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 <netdb.h>
29 #include "ldap_common.h"
30 #include <sys/types.h>
31 #include <sys/socket.h>
32 #include <netinet/in.h>
33 #include <arpa/inet.h>
34 #include <sys/tsol/tndb.h>
35
36 /* tnrhdb attributes filters */
37 #define _TNRHDB_ADDR "ipTnetNumber"
38 #define _TNRHDB_TNAME "ipTnetTemplateName"
39 #define _F_GETTNDBBYADDR "(&(objectClass=ipTnetHost)(ipTnetNumber=%s))"
40 #define _F_GETTNDBBYADDR_SSD "(&(%%s)(ipTnetNumber=%s))"
41
42 static const char *tnrhdb_attrs[] = {
43 _TNRHDB_ADDR,
44 _TNRHDB_TNAME,
45 NULL
46 };
47
48 static void
escape_colon(char * in,char * out)49 escape_colon(char *in, char *out) {
50 int i, j;
51 for (i = 0, j = 0; in[i] != '\0'; i++) {
52 if (in[i] == ':') {
53 out[j++] = '\\';
54 out[j++] = in[i];
55 } else
56 out[j++] = in[i];
57 }
58 out[j] = '\0';
59 }
60
61 /*
62 * _nss_ldap_tnrhdb2str is the data marshaling method for the tnrhdb
63 * (tsol_getrhbyaddr()/tsol_getrhent()) backend processes.
64 * This method is called after a successful ldap search has been performed.
65 * This method will parse the ldap search values into the file format.
66 *
67 * e.g.
68 *
69 * 192.168.120.6:public
70 * fec0\:\:a00\:20ff\:fea0\:21f7:cipso
71 *
72 */
73 static int
_nss_ldap_tnrhdb2str(ldap_backend_ptr be,nss_XbyY_args_t * argp)74 _nss_ldap_tnrhdb2str(ldap_backend_ptr be, nss_XbyY_args_t *argp)
75 {
76 int nss_result = NSS_STR_PARSE_SUCCESS;
77 int len = 0;
78 char *buffer = NULL;
79 char **addr, **template, *addr_out;
80 ns_ldap_result_t *result = be->result;
81 char addr6[INET6_ADDRSTRLEN + 5]; /* 5 '\' for ':' at most */
82
83 if (result == NULL)
84 return (NSS_STR_PARSE_PARSE);
85
86 addr = __ns_ldap_getAttr(result->entry, _TNRHDB_ADDR);
87 if (addr == NULL || addr[0] == NULL || (strlen(addr[0]) < 1)) {
88 nss_result = NSS_STR_PARSE_PARSE;
89 goto result_tnrhdb2str;
90 }
91
92 /*
93 * Escape ':' in IPV6.
94 * The value is stored in LDAP directory without escape charaters.
95 */
96 if (strchr(addr[0], ':') != NULL) {
97 escape_colon(addr[0], addr6);
98 addr_out = addr6;
99 } else
100 addr_out = addr[0];
101
102 template = __ns_ldap_getAttr(result->entry, _TNRHDB_TNAME);
103 if (template == NULL || template[0] == NULL ||
104 (strlen(template[0]) < 1)) {
105 nss_result = NSS_STR_PARSE_PARSE;
106 goto result_tnrhdb2str;
107 }
108 /* "addr:template" */
109 len = strlen(addr_out) + strlen(template[0]) + 2;
110
111 if (argp->buf.result != NULL) {
112 if ((be->buffer = calloc(1, len)) == NULL) {
113 nss_result = NSS_STR_PARSE_PARSE;
114 goto result_tnrhdb2str;
115 }
116 be->buflen = len - 1;
117 buffer = be->buffer;
118 } else
119 buffer = argp->buf.buffer;
120
121 (void) snprintf(buffer, len, "%s:%s", addr_out, template[0]);
122
123 result_tnrhdb2str:
124 (void) __ns_ldap_freeResult(&be->result);
125 return (nss_result);
126 }
127
128
129 static nss_status_t
getbyaddr(ldap_backend_ptr be,void * a)130 getbyaddr(ldap_backend_ptr be, void *a)
131 {
132 char searchfilter[SEARCHFILTERLEN];
133 char userdata[SEARCHFILTERLEN];
134 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
135
136 if (argp->key.hostaddr.addr == NULL ||
137 (argp->key.hostaddr.type != AF_INET &&
138 argp->key.hostaddr.type != AF_INET6))
139 return (NSS_NOTFOUND);
140 if (strchr(argp->key.hostaddr.addr, ':') != NULL) {
141 /* IPV6 */
142 if (argp->key.hostaddr.type == AF_INET)
143 return (NSS_NOTFOUND);
144 } else {
145 /* IPV4 */
146 if (argp->key.hostaddr.type == AF_INET6)
147 return (NSS_NOTFOUND);
148 }
149
150 /*
151 * The IPV6 addresses are saved in the directory without '\'s.
152 * So don't need to escape colons in IPV6 addresses.
153 */
154 if (snprintf(searchfilter, sizeof (searchfilter), _F_GETTNDBBYADDR,
155 argp->key.hostaddr.addr) < 0)
156 return ((nss_status_t)NSS_NOTFOUND);
157
158 if (snprintf(userdata, sizeof (userdata), _F_GETTNDBBYADDR_SSD,
159 argp->key.hostaddr.addr) < 0)
160 return ((nss_status_t)NSS_NOTFOUND);
161
162 return (_nss_ldap_lookup(be, argp, _TNRHDB, searchfilter, NULL,
163 _merge_SSD_filter, userdata));
164 }
165
166
167 static ldap_backend_op_t tnrhdb_ops[] = {
168 _nss_ldap_destr,
169 _nss_ldap_endent,
170 _nss_ldap_setent,
171 _nss_ldap_getent,
172 getbyaddr
173 };
174
175
176 /* ARGSUSED */
177 nss_backend_t *
_nss_ldap_tnrhdb_constr(const char * dummy1,const char * dummy2,const char * dummy3,const char * dummy4,const char * dummy5)178 _nss_ldap_tnrhdb_constr(const char *dummy1,
179 const char *dummy2,
180 const char *dummy3,
181 const char *dummy4,
182 const char *dummy5)
183 {
184 return ((nss_backend_t *)_nss_ldap_constr(tnrhdb_ops,
185 sizeof (tnrhdb_ops)/sizeof (tnrhdb_ops[0]), _TNRHDB,
186 tnrhdb_attrs, _nss_ldap_tnrhdb2str));
187 }
188