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authorFlorian Westphal <fw@strlen.de>2018-12-13 16:01:29 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2018-12-17 23:33:04 +0100
commit203f2e78200c27e42e9f7d063091f950bf5fe4a0 (patch)
tree5249d1c4823cc4654004047c88edb5b5e246ce27 /net/ipv6
parentnetfilter: nat: un-export nf_nat_l4proto_unique_tuple (diff)
downloadlinux-203f2e78200c27e42e9f7d063091f950bf5fe4a0.tar.xz
linux-203f2e78200c27e42e9f7d063091f950bf5fe4a0.zip
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 <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/netfilter/nf_nat_proto_icmpv6.c26
1 files changed, 0 insertions, 26 deletions
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