1 /* $NetBSD: init.c,v 1.1.1.4 2010/12/12 15:23:05 adam Exp $ */ 2 3 /* init.c - initialize ldap backend */ 4 /* OpenLDAP: pkg/ldap/servers/slapd/back-ldap/init.c,v 1.99.2.16 2010/04/15 20:25:48 quanah Exp */ 5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 6 * 7 * Copyright 2003-2010 The OpenLDAP Foundation. 8 * Portions Copyright 1999-2003 Howard Chu. 9 * Portions Copyright 2000-2003 Pierangelo Masarati. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted only as authorized by the OpenLDAP 14 * Public License. 15 * 16 * A copy of this license is available in the file LICENSE in the 17 * top-level directory of the distribution or, alternatively, at 18 * <http://www.OpenLDAP.org/license.html>. 19 */ 20 /* ACKNOWLEDGEMENTS: 21 * This work was initially developed by the Howard Chu for inclusion 22 * in OpenLDAP Software and subsequently enhanced by Pierangelo 23 * Masarati. 24 */ 25 26 #include "portable.h" 27 28 #include <stdio.h> 29 30 #include <ac/string.h> 31 #include <ac/socket.h> 32 33 #include "slap.h" 34 #include "config.h" 35 #include "back-ldap.h" 36 37 static const ldap_extra_t ldap_extra = { 38 ldap_back_proxy_authz_ctrl, 39 ldap_back_controls_free, 40 slap_idassert_authzfrom_parse_cf, 41 slap_idassert_passthru_parse_cf, 42 slap_idassert_parse_cf, 43 slap_retry_info_destroy, 44 slap_retry_info_parse, 45 slap_retry_info_unparse, 46 ldap_back_connid2str 47 }; 48 49 int 50 ldap_back_open( BackendInfo *bi ) 51 { 52 bi->bi_controls = slap_known_controls; 53 return 0; 54 } 55 56 int 57 ldap_back_initialize( BackendInfo *bi ) 58 { 59 int rc; 60 61 bi->bi_flags = 62 #ifdef LDAP_DYNAMIC_OBJECTS 63 /* this is set because all the support a proxy has to provide 64 * is the capability to forward the refresh exop, and to 65 * pass thru entries that contain the dynamicObject class 66 * and the entryTtl attribute */ 67 SLAP_BFLAG_DYNAMIC | 68 #endif /* LDAP_DYNAMIC_OBJECTS */ 69 70 /* back-ldap recognizes RFC4525 increment; 71 * let the remote server complain, if needed (ITS#5912) */ 72 SLAP_BFLAG_INCREMENT; 73 74 bi->bi_open = ldap_back_open; 75 bi->bi_config = 0; 76 bi->bi_close = 0; 77 bi->bi_destroy = 0; 78 79 bi->bi_db_init = ldap_back_db_init; 80 bi->bi_db_config = config_generic_wrapper; 81 bi->bi_db_open = ldap_back_db_open; 82 bi->bi_db_close = ldap_back_db_close; 83 bi->bi_db_destroy = ldap_back_db_destroy; 84 85 bi->bi_op_bind = ldap_back_bind; 86 bi->bi_op_unbind = 0; 87 bi->bi_op_search = ldap_back_search; 88 bi->bi_op_compare = ldap_back_compare; 89 bi->bi_op_modify = ldap_back_modify; 90 bi->bi_op_modrdn = ldap_back_modrdn; 91 bi->bi_op_add = ldap_back_add; 92 bi->bi_op_delete = ldap_back_delete; 93 bi->bi_op_abandon = 0; 94 95 bi->bi_extended = ldap_back_extended; 96 97 bi->bi_chk_referrals = 0; 98 bi->bi_entry_get_rw = ldap_back_entry_get; 99 100 bi->bi_connection_init = 0; 101 bi->bi_connection_destroy = ldap_back_conn_destroy; 102 103 bi->bi_extra = (void *)&ldap_extra; 104 105 rc = chain_initialize(); 106 if ( rc ) { 107 return rc; 108 } 109 110 rc = pbind_initialize(); 111 if ( rc ) { 112 return rc; 113 } 114 115 #ifdef SLAP_DISTPROC 116 rc = distproc_initialize(); 117 if ( rc ) { 118 return rc; 119 } 120 #endif 121 122 return ldap_back_init_cf( bi ); 123 } 124 125 int 126 ldap_back_db_init( Backend *be, ConfigReply *cr ) 127 { 128 ldapinfo_t *li; 129 int rc; 130 unsigned i; 131 132 li = (ldapinfo_t *)ch_calloc( 1, sizeof( ldapinfo_t ) ); 133 if ( li == NULL ) { 134 return -1; 135 } 136 137 li->li_rebind_f = ldap_back_default_rebind; 138 li->li_urllist_f = ldap_back_default_urllist; 139 li->li_urllist_p = li; 140 ldap_pvt_thread_mutex_init( &li->li_uri_mutex ); 141 142 BER_BVZERO( &li->li_acl_authcID ); 143 BER_BVZERO( &li->li_acl_authcDN ); 144 BER_BVZERO( &li->li_acl_passwd ); 145 146 li->li_acl_authmethod = LDAP_AUTH_NONE; 147 BER_BVZERO( &li->li_acl_sasl_mech ); 148 li->li_acl.sb_tls = SB_TLS_DEFAULT; 149 150 li->li_idassert_mode = LDAP_BACK_IDASSERT_LEGACY; 151 152 BER_BVZERO( &li->li_idassert_authcID ); 153 BER_BVZERO( &li->li_idassert_authcDN ); 154 BER_BVZERO( &li->li_idassert_passwd ); 155 156 BER_BVZERO( &li->li_idassert_authzID ); 157 158 li->li_idassert_authmethod = LDAP_AUTH_NONE; 159 BER_BVZERO( &li->li_idassert_sasl_mech ); 160 li->li_idassert_tls = SB_TLS_DEFAULT; 161 162 /* by default, use proxyAuthz control on each operation */ 163 li->li_idassert_flags = LDAP_BACK_AUTH_PRESCRIPTIVE; 164 165 li->li_idassert_authz = NULL; 166 167 /* initialize flags */ 168 li->li_flags = LDAP_BACK_F_CHASE_REFERRALS; 169 170 /* initialize version */ 171 li->li_version = LDAP_VERSION3; 172 173 ldap_pvt_thread_mutex_init( &li->li_conninfo.lai_mutex ); 174 175 for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) { 176 li->li_conn_priv[ i ].lic_num = 0; 177 LDAP_TAILQ_INIT( &li->li_conn_priv[ i ].lic_priv ); 178 } 179 li->li_conn_priv_max = LDAP_BACK_CONN_PRIV_DEFAULT; 180 181 be->be_private = li; 182 SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD; 183 184 be->be_cf_ocs = be->bd_info->bi_cf_ocs; 185 186 rc = ldap_back_monitor_db_init( be ); 187 if ( rc != 0 ) { 188 /* ignore, by now */ 189 rc = 0; 190 } 191 192 return rc; 193 } 194 195 int 196 ldap_back_db_open( BackendDB *be, ConfigReply *cr ) 197 { 198 ldapinfo_t *li = (ldapinfo_t *)be->be_private; 199 200 slap_bindconf sb = { BER_BVNULL }; 201 int rc = 0; 202 203 Debug( LDAP_DEBUG_TRACE, 204 "ldap_back_db_open: URI=%s\n", 205 li->li_uri != NULL ? li->li_uri : "", 0, 0 ); 206 207 /* by default, use proxyAuthz control on each operation */ 208 switch ( li->li_idassert_mode ) { 209 case LDAP_BACK_IDASSERT_LEGACY: 210 case LDAP_BACK_IDASSERT_SELF: 211 /* however, since admin connections are pooled and shared, 212 * only static authzIDs can be native */ 213 li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ; 214 break; 215 216 default: 217 break; 218 } 219 220 ber_str2bv( li->li_uri, 0, 0, &sb.sb_uri ); 221 sb.sb_version = li->li_version; 222 sb.sb_method = LDAP_AUTH_SIMPLE; 223 BER_BVSTR( &sb.sb_binddn, "" ); 224 225 if ( LDAP_BACK_T_F_DISCOVER( li ) && !LDAP_BACK_T_F( li ) ) { 226 rc = slap_discover_feature( &sb, 227 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val, 228 LDAP_FEATURE_ABSOLUTE_FILTERS ); 229 if ( rc == LDAP_COMPARE_TRUE ) { 230 li->li_flags |= LDAP_BACK_F_T_F; 231 } 232 } 233 234 if ( LDAP_BACK_CANCEL_DISCOVER( li ) && !LDAP_BACK_CANCEL( li ) ) { 235 rc = slap_discover_feature( &sb, 236 slap_schema.si_ad_supportedExtension->ad_cname.bv_val, 237 LDAP_EXOP_CANCEL ); 238 if ( rc == LDAP_COMPARE_TRUE ) { 239 li->li_flags |= LDAP_BACK_F_CANCEL_EXOP; 240 } 241 } 242 243 /* monitor setup */ 244 rc = ldap_back_monitor_db_open( be ); 245 if ( rc != 0 ) { 246 /* ignore by now */ 247 rc = 0; 248 } 249 250 li->li_flags |= LDAP_BACK_F_ISOPEN; 251 252 return rc; 253 } 254 255 void 256 ldap_back_conn_free( void *v_lc ) 257 { 258 ldapconn_t *lc = v_lc; 259 260 if ( lc->lc_ld != NULL ) { 261 ldap_unbind_ext( lc->lc_ld, NULL, NULL ); 262 } 263 if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) { 264 ch_free( lc->lc_bound_ndn.bv_val ); 265 } 266 if ( !BER_BVISNULL( &lc->lc_cred ) ) { 267 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len ); 268 ch_free( lc->lc_cred.bv_val ); 269 } 270 if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) { 271 ch_free( lc->lc_local_ndn.bv_val ); 272 } 273 lc->lc_q.tqe_prev = NULL; 274 lc->lc_q.tqe_next = NULL; 275 ch_free( lc ); 276 } 277 278 int 279 ldap_back_db_close( Backend *be, ConfigReply *cr ) 280 { 281 int rc = 0; 282 283 if ( be->be_private ) { 284 rc = ldap_back_monitor_db_close( be ); 285 } 286 287 return rc; 288 } 289 290 int 291 ldap_back_db_destroy( Backend *be, ConfigReply *cr ) 292 { 293 if ( be->be_private ) { 294 ldapinfo_t *li = ( ldapinfo_t * )be->be_private; 295 unsigned i; 296 297 (void)ldap_back_monitor_db_destroy( be ); 298 299 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex ); 300 301 if ( li->li_uri != NULL ) { 302 ch_free( li->li_uri ); 303 li->li_uri = NULL; 304 305 assert( li->li_bvuri != NULL ); 306 ber_bvarray_free( li->li_bvuri ); 307 li->li_bvuri = NULL; 308 } 309 310 bindconf_free( &li->li_tls ); 311 bindconf_free( &li->li_acl ); 312 bindconf_free( &li->li_idassert.si_bc ); 313 314 if ( li->li_idassert_authz != NULL ) { 315 ber_bvarray_free( li->li_idassert_authz ); 316 li->li_idassert_authz = NULL; 317 } 318 if ( li->li_conninfo.lai_tree ) { 319 avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free ); 320 } 321 for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) { 322 while ( !LDAP_TAILQ_EMPTY( &li->li_conn_priv[ i ].lic_priv ) ) { 323 ldapconn_t *lc = LDAP_TAILQ_FIRST( &li->li_conn_priv[ i ].lic_priv ); 324 325 LDAP_TAILQ_REMOVE( &li->li_conn_priv[ i ].lic_priv, lc, lc_q ); 326 ldap_back_conn_free( lc ); 327 } 328 } 329 if ( LDAP_BACK_QUARANTINE( li ) ) { 330 slap_retry_info_destroy( &li->li_quarantine ); 331 ldap_pvt_thread_mutex_destroy( &li->li_quarantine_mutex ); 332 } 333 334 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex ); 335 ldap_pvt_thread_mutex_destroy( &li->li_conninfo.lai_mutex ); 336 ldap_pvt_thread_mutex_destroy( &li->li_uri_mutex ); 337 } 338 339 ch_free( be->be_private ); 340 341 return 0; 342 } 343 344 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC 345 346 /* conditionally define the init_module() function */ 347 SLAP_BACKEND_INIT_MODULE( ldap ) 348 349 #endif /* SLAPD_LDAP == SLAPD_MOD_DYNAMIC */ 350 351