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