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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2004 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was initially developed by Dmitry Kovalev for inclusion
  18  * by OpenLDAP Software.
  19  */
  20
  21 #include "portable.h"
  22
  23 #ifdef SLAPD_SQL
  24
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27 #include "ac/string.h"
  28
  29 #include "slap.h"
  30 #include "lber_pvt.h"
  31 #include "ldap_pvt.h"
  32 #include "proto-sql.h"
  33
  34 #define BACKSQL_DUPLICATE       (-1)
  35
  36 /*
  37  * Uses the pointer to the ObjectClass structure
  38  */
  39 static int
  40 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  41 {
  42         const backsql_oc_map_rec *m1 = v_m1, *m2 = v_m2;
  43
  44 #if 0
  45         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  46 #endif
  47         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  48 }
  49
  50 static int
  51 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  52 {
  53         const backsql_oc_map_rec *m1 = v_m1, *m2 = v_m2;
  54
  55         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  56 }
  57
  58 /*
  59  * Uses the pointer to the AttributeDescription structure
  60  */
  61 static int
  62 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  63 {
  64         const backsql_at_map_rec *m1 = v_m1, *m2 = v_m2;
  65
  66 #if 0
  67         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  68 #endif
  69         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  70 }
  71
  72 int
  73 backsql_dup_attr( void *v_m1, void *v_m2 )
  74 {
  75         backsql_at_map_rec *m1 = v_m1, *m2 = v_m2;
  76
  77         assert( m1->bam_ad == m2->bam_ad );
  78
  79         for ( ; m1->bam_next ; m1 = m1->bam_next );
  80         m1->bam_next = m2;
  81         m2->bam_next = NULL;
  82
  83         return BACKSQL_DUPLICATE;
  84 }
  85
  86 static int
  87 backsql_make_attr_query(
  88         backsql_oc_map_rec      *oc_map,
  89         backsql_at_map_rec      *at_map )
  90 {
  91         struct berbuf   bb = BB_NULL;
  92
  93         backsql_strfcat( &bb, "lblblblbcbl",
  94                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
  95                         &at_map->bam_sel_expr,
  96                         (ber_len_t)STRLENOF( " AS " ), " AS ",
  97                         &at_map->bam_ad->ad_cname,
  98                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
  99                         &at_map->bam_from_tbls,
 100                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 101                         &oc_map->bom_keytbl,
 102                         '.',
 103                         &oc_map->bom_keycol,
 104                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 105
 106         if ( at_map->bam_join_where.bv_val != NULL ) {
 107                 backsql_strfcat( &bb, "lb",
 108                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 109                                 &at_map->bam_join_where );
 110         }
 111
 112         at_map->bam_query = bb.bb_val.bv_val;
 113
 114         return 0;
 115 }
 116
 117 static int
 118 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 119 {
 120         backsql_at_map_rec      *at_map;
 121         char                    s[] = "+9223372036854775807L";
 122         struct berval           sbv;
 123         struct berbuf           bb;
 124
 125         sbv.bv_val = s;
 126         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 127         sbv.bv_len = strlen( s );
 128
 129         /* extra objectClasses */
 130         at_map = (backsql_at_map_rec *)ch_calloc(1,
 131                         sizeof( backsql_at_map_rec ) );
 132         at_map->bam_ad = slap_schema.si_ad_objectClass;
 133         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 134                         &at_map->bam_sel_expr );
 135         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 136                         &at_map->bam_from_tbls );
 137
 138         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 139         bb.bb_val = at_map->bam_from_tbls;
 140         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 141         at_map->bam_from_tbls = bb.bb_val;
 142
 143         bb.bb_val.bv_val = NULL;
 144         bb.bb_val.bv_len = 0;
 145         bb.bb_len = 0;
 146         backsql_strfcat( &bb, "lbcblb",
 147                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id and ldap_entries.keyval=" ),
 148                                 "ldap_entries.id=ldap_entry_objclasses.entry_id and ldap_entries.keyval=",
 149                         &oc_map->bom_keytbl,
 150                         '.',
 151                         &oc_map->bom_keycol,
 152                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 153                                 " and ldap_entries.oc_map_id=",
 154                         &sbv );
 155
 156         at_map->bam_oc = oc_map->bom_oc;
 157         at_map->bam_join_where = bb.bb_val;
 158         at_map->bam_add_proc = NULL;
 159         at_map->bam_delete_proc = NULL;
 160         at_map->bam_param_order = 0;
 161         at_map->bam_expect_return = 0;
 162         at_map->bam_next = NULL;
 163
 164         backsql_make_attr_query( oc_map, at_map );
 165         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 166                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 167                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 168                                 at_map->bam_ad->ad_cname.bv_val,
 169                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 170         }
 171
 172         /* referral attribute */
 173         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 174                         sizeof( backsql_at_map_rec ) );
 175         at_map->bam_ad = slap_schema.si_ad_ref;
 176         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 177         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 178
 179         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 180         bb.bb_val = at_map->bam_from_tbls;
 181         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 182         at_map->bam_from_tbls = bb.bb_val;
 183
 184         bb.bb_val.bv_val = NULL;
 185         bb.bb_val.bv_len = 0;
 186         bb.bb_len = 0;
 187         backsql_strfcat( &bb, "lbcblb",
 188                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id and ldap_entries.keyval=" ),
 189                                 "ldap_entries.id=ldap_referrals.entry_id and ldap_entries.keyval=",
 190                         &oc_map->bom_keytbl,
 191                         '.',
 192                         &oc_map->bom_keycol,
 193                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 194                                 " and ldap_entries.oc_map_id=",
 195                         &sbv );
 196
 197         at_map->bam_oc = NULL;
 198         at_map->bam_join_where = bb.bb_val;
 199         at_map->bam_add_proc = NULL;
 200         at_map->bam_delete_proc = NULL;
 201         at_map->bam_param_order = 0;
 202         at_map->bam_expect_return = 0;
 203         at_map->bam_next = NULL;
 204
 205         backsql_make_attr_query( oc_map, at_map );
 206         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 207                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 208                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 209                                 at_map->bam_ad->ad_cname.bv_val,
 210                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 211         }
 212
 213         return 1;
 214 }
 215
 216 struct backsql_attr_schema_info {
 217         backsql_info    *bas_si;
 218         SQLHDBC         bas_dbh;
 219         SQLHSTMT        bas_sth;
 220         unsigned long   *bas_oc_id;
 221         int             bas_rc;
 222 };
 223
 224 static int
 225 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 226 {
 227         RETCODE                         rc;
 228         BACKSQL_ROW_NTS                 at_row;
 229         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 230         backsql_at_map_rec              *at_map;
 231         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 232
 233         /* bas->bas_oc_id has been bound to bas->bas_sth */
 234         *bas->bas_oc_id = oc_map->bom_id;
 235
 236         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 237                 "executing at_query\n"
 238                 "    \"%s\"\n"
 239                 "    for objectClass \"%s\"\n"
 240                 "    with param oc_id=\"%lu\"\n",
 241                 bas->bas_si->at_query,
 242                 BACKSQL_OC_NAME( oc_map ),
 243                 *bas->bas_oc_id );
 244
 245         rc = SQLExecute( bas->bas_sth );
 246         if ( rc != SQL_SUCCESS ) {
 247                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 248                         "error executing at_query\n"
 249                         "    \"%s\"\n"
 250                         "    for objectClass \"%s\"\n"
 251                         "    with param oc_id=\"%lu\"\n",
 252                         bas->bas_si->at_query,
 253                         BACKSQL_OC_NAME( oc_map ),
 254                         *bas->bas_oc_id );
 255                 backsql_PrintErrors( SQL_NULL_HENV, bas->bas_dbh, bas->bas_sth, rc );
 256                 bas->bas_rc = LDAP_OTHER;
 257                 return BACKSQL_AVL_STOP;
 258         }
 259
 260         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 261         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 262                 const char      *text = NULL;
 263                 struct berval   bv;
 264                 struct berbuf   bb = BB_NULL;
 265
 266                 Debug( LDAP_DEBUG_TRACE,
 267                         "attributeType:\n"
 268                         "\tname=\"%s\"\n"
 269                         "\tsel_expr=\"%s\"\n"
 270                         "\tfrom=\"%s\"\n",
 271                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 272                         at_row.cols[ 2 ] );
 273                 Debug( LDAP_DEBUG_TRACE,
 274                         "\tjoin_where=\"%s\"\n"
 275                         "\tadd_proc=\"%s\"\n"
 276                         "\tdelete_proc=\"%s\"\n",
 277                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 278                         at_row.cols[ 5 ]);
 279                 /* TimesTen */
 280                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 281                                 at_row.cols[ 8 ], 0, 0 );
 282                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 283                                 sizeof( backsql_at_map_rec ) );
 284                 rc = slap_str2ad( at_row.cols[ 0 ],
 285                                 &at_map->bam_ad, &text );
 286                 if ( rc != LDAP_SUCCESS ) {
 287                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 288                                 "attribute \"%s\" for objectClass \"%s\" "
 289                                 "is not defined in schema: %s\n",
 290                                 at_row.cols[ 0 ],
 291                                 BACKSQL_OC_NAME( oc_map ), text );
 292                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 293                         return BACKSQL_AVL_STOP;
 294                 }
 295
 296                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 297                 if ( at_row.value_len[ 8 ] < 0 ) {
 298                         at_map->bam_sel_expr_u.bv_val = NULL;
 299                         at_map->bam_sel_expr_u.bv_len = 0;
 300
 301                 } else {
 302                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 303                                         &at_map->bam_sel_expr_u );
 304                 }
 305
 306                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 307                 backsql_merge_from_clause( &bb, &bv );
 308                 at_map->bam_from_tbls = bb.bb_val;
 309                 if ( at_row.value_len[ 3 ] < 0 ) {
 310                         at_map->bam_join_where.bv_val = NULL;
 311                         at_map->bam_join_where.bv_len = 0;
 312
 313                 } else {
 314                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 315                                         &at_map->bam_join_where );
 316                 }
 317                 at_map->bam_add_proc = NULL;
 318                 if ( at_row.value_len[ 4 ] > 0 ) {
 319                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 320                 }
 321                 at_map->bam_delete_proc = NULL;
 322                 if ( at_row.value_len[ 5 ] > 0 ) {
 323                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 324                 }
 325                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 326                                 NULL, 0 );
 327                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 328                                 NULL, 0 );
 329                 backsql_make_attr_query( oc_map, at_map );
 330                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 331                         "preconstructed query \"%s\"\n",
 332                         at_map->bam_query, 0, 0 );
 333                 at_map->bam_next = NULL;
 334                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 335                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 336                                         "duplicate attribute \"%s\" "
 337                                         "in objectClass \"%s\" map\n",
 338                                         at_map->bam_ad->ad_cname.bv_val,
 339                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 340                 }
 341
 342                 if ( bas->bas_si->upper_func.bv_val && at_map->bam_sel_expr_u.bv_val == NULL ) {
 343                         struct berbuf   bb = BB_NULL;
 344
 345                         backsql_strfcat( &bb, "bcbc",
 346                                         &bas->bas_si->upper_func,
 347                                         '(' /* ) */ ,
 348                                         &at_map->bam_sel_expr,
 349                                         /* ( */ ')' );
 350                         at_map->bam_sel_expr_u = bb.bb_val;
 351                 }
 352         }
 353         backsql_FreeRow( &at_row );
 354         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 355
 356         return BACKSQL_AVL_CONTINUE;
 357 }
 358
 359
 360 int
 361 backsql_load_schema_map( backsql_info *si, SQLHDBC dbh )
 362 {
 363         SQLHSTMT                        sth;
 364         RETCODE                         rc;
 365         BACKSQL_ROW_NTS                 oc_row;
 366         unsigned long                   oc_id;
 367         backsql_oc_map_rec              *oc_map;
 368         struct backsql_attr_schema_info bas;
 369
 370         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 371
 372         /*
 373          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 374          */
 375         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( si ) ) {
 376                 rc = backsql_Prepare( dbh, &sth,
 377                                 backsql_check_dn_ru_query, 0 );
 378                 if ( rc == SQL_SUCCESS ) {
 379                         /* Yes, the field exists */
 380                         si->bsql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 381                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 382                                 "in the schema\n", 0, 0, 0 );
 383                 } else {
 384                         /* No such field exists */
 385                         si->bsql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 386                 }
 387
 388                 SQLFreeStmt( sth, SQL_DROP );
 389         }
 390
 391         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 392                         si->oc_query, 0, 0 );
 393
 394         rc = backsql_Prepare( dbh, &sth, si->oc_query, 0 );
 395         if ( rc != SQL_SUCCESS ) {
 396                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 397                         "error preparing oc_query: \"%s\"\n",
 398                         si->oc_query, 0, 0 );
 399                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 400                 return LDAP_OTHER;
 401         }
 402
 403         rc = SQLExecute( sth );
 404         if ( rc != SQL_SUCCESS ) {
 405                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 406                         "error executing oc_query: \n", 0, 0, 0 );
 407                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 408                 return LDAP_OTHER;
 409         }
 410
 411         backsql_BindRowAsStrings( sth, &oc_row );
 412         rc = SQLFetch( sth );
 413         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 414                 int     colnum;
 415
 416                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 417                                 sizeof( backsql_oc_map_rec ) );
 418
 419                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 420
 421                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 422                 if ( oc_map->bom_oc == NULL ) {
 423                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 424                                 "objectClass \"%s\" is not defined in schema\n",
 425                                 oc_row.cols[ 1 ], 0, 0 );
 426                         return LDAP_OTHER;      /* undefined objectClass ? */
 427                 }
 428
 429                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 430                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 431                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 432                         : ch_strdup( oc_row.cols[ 4 ] );
 433
 434                 colnum = 5;
 435                 if ( BACKSQL_CREATE_NEEDS_SELECT( si ) ) {
 436                         colnum = 6;
 437                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 438                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 439                 }
 440                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 441                         : ch_strdup( oc_row.cols[ colnum ] );
 442                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 443                                 NULL, 0 );
 444
 445                 /*
 446                  * FIXME: first attempt to check for offending
 447                  * instructions in {create|delete}_proc
 448                  */
 449
 450                 oc_map->bom_attrs = NULL;
 451                 if ( avl_insert( &si->oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 452                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 453                                         "duplicate objectClass \"%s\" in objectClass map\n",
 454                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 455                         return LDAP_OTHER;
 456                 }
 457                 if ( avl_insert( &si->oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 458                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 459                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 460                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 461                         return LDAP_OTHER;
 462                 }
 463                 oc_id = oc_map->bom_id;
 464                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 465                         "objectClass \"%s\": keytbl=\"%s\" keycol=\"%s\"\n",
 466                         BACKSQL_OC_NAME( oc_map ),
 467                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 468                 if ( oc_map->bom_create_proc ) {
 469                         Debug( LDAP_DEBUG_TRACE, "create_proc=\"%s\"\n",
 470                                 oc_map->bom_create_proc, 0, 0 );
 471                 }
 472                 if ( oc_map->bom_create_keyval ) {
 473                         Debug( LDAP_DEBUG_TRACE, "create_keyval=\"%s\"\n",
 474                                 oc_map->bom_create_keyval, 0, 0 );
 475                 }
 476                 if ( oc_map->bom_delete_proc ) {
 477                         Debug( LDAP_DEBUG_TRACE, "delete_proc=\"%s\"\n",
 478                                 oc_map->bom_delete_proc, 0, 0 );
 479                 }
 480                 Debug( LDAP_DEBUG_TRACE, "expect_return: "
 481                         "add=%d, del=%d; attributes:\n",
 482                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 483                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 484
 485                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 486                         "autoadding 'objectClass' and 'ref' mappings\n",
 487                         0, 0, 0 );
 488
 489                 backsql_add_sysmaps( oc_map );
 490         }
 491
 492         backsql_FreeRow( &oc_row );
 493         SQLFreeStmt( sth, SQL_DROP );
 494
 495         /* prepare for attribute fetching */
 496         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 497                         si->at_query, 0, 0 );
 498
 499         rc = backsql_Prepare( dbh, &sth, si->at_query, 0 );
 500         if ( rc != SQL_SUCCESS ) {
 501                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 502                         "error preparing at_query: \"%s\"\n",
 503                         si->at_query, 0, 0 );
 504                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 505                 return LDAP_OTHER;
 506         }
 507
 508         rc = backsql_BindParamID( sth, 1, &oc_id );
 509         if ( rc != SQL_SUCCESS ) {
 510                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 511                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 512                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 513                 return LDAP_OTHER;
 514         }
 515
 516         bas.bas_si = si;
 517         bas.bas_dbh = dbh;
 518         bas.bas_sth = sth;
 519         bas.bas_oc_id = &oc_id;
 520         bas.bas_rc = LDAP_SUCCESS;
 521
 522         (void)avl_apply( si->oc_by_oc, backsql_oc_get_attr_mapping,
 523                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 524
 525         SQLFreeStmt( sth, SQL_DROP );
 526
 527         si->bsql_flags |= BSQLF_SCHEMA_LOADED;
 528
 529         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 530
 531         return bas.bas_rc;
 532 }
 533
 534 backsql_oc_map_rec *
 535 backsql_oc2oc( backsql_info *si, ObjectClass *oc )
 536 {
 537         backsql_oc_map_rec      tmp, *res;
 538
 539 #ifdef BACKSQL_TRACE
 540         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 541                 "searching for objectclass with name=\"%s\"\n",
 542                 oc->soc_cname.bv_val, 0, 0 );
 543 #endif /* BACKSQL_TRACE */
 544
 545         tmp.bom_oc = oc;
 546         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 547 #ifdef BACKSQL_TRACE
 548         if ( res != NULL ) {
 549                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 550                         "found name=\"%s\", id=%d\n",
 551                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 552         } else {
 553                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 554                         "not found\n", 0, 0, 0 );
 555         }
 556 #endif /* BACKSQL_TRACE */
 557
 558         return res;
 559 }
 560
 561 backsql_oc_map_rec *
 562 backsql_name2oc( backsql_info *si, struct berval *oc_name )
 563 {
 564         backsql_oc_map_rec      tmp, *res;
 565
 566 #ifdef BACKSQL_TRACE
 567         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 568                 "searching for objectclass with name=\"%s\"\n",
 569                 oc_name->bv_val, 0, 0 );
 570 #endif /* BACKSQL_TRACE */
 571
 572         tmp.bom_oc = oc_bvfind( oc_name );
 573         if ( tmp.bom_oc == NULL ) {
 574                 return NULL;
 575         }
 576
 577         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 578 #ifdef BACKSQL_TRACE
 579         if ( res != NULL ) {
 580                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 581                         "found name=\"%s\", id=%d\n",
 582                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 583         } else {
 584                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 585                         "not found\n", 0, 0, 0 );
 586         }
 587 #endif /* BACKSQL_TRACE */
 588
 589         return res;
 590 }
 591
 592 backsql_oc_map_rec *
 593 backsql_id2oc( backsql_info *si, unsigned long id )
 594 {
 595         backsql_oc_map_rec      tmp, *res;
 596
 597 #ifdef BACKSQL_TRACE
 598         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 599                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 600 #endif /* BACKSQL_TRACE */
 601
 602         tmp.bom_id = id;
 603         res = (backsql_oc_map_rec *)avl_find( si->oc_by_id, &tmp,
 604                         backsql_cmp_oc_id );
 605
 606 #ifdef BACKSQL_TRACE
 607         if ( res != NULL ) {
 608                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 609                         "found name=\"%s\", id=%d\n",
 610                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 611         } else {
 612                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 613                         "not found\n", 0, 0, 0 );
 614         }
 615 #endif /* BACKSQL_TRACE */
 616
 617         return res;
 618 }
 619
 620 backsql_at_map_rec *
 621 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 622 {
 623         backsql_at_map_rec      tmp, *res;
 624
 625 #ifdef BACKSQL_TRACE
 626         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 627                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 628                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 629 #endif /* BACKSQL_TRACE */
 630
 631         tmp.bam_ad = ad;
 632         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 633                         backsql_cmp_attr );
 634
 635 #ifdef BACKSQL_TRACE
 636         if ( res != NULL ) {
 637                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 638                         "found name=\"%s\", sel_expr=\"%s\"\n",
 639                         res->bam_ad->ad_cname.bv_val,
 640                         res->bam_sel_expr.bv_val, 0 );
 641         } else {
 642                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 643                         "not found\n", 0, 0, 0 );
 644         }
 645 #endif /* BACKSQL_TRACE */
 646
 647         return res;
 648 }
 649
 650 /* attributeType inheritance */
 651 struct supad2at_t {
 652         backsql_at_map_rec      **ret;
 653         AttributeDescription    *ad;
 654         unsigned                n;
 655 };
 656
 657 #define SUPAD2AT_STOP   (-1)
 658
 659 static int
 660 supad2at_f( void *v_at, void *v_arg )
 661 {
 662         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 663         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 664
 665         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 666                 backsql_at_map_rec      **ret;
 667                 unsigned                i;
 668
 669                 /* if already listed, holler! (should never happen) */
 670                 if ( va->ret ) {
 671                         for ( i = 0; i < va->n; i++ ) {
 672                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 673                                         break;
 674                                 }
 675                         }
 676
 677                         if ( i < va->n ) {
 678                                 return 0;
 679                         }
 680                 }
 681
 682                 ret = ch_realloc( va->ret,
 683                                 sizeof( backsql_at_map_rec *) * ( va->n + 2 ) );
 684                 if ( ret == NULL ) {
 685                         ch_free( va->ret );
 686                         return SUPAD2AT_STOP;
 687                 }
 688
 689                 ret[ va->n ] = at;
 690                 va->n++;
 691                 ret[ va->n ] = NULL;
 692                 va->ret = ret;
 693         }
 694
 695         return 0;
 696 }
 697
 698 /*
 699  * stores in *pret a NULL terminated array of pointers
 700  * to backsql_at_map_rec whose attributeType is supad->ad_type
 701  * or derived from it
 702  */
 703 int
 704 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 705                 backsql_at_map_rec ***pret )
 706 {
 707         struct supad2at_t       va;
 708         int                     rc;
 709
 710         assert( objclass );
 711         assert( supad );
 712         assert( pret );
 713
 714         *pret = NULL;
 715
 716         va.ret = NULL;
 717         va.ad = supad;
 718         va.n = 0;
 719
 720         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 721                         SUPAD2AT_STOP, AVL_INORDER );
 722         if ( rc == SUPAD2AT_STOP ) {
 723                 return -1;
 724         }
 725
 726         *pret = va.ret;
 727
 728         return 0;
 729 }
 730
 731 static void
 732 backsql_free_attr( void *v_at )
 733 {
 734         backsql_at_map_rec      *at = v_at;
 735
 736         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 737                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 738         ch_free( at->bam_sel_expr.bv_val );
 739         if ( at->bam_from_tbls.bv_val != NULL ) {
 740                 ch_free( at->bam_from_tbls.bv_val );
 741         }
 742         if ( at->bam_join_where.bv_val != NULL ) {
 743                 ch_free( at->bam_join_where.bv_val );
 744         }
 745         if ( at->bam_add_proc != NULL ) {
 746                 ch_free( at->bam_add_proc );
 747         }
 748         if ( at->bam_delete_proc != NULL ) {
 749                 ch_free( at->bam_delete_proc );
 750         }
 751         if ( at->bam_query ) {
 752                 ch_free( at->bam_query );
 753         }
 754
 755         /* TimesTen */
 756         if ( at->bam_sel_expr_u.bv_val ) {
 757                 ch_free( at->bam_sel_expr_u.bv_val );
 758         }
 759
 760         if ( at->bam_next ) {
 761                 backsql_free_attr( at->bam_next );
 762         }
 763
 764         ch_free( at );
 765
 766         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 767 }
 768
 769 static void
 770 backsql_free_oc( void *v_oc )
 771 {
 772         backsql_oc_map_rec      *oc = v_oc;
 773
 774         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 775                         BACKSQL_OC_NAME( oc ), 0, 0 );
 776         avl_free( oc->bom_attrs, backsql_free_attr );
 777         ch_free( oc->bom_keytbl.bv_val );
 778         ch_free( oc->bom_keycol.bv_val );
 779         if ( oc->bom_create_proc != NULL ) {
 780                 ch_free( oc->bom_create_proc );
 781         }
 782         if ( oc->bom_create_keyval != NULL ) {
 783                 ch_free( oc->bom_create_keyval );
 784         }
 785         if ( oc->bom_delete_proc != NULL ) {
 786                 ch_free( oc->bom_delete_proc );
 787         }
 788         ch_free( oc );
 789
 790         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 791 }
 792
 793 int
 794 backsql_destroy_schema_map( backsql_info *si )
 795 {
 796         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 797         avl_free( si->oc_by_oc, 0 );
 798         avl_free( si->oc_by_id, backsql_free_oc );
 799         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 800         return 0;
 801 }
 802
 803 #endif /* SLAPD_SQL */
 804