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 
44 static 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  */
63 static int
_nss_ldap_auth2str(ldap_backend_ptr be,nss_XbyY_args_t * argp)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 
140 result_auth2str:
141 	(void) __ns_ldap_freeResult(&be->result);
142 	return ((int)nss_result);
143 }
144 
145 
146 static nss_status_t
getbyname(ldap_backend_ptr be,void * a)147 getbyname(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 
173 static 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*/
183 nss_backend_t *
_nss_ldap_auth_attr_constr(const char * dummy1,const char * dummy2,const char * dummy3,const char * dummy4,const char * dummy5)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