gss_release_cred.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
 * Authors: Doug Rabson <[email protected]>
 * Developed with Red Inc: Alfred Perlstein <[email protected]>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/param.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/kobj.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>

#include <kgssapi/gssapi.h>
#include <kgssapi/gssapi_impl.h>

#include "gssd.h"

OM_uint32
gss_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle)
{
	struct release_cred_res res;
	struct release_cred_args args;
	enum clnt_stat stat;
	CLIENT *cl;

	*minor_status = 0;

	KGSS_CURVNET_SET_QUIET(KGSS_TD_TO_VNET(curthread));
	if (!KGSS_VNET(kgss_gssd_handle)) {
		KGSS_CURVNET_RESTORE();
		return (GSS_S_FAILURE);
	}
	KGSS_CURVNET_RESTORE();

	if (*cred_handle) {
		args.cred = (*cred_handle)->handle;

		cl = kgss_gssd_client();
		if (cl == NULL)
			return (GSS_S_FAILURE);
		stat = gssd_release_cred_1(&args, &res, cl);
		CLNT_RELEASE(cl);
		if (stat != RPC_SUCCESS) {
			*minor_status = stat;
			return (GSS_S_FAILURE);
		}

		free((*cred_handle), M_GSSAPI);
		*cred_handle = NULL;

		*minor_status = res.minor_status;
		return (res.major_status);
	}

	return (GSS_S_COMPLETE);
}