getauthattr.c revision 2830:5228d1267a01 
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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28#include <secdb.h>
29#include <auth_attr.h>
30#include "ldap_common.h"
31
32
33/* auth_attr attributes filters */
34#define	_AUTH_NAME		"cn"
35#define	_AUTH_RES1		"SolarisAttrReserved1"
36#define	_AUTH_RES2		"SolarisAttrReserved2"
37#define	_AUTH_SHORTDES		"SolarisAttrShortDesc"
38#define	_AUTH_LONGDES		"SolarisAttrLongDesc"
39#define	_AUTH_ATTRS		"SolarisAttrKeyValue"
40#define	_AUTH_GETAUTHNAME 	"(&(objectClass=SolarisAuthAttr)(cn=%s))"
41#define	_AUTH_GETAUTHNAME_SSD 	"(&(%%s)(cn=%s))"
42
43
44static const char *auth_attrs[] = {
45	_AUTH_NAME,
46	_AUTH_RES1,
47	_AUTH_RES2,
48	_AUTH_SHORTDES,
49	_AUTH_LONGDES,
50	_AUTH_ATTRS,
51	(char *)NULL
52};
53/*
54 * _nss_ldap_auth2str is the data marshaling method for the auth_attr
55 * system call getauthattr and getauthnam.
56 * This method is called after a successful search has been performed.
57 * This method will parse the search results into the file format.
58 * e.g.
59 *
60 * solaris.:::All Solaris Authorizations::help=AllSolAuthsHeader.html
61 *
62 */
63static int
64_nss_ldap_auth2str(ldap_backend_ptr be, nss_XbyY_args_t *argp)
65{
66	int			nss_result;
67	int			buflen = 0;
68	unsigned long		len = 0L;
69	char			*buffer = NULL;
70	ns_ldap_result_t	*result = be->result;
71	char			**name, **res1, **res2, **sdes, **ldes, **attr;
72	char			*res1_str, *res2_str, *sdes_str, *ldes_str;
73	char			*attr_str;
74
75	if (result == NULL)
76		return (NSS_STR_PARSE_PARSE);
77
78	buflen = argp->buf.buflen;
79	nss_result = NSS_STR_PARSE_SUCCESS;
80	(void) memset(argp->buf.buffer, 0, buflen);
81
82	name = __ns_ldap_getAttr(result->entry, _AUTH_NAME);
83	if (name == NULL || name[0] == NULL ||
84			(strlen(name[0]) < 1)) {
85		nss_result = NSS_STR_PARSE_PARSE;
86		goto result_auth2str;
87	}
88	res1 = __ns_ldap_getAttr(result->entry, _AUTH_RES1);
89	if (res1 == NULL || res1[0] == NULL || (strlen(res1[0]) < 1))
90		res1_str = _NO_VALUE;
91	else
92		res1_str = res1[0];
93
94	res2 = __ns_ldap_getAttr(result->entry, _AUTH_RES2);
95	if (res2 == NULL || res2[0] == NULL || (strlen(res2[0]) < 1))
96		res2_str = _NO_VALUE;
97	else
98		res2_str = res2[0];
99
100	sdes = __ns_ldap_getAttr(result->entry, _AUTH_SHORTDES);
101	if (sdes == NULL || sdes[0] == NULL || (strlen(sdes[0]) < 1))
102		sdes_str = _NO_VALUE;
103	else
104		sdes_str = sdes[0];
105
106	ldes = __ns_ldap_getAttr(result->entry, _AUTH_LONGDES);
107	if (ldes == NULL || ldes[0] == NULL || (strlen(ldes[0]) < 1))
108		ldes_str = _NO_VALUE;
109	else
110		ldes_str = ldes[0];
111
112	attr = __ns_ldap_getAttr(result->entry, _AUTH_ATTRS);
113	if (attr == NULL || attr[0] == NULL || (strlen(attr[0]) < 1))
114		attr_str = _NO_VALUE;
115	else
116		attr_str = attr[0];
117	/* 6 = 5 ':' + 1 '\0' */
118	len = strlen(name[0]) + strlen(res1_str) + strlen(res2_str) +
119		strlen(sdes_str) + strlen(ldes_str) + strlen(attr_str) + 6;
120	if (len > buflen) {
121		nss_result = NSS_STR_PARSE_ERANGE;
122		goto result_auth2str;
123	}
124
125	if (argp->buf.result != NULL) {
126		if ((be->buffer = calloc(1, len)) == NULL) {
127			nss_result = NSS_STR_PARSE_PARSE;
128			goto result_auth2str;
129		}
130		buffer = be->buffer;
131	} else
132		buffer = argp->buf.buffer;
133	(void) snprintf(buffer, len, "%s:%s:%s:%s:%s:%s",
134			name[0], res1_str, res2_str, sdes_str,
135			ldes_str, attr_str);
136	/* The front end marshaller doesn't need the trailing null */
137	if (argp->buf.result != NULL)
138		be->buflen = strlen(be->buffer);
139
140result_auth2str:
141	(void) __ns_ldap_freeResult(&be->result);
142	return ((int)nss_result);
143}
144
145
146static nss_status_t
147getbyname(ldap_backend_ptr be, void *a)
148{
149	nss_XbyY_args_t	*argp = (nss_XbyY_args_t *)a;
150	char		searchfilter[SEARCHFILTERLEN];
151	char		userdata[SEARCHFILTERLEN];
152	char		name[SEARCHFILTERLEN];
153	int		ret;
154
155	if (_ldap_filter_name(name, argp->key.name, sizeof (name)) != 0)
156		return ((nss_status_t)NSS_NOTFOUND);
157
158	ret = snprintf(searchfilter, SEARCHFILTERLEN,
159	    _AUTH_GETAUTHNAME, name);
160	if (ret >= sizeof (searchfilter) || ret < 0)
161		return ((nss_status_t)NSS_NOTFOUND);
162
163	ret = snprintf(userdata, sizeof (userdata),
164	    _AUTH_GETAUTHNAME_SSD, name);
165	if (ret >= sizeof (userdata) || ret < 0)
166		return ((nss_status_t)NSS_NOTFOUND);
167
168	return ((nss_status_t)_nss_ldap_lookup(be, argp,
169	    _AUTHATTR, searchfilter, NULL, _merge_SSD_filter, userdata));
170}
171
172
173static ldap_backend_op_t authattr_ops[] = {
174	_nss_ldap_destr,
175	_nss_ldap_endent,
176	_nss_ldap_setent,
177	_nss_ldap_getent,
178	getbyname
179};
180
181
182/*ARGSUSED0*/
183nss_backend_t *
184_nss_ldap_auth_attr_constr(const char *dummy1,
185    const char *dummy2,
186    const char *dummy3,
187    const char *dummy4,
188    const char *dummy5)
189{
190	return ((nss_backend_t *)_nss_ldap_constr(authattr_ops,
191		sizeof (authattr_ops)/sizeof (authattr_ops[0]), _AUTHATTR,
192		auth_attrs, _nss_ldap_auth2str));
193}
194