xref: /illumos-gate/usr/src/lib/libbsm/common/audit_allocate.c (revision bdfc6d18da790deeec2e0eb09c625902defe2498)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/types.h>
30 #include <bsm/audit.h>
31 #include <bsm/libbsm.h>
32 #include <bsm/audit_private.h>
33 #include <unistd.h>
34 #include <string.h>
35 #include <bsm/audit_uevents.h>
36 #include <generic.h>
37 
38 static int s_audit;	/* successful audit event */
39 static int f_audit;	/* failure audit event */
40 
41 static int ad;		/* audit descriptor */
42 
43 void
44 audit_allocate_argv(flg, argc, argv)
45 	int   flg;
46 	int   argc;
47 	char *argv[];
48 {
49 	int i;
50 
51 	if (cannot_audit(0)) {
52 		return;
53 	}
54 
55 	switch (flg) {
56 	case 0:
57 		s_audit = AUE_allocate_succ;
58 		f_audit = AUE_allocate_fail;
59 		break;
60 	case 1:
61 		s_audit = AUE_deallocate_succ;
62 		f_audit = AUE_deallocate_fail;
63 		break;
64 	case 2:
65 		s_audit = AUE_listdevice_succ;
66 		f_audit = AUE_listdevice_fail;
67 		break;
68 	}
69 
70 	ad = au_open();
71 
72 	for (i = 0; i < argc; i++)
73 		(void) au_write(ad, au_to_text(argv[i]));
74 }
75 
76 void
77 audit_allocate_device(path)
78 	char *path;
79 {
80 	if (cannot_audit(0)) {
81 		return;
82 	}
83 	(void) au_write(ad, au_to_path(path));
84 }
85 
86 int
87 audit_allocate_record(status)
88 	char	status;		/* success failure of operation */
89 {
90 	auditinfo_addr_t mask;		/* audit ID */
91 	au_event_t	event;		/* audit event number */
92 	int		policy;		/* audit policy */
93 	int		ng;		/* number of groups in process */
94 	gid_t		grplst[NGROUPS_UMAX];
95 
96 #ifdef DEBUG
97 	printf(("audit_allocate_record(%d)\n", status));
98 #endif
99 
100 	if (cannot_audit(0)) {
101 		return (0);
102 	}
103 
104 	if (getaudit_addr(&mask, sizeof (mask)) < 0) {
105 		if (!status)
106 			return (1);
107 		return (0);
108 	}
109 
110 	if (auditon(A_GETPOLICY, (caddr_t)&policy, 0) < 0) {
111 		if (!status)
112 			return (1);
113 		return (0);
114 	}
115 
116 
117 		/* determine if we're preselected */
118 	if (status)
119 		event = f_audit;
120 	else
121 		event = s_audit;
122 
123 	if (au_preselect(event, &mask.ai_mask, AU_PRS_BOTH, AU_PRS_REREAD)
124 		== NULL)
125 		return (0);
126 
127 	(void) au_write(ad, au_to_me());	/* add subject token */
128 
129 	if (policy & AUDIT_GROUP) {	/* add optional group token */
130 		(void) memset(grplst, 0, sizeof (grplst));
131 		if ((ng = getgroups(NGROUPS_UMAX, grplst)) < 0) {
132 			(void) au_close(ad, 0, 0);
133 			if (!status)
134 				return (1);
135 			return (0);
136 		}
137 		(void) au_write(ad, au_to_newgroups(ng, grplst));
138 	}
139 
140 	if (status)
141 		(void) au_write(ad, au_to_exit(status, -1));
142 	else
143 		(void) au_write(ad, au_to_exit(0, 0));
144 
145 		/* write audit record */
146 	if (au_close(ad, 1, event) < 0) {
147 		(void) au_close(ad, 0, 0);
148 		if (!status)
149 			return (1);
150 	}
151 
152 	return (0);
153 }
154 
155 void
156 audit_allocate_list(list)
157 	char *list;
158 {
159 	char buf[1024];
160 	char *file;
161 	char *last;
162 
163 	if (cannot_audit(0)) {
164 		return;
165 	}
166 
167 	(void) strcpy(buf, list);
168 
169 	for (file = strtok_r(buf, " ", &last); file;
170 	    file = strtok_r(NULL, " ", &last))
171 		(void) au_write(ad, au_to_path(file));
172 }
173