X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fcompare.c;h=87a88e4886c107b8e3a295d79660b60db3cec6c9;hb=ad0858dea49bd3155d4ba210ee3afd923179f217;hp=544b7ca1cd8c5b8350a7de4e112d806963ac04d0;hpb=175ace59c8906d27639d5ee72cfaa3e4de2b2c02;p=openldap

diff --git a/servers/slapd/compare.c b/servers/slapd/compare.c
index 544b7ca1cd..87a88e4886 100644
--- a/servers/slapd/compare.c
+++ b/servers/slapd/compare.c
@@ -1,3 +1,8 @@
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*
  * Copyright (c) 1995 Regents of the University of Michigan.
  * All rights reserved.
@@ -13,32 +18,43 @@
 #include "portable.h"
 
 #include <stdio.h>
-
 #include <ac/socket.h>
 
+#include "ldap_pvt.h"
 #include "slap.h"
 
+static int compare_entry(
+	Connection *conn,
+	Operation *op,
+	Entry *e,
+	AttributeAssertion *ava );
+
 int
 do_compare(
     Connection	*conn,
     Operation	*op
 )
 {
-	char	*ndn;
-	Ava	ava;
+	Entry *entry = NULL;
+	struct berval dn = { 0, NULL };
+	struct berval pdn = { 0, NULL };
+	struct berval ndn = { 0, NULL };
+	struct berval desc = { 0, NULL };
+	struct berval value = { 0, NULL };
+	AttributeAssertion ava = { 0 };
 	Backend	*be;
 	int rc = LDAP_SUCCESS;
+	const char *text = NULL;
+	int manageDSAit;
 
-	Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
-
-	if( op->o_bind_in_progress ) {
-		Debug( LDAP_DEBUG_ANY, "do_compare: SASL bind in progress.\n",
-			0, 0, 0 );
-		send_ldap_result( conn, op, LDAP_SASL_BIND_IN_PROGRESS, NULL,
-		    "SASL bind in progress" );
-		return LDAP_SASL_BIND_IN_PROGRESS;
-	}
+	ava.aa_desc = NULL;
 
+#ifdef NEW_LOGGING
+	LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
+		"do_compare: conn %d\n", conn->c_connid ));
+#else
+	Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
+#endif
 	/*
 	 * Parse the compare request.  It looks like this:
 	 *
@@ -51,58 +67,247 @@ do_compare(
 	 *	}
 	 */
 
-	if ( ber_scanf( op->o_ber, "{a{ao}}", &ndn, &ava.ava_type,
-	    &ava.ava_value ) == LBER_ERROR ) {
+	if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+			"do_compare: conn %d  ber_scanf failed\n", conn->c_connid ));
+#else
 		Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
-		send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, NULL, "" );
-		return rc;
+#endif
+		send_ldap_disconnect( conn, op,
+			LDAP_PROTOCOL_ERROR, "decoding error" );
+		return SLAPD_DISCONNECT;
+	}
+
+	if ( ber_scanf( op->o_ber, "{mm}", &desc, &value ) == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+			"do_compare: conn %d  get ava failed\n", conn->c_connid ));
+#else
+		Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
+#endif
+		send_ldap_disconnect( conn, op,
+			LDAP_PROTOCOL_ERROR, "decoding error" );
+		rc = SLAPD_DISCONNECT;
+		goto cleanup;
+	}
+
+	if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+			"do_compare: conn %d  ber_scanf failed\n", conn->c_connid ));
+#else
+		Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
+#endif
+		send_ldap_disconnect( conn, op,
+			LDAP_PROTOCOL_ERROR, "decoding error" );
+		rc = SLAPD_DISCONNECT;
+		goto cleanup;
 	}
 
-#ifdef GET_CTRLS
 	if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
-		free( ndn );
-		ava_free( &ava, 0 );
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
+			"do_compare: conn %d  get_ctrls failed\n", conn->c_connid ));
+#else
 		Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
-		return rc;
+#endif
+		goto cleanup;
 	} 
+
+	rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
+	if( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
+			"do_compare: conn %d  invalid dn (%s)\n",
+			conn->c_connid, dn.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ANY,
+			"do_compare: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 #endif
+		send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+		    "invalid DN", NULL, NULL );
+		goto cleanup;
+	}
 
-	value_normalize( ava.ava_value.bv_val, attr_syntax( ava.ava_type ) );
+	rc = slap_bv2ad( &desc, &ava.aa_desc, &text );
+	if( rc != LDAP_SUCCESS ) {
+		send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
+		goto cleanup;
+	}
 
-	Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
-	    ndn, ava.ava_type, ava.ava_value.bv_val );
+	rc = value_validate_normalize( ava.aa_desc, SLAP_MR_EQUALITY,
+		&value, &ava.aa_value, &text );
+	if( rc != LDAP_SUCCESS ) {
+		send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
+		goto cleanup;
+	}
+
+	if( strcasecmp( ndn.bv_val, LDAP_ROOT_DSE ) == 0 ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
+			"do_compare: conn %d  dn (%s) attr(%s) value (%s)\n",
+			conn->c_connid, pdn.bv_val,
+			ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
+			pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
+#endif
+
+		Statslog( LDAP_DEBUG_STATS,
+			"conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
+			op->o_connid, op->o_opid, pdn.bv_val,
+			ava.aa_desc->ad_cname.bv_val, 0 );
+
+		rc = backend_check_restrictions( NULL, conn, op, NULL, &text ) ;
+		if( rc != LDAP_SUCCESS ) {
+			send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
+			goto cleanup;
+		}
+
+		rc = root_dse_info( conn, &entry, &text );
+		if( rc != LDAP_SUCCESS ) {
+			send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
+			goto cleanup;
+		}
+
+	} else if ( strcasecmp( ndn.bv_val, SLAPD_SCHEMA_DN ) == 0 ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
+			"do_compare: conn %d  dn (%s) attr(%s) value (%s)\n",
+			conn->c_connid, pdn.bv_val, ava.aa_desc->ad_cname.bv_val,
+			ava.aa_value.bv_val ));
+#else
+		Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
+			pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
+#endif
+
+		Statslog( LDAP_DEBUG_STATS,
+			"conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
+			op->o_connid, op->o_opid, pdn.bv_val,
+			ava.aa_desc->ad_cname.bv_val, 0 );
+
+		rc = backend_check_restrictions( NULL, conn, op, NULL, &text ) ;
+		if( rc != LDAP_SUCCESS ) {
+			send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
+			rc = 0;
+			goto cleanup;
+		}
+
+		rc = schema_info( &entry, &text );
+		if( rc != LDAP_SUCCESS ) {
+			send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
+			rc = 0;
+			goto cleanup;
+		}
+	}
+
+	if( entry ) {
+		rc = compare_entry( conn, op, entry, &ava );
+		entry_free( entry );
 
-	ndn = dn_normalize_case( ndn );
+		send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
 
-	Statslog( LDAP_DEBUG_STATS, "conn=%d op=%d CMP dn=\"%s\" attr=\"%s\"\n",
-	    conn->c_connid, op->o_opid, ndn, ava.ava_type, 0 );
+		if( rc == LDAP_COMPARE_TRUE || rc == LDAP_COMPARE_FALSE ) {
+			rc = 0;
+		}
+
+		goto cleanup;
+	}
+
+	manageDSAit = get_manageDSAit( op );
 
 	/*
 	 * We could be serving multiple database backends.  Select the
 	 * appropriate one, or send a referral to our "referral server"
 	 * if we don't hold it.
 	 */
-	if ( (be = select_backend( ndn )) == NULL ) {
-		free( ndn );
-		ava_free( &ava, 0 );
+	if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
+		BerVarray ref = referral_rewrite( default_referral,
+			NULL, &pdn, LDAP_SCOPE_DEFAULT );
+
+		send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+			NULL, NULL, ref ? ref : default_referral, NULL );
 
-		send_ldap_result( conn, op, rc = LDAP_PARTIAL_RESULTS, NULL,
-		    default_referral );
-		return 1;
+		ber_bvarray_free( ref );
+		rc = 0;
+		goto cleanup;
 	}
 
-	/* alias suffix if approp */
-	ndn = suffixAlias( ndn, op, be );
+	/* check restrictions */
+	rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
+	if( rc != LDAP_SUCCESS ) {
+		send_ldap_result( conn, op, rc,
+			NULL, text, NULL, NULL );
+		goto cleanup;
+	}
+
+	/* check for referrals */
+	rc = backend_check_referrals( be, conn, op, &pdn, &ndn );
+	if ( rc != LDAP_SUCCESS ) {
+		goto cleanup;
+	}
+
+#ifdef NEW_LOGGING
+	LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
+		"do_compare: conn %d	 dn (%s) attr(%s) value (%s)\n",
+		conn->c_connid, pdn.bv_val, ava.aa_desc->ad_cname.bv_val,
+		ava.aa_value.bv_val ));
+#else
+	Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
+	    pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
+#endif
+
+	Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
+	    op->o_connid, op->o_opid, pdn.bv_val,
+		ava.aa_desc->ad_cname.bv_val, 0 );
+
+
+	/* deref suffix alias if appropriate */
+	suffix_alias( be, &ndn );
 
 	if ( be->be_compare ) {
-		(*be->be_compare)( be, conn, op, ndn, &ava );
+		(*be->be_compare)( be, conn, op, &pdn, &ndn, &ava );
 	} else {
-		send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM, NULL,
-		    "Function not implemented" );
+		send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+			NULL, "operation not supported within namingContext",
+			NULL, NULL );
+	}
+
+cleanup:
+	free( pdn.bv_val );
+	free( ndn.bv_val );
+	if ( ava.aa_value.bv_val ) free( ava.aa_value.bv_val );
+
+	return rc;
+}
+
+static int compare_entry(
+	Connection *conn,
+	Operation *op,
+	Entry *e,
+	AttributeAssertion *ava )
+{
+	int rc = LDAP_NO_SUCH_ATTRIBUTE;
+	Attribute *a;
+
+	if ( ! access_allowed( NULL, conn, op, e,
+		ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
+	{	
+		return LDAP_INSUFFICIENT_ACCESS;
 	}
 
-	free( ndn );
-	ava_free( &ava, 0 );
+	for(a = attrs_find( e->e_attrs, ava->aa_desc );
+		a != NULL;
+		a = attrs_find( a->a_next, ava->aa_desc ))
+	{
+		rc = LDAP_COMPARE_FALSE;
+
+		if ( value_find( ava->aa_desc, a->a_vals, &ava->aa_value ) == 0 ) {
+			rc = LDAP_COMPARE_TRUE;
+			break;
+		}
+	}
 
 	return rc;
 }