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 struct credklpd; 61 62 struct auditinfo_addr; /* cred.h is included in audit.h */ 63 64 extern int ngroups_max; 65 /* 66 * kcred is used when you need all privileges. 67 */ 68 extern struct cred *kcred; 69 70 extern void cred_init(void); 71 extern void crhold(cred_t *); 72 extern void crfree(cred_t *); 73 extern cred_t *cralloc(void); /* all but ref uninitialized */ 74 extern cred_t *cralloc_ksid(void); /* cralloc() + ksid alloc'ed */ 75 extern cred_t *crget(void); /* initialized */ 76 extern cred_t *crcopy(cred_t *); 77 extern void crcopy_to(cred_t *, cred_t *); 78 extern cred_t *crdup(cred_t *); 79 extern void crdup_to(cred_t *, cred_t *); 80 extern cred_t *crgetcred(void); 81 extern void crset(struct proc *, cred_t *); 82 extern int groupmember(gid_t, const cred_t *); 83 extern int supgroupmember(gid_t, const cred_t *); 84 extern int hasprocperm(const cred_t *, const cred_t *); 85 extern int prochasprocperm(struct proc *, struct proc *, const cred_t *); 86 extern int crcmp(const cred_t *, const cred_t *); 87 extern cred_t *zone_kcred(void); 88 89 extern uid_t crgetuid(const cred_t *); 90 extern uid_t crgetruid(const cred_t *); 91 extern uid_t crgetsuid(const cred_t *); 92 extern gid_t crgetgid(const cred_t *); 93 extern gid_t crgetrgid(const cred_t *); 94 extern gid_t crgetsgid(const cred_t *); 95 extern zoneid_t crgetzoneid(const cred_t *); 96 extern projid_t crgetprojid(const cred_t *); 97 98 extern cred_t *crgetmapped(const cred_t *); 99 100 101 extern const struct auditinfo_addr *crgetauinfo(const cred_t *); 102 extern struct auditinfo_addr *crgetauinfo_modifiable(cred_t *); 103 104 extern uint_t crgetref(const cred_t *); 105 106 extern const gid_t *crgetgroups(const cred_t *); 107 108 extern int crgetngroups(const cred_t *); 109 110 /* 111 * Sets real, effective and/or saved uid/gid; 112 * -1 argument accepted as "no change". 113 */ 114 extern int crsetresuid(cred_t *, uid_t, uid_t, uid_t); 115 extern int crsetresgid(cred_t *, gid_t, gid_t, gid_t); 116 117 /* 118 * Sets real, effective and saved uids/gids all to the same 119 * values. Both values must be non-negative and <= MAXUID 120 */ 121 extern int crsetugid(cred_t *, uid_t, gid_t); 122 123 extern int crsetgroups(cred_t *, int, gid_t *); 124 125 /* 126 * Private interface for setting zone association of credential. 127 */ 128 struct zone; 129 extern void crsetzone(cred_t *, struct zone *); 130 extern struct zone *crgetzone(const cred_t *); 131 132 /* 133 * Private interface for setting project id in credential. 134 */ 135 extern void crsetprojid(cred_t *, projid_t); 136 137 /* 138 * Private interface for nfs. 139 */ 140 extern cred_t *crnetadjust(cred_t *); 141 142 /* 143 * Private interface for procfs. 144 */ 145 extern void cred2prcred(const cred_t *, struct prcred *); 146 147 /* 148 * Private interfaces for Rampart Trusted Solaris. 149 */ 150 struct ts_label_s; 151 extern struct ts_label_s *crgetlabel(const cred_t *); 152 extern boolean_t crisremote(const cred_t *); 153 154 /* 155 * Private interfaces for ephemeral uids. 156 */ 157 #define VALID_UID(id, zn) \ 158 ((id) <= MAXUID || valid_ephemeral_uid((zn), (id))) 159 160 #define VALID_GID(id, zn) \ 161 ((id) <= MAXUID || valid_ephemeral_gid((zn), (id))) 162 163 extern boolean_t valid_ephemeral_uid(struct zone *, uid_t); 164 extern boolean_t valid_ephemeral_gid(struct zone *, gid_t); 165 166 extern int eph_uid_alloc(struct zone *, int, uid_t *, int); 167 extern int eph_gid_alloc(struct zone *, int, gid_t *, int); 168 169 extern void crsetsid(cred_t *, struct ksid *, int); 170 extern void crsetsidlist(cred_t *, struct ksidlist *); 171 172 extern struct ksid *crgetsid(const cred_t *, int); 173 extern struct ksidlist *crgetsidlist(const cred_t *); 174 175 extern int crsetpriv(cred_t *, ...); 176 177 extern struct credklpd *crgetcrklpd(const cred_t *); 178 extern void crsetcrklpd(cred_t *, struct credklpd *); 179 180 #endif /* _KERNEL */ 181 182 #ifdef __cplusplus 183 } 184 #endif 185 186 #endif /* _SYS_CRED_H */ 187