sys/security/audit/audit_bsm.c

   1 /*
   2  * Copyright (c) 1999-2005 Apple Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1.  Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  * 2.  Redistributions in binary form must reproduce the above copyright
  11  *     notice, this list of conditions and the following disclaimer in the
  12  *     documentation and/or other materials provided with the distribution.
  13  * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
  14  *     its contributors may be used to endorse or promote products derived
  15  *     from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
  21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  25  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  26  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27  * POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <sys/cdefs.h>
  31 __FBSDID("$FreeBSD$");
  32
  33 #include <sys/param.h>
  34 #include <sys/vnode.h>
  35 #include <sys/ipc.h>
  36 #include <sys/lock.h>
  37 #include <sys/malloc.h>
  38 #include <sys/mutex.h>
  39 #include <sys/socket.h>
  40 #include <sys/extattr.h>
  41 #include <sys/fcntl.h>
  42 #include <sys/user.h>
  43 #include <sys/systm.h>
  44
  45 #include <bsm/audit.h>
  46 #include <bsm/audit_internal.h>
  47 #include <bsm/audit_record.h>
  48 #include <bsm/audit_kevents.h>
  49
  50 #include <security/audit/audit.h>
  51 #include <security/audit/audit_private.h>
  52
  53 #include <netinet/in_systm.h>
  54 #include <netinet/in.h>
  55 #include <netinet/ip.h>
  56
  57 MALLOC_DEFINE(M_AUDITBSM, "audit_bsm", "Audit BSM data");
  58
  59 static void     audit_sys_auditon(struct audit_record *ar,
  60                     struct au_record *rec);
  61
  62 /*
  63  * Initialize the BSM auditing subsystem.
  64  */
  65 void
  66 kau_init(void)
  67 {
  68
  69         au_evclassmap_init();
  70 }
  71
  72 /*
  73  * This call reserves memory for the audit record.  Memory must be guaranteed
  74  * before any auditable event can be generated.  The au_record structure
  75  * maintains a reference to the memory allocated above and also the list of
  76  * tokens associated with this record.
  77  */
  78 static struct au_record *
  79 kau_open(void)
  80 {
  81         struct au_record *rec;
  82
  83         rec = malloc(sizeof(*rec), M_AUDITBSM, M_WAITOK);
  84         rec->data = NULL;
  85         TAILQ_INIT(&rec->token_q);
  86         rec->len = 0;
  87         rec->used = 1;
  88
  89         return (rec);
  90 }
  91
  92 /*
  93  * Store the token with the record descriptor.
  94  */
  95 static void
  96 kau_write(struct au_record *rec, struct au_token *tok)
  97 {
  98
  99         KASSERT(tok != NULL, ("kau_write: tok == NULL"));
 100
 101         TAILQ_INSERT_TAIL(&rec->token_q, tok, tokens);
 102         rec->len += tok->len;
 103 }
 104
 105 /*
 106  * Close out the audit record by adding the header token, identifying any
 107  * missing tokens.  Write out the tokens to the record memory.
 108  */
 109 static void
 110 kau_close(struct au_record *rec, struct timespec *ctime, short event)
 111 {
 112         u_char *dptr;
 113         size_t tot_rec_size;
 114         token_t *cur, *hdr, *trail;
 115         struct timeval tm;
 116
 117         tot_rec_size = rec->len + AUDIT_HEADER_SIZE + AUDIT_TRAILER_SIZE;
 118         rec->data = malloc(tot_rec_size, M_AUDITBSM, M_WAITOK | M_ZERO);
 119
 120         tm.tv_usec = ctime->tv_nsec / 1000;
 121         tm.tv_sec = ctime->tv_sec;
 122         hdr = au_to_header32_tm(tot_rec_size, event, 0, tm);
 123         TAILQ_INSERT_HEAD(&rec->token_q, hdr, tokens);
 124
 125         trail = au_to_trailer(tot_rec_size);
 126         TAILQ_INSERT_TAIL(&rec->token_q, trail, tokens);
 127
 128         rec->len = tot_rec_size;
 129         dptr = rec->data;
 130         TAILQ_FOREACH(cur, &rec->token_q, tokens) {
 131                 memcpy(dptr, cur->t_data, cur->len);
 132                 dptr += cur->len;
 133         }
 134 }
 135
 136 /*
 137  * Free a BSM audit record by releasing all the tokens and clearing the audit
 138  * record information.
 139  */
 140 void
 141 kau_free(struct au_record *rec)
 142 {
 143         struct au_token *tok;
 144
 145         /* Free the token list. */
 146         while ((tok = TAILQ_FIRST(&rec->token_q))) {
 147                 TAILQ_REMOVE(&rec->token_q, tok, tokens);
 148                 free(tok->t_data, M_AUDITBSM);
 149                 free(tok, M_AUDITBSM);
 150         }
 151
 152         rec->used = 0;
 153         rec->len = 0;
 154         free(rec->data, M_AUDITBSM);
 155         free(rec, M_AUDITBSM);
 156 }
 157
 158 /*
 159  * XXX: May want turn some (or all) of these macros into functions in order
 160  * to reduce the generated code size.
 161  *
 162  * XXXAUDIT: These macros assume that 'kar', 'ar', 'rec', and 'tok' in the
 163  * caller are OK with this.
 164  */
 165 #define UPATH1_TOKENS do {                                              \
 166         if (ARG_IS_VALID(kar, ARG_UPATH1)) {                            \
 167                 tok = au_to_path(ar->ar_arg_upath1);                    \
 168                 kau_write(rec, tok);                                    \
 169         }                                                               \
 170 } while (0)
 171
 172 #define UPATH2_TOKENS do {                                              \
 173         if (ARG_IS_VALID(kar, ARG_UPATH2)) {                            \
 174                 tok = au_to_path(ar->ar_arg_upath2);                    \
 175                 kau_write(rec, tok);                                    \
 176         }                                                               \
 177 } while (0)
 178
 179 #define VNODE1_TOKENS do {                                              \
 180         if (ARG_IS_VALID(kar, ARG_VNODE1)) {                            \
 181                 tok = au_to_attr32(&ar->ar_arg_vnode1);                 \
 182                 kau_write(rec, tok);                                    \
 183         }                                                               \
 184 } while (0)
 185
 186 #define UPATH1_VNODE1_TOKENS do {                                       \
 187         if (ARG_IS_VALID(kar, ARG_UPATH1)) {                            \
 188                 UPATH1_TOKENS;                                          \
 189         }                                                               \
 190         if (ARG_IS_VALID(kar, ARG_VNODE1)) {                            \
 191                 tok = au_to_attr32(&ar->ar_arg_vnode1);                 \
 192                 kau_write(rec, tok);                                    \
 193         }                                                               \
 194 } while (0)
 195
 196 #define VNODE2_TOKENS do {                                              \
 197         if (ARG_IS_VALID(kar, ARG_VNODE2)) {                            \
 198                 tok = au_to_attr32(&ar->ar_arg_vnode2);                 \
 199                 kau_write(rec, tok);                                    \
 200         }                                                               \
 201 } while (0)
 202
 203 #define FD_VNODE1_TOKENS do {                                           \
 204         if (ARG_IS_VALID(kar, ARG_VNODE1)) {                            \
 205                 if (ARG_IS_VALID(kar, ARG_FD)) {                        \
 206                         tok = au_to_arg32(1, "fd", ar->ar_arg_fd);      \
 207                         kau_write(rec, tok);                            \
 208                 }                                                       \
 209                 tok = au_to_attr32(&ar->ar_arg_vnode1);                 \
 210                 kau_write(rec, tok);                                    \
 211         } else {                                                        \
 212                 if (ARG_IS_VALID(kar, ARG_FD)) {                        \
 213                         tok = au_to_arg32(1, "non-file: fd",            \
 214                             ar->ar_arg_fd);                             \
 215                         kau_write(rec, tok);                            \
 216                 }                                                       \
 217         }                                                               \
 218 } while (0)
 219
 220 #define PROCESS_PID_TOKENS(argn) do {                                   \
 221         if ((ar->ar_arg_pid > 0) /* Reference a single process */       \
 222             && (ARG_IS_VALID(kar, ARG_PROCESS))) {                      \
 223                 tok = au_to_process32_ex(ar->ar_arg_auid,               \
 224                     ar->ar_arg_euid, ar->ar_arg_egid,                   \
 225                     ar->ar_arg_ruid, ar->ar_arg_rgid,                   \
 226                     ar->ar_arg_pid, ar->ar_arg_asid,                    \
 227                     &ar->ar_arg_termid_addr);                           \
 228                 kau_write(rec, tok);                                    \
 229         } else if (ARG_IS_VALID(kar, ARG_PID)) {                        \
 230                 tok = au_to_arg32(argn, "process", ar->ar_arg_pid);     \
 231                 kau_write(rec, tok);                                    \
 232         }                                                               \
 233 } while (0)
 234
 235 #define EXTATTR_TOKENS do {                                             \
 236         if (ARG_IS_VALID(kar, ARG_VALUE)) {                             \
 237                 switch (ar->ar_arg_value) {                             \
 238                 case EXTATTR_NAMESPACE_USER:                            \
 239                         tok = au_to_text(EXTATTR_NAMESPACE_USER_STRING);\
 240                         break;                                          \
 241                 case EXTATTR_NAMESPACE_SYSTEM:                          \
 242                         tok = au_to_text(EXTATTR_NAMESPACE_SYSTEM_STRING);\
 243                         break;                                          \
 244                 default:                                                \
 245                         tok = au_to_arg32(3, "attrnamespace",           \
 246                             ar->ar_arg_value);                          \
 247                         break;                                          \
 248                 }                                                       \
 249                 kau_write(rec, tok);                                    \
 250         }                                                               \
 251         /* attrname is in the text field */                             \
 252         if (ARG_IS_VALID(kar, ARG_TEXT)) {                              \
 253                 tok = au_to_text(ar->ar_arg_text);                      \
 254                 kau_write(rec, tok);                                    \
 255         }                                                               \
 256 } while (0)
 257
 258 /*
 259  * Implement auditing for the auditon() system call. The audit tokens that
 260  * are generated depend on the command that was sent into the auditon()
 261  * system call.
 262  */
 263 static void
 264 audit_sys_auditon(struct audit_record *ar, struct au_record *rec)
 265 {
 266         struct au_token *tok;
 267
 268         switch (ar->ar_arg_cmd) {
 269         case A_SETPOLICY:
 270                 if (sizeof(ar->ar_arg_auditon.au_flags) > 4)
 271                         tok = au_to_arg64(1, "policy",
 272                             ar->ar_arg_auditon.au_flags);
 273                 else
 274                         tok = au_to_arg32(1, "policy",
 275                             ar->ar_arg_auditon.au_flags);
 276                 kau_write(rec, tok);
 277                 break;
 278
 279         case A_SETKMASK:
 280                 tok = au_to_arg32(2, "setkmask:as_success",
 281                     ar->ar_arg_auditon.au_mask.am_success);
 282                 kau_write(rec, tok);
 283                 tok = au_to_arg32(2, "setkmask:as_failure",
 284                     ar->ar_arg_auditon.au_mask.am_failure);
 285                 kau_write(rec, tok);
 286                 break;
 287
 288         case A_SETQCTRL:
 289                 tok = au_to_arg32(3, "setqctrl:aq_hiwater",
 290                     ar->ar_arg_auditon.au_qctrl.aq_hiwater);
 291                 kau_write(rec, tok);
 292                 tok = au_to_arg32(3, "setqctrl:aq_lowater",
 293                     ar->ar_arg_auditon.au_qctrl.aq_lowater);
 294                 kau_write(rec, tok);
 295                 tok = au_to_arg32(3, "setqctrl:aq_bufsz",
 296                     ar->ar_arg_auditon.au_qctrl.aq_bufsz);
 297                 kau_write(rec, tok);
 298                 tok = au_to_arg32(3, "setqctrl:aq_delay",
 299                     ar->ar_arg_auditon.au_qctrl.aq_delay);
 300                 kau_write(rec, tok);
 301                 tok = au_to_arg32(3, "setqctrl:aq_minfree",
 302                     ar->ar_arg_auditon.au_qctrl.aq_minfree);
 303                 kau_write(rec, tok);
 304                 break;
 305
 306         case A_SETUMASK:
 307                 tok = au_to_arg32(3, "setumask:as_success",
 308                     ar->ar_arg_auditon.au_auinfo.ai_mask.am_success);
 309                 kau_write(rec, tok);
 310                 tok = au_to_arg32(3, "setumask:as_failure",
 311                     ar->ar_arg_auditon.au_auinfo.ai_mask.am_failure);
 312                 kau_write(rec, tok);
 313                 break;
 314
 315         case A_SETSMASK:
 316                 tok = au_to_arg32(3, "setsmask:as_success",
 317                     ar->ar_arg_auditon.au_auinfo.ai_mask.am_success);
 318                 kau_write(rec, tok);
 319                 tok = au_to_arg32(3, "setsmask:as_failure",
 320                     ar->ar_arg_auditon.au_auinfo.ai_mask.am_failure);
 321                 kau_write(rec, tok);
 322                 break;
 323
 324         case A_SETCOND:
 325                 if (sizeof(ar->ar_arg_auditon.au_cond) > 4)
 326                         tok = au_to_arg64(3, "setcond",
 327                             ar->ar_arg_auditon.au_cond);
 328                 else
 329                         tok = au_to_arg32(3, "setcond",
 330                             ar->ar_arg_auditon.au_cond);
 331                 kau_write(rec, tok);
 332                 break;
 333
 334         case A_SETCLASS:
 335                 tok = au_to_arg32(2, "setclass:ec_event",
 336                     ar->ar_arg_auditon.au_evclass.ec_number);
 337                 kau_write(rec, tok);
 338                 tok = au_to_arg32(3, "setclass:ec_class",
 339                     ar->ar_arg_auditon.au_evclass.ec_class);
 340                 kau_write(rec, tok);
 341                 break;
 342
 343         case A_SETPMASK:
 344                 tok = au_to_arg32(2, "setpmask:as_success",
 345                     ar->ar_arg_auditon.au_aupinfo.ap_mask.am_success);
 346                 kau_write(rec, tok);
 347                 tok = au_to_arg32(2, "setpmask:as_failure",
 348                     ar->ar_arg_auditon.au_aupinfo.ap_mask.am_failure);
 349                 kau_write(rec, tok);
 350                 break;
 351
 352         case A_SETFSIZE:
 353                 tok = au_to_arg32(2, "setfsize:filesize",
 354                     ar->ar_arg_auditon.au_fstat.af_filesz);
 355                 kau_write(rec, tok);
 356                 break;
 357
 358         default:
 359                 break;
 360         }
 361 }
 362
 363 /*
 364  * Convert an internal kernel audit record to a BSM record and return a
 365  * success/failure indicator. The BSM record is passed as an out parameter to
 366  * this function.
 367  *
 368  * Return conditions:
 369  *   BSM_SUCCESS: The BSM record is valid
 370  *   BSM_FAILURE: Failure; the BSM record is NULL.
 371  *   BSM_NOAUDIT: The event is not auditable for BSM; the BSM record is NULL.
 372  */
 373 int
 374 kaudit_to_bsm(struct kaudit_record *kar, struct au_record **pau)
 375 {
 376         struct au_token *tok, *subj_tok;
 377         struct au_record *rec;
 378         au_tid_t tid;
 379         struct audit_record *ar;
 380         int ctr;
 381
 382         KASSERT(kar != NULL, ("kaudit_to_bsm: kar == NULL"));
 383
 384         *pau = NULL;
 385         ar = &kar->k_ar;
 386         rec = kau_open();
 387
 388         /*
 389          * Create the subject token.
 390          */
 391         switch (ar->ar_subj_term_addr.at_type) {
 392         case AU_IPv4:
 393                 tid.port = ar->ar_subj_term_addr.at_port;
 394                 tid.machine = ar->ar_subj_term_addr.at_addr[0];
 395                 subj_tok = au_to_subject32(ar->ar_subj_auid,  /* audit ID */
 396                     ar->ar_subj_cred.cr_uid, /* eff uid */
 397                     ar->ar_subj_egid,   /* eff group id */
 398                     ar->ar_subj_ruid,   /* real uid */
 399                     ar->ar_subj_rgid,   /* real group id */
 400                     ar->ar_subj_pid,    /* process id */
 401                     ar->ar_subj_asid,   /* session ID */
 402                     &tid);
 403                 break;
 404         case AU_IPv6:
 405                 subj_tok = au_to_subject32_ex(ar->ar_subj_auid,
 406                     ar->ar_subj_cred.cr_uid,
 407                     ar->ar_subj_egid,
 408                     ar->ar_subj_ruid,
 409                     ar->ar_subj_rgid,
 410                     ar->ar_subj_pid,
 411                     ar->ar_subj_asid,
 412                     &ar->ar_subj_term_addr);
 413                 break;
 414         default:
 415                 bzero(&tid, sizeof(tid));
 416                 subj_tok = au_to_subject32(ar->ar_subj_auid,
 417                     ar->ar_subj_cred.cr_uid,
 418                     ar->ar_subj_egid,
 419                     ar->ar_subj_ruid,
 420                     ar->ar_subj_rgid,
 421                     ar->ar_subj_pid,
 422                     ar->ar_subj_asid,
 423                     &tid);
 424         }
 425
 426         /*
 427          * The logic inside each case fills in the tokens required for the
 428          * event, except for the header, trailer, and return tokens.  The
 429          * header and trailer tokens are added by the kau_close() function.
 430          * The return token is added outside of the switch statement.
 431          */
 432         switch(ar->ar_event) {
 433         case AUE_ACCEPT:
 434         case AUE_BIND:
 435         case AUE_LISTEN:
 436         case AUE_CONNECT:
 437         case AUE_RECV:
 438         case AUE_RECVFROM:
 439         case AUE_RECVMSG:
 440         case AUE_SEND:
 441         case AUE_SENDFILE:
 442         case AUE_SENDMSG:
 443         case AUE_SENDTO:
 444                 /*
 445                  * Socket-related events.
 446                  */
 447                 if (ARG_IS_VALID(kar, ARG_FD)) {
 448                         tok = au_to_arg32(1, "fd", ar->ar_arg_fd);
 449                         kau_write(rec, tok);
 450                 }
 451                 if (ARG_IS_VALID(kar, ARG_SADDRINET)) {
 452                         tok = au_to_sock_inet((struct sockaddr_in *)
 453                             &ar->ar_arg_sockaddr);
 454                         kau_write(rec, tok);
 455                 }
 456                 if (ARG_IS_VALID(kar, ARG_SADDRUNIX)) {
 457                         tok = au_to_sock_unix((struct sockaddr_un *)
 458                             &ar->ar_arg_sockaddr);
 459                         kau_write(rec, tok);
 460                         UPATH1_TOKENS;
 461                 }
 462                 /* XXX Need to handle ARG_SADDRINET6 */
 463                 break;
 464
 465         case AUE_SOCKET:
 466         case AUE_SOCKETPAIR:
 467                 if (ARG_IS_VALID(kar, ARG_SOCKINFO)) {
 468                         tok = au_to_arg32(1,"domain",
 469                             ar->ar_arg_sockinfo.so_domain);
 470                         kau_write(rec, tok);
 471                         tok = au_to_arg32(2,"type",
 472                             ar->ar_arg_sockinfo.so_type);
 473                         kau_write(rec, tok);
 474                         tok = au_to_arg32(3,"protocol",
 475                             ar->ar_arg_sockinfo.so_protocol);
 476                         kau_write(rec, tok);
 477                 }
 478                 break;
 479
 480         case AUE_SETSOCKOPT:
 481         case AUE_SHUTDOWN:
 482                 if (ARG_IS_VALID(kar, ARG_FD)) {
 483                         tok = au_to_arg32(1, "fd", ar->ar_arg_fd);
 484                         kau_write(rec, tok);
 485                 }
 486                 break;
 487
 488         case AUE_ACCT:
 489                 if (ARG_IS_VALID(kar, ARG_UPATH1)) {
 490                         UPATH1_VNODE1_TOKENS;
 491                 } else {
 492                         tok = au_to_arg32(1, "accounting off", 0);
 493                         kau_write(rec, tok);
 494                 }
 495                 break;
 496
 497         case AUE_SETAUID:
 498                 if (ARG_IS_VALID(kar, ARG_AUID)) {
 499                         tok = au_to_arg32(2, "setauid", ar->ar_arg_auid);
 500                         kau_write(rec, tok);
 501                 }
 502                 break;
 503
 504         case AUE_SETAUDIT:
 505                 if (ARG_IS_VALID(kar, ARG_AUID) &&
 506                     ARG_IS_VALID(kar, ARG_ASID) &&
 507                     ARG_IS_VALID(kar, ARG_AMASK) &&
 508                     ARG_IS_VALID(kar, ARG_TERMID)) {
 509                         tok = au_to_arg32(1, "setaudit:auid",
 510                             ar->ar_arg_auid);
 511                         kau_write(rec, tok);
 512                         tok = au_to_arg32(1, "setaudit:port",
 513                             ar->ar_arg_termid.port);
 514                         kau_write(rec, tok);
 515                         tok = au_to_arg32(1, "setaudit:machine",
 516                             ar->ar_arg_termid.machine);
 517                         kau_write(rec, tok);
 518                         tok = au_to_arg32(1, "setaudit:as_success",
 519                             ar->ar_arg_amask.am_success);
 520                         kau_write(rec, tok);
 521                         tok = au_to_arg32(1, "setaudit:as_failure",
 522                             ar->ar_arg_amask.am_failure);
 523                         kau_write(rec, tok);
 524                         tok = au_to_arg32(1, "setaudit:asid",
 525                             ar->ar_arg_asid);
 526                         kau_write(rec, tok);
 527                 }
 528                 break;
 529
 530         case AUE_SETAUDIT_ADDR:
 531                 if (ARG_IS_VALID(kar, ARG_AUID) &&
 532                     ARG_IS_VALID(kar, ARG_ASID) &&
 533                     ARG_IS_VALID(kar, ARG_AMASK) &&
 534                     ARG_IS_VALID(kar, ARG_TERMID_ADDR)) {
 535                         tok = au_to_arg32(1, "setaudit_addr:auid",
 536                             ar->ar_arg_auid);
 537                         kau_write(rec, tok);
 538                         tok = au_to_arg32(1, "setaudit_addr:as_success",
 539                             ar->ar_arg_amask.am_success);
 540                         kau_write(rec, tok);
 541                         tok = au_to_arg32(1, "setaudit_addr:as_failure",
 542                             ar->ar_arg_amask.am_failure);
 543                         kau_write(rec, tok);
 544                         tok = au_to_arg32(1, "setaudit_addr:asid",
 545                             ar->ar_arg_asid);
 546                         kau_write(rec, tok);
 547                         tok = au_to_arg32(1, "setaudit_addr:type",
 548                             ar->ar_arg_termid_addr.at_type);
 549                         kau_write(rec, tok);
 550                         tok = au_to_arg32(1, "setaudit_addr:port",
 551                             ar->ar_arg_termid_addr.at_port);
 552                         kau_write(rec, tok);
 553                         if (ar->ar_arg_termid_addr.at_type == AU_IPv6)
 554                                 tok = au_to_in_addr_ex((struct in6_addr *)
 555                                     &ar->ar_arg_termid_addr.at_addr[0]);
 556                         if (ar->ar_arg_termid_addr.at_type == AU_IPv4)
 557                                 tok = au_to_in_addr((struct in_addr *)
 558                                     &ar->ar_arg_termid_addr.at_addr[0]);
 559                         kau_write(rec, tok);
 560                 }
 561                 break;
 562
 563         case AUE_AUDITON:
 564                 /*
 565                  * For AUDITON commands without own event, audit the cmd.
 566                  */
 567                 if (ARG_IS_VALID(kar, ARG_CMD)) {
 568                         tok = au_to_arg32(1, "cmd", ar->ar_arg_cmd);
 569                         kau_write(rec, tok);
 570                 }
 571                 /* FALLTHROUGH */
 572
 573         case AUE_AUDITON_GETCAR:
 574         case AUE_AUDITON_GETCLASS:
 575         case AUE_AUDITON_GETCOND:
 576         case AUE_AUDITON_GETCWD:
 577         case AUE_AUDITON_GETKMASK:
 578         case AUE_AUDITON_GETSTAT:
 579         case AUE_AUDITON_GPOLICY:
 580         case AUE_AUDITON_GQCTRL:
 581         case AUE_AUDITON_SETCLASS:
 582         case AUE_AUDITON_SETCOND:
 583         case AUE_AUDITON_SETKMASK:
 584         case AUE_AUDITON_SETSMASK:
 585         case AUE_AUDITON_SETSTAT:
 586         case AUE_AUDITON_SETUMASK:
 587         case AUE_AUDITON_SPOLICY:
 588         case AUE_AUDITON_SQCTRL:
 589                 if (ARG_IS_VALID(kar, ARG_AUDITON))
 590                         audit_sys_auditon(ar, rec);
 591                 break;
 592
 593         case AUE_AUDITCTL:
 594                 UPATH1_VNODE1_TOKENS;
 595                 break;
 596
 597         case AUE_EXIT:
 598                 if (ARG_IS_VALID(kar, ARG_EXIT)) {
 599                         tok = au_to_exit(ar->ar_arg_exitretval,
 600                             ar->ar_arg_exitstatus);
 601                         kau_write(rec, tok);
 602                 }
 603                 break;
 604
 605         case AUE_ADJTIME:
 606         case AUE_CLOCK_SETTIME:
 607         case AUE_AUDIT:
 608         case AUE_DUP2:
 609         case AUE_GETAUDIT:
 610         case AUE_GETAUDIT_ADDR:
 611         case AUE_GETAUID:
 612         case AUE_GETCWD:
 613         case AUE_GETFSSTAT:
 614         case AUE_GETRESUID:
 615         case AUE_GETRESGID:
 616         case AUE_KQUEUE:
 617         case AUE_LSEEK:
 618         case AUE_MODLOAD:
 619         case AUE_MODUNLOAD:
 620         case AUE_MSGSYS:
 621         case AUE_NFS_SVC:
 622         case AUE_NTP_ADJTIME:
 623         case AUE_PIPE:
 624         case AUE_PROFILE:
 625         case AUE_RTPRIO:
 626         case AUE_SEMSYS:
 627         case AUE_SHMSYS:
 628         case AUE_SETPGRP:
 629         case AUE_SETRLIMIT:
 630         case AUE_SETSID:
 631         case AUE_SETTIMEOFDAY:
 632         case AUE_SYSARCH:
 633
 634                 /*
 635                  * Header, subject, and return tokens added at end.
 636                  */
 637                 break;
 638
 639         case AUE_MKFIFO:
 640                 if (ARG_IS_VALID(kar, ARG_MODE)) {
 641                         tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
 642                         kau_write(rec, tok);
 643                 }
 644                 /* FALLTHROUGH */
 645
 646         case AUE_ACCESS:
 647         case AUE_CHDIR:
 648         case AUE_CHROOT:
 649         case AUE_EACCESS:
 650         case AUE_GETATTRLIST:
 651         case AUE_JAIL:
 652         case AUE_LUTIMES:
 653         case AUE_NFS_GETFH:
 654         case AUE_LSTAT:
 655         case AUE_PATHCONF:
 656         case AUE_READLINK:
 657         case AUE_REVOKE:
 658         case AUE_RMDIR:
 659         case AUE_SEARCHFS:
 660         case AUE_SETATTRLIST:
 661         case AUE_STAT:
 662         case AUE_STATFS:
 663         case AUE_SWAPON:
 664         case AUE_SWAPOFF:
 665         case AUE_TRUNCATE:
 666         case AUE_UNDELETE:
 667         case AUE_UNLINK:
 668         case AUE_UTIMES:
 669                 UPATH1_VNODE1_TOKENS;
 670                 break;
 671
 672         case AUE_FHSTATFS:
 673         case AUE_FHOPEN:
 674         case AUE_FHSTAT:
 675                 /* XXXRW: Need to audit vnode argument. */
 676                 break;
 677
 678         case AUE_CHFLAGS:
 679         case AUE_LCHFLAGS:
 680                 if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
 681                         tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
 682                         kau_write(rec, tok);
 683                 }
 684                 UPATH1_VNODE1_TOKENS;
 685                 break;
 686
 687         case AUE_CHMOD:
 688         case AUE_LCHMOD:
 689                 if (ARG_IS_VALID(kar, ARG_MODE)) {
 690                         tok = au_to_arg32(2, "new file mode",
 691                             ar->ar_arg_mode);
 692                         kau_write(rec, tok);
 693                 }
 694                 UPATH1_VNODE1_TOKENS;
 695                 break;
 696
 697         case AUE_CHOWN:
 698         case AUE_LCHOWN:
 699                 if (ARG_IS_VALID(kar, ARG_UID)) {
 700                         tok = au_to_arg32(2, "new file uid", ar->ar_arg_uid);
 701                         kau_write(rec, tok);
 702                 }
 703                 if (ARG_IS_VALID(kar, ARG_GID)) {
 704                         tok = au_to_arg32(3, "new file gid", ar->ar_arg_gid);
 705                         kau_write(rec, tok);
 706                 }
 707                 UPATH1_VNODE1_TOKENS;
 708                 break;
 709
 710         case AUE_EXCHANGEDATA:
 711                 UPATH1_VNODE1_TOKENS;
 712                 UPATH2_TOKENS;
 713                 break;
 714
 715         case AUE_CLOSE:
 716                 if (ARG_IS_VALID(kar, ARG_FD)) {
 717                         tok = au_to_arg32(2, "fd", ar->ar_arg_fd);
 718                         kau_write(rec, tok);
 719                 }
 720                 UPATH1_VNODE1_TOKENS;
 721                 break;
 722
 723         case AUE_CORE:
 724                 if (ARG_IS_VALID(kar, ARG_SIGNUM)) {
 725                         tok = au_to_arg32(0, "signal", ar->ar_arg_signum);
 726                         kau_write(rec, tok);
 727                 }
 728                 UPATH1_VNODE1_TOKENS;
 729                 break;
 730
 731         case AUE_EXTATTRCTL:
 732                 UPATH1_VNODE1_TOKENS;
 733                 if (ARG_IS_VALID(kar, ARG_CMD)) {
 734                         tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
 735                         kau_write(rec, tok);
 736                 }
 737                 /* extattrctl(2) filename parameter is in upath2/vnode2 */
 738                 UPATH2_TOKENS;
 739                 VNODE2_TOKENS;
 740                 EXTATTR_TOKENS;
 741                 break;
 742
 743         case AUE_EXTATTR_GET_FILE:
 744         case AUE_EXTATTR_SET_FILE:
 745         case AUE_EXTATTR_LIST_FILE:
 746         case AUE_EXTATTR_DELETE_FILE:
 747         case AUE_EXTATTR_GET_LINK:
 748         case AUE_EXTATTR_SET_LINK:
 749         case AUE_EXTATTR_LIST_LINK:
 750         case AUE_EXTATTR_DELETE_LINK:
 751                 UPATH1_VNODE1_TOKENS;
 752                 EXTATTR_TOKENS;
 753                 break;
 754
 755         case AUE_EXTATTR_GET_FD:
 756         case AUE_EXTATTR_SET_FD:
 757         case AUE_EXTATTR_LIST_FD:
 758         case AUE_EXTATTR_DELETE_FD:
 759                 if (ARG_IS_VALID(kar, ARG_FD)) {
 760                         tok = au_to_arg32(2, "fd", ar->ar_arg_fd);
 761                         kau_write(rec, tok);
 762                 }
 763                 EXTATTR_TOKENS;
 764                 break;
 765
 766         case AUE_EXECVE:
 767         case AUE_MAC_EXECVE:
 768                 if (ARG_IS_VALID(kar, ARG_ARGV)) {
 769                         tok = au_to_exec_args(ar->ar_arg_argv,
 770                             ar->ar_arg_argc);
 771                         kau_write(rec, tok);
 772                 }
 773                 if (ARG_IS_VALID(kar, ARG_ENVV)) {
 774                         tok = au_to_exec_env(ar->ar_arg_envv,
 775                             ar->ar_arg_envc);
 776                         kau_write(rec, tok);
 777                 }
 778                 UPATH1_VNODE1_TOKENS;
 779                 break;
 780
 781         case AUE_FCHMOD:
 782                 if (ARG_IS_VALID(kar, ARG_MODE)) {
 783                         tok = au_to_arg32(2, "new file mode",
 784                             ar->ar_arg_mode);
 785                         kau_write(rec, tok);
 786                 }
 787                 FD_VNODE1_TOKENS;
 788                 break;
 789
 790         /*
 791          * XXXRW: Some of these need to handle non-vnode cases as well.
 792          */
 793         case AUE_FCHDIR:
 794         case AUE_FPATHCONF:
 795         case AUE_FSTAT:
 796         case AUE_FSTATFS:
 797         case AUE_FSYNC:
 798         case AUE_FTRUNCATE:
 799         case AUE_FUTIMES:
 800         case AUE_GETDIRENTRIES:
 801         case AUE_GETDIRENTRIESATTR:
 802         case AUE_POLL:
 803         case AUE_READ:
 804         case AUE_READV:
 805         case AUE_WRITE:
 806         case AUE_WRITEV:
 807                 FD_VNODE1_TOKENS;
 808                 break;
 809
 810         case AUE_FCHOWN:
 811                 if (ARG_IS_VALID(kar, ARG_UID)) {
 812                         tok = au_to_arg32(2, "new file uid", ar->ar_arg_uid);
 813                         kau_write(rec, tok);
 814                 }
 815                 if (ARG_IS_VALID(kar, ARG_GID)) {
 816                         tok = au_to_arg32(3, "new file gid", ar->ar_arg_gid);
 817                         kau_write(rec, tok);
 818                 }
 819                 FD_VNODE1_TOKENS;
 820                 break;
 821
 822         case AUE_FCNTL:
 823                 if (ar->ar_arg_cmd == F_GETLK || ar->ar_arg_cmd == F_SETLK ||
 824                     ar->ar_arg_cmd == F_SETLKW) {
 825                         if (ARG_IS_VALID(kar, ARG_CMD)) {
 826                                 tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
 827                                 kau_write(rec, tok);
 828                         }
 829                         FD_VNODE1_TOKENS;
 830                 }
 831                 break;
 832
 833         case AUE_FCHFLAGS:
 834                 if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
 835                         tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
 836                         kau_write(rec, tok);
 837                 }
 838                 FD_VNODE1_TOKENS;
 839                 break;
 840
 841         case AUE_FLOCK:
 842                 if (ARG_IS_VALID(kar, ARG_CMD)) {
 843                         tok = au_to_arg32(2, "operation", ar->ar_arg_cmd);
 844                         kau_write(rec, tok);
 845                 }
 846                 FD_VNODE1_TOKENS;
 847                 break;
 848
 849         case AUE_RFORK:
 850                 if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
 851                         tok = au_to_arg32(1, "flags", ar->ar_arg_fflags);
 852                         kau_write(rec, tok);
 853                 }
 854                 /* FALLTHROUGH */
 855
 856         case AUE_FORK:
 857         case AUE_VFORK:
 858                 if (ARG_IS_VALID(kar, ARG_PID)) {
 859                         tok = au_to_arg32(0, "child PID", ar->ar_arg_pid);
 860                         kau_write(rec, tok);
 861                 }
 862                 break;
 863
 864         case AUE_IOCTL:
 865                 if (ARG_IS_VALID(kar, ARG_CMD)) {
 866                         tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
 867                         kau_write(rec, tok);
 868                 }
 869                 if (ARG_IS_VALID(kar, ARG_ADDR)) {
 870                         tok = au_to_arg32(1, "arg",
 871                             (u_int32_t)(uintptr_t)ar->ar_arg_addr);
 872                         kau_write(rec, tok);
 873                 }
 874                 if (ARG_IS_VALID(kar, ARG_VNODE1))
 875                         FD_VNODE1_TOKENS;
 876                 else {
 877                         if (ARG_IS_VALID(kar, ARG_SOCKINFO)) {
 878                                 tok = kau_to_socket(&ar->ar_arg_sockinfo);
 879                                 kau_write(rec, tok);
 880                         } else {
 881                                 if (ARG_IS_VALID(kar, ARG_FD)) {
 882                                         tok = au_to_arg32(1, "fd",
 883                                             ar->ar_arg_fd);
 884                                         kau_write(rec, tok);
 885                                 }
 886                         }
 887                 }
 888                 break;
 889
 890         case AUE_KILL:
 891         case AUE_KILLPG:
 892                 if (ARG_IS_VALID(kar, ARG_SIGNUM)) {
 893                         tok = au_to_arg32(2, "signal", ar->ar_arg_signum);
 894                         kau_write(rec, tok);
 895                 }
 896                 PROCESS_PID_TOKENS(1);
 897                 break;
 898
 899         case AUE_KTRACE:
 900                 if (ARG_IS_VALID(kar, ARG_CMD)) {
 901                         tok = au_to_arg32(2, "ops", ar->ar_arg_cmd);
 902                         kau_write(rec, tok);
 903                 }
 904                 if (ARG_IS_VALID(kar, ARG_VALUE)) {
 905                         tok = au_to_arg32(3, "trpoints", ar->ar_arg_value);
 906                         kau_write(rec, tok);
 907                 }
 908                 PROCESS_PID_TOKENS(4);
 909                 UPATH1_VNODE1_TOKENS;
 910                 break;
 911
 912         case AUE_LINK:
 913         case AUE_RENAME:
 914                 UPATH1_VNODE1_TOKENS;
 915                 UPATH2_TOKENS;
 916                 break;
 917
 918         case AUE_LOADSHFILE:
 919                 if (ARG_IS_VALID(kar, ARG_ADDR)) {
 920                         tok = au_to_arg32(4, "base addr",
 921                             (u_int32_t)(uintptr_t)ar->ar_arg_addr);
 922                         kau_write(rec, tok);
 923                 }
 924                 UPATH1_VNODE1_TOKENS;
 925                 break;
 926
 927         case AUE_MKDIR:
 928                 if (ARG_IS_VALID(kar, ARG_MODE)) {
 929                         tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
 930                         kau_write(rec, tok);
 931                 }
 932                 UPATH1_VNODE1_TOKENS;
 933                 break;
 934
 935         case AUE_MKNOD:
 936                 if (ARG_IS_VALID(kar, ARG_MODE)) {
 937                         tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
 938                         kau_write(rec, tok);
 939                 }
 940                 if (ARG_IS_VALID(kar, ARG_DEV)) {
 941                         tok = au_to_arg32(3, "dev", ar->ar_arg_dev);
 942                         kau_write(rec, tok);
 943                 }
 944                 UPATH1_VNODE1_TOKENS;
 945                 break;
 946
 947         case AUE_MMAP:
 948         case AUE_MUNMAP:
 949         case AUE_MPROTECT:
 950         case AUE_MLOCK:
 951         case AUE_MUNLOCK:
 952         case AUE_MINHERIT:
 953                 if (ARG_IS_VALID(kar, ARG_ADDR)) {
 954                         tok = au_to_arg32(1, "addr",
 955                             (u_int32_t)(uintptr_t)ar->ar_arg_addr);
 956                         kau_write(rec, tok);
 957                 }
 958                 if (ARG_IS_VALID(kar, ARG_LEN)) {
 959                         tok = au_to_arg32(2, "len", ar->ar_arg_len);
 960                         kau_write(rec, tok);
 961                 }
 962                 if (ar->ar_event == AUE_MMAP)
 963                         FD_VNODE1_TOKENS;
 964                 if (ar->ar_event == AUE_MPROTECT) {
 965                         if (ARG_IS_VALID(kar, ARG_VALUE)) {
 966                                 tok = au_to_arg32(3, "protection",
 967                                     ar->ar_arg_value);
 968                                 kau_write(rec, tok);
 969                         }
 970                 }
 971                 if (ar->ar_event == AUE_MINHERIT) {
 972                         if (ARG_IS_VALID(kar, ARG_VALUE)) {
 973                                 tok = au_to_arg32(3, "inherit",
 974                                     ar->ar_arg_value);
 975                                 kau_write(rec, tok);
 976                         }
 977                 }
 978                 break;
 979
 980         case AUE_MOUNT:
 981         case AUE_NMOUNT:
 982                 /* XXX Need to handle NFS mounts */
 983                 if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
 984                         tok = au_to_arg32(3, "flags", ar->ar_arg_fflags);
 985                         kau_write(rec, tok);
 986                 }
 987                 if (ARG_IS_VALID(kar, ARG_TEXT)) {
 988                         tok = au_to_text(ar->ar_arg_text);
 989                         kau_write(rec, tok);
 990                 }
 991                 /* FALLTHROUGH */
 992
 993         case AUE_UMOUNT:
 994                 UPATH1_VNODE1_TOKENS;
 995                 break;
 996
 997         case AUE_MSGCTL:
 998                 ar->ar_event = audit_msgctl_to_event(ar->ar_arg_svipc_cmd);
 999                 /* Fall through */
1000
1001         case AUE_MSGRCV:
1002         case AUE_MSGSND:
1003                 tok = au_to_arg32(1, "msg ID", ar->ar_arg_svipc_id);
1004                 kau_write(rec, tok);
1005                 if (ar->ar_errno != EINVAL) {
1006                         tok = au_to_ipc(AT_IPC_MSG, ar->ar_arg_svipc_id);
1007                         kau_write(rec, tok);
1008                 }
1009                 break;
1010
1011         case AUE_MSGGET:
1012                 if (ar->ar_errno == 0) {
1013                         if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1014                                 tok = au_to_ipc(AT_IPC_MSG,
1015                                     ar->ar_arg_svipc_id);
1016                                 kau_write(rec, tok);
1017                         }
1018                 }
1019                 break;
1020
1021         case AUE_RESETSHFILE:
1022                 if (ARG_IS_VALID(kar, ARG_ADDR)) {
1023                         tok = au_to_arg32(1, "base addr",
1024                             (u_int32_t)(uintptr_t)ar->ar_arg_addr);
1025                         kau_write(rec, tok);
1026                 }
1027                 break;
1028
1029         case AUE_OPEN_RC:
1030         case AUE_OPEN_RTC:
1031         case AUE_OPEN_RWC:
1032         case AUE_OPEN_RWTC:
1033         case AUE_OPEN_WC:
1034         case AUE_OPEN_WTC:
1035         case AUE_CREAT:
1036                 if (ARG_IS_VALID(kar, ARG_MODE)) {
1037                         tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1038                         kau_write(rec, tok);
1039                 }
1040                 /* FALLTHROUGH */
1041
1042         case AUE_OPEN_R:
1043         case AUE_OPEN_RT:
1044         case AUE_OPEN_RW:
1045         case AUE_OPEN_RWT:
1046         case AUE_OPEN_W:
1047         case AUE_OPEN_WT:
1048                 if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
1049                         tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1050                         kau_write(rec, tok);
1051                 }
1052                 UPATH1_VNODE1_TOKENS;
1053                 break;
1054
1055         case AUE_PTRACE:
1056                 if (ARG_IS_VALID(kar, ARG_CMD)) {
1057                         tok = au_to_arg32(1, "request", ar->ar_arg_cmd);
1058                         kau_write(rec, tok);
1059                 }
1060                 if (ARG_IS_VALID(kar, ARG_ADDR)) {
1061                         tok = au_to_arg32(3, "addr",
1062                             (u_int32_t)(uintptr_t)ar->ar_arg_addr);
1063                         kau_write(rec, tok);
1064                 }
1065                 if (ARG_IS_VALID(kar, ARG_VALUE)) {
1066                         tok = au_to_arg32(4, "data", ar->ar_arg_value);
1067                         kau_write(rec, tok);
1068                 }
1069                 PROCESS_PID_TOKENS(2);
1070                 break;
1071
1072         case AUE_QUOTACTL:
1073                 if (ARG_IS_VALID(kar, ARG_CMD)) {
1074                         tok = au_to_arg32(2, "command", ar->ar_arg_cmd);
1075                         kau_write(rec, tok);
1076                 }
1077                 if (ARG_IS_VALID(kar, ARG_UID)) {
1078                         tok = au_to_arg32(3, "uid", ar->ar_arg_uid);
1079                         kau_write(rec, tok);
1080                 }
1081                 UPATH1_VNODE1_TOKENS;
1082                 break;
1083
1084         case AUE_REBOOT:
1085                 if (ARG_IS_VALID(kar, ARG_CMD)) {
1086                         tok = au_to_arg32(1, "howto", ar->ar_arg_cmd);
1087                         kau_write(rec, tok);
1088                 }
1089                 break;
1090
1091         case AUE_SEMCTL:
1092                 ar->ar_event = audit_semctl_to_event(ar->ar_arg_svipc_cmd);
1093                 /* Fall through */
1094
1095         case AUE_SEMOP:
1096                 if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1097                         tok = au_to_arg32(1, "sem ID", ar->ar_arg_svipc_id);
1098                         kau_write(rec, tok);
1099                         if (ar->ar_errno != EINVAL) {
1100                                 tok = au_to_ipc(AT_IPC_SEM,
1101                                     ar->ar_arg_svipc_id);
1102                                 kau_write(rec, tok);
1103                         }
1104                 }
1105                 break;
1106
1107         case AUE_SEMGET:
1108                 if (ar->ar_errno == 0) {
1109                         if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1110                                 tok = au_to_ipc(AT_IPC_SEM,
1111                                     ar->ar_arg_svipc_id);
1112                                 kau_write(rec, tok);
1113                         }
1114                 }
1115                 break;
1116
1117         case AUE_SETEGID:
1118                 if (ARG_IS_VALID(kar, ARG_EGID)) {
1119                         tok = au_to_arg32(1, "gid", ar->ar_arg_egid);
1120                         kau_write(rec, tok);
1121                 }
1122                 break;
1123
1124         case AUE_SETEUID:
1125                 if (ARG_IS_VALID(kar, ARG_EUID)) {
1126                         tok = au_to_arg32(1, "uid", ar->ar_arg_euid);
1127                         kau_write(rec, tok);
1128                 }
1129                 break;
1130
1131         case AUE_SETREGID:
1132                 if (ARG_IS_VALID(kar, ARG_RGID)) {
1133                         tok = au_to_arg32(1, "rgid", ar->ar_arg_rgid);
1134                         kau_write(rec, tok);
1135                 }
1136                 if (ARG_IS_VALID(kar, ARG_EGID)) {
1137                         tok = au_to_arg32(2, "egid", ar->ar_arg_egid);
1138                         kau_write(rec, tok);
1139                 }
1140                 break;
1141
1142         case AUE_SETREUID:
1143                 if (ARG_IS_VALID(kar, ARG_RUID)) {
1144                         tok = au_to_arg32(1, "ruid", ar->ar_arg_ruid);
1145                         kau_write(rec, tok);
1146                 }
1147                 if (ARG_IS_VALID(kar, ARG_EUID)) {
1148                         tok = au_to_arg32(2, "euid", ar->ar_arg_euid);
1149                         kau_write(rec, tok);
1150                 }
1151                 break;
1152
1153         case AUE_SETRESGID:
1154                 if (ARG_IS_VALID(kar, ARG_RGID)) {
1155                         tok = au_to_arg32(1, "rgid", ar->ar_arg_rgid);
1156                         kau_write(rec, tok);
1157                 }
1158                 if (ARG_IS_VALID(kar, ARG_EGID)) {
1159                         tok = au_to_arg32(2, "egid", ar->ar_arg_egid);
1160                         kau_write(rec, tok);
1161                 }
1162                 if (ARG_IS_VALID(kar, ARG_SGID)) {
1163                         tok = au_to_arg32(3, "sgid", ar->ar_arg_sgid);
1164                         kau_write(rec, tok);
1165                 }
1166                 break;
1167
1168         case AUE_SETRESUID:
1169                 if (ARG_IS_VALID(kar, ARG_RUID)) {
1170                         tok = au_to_arg32(1, "ruid", ar->ar_arg_ruid);
1171                         kau_write(rec, tok);
1172                 }
1173                 if (ARG_IS_VALID(kar, ARG_EUID)) {
1174                         tok = au_to_arg32(2, "euid", ar->ar_arg_euid);
1175                         kau_write(rec, tok);
1176                 }
1177                 if (ARG_IS_VALID(kar, ARG_SUID)) {
1178                         tok = au_to_arg32(3, "suid", ar->ar_arg_suid);
1179                         kau_write(rec, tok);
1180                 }
1181                 break;
1182
1183         case AUE_SETGID:
1184                 if (ARG_IS_VALID(kar, ARG_GID)) {
1185                         tok = au_to_arg32(1, "gid", ar->ar_arg_gid);
1186                         kau_write(rec, tok);
1187                 }
1188                 break;
1189
1190         case AUE_SETUID:
1191                 if (ARG_IS_VALID(kar, ARG_UID)) {
1192                         tok = au_to_arg32(1, "uid", ar->ar_arg_uid);
1193                         kau_write(rec, tok);
1194                 }
1195                 break;
1196
1197         case AUE_SETGROUPS:
1198                 if (ARG_IS_VALID(kar, ARG_GROUPSET)) {
1199                         for(ctr = 0; ctr < ar->ar_arg_groups.gidset_size; ctr++)
1200                         {
1201                                 tok = au_to_arg32(1, "setgroups",
1202                                     ar->ar_arg_groups.gidset[ctr]);
1203                                 kau_write(rec, tok);
1204                         }
1205                 }
1206                 break;
1207
1208         case AUE_SETLOGIN:
1209                 if (ARG_IS_VALID(kar, ARG_TEXT)) {
1210                         tok = au_to_text(ar->ar_arg_text);
1211                         kau_write(rec, tok);
1212                 }
1213                 break;
1214
1215         case AUE_SETPRIORITY:
1216                 if (ARG_IS_VALID(kar, ARG_CMD)) {
1217                         tok = au_to_arg32(1, "which", ar->ar_arg_cmd);
1218                         kau_write(rec, tok);
1219                 }
1220                 if (ARG_IS_VALID(kar, ARG_UID)) {
1221                         tok = au_to_arg32(2, "who", ar->ar_arg_uid);
1222                         kau_write(rec, tok);
1223                 }
1224                 if (ARG_IS_VALID(kar, ARG_VALUE)) {
1225                         tok = au_to_arg32(2, "priority", ar->ar_arg_value);
1226                         kau_write(rec, tok);
1227                 }
1228                 break;
1229
1230         case AUE_SETPRIVEXEC:
1231                 if (ARG_IS_VALID(kar, ARG_VALUE)) {
1232                         tok = au_to_arg32(1, "flag", ar->ar_arg_value);
1233                         kau_write(rec, tok);
1234                 }
1235                 break;
1236
1237         /* AUE_SHMAT, AUE_SHMCTL, AUE_SHMDT and AUE_SHMGET are SysV IPC */
1238         case AUE_SHMAT:
1239                 if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1240                         tok = au_to_arg32(1, "shmid", ar->ar_arg_svipc_id);
1241                         kau_write(rec, tok);
1242                         /* XXXAUDIT: Does having the ipc token make sense? */
1243                         tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1244                         kau_write(rec, tok);
1245                 }
1246                 if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1247                         tok = au_to_arg32(2, "shmaddr",
1248                             (int)(uintptr_t)ar->ar_arg_svipc_addr);
1249                         kau_write(rec, tok);
1250                 }
1251                 if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1252                         tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1253                         kau_write(rec, tok);
1254                 }
1255                 break;
1256
1257         case AUE_SHMCTL:
1258                 if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1259                         tok = au_to_arg32(1, "shmid", ar->ar_arg_svipc_id);
1260                         kau_write(rec, tok);
1261                         /* XXXAUDIT: Does having the ipc token make sense? */
1262                         tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1263                         kau_write(rec, tok);
1264                 }
1265                 switch (ar->ar_arg_svipc_cmd) {
1266                 case IPC_STAT:
1267                         ar->ar_event = AUE_SHMCTL_STAT;
1268                         break;
1269                 case IPC_RMID:
1270                         ar->ar_event = AUE_SHMCTL_RMID;
1271                         break;
1272                 case IPC_SET:
1273                         ar->ar_event = AUE_SHMCTL_SET;
1274                         if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1275                                 tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1276                                 kau_write(rec, tok);
1277                         }
1278                         break;
1279                 default:
1280                         break;  /* We will audit a bad command */
1281                 }
1282                 break;
1283
1284         case AUE_SHMDT:
1285                 if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1286                         tok = au_to_arg32(1, "shmaddr",
1287                             (int)(uintptr_t)ar->ar_arg_svipc_addr);
1288                         kau_write(rec, tok);
1289                 }
1290                 break;
1291
1292         case AUE_SHMGET:
1293                 /* This is unusual; the return value is in an argument token */
1294                 if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1295                         tok = au_to_arg32(0, "shmid", ar->ar_arg_svipc_id);
1296                         kau_write(rec, tok);
1297                         tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1298                         kau_write(rec, tok);
1299                 }
1300                 if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1301                         tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1302                         kau_write(rec, tok);
1303                 }
1304                 break;
1305
1306         /* AUE_SHMOPEN, AUE_SHMUNLINK, AUE_SEMOPEN, AUE_SEMCLOSE
1307          * and AUE_SEMUNLINK are Posix IPC */
1308         case AUE_SHMOPEN:
1309                 if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1310                         tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1311                         kau_write(rec, tok);
1312                 }
1313                 if (ARG_IS_VALID(kar, ARG_MODE)) {
1314                         tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1315                         kau_write(rec, tok);
1316                 }
1317                 /* FALLTHROUGH */
1318
1319         case AUE_SHMUNLINK:
1320                 if (ARG_IS_VALID(kar, ARG_TEXT)) {
1321                         tok = au_to_text(ar->ar_arg_text);
1322                         kau_write(rec, tok);
1323                 }
1324                 if (ARG_IS_VALID(kar, ARG_POSIX_IPC_PERM)) {
1325                         struct ipc_perm perm;
1326
1327                         perm.uid = ar->ar_arg_pipc_perm.pipc_uid;
1328                         perm.gid = ar->ar_arg_pipc_perm.pipc_gid;
1329                         perm.cuid = ar->ar_arg_pipc_perm.pipc_uid;
1330                         perm.cgid = ar->ar_arg_pipc_perm.pipc_gid;
1331                         perm.mode = ar->ar_arg_pipc_perm.pipc_mode;
1332                         perm.seq = 0;
1333                         perm.key = 0;
1334                         tok = au_to_ipc_perm(&perm);
1335                         kau_write(rec, tok);
1336                 }
1337                 break;
1338
1339         case AUE_SEMOPEN:
1340                 if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
1341                         tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1342                         kau_write(rec, tok);
1343                 }
1344                 if (ARG_IS_VALID(kar, ARG_MODE)) {
1345                         tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1346                         kau_write(rec, tok);
1347                 }
1348                 if (ARG_IS_VALID(kar, ARG_VALUE)) {
1349                         tok = au_to_arg32(4, "value", ar->ar_arg_value);
1350                         kau_write(rec, tok);
1351                 }
1352                 /* FALLTHROUGH */
1353
1354         case AUE_SEMUNLINK:
1355                 if (ARG_IS_VALID(kar, ARG_TEXT)) {
1356                         tok = au_to_text(ar->ar_arg_text);
1357                         kau_write(rec, tok);
1358                 }
1359                 if (ARG_IS_VALID(kar, ARG_POSIX_IPC_PERM)) {
1360                         struct ipc_perm perm;
1361
1362                         perm.uid = ar->ar_arg_pipc_perm.pipc_uid;
1363                         perm.gid = ar->ar_arg_pipc_perm.pipc_gid;
1364                         perm.cuid = ar->ar_arg_pipc_perm.pipc_uid;
1365                         perm.cgid = ar->ar_arg_pipc_perm.pipc_gid;
1366                         perm.mode = ar->ar_arg_pipc_perm.pipc_mode;
1367                         perm.seq = 0;
1368                         perm.key = 0;
1369                         tok = au_to_ipc_perm(&perm);
1370                         kau_write(rec, tok);
1371                 }
1372                 break;
1373
1374         case AUE_SEMCLOSE:
1375                 if (ARG_IS_VALID(kar, ARG_FD)) {
1376                         tok = au_to_arg32(1, "sem", ar->ar_arg_fd);
1377                         kau_write(rec, tok);
1378                 }
1379                 break;
1380
1381         case AUE_SYMLINK:
1382                 if (ARG_IS_VALID(kar, ARG_TEXT)) {
1383                         tok = au_to_text(ar->ar_arg_text);
1384                         kau_write(rec, tok);
1385                 }
1386                 UPATH1_VNODE1_TOKENS;
1387                 break;
1388
1389         case AUE_SYSCTL:
1390         case AUE_SYSCTL_NONADMIN:
1391                 if (ARG_IS_VALID(kar, ARG_CTLNAME | ARG_LEN)) {
1392                         for (ctr = 0; ctr < ar->ar_arg_len; ctr++) {
1393                                 tok = au_to_arg32(1, "name",
1394                                     ar->ar_arg_ctlname[ctr]);
1395                                 kau_write(rec, tok);
1396                         }
1397                 }
1398                 if (ARG_IS_VALID(kar, ARG_VALUE)) {
1399                         tok = au_to_arg32(5, "newval", ar->ar_arg_value);
1400                         kau_write(rec, tok);
1401                 }
1402                 if (ARG_IS_VALID(kar, ARG_TEXT)) {
1403                         tok = au_to_text(ar->ar_arg_text);
1404                         kau_write(rec, tok);
1405                 }
1406                 break;
1407
1408         case AUE_UMASK:
1409                 if (ARG_IS_VALID(kar, ARG_MASK)) {
1410                         tok = au_to_arg32(1, "new mask", ar->ar_arg_mask);
1411                         kau_write(rec, tok);
1412                 }
1413                 tok = au_to_arg32(0, "prev mask", ar->ar_retval);
1414                 kau_write(rec, tok);
1415                 break;
1416
1417         case AUE_WAIT4:
1418                 if (ARG_IS_VALID(kar, ARG_PID)) {
1419                         tok = au_to_arg32(0, "pid", ar->ar_arg_pid);
1420                         kau_write(rec, tok);
1421                 }
1422                 break;
1423
1424         case AUE_NULL:
1425         default:
1426                 printf("BSM conversion requested for unknown event %d\n",
1427                     ar->ar_event);
1428
1429                 /*
1430                  * Write the subject token so it is properly freed here.
1431                  */
1432                 kau_write(rec, subj_tok);
1433                 kau_free(rec);
1434                 return (BSM_NOAUDIT);
1435         }
1436
1437         kau_write(rec, subj_tok);
1438         tok = au_to_return32((char)ar->ar_errno, ar->ar_retval);
1439         kau_write(rec, tok);  /* Every record gets a return token */
1440
1441         kau_close(rec, &ar->ar_endtime, ar->ar_event);
1442
1443         *pau = rec;
1444         return (BSM_SUCCESS);
1445 }
1446
1447 /*
1448  * Verify that a record is a valid BSM record. This verification is simple
1449  * now, but may be expanded on sometime in the future.  Return 1 if the
1450  * record is good, 0 otherwise.
1451  */
1452 int
1453 bsm_rec_verify(void *rec)
1454 {
1455         char c = *(char *)rec;
1456
1457         /*
1458          * Check the token ID of the first token; it has to be a header
1459          * token.
1460          *
1461          * XXXAUDIT There needs to be a token structure to map a token.
1462          * XXXAUDIT 'Shouldn't be simply looking at the first char.
1463          */
1464         if ((c != AUT_HEADER32) && (c != AUT_HEADER32_EX) &&
1465             (c != AUT_HEADER64) && (c != AUT_HEADER64_EX))
1466                 return (0);
1467         return (1);
1468 }