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         {
  98                 char dir[MAXPATHLEN];
  99                 size_t len = strlen( bdb->bi_dbenv_home );
 100
 101                 strcpy( dir, bdb->bi_dbenv_home );
 102                 strcat( &dir[len], BDB_TMP_SUBDIR );
 103
 104                 rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
 105                 if( rc != 0 ) {
 106                         Debug( LDAP_DEBUG_ANY,
 107                                 "bi_back_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
 108                                 dir, db_strerror(rc), rc );
 109                         return rc;
 110                 }
 111
 112                 strcat( &dir[len], BDB_LG_SUBDIR );
 113
 114                 rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
 115                 if( rc != 0 ) {
 116                         Debug( LDAP_DEBUG_ANY,
 117                                 "bi_back_db_open: set_lg_dir(%s) failed: %s (%d)\n",
 118                                 dir, db_strerror(rc), rc );
 119                         return rc;
 120                 }
 121
 122                 strcat( &dir[len], BDB_DATA_SUBDIR );
 123
 124                 rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
 125                 if( rc != 0 ) {
 126                         Debug( LDAP_DEBUG_ANY,
 127                                 "bi_back_db_open: set_data_dir(%s) failed: %s (%d)\n",
 128                                 dir, db_strerror(rc), rc );
 129                         return rc;
 130                 }
 131         }
 132
 133         rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
 134                 bdb->bi_dbenv_home,
 135                 flags | bdb->bi_dbenv_xflags,
 136                 bdb->bi_dbenv_mode );
 137         if( rc != 0 ) {
 138                 Debug( LDAP_DEBUG_ANY,
 139                         "bi_back_db_open: dbenv_open(%s) failed: %s (%d)\n",
 140                         bdb->bi_dbenv_home, db_strerror(rc), rc );
 141                 return rc;
 142         }
 143
 144         flags = DB_THREAD | DB_CREATE;
 145
 146         /* open (and create) main database */
 147         for( i = 0; i < BDB_INDICES; i++ ) {
 148                 struct bdb_db_info *db;
 149
 150                 db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
 151
 152                 rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 153                 if( rc != 0 ) {
 154                         Debug( LDAP_DEBUG_ANY,
 155                                 "bi_back_db_open: db_create(%s) failed: %s (%d)\n",
 156                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 157                         return rc;
 158                 }
 159
 160                 rc = db->bdi_db->open( db->bdi_db,
 161                         bdbi_databases[i].file,
 162                         bdbi_databases[i].name,
 163                         bdbi_databases[i].type,
 164                         bdbi_databases[i].flags | flags,
 165                         bdb->bi_dbenv_mode );
 166
 167                 if( rc != 0 ) {
 168                         Debug( LDAP_DEBUG_ANY,
 169                                 "bi_back_db_open: db_open(%s) failed: %s (%d)\n",
 170                                 bdb->bi_dbenv_home, db_strerror(rc), rc );
 171                         return rc;
 172                 }
 173         }
 174
 175         /* <insert> open (and create) index databases */
 176
 177
 178         return 0;
 179 }
 180
 181 static int
 182 bdb_db_close( BackendDB *be )
 183 {
 184         int rc;
 185         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 186
 187         /* force a checkpoint */
 188         rc = txn_checkpoint( bdb->bi_dbenv, 0, 0, DB_FORCE );
 189         if( rc != 0 ) {
 190                 Debug( LDAP_DEBUG_ANY,
 191                         "bi_back_db_destroy: txn_checkpoint failed: %s (%d)\n",
 192                         db_strerror(rc), rc, 0 );
 193                 return rc;
 194         }
 195
 196         while( bdb->bi_ndatabases-- ) {
 197                 rc = bdb->bi_databases[bdb->bi_ndatabases]->bdi_db->close(
 198                         bdb->bi_databases[bdb->bi_ndatabases]->bdi_db, 0 );
 199         }
 200
 201         return 0;
 202 }
 203
 204 static int
 205 bdb_db_destroy( BackendDB *be )
 206 {
 207         int rc;
 208         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 209
 210         /* close db environment */
 211         rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
 212         bdb->bi_dbenv = NULL;
 213         if( rc != 0 ) {
 214                 Debug( LDAP_DEBUG_ANY,
 215                         "bi_back_db_destroy: close failed: %s (%d)\n",
 216                         db_strerror(rc), rc, 0 );
 217                 return rc;
 218         }
 219
 220         return 0;
 221 }
 222
 223 #ifdef SLAPD_BDB_DYNAMIC
 224 int back_bdb_LTX_init_module( int argc, char *argv[] ) {
 225     BackendInfo bi;
 226
 227     memset( &bi, '\0', sizeof(bi) );
 228     bi.bi_type = "bdb";
 229     bi.bi_init = bdb_initialize;
 230
 231     backend_add( &bi );
 232     return 0;
 233 }
 234 #endif /* SLAPD_BDB_DYNAMIC */
 235
 236 int
 237 bdb_initialize(
 238     BackendInfo *bi
 239 )
 240 {
 241         static char *controls[] = {
 242                 LDAP_CONTROL_MANAGEDSAIT,
 243                 NULL
 244         };
 245
 246         {       /* version check */
 247                 int major, minor, patch;
 248                 char *version = db_version( &major, &minor, &patch );
 249
 250                 if( major != DB_VERSION_MAJOR ||
 251                         minor != DB_VERSION_MINOR ||
 252                         patch < DB_VERSION_PATCH )
 253                 {
 254                         Debug( LDAP_DEBUG_ANY,
 255                                 "bi_back_initialize: version mismatch\n"
 256                                 "\texpected: " DB_VERSION_STRING "\n"
 257                                 "\tgot: %s \n", version, 0, 0 );
 258                 }
 259
 260                 Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
 261                         version, 0, 0 );
 262         }
 263
 264         bi->bi_controls = controls;
 265
 266         bi->bi_open = bdb_open;
 267         bi->bi_close = bdb_close;
 268         bi->bi_config = 0;
 269         bi->bi_destroy = bdb_destroy;
 270
 271         bi->bi_db_init = bdb_db_init;
 272         bi->bi_db_config = bdb_db_config;
 273         bi->bi_db_open = bdb_db_open;
 274         bi->bi_db_close = bdb_db_close;
 275         bi->bi_db_destroy = bdb_db_destroy;
 276
 277         bi->bi_op_add = bdb_add;
 278         bi->bi_op_compare = bdb_compare;
 279         bi->bi_op_delete = bdb_delete;
 280         bi->bi_op_search = bdb_search;
 281
 282 #if 0
 283         bi->bi_op_bind = bdb_bind;
 284         bi->bi_op_unbind = bdb_unbind;
 285         bi->bi_op_modify = bdb_modify;
 286         bi->bi_op_modrdn = bdb_modrdn;
 287         bi->bi_op_abandon = bdb_abandon;
 288
 289         bi->bi_extended = bdb_extended;
 290
 291         bi->bi_acl_group = bdb_group;
 292         bi->bi_acl_attribute = bdb_attribute;
 293         bi->bi_chk_referrals = bdb_referrals;
 294 #endif
 295
 296         bi->bi_entry_release_rw = 0;
 297
 298         /*
 299          * hooks for slap tools
 300          */
 301         bi->bi_tool_entry_open = bdb_tool_entry_open;
 302         bi->bi_tool_entry_close = bdb_tool_entry_close;
 303         bi->bi_tool_entry_first = bdb_tool_entry_next;
 304         bi->bi_tool_entry_next = bdb_tool_entry_next;
 305         bi->bi_tool_entry_get = bdb_tool_entry_get;
 306         bi->bi_tool_entry_put = bdb_tool_entry_put;
 307         bi->bi_tool_entry_reindex = 0;
 308         bi->bi_tool_sync = 0;
 309
 310         bi->bi_connection_init = 0;
 311         bi->bi_connection_destroy = 0;
 312
 313         return 0;
 314 }