1 /*	$NetBSD: creds.c,v 1.1.1.1 2011/04/13 18:14:47 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 2006 Kungliga Tekniska Högskolan
5  * (Royal Institute of Technology, Stockholm, Sweden).
6  * All rights reserved.
7  *
8  * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  *
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  *
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * 3. Neither the name of the Institute nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  */
37 
38 #include "ntlm.h"
39 
40 OM_uint32 _gss_ntlm_inquire_cred
41            (OM_uint32 * minor_status,
42             const gss_cred_id_t cred_handle,
43             gss_name_t * name,
44             OM_uint32 * lifetime,
45             gss_cred_usage_t * cred_usage,
46             gss_OID_set * mechanisms
47            )
48 {
49     OM_uint32 ret, junk;
50 
51     *minor_status = 0;
52 
53     if (cred_handle == NULL)
54 	return GSS_S_NO_CRED;
55 
56     if (name) {
57 	ret = _gss_ntlm_duplicate_name(minor_status,
58 				       (gss_name_t)cred_handle,
59 				       name);
60 	if (ret)
61 	    goto out;
62     }
63     if (lifetime)
64 	*lifetime = GSS_C_INDEFINITE;
65     if (cred_usage)
66 	*cred_usage = 0;
67     if (mechanisms)
68 	*mechanisms = GSS_C_NO_OID_SET;
69 
70     if (cred_handle == GSS_C_NO_CREDENTIAL)
71 	return GSS_S_NO_CRED;
72 
73     if (mechanisms) {
74         ret = gss_create_empty_oid_set(minor_status, mechanisms);
75         if (ret)
76 	    goto out;
77 	ret = gss_add_oid_set_member(minor_status,
78 				     GSS_NTLM_MECHANISM,
79 				     mechanisms);
80         if (ret)
81 	    goto out;
82     }
83 
84     return GSS_S_COMPLETE;
85 out:
86     gss_release_oid_set(&junk, mechanisms);
87     return ret;
88 }
89 
90 OM_uint32
91 _gss_ntlm_destroy_cred(OM_uint32 *minor_status,
92 		       gss_cred_id_t *cred_handle)
93 {
94     krb5_error_code ret;
95     krb5_storage *request, *response;
96     krb5_data response_data;
97     krb5_context context;
98     ntlm_cred cred;
99 
100     if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL)
101 	return GSS_S_COMPLETE;
102 
103     cred = (ntlm_cred)*cred_handle;
104 
105     ret = krb5_init_context(&context);
106     if (ret) {
107 	*minor_status = ret;
108 	return GSS_S_FAILURE;
109     }
110 
111     ret = krb5_kcm_storage_request(context, KCM_OP_DEL_NTLM_CRED, &request);
112     if (ret)
113 	goto out;
114 
115     ret = krb5_store_stringz(request, cred->username);
116     if (ret)
117 	goto out;
118 
119     ret = krb5_store_stringz(request, cred->domain);
120     if (ret)
121 	goto out;
122 
123     ret = krb5_kcm_call(context, request, &response, &response_data);
124     if (ret)
125 	goto out;
126 
127     krb5_storage_free(request);
128     krb5_storage_free(response);
129     krb5_data_free(&response_data);
130 
131  out:
132     krb5_free_context(context);
133     if (ret) {
134 	*minor_status = ret;
135 	return GSS_S_FAILURE;
136     }
137 
138     return _gss_ntlm_release_cred(minor_status, cred_handle);
139 }
140