X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fcompare.c;h=b8c93fc132ebc05a13eff6ced07f86349cb7fbb3;hb=ae63be3894c799771d0ccabec1e376c7478cd263;hp=88a63e8b21b21f693a6f11e5aba988149b75592c;hpb=7e6ad5100c2702b1d56a285bdfb341ddf38c0d76;p=openldap

diff --git a/servers/slapd/compare.c b/servers/slapd/compare.c
index 88a63e8b21..b8c93fc132 100644
--- a/servers/slapd/compare.c
+++ b/servers/slapd/compare.c
@@ -1,3 +1,8 @@
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*
  * Copyright (c) 1995 Regents of the University of Michigan.
  * All rights reserved.
@@ -13,21 +18,29 @@
 #include "portable.h"
 
 #include <stdio.h>
-
 #include <ac/socket.h>
 
+#include "ldap_pvt.h"
 #include "slap.h"
 
-void
+int
 do_compare(
     Connection	*conn,
     Operation	*op
 )
 {
-	char	*dn;
-	Ava	ava;
-	int	rc;
+	char	*dn = NULL, *ndn=NULL;
+	struct berval desc;
+	struct berval value;
+	struct berval *nvalue;
+	AttributeAssertion ava;
 	Backend	*be;
+	int rc = LDAP_SUCCESS;
+	const char *text = NULL;
+
+	ava.aa_desc = NULL;
+	desc.bv_val = NULL;
+	value.bv_val = NULL;
 
 	Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
 
@@ -43,42 +56,118 @@ do_compare(
 	 *	}
 	 */
 
-	if ( ber_scanf( op->o_ber, "{a{ao}}", &dn, &ava.ava_type,
-	    &ava.ava_value ) == LBER_ERROR ) {
+	if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
 		Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
-		send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL, "" );
-		return;
+		send_ldap_disconnect( conn, op,
+			LDAP_PROTOCOL_ERROR, "decoding error" );
+		return SLAPD_DISCONNECT;
 	}
-	value_normalize( ava.ava_value.bv_val, attr_syntax( ava.ava_type ) );
-	dn_normalize( dn );
 
-	Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
-	    dn, ava.ava_type, ava.ava_value.bv_val );
+	if ( ber_scanf( op->o_ber, "{oo}", &desc, &value ) == LBER_ERROR ) {
+		Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
+		send_ldap_disconnect( conn, op,
+			LDAP_PROTOCOL_ERROR, "decoding error" );
+		rc = SLAPD_DISCONNECT;
+		goto cleanup;
+	}
 
-	Statslog( LDAP_DEBUG_STATS, "conn=%d op=%d CMP dn=\"%s\" attr=\"%s\"\n",
-	    conn->c_connid, op->o_opid, dn, ava.ava_type, 0 );
+	if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
+		Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
+		send_ldap_disconnect( conn, op,
+			LDAP_PROTOCOL_ERROR, "decoding error" );
+		rc = SLAPD_DISCONNECT;
+		goto cleanup;
+	}
+
+	if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+		Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
+		goto cleanup;
+	} 
+
+	ndn = ch_strdup( dn );
+
+	if( dn_normalize( ndn ) == NULL ) {
+		Debug( LDAP_DEBUG_ANY, "do_compare: invalid dn (%s)\n", dn, 0, 0 );
+		send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+		    "invalid DN", NULL, NULL );
+		goto cleanup;
+	}
 
 	/*
 	 * 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( dn )) == NULL ) {
-		free( dn );
-		ava_free( &ava, 0 );
+	if ( (be = select_backend( ndn )) == NULL ) {
+		send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+			NULL, NULL, default_referral, NULL );
+		rc = 1;
+		goto cleanup;
+	}
+
+	/* make sure this backend recongizes critical controls */
+	rc = backend_check_controls( be, conn, op, &text ) ;
+	if( rc != LDAP_SUCCESS ) {
+		send_ldap_result( conn, op, rc,
+			NULL, text, NULL, NULL );
+		goto cleanup;
+	}
 
-		send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
-		    default_referral );
-		return;
+	/* check for referrals */
+	rc = backend_check_referrals( be, conn, op, dn, ndn );
+	if ( rc != LDAP_SUCCESS ) {
+		goto cleanup;
 	}
 
-	if ( be->be_compare != NULL ) {
-		(*be->be_compare)( be, conn, op, dn, &ava );
+	rc = slap_bv2ad( &desc, &ava.aa_desc, &text );
+	if( rc != LDAP_SUCCESS ) {
+		send_ldap_result( conn, op, rc, NULL,
+		    text, NULL, NULL );
+		goto cleanup;
+	}
+
+	if( !ava.aa_desc->ad_type->sat_equality ) {
+		/* no equality matching rule */
+		send_ldap_result( conn, op, rc = LDAP_INAPPROPRIATE_MATCHING, NULL,
+		    "no equality matching rule defined", NULL, NULL );
+		goto cleanup;
+	}
+
+	rc = value_normalize( ava.aa_desc, SLAP_MR_EQUALITY, &value, &nvalue, &text );
+
+	if( rc != LDAP_SUCCESS ) {
+		send_ldap_result( conn, op, rc, NULL,
+		    text, NULL, NULL );
+		goto cleanup;
+	}
+
+	ava.aa_value = nvalue;
+
+	Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
+	    dn, ava.aa_desc->ad_cname->bv_val, ava.aa_value->bv_val );
+
+	Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
+	    op->o_connid, op->o_opid, dn, ava.aa_desc->ad_cname->bv_val, 0 );
+
+
+	/* deref suffix alias if appropriate */
+	ndn = suffix_alias( be, ndn );
+
+	if ( be->be_compare ) {
+		(*be->be_compare)( be, conn, op, dn, ndn, &ava );
 	} else {
-		send_ldap_result( conn, op, 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( dn );
-	ava_free( &ava, 0 );
+	free( ndn );
+	free( desc.bv_val );
+	free( value.bv_val );
+	if( ava.aa_desc != NULL ) {
+		ad_free( ava.aa_desc, 1 );
+	}
+
+	return rc;
 }