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 struct _gss_mechanism_name *mn;
51 gss_name_t new_canonical_name;
57 * Make sure that TOK_ID is {4, 1}.
60 return (GSS_S_BAD_NAME);
61 if (p[0] != 4 || p[1] != 1)
62 return (GSS_S_BAD_NAME);
67 * Get the mech length and the name length and sanity
68 * check the size of of the buffer.
71 return (GSS_S_BAD_NAME);
72 t = (p[0] << 8) + p[1];
77 * Check the DER encoded OID to make sure it agrees with the
78 * length we just decoded.
80 if (p[0] != 6) /* 6=OID */
81 return (GSS_S_BAD_NAME);
92 mech_oid.length = (mech_oid.length << 8) | p[0];
98 mech_oid.length = p[0];
103 if (mech_oid.length != t)
104 return (GSS_S_BAD_NAME);
106 mech_oid.elements = p;
109 return (GSS_S_BAD_NAME);
113 t = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
118 return (GSS_S_BAD_NAME);
120 m = _gss_find_mech_switch(&mech_oid);
122 return (GSS_S_BAD_MECH);
125 * Ask the mechanism to import the name.
127 major_status = m->gm_import_name(minor_status,
128 input_name_buffer, GSS_C_NT_EXPORT_NAME, &new_canonical_name);
131 * Now we make a new name and mark it as an MN.
133 name = _gss_make_name(m, new_canonical_name);
135 m->gm_release_name(minor_status, &new_canonical_name);
136 return (GSS_S_FAILURE);
139 *output_name = (gss_name_t) name;
142 return (GSS_S_COMPLETE);
146 gss_import_name(OM_uint32 *minor_status,
147 const gss_buffer_t input_name_buffer,
148 const gss_OID input_name_type,
149 gss_name_t *output_name)
151 gss_OID name_type = input_name_type;
152 OM_uint32 major_status;
153 struct _gss_name *name;
155 if (input_name_buffer->length == 0) {
158 return (GSS_S_BAD_NAME);
162 * Use GSS_NT_USER_NAME as default name type.
164 if (name_type == GSS_C_NO_OID)
165 name_type = GSS_C_NT_USER_NAME;
168 * If this is an exported name, we need to parse it to find
169 * the mechanism and then import it as an MN. See RFC 2743
170 * section 3.2 for a description of the format.
172 if (_gss_oid_equal(name_type, GSS_C_NT_EXPORT_NAME)) {
173 return _gss_import_export_name(minor_status,
174 input_name_buffer, output_name);
178 * Only allow certain name types. This is pretty bogus - we
179 * should figure out the list of supported name types using
180 * gss_inquire_names_for_mech.
182 if (!_gss_oid_equal(name_type, GSS_C_NT_USER_NAME)
183 && !_gss_oid_equal(name_type, GSS_C_NT_MACHINE_UID_NAME)
184 && !_gss_oid_equal(name_type, GSS_C_NT_STRING_UID_NAME)
185 && !_gss_oid_equal(name_type, GSS_C_NT_HOSTBASED_SERVICE_X)
186 && !_gss_oid_equal(name_type, GSS_C_NT_HOSTBASED_SERVICE)
187 && !_gss_oid_equal(name_type, GSS_C_NT_ANONYMOUS)
188 && !_gss_oid_equal(name_type, GSS_KRB5_NT_PRINCIPAL_NAME)) {
191 return (GSS_S_BAD_NAMETYPE);
195 name = malloc(sizeof(struct _gss_name));
197 *minor_status = ENOMEM;
198 return (GSS_S_FAILURE);
200 memset(name, 0, sizeof(struct _gss_name));
202 major_status = _gss_copy_oid(minor_status,
203 name_type, &name->gn_type);
206 return (GSS_S_FAILURE);
209 major_status = _gss_copy_buffer(minor_status,
210 input_name_buffer, &name->gn_value);
212 gss_release_name(minor_status, (gss_name_t*) &name);
213 return (GSS_S_FAILURE);
216 SLIST_INIT(&name->gn_mn);
218 *output_name = (gss_name_t) name;
219 return (GSS_S_COMPLETE);