From: Andreas Herz <[email protected]> RFC 4443 added two new codes values for ICMPv6 type 1:
5 - Source address failed ingress/egress policy 6 - Reject route to destination And RFC 7084 states in L-14 that IPv6 Router MUST send ICMPv6 Destination Unreachable with code 5 for packets forwarded to it that use an address from a prefix that has been invalidated. Codes 5 and 6 are more informative subsets of code 1. Signed-off-by: Andreas Herz <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]> --- include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h | 4 +++- net/ipv6/netfilter/ip6t_REJECT.c | 6 ++++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h b/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h index 205ed62..cd2e940 100644 --- a/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h +++ b/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h @@ -10,7 +10,9 @@ enum ip6t_reject_with { IP6T_ICMP6_ADDR_UNREACH, IP6T_ICMP6_PORT_UNREACH, IP6T_ICMP6_ECHOREPLY, - IP6T_TCP_RESET + IP6T_TCP_RESET, + IP6T_ICMP6_POLICY_FAIL, + IP6T_ICMP6_REJECT_ROUTE }; struct ip6t_reject_info { diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c index 567367a..0ed841a 100644 --- a/net/ipv6/netfilter/ip6t_REJECT.c +++ b/net/ipv6/netfilter/ip6t_REJECT.c @@ -63,6 +63,12 @@ reject_tg6(struct sk_buff *skb, const struct xt_action_param *par) case IP6T_TCP_RESET: nf_send_reset6(net, skb, par->hooknum); break; + case IP6T_ICMP6_POLICY_FAIL: + nf_send_unreach6(net, skb, ICMPV6_POLICY_FAIL, par->hooknum); + break; + case IP6T_ICMP6_REJECT_ROUTE: + nf_send_unreach6(net, skb, ICMPV6_REJECT_ROUTE, par->hooknum); + break; } return NF_DROP; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
