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[NETFILTER]: nf_conntrack/nf_nat: add PPTP helper port

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Add nf_conntrack port of the PPtP conntrack/NAT helper. Since there seems
to be no IPv6-capable PPtP implementation the helper only support IPv4.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2006-12-02 22:09:41 -08:00
committed by David S. Miller
parent 92703eee4c
commit f09943fefe
15 changed files with 1896 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/net/netfilter/ipv4/nf_conntrack_ipv4.h
+2
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@@ -11,10 +11,12 @@
#ifdef CONFIG_NF_NAT_NEEDED
#include <net/netfilter/nf_nat.h>
#include <linux/netfilter/nf_conntrack_pptp.h>
/* per conntrack: nat application helper private data */
union nf_conntrack_nat_help {
/* insert nat helper private data here */
struct nf_nat_pptp nat_pptp_info;
};
struct nf_conn_nat {
include/net/netfilter/nf_conntrack.h
+4
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@@ -21,6 +21,7 @@
#include <linux/netfilter/nf_conntrack_tcp.h>
#include <linux/netfilter/nf_conntrack_sctp.h>
#include <linux/netfilter/nf_conntrack_proto_gre.h>
#include <net/netfilter/ipv4/nf_conntrack_icmp.h>
#include <net/netfilter/ipv6/nf_conntrack_icmpv6.h>
@@ -33,6 +34,7 @@ union nf_conntrack_proto {
struct ip_ct_tcp tcp;
struct ip_ct_icmp icmp;
struct nf_ct_icmpv6 icmpv6;
struct nf_ct_gre gre;
};
union nf_conntrack_expect_proto {
@@ -41,12 +43,14 @@ union nf_conntrack_expect_proto {
/* Add protocol helper include file here */
#include <linux/netfilter/nf_conntrack_ftp.h>
#include <linux/netfilter/nf_conntrack_pptp.h>
#include <linux/netfilter/nf_conntrack_h323.h>
/* per conntrack: application helper private data */
union nf_conntrack_help {
/* insert conntrack helper private data (master) here */
struct nf_ct_ftp_master ct_ftp_info;
struct nf_ct_pptp_master ct_pptp_info;
struct nf_ct_h323_master ct_h323_info;
};
include/net/netfilter/nf_conntrack_helper.h
+2
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@@ -34,6 +34,8 @@ struct nf_conntrack_helper
struct nf_conn *ct,
enum ip_conntrack_info conntrackinfo);
void (*destroy)(struct nf_conn *ct);
int (*to_nfattr)(struct sk_buff *skb, const struct nf_conn *ct);
};
include/net/netfilter/nf_conntrack_tuple.h
+6
View File
@@ -49,6 +49,9 @@ union nf_conntrack_man_proto
struct {
__be16 port;
} sctp;
struct {
__be16 key; /* GRE key is 32bit, PPtP only uses 16bit */
} gre;
};
/* The manipulable part of the tuple. */
@@ -84,6 +87,9 @@ struct nf_conntrack_tuple
struct {
__be16 port;
} sctp;
struct {
__be16 key;
} gre;
} u;
/* The protocol. */