diff options
| -rw-r--r-- | net/ipv4/netfilter/iptable_nat.c | 4 | ||||
| -rw-r--r-- | net/ipv6/netfilter/ip6table_nat.c | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c index 9e0ffaf1d942..a82047282dbb 100644 --- a/net/ipv4/netfilter/iptable_nat.c +++ b/net/ipv4/netfilter/iptable_nat.c @@ -184,7 +184,8 @@ nf_nat_ipv4_out(unsigned int hooknum, if ((ct->tuplehash[dir].tuple.src.u3.ip != ct->tuplehash[!dir].tuple.dst.u3.ip) || - (ct->tuplehash[dir].tuple.src.u.all != + (ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMP && + ct->tuplehash[dir].tuple.src.u.all != ct->tuplehash[!dir].tuple.dst.u.all)) if (nf_xfrm_me_harder(skb, AF_INET) < 0) ret = NF_DROP; @@ -221,6 +222,7 @@ nf_nat_ipv4_local_fn(unsigned int hooknum, } #ifdef CONFIG_XFRM else if (!(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) && + ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMP && ct->tuplehash[dir].tuple.dst.u.all != ct->tuplehash[!dir].tuple.src.u.all) if (nf_xfrm_me_harder(skb, AF_INET) < 0) diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c index e418bd6350a4..d57dab17a182 100644 --- a/net/ipv6/netfilter/ip6table_nat.c +++ b/net/ipv6/netfilter/ip6table_nat.c @@ -186,7 +186,8 @@ nf_nat_ipv6_out(unsigned int hooknum, if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.src.u3, &ct->tuplehash[!dir].tuple.dst.u3) || - (ct->tuplehash[dir].tuple.src.u.all != + (ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMPV6 && + ct->tuplehash[dir].tuple.src.u.all != ct->tuplehash[!dir].tuple.dst.u.all)) if (nf_xfrm_me_harder(skb, AF_INET6) < 0) ret = NF_DROP; @@ -222,6 +223,7 @@ nf_nat_ipv6_local_fn(unsigned int hooknum, } #ifdef CONFIG_XFRM else if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) && + ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMPV6 && ct->tuplehash[dir].tuple.dst.u.all != ct->tuplehash[!dir].tuple.src.u.all) if (nf_xfrm_me_harder(skb, AF_INET6)) |