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 "proto-sql.h"
  31
  32 #define BACKSQL_DUPLICATE       (-1)
  33
  34 /* NOTE: by default, cannot just compare pointers because
  35  * objectClass/attributeType order would be machine-dependent
  36  * (and tests would fail!); however, if you don't want to run
  37  * tests, or see attributeTypes written in the same order
  38  * they are defined, define */
  39 /* #undef BACKSQL_USE_PTR_CMP */
  40
  41 /*
  42  * Uses the pointer to the ObjectClass structure
  43  */
  44 static int
  45 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  46 {
  47         const backsql_oc_map_rec        *m1 = v_m1,
  48                                         *m2 = v_m2;
  49
  50 #ifdef BACKSQL_USE_PTR_CMP
  51         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  52 #else /* ! BACKSQL_USE_PTR_CMP */
  53         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  54 #endif /* ! BACKSQL_USE_PTR_CMP */
  55 }
  56
  57 static int
  58 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  59 {
  60         const backsql_oc_map_rec        *m1 = v_m1,
  61                                         *m2 = v_m2;
  62
  63         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  64 }
  65
  66 /*
  67  * Uses the pointer to the AttributeDescription structure
  68  */
  69 static int
  70 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  71 {
  72         const backsql_at_map_rec        *m1 = v_m1,
  73                                         *m2 = v_m2;
  74
  75 #ifdef BACKSQL_USE_PTR_CMP
  76         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  77 #else /* ! BACKSQL_USE_PTR_CMP */
  78         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  79 #endif /* ! BACKSQL_USE_PTR_CMP */
  80 }
  81
  82 int
  83 backsql_dup_attr( void *v_m1, void *v_m2 )
  84 {
  85         backsql_at_map_rec              *m1 = v_m1,
  86                                         *m2 = v_m2;
  87
  88         assert( m1->bam_ad == m2->bam_ad );
  89
  90         /* duplicate definitions of attributeTypes are appended;
  91          * this allows to define multiple rules for the same
  92          * attributeType.  Use with care! */
  93         for ( ; m1->bam_next ; m1 = m1->bam_next );
  94         m1->bam_next = m2;
  95         m2->bam_next = NULL;
  96
  97         return BACKSQL_DUPLICATE;
  98 }
  99
 100 static int
 101 backsql_make_attr_query(
 102         backsql_oc_map_rec      *oc_map,
 103         backsql_at_map_rec      *at_map )
 104 {
 105         struct berbuf   bb = BB_NULL;
 106
 107 #ifdef BACKSQL_ALIASING_QUOTE
 108         backsql_strfcat( &bb, "lblcbclblbcbl",
 109                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 110                         &at_map->bam_sel_expr,
 111                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 112                         BACKSQL_ALIASING_QUOTE,
 113                         &at_map->bam_ad->ad_cname,
 114                         BACKSQL_ALIASING_QUOTE,
 115                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 116                         &at_map->bam_from_tbls,
 117                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 118                         &oc_map->bom_keytbl,
 119                         '.',
 120                         &oc_map->bom_keycol,
 121                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 122 #else /* ! BACKSQL_ALIASING_QUOTE */
 123         backsql_strfcat( &bb, "lblblblbcbl",
 124                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 125                         &at_map->bam_sel_expr,
 126                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 127                         &at_map->bam_ad->ad_cname,
 128                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 129                         &at_map->bam_from_tbls,
 130                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 131                         &oc_map->bom_keytbl,
 132                         '.',
 133                         &oc_map->bom_keycol,
 134                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 135 #endif /* ! BACKSQL_ALIASING_QUOTE */
 136
 137         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 138                 backsql_strfcat( &bb, "lb",
 139                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 140                                 &at_map->bam_join_where );
 141         }
 142
 143 #ifdef BACKSQL_ALIASING_QUOTE
 144         backsql_strfcat( &bb, "lcbc",
 145                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 146                         BACKSQL_ALIASING_QUOTE,
 147                         &at_map->bam_sel_expr,
 148                         BACKSQL_ALIASING_QUOTE );
 149 #else /* ! BACKSQL_ALIASING_QUOTE */
 150         backsql_strfcat( &bb, "lb",
 151                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 152                         &at_map->bam_sel_expr );
 153 #endif /* ! BACKSQL_ALIASING_QUOTE */
 154
 155         at_map->bam_query = bb.bb_val.bv_val;
 156
 157         return 0;
 158 }
 159
 160 static int
 161 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 162 {
 163         backsql_at_map_rec      *at_map;
 164         char                    s[] = "+9223372036854775807L";
 165         struct berval           sbv;
 166         struct berbuf           bb;
 167
 168         sbv.bv_val = s;
 169         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 170         sbv.bv_len = strlen( s );
 171
 172         /* extra objectClasses */
 173         at_map = (backsql_at_map_rec *)ch_calloc(1,
 174                         sizeof( backsql_at_map_rec ) );
 175         at_map->bam_ad = slap_schema.si_ad_objectClass;
 176         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 177                         &at_map->bam_sel_expr );
 178         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 179                         &at_map->bam_from_tbls );
 180
 181         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 182         bb.bb_val = at_map->bam_from_tbls;
 183         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 184         at_map->bam_from_tbls = bb.bb_val;
 185
 186         BER_BVZERO( &bb.bb_val );
 187         bb.bb_len = 0;
 188         backsql_strfcat( &bb, "lbcblb",
 189                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 190                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 191                         &oc_map->bom_keytbl,
 192                         '.',
 193                         &oc_map->bom_keycol,
 194                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 195                                 " and ldap_entries.oc_map_id=",
 196                         &sbv );
 197         at_map->bam_join_where = bb.bb_val;
 198
 199         at_map->bam_oc = oc_map->bom_oc;
 200
 201         at_map->bam_add_proc = NULL;
 202         {
 203                 char    tmp[] =
 204                         "INSERT INTO ldap_entry_objclasses "
 205                         "(entry_id,oc_name) VALUES "
 206                         "((SELECT id FROM ldap_entries "
 207                         "WHERE oc_map_id="
 208                         "18446744073709551615UL "       /* 64 bit ULONG */
 209                         "AND keyval=?),?)";
 210                 snprintf( tmp, sizeof(tmp),
 211                         "INSERT INTO ldap_entry_objclasses "
 212                         "(entry_id,oc_name) VALUES "
 213                         "((SELECT id FROM ldap_entries "
 214                         "WHERE oc_map_id=%lu "
 215                         "AND keyval=?),?)", oc_map->bom_id );
 216                 at_map->bam_add_proc = ch_strdup( tmp );
 217         }
 218
 219         at_map->bam_delete_proc = NULL;
 220         {
 221                 char    tmp[] =
 222                         "DELETE FROM ldap_entry_objclasses "
 223                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 224                         "WHERE oc_map_id="
 225                         "18446744073709551615UL "       /* 64 bit ULONG */
 226                         "AND keyval=?) AND oc_name=?";
 227                 snprintf( tmp, sizeof(tmp),
 228                         "DELETE FROM ldap_entry_objclasses "
 229                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 230                         "WHERE oc_map_id=%lu"
 231                         "AND keyval=?) AND oc_name=?",
 232                         oc_map->bom_id );
 233                 at_map->bam_delete_proc = ch_strdup( tmp );
 234         }
 235
 236         at_map->bam_param_order = 0;
 237         at_map->bam_expect_return = 0;
 238         at_map->bam_next = NULL;
 239
 240         backsql_make_attr_query( oc_map, at_map );
 241         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 242                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 243                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 244                                 at_map->bam_ad->ad_cname.bv_val,
 245                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 246         }
 247
 248         /* FIXME: we need to correct the objectClass join_where
 249          * after the attribute query is built */
 250         ch_free( at_map->bam_join_where.bv_val );
 251         BER_BVZERO( &bb.bb_val );
 252         bb.bb_len = 0;
 253         backsql_strfcat( &bb, "lbcblb",
 254                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 255                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 256                         &oc_map->bom_keytbl,
 257                         '.',
 258                         &oc_map->bom_keycol,
 259                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 260                                 " AND ldap_entries.oc_map_id=",
 261                         &sbv );
 262         at_map->bam_join_where = bb.bb_val;
 263
 264         /* referral attribute */
 265         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 266                         sizeof( backsql_at_map_rec ) );
 267         at_map->bam_ad = slap_schema.si_ad_ref;
 268         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 269         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 270
 271         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 272         bb.bb_val = at_map->bam_from_tbls;
 273         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 274         at_map->bam_from_tbls = bb.bb_val;
 275
 276         BER_BVZERO( &bb.bb_val );
 277         bb.bb_len = 0;
 278         backsql_strfcat( &bb, "lbcblb",
 279                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=" ),
 280                                 "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=",
 281                         &oc_map->bom_keytbl,
 282                         '.',
 283                         &oc_map->bom_keycol,
 284                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 285                                 " AND ldap_entries.oc_map_id=",
 286                         &sbv );
 287
 288         at_map->bam_join_where = bb.bb_val;
 289
 290         at_map->bam_oc = NULL;
 291
 292         at_map->bam_add_proc = NULL;
 293         {
 294                 char    tmp[] =
 295                         "INSERT INTO ldap_referrals "
 296                         "(entry_id,url) VALUES "
 297                         "((SELECT id FROM ldap_entries "
 298                         "WHERE oc_map_id="
 299                         "18446744073709551615UL "       /* 64 bit ULONG */
 300                         "AND keyval=?),?)";
 301                 snprintf( tmp, sizeof(tmp),
 302                         "INSERT INTO ldap_referrals "
 303                         "(entry_id,url) VALUES "
 304                         "((SELECT id FROM ldap_entries "
 305                         "WHERE oc_map_id=%lu "
 306                         "AND keyval=?),?)", oc_map->bom_id );
 307                 at_map->bam_add_proc = ch_strdup( tmp );
 308         }
 309
 310         at_map->bam_delete_proc = NULL;
 311         {
 312                 char    tmp[] =
 313                         "DELETE FROM ldap_referrals "
 314                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 315                         "WHERE oc_map_id="
 316                         "18446744073709551615UL "       /* 64 bit ULONG */
 317                         "AND keyval=?) and url=?";
 318                 snprintf( tmp, sizeof(tmp),
 319                         "DELETE FROM ldap_referrals "
 320                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 321                         "WHERE oc_map_id=%lu"
 322                         "AND keyval=?) and url=?",
 323                         oc_map->bom_id );
 324                 at_map->bam_delete_proc = ch_strdup( tmp );
 325         }
 326
 327         at_map->bam_param_order = 0;
 328         at_map->bam_expect_return = 0;
 329         at_map->bam_next = NULL;
 330
 331         backsql_make_attr_query( oc_map, at_map );
 332         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 333                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 334                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 335                                 at_map->bam_ad->ad_cname.bv_val,
 336                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 337         }
 338
 339         return 1;
 340 }
 341
 342 struct backsql_attr_schema_info {
 343         backsql_info    *bas_si;
 344         SQLHDBC         bas_dbh;
 345         SQLHSTMT        bas_sth;
 346         unsigned long   *bas_oc_id;
 347         int             bas_rc;
 348 };
 349
 350 static int
 351 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 352 {
 353         RETCODE                         rc;
 354         BACKSQL_ROW_NTS                 at_row;
 355         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 356         backsql_at_map_rec              *at_map;
 357         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 358
 359         /* bas->bas_oc_id has been bound to bas->bas_sth */
 360         *bas->bas_oc_id = oc_map->bom_id;
 361
 362         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 363                 "executing at_query\n"
 364                 "    \"%s\"\n"
 365                 "    for objectClass \"%s\"\n"
 366                 "    with param oc_id=\"%lu\"\n",
 367                 bas->bas_si->at_query,
 368                 BACKSQL_OC_NAME( oc_map ),
 369                 *bas->bas_oc_id );
 370
 371         rc = SQLExecute( bas->bas_sth );
 372         if ( rc != SQL_SUCCESS ) {
 373                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 374                         "error executing at_query\n"
 375                         "    \"%s\"\n"
 376                         "    for objectClass \"%s\"\n"
 377                         "    with param oc_id=\"%lu\"\n",
 378                         bas->bas_si->at_query,
 379                         BACKSQL_OC_NAME( oc_map ),
 380                         *bas->bas_oc_id );
 381                 backsql_PrintErrors( SQL_NULL_HENV, bas->bas_dbh, bas->bas_sth, rc );
 382                 bas->bas_rc = LDAP_OTHER;
 383                 return BACKSQL_AVL_STOP;
 384         }
 385
 386         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 387         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 388                 const char      *text = NULL;
 389                 struct berval   bv;
 390                 struct berbuf   bb = BB_NULL;
 391
 392                 Debug( LDAP_DEBUG_TRACE,
 393                         "attributeType:\n"
 394                         "\tname=\"%s\"\n"
 395                         "\tsel_expr=\"%s\"\n"
 396                         "\tfrom=\"%s\"\n",
 397                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 398                         at_row.cols[ 2 ] );
 399                 Debug( LDAP_DEBUG_TRACE,
 400                         "\tjoin_where=\"%s\"\n"
 401                         "\tadd_proc=\"%s\"\n"
 402                         "\tdelete_proc=\"%s\"\n",
 403                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 404                         at_row.cols[ 5 ]);
 405                 /* TimesTen */
 406                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 407                                 at_row.cols[ 8 ], 0, 0 );
 408                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 409                                 sizeof( backsql_at_map_rec ) );
 410                 rc = slap_str2ad( at_row.cols[ 0 ],
 411                                 &at_map->bam_ad, &text );
 412                 if ( rc != LDAP_SUCCESS ) {
 413                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 414                                 "attribute \"%s\" for objectClass \"%s\" "
 415                                 "is not defined in schema: %s\n",
 416                                 at_row.cols[ 0 ],
 417                                 BACKSQL_OC_NAME( oc_map ), text );
 418                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 419                         return BACKSQL_AVL_STOP;
 420                 }
 421
 422                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 423                 if ( at_row.value_len[ 8 ] < 0 ) {
 424                         BER_BVZERO( &at_map->bam_sel_expr_u );
 425
 426                 } else {
 427                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 428                                         &at_map->bam_sel_expr_u );
 429                 }
 430
 431                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 432                 backsql_merge_from_clause( &bb, &bv );
 433                 at_map->bam_from_tbls = bb.bb_val;
 434                 if ( at_row.value_len[ 3 ] < 0 ) {
 435                         BER_BVZERO( &at_map->bam_join_where );
 436
 437                 } else {
 438                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 439                                         &at_map->bam_join_where );
 440                 }
 441                 at_map->bam_add_proc = NULL;
 442                 if ( at_row.value_len[ 4 ] > 0 ) {
 443                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 444                 }
 445                 at_map->bam_delete_proc = NULL;
 446                 if ( at_row.value_len[ 5 ] > 0 ) {
 447                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 448                 }
 449                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 450                                 NULL, 0 );
 451                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 452                                 NULL, 0 );
 453                 backsql_make_attr_query( oc_map, at_map );
 454                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 455                         "preconstructed query \"%s\"\n",
 456                         at_map->bam_query, 0, 0 );
 457                 at_map->bam_next = NULL;
 458                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 459                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 460                                         "duplicate attribute \"%s\" "
 461                                         "in objectClass \"%s\" map\n",
 462                                         at_map->bam_ad->ad_cname.bv_val,
 463                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 464                 }
 465
 466                 if ( !BER_BVISNULL( &bas->bas_si->upper_func ) &&
 467                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 468                 {
 469                         struct berbuf   bb = BB_NULL;
 470
 471                         backsql_strfcat( &bb, "bcbc",
 472                                         &bas->bas_si->upper_func,
 473                                         '(' /* ) */ ,
 474                                         &at_map->bam_sel_expr,
 475                                         /* ( */ ')' );
 476                         at_map->bam_sel_expr_u = bb.bb_val;
 477                 }
 478         }
 479         backsql_FreeRow( &at_row );
 480         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 481
 482         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 483                 "autoadding 'objectClass' and 'ref' mappings\n",
 484                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 485
 486         (void)backsql_add_sysmaps( oc_map );
 487
 488         return BACKSQL_AVL_CONTINUE;
 489 }
 490
 491
 492 int
 493 backsql_load_schema_map( backsql_info *si, SQLHDBC dbh )
 494 {
 495         SQLHSTMT                        sth;
 496         RETCODE                         rc;
 497         BACKSQL_ROW_NTS                 oc_row;
 498         unsigned long                   oc_id;
 499         backsql_oc_map_rec              *oc_map;
 500         struct backsql_attr_schema_info bas;
 501
 502         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 503
 504         /*
 505          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 506          */
 507         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( si ) ) {
 508                 rc = backsql_Prepare( dbh, &sth,
 509                                 backsql_check_dn_ru_query, 0 );
 510                 if ( rc == SQL_SUCCESS ) {
 511                         /* Yes, the field exists */
 512                         si->bsql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 513                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 514                                 "in the schema\n", 0, 0, 0 );
 515                 } else {
 516                         /* No such field exists */
 517                         si->bsql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 518                 }
 519
 520                 SQLFreeStmt( sth, SQL_DROP );
 521         }
 522
 523         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 524                         si->oc_query, 0, 0 );
 525
 526         rc = backsql_Prepare( dbh, &sth, si->oc_query, 0 );
 527         if ( rc != SQL_SUCCESS ) {
 528                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 529                         "error preparing oc_query: \"%s\"\n",
 530                         si->oc_query, 0, 0 );
 531                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 532                 return LDAP_OTHER;
 533         }
 534
 535         rc = SQLExecute( sth );
 536         if ( rc != SQL_SUCCESS ) {
 537                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 538                         "error executing oc_query: \n", 0, 0, 0 );
 539                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 540                 return LDAP_OTHER;
 541         }
 542
 543         backsql_BindRowAsStrings( sth, &oc_row );
 544         rc = SQLFetch( sth );
 545         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 546                 int     colnum;
 547
 548                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 549                                 sizeof( backsql_oc_map_rec ) );
 550
 551                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 552
 553                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 554                 if ( oc_map->bom_oc == NULL ) {
 555                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 556                                 "objectClass \"%s\" is not defined in schema\n",
 557                                 oc_row.cols[ 1 ], 0, 0 );
 558                         return LDAP_OTHER;      /* undefined objectClass ? */
 559                 }
 560
 561                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 562                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 563                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 564                         : ch_strdup( oc_row.cols[ 4 ] );
 565
 566                 colnum = 5;
 567                 if ( BACKSQL_CREATE_NEEDS_SELECT( si ) ) {
 568                         colnum = 6;
 569                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 570                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 571                 }
 572                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 573                         : ch_strdup( oc_row.cols[ colnum ] );
 574                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 575                                 NULL, 0 );
 576
 577                 /*
 578                  * FIXME: first attempt to check for offending
 579                  * instructions in {create|delete}_proc
 580                  */
 581
 582                 oc_map->bom_attrs = NULL;
 583                 if ( avl_insert( &si->oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 584                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 585                                         "duplicate objectClass \"%s\" in objectClass map\n",
 586                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 587                         return LDAP_OTHER;
 588                 }
 589                 if ( avl_insert( &si->oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 590                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 591                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 592                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 593                         return LDAP_OTHER;
 594                 }
 595                 oc_id = oc_map->bom_id;
 596                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 597                         "objectClass \"%s\": keytbl=\"%s\" keycol=\"%s\"\n",
 598                         BACKSQL_OC_NAME( oc_map ),
 599                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 600                 if ( oc_map->bom_create_proc ) {
 601                         Debug( LDAP_DEBUG_TRACE, "create_proc=\"%s\"\n",
 602                                 oc_map->bom_create_proc, 0, 0 );
 603                 }
 604                 if ( oc_map->bom_create_keyval ) {
 605                         Debug( LDAP_DEBUG_TRACE, "create_keyval=\"%s\"\n",
 606                                 oc_map->bom_create_keyval, 0, 0 );
 607                 }
 608                 if ( oc_map->bom_delete_proc ) {
 609                         Debug( LDAP_DEBUG_TRACE, "delete_proc=\"%s\"\n",
 610                                 oc_map->bom_delete_proc, 0, 0 );
 611                 }
 612                 Debug( LDAP_DEBUG_TRACE, "expect_return: "
 613                         "add=%d, del=%d; attributes:\n",
 614                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 615                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 616         }
 617
 618         backsql_FreeRow( &oc_row );
 619         SQLFreeStmt( sth, SQL_DROP );
 620
 621         /* prepare for attribute fetching */
 622         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 623                         si->at_query, 0, 0 );
 624
 625         rc = backsql_Prepare( dbh, &sth, si->at_query, 0 );
 626         if ( rc != SQL_SUCCESS ) {
 627                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 628                         "error preparing at_query: \"%s\"\n",
 629                         si->at_query, 0, 0 );
 630                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 631                 return LDAP_OTHER;
 632         }
 633
 634         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 635         if ( rc != SQL_SUCCESS ) {
 636                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 637                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 638                 backsql_PrintErrors( si->db_env, dbh, sth, rc );
 639                 SQLFreeStmt( sth, SQL_DROP );
 640                 return LDAP_OTHER;
 641         }
 642
 643         bas.bas_si = si;
 644         bas.bas_dbh = dbh;
 645         bas.bas_sth = sth;
 646         bas.bas_oc_id = &oc_id;
 647         bas.bas_rc = LDAP_SUCCESS;
 648
 649         (void)avl_apply( si->oc_by_oc, backsql_oc_get_attr_mapping,
 650                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 651
 652         SQLFreeStmt( sth, SQL_DROP );
 653
 654         si->bsql_flags |= BSQLF_SCHEMA_LOADED;
 655
 656         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 657
 658         return bas.bas_rc;
 659 }
 660
 661 backsql_oc_map_rec *
 662 backsql_oc2oc( backsql_info *si, ObjectClass *oc )
 663 {
 664         backsql_oc_map_rec      tmp, *res;
 665
 666 #ifdef BACKSQL_TRACE
 667         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 668                 "searching for objectclass with name=\"%s\"\n",
 669                 oc->soc_cname.bv_val, 0, 0 );
 670 #endif /* BACKSQL_TRACE */
 671
 672         tmp.bom_oc = oc;
 673         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 674 #ifdef BACKSQL_TRACE
 675         if ( res != NULL ) {
 676                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 677                         "found name=\"%s\", id=%d\n",
 678                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 679         } else {
 680                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 681                         "not found\n", 0, 0, 0 );
 682         }
 683 #endif /* BACKSQL_TRACE */
 684
 685         return res;
 686 }
 687
 688 backsql_oc_map_rec *
 689 backsql_name2oc( backsql_info *si, struct berval *oc_name )
 690 {
 691         backsql_oc_map_rec      tmp, *res;
 692
 693 #ifdef BACKSQL_TRACE
 694         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 695                 "searching for objectclass with name=\"%s\"\n",
 696                 oc_name->bv_val, 0, 0 );
 697 #endif /* BACKSQL_TRACE */
 698
 699         tmp.bom_oc = oc_bvfind( oc_name );
 700         if ( tmp.bom_oc == NULL ) {
 701                 return NULL;
 702         }
 703
 704         res = (backsql_oc_map_rec *)avl_find( si->oc_by_oc, &tmp, backsql_cmp_oc );
 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_oc_map_rec *
 720 backsql_id2oc( backsql_info *si, unsigned long id )
 721 {
 722         backsql_oc_map_rec      tmp, *res;
 723
 724 #ifdef BACKSQL_TRACE
 725         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 726                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 727 #endif /* BACKSQL_TRACE */
 728
 729         tmp.bom_id = id;
 730         res = (backsql_oc_map_rec *)avl_find( si->oc_by_id, &tmp,
 731                         backsql_cmp_oc_id );
 732
 733 #ifdef BACKSQL_TRACE
 734         if ( res != NULL ) {
 735                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 736                         "found name=\"%s\", id=%d\n",
 737                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 738         } else {
 739                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 740                         "not found\n", 0, 0, 0 );
 741         }
 742 #endif /* BACKSQL_TRACE */
 743
 744         return res;
 745 }
 746
 747 backsql_at_map_rec *
 748 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 749 {
 750         backsql_at_map_rec      tmp, *res;
 751
 752 #ifdef BACKSQL_TRACE
 753         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 754                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 755                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 756 #endif /* BACKSQL_TRACE */
 757
 758         tmp.bam_ad = ad;
 759         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 760                         backsql_cmp_attr );
 761
 762 #ifdef BACKSQL_TRACE
 763         if ( res != NULL ) {
 764                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 765                         "found name=\"%s\", sel_expr=\"%s\"\n",
 766                         res->bam_ad->ad_cname.bv_val,
 767                         res->bam_sel_expr.bv_val, 0 );
 768         } else {
 769                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 770                         "not found\n", 0, 0, 0 );
 771         }
 772 #endif /* BACKSQL_TRACE */
 773
 774         return res;
 775 }
 776
 777 /* attributeType inheritance */
 778 struct supad2at_t {
 779         backsql_at_map_rec      **ret;
 780         AttributeDescription    *ad;
 781         unsigned                n;
 782 };
 783
 784 #define SUPAD2AT_STOP   (-1)
 785
 786 static int
 787 supad2at_f( void *v_at, void *v_arg )
 788 {
 789         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 790         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 791
 792         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 793                 backsql_at_map_rec      **ret;
 794                 unsigned                i;
 795
 796                 /* if already listed, holler! (should never happen) */
 797                 if ( va->ret ) {
 798                         for ( i = 0; i < va->n; i++ ) {
 799                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 800                                         break;
 801                                 }
 802                         }
 803
 804                         if ( i < va->n ) {
 805                                 return 0;
 806                         }
 807                 }
 808
 809                 ret = ch_realloc( va->ret,
 810                                 sizeof( backsql_at_map_rec *) * ( va->n + 2 ) );
 811                 if ( ret == NULL ) {
 812                         ch_free( va->ret );
 813                         return SUPAD2AT_STOP;
 814                 }
 815
 816                 ret[ va->n ] = at;
 817                 va->n++;
 818                 ret[ va->n ] = NULL;
 819                 va->ret = ret;
 820         }
 821
 822         return 0;
 823 }
 824
 825 /*
 826  * stores in *pret a NULL terminated array of pointers
 827  * to backsql_at_map_rec whose attributeType is supad->ad_type
 828  * or derived from it
 829  */
 830 int
 831 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 832                 backsql_at_map_rec ***pret )
 833 {
 834         struct supad2at_t       va;
 835         int                     rc;
 836
 837         assert( objclass );
 838         assert( supad );
 839         assert( pret );
 840
 841         *pret = NULL;
 842
 843         va.ret = NULL;
 844         va.ad = supad;
 845         va.n = 0;
 846
 847         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 848                         SUPAD2AT_STOP, AVL_INORDER );
 849         if ( rc == SUPAD2AT_STOP ) {
 850                 return -1;
 851         }
 852
 853         *pret = va.ret;
 854
 855         return 0;
 856 }
 857
 858 static void
 859 backsql_free_attr( void *v_at )
 860 {
 861         backsql_at_map_rec      *at = v_at;
 862
 863         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 864                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 865         ch_free( at->bam_sel_expr.bv_val );
 866         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 867                 ch_free( at->bam_from_tbls.bv_val );
 868         }
 869         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 870                 ch_free( at->bam_join_where.bv_val );
 871         }
 872         if ( at->bam_add_proc != NULL ) {
 873                 ch_free( at->bam_add_proc );
 874         }
 875         if ( at->bam_delete_proc != NULL ) {
 876                 ch_free( at->bam_delete_proc );
 877         }
 878         if ( at->bam_query ) {
 879                 ch_free( at->bam_query );
 880         }
 881
 882         /* TimesTen */
 883         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 884                 ch_free( at->bam_sel_expr_u.bv_val );
 885         }
 886
 887         if ( at->bam_next ) {
 888                 backsql_free_attr( at->bam_next );
 889         }
 890
 891         ch_free( at );
 892
 893         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 894 }
 895
 896 static void
 897 backsql_free_oc( void *v_oc )
 898 {
 899         backsql_oc_map_rec      *oc = v_oc;
 900
 901         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 902                         BACKSQL_OC_NAME( oc ), 0, 0 );
 903         avl_free( oc->bom_attrs, backsql_free_attr );
 904         ch_free( oc->bom_keytbl.bv_val );
 905         ch_free( oc->bom_keycol.bv_val );
 906         if ( oc->bom_create_proc != NULL ) {
 907                 ch_free( oc->bom_create_proc );
 908         }
 909         if ( oc->bom_create_keyval != NULL ) {
 910                 ch_free( oc->bom_create_keyval );
 911         }
 912         if ( oc->bom_delete_proc != NULL ) {
 913                 ch_free( oc->bom_delete_proc );
 914         }
 915         ch_free( oc );
 916
 917         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 918 }
 919
 920 int
 921 backsql_destroy_schema_map( backsql_info *si )
 922 {
 923         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 924         avl_free( si->oc_by_oc, 0 );
 925         avl_free( si->oc_by_id, backsql_free_oc );
 926         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 927         return 0;
 928 }
 929
 930 #endif /* SLAPD_SQL */
 931