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 int
  37 init_module( int argc, char *argv[] )
  38 {
  39         BackendInfo     bi;
  40
  41         memset( &bi, '\0', sizeof( bi ) );
  42         bi.bi_type = "ldap";
  43         bi.bi_init = ldap_back_initialize;
  44
  45         backend_add( &bi );
  46
  47         return 0;
  48 }
  49
  50 #endif /* SLAPD_LDAP */
  51
  52 int
  53 ldap_back_open( BackendInfo     *bi )
  54 {
  55         bi->bi_controls = slap_known_controls;
  56         return 0;
  57 }
  58
  59 int
  60 ldap_back_initialize( BackendInfo *bi )
  61 {
  62         bi->bi_open = ldap_back_open;
  63         bi->bi_config = 0;
  64         bi->bi_close = 0;
  65         bi->bi_destroy = 0;
  66
  67         bi->bi_db_init = ldap_back_db_init;
  68         bi->bi_db_config = ldap_back_db_config;
  69         bi->bi_db_open = ldap_back_db_open;
  70         bi->bi_db_close = 0;
  71         bi->bi_db_destroy = ldap_back_db_destroy;
  72
  73         bi->bi_op_bind = ldap_back_bind;
  74         bi->bi_op_unbind = 0;
  75         bi->bi_op_search = ldap_back_search;
  76         bi->bi_op_compare = ldap_back_compare;
  77         bi->bi_op_modify = ldap_back_modify;
  78         bi->bi_op_modrdn = ldap_back_modrdn;
  79         bi->bi_op_add = ldap_back_add;
  80         bi->bi_op_delete = ldap_back_delete;
  81         bi->bi_op_abandon = 0;
  82
  83         bi->bi_extended = ldap_back_extended;
  84
  85         bi->bi_chk_referrals = 0;
  86         bi->bi_entry_get_rw = ldap_back_entry_get;
  87
  88         bi->bi_connection_init = 0;
  89         bi->bi_connection_destroy = ldap_back_conn_destroy;
  90
  91         return 0;
  92 }
  93
  94 int
  95 ldap_back_db_init( Backend *be )
  96 {
  97         struct ldapinfo *li;
  98
  99         li = (struct ldapinfo *)ch_calloc( 1, sizeof( struct ldapinfo ) );
 100         if ( li == NULL ) {
 101                 return -1;
 102         }
 103
 104         BER_BVZERO( &li->acl_authcDN );
 105         BER_BVZERO( &li->acl_passwd );
 106
 107 #ifdef LDAP_BACK_PROXY_AUTHZ
 108         li->idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 109
 110         BER_BVZERO( &li->idassert_authcID );
 111         BER_BVZERO( &li->idassert_authcDN );
 112         BER_BVZERO( &li->idassert_passwd );
 113
 114         BER_BVZERO( &li->idassert_authzID );
 115         li->idassert_authz = NULL;
 116
 117         li->idassert_authmethod = LDAP_AUTH_SIMPLE;
 118         li->idassert_sasl_flags = LDAP_SASL_QUIET;
 119         BER_BVZERO( &li->idassert_sasl_mech );
 120         BER_BVZERO( &li->idassert_sasl_realm );
 121
 122         li->idassert_ppolicy = 0;
 123
 124         /* by default, use proxyAuthz control on each operation */
 125         li->idassert_flags = LDAP_BACK_AUTH_NONE;
 126 #endif /* LDAP_BACK_PROXY_AUTHZ */
 127
 128         ldap_pvt_thread_mutex_init( &li->conn_mutex );
 129
 130         be->be_private = li;
 131         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD;
 132
 133         return 0;
 134 }
 135
 136 int
 137 ldap_back_db_open( BackendDB *be )
 138 {
 139         struct ldapinfo *li = (struct ldapinfo *)be->be_private;
 140
 141         Debug( LDAP_DEBUG_TRACE,
 142                 "ldap_back_db_open: URI=%s\n", li->url, 0, 0 );
 143
 144 #ifdef LDAP_BACK_PROXY_AUTHZ
 145         /* by default, use proxyAuthz control on each operation */
 146         switch ( li->idassert_mode ) {
 147         case LDAP_BACK_IDASSERT_LEGACY:
 148         case LDAP_BACK_IDASSERT_SELF:
 149                 /* however, since admin connections are pooled and shared,
 150                  * only static authzIDs can be native */
 151                 li->idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 152                 break;
 153
 154         default:
 155                 break;
 156         }
 157 #endif /* LDAP_BACK_PROXY_AUTHZ */
 158
 159 #ifdef SLAPD_MONITOR
 160         {
 161                 struct berval   filter,
 162                                 base = BER_BVC( "cn=Databases,cn=Monitor" );
 163                 const char      *text;
 164                 struct berval   vals[ 2 ];
 165                 Attribute       a = { 0 };
 166
 167                 filter.bv_len = STRLENOF( "(&(namingContexts=)(monitoredInfo=ldap))" )
 168                         + be->be_nsuffix[ 0 ].bv_len;
 169                 filter.bv_val = ch_malloc( filter.bv_len + 1 );
 170                 snprintf( filter.bv_val, filter.bv_len + 1,
 171                                 "(&(namingContexts=%s)(monitoredInfo=ldap))",
 172                                 be->be_nsuffix[ 0 ].bv_val );
 173
 174                 a.a_desc = slap_schema.si_ad_labeledURI;
 175                 ber_str2bv( li->url, 0, 0, &vals[ 0 ] );
 176                 BER_BVZERO( &vals[ 1 ] );
 177                 a.a_vals = vals;
 178                 a.a_nvals = vals;
 179                 if ( monitor_back_register_entry_attrs( NULL, &a, NULL, &base, LDAP_SCOPE_SUBTREE, &filter ) ) {
 180                         /* error */
 181                 }
 182         }
 183 #endif /* SLAPD_MONITOR */
 184
 185         return 0;
 186 }
 187
 188 void
 189 ldap_back_conn_free( void *v_lc )
 190 {
 191         struct ldapconn *lc = v_lc;
 192
 193         ldap_unbind_ext_s( lc->lc_ld, NULL, NULL );
 194         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 195                 ch_free( lc->lc_bound_ndn.bv_val );
 196         }
 197         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 198                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 199                 ch_free( lc->lc_cred.bv_val );
 200         }
 201         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 202                 ch_free( lc->lc_local_ndn.bv_val );
 203         }
 204         ldap_pvt_thread_mutex_destroy( &lc->lc_mutex );
 205         ch_free( lc );
 206 }
 207
 208 int
 209 ldap_back_db_destroy(
 210     Backend     *be
 211 )
 212 {
 213         struct ldapinfo *li;
 214
 215         if ( be->be_private ) {
 216                 li = ( struct ldapinfo * )be->be_private;
 217
 218                 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
 219
 220                 if ( li->url ) {
 221                         ch_free( li->url );
 222                         li->url = NULL;
 223                 }
 224                 if ( li->lud ) {
 225                         ldap_free_urldesc( li->lud );
 226                         li->lud = NULL;
 227                 }
 228                 if ( !BER_BVISNULL( &li->acl_authcDN ) ) {
 229                         ch_free( li->acl_authcDN.bv_val );
 230                         BER_BVZERO( &li->acl_authcDN );
 231                 }
 232                 if ( !BER_BVISNULL( &li->acl_passwd ) ) {
 233                         ch_free( li->acl_passwd.bv_val );
 234                         BER_BVZERO( &li->acl_passwd );
 235                 }
 236 #ifdef LDAP_BACK_PROXY_AUTHZ
 237                 if ( !BER_BVISNULL( &li->idassert_authcID ) ) {
 238                         ch_free( li->idassert_authcID.bv_val );
 239                         BER_BVZERO( &li->idassert_authcID );
 240                 }
 241                 if ( !BER_BVISNULL( &li->idassert_authcDN ) ) {
 242                         ch_free( li->idassert_authcDN.bv_val );
 243                         BER_BVZERO( &li->idassert_authcDN );
 244                 }
 245                 if ( !BER_BVISNULL( &li->idassert_passwd ) ) {
 246                         ch_free( li->idassert_passwd.bv_val );
 247                         BER_BVZERO( &li->idassert_passwd );
 248                 }
 249                 if ( !BER_BVISNULL( &li->idassert_authzID ) ) {
 250                         ch_free( li->idassert_authzID.bv_val );
 251                         BER_BVZERO( &li->idassert_authzID );
 252                 }
 253                 if ( !BER_BVISNULL( &li->idassert_sasl_mech ) ) {
 254                         ch_free( li->idassert_sasl_mech.bv_val );
 255                         BER_BVZERO( &li->idassert_sasl_mech );
 256                 }
 257                 if ( !BER_BVISNULL( &li->idassert_sasl_realm ) ) {
 258                         ch_free( li->idassert_sasl_realm.bv_val );
 259                         BER_BVZERO( &li->idassert_sasl_realm );
 260                 }
 261 #endif /* LDAP_BACK_PROXY_AUTHZ */
 262                 if ( li->conntree ) {
 263                         avl_free( li->conntree, ldap_back_conn_free );
 264                 }
 265
 266                 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
 267                 ldap_pvt_thread_mutex_destroy( &li->conn_mutex );
 268         }
 269
 270         ch_free( be->be_private );
 271
 272         return 0;
 273 }