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/* mr.c - routines to manage matching rule definitions */
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/* $OpenLDAP: pkg/ldap/servers/slapd/mr.c,v 1.64.2.3 2008/02/11 23:26:44 kurt Exp $ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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* Copyright 1998-2008 The OpenLDAP Foundation.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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#include <ac/string.h>
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#include <ac/socket.h>
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struct berval mir_name;
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static Avlnode *mr_index = NULL;
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static LDAP_SLIST_HEAD(MRList, MatchingRule) mr_list
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= LDAP_SLIST_HEAD_INITIALIZER(&mr_list);
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static LDAP_SLIST_HEAD(MRUList, MatchingRuleUse) mru_list
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= LDAP_SLIST_HEAD_INITIALIZER(&mru_list);
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const struct mindexrec *mir1 = v_mir1;
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const struct mindexrec *mir2 = v_mir2;
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int i = mir1->mir_name.bv_len - mir2->mir_name.bv_len;
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return (strcasecmp( mir1->mir_name.bv_val, mir2->mir_name.bv_val ));
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const struct berval *name = v_name;
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const struct mindexrec *mir = v_mir;
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int i = name->bv_len - mir->mir_name.bv_len;
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return (strncasecmp( name->bv_val, mir->mir_name.bv_val, name->bv_len ));
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mr_find( const char *mrname )
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bv.bv_val = (char *)mrname;
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bv.bv_len = strlen( mrname );
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return mr_bvfind( &bv );
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mr_bvfind( struct berval *mrname )
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struct mindexrec *mir = NULL;
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if ( (mir = avl_find( mr_index, mrname, mr_index_name_cmp )) != NULL ) {
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return( mir->mir_mr );
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avl_free(mr_index, ldap_memfree);
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while( !LDAP_SLIST_EMPTY(&mr_list) ) {
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m = LDAP_SLIST_FIRST(&mr_list);
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LDAP_SLIST_REMOVE_HEAD(&mr_list, smr_next);
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ch_free( m->smr_str.bv_val );
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ch_free( m->smr_compat_syntaxes );
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ldap_matchingrule_free((LDAPMatchingRule *)m);
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struct mindexrec *mir;
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LDAP_SLIST_NEXT( smr, smr_next ) = NULL;
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LDAP_SLIST_INSERT_HEAD(&mr_list, smr, smr_next);
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if ( smr->smr_oid ) {
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mir = (struct mindexrec *)
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ch_calloc( 1, sizeof(struct mindexrec) );
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mir->mir_name.bv_val = smr->smr_oid;
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mir->mir_name.bv_len = strlen( smr->smr_oid );
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if ( avl_insert( &mr_index, (caddr_t) mir,
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mr_index_cmp, avl_dup_error ) ) {
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return SLAP_SCHERR_MR_DUP;
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/* FIX: temporal consistency check */
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mr_bvfind(&mir->mir_name);
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if ( (names = smr->smr_names) ) {
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mir = (struct mindexrec *)
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ch_calloc( 1, sizeof(struct mindexrec) );
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mir->mir_name.bv_val = *names;
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mir->mir_name.bv_len = strlen( *names );
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if ( avl_insert( &mr_index, (caddr_t) mir,
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mr_index_cmp, avl_dup_error ) ) {
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return SLAP_SCHERR_MR_DUP;
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/* FIX: temporal consistency check */
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mr_bvfind(&mir->mir_name);
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mr_make_syntax_compat_with_mr(
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assert( syn != NULL );
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assert( mr != NULL );
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if ( mr->smr_compat_syntaxes ) {
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mr->smr_compat_syntaxes[ n ];
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if ( mr->smr_compat_syntaxes[ n ] == syn ) {
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/* already compatible; mmmmh... */
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mr->smr_compat_syntaxes = ch_realloc(
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mr->smr_compat_syntaxes,
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sizeof( Syntax * )*(n + 2) );
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mr->smr_compat_syntaxes[ n ] = syn;
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mr->smr_compat_syntaxes[ n + 1 ] = NULL;
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mr_make_syntax_compat_with_mrs(
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assert( syntax != NULL );
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assert( mrs != NULL );
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syn = syn_find( syntax );
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for ( r = 0; mrs[ r ] != NULL; r++ ) {
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MatchingRule *mr = mr_find( mrs[ r ] );
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/* matchingRule not found -- ignore by now */
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rc += mr_make_syntax_compat_with_mr( syn, mr );
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LDAPMatchingRule *mr,
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slap_mrule_defs_rec *def,
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Syntax **compat_syn = NULL;
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if( def->mrd_compat_syntaxes ) {
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for( i=0; def->mrd_compat_syntaxes[i]; i++ ) {
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compat_syn = ch_malloc( sizeof(Syntax *) * (i+1) );
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for( i=0; def->mrd_compat_syntaxes[i]; i++ ) {
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compat_syn[i] = syn_find( def->mrd_compat_syntaxes[i] );
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if( compat_syn[i] == NULL ) {
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ch_free( compat_syn );
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return SLAP_SCHERR_SYN_NOT_FOUND;
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compat_syn[i] = NULL;
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smr = (MatchingRule *) ch_calloc( 1, sizeof(MatchingRule) );
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AC_MEMCPY( &smr->smr_mrule, mr, sizeof(LDAPMatchingRule));
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* note: smr_bvoid uses the same memory of smr_mrule.mr_oid;
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* smr_oidlen is #defined as smr_bvoid.bv_len
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smr->smr_bvoid.bv_val = smr->smr_mrule.mr_oid;
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smr->smr_oidlen = strlen( mr->mr_oid );
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smr->smr_usage = def->mrd_usage;
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smr->smr_compat_syntaxes = compat_syn;
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smr->smr_normalize = def->mrd_normalize;
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smr->smr_match = def->mrd_match;
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smr->smr_indexer = def->mrd_indexer;
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smr->smr_filter = def->mrd_filter;
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smr->smr_associated = amr;
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if ( smr->smr_syntax_oid ) {
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if ( (syn = syn_find(smr->smr_syntax_oid)) ) {
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smr->smr_syntax = syn;
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*err = smr->smr_syntax_oid;
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return SLAP_SCHERR_SYN_NOT_FOUND;
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return SLAP_SCHERR_MR_INCOMPLETE;
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code = mr_insert(smr,err);
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register_matching_rule(
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slap_mrule_defs_rec *def )
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LDAPMatchingRule *mr;
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MatchingRule *amr = NULL;
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if( def->mrd_usage == SLAP_MR_NONE && def->mrd_compat_syntaxes == NULL ) {
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Debug( LDAP_DEBUG_ANY, "register_matching_rule: not usable %s\n",
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def->mrd_desc, 0, 0 );
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if( def->mrd_associated != NULL ) {
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amr = mr_find( def->mrd_associated );
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Debug( LDAP_DEBUG_ANY, "register_matching_rule: "
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"could not locate associated matching rule %s for %s\n",
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def->mrd_associated, def->mrd_desc, 0 );
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if (( def->mrd_usage & SLAP_MR_EQUALITY ) &&
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(( def->mrd_usage & SLAP_MR_SUBTYPE_MASK ) == SLAP_MR_NONE ))
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if (( def->mrd_usage & SLAP_MR_EQUALITY ) &&
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(( def->mrd_usage & SLAP_MR_SUBTYPE_MASK ) != SLAP_MR_NONE ))
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Debug( LDAP_DEBUG_ANY, "register_matching_rule: "
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"inappropriate (approx) association %s for %s\n",
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def->mrd_associated, def->mrd_desc, 0 );
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} else if (!( amr->smr_usage & SLAP_MR_EQUALITY )) {
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Debug( LDAP_DEBUG_ANY, "register_matching_rule: "
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"inappropriate (equalilty) association %s for %s\n",
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def->mrd_associated, def->mrd_desc, 0 );
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mr = ldap_str2matchingrule( def->mrd_desc, &code, &err,
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LDAP_SCHEMA_ALLOW_ALL );
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Debug( LDAP_DEBUG_ANY,
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"Error in register_matching_rule: %s before %s in %s\n",
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ldap_scherr2str(code), err, def->mrd_desc );
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code = mr_add( mr, def, amr, &err );
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Debug( LDAP_DEBUG_ANY,
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"Error in register_matching_rule: %s for %s in %s\n",
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scherr2str(code), err, def->mrd_desc );
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while( !LDAP_SLIST_EMPTY(&mru_list) ) {
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m = LDAP_SLIST_FIRST(&mru_list);
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LDAP_SLIST_REMOVE_HEAD(&mru_list, smru_next);
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if ( m->smru_str.bv_val ) {
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ch_free( m->smru_str.bv_val );
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m->smru_str.bv_val = NULL;
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/* memory borrowed from m->smru_mr */
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m->smru_names = NULL;
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/* free what's left (basically smru_mruleuse.mru_applies_oids) */
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ldap_matchingruleuse_free((LDAPMatchingRuleUse *)m);
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matching_rule_use_init( void )
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MatchingRuleUse **mru_ptr = &LDAP_SLIST_FIRST(&mru_list);
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Debug( LDAP_DEBUG_TRACE, "matching_rule_use_init\n", 0, 0, 0 );
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LDAP_SLIST_FOREACH( mr, &mr_list, smr_next ) {
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MatchingRuleUse mru_storage = { 0 },
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char **applies_oids = NULL;
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/* hide rules marked as HIDE */
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if ( mr->smr_usage & SLAP_MR_HIDE ) {
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/* hide rules not marked as designed for extensibility */
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/* MR_EXT means can be used any attribute type whose
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* syntax is same as the assertion syntax.
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* Another mechanism is needed where rule can be used
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* with attribute of other syntaxes.
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* Framework doesn't support this (yet).
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if (!( ( mr->smr_usage & SLAP_MR_EXT )
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|| mr->smr_compat_syntaxes ) )
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* Note: we're using the same values of the corresponding
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* MatchingRule structure; maybe we'd copy them ...
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mru->smru_obsolete = mr->smr_obsolete;
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mru->smru_applies_oids = NULL;
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LDAP_SLIST_NEXT(mru, smru_next) = NULL;
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mru->smru_oid = mr->smr_oid;
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mru->smru_names = mr->smr_names;
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mru->smru_desc = mr->smr_desc;
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Debug( LDAP_DEBUG_TRACE, " %s (%s): ",
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mru->smru_names ? mru->smru_names[ 0 ] : "", 0 );
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for ( at_start( &at ); at; at_next( &at ) ) {
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if( at->sat_flags & SLAP_AT_HIDE ) continue;
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if( mr_usable_with_at( mr, at )) {
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ldap_charray_add( &applies_oids, at->sat_cname.bv_val );
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* Note: the matchingRules that are not used
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* by any attributeType are not listed as
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if ( applies_oids != NULL ) {
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mru->smru_applies_oids = applies_oids;
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char *str = ldap_matchingruleuse2str( &mru->smru_mruleuse );
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Debug( LDAP_DEBUG_TRACE, "matchingRuleUse: %s\n", str, 0, 0 );
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mru = (MatchingRuleUse *)ber_memalloc( sizeof( MatchingRuleUse ) );
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/* call-forward from MatchingRule to MatchingRuleUse */
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/* copy static data to newly allocated struct */
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/* append the struct pointer to the end of the list */
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/* update the list head pointer */
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mru_ptr = &LDAP_SLIST_NEXT(mru,smru_next);
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if ( ( mr->smr_usage & SLAP_MR_EXT ) && (
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mr->smr_syntax == at->sat_syntax ||
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mr == at->sat_equality ||
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mr == at->sat_approx ||
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syn_is_sup( at->sat_syntax, mr->smr_syntax ) ) )
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if ( mr->smr_compat_syntaxes ) {
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for( i=0; mr->smr_compat_syntaxes[i]; i++ ) {
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if( at->sat_syntax == mr->smr_compat_syntaxes[i] ) {
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int mr_schema_info( Entry *e )
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AttributeDescription *ad_matchingRules = slap_schema.si_ad_matchingRules;
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LDAP_SLIST_FOREACH(mr, &mr_list, smr_next ) {
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if ( mr->smr_usage & SLAP_MR_HIDE ) {
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/* skip hidden rules */
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if ( ! mr->smr_match ) {
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/* skip rules without matching functions */
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if ( mr->smr_str.bv_val == NULL ) {
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if ( ldap_matchingrule2bv( &mr->smr_mrule, &mr->smr_str ) == NULL ) {
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Debug( LDAP_DEBUG_TRACE, "Merging mr [%lu] %s\n",
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mr->smr_str.bv_len, mr->smr_str.bv_val, 0 );
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nval.bv_val = mr->smr_oid;
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nval.bv_len = strlen(mr->smr_oid);
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if( attr_merge_one( e, ad_matchingRules, &mr->smr_str, &nval ) ) {
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int mru_schema_info( Entry *e )
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AttributeDescription *ad_matchingRuleUse
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= slap_schema.si_ad_matchingRuleUse;
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MatchingRuleUse *mru;
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LDAP_SLIST_FOREACH( mru, &mru_list, smru_next ) {
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assert( !( mru->smru_usage & SLAP_MR_HIDE ) );
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if ( mru->smru_str.bv_val == NULL ) {
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if ( ldap_matchingruleuse2bv( &mru->smru_mruleuse, &mru->smru_str )
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Debug( LDAP_DEBUG_TRACE, "Merging mru [%lu] %s\n",
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mru->smru_str.bv_len, mru->smru_str.bv_val, 0 );
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nval.bv_val = mru->smru_oid;
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nval.bv_len = strlen(mru->smru_oid);
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if( attr_merge_one( e, ad_matchingRuleUse, &mru->smru_str, &nval ) ) {