git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/dn2id.c

   1 /* dn2id.c - routines to deal with the dn2id index */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11 #include <ac/string.h>
  12
  13 #include "back-bdb.h"
  14
  15 int
  16 bdb_dn2id_add(
  17         BackendDB       *be,
  18         DB_TXN *txn,
  19         const char      *dn,
  20         ID              id
  21 )
  22 {
  23         int             rc;
  24         DBT             key, data;
  25         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  26         DB *db = bdb->bi_dn2id->bdi_db;
  27
  28         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_add( \"%s\", 0x%08lx )\n",
  29                 dn, id, 0 );
  30         assert( id != NOID );
  31
  32         DBTzero( &key );
  33         key.size = strlen( dn ) + 2;
  34         key.data = ch_malloc( key.size );
  35         ((char *)key.data)[0] = DN_BASE_PREFIX;
  36         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
  37
  38         DBTzero( &data );
  39         data.data = (char *) &id;
  40         data.size = sizeof( id );
  41
  42         /* store it -- don't override */
  43         rc = db->put( db, txn, &key, &data, DB_NOOVERWRITE );
  44         if( rc != 0 ) {
  45                 Debug( LDAP_DEBUG_ANY, "=> bdb_dn2id_add: put failed: %s %d\n",
  46                         db_strerror(rc), rc, 0 );
  47                 goto done;
  48         }
  49
  50         {
  51                 char *pdn = dn_parent( NULL, dn );
  52                 ((char *)(key.data))[0] = DN_ONE_PREFIX;
  53
  54                 if( pdn != NULL ) {
  55                         key.size = strlen( pdn ) + 2;
  56                         AC_MEMCPY( &((char*)key.data)[1],
  57                                 pdn, key.size - 1 );
  58
  59                         rc = bdb_idl_insert_key( be, db, txn, &key, id );
  60
  61                         if( rc != 0 ) {
  62                                 Debug( LDAP_DEBUG_ANY,
  63                                         "=> bdb_dn2id_add: parent (%s) insert failed: %d\n",
  64                                         pdn, rc, 0 );
  65                                 free( pdn );
  66                                 goto done;
  67                         }
  68                         free( pdn );
  69                 }
  70         }
  71
  72         {
  73                 char **subtree = dn_subtree( NULL, dn );
  74
  75                 if( subtree != NULL ) {
  76                         int i;
  77                         ((char *)key.data)[0] = DN_SUBTREE_PREFIX;
  78                         for( i=0; subtree[i] != NULL; i++ ) {
  79                                 key.size = strlen( subtree[i] ) + 2;
  80                                 AC_MEMCPY( &((char *)key.data)[1],
  81                                         subtree[i], key.size - 1 );
  82
  83                                 rc = bdb_idl_insert_key( be, db, txn, &key, id );
  84
  85                                 if( rc != 0 ) {
  86                                         Debug( LDAP_DEBUG_ANY,
  87                                                 "=> bdb_dn2id_add: subtree (%s) insert failed: %d\n",
  88                                                 subtree[i], rc, 0 );
  89                                         break;
  90                                 }
  91                         }
  92
  93                         charray_free( subtree );
  94                 }
  95         }
  96
  97 done:
  98         ch_free( key.data );
  99         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_add: %d\n", rc, 0, 0 );
 100         return rc;
 101 }
 102
 103 int
 104 bdb_dn2id_delete(
 105         BackendDB       *be,
 106         DB_TXN *txn,
 107         const char      *dn,
 108         ID              id )
 109 {
 110         int             rc;
 111         DBT             key;
 112         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 113         DB *db = bdb->bi_dn2id->bdi_db;
 114
 115         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_delete( \"%s\", 0x%08lx )\n",
 116                 dn, id, 0 );
 117
 118         DBTzero( &key );
 119         key.size = strlen( dn ) + 2;
 120         key.data = ch_malloc( key.size );
 121         ((char *)key.data)[0] = DN_BASE_PREFIX;
 122         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 123
 124         /* store it -- don't override */
 125         rc = db->del( db, txn, &key, 0 );
 126         if( rc != 0 ) {
 127                 Debug( LDAP_DEBUG_ANY, "=> bdb_dn2id_delete: delete failed: %s %d\n",
 128                         db_strerror(rc), rc, 0 );
 129                 goto done;
 130         }
 131
 132         {
 133                 char *pdn = dn_parent( NULL, dn );
 134                 ((char *)(key.data))[0] = DN_ONE_PREFIX;
 135
 136                 if( pdn != NULL ) {
 137                         key.size = strlen( pdn ) + 2;
 138                         AC_MEMCPY( &((char*)key.data)[1],
 139                                 pdn, key.size - 1 );
 140
 141                         rc = bdb_idl_delete_key( be, db, txn, &key, id );
 142
 143                         if( rc != 0 ) {
 144                                 Debug( LDAP_DEBUG_ANY,
 145                                         "=> bdb_dn2id_delete: parent (%s) delete failed: %d\n",
 146                                         pdn, rc, 0 );
 147                                 free( pdn );
 148                                 goto done;
 149                         }
 150                         free( pdn );
 151                 }
 152         }
 153
 154         {
 155                 char **subtree = dn_subtree( NULL, dn );
 156
 157                 if( subtree != NULL ) {
 158                         int i;
 159                         ((char *)key.data)[0] = DN_SUBTREE_PREFIX;
 160                         for( i=0; subtree[i] != NULL; i++ ) {
 161                                 key.size = strlen( subtree[i] ) + 2;
 162                                 AC_MEMCPY( &((char *)key.data)[1],
 163                                         subtree[i], key.size - 1 );
 164
 165                                 rc = bdb_idl_delete_key( be, db, txn, &key, id );
 166
 167                                 if( rc != 0 ) {
 168                                         Debug( LDAP_DEBUG_ANY,
 169                                                 "=> bdb_dn2id_delete: subtree (%s) delete failed: %d\n",
 170                                                 subtree[i], rc, 0 );
 171                                         charray_free( subtree );
 172                                         goto done;
 173                                 }
 174                         }
 175
 176                         charray_free( subtree );
 177                 }
 178         }
 179
 180 done:
 181         ch_free( key.data );
 182         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_delete %d\n", rc, 0, 0 );
 183         return rc;
 184 }
 185
 186 int
 187 bdb_dn2id(
 188         BackendDB       *be,
 189         DB_TXN *txn,
 190         const char      *dn,
 191         ID *id )
 192 {
 193         int             rc;
 194         DBT             key, data;
 195         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 196         DB *db = bdb->bi_dn2id->bdi_db;
 197
 198         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id( \"%s\" )\n", dn, 0, 0 );
 199
 200         DBTzero( &key );
 201         key.size = strlen( dn ) + 2;
 202         key.data = ch_malloc( key.size );
 203         ((char *)key.data)[0] = DN_BASE_PREFIX;
 204         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 205
 206         /* store the ID */
 207         DBTzero( &data );
 208         data.data = id;
 209         data.ulen = sizeof(ID);
 210         data.flags = DB_DBT_USERMEM;
 211
 212         /* fetch it */
 213         rc = db->get( db, txn, &key, &data, 0 );
 214
 215         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: id=0x%08lx: %s (%d)\n",
 216                 id, db_strerror( rc ), rc );
 217
 218         ch_free( key.data );
 219         return rc;
 220 }
 221
 222 int
 223 bdb_dn2id_matched(
 224         BackendDB       *be,
 225         DB_TXN *txn,
 226         const char      *in,
 227         ID *id,
 228         char **matchedDN )
 229 {
 230         int             rc;
 231         DBT             key, data;
 232         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 233         DB *db = bdb->bi_dn2id->bdi_db;
 234         const char *dn = in;
 235         char *tmp = NULL;
 236
 237         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_matched( \"%s\" )\n", dn, 0, 0 );
 238
 239         DBTzero( &key );
 240         key.size = strlen( dn ) + 2;
 241         key.data = ch_malloc( key.size );
 242         ((char *)key.data)[0] = DN_BASE_PREFIX;
 243
 244         /* store the ID */
 245         DBTzero( &data );
 246         data.data = id;
 247         data.ulen = sizeof(ID);
 248         data.flags = DB_DBT_USERMEM;
 249
 250         *matchedDN = NULL;
 251
 252         while(1) {
 253                 AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 254
 255                 *id = NOID;
 256
 257                 /* fetch it */
 258                 rc = db->get( db, txn, &key, &data, 0 );
 259
 260                 if( rc == DB_NOTFOUND ) {
 261                         char *pdn = dn_parent( be, dn );
 262                         ch_free( tmp );
 263                         tmp = NULL;
 264
 265                         if( pdn == NULL || *pdn == '\0' ) {
 266                                 Debug( LDAP_DEBUG_TRACE,
 267                                         "<= bdb_dn2id_matched: no match\n",
 268                                         0, 0, 0 );
 269                                 ch_free( pdn );
 270                                 break;
 271                         }
 272
 273                         dn = pdn;
 274                         tmp = pdn;
 275                         key.size = strlen( dn ) + 2;
 276
 277                 } else if ( rc == 0 ) {
 278                         if( data.size != sizeof( ID ) ) {
 279                                 Debug( LDAP_DEBUG_ANY,
 280                                         "<= bdb_dn2id_matched: get size mismatch: "
 281                                         "expected %ld, got %ld\n",
 282                                         (long) sizeof(ID), (long) data.size, 0 );
 283                                 ch_free( tmp );
 284                         }
 285
 286                         if( in != dn ) {
 287                                 *matchedDN = (char *) dn;
 288                         }
 289
 290                         Debug( LDAP_DEBUG_TRACE,
 291                                 "<= bdb_dn2id_matched: id=0x%08lx: %s\n",
 292                                 *id, dn, 0 );
 293                         break;
 294
 295                 } else {
 296                         Debug( LDAP_DEBUG_ANY,
 297                                 "<= bdb_dn2id_matched: get failed: %s (%d)\n",
 298                                 db_strerror(rc), rc, 0 );
 299                         ch_free( tmp );
 300                         break;
 301                 }
 302         }
 303
 304         ch_free( key.data );
 305         return rc;
 306 }
 307
 308 int
 309 bdb_dn2id_children(
 310         BackendDB       *be,
 311         DB_TXN *txn,
 312         const char *dn )
 313 {
 314         int             rc;
 315         DBT             key, data;
 316         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 317         DB *db = bdb->bi_dn2id->bdi_db;
 318         ID              id;
 319
 320         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_children( %s )\n",
 321                 dn, 0, 0 );
 322
 323         DBTzero( &key );
 324         key.size = strlen( dn ) + 2;
 325         key.data = ch_malloc( key.size );
 326         ((char *)key.data)[0] = DN_ONE_PREFIX;
 327         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 328
 329         /* we actually could do a empty get... */
 330         DBTzero( &data );
 331         data.data = &id;
 332         data.ulen = sizeof(id);
 333         data.flags = DB_DBT_USERMEM;
 334         data.doff = 0;
 335         data.dlen = sizeof(id);
 336
 337         rc = db->get( db, txn, &key, &data, 0 );
 338
 339         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_children( %s ): %s (%d)\n",
 340                 dn,
 341                 rc == 0 ? "yes" : ( rc == DB_NOTFOUND ? "no" :
 342                         db_strerror(rc) ), rc );
 343
 344         return rc;
 345 }