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/utils/wpa_debug.c

@@ -0,0 +1,114 @@
+/*
+ * wpa_supplicant/hostapd / Debug prints
+ * Copyright (c) 2002-2007, 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.
+ */
+#ifdef ESP_SUPPLICANT
+#include "utils/includes.h"
+#include "utils/common.h"
+#include "utils/wpa_debug.h"
+
+static inline int  _wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len, int uppercase)
+{
+    size_t i;
+    char *pos = buf, *end = buf + buf_size;
+    int ret;
+
+    if (buf_size == 0)
+        return 0;
+
+    for (i = 0; i < len; i++) {
+        ret = snprintf(pos, end - pos, uppercase? "%02X":"%02x", data[i]);
+        if (ret < 0 || ret >= end - pos) {
+            end[-1] = '\0';
+            return pos - buf;
+        }
+        pos += ret;
+    }
+    end[-1]='\0';
+    return pos - buf;
+}
+
+int  wpa_snprintf_hex_uppercase(char *buf, size_t buf_size, const u8 *data, size_t len)
+{
+	return _wpa_snprintf_hex(buf, buf_size, data, len, 1);
+}
+
+int  wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len)
+{
+	return _wpa_snprintf_hex(buf, buf_size, data, len, 0);
+}
+
+#ifdef DEBUG_PRINT
+void  wpa_dump_mem(char* desc, uint8_t *addr, uint16_t len)
+{
+    wpa_printf(MSG_DEBUG, "%s\n", desc);
+    if (addr){
+        uint16_t i=0;
+        for (i=0; i<len; i++){
+            if (i%16==0) wpa_printf(MSG_DEBUG, "\n");
+            wpa_printf(MSG_DEBUG, "%02x ", addr[i]);
+        }
+        wpa_printf(MSG_DEBUG, "\n");
+    }
+}
+
+void  wpa_debug_print_timestamp(void)
+{
+#ifdef DEBUG_PRINT
+    struct os_time tv;
+    os_get_time(&tv);
+    wpa_printf(MSG_DEBUG, "%ld.%06u: ", (long) tv.sec, (unsigned int) tv.usec);
+#endif	
+}
+
+void  wpa_hexdump(int level, const char *title, const u8 *buf, size_t len)
+{
+#ifdef DEBUG_PRINT 
+	size_t i;
+
+	if (level < MSG_MSGDUMP)
+		return;
+
+	wpa_printf(MSG_DEBUG, "%s - hexdump(len=%lu):\n", title, (unsigned long) len);
+	if (buf == NULL) {
+		wpa_printf(MSG_DEBUG, " [NULL]\n");
+	} else {
+		for (i = 0; i < len; i++) {
+			wpa_printf(MSG_DEBUG, " %02x", buf[i]);
+            if((i+1) % 16 == 0)
+                wpa_printf(MSG_DEBUG, "\n");
+        }
+	} 
+	wpa_printf(MSG_DEBUG, "\n");
+#endif	
+}
+
+void  wpa_hexdump_key(int level, const char *title, const u8 *buf, size_t len)
+{
+     wpa_hexdump(level, title, buf, len);
+}
+#endif
+
+int  eloop_cancel_timeout(eloop_timeout_handler handler,
+			 void *eloop_data, void *user_data)
+{
+    return 0;	
+}
+
+int  eloop_register_timeout(unsigned int secs, unsigned int usecs,
+			   eloop_timeout_handler handler,
+			   void *eloop_data, void *user_data)
+{
+    return 0;
+}
+#endif // ESP_SUPPLICANT
+