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 /* NOTE: by default, cannot just compare pointers because
  37  * objectClass/attributeType order would be machine-dependent
  38  * (and tests would fail!); however, if you don't want to run
  39  * tests, or see attributeTypes written in the same order
  40  * they are defined, define */
  41 /* #undef BACKSQL_USE_PTR_CMP */
  42
  43 /*
  44  * Uses the pointer to the ObjectClass structure
  45  */
  46 static int
  47 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  48 {
  49         const backsql_oc_map_rec        *m1 = v_m1,
  50                                         *m2 = v_m2;
  51
  52 #ifdef BACKSQL_USE_PTR_CMP
  53         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  54 #else /* ! BACKSQL_USE_PTR_CMP */
  55         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  56 #endif /* ! BACKSQL_USE_PTR_CMP */
  57 }
  58
  59 static int
  60 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  61 {
  62         const backsql_oc_map_rec        *m1 = v_m1,
  63                                         *m2 = v_m2;
  64
  65         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  66 }
  67
  68 /*
  69  * Uses the pointer to the AttributeDescription structure
  70  */
  71 static int
  72 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  73 {
  74         const backsql_at_map_rec        *m1 = v_m1,
  75                                         *m2 = v_m2;
  76
  77 #ifdef BACKSQL_USE_PTR_CMP
  78         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  79 #else /* ! BACKSQL_USE_PTR_CMP */
  80         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  81 #endif /* ! BACKSQL_USE_PTR_CMP */
  82 }
  83
  84 int
  85 backsql_dup_attr( void *v_m1, void *v_m2 )
  86 {
  87         backsql_at_map_rec              *m1 = v_m1,
  88                                         *m2 = v_m2;
  89
  90         assert( m1->bam_ad == m2->bam_ad );
  91
  92         /* duplicate definitions of attributeTypes are appended;
  93          * this allows to define multiple rules for the same
  94          * attributeType.  Use with care! */
  95         for ( ; m1->bam_next ; m1 = m1->bam_next );
  96         m1->bam_next = m2;
  97         m2->bam_next = NULL;
  98
  99         return BACKSQL_DUPLICATE;
 100 }
 101
 102 static int
 103 backsql_make_attr_query(
 104         backsql_oc_map_rec      *oc_map,
 105         backsql_at_map_rec      *at_map )
 106 {
 107         struct berbuf   bb = BB_NULL;
 108
 109         backsql_strfcat( &bb, "lblblblbcbl",
 110                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 111                         &at_map->bam_sel_expr,
 112                         (ber_len_t)STRLENOF( " AS " ), " AS ",
 113                         &at_map->bam_ad->ad_cname,
 114                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 115                         &at_map->bam_from_tbls,
 116                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 117                         &oc_map->bom_keytbl,
 118                         '.',
 119                         &oc_map->bom_keycol,
 120                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 121
 122         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 123                 backsql_strfcat( &bb, "lb",
 124                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 125                                 &at_map->bam_join_where );
 126         }
 127
 128         at_map->bam_query = bb.bb_val.bv_val;
 129
 130         return 0;
 131 }
 132
 133 static int
 134 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 135 {
 136         backsql_at_map_rec      *at_map;
 137         char                    s[] = "+9223372036854775807L";
 138         struct berval           sbv;
 139         struct berbuf           bb;
 140
 141         sbv.bv_val = s;
 142         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 143         sbv.bv_len = strlen( s );
 144
 145         /* extra objectClasses */
 146         at_map = (backsql_at_map_rec *)ch_calloc(1,
 147                         sizeof( backsql_at_map_rec ) );
 148         at_map->bam_ad = slap_schema.si_ad_objectClass;
 149         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 150                         &at_map->bam_sel_expr );
 151         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 152                         &at_map->bam_from_tbls );
 153
 154         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 155         bb.bb_val = at_map->bam_from_tbls;
 156         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 157         at_map->bam_from_tbls = bb.bb_val;
 158
 159         BER_BVZERO( &bb.bb_val );
 160         bb.bb_len = 0;
 161         backsql_strfcat( &bb, "lbcblb",
 162                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 163                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 164                         &oc_map->bom_keytbl,
 165                         '.',
 166                         &oc_map->bom_keycol,
 167                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 168                                 " and ldap_entries.oc_map_id=",
 169                         &sbv );
 170         at_map->bam_join_where = bb.bb_val;
 171
 172         at_map->bam_oc = oc_map->bom_oc;
 173
 174         at_map->bam_add_proc = NULL;
 175         {
 176                 char    tmp[] =
 177                         "INSERT INTO ldap_entry_objclasses "
 178                         "(entry_id,oc_name) VALUES "
 179                         "((SELECT id FROM ldap_entries "
 180                         "WHERE oc_map_id="
 181                         "18446744073709551615UL "       /* 64 bit ULONG */
 182                         "AND keyval=?),?)";
 183                 snprintf( tmp, sizeof(tmp),
 184                         "INSERT INTO ldap_entry_objclasses "
 185                         "(entry_id,oc_name) VALUES "
 186                         "((SELECT id FROM ldap_entries "
 187                         "WHERE oc_map_id=%lu "
 188                         "AND keyval=?),?)", oc_map->bom_id );
 189                 at_map->bam_add_proc = ch_strdup( tmp );
 190         }
 191
 192         at_map->bam_delete_proc = NULL;
 193         {
 194                 char    tmp[] =
 195                         "DELETE FROM ldap_entry_objclasses "
 196                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 197                         "WHERE oc_map_id="
 198                         "18446744073709551615UL "       /* 64 bit ULONG */
 199                         "AND keyval=?) AND oc_name=?";
 200                 snprintf( tmp, sizeof(tmp),
 201                         "DELETE FROM ldap_entry_objclasses "
 202                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 203                         "WHERE oc_map_id=%lu"
 204                         "AND keyval=?) AND oc_name=?",
 205                         oc_map->bom_id );
 206                 at_map->bam_delete_proc = ch_strdup( tmp );
 207         }
 208
 209         at_map->bam_param_order = 0;
 210         at_map->bam_expect_return = 0;
 211         at_map->bam_next = NULL;
 212
 213         backsql_make_attr_query( oc_map, at_map );
 214         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 215                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 216                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 217                                 at_map->bam_ad->ad_cname.bv_val,
 218                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 219         }
 220
 221         /* FIXME: whe need to correct the objectClass join_where
 222          * after the attribute query is built */
 223         ch_free( at_map->bam_join_where.bv_val );
 224         BER_BVZERO( &bb.bb_val );
 225         bb.bb_len = 0;
 226         backsql_strfcat( &bb, "lbcblb",
 227                         (ber_len_t)STRLENOF( "ldap_entries.keyval=" ),
 228                                 "ldap_entries.keyval=",
 229                         &oc_map->bom_keytbl,
 230                         '.',
 231                         &oc_map->bom_keycol,
 232                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 233                                 " AND ldap_entries.oc_map_id=",
 234                         &sbv );
 235         at_map->bam_join_where = bb.bb_val;
 236
 237         /* referral attribute */
 238         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 239                         sizeof( backsql_at_map_rec ) );
 240         at_map->bam_ad = slap_schema.si_ad_ref;
 241         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 242         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 243
 244         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 245         bb.bb_val = at_map->bam_from_tbls;
 246         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 247         at_map->bam_from_tbls = bb.bb_val;
 248
 249         BER_BVZERO( &bb.bb_val );
 250         bb.bb_len = 0;
 251         backsql_strfcat( &bb, "lbcblb",
 252                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=" ),
 253                                 "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=",
 254                         &oc_map->bom_keytbl,
 255                         '.',
 256                         &oc_map->bom_keycol,
 257                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 258                                 " AND ldap_entries.oc_map_id=",
 259                         &sbv );
 260
 261         at_map->bam_join_where = bb.bb_val;
 262
 263         at_map->bam_oc = NULL;
 264
 265         at_map->bam_add_proc = NULL;
 266         {
 267                 char    tmp[] =
 268                         "INSERT INTO ldap_referrals "
 269                         "(entry_id,url) VALUES "
 270                         "((SELECT id FROM ldap_entries "
 271                         "WHERE oc_map_id="
 272                         "18446744073709551615UL "       /* 64 bit ULONG */
 273                         "AND keyval=?),?)";
 274                 snprintf( tmp, sizeof(tmp),
 275                         "INSERT INTO ldap_referrals "
 276                         "(entry_id,url) VALUES "
 277                         "((SELECT id FROM ldap_entries "
 278                         "WHERE oc_map_id=%lu "
 279                         "AND keyval=?),?)", oc_map->bom_id );
 280                 at_map->bam_add_proc = ch_strdup( tmp );
 281         }
 282
 283         at_map->bam_delete_proc = NULL;
 284         {
 285                 char    tmp[] =
 286                         "DELETE FROM ldap_referrals "
 287                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 288                         "WHERE oc_map_id="
 289                         "18446744073709551615UL "       /* 64 bit ULONG */
 290                         "AND keyval=?) and url=?";
 291                 snprintf( tmp, sizeof(tmp),
 292                         "DELETE FROM ldap_referrals "
 293                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 294                         "WHERE oc_map_id=%lu"
 295                         "AND keyval=?) and url=?",
 296                         oc_map->bom_id );
 297                 at_map->bam_delete_proc = ch_strdup( tmp );
 298         }
 299
 300         at_map->bam_param_order = 0;
 301         at_map->bam_expect_return = 0;
 302         at_map->bam_next = NULL;
 303
 304         backsql_make_attr_query( oc_map, at_map );
 305         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 306                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 307                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 308                                 at_map->bam_ad->ad_cname.bv_val,
 309                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 310         }
 311
 312         return 1;
 313 }
 314
 315 struct backsql_attr_schema_info {
 316         backsql_info    *bas_si;
 317         SQLHDBC         bas_dbh;
 318         SQLHSTMT        bas_sth;
 319         unsigned long   *bas_oc_id;
 320         int             bas_rc;
 321 };
 322
 323 static int
 324 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 325 {
 326         RETCODE                         rc;
 327         BACKSQL_ROW_NTS                 at_row;
 328         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 329         backsql_at_map_rec              *at_map;
 330         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 331
 332         /* bas->bas_oc_id has been bound to bas->bas_sth */
 333         *bas->bas_oc_id = oc_map->bom_id;
 334
 335         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 336                 "executing at_query\n"
 337                 "    \"%s\"\n"
 338                 "    for objectClass \"%s\"\n"
 339                 "    with param oc_id=\"%lu\"\n",
 340                 bas->bas_si->at_query,
 341                 BACKSQL_OC_NAME( oc_map ),
 342                 *bas->bas_oc_id );
 343
 344         rc = SQLExecute( bas->bas_sth );
 345         if ( rc != SQL_SUCCESS ) {
 346                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 347                         "error executing at_query\n"
 348                         "    \"%s\"\n"
 349                         "    for objectClass \"%s\"\n"
 350                         "    with param oc_id=\"%lu\"\n",
 351                         bas->bas_si->at_query,
 352                         BACKSQL_OC_NAME( oc_map ),
 353                         *bas->bas_oc_id );
 354                 backsql_PrintErrors( SQL_NULL_HENV, bas->bas_dbh, bas->bas_sth, rc );
 355                 bas->bas_rc = LDAP_OTHER;
 356                 return BACKSQL_AVL_STOP;
 357         }
 358
 359         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 360         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 361                 const char      *text = NULL;
 362                 struct berval   bv;
 363                 struct berbuf   bb = BB_NULL;
 364
 365                 Debug( LDAP_DEBUG_TRACE,
 366                         "attributeType:\n"
 367                         "\tname=\"%s\"\n"
 368                         "\tsel_expr=\"%s\"\n"
 369                         "\tfrom=\"%s\"\n",
 370                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 371                         at_row.cols[ 2 ] );
 372                 Debug( LDAP_DEBUG_TRACE,
 373                         "\tjoin_where=\"%s\"\n"
 374                         "\tadd_proc=\"%s\"\n"
 375                         "\tdelete_proc=\"%s\"\n",
 376                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 377                         at_row.cols[ 5 ]);
 378                 /* TimesTen */
 379                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 380                                 at_row.cols[ 8 ], 0, 0 );
 381                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 382                                 sizeof( backsql_at_map_rec ) );
 383                 rc = slap_str2ad( at_row.cols[ 0 ],
 384                                 &at_map->bam_ad, &text );
 385                 if ( rc != LDAP_SUCCESS ) {
 386                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 387                                 "attribute \"%s\" for objectClass \"%s\" "
 388                                 "is not defined in schema: %s\n",
 389                                 at_row.cols[ 0 ],
 390                                 BACKSQL_OC_NAME( oc_map ), text );
 391                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 392                         return BACKSQL_AVL_STOP;
 393                 }
 394
 395                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 396                 if ( at_row.value_len[ 8 ] < 0 ) {
 397                         BER_BVZERO( &at_map->bam_sel_expr_u );
 398
 399                 } else {
 400                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 401                                         &at_map->bam_sel_expr_u );
 402                 }
 403
 404                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 405                 backsql_merge_from_clause( &bb, &bv );
 406                 at_map->bam_from_tbls = bb.bb_val;
 407                 if ( at_row.value_len[ 3 ] < 0 ) {
 408                         BER_BVZERO( &at_map->bam_join_where );
 409
 410                 } else {
 411                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 412                                         &at_map->bam_join_where );
 413                 }
 414                 at_map->bam_add_proc = NULL;
 415                 if ( at_row.value_len[ 4 ] > 0 ) {
 416                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 417                 }
 418                 at_map->bam_delete_proc = NULL;
 419                 if ( at_row.value_len[ 5 ] > 0 ) {
 420                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 421                 }
 422                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 423                                 NULL, 0 );
 424                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 425                                 NULL, 0 );
 426                 backsql_make_attr_query( oc_map, at_map );
 427                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 428                         "preconstructed query \"%s\"\n",
 429                         at_map->bam_query, 0, 0 );
 430                 at_map->bam_next = NULL;
 431                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 432                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 433                                         "duplicate attribute \"%s\" "
 434                                         "in objectClass \"%s\" map\n",
 435                                         at_map->bam_ad->ad_cname.bv_val,
 436                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 437                 }
 438
 439                 if ( !BER_BVISNULL( &bas->bas_si->upper_func ) &&
 440                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 441                 {
 442                         struct berbuf   bb = BB_NULL;
 443
 444                         backsql_strfcat( &bb, "bcbc",
 445                                         &bas->bas_si->upper_func,
 446                                         '(' /* ) */ ,
 447                                         &at_map->bam_sel_expr,
 448                                         /* ( */ ')' );
 449                         at_map->bam_sel_expr_u = bb.bb_val;
 450                 }
 451         }
 452         backsql_FreeRow( &at_row );
 453         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 454
 455         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 456                 "autoadding 'objectClass' and 'ref' mappings\n",
 457                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 458
 459         (void)backsql_add_sysmaps( oc_map );
 460
 461         return BACKSQL_AVL_CONTINUE;
 462 }
 463
 464
 465 int
 466 backsql_load_schema_map( backsql_info *si, SQLHDBC dbh )
 467 {
 468         SQLHSTMT                        sth;
 469         RETCODE                         rc;
 470         BACKSQL_ROW_NTS                 oc_row;
 471         unsigned long                   oc_id;
 472         backsql_oc_map_rec              *oc_map;
 473         struct backsql_attr_schema_info bas;
 474
 475         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 476
 477         /*
 478          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 479          */
 480         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( si ) ) {
 481                 rc = backsql_Prepare( dbh, &sth,
 482                                 backsql_check_dn_ru_query, 0 );
 483                 if ( rc == SQL_SUCCESS ) {
 484                         /* Yes, the field exists */
 485                         si->bsql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 486                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 487                                 "in the schema\n", 0, 0, 0 );
 488                 } else {
 489                         /* No such field exists */
 490                         si->bsql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 491                 }
 492
 493                 SQLFreeStmt( sth, SQL_DROP );
 494         }
 495
 496         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 497                         si->oc_query, 0, 0 );
 498
 499         rc = backsql_Prepare( dbh, &sth, si->oc_query, 0 );
 500         if ( rc != SQL_SUCCESS ) {
 501                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 502                         "error preparing oc_query: \"%s\"\n",
 503                         si->oc_query, 0, 0 );
 504                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 505                 return LDAP_OTHER;
 506         }
 507
 508         rc = SQLExecute( sth );
 509         if ( rc != SQL_SUCCESS ) {
 510                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 511                         "error executing oc_query: \n", 0, 0, 0 );
 512                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 513                 return LDAP_OTHER;
 514         }
 515
 516         backsql_BindRowAsStrings( sth, &oc_row );
 517         rc = SQLFetch( sth );
 518         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 519                 int     colnum;
 520
 521                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 522                                 sizeof( backsql_oc_map_rec ) );
 523
 524                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 525
 526                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 527                 if ( oc_map->bom_oc == NULL ) {
 528                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 529                                 "objectClass \"%s\" is not defined in schema\n",
 530                                 oc_row.cols[ 1 ], 0, 0 );
 531                         return LDAP_OTHER;      /* undefined objectClass ? */
 532                 }
 533
 534                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 535                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 536                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 537                         : ch_strdup( oc_row.cols[ 4 ] );
 538
 539                 colnum = 5;
 540                 if ( BACKSQL_CREATE_NEEDS_SELECT( si ) ) {
 541                         colnum = 6;
 542                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 543                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 544                 }
 545                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 546                         : ch_strdup( oc_row.cols[ colnum ] );
 547                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 548                                 NULL, 0 );
 549
 550                 /*
 551                  * FIXME: first attempt to check for offending
 552                  * instructions in {create|delete}_proc
 553                  */
 554
 555                 oc_map->bom_attrs = NULL;
 556                 if ( avl_insert( &si->oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 557                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 558                                         "duplicate objectClass \"%s\" in objectClass map\n",
 559                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 560                         return LDAP_OTHER;
 561                 }
 562                 if ( avl_insert( &si->oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 563                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 564                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 565                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 566                         return LDAP_OTHER;
 567                 }
 568                 oc_id = oc_map->bom_id;
 569                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 570                         "objectClass \"%s\": keytbl=\"%s\" keycol=\"%s\"\n",
 571                         BACKSQL_OC_NAME( oc_map ),
 572                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 573                 if ( oc_map->bom_create_proc ) {
 574                         Debug( LDAP_DEBUG_TRACE, "create_proc=\"%s\"\n",
 575                                 oc_map->bom_create_proc, 0, 0 );
 576                 }
 577                 if ( oc_map->bom_create_keyval ) {
 578                         Debug( LDAP_DEBUG_TRACE, "create_keyval=\"%s\"\n",
 579                                 oc_map->bom_create_keyval, 0, 0 );
 580                 }
 581                 if ( oc_map->bom_delete_proc ) {
 582                         Debug( LDAP_DEBUG_TRACE, "delete_proc=\"%s\"\n",
 583                                 oc_map->bom_delete_proc, 0, 0 );
 584                 }
 585                 Debug( LDAP_DEBUG_TRACE, "expect_return: "
 586                         "add=%d, del=%d; attributes:\n",
 587                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 588                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 589         }
 590
 591         backsql_FreeRow( &oc_row );
 592         SQLFreeStmt( sth, SQL_DROP );
 593
 594         /* prepare for attribute fetching */
 595         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 596                         si->at_query, 0, 0 );
 597
 598         rc = backsql_Prepare( dbh, &sth, si->at_query, 0 );
 599         if ( rc != SQL_SUCCESS ) {
 600                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 601                         "error preparing at_query: \"%s\"\n",
 602                         si->at_query, 0, 0 );
 603                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 604                 return LDAP_OTHER;
 605         }
 606
 607         rc = backsql_BindParamID( sth, 1, &oc_id );
 608         if ( rc != SQL_SUCCESS ) {
 609                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 610                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 611                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 612                 return LDAP_OTHER;
 613         }
 614
 615         bas.bas_si = si;
 616         bas.bas_dbh = dbh;
 617         bas.bas_sth = sth;
 618         bas.bas_oc_id = &oc_id;
 619         bas.bas_rc = LDAP_SUCCESS;
 620
 621         (void)avl_apply( si->oc_by_oc, backsql_oc_get_attr_mapping,
 622                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 623
 624         SQLFreeStmt( sth, SQL_DROP );
 625
 626         si->bsql_flags |= BSQLF_SCHEMA_LOADED;
 627
 628         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 629
 630         return bas.bas_rc;
 631 }
 632
 633 backsql_oc_map_rec *
 634 backsql_oc2oc( backsql_info *si, ObjectClass *oc )
 635 {
 636         backsql_oc_map_rec      tmp, *res;
 637
 638 #ifdef BACKSQL_TRACE
 639         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 640                 "searching for objectclass with name=\"%s\"\n",
 641                 oc->soc_cname.bv_val, 0, 0 );
 642 #endif /* BACKSQL_TRACE */
 643
 644         tmp.bom_oc = oc;
 645         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 646 #ifdef BACKSQL_TRACE
 647         if ( res != NULL ) {
 648                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 649                         "found name=\"%s\", id=%d\n",
 650                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 651         } else {
 652                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 653                         "not found\n", 0, 0, 0 );
 654         }
 655 #endif /* BACKSQL_TRACE */
 656
 657         return res;
 658 }
 659
 660 backsql_oc_map_rec *
 661 backsql_name2oc( backsql_info *si, struct berval *oc_name )
 662 {
 663         backsql_oc_map_rec      tmp, *res;
 664
 665 #ifdef BACKSQL_TRACE
 666         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 667                 "searching for objectclass with name=\"%s\"\n",
 668                 oc_name->bv_val, 0, 0 );
 669 #endif /* BACKSQL_TRACE */
 670
 671         tmp.bom_oc = oc_bvfind( oc_name );
 672         if ( tmp.bom_oc == NULL ) {
 673                 return NULL;
 674         }
 675
 676         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 677 #ifdef BACKSQL_TRACE
 678         if ( res != NULL ) {
 679                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 680                         "found name=\"%s\", id=%d\n",
 681                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 682         } else {
 683                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 684                         "not found\n", 0, 0, 0 );
 685         }
 686 #endif /* BACKSQL_TRACE */
 687
 688         return res;
 689 }
 690
 691 backsql_oc_map_rec *
 692 backsql_id2oc( backsql_info *si, unsigned long id )
 693 {
 694         backsql_oc_map_rec      tmp, *res;
 695
 696 #ifdef BACKSQL_TRACE
 697         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 698                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 699 #endif /* BACKSQL_TRACE */
 700
 701         tmp.bom_id = id;
 702         res = (backsql_oc_map_rec *)avl_find( si->oc_by_id, &tmp,
 703                         backsql_cmp_oc_id );
 704
 705 #ifdef BACKSQL_TRACE
 706         if ( res != NULL ) {
 707                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 708                         "found name=\"%s\", id=%d\n",
 709                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 710         } else {
 711                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 712                         "not found\n", 0, 0, 0 );
 713         }
 714 #endif /* BACKSQL_TRACE */
 715
 716         return res;
 717 }
 718
 719 backsql_at_map_rec *
 720 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 721 {
 722         backsql_at_map_rec      tmp, *res;
 723
 724 #ifdef BACKSQL_TRACE
 725         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 726                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 727                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 728 #endif /* BACKSQL_TRACE */
 729
 730         tmp.bam_ad = ad;
 731         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 732                         backsql_cmp_attr );
 733
 734 #ifdef BACKSQL_TRACE
 735         if ( res != NULL ) {
 736                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 737                         "found name=\"%s\", sel_expr=\"%s\"\n",
 738                         res->bam_ad->ad_cname.bv_val,
 739                         res->bam_sel_expr.bv_val, 0 );
 740         } else {
 741                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 742                         "not found\n", 0, 0, 0 );
 743         }
 744 #endif /* BACKSQL_TRACE */
 745
 746         return res;
 747 }
 748
 749 /* attributeType inheritance */
 750 struct supad2at_t {
 751         backsql_at_map_rec      **ret;
 752         AttributeDescription    *ad;
 753         unsigned                n;
 754 };
 755
 756 #define SUPAD2AT_STOP   (-1)
 757
 758 static int
 759 supad2at_f( void *v_at, void *v_arg )
 760 {
 761         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 762         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 763
 764         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 765                 backsql_at_map_rec      **ret;
 766                 unsigned                i;
 767
 768                 /* if already listed, holler! (should never happen) */
 769                 if ( va->ret ) {
 770                         for ( i = 0; i < va->n; i++ ) {
 771                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 772                                         break;
 773                                 }
 774                         }
 775
 776                         if ( i < va->n ) {
 777                                 return 0;
 778                         }
 779                 }
 780
 781                 ret = ch_realloc( va->ret,
 782                                 sizeof( backsql_at_map_rec *) * ( va->n + 2 ) );
 783                 if ( ret == NULL ) {
 784                         ch_free( va->ret );
 785                         return SUPAD2AT_STOP;
 786                 }
 787
 788                 ret[ va->n ] = at;
 789                 va->n++;
 790                 ret[ va->n ] = NULL;
 791                 va->ret = ret;
 792         }
 793
 794         return 0;
 795 }
 796
 797 /*
 798  * stores in *pret a NULL terminated array of pointers
 799  * to backsql_at_map_rec whose attributeType is supad->ad_type
 800  * or derived from it
 801  */
 802 int
 803 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 804                 backsql_at_map_rec ***pret )
 805 {
 806         struct supad2at_t       va;
 807         int                     rc;
 808
 809         assert( objclass );
 810         assert( supad );
 811         assert( pret );
 812
 813         *pret = NULL;
 814
 815         va.ret = NULL;
 816         va.ad = supad;
 817         va.n = 0;
 818
 819         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 820                         SUPAD2AT_STOP, AVL_INORDER );
 821         if ( rc == SUPAD2AT_STOP ) {
 822                 return -1;
 823         }
 824
 825         *pret = va.ret;
 826
 827         return 0;
 828 }
 829
 830 static void
 831 backsql_free_attr( void *v_at )
 832 {
 833         backsql_at_map_rec      *at = v_at;
 834
 835         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 836                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 837         ch_free( at->bam_sel_expr.bv_val );
 838         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 839                 ch_free( at->bam_from_tbls.bv_val );
 840         }
 841         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 842                 ch_free( at->bam_join_where.bv_val );
 843         }
 844         if ( at->bam_add_proc != NULL ) {
 845                 ch_free( at->bam_add_proc );
 846         }
 847         if ( at->bam_delete_proc != NULL ) {
 848                 ch_free( at->bam_delete_proc );
 849         }
 850         if ( at->bam_query ) {
 851                 ch_free( at->bam_query );
 852         }
 853
 854         /* TimesTen */
 855         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 856                 ch_free( at->bam_sel_expr_u.bv_val );
 857         }
 858
 859         if ( at->bam_next ) {
 860                 backsql_free_attr( at->bam_next );
 861         }
 862
 863         ch_free( at );
 864
 865         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 866 }
 867
 868 static void
 869 backsql_free_oc( void *v_oc )
 870 {
 871         backsql_oc_map_rec      *oc = v_oc;
 872
 873         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 874                         BACKSQL_OC_NAME( oc ), 0, 0 );
 875         avl_free( oc->bom_attrs, backsql_free_attr );
 876         ch_free( oc->bom_keytbl.bv_val );
 877         ch_free( oc->bom_keycol.bv_val );
 878         if ( oc->bom_create_proc != NULL ) {
 879                 ch_free( oc->bom_create_proc );
 880         }
 881         if ( oc->bom_create_keyval != NULL ) {
 882                 ch_free( oc->bom_create_keyval );
 883         }
 884         if ( oc->bom_delete_proc != NULL ) {
 885                 ch_free( oc->bom_delete_proc );
 886         }
 887         ch_free( oc );
 888
 889         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 890 }
 891
 892 int
 893 backsql_destroy_schema_map( backsql_info *si )
 894 {
 895         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 896         avl_free( si->oc_by_oc, 0 );
 897         avl_free( si->oc_by_id, backsql_free_oc );
 898         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 899         return 0;
 900 }
 901
 902 #endif /* SLAPD_SQL */
 903