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authorJulian Anastasov <ja@ssi.bg>2010-10-17 16:35:46 +0300
committerSimon Horman <horms@verge.net.au>2010-10-21 10:51:43 +0200
commitf5a41847acc535e2e2018e397b1876ba7577d9d9 (patch)
tree319e371c22e2b9f82bafa4c23b364fdfd64a916b /net
parent1ca5bb5450aa2401fa272efeb741ebb260d0fbb0 (diff)
downloadop-kernel-dev-f5a41847acc535e2e2018e397b1876ba7577d9d9.zip
op-kernel-dev-f5a41847acc535e2e2018e397b1876ba7577d9d9.tar.gz
ipvs: move ip_route_me_harder for ICMP
Currently, ip_route_me_harder after ip_vs_out_icmp is called even if packet is not related to IPVS connection. Move it into handle_response_icmp. Also, force rerouting if sending to local client because IPv4 stack uses addresses from the route. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/ipvs/ip_vs_core.c41
1 files changed, 21 insertions, 20 deletions
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index f7f5283..c4f091d 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -702,6 +702,17 @@ static int handle_response_icmp(int af, struct sk_buff *skb,
#endif
ip_vs_nat_icmp(skb, pp, cp, 1);
+#ifdef CONFIG_IP_VS_IPV6
+ if (af == AF_INET6) {
+ if (sysctl_ip_vs_snat_reroute && ip6_route_me_harder(skb) != 0)
+ goto out;
+ } else
+#endif
+ if ((sysctl_ip_vs_snat_reroute ||
+ skb_rtable(skb)->rt_flags & RTCF_LOCAL) &&
+ ip_route_me_harder(skb, RTN_LOCAL) != 0)
+ goto out;
+
/* do the statistics and put it back */
ip_vs_out_stats(cp, skb);
@@ -940,16 +951,16 @@ handle_response(int af, struct sk_buff *skb, struct ip_vs_protocol *pp,
* if it came from this machine itself. So re-compute
* the routing information.
*/
- if (sysctl_ip_vs_snat_reroute) {
#ifdef CONFIG_IP_VS_IPV6
- if (af == AF_INET6) {
- if (ip6_route_me_harder(skb) != 0)
- goto drop;
- } else
+ if (af == AF_INET6) {
+ if (sysctl_ip_vs_snat_reroute && ip6_route_me_harder(skb) != 0)
+ goto drop;
+ } else
#endif
- if (ip_route_me_harder(skb, RTN_LOCAL) != 0)
- goto drop;
- }
+ if ((sysctl_ip_vs_snat_reroute ||
+ skb_rtable(skb)->rt_flags & RTCF_LOCAL) &&
+ ip_route_me_harder(skb, RTN_LOCAL) != 0)
+ goto drop;
IP_VS_DBG_PKT(10, pp, skb, 0, "After SNAT");
@@ -1001,13 +1012,8 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb,
int verdict = ip_vs_out_icmp_v6(skb, &related,
hooknum);
- if (related) {
- if (sysctl_ip_vs_snat_reroute &&
- NF_ACCEPT == verdict &&
- ip6_route_me_harder(skb))
- verdict = NF_DROP;
+ if (related)
return verdict;
- }
ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
}
} else
@@ -1016,13 +1022,8 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb,
int related;
int verdict = ip_vs_out_icmp(skb, &related, hooknum);
- if (related) {
- if (sysctl_ip_vs_snat_reroute &&
- NF_ACCEPT == verdict &&
- ip_route_me_harder(skb, RTN_LOCAL))
- verdict = NF_DROP;
+ if (related)
return verdict;
- }
ip_vs_fill_iphdr(af, skb_network_header(skb), &iph);
}
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