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#34 $ 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 /* Below low watermark. */ 63 #define AUDIT_TRIGGER_ROTATE_KERNEL 2 /* Kernel requests rotate. */ 64 #define AUDIT_TRIGGER_READ_FILE 3 /* Re-read config file. */ 65 #define AUDIT_TRIGGER_CLOSE_AND_DIE 4 /* Terminate audit. */ 66 #define AUDIT_TRIGGER_NO_SPACE 5 /* Below min free space. */ 67 #define AUDIT_TRIGGER_ROTATE_USER 6 /* User requests roate. */ 68 #define AUDIT_TRIGGER_MAX 6 69 70 /* 71 * The special device filename (FreeBSD). 72 */ 73 #define AUDITDEV_FILENAME "audit" 74 #define AUDIT_TRIGGER_FILE ("/dev/" AUDITDEV_FILENAME) 75 76 /* 77 * Pre-defined audit IDs 78 */ 79 #define AU_DEFAUDITID -1 80 81 /* 82 * Define the masks for the classes of audit events. 83 */ 84 #define AU_NULL 0x00000000 85 #define AU_FREAD 0x00000001 86 #define AU_FWRITE 0x00000002 87 #define AU_FACCESS 0x00000004 88 #define AU_FMODIFY 0x00000008 89 #define AU_FCREATE 0x00000010 90 #define AU_FDELETE 0x00000020 91 #define AU_CLOSE 0x00000040 92 #define AU_PROCESS 0x00000080 93 #define AU_NET 0x00000100 94 #define AU_IPC 0x00000200 95 #define AU_NONAT 0x00000400 96 #define AU_ADMIN 0x00000800 97 #define AU_LOGIN 0x00001000 98 #define AU_TFM 0x00002000 99 #define AU_APPL 0x00004000 100 #define AU_SETL 0x00008000 101 #define AU_IFLOAT 0x00010000 102 #define AU_PRIV 0x00020000 103 #define AU_MAC_RW 0x00040000 104 #define AU_XCONN 0x00080000 105 #define AU_XCREATE 0x00100000 106 #define AU_XDELETE 0x00200000 107 #define AU_XIFLOAT 0x00400000 108 #define AU_XPRIVS 0x00800000 109 #define AU_XPRIVF 0x01000000 110 #define AU_XMOVE 0x02000000 111 #define AU_XDACF 0x04000000 112 #define AU_XMACF 0x08000000 113 #define AU_XSECATTR 0x10000000 114 #define AU_IOCTL 0x20000000 115 #define AU_EXEC 0x40000000 116 #define AU_OTHER 0x80000000 117 #define AU_ALL 0xffffffff 118 119 /* 120 * IPC types. 121 */ 122 #define AT_IPC_MSG ((u_char)1) /* Message IPC id. */ 123 #define AT_IPC_SEM ((u_char)2) /* Semaphore IPC id. */ 124 #define AT_IPC_SHM ((u_char)3) /* Shared mem IPC id. */ 125 126 /* 127 * Audit conditions. 128 */ 129 #define AUC_UNSET 0 130 #define AUC_AUDITING 1 131 #define AUC_NOAUDIT 2 132 #define AUC_DISABLED -1 133 134 /* 135 * auditon(2) commands. 136 */ 137 #define A_GETPOLICY 2 138 #define A_SETPOLICY 3 139 #define A_GETKMASK 4 140 #define A_SETKMASK 5 141 #define A_GETQCTRL 6 142 #define A_SETQCTRL 7 143 #define A_GETCWD 8 144 #define A_GETCAR 9 145 #define A_GETSTAT 12 146 #define A_SETSTAT 13 147 #define A_SETUMASK 14 148 #define A_SETSMASK 15 149 #define A_GETCOND 20 150 #define A_SETCOND 21 151 #define A_GETCLASS 22 152 #define A_SETCLASS 23 153 #define A_GETPINFO 24 154 #define A_SETPMASK 25 155 #define A_SETFSIZE 26 156 #define A_GETFSIZE 27 157 #define A_GETPINFO_ADDR 28 158 #define A_GETKAUDIT 29 159 #define A_SETKAUDIT 30 160 #define A_SENDTRIGGER 31 161 162 /* 163 * Audit policy controls. 164 */ 165 #define AUDIT_CNT 0x0001 166 #define AUDIT_AHLT 0x0002 167 #define AUDIT_ARGV 0x0004 168 #define AUDIT_ARGE 0x0008 169 #define AUDIT_SEQ 0x0010 170 #define AUDIT_WINDATA 0x0020 171 #define AUDIT_USER 0x0040 172 #define AUDIT_GROUP 0x0080 173 #define AUDIT_TRAIL 0x0100 174 #define AUDIT_PATH 0x0200 175 #define AUDIT_SCNT 0x0400 176 #define AUDIT_PUBLIC 0x0800 177 #define AUDIT_ZONENAME 0x1000 178 #define AUDIT_PERZONE 0x2000 179 180 /* 181 * Default audit queue control parameters. 182 */ 183 #define AQ_HIWATER 100 184 #define AQ_MAXHIGH 10000 185 #define AQ_LOWATER 10 186 #define AQ_BUFSZ MAXAUDITDATA 187 #define AQ_MAXBUFSZ 1048576 188 189 /* 190 * Default minimum percentage free space on file system. 191 */ 192 #define AU_FS_MINFREE 20 193 194 /* 195 * Type definitions used indicating the length of variable length addresses 196 * in tokens containing addresses, such as header fields. 197 */ 198 #define AU_IPv4 4 199 #define AU_IPv6 16 200 201 __BEGIN_DECLS 202 203 typedef uid_t au_id_t; 204 typedef pid_t au_asid_t; 205 typedef u_int16_t au_event_t; 206 typedef u_int16_t au_emod_t; 207 typedef u_int32_t au_class_t; 208 209 struct au_tid { 210 dev_t port; 211 u_int32_t machine; 212 }; 213 typedef struct au_tid au_tid_t; 214 215 struct au_tid_addr { 216 dev_t at_port; 217 u_int32_t at_type; 218 u_int32_t at_addr[4]; 219 }; 220 typedef struct au_tid_addr au_tid_addr_t; 221 222 struct au_mask { 223 unsigned int am_success; /* Success bits. */ 224 unsigned int am_failure; /* Failure bits. */ 225 }; 226 typedef struct au_mask au_mask_t; 227 228 struct auditinfo { 229 au_id_t ai_auid; /* Audit user ID. */ 230 au_mask_t ai_mask; /* Audit masks. */ 231 au_tid_t ai_termid; /* Terminal ID. */ 232 au_asid_t ai_asid; /* Audit session ID. */ 233 }; 234 typedef struct auditinfo auditinfo_t; 235 236 struct auditinfo_addr { 237 au_id_t ai_auid; /* Audit user ID. */ 238 au_mask_t ai_mask; /* Audit masks. */ 239 au_tid_addr_t ai_termid; /* Terminal ID. */ 240 au_asid_t ai_asid; /* Audit session ID. */ 241 }; 242 typedef struct auditinfo_addr auditinfo_addr_t; 243 244 struct auditpinfo { 245 pid_t ap_pid; /* ID of target process. */ 246 au_id_t ap_auid; /* Audit user ID. */ 247 au_mask_t ap_mask; /* Audit masks. */ 248 au_tid_t ap_termid; /* Terminal ID. */ 249 au_asid_t ap_asid; /* Audit session ID. */ 250 }; 251 typedef struct auditpinfo auditpinfo_t; 252 253 struct auditpinfo_addr { 254 pid_t ap_pid; /* ID of target process. */ 255 au_id_t ap_auid; /* Audit user ID. */ 256 au_mask_t ap_mask; /* Audit masks. */ 257 au_tid_addr_t ap_termid; /* Terminal ID. */ 258 au_asid_t ap_asid; /* Audit session ID. */ 259 }; 260 typedef struct auditpinfo_addr auditpinfo_addr_t; 261 262 /* 263 * Contents of token_t are opaque outside of libbsm. 264 */ 265 typedef struct au_token token_t; 266 267 /* 268 * Kernel audit queue control parameters. 269 */ 270 struct au_qctrl { 271 size_t aq_hiwater; 272 size_t aq_lowater; 273 size_t aq_bufsz; 274 clock_t aq_delay; 275 int aq_minfree; /* Minimum filesystem percent free space. */ 276 }; 277 typedef struct au_qctrl au_qctrl_t; 278 279 /* 280 * Structure for the audit statistics. 281 */ 282 struct audit_stat { 283 unsigned int as_version; 284 unsigned int as_numevent; 285 int as_generated; 286 int as_nonattrib; 287 int as_kernel; 288 int as_audit; 289 int as_auditctl; 290 int as_enqueue; 291 int as_written; 292 int as_wblocked; 293 int as_rblocked; 294 int as_dropped; 295 int as_totalsize; 296 unsigned int as_memused; 297 }; 298 typedef struct audit_stat au_stat_t; 299 300 /* 301 * Structure for the audit file statistics. 302 */ 303 struct audit_fstat { 304 u_quad_t af_filesz; 305 u_quad_t af_currsz; 306 }; 307 typedef struct audit_fstat au_fstat_t; 308 309 /* 310 * Audit to event class mapping. 311 */ 312 struct au_evclass_map { 313 au_event_t ec_number; 314 au_class_t ec_class; 315 }; 316 typedef struct au_evclass_map au_evclass_map_t; 317 318 /* 319 * Audit system calls. 320 */ 321 #if !defined(_KERNEL) && !defined(KERNEL) 322 int audit(const void *, int); 323 int auditon(int, void *, int); 324 int auditctl(const char *); 325 int getauid(au_id_t *); 326 int setauid(const au_id_t *); 327 int getaudit(struct auditinfo *); 328 int setaudit(const struct auditinfo *); 329 int getaudit_addr(struct auditinfo_addr *, int); 330 int setaudit_addr(const struct auditinfo_addr *, int); 331 #endif /* defined(_KERNEL) || defined(KERNEL) */ 332 333 __END_DECLS 334 335 #endif /* !_BSM_AUDIT_H */ 336