git.sur5r.net Git - openldap/blob - servers/slapd/back-ldap/init.c

   1 /* init.c - initialize ldap backend */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2004 The OpenLDAP Foundation.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * Portions Copyright 2000-2003 Pierangelo Masarati.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by the Howard Chu for inclusion
  20  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  21  * Masarati.
  22  */
  23
  24 #include "portable.h"
  25
  26 #include <stdio.h>
  27
  28 #include <ac/string.h>
  29 #include <ac/socket.h>
  30
  31 #include "slap.h"
  32 #include "back-ldap.h"
  33
  34 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
  35
  36 int init_module(int argc, char *argv[]) {
  37     BackendInfo bi;
  38
  39     memset( &bi, '\0', sizeof(bi) );
  40     bi.bi_type = "ldap";
  41     bi.bi_init = ldap_back_initialize;
  42
  43     backend_add(&bi);
  44     return 0;
  45 }
  46
  47 #endif /* SLAPD_LDAP */
  48
  49 int
  50 ldap_back_open(
  51         BackendInfo *bi
  52 )
  53 {
  54         bi->bi_controls = slap_known_controls;
  55         return 0;
  56 }
  57
  58 int
  59 ldap_back_initialize(
  60     BackendInfo *bi
  61 )
  62 {
  63         bi->bi_open = ldap_back_open;
  64         bi->bi_config = 0;
  65         bi->bi_close = 0;
  66         bi->bi_destroy = 0;
  67
  68         bi->bi_db_init = ldap_back_db_init;
  69         bi->bi_db_config = ldap_back_db_config;
  70         bi->bi_db_open = ldap_back_db_open;
  71         bi->bi_db_close = 0;
  72         bi->bi_db_destroy = ldap_back_db_destroy;
  73
  74         bi->bi_op_bind = ldap_back_bind;
  75         bi->bi_op_unbind = 0;
  76         bi->bi_op_search = ldap_back_search;
  77         bi->bi_op_compare = ldap_back_compare;
  78         bi->bi_op_modify = ldap_back_modify;
  79         bi->bi_op_modrdn = ldap_back_modrdn;
  80         bi->bi_op_add = ldap_back_add;
  81         bi->bi_op_delete = ldap_back_delete;
  82         bi->bi_op_abandon = 0;
  83
  84         bi->bi_extended = ldap_back_extended;
  85
  86         bi->bi_chk_referrals = 0;
  87         bi->bi_entry_get_rw = ldap_back_entry_get;
  88
  89         bi->bi_connection_init = 0;
  90         bi->bi_connection_destroy = ldap_back_conn_destroy;
  91
  92         return 0;
  93 }
  94
  95 int
  96 ldap_back_db_init(
  97     Backend     *be
  98 )
  99 {
 100         struct ldapinfo *li;
 101         struct ldapmapping *mapping;
 102
 103         li = (struct ldapinfo *) ch_calloc( 1, sizeof(struct ldapinfo) );
 104         if ( li == NULL ) {
 105                 return -1;
 106         }
 107
 108         BER_BVZERO( &li->acl_authcDN );
 109         BER_BVZERO( &li->acl_passwd );
 110
 111 #ifdef LDAP_BACK_PROXY_AUTHZ
 112         li->idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 113
 114         BER_BVZERO( &li->idassert_authcID );
 115         BER_BVZERO( &li->idassert_authcDN );
 116         BER_BVZERO( &li->idassert_passwd );
 117
 118         BER_BVZERO( &li->idassert_authzID );
 119         li->idassert_authz = NULL;
 120
 121         li->idassert_authmethod = LDAP_AUTH_SIMPLE;
 122         li->idassert_sasl_flags = LDAP_SASL_QUIET;
 123         BER_BVZERO( &li->idassert_sasl_mech );
 124         BER_BVZERO( &li->idassert_sasl_realm );
 125
 126         li->idassert_ppolicy = 0;
 127
 128         /* by default, use proxyAuthz control on each operation */
 129         li->idassert_flags = LDAP_BACK_AUTH_NONE;
 130 #endif /* LDAP_BACK_PROXY_AUTHZ */
 131
 132 #ifdef ENABLE_REWRITE
 133         li->rwmap.rwm_rw = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
 134         if ( li->rwmap.rwm_rw == NULL ) {
 135                 ch_free( li );
 136                 return -1;
 137         }
 138
 139         {
 140                 char    *rargv[3];
 141
 142                 /*
 143                  * the filter rewrite as a string must be disabled
 144                  * by default; it can be re-enabled by adding rules;
 145                  * this creates an empty rewriteContext
 146                  */
 147                 rargv[ 0 ] = "rewriteContext";
 148                 rargv[ 1 ] = "searchFilter";
 149                 rargv[ 2 ] = NULL;
 150                 rewrite_parse( li->rwmap.rwm_rw, "<suffix massage>",
 151                                 1, 2, rargv );
 152
 153                 rargv[ 0 ] = "rewriteContext";
 154                 rargv[ 1 ] = "default";
 155                 rargv[ 2 ] = NULL;
 156                 rewrite_parse( li->rwmap.rwm_rw, "<suffix massage>",
 157                                 1, 2, rargv );
 158         }
 159 #endif /* ENABLE_REWRITE */
 160
 161         ldap_pvt_thread_mutex_init( &li->conn_mutex );
 162
 163         ldap_back_map_init( &li->rwmap.rwm_oc, &mapping );
 164         ldap_back_map_init( &li->rwmap.rwm_at, &mapping );
 165
 166         be->be_private = li;
 167         SLAP_DBFLAGS(be) |= SLAP_DBFLAG_NOLASTMOD;
 168
 169         return 0;
 170 }
 171
 172 int
 173 ldap_back_db_open( BackendDB *be )
 174 {
 175         struct ldapinfo *li = (struct ldapinfo *)be->be_private;
 176
 177         Debug( LDAP_DEBUG_TRACE,
 178                 "ldap_back_db_open: URI=%s\n",  li->url, 0, 0 );
 179
 180 #ifdef LDAP_BACK_PROXY_AUTHZ
 181         /* by default, use proxyAuthz control on each operation */
 182         switch ( li->idassert_mode ) {
 183         case LDAP_BACK_IDASSERT_LEGACY:
 184         case LDAP_BACK_IDASSERT_SELF:
 185                 /* however, since admin connections are pooled and shared,
 186                  * only static authzIDs can be native */
 187                 li->idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 188                 break;
 189
 190         default:
 191                 break;
 192         }
 193 #endif /* LDAP_BACK_PROXY_AUTHZ */
 194
 195         return 0;
 196 }
 197
 198 void
 199 ldap_back_conn_free(
 200         void *v_lc
 201 )
 202 {
 203         struct ldapconn *lc = v_lc;
 204         ldap_unbind( lc->ld );
 205         if ( lc->bound_dn.bv_val ) {
 206                 ch_free( lc->bound_dn.bv_val );
 207         }
 208         if ( lc->cred.bv_val ) {
 209                 memset( lc->cred.bv_val, 0, lc->cred.bv_len );
 210                 ch_free( lc->cred.bv_val );
 211         }
 212         if ( lc->local_dn.bv_val ) {
 213                 ch_free( lc->local_dn.bv_val );
 214         }
 215         ldap_pvt_thread_mutex_destroy( &lc->lc_mutex );
 216         ch_free( lc );
 217 }
 218
 219 static void
 220 mapping_free( void *v_mapping )
 221 {
 222         struct ldapmapping *mapping = v_mapping;
 223         ch_free( mapping->src.bv_val );
 224         ch_free( mapping->dst.bv_val );
 225         ch_free( mapping );
 226 }
 227
 228 int
 229 ldap_back_db_destroy(
 230     Backend     *be
 231 )
 232 {
 233         struct ldapinfo *li;
 234
 235         if (be->be_private) {
 236                 li = (struct ldapinfo *)be->be_private;
 237
 238                 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
 239
 240                 if (li->url) {
 241                         ch_free(li->url);
 242                         li->url = NULL;
 243                 }
 244                 if ( li->lud ) {
 245                         ldap_free_urldesc( li->lud );
 246                         li->lud = NULL;
 247                 }
 248                 if ( !BER_BVISNULL( &li->acl_authcDN ) ) {
 249                         ch_free( li->acl_authcDN.bv_val );
 250                         BER_BVZERO( &li->acl_authcDN );
 251                 }
 252                 if ( !BER_BVISNULL( &li->acl_passwd ) ) {
 253                         ch_free( li->acl_passwd.bv_val );
 254                         BER_BVZERO( &li->acl_passwd );
 255                 }
 256 #ifdef LDAP_BACK_PROXY_AUTHZ
 257                 if ( !BER_BVISNULL( &li->idassert_authcID ) ) {
 258                         ch_free( li->idassert_authcID.bv_val );
 259                         BER_BVZERO( &li->idassert_authcID );
 260                 }
 261                 if ( !BER_BVISNULL( &li->idassert_authcDN ) ) {
 262                         ch_free( li->idassert_authcDN.bv_val );
 263                         BER_BVZERO( &li->idassert_authcDN );
 264                 }
 265                 if ( !BER_BVISNULL( &li->idassert_passwd ) ) {
 266                         ch_free( li->idassert_passwd.bv_val );
 267                         BER_BVZERO( &li->idassert_passwd );
 268                 }
 269                 if ( !BER_BVISNULL( &li->idassert_authzID ) ) {
 270                         ch_free( li->idassert_authzID.bv_val );
 271                         BER_BVZERO( &li->idassert_authzID );
 272                 }
 273                 if ( !BER_BVISNULL( &li->idassert_sasl_mech ) ) {
 274                         ch_free( li->idassert_sasl_mech.bv_val );
 275                         BER_BVZERO( &li->idassert_sasl_mech );
 276                 }
 277                 if ( !BER_BVISNULL( &li->idassert_sasl_realm ) ) {
 278                         ch_free( li->idassert_sasl_realm.bv_val );
 279                         BER_BVZERO( &li->idassert_sasl_realm );
 280                 }
 281 #endif /* LDAP_BACK_PROXY_AUTHZ */
 282                 if (li->conntree) {
 283                         avl_free( li->conntree, ldap_back_conn_free );
 284                 }
 285 #ifdef ENABLE_REWRITE
 286                 if (li->rwmap.rwm_rw) {
 287                         rewrite_info_delete( &li->rwmap.rwm_rw );
 288                 }
 289 #else /* !ENABLE_REWRITE */
 290                 if (li->rwmap.rwm_suffix_massage) {
 291                         ber_bvarray_free( li->rwmap.rwm_suffix_massage );
 292                 }
 293 #endif /* !ENABLE_REWRITE */
 294
 295                 avl_free( li->rwmap.rwm_oc.remap, NULL );
 296                 avl_free( li->rwmap.rwm_oc.map, mapping_free );
 297                 avl_free( li->rwmap.rwm_at.remap, NULL );
 298                 avl_free( li->rwmap.rwm_at.map, mapping_free );
 299
 300                 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
 301                 ldap_pvt_thread_mutex_destroy( &li->conn_mutex );
 302         }
 303
 304         ch_free( be->be_private );
 305         return 0;
 306 }