new file mode 100644
--- /dev/null
+++ b/packages/net/tcpip/current/include/netinet/ip_ipsp.h
@@ -0,0 +1,626 @@
+//==========================================================================
+//
+//      include/netinet/ipsp.h
+//
+//      
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//####BSDCOPYRIGHTBEGIN####
+//
+// -------------------------------------------
+//
+// Portions of this software may have been derived from OpenBSD or other sources,
+// and are covered by the appropriate copyright disclaimers included herein.
+//
+// -------------------------------------------
+//
+//####BSDCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    gthomas
+// Contributors: gthomas
+// Date:         2000-01-10
+// Purpose:      
+// Description:  
+//              
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+
+/*	$OpenBSD: ip_ipsp.h,v 1.50 1999/12/08 12:10:25 angelos Exp $	*/
+
+/*
+ * The authors of this code are John Ioannidis (ji@tla.org),
+ * Angelos D. Keromytis (kermit@csd.uch.gr),
+ * Niels Provos (provos@physnet.uni-hamburg.de) and
+ * Niklas Hallqvist (niklas@appli.se).
+ *
+ * This code was written by John Ioannidis for BSD/OS in Athens, Greece, 
+ * in November 1995.
+ *
+ * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
+ * by Angelos D. Keromytis.
+ *
+ * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
+ * and Niels Provos.
+ *
+ * Additional features in 1999 by Angelos D. Keromytis and Niklas Hallqvist.
+ *
+ * Copyright (c) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
+ * Angelos D. Keromytis and Niels Provos.
+ * Copyright (c) 1999 Niklas Hallqvist.
+ *
+ * Permission to use, copy, and modify this software without fee
+ * is hereby granted, provided that this entire notice is included in
+ * all copies of any software which is or includes a copy or
+ * modification of this software. 
+ * You may use this code under the GNU public license if you so wish. Please
+ * contribute changes back to the authors under this freer than GPL license
+ * so that we may further the use of strong encryption without limitations to
+ * all.
+ *
+ * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
+ * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
+ * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
+ * PURPOSE.
+ */
+
+#ifndef _NETINET_IPSP_H_
+#define _NETINET_IPSP_H_
+
+/*
+ * IPSP global definitions.
+ */
+
+#include <sys/types.h>
+#include <sys/queue.h>
+#include <netinet/in.h>
+#ifndef __ECOS
+#include <sys/md5k.h>
+#endif
+#include <netinet/ip_sha1.h>
+#include <netinet/ip_rmd160.h>
+#include <netinet/ip_blf.h>
+#include <netinet/ip_cast.h>
+#include <netinet/ip_skipjack.h>
+
+union sockaddr_union
+{
+    struct sockaddr     sa;
+    struct sockaddr_in  sin;
+    struct sockaddr_in6 sin6;
+};
+
+/* HMAC key sizes */
+#define MD5HMAC96_KEYSIZE       16
+#define SHA1HMAC96_KEYSIZE      20
+#define RIPEMD160HMAC96_KEYSIZE 20
+
+/* IV lengths */
+#define ESP_DES_IVS		8
+#define ESP_3DES_IVS		8
+#define ESP_BLF_IVS             8
+#define ESP_CAST_IVS            8
+#define ESP_SKIPJACK_IVS	8
+#define ESP_MAX_IVS		8       /* Keep updated */
+
+/* Block sizes -- it is assumed that they're powers of 2 */
+#define ESP_DES_BLKS		8
+#define ESP_3DES_BLKS		8
+#define ESP_BLF_BLKS            8
+#define ESP_CAST_BLKS           8
+#define ESP_SKIPJACK_BLKS	8
+#define ESP_MAX_BLKS            8       /* Keep updated */
+
+#define HMAC_BLOCK_LEN		64
+
+#define AH_HMAC_HASHLEN		12	/* 96 bits of authenticator */
+#define AH_HMAC_RPLENGTH        4	/* 32 bits of replay counter */
+#define AH_HMAC_INITIAL_RPL	1	/* Replay counter initial value */
+
+/* HMAC definitions */
+#define HMAC_IPAD_VAL           0x36
+#define HMAC_OPAD_VAL           0x5C
+#define HMAC_BLOCK_LEN          64
+
+/* Authenticator lengths */
+#define AH_MD5_ALEN		16
+#define AH_SHA1_ALEN		20
+#define AH_RMD160_ALEN		20
+#define AH_ALEN_MAX		20 	/* Keep updated */
+
+/* Reserved SPI numbers */
+#define SPI_LOCAL_USE		0
+#define SPI_RESERVED_MIN	1
+#define SPI_RESERVED_MAX	255
+
+struct sockaddr_encap
+{
+    u_int8_t	sen_len;		/* length */
+    u_int8_t	sen_family;		/* PF_KEY */
+    u_int16_t	sen_type;		/* see SENT_* */
+    union
+    {
+	u_int8_t	Data[16];	/* other stuff mapped here */
+
+	struct				/* SENT_IP4 */
+	{
+	    struct in_addr Src;
+	    struct in_addr Dst;
+	    u_int16_t Sport;
+	    u_int16_t Dport;
+	    u_int8_t Proto;
+	    u_int8_t Filler[3];
+	} Sip4;
+
+	struct				/* SENT_IP6 */
+	{
+	    struct in6_addr Src;
+	    struct in6_addr Dst;
+	    u_int16_t Sport;
+	    u_int16_t Dport;
+	    u_int8_t Proto;
+	    u_int8_t Filler[3];
+	} Sip6;
+
+	struct				/* SENT_IPSP */
+	{
+	    struct in_addr Dst;
+	    u_int32_t Spi;
+	    u_int8_t Sproto;
+	    u_int8_t Filler[7];
+	} Sipsp;
+
+	struct				/* SENT_IPSP6 */
+	{
+	    struct in6_addr Dst;
+	    u_int32_t Spi;
+	    u_int8_t Sproto;
+	    u_int8_t Filler[7];
+	} Sipsp6;
+    } Sen;
+};
+
+#define sen_data	  Sen.Data
+#define sen_ip_src	  Sen.Sip4.Src
+#define sen_ip_dst	  Sen.Sip4.Dst
+#define sen_proto	  Sen.Sip4.Proto
+#define sen_sport	  Sen.Sip4.Sport
+#define sen_dport	  Sen.Sip4.Dport
+#define sen_ip6_src	  Sen.Sip6.Src
+#define sen_ip6_dst	  Sen.Sip6.Dst
+#define sen_ip6_proto	  Sen.Sip6.Proto
+#define sen_ip6_sport	  Sen.Sip6.Sport
+#define sen_ip6_dport	  Sen.Sip6.Dport
+#define sen_ipsp_dst	  Sen.Sipsp.Dst
+#define sen_ipsp_spi	  Sen.Sipsp.Spi
+#define sen_ipsp_sproto	  Sen.Sipsp.Sproto
+#define sen_ipsp6_dst	  Sen.Sipsp6.Dst
+#define sen_ipsp6_spi	  Sen.Sipsp6.Spi
+#define sen_ipsp6_sproto  Sen.Sipsp6.Sproto
+
+/*
+ * The "type" is really part of the address as far as the routing
+ * system is concerned. By using only one bit in the type field
+ * for each type, we sort-of make sure that different types of
+ * encapsulation addresses won't be matched against the wrong type.
+ * 
+ */
+
+#define SENT_IP4	0x0001		/* data is two struct in_addr */
+#define SENT_IPSP	0x0002		/* data as in IP4/6 plus SPI */
+#define SENT_IP6        0x0004
+#define SENT_IPSP6      0x0008
+
+/*
+ * SENT_HDRLEN is the length of the "header"
+ * SENT_*_LEN are the lengths of various forms of sen_data
+ * SENT_*_OFF are the offsets in the sen_data array of various fields
+ */
+
+#define SENT_HDRLEN	(2 * sizeof(u_int8_t) + sizeof(u_int16_t))
+
+#define SENT_IP4_SRCOFF	(0)
+#define SENT_IP4_DSTOFF (sizeof (struct in_addr))
+
+#define SENT_IP6_SRCOFF (0)
+#define SENT_IP6_DSTOFF (sizeof (struct in6_addr))
+
+#define SENT_IP4_LEN	20
+#define SENT_IPSP_LEN	20
+#define SENT_IP6_LEN    44
+#define SENT_IPSP6_LEN  32
+
+#define NOTIFY_SOFT_EXPIRE      0       /* Soft expiration of SA */
+#define NOTIFY_HARD_EXPIRE      1       /* Hard expiration of SA */
+#define NOTIFY_REQUEST_SA       2       /* Establish an SA */
+  
+#define NOTIFY_SATYPE_CONF      1       /* SA should do encryption */
+#define NOTIFY_SATYPE_AUTH      2       /* SA should do authentication */
+#define NOTIFY_SATYPE_TUNNEL    4       /* SA should use tunneling */
+
+/*
+ * For encapsulation routes are possible not only for the destination
+ * address but also for the protocol, source and destination ports
+ * if available
+ */
+
+struct route_enc {
+    struct rtentry *re_rt;
+    struct sockaddr_encap re_dst;
+};
+
+struct flow
+{
+    struct flow          *flow_next;	/* Next in flow chain */
+    struct flow          *flow_prev;	/* Previous in flow chain */
+    struct tdb           *flow_sa;	/* Pointer to the SA */
+    union sockaddr_union  flow_src;   	/* Source address */
+    union sockaddr_union  flow_srcmask; /* Source netmask */
+    union sockaddr_union  flow_dst;	/* Destination address */
+    union sockaddr_union  flow_dstmask;	/* Destination netmask */
+    u_int8_t	          flow_proto;	/* Transport protocol, if applicable */
+    u_int8_t	          foo[3];	/* Alignment */
+};
+
+struct tdb				/* tunnel descriptor block */
+{
+    struct tdb	     *tdb_hnext;  	/* Next in hash chain */
+    struct tdb	     *tdb_onext;        /* Next in output */
+    struct tdb	     *tdb_inext;        /* Previous in output */
+
+    struct xformsw   *tdb_xform;	/* Transformation to use */
+    struct enc_xform *tdb_encalgxform;  /* Encryption algorithm xform */
+    struct auth_hash *tdb_authalgxform; /* Authentication algorithm xform */
+
+#define TDBF_UNIQUE	      0x00001	/* This should not be used by others */
+#define TDBF_TIMER            0x00002	/* Absolute expiration timer in use */
+#define TDBF_BYTES            0x00004	/* Check the byte counters */
+#define TDBF_ALLOCATIONS      0x00008	/* Check the flows counters */
+#define TDBF_INVALID          0x00010	/* This SPI is not valid yet/anymore */
+#define TDBF_FIRSTUSE         0x00020	/* Expire after first use */
+#define TDBF_HALFIV           0x00040   /* Use half-length IV (ESP old only) */
+#define TDBF_SOFT_TIMER       0x00080	/* Soft expiration */
+#define TDBF_SOFT_BYTES       0x00100	/* Soft expiration */
+#define TDBF_SOFT_ALLOCATIONS 0x00200	/* Soft expiration */
+#define TDBF_SOFT_FIRSTUSE    0x00400	/* Soft expiration */
+#define TDBF_PFS              0x00800	/* Ask for PFS from Key Mgmt. */
+#define TDBF_TUNNELING        0x01000	/* Force IP-IP encapsulation */
+    u_int32_t	      tdb_flags;  	/* Flags related to this TDB */
+
+    TAILQ_ENTRY(tdb)  tdb_expnext;	/* Expiration cluster list link */
+    TAILQ_ENTRY(tdb)  tdb_explink;	/* Expiration ordered list link */
+
+    u_int32_t         tdb_exp_allocations;  /* Expire after so many flows */
+    u_int32_t         tdb_soft_allocations; /* Expiration warning */ 
+    u_int32_t         tdb_cur_allocations;  /* Total number of allocations */
+
+    u_int64_t         tdb_exp_bytes;    /* Expire after so many bytes passed */
+    u_int64_t         tdb_soft_bytes;	/* Expiration warning */
+    u_int64_t         tdb_cur_bytes;	/* Current count of bytes */
+
+    u_int64_t         tdb_exp_timeout;	/* When does the SPI expire */
+    u_int64_t         tdb_soft_timeout;	/* Send a soft-expire warning */
+    u_int64_t         tdb_established;	/* When was the SPI established */
+    u_int64_t	      tdb_timeout;	/* Next absolute expiration time.  */
+
+    u_int64_t	      tdb_first_use;	  /* When was it first used */
+    u_int64_t         tdb_soft_first_use; /* Soft warning */
+    u_int64_t         tdb_exp_first_use;  /* Expire if tdb_first_use +
+					   * tdb_exp_first_use <= curtime */
+
+    u_int32_t	      tdb_spi;    	/* SPI */
+    u_int16_t         tdb_amxkeylen;    /* AH-old only */
+    u_int16_t         tdb_ivlen;        /* IV length */
+    u_int8_t	      tdb_sproto;	/* IPsec protocol */
+    u_int8_t          tdb_wnd;          /* Replay window */
+    u_int8_t          tdb_satype;       /* SA type (RFC2367, PF_KEY) */
+    u_int8_t          tdb_FILLER;       /* Padding */
+    
+    union sockaddr_union tdb_dst;	/* Destination address for this SA */
+    union sockaddr_union tdb_src;	/* Source address for this SA */
+    union sockaddr_union tdb_proxy;
+
+    u_int8_t         *tdb_key;          /* Key material (schedules) */
+    u_int8_t         *tdb_ictx;         /* Authentication contexts */
+    u_int8_t         *tdb_octx;
+    u_int8_t         *tdb_srcid;        /* Source ID for this SA */
+    u_int8_t         *tdb_dstid;        /* Destination ID for this SA */
+    u_int8_t         *tdb_amxkey;       /* AH-old only */
+
+    union
+    {
+	u_int8_t  Iv[ESP_3DES_IVS];     /* That's enough space */
+	u_int32_t Ivl;        	        /* Make sure this is 4 bytes */
+	u_int64_t Ivq; 		        /* Make sure this is 8 bytes! */
+    }IV;
+#define tdb_iv  IV.Iv
+#define tdb_ivl IV.Ivl
+#define tdb_ivq IV.Ivq
+
+    u_int32_t         tdb_rpl;	        /* Replay counter */
+    u_int32_t         tdb_bitmap;       /* Used for replay sliding window */
+    u_int32_t         tdb_initial;	/* Initial replay value */
+
+    u_int32_t         tdb_epoch;	/* Used by the kernfs interface */
+    u_int16_t         tdb_srcid_len;
+    u_int16_t         tdb_dstid_len;
+    u_int16_t         tdb_srcid_type;
+    u_int16_t         tdb_dstid_type;
+
+    caddr_t           tdb_interface;
+    struct flow	     *tdb_flow; 	/* Which flows use this SA */
+
+    struct tdb       *tdb_bind_out;	/* Outgoing SA to use */
+    TAILQ_HEAD(tdb_bind_head, tdb) tdb_bind_in;
+    TAILQ_ENTRY(tdb)  tdb_bind_in_next;	/* Refering Incoming SAs */
+    TAILQ_HEAD(tdb_inp_head, inpcb) tdb_inp;
+};
+
+#ifndef __ECOS
+union authctx_old {
+    MD5_CTX md5ctx;
+    SHA1_CTX sha1ctx;
+};
+
+union authctx {
+    MD5_CTX md5ctx;
+    SHA1_CTX sha1ctx;
+    RMD160_CTX rmd160ctx;
+};
+#endif
+
+struct tdb_ident {
+    u_int32_t spi;
+    union sockaddr_union dst;
+    u_int8_t proto;
+};
+
+struct auth_hash {
+    int type;
+    char *name;
+    u_int16_t keysize;
+    u_int16_t hashsize; 
+    u_int16_t ctxsize;
+    void (*Init)(void *);
+    void (*Update)(void *, u_int8_t *, u_int16_t);
+    void (*Final)(u_int8_t *, void *);
+};
+
+struct enc_xform {
+    int type;
+    char *name;
+    u_int16_t blocksize, ivsize;
+    u_int16_t minkey, maxkey;
+    u_int32_t ivmask;           /* Or all possible modes, zero iv = 1 */ 
+    void (*encrypt)(struct tdb *, u_int8_t *);
+    void (*decrypt)(struct tdb *, u_int8_t *);
+    void (*setkey)(u_int8_t **, u_int8_t *, int len);
+    void (*zerokey)(u_int8_t **);
+};
+
+struct ipsecinit
+{
+    u_int8_t       *ii_enckey;
+    u_int8_t       *ii_authkey;
+    u_int16_t       ii_enckeylen;
+    u_int16_t       ii_authkeylen;
+    u_int8_t        ii_encalg;
+    u_int8_t        ii_authalg;
+};
+	  
+struct xformsw
+{
+    u_short		xf_type;	/* Unique ID of xform */
+    u_short		xf_flags;	/* flags (see below) */
+    char		*xf_name;	/* human-readable name */
+    int		(*xf_attach)(void);	/* called at config time */
+    int		(*xf_init)(struct tdb *, struct xformsw *, struct ipsecinit *);
+    int		(*xf_zeroize)(struct tdb *); /* termination */
+    struct mbuf 	*(*xf_input)(struct mbuf *, struct tdb *, int, int); /* input */
+    int		(*xf_output)(struct mbuf *, struct tdb *, struct mbuf **, int, int);        /* output */
+};
+
+/* xform IDs */
+#define XF_IP4		1	/* IP inside IP */
+#define XF_OLD_AH	2	/* RFCs 1828 & 1852 */
+#define XF_OLD_ESP	3	/* RFCs 1829 & 1851 */
+#define XF_NEW_AH	4	/* AH HMAC 96bits */
+#define XF_NEW_ESP	5	/* ESP + auth 96bits + replay counter */
+#define XF_TCPSIGNATURE	6	/* TCP MD5 Signature option, RFC 2358 */
+
+/* xform attributes */
+#define XFT_AUTH	0x0001
+#define XFT_CONF	0x0100
+
+#define IPSEC_ZEROES_SIZE	256	/* Larger than an IP6 extension hdr. */
+#define IPSEC_KERNFS_BUFSIZE    4096
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+static __inline u_int64_t
+htonq(u_int64_t q)
+{
+    register u_int32_t u, l;
+    u = q >> 32;
+    l = (u_int32_t) q;
+        
+    return htonl(u) | ((u_int64_t)htonl(l) << 32);
+}
+
+#define ntohq(_x) htonq(_x)
+
+#elif BYTE_ORDER == BIG_ENDIAN
+
+#define htonq(_x) (_x)
+#define ntohq(_x) htonq(_x)
+
+#else
+#error  "Please fix <machine/endian.h>"
+#endif                                          
+
+#ifdef _KERNEL
+
+/*
+ * Protects all tdb lists.
+ * Must at least be splsoftnet (note: do not use splsoftclock as it is
+ * special on some architectures, assuming it is always an spl lowering
+ * operation).
+ */
+#define spltdb	splsoftnet
+
+extern int encdebug;
+extern int ipsec_in_use;
+extern u_int8_t hmac_ipad_buffer[64];
+extern u_int8_t hmac_opad_buffer[64];
+
+extern TAILQ_HEAD(expclusterlist_head, tdb) expclusterlist;
+extern TAILQ_HEAD(explist_head, tdb) explist;
+extern struct xformsw xformsw[], *xformswNXFORMSW;
+
+/* Check if a given tdb has encryption, authentication and/or tunneling */
+#define TDB_ATTRIB(x) (((x)->tdb_encalgxform ? NOTIFY_SATYPE_CONF : 0)| \
+		       ((x)->tdb_authalgxform ? NOTIFY_SATYPE_AUTH : 0))
+
+/* Traverse spi chain and get attributes */
+
+#define SPI_CHAIN_ATTRIB(have, TDB_DIR, TDBP) do {\
+	int s = spltdb(); \
+	struct tdb *tmptdb = (TDBP); \
+	\
+	(have) = 0; \
+	while (tmptdb && tmptdb->tdb_xform) { \
+	        if (tmptdb == NULL || tmptdb->tdb_flags & TDBF_INVALID) \
+	                break; \
+                (have) |= TDB_ATTRIB(tmptdb); \
+                tmptdb = tmptdb->TDB_DIR; \
+        } \
+	splx(s); \
+} while (0)
+
+/* Misc. */
+extern char *inet_ntoa4(struct in_addr);
+
+#ifdef INET6
+extern char *inet6_ntoa4(struct in6_addr);
+#endif /* INET6 */
+
+extern char *ipsp_address(union sockaddr_union);
+
+/* TDB management routines */
+extern void tdb_add_inp(struct tdb *tdb, struct inpcb *inp);
+extern u_int32_t reserve_spi(u_int32_t, u_int32_t, union sockaddr_union *,
+			     union sockaddr_union *, u_int8_t, int *);
+extern struct tdb *gettdb(u_int32_t, union sockaddr_union *, u_int8_t);
+extern void puttdb(struct tdb *);
+extern void tdb_delete(struct tdb *, int, int);
+extern int tdb_init(struct tdb *, u_int16_t, struct ipsecinit *);
+extern void tdb_expiration(struct tdb *, int);
+/* Flag values for the last argument of tdb_expiration().  */
+#define TDBEXP_EARLY	1	/* The tdb is likely to end up early.  */
+#define TDBEXP_TIMEOUT	2	/* Maintain expiration timeout.  */
+extern int tdb_walk(int (*)(struct tdb *, void *), void *);
+extern void handle_expirations(void *);
+
+/* Flow management routines */
+extern struct flow *get_flow(void);
+extern void put_flow(struct flow *, struct tdb *);
+extern void delete_flow(struct flow *, struct tdb *);
+extern struct flow *find_flow(union sockaddr_union *, union sockaddr_union *,
+			      union sockaddr_union *, union sockaddr_union *,
+			      u_int8_t, struct tdb *);
+extern struct flow *find_global_flow(union sockaddr_union *,
+				     union sockaddr_union *,
+				     union sockaddr_union *,
+				     union sockaddr_union *, u_int8_t);
+
+/* XF_IP4 */
+extern int ipe4_attach(void);
+extern int ipe4_init(struct tdb *, struct xformsw *, struct ipsecinit *);
+extern int ipe4_zeroize(struct tdb *);
+extern int ipe4_output(struct mbuf *, struct tdb *, struct mbuf **, int, int);
+extern void ipe4_input __P((struct mbuf *, ...));
+extern void ip4_input __P((struct mbuf *, ...));
+
+/* XF_ETHERIP */
+extern int etherip_output(struct mbuf *, struct tdb *, struct mbuf **,
+			  int, int);
+extern void etherip_input __P((struct mbuf *, ...));
+
+/* XF_OLD_AH */
+extern int ah_old_attach(void);
+extern int ah_old_init(struct tdb *, struct xformsw *, struct ipsecinit *);
+extern int ah_old_zeroize(struct tdb *);
+extern int ah_old_output(struct mbuf *, struct tdb *, struct mbuf **,
+			 int, int);
+extern struct mbuf *ah_old_input(struct mbuf *, struct tdb *, int, int);
+
+/* XF_NEW_AH */
+extern int ah_new_attach(void);
+extern int ah_new_init(struct tdb *, struct xformsw *, struct ipsecinit *);
+extern int ah_new_zeroize(struct tdb *);
+extern int ah_new_output(struct mbuf *, struct tdb *, struct mbuf **,
+			 int, int);
+extern struct mbuf *ah_new_input(struct mbuf *, struct tdb *, int, int);
+
+/* XF_OLD_ESP */
+extern int esp_old_attach(void);
+extern int esp_old_init(struct tdb *, struct xformsw *, struct ipsecinit *);
+extern int esp_old_zeroize(struct tdb *);
+extern int esp_old_output(struct mbuf *, struct tdb *, struct mbuf **,
+			  int, int);
+extern struct mbuf *esp_old_input(struct mbuf *, struct tdb *, int, int);
+
+/* XF_NEW_ESP */
+extern int esp_new_attach(void);
+extern int esp_new_init(struct tdb *, struct xformsw *, struct ipsecinit *);
+extern int esp_new_zeroize(struct tdb *);
+extern int esp_new_output(struct mbuf *, struct tdb *, struct mbuf **,
+			  int, int);
+extern struct mbuf *esp_new_input(struct mbuf *, struct tdb *, int, int);
+
+/* XF_TCPSIGNATURE */
+extern int tcp_signature_tdb_attach __P((void));
+extern int tcp_signature_tdb_init __P((struct tdb *, struct xformsw *,
+				       struct ipsecinit *));
+extern int tcp_signature_tdb_zeroize __P((struct tdb *));
+extern struct mbuf *tcp_signature_tdb_input __P((struct mbuf *, struct tdb *));
+extern int tcp_signature_tdb_output __P((struct mbuf *, struct tdb *,
+					 struct mbuf **));
+
+/* Padding */
+extern caddr_t m_pad(struct mbuf *, int, int);
+
+/* Replay window */
+extern int checkreplaywindow32(u_int32_t, u_int32_t, u_int32_t *, u_int32_t,
+                               u_int32_t *);
+
+extern unsigned char ipseczeroes[];
+#endif /* _KERNEL */
+#endif /* _NETINET_IPSP_H_ */