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
33 #include "spnego_locl.h"
34
35 OM_uint32 GSSAPI_CALLCONV
_gss_spnego_release_cred(OM_uint32 * minor_status,gss_cred_id_t * cred_handle)36 _gss_spnego_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle)
37 {
38 OM_uint32 ret;
39
40 *minor_status = 0;
41
42 if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL)
43 return GSS_S_COMPLETE;
44
45 ret = gss_release_cred(minor_status, cred_handle);
46
47 *cred_handle = GSS_C_NO_CREDENTIAL;
48
49 return ret;
50 }
51
52 /*
53 * For now, just a simple wrapper that avoids recursion. When
54 * we support gss_{get,set}_neg_mechs() we will need to expose
55 * more functionality.
56 */
_gss_spnego_acquire_cred(OM_uint32 * minor_status,const gss_name_t desired_name,OM_uint32 time_req,const gss_OID_set desired_mechs,gss_cred_usage_t cred_usage,gss_cred_id_t * output_cred_handle,gss_OID_set * actual_mechs,OM_uint32 * time_rec)57 OM_uint32 GSSAPI_CALLCONV _gss_spnego_acquire_cred
58 (OM_uint32 *minor_status,
59 const gss_name_t desired_name,
60 OM_uint32 time_req,
61 const gss_OID_set desired_mechs,
62 gss_cred_usage_t cred_usage,
63 gss_cred_id_t * output_cred_handle,
64 gss_OID_set * actual_mechs,
65 OM_uint32 * time_rec
66 )
67 {
68 const spnego_name dname = (const spnego_name)desired_name;
69 gss_name_t name = GSS_C_NO_NAME;
70 OM_uint32 ret, tmp;
71 gss_OID_set_desc actual_desired_mechs;
72 gss_OID_set mechs;
73 size_t i, j;
74
75 *output_cred_handle = GSS_C_NO_CREDENTIAL;
76
77 if (dname) {
78 ret = gss_import_name(minor_status, &dname->value, &dname->type, &name);
79 if (ret) {
80 return ret;
81 }
82 }
83
84 ret = gss_indicate_mechs(minor_status, &mechs);
85 if (ret != GSS_S_COMPLETE) {
86 gss_release_name(minor_status, &name);
87 return ret;
88 }
89
90 /* Remove ourselves from this list */
91 actual_desired_mechs.count = mechs->count;
92 actual_desired_mechs.elements = malloc(actual_desired_mechs.count *
93 sizeof(gss_OID_desc));
94 if (actual_desired_mechs.elements == NULL) {
95 *minor_status = ENOMEM;
96 ret = GSS_S_FAILURE;
97 goto out;
98 }
99
100 for (i = 0, j = 0; i < mechs->count; i++) {
101 if (gss_oid_equal(&mechs->elements[i], GSS_SPNEGO_MECHANISM))
102 continue;
103
104 actual_desired_mechs.elements[j] = mechs->elements[i];
105 j++;
106 }
107 actual_desired_mechs.count = j;
108
109 ret = gss_acquire_cred(minor_status, name,
110 time_req, &actual_desired_mechs,
111 cred_usage,
112 output_cred_handle,
113 actual_mechs, time_rec);
114 if (ret != GSS_S_COMPLETE)
115 goto out;
116
117 out:
118 gss_release_name(minor_status, &name);
119 gss_release_oid_set(&tmp, &mechs);
120 if (actual_desired_mechs.elements != NULL) {
121 free(actual_desired_mechs.elements);
122 }
123 if (ret != GSS_S_COMPLETE) {
124 _gss_spnego_release_cred(&tmp, output_cred_handle);
125 }
126
127 return ret;
128 }
129
_gss_spnego_inquire_cred(OM_uint32 * minor_status,const gss_cred_id_t cred_handle,gss_name_t * name,OM_uint32 * lifetime,gss_cred_usage_t * cred_usage,gss_OID_set * mechanisms)130 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred
131 (OM_uint32 * minor_status,
132 const gss_cred_id_t cred_handle,
133 gss_name_t * name,
134 OM_uint32 * lifetime,
135 gss_cred_usage_t * cred_usage,
136 gss_OID_set * mechanisms
137 )
138 {
139 spnego_name sname = NULL;
140 OM_uint32 ret;
141
142 if (cred_handle == GSS_C_NO_CREDENTIAL) {
143 *minor_status = 0;
144 return GSS_S_NO_CRED;
145 }
146
147 if (name) {
148 sname = calloc(1, sizeof(*sname));
149 if (sname == NULL) {
150 *minor_status = ENOMEM;
151 return GSS_S_FAILURE;
152 }
153 }
154
155 ret = gss_inquire_cred(minor_status,
156 cred_handle,
157 sname ? &sname->mech : NULL,
158 lifetime,
159 cred_usage,
160 mechanisms);
161 if (ret) {
162 if (sname)
163 free(sname);
164 return ret;
165 }
166 if (name)
167 *name = (gss_name_t)sname;
168
169 return ret;
170 }
171
_gss_spnego_inquire_cred_by_mech(OM_uint32 * minor_status,const gss_cred_id_t cred_handle,const gss_OID mech_type,gss_name_t * name,OM_uint32 * initiator_lifetime,OM_uint32 * acceptor_lifetime,gss_cred_usage_t * cred_usage)172 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred_by_mech (
173 OM_uint32 * minor_status,
174 const gss_cred_id_t cred_handle,
175 const gss_OID mech_type,
176 gss_name_t * name,
177 OM_uint32 * initiator_lifetime,
178 OM_uint32 * acceptor_lifetime,
179 gss_cred_usage_t * cred_usage
180 )
181 {
182 spnego_name sname = NULL;
183 OM_uint32 ret;
184
185 if (cred_handle == GSS_C_NO_CREDENTIAL) {
186 *minor_status = 0;
187 return GSS_S_NO_CRED;
188 }
189
190 if (name) {
191 sname = calloc(1, sizeof(*sname));
192 if (sname == NULL) {
193 *minor_status = ENOMEM;
194 return GSS_S_FAILURE;
195 }
196 }
197
198 ret = gss_inquire_cred_by_mech(minor_status,
199 cred_handle,
200 mech_type,
201 sname ? &sname->mech : NULL,
202 initiator_lifetime,
203 acceptor_lifetime,
204 cred_usage);
205
206 if (ret) {
207 if (sname)
208 free(sname);
209 return ret;
210 }
211 if (name)
212 *name = (gss_name_t)sname;
213
214 return GSS_S_COMPLETE;
215 }
216
_gss_spnego_inquire_cred_by_oid(OM_uint32 * minor_status,const gss_cred_id_t cred_handle,const gss_OID desired_object,gss_buffer_set_t * data_set)217 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred_by_oid
218 (OM_uint32 * minor_status,
219 const gss_cred_id_t cred_handle,
220 const gss_OID desired_object,
221 gss_buffer_set_t *data_set)
222 {
223 OM_uint32 ret;
224
225 if (cred_handle == GSS_C_NO_CREDENTIAL) {
226 *minor_status = 0;
227 return GSS_S_NO_CRED;
228 }
229
230 ret = gss_inquire_cred_by_oid(minor_status,
231 cred_handle,
232 desired_object,
233 data_set);
234
235 return ret;
236 }
237
238 OM_uint32 GSSAPI_CALLCONV
_gss_spnego_set_cred_option(OM_uint32 * minor_status,gss_cred_id_t * cred_handle,const gss_OID object,const gss_buffer_t value)239 _gss_spnego_set_cred_option (OM_uint32 *minor_status,
240 gss_cred_id_t *cred_handle,
241 const gss_OID object,
242 const gss_buffer_t value)
243 {
244 if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL) {
245 *minor_status = 0;
246 return GSS_S_NO_CRED;
247 }
248
249 return gss_set_cred_option(minor_status,
250 cred_handle,
251 object,
252 value);
253 }
254
255 #if 0
256
257 OM_uint32 GSSAPI_CALLCONV
258 _gss_spnego_export_cred (OM_uint32 *minor_status,
259 gss_cred_id_t cred_handle,
260 gss_buffer_t value)
261 {
262 return gss_export_cred(minor_status, cred_handle, value);
263 }
264
265 OM_uint32 GSSAPI_CALLCONV
266 _gss_spnego_import_cred (OM_uint32 *minor_status,
267 gss_buffer_t value,
268 gss_cred_id_t *cred_handle)
269 {
270 return gss_import_cred(minor_status, value, cred_handle);
271 }
272
273 #endif
274