diff options
| author | Patrick McHardy <kaber@trash.net> | 2012-08-26 19:14:04 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-08-30 03:00:13 +0200 |
| commit | 051966c0c644a1c96092d4206e00704ade813c9a (patch) | |
| tree | 9ca8005f3e2a91cbd710b1f2eb52f49bf5f19f84 /include/net | |
| parent | 811927ccfe90fbfcfff5253ba7f95057f6cae692 (diff) | |
netfilter: nf_nat: add protoff argument to packet mangling functions
For mangling IPv6 packets the protocol header offset needs to be known
by the NAT packet mangling functions. Add a so far unused protoff argument
and convert the conntrack and NAT helpers to use it in preparation of
IPv6 NAT.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_nat_helper.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/net/netfilter/nf_nat_helper.h b/include/net/netfilter/nf_nat_helper.h index 7d8fb7b46c44..b4d6bfc2af03 100644 --- a/include/net/netfilter/nf_nat_helper.h +++ b/include/net/netfilter/nf_nat_helper.h @@ -10,6 +10,7 @@ struct sk_buff; extern int __nf_nat_mangle_tcp_packet(struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo, + unsigned int protoff, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, @@ -18,12 +19,13 @@ extern int __nf_nat_mangle_tcp_packet(struct sk_buff *skb, static inline int nf_nat_mangle_tcp_packet(struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo, + unsigned int protoff, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, unsigned int rep_len) { - return __nf_nat_mangle_tcp_packet(skb, ct, ctinfo, + return __nf_nat_mangle_tcp_packet(skb, ct, ctinfo, protoff, match_offset, match_len, rep_buffer, rep_len, true); } @@ -31,6 +33,7 @@ static inline int nf_nat_mangle_tcp_packet(struct sk_buff *skb, extern int nf_nat_mangle_udp_packet(struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info ctinfo, + unsigned int protoff, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, @@ -41,10 +44,12 @@ extern void nf_nat_set_seq_adjust(struct nf_conn *ct, __be32 seq, s16 off); extern int nf_nat_seq_adjust(struct sk_buff *skb, struct nf_conn *ct, - enum ip_conntrack_info ctinfo); + enum ip_conntrack_info ctinfo, + unsigned int protoff); extern int (*nf_nat_seq_adjust_hook)(struct sk_buff *skb, struct nf_conn *ct, - enum ip_conntrack_info ctinfo); + enum ip_conntrack_info ctinfo, + unsigned int protoff); /* Setup NAT on this expected conntrack so it follows master, but goes * to port ct->master->saved_proto. */ |