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 #ifdef BACKSQL_ALIASING_QUOTE
 110         backsql_strfcat( &bb, "lblcbclblbcbl",
 111                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 112                         &at_map->bam_sel_expr,
 113                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 114                         BACKSQL_ALIASING_QUOTE,
 115                         &at_map->bam_ad->ad_cname,
 116                         BACKSQL_ALIASING_QUOTE,
 117                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 118                         &at_map->bam_from_tbls,
 119                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 120                         &oc_map->bom_keytbl,
 121                         '.',
 122                         &oc_map->bom_keycol,
 123                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 124 #else /* ! BACKSQL_ALIASING_QUOTE */
 125         backsql_strfcat( &bb, "lblblblbcbl",
 126                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 127                         &at_map->bam_sel_expr,
 128                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 129                         &at_map->bam_ad->ad_cname,
 130                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 131                         &at_map->bam_from_tbls,
 132                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 133                         &oc_map->bom_keytbl,
 134                         '.',
 135                         &oc_map->bom_keycol,
 136                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 137 #endif /* ! BACKSQL_ALIASING_QUOTE */
 138
 139         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 140                 backsql_strfcat( &bb, "lb",
 141                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 142                                 &at_map->bam_join_where );
 143         }
 144
 145 #ifdef BACKSQL_ALIASING_QUOTE
 146         backsql_strfcat( &bb, "lcbc",
 147                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 148                         BACKSQL_ALIASING_QUOTE,
 149                         &at_map->bam_sel_expr,
 150                         BACKSQL_ALIASING_QUOTE );
 151 #else /* ! BACKSQL_ALIASING_QUOTE */
 152         backsql_strfcat( &bb, "lb",
 153                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 154                         &at_map->bam_sel_expr );
 155 #endif /* ! BACKSQL_ALIASING_QUOTE */
 156
 157         at_map->bam_query = bb.bb_val.bv_val;
 158
 159         return 0;
 160 }
 161
 162 static int
 163 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 164 {
 165         backsql_at_map_rec      *at_map;
 166         char                    s[] = "+9223372036854775807L";
 167         struct berval           sbv;
 168         struct berbuf           bb;
 169
 170         sbv.bv_val = s;
 171         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 172         sbv.bv_len = strlen( s );
 173
 174         /* extra objectClasses */
 175         at_map = (backsql_at_map_rec *)ch_calloc(1,
 176                         sizeof( backsql_at_map_rec ) );
 177         at_map->bam_ad = slap_schema.si_ad_objectClass;
 178         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 179                         &at_map->bam_sel_expr );
 180         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 181                         &at_map->bam_from_tbls );
 182
 183         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 184         bb.bb_val = at_map->bam_from_tbls;
 185         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 186         at_map->bam_from_tbls = bb.bb_val;
 187
 188         BER_BVZERO( &bb.bb_val );
 189         bb.bb_len = 0;
 190         backsql_strfcat( &bb, "lbcblb",
 191                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 192                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 193                         &oc_map->bom_keytbl,
 194                         '.',
 195                         &oc_map->bom_keycol,
 196                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 197                                 " and ldap_entries.oc_map_id=",
 198                         &sbv );
 199         at_map->bam_join_where = bb.bb_val;
 200
 201         at_map->bam_oc = oc_map->bom_oc;
 202
 203         at_map->bam_add_proc = NULL;
 204         {
 205                 char    tmp[] =
 206                         "INSERT INTO ldap_entry_objclasses "
 207                         "(entry_id,oc_name) VALUES "
 208                         "((SELECT id FROM ldap_entries "
 209                         "WHERE oc_map_id="
 210                         "18446744073709551615UL "       /* 64 bit ULONG */
 211                         "AND keyval=?),?)";
 212                 snprintf( tmp, sizeof(tmp),
 213                         "INSERT INTO ldap_entry_objclasses "
 214                         "(entry_id,oc_name) VALUES "
 215                         "((SELECT id FROM ldap_entries "
 216                         "WHERE oc_map_id=%lu "
 217                         "AND keyval=?),?)", oc_map->bom_id );
 218                 at_map->bam_add_proc = ch_strdup( tmp );
 219         }
 220
 221         at_map->bam_delete_proc = NULL;
 222         {
 223                 char    tmp[] =
 224                         "DELETE FROM ldap_entry_objclasses "
 225                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 226                         "WHERE oc_map_id="
 227                         "18446744073709551615UL "       /* 64 bit ULONG */
 228                         "AND keyval=?) AND oc_name=?";
 229                 snprintf( tmp, sizeof(tmp),
 230                         "DELETE FROM ldap_entry_objclasses "
 231                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 232                         "WHERE oc_map_id=%lu"
 233                         "AND keyval=?) AND oc_name=?",
 234                         oc_map->bom_id );
 235                 at_map->bam_delete_proc = ch_strdup( tmp );
 236         }
 237
 238         at_map->bam_param_order = 0;
 239         at_map->bam_expect_return = 0;
 240         at_map->bam_next = NULL;
 241
 242         backsql_make_attr_query( oc_map, at_map );
 243         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 244                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 245                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 246                                 at_map->bam_ad->ad_cname.bv_val,
 247                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 248         }
 249
 250         /* FIXME: we need to correct the objectClass join_where
 251          * after the attribute query is built */
 252         ch_free( at_map->bam_join_where.bv_val );
 253         BER_BVZERO( &bb.bb_val );
 254         bb.bb_len = 0;
 255         backsql_strfcat( &bb, "lbcblb",
 256                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 257                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 258                         &oc_map->bom_keytbl,
 259                         '.',
 260                         &oc_map->bom_keycol,
 261                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 262                                 " AND ldap_entries.oc_map_id=",
 263                         &sbv );
 264         at_map->bam_join_where = bb.bb_val;
 265
 266         /* referral attribute */
 267         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 268                         sizeof( backsql_at_map_rec ) );
 269         at_map->bam_ad = slap_schema.si_ad_ref;
 270         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 271         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 272
 273         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 274         bb.bb_val = at_map->bam_from_tbls;
 275         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 276         at_map->bam_from_tbls = bb.bb_val;
 277
 278         BER_BVZERO( &bb.bb_val );
 279         bb.bb_len = 0;
 280         backsql_strfcat( &bb, "lbcblb",
 281                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=" ),
 282                                 "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=",
 283                         &oc_map->bom_keytbl,
 284                         '.',
 285                         &oc_map->bom_keycol,
 286                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 287                                 " AND ldap_entries.oc_map_id=",
 288                         &sbv );
 289
 290         at_map->bam_join_where = bb.bb_val;
 291
 292         at_map->bam_oc = NULL;
 293
 294         at_map->bam_add_proc = NULL;
 295         {
 296                 char    tmp[] =
 297                         "INSERT INTO ldap_referrals "
 298                         "(entry_id,url) VALUES "
 299                         "((SELECT id FROM ldap_entries "
 300                         "WHERE oc_map_id="
 301                         "18446744073709551615UL "       /* 64 bit ULONG */
 302                         "AND keyval=?),?)";
 303                 snprintf( tmp, sizeof(tmp),
 304                         "INSERT INTO ldap_referrals "
 305                         "(entry_id,url) VALUES "
 306                         "((SELECT id FROM ldap_entries "
 307                         "WHERE oc_map_id=%lu "
 308                         "AND keyval=?),?)", oc_map->bom_id );
 309                 at_map->bam_add_proc = ch_strdup( tmp );
 310         }
 311
 312         at_map->bam_delete_proc = NULL;
 313         {
 314                 char    tmp[] =
 315                         "DELETE FROM ldap_referrals "
 316                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 317                         "WHERE oc_map_id="
 318                         "18446744073709551615UL "       /* 64 bit ULONG */
 319                         "AND keyval=?) and url=?";
 320                 snprintf( tmp, sizeof(tmp),
 321                         "DELETE FROM ldap_referrals "
 322                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 323                         "WHERE oc_map_id=%lu"
 324                         "AND keyval=?) and url=?",
 325                         oc_map->bom_id );
 326                 at_map->bam_delete_proc = ch_strdup( tmp );
 327         }
 328
 329         at_map->bam_param_order = 0;
 330         at_map->bam_expect_return = 0;
 331         at_map->bam_next = NULL;
 332
 333         backsql_make_attr_query( oc_map, at_map );
 334         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 335                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 336                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 337                                 at_map->bam_ad->ad_cname.bv_val,
 338                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 339         }
 340
 341         return 1;
 342 }
 343
 344 struct backsql_attr_schema_info {
 345         backsql_info    *bas_si;
 346         SQLHDBC         bas_dbh;
 347         SQLHSTMT        bas_sth;
 348         unsigned long   *bas_oc_id;
 349         int             bas_rc;
 350 };
 351
 352 static int
 353 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 354 {
 355         RETCODE                         rc;
 356         BACKSQL_ROW_NTS                 at_row;
 357         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 358         backsql_at_map_rec              *at_map;
 359         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 360
 361         /* bas->bas_oc_id has been bound to bas->bas_sth */
 362         *bas->bas_oc_id = oc_map->bom_id;
 363
 364         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 365                 "executing at_query\n"
 366                 "    \"%s\"\n"
 367                 "    for objectClass \"%s\"\n"
 368                 "    with param oc_id=\"%lu\"\n",
 369                 bas->bas_si->at_query,
 370                 BACKSQL_OC_NAME( oc_map ),
 371                 *bas->bas_oc_id );
 372
 373         rc = SQLExecute( bas->bas_sth );
 374         if ( rc != SQL_SUCCESS ) {
 375                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 376                         "error executing at_query\n"
 377                         "    \"%s\"\n"
 378                         "    for objectClass \"%s\"\n"
 379                         "    with param oc_id=\"%lu\"\n",
 380                         bas->bas_si->at_query,
 381                         BACKSQL_OC_NAME( oc_map ),
 382                         *bas->bas_oc_id );
 383                 backsql_PrintErrors( SQL_NULL_HENV, bas->bas_dbh, bas->bas_sth, rc );
 384                 bas->bas_rc = LDAP_OTHER;
 385                 return BACKSQL_AVL_STOP;
 386         }
 387
 388         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 389         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 390                 const char      *text = NULL;
 391                 struct berval   bv;
 392                 struct berbuf   bb = BB_NULL;
 393
 394                 Debug( LDAP_DEBUG_TRACE,
 395                         "attributeType:\n"
 396                         "\tname=\"%s\"\n"
 397                         "\tsel_expr=\"%s\"\n"
 398                         "\tfrom=\"%s\"\n",
 399                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 400                         at_row.cols[ 2 ] );
 401                 Debug( LDAP_DEBUG_TRACE,
 402                         "\tjoin_where=\"%s\"\n"
 403                         "\tadd_proc=\"%s\"\n"
 404                         "\tdelete_proc=\"%s\"\n",
 405                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 406                         at_row.cols[ 5 ]);
 407                 /* TimesTen */
 408                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 409                                 at_row.cols[ 8 ], 0, 0 );
 410                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 411                                 sizeof( backsql_at_map_rec ) );
 412                 rc = slap_str2ad( at_row.cols[ 0 ],
 413                                 &at_map->bam_ad, &text );
 414                 if ( rc != LDAP_SUCCESS ) {
 415                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 416                                 "attribute \"%s\" for objectClass \"%s\" "
 417                                 "is not defined in schema: %s\n",
 418                                 at_row.cols[ 0 ],
 419                                 BACKSQL_OC_NAME( oc_map ), text );
 420                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 421                         return BACKSQL_AVL_STOP;
 422                 }
 423
 424                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 425                 if ( at_row.value_len[ 8 ] < 0 ) {
 426                         BER_BVZERO( &at_map->bam_sel_expr_u );
 427
 428                 } else {
 429                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 430                                         &at_map->bam_sel_expr_u );
 431                 }
 432
 433                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 434                 backsql_merge_from_clause( &bb, &bv );
 435                 at_map->bam_from_tbls = bb.bb_val;
 436                 if ( at_row.value_len[ 3 ] < 0 ) {
 437                         BER_BVZERO( &at_map->bam_join_where );
 438
 439                 } else {
 440                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 441                                         &at_map->bam_join_where );
 442                 }
 443                 at_map->bam_add_proc = NULL;
 444                 if ( at_row.value_len[ 4 ] > 0 ) {
 445                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 446                 }
 447                 at_map->bam_delete_proc = NULL;
 448                 if ( at_row.value_len[ 5 ] > 0 ) {
 449                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 450                 }
 451                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 452                                 NULL, 0 );
 453                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 454                                 NULL, 0 );
 455                 backsql_make_attr_query( oc_map, at_map );
 456                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 457                         "preconstructed query \"%s\"\n",
 458                         at_map->bam_query, 0, 0 );
 459                 at_map->bam_next = NULL;
 460                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 461                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 462                                         "duplicate attribute \"%s\" "
 463                                         "in objectClass \"%s\" map\n",
 464                                         at_map->bam_ad->ad_cname.bv_val,
 465                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 466                 }
 467
 468                 if ( !BER_BVISNULL( &bas->bas_si->upper_func ) &&
 469                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 470                 {
 471                         struct berbuf   bb = BB_NULL;
 472
 473                         backsql_strfcat( &bb, "bcbc",
 474                                         &bas->bas_si->upper_func,
 475                                         '(' /* ) */ ,
 476                                         &at_map->bam_sel_expr,
 477                                         /* ( */ ')' );
 478                         at_map->bam_sel_expr_u = bb.bb_val;
 479                 }
 480         }
 481         backsql_FreeRow( &at_row );
 482         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 483
 484         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 485                 "autoadding 'objectClass' and 'ref' mappings\n",
 486                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 487
 488         (void)backsql_add_sysmaps( oc_map );
 489
 490         return BACKSQL_AVL_CONTINUE;
 491 }
 492
 493
 494 int
 495 backsql_load_schema_map( backsql_info *si, SQLHDBC dbh )
 496 {
 497         SQLHSTMT                        sth;
 498         RETCODE                         rc;
 499         BACKSQL_ROW_NTS                 oc_row;
 500         unsigned long                   oc_id;
 501         backsql_oc_map_rec              *oc_map;
 502         struct backsql_attr_schema_info bas;
 503
 504         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 505
 506         /*
 507          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 508          */
 509         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( si ) ) {
 510                 rc = backsql_Prepare( dbh, &sth,
 511                                 backsql_check_dn_ru_query, 0 );
 512                 if ( rc == SQL_SUCCESS ) {
 513                         /* Yes, the field exists */
 514                         si->bsql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 515                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 516                                 "in the schema\n", 0, 0, 0 );
 517                 } else {
 518                         /* No such field exists */
 519                         si->bsql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 520                 }
 521
 522                 SQLFreeStmt( sth, SQL_DROP );
 523         }
 524
 525         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 526                         si->oc_query, 0, 0 );
 527
 528         rc = backsql_Prepare( dbh, &sth, si->oc_query, 0 );
 529         if ( rc != SQL_SUCCESS ) {
 530                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 531                         "error preparing oc_query: \"%s\"\n",
 532                         si->oc_query, 0, 0 );
 533                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 534                 return LDAP_OTHER;
 535         }
 536
 537         rc = SQLExecute( sth );
 538         if ( rc != SQL_SUCCESS ) {
 539                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 540                         "error executing oc_query: \n", 0, 0, 0 );
 541                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 542                 return LDAP_OTHER;
 543         }
 544
 545         backsql_BindRowAsStrings( sth, &oc_row );
 546         rc = SQLFetch( sth );
 547         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 548                 int     colnum;
 549
 550                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 551                                 sizeof( backsql_oc_map_rec ) );
 552
 553                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 554
 555                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 556                 if ( oc_map->bom_oc == NULL ) {
 557                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 558                                 "objectClass \"%s\" is not defined in schema\n",
 559                                 oc_row.cols[ 1 ], 0, 0 );
 560                         return LDAP_OTHER;      /* undefined objectClass ? */
 561                 }
 562
 563                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 564                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 565                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 566                         : ch_strdup( oc_row.cols[ 4 ] );
 567
 568                 colnum = 5;
 569                 if ( BACKSQL_CREATE_NEEDS_SELECT( si ) ) {
 570                         colnum = 6;
 571                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 572                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 573                 }
 574                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 575                         : ch_strdup( oc_row.cols[ colnum ] );
 576                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 577                                 NULL, 0 );
 578
 579                 /*
 580                  * FIXME: first attempt to check for offending
 581                  * instructions in {create|delete}_proc
 582                  */
 583
 584                 oc_map->bom_attrs = NULL;
 585                 if ( avl_insert( &si->oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 586                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 587                                         "duplicate objectClass \"%s\" in objectClass map\n",
 588                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 589                         return LDAP_OTHER;
 590                 }
 591                 if ( avl_insert( &si->oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 592                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 593                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 594                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 595                         return LDAP_OTHER;
 596                 }
 597                 oc_id = oc_map->bom_id;
 598                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 599                         "objectClass \"%s\": keytbl=\"%s\" keycol=\"%s\"\n",
 600                         BACKSQL_OC_NAME( oc_map ),
 601                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 602                 if ( oc_map->bom_create_proc ) {
 603                         Debug( LDAP_DEBUG_TRACE, "create_proc=\"%s\"\n",
 604                                 oc_map->bom_create_proc, 0, 0 );
 605                 }
 606                 if ( oc_map->bom_create_keyval ) {
 607                         Debug( LDAP_DEBUG_TRACE, "create_keyval=\"%s\"\n",
 608                                 oc_map->bom_create_keyval, 0, 0 );
 609                 }
 610                 if ( oc_map->bom_delete_proc ) {
 611                         Debug( LDAP_DEBUG_TRACE, "delete_proc=\"%s\"\n",
 612                                 oc_map->bom_delete_proc, 0, 0 );
 613                 }
 614                 Debug( LDAP_DEBUG_TRACE, "expect_return: "
 615                         "add=%d, del=%d; attributes:\n",
 616                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 617                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 618         }
 619
 620         backsql_FreeRow( &oc_row );
 621         SQLFreeStmt( sth, SQL_DROP );
 622
 623         /* prepare for attribute fetching */
 624         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 625                         si->at_query, 0, 0 );
 626
 627         rc = backsql_Prepare( dbh, &sth, si->at_query, 0 );
 628         if ( rc != SQL_SUCCESS ) {
 629                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 630                         "error preparing at_query: \"%s\"\n",
 631                         si->at_query, 0, 0 );
 632                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 633                 return LDAP_OTHER;
 634         }
 635
 636         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 637         if ( rc != SQL_SUCCESS ) {
 638                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 639                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 640                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 641                 SQLFreeStmt( sth, SQL_DROP );
 642                 return LDAP_OTHER;
 643         }
 644
 645         bas.bas_si = si;
 646         bas.bas_dbh = dbh;
 647         bas.bas_sth = sth;
 648         bas.bas_oc_id = &oc_id;
 649         bas.bas_rc = LDAP_SUCCESS;
 650
 651         (void)avl_apply( si->oc_by_oc, backsql_oc_get_attr_mapping,
 652                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 653
 654         SQLFreeStmt( sth, SQL_DROP );
 655
 656         si->bsql_flags |= BSQLF_SCHEMA_LOADED;
 657
 658         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 659
 660         return bas.bas_rc;
 661 }
 662
 663 backsql_oc_map_rec *
 664 backsql_oc2oc( backsql_info *si, ObjectClass *oc )
 665 {
 666         backsql_oc_map_rec      tmp, *res;
 667
 668 #ifdef BACKSQL_TRACE
 669         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 670                 "searching for objectclass with name=\"%s\"\n",
 671                 oc->soc_cname.bv_val, 0, 0 );
 672 #endif /* BACKSQL_TRACE */
 673
 674         tmp.bom_oc = oc;
 675         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 676 #ifdef BACKSQL_TRACE
 677         if ( res != NULL ) {
 678                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 679                         "found name=\"%s\", id=%d\n",
 680                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 681         } else {
 682                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 683                         "not found\n", 0, 0, 0 );
 684         }
 685 #endif /* BACKSQL_TRACE */
 686
 687         return res;
 688 }
 689
 690 backsql_oc_map_rec *
 691 backsql_name2oc( backsql_info *si, struct berval *oc_name )
 692 {
 693         backsql_oc_map_rec      tmp, *res;
 694
 695 #ifdef BACKSQL_TRACE
 696         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 697                 "searching for objectclass with name=\"%s\"\n",
 698                 oc_name->bv_val, 0, 0 );
 699 #endif /* BACKSQL_TRACE */
 700
 701         tmp.bom_oc = oc_bvfind( oc_name );
 702         if ( tmp.bom_oc == NULL ) {
 703                 return NULL;
 704         }
 705
 706         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 707 #ifdef BACKSQL_TRACE
 708         if ( res != NULL ) {
 709                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 710                         "found name=\"%s\", id=%d\n",
 711                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 712         } else {
 713                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 714                         "not found\n", 0, 0, 0 );
 715         }
 716 #endif /* BACKSQL_TRACE */
 717
 718         return res;
 719 }
 720
 721 backsql_oc_map_rec *
 722 backsql_id2oc( backsql_info *si, unsigned long id )
 723 {
 724         backsql_oc_map_rec      tmp, *res;
 725
 726 #ifdef BACKSQL_TRACE
 727         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 728                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 729 #endif /* BACKSQL_TRACE */
 730
 731         tmp.bom_id = id;
 732         res = (backsql_oc_map_rec *)avl_find( si->oc_by_id, &tmp,
 733                         backsql_cmp_oc_id );
 734
 735 #ifdef BACKSQL_TRACE
 736         if ( res != NULL ) {
 737                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 738                         "found name=\"%s\", id=%d\n",
 739                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 740         } else {
 741                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 742                         "not found\n", 0, 0, 0 );
 743         }
 744 #endif /* BACKSQL_TRACE */
 745
 746         return res;
 747 }
 748
 749 backsql_at_map_rec *
 750 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 751 {
 752         backsql_at_map_rec      tmp, *res;
 753
 754 #ifdef BACKSQL_TRACE
 755         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 756                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 757                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 758 #endif /* BACKSQL_TRACE */
 759
 760         tmp.bam_ad = ad;
 761         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 762                         backsql_cmp_attr );
 763
 764 #ifdef BACKSQL_TRACE
 765         if ( res != NULL ) {
 766                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 767                         "found name=\"%s\", sel_expr=\"%s\"\n",
 768                         res->bam_ad->ad_cname.bv_val,
 769                         res->bam_sel_expr.bv_val, 0 );
 770         } else {
 771                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 772                         "not found\n", 0, 0, 0 );
 773         }
 774 #endif /* BACKSQL_TRACE */
 775
 776         return res;
 777 }
 778
 779 /* attributeType inheritance */
 780 struct supad2at_t {
 781         backsql_at_map_rec      **ret;
 782         AttributeDescription    *ad;
 783         unsigned                n;
 784 };
 785
 786 #define SUPAD2AT_STOP   (-1)
 787
 788 static int
 789 supad2at_f( void *v_at, void *v_arg )
 790 {
 791         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 792         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 793
 794         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 795                 backsql_at_map_rec      **ret;
 796                 unsigned                i;
 797
 798                 /* if already listed, holler! (should never happen) */
 799                 if ( va->ret ) {
 800                         for ( i = 0; i < va->n; i++ ) {
 801                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 802                                         break;
 803                                 }
 804                         }
 805
 806                         if ( i < va->n ) {
 807                                 return 0;
 808                         }
 809                 }
 810
 811                 ret = ch_realloc( va->ret,
 812                                 sizeof( backsql_at_map_rec *) * ( va->n + 2 ) );
 813                 if ( ret == NULL ) {
 814                         ch_free( va->ret );
 815                         return SUPAD2AT_STOP;
 816                 }
 817
 818                 ret[ va->n ] = at;
 819                 va->n++;
 820                 ret[ va->n ] = NULL;
 821                 va->ret = ret;
 822         }
 823
 824         return 0;
 825 }
 826
 827 /*
 828  * stores in *pret a NULL terminated array of pointers
 829  * to backsql_at_map_rec whose attributeType is supad->ad_type
 830  * or derived from it
 831  */
 832 int
 833 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 834                 backsql_at_map_rec ***pret )
 835 {
 836         struct supad2at_t       va;
 837         int                     rc;
 838
 839         assert( objclass );
 840         assert( supad );
 841         assert( pret );
 842
 843         *pret = NULL;
 844
 845         va.ret = NULL;
 846         va.ad = supad;
 847         va.n = 0;
 848
 849         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 850                         SUPAD2AT_STOP, AVL_INORDER );
 851         if ( rc == SUPAD2AT_STOP ) {
 852                 return -1;
 853         }
 854
 855         *pret = va.ret;
 856
 857         return 0;
 858 }
 859
 860 static void
 861 backsql_free_attr( void *v_at )
 862 {
 863         backsql_at_map_rec      *at = v_at;
 864
 865         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 866                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 867         ch_free( at->bam_sel_expr.bv_val );
 868         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 869                 ch_free( at->bam_from_tbls.bv_val );
 870         }
 871         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 872                 ch_free( at->bam_join_where.bv_val );
 873         }
 874         if ( at->bam_add_proc != NULL ) {
 875                 ch_free( at->bam_add_proc );
 876         }
 877         if ( at->bam_delete_proc != NULL ) {
 878                 ch_free( at->bam_delete_proc );
 879         }
 880         if ( at->bam_query ) {
 881                 ch_free( at->bam_query );
 882         }
 883
 884         /* TimesTen */
 885         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 886                 ch_free( at->bam_sel_expr_u.bv_val );
 887         }
 888
 889         if ( at->bam_next ) {
 890                 backsql_free_attr( at->bam_next );
 891         }
 892
 893         ch_free( at );
 894
 895         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 896 }
 897
 898 static void
 899 backsql_free_oc( void *v_oc )
 900 {
 901         backsql_oc_map_rec      *oc = v_oc;
 902
 903         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 904                         BACKSQL_OC_NAME( oc ), 0, 0 );
 905         avl_free( oc->bom_attrs, backsql_free_attr );
 906         ch_free( oc->bom_keytbl.bv_val );
 907         ch_free( oc->bom_keycol.bv_val );
 908         if ( oc->bom_create_proc != NULL ) {
 909                 ch_free( oc->bom_create_proc );
 910         }
 911         if ( oc->bom_create_keyval != NULL ) {
 912                 ch_free( oc->bom_create_keyval );
 913         }
 914         if ( oc->bom_delete_proc != NULL ) {
 915                 ch_free( oc->bom_delete_proc );
 916         }
 917         ch_free( oc );
 918
 919         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 920 }
 921
 922 int
 923 backsql_destroy_schema_map( backsql_info *si )
 924 {
 925         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 926         avl_free( si->oc_by_oc, 0 );
 927         avl_free( si->oc_by_id, backsql_free_oc );
 928         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 929         return 0;
 930 }
 931
 932 #endif /* SLAPD_SQL */
 933