1 /* $OpenBSD: ucred.h,v 1.14 2022/03/17 14:23:34 visa Exp $ */ 2 /* $NetBSD: ucred.h,v 1.12 1995/06/01 22:44:50 jtc Exp $ */ 3 4 /* 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)ucred.h 8.2 (Berkeley) 1/4/94 33 */ 34 35 #ifndef _SYS_UCRED_H_ 36 #define _SYS_UCRED_H_ 37 38 #include <sys/refcnt.h> 39 #include <sys/syslimits.h> 40 41 /* 42 * Credentials. 43 */ 44 struct ucred { 45 struct refcnt cr_refcnt; /* reference count */ 46 47 /* The following fields are all copied by crset() */ 48 #define cr_startcopy cr_uid 49 uid_t cr_uid; /* effective user id */ 50 uid_t cr_ruid; /* Real user id. */ 51 uid_t cr_svuid; /* Saved effective user id. */ 52 gid_t cr_gid; /* effective group id */ 53 gid_t cr_rgid; /* Real group id. */ 54 gid_t cr_svgid; /* Saved effective group id. */ 55 short cr_ngroups; /* number of groups */ 56 gid_t cr_groups[NGROUPS_MAX]; /* groups */ 57 }; 58 #define NOCRED ((struct ucred *)-1) /* no credential available */ 59 #define FSCRED ((struct ucred *)-2) /* filesystem credential */ 60 61 /* 62 * Userspace version, for use in syscalls arguments 63 */ 64 struct xucred { 65 uid_t cr_uid; /* user id */ 66 gid_t cr_gid; /* group id */ 67 short cr_ngroups; /* number of groups */ 68 gid_t cr_groups[NGROUPS_MAX]; /* groups */ 69 }; 70 71 #ifdef _KERNEL 72 73 int crfromxucred(struct ucred *, const struct xucred *); 74 void crset(struct ucred *, const struct ucred *); 75 struct ucred *crcopy(struct ucred *cr); 76 struct ucred *crdup(struct ucred *cr); 77 void crfree(struct ucred *cr); 78 struct ucred *crget(void); 79 struct ucred *crhold(struct ucred *); 80 int suser(struct proc *p); 81 int suser_ucred(struct ucred *cred); 82 83 #endif /* _KERNEL */ 84 85 #endif /* !_SYS_UCRED_H_ */ 86