2 * Copyright (c) 2004 Apple Inc.
3 * Copyright (c) 2006 Robert N. M. Watson
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of Apple Inc. ("Apple") nor the names of
15 * its contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
30 * $P4: //depot/projects/trustedbsd/openbsm/libbsm/bsm_flags.c#16 $
33 #include <config/config.h>
35 #include <bsm/libbsm.h>
42 #include <compat/strlcpy.h>
45 static const char *flagdelim = ",";
48 * Convert the character representation of audit values into the au_mask_t
52 getauditflagsbin(char *auditstr, au_mask_t *masks)
54 char class_ent_name[AU_CLASS_NAME_MAX];
55 char class_ent_desc[AU_CLASS_DESC_MAX];
56 struct au_class_ent c;
62 bzero(class_ent_name, sizeof(class_ent_name));
63 bzero(class_ent_desc, sizeof(class_ent_desc));
64 c.ac_name = class_ent_name;
65 c.ac_desc = class_ent_desc;
67 masks->am_success = 0;
68 masks->am_failure = 0;
70 tok = strtok_r(auditstr, flagdelim, &last);
72 /* Check for the events that should not be audited. */
79 /* Check for the events to be audited for success. */
83 } else if (tok[0] == '-') {
89 if ((getauclassnam_r(&c, tok)) != NULL) {
91 SUB_FROM_MASK(masks, c.ac_class, sel);
93 ADD_TO_MASK(masks, c.ac_class, sel);
99 /* Get the next class. */
100 tok = strtok_r(NULL, flagdelim, &last);
106 * Convert the au_mask_t fields into a string value. If verbose is non-zero
107 * the long flag names are used else the short (2-character)flag names are
110 * XXXRW: If bits are specified that are not matched by any class, they are
111 * omitted rather than rejected with EINVAL.
113 * XXXRW: This is not thread-safe as it relies on atomicity between
114 * setauclass() and sequential calls to getauclassent(). This could be
115 * fixed by iterating through the bitmask fields rather than iterating
116 * through the classes.
119 getauditflagschar(char *auditstr, au_mask_t *masks, int verbose)
121 char class_ent_name[AU_CLASS_NAME_MAX];
122 char class_ent_desc[AU_CLASS_DESC_MAX];
123 struct au_class_ent c;
124 char *strptr = auditstr;
127 bzero(&c, sizeof(c));
128 bzero(class_ent_name, sizeof(class_ent_name));
129 bzero(class_ent_desc, sizeof(class_ent_desc));
130 c.ac_name = class_ent_name;
131 c.ac_desc = class_ent_desc;
134 * Enumerate the class entries, check if each is selected in either
135 * the success or failure masks.
138 while ((getauclassent_r(&c)) != NULL) {
141 /* Dont do anything for class = no. */
145 sel |= ((c.ac_class & masks->am_success) == c.ac_class) ?
147 sel |= ((c.ac_class & masks->am_failure) == c.ac_class) ?
151 * No prefix should be attached if both success and failure
154 if ((sel & AU_PRS_BOTH) == 0) {
155 if ((sel & AU_PRS_SUCCESS) != 0) {
158 } else if ((sel & AU_PRS_FAILURE) != 0) {
166 strlcpy(strptr, c.ac_desc, AU_CLASS_DESC_MAX);
167 strptr += strlen(c.ac_desc);
169 strlcpy(strptr, c.ac_name, AU_CLASS_NAME_MAX);
170 strptr += strlen(c.ac_name);
172 *strptr = ','; /* delimiter */
177 /* Overwrite the last delimiter with the string terminator. */
178 if (strptr != auditstr)