_reroute in
struct netns_ipvs when CONFIG_SYCTL is not defined.

Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 299c7f3..1d8a2a2 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -599,6 +599,20 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
        return NF_DROP;
 }
 
+#ifdef CONFIG_SYSCTL
+
+static int sysctl_snat_reroute(struct sk_buff *skb)
+{
+       struct netns_ipvs *ipvs = net_ipvs(skb_net(skb));
+       return ipvs->sysctl_snat_reroute;
+}
+
+#else
+
+static int sysctl_snat_reroute(struct sk_buff *skb) { return 0; }
+
+#endif
+
 __sum16 ip_vs_checksum_complete(struct sk_buff *skb, int offset)
 {
        return csum_fold(skb_checksum(skb, offset, skb->len - offset, 0));
@@ -633,15 +647,13 @@ static inline int ip_vs_gather_frags_v6(struct sk_buff *skb, u_int32_t user)
 
 static int ip_vs_route_me_harder(int af, struct sk_buff *skb)
 {
-       struct netns_ipvs *ipvs = net_ipvs(skb_net(skb));
-
 #ifdef CONFIG_IP_VS_IPV6
        if (af == AF_INET6) {
-               if (ipvs->sysctl_snat_reroute && ip6_route_me_harder(skb) != 0)
+               if (sysctl_snat_reroute(skb) && ip6_route_me_harder(skb) != 0)
                        return 1;
        } else
 #endif
-               if ((ipvs->sysctl_snat_reroute ||
+               if ((sysctl_snat_reroute(skb) ||
                     skb_rtable(skb)->rt_flags & RTCF_LOCAL) &&
                    ip_route_me_harder(skb, RTN_LOCAL) != 0)
                        return 1;