1/*	$NetBSD: in_pcb_hdr.h,v 1.6 2011/05/03 18:28:45 dyoung Exp $	*/
2
3/*
4 * Copyright (C) 2003 WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/*
33 * Copyright (c) 1982, 1986, 1990, 1993
34 *	The Regents of the University of California.  All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 *    notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 *    notice, this list of conditions and the following disclaimer in the
43 *    documentation and/or other materials provided with the distribution.
44 * 3. Neither the name of the University nor the names of its contributors
45 *    may be used to endorse or promote products derived from this software
46 *    without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 *	@(#)in_pcb.h	8.1 (Berkeley) 6/10/93
61 */
62
63#ifndef _NETINET_IN_PCB_HDR_H_
64#define _NETINET_IN_PCB_HDR_H_
65
66#include <sys/queue.h>
67
68struct inpcbpolicy;
69
70/*
71 * align it with inpcb and in6pcb!
72 */
73struct inpcb_hdr {
74	LIST_ENTRY(inpcb_hdr) inph_hash;
75	LIST_ENTRY(inpcb_hdr) inph_lhash;
76	CIRCLEQ_ENTRY(inpcb_hdr) inph_queue;
77	int	  inph_af;		/* address family - AF_INET */
78	void *	  inph_ppcb;		/* pointer to per-protocol pcb */
79	int	  inph_state;		/* bind/connect state */
80	int       inph_rfc6056algo;
81	struct	  socket *inph_socket;	/* back pointer to socket */
82	struct	  inpcbtable *inph_table;
83#if 1 /* IPSEC */
84	struct	  inpcbpolicy *inph_sp;	/* security policy */
85#endif
86};
87
88#define	sotoinpcb_hdr(so)	((struct inpcb_hdr *)(so)->so_pcb)
89
90LIST_HEAD(inpcbhead, inpcb_hdr);
91
92struct vestigial_inpcb;
93
94/* Hooks for vestigial pcb entries.
95 * If vestigial entries exist for a table (TCP only)
96 * the vestigial pointer is set.
97 */
98typedef struct vestigial_hooks {
99	/* IPv4 hooks */
100	void	*(*init_ports4)(struct in_addr, u_int, int);
101	int	(*next_port4)(void *, struct vestigial_inpcb *);
102	int	(*lookup4)(struct in_addr, uint16_t,
103			   struct in_addr, uint16_t,
104			   struct vestigial_inpcb *);
105	/* IPv6 hooks */
106	void	*(*init_ports6)(const struct in6_addr*, u_int, int);
107	int	(*next_port6)(void *, struct vestigial_inpcb *);
108	int	(*lookup6)(const struct in6_addr *, uint16_t,
109			   const struct in6_addr *, uint16_t,
110			   struct vestigial_inpcb *);
111} vestigial_hooks_t;
112
113struct inpcbtable {
114	CIRCLEQ_HEAD(, inpcb_hdr) inpt_queue;
115	struct	  inpcbhead *inpt_porthashtbl;
116	struct	  inpcbhead *inpt_bindhashtbl;
117	struct	  inpcbhead *inpt_connecthashtbl;
118	u_long	  inpt_porthash;
119	u_long	  inpt_bindhash;
120	u_long	  inpt_connecthash;
121	u_int16_t inpt_lastport;
122	u_int16_t inpt_lastlow;
123
124	vestigial_hooks_t *vestige;
125};
126#define inpt_lasthi inpt_lastport
127
128/* states in inp_state: */
129#define	INP_ATTACHED		0
130#define	INP_BOUND		1
131#define	INP_CONNECTED		2
132
133#endif /* !_NETINET_IN_PCB_HDR_H_ */
134