xref: /illumos-gate/usr/src/uts/common/c2/adr.c (revision 92402265)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*92402265SMarek Pospisil  * Common Development and Distribution License (the "License").
6*92402265SMarek Pospisil  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
217c478bd9Sstevel@tonic-gate /*
22*92402265SMarek Pospisil  * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
237c478bd9Sstevel@tonic-gate  */
247c478bd9Sstevel@tonic-gate 
257c478bd9Sstevel@tonic-gate /*
267c478bd9Sstevel@tonic-gate  * Adr memory based encoding
277c478bd9Sstevel@tonic-gate  */
287c478bd9Sstevel@tonic-gate 
297c478bd9Sstevel@tonic-gate #include <sys/feature_tests.h>
307c478bd9Sstevel@tonic-gate 
317c478bd9Sstevel@tonic-gate #pragma weak adr_ushort = adr_short
327c478bd9Sstevel@tonic-gate #pragma weak adr_uint32 = adr_int32
337c478bd9Sstevel@tonic-gate #pragma weak adr_uint64 = adr_int64
347c478bd9Sstevel@tonic-gate #pragma weak adr_getushort = adr_getshort
357c478bd9Sstevel@tonic-gate #pragma weak adr_getuint32 = adr_getint32
367c478bd9Sstevel@tonic-gate #pragma weak adr_getuint64 = adr_getint64
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate #include <sys/types.h>
397c478bd9Sstevel@tonic-gate #include <sys/t_lock.h>
407c478bd9Sstevel@tonic-gate #include <sys/systm.h>
417c478bd9Sstevel@tonic-gate #include <sys/mutex.h>
427c478bd9Sstevel@tonic-gate #include <sys/thread.h>
437c478bd9Sstevel@tonic-gate #include <c2/audit.h>
447c478bd9Sstevel@tonic-gate #include <c2/audit_kernel.h>
457c478bd9Sstevel@tonic-gate #include <c2/audit_record.h>
467c478bd9Sstevel@tonic-gate 
477c478bd9Sstevel@tonic-gate void
487c478bd9Sstevel@tonic-gate adr_start(adr_t *adr, char *p)
497c478bd9Sstevel@tonic-gate {
507c478bd9Sstevel@tonic-gate 	adr->adr_stream = p;
517c478bd9Sstevel@tonic-gate 	adr->adr_now = p;
527c478bd9Sstevel@tonic-gate }
537c478bd9Sstevel@tonic-gate 
547c478bd9Sstevel@tonic-gate int
557c478bd9Sstevel@tonic-gate adr_count(adr_t *adr)
567c478bd9Sstevel@tonic-gate {
577c478bd9Sstevel@tonic-gate 	return ((int)((uintptr_t)adr->adr_now - (uintptr_t)adr->adr_stream));
587c478bd9Sstevel@tonic-gate }
597c478bd9Sstevel@tonic-gate 
607c478bd9Sstevel@tonic-gate 
617c478bd9Sstevel@tonic-gate /*
627c478bd9Sstevel@tonic-gate  * adr_char - pull out characters
637c478bd9Sstevel@tonic-gate  */
647c478bd9Sstevel@tonic-gate void
657c478bd9Sstevel@tonic-gate adr_char(adr_t *adr, char *cp, int count)
667c478bd9Sstevel@tonic-gate {
677c478bd9Sstevel@tonic-gate 	while (count-- > 0)
687c478bd9Sstevel@tonic-gate 		*adr->adr_now++ = *cp++;
697c478bd9Sstevel@tonic-gate }
707c478bd9Sstevel@tonic-gate 
717c478bd9Sstevel@tonic-gate /*
727c478bd9Sstevel@tonic-gate  * adr_short - pull out shorts
737c478bd9Sstevel@tonic-gate  */
747c478bd9Sstevel@tonic-gate void
757c478bd9Sstevel@tonic-gate adr_short(adr_t *adr, short *sp, int count)
767c478bd9Sstevel@tonic-gate {
777c478bd9Sstevel@tonic-gate 
787c478bd9Sstevel@tonic-gate 	for (; count-- > 0; sp++) {
797c478bd9Sstevel@tonic-gate 		*adr->adr_now++ = (char)((*sp >> (int)8) & 0x00ff);
807c478bd9Sstevel@tonic-gate 		*adr->adr_now++ = (char)(*sp & 0x00ff);
817c478bd9Sstevel@tonic-gate 	}
827c478bd9Sstevel@tonic-gate }
837c478bd9Sstevel@tonic-gate 
847c478bd9Sstevel@tonic-gate /*
857c478bd9Sstevel@tonic-gate  * adr_int32 - pull out int32
867c478bd9Sstevel@tonic-gate  */
877c478bd9Sstevel@tonic-gate void
887c478bd9Sstevel@tonic-gate adr_int32(adr_t *adr, int32_t *lp, int count)
897c478bd9Sstevel@tonic-gate {
907c478bd9Sstevel@tonic-gate 	int i;		/* index for counting */
917c478bd9Sstevel@tonic-gate 	int32_t l;		/* value for shifting */
927c478bd9Sstevel@tonic-gate 
937c478bd9Sstevel@tonic-gate 	for (; count-- > 0; lp++) {
947c478bd9Sstevel@tonic-gate 		for (i = 0, l = *lp; i < 4; i++) {
957c478bd9Sstevel@tonic-gate 			*adr->adr_now++ = (char)((l & (int32_t)0xff000000) >>
96*92402265SMarek Pospisil 			    (int)24);
977c478bd9Sstevel@tonic-gate 			l <<= (int)8;
987c478bd9Sstevel@tonic-gate 		}
997c478bd9Sstevel@tonic-gate 	}
1007c478bd9Sstevel@tonic-gate }
1017c478bd9Sstevel@tonic-gate 
1027c478bd9Sstevel@tonic-gate /*
1037c478bd9Sstevel@tonic-gate  * adr_int64 - pull out int64
1047c478bd9Sstevel@tonic-gate  */
1057c478bd9Sstevel@tonic-gate void
1067c478bd9Sstevel@tonic-gate adr_int64(adr_t *adr, int64_t *lp, int count)
1077c478bd9Sstevel@tonic-gate {
1087c478bd9Sstevel@tonic-gate 	int i;		/* index for counting */
1097c478bd9Sstevel@tonic-gate 	int64_t l;	/* value for shifting */
1107c478bd9Sstevel@tonic-gate 
1117c478bd9Sstevel@tonic-gate 	for (; count-- > 0; lp++) {
1127c478bd9Sstevel@tonic-gate 		for (i = 0, l = *lp; i < 8; i++) {
113*92402265SMarek Pospisil 			*adr->adr_now++ =
114*92402265SMarek Pospisil 			    (char)((l & (int64_t)0xff00000000000000) >>
115*92402265SMarek Pospisil 			    (int)56);
1167c478bd9Sstevel@tonic-gate 			l <<= (int)8;
1177c478bd9Sstevel@tonic-gate 		}
1187c478bd9Sstevel@tonic-gate 	}
1197c478bd9Sstevel@tonic-gate }
1207c478bd9Sstevel@tonic-gate 
1217c478bd9Sstevel@tonic-gate 
1227c478bd9Sstevel@tonic-gate char *
1237c478bd9Sstevel@tonic-gate adr_getchar(adr_t *adr, char *cp)
1247c478bd9Sstevel@tonic-gate {
1257c478bd9Sstevel@tonic-gate 	char	*old;
1267c478bd9Sstevel@tonic-gate 
1277c478bd9Sstevel@tonic-gate 	old = adr->adr_now;
1287c478bd9Sstevel@tonic-gate 	*cp = *adr->adr_now++;
1297c478bd9Sstevel@tonic-gate 	return (old);
1307c478bd9Sstevel@tonic-gate }
1317c478bd9Sstevel@tonic-gate 
1327c478bd9Sstevel@tonic-gate char *
1337c478bd9Sstevel@tonic-gate adr_getshort(adr_t *adr, short	*sp)
1347c478bd9Sstevel@tonic-gate {
1357c478bd9Sstevel@tonic-gate 	char	*old;
1367c478bd9Sstevel@tonic-gate 
1377c478bd9Sstevel@tonic-gate 	old = adr->adr_now;
1387c478bd9Sstevel@tonic-gate 	*sp = *adr->adr_now++;
1397c478bd9Sstevel@tonic-gate 	*sp >>= (int)8;
1407c478bd9Sstevel@tonic-gate 	*sp = *adr->adr_now++;
1417c478bd9Sstevel@tonic-gate 	*sp >>= (int)8;
1427c478bd9Sstevel@tonic-gate 	return (old);
1437c478bd9Sstevel@tonic-gate }
1447c478bd9Sstevel@tonic-gate 
1457c478bd9Sstevel@tonic-gate char *
1467c478bd9Sstevel@tonic-gate adr_getint32(adr_t *adr, int32_t *lp)
1477c478bd9Sstevel@tonic-gate {
1487c478bd9Sstevel@tonic-gate 	char	*old;
1497c478bd9Sstevel@tonic-gate 	int	i;
1507c478bd9Sstevel@tonic-gate 
1517c478bd9Sstevel@tonic-gate 	old = adr->adr_now;
1527c478bd9Sstevel@tonic-gate 	for (i = 0; i < 4; i++) {
1537c478bd9Sstevel@tonic-gate 		*lp <<= 8;
1547c478bd9Sstevel@tonic-gate 		*lp += ((int32_t)*adr->adr_now++) & 0x000000ff;
1557c478bd9Sstevel@tonic-gate 
1567c478bd9Sstevel@tonic-gate 	}
1577c478bd9Sstevel@tonic-gate 	return (old);
1587c478bd9Sstevel@tonic-gate }
1597c478bd9Sstevel@tonic-gate 
1607c478bd9Sstevel@tonic-gate char *
1617c478bd9Sstevel@tonic-gate adr_getint64(adr_t *adr, int64_t *lp)
1627c478bd9Sstevel@tonic-gate {
1637c478bd9Sstevel@tonic-gate 	char	*old;
1647c478bd9Sstevel@tonic-gate 	int	i;
1657c478bd9Sstevel@tonic-gate 
1667c478bd9Sstevel@tonic-gate 	old = adr->adr_now;
1677c478bd9Sstevel@tonic-gate 	for (i = 0; i < 8; i++) {
1687c478bd9Sstevel@tonic-gate 		*lp <<= 8;
1697c478bd9Sstevel@tonic-gate 		*lp += ((int64_t)*adr->adr_now++) & 0x00000000000000ff;
1707c478bd9Sstevel@tonic-gate 	}
1717c478bd9Sstevel@tonic-gate 	return (old);
1727c478bd9Sstevel@tonic-gate }
173