WIP : Adding Update_MACAddr function to support Network Interface (#779)

* Adding Update_MACAddr function to support Network Interface

* Changing the backward compatible flag

Author: kar-rahul-aws

source/FreeRTOS_IP.c

@@ -2231,6 +2231,158 @@ uint32_t FreeRTOS_GetIPAddress( void )
 }
 /*-----------------------------------------------------------*/
 
+#if defined( ipconfigIPv4_BACKWARD_COMPATIBLE ) && ( ipconfigIPv4_BACKWARD_COMPATIBLE == 1 )
+
+/*
+ * The helper functions here below assume that there is a single
+ * interface and a single end-point (ipconfigIPv4_BACKWARD_COMPATIBLE)
+ */
+
+/**
+ * @brief Sets the IP address of the NIC.
+ *
+ * @param[in] ulIPAddress: IP address of the NIC to be set.
+ */
+    void FreeRTOS_SetIPAddress( uint32_t ulIPAddress )
+    {
+        /* Sets the IP address of the NIC. */
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            pxEndPoint->ipv4_settings.ulIPAddress = ulIPAddress;
+        }
+    }
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief Get the gateway address of the subnet.
+ *
+ * @return The IP-address of the gateway, zero if a gateway is
+ *         not used/defined.
+ */
+    uint32_t FreeRTOS_GetGatewayAddress( void )
+    {
+        uint32_t ulIPAddress = 0U;
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            ulIPAddress = pxEndPoint->ipv4_settings.ulGatewayAddress;
+        }
+
+        return ulIPAddress;
+    }
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief Get the DNS server address.
+ *
+ * @return The IP address of the DNS server.
+ */
+    uint32_t FreeRTOS_GetDNSServerAddress( void )
+    {
+        uint32_t ulIPAddress = 0U;
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            ulIPAddress = pxEndPoint->ipv4_settings.ulDNSServerAddresses[ 0 ];
+        }
+
+        return ulIPAddress;
+    }
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief Get the netmask for the subnet.
+ *
+ * @return The 32 bit netmask for the subnet.
+ */
+    uint32_t FreeRTOS_GetNetmask( void )
+    {
+        uint32_t ulIPAddress = 0U;
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            ulIPAddress = pxEndPoint->ipv4_settings.ulNetMask;
+        }
+
+        return ulIPAddress;
+    }
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief Update the MAC address.
+ *
+ * @param[in] ucMACAddress: the MAC address to be set.
+ */
+    void FreeRTOS_UpdateMACAddress( const uint8_t ucMACAddress[ ipMAC_ADDRESS_LENGTH_BYTES ] )
+    {
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            /* Copy the MAC address at the start of the default packet header fragment. */
+            ( void ) memcpy( pxEndPoint->xMACAddress.ucBytes, ( const void * ) ucMACAddress, ( size_t ) ipMAC_ADDRESS_LENGTH_BYTES );
+        }
+    }
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief Get the MAC address.
+ *
+ * @return The pointer to MAC address.
+ */
+    const uint8_t * FreeRTOS_GetMACAddress( void )
+    {
+        const uint8_t * pucReturn = NULL;
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            /* Copy the MAC address at the start of the default packet header fragment. */
+            pucReturn = pxEndPoint->xMACAddress.ucBytes;
+        }
+
+        return pucReturn;
+    }
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief Set the netmask for the subnet.
+ *
+ * @param[in] ulNetmask: The 32 bit netmask of the subnet.
+ */
+    void FreeRTOS_SetNetmask( uint32_t ulNetmask )
+    {
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            pxEndPoint->ipv4_settings.ulNetMask = ulNetmask;
+        }
+    }
+/*-----------------------------------------------------------*/
+
+/**
+ * @brief Set the gateway address.
+ *
+ * @param[in] ulGatewayAddress: The gateway address.
+ */
+    void FreeRTOS_SetGatewayAddress( uint32_t ulGatewayAddress )
+    {
+        NetworkEndPoint_t * pxEndPoint = FreeRTOS_FirstEndPoint( NULL );
+
+        if( pxEndPoint != NULL )
+        {
+            pxEndPoint->ipv4_settings.ulGatewayAddress = ulGatewayAddress;
+        }
+    }
+/*-----------------------------------------------------------*/
+#endif /* ( ipconfigIPv4_BACKWARD_COMPATIBLE != 0 ) */
+
 /**
  * @brief Returns whether the IP task is ready.
  *