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         int             rc;
  23         DBT             key, data;
  24         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  25         DB *db = bdb->bi_dn2id->bdi_db;
  26
  27         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_add( \"%s\", 0x%08lx )\n",
  28                 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\", 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         /* store it -- don't override */
 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 *pdn = dn_parent( NULL, dn );
 133                 ((char *)(key.data))[0] = DN_ONE_PREFIX;
 134
 135                 if( pdn != NULL ) {
 136                         key.size = strlen( pdn ) + 2;
 137                         AC_MEMCPY( &((char*)key.data)[1],
 138                                 pdn, key.size - 1 );
 139
 140                         rc = bdb_idl_delete_key( be, db, txn, &key, id );
 141
 142                         if( rc != 0 ) {
 143                                 Debug( LDAP_DEBUG_ANY,
 144                                         "=> bdb_dn2id_delete: parent (%s) delete failed: %d\n",
 145                                         pdn, rc, 0 );
 146                                 free( pdn );
 147                                 goto done;
 148                         }
 149                         free( pdn );
 150                 }
 151         }
 152
 153         {
 154                 char **subtree = dn_subtree( NULL, dn );
 155
 156                 if( subtree != NULL ) {
 157                         int i;
 158                         ((char *)key.data)[0] = DN_SUBTREE_PREFIX;
 159                         for( i=0; subtree[i] != NULL; i++ ) {
 160                                 key.size = strlen( subtree[i] ) + 2;
 161                                 AC_MEMCPY( &((char *)key.data)[1],
 162                                         subtree[i], key.size - 1 );
 163
 164                                 rc = bdb_idl_delete_key( be, db, txn, &key, id );
 165
 166                                 if( rc != 0 ) {
 167                                         Debug( LDAP_DEBUG_ANY,
 168                                                 "=> bdb_dn2id_delete: subtree (%s) delete failed: %d\n",
 169                                                 subtree[i], rc, 0 );
 170                                         charray_free( subtree );
 171                                         goto done;
 172                                 }
 173                         }
 174
 175                         charray_free( subtree );
 176                 }
 177         }
 178
 179 done:
 180         ch_free( key.data );
 181         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_delete %d\n", rc, 0, 0 );
 182         return rc;
 183 }
 184
 185 int
 186 bdb_dn2id(
 187         BackendDB       *be,
 188         DB_TXN *txn,
 189         const char      *dn,
 190         ID *id )
 191 {
 192         int             rc;
 193         DBT             key, data;
 194         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 195         DB *db = bdb->bi_dn2id->bdi_db;
 196
 197         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id( \"%s\" )\n", dn, 0, 0 );
 198
 199         DBTzero( &key );
 200         key.size = strlen( dn ) + 2;
 201         key.data = ch_malloc( key.size );
 202         ((char *)key.data)[0] = DN_BASE_PREFIX;
 203         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 204
 205         /* store the ID */
 206         DBTzero( &data );
 207         data.data = id;
 208         data.ulen = sizeof(ID);
 209         data.flags = DB_DBT_USERMEM;
 210
 211         /* fetch it */
 212         rc = db->get( db, txn, &key, &data, 0 );
 213
 214         if( rc != 0 ) {
 215                 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: get failed: %s (%d)\n",
 216                         db_strerror( rc ), rc, 0 );
 217         } else {
 218                 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: got id=0x%08lx\n",
 219                         *id, 0, 0 );
 220         }
 221
 222         ch_free( key.data );
 223         return rc;
 224 }
 225
 226 int
 227 bdb_dn2id_matched(
 228         BackendDB       *be,
 229         DB_TXN *txn,
 230         const char      *in,
 231         ID *id,
 232         char **matchedDN )
 233 {
 234         int             rc;
 235         DBT             key, data;
 236         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 237         DB *db = bdb->bi_dn2id->bdi_db;
 238         const char *dn = in;
 239         char *tmp = NULL;
 240
 241         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_matched( \"%s\" )\n", dn, 0, 0 );
 242
 243         DBTzero( &key );
 244         key.size = strlen( dn ) + 2;
 245         key.data = ch_malloc( key.size );
 246         ((char *)key.data)[0] = DN_BASE_PREFIX;
 247
 248         /* store the ID */
 249         DBTzero( &data );
 250         data.data = id;
 251         data.ulen = sizeof(ID);
 252         data.flags = DB_DBT_USERMEM;
 253
 254         *matchedDN = NULL;
 255
 256         while(1) {
 257                 AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 258
 259                 *id = NOID;
 260
 261                 /* fetch it */
 262                 rc = db->get( db, txn, &key, &data, 0 );
 263
 264                 if( rc == DB_NOTFOUND ) {
 265                         char *pdn = dn_parent( be, dn );
 266                         ch_free( tmp );
 267                         tmp = NULL;
 268
 269                         if( pdn == NULL || *pdn == '\0' ) {
 270                                 Debug( LDAP_DEBUG_TRACE,
 271                                         "<= bdb_dn2id_matched: no match\n",
 272                                         0, 0, 0 );
 273                                 ch_free( pdn );
 274                                 break;
 275                         }
 276
 277                         dn = pdn;
 278                         tmp = pdn;
 279                         key.size = strlen( dn ) + 2;
 280
 281                 } else if ( rc == 0 ) {
 282                         if( data.size != sizeof( ID ) ) {
 283                                 Debug( LDAP_DEBUG_ANY,
 284                                         "<= bdb_dn2id_matched: get size mismatch: "
 285                                         "expected %ld, got %ld\n",
 286                                         (long) sizeof(ID), (long) data.size, 0 );
 287                                 ch_free( tmp );
 288                         }
 289
 290                         if( in != dn ) {
 291                                 *matchedDN = (char *) dn;
 292                         }
 293
 294                         Debug( LDAP_DEBUG_TRACE,
 295                                 "<= bdb_dn2id_matched: id=0x%08lx: %s %s\n",
 296                                 *id, *matchedDN == NULL ? "entry" : "matched", dn );
 297                         break;
 298
 299                 } else {
 300                         Debug( LDAP_DEBUG_ANY,
 301                                 "<= bdb_dn2id_matched: get failed: %s (%d)\n",
 302                                 db_strerror(rc), rc, 0 );
 303                         ch_free( tmp );
 304                         break;
 305                 }
 306         }
 307
 308         ch_free( key.data );
 309         return rc;
 310 }
 311
 312 int
 313 bdb_dn2id_children(
 314         BackendDB       *be,
 315         DB_TXN *txn,
 316         const char *dn )
 317 {
 318         int             rc;
 319         DBT             key, data;
 320         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 321         DB *db = bdb->bi_dn2id->bdi_db;
 322         ID              id;
 323
 324         Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_children( %s )\n",
 325                 dn, 0, 0 );
 326
 327         DBTzero( &key );
 328         key.size = strlen( dn ) + 2;
 329         key.data = ch_malloc( key.size );
 330         ((char *)key.data)[0] = DN_ONE_PREFIX;
 331         AC_MEMCPY( &((char *)key.data)[1], dn, key.size - 1 );
 332
 333         /* we actually could do a empty get... */
 334         DBTzero( &data );
 335         data.data = &id;
 336         data.ulen = sizeof(id);
 337         data.flags = DB_DBT_USERMEM;
 338         data.doff = 0;
 339         data.dlen = sizeof(id);
 340
 341         rc = db->get( db, txn, &key, &data, 0 );
 342
 343         Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_children( %s ): %schildren (%d)\n",
 344                 dn,
 345                 rc == 0 ? "" : ( rc == DB_NOTFOUND ? "no " :
 346                         db_strerror(rc) ), rc );
 347
 348         return rc;
 349 }