2 * Copyright (c) 2010, JANET(UK)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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.
16 * 3. Neither the name of JANET(UK) 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.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND 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 THE COPYRIGHT HOLDER 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
33 #include "gssapiP_eap.h"
36 policyVariableToFlag(enum eapol_bool_var variable)
41 case EAPOL_eapSuccess:
42 flag = CTX_FLAG_EAP_SUCCESS;
44 case EAPOL_eapRestart:
45 flag = CTX_FLAG_EAP_RESTART;
48 flag = CTX_FLAG_EAP_FAIL;
51 flag = CTX_FLAG_EAP_RESP;
54 flag = CTX_FLAG_EAP_NO_RESP;
57 flag = CTX_FLAG_EAP_REQ;
59 case EAPOL_portEnabled:
60 flag = CTX_FLAG_EAP_PORT_ENABLED;
63 flag = CTX_FLAG_EAP_ALT_ACCEPT;
66 flag = CTX_FLAG_EAP_ALT_REJECT;
74 peerGetBool(void *data, enum eapol_bool_var variable)
76 gss_ctx_id_t ctx = data;
79 if (ctx == GSS_C_NO_CONTEXT)
82 flag = policyVariableToFlag(variable);
84 return ((ctx->flags & flag) != 0);
88 peerSetBool(void *data, enum eapol_bool_var variable,
91 gss_ctx_id_t ctx = data;
94 if (ctx == GSS_C_NO_CONTEXT)
97 flag = policyVariableToFlag(variable);
102 ctx->flags &= ~(flag);
106 peerGetInt(void *data, enum eapol_int_var variable)
108 gss_ctx_id_t ctx = data;
110 if (ctx == GSS_C_NO_CONTEXT)
113 assert(CTX_IS_INITIATOR(ctx));
116 case EAPOL_idleWhile:
117 return ctx->initiatorCtx.idleWhile;
125 peerSetInt(void *data, enum eapol_int_var variable,
128 gss_ctx_id_t ctx = data;
130 if (ctx == GSS_C_NO_CONTEXT)
133 assert(CTX_IS_INITIATOR(ctx));
136 case EAPOL_idleWhile:
137 ctx->initiatorCtx.idleWhile = value;
143 eapGssSmAuthenticate(OM_uint32 *minor,
146 gss_name_t target_name,
150 gss_channel_bindings_t input_chan_bindings,
151 gss_buffer_t input_token,
152 gss_buffer_t output_token)
154 OM_uint32 major, tmpMinor;
157 if (input_token == GSS_C_NO_BUFFER || input_token->length == 0) {
159 req_flags &= GSS_C_TRANS_FLAG | GSS_C_REPLAY_FLAG | GSS_C_DCE_STYLE;
160 ctx->gssFlags |= req_flags;
164 if (time_req == 0 || time_req == GSS_C_INDEFINITE)
167 ctx->expiryTime = now + time_req;
169 major = gss_duplicate_name(minor, cred->name, &ctx->initiatorName);
170 if (GSS_ERROR(major))
173 major = gss_duplicate_name(minor, target_name, &ctx->acceptorName);
174 if (GSS_ERROR(major))
177 if (mech_type == GSS_C_NULL_OID ||
178 oidEqual(mech_type, GSS_EAP_MECHANISM)) {
179 major = gssEapDefaultMech(minor, &ctx->mechanismUsed);
180 } else if (gssEapIsMechanismOid(mech_type)) {
181 if (!gssEapInternalizeOid(mech_type, &ctx->mechanismUsed))
182 major = duplicateOid(minor, mech_type, &ctx->mechanismUsed);
184 major = GSS_S_BAD_MECH;
186 if (GSS_ERROR(major))
194 static eap_gss_initiator_sm eapGssSm[] = {
195 eapGssSmAuthenticate,
203 gss_init_sec_context(OM_uint32 *minor,
206 gss_name_t target_name,
210 gss_channel_bindings_t input_chan_bindings,
211 gss_buffer_t input_token,
212 gss_OID *actual_mech_type,
213 gss_buffer_t output_token,
214 OM_uint32 *ret_flags,
217 OM_uint32 major, tmpMinor;
218 gss_ctx_id_t ctx = *pCtx;
222 output_token->length = 0;
223 output_token->value = NULL;
225 if (cred != GSS_C_NO_CREDENTIAL && !(cred->flags & CRED_FLAG_INITIATE)) {
226 major = GSS_S_NO_CRED;
230 if (ctx == GSS_C_NO_CONTEXT) {
231 if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
232 major = GSS_S_DEFECTIVE_TOKEN;
236 major = gssEapAllocContext(minor, &ctx);
237 if (GSS_ERROR(major))
243 for (; ctx->state != EAP_STATE_ESTABLISHED; ctx->state++) {
244 major = (eapGssSm[ctx->state])(minor,
254 if (GSS_ERROR(major))
256 if (output_token->length != 0) {
257 assert(major == GSS_S_CONTINUE_NEEDED);
262 if (actual_mech_type != NULL) {
263 if (!gssEapInternalizeOid(ctx->mechanismUsed, actual_mech_type))
264 duplicateOid(&tmpMinor, ctx->mechanismUsed, actual_mech_type);
266 if (ret_flags != NULL)
267 *ret_flags = ctx->gssFlags;
268 if (time_rec != NULL)
269 gss_context_time(&tmpMinor, ctx, time_rec);
271 assert(ctx->state == EAP_STATE_ESTABLISHED || output_token->length != 0);
274 if (GSS_ERROR(major))
275 gssEapReleaseContext(&tmpMinor, pCtx);