xref: /freebsd/sys/kgssapi/gss_release_cred.c (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
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/jail.h>
32 #include <sys/kernel.h>
33 #include <sys/kobj.h>
34 #include <sys/lock.h>
35 #include <sys/malloc.h>
36 #include <sys/mutex.h>
37 
38 #include <kgssapi/gssapi.h>
39 #include <kgssapi/gssapi_impl.h>
40 
41 #include "gssd.h"
42 
43 OM_uint32
44 gss_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle)
45 {
46 	struct release_cred_res res;
47 	struct release_cred_args args;
48 	enum clnt_stat stat;
49 	CLIENT *cl;
50 
51 	*minor_status = 0;
52 
53 	KGSS_CURVNET_SET_QUIET(KGSS_TD_TO_VNET(curthread));
54 	if (!KGSS_VNET(kgss_gssd_handle)) {
55 		KGSS_CURVNET_RESTORE();
56 		return (GSS_S_FAILURE);
57 	}
58 	KGSS_CURVNET_RESTORE();
59 
60 	if (*cred_handle) {
61 		args.cred = (*cred_handle)->handle;
62 
63 		cl = kgss_gssd_client();
64 		if (cl == NULL)
65 			return (GSS_S_FAILURE);
66 		stat = gssd_release_cred_1(&args, &res, cl);
67 		CLNT_RELEASE(cl);
68 		if (stat != RPC_SUCCESS) {
69 			*minor_status = stat;
70 			return (GSS_S_FAILURE);
71 		}
72 
73 		free((*cred_handle), M_GSSAPI);
74 		*cred_handle = NULL;
75 
76 		*minor_status = res.minor_status;
77 		return (res.major_status);
78 	}
79 
80 	return (GSS_S_COMPLETE);
81 }
82