2 * Copyright (c) 1990 Regents of the University of Michigan.
5 * Redistribution and use in source and binary forms are permitted
6 * provided that this notice is preserved and that due credit is given
7 * to the University of Michigan at Ann Arbor. The name of the University
8 * may not be used to endorse or promote products derived from this
9 * software without specific prior written permission. This software
10 * is provided ``as is'' without express or implied warranty.
17 #include <ac/socket.h>
18 #include <ac/string.h> /* get SAFEMEMCPY */
20 #include <quipu/commonarg.h>
21 #include <quipu/attrvalue.h>
22 #include <quipu/ds_error.h>
23 #include <quipu/bind.h>
24 #include <quipu/compare.h>
31 extern int ldap_compat;
32 #define BINDTAG (ldap_compat == 20 ? OLD_LDAP_RES_BIND : LDAP_RES_BIND)
34 #define BINDTAG LDAP_RES_BIND
38 * do_bind - perform an X.500 bind operation. Since we always respond
39 * to the request in here, always return 0 to signify the incoming message
56 struct PSAPaddr *addr, *psap_cpy();
57 extern char *dsa_address;
60 Debug( LDAP_DEBUG_TRACE, "do_bind\n", 0, 0, 0 );
63 * Parse the bind request. It looks like this:
64 * BindRequest ::= SEQUENCE {
65 * version INTEGER, -- version
66 * name DistinguishedName, -- dn
67 * authentication CHOICE {
68 * simple [0] OCTET STRING -- passwd
69 * krbv42ldap [1] OCTET STRING
70 * krbv42dsa [1] OCTET STRING
75 if ( ber_scanf( ber, "{ia", &version, &dn ) == LBER_ERROR ) {
76 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
77 send_ldap_msgresult( clientsb, BINDTAG, m,
78 LDAP_PROTOCOL_ERROR, NULL, "Decoding error" );
82 if ( ldap_compat == 30 )
83 method = ber_skip_tag( ber, &len );
86 method = ber_peek_tag( ber, &len );
88 if ( ber_scanf( ber, "la}", &len, &pw ) == LBER_ERROR ) {
89 Debug( LDAP_DEBUG_ANY, "ber_scanf2 failed\n", 0, 0, 0 );
90 send_ldap_msgresult( clientsb, BINDTAG, m,
91 LDAP_PROTOCOL_ERROR, NULL, "Decoding error" );
95 if ( version != LDAP_VERSION1 && version != LDAP_VERSION2 ) {
96 Debug( LDAP_DEBUG_ANY, "unknown version %d\n", version, 0, 0 );
97 send_ldap_msgresult( clientsb, BINDTAG, m,
98 LDAP_PROTOCOL_ERROR, NULL, "Version not supported" );
102 Debug( LDAP_DEBUG_ARGS, "do_bind: version %d dn (%s) method %d\n",
103 version, dn, method );
105 if ( m->m_conn->c_paddr == NULLPA ) {
108 sprintf( buf, "Bad DSA address (%s)", dsa_address ?
109 dsa_address : "NULL" );
110 send_ldap_msgresult( clientsb, BINDTAG, m,
111 LDAP_OPERATIONS_ERROR, NULL, buf );
115 if ( m->m_conn->c_dn )
116 free( m->m_conn->c_dn );
117 if ( m->m_conn->c_cred )
118 free( m->m_conn->c_cred );
119 m->m_conn->c_dn = dn;
120 m->m_conn->c_cred = pw;
121 m->m_conn->c_credlen = len;
122 m->m_conn->c_method = method;
124 err = do_bind_real( m->m_conn, bound, &matched );
126 send_ldap_msgresult( clientsb, BINDTAG, m, err, matched, "" );
128 if ( matched != NULL )
136 struct conn *dsaconn,
141 struct ds_bind_arg ba;
142 struct ds_bind_arg br;
143 struct ds_bind_error be;
145 char *dn = dsaconn->c_dn;
150 extern DN ldap_str2dn();
152 Debug( LDAP_DEBUG_TRACE, "do_bind_real\n", 0, 0, 0 );
155 if ( (ba.dba_dn = ldap_str2dn( dn )) == NULLDN && *dn != '\0' ) {
156 Debug( LDAP_DEBUG_ANY, "ldap_str2dn (%s) failed\n", dn, 0, 0 );
157 return( LDAP_INVALID_DN_SYNTAX );
160 switch ( dsaconn->c_method ) {
162 case OLD_LDAP_AUTH_SIMPLE:
165 case LDAP_AUTH_SIMPLE_30:
167 case LDAP_AUTH_SIMPLE: /* x.500 simple authentication */
168 if ( dsaconn->c_credlen > DBA_MAX_PASSWD_LEN ) {
169 Debug( LDAP_DEBUG_ANY, "Password too long\n", 0, 0, 0 );
170 return( LDAP_INAPPROPRIATE_AUTH );
172 if (( ba.dba_passwd_len = dsaconn->c_credlen ) > 0 ) {
173 SAFEMEMCPY( ba.dba_passwd, dsaconn->c_cred,
175 ba.dba_auth_type = DBA_AUTH_SIMPLE;
177 ba.dba_auth_type = DBA_AUTH_NONE;
179 ba.dba_version = DBA_VERSION_V1988;
184 case OLD_LDAP_AUTH_KRBV4:
187 case LDAP_AUTH_KRBV41_30:
189 case LDAP_AUTH_KRBV41: /* kerberos authentication to ldap server */
190 return( kerberosv4_ldap_auth( dsaconn->c_cred,
191 dsaconn->c_credlen ) );
195 case OLD_LDAP_AUTH_KRBV42:
198 case LDAP_AUTH_KRBV42_30:
200 case LDAP_AUTH_KRBV42: /* kerberos authentication to x500 dsa */
201 if ( (err = kerberosv4_bindarg( &ba, ba.dba_dn, dsaconn->c_cred,
202 dsaconn->c_credlen, &nonce )) != 0 )
208 return( LDAP_PROTOCOL_ERROR );
212 if ( dsaconn->c_ad != -1 )
213 dap_unbind( dsaconn->c_ad );
215 Debug( LDAP_DEBUG_TRACE, "dap_bind to dsa (%s)...\n", paddr2str(
216 dsaconn->c_paddr, NULLNA ), 0, 0 );
218 err = dap_bind( &dsaconn->c_ad, &ba, &be, &br, dsaconn->c_paddr );
220 if ( err != DS_OK && ba.dba_dn != NULLDN && ba.dba_auth_type
221 == DBA_AUTH_NONE && be.dbe_type == DBE_TYPE_SECURITY ) {
222 /* if doing a NULL bind, retry with a NULL dn */
223 Debug( LDAP_DEBUG_TRACE, "retring NULL dap_bind\n", 0, 0, 0 );
224 dn_free( ba.dba_dn );
226 err = dap_bind( &dsaconn->c_ad, &ba, &be, &br,
230 if ( err != DS_OK ) {
231 if ( ba.dba_dn != NULLDN )
232 dn_free( ba.dba_dn );
234 if ( be.dbe_type == DBE_TYPE_SERVICE ) {
235 dse.dse_type = DSE_SERVICEERROR;
236 dse.ERR_SERVICE.DSE_sv_problem = be.dbe_value;
237 } else if ( be.dbe_type == DBE_TYPE_SECURITY ) {
238 dse.dse_type = DSE_SECURITYERROR;
239 dse.ERR_SECURITY.DSE_sc_problem = be.dbe_value;
241 dse.dse_type = DSE_REMOTEERROR;
243 err = x500err2ldaperr( &dse, matched );
247 print_error( &dse ); /* prints and then frees */
250 ds_error_free( &dse );
256 bind_arg_free( &br );
258 Debug( LDAP_DEBUG_TRACE, "dap_bind successful\n", 0, 0, 0 );
261 /* XXX why doesn't this work??
262 if ( dsaconn->c_method == LDAP_AUTH_KRBV42 &&
263 kerberos_check_mutual( &br, nonce ) != 0 ) {
264 Debug( LDAP_DEBUG_ANY, "Mutual authentication failed\n", 0, 0,
266 return( LDAP_INVALID_CREDENTIALS );
273 return( LDAP_SUCCESS );