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/*
* EAP peer method: Test method for vendor specific (expanded) EAP type
* Copyright (c) 2005-2006, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*
* This file implements a vendor specific test method using EAP expanded types.
* This is only for test use and must not be used for authentication since no
* security is provided.
*/
#include "includes.h"
#include "common.h"
#include "eap_i.h"
#include "eloop.h"
#define EAP_VENDOR_ID 0xfffefd
#define EAP_VENDOR_TYPE 0xfcfbfaf9
/* #define TEST_PENDING_REQUEST */
struct eap_vendor_test_data {
enum { INIT, CONFIRM, SUCCESS } state;
int first_try;
};
static void * eap_vendor_test_init(struct eap_sm *sm)
{
struct eap_vendor_test_data *data;
data = os_zalloc(sizeof(*data));
if (data == NULL)
return NULL;
data->state = INIT;
data->first_try = 1;
return data;
}
static void eap_vendor_test_deinit(struct eap_sm *sm, void *priv)
{
struct eap_vendor_test_data *data = priv;
os_free(data);
}
#ifdef TEST_PENDING_REQUEST
static void eap_vendor_ready(void *eloop_ctx, void *timeout_ctx)
{
struct eap_sm *sm = eloop_ctx;
wpa_printf(MSG_DEBUG, "EAP-VENDOR-TEST: Ready to re-process pending "
"request");
eap_notify_pending(sm);
}
#endif /* TEST_PENDING_REQUEST */
static u8 * eap_vendor_test_process(struct eap_sm *sm, void *priv,
struct eap_method_ret *ret,
const u8 *reqData, size_t reqDataLen,
size_t *respDataLen)
{
struct eap_vendor_test_data *data = priv;
const struct eap_hdr *req;
struct eap_hdr *resp;
const u8 *pos;
u8 *rpos;
size_t len;
pos = eap_hdr_validate(EAP_VENDOR_ID, EAP_VENDOR_TYPE,
reqData, reqDataLen, &len);
if (pos == NULL || len < 1) {
ret->ignore = TRUE;
return NULL;
}
if (data->state == INIT && *pos != 1) {
wpa_printf(MSG_DEBUG, "EAP-VENDOR-TEST: Unexpected message "
"%d in INIT state", *pos);
ret->ignore = TRUE;
return NULL;
}
if (data->state == CONFIRM && *pos != 3) {
wpa_printf(MSG_DEBUG, "EAP-VENDOR-TEST: Unexpected message "
"%d in CONFIRM state", *pos);
ret->ignore = TRUE;
return NULL;
}
if (data->state == SUCCESS) {
wpa_printf(MSG_DEBUG, "EAP-VENDOR-TEST: Unexpected message "
"in SUCCESS state");
ret->ignore = TRUE;
return NULL;
}
if (data->state == CONFIRM) {
#ifdef TEST_PENDING_REQUEST
if (data->first_try) {
data->first_try = 0;
wpa_printf(MSG_DEBUG, "EAP-VENDOR-TEST: Testing "
"pending request");
ret->ignore = TRUE;
eloop_register_timeout(1, 0, eap_vendor_ready, sm,
NULL);
return NULL;
}
#endif /* TEST_PENDING_REQUEST */
}
ret->ignore = FALSE;
req = (const struct eap_hdr *) reqData;
wpa_printf(MSG_DEBUG, "EAP-VENDOR-TEST: Generating Response");
ret->allowNotifications = TRUE;
resp = eap_msg_alloc(EAP_VENDOR_ID, EAP_VENDOR_TYPE, respDataLen, 1,
EAP_CODE_RESPONSE, req->identifier, &rpos);
if (resp == NULL)
return NULL;
if (data->state == INIT) {
*rpos = 2;
data->state = CONFIRM;
ret->methodState = METHOD_CONT;
ret->decision = DECISION_FAIL;
} else {
*rpos = 4;
data->state = SUCCESS;
ret->methodState = METHOD_DONE;
ret->decision = DECISION_UNCOND_SUCC;
}
return (u8 *) resp;
}
static Boolean eap_vendor_test_isKeyAvailable(struct eap_sm *sm, void *priv)
{
struct eap_vendor_test_data *data = priv;
return data->state == SUCCESS;
}
static u8 * eap_vendor_test_getKey(struct eap_sm *sm, void *priv, size_t *len)
{
struct eap_vendor_test_data *data = priv;
u8 *key;
const int key_len = 64;
if (data->state != SUCCESS)
return NULL;
key = os_malloc(key_len);
if (key == NULL)
return NULL;
os_memset(key, 0x11, key_len / 2);
os_memset(key + key_len / 2, 0x22, key_len / 2);
*len = key_len;
return key;
}
int eap_peer_vendor_test_register(void)
{
struct eap_method *eap;
int ret;
eap = eap_peer_method_alloc(EAP_PEER_METHOD_INTERFACE_VERSION,
EAP_VENDOR_ID, EAP_VENDOR_TYPE,
"VENDOR-TEST");
if (eap == NULL)
return -1;
eap->init = eap_vendor_test_init;
eap->deinit = eap_vendor_test_deinit;
eap->process = eap_vendor_test_process;
eap->isKeyAvailable = eap_vendor_test_isKeyAvailable;
eap->getKey = eap_vendor_test_getKey;
ret = eap_peer_method_register(eap);
if (ret)
eap_peer_method_free(eap);
return ret;
}
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