summaryrefslogtreecommitdiff
path: root/usr/src/lib/nsswitch/ldap/common/getauuser.c
blob: 2267b22ba9459ca400b287cd3a08b2fb2c6def36 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#include <secdb.h>
#include "ldap_common.h"
#include <bsm/libbsm.h>


/* audit_user attributes */
#define	_AU_NAME		"uid"
#define	_AU_ALWAYS		"SolarisAuditAlways"
#define	_AU_NEVER		"SolarisAuditNever"
#define	_AU_GETAUUSERNAME	"(&(objectClass=SolarisAuditUser)(uid=%s))"
#define	_AU_GETAUUSERNAME_SSD	"(&(%%s)(uid=%s))"


static const char *auuser_attrs[] = {
	_AU_NAME,
	_AU_ALWAYS,
	_AU_NEVER,
	(char *)NULL
};


static int
_nss_ldap_au2ent(ldap_backend_ptr be, nss_XbyY_args_t *argp)
{
	int			i, nss_result;
	int			buflen = (int)0;
	unsigned long		len = 0L;
	char			*nullstring = (char *)NULL;
	char			*buffer = (char *)NULL;
	char			*ceiling = (char *)NULL;
	au_user_str_t		*au_user = (au_user_str_t *)NULL;
	ns_ldap_attr_t		*attrptr;
	ns_ldap_result_t	*result = be->result;

	buffer = argp->buf.buffer;
	buflen = (size_t)argp->buf.buflen;
	if (!argp->buf.result) {
		nss_result = (int)NSS_STR_PARSE_ERANGE;
		goto result_au2ent;
	}
	au_user = (au_user_str_t *)(argp->buf.result);
	ceiling = buffer + buflen;
	au_user->au_name = (char *)NULL;
	au_user->au_always = (char *)NULL;
	au_user->au_never = (char *)NULL;
	nss_result = (int)NSS_STR_PARSE_SUCCESS;
	(void) memset(argp->buf.buffer, 0, buflen);

	attrptr = getattr(result, 0);
	if (attrptr == NULL) {
		nss_result = (int)NSS_STR_PARSE_PARSE;
		goto result_au2ent;
	}
	for (i = 0; i < result->entry->attr_count; i++) {
		attrptr = getattr(result, i);
		if (attrptr == NULL) {
			nss_result = (int)NSS_STR_PARSE_PARSE;
			goto result_au2ent;
		}
		if (strcasecmp(attrptr->attrname, _AU_NAME) == 0) {
			if ((attrptr->attrvalue[0] == NULL) ||
			    (len = strlen(attrptr->attrvalue[0])) < 1) {
				nss_result = (int)NSS_STR_PARSE_PARSE;
				goto result_au2ent;
			}
			au_user->au_name = buffer;
			buffer += len + 1;
			if (buffer >= ceiling) {
				nss_result = (int)NSS_STR_PARSE_ERANGE;
				goto result_au2ent;
			}
			(void) strcpy(au_user->au_name, attrptr->attrvalue[0]);
			continue;
		}
		if (strcasecmp(attrptr->attrname, _AU_ALWAYS) == 0) {
			if ((attrptr->attrvalue[0] == NULL) ||
			    (len = strlen(attrptr->attrvalue[0])) < 1) {
				au_user->au_always = nullstring;
			} else {
				au_user->au_always = buffer;
				buffer += len + 1;
				if (buffer >= ceiling) {
					nss_result = (int)NSS_STR_PARSE_ERANGE;
					goto result_au2ent;
				}
				(void) strcpy(au_user->au_always,
				    attrptr->attrvalue[0]);
			}
			continue;
		}
		if (strcasecmp(attrptr->attrname, _AU_NEVER) == 0) {
			if ((attrptr->attrvalue[0] == NULL) ||
			    (len = strlen(attrptr->attrvalue[0])) < 1) {
				au_user->au_never = nullstring;
			} else {
				au_user->au_never = buffer;
				buffer += len + 1;
				if (buffer >= ceiling) {
					nss_result = (int)NSS_STR_PARSE_ERANGE;
					goto result_au2ent;
				}
				(void) strcpy(au_user->au_never,
				    attrptr->attrvalue[0]);
			}
			continue;
		}
	}

#ifdef	DEBUG
	(void) fprintf(stdout, "\n[getauuser.c: _nss_ldap_au2ent]\n");
	(void) fprintf(stdout, "      au_name: [%s]\n", au_user->au_name);
	if (au_user->au_always != (char *)NULL) {
		(void) fprintf(stdout, "      au_always: [%s]\n",
		    au_user->au_always);
	}
	if (au_user->au_never != (char *)NULL) {
		(void) fprintf(stdout, "      au_never: [%s]\n",
		    au_user->au_never);
	}
#endif	/* DEBUG */

result_au2ent:
	(void) __ns_ldap_freeResult(&be->result);
	return ((int)nss_result);
}


static nss_status_t
getbyname(ldap_backend_ptr be, void *a)
{
	char		searchfilter[SEARCHFILTERLEN];
	char		userdata[SEARCHFILTERLEN];
	char		name[SEARCHFILTERLEN];
	nss_XbyY_args_t	*argp = (nss_XbyY_args_t *)a;
	int		ret;

#ifdef	DEBUG
	(void) fprintf(stdout, "\n[getauuser.c: getbyname]\n");
#endif	/* DEBUG */

	if (_ldap_filter_name(name, argp->key.name, sizeof (name)) != 0)
		return ((nss_status_t)NSS_NOTFOUND);

	ret = snprintf(searchfilter, sizeof (searchfilter),
	    _AU_GETAUUSERNAME, name);

	if (ret >= sizeof (searchfilter) || ret < 0)
		return ((nss_status_t)NSS_NOTFOUND);

	ret = snprintf(userdata, sizeof (userdata),
	    _AU_GETAUUSERNAME_SSD, name);

	if (ret >= sizeof (userdata) || ret < 0)
		return ((nss_status_t)NSS_NOTFOUND);

	return (_nss_ldap_lookup(be, argp, _AUUSER, searchfilter, NULL,
	    _merge_SSD_filter, userdata));
}


static ldap_backend_op_t auuser_ops[] = {
	_nss_ldap_destr,
	_nss_ldap_endent,
	_nss_ldap_setent,
	_nss_ldap_getent,
	getbyname
};


/*ARGSUSED0*/
nss_backend_t *
_nss_ldap_audit_user_constr(const char *dummy1,
    const char *dummy2,
    const char *dummy3,
    const char *dummy4,
    const char *dummy5)
{
#ifdef	DEBUG
	(void) fprintf(stdout,
	    "\n[getauuser.c: _nss_ldap_audit_user_constr]\n");
#endif
	return ((nss_backend_t *)_nss_ldap_constr(auuser_ops,
		sizeof (auuser_ops)/sizeof (auuser_ops[0]), _AUUSER,
		auuser_attrs, _nss_ldap_au2ent));
}