1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * Portions of this source code were derived from Berkeley 4.3 BSD 31 * under license from the Regents of the University of California. 32 */ 33 34 #ifndef _SYS_CRED_H 35 #define _SYS_CRED_H 36 37 #pragma ident "%Z%%M% %I% %E% SMI" 38 39 #include <sys/types.h> 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /* 46 * The credential is an opaque kernel private data structure defined in 47 * <sys/cred_impl.h>. 48 */ 49 50 typedef struct cred cred_t; 51 52 #ifdef _KERNEL 53 54 #define CRED() curthread->t_cred 55 56 struct proc; /* cred.h is included in proc.h */ 57 struct prcred; 58 struct ksid; 59 struct ksidlist; 60 61 struct auditinfo_addr; /* cred.h is included in audit.h */ 62 63 extern int ngroups_max; 64 /* 65 * kcred is used when you need all privileges. 66 */ 67 extern struct cred *kcred; 68 69 extern void cred_init(void); 70 extern void crhold(cred_t *); 71 extern void crfree(cred_t *); 72 extern cred_t *cralloc(void); /* all but ref uninitialized */ 73 extern cred_t *cralloc_ksid(void); /* cralloc() + ksid alloc'ed */ 74 extern cred_t *crget(void); /* initialized */ 75 extern cred_t *crcopy(cred_t *); 76 extern void crcopy_to(cred_t *, cred_t *); 77 extern cred_t *crdup(cred_t *); 78 extern void crdup_to(cred_t *, cred_t *); 79 extern cred_t *crgetcred(void); 80 extern void crset(struct proc *, cred_t *); 81 extern int groupmember(gid_t, const cred_t *); 82 extern int supgroupmember(gid_t, const cred_t *); 83 extern int hasprocperm(const cred_t *, const cred_t *); 84 extern int prochasprocperm(struct proc *, struct proc *, const cred_t *); 85 extern int crcmp(const cred_t *, const cred_t *); 86 extern cred_t *zone_kcred(void); 87 88 extern uid_t crgetuid(const cred_t *); 89 extern uid_t crgetruid(const cred_t *); 90 extern uid_t crgetsuid(const cred_t *); 91 extern gid_t crgetgid(const cred_t *); 92 extern gid_t crgetrgid(const cred_t *); 93 extern gid_t crgetsgid(const cred_t *); 94 extern zoneid_t crgetzoneid(const cred_t *); 95 extern projid_t crgetprojid(const cred_t *); 96 97 extern cred_t *crgetmapped(const cred_t *); 98 99 100 extern const struct auditinfo_addr *crgetauinfo(const cred_t *); 101 extern struct auditinfo_addr *crgetauinfo_modifiable(cred_t *); 102 103 extern uint_t crgetref(const cred_t *); 104 105 extern const gid_t *crgetgroups(const cred_t *); 106 107 extern int crgetngroups(const cred_t *); 108 109 /* 110 * Sets real, effective and/or saved uid/gid; 111 * -1 argument accepted as "no change". 112 */ 113 extern int crsetresuid(cred_t *, uid_t, uid_t, uid_t); 114 extern int crsetresgid(cred_t *, gid_t, gid_t, gid_t); 115 116 /* 117 * Sets real, effective and saved uids/gids all to the same 118 * values. Both values must be non-negative and <= MAXUID 119 */ 120 extern int crsetugid(cred_t *, uid_t, gid_t); 121 122 extern int crsetgroups(cred_t *, int, gid_t *); 123 124 /* 125 * Private interface for setting zone association of credential. 126 */ 127 struct zone; 128 extern void crsetzone(cred_t *, struct zone *); 129 extern struct zone *crgetzone(const cred_t *); 130 131 /* 132 * Private interface for setting project id in credential. 133 */ 134 extern void crsetprojid(cred_t *, projid_t); 135 136 /* 137 * Private interface for nfs. 138 */ 139 extern cred_t *crnetadjust(cred_t *); 140 141 /* 142 * Private interface for procfs. 143 */ 144 extern void cred2prcred(const cred_t *, struct prcred *); 145 146 /* 147 * Private interfaces for Rampart Trusted Solaris. 148 */ 149 struct ts_label_s; 150 extern struct ts_label_s *crgetlabel(const cred_t *); 151 extern boolean_t crisremote(const cred_t *); 152 153 /* 154 * Private interfaces for ephemeral uids. 155 */ 156 #define VALID_UID(id, zn) \ 157 ((id) <= MAXUID || valid_ephemeral_uid((zn), (id))) 158 159 #define VALID_GID(id, zn) \ 160 ((id) <= MAXUID || valid_ephemeral_gid((zn), (id))) 161 162 extern boolean_t valid_ephemeral_uid(struct zone *, uid_t); 163 extern boolean_t valid_ephemeral_gid(struct zone *, gid_t); 164 165 extern int eph_uid_alloc(struct zone *, int, uid_t *, int); 166 extern int eph_gid_alloc(struct zone *, int, gid_t *, int); 167 168 extern void crsetsid(cred_t *, struct ksid *, int); 169 extern void crsetsidlist(cred_t *, struct ksidlist *); 170 171 extern struct ksid *crgetsid(const cred_t *, int); 172 extern struct ksidlist *crgetsidlist(const cred_t *); 173 174 extern int crsetpriv(cred_t *, ...); 175 176 #endif /* _KERNEL */ 177 178 #ifdef __cplusplus 179 } 180 #endif 181 182 #endif /* _SYS_CRED_H */ 183