diff options
| author | Patrick McHardy <kaber@trash.net> | 2013-08-27 08:50:12 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-08-28 00:26:48 +0200 |
| commit | 41d73ec053d2424599c4ed8452b889374d523ade (patch) | |
| tree | 404e0418e7f4c06cd37065eee97f67f6123df160 /include/net/netfilter/nf_nat.h | |
| parent | 706f5151e349a3d8ab85237d0d6c553930376e9f (diff) | |
netfilter: nf_conntrack: make sequence number adjustments usuable without NAT
Split out sequence number adjustments from NAT and move them to the conntrack
core to make them usable for SYN proxying. The sequence number adjustment
information is moved to a seperate extend. The extend is added to new
conntracks when a NAT mapping is set up for a connection using a helper.
As a side effect, this saves 24 bytes per connection with NAT in the common
case that a connection does not have a helper assigned.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Tested-by: Martin Topholm <mph@one.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter/nf_nat.h')
| -rw-r--r-- | include/net/netfilter/nf_nat.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h index e2441413675c..59a192420053 100644 --- a/include/net/netfilter/nf_nat.h +++ b/include/net/netfilter/nf_nat.h @@ -13,15 +13,6 @@ enum nf_nat_manip_type { #define HOOK2MANIP(hooknum) ((hooknum) != NF_INET_POST_ROUTING && \ (hooknum) != NF_INET_LOCAL_IN) -/* NAT sequence number modifications */ -struct nf_nat_seq { - /* position of the last TCP sequence number modification (if any) */ - u_int32_t correction_pos; - - /* sequence number offset before and after last modification */ - int32_t offset_before, offset_after; -}; - #include <linux/list.h> #include <linux/netfilter/nf_conntrack_pptp.h> #include <net/netfilter/nf_conntrack_extend.h> @@ -39,7 +30,6 @@ struct nf_conn; /* The structure embedded in the conntrack structure. */ struct nf_conn_nat { struct hlist_node bysource; - struct nf_nat_seq seq[IP_CT_DIR_MAX]; struct nf_conn *ct; union nf_conntrack_nat_help help; #if defined(CONFIG_IP_NF_TARGET_MASQUERADE) || \ |