bsd/sys/un.h

   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 #ifndef _SA_FAMILY_T
  72 #define _SA_FAMILY_T
  73 typedef __uint8_t               sa_family_t;
  74 #endif
  75
  76 /*
  77  * [XSI] Definitions for UNIX IPC domain.
  78  */
  79 struct  sockaddr_un {
  80         unsigned char   sun_len;        /* sockaddr len including null */
  81         sa_family_t     sun_family;     /* [XSI] AF_UNIX */
  82         char            sun_path[104];  /* [XSI] path name (gag) */
  83 };
  84
  85 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
  86
  87 /* Level number of get/setsockopt for local domain sockets */
  88 #define SOL_LOCAL               0
  89
  90 /* Socket options. */
  91 #define LOCAL_PEERCRED          0x001           /* retrieve peer credentails */
  92 #define LOCAL_PEERPID           0x002           /* retrieve peer pid */
  93
  94 #endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
  95
  96
  97 #ifdef KERNEL
  98 #ifdef PRIVATE
  99 #include <kern/locks.h>
 100 __BEGIN_DECLS
 101 struct mbuf;
 102 struct socket;
 103 struct sockopt;
 104
 105 int     uipc_usrreq(struct socket *so, int req, struct mbuf *m,
 106                 struct mbuf *nam, struct mbuf *control);
 107 int     uipc_ctloutput (struct socket *so, struct sockopt *sopt);
 108 int     unp_connect2(struct socket *so, struct socket *so2);
 109 void    unp_dispose(struct mbuf *m);
 110 int     unp_externalize(struct mbuf *rights);
 111 void    unp_init(void) __attribute__((section("__TEXT, initcode")));
 112 extern  struct pr_usrreqs uipc_usrreqs;
 113 int     unp_lock(struct socket *, int, void *);
 114 int     unp_unlock(struct socket *, int, void *);
 115 lck_mtx_t* unp_getlock(struct socket *, int);
 116 __END_DECLS
 117 #endif /* PRIVATE */
 118 #else /* !KERNEL */
 119
 120 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 121 /* actual length of an initialized sockaddr_un */
 122 #define SUN_LEN(su) \
 123         (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
 124 #endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 125
 126 #endif /* KERNEL */
 127
 128 #endif /* !_SYS_UN_H_ */