From 203f2e78200c27e42e9f7d063091f950bf5fe4a0 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Thu, 13 Dec 2018 16:01:29 +0100 Subject: netfilter: nat: remove l4proto->unique_tuple fold remaining users (icmp, icmpv6, gre) into nf_nat_l4proto_unique_tuple. The static-save of old incarnation of resolved key in gre and icmp is removed as well, just use the prandom based offset like the others. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/ipv6/netfilter/nf_nat_proto_icmpv6.c | 26 -------------------------- 1 file changed, 26 deletions(-) (limited to 'net/ipv6') diff --git a/net/ipv6/netfilter/nf_nat_proto_icmpv6.c b/net/ipv6/netfilter/nf_nat_proto_icmpv6.c index d9bf42ba44fa..491361b7a721 100644 --- a/net/ipv6/netfilter/nf_nat_proto_icmpv6.c +++ b/net/ipv6/netfilter/nf_nat_proto_icmpv6.c @@ -29,31 +29,6 @@ icmpv6_in_range(const struct nf_conntrack_tuple *tuple, ntohs(tuple->src.u.icmp.id) <= ntohs(max->icmp.id); } -static void -icmpv6_unique_tuple(const struct nf_nat_l3proto *l3proto, - struct nf_conntrack_tuple *tuple, - const struct nf_nat_range2 *range, - enum nf_nat_manip_type maniptype, - const struct nf_conn *ct) -{ - static u16 id; - unsigned int range_size; - unsigned int i; - - range_size = ntohs(range->max_proto.icmp.id) - - ntohs(range->min_proto.icmp.id) + 1; - - if (!(range->flags & NF_NAT_RANGE_PROTO_SPECIFIED)) - range_size = 0xffff; - - for (i = 0; ; ++id) { - tuple->src.u.icmp.id = htons(ntohs(range->min_proto.icmp.id) + - (id % range_size)); - if (++i == range_size || !nf_nat_used_tuple(tuple, ct)) - return; - } -} - static bool icmpv6_manip_pkt(struct sk_buff *skb, const struct nf_nat_l3proto *l3proto, @@ -83,7 +58,6 @@ const struct nf_nat_l4proto nf_nat_l4proto_icmpv6 = { .l4proto = IPPROTO_ICMPV6, .manip_pkt = icmpv6_manip_pkt, .in_range = icmpv6_in_range, - .unique_tuple = icmpv6_unique_tuple, #if IS_ENABLED(CONFIG_NF_CT_NETLINK) .nlattr_to_range = nf_nat_l4proto_nlattr_to_range, #endif -- cgit v1.2.3