Update TimerDemo.c to test the new vTimerSetTimerID() function.

Update WinPCap NetworkInterface.c for FreeRTOS+UDP to correctly store a pointer to the network buffer structure at the beginning of the network buffer.

FreeRTOS-Plus/Demo/FreeRTOS_Plus_UDP_and_CLI_Windows_Simulator/FreeRTOSConfig.h

@@ -185,13 +185,16 @@ configNETWORK_INTERFACE_TO_USE to 2 results in the wireless network being
 used. */
 #define configNETWORK_INTERFACE_TO_USE 4L
 
+/* Only when using BufferAllocation_1.c. */
+#define configUSE_STATIC_BUFFERS 1
+
 /* The address of an echo server that will be used by the two demo echo client
 tasks.
 http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/Embedded_Ethernet_Examples/Common_Echo_Clients.shtml */
-#define configECHO_SERVER_ADDR0	10
-#define configECHO_SERVER_ADDR1 134
-#define configECHO_SERVER_ADDR2 134
-#define configECHO_SERVER_ADDR3 71
+#define configECHO_SERVER_ADDR0	172
+#define configECHO_SERVER_ADDR1 25
+#define configECHO_SERVER_ADDR2 218
+#define configECHO_SERVER_ADDR3 100
 
 /* Default MAC address configuration.  The demo creates a virtual network
 connection that uses this MAC address by accessing the raw Ethernet/WiFi data

FreeRTOS-Plus/Demo/FreeRTOS_Plus_UDP_and_CLI_Windows_Simulator/WIN32.vcxproj

@@ -139,6 +139,9 @@
     <ClCompile Include="..\..\Source\FreeRTOS-Plus-UDP\FreeRTOS_DNS.c" />
     <ClCompile Include="..\..\Source\FreeRTOS-Plus-UDP\FreeRTOS_Sockets.c" />
     <ClCompile Include="..\..\Source\FreeRTOS-Plus-UDP\FreeRTOS_UDP_IP.c" />
+    <ClCompile Include="..\..\Source\FreeRTOS-Plus-UDP\portable\BufferManagement\BufferAllocation_1.c">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\..\Source\FreeRTOS-Plus-UDP\portable\BufferManagement\BufferAllocation_2.c" />
     <ClCompile Include="..\..\Source\FreeRTOS-Plus-UDP\portable\NetworkInterface\WinPCap\NetworkInterface.c" />
     <ClCompile Include="..\Common\FreeRTOS_Plus_UDP_Demos\CLICommands\CLI-commands.c" />

FreeRTOS-Plus/Demo/FreeRTOS_Plus_UDP_and_CLI_Windows_Simulator/WIN32.vcxproj.filters

@@ -109,6 +109,9 @@
     <ClCompile Include="DemoTasks\SelectServer.c">
       <Filter>Demo App Source\DemoTasks</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\Source\FreeRTOS-Plus-UDP\portable\BufferManagement\BufferAllocation_1.c">
+      <Filter>FreeRTOS+\FreeRTOS+UDP\portable</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="FreeRTOSConfig.h">

FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/FreeRTOS_DHCP.c

@@ -630,6 +630,7 @@ static uint8_t *prvCreatePartDHCPMessage( struct freertos_sockaddr *pxAddress, x
 xDHCPMessage_t *pxDHCPMessage;
 const size_t xRequiredBufferSize = sizeof( xDHCPMessage_t ) + xOptionsArraySize;
 uint8_t *pucUDPPayloadBuffer;
+static uint8_t ucUseBroadcastFlag = pdFALSE;
 
 	/* Get a buffer.  This uses a maximum delay, but the delay will be capped
 	to ipconfigMAX_SEND_BLOCK_TIME_TICKS so the return value still needs to be
@@ -649,7 +650,19 @@ uint8_t *pucUDPPayloadBuffer;
 	pxDHCPMessage->ucAddressLength = dhcpETHERNET_ADDRESS_LENGTH;
 	pxDHCPMessage->ulTransactionID = ulTransactionId;
 	pxDHCPMessage->ulDHCPCookie = dhcpCOOKIE;
-	pxDHCPMessage->usFlags = dhcpBROADCAST;
+
+	/* For maximum possibility of success, alternate between broadcast and non
+	broadcast. */
+	ucUseBroadcastFlag = !ucUseBroadcastFlag;
+	if( ucUseBroadcastFlag == pdTRUE )
+	{
+		pxDHCPMessage->usFlags = dhcpBROADCAST;
+	}
+	else
+	{
+		pxDHCPMessage->usFlags = 0;
+	}
+
 	memcpy( ( void * ) &( pxDHCPMessage->ucClientHardwareAddress[ 0 ] ), ( void * ) pxMACAddress, sizeof( xMACAddress_t ) );
 
 	/* Copy in the const part of the options options. */

FreeRTOS-Plus/Source/FreeRTOS-Plus-UDP/portable/NetworkInterface/WinPCap/NetworkInterface.c

@@ -117,7 +117,7 @@ this case the network buffers are declared in NetworkInterface.c because, as
 this file is only used on Windows machines, wasting a few bytes in buffers that
 never get used does not matter (the buffers will not get used if the dynamic
 payload allocation file is included in the project). */
-static uint8_t ucBuffers[ ipconfigNUM_NETWORK_BUFFERS ][ ipTOTAL_ETHERNET_FRAME_SIZE ];
+static uint8_t ucBuffers[ ipconfigNUM_NETWORK_BUFFERS ][ ipTOTAL_ETHERNET_FRAME_SIZE + ipBUFFER_PADDING ];
 
 /* The queue used to communicate Ethernet events with the IP task. */
 extern xQueueHandle xNetworkEventQueue;
@@ -472,10 +472,18 @@ eFrameProcessingResult_t eResult;
 	void vNetworkInterfaceAllocateRAMToBuffers( xNetworkBufferDescriptor_t pxNetworkBuffers[ ipconfigNUM_NETWORK_BUFFERS ] )
 	{
 	BaseType_t x;
+	xNetworkBufferDescriptor_t **ppxStartOfBuffer;
 
 		for( x = 0; x < ipconfigNUM_NETWORK_BUFFERS; x++ )
 		{
-			pxNetworkBuffers[ x ].pucEthernetBuffer = &( ucBuffers[ x ][ 0 ] );
+			/* Place a pointer to the network buffer structure at the beginning
+			of the buffer that will be allocated to the structure. */
+			ppxStartOfBuffer = ( xNetworkBufferDescriptor_t ** ) &( ucBuffers[ x ][ 0 ] );
+			*ppxStartOfBuffer = &( pxNetworkBuffers[ x ] );
+			
+			/* Allocate the buffer to the network buffer structure, jumping over
+			the bytes where the pointer to the network buffer is now stored. */
+			pxNetworkBuffers[ x ].pucEthernetBuffer = &( ucBuffers[ x ][ ipBUFFER_PADDING ] );
 		}
 	}
 #endif

FreeRTOS/Demo/Common/Minimal/TimerDemo.c

@@ -192,7 +192,7 @@ static void prvTimerTestTask( void *pvParameters )
 	xOneShotTimer = xTimerCreate(	"Oneshot Timer",				/* Text name to facilitate debugging.  The kernel does not use this itself. */
 									tmrdemoONE_SHOT_TIMER_PERIOD,	/* The period for the timer. */
 									pdFALSE,						/* Don't auto-reload - hence a one shot timer. */
-									( void * ) 0,					/* The timer identifier.  In this case this is not used as the timer has its own callback. */
+									( void * ) 0,					/* The timer identifier.  Initialise to 0, then increment each time it is called. */
 									prvOneShotTimerCallback );		/* The callback to be called when the timer expires. */
 
 	if( xOneShotTimer == NULL )
@@ -1062,9 +1062,22 @@ uint32_t ulTimerID;
 
 static void prvOneShotTimerCallback( TimerHandle_t pxExpiredTimer )
 {
-	/* The parameter is not used in this case as only one timer uses this
-	callback function. */
-	( void ) pxExpiredTimer;
+/* A count is kept of the number of times this callback function is executed.
+The count is stored as the timer's ID.  This is only done to test the
+vTimerSetTimerID() function. */
+static uint32_t ulCallCount = 0;
+uint32_t ulLastCallCount;
+
+	/* Obtain the timer's ID, which should be a count of the number of times
+	this callback function has been executed. */
+	ulLastCallCount = ( uint32_t ) pvTimerGetTimerID( pxExpiredTimer );
+	configASSERT( ulLastCallCount == ulCallCount );
+
+	/* Increment the call count, then save it back as the timer's ID.  This is
+	only done to test the vTimerSetTimerID() API function. */
+	ulLastCallCount++;
+	vTimerSetTimerID( pxExpiredTimer, ( void * ) ulLastCallCount );
+	ulCallCount++;	
 
 	ucOneShotTimerCounter++;
 }