1 /*-
2  * Copyright (c) 2004-2009 Apple Inc.
3  * Copyright (c) 2016 Robert N. M. Watson
4  * All rights reserved.
5  *
6  * Portions of this software were developed by BAE Systems, the University of
7  * Cambridge Computer Laboratory, and Memorial University under DARPA/AFRL
8  * contract FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent
9  * Computing (TC) research program.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1.  Redistributions of source code must retain the above copyright
15  *     notice, this list of conditions and the following disclaimer.
16  * 2.  Redistributions in binary form must reproduce the above copyright
17  *     notice, this list of conditions and the following disclaimer in the
18  *     documentation and/or other materials provided with the distribution.
19  * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
20  *     its contributors may be used to endorse or promote products derived
21  *     from this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
27  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
32  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33  * POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 #ifdef __APPLE__
37 #define	_SYS_AUDIT_H		/* Prevent include of sys/audit.h. */
38 #endif
39 
40 #include <sys/param.h>
41 #include <sys/stat.h>
42 
43 #ifdef __APPLE__
44 #include <sys/queue.h>		/* Our bsm/audit.h doesn't include queue.h. */
45 #endif
46 
47 #include <sys/sysctl.h>
48 
49 #include <bsm/libbsm.h>
50 
51 #include <unistd.h>
52 #include <syslog.h>
53 #include <stdarg.h>
54 #include <string.h>
55 #include <errno.h>
56 
57 /* These are not advertised in libbsm.h */
58 int audit_set_terminal_port(dev_t *p);
59 int audit_set_terminal_host(uint32_t *m);
60 
61 /*
62  * General purpose audit submission mechanism for userspace.
63  */
64 int
65 audit_submit(short au_event, au_id_t auid, char status,
66     int reterr, const char *fmt, ...)
67 {
68 	char text[MAX_AUDITSTRING_LEN];
69 	token_t *token;
70 	int acond;
71 	va_list ap;
72 	pid_t pid;
73 	int error, afd, subj_ex;
74 	struct auditinfo ai;
75 	struct auditinfo_addr aia;
76 	au_tid_t atid;
77 
78 	if (audit_get_cond(&acond) != 0) {
79 		/*
80 		 * If auditon(2) returns ENOSYS, then audit has not been
81 		 * compiled into the kernel, so just return.
82 		 */
83 		if (errno == ENOSYS)
84 			return (0);
85 		error = errno;
86 		syslog(LOG_AUTH | LOG_ERR, "audit: auditon failed: %s",
87 		    strerror(errno));
88 		errno = error;
89 		return (-1);
90 	}
91 	if (acond == AUC_NOAUDIT)
92 		return (0);
93 	afd = au_open();
94 	if (afd < 0) {
95 		error = errno;
96 		syslog(LOG_AUTH | LOG_ERR, "audit: au_open failed: %s",
97 		    strerror(errno));
98 		errno = error;
99 		return (-1);
100 	}
101 	/*
102 	 * Try to use getaudit_addr(2) first.  If this kernel does not support
103 	 * it, then fall back on to getaudit(2).
104 	 */
105 	subj_ex = 0;
106 	error = getaudit_addr(&aia, sizeof(aia));
107 	if (error < 0 && errno == ENOSYS) {
108 		error = getaudit(&ai);
109 		if (error < 0) {
110 			error = errno;
111 			syslog(LOG_AUTH | LOG_ERR, "audit: getaudit failed: %s",
112 			    strerror(errno));
113 			errno = error;
114 			return (-1);
115 		}
116 		/*
117 		 * Convert this auditinfo_t to an auditinfo_addr_t to make the
118 		 * following code less complicated wrt to preselection and
119 		 * subject token generation.
120 		 */
121 		aia.ai_auid = ai.ai_auid;
122 		aia.ai_mask = ai.ai_mask;
123 		aia.ai_asid = ai.ai_asid;
124 		aia.ai_termid.at_type = AU_IPv4;
125 		aia.ai_termid.at_addr[0] = ai.ai_termid.machine;
126 		aia.ai_termid.at_port = ai.ai_termid.port;
127 	} else if (error < 0) {
128 		error = errno;
129 		syslog(LOG_AUTH | LOG_ERR, "audit: getaudit_addr failed: %s",
130 		    strerror(errno));
131 		errno = error;
132 		return (-1);
133 	}
134 	/*
135 	 * NB: We should be performing pre-selection here now that we have the
136 	 * masks for this process.
137 	 */
138 	if (aia.ai_termid.at_type == AU_IPv6)
139 		subj_ex = 1;
140 	pid = getpid();
141 	if (subj_ex == 0) {
142 		atid.port = aia.ai_termid.at_port;
143 		atid.machine = aia.ai_termid.at_addr[0];
144 		token = au_to_subject32(auid, geteuid(), getegid(),
145 		    getuid(), getgid(), pid, pid, &atid);
146 	} else
147 		token = au_to_subject_ex(auid, geteuid(), getegid(),
148 		    getuid(), getgid(), pid, pid, &aia.ai_termid);
149 	if (token == NULL) {
150 		syslog(LOG_AUTH | LOG_ERR,
151 		    "audit: unable to build subject token");
152 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
153 		errno = EPERM;
154 		return (-1);
155 	}
156 	if (au_write(afd, token) < 0) {
157 		error = errno;
158 		syslog(LOG_AUTH | LOG_ERR,
159 		    "audit: au_write failed: %s", strerror(errno));
160 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
161 		errno = error;
162 		return (-1);
163 	}
164 	if (fmt != NULL) {
165 		va_start(ap, fmt);
166 		(void) vsnprintf(text, MAX_AUDITSTRING_LEN, fmt, ap);
167 		va_end(ap);
168 		token = au_to_text(text);
169 		if (token == NULL) {
170 			syslog(LOG_AUTH | LOG_ERR,
171 			    "audit: failed to generate text token");
172 			(void) au_close(afd, AU_TO_NO_WRITE, au_event);
173 			errno = EPERM;
174 			return (-1);
175 		}
176 		if (au_write(afd, token) < 0) {
177 			error = errno;
178 			syslog(LOG_AUTH | LOG_ERR,
179 			    "audit: au_write failed: %s", strerror(errno));
180 			(void) au_close(afd, AU_TO_NO_WRITE, au_event);
181 			errno = error;
182 			return (-1);
183 		}
184 	}
185 	token = au_to_return32(au_errno_to_bsm(status), reterr);
186 	if (token == NULL) {
187 		syslog(LOG_AUTH | LOG_ERR,
188 		    "audit: unable to build return token");
189 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
190 		errno = EPERM;
191 		return (-1);
192 	}
193 	if (au_write(afd, token) < 0) {
194 		error = errno;
195 		syslog(LOG_AUTH | LOG_ERR,
196 		    "audit: au_write failed: %s", strerror(errno));
197 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
198 		errno = error;
199 		return (-1);
200 	}
201 	if (au_close(afd, AU_TO_WRITE, au_event) < 0) {
202 		error = errno;
203 		syslog(LOG_AUTH | LOG_ERR, "audit: record not committed");
204 		errno = error;
205 		return (-1);
206 	}
207 	return (0);
208 }
209 
210 int
211 audit_set_terminal_port(dev_t *p)
212 {
213 	struct stat st;
214 
215 	if (p == NULL)
216 		return (kAUBadParamErr);
217 
218 #ifdef NODEV
219 	*p = NODEV;
220 #else
221 	*p = -1;
222 #endif
223 
224 	/* for /usr/bin/login, try fstat() first */
225 	if (fstat(STDIN_FILENO, &st) != 0) {
226 		if (errno != EBADF) {
227 			syslog(LOG_ERR, "fstat() failed (%s)",
228 			    strerror(errno));
229 			return (kAUStatErr);
230 		}
231 		if (stat("/dev/console", &st) != 0) {
232 			syslog(LOG_ERR, "stat() failed (%s)",
233 			    strerror(errno));
234 			return (kAUStatErr);
235 		}
236 	}
237 	*p = st.st_rdev;
238 	return (kAUNoErr);
239 }
240 
241 int
242 audit_set_terminal_host(uint32_t *m)
243 {
244 
245 #ifdef KERN_HOSTID
246 	int name[2] = { CTL_KERN, KERN_HOSTID };
247 	size_t len;
248 
249 	if (m == NULL)
250 		return (kAUBadParamErr);
251 	*m = 0;
252 	len = sizeof(*m);
253 	if (sysctl(name, 2, m, &len, NULL, 0) != 0) {
254 		syslog(LOG_ERR, "sysctl() failed (%s)", strerror(errno));
255 		return (kAUSysctlErr);
256 	}
257 	return (kAUNoErr);
258 #else
259 	*m = -1;
260 	return (kAUNoErr);
261 #endif
262 }
263 
264 int
265 audit_set_terminal_id(au_tid_t *tid)
266 {
267 	dev_t port;
268 	int ret;
269 
270 	if (tid == NULL)
271 		return (kAUBadParamErr);
272 	if ((ret = audit_set_terminal_port(&port)) != kAUNoErr)
273 		return (ret);
274 	tid->port = port;
275 	return (audit_set_terminal_host(&tid->machine));
276 }
277 
278 /*
279  * This is OK for those callers who have only one token to write.  If you have
280  * multiple tokens that logically form part of the same audit record, you need
281  * to use the existing au_open()/au_write()/au_close() API:
282  *
283  * aufd = au_open();
284  * tok = au_to_random_token_1(...);
285  * au_write(aufd, tok);
286  * tok = au_to_random_token_2(...);
287  * au_write(aufd, tok);
288  * ...
289  * au_close(aufd, AU_TO_WRITE, AUE_your_event_type);
290  *
291  * Assumes, like all wrapper calls, that the caller has previously checked
292  * that auditing is enabled via the audit_get_state() call.
293  *
294  * XXX: Should be more robust against bad arguments.
295  */
296 int
297 audit_write(short event_code, token_t *subject, token_t *misctok, char retval,
298     int errcode)
299 {
300 	int aufd;
301 	char *func = "audit_write()";
302 	token_t *rettok;
303 
304 	if ((aufd = au_open()) == -1) {
305 		au_free_token(subject);
306 		au_free_token(misctok);
307 		syslog(LOG_ERR, "%s: au_open() failed", func);
308 		return (kAUOpenErr);
309 	}
310 
311 	/* Save subject. */
312 	if (subject && au_write(aufd, subject) == -1) {
313 		au_free_token(subject);
314 		au_free_token(misctok);
315 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
316 		syslog(LOG_ERR, "%s: write of subject failed", func);
317 		return (kAUWriteSubjectTokErr);
318 	}
319 
320 	/* Save the event-specific token. */
321 	if (misctok && au_write(aufd, misctok) == -1) {
322 		au_free_token(misctok);
323 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
324 		syslog(LOG_ERR, "%s: write of caller token failed", func);
325 		return (kAUWriteCallerTokErr);
326 	}
327 
328 	/* Tokenize and save the return value. */
329 	if ((rettok = au_to_return32(retval, errcode)) == NULL) {
330 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
331 		syslog(LOG_ERR, "%s: au_to_return32() failed", func);
332 		return (kAUMakeReturnTokErr);
333 	}
334 
335 	if (au_write(aufd, rettok) == -1) {
336 		au_free_token(rettok);
337 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
338 		syslog(LOG_ERR, "%s: write of return code failed", func);
339 		return (kAUWriteReturnTokErr);
340 	}
341 
342 	/*
343 	 * We assume the caller wouldn't have bothered with this
344 	 * function if it hadn't already decided to keep the record.
345 	 */
346 	if (au_close(aufd, AU_TO_WRITE, event_code) < 0) {
347 		syslog(LOG_ERR, "%s: au_close() failed", func);
348 		return (kAUCloseErr);
349 	}
350 
351 	return (kAUNoErr);
352 }
353 
354 /*
355  * Same caveats as audit_write().  In addition, this function explicitly
356  * assumes success; use audit_write_failure() on error.
357  */
358 int
359 audit_write_success(short event_code, token_t *tok, au_id_t auid, uid_t euid,
360     gid_t egid, uid_t ruid, gid_t rgid, pid_t pid, au_asid_t sid,
361     au_tid_t *tid)
362 {
363 	char *func = "audit_write_success()";
364 	token_t *subject = NULL;
365 
366 	/* Tokenize and save subject. */
367 	subject = au_to_subject32(auid, euid, egid, ruid, rgid, pid, sid,
368 	    tid);
369 	if (subject == NULL) {
370 		syslog(LOG_ERR, "%s: au_to_subject32() failed", func);
371 		return kAUMakeSubjectTokErr;
372 	}
373 
374 	return (audit_write(event_code, subject, tok, 0, 0));
375 }
376 
377 /*
378  * Same caveats as audit_write().  In addition, this function explicitly
379  * assumes success; use audit_write_failure_self() on error.
380  */
381 int
382 audit_write_success_self(short event_code, token_t *tok)
383 {
384 	token_t *subject;
385 	char *func = "audit_write_success_self()";
386 
387 	if ((subject = au_to_me()) == NULL) {
388 		syslog(LOG_ERR, "%s: au_to_me() failed", func);
389 		return (kAUMakeSubjectTokErr);
390 	}
391 
392 	return (audit_write(event_code, subject, tok, 0, 0));
393 }
394 
395 /*
396  * Same caveats as audit_write().  In addition, this function explicitly
397  * assumes failure; use audit_write_success() otherwise.
398  *
399  * XXX  This should let the caller pass an error return value rather than
400  * hard-coding -1.
401  */
402 int
403 audit_write_failure(short event_code, char *errmsg, int errcode, au_id_t auid,
404     uid_t euid, gid_t egid, uid_t ruid, gid_t rgid, pid_t pid, au_asid_t sid,
405     au_tid_t *tid)
406 {
407 	char *func = "audit_write_failure()";
408 	token_t *subject, *errtok;
409 
410 	subject = au_to_subject32(auid, euid, egid, ruid, rgid, pid, sid, tid);
411 	if (subject == NULL) {
412 		syslog(LOG_ERR, "%s: au_to_subject32() failed", func);
413 		return (kAUMakeSubjectTokErr);
414 	}
415 
416 	/* tokenize and save the error message */
417 	if ((errtok = au_to_text(errmsg)) == NULL) {
418 		au_free_token(subject);
419 		syslog(LOG_ERR, "%s: au_to_text() failed", func);
420 		return (kAUMakeTextTokErr);
421 	}
422 
423 	return (audit_write(event_code, subject, errtok, -1, errcode));
424 }
425 
426 /*
427  * Same caveats as audit_write().  In addition, this function explicitly
428  * assumes failure; use audit_write_success_self() otherwise.
429  *
430  * XXX  This should let the caller pass an error return value rather than
431  * hard-coding -1.
432  */
433 int
434 audit_write_failure_self(short event_code, char *errmsg, int errret)
435 {
436 	char *func = "audit_write_failure_self()";
437 	token_t *subject, *errtok;
438 
439 	if ((subject = au_to_me()) == NULL) {
440 		syslog(LOG_ERR, "%s: au_to_me() failed", func);
441 		return (kAUMakeSubjectTokErr);
442 	}
443 	/* tokenize and save the error message */
444 	if ((errtok = au_to_text(errmsg)) == NULL) {
445 		au_free_token(subject);
446 		syslog(LOG_ERR, "%s: au_to_text() failed", func);
447 		return (kAUMakeTextTokErr);
448 	}
449 	return (audit_write(event_code, subject, errtok, -1, errret));
450 }
451 
452 /*
453  * For auditing errors during login.  Such errors are implicitly
454  * non-attributable (i.e., not ascribable to any user).
455  *
456  * Assumes, like all wrapper calls, that the caller has previously checked
457  * that auditing is enabled via the audit_get_state() call.
458  */
459 int
460 audit_write_failure_na(short event_code, char *errmsg, int errret, uid_t euid,
461     uid_t egid, pid_t pid, au_tid_t *tid)
462 {
463 
464 	return (audit_write_failure(event_code, errmsg, errret, -1, euid,
465 	    egid, -1, -1, pid, -1, tid));
466 }
467 
468 /* END OF au_write() WRAPPERS */
469 
470 #ifdef __APPLE__
471 void
472 audit_token_to_au32(audit_token_t atoken, uid_t *auidp, uid_t *euidp,
473     gid_t *egidp, uid_t *ruidp, gid_t *rgidp, pid_t *pidp, au_asid_t *asidp,
474     au_tid_t *tidp)
475 {
476 
477 	if (auidp != NULL)
478 		*auidp = (uid_t)atoken.val[0];
479 	if (euidp != NULL)
480 		*euidp = (uid_t)atoken.val[1];
481 	if (egidp != NULL)
482 		*egidp = (gid_t)atoken.val[2];
483 	if (ruidp != NULL)
484 		*ruidp = (uid_t)atoken.val[3];
485 	if (rgidp != NULL)
486 		*rgidp = (gid_t)atoken.val[4];
487 	if (pidp != NULL)
488 		*pidp = (pid_t)atoken.val[5];
489 	if (asidp != NULL)
490 		*asidp = (au_asid_t)atoken.val[6];
491 	if (tidp != NULL) {
492 		audit_set_terminal_host(&tidp->machine);
493 		tidp->port = (dev_t)atoken.val[7];
494 	}
495 }
496 #endif /* !__APPLE__ */
497 
498 int
499 audit_get_cond(int *cond)
500 {
501 	int ret;
502 
503 	ret = auditon(A_GETCOND, cond, sizeof(*cond));
504 #ifdef A_OLDGETCOND
505 	if ((0 != ret) && EINVAL == errno) {
506 		long lcond = *cond;
507 
508 		ret = auditon(A_OLDGETCOND, &lcond, sizeof(lcond));
509 		*cond = (int)lcond;
510 	}
511 #endif
512 	return (ret);
513 }
514 
515 int
516 audit_set_cond(int *cond)
517 {
518 	int ret;
519 
520 	ret = auditon(A_SETCOND, cond, sizeof(*cond));
521 #ifdef A_OLDSETCOND
522 	if ((0 != ret) && (EINVAL == errno)) {
523 		long lcond = (long)*cond;
524 
525 		ret = auditon(A_OLDSETCOND, &lcond, sizeof(lcond));
526 		*cond = (int)lcond;
527 	}
528 #endif
529 	return (ret);
530 }
531 
532 int
533 audit_get_policy(int *policy)
534 {
535 	int ret;
536 
537 	ret = auditon(A_GETPOLICY, policy, sizeof(*policy));
538 #ifdef A_OLDGETPOLICY
539 	if ((0 != ret) && (EINVAL == errno)){
540 		long lpolicy = (long)*policy;
541 
542 		ret = auditon(A_OLDGETPOLICY, &lpolicy, sizeof(lpolicy));
543 		*policy = (int)lpolicy;
544 	}
545 #endif
546 	return (ret);
547 }
548 
549 int
550 audit_set_policy(int *policy)
551 {
552 	int ret;
553 
554 	ret = auditon(A_SETPOLICY, policy, sizeof(*policy));
555 #ifdef A_OLDSETPOLICY
556 	if ((0 != ret) && (EINVAL == errno)){
557 		long lpolicy = (long)*policy;
558 
559 		ret = auditon(A_OLDSETPOLICY, &lpolicy, sizeof(lpolicy));
560 		*policy = (int)lpolicy;
561 	}
562 #endif
563 	return (ret);
564 }
565 
566 int
567 audit_get_qctrl(au_qctrl_t *qctrl, size_t sz)
568 {
569 	int ret;
570 
571 	if (sizeof(*qctrl) != sz) {
572 		errno = EINVAL;
573 		return (-1);
574 	}
575 
576 	ret = auditon(A_GETQCTRL, qctrl, sizeof(*qctrl));
577 #ifdef A_OLDGETQCTRL
578 	if ((0 != ret) && (EINVAL == errno)){
579 		struct old_qctrl {
580 			size_t   oq_hiwater;
581 			size_t   oq_lowater;
582 			size_t   oq_bufsz;
583 			clock_t  oq_delay;
584 			int	 oq_minfree;
585 		} oq;
586 
587 		oq.oq_hiwater = (size_t)qctrl->aq_hiwater;
588 		oq.oq_lowater = (size_t)qctrl->aq_lowater;
589 		oq.oq_bufsz = (size_t)qctrl->aq_bufsz;
590 		oq.oq_delay = (clock_t)qctrl->aq_delay;
591 		oq.oq_minfree = qctrl->aq_minfree;
592 
593 		ret = auditon(A_OLDGETQCTRL, &oq, sizeof(oq));
594 
595 		qctrl->aq_hiwater = (int)oq.oq_hiwater;
596 		qctrl->aq_lowater = (int)oq.oq_lowater;
597 		qctrl->aq_bufsz = (int)oq.oq_bufsz;
598 		qctrl->aq_delay = (int)oq.oq_delay;
599 		qctrl->aq_minfree = oq.oq_minfree;
600 	}
601 #endif /* A_OLDGETQCTRL */
602 	return (ret);
603 }
604 
605 int
606 audit_set_qctrl(au_qctrl_t *qctrl, size_t sz)
607 {
608 	int ret;
609 
610 	if (sizeof(*qctrl) != sz) {
611 		errno = EINVAL;
612 		return (-1);
613 	}
614 
615 	ret = auditon(A_SETQCTRL, qctrl, sz);
616 #ifdef	A_OLDSETQCTRL
617 	if ((0 != ret) && (EINVAL == errno)) {
618 		struct old_qctrl {
619 			size_t   oq_hiwater;
620 			size_t   oq_lowater;
621 			size_t   oq_bufsz;
622 			clock_t  oq_delay;
623 			int	 oq_minfree;
624 		} oq;
625 
626 		oq.oq_hiwater = (size_t)qctrl->aq_hiwater;
627 		oq.oq_lowater = (size_t)qctrl->aq_lowater;
628 		oq.oq_bufsz = (size_t)qctrl->aq_bufsz;
629 		oq.oq_delay = (clock_t)qctrl->aq_delay;
630 		oq.oq_minfree = qctrl->aq_minfree;
631 
632 		ret = auditon(A_OLDSETQCTRL, &oq, sizeof(oq));
633 
634 		qctrl->aq_hiwater = (int)oq.oq_hiwater;
635 		qctrl->aq_lowater = (int)oq.oq_lowater;
636 		qctrl->aq_bufsz = (int)oq.oq_bufsz;
637 		qctrl->aq_delay = (int)oq.oq_delay;
638 		qctrl->aq_minfree = oq.oq_minfree;
639 	}
640 #endif /* A_OLDSETQCTRL */
641 	return (ret);
642 }
643 
644 int
645 audit_send_trigger(int *trigger)
646 {
647 
648 	return (auditon(A_SENDTRIGGER, trigger, sizeof(*trigger)));
649 }
650 
651 int
652 audit_get_kaudit(auditinfo_addr_t *aia, size_t sz)
653 {
654 
655 	if (sizeof(*aia) != sz) {
656 		errno = EINVAL;
657 		return (-1);
658 	}
659 
660 	return (auditon(A_GETKAUDIT, aia, sz));
661 }
662 
663 int
664 audit_set_kaudit(auditinfo_addr_t *aia, size_t sz)
665 {
666 
667 	if (sizeof(*aia) != sz) {
668 		errno = EINVAL;
669 		return (-1);
670 	}
671 
672 	return (auditon(A_SETKAUDIT, aia, sz));
673 }
674 
675 int
676 audit_get_class(au_evclass_map_t *evc_map, size_t sz)
677 {
678 
679 	if (sizeof(*evc_map) != sz) {
680 		errno = EINVAL;
681 		return (-1);
682 	}
683 
684 	return (auditon(A_GETCLASS, evc_map, sz));
685 }
686 
687 int
688 audit_set_class(au_evclass_map_t *evc_map, size_t sz)
689 {
690 
691 	if (sizeof(*evc_map) != sz) {
692 		errno = EINVAL;
693 		return (-1);
694 	}
695 
696 	return (auditon(A_SETCLASS, evc_map, sz));
697 }
698 
699 int
700 audit_get_event(au_evname_map_t *evn_map, size_t sz)
701 {
702 
703 	if (sizeof(*evn_map) != sz) {
704 		errno = EINVAL;
705 		return (-1);
706 	}
707 
708 	return (auditon(A_GETEVENT, evn_map, sz));
709 }
710 
711 int
712 audit_set_event(au_evname_map_t *evn_map, size_t sz)
713 {
714 
715 	if (sizeof(*evn_map) != sz) {
716 		errno = EINVAL;
717 		return (-1);
718 	}
719 
720 	return (auditon(A_SETEVENT, evn_map, sz));
721 }
722 
723 int
724 audit_get_kmask(au_mask_t *kmask, size_t sz)
725 {
726 	if (sizeof(*kmask) != sz) {
727 		errno = EINVAL;
728 		return (-1);
729 	}
730 
731 	return (auditon(A_GETKMASK, kmask, sz));
732 }
733 
734 int
735 audit_set_kmask(au_mask_t *kmask, size_t sz)
736 {
737 	if (sizeof(*kmask) != sz) {
738 		errno = EINVAL;
739 		return (-1);
740 	}
741 
742 	return (auditon(A_SETKMASK, kmask, sz));
743 }
744 
745 int
746 audit_get_fsize(au_fstat_t *fstat, size_t sz)
747 {
748 
749 	if (sizeof(*fstat) != sz) {
750 		errno = EINVAL;
751 		return (-1);
752 	}
753 
754 	return (auditon(A_GETFSIZE, fstat, sz));
755 }
756 
757 int
758 audit_set_fsize(au_fstat_t *fstat, size_t sz)
759 {
760 
761 	if (sizeof(*fstat) != sz) {
762 		errno = EINVAL;
763 		return (-1);
764 	}
765 
766 	return (auditon(A_SETFSIZE, fstat, sz));
767 }
768 
769 int
770 audit_set_pmask(auditpinfo_t *api, size_t sz)
771 {
772 
773 	if (sizeof(*api) != sz) {
774 		errno = EINVAL;
775 		return (-1);
776 	}
777 
778 	return (auditon(A_SETPMASK, api, sz));
779 }
780 
781 int
782 audit_get_pinfo(auditpinfo_t *api, size_t sz)
783 {
784 
785 	if (sizeof(*api) != sz) {
786 		errno = EINVAL;
787 		return (-1);
788 	}
789 
790 	return (auditon(A_GETPINFO, api, sz));
791 }
792 
793 int
794 audit_get_pinfo_addr(auditpinfo_addr_t *apia, size_t sz)
795 {
796 
797 	if (sizeof(*apia) != sz) {
798 		errno = EINVAL;
799 		return (-1);
800 	}
801 
802 	return (auditon(A_GETPINFO_ADDR, apia, sz));
803 }
804 
805 int
806 audit_get_sinfo_addr(auditinfo_addr_t *aia, size_t sz)
807 {
808 
809 	if (sizeof(*aia) != sz) {
810 		errno = EINVAL;
811 		return (-1);
812 	}
813 
814 	return (auditon(A_GETSINFO_ADDR, aia, sz));
815 }
816 
817 int
818 audit_get_stat(au_stat_t *stats, size_t sz)
819 {
820 
821 	if (sizeof(*stats) != sz) {
822 		errno = EINVAL;
823 		return (-1);
824 	}
825 
826 	return (auditon(A_GETSTAT, stats, sz));
827 }
828 
829 int
830 audit_set_stat(au_stat_t *stats, size_t sz)
831 {
832 
833 	if (sizeof(*stats) != sz) {
834 		errno = EINVAL;
835 		return (-1);
836 	}
837 
838 	return (auditon(A_GETSTAT, stats, sz));
839 }
840 
841 int
842 audit_get_cwd(char *path, size_t sz)
843 {
844 
845 	return (auditon(A_GETCWD, path, sz));
846 }
847 
848 int
849 audit_get_car(char *path, size_t sz)
850 {
851 
852 	return (auditon(A_GETCAR, path, sz));
853 }
854