xref: /freebsd/contrib/openbsm/libbsm/bsm_wrappers.c (revision 38f0b757fd84d17d0fc24739a7cda160c4516d81)
1 /*-
2  * Copyright (c) 2004-2009 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  * $P4: //depot/projects/trustedbsd/openbsm/libbsm/bsm_wrappers.c#32 $
30  */
31 
32 #ifdef __APPLE__
33 #define	_SYS_AUDIT_H		/* Prevent include of sys/audit.h. */
34 #endif
35 
36 #include <sys/param.h>
37 #include <sys/stat.h>
38 
39 #ifdef __APPLE__
40 #include <sys/queue.h>		/* Our bsm/audit.h doesn't include queue.h. */
41 #endif
42 
43 #include <sys/sysctl.h>
44 
45 #include <bsm/libbsm.h>
46 
47 #include <unistd.h>
48 #include <syslog.h>
49 #include <stdarg.h>
50 #include <string.h>
51 #include <errno.h>
52 
53 /* These are not advertised in libbsm.h */
54 int audit_set_terminal_port(dev_t *p);
55 int audit_set_terminal_host(uint32_t *m);
56 
57 /*
58  * General purpose audit submission mechanism for userspace.
59  */
60 int
61 audit_submit(short au_event, au_id_t auid, char status,
62     int reterr, const char *fmt, ...)
63 {
64 	char text[MAX_AUDITSTRING_LEN];
65 	token_t *token;
66 	int acond;
67 	va_list ap;
68 	pid_t pid;
69 	int error, afd, subj_ex;
70 	struct auditinfo ai;
71 	struct auditinfo_addr aia;
72 	au_tid_t atid;
73 
74 	if (audit_get_cond(&acond) != 0) {
75 		/*
76 		 * If auditon(2) returns ENOSYS, then audit has not been
77 		 * compiled into the kernel, so just return.
78 		 */
79 		if (errno == ENOSYS)
80 			return (0);
81 		error = errno;
82 		syslog(LOG_AUTH | LOG_ERR, "audit: auditon failed: %s",
83 		    strerror(errno));
84 		errno = error;
85 		return (-1);
86 	}
87 	if (acond == AUC_NOAUDIT)
88 		return (0);
89 	afd = au_open();
90 	if (afd < 0) {
91 		error = errno;
92 		syslog(LOG_AUTH | LOG_ERR, "audit: au_open failed: %s",
93 		    strerror(errno));
94 		errno = error;
95 		return (-1);
96 	}
97 	/*
98 	 * Try to use getaudit_addr(2) first.  If this kernel does not support
99 	 * it, then fall back on to getaudit(2).
100 	 */
101 	subj_ex = 0;
102 	error = getaudit_addr(&aia, sizeof(aia));
103 	if (error < 0 && errno == ENOSYS) {
104 		error = getaudit(&ai);
105 		if (error < 0) {
106 			error = errno;
107 			syslog(LOG_AUTH | LOG_ERR, "audit: getaudit failed: %s",
108 			    strerror(errno));
109 			errno = error;
110 			return (-1);
111 		}
112 		/*
113 		 * Convert this auditinfo_t to an auditinfo_addr_t to make the
114 		 * following code less complicated wrt to preselection and
115 		 * subject token generation.
116 		 */
117 		aia.ai_auid = ai.ai_auid;
118 		aia.ai_mask = ai.ai_mask;
119 		aia.ai_asid = ai.ai_asid;
120 		aia.ai_termid.at_type = AU_IPv4;
121 		aia.ai_termid.at_addr[0] = ai.ai_termid.machine;
122 		aia.ai_termid.at_port = ai.ai_termid.port;
123 	} else if (error < 0) {
124 		error = errno;
125 		syslog(LOG_AUTH | LOG_ERR, "audit: getaudit_addr failed: %s",
126 		    strerror(errno));
127 		errno = error;
128 		return (-1);
129 	}
130 	/*
131 	 * NB: We should be performing pre-selection here now that we have the
132 	 * masks for this process.
133 	 */
134 	if (aia.ai_termid.at_type == AU_IPv6)
135 		subj_ex = 1;
136 	pid = getpid();
137 	if (subj_ex == 0) {
138 		atid.port = aia.ai_termid.at_port;
139 		atid.machine = aia.ai_termid.at_addr[0];
140 		token = au_to_subject32(auid, geteuid(), getegid(),
141 		    getuid(), getgid(), pid, pid, &atid);
142 	} else
143 		token = au_to_subject_ex(auid, geteuid(), getegid(),
144 		    getuid(), getgid(), pid, pid, &aia.ai_termid);
145 	if (token == NULL) {
146 		syslog(LOG_AUTH | LOG_ERR,
147 		    "audit: unable to build subject token");
148 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
149 		errno = EPERM;
150 		return (-1);
151 	}
152 	if (au_write(afd, token) < 0) {
153 		error = errno;
154 		syslog(LOG_AUTH | LOG_ERR,
155 		    "audit: au_write failed: %s", strerror(errno));
156 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
157 		errno = error;
158 		return (-1);
159 	}
160 	if (fmt != NULL) {
161 		va_start(ap, fmt);
162 		(void) vsnprintf(text, MAX_AUDITSTRING_LEN, fmt, ap);
163 		va_end(ap);
164 		token = au_to_text(text);
165 		if (token == NULL) {
166 			syslog(LOG_AUTH | LOG_ERR,
167 			    "audit: failed to generate text token");
168 			(void) au_close(afd, AU_TO_NO_WRITE, au_event);
169 			errno = EPERM;
170 			return (-1);
171 		}
172 		if (au_write(afd, token) < 0) {
173 			error = errno;
174 			syslog(LOG_AUTH | LOG_ERR,
175 			    "audit: au_write failed: %s", strerror(errno));
176 			(void) au_close(afd, AU_TO_NO_WRITE, au_event);
177 			errno = error;
178 			return (-1);
179 		}
180 	}
181 	token = au_to_return32(au_errno_to_bsm(status), reterr);
182 	if (token == NULL) {
183 		syslog(LOG_AUTH | LOG_ERR,
184 		    "audit: unable to build return token");
185 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
186 		errno = EPERM;
187 		return (-1);
188 	}
189 	if (au_write(afd, token) < 0) {
190 		error = errno;
191 		syslog(LOG_AUTH | LOG_ERR,
192 		    "audit: au_write failed: %s", strerror(errno));
193 		(void) au_close(afd, AU_TO_NO_WRITE, au_event);
194 		errno = error;
195 		return (-1);
196 	}
197 	if (au_close(afd, AU_TO_WRITE, au_event) < 0) {
198 		error = errno;
199 		syslog(LOG_AUTH | LOG_ERR, "audit: record not committed");
200 		errno = error;
201 		return (-1);
202 	}
203 	return (0);
204 }
205 
206 int
207 audit_set_terminal_port(dev_t *p)
208 {
209 	struct stat st;
210 
211 	if (p == NULL)
212 		return (kAUBadParamErr);
213 
214 #ifdef NODEV
215 	*p = NODEV;
216 #else
217 	*p = -1;
218 #endif
219 
220 	/* for /usr/bin/login, try fstat() first */
221 	if (fstat(STDIN_FILENO, &st) != 0) {
222 		if (errno != EBADF) {
223 			syslog(LOG_ERR, "fstat() failed (%s)",
224 			    strerror(errno));
225 			return (kAUStatErr);
226 		}
227 		if (stat("/dev/console", &st) != 0) {
228 			syslog(LOG_ERR, "stat() failed (%s)",
229 			    strerror(errno));
230 			return (kAUStatErr);
231 		}
232 	}
233 	*p = st.st_rdev;
234 	return (kAUNoErr);
235 }
236 
237 int
238 audit_set_terminal_host(uint32_t *m)
239 {
240 
241 #ifdef KERN_HOSTID
242 	int name[2] = { CTL_KERN, KERN_HOSTID };
243 	size_t len;
244 
245 	if (m == NULL)
246 		return (kAUBadParamErr);
247 	*m = 0;
248 	len = sizeof(*m);
249 	if (sysctl(name, 2, m, &len, NULL, 0) != 0) {
250 		syslog(LOG_ERR, "sysctl() failed (%s)", strerror(errno));
251 		return (kAUSysctlErr);
252 	}
253 	return (kAUNoErr);
254 #else
255 	*m = -1;
256 	return (kAUNoErr);
257 #endif
258 }
259 
260 int
261 audit_set_terminal_id(au_tid_t *tid)
262 {
263 	int ret;
264 
265 	if (tid == NULL)
266 		return (kAUBadParamErr);
267 	if ((ret = audit_set_terminal_port(&tid->port)) != kAUNoErr)
268 		return (ret);
269 	return (audit_set_terminal_host(&tid->machine));
270 }
271 
272 /*
273  * This is OK for those callers who have only one token to write.  If you have
274  * multiple tokens that logically form part of the same audit record, you need
275  * to use the existing au_open()/au_write()/au_close() API:
276  *
277  * aufd = au_open();
278  * tok = au_to_random_token_1(...);
279  * au_write(aufd, tok);
280  * tok = au_to_random_token_2(...);
281  * au_write(aufd, tok);
282  * ...
283  * au_close(aufd, AU_TO_WRITE, AUE_your_event_type);
284  *
285  * Assumes, like all wrapper calls, that the caller has previously checked
286  * that auditing is enabled via the audit_get_state() call.
287  *
288  * XXX: Should be more robust against bad arguments.
289  */
290 int
291 audit_write(short event_code, token_t *subject, token_t *misctok, char retval,
292     int errcode)
293 {
294 	int aufd;
295 	char *func = "audit_write()";
296 	token_t *rettok;
297 
298 	if ((aufd = au_open()) == -1) {
299 		au_free_token(subject);
300 		au_free_token(misctok);
301 		syslog(LOG_ERR, "%s: au_open() failed", func);
302 		return (kAUOpenErr);
303 	}
304 
305 	/* Save subject. */
306 	if (subject && au_write(aufd, subject) == -1) {
307 		au_free_token(subject);
308 		au_free_token(misctok);
309 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
310 		syslog(LOG_ERR, "%s: write of subject failed", func);
311 		return (kAUWriteSubjectTokErr);
312 	}
313 
314 	/* Save the event-specific token. */
315 	if (misctok && au_write(aufd, misctok) == -1) {
316 		au_free_token(misctok);
317 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
318 		syslog(LOG_ERR, "%s: write of caller token failed", func);
319 		return (kAUWriteCallerTokErr);
320 	}
321 
322 	/* Tokenize and save the return value. */
323 	if ((rettok = au_to_return32(retval, errcode)) == NULL) {
324 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
325 		syslog(LOG_ERR, "%s: au_to_return32() failed", func);
326 		return (kAUMakeReturnTokErr);
327 	}
328 
329 	if (au_write(aufd, rettok) == -1) {
330 		au_free_token(rettok);
331 		(void)au_close(aufd, AU_TO_NO_WRITE, event_code);
332 		syslog(LOG_ERR, "%s: write of return code failed", func);
333 		return (kAUWriteReturnTokErr);
334 	}
335 
336 	/*
337 	 * We assume the caller wouldn't have bothered with this
338 	 * function if it hadn't already decided to keep the record.
339 	 */
340 	if (au_close(aufd, AU_TO_WRITE, event_code) < 0) {
341 		syslog(LOG_ERR, "%s: au_close() failed", func);
342 		return (kAUCloseErr);
343 	}
344 
345 	return (kAUNoErr);
346 }
347 
348 /*
349  * Same caveats as audit_write().  In addition, this function explicitly
350  * assumes success; use audit_write_failure() on error.
351  */
352 int
353 audit_write_success(short event_code, token_t *tok, au_id_t auid, uid_t euid,
354     gid_t egid, uid_t ruid, gid_t rgid, pid_t pid, au_asid_t sid,
355     au_tid_t *tid)
356 {
357 	char *func = "audit_write_success()";
358 	token_t *subject = NULL;
359 
360 	/* Tokenize and save subject. */
361 	subject = au_to_subject32(auid, euid, egid, ruid, rgid, pid, sid,
362 	    tid);
363 	if (subject == NULL) {
364 		syslog(LOG_ERR, "%s: au_to_subject32() failed", func);
365 		return kAUMakeSubjectTokErr;
366 	}
367 
368 	return (audit_write(event_code, subject, tok, 0, 0));
369 }
370 
371 /*
372  * Same caveats as audit_write().  In addition, this function explicitly
373  * assumes success; use audit_write_failure_self() on error.
374  */
375 int
376 audit_write_success_self(short event_code, token_t *tok)
377 {
378 	token_t *subject;
379 	char *func = "audit_write_success_self()";
380 
381 	if ((subject = au_to_me()) == NULL) {
382 		syslog(LOG_ERR, "%s: au_to_me() failed", func);
383 		return (kAUMakeSubjectTokErr);
384 	}
385 
386 	return (audit_write(event_code, subject, tok, 0, 0));
387 }
388 
389 /*
390  * Same caveats as audit_write().  In addition, this function explicitly
391  * assumes failure; use audit_write_success() otherwise.
392  *
393  * XXX  This should let the caller pass an error return value rather than
394  * hard-coding -1.
395  */
396 int
397 audit_write_failure(short event_code, char *errmsg, int errcode, au_id_t auid,
398     uid_t euid, gid_t egid, uid_t ruid, gid_t rgid, pid_t pid, au_asid_t sid,
399     au_tid_t *tid)
400 {
401 	char *func = "audit_write_failure()";
402 	token_t *subject, *errtok;
403 
404 	subject = au_to_subject32(auid, euid, egid, ruid, rgid, pid, sid, tid);
405 	if (subject == NULL) {
406 		syslog(LOG_ERR, "%s: au_to_subject32() failed", func);
407 		return (kAUMakeSubjectTokErr);
408 	}
409 
410 	/* tokenize and save the error message */
411 	if ((errtok = au_to_text(errmsg)) == NULL) {
412 		au_free_token(subject);
413 		syslog(LOG_ERR, "%s: au_to_text() failed", func);
414 		return (kAUMakeTextTokErr);
415 	}
416 
417 	return (audit_write(event_code, subject, errtok, -1, errcode));
418 }
419 
420 /*
421  * Same caveats as audit_write().  In addition, this function explicitly
422  * assumes failure; use audit_write_success_self() otherwise.
423  *
424  * XXX  This should let the caller pass an error return value rather than
425  * hard-coding -1.
426  */
427 int
428 audit_write_failure_self(short event_code, char *errmsg, int errret)
429 {
430 	char *func = "audit_write_failure_self()";
431 	token_t *subject, *errtok;
432 
433 	if ((subject = au_to_me()) == NULL) {
434 		syslog(LOG_ERR, "%s: au_to_me() failed", func);
435 		return (kAUMakeSubjectTokErr);
436 	}
437 	/* tokenize and save the error message */
438 	if ((errtok = au_to_text(errmsg)) == NULL) {
439 		au_free_token(subject);
440 		syslog(LOG_ERR, "%s: au_to_text() failed", func);
441 		return (kAUMakeTextTokErr);
442 	}
443 	return (audit_write(event_code, subject, errtok, -1, errret));
444 }
445 
446 /*
447  * For auditing errors during login.  Such errors are implicitly
448  * non-attributable (i.e., not ascribable to any user).
449  *
450  * Assumes, like all wrapper calls, that the caller has previously checked
451  * that auditing is enabled via the audit_get_state() call.
452  */
453 int
454 audit_write_failure_na(short event_code, char *errmsg, int errret, uid_t euid,
455     uid_t egid, pid_t pid, au_tid_t *tid)
456 {
457 
458 	return (audit_write_failure(event_code, errmsg, errret, -1, euid,
459 	    egid, -1, -1, pid, -1, tid));
460 }
461 
462 /* END OF au_write() WRAPPERS */
463 
464 #ifdef __APPLE__
465 void
466 audit_token_to_au32(audit_token_t atoken, uid_t *auidp, uid_t *euidp,
467     gid_t *egidp, uid_t *ruidp, gid_t *rgidp, pid_t *pidp, au_asid_t *asidp,
468     au_tid_t *tidp)
469 {
470 
471 	if (auidp != NULL)
472 		*auidp = (uid_t)atoken.val[0];
473 	if (euidp != NULL)
474 		*euidp = (uid_t)atoken.val[1];
475 	if (egidp != NULL)
476 		*egidp = (gid_t)atoken.val[2];
477 	if (ruidp != NULL)
478 		*ruidp = (uid_t)atoken.val[3];
479 	if (rgidp != NULL)
480 		*rgidp = (gid_t)atoken.val[4];
481 	if (pidp != NULL)
482 		*pidp = (pid_t)atoken.val[5];
483 	if (asidp != NULL)
484 		*asidp = (au_asid_t)atoken.val[6];
485 	if (tidp != NULL) {
486 		audit_set_terminal_host(&tidp->machine);
487 		tidp->port = (dev_t)atoken.val[7];
488 	}
489 }
490 #endif /* !__APPLE__ */
491 
492 int
493 audit_get_cond(int *cond)
494 {
495 	int ret;
496 
497 	ret = auditon(A_GETCOND, cond, sizeof(*cond));
498 #ifdef A_OLDGETCOND
499 	if ((0 != ret) && EINVAL == errno) {
500 		long lcond = *cond;
501 
502 		ret = auditon(A_OLDGETCOND, &lcond, sizeof(lcond));
503 		*cond = (int)lcond;
504 	}
505 #endif
506 	return (ret);
507 }
508 
509 int
510 audit_set_cond(int *cond)
511 {
512 	int ret;
513 
514 	ret = auditon(A_SETCOND, cond, sizeof(*cond));
515 #ifdef A_OLDSETCOND
516 	if ((0 != ret) && (EINVAL == errno)) {
517 		long lcond = (long)*cond;
518 
519 		ret = auditon(A_OLDSETCOND, &lcond, sizeof(lcond));
520 		*cond = (int)lcond;
521 	}
522 #endif
523 	return (ret);
524 }
525 
526 int
527 audit_get_policy(int *policy)
528 {
529 	int ret;
530 
531 	ret = auditon(A_GETPOLICY, policy, sizeof(*policy));
532 #ifdef A_OLDGETPOLICY
533 	if ((0 != ret) && (EINVAL == errno)){
534 		long lpolicy = (long)*policy;
535 
536 		ret = auditon(A_OLDGETPOLICY, &lpolicy, sizeof(lpolicy));
537 		*policy = (int)lpolicy;
538 	}
539 #endif
540 	return (ret);
541 }
542 
543 int
544 audit_set_policy(int *policy)
545 {
546 	int ret;
547 
548 	ret = auditon(A_SETPOLICY, policy, sizeof(*policy));
549 #ifdef A_OLDSETPOLICY
550 	if ((0 != ret) && (EINVAL == errno)){
551 		long lpolicy = (long)*policy;
552 
553 		ret = auditon(A_OLDSETPOLICY, &lpolicy, sizeof(lpolicy));
554 		*policy = (int)lpolicy;
555 	}
556 #endif
557 	return (ret);
558 }
559 
560 int
561 audit_get_qctrl(au_qctrl_t *qctrl, size_t sz)
562 {
563 	int ret;
564 
565 	if (sizeof(*qctrl) != sz) {
566 		errno = EINVAL;
567 		return (-1);
568 	}
569 
570 	ret = auditon(A_GETQCTRL, qctrl, sizeof(*qctrl));
571 #ifdef A_OLDGETQCTRL
572 	if ((0 != ret) && (EINVAL == errno)){
573 		struct old_qctrl {
574 			size_t   oq_hiwater;
575 			size_t   oq_lowater;
576 			size_t   oq_bufsz;
577 			clock_t  oq_delay;
578 			int	 oq_minfree;
579 		} oq;
580 
581 		oq.oq_hiwater = (size_t)qctrl->aq_hiwater;
582 		oq.oq_lowater = (size_t)qctrl->aq_lowater;
583 		oq.oq_bufsz = (size_t)qctrl->aq_bufsz;
584 		oq.oq_delay = (clock_t)qctrl->aq_delay;
585 		oq.oq_minfree = qctrl->aq_minfree;
586 
587 		ret = auditon(A_OLDGETQCTRL, &oq, sizeof(oq));
588 
589 		qctrl->aq_hiwater = (int)oq.oq_hiwater;
590 		qctrl->aq_lowater = (int)oq.oq_lowater;
591 		qctrl->aq_bufsz = (int)oq.oq_bufsz;
592 		qctrl->aq_delay = (int)oq.oq_delay;
593 		qctrl->aq_minfree = oq.oq_minfree;
594 	}
595 #endif /* A_OLDGETQCTRL */
596 	return (ret);
597 }
598 
599 int
600 audit_set_qctrl(au_qctrl_t *qctrl, size_t sz)
601 {
602 	int ret;
603 
604 	if (sizeof(*qctrl) != sz) {
605 		errno = EINVAL;
606 		return (-1);
607 	}
608 
609 	ret = auditon(A_SETQCTRL, qctrl, sz);
610 #ifdef	A_OLDSETQCTRL
611 	if ((0 != ret) && (EINVAL == errno)) {
612 		struct old_qctrl {
613 			size_t   oq_hiwater;
614 			size_t   oq_lowater;
615 			size_t   oq_bufsz;
616 			clock_t  oq_delay;
617 			int	 oq_minfree;
618 		} oq;
619 
620 		oq.oq_hiwater = (size_t)qctrl->aq_hiwater;
621 		oq.oq_lowater = (size_t)qctrl->aq_lowater;
622 		oq.oq_bufsz = (size_t)qctrl->aq_bufsz;
623 		oq.oq_delay = (clock_t)qctrl->aq_delay;
624 		oq.oq_minfree = qctrl->aq_minfree;
625 
626 		ret = auditon(A_OLDSETQCTRL, &oq, sizeof(oq));
627 
628 		qctrl->aq_hiwater = (int)oq.oq_hiwater;
629 		qctrl->aq_lowater = (int)oq.oq_lowater;
630 		qctrl->aq_bufsz = (int)oq.oq_bufsz;
631 		qctrl->aq_delay = (int)oq.oq_delay;
632 		qctrl->aq_minfree = oq.oq_minfree;
633 	}
634 #endif /* A_OLDSETQCTRL */
635 	return (ret);
636 }
637 
638 int
639 audit_send_trigger(int *trigger)
640 {
641 
642 	return (auditon(A_SENDTRIGGER, trigger, sizeof(*trigger)));
643 }
644 
645 int
646 audit_get_kaudit(auditinfo_addr_t *aia, size_t sz)
647 {
648 
649 	if (sizeof(*aia) != sz) {
650 		errno = EINVAL;
651 		return (-1);
652 	}
653 
654 	return (auditon(A_GETKAUDIT, aia, sz));
655 }
656 
657 int
658 audit_set_kaudit(auditinfo_addr_t *aia, size_t sz)
659 {
660 
661 	if (sizeof(*aia) != sz) {
662 		errno = EINVAL;
663 		return (-1);
664 	}
665 
666 	return (auditon(A_SETKAUDIT, aia, sz));
667 }
668 
669 int
670 audit_get_class(au_evclass_map_t *evc_map, size_t sz)
671 {
672 
673 	if (sizeof(*evc_map) != sz) {
674 		errno = EINVAL;
675 		return (-1);
676 	}
677 
678 	return (auditon(A_GETCLASS, evc_map, sz));
679 }
680 
681 int
682 audit_set_class(au_evclass_map_t *evc_map, size_t sz)
683 {
684 
685 	if (sizeof(*evc_map) != sz) {
686 		errno = EINVAL;
687 		return (-1);
688 	}
689 
690 	return (auditon(A_SETCLASS, evc_map, sz));
691 }
692 
693 int
694 audit_get_kmask(au_mask_t *kmask, size_t sz)
695 {
696 	if (sizeof(*kmask) != sz) {
697 		errno = EINVAL;
698 		return (-1);
699 	}
700 
701 	return (auditon(A_GETKMASK, kmask, sz));
702 }
703 
704 int
705 audit_set_kmask(au_mask_t *kmask, size_t sz)
706 {
707 	if (sizeof(*kmask) != sz) {
708 		errno = EINVAL;
709 		return (-1);
710 	}
711 
712 	return (auditon(A_SETKMASK, kmask, sz));
713 }
714 
715 int
716 audit_get_fsize(au_fstat_t *fstat, size_t sz)
717 {
718 
719 	if (sizeof(*fstat) != sz) {
720 		errno = EINVAL;
721 		return (-1);
722 	}
723 
724 	return (auditon(A_GETFSIZE, fstat, sz));
725 }
726 
727 int
728 audit_set_fsize(au_fstat_t *fstat, size_t sz)
729 {
730 
731 	if (sizeof(*fstat) != sz) {
732 		errno = EINVAL;
733 		return (-1);
734 	}
735 
736 	return (auditon(A_SETFSIZE, fstat, sz));
737 }
738 
739 int
740 audit_set_pmask(auditpinfo_t *api, size_t sz)
741 {
742 
743 	if (sizeof(*api) != sz) {
744 		errno = EINVAL;
745 		return (-1);
746 	}
747 
748 	return (auditon(A_SETPMASK, api, sz));
749 }
750 
751 int
752 audit_get_pinfo(auditpinfo_t *api, size_t sz)
753 {
754 
755 	if (sizeof(*api) != sz) {
756 		errno = EINVAL;
757 		return (-1);
758 	}
759 
760 	return (auditon(A_GETPINFO, api, sz));
761 }
762 
763 int
764 audit_get_pinfo_addr(auditpinfo_addr_t *apia, size_t sz)
765 {
766 
767 	if (sizeof(*apia) != sz) {
768 		errno = EINVAL;
769 		return (-1);
770 	}
771 
772 	return (auditon(A_GETPINFO_ADDR, apia, sz));
773 }
774 
775 int
776 audit_get_sinfo_addr(auditinfo_addr_t *aia, size_t sz)
777 {
778 
779 	if (sizeof(*aia) != sz) {
780 		errno = EINVAL;
781 		return (-1);
782 	}
783 
784 	return (auditon(A_GETSINFO_ADDR, aia, sz));
785 }
786 
787 int
788 audit_get_stat(au_stat_t *stats, size_t sz)
789 {
790 
791 	if (sizeof(*stats) != sz) {
792 		errno = EINVAL;
793 		return (-1);
794 	}
795 
796 	return (auditon(A_GETSTAT, stats, sz));
797 }
798 
799 int
800 audit_set_stat(au_stat_t *stats, size_t sz)
801 {
802 
803 	if (sizeof(*stats) != sz) {
804 		errno = EINVAL;
805 		return (-1);
806 	}
807 
808 	return (auditon(A_GETSTAT, stats, sz));
809 }
810 
811 int
812 audit_get_cwd(char *path, size_t sz)
813 {
814 
815 	return (auditon(A_GETCWD, path, sz));
816 }
817 
818 int
819 audit_get_car(char *path, size_t sz)
820 {
821 
822 	return (auditon(A_GETCAR, path, sz));
823 }
824