1 /* $NetBSD: unbind.c,v 1.1.1.3 2010/12/12 15:21:40 adam Exp $ */ 2 3 /* OpenLDAP: pkg/ldap/libraries/libldap/unbind.c,v 1.56.2.8 2010/06/10 17:39:48 quanah Exp */ 4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 5 * 6 * Copyright 1998-2010 The OpenLDAP Foundation. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted only as authorized by the OpenLDAP 11 * Public License. 12 * 13 * A copy of this license is available in the file LICENSE in the 14 * top-level directory of the distribution or, alternatively, at 15 * <http://www.OpenLDAP.org/license.html>. 16 */ 17 /* Portions Copyright (c) 1990 Regents of the University of Michigan. 18 * All rights reserved. 19 */ 20 21 #include "portable.h" 22 23 #include <stdio.h> 24 #include <ac/stdlib.h> 25 26 #include <ac/socket.h> 27 #include <ac/string.h> 28 #include <ac/time.h> 29 30 #include "ldap-int.h" 31 32 /* An Unbind Request looks like this: 33 * 34 * UnbindRequest ::= [APPLICATION 2] NULL 35 * 36 * and has no response. (Source: RFC 4511) 37 */ 38 39 int 40 ldap_unbind_ext( 41 LDAP *ld, 42 LDAPControl **sctrls, 43 LDAPControl **cctrls ) 44 { 45 int rc; 46 47 assert( ld != NULL ); 48 assert( LDAP_VALID( ld ) ); 49 50 /* check client controls */ 51 rc = ldap_int_client_controls( ld, cctrls ); 52 if( rc != LDAP_SUCCESS ) return rc; 53 54 return ldap_ld_free( ld, 1, sctrls, cctrls ); 55 } 56 57 int 58 ldap_unbind_ext_s( 59 LDAP *ld, 60 LDAPControl **sctrls, 61 LDAPControl **cctrls ) 62 { 63 return ldap_unbind_ext( ld, sctrls, cctrls ); 64 } 65 66 int 67 ldap_unbind( LDAP *ld ) 68 { 69 Debug( LDAP_DEBUG_TRACE, "ldap_unbind\n", 0, 0, 0 ); 70 71 return( ldap_unbind_ext( ld, NULL, NULL ) ); 72 } 73 74 75 int 76 ldap_ld_free( 77 LDAP *ld, 78 int close, 79 LDAPControl **sctrls, 80 LDAPControl **cctrls ) 81 { 82 LDAPMessage *lm, *next; 83 int err = LDAP_SUCCESS; 84 85 /* free LDAP structure and outstanding requests/responses */ 86 #ifdef LDAP_R_COMPILE 87 ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex ); 88 #endif 89 while ( ld->ld_requests != NULL ) { 90 ldap_free_request( ld, ld->ld_requests ); 91 } 92 93 /* free and unbind from all open connections */ 94 while ( ld->ld_conns != NULL ) { 95 ldap_free_connection( ld, ld->ld_conns, 1, close ); 96 } 97 #ifdef LDAP_R_COMPILE 98 ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex ); 99 #endif 100 101 #ifdef LDAP_R_COMPILE 102 ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex ); 103 #endif 104 for ( lm = ld->ld_responses; lm != NULL; lm = next ) { 105 next = lm->lm_next; 106 ldap_msgfree( lm ); 107 } 108 109 if ( ld->ld_abandoned != NULL ) { 110 LDAP_FREE( ld->ld_abandoned ); 111 ld->ld_abandoned = NULL; 112 } 113 #ifdef LDAP_R_COMPILE 114 ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex ); 115 #endif 116 117 /* final close callbacks */ 118 { 119 ldaplist *ll, *next; 120 121 for ( ll = ld->ld_options.ldo_conn_cbs; ll; ll = next ) { 122 ldap_conncb *cb = ll->ll_data; 123 next = ll->ll_next; 124 cb->lc_del( ld, NULL, cb ); 125 LDAP_FREE( ll ); 126 } 127 } 128 129 if ( ld->ld_error != NULL ) { 130 LDAP_FREE( ld->ld_error ); 131 ld->ld_error = NULL; 132 } 133 134 if ( ld->ld_matched != NULL ) { 135 LDAP_FREE( ld->ld_matched ); 136 ld->ld_matched = NULL; 137 } 138 139 if( ld->ld_referrals != NULL) { 140 LDAP_VFREE(ld->ld_referrals); 141 ld->ld_referrals = NULL; 142 } 143 144 if ( ld->ld_selectinfo != NULL ) { 145 ldap_free_select_info( ld->ld_selectinfo ); 146 ld->ld_selectinfo = NULL; 147 } 148 149 if ( ld->ld_options.ldo_defludp != NULL ) { 150 ldap_free_urllist( ld->ld_options.ldo_defludp ); 151 ld->ld_options.ldo_defludp = NULL; 152 } 153 154 #ifdef LDAP_CONNECTIONLESS 155 if ( ld->ld_options.ldo_peer != NULL ) { 156 LDAP_FREE( ld->ld_options.ldo_peer ); 157 ld->ld_options.ldo_peer = NULL; 158 } 159 160 if ( ld->ld_options.ldo_cldapdn != NULL ) { 161 LDAP_FREE( ld->ld_options.ldo_cldapdn ); 162 ld->ld_options.ldo_cldapdn = NULL; 163 } 164 #endif 165 166 #ifdef HAVE_CYRUS_SASL 167 if ( ld->ld_options.ldo_def_sasl_mech != NULL ) { 168 LDAP_FREE( ld->ld_options.ldo_def_sasl_mech ); 169 ld->ld_options.ldo_def_sasl_mech = NULL; 170 } 171 172 if ( ld->ld_options.ldo_def_sasl_realm != NULL ) { 173 LDAP_FREE( ld->ld_options.ldo_def_sasl_realm ); 174 ld->ld_options.ldo_def_sasl_realm = NULL; 175 } 176 177 if ( ld->ld_options.ldo_def_sasl_authcid != NULL ) { 178 LDAP_FREE( ld->ld_options.ldo_def_sasl_authcid ); 179 ld->ld_options.ldo_def_sasl_authcid = NULL; 180 } 181 182 if ( ld->ld_options.ldo_def_sasl_authzid != NULL ) { 183 LDAP_FREE( ld->ld_options.ldo_def_sasl_authzid ); 184 ld->ld_options.ldo_def_sasl_authzid = NULL; 185 } 186 #endif 187 188 #ifdef HAVE_TLS 189 ldap_int_tls_destroy( &ld->ld_options ); 190 #endif 191 192 if ( ld->ld_options.ldo_sctrls != NULL ) { 193 ldap_controls_free( ld->ld_options.ldo_sctrls ); 194 ld->ld_options.ldo_sctrls = NULL; 195 } 196 197 if ( ld->ld_options.ldo_cctrls != NULL ) { 198 ldap_controls_free( ld->ld_options.ldo_cctrls ); 199 ld->ld_options.ldo_cctrls = NULL; 200 } 201 202 ber_sockbuf_free( ld->ld_sb ); 203 204 #ifdef LDAP_R_COMPILE 205 ldap_pvt_thread_mutex_destroy( &ld->ld_req_mutex ); 206 ldap_pvt_thread_mutex_destroy( &ld->ld_res_mutex ); 207 ldap_pvt_thread_mutex_destroy( &ld->ld_conn_mutex ); 208 #endif 209 #ifndef NDEBUG 210 LDAP_TRASH(ld); 211 #endif 212 LDAP_FREE( (char *) ld ); 213 214 return( err ); 215 } 216 217 int 218 ldap_unbind_s( LDAP *ld ) 219 { 220 return( ldap_unbind_ext( ld, NULL, NULL ) ); 221 } 222 223 /* FIXME: this function is called only by ldap_free_connection(), 224 * which, most of the times, is called with ld_req_mutex locked */ 225 int 226 ldap_send_unbind( 227 LDAP *ld, 228 Sockbuf *sb, 229 LDAPControl **sctrls, 230 LDAPControl **cctrls ) 231 { 232 BerElement *ber; 233 ber_int_t id; 234 235 Debug( LDAP_DEBUG_TRACE, "ldap_send_unbind\n", 0, 0, 0 ); 236 237 #ifdef LDAP_CONNECTIONLESS 238 if (LDAP_IS_UDP(ld)) 239 return LDAP_SUCCESS; 240 #endif 241 /* create a message to send */ 242 if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) { 243 return( ld->ld_errno ); 244 } 245 246 id = ++(ld)->ld_msgid; 247 248 /* fill it in */ 249 if ( ber_printf( ber, "{itn" /*}*/, id, 250 LDAP_REQ_UNBIND ) == -1 ) { 251 ld->ld_errno = LDAP_ENCODING_ERROR; 252 ber_free( ber, 1 ); 253 return( ld->ld_errno ); 254 } 255 256 /* Put Server Controls */ 257 if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) { 258 ber_free( ber, 1 ); 259 return ld->ld_errno; 260 } 261 262 if ( ber_printf( ber, /*{*/ "N}", LDAP_REQ_UNBIND ) == -1 ) { 263 ld->ld_errno = LDAP_ENCODING_ERROR; 264 ber_free( ber, 1 ); 265 return( ld->ld_errno ); 266 } 267 268 ld->ld_errno = LDAP_SUCCESS; 269 /* send the message */ 270 if ( ber_flush2( sb, ber, LBER_FLUSH_FREE_ALWAYS ) == -1 ) { 271 ld->ld_errno = LDAP_SERVER_DOWN; 272 } 273 274 return( ld->ld_errno ); 275 } 276