gss_acquire_cred.c revision 184588 
1/*-
2 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
3 * Authors: Doug Rabson <dfr@rabson.org>
4 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__FBSDID("$FreeBSD: head/sys/kgssapi/gss_acquire_cred.c 184588 2008-11-03 10:38:00Z dfr $");
30
31#include <sys/param.h>
32#include <sys/kernel.h>
33#include <sys/kobj.h>
34#include <sys/malloc.h>
35#include <sys/proc.h>
36
37#include <kgssapi/gssapi.h>
38#include <kgssapi/gssapi_impl.h>
39
40#include "gssd.h"
41
42OM_uint32
43gss_acquire_cred(OM_uint32 *minor_status,
44    const gss_name_t desired_name,
45    OM_uint32 time_req,
46    const gss_OID_set desired_mechs,
47    gss_cred_usage_t cred_usage,
48    gss_cred_id_t *output_cred_handle,
49    gss_OID_set *actual_mechs,
50    OM_uint32 *time_rec)
51{
52	OM_uint32 major_status;
53	struct acquire_cred_res res;
54	struct acquire_cred_args args;
55	enum clnt_stat stat;
56	gss_cred_id_t cred;
57	int i;
58
59	if (!kgss_gssd_handle)
60		return (GSS_S_FAILURE);
61
62	args.uid = curthread->td_ucred->cr_uid;
63	if (desired_name)
64		args.desired_name = desired_name->handle;
65	else
66		args.desired_name = 0;
67	args.time_req = time_req;
68	args.desired_mechs = desired_mechs;
69	args.cred_usage = cred_usage;
70
71	bzero(&res, sizeof(res));
72	stat = gssd_acquire_cred_1(&args, &res, kgss_gssd_handle);
73	if (stat != RPC_SUCCESS) {
74		*minor_status = stat;
75		return (GSS_S_FAILURE);
76	}
77
78	if (res.major_status != GSS_S_COMPLETE) {
79		*minor_status = res.minor_status;
80		return (res.major_status);
81	}
82
83	*minor_status = 0;
84	cred = malloc(sizeof(struct _gss_cred_id_t), M_GSSAPI, M_WAITOK);
85	cred->handle = res.output_cred;
86	*output_cred_handle = cred;
87	if (actual_mechs) {
88		major_status = gss_create_empty_oid_set(minor_status,
89		    actual_mechs);
90		if (major_status)
91			return (major_status);
92		for (i = 0; i < res.actual_mechs->count; i++) {
93			major_status = gss_add_oid_set_member(minor_status,
94			    &res.actual_mechs->elements[i], actual_mechs);
95			if (major_status)
96				return (major_status);
97		}
98	}
99	if (time_rec)
100		*time_rec = res.time_rec;
101
102	xdr_free((xdrproc_t) xdr_acquire_cred_res, &res);
103
104	return (GSS_S_COMPLETE);
105}
106