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 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * Portions Copyright 2002 Pierangelo Masarati.
   7  * Portions Copyright 2004 Mark Adamson.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by Dmitry Kovalev for inclusion
  20  * by OpenLDAP Software.  Additional significant contributors include
  21  * Pierangelo Masarati and Mark Adamson.
  22  */
  23
  24 #include "portable.h"
  25
  26 #include <stdio.h>
  27 #include <sys/types.h>
  28 #include "ac/string.h"
  29
  30 #include "slap.h"
  31 #include "proto-sql.h"
  32
  33 #define BACKSQL_DUPLICATE       (-1)
  34
  35 /* NOTE: by default, cannot just compare pointers because
  36  * objectClass/attributeType order would be machine-dependent
  37  * (and tests would fail!); however, if you don't want to run
  38  * tests, or see attributeTypes written in the same order
  39  * they are defined, define */
  40 /* #undef BACKSQL_USE_PTR_CMP */
  41
  42 /*
  43  * Uses the pointer to the ObjectClass structure
  44  */
  45 static int
  46 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  47 {
  48         const backsql_oc_map_rec        *m1 = v_m1,
  49                                         *m2 = v_m2;
  50
  51 #ifdef BACKSQL_USE_PTR_CMP
  52         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  53 #else /* ! BACKSQL_USE_PTR_CMP */
  54         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  55 #endif /* ! BACKSQL_USE_PTR_CMP */
  56 }
  57
  58 static int
  59 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  60 {
  61         const backsql_oc_map_rec        *m1 = v_m1,
  62                                         *m2 = v_m2;
  63
  64         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  65 }
  66
  67 /*
  68  * Uses the pointer to the AttributeDescription structure
  69  */
  70 static int
  71 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  72 {
  73         const backsql_at_map_rec        *m1 = v_m1,
  74                                         *m2 = v_m2;
  75
  76 #ifdef BACKSQL_USE_PTR_CMP
  77         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  78 #else /* ! BACKSQL_USE_PTR_CMP */
  79         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  80 #endif /* ! BACKSQL_USE_PTR_CMP */
  81 }
  82
  83 int
  84 backsql_dup_attr( void *v_m1, void *v_m2 )
  85 {
  86         backsql_at_map_rec              *m1 = v_m1,
  87                                         *m2 = v_m2;
  88
  89         assert( m1->bam_ad == m2->bam_ad );
  90
  91         /* duplicate definitions of attributeTypes are appended;
  92          * this allows to define multiple rules for the same
  93          * attributeType.  Use with care! */
  94         for ( ; m1->bam_next ; m1 = m1->bam_next );
  95         m1->bam_next = m2;
  96         m2->bam_next = NULL;
  97
  98         return BACKSQL_DUPLICATE;
  99 }
 100
 101 static int
 102 backsql_make_attr_query(
 103         backsql_oc_map_rec      *oc_map,
 104         backsql_at_map_rec      *at_map )
 105 {
 106         struct berbuf   bb = BB_NULL;
 107
 108         backsql_strfcat( &bb, "lblblblbcbl",
 109                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 110                         &at_map->bam_sel_expr,
 111                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING BACKSQL_ALIASING_QUOTE ),
 112                                 " " BACKSQL_ALIASING BACKSQL_ALIASING_QUOTE,
 113                         &at_map->bam_ad->ad_cname,
 114                         (ber_len_t)STRLENOF( BACKSQL_ALIASING_QUOTE " FROM " ),
 115                                 BACKSQL_ALIASING_QUOTE " FROM ",
 116                         &at_map->bam_from_tbls,
 117                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 118                         &oc_map->bom_keytbl,
 119                         '.',
 120                         &oc_map->bom_keycol,
 121                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 122
 123         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 124                 backsql_strfcat( &bb, "lb",
 125                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 126                                 &at_map->bam_join_where );
 127         }
 128
 129         backsql_strfcat( &bb, "lbl",
 130                         (ber_len_t)STRLENOF( " ORDER BY " BACKSQL_ALIASING_QUOTE ),
 131                                 " ORDER BY " BACKSQL_ALIASING_QUOTE,
 132                         &at_map->bam_ad->ad_cname,
 133                         (ber_len_t)STRLENOF( BACKSQL_ALIASING_QUOTE ),
 134                                 BACKSQL_ALIASING_QUOTE );
 135
 136         at_map->bam_query = bb.bb_val.bv_val;
 137
 138 #ifdef BACKSQL_COUNTQUERY
 139         /* Query to count how many rows will be returned. */
 140         BER_BVZERO( &bb.bb_val );
 141         bb.bb_len = 0;
 142         backsql_strfcat( &bb, "lblbcbl",
 143                         (ber_len_t)STRLENOF( "SELECT COUNT(*) FROM " ),
 144                                 "SELECT COUNT(*) FROM ",
 145                         &at_map->bam_from_tbls,
 146                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 147                         &oc_map->bom_keytbl,
 148                         '.',
 149                         &oc_map->bom_keycol,
 150                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 151
 152         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 153                 backsql_strfcat( &bb, "lb",
 154                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 155                                 &at_map->bam_join_where );
 156         }
 157
 158         at_map->bam_countquery = bb.bb_val.bv_val;
 159 #endif /* BACKSQL_COUNTQUERY */
 160
 161         return 0;
 162 }
 163
 164 static int
 165 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 166 {
 167         backsql_at_map_rec      *at_map;
 168         char                    s[] = "+9223372036854775807L";
 169         struct berval           sbv;
 170         struct berbuf           bb;
 171
 172         sbv.bv_val = s;
 173         sbv.bv_len = snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 174
 175         /* extra objectClasses */
 176         at_map = (backsql_at_map_rec *)ch_calloc(1,
 177                         sizeof( backsql_at_map_rec ) );
 178         at_map->bam_ad = slap_schema.si_ad_objectClass;
 179         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 180                         &at_map->bam_sel_expr );
 181         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 182                         &at_map->bam_from_tbls );
 183
 184         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 185         bb.bb_val = at_map->bam_from_tbls;
 186         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 187         at_map->bam_from_tbls = bb.bb_val;
 188
 189         BER_BVZERO( &bb.bb_val );
 190         bb.bb_len = 0;
 191         backsql_strfcat( &bb, "lbcblb",
 192                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 193                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 194                         &oc_map->bom_keytbl,
 195                         '.',
 196                         &oc_map->bom_keycol,
 197                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 198                                 " and ldap_entries.oc_map_id=",
 199                         &sbv );
 200         at_map->bam_join_where = bb.bb_val;
 201
 202         at_map->bam_oc = oc_map->bom_oc;
 203
 204         at_map->bam_add_proc = NULL;
 205         {
 206                 char    tmp[] =
 207                         "INSERT INTO ldap_entry_objclasses "
 208                         "(entry_id,oc_name) VALUES "
 209                         "((SELECT id FROM ldap_entries "
 210                         "WHERE oc_map_id="
 211                         "18446744073709551615UL "       /* 64 bit ULONG */
 212                         "AND keyval=?),?)";
 213                 snprintf( tmp, sizeof(tmp),
 214                         "INSERT INTO ldap_entry_objclasses "
 215                         "(entry_id,oc_name) VALUES "
 216                         "((SELECT id FROM ldap_entries "
 217                         "WHERE oc_map_id=%lu "
 218                         "AND keyval=?),?)", oc_map->bom_id );
 219                 at_map->bam_add_proc = ch_strdup( tmp );
 220         }
 221
 222         at_map->bam_delete_proc = NULL;
 223         {
 224                 char    tmp[] =
 225                         "DELETE FROM ldap_entry_objclasses "
 226                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 227                         "WHERE oc_map_id="
 228                         "18446744073709551615UL "       /* 64 bit ULONG */
 229                         "AND keyval=?) AND oc_name=?";
 230                 snprintf( tmp, sizeof(tmp),
 231                         "DELETE FROM ldap_entry_objclasses "
 232                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 233                         "WHERE oc_map_id=%lu"
 234                         "AND keyval=?) AND oc_name=?",
 235                         oc_map->bom_id );
 236                 at_map->bam_delete_proc = ch_strdup( tmp );
 237         }
 238
 239         at_map->bam_param_order = 0;
 240         at_map->bam_expect_return = 0;
 241         at_map->bam_next = NULL;
 242
 243         backsql_make_attr_query( oc_map, at_map );
 244         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 245                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 246                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 247                                 at_map->bam_ad->ad_cname.bv_val,
 248                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 249         }
 250
 251         /* FIXME: we need to correct the objectClass join_where
 252          * after the attribute query is built */
 253         ch_free( at_map->bam_join_where.bv_val );
 254         BER_BVZERO( &bb.bb_val );
 255         bb.bb_len = 0;
 256         backsql_strfcat( &bb, "lbcblb",
 257                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 258                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 259                         &oc_map->bom_keytbl,
 260                         '.',
 261                         &oc_map->bom_keycol,
 262                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 263                                 " AND ldap_entries.oc_map_id=",
 264                         &sbv );
 265         at_map->bam_join_where = bb.bb_val;
 266
 267         return 1;
 268 }
 269
 270 struct backsql_attr_schema_info {
 271         backsql_info    *bas_bi;
 272         SQLHDBC         bas_dbh;
 273         SQLHSTMT        bas_sth;
 274         unsigned long   *bas_oc_id;
 275         int             bas_rc;
 276 };
 277
 278 static int
 279 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 280 {
 281         RETCODE                         rc;
 282         BACKSQL_ROW_NTS                 at_row;
 283         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 284         backsql_at_map_rec              *at_map;
 285         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 286
 287         /* bas->bas_oc_id has been bound to bas->bas_sth */
 288         *bas->bas_oc_id = oc_map->bom_id;
 289
 290         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 291                 "executing at_query\n"
 292                 "    \"%s\"\n"
 293                 "    for objectClass \"%s\"\n"
 294                 "    with param oc_id=\"%lu\"\n",
 295                 bas->bas_bi->sql_at_query,
 296                 BACKSQL_OC_NAME( oc_map ),
 297                 *bas->bas_oc_id );
 298
 299         rc = SQLExecute( bas->bas_sth );
 300         if ( rc != SQL_SUCCESS ) {
 301                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 302                         "error executing at_query\n"
 303                         "    \"%s\"\n"
 304                         "    for objectClass \"%s\"\n"
 305                         "    with param oc_id=\"%lu\"\n",
 306                         bas->bas_bi->sql_at_query,
 307                         BACKSQL_OC_NAME( oc_map ),
 308                         *bas->bas_oc_id );
 309                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 310                                 bas->bas_dbh, bas->bas_sth, rc );
 311                 bas->bas_rc = LDAP_OTHER;
 312                 return BACKSQL_AVL_STOP;
 313         }
 314
 315         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 316         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 317                 const char      *text = NULL;
 318                 char            *next = NULL;
 319                 struct berval   bv;
 320                 struct berbuf   bb = BB_NULL;
 321
 322                 Debug( LDAP_DEBUG_TRACE,
 323                         "attributeType:\n"
 324                         "\tname=\"%s\"\n"
 325                         "\tsel_expr=\"%s\"\n"
 326                         "\tfrom=\"%s\"\n",
 327                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 328                         at_row.cols[ 2 ] );
 329                 Debug( LDAP_DEBUG_TRACE,
 330                         "\tjoin_where=\"%s\"\n"
 331                         "\tadd_proc=\"%s\"\n"
 332                         "\tdelete_proc=\"%s\"\n",
 333                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 334                         at_row.cols[ 5 ]);
 335                 /* TimesTen */
 336                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 337                                 at_row.cols[ 8 ], 0, 0 );
 338                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 339                                 sizeof( backsql_at_map_rec ) );
 340                 rc = slap_str2ad( at_row.cols[ 0 ],
 341                                 &at_map->bam_ad, &text );
 342                 if ( rc != LDAP_SUCCESS ) {
 343                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 344                                 "attribute \"%s\" for objectClass \"%s\" "
 345                                 "is not defined in schema: %s\n",
 346                                 at_row.cols[ 0 ],
 347                                 BACKSQL_OC_NAME( oc_map ), text );
 348                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 349                         return BACKSQL_AVL_STOP;
 350                 }
 351
 352                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 353                 if ( at_row.value_len[ 8 ] < 0 ) {
 354                         BER_BVZERO( &at_map->bam_sel_expr_u );
 355
 356                 } else {
 357                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 358                                         &at_map->bam_sel_expr_u );
 359                 }
 360
 361                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 362                 backsql_merge_from_clause( &bb, &bv );
 363                 at_map->bam_from_tbls = bb.bb_val;
 364                 if ( at_row.value_len[ 3 ] < 0 ) {
 365                         BER_BVZERO( &at_map->bam_join_where );
 366
 367                 } else {
 368                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 369                                         &at_map->bam_join_where );
 370                 }
 371                 at_map->bam_add_proc = NULL;
 372                 if ( at_row.value_len[ 4 ] > 0 ) {
 373                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 374                 }
 375                 at_map->bam_delete_proc = NULL;
 376                 if ( at_row.value_len[ 5 ] > 0 ) {
 377                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 378                 }
 379                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 380                                 &next, 0 );
 381                 if ( next == at_row.cols[ 6 ] || next[0] != '\0' ) {
 382                         /* error */
 383                 }
 384                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 385                                 &next, 0 );
 386                 if ( next == at_row.cols[ 7 ] || next[0] != '\0' ) {
 387                         /* error */
 388                 }
 389                 backsql_make_attr_query( oc_map, at_map );
 390                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 391                         "preconstructed query \"%s\"\n",
 392                         at_map->bam_query, 0, 0 );
 393                 at_map->bam_next = NULL;
 394                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 395                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 396                                         "duplicate attribute \"%s\" "
 397                                         "in objectClass \"%s\" map\n",
 398                                         at_map->bam_ad->ad_cname.bv_val,
 399                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 400                 }
 401
 402                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 403                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 404                 {
 405                         struct berbuf   bb = BB_NULL;
 406
 407                         backsql_strfcat( &bb, "bcbc",
 408                                         &bas->bas_bi->sql_upper_func,
 409                                         '(' /* ) */ ,
 410                                         &at_map->bam_sel_expr,
 411                                         /* ( */ ')' );
 412                         at_map->bam_sel_expr_u = bb.bb_val;
 413                 }
 414         }
 415         backsql_FreeRow( &at_row );
 416         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 417
 418         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 419                 "autoadding 'objectClass' and 'ref' mappings\n",
 420                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 421
 422         (void)backsql_add_sysmaps( oc_map );
 423
 424         return BACKSQL_AVL_CONTINUE;
 425 }
 426
 427
 428 int
 429 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 430 {
 431         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 432         RETCODE                         rc;
 433         BACKSQL_ROW_NTS                 oc_row;
 434         unsigned long                   oc_id;
 435         backsql_oc_map_rec              *oc_map;
 436         struct backsql_attr_schema_info bas;
 437
 438         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 439
 440         /*
 441          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 442          */
 443         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 444                 rc = backsql_Prepare( dbh, &sth,
 445                                 backsql_check_dn_ru_query, 0 );
 446                 if ( rc == SQL_SUCCESS ) {
 447                         /* Yes, the field exists */
 448                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 449                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 450                                 "in the schema\n", 0, 0, 0 );
 451                 } else {
 452                         /* No such field exists */
 453                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 454                 }
 455
 456                 SQLFreeStmt( sth, SQL_DROP );
 457         }
 458
 459         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 460                         bi->sql_oc_query, 0, 0 );
 461
 462         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 463         if ( rc != SQL_SUCCESS ) {
 464                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 465                         "error preparing oc_query: \"%s\"\n",
 466                         bi->sql_oc_query, 0, 0 );
 467                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 468                 return LDAP_OTHER;
 469         }
 470
 471         rc = SQLExecute( sth );
 472         if ( rc != SQL_SUCCESS ) {
 473                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 474                         "error executing oc_query: \n", 0, 0, 0 );
 475                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 476                 return LDAP_OTHER;
 477         }
 478
 479         backsql_BindRowAsStrings( sth, &oc_row );
 480         rc = SQLFetch( sth );
 481         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 482                 int     colnum;
 483
 484                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 485                                 sizeof( backsql_oc_map_rec ) );
 486
 487                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 488
 489                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 490                 if ( oc_map->bom_oc == NULL ) {
 491                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 492                                 "objectClass \"%s\" is not defined in schema\n",
 493                                 oc_row.cols[ 1 ], 0, 0 );
 494                         return LDAP_OTHER;      /* undefined objectClass ? */
 495                 }
 496
 497                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 498                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 499                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 500                         : ch_strdup( oc_row.cols[ 4 ] );
 501
 502                 colnum = 5;
 503                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 504                         colnum = 6;
 505                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 506                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 507                 }
 508                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 509                         : ch_strdup( oc_row.cols[ colnum ] );
 510                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 511                                 NULL, 0 );
 512
 513                 colnum += 2;
 514                 if ( ( oc_row.ncols > colnum ) &&
 515                                 ( oc_row.value_len[ colnum ] > 0 ) )
 516                 {
 517                         const char      *text;
 518
 519                         oc_map->bom_create_hint = NULL;
 520                         rc = slap_str2ad( oc_row.cols[ colnum ],
 521                                         &oc_map->bom_create_hint, &text );
 522                         if ( rc != SQL_SUCCESS ) {
 523                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 524                                                 "error matching "
 525                                                 "AttributeDescription %s "
 526                                                 "in create_hint: %s (%d)\n",
 527                                                 oc_row.cols[ colnum ],
 528                                                 text, rc );
 529                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 530                                                 sth, rc );
 531                                 return LDAP_OTHER;
 532                         }
 533                 }
 534
 535                 /*
 536                  * FIXME: first attempt to check for offending
 537                  * instructions in {create|delete}_proc
 538                  */
 539
 540                 oc_map->bom_attrs = NULL;
 541                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 542                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 543                                         "duplicate objectClass \"%s\" in objectClass map\n",
 544                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 545                         return LDAP_OTHER;
 546                 }
 547                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 548                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 549                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 550                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 551                         return LDAP_OTHER;
 552                 }
 553                 oc_id = oc_map->bom_id;
 554                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 555                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 556                         BACKSQL_OC_NAME( oc_map ),
 557                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 558                 if ( oc_map->bom_create_proc ) {
 559                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 560                                 oc_map->bom_create_proc, 0, 0 );
 561                 }
 562                 if ( oc_map->bom_create_keyval ) {
 563                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 564                                 oc_map->bom_create_keyval, 0, 0 );
 565                 }
 566                 if ( oc_map->bom_create_hint ) {
 567                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 568                                 oc_map->bom_create_hint->ad_cname.bv_val,
 569                                 0, 0 );
 570                 }
 571                 if ( oc_map->bom_delete_proc ) {
 572                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 573                                 oc_map->bom_delete_proc, 0, 0 );
 574                 }
 575                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 576                         "add=%d, del=%d; attributes:\n",
 577                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 578                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 579         }
 580
 581         backsql_FreeRow( &oc_row );
 582         SQLFreeStmt( sth, SQL_DROP );
 583
 584         /* prepare for attribute fetching */
 585         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 586                         bi->sql_at_query, 0, 0 );
 587
 588         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 589         if ( rc != SQL_SUCCESS ) {
 590                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 591                         "error preparing at_query: \"%s\"\n",
 592                         bi->sql_at_query, 0, 0 );
 593                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 594                 return LDAP_OTHER;
 595         }
 596
 597         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 598         if ( rc != SQL_SUCCESS ) {
 599                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 600                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 601                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 602                 SQLFreeStmt( sth, SQL_DROP );
 603                 return LDAP_OTHER;
 604         }
 605
 606         bas.bas_bi = bi;
 607         bas.bas_dbh = dbh;
 608         bas.bas_sth = sth;
 609         bas.bas_oc_id = &oc_id;
 610         bas.bas_rc = LDAP_SUCCESS;
 611
 612         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 613                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 614
 615         SQLFreeStmt( sth, SQL_DROP );
 616
 617         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 618
 619         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 620
 621         return bas.bas_rc;
 622 }
 623
 624 backsql_oc_map_rec *
 625 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 626 {
 627         backsql_oc_map_rec      tmp, *res;
 628
 629 #ifdef BACKSQL_TRACE
 630         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 631                 "searching for objectclass with name=\"%s\"\n",
 632                 oc->soc_cname.bv_val, 0, 0 );
 633 #endif /* BACKSQL_TRACE */
 634
 635         tmp.bom_oc = oc;
 636         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 637 #ifdef BACKSQL_TRACE
 638         if ( res != NULL ) {
 639                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 640                         "found name=\"%s\", id=%d\n",
 641                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 642         } else {
 643                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 644                         "not found\n", 0, 0, 0 );
 645         }
 646 #endif /* BACKSQL_TRACE */
 647
 648         return res;
 649 }
 650
 651 backsql_oc_map_rec *
 652 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 653 {
 654         backsql_oc_map_rec      tmp, *res;
 655
 656 #ifdef BACKSQL_TRACE
 657         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 658                 "searching for objectclass with name=\"%s\"\n",
 659                 oc_name->bv_val, 0, 0 );
 660 #endif /* BACKSQL_TRACE */
 661
 662         tmp.bom_oc = oc_bvfind( oc_name );
 663         if ( tmp.bom_oc == NULL ) {
 664                 return NULL;
 665         }
 666
 667         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 668 #ifdef BACKSQL_TRACE
 669         if ( res != NULL ) {
 670                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 671                         "found name=\"%s\", id=%d\n",
 672                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 673         } else {
 674                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 675                         "not found\n", 0, 0, 0 );
 676         }
 677 #endif /* BACKSQL_TRACE */
 678
 679         return res;
 680 }
 681
 682 backsql_oc_map_rec *
 683 backsql_id2oc( backsql_info *bi, unsigned long id )
 684 {
 685         backsql_oc_map_rec      tmp, *res;
 686
 687 #ifdef BACKSQL_TRACE
 688         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 689                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 690 #endif /* BACKSQL_TRACE */
 691
 692         tmp.bom_id = id;
 693         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 694                         backsql_cmp_oc_id );
 695
 696 #ifdef BACKSQL_TRACE
 697         if ( res != NULL ) {
 698                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 699                         "found name=\"%s\", id=%d\n",
 700                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 701         } else {
 702                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 703                         "not found\n", 0, 0, 0 );
 704         }
 705 #endif /* BACKSQL_TRACE */
 706
 707         return res;
 708 }
 709
 710 backsql_at_map_rec *
 711 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 712 {
 713         backsql_at_map_rec      tmp, *res;
 714
 715 #ifdef BACKSQL_TRACE
 716         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 717                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 718                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 719 #endif /* BACKSQL_TRACE */
 720
 721         tmp.bam_ad = ad;
 722         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 723                         backsql_cmp_attr );
 724
 725 #ifdef BACKSQL_TRACE
 726         if ( res != NULL ) {
 727                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 728                         "found name=\"%s\", sel_expr=\"%s\"\n",
 729                         res->bam_ad->ad_cname.bv_val,
 730                         res->bam_sel_expr.bv_val, 0 );
 731         } else {
 732                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 733                         "not found\n", 0, 0, 0 );
 734         }
 735 #endif /* BACKSQL_TRACE */
 736
 737         return res;
 738 }
 739
 740 /* attributeType inheritance */
 741 struct supad2at_t {
 742         backsql_at_map_rec      **ret;
 743         AttributeDescription    *ad;
 744         unsigned                n;
 745 };
 746
 747 #define SUPAD2AT_STOP   (-1)
 748
 749 static int
 750 supad2at_f( void *v_at, void *v_arg )
 751 {
 752         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 753         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 754
 755         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 756                 backsql_at_map_rec      **ret = NULL;
 757                 unsigned                i;
 758
 759                 /* if already listed, holler! (should never happen) */
 760                 if ( va->ret ) {
 761                         for ( i = 0; i < va->n; i++ ) {
 762                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 763                                         break;
 764                                 }
 765                         }
 766
 767                         if ( i < va->n ) {
 768                                 return 0;
 769                         }
 770                 }
 771
 772                 ret = ch_realloc( va->ret,
 773                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 774                 if ( ret == NULL ) {
 775                         ch_free( va->ret );
 776                         va->ret = NULL;
 777                         va->n = 0;
 778                         return SUPAD2AT_STOP;
 779                 }
 780
 781                 ret[ va->n ] = at;
 782                 va->n++;
 783                 ret[ va->n ] = NULL;
 784                 va->ret = ret;
 785         }
 786
 787         return 0;
 788 }
 789
 790 /*
 791  * stores in *pret a NULL terminated array of pointers
 792  * to backsql_at_map_rec whose attributeType is supad->ad_type
 793  * or derived from it
 794  */
 795 int
 796 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 797                 backsql_at_map_rec ***pret )
 798 {
 799         struct supad2at_t       va = { 0 };
 800         int                     rc;
 801
 802         assert( objclass );
 803         assert( supad );
 804         assert( pret );
 805
 806         *pret = NULL;
 807
 808         va.ad = supad;
 809
 810         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 811                         SUPAD2AT_STOP, AVL_INORDER );
 812         if ( rc == SUPAD2AT_STOP ) {
 813                 return -1;
 814         }
 815
 816         *pret = va.ret;
 817
 818         return 0;
 819 }
 820
 821 static void
 822 backsql_free_attr( void *v_at )
 823 {
 824         backsql_at_map_rec      *at = v_at;
 825
 826         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 827                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 828         ch_free( at->bam_sel_expr.bv_val );
 829         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 830                 ch_free( at->bam_from_tbls.bv_val );
 831         }
 832         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 833                 ch_free( at->bam_join_where.bv_val );
 834         }
 835         if ( at->bam_add_proc != NULL ) {
 836                 ch_free( at->bam_add_proc );
 837         }
 838         if ( at->bam_delete_proc != NULL ) {
 839                 ch_free( at->bam_delete_proc );
 840         }
 841         if ( at->bam_query != NULL ) {
 842                 ch_free( at->bam_query );
 843         }
 844
 845         /* TimesTen */
 846         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 847                 ch_free( at->bam_sel_expr_u.bv_val );
 848         }
 849
 850         if ( at->bam_next ) {
 851                 backsql_free_attr( at->bam_next );
 852         }
 853
 854         ch_free( at );
 855
 856         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 857 }
 858
 859 static void
 860 backsql_free_oc( void *v_oc )
 861 {
 862         backsql_oc_map_rec      *oc = v_oc;
 863
 864         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 865                         BACKSQL_OC_NAME( oc ), 0, 0 );
 866         avl_free( oc->bom_attrs, backsql_free_attr );
 867         ch_free( oc->bom_keytbl.bv_val );
 868         ch_free( oc->bom_keycol.bv_val );
 869         if ( oc->bom_create_proc != NULL ) {
 870                 ch_free( oc->bom_create_proc );
 871         }
 872         if ( oc->bom_create_keyval != NULL ) {
 873                 ch_free( oc->bom_create_keyval );
 874         }
 875         if ( oc->bom_delete_proc != NULL ) {
 876                 ch_free( oc->bom_delete_proc );
 877         }
 878         ch_free( oc );
 879
 880         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 881 }
 882
 883 int
 884 backsql_destroy_schema_map( backsql_info *bi )
 885 {
 886         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 887         avl_free( bi->sql_oc_by_oc, 0 );
 888         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 889         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 890         return 0;
 891 }
 892