1/* $NetBSD: in_pcb_hdr.h,v 1.13 2017/06/02 03:41:20 ozaki-r 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 TAILQ_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_portalgo;
81 struct socket *inph_socket; /* back pointer to socket */
82 struct inpcbtable *inph_table;
83 struct inpcbpolicy *inph_sp; /* security policy */
84};
85
86#define sotoinpcb_hdr(so) ((struct inpcb_hdr *)(so)->so_pcb)
87#define inph_locked(inph) (solocked((inph)->inph_socket))
88
89LIST_HEAD(inpcbhead, inpcb_hdr);
90
91struct vestigial_inpcb;
92struct in6_addr;
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
113TAILQ_HEAD(inpcbqueue, inpcb_hdr);
114
115struct inpcbtable {
116 struct inpcbqueue inpt_queue;
117 struct inpcbhead *inpt_porthashtbl;
118 struct inpcbhead *inpt_bindhashtbl;
119 struct inpcbhead *inpt_connecthashtbl;
120 u_long inpt_porthash;
121 u_long inpt_bindhash;
122 u_long inpt_connecthash;
123 u_int16_t inpt_lastport;
124 u_int16_t inpt_lastlow;
125
126 vestigial_hooks_t *vestige;
127};
128#define inpt_lasthi inpt_lastport
129
130/* states in inp_state: */
131#define INP_ATTACHED 0
132#define INP_BOUND 1
133#define INP_CONNECTED 2
134
135#endif /* !_NETINET_IN_PCB_HDR_H_ */
136