1/* $NetBSD: in_pcb.h,v 1.60 2016/04/26 08:44:44 ozaki-r Exp $ */
2
3/*
4 * Copyright (C) 1995, 1996, 1997, and 1998 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_H_
64#define _NETINET_IN_PCB_H_
65
66#include <sys/queue.h>
67#include <net/route.h>
68#include <netinet/in_pcb_hdr.h>
69
70/*
71 * Common structure pcb for internet protocol implementation.
72 * Here are stored pointers to local and foreign host table
73 * entries, local and foreign socket numbers, and pointers
74 * up (to a socket structure) and down (to a protocol-specific)
75 * control block.
76 */
77struct inpcb {
78 struct inpcb_hdr inp_head;
79#define inp_hash inp_head.inph_hash
80#define inp_queue inp_head.inph_queue
81#define inp_af inp_head.inph_af
82#define inp_ppcb inp_head.inph_ppcb
83#define inp_state inp_head.inph_state
84#define inp_portalgo inp_head.inph_portalgo
85#define inp_socket inp_head.inph_socket
86#define inp_table inp_head.inph_table
87#define inp_sp inp_head.inph_sp
88 struct route inp_route; /* placeholder for routing entry */
89 u_int16_t inp_fport; /* foreign port */
90 u_int16_t inp_lport; /* local port */
91 int inp_flags; /* generic IP/datagram flags */
92 struct ip inp_ip; /* header prototype; should have more */
93 struct mbuf *inp_options; /* IP options */
94 struct ip_moptions *inp_moptions; /* IP multicast options */
95 int inp_errormtu; /* MTU of last xmit status = EMSGSIZE */
96 uint8_t inp_ip_minttl;
97 bool inp_bindportonsend;
98};
99
100#define inp_faddr inp_ip.ip_dst
101#define inp_laddr inp_ip.ip_src
102
103/* flags in inp_flags: */
104#define INP_RECVOPTS 0x0001 /* receive incoming IP options */
105#define INP_RECVRETOPTS 0x0002 /* receive IP options for reply */
106#define INP_RECVDSTADDR 0x0004 /* receive IP dst address */
107#define INP_HDRINCL 0x0008 /* user supplies entire IP header */
108#define INP_HIGHPORT 0x0010 /* (unused; FreeBSD compat) */
109#define INP_LOWPORT 0x0020 /* user wants "low" port binding */
110#define INP_ANONPORT 0x0040 /* port chosen for user */
111#define INP_RECVIF 0x0080 /* receive incoming interface */
112/* XXX should move to an UDP control block */
113#define INP_ESPINUDP 0x0100 /* ESP over UDP for NAT-T */
114#define INP_ESPINUDP_NON_IKE 0x0200 /* ESP over UDP for NAT-T */
115#define INP_ESPINUDP_ALL (INP_ESPINUDP|INP_ESPINUDP_NON_IKE)
116#define INP_NOHEADER 0x0400 /* Kernel removes IP header
117 * before feeding a packet
118 * to the raw socket user.
119 * The socket user will
120 * not supply an IP header.
121 * Cancels INP_HDRINCL.
122 */
123#define INP_RECVTTL 0x0800 /* receive incoming IP TTL */
124#define INP_PKTINFO 0x1000 /* receive dst packet info */
125#define INP_RECVPKTINFO 0x2000 /* receive dst packet info */
126#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
127 INP_RECVIF|INP_RECVTTL|INP_RECVPKTINFO|\
128 INP_PKTINFO)
129
130#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
131
132#ifdef _KERNEL
133void in_losing(struct inpcb *);
134int in_pcballoc(struct socket *, void *);
135int in_pcbbind(void *, struct sockaddr_in *, struct lwp *);
136int in_pcbconnect(void *, struct sockaddr_in *, struct lwp *);
137void in_pcbdetach(void *);
138void in_pcbdisconnect(void *);
139void in_pcbinit(struct inpcbtable *, int, int);
140struct inpcb *
141 in_pcblookup_port(struct inpcbtable *,
142 struct in_addr, u_int, int, struct vestigial_inpcb *);
143struct inpcb *
144 in_pcblookup_bind(struct inpcbtable *,
145 struct in_addr, u_int);
146struct inpcb *
147 in_pcblookup_connect(struct inpcbtable *,
148 struct in_addr, u_int, struct in_addr, u_int,
149 struct vestigial_inpcb *);
150int in_pcbnotify(struct inpcbtable *, struct in_addr, u_int,
151 struct in_addr, u_int, int, void (*)(struct inpcb *, int));
152void in_pcbnotifyall(struct inpcbtable *, struct in_addr, int,
153 void (*)(struct inpcb *, int));
154void in_pcbpurgeif0(struct inpcbtable *, struct ifnet *);
155void in_pcbpurgeif(struct inpcbtable *, struct ifnet *);
156void in_purgeifmcast(struct ip_moptions *, struct ifnet *);
157void in_pcbstate(struct inpcb *, int);
158void in_rtchange(struct inpcb *, int);
159void in_setpeeraddr(struct inpcb *, struct sockaddr_in *);
160void in_setsockaddr(struct inpcb *, struct sockaddr_in *);
161struct rtentry *
162 in_pcbrtentry(struct inpcb *);
163#endif
164
165#endif /* !_NETINET_IN_PCB_H_ */
166