supplicant/esp_wifi: move supplicant to idf

Move supplicant to idf and do following refactoring:
1. Make the folder structure consitent with supplicant upstream
2. Remove duplicated header files and minimize the public header files
3. Refactor for WiFi/supplicant interfaces

components/wpa_supplicant/src/eap_peer/eap_i.h

@@ -0,0 +1,152 @@
+/*
+ * EAP peer state machines internal structures (RFC 4137)
+ * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef EAP_I_H
+#define EAP_I_H
+
+#include "utils/wpabuf.h"
+#include "eap.h"
+#include "eap_common.h"
+#include "eap_config.h"
+#include "esp_wpa2.h"
+
+/* RFC 4137 - EAP Peer state machine */
+
+typedef enum {
+	DECISION_FAIL, DECISION_COND_SUCC, DECISION_UNCOND_SUCC
+} EapDecision;
+
+typedef enum {
+	METHOD_NONE, METHOD_INIT, METHOD_CONT, METHOD_MAY_CONT, METHOD_DONE
+} EapMethodState;
+
+/**
+ * struct eap_method_ret - EAP return values from struct eap_method::process()
+ *
+ * These structure contains OUT variables for the interface between peer state
+ * machine and methods (RFC 4137, Sect. 4.2). eapRespData will be returned as
+ * the return value of struct eap_method::process() so it is not included in
+ * this structure.
+ */
+struct eap_method_ret {
+	/**
+	 * ignore - Whether method decided to drop the current packed (OUT)
+	 */
+	Boolean ignore;
+
+	/**
+	 * methodState - Method-specific state (IN/OUT)
+	 */
+	EapMethodState methodState;
+
+	/**
+	 * decision - Authentication decision (OUT)
+	 */
+	EapDecision decision;
+
+	/**
+	 * allowNotifications - Whether method allows notifications (OUT)
+	 */
+	Boolean allowNotifications;
+};
+
+struct eap_sm;
+
+struct eap_method {
+	/**
+	 * vendor -EAP Vendor-ID
+	 */
+	int vendor;
+
+	/**
+	 * method - EAP type number
+	 */
+	EapType method;	
+
+	/**
+	 * name - Name of the method (e.g., "TLS")
+	 */
+	const char *name;
+
+	struct eap_method *next;
+
+	void * (*init)(struct eap_sm *sm);
+	void (*deinit)(struct eap_sm *sm, void *priv);
+	struct wpabuf * (*process)(struct eap_sm *sm, void *priv,
+				   struct eap_method_ret *ret,
+				   const struct wpabuf *reqData);
+	bool (*isKeyAvailable)(struct eap_sm *sm, void *priv);
+	u8 * (*getKey)(struct eap_sm *sm, void *priv, size_t *len);
+	int (*get_status)(struct eap_sm *sm, void *priv, char *buf,
+			  size_t buflen, int verbose);
+	const u8 * (*get_identity)(struct eap_sm *sm, void *priv, size_t *len);
+	void (*free)(struct eap_method *method);
+	bool (*has_reauth_data)(struct eap_sm *sm, void *priv);
+	void (*deinit_for_reauth)(struct eap_sm *sm, void *priv);
+	void * (*init_for_reauth)(struct eap_sm *sm, void *priv);
+	u8 * (*getSessionId)(struct eap_sm *sm, void *priv, size_t *len);
+};
+
+#define CLIENT_CERT_NAME	"CLC"
+#define CA_CERT_NAME		"CAC"
+#define PRIVATE_KEY_NAME	"PVK"
+#define BLOB_NAME_LEN		3
+#define BLOB_NUM		3
+
+enum SIG_WPA2 {
+    SIG_WPA2_START = 0,
+    SIG_WPA2_RX,
+    SIG_WPA2_TASK_DEL,
+    SIG_WPA2_MAX,
+};
+
+/**
+ * struct eap_sm - EAP state machine data
+ */
+struct eap_sm {
+	void *eap_method_priv;
+
+	void *ssl_ctx;
+
+	unsigned int workaround;
+/////////////////////////////////////////////////
+        struct pbuf *outbuf;
+	struct wpa_config_blob blob[BLOB_NUM];
+	struct eap_peer_config config;
+	u8 current_identifier;
+	u8 ownaddr[ETH_ALEN];
+#ifdef USE_WPA2_TASK
+    	u8 wpa2_sig_cnt[SIG_WPA2_MAX];
+#endif
+	u8 finish_state;
+
+	int init_phase2;
+	bool peap_done;
+
+	u8 *eapKeyData;
+	size_t eapKeyDataLen;
+	struct wpabuf *lastRespData;
+	const struct eap_method *m;
+};
+
+typedef enum {
+    WPA2_STATE_ENABLED = 0,
+    WPA2_STATE_DISABLED,
+} wpa2_state_t;
+
+const u8 * eap_get_config_identity(struct eap_sm *sm, size_t *len);
+const u8 * eap_get_config_password(struct eap_sm *sm, size_t *len);
+const u8 * eap_get_config_password2(struct eap_sm *sm, size_t *len, int *hash);
+const u8 * eap_get_config_new_password(struct eap_sm *sm, size_t *len);
+struct eap_peer_config * eap_get_config(struct eap_sm *sm);
+const struct wpa_config_blob * eap_get_config_blob(struct eap_sm *sm, const char *name);
+bool wifi_sta_get_enterprise_disable_time_check(void);
+
+struct wpabuf * eap_sm_build_identity_resp(struct eap_sm *sm, u8 id, int encrypted);
+
+#endif /* EAP_I_H */