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src/eap_server/eap_server_vendor_test.c

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+/*
+ * hostapd / Test method for vendor specific (expanded) EAP type
+ * Copyright (c) 2005-2007, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "eap_i.h"
+
+
+#define EAP_VENDOR_ID EAP_VENDOR_HOSTAP
+#define EAP_VENDOR_TYPE 0xfcfbfaf9
+
+
+struct eap_vendor_test_data {
+	enum { INIT, CONFIRM, SUCCESS, FAILURE } state;
+};
+
+
+static const char * eap_vendor_test_state_txt(int state)
+{
+	switch (state) {
+	case INIT:
+		return "INIT";
+	case CONFIRM:
+		return "CONFIRM";
+	case SUCCESS:
+		return "SUCCESS";
+	case FAILURE:
+		return "FAILURE";
+	default:
+		return "?";
+	}
+}
+
+
+static void eap_vendor_test_state(struct eap_vendor_test_data *data,
+				  int state)
+{
+	wpa_printf(MSG_DEBUG, "EAP-VENDOR-TEST: %s -> %s",
+		   eap_vendor_test_state_txt(data->state),
+		   eap_vendor_test_state_txt(state));
+	data->state = state;
+}
+
+
+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;
+
+	return data;
+}
+
+
+static void eap_vendor_test_reset(struct eap_sm *sm, void *priv)
+{
+	struct eap_vendor_test_data *data = priv;
+	os_free(data);
+}
+
+
+static struct wpabuf * eap_vendor_test_buildReq(struct eap_sm *sm, void *priv,
+						u8 id)
+{
+	struct eap_vendor_test_data *data = priv;
+	struct wpabuf *req;
+
+	req = eap_msg_alloc(EAP_VENDOR_ID, EAP_VENDOR_TYPE, 1,
+			    EAP_CODE_REQUEST, id);
+	if (req == NULL) {
+		wpa_printf(MSG_ERROR, "EAP-VENDOR-TEST: Failed to allocate "
+			   "memory for request");
+		return NULL;
+	}
+
+	wpabuf_put_u8(req, data->state == INIT ? 1 : 3);
+
+	return req;
+}
+
+
+static bool eap_vendor_test_check(struct eap_sm *sm, void *priv,
+				  struct wpabuf *respData)
+{
+	const u8 *pos;
+	size_t len;
+
+	pos = eap_hdr_validate(EAP_VENDOR_ID, EAP_VENDOR_TYPE, respData, &len);
+	if (pos == NULL || len < 1) {
+		wpa_printf(MSG_INFO, "EAP-VENDOR-TEST: Invalid frame");
+		return true;
+	}
+
+	return false;
+}
+
+
+static void eap_vendor_test_process(struct eap_sm *sm, void *priv,
+				    struct wpabuf *respData)
+{
+	struct eap_vendor_test_data *data = priv;
+	const u8 *pos;
+	size_t len;
+
+	pos = eap_hdr_validate(EAP_VENDOR_ID, EAP_VENDOR_TYPE, respData, &len);
+	if (pos == NULL || len < 1)
+		return;
+
+	if (data->state == INIT) {
+		if (*pos == 2)
+			eap_vendor_test_state(data, CONFIRM);
+		else
+			eap_vendor_test_state(data, FAILURE);
+	} else if (data->state == CONFIRM) {
+		if (*pos == 4)
+			eap_vendor_test_state(data, SUCCESS);
+		else
+			eap_vendor_test_state(data, FAILURE);
+	} else
+		eap_vendor_test_state(data, FAILURE);
+}
+
+
+static bool eap_vendor_test_isDone(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;
+}
+
+
+static bool eap_vendor_test_isSuccess(struct eap_sm *sm, void *priv)
+{
+	struct eap_vendor_test_data *data = priv;
+	return data->state == SUCCESS;
+}
+
+
+int eap_server_vendor_test_register(void)
+{
+	struct eap_method *eap;
+
+	eap = eap_server_method_alloc(EAP_SERVER_METHOD_INTERFACE_VERSION,
+				      EAP_VENDOR_ID, EAP_VENDOR_TYPE,
+				      "VENDOR-TEST");
+	if (eap == NULL)
+		return -1;
+
+	eap->init = eap_vendor_test_init;
+	eap->reset = eap_vendor_test_reset;
+	eap->buildReq = eap_vendor_test_buildReq;
+	eap->check = eap_vendor_test_check;
+	eap->process = eap_vendor_test_process;
+	eap->isDone = eap_vendor_test_isDone;
+	eap->getKey = eap_vendor_test_getKey;
+	eap->isSuccess = eap_vendor_test_isSuccess;
+
+	return eap_server_method_register(eap);
+}