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sandeepmistrysandeepmistry
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Merge pull request #68 from PKGeorgiev/master
Added Ping functionality with ability to resolve names to IPs using m2m_ping_req() and hostByName().
2 parents 95a8a26 + ec51ae9 commit 6676cfd

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‎examples/WiFiPing/WiFiPing.ino

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Original file line numberDiff line numberDiff line change
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/*
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This example connects to a encrypted Wifi network (WPA/WPA2).
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Then it prints the MAC address of the Wifi shield,
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the IP address obtained, and other network details.
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Then it continuously pings given host specified by IP Address or name.
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Circuit:
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* WiFi shield attached / MKR1000
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created 13 July 2010
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by dlf (Metodo2 srl)
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modified 09 June 2016
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by Petar Georgiev
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*/
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#include <SPI.h>
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#include <WiFi101.h>
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char ssid[] = "yourNetwork"; // your network SSID (name)
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char pass[] = "secretPassword"; // your network password
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int status = WL_IDLE_STATUS; // the Wifi radio's status
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// Specify IP address or hostname
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String hostName = "www.google.com";
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byte pingResult;
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void setup() {
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// Initialize serial and wait for port to open:
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Serial.begin(9600);
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while (!Serial) {
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; // wait for serial port to connect. Needed for native USB port only
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}
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// check for the presence of the shield:
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if (WiFi.status() == WL_NO_SHIELD) {
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Serial.println("WiFi shield not present");
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// don't continue:
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while (true);
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}
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// attempt to connect to Wifi network:
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while ( status != WL_CONNECTED) {
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Serial.print("Attempting to connect to WPA SSID: ");
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Serial.println(ssid);
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// Connect to WPA/WPA2 network:
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status = WiFi.begin(ssid, pass);
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// wait 5 seconds for connection:
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delay(5000);
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}
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// you're connected now, so print out the data:
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Serial.print("You're connected to the network");
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printCurrentNet();
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printWifiData();
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}
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void loop() {
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Serial.print("Pinging ");
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Serial.print(hostName);
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Serial.print(": ");
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pingResult = WiFi.ping(hostName);
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if (pingResult == WL_PING_SUCCESS) {
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Serial.println("SUCCESS!");
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} else {
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Serial.print("FAILED! Error code: ");
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Serial.println(pingResult);
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};
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delay(3000);
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}
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void printWifiData() {
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// print your WiFi shield's IP address:
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IPAddress ip = WiFi.localIP();
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Serial.print("IP Address: ");
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Serial.println(ip);
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Serial.println(ip);
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// print your MAC address:
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byte mac[6];
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WiFi.macAddress(mac);
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Serial.print("MAC address: ");
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Serial.print(mac[5], HEX);
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Serial.print(":");
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Serial.print(mac[4], HEX);
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Serial.print(":");
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Serial.print(mac[3], HEX);
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Serial.print(":");
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Serial.print(mac[2], HEX);
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Serial.print(":");
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Serial.print(mac[1], HEX);
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Serial.print(":");
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Serial.println(mac[0], HEX);
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Serial.println();
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}
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void printCurrentNet() {
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// print the SSID of the network you're attached to:
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Serial.print("SSID: ");
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Serial.println(WiFi.SSID());
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// print the MAC address of the router you're attached to:
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byte bssid[6];
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WiFi.BSSID(bssid);
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Serial.print("BSSID: ");
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Serial.print(bssid[5], HEX);
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Serial.print(":");
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Serial.print(bssid[4], HEX);
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Serial.print(":");
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Serial.print(bssid[3], HEX);
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Serial.print(":");
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Serial.print(bssid[2], HEX);
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Serial.print(":");
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Serial.print(bssid[1], HEX);
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Serial.print(":");
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Serial.println(bssid[0], HEX);
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// print the received signal strength:
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long rssi = WiFi.RSSI();
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Serial.print("signal strength (RSSI):");
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Serial.println(rssi);
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// print the encryption type:
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byte encryption = WiFi.encryptionType();
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Serial.print("Encryption Type:");
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Serial.println(encryption, HEX);
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Serial.println();
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}

‎src/WiFi.cpp

Lines changed: 67 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -22,8 +22,9 @@
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extern "C" {
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#include "bsp/include/nm_bsp.h"
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#include "socket/include/socket_buffer.h"
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#include "socket/include/m2m_socket_host_if.h"
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#include "driver/source/nmasic.h"
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#include "driver/include/m2m_periph.h"
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#include "driver/include/m2m_periph.h"
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}
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static void wifi_cb(uint8_t u8MsgType, void *pvMsg)
@@ -147,6 +148,26 @@ static void resolve_cb(uint8_t * /* hostName */, uint32_t hostIp)
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WiFi._resolve = hostIp;
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}
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static void ping_cb(uint32 u32IPAddr, uint32 u32RTT, uint8 u8ErrorCode) {
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if (PING_ERR_SUCCESS == u8ErrorCode){
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// Ensure this ICMP reply comes from requested IP address
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if (WiFi._resolve == u32IPAddr)
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WiFi._resolve = WL_PING_SUCCESS;
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else
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// Another network device replied to the our ICMP request
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WiFi._resolve = WL_PING_DEST_UNREACHABLE;
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}
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else if (PING_ERR_DEST_UNREACH == u8ErrorCode) {
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WiFi._resolve = WL_PING_DEST_UNREACHABLE;
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}
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else if (PING_ERR_TIMEOUT == u8ErrorCode) {
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WiFi._resolve = WL_PING_TIMEOUT;
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}
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else {
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WiFi._resolve = WL_PING_ERROR;
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};
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};
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WiFiClass::WiFiClass()
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{
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_mode = WL_RESET_MODE;
@@ -740,4 +761,49 @@ void WiFiClass::refresh(void)
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m2m_wifi_handle_events(NULL);
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}
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uint8_t WiFiClass::ping(const char* hostname, uint8_t ttl){
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IPAddress ip;
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if (hostByName(hostname, ip) > 0)
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return ping(ip, ttl);
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else
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return WL_PING_UNKNOWN_HOST;
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};
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uint8_t WiFiClass::ping(const String &hostname, uint8_t ttl){
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return ping(hostname.c_str(), ttl);
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};
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uint8_t WiFiClass::ping(IPAddress host, uint8_t ttl) {
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// Network led ON (rev A then rev B).
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m2m_periph_gpio_set_val(M2M_PERIPH_GPIO16, 0);
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m2m_periph_gpio_set_val(M2M_PERIPH_GPIO5, 0);
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uint32_t dstHost = (uint32_t)host;
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_resolve = dstHost;
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if (m2m_ping_req((uint32_t)host, ttl, &ping_cb) < 0) {
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// Network led OFF (rev A then rev B).
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m2m_periph_gpio_set_val(M2M_PERIPH_GPIO16, 1);
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m2m_periph_gpio_set_val(M2M_PERIPH_GPIO5, 1);
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// Error sending ping request
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return WL_PING_ERROR;
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};
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// Wait for connection or timeout:
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unsigned long start = millis();
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while (_resolve == dstHost && millis() - start < 5000) {
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m2m_wifi_handle_events(NULL);
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};
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// Network led OFF (rev A then rev B).
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m2m_periph_gpio_set_val(M2M_PERIPH_GPIO16, 1);
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m2m_periph_gpio_set_val(M2M_PERIPH_GPIO5, 1);
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if (_resolve == dstHost)
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return WL_PING_TIMEOUT;
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else
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return (wl_ping_result_t)_resolve;
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};
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WiFiClass WiFi;

‎src/WiFi101.h

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -61,6 +61,14 @@ typedef enum {
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WL_AP_MODE
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} wl_mode_t;
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typedef enum {
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WL_PING_SUCCESS = 0,
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WL_PING_DEST_UNREACHABLE,
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WL_PING_TIMEOUT,
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WL_PING_UNKNOWN_HOST,
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WL_PING_ERROR
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} wl_ping_result_t;
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class WiFiClass
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{
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public:
@@ -139,6 +147,10 @@ class WiFiClass
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int hostByName(const char* hostname, IPAddress& result);
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int hostByName(const String &hostname, IPAddress& result) { return hostByName(hostname.c_str(), result); }
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uint8_t ping(const char* hostname, uint8_t ttl = 128);
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uint8_t ping(const String &hostname, uint8_t ttl = 128);
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uint8_t ping(IPAddress host, uint8_t ttl = 128);
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void refresh(void);
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private:

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