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 1999-2010 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 "lutil.h"
  31 #include "slap.h"
  32 #include "proto-sql.h"
  33
  34 #define BACKSQL_DUPLICATE       (-1)
  35
  36 /* NOTE: by default, cannot just compare pointers because
  37  * objectClass/attributeType order would be machine-dependent
  38  * (and tests would fail!); however, if you don't want to run
  39  * tests, or see attributeTypes written in the same order
  40  * they are defined, define */
  41 /* #undef BACKSQL_USE_PTR_CMP */
  42
  43 /*
  44  * Uses the pointer to the ObjectClass structure
  45  */
  46 static int
  47 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  48 {
  49         const backsql_oc_map_rec        *m1 = v_m1,
  50                                         *m2 = v_m2;
  51
  52 #ifdef BACKSQL_USE_PTR_CMP
  53         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  54 #else /* ! BACKSQL_USE_PTR_CMP */
  55         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  56 #endif /* ! BACKSQL_USE_PTR_CMP */
  57 }
  58
  59 static int
  60 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  61 {
  62         const backsql_oc_map_rec        *m1 = v_m1,
  63                                         *m2 = v_m2;
  64
  65         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  66 }
  67
  68 /*
  69  * Uses the pointer to the AttributeDescription structure
  70  */
  71 static int
  72 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  73 {
  74         const backsql_at_map_rec        *m1 = v_m1,
  75                                         *m2 = v_m2;
  76
  77         if ( slap_ad_is_binary( m1->bam_ad ) || slap_ad_is_binary( m2->bam_ad ) ) {
  78 #ifdef BACKSQL_USE_PTR_CMP
  79                 return SLAP_PTRCMP( m1->bam_ad->ad_type, m2->bam_ad->ad_type );
  80 #else /* ! BACKSQL_USE_PTR_CMP */
  81                 return ber_bvcmp( &m1->bam_ad->ad_type->sat_cname, &m2->bam_ad->ad_type->sat_cname );
  82 #endif /* ! BACKSQL_USE_PTR_CMP */
  83         }
  84
  85 #ifdef BACKSQL_USE_PTR_CMP
  86         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  87 #else /* ! BACKSQL_USE_PTR_CMP */
  88         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  89 #endif /* ! BACKSQL_USE_PTR_CMP */
  90 }
  91
  92 int
  93 backsql_dup_attr( void *v_m1, void *v_m2 )
  94 {
  95         backsql_at_map_rec              *m1 = v_m1,
  96                                         *m2 = v_m2;
  97
  98         if ( slap_ad_is_binary( m1->bam_ad ) || slap_ad_is_binary( m2->bam_ad ) ) {
  99 #ifdef BACKSQL_USE_PTR_CMP
 100                 assert( m1->bam_ad->ad_type == m2->bam_ad->ad_type );
 101 #else /* ! BACKSQL_USE_PTR_CMP */
 102                 assert( ber_bvcmp( &m1->bam_ad->ad_type->sat_cname, &m2->bam_ad->ad_type->sat_cname ) == 0 );
 103 #endif /* ! BACKSQL_USE_PTR_CMP */
 104
 105         } else {
 106 #ifdef BACKSQL_USE_PTR_CMP
 107                 assert( m1->bam_ad == m2->bam_ad );
 108 #else /* ! BACKSQL_USE_PTR_CMP */
 109                 assert( ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname ) == 0 );
 110 #endif /* ! BACKSQL_USE_PTR_CMP */
 111         }
 112
 113         /* duplicate definitions of attributeTypes are appended;
 114          * this allows to define multiple rules for the same
 115          * attributeType.  Use with care! */
 116         for ( ; m1->bam_next ; m1 = m1->bam_next );
 117
 118         m1->bam_next = m2;
 119         m2->bam_next = NULL;
 120
 121         return BACKSQL_DUPLICATE;
 122 }
 123
 124 static int
 125 backsql_make_attr_query(
 126         backsql_info            *bi,
 127         backsql_oc_map_rec      *oc_map,
 128         backsql_at_map_rec      *at_map )
 129 {
 130         struct berbuf   bb = BB_NULL;
 131
 132         backsql_strfcat_x( &bb, NULL, "lblbbbblblbcbl",
 133                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 134                         &at_map->bam_sel_expr,
 135                         (ber_len_t)STRLENOF( " " ), " ",
 136                         &bi->sql_aliasing,
 137                         &bi->sql_aliasing_quote,
 138                         &at_map->bam_ad->ad_cname,
 139                         &bi->sql_aliasing_quote,
 140                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 141                         &at_map->bam_from_tbls,
 142                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 143                         &oc_map->bom_keytbl,
 144                         '.',
 145                         &oc_map->bom_keycol,
 146                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 147
 148         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 149                 backsql_strfcat_x( &bb, NULL, "lb",
 150                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 151                                 &at_map->bam_join_where );
 152         }
 153
 154         backsql_strfcat_x( &bb, NULL, "lbbb",
 155                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 156                         &bi->sql_aliasing_quote,
 157                         &at_map->bam_ad->ad_cname,
 158                         &bi->sql_aliasing_quote );
 159
 160         at_map->bam_query = bb.bb_val.bv_val;
 161
 162 #ifdef BACKSQL_COUNTQUERY
 163         /* Query to count how many rows will be returned. */
 164         BER_BVZERO( &bb.bb_val );
 165         bb.bb_len = 0;
 166         backsql_strfcat_x( &bb, NULL, "lblbcbl",
 167                         (ber_len_t)STRLENOF( "SELECT COUNT(*) FROM " ),
 168                                 "SELECT COUNT(*) FROM ",
 169                         &at_map->bam_from_tbls,
 170                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 171                         &oc_map->bom_keytbl,
 172                         '.',
 173                         &oc_map->bom_keycol,
 174                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 175
 176         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 177                 backsql_strfcat_x( &bb, NULL, "lb",
 178                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 179                                 &at_map->bam_join_where );
 180         }
 181
 182         at_map->bam_countquery = bb.bb_val.bv_val;
 183 #endif /* BACKSQL_COUNTQUERY */
 184
 185         return 0;
 186 }
 187
 188 static int
 189 backsql_add_sysmaps( backsql_info *bi, backsql_oc_map_rec *oc_map )
 190 {
 191         backsql_at_map_rec      *at_map;
 192         char                    s[LDAP_PVT_INTTYPE_CHARS(long)];
 193         struct berval           sbv;
 194         struct berbuf           bb;
 195
 196         sbv.bv_val = s;
 197         sbv.bv_len = snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 198
 199         /* extra objectClasses */
 200         at_map = (backsql_at_map_rec *)ch_calloc(1,
 201                         sizeof( backsql_at_map_rec ) );
 202         at_map->bam_ad = slap_schema.si_ad_objectClass;
 203         at_map->bam_true_ad = slap_schema.si_ad_objectClass;
 204         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 205                         &at_map->bam_sel_expr );
 206         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 207                         &at_map->bam_from_tbls );
 208
 209         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 210         bb.bb_val = at_map->bam_from_tbls;
 211         backsql_merge_from_clause( bi, &bb, &oc_map->bom_keytbl );
 212         at_map->bam_from_tbls = bb.bb_val;
 213
 214         BER_BVZERO( &bb.bb_val );
 215         bb.bb_len = 0;
 216         backsql_strfcat_x( &bb, NULL, "lbcblb",
 217                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 218                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 219                         &oc_map->bom_keytbl,
 220                         '.',
 221                         &oc_map->bom_keycol,
 222                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 223                                 " and ldap_entries.oc_map_id=",
 224                         &sbv );
 225         at_map->bam_join_where = bb.bb_val;
 226
 227         at_map->bam_oc = oc_map->bom_oc;
 228
 229         at_map->bam_add_proc = NULL;
 230         {
 231                 char    tmp[STRLENOF("INSERT INTO ldap_entry_objclasses "
 232                         "(entry_id,oc_name) VALUES "
 233                         "((SELECT id FROM ldap_entries "
 234                         "WHERE oc_map_id= "
 235                         "AND keyval=?),?)") + LDAP_PVT_INTTYPE_CHARS(unsigned long)];
 236                 snprintf( tmp, sizeof(tmp),
 237                         "INSERT INTO ldap_entry_objclasses "
 238                         "(entry_id,oc_name) VALUES "
 239                         "((SELECT id FROM ldap_entries "
 240                         "WHERE oc_map_id=%lu "
 241                         "AND keyval=?),?)", oc_map->bom_id );
 242                 at_map->bam_add_proc = ch_strdup( tmp );
 243         }
 244
 245         at_map->bam_delete_proc = NULL;
 246         {
 247                 char    tmp[STRLENOF("DELETE FROM ldap_entry_objclasses "
 248                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 249                         "WHERE oc_map_id= "
 250                         "AND keyval=?) AND oc_name=?") + LDAP_PVT_INTTYPE_CHARS(unsigned long)];
 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( bi, 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_x( &bb, NULL, "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         return 1;
 289 }
 290
 291 struct backsql_attr_schema_info {
 292         backsql_info    *bas_bi;
 293         SQLHDBC         bas_dbh;
 294         SQLHSTMT        bas_sth;
 295         unsigned long   *bas_oc_id;
 296         int             bas_rc;
 297 };
 298
 299 static int
 300 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 301 {
 302         RETCODE                         rc;
 303         BACKSQL_ROW_NTS                 at_row;
 304         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 305         backsql_at_map_rec              *at_map;
 306         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 307
 308         /* bas->bas_oc_id has been bound to bas->bas_sth */
 309         *bas->bas_oc_id = oc_map->bom_id;
 310
 311         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 312                 "executing at_query\n"
 313                 "    \"%s\"\n"
 314                 "    for objectClass \"%s\"\n"
 315                 "    with param oc_id=\"%lu\"\n",
 316                 bas->bas_bi->sql_at_query,
 317                 BACKSQL_OC_NAME( oc_map ),
 318                 *bas->bas_oc_id );
 319
 320         rc = SQLExecute( bas->bas_sth );
 321         if ( rc != SQL_SUCCESS ) {
 322                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 323                         "error executing at_query\n"
 324                         "    \"%s\"\n"
 325                         "    for objectClass \"%s\"\n"
 326                         "    with param oc_id=\"%lu\"\n",
 327                         bas->bas_bi->sql_at_query,
 328                         BACKSQL_OC_NAME( oc_map ),
 329                         *bas->bas_oc_id );
 330                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 331                                 bas->bas_dbh, bas->bas_sth, rc );
 332                 bas->bas_rc = LDAP_OTHER;
 333                 return BACKSQL_AVL_STOP;
 334         }
 335
 336         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 337         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 338                 const char      *text = NULL;
 339                 struct berval   bv;
 340                 struct berbuf   bb = BB_NULL;
 341                 AttributeDescription *ad = NULL;
 342
 343                 {
 344                         struct {
 345                                 int idx;
 346                                 char *name;
 347                         } required[] = {
 348                                 { 0, "name" },
 349                                 { 1, "sel_expr" },
 350                                 { 2, "from" },
 351                                 { -1, NULL },
 352                         };
 353                         int i;
 354
 355                         for ( i = 0; required[ i ].name != NULL; i++ ) {
 356                                 if ( at_row.value_len[ i ] <= 0 ) {
 357                                         Debug( LDAP_DEBUG_ANY,
 358                                                 "backsql_oc_get_attr_mapping(): "
 359                                                 "required column #%d \"%s\" is empty\n",
 360                                                 required[ i ].idx, required[ i ].name, 0 );
 361                                         bas->bas_rc = LDAP_OTHER;
 362                                         return BACKSQL_AVL_STOP;
 363                                 }
 364                         }
 365                 }
 366
 367                 {
 368                         char            buf[ SLAP_TEXT_BUFLEN ];
 369
 370                         snprintf( buf, sizeof( buf ),
 371                                 "attributeType: "
 372                                 "name=\"%s\" "
 373                                 "sel_expr=\"%s\" "
 374                                 "from=\"%s\" "
 375                                 "join_where=\"%s\" "
 376                                 "add_proc=\"%s\" "
 377                                 "delete_proc=\"%s\" "
 378                                 "sel_expr_u=\"%s\"",
 379                                 at_row.cols[ 0 ],
 380                                 at_row.cols[ 1 ],
 381                                 at_row.cols[ 2 ],
 382                                 at_row.cols[ 3 ] ? at_row.cols[ 3 ] : "",
 383                                 at_row.cols[ 4 ] ? at_row.cols[ 4 ] : "",
 384                                 at_row.cols[ 5 ] ? at_row.cols[ 5 ] : "",
 385                                 at_row.cols[ 8 ] ? at_row.cols[ 8 ] : "");
 386                         Debug( LDAP_DEBUG_TRACE, "%s\n", buf, 0, 0 );
 387                 }
 388
 389                 rc = slap_str2ad( at_row.cols[ 0 ], &ad, &text );
 390                 if ( rc != LDAP_SUCCESS ) {
 391                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 392                                 "attribute \"%s\" for objectClass \"%s\" "
 393                                 "is not defined in schema: %s\n",
 394                                 at_row.cols[ 0 ],
 395                                 BACKSQL_OC_NAME( oc_map ), text );
 396                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 397                         return BACKSQL_AVL_STOP;
 398                 }
 399                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 400                                 sizeof( backsql_at_map_rec ) );
 401                 at_map->bam_ad = ad;
 402                 at_map->bam_true_ad = ad;
 403                 if ( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 404                         && !slap_ad_is_binary( ad ) )
 405                 {
 406                         char            buf[ SLAP_TEXT_BUFLEN ];
 407                         struct berval   bv;
 408                         const char      *text = NULL;
 409
 410                         bv.bv_val = buf;
 411                         bv.bv_len = snprintf( buf, sizeof( buf ), "%s;binary",
 412                                 ad->ad_cname.bv_val );
 413                         at_map->bam_true_ad = NULL;
 414                         bas->bas_rc = slap_bv2ad( &bv, &at_map->bam_true_ad, &text );
 415                         if ( bas->bas_rc != LDAP_SUCCESS ) {
 416                                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 417                                         "unable to fetch attribute \"%s\": %s (%d)\n",
 418                                         buf, text, rc );
 419                                 return BACKSQL_AVL_STOP;
 420                         }
 421                 }
 422
 423                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 424                 if ( at_row.value_len[ 8 ] <= 0 ) {
 425                         BER_BVZERO( &at_map->bam_sel_expr_u );
 426
 427                 } else {
 428                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 429                                         &at_map->bam_sel_expr_u );
 430                 }
 431
 432                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 433                 backsql_merge_from_clause( bas->bas_bi, &bb, &bv );
 434                 at_map->bam_from_tbls = bb.bb_val;
 435                 if ( at_row.value_len[ 3 ] <= 0 ) {
 436                         BER_BVZERO( &at_map->bam_join_where );
 437
 438                 } else {
 439                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 440                                         &at_map->bam_join_where );
 441                 }
 442                 at_map->bam_add_proc = NULL;
 443                 if ( at_row.value_len[ 4 ] > 0 ) {
 444                         at_map->bam_add_proc = ch_strdup( at_row.cols[ 4 ] );
 445                 }
 446                 at_map->bam_delete_proc = NULL;
 447                 if ( at_row.value_len[ 5 ] > 0 ) {
 448                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 449                 }
 450                 if ( lutil_atoix( &at_map->bam_param_order, at_row.cols[ 6 ], 0 ) != 0 ) {
 451                         /* error */
 452                 }
 453                 if ( lutil_atoix( &at_map->bam_expect_return, at_row.cols[ 7 ], 0 ) != 0 ) {
 454                         /* error */
 455                 }
 456                 backsql_make_attr_query( bas->bas_bi, oc_map, at_map );
 457                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 458                         "preconstructed query \"%s\"\n",
 459                         at_map->bam_query, 0, 0 );
 460                 at_map->bam_next = NULL;
 461                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 462                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 463                                         "duplicate attribute \"%s\" "
 464                                         "in objectClass \"%s\" map\n",
 465                                         at_map->bam_ad->ad_cname.bv_val,
 466                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 467                 }
 468
 469                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 470                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 471                 {
 472                         struct berbuf   bb = BB_NULL;
 473
 474                         backsql_strfcat_x( &bb, NULL, "bcbc",
 475                                         &bas->bas_bi->sql_upper_func,
 476                                         '(' /* ) */ ,
 477                                         &at_map->bam_sel_expr,
 478                                         /* ( */ ')' );
 479                         at_map->bam_sel_expr_u = bb.bb_val;
 480                 }
 481         }
 482         backsql_FreeRow( &at_row );
 483         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 484
 485         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 486                 "autoadding 'objectClass' and 'ref' mappings\n",
 487                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 488
 489         (void)backsql_add_sysmaps( bas->bas_bi, oc_map );
 490
 491         return BACKSQL_AVL_CONTINUE;
 492 }
 493
 494
 495 int
 496 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 497 {
 498         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 499         RETCODE                         rc;
 500         BACKSQL_ROW_NTS                 oc_row;
 501         unsigned long                   oc_id;
 502         backsql_oc_map_rec              *oc_map;
 503         struct backsql_attr_schema_info bas;
 504
 505         int                             delete_proc_idx = 5;
 506         int                             create_hint_idx = delete_proc_idx + 2;
 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
 552         if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 553                 delete_proc_idx++;
 554                 create_hint_idx++;
 555         }
 556
 557         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 558                 {
 559                         struct {
 560                                 int idx;
 561                                 char *name;
 562                         } required[] = {
 563                                 { 0, "id" },
 564                                 { 1, "name" },
 565                                 { 2, "keytbl" },
 566                                 { 3, "keycol" },
 567                                 { delete_proc_idx + 1, "expect_return" },
 568                                 { -1, NULL },
 569                         };
 570                         int i;
 571
 572                         for ( i = 0; required[ i ].name != NULL; i++ ) {
 573                                 if ( oc_row.value_len[ required[ i ].idx ] <= 0 ) {
 574                                         Debug( LDAP_DEBUG_ANY,
 575                                                 "backsql_load_schema_map(): "
 576                                                 "required column #%d \"%s\" is empty\n",
 577                                                 required[ i ].idx, required[ i ].name, 0 );
 578                                         return LDAP_OTHER;
 579                                 }
 580                         }
 581                 }
 582
 583                 {
 584                         char            buf[ SLAP_TEXT_BUFLEN ];
 585
 586                         snprintf( buf, sizeof( buf ),
 587                                 "objectClass: "
 588                                 "id=\"%s\" "
 589                                 "name=\"%s\" "
 590                                 "keytbl=\"%s\" "
 591                                 "keycol=\"%s\" "
 592                                 "create_proc=\"%s\" "
 593                                 "create_keyval=\"%s\" "
 594                                 "delete_proc=\"%s\" "
 595                                 "expect_return=\"%s\""
 596                                 "create_hint=\"%s\" ",
 597                                 oc_row.cols[ 0 ],
 598                                 oc_row.cols[ 1 ],
 599                                 oc_row.cols[ 2 ],
 600                                 oc_row.cols[ 3 ],
 601                                 oc_row.cols[ 4 ] ? oc_row.cols[ 4 ] : "",
 602                                 ( BACKSQL_CREATE_NEEDS_SELECT( bi ) && oc_row.cols[ 5 ] ) ? oc_row.cols[ 5 ] : "",
 603                                 oc_row.cols[ delete_proc_idx ] ? oc_row.cols[ delete_proc_idx ] : "",
 604                                 oc_row.cols[ delete_proc_idx + 1 ],
 605                                 ( ( oc_row.ncols > create_hint_idx ) && oc_row.cols[ create_hint_idx ] ) ? oc_row.cols[ create_hint_idx ] : "" );
 606                         Debug( LDAP_DEBUG_TRACE, "%s\n", buf, 0, 0 );
 607                 }
 608
 609                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 610                                 sizeof( backsql_oc_map_rec ) );
 611
 612                 if ( lutil_atoulx( &oc_map->bom_id, oc_row.cols[ 0 ], 0 ) != 0 ) {
 613                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 614                                 "unable to parse id=\"%s\"\n",
 615                                 oc_row.cols[ 0 ], 0, 0 );
 616                         return LDAP_OTHER;
 617                 }
 618
 619                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 620                 if ( oc_map->bom_oc == NULL ) {
 621                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 622                                 "objectClass \"%s\" is not defined in schema\n",
 623                                 oc_row.cols[ 1 ], 0, 0 );
 624                         return LDAP_OTHER;      /* undefined objectClass ? */
 625                 }
 626
 627                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 628                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 629                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] <= 0 ) ? NULL
 630                         : ch_strdup( oc_row.cols[ 4 ] );
 631
 632                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 633                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] <= 0 )
 634                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 635                 }
 636                 oc_map->bom_delete_proc = ( oc_row.value_len[ delete_proc_idx ] <= 0 ) ? NULL
 637                         : ch_strdup( oc_row.cols[ delete_proc_idx ] );
 638                 if ( lutil_atoix( &oc_map->bom_expect_return, oc_row.cols[ delete_proc_idx + 1 ], 0 ) != 0 ) {
 639                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 640                                 "unable to parse expect_return=\"%s\" for objectClass \"%s\"\n",
 641                                 oc_row.cols[ delete_proc_idx + 1 ], oc_row.cols[ 1 ], 0 );
 642                         return LDAP_OTHER;
 643                 }
 644
 645                 if ( ( oc_row.ncols > create_hint_idx ) &&
 646                                 ( oc_row.value_len[ create_hint_idx ] > 0 ) )
 647                 {
 648                         const char      *text;
 649
 650                         oc_map->bom_create_hint = NULL;
 651                         rc = slap_str2ad( oc_row.cols[ create_hint_idx ],
 652                                         &oc_map->bom_create_hint, &text );
 653                         if ( rc != SQL_SUCCESS ) {
 654                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 655                                                 "error matching "
 656                                                 "AttributeDescription %s "
 657                                                 "in create_hint: %s (%d)\n",
 658                                                 oc_row.cols[ create_hint_idx ],
 659                                                 text, rc );
 660                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 661                                                 sth, rc );
 662                                 return LDAP_OTHER;
 663                         }
 664                 }
 665
 666                 /*
 667                  * FIXME: first attempt to check for offending
 668                  * instructions in {create|delete}_proc
 669                  */
 670
 671                 oc_map->bom_attrs = NULL;
 672                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 673                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 674                                         "duplicate objectClass \"%s\" in objectClass map\n",
 675                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 676                         return LDAP_OTHER;
 677                 }
 678                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 679                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 680                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 681                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 682                         return LDAP_OTHER;
 683                 }
 684                 oc_id = oc_map->bom_id;
 685                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 686                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 687                         BACKSQL_OC_NAME( oc_map ),
 688                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 689                 if ( oc_map->bom_create_proc ) {
 690                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 691                                 oc_map->bom_create_proc, 0, 0 );
 692                 }
 693                 if ( oc_map->bom_create_keyval ) {
 694                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 695                                 oc_map->bom_create_keyval, 0, 0 );
 696                 }
 697                 if ( oc_map->bom_create_hint ) {
 698                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 699                                 oc_map->bom_create_hint->ad_cname.bv_val,
 700                                 0, 0 );
 701                 }
 702                 if ( oc_map->bom_delete_proc ) {
 703                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 704                                 oc_map->bom_delete_proc, 0, 0 );
 705                 }
 706                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 707                         "add=%d, del=%d; attributes:\n",
 708                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 709                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 710         }
 711
 712         backsql_FreeRow( &oc_row );
 713         SQLFreeStmt( sth, SQL_DROP );
 714
 715         /* prepare for attribute fetching */
 716         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 717                         bi->sql_at_query, 0, 0 );
 718
 719         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 720         if ( rc != SQL_SUCCESS ) {
 721                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 722                         "error preparing at_query: \"%s\"\n",
 723                         bi->sql_at_query, 0, 0 );
 724                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 725                 return LDAP_OTHER;
 726         }
 727
 728         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 729         if ( rc != SQL_SUCCESS ) {
 730                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 731                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 732                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 733                 SQLFreeStmt( sth, SQL_DROP );
 734                 return LDAP_OTHER;
 735         }
 736
 737         bas.bas_bi = bi;
 738         bas.bas_dbh = dbh;
 739         bas.bas_sth = sth;
 740         bas.bas_oc_id = &oc_id;
 741         bas.bas_rc = LDAP_SUCCESS;
 742
 743         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 744                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 745
 746         SQLFreeStmt( sth, SQL_DROP );
 747
 748         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 749
 750         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 751
 752         return bas.bas_rc;
 753 }
 754
 755 backsql_oc_map_rec *
 756 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 757 {
 758         backsql_oc_map_rec      tmp, *res;
 759
 760 #ifdef BACKSQL_TRACE
 761         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 762                 "searching for objectclass with name=\"%s\"\n",
 763                 oc->soc_cname.bv_val, 0, 0 );
 764 #endif /* BACKSQL_TRACE */
 765
 766         tmp.bom_oc = oc;
 767         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 768 #ifdef BACKSQL_TRACE
 769         if ( res != NULL ) {
 770                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 771                         "found name=\"%s\", id=%d\n",
 772                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 773         } else {
 774                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 775                         "not found\n", 0, 0, 0 );
 776         }
 777 #endif /* BACKSQL_TRACE */
 778
 779         return res;
 780 }
 781
 782 backsql_oc_map_rec *
 783 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 784 {
 785         backsql_oc_map_rec      tmp, *res;
 786
 787 #ifdef BACKSQL_TRACE
 788         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 789                 "searching for objectclass with name=\"%s\"\n",
 790                 oc_name->bv_val, 0, 0 );
 791 #endif /* BACKSQL_TRACE */
 792
 793         tmp.bom_oc = oc_bvfind( oc_name );
 794         if ( tmp.bom_oc == NULL ) {
 795                 return NULL;
 796         }
 797
 798         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 799 #ifdef BACKSQL_TRACE
 800         if ( res != NULL ) {
 801                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 802                         "found name=\"%s\", id=%d\n",
 803                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 804         } else {
 805                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 806                         "not found\n", 0, 0, 0 );
 807         }
 808 #endif /* BACKSQL_TRACE */
 809
 810         return res;
 811 }
 812
 813 backsql_oc_map_rec *
 814 backsql_id2oc( backsql_info *bi, unsigned long id )
 815 {
 816         backsql_oc_map_rec      tmp, *res;
 817
 818 #ifdef BACKSQL_TRACE
 819         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 820                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 821 #endif /* BACKSQL_TRACE */
 822
 823         tmp.bom_id = id;
 824         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 825                         backsql_cmp_oc_id );
 826
 827 #ifdef BACKSQL_TRACE
 828         if ( res != NULL ) {
 829                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 830                         "found name=\"%s\", id=%d\n",
 831                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 832         } else {
 833                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 834                         "not found\n", 0, 0, 0 );
 835         }
 836 #endif /* BACKSQL_TRACE */
 837
 838         return res;
 839 }
 840
 841 backsql_at_map_rec *
 842 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 843 {
 844         backsql_at_map_rec      tmp = { 0 }, *res;
 845
 846 #ifdef BACKSQL_TRACE
 847         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 848                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 849                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 850 #endif /* BACKSQL_TRACE */
 851
 852         tmp.bam_ad = ad;
 853         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 854                         backsql_cmp_attr );
 855
 856 #ifdef BACKSQL_TRACE
 857         if ( res != NULL ) {
 858                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 859                         "found name=\"%s\", sel_expr=\"%s\"\n",
 860                         res->bam_ad->ad_cname.bv_val,
 861                         res->bam_sel_expr.bv_val, 0 );
 862         } else {
 863                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 864                         "not found\n", 0, 0, 0 );
 865         }
 866 #endif /* BACKSQL_TRACE */
 867
 868         return res;
 869 }
 870
 871 /* attributeType inheritance */
 872 struct supad2at_t {
 873         backsql_at_map_rec      **ret;
 874         AttributeDescription    *ad;
 875         unsigned                n;
 876 };
 877
 878 #define SUPAD2AT_STOP   (-1)
 879
 880 static int
 881 supad2at_f( void *v_at, void *v_arg )
 882 {
 883         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 884         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 885
 886         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 887                 backsql_at_map_rec      **ret = NULL;
 888                 unsigned                i;
 889
 890                 /* if already listed, holler! (should never happen) */
 891                 if ( va->ret ) {
 892                         for ( i = 0; i < va->n; i++ ) {
 893                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 894                                         break;
 895                                 }
 896                         }
 897
 898                         if ( i < va->n ) {
 899                                 return 0;
 900                         }
 901                 }
 902
 903                 ret = ch_realloc( va->ret,
 904                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 905                 if ( ret == NULL ) {
 906                         ch_free( va->ret );
 907                         va->ret = NULL;
 908                         va->n = 0;
 909                         return SUPAD2AT_STOP;
 910                 }
 911
 912                 ret[ va->n ] = at;
 913                 va->n++;
 914                 ret[ va->n ] = NULL;
 915                 va->ret = ret;
 916         }
 917
 918         return 0;
 919 }
 920
 921 /*
 922  * stores in *pret a NULL terminated array of pointers
 923  * to backsql_at_map_rec whose attributeType is supad->ad_type
 924  * or derived from it
 925  */
 926 int
 927 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 928                 backsql_at_map_rec ***pret )
 929 {
 930         struct supad2at_t       va = { 0 };
 931         int                     rc;
 932
 933         assert( objclass != NULL );
 934         assert( supad != NULL );
 935         assert( pret != NULL );
 936
 937         *pret = NULL;
 938
 939         va.ad = supad;
 940
 941         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 942                         SUPAD2AT_STOP, AVL_INORDER );
 943         if ( rc == SUPAD2AT_STOP ) {
 944                 return -1;
 945         }
 946
 947         *pret = va.ret;
 948
 949         return 0;
 950 }
 951
 952 static void
 953 backsql_free_attr( void *v_at )
 954 {
 955         backsql_at_map_rec      *at = v_at;
 956
 957         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 958                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 959         ch_free( at->bam_sel_expr.bv_val );
 960         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 961                 ch_free( at->bam_from_tbls.bv_val );
 962         }
 963         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 964                 ch_free( at->bam_join_where.bv_val );
 965         }
 966         if ( at->bam_add_proc != NULL ) {
 967                 ch_free( at->bam_add_proc );
 968         }
 969         if ( at->bam_delete_proc != NULL ) {
 970                 ch_free( at->bam_delete_proc );
 971         }
 972         if ( at->bam_query != NULL ) {
 973                 ch_free( at->bam_query );
 974         }
 975
 976 #ifdef BACKSQL_COUNTQUERY
 977         if ( at->bam_countquery != NULL ) {
 978                 ch_free( at->bam_countquery );
 979         }
 980 #endif /* BACKSQL_COUNTQUERY */
 981
 982         /* TimesTen */
 983         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 984                 ch_free( at->bam_sel_expr_u.bv_val );
 985         }
 986
 987         if ( at->bam_next ) {
 988                 backsql_free_attr( at->bam_next );
 989         }
 990
 991         ch_free( at );
 992
 993         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 994 }
 995
 996 static void
 997 backsql_free_oc( void *v_oc )
 998 {
 999         backsql_oc_map_rec      *oc = v_oc;
1000
1001         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
1002                         BACKSQL_OC_NAME( oc ), 0, 0 );
1003         avl_free( oc->bom_attrs, backsql_free_attr );
1004         ch_free( oc->bom_keytbl.bv_val );
1005         ch_free( oc->bom_keycol.bv_val );
1006         if ( oc->bom_create_proc != NULL ) {
1007                 ch_free( oc->bom_create_proc );
1008         }
1009         if ( oc->bom_create_keyval != NULL ) {
1010                 ch_free( oc->bom_create_keyval );
1011         }
1012         if ( oc->bom_delete_proc != NULL ) {
1013                 ch_free( oc->bom_delete_proc );
1014         }
1015         ch_free( oc );
1016
1017         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
1018 }
1019
1020 int
1021 backsql_destroy_schema_map( backsql_info *bi )
1022 {
1023         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
1024         avl_free( bi->sql_oc_by_oc, 0 );
1025         avl_free( bi->sql_oc_by_id, backsql_free_oc );
1026         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
1027         return 0;
1028 }
1029