1/*
2 * Copyright (c) 2006 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
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 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include "gssdigest.h"
37
38OM_uint32 _gss_scram_inquire_cred
39           (OM_uint32 * minor_status,
40            const gss_cred_id_t cred_handle,
41            gss_name_t * name,
42            OM_uint32 * lifetime,
43            gss_cred_usage_t * cred_usage,
44            gss_OID_set * mechanisms
45           )
46{
47    OM_uint32 ret, junk;
48
49    *minor_status = 0;
50
51    if (cred_handle == NULL)
52	return GSS_S_NO_CRED;
53
54    if (name) {
55	ret = _gss_scram_duplicate_name(minor_status,
56				       (gss_name_t)cred_handle,
57				       name);
58	if (ret)
59	    goto out;
60    }
61    if (lifetime)
62	*lifetime = GSS_C_INDEFINITE;
63    if (cred_usage)
64	*cred_usage = 0;
65    if (mechanisms)
66	*mechanisms = GSS_C_NO_OID_SET;
67
68    if (cred_handle == GSS_C_NO_CREDENTIAL)
69	return GSS_S_NO_CRED;
70
71    if (mechanisms) {
72        ret = gss_create_empty_oid_set(minor_status, mechanisms);
73        if (ret)
74	    goto out;
75	ret = gss_add_oid_set_member(minor_status,
76				     GSS_SCRAM_MECHANISM,
77				     mechanisms);
78        if (ret)
79	    goto out;
80    }
81
82    return GSS_S_COMPLETE;
83out:
84    gss_release_oid_set(&junk, mechanisms);
85    return ret;
86}
87
88OM_uint32
89_gss_scram_destroy_cred(OM_uint32 *minor_status,
90		       gss_cred_id_t *cred_handle)
91{
92    krb5_error_code ret;
93    krb5_storage *request, *response;
94    krb5_data response_data;
95    krb5_context context;
96
97    if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL)
98	return GSS_S_COMPLETE;
99
100    ret = krb5_init_context(&context);
101    if (ret) {
102	*minor_status = ret;
103	return GSS_S_FAILURE;
104    }
105
106    ret = krb5_kcm_storage_request(context, KCM_OP_DEL_SCRAM_CRED, &request);
107    if (ret)
108	goto out;
109
110    ret = krb5_store_stringz(request, (char *)*cred_handle);
111    if (ret)
112	goto out;
113
114    ret = krb5_kcm_call(context, request, &response, &response_data);
115    if (ret)
116	goto out;
117
118    krb5_storage_free(request);
119    krb5_storage_free(response);
120    krb5_data_free(&response_data);
121
122 out:
123    krb5_free_context(context);
124    if (ret) {
125	*minor_status = ret;
126	return GSS_S_FAILURE;
127    }
128
129    return _gss_scram_release_cred(minor_status, cred_handle);
130}
131