Line data Source code
1 : /*
2 : * Copyright (c) 2000 - 2001, 2003 Kungliga Tekniska Högskolan
3 : * (Royal Institute of Technology, Stockholm, Sweden).
4 : * All rights reserved.
5 : *
6 : * Redistribution and use in source and binary forms, with or without
7 : * modification, are permitted provided that the following conditions
8 : * are met:
9 : *
10 : * 1. Redistributions of source code must retain the above copyright
11 : * notice, this list of conditions and the following disclaimer.
12 : *
13 : * 2. Redistributions in binary form must reproduce the above copyright
14 : * notice, this list of conditions and the following disclaimer in the
15 : * documentation and/or other materials provided with the distribution.
16 : *
17 : * 3. Neither the name of the Institute nor the names of its contributors
18 : * may be used to endorse or promote products derived from this software
19 : * without specific prior written permission.
20 : *
21 : * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 : * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 : * SUCH DAMAGE.
32 : */
33 :
34 : #include "gsskrb5_locl.h"
35 :
36 : #if 0
37 : OM_uint32
38 : gss_krb5_copy_ccache(OM_uint32 *minor_status,
39 : krb5_context context,
40 : gss_cred_id_t cred,
41 : krb5_ccache out)
42 : {
43 : krb5_error_code kret;
44 :
45 : HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
46 :
47 : if (cred->ccache == NULL) {
48 : HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
49 : *minor_status = EINVAL;
50 : return GSS_S_FAILURE;
51 : }
52 :
53 : kret = krb5_cc_copy_cache(context, cred->ccache, out);
54 : HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
55 : if (kret) {
56 : *minor_status = kret;
57 : return GSS_S_FAILURE;
58 : }
59 : *minor_status = 0;
60 : return GSS_S_COMPLETE;
61 : }
62 : #endif
63 :
64 :
65 : /*
66 : * WARNING: Takes ownership of `id'. Because MEMORY:anonymous is now not
67 : * linked into to the MEMORY ccache namespace, we can't use krb5_cc_resolve()
68 : * with the cache's name anymore. We need a krb5_cc_clone() or some such, with
69 : * attendant new method for ccops. Or we could create a new MEMORY:anonymous
70 : * ccache and copy all the creds from `id' into it. But we know callers of
71 : * this function don't need `id' after calling it, so for now we'll just take
72 : * ownershipd of it.
73 : */
74 : OM_uint32
75 101488 : _gsskrb5_krb5_import_cred(OM_uint32 *minor_status,
76 : krb5_ccache *id,
77 : krb5_principal keytab_principal,
78 : krb5_keytab keytab,
79 : gss_cred_id_t *cred)
80 : {
81 : krb5_context context;
82 : krb5_error_code kret;
83 : gsskrb5_cred handle;
84 : OM_uint32 ret;
85 101488 : int id_given = (*id != NULL);
86 :
87 101488 : *cred = NULL;
88 :
89 101488 : GSSAPI_KRB5_INIT (&context);
90 :
91 101488 : handle = calloc(1, sizeof(*handle));
92 101488 : if (handle == NULL) {
93 0 : _gsskrb5_clear_status ();
94 0 : *minor_status = ENOMEM;
95 0 : return (GSS_S_FAILURE);
96 : }
97 : HEIMDAL_MUTEX_init(&handle->cred_id_mutex);
98 :
99 101488 : handle->usage = 0;
100 101488 : handle->destination_realm = NULL;
101 :
102 101488 : if (*id) {
103 : time_t now;
104 : OM_uint32 left;
105 :
106 51279 : handle->usage |= GSS_C_INITIATE;
107 :
108 51279 : kret = krb5_cc_get_principal(context, *id,
109 : &handle->principal);
110 51279 : if (kret) {
111 224 : free(handle);
112 224 : *minor_status = kret;
113 448 : return GSS_S_FAILURE;
114 : }
115 :
116 51055 : if (keytab_principal) {
117 : krb5_boolean match;
118 :
119 0 : match = krb5_principal_compare(context,
120 0 : handle->principal,
121 : keytab_principal);
122 0 : if (match == FALSE) {
123 0 : krb5_free_principal(context, handle->principal);
124 0 : free(handle);
125 0 : _gsskrb5_clear_status ();
126 0 : *minor_status = EINVAL;
127 0 : return GSS_S_FAILURE;
128 : }
129 : }
130 :
131 51055 : krb5_timeofday(context, &now);
132 51055 : ret = __gsskrb5_ccache_lifetime(minor_status,
133 : context,
134 : *id,
135 : handle->principal,
136 : &left);
137 51055 : if (ret != GSS_S_COMPLETE) {
138 0 : krb5_free_principal(context, handle->principal);
139 0 : free(handle);
140 0 : return ret;
141 : }
142 51055 : handle->endtime = now + left;
143 :
144 51055 : handle->ccache = *id;
145 51055 : *id = NULL;
146 : }
147 :
148 :
149 101264 : if (keytab) {
150 : char *str;
151 :
152 50209 : handle->usage |= GSS_C_ACCEPT;
153 :
154 50209 : if (keytab_principal && handle->principal == NULL) {
155 48802 : kret = krb5_copy_principal(context,
156 : keytab_principal,
157 : &handle->principal);
158 48802 : if (kret)
159 0 : goto out;
160 : }
161 :
162 50209 : kret = krb5_kt_get_full_name(context, keytab, &str);
163 50209 : if (kret)
164 0 : goto out;
165 :
166 50209 : kret = krb5_kt_resolve(context, str, &handle->keytab);
167 50209 : free(str);
168 50209 : if (kret)
169 0 : goto out;
170 : }
171 :
172 :
173 101264 : if (id_given || keytab) {
174 101264 : ret = gss_create_empty_oid_set(minor_status, &handle->mechanisms);
175 101264 : if (ret == GSS_S_COMPLETE)
176 101264 : ret = gss_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM,
177 : &handle->mechanisms);
178 101264 : if (ret != GSS_S_COMPLETE) {
179 0 : kret = *minor_status;
180 0 : goto out;
181 : }
182 : }
183 :
184 101264 : *minor_status = 0;
185 101264 : *cred = (gss_cred_id_t)handle;
186 101264 : return GSS_S_COMPLETE;
187 :
188 0 : out:
189 0 : gss_release_oid_set(minor_status, &handle->mechanisms);
190 0 : if (handle->ccache)
191 0 : krb5_cc_close(context, handle->ccache);
192 0 : if (handle->keytab)
193 0 : krb5_kt_close(context, handle->keytab);
194 0 : if (handle->principal)
195 0 : krb5_free_principal(context, handle->principal);
196 : HEIMDAL_MUTEX_destroy(&handle->cred_id_mutex);
197 0 : free(handle);
198 0 : *minor_status = kret;
199 0 : return GSS_S_FAILURE;
200 : }
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