2 * Copyright (c) 2005 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <gssapi/gssapi.h>
34 #include "mech_switch.h"
39 _gss_import_export_name(OM_uint32 *minor_status,
40 const gss_buffer_t input_name_buffer,
41 gss_name_t *output_name)
43 OM_uint32 major_status;
44 unsigned char *p = input_name_buffer->value;
45 size_t len = input_name_buffer->length;
47 gss_OID_desc mech_oid;
48 struct _gss_mech_switch *m;
49 struct _gss_name *name;
50 gss_name_t new_canonical_name;
56 * Make sure that TOK_ID is {4, 1}.
59 return (GSS_S_BAD_NAME);
60 if (p[0] != 4 || p[1] != 1)
61 return (GSS_S_BAD_NAME);
66 * Get the mech length and the name length and sanity
67 * check the size of of the buffer.
70 return (GSS_S_BAD_NAME);
71 t = (p[0] << 8) + p[1];
76 * Check the DER encoded OID to make sure it agrees with the
77 * length we just decoded.
79 if (p[0] != 6) /* 6=OID */
80 return (GSS_S_BAD_NAME);
91 mech_oid.length = (mech_oid.length << 8) | p[0];
97 mech_oid.length = p[0];
102 if (mech_oid.length != t)
103 return (GSS_S_BAD_NAME);
105 mech_oid.elements = p;
108 return (GSS_S_BAD_NAME);
112 t = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
117 return (GSS_S_BAD_NAME);
119 m = _gss_find_mech_switch(&mech_oid);
121 return (GSS_S_BAD_MECH);
124 * Ask the mechanism to import the name.
126 major_status = m->gm_import_name(minor_status,
127 input_name_buffer, GSS_C_NT_EXPORT_NAME, &new_canonical_name);
128 if (major_status != GSS_S_COMPLETE) {
129 _gss_mg_error(m, major_status, *minor_status);
130 return (major_status);
134 * Now we make a new name and mark it as an MN.
136 name = _gss_make_name(m, new_canonical_name);
138 m->gm_release_name(minor_status, &new_canonical_name);
139 return (GSS_S_FAILURE);
142 *output_name = (gss_name_t) name;
145 return (GSS_S_COMPLETE);
149 gss_import_name(OM_uint32 *minor_status,
150 const gss_buffer_t input_name_buffer,
151 const gss_OID input_name_type,
152 gss_name_t *output_name)
154 gss_OID name_type = input_name_type;
155 OM_uint32 major_status;
156 struct _gss_name *name;
158 *output_name = GSS_C_NO_NAME;
160 if (input_name_buffer->length == 0) {
162 return (GSS_S_BAD_NAME);
166 * Use GSS_NT_USER_NAME as default name type.
168 if (name_type == GSS_C_NO_OID)
169 name_type = GSS_C_NT_USER_NAME;
172 * If this is an exported name, we need to parse it to find
173 * the mechanism and then import it as an MN. See RFC 2743
174 * section 3.2 for a description of the format.
176 if (gss_oid_equal(name_type, GSS_C_NT_EXPORT_NAME)) {
177 return _gss_import_export_name(minor_status,
178 input_name_buffer, output_name);
182 * Only allow certain name types. This is pretty bogus - we
183 * should figure out the list of supported name types using
184 * gss_inquire_names_for_mech.
186 if (!gss_oid_equal(name_type, GSS_C_NT_USER_NAME)
187 && !gss_oid_equal(name_type, GSS_C_NT_MACHINE_UID_NAME)
188 && !gss_oid_equal(name_type, GSS_C_NT_STRING_UID_NAME)
189 && !gss_oid_equal(name_type, GSS_C_NT_HOSTBASED_SERVICE_X)
190 && !gss_oid_equal(name_type, GSS_C_NT_HOSTBASED_SERVICE)
191 && !gss_oid_equal(name_type, GSS_C_NT_ANONYMOUS)
192 && !gss_oid_equal(name_type, GSS_KRB5_NT_PRINCIPAL_NAME)) {
194 return (GSS_S_BAD_NAMETYPE);
198 name = malloc(sizeof(struct _gss_name));
200 *minor_status = ENOMEM;
201 return (GSS_S_FAILURE);
203 memset(name, 0, sizeof(struct _gss_name));
205 major_status = _gss_copy_oid(minor_status,
206 name_type, &name->gn_type);
209 return (GSS_S_FAILURE);
212 major_status = _gss_copy_buffer(minor_status,
213 input_name_buffer, &name->gn_value);
215 gss_name_t rname = (gss_name_t)name;
216 gss_release_name(minor_status, &rname);
217 return (GSS_S_FAILURE);
220 SLIST_INIT(&name->gn_mn);
222 *output_name = (gss_name_t) name;
223 return (GSS_S_COMPLETE);