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

   1 /*
   2  *       Copyright 1999, Dmitry Kovalev <mit@openldap.org>, All rights reserved.
   3  *
   4  *       Redistribution and use in source and binary forms are permitted only
   5  *       as authorized by the OpenLDAP Public License.  A copy of this
   6  *       license is available at http://www.OpenLDAP.org/license.html or
   7  *       in file LICENSE in the top-level directory of the distribution.
   8  */
   9
  10 #include "portable.h"
  11
  12 #ifdef SLAPD_SQL
  13
  14 #include <stdio.h>
  15 #include <sys/types.h>
  16 #include "slap.h"
  17 #include "ldap_pvt.h"
  18 #include "back-sql.h"
  19 #include "sql-wrap.h"
  20 #include "schema-map.h"
  21 #include "util.h"
  22
  23 #ifdef SLAPD_SQL_DYNAMIC
  24
  25 int
  26 backsql_LTX_init_module(
  27         int             argc,
  28         char            *argv[] )
  29 {
  30         BackendInfo bi;
  31
  32         memset( &bi, '\0', sizeof( bi ) );
  33         bi.bi_type = "sql";
  34         bi.bi_init = backbacksql_initialize;
  35
  36         backend_add( &bi );
  37         return 0;
  38 }
  39
  40 #endif /* SLAPD_SHELL_DYNAMIC */
  41
  42 int
  43 sql_back_initialize(
  44         BackendInfo     *bi )
  45 {
  46         static char *controls[] = {
  47 #ifdef LDAP_CONTROL_NOOP
  48                 LDAP_CONTROL_NOOP,
  49 #endif
  50 #ifdef LDAP_CONTROL_VALUESRETURNFILTER
  51                 LDAP_CONTROL_VALUESRETURNFILTER,
  52 #endif
  53                 NULL
  54         };
  55
  56         bi->bi_controls = controls;
  57
  58         Debug( LDAP_DEBUG_TRACE,"==>backsql_initialize()\n", 0, 0, 0 );
  59
  60         bi->bi_open = 0;
  61         bi->bi_config = 0;
  62         bi->bi_close = 0;
  63         bi->bi_destroy = 0;
  64
  65         bi->bi_db_init = backsql_db_init;
  66         bi->bi_db_config = backsql_db_config;
  67         bi->bi_db_open = backsql_db_open;
  68         bi->bi_db_close = backsql_db_close;
  69         bi->bi_db_destroy = backsql_db_destroy;
  70
  71 #ifdef BACKSQL_ALL_DONE
  72         bi->bi_op_abandon = backsql_abandon;
  73         bi->bi_op_compare = backsql_compare;
  74 #else
  75         bi->bi_op_abandon = 0;
  76         bi->bi_op_compare = 0;
  77 #endif
  78         bi->bi_op_bind = backsql_bind;
  79         bi->bi_op_unbind = backsql_unbind;
  80         bi->bi_op_search = backsql_search;
  81         bi->bi_op_modify = backsql_modify;
  82         bi->bi_op_modrdn = backsql_modrdn;
  83         bi->bi_op_add = backsql_add;
  84         bi->bi_op_delete = backsql_delete;
  85
  86         bi->bi_acl_group = 0;
  87         bi->bi_acl_attribute = 0;
  88         bi->bi_chk_referrals = 0;
  89         bi->bi_operational = backsql_operational;
  90
  91         bi->bi_connection_init = 0;
  92         bi->bi_connection_destroy = backsql_connection_destroy;
  93
  94         Debug( LDAP_DEBUG_TRACE,"<==backsql_initialize()\n", 0, 0, 0 );
  95         return 0;
  96 }
  97
  98
  99 int
 100 backsql_destroy(
 101         BackendInfo     *bi )
 102 {
 103         Debug( LDAP_DEBUG_TRACE, "==>backsql_destroy()\n", 0, 0, 0 );
 104         Debug( LDAP_DEBUG_TRACE, "<==backsql_destroy()\n", 0, 0, 0 );
 105         return 0;
 106 }
 107
 108 int
 109 backsql_db_init(
 110         BackendDB       *bd )
 111 {
 112         backsql_info *si;
 113
 114         Debug( LDAP_DEBUG_TRACE, "==>backsql_db_init()\n", 0, 0, 0 );
 115         si = (backsql_info *)ch_calloc( 1, sizeof( backsql_info ) );
 116         memset( si, '\0', sizeof( backsql_info ) );
 117         ldap_pvt_thread_mutex_init( &si->dbconn_mutex );
 118         ldap_pvt_thread_mutex_init( &si->schema_mutex );
 119         backsql_init_db_env( si );
 120
 121         bd->be_private = si;
 122         Debug( LDAP_DEBUG_TRACE, "<==backsql_db_init()\n", 0, 0, 0 );
 123         return 0;
 124 }
 125
 126 int
 127 backsql_db_destroy(
 128         BackendDB       *bd )
 129 {
 130         backsql_info *si = (backsql_info*)bd->be_private;
 131
 132         Debug( LDAP_DEBUG_TRACE, "==>backsql_db_destroy()\n", 0, 0, 0 );
 133         ldap_pvt_thread_mutex_lock( &si->dbconn_mutex );
 134         backsql_free_db_env( si );
 135         ldap_pvt_thread_mutex_unlock( &si->dbconn_mutex );
 136         ldap_pvt_thread_mutex_destroy( &si->dbconn_mutex );
 137         ldap_pvt_thread_mutex_lock( &si->schema_mutex );
 138         backsql_destroy_schema_map( si );
 139         ldap_pvt_thread_mutex_unlock( &si->schema_mutex );
 140         ldap_pvt_thread_mutex_destroy( &si->schema_mutex );
 141         free( si->dbname );
 142         free( si->dbuser );
 143         if ( si->dbpasswd ) {
 144                 free( si->dbpasswd );
 145         }
 146         if ( si->dbhost ) {
 147                 free( si->dbhost );
 148         }
 149         if ( si->upper_func.bv_val ) {
 150                 free( si->upper_func.bv_val );
 151                 free( si->upper_func_open.bv_val );
 152                 free( si->upper_func_close.bv_val );
 153         }
 154
 155         free( si->subtree_cond.bv_val );
 156         free( si->oc_query );
 157         free( si->at_query );
 158         free( si->insentry_query );
 159         free( si->delentry_query );
 160         free( si );
 161
 162         Debug( LDAP_DEBUG_TRACE, "<==backsql_db_destroy()\n", 0, 0, 0 );
 163         return 0;
 164 }
 165
 166 int
 167 backsql_db_open(
 168         BackendDB       *bd )
 169 {
 170         backsql_info    *si = (backsql_info*)bd->be_private;
 171         Connection      tmp;
 172         SQLHDBC         dbh;
 173         ber_len_t       idq_len;
 174         struct berval   bv;
 175
 176         Debug( LDAP_DEBUG_TRACE, "==>backsql_db_open(): "
 177                 "testing RDBMS connection\n", 0, 0, 0 );
 178         if ( si->dbname == NULL ) {
 179                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 180                         "datasource name not specified "
 181                         "(use \"dbname\" directive in slapd.conf)\n", 0, 0, 0 );
 182                 return 1;
 183         }
 184
 185         if ( si->concat_func == NULL ) {
 186                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 187                         "concat func not specified (use \"concat_pattern\" "
 188                         "directive in slapd.conf)\n", 0, 0, 0 );
 189
 190                 if ( backsql_split_pattern( backsql_def_concat_func,
 191                                 &si->concat_func, 2 ) ) {
 192                         Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 193                                 "unable to parse pattern '%s'",
 194                                 backsql_def_concat_func, 0, 0 );
 195                         return 1;
 196                 }
 197         }
 198
 199         /*
 200          * Prepare cast string as required
 201          */
 202         if ( si->upper_func.bv_val ) {
 203                 char buf[1024];
 204
 205                 if ( BACKSQL_UPPER_NEEDS_CAST( si ) ) {
 206                         snprintf( buf, sizeof( buf ),
 207                                 "%s(cast (" /* ? as varchar(%d))) */ ,
 208                                 si->upper_func.bv_val );
 209                         ber_str2bv( buf, 0, 1, &si->upper_func_open );
 210
 211                         snprintf( buf, sizeof( buf ),
 212                                 /* (cast(? */ " as varchar(%d)))",
 213                                 BACKSQL_MAX_DN_LEN );
 214                         ber_str2bv( buf, 0, 1, &si->upper_func_close );
 215
 216                 } else {
 217                         snprintf( buf, sizeof( buf ), "%s(" /* ?) */ ,
 218                                         si->upper_func.bv_val );
 219                         ber_str2bv( buf, 0, 1, &si->upper_func_open );
 220
 221                         ber_str2bv( /* (? */ ")", 0, 1, &si->upper_func_close );
 222                 }
 223         }
 224
 225         if ( si->dbuser == NULL ) {
 226                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 227                         "user name not specified "
 228                         "(use \"dbuser\" directive in slapd.conf)\n", 0, 0, 0 );
 229                 return 1;
 230         }
 231
 232         if ( si->subtree_cond.bv_val == NULL ) {
 233                 /*
 234                  * Prepare concat function for subtree search condition
 235                  */
 236                 struct berval   concat;
 237                 ber_len_t       len = 0;
 238                 struct berval   values[] = {
 239                         { sizeof( "'%'" ) - 1,  "'%'" },
 240                         { sizeof( "?" ) - 1,    "?" },
 241                         { 0,                    NULL }
 242                 };
 243
 244                 if ( backsql_prepare_pattern( si->concat_func, values,
 245                                 &concat ) ) {
 246                         Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 247                                 "unable to prepare CONCAT pattern", 0, 0, 0 );
 248                         return 1;
 249                 }
 250
 251                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 252                         "subtree search SQL condition not specified "
 253                         "(use \"subtree_cond\" directive in slapd.conf)\n",
 254                         0, 0, 0);
 255
 256                 si->subtree_cond.bv_val = NULL;
 257                 si->subtree_cond.bv_len = 0;
 258
 259                 if ( si->upper_func.bv_val ) {
 260
 261                         /*
 262                          * UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%',?))
 263                          */
 264
 265                         backsql_strfcat( &si->subtree_cond, &len, "blbbb",
 266                                         &si->upper_func,
 267                                         (ber_len_t)sizeof( "(ldap_entries.dn) LIKE " ) - 1,
 268                                                 "(ldap_entries.dn) LIKE ",
 269                                         &si->upper_func_open,
 270                                         &concat,
 271                                         &si->upper_func_close );
 272
 273                 } else {
 274
 275                         /*
 276                          * ldap_entries.dn LIKE CONCAT('%',?)
 277                          */
 278
 279                         backsql_strfcat( &si->subtree_cond, &len, "lb",
 280                                         (ber_len_t)sizeof( "ldap_entries.dn LIKE " ) - 1,
 281                                                 "ldap_entries.dn LIKE ",
 282                                         &concat );
 283                 }
 284
 285                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 286                         "setting '%s' as default\n",
 287                         si->subtree_cond.bv_val, 0, 0 );
 288         }
 289
 290         if ( si->children_cond.bv_val == NULL ) {
 291                 ber_len_t       len = 0;
 292
 293                 if ( si->upper_func.bv_val ) {
 294
 295                         /*
 296                          * UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%,',?))
 297                          */
 298
 299                         backsql_strfcat( &si->children_cond, &len, "blbl",
 300                                         &si->upper_func,
 301                                         (ber_len_t)sizeof( "(ldap_entries.dn)=" ) - 1,
 302                                                 "(ldap_entries.dn)=",
 303                                         &si->upper_func,
 304                                         (ber_len_t)sizeof( "(?)" ) - 1, "(?)" );
 305
 306                 } else {
 307
 308                         /*
 309                          * ldap_entries.dn LIKE CONCAT('%,',?)
 310                          */
 311
 312                         backsql_strfcat( &si->children_cond, &len, "l",
 313                                         (ber_len_t)sizeof( "ldap_entries.dn=?" ) - 1,
 314                                                 "ldap_entries.dn=?");
 315                 }
 316
 317                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 318                         "setting '%s' as default\n",
 319                         si->children_cond.bv_val, 0, 0 );
 320         }
 321
 322         if ( si->oc_query == NULL ) {
 323                 if ( BACKSQL_CREATE_NEEDS_SELECT( si ) ) {
 324                         si->oc_query =
 325                                 ch_strdup( backsql_def_needs_select_oc_query );
 326
 327                 } else {
 328                         si->oc_query = ch_strdup( backsql_def_oc_query );
 329                 }
 330
 331                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 332                         "objectclass mapping SQL statement not specified "
 333                         "(use \"oc_query\" directive in slapd.conf)\n",
 334                         0, 0, 0 );
 335                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 336                         "setting '%s' by default\n", si->oc_query, 0, 0 );
 337         }
 338
 339         if ( si->at_query == NULL ) {
 340                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 341                         "attribute mapping SQL statement not specified "
 342                         "(use \"at_query\" directive in slapd.conf)\n",
 343                         0, 0, 0 );
 344                 Debug(LDAP_DEBUG_TRACE, "backsql_db_open(): "
 345                         "setting '%s' by default\n",
 346                         backsql_def_at_query, 0, 0 );
 347                 si->at_query = ch_strdup( backsql_def_at_query );
 348         }
 349
 350         if ( si->insentry_query == NULL ) {
 351                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 352                         "entry insertion SQL statement not specified "
 353                         "(use \"insentry_query\" directive in slapd.conf)\n",
 354                         0, 0, 0 );
 355                 Debug(LDAP_DEBUG_TRACE, "backsql_db_open(): "
 356                         "setting '%s' by default\n",
 357                         backsql_def_insentry_query, 0, 0 );
 358                 si->insentry_query = ch_strdup( backsql_def_insentry_query );
 359         }
 360
 361         if ( si->delentry_query == NULL ) {
 362                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 363                         "entry deletion SQL statement not specified "
 364                         "(use \"delentry_query\" directive in slapd.conf)\n",
 365                         0, 0, 0 );
 366                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 367                         "setting '%s' by default\n",
 368                         backsql_def_delentry_query, 0, 0 );
 369                 si->delentry_query = ch_strdup( backsql_def_delentry_query );
 370         }
 371
 372
 373         tmp.c_connid =- 1;
 374         if ( backsql_get_db_conn( bd, &tmp, &dbh ) != LDAP_SUCCESS ) {
 375                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 376                         "connection failed, exiting\n", 0, 0, 0 );
 377                 return 1;
 378         }
 379
 380         /*
 381          * Prepare ID selection query
 382          */
 383         si->id_query = NULL;
 384         idq_len = 0;
 385
 386         bv.bv_val = NULL;
 387         bv.bv_len = 0;
 388         if ( si->upper_func.bv_val == NULL ) {
 389                 backsql_strcat( &bv, &idq_len, backsql_id_query,
 390                                 "dn=?", NULL );
 391         } else {
 392                 if ( BACKSQL_HAS_LDAPINFO_DN_RU( si ) ) {
 393                         backsql_strcat( &bv, &idq_len, backsql_id_query,
 394                                         "dn_ru=?", NULL );
 395                 } else {
 396                         if ( BACKSQL_USE_REVERSE_DN( si ) ) {
 397                                 backsql_strfcat( &bv, &idq_len, "sbl",
 398                                                 backsql_id_query,
 399                                                 &si->upper_func,
 400                                                 (ber_len_t)sizeof( "(dn)=?" ) - 1, "(dn)=?" );
 401                         } else {
 402                                 backsql_strfcat( &bv, &idq_len, "sblbcb",
 403                                                 backsql_id_query,
 404                                                 &si->upper_func,
 405                                                 (ber_len_t)sizeof( "(dn)=" ) - 1, "(dn)=",
 406                                                 &si->upper_func_open,
 407                                                 '?',
 408                                                 &si->upper_func_close );
 409                         }
 410                 }
 411         }
 412         si->id_query = bv.bv_val;
 413
 414         /*
 415          * Prepare children ID selection query
 416          */
 417         si->has_children_query = NULL;
 418         idq_len = 0;
 419
 420         bv.bv_val = NULL;
 421         bv.bv_len = 0;
 422         backsql_strfcat( &bv, &idq_len, "sb",
 423                         "SELECT COUNT(distinct subordinates.id) FROM ldap_entries,ldap_entries AS subordinates WHERE subordinates.parent=ldap_entries.id AND ",
 424
 425                         &si->children_cond );
 426         si->has_children_query = bv.bv_val;
 427
 428         backsql_free_db_conn( bd, &tmp );
 429         if ( !BACKSQL_SCHEMA_LOADED( si ) ) {
 430                 Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
 431                         "test failed, schema map not loaded - exiting\n",
 432                         0, 0, 0 );
 433                 return 1;
 434         }
 435
 436         Debug( LDAP_DEBUG_TRACE, "<==backsql_db_open(): "
 437                 "test succeeded, schema map loaded\n", 0, 0, 0 );
 438         return 0;
 439 }
 440
 441 int
 442 backsql_db_close(
 443         BackendDB       *bd )
 444 {
 445         Debug( LDAP_DEBUG_TRACE, "==>backsql_db_close()\n", 0, 0, 0 );
 446         Debug( LDAP_DEBUG_TRACE, "<==backsql_db_close()\n", 0, 0, 0 );
 447         return 0;
 448 }
 449
 450 int
 451 backsql_connection_destroy(
 452         BackendDB       *be,
 453         Connection      *conn )
 454 {
 455         Debug( LDAP_DEBUG_TRACE, "==>backsql_connection_destroy()\n", 0, 0, 0 );
 456         backsql_free_db_conn( be, conn );
 457         Debug( LDAP_DEBUG_TRACE, "<==backsql_connection_destroy()\n", 0, 0, 0 );
 458         return 0;
 459 }
 460
 461 #endif /* SLAPD_SQL */
 462