microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

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>
This commit is contained in:
Julian Anastasov 2010-10-17 16:35:46 +03:00 коммит произвёл Simon Horman
Родитель 1ca5bb5450
Коммит f5a41847ac
1 изменённых файлов: 21 добавлений и 20 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

41
net/netfilter/ipvs/ip_vs_core.c
Просмотреть файл

@ -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);
}