1 /*	$NetBSD: copy_ccache.c,v 1.1.1.1 2011/04/13 18:14:44 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 2000 - 2001, 2003 Kungliga Tekniska Högskolan
5  * (Royal Institute of Technology, Stockholm, Sweden).
6  * 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 "gsskrb5_locl.h"
37 
38 #if 0
39 OM_uint32
40 gss_krb5_copy_ccache(OM_uint32 *minor_status,
41 		     krb5_context context,
42 		     gss_cred_id_t cred,
43 		     krb5_ccache out)
44 {
45     krb5_error_code kret;
46 
47     HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
48 
49     if (cred->ccache == NULL) {
50 	HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
51 	*minor_status = EINVAL;
52 	return GSS_S_FAILURE;
53     }
54 
55     kret = krb5_cc_copy_cache(context, cred->ccache, out);
56     HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
57     if (kret) {
58 	*minor_status = kret;
59 	return GSS_S_FAILURE;
60     }
61     *minor_status = 0;
62     return GSS_S_COMPLETE;
63 }
64 #endif
65 
66 
67 OM_uint32
68 _gsskrb5_krb5_import_cred(OM_uint32 *minor_status,
69 			  krb5_ccache id,
70 			  krb5_principal keytab_principal,
71 			  krb5_keytab keytab,
72 			  gss_cred_id_t *cred)
73 {
74     krb5_context context;
75     krb5_error_code kret;
76     gsskrb5_cred handle;
77     OM_uint32 ret;
78 
79     *cred = NULL;
80 
81     GSSAPI_KRB5_INIT (&context);
82 
83     handle = calloc(1, sizeof(*handle));
84     if (handle == NULL) {
85 	_gsskrb5_clear_status ();
86 	*minor_status = ENOMEM;
87         return (GSS_S_FAILURE);
88     }
89     HEIMDAL_MUTEX_init(&handle->cred_id_mutex);
90 
91     handle->usage = 0;
92 
93     if (id) {
94 	char *str;
95 
96 	handle->usage |= GSS_C_INITIATE;
97 
98 	kret = krb5_cc_get_principal(context, id,
99 				     &handle->principal);
100 	if (kret) {
101 	    free(handle);
102 	    *minor_status = kret;
103 	    return GSS_S_FAILURE;
104 	}
105 
106 	if (keytab_principal) {
107 	    krb5_boolean match;
108 
109 	    match = krb5_principal_compare(context,
110 					   handle->principal,
111 					   keytab_principal);
112 	    if (match == FALSE) {
113 		krb5_free_principal(context, handle->principal);
114 		free(handle);
115 		_gsskrb5_clear_status ();
116 		*minor_status = EINVAL;
117 		return GSS_S_FAILURE;
118 	    }
119 	}
120 
121 	ret = __gsskrb5_ccache_lifetime(minor_status,
122 					context,
123 					id,
124 					handle->principal,
125 					&handle->lifetime);
126 	if (ret != GSS_S_COMPLETE) {
127 	    krb5_free_principal(context, handle->principal);
128 	    free(handle);
129 	    return ret;
130 	}
131 
132 
133 	kret = krb5_cc_get_full_name(context, id, &str);
134 	if (kret)
135 	    goto out;
136 
137 	kret = krb5_cc_resolve(context, str, &handle->ccache);
138 	free(str);
139 	if (kret)
140 	    goto out;
141     }
142 
143 
144     if (keytab) {
145 	char *str;
146 
147 	handle->usage |= GSS_C_ACCEPT;
148 
149 	if (keytab_principal && handle->principal == NULL) {
150 	    kret = krb5_copy_principal(context,
151 				       keytab_principal,
152 				       &handle->principal);
153 	    if (kret)
154 		goto out;
155 	}
156 
157 	kret = krb5_kt_get_full_name(context, keytab, &str);
158 	if (kret)
159 	    goto out;
160 
161 	kret = krb5_kt_resolve(context, str, &handle->keytab);
162 	free(str);
163 	if (kret)
164 	    goto out;
165     }
166 
167 
168     if (id || keytab) {
169 	ret = gss_create_empty_oid_set(minor_status, &handle->mechanisms);
170 	if (ret == GSS_S_COMPLETE)
171 	    ret = gss_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM,
172 					 &handle->mechanisms);
173 	if (ret != GSS_S_COMPLETE) {
174 	    kret = *minor_status;
175 	    goto out;
176 	}
177     }
178 
179     *minor_status = 0;
180     *cred = (gss_cred_id_t)handle;
181     return GSS_S_COMPLETE;
182 
183 out:
184     gss_release_oid_set(minor_status, &handle->mechanisms);
185     if (handle->ccache)
186 	krb5_cc_close(context, handle->ccache);
187     if (handle->keytab)
188 	krb5_kt_close(context, handle->keytab);
189     if (handle->principal)
190 	krb5_free_principal(context, handle->principal);
191     HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
192     free(handle);
193     *minor_status = kret;
194     return GSS_S_FAILURE;
195 }
196