/* $OpenLDAP: pkg/ldap/libraries/libldap/bind.c,v 1.15.2.3 2003/03/03 17:10:04 kurt Exp $ */
/*
 * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
 */
/*  Portions
 *  Copyright (c) 1990 Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  bind.c
 */

/*
 *	BindRequest ::= SEQUENCE {
 *		version		INTEGER,
 *		name		DistinguishedName,	 -- who
 *		authentication	CHOICE {
 *			simple		[0] OCTET STRING -- passwd
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
 *			krbv42ldap	[1] OCTET STRING
 *			krbv42dsa	[2] OCTET STRING
#endif
 *			sasl		[3] SaslCredentials	-- LDAPv3
 *		}
 *	}
 *
 *	BindResponse ::= SEQUENCE {
 *		COMPONENTS OF LDAPResult,
 *		serverSaslCreds		OCTET STRING OPTIONAL -- LDAPv3
 *	}
 *
 */

#include "portable.h"

#include <stdio.h>

#include <ac/stdlib.h>

#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>

#include "ldap-int.h"
#include "ldap_log.h"

/*
 * ldap_bind - bind to the ldap server (and X.500).  The dn and password
 * of the entry to which to bind are supplied, along with the authentication
 * method to use.  The msgid of the bind request is returned on success,
 * -1 if there's trouble.  Note, the kerberos support assumes the user already
 * has a valid tgt for now.  ldap_result() should be called to find out the
 * outcome of the bind request.
 *
 * Example:
 *	ldap_bind( ld, "cn=manager, o=university of michigan, c=us", "secret",
 *	    LDAP_AUTH_SIMPLE )
 */

int
ldap_bind( LDAP *ld, LDAP_CONST char *dn, LDAP_CONST char *passwd, int authmethod )
{
#ifdef NEW_LOGGING
	LDAP_LOG ( OPERATION, ENTRY, "ldap_bind\n", 0, 0, 0 );
#else
	Debug( LDAP_DEBUG_TRACE, "ldap_bind\n", 0, 0, 0 );
#endif

	switch ( authmethod ) {
	case LDAP_AUTH_SIMPLE:
		return( ldap_simple_bind( ld, dn, passwd ) );

#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
	case LDAP_AUTH_KRBV41:
		return( ldap_kerberos_bind1( ld, dn ) );

	case LDAP_AUTH_KRBV42:
		return( ldap_kerberos_bind2( ld, dn ) );
#endif

	case LDAP_AUTH_SASL:
		/* user must use ldap_sasl_bind */
		/* FALL-THRU */

	default:
		ld->ld_errno = LDAP_AUTH_UNKNOWN;
		return( -1 );
	}
}

/*
 * ldap_bind_s - bind to the ldap server (and X.500).  The dn and password
 * of the entry to which to bind are supplied, along with the authentication
 * method to use.  This routine just calls whichever bind routine is
 * appropriate and returns the result of the bind (e.g. LDAP_SUCCESS or
 * some other error indication).  Note, the kerberos support assumes the
 * user already has a valid tgt for now.
 *
 * Examples:
 *	ldap_bind_s( ld, "cn=manager, o=university of michigan, c=us",
 *	    "secret", LDAP_AUTH_SIMPLE )
 *	ldap_bind_s( ld, "cn=manager, o=university of michigan, c=us",
 *	    NULL, LDAP_AUTH_KRBV4 )
 */
int
ldap_bind_s(
	LDAP *ld,
	LDAP_CONST char *dn,
	LDAP_CONST char *passwd,
	int authmethod )
{
#ifdef NEW_LOGGING
	LDAP_LOG ( OPERATION, ENTRY, "ldap_bind_s\n", 0, 0, 0 );
#else
	Debug( LDAP_DEBUG_TRACE, "ldap_bind_s\n", 0, 0, 0 );
#endif

	switch ( authmethod ) {
	case LDAP_AUTH_SIMPLE:
		return( ldap_simple_bind_s( ld, dn, passwd ) );

#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
	case LDAP_AUTH_KRBV4:
		return( ldap_kerberos_bind_s( ld, dn ) );

	case LDAP_AUTH_KRBV41:
		return( ldap_kerberos_bind1_s( ld, dn ) );

	case LDAP_AUTH_KRBV42:
		return( ldap_kerberos_bind2_s( ld, dn ) );
#endif

	case LDAP_AUTH_SASL:
		/* user must use ldap_sasl_bind */
		/* FALL-THRU */

	default:
		return( ld->ld_errno = LDAP_AUTH_UNKNOWN );
	}
}
