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