1 /* $NetBSD: un.h,v 1.56 2015/05/02 17:18:04 rtr 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 42 typedef __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 */ 49 struct 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_CREDS 0x0001 /* pass credentials to receiver */ 60 #define LOCAL_CONNWAIT 0x0002 /* connects block until accepted */ 61 #define LOCAL_PEEREID 0x0003 /* get peer identification */ 62 #endif 63 64 /* 65 * Data automatically stored inside connect() for use by LOCAL_PEEREID 66 */ 67 struct unpcbid { 68 pid_t unp_pid; /* process id */ 69 uid_t unp_euid; /* effective user id */ 70 gid_t unp_egid; /* effective group id */ 71 }; 72 73 #ifdef _KERNEL 74 75 struct unpcb; 76 struct socket; 77 struct sockopt; 78 struct sockaddr; 79 80 extern const struct pr_usrreqs unp_usrreqs; 81 82 int uipc_ctloutput(int, struct socket *, struct sockopt *); 83 void uipc_init(void); 84 kmutex_t *uipc_dgramlock(void); 85 kmutex_t *uipc_streamlock(void); 86 kmutex_t *uipc_rawlock(void); 87 88 int unp_connect(struct socket *, struct sockaddr *, struct lwp *); 89 int unp_connect2(struct socket *, struct socket *); 90 void unp_dispose(struct mbuf *); 91 int unp_externalize(struct mbuf *, struct lwp *, int); 92 93 #else /* !_KERNEL */ 94 95 /* actual length of an initialized sockaddr_un */ 96 #if defined(_NETBSD_SOURCE) 97 #define SUN_LEN(su) \ 98 (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path)) 99 #endif /* !_NetBSD_SOURCE */ 100 #endif /* _KERNEL */ 101 102 #endif /* !_SYS_UN_H_ */ 103