1/* $NetBSD: un.h,v 1.57 2016/04/06 19:45:46 roy Exp $ */
2
3/*
4 * Copyright (c) 1982, 1986, 1993
5 * The Regents of the University of California. 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 University 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 REGENTS 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 REGENTS 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 * @(#)un.h 8.3 (Berkeley) 2/19/95
32 */
33
34#ifndef _SYS_UN_H_
35#define _SYS_UN_H_
36
37#include <sys/ansi.h>
38#include <sys/featuretest.h>
39#include <sys/types.h>
40
41#ifndef sa_family_t
42typedef __sa_family_t sa_family_t;
43#define sa_family_t __sa_family_t
44#endif
45
46/*
47 * Definitions for UNIX IPC domain.
48 */
49struct sockaddr_un {
50 uint8_t sun_len; /* total sockaddr length */
51 sa_family_t sun_family; /* AF_LOCAL */
52 char sun_path[104]; /* path name (gag) */
53};
54
55/*
56 * Socket options for UNIX IPC domain.
57 */
58#if defined(_NETBSD_SOURCE)
59#define LOCAL_OCREDS 0x0001 /* pass credentials to receiver */
60#define LOCAL_CONNWAIT 0x0002 /* connects block until accepted */
61#define LOCAL_PEEREID 0x0003 /* get peer identification */
62#define LOCAL_CREDS 0x0004 /* pass credentials to receiver */
63#endif
64
65/*
66 * Data automatically stored inside connect() for use by LOCAL_PEEREID
67 */
68struct unpcbid {
69 pid_t unp_pid; /* process id */
70 uid_t unp_euid; /* effective user id */
71 gid_t unp_egid; /* effective group id */
72};
73
74#ifdef _KERNEL
75
76struct unpcb;
77struct socket;
78struct sockopt;
79struct sockaddr;
80
81extern const struct pr_usrreqs unp_usrreqs;
82
83int uipc_ctloutput(int, struct socket *, struct sockopt *);
84void uipc_init(void);
85kmutex_t *uipc_dgramlock(void);
86kmutex_t *uipc_streamlock(void);
87kmutex_t *uipc_rawlock(void);
88
89int unp_connect(struct socket *, struct sockaddr *, struct lwp *);
90int unp_connect2(struct socket *, struct socket *);
91void unp_dispose(struct mbuf *);
92int unp_externalize(struct mbuf *, struct lwp *, int);
93
94#else /* !_KERNEL */
95
96/* actual length of an initialized sockaddr_un */
97#if defined(_NETBSD_SOURCE)
98#define SUN_LEN(su) \
99 (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
100#endif /* !_NetBSD_SOURCE */
101#endif /* _KERNEL */
102
103#endif /* !_SYS_UN_H_ */
104