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

   1 /* init.c - initialize bdb backend */
   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 "external.h"
  15
  16 static struct bdbi_database {
  17         char *file;
  18         char *name;
  19         int type;
  20         int flags;
  21 } bdbi_databases[BDB_INDICES] = {
  22         { "nextid", "nextid", DB_BTREE, 0 },
  23         { "dn2entry", "dn2entry", DB_BTREE, 0 },
  24         { "id2entry", "id2entry", DB_BTREE, 0 },
  25 };
  26
  27 static int
  28 bdb_destroy( BackendInfo *bi )
  29 {
  30         return 0;
  31 }
  32
  33 static int
  34 bdb_open( BackendInfo *bi )
  35 {
  36         /* initialize the underlying database system */
  37         Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
  38                 0, 0, 0 );
  39
  40         return 0;
  41 }
  42
  43 static int
  44 bdb_close( BackendInfo *bi )
  45 {
  46         /* terminate the underlying database system */
  47         return 0;
  48 }
  49
  50 static int
  51 bdb_db_init( Backend *be )
  52 {
  53         struct bdb_info *bdb;
  54
  55         Debug( LDAP_DEBUG_ANY,
  56                 "bdb_db_init: Initializing BDB database\n",
  57                 0, 0, 0 );
  58
  59         /* allocate backend-database-specific stuff */
  60         bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
  61
  62         /* DBEnv parameters */
  63         bdb->bi_dbenv_home = ch_strdup( BDB_DBENV_HOME );
  64         bdb->bi_dbenv_xflags = 0;
  65         bdb->bi_dbenv_mode = DEFAULT_MODE;
  66
  67         be->be_private = bdb;
  68         return 0;
  69 }
  70
  71 static int
  72 bdb_db_open( BackendDB *be )
  73 {
  74         int rc, i;
  75         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  76         u_int32_t flags;
  77
  78         Debug( LDAP_DEBUG_ANY,
  79                 "bdb_db_open: opening database for %s\n",
  80                 be->be_suffix[0], 0, 0 );
  81
  82         /* we should check existance of dbenv_home and db_directory */
  83
  84         rc = db_env_create( &bdb->bi_dbenv, 0 );
  85         if( rc != 0 ) {
  86                 Debug( LDAP_DEBUG_ANY,
  87                         "bdb_db_open: db_env_create failed: %s (%d)\n",
  88                         db_strerror(rc), rc, 0 );
  89                 return rc;
  90         }
  91
  92         flags = DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN |
  93                 DB_CREATE | DB_RECOVER | DB_THREAD;
  94
  95 #ifdef SLAPD_BDB_PRIVATE
  96         flags |= DB_PRIVATE;
  97 #else
  98         flags |= DB_INIT_MPOOL;
  99 #endif
 100
 101         bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0] );
 102         bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
 103
 104 #ifdef BDB_SUBDIRS
 105         {
 106                 char dir[MAXPATHLEN];
 107                 size_t len = strlen( bdb->bi_dbenv_home );
 108
 109                 strcpy( dir, bdb->bi_dbenv_home );
 110                 strcat( &dir[len], BDB_TMP_SUBDIR );
 111
 112                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 113                 if( rc != 0 ) {
 114                         Debug( LDAP_DEBUG_ANY,
 115                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 116                                 dir, db_strerror(rc), rc );
 117                         return rc;
 118                 }
 119
 120                 strcat( &dir[len], BDB_LG_SUBDIR );
 121
 122                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 123                 if( rc != 0 ) {
 124                         Debug( LDAP_DEBUG_ANY,
 125                                 "bi_back_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 126                                 dir, db_strerror(rc), rc );
 127                         return rc;
 128                 }
 129
 130                 strcat( &dir[len], BDB_DATA_SUBDIR );
 131
 132                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 133                 if( rc != 0 ) {
 134                         Debug( LDAP_DEBUG_ANY,
 135                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 136                                 dir, db_strerror(rc), rc );
 137                         return rc;
 138                 }
 139         }
 140 #endif
 141
 142         Debug( LDAP_DEBUG_TRACE,
 143                 "bi_back_db_open: dbenv_open(%s)\n",
 144                 bdb->bi_dbenv_home, 0, 0);
 145
 146         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 147                 bdb->bi_dbenv_home,
 148                 flags | bdb->bi_dbenv_xflags,
 149                 bdb->bi_dbenv_mode );
 150         if( rc != 0 ) {
 151                 Debug( LDAP_DEBUG_ANY,
 152                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 153                         db_strerror(rc), rc, 0 );
 154                 return rc;
 155         }
 156
 157         flags = DB_THREAD | DB_CREATE;
 158
 159         /* open (and create) main database */
 160         for( i = 0; i < BDB_INDICES; i++ ) {
 161                 struct bdb_db_info *db;
 162
 163                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 164
 165                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 166                 if( rc != 0 ) {
 167                         Debug( LDAP_DEBUG_ANY,
 168                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 169                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 170                         return rc;
 171                 }
 172
 173                 rc = db->bdi_db->open( db->bdi_db,
 174                         bdbi_databases[i].file,
 175                         bdbi_databases[i].name,
 176                         bdbi_databases[i].type,
 177                         bdbi_databases[i].flags | flags,
 178                         bdb->bi_dbenv_mode );
 179
 180                 if( rc != 0 ) {
 181                         Debug( LDAP_DEBUG_ANY,
 182                                 "bdb_db_open: db_open(%s) failed: %s (%d)\n",
 183                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 184                         return rc;
 185                 }
 186         }
 187
 188         /* <insert> open (and create) index databases */
 189
 190
 191         return 0;
 192 }
 193
 194 static int
 195 bdb_db_close( BackendDB *be )
 196 {
 197         int rc;
 198         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 199
 200         /* force a checkpoint */
 201         rc = txn_checkpoint( bdb->bi_dbenv, 0, 0, DB_FORCE );
 202         if( rc != 0 ) {
 203                 Debug( LDAP_DEBUG_ANY,
 204                         "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 205                         db_strerror(rc), rc, 0 );
 206                 return rc;
 207         }
 208
 209         while( bdb->bi_ndatabases-- ) {
 210                 rc = bdb->bi_databases[bdb->bi_ndatabases]->bdi_db->close(
 211                         bdb->bi_databases[bdb->bi_ndatabases]->bdi_db, 0 );
 212         }
 213
 214         return 0;
 215 }
 216
 217 static int
 218 bdb_db_destroy( BackendDB *be )
 219 {
 220         int rc;
 221         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 222
 223         /* close db environment */
 224         rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 225         bdb->bi_dbenv = NULL;
 226         if( rc != 0 ) {
 227                 Debug( LDAP_DEBUG_ANY,
 228                         "bdb_db_destroy: close failed: %s (%d)\n",
 229                         db_strerror(rc), rc, 0 );
 230                 return rc;
 231         }
 232
 233         return 0;
 234 }
 235
 236 #ifdef SLAPD_BDB_DYNAMIC
 237 int back_bdb_LTX_init_module( int argc, char *argv[] ) {
 238     BackendInfo bi;
 239
 240     memset( &bi, '\0', sizeof(bi) );
 241     bi.bi_type = "bdb";
 242     bi.bi_init = bdb_initialize;
 243
 244     backend_add( &bi );
 245     return 0;
 246 }
 247 #endif /* SLAPD_BDB_DYNAMIC */
 248
 249 int
 250 bdb_initialize(
 251     BackendInfo *bi
 252 )
 253 {
 254         static char *controls[] = {
 255                 LDAP_CONTROL_MANAGEDSAIT,
 256                 NULL
 257         };
 258
 259         {       /* version check */
 260                 int major, minor, patch;
 261                 char *version = db_version( &major, &minor, &patch );
 262
 263                 if( major != DB_VERSION_MAJOR ||
 264                         minor != DB_VERSION_MINOR ||
 265                         patch < DB_VERSION_PATCH )
 266                 {
 267                         Debug( LDAP_DEBUG_ANY,
 268                                 "bi_back_initialize: version mismatch\n"
 269                                 "\texpected: " DB_VERSION_STRING "\n"
 270                                 "\tgot: %s \n", version, 0, 0 );
 271                 }
 272
 273                 Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
 274                         version, 0, 0 );
 275         }
 276
 277 #if 0
 278         db_env_set_func_malloc( ch_malloc );
 279         db_env_set_func_realloc( ch_realloc );
 280         db_env_set_func_free( ch_free );
 281         db_env_set_func_yield( ldap_pvt_thread_yield );
 282 #endif
 283
 284         bi->bi_controls = controls;
 285
 286         bi->bi_open = bdb_open;
 287         bi->bi_close = bdb_close;
 288         bi->bi_config = 0;
 289         bi->bi_destroy = bdb_destroy;
 290
 291         bi->bi_db_init = bdb_db_init;
 292         bi->bi_db_config = bdb_db_config;
 293         bi->bi_db_open = bdb_db_open;
 294         bi->bi_db_close = bdb_db_close;
 295         bi->bi_db_destroy = bdb_db_destroy;
 296
 297         bi->bi_op_add = bdb_add;
 298         bi->bi_op_compare = bdb_compare;
 299         bi->bi_op_delete = bdb_delete;
 300         bi->bi_op_search = bdb_search;
 301
 302 #if 0
 303         bi->bi_op_bind = bdb_bind;
 304         bi->bi_op_unbind = bdb_unbind;
 305         bi->bi_op_modify = bdb_modify;
 306         bi->bi_op_modrdn = bdb_modrdn;
 307         bi->bi_op_abandon = bdb_abandon;
 308
 309         bi->bi_extended = bdb_extended;
 310
 311         bi->bi_acl_group = bdb_group;
 312         bi->bi_acl_attribute = bdb_attribute;
 313         bi->bi_chk_referrals = bdb_referrals;
 314 #endif
 315
 316         bi->bi_entry_release_rw = 0;
 317
 318         /*
 319          * hooks for slap tools
 320          */
 321         bi->bi_tool_entry_open = bdb_tool_entry_open;
 322         bi->bi_tool_entry_close = bdb_tool_entry_close;
 323         bi->bi_tool_entry_first = bdb_tool_entry_next;
 324         bi->bi_tool_entry_next = bdb_tool_entry_next;
 325         bi->bi_tool_entry_get = bdb_tool_entry_get;
 326         bi->bi_tool_entry_put = bdb_tool_entry_put;
 327         bi->bi_tool_entry_reindex = 0;
 328         bi->bi_tool_sync = 0;
 329
 330         bi->bi_connection_init = 0;
 331         bi->bi_connection_destroy = 0;
 332
 333         return 0;
 334 }