1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 2004, PADL Software Pty Ltd.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  *
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  *
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * 3. Neither the name of PADL Software nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 /* RCSID("$Id: gss_set_cred_option.c 21126 2007-06-18 20:19:59Z lha $"); */
35 
36 #include <gssapi/gssapi.h>
37 #include <stdlib.h>
38 #include <errno.h>
39 
40 #include "mech_switch.h"
41 #include "cred.h"
42 
43 OM_uint32
44 gss_set_cred_option (OM_uint32 *minor_status,
45 		     gss_cred_id_t *cred_handle,
46 		     const gss_OID object,
47 		     const gss_buffer_t value)
48 {
49 	struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
50 	OM_uint32	major_status = GSS_S_COMPLETE;
51 	struct _gss_mechanism_cred *mc;
52 	int one_ok = 0;
53 
54 	*minor_status = 0;
55 
56 	_gss_load_mech();
57 
58 	if (cred == NULL) {
59 		struct _gss_mech_switch *m;
60 
61 		cred = malloc(sizeof(*cred));
62 		if (cred == NULL)
63 		    return GSS_S_FAILURE;
64 
65 		SLIST_INIT(&cred->gc_mc);
66 
67 		SLIST_FOREACH(m, &_gss_mechs, gm_link) {
68 
69 			if (m->gm_set_cred_option == NULL)
70 				continue;
71 
72 			mc = malloc(sizeof(*mc));
73 			if (mc == NULL) {
74 			    *cred_handle = (gss_cred_id_t)cred;
75 			    gss_release_cred(minor_status, cred_handle);
76 			    *minor_status = ENOMEM;
77 			    return GSS_S_FAILURE;
78 			}
79 
80 			mc->gmc_mech = m;
81 			mc->gmc_mech_oid = &m->gm_mech_oid;
82 			mc->gmc_cred = GSS_C_NO_CREDENTIAL;
83 
84 			major_status = m->gm_set_cred_option(
85 			    minor_status, &mc->gmc_cred, object, value);
86 
87 			if (major_status) {
88 				free(mc);
89 				continue;
90 			}
91 			one_ok = 1;
92 			SLIST_INSERT_HEAD(&cred->gc_mc, mc, gmc_link);
93 		}
94 		*cred_handle = (gss_cred_id_t)cred;
95 		if (!one_ok) {
96 			OM_uint32 junk;
97 			gss_release_cred(&junk, cred_handle);
98 		}
99 	} else {
100 		struct _gss_mech_switch *m;
101 
102 		SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
103 			m = mc->gmc_mech;
104 
105 			if (m == NULL)
106 				return GSS_S_BAD_MECH;
107 
108 			if (m->gm_set_cred_option == NULL)
109 				continue;
110 
111 			major_status = m->gm_set_cred_option(minor_status,
112 			    &mc->gmc_cred, object, value);
113 			if (major_status == GSS_S_COMPLETE)
114 				one_ok = 1;
115 			else
116 				_gss_mg_error(m, major_status, *minor_status);
117 
118 		}
119 	}
120 	if (one_ok) {
121 		*minor_status = 0;
122 		return (GSS_S_COMPLETE);
123 	}
124 	return (major_status);
125 }
126 
127