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