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 #include "idl.h"
  15
  16 int
  17 bdb_dn2id_add(
  18         BackendDB       *be,
  19         DB_TXN *txn,
  20         const char      *pdn,
  21         Entry           *e )
  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                 e->e_ndn, (long) e->e_id, 0 );
  30         assert( e->e_id != NOID );
  31
  32         DBTzero( &key );
  33         key.size = strlen( e->e_ndn ) + 2;
  34         key.data = ch_malloc( key.size );
  35         ((char *)key.data)[0] = DN_BASE_PREFIX;
  36         AC_MEMCPY( &((char *)key.data)[1], e->e_ndn, key.size - 1 );
  37
  38         DBTzero( &data );
  39         data.data = (char *) &e->e_id;
  40         data.size = sizeof( e->e_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 *)(key.data))[0] = DN_ONE_PREFIX;
  52
  53                 if( pdn != NULL ) {
  54                         key.size = strlen( pdn ) + 2;
  55                         AC_MEMCPY( &((char*)key.data)[1],
  56                                 pdn, key.size - 1 );
  57
  58                         rc = bdb_idl_insert_key( be, db, txn, &key, e->e_id );
  59
  60                         if( rc != 0 ) {
  61                                 Debug( LDAP_DEBUG_ANY,
  62                                         "=> bdb_dn2id_add: parent (%s) insert failed: %d\n",
  63                                         pdn, rc, 0 );
  64                                 goto done;
  65                         }
  66                 }
  67         }
  68
  69         {
  70                 char **subtree = dn_subtree( be, e->e_ndn );
  71
  72                 if( subtree != NULL ) {
  73                         int i;
  74                         ((char *)key.data)[0] = DN_SUBTREE_PREFIX;
  75                         for( i=0; subtree[i] != NULL; i++ ) {
  76                                 key.size = strlen( subtree[i] ) + 2;
  77                                 AC_MEMCPY( &((char *)key.data)[1],
  78                                         subtree[i], key.size - 1 );
  79
  80                                 rc = bdb_idl_insert_key( be, db, txn, &key,
  81                                         e->e_id );
  82
  83                                 if( rc != 0 ) {
  84                                         Debug( LDAP_DEBUG_ANY,
  85                                                 "=> bdb_dn2id_add: subtree (%s) insert failed: %d\n",
  86                                                 subtree[i], rc, 0 );
  87                                         break;
  88                                 }
  89                         }
  90
  91                         charray_free( subtree );
  92                 }
  93         }
  94
  95 done:
  96         ch_free( key.data );
  97         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_add: %d\n", rc, 0, 0 );
  98         return rc;
  99 }
 100
 101 int
 102 bdb_dn2id_delete(
 103         BackendDB       *be,
 104         DB_TXN *txn,
 105         const char      *pdn,
 106         const char      *dn,
 107         ID              id )
 108 {
 109         int             rc;
 110         DBT             key;
 111         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 112         DB *db = bdb->bi_dn2id->bdi_db;
 113
 114         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_delete( \"%s\", 0x%08lx )\n",
 115                 dn, id, 0 );
 116
 117         DBTzero( &key );
 118         key.size = strlen( dn ) + 2;
 119         key.data = ch_malloc( key.size );
 120         ((char *)key.data)[0] = DN_BASE_PREFIX;
 121         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 122
 123         /* delete it */
 124         rc = db->del( db, txn, &key, 0 );
 125         if( rc != 0 ) {
 126                 Debug( LDAP_DEBUG_ANY, "=> bdb_dn2id_delete: delete failed: %s %d\n",
 127                         db_strerror(rc), rc, 0 );
 128                 goto done;
 129         }
 130
 131         {
 132                 ((char *)(key.data))[0] = DN_ONE_PREFIX;
 133
 134                 if( pdn != NULL ) {
 135                         key.size = strlen( pdn ) + 2;
 136                         AC_MEMCPY( &((char*)key.data)[1],
 137                                 pdn, key.size - 1 );
 138
 139                         rc = bdb_idl_delete_key( be, db, txn, &key, id );
 140
 141                         if( rc != 0 ) {
 142                                 Debug( LDAP_DEBUG_ANY,
 143                                         "=> bdb_dn2id_delete: parent (%s) delete failed: %d\n",
 144                                         pdn, rc, 0 );
 145                                 goto done;
 146                         }
 147                 }
 148         }
 149
 150         {
 151                 char **subtree = dn_subtree( be, dn );
 152
 153                 if( subtree != NULL ) {
 154                         int i;
 155                         ((char *)key.data)[0] = DN_SUBTREE_PREFIX;
 156                         for( i=0; subtree[i] != NULL; i++ ) {
 157                                 key.size = strlen( subtree[i] ) + 2;
 158                                 AC_MEMCPY( &((char *)key.data)[1],
 159                                         subtree[i], key.size - 1 );
 160
 161                                 rc = bdb_idl_delete_key( be, db, txn, &key, id );
 162
 163                                 if( rc != 0 ) {
 164                                         Debug( LDAP_DEBUG_ANY,
 165                                                 "=> bdb_dn2id_delete: subtree (%s) delete failed: %d\n",
 166                                                 subtree[i], rc, 0 );
 167                                         charray_free( subtree );
 168                                         goto done;
 169                                 }
 170                         }
 171
 172                         charray_free( subtree );
 173                 }
 174         }
 175
 176 done:
 177         ch_free( key.data );
 178         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_delete %d\n", rc, 0, 0 );
 179         return rc;
 180 }
 181
 182 int
 183 bdb_dn2id(
 184         BackendDB       *be,
 185         DB_TXN *txn,
 186         const char      *dn,
 187         ID *id )
 188 {
 189         int             rc;
 190         DBT             key, data;
 191         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 192         DB *db = bdb->bi_dn2id->bdi_db;
 193
 194         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id( \"%s\" )\n", dn, 0, 0 );
 195
 196         DBTzero( &key );
 197         key.size = strlen( dn ) + 2;
 198         key.data = ch_malloc( key.size );
 199         ((char *)key.data)[0] = DN_BASE_PREFIX;
 200         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 201
 202         /* store the ID */
 203         DBTzero( &data );
 204         data.data = id;
 205         data.ulen = sizeof(ID);
 206         data.flags = DB_DBT_USERMEM;
 207
 208         /* fetch it */
 209         rc = db->get( db, txn, &key, &data, bdb->bi_db_opflags );
 210
 211         if( rc != 0 ) {
 212                 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: get failed: %s (%d)\n",
 213                         db_strerror( rc ), rc, 0 );
 214         } else {
 215                 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: got id=0x%08lx\n",
 216                         *id, 0, 0 );
 217         }
 218
 219         ch_free( key.data );
 220         return rc;
 221 }
 222
 223 int
 224 bdb_dn2id_matched(
 225         BackendDB       *be,
 226         DB_TXN *txn,
 227         const char      *in,
 228         ID *id,
 229         char **matchedDN )
 230 {
 231         int             rc;
 232         DBT             key, data;
 233         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 234         DB *db = bdb->bi_dn2id->bdi_db;
 235         const char *dn = in;
 236         char *tmp = NULL;
 237
 238         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_matched( \"%s\" )\n", dn, 0, 0 );
 239
 240         DBTzero( &key );
 241         key.size = strlen( dn ) + 2;
 242         key.data = ch_malloc( key.size );
 243         ((char *)key.data)[0] = DN_BASE_PREFIX;
 244
 245         /* store the ID */
 246         DBTzero( &data );
 247         data.data = id;
 248         data.ulen = sizeof(ID);
 249         data.flags = DB_DBT_USERMEM;
 250
 251         *matchedDN = NULL;
 252
 253         while(1) {
 254                 AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 255
 256                 *id = NOID;
 257
 258                 /* fetch it */
 259                 rc = db->get( db, txn, &key, &data, bdb->bi_db_opflags );
 260
 261                 if( rc == DB_NOTFOUND ) {
 262                         char *pdn = dn_parent( be, dn );
 263                         ch_free( tmp );
 264                         tmp = NULL;
 265
 266                         if( pdn == NULL || *pdn == '\0' ) {
 267                                 Debug( LDAP_DEBUG_TRACE,
 268                                         "<= bdb_dn2id_matched: no match\n",
 269                                         0, 0, 0 );
 270                                 ch_free( pdn );
 271                                 break;
 272                         }
 273
 274                         dn = pdn;
 275                         tmp = pdn;
 276                         key.size = strlen( dn ) + 2;
 277
 278                 } else if ( rc == 0 ) {
 279                         if( data.size != sizeof( ID ) ) {
 280                                 Debug( LDAP_DEBUG_ANY,
 281                                         "<= bdb_dn2id_matched: get size mismatch: "
 282                                         "expected %ld, got %ld\n",
 283                                         (long) sizeof(ID), (long) data.size, 0 );
 284                                 ch_free( tmp );
 285                         }
 286
 287                         if( in != dn ) {
 288                                 *matchedDN = (char *) dn;
 289                         }
 290
 291                         Debug( LDAP_DEBUG_TRACE,
 292                                 "<= bdb_dn2id_matched: id=0x%08lx: %s %s\n",
 293                                 (long) *id, *matchedDN == NULL ? "entry" : "matched", dn );
 294                         break;
 295
 296                 } else {
 297                         Debug( LDAP_DEBUG_ANY,
 298                                 "<= bdb_dn2id_matched: get failed: %s (%d)\n",
 299                                 db_strerror(rc), rc, 0 );
 300                         ch_free( tmp );
 301                         break;
 302                 }
 303         }
 304
 305         ch_free( key.data );
 306         return rc;
 307 }
 308
 309 int
 310 bdb_dn2id_children(
 311         BackendDB       *be,
 312         DB_TXN *txn,
 313         const char *dn )
 314 {
 315         int             rc;
 316         DBT             key, data;
 317         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 318         DB *db = bdb->bi_dn2id->bdi_db;
 319         ID              id;
 320
 321         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_children( %s )\n",
 322                 dn, 0, 0 );
 323
 324         DBTzero( &key );
 325         key.size = strlen( dn ) + 2;
 326         key.data = ch_malloc( key.size );
 327         ((char *)key.data)[0] = DN_ONE_PREFIX;
 328         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 329
 330         /* we actually could do a empty get... */
 331         DBTzero( &data );
 332         data.data = &id;
 333         data.ulen = sizeof(id);
 334         data.flags = DB_DBT_USERMEM;
 335         data.doff = 0;
 336         data.dlen = sizeof(id);
 337
 338         rc = db->get( db, txn, &key, &data, bdb->bi_db_opflags );
 339
 340         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_children( %s ): %schildren (%d)\n",
 341                 dn,
 342                 rc == 0 ? "" : ( rc == DB_NOTFOUND ? "no " :
 343                         db_strerror(rc) ), rc );
 344
 345         return rc;
 346 }
 347
 348 int
 349 bdb_dn2idl(
 350         BackendDB       *be,
 351         const char      *dn,
 352         int prefix,
 353         ID *ids )
 354 {
 355         int             rc;
 356         DBT             key, data;
 357         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 358         DB *db = bdb->bi_dn2id->bdi_db;
 359
 360         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2idl( \"%s\" )\n", dn, 0, 0 );
 361
 362         if (prefix == DN_SUBTREE_PREFIX && be_issuffix(be, dn))
 363         {
 364                 BDB_IDL_ALL(bdb, ids);
 365                 return 0;
 366         }
 367
 368         DBTzero( &key );
 369         key.size = strlen( dn ) + 2;
 370         key.data = ch_malloc( key.size );
 371         ((char *)key.data)[0] = prefix;
 372         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 373
 374         /* store the ID */
 375         DBTzero( &data );
 376         data.data = ids;
 377         data.ulen = BDB_IDL_UM_SIZEOF;
 378         data.flags = DB_DBT_USERMEM;
 379
 380         /* fetch it */
 381         rc = db->get( db, NULL, &key, &data, bdb->bi_db_opflags );
 382
 383         if( rc != 0 ) {
 384                 Debug( LDAP_DEBUG_TRACE,
 385                         "<= bdb_dn2idl: get failed: %s (%d)\n",
 386                         db_strerror( rc ), rc, 0 );
 387
 388         } else {
 389                 Debug( LDAP_DEBUG_TRACE,
 390                         "<= bdb_dn2idl: id=%ld first=%ld last=%ld\n",
 391                         (long) ids[0],
 392                         (long) BDB_IDL_FIRST( ids ), (long) BDB_IDL_LAST( ids ) );
 393         }
 394
 395         ch_free( key.data );
 396         return rc;
 397 }