xref: /freebsd/sys/security/audit/audit_bsm.c (revision 10f0bcab61ef441cb5af32fb706688d8cbd55dc0)
1 /*
2  * Copyright (c) 1999-2005 Apple Computer, 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 Computer, 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  * $FreeBSD$
30  */
31 
32 #include <sys/param.h>
33 #include <sys/vnode.h>
34 #include <sys/ipc.h>
35 #include <sys/lock.h>
36 #include <sys/malloc.h>
37 #include <sys/mutex.h>
38 #include <sys/socket.h>
39 #include <sys/extattr.h>
40 #include <sys/fcntl.h>
41 #include <sys/user.h>
42 #include <sys/systm.h>
43 
44 #include <bsm/audit.h>
45 #include <bsm/audit_internal.h>
46 #include <bsm/audit_record.h>
47 #include <bsm/audit_kevents.h>
48 
49 #include <security/audit/audit.h>
50 #include <security/audit/audit_private.h>
51 
52 #include <netinet/in_systm.h>
53 #include <netinet/in.h>
54 #include <netinet/ip.h>
55 
56 MALLOC_DEFINE(M_AUDITBSM, "audit_bsm", "Audit BSM data");
57 
58 static void	audit_sys_auditon(struct audit_record *ar,
59 		    struct au_record *rec);
60 
61 /*
62  * Initialize the BSM auditing subsystem.
63  */
64 void
65 kau_init(void)
66 {
67 
68 	au_evclassmap_init();
69 }
70 
71 /*
72  * This call reserves memory for the audit record.  Memory must be guaranteed
73  * before any auditable event can be generated.  The au_record structure
74  * maintains a reference to the memory allocated above and also the list of
75  * tokens associated with this record
76  */
77 static struct au_record *
78 kau_open(void)
79 {
80 	struct au_record *rec;
81 
82 	rec = malloc(sizeof(*rec), M_AUDITBSM, M_WAITOK);
83 	rec->data = NULL;
84 	TAILQ_INIT(&rec->token_q);
85 	rec->len = 0;
86 	rec->used = 1;
87 
88 	return (rec);
89 }
90 
91 /*
92  * Store the token with the record descriptor.
93  */
94 static void
95 kau_write(struct au_record *rec, struct au_token *tok)
96 {
97 
98 	KASSERT(tok != NULL, ("kau_write: tok == NULL"));
99 
100 	TAILQ_INSERT_TAIL(&rec->token_q, tok, tokens);
101 	rec->len += tok->len;
102 }
103 
104 /*
105  * Close out the audit record by adding the header token, identifying any
106  * missing tokens.  Write out the tokens to the record memory.
107  */
108 static void
109 kau_close(struct au_record *rec, struct timespec *ctime, short event)
110 {
111 	u_char *dptr;
112 	size_t tot_rec_size;
113 	token_t *cur, *hdr, *trail;
114 	struct timeval tm;
115 
116 	tot_rec_size = rec->len + AUDIT_HEADER_SIZE + AUDIT_TRAILER_SIZE;
117 	rec->data = malloc(tot_rec_size, M_AUDITBSM, M_WAITOK | M_ZERO);
118 
119 	tm.tv_usec = ctime->tv_nsec / 1000;
120 	tm.tv_sec = ctime->tv_sec;
121 	hdr = au_to_header32_tm(tot_rec_size, event, 0, tm);
122 	TAILQ_INSERT_HEAD(&rec->token_q, hdr, tokens);
123 
124 	trail = au_to_trailer(tot_rec_size);
125 	TAILQ_INSERT_TAIL(&rec->token_q, trail, tokens);
126 
127 	rec->len = tot_rec_size;
128 	dptr = rec->data;
129 	TAILQ_FOREACH(cur, &rec->token_q, tokens) {
130 		memcpy(dptr, cur->t_data, cur->len);
131 		dptr += cur->len;
132 	}
133 }
134 
135 /*
136  * Free a BSM audit record by releasing all the tokens and clearing the audit
137  * record information.
138  */
139 void
140 kau_free(struct au_record *rec)
141 {
142 	struct au_token *tok;
143 
144 	/* Free the token list. */
145 	while ((tok = TAILQ_FIRST(&rec->token_q))) {
146 		TAILQ_REMOVE(&rec->token_q, tok, tokens);
147 		free(tok->t_data, M_AUDITBSM);
148 		free(tok, M_AUDITBSM);
149 	}
150 
151 	rec->used = 0;
152 	rec->len = 0;
153 	free(rec->data, M_AUDITBSM);
154 	free(rec, M_AUDITBSM);
155 }
156 
157 /*
158  * XXX: May want turn some (or all) of these macros into functions in order
159  * to reduce the generated code sized.
160  *
161  * XXXAUDIT: These macros assume that 'kar', 'ar', 'rec', and 'tok' in the
162  * caller are OK with this.
163  */
164 #define UPATH1_TOKENS do {						\
165 	if (ARG_IS_VALID(kar, ARG_UPATH1)) {				\
166 		tok = au_to_path(ar->ar_arg_upath1);			\
167 		kau_write(rec, tok);					\
168 	}								\
169 } while (0)
170 
171 #define UPATH2_TOKENS do {						\
172 	if (ARG_IS_VALID(kar, ARG_UPATH2)) {				\
173 		tok = au_to_path(ar->ar_arg_upath2);			\
174 		kau_write(rec, tok);					\
175 	}								\
176 } while (0)
177 
178 #define VNODE1_TOKENS do {						\
179 	if (ARG_IS_VALID(kar, ARG_VNODE1)) {  				\
180 		tok = au_to_attr32(&ar->ar_arg_vnode1);			\
181 		kau_write(rec, tok);					\
182 	}								\
183 } while (0)
184 
185 #define UPATH1_VNODE1_TOKENS do {					\
186 	if (ARG_IS_VALID(kar, ARG_UPATH1)) {  				\
187 		UPATH1_TOKENS;						\
188 	}								\
189 	if (ARG_IS_VALID(kar, ARG_VNODE1)) {  				\
190 		tok = au_to_attr32(&ar->ar_arg_vnode1);			\
191 		kau_write(rec, tok);					\
192 	}								\
193 } while (0)
194 
195 #define VNODE2_TOKENS do {						\
196 	if (ARG_IS_VALID(kar, ARG_VNODE2)) {  				\
197 		tok = au_to_attr32(&ar->ar_arg_vnode2);			\
198 		kau_write(rec, tok);					\
199 	}								\
200 } while (0)
201 
202 #define FD_VNODE1_TOKENS	do {					\
203 	if (ARG_IS_VALID(kar, ARG_VNODE1)) {				\
204 		if (ARG_IS_VALID(kar, ARG_FD)) {			\
205 			tok = au_to_arg32(1, "fd", ar->ar_arg_fd);	\
206 			kau_write(rec, tok);				\
207 		}							\
208 		tok = au_to_attr32(&ar->ar_arg_vnode1);			\
209 		kau_write(rec, tok);					\
210 	} else {							\
211 		if (ARG_IS_VALID(kar, ARG_FD)) {			\
212 			tok = au_to_arg32(1, "non-file: fd",		\
213 			    ar->ar_arg_fd);				\
214 			kau_write(rec, tok);				\
215 		}							\
216 	}								\
217 } while (0)
218 
219 #define PROCESS_PID_TOKENS(argn) do {					\
220 	if ((ar->ar_arg_pid > 0) /* Reference a single process */	\
221 	    && (ARG_IS_VALID(kar, ARG_PROCESS))) {			\
222 		tok = au_to_process32_ex(ar->ar_arg_auid,		\
223 		    ar->ar_arg_euid, ar->ar_arg_egid,			\
224 		    ar->ar_arg_ruid, ar->ar_arg_rgid,			\
225 		    ar->ar_arg_pid, ar->ar_arg_asid,			\
226 		    &ar->ar_arg_termid_addr);				\
227 		kau_write(rec, tok);					\
228 	} else if (ARG_IS_VALID(kar, ARG_PID)) {			\
229 		tok = au_to_arg32(argn, "process", ar->ar_arg_pid);	\
230 		kau_write(rec, tok);					\
231 	}								\
232 } while (0)								\
233 
234 #define EXTATTR_TOKENS	do {						\
235 	if (ARG_IS_VALID(kar, ARG_VALUE)) {				\
236 		switch (ar->ar_arg_value) {				\
237 		case EXTATTR_NAMESPACE_USER:				\
238 			tok = au_to_text(EXTATTR_NAMESPACE_USER_STRING);\
239 			break;						\
240 		case EXTATTR_NAMESPACE_SYSTEM:				\
241 			tok = au_to_text(EXTATTR_NAMESPACE_SYSTEM_STRING);\
242 			break;						\
243 		default:						\
244 			tok = au_to_arg32(3, "attrnamespace",		\
245 			    ar->ar_arg_value);				\
246 			break;						\
247 		}							\
248 		kau_write(rec, tok);					\
249 	}								\
250 	/* attrname is in the text field */				\
251 	if (ARG_IS_VALID(kar, ARG_TEXT)) {				\
252 		tok = au_to_text(ar->ar_arg_text);			\
253 		kau_write(rec, tok);					\
254 	}								\
255 } while (0)
256 
257 /*
258  * Implement auditing for the auditon() system call. The audit tokens that
259  * are generated depend on the command that was sent into the auditon()
260  * system call.
261  */
262 static void
263 audit_sys_auditon(struct audit_record *ar, struct au_record *rec)
264 {
265 	struct au_token *tok;
266 
267 	switch (ar->ar_arg_cmd) {
268 	case A_SETPOLICY:
269 		if (sizeof(ar->ar_arg_auditon.au_flags) > 4)
270 			tok = au_to_arg64(1, "policy",
271 			    ar->ar_arg_auditon.au_flags);
272 		else
273 			tok = au_to_arg32(1, "policy",
274 			    ar->ar_arg_auditon.au_flags);
275 		kau_write(rec, tok);
276 		break;
277 
278 	case A_SETKMASK:
279 		tok = au_to_arg32(2, "setkmask:as_success",
280 		    ar->ar_arg_auditon.au_mask.am_success);
281 		kau_write(rec, tok);
282 		tok = au_to_arg32(2, "setkmask:as_failure",
283 		    ar->ar_arg_auditon.au_mask.am_failure);
284 		kau_write(rec, tok);
285 		break;
286 
287 	case A_SETQCTRL:
288 		tok = au_to_arg32(3, "setqctrl:aq_hiwater",
289 		    ar->ar_arg_auditon.au_qctrl.aq_hiwater);
290 		kau_write(rec, tok);
291 		tok = au_to_arg32(3, "setqctrl:aq_lowater",
292 		    ar->ar_arg_auditon.au_qctrl.aq_lowater);
293 		kau_write(rec, tok);
294 		tok = au_to_arg32(3, "setqctrl:aq_bufsz",
295 		    ar->ar_arg_auditon.au_qctrl.aq_bufsz);
296 		kau_write(rec, tok);
297 		tok = au_to_arg32(3, "setqctrl:aq_delay",
298 		    ar->ar_arg_auditon.au_qctrl.aq_delay);
299 		kau_write(rec, tok);
300 		tok = au_to_arg32(3, "setqctrl:aq_minfree",
301 		    ar->ar_arg_auditon.au_qctrl.aq_minfree);
302 		kau_write(rec, tok);
303 		break;
304 
305 	case A_SETUMASK:
306 		tok = au_to_arg32(3, "setumask:as_success",
307 		    ar->ar_arg_auditon.au_auinfo.ai_mask.am_success);
308 		kau_write(rec, tok);
309 		tok = au_to_arg32(3, "setumask:as_failure",
310 		    ar->ar_arg_auditon.au_auinfo.ai_mask.am_failure);
311 		kau_write(rec, tok);
312 		break;
313 
314 	case A_SETSMASK:
315 		tok = au_to_arg32(3, "setsmask:as_success",
316 		    ar->ar_arg_auditon.au_auinfo.ai_mask.am_success);
317 		kau_write(rec, tok);
318 		tok = au_to_arg32(3, "setsmask:as_failure",
319 		    ar->ar_arg_auditon.au_auinfo.ai_mask.am_failure);
320 		kau_write(rec, tok);
321 		break;
322 
323 	case A_SETCOND:
324 		if (sizeof(ar->ar_arg_auditon.au_cond) > 4)
325 			tok = au_to_arg64(3, "setcond",
326 			    ar->ar_arg_auditon.au_cond);
327 		else
328 			tok = au_to_arg32(3, "setcond",
329 			    ar->ar_arg_auditon.au_cond);
330 		kau_write(rec, tok);
331 		break;
332 
333 	case A_SETCLASS:
334 		tok = au_to_arg32(2, "setclass:ec_event",
335 		    ar->ar_arg_auditon.au_evclass.ec_number);
336 		kau_write(rec, tok);
337 		tok = au_to_arg32(3, "setclass:ec_class",
338 		    ar->ar_arg_auditon.au_evclass.ec_class);
339 		kau_write(rec, tok);
340 		break;
341 
342 	case A_SETPMASK:
343 		tok = au_to_arg32(2, "setpmask:as_success",
344 		    ar->ar_arg_auditon.au_aupinfo.ap_mask.am_success);
345 		kau_write(rec, tok);
346 		tok = au_to_arg32(2, "setpmask:as_failure",
347 		    ar->ar_arg_auditon.au_aupinfo.ap_mask.am_failure);
348 		kau_write(rec, tok);
349 		break;
350 
351 	case A_SETFSIZE:
352 		tok = au_to_arg32(2, "setfsize:filesize",
353 		    ar->ar_arg_auditon.au_fstat.af_filesz);
354 		kau_write(rec, tok);
355 		break;
356 
357 	default:
358 		break;
359 	}
360 }
361 
362 /*
363  * Convert an internal kernel audit record to a BSM record and return a
364  * success/failure indicator. The BSM record is passed as an out parameter to
365  * this function.
366  *
367  * Return conditions:
368  *   BSM_SUCCESS: The BSM record is valid
369  *   BSM_FAILURE: Failure; the BSM record is NULL.
370  *   BSM_NOAUDIT: The event is not auditable for BSM; the BSM record is NULL.
371  */
372 int
373 kaudit_to_bsm(struct kaudit_record *kar, struct au_record **pau)
374 {
375 	struct au_token *tok, *subj_tok;
376 	struct au_record *rec;
377 	au_tid_t tid;
378 	struct audit_record *ar;
379 	int ctr;
380 
381 	KASSERT(kar != NULL, ("kaudit_to_bsm: kar == NULL"));
382 
383 	*pau = NULL;
384 	ar = &kar->k_ar;
385 	rec = kau_open();
386 
387 	/* Create the subject token */
388 	switch (ar->ar_subj_term_addr.at_type) {
389 	case AU_IPv4:
390 		tid.port = ar->ar_subj_term_addr.at_port;
391 		tid.machine = ar->ar_subj_term_addr.at_addr[0];
392 		subj_tok = au_to_subject32(ar->ar_subj_auid,  /* audit ID */
393 		    ar->ar_subj_cred.cr_uid, /* eff uid */
394 		    ar->ar_subj_egid,	/* eff group id */
395 		    ar->ar_subj_ruid, 	/* real uid */
396 		    ar->ar_subj_rgid, 	/* real group id */
397 		    ar->ar_subj_pid,	/* process id */
398 		    ar->ar_subj_asid,	/* session ID */
399 		    &tid);
400 		break;
401 	case AU_IPv6:
402 		subj_tok = au_to_subject32_ex(ar->ar_subj_auid,
403 		    ar->ar_subj_cred.cr_uid,
404 		    ar->ar_subj_egid,
405 		    ar->ar_subj_ruid,
406 		    ar->ar_subj_rgid,
407 		    ar->ar_subj_pid,
408 		    ar->ar_subj_asid,
409 		    &ar->ar_subj_term_addr);
410 		break;
411 	default:
412 		bzero(&tid, sizeof(tid));
413 		subj_tok = au_to_subject32(ar->ar_subj_auid,
414 		    ar->ar_subj_cred.cr_uid,
415 		    ar->ar_subj_egid,
416 		    ar->ar_subj_ruid,
417 		    ar->ar_subj_rgid,
418 		    ar->ar_subj_pid,
419 		    ar->ar_subj_asid,
420 		    &tid);
421 	}
422 
423 	/*
424 	 * The logic inside each case fills in the tokens required for the
425 	 * event, except for the header, trailer, and return tokens.  The
426 	 * header and trailer tokens are added by the kau_close() function.
427 	 * The return token is added outside of the switch statement.
428 	 */
429 	switch(ar->ar_event) {
430 	case AUE_ACCEPT:
431 	case AUE_BIND:
432 	case AUE_LISTEN:
433 	case AUE_CONNECT:
434 	case AUE_RECV:
435 	case AUE_RECVFROM:
436 	case AUE_RECVMSG:
437 	case AUE_SEND:
438 	case AUE_SENDFILE:
439 	case AUE_SENDMSG:
440 	case AUE_SENDTO:
441 		/*
442 		 * Socket-related events.
443 		 */
444 		if (ARG_IS_VALID(kar, ARG_FD)) {
445 			tok = au_to_arg32(1, "fd", ar->ar_arg_fd);
446 			kau_write(rec, tok);
447 		}
448 		if (ARG_IS_VALID(kar, ARG_SADDRINET)) {
449 			tok = au_to_sock_inet((struct sockaddr_in *)
450 			    &ar->ar_arg_sockaddr);
451 			kau_write(rec, tok);
452 		}
453 		if (ARG_IS_VALID(kar, ARG_SADDRUNIX)) {
454 			tok = au_to_sock_unix((struct sockaddr_un *)
455 			    &ar->ar_arg_sockaddr);
456 			kau_write(rec, tok);
457 			UPATH1_TOKENS;
458 		}
459 		/* XXX Need to handle ARG_SADDRINET6 */
460 		break;
461 
462 	case AUE_SOCKET:
463 	case AUE_SOCKETPAIR:
464 		if (ARG_IS_VALID(kar, ARG_SOCKINFO)) {
465 			tok = au_to_arg32(1,"domain",
466 			    ar->ar_arg_sockinfo.so_domain);
467 			kau_write(rec, tok);
468 			tok = au_to_arg32(2,"type",
469 			    ar->ar_arg_sockinfo.so_type);
470 			kau_write(rec, tok);
471 			tok = au_to_arg32(3,"protocol",
472 			    ar->ar_arg_sockinfo.so_protocol);
473 			kau_write(rec, tok);
474 		}
475 		break;
476 
477 	case AUE_SETSOCKOPT:
478 	case AUE_SHUTDOWN:
479 		if (ARG_IS_VALID(kar, ARG_FD)) {
480 			tok = au_to_arg32(1, "fd", ar->ar_arg_fd);
481 			kau_write(rec, tok);
482 		}
483 		break;
484 
485 	case AUE_ACCT:
486 		if (ARG_IS_VALID(kar, ARG_UPATH1)) {
487 			UPATH1_VNODE1_TOKENS;
488 		} else {
489 			tok = au_to_arg32(1, "accounting off", 0);
490 			kau_write(rec, tok);
491 		}
492 		break;
493 
494 	case AUE_SETAUID:
495 		if (ARG_IS_VALID(kar, ARG_AUID)) {
496 			tok = au_to_arg32(2, "setauid", ar->ar_arg_auid);
497 			kau_write(rec, tok);
498 		}
499 		break;
500 
501 	case AUE_SETAUDIT:
502 		if (ARG_IS_VALID(kar, ARG_AUID) &&
503 		    ARG_IS_VALID(kar, ARG_ASID) &&
504 		    ARG_IS_VALID(kar, ARG_AMASK) &&
505 		    ARG_IS_VALID(kar, ARG_TERMID)) {
506 			tok = au_to_arg32(1, "setaudit:auid",
507 			    ar->ar_arg_auid);
508 			kau_write(rec, tok);
509 			tok = au_to_arg32(1, "setaudit:port",
510 			    ar->ar_arg_termid.port);
511 			kau_write(rec, tok);
512 			tok = au_to_arg32(1, "setaudit:machine",
513 			    ar->ar_arg_termid.machine);
514 			kau_write(rec, tok);
515 			tok = au_to_arg32(1, "setaudit:as_success",
516 			    ar->ar_arg_amask.am_success);
517 			kau_write(rec, tok);
518 			tok = au_to_arg32(1, "setaudit:as_failure",
519 			    ar->ar_arg_amask.am_failure);
520 			kau_write(rec, tok);
521 			tok = au_to_arg32(1, "setaudit:asid",
522 			    ar->ar_arg_asid);
523 			kau_write(rec, tok);
524 		}
525 		break;
526 
527 	case AUE_SETAUDIT_ADDR:
528 		if (ARG_IS_VALID(kar, ARG_AUID) &&
529 		    ARG_IS_VALID(kar, ARG_ASID) &&
530 		    ARG_IS_VALID(kar, ARG_AMASK) &&
531 		    ARG_IS_VALID(kar, ARG_TERMID_ADDR)) {
532 			tok = au_to_arg32(1, "setaudit_addr:auid",
533 			    ar->ar_arg_auid);
534 			kau_write(rec, tok);
535 			tok = au_to_arg32(1, "setaudit_addr:as_success",
536 			    ar->ar_arg_amask.am_success);
537 			kau_write(rec, tok);
538 			tok = au_to_arg32(1, "setaudit_addr:as_failure",
539 			    ar->ar_arg_amask.am_failure);
540 			kau_write(rec, tok);
541 			tok = au_to_arg32(1, "setaudit_addr:asid",
542 			    ar->ar_arg_asid);
543 			kau_write(rec, tok);
544 			tok = au_to_arg32(1, "setaudit_addr:type",
545 			    ar->ar_arg_termid_addr.at_type);
546 			kau_write(rec, tok);
547 			tok = au_to_arg32(1, "setaudit_addr:port",
548 			    ar->ar_arg_termid_addr.at_port);
549 			kau_write(rec, tok);
550 			if (ar->ar_arg_termid_addr.at_type == AU_IPv6)
551 				tok = au_to_in_addr_ex((struct in6_addr *)
552 				    &ar->ar_arg_termid_addr.at_addr[0]);
553 			if (ar->ar_arg_termid_addr.at_type == AU_IPv4)
554 				tok = au_to_in_addr((struct in_addr *)
555 				    &ar->ar_arg_termid_addr.at_addr[0]);
556 			kau_write(rec, tok);
557 		}
558 		break;
559 
560 	case AUE_AUDITON:
561 		/*
562 		 * For AUDITON commands without own event, audit the cmd.
563 		 */
564 		if (ARG_IS_VALID(kar, ARG_CMD)) {
565 			tok = au_to_arg32(1, "cmd", ar->ar_arg_cmd);
566 			kau_write(rec, tok);
567 		}
568 		/* fall thru */
569 
570 	case AUE_AUDITON_GETCAR:
571 	case AUE_AUDITON_GETCLASS:
572 	case AUE_AUDITON_GETCOND:
573 	case AUE_AUDITON_GETCWD:
574 	case AUE_AUDITON_GETKMASK:
575 	case AUE_AUDITON_GETSTAT:
576 	case AUE_AUDITON_GPOLICY:
577 	case AUE_AUDITON_GQCTRL:
578 	case AUE_AUDITON_SETCLASS:
579 	case AUE_AUDITON_SETCOND:
580 	case AUE_AUDITON_SETKMASK:
581 	case AUE_AUDITON_SETSMASK:
582 	case AUE_AUDITON_SETSTAT:
583 	case AUE_AUDITON_SETUMASK:
584 	case AUE_AUDITON_SPOLICY:
585 	case AUE_AUDITON_SQCTRL:
586 		if (ARG_IS_VALID(kar, ARG_AUDITON))
587 			audit_sys_auditon(ar, rec);
588 		break;
589 
590 	case AUE_AUDITCTL:
591 		UPATH1_VNODE1_TOKENS;
592 		break;
593 
594 	case AUE_EXIT:
595 		if (ARG_IS_VALID(kar, ARG_EXIT)) {
596 			tok = au_to_exit(ar->ar_arg_exitretval,
597 			    ar->ar_arg_exitstatus);
598 			kau_write(rec, tok);
599 		}
600 		break;
601 
602 	case AUE_ADJTIME:
603 	case AUE_CLOCK_SETTIME:
604 	case AUE_AUDIT:
605 	case AUE_DUP2:
606 	case AUE_GETAUDIT:
607 	case AUE_GETAUDIT_ADDR:
608 	case AUE_GETAUID:
609 	case AUE_GETCWD:
610 	case AUE_GETFSSTAT:
611 	case AUE_GETRESUID:
612 	case AUE_GETRESGID:
613 	case AUE_KQUEUE:
614 	case AUE_LSEEK:
615 	case AUE_MODLOAD:
616 	case AUE_MODUNLOAD:
617 	case AUE_MSGSYS:
618 	case AUE_NFS_SVC:
619 	case AUE_NTP_ADJTIME:
620 	case AUE_PIPE:
621 	case AUE_PROFILE:
622 	case AUE_RTPRIO:
623 	case AUE_SEMSYS:
624 	case AUE_SHMSYS:
625 	case AUE_SETPGRP:
626 	case AUE_SETRLIMIT:
627 	case AUE_SETSID:
628 	case AUE_SETTIMEOFDAY:
629 	case AUE_SYSARCH:
630 
631 		/*
632 		 * Header, subject, and return tokens added at end.
633 		 */
634 		break;
635 
636 	case AUE_MKFIFO:
637 		if (ARG_IS_VALID(kar, ARG_MODE)) {
638 			tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
639 			kau_write(rec, tok);
640 		}
641 		/* fall through */
642 	case AUE_ACCESS:
643 	case AUE_CHDIR:
644 	case AUE_CHROOT:
645 	case AUE_EACCESS:
646 	case AUE_GETATTRLIST:
647 	case AUE_JAIL:
648 	case AUE_LUTIMES:
649 	case AUE_NFS_GETFH:
650 	case AUE_LSTAT:
651 	case AUE_PATHCONF:
652 	case AUE_READLINK:
653 	case AUE_REVOKE:
654 	case AUE_RMDIR:
655 	case AUE_SEARCHFS:
656 	case AUE_SETATTRLIST:
657 	case AUE_STAT:
658 	case AUE_STATFS:
659 	case AUE_SWAPON:
660 	case AUE_SWAPOFF:
661 	case AUE_TRUNCATE:
662 	case AUE_UNDELETE:
663 	case AUE_UNLINK:
664 	case AUE_UTIMES:
665 		UPATH1_VNODE1_TOKENS;
666 		break;
667 
668 	case AUE_FHSTATFS:
669 	case AUE_FHOPEN:
670 	case AUE_FHSTAT:
671 		/* XXXRW: Need to audit vnode argument. */
672 		break;
673 
674 	case AUE_CHFLAGS:
675 	case AUE_LCHFLAGS:
676 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
677 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
678 			kau_write(rec, tok);
679 		}
680 		UPATH1_VNODE1_TOKENS;
681 		break;
682 
683 	case AUE_CHMOD:
684 	case AUE_LCHMOD:
685 		if (ARG_IS_VALID(kar, ARG_MODE)) {
686 			tok = au_to_arg32(2, "new file mode",
687 			    ar->ar_arg_mode);
688 			kau_write(rec, tok);
689 		}
690 		UPATH1_VNODE1_TOKENS;
691 		break;
692 
693 	case AUE_CHOWN:
694 	case AUE_LCHOWN:
695 		if (ARG_IS_VALID(kar, ARG_UID)) {
696 			tok = au_to_arg32(2, "new file uid", ar->ar_arg_uid);
697 			kau_write(rec, tok);
698 		}
699 		if (ARG_IS_VALID(kar, ARG_GID)) {
700 			tok = au_to_arg32(3, "new file gid", ar->ar_arg_gid);
701 			kau_write(rec, tok);
702 		}
703 		UPATH1_VNODE1_TOKENS;
704 		break;
705 
706 	case AUE_EXCHANGEDATA:
707 		UPATH1_VNODE1_TOKENS;
708 		UPATH2_TOKENS;
709 		break;
710 
711 	case AUE_CLOSE:
712 		if (ARG_IS_VALID(kar, ARG_FD)) {
713 			tok = au_to_arg32(2, "fd", ar->ar_arg_fd);
714 			kau_write(rec, tok);
715 		}
716 		UPATH1_VNODE1_TOKENS;
717 		break;
718 
719 	case AUE_CORE:
720 		if (ARG_IS_VALID(kar, ARG_SIGNUM)) {
721 			tok = au_to_arg32(0, "signal", ar->ar_arg_signum);
722 			kau_write(rec, tok);
723 		}
724 		UPATH1_VNODE1_TOKENS;
725 		break;
726 
727 	case AUE_EXTATTRCTL:
728 		UPATH1_VNODE1_TOKENS;
729 		if (ARG_IS_VALID(kar, ARG_CMD)) {
730 			tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
731 			kau_write(rec, tok);
732 		}
733 		/* extattrctl(2) filename parameter is in upath2/vnode2 */
734 		UPATH2_TOKENS;
735 		VNODE2_TOKENS;
736 		EXTATTR_TOKENS;
737 		break;
738 
739 	case AUE_EXTATTR_GET_FILE:
740 	case AUE_EXTATTR_SET_FILE:
741 	case AUE_EXTATTR_LIST_FILE:
742 	case AUE_EXTATTR_DELETE_FILE:
743 	case AUE_EXTATTR_GET_LINK:
744 	case AUE_EXTATTR_SET_LINK:
745 	case AUE_EXTATTR_LIST_LINK:
746 	case AUE_EXTATTR_DELETE_LINK:
747 		UPATH1_VNODE1_TOKENS;
748 		EXTATTR_TOKENS;
749 		break;
750 
751 	case AUE_EXTATTR_GET_FD:
752 	case AUE_EXTATTR_SET_FD:
753 	case AUE_EXTATTR_LIST_FD:
754 	case AUE_EXTATTR_DELETE_FD:
755 		if (ARG_IS_VALID(kar, ARG_FD)) {
756 			tok = au_to_arg32(2, "fd", ar->ar_arg_fd);
757 			kau_write(rec, tok);
758 		}
759 		EXTATTR_TOKENS;
760 		break;
761 
762 	case AUE_EXECVE:
763 		if (ARG_IS_VALID(kar, ARG_ARGV)) {
764 			tok = au_to_exec_args(ar->ar_arg_argv,
765 			    ar->ar_arg_argc);
766 			kau_write(rec, tok);
767 		}
768 		if (ARG_IS_VALID(kar, ARG_ENVV)) {
769 			tok = au_to_exec_env(ar->ar_arg_envv,
770 			    ar->ar_arg_envc);
771 			kau_write(rec, tok);
772 		}
773 		UPATH1_VNODE1_TOKENS;
774 		break;
775 
776 	case AUE_FCHMOD:
777 		if (ARG_IS_VALID(kar, ARG_MODE)) {
778 			tok = au_to_arg32(2, "new file mode",
779 			    ar->ar_arg_mode);
780 			kau_write(rec, tok);
781 		}
782 		FD_VNODE1_TOKENS;
783 		break;
784 
785 	/*
786 	 * XXXRW: Some of these need to handle non-vnode cases as well.
787 	 */
788 	case AUE_FCHDIR:
789 	case AUE_FPATHCONF:
790 	case AUE_FSTAT:
791 	case AUE_FSTATFS:
792 	case AUE_FSYNC:
793 	case AUE_FTRUNCATE:
794 	case AUE_FUTIMES:
795 	case AUE_GETDIRENTRIES:
796 	case AUE_GETDIRENTRIESATTR:
797 	case AUE_POLL:
798 	case AUE_READ:
799 	case AUE_READV:
800 	case AUE_WRITE:
801 	case AUE_WRITEV:
802 		FD_VNODE1_TOKENS;
803 		break;
804 
805 	case AUE_FCHOWN:
806 		if (ARG_IS_VALID(kar, ARG_UID)) {
807 			tok = au_to_arg32(2, "new file uid", ar->ar_arg_uid);
808 			kau_write(rec, tok);
809 		}
810 		if (ARG_IS_VALID(kar, ARG_GID)) {
811 			tok = au_to_arg32(3, "new file gid", ar->ar_arg_gid);
812 			kau_write(rec, tok);
813 		}
814 		FD_VNODE1_TOKENS;
815 		break;
816 
817 	case AUE_FCNTL:
818 		if (ar->ar_arg_cmd == F_GETLK || ar->ar_arg_cmd == F_SETLK ||
819 			ar->ar_arg_cmd == F_SETLKW) {
820 			if (ARG_IS_VALID(kar, ARG_CMD)) {
821 				tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
822 				kau_write(rec, tok);
823 			}
824 			FD_VNODE1_TOKENS;
825 		}
826 		break;
827 
828 	case AUE_FCHFLAGS:
829 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
830 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
831 			kau_write(rec, tok);
832 		}
833 		FD_VNODE1_TOKENS;
834 		break;
835 
836 	case AUE_FLOCK:
837 		if (ARG_IS_VALID(kar, ARG_CMD)) {
838 			tok = au_to_arg32(2, "operation", ar->ar_arg_cmd);
839 			kau_write(rec, tok);
840 		}
841 		FD_VNODE1_TOKENS;
842 		break;
843 
844 	case AUE_RFORK:
845 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
846 			tok = au_to_arg32(1, "flags", ar->ar_arg_fflags);
847 			kau_write(rec, tok);
848 		}
849 		/* fall through */
850 	case AUE_FORK:
851 	case AUE_VFORK:
852 		if (ARG_IS_VALID(kar, ARG_PID)) {
853 			tok = au_to_arg32(0, "child PID", ar->ar_arg_pid);
854 			kau_write(rec, tok);
855 		}
856 		break;
857 
858 	case AUE_IOCTL:
859 		if (ARG_IS_VALID(kar, ARG_CMD)) {
860 			tok = au_to_arg32(2, "cmd", ar->ar_arg_cmd);
861 			kau_write(rec, tok);
862 		}
863 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
864 			tok = au_to_arg32(1, "arg",
865 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
866 			kau_write(rec, tok);
867 		}
868 		if (ARG_IS_VALID(kar, ARG_VNODE1))
869 			FD_VNODE1_TOKENS;
870 		else {
871 			if (ARG_IS_VALID(kar, ARG_SOCKINFO)) {
872 				tok = kau_to_socket(&ar->ar_arg_sockinfo);
873 				kau_write(rec, tok);
874 			} else {
875 				if (ARG_IS_VALID(kar, ARG_FD)) {
876 					tok = au_to_arg32(1, "fd",
877 					    ar->ar_arg_fd);
878 			    		kau_write(rec, tok);
879 				}
880 			}
881 		}
882 		break;
883 
884 	case AUE_KILL:
885 	case AUE_KILLPG:
886 		if (ARG_IS_VALID(kar, ARG_SIGNUM)) {
887 			tok = au_to_arg32(2, "signal", ar->ar_arg_signum);
888 			kau_write(rec, tok);
889 		}
890 		PROCESS_PID_TOKENS(1);
891 		break;
892 
893 	case AUE_KTRACE:
894 		if (ARG_IS_VALID(kar, ARG_CMD)) {
895 			tok = au_to_arg32(2, "ops", ar->ar_arg_cmd);
896 			kau_write(rec, tok);
897 		}
898 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
899 			tok = au_to_arg32(3, "trpoints", ar->ar_arg_value);
900 			kau_write(rec, tok);
901 		}
902 		PROCESS_PID_TOKENS(4);
903 		UPATH1_VNODE1_TOKENS;
904 		break;
905 
906 	case AUE_LINK:
907 	case AUE_RENAME:
908 		UPATH1_VNODE1_TOKENS;
909 		UPATH2_TOKENS;
910 		break;
911 
912 	case AUE_LOADSHFILE:
913 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
914 			tok = au_to_arg32(4, "base addr",
915 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
916 			kau_write(rec, tok);
917 		}
918 		UPATH1_VNODE1_TOKENS;
919 		break;
920 
921 	case AUE_MKDIR:
922 		if (ARG_IS_VALID(kar, ARG_MODE)) {
923 			tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
924 			kau_write(rec, tok);
925 		}
926 		UPATH1_VNODE1_TOKENS;
927 		break;
928 
929 	case AUE_MKNOD:
930 		if (ARG_IS_VALID(kar, ARG_MODE)) {
931 			tok = au_to_arg32(2, "mode", ar->ar_arg_mode);
932 			kau_write(rec, tok);
933 		}
934 		if (ARG_IS_VALID(kar, ARG_DEV)) {
935 			tok = au_to_arg32(3, "dev", ar->ar_arg_dev);
936 			kau_write(rec, tok);
937 		}
938 		UPATH1_VNODE1_TOKENS;
939 		break;
940 
941 	case AUE_MMAP:
942 	case AUE_MUNMAP:
943 	case AUE_MPROTECT:
944 	case AUE_MLOCK:
945 	case AUE_MUNLOCK:
946 	case AUE_MINHERIT:
947 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
948 			tok = au_to_arg32(1, "addr",
949 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
950 			kau_write(rec, tok);
951 		}
952 		if (ARG_IS_VALID(kar, ARG_LEN)) {
953 			tok = au_to_arg32(2, "len", ar->ar_arg_len);
954 			kau_write(rec, tok);
955 		}
956 		if (ar->ar_event == AUE_MMAP)
957 			FD_VNODE1_TOKENS;
958 		if (ar->ar_event == AUE_MPROTECT) {
959 			if (ARG_IS_VALID(kar, ARG_VALUE)) {
960 				tok = au_to_arg32(3, "protection",
961 				    ar->ar_arg_value);
962 				kau_write(rec, tok);
963 			}
964 		}
965 		if (ar->ar_event == AUE_MINHERIT) {
966 			if (ARG_IS_VALID(kar, ARG_VALUE)) {
967 				tok = au_to_arg32(3, "inherit",
968 				    ar->ar_arg_value);
969 				kau_write(rec, tok);
970 			}
971 		}
972 		break;
973 
974 	case AUE_MOUNT:
975 	case AUE_NMOUNT:
976 		/* XXX Need to handle NFS mounts */
977 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
978 			tok = au_to_arg32(3, "flags", ar->ar_arg_fflags);
979 			kau_write(rec, tok);
980 		}
981 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
982 			tok = au_to_text(ar->ar_arg_text);
983 			kau_write(rec, tok);
984 		}
985 		/* fall through */
986 
987 	case AUE_UMOUNT:
988 		UPATH1_VNODE1_TOKENS;
989 		break;
990 
991 	case AUE_MSGCTL:
992 		ar->ar_event = audit_msgctl_to_event(ar->ar_arg_svipc_cmd);
993 		/* Fall through */
994 
995 	case AUE_MSGRCV:
996 	case AUE_MSGSND:
997 		tok = au_to_arg32(1, "msg ID", ar->ar_arg_svipc_id);
998 		kau_write(rec, tok);
999 		if (ar->ar_errno != EINVAL) {
1000 			tok = au_to_ipc(AT_IPC_MSG, ar->ar_arg_svipc_id);
1001 			kau_write(rec, tok);
1002 		}
1003 		break;
1004 
1005 	case AUE_MSGGET:
1006 		if (ar->ar_errno == 0) {
1007 			if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1008 				tok = au_to_ipc(AT_IPC_MSG,
1009 				    ar->ar_arg_svipc_id);
1010 				kau_write(rec, tok);
1011 			}
1012 		}
1013 		break;
1014 
1015 	case AUE_RESETSHFILE:
1016 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
1017 			tok = au_to_arg32(1, "base addr",
1018 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
1019 			kau_write(rec, tok);
1020 		}
1021 		break;
1022 
1023 	case AUE_OPEN_RC:
1024 	case AUE_OPEN_RTC:
1025 	case AUE_OPEN_RWC:
1026 	case AUE_OPEN_RWTC:
1027 	case AUE_OPEN_WC:
1028 	case AUE_OPEN_WTC:
1029 	case AUE_CREAT:
1030 		if (ARG_IS_VALID(kar, ARG_MODE)) {
1031 			tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1032 			kau_write(rec, tok);
1033 		}
1034 		/* fall through */
1035 
1036 	case AUE_OPEN_R:
1037 	case AUE_OPEN_RT:
1038 	case AUE_OPEN_RW:
1039 	case AUE_OPEN_RWT:
1040 	case AUE_OPEN_W:
1041 	case AUE_OPEN_WT:
1042 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
1043 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1044 			kau_write(rec, tok);
1045 		}
1046 		UPATH1_VNODE1_TOKENS;
1047 		break;
1048 
1049 	case AUE_PTRACE:
1050 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1051 			tok = au_to_arg32(1, "request", ar->ar_arg_cmd);
1052 			kau_write(rec, tok);
1053 		}
1054 		if (ARG_IS_VALID(kar, ARG_ADDR)) {
1055 			tok = au_to_arg32(3, "addr",
1056 			    (u_int32_t)(uintptr_t)ar->ar_arg_addr);
1057 			kau_write(rec, tok);
1058 		}
1059 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1060 			tok = au_to_arg32(4, "data", ar->ar_arg_value);
1061 			kau_write(rec, tok);
1062 		}
1063 		PROCESS_PID_TOKENS(2);
1064 		break;
1065 
1066 	case AUE_QUOTACTL:
1067 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1068 			tok = au_to_arg32(2, "command", ar->ar_arg_cmd);
1069 			kau_write(rec, tok);
1070 		}
1071 		if (ARG_IS_VALID(kar, ARG_UID)) {
1072 			tok = au_to_arg32(3, "uid", ar->ar_arg_uid);
1073 			kau_write(rec, tok);
1074 		}
1075 		UPATH1_VNODE1_TOKENS;
1076 		break;
1077 
1078 	case AUE_REBOOT:
1079 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1080 			tok = au_to_arg32(1, "howto", ar->ar_arg_cmd);
1081 			kau_write(rec, tok);
1082 		}
1083 		break;
1084 
1085 	case AUE_SEMCTL:
1086 		ar->ar_event = audit_semctl_to_event(ar->ar_arg_svipc_cmd);
1087 		/* Fall through */
1088 
1089 	case AUE_SEMOP:
1090 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1091 			tok = au_to_arg32(1, "sem ID", ar->ar_arg_svipc_id);
1092 			kau_write(rec, tok);
1093 			if (ar->ar_errno != EINVAL) {
1094 				tok = au_to_ipc(AT_IPC_SEM,
1095 				    ar->ar_arg_svipc_id);
1096 				kau_write(rec, tok);
1097 			}
1098 		}
1099 		break;
1100 
1101 	case AUE_SEMGET:
1102 		if (ar->ar_errno == 0) {
1103 			if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
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_SETEGID:
1112 		if (ARG_IS_VALID(kar, ARG_EGID)) {
1113 			tok = au_to_arg32(1, "gid", ar->ar_arg_egid);
1114 			kau_write(rec, tok);
1115 		}
1116 		break;
1117 
1118 	case AUE_SETEUID:
1119 		if (ARG_IS_VALID(kar, ARG_EUID)) {
1120 			tok = au_to_arg32(1, "uid", ar->ar_arg_euid);
1121 			kau_write(rec, tok);
1122 		}
1123 		break;
1124 
1125 	case AUE_SETREGID:
1126 		if (ARG_IS_VALID(kar, ARG_RGID)) {
1127 			tok = au_to_arg32(1, "rgid", ar->ar_arg_rgid);
1128 			kau_write(rec, tok);
1129 		}
1130 		if (ARG_IS_VALID(kar, ARG_EGID)) {
1131 			tok = au_to_arg32(2, "egid", ar->ar_arg_egid);
1132 			kau_write(rec, tok);
1133 		}
1134 		break;
1135 
1136 	case AUE_SETREUID:
1137 		if (ARG_IS_VALID(kar, ARG_RUID)) {
1138 			tok = au_to_arg32(1, "ruid", ar->ar_arg_ruid);
1139 			kau_write(rec, tok);
1140 		}
1141 		if (ARG_IS_VALID(kar, ARG_EUID)) {
1142 			tok = au_to_arg32(2, "euid", ar->ar_arg_euid);
1143 			kau_write(rec, tok);
1144 		}
1145 		break;
1146 
1147 	case AUE_SETRESGID:
1148 		if (ARG_IS_VALID(kar, ARG_RGID)) {
1149 			tok = au_to_arg32(1, "rgid", ar->ar_arg_rgid);
1150 			kau_write(rec, tok);
1151 		}
1152 		if (ARG_IS_VALID(kar, ARG_EGID)) {
1153 			tok = au_to_arg32(2, "egid", ar->ar_arg_egid);
1154 			kau_write(rec, tok);
1155 		}
1156 		if (ARG_IS_VALID(kar, ARG_SGID)) {
1157 			tok = au_to_arg32(3, "sgid", ar->ar_arg_sgid);
1158 			kau_write(rec, tok);
1159 		}
1160 		break;
1161 
1162 	case AUE_SETRESUID:
1163 		if (ARG_IS_VALID(kar, ARG_RUID)) {
1164 			tok = au_to_arg32(1, "ruid", ar->ar_arg_ruid);
1165 			kau_write(rec, tok);
1166 		}
1167 		if (ARG_IS_VALID(kar, ARG_EUID)) {
1168 			tok = au_to_arg32(2, "euid", ar->ar_arg_euid);
1169 			kau_write(rec, tok);
1170 		}
1171 		if (ARG_IS_VALID(kar, ARG_SUID)) {
1172 			tok = au_to_arg32(3, "suid", ar->ar_arg_suid);
1173 			kau_write(rec, tok);
1174 		}
1175 		break;
1176 
1177 	case AUE_SETGID:
1178 		if (ARG_IS_VALID(kar, ARG_GID)) {
1179 			tok = au_to_arg32(1, "gid", ar->ar_arg_gid);
1180 			kau_write(rec, tok);
1181 		}
1182 		break;
1183 
1184 	case AUE_SETUID:
1185 		if (ARG_IS_VALID(kar, ARG_UID)) {
1186 			tok = au_to_arg32(1, "uid", ar->ar_arg_uid);
1187 			kau_write(rec, tok);
1188 		}
1189 		break;
1190 
1191 	case AUE_SETGROUPS:
1192 		if (ARG_IS_VALID(kar, ARG_GROUPSET)) {
1193 			for(ctr = 0; ctr < ar->ar_arg_groups.gidset_size; ctr++)
1194 			{
1195 				tok = au_to_arg32(1, "setgroups",
1196 				    ar->ar_arg_groups.gidset[ctr]);
1197 				kau_write(rec, tok);
1198 			}
1199 		}
1200 		break;
1201 
1202 	case AUE_SETLOGIN:
1203 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1204 			tok = au_to_text(ar->ar_arg_text);
1205 			kau_write(rec, tok);
1206 		}
1207 		break;
1208 
1209 	case AUE_SETPRIORITY:
1210 		if (ARG_IS_VALID(kar, ARG_CMD)) {
1211 			tok = au_to_arg32(1, "which", ar->ar_arg_cmd);
1212 			kau_write(rec, tok);
1213 		}
1214 		if (ARG_IS_VALID(kar, ARG_UID)) {
1215 			tok = au_to_arg32(2, "who", ar->ar_arg_uid);
1216 			kau_write(rec, tok);
1217 		}
1218 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1219 			tok = au_to_arg32(2, "priority", ar->ar_arg_value);
1220 			kau_write(rec, tok);
1221 		}
1222 		break;
1223 
1224 	case AUE_SETPRIVEXEC:
1225 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1226 			tok = au_to_arg32(1, "flag", ar->ar_arg_value);
1227 			kau_write(rec, tok);
1228 		}
1229 		break;
1230 
1231 	/* AUE_SHMAT, AUE_SHMCTL, AUE_SHMDT and AUE_SHMGET are SysV IPC */
1232 	case AUE_SHMAT:
1233 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1234 			tok = au_to_arg32(1, "shmid", ar->ar_arg_svipc_id);
1235 			kau_write(rec, tok);
1236 			/* XXXAUDIT: Does having the ipc token make sense? */
1237 			tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1238 			kau_write(rec, tok);
1239 		}
1240 		if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1241 			tok = au_to_arg32(2, "shmaddr",
1242 			    (int)(uintptr_t)ar->ar_arg_svipc_addr);
1243 			kau_write(rec, tok);
1244 		}
1245 		if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1246 			tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1247 			kau_write(rec, tok);
1248 		}
1249 		break;
1250 
1251 	case AUE_SHMCTL:
1252 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1253 			tok = au_to_arg32(1, "shmid", ar->ar_arg_svipc_id);
1254 			kau_write(rec, tok);
1255 			/* XXXAUDIT: Does having the ipc token make sense? */
1256 			tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1257 			kau_write(rec, tok);
1258 		}
1259 		switch (ar->ar_arg_svipc_cmd) {
1260 		case IPC_STAT:
1261 			ar->ar_event = AUE_SHMCTL_STAT;
1262 			break;
1263 		case IPC_RMID:
1264 			ar->ar_event = AUE_SHMCTL_RMID;
1265 			break;
1266 		case IPC_SET:
1267 			ar->ar_event = AUE_SHMCTL_SET;
1268 			if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1269 				tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1270 				kau_write(rec, tok);
1271 			}
1272 			break;
1273 		default:
1274 			break;	/* We will audit a bad command */
1275 		}
1276 		break;
1277 
1278 	case AUE_SHMDT:
1279 		if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1280 			tok = au_to_arg32(1, "shmaddr",
1281 			    (int)(uintptr_t)ar->ar_arg_svipc_addr);
1282 			kau_write(rec, tok);
1283 		}
1284 		break;
1285 
1286 	case AUE_SHMGET:
1287 		/* This is unusual; the return value is in an argument token */
1288 		if (ARG_IS_VALID(kar, ARG_SVIPC_ID)) {
1289 			tok = au_to_arg32(0, "shmid", ar->ar_arg_svipc_id);
1290 			kau_write(rec, tok);
1291 			tok = au_to_ipc(AT_IPC_SHM, ar->ar_arg_svipc_id);
1292 			kau_write(rec, tok);
1293 		}
1294 		if (ARG_IS_VALID(kar, ARG_SVIPC_PERM)) {
1295 			tok = au_to_ipc_perm(&ar->ar_arg_svipc_perm);
1296 			kau_write(rec, tok);
1297 		}
1298 		break;
1299 
1300 	/* AUE_SHMOPEN, AUE_SHMUNLINK, AUE_SEMOPEN, AUE_SEMCLOSE
1301 	 * and AUE_SEMUNLINK are Posix IPC */
1302 	case AUE_SHMOPEN:
1303 		if (ARG_IS_VALID(kar, ARG_SVIPC_ADDR)) {
1304 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1305 			kau_write(rec, tok);
1306 		}
1307 		if (ARG_IS_VALID(kar, ARG_MODE)) {
1308 			tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1309 			kau_write(rec, tok);
1310 		}
1311 	case AUE_SHMUNLINK:
1312 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1313 			tok = au_to_text(ar->ar_arg_text);
1314 			kau_write(rec, tok);
1315 		}
1316 		if (ARG_IS_VALID(kar, ARG_POSIX_IPC_PERM)) {
1317 		/* Create an ipc_perm token */
1318 			struct ipc_perm perm;
1319 			perm.uid = ar->ar_arg_pipc_perm.pipc_uid;
1320 			perm.gid = ar->ar_arg_pipc_perm.pipc_gid;
1321 			perm.cuid = ar->ar_arg_pipc_perm.pipc_uid;
1322 			perm.cgid = ar->ar_arg_pipc_perm.pipc_gid;
1323 			perm.mode = ar->ar_arg_pipc_perm.pipc_mode;
1324 			perm.seq = 0;
1325 			perm.key = 0;
1326 			tok = au_to_ipc_perm(&perm);
1327 			kau_write(rec, tok);
1328 		}
1329 		break;
1330 
1331 	case AUE_SEMOPEN:
1332 		if (ARG_IS_VALID(kar, ARG_FFLAGS)) {
1333 			tok = au_to_arg32(2, "flags", ar->ar_arg_fflags);
1334 			kau_write(rec, tok);
1335 		}
1336 		if (ARG_IS_VALID(kar, ARG_MODE)) {
1337 			tok = au_to_arg32(3, "mode", ar->ar_arg_mode);
1338 			kau_write(rec, tok);
1339 		}
1340 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1341 			tok = au_to_arg32(4, "value", ar->ar_arg_value);
1342 			kau_write(rec, tok);
1343 		}
1344 		/* fall through */
1345 
1346 	case AUE_SEMUNLINK:
1347 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1348 			tok = au_to_text(ar->ar_arg_text);
1349 			kau_write(rec, tok);
1350 		}
1351 		if (ARG_IS_VALID(kar, ARG_POSIX_IPC_PERM)) {
1352 		/* Create an ipc_perm token */
1353 			struct ipc_perm perm;
1354 			perm.uid = ar->ar_arg_pipc_perm.pipc_uid;
1355 			perm.gid = ar->ar_arg_pipc_perm.pipc_gid;
1356 			perm.cuid = ar->ar_arg_pipc_perm.pipc_uid;
1357 			perm.cgid = ar->ar_arg_pipc_perm.pipc_gid;
1358 			perm.mode = ar->ar_arg_pipc_perm.pipc_mode;
1359 			perm.seq = 0;
1360 			perm.key = 0;
1361 			tok = au_to_ipc_perm(&perm);
1362 			kau_write(rec, tok);
1363 		}
1364 		break;
1365 
1366 	case AUE_SEMCLOSE:
1367 		if (ARG_IS_VALID(kar, ARG_FD)) {
1368 			tok = au_to_arg32(1, "sem", ar->ar_arg_fd);
1369 			kau_write(rec, tok);
1370 		}
1371 		break;
1372 
1373 	case AUE_SYMLINK:
1374 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1375 			tok = au_to_text(ar->ar_arg_text);
1376 			kau_write(rec, tok);
1377 		}
1378 		UPATH1_VNODE1_TOKENS;
1379 		break;
1380 
1381 	case AUE_SYSCTL:
1382 		if (ARG_IS_VALID(kar, ARG_CTLNAME | ARG_LEN)) {
1383 			for (ctr = 0; ctr < ar->ar_arg_len; ctr++) {
1384 				tok = au_to_arg32(1, "name",
1385 				    ar->ar_arg_ctlname[ctr]);
1386 				kau_write(rec, tok);
1387 			}
1388 		}
1389 		if (ARG_IS_VALID(kar, ARG_VALUE)) {
1390 			tok = au_to_arg32(5, "newval", ar->ar_arg_value);
1391 			kau_write(rec, tok);
1392 		}
1393 		if (ARG_IS_VALID(kar, ARG_TEXT)) {
1394 			tok = au_to_text(ar->ar_arg_text);
1395 			kau_write(rec, tok);
1396 		}
1397 		break;
1398 
1399 	case AUE_UMASK:
1400 		if (ARG_IS_VALID(kar, ARG_MASK)) {
1401 			tok = au_to_arg32(1, "new mask", ar->ar_arg_mask);
1402 			kau_write(rec, tok);
1403 		}
1404 		tok = au_to_arg32(0, "prev mask", ar->ar_retval);
1405 		kau_write(rec, tok);
1406 		break;
1407 
1408 	case AUE_WAIT4:
1409 		if (ARG_IS_VALID(kar, ARG_PID)) {
1410 			tok = au_to_arg32(0, "pid", ar->ar_arg_pid);
1411 			kau_write(rec, tok);
1412 		}
1413 		break;
1414 
1415 	case AUE_NULL:
1416 	default:
1417 		printf("BSM conversion requested for unknown event %d\n",
1418 		    ar->ar_event);
1419 		/* Write the subject token so it is properly freed here. */
1420 		kau_write(rec, subj_tok);
1421 		kau_free(rec);
1422 		return (BSM_NOAUDIT);
1423 	}
1424 
1425 	kau_write(rec, subj_tok);
1426 	tok = au_to_return32((char)ar->ar_errno, ar->ar_retval);
1427 	kau_write(rec, tok);  /* Every record gets a return token */
1428 
1429 	kau_close(rec, &ar->ar_endtime, ar->ar_event);
1430 
1431 	*pau = rec;
1432 	return (BSM_SUCCESS);
1433 }
1434 
1435 /*
1436  * Verify that a record is a valid BSM record. This verification is simple
1437  * now, but may be expanded on sometime in the future.  Return 1 if the
1438  * record is good, 0 otherwise.
1439  */
1440 int
1441 bsm_rec_verify(void *rec)
1442 {
1443 	char c = *(char *)rec;
1444 
1445 	/*
1446 	 * Check the token ID of the first token; it has to be a header
1447 	 * token.
1448 	 *
1449 	 * XXXAUDIT There needs to be a token structure to map a token.
1450 	 * XXXAUDIT 'Shouldn't be simply looking at the first char.
1451 	 */
1452 	if ((c != AUT_HEADER32) && (c != AUT_HEADER32_EX) &&
1453 	    (c != AUT_HEADER64) && (c != AUT_HEADER64_EX))
1454 		return (0);
1455 	return (1);
1456 }
1457