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>
33 #include "mech_switch.h"
38 _gss_import_export_name(OM_uint32 *minor_status,
39 const gss_buffer_t input_name_buffer,
40 gss_name_t *output_name)
42 OM_uint32 major_status;
43 unsigned char *p = input_name_buffer->value;
44 size_t len = input_name_buffer->length;
46 gss_OID_desc mech_oid;
47 struct _gss_mech_switch *m;
48 struct _gss_name *name;
49 struct _gss_mechanism_name *mn;
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);
130 * Now we make a new name and mark it as an MN.
132 name = _gss_make_name(m, new_canonical_name);
134 m->gm_release_name(minor_status, &new_canonical_name);
135 return (GSS_S_FAILURE);
138 *output_name = (gss_name_t) name;
141 return (GSS_S_COMPLETE);
145 gss_import_name(OM_uint32 *minor_status,
146 const gss_buffer_t input_name_buffer,
147 const gss_OID input_name_type,
148 gss_name_t *output_name)
150 gss_OID name_type = input_name_type;
151 OM_uint32 major_status;
152 struct _gss_name *name;
154 if (input_name_buffer->length == 0) {
157 return (GSS_S_BAD_NAME);
161 * Use GSS_NT_USER_NAME as default name type.
163 if (name_type == GSS_C_NO_OID)
164 name_type = GSS_C_NT_USER_NAME;
167 * If this is an exported name, we need to parse it to find
168 * the mechanism and then import it as an MN. See RFC 2743
169 * section 3.2 for a description of the format.
171 if (_gss_oid_equal(name_type, GSS_C_NT_EXPORT_NAME)) {
172 return _gss_import_export_name(minor_status,
173 input_name_buffer, output_name);
177 * Only allow certain name types. This is pretty bogus - we
178 * should figure out the list of supported name types using
179 * gss_inquire_names_for_mech.
181 if (!_gss_oid_equal(name_type, GSS_C_NT_USER_NAME)
182 && !_gss_oid_equal(name_type, GSS_C_NT_MACHINE_UID_NAME)
183 && !_gss_oid_equal(name_type, GSS_C_NT_STRING_UID_NAME)
184 && !_gss_oid_equal(name_type, GSS_C_NT_HOSTBASED_SERVICE_X)
185 && !_gss_oid_equal(name_type, GSS_C_NT_HOSTBASED_SERVICE)
186 && !_gss_oid_equal(name_type, GSS_C_NT_ANONYMOUS)
187 && !_gss_oid_equal(name_type, GSS_KRB5_NT_PRINCIPAL_NAME)) {
190 return (GSS_S_BAD_NAMETYPE);
194 name = malloc(sizeof(struct _gss_name));
196 *minor_status = ENOMEM;
197 return (GSS_S_FAILURE);
199 memset(name, 0, sizeof(struct _gss_name));
201 major_status = _gss_copy_oid(minor_status,
202 name_type, &name->gn_type);
205 return (GSS_S_FAILURE);
208 major_status = _gss_copy_buffer(minor_status,
209 input_name_buffer, &name->gn_value);
211 gss_release_name(minor_status, (gss_name_t*) &name);
212 return (GSS_S_FAILURE);
215 SLIST_INIT(&name->gn_mn);
217 *output_name = (gss_name_t) name;
218 return (GSS_S_COMPLETE);