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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_ACL_H 28 #define _SYS_ACL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #define MAX_ACL_ENTRIES (1024) /* max entries of each type */ 39 typedef struct acl { 40 int a_type; /* the type of ACL entry */ 41 uid_t a_id; /* the entry in -uid or gid */ 42 o_mode_t a_perm; /* the permission field */ 43 } aclent_t; 44 45 typedef struct ace { 46 uid_t a_who; /* uid or gid */ 47 uint32_t a_access_mask; /* read,write,... */ 48 uint16_t a_flags; /* see below */ 49 uint16_t a_type; /* allow or deny */ 50 } ace_t; 51 52 typedef struct acl_info acl_t; 53 54 /* 55 * The following are Defined types for an aclent_t. 56 */ 57 #define USER_OBJ (0x01) /* object owner */ 58 #define USER (0x02) /* additional users */ 59 #define GROUP_OBJ (0x04) /* owning group of the object */ 60 #define GROUP (0x08) /* additional groups */ 61 #define CLASS_OBJ (0x10) /* file group class and mask entry */ 62 #define OTHER_OBJ (0x20) /* other entry for the object */ 63 #define ACL_DEFAULT (0x1000) /* default flag */ 64 /* default object owner */ 65 #define DEF_USER_OBJ (ACL_DEFAULT | USER_OBJ) 66 /* defalut additional users */ 67 #define DEF_USER (ACL_DEFAULT | USER) 68 /* default owning group */ 69 #define DEF_GROUP_OBJ (ACL_DEFAULT | GROUP_OBJ) 70 /* default additional groups */ 71 #define DEF_GROUP (ACL_DEFAULT | GROUP) 72 /* default mask entry */ 73 #define DEF_CLASS_OBJ (ACL_DEFAULT | CLASS_OBJ) 74 /* default other entry */ 75 #define DEF_OTHER_OBJ (ACL_DEFAULT | OTHER_OBJ) 76 77 /* 78 * The following are defined for ace_t. 79 */ 80 #define ACE_READ_DATA 0x00000001 81 #define ACE_LIST_DIRECTORY 0x00000001 82 #define ACE_WRITE_DATA 0x00000002 83 #define ACE_ADD_FILE 0x00000002 84 #define ACE_APPEND_DATA 0x00000004 85 #define ACE_ADD_SUBDIRECTORY 0x00000004 86 #define ACE_READ_NAMED_ATTRS 0x00000008 87 #define ACE_WRITE_NAMED_ATTRS 0x00000010 88 #define ACE_EXECUTE 0x00000020 89 #define ACE_DELETE_CHILD 0x00000040 90 #define ACE_READ_ATTRIBUTES 0x00000080 91 #define ACE_WRITE_ATTRIBUTES 0x00000100 92 #define ACE_DELETE 0x00010000 93 #define ACE_READ_ACL 0x00020000 94 #define ACE_WRITE_ACL 0x00040000 95 #define ACE_WRITE_OWNER 0x00080000 96 #define ACE_SYNCHRONIZE 0x00100000 97 98 #define ACE_FILE_INHERIT_ACE 0x0001 99 #define ACE_DIRECTORY_INHERIT_ACE 0x0002 100 #define ACE_NO_PROPAGATE_INHERIT_ACE 0x0004 101 #define ACE_INHERIT_ONLY_ACE 0x0008 102 #define ACE_SUCCESSFUL_ACCESS_ACE_FLAG 0x0010 103 #define ACE_FAILED_ACCESS_ACE_FLAG 0x0020 104 #define ACE_IDENTIFIER_GROUP 0x0040 105 #define ACE_OWNER 0x1000 106 #define ACE_GROUP 0x2000 107 #define ACE_EVERYONE 0x4000 108 109 #define ACE_ACCESS_ALLOWED_ACE_TYPE 0x0000 110 #define ACE_ACCESS_DENIED_ACE_TYPE 0x0001 111 #define ACE_SYSTEM_AUDIT_ACE_TYPE 0x0002 112 #define ACE_SYSTEM_ALARM_ACE_TYPE 0x0003 113 114 #define ACE_ALL_PERMS (ACE_READ_DATA|ACE_LIST_DIRECTORY|ACE_WRITE_DATA| \ 115 ACE_ADD_FILE|ACE_APPEND_DATA|ACE_ADD_SUBDIRECTORY|ACE_READ_NAMED_ATTRS| \ 116 ACE_WRITE_NAMED_ATTRS|ACE_EXECUTE|ACE_DELETE_CHILD|ACE_READ_ATTRIBUTES| \ 117 ACE_WRITE_ATTRIBUTES|ACE_DELETE|ACE_READ_ACL|ACE_WRITE_ACL| \ 118 ACE_WRITE_OWNER|ACE_SYNCHRONIZE) 119 120 /* 121 * The following flags are supported by both NFSv4 ACLs and ace_t. 122 */ 123 #define ACE_NFSV4_SUP_FLAGS (ACE_FILE_INHERIT_ACE | \ 124 ACE_DIRECTORY_INHERIT_ACE | \ 125 ACE_NO_PROPAGATE_INHERIT_ACE | \ 126 ACE_INHERIT_ONLY_ACE | \ 127 ACE_IDENTIFIER_GROUP) 128 129 /* cmd args to acl(2) for aclent_t */ 130 #define GETACL 1 131 #define SETACL 2 132 #define GETACLCNT 3 133 134 /* cmd's to manipulate ace acls. */ 135 #define ACE_GETACL 4 136 #define ACE_SETACL 5 137 #define ACE_GETACLCNT 6 138 139 /* minimal acl entries from GETACLCNT */ 140 #define MIN_ACL_ENTRIES 4 141 142 #if !defined(_KERNEL) 143 144 /* acl check errors */ 145 #define GRP_ERROR 1 146 #define USER_ERROR 2 147 #define OTHER_ERROR 3 148 #define CLASS_ERROR 4 149 #define DUPLICATE_ERROR 5 150 #define MISS_ERROR 6 151 #define MEM_ERROR 7 152 #define ENTRY_ERROR 8 153 154 155 /* 156 * similar to ufs_acl.h: changed to char type for user commands (tar, cpio) 157 * Attribute types 158 */ 159 #define UFSD_FREE ('0') /* Free entry */ 160 #define UFSD_ACL ('1') /* Access Control Lists */ 161 #define UFSD_DFACL ('2') /* reserved for future use */ 162 #define ACE_ACL ('3') /* ace_t style acls */ 163 164 /* 165 * flag to [f]acl_get() 166 * controls whether a trivial acl should be returned. 167 */ 168 #define ACL_NO_TRIVIAL 0x2 169 170 /* 171 * Legacy aclcheck errors for aclent_t ACLs 172 */ 173 #define EACL_GRP_ERROR GRP_ERROR 174 #define EACL_USER_ERROR USER_ERROR 175 #define EACL_OTHER_ERROR OTHER_ERROR 176 #define EACL_CLASS_ERROR CLASS_ERROR 177 #define EACL_DUPLICATE_ERROR DUPLICATE_ERROR 178 #define EACL_MISS_ERROR MISS_ERROR 179 #define EACL_MEM_ERROR MEM_ERROR 180 #define EACL_ENTRY_ERROR ENTRY_ERROR 181 182 #define EACL_INHERIT_ERROR 9 /* invalid inherit flags */ 183 #define EACL_FLAGS_ERROR 10 /* unknown flag value */ 184 #define EACL_PERM_MASK_ERROR 11 /* unknown permission */ 185 #define EACL_COUNT_ERROR 12 /* invalid acl count */ 186 187 #define EACL_INVALID_SLOT 13 /* invalid acl slot */ 188 #define EACL_NO_ACL_ENTRY 14 /* Entry doesn't exist */ 189 #define EACL_DIFF_TYPE 15 /* acls aren't same type */ 190 191 #define EACL_INVALID_USER_GROUP 16 /* need user/group name */ 192 #define EACL_INVALID_STR 17 /* invalid acl string */ 193 #define EACL_FIELD_NOT_BLANK 18 /* can't have blank field */ 194 #define EACL_INVALID_ACCESS_TYPE 19 /* invalid access type */ 195 #define EACL_UNKNOWN_DATA 20 /* Unrecognized data in ACL */ 196 #define EACL_MISSING_FIELDS 21 /* missing fields in acl */ 197 198 #define EACL_INHERIT_NOTDIR 22 /* Need dir for inheritance */ 199 200 extern int aclcheck(aclent_t *, int, int *); 201 extern int acltomode(aclent_t *, int, mode_t *); 202 extern int aclfrommode(aclent_t *, int, mode_t *); 203 extern int aclsort(int, int, aclent_t *); 204 extern char *acltotext(aclent_t *, int); 205 extern aclent_t *aclfromtext(char *, int *); 206 extern void acl_free(acl_t *); 207 extern int acl_get(const char *, int, acl_t **); 208 extern int facl_get(int, int, acl_t **); 209 extern int acl_set(const char *, acl_t *acl); 210 extern int facl_set(int, acl_t *acl); 211 extern int acl_strip(const char *, uid_t, gid_t, mode_t); 212 extern int acl_trivial(const char *); 213 extern char *acl_totext(acl_t *); 214 extern int acl_fromtext(const char *, acl_t **); 215 extern int acl_check(acl_t *, int); 216 217 #else /* !defined(_KERNEL) */ 218 219 extern void ksort(caddr_t, int, int, int (*)(void *, void *)); 220 extern int cmp2acls(void *, void *); 221 222 #endif /* !defined(_KERNEL) */ 223 224 #if defined(__STDC__) 225 extern int acl(const char *path, int cmd, int cnt, void *buf); 226 extern int facl(int fd, int cmd, int cnt, void *buf); 227 #else /* !__STDC__ */ 228 extern int acl(); 229 extern int facl(); 230 #endif /* defined(__STDC__) */ 231 232 #ifdef __cplusplus 233 } 234 #endif 235 236 #endif /* _SYS_ACL_H */ 237