2 * Copyright (c) 2005 Doug Rabson
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6 * modification, are permitted provided that the following conditions
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10 * 2. Redistributions in binary form must reproduce the above copyright
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12 * documentation and/or other materials provided with the distribution.
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17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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26 * $FreeBSD: src/lib/libgssapi/gss_import_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
29 #include "mech_locl.h"
32 _gss_import_export_name(OM_uint32 *minor_status,
33 const gss_buffer_t input_name_buffer,
34 gss_name_t *output_name)
36 OM_uint32 major_status;
37 unsigned char *p = input_name_buffer->value;
38 size_t len = input_name_buffer->length;
40 gss_OID_desc mech_oid;
41 gssapi_mech_interface m;
42 struct _gss_name *name;
43 gss_name_t new_canonical_name;
50 * Make sure that TOK_ID is {4, 1}.
53 return (GSS_S_BAD_NAME);
55 return (GSS_S_BAD_NAME);
57 case 1: /* non-composite name */
59 case 2: /* composite name */
63 return (GSS_S_BAD_NAME);
69 * Get the mech length and the name length and sanity
70 * check the size of of the buffer.
73 return (GSS_S_BAD_NAME);
74 t = (p[0] << 8) + p[1];
79 * Check the DER encoded OID to make sure it agrees with the
80 * length we just decoded.
82 if (p[0] != 6) /* 6=OID */
83 return (GSS_S_BAD_NAME);
94 mech_oid.length = (mech_oid.length << 8) | p[0];
100 mech_oid.length = p[0];
105 if (mech_oid.length != t)
106 return (GSS_S_BAD_NAME);
108 mech_oid.elements = p;
111 return (GSS_S_BAD_NAME);
115 t = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
119 if (!composite && len != t)
120 return (GSS_S_BAD_NAME);
122 m = __gss_get_mechanism(&mech_oid);
124 return (GSS_S_BAD_MECH);
127 * Ask the mechanism to import the name.
129 major_status = m->gm_import_name(minor_status,
130 input_name_buffer, GSS_C_NT_EXPORT_NAME, &new_canonical_name);
131 if (major_status != GSS_S_COMPLETE) {
132 _gss_mg_error(m, major_status, *minor_status);
137 * Now we make a new name and mark it as an MN.
139 name = _gss_make_name(m, new_canonical_name);
141 m->gm_release_name(minor_status, &new_canonical_name);
142 return (GSS_S_FAILURE);
145 *output_name = (gss_name_t) name;
148 return (GSS_S_COMPLETE);
152 * Import a name internal or mechanism name
154 * Type of name and their format:
156 * - GSS_C_NT_USER_NAME
157 * - GSS_C_NT_HOSTBASED_SERVICE
158 * - GSS_C_NT_EXPORT_NAME
159 * - GSS_C_NT_ANONYMOUS
160 * - GSS_KRB5_NT_PRINCIPAL_NAME
162 * For more information about @ref internalVSmechname.
164 * @param minor_status minor status code
165 * @param input_name_buffer import name buffer
166 * @param input_name_type type of the import name buffer
167 * @param output_name the resulting type, release with
168 * gss_release_name(), independent of input_name
170 * @returns a gss_error code, see gss_display_status() about printing
176 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
177 gss_import_name(OM_uint32 *minor_status,
178 const gss_buffer_t input_name_buffer,
179 const gss_OID input_name_type,
180 gss_name_t *output_name)
182 struct _gss_mechanism_name *mn;
183 gss_OID name_type = input_name_type;
184 OM_uint32 major_status, ms;
185 struct _gss_name *name;
186 struct _gss_mech_switch *m;
189 *output_name = GSS_C_NO_NAME;
191 if (input_name_buffer->length == 0) {
193 return (GSS_S_BAD_NAME);
199 * Use GSS_NT_USER_NAME as default name type.
201 if (name_type == GSS_C_NO_OID)
202 name_type = GSS_C_NT_USER_NAME;
205 * If this is an exported name, we need to parse it to find
206 * the mechanism and then import it as an MN. See RFC 2743
207 * section 3.2 for a description of the format.
209 if (gss_oid_equal(name_type, GSS_C_NT_EXPORT_NAME)) {
210 return _gss_import_export_name(minor_status,
211 input_name_buffer, output_name);
216 name = calloc(1, sizeof(struct _gss_name));
218 *minor_status = ENOMEM;
219 return (GSS_S_FAILURE);
222 HEIM_SLIST_INIT(&name->gn_mn);
224 major_status = _gss_copy_oid(minor_status,
225 name_type, &name->gn_type);
228 return (GSS_S_FAILURE);
231 major_status = _gss_copy_buffer(minor_status,
232 input_name_buffer, &name->gn_value);
237 * Walk over the mechs and import the name into a mech name
238 * for those supported this nametype.
241 HEIM_SLIST_FOREACH(m, &_gss_mechs, gm_link) {
244 major_status = gss_test_oid_set_member(minor_status,
245 name_type, m->gm_name_types, &present);
247 if (major_status || present == 0)
250 mn = malloc(sizeof(struct _gss_mechanism_name));
252 *minor_status = ENOMEM;
253 major_status = GSS_S_FAILURE;
257 major_status = (*m->gm_mech.gm_import_name)(minor_status,
259 (name->gn_type.elements
260 ? &name->gn_type : GSS_C_NO_OID),
262 if (major_status != GSS_S_COMPLETE) {
263 _gss_mg_error(&m->gm_mech, major_status, *minor_status);
268 mn->gmn_mech = &m->gm_mech;
269 mn->gmn_mech_oid = &m->gm_mech_oid;
270 HEIM_SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
274 * If we can't find a mn for the name, bail out already here.
277 mn = HEIM_SLIST_FIRST(&name->gn_mn);
280 major_status = GSS_S_NAME_NOT_MN;
284 *output_name = (gss_name_t) name;
285 return (GSS_S_COMPLETE);
288 rname = (gss_name_t)name;
289 gss_release_name(&ms, &rname);