path: root/obsolete-buildroot/sources/openwrt-linux-netfilter.patch

diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack.h	2003-08-12 07:43:11.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack.h	2004-05-09 04:13:03.000000000 -0400
@@ -45,39 +45,27 @@
 
 #include <linux/netfilter_ipv4/ip_conntrack_tcp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_icmp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
 
 /* per conntrack: protocol private data */
 union ip_conntrack_proto {
 	/* insert conntrack proto private data here */
-	struct ip_ct_gre gre;
 	struct ip_ct_tcp tcp;
 	struct ip_ct_icmp icmp;
 };
 
 union ip_conntrack_expect_proto {
 	/* insert expect proto private data here */
-	struct ip_ct_gre_expect gre;
 };
 
 /* Add protocol helper include file here */
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_mms.h>
-#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
-
 #include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_irc.h>
-#include <linux/netfilter_ipv4/ip_autofw.h>
 
 /* per expectation: application helper private data */
 union ip_conntrack_expect_help {
 	/* insert conntrack helper private data (expect) here */
-	struct ip_ct_pptp_expect exp_pptp_info;
-	struct ip_ct_mms_expect exp_mms_info;
-	struct ip_ct_h225_expect exp_h225_info;
 	struct ip_ct_ftp_expect exp_ftp_info;
 	struct ip_ct_irc_expect exp_irc_info;
-	struct ip_autofw_expect exp_autofw_info;
 
 #ifdef CONFIG_IP_NF_NAT_NEEDED
 	union {
@@ -89,21 +77,16 @@
 /* per conntrack: application helper private data */
 union ip_conntrack_help {
 	/* insert conntrack helper private data (master) here */
-	struct ip_ct_pptp_master ct_pptp_info;
-	struct ip_ct_mms_master ct_mms_info;
-	struct ip_ct_h225_master ct_h225_info;
 	struct ip_ct_ftp_master ct_ftp_info;
 	struct ip_ct_irc_master ct_irc_info;
 };
 
 #ifdef CONFIG_IP_NF_NAT_NEEDED
 #include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_pptp.h>
 
 /* per conntrack: nat application helper private data */
 union ip_conntrack_nat_help {
 	/* insert nat helper private data here */
-	struct ip_nat_pptp nat_pptp_info;
 };
 #endif
 
@@ -275,9 +258,5 @@
 }
 
 extern unsigned int ip_conntrack_htable_size;
-
-/* connection tracking time out variables. */
-extern int sysctl_ip_conntrack_tcp_timeouts[10];
-extern int sysctl_ip_conntrack_udp_timeouts[2];
 #endif /* __KERNEL__ */
 #endif /* _IP_CONNTRACK_H */
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_h323.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_h323.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_h323.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_h323.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,30 +0,0 @@
-#ifndef _IP_CONNTRACK_H323_H
-#define _IP_CONNTRACK_H323_H
-/* H.323 connection tracking. */
-
-#ifdef __KERNEL__
-/* Protects H.323 related data */
-DECLARE_LOCK_EXTERN(ip_h323_lock);
-#endif
-
-/* Default H.225 port */
-#define H225_PORT	1720
-
-/* This structure is per expected connection */
-struct ip_ct_h225_expect {
-	u_int16_t port;			/* Port of the H.225 helper/RTCP/RTP channel */
-	enum ip_conntrack_dir dir;	/* Direction of the original connection */
-	unsigned int offset;		/* offset of the address in the payload */
-};
-
-/* This structure exists only once per master */
-struct ip_ct_h225_master {
-	int is_h225;				/* H.225 or H.245 connection */
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-	enum ip_conntrack_dir dir;		/* Direction of the original connection */
-	u_int32_t seq[IP_CT_DIR_MAX];		/* Exceptional packet mangling for signal addressess... */
-	unsigned int offset[IP_CT_DIR_MAX];	/* ...and the offset of the addresses in the payload */
-#endif
-};
-
-#endif /* _IP_CONNTRACK_H323_H */
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_mms.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_mms.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_mms.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_mms.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,31 +0,0 @@
-#ifndef _IP_CONNTRACK_MMS_H
-#define _IP_CONNTRACK_MMS_H
-/* MMS tracking. */
-
-#ifdef __KERNEL__
-#include <linux/netfilter_ipv4/lockhelp.h>
-
-DECLARE_LOCK_EXTERN(ip_mms_lock);
-
-#define MMS_PORT                         1755
-#define MMS_SRV_MSG_ID                   196610
-
-#define MMS_SRV_MSG_OFFSET               36
-#define MMS_SRV_UNICODE_STRING_OFFSET    60
-#define MMS_SRV_CHUNKLENLV_OFFSET        16
-#define MMS_SRV_CHUNKLENLM_OFFSET        32
-#define MMS_SRV_MESSAGELENGTH_OFFSET     8
-#endif
-
-/* This structure is per expected connection */
-struct ip_ct_mms_expect {
-	u_int32_t len;
-	u_int32_t padding;
-	u_int16_t port;
-};
-
-/* This structure exists only once per master */
-struct ip_ct_mms_master {
-};
-
-#endif /* _IP_CONNTRACK_MMS_H */
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_pptp.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_pptp.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_pptp.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_pptp.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,313 +0,0 @@
-/* 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 */
-	u_int16_t pac_call_id;			/* call id of PAC, host byte order */
-	u_int16_t pns_call_id;			/* call id of PNS, host byte order */
-};
-
-/* conntrack_expect private member */
-struct ip_ct_pptp_expect {
-	enum pptp_ctrlcall_state cstate; 	/* call state */
-	u_int16_t pac_call_id;			/* call id of PAC */
-	u_int16_t pns_call_id;			/* call id of PNS */
-};
-
-
-#ifdef __KERNEL__
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-DECLARE_LOCK_EXTERN(ip_pptp_lock);
-
-#define IP_CONNTR_PPTP		PPTP_CONTROL_PORT
-
-union pptp_ctrl_union {
-                void				*rawreq;
-		struct PptpStartSessionRequest	*sreq;
-		struct PptpStartSessionReply	*srep;
-		struct PptpStopSessionReqest	*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;
-};
-
-
-
-#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;
-	__u16	packetType;
-	__u32	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 {
-	__u16	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 {
-	__u16	protocolVersion;
-	__u8	reserved1;
-	__u8	reserved2;
-	__u32	framingCapability;
-	__u32	bearerCapability;
-	__u16	maxChannels;
-	__u16	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 {
-	__u16	protocolVersion;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__u32	framingCapability;
-	__u32	bearerCapability;
-	__u16	maxChannels;
-	__u16	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;
-};
-
-/* PptpStopSessionResultCode */
-#define PPTP_STOP_OK			1
-#define PPTP_STOP_GENERAL_ERROR		2
-
-struct PptpStopSessionReply {
-	__u8	resultCode;
-	__u8	generalErrorCode;
-};
-
-struct PptpEchoRequest {
-	__u32 identNumber;
-};
-
-/* PptpEchoReplyResultCode */
-#define PPTP_ECHO_OK			1
-#define PPTP_ECHO_GENERAL_ERROR		2
-
-struct PptpEchoReply {
-	__u32	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 {
-	__u16	callID;
-	__u16	callSerialNumber;
-	__u32	minBPS;
-	__u32	maxBPS;
-	__u32	bearerType;
-	__u32	framingType;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
-	__u16	reserved1;
-	__u16	phoneNumberLength;
-	__u16	reserved2;
-	__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 {
-	__u16	callID;
-	__u16	peersCallID;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__u16	causeCode;
-	__u32	connectSpeed;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
-	__u32	physChannelID;
-};
-
-struct PptpInCallRequest {
-	__u16	callID;
-	__u16	callSerialNumber;
-	__u32	callBearerType;
-	__u32	physChannelID;
-	__u16	dialedNumberLength;
-	__u16	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 {
-	__u16	callID;
-	__u16	peersCallID;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
-	__u16	reserved;
-};
-
-struct PptpInCallConnected {
-	__u16	peersCallID;
-	__u16	reserved;
-	__u32	connectSpeed;
-	__u16	packetWindow;
-	__u16	packetProcDelay;
-	__u32	callFramingType;
-};
-
-struct PptpClearCallRequest {
-	__u16	callID;
-	__u16	reserved;
-};
-
-struct PptpCallDisconnectNotify {
-	__u16	callID;
-	__u8	resultCode;
-	__u8	generalErrorCode;
-	__u16	causeCode;
-	__u16	reserved;
-	__u8	callStatistics[128];
-};
-
-struct PptpWanErrorNotify {
-	__u16	peersCallID;
-	__u16	reserved;
-	__u32	crcErrors;
-	__u32	framingErrors;
-	__u32	hardwareOverRuns;
-	__u32	bufferOverRuns;
-	__u32	timeoutErrors;
-	__u32	alignmentErrors;
-};
-
-struct PptpSetLinkInfo {
-	__u16	peersCallID;
-	__u16	reserved;
-	__u32	sendAccm;
-	__u32	recvAccm;
-};
-
-
-struct pptp_priv_data {
-	__u16	call_id;
-	__u16	mcall_id;
-	__u16	pcall_id;
-};
-
-#endif /* __KERNEL__ */
-#endif /* _CONNTRACK_PPTP_H */
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,121 +0,0 @@
-#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
-	__u16	protocol;
-};
-
-/* modified GRE header for PPTP */
-struct gre_hdr_pptp {
-	__u8  flags;		/* bitfield */
-	__u8  version;		/* should be GRE_VERSION_PPTP */
-	__u16 protocol;		/* should be GRE_PROTOCOL_PPTP */
-	__u16 payload_len;	/* size of ppp payload, not inc. gre header */
-	__u16 call_id;		/* peer's call_id for this session */
-	__u32 seq;		/* sequence number.  Present if S==1 */
-	__u32 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;
-};
-
-/* this is part of ip_conntrack_expect */
-struct ip_ct_gre_expect {
-	struct ip_ct_gre_keymap *keymap_orig, *keymap_reply;
-};
-
-#ifdef __KERNEL__
-
-/* structure for original <-> reply keymap */
-struct ip_ct_gre_keymap {
-	struct list_head list;
-
-	struct ip_conntrack_tuple tuple;
-	struct ip_conntrack_expect *master;
-};
-
-
-/* add new tuple->key_reply pair to keymap */
-int ip_ct_gre_keymap_add(struct ip_conntrack_expect *exp,
-			 struct ip_conntrack_tuple *t,
-			 int reply);
-
-/* change an existing keymap entry */
-void ip_ct_gre_keymap_change(struct ip_ct_gre_keymap *km,
-			     struct ip_conntrack_tuple *t);
-
-
-
-/* get pointer to gre key, if present */
-static inline u_int32_t *gre_key(struct gre_hdr *greh)
-{
-	if (!greh->key)
-		return NULL;
-	if (greh->csum || greh->routing)
-		return (u_int32_t *) (greh+sizeof(*greh)+4);
-	return (u_int32_t *) (greh+sizeof(*greh));
-}
-
-/* get pointer ot gre csum, if present */
-static inline u_int16_t *gre_csum(struct gre_hdr *greh)
-{
-	if (!greh->csum)
-		return NULL;
-	return (u_int16_t *) (greh+sizeof(*greh));
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* _CONNTRACK_PROTO_GRE_H */
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_tftp.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_tftp.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_tftp.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_tftp.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,13 +0,0 @@
-#ifndef _IP_CT_TFTP
-#define _IP_CT_TFTP
-
-#define TFTP_PORT 69
-
-struct tftphdr {
-	u_int16_t opcode;
-};
-
-#define TFTP_OPCODE_READ	1
-#define TFTP_OPCODE_WRITE	2
-
-#endif /* _IP_CT_TFTP */
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_tuple.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_tuple.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_conntrack_tuple.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_conntrack_tuple.h	2004-05-09 04:13:03.000000000 -0400
@@ -14,7 +14,7 @@
 union ip_conntrack_manip_proto
 {
 	/* Add other protocols here. */
-	u_int32_t all;
+	u_int16_t all;
 
 	struct {
 		u_int16_t port;
@@ -25,9 +25,6 @@
 	struct {
 		u_int16_t id;
 	} icmp;
-	struct {
-		u_int32_t key;
-	} gre;
 };
 
 /* The manipulable part of the tuple. */
@@ -47,7 +44,7 @@
 		u_int32_t ip;
 		union {
 			/* Add other protocols here. */
-			u_int64_t all;
+			u_int16_t all;
 
 			struct {
 				u_int16_t port;
@@ -58,11 +55,6 @@
 			struct {
 				u_int8_t type, code;
 			} icmp;
-			struct {
-				u_int16_t protocol;
-				u_int8_t version;
-				u_int32_t key;
-			} gre;
 		} u;
 
 		/* The protocol. */
@@ -80,16 +72,10 @@
 #ifdef __KERNEL__
 
 #define DUMP_TUPLE(tp)						\
-DEBUGP("tuple %p: %u %u.%u.%u.%u:%u -> %u.%u.%u.%u:%u\n",	\
+DEBUGP("tuple %p: %u %u.%u.%u.%u:%hu -> %u.%u.%u.%u:%hu\n",	\
        (tp), (tp)->dst.protonum,				\
-       NIPQUAD((tp)->src.ip), ntohl((tp)->src.u.all),		\
-       NIPQUAD((tp)->dst.ip), ntohl((tp)->dst.u.all))
-
-#define DUMP_TUPLE_RAW(x) 						\
-	DEBUGP("tuple %p: %u %u.%u.%u.%u:0x%08x -> %u.%u.%u.%u:0x%08x\n",\
-	(x), (x)->dst.protonum,						\
-	NIPQUAD((x)->src.ip), ntohl((x)->src.u.all), 			\
-	NIPQUAD((x)->dst.ip), ntohl((x)->dst.u.all))
+       NIPQUAD((tp)->src.ip), ntohs((tp)->src.u.all),		\
+       NIPQUAD((tp)->dst.ip), ntohs((tp)->dst.u.all))
 
 #define CTINFO2DIR(ctinfo) ((ctinfo) >= IP_CT_IS_REPLY ? IP_CT_DIR_REPLY : IP_CT_DIR_ORIGINAL)
 
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_nat_pptp.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_nat_pptp.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_nat_pptp.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_nat_pptp.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,11 +0,0 @@
-/* PPTP constants and structs */
-#ifndef _NAT_PPTP_H
-#define _NAT_PPTP_H
-
-/* conntrack private data */
-struct ip_nat_pptp {
-	u_int16_t pns_call_id;		/* NAT'ed PNS call id */
-	u_int16_t pac_call_id;		/* NAT'ed PAC call id */
-};
-
-#endif /* _NAT_PPTP_H */
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ip_pool.h src/linux/linux.stock/include/linux/netfilter_ipv4/ip_pool.h
--- src/linux/linux/include/linux/netfilter_ipv4/ip_pool.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ip_pool.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,64 +0,0 @@
-#ifndef _IP_POOL_H
-#define _IP_POOL_H
-
-/***************************************************************************/
-/*  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.					   */
-/*									   */
-/*  This program is distributed in the hope that it will be useful,	   */
-/*  but WITHOUT ANY WARRANTY; without even the implied warranty of	   */
-/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the	   */
-/*  GNU General Public License for more details.			   */
-/*									   */
-/*  You should have received a copy of the GNU General Public License	   */
-/*  along with this program; if not, write to the Free Software	       	   */
-/*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA*/
-/***************************************************************************/
-
-/* A sockopt of such quality has hardly ever been seen before on the open
- * market!  This little beauty, hardly ever used: above 64, so it's
- * traditionally used for firewalling, not touched (even once!) by the
- * 2.0, 2.2 and 2.4 kernels!
- *
- * Comes with its own certificate of authenticity, valid anywhere in the
- * Free world!
- *
- * Rusty, 19.4.2000
- */
-#define SO_IP_POOL 81
-
-typedef int ip_pool_t;			/* pool index */
-#define IP_POOL_NONE	((ip_pool_t)-1)
-
-struct ip_pool_request {
-	int op;
-	ip_pool_t index;
-	u_int32_t addr;
-	u_int32_t addr2;
-};
-
-/* NOTE: I deliberately break the first cut ippool utility. Nobody uses it. */
-
-#define IP_POOL_BAD001		0x00000010
-
-#define IP_POOL_FLUSH		0x00000011	/* req.index, no arguments */
-#define IP_POOL_INIT		0x00000012	/* from addr to addr2 incl. */
-#define IP_POOL_DESTROY		0x00000013	/* req.index, no arguments */
-#define IP_POOL_ADD_ADDR	0x00000014	/* add addr to pool */
-#define IP_POOL_DEL_ADDR	0x00000015	/* del addr from pool */
-#define IP_POOL_HIGH_NR		0x00000016	/* result in req.index */
-#define IP_POOL_LOOKUP		0x00000017	/* result in addr and addr2 */
-#define IP_POOL_USAGE		0x00000018	/* result in addr */
-#define IP_POOL_TEST_ADDR	0x00000019	/* result (0/1) returned */
-
-#ifdef __KERNEL__
-
-/* NOTE: ip_pool_match() and ip_pool_mod() expect ADDR to be host byte order */
-extern int ip_pool_match(ip_pool_t pool, u_int32_t addr);
-extern int ip_pool_mod(ip_pool_t pool, u_int32_t addr, int isdel);
-
-#endif
-
-#endif /*_IP_POOL_H*/
diff -Nurb src/linux/linux/include/linux/netfilter_ipv4/ipt_pool.h src/linux/linux.stock/include/linux/netfilter_ipv4/ipt_pool.h
--- src/linux/linux/include/linux/netfilter_ipv4/ipt_pool.h	2003-07-04 04:12:27.000000000 -0400
+++ src/linux/linux.stock/include/linux/netfilter_ipv4/ipt_pool.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,25 +0,0 @@
-#ifndef _IPT_POOL_H
-#define _IPT_POOL_H
-
-#include <linux/netfilter_ipv4/ip_pool.h>
-
-#define IPT_POOL_INV_SRC	0x00000001
-#define IPT_POOL_INV_DST	0x00000002
-#define IPT_POOL_DEL_SRC	0x00000004
-#define IPT_POOL_DEL_DST	0x00000008
-#define IPT_POOL_INV_MOD_SRC	0x00000010
-#define IPT_POOL_INV_MOD_DST	0x00000020
-#define IPT_POOL_MOD_SRC_ACCEPT	0x00000040
-#define IPT_POOL_MOD_DST_ACCEPT	0x00000080
-#define IPT_POOL_MOD_SRC_DROP	0x00000100
-#define IPT_POOL_MOD_DST_DROP	0x00000200
-
-/* match info */
-struct ipt_pool_info
-{
-	ip_pool_t src;
-	ip_pool_t dst;
-	unsigned flags;
-};
-
-#endif /*_IPT_POOL_H*/
diff -Nurb src/linux/linux/net/ipv4/netfilter/Config.in src/linux/linux.stock/net/ipv4/netfilter/Config.in
--- src/linux/linux/net/ipv4/netfilter/Config.in	2004-02-19 06:04:35.000000000 -0500
+++ src/linux/linux.stock/net/ipv4/netfilter/Config.in	2004-05-09 04:13:03.000000000 -0400
@@ -7,12 +7,7 @@
 tristate 'Connection tracking (required for masq/NAT)' CONFIG_IP_NF_CONNTRACK
 if [ "$CONFIG_IP_NF_CONNTRACK" != "n" ]; then
   dep_tristate '  FTP protocol support' CONFIG_IP_NF_FTP $CONFIG_IP_NF_CONNTRACK
-  dep_tristate '  TFTP protocol support' CONFIG_IP_NF_TFTP $CONFIG_IP_NF_CONNTRACK
-  dep_tristate '  H.323 (netmeeting) support' CONFIG_IP_NF_H323 $CONFIG_IP_NF_CONNTRACK
   dep_tristate '  IRC protocol support' CONFIG_IP_NF_IRC $CONFIG_IP_NF_CONNTRACK
-  dep_tristate '  MMS protocol support' CONFIG_IP_NF_MMS $CONFIG_IP_NF_CONNTRACK
-  dep_tristate '  GRE protocol support' CONFIG_IP_NF_CT_PROTO_GRE $CONFIG_IP_NF_CONNTRACK
-  dep_tristate '   PPTP protocol support' CONFIG_IP_NF_PPTP $CONFIG_IP_NF_CT_PROTO_GRE
 fi
 
 if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
@@ -22,19 +17,11 @@
 if [ "$CONFIG_IP_NF_IPTABLES" != "n" ]; then
 # The simple matches.
   dep_tristate '  limit match support' CONFIG_IP_NF_MATCH_LIMIT $CONFIG_IP_NF_IPTABLES
-
-  dep_tristate '  IP address pool support' CONFIG_IP_NF_POOL $CONFIG_IP_NF_IPTABLES
-  if [ "$CONFIG_IP_NF_POOL" = "y" -o "$CONFIG_IP_NF_POOL" = "m" ]; then
-    bool '    enable statistics on pool usage' CONFIG_IP_POOL_STATISTICS n
-  fi
-
   dep_tristate '  MAC address match support' CONFIG_IP_NF_MATCH_MAC $CONFIG_IP_NF_IPTABLES
   dep_tristate '  Packet type match support' CONFIG_IP_NF_MATCH_PKTTYPE $CONFIG_IP_NF_IPTABLES
   dep_tristate '  netfilter MARK match support' CONFIG_IP_NF_MATCH_MARK $CONFIG_IP_NF_IPTABLES
   dep_tristate '  Multiple port match support' CONFIG_IP_NF_MATCH_MULTIPORT $CONFIG_IP_NF_IPTABLES
-  dep_tristate '  Multiple port with ranges match support' CONFIG_IP_NF_MATCH_MPORT $CONFIG_IP_NF_IPTABLES
   dep_tristate '  TOS match support' CONFIG_IP_NF_MATCH_TOS $CONFIG_IP_NF_IPTABLES
-  dep_tristate '  TIME match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_TIME $CONFIG_IP_NF_IPTABLES
   dep_tristate '  ECN match support' CONFIG_IP_NF_MATCH_ECN $CONFIG_IP_NF_IPTABLES
  
   dep_tristate '  DSCP match support' CONFIG_IP_NF_MATCH_DSCP $CONFIG_IP_NF_IPTABLES
@@ -52,7 +39,6 @@
   fi
   if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
     dep_tristate '  Unclean match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_UNCLEAN $CONFIG_IP_NF_IPTABLES
-    dep_tristate '  Webstr match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_WEBSTR $CONFIG_IP_NF_IPTABLES
     dep_tristate '  Owner match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_OWNER $CONFIG_IP_NF_IPTABLES
   fi
 # The targets
@@ -70,29 +56,6 @@
       define_bool CONFIG_IP_NF_NAT_NEEDED y
       dep_tristate '    MASQUERADE target support' CONFIG_IP_NF_TARGET_MASQUERADE $CONFIG_IP_NF_NAT
       dep_tristate '    REDIRECT target support' CONFIG_IP_NF_TARGET_REDIRECT $CONFIG_IP_NF_NAT
-      dep_tristate '    Automatic port forwarding (autofw) target support' CONFIG_IP_NF_AUTOFW $CONFIG_IP_NF_NAT
-      dep_tristate '    TRIGGER target support (port-trigger)' CONFIG_IP_NF_TARGET_TRIGGER $CONFIG_IP_NF_NAT
-      if [ "$CONFIG_IP_NF_H323" = "m" ]; then
-       define_tristate CONFIG_IP_NF_NAT_H323 m
-      else
-        if [ "$CONFIG_IP_NF_H323" = "y" ]; then
-          define_tristate CONFIG_IP_NF_NAT_H323 $CONFIG_IP_NF_NAT
-        fi
-      fi
-      if [ "$CONFIG_IP_NF_PPTP" = "m" ]; then
-        define_tristate CONFIG_IP_NF_NAT_PPTP m
-      else
-        if [ "$CONFIG_IP_NF_PPTP" = "y" ]; then
-          define_tristate CONFIG_IP_NF_NAT_PPTP $CONFIG_IP_NF_NAT
-        fi
-      fi
-      if [ "$CONFIG_IP_NF_CT_PROTO_GRE" = "m" ]; then
-        define_tristate CONFIG_IP_NF_NAT_PROTO_GRE m
-      else
-        if [ "$CONFIG_IP_NF_CT_PROTO_GRE" = "y" ]; then
-          define_tristate CONFIG_IP_NF_NAT_PROTO_GRE $CONFIG_IP_NF_NAT
-        fi
-      fi
       bool '    NAT of local connections (READ HELP)' CONFIG_IP_NF_NAT_LOCAL
       if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
         dep_tristate '    Basic SNMP-ALG support (EXPERIMENTAL)' CONFIG_IP_NF_NAT_SNMP_BASIC $CONFIG_IP_NF_NAT
@@ -104,13 +67,6 @@
           define_tristate CONFIG_IP_NF_NAT_IRC $CONFIG_IP_NF_NAT
         fi
       fi
-      if [ "$CONFIG_IP_NF_MMS" = "m" ]; then
-        define_tristate CONFIG_IP_NF_NAT_MMS m
-      else
-        if [ "$CONFIG_IP_NF_MMS" = "y" ]; then
-          define_tristate CONFIG_IP_NF_NAT_MMS $CONFIG_IP_NF_NAT
-        fi
-      fi
       # If they want FTP, set to $CONFIG_IP_NF_NAT (m or y), 
       # or $CONFIG_IP_NF_FTP (m or y), whichever is weaker.  Argh.
       if [ "$CONFIG_IP_NF_FTP" = "m" ]; then
@@ -120,13 +76,6 @@
           define_tristate CONFIG_IP_NF_NAT_FTP $CONFIG_IP_NF_NAT
         fi
       fi
-      if [ "$CONFIG_IP_NF_TFTP" = "m" ]; then
-        define_tristate CONFIG_IP_NF_NAT_TFTP m
-      else
-        if [ "$CONFIG_IP_NF_TFTP" = "y" ]; then
-          define_tristate CONFIG_IP_NF_NAT_TFTP $CONFIG_IP_NF_NAT
-        fi
-      fi
     fi
   fi
 
diff -Nurb src/linux/linux/net/ipv4/netfilter/Makefile src/linux/linux.stock/net/ipv4/netfilter/Makefile
--- src/linux/linux/net/ipv4/netfilter/Makefile	2004-02-19 06:04:35.000000000 -0500
+++ src/linux/linux.stock/net/ipv4/netfilter/Makefile	2004-05-09 04:13:03.000000000 -0400
@@ -31,48 +31,20 @@
 # connection tracking
 obj-$(CONFIG_IP_NF_CONNTRACK) += ip_conntrack.o
  
-# H.323 support
-obj-$(CONFIG_IP_NF_H323) += ip_conntrack_h323.o
-obj-$(CONFIG_IP_NF_NAT_H323) += ip_nat_h323.o
-ifdef CONFIG_IP_NF_NAT_H323
-	export-objs += ip_conntrack_h323.o
-endif
-
-
-# connection tracking protocol helpers
-obj-$(CONFIG_IP_NF_CT_PROTO_GRE) += ip_conntrack_proto_gre.o
-ifdef CONFIG_IP_NF_CT_PROTO_GRE
-	export-objs += ip_conntrack_proto_gre.o
-endif
-
-# NAT protocol helpers
-obj-$(CONFIG_IP_NF_NAT_PROTO_GRE) += ip_nat_proto_gre.o
-
 # connection tracking helpers
-obj-$(CONFIG_IP_NF_MMS) += ip_conntrack_mms.o
-ifdef CONFIG_IP_NF_NAT_MMS
-	export-objs += ip_conntrack_mms.o
-endif
-obj-$(CONFIG_IP_NF_PPTP) += ip_conntrack_pptp.o
-ifdef CONFIG_IP_NF_NAT_PPTP
-	export-objs += ip_conntrack_pptp.o
-endif
-obj-$(CONFIG_IP_NF_TFTP) += ip_conntrack_tftp.o
 obj-$(CONFIG_IP_NF_FTP) += ip_conntrack_ftp.o
 ifdef CONFIG_IP_NF_NAT_FTP
 	export-objs += ip_conntrack_ftp.o
 endif
+
 obj-$(CONFIG_IP_NF_IRC) += ip_conntrack_irc.o
 ifdef CONFIG_IP_NF_NAT_IRC
 	export-objs += ip_conntrack_irc.o
 endif
 
 # NAT helpers 
-obj-$(CONFIG_IP_NF_NAT_PPTP) += ip_nat_pptp.o
-obj-$(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_MMS) += ip_nat_mms.o
 
 # generic IP tables 
 obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
@@ -86,19 +58,12 @@
 obj-$(CONFIG_IP_NF_MATCH_HELPER) += ipt_helper.o
 obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o
 obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o
-obj-$(CONFIG_IP_NF_POOL) += ipt_pool.o ip_pool.o
 obj-$(CONFIG_IP_NF_MATCH_MAC) += ipt_mac.o
 
 obj-$(CONFIG_IP_NF_MATCH_PKTTYPE) += ipt_pkttype.o
 obj-$(CONFIG_IP_NF_MATCH_MULTIPORT) += ipt_multiport.o
-
-obj-$(CONFIG_IP_NF_MATCH_MPORT) += ipt_mport.o
-
 obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o
 obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o
-
-obj-$(CONFIG_IP_NF_MATCH_TIME) += ipt_time.o
-
 obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o
 obj-$(CONFIG_IP_NF_MATCH_DSCP) += ipt_dscp.o
 obj-$(CONFIG_IP_NF_MATCH_AH_ESP) += ipt_ah.o ipt_esp.o
@@ -109,7 +74,6 @@
 obj-$(CONFIG_IP_NF_MATCH_STATE) += ipt_state.o
 obj-$(CONFIG_IP_NF_MATCH_CONNTRACK) += ipt_conntrack.o
 obj-$(CONFIG_IP_NF_MATCH_UNCLEAN) += ipt_unclean.o
-obj-$(CONFIG_IP_NF_MATCH_WEBSTR) += ipt_webstr.o
 obj-$(CONFIG_IP_NF_MATCH_TCPMSS) += ipt_tcpmss.o
 
 # targets
@@ -125,8 +89,6 @@
 obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o
 obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o
 obj-$(CONFIG_IP_NF_TARGET_TCPMSS) += ipt_TCPMSS.o
-obj-$(CONFIG_IP_NF_AUTOFW) += ip_autofw.o
-obj-$(CONFIG_IP_NF_TARGET_TRIGGER) += ipt_TRIGGER.o
 
 # generic ARP tables
 obj-$(CONFIG_IP_NF_ARPTABLES) += arp_tables.o
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_core.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_core.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_core.c	2003-08-12 07:33:45.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_core.c	2004-05-09 04:13:03.000000000 -0400
@@ -47,7 +47,11 @@
 
 #define IP_CONNTRACK_VERSION	"2.1"
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 DECLARE_RWLOCK(ip_conntrack_lock);
 DECLARE_RWLOCK(ip_conntrack_expect_tuple_lock);
@@ -62,29 +66,6 @@
 struct list_head *ip_conntrack_hash;
 static kmem_cache_t *ip_conntrack_cachep;
 
-#define SECS  * HZ
-#define MINS  * 60 SECS
-#define HOURS * 60 MINS
-#define DAYS  * 24 HOURS
-
-int sysctl_ip_conntrack_tcp_timeouts[10] = {
-       30 MINS,        /*      TCP_CONNTRACK_NONE,             */
-       5 DAYS,         /*      TCP_CONNTRACK_ESTABLISHED,      */
-       2 MINS,         /*      TCP_CONNTRACK_SYN_SENT,         */
-       60 SECS,        /*      TCP_CONNTRACK_SYN_RECV,         */
-       2 MINS,         /*      TCP_CONNTRACK_FIN_WAIT,         */
-       2 MINS,         /*      TCP_CONNTRACK_TIME_WAIT,        */
-       10 SECS,        /*      TCP_CONNTRACK_CLOSE,            */
-       60 SECS,        /*      TCP_CONNTRACK_CLOSE_WAIT,       */
-       30 SECS,        /*      TCP_CONNTRACK_LAST_ACK,         */
-       2 MINS,         /*      TCP_CONNTRACK_LISTEN,           */
-};
-
-int sysctl_ip_conntrack_udp_timeouts[2] = { 
-       30 SECS,        /*      UNREPLIED                       */ 
-       180 SECS        /*      ASSURED                         */
-};
-
 extern struct ip_conntrack_protocol ip_conntrack_generic_protocol;
 
 static inline int proto_cmpfn(const struct ip_conntrack_protocol *curr,
@@ -129,6 +110,9 @@
 static inline u_int32_t
 hash_conntrack(const struct ip_conntrack_tuple *tuple)
 {
+#if 0
+	dump_tuple(tuple);
+#endif
 	/* ntohl because more differences in low bits. */
 	/* To ensure that halves of the same connection don't hash
 	   clash, we add the source per-proto again. */
@@ -160,8 +144,6 @@
 	tuple->dst.ip = iph->daddr;
 	tuple->dst.protonum = iph->protocol;
 
-	tuple->src.u.all = tuple->dst.u.all = 0;
-
 	ret = protocol->pkt_to_tuple((u_int32_t *)iph + iph->ihl,
 				     len - 4*iph->ihl,
 				     tuple);
@@ -177,8 +159,6 @@
 	inverse->dst.ip = orig->src.ip;
 	inverse->dst.protonum = orig->dst.protonum;
 
-	inverse->src.u.all = inverse->dst.u.all = 0;
-
 	return protocol->invert_tuple(inverse, orig);
 }
 
@@ -196,8 +176,8 @@
 static void
 destroy_expect(struct ip_conntrack_expect *exp)
 {
-	DEBUGP("destroy_expect(%p) use=%d\n", exp, atomic_read(&exp->use));
-	IP_NF_ASSERT(atomic_read(&exp->use));
+	DEBUGP("destroy_expect(%p) use=%d\n", exp, atomic_read(exp->use));
+	IP_NF_ASSERT(atomic_read(exp->use));
 	IP_NF_ASSERT(!timer_pending(&exp->timeout));
 
 	kfree(exp);
@@ -267,11 +247,11 @@
 static void unexpect_related(struct ip_conntrack_expect *expect)
 {
 	IP_NF_ASSERT(expect->expectant);
+	IP_NF_ASSERT(expect->expectant->helper);
 	/* if we are supposed to have a timer, but we can't delete
 	 * it: race condition.  __unexpect_related will
 	 * be calledd by timeout function */
-	if (expect->expectant->helper
-	    && expect->expectant->helper->timeout
+	if (expect->expectant->helper->timeout
 	    && !del_timer(&expect->timeout))
 		return;
 
@@ -580,6 +560,7 @@
 	if (!h) {
 		/* Locally generated ICMPs will match inverted if they
 		   haven't been SNAT'ed yet */
+		/* FIXME: NAT code has to handle half-done double NAT --RR */
 		if (hooknum == NF_IP_LOCAL_OUT)
 			h = ip_conntrack_find_get(&origtuple, NULL);
 
@@ -725,7 +706,6 @@
 
 	/* If the expectation is dying, then this is a looser. */
 	if (expected
-	    && expected->expectant->helper
 	    && expected->expectant->helper->timeout
 	    && ! del_timer(&expected->timeout))
 		expected = NULL;
@@ -744,7 +724,6 @@
 		conntrack->master = expected;
 		expected->sibling = conntrack;
 		LIST_DELETE(&ip_conntrack_expect_list, expected);
-		INIT_LIST_HEAD(&expected->list);
 		expected->expectant->expecting--;
 		nf_conntrack_get(&master_ct(conntrack)->infos[0]);
 	}
@@ -821,9 +800,23 @@
 	int set_reply;
 	int ret;
 
+	/* FIXME: Do this right please. --RR */
 	(*pskb)->nfcache |= NFC_UNKNOWN;
 
 /* Doesn't cover locally-generated broadcast, so not worth it. */
+#if 0
+	/* Ignore broadcast: no `connection'. */
+	if ((*pskb)->pkt_type == PACKET_BROADCAST) {
+		printk("Broadcast packet!\n");
+		return NF_ACCEPT;
+	} else if (((*pskb)->nh.iph->daddr & htonl(0x000000FF)) 
+		   == htonl(0x000000FF)) {
+		printk("Should bcast: %u.%u.%u.%u->%u.%u.%u.%u (sk=%p, ptype=%u)\n",
+		       NIPQUAD((*pskb)->nh.iph->saddr),
+		       NIPQUAD((*pskb)->nh.iph->daddr),
+		       (*pskb)->sk, (*pskb)->pkt_type);
+	}
+#endif
 
 	/* Previously seen (loopback)?  Ignore.  Do this before
            fragment check. */
@@ -943,8 +936,8 @@
 	 * so there is no need to use the tuple lock too */
 
 	DEBUGP("ip_conntrack_expect_related %p\n", related_to);
-	DEBUGP("tuple: "); DUMP_TUPLE_RAW(&expect->tuple);
-	DEBUGP("mask:  "); DUMP_TUPLE_RAW(&expect->mask);
+	DEBUGP("tuple: "); DUMP_TUPLE(&expect->tuple);
+	DEBUGP("mask:  "); DUMP_TUPLE(&expect->mask);
 
 	old = LIST_FIND(&ip_conntrack_expect_list, resent_expect,
 		        struct ip_conntrack_expect *, &expect->tuple, 
@@ -954,8 +947,7 @@
 		   pointing into the payload - otherwise we should have to copy 
 		   the data filled out by the helper over the old one */
 		DEBUGP("expect_related: resent packet\n");
-		if (related_to->helper &&
-		    related_to->helper->timeout) {
+		if (related_to->helper->timeout) {
 			if (!del_timer(&old->timeout)) {
 				/* expectation is dying. Fall through */
 				old = NULL;
@@ -970,32 +962,26 @@
 			WRITE_UNLOCK(&ip_conntrack_lock);
 			return -EEXIST;
 		}
-	} else if (related_to->helper &&
-		   related_to->helper->max_expected && 
+	} else if (related_to->helper->max_expected && 
 		   related_to->expecting >= related_to->helper->max_expected) {
 		struct list_head *cur_item;
 		/* old == NULL */
-		if (!(related_to->helper->flags & 
-		      IP_CT_HELPER_F_REUSE_EXPECT)) {
-			WRITE_UNLOCK(&ip_conntrack_lock);
  		    	if (net_ratelimit())
  			    	printk(KERN_WARNING
 				       "ip_conntrack: max number of expected "
 				       "connections %i of %s reached for "
-				       "%u.%u.%u.%u->%u.%u.%u.%u\n",
+			       "%u.%u.%u.%u->%u.%u.%u.%u%s\n",
 				       related_to->helper->max_expected,
 				       related_to->helper->name,
  		    	       	       NIPQUAD(related_to->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip),
- 		    	       	       NIPQUAD(related_to->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip));
+		    	       NIPQUAD(related_to->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip),
+		    	       related_to->helper->flags & IP_CT_HELPER_F_REUSE_EXPECT ?
+		    	       ", reusing" : "");
+		if (!(related_to->helper->flags & 
+		      IP_CT_HELPER_F_REUSE_EXPECT)) {
+			WRITE_UNLOCK(&ip_conntrack_lock);
 			return -EPERM;
 		}
-		DEBUGP("ip_conntrack: max number of expected "
-		       "connections %i of %s reached for "
-		       "%u.%u.%u.%u->%u.%u.%u.%u, reusing\n",
- 		       related_to->helper->max_expected,
-		       related_to->helper->name,
-		       NIPQUAD(related_to->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip),
-		       NIPQUAD(related_to->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip));
  
 		/* choose the the oldest expectation to evict */
 		list_for_each(cur_item, &related_to->sibling_list) { 
@@ -1055,8 +1041,7 @@
 	/* add to global list of expectations */
 	list_prepend(&ip_conntrack_expect_list, &new->list);
 	/* add and start timer if required */
-	if (related_to->helper &&
-	    related_to->helper->timeout) {
+	if (related_to->helper->timeout) {
 		init_timer(&new->timeout);
 		new->timeout.data = (unsigned long)new;
 		new->timeout.function = expectation_timed_out;
@@ -1079,10 +1064,11 @@
 
 	MUST_BE_READ_LOCKED(&ip_conntrack_lock);
 	WRITE_LOCK(&ip_conntrack_expect_tuple_lock);
+
 	DEBUGP("change_expect:\n");
-	DEBUGP("exp tuple: "); DUMP_TUPLE_RAW(&expect->tuple);
-	DEBUGP("exp mask:  "); DUMP_TUPLE_RAW(&expect->mask);
-	DEBUGP("newtuple:  "); DUMP_TUPLE_RAW(newtuple);
+	DEBUGP("exp tuple: "); DUMP_TUPLE(&expect->tuple);
+	DEBUGP("exp mask:  "); DUMP_TUPLE(&expect->mask);
+	DEBUGP("newtuple:  "); DUMP_TUPLE(newtuple);
 	if (expect->ct_tuple.dst.protonum == 0) {
 		/* Never seen before */
 		DEBUGP("change expect: never seen before\n");
@@ -1360,8 +1346,6 @@
     0, NULL };
 
 #define NET_IP_CONNTRACK_MAX 2089
-#define NET_IP_CONNTRACK_TCP_TIMEOUTS  2090
-#define NET_IP_CONNTRACK_UDP_TIMEOUTS  2091
 #define NET_IP_CONNTRACK_MAX_NAME "ip_conntrack_max"
 
 #ifdef CONFIG_SYSCTL
@@ -1370,14 +1354,6 @@
 static ctl_table ip_conntrack_table[] = {
 	{ NET_IP_CONNTRACK_MAX, NET_IP_CONNTRACK_MAX_NAME, &ip_conntrack_max,
 	  sizeof(ip_conntrack_max), 0644,  NULL, proc_dointvec },
-	{ NET_IP_CONNTRACK_TCP_TIMEOUTS, "ip_conntrack_tcp_timeouts",
-          &sysctl_ip_conntrack_tcp_timeouts,
-          sizeof(sysctl_ip_conntrack_tcp_timeouts),
-          0644, NULL, &proc_dointvec_jiffies, &sysctl_jiffies },
-	{ NET_IP_CONNTRACK_UDP_TIMEOUTS, "ip_conntrack_udp_timeouts",
-          &sysctl_ip_conntrack_udp_timeouts,
-          sizeof(sysctl_ip_conntrack_udp_timeouts),
-          0644, NULL, &proc_dointvec_jiffies, &sysctl_jiffies },
  	{ 0 }
 };
 
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_ftp.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_ftp.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_ftp.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_ftp.c	2004-05-09 04:13:03.000000000 -0400
@@ -24,7 +24,11 @@
 static int loose = 0;
 MODULE_PARM(loose, "i");
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 static int try_rfc959(const char *, size_t, u_int32_t [], char);
 static int try_eprt(const char *, size_t, u_int32_t [], char);
@@ -191,6 +195,16 @@
 	}
 
 	if (strnicmp(data, pattern, plen) != 0) {
+#if 0
+		size_t i;
+
+		DEBUGP("ftp: string mismatch\n");
+		for (i = 0; i < plen; i++) {
+			DEBUGFTP("ftp:char %u `%c'(%u) vs `%c'(%u)\n",
+				 i, data[i], data[i],
+				 pattern[i], pattern[i]);
+		}
+#endif
 		return 0;
 	}
 
@@ -214,6 +228,7 @@
 	return 1;
 }
 
+/* FIXME: This should be in userspace.  Later. */
 static int help(const struct iphdr *iph, size_t len,
 		struct ip_conntrack *ct,
 		enum ip_conntrack_info ctinfo)
@@ -249,6 +264,7 @@
 	}
 
 	/* Checksum invalid?  Ignore. */
+	/* FIXME: Source route IP option packets --RR */
 	if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr,
 			 csum_partial((char *)tcph, tcplen, 0))) {
 		DEBUGP("ftp_help: bad csum: %p %u %u.%u.%u.%u %u.%u.%u.%u\n",
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_h323.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_h323.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_h323.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_h323.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,302 +0,0 @@
-/* 
- * H.323 'brute force' extension for H.323 connection tracking. 
- * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
- *
- * Based on ip_masq_h323.c for 2.2 kernels from CoRiTel, Sofia project.
- * (http://www.coritel.it/projects/sofia/nat/)
- * Uses Sampsa Ranta's excellent idea on using expectfn to 'bind'
- * the unregistered helpers to the conntrack entries.
- */
-
-
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
-
-MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-MODULE_DESCRIPTION("H.323 'brute force' connection tracking module");
-MODULE_LICENSE("GPL");
-
-DECLARE_LOCK(ip_h323_lock);
-struct module *ip_conntrack_h323 = THIS_MODULE;
-
-#define DEBUGP(format, args...)
-
-static int h245_help(const struct iphdr *iph, size_t len,
-		     struct ip_conntrack *ct,
-		     enum ip_conntrack_info ctinfo)
-{
-	struct tcphdr *tcph = (void *)iph + iph->ihl * 4;
-	unsigned char *data = (unsigned char *) tcph + tcph->doff * 4;
-	unsigned char *data_limit;
-	u_int32_t tcplen = len - iph->ihl * 4;
-	u_int32_t datalen = tcplen - tcph->doff * 4;
-	int dir = CTINFO2DIR(ctinfo);
-	struct ip_ct_h225_master *info = &ct->help.ct_h225_info;
-	struct ip_conntrack_expect expect, *exp = &expect;
-	struct ip_ct_h225_expect *exp_info = &exp->help.exp_h225_info;
-	u_int16_t data_port;
-	u_int32_t data_ip;
-	unsigned int i;
-
-	DEBUGP("ct_h245_help: help entered %u.%u.%u.%u:%u->%u.%u.%u.%u:%u\n",
-		NIPQUAD(iph->saddr), ntohs(tcph->source),
-		NIPQUAD(iph->daddr), ntohs(tcph->dest));
-
-	/* Can't track connections formed before we registered */
-	if (!info)
-		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("ct_h245_help: Conntrackinfo = %u\n", ctinfo);
-		return NF_ACCEPT;
-	}
-
-	/* Not whole TCP header or too short packet? */
-	if (tcplen < sizeof(struct tcphdr) || tcplen < tcph->doff * 4 + 5) {
-		DEBUGP("ct_h245_help: tcplen = %u\n", (unsigned)tcplen);
-		return NF_ACCEPT;
-	}
-
-	/* Checksum invalid?  Ignore. */
-	if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr,
-			      csum_partial((char *)tcph, tcplen, 0))) {
-		DEBUGP("ct_h245_help: bad csum: %p %u %u.%u.%u.%u %u.%u.%u.%u\n",
-		       tcph, tcplen, NIPQUAD(iph->saddr),
-		       NIPQUAD(iph->daddr));
-		return NF_ACCEPT;
-	}
-
-	data_limit = (unsigned char *) data + datalen;
-	/* bytes: 0123   45
-	          ipadrr port */
-	for (i = 0; data < (data_limit - 5); data++, i++) {
-		memcpy(&data_ip, data, sizeof(u_int32_t));
-		if (data_ip == iph->saddr) {
-			memcpy(&data_port, data + 4, sizeof(u_int16_t));
-			memset(&expect, 0, sizeof(expect));
-			/* update the H.225 info */
-			DEBUGP("ct_h245_help: new RTCP/RTP requested %u.%u.%u.%u:->%u.%u.%u.%u:%u\n",
-				NIPQUAD(ct->tuplehash[!dir].tuple.src.ip),
-				NIPQUAD(iph->saddr), ntohs(data_port));
-			LOCK_BH(&ip_h323_lock);
-			info->is_h225 = H225_PORT + 1;
-			exp_info->port = data_port;
-			exp_info->dir = dir;
-			exp_info->offset = i;
-
-			exp->seq = ntohl(tcph->seq) + i;
-		    
-			exp->tuple = ((struct ip_conntrack_tuple)
-				{ { ct->tuplehash[!dir].tuple.src.ip,
-				    { 0 } },
-				  { data_ip,
-				    { data_port },
-				    IPPROTO_UDP }});
-			exp->mask = ((struct ip_conntrack_tuple)
-				{ { 0xFFFFFFFF, { 0 } },
-				  { 0xFFFFFFFF, { 0xFFFF }, 0xFFFF }});
-	
-			exp->expectfn = NULL;
-			
-			/* Ignore failure; should only happen with NAT */
-			ip_conntrack_expect_related(ct, exp);
-
-			UNLOCK_BH(&ip_h323_lock);
-		}
-	}
-
-	return NF_ACCEPT;
-
-}
-
-/* H.245 helper is not registered! */
-static struct ip_conntrack_helper h245 = 
-	{ { NULL, NULL },
-          "H.245",				/* name */
-          IP_CT_HELPER_F_REUSE_EXPECT,		/* flags */
-          NULL,					/* module */
-          8,					/* max_ expected */
-          240,					/* timeout */
-          { { 0, { 0 } },			/* tuple */
-            { 0, { 0 }, IPPROTO_TCP } },
-          { { 0, { 0xFFFF } },			/* mask */
-            { 0, { 0 }, 0xFFFF } },
-          h245_help				/* helper */
-	};
-
-static int h225_expect(struct ip_conntrack *ct)
-{
-	WRITE_LOCK(&ip_conntrack_lock);
-	ct->helper = &h245;
-	DEBUGP("h225_expect: helper for %p added\n", ct);
-	WRITE_UNLOCK(&ip_conntrack_lock);
-	
-	return NF_ACCEPT;	/* unused */
-}
-
-static int h225_help(const struct iphdr *iph, size_t len,
-		     struct ip_conntrack *ct,
-		     enum ip_conntrack_info ctinfo)
-{
-	struct tcphdr *tcph = (void *)iph + iph->ihl * 4;
-	unsigned char *data = (unsigned char *) tcph + tcph->doff * 4;
-	unsigned char *data_limit;
-	u_int32_t tcplen = len - iph->ihl * 4;
-	u_int32_t datalen = tcplen - tcph->doff * 4;
-	int dir = CTINFO2DIR(ctinfo);
-	struct ip_ct_h225_master *info = &ct->help.ct_h225_info;
-	struct ip_conntrack_expect expect, *exp = &expect;
-	struct ip_ct_h225_expect *exp_info = &exp->help.exp_h225_info;
-	u_int16_t data_port;
-	u_int32_t data_ip;
-	unsigned int i;
-	
-	DEBUGP("ct_h225_help: help entered %u.%u.%u.%u:%u->%u.%u.%u.%u:%u\n",
-		NIPQUAD(iph->saddr), ntohs(tcph->source),
-		NIPQUAD(iph->daddr), ntohs(tcph->dest));
-
-	/* Can't track connections formed before we registered */
-	if (!info)
-		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("ct_h225_help: Conntrackinfo = %u\n", ctinfo);
-		return NF_ACCEPT;
-	}
-
-	/* Not whole TCP header or too short packet? */
-	if (tcplen < sizeof(struct tcphdr) || tcplen < tcph->doff * 4 + 5) {
-		DEBUGP("ct_h225_help: tcplen = %u\n", (unsigned)tcplen);
-		return NF_ACCEPT;
-	}
-
-	/* Checksum invalid?  Ignore. */
-	if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr,
-			      csum_partial((char *)tcph, tcplen, 0))) {
-		DEBUGP("ct_h225_help: bad csum: %p %u %u.%u.%u.%u %u.%u.%u.%u\n",
-		       tcph, tcplen, NIPQUAD(iph->saddr),
-		       NIPQUAD(iph->daddr));
-		return NF_ACCEPT;
-	}
-	
-	data_limit = (unsigned char *) data + datalen;
-	/* bytes: 0123   45
-	          ipadrr port */
-	for (i = 0; data < (data_limit - 5); data++, i++) {
-		memcpy(&data_ip, data, sizeof(u_int32_t));
-		if (data_ip == iph->saddr) {
-			memcpy(&data_port, data + 4, sizeof(u_int16_t));
-			if (data_port == tcph->source) {
-				/* Signal address */
-				DEBUGP("ct_h225_help: sourceCallSignalAddress from %u.%u.%u.%u\n",
-					NIPQUAD(iph->saddr));
-				/* Update the H.225 info so that NAT can mangle the address/port
-				   even when we have no expected connection! */
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-				LOCK_BH(&ip_h323_lock);
-				info->dir = dir;
-				info->seq[IP_CT_DIR_ORIGINAL] = ntohl(tcph->seq) + i;
-				info->offset[IP_CT_DIR_ORIGINAL] = i;
-				UNLOCK_BH(&ip_h323_lock);
-#endif
-			} else {
-				memset(&expect, 0, sizeof(expect));
-
-				/* update the H.225 info */
-				LOCK_BH(&ip_h323_lock);
-				info->is_h225 = H225_PORT;
-				exp_info->port = data_port;
-				exp_info->dir = dir;
-				exp_info->offset = i;
-
-				exp->seq = ntohl(tcph->seq) + i;
-
-				exp->tuple = ((struct ip_conntrack_tuple)
-					{ { ct->tuplehash[!dir].tuple.src.ip,
-					    { 0 } },
-					  { data_ip,
-					    { data_port },
-					    IPPROTO_TCP }});
-				exp->mask = ((struct ip_conntrack_tuple)
-					{ { 0xFFFFFFFF, { 0 } },
-					  { 0xFFFFFFFF, { 0xFFFF }, 0xFFFF }});
-	
-				exp->expectfn = h225_expect;
-				
-				/* Ignore failure */
-				ip_conntrack_expect_related(ct, exp);
-
-				DEBUGP("ct_h225_help: new H.245 requested %u.%u.%u.%u->%u.%u.%u.%u:%u\n",
-					NIPQUAD(ct->tuplehash[!dir].tuple.src.ip),
-					NIPQUAD(iph->saddr), ntohs(data_port));
-
-				UNLOCK_BH(&ip_h323_lock);
-                	}  
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-		} else if (data_ip == iph->daddr) {
-			memcpy(&data_port, data + 4, sizeof(u_int16_t));
-			if (data_port == tcph->dest) {
-				/* Signal address */
-				DEBUGP("ct_h225_help: destCallSignalAddress %u.%u.%u.%u\n",
-					NIPQUAD(iph->daddr));
-				/* Update the H.225 info so that NAT can mangle the address/port
-				   even when we have no expected connection! */
-				LOCK_BH(&ip_h323_lock);
-				info->dir = dir;
-				info->seq[IP_CT_DIR_REPLY] = ntohl(tcph->seq) + i;
-				info->offset[IP_CT_DIR_REPLY] = i;
-				UNLOCK_BH(&ip_h323_lock);
-			}
-#endif
-		}
-	}
-
-	return NF_ACCEPT;
-
-}
-
-static struct ip_conntrack_helper h225 = 
-	{ { NULL, NULL },
-	  "H.225",					/* name */
-	  IP_CT_HELPER_F_REUSE_EXPECT,			/* flags */
-	  THIS_MODULE,					/* module */
-	  2,						/* max_expected */
-	  240,						/* timeout */
-	  { { 0, { __constant_htons(H225_PORT) } },	/* tuple */
-	    { 0, { 0 }, IPPROTO_TCP } },
-	  { { 0, { 0xFFFF } },				/* mask */
-	    { 0, { 0 }, 0xFFFF } },
-	  h225_help					/* helper */
-	};
-
-static int __init init(void)
-{
-	return ip_conntrack_helper_register(&h225);
-}
-
-static void __exit fini(void)
-{
-	/* Unregister H.225 helper */	
-	ip_conntrack_helper_unregister(&h225);
-}
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-EXPORT_SYMBOL(ip_h323_lock);
-#endif
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_mms.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_mms.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_mms.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_mms.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,292 +0,0 @@
-/* MMS extension for IP connection tracking
- * (C) 2002 by Filip Sneppe <filip.sneppe@cronos.be>
- * based on ip_conntrack_ftp.c and ip_conntrack_irc.c
- *
- * ip_conntrack_mms.c v0.3 2002-09-22
- *
- *      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_mms.o ports=port1,port2,...port<MAX_PORTS>
- *
- *      Please give the ports of all MMS servers You wish to connect to.
- *      If you don't specify ports, the default will be TCP port 1755.
- *
- *      More info on MMS protocol, firewalls and NAT:
- *      http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwmt/html/MMSFirewall.asp
- *      http://www.microsoft.com/windows/windowsmedia/serve/firewall.asp
- *
- *      The SDP project people are reverse-engineering MMS:
- *      http://get.to/sdp
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/ctype.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_mms.h>
-
-DECLARE_LOCK(ip_mms_lock);
-struct module *ip_conntrack_mms = THIS_MODULE;
-
-#define MAX_PORTS 8
-static int ports[MAX_PORTS];
-static int ports_c;
-#ifdef MODULE_PARM
-MODULE_PARM(ports, "1-" __MODULE_STRING(MAX_PORTS) "i");
-#endif
-
-#define DEBUGP(format, args...)
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-EXPORT_SYMBOL(ip_mms_lock);
-#endif
-
-MODULE_AUTHOR("Filip Sneppe <filip.sneppe@cronos.be>");
-MODULE_DESCRIPTION("Microsoft Windows Media Services (MMS) connection tracking module");
-MODULE_LICENSE("GPL");
-
-/* #define isdigit(c) (c >= '0' && c <= '9') */
-
-/* copied from drivers/usb/serial/io_edgeport.c - not perfect but will do the trick */
-static void unicode_to_ascii (char *string, short *unicode, int unicode_size)
-{
-	int i;
-	for (i = 0; i < unicode_size; ++i) {
-		string[i] = (char)(unicode[i]);
-	}
-	string[unicode_size] = 0x00;
-}
-
-__inline static int atoi(char *s) 
-{
-	int i=0;
-	while (isdigit(*s)) {
-		i = i*10 + *(s++) - '0';
-	}
-	return i;
-}
-
-/* convert ip address string like "192.168.0.10" to unsigned int */
-__inline static u_int32_t asciiiptoi(char *s)
-{
-	unsigned int i, j, k;
-
-	for(i=k=0; k<3; ++k, ++s, i<<=8) {
-		i+=atoi(s);
-		for(j=0; (*(++s) != '.') && (j<3); ++j)
-			;
-	}
-	i+=atoi(s);
-	return ntohl(i);
-}
-
-int parse_mms(const char *data, 
-	      const unsigned int datalen,
-	      u_int32_t *mms_ip,
-	      u_int16_t *mms_proto,
-	      u_int16_t *mms_port,
-	      char **mms_string_b,
-	      char **mms_string_e,
-	      char **mms_padding_e)
-{
-	int unicode_size, i;
-	char tempstring[28];       /* "\\255.255.255.255\UDP\65535" */
-	char getlengthstring[28];
-	
-	for(unicode_size=0; 
-	    (char) *(data+(MMS_SRV_UNICODE_STRING_OFFSET+unicode_size*2)) != (char)0;
-	    unicode_size++)
-		if ((unicode_size == 28) || (MMS_SRV_UNICODE_STRING_OFFSET+unicode_size*2 >= datalen)) 
-			return -1; /* out of bounds - incomplete packet */
-	
-	unicode_to_ascii(tempstring, (short *)(data+MMS_SRV_UNICODE_STRING_OFFSET), unicode_size);
-	DEBUGP("ip_conntrack_mms: offset 60: %s\n", (const char *)(tempstring));
-	
-	/* IP address ? */
-	*mms_ip = asciiiptoi(tempstring+2);
-	
-	i=sprintf(getlengthstring, "%u.%u.%u.%u", HIPQUAD(*mms_ip));
-		
-	/* protocol ? */
-	if(strncmp(tempstring+3+i, "TCP", 3)==0)
-		*mms_proto = IPPROTO_TCP;
-	else if(strncmp(tempstring+3+i, "UDP", 3)==0)
-		*mms_proto = IPPROTO_UDP;
-
-	/* port ? */
-	*mms_port = atoi(tempstring+7+i);
-
-	/* we store a pointer to the beginning of the "\\a.b.c.d\proto\port" 
-	   unicode string, one to the end of the string, and one to the end 
-	   of the packet, since we must keep track of the number of bytes 
-	   between end of the unicode string and the end of packet (padding) */
-	*mms_string_b  = (char *)(data + MMS_SRV_UNICODE_STRING_OFFSET);
-	*mms_string_e  = (char *)(data + MMS_SRV_UNICODE_STRING_OFFSET + unicode_size * 2);
-	*mms_padding_e = (char *)(data + datalen); /* looks funny, doesn't it */
-	return 0;
-}
-
-
-static int help(const struct iphdr *iph, size_t len,
-		struct ip_conntrack *ct,
-		enum ip_conntrack_info ctinfo)
-{
-	/* tcplen not negative guaranteed by ip_conntrack_tcp.c */
-	struct tcphdr *tcph = (void *)iph + iph->ihl * 4;
-	const char *data = (const char *)tcph + tcph->doff * 4;
-	unsigned int tcplen = len - iph->ihl * 4;
-	unsigned int datalen = tcplen - tcph->doff * 4;
-	int dir = CTINFO2DIR(ctinfo);
-	struct ip_conntrack_expect expect, *exp = &expect; 
-	struct ip_ct_mms_expect *exp_mms_info = &exp->help.exp_mms_info;
-	
-	u_int32_t mms_ip;
-	u_int16_t mms_proto;
-	char mms_proto_string[8];
-	u_int16_t mms_port;
-	char *mms_string_b, *mms_string_e, *mms_padding_e;
-	     
-	/* 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("ip_conntrack_mms: Conntrackinfo = %u\n", ctinfo);
-		return NF_ACCEPT;
-	}
-
-	/* Not whole TCP header? */
-	if (tcplen < sizeof(struct tcphdr) || tcplen < tcph->doff*4) {
-		DEBUGP("ip_conntrack_mms: tcplen = %u\n", (unsigned)tcplen);
-		return NF_ACCEPT;
-	}
-
-	/* Checksum invalid?  Ignore. */
-	if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr,
-	    csum_partial((char *)tcph, tcplen, 0))) {
-		DEBUGP("mms_help: bad csum: %p %u %u.%u.%u.%u %u.%u.%u.%u\n",
-		       tcph, tcplen, NIPQUAD(iph->saddr),
-		       NIPQUAD(iph->daddr));
-		return NF_ACCEPT;
-	}
-	
-	/* Only look at packets with 0x00030002/196610 on bytes 36->39 of TCP payload */
-	if( (MMS_SRV_MSG_OFFSET < datalen) && 
-	    ((*(u32 *)(data+MMS_SRV_MSG_OFFSET)) == MMS_SRV_MSG_ID)) {
-		DEBUGP("ip_conntrack_mms: offset 37: %u %u %u %u, datalen:%u\n", 
-		       (u8)*(data+36), (u8)*(data+37), 
-		       (u8)*(data+38), (u8)*(data+39),
-		       datalen);
-		if(parse_mms(data, datalen, &mms_ip, &mms_proto, &mms_port,
-		             &mms_string_b, &mms_string_e, &mms_padding_e))
-			if(net_ratelimit())
-				printk(KERN_WARNING
-				       "ip_conntrack_mms: Unable to parse data payload\n");
-
-		memset(&expect, 0, sizeof(expect));
-
-		sprintf(mms_proto_string, "(%u)", mms_proto);
-		DEBUGP("ip_conntrack_mms: adding %s expectation %u.%u.%u.%u -> %u.%u.%u.%u:%u\n",
-		       mms_proto == IPPROTO_TCP ? "TCP"
-		       : mms_proto == IPPROTO_UDP ? "UDP":mms_proto_string,
-		       NIPQUAD(ct->tuplehash[!dir].tuple.src.ip),
-		       NIPQUAD(mms_ip),
-		       mms_port);
-		
-		/* it's possible that the client will just ask the server to tunnel
-		   the stream over the same TCP session (from port 1755): there's 
-		   shouldn't be a need to add an expectation in that case, but it
-		   makes NAT packet mangling so much easier */
-		LOCK_BH(&ip_mms_lock);
-
-		DEBUGP("ip_conntrack_mms: tcph->seq = %u\n", tcph->seq);
-		
-		exp->seq = ntohl(tcph->seq) + (mms_string_b - data);
-		exp_mms_info->len     = (mms_string_e  - mms_string_b);
-		exp_mms_info->padding = (mms_padding_e - mms_string_e);
-		exp_mms_info->port    = mms_port;
-		
-		DEBUGP("ip_conntrack_mms: wrote info seq=%u (ofs=%u), len=%d, padding=%u\n",
-		       exp->seq, (mms_string_e - data), exp_mms_info->len, exp_mms_info->padding);
-		
-		exp->tuple = ((struct ip_conntrack_tuple)
-		              { { ct->tuplehash[!dir].tuple.src.ip, { 0 } },
-		              { mms_ip,
-		                { (__u16) ntohs(mms_port) },
-		                mms_proto } }
-		             );
-		exp->mask  = ((struct ip_conntrack_tuple)
-		             { { 0xFFFFFFFF, { 0 } },
-		               { 0xFFFFFFFF, { 0xFFFF }, 0xFFFF }});
-		exp->expectfn = NULL;
-		ip_conntrack_expect_related(ct, &expect);
-		UNLOCK_BH(&ip_mms_lock);
-	}
-
-	return NF_ACCEPT;
-}
-
-static struct ip_conntrack_helper mms[MAX_PORTS];
-static char mms_names[MAX_PORTS][10];
-
-/* Not __exit: called from init() */
-static void fini(void)
-{
-	int i;
-	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
-		DEBUGP("ip_conntrack_mms: unregistering helper for port %d\n",
-				ports[i]);
-		ip_conntrack_helper_unregister(&mms[i]);
-	}
-}
-
-static int __init init(void)
-{
-	int i, ret;
-	char *tmpname;
-
-	if (ports[0] == 0)
-		ports[0] = MMS_PORT;
-
-	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
-		memset(&mms[i], 0, sizeof(struct ip_conntrack_helper));
-		mms[i].tuple.src.u.tcp.port = htons(ports[i]);
-		mms[i].tuple.dst.protonum = IPPROTO_TCP;
-		mms[i].mask.src.u.tcp.port = 0xFFFF;
-		mms[i].mask.dst.protonum = 0xFFFF;
-		mms[i].max_expected = 1;
-		mms[i].timeout = 0;
-		mms[i].flags = IP_CT_HELPER_F_REUSE_EXPECT;
-		mms[i].me = THIS_MODULE;
-		mms[i].help = help;
-
-		tmpname = &mms_names[i][0];
-		if (ports[i] == MMS_PORT)
-			sprintf(tmpname, "mms");
-		else
-			sprintf(tmpname, "mms-%d", ports[i]);
-		mms[i].name = tmpname;
-
-		DEBUGP("ip_conntrack_mms: registering helper for port %d\n", 
-				ports[i]);
-		ret = ip_conntrack_helper_register(&mms[i]);
-
-		if (ret) {
-			fini();
-			return ret;
-		}
-		ports_c++;
-	}
-	return 0;
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_pptp.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_pptp.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_pptp.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_pptp.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,531 +0,0 @@
-/*
- * ip_conntrack_pptp.c	- Version 1.11
- *
- * Connection tracking support for PPTP (Point to Point Tunneling Protocol).
- * PPTP is a a protocol for creating virtual private networks.
- * It is a specification defined by Microsoft and some vendors
- * working with Microsoft.  PPTP is built on top of a modified
- * version of the Internet Generic Routing Encapsulation Protocol.
- * GRE is defined in RFC 1701 and RFC 1702.  Documentation of
- * PPTP can be found in RFC 2637
- *
- * (C) 2000-2002 by Harald Welte <laforge@gnumonks.org>, 
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- * Limitations:
- * 	 - We blindly assume that control connections are always
- * 	   established in PNS->PAC direction.  This is a violation
- * 	   of RFFC2673
- *
- * TODO: - finish support for multiple calls within one session
- * 	   (needs expect reservations in newnat)
- *	 - testing of incoming PPTP calls 
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter connection tracking helper module for PPTP");
-
-DECLARE_LOCK(ip_pptp_lock);
-
-#define DEBUGP(format, args...)
-
-#define SECS *HZ
-#define MINS * 60 SECS
-#define HOURS * 60 MINS
-#define DAYS * 24 HOURS
-
-#define PPTP_GRE_TIMEOUT 		(10 MINS)
-#define PPTP_GRE_STREAM_TIMEOUT 	(5 DAYS)
-
-static int pptp_expectfn(struct ip_conntrack *ct)
-{
-	struct ip_conntrack_expect *exp, *other_exp;
-	struct ip_conntrack *master;
-
-	DEBUGP("increasing timeouts\n");
-	/* increase timeout of GRE data channel conntrack entry */
-	ct->proto.gre.timeout = PPTP_GRE_TIMEOUT;
-	ct->proto.gre.stream_timeout = PPTP_GRE_STREAM_TIMEOUT;
-
-	master = master_ct(ct);
-	if (!master) {
-		DEBUGP(" no master!!!\n");
-		return 0;
-	}
-
-	DEBUGP("completing tuples with ct info\n");
-	/* we can do this, since we're unconfirmed */
-	if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key == 
-		htonl(master->help.ct_pptp_info.pac_call_id)) {	
-		/* assume PNS->PAC */
-		ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key = 
-			htonl(master->help.ct_pptp_info.pns_call_id);
-		ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-			htonl(master->help.ct_pptp_info.pns_call_id);
-	} else {
-		/* assume PAC->PNS */
-		ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
-			htonl(master->help.ct_pptp_info.pac_call_id);
-		ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-			htonl(master->help.ct_pptp_info.pns_call_id);
-	}
-
-	return 0;
-}
-
-/* timeout GRE data connections */
-static int pptp_timeout_related(struct ip_conntrack *ct)
-{
-	struct list_head *cur_item;
-	struct ip_conntrack_expect *exp;
-
-	list_for_each(cur_item, &ct->sibling_list) {
-		exp = list_entry(cur_item, struct ip_conntrack_expect,
-				 expected_list);
-
-		if (!exp->sibling)
-			continue;
-
-		DEBUGP("setting timeout of conntrack %p to 0\n",
-			exp->sibling);
-		exp->sibling->proto.gre.timeout = 0;
-		exp->sibling->proto.gre.stream_timeout = 0;
-		ip_ct_refresh(exp->sibling, 0);
-	}
-
-	return 0;
-}
-
-/* expect GRE connection in PNS->PAC direction */
-static inline int
-exp_gre(struct ip_conntrack *master,
-	u_int32_t seq,
-	u_int16_t callid,
-	u_int16_t peer_callid)
-{
-	struct ip_conntrack_expect exp;
-	struct ip_conntrack_tuple inv_tuple;
-
-	memset(&exp, 0, sizeof(exp));
-	/* tuple in original direction, PAC->PNS */
-	exp.tuple.src.ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-	exp.tuple.src.u.gre.key = htonl(ntohs(peer_callid));
-	exp.tuple.dst.ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-	exp.tuple.dst.u.gre.key = htonl(ntohs(callid));
-	exp.tuple.dst.u.gre.protocol = __constant_htons(GRE_PROTOCOL_PPTP);
-	exp.tuple.dst.u.gre.version = GRE_VERSION_PPTP;
-	exp.tuple.dst.protonum = IPPROTO_GRE;
-
-	exp.mask.src.ip = 0xffffffff;
-	exp.mask.src.u.all = 0;
-	exp.mask.dst.u.all = 0;
-	exp.mask.dst.u.gre.key = 0xffffffff;
-	exp.mask.dst.u.gre.version = 0xff;
-	exp.mask.dst.u.gre.protocol = 0xffff;
-	exp.mask.dst.ip = 0xffffffff;
-	exp.mask.dst.protonum = 0xffff;
-			
-	exp.seq = seq;
-	exp.expectfn = pptp_expectfn;
-
-	exp.help.exp_pptp_info.pac_call_id = ntohs(callid);
-	exp.help.exp_pptp_info.pns_call_id = ntohs(peer_callid);
-
-	DEBUGP("calling expect_related ");
-	DUMP_TUPLE_RAW(&exp.tuple);
-	
-	/* Add GRE keymap entries */
-	ip_ct_gre_keymap_add(&exp, &exp.tuple, 0);
-	invert_tuplepr(&inv_tuple, &exp.tuple);
-	ip_ct_gre_keymap_add(&exp, &inv_tuple, 1);
-	
-	ip_conntrack_expect_related(master, &exp);
-
-	return 0;
-}
-
-static inline int 
-pptp_inbound_pkt(struct tcphdr *tcph,
-		 struct pptp_pkt_hdr *pptph, 
-		 size_t datalen,
-		 struct ip_conntrack *ct,
-		 enum ip_conntrack_info ctinfo)
-{
-	struct PptpControlHeader *ctlh;
-        union pptp_ctrl_union pptpReq;
-	
-	struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-	u_int16_t msg, *cid, *pcid;
-	u_int32_t seq;	
-
-	ctlh = (struct PptpControlHeader *) 
-		((char *) pptph + sizeof(struct pptp_pkt_hdr));
-	pptpReq.rawreq = (void *) 
-		((char *) ctlh + sizeof(struct PptpControlHeader));
-
-	msg = ntohs(ctlh->messageType);
-	DEBUGP("inbound control message %s\n", strMName[msg]);
-
-	switch (msg) {
-	case PPTP_START_SESSION_REPLY:
-		/* server confirms new control session */
-		if (info->sstate < PPTP_SESSION_REQUESTED) {
-			DEBUGP("%s without START_SESS_REQUEST\n",
-				strMName[msg]);
-			break;
-		}
-		if (pptpReq.srep->resultCode == PPTP_START_OK)
-			info->sstate = PPTP_SESSION_CONFIRMED;
-		else 
-			info->sstate = PPTP_SESSION_ERROR;
-		break;
-
-	case PPTP_STOP_SESSION_REPLY:
-		/* server confirms end of control session */
-		if (info->sstate > PPTP_SESSION_STOPREQ) {
-			DEBUGP("%s without STOP_SESS_REQUEST\n",
-				strMName[msg]);
-			break;
-		}
-		if (pptpReq.strep->resultCode == PPTP_STOP_OK)
-			info->sstate = PPTP_SESSION_NONE;
-		else
-			info->sstate = PPTP_SESSION_ERROR;
-		break;
-
-	case PPTP_OUT_CALL_REPLY:
-		/* server accepted call, we now expect GRE frames */
-		if (info->sstate != PPTP_SESSION_CONFIRMED) {
-			DEBUGP("%s but no session\n", strMName[msg]);
-			break;
-		}
-		if (info->cstate != PPTP_CALL_OUT_REQ &&
-		    info->cstate != PPTP_CALL_OUT_CONF) {
-			DEBUGP("%s without OUTCALL_REQ\n", strMName[msg]);
-			break;
-		}
-		if (pptpReq.ocack->resultCode != PPTP_OUTCALL_CONNECT) {
-			info->cstate = PPTP_CALL_NONE;
-			break;
-		}
-
-		cid = &pptpReq.ocack->callID;
-		pcid = &pptpReq.ocack->peersCallID;
-
-		info->pac_call_id = ntohs(*cid);
-		
-		if (htons(info->pns_call_id) != *pcid) {
-			DEBUGP("%s for unknown callid %u\n",
-				strMName[msg], ntohs(*pcid));
-			break;
-		}
-
-		DEBUGP("%s, CID=%X, PCID=%X\n", strMName[msg], 
-			ntohs(*cid), ntohs(*pcid));
-		
-		info->cstate = PPTP_CALL_OUT_CONF;
-
-		seq = ntohl(tcph->seq) + ((void *)pcid - (void *)pptph);
-		exp_gre(ct, seq, *cid, *pcid);
-		break;
-
-	case PPTP_IN_CALL_REQUEST:
-		/* server tells us about incoming call request */
-		if (info->sstate != PPTP_SESSION_CONFIRMED) {
-			DEBUGP("%s but no session\n", strMName[msg]);
-			break;
-		}
-		pcid = &pptpReq.icack->peersCallID;
-		DEBUGP("%s, PCID=%X\n", strMName[msg], ntohs(*pcid));
-		info->cstate = PPTP_CALL_IN_REQ;
-		info->pac_call_id= ntohs(*pcid);
-		break;
-
-	case PPTP_IN_CALL_CONNECT:
-		/* server tells us about incoming call established */
-		if (info->sstate != PPTP_SESSION_CONFIRMED) {
-			DEBUGP("%s but no session\n", strMName[msg]);
-			break;
-		}
-		if (info->sstate != PPTP_CALL_IN_REP
-		    && info->sstate != PPTP_CALL_IN_CONF) {
-			DEBUGP("%s but never sent IN_CALL_REPLY\n",
-				strMName[msg]);
-			break;
-		}
-
-		pcid = &pptpReq.iccon->peersCallID;
-		cid = &info->pac_call_id;
-
-		if (info->pns_call_id != ntohs(*pcid)) {
-			DEBUGP("%s for unknown CallID %u\n", 
-				strMName[msg], ntohs(*cid));
-			break;
-		}
-
-		DEBUGP("%s, PCID=%X\n", strMName[msg], ntohs(*pcid));
-		info->cstate = PPTP_CALL_IN_CONF;
-
-		/* we expect a GRE connection from PAC to PNS */
-		seq = ntohl(tcph->seq) + ((void *)pcid - (void *)pptph);
-		exp_gre(ct, seq, *cid, *pcid);
-
-		break;
-
-	case PPTP_CALL_DISCONNECT_NOTIFY:
-		/* server confirms disconnect */
-		cid = &pptpReq.disc->callID;
-		DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*cid));
-		info->cstate = PPTP_CALL_NONE;
-
-		/* untrack this call id, unexpect GRE packets */
-		pptp_timeout_related(ct);
-		/* NEWNAT: look up exp for call id and unexpct_related */
-		break;
-
-	case PPTP_WAN_ERROR_NOTIFY:
-		break;
-
-	case PPTP_ECHO_REQUEST:
-	case PPTP_ECHO_REPLY:
-		/* I don't have to explain these ;) */
-		break;
-	default:
-		DEBUGP("invalid %s (TY=%d)\n", (msg <= PPTP_MSG_MAX)
-			? strMName[msg]:strMName[0], msg);
-		break;
-	}
-
-	return NF_ACCEPT;
-
-}
-
-static inline int
-pptp_outbound_pkt(struct tcphdr *tcph,
-		  struct pptp_pkt_hdr *pptph,
-		  size_t datalen,
-		  struct ip_conntrack *ct,
-		  enum ip_conntrack_info ctinfo)
-{
-	struct PptpControlHeader *ctlh;
-        union pptp_ctrl_union pptpReq;
-	struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-	u_int16_t msg, *cid, *pcid;
-
-	ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
-	pptpReq.rawreq = (void *) ((void *) ctlh + sizeof(*ctlh));
-
-	msg = ntohs(ctlh->messageType);
-	DEBUGP("outbound control message %s\n", strMName[msg]);
-
-	switch (msg) {
-	case PPTP_START_SESSION_REQUEST:
-		/* client requests for new control session */
-		if (info->sstate != PPTP_SESSION_NONE) {
-			DEBUGP("%s but we already have one",
-				strMName[msg]);
-		}
-		info->sstate = PPTP_SESSION_REQUESTED;
-		break;
-	case PPTP_STOP_SESSION_REQUEST:
-		/* client requests end of control session */
-		info->sstate = PPTP_SESSION_STOPREQ;
-		break;
-
-	case PPTP_OUT_CALL_REQUEST:
-		/* client initiating connection to server */
-		if (info->sstate != PPTP_SESSION_CONFIRMED) {
-			DEBUGP("%s but no session\n",
-				strMName[msg]);
-			break;
-		}
-		info->cstate = PPTP_CALL_OUT_REQ;
-		/* track PNS call id */
-		cid = &pptpReq.ocreq->callID;
-		DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*cid));
-		info->pns_call_id = ntohs(*cid);
-		break;
-	case PPTP_IN_CALL_REPLY:
-		/* client answers incoming call */
-		if (info->cstate != PPTP_CALL_IN_REQ
-		    && info->cstate != PPTP_CALL_IN_REP) {
-			DEBUGP("%s without incall_req\n", 
-				strMName[msg]);
-			break;
-		}
-		if (pptpReq.icack->resultCode != PPTP_INCALL_ACCEPT) {
-			info->cstate = PPTP_CALL_NONE;
-			break;
-		}
-		pcid = &pptpReq.icack->peersCallID;
-		if (info->pac_call_id != ntohs(*pcid)) {
-			DEBUGP("%s for unknown call %u\n", 
-				strMName[msg], ntohs(*pcid));
-			break;
-		}
-		DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*pcid));
-		/* part two of the three-way handshake */
-		info->cstate = PPTP_CALL_IN_REP;
-		info->pns_call_id = ntohs(pptpReq.icack->callID);
-		break;
-
-	case PPTP_CALL_CLEAR_REQUEST:
-		/* client requests hangup of call */
-		if (info->sstate != PPTP_SESSION_CONFIRMED) {
-			DEBUGP("CLEAR_CALL but no session\n");
-			break;
-		}
-		/* FUTURE: iterate over all calls and check if
-		 * call ID is valid.  We don't do this without newnat,
-		 * because we only know about last call */
-		info->cstate = PPTP_CALL_CLEAR_REQ;
-		break;
-	case PPTP_SET_LINK_INFO:
-		break;
-	case PPTP_ECHO_REQUEST:
-	case PPTP_ECHO_REPLY:
-		/* I don't have to explain these ;) */
-		break;
-	default:
-		DEBUGP("invalid %s (TY=%d)\n", (msg <= PPTP_MSG_MAX)? 
-			strMName[msg]:strMName[0], msg);
-		/* unknown: no need to create GRE masq table entry */
-		break;
-	}
-
-	return NF_ACCEPT;
-}
-
-
-/* track caller id inside control connection, call expect_related */
-static int 
-conntrack_pptp_help(const struct iphdr *iph, size_t len,
-		    struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-
-{
-	struct pptp_pkt_hdr *pptph;
-	
-	struct tcphdr *tcph = (void *) iph + iph->ihl * 4;
-	u_int32_t tcplen = len - iph->ihl * 4;
-	u_int32_t datalen = tcplen - tcph->doff * 4;
-	void *datalimit;
-	int dir = CTINFO2DIR(ctinfo);
-	struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-
-	int oldsstate, oldcstate;
-	int ret;
-
-	/* don't do any tracking before tcp handshake complete */
-	if (ctinfo != IP_CT_ESTABLISHED 
-	    && ctinfo != IP_CT_ESTABLISHED+IP_CT_IS_REPLY) {
-		DEBUGP("ctinfo = %u, skipping\n", ctinfo);
-		return NF_ACCEPT;
-	}
-	
-	/* not a complete TCP header? */
-	if (tcplen < sizeof(struct tcphdr) || tcplen < tcph->doff * 4) {
-		DEBUGP("tcplen = %u\n", tcplen);
-		return NF_ACCEPT;
-	}
-
-	/* checksum invalid? */
-	if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr,
-			csum_partial((char *) tcph, tcplen, 0))) {
-		printk(KERN_NOTICE __FILE__ ": bad csum\n");
-//		return NF_ACCEPT;
-	}
-
-	if (tcph->fin || tcph->rst) {
-		DEBUGP("RST/FIN received, timeouting GRE\n");
-		/* can't do this after real newnat */
-		info->cstate = PPTP_CALL_NONE;
-
-		/* untrack this call id, unexpect GRE packets */
-		pptp_timeout_related(ct);
-		/* no need to call unexpect_related since master conn
-		 * dies anyway */
-	}
-
-
-	pptph = (struct pptp_pkt_hdr *) ((void *) tcph + tcph->doff * 4);
-	datalimit = (void *) pptph + datalen;
-
-	/* not a full pptp packet header? */
-	if ((void *) pptph+sizeof(*pptph) >= datalimit) {
-		DEBUGP("no full PPTP header, can't track\n");
-		return NF_ACCEPT;
-	}
-	
-	/* if it's not a control message we can't do anything with it */
-        if (ntohs(pptph->packetType) != PPTP_PACKET_CONTROL ||
-	    ntohl(pptph->magicCookie) != PPTP_MAGIC_COOKIE) {
-		DEBUGP("not a control packet\n");
-		return NF_ACCEPT;
-	}
-
-	oldsstate = info->sstate;
-	oldcstate = info->cstate;
-
-	LOCK_BH(&ip_pptp_lock);
-
-	if (dir == IP_CT_DIR_ORIGINAL)
-		/* client -> server (PNS -> PAC) */
-		ret = pptp_outbound_pkt(tcph, pptph, datalen, ct, ctinfo);
-	else
-		/* server -> client (PAC -> PNS) */
-		ret = pptp_inbound_pkt(tcph, pptph, datalen, ct, ctinfo);
-	DEBUGP("sstate: %d->%d, cstate: %d->%d\n",
-		oldsstate, info->sstate, oldcstate, info->cstate);
-	UNLOCK_BH(&ip_pptp_lock);
-
-	return ret;
-}
-
-/* control protocol helper */
-static struct ip_conntrack_helper pptp = { 
-	{ NULL, NULL },
-	"pptp", IP_CT_HELPER_F_REUSE_EXPECT, THIS_MODULE, 2, 0,
-	{ { 0, { tcp: { port: __constant_htons(PPTP_CONTROL_PORT) } } }, 
-	  { 0, { 0 }, IPPROTO_TCP } },
-	{ { 0, { tcp: { port: 0xffff } } }, 
-	  { 0, { 0 }, 0xffff } },
-	conntrack_pptp_help };
-
-/* ip_conntrack_pptp initialization */
-static int __init init(void)
-{
-	int retcode;
-
-	DEBUGP(__FILE__ ": registering helper\n");
-	if ((retcode = ip_conntrack_helper_register(&pptp))) {
-                printk(KERN_ERR "Unable to register conntrack application "
-				"helper for pptp: %d\n", retcode);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static void __exit fini(void)
-{
-	ip_conntrack_helper_unregister(&pptp);
-}
-
-module_init(init);
-module_exit(fini);
-
-EXPORT_SYMBOL(ip_pptp_lock);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_pptp_priv.h src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_pptp_priv.h
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_pptp_priv.h	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_pptp_priv.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,24 +0,0 @@
-#ifndef _IP_CT_PPTP_PRIV_H
-#define _IP_CT_PPTP_PRIV_H
-
-/* PptpControlMessageType names */
-static const char *strMName[] = {
-	"UNKNOWN_MESSAGE",
-	"START_SESSION_REQUEST",
-	"START_SESSION_REPLY",
-	"STOP_SESSION_REQUEST",
-	"STOP_SESSION_REPLY",
-	"ECHO_REQUEST",
-	"ECHO_REPLY",
-	"OUT_CALL_REQUEST",
-	"OUT_CALL_REPLY",
-	"IN_CALL_REQUEST",
-	"IN_CALL_REPLY",
-	"IN_CALL_CONNECT",
-	"CALL_CLEAR_REQUEST",
-	"CALL_DISCONNECT_NOTIFY",
-	"WAN_ERROR_NOTIFY",
-	"SET_LINK_INFO"
-};
-
-#endif
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_proto_gre.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_proto_gre.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_proto_gre.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_proto_gre.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,320 +0,0 @@
-/*
- * ip_conntrack_proto_gre.c - Version 1.11
- *
- * Connection tracking protocol helper module for GRE.
- *
- * GRE is a generic encapsulation protocol, which is generally not very
- * suited for NAT, as it has no protocol-specific part as port numbers.
- *
- * It has an optional key field, which may help us distinguishing two 
- * connections between the same two hosts.
- *
- * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784 
- *
- * PPTP is built on top of a modified version of GRE, and has a mandatory
- * field called "CallID", which serves us for the same purpose as the key
- * field in plain GRE.
- *
- * Documentation about PPTP can be found in RFC 2637
- *
- * (C) 2000-2002 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/in.h>
-#include <linux/list.h>
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-
-DECLARE_RWLOCK(ip_ct_gre_lock);
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_ct_gre_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_ct_gre_lock)
-
-#include <linux/netfilter_ipv4/listhelp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("netfilter connection tracking protocol helper for GRE");
-
-/* shamelessly stolen from ip_conntrack_proto_udp.c */
-#define GRE_TIMEOUT		(30*HZ)
-#define GRE_STREAM_TIMEOUT	(180*HZ)
-
-#define DEBUGP(x, args...)
-#define DUMP_TUPLE_GRE(x)
-				
-/* GRE KEYMAP HANDLING FUNCTIONS */
-static LIST_HEAD(gre_keymap_list);
-
-static inline int gre_key_cmpfn(const struct ip_ct_gre_keymap *km,
-				const struct ip_conntrack_tuple *t)
-{
-	return ((km->tuple.src.ip == t->src.ip) &&
-		(km->tuple.dst.ip == t->dst.ip) &&
-	        (km->tuple.dst.protonum == t->dst.protonum) &&
-	        (km->tuple.dst.u.all == t->dst.u.all));
-}
-
-/* look up the source key for a given tuple */
-static u_int32_t gre_keymap_lookup(struct ip_conntrack_tuple *t)
-{
-	struct ip_ct_gre_keymap *km;
-	u_int32_t key;
-
-	READ_LOCK(&ip_ct_gre_lock);
-	km = LIST_FIND(&gre_keymap_list, gre_key_cmpfn,
-			struct ip_ct_gre_keymap *, t);
-	if (!km) {
-		READ_UNLOCK(&ip_ct_gre_lock);
-		return 0;
-	}
-
-	key = km->tuple.src.u.gre.key;
-	READ_UNLOCK(&ip_ct_gre_lock);
-
-	return key;
-}
-
-/* add a single keymap entry, associate with specified expect */
-int ip_ct_gre_keymap_add(struct ip_conntrack_expect *exp,
-			 struct ip_conntrack_tuple *t, int reply)
-{
-	struct ip_ct_gre_keymap *km;
-
-	km = kmalloc(sizeof(*km), GFP_ATOMIC);
-	if (!km)
-		return -1;
-
-	/* initializing list head should be sufficient */
-	memset(km, 0, sizeof(*km));
-
-	memcpy(&km->tuple, t, sizeof(*t));
-	km->master = exp;
-
-	if (!reply)
-		exp->proto.gre.keymap_orig = km;
-	else
-		exp->proto.gre.keymap_reply = km;
-
-	DEBUGP("adding new entry %p: ", km);
-	DUMP_TUPLE_GRE(&km->tuple);
-
-	WRITE_LOCK(&ip_ct_gre_lock);
-	list_append(&gre_keymap_list, km);
-	WRITE_UNLOCK(&ip_ct_gre_lock);
-
-	return 0;
-}
-
-/* change the tuple of a keymap entry (used by nat helper) */
-void ip_ct_gre_keymap_change(struct ip_ct_gre_keymap *km,
-			     struct ip_conntrack_tuple *t)
-{
-	DEBUGP("changing entry %p to: ", km);
-	DUMP_TUPLE_GRE(t);
-
-	WRITE_LOCK(&ip_ct_gre_lock);
-	memcpy(&km->tuple, t, sizeof(km->tuple));
-	WRITE_UNLOCK(&ip_ct_gre_lock);
-}
-
-
-/* PUBLIC CONNTRACK PROTO HELPER FUNCTIONS */
-
-/* invert gre part of tuple */
-static int gre_invert_tuple(struct ip_conntrack_tuple *tuple,
-			    const struct ip_conntrack_tuple *orig)
-{
-	tuple->dst.u.gre.protocol = orig->dst.u.gre.protocol;
-	tuple->dst.u.gre.version = orig->dst.u.gre.version;
-
-	tuple->dst.u.gre.key = orig->src.u.gre.key;
-	tuple->src.u.gre.key = orig->dst.u.gre.key;
-
-	return 1;
-}
-
-/* gre hdr info to tuple */
-static int gre_pkt_to_tuple(const void *datah, size_t datalen,
-			    struct ip_conntrack_tuple *tuple)
-{
-	struct gre_hdr *grehdr = (struct gre_hdr *) datah;
-	struct gre_hdr_pptp *pgrehdr = (struct gre_hdr_pptp *) datah;
-	u_int32_t srckey;
-
-	/* core guarantees 8 protocol bytes, no need for size check */
-
-	tuple->dst.u.gre.version = grehdr->version; 
-	tuple->dst.u.gre.protocol = grehdr->protocol;
-
-	switch (grehdr->version) {
-		case GRE_VERSION_1701:
-			if (!grehdr->key) {
-				DEBUGP("Can't track GRE without key\n");
-				return 0;
-			}
-			tuple->dst.u.gre.key = *(gre_key(grehdr));
-			break;
-
-		case GRE_VERSION_PPTP:
-			if (ntohs(grehdr->protocol) != GRE_PROTOCOL_PPTP) {
-				DEBUGP("GRE_VERSION_PPTP but unknown proto\n");
-				return 0;
-			}
-			tuple->dst.u.gre.key = htonl(ntohs(pgrehdr->call_id));
-			break;
-
-		default:
-			printk(KERN_WARNING "unknown GRE version %hu\n",
-				tuple->dst.u.gre.version);
-			return 0;
-	}
-
-	srckey = gre_keymap_lookup(tuple);
-
-	tuple->src.u.gre.key = srckey;
-
-	return 1;
-}
-
-/* print gre part of tuple */
-static unsigned int gre_print_tuple(char *buffer,
-				    const struct ip_conntrack_tuple *tuple)
-{
-	return sprintf(buffer, "version=%d protocol=0x%04x srckey=0x%x dstkey=0x%x ", 
-			tuple->dst.u.gre.version,
-			ntohs(tuple->dst.u.gre.protocol),
-			ntohl(tuple->src.u.gre.key),
-			ntohl(tuple->dst.u.gre.key));
-}
-
-/* print private data for conntrack */
-static unsigned int gre_print_conntrack(char *buffer,
-					const struct ip_conntrack *ct)
-{
-	return sprintf(buffer, "timeout=%u, stream_timeout=%u ",
-		       (ct->proto.gre.timeout / HZ),
-		       (ct->proto.gre.stream_timeout / HZ));
-}
-
-/* Returns verdict for packet, and may modify conntrack */
-static int gre_packet(struct ip_conntrack *ct,
-		      struct iphdr *iph, size_t len,
-		      enum ip_conntrack_info conntrackinfo)
-{
-	/* If we've seen traffic both ways, this is a GRE connection.
-	 * Extend timeout. */
-	if (ct->status & IPS_SEEN_REPLY) {
-		ip_ct_refresh(ct, ct->proto.gre.stream_timeout);
-		/* Also, more likely to be important, and not a probe. */
-		set_bit(IPS_ASSURED_BIT, &ct->status);
-	} else
-		ip_ct_refresh(ct, ct->proto.gre.timeout);
-	
-	return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int gre_new(struct ip_conntrack *ct,
-		   struct iphdr *iph, size_t len)
-{ 
-	DEBUGP(": ");
-	DUMP_TUPLE_GRE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-
-	/* initialize to sane value.  Ideally a conntrack helper
-	 * (e.g. in case of pptp) is increasing them */
-	ct->proto.gre.stream_timeout = GRE_STREAM_TIMEOUT;
-	ct->proto.gre.timeout = GRE_TIMEOUT;
-
-	return 1;
-}
-
-/* Called when a conntrack entry has already been removed from the hashes
- * and is about to be deleted from memory */
-static void gre_destroy(struct ip_conntrack *ct)
-{
-	struct ip_conntrack_expect *master = ct->master;
-
-	DEBUGP(" entering\n");
-
-	if (!master) {
-		DEBUGP("no master exp for ct %p\n", ct);
-		return;
-	}
-
-	WRITE_LOCK(&ip_ct_gre_lock);
-	if (master->proto.gre.keymap_orig) {
-		DEBUGP("removing %p from list\n", master->proto.gre.keymap_orig);
-		list_del(&master->proto.gre.keymap_orig->list);
-		kfree(master->proto.gre.keymap_orig);
-	}
-	if (master->proto.gre.keymap_reply) {
-		DEBUGP("removing %p from list\n", master->proto.gre.keymap_reply);
-		list_del(&master->proto.gre.keymap_reply->list);
-		kfree(master->proto.gre.keymap_reply);
-	}
-	WRITE_UNLOCK(&ip_ct_gre_lock);
-}
-
-/* protocol helper struct */
-static struct ip_conntrack_protocol gre = { { NULL, NULL }, IPPROTO_GRE,
-					    "gre", 
-					    gre_pkt_to_tuple,
-					    gre_invert_tuple,
-					    gre_print_tuple,
-					    gre_print_conntrack,
-					    gre_packet,
-					    gre_new,
-					    gre_destroy,
-					    NULL,
-					    THIS_MODULE };
-
-/* ip_conntrack_proto_gre initialization */
-static int __init init(void)
-{
-	int retcode;
-
-	if ((retcode = ip_conntrack_protocol_register(&gre))) {
-                printk(KERN_ERR "Unable to register conntrack protocol "
-			        "helper for gre: %d\n",	retcode);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static void __exit fini(void)
-{
-	struct list_head *pos, *n;
-
-	/* delete all keymap entries */
-	WRITE_LOCK(&ip_ct_gre_lock);
-	list_for_each_safe(pos, n, &gre_keymap_list) {
-		DEBUGP("deleting keymap %p\n", pos);
-		list_del(pos);
-		kfree(pos);
-	}
-	WRITE_UNLOCK(&ip_ct_gre_lock);
-
-	ip_conntrack_protocol_unregister(&gre); 
-}
-
-EXPORT_SYMBOL(ip_ct_gre_keymap_add);
-EXPORT_SYMBOL(ip_ct_gre_keymap_change);
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_proto_tcp.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_proto_tcp.c	2003-08-12 07:33:45.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_proto_tcp.c	2004-05-09 04:13:03.000000000 -0400
@@ -15,11 +15,17 @@
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
 #include <linux/netfilter_ipv4/lockhelp.h>
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 /* Protects conntrack->proto.tcp */
 static DECLARE_RWLOCK(tcp_lock);
 
+/* FIXME: Examine ipfilter's timeouts and conntrack transitions more
+   closely.  They're more complex. --RR */
 
 /* Actually, I believe that neither ipmasq (where this code is stolen
    from) nor ipfilter do it exactly right.  A new conntrack machine taking
@@ -39,6 +45,25 @@
 	"LISTEN"
 };
 
+#define SECS *HZ
+#define MINS * 60 SECS
+#define HOURS * 60 MINS
+#define DAYS * 24 HOURS
+
+
+static unsigned long tcp_timeouts[]
+= { 30 MINS, 	/*	TCP_CONNTRACK_NONE,	*/
+    5 DAYS,	/*	TCP_CONNTRACK_ESTABLISHED,	*/
+    2 MINS,	/*	TCP_CONNTRACK_SYN_SENT,	*/
+    60 SECS,	/*	TCP_CONNTRACK_SYN_RECV,	*/
+    2 MINS,	/*	TCP_CONNTRACK_FIN_WAIT,	*/
+    2 MINS,	/*	TCP_CONNTRACK_TIME_WAIT,	*/
+    10 SECS,	/*	TCP_CONNTRACK_CLOSE,	*/
+    60 SECS,	/*	TCP_CONNTRACK_CLOSE_WAIT,	*/
+    30 SECS,	/*	TCP_CONNTRACK_LAST_ACK,	*/
+    2 MINS,	/*	TCP_CONNTRACK_LISTEN,	*/
+};
+
 #define sNO TCP_CONNTRACK_NONE
 #define sES TCP_CONNTRACK_ESTABLISHED
 #define sSS TCP_CONNTRACK_SYN_SENT
@@ -161,13 +186,13 @@
 	    && tcph->syn && tcph->ack)
 		conntrack->proto.tcp.handshake_ack
 			= htonl(ntohl(tcph->seq) + 1);
+	WRITE_UNLOCK(&tcp_lock);
 
 	/* If only reply is a RST, we can consider ourselves not to
 	   have an established connection: this is a fairly common
 	   problem case, so we can delete the conntrack
 	   immediately.  --RR */
 	if (!(conntrack->status & IPS_SEEN_REPLY) && tcph->rst) {
-		WRITE_UNLOCK(&tcp_lock);
 		if (del_timer(&conntrack->timeout))
 			conntrack->timeout.function((unsigned long)conntrack);
 	} else {
@@ -178,9 +203,7 @@
 		    && tcph->ack_seq == conntrack->proto.tcp.handshake_ack)
 			set_bit(IPS_ASSURED_BIT, &conntrack->status);
 
-		WRITE_UNLOCK(&tcp_lock);
- 		ip_ct_refresh(conntrack, 
- 			sysctl_ip_conntrack_tcp_timeouts[newconntrack]);
+		ip_ct_refresh(conntrack, tcp_timeouts[newconntrack]);
 	}
 
 	return NF_ACCEPT;
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_proto_udp.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_proto_udp.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_proto_udp.c	2003-08-12 07:33:45.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_proto_udp.c	2004-05-09 04:13:03.000000000 -0400
@@ -5,7 +5,9 @@
 #include <linux/in.h>
 #include <linux/udp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_udp.h>
+
+#define UDP_TIMEOUT (30*HZ)
+#define UDP_STREAM_TIMEOUT (180*HZ)
 
 static int udp_pkt_to_tuple(const void *datah, size_t datalen,
 			    struct ip_conntrack_tuple *tuple)
@@ -50,13 +52,11 @@
 	/* If we've seen traffic both ways, this is some kind of UDP
 	   stream.  Extend timeout. */
 	if (conntrack->status & IPS_SEEN_REPLY) {
-		ip_ct_refresh(conntrack, 
-			sysctl_ip_conntrack_udp_timeouts[UDP_STREAM_TIMEOUT]);
+		ip_ct_refresh(conntrack, UDP_STREAM_TIMEOUT);
 		/* Also, more likely to be important, and not a probe */
 		set_bit(IPS_ASSURED_BIT, &conntrack->status);
 	} else
-		ip_ct_refresh(conntrack, 
-			sysctl_ip_conntrack_udp_timeouts[UDP_TIMEOUT]);
+		ip_ct_refresh(conntrack, UDP_TIMEOUT);
 
 	return NF_ACCEPT;
 }
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_standalone.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_standalone.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_standalone.c	2003-08-12 07:33:45.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_standalone.c	2004-05-09 04:13:03.000000000 -0400
@@ -27,7 +27,11 @@
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 struct module *ip_conntrack_module = THIS_MODULE;
 MODULE_LICENSE("GPL");
@@ -52,17 +56,12 @@
 	return len;
 }
 
+/* FIXME: Don't print source proto part. --RR */
 static unsigned int
 print_expect(char *buffer, const struct ip_conntrack_expect *expect)
 {
 	unsigned int len;
 
-	if (!expect  || !expect->expectant || !expect->expectant->helper) {
-		DEBUGP("expect  %x expect->expectant %x expect->expectant->helper %x\n", 
-			expect, expect->expectant, expect->expectant->helper);
-		return 0;
-	}
-
 	if (expect->expectant->helper->timeout)
 		len = sprintf(buffer, "EXPECTING: %lu ",
 			      timer_pending(&expect->timeout)
@@ -294,6 +293,8 @@
 	return ret;
 }
 
+/* FIXME: Allow NULL functions and sub in pointers to generic for
+   them. --RR */
 int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
 {
 	int ret = 0;
@@ -362,8 +363,6 @@
 EXPORT_SYMBOL(ip_ct_find_proto);
 EXPORT_SYMBOL(__ip_ct_find_proto);
 EXPORT_SYMBOL(ip_ct_find_helper);
-EXPORT_SYMBOL(sysctl_ip_conntrack_tcp_timeouts);
-EXPORT_SYMBOL(sysctl_ip_conntrack_udp_timeouts);
 EXPORT_SYMBOL(ip_conntrack_expect_related);
 EXPORT_SYMBOL(ip_conntrack_change_expect);
 EXPORT_SYMBOL(ip_conntrack_unexpect_related);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_conntrack_tftp.c src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_tftp.c
--- src/linux/linux/net/ipv4/netfilter/ip_conntrack_tftp.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_conntrack_tftp.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,126 +0,0 @@
-/*
- * Licensed under GNU GPL version 2 Copyright Magnus Boden <mb@ozaba.mine.nu>
- * Version: 0.0.7
- *
- * Thu 21 Mar 2002 Harald Welte <laforge@gnumonks.org>
- * 	- port to newnat API
- *
- */
-
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tftp.h>
-
-MODULE_AUTHOR("Magnus Boden <mb@ozaba.mine.nu>");
-MODULE_DESCRIPTION("Netfilter connection tracking module for tftp");
-MODULE_LICENSE("GPL");
-
-#define MAX_PORTS 8
-static int ports[MAX_PORTS];
-static int ports_c = 0;
-#ifdef MODULE_PARM
-MODULE_PARM(ports, "1-" __MODULE_STRING(MAX_PORTS) "i");
-MODULE_PARM_DESC(ports, "port numbers of tftp servers");
-#endif
-
-#define DEBUGP(format, args...)
-
-static int tftp_help(const struct iphdr *iph, size_t len,
-	struct ip_conntrack *ct,
-	enum ip_conntrack_info ctinfo)
-{
-	struct udphdr *udph = (void *)iph + iph->ihl * 4;
-	struct tftphdr *tftph = (void *)udph + 8;
-	struct ip_conntrack_expect exp;
-	
-	switch (ntohs(tftph->opcode)) {
-	/* RRQ and WRQ works the same way */
-	case TFTP_OPCODE_READ:
-	case TFTP_OPCODE_WRITE:
-		DEBUGP("");
-		DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-		DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-		memset(&exp, 0, sizeof(exp));
-
-		exp.tuple = ct->tuplehash[IP_CT_DIR_REPLY].tuple;
-		exp.mask.src.ip = 0xffffffff;
-		exp.mask.dst.ip = 0xffffffff;
-		exp.mask.dst.u.udp.port = 0xffff;
-		exp.mask.dst.protonum = 0xffff;
-		exp.expectfn = NULL;
-
-		DEBUGP("expect: ");
-		DUMP_TUPLE(&exp.tuple);
-		DUMP_TUPLE(&exp.mask);
-		ip_conntrack_expect_related(ct, &exp);
-		break;
-	default:
-		DEBUGP("Unknown opcode\n");
-	}
-	return NF_ACCEPT;
-}
-
-static struct ip_conntrack_helper tftp[MAX_PORTS];
-static char tftp_names[MAX_PORTS][10];
-
-static void fini(void)
-{
-	int i;
-
-	for (i = 0 ; i < ports_c; i++) {
-		DEBUGP("unregistering helper for port %d\n",
-			ports[i]);
-		ip_conntrack_helper_unregister(&tftp[i]);
-	} 
-}
-
-static int __init init(void)
-{
-	int i, ret;
-	char *tmpname;
-
-	if (!ports[0])
-		ports[0]=TFTP_PORT;
-
-	for (i = 0 ; (i < MAX_PORTS) && ports[i] ; i++) {
-		/* Create helper structure */
-		memset(&tftp[i], 0, sizeof(struct ip_conntrack_helper));
-
-		tftp[i].tuple.dst.protonum = IPPROTO_UDP;
-		tftp[i].tuple.src.u.udp.port = htons(ports[i]);
-		tftp[i].mask.dst.protonum = 0xFFFF;
-		tftp[i].mask.src.u.udp.port = 0xFFFF;
-		tftp[i].max_expected = 1;
-		tftp[i].timeout = 0;
-		tftp[i].flags = IP_CT_HELPER_F_REUSE_EXPECT;
-		tftp[i].me = THIS_MODULE;
-		tftp[i].help = tftp_help;
-
-		tmpname = &tftp_names[i][0];
-		if (ports[i] == TFTP_PORT)
-			sprintf(tmpname, "tftp");
-		else
-			sprintf(tmpname, "tftp-%d", i);
-		tftp[i].name = tmpname;
-
-		DEBUGP("port #%d: %d\n", i, ports[i]);
-
-		ret=ip_conntrack_helper_register(&tftp[i]);
-		if (ret) {
-			printk("ERROR registering helper for port %d\n",
-				ports[i]);
-			fini();
-			return(ret);
-		}
-		ports_c++;
-	}
-	return(0);
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_core.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_core.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_core.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_core.c	2004-05-09 04:13:03.000000000 -0400
@@ -31,7 +31,11 @@
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 DECLARE_RWLOCK(ip_nat_lock);
 DECLARE_RWLOCK_EXTERN(ip_conntrack_lock);
@@ -207,6 +211,7 @@
 {
 	struct rtable *rt;
 
+	/* FIXME: IPTOS_TOS(iph->tos) --RR */
 	if (ip_route_output(&rt, var_ip, 0, 0, 0) != 0) {
 		DEBUGP("do_extra_mangle: Can't get route to %u.%u.%u.%u\n",
 		       NIPQUAD(var_ip));
@@ -429,7 +434,7 @@
 	*tuple = *orig_tuple;
 	while ((rptr = find_best_ips_proto_fast(tuple, mr, conntrack, hooknum))
 	       != NULL) {
-		DEBUGP("Found best for "); DUMP_TUPLE_RAW(tuple);
+		DEBUGP("Found best for "); DUMP_TUPLE(tuple);
 		/* 3) The per-protocol part of the manip is made to
 		   map into the range to make a unique tuple. */
 
@@ -529,6 +534,31 @@
 	invert_tuplepr(&orig_tp,
 		       &conntrack->tuplehash[IP_CT_DIR_REPLY].tuple);
 
+#if 0
+	{
+	unsigned int i;
+
+	DEBUGP("Hook %u (%s), ", hooknum,
+	       HOOK2MANIP(hooknum)==IP_NAT_MANIP_SRC ? "SRC" : "DST");
+	DUMP_TUPLE(&orig_tp);
+	DEBUGP("Range %p: ", mr);
+	for (i = 0; i < mr->rangesize; i++) {
+		DEBUGP("%u:%s%s%s %u.%u.%u.%u - %u.%u.%u.%u %u - %u\n",
+		       i,
+		       (mr->range[i].flags & IP_NAT_RANGE_MAP_IPS)
+		       ? " MAP_IPS" : "",
+		       (mr->range[i].flags
+			& IP_NAT_RANGE_PROTO_SPECIFIED)
+		       ? " PROTO_SPECIFIED" : "",
+		       (mr->range[i].flags & IP_NAT_RANGE_FULL)
+		       ? " FULL" : "",
+		       NIPQUAD(mr->range[i].min_ip),
+		       NIPQUAD(mr->range[i].max_ip),
+		       mr->range[i].min.all,
+		       mr->range[i].max.all);
+	}
+	}
+#endif
 
 	do {
 		if (!get_unique_tuple(&new_tuple, &orig_tp, mr, conntrack,
@@ -538,6 +568,15 @@
 			return NF_DROP;
 		}
 
+#if 0
+		DEBUGP("Hook %u (%s) %p\n", hooknum,
+		       HOOK2MANIP(hooknum)==IP_NAT_MANIP_SRC ? "SRC" : "DST",
+		       conntrack);
+		DEBUGP("Original: ");
+		DUMP_TUPLE(&orig_tp);
+		DEBUGP("New: ");
+		DUMP_TUPLE(&new_tuple);
+#endif
 
 		/* We now have two tuples (SRCIP/SRCPT/DSTIP/DSTPT):
 		   the original (A/B/C/D') and the mangled one (E/F/G/H').
@@ -554,6 +593,8 @@
                    If fail this race (reply tuple now used), repeat. */
 	} while (!ip_conntrack_alter_reply(conntrack, &reply));
 
+	/* FIXME: We can simply used existing conntrack reply tuple
+           here --RR */
 	/* Create inverse of original: C/D/A/B' */
 	invert_tuplepr(&inv_tuple, &orig_tp);
 
@@ -678,6 +719,17 @@
 						iph->check);
 		iph->daddr = manip->ip;
 	}
+#if 0
+	if (ip_fast_csum((u8 *)iph, iph->ihl) != 0)
+		DEBUGP("IP: checksum on packet bad.\n");
+
+	if (proto == IPPROTO_TCP) {
+		void *th = (u_int32_t *)iph + iph->ihl;
+		if (tcp_v4_check(th, len - 4*iph->ihl, iph->saddr, iph->daddr,
+				 csum_partial((char *)th, len-4*iph->ihl, 0)))
+			DEBUGP("TCP: checksum on packet bad\n");
+	}
+#endif
 }
 
 static inline int exp_for_packet(struct ip_conntrack_expect *exp,
@@ -765,6 +817,7 @@
 				continue;
 
 			if (exp_for_packet(exp, pskb)) {
+				/* FIXME: May be true multiple times in the case of UDP!! */
 				DEBUGP("calling nat helper (exp=%p) for packet\n",
 					exp);
 				ret = helper->help(ct, exp, info, ctinfo, 
@@ -926,6 +979,7 @@
 		INIT_LIST_HEAD(&byipsproto[i]);
 	}
 
+	/* FIXME: Man, this is a hack.  <SIGH> */
 	IP_NF_ASSERT(ip_conntrack_destroyed == NULL);
 	ip_conntrack_destroyed = &ip_nat_cleanup_conntrack;
 
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_h323.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_h323.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_h323.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_h323.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,403 +0,0 @@
-/* 
- * H.323 'brute force' extension for NAT alteration. 
- * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
- *
- * Based on ip_masq_h323.c for 2.2 kernels from CoRiTel, Sofia project.
- * (http://www.coritel.it/projects/sofia/nat.html)
- * Uses Sampsa Ranta's excellent idea on using expectfn to 'bind'
- * the unregistered helpers to the conntrack entries.
- */
-
-
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
-
-MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-MODULE_DESCRIPTION("H.323 'brute force' connection tracking module");
-MODULE_LICENSE("GPL");
-
-DECLARE_LOCK_EXTERN(ip_h323_lock);
-struct module *ip_nat_h323 = THIS_MODULE;
-
-#define DEBUGP(format, args...)
-
-
-static unsigned int 
-h225_nat_expected(struct sk_buff **pskb,
-		  unsigned int hooknum,
-		  struct ip_conntrack *ct,
-		  struct ip_nat_info *info);
-
-static unsigned int h225_nat_help(struct ip_conntrack *ct,
-				  struct ip_conntrack_expect *exp,
-			 	  struct ip_nat_info *info,
-			 	  enum ip_conntrack_info ctinfo,
-			 	  unsigned int hooknum,
-			 	  struct sk_buff **pskb);
-		  
-static struct ip_nat_helper h245 = 
-	{ { NULL, NULL },
-          "H.245",				/* name */
-	  0,					/* flags */
-	  NULL,					/* module */
-	  { { 0, { 0 } },			/* tuple */
-	    { 0, { 0 }, IPPROTO_TCP } },
-	  { { 0, { 0xFFFF } },			/* mask */
-	    { 0, { 0 }, 0xFFFF } },
-	  h225_nat_help,			/* helper */
-	  h225_nat_expected			/* expectfn */
-	};
-
-static unsigned int
-h225_nat_expected(struct sk_buff **pskb,
-		  unsigned int hooknum,
-		  struct ip_conntrack *ct,
-		  struct ip_nat_info *info)
-{
-	struct ip_nat_multi_range mr;
-	u_int32_t newdstip, newsrcip, newip;
-	u_int16_t port;
-	struct ip_ct_h225_expect *exp_info;
-	struct ip_ct_h225_master *master_info;
-	struct ip_conntrack *master = master_ct(ct);
-	unsigned int is_h225, ret;
-	
-	IP_NF_ASSERT(info);
-	IP_NF_ASSERT(master);
-
-	IP_NF_ASSERT(!(info->initialized & (1<<HOOK2MANIP(hooknum))));
-
-	DEBUGP("h225_nat_expected: We have a connection!\n");
-	master_info = &ct->master->expectant->help.ct_h225_info;
-	exp_info = &ct->master->help.exp_h225_info;
-
-	LOCK_BH(&ip_h323_lock);
-
-	DEBUGP("master: ");
-	DUMP_TUPLE(&master->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-	DUMP_TUPLE(&master->tuplehash[IP_CT_DIR_REPLY].tuple);
-	DEBUGP("conntrack: ");
-	DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-	if (exp_info->dir == IP_CT_DIR_ORIGINAL) {
-		/* Make connection go to the client. */
-		newdstip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-		newsrcip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-		DEBUGP("h225_nat_expected: %u.%u.%u.%u->%u.%u.%u.%u (to client)\n",
-		       NIPQUAD(newsrcip), NIPQUAD(newdstip));
-	} else {
-		/* Make the connection go to the server */
-		newdstip = master->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
-		newsrcip = master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-		DEBUGP("h225_nat_expected: %u.%u.%u.%u->%u.%u.%u.%u (to server)\n",
-		       NIPQUAD(newsrcip), NIPQUAD(newdstip));
-	}
-	port = exp_info->port;
-	is_h225 = master_info->is_h225 == H225_PORT;
-	UNLOCK_BH(&ip_h323_lock);
-	
-	if (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC)
-		newip = newsrcip;
-	else
-		newip = newdstip;
-
-	DEBUGP("h225_nat_expected: IP to %u.%u.%u.%u\n", NIPQUAD(newip));
-
-	mr.rangesize = 1;
-	/* We don't want to manip the per-protocol, just the IPs... */
-	mr.range[0].flags = IP_NAT_RANGE_MAP_IPS;
-	mr.range[0].min_ip = mr.range[0].max_ip = newip;
-
-	/* ... unless we're doing a MANIP_DST, in which case, make
-	   sure we map to the correct port */
-	if (HOOK2MANIP(hooknum) == IP_NAT_MANIP_DST) {
-		mr.range[0].flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
-		mr.range[0].min = mr.range[0].max
-			= ((union ip_conntrack_manip_proto)
-				{ port });
-	}
-
-	ret = ip_nat_setup_info(ct, &mr, hooknum);
-	
-	if (is_h225) {
-		DEBUGP("h225_nat_expected: H.225, setting NAT helper for %p\n", ct);
-		/* NAT expectfn called with ip_nat_lock write-locked */
-		info->helper = &h245;
-	}
-	return ret;
-}
-
-static int h323_signal_address_fixup(struct ip_conntrack *ct,
-			      	     struct sk_buff **pskb,
-			      	     enum ip_conntrack_info ctinfo)
-{
-	struct iphdr *iph = (*pskb)->nh.iph;
-	struct tcphdr *tcph = (void *)iph + iph->ihl*4;
-	unsigned char *data;
-	u_int32_t tcplen = (*pskb)->len - iph->ihl*4;
-	u_int32_t datalen = tcplen - tcph->doff*4;
-	struct ip_ct_h225_master *info = &ct->help.ct_h225_info; 
-	u_int32_t newip;
-	u_int16_t port;
-	u_int8_t buffer[6];
-	int i;
-
-	MUST_BE_LOCKED(&ip_h323_lock);
-
-	DEBUGP("h323_signal_address_fixup: %s %s\n",
-		between(info->seq[IP_CT_DIR_ORIGINAL], ntohl(tcph->seq), ntohl(tcph->seq) + datalen)
-			? "yes" : "no",
-		between(info->seq[IP_CT_DIR_REPLY], ntohl(tcph->seq), ntohl(tcph->seq) + datalen)
-			? "yes" : "no");
-	if (!(between(info->seq[IP_CT_DIR_ORIGINAL], ntohl(tcph->seq), ntohl(tcph->seq) + datalen)
-	      || between(info->seq[IP_CT_DIR_REPLY], ntohl(tcph->seq), ntohl(tcph->seq) + datalen)))
-		return 1;
-
-	DEBUGP("h323_signal_address_fixup: offsets %u + 6  and %u + 6 in %u\n", 
-		info->offset[IP_CT_DIR_ORIGINAL], 
-		info->offset[IP_CT_DIR_REPLY],
-		tcplen);
-	DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-	DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-
-	for (i = 0; i < IP_CT_DIR_MAX; i++) {
-		DEBUGP("h323_signal_address_fixup: %s %s\n",
-			info->dir == IP_CT_DIR_ORIGINAL ? "original" : "reply",
-			i == IP_CT_DIR_ORIGINAL ? "caller" : "callee");
-		if (!between(info->seq[i], ntohl(tcph->seq), 
-			     ntohl(tcph->seq) + datalen))
-			continue;
-		if (!between(info->seq[i] + 6, ntohl(tcph->seq),
-			     ntohl(tcph->seq) + datalen)) {
-			/* Partial retransmisison. It's a cracker being funky. */
-			if (net_ratelimit()) {
-				printk("H.323_NAT: partial packet %u/6 in %u/%u\n",
-				     info->seq[i],
-				     ntohl(tcph->seq),
-				     ntohl(tcph->seq) + datalen);
-			}
-			return 0;
-		}
-
-		/* Change address inside packet to match way we're mapping
-		   this connection. */
-		if (i == IP_CT_DIR_ORIGINAL) {
-			newip = ct->tuplehash[!info->dir].tuple.dst.ip;
-			port = ct->tuplehash[!info->dir].tuple.dst.u.tcp.port;
-		} else {
-			newip = ct->tuplehash[!info->dir].tuple.src.ip;
-			port = ct->tuplehash[!info->dir].tuple.src.u.tcp.port;
-		}
-
-		data = (char *) tcph + tcph->doff * 4 + info->offset[i];
-
-		DEBUGP("h323_signal_address_fixup: orig %s IP:port %u.%u.%u.%u:%u\n", 
-			i == IP_CT_DIR_ORIGINAL ? "source" : "dest  ", 
-		        data[0], data[1], data[2], data[3],
-		        (data[4] << 8 | data[5]));
-
-		/* Modify the packet */
-		memcpy(buffer, &newip, 4);
-		memcpy(buffer + 4, &port, 2);
-		if (!ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, info->offset[i],
-					      6, buffer, 6))
-			return 0;
-
-		DEBUGP("h323_signal_address_fixup:  new %s IP:port %u.%u.%u.%u:%u\n", 
-			i == IP_CT_DIR_ORIGINAL ? "source" : "dest  ", 
-		        data[0], data[1], data[2], data[3],
-		        (data[4] << 8 | data[5]));
-	}
-
-	return 1;
-}
-
-static int h323_data_fixup(struct ip_ct_h225_expect *info,
-			   struct ip_conntrack *ct,
-			   struct sk_buff **pskb,
-			   enum ip_conntrack_info ctinfo,
-			   struct ip_conntrack_expect *expect)
-{
-	u_int32_t newip;
-	u_int16_t port;
-	u_int8_t buffer[6];
-	struct ip_conntrack_tuple newtuple;
-	struct iphdr *iph = (*pskb)->nh.iph;
-	struct tcphdr *tcph = (void *)iph + iph->ihl*4;
-	unsigned char *data;
-	u_int32_t tcplen = (*pskb)->len - iph->ihl*4;
-	struct ip_ct_h225_master *master_info = &ct->help.ct_h225_info;
-	int is_h225;
-
-	MUST_BE_LOCKED(&ip_h323_lock);
-	DEBUGP("h323_data_fixup: offset %u + 6 in %u\n", info->offset, tcplen);
-	DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-	DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-
-	if (!between(expect->seq + 6, ntohl(tcph->seq),
-		    ntohl(tcph->seq) + tcplen - tcph->doff * 4)) {
-		/* Partial retransmisison. It's a cracker being funky. */
-		if (net_ratelimit()) {
-			printk("H.323_NAT: partial packet %u/6 in %u/%u\n",
-			     expect->seq,
-			     ntohl(tcph->seq),
-			     ntohl(tcph->seq) + tcplen - tcph->doff * 4);
-		}
-		return 0;
-	}
-
-	/* Change address inside packet to match way we're mapping
-	   this connection. */
-	if (info->dir == IP_CT_DIR_REPLY) {
-		/* Must be where client thinks server is */
-		newip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-		/* Expect something from client->server */
-		newtuple.src.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-		newtuple.dst.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-	} else {
-		/* Must be where server thinks client is */
-		newip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-		/* Expect something from server->client */
-		newtuple.src.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
-		newtuple.dst.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-	}
-
-	is_h225 = (master_info->is_h225 == H225_PORT);
-
-	if (is_h225) {
-		newtuple.dst.protonum = IPPROTO_TCP;
-		newtuple.src.u.tcp.port = expect->tuple.src.u.tcp.port;
-	} else {
-		newtuple.dst.protonum = IPPROTO_UDP;
-		newtuple.src.u.udp.port = expect->tuple.src.u.udp.port;
-	}
-	
-	/* Try to get same port: if not, try to change it. */
-	for (port = ntohs(info->port); port != 0; port++) {
-		if (is_h225)
-			newtuple.dst.u.tcp.port = htons(port);
-		else
-			newtuple.dst.u.udp.port = htons(port);
-
-		if (ip_conntrack_change_expect(expect, &newtuple) == 0)
-			break;
-	}
-	if (port == 0) {
-		DEBUGP("h323_data_fixup: no free port found!\n");
-		return 0;
-	}
-
-	port = htons(port);
-
-	data = (char *) tcph + tcph->doff * 4 + info->offset;
-
-	DEBUGP("h323_data_fixup: orig IP:port %u.%u.%u.%u:%u\n", 
-	        data[0], data[1], data[2], data[3],
-	        (data[4] << 8 | data[5]));
-
-	/* Modify the packet */
-	memcpy(buffer, &newip, 4);
-	memcpy(buffer + 4, &port, 2);
-	if (!ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, info->offset,
-				      6, buffer, 6))
-		return 0;
-	
-	DEBUGP("h323_data_fixup: new IP:port %u.%u.%u.%u:%u\n", 
-	        data[0], data[1], data[2], data[3],
-	        (data[4] << 8 | data[5]));
-
-	return 1;
-}
-
-static unsigned int h225_nat_help(struct ip_conntrack *ct,
-				  struct ip_conntrack_expect *exp,
-			 	  struct ip_nat_info *info,
-			 	  enum ip_conntrack_info ctinfo,
-			 	  unsigned int hooknum,
-			 	  struct sk_buff **pskb)
-{
-	int dir;
-	struct ip_ct_h225_expect *exp_info;
-	
-	/* Only mangle things once: original direction in POST_ROUTING
-	   and reply direction on PRE_ROUTING. */
-	dir = CTINFO2DIR(ctinfo);
-	DEBUGP("nat_h323: dir %s at hook %s\n",
-	       dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY",
-	       hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
-	       : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
-	       : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT" : "???");
-	if (!((hooknum == NF_IP_POST_ROUTING && dir == IP_CT_DIR_ORIGINAL)
-	      || (hooknum == NF_IP_PRE_ROUTING && dir == IP_CT_DIR_REPLY))) {
-		DEBUGP("nat_h323: Not touching dir %s at hook %s\n",
-		       dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY",
-		       hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
-		       : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
-		       : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT" : "???");
-		return NF_ACCEPT;
-	}
-
-	if (!exp) {
-		LOCK_BH(&ip_h323_lock);
-		if (!h323_signal_address_fixup(ct, pskb, ctinfo)) {
-			UNLOCK_BH(&ip_h323_lock);
-			return NF_DROP;
-		}
-		UNLOCK_BH(&ip_h323_lock);
-		return NF_ACCEPT;
-	}
-		
-	exp_info = &exp->help.exp_h225_info;
-
-	LOCK_BH(&ip_h323_lock);
-	if (!h323_data_fixup(exp_info, ct, pskb, ctinfo, exp)) {
-		UNLOCK_BH(&ip_h323_lock);
-		return NF_DROP;
-	}
-	UNLOCK_BH(&ip_h323_lock);
-
-	return NF_ACCEPT;
-}
-
-static struct ip_nat_helper h225 = 
-	{ { NULL, NULL },
-	  "H.225",					/* name */
-	  IP_NAT_HELPER_F_ALWAYS, 			/* flags */
-	  THIS_MODULE,					/* module */
-	  { { 0, { __constant_htons(H225_PORT) } },	/* tuple */
-	    { 0, { 0 }, IPPROTO_TCP } },
-	  { { 0, { 0xFFFF } },				/* mask */
-	    { 0, { 0 }, 0xFFFF } },
-	  h225_nat_help,				/* helper */
-	  h225_nat_expected				/* expectfn */
-	};
-
-static int __init init(void)
-{
-	int ret;
-	
-	ret = ip_nat_helper_register(&h225);
-
-	if (ret != 0)
-		printk("ip_nat_h323: cannot initialize the module!\n");
-
-	return ret;
-}
-
-static void __exit fini(void)
-{
-	ip_nat_helper_unregister(&h225);
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_helper.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_helper.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_helper.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_helper.c	2004-05-09 04:13:03.000000000 -0400
@@ -8,9 +8,6 @@
  *		- add support for SACK adjustment 
  *	14 Mar 2002 Harald Welte <laforge@gnumonks.org>:
  *		- merge SACK support into newnat API
- *	16 Aug 2002 Brian J. Murrell <netfilter@interlinx.bc.ca>:
- *		- make ip_nat_resize_packet more generic (TCP and UDP)
- *		- add ip_nat_mangle_udp_packet
  */
 #include <linux/version.h>
 #include <linux/config.h>
@@ -25,7 +22,6 @@
 #include <net/icmp.h>
 #include <net/ip.h>
 #include <net/tcp.h>
-#include <net/udp.h>
 
 #define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
 #define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
@@ -38,8 +34,13 @@
 #include <linux/netfilter_ipv4/ip_nat_helper.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
+#if 0
+#define DEBUGP printk
+#define DUMP_OFFSET(x)	printk("offset_before=%d, offset_after=%d, correction_pos=%u\n", x->offset_before, x->offset_after, x->correction_pos);
+#else
 #define DEBUGP(format, args...)
 #define DUMP_OFFSET(x)
+#endif
 
 DECLARE_LOCK(ip_nat_seqofs_lock);
 			 
@@ -50,12 +51,18 @@
 		     int new_size)
 {
 	struct iphdr *iph;
+	struct tcphdr *tcph;
+	void *data;
 	int dir;
 	struct ip_nat_seq *this_way, *other_way;
 
 	DEBUGP("ip_nat_resize_packet: old_size = %u, new_size = %u\n",
 		(*skb)->len, new_size);
 
+	iph = (*skb)->nh.iph;
+	tcph = (void *)iph + iph->ihl*4;
+	data = (void *)tcph + tcph->doff*4;
+
 	dir = CTINFO2DIR(ctinfo);
 
 	this_way = &ct->nat.info.seq[dir];
@@ -77,9 +84,8 @@
 	}
 
 	iph = (*skb)->nh.iph;
-	if (iph->protocol == IPPROTO_TCP) {
-		struct tcphdr *tcph = (void *)iph + iph->ihl*4;
-		void *data = (void *)tcph + tcph->doff*4;
+	tcph = (void *)iph + iph->ihl*4;
+	data = (void *)tcph + tcph->doff*4;
 
 		DEBUGP("ip_nat_resize_packet: Seq_offset before: ");
 		DUMP_OFFSET(this_way);
@@ -95,20 +101,25 @@
 			this_way->correction_pos = ntohl(tcph->seq);
 			this_way->offset_before = this_way->offset_after;
 			this_way->offset_after = (int32_t)
-				this_way->offset_before + new_size -
-				(*skb)->len;
+			this_way->offset_before + new_size - (*skb)->len;
 		}
 
 		UNLOCK_BH(&ip_nat_seqofs_lock);
 
 		DEBUGP("ip_nat_resize_packet: Seq_offset after: ");
 		DUMP_OFFSET(this_way);
-	}
 	
 	return 1;
 }
 
 
+/* Generic function for mangling variable-length address changes inside
+ * NATed connections (like the PORT XXX,XXX,XXX,XXX,XXX,XXX command in FTP).
+ *
+ * Takes care about all the nasty sequence number changes, checksumming,
+ * skb enlargement, ...
+ *
+ * */
 int 
 ip_nat_mangle_tcp_packet(struct sk_buff **skb,
 			 struct ip_conntrack *ct,
@@ -163,7 +174,6 @@
 	tcph = (void *)iph + iph->ihl*4;
 	data = (void *)tcph + tcph->doff*4;
 
-	if (rep_len != match_len)
 		/* move post-replacement */
 		memmove(data + match_offset + rep_len,
 			data + match_offset + match_len,
@@ -198,104 +208,6 @@
 	return 1;
 }
 			
-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,
-			 char *rep_buffer,
-			 unsigned int rep_len)
-{
-	struct iphdr *iph = (*skb)->nh.iph;
-	struct udphdr *udph = (void *)iph + iph->ihl * 4;
-	unsigned char *data;
-	u_int32_t udplen, newlen, newudplen;
-
-	udplen = (*skb)->len - iph->ihl*4;
-	newudplen = udplen - match_len + rep_len;
-	newlen = iph->ihl*4 + newudplen;
-
-	if (newlen > 65535) {
-		if (net_ratelimit())
-			printk("ip_nat_mangle_udp_packet: nat'ed packet "
-				"exceeds maximum packet size\n");
-		return 0;
-	}
-
-	if ((*skb)->len != newlen) {
-		if (!ip_nat_resize_packet(skb, ct, ctinfo, newlen)) {
-			printk("resize_packet failed!!\n");
-			return 0;
-		}
-	}
-
-	/* Alexey says: if a hook changes _data_ ... it can break
-	   original packet sitting in tcp queue and this is fatal */
-	if (skb_cloned(*skb)) {
-		struct sk_buff *nskb = skb_copy(*skb, GFP_ATOMIC);
-		if (!nskb) {
-			if (net_ratelimit())
-				printk("Out of memory cloning TCP packet\n");
-			return 0;
-		}
-		/* Rest of kernel will get very unhappy if we pass it
-		   a suddenly-orphaned skbuff */
-		if ((*skb)->sk)
-			skb_set_owner_w(nskb, (*skb)->sk);
-		kfree_skb(*skb);
-		*skb = nskb;
-	}
-
-	/* skb may be copied !! */
-	iph = (*skb)->nh.iph;
-	udph = (void *)iph + iph->ihl*4;
-	data = (void *)udph + sizeof(struct udphdr);
-
-	if (rep_len != match_len)
-		/* move post-replacement */
-		memmove(data + match_offset + rep_len,
-			data + match_offset + match_len,
-			(*skb)->tail - (data + match_offset + match_len));
-
-	/* insert data from buffer */
-	memcpy(data + match_offset, rep_buffer, rep_len);
-
-	/* update skb info */
-	if (newlen > (*skb)->len) {
-		DEBUGP("ip_nat_mangle_udp_packet: Extending packet by "
-			"%u to %u bytes\n", newlen - (*skb)->len, newlen);
-		skb_put(*skb, newlen - (*skb)->len);
-	} else {
-		DEBUGP("ip_nat_mangle_udp_packet: Shrinking packet from "
-			"%u to %u bytes\n", (*skb)->len, newlen);
-		skb_trim(*skb, newlen);
-	}
-
-	/* update the length of the UDP and IP packets to the new values*/
-	udph->len = htons((*skb)->len - iph->ihl*4);
-	iph->tot_len = htons(newlen);
-
-	/* fix udp checksum if udp checksum was previously calculated */
-	if ((*skb)->csum != 0) {
-		(*skb)->csum = csum_partial((char *)udph +
-					    sizeof(struct udphdr),
-					    newudplen - sizeof(struct udphdr),
-					    0);
-
-		udph->check = 0;
-		udph->check = csum_tcpudp_magic(iph->saddr, iph->daddr,
-						newudplen, IPPROTO_UDP,
-						csum_partial((char *)udph,
-							 sizeof(struct udphdr),
-							(*skb)->csum));
-	}
-
-	ip_send_check(iph);
-
-	return 1;
-}
-
 /* Adjust one found SACK option including checksum correction */
 static void
 sack_adjust(struct tcphdr *tcph, 
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_mms.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_mms.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_mms.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_mms.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,330 +0,0 @@
-/* MMS extension for TCP NAT alteration.
- * (C) 2002 by Filip Sneppe <filip.sneppe@cronos.be>
- * based on ip_nat_ftp.c and ip_nat_irc.c
- *
- * ip_nat_mms.c v0.3 2002-09-22
- *
- *      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_nat_mms.o ports=port1,port2,...port<MAX_PORTS>
- *
- *      Please give the ports of all MMS servers You wish to connect to.
- *      If you don't specify ports, the default will be TCP port 1755.
- *
- *      More info on MMS protocol, firewalls and NAT:
- *      http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwmt/html/MMSFirewall.asp
- *      http://www.microsoft.com/windows/windowsmedia/serve/firewall.asp
- *
- *      The SDP project people are reverse-engineering MMS:
- *      http://get.to/sdp
- */
-
-
-#include <linux/module.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_conntrack_mms.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-
-#define DEBUGP(format, args...)
-#define DUMP_BYTES(address, counter)
-
-#define MAX_PORTS 8
-static int ports[MAX_PORTS];
-static int ports_c = 0;
-
-#ifdef MODULE_PARM
-MODULE_PARM(ports, "1-" __MODULE_STRING(MAX_PORTS) "i");
-#endif
-
-MODULE_AUTHOR("Filip Sneppe <filip.sneppe@cronos.be>");
-MODULE_DESCRIPTION("Microsoft Windows Media Services (MMS) NAT module");
-MODULE_LICENSE("GPL");
-
-DECLARE_LOCK_EXTERN(ip_mms_lock);
-
-
-static int mms_data_fixup(const struct ip_ct_mms_expect *ct_mms_info,
-                          struct ip_conntrack *ct,
-                          struct sk_buff **pskb,
-                          enum ip_conntrack_info ctinfo,
-                          struct ip_conntrack_expect *expect)
-{
-	u_int32_t newip;
-	struct ip_conntrack_tuple t;
-	struct iphdr *iph = (*pskb)->nh.iph;
-	struct tcphdr *tcph = (void *) iph + iph->ihl * 4;
-	char *data = (char *)tcph + tcph->doff * 4;
-	int i, j, k, port;
-	u_int16_t mms_proto;
-
-	u_int32_t *mms_chunkLenLV    = (u_int32_t *)(data + MMS_SRV_CHUNKLENLV_OFFSET);
-	u_int32_t *mms_chunkLenLM    = (u_int32_t *)(data + MMS_SRV_CHUNKLENLM_OFFSET);
-	u_int32_t *mms_messageLength = (u_int32_t *)(data + MMS_SRV_MESSAGELENGTH_OFFSET);
-
-	int zero_padding;
-
-	char buffer[28];         /* "\\255.255.255.255\UDP\65635" * 2 (for unicode) */
-	char unicode_buffer[75]; /* 27*2 (unicode) + 20 + 1 */
-	char proto_string[6];
-	
-	MUST_BE_LOCKED(&ip_mms_lock);
-
-	/* what was the protocol again ? */
-	mms_proto = expect->tuple.dst.protonum;
-	sprintf(proto_string, "%u", mms_proto);
-	
-	DEBUGP("ip_nat_mms: mms_data_fixup: info (seq %u + %u) in %u, proto %s\n",
-	       expect->seq, ct_mms_info->len, ntohl(tcph->seq),
-	       mms_proto == IPPROTO_UDP ? "UDP"
-	       : mms_proto == IPPROTO_TCP ? "TCP":proto_string);
-	
-	newip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-
-	/* Alter conntrack's expectations. */
-	t = expect->tuple;
-	t.dst.ip = newip;
-	for (port = ct_mms_info->port; port != 0; port++) {
-		t.dst.u.tcp.port = htons(port);
-		if (ip_conntrack_change_expect(expect, &t) == 0) {
-			DEBUGP("ip_nat_mms: mms_data_fixup: using port %d\n", port);
-			break;
-		}
-	}
-	
-	if(port == 0)
-		return 0;
-
-	sprintf(buffer, "\\\\%u.%u.%u.%u\\%s\\%u",
-	        NIPQUAD(newip),
-		expect->tuple.dst.protonum == IPPROTO_UDP ? "UDP"
-		: expect->tuple.dst.protonum == IPPROTO_TCP ? "TCP":proto_string,
-		port);
-	DEBUGP("ip_nat_mms: new unicode string=%s\n", buffer);
-	
-	memset(unicode_buffer, 0, sizeof(char)*75);
-
-	for (i=0; i<strlen(buffer); ++i)
-		*(unicode_buffer+i*2)=*(buffer+i);
-	
-	DEBUGP("ip_nat_mms: mms_data_fixup: padding: %u len: %u\n", ct_mms_info->padding, ct_mms_info->len);
-	DEBUGP("ip_nat_mms: mms_data_fixup: offset: %u\n", MMS_SRV_UNICODE_STRING_OFFSET+ct_mms_info->len);
-	DUMP_BYTES(data+MMS_SRV_UNICODE_STRING_OFFSET, 60);
-	
-	/* add end of packet to it */
-	for (j=0; j<ct_mms_info->padding; ++j) {
-		DEBUGP("ip_nat_mms: mms_data_fixup: i=%u j=%u byte=%u\n", 
-		       i, j, (u8)*(data+MMS_SRV_UNICODE_STRING_OFFSET+ct_mms_info->len+j));
-		*(unicode_buffer+i*2+j) = *(data+MMS_SRV_UNICODE_STRING_OFFSET+ct_mms_info->len+j);
-	}
-
-	/* pad with zeroes at the end ? see explanation of weird math below */
-	zero_padding = (8-(strlen(buffer)*2 + ct_mms_info->padding + 4)%8)%8;
-	for (k=0; k<zero_padding; ++k)
-		*(unicode_buffer+i*2+j+k)= (char)0;
-	
-	DEBUGP("ip_nat_mms: mms_data_fixup: zero_padding = %u\n", zero_padding);
-	DEBUGP("ip_nat_mms: original=> chunkLenLV=%u chunkLenLM=%u messageLength=%u\n",
-	       *mms_chunkLenLV, *mms_chunkLenLM, *mms_messageLength);
-	
-	/* explanation, before I forget what I did:
-	   strlen(buffer)*2 + ct_mms_info->padding + 4 must be divisable by 8;
-	   divide by 8 and add 3 to compute the mms_chunkLenLM field,
-	   but note that things may have to be padded with zeroes to align by 8 
-	   bytes, hence we add 7 and divide by 8 to get the correct length */ 
-	*mms_chunkLenLM    = (u_int32_t) (3+(strlen(buffer)*2+ct_mms_info->padding+11)/8);
-	*mms_chunkLenLV    = *mms_chunkLenLM+2;
-	*mms_messageLength = *mms_chunkLenLV*8;
-	
-	DEBUGP("ip_nat_mms: modified=> chunkLenLV=%u chunkLenLM=%u messageLength=%u\n",
-	       *mms_chunkLenLV, *mms_chunkLenLM, *mms_messageLength);
-	
-	ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, 
-	                         expect->seq - ntohl(tcph->seq),
-	                         ct_mms_info->len + ct_mms_info->padding, unicode_buffer,
-	                         strlen(buffer)*2 + ct_mms_info->padding + zero_padding);
-	DUMP_BYTES(unicode_buffer, 60);
-	
-	return 1;
-}
-
-static unsigned int
-mms_nat_expected(struct sk_buff **pskb,
-                 unsigned int hooknum,
-                 struct ip_conntrack *ct,
-                 struct ip_nat_info *info)
-{
-	struct ip_nat_multi_range mr;
-	u_int32_t newdstip, newsrcip, newip;
-
-	struct ip_conntrack *master = master_ct(ct);
-
-	IP_NF_ASSERT(info);
-	IP_NF_ASSERT(master);
-
-	IP_NF_ASSERT(!(info->initialized & (1 << HOOK2MANIP(hooknum))));
-
-	DEBUGP("ip_nat_mms: mms_nat_expected: We have a connection!\n");
-
-	newdstip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-	newsrcip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-	DEBUGP("ip_nat_mms: mms_nat_expected: hook %s: newsrc->newdst %u.%u.%u.%u->%u.%u.%u.%u\n",
-	       hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
-	       : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
-	       : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT" : "???",
-	       NIPQUAD(newsrcip), NIPQUAD(newdstip));
-
-	if (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC)
-		newip = newsrcip;
-	else
-		newip = newdstip;
-
-	DEBUGP("ip_nat_mms: mms_nat_expected: IP to %u.%u.%u.%u\n", NIPQUAD(newip));
-
-	mr.rangesize = 1;
-	/* We don't want to manip the per-protocol, just the IPs. */
-	mr.range[0].flags = IP_NAT_RANGE_MAP_IPS;
-	mr.range[0].min_ip = mr.range[0].max_ip = newip;
-
-	return ip_nat_setup_info(ct, &mr, hooknum);
-}
-
-
-static unsigned int mms_nat_help(struct ip_conntrack *ct,
-			 struct ip_conntrack_expect *exp,
-			 struct ip_nat_info *info,
-			 enum ip_conntrack_info ctinfo,
-			 unsigned int hooknum,
-			 struct sk_buff **pskb)
-{
-	struct iphdr *iph = (*pskb)->nh.iph;
-	struct tcphdr *tcph = (void *) iph + iph->ihl * 4;
-	unsigned int datalen;
-	int dir;
-	struct ip_ct_mms_expect *ct_mms_info;
-
-	if (!exp)
-		DEBUGP("ip_nat_mms: no exp!!");
-
-	ct_mms_info = &exp->help.exp_mms_info;
-	
-	/* Only mangle things once: original direction in POST_ROUTING
-	   and reply direction on PRE_ROUTING. */
-	dir = CTINFO2DIR(ctinfo);
-	if (!((hooknum == NF_IP_POST_ROUTING && dir == IP_CT_DIR_ORIGINAL)
-	    ||(hooknum == NF_IP_PRE_ROUTING && dir == IP_CT_DIR_REPLY))) {
-		DEBUGP("ip_nat_mms: mms_nat_help: not touching dir %s at hook %s\n",
-		       dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY",
-		       hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
-		       : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
-		       : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT" : "???");
-		return NF_ACCEPT;
-	}
-	DEBUGP("ip_nat_mms: mms_nat_help: beyond not touching (dir %s at hook %s)\n",
-	       dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY",
-	       hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
-	       : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
-	       : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT" : "???");
-	
-	datalen = (*pskb)->len - iph->ihl * 4 - tcph->doff * 4;
-	
-	DEBUGP("ip_nat_mms: mms_nat_help: %u+%u=%u %u %u\n", exp->seq, ct_mms_info->len,
-	       exp->seq + ct_mms_info->len,
-	       ntohl(tcph->seq),
-	       ntohl(tcph->seq) + datalen);
-	
-	LOCK_BH(&ip_mms_lock);
-	/* Check wether the whole IP/proto/port pattern is carried in the payload */
-	if (between(exp->seq + ct_mms_info->len,
-	    ntohl(tcph->seq),
-	    ntohl(tcph->seq) + datalen)) {
-		if (!mms_data_fixup(ct_mms_info, ct, pskb, ctinfo, exp)) {
-			UNLOCK_BH(&ip_mms_lock);
-			return NF_DROP;
-		}
-	} else {
-		/* Half a match?  This means a partial retransmisison.
-		   It's a cracker being funky. */
-		if (net_ratelimit()) {
-			printk("ip_nat_mms: partial packet %u/%u in %u/%u\n",
-			       exp->seq, ct_mms_info->len,
-			       ntohl(tcph->seq),
-			       ntohl(tcph->seq) + datalen);
-		}
-		UNLOCK_BH(&ip_mms_lock);
-		return NF_DROP;
-	}
-	UNLOCK_BH(&ip_mms_lock);
-	
-	return NF_ACCEPT;
-}
-
-static struct ip_nat_helper mms[MAX_PORTS];
-static char mms_names[MAX_PORTS][10];
-
-/* Not __exit: called from init() */
-static void fini(void)
-{
-	int i;
-
-	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
-		DEBUGP("ip_nat_mms: unregistering helper for port %d\n", ports[i]);
-		ip_nat_helper_unregister(&mms[i]);
-	}
-}
-
-static int __init init(void)
-{
-	int i, ret = 0;
-	char *tmpname;
-
-	if (ports[0] == 0)
-		ports[0] = MMS_PORT;
-
-	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
-
-		memset(&mms[i], 0, sizeof(struct ip_nat_helper));
-
-		mms[i].tuple.dst.protonum = IPPROTO_TCP;
-		mms[i].tuple.src.u.tcp.port = htons(ports[i]);
-		mms[i].mask.dst.protonum = 0xFFFF;
-		mms[i].mask.src.u.tcp.port = 0xFFFF;
-		mms[i].help = mms_nat_help;
-		mms[i].me = THIS_MODULE;
-		mms[i].flags = 0;
-		mms[i].expect = mms_nat_expected;
-
-		tmpname = &mms_names[i][0];
-		if (ports[i] == MMS_PORT)
-			sprintf(tmpname, "mms");
-		else
-			sprintf(tmpname, "mms-%d", i);
-		mms[i].name = tmpname;
-
-		DEBUGP("ip_nat_mms: register helper for port %d\n",
-				ports[i]);
-		ret = ip_nat_helper_register(&mms[i]);
-
-		if (ret) {
-			printk("ip_nat_mms: error registering "
-			       "helper for port %d\n", ports[i]);
-			fini();
-			return ret;
-		}
-		ports_c++;
-	}
-
-	return ret;
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_pptp.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_pptp.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_pptp.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_pptp.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,412 +0,0 @@
-/*
- * ip_nat_pptp.c	- Version 1.11
- *
- * NAT support for PPTP (Point to Point Tunneling Protocol).
- * PPTP is a a protocol for creating virtual private networks.
- * It is a specification defined by Microsoft and some vendors
- * working with Microsoft.  PPTP is built on top of a modified
- * version of the Internet Generic Routing Encapsulation Protocol.
- * GRE is defined in RFC 1701 and RFC 1702.  Documentation of
- * PPTP can be found in RFC 2637
- *
- * (C) 2000-2002 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- * TODO: - Support for multiple calls within one session
- * 	   (needs netfilter newnat code)
- * 	 - NAT to a unique tuple, not to TCP source port
- * 	   (needs netfilter tuple reservation)
- * 	 - Support other NAT scenarios than SNAT of PNS
- * 
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_pptp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter NAT helper module for PPTP");
-
-
-#define DEBUGP(format, args...)
-
-static unsigned int
-pptp_nat_expected(struct sk_buff **pskb,
-		  unsigned int hooknum,
-		  struct ip_conntrack *ct,
-		  struct ip_nat_info *info)
-{
-	struct ip_conntrack *master = master_ct(ct);
-	struct ip_nat_multi_range mr;
-	struct ip_ct_pptp_master *ct_pptp_info;
-	struct ip_nat_pptp *nat_pptp_info;
-	u_int32_t newsrcip, newdstip, newcid;
-	int ret;
-
-	IP_NF_ASSERT(info);
-	IP_NF_ASSERT(master);
-	IP_NF_ASSERT(!(info->initialized & (1 << HOOK2MANIP(hooknum))));
-
-	DEBUGP("we have a connection!\n");
-
-	LOCK_BH(&ip_pptp_lock);
-	ct_pptp_info = &master->help.ct_pptp_info;
-	nat_pptp_info = &master->nat.help.nat_pptp_info;
-
-	/* need to alter GRE tuple because conntrack expectfn() used 'wrong'
-	 * (unmanipulated) values */
-	if (hooknum == NF_IP_PRE_ROUTING) {
-		DEBUGP("completing tuples with NAT info \n");
-		/* we can do this, since we're unconfirmed */
-		if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key ==
-			htonl(ct_pptp_info->pac_call_id)) {	
-			/* assume PNS->PAC */
-			ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
-				htonl(nat_pptp_info->pns_call_id);
-//			ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u.gre.key =
-//				htonl(nat_pptp_info->pac_call_id);
-			ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-				htonl(nat_pptp_info->pns_call_id);
-		} else {
-			/* assume PAC->PNS */
-			DEBUGP("WRONG DIRECTION\n");
-			ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
-				htonl(nat_pptp_info->pac_call_id);
-			ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-				htonl(nat_pptp_info->pns_call_id);
-		}
-	}
-
-	if (HOOK2MANIP(hooknum) == IP_NAT_MANIP_DST) {
-		newdstip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-		newcid = htonl(master->nat.help.nat_pptp_info.pac_call_id);
-
-		mr.rangesize = 1;
-		mr.range[0].flags = IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED;
-		mr.range[0].min_ip = mr.range[0].max_ip = newdstip;
-		mr.range[0].min = mr.range[0].max = 
-			((union ip_conntrack_manip_proto ) { newcid }); 
-		DEBUGP("change dest ip to %u.%u.%u.%u\n", 
-			NIPQUAD(newdstip));
-		DEBUGP("change dest key to 0x%x\n", ntohl(newcid));
-		ret = ip_nat_setup_info(ct, &mr, hooknum);
-	} else {
-		newsrcip = master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-		/* nat_multi_range is in network byte order, and GRE tuple
-		 * is 32 bits, not 16 like callID */
-		newcid = htonl(master->help.ct_pptp_info.pns_call_id);
-
-		mr.rangesize = 1;
-		mr.range[0].flags = IP_NAT_RANGE_MAP_IPS
-			            |IP_NAT_RANGE_PROTO_SPECIFIED;
-		mr.range[0].min_ip = mr.range[0].max_ip = newsrcip;
-		mr.range[0].min = mr.range[0].max = 
-			((union ip_conntrack_manip_proto ) { newcid });
-		DEBUGP("change src ip to %u.%u.%u.%u\n", 
-			NIPQUAD(newsrcip));
-		DEBUGP("change 'src' key to 0x%x\n", ntohl(newcid));
-		ret = ip_nat_setup_info(ct, &mr, hooknum);
-	}
-
-	UNLOCK_BH(&ip_pptp_lock);
-
-	return ret;
-
-}
-
-/* outbound packets == from PNS to PAC */
-static inline unsigned int
-pptp_outbound_pkt(struct tcphdr *tcph, struct pptp_pkt_hdr *pptph,
-		  size_t datalen,
-		  struct ip_conntrack *ct,
-		  enum ip_conntrack_info ctinfo,
-		  struct ip_conntrack_expect *exp)
-
-{
-	struct PptpControlHeader *ctlh;
-	union pptp_ctrl_union pptpReq;
-	struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
-	struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
-
-	u_int16_t msg, *cid = NULL, new_callid;
-
-	ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
-	pptpReq.rawreq = (void *) ((void *) ctlh + sizeof(*ctlh));
-
-	new_callid = htons(ct_pptp_info->pns_call_id);
-	
-	switch (msg = ntohs(ctlh->messageType)) {
-		case PPTP_OUT_CALL_REQUEST:
-			cid = &pptpReq.ocreq->callID;
-
-			/* save original call ID in nat_info */
-			nat_pptp_info->pns_call_id = ct_pptp_info->pns_call_id;
-
-			new_callid = tcph->source;
-			/* save new call ID in ct info */
-			ct_pptp_info->pns_call_id = ntohs(new_callid);
-			break;
-		case PPTP_IN_CALL_REPLY:
-			cid = &pptpReq.icreq->callID;
-			break;
-		case PPTP_CALL_CLEAR_REQUEST:
-			cid = &pptpReq.clrreq->callID;
-			break;
-		case PPTP_CALL_DISCONNECT_NOTIFY:
-			cid = &pptpReq.disc->callID;
-			break;
-
-		default:
-			DEBUGP("unknown outbound packet 0x%04x:%s\n", msg,
-			      (msg <= PPTP_MSG_MAX)? strMName[msg]:strMName[0]);
-			/* fall through */
-
-		case PPTP_SET_LINK_INFO:
-			/* only need to NAT in case PAC is behind NAT box */
-		case PPTP_START_SESSION_REQUEST:
-		case PPTP_START_SESSION_REPLY:
-		case PPTP_STOP_SESSION_REQUEST:
-		case PPTP_STOP_SESSION_REPLY:
-		case PPTP_ECHO_REQUEST:
-		case PPTP_ECHO_REPLY:
-			/* no need to alter packet */
-			return NF_ACCEPT;
-	}
-
-	IP_NF_ASSERT(cid);
-
-	DEBUGP("altering call id from 0x%04x to 0x%04x\n",
-		ntohs(*cid), ntohs(new_callid));
-	/* mangle packet */
-	tcph->check = ip_nat_cheat_check(*cid^0xFFFF, 
-					 new_callid, tcph->check);
-	*cid = new_callid;
-
-	return NF_ACCEPT;
-}
-
-/* inbound packets == from PAC to PNS */
-static inline unsigned int
-pptp_inbound_pkt(struct tcphdr *tcph, struct pptp_pkt_hdr *pptph,
-		 size_t datalen,
-		 struct ip_conntrack *ct,
-		 enum ip_conntrack_info ctinfo,
-		 struct ip_conntrack_expect *oldexp)
-{
-	struct PptpControlHeader *ctlh;
-	union pptp_ctrl_union pptpReq;
-	struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
-	struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
-
-	u_int16_t msg, new_cid = 0, new_pcid, *pcid = NULL, *cid = NULL;
-	u_int32_t old_dst_ip;
-
-	struct ip_conntrack_tuple t;
-
-	ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
-	pptpReq.rawreq = (void *) ((void *) ctlh + sizeof(*ctlh));
-
-	new_pcid = htons(nat_pptp_info->pns_call_id);
-
-	switch (msg = ntohs(ctlh->messageType)) {
-	case PPTP_OUT_CALL_REPLY:
-		pcid = &pptpReq.ocack->peersCallID;	
-		cid = &pptpReq.ocack->callID;
-		if (!oldexp) {
-			DEBUGP("outcall but no expectation\n");
-			break;
-		}
-		old_dst_ip = oldexp->tuple.dst.ip;
-		t = oldexp->tuple;
-
-		/* save original PAC call ID in nat_info */
-		nat_pptp_info->pac_call_id = ct_pptp_info->pac_call_id;
-
-		/* store new callID in ct_info, so conntrack works */
-		//ct_pptp_info->pac_call_id = ntohs(tcph->source);
-		//new_cid = htons(ct_pptp_info->pac_call_id);
-
-		/* alter expectation */
-		if (t.dst.ip == ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip) {
-			/* expectation for PNS->PAC direction */
-			t.dst.u.gre.key = htonl(ct_pptp_info->pac_call_id);
-			t.src.u.gre.key = htonl(nat_pptp_info->pns_call_id);
-		} else {
-			/* expectation for PAC->PNS direction */
-			t.dst.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-			DEBUGP("EXPECTATION IN WRONG DIRECTION!!!\n");
-		}
-
-		if (!ip_conntrack_change_expect(oldexp, &t)) {
-			DEBUGP("successfully changed expect\n");
-		} else {
-			DEBUGP("can't change expect\n");
-		}
-		ip_ct_gre_keymap_change(oldexp->proto.gre.keymap_orig, &t);
-		/* reply keymap */
-		t.src.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
-		t.dst.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-		t.src.u.gre.key = htonl(nat_pptp_info->pac_call_id);
-		t.dst.u.gre.key = htonl(ct_pptp_info->pns_call_id);
-		ip_ct_gre_keymap_change(oldexp->proto.gre.keymap_reply, &t);
-
-		break;
-	case PPTP_IN_CALL_CONNECT:
-		pcid = &pptpReq.iccon->peersCallID;
-		if (!oldexp)
-			break;
-		old_dst_ip = oldexp->tuple.dst.ip;
-		t = oldexp->tuple;
-
-		/* alter expectation, no need for callID */
-		if (t.dst.ip == ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip) {
-			/* expectation for PNS->PAC direction */
-			t.src.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-		} else {
-			/* expectation for PAC->PNS direction */
-			t.dst.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-		}
-
-		if (!ip_conntrack_change_expect(oldexp, &t)) {
-			DEBUGP("successfully changed expect\n");
-		} else {
-			DEBUGP("can't change expect\n");
-		}
-		break;
-	case PPTP_IN_CALL_REQUEST:
-		/* only need to nat in case PAC is behind NAT box */
-		break;
-	case PPTP_WAN_ERROR_NOTIFY:
-		pcid = &pptpReq.wanerr->peersCallID;
-		break;
-	default:
-		DEBUGP("unknown inbound packet %s\n",
-			(msg <= PPTP_MSG_MAX)? strMName[msg]:strMName[0]);
-		/* fall through */
-
-	case PPTP_START_SESSION_REQUEST:
-	case PPTP_START_SESSION_REPLY:
-	case PPTP_STOP_SESSION_REQUEST:
-	case PPTP_ECHO_REQUEST:
-	case PPTP_ECHO_REPLY:
-		/* no need to alter packet */
-		return NF_ACCEPT;
-	}
-
-	/* mangle packet */
-	IP_NF_ASSERT(pcid);
-	DEBUGP("altering peer call id from 0x%04x to 0x%04x\n",
-		ntohs(*pcid), ntohs(new_pcid));
-	tcph->check = ip_nat_cheat_check(*pcid^0xFFFF, 
-					 new_pcid, tcph->check);
-	*pcid = new_pcid;
-
-	if (new_cid) {
-		IP_NF_ASSERT(cid);
-		DEBUGP("altering call id from 0x%04x to 0x%04x\n",
-			ntohs(*cid), ntohs(new_cid));
-		tcph->check = ip_nat_cheat_check(*cid^0xFFFF,
-						new_cid, tcph->check);
-		*cid = new_cid;
-	}
-
-	/* great, at least we don't need to resize packets */
-	return NF_ACCEPT;
-}
-
-
-static unsigned int tcp_help(struct ip_conntrack *ct,
-			     struct ip_conntrack_expect *exp,
-			     struct ip_nat_info *info,
-			     enum ip_conntrack_info ctinfo,
-			     unsigned int hooknum, struct sk_buff **pskb)
-{
-	struct iphdr *iph = (*pskb)->nh.iph;
-	struct tcphdr *tcph = (void *) iph + iph->ihl*4;
-	unsigned int datalen = (*pskb)->len - iph->ihl*4 - tcph->doff*4;
-	struct pptp_pkt_hdr *pptph;
-	void *datalimit;
-
-	int dir;
-
-	DEBUGP("entering\n");
-
-	/* Only mangle things once: original direction in POST_ROUTING
-	   and reply direction on PRE_ROUTING. */
-	dir = CTINFO2DIR(ctinfo);
-	if (!((hooknum == NF_IP_POST_ROUTING && dir == IP_CT_DIR_ORIGINAL)
-	      || (hooknum == NF_IP_PRE_ROUTING && dir == IP_CT_DIR_REPLY))) {
-		DEBUGP("Not touching dir %s at hook %s\n",
-		       dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY",
-		       hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
-		       : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
-		       : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT" : "???");
-		return NF_ACCEPT;
-	}
-
-	/* if packet is too small, just skip it */
-	if (datalen < sizeof(struct pptp_pkt_hdr)+
-		      sizeof(struct PptpControlHeader)) {
-		DEBUGP("pptp packet too short\n");
-		return NF_ACCEPT;	
-	}
-
-
-	pptph = (struct pptp_pkt_hdr *) ((void *)tcph + tcph->doff*4);
-	datalimit = (void *) pptph + datalen;
-
-	LOCK_BH(&ip_pptp_lock);
-
-	if (dir == IP_CT_DIR_ORIGINAL) {
-		/* reuqests sent by client to server (PNS->PAC) */
-		pptp_outbound_pkt(tcph, pptph, datalen, ct, ctinfo, exp);
-	} else {
-		/* response from the server to the client (PAC->PNS) */
-		pptp_inbound_pkt(tcph, pptph, datalen, ct, ctinfo, exp);
-	}
-
-	UNLOCK_BH(&ip_pptp_lock);
-
-	return NF_ACCEPT;
-}
-
-/* nat helper struct for control connection */
-static struct ip_nat_helper pptp_tcp_helper = { 
-	{ NULL, NULL },
-	"pptp", IP_NAT_HELPER_F_ALWAYS, THIS_MODULE,
-	{ { 0, { tcp: { port: __constant_htons(PPTP_CONTROL_PORT) } } },
-	  { 0, { 0 }, IPPROTO_TCP } },
-	{ { 0, { tcp: { port: 0xFFFF } } },
-	  { 0, { 0 }, 0xFFFF } },
-	tcp_help, pptp_nat_expected };
-
-			  
-static int __init init(void)
-{
-	DEBUGP("init_module\n" );
-
-        if (ip_nat_helper_register(&pptp_tcp_helper))
-		return -EIO;
-
-        return 0;
-}
-
-static void __exit fini(void)
-{
-	DEBUGP("cleanup_module\n" );
-        ip_nat_helper_unregister(&pptp_tcp_helper);
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_proto_gre.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_proto_gre.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_proto_gre.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_proto_gre.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,212 +0,0 @@
-/*
- * ip_nat_proto_gre.c - Version 1.11
- *
- * NAT protocol helper module for GRE.
- *
- * GRE is a generic encapsulation protocol, which is generally not very
- * suited for NAT, as it has no protocol-specific part as port numbers.
- *
- * It has an optional key field, which may help us distinguishing two 
- * connections between the same two hosts.
- *
- * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784 
- *
- * PPTP is built on top of a modified version of GRE, and has a mandatory
- * field called "CallID", which serves us for the same purpose as the key
- * field in plain GRE.
- *
- * Documentation about PPTP can be found in RFC 2637
- *
- * (C) 2000-2002 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter NAT protocol helper module for GRE");
-
-#define DEBUGP(x, args...)
-
-/* is key in given range between min and max */
-static int
-gre_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)
-{
-	return ntohl(tuple->src.u.gre.key) >= ntohl(min->gre.key)
-		&& ntohl(tuple->src.u.gre.key) <= ntohl(max->gre.key);
-}
-
-/* generate unique tuple ... */
-static int 
-gre_unique_tuple(struct ip_conntrack_tuple *tuple,
-		 const struct ip_nat_range *range,
-		 enum ip_nat_manip_type maniptype,
-		 const struct ip_conntrack *conntrack)
-{
-	u_int32_t min, i, range_size;
-	u_int32_t key = 0, *keyptr;
-
-	if (maniptype == IP_NAT_MANIP_SRC)
-		keyptr = &tuple->src.u.gre.key;
-	else
-		keyptr = &tuple->dst.u.gre.key;
-
-	if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
-
-		switch (tuple->dst.u.gre.version) {
-		case 0:
-			DEBUGP("NATing GRE version 0 (ct=%p)\n",
-				conntrack);
-			min = 1;
-			range_size = 0xffffffff;
-			break;
-		case GRE_VERSION_PPTP:
-			DEBUGP("%p: NATing GRE PPTP\n", 
-				conntrack);
-			min = 1;
-			range_size = 0xffff;
-			break;
-		default:
-			printk(KERN_WARNING "nat_gre: unknown GRE version\n");
-			return 0;
-			break;
-		}
-
-	} else {
-		min = ntohl(range->min.gre.key);
-		range_size = ntohl(range->max.gre.key) - min + 1;
-	}
-
-	DEBUGP("min = %u, range_size = %u\n", min, range_size); 
-
-	for (i = 0; i < range_size; i++, key++) {
-		*keyptr = htonl(min + key % range_size);
-		if (!ip_nat_used_tuple(tuple, conntrack))
-			return 1;
-	}
-
-	DEBUGP("%p: no NAT mapping\n", conntrack);
-
-	return 0;
-}
-
-/* manipulate a GRE packet according to maniptype */
-static void 
-gre_manip_pkt(struct iphdr *iph, size_t len, 
-	      const struct ip_conntrack_manip *manip,
-	      enum ip_nat_manip_type maniptype)
-{
-	struct gre_hdr *greh = (struct gre_hdr *)((u_int32_t *)iph+iph->ihl);
-	struct gre_hdr_pptp *pgreh = (struct gre_hdr_pptp *) greh;
-
-	/* we only have destination manip of a packet, since 'source key' 
-	 * is not present in the packet itself */
-	if (maniptype == IP_NAT_MANIP_DST) {
-		/* key manipulation is always dest */
-		switch (greh->version) {
-		case 0:
-			if (!greh->key) {
-				DEBUGP("can't nat GRE w/o key\n");
-				break;
-			}
-			if (greh->csum) {
-				*(gre_csum(greh)) = 
-					ip_nat_cheat_check(~*(gre_key(greh)),
-							manip->u.gre.key,
-							*(gre_csum(greh)));
-			}
-			*(gre_key(greh)) = manip->u.gre.key;
-			break;
-		case GRE_VERSION_PPTP:
-			DEBUGP("call_id -> 0x%04x\n", 
-				ntohl(manip->u.gre.key));
-			pgreh->call_id = htons(ntohl(manip->u.gre.key));
-			break;
-		default:
-			DEBUGP("can't nat unknown GRE version\n");
-			break;
-		}
-	}
-}
-
-/* print out a nat tuple */
-static unsigned int 
-gre_print(char *buffer, 
-	  const struct ip_conntrack_tuple *match,
-	  const struct ip_conntrack_tuple *mask)
-{
-	unsigned int len = 0;
-
-	if (mask->dst.u.gre.version)
-		len += sprintf(buffer + len, "version=%d ",
-				ntohs(match->dst.u.gre.version));
-
-	if (mask->dst.u.gre.protocol)
-		len += sprintf(buffer + len, "protocol=0x%x ",
-				ntohs(match->dst.u.gre.protocol));
-
-	if (mask->src.u.gre.key)
-		len += sprintf(buffer + len, "srckey=0x%x ", 
-				ntohl(match->src.u.gre.key));
-
-	if (mask->dst.u.gre.key)
-		len += sprintf(buffer + len, "dstkey=0x%x ",
-				ntohl(match->src.u.gre.key));
-
-	return len;
-}
-
-/* print a range of keys */
-static unsigned int 
-gre_print_range(char *buffer, const struct ip_nat_range *range)
-{
-	if (range->min.gre.key != 0 
-	    || range->max.gre.key != 0xFFFF) {
-		if (range->min.gre.key == range->max.gre.key)
-			return sprintf(buffer, "key 0x%x ",
-					ntohl(range->min.gre.key));
-		else
-			return sprintf(buffer, "keys 0x%u-0x%u ",
-					ntohl(range->min.gre.key),
-					ntohl(range->max.gre.key));
-	} else
-		return 0;
-}
-
-/* nat helper struct */
-static struct ip_nat_protocol gre = 
-	{ { NULL, NULL }, "GRE", IPPROTO_GRE,
-	  gre_manip_pkt,
-	  gre_in_range,
-	  gre_unique_tuple,
-	  gre_print,
-	  gre_print_range 
-	};
-				  
-static int __init init(void)
-{
-        if (ip_nat_protocol_register(&gre))
-                return -EIO;
-
-        return 0;
-}
-
-static void __exit fini(void)
-{
-        ip_nat_protocol_unregister(&gre);
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_standalone.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_standalone.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_standalone.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_standalone.c	2004-05-09 04:13:03.000000000 -0400
@@ -37,7 +37,11 @@
 #include <linux/netfilter_ipv4/ip_conntrack_core.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 #define HOOKNAME(hooknum) ((hooknum) == NF_IP_POST_ROUTING ? "POST_ROUTING"  \
 			   : ((hooknum) == NF_IP_PRE_ROUTING ? "PRE_ROUTING" \
@@ -354,6 +358,5 @@
 EXPORT_SYMBOL(ip_nat_helper_unregister);
 EXPORT_SYMBOL(ip_nat_cheat_check);
 EXPORT_SYMBOL(ip_nat_mangle_tcp_packet);
-EXPORT_SYMBOL(ip_nat_mangle_udp_packet);
 EXPORT_SYMBOL(ip_nat_used_tuple);
 MODULE_LICENSE("GPL");
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_nat_tftp.c src/linux/linux.stock/net/ipv4/netfilter/ip_nat_tftp.c
--- src/linux/linux/net/ipv4/netfilter/ip_nat_tftp.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_nat_tftp.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,186 +0,0 @@
-/*
- * Licensed under GNU GPL version 2 Copyright Magnus Boden <mb@ozaba.mine.nu>
- * Version: 0.0.7
- *
- * Thu 21 Mar 2002 Harald Welte <laforge@gnumonks.org>
- * 	- Port to newnat API
- *
- * This module currently supports DNAT:
- * iptables -t nat -A PREROUTING -d x.x.x.x -j DNAT --to-dest x.x.x.y
- *
- * and SNAT:
- * iptables -t nat -A POSTROUTING { -j MASQUERADE , -j SNAT --to-source x.x.x.x }
- *
- * It has not been tested with
- * -j SNAT --to-source x.x.x.x-x.x.x.y since I only have one external ip
- * If you do test this please let me know if it works or not.
- *
- */
-
-#include <linux/module.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tftp.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-
-MODULE_AUTHOR("Magnus Boden <mb@ozaba.mine.nu>");
-MODULE_DESCRIPTION("Netfilter NAT helper for tftp");
-MODULE_LICENSE("GPL");
-
-#define MAX_PORTS 8
-
-static int ports[MAX_PORTS];
-static int ports_c = 0;
-#ifdef MODULE_PARM
-MODULE_PARM(ports,"1-" __MODULE_STRING(MAX_PORTS) "i");
-MODULE_PARM_DESC(ports, "port numbers of tftp servers");
-#endif
-
-#define DEBUGP(format, args...)
-static unsigned int 
-tftp_nat_help(struct ip_conntrack *ct,
-	      struct ip_conntrack_expect *exp,
-	      struct ip_nat_info *info,
-	      enum ip_conntrack_info ctinfo,
-	      unsigned int hooknum,
-	      struct sk_buff **pskb)
-{
-	int dir = CTINFO2DIR(ctinfo);
-	struct iphdr *iph = (*pskb)->nh.iph;
-	struct udphdr *udph = (void *)iph + iph->ihl * 4;
-	struct tftphdr *tftph = (void *)udph + 8;
-	struct ip_conntrack_tuple repl;
-
-	if (!((hooknum == NF_IP_POST_ROUTING && dir == IP_CT_DIR_ORIGINAL)
-	      || (hooknum == NF_IP_PRE_ROUTING && dir == IP_CT_DIR_REPLY))) 
-		return NF_ACCEPT;
-
-	if (!exp) {
-		DEBUGP("no conntrack expectation to modify\n");
-		return NF_ACCEPT;
-	}
-
-	switch (ntohs(tftph->opcode)) {
-	/* RRQ and WRQ works the same way */
-	case TFTP_OPCODE_READ:
-	case TFTP_OPCODE_WRITE:
-		repl = ct->tuplehash[IP_CT_DIR_REPLY].tuple;
-		DEBUGP("");
-		DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-		DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-		DEBUGP("expecting: ");
-		DUMP_TUPLE_RAW(&repl);
-		DUMP_TUPLE_RAW(&exp->mask);
-		ip_conntrack_change_expect(exp, &repl);
-		break;
-	default:
-		DEBUGP("Unknown opcode\n");
-	}               
-
-	return NF_ACCEPT;
-}
-
-static unsigned int 
-tftp_nat_expected(struct sk_buff **pskb,
-		  unsigned int hooknum,
-		  struct ip_conntrack *ct, 
-		  struct ip_nat_info *info) 
-{
-	const struct ip_conntrack *master = ct->master->expectant;
-	const struct ip_conntrack_tuple *orig = 
-			&master->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
-	struct ip_nat_multi_range mr;
-
-	IP_NF_ASSERT(info);
-	IP_NF_ASSERT(master);
-	IP_NF_ASSERT(!(info->initialized & (1 << HOOK2MANIP(hooknum))));
-
-	mr.rangesize = 1;
-	mr.range[0].flags = IP_NAT_RANGE_MAP_IPS;
-
-	if (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC) {
-		mr.range[0].min_ip = mr.range[0].max_ip = orig->dst.ip; 
-		DEBUGP("orig: %u.%u.%u.%u:%u <-> %u.%u.%u.%u:%u "
-			"newsrc: %u.%u.%u.%u\n",
-                        NIPQUAD((*pskb)->nh.iph->saddr), ntohs(udph->source),
-			NIPQUAD((*pskb)->nh.iph->daddr), ntohs(udph->dest),
-			NIPQUAD(orig->dst.ip));
-	} else {
-		mr.range[0].min_ip = mr.range[0].max_ip = orig->src.ip;
-		mr.range[0].min.udp.port = mr.range[0].max.udp.port = 
-							orig->src.u.udp.port;
-		mr.range[0].flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
-
-		DEBUGP("orig: %u.%u.%u.%u:%u <-> %u.%u.%u.%u:%u "
-			"newdst: %u.%u.%u.%u:%u\n",
-                        NIPQUAD((*pskb)->nh.iph->saddr), ntohs(udph->source),
-                        NIPQUAD((*pskb)->nh.iph->daddr), ntohs(udph->dest),
-                        NIPQUAD(orig->src.ip), ntohs(orig->src.u.udp.port));
-	}
-
-	return ip_nat_setup_info(ct,&mr,hooknum);
-}
-
-static struct ip_nat_helper tftp[MAX_PORTS];
-static char tftp_names[MAX_PORTS][10];
-
-static void fini(void)
-{
-	int i;
-
-	for (i = 0 ; i < ports_c; i++) {
-		DEBUGP("unregistering helper for port %d\n", ports[i]);
-		ip_nat_helper_unregister(&tftp[i]);
-	}
-}
-
-static int __init init(void)
-{
-	int i, ret;
-	char *tmpname;
-
-	if (!ports[0])
-		ports[0] = TFTP_PORT;
-
-	for (i = 0 ; (i < MAX_PORTS) && ports[i] ; i++) {
-		memset(&tftp[i], 0, sizeof(struct ip_nat_helper));
-
-		tftp[i].tuple.dst.protonum = IPPROTO_UDP;
-		tftp[i].tuple.src.u.udp.port = htons(ports[i]);
-		tftp[i].mask.dst.protonum = 0xFFFF;
-		tftp[i].mask.src.u.udp.port = 0xFFFF;
-		tftp[i].help = tftp_nat_help;
-		tftp[i].flags = 0;
-		tftp[i].me = THIS_MODULE;
-		tftp[i].expect = tftp_nat_expected;
-
-		tmpname = &tftp_names[i][0];
-		if (ports[i] == TFTP_PORT)
-			sprintf(tmpname, "tftp");
-		else
-			sprintf(tmpname, "tftp-%d", i);
-		tftp[i].name = tmpname;
-		
-		DEBUGP("ip_nat_tftp: registering for port %d: name %s\n",
-			ports[i], tftp[i].name);
-		ret = ip_nat_helper_register(&tftp[i]);
-
-		if (ret) {
-			printk("ip_nat_tftp: unable to register for port %d\n",
-				ports[i]);
-			fini();
-			return ret;
-		}
-		ports_c++;
-	}
-	return ret;
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_pool.c src/linux/linux.stock/net/ipv4/netfilter/ip_pool.c
--- src/linux/linux/net/ipv4/netfilter/ip_pool.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_pool.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,328 +0,0 @@
-/* Kernel module for IP pool management */
-
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/skbuff.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_pool.h>
-#include <linux/errno.h>
-#include <asm/uaccess.h>
-#include <asm/bitops.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-
-#define DP(format, args...)
-
-MODULE_LICENSE("GPL");
-
-#define NR_POOL 16
-static int nr_pool = NR_POOL;/* overwrite this when loading module */
-
-struct ip_pool {
-	u_int32_t first_ip;	/* host byte order, included in range */
-	u_int32_t last_ip;	/* host byte order, included in range */
-	void *members;		/* the bitmap proper */
-	int nr_use;		/* total nr. of tests through this */
-	int nr_match;		/* total nr. of matches through this */
-	rwlock_t lock;
-};
-
-static struct ip_pool *POOL;
-
-static inline struct ip_pool *lookup(ip_pool_t index)
-{
-	if (index < 0 || index >= nr_pool) {
-		DP("ip_pool:lookup: bad index %d\n", index);
-		return 0;
-	}
-	return POOL+index;
-}
-
-int ip_pool_match(ip_pool_t index, u_int32_t addr)
-{
-        struct ip_pool *pool = lookup(index);
-	int res = 0;
-
-	if (!pool || !pool->members)
-		return 0;
-	read_lock_bh(&pool->lock);
-	if (pool->members) {
-		if (addr >= pool->first_ip && addr <= pool->last_ip) {
-			addr -= pool->first_ip;
-			if (test_bit(addr, pool->members)) {
-				res = 1;
-#ifdef CONFIG_IP_POOL_STATISTICS
-				pool->nr_match++;
-#endif
-			}
-		}
-#ifdef CONFIG_IP_POOL_STATISTICS
-		pool->nr_use++;
-#endif
-	}
-	read_unlock_bh(&pool->lock);
-	return res;
-}
-
-static int pool_change(ip_pool_t index, u_int32_t addr, int isdel)
-{
-	struct ip_pool *pool;
-	int res = -1;
-
-	pool = lookup(index);
-	if (    !pool || !pool->members
-	     || addr < pool->first_ip || addr > pool->last_ip)
-		return -1;
-	read_lock_bh(&pool->lock);
-	if (pool->members && addr >= pool->first_ip && addr <= pool->last_ip) {
-		addr -= pool->first_ip;
-		res = isdel
-			? (0 != test_and_clear_bit(addr, pool->members))
-			: (0 != test_and_set_bit(addr, pool->members));
-	}
-	read_unlock_bh(&pool->lock);
-	return res;
-}
-
-int ip_pool_mod(ip_pool_t index, u_int32_t addr, int isdel)
-{
-	int res = pool_change(index,addr,isdel);
-
-	if (!isdel) res = !res;
-	return res;
-}
-
-static inline int bitmap_bytes(u_int32_t a, u_int32_t b)
-{
-	return 4*((((b-a+8)/8)+3)/4);
-}
-
-static inline int poolbytes(ip_pool_t index)
-{
-	struct ip_pool *pool = lookup(index);
-
-	return pool ? bitmap_bytes(pool->first_ip, pool->last_ip) : 0;
-}
-
-static int setpool(
-	struct sock *sk,
-	int optval,
-	void *user,
-	unsigned int len
-) {
-	struct ip_pool_request req;
-
-	DP("ip_pool:setpool: optval=%d, user=%p, len=%d\n", optval, user, len);
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-	if (optval != SO_IP_POOL)
-		return -EBADF;
-	if (len != sizeof(req))
-		return -EINVAL;
-	if (copy_from_user(&req, user, sizeof(req)) != 0)
-		return -EFAULT;
-	printk("obsolete op - upgrade your ippool(8) utility.\n");
-	return -EINVAL;
-}
-
-static int getpool(
-	struct sock *sk,
-	int optval,
-	void *user,
-	int *len
-) {
-	struct ip_pool_request req;
-	struct ip_pool *pool;
-	ip_pool_t i;
-	int newbytes;
-	void *newmembers;
-	int res;
-
-	DP("ip_pool:getpool: optval=%d, user=%p\n", optval, user);
-	if (!capable(CAP_NET_ADMIN))
-		return -EINVAL;
-	if (optval != SO_IP_POOL)
-		return -EINVAL;
-	if (*len != sizeof(req)) {
-		return -EFAULT;
-	}
-	if (copy_from_user(&req, user, sizeof(req)) != 0)
-		return -EFAULT;
-	DP("ip_pool:getpool op=%d, index=%d\n", req.op, req.index);
-	if (req.op < IP_POOL_BAD001) {
-		printk("obsolete op - upgrade your ippool(8) utility.\n");
-		return -EFAULT;
-	}
-	switch(req.op) {
-	case IP_POOL_HIGH_NR:
-		DP("ip_pool HIGH_NR\n");
-		req.index = IP_POOL_NONE;
-		for (i=0; i<nr_pool; i++)
-			if (POOL[i].members)
-				req.index = i;
-		return copy_to_user(user, &req, sizeof(req));
-	case IP_POOL_LOOKUP:
-		DP("ip_pool LOOKUP\n");
-		pool = lookup(req.index);
-		if (!pool)
-			return -EINVAL;
-		if (!pool->members)
-			return -EBADF;
-		req.addr = htonl(pool->first_ip);
-		req.addr2 = htonl(pool->last_ip);
-		return copy_to_user(user, &req, sizeof(req));
-	case IP_POOL_USAGE:
-		DP("ip_pool USE\n");
-		pool = lookup(req.index);
-		if (!pool)
-			return -EINVAL;
-		if (!pool->members)
-			return -EBADF;
-		req.addr = pool->nr_use;
-		req.addr2 = pool->nr_match;
-		return copy_to_user(user, &req, sizeof(req));
-	case IP_POOL_TEST_ADDR:
-		DP("ip_pool TEST 0x%08x\n", req.addr);
-		pool = lookup(req.index);
-		if (!pool)
-			return -EINVAL;
-		res = 0;
-		read_lock_bh(&pool->lock);
-		if (!pool->members) {
-			DP("ip_pool TEST_ADDR no members in pool\n");
-			res = -EBADF;
-			goto unlock_and_return_res;
-		}
-		req.addr = ntohl(req.addr);
-		if (req.addr < pool->first_ip) {
-			DP("ip_pool TEST_ADDR address < pool bounds\n");
-			res = -ERANGE;
-			goto unlock_and_return_res;
-		}
-		if (req.addr > pool->last_ip) {
-			DP("ip_pool TEST_ADDR address > pool bounds\n");
-			res = -ERANGE;
-			goto unlock_and_return_res;
-		}
-		req.addr = (0 != test_bit((req.addr - pool->first_ip),
-					pool->members));
-		read_unlock_bh(&pool->lock);
-		return copy_to_user(user, &req, sizeof(req));
-	case IP_POOL_FLUSH:
-		DP("ip_pool FLUSH not yet implemented.\n");
-		return -EBUSY;
-	case IP_POOL_DESTROY:
-		DP("ip_pool DESTROY not yet implemented.\n");
-		return -EBUSY;
-	case IP_POOL_INIT:
-		DP("ip_pool INIT 0x%08x-0x%08x\n", req.addr, req.addr2);
-		pool = lookup(req.index);
-		if (!pool)
-			return -EINVAL;
-		req.addr = ntohl(req.addr);
-		req.addr2 = ntohl(req.addr2);
-		if (req.addr > req.addr2) {
-			DP("ip_pool INIT bad ip range\n");
-			return -EINVAL;
-		}
-		newbytes = bitmap_bytes(req.addr, req.addr2);
-		newmembers = kmalloc(newbytes, GFP_KERNEL);
-		if (!newmembers) {
-			DP("ip_pool INIT out of mem for %d bytes\n", newbytes);
-			return -ENOMEM;
-		}
-		memset(newmembers, 0, newbytes);
-		write_lock_bh(&pool->lock);
-		if (pool->members) {
-			DP("ip_pool INIT pool %d exists\n", req.index);
-			kfree(newmembers);
-			res = -EBUSY;
-			goto unlock_and_return_res;
-		}
-		pool->first_ip = req.addr;
-		pool->last_ip = req.addr2;
-		pool->nr_use = 0;
-		pool->nr_match = 0;
-		pool->members = newmembers;
-		write_unlock_bh(&pool->lock);
-		return 0;
-	case IP_POOL_ADD_ADDR:
-		DP("ip_pool ADD_ADDR 0x%08x\n", req.addr);
-		req.addr = pool_change(req.index, ntohl(req.addr), 0);
-		return copy_to_user(user, &req, sizeof(req));
-	case IP_POOL_DEL_ADDR:
-		DP("ip_pool DEL_ADDR 0x%08x\n", req.addr);
-		req.addr = pool_change(req.index, ntohl(req.addr), 1);
-		return copy_to_user(user, &req, sizeof(req));
-	default:
-		DP("ip_pool:getpool bad op %d\n", req.op);
-		return -EINVAL;
-	}
-	return -EINVAL;
-
-unlock_and_return_res:
-	if (pool)
-		read_unlock_bh(&pool->lock);
-	return res;
-}
-
-static struct nf_sockopt_ops so_pool
-= { { NULL, NULL }, PF_INET,
-    SO_IP_POOL, SO_IP_POOL+1, &setpool,
-    SO_IP_POOL, SO_IP_POOL+1, &getpool,
-    0, NULL };
-
-MODULE_PARM(nr_pool, "i");
-
-static int __init init(void)
-{
-	ip_pool_t i;
-	int res;
-
-	if (nr_pool < 1) {
-		printk("ip_pool module init: bad nr_pool %d\n", nr_pool);
-		return -EINVAL;
-	}
-	POOL = kmalloc(nr_pool * sizeof(*POOL), GFP_KERNEL);
-	if (!POOL) {
-		printk("ip_pool module init: out of memory for nr_pool %d\n",
-			nr_pool);
-		return -ENOMEM;
-	}
-	for (i=0; i<nr_pool; i++) {
-		POOL[i].first_ip = 0;
-		POOL[i].last_ip = 0;
-		POOL[i].members = 0;
-		POOL[i].nr_use = 0;
-		POOL[i].nr_match = 0;
-		POOL[i].lock = RW_LOCK_UNLOCKED;
-	}
-	res = nf_register_sockopt(&so_pool);
-	DP("ip_pool:init %d pools, result %d\n", nr_pool, res);
-	if (res != 0) {
-		kfree(POOL);
-		POOL = 0;
-	}
-	return res;
-}
-
-static void __exit fini(void)
-{
-	ip_pool_t i;
-
-	DP("ip_pool:fini BYEBYE\n");
-	nf_unregister_sockopt(&so_pool);
-	for (i=0; i<nr_pool; i++) {
-		if (POOL[i].members) {
-			kfree(POOL[i].members);
-			POOL[i].members = 0;
-		}
-	}
-	kfree(POOL);
-	POOL = 0;
-	DP("ip_pool:fini these are the famous last words\n");
-	return;
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv4/netfilter/ip_tables.c src/linux/linux.stock/net/ipv4/netfilter/ip_tables.c
--- src/linux/linux/net/ipv4/netfilter/ip_tables.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ip_tables.c	2004-05-09 04:13:03.000000000 -0400
@@ -62,6 +62,11 @@
 #include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
+#if 0
+/* All the better to debug you with... */
+#define static
+#define inline
+#endif
 
 /* Locking is simple: we assume at worst case there will be one packet
    in user context and one from bottom halves (or soft irq if Alexey's
@@ -83,6 +88,7 @@
 {
 	/* Size per table */
 	unsigned int size;
+	/* Number of entries: FIXME. --RR */
 	unsigned int number;
 	/* Initial number of entries. Needed for module usage count */
 	unsigned int initial_entries;
@@ -106,6 +112,11 @@
 #define TABLE_OFFSET(t,p) 0
 #endif
 
+#if 0
+#define down(x) do { printk("DOWN:%u:" #x "\n", __LINE__); down(x); } while(0)
+#define down_interruptible(x) ({ int __r; printk("DOWNi:%u:" #x "\n", __LINE__); __r = down_interruptible(x); if (__r != 0) printk("ABORT-DOWNi:%u\n", __LINE__); __r; })
+#define up(x) do { printk("UP:%u:" #x "\n", __LINE__); up(x); } while(0)
+#endif
 
 /* Returns whether matches rule or not. */
 static inline int
@@ -408,6 +419,12 @@
 {
 	void *ret;
 
+#if 0
+	duprintf("find_inlist: searching for `%s' in %s.\n",
+		 name, head == &ipt_target ? "ipt_target"
+		 : head == &ipt_match ? "ipt_match"
+		 : head == &ipt_tables ? "ipt_tables" : "UNKNOWN");
+#endif
 
 	*error = down_interruptible(mutex);
 	if (*error != 0)
@@ -745,6 +762,8 @@
 			newinfo->underflow[h] = underflows[h];
 	}
 
+	/* FIXME: underflows must be unconditional, standard verdicts
+           < 0 (not IPT_RETURN). --RR */
 
 	/* Clear counters and comefrom */
 	e->counters = ((struct ipt_counters) { 0, 0 });
@@ -957,6 +976,7 @@
 		goto free_counters;
 	}
 
+	/* FIXME: use iterator macros --RR */
 	/* ... then go back and fix counters and names */
 	for (off = 0, num = 0; off < total_size; off += e->next_offset, num++){
 		unsigned int i;
@@ -1134,6 +1154,14 @@
 		     const struct ipt_counters addme[],
 		     unsigned int *i)
 {
+#if 0
+	duprintf("add_counter: Entry %u %lu/%lu + %lu/%lu\n",
+		 *i,
+		 (long unsigned int)e->counters.pcnt,
+		 (long unsigned int)e->counters.bcnt,
+		 (long unsigned int)addme[*i].pcnt,
+		 (long unsigned int)addme[*i].bcnt);
+#endif
 
 	ADD_COUNTER(e->counters, addme[*i].bcnt, addme[*i].pcnt);
 
@@ -1495,6 +1523,7 @@
 		return 0;
 	}
 
+	/* FIXME: Try tcp doff >> packet len against various stacks --RR */
 
 #define FWINVTCP(bool,invflg) ((bool) ^ !!(tcpinfo->invflags & invflg))
 
@@ -1670,15 +1699,14 @@
 = { { NULL, NULL }, "icmp", &icmp_match, &icmp_checkentry, NULL };
 
 #ifdef CONFIG_PROC_FS
-static inline int print_name(const char *i,
+static inline int print_name(const struct ipt_table *t,
 			     off_t start_offset, char *buffer, int length,
 			     off_t *pos, unsigned int *count)
 {
 	if ((*count)++ >= start_offset) {
 		unsigned int namelen;
 
-		namelen = sprintf(buffer + *pos, "%s\n",
-				  i + sizeof(struct list_head));
+		namelen = sprintf(buffer + *pos, "%s\n", t->name);
 		if (*pos + namelen > length) {
 			/* Stop iterating */
 			return 1;
@@ -1696,7 +1724,7 @@
 	if (down_interruptible(&ipt_mutex) != 0)
 		return 0;
 
-	LIST_FIND(&ipt_tables, print_name, void *,
+	LIST_FIND(&ipt_tables, print_name, struct ipt_table *,
 		  offset, buffer, length, &pos, &count);
 
 	up(&ipt_mutex);
@@ -1705,46 +1733,6 @@
 	*start=(char *)((unsigned long)count-offset);
 	return pos;
 }
-
-static int ipt_get_targets(char *buffer, char **start, off_t offset, int length)
-{
-	off_t pos = 0;
-	unsigned int count = 0;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return 0;
-
-	LIST_FIND(&ipt_target, print_name, void *,
-		  offset, buffer, length, &pos, &count);
-	
-	up(&ipt_mutex);
-
-	*start = (char *)((unsigned long)count - offset);
-	return pos;
-}
-
-static int ipt_get_matches(char *buffer, char **start, off_t offset, int length)
-{
-	off_t pos = 0;
-	unsigned int count = 0;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return 0;
-	
-	LIST_FIND(&ipt_match, print_name, void *,
-		  offset, buffer, length, &pos, &count);
-
-	up(&ipt_mutex);
-
-	*start = (char *)((unsigned long)count - offset);
-	return pos;
-}
-
-static struct { char *name; get_info_t *get_info; } ipt_proc_entry[] =
-{ { "ip_tables_names", ipt_get_tables },
-  { "ip_tables_targets", ipt_get_targets },
-  { "ip_tables_matches", ipt_get_matches },
-  { NULL, NULL} };
 #endif /*CONFIG_PROC_FS*/
 
 static int __init init(void)
@@ -1770,20 +1758,14 @@
 #ifdef CONFIG_PROC_FS
 	{
 	struct proc_dir_entry *proc;
-	int i;
 
-	for (i = 0; ipt_proc_entry[i].name; i++) {
-		proc = proc_net_create(ipt_proc_entry[i].name, 0,
-				       ipt_proc_entry[i].get_info);
+	proc = proc_net_create("ip_tables_names", 0, ipt_get_tables);
 		if (!proc) {
-			while (--i >= 0)
-				proc_net_remove(ipt_proc_entry[i].name);
 			nf_unregister_sockopt(&ipt_sockopts);
 			return -ENOMEM;
 		}
 		proc->owner = THIS_MODULE;
 	}
-	}
 #endif
 
 	printk("ip_tables: (C) 2000-2002 Netfilter core team\n");
@@ -1794,11 +1776,7 @@
 {
 	nf_unregister_sockopt(&ipt_sockopts);
 #ifdef CONFIG_PROC_FS
-	{
-	int i;
-	for (i = 0; ipt_proc_entry[i].name; i++)
-		proc_net_remove(ipt_proc_entry[i].name);
-	}
+	proc_net_remove("ip_tables_names");
 #endif
 }
 
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipchains_core.c src/linux/linux.stock/net/ipv4/netfilter/ipchains_core.c
--- src/linux/linux/net/ipv4/netfilter/ipchains_core.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipchains_core.c	2004-05-09 04:13:03.000000000 -0400
@@ -977,10 +977,17 @@
 		    || ftmp->ipfw.fw_dst.s_addr!=frwl->ipfw.fw_dst.s_addr
 		    || ftmp->ipfw.fw_smsk.s_addr!=frwl->ipfw.fw_smsk.s_addr
 		    || ftmp->ipfw.fw_dmsk.s_addr!=frwl->ipfw.fw_dmsk.s_addr
+#if 0
+		    || ftmp->ipfw.fw_flg!=frwl->ipfw.fw_flg
+#else
 		    || ((ftmp->ipfw.fw_flg & ~IP_FW_F_MARKABS)
 			!= (frwl->ipfw.fw_flg & ~IP_FW_F_MARKABS))
+#endif
 		    || ftmp->ipfw.fw_invflg!=frwl->ipfw.fw_invflg
 		    || ftmp->ipfw.fw_proto!=frwl->ipfw.fw_proto
+#if 0
+		    || ftmp->ipfw.fw_mark!=frwl->ipfw.fw_mark
+#endif
 		    || ftmp->ipfw.fw_redirpt!=frwl->ipfw.fw_redirpt
 		    || ftmp->ipfw.fw_spts[0]!=frwl->ipfw.fw_spts[0]
 		    || ftmp->ipfw.fw_spts[1]!=frwl->ipfw.fw_spts[1]
@@ -1566,6 +1573,7 @@
 	)
 {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,29)
+	/* FIXME: No more `atomic' read and reset.  Wonderful 8-( --RR */
 	int reset = 0;
 #endif
 	struct ip_chain *i;
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipfwadm_core.c src/linux/linux.stock/net/ipv4/netfilter/ipfwadm_core.c
--- src/linux/linux/net/ipv4/netfilter/ipfwadm_core.c	2003-10-14 04:09:33.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipfwadm_core.c	2004-05-09 04:13:03.000000000 -0400
@@ -20,7 +20,7 @@
  *	license in recognition of the original copyright.
  *				-- Alan Cox.
  *
- *	$Id: ipfwadm_core.c,v 1.1.1.4 2003/10/14 08:09:33 sparq Exp $
+ *	$Id: ipfwadm_core.c,v 1.9.2.2 2002/01/24 15:50:42 davem Exp $
  *
  *	Ported from BSD to Linux,
  *		Alan Cox 22/Nov/1994.
@@ -1205,6 +1205,7 @@
 	)
 {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,29)
+	/* FIXME: No more `atomic' read and reset.  Wonderful 8-( --RR */
 	int reset = 0;
 #endif
 	return ip_chain_procinfo(IP_FW_ACCT, buffer,start, offset,length,
@@ -1223,6 +1224,7 @@
 	)
 {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,29)
+	/* FIXME: No more `atomic' read and reset.  Wonderful 8-( --RR */
 	int reset = 0;
 #endif
 	return ip_chain_procinfo(IP_FW_IN, buffer,start,offset,length,
@@ -1237,6 +1239,7 @@
 	)
 {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,29)
+	/* FIXME: No more `atomic' read and reset.  Wonderful 8-( --RR */
 	int reset = 0;
 #endif
 	return ip_chain_procinfo(IP_FW_OUT, buffer,start,offset,length,
@@ -1251,6 +1254,7 @@
 	)
 {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,29)
+	/* FIXME: No more `atomic' read and reset.  Wonderful 8-( --RR */
 	int reset = 0;
 #endif
 	return ip_chain_procinfo(IP_FW_FWD, buffer,start,offset,length,
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipt_ECN.c src/linux/linux.stock/net/ipv4/netfilter/ipt_ECN.c
--- src/linux/linux/net/ipv4/netfilter/ipt_ECN.c	2003-10-14 04:02:57.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipt_ECN.c	2004-05-09 04:13:03.000000000 -0400
@@ -87,8 +87,8 @@
 	}
 	
 	if (diffs[0] != *tcpflags) {
-		diffs[0] = diffs[0] ^ 0xFFFF;
-		diffs[1] = *tcpflags;
+		diffs[0] = htons(diffs[0]) ^ 0xFFFF;
+		diffs[1] = htons(*tcpflags);
 		tcph->check = csum_fold(csum_partial((char *)diffs,
 		                                    sizeof(diffs),
 		                                    tcph->check^0xFFFF));
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipt_LOG.c src/linux/linux.stock/net/ipv4/netfilter/ipt_LOG.c
--- src/linux/linux/net/ipv4/netfilter/ipt_LOG.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipt_LOG.c	2004-05-09 04:13:03.000000000 -0400
@@ -14,11 +14,15 @@
 #include <net/route.h>
 #include <linux/netfilter_ipv4/ipt_LOG.h>
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 struct esphdr {
 	__u32   spi;
-}; 
+}; /* FIXME evil kludge */
         
 /* Use lock to serialize, so printks don't overlap */
 static spinlock_t log_lock = SPIN_LOCK_UNLOCKED;
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipt_REJECT.c src/linux/linux.stock/net/ipv4/netfilter/ipt_REJECT.c
--- src/linux/linux/net/ipv4/netfilter/ipt_REJECT.c	2003-07-04 04:12:31.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipt_REJECT.c	2004-05-09 04:13:03.000000000 -0400
@@ -6,8 +6,6 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/ip.h>
-#include <linux/udp.h>
-#include <linux/icmp.h>
 #include <net/icmp.h>
 #include <net/ip.h>
 #include <net/tcp.h>
@@ -16,7 +14,11 @@
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_REJECT.h>
 
+#if 0
+#define DEBUGP printk
+#else
 #define DEBUGP(format, args...)
+#endif
 
 /* If the original packet is part of a connection, but the connection
    is not confirmed, our manufactured reply will not be associated
@@ -155,7 +157,6 @@
 static void send_unreach(struct sk_buff *skb_in, int code)
 {
 	struct iphdr *iph;
-	struct udphdr *udph;
 	struct icmphdr *icmph;
 	struct sk_buff *nskb;
 	u32 saddr;
@@ -167,6 +168,7 @@
 	if (!rt)
 		return;
 
+	/* FIXME: Use sysctl number. --RR */
 	if (!xrlim_allow(&rt->u.dst, 1*HZ))
 		return;
 
@@ -184,19 +186,6 @@
 	if (iph->frag_off&htons(IP_OFFSET))
 		return;
 
-	/* if UDP checksum is set, verify it's correct */
-	if (iph->protocol == IPPROTO_UDP
-	    && skb_in->tail-(u8*)iph >= sizeof(struct udphdr)) {
-		int datalen = skb_in->len - (iph->ihl<<2);
-		udph = (struct udphdr *)((char *)iph + (iph->ihl<<2));
-		if (udph->check
-		    && csum_tcpudp_magic(iph->saddr, iph->daddr,
-		                         datalen, IPPROTO_UDP,
-		                         csum_partial((char *)udph, datalen,
-		                                      0)) != 0)
-			return;
-	}
-		    
 	/* If we send an ICMP error to an ICMP error a mess would result.. */
 	if (iph->protocol == IPPROTO_ICMP
 	    && skb_in->tail-(u8*)iph >= sizeof(struct icmphdr)) {
@@ -271,6 +260,7 @@
 	/* Copy as much of original packet as will fit */
 	data = skb_put(nskb,
 		       length - sizeof(struct iphdr) - sizeof(struct icmphdr));
+	/* FIXME: won't work with nonlinear skbs --RR */
 	memcpy(data, skb_in->nh.iph,
 	       length - sizeof(struct iphdr) - sizeof(struct icmphdr));
 	icmph->checksum = ip_compute_csum((unsigned char *)icmph,
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipt_ULOG.c src/linux/linux.stock/net/ipv4/netfilter/ipt_ULOG.c
--- src/linux/linux/net/ipv4/netfilter/ipt_ULOG.c	2003-07-04 04:12:32.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipt_ULOG.c	2004-05-09 04:13:03.000000000 -0400
@@ -12,7 +12,6 @@
  * 	      module loadtime -HW
  * 2002/07/07 remove broken nflog_rcv() function -HW
  * 2002/08/29 fix shifted/unshifted nlgroup bug -HW
- * 2002/10/30 fix uninitialized mac_len field - <Anders K. Pedersen>
  *
  * Released under the terms of the GPL
  *
@@ -32,7 +31,7 @@
  *   Specify, after how many clock ticks (intel: 100 per second) the queue
  * should be flushed even if it is not full yet.
  *
- * ipt_ULOG.c,v 1.22 2002/10/30 09:07:31 laforge Exp
+ * ipt_ULOG.c,v 1.21 2002/08/29 10:54:34 laforge Exp
  */
 
 #include <linux/module.h>
@@ -60,7 +59,12 @@
 #define ULOG_NL_EVENT		111		/* Harald's favorite number */
 #define ULOG_MAXNLGROUPS	32		/* numer of nlgroups */
 
+#if 0
+#define DEBUGP(format, args...)	printk(__FILE__ ":" __FUNCTION__ ":" \
+				       format, ## args)
+#else
 #define DEBUGP(format, args...)
+#endif
 
 #define PRINTR(format, args...) do { if (net_ratelimit()) printk(format, ## args); } while (0)
 
@@ -220,8 +224,7 @@
 	    && in->hard_header_len <= ULOG_MAC_LEN) {
 		memcpy(pm->mac, (*pskb)->mac.raw, in->hard_header_len);
 		pm->mac_len = in->hard_header_len;
-	} else
-		pm->mac_len = 0;
+	}
 
 	if (in)
 		strncpy(pm->indev_name, in->name, sizeof(pm->indev_name));
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipt_multiport.c src/linux/linux.stock/net/ipv4/netfilter/ipt_multiport.c
--- src/linux/linux/net/ipv4/netfilter/ipt_multiport.c	2003-07-04 04:12:32.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipt_multiport.c	2004-05-09 04:13:03.000000000 -0400
@@ -8,7 +8,11 @@
 #include <linux/netfilter_ipv4/ipt_multiport.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 
+#if 0
+#define duprintf(format, args...) printk(format , ## args)
+#else
 #define duprintf(format, args...)
+#endif
 
 /* Returns 1 if the port is matched by the test, 0 otherwise. */
 static inline int
@@ -74,7 +78,7 @@
 
 	/* Must specify proto == TCP/UDP, no unknown flags or bad count */
 	return (ip->proto == IPPROTO_TCP || ip->proto == IPPROTO_UDP)
-		&& !(ip->invflags & IPT_INV_PROTO)
+		&& !(ip->flags & IPT_INV_PROTO)
 		&& matchsize == IPT_ALIGN(sizeof(struct ipt_multiport))
 		&& (multiinfo->flags == IPT_MULTIPORT_SOURCE
 		    || multiinfo->flags == IPT_MULTIPORT_DESTINATION
diff -Nurb src/linux/linux/net/ipv4/netfilter/ipt_pool.c src/linux/linux.stock/net/ipv4/netfilter/ipt_pool.c
--- src/linux/linux/net/ipv4/netfilter/ipt_pool.c	2003-07-04 04:12:32.000000000 -0400
+++ src/linux/linux.stock/net/ipv4/netfilter/ipt_pool.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,71 +0,0 @@
-/* Kernel module to match an IP address pool. */
-
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/skbuff.h>
-
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_pool.h>
-#include <linux/netfilter_ipv4/ipt_pool.h>
-
-static inline int match_pool(
-	ip_pool_t index,
-	__u32 addr,
-	int inv
-) {
-	if (ip_pool_match(index, ntohl(addr)))
-		inv = !inv;
-	return inv;
-}
-
-static int match(
-	const struct sk_buff *skb,
-	const struct net_device *in,
-	const struct net_device *out,
-	const void *matchinfo,
-	int offset,
-	const void *hdr,
-	u_int16_t datalen,
-	int *hotdrop
-) {
-	const struct ipt_pool_info *info = matchinfo;
-	const struct iphdr *iph = skb->nh.iph;
-
-	if (info->src != IP_POOL_NONE && !match_pool(info->src, iph->saddr,
-						info->flags&IPT_POOL_INV_SRC))
-		return 0;
-
-	if (info->dst != IP_POOL_NONE && !match_pool(info->dst, iph->daddr,
-						info->flags&IPT_POOL_INV_DST))
-		return 0;
-
-	return 1;
-}
-
-static int checkentry(
-	const char *tablename,
-	const struct ipt_ip *ip,
-	void *matchinfo,
-	unsigned int matchsize,
-	unsigned int hook_mask
-) {
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_pool_info)))
-		return 0;
-	return 1;
-}
-
-static struct ipt_match pool_match
-= { { NULL, NULL }, "pool", &match, &checkentry, NULL, THIS_MODULE };
-
-static int __init init(void)
-{
-	return ipt_register_match(&pool_match);
-}
-
-static void __exit fini(void)
-{
-	ipt_unregister_match(&pool_match);
-}
-
-module_init(init);
-module_exit(fini);
diff -Nurb src/linux/linux/net/ipv6/mcast.c src/linux/linux.stock/net/ipv6/mcast.c
--- src/linux/linux/net/ipv6/mcast.c	2003-10-14 04:09:34.000000000 -0400
+++ src/linux/linux.stock/net/ipv6/mcast.c	2004-05-09 04:13:22.000000000 -0400
@@ -5,7 +5,7 @@
  *	Authors:
  *	Pedro Roque		<roque@di.fc.ul.pt>	
  *
- *	$Id: mcast.c,v 1.1.1.4 2003/10/14 08:09:34 sparq Exp $
+ *	$Id: mcast.c,v 1.38 2001/08/15 07:36:31 davem Exp $
  *
  *	Based on linux/ipv4/igmp.c and linux/ipv4/ip_sockglue.c 
  *