implemented netowrk interfaces specific clients

Author: andreagilardoni

Diff for: libraries/Ethernet/src/EthernetClient.h

@@ -5,9 +5,13 @@
 #include "lwipClient.h"
 
 class EthernetClient : public lwipClient {
-   public:
-   EthernetClient() {}
-   EthernetClient(struct tcp_struct *tcpClient) : lwipClient() {} // FIXME
+public:
+   EthernetClient() {
+      this->bindCNetIf(Ethernet);
+   }
+   EthernetClient(struct tcp_pcb *pcb) : lwipClient(pcb) {
+      this->bindCNetIf(Ethernet);
+   }
 };
 
 #endif

Diff for: libraries/WiFi/src/WiFiClient.h

@@ -6,8 +6,12 @@
 
 class WiFiClient : public lwipClient {
    public:
-   WiFiClient() {}
-   WiFiClient(struct tcp_struct *tcpClient) : lwipClient(tcpClient) {}
+   WiFiClient() {
+      this->bindCNetIf(WiFi);
+   }
+   WiFiClient(struct tcp_pcb *pcb) : lwipClient(pcb) {
+      this->bindCNetIf(WiFi);
+   }
 };
 
 #endif

Diff for: libraries/lwIpWrapper/src/CNetIf.h

@@ -97,6 +97,7 @@ typedef enum {
 #define INVALID_RESPONSE -4
 
 class CLwipIf;
+class lwipClient;
 
 /* Base class implements DHCP, derived class will switch it on or off */
 class CNetIf: public NetworkInterface {
@@ -238,7 +239,7 @@ class CWifiStation : public CNetIf {
 
     virtual void task() override;
 
-    virtual int getMacAddress(uint8_t* mac) override;
+    virtual int getMacAddress(uint8_t* mac) override {}
 
     virtual const char* getSSID();
     virtual uint8_t* getBSSID(uint8_t* bssid);
@@ -277,7 +278,7 @@ class CWifiSoftAp : public CNetIf {
     int startSoftAp(const char* ssid, const char* passphrase=nullptr, uint8_t channel=0);
     int stopSoftAp();
 
-    virtual int getMacAddress(uint8_t* mac) override;
+    virtual int getMacAddress(uint8_t* mac) override {}
 
     virtual const char* getSSID();
     virtual uint8_t* getBSSID(uint8_t* bssid);
@@ -357,3 +358,6 @@ class CLwipIf {
     FspTimer timer;
 #endif
 };
+
+extern CEth Ethernet;
+extern CWifiStation WiFi;

Diff for: libraries/lwIpWrapper/src/lwipClient.h

@@ -3,6 +3,7 @@
 #include <lwip/include/lwip/tcp.h>
 #include <IPAddress.h>
 #include <Print.h>
+#include "CNetIf.h"
 
 // TODO improve documentation
 
@@ -67,6 +68,10 @@ class lwipClient : public arduino::Client {
         _timeout = timeout;
     }
 
+    void bindCNetIf(CNetIf &n) {
+        tcp_bind_netif(this->pcb, n.getNi());
+    }
+
     friend class lwipServer;
 
     using Print::write;
@@ -82,7 +87,7 @@ class lwipClient : public arduino::Client {
     // TCP related info of the socket
     _tcp_state_t state =        TCP_NONE;
     struct pbuf* pbuf_head =    nullptr;
-    struct tcp_pcb* pcb =              nullptr;
+    struct tcp_pcb* pcb =       nullptr;
     uint16_t pbuf_offset =      0;
 
     uint16_t _timeout = 10000;