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| author | Patrick McHardy <kaber@trash.net> | 2008-03-20 15:15:47 +0100 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2008-04-14 11:15:46 +0200 |
| commit | 937e0dfd87a8b7946a17161664500fba93eb13fd (patch) | |
| tree | 2dae4611ca2fc22d8973dcf0dfbed315de70ff86 /include | |
| parent | 544473c1664f3a688be949ac078bdee6f4afeef1 (diff) | |
| download | linux-937e0dfd87a8b7946a17161664500fba93eb13fd.tar.gz linux-937e0dfd87a8b7946a17161664500fba93eb13fd.tar.bz2 linux-937e0dfd87a8b7946a17161664500fba93eb13fd.zip | |
[NETFILTER]: nf_nat: add helpers for common NAT protocol operations
Add generic ->in_range and ->unique_tuple ops to avoid duplicating them
again and again for future NAT modules and save a few bytes of text:
net/ipv4/netfilter/nf_nat_proto_tcp.c:
tcp_in_range | -62 (removed)
tcp_unique_tuple | -259 # 271 -> 12, # inlines: 1 -> 0, size inlines: 7 -> 0
2 functions changed, 321 bytes removed
net/ipv4/netfilter/nf_nat_proto_udp.c:
udp_in_range | -62 (removed)
udp_unique_tuple | -259 # 271 -> 12, # inlines: 1 -> 0, size inlines: 7 -> 0
2 functions changed, 321 bytes removed
net/ipv4/netfilter/nf_nat_proto_gre.c:
gre_in_range | -62 (removed)
1 function changed, 62 bytes removed
vmlinux:
5 functions changed, 704 bytes removed
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/netfilter/nf_nat_protocol.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_nat_protocol.h b/include/net/netfilter/nf_nat_protocol.h index 4aa0edbb5b96..fa06f6d0de54 100644 --- a/include/net/netfilter/nf_nat_protocol.h +++ b/include/net/netfilter/nf_nat_protocol.h @@ -62,6 +62,17 @@ extern int init_protocols(void) __init; extern void cleanup_protocols(void); extern const struct nf_nat_protocol *find_nat_proto(u_int16_t protonum); +extern int nf_nat_proto_in_range(const struct nf_conntrack_tuple *tuple, + enum nf_nat_manip_type maniptype, + const union nf_conntrack_man_proto *min, + const union nf_conntrack_man_proto *max); + +extern int nf_nat_proto_unique_tuple(struct nf_conntrack_tuple *tuple, + const struct nf_nat_range *range, + enum nf_nat_manip_type maniptype, + const struct nf_conn *ct, + u_int16_t *rover); + extern int nf_nat_port_range_to_nlattr(struct sk_buff *skb, const struct nf_nat_range *range); extern int nf_nat_port_nlattr_to_range(struct nlattr *tb[], |