[NETFILTER]: Remove IPv4 only connection tracking/NAT

Remove the obsolete IPv4 only connection tracking/NAT as scheduled in
feature-removal-schedule.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/feature-removal-schedule.txt

@@ -211,15 +211,6 @@ Who:   Adrian Bunk <bunk@stusta.de>
 
 ---------------------------
 
-What:	IPv4 only connection tracking/NAT/helpers
-When:	2.6.22
-Why:	The new layer 3 independant connection tracking replaces the old
-	IPv4 only version. After some stabilization of the new code the
-	old one will be removed.
-Who:	Patrick McHardy <kaber@trash.net>
-
----------------------------
-
 What:	ACPI hooks (X86_SPEEDSTEP_CENTRINO_ACPI) in speedstep-centrino driver
 When:	December 2006
 Why:	Speedstep-centrino driver with ACPI hooks and acpi-cpufreq driver are

include/linux/netfilter_ipv4/Kbuild

-header-y += ip_conntrack_helper.h
-header-y += ip_conntrack_protocol.h
-header-y += ip_conntrack_sctp.h
-header-y += ip_conntrack_tcp.h
-header-y += ip_conntrack_tftp.h
-header-y += ip_nat_pptp.h
 header-y += ipt_addrtype.h
 header-y += ipt_ah.h
 header-y += ipt_CLASSIFY.h
@@ -49,13 +43,5 @@ header-y += ipt_ttl.h
 header-y += ipt_TTL.h
 header-y += ipt_ULOG.h
 
-unifdef-y += ip_conntrack.h
-unifdef-y += ip_conntrack_h323.h
-unifdef-y += ip_conntrack_irc.h
-unifdef-y += ip_conntrack_pptp.h
-unifdef-y += ip_conntrack_proto_gre.h
-unifdef-y += ip_conntrack_tuple.h
-unifdef-y += ip_nat.h
-unifdef-y += ip_nat_rule.h
 unifdef-y += ip_queue.h
 unifdef-y += ip_tables.h

include/linux/netfilter_ipv4/ip_conntrack_amanda.h

-#ifndef _IP_CONNTRACK_AMANDA_H
-#define _IP_CONNTRACK_AMANDA_H
-/* AMANDA tracking. */
-
-struct ip_conntrack_expect;
-extern unsigned int (*ip_nat_amanda_hook)(struct sk_buff **pskb,
-					  enum ip_conntrack_info ctinfo,
-					  unsigned int matchoff,
-					  unsigned int matchlen,
-					  struct ip_conntrack_expect *exp);
-#endif /* _IP_CONNTRACK_AMANDA_H */

include/linux/netfilter_ipv4/ip_conntrack_core.h

-#ifndef _IP_CONNTRACK_CORE_H
-#define _IP_CONNTRACK_CORE_H
-#include <linux/netfilter.h>
-
-#define MAX_IP_CT_PROTO 256
-extern struct ip_conntrack_protocol *ip_ct_protos[MAX_IP_CT_PROTO];
-
-/* This header is used to share core functionality between the
-   standalone connection tracking module, and the compatibility layer's use
-   of connection tracking. */
-extern unsigned int ip_conntrack_in(unsigned int hooknum,
-				    struct sk_buff **pskb,
-				    const struct net_device *in,
-				    const struct net_device *out,
-				    int (*okfn)(struct sk_buff *));
-
-extern int ip_conntrack_init(void);
-extern void ip_conntrack_cleanup(void);
-
-struct ip_conntrack_protocol;
-
-extern int
-ip_ct_get_tuple(const struct iphdr *iph,
-		const struct sk_buff *skb,
-		unsigned int dataoff,
-		struct ip_conntrack_tuple *tuple,
-		const struct ip_conntrack_protocol *protocol);
-
-extern int
-ip_ct_invert_tuple(struct ip_conntrack_tuple *inverse,
-		   const struct ip_conntrack_tuple *orig,
-		   const struct ip_conntrack_protocol *protocol);
-
-/* Find a connection corresponding to a tuple. */
-struct ip_conntrack_tuple_hash *
-ip_conntrack_find_get(const struct ip_conntrack_tuple *tuple,
-		      const struct ip_conntrack *ignored_conntrack);
-
-extern int __ip_conntrack_confirm(struct sk_buff **pskb);
-
-/* Confirm a connection: returns NF_DROP if packet must be dropped. */
-static inline int ip_conntrack_confirm(struct sk_buff **pskb)
-{
-	struct ip_conntrack *ct = (struct ip_conntrack *)(*pskb)->nfct;
-	int ret = NF_ACCEPT;
-
-	if (ct) {
-		if (!is_confirmed(ct) && !is_dying(ct))
-			ret = __ip_conntrack_confirm(pskb);
-		ip_ct_deliver_cached_events(ct);
-	}
-	return ret;
-}
-
-extern void ip_ct_unlink_expect(struct ip_conntrack_expect *exp);
-
-extern struct list_head *ip_conntrack_hash;
-extern struct list_head ip_conntrack_expect_list;
-extern rwlock_t ip_conntrack_lock;
-#endif /* _IP_CONNTRACK_CORE_H */
-

include/linux/netfilter_ipv4/ip_conntrack_ftp.h

-#ifndef _IP_CONNTRACK_FTP_H
-#define _IP_CONNTRACK_FTP_H
-/* FTP tracking. */
-
-/* This enum is exposed to userspace */
-enum ip_ct_ftp_type
-{
-	/* PORT command from client */
-	IP_CT_FTP_PORT,
-	/* PASV response from server */
-	IP_CT_FTP_PASV,
-	/* EPRT command from client */
-	IP_CT_FTP_EPRT,
-	/* EPSV response from server */
-	IP_CT_FTP_EPSV,
-};
-
-#ifdef __KERNEL__
-
-#define FTP_PORT	21
-
-#define NUM_SEQ_TO_REMEMBER 2
-/* This structure exists only once per master */
-struct ip_ct_ftp_master {
-	/* Valid seq positions for cmd matching after newline */
-	u_int32_t seq_aft_nl[IP_CT_DIR_MAX][NUM_SEQ_TO_REMEMBER];
-	/* 0 means seq_match_aft_nl not set */
-	int seq_aft_nl_num[IP_CT_DIR_MAX];
-};
-
-struct ip_conntrack_expect;
-
-/* For NAT to hook in when we find a packet which describes what other
- * connection we should expect. */
-extern unsigned int (*ip_nat_ftp_hook)(struct sk_buff **pskb,
-				       enum ip_conntrack_info ctinfo,
-				       enum ip_ct_ftp_type type,
-				       unsigned int matchoff,
-				       unsigned int matchlen,
-				       struct ip_conntrack_expect *exp,
-				       u32 *seq);
-#endif /* __KERNEL__ */
-
-#endif /* _IP_CONNTRACK_FTP_H */

include/linux/netfilter_ipv4/ip_conntrack_h323.h

-#ifndef _IP_CONNTRACK_H323_H
-#define _IP_CONNTRACK_H323_H
-
-#ifdef __KERNEL__
-
-#include <linux/netfilter/nf_conntrack_h323_asn1.h>
-
-#define RAS_PORT 1719
-#define Q931_PORT 1720
-#define H323_RTP_CHANNEL_MAX 4	/* Audio, video, FAX and other */
-
-/* This structure exists only once per master */
-struct ip_ct_h323_master {
-
-	/* Original and NATed Q.931 or H.245 signal ports */
-	u_int16_t sig_port[IP_CT_DIR_MAX];
-
-	/* Original and NATed RTP ports */
-	u_int16_t rtp_port[H323_RTP_CHANNEL_MAX][IP_CT_DIR_MAX];
-
-	union {
-		/* RAS connection timeout */
-		u_int32_t timeout;
-
-		/* Next TPKT length (for separate TPKT header and data) */
-		u_int16_t tpkt_len[IP_CT_DIR_MAX];
-	};
-};
-
-struct ip_conntrack_expect;
-
-extern int get_h225_addr(unsigned char *data, TransportAddress * addr,
-			 __be32 * ip, u_int16_t * port);
-extern void ip_conntrack_h245_expect(struct ip_conntrack *new,
-				     struct ip_conntrack_expect *this);
-extern void ip_conntrack_q931_expect(struct ip_conntrack *new,
-				     struct ip_conntrack_expect *this);
-extern int (*set_h245_addr_hook) (struct sk_buff ** pskb,
-				  unsigned char **data, int dataoff,
-				  H245_TransportAddress * addr,
-				  __be32 ip, u_int16_t port);
-extern int (*set_h225_addr_hook) (struct sk_buff ** pskb,
-				  unsigned char **data, int dataoff,
-				  TransportAddress * addr,
-				  __be32 ip, u_int16_t port);
-extern int (*set_sig_addr_hook) (struct sk_buff ** pskb,
-				 struct ip_conntrack * ct,
-				 enum ip_conntrack_info ctinfo,
-				 unsigned char **data,
-				 TransportAddress * addr, int count);
-extern int (*set_ras_addr_hook) (struct sk_buff ** pskb,
-				 struct ip_conntrack * ct,
-				 enum ip_conntrack_info ctinfo,
-				 unsigned char **data,
-				 TransportAddress * addr, int count);
-extern int (*nat_rtp_rtcp_hook) (struct sk_buff ** pskb,
-				 struct ip_conntrack * ct,
-				 enum ip_conntrack_info ctinfo,
-				 unsigned char **data, int dataoff,
-				 H245_TransportAddress * addr,
-				 u_int16_t port, u_int16_t rtp_port,
-				 struct ip_conntrack_expect * rtp_exp,
-				 struct ip_conntrack_expect * rtcp_exp);
-extern int (*nat_t120_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
-			     enum ip_conntrack_info ctinfo,
-			     unsigned char **data, int dataoff,
-			     H245_TransportAddress * addr, u_int16_t port,
-			     struct ip_conntrack_expect * exp);
-extern int (*nat_h245_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
-			     enum ip_conntrack_info ctinfo,
-			     unsigned char **data, int dataoff,
-			     TransportAddress * addr, u_int16_t port,
-			     struct ip_conntrack_expect * exp);
-extern int (*nat_callforwarding_hook) (struct sk_buff ** pskb,
-				       struct ip_conntrack * ct,
-				       enum ip_conntrack_info ctinfo,
-				       unsigned char **data, int dataoff,
-				       TransportAddress * addr,
-				       u_int16_t port,
-				       struct ip_conntrack_expect * exp);
-extern int (*nat_q931_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
-			     enum ip_conntrack_info ctinfo,
-			     unsigned char **data, TransportAddress * addr,
-			     int idx, u_int16_t port,
-			     struct ip_conntrack_expect * exp);
-
-#endif
-
-#endif

include/linux/netfilter_ipv4/ip_conntrack_helper.h

-/* IP connection tracking helpers. */
-#ifndef _IP_CONNTRACK_HELPER_H
-#define _IP_CONNTRACK_HELPER_H
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-
-struct module;
-
-struct ip_conntrack_helper
-{	
-	struct list_head list; 		/* Internal use. */
-
-	const char *name;		/* name of the module */
-	struct module *me;		/* pointer to self */
-	unsigned int max_expected;	/* Maximum number of concurrent 
-					 * expected connections */
-	unsigned int timeout;		/* timeout for expecteds */
-
-	/* Mask of things we will help (compared against server response) */
-	struct ip_conntrack_tuple tuple;
-	struct ip_conntrack_tuple mask;
-	
-	/* Function to call when data passes; return verdict, or -1 to
-           invalidate. */
-	int (*help)(struct sk_buff **pskb,
-		    struct ip_conntrack *ct,
-		    enum ip_conntrack_info conntrackinfo);
-
-	void (*destroy)(struct ip_conntrack *ct);
-
-	int (*to_nfattr)(struct sk_buff *skb, const struct ip_conntrack *ct);
-};
-
-extern int ip_conntrack_helper_register(struct ip_conntrack_helper *);
-extern void ip_conntrack_helper_unregister(struct ip_conntrack_helper *);
-
-/* Allocate space for an expectation: this is mandatory before calling 
-   ip_conntrack_expect_related.  You will have to call put afterwards. */
-extern struct ip_conntrack_expect *
-ip_conntrack_expect_alloc(struct ip_conntrack *master);
-extern void ip_conntrack_expect_put(struct ip_conntrack_expect *exp);
-
-/* Add an expected connection: can have more than one per connection */
-extern int ip_conntrack_expect_related(struct ip_conntrack_expect *exp);
-extern void ip_conntrack_unexpect_related(struct ip_conntrack_expect *exp);
-
-#endif /*_IP_CONNTRACK_HELPER_H*/

include/linux/netfilter_ipv4/ip_conntrack_icmp.h

-#ifndef _IP_CONNTRACK_ICMP_H
-#define _IP_CONNTRACK_ICMP_H
-
-#include <net/netfilter/ipv4/nf_conntrack_icmp.h>
-
-#endif /* _IP_CONNTRACK_ICMP_H */

include/linux/netfilter_ipv4/ip_conntrack_irc.h

-/* IRC extension for IP connection tracking.
- * (C) 2000 by Harald Welte <laforge@gnumonks.org>
- * based on RR's ip_conntrack_ftp.h
- *
- * ip_conntrack_irc.h,v 1.6 2000/11/07 18:26:42 laforge Exp
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- *
- *
- */
-#ifndef _IP_CONNTRACK_IRC_H
-#define _IP_CONNTRACK_IRC_H
-
-/* This structure exists only once per master */
-struct ip_ct_irc_master {
-};
-
-#ifdef __KERNEL__
-extern unsigned int (*ip_nat_irc_hook)(struct sk_buff **pskb,
-				       enum ip_conntrack_info ctinfo,
-				       unsigned int matchoff,
-				       unsigned int matchlen,
-				       struct ip_conntrack_expect *exp);
-
-#define IRC_PORT	6667
-
-#endif /* __KERNEL__ */
-
-#endif /* _IP_CONNTRACK_IRC_H */

include/linux/netfilter_ipv4/ip_conntrack_pptp.h

-/* PPTP constants and structs */
-#ifndef _CONNTRACK_PPTP_H
-#define _CONNTRACK_PPTP_H
-
-/* state of the control session */
-enum pptp_ctrlsess_state {
-	PPTP_SESSION_NONE,			/* no session present */
-	PPTP_SESSION_ERROR,			/* some session error */
-	PPTP_SESSION_STOPREQ,			/* stop_sess request seen */
-	PPTP_SESSION_REQUESTED,			/* start_sess request seen */
-	PPTP_SESSION_CONFIRMED,			/* session established */
-};
-
-/* state of the call inside the control session */
-enum pptp_ctrlcall_state {
-	PPTP_CALL_NONE,
-	PPTP_CALL_ERROR,
-	PPTP_CALL_OUT_REQ,
-	PPTP_CALL_OUT_CONF,
-	PPTP_CALL_IN_REQ,
-	PPTP_CALL_IN_REP,
-	PPTP_CALL_IN_CONF,
-	PPTP_CALL_CLEAR_REQ,
-};
-
-
-/* conntrack private data */
-struct ip_ct_pptp_master {
-	enum pptp_ctrlsess_state sstate;	/* session state */
-
-	/* everything below is going to be per-expectation in newnat,
-	 * since there could be more than one call within one session */
-	enum pptp_ctrlcall_state cstate;	/* call state */
-	__be16 pac_call_id;			/* call id of PAC, host byte order */
-	__be16 pns_call_id;			/* call id of PNS, host byte order */
-
-	/* in pre-2.6.11 this used to be per-expect. Now it is per-conntrack
-	 * and therefore imposes a fixed limit on the number of maps */
-	struct ip_ct_gre_keymap *keymap_orig, *keymap_reply;
-};
-
-/* conntrack_expect private member */
-struct ip_ct_pptp_expect {
-	enum pptp_ctrlcall_state cstate; 	/* call state */
-	__be16 pac_call_id;			/* call id of PAC */
-	__be16 pns_call_id;			/* call id of PNS */
-};
-
-
-#ifdef __KERNEL__
-
-#define IP_CONNTR_PPTP		PPTP_CONTROL_PORT
-
-#define PPTP_CONTROL_PORT	1723
-
-#define PPTP_PACKET_CONTROL	1
-#define PPTP_PACKET_MGMT	2
-
-#define PPTP_MAGIC_COOKIE	0x1a2b3c4d
-
-struct pptp_pkt_hdr {
-	__u16	packetLength;
-	__be16	packetType;
-	__be32	magicCookie;
-};
-
-/* PptpControlMessageType values */
-#define PPTP_START_SESSION_REQUEST	1
-#define PPTP_START_SESSION_REPLY	2
-#define PPTP_STOP_SESSION_REQUEST	3
-#define PPTP_STOP_SESSION_REPLY		4
-#define PPTP_ECHO_REQUEST		5
-#define PPTP_ECHO_REPLY			6
-#define PPTP_OUT_CALL_REQUEST		7
-#define PPTP_OUT_CALL_REPLY		8
-#define PPTP_IN_CALL_REQUEST		9
-#define PPTP_IN_CALL_REPLY		10
-#define PPTP_IN_CALL_CONNECT		11
-#define PPTP_CALL_CLEAR_REQUEST		12
-#define PPTP_CALL_DISCONNECT_NOTIFY	13
-#define PPTP_WAN_ERROR_NOTIFY		14
-#define PPTP_SET_LINK_INFO		15
-
-#define PPTP_MSG_MAX			15
-
-/* PptpGeneralError values */
-#define PPTP_ERROR_CODE_NONE		0
-#define PPTP_NOT_CONNECTED		1
-#define PPTP_BAD_FORMAT			2
-#define PPTP_BAD_VALUE			3
-#define PPTP_NO_RESOURCE		4
-#define PPTP_BAD_CALLID			5
-#define PPTP_REMOVE_DEVICE_ERROR	6
-
-struct PptpControlHeader {
-	__be16	messageType;
-	__u16	reserved;
-};
-
-/* FramingCapability Bitmap Values */
-#define PPTP_FRAME_CAP_ASYNC		0x1
-#define PPTP_FRAME_CAP_SYNC		0x2
-
-/* BearerCapability Bitmap Values */
-#define PPTP_BEARER_CAP_ANALOG		0x1
-#define PPTP_BEARER_CAP_DIGITAL		0x2
-
-struct PptpStartSessionRequest {
-	__be16	protocolVersion;
-	__u16	reserved1;
-	__be32	framingCapability;
-	__be32	bearerCapability;
-	__be16	maxChannels;
-	__be16	firmwareRevision;
-	__u8	hostName[64];
-	__u8	vendorString[64];
-};
-
-/* PptpStartSessionResultCode Values */
-#define PPTP_START_OK			1
-#define PPTP_START_GENERAL_ERROR	2
-#define PPTP_START_ALREADY_CONNECTED	3
-#define PPTP_START_NOT_AUTHORIZED	4
-#define PPTP_START_UNKNOWN_PROTOCOL	5
-
-struct PptpStartSessionReply {
-	__be16	protocolVersion;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__be32	framingCapability;
-	__be32	bearerCapability;
-	__be16	maxChannels;
-	__be16	firmwareRevision;
-	__u8	hostName[64];
-	__u8	vendorString[64];
-};
-
-/* PptpStopReasons */
-#define PPTP_STOP_NONE			1
-#define PPTP_STOP_PROTOCOL		2
-#define PPTP_STOP_LOCAL_SHUTDOWN	3
-
-struct PptpStopSessionRequest {
-	__u8	reason;
-	__u8	reserved1;
-	__u16	reserved2;
-};
-
-/* PptpStopSessionResultCode */
-#define PPTP_STOP_OK			1
-#define PPTP_STOP_GENERAL_ERROR		2
-
-struct PptpStopSessionReply {
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__u16	reserved1;
-};
-
-struct PptpEchoRequest {
-	__be32 identNumber;
-};
-
-/* PptpEchoReplyResultCode */
-#define PPTP_ECHO_OK			1
-#define PPTP_ECHO_GENERAL_ERROR		2
-
-struct PptpEchoReply {
-	__be32	identNumber;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__u16	reserved;
-};
-
-/* PptpFramingType */
-#define PPTP_ASYNC_FRAMING		1
-#define PPTP_SYNC_FRAMING		2
-#define PPTP_DONT_CARE_FRAMING		3
-
-/* PptpCallBearerType */
-#define PPTP_ANALOG_TYPE		1
-#define PPTP_DIGITAL_TYPE		2
-#define PPTP_DONT_CARE_BEARER_TYPE	3
-
-struct PptpOutCallRequest {
-	__be16	callID;
-	__be16	callSerialNumber;
-	__be32	minBPS;
-	__be32	maxBPS;
-	__be32	bearerType;
-	__be32	framingType;
-	__be16	packetWindow;
-	__be16	packetProcDelay;
-	__be16	phoneNumberLength;
-	__u16	reserved1;
-	__u8	phoneNumber[64];
-	__u8	subAddress[64];
-};
-
-/* PptpCallResultCode */
-#define PPTP_OUTCALL_CONNECT		1
-#define PPTP_OUTCALL_GENERAL_ERROR	2
-#define PPTP_OUTCALL_NO_CARRIER		3
-#define PPTP_OUTCALL_BUSY		4
-#define PPTP_OUTCALL_NO_DIAL_TONE	5
-#define PPTP_OUTCALL_TIMEOUT		6
-#define PPTP_OUTCALL_DONT_ACCEPT	7
-
-struct PptpOutCallReply {
-	__be16	callID;
-	__be16	peersCallID;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__be16	causeCode;
-	__be32	connectSpeed;
-	__be16	packetWindow;
-	__be16	packetProcDelay;
-	__be32	physChannelID;
-};
-
-struct PptpInCallRequest {
-	__be16	callID;
-	__be16	callSerialNumber;
-	__be32	callBearerType;
-	__be32	physChannelID;
-	__be16	dialedNumberLength;
-	__be16	dialingNumberLength;
-	__u8	dialedNumber[64];
-	__u8	dialingNumber[64];
-	__u8	subAddress[64];
-};
-
-/* PptpInCallResultCode */
-#define PPTP_INCALL_ACCEPT		1
-#define PPTP_INCALL_GENERAL_ERROR	2
-#define PPTP_INCALL_DONT_ACCEPT		3
-
-struct PptpInCallReply {
-	__be16	callID;
-	__be16	peersCallID;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__be16	packetWindow;
-	__be16	packetProcDelay;
-	__u16	reserved;
-};
-
-struct PptpInCallConnected {
-	__be16	peersCallID;
-	__u16	reserved;
-	__be32	connectSpeed;
-	__be16	packetWindow;
-	__be16	packetProcDelay;
-	__be32	callFramingType;
-};
-
-struct PptpClearCallRequest {
-	__be16	callID;
-	__u16	reserved;
-};
-
-struct PptpCallDisconnectNotify {
-	__be16	callID;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__be16	causeCode;
-	__u16	reserved;
-	__u8	callStatistics[128];
-};
-
-struct PptpWanErrorNotify {
-	__be16	peersCallID;
-	__u16	reserved;
-	__be32	crcErrors;
-	__be32	framingErrors;
-	__be32	hardwareOverRuns;
-	__be32	bufferOverRuns;
-	__be32	timeoutErrors;
-	__be32	alignmentErrors;
-};
-
-struct PptpSetLinkInfo {
-	__be16	peersCallID;
-	__u16	reserved;
-	__be32	sendAccm;
-	__be32	recvAccm;
-};
-
-union pptp_ctrl_union {
-	struct PptpStartSessionRequest	sreq;
-	struct PptpStartSessionReply	srep;
-	struct PptpStopSessionRequest	streq;
-	struct PptpStopSessionReply	strep;
-	struct PptpOutCallRequest	ocreq;
-	struct PptpOutCallReply		ocack;
-	struct PptpInCallRequest	icreq;
-	struct PptpInCallReply		icack;
-	struct PptpInCallConnected	iccon;
-	struct PptpClearCallRequest	clrreq;
-	struct PptpCallDisconnectNotify disc;
-	struct PptpWanErrorNotify	wanerr;
-	struct PptpSetLinkInfo		setlink;
-};
-
-extern int
-(*ip_nat_pptp_hook_outbound)(struct sk_buff **pskb,
-			  struct ip_conntrack *ct,
-			  enum ip_conntrack_info ctinfo,
-			  struct PptpControlHeader *ctlh,
-			  union pptp_ctrl_union *pptpReq);
-
-extern int
-(*ip_nat_pptp_hook_inbound)(struct sk_buff **pskb,
-			  struct ip_conntrack *ct,
-			  enum ip_conntrack_info ctinfo,
-			  struct PptpControlHeader *ctlh,
-			  union pptp_ctrl_union *pptpReq);
-
-extern void
-(*ip_nat_pptp_hook_exp_gre)(struct ip_conntrack_expect *exp_orig,
-			    struct ip_conntrack_expect *exp_reply);
-
-extern void
-(*ip_nat_pptp_hook_expectfn)(struct ip_conntrack *ct,
-			     struct ip_conntrack_expect *exp);
-#endif /* __KERNEL__ */
-#endif /* _CONNTRACK_PPTP_H */

include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h

-#ifndef _CONNTRACK_PROTO_GRE_H
-#define _CONNTRACK_PROTO_GRE_H
-#include <asm/byteorder.h>
-
-/* GRE PROTOCOL HEADER */
-
-/* GRE Version field */
-#define GRE_VERSION_1701	0x0
-#define GRE_VERSION_PPTP	0x1
-
-/* GRE Protocol field */
-#define GRE_PROTOCOL_PPTP	0x880B
-
-/* GRE Flags */
-#define GRE_FLAG_C		0x80
-#define GRE_FLAG_R		0x40
-#define GRE_FLAG_K		0x20
-#define GRE_FLAG_S		0x10
-#define GRE_FLAG_A		0x80
-
-#define GRE_IS_C(f)	((f)&GRE_FLAG_C)
-#define GRE_IS_R(f)	((f)&GRE_FLAG_R)
-#define GRE_IS_K(f)	((f)&GRE_FLAG_K)
-#define GRE_IS_S(f)	((f)&GRE_FLAG_S)
-#define GRE_IS_A(f)	((f)&GRE_FLAG_A)
-
-/* GRE is a mess: Four different standards */
-struct gre_hdr {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
-	__u16	rec:3,
-		srr:1,
-		seq:1,
-		key:1,
-		routing:1,
-		csum:1,
-		version:3,
-		reserved:4,
-		ack:1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
-	__u16	csum:1,
-		routing:1,
-		key:1,
-		seq:1,
-		srr:1,
-		rec:3,
-		ack:1,
-		reserved:4,
-		version:3;
-#else
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
-	__be16	protocol;
-};
-
-/* modified GRE header for PPTP */
-struct gre_hdr_pptp {
-	__u8   flags;		/* bitfield */
-	__u8   version;		/* should be GRE_VERSION_PPTP */
-	__be16 protocol;	/* should be GRE_PROTOCOL_PPTP */
-	__be16 payload_len;	/* size of ppp payload, not inc. gre header */
-	__be16 call_id;		/* peer's call_id for this session */
-	__be32 seq;		/* sequence number.  Present if S==1 */
-	__be32 ack;		/* seq number of highest packet recieved by */
-				/*  sender in this session */
-};
-
-
-/* this is part of ip_conntrack */
-struct ip_ct_gre {
-	unsigned int stream_timeout;
-	unsigned int timeout;
-};
-
-#ifdef __KERNEL__
-struct ip_conntrack_expect;
-struct ip_conntrack;
-
-/* structure for original <-> reply keymap */
-struct ip_ct_gre_keymap {
-	struct list_head list;
-
-	struct ip_conntrack_tuple tuple;
-};
-
-/* add new tuple->key_reply pair to keymap */
-int ip_ct_gre_keymap_add(struct ip_conntrack *ct,
-			 struct ip_conntrack_tuple *t,
-			 int reply);
-
-/* delete keymap entries */
-void ip_ct_gre_keymap_destroy(struct ip_conntrack *ct);
-
-
-/* get pointer to gre key, if present */
-static inline __be32 *gre_key(struct gre_hdr *greh)
-{
-	if (!greh->key)
-		return NULL;
-	if (greh->csum || greh->routing)
-		return (__be32 *) (greh+sizeof(*greh)+4);
-	return (__be32 *) (greh+sizeof(*greh));
-}
-
-/* get pointer ot gre csum, if present */
-static inline __sum16 *gre_csum(struct gre_hdr *greh)
-{
-	if (!greh->csum)
-		return NULL;
-	return (__sum16 *) (greh+sizeof(*greh));
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* _CONNTRACK_PROTO_GRE_H */

include/linux/netfilter_ipv4/ip_conntrack_protocol.h

-/* Header for use in defining a given protocol for connection tracking. */
-#ifndef _IP_CONNTRACK_PROTOCOL_H
-#define _IP_CONNTRACK_PROTOCOL_H
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-
-struct seq_file;
-
-struct ip_conntrack_protocol
-{
-	/* Protocol number. */
-	u_int8_t proto;
-
-	/* Protocol name */
-	const char *name;
-
-	/* Try to fill in the third arg: dataoff is offset past IP
-           hdr.  Return true if possible. */
-	int (*pkt_to_tuple)(const struct sk_buff *skb,
-			   unsigned int dataoff,
-			   struct ip_conntrack_tuple *tuple);
-
-	/* Invert the per-proto part of the tuple: ie. turn xmit into reply.
-	 * Some packets can't be inverted: return 0 in that case.
-	 */
-	int (*invert_tuple)(struct ip_conntrack_tuple *inverse,
-			    const struct ip_conntrack_tuple *orig);
-
-	/* Print out the per-protocol part of the tuple. Return like seq_* */
-	int (*print_tuple)(struct seq_file *,
-			   const struct ip_conntrack_tuple *);
-
-	/* Print out the private part of the conntrack. */
-	int (*print_conntrack)(struct seq_file *, const struct ip_conntrack *);
-
-	/* Returns verdict for packet, or -1 for invalid. */
-	int (*packet)(struct ip_conntrack *conntrack,
-		      const struct sk_buff *skb,
-		      enum ip_conntrack_info ctinfo);
-
-	/* Called when a new connection for this protocol found;
-	 * returns TRUE if it's OK.  If so, packet() called next. */
-	int (*new)(struct ip_conntrack *conntrack, const struct sk_buff *skb);
-
-	/* Called when a conntrack entry is destroyed */
-	void (*destroy)(struct ip_conntrack *conntrack);
-
-	int (*error)(struct sk_buff *skb, enum ip_conntrack_info *ctinfo,
-		     unsigned int hooknum);
-
-	/* convert protoinfo to nfnetink attributes */
-	int (*to_nfattr)(struct sk_buff *skb, struct nfattr *nfa,
-			 const struct ip_conntrack *ct);
-
-	/* convert nfnetlink attributes to protoinfo */
-	int (*from_nfattr)(struct nfattr *tb[], struct ip_conntrack *ct);
-
-	int (*tuple_to_nfattr)(struct sk_buff *skb,
-			       const struct ip_conntrack_tuple *t);
-	int (*nfattr_to_tuple)(struct nfattr *tb[],
-			       struct ip_conntrack_tuple *t);
-
-	/* Module (if any) which this is connected to. */
-	struct module *me;
-};
-
-/* Protocol registration. */
-extern int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto);
-extern void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto);
-/* Existing built-in protocols */
-extern struct ip_conntrack_protocol ip_conntrack_protocol_tcp;
-extern struct ip_conntrack_protocol ip_conntrack_protocol_udp;
-extern struct ip_conntrack_protocol ip_conntrack_protocol_icmp;
-extern struct ip_conntrack_protocol ip_conntrack_generic_protocol;
-extern int ip_conntrack_protocol_tcp_init(void);
-
-/* Log invalid packets */
-extern unsigned int ip_ct_log_invalid;
-
-extern int ip_ct_port_tuple_to_nfattr(struct sk_buff *,
-				      const struct ip_conntrack_tuple *);
-extern int ip_ct_port_nfattr_to_tuple(struct nfattr *tb[],
-				      struct ip_conntrack_tuple *);
-
-#ifdef CONFIG_SYSCTL
-#ifdef DEBUG_INVALID_PACKETS
-#define LOG_INVALID(proto) \
-	(ip_ct_log_invalid == (proto) || ip_ct_log_invalid == IPPROTO_RAW)
-#else
-#define LOG_INVALID(proto) \
-	((ip_ct_log_invalid == (proto) || ip_ct_log_invalid == IPPROTO_RAW) \
-	 && net_ratelimit())
-#endif
-#else
-#define LOG_INVALID(proto) 0
-#endif /* CONFIG_SYSCTL */
-
-#endif /*_IP_CONNTRACK_PROTOCOL_H*/

include/linux/netfilter_ipv4/ip_conntrack_sctp.h

-#ifndef _IP_CONNTRACK_SCTP_H
-#define _IP_CONNTRACK_SCTP_H
-
-#include <linux/netfilter/nf_conntrack_sctp.h>
-
-#endif /* _IP_CONNTRACK_SCTP_H */

include/linux/netfilter_ipv4/ip_conntrack_sip.h

-#ifndef __IP_CONNTRACK_SIP_H__
-#define __IP_CONNTRACK_SIP_H__
-#ifdef __KERNEL__
-
-#define SIP_PORT	5060
-#define SIP_TIMEOUT	3600
-
-enum sip_header_pos {
-	POS_REG_REQ_URI,
-	POS_REQ_URI,
-	POS_FROM,
-	POS_TO,
-	POS_VIA,
-	POS_CONTACT,
-	POS_CONTENT,
-	POS_MEDIA,
-	POS_OWNER,
-	POS_CONNECTION,
-	POS_SDP_HEADER,
-};
-
-extern unsigned int (*ip_nat_sip_hook)(struct sk_buff **pskb,
-				       enum ip_conntrack_info ctinfo,
-				       struct ip_conntrack *ct,
-				       const char **dptr);
-extern unsigned int (*ip_nat_sdp_hook)(struct sk_buff **pskb,
-				       enum ip_conntrack_info ctinfo,
-				       struct ip_conntrack_expect *exp,
-				       const char *dptr);
-
-extern int ct_sip_get_info(const char *dptr, size_t dlen,
-			   unsigned int *matchoff,
-			   unsigned int *matchlen,
-			   enum sip_header_pos pos);
-extern int ct_sip_lnlen(const char *line, const char *limit);
-extern const char *ct_sip_search(const char *needle, const char *haystack,
-				 size_t needle_len, size_t haystack_len,
-				 int case_sensitive);
-#endif /* __KERNEL__ */
-#endif /* __IP_CONNTRACK_SIP_H__ */

include/linux/netfilter_ipv4/ip_conntrack_tcp.h

-#ifndef _IP_CONNTRACK_TCP_H
-#define _IP_CONNTRACK_TCP_H
-
-#include <linux/netfilter/nf_conntrack_tcp.h>
-
-#endif /* _IP_CONNTRACK_TCP_H */

include/linux/netfilter_ipv4/ip_conntrack_tftp.h

-#ifndef _IP_CT_TFTP
-#define _IP_CT_TFTP
-
-#define TFTP_PORT 69
-
-struct tftphdr {
-	__be16 opcode;
-};
-
-#define TFTP_OPCODE_READ	1
-#define TFTP_OPCODE_WRITE	2
-#define TFTP_OPCODE_DATA	3
-#define TFTP_OPCODE_ACK		4
-#define TFTP_OPCODE_ERROR	5
-
-extern unsigned int (*ip_nat_tftp_hook)(struct sk_buff **pskb,
-				 enum ip_conntrack_info ctinfo,
-				 struct ip_conntrack_expect *exp);
-
-#endif /* _IP_CT_TFTP */

include/linux/netfilter_ipv4/ip_conntrack_tuple.h

-#ifndef _IP_CONNTRACK_TUPLE_H
-#define _IP_CONNTRACK_TUPLE_H
-
-#include <linux/types.h>
-#include <linux/netfilter/nf_conntrack_tuple_common.h>
-
-/* A `tuple' is a structure containing the information to uniquely
-  identify a connection.  ie. if two packets have the same tuple, they
-  are in the same connection; if not, they are not.
-
-  We divide the structure along "manipulatable" and
-  "non-manipulatable" lines, for the benefit of the NAT code.
-*/
-
-/* The protocol-specific manipulable parts of the tuple: always in
-   network order! */
-union ip_conntrack_manip_proto
-{
-	/* Add other protocols here. */
-	u_int16_t all;
-
-	struct {
-		__be16 port;
-	} tcp;
-	struct {
-		__be16 port;
-	} udp;
-	struct {
-		__be16 id;
-	} icmp;
-	struct {
-		__be16 port;
-	} sctp;
-	struct {
-		__be16 key;	/* key is 32bit, pptp only uses 16 */
-	} gre;
-};
-
-/* The manipulable part of the tuple. */
-struct ip_conntrack_manip
-{
-	__be32 ip;
-	union ip_conntrack_manip_proto u;
-};
-
-/* This contains the information to distinguish a connection. */
-struct ip_conntrack_tuple
-{
-	struct ip_conntrack_manip src;
-
-	/* These are the parts of the tuple which are fixed. */
-	struct {
-		__be32 ip;
-		union {
-			/* Add other protocols here. */
-			u_int16_t all;
-
-			struct {
-				__be16 port;
-			} tcp;
-			struct {
-				__be16 port;
-			} udp;
-			struct {
-				u_int8_t type, code;
-			} icmp;
-			struct {
-				__be16 port;
-			} sctp;
-			struct {
-				__be16 key;	/* key is 32bit, 
-						 * pptp only uses 16 */
-			} gre;
-		} u;
-
-		/* The protocol. */
-		u_int8_t protonum;
-
-		/* The direction (for tuplehash) */
-		u_int8_t dir;
-	} dst;
-};
-
-/* This is optimized opposed to a memset of the whole structure.  Everything we
- * really care about is the  source/destination unions */
-#define IP_CT_TUPLE_U_BLANK(tuple) 				\
-	do {							\
-		(tuple)->src.u.all = 0;				\
-		(tuple)->dst.u.all = 0;				\
-	} while (0)
-
-#ifdef __KERNEL__
-
-#define DUMP_TUPLE(tp)						\
-DEBUGP("tuple %p: %u %u.%u.%u.%u:%hu -> %u.%u.%u.%u:%hu\n",	\
-       (tp), (tp)->dst.protonum,				\
-       NIPQUAD((tp)->src.ip), ntohs((tp)->src.u.all),		\
-       NIPQUAD((tp)->dst.ip), ntohs((tp)->dst.u.all))
-
-/* If we're the first tuple, it's the original dir. */
-#define DIRECTION(h) ((enum ip_conntrack_dir)(h)->tuple.dst.dir)
-
-/* Connections have two entries in the hash table: one for each way */
-struct ip_conntrack_tuple_hash
-{
-	struct list_head list;
-
-	struct ip_conntrack_tuple tuple;
-};
-
-#endif /* __KERNEL__ */
-
-static inline int ip_ct_tuple_src_equal(const struct ip_conntrack_tuple *t1,
-				        const struct ip_conntrack_tuple *t2)
-{
-	return t1->src.ip == t2->src.ip
-		&& t1->src.u.all == t2->src.u.all;
-}
-
-static inline int ip_ct_tuple_dst_equal(const struct ip_conntrack_tuple *t1,
-				        const struct ip_conntrack_tuple *t2)
-{
-	return t1->dst.ip == t2->dst.ip
-		&& t1->dst.u.all == t2->dst.u.all
-		&& t1->dst.protonum == t2->dst.protonum;
-}
-
-static inline int ip_ct_tuple_equal(const struct ip_conntrack_tuple *t1,
-				    const struct ip_conntrack_tuple *t2)
-{
-	return ip_ct_tuple_src_equal(t1, t2) && ip_ct_tuple_dst_equal(t1, t2);
-}
-
-static inline int ip_ct_tuple_mask_cmp(const struct ip_conntrack_tuple *t,
-				       const struct ip_conntrack_tuple *tuple,
-				       const struct ip_conntrack_tuple *mask)
-{
-	return !(((t->src.ip ^ tuple->src.ip) & mask->src.ip)
-		 || ((t->dst.ip ^ tuple->dst.ip) & mask->dst.ip)
-		 || ((t->src.u.all ^ tuple->src.u.all) & mask->src.u.all)
-		 || ((t->dst.u.all ^ tuple->dst.u.all) & mask->dst.u.all)
-		 || ((t->dst.protonum ^ tuple->dst.protonum)
-		     & mask->dst.protonum));
-}
-
-#endif /* _IP_CONNTRACK_TUPLE_H */

include/linux/netfilter_ipv4/ip_nat.h

-#ifndef _IP_NAT_H
-#define _IP_NAT_H
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-
-#define IP_NAT_MAPPING_TYPE_MAX_NAMELEN 16
-
-enum ip_nat_manip_type
-{
-	IP_NAT_MANIP_SRC,
-	IP_NAT_MANIP_DST
-};
-
-/* SRC manip occurs POST_ROUTING or LOCAL_IN */
-#define HOOK2MANIP(hooknum) ((hooknum) != NF_IP_POST_ROUTING && (hooknum) != NF_IP_LOCAL_IN)
-
-#define IP_NAT_RANGE_MAP_IPS 1
-#define IP_NAT_RANGE_PROTO_SPECIFIED 2
-#define IP_NAT_RANGE_PROTO_RANDOM 4 /* add randomness to "port" selection */
-
-/* NAT sequence number modifications */
-struct ip_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 */
-	int16_t offset_before, offset_after;
-};
-
-/* Single range specification. */
-struct ip_nat_range
-{
-	/* Set to OR of flags above. */
-	unsigned int flags;
-
-	/* Inclusive: network order. */
-	__be32 min_ip, max_ip;
-
-	/* Inclusive: network order */
-	union ip_conntrack_manip_proto min, max;
-};
-
-/* For backwards compat: don't use in modern code. */
-struct ip_nat_multi_range_compat
-{
-	unsigned int rangesize; /* Must be 1. */
-
-	/* hangs off end. */
-	struct ip_nat_range range[1];
-};
-
-#ifdef __KERNEL__
-#include <linux/list.h>
-
-/* Protects NAT hash tables, and NAT-private part of conntracks. */
-extern rwlock_t ip_nat_lock;
-
-/* The structure embedded in the conntrack structure. */
-struct ip_nat_info
-{
-	struct list_head bysource;
-	struct ip_nat_seq seq[IP_CT_DIR_MAX];
-};
-
-struct ip_conntrack;
-
-/* Set up the info structure to map into this range. */
-extern unsigned int ip_nat_setup_info(struct ip_conntrack *conntrack,
-				      const struct ip_nat_range *range,
-				      unsigned int hooknum);
-
-/* Is this tuple already taken? (not by us)*/
-extern int ip_nat_used_tuple(const struct ip_conntrack_tuple *tuple,
-			     const struct ip_conntrack *ignored_conntrack);
-
-#else  /* !__KERNEL__: iptables wants this to compile. */
-#define ip_nat_multi_range ip_nat_multi_range_compat
-#endif /*__KERNEL__*/
-#endif

include/linux/netfilter_ipv4/ip_nat_core.h

-#ifndef _IP_NAT_CORE_H
-#define _IP_NAT_CORE_H
-#include <linux/list.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-
-/* This header used to share core functionality between the standalone
-   NAT module, and the compatibility layer's use of NAT for masquerading. */
-
-extern unsigned int ip_nat_packet(struct ip_conntrack *ct,
-			       enum ip_conntrack_info conntrackinfo,
-			       unsigned int hooknum,
-			       struct sk_buff **pskb);
-
-extern int ip_nat_icmp_reply_translation(struct ip_conntrack *ct,
-					 enum ip_conntrack_info ctinfo,
-					 unsigned int hooknum,
-					 struct sk_buff **pskb);
-#endif /* _IP_NAT_CORE_H */

include/linux/netfilter_ipv4/ip_nat_helper.h

-#ifndef _IP_NAT_HELPER_H
-#define _IP_NAT_HELPER_H
-/* NAT protocol helper routines. */
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/module.h>
-
-struct sk_buff;
-
-/* These return true or false. */
-extern int ip_nat_mangle_tcp_packet(struct sk_buff **skb,
-				struct ip_conntrack *ct,
-				enum ip_conntrack_info ctinfo,
-				unsigned int match_offset,
-				unsigned int match_len,
-				const char *rep_buffer,
-				unsigned int rep_len);
-extern int ip_nat_mangle_udp_packet(struct sk_buff **skb,
-				struct ip_conntrack *ct,
-				enum ip_conntrack_info ctinfo,
-				unsigned int match_offset,
-				unsigned int match_len,
-				const char *rep_buffer,
-				unsigned int rep_len);
-extern int ip_nat_seq_adjust(struct sk_buff **pskb, 
-			     struct ip_conntrack *ct, 
-			     enum ip_conntrack_info ctinfo);
-
-/* Setup NAT on this expected conntrack so it follows master, but goes
- * to port ct->master->saved_proto. */
-extern void ip_nat_follow_master(struct ip_conntrack *ct,
-				 struct ip_conntrack_expect *this);
-#endif

include/linux/netfilter_ipv4/ip_nat_pptp.h

-/* PPTP constants and structs */
-#ifndef _NAT_PPTP_H
-#define _NAT_PPTP_H
-
-/* conntrack private data */
-struct ip_nat_pptp {
-	__be16 pns_call_id;		/* NAT'ed PNS call id */
-	__be16 pac_call_id;		/* NAT'ed PAC call id */
-};
-
-#endif /* _NAT_PPTP_H */

include/linux/netfilter_ipv4/ip_nat_protocol.h

-/* Header for use in defining a given protocol. */
-#ifndef _IP_NAT_PROTOCOL_H
-#define _IP_NAT_PROTOCOL_H
-#include <linux/init.h>
-#include <linux/list.h>
-
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-
-struct iphdr;
-struct ip_nat_range;
-
-struct ip_nat_protocol
-{
-	/* Protocol name */
-	const char *name;
-
-	/* Protocol number. */
-	unsigned int protonum;
-
-	struct module *me;
-
-	/* Translate a packet to the target according to manip type.
-	   Return true if succeeded. */
-	int (*manip_pkt)(struct sk_buff **pskb,
-			 unsigned int iphdroff,
-			 const struct ip_conntrack_tuple *tuple,
-			 enum ip_nat_manip_type maniptype);
-
-	/* Is the manipable part of the tuple between min and max incl? */
-	int (*in_range)(const struct ip_conntrack_tuple *tuple,
-			enum ip_nat_manip_type maniptype,
-			const union ip_conntrack_manip_proto *min,
-			const union ip_conntrack_manip_proto *max);
-
-	/* Alter the per-proto part of the tuple (depending on
-	   maniptype), to give a unique tuple in the given range if
-	   possible; return false if not.  Per-protocol part of tuple
-	   is initialized to the incoming packet. */
-	int (*unique_tuple)(struct ip_conntrack_tuple *tuple,
-			    const struct ip_nat_range *range,
-			    enum ip_nat_manip_type maniptype,
-			    const struct ip_conntrack *conntrack);
-
-	int (*range_to_nfattr)(struct sk_buff *skb,
-			       const struct ip_nat_range *range);
-
-	int (*nfattr_to_range)(struct nfattr *tb[],
-			       struct ip_nat_range *range);
-};
-
-/* Protocol registration. */
-extern int ip_nat_protocol_register(struct ip_nat_protocol *proto);
-extern void ip_nat_protocol_unregister(struct ip_nat_protocol *proto);
-
-extern struct ip_nat_protocol *ip_nat_proto_find_get(u_int8_t protocol);
-extern void ip_nat_proto_put(struct ip_nat_protocol *proto);
-
-/* Built-in protocols. */
-extern struct ip_nat_protocol ip_nat_protocol_tcp;
-extern struct ip_nat_protocol ip_nat_protocol_udp;
-extern struct ip_nat_protocol ip_nat_protocol_icmp;
-extern struct ip_nat_protocol ip_nat_unknown_protocol;
-
-extern int init_protocols(void) __init;
-extern void cleanup_protocols(void);
-extern struct ip_nat_protocol *find_nat_proto(u_int16_t protonum);
-
-extern int ip_nat_port_range_to_nfattr(struct sk_buff *skb,
-				       const struct ip_nat_range *range);
-extern int ip_nat_port_nfattr_to_range(struct nfattr *tb[],
-				       struct ip_nat_range *range);
-
-#endif /*_IP_NAT_PROTO_H*/

include/linux/netfilter_ipv4/ip_nat_rule.h

-#ifndef _IP_NAT_RULE_H
-#define _IP_NAT_RULE_H
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-
-#ifdef __KERNEL__
-
-extern int ip_nat_rule_init(void) __init;
-extern void ip_nat_rule_cleanup(void);
-extern int ip_nat_rule_find(struct sk_buff **pskb,
-			    unsigned int hooknum,
-			    const struct net_device *in,
-			    const struct net_device *out,
-			    struct ip_conntrack *ct,
-			    struct ip_nat_info *info);
-
-extern unsigned int
-alloc_null_binding(struct ip_conntrack *conntrack,
-		   struct ip_nat_info *info,
-		   unsigned int hooknum);
-
-extern unsigned int
-alloc_null_binding_confirmed(struct ip_conntrack *conntrack,
-			     struct ip_nat_info *info,
-			     unsigned int hooknum);
-#endif
-#endif /* _IP_NAT_RULE_H */

include/linux/netfilter_ipv4/ipt_SAME.h

@@ -13,7 +13,7 @@ struct ipt_same_info
 	u_int32_t *iparray;
 
 	/* hangs off end. */
-	struct ip_nat_range range[IPT_SAME_MAX_RANGE];
+	struct nf_nat_range range[IPT_SAME_MAX_RANGE];
 };
 
 #endif /*_IPT_SAME_H*/

include/net/netfilter/nf_conntrack.h

@@ -250,6 +250,11 @@ static inline int nf_ct_is_dying(struct nf_conn *ct)
 	return test_bit(IPS_DYING_BIT, &ct->status);
 }
 
+static inline int nf_ct_is_untracked(const struct sk_buff *skb)
+{
+	return (skb->nfct == &nf_conntrack_untracked.ct_general);
+}
+
 extern unsigned int nf_conntrack_htable_size;
 extern int nf_conntrack_checksum;
 extern atomic_t nf_conntrack_count;

include/net/netfilter/nf_conntrack_compat.h

-#ifndef _NF_CONNTRACK_COMPAT_H
-#define _NF_CONNTRACK_COMPAT_H
-
-#ifdef __KERNEL__
-
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/socket.h>
-
-#ifdef CONFIG_IP_NF_CONNTRACK_MARK
-static inline u_int32_t *nf_ct_get_mark(const struct sk_buff *skb,
-					u_int32_t *ctinfo)
-{
-	struct ip_conntrack *ct = ip_conntrack_get(skb, ctinfo);
-
-	if (ct)
-		return &ct->mark;
-	else
-		return NULL;
-}
-#endif /* CONFIG_IP_NF_CONNTRACK_MARK */
-
-#ifdef CONFIG_IP_NF_CONNTRACK_SECMARK
-static inline u_int32_t *nf_ct_get_secmark(const struct sk_buff *skb,
-					   u_int32_t *ctinfo)
-{
-	struct ip_conntrack *ct = ip_conntrack_get(skb, ctinfo);
-
-	if (ct)
-		return &ct->secmark;
-	else
-		return NULL;
-}
-#endif /* CONFIG_IP_NF_CONNTRACK_SECMARK */
-
-#ifdef CONFIG_IP_NF_CT_ACCT
-static inline struct ip_conntrack_counter *
-nf_ct_get_counters(const struct sk_buff *skb)
-{
-	enum ip_conntrack_info ctinfo;
-	struct ip_conntrack *ct = ip_conntrack_get(skb, &ctinfo);
-
-	if (ct)
-		return ct->counters;
-	else
-		return NULL;
-}
-#endif /* CONFIG_IP_NF_CT_ACCT */
-
-static inline int nf_ct_is_untracked(const struct sk_buff *skb)
-{
-	return (skb->nfct == &ip_conntrack_untracked.ct_general);
-}
-
-static inline void nf_ct_untrack(struct sk_buff *skb)
-{
-	skb->nfct = &ip_conntrack_untracked.ct_general;
-}
-
-static inline int nf_ct_get_ctinfo(const struct sk_buff *skb,
-				   enum ip_conntrack_info *ctinfo)
-{
-	struct ip_conntrack *ct = ip_conntrack_get(skb, ctinfo);
-	return (ct != NULL);
-}
-
-static inline int nf_ct_l3proto_try_module_get(unsigned short l3proto)
-{
-	need_conntrack();
-	return l3proto == PF_INET ? 0 : -1;
-}
-
-static inline void nf_ct_l3proto_module_put(unsigned short l3proto)
-{
-}
-
-#else /* CONFIG_IP_NF_CONNTRACK */
-
-#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
-#include <net/netfilter/nf_conntrack.h>
-
-#ifdef CONFIG_NF_CONNTRACK_MARK
-
-static inline u_int32_t *nf_ct_get_mark(const struct sk_buff *skb,
-					u_int32_t *ctinfo)
-{
-	struct nf_conn *ct = nf_ct_get(skb, ctinfo);
-
-	if (ct)
-		return &ct->mark;
-	else
-		return NULL;
-}
-#endif /* CONFIG_NF_CONNTRACK_MARK */
-
-#ifdef CONFIG_NF_CONNTRACK_SECMARK
-static inline u_int32_t *nf_ct_get_secmark(const struct sk_buff *skb,
-					   u_int32_t *ctinfo)
-{
-	struct nf_conn *ct = nf_ct_get(skb, ctinfo);
-
-	if (ct)
-		return &ct->secmark;
-	else
-		return NULL;
-}
-#endif /* CONFIG_NF_CONNTRACK_MARK */
-
-#ifdef CONFIG_NF_CT_ACCT
-static inline struct ip_conntrack_counter *
-nf_ct_get_counters(const struct sk_buff *skb)
-{
-	enum ip_conntrack_info ctinfo;
-	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
-
-	if (ct)
-		return ct->counters;
-	else
-		return NULL;
-}
-#endif /* CONFIG_NF_CT_ACCT */
-
-static inline int nf_ct_is_untracked(const struct sk_buff *skb)
-{
-	return (skb->nfct == &nf_conntrack_untracked.ct_general);
-}
-
-static inline void nf_ct_untrack(struct sk_buff *skb)
-{
-	skb->nfct = &nf_conntrack_untracked.ct_general;
-}
-
-static inline int nf_ct_get_ctinfo(const struct sk_buff *skb,
-				   enum ip_conntrack_info *ctinfo)
-{
-	struct nf_conn *ct = nf_ct_get(skb, ctinfo);
-	return (ct != NULL);
-}
-
-#endif /* CONFIG_IP_NF_CONNTRACK */
-
-#endif /* __KERNEL__ */
-
-#endif /* _NF_CONNTRACK_COMPAT_H */

include/net/netfilter/nf_nat_rule.h

@@ -4,16 +4,6 @@
 #include <net/netfilter/nf_nat.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 
-/* Compatibility definitions for ipt_FOO modules */
-#define ip_nat_range			nf_nat_range
-#define ip_conntrack_tuple		nf_conntrack_tuple
-#define ip_conntrack_get		nf_ct_get
-#define ip_conntrack			nf_conn
-#define ip_nat_setup_info		nf_nat_setup_info
-#define ip_nat_multi_range_compat	nf_nat_multi_range_compat
-#define ip_ct_iterate_cleanup		nf_ct_iterate_cleanup
-#define	IP_NF_ASSERT			NF_CT_ASSERT
-
 extern int nf_nat_rule_init(void) __init;
 extern void nf_nat_rule_cleanup(void);
 extern int nf_nat_rule_find(struct sk_buff **pskb,

net/ipv4/netfilter/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the netfilter modules on top of IPv4.
 #
 
-# objects for the standalone - connection tracking / NAT
-ip_conntrack-objs	:= ip_conntrack_standalone.o ip_conntrack_core.o ip_conntrack_proto_generic.o ip_conntrack_proto_tcp.o ip_conntrack_proto_udp.o ip_conntrack_proto_icmp.o
 # objects for l3 independent conntrack
 nf_conntrack_ipv4-objs  :=  nf_conntrack_l3proto_ipv4.o nf_conntrack_proto_icmp.o
 ifeq ($(CONFIG_NF_CONNTRACK_PROC_COMPAT),y)
@@ -12,53 +10,14 @@ nf_conntrack_ipv4-objs	+= nf_conntrack_l3proto_ipv4_compat.o
 endif
 endif
 
-ip_nat-objs	:= ip_nat_core.o ip_nat_helper.o ip_nat_proto_unknown.o ip_nat_proto_tcp.o ip_nat_proto_udp.o ip_nat_proto_icmp.o
-nf_nat-objs	:= nf_nat_core.o nf_nat_helper.o nf_nat_proto_unknown.o nf_nat_proto_tcp.o nf_nat_proto_udp.o nf_nat_proto_icmp.o
-ifneq ($(CONFIG_NF_NAT),)
+nf_nat-objs		:= nf_nat_core.o nf_nat_helper.o nf_nat_proto_unknown.o nf_nat_proto_tcp.o nf_nat_proto_udp.o nf_nat_proto_icmp.o
 iptable_nat-objs	:= nf_nat_rule.o nf_nat_standalone.o
-else
-iptable_nat-objs	:= ip_nat_rule.o ip_nat_standalone.o
-endif
-
-ip_conntrack_pptp-objs	:= ip_conntrack_helper_pptp.o ip_conntrack_proto_gre.o
-ip_nat_pptp-objs	:= ip_nat_helper_pptp.o ip_nat_proto_gre.o
-
-ip_conntrack_h323-objs := ip_conntrack_helper_h323.o ../../netfilter/nf_conntrack_h323_asn1.o
-ip_nat_h323-objs := ip_nat_helper_h323.o
 
 # connection tracking
-obj-$(CONFIG_IP_NF_CONNTRACK) += ip_conntrack.o
 obj-$(CONFIG_NF_CONNTRACK_IPV4) += nf_conntrack_ipv4.o
 
-obj-$(CONFIG_IP_NF_NAT) += ip_nat.o
 obj-$(CONFIG_NF_NAT) += nf_nat.o
 
-# conntrack netlink interface
-obj-$(CONFIG_IP_NF_CONNTRACK_NETLINK) += ip_conntrack_netlink.o
-
-
-# SCTP protocol connection tracking
-obj-$(CONFIG_IP_NF_CT_PROTO_SCTP) += ip_conntrack_proto_sctp.o
-
-# connection tracking helpers
-obj-$(CONFIG_IP_NF_H323) += ip_conntrack_h323.o
-obj-$(CONFIG_IP_NF_PPTP) += ip_conntrack_pptp.o
-obj-$(CONFIG_IP_NF_AMANDA) += ip_conntrack_amanda.o
-obj-$(CONFIG_IP_NF_TFTP) += ip_conntrack_tftp.o
-obj-$(CONFIG_IP_NF_FTP) += ip_conntrack_ftp.o
-obj-$(CONFIG_IP_NF_IRC) += ip_conntrack_irc.o
-obj-$(CONFIG_IP_NF_SIP) += ip_conntrack_sip.o
-obj-$(CONFIG_IP_NF_NETBIOS_NS) += ip_conntrack_netbios_ns.o
-
-# NAT helpers (ip_conntrack)
-obj-$(CONFIG_IP_NF_NAT_H323) += ip_nat_h323.o
-obj-$(CONFIG_IP_NF_NAT_PPTP) += ip_nat_pptp.o
-obj-$(CONFIG_IP_NF_NAT_AMANDA) += ip_nat_amanda.o
-obj-$(CONFIG_IP_NF_NAT_TFTP) += ip_nat_tftp.o
-obj-$(CONFIG_IP_NF_NAT_FTP) += ip_nat_ftp.o
-obj-$(CONFIG_IP_NF_NAT_IRC) += ip_nat_irc.o
-obj-$(CONFIG_IP_NF_NAT_SIP) += ip_nat_sip.o
-
 # NAT helpers (nf_conntrack)
 obj-$(CONFIG_NF_NAT_AMANDA) += nf_nat_amanda.o
 obj-$(CONFIG_NF_NAT_FTP) += nf_nat_ftp.o
@@ -78,7 +37,6 @@ obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
 # the three instances of ip_tables
 obj-$(CONFIG_IP_NF_FILTER) += iptable_filter.o
 obj-$(CONFIG_IP_NF_MANGLE) += iptable_mangle.o
-obj-$(CONFIG_IP_NF_NAT) += iptable_nat.o
 obj-$(CONFIG_NF_NAT) += iptable_nat.o
 obj-$(CONFIG_IP_NF_RAW) += iptable_raw.o
 
@@ -100,7 +58,6 @@ obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o
 obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
 obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o
 obj-$(CONFIG_IP_NF_TARGET_SAME) += ipt_SAME.o
-obj-$(CONFIG_IP_NF_NAT_SNMP_BASIC) += ip_nat_snmp_basic.o
 obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o
 obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o
 obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o

net/ipv4/netfilter/ip_conntrack_amanda.c

-/* Amanda extension for IP connection tracking, Version 0.2
- * (C) 2002 by Brian J. Murrell <netfilter@interlinx.bc.ca>
- * based on HW's ip_conntrack_irc.c as well as other modules
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- *
- *	Module load syntax:
- * 	insmod ip_conntrack_amanda.o [master_timeout=n]
- *
- *	Where master_timeout is the timeout (in seconds) of the master
- *	connection (port 10080).  This defaults to 5 minutes but if
- *	your clients take longer than 5 minutes to do their work
- *	before getting back to the Amanda server, you can increase
- *	this value.
- *
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/textsearch.h>
-#include <linux/skbuff.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_amanda.h>
-
-static unsigned int master_timeout = 300;
-static char *ts_algo = "kmp";
-
-MODULE_AUTHOR("Brian J. Murrell <netfilter@interlinx.bc.ca>");
-MODULE_DESCRIPTION("Amanda connection tracking module");
-MODULE_LICENSE("GPL");
-module_param(master_timeout, uint, 0600);
-MODULE_PARM_DESC(master_timeout, "timeout for the master connection");
-module_param(ts_algo, charp, 0400);
-MODULE_PARM_DESC(ts_algo, "textsearch algorithm to use (default kmp)");
-
-unsigned int (*ip_nat_amanda_hook)(struct sk_buff **pskb,
-				   enum ip_conntrack_info ctinfo,
-				   unsigned int matchoff,
-				   unsigned int matchlen,
-				   struct ip_conntrack_expect *exp);
-EXPORT_SYMBOL_GPL(ip_nat_amanda_hook);
-
-enum amanda_strings {
-	SEARCH_CONNECT,
-	SEARCH_NEWLINE,
-	SEARCH_DATA,
-	SEARCH_MESG,
-	SEARCH_INDEX,
-};
-
-static struct {
-	char			*string;
-	size_t			len;
-	struct ts_config	*ts;
-} search[] = {
-	[SEARCH_CONNECT] = {
-		.string	= "CONNECT ",
-		.len	= 8,
-	},
-	[SEARCH_NEWLINE] = {
-		.string	= "\n",
-		.len	= 1,
-	},
-	[SEARCH_DATA] = {
-		.string	= "DATA ",
-		.len	= 5,
-	},
-	[SEARCH_MESG] = {
-		.string	= "MESG ",
-		.len	= 5,
-	},
-	[SEARCH_INDEX] = {
-		.string = "INDEX ",
-		.len	= 6,
-	},
-};
-
-static int help(struct sk_buff **pskb,
-		struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-{
-	struct ts_state ts;
-	struct ip_conntrack_expect *exp;
-	unsigned int dataoff, start, stop, off, i;
-	char pbuf[sizeof("65535")], *tmp;
-	u_int16_t port, len;
-	int ret = NF_ACCEPT;
-	typeof(ip_nat_amanda_hook) ip_nat_amanda;
-
-	/* Only look at packets from the Amanda server */
-	if (CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL)
-		return NF_ACCEPT;
-
-	/* increase the UDP timeout of the master connection as replies from
-	 * Amanda clients to the server can be quite delayed */
-	ip_ct_refresh(ct, *pskb, master_timeout * HZ);
-
-	/* No data? */
-	dataoff = ip_hdrlen(*pskb) + sizeof(struct udphdr);
-	if (dataoff >= (*pskb)->len) {
-		if (net_ratelimit())
-			printk("amanda_help: skblen = %u\n", (*pskb)->len);
-		return NF_ACCEPT;
-	}
-
-	memset(&ts, 0, sizeof(ts));
-	start = skb_find_text(*pskb, dataoff, (*pskb)->len,
-			      search[SEARCH_CONNECT].ts, &ts);
-	if (start == UINT_MAX)
-		goto out;
-	start += dataoff + search[SEARCH_CONNECT].len;
-
-	memset(&ts, 0, sizeof(ts));
-	stop = skb_find_text(*pskb, start, (*pskb)->len,
-			     search[SEARCH_NEWLINE].ts, &ts);
-	if (stop == UINT_MAX)
-		goto out;
-	stop += start;
-
-	for (i = SEARCH_DATA; i <= SEARCH_INDEX; i++) {
-		memset(&ts, 0, sizeof(ts));
-		off = skb_find_text(*pskb, start, stop, search[i].ts, &ts);
-		if (off == UINT_MAX)
-			continue;
-		off += start + search[i].len;
-
-		len = min_t(unsigned int, sizeof(pbuf) - 1, stop - off);
-		if (skb_copy_bits(*pskb, off, pbuf, len))
-			break;
-		pbuf[len] = '\0';
-
-		port = simple_strtoul(pbuf, &tmp, 10);
-		len = tmp - pbuf;
-		if (port == 0 || len > 5)
-			break;
-
-		exp = ip_conntrack_expect_alloc(ct);
-		if (exp == NULL) {
-			ret = NF_DROP;
-			goto out;
-		}
-
-		exp->expectfn = NULL;
-		exp->flags = 0;
-
-		exp->tuple.src.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-		exp->tuple.src.u.tcp.port = 0;
-		exp->tuple.dst.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-		exp->tuple.dst.protonum = IPPROTO_TCP;
-		exp->tuple.dst.u.tcp.port = htons(port);
-
-		exp->mask.src.ip = htonl(0xFFFFFFFF);
-		exp->mask.src.u.tcp.port = 0;
-		exp->mask.dst.ip = htonl(0xFFFFFFFF);
-		exp->mask.dst.protonum = 0xFF;
-		exp->mask.dst.u.tcp.port = htons(0xFFFF);
-
-		/* RCU read locked by nf_hook_slow */
-		ip_nat_amanda = rcu_dereference(ip_nat_amanda_hook);
-		if (ip_nat_amanda)
-			ret = ip_nat_amanda(pskb, ctinfo, off - dataoff,
-					    len, exp);
-		else if (ip_conntrack_expect_related(exp) != 0)
-			ret = NF_DROP;
-		ip_conntrack_expect_put(exp);
-	}
-
-out:
-	return ret;
-}
-
-static struct ip_conntrack_helper amanda_helper = {
-	.max_expected = 3,
-	.timeout = 180,
-	.me = THIS_MODULE,
-	.help = help,
-	.name = "amanda",
-
-	.tuple = { .src = { .u = { .udp = {.port = __constant_htons(10080) } } },
-		   .dst = { .protonum = IPPROTO_UDP },
-	},
-	.mask = { .src = { .u = { 0xFFFF } },
-		 .dst = { .protonum = 0xFF },
-	},
-};
-
-static void __exit ip_conntrack_amanda_fini(void)
-{
-	int i;
-
-	ip_conntrack_helper_unregister(&amanda_helper);
-	for (i = 0; i < ARRAY_SIZE(search); i++)
-		textsearch_destroy(search[i].ts);
-}
-
-static int __init ip_conntrack_amanda_init(void)
-{
-	int ret, i;
-
-	ret = -ENOMEM;
-	for (i = 0; i < ARRAY_SIZE(search); i++) {
-		search[i].ts = textsearch_prepare(ts_algo, search[i].string,
-						  search[i].len,
-						  GFP_KERNEL, TS_AUTOLOAD);
-		if (search[i].ts == NULL)
-			goto err;
-	}
-	ret = ip_conntrack_helper_register(&amanda_helper);
-	if (ret < 0)
-		goto err;
-	return 0;
-
-err:
-	for (; i >= 0; i--) {
-		if (search[i].ts)
-			textsearch_destroy(search[i].ts);
-	}
-	return ret;
-}
-
-module_init(ip_conntrack_amanda_init);
-module_exit(ip_conntrack_amanda_fini);

net/ipv4/netfilter/ip_conntrack_irc.c

-/* IRC extension for IP connection tracking, Version 1.21
- * (C) 2000-2002 by Harald Welte <laforge@gnumonks.org>
- * based on RR's ip_conntrack_ftp.c
- *
- * ip_conntrack_irc.c,v 1.21 2002/02/05 14:49:26 laforge Exp
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- **
- *	Module load syntax:
- * 	insmod ip_conntrack_irc.o ports=port1,port2,...port<MAX_PORTS>
- *			    max_dcc_channels=n dcc_timeout=secs
- *
- * 	please give the ports of all IRC servers You wish to connect to.
- *	If You don't specify ports, the default will be port 6667.
- *	With max_dcc_channels you can define the maximum number of not
- *	yet answered DCC channels per IRC session (default 8).
- *	With dcc_timeout you can specify how long the system waits for
- *	an expected DCC channel (default 300 seconds).
- *
- */
-
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_irc.h>
-#include <linux/moduleparam.h>
-
-#define MAX_PORTS 8
-static unsigned short ports[MAX_PORTS];
-static int ports_c;
-static unsigned int max_dcc_channels = 8;
-static unsigned int dcc_timeout = 300;
-/* This is slow, but it's simple. --RR */
-static char *irc_buffer;
-static DEFINE_SPINLOCK(irc_buffer_lock);
-
-unsigned int (*ip_nat_irc_hook)(struct sk_buff **pskb,
-				enum ip_conntrack_info ctinfo,
-				unsigned int matchoff,
-				unsigned int matchlen,
-				struct ip_conntrack_expect *exp);
-EXPORT_SYMBOL_GPL(ip_nat_irc_hook);
-
-MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
-MODULE_DESCRIPTION("IRC (DCC) connection tracking helper");
-MODULE_LICENSE("GPL");
-module_param_array(ports, ushort, &ports_c, 0400);
-MODULE_PARM_DESC(ports, "port numbers of IRC servers");
-module_param(max_dcc_channels, uint, 0400);
-MODULE_PARM_DESC(max_dcc_channels, "max number of expected DCC channels per IRC session");
-module_param(dcc_timeout, uint, 0400);
-MODULE_PARM_DESC(dcc_timeout, "timeout on for unestablished DCC channels");
-
-static const char *dccprotos[] = { "SEND ", "CHAT ", "MOVE ", "TSEND ", "SCHAT " };
-#define MINMATCHLEN	5
-
-#if 0
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s:" format, \
-				       __FILE__, __FUNCTION__ , ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-static int parse_dcc(char *data, char *data_end, u_int32_t *ip,
-		     u_int16_t *port, char **ad_beg_p, char **ad_end_p)
-/* tries to get the ip_addr and port out of a dcc command
-   return value: -1 on failure, 0 on success
-	data		pointer to first byte of DCC command data
-	data_end	pointer to last byte of dcc command data
-	ip		returns parsed ip of dcc command
-	port		returns parsed port of dcc command
-	ad_beg_p	returns pointer to first byte of addr data
-	ad_end_p	returns pointer to last byte of addr data */
-{
-
-	/* at least 12: "AAAAAAAA P\1\n" */
-	while (*data++ != ' ')
-		if (data > data_end - 12)
-			return -1;
-
-	*ad_beg_p = data;
-	*ip = simple_strtoul(data, &data, 10);
-
-	/* skip blanks between ip and port */
-	while (*data == ' ') {
-		if (data >= data_end)
-			return -1;
-		data++;
-	}
-
-	*port = simple_strtoul(data, &data, 10);
-	*ad_end_p = data;
-
-	return 0;
-}
-
-static int help(struct sk_buff **pskb,
-		struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-{
-	unsigned int dataoff;
-	struct tcphdr _tcph, *th;
-	char *data, *data_limit, *ib_ptr;
-	int dir = CTINFO2DIR(ctinfo);
-	struct ip_conntrack_expect *exp;
-	u32 seq;
-	u_int32_t dcc_ip;
-	u_int16_t dcc_port;
-	int i, ret = NF_ACCEPT;
-	char *addr_beg_p, *addr_end_p;
-	typeof(ip_nat_irc_hook) ip_nat_irc;
-
-	DEBUGP("entered\n");
-
-	/* If packet is coming from IRC server */
-	if (dir == IP_CT_DIR_REPLY)
-		return NF_ACCEPT;
-
-	/* Until there's been traffic both ways, don't look in packets. */
-	if (ctinfo != IP_CT_ESTABLISHED
-	    && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
-		DEBUGP("Conntrackinfo = %u\n", ctinfo);
-		return NF_ACCEPT;
-	}
-
-	/* Not a full tcp header? */
-	th = skb_header_pointer(*pskb, ip_hdrlen(*pskb),
-				sizeof(_tcph), &_tcph);
-	if (th == NULL)
-		return NF_ACCEPT;
-
-	/* No data? */
-	dataoff = ip_hdrlen(*pskb) + th->doff * 4;
-	if (dataoff >= (*pskb)->len)
-		return NF_ACCEPT;
-
-	spin_lock_bh(&irc_buffer_lock);
-	ib_ptr = skb_header_pointer(*pskb, dataoff,
-				    (*pskb)->len - dataoff, irc_buffer);
-	BUG_ON(ib_ptr == NULL);
-
-	data = ib_ptr;
-	data_limit = ib_ptr + (*pskb)->len - dataoff;
-
-	/* strlen("\1DCC SENT t AAAAAAAA P\1\n")=24
-	 * 5+MINMATCHLEN+strlen("t AAAAAAAA P\1\n")=14 */
-	while (data < (data_limit - (19 + MINMATCHLEN))) {
-		if (memcmp(data, "\1DCC ", 5)) {
-			data++;
-			continue;
-		}
-
-		data += 5;
-		/* we have at least (19+MINMATCHLEN)-5 bytes valid data left */
-
-		DEBUGP("DCC found in master %u.%u.%u.%u:%u %u.%u.%u.%u:%u...\n",
-			NIPQUAD(iph->saddr), ntohs(th->source),
-			NIPQUAD(iph->daddr), ntohs(th->dest));
-
-		for (i = 0; i < ARRAY_SIZE(dccprotos); i++) {
-			if (memcmp(data, dccprotos[i], strlen(dccprotos[i]))) {
-				/* no match */
-				continue;
-			}
-
-			DEBUGP("DCC %s detected\n", dccprotos[i]);
-			data += strlen(dccprotos[i]);
-			/* we have at least
-			 * (19+MINMATCHLEN)-5-dccprotos[i].matchlen bytes valid
-			 * data left (== 14/13 bytes) */
-			if (parse_dcc((char *)data, data_limit, &dcc_ip,
-				       &dcc_port, &addr_beg_p, &addr_end_p)) {
-				/* unable to parse */
-				DEBUGP("unable to parse dcc command\n");
-				continue;
-			}
-			DEBUGP("DCC bound ip/port: %u.%u.%u.%u:%u\n",
-				HIPQUAD(dcc_ip), dcc_port);
-
-			/* dcc_ip can be the internal OR external (NAT'ed) IP
-			 * Tiago Sousa <mirage@kaotik.org> */
-			if (ct->tuplehash[dir].tuple.src.ip != htonl(dcc_ip)
-			    && ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip != htonl(dcc_ip)) {
-				if (net_ratelimit())
-					printk(KERN_WARNING
-						"Forged DCC command from "
-						"%u.%u.%u.%u: %u.%u.%u.%u:%u\n",
-				NIPQUAD(ct->tuplehash[dir].tuple.src.ip),
-						HIPQUAD(dcc_ip), dcc_port);
-
-				continue;
-			}
-
-			exp = ip_conntrack_expect_alloc(ct);
-			if (exp == NULL) {
-				ret = NF_DROP;
-				goto out;
-			}
-
-			/* save position of address in dcc string,
-			 * necessary for NAT */
-			DEBUGP("tcph->seq = %u\n", th->seq);
-			seq = ntohl(th->seq) + (addr_beg_p - ib_ptr);
-
-			/* We refer to the reverse direction ("!dir")
-			 * tuples here, because we're expecting
-			 * something in the other * direction.
-			 * Doesn't matter unless NAT is happening.  */
-			exp->tuple = ((struct ip_conntrack_tuple)
-				{ { 0, { 0 } },
-				  { ct->tuplehash[!dir].tuple.dst.ip,
-				    { .tcp = { htons(dcc_port) } },
-				    IPPROTO_TCP }});
-			exp->mask = ((struct ip_conntrack_tuple)
-				{ { 0, { 0 } },
-				  { htonl(0xFFFFFFFF),
-					{ .tcp = { htons(0xFFFF) } }, 0xFF }});
-			exp->expectfn = NULL;
-			exp->flags = 0;
-			ip_nat_irc = rcu_dereference(ip_nat_irc_hook);
-			if (ip_nat_irc)
-				ret = ip_nat_irc(pskb, ctinfo,
-						 addr_beg_p - ib_ptr,
-						 addr_end_p - addr_beg_p,
-						 exp);
-			else if (ip_conntrack_expect_related(exp) != 0)
-				ret = NF_DROP;
-			ip_conntrack_expect_put(exp);
-			goto out;
-		} /* for .. NUM_DCCPROTO */
-	} /* while data < ... */
-
- out:
-	spin_unlock_bh(&irc_buffer_lock);
-	return ret;
-}
-
-static struct ip_conntrack_helper irc_helpers[MAX_PORTS];
-static char irc_names[MAX_PORTS][sizeof("irc-65535")];
-
-static void ip_conntrack_irc_fini(void);
-
-static int __init ip_conntrack_irc_init(void)
-{
-	int i, ret;
-	struct ip_conntrack_helper *hlpr;
-	char *tmpname;
-
-	if (max_dcc_channels < 1) {
-		printk("ip_conntrack_irc: max_dcc_channels must be a positive integer\n");
-		return -EBUSY;
-	}
-
-	irc_buffer = kmalloc(65536, GFP_KERNEL);
-	if (!irc_buffer)
-		return -ENOMEM;
-
-	/* If no port given, default to standard irc port */
-	if (ports_c == 0)
-		ports[ports_c++] = IRC_PORT;
-
-	for (i = 0; i < ports_c; i++) {
-		hlpr = &irc_helpers[i];
-		hlpr->tuple.src.u.tcp.port = htons(ports[i]);
-		hlpr->tuple.dst.protonum = IPPROTO_TCP;
-		hlpr->mask.src.u.tcp.port = htons(0xFFFF);
-		hlpr->mask.dst.protonum = 0xFF;
-		hlpr->max_expected = max_dcc_channels;
-		hlpr->timeout = dcc_timeout;
-		hlpr->me = THIS_MODULE;
-		hlpr->help = help;
-
-		tmpname = &irc_names[i][0];
-		if (ports[i] == IRC_PORT)
-			sprintf(tmpname, "irc");
-		else
-			sprintf(tmpname, "irc-%d", i);
-		hlpr->name = tmpname;
-
-		DEBUGP("port #%d: %d\n", i, ports[i]);
-
-		ret = ip_conntrack_helper_register(hlpr);
-
-		if (ret) {
-			printk("ip_conntrack_irc: ERROR registering port %d\n",
-				ports[i]);
-			ip_conntrack_irc_fini();
-			return -EBUSY;
-		}
-	}
-	return 0;
-}
-
-/* This function is intentionally _NOT_ defined as __exit, because
- * it is needed by the init function */
-static void ip_conntrack_irc_fini(void)
-{
-	int i;
-	for (i = 0; i < ports_c; i++) {
-		DEBUGP("unregistering port %d\n",
-		       ports[i]);
-		ip_conntrack_helper_unregister(&irc_helpers[i]);
-	}
-	kfree(irc_buffer);
-}
-
-module_init(ip_conntrack_irc_init);
-module_exit(ip_conntrack_irc_fini);

net/ipv4/netfilter/nf_nat_h323.c

@@ -33,7 +33,7 @@ static int set_addr(struct sk_buff **pskb,
 		    unsigned int addroff, __be32 ip, __be16 port)
 {
 	enum ip_conntrack_info ctinfo;
-	struct nf_conn *ct = ip_conntrack_get(*pskb, &ctinfo);
+	struct nf_conn *ct = nf_ct_get(*pskb, &ctinfo);
 	struct {
 		__be32 ip;
 		__be16 port;
@@ -383,7 +383,7 @@ static int nat_h245(struct sk_buff **pskb, struct nf_conn *ct,
 static void ip_nat_q931_expect(struct nf_conn *new,
 			       struct nf_conntrack_expect *this)
 {
-	struct ip_nat_range range;
+	struct nf_nat_range range;
 
 	if (this->tuple.src.u3.ip != 0) {	/* Only accept calls from GK */
 		nf_nat_follow_master(new, this);

net/ipv4/netfilter/nf_nat_pptp.c

@@ -53,7 +53,7 @@ static void pptp_nat_expected(struct nf_conn *ct,
 	struct nf_conntrack_tuple t;
 	struct nf_ct_pptp_master *ct_pptp_info;
 	struct nf_nat_pptp *nat_pptp_info;
-	struct ip_nat_range range;
+	struct nf_nat_range range;
 
 	ct_pptp_info = &nfct_help(master)->help.ct_pptp_info;
 	nat_pptp_info = &nfct_nat(master)->help.nat_pptp_info;

net/netfilter/xt_NOTRACK.c

@@ -5,7 +5,7 @@
 #include <linux/skbuff.h>
 
 #include <linux/netfilter/x_tables.h>
-#include <net/netfilter/nf_conntrack_compat.h>
+#include <net/netfilter/nf_conntrack.h>
 
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("ipt_NOTRACK");
@@ -26,7 +26,7 @@ target(struct sk_buff **pskb,
 	   If there is a real ct entry correspondig to this packet,
 	   it'll hang aroun till timing out. We don't deal with it
 	   for performance reasons. JK */
-	nf_ct_untrack(*pskb);
+	(*pskb)->nfct = &nf_conntrack_untracked.ct_general;
 	(*pskb)->nfctinfo = IP_CT_NEW;
 	nf_conntrack_get((*pskb)->nfct);