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 #ifdef BACKSQL_ALIASING_QUOTE
 109         backsql_strfcat( &bb, "lblcbclblbcbl",
 110                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 111                         &at_map->bam_sel_expr,
 112                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 113                         BACKSQL_ALIASING_QUOTE,
 114                         &at_map->bam_ad->ad_cname,
 115                         BACKSQL_ALIASING_QUOTE,
 116                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 117                         &at_map->bam_from_tbls,
 118                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 119                         &oc_map->bom_keytbl,
 120                         '.',
 121                         &oc_map->bom_keycol,
 122                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 123 #else /* ! BACKSQL_ALIASING_QUOTE */
 124         backsql_strfcat( &bb, "lblblblbcbl",
 125                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 126                         &at_map->bam_sel_expr,
 127                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 128                         &at_map->bam_ad->ad_cname,
 129                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 130                         &at_map->bam_from_tbls,
 131                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 132                         &oc_map->bom_keytbl,
 133                         '.',
 134                         &oc_map->bom_keycol,
 135                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 136 #endif /* ! BACKSQL_ALIASING_QUOTE */
 137
 138         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 139                 backsql_strfcat( &bb, "lb",
 140                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 141                                 &at_map->bam_join_where );
 142         }
 143
 144 #ifdef BACKSQL_ALIASING_QUOTE
 145         backsql_strfcat( &bb, "lcbc",
 146                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 147                         BACKSQL_ALIASING_QUOTE,
 148                         &at_map->bam_sel_expr,
 149                         BACKSQL_ALIASING_QUOTE );
 150 #else /* ! BACKSQL_ALIASING_QUOTE */
 151         backsql_strfcat( &bb, "lb",
 152                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 153                         &at_map->bam_sel_expr );
 154 #endif /* ! BACKSQL_ALIASING_QUOTE */
 155
 156         at_map->bam_query = bb.bb_val.bv_val;
 157
 158 #ifdef BACKSQL_COUNTQUERY
 159         /* Query to count how many rows will be returned. */
 160         BER_BVZERO( &bb.bb_val );
 161         bb.bb_len = 0;
 162         backsql_strfcat( &bb, "lblbcbl",
 163                         (ber_len_t)STRLENOF( "SELECT COUNT(*) FROM " ),
 164                                 "SELECT COUNT(*) FROM ",
 165                         &at_map->bam_from_tbls,
 166                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 167                         &oc_map->bom_keytbl,
 168                         '.',
 169                         &oc_map->bom_keycol,
 170                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 171
 172         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 173                 backsql_strfcat( &bb, "lb",
 174                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 175                                 &at_map->bam_join_where );
 176         }
 177
 178         at_map->bam_countquery = bb.bb_val.bv_val;
 179 #endif /* BACKSQL_COUNTQUERY */
 180
 181         return 0;
 182 }
 183
 184 static int
 185 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 186 {
 187         backsql_at_map_rec      *at_map;
 188         char                    s[] = "+9223372036854775807L";
 189         struct berval           sbv;
 190         struct berbuf           bb;
 191
 192         sbv.bv_val = s;
 193         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 194         sbv.bv_len = strlen( s );
 195
 196         /* extra objectClasses */
 197         at_map = (backsql_at_map_rec *)ch_calloc(1,
 198                         sizeof( backsql_at_map_rec ) );
 199         at_map->bam_ad = slap_schema.si_ad_objectClass;
 200         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 201                         &at_map->bam_sel_expr );
 202         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 203                         &at_map->bam_from_tbls );
 204
 205         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 206         bb.bb_val = at_map->bam_from_tbls;
 207         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 208         at_map->bam_from_tbls = bb.bb_val;
 209
 210         BER_BVZERO( &bb.bb_val );
 211         bb.bb_len = 0;
 212         backsql_strfcat( &bb, "lbcblb",
 213                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 214                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 215                         &oc_map->bom_keytbl,
 216                         '.',
 217                         &oc_map->bom_keycol,
 218                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 219                                 " and ldap_entries.oc_map_id=",
 220                         &sbv );
 221         at_map->bam_join_where = bb.bb_val;
 222
 223         at_map->bam_oc = oc_map->bom_oc;
 224
 225         at_map->bam_add_proc = NULL;
 226         {
 227                 char    tmp[] =
 228                         "INSERT INTO ldap_entry_objclasses "
 229                         "(entry_id,oc_name) VALUES "
 230                         "((SELECT id FROM ldap_entries "
 231                         "WHERE oc_map_id="
 232                         "18446744073709551615UL "       /* 64 bit ULONG */
 233                         "AND keyval=?),?)";
 234                 snprintf( tmp, sizeof(tmp),
 235                         "INSERT INTO ldap_entry_objclasses "
 236                         "(entry_id,oc_name) VALUES "
 237                         "((SELECT id FROM ldap_entries "
 238                         "WHERE oc_map_id=%lu "
 239                         "AND keyval=?),?)", oc_map->bom_id );
 240                 at_map->bam_add_proc = ch_strdup( tmp );
 241         }
 242
 243         at_map->bam_delete_proc = NULL;
 244         {
 245                 char    tmp[] =
 246                         "DELETE FROM ldap_entry_objclasses "
 247                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 248                         "WHERE oc_map_id="
 249                         "18446744073709551615UL "       /* 64 bit ULONG */
 250                         "AND keyval=?) AND oc_name=?";
 251                 snprintf( tmp, sizeof(tmp),
 252                         "DELETE FROM ldap_entry_objclasses "
 253                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 254                         "WHERE oc_map_id=%lu"
 255                         "AND keyval=?) AND oc_name=?",
 256                         oc_map->bom_id );
 257                 at_map->bam_delete_proc = ch_strdup( tmp );
 258         }
 259
 260         at_map->bam_param_order = 0;
 261         at_map->bam_expect_return = 0;
 262         at_map->bam_next = NULL;
 263
 264         backsql_make_attr_query( oc_map, at_map );
 265         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 266                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 267                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 268                                 at_map->bam_ad->ad_cname.bv_val,
 269                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 270         }
 271
 272         /* FIXME: we need to correct the objectClass join_where
 273          * after the attribute query is built */
 274         ch_free( at_map->bam_join_where.bv_val );
 275         BER_BVZERO( &bb.bb_val );
 276         bb.bb_len = 0;
 277         backsql_strfcat( &bb, "lbcblb",
 278                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 279                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 280                         &oc_map->bom_keytbl,
 281                         '.',
 282                         &oc_map->bom_keycol,
 283                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 284                                 " AND ldap_entries.oc_map_id=",
 285                         &sbv );
 286         at_map->bam_join_where = bb.bb_val;
 287
 288         /* referral attribute */
 289         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 290                         sizeof( backsql_at_map_rec ) );
 291         at_map->bam_ad = slap_schema.si_ad_ref;
 292         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 293         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 294
 295         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 296         bb.bb_val = at_map->bam_from_tbls;
 297         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 298         at_map->bam_from_tbls = bb.bb_val;
 299
 300         BER_BVZERO( &bb.bb_val );
 301         bb.bb_len = 0;
 302         backsql_strfcat( &bb, "lbcblb",
 303                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=" ),
 304                                 "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=",
 305                         &oc_map->bom_keytbl,
 306                         '.',
 307                         &oc_map->bom_keycol,
 308                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 309                                 " AND ldap_entries.oc_map_id=",
 310                         &sbv );
 311
 312         at_map->bam_join_where = bb.bb_val;
 313
 314         at_map->bam_oc = NULL;
 315
 316         at_map->bam_add_proc = NULL;
 317         {
 318                 char    tmp[] =
 319                         "INSERT INTO ldap_referrals "
 320                         "(entry_id,url) VALUES "
 321                         "((SELECT id FROM ldap_entries "
 322                         "WHERE oc_map_id="
 323                         "18446744073709551615UL "       /* 64 bit ULONG */
 324                         "AND keyval=?),?)";
 325                 snprintf( tmp, sizeof(tmp),
 326                         "INSERT INTO ldap_referrals "
 327                         "(entry_id,url) VALUES "
 328                         "((SELECT id FROM ldap_entries "
 329                         "WHERE oc_map_id=%lu "
 330                         "AND keyval=?),?)", oc_map->bom_id );
 331                 at_map->bam_add_proc = ch_strdup( tmp );
 332         }
 333
 334         at_map->bam_delete_proc = NULL;
 335         {
 336                 char    tmp[] =
 337                         "DELETE FROM ldap_referrals "
 338                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 339                         "WHERE oc_map_id="
 340                         "18446744073709551615UL "       /* 64 bit ULONG */
 341                         "AND keyval=?) and url=?";
 342                 snprintf( tmp, sizeof(tmp),
 343                         "DELETE FROM ldap_referrals "
 344                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 345                         "WHERE oc_map_id=%lu"
 346                         "AND keyval=?) and url=?",
 347                         oc_map->bom_id );
 348                 at_map->bam_delete_proc = ch_strdup( tmp );
 349         }
 350
 351         at_map->bam_param_order = 0;
 352         at_map->bam_expect_return = 0;
 353         at_map->bam_next = NULL;
 354
 355         backsql_make_attr_query( oc_map, at_map );
 356         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 357                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 358                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 359                                 at_map->bam_ad->ad_cname.bv_val,
 360                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 361         }
 362
 363         return 1;
 364 }
 365
 366 struct backsql_attr_schema_info {
 367         backsql_info    *bas_bi;
 368         SQLHDBC         bas_dbh;
 369         SQLHSTMT        bas_sth;
 370         unsigned long   *bas_oc_id;
 371         int             bas_rc;
 372 };
 373
 374 static int
 375 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 376 {
 377         RETCODE                         rc;
 378         BACKSQL_ROW_NTS                 at_row;
 379         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 380         backsql_at_map_rec              *at_map;
 381         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 382
 383         /* bas->bas_oc_id has been bound to bas->bas_sth */
 384         *bas->bas_oc_id = oc_map->bom_id;
 385
 386         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 387                 "executing at_query\n"
 388                 "    \"%s\"\n"
 389                 "    for objectClass \"%s\"\n"
 390                 "    with param oc_id=\"%lu\"\n",
 391                 bas->bas_bi->sql_at_query,
 392                 BACKSQL_OC_NAME( oc_map ),
 393                 *bas->bas_oc_id );
 394
 395         rc = SQLExecute( bas->bas_sth );
 396         if ( rc != SQL_SUCCESS ) {
 397                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 398                         "error executing at_query\n"
 399                         "    \"%s\"\n"
 400                         "    for objectClass \"%s\"\n"
 401                         "    with param oc_id=\"%lu\"\n",
 402                         bas->bas_bi->sql_at_query,
 403                         BACKSQL_OC_NAME( oc_map ),
 404                         *bas->bas_oc_id );
 405                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 406                                 bas->bas_dbh, bas->bas_sth, rc );
 407                 bas->bas_rc = LDAP_OTHER;
 408                 return BACKSQL_AVL_STOP;
 409         }
 410
 411         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 412         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 413                 const char      *text = NULL;
 414                 char            *next = NULL;
 415                 struct berval   bv;
 416                 struct berbuf   bb = BB_NULL;
 417
 418                 Debug( LDAP_DEBUG_TRACE,
 419                         "attributeType:\n"
 420                         "\tname=\"%s\"\n"
 421                         "\tsel_expr=\"%s\"\n"
 422                         "\tfrom=\"%s\"\n",
 423                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 424                         at_row.cols[ 2 ] );
 425                 Debug( LDAP_DEBUG_TRACE,
 426                         "\tjoin_where=\"%s\"\n"
 427                         "\tadd_proc=\"%s\"\n"
 428                         "\tdelete_proc=\"%s\"\n",
 429                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 430                         at_row.cols[ 5 ]);
 431                 /* TimesTen */
 432                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 433                                 at_row.cols[ 8 ], 0, 0 );
 434                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 435                                 sizeof( backsql_at_map_rec ) );
 436                 rc = slap_str2ad( at_row.cols[ 0 ],
 437                                 &at_map->bam_ad, &text );
 438                 if ( rc != LDAP_SUCCESS ) {
 439                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 440                                 "attribute \"%s\" for objectClass \"%s\" "
 441                                 "is not defined in schema: %s\n",
 442                                 at_row.cols[ 0 ],
 443                                 BACKSQL_OC_NAME( oc_map ), text );
 444                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 445                         return BACKSQL_AVL_STOP;
 446                 }
 447
 448                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 449                 if ( at_row.value_len[ 8 ] < 0 ) {
 450                         BER_BVZERO( &at_map->bam_sel_expr_u );
 451
 452                 } else {
 453                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 454                                         &at_map->bam_sel_expr_u );
 455                 }
 456
 457                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 458                 backsql_merge_from_clause( &bb, &bv );
 459                 at_map->bam_from_tbls = bb.bb_val;
 460                 if ( at_row.value_len[ 3 ] < 0 ) {
 461                         BER_BVZERO( &at_map->bam_join_where );
 462
 463                 } else {
 464                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 465                                         &at_map->bam_join_where );
 466                 }
 467                 at_map->bam_add_proc = NULL;
 468                 if ( at_row.value_len[ 4 ] > 0 ) {
 469                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 470                 }
 471                 at_map->bam_delete_proc = NULL;
 472                 if ( at_row.value_len[ 5 ] > 0 ) {
 473                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 474                 }
 475                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 476                                 &next, 0 );
 477                 if ( next == at_row.cols[ 6 ] || next[0] != '\0' ) {
 478                         /* error */
 479                 }
 480                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 481                                 &next, 0 );
 482                 if ( next == at_row.cols[ 7 ] || next[0] != '\0' ) {
 483                         /* error */
 484                 }
 485                 backsql_make_attr_query( oc_map, at_map );
 486                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 487                         "preconstructed query \"%s\"\n",
 488                         at_map->bam_query, 0, 0 );
 489                 at_map->bam_next = NULL;
 490                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 491                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 492                                         "duplicate attribute \"%s\" "
 493                                         "in objectClass \"%s\" map\n",
 494                                         at_map->bam_ad->ad_cname.bv_val,
 495                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 496                 }
 497
 498                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 499                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 500                 {
 501                         struct berbuf   bb = BB_NULL;
 502
 503                         backsql_strfcat( &bb, "bcbc",
 504                                         &bas->bas_bi->sql_upper_func,
 505                                         '(' /* ) */ ,
 506                                         &at_map->bam_sel_expr,
 507                                         /* ( */ ')' );
 508                         at_map->bam_sel_expr_u = bb.bb_val;
 509                 }
 510         }
 511         backsql_FreeRow( &at_row );
 512         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 513
 514         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 515                 "autoadding 'objectClass' and 'ref' mappings\n",
 516                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 517
 518         (void)backsql_add_sysmaps( oc_map );
 519
 520         return BACKSQL_AVL_CONTINUE;
 521 }
 522
 523
 524 int
 525 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 526 {
 527         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 528         RETCODE                         rc;
 529         BACKSQL_ROW_NTS                 oc_row;
 530         unsigned long                   oc_id;
 531         backsql_oc_map_rec              *oc_map;
 532         struct backsql_attr_schema_info bas;
 533
 534         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 535
 536         /*
 537          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 538          */
 539         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 540                 rc = backsql_Prepare( dbh, &sth,
 541                                 backsql_check_dn_ru_query, 0 );
 542                 if ( rc == SQL_SUCCESS ) {
 543                         /* Yes, the field exists */
 544                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 545                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 546                                 "in the schema\n", 0, 0, 0 );
 547                 } else {
 548                         /* No such field exists */
 549                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 550                 }
 551
 552                 SQLFreeStmt( sth, SQL_DROP );
 553         }
 554
 555         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 556                         bi->sql_oc_query, 0, 0 );
 557
 558         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 559         if ( rc != SQL_SUCCESS ) {
 560                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 561                         "error preparing oc_query: \"%s\"\n",
 562                         bi->sql_oc_query, 0, 0 );
 563                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 564                 return LDAP_OTHER;
 565         }
 566
 567         rc = SQLExecute( sth );
 568         if ( rc != SQL_SUCCESS ) {
 569                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 570                         "error executing oc_query: \n", 0, 0, 0 );
 571                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 572                 return LDAP_OTHER;
 573         }
 574
 575         backsql_BindRowAsStrings( sth, &oc_row );
 576         rc = SQLFetch( sth );
 577         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 578                 int     colnum;
 579
 580                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 581                                 sizeof( backsql_oc_map_rec ) );
 582
 583                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 584
 585                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 586                 if ( oc_map->bom_oc == NULL ) {
 587                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 588                                 "objectClass \"%s\" is not defined in schema\n",
 589                                 oc_row.cols[ 1 ], 0, 0 );
 590                         return LDAP_OTHER;      /* undefined objectClass ? */
 591                 }
 592
 593                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 594                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 595                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 596                         : ch_strdup( oc_row.cols[ 4 ] );
 597
 598                 colnum = 5;
 599                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 600                         colnum = 6;
 601                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 602                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 603                 }
 604                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 605                         : ch_strdup( oc_row.cols[ colnum ] );
 606                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 607                                 NULL, 0 );
 608
 609                 colnum += 2;
 610                 if ( ( oc_row.ncols > colnum ) &&
 611                                 ( oc_row.value_len[ colnum ] > 0 ) )
 612                 {
 613                         const char      *text;
 614
 615                         oc_map->bom_create_hint = NULL;
 616                         rc = slap_str2ad( oc_row.cols[ colnum ],
 617                                         &oc_map->bom_create_hint, &text );
 618                         if ( rc != SQL_SUCCESS ) {
 619                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 620                                                 "error matching "
 621                                                 "AttributeDescription %s "
 622                                                 "in create_hint: %s (%d)\n",
 623                                                 oc_row.cols[ colnum ],
 624                                                 text, rc );
 625                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 626                                                 sth, rc );
 627                                 return LDAP_OTHER;
 628                         }
 629                 }
 630
 631                 /*
 632                  * FIXME: first attempt to check for offending
 633                  * instructions in {create|delete}_proc
 634                  */
 635
 636                 oc_map->bom_attrs = NULL;
 637                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 638                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 639                                         "duplicate objectClass \"%s\" in objectClass map\n",
 640                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 641                         return LDAP_OTHER;
 642                 }
 643                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 644                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 645                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 646                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 647                         return LDAP_OTHER;
 648                 }
 649                 oc_id = oc_map->bom_id;
 650                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 651                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 652                         BACKSQL_OC_NAME( oc_map ),
 653                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 654                 if ( oc_map->bom_create_proc ) {
 655                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 656                                 oc_map->bom_create_proc, 0, 0 );
 657                 }
 658                 if ( oc_map->bom_create_keyval ) {
 659                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 660                                 oc_map->bom_create_keyval, 0, 0 );
 661                 }
 662                 if ( oc_map->bom_create_hint ) {
 663                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 664                                 oc_map->bom_create_hint->ad_cname.bv_val,
 665                                 0, 0 );
 666                 }
 667                 if ( oc_map->bom_delete_proc ) {
 668                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 669                                 oc_map->bom_delete_proc, 0, 0 );
 670                 }
 671                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 672                         "add=%d, del=%d; attributes:\n",
 673                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 674                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 675         }
 676
 677         backsql_FreeRow( &oc_row );
 678         SQLFreeStmt( sth, SQL_DROP );
 679
 680         /* prepare for attribute fetching */
 681         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 682                         bi->sql_at_query, 0, 0 );
 683
 684         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 685         if ( rc != SQL_SUCCESS ) {
 686                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 687                         "error preparing at_query: \"%s\"\n",
 688                         bi->sql_at_query, 0, 0 );
 689                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 690                 return LDAP_OTHER;
 691         }
 692
 693         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 694         if ( rc != SQL_SUCCESS ) {
 695                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 696                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 697                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 698                 SQLFreeStmt( sth, SQL_DROP );
 699                 return LDAP_OTHER;
 700         }
 701
 702         bas.bas_bi = bi;
 703         bas.bas_dbh = dbh;
 704         bas.bas_sth = sth;
 705         bas.bas_oc_id = &oc_id;
 706         bas.bas_rc = LDAP_SUCCESS;
 707
 708         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 709                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 710
 711         SQLFreeStmt( sth, SQL_DROP );
 712
 713         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 714
 715         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 716
 717         return bas.bas_rc;
 718 }
 719
 720 backsql_oc_map_rec *
 721 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 722 {
 723         backsql_oc_map_rec      tmp, *res;
 724
 725 #ifdef BACKSQL_TRACE
 726         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 727                 "searching for objectclass with name=\"%s\"\n",
 728                 oc->soc_cname.bv_val, 0, 0 );
 729 #endif /* BACKSQL_TRACE */
 730
 731         tmp.bom_oc = oc;
 732         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 733 #ifdef BACKSQL_TRACE
 734         if ( res != NULL ) {
 735                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 736                         "found name=\"%s\", id=%d\n",
 737                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 738         } else {
 739                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 740                         "not found\n", 0, 0, 0 );
 741         }
 742 #endif /* BACKSQL_TRACE */
 743
 744         return res;
 745 }
 746
 747 backsql_oc_map_rec *
 748 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 749 {
 750         backsql_oc_map_rec      tmp, *res;
 751
 752 #ifdef BACKSQL_TRACE
 753         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 754                 "searching for objectclass with name=\"%s\"\n",
 755                 oc_name->bv_val, 0, 0 );
 756 #endif /* BACKSQL_TRACE */
 757
 758         tmp.bom_oc = oc_bvfind( oc_name );
 759         if ( tmp.bom_oc == NULL ) {
 760                 return NULL;
 761         }
 762
 763         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 764 #ifdef BACKSQL_TRACE
 765         if ( res != NULL ) {
 766                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 767                         "found name=\"%s\", id=%d\n",
 768                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 769         } else {
 770                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 771                         "not found\n", 0, 0, 0 );
 772         }
 773 #endif /* BACKSQL_TRACE */
 774
 775         return res;
 776 }
 777
 778 backsql_oc_map_rec *
 779 backsql_id2oc( backsql_info *bi, unsigned long id )
 780 {
 781         backsql_oc_map_rec      tmp, *res;
 782
 783 #ifdef BACKSQL_TRACE
 784         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 785                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 786 #endif /* BACKSQL_TRACE */
 787
 788         tmp.bom_id = id;
 789         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 790                         backsql_cmp_oc_id );
 791
 792 #ifdef BACKSQL_TRACE
 793         if ( res != NULL ) {
 794                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 795                         "found name=\"%s\", id=%d\n",
 796                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 797         } else {
 798                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 799                         "not found\n", 0, 0, 0 );
 800         }
 801 #endif /* BACKSQL_TRACE */
 802
 803         return res;
 804 }
 805
 806 backsql_at_map_rec *
 807 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 808 {
 809         backsql_at_map_rec      tmp, *res;
 810
 811 #ifdef BACKSQL_TRACE
 812         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 813                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 814                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 815 #endif /* BACKSQL_TRACE */
 816
 817         tmp.bam_ad = ad;
 818         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 819                         backsql_cmp_attr );
 820
 821 #ifdef BACKSQL_TRACE
 822         if ( res != NULL ) {
 823                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 824                         "found name=\"%s\", sel_expr=\"%s\"\n",
 825                         res->bam_ad->ad_cname.bv_val,
 826                         res->bam_sel_expr.bv_val, 0 );
 827         } else {
 828                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 829                         "not found\n", 0, 0, 0 );
 830         }
 831 #endif /* BACKSQL_TRACE */
 832
 833         return res;
 834 }
 835
 836 /* attributeType inheritance */
 837 struct supad2at_t {
 838         backsql_at_map_rec      **ret;
 839         AttributeDescription    *ad;
 840         unsigned                n;
 841 };
 842
 843 #define SUPAD2AT_STOP   (-1)
 844
 845 static int
 846 supad2at_f( void *v_at, void *v_arg )
 847 {
 848         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 849         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 850
 851         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 852                 backsql_at_map_rec      **ret = NULL;
 853                 unsigned                i;
 854
 855                 /* if already listed, holler! (should never happen) */
 856                 if ( va->ret ) {
 857                         for ( i = 0; i < va->n; i++ ) {
 858                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 859                                         break;
 860                                 }
 861                         }
 862
 863                         if ( i < va->n ) {
 864                                 return 0;
 865                         }
 866                 }
 867
 868                 ret = ch_realloc( va->ret,
 869                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 870                 if ( ret == NULL ) {
 871                         ch_free( va->ret );
 872                         va->ret = NULL;
 873                         va->n = 0;
 874                         return SUPAD2AT_STOP;
 875                 }
 876
 877                 ret[ va->n ] = at;
 878                 va->n++;
 879                 ret[ va->n ] = NULL;
 880                 va->ret = ret;
 881         }
 882
 883         return 0;
 884 }
 885
 886 /*
 887  * stores in *pret a NULL terminated array of pointers
 888  * to backsql_at_map_rec whose attributeType is supad->ad_type
 889  * or derived from it
 890  */
 891 int
 892 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 893                 backsql_at_map_rec ***pret )
 894 {
 895         struct supad2at_t       va = { 0 };
 896         int                     rc;
 897
 898         assert( objclass );
 899         assert( supad );
 900         assert( pret );
 901
 902         *pret = NULL;
 903
 904         va.ad = supad;
 905
 906         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 907                         SUPAD2AT_STOP, AVL_INORDER );
 908         if ( rc == SUPAD2AT_STOP ) {
 909                 return -1;
 910         }
 911
 912         *pret = va.ret;
 913
 914         return 0;
 915 }
 916
 917 static void
 918 backsql_free_attr( void *v_at )
 919 {
 920         backsql_at_map_rec      *at = v_at;
 921
 922         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 923                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 924         ch_free( at->bam_sel_expr.bv_val );
 925         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 926                 ch_free( at->bam_from_tbls.bv_val );
 927         }
 928         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 929                 ch_free( at->bam_join_where.bv_val );
 930         }
 931         if ( at->bam_add_proc != NULL ) {
 932                 ch_free( at->bam_add_proc );
 933         }
 934         if ( at->bam_delete_proc != NULL ) {
 935                 ch_free( at->bam_delete_proc );
 936         }
 937         if ( at->bam_query != NULL ) {
 938                 ch_free( at->bam_query );
 939         }
 940
 941         /* TimesTen */
 942         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 943                 ch_free( at->bam_sel_expr_u.bv_val );
 944         }
 945
 946         if ( at->bam_next ) {
 947                 backsql_free_attr( at->bam_next );
 948         }
 949
 950         ch_free( at );
 951
 952         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 953 }
 954
 955 static void
 956 backsql_free_oc( void *v_oc )
 957 {
 958         backsql_oc_map_rec      *oc = v_oc;
 959
 960         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 961                         BACKSQL_OC_NAME( oc ), 0, 0 );
 962         avl_free( oc->bom_attrs, backsql_free_attr );
 963         ch_free( oc->bom_keytbl.bv_val );
 964         ch_free( oc->bom_keycol.bv_val );
 965         if ( oc->bom_create_proc != NULL ) {
 966                 ch_free( oc->bom_create_proc );
 967         }
 968         if ( oc->bom_create_keyval != NULL ) {
 969                 ch_free( oc->bom_create_keyval );
 970         }
 971         if ( oc->bom_delete_proc != NULL ) {
 972                 ch_free( oc->bom_delete_proc );
 973         }
 974         ch_free( oc );
 975
 976         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 977 }
 978
 979 int
 980 backsql_destroy_schema_map( backsql_info *bi )
 981 {
 982         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 983         avl_free( bi->sql_oc_by_oc, 0 );
 984         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 985         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 986         return 0;
 987 }
 988