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 #include <stdio.h>
  24 #include <sys/types.h>
  25 #include "ac/string.h"
  26
  27 #include "slap.h"
  28 #include "proto-sql.h"
  29
  30 #define BACKSQL_DUPLICATE       (-1)
  31
  32 /* NOTE: by default, cannot just compare pointers because
  33  * objectClass/attributeType order would be machine-dependent
  34  * (and tests would fail!); however, if you don't want to run
  35  * tests, or see attributeTypes written in the same order
  36  * they are defined, define */
  37 /* #undef BACKSQL_USE_PTR_CMP */
  38
  39 /*
  40  * Uses the pointer to the ObjectClass structure
  41  */
  42 static int
  43 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  44 {
  45         const backsql_oc_map_rec        *m1 = v_m1,
  46                                         *m2 = v_m2;
  47
  48 #ifdef BACKSQL_USE_PTR_CMP
  49         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  50 #else /* ! BACKSQL_USE_PTR_CMP */
  51         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  52 #endif /* ! BACKSQL_USE_PTR_CMP */
  53 }
  54
  55 static int
  56 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  57 {
  58         const backsql_oc_map_rec        *m1 = v_m1,
  59                                         *m2 = v_m2;
  60
  61         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  62 }
  63
  64 /*
  65  * Uses the pointer to the AttributeDescription structure
  66  */
  67 static int
  68 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  69 {
  70         const backsql_at_map_rec        *m1 = v_m1,
  71                                         *m2 = v_m2;
  72
  73 #ifdef BACKSQL_USE_PTR_CMP
  74         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  75 #else /* ! BACKSQL_USE_PTR_CMP */
  76         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  77 #endif /* ! BACKSQL_USE_PTR_CMP */
  78 }
  79
  80 int
  81 backsql_dup_attr( void *v_m1, void *v_m2 )
  82 {
  83         backsql_at_map_rec              *m1 = v_m1,
  84                                         *m2 = v_m2;
  85
  86         assert( m1->bam_ad == m2->bam_ad );
  87
  88         /* duplicate definitions of attributeTypes are appended;
  89          * this allows to define multiple rules for the same
  90          * attributeType.  Use with care! */
  91         for ( ; m1->bam_next ; m1 = m1->bam_next );
  92         m1->bam_next = m2;
  93         m2->bam_next = NULL;
  94
  95         return BACKSQL_DUPLICATE;
  96 }
  97
  98 static int
  99 backsql_make_attr_query(
 100         backsql_oc_map_rec      *oc_map,
 101         backsql_at_map_rec      *at_map )
 102 {
 103         struct berbuf   bb = BB_NULL;
 104
 105 #ifdef BACKSQL_ALIASING_QUOTE
 106         backsql_strfcat( &bb, "lblcbclblbcbl",
 107                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 108                         &at_map->bam_sel_expr,
 109                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 110                         BACKSQL_ALIASING_QUOTE,
 111                         &at_map->bam_ad->ad_cname,
 112                         BACKSQL_ALIASING_QUOTE,
 113                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 114                         &at_map->bam_from_tbls,
 115                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 116                         &oc_map->bom_keytbl,
 117                         '.',
 118                         &oc_map->bom_keycol,
 119                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 120 #else /* ! BACKSQL_ALIASING_QUOTE */
 121         backsql_strfcat( &bb, "lblblblbcbl",
 122                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 123                         &at_map->bam_sel_expr,
 124                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 125                         &at_map->bam_ad->ad_cname,
 126                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 127                         &at_map->bam_from_tbls,
 128                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 129                         &oc_map->bom_keytbl,
 130                         '.',
 131                         &oc_map->bom_keycol,
 132                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 133 #endif /* ! BACKSQL_ALIASING_QUOTE */
 134
 135         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 136                 backsql_strfcat( &bb, "lb",
 137                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 138                                 &at_map->bam_join_where );
 139         }
 140
 141 #ifdef BACKSQL_ALIASING_QUOTE
 142         backsql_strfcat( &bb, "lcbc",
 143                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 144                         BACKSQL_ALIASING_QUOTE,
 145                         &at_map->bam_sel_expr,
 146                         BACKSQL_ALIASING_QUOTE );
 147 #else /* ! BACKSQL_ALIASING_QUOTE */
 148         backsql_strfcat( &bb, "lb",
 149                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 150                         &at_map->bam_sel_expr );
 151 #endif /* ! BACKSQL_ALIASING_QUOTE */
 152
 153         at_map->bam_query = bb.bb_val.bv_val;
 154
 155         return 0;
 156 }
 157
 158 static int
 159 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 160 {
 161         backsql_at_map_rec      *at_map;
 162         char                    s[] = "+9223372036854775807L";
 163         struct berval           sbv;
 164         struct berbuf           bb;
 165
 166         sbv.bv_val = s;
 167         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 168         sbv.bv_len = strlen( s );
 169
 170         /* extra objectClasses */
 171         at_map = (backsql_at_map_rec *)ch_calloc(1,
 172                         sizeof( backsql_at_map_rec ) );
 173         at_map->bam_ad = slap_schema.si_ad_objectClass;
 174         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 175                         &at_map->bam_sel_expr );
 176         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 177                         &at_map->bam_from_tbls );
 178
 179         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 180         bb.bb_val = at_map->bam_from_tbls;
 181         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 182         at_map->bam_from_tbls = bb.bb_val;
 183
 184         BER_BVZERO( &bb.bb_val );
 185         bb.bb_len = 0;
 186         backsql_strfcat( &bb, "lbcblb",
 187                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 188                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 189                         &oc_map->bom_keytbl,
 190                         '.',
 191                         &oc_map->bom_keycol,
 192                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 193                                 " and ldap_entries.oc_map_id=",
 194                         &sbv );
 195         at_map->bam_join_where = bb.bb_val;
 196
 197         at_map->bam_oc = oc_map->bom_oc;
 198
 199         at_map->bam_add_proc = NULL;
 200         {
 201                 char    tmp[] =
 202                         "INSERT INTO ldap_entry_objclasses "
 203                         "(entry_id,oc_name) VALUES "
 204                         "((SELECT id FROM ldap_entries "
 205                         "WHERE oc_map_id="
 206                         "18446744073709551615UL "       /* 64 bit ULONG */
 207                         "AND keyval=?),?)";
 208                 snprintf( tmp, sizeof(tmp),
 209                         "INSERT INTO ldap_entry_objclasses "
 210                         "(entry_id,oc_name) VALUES "
 211                         "((SELECT id FROM ldap_entries "
 212                         "WHERE oc_map_id=%lu "
 213                         "AND keyval=?),?)", oc_map->bom_id );
 214                 at_map->bam_add_proc = ch_strdup( tmp );
 215         }
 216
 217         at_map->bam_delete_proc = NULL;
 218         {
 219                 char    tmp[] =
 220                         "DELETE FROM ldap_entry_objclasses "
 221                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 222                         "WHERE oc_map_id="
 223                         "18446744073709551615UL "       /* 64 bit ULONG */
 224                         "AND keyval=?) AND oc_name=?";
 225                 snprintf( tmp, sizeof(tmp),
 226                         "DELETE FROM ldap_entry_objclasses "
 227                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 228                         "WHERE oc_map_id=%lu"
 229                         "AND keyval=?) AND oc_name=?",
 230                         oc_map->bom_id );
 231                 at_map->bam_delete_proc = ch_strdup( tmp );
 232         }
 233
 234         at_map->bam_param_order = 0;
 235         at_map->bam_expect_return = 0;
 236         at_map->bam_next = NULL;
 237
 238         backsql_make_attr_query( oc_map, at_map );
 239         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 240                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 241                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 242                                 at_map->bam_ad->ad_cname.bv_val,
 243                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 244         }
 245
 246         /* FIXME: we need to correct the objectClass join_where
 247          * after the attribute query is built */
 248         ch_free( at_map->bam_join_where.bv_val );
 249         BER_BVZERO( &bb.bb_val );
 250         bb.bb_len = 0;
 251         backsql_strfcat( &bb, "lbcblb",
 252                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 253                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 254                         &oc_map->bom_keytbl,
 255                         '.',
 256                         &oc_map->bom_keycol,
 257                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 258                                 " AND ldap_entries.oc_map_id=",
 259                         &sbv );
 260         at_map->bam_join_where = bb.bb_val;
 261
 262         /* referral attribute */
 263         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 264                         sizeof( backsql_at_map_rec ) );
 265         at_map->bam_ad = slap_schema.si_ad_ref;
 266         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 267         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 268
 269         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 270         bb.bb_val = at_map->bam_from_tbls;
 271         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 272         at_map->bam_from_tbls = bb.bb_val;
 273
 274         BER_BVZERO( &bb.bb_val );
 275         bb.bb_len = 0;
 276         backsql_strfcat( &bb, "lbcblb",
 277                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=" ),
 278                                 "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=",
 279                         &oc_map->bom_keytbl,
 280                         '.',
 281                         &oc_map->bom_keycol,
 282                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 283                                 " AND ldap_entries.oc_map_id=",
 284                         &sbv );
 285
 286         at_map->bam_join_where = bb.bb_val;
 287
 288         at_map->bam_oc = NULL;
 289
 290         at_map->bam_add_proc = NULL;
 291         {
 292                 char    tmp[] =
 293                         "INSERT INTO ldap_referrals "
 294                         "(entry_id,url) VALUES "
 295                         "((SELECT id FROM ldap_entries "
 296                         "WHERE oc_map_id="
 297                         "18446744073709551615UL "       /* 64 bit ULONG */
 298                         "AND keyval=?),?)";
 299                 snprintf( tmp, sizeof(tmp),
 300                         "INSERT INTO ldap_referrals "
 301                         "(entry_id,url) VALUES "
 302                         "((SELECT id FROM ldap_entries "
 303                         "WHERE oc_map_id=%lu "
 304                         "AND keyval=?),?)", oc_map->bom_id );
 305                 at_map->bam_add_proc = ch_strdup( tmp );
 306         }
 307
 308         at_map->bam_delete_proc = NULL;
 309         {
 310                 char    tmp[] =
 311                         "DELETE FROM ldap_referrals "
 312                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 313                         "WHERE oc_map_id="
 314                         "18446744073709551615UL "       /* 64 bit ULONG */
 315                         "AND keyval=?) and url=?";
 316                 snprintf( tmp, sizeof(tmp),
 317                         "DELETE FROM ldap_referrals "
 318                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 319                         "WHERE oc_map_id=%lu"
 320                         "AND keyval=?) and url=?",
 321                         oc_map->bom_id );
 322                 at_map->bam_delete_proc = ch_strdup( tmp );
 323         }
 324
 325         at_map->bam_param_order = 0;
 326         at_map->bam_expect_return = 0;
 327         at_map->bam_next = NULL;
 328
 329         backsql_make_attr_query( oc_map, at_map );
 330         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 331                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 332                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 333                                 at_map->bam_ad->ad_cname.bv_val,
 334                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 335         }
 336
 337         return 1;
 338 }
 339
 340 struct backsql_attr_schema_info {
 341         backsql_info    *bas_bi;
 342         SQLHDBC         bas_dbh;
 343         SQLHSTMT        bas_sth;
 344         unsigned long   *bas_oc_id;
 345         int             bas_rc;
 346 };
 347
 348 static int
 349 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 350 {
 351         RETCODE                         rc;
 352         BACKSQL_ROW_NTS                 at_row;
 353         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 354         backsql_at_map_rec              *at_map;
 355         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 356
 357         /* bas->bas_oc_id has been bound to bas->bas_sth */
 358         *bas->bas_oc_id = oc_map->bom_id;
 359
 360         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 361                 "executing at_query\n"
 362                 "    \"%s\"\n"
 363                 "    for objectClass \"%s\"\n"
 364                 "    with param oc_id=\"%lu\"\n",
 365                 bas->bas_bi->sql_at_query,
 366                 BACKSQL_OC_NAME( oc_map ),
 367                 *bas->bas_oc_id );
 368
 369         rc = SQLExecute( bas->bas_sth );
 370         if ( rc != SQL_SUCCESS ) {
 371                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 372                         "error executing at_query\n"
 373                         "    \"%s\"\n"
 374                         "    for objectClass \"%s\"\n"
 375                         "    with param oc_id=\"%lu\"\n",
 376                         bas->bas_bi->sql_at_query,
 377                         BACKSQL_OC_NAME( oc_map ),
 378                         *bas->bas_oc_id );
 379                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 380                                 bas->bas_dbh, bas->bas_sth, rc );
 381                 bas->bas_rc = LDAP_OTHER;
 382                 return BACKSQL_AVL_STOP;
 383         }
 384
 385         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 386         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 387                 const char      *text = NULL;
 388                 char            *next = 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                                 &next, 0 );
 451                 if ( next == at_row.cols[ 6 ] || next[0] != '\0' ) {
 452                         /* error */
 453                 }
 454                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 455                                 &next, 0 );
 456                 if ( next == at_row.cols[ 7 ] || next[0] != '\0' ) {
 457                         /* error */
 458                 }
 459                 backsql_make_attr_query( oc_map, at_map );
 460                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 461                         "preconstructed query \"%s\"\n",
 462                         at_map->bam_query, 0, 0 );
 463                 at_map->bam_next = NULL;
 464                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 465                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 466                                         "duplicate attribute \"%s\" "
 467                                         "in objectClass \"%s\" map\n",
 468                                         at_map->bam_ad->ad_cname.bv_val,
 469                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 470                 }
 471
 472                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 473                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 474                 {
 475                         struct berbuf   bb = BB_NULL;
 476
 477                         backsql_strfcat( &bb, "bcbc",
 478                                         &bas->bas_bi->sql_upper_func,
 479                                         '(' /* ) */ ,
 480                                         &at_map->bam_sel_expr,
 481                                         /* ( */ ')' );
 482                         at_map->bam_sel_expr_u = bb.bb_val;
 483                 }
 484         }
 485         backsql_FreeRow( &at_row );
 486         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 487
 488         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 489                 "autoadding 'objectClass' and 'ref' mappings\n",
 490                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 491
 492         (void)backsql_add_sysmaps( oc_map );
 493
 494         return BACKSQL_AVL_CONTINUE;
 495 }
 496
 497
 498 int
 499 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 500 {
 501         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 502         RETCODE                         rc;
 503         BACKSQL_ROW_NTS                 oc_row;
 504         unsigned long                   oc_id;
 505         backsql_oc_map_rec              *oc_map;
 506         struct backsql_attr_schema_info bas;
 507
 508         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 509
 510         /*
 511          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 512          */
 513         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 514                 rc = backsql_Prepare( dbh, &sth,
 515                                 backsql_check_dn_ru_query, 0 );
 516                 if ( rc == SQL_SUCCESS ) {
 517                         /* Yes, the field exists */
 518                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 519                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 520                                 "in the schema\n", 0, 0, 0 );
 521                 } else {
 522                         /* No such field exists */
 523                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 524                 }
 525
 526                 SQLFreeStmt( sth, SQL_DROP );
 527         }
 528
 529         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 530                         bi->sql_oc_query, 0, 0 );
 531
 532         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 533         if ( rc != SQL_SUCCESS ) {
 534                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 535                         "error preparing oc_query: \"%s\"\n",
 536                         bi->sql_oc_query, 0, 0 );
 537                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 538                 return LDAP_OTHER;
 539         }
 540
 541         rc = SQLExecute( sth );
 542         if ( rc != SQL_SUCCESS ) {
 543                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 544                         "error executing oc_query: \n", 0, 0, 0 );
 545                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 546                 return LDAP_OTHER;
 547         }
 548
 549         backsql_BindRowAsStrings( sth, &oc_row );
 550         rc = SQLFetch( sth );
 551         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 552                 int     colnum;
 553
 554                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 555                                 sizeof( backsql_oc_map_rec ) );
 556
 557                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 558
 559                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 560                 if ( oc_map->bom_oc == NULL ) {
 561                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 562                                 "objectClass \"%s\" is not defined in schema\n",
 563                                 oc_row.cols[ 1 ], 0, 0 );
 564                         return LDAP_OTHER;      /* undefined objectClass ? */
 565                 }
 566
 567                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 568                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 569                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 570                         : ch_strdup( oc_row.cols[ 4 ] );
 571
 572                 colnum = 5;
 573                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 574                         colnum = 6;
 575                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 576                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 577                 }
 578                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 579                         : ch_strdup( oc_row.cols[ colnum ] );
 580                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 581                                 NULL, 0 );
 582
 583                 colnum += 2;
 584                 if ( ( oc_row.ncols > colnum ) &&
 585                                 ( oc_row.value_len[ colnum ] > 0 ) )
 586                 {
 587                         const char      *text;
 588
 589                         oc_map->bom_create_hint = NULL;
 590                         rc = slap_str2ad( oc_row.cols[ colnum ],
 591                                         &oc_map->bom_create_hint, &text );
 592                         if ( rc != SQL_SUCCESS ) {
 593                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 594                                                 "error matching "
 595                                                 "AttributeDescription %s "
 596                                                 "in create_hint: %s (%d)\n",
 597                                                 oc_row.cols[ colnum ],
 598                                                 text, rc );
 599                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 600                                                 sth, rc );
 601                                 return LDAP_OTHER;
 602                         }
 603                 }
 604
 605                 /*
 606                  * FIXME: first attempt to check for offending
 607                  * instructions in {create|delete}_proc
 608                  */
 609
 610                 oc_map->bom_attrs = NULL;
 611                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 612                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 613                                         "duplicate objectClass \"%s\" in objectClass map\n",
 614                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 615                         return LDAP_OTHER;
 616                 }
 617                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 618                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 619                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 620                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 621                         return LDAP_OTHER;
 622                 }
 623                 oc_id = oc_map->bom_id;
 624                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 625                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 626                         BACKSQL_OC_NAME( oc_map ),
 627                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 628                 if ( oc_map->bom_create_proc ) {
 629                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 630                                 oc_map->bom_create_proc, 0, 0 );
 631                 }
 632                 if ( oc_map->bom_create_keyval ) {
 633                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 634                                 oc_map->bom_create_keyval, 0, 0 );
 635                 }
 636                 if ( oc_map->bom_create_hint ) {
 637                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 638                                 oc_map->bom_create_hint->ad_cname.bv_val,
 639                                 0, 0 );
 640                 }
 641                 if ( oc_map->bom_delete_proc ) {
 642                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 643                                 oc_map->bom_delete_proc, 0, 0 );
 644                 }
 645                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 646                         "add=%d, del=%d; attributes:\n",
 647                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 648                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 649         }
 650
 651         backsql_FreeRow( &oc_row );
 652         SQLFreeStmt( sth, SQL_DROP );
 653
 654         /* prepare for attribute fetching */
 655         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 656                         bi->sql_at_query, 0, 0 );
 657
 658         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 659         if ( rc != SQL_SUCCESS ) {
 660                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 661                         "error preparing at_query: \"%s\"\n",
 662                         bi->sql_at_query, 0, 0 );
 663                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 664                 return LDAP_OTHER;
 665         }
 666
 667         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 668         if ( rc != SQL_SUCCESS ) {
 669                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 670                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 671                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 672                 SQLFreeStmt( sth, SQL_DROP );
 673                 return LDAP_OTHER;
 674         }
 675
 676         bas.bas_bi = bi;
 677         bas.bas_dbh = dbh;
 678         bas.bas_sth = sth;
 679         bas.bas_oc_id = &oc_id;
 680         bas.bas_rc = LDAP_SUCCESS;
 681
 682         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 683                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 684
 685         SQLFreeStmt( sth, SQL_DROP );
 686
 687         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 688
 689         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 690
 691         return bas.bas_rc;
 692 }
 693
 694 backsql_oc_map_rec *
 695 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 696 {
 697         backsql_oc_map_rec      tmp, *res;
 698
 699 #ifdef BACKSQL_TRACE
 700         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 701                 "searching for objectclass with name=\"%s\"\n",
 702                 oc->soc_cname.bv_val, 0, 0 );
 703 #endif /* BACKSQL_TRACE */
 704
 705         tmp.bom_oc = oc;
 706         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 707 #ifdef BACKSQL_TRACE
 708         if ( res != NULL ) {
 709                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 710                         "found name=\"%s\", id=%d\n",
 711                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 712         } else {
 713                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 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_name2oc( backsql_info *bi, struct berval *oc_name )
 723 {
 724         backsql_oc_map_rec      tmp, *res;
 725
 726 #ifdef BACKSQL_TRACE
 727         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 728                 "searching for objectclass with name=\"%s\"\n",
 729                 oc_name->bv_val, 0, 0 );
 730 #endif /* BACKSQL_TRACE */
 731
 732         tmp.bom_oc = oc_bvfind( oc_name );
 733         if ( tmp.bom_oc == NULL ) {
 734                 return NULL;
 735         }
 736
 737         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 738 #ifdef BACKSQL_TRACE
 739         if ( res != NULL ) {
 740                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 741                         "found name=\"%s\", id=%d\n",
 742                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 743         } else {
 744                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 745                         "not found\n", 0, 0, 0 );
 746         }
 747 #endif /* BACKSQL_TRACE */
 748
 749         return res;
 750 }
 751
 752 backsql_oc_map_rec *
 753 backsql_id2oc( backsql_info *bi, unsigned long id )
 754 {
 755         backsql_oc_map_rec      tmp, *res;
 756
 757 #ifdef BACKSQL_TRACE
 758         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 759                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 760 #endif /* BACKSQL_TRACE */
 761
 762         tmp.bom_id = id;
 763         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 764                         backsql_cmp_oc_id );
 765
 766 #ifdef BACKSQL_TRACE
 767         if ( res != NULL ) {
 768                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 769                         "found name=\"%s\", id=%d\n",
 770                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 771         } else {
 772                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 773                         "not found\n", 0, 0, 0 );
 774         }
 775 #endif /* BACKSQL_TRACE */
 776
 777         return res;
 778 }
 779
 780 backsql_at_map_rec *
 781 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 782 {
 783         backsql_at_map_rec      tmp, *res;
 784
 785 #ifdef BACKSQL_TRACE
 786         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 787                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 788                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 789 #endif /* BACKSQL_TRACE */
 790
 791         tmp.bam_ad = ad;
 792         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 793                         backsql_cmp_attr );
 794
 795 #ifdef BACKSQL_TRACE
 796         if ( res != NULL ) {
 797                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 798                         "found name=\"%s\", sel_expr=\"%s\"\n",
 799                         res->bam_ad->ad_cname.bv_val,
 800                         res->bam_sel_expr.bv_val, 0 );
 801         } else {
 802                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 803                         "not found\n", 0, 0, 0 );
 804         }
 805 #endif /* BACKSQL_TRACE */
 806
 807         return res;
 808 }
 809
 810 /* attributeType inheritance */
 811 struct supad2at_t {
 812         backsql_at_map_rec      **ret;
 813         AttributeDescription    *ad;
 814         unsigned                n;
 815 };
 816
 817 #define SUPAD2AT_STOP   (-1)
 818
 819 static int
 820 supad2at_f( void *v_at, void *v_arg )
 821 {
 822         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 823         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 824
 825         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 826                 backsql_at_map_rec      **ret;
 827                 unsigned                i;
 828
 829                 /* if already listed, holler! (should never happen) */
 830                 if ( va->ret ) {
 831                         for ( i = 0; i < va->n; i++ ) {
 832                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 833                                         break;
 834                                 }
 835                         }
 836
 837                         if ( i < va->n ) {
 838                                 return 0;
 839                         }
 840                 }
 841
 842                 ret = ch_realloc( va->ret,
 843                                 sizeof( backsql_at_map_rec *) * ( va->n + 2 ) );
 844                 if ( ret == NULL ) {
 845                         ch_free( va->ret );
 846                         return SUPAD2AT_STOP;
 847                 }
 848
 849                 ret[ va->n ] = at;
 850                 va->n++;
 851                 ret[ va->n ] = NULL;
 852                 va->ret = ret;
 853         }
 854
 855         return 0;
 856 }
 857
 858 /*
 859  * stores in *pret a NULL terminated array of pointers
 860  * to backsql_at_map_rec whose attributeType is supad->ad_type
 861  * or derived from it
 862  */
 863 int
 864 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 865                 backsql_at_map_rec ***pret )
 866 {
 867         struct supad2at_t       va;
 868         int                     rc;
 869
 870         assert( objclass );
 871         assert( supad );
 872         assert( pret );
 873
 874         *pret = NULL;
 875
 876         va.ret = NULL;
 877         va.ad = supad;
 878         va.n = 0;
 879
 880         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 881                         SUPAD2AT_STOP, AVL_INORDER );
 882         if ( rc == SUPAD2AT_STOP ) {
 883                 return -1;
 884         }
 885
 886         *pret = va.ret;
 887
 888         return 0;
 889 }
 890
 891 static void
 892 backsql_free_attr( void *v_at )
 893 {
 894         backsql_at_map_rec      *at = v_at;
 895
 896         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 897                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 898         ch_free( at->bam_sel_expr.bv_val );
 899         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 900                 ch_free( at->bam_from_tbls.bv_val );
 901         }
 902         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 903                 ch_free( at->bam_join_where.bv_val );
 904         }
 905         if ( at->bam_add_proc != NULL ) {
 906                 ch_free( at->bam_add_proc );
 907         }
 908         if ( at->bam_delete_proc != NULL ) {
 909                 ch_free( at->bam_delete_proc );
 910         }
 911         if ( at->bam_query != NULL ) {
 912                 ch_free( at->bam_query );
 913         }
 914
 915         /* TimesTen */
 916         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 917                 ch_free( at->bam_sel_expr_u.bv_val );
 918         }
 919
 920         if ( at->bam_next ) {
 921                 backsql_free_attr( at->bam_next );
 922         }
 923
 924         ch_free( at );
 925
 926         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 927 }
 928
 929 static void
 930 backsql_free_oc( void *v_oc )
 931 {
 932         backsql_oc_map_rec      *oc = v_oc;
 933
 934         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 935                         BACKSQL_OC_NAME( oc ), 0, 0 );
 936         avl_free( oc->bom_attrs, backsql_free_attr );
 937         ch_free( oc->bom_keytbl.bv_val );
 938         ch_free( oc->bom_keycol.bv_val );
 939         if ( oc->bom_create_proc != NULL ) {
 940                 ch_free( oc->bom_create_proc );
 941         }
 942         if ( oc->bom_create_keyval != NULL ) {
 943                 ch_free( oc->bom_create_keyval );
 944         }
 945         if ( oc->bom_delete_proc != NULL ) {
 946                 ch_free( oc->bom_delete_proc );
 947         }
 948         ch_free( oc );
 949
 950         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 951 }
 952
 953 int
 954 backsql_destroy_schema_map( backsql_info *bi )
 955 {
 956         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 957         avl_free( bi->sql_oc_by_oc, 0 );
 958         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 959         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 960         return 0;
 961 }
 962