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 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_PRIV_H 27 #define _SYS_PRIV_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" /* from TSOL 8 */ 30 31 #include <sys/types.h> 32 #include <sys/cred.h> 33 #include <sys/priv_names.h> 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 typedef uint32_t priv_chunk_t; 40 typedef struct priv_set priv_set_t; 41 42 #ifdef _KERNEL 43 44 /* 45 * Kernel type definitions. 46 */ 47 typedef int priv_ptype_t; 48 typedef int priv_t; 49 50 #else /* _KERNEL */ 51 52 /* 53 * Userland type definitions. 54 */ 55 56 #ifdef __STDC__ 57 typedef const char *priv_ptype_t; 58 typedef const char *priv_t; 59 #else 60 typedef char *priv_ptype_t; 61 typedef char *priv_t; 62 #endif 63 64 #endif /* _KERNEL */ 65 66 /* 67 * priv_op_t indicates a privilege operation type 68 */ 69 typedef enum priv_op { 70 PRIV_ON, 71 PRIV_OFF, 72 PRIV_SET 73 } priv_op_t; 74 75 /* 76 * Privilege system call subcodes. 77 */ 78 79 #define PRIVSYS_SETPPRIV 0 80 #define PRIVSYS_GETPPRIV 1 81 #define PRIVSYS_GETIMPLINFO 2 82 #define PRIVSYS_SETPFLAGS 3 83 #define PRIVSYS_GETPFLAGS 4 84 85 /* 86 * Maximum length of a user defined privilege name. 87 */ 88 #define PRIVNAME_MAX 32 89 90 /* 91 * Privilege interface functions for those parts of the kernel that 92 * know nothing of the privilege internals. 93 * 94 * A privilege implementation can have a varying number of sets; sets 95 * consist of a number of priv_chunk_t's and the size is expressed as such. 96 * The privileges can be represented as 97 * 98 * priv_chunk_t privs[info.priv_nsets][info.priv_setsize] 99 * ... priv_infosize of extra information ... 100 * 101 * Extra data contained in the privilege information consists of chunks 102 * of data with specified size and type all headed by a priv_info_t header 103 * which defines both the type of information as well as the size of the 104 * information. ((char*)&info)+info->priv_info_size should be rounded up 105 * to point to the next piece of information. 106 */ 107 108 typedef struct priv_impl_info { 109 uint32_t priv_headersize; /* sizeof (priv_impl_info) */ 110 uint32_t priv_flags; /* additional flags */ 111 uint32_t priv_nsets; /* number of priv sets */ 112 uint32_t priv_setsize; /* size in priv_chunk_t */ 113 uint32_t priv_max; /* highest actual valid priv */ 114 uint32_t priv_infosize; /* Per proc. additional info */ 115 uint32_t priv_globalinfosize; /* Per system info */ 116 } priv_impl_info_t; 117 118 #define PRIV_IMPL_INFO_SIZE(p) \ 119 ((p)->priv_headersize + (p)->priv_globalinfosize) 120 121 #define PRIV_PRPRIV_INFO_OFFSET(p) \ 122 (sizeof (*(p)) + \ 123 ((p)->pr_nsets * (p)->pr_setsize - 1) * sizeof (priv_chunk_t)) 124 125 #define PRIV_PRPRIV_SIZE(p) \ 126 (PRIV_PRPRIV_INFO_OFFSET(p) + (p)->pr_infosize) 127 128 /* 129 * Per credential flags. 130 */ 131 #define PRIV_DEBUG 0x0001 /* User debugging */ 132 #define PRIV_AWARE 0x0002 /* Is privilege aware */ 133 #define PRIV_AWARE_INHERIT 0x0004 /* Inherit awareness */ 134 #define __PROC_PROTECT 0x0008 /* Private */ 135 #define NET_MAC_AWARE 0x0010 /* Is MAC aware */ 136 #define NET_MAC_AWARE_INHERIT 0x0020 /* Inherit MAC aware */ 137 138 /* user-settable flags: */ 139 #define PRIV_USER (PRIV_DEBUG | NET_MAC_AWARE | NET_MAC_AWARE_INHERIT) 140 141 /* 142 * Header of the privilege info data structure; multiple structures can 143 * follow the privilege sets and priv_impl_info structures. 144 */ 145 typedef struct priv_info { 146 uint32_t priv_info_type; 147 uint32_t priv_info_size; 148 } priv_info_t; 149 150 typedef struct priv_info_uint { 151 priv_info_t info; 152 uint_t val; 153 } priv_info_uint_t; 154 155 /* 156 * Global privilege set information item; the actual size of the array is 157 * {priv_setsize}. 158 */ 159 typedef struct priv_info_set { 160 priv_info_t info; 161 priv_chunk_t set[1]; 162 } priv_info_set_t; 163 164 /* 165 * names[1] is a place holder which can contain multiple NUL terminated, 166 * non-empty strings. 167 */ 168 169 typedef struct priv_info_names { 170 priv_info_t info; 171 int cnt; /* number of strings */ 172 char names[1]; /* "string1\0string2\0 ..stringN\0" */ 173 } priv_info_names_t; 174 175 /* 176 * Privilege information types. 177 */ 178 #define PRIV_INFO_SETNAMES 0x0001 179 #define PRIV_INFO_PRIVNAMES 0x0002 180 #define PRIV_INFO_BASICPRIVS 0x0003 181 #define PRIV_INFO_FLAGS 0x0004 182 183 /* 184 * Special "privileges" used to indicate special conditions in privilege 185 * debugging/tracing code. 186 */ 187 #define PRIV_ALL (-1) /* All privileges required */ 188 #define PRIV_MULTIPLE (-2) /* More than one */ 189 #define PRIV_NONE (-3) /* No value */ 190 #define PRIV_ALLZONE (-4) /* All privileges in zone */ 191 #define PRIV_GLOBAL (-5) /* Must be in global zone */ 192 193 #ifdef _KERNEL 194 195 #define PRIV_ALLOC 0x1 196 197 struct proc; 198 struct prpriv; 199 struct cred; 200 201 extern int priv_prgetprivsize(struct prpriv *); 202 extern void cred2prpriv(const struct cred *, struct prpriv *); 203 extern int priv_pr_spriv(struct proc *, struct prpriv *, const struct cred *); 204 205 extern priv_impl_info_t *priv_hold_implinfo(void); 206 extern void priv_release_implinfo(void); 207 extern size_t priv_get_implinfo_size(void); 208 extern const priv_set_t *priv_getset(const struct cred *, int); 209 extern void priv_getinfo(const struct cred *, void *); 210 extern int priv_getbyname(const char *, uint_t); 211 extern int priv_getsetbyname(const char *, int); 212 extern const char *priv_getbynum(int); 213 extern const char *priv_getsetbynum(int); 214 215 extern void priv_emptyset(priv_set_t *); 216 extern void priv_fillset(priv_set_t *); 217 extern void priv_addset(priv_set_t *, int); 218 extern void priv_delset(priv_set_t *, int); 219 extern boolean_t priv_ismember(const priv_set_t *, int); 220 extern boolean_t priv_isemptyset(const priv_set_t *); 221 extern boolean_t priv_isfullset(const priv_set_t *); 222 extern boolean_t priv_isequalset(const priv_set_t *, const priv_set_t *); 223 extern boolean_t priv_issubset(const priv_set_t *, const priv_set_t *); 224 extern int priv_proc_cred_perm(const struct cred *, struct proc *, 225 struct cred **, int); 226 extern void priv_intersect(const priv_set_t *, priv_set_t *); 227 extern void priv_union(const priv_set_t *, priv_set_t *); 228 extern void priv_inverse(priv_set_t *); 229 230 extern void priv_set_PA(cred_t *); 231 extern void priv_adjust_PA(cred_t *); 232 extern boolean_t priv_can_clear_PA(const cred_t *); 233 234 extern int setpflags(uint_t, uint_t, cred_t *); 235 extern uint_t getpflags(uint_t, const cred_t *); 236 237 #endif /* _KERNEL */ 238 239 #ifdef __cplusplus 240 } 241 #endif 242 243 #endif /* _SYS_PRIV_H */ 244