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 #include "external.h"
  34
  35 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
  36
  37 int init_module(int argc, char *argv[]) {
  38     BackendInfo bi;
  39
  40     memset( &bi, '\0', sizeof(bi) );
  41     bi.bi_type = "ldap";
  42     bi.bi_init = ldap_back_initialize;
  43
  44     backend_add(&bi);
  45     return 0;
  46 }
  47
  48 #endif /* SLAPD_LDAP */
  49
  50 int
  51 ldap_back_open(
  52         BackendInfo *bi
  53 )
  54 {
  55         bi->bi_controls = slap_known_controls;
  56         return 0;
  57 }
  58
  59 int
  60 ldap_back_initialize(
  61     BackendInfo *bi
  62 )
  63 {
  64         bi->bi_open = ldap_back_open;
  65         bi->bi_config = 0;
  66         bi->bi_close = 0;
  67         bi->bi_destroy = 0;
  68
  69         bi->bi_db_init = ldap_back_db_init;
  70         bi->bi_db_config = ldap_back_db_config;
  71         bi->bi_db_open = ldap_back_db_open;
  72         bi->bi_db_close = 0;
  73         bi->bi_db_destroy = ldap_back_db_destroy;
  74
  75         bi->bi_op_bind = ldap_back_bind;
  76         bi->bi_op_unbind = 0;
  77         bi->bi_op_search = ldap_back_search;
  78         bi->bi_op_compare = ldap_back_compare;
  79         bi->bi_op_modify = ldap_back_modify;
  80         bi->bi_op_modrdn = ldap_back_modrdn;
  81         bi->bi_op_add = ldap_back_add;
  82         bi->bi_op_delete = ldap_back_delete;
  83         bi->bi_op_abandon = 0;
  84
  85         bi->bi_extended = ldap_back_extended;
  86
  87         bi->bi_chk_referrals = 0;
  88         bi->bi_entry_get_rw = ldap_back_entry_get;
  89
  90         bi->bi_connection_init = 0;
  91         bi->bi_connection_destroy = ldap_back_conn_destroy;
  92
  93         return 0;
  94 }
  95
  96 int
  97 ldap_back_db_init(
  98     Backend     *be
  99 )
 100 {
 101         struct ldapinfo *li;
 102         struct ldapmapping *mapping;
 103
 104         li = (struct ldapinfo *) ch_calloc( 1, sizeof(struct ldapinfo) );
 105         if ( li == NULL ) {
 106                 return -1;
 107         }
 108
 109         BER_BVZERO( &li->acl_authcDN );
 110         BER_BVZERO( &li->acl_passwd );
 111
 112 #ifdef LDAP_BACK_PROXY_AUTHZ
 113         li->idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 114
 115         BER_BVZERO( &li->idassert_authcID );
 116         BER_BVZERO( &li->idassert_authcDN );
 117         BER_BVZERO( &li->idassert_passwd );
 118
 119         BER_BVZERO( &li->idassert_authzID );
 120         li->idassert_authz = NULL;
 121
 122         li->idassert_authmethod = LDAP_AUTH_SIMPLE;
 123         li->idassert_sasl_flags = LDAP_SASL_QUIET;
 124         BER_BVZERO( &li->idassert_sasl_mech );
 125         BER_BVZERO( &li->idassert_sasl_realm );
 126
 127         li->idassert_ppolicy = 0;
 128
 129         /* by default, use proxyAuthz control on each operation */
 130         li->idassert_flags = LDAP_BACK_AUTH_NONE;
 131 #endif /* LDAP_BACK_PROXY_AUTHZ */
 132
 133 #ifdef ENABLE_REWRITE
 134         li->rwmap.rwm_rw = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
 135         if ( li->rwmap.rwm_rw == NULL ) {
 136                 ch_free( li );
 137                 return -1;
 138         }
 139
 140         {
 141                 char    *rargv[3];
 142
 143                 /*
 144                  * the filter rewrite as a string must be disabled
 145                  * by default; it can be re-enabled by adding rules;
 146                  * this creates an empty rewriteContext
 147                  */
 148                 rargv[ 0 ] = "rewriteContext";
 149                 rargv[ 1 ] = "searchFilter";
 150                 rargv[ 2 ] = NULL;
 151                 rewrite_parse( li->rwmap.rwm_rw, "<suffix massage>",
 152                                 1, 2, rargv );
 153
 154                 rargv[ 0 ] = "rewriteContext";
 155                 rargv[ 1 ] = "default";
 156                 rargv[ 2 ] = NULL;
 157                 rewrite_parse( li->rwmap.rwm_rw, "<suffix massage>",
 158                                 1, 2, rargv );
 159         }
 160 #endif /* ENABLE_REWRITE */
 161
 162         ldap_pvt_thread_mutex_init( &li->conn_mutex );
 163
 164         ldap_back_map_init( &li->rwmap.rwm_oc, &mapping );
 165         ldap_back_map_init( &li->rwmap.rwm_at, &mapping );
 166
 167         be->be_private = li;
 168         SLAP_DBFLAGS(be) |= SLAP_DBFLAG_NOLASTMOD;
 169
 170         return 0;
 171 }
 172
 173 int
 174 ldap_back_db_open( BackendDB *be )
 175 {
 176         struct ldapinfo *li = (struct ldapinfo *)be->be_private;
 177
 178         Debug( LDAP_DEBUG_TRACE,
 179                 "ldap_back_db_open: URI=%s\n",  li->url, 0, 0 );
 180
 181 #ifdef LDAP_BACK_PROXY_AUTHZ
 182         /* by default, use proxyAuthz control on each operation */
 183         switch ( li->idassert_mode ) {
 184         case LDAP_BACK_IDASSERT_LEGACY:
 185         case LDAP_BACK_IDASSERT_SELF:
 186                 /* however, since admin connections are pooled and shared,
 187                  * only static authzIDs can be native */
 188                 li->idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 189                 break;
 190
 191         default:
 192                 break;
 193         }
 194 #endif /* LDAP_BACK_PROXY_AUTHZ */
 195
 196         return 0;
 197 }
 198
 199 void
 200 ldap_back_conn_free(
 201         void *v_lc
 202 )
 203 {
 204         struct ldapconn *lc = v_lc;
 205         ldap_unbind( lc->ld );
 206         if ( lc->bound_dn.bv_val ) {
 207                 ch_free( lc->bound_dn.bv_val );
 208         }
 209         if ( lc->cred.bv_val ) {
 210                 memset( lc->cred.bv_val, 0, lc->cred.bv_len );
 211                 ch_free( lc->cred.bv_val );
 212         }
 213         if ( lc->local_dn.bv_val ) {
 214                 ch_free( lc->local_dn.bv_val );
 215         }
 216         ldap_pvt_thread_mutex_destroy( &lc->lc_mutex );
 217         ch_free( lc );
 218 }
 219
 220 static void
 221 mapping_free( void *v_mapping )
 222 {
 223         struct ldapmapping *mapping = v_mapping;
 224         ch_free( mapping->src.bv_val );
 225         ch_free( mapping->dst.bv_val );
 226         ch_free( mapping );
 227 }
 228
 229 int
 230 ldap_back_db_destroy(
 231     Backend     *be
 232 )
 233 {
 234         struct ldapinfo *li;
 235
 236         if (be->be_private) {
 237                 li = (struct ldapinfo *)be->be_private;
 238
 239                 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
 240
 241                 if (li->url) {
 242                         ch_free(li->url);
 243                         li->url = NULL;
 244                 }
 245                 if ( li->lud ) {
 246                         ldap_free_urldesc( li->lud );
 247                         li->lud = NULL;
 248                 }
 249                 if ( !BER_BVISNULL( &li->acl_authcDN ) ) {
 250                         ch_free( li->acl_authcDN.bv_val );
 251                         BER_BVZERO( &li->acl_authcDN );
 252                 }
 253                 if ( !BER_BVISNULL( &li->acl_passwd ) ) {
 254                         ch_free( li->acl_passwd.bv_val );
 255                         BER_BVZERO( &li->acl_passwd );
 256                 }
 257 #ifdef LDAP_BACK_PROXY_AUTHZ
 258                 if ( !BER_BVISNULL( &li->idassert_authcID ) ) {
 259                         ch_free( li->idassert_authcID.bv_val );
 260                         BER_BVZERO( &li->idassert_authcID );
 261                 }
 262                 if ( !BER_BVISNULL( &li->idassert_authcDN ) ) {
 263                         ch_free( li->idassert_authcDN.bv_val );
 264                         BER_BVZERO( &li->idassert_authcDN );
 265                 }
 266                 if ( !BER_BVISNULL( &li->idassert_passwd ) ) {
 267                         ch_free( li->idassert_passwd.bv_val );
 268                         BER_BVZERO( &li->idassert_passwd );
 269                 }
 270                 if ( !BER_BVISNULL( &li->idassert_authzID ) ) {
 271                         ch_free( li->idassert_authzID.bv_val );
 272                         BER_BVZERO( &li->idassert_authzID );
 273                 }
 274                 if ( !BER_BVISNULL( &li->idassert_sasl_mech ) ) {
 275                         ch_free( li->idassert_sasl_mech.bv_val );
 276                         BER_BVZERO( &li->idassert_sasl_mech );
 277                 }
 278                 if ( !BER_BVISNULL( &li->idassert_sasl_realm ) ) {
 279                         ch_free( li->idassert_sasl_realm.bv_val );
 280                         BER_BVZERO( &li->idassert_sasl_realm );
 281                 }
 282 #endif /* LDAP_BACK_PROXY_AUTHZ */
 283                 if (li->conntree) {
 284                         avl_free( li->conntree, ldap_back_conn_free );
 285                 }
 286 #ifdef ENABLE_REWRITE
 287                 if (li->rwmap.rwm_rw) {
 288                         rewrite_info_delete( &li->rwmap.rwm_rw );
 289                 }
 290 #else /* !ENABLE_REWRITE */
 291                 if (li->rwmap.rwm_suffix_massage) {
 292                         ber_bvarray_free( li->rwmap.rwm_suffix_massage );
 293                 }
 294 #endif /* !ENABLE_REWRITE */
 295
 296                 avl_free( li->rwmap.rwm_oc.remap, NULL );
 297                 avl_free( li->rwmap.rwm_oc.map, mapping_free );
 298                 avl_free( li->rwmap.rwm_at.remap, NULL );
 299                 avl_free( li->rwmap.rwm_at.map, mapping_free );
 300
 301                 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
 302                 ldap_pvt_thread_mutex_destroy( &li->conn_mutex );
 303         }
 304
 305         ch_free( be->be_private );
 306         return 0;
 307 }