xref: /freebsd/sys/security/audit/audit_bsm.c (revision a9148abd9da5db2f1c682fb17bed791845fc41c9)
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 		/* fall thru */
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 		/* fall through */
645 	case AUE_ACCESS:
646 	case AUE_CHDIR:
647 	case AUE_CHROOT:
648 	case AUE_EACCESS:
649 	case AUE_GETATTRLIST:
650 	case AUE_JAIL:
651 	case AUE_LUTIMES:
652 	case AUE_NFS_GETFH:
653 	case AUE_LSTAT:
654 	case AUE_PATHCONF:
655 	case AUE_READLINK:
656 	case AUE_REVOKE:
657 	case AUE_RMDIR:
658 	case AUE_SEARCHFS:
659 	case AUE_SETATTRLIST:
660 	case AUE_STAT:
661 	case AUE_STATFS:
662 	case AUE_SWAPON:
663 	case AUE_SWAPOFF:
664 	case AUE_TRUNCATE:
665 	case AUE_UNDELETE:
666 	case AUE_UNLINK:
667 	case AUE_UTIMES:
668 		UPATH1_VNODE1_TOKENS;
669 		break;
670 
671 	case AUE_FHSTATFS:
672 	case AUE_FHOPEN:
673 	case AUE_FHSTAT:
674 		/* XXXRW: Need to audit vnode argument. */
675 		break;
676 
677 	case AUE_CHFLAGS:
678 	case AUE_LCHFLAGS:
679 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
680 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
681 			kau_write(rec, tok);
682 		}
683 		UPATH1_VNODE1_TOKENS;
684 		break;
685 
686 	case AUE_CHMOD:
687 	case AUE_LCHMOD:
688 		if (ARG_IS_VALID(kar, ARG_MODE)) {
689 			tok = au_to_arg32(2, "new file mode",
690 			    ar->ar_arg_mode);
691 			kau_write(rec, tok);
692 		}
693 		UPATH1_VNODE1_TOKENS;
694 		break;
695 
696 	case AUE_CHOWN:
697 	case AUE_LCHOWN:
698 		if (ARG_IS_VALID(kar, ARG_UID)) {
699 			tok = au_to_arg32(2, "new file uid", ar->ar_arg_uid);
700 			kau_write(rec, tok);
701 		}
702 		if (ARG_IS_VALID(kar, ARG_GID)) {
703 			tok = au_to_arg32(3, "new file gid", ar->ar_arg_gid);
704 			kau_write(rec, tok);
705 		}
706 		UPATH1_VNODE1_TOKENS;
707 		break;
708 
709 	case AUE_EXCHANGEDATA:
710 		UPATH1_VNODE1_TOKENS;
711 		UPATH2_TOKENS;
712 		break;
713 
714 	case AUE_CLOSE:
715 		if (ARG_IS_VALID(kar, ARG_FD)) {
716 			tok = au_to_arg32(2, "fd", ar->ar_arg_fd);
717 			kau_write(rec, tok);
718 		}
719 		UPATH1_VNODE1_TOKENS;
720 		break;
721 
722 	case AUE_CORE:
723 		if (ARG_IS_VALID(kar, ARG_SIGNUM)) {
724 			tok = au_to_arg32(0, "signal", ar->ar_arg_signum);
725 			kau_write(rec, tok);
726 		}
727 		UPATH1_VNODE1_TOKENS;
728 		break;
729 
730 	case AUE_EXTATTRCTL:
731 		UPATH1_VNODE1_TOKENS;
732 		if (ARG_IS_VALID(kar, ARG_CMD)) {
733 			tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
734 			kau_write(rec, tok);
735 		}
736 		/* extattrctl(2) filename parameter is in upath2/vnode2 */
737 		UPATH2_TOKENS;
738 		VNODE2_TOKENS;
739 		EXTATTR_TOKENS;
740 		break;
741 
742 	case AUE_EXTATTR_GET_FILE:
743 	case AUE_EXTATTR_SET_FILE:
744 	case AUE_EXTATTR_LIST_FILE:
745 	case AUE_EXTATTR_DELETE_FILE:
746 	case AUE_EXTATTR_GET_LINK:
747 	case AUE_EXTATTR_SET_LINK:
748 	case AUE_EXTATTR_LIST_LINK:
749 	case AUE_EXTATTR_DELETE_LINK:
750 		UPATH1_VNODE1_TOKENS;
751 		EXTATTR_TOKENS;
752 		break;
753 
754 	case AUE_EXTATTR_GET_FD:
755 	case AUE_EXTATTR_SET_FD:
756 	case AUE_EXTATTR_LIST_FD:
757 	case AUE_EXTATTR_DELETE_FD:
758 		if (ARG_IS_VALID(kar, ARG_FD)) {
759 			tok = au_to_arg32(2, "fd", ar->ar_arg_fd);
760 			kau_write(rec, tok);
761 		}
762 		EXTATTR_TOKENS;
763 		break;
764 
765 	case AUE_FEXECVE:
766 		if (ARG_IS_VALID(kar, ARG_FD)) {
767 			tok = au_to_arg32(1, "fd", ar->ar_arg_fd);
768 			kau_write(rec, tok);
769 		}
770 		/* FALLTHROUGH */
771 
772 	case AUE_EXECVE:
773 		if (ARG_IS_VALID(kar, ARG_ARGV)) {
774 			tok = au_to_exec_args(ar->ar_arg_argv,
775 			    ar->ar_arg_argc);
776 			kau_write(rec, tok);
777 		}
778 		if (ARG_IS_VALID(kar, ARG_ENVV)) {
779 			tok = au_to_exec_env(ar->ar_arg_envv,
780 			    ar->ar_arg_envc);
781 			kau_write(rec, tok);
782 		}
783 		UPATH1_VNODE1_TOKENS;
784 		break;
785 
786 	case AUE_FCHMOD:
787 		if (ARG_IS_VALID(kar, ARG_MODE)) {
788 			tok = au_to_arg32(2, "new file mode",
789 			    ar->ar_arg_mode);
790 			kau_write(rec, tok);
791 		}
792 		FD_VNODE1_TOKENS;
793 		break;
794 
795 	/*
796 	 * XXXRW: Some of these need to handle non-vnode cases as well.
797 	 */
798 	case AUE_FCHDIR:
799 	case AUE_FPATHCONF:
800 	case AUE_FSTAT:
801 	case AUE_FSTATFS:
802 	case AUE_FSYNC:
803 	case AUE_FTRUNCATE:
804 	case AUE_FUTIMES:
805 	case AUE_GETDIRENTRIES:
806 	case AUE_GETDIRENTRIESATTR:
807 	case AUE_POLL:
808 	case AUE_READ:
809 	case AUE_READV:
810 	case AUE_WRITE:
811 	case AUE_WRITEV:
812 		FD_VNODE1_TOKENS;
813 		break;
814 
815 	case AUE_FCHOWN:
816 		if (ARG_IS_VALID(kar, ARG_UID)) {
817 			tok = au_to_arg32(2, "new file uid", ar->ar_arg_uid);
818 			kau_write(rec, tok);
819 		}
820 		if (ARG_IS_VALID(kar, ARG_GID)) {
821 			tok = au_to_arg32(3, "new file gid", ar->ar_arg_gid);
822 			kau_write(rec, tok);
823 		}
824 		FD_VNODE1_TOKENS;
825 		break;
826 
827 	case AUE_FCNTL:
828 		if (ar->ar_arg_cmd == F_GETLK || ar->ar_arg_cmd == F_SETLK ||
829 		    ar->ar_arg_cmd == F_SETLKW) {
830 			if (ARG_IS_VALID(kar, ARG_CMD)) {
831 				tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
832 				kau_write(rec, tok);
833 			}
834 			FD_VNODE1_TOKENS;
835 		}
836 		break;
837 
838 	case AUE_FCHFLAGS:
839 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
840 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
841 			kau_write(rec, tok);
842 		}
843 		FD_VNODE1_TOKENS;
844 		break;
845 
846 	case AUE_FLOCK:
847 		if (ARG_IS_VALID(kar, ARG_CMD)) {
848 			tok = au_to_arg32(2, "operation", ar->ar_arg_cmd);
849 			kau_write(rec, tok);
850 		}
851 		FD_VNODE1_TOKENS;
852 		break;
853 
854 	case AUE_RFORK:
855 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
856 			tok = au_to_arg32(1, "flags", ar->ar_arg_fflags);
857 			kau_write(rec, tok);
858 		}
859 		/* fall through */
860 	case AUE_FORK:
861 	case AUE_VFORK:
862 		if (ARG_IS_VALID(kar, ARG_PID)) {
863 			tok = au_to_arg32(0, "child PID", ar->ar_arg_pid);
864 			kau_write(rec, tok);
865 		}
866 		break;
867 
868 	case AUE_IOCTL:
869 		if (ARG_IS_VALID(kar, ARG_CMD)) {
870 			tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
871 			kau_write(rec, tok);
872 		}
873 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
874 			tok = au_to_arg32(1, "arg",
875 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
876 			kau_write(rec, tok);
877 		}
878 		if (ARG_IS_VALID(kar, ARG_VNODE1))
879 			FD_VNODE1_TOKENS;
880 		else {
881 			if (ARG_IS_VALID(kar, ARG_SOCKINFO)) {
882 				tok = kau_to_socket(&ar->ar_arg_sockinfo);
883 				kau_write(rec, tok);
884 			} else {
885 				if (ARG_IS_VALID(kar, ARG_FD)) {
886 					tok = au_to_arg32(1, "fd",
887 					    ar->ar_arg_fd);
888 					kau_write(rec, tok);
889 				}
890 			}
891 		}
892 		break;
893 
894 	case AUE_KILL:
895 	case AUE_KILLPG:
896 		if (ARG_IS_VALID(kar, ARG_SIGNUM)) {
897 			tok = au_to_arg32(2, "signal", ar->ar_arg_signum);
898 			kau_write(rec, tok);
899 		}
900 		PROCESS_PID_TOKENS(1);
901 		break;
902 
903 	case AUE_KTRACE:
904 		if (ARG_IS_VALID(kar, ARG_CMD)) {
905 			tok = au_to_arg32(2, "ops", ar->ar_arg_cmd);
906 			kau_write(rec, tok);
907 		}
908 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
909 			tok = au_to_arg32(3, "trpoints", ar->ar_arg_value);
910 			kau_write(rec, tok);
911 		}
912 		PROCESS_PID_TOKENS(4);
913 		UPATH1_VNODE1_TOKENS;
914 		break;
915 
916 	case AUE_LINK:
917 	case AUE_RENAME:
918 		UPATH1_VNODE1_TOKENS;
919 		UPATH2_TOKENS;
920 		break;
921 
922 	case AUE_LOADSHFILE:
923 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
924 			tok = au_to_arg32(4, "base addr",
925 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
926 			kau_write(rec, tok);
927 		}
928 		UPATH1_VNODE1_TOKENS;
929 		break;
930 
931 	case AUE_MKDIR:
932 		if (ARG_IS_VALID(kar, ARG_MODE)) {
933 			tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
934 			kau_write(rec, tok);
935 		}
936 		UPATH1_VNODE1_TOKENS;
937 		break;
938 
939 	case AUE_MKNOD:
940 		if (ARG_IS_VALID(kar, ARG_MODE)) {
941 			tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
942 			kau_write(rec, tok);
943 		}
944 		if (ARG_IS_VALID(kar, ARG_DEV)) {
945 			tok = au_to_arg32(3, "dev", ar->ar_arg_dev);
946 			kau_write(rec, tok);
947 		}
948 		UPATH1_VNODE1_TOKENS;
949 		break;
950 
951 	case AUE_MMAP:
952 	case AUE_MUNMAP:
953 	case AUE_MPROTECT:
954 	case AUE_MLOCK:
955 	case AUE_MUNLOCK:
956 	case AUE_MINHERIT:
957 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
958 			tok = au_to_arg32(1, "addr",
959 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
960 			kau_write(rec, tok);
961 		}
962 		if (ARG_IS_VALID(kar, ARG_LEN)) {
963 			tok = au_to_arg32(2, "len", ar->ar_arg_len);
964 			kau_write(rec, tok);
965 		}
966 		if (ar->ar_event == AUE_MMAP)
967 			FD_VNODE1_TOKENS;
968 		if (ar->ar_event == AUE_MPROTECT) {
969 			if (ARG_IS_VALID(kar, ARG_VALUE)) {
970 				tok = au_to_arg32(3, "protection",
971 				    ar->ar_arg_value);
972 				kau_write(rec, tok);
973 			}
974 		}
975 		if (ar->ar_event == AUE_MINHERIT) {
976 			if (ARG_IS_VALID(kar, ARG_VALUE)) {
977 				tok = au_to_arg32(3, "inherit",
978 				    ar->ar_arg_value);
979 				kau_write(rec, tok);
980 			}
981 		}
982 		break;
983 
984 	case AUE_MOUNT:
985 	case AUE_NMOUNT:
986 		/* XXX Need to handle NFS mounts */
987 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
988 			tok = au_to_arg32(3, "flags", ar->ar_arg_fflags);
989 			kau_write(rec, tok);
990 		}
991 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
992 			tok = au_to_text(ar->ar_arg_text);
993 			kau_write(rec, tok);
994 		}
995 		/* fall through */
996 
997 	case AUE_UMOUNT:
998 		UPATH1_VNODE1_TOKENS;
999 		break;
1000 
1001 	case AUE_MSGCTL:
1002 		ar->ar_event = audit_msgctl_to_event(ar->ar_arg_svipc_cmd);
1003 		/* Fall through */
1004 
1005 	case AUE_MSGRCV:
1006 	case AUE_MSGSND:
1007 		tok = au_to_arg32(1, "msg ID", ar->ar_arg_svipc_id);
1008 		kau_write(rec, tok);
1009 		if (ar->ar_errno != EINVAL) {
1010 			tok = au_to_ipc(AT_IPC_MSG, ar->ar_arg_svipc_id);
1011 			kau_write(rec, tok);
1012 		}
1013 		break;
1014 
1015 	case AUE_MSGGET:
1016 		if (ar->ar_errno == 0) {
1017 			if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1018 				tok = au_to_ipc(AT_IPC_MSG,
1019 				    ar->ar_arg_svipc_id);
1020 				kau_write(rec, tok);
1021 			}
1022 		}
1023 		break;
1024 
1025 	case AUE_RESETSHFILE:
1026 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
1027 			tok = au_to_arg32(1, "base addr",
1028 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
1029 			kau_write(rec, tok);
1030 		}
1031 		break;
1032 
1033 	case AUE_OPEN_RC:
1034 	case AUE_OPEN_RTC:
1035 	case AUE_OPEN_RWC:
1036 	case AUE_OPEN_RWTC:
1037 	case AUE_OPEN_WC:
1038 	case AUE_OPEN_WTC:
1039 	case AUE_CREAT:
1040 		if (ARG_IS_VALID(kar, ARG_MODE)) {
1041 			tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1042 			kau_write(rec, tok);
1043 		}
1044 		/* fall through */
1045 
1046 	case AUE_OPEN_R:
1047 	case AUE_OPEN_RT:
1048 	case AUE_OPEN_RW:
1049 	case AUE_OPEN_RWT:
1050 	case AUE_OPEN_W:
1051 	case AUE_OPEN_WT:
1052 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
1053 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1054 			kau_write(rec, tok);
1055 		}
1056 		UPATH1_VNODE1_TOKENS;
1057 		break;
1058 
1059 	case AUE_PTRACE:
1060 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1061 			tok = au_to_arg32(1, "request", ar->ar_arg_cmd);
1062 			kau_write(rec, tok);
1063 		}
1064 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
1065 			tok = au_to_arg32(3, "addr",
1066 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
1067 			kau_write(rec, tok);
1068 		}
1069 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1070 			tok = au_to_arg32(4, "data", ar->ar_arg_value);
1071 			kau_write(rec, tok);
1072 		}
1073 		PROCESS_PID_TOKENS(2);
1074 		break;
1075 
1076 	case AUE_QUOTACTL:
1077 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1078 			tok = au_to_arg32(2, "command", ar->ar_arg_cmd);
1079 			kau_write(rec, tok);
1080 		}
1081 		if (ARG_IS_VALID(kar, ARG_UID)) {
1082 			tok = au_to_arg32(3, "uid", ar->ar_arg_uid);
1083 			kau_write(rec, tok);
1084 		}
1085 		UPATH1_VNODE1_TOKENS;
1086 		break;
1087 
1088 	case AUE_REBOOT:
1089 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1090 			tok = au_to_arg32(1, "howto", ar->ar_arg_cmd);
1091 			kau_write(rec, tok);
1092 		}
1093 		break;
1094 
1095 	case AUE_SEMCTL:
1096 		ar->ar_event = audit_semctl_to_event(ar->ar_arg_svipc_cmd);
1097 		/* Fall through */
1098 
1099 	case AUE_SEMOP:
1100 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1101 			tok = au_to_arg32(1, "sem ID", ar->ar_arg_svipc_id);
1102 			kau_write(rec, tok);
1103 			if (ar->ar_errno != EINVAL) {
1104 				tok = au_to_ipc(AT_IPC_SEM,
1105 				    ar->ar_arg_svipc_id);
1106 				kau_write(rec, tok);
1107 			}
1108 		}
1109 		break;
1110 
1111 	case AUE_SEMGET:
1112 		if (ar->ar_errno == 0) {
1113 			if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1114 				tok = au_to_ipc(AT_IPC_SEM,
1115 				    ar->ar_arg_svipc_id);
1116 				kau_write(rec, tok);
1117 			}
1118 		}
1119 		break;
1120 
1121 	case AUE_SETEGID:
1122 		if (ARG_IS_VALID(kar, ARG_EGID)) {
1123 			tok = au_to_arg32(1, "gid", ar->ar_arg_egid);
1124 			kau_write(rec, tok);
1125 		}
1126 		break;
1127 
1128 	case AUE_SETEUID:
1129 		if (ARG_IS_VALID(kar, ARG_EUID)) {
1130 			tok = au_to_arg32(1, "uid", ar->ar_arg_euid);
1131 			kau_write(rec, tok);
1132 		}
1133 		break;
1134 
1135 	case AUE_SETREGID:
1136 		if (ARG_IS_VALID(kar, ARG_RGID)) {
1137 			tok = au_to_arg32(1, "rgid", ar->ar_arg_rgid);
1138 			kau_write(rec, tok);
1139 		}
1140 		if (ARG_IS_VALID(kar, ARG_EGID)) {
1141 			tok = au_to_arg32(2, "egid", ar->ar_arg_egid);
1142 			kau_write(rec, tok);
1143 		}
1144 		break;
1145 
1146 	case AUE_SETREUID:
1147 		if (ARG_IS_VALID(kar, ARG_RUID)) {
1148 			tok = au_to_arg32(1, "ruid", ar->ar_arg_ruid);
1149 			kau_write(rec, tok);
1150 		}
1151 		if (ARG_IS_VALID(kar, ARG_EUID)) {
1152 			tok = au_to_arg32(2, "euid", ar->ar_arg_euid);
1153 			kau_write(rec, tok);
1154 		}
1155 		break;
1156 
1157 	case AUE_SETRESGID:
1158 		if (ARG_IS_VALID(kar, ARG_RGID)) {
1159 			tok = au_to_arg32(1, "rgid", ar->ar_arg_rgid);
1160 			kau_write(rec, tok);
1161 		}
1162 		if (ARG_IS_VALID(kar, ARG_EGID)) {
1163 			tok = au_to_arg32(2, "egid", ar->ar_arg_egid);
1164 			kau_write(rec, tok);
1165 		}
1166 		if (ARG_IS_VALID(kar, ARG_SGID)) {
1167 			tok = au_to_arg32(3, "sgid", ar->ar_arg_sgid);
1168 			kau_write(rec, tok);
1169 		}
1170 		break;
1171 
1172 	case AUE_SETRESUID:
1173 		if (ARG_IS_VALID(kar, ARG_RUID)) {
1174 			tok = au_to_arg32(1, "ruid", ar->ar_arg_ruid);
1175 			kau_write(rec, tok);
1176 		}
1177 		if (ARG_IS_VALID(kar, ARG_EUID)) {
1178 			tok = au_to_arg32(2, "euid", ar->ar_arg_euid);
1179 			kau_write(rec, tok);
1180 		}
1181 		if (ARG_IS_VALID(kar, ARG_SUID)) {
1182 			tok = au_to_arg32(3, "suid", ar->ar_arg_suid);
1183 			kau_write(rec, tok);
1184 		}
1185 		break;
1186 
1187 	case AUE_SETGID:
1188 		if (ARG_IS_VALID(kar, ARG_GID)) {
1189 			tok = au_to_arg32(1, "gid", ar->ar_arg_gid);
1190 			kau_write(rec, tok);
1191 		}
1192 		break;
1193 
1194 	case AUE_SETUID:
1195 		if (ARG_IS_VALID(kar, ARG_UID)) {
1196 			tok = au_to_arg32(1, "uid", ar->ar_arg_uid);
1197 			kau_write(rec, tok);
1198 		}
1199 		break;
1200 
1201 	case AUE_SETGROUPS:
1202 		if (ARG_IS_VALID(kar, ARG_GROUPSET)) {
1203 			for(ctr = 0; ctr < ar->ar_arg_groups.gidset_size; ctr++)
1204 			{
1205 				tok = au_to_arg32(1, "setgroups",
1206 				    ar->ar_arg_groups.gidset[ctr]);
1207 				kau_write(rec, tok);
1208 			}
1209 		}
1210 		break;
1211 
1212 	case AUE_SETLOGIN:
1213 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1214 			tok = au_to_text(ar->ar_arg_text);
1215 			kau_write(rec, tok);
1216 		}
1217 		break;
1218 
1219 	case AUE_SETPRIORITY:
1220 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1221 			tok = au_to_arg32(1, "which", ar->ar_arg_cmd);
1222 			kau_write(rec, tok);
1223 		}
1224 		if (ARG_IS_VALID(kar, ARG_UID)) {
1225 			tok = au_to_arg32(2, "who", ar->ar_arg_uid);
1226 			kau_write(rec, tok);
1227 		}
1228 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1229 			tok = au_to_arg32(2, "priority", ar->ar_arg_value);
1230 			kau_write(rec, tok);
1231 		}
1232 		break;
1233 
1234 	case AUE_SETPRIVEXEC:
1235 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1236 			tok = au_to_arg32(1, "flag", ar->ar_arg_value);
1237 			kau_write(rec, tok);
1238 		}
1239 		break;
1240 
1241 	/* AUE_SHMAT, AUE_SHMCTL, AUE_SHMDT and AUE_SHMGET are SysV IPC */
1242 	case AUE_SHMAT:
1243 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1244 			tok = au_to_arg32(1, "shmid", ar->ar_arg_svipc_id);
1245 			kau_write(rec, tok);
1246 			/* XXXAUDIT: Does having the ipc token make sense? */
1247 			tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1248 			kau_write(rec, tok);
1249 		}
1250 		if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1251 			tok = au_to_arg32(2, "shmaddr",
1252 			    (int)(uintptr_t)ar->ar_arg_svipc_addr);
1253 			kau_write(rec, tok);
1254 		}
1255 		if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1256 			tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1257 			kau_write(rec, tok);
1258 		}
1259 		break;
1260 
1261 	case AUE_SHMCTL:
1262 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1263 			tok = au_to_arg32(1, "shmid", ar->ar_arg_svipc_id);
1264 			kau_write(rec, tok);
1265 			/* XXXAUDIT: Does having the ipc token make sense? */
1266 			tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1267 			kau_write(rec, tok);
1268 		}
1269 		switch (ar->ar_arg_svipc_cmd) {
1270 		case IPC_STAT:
1271 			ar->ar_event = AUE_SHMCTL_STAT;
1272 			break;
1273 		case IPC_RMID:
1274 			ar->ar_event = AUE_SHMCTL_RMID;
1275 			break;
1276 		case IPC_SET:
1277 			ar->ar_event = AUE_SHMCTL_SET;
1278 			if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1279 				tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1280 				kau_write(rec, tok);
1281 			}
1282 			break;
1283 		default:
1284 			break;	/* We will audit a bad command */
1285 		}
1286 		break;
1287 
1288 	case AUE_SHMDT:
1289 		if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1290 			tok = au_to_arg32(1, "shmaddr",
1291 			    (int)(uintptr_t)ar->ar_arg_svipc_addr);
1292 			kau_write(rec, tok);
1293 		}
1294 		break;
1295 
1296 	case AUE_SHMGET:
1297 		/* This is unusual; the return value is in an argument token */
1298 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1299 			tok = au_to_arg32(0, "shmid", ar->ar_arg_svipc_id);
1300 			kau_write(rec, tok);
1301 			tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1302 			kau_write(rec, tok);
1303 		}
1304 		if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1305 			tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1306 			kau_write(rec, tok);
1307 		}
1308 		break;
1309 
1310 	/* AUE_SHMOPEN, AUE_SHMUNLINK, AUE_SEMOPEN, AUE_SEMCLOSE
1311 	 * and AUE_SEMUNLINK are Posix IPC */
1312 	case AUE_SHMOPEN:
1313 		if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1314 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1315 			kau_write(rec, tok);
1316 		}
1317 		if (ARG_IS_VALID(kar, ARG_MODE)) {
1318 			tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1319 			kau_write(rec, tok);
1320 		}
1321 	case AUE_SHMUNLINK:
1322 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1323 			tok = au_to_text(ar->ar_arg_text);
1324 			kau_write(rec, tok);
1325 		}
1326 		if (ARG_IS_VALID(kar, ARG_POSIX_IPC_PERM)) {
1327 			struct ipc_perm perm;
1328 
1329 			perm.uid = ar->ar_arg_pipc_perm.pipc_uid;
1330 			perm.gid = ar->ar_arg_pipc_perm.pipc_gid;
1331 			perm.cuid = ar->ar_arg_pipc_perm.pipc_uid;
1332 			perm.cgid = ar->ar_arg_pipc_perm.pipc_gid;
1333 			perm.mode = ar->ar_arg_pipc_perm.pipc_mode;
1334 			perm.seq = 0;
1335 			perm.key = 0;
1336 			tok = au_to_ipc_perm(&perm);
1337 			kau_write(rec, tok);
1338 		}
1339 		break;
1340 
1341 	case AUE_SEMOPEN:
1342 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
1343 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1344 			kau_write(rec, tok);
1345 		}
1346 		if (ARG_IS_VALID(kar, ARG_MODE)) {
1347 			tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1348 			kau_write(rec, tok);
1349 		}
1350 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1351 			tok = au_to_arg32(4, "value", ar->ar_arg_value);
1352 			kau_write(rec, tok);
1353 		}
1354 		/* fall through */
1355 
1356 	case AUE_SEMUNLINK:
1357 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1358 			tok = au_to_text(ar->ar_arg_text);
1359 			kau_write(rec, tok);
1360 		}
1361 		if (ARG_IS_VALID(kar, ARG_POSIX_IPC_PERM)) {
1362 			struct ipc_perm perm;
1363 
1364 			perm.uid = ar->ar_arg_pipc_perm.pipc_uid;
1365 			perm.gid = ar->ar_arg_pipc_perm.pipc_gid;
1366 			perm.cuid = ar->ar_arg_pipc_perm.pipc_uid;
1367 			perm.cgid = ar->ar_arg_pipc_perm.pipc_gid;
1368 			perm.mode = ar->ar_arg_pipc_perm.pipc_mode;
1369 			perm.seq = 0;
1370 			perm.key = 0;
1371 			tok = au_to_ipc_perm(&perm);
1372 			kau_write(rec, tok);
1373 		}
1374 		break;
1375 
1376 	case AUE_SEMCLOSE:
1377 		if (ARG_IS_VALID(kar, ARG_FD)) {
1378 			tok = au_to_arg32(1, "sem", ar->ar_arg_fd);
1379 			kau_write(rec, tok);
1380 		}
1381 		break;
1382 
1383 	case AUE_SYMLINK:
1384 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1385 			tok = au_to_text(ar->ar_arg_text);
1386 			kau_write(rec, tok);
1387 		}
1388 		UPATH1_VNODE1_TOKENS;
1389 		break;
1390 
1391 	case AUE_SYSCTL:
1392 	case AUE_SYSCTL_NONADMIN:
1393 		if (ARG_IS_VALID(kar, ARG_CTLNAME | ARG_LEN)) {
1394 			for (ctr = 0; ctr < ar->ar_arg_len; ctr++) {
1395 				tok = au_to_arg32(1, "name",
1396 				    ar->ar_arg_ctlname[ctr]);
1397 				kau_write(rec, tok);
1398 			}
1399 		}
1400 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1401 			tok = au_to_arg32(5, "newval", ar->ar_arg_value);
1402 			kau_write(rec, tok);
1403 		}
1404 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1405 			tok = au_to_text(ar->ar_arg_text);
1406 			kau_write(rec, tok);
1407 		}
1408 		break;
1409 
1410 	case AUE_UMASK:
1411 		if (ARG_IS_VALID(kar, ARG_MASK)) {
1412 			tok = au_to_arg32(1, "new mask", ar->ar_arg_mask);
1413 			kau_write(rec, tok);
1414 		}
1415 		tok = au_to_arg32(0, "prev mask", ar->ar_retval);
1416 		kau_write(rec, tok);
1417 		break;
1418 
1419 	case AUE_WAIT4:
1420 		if (ARG_IS_VALID(kar, ARG_PID)) {
1421 			tok = au_to_arg32(0, "pid", ar->ar_arg_pid);
1422 			kau_write(rec, tok);
1423 		}
1424 		break;
1425 
1426 	case AUE_NULL:
1427 	default:
1428 		printf("BSM conversion requested for unknown event %d\n",
1429 		    ar->ar_event);
1430 
1431 		/*
1432 		 * Write the subject token so it is properly freed here.
1433 		 */
1434 		kau_write(rec, subj_tok);
1435 		kau_free(rec);
1436 		return (BSM_NOAUDIT);
1437 	}
1438 
1439 	kau_write(rec, subj_tok);
1440 	tok = au_to_return32((char)ar->ar_errno, ar->ar_retval);
1441 	kau_write(rec, tok);  /* Every record gets a return token */
1442 
1443 	kau_close(rec, &ar->ar_endtime, ar->ar_event);
1444 
1445 	*pau = rec;
1446 	return (BSM_SUCCESS);
1447 }
1448 
1449 /*
1450  * Verify that a record is a valid BSM record. This verification is simple
1451  * now, but may be expanded on sometime in the future.  Return 1 if the
1452  * record is good, 0 otherwise.
1453  */
1454 int
1455 bsm_rec_verify(void *rec)
1456 {
1457 	char c = *(char *)rec;
1458 
1459 	/*
1460 	 * Check the token ID of the first token; it has to be a header
1461 	 * token.
1462 	 *
1463 	 * XXXAUDIT There needs to be a token structure to map a token.
1464 	 * XXXAUDIT 'Shouldn't be simply looking at the first char.
1465 	 */
1466 	if ((c != AUT_HEADER32) && (c != AUT_HEADER32_EX) &&
1467 	    (c != AUT_HEADER64) && (c != AUT_HEADER64_EX))
1468 		return (0);
1469 	return (1);
1470 }
1471