xref: /xnu-11417.140.69/bsd/sys/un.h (revision 43a90889846e00bfb5cf1d255cdc0a701a1e05a4)
1 /*
2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 /*
29  * Copyright (c) 1982, 1986, 1993
30  *	The Regents of the University of California.  All rights reserved.
31  *
32  * Redistribution and use in source and binary forms, with or without
33  * modification, are permitted provided that the following conditions
34  * are met:
35  * 1. Redistributions of source code must retain the above copyright
36  *    notice, this list of conditions and the following disclaimer.
37  * 2. Redistributions in binary form must reproduce the above copyright
38  *    notice, this list of conditions and the following disclaimer in the
39  *    documentation and/or other materials provided with the distribution.
40  * 3. All advertising materials mentioning features or use of this software
41  *    must display the following acknowledgement:
42  *	This product includes software developed by the University of
43  *	California, Berkeley and its contributors.
44  * 4. 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  *	@(#)un.h	8.3 (Berkeley) 2/19/95
61  */
62 
63 #ifndef _SYS_UN_H_
64 #define _SYS_UN_H_
65 
66 #include <sys/appleapiopts.h>
67 #include <sys/cdefs.h>
68 #include <sys/_types.h>
69 
70 /* [XSI] The sa_family_t type shall be defined as described in <sys/socket.h> */
71 #include <sys/_types/_sa_family_t.h>
72 
73 /*
74  * [XSI] Definitions for UNIX IPC domain.
75  */
76 struct  sockaddr_un {
77 	unsigned char   sun_len;        /* sockaddr len including null */
78 	sa_family_t     sun_family;     /* [XSI] AF_UNIX */
79 	char            sun_path[104];  /* [XSI] path name (gag) */
80 };
81 
82 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
83 
84 /* Level number of get/setsockopt for local domain sockets */
85 #define SOL_LOCAL               0
86 
87 /* Socket options. */
88 #define LOCAL_PEERCRED          0x001           /* retrieve peer credentials */
89 #define LOCAL_PEERPID           0x002           /* retrieve peer pid */
90 #define LOCAL_PEEREPID          0x003           /* retrieve eff. peer pid */
91 #define LOCAL_PEERUUID          0x004           /* retrieve peer UUID */
92 #define LOCAL_PEEREUUID         0x005           /* retrieve eff. peer UUID */
93 #define LOCAL_PEERTOKEN         0x006           /* retrieve peer audit token */
94 
95 #endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
96 
97 
98 #ifdef KERNEL
99 #ifdef PRIVATE
100 #include <kern/locks.h>
101 __BEGIN_DECLS
102 struct mbuf;
103 struct socket;
104 struct sockopt;
105 
106 int     uipc_usrreq(struct socket *so, int req, struct mbuf *m,
107     struct mbuf *nam, struct mbuf *control);
108 int     uipc_ctloutput(struct socket *so, struct sockopt *sopt);
109 int     unp_connect2(struct socket *so, struct socket *so2);
110 void    unp_dispose(struct mbuf *m);
111 int     unp_externalize(struct mbuf *rights);
112 void    unp_init(void);
113 extern  struct pr_usrreqs uipc_usrreqs;
114 int     unp_lock(struct socket *, int, void *);
115 int     unp_unlock(struct socket *, int, void *);
116 lck_mtx_t* unp_getlock(struct socket *, int);
117 
118 #define UNP_FORGE_PATH(sun, len) ({                                     \
119 	__unsafe_forge_bidi_indexable(char *, &sun->sun_path, len);     \
120 })
121 
122 __END_DECLS
123 #endif /* PRIVATE */
124 #else /* !KERNEL */
125 
126 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
127 /* actual length of an initialized sockaddr_un */
128 #define SUN_LEN(su) \
129 	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
130 #endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
131 #endif /* KERNEL */
132 
133 #endif /* !_SYS_UN_H_ */
134