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\", %ld )\n", dn, id, 0 );
  29         assert( id != NOID );
  30
  31         DBTzero( &key );
  32         key.size = strlen( dn ) + 2;
  33         key.data = ch_malloc( key.size );
  34         ((char *)key.data)[0] = DN_BASE_PREFIX;
  35         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
  36
  37         DBTzero( &data );
  38         data.data = (char *) &id;
  39         data.size = sizeof( id );
  40
  41         /* store it -- don't override */
  42         rc = db->put( db, txn, &key, &data, DB_NOOVERWRITE );
  43         if( rc != 0 ) {
  44                 Debug( LDAP_DEBUG_ANY, "=> bdb_dn2id_add: put failed: %s %d\n",
  45                         db_strerror(rc), rc, 0 );
  46                 goto done;
  47         }
  48
  49         {
  50                 char *pdn = dn_parent( NULL, dn );
  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, 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                                 free( pdn );
  65                                 goto done;
  66                         }
  67                         free( pdn );
  68                 }
  69         }
  70
  71         {
  72                 char **subtree = dn_subtree( NULL, dn );
  73
  74                 if( subtree != NULL ) {
  75                         int i;
  76                         ((char *)key.data)[0] = DN_SUBTREE_PREFIX;
  77                         for( i=0; subtree[i] != NULL; i++ ) {
  78                                 key.size = strlen( subtree[i] ) + 2;
  79                                 AC_MEMCPY( &((char *)key.data)[1],
  80                                         subtree[i], key.size - 1 );
  81
  82                                 rc = bdb_idl_insert_key( be, db, txn, &key, id );
  83
  84                                 if( rc != 0 ) {
  85                                         Debug( LDAP_DEBUG_ANY,
  86                                                 "=> bdb_dn2id_add: subtree (%s) insert failed: %d\n",
  87                                                 subtree[i], rc, 0 );
  88                                         break;
  89                                 }
  90                         }
  91
  92                         charray_free( subtree );
  93                 }
  94         }
  95
  96 done:
  97         ch_free( key.data );
  98         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_add: %d\n", rc, 0, 0 );
  99         return rc;
 100 }
 101
 102 int
 103 bdb_dn2id_delete(
 104     BackendDB   *be,
 105         DB_TXN *txn,
 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\", %ld )\n", dn, id, 0 );
 115
 116         DBTzero( &key );
 117         key.size = strlen( dn ) + 2;
 118         key.data = ch_malloc( key.size );
 119         ((char *)key.data)[0] = DN_BASE_PREFIX;
 120         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 121
 122         /* store it -- don't override */
 123         rc = db->del( db, txn, &key, 0 );
 124         if( rc != 0 ) {
 125                 Debug( LDAP_DEBUG_ANY, "=> bdb_dn2id_delete: delete failed: %s %d\n",
 126                         db_strerror(rc), rc, 0 );
 127                 goto done;
 128         }
 129
 130         {
 131                 char *pdn = dn_parent( NULL, dn );
 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                                 free( pdn );
 146                                 goto done;
 147                         }
 148                         free( pdn );
 149                 }
 150         }
 151
 152         {
 153                 char **subtree = dn_subtree( NULL, dn );
 154
 155                 if( subtree != NULL ) {
 156                         int i;
 157                         ((char *)key.data)[0] = DN_SUBTREE_PREFIX;
 158                         for( i=0; subtree[i] != NULL; i++ ) {
 159                                 key.size = strlen( subtree[i] ) + 2;
 160                                 AC_MEMCPY( &((char *)key.data)[1],
 161                                         subtree[i], key.size - 1 );
 162
 163                                 rc = bdb_idl_delete_key( be, db, txn, &key, id );
 164
 165                                 if( rc != 0 ) {
 166                                         Debug( LDAP_DEBUG_ANY,
 167                                                 "=> bdb_dn2id_delete: subtree (%s) delete failed: %d\n",
 168                                                 subtree[i], rc, 0 );
 169                                         charray_free( subtree );
 170                                         goto done;
 171                                 }
 172                         }
 173
 174                         charray_free( subtree );
 175                 }
 176         }
 177
 178 done:
 179         ch_free( key.data );
 180         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_delete %d\n", rc, 0, 0 );
 181         return rc;
 182 }
 183
 184 int
 185 bdb_dn2id(
 186     BackendDB   *be,
 187         DB_TXN *txn,
 188     const char  *dn,
 189         ID *id )
 190 {
 191         int             rc;
 192         DBT             key, data;
 193         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 194         DB *db = bdb->bi_dn2id->bdi_db;
 195
 196         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id( \"%s\" )\n", dn, 0, 0 );
 197
 198         DBTzero( &key );
 199         key.size = strlen( dn ) + 2;
 200         key.data = ch_malloc( key.size );
 201         ((char *)key.data)[0] = DN_BASE_PREFIX;
 202         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 203
 204         /* store the ID */
 205         DBTzero( &data );
 206         data.data = id;
 207         data.ulen = sizeof(ID);
 208         data.flags = DB_DBT_USERMEM;
 209
 210         /* fetch it */
 211         rc = db->get( db, txn, &key, &data, 0 );
 212
 213         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: id=%ld: %s (%d)\n",
 214                 id, db_strerror( rc ), rc );
 215
 216         ch_free( key.data );
 217         return rc;
 218 }
 219
 220 int
 221 bdb_dn2id_matched(
 222     BackendDB   *be,
 223         DB_TXN *txn,
 224     const char  *in,
 225         ID *id,
 226         char **matchedDN )
 227 {
 228         int             rc;
 229         DBT             key, data;
 230         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 231         DB *db = bdb->bi_dn2id->bdi_db;
 232         const char *dn = in;
 233         char *tmp = NULL;
 234
 235         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_matched( \"%s\" )\n", dn, 0, 0 );
 236
 237         DBTzero( &key );
 238         key.size = strlen( dn ) + 2;
 239         key.data = ch_malloc( key.size );
 240         ((char *)key.data)[0] = DN_BASE_PREFIX;
 241
 242         /* store the ID */
 243         DBTzero( &data );
 244         data.data = id;
 245         data.ulen = sizeof(ID);
 246         data.flags = DB_DBT_USERMEM;
 247
 248         *matchedDN = NULL;
 249
 250         while(1) {
 251                 AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 252
 253                 /* fetch it */
 254                 rc = db->get( db, txn, &key, &data, 0 );
 255
 256                 if( rc == DB_NOTFOUND ) {
 257                         char *pdn = dn_parent( be, dn );
 258                         ch_free( tmp );
 259                         tmp = NULL;
 260
 261                         if( pdn == NULL || *pdn == '\0' ) {
 262                                 ch_free( pdn );
 263                                 break;
 264                         }
 265
 266                         dn = pdn;
 267                         tmp = pdn;
 268                         key.size = strlen( dn ) + 2;
 269
 270                 } else if ( rc == 0 ) {
 271                         if( in != dn ) {
 272                                 *matchedDN = (char *) dn;
 273                         }
 274                         Debug( LDAP_DEBUG_TRACE,
 275                                 "<= bdb_dn2id_matched: id=%ld: %s\n",
 276                                 id, dn, 0 );
 277                         break;
 278
 279                 } else {
 280                         ch_free( tmp );
 281                         break;
 282                 }
 283         }
 284
 285         ch_free( key.data );
 286         return rc;
 287 }
 288
 289 int
 290 bdb_dn2id_children(
 291     BackendDB   *be,
 292         DB_TXN *txn,
 293     const char *dn )
 294 {
 295         int             rc;
 296         DBT             key, data;
 297         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 298         DB *db = bdb->bi_dn2id->bdi_db;
 299         ID              id;
 300
 301         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_children( %s )\n",
 302                 dn, 0, 0 );
 303
 304         DBTzero( &key );
 305         key.size = strlen( dn ) + 2;
 306         key.data = ch_malloc( key.size );
 307         ((char *)key.data)[0] = DN_ONE_PREFIX;
 308         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 309
 310         /* we actually could do a empty get... */
 311         DBTzero( &data );
 312         data.data = &id;
 313         data.ulen = sizeof(id);
 314         data.flags = DB_DBT_USERMEM;
 315         data.doff = 0;
 316         data.dlen = sizeof(id);
 317
 318         rc = db->get( db, txn, &key, &data, 0 );
 319
 320         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_children( %s ): %s (%d)\n",
 321                 dn,
 322                 rc == 0 ? "yes" : ( rc == DB_NOTFOUND ? "no" :
 323                         db_strerror(rc) ), rc );
 324
 325         return rc;
 326 }