new file mode 100644
--- /dev/null
+++ b/packages/net/tcpip/current/include/netinet/in_pcb.h
@@ -0,0 +1,334 @@
+//==========================================================================
+//
+//      include/netinet/in_pcb.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: in_pcb.h,v 1.19 1999/12/12 12:10:43 itojun Exp $	*/
+/*	$NetBSD: in_pcb.h,v 1.14 1996/02/13 23:42:00 christos Exp $	*/
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 1982, 1986, 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)in_pcb.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _NETINET_IN_PCB_H_
+#define _NETINET_IN_PCB_H_
+
+#include <sys/queue.h>
+#if 0	/*KAME IPSEC*/
+#include <netinet6/ipsec.h>
+#endif
+#include <netinet6/ip6.h>
+#include <netinet6/ip6_var.h>
+#include <netinet6/icmp6.h>
+#include <netinet/ip_ipsp.h>
+
+union inpaddru {
+	struct in6_addr iau_addr6;
+	struct {
+		uint8_t pad[12];
+		struct in_addr inaddr;	/* easier transition */
+	} iau_a4u;
+};
+
+/*
+ * Common structure pcb for internet protocol implementation.
+ * Here are stored pointers to local and foreign host table
+ * entries, local and foreign socket numbers, and pointers
+ * up (to a socket structure) and down (to a protocol-specific)
+ * control block.
+ */
+struct inpcb {
+	LIST_ENTRY(inpcb) inp_hash;
+	CIRCLEQ_ENTRY(inpcb) inp_queue;
+	struct	  inpcbtable *inp_table;
+	union	  inpaddru inp_faddru;		/* Foreign address. */
+	union	  inpaddru inp_laddru;		/* Local address. */
+#define	inp_faddr	inp_faddru.iau_a4u.inaddr
+#define	inp_faddr6	inp_faddru.iau_addr6
+#define	inp_laddr	inp_laddru.iau_a4u.inaddr
+#define	inp_laddr6	inp_laddru.iau_addr6
+	u_int16_t inp_fport;		/* foreign port */
+	u_int16_t inp_lport;		/* local port */
+	struct	  socket *inp_socket;	/* back pointer to socket */
+	caddr_t	  inp_ppcb;		/* pointer to per-protocol pcb */
+	union {				/* Route (notice increased size). */
+		struct route ru_route;
+		struct route_in6 ru_route6;
+	} inp_ru;
+#define	inp_route	inp_ru.ru_route
+#define	inp_route6	inp_ru.ru_route6
+	int	  inp_flags;		/* generic IP/datagram flags */
+	union {				/* Header prototype. */
+		struct ip hu_ip;
+		struct ip6_hdr hu_ipv6;
+	} inp_hu;
+#define	inp_ip		inp_hu.hu_ip
+#define	inp_ipv6	inp_hu.hu_ipv6
+	struct	  mbuf *inp_options;	/* IP options */
+	struct ip6_pktopts *inp_outputopts6; /* IP6 options for outgoing packets */
+	int inp_hops;
+	union {
+		struct ip_moptions *mou_mo;    /* IPv4 multicast options */
+		struct ip6_moptions *mou_mo6; /* IPv6 multicast options */
+	} inp_mou;
+#define inp_moptions inp_mou.mou_mo
+#define inp_moptions6 inp_mou.mou_mo6
+	u_char	  inp_seclevel[3];	/* Only the first 3 are used for now */
+#define SL_AUTH           0             /* Authentication level */
+#define SL_ESP_TRANS      1             /* ESP transport level */
+#define SL_ESP_NETWORK    2             /* ESP network (encapsulation) level */
+	u_int8_t  inp_secrequire:4,     /* Condensed State from above */
+	          inp_secresult:4;	/* Result from Key Management */
+#define SR_FAILED         1             /* Negotiation failed permanently */
+#define SR_SUCCESS        2             /* SA successfully established */
+#define SR_WAIT           3             /* Waiting for SA */
+	TAILQ_ENTRY(inpcb) inp_tdb_next;
+	struct tdb     *inp_tdb;	/* If tdb_dst matches our dst, use */
+	int	inp_fflowinfo;          /* Foreign flowlabel & priority */
+	int	inp_csumoffset;
+	struct	icmp6_filter *inp_icmp6filt;
+#if 0 /*KAME IPSEC*/
+	struct secpolicy *inp_sp;	/* security policy. It may not be
+					 * used according to policy selection.
+					 */
+#endif
+};
+
+struct inpcbtable {
+	CIRCLEQ_HEAD(, inpcb) inpt_queue;
+	LIST_HEAD(inpcbhead, inpcb) *inpt_hashtbl;
+	u_long	  inpt_hash;
+	u_int16_t inpt_lastport;
+};
+
+/* flags in inp_flags: */
+#define	INP_RECVOPTS	0x001	/* receive incoming IP options */
+#define	INP_RECVRETOPTS	0x002	/* receive IP options for reply */
+#define	INP_RECVDSTADDR	0x004	/* receive IP dst address */
+
+#define	INP_RXDSTOPTS	INP_RECVOPTS
+#define	INP_RXHOPOPTS	INP_RECVRETOPTS
+#define	INP_RXINFO	INP_RECVDSTADDR
+#define	INP_RXSRCRT	0x010
+#define	INP_HOPLIMIT	0x020
+
+#define	INP_CONTROLOPTS	(INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR| \
+	    INP_RXSRCRT|INP_HOPLIMIT)
+
+#define	INP_HDRINCL	0x008	/* user supplies entire IP header */
+#define	INP_HIGHPORT	0x010	/* user wants "high" port binding */
+#define	INP_LOWPORT	0x020	/* user wants "low" port binding */
+
+/*
+ * These flags' values should be determined by either the transport
+ * protocol at PRU_BIND, PRU_LISTEN, PRU_CONNECT, etc, or by in_pcb*().
+ */
+#define	INP_IPV6	0x100	/* sotopf(inp->inp_socket) == PF_INET6 */
+#define	INP_IPV6_UNDEC	0x200	/* PCB is PF_INET6, but listens for V4/V6 */
+#define	INP_IPV6_MAPPED	0x400	/* PF_INET6 PCB which is connected to
+				 * an IPv4 host, or is bound to
+				 * an IPv4 address (specified with
+				 * the mapped form of v6 addresses) */
+#define INP_IPV6_MCAST	0x800	/* Set if inp_moptions points to ipv6 ones */
+
+#if 1	/*KAME*/
+/* flags in in6p_flags */
+#define IN6P_RECVOPTS	INP_RECVOPTS	/* receive incoming IP6 options */
+#define IN6P_RECVRETOPTS INP_RECVRETOPTS /* receive IP6 options for reply */
+#define IN6P_RECVDSTADDR INP_RECVDSTADDR /* receive IP6 dst address */
+#define IN6P_HIGHPORT	INP_HIGHPORT	/* user wants "high" port binding */
+#define IN6P_LOWPORT	INP_LOWPORT	/* user wants "low" port binding */
+#define IN6P_ANONPORT	0x40		/* port chosen for user */
+#define IN6P_FAITH	0x80		/* accept FAITH'ed connections */
+#define IN6P_PKTINFO	0x010000
+#define IN6P_HOPLIMIT	0x020000
+#define IN6P_NEXTHOP	0x040000
+#define IN6P_HOPOPTS	0x080000
+#define IN6P_DSTOPTS	0x100000
+#define IN6P_RTHDR	0x200000
+#define IN6P_CONTROLOPTS	(0x3f0000 | IN6P_RECVOPTS | IN6P_RECVRETOPTS | IN6P_RECVDSTADDR)
+#endif
+
+#define	INPLOOKUP_WILDCARD	1
+#define	INPLOOKUP_SETLOCAL	2
+#define	INPLOOKUP_IPV6		4
+
+#define	sotoinpcb(so)	((struct inpcb *)(so)->so_pcb)
+
+/* macros for handling bitmap of ports not to allocate dynamically */
+#define	DP_MAPBITS	(sizeof(u_int32_t) * NBBY)
+#define	DP_MAPSIZE	(howmany(IPPORT_RESERVED/2, DP_MAPBITS))
+#define	DP_SET(m, p)	((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] |= (1 << ((p) % DP_MAPBITS)))
+#define	DP_CLR(m, p)	((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] &= ~(1 << ((p) % DP_MAPBITS)))
+#define	DP_ISSET(m, p)	((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] & (1 << ((p) % DP_MAPBITS)))
+
+/* default values for baddynamicports [see ip_init()] */
+#define	DEFBADDYNAMICPORTS_TCP	{ 749, 750, 751, 760, 761, 871, 0 }
+#define	DEFBADDYNAMICPORTS_UDP	{ 750, 751, 0 }
+
+struct baddynamicports {
+	u_int32_t tcp[DP_MAPSIZE];
+	u_int32_t udp[DP_MAPSIZE];
+};
+
+#ifdef _KERNEL
+
+#define sotopf(so)  (so->so_proto->pr_domain->dom_family)
+
+void	 in_losing __P((struct inpcb *));
+int	 in_pcballoc __P((struct socket *, void *));
+int	 in_pcbbind __P((void *, struct mbuf *));
+int	 in_pcbconnect __P((void *, struct mbuf *));
+void	 in_pcbdetach __P((void *));
+void	 in_pcbdisconnect __P((void *));
+struct inpcb *
+	 in_pcbhashlookup __P((struct inpcbtable *, struct in_addr,
+			       u_int, struct in_addr, u_int));
+#ifdef INET6
+struct inpcb *
+	 in6_pcbhashlookup __P((struct inpcbtable *, struct in6_addr *,
+			       u_int, struct in6_addr *, u_int));
+int	 in6_pcbbind __P((struct inpcb *, struct mbuf *));
+int	 in6_pcbconnect __P((struct inpcb *, struct mbuf *));
+int	 in6_setsockaddr __P((struct inpcb *, struct mbuf *));
+int	 in6_setpeeraddr __P((struct inpcb *, struct mbuf *));
+#endif /* INET6 */
+void	 in_pcbinit __P((struct inpcbtable *, int));
+struct inpcb *
+	 in_pcblookup __P((struct inpcbtable *, void *, u_int, void *,
+	    u_int, int));
+void	 in_pcbnotify __P((struct inpcbtable *, struct sockaddr *,
+	    u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
+void	 in_pcbnotifyall __P((struct inpcbtable *, struct sockaddr *,
+	    int, void (*)(struct inpcb *, int)));
+void	 in_pcbrehash __P((struct inpcb *));
+void	 in_rtchange __P((struct inpcb *, int));
+void	 in_setpeeraddr __P((struct inpcb *, struct mbuf *));
+void	 in_setsockaddr __P((struct inpcb *, struct mbuf *));
+int	 in_baddynamic __P((u_int16_t, u_int16_t));
+extern struct sockaddr_in *in_selectsrc __P((struct sockaddr_in *,
+	struct route *, int, struct ip_moptions *, int *));
+
+/* INET6 stuff */
+int	in6_pcbnotify __P((struct inpcbtable *, struct sockaddr *,
+			   u_int, struct in6_addr *, u_int, int,
+			   void (*)(struct inpcb *, int)));
+struct 	in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
+				     struct ip6_pktopts *,
+				     struct ip6_moptions *,
+				     struct route_in6 *,
+				     struct in6_addr *, int *));
+int	in6_selecthlim __P((struct inpcb *, struct ifnet *));
+#endif
+
+#endif // _NETINET_IN_PCB_H_