1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5 * Authors: Doug Rabson <dfr@rabson.org>
6 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/param.h>
31#include <sys/kernel.h>
32#include <sys/kobj.h>
33#include <sys/lock.h>
34#include <sys/malloc.h>
35#include <sys/mutex.h>
36#include <sys/proc.h>
37
38#include <kgssapi/gssapi.h>
39#include <kgssapi/gssapi_impl.h>
40
41#include "gssd.h"
42
43OM_uint32
44gss_acquire_cred(OM_uint32 *minor_status,
45    const gss_name_t desired_name,
46    OM_uint32 time_req,
47    const gss_OID_set desired_mechs,
48    gss_cred_usage_t cred_usage,
49    gss_cred_id_t *output_cred_handle,
50    gss_OID_set *actual_mechs,
51    OM_uint32 *time_rec)
52{
53	OM_uint32 major_status;
54	struct acquire_cred_res res;
55	struct acquire_cred_args args;
56	enum clnt_stat stat;
57	gss_cred_id_t cred;
58	int i;
59	CLIENT *cl;
60
61	*minor_status = 0;
62	cl = kgss_gssd_client();
63	if (cl == NULL)
64		return (GSS_S_FAILURE);
65
66	args.uid = curthread->td_ucred->cr_uid;
67	if (desired_name)
68		args.desired_name = desired_name->handle;
69	else
70		args.desired_name = 0;
71	args.time_req = time_req;
72	args.desired_mechs = desired_mechs;
73	args.cred_usage = cred_usage;
74
75	bzero(&res, sizeof(res));
76	stat = gssd_acquire_cred_1(&args, &res, cl);
77	CLNT_RELEASE(cl);
78	if (stat != RPC_SUCCESS) {
79		*minor_status = stat;
80		return (GSS_S_FAILURE);
81	}
82
83	if (res.major_status != GSS_S_COMPLETE) {
84		*minor_status = res.minor_status;
85		return (res.major_status);
86	}
87
88	cred = malloc(sizeof(struct _gss_cred_id_t), M_GSSAPI, M_WAITOK);
89	cred->handle = res.output_cred;
90	*output_cred_handle = cred;
91	if (actual_mechs) {
92		major_status = gss_create_empty_oid_set(minor_status,
93		    actual_mechs);
94		if (major_status)
95			return (major_status);
96		for (i = 0; i < res.actual_mechs->count; i++) {
97			major_status = gss_add_oid_set_member(minor_status,
98			    &res.actual_mechs->elements[i], actual_mechs);
99			if (major_status)
100				return (major_status);
101		}
102	}
103	if (time_rec)
104		*time_rec = res.time_rec;
105
106	xdr_free((xdrproc_t) xdr_acquire_cred_res, &res);
107
108	return (GSS_S_COMPLETE);
109}
110