1 /* 2 * Copyright (c) 2005 Apple Computer, Inc. 3 * All rights reserved. 4 * 5 * @APPLE_BSD_LICENSE_HEADER_START@ 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 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 Apple Computer, Inc. ("Apple") nor the names of 17 * its contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 23 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 24 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 27 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * @APPLE_BSD_LICENSE_HEADER_END@ 32 * 33 * $P4: //depot/projects/trustedbsd/audit3/sys/bsm/audit.h#31 $ 34 * $FreeBSD$ 35 */ 36 37 #ifndef _BSM_AUDIT_H 38 #define _BSM_AUDIT_H 39 40 #include <sys/param.h> 41 #include <sys/cdefs.h> 42 #include <sys/queue.h> 43 44 #define AUDIT_RECORD_MAGIC 0x828a0f1b 45 #define MAX_AUDIT_RECORDS 20 46 #define MAXAUDITDATA (0x8000 - 1) 47 #define MAX_AUDIT_RECORD_SIZE MAXAUDITDATA 48 #define MIN_AUDIT_FILE_SIZE (512 * 1024) 49 50 /* 51 * Minimum noumber of free blocks on the filesystem containing the audit 52 * log necessary to avoid a hard log rotation. DO NOT SET THIS VALUE TO 0 53 * as the kernel does an unsigned compare, plus we want to leave a few blocks 54 * free so userspace can terminate the log, etc. 55 */ 56 #define AUDIT_HARD_LIMIT_FREE_BLOCKS 4 57 58 /* 59 * Triggers for the audit daemon. 60 */ 61 #define AUDIT_TRIGGER_MIN 1 62 #define AUDIT_TRIGGER_LOW_SPACE 1 63 #define AUDIT_TRIGGER_OPEN_NEW 2 64 #define AUDIT_TRIGGER_READ_FILE 3 65 #define AUDIT_TRIGGER_CLOSE_AND_DIE 4 66 #define AUDIT_TRIGGER_NO_SPACE 5 67 #define AUDIT_TRIGGER_MAX 5 68 69 /* 70 * Special file that will be read for trigger events from the kernel 71 * (FreeBSD). 72 */ 73 #define AUDIT_TRIGGER_FILE "/dev/audit" 74 75 /* 76 * The special device filename. 77 */ 78 #define AUDITDEV_FILENAME "audit" 79 80 /* 81 * Pre-defined audit IDs 82 */ 83 #define AU_DEFAUDITID -1 84 85 /* 86 * Define the masks for the classes of audit events. 87 */ 88 #define AU_NULL 0x00000000 89 #define AU_FREAD 0x00000001 90 #define AU_FWRITE 0x00000002 91 #define AU_FACCESS 0x00000004 92 #define AU_FMODIFY 0x00000008 93 #define AU_FCREATE 0x00000010 94 #define AU_FDELETE 0x00000020 95 #define AU_CLOSE 0x00000040 96 #define AU_PROCESS 0x00000080 97 #define AU_NET 0x00000100 98 #define AU_IPC 0x00000200 99 #define AU_NONAT 0x00000400 100 #define AU_ADMIN 0x00000800 101 #define AU_LOGIN 0x00001000 102 #define AU_TFM 0x00002000 103 #define AU_APPL 0x00004000 104 #define AU_SETL 0x00008000 105 #define AU_IFLOAT 0x00010000 106 #define AU_PRIV 0x00020000 107 #define AU_MAC_RW 0x00040000 108 #define AU_XCONN 0x00080000 109 #define AU_XCREATE 0x00100000 110 #define AU_XDELETE 0x00200000 111 #define AU_XIFLOAT 0x00400000 112 #define AU_XPRIVS 0x00800000 113 #define AU_XPRIVF 0x01000000 114 #define AU_XMOVE 0x02000000 115 #define AU_XDACF 0x04000000 116 #define AU_XMACF 0x08000000 117 #define AU_XSECATTR 0x10000000 118 #define AU_IOCTL 0x20000000 119 #define AU_EXEC 0x40000000 120 #define AU_OTHER 0x80000000 121 #define AU_ALL 0xffffffff 122 123 /* 124 * IPC types. 125 */ 126 #define AT_IPC_MSG ((u_char)1) /* Message IPC id. */ 127 #define AT_IPC_SEM ((u_char)2) /* Semaphore IPC id. */ 128 #define AT_IPC_SHM ((u_char)3) /* Shared mem IPC id. */ 129 130 /* 131 * Audit conditions. 132 */ 133 #define AUC_UNSET 0 134 #define AUC_AUDITING 1 135 #define AUC_NOAUDIT 2 136 #define AUC_DISABLED -1 137 138 /* 139 * auditon(2) commands. 140 */ 141 #define A_GETPOLICY 2 142 #define A_SETPOLICY 3 143 #define A_GETKMASK 4 144 #define A_SETKMASK 5 145 #define A_GETQCTRL 6 146 #define A_SETQCTRL 7 147 #define A_GETCWD 8 148 #define A_GETCAR 9 149 #define A_GETSTAT 12 150 #define A_SETSTAT 13 151 #define A_SETUMASK 14 152 #define A_SETSMASK 15 153 #define A_GETCOND 20 154 #define A_SETCOND 21 155 #define A_GETCLASS 22 156 #define A_SETCLASS 23 157 #define A_GETPINFO 24 158 #define A_SETPMASK 25 159 #define A_SETFSIZE 26 160 #define A_GETFSIZE 27 161 #define A_GETPINFO_ADDR 28 162 #define A_GETKAUDIT 29 163 #define A_SETKAUDIT 30 164 #define A_SENDTRIGGER 31 165 166 /* 167 * Audit policy controls. 168 */ 169 #define AUDIT_CNT 0x0001 170 #define AUDIT_AHLT 0x0002 171 #define AUDIT_ARGV 0x0004 172 #define AUDIT_ARGE 0x0008 173 #define AUDIT_SEQ 0x0010 174 #define AUDIT_WINDATA 0x0020 175 #define AUDIT_USER 0x0040 176 #define AUDIT_GROUP 0x0080 177 #define AUDIT_TRAIL 0x0100 178 #define AUDIT_PATH 0x0200 179 #define AUDIT_SCNT 0x0400 180 #define AUDIT_PUBLIC 0x0800 181 #define AUDIT_ZONENAME 0x1000 182 #define AUDIT_PERZONE 0x2000 183 184 /* 185 * Audit queue control parameters. 186 */ 187 #define AQ_HIWATER 100 188 #define AQ_MAXHIGH 10000 189 #define AQ_LOWATER 10 190 #define AQ_BUFSZ 1024 191 #define AQ_MAXBUFSZ 1048576 192 193 /* 194 * Default minimum percentage free space on file system. 195 */ 196 #define AU_FS_MINFREE 20 197 198 /* 199 * Type definitions used indicating the length of variable length addresses 200 * in tokens containing addresses, such as header fields. 201 */ 202 #define AU_IPv4 4 203 #define AU_IPv6 16 204 205 __BEGIN_DECLS 206 207 typedef uid_t au_id_t; 208 typedef pid_t au_asid_t; 209 typedef u_int16_t au_event_t; 210 typedef u_int16_t au_emod_t; 211 typedef u_int32_t au_class_t; 212 213 struct au_tid { 214 dev_t port; 215 u_int32_t machine; 216 }; 217 typedef struct au_tid au_tid_t; 218 219 struct au_tid_addr { 220 dev_t at_port; 221 u_int32_t at_type; 222 u_int32_t at_addr[4]; 223 }; 224 typedef struct au_tid_addr au_tid_addr_t; 225 226 struct au_mask { 227 unsigned int am_success; /* Success bits. */ 228 unsigned int am_failure; /* Failure bits. */ 229 }; 230 typedef struct au_mask au_mask_t; 231 232 struct auditinfo { 233 au_id_t ai_auid; /* Audit user ID. */ 234 au_mask_t ai_mask; /* Audit masks. */ 235 au_tid_t ai_termid; /* Terminal ID. */ 236 au_asid_t ai_asid; /* Audit session ID. */ 237 }; 238 typedef struct auditinfo auditinfo_t; 239 240 struct auditinfo_addr { 241 au_id_t ai_auid; /* Audit user ID. */ 242 au_mask_t ai_mask; /* Audit masks. */ 243 au_tid_addr_t ai_termid; /* Terminal ID. */ 244 au_asid_t ai_asid; /* Audit session ID. */ 245 }; 246 typedef struct auditinfo_addr auditinfo_addr_t; 247 248 struct auditpinfo { 249 pid_t ap_pid; /* ID of target process. */ 250 au_id_t ap_auid; /* Audit user ID. */ 251 au_mask_t ap_mask; /* Audit masks. */ 252 au_tid_t ap_termid; /* Terminal ID. */ 253 au_asid_t ap_asid; /* Audit session ID. */ 254 }; 255 typedef struct auditpinfo auditpinfo_t; 256 257 struct auditpinfo_addr { 258 pid_t ap_pid; /* ID of target process. */ 259 au_id_t ap_auid; /* Audit user ID. */ 260 au_mask_t ap_mask; /* Audit masks. */ 261 au_tid_addr_t ap_termid; /* Terminal ID. */ 262 au_asid_t ap_asid; /* Audit session ID. */ 263 }; 264 typedef struct auditpinfo_addr auditpinfo_addr_t; 265 266 /* 267 * Contents of token_t are opaque outside of libbsm. 268 */ 269 typedef struct au_token token_t; 270 271 /* 272 * Kernel audit queue control parameters. 273 */ 274 struct au_qctrl { 275 size_t aq_hiwater; 276 size_t aq_lowater; 277 size_t aq_bufsz; 278 clock_t aq_delay; 279 int aq_minfree; /* Minimum filesystem percent free space. */ 280 }; 281 typedef struct au_qctrl au_qctrl_t; 282 283 /* 284 * Structure for the audit statistics. 285 */ 286 struct audit_stat { 287 unsigned int as_version; 288 unsigned int as_numevent; 289 int as_generated; 290 int as_nonattrib; 291 int as_kernel; 292 int as_audit; 293 int as_auditctl; 294 int as_enqueue; 295 int as_written; 296 int as_wblocked; 297 int as_rblocked; 298 int as_dropped; 299 int as_totalsize; 300 unsigned int as_memused; 301 }; 302 typedef struct audit_stat au_stat_t; 303 304 /* 305 * Structure for the audit file statistics. 306 */ 307 struct audit_fstat { 308 u_quad_t af_filesz; 309 u_quad_t af_currsz; 310 }; 311 typedef struct audit_fstat au_fstat_t; 312 313 /* 314 * Audit to event class mapping. 315 */ 316 struct au_evclass_map { 317 au_event_t ec_number; 318 au_class_t ec_class; 319 }; 320 typedef struct au_evclass_map au_evclass_map_t; 321 322 /* 323 * Audit system calls. 324 */ 325 #if !defined(_KERNEL) && !defined(KERNEL) 326 int audit(const void *, int); 327 int auditon(int, void *, int); 328 int auditctl(const char *); 329 int getauid(au_id_t *); 330 int setauid(const au_id_t *); 331 int getaudit(struct auditinfo *); 332 int setaudit(const struct auditinfo *); 333 int getaudit_addr(struct auditinfo_addr *, int); 334 int setaudit_addr(const struct auditinfo_addr *, int); 335 #endif /* defined(_KERNEL) || defined(KERNEL) */ 336 337 __END_DECLS 338 339 #endif /* !_BSM_AUDIT_H */ 340