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" BDB_SUFFIX, "nextid", DB_BTREE, 0 },
  23         { "dn2entry" BDB_SUFFIX, "dn2entry", DB_BTREE, 0 },
  24         { "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
  25 };
  26
  27 #if 0
  28 static int
  29 bdb_destroy( BackendInfo *bi )
  30 {
  31         return 0;
  32 }
  33
  34 static int
  35 bdb_open( BackendInfo *bi )
  36 {
  37         /* initialize the underlying database system */
  38         Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
  39                 0, 0, 0 );
  40
  41         return 0;
  42 }
  43
  44 static int
  45 bdb_close( BackendInfo *bi )
  46 {
  47         /* terminate the underlying database system */
  48         return 0;
  49 }
  50 #endif
  51
  52 static int
  53 bdb_db_init( BackendDB *be )
  54 {
  55         struct bdb_info *bdb;
  56
  57         Debug( LDAP_DEBUG_ANY,
  58                 "bdb_db_init: Initializing BDB database\n",
  59                 0, 0, 0 );
  60
  61         /* allocate backend-database-specific stuff */
  62         bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
  63
  64         /* DBEnv parameters */
  65         bdb->bi_dbenv_home = ch_strdup( BDB_DBENV_HOME );
  66         bdb->bi_dbenv_xflags = 0;
  67         bdb->bi_dbenv_mode = DEFAULT_MODE;
  68
  69         be->be_private = bdb;
  70         return 0;
  71 }
  72
  73 static int
  74 bdb_db_open( BackendDB *be )
  75 {
  76         int rc, i;
  77         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  78         u_int32_t flags;
  79
  80         Debug( LDAP_DEBUG_ARGS,
  81                 "bdb_db_open: %s\n",
  82                 be->be_suffix[0], 0, 0 );
  83
  84         /* we should check existance of dbenv_home and db_directory */
  85
  86         rc = db_env_create( &bdb->bi_dbenv, 0 );
  87         if( rc != 0 ) {
  88                 Debug( LDAP_DEBUG_ANY,
  89                         "bdb_db_open: db_env_create failed: %s (%d)\n",
  90                         db_strerror(rc), rc, 0 );
  91                 return rc;
  92         }
  93
  94         flags = DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN |
  95                 DB_CREATE | DB_RECOVER | DB_THREAD;
  96
  97 #ifdef SLAPD_BDB_PRIVATE
  98         flags |= DB_PRIVATE;
  99 #else
 100         flags |= DB_INIT_MPOOL;
 101 #endif
 102
 103         bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0] );
 104         bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
 105
 106 #ifdef BDB_SUBDIRS
 107         {
 108                 char dir[MAXPATHLEN];
 109                 size_t len = strlen( bdb->bi_dbenv_home );
 110
 111                 strcpy( dir, bdb->bi_dbenv_home );
 112                 strcat( &dir[len], BDB_TMP_SUBDIR );
 113
 114                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 115                 if( rc != 0 ) {
 116                         Debug( LDAP_DEBUG_ANY,
 117                                 "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 118                                 dir, db_strerror(rc), rc );
 119                         return rc;
 120                 }
 121
 122                 strcat( &dir[len], BDB_LG_SUBDIR );
 123
 124                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 125                 if( rc != 0 ) {
 126                         Debug( LDAP_DEBUG_ANY,
 127                                 "bi_back_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 128                                 dir, db_strerror(rc), rc );
 129                         return rc;
 130                 }
 131
 132                 strcat( &dir[len], BDB_DATA_SUBDIR );
 133
 134                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 135                 if( rc != 0 ) {
 136                         Debug( LDAP_DEBUG_ANY,
 137                                 "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
 138                                 dir, db_strerror(rc), rc );
 139                         return rc;
 140                 }
 141         }
 142 #endif
 143
 144         Debug( LDAP_DEBUG_TRACE,
 145                 "bi_back_db_open: dbenv_open(%s)\n",
 146                 bdb->bi_dbenv_home, 0, 0);
 147
 148         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 149                 bdb->bi_dbenv_home,
 150                 flags | bdb->bi_dbenv_xflags,
 151                 bdb->bi_dbenv_mode );
 152         if( rc != 0 ) {
 153                 Debug( LDAP_DEBUG_ANY,
 154                         "bdb_db_open: dbenv_open failed: %s (%d)\n",
 155                         db_strerror(rc), rc, 0 );
 156                 return rc;
 157         }
 158
 159         flags = DB_THREAD | DB_CREATE;
 160
 161         /* open (and create) main database */
 162         for( i = 0; i < BDB_INDICES; i++ ) {
 163                 struct bdb_db_info *db;
 164
 165                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 166
 167                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 168                 if( rc != 0 ) {
 169                         Debug( LDAP_DEBUG_ANY,
 170                                 "bdb_db_open: db_create(%s) failed: %s (%d)\n",
 171                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 172                         return rc;
 173                 }
 174
 175                 rc = db->bdi_db->open( db->bdi_db,
 176                         bdbi_databases[i].file,
 177                         bdbi_databases[i].name,
 178                         bdbi_databases[i].type,
 179                         bdbi_databases[i].flags | flags,
 180                         bdb->bi_dbenv_mode );
 181
 182                 if( rc != 0 ) {
 183                         Debug( LDAP_DEBUG_ANY,
 184                                 "bdb_db_open: db_open(%s) failed: %s (%d)\n",
 185                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 186                         return rc;
 187                 }
 188         }
 189
 190         /* <insert> open (and create) index databases */
 191
 192
 193         return 0;
 194 }
 195
 196 static int
 197 bdb_db_close( BackendDB *be )
 198 {
 199         int rc;
 200         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 201
 202         /* force a checkpoint */
 203         rc = txn_checkpoint( bdb->bi_dbenv, 0, 0, DB_FORCE );
 204         if( rc != 0 ) {
 205                 Debug( LDAP_DEBUG_ANY,
 206                         "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
 207                         db_strerror(rc), rc, 0 );
 208                 return rc;
 209         }
 210
 211         while( bdb->bi_ndatabases-- ) {
 212                 rc = bdb->bi_databases[bdb->bi_ndatabases]->bdi_db->close(
 213                         bdb->bi_databases[bdb->bi_ndatabases]->bdi_db, 0 );
 214         }
 215
 216         return 0;
 217 }
 218
 219 static int
 220 bdb_db_destroy( BackendDB *be )
 221 {
 222         int rc;
 223         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 224
 225         /* close db environment */
 226         rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 227         bdb->bi_dbenv = NULL;
 228         if( rc != 0 ) {
 229                 Debug( LDAP_DEBUG_ANY,
 230                         "bdb_db_destroy: close failed: %s (%d)\n",
 231                         db_strerror(rc), rc, 0 );
 232                 return rc;
 233         }
 234
 235         return 0;
 236 }
 237
 238 #ifdef SLAPD_BDB_DYNAMIC
 239 int back_bdb_LTX_init_module( int argc, char *argv[] ) {
 240     BackendInfo bi;
 241
 242     memset( &bi, '\0', sizeof(bi) );
 243     bi.bi_type = "bdb";
 244     bi.bi_init = bdb_initialize;
 245
 246     backend_add( &bi );
 247     return 0;
 248 }
 249 #endif /* SLAPD_BDB_DYNAMIC */
 250
 251 int
 252 bdb_initialize(
 253     BackendInfo *bi
 254 )
 255 {
 256         static char *controls[] = {
 257                 LDAP_CONTROL_MANAGEDSAIT,
 258                 NULL
 259         };
 260
 261         {       /* version check */
 262                 int major, minor, patch;
 263                 char *version = db_version( &major, &minor, &patch );
 264
 265                 if( major != DB_VERSION_MAJOR ||
 266                         minor != DB_VERSION_MINOR ||
 267                         patch < DB_VERSION_PATCH )
 268                 {
 269                         Debug( LDAP_DEBUG_ANY,
 270                                 "bi_back_initialize: version mismatch\n"
 271                                 "\texpected: " DB_VERSION_STRING "\n"
 272                                 "\tgot: %s \n", version, 0, 0 );
 273                 }
 274
 275                 Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
 276                         version, 0, 0 );
 277         }
 278
 279 #if 0
 280         db_env_set_func_malloc( ch_malloc );
 281         db_env_set_func_realloc( ch_realloc );
 282         db_env_set_func_free( ch_free );
 283 #endif
 284         db_env_set_func_yield( ldap_pvt_thread_yield );
 285
 286         bi->bi_controls = controls;
 287
 288         bi->bi_open = 0;
 289         bi->bi_close = 0;
 290         bi->bi_config = 0;
 291         bi->bi_destroy = 0;
 292
 293         bi->bi_db_init = bdb_db_init;
 294         bi->bi_db_config = bdb_db_config;
 295         bi->bi_db_open = bdb_db_open;
 296         bi->bi_db_close = bdb_db_close;
 297         bi->bi_db_destroy = bdb_db_destroy;
 298
 299         bi->bi_op_add = bdb_add;
 300         bi->bi_op_bind = bdb_bind;
 301         bi->bi_op_compare = bdb_compare;
 302         bi->bi_op_delete = bdb_delete;
 303         bi->bi_op_search = bdb_search;
 304
 305 #if 0
 306         bi->bi_op_unbind = bdb_unbind;
 307         bi->bi_op_modify = bdb_modify;
 308         bi->bi_op_modrdn = bdb_modrdn;
 309         bi->bi_op_abandon = bdb_abandon;
 310
 311         bi->bi_extended = bdb_extended;
 312
 313         bi->bi_acl_group = bdb_group;
 314         bi->bi_acl_attribute = bdb_attribute;
 315         bi->bi_chk_referrals = bdb_referrals;
 316 #endif
 317
 318         bi->bi_entry_release_rw = 0;
 319
 320         /*
 321          * hooks for slap tools
 322          */
 323         bi->bi_tool_entry_open = bdb_tool_entry_open;
 324         bi->bi_tool_entry_close = bdb_tool_entry_close;
 325         bi->bi_tool_entry_first = bdb_tool_entry_next;
 326         bi->bi_tool_entry_next = bdb_tool_entry_next;
 327         bi->bi_tool_entry_get = bdb_tool_entry_get;
 328         bi->bi_tool_entry_put = bdb_tool_entry_put;
 329         bi->bi_tool_entry_reindex = 0;
 330         bi->bi_tool_sync = 0;
 331
 332         bi->bi_connection_init = 0;
 333         bi->bi_connection_destroy = 0;
 334
 335         return 0;
 336 }