WinDivert 2.0.1-rc bugfix release.

- Fix broken WinDivertCondExecFilter().  This
  caused some callouts to be needlessly installed.
- Fix broken WinDivertByteSwap128().
- Rename "Ipv6" -> "IPv6" to keep API consistent.
- Samples now use correct MTU.

CHANGELOG

@@ -127,5 +127,173 @@ WinDivert 1.4.2
     - Add workaround for pseudo checksum issue (see #134).
 WinDivert 1.4.3
     - WinDivert.dll no longer depends on MSVCRT*.dll.
-WinDivert 1.4.4
-    - Optimize pseudo checksum calculation.
+WinDivert 2.0.0-rc
+    - Add 3 new layers:
+      * WINDIVERT_LAYER_FLOW for tracking network "flow" events.
+      * WINDIVERT_LAYER_SOCKET for tracking "socket" events.
+      * WINDIVERT_LAYER_REFLECT for tracking WinDivert events.
+    - WINDIVERT_ADDRESS has been re-factored as follows:
+      * addr.Layer: The WINDIVERT_LAYER_* value for the handle.
+      * addr.Event: A WINDIVERT_EVENT_* value representing the event (see
+        below).
+      * addr.Sniffed: Indicates that the event was sniffed.
+      * addr.Outbound: Replaces addr.Direction.
+      * addr.IPv6: Indicates an IPv6 packet.
+      * addr.Network.IfIdx: Replaces addr.IfIdx.
+      * addr.Network.SubIfIdx: Replaces addr.SubIfIdx.
+      * addr.Flow.EndpointId: The endpoint ID of the flow.
+      * addr.Flow.ParentEndpointId: The parent endpoint ID of the flow.
+      * addr.Flow.ProcessId: The ID of process that created the flow.
+      * addr.Flow.LocalAddr: The flow's local address.
+      * addr.Flow.RemoteAddr: The flow's remote address.
+      * addr.Flow.LocalPort: The flow's local port.
+      * addr.Flow.RemotePort: The flow's remote port.
+      * addr.Flow.Protocol: The flow's protocol.
+      * addr.Socket.EndpointId: The endpoint ID of the operation.
+      * addr.Socket.ParentEndpointId: The parent endpoint ID of the operation.
+      * addr.Socket.ProcessId: The ID of process that created the socket.
+      * addr.Socket.LocalAddr: The socket's local address.
+      * addr.Socket.RemoteAddr: The socket's remote address.
+      * addr.Socket.LocalPort: The socket's local port.
+      * addr.Socket.RemotePort: The socket's remote port.
+      * addr.Socket.Protocol: The socket's protocol.
+      * addr.Reflect.ProcessId: The ID of process that created opened the
+        handle.
+      * addr.Reflect.Timestamp: The timestamp of the handle.
+      * addr.Reflect.Layer: The layer of the handle.
+      * addr.Reflect.Flags: The flags of the handle.
+      * addr.Reflect.Priority: The priority of the handle.
+    - The addr.Event field can take the following values:
+      * WINDIVERT_EVENT_NETWORK_PACKET: (NETWORK/NETWORK_FORWARD layers) a new
+        packet was diverted.
+      * WINDIVERT_EVENT_FLOW_ESTABLISHED: (FLOW layer) a new flow is
+        established.
+      * WINDIVERT_EVENT_FLOW_DELETED: (FLOW layer) an existing flow is
+        deleted.
+      * WINDIVERT_EVENT_SOCKET_BIND: (SOCKET layer) a socket bind()
+        operation occurred.
+      * WINDIVERT_EVENT_SOCKET_CONNECT: (SOCKET layer) a socket connect()
+        operation occurred.
+      * WINDIVERT_EVENT_SOCKET_LISTEN: (SOCKET layer) a socket listen()
+        operation occurred.
+      * WINDIVERT_EVENT_SOCKET_ACCEPT: (SOCKET layer) a socket accept()
+        operation occurred.
+      * WINDIVERT_EVENT_SOCKET_CLOSE: (SOCKET layer) a socket endpoint is
+        closed.
+      * WINDIVERT_EVENT_REFLECT_OPEN: (REFLECT layer) a WinDivertOpen()
+        operation occurred.
+      * WINDIVERT_EVENT_REFLECT_CLOSE: (REFLECT layer) a WinDivertClose()
+        operation occurred.
+    - The WinDivert filter language has been expanded with new fields:
+      * event: The event value.
+      * timestamp: The event timestamp.
+      * endpointId: (FLOW/SOCKET layers) the endpoint ID.
+      * parentEndpointId: (FLOW/SOCKET layers) the parent endpoint ID.
+      * processId: (FLOW/SOCKET/REFLECT layers) the process ID.
+      * localAddr: (NETWORK/NETWORK_FORWARD/FLOW/SOCKET layers) the local
+        address.
+      * localPort: (NETWORK/NETWORK_FORWARD/FLOW/SOCKET layers) the local
+        port.
+      * remoteAddr: (NETWORK/NETWORK_FORWARD/FLOW/SOCKET layers) the remote
+        address.
+      * remotePort: (NETWORK/NETWORK_FORWARD/FLOW/SOCKET layers) the remote
+        port.
+      * protocol: (NETWORK/NETWORK_FORWARD/FLOW/SOCKET layers) the protocol.
+      * priority: (REFLECT layer) the handle's priority.
+      * layer: (REFLECT layer) the handle's layer.
+      * random8: (NETWORK/NETWORK_FORWARD layers) an 8-bit pseudo random
+        number.
+      * random16: (NETWORK/NETWORK_FORWARD layers) a 16-bit pseudo random
+        number.
+      * random32: (NETWORK/NETWORK_FORWARD layers) a 32-bit pseudo random
+        number.
+      * length: (NETWORK/NETWORK_FORWARD layers) the packet length.
+      * zero: The value "0".
+    - The WinDivert filter language can now address packet/payload data for
+      the NETWORK/NETWORK_FORWARD layers:
+      * packet[i]: the ith packet byte.
+      * packet16[i]: the ith packet 16bit word.
+      * packet32[i]: the ith packet 32bit word.
+      * tcp.payload[i]: the ith TCP payload byte.
+      * tcp.payload16[i]: the ith TCP 16bit word.
+      * tcp.payload32[i]: the ith TCP 32bit word.
+      * udp.payload[i]: the ith UDP payload byte.
+      * udp.payload16[i]: the ith UDP 16bit word.
+      * udp.payload32[i]: the ith UDP 32bit word.
+      The index (i) can be:
+      * An ordinary integer representing word addressing.
+      * A 'b' decorated integer representing byte-level addressing.
+      Furthermore, the index can be:
+      * Positive, representing addressing from the start of the
+        packet/payload.
+      * Negative, representing addressing from the end of the packet/payload.
+    - The WinDivert filter language now supports several symbolic values:
+      * PACKET: (NETWORK/NETWORK_FORWARD layers) equal to
+        WINDIVERT_EVENT_NETWORK_PACKET
+      * ESTABLISHED: (FLOW layer) equal to WINDIVERT_EVENT_FLOW_ESTABLISHED.
+      * DELETED: (FLOW LAYER) equal to WINDIVERT_EVENT_FLOW_DELETED.
+      * BIND: (SOCKET layer) equal to WINDIVERT_EVENT_SOCKET_BIND.
+      * CONNECT: (SOCKET layer) equal to WINDIVERT_EVENT_SOCKET_CONNECT.
+      * LISTEN: (SOCKET layer) equal to WINDIVERT_EVENT_SOCKET_LISTEN.
+      * ACCEPT: (SOCKET layer) equal to WINDIVERT_EVENT_SOCKET_ACCEPT.
+        WINDIVERT_LAYER_NETWORK_FORWARD.
+      * CLOSE: (SOCKET layer) equal to WINDIVERT_EVENT_SOCKET_CLOSE.
+      * OPEN: (REFLECT layer) equal to WINDIVERT_EVENT_REFLECT_OPEN.
+      * CLOSE: (REFLECT layer) equal to WINDIVERT_EVENT_REFLECT_CLOSE.
+      * NETWORK: (REFLECT layer) equal to WINDIVERT_LAYER_NETWORK.
+      * NETWORK_FORWARD: (REFLECT layer) equal to
+      * FLOW: (REFLECT layer) equal to WINDIVERT_LAYER_FLOW.
+      * SOCKET: (REFLECT layer) equal to WINDIVERT_LAYER_SOCKET.
+      * REFLECT: (REFLECT layer) equal to WINDIVERT_LAYER_REFLECT.
+      * TRUE: equal to 1.
+      * FALSE: equal to 0.
+      * TCP: equal to IPPROTO_TCP (6).
+      * UDP: equal to IPPROTO_UDP (17).
+      * ICMP: equal to IPPROTO_ICMP (1).
+      * ICMPV6: equal to IPPROTO_ICMPV6 (58).
+    - WinDivertOpen() now supports several new flags:
+      * WINDIVERT_FLAG_RECV_ONLY/WINDIVERT_FLAG_READ_ONLY: The handle cannot
+        be used for send operations.
+      * WINDIVERT_FLAG_SEND_ONLY/WINDIVERT_FLAG_WRITE_ONLY: The handle cannot
+        be used for receive operations.
+      * WINDIVERT_FLAG_NO_INSTALL: If the WinDivert driver is not already
+        installed/loaded, then WinDivertOpen() will fail with an error.
+    - WinDivertRecvEx()/WinDivertSendEx() now support a "batch" mode that
+      allows more than one packet to be received/sent at once.  The number
+      of packets is determined by a new pAddrLen/addrLen parameter.
+    - Add a new WinDivertShutdown() function that supports the following
+      modes:
+      * WINDIVERT_SHUTDOWN_RECV: Disable the queuing new packets.
+      * WINDIVERT_SHUTDOWN_SEND: Disable the sending of new packets.
+      * WINDIVERT_SHUTDOWN_BOTH: Equivalent to
+        (WINDIVERT_SHUTDOWN_RECV | WINDIVERT_SHUTDOWN_SEND).
+    - Add new "read-only" WinDivert parameters:
+      * WINDIVERT_PARAM_VERSION_MAJOR: Driver version (major).
+      * WINDIVERT_PARAM_VERSION_MINOR: Driver version (minor).
+    - Add a new WinDivertHelperHashPacket() helper function that calculates
+      a 64bit hash value of a packet.
+    - Add new WinDivertHelperFormatIPv4Address() and
+      WinDivertHelperFormatIPv6Address() helper functions that format
+      IPv4 and IPv6 addresses respectively.
+    - Replace WinDivertHelperCheckFilter() with a new
+      WinDivertHelperCompileFilter() helper function.  The latter can also be
+      used to compile a human-readable filter string into a more compact
+      "object" format.  The object format can be used in place of the
+      human readable format for all WinDivert operations.
+    - Add a new WinDivertHelperFormatFilter() helper function that formats a
+      filter string into a normalized form.  It also can be used to
+      "de-compile" the object format into a human readable form.
+    - Add a new WinDivertHelperDecrementTTL() function that decrements the
+      ip.TTL/ipv6.HopLimit field of a packet.
+    - Add new WinDivertHelperNto*()/WinDivertHelperHton*() helper functions
+      for swapping from network to host byte ordering, and vice versa.
+    - WinDivertOpen() priorities now are ascending, meaning that higher
+      values correspond to higher priorities.
+    - The last two arguments for WinDivertRecv() and WinDivertSend() have been
+      swapped.
+WinDivert 2.0.1-rc
+    - Fix WFP callout install optimization bug.
+    - Fix WinDivertHelperNtohIpv6Address/WinDivertHelperHtonIpv6Address bug.
+    - Rename the following functions for consistency:
+      * WinDivertHelperNtohIpv6Address -> WinDivertHelperNtohIPv6Address
+      * WinDivertHelperHtonIpv6Address -> WinDivertHelperHtonIPv6Address

VERSION

@@ -1 +1 @@
-2.0.0
+2.0.1-rc

dll/windivert.c

@@ -1,6 +1,6 @@
 /*
  * windivert.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -50,7 +50,13 @@
 #define WINDIVERT_DRIVER_NAME           L"WinDivert"
 #define WINDIVERT_DRIVER32_SYS          L"\\" WINDIVERT_DRIVER_NAME L"32.sys"
 #define WINDIVERT_DRIVER64_SYS          L"\\" WINDIVERT_DRIVER_NAME L"64.sys"
+#define WINDIVERT_VERSION_MAJOR_MIN     2
 
+#ifndef ERROR_DRIVER_FAILED_PRIOR_UNLOAD
+#define ERROR_DRIVER_FAILED_PRIOR_UNLOAD    ((DWORD)654)
+#endif
+
+static BOOLEAN WinDivertIsDigit(char c);
 static BOOLEAN WinDivertIsXDigit(char c);
 static BOOLEAN WinDivertIsSpace(char c);
 static BOOLEAN WinDivertIsAlNum(char c);
@@ -60,8 +66,11 @@ static BOOLEAN WinDivertStrLen(const wchar_t *s, size_t maxlen,
 static BOOLEAN WinDivertStrCpy(wchar_t *dst, size_t dstlen,
     const wchar_t *src);
 static int WinDivertStrCmp(const char *s, const char *t);
-static BOOLEAN WinDivertAToI(const char *str, char **endptr, UINT32 *intptr);
-static BOOLEAN WinDivertAToX(const char *str, char **endptr, UINT32 *intptr);
+static BOOLEAN WinDivertAToI(const char *str, char **endptr, UINT32 *intptr,
+    UINT size);
+static BOOLEAN WinDivertAToX(const char *str, char **endptr, UINT32 *intptr,
+    UINT size, BOOL prefix);
+static UINT32 WinDivertDivTen128(UINT32 *a);
 
 /*
  * Misc.
@@ -69,21 +78,43 @@ static BOOLEAN WinDivertAToX(const char *str, char **endptr, UINT32 *intptr);
 #ifndef UINT8_MAX
 #define UINT8_MAX       0xFF
 #endif
+#ifndef UINT16_MAX
+#define UINT16_MAX      0xFFFF
+#endif
 #ifndef UINT32_MAX
 #define UINT32_MAX      0xFFFFFFFF
 #endif
 
+#ifdef _MSC_VER
+
+#pragma intrinsic(memcpy)
+#pragma function(memcpy)
+void *memcpy(void *dst, const void *src, size_t n)
+{
+    size_t i;
+    for (i = 0; i < n; i++)
+        ((UINT8 *)dst)[i] = ((const UINT8 *)src)[i];
+    return dst;
+}
+
+#pragma intrinsic(memset)
+#pragma function(memset)
+void *memset(void *dst, int c, size_t n)
+{
+    size_t i;
+    for (i = 0; i < n; i++)
+        ((UINT8 *)dst)[i] = (UINT8)c;
+    return dst;
+}
+
+#endif
+
 /*
  * Prototypes.
  */
 static BOOLEAN WinDivertUse32Bit(void);
 static BOOLEAN WinDivertGetDriverFileName(LPWSTR sys_str);
-static SC_HANDLE WinDivertDriverInstall(VOID);
-static BOOL WinDivertIoControl(HANDLE handle, DWORD code, UINT64 arg1,
-    UINT64 arg2, PVOID buf, UINT len, UINT *iolen);
-static BOOL WinDivertIoControlEx(HANDLE handle, DWORD code, UINT64 arg1,
-    UINT64 arg2, PVOID buf, UINT len, UINT *iolen, LPOVERLAPPED overlapped);
-static UINT8 WinDivertSkipExtHeaders(UINT8 proto, UINT8 **header, UINT *len);
+static BOOLEAN WinDivertDriverInstall(VOID);
 
 /*
  * Include the helper API implementation.
@@ -217,12 +248,28 @@ static BOOLEAN WinDivertGetDriverFileName(LPWSTR sys_str)
 /*
  * Install the WinDivert driver.
  */
-static SC_HANDLE WinDivertDriverInstall(VOID)
+static BOOLEAN WinDivertDriverInstall(VOID)
 {
-    DWORD err, retries = 2;
+    DWORD err;
     SC_HANDLE manager = NULL, service = NULL;
     wchar_t windivert_sys[MAX_PATH+1];
-    SERVICE_STATUS status;
+    HANDLE mutex = NULL;
+    BOOL success = TRUE;
+
+    // Create & lock a named mutex.  This is to stop two processes trying
+    // to start the driver at the same time.
+    mutex = CreateMutex(NULL, FALSE, L"WinDivertDriverInstallMutex");
+    if (mutex == NULL)
+    {
+        return FALSE;
+    }
+    switch (WaitForSingleObject(mutex, INFINITE))
+    {
+        case WAIT_OBJECT_0: case WAIT_ABANDONED:
+            break;
+        default:
+            return FALSE;
+    }
 
     // Open the service manager:
     manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
@@ -232,7 +279,6 @@ static SC_HANDLE WinDivertDriverInstall(VOID)
     }
 
     // Check if the WinDivert service already exists; if so, start it.
-WinDivertDriverInstallReTry:
     service = OpenService(manager, WINDIVERT_DEVICE_NAME, SERVICE_ALL_ACCESS);
     if (service != NULL)
     {
@@ -254,36 +300,29 @@ WinDivertDriverInstallReTry:
     {
         if (GetLastError() == ERROR_SERVICE_EXISTS) 
         {
-            if (retries != 0)
-            {
-                retries--;
-                goto WinDivertDriverInstallReTry;
-            }
+            service = OpenService(manager, WINDIVERT_DEVICE_NAME,
+                SERVICE_ALL_ACCESS);
         }
         goto WinDivertDriverInstallExit;
     }
 
 WinDivertDriverInstallExit:
 
+    success = (service != NULL);
     if (service != NULL)
     {
         // Start the service:
-        if (!StartService(service, 0, NULL))
+        success = StartService(service, 0, NULL);
+        if (!success)
         {
-            err = GetLastError();
-            if (err == ERROR_SERVICE_ALREADY_RUNNING)
-            {
-                SetLastError(0);
-            }
-            else
-            {
-                // Failed to start service; clean-up:
-                ControlService(service, SERVICE_CONTROL_STOP, &status);
-                DeleteService(service);
-                CloseServiceHandle(service);
-                service = NULL;
-                SetLastError(err);
-            }
+            success = (GetLastError() == ERROR_SERVICE_ALREADY_RUNNING);
+        }
+        else
+        {
+            // Mark the service for deletion.  This will cause the driver to
+            // unload if (1) there are no more open handles, and (2) the
+            // service is STOPPED or on system reboot.
+            (VOID)DeleteService(service);
         }
     }
 
@@ -292,16 +331,41 @@ WinDivertDriverInstallExit:
     {
         CloseServiceHandle(manager);
     }
+    if (service != NULL)
+    {
+        CloseServiceHandle(service);
+    }
+    ReleaseMutex(mutex);
+    CloseHandle(mutex);
     SetLastError(err);
     
-    return service;
+    return success;
+}
+
+/*
+ * Perform an (overlapped) DeviceIoControl.
+ */
+static BOOL WinDivertIoControlEx(HANDLE handle, DWORD code,
+    PWINDIVERT_IOCTL ioctl, PVOID buf, UINT len, UINT *iolen,
+    LPOVERLAPPED overlapped)
+{
+    BOOL result;
+    DWORD iolen0;
+
+    result = DeviceIoControl(handle, code, ioctl, sizeof(WINDIVERT_IOCTL), buf,
+        (DWORD)len, &iolen0, overlapped);
+    if (result && iolen != NULL)
+    {
+        *iolen = (UINT)iolen0;
+    }
+    return result;
 }
 
 /*
  * Perform a DeviceIoControl.
  */
-static BOOL WinDivertIoControl(HANDLE handle, DWORD code, UINT64 arg1,
-    UINT64 arg2, PVOID buf, UINT len, UINT *iolen)
+static BOOL WinDivertIoControl(HANDLE handle, DWORD code,
+    PWINDIVERT_IOCTL ioctl, PVOID buf, UINT len, UINT *iolen)
 {
     OVERLAPPED overlapped;
     DWORD iolen0;
@@ -320,7 +384,7 @@ static BOOL WinDivertIoControl(HANDLE handle, DWORD code, UINT64 arg1,
 
     memset(&overlapped, 0, sizeof(overlapped));
     overlapped.hEvent = event;
-    if (!WinDivertIoControlEx(handle, code, arg1, arg2, buf, len, iolen,
+    if (!WinDivertIoControlEx(handle, code, ioctl, buf, len, iolen,
             &overlapped))
     {
         if (GetLastError() != ERROR_IO_PENDING ||
@@ -336,42 +400,35 @@ static BOOL WinDivertIoControl(HANDLE handle, DWORD code, UINT64 arg1,
     return TRUE;
 }
 
-/*
- * Perform an (overlapped) DeviceIoControl.
- */
-static BOOL WinDivertIoControlEx(HANDLE handle, DWORD code, UINT64 arg1,
-    UINT64 arg2, PVOID buf, UINT len, UINT *iolen, LPOVERLAPPED overlapped)
-{
-    WINDIVERT_IOCTL ioctl;
-    BOOL result;
-    DWORD iolen0;
-
-    ioctl.arg1 = arg1;
-    ioctl.arg2 = arg2;
-    result = DeviceIoControl(handle, code, &ioctl, sizeof(ioctl), buf,
-        (DWORD)len, &iolen0, overlapped);
-    if (result && iolen != NULL)
-    {
-        *iolen = (UINT)iolen0;
-    }
-    return result;
-}
-
 /*
  * Open a WinDivert handle.
  */
 extern HANDLE WinDivertOpen(const char *filter, WINDIVERT_LAYER layer,
     INT16 priority, UINT64 flags)
 {
-    WINDIVERT_FILTER object[WINDIVERT_FILTER_MAXLEN];
+    WINDIVERT_FILTER *object;
     UINT obj_len;
     ERROR comp_err;
     DWORD err;
-    HANDLE handle;
-    SC_HANDLE service;
-    UINT64 priority64, filter_flags;
- 
-    // Parameter checking.
+    HANDLE handle, pool;
+    UINT64 filter_flags;
+    WINDIVERT_IOCTL ioctl;
+    WINDIVERT_VERSION version;
+
+    // Static checks (should be compiled away if TRUE):
+    if (sizeof(WINDIVERT_ADDRESS) != 80 ||
+        sizeof(WINDIVERT_DATA_NETWORK) != 8 ||
+        offsetof(WINDIVERT_DATA_FLOW, Protocol) != 56 ||
+        offsetof(WINDIVERT_DATA_SOCKET, Protocol) != 56 ||
+        offsetof(WINDIVERT_DATA_REFLECT, Priority) != 24 ||
+        sizeof(WINDIVERT_FILTER) != 24 ||
+        offsetof(WINDIVERT_ADDRESS, Reserved3) != 16)
+    {
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return INVALID_HANDLE_VALUE;
+    }
+
+    // Parameter checking:
     switch (layer)
     {
         case WINDIVERT_LAYER_NETWORK:
@@ -398,9 +455,25 @@ extern HANDLE WinDivertOpen(const char *filter, WINDIVERT_LAYER layer,
     }
 
     // Compile & analyze the filter:
-    comp_err = WinDivertCompileFilter(filter, layer, object, &obj_len);
+    pool = HeapCreate(HEAP_NO_SERIALIZE, WINDIVERT_MIN_POOL_SIZE,
+        WINDIVERT_MAX_POOL_SIZE);
+    if (pool == NULL)
+    {
+        return FALSE;
+    }
+    object = HeapAlloc(pool, 0,
+        WINDIVERT_FILTER_MAXLEN * sizeof(WINDIVERT_FILTER));
+    if (object == NULL)
+    {
+        err = GetLastError();
+        HeapDestroy(pool);
+        SetLastError(err);
+        return FALSE;
+    }
+    comp_err = WinDivertCompileFilter(filter, pool, layer, object, &obj_len);
     if (IS_ERROR(comp_err))
     {
+        HeapDestroy(pool);
         SetLastError(ERROR_INVALID_PARAMETER);
         return INVALID_HANDLE_VALUE;
     }
@@ -415,82 +488,81 @@ extern HANDLE WinDivertOpen(const char *filter, WINDIVERT_LAYER layer,
         err = GetLastError();
         if (err != ERROR_FILE_NOT_FOUND && err != ERROR_PATH_NOT_FOUND)
         {
+            HeapDestroy(pool);
+            SetLastError(err);
             return INVALID_HANDLE_VALUE;
         }
 
         // Open failed because the device isn't installed; install it now.
         if ((flags & WINDIVERT_FLAG_NO_INSTALL) != 0)
         {
+            HeapDestroy(pool);
             SetLastError(ERROR_SERVICE_DOES_NOT_EXIST);
             return INVALID_HANDLE_VALUE;
         }
         SetLastError(0);
-        service = WinDivertDriverInstall();
-        if (service == NULL)
+        if (!WinDivertDriverInstall())
         {
-            if (GetLastError() == 0)
-            {
-                SetLastError(ERROR_OPEN_FAILED);
-            }
+            err = GetLastError();
+            err = (err == 0? ERROR_OPEN_FAILED: err);
+            HeapDestroy(pool);
+            SetLastError(err);
             return INVALID_HANDLE_VALUE;
         }
         handle = CreateFile(L"\\\\.\\" WINDIVERT_DEVICE_NAME,
             GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
             FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
             INVALID_HANDLE_VALUE);
-
-        // Schedule the service to be deleted (once all handles are closed).
-        DeleteService(service);
-        CloseServiceHandle(service);
-
         if (handle == INVALID_HANDLE_VALUE)
         {
+            err = GetLastError();
+            HeapDestroy(pool);
+            SetLastError(err);
             return INVALID_HANDLE_VALUE;
         }
     }
 
-    // Set the layer:
-    if (layer != WINDIVERT_LAYER_DEFAULT)
+    // Initialize the handle:
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.initialize.layer    = layer;
+    ioctl.initialize.priority = (INT32)priority + WINDIVERT_PRIORITY_MAX;
+    ioctl.initialize.flags    = flags;
+    memset(&version, 0, sizeof(version));
+    version.magic             = WINDIVERT_MAGIC_DLL;
+    version.major             = WINDIVERT_VERSION_MAJOR;
+    version.minor             = WINDIVERT_VERSION_MINOR;
+    version.bits              = 8 * sizeof(void *);
+    if (!WinDivertIoControl(handle, IOCTL_WINDIVERT_INITIALIZE, &ioctl,
+            &version, sizeof(version), NULL))
     {
-        if (!WinDivertIoControl(handle, IOCTL_WINDIVERT_SET_LAYER,
-                (UINT64)layer, 0, NULL, 0, NULL))
-        {
-            CloseHandle(handle);
-            return INVALID_HANDLE_VALUE;
-        }
+        err = GetLastError();
+        CloseHandle(handle);
+        HeapDestroy(pool);
+        SetLastError(err);
+        return INVALID_HANDLE_VALUE;
     }
-
-    // Set the flags:
-    if (flags != 0)
+    if (version.magic != WINDIVERT_MAGIC_SYS ||
+        version.major < WINDIVERT_VERSION_MAJOR_MIN)
     {
-        if (!WinDivertIoControl(handle, IOCTL_WINDIVERT_SET_FLAGS, flags, 0,
-                NULL, 0, NULL))
-        {
-            CloseHandle(handle);
-            return INVALID_HANDLE_VALUE;
-        }
-    }
-
-    // Set the priority:
-    if (priority != WINDIVERT_PRIORITY_DEFAULT)
-    {
-        // Make positive:
-        priority64 = (UINT64)((INT64)priority + WINDIVERT_PRIORITY_MAX);
-        if (!WinDivertIoControl(handle, IOCTL_WINDIVERT_SET_PRIORITY,
-                priority64, 0, NULL, 0, NULL))
-        {
-            CloseHandle(handle);
-            return INVALID_HANDLE_VALUE;
-        }
+        CloseHandle(handle);
+        HeapDestroy(pool);
+        SetLastError(ERROR_DRIVER_FAILED_PRIOR_UNLOAD);
+        return INVALID_HANDLE_VALUE;
     }
 
     // Start the filter:
-    if (!WinDivertIoControl(handle, IOCTL_WINDIVERT_START_FILTER,
-            filter_flags, 0, object, obj_len * sizeof(WINDIVERT_FILTER), NULL))
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.startup.flags = filter_flags;
+    if (!WinDivertIoControl(handle, IOCTL_WINDIVERT_STARTUP, &ioctl,
+            object, obj_len * sizeof(WINDIVERT_FILTER), NULL))
     {
+        err = GetLastError();
         CloseHandle(handle);
+        HeapDestroy(pool);
+        SetLastError(err);
         return INVALID_HANDLE_VALUE;
     }
+    HeapDestroy(pool);
 
     // Success!
     return handle;
@@ -500,10 +572,14 @@ extern HANDLE WinDivertOpen(const char *filter, WINDIVERT_LAYER layer,
  * Receive a WinDivert packet.
  */
 extern BOOL WinDivertRecv(HANDLE handle, PVOID pPacket, UINT packetLen,
-    PWINDIVERT_ADDRESS addr, UINT *readlen)
+    UINT *readLen, PWINDIVERT_ADDRESS addr)
 {
-    return WinDivertIoControl(handle, IOCTL_WINDIVERT_RECV, (UINT64)addr,
-        (UINT64)NULL, pPacket, packetLen, readlen);
+    WINDIVERT_IOCTL ioctl;
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.recv.addr = (UINT64)addr;
+    ioctl.recv.addr_len_ptr = (UINT64)NULL;
+    return WinDivertIoControl(handle, IOCTL_WINDIVERT_RECV, &ioctl,
+        pPacket, packetLen, readLen);
 }
 
 /*
@@ -513,6 +589,10 @@ extern BOOL WinDivertRecvEx(HANDLE handle, PVOID pPacket, UINT packetLen,
     UINT *readLen, UINT64 flags, PWINDIVERT_ADDRESS addr, UINT *pAddrLen,
     LPOVERLAPPED overlapped)
 {
+    WINDIVERT_IOCTL ioctl;
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.recv.addr = (UINT64)addr;
+    ioctl.recv.addr_len_ptr = (UINT64)pAddrLen;
     if (flags != 0)
     {
         SetLastError(ERROR_INVALID_PARAMETER);
@@ -520,14 +600,13 @@ extern BOOL WinDivertRecvEx(HANDLE handle, PVOID pPacket, UINT packetLen,
     }
     if (overlapped == NULL)
     {
-        return WinDivertIoControl(handle, IOCTL_WINDIVERT_RECV,
-            (UINT64)addr, (UINT64)pAddrLen, pPacket, packetLen, readLen);
+        return WinDivertIoControl(handle, IOCTL_WINDIVERT_RECV, &ioctl,
+            pPacket, packetLen, readLen);
     }
     else
     {
-        return WinDivertIoControlEx(handle, IOCTL_WINDIVERT_RECV,
-            (UINT64)addr, (UINT64)pAddrLen, pPacket, packetLen, readLen,
-            overlapped);
+        return WinDivertIoControlEx(handle, IOCTL_WINDIVERT_RECV, &ioctl,
+            pPacket, packetLen, readLen, overlapped);
     }
 }
 
@@ -535,10 +614,14 @@ extern BOOL WinDivertRecvEx(HANDLE handle, PVOID pPacket, UINT packetLen,
  * Send a WinDivert packet.
  */
 extern BOOL WinDivertSend(HANDLE handle, const VOID *pPacket, UINT packetLen,
-    const WINDIVERT_ADDRESS *addr, UINT *writelen)
+    UINT *writeLen, const WINDIVERT_ADDRESS *addr)
 {
-    return WinDivertIoControl(handle, IOCTL_WINDIVERT_SEND, (UINT64)addr,
-        sizeof(WINDIVERT_ADDRESS), (PVOID)pPacket, packetLen, writelen);
+    WINDIVERT_IOCTL ioctl;
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.send.addr = (UINT64)addr;
+    ioctl.send.addr_len = sizeof(WINDIVERT_ADDRESS);
+    return WinDivertIoControl(handle, IOCTL_WINDIVERT_SEND, &ioctl,
+        (PVOID)pPacket, packetLen, writeLen);
 }
 
 /*
@@ -548,6 +631,10 @@ extern BOOL WinDivertSendEx(HANDLE handle, const VOID *pPacket, UINT packetLen,
     UINT *writeLen, UINT64 flags, const WINDIVERT_ADDRESS *addr, UINT addrLen,
     LPOVERLAPPED overlapped)
 {
+    WINDIVERT_IOCTL ioctl;
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.send.addr = (UINT64)addr;
+    ioctl.send.addr_len = addrLen;
     if (flags != 0)
     {
         SetLastError(ERROR_INVALID_PARAMETER);
@@ -555,15 +642,13 @@ extern BOOL WinDivertSendEx(HANDLE handle, const VOID *pPacket, UINT packetLen,
     }
     if (overlapped == NULL)
     {
-        return WinDivertIoControl(handle, IOCTL_WINDIVERT_SEND,
-            (UINT64)addr, (UINT64)addrLen, (PVOID)pPacket, packetLen,
-            writeLen);
+        return WinDivertIoControl(handle, IOCTL_WINDIVERT_SEND, &ioctl,
+            (PVOID)pPacket, packetLen, writeLen);
     }
     else
     {
-        return WinDivertIoControlEx(handle, IOCTL_WINDIVERT_SEND,
-            (UINT64)addr, (UINT64)addrLen, (PVOID)pPacket, packetLen, writeLen,
-            overlapped);
+        return WinDivertIoControlEx(handle, IOCTL_WINDIVERT_SEND, &ioctl,
+            (PVOID)pPacket, packetLen, writeLen, overlapped);
     }
 }
 
@@ -572,8 +657,11 @@ extern BOOL WinDivertSendEx(HANDLE handle, const VOID *pPacket, UINT packetLen,
  */
 extern BOOL WinDivertShutdown(HANDLE handle, WINDIVERT_SHUTDOWN how)
 {
-    return WinDivertIoControl(handle, IOCTL_WINDIVERT_SHUTDOWN,
-            (UINT64)how, 0, NULL, 0, NULL);
+    WINDIVERT_IOCTL ioctl;
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.shutdown.how = (UINT32)how;
+    return WinDivertIoControl(handle, IOCTL_WINDIVERT_SHUTDOWN, &ioctl, NULL,
+        0, NULL);
 }
 
 /*
@@ -590,38 +678,12 @@ extern BOOL WinDivertClose(HANDLE handle)
 extern BOOL WinDivertSetParam(HANDLE handle, WINDIVERT_PARAM param,
     UINT64 value)
 {
-    switch ((int)param)
-    {
-        case WINDIVERT_PARAM_QUEUE_LEN:
-            if (value < WINDIVERT_PARAM_QUEUE_LEN_MIN ||
-                value > WINDIVERT_PARAM_QUEUE_LEN_MAX)
-            {
-                SetLastError(ERROR_INVALID_PARAMETER);
-                return FALSE;
-            }
-            break;
-        case WINDIVERT_PARAM_QUEUE_TIME:
-            if (value < WINDIVERT_PARAM_QUEUE_TIME_MIN ||
-                value > WINDIVERT_PARAM_QUEUE_TIME_MAX)
-            {
-                SetLastError(ERROR_INVALID_PARAMETER);
-                return FALSE;
-            }
-            break;
-        case WINDIVERT_PARAM_QUEUE_SIZE:
-            if (value < WINDIVERT_PARAM_QUEUE_SIZE_MIN ||
-                value > WINDIVERT_PARAM_QUEUE_SIZE_MAX)
-            {
-                SetLastError(ERROR_INVALID_PARAMETER);
-                return FALSE;
-            }
-            break;
-        default:
-            SetLastError(ERROR_INVALID_PARAMETER);
-            return FALSE;
-    }
-    return WinDivertIoControl(handle, IOCTL_WINDIVERT_SET_PARAM, (UINT8)param,
-        value, NULL, 0, NULL);
+    WINDIVERT_IOCTL ioctl;
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.set_param.param = (UINT32)param;
+    ioctl.set_param.val   = value;
+    return WinDivertIoControl(handle, IOCTL_WINDIVERT_SET_PARAM, &ioctl, NULL,
+        0, NULL);
 }
 
 /*
@@ -630,22 +692,22 @@ extern BOOL WinDivertSetParam(HANDLE handle, WINDIVERT_PARAM param,
 extern BOOL WinDivertGetParam(HANDLE handle, WINDIVERT_PARAM param,
     UINT64 *pValue)
 {
-    switch ((int)param)
-    {
-        case WINDIVERT_PARAM_QUEUE_LEN: case WINDIVERT_PARAM_QUEUE_TIME:
-            break;
-        default:
-            SetLastError(ERROR_INVALID_PARAMETER);
-            return FALSE;
-    }
-    return WinDivertIoControl(handle, IOCTL_WINDIVERT_GET_PARAM, (UINT8)param,
-        0, pValue, sizeof(UINT64), NULL);
+    WINDIVERT_IOCTL ioctl;
+    memset(&ioctl, 0, sizeof(ioctl));
+    ioctl.get_param.param = (UINT32)param;
+    return WinDivertIoControl(handle, IOCTL_WINDIVERT_GET_PARAM, &ioctl,
+        pValue, sizeof(UINT64), NULL);
 }
 
 /*****************************************************************************/
 /* REPLACEMENTS                                                              */
 /*****************************************************************************/
 
+static BOOLEAN WinDivertIsDigit(char c)
+{
+    return (c >= '0' && c <= '9');
+}
+
 static BOOLEAN WinDivertIsXDigit(char c)
 {
     return (c >= '0' && c <= '9') ||
@@ -725,66 +787,156 @@ static int WinDivertStrCmp(const char *s, const char *t)
     }
 }
 
-static BOOLEAN WinDivertAToI(const char *str, char **endptr, UINT32 *intptr)
+static BOOLEAN WinDivertMul128(UINT32 *n, UINT32 m)
+{
+    UINT64 n64 = (UINT64)n[0] * (UINT64)m;
+    n[0] = (UINT32)n64;
+    n64 = (UINT64)n[1] * (UINT64)m + (n64 >> 32);
+    n[1] = (UINT32)n64;
+    n64 = (UINT64)n[2] * (UINT64)m + (n64 >> 32);
+    n[2] = (UINT32)n64;
+    n64 = (UINT64)n[3] * (UINT64)m + (n64 >> 32);
+    n[3] = (UINT32)n64;
+    return ((n64 >> 32) == 0);
+}
+
+static BOOLEAN WinDivertAdd128(UINT32 *n, UINT32 a)
+{
+    UINT64 n64 = (UINT64)n[0] + (UINT64)a;
+    n[0] = (UINT32)n64;
+    n64 = (UINT64)n[1] + (n64 >> 32);
+    n[1] = (UINT32)n64;
+    n64 = (UINT64)n[2] + (n64 >> 32);
+    n[2] = (UINT32)n64;
+    n64 = (UINT64)n[3] + (n64 >> 32);
+    n[3] = (UINT32)n64;
+    return ((n64 >> 32) == 0);
+}
+
+static BOOLEAN WinDivertAToI(const char *str, char **endptr, UINT32 *intptr,
+    UINT size)
 {
     size_t i = 0;
-    UINT32 num = 0, num0;
-    if (str[i] == '\0')
+    UINT32 n[4] = {0};
+    BOOLEAN result = TRUE;
+    for (; str[i] && WinDivertIsDigit(str[i]); i++)
     {
-        return FALSE;
-    }
-    for (; str[i] && isdigit(str[i]); i++)
-    {
-        num0 = num;
-        num *= 10;
-        num += (UINT32)(str[i] - '0');
-        if (num0 > num)
+        if (!WinDivertMul128(n, 10) || !WinDivertAdd128(n, str[i] - '0'))
         {
             return FALSE;
         }
     }
+    if (i == 0)
+    {
+        return FALSE;
+    }
     if (endptr != NULL)
     {
         *endptr = (char *)str + i;
     }
-    *intptr = num;
-    return TRUE;
+    for (i = 0; i < size; i++)
+    {
+        intptr[i] = n[i];
+    }
+    for (; result && i < size && i < 4; i++)
+    {
+        result = result && (n[i] == 0);
+    }
+    return result;
 }
 
-static BOOLEAN WinDivertAToX(const char *str, char **endptr, UINT32 *intptr)
+static BOOLEAN WinDivertAToX(const char *str, char **endptr, UINT32 *intptr,
+    UINT size, BOOL prefix)
 {
     size_t i = 0;
-    UINT32 num = 0, num0;
-    if (str[i] == '\0')
+    UINT32 n[4] = {0}, dig;
+    BOOLEAN result = TRUE;
+    if (prefix)
     {
-        return FALSE;
-    }
-    if (str[i] == '0' && str[i+1] == 'x')
-    {
-        i += 2;
-    }
-    for (; str[i] && WinDivertIsXDigit(str[i]); i++)
-    {
-        num0 = num;
-        num *= 16;
-        if (isdigit(str[i]))
+        if (str[i] == '0' && str[i+1] == 'x')
         {
-            num += (UINT32)(str[i] - '0');
+            i += 2;
         }
         else
         {
-            num += (UINT32)(WinDivertToLower(str[i]) - 'a') + 0x0A;
+            return FALSE;
         }
-        if (num0 > num)
+    }
+    for (; str[i] && WinDivertIsXDigit(str[i]); i++)
+    {
+        if (WinDivertIsDigit(str[i]))
+        {
+            dig = (UINT32)(str[i] - '0');
+        }
+        else
+        {
+            dig = (UINT32)(WinDivertToLower(str[i]) - 'a') + 0x0A;
+        }
+        if (!WinDivertMul128(n, 16) || !WinDivertAdd128(n, dig))
         {
             return FALSE;
         }
     }
+    if (i == 0)
+    {
+        return FALSE;
+    }
     if (endptr != NULL)
     {
         *endptr = (char *)str + i;
     }
-    *intptr = num;
-    return TRUE;
+    for (i = 0; i < size; i++)
+    {
+        intptr[i] = n[i];
+    }
+    for (; result && i < size && i < 4; i++)
+    {
+        result = result && (n[i] == 0);
+    }
+    return result;
+}
+
+/*
+ * Divide by 10 and return the remainder.
+ */
+#define WINDIVERT_BIG_MUL_ROUND(a, c, r, i)                                 \
+    do {                                                                    \
+        UINT64 t = WINDIVERT_MUL64((UINT64)(a), (UINT64)(c));               \
+        UINT k;                                                             \
+        for (k = (i); k < 9 && t != 0; k++)                                 \
+        {                                                                   \
+            UINT64 s = (UINT64)(r)[k] + (t & 0xFFFFFFFF);                   \
+            (r)[k] = (UINT32)s;                                             \
+            t = (t >> 32) + (s >> 32);                                      \
+        }                                                                   \
+    } while (FALSE)
+static UINT32 WinDivertDivTen128(UINT32 *a)
+{
+    const UINT32 c[5] =
+    {
+        0x9999999A, 0x99999999, 0x99999999, 0x99999999, 0x19999999
+    };
+    UINT32 r[9] = {0}, m[6] = {0};
+    UINT i, j;
+
+    for (i = 0; i < 4; i++)
+    {
+        for (j = 0; j < 5; j++)
+        {
+            WINDIVERT_BIG_MUL_ROUND(a[i], c[j], r, i+j);
+        }
+    }
+
+    a[0] = r[5];
+    a[1] = r[6];
+    a[2] = r[7];
+    a[3] = r[8];
+    
+    for (i = 0; i < 5; i++)
+    {
+        WINDIVERT_BIG_MUL_ROUND(r[i], 10, m, i);
+    }
+    
+    return m[5];
 }
 

dll/windivert.def

@@ -1,6 +1,5 @@
 LIBRARY WinDivert
 EXPORTS
-    WinDivertDllEntry
     WinDivertOpen
     WinDivertRecv
     WinDivertRecvEx
@@ -11,6 +10,7 @@ EXPORTS
     WinDivertSetParam
     WinDivertGetParam
     WinDivertHelperCalcChecksums
+    WinDivertHelperDecrementTTL
     WinDivertHelperHashPacket
     WinDivertHelperParsePacket
     WinDivertHelperParseIPv4Address
@@ -26,5 +26,7 @@ EXPORTS
     WinDivertHelperHtonl
     WinDivertHelperNtohll
     WinDivertHelperHtonll
+    WinDivertHelperNtohIPv6Address
+    WinDivertHelperHtonIPv6Address
     WinDivertHelperNtohIpv6Address
     WinDivertHelperHtonIpv6Address

dll/windivert.vcxproj

@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    windivert.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="windivert.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <IntrinsicFunctions>true</IntrinsicFunctions>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <BufferSecurityCheck>false</BufferSecurityCheck>
+   <AdditionalIncludeDirectories>..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>WinDivert</RootNamespace>
+  <ProjectName>WinDivert</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <UseDebugLibraries>true</UseDebugLibraries>
+  <ConfigurationType>DynamicLibrary</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <ClCompile>
+   <WppEnabled>false</WppEnabled>
+   <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">WIN32;NDEBUG;_WINDOWS;_USRDLL;DLL_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+   <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">WIN32;NDEBUG;_WINDOWS;_USRDLL;DLL_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+  </ClCompile>
+  <Link>
+   <EntryPointSymbol>WinDivertDllEntry</EntryPointSymbol>
+   <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
+   <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
+   <ModuleDefinitionFile>windivert.def</ModuleDefinitionFile>
+   <ImportLibrary>WinDivert.lib</ImportLibrary>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

dll/windivert_hash.c

@@ -1,6 +1,6 @@
 /*
  * windivert_hash.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -31,33 +31,33 @@
  * with this program; if not, write to the Free Software Foundation, Inc., 51
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  *
- *  xxHash - Fast Hash algorithm
- *  Copyright (C) 2012-2016, Yann Collet
+ * xxHash - Fast Hash algorithm
+ * Copyright (C) 2012-2016, Yann Collet
  *
- *  BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
  *
- *  Redistribution and use in source and binary forms, with or without
- *  modification, are permitted provided that the following conditions are
- *  met:
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
  *
- *  * Redistributions of source code must retain the above copyright
- *  notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above
- *  copyright notice, this list of conditions and the following disclaimer
- *  in the documentation and/or other materials provided with the
- *  distribution.
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
  *
- *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
 /*
@@ -68,7 +68,7 @@
  *   only ever a single round.  As such, the algorithm has been specialized.
  */
 
-#define WINDIVERT_ROTL(x, r)    (((x) << (r)) | ((x) >> (64 - (r))))
+#define WINDIVERT_ROTL64(x, r)  (((x) << (r)) | ((x) >> (64 - (r))))
 
 static const UINT64 WINDIVERT_PRIME64_1 = 11400714785074694791ull;
 static const UINT64 WINDIVERT_PRIME64_2 = 14029467366897019727ull;
@@ -77,9 +77,9 @@ static const UINT64 WINDIVERT_PRIME64_4 = 9650029242287828579ull;
 
 static UINT64 WinDivertXXH64Round(UINT64 acc, UINT64 input)
 {
-    acc += input * WINDIVERT_PRIME64_2;
-    acc  = WINDIVERT_ROTL(acc, 31);
-    acc *= WINDIVERT_PRIME64_1;
+    acc += WINDIVERT_MUL64(input, WINDIVERT_PRIME64_2);
+    acc  = WINDIVERT_ROTL64(acc, 31);
+    acc  = WINDIVERT_MUL64(acc, WINDIVERT_PRIME64_1);
     return acc;
 }
 
@@ -87,16 +87,16 @@ static UINT64 WinDivertXXH64MergeRound(UINT64 acc, UINT64 val)
 {
     val  = WinDivertXXH64Round(0, val);
     acc ^= val;
-    acc  = acc * WINDIVERT_PRIME64_1 + WINDIVERT_PRIME64_4;
+    acc  = WINDIVERT_MUL64(acc, WINDIVERT_PRIME64_1) + WINDIVERT_PRIME64_4;
     return acc;
 }
 
 static UINT64 WinDivertXXH64Avalanche(UINT64 h64)
 {
     h64 ^= h64 >> 33;
-    h64 *= WINDIVERT_PRIME64_2;
+    h64  = WINDIVERT_MUL64(h64, WINDIVERT_PRIME64_2);
     h64 ^= h64 >> 29;
-    h64 *= WINDIVERT_PRIME64_3;
+    h64  = WINDIVERT_MUL64(h64, WINDIVERT_PRIME64_3);
     h64 ^= h64 >> 32;
     return h64;
 }
@@ -187,8 +187,8 @@ static UINT64 WinDivertHashPacket(UINT64 seed, PWINDIVERT_IPHDR ip_header,
     v2 = WinDivertXXH64Round(v[1], v2);
     v3 = WinDivertXXH64Round(v[2], v3);
     v4 = WinDivertXXH64Round(v[3], v4);
-    h64 = WINDIVERT_ROTL(v1, 1) + WINDIVERT_ROTL(v2, 7) +
-          WINDIVERT_ROTL(v3, 12) + WINDIVERT_ROTL(v4, 18);
+    h64 = WINDIVERT_ROTL64(v1, 1) + WINDIVERT_ROTL64(v2, 7) +
+          WINDIVERT_ROTL64(v3, 12) + WINDIVERT_ROTL64(v4, 18);
     h64 = WinDivertXXH64MergeRound(h64, v1);
     h64 = WinDivertXXH64MergeRound(h64, v2);
     h64 = WinDivertXXH64MergeRound(h64, v3);

dll/windivert_shared.c

@@ -1,6 +1,6 @@
 /*
  * windivert_shared.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -33,7 +33,7 @@
  */
 
 #define WINDIVERT_OBJECT_MAXLEN                                         \
-    (8 + 4 + 2 + WINDIVERT_FILTER_MAXLEN * (1 + 2 + 2 + 4*7 + 2 + 2) + 1)
+    (8 + 4 + 2 + WINDIVERT_FILTER_MAXLEN * (1 + 1 + 2 + 2 + 4*7 + 3 + 3) + 1)
 
 #define MAX(a, b)                               ((a) > (b)? (a): (b))
 
@@ -41,10 +41,10 @@
  * Definitions to remove (some) external dependencies:
  */
 #define BYTESWAP16(x)                   \
-    ((((x) >> 8) & 0x00FF) | (((x) << 8) & 0xFF00))
+    ((((x) >> 8) & 0x00FFu) | (((x) << 8) & 0xFF00u))
 #define BYTESWAP32(x)                   \
-    ((((x) >> 24) & 0x000000FF) | (((x) >> 8) & 0x0000FF00) | \
-     (((x) << 8) & 0x00FF0000) | (((x) << 24) & 0xFF000000))
+    ((((x) >> 24) & 0x000000FFu) | (((x) >> 8) & 0x0000FF00u) | \
+     (((x) << 8) & 0x00FF0000u) | (((x) << 24) & 0xFF000000u))
 #define BYTESWAP64(x)                   \
     ((((x) >> 56) & 0x00000000000000FFull) | \
      (((x) >> 40) & 0x000000000000FF00ull) | \
@@ -59,6 +59,20 @@
 #define ntohl(x)                        BYTESWAP32(x)
 #define htonl(x)                        BYTESWAP32(x)
 
+#if defined(WIN32) && defined(_MSC_VER)
+#pragma intrinsic(__emulu)
+static UINT64 WinDivertMul64(UINT64 a, UINT64 b)
+{
+    UINT64 r = __emulu((UINT32)a, (UINT32)b);
+    r += __emulu((UINT32)(a >> 32), (UINT32)b) << 32;
+    r += __emulu((UINT32)a, (UINT32)(b >> 32)) << 32;
+    return r;
+}
+#define WINDIVERT_MUL64(a, b)   WinDivertMul64(a, b)
+#else       /* WIN32 */
+#define WINDIVERT_MUL64(a, b)   ((a) * (b))
+#endif      /* WIN32 */
+
 #include "windivert_hash.c"
 
 /*
@@ -143,35 +157,65 @@ static void WinDivertPutNul(PWINDIVERT_STREAM stream)
     }
 }
 
+/*
+ * Encode a digit.
+ */
+static char WinDivertEncodeDigit(UINT8 dig, BOOL final)
+{
+    static const char windivert_digits[64+1] =
+        "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+=";
+    return windivert_digits[(dig & 0x1F) + (final? 32: 0)];
+}
+
 /*
  * Serialize a number.
  */
 static void WinDivertSerializeNumber(PWINDIVERT_STREAM stream, UINT32 val)
 {
-    UINT64 mask = 0x00000007C0000000ull;
+    UINT32 mask = 0xC0000000;
     UINT dig = 6;
-    UINT64 val64 = (UINT64)val;
+    UINT8 digit;
     BOOL final;
 
-    while ((mask & val64) == 0 && dig != 0)
+    while ((mask & val) == 0 && dig != 0)
     {
-        mask >>= 5;
+        mask = (dig == 6? 0x3E000000: mask >> 5);
         dig--;
     }
     while (TRUE)
     {
         final = (dig == 0);
-        WinDivertPutChar(stream, '!' + (char)((mask & val64) >> (5 * dig)) +
-            (final? 32: 0));
+        digit = (UINT8)((mask & val) >> (5 * dig));
+        WinDivertPutChar(stream, WinDivertEncodeDigit(digit, final));
         if (final)
         {
             break;
         }
-        mask >>= 5;
+        mask = (dig == 6? 0x3E000000: mask >> 5);
         dig--;
     }
 }
 
+/*
+ * Serialize a label.
+ */
+static void WinDivertSerializeLabel(PWINDIVERT_STREAM stream, UINT16 label)
+{
+    switch (label)
+    {
+        case WINDIVERT_FILTER_RESULT_ACCEPT:
+            WinDivertPutChar(stream, 'A');
+            break;
+        case WINDIVERT_FILTER_RESULT_REJECT:
+            WinDivertPutChar(stream, 'X');
+            break;
+        default:
+            WinDivertPutChar(stream, 'L');
+            WinDivertSerializeNumber(stream, label);
+            break;
+    }
+}
+
 /*
  * Serialize a test.
  */
@@ -184,6 +228,7 @@ static void WinDivertSerializeTest(PWINDIVERT_STREAM stream,
     WinDivertPutChar(stream, '_');
     WinDivertSerializeNumber(stream, filter->field);
     WinDivertSerializeNumber(stream, filter->test);
+    WinDivertSerializeNumber(stream, filter->neg);
     WinDivertSerializeNumber(stream, filter->arg[0]);
     switch (filter->field)
     {
@@ -196,6 +241,11 @@ static void WinDivertSerializeTest(PWINDIVERT_STREAM stream,
                 WinDivertSerializeNumber(stream, filter->arg[i]);
             }
             break;
+        case WINDIVERT_FILTER_FIELD_ENDPOINTID:
+        case WINDIVERT_FILTER_FIELD_PARENTENDPOINTID:
+        case WINDIVERT_FILTER_FIELD_TIMESTAMP:
+            WinDivertSerializeNumber(stream, filter->arg[1]);
+            break;
         case WINDIVERT_FILTER_FIELD_PACKET:
         case WINDIVERT_FILTER_FIELD_PACKET16:
         case WINDIVERT_FILTER_FIELD_PACKET32:
@@ -212,8 +262,8 @@ static void WinDivertSerializeTest(PWINDIVERT_STREAM stream,
         default:
             break;
     }
-    WinDivertSerializeNumber(stream, (UINT8)(filter->success + 2));
-    WinDivertSerializeNumber(stream, (UINT8)(filter->failure + 2));
+    WinDivertSerializeLabel(stream, (UINT16)filter->success);
+    WinDivertSerializeLabel(stream, (UINT16)filter->failure);
 }
 
 /*
@@ -283,11 +333,11 @@ static UINT8 WinDivertSkipExtHeaders(UINT8 proto, UINT8 **header, UINT *len)
 /*
  * Parse IPv4/IPv6/ICMP/ICMPv6/TCP/UDP headers from a raw packet.
  */
-static BOOL WinDivertParsePacket(PVOID pPacket, UINT packetLen,
-    PWINDIVERT_IPHDR *ppIpHdr, PWINDIVERT_IPV6HDR *ppIpv6Hdr,
+extern BOOL WinDivertHelperParsePacket(const VOID *pPacket, UINT packetLen,
+    PWINDIVERT_IPHDR *ppIpHdr, PWINDIVERT_IPV6HDR *ppIpv6Hdr, UINT8 *pProtocol,
     PWINDIVERT_ICMPHDR *ppIcmpHdr, PWINDIVERT_ICMPV6HDR *ppIcmpv6Hdr,
-    PWINDIVERT_TCPHDR *ppTcpHdr, PWINDIVERT_UDPHDR *ppUdpHdr, UINT8 *pProto,
-    PVOID *ppData, UINT *pDataLen)
+    PWINDIVERT_TCPHDR *ppTcpHdr, PWINDIVERT_UDPHDR *ppUdpHdr, PVOID *ppData,
+    UINT *pDataLen, PVOID *ppNext, UINT *pNextLen)
 {
     PWINDIVERT_IPHDR ip_header = NULL;
     PWINDIVERT_IPV6HDR ipv6_header = NULL;
@@ -296,16 +346,16 @@ static BOOL WinDivertParsePacket(PVOID pPacket, UINT packetLen,
     PWINDIVERT_TCPHDR tcp_header = NULL;
     PWINDIVERT_UDPHDR udp_header = NULL;
     UINT16 header_len;
-    UINT8 trans_proto = 0;
-    PVOID data = NULL;
-    UINT data_len = 0;
-    BOOL success;
+    UINT8 protocol = 0;
+    PVOID data = NULL, next = NULL;
+    UINT data_len = 0, next_len = 0, packet_len;
+    BOOL success = FALSE;
 
-    if (pPacket == NULL || packetLen < sizeof(UINT8))
+    if (pPacket == NULL || packetLen < sizeof(WINDIVERT_IPHDR))
     {
         goto WinDivertHelperParsePacketExit;
     }
-    data = pPacket;
+    data = (PVOID)pPacket;
     data_len = packetLen;
 
     ip_header = (PWINDIVERT_IPHDR)data;
@@ -313,39 +363,57 @@ static BOOL WinDivertParsePacket(PVOID pPacket, UINT packetLen,
     {
         case 4:
             if (data_len < sizeof(WINDIVERT_IPHDR) ||
-                ip_header->HdrLength < 5 ||
-                data_len < ip_header->HdrLength*sizeof(UINT32) ||
-                ntohs(ip_header->Length) != data_len)
+                ip_header->HdrLength < 5) 
             {
                 ip_header = NULL;
                 goto WinDivertHelperParsePacketExit;
             }
-            trans_proto = ip_header->Protocol;
+            packet_len = (UINT)ntohs(ip_header->Length);
             header_len = ip_header->HdrLength*sizeof(UINT32);
+            protocol = ip_header->Protocol;
+            if (data_len < header_len || data_len < packet_len ||
+                packet_len < header_len)
+            {
+                ip_header = NULL;
+                goto WinDivertHelperParsePacketExit;
+            }
+            else if (packet_len < data_len)
+            {
+                next = (PVOID)((UINT8 *)data + packet_len);
+                next_len = data_len - packet_len;
+            }
             data = (PVOID)((UINT8 *)data + header_len);
-            data_len -= header_len;
+            data_len = packet_len - header_len;
             break;
         case 6:
             ip_header = NULL;
             ipv6_header = (PWINDIVERT_IPV6HDR)data;
             if (data_len < sizeof(WINDIVERT_IPV6HDR) ||
-                ntohs(ipv6_header->Length) !=
-                    data_len - sizeof(WINDIVERT_IPV6HDR))
+                data_len < ntohs(ipv6_header->Length) +
+                    sizeof(WINDIVERT_IPV6HDR))
             {
                 ipv6_header = NULL;
                 goto WinDivertHelperParsePacketExit;
             }
-            trans_proto = ipv6_header->NextHdr;
+            protocol = ipv6_header->NextHdr;
+            packet_len = ntohs(ipv6_header->Length) + sizeof(WINDIVERT_IPV6HDR);
+            if (packet_len < data_len)
+            {
+                next = (PVOID)((UINT8 *)data + packet_len);
+                next_len = data_len - packet_len;
+            }
             data = (PVOID)((UINT8 *)data + sizeof(WINDIVERT_IPV6HDR));
-            data_len -= sizeof(WINDIVERT_IPV6HDR);
-            trans_proto = WinDivertSkipExtHeaders(trans_proto, (UINT8 **)&data,
+            data_len = packet_len - sizeof(WINDIVERT_IPV6HDR);
+            protocol = WinDivertSkipExtHeaders(protocol, (UINT8 **)&data,
                 &data_len);
             break;
         default:
             ip_header = NULL;
             goto WinDivertHelperParsePacketExit;
     }
-    switch (trans_proto)
+    data = (data_len == 0? NULL: data);
+    success = TRUE;
+    switch (protocol)
     {
         case IPPROTO_TCP:
             tcp_header = (PWINDIVERT_TCPHDR)data;
@@ -403,58 +471,64 @@ static BOOL WinDivertParsePacket(PVOID pPacket, UINT packetLen,
     }
 
 WinDivertHelperParsePacketExit:
-    success = TRUE;
+    if (pProtocol != NULL)
+    {
+        *pProtocol = protocol;
+    }
     if (ppIpHdr != NULL)
     {
         *ppIpHdr = ip_header;
-        success = success && (ip_header != NULL);
     }
     if (ppIpv6Hdr != NULL)
     {
         *ppIpv6Hdr = ipv6_header;
-        success = success && (ipv6_header != NULL);
     }
     if (ppIcmpHdr != NULL)
     {
         *ppIcmpHdr = icmp_header;
-        success = success && (icmp_header != NULL);
     }
     if (ppIcmpv6Hdr != NULL)
     {
         *ppIcmpv6Hdr = icmpv6_header;
-        success = success && (icmpv6_header != NULL);
     }
     if (ppTcpHdr != NULL)
     {
         *ppTcpHdr = tcp_header;
-        success = success && (tcp_header != NULL);
     }
     if (ppUdpHdr != NULL)
     {
         *ppUdpHdr = udp_header;
-        success = success && (udp_header != NULL);
-    }
-    if (pProto != NULL)
-    {
-        *pProto = trans_proto;
     }
     if (ppData != NULL)
     {
         *ppData = data;
-        success = success && (data != NULL);
     }
     if (pDataLen != NULL)
     {
         *pDataLen = data_len;
     }
+    if (ppNext != NULL)
+    {
+        *ppNext = next;
+    }
+    if (pNextLen != NULL)
+    {
+        *pNextLen = next_len;
+    }
+
+    if (ppNext == NULL && pNextLen == NULL && next != NULL)
+    {
+        success = FALSE;
+    }
+
     return success;
 }
 
 /*
  * Calculate IPv4/IPv6/ICMP/ICMPv6/TCP/UDP checksums.
  */
-extern UINT WinDivertHelperCalcChecksums(PVOID pPacket, UINT packetLen,
-    const WINDIVERT_ADDRESS *pAddr, UINT64 flags)
+extern BOOL WinDivertHelperCalcChecksums(PVOID pPacket, UINT packetLen,
+    WINDIVERT_ADDRESS *pAddr, UINT64 flags)
 {
     UINT8 pseudo_header[
         MAX(sizeof(WINDIVERT_PSEUDOHDR), sizeof(WINDIVERT_PSEUDOV6HDR))];
@@ -466,41 +540,42 @@ extern UINT WinDivertHelperCalcChecksums(PVOID pPacket, UINT packetLen,
     PWINDIVERT_TCPHDR tcp_header;
     PWINDIVERT_UDPHDR udp_header;
     UINT payload_len, checksum_len;
-    UINT count = 0;
 
-    WinDivertParsePacket(pPacket, packetLen, &ip_header, &ipv6_header,
-        &icmp_header, &icmpv6_header, &tcp_header, &udp_header, NULL, NULL,
-        &payload_len);
+    if (!WinDivertHelperParsePacket(pPacket, packetLen, &ip_header,
+            &ipv6_header, NULL, &icmp_header, &icmpv6_header, &tcp_header,
+            &udp_header, NULL, &payload_len, NULL, NULL))
+    {
+        return FALSE;
+    }
 
     if (ip_header != NULL && !(flags & WINDIVERT_HELPER_NO_IP_CHECKSUM))
     {
         ip_header->Checksum = 0;
-        if (pAddr == NULL || pAddr->PseudoIPChecksum == 0)
+        ip_header->Checksum = WinDivertCalcChecksum(NULL, 0, ip_header,
+            ip_header->HdrLength*sizeof(UINT32));
+        if (pAddr != NULL)
         {
-            ip_header->Checksum = WinDivertCalcChecksum(NULL, 0,
-                ip_header, ip_header->HdrLength*sizeof(UINT32));
+            pAddr->IPChecksum = 1;
         }
-        count++;
     }
-
+    
     if (icmp_header != NULL)
     {
         if ((flags & WINDIVERT_HELPER_NO_ICMP_CHECKSUM) != 0)
         {
-            return count;
+            return TRUE;
         }
         icmp_header->Checksum = 0;
         icmp_header->Checksum = WinDivertCalcChecksum(NULL, 0,
             icmp_header, payload_len + sizeof(WINDIVERT_ICMPHDR));
-        count++;
-        return count;
+        return TRUE;
     }
-
+    
     if (icmpv6_header != NULL)
     {
         if ((flags & WINDIVERT_HELPER_NO_ICMPV6_CHECKSUM) != 0)
         {
-            return count;
+            return TRUE;
         }
         checksum_len = payload_len + sizeof(WINDIVERT_ICMPV6HDR);
         pseudo_header_len = WinDivertInitPseudoHeader(NULL, ipv6_header, 
@@ -508,63 +583,52 @@ extern UINT WinDivertHelperCalcChecksums(PVOID pPacket, UINT packetLen,
         icmpv6_header->Checksum = 0;
         icmpv6_header->Checksum = WinDivertCalcChecksum(pseudo_header,
             pseudo_header_len, icmpv6_header, checksum_len);
-        count++;
-        return count;
+        return TRUE;
     }
-
+    
     if (tcp_header != NULL)
     {
         if ((flags & WINDIVERT_HELPER_NO_TCP_CHECKSUM) != 0)
         {
-            return count;
+            return TRUE;
         }
-        if (pAddr == NULL || pAddr->PseudoTCPChecksum == 0)
+        checksum_len = payload_len + tcp_header->HdrLength*sizeof(UINT32);
+        pseudo_header_len = WinDivertInitPseudoHeader(ip_header,
+            ipv6_header, IPPROTO_TCP, checksum_len, pseudo_header);
+        tcp_header->Checksum = 0;
+        tcp_header->Checksum = WinDivertCalcChecksum(
+            pseudo_header, pseudo_header_len, tcp_header, checksum_len);
+        if (pAddr != NULL)
         {
-            // Full TCP checksum
-            checksum_len = payload_len + tcp_header->HdrLength*sizeof(UINT32);
-            pseudo_header_len = WinDivertInitPseudoHeader(ip_header,
-                ipv6_header, IPPROTO_TCP, checksum_len, pseudo_header);
-            tcp_header->Checksum = 0;
-            tcp_header->Checksum = WinDivertCalcChecksum(
-                pseudo_header, pseudo_header_len, tcp_header, checksum_len);
+            pAddr->TCPChecksum = 1;
         }
-        else if (pAddr->Outbound)
-        {
-            // Pseudo TCP checksum
-            tcp_header->Checksum = 0;
-        }
-        count++;
-        return count;
+        return TRUE;
     }
-
+    
     if (udp_header != NULL)
     {
         if ((flags & WINDIVERT_HELPER_NO_UDP_CHECKSUM) != 0)
         {
-            return count;
+            return TRUE;
         }
-        if (pAddr == NULL || pAddr->PseudoUDPChecksum == 0)
+        // Full UDP checksum
+        checksum_len = payload_len + sizeof(WINDIVERT_UDPHDR);
+        pseudo_header_len = WinDivertInitPseudoHeader(ip_header,
+            ipv6_header, IPPROTO_UDP, checksum_len, pseudo_header);
+        udp_header->Checksum = 0;
+        udp_header->Checksum = WinDivertCalcChecksum(
+            pseudo_header, pseudo_header_len, udp_header, checksum_len);
+        if (udp_header->Checksum == 0)
         {
-            // Full UDP checksum
-            checksum_len = payload_len + sizeof(WINDIVERT_UDPHDR);
-            pseudo_header_len = WinDivertInitPseudoHeader(ip_header,
-                ipv6_header, IPPROTO_UDP, checksum_len, pseudo_header);
-            udp_header->Checksum = 0;
-            udp_header->Checksum = WinDivertCalcChecksum(
-                pseudo_header, pseudo_header_len, udp_header, checksum_len);
-            if (udp_header->Checksum == 0)
-            {
-                udp_header->Checksum = 0xFFFF;
-            }
+            udp_header->Checksum = 0xFFFF;
         }
-        else if (pAddr->Outbound)
+        if (pAddr != NULL)
         {
-            // Pseudo UDP checksum
-            udp_header->Checksum = 0;
+            pAddr->UDPChecksum = 1;
         }
-        count++;
     }
-    return count;
+
+    return TRUE;
 }
 
 /*
@@ -637,3 +701,55 @@ static UINT16 WinDivertCalcChecksum(PVOID pseudo_header,
     return (UINT16)sum;
 }
 
+/*
+ * Decrement the TTL.
+ */
+extern BOOL WinDivertHelperDecrementTTL(VOID *packet, UINT packetLen)
+{
+    PWINDIVERT_IPHDR ip_header;
+    PWINDIVERT_IPV6HDR ipv6_header;
+
+    if (packet == NULL || packetLen < sizeof(WINDIVERT_IPHDR))
+    {
+        return FALSE;
+    }
+
+    ip_header = (PWINDIVERT_IPHDR)packet;
+    switch (ip_header->Version)
+    {
+		case 4:
+	        if (ip_header->TTL <= 1)
+	        {
+	            return FALSE;
+	        }
+	        ip_header->TTL--;
+	
+	        // Incremental checksum update:
+	        if (ip_header->Checksum >= 0xFFFE)
+	        {
+	            ip_header->Checksum -= 0xFFFE;
+	        }
+	        else
+	        {
+	            ip_header->Checksum += 1;
+	        }
+            return TRUE;
+
+        case 6:
+            if (packetLen < sizeof(WINDIVERT_IPV6HDR))
+            {
+                return FALSE;
+            }
+            ipv6_header = (PWINDIVERT_IPV6HDR)packet;
+            if (ipv6_header->HopLimit <= 1)
+            {
+                return FALSE;
+            }
+            ipv6_header->HopLimit--;
+            return TRUE;
+
+        default:
+            return FALSE;
+    }
+}
+

examples/flowtrack/flowtrack.c

@@ -1,6 +1,6 @@
 /*
  * flowtrack.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -227,7 +227,7 @@ int __cdecl main(int argc, char **argv)
             filter = argv[1];
             break;
         default:
-            fprintf(stderr, "usage: %s [filter]\n");
+            fprintf(stderr, "usage: %s [filter]\n", argv[0]);
             exit(EXIT_FAILURE);
     }
 
@@ -263,7 +263,7 @@ int __cdecl main(int argc, char **argv)
     // Main loop:
     while (TRUE)
     {
-        if (!WinDivertRecv(handle, NULL, 0, &addr, &packet_len))
+        if (!WinDivertRecv(handle, NULL, 0, NULL, &addr))
         {
             fprintf(stderr, "failed to read packet (%d)\n", GetLastError());
             continue;

examples/flowtrack/flowtrack.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    flowtrack.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="flowtrack.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>flowtrack</RootNamespace>
+  <ProjectName>flowtrack</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

examples/netdump/netdump.c

@@ -1,6 +1,6 @@
 /*
  * netdump.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -51,7 +51,7 @@
 #define ntohs(x)            WinDivertHelperNtohs(x)
 #define ntohl(x)            WinDivertHelperNtohl(x)
 
-#define MAXBUF              0xFFFF
+#define MAXBUF              WINDIVERT_MTU_MAX
 #define INET6_ADDRSTRLEN    45
 
 /*
@@ -118,18 +118,27 @@ int __cdecl main(int argc, char **argv)
     }
 
     // Max-out the packet queue:
-    if (!WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_LEN, 8192))
+    if (!WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_LENGTH, 
+            WINDIVERT_PARAM_QUEUE_LENGTH_MAX))
     {
         fprintf(stderr, "error: failed to set packet queue length (%d)\n",
             GetLastError());
         exit(EXIT_FAILURE);
     }
-    if (!WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_TIME, 2048))
+    if (!WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_TIME,
+            WINDIVERT_PARAM_QUEUE_TIME_MAX))
     {
         fprintf(stderr, "error: failed to set packet queue time (%d)\n",
             GetLastError());
         exit(EXIT_FAILURE);
     }
+    if (!WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_SIZE,
+            WINDIVERT_PARAM_QUEUE_SIZE_MAX))
+    {
+        fprintf(stderr, "error: failed to set packet queue size (%d)\n",
+            GetLastError());
+        exit(EXIT_FAILURE);
+    }
 
     // Set up timing:
     QueryPerformanceFrequency(&freq);
@@ -139,7 +148,7 @@ int __cdecl main(int argc, char **argv)
     while (TRUE)
     {
         // Read a matching packet.
-        if (!WinDivertRecv(handle, packet, sizeof(packet), &addr, &packet_len))
+        if (!WinDivertRecv(handle, packet, sizeof(packet), &packet_len, &addr))
         {
             fprintf(stderr, "warning: failed to read packet (%d)\n",
                 GetLastError());
@@ -147,9 +156,9 @@ int __cdecl main(int argc, char **argv)
         }
 
         // Print info about the matching packet.
-        WinDivertHelperParsePacket(packet, packet_len, &ip_header,
-            &ipv6_header, &icmp_header, &icmpv6_header, &tcp_header,
-            &udp_header, NULL, NULL);
+        WinDivertHelperParsePacket(packet, packet_len, &ip_header, &ipv6_header,
+            NULL, &icmp_header, &icmpv6_header, &tcp_header, &udp_header, NULL,
+            NULL, NULL, NULL);
         if (ip_header == NULL && ipv6_header == NULL)
         {
             fprintf(stderr, "warning: junk packet\n");
@@ -188,8 +197,8 @@ int __cdecl main(int argc, char **argv)
         }
         if (ipv6_header != NULL)
         {
-            WinDivertHelperNtohIpv6Address(ipv6_header->SrcAddr, src_addr);
-            WinDivertHelperNtohIpv6Address(ipv6_header->DstAddr, dst_addr);
+            WinDivertHelperNtohIPv6Address(ipv6_header->SrcAddr, src_addr);
+            WinDivertHelperNtohIPv6Address(ipv6_header->DstAddr, dst_addr);
             WinDivertHelperFormatIPv6Address(src_addr, src_str,
                 sizeof(src_str));
             WinDivertHelperFormatIPv6Address(dst_addr, dst_str,

examples/netdump/netdump.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    netdump.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="netdump.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>netdump</RootNamespace>
+  <ProjectName>netdump</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

examples/netfilter/netfilter.c

@@ -1,6 +1,6 @@
 /*
  * netfilter.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -59,7 +59,7 @@
 #define htons(x)            WinDivertHelperHtons(x)
 #define htonl(x)            WinDivertHelperHtonl(x)
 
-#define MAXBUF              0xFFFF
+#define MAXBUF              WINDIVERT_MTU_MAX
 #define INET6_ADDRSTRLEN    45
 #define IPPROTO_ICMPV6      58
 
@@ -193,17 +193,17 @@ int __cdecl main(int argc, char **argv)
     while (TRUE)
     {
         // Read a matching packet.
-        if (!WinDivertRecv(handle, packet, sizeof(packet), &recv_addr,
-                &packet_len))
+        if (!WinDivertRecv(handle, packet, sizeof(packet), &packet_len,
+                &recv_addr))
         {
             fprintf(stderr, "warning: failed to read packet\n");
             continue;
         }
        
         // Print info about the matching packet.
-        WinDivertHelperParsePacket(packet, packet_len, &ip_header,
-            &ipv6_header, &icmp_header, &icmpv6_header, &tcp_header,
-            &udp_header, NULL, &payload_len);
+        WinDivertHelperParsePacket(packet, packet_len, &ip_header, &ipv6_header,
+            NULL, &icmp_header, &icmpv6_header, &tcp_header, &udp_header, NULL,
+            &payload_len, NULL, NULL);
         if (ip_header == NULL && ipv6_header == NULL)
         {
             continue;
@@ -223,8 +223,8 @@ int __cdecl main(int argc, char **argv)
         }
         if (ipv6_header != NULL)
         {
-            WinDivertHelperNtohIpv6Address(ipv6_header->SrcAddr, src_addr);
-            WinDivertHelperNtohIpv6Address(ipv6_header->DstAddr, dst_addr);
+            WinDivertHelperNtohIPv6Address(ipv6_header->SrcAddr, src_addr);
+            WinDivertHelperNtohIPv6Address(ipv6_header->DstAddr, dst_addr);
             WinDivertHelperFormatIPv6Address(src_addr, src_str,
                 sizeof(src_str));
             WinDivertHelperFormatIPv6Address(dst_addr, dst_str,
@@ -292,7 +292,7 @@ int __cdecl main(int argc, char **argv)
                 WinDivertHelperCalcChecksums((PVOID)reset, sizeof(TCPPACKET),
                     &send_addr, 0);
                 if (!WinDivertSend(handle, (PVOID)reset, sizeof(TCPPACKET),
-                        &send_addr, NULL))
+                        NULL, &send_addr))
                 {
                     fprintf(stderr, "warning: failed to send TCP reset (%d)\n",
                         GetLastError());
@@ -319,7 +319,7 @@ int __cdecl main(int argc, char **argv)
                 WinDivertHelperCalcChecksums((PVOID)resetv6,
                     sizeof(TCPV6PACKET), &send_addr, 0);
                 if (!WinDivertSend(handle, (PVOID)resetv6, sizeof(TCPV6PACKET),
-                        &send_addr, NULL))
+                        NULL, &send_addr))
                 {
                     fprintf(stderr, "warning: failed to send TCP (IPV6) "
                         "reset (%d)\n", GetLastError());
@@ -344,8 +344,8 @@ int __cdecl main(int argc, char **argv)
                 send_addr.Outbound = !recv_addr.Outbound;
                 WinDivertHelperCalcChecksums((PVOID)dnr, icmp_length,
                     &send_addr, 0);
-                if (!WinDivertSend(handle, (PVOID)dnr, icmp_length, &send_addr,
-                    NULL))
+                if (!WinDivertSend(handle, (PVOID)dnr, icmp_length, NULL,
+                        &send_addr))
                 {
                     fprintf(stderr, "warning: failed to send ICMP message "
                         "(%d)\n", GetLastError());
@@ -368,7 +368,7 @@ int __cdecl main(int argc, char **argv)
                 WinDivertHelperCalcChecksums((PVOID)dnrv6, icmpv6_length,
                     &send_addr, 0);
                 if (!WinDivertSend(handle, (PVOID)dnrv6, icmpv6_length,
-                        &send_addr, NULL))
+                        NULL, &send_addr))
                 {
                     fprintf(stderr, "warning: failed to send ICMPv6 message "
                         "(%d)\n", GetLastError());

examples/netfilter/netfilter.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    netfilter.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="netfilter.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>netfilter</RootNamespace>
+  <ProjectName>netfilter</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

examples/passthru/passthru.c

@@ -1,6 +1,6 @@
 /*
  * passthru.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -37,7 +37,7 @@
  * This program does nothing except divert packets and re-inject them.  This is
  * useful for performance testing.
  *
- * usage: netdump.exe windivert-filter num-threads
+ * usage: passthru.exe [windivert-filter] [num-threads] [batch-size] [priority]
  */
 
 #include <winsock2.h>
@@ -47,10 +47,13 @@
 
 #include "windivert.h"
 
-#define MAXBUF      400000
-#define MAXBATCH    0xFF
+#define MTU 1500
 
-static int batch = 1;
+typedef struct
+{
+    HANDLE handle;
+    int batch;
+} CONFIG, *PCONFIG;
 
 static DWORD passthru(LPVOID arg);
 
@@ -59,37 +62,53 @@ static DWORD passthru(LPVOID arg);
  */
 int __cdecl main(int argc, char **argv)
 {
-    int num_threads, priority = 0, i;
+    const char *filter = "true";
+    int threads = 1, batch = 1, priority = 0;
+    int i;
     HANDLE handle, thread;
+    CONFIG config;
 
-    if (argc < 3 || argc > 5)
+    if (argc > 5)
     {
-        fprintf(stderr, "usage: %s filter num-threads [batch] [priority]\n",
-            argv[0]);
+        fprintf(stderr, "usage: %s [filter] [num-threads] [batch-size] "
+            "[priority]\n", argv[0]);
         exit(EXIT_FAILURE);
     }
-    num_threads = atoi(argv[2]);
-    if (num_threads < 1 || num_threads > 64)
+    if (argc >= 2)
     {
-        fprintf(stderr, "error: invalid number of threads\n");
-        exit(EXIT_FAILURE);
+        filter = argv[1];
+    }
+    if (argc >= 3)
+    {
+        threads = atoi(argv[2]);
+        if (threads < 1 || threads > 64)
+        {
+            fprintf(stderr, "error: invalid number of threads\n");
+            exit(EXIT_FAILURE);
+        }
     }
     if (argc >= 4)
     {
         batch = atoi(argv[3]);
-    }
-    if (batch <= 0 || batch > MAXBATCH)
-    {
-        fprintf(stderr, "error: invalid batch size\n");
-        exit(EXIT_FAILURE);
+        if (batch <= 0 || batch > WINDIVERT_BATCH_MAX)
+        {
+            fprintf(stderr, "error: invalid batch size\n");
+            exit(EXIT_FAILURE);
+        }
     }
     if (argc >= 5)
     {
         priority = atoi(argv[4]);
+        if (priority < WINDIVERT_PRIORITY_LOWEST ||
+            priority > WINDIVERT_PRIORITY_HIGHEST)
+        {
+            fprintf(stderr, "error: invalid priority value\n");
+            exit(EXIT_FAILURE);
+        }
     }
 
     // Divert traffic matching the filter:
-    handle = WinDivertOpen(argv[1], WINDIVERT_LAYER_NETWORK, (INT16)priority,
+    handle = WinDivertOpen(filter, WINDIVERT_LAYER_NETWORK, (INT16)priority,
         0);
     if (handle == INVALID_HANDLE_VALUE)
     {
@@ -104,20 +123,22 @@ int __cdecl main(int argc, char **argv)
     }
 
     // Start the threads
-    for (i = 1; i < num_threads; i++)
+    config.handle = handle;
+    config.batch = batch;
+    for (i = 1; i < threads; i++)
     {
         thread = CreateThread(NULL, 1, (LPTHREAD_START_ROUTINE)passthru,
-            (LPVOID)handle, 0, NULL);
+            (LPVOID)&config, 0, NULL);
         if (thread == NULL)
         {
-            fprintf(stderr, "error: failed to start passthru thread (%u)\n",
+            fprintf(stderr, "error: failed to start passthru thread (%d)\n",
                 GetLastError());
             exit(EXIT_FAILURE);
         }
     }
 
     // Main thread:
-    passthru((LPVOID)handle);
+    passthru((LPVOID)&config);
 
     return 0;
 }
@@ -125,17 +146,32 @@ int __cdecl main(int argc, char **argv)
 // Passthru thread.
 static DWORD passthru(LPVOID arg)
 {
-    UINT8 packet[MAXBUF];
+    UINT8 *packet;
     UINT packet_len, addr_len;
-    WINDIVERT_ADDRESS addr[MAXBATCH];
-    HANDLE handle = (HANDLE)arg;
+    WINDIVERT_ADDRESS *addr;
+    PCONFIG config = (PCONFIG)arg;
+    HANDLE handle;
+    int batch;
+
+    handle = config->handle;
+    batch = config->batch;
+
+    packet = (UINT8 *)malloc(batch * MTU);
+    addr = (WINDIVERT_ADDRESS *)malloc(batch * sizeof(WINDIVERT_ADDRESS));
+    if (packet == NULL || addr == NULL)
+    {
+        fprintf(stderr, "error: failed to allocate buffer (%d)\n",
+            GetLastError());
+        exit(EXIT_FAILURE);
+    }
 
     // Main loop:
     while (TRUE)
     {
         // Read a matching packet.
-        addr_len = batch * sizeof(WINDIVERT_ADDRESS);
-        if (!WinDivertRecvEx(handle, packet, sizeof(packet), &packet_len, 0,
+        packet_len = batch * MTU;
+        addr_len   = batch * sizeof(WINDIVERT_ADDRESS);
+        if (!WinDivertRecvEx(handle, packet, packet_len, &packet_len, 0,
                 addr, &addr_len, NULL))
         {
             fprintf(stderr, "warning: failed to read packet (%d)\n",

examples/passthru/passthru.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    passthru.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="passthru.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>passthru</RootNamespace>
+  <ProjectName>passthru</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

examples/socketdump/socketdump.c

@@ -1,6 +1,6 @@
 /*
  * socketdump.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -36,6 +36,7 @@
  * DESCRIPTION:
  *
  * usage: socketdump.exe [filter]
+ *        socketdump.exe --block [filter]
  */
 
 #include <winsock2.h>
@@ -61,24 +62,40 @@ int __cdecl main(int argc, char **argv)
     char local_str[INET6_ADDRSTRLEN+1], remote_str[INET6_ADDRSTRLEN+1];
     char *filename;
     DWORD path_len;
-    UINT packet_len;
     WINDIVERT_ADDRESS addr;
+    BOOL block = FALSE;
 
     switch (argc)
     {
         case 1:
             break;
         case 2:
-            filter = argv[1];
+            if (strcmp(argv[1], "--block") == 0)
+            {
+                block = TRUE;
+            }
+            else
+            {
+                filter = argv[1];
+            }
             break;
+        case 3:
+            if (strcmp(argv[1], "--block") == 0)
+            {
+                block = TRUE;
+                filter = argv[2];
+                break;
+            }
+            // Fallthrough:
         default:
-            fprintf(stderr, "usage: %s [filter]\n");
+            fprintf(stderr, "usage: %s [filter]\n", argv[0]);
+            fprintf(stderr, "       %s --block [filter]\n", argv[0]);
             exit(EXIT_FAILURE);
     }
 
     // Open WinDivert SOCKET handle:
     handle = WinDivertOpen(filter, WINDIVERT_LAYER_SOCKET, priority, 
-        WINDIVERT_FLAG_SNIFF | WINDIVERT_FLAG_RECV_ONLY);
+        (block? 0: WINDIVERT_FLAG_SNIFF) | WINDIVERT_FLAG_RECV_ONLY);
     if (handle == INVALID_HANDLE_VALUE)
     {
         if (GetLastError() == ERROR_INVALID_PARAMETER &&
@@ -97,28 +114,36 @@ int __cdecl main(int argc, char **argv)
     console = GetStdHandle(STD_OUTPUT_HANDLE);
     while (TRUE)
     {
-        if (!WinDivertRecv(handle, NULL, 0, &addr, &packet_len))
+        if (!WinDivertRecv(handle, NULL, 0, NULL, &addr))
         {
             fprintf(stderr, "failed to read packet (%d)\n", GetLastError());
             continue;
         }
 
-        SetConsoleTextAttribute(console, FOREGROUND_GREEN);
         switch (addr.Event)
         {
             case WINDIVERT_EVENT_SOCKET_BIND:
+                SetConsoleTextAttribute(console, FOREGROUND_GREEN);
                 printf("BIND");
                 break;
             case WINDIVERT_EVENT_SOCKET_LISTEN:
+                SetConsoleTextAttribute(console, FOREGROUND_GREEN);
                 printf("LISTEN");
                 break;
             case WINDIVERT_EVENT_SOCKET_CONNECT:
+                SetConsoleTextAttribute(console, FOREGROUND_GREEN);
                 printf("CONNECT");
                 break;
             case WINDIVERT_EVENT_SOCKET_ACCEPT:
+                SetConsoleTextAttribute(console, FOREGROUND_GREEN);
                 printf("ACCEPT");
                 break;
+            case WINDIVERT_EVENT_SOCKET_CLOSE:
+                SetConsoleTextAttribute(console, FOREGROUND_RED);
+                printf("CLOSE");
+                break;
             default:
+                SetConsoleTextAttribute(console, FOREGROUND_BLUE);
                 printf("???");
                 break;
         }
@@ -157,6 +182,18 @@ int __cdecl main(int argc, char **argv)
         SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN |
             FOREGROUND_BLUE);
 
+        printf(" endpoint=");
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN);
+        printf("%lu", addr.Socket.EndpointId);
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN |
+            FOREGROUND_BLUE);
+
+        printf(" parent=");
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN);
+        printf("%lu", addr.Socket.ParentEndpointId);
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN |
+            FOREGROUND_BLUE);
+
         printf(" protocol=");
         SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN);
         switch (addr.Socket.Protocol)

examples/socketdump/socketdump.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    socketdump.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="socketdump.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>socketdump</RootNamespace>
+  <ProjectName>socketdump</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

examples/streamdump/streamdump.c

@@ -1,6 +1,6 @@
 /*
  * streamdump.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -40,8 +40,6 @@
  * The program works by "reflecting" outbound TCP connections into inbound
  * TCP connections that are handled by a simple proxy server.
  *
- * This program also demonstrates WinDivert asynchronous I/O.
- *
  * usage: streamdump.exe port
  */
 
@@ -53,7 +51,7 @@
 
 #include "windivert.h"
 
-#define MAXBUF          0xFFFF
+#define MAXBUF          WINDIVERT_MTU_MAX
 #define PROXY_PORT      34010
 #define ALT_PORT        43010
 #define MAX_LINE        65
@@ -114,24 +112,6 @@ static void message(const char *msg, ...)
 #define warning(msg, ...)                       \
     message("warning: " msg, ## __VA_ARGS__)
 
-/*
- * Cleanup completed I/O requests.
- */
-static void cleanup(HANDLE ioport, OVERLAPPED *ignore)
-{
-    OVERLAPPED *overlapped;
-    DWORD iolen;
-    ULONG_PTR iokey = 0;
-
-    while (GetQueuedCompletionStatus(ioport, &iolen, &iokey, &overlapped, 0))
-    {
-        if (overlapped != ignore)
-        {
-            free(overlapped);
-        }
-    }
-}
-
 /*
  * Entry.
  */
@@ -148,9 +128,6 @@ int __cdecl main(int argc, char **argv)
     WINDIVERT_ADDRESS addr;
     PWINDIVERT_IPHDR ip_header;
     PWINDIVERT_TCPHDR tcp_header;
-    OVERLAPPED *poverlapped;
-    OVERLAPPED overlapped;
-    HANDLE ioport, event;
     DWORD len;
 
     // Init.
@@ -174,16 +151,6 @@ int __cdecl main(int argc, char **argv)
             GetLastError());
         exit(EXIT_FAILURE);
     }
-    ioport = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0);
-    if (ioport == NULL)
-    {
-        error("failed to create I/O completion port (%d)", GetLastError());
-    }
-    event = CreateEvent(NULL, FALSE, FALSE, NULL);
-    if (event == NULL)
-    {
-        error("failed to create event (%d)", GetLastError());
-    }
 
     // Divert all traffic to/from `port', `proxy_port' and `alt_port'.
     r = snprintf(filter, sizeof(filter),
@@ -200,10 +167,6 @@ int __cdecl main(int argc, char **argv)
     {
         error("failed to open the WinDivert device (%d)", GetLastError());
     }
-    if (CreateIoCompletionPort(handle, ioport, 0, 0) == NULL)
-    {
-        error("failed to associate I/O completion port (%d)", GetLastError());
-    }
 
     // Spawn proxy thread,
     config = (PPROXY_CONFIG)malloc(sizeof(PROXY_CONFIG));
@@ -224,34 +187,15 @@ int __cdecl main(int argc, char **argv)
     // Main loop:
     while (TRUE)
     {
-        memset(&overlapped, 0, sizeof(overlapped));
-        ResetEvent(event);
-        overlapped.hEvent = event;
-        if (!WinDivertRecvEx(handle, packet, sizeof(packet), &packet_len, 0,
-                &addr, NULL, &overlapped))
+        if (!WinDivertRecv(handle, packet, sizeof(packet), &packet_len, &addr))
         {
-            if (GetLastError() != ERROR_IO_PENDING)
-            {
-read_failed:
-                warning("failed to read packet (%d)", GetLastError());
-                continue;
-            }
-
-            // Timeout = 1s
-            while (WaitForSingleObject(event, 1000) == WAIT_TIMEOUT)
-            {
-                cleanup(ioport, &overlapped);
-            }
-            if (!GetOverlappedResult(handle, &overlapped, &len, FALSE))
-            {
-                goto read_failed;
-            }
-            packet_len = len;
+            warning("failed to read packet (%d)", GetLastError());
+            continue;
         }
-        cleanup(ioport, &overlapped);
 
-        if (!WinDivertHelperParsePacket(packet, packet_len, &ip_header, NULL,
-                NULL, NULL, &tcp_header, NULL, NULL, NULL))
+        WinDivertHelperParsePacket(packet, packet_len, &ip_header, NULL, NULL,
+            NULL, NULL, &tcp_header, NULL, NULL, NULL, NULL, NULL);
+        if (ip_header == NULL || tcp_header == NULL)
         {
             warning("failed to parse packet (%d)", GetLastError());
             continue;
@@ -293,18 +237,7 @@ read_failed:
         }
 
         WinDivertHelperCalcChecksums(packet, packet_len, &addr, 0);
-        poverlapped = (OVERLAPPED *)malloc(sizeof(OVERLAPPED));
-        if (poverlapped == NULL)
-        {
-            error("failed to allocate memory");
-        }
-        memset(poverlapped, 0, sizeof(OVERLAPPED));
-        if (WinDivertSendEx(handle, packet, packet_len, NULL, 0, &addr,
-                sizeof(WINDIVERT_ADDRESS), poverlapped))
-        {
-            continue;
-        }
-        if (GetLastError() != ERROR_IO_PENDING)
+        if (!WinDivertSend(handle, packet, packet_len, NULL, &addr))
         {
             warning("failed to send packet (%d)", GetLastError());
             continue;

examples/streamdump/streamdump.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    streamdump.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="streamdump.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>streamdump</RootNamespace>
+  <ProjectName>streamdump</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

examples/webfilter/webfilter.c

@@ -1,6 +1,6 @@
 /*
  * webfilter.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -53,8 +53,8 @@
 #define htons(x)            WinDivertHelperHtons(x)
 #define htonl(x)            WinDivertHelperHtonl(x)
 
-#define MAXBUF 0xFFFF
-#define MAXURL 4096
+#define MAXBUF              WINDIVERT_MTU_MAX
+#define MAXURL              4096
 
 /*
  * URL and blacklist representation.
@@ -197,19 +197,21 @@ int __cdecl main(int argc, char **argv)
     // Main loop:
     while (TRUE)
     {
-        if (!WinDivertRecv(handle, packet, sizeof(packet), &addr, &packet_len))
+        if (!WinDivertRecv(handle, packet, sizeof(packet), &packet_len, &addr))
         {
             fprintf(stderr, "warning: failed to read packet (%d)\n",
                 GetLastError());
             continue;
         }
 
-        if (!WinDivertHelperParsePacket(packet, packet_len, &ip_header, NULL,
-                NULL, NULL, &tcp_header, NULL, &payload, &payload_len) ||
+        WinDivertHelperParsePacket(packet, packet_len, &ip_header, NULL,
+            NULL, NULL, NULL, &tcp_header, NULL, &payload, &payload_len,
+            NULL, NULL);
+        if (ip_header == NULL || tcp_header == NULL || payload == NULL ||
             !BlackListPayloadMatch(blacklist, payload, (UINT16)payload_len))
         {
             // Packet does not match the blacklist; simply reinject it.
-            if (!WinDivertSend(handle, packet, packet_len, &addr, NULL))
+            if (!WinDivertSend(handle, packet, packet_len, NULL, &addr))
             {
                 fprintf(stderr, "warning: failed to reinject packet (%d)\n",
                     GetLastError());
@@ -229,7 +231,7 @@ int __cdecl main(int argc, char **argv)
         reset->tcp.SeqNum       = tcp_header->SeqNum;
         reset->tcp.AckNum       = tcp_header->AckNum;
         WinDivertHelperCalcChecksums((PVOID)reset, sizeof(PACKET), &addr, 0);
-        if (!WinDivertSend(handle, (PVOID)reset, sizeof(PACKET), &addr, NULL))
+        if (!WinDivertSend(handle, (PVOID)reset, sizeof(PACKET), NULL, &addr))
         {
             fprintf(stderr, "warning: failed to send reset packet (%d)\n",
                 GetLastError());
@@ -244,8 +246,8 @@ int __cdecl main(int argc, char **argv)
             htonl(ntohl(tcp_header->SeqNum) + payload_len);
         addr.Outbound = !addr.Outbound;     // Reverse direction.
         WinDivertHelperCalcChecksums((PVOID)blockpage, blockpage_len, &addr, 0);
-        if (!WinDivertSend(handle, (PVOID)blockpage, blockpage_len, &addr,
-                NULL))
+        if (!WinDivertSend(handle, (PVOID)blockpage, blockpage_len, NULL,
+                &addr))
         {
             fprintf(stderr, "warning: failed to send block page packet (%d)\n",
                 GetLastError());
@@ -262,7 +264,7 @@ int __cdecl main(int argc, char **argv)
         finish->tcp.AckNum       =
             htonl(ntohl(tcp_header->SeqNum) + payload_len);
         WinDivertHelperCalcChecksums((PVOID)finish, sizeof(PACKET), &addr, 0);
-        if (!WinDivertSend(handle, (PVOID)finish, sizeof(PACKET), &addr, NULL))
+        if (!WinDivertSend(handle, (PVOID)finish, sizeof(PACKET), NULL, &addr))
         {
             fprintf(stderr, "warning: failed to send finish packet (%d)\n",
                 GetLastError());

examples/webfilter/webfilter.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    webfilter.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="webfilter.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>webfilter</RootNamespace>
+  <ProjectName>webfilter</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

examples/windivertctl/windivertctl.c

@@ -1,6 +1,6 @@
 /*
  * windivertctl.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -50,19 +50,6 @@
 #define MAX_PACKET          0xFFFF
 #define MAX_FILTER_LEN      30000
 
-/*
- * Process info.
- */
-typedef struct INFO
-{
-    UINT32 process_id;
-    UINT32 ref_count;
-    HANDLE process;
-    struct INFO *next;
-} INFO, *PINFO;
-
-static INFO *open = NULL;       // All open handles
-
 /*
  * Modes.
  */
@@ -70,123 +57,37 @@ typedef enum
 {
     LIST,
     WATCH,
-    KILLALL
+    KILL,
+    UNINSTALL
 } MODE;
 
-/*
- * Add a new process.
- */
-static HANDLE add_process(UINT32 process_id)
-{
-    PINFO info = open;
-    HANDLE process;
-
-    while (info != NULL)
-    {
-        if (info->process_id == process_id)
-        {
-            info->ref_count++;
-            return info->process;
-        }
-        info = info->next;
-    }
-
-    process = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION | PROCESS_TERMINATE,
-        FALSE, process_id);
-    info = (INFO *)malloc(sizeof(INFO));
-    if (info == NULL)
-    {
-        fprintf(stderr, "error: failed to allocate memory (%d)\n",
-            GetLastError());
-        exit(EXIT_FAILURE);
-    }
-    info->process_id = process_id;
-    info->process    = process;
-    info->ref_count  = 1;
-    info->next       = open;
-    open = info;
-    return process;
-}
-
-/*
- * Lookup a process.
- */
-static HANDLE lookup_process(UINT32 process_id)
-{
-    PINFO info = open;
-
-    while (info != NULL)
-    {
-        if (info->process_id == process_id)
-        {
-            return info->process;
-        }
-        info = info->next;
-    }
-}
-
-/*
- * Remove an old process.
- */
-static void remove_process(UINT32 process_id)
-{
-    PINFO info = open, prev = NULL;
-
-    while (info != NULL)
-    {
-        if (info->process_id == process_id)
-        {
-            info->ref_count--;
-            if (info->ref_count > 0)
-            {
-                return;
-            }
-            break;
-        }
-        prev = info;
-        info = info->next;
-    }
-
-    if (info->process != NULL)
-    {
-        CloseHandle(info->process);
-    }
-    if (prev != NULL)
-    {
-        prev->next = info->next;
-    }
-    else
-    {
-        open = info->next;
-    }
-    free(info);
-}
-
 /*
  * Entry.
  */
 int __cdecl main(int argc, char **argv)
 {
-    HANDLE handle, process, console;
+    HANDLE handle, process, console, mutex;
     INT16 priority = -333;      // Arbitrary.
     UINT packet_len;
     static UINT8 packet[MAX_PACKET];
     static char path[MAX_PATH+1];
     static char filter_str[MAX_FILTER_LEN];
-    PVOID object;
     DWORD path_len;
     BOOL or;
     WINDIVERT_ADDRESS addr;
     ULONGLONG freq, start_count;
     LARGE_INTEGER li;
     MODE mode;
+    SC_HANDLE manager = NULL, service = NULL;
+    SERVICE_STATUS status;
     const char *filter = "true";
     const char *err_str = NULL;
 
     if (argc != 2 && argc != 3)
     {
 usage:
-        fprintf(stderr, "usage: %s (list|watch|killall) [filter]\n", argv[0]);
+        fprintf(stderr, "usage: %s (list|watch|kill) [filter]\n", argv[0]);
+        fprintf(stderr, "       %s uninstall\n", argv[0]);
         exit(EXIT_FAILURE);
     }
     if (strcmp(argv[1], "list") == 0)
@@ -197,9 +98,17 @@ usage:
     {
         mode = WATCH;
     }
-    else if (strcmp(argv[1], "killall") == 0)
+    else if (strcmp(argv[1], "kill") == 0)
     {
-        mode = KILLALL;
+        mode = KILL;
+    }
+    else if (strcmp(argv[1], "uninstall") == 0)
+    {
+        if (argc != 2)
+        {
+            goto usage;
+        }
+        mode = UNINSTALL;
     }
     else
     {
@@ -228,7 +137,7 @@ usage:
             return 0;
         }
         if (GetLastError() == ERROR_INVALID_PARAMETER &&
-            !WinDivertHelperCompileFilter(filter, WINDIVERT_LAYER_FLOW,
+            !WinDivertHelperCompileFilter(filter, WINDIVERT_LAYER_REFLECT,
                 NULL, 0, &err_str, NULL))
         {
             fprintf(stderr, "error: invalid filter \"%s\"\n", err_str);
@@ -244,18 +153,29 @@ usage:
             GetLastError());
         return EXIT_FAILURE;
     }
+    if (!WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_LENGTH,
+            WINDIVERT_PARAM_QUEUE_LENGTH_MAX) ||
+        !WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_SIZE,
+            WINDIVERT_PARAM_QUEUE_SIZE_MAX) ||
+        !WinDivertSetParam(handle, WINDIVERT_PARAM_QUEUE_TIME,
+            WINDIVERT_PARAM_QUEUE_TIME_MAX))
+    {
+        fprintf(stderr, "error: failed to set WinDivert handle params (%d)\n",
+            GetLastError());
+        return EXIT_FAILURE;
+    }
 
     // Main loop:
     console = GetStdHandle(STD_OUTPUT_HANDLE);
     while (TRUE)
     {
-        if (!WinDivertRecv(handle, packet, sizeof(packet), &addr, &packet_len))
+        if (!WinDivertRecv(handle, packet, sizeof(packet), &packet_len, &addr))
         {
             if (mode != WATCH && GetLastError() == ERROR_NO_DATA)
             {
                 break;
             }
-            fprintf(stderr, "failed to event (%d)\n", GetLastError());
+            fprintf(stderr, "failed to receive event (%d)\n", GetLastError());
             continue;
         }
 
@@ -263,12 +183,10 @@ usage:
         {
             case WINDIVERT_EVENT_REFLECT_OPEN:
                 // Open handle:
-                process = add_process(addr.Reflect.ProcessId);
-                if (mode == KILLALL)
+                if (mode == KILL || mode == UNINSTALL)
                 {
                     SetConsoleTextAttribute(console, FOREGROUND_RED);
                     fputs("KILL", stdout);
-                    TerminateProcess(process, 0);
                 }
                 else
                 {
@@ -283,7 +201,6 @@ usage:
                 {
                     continue;
                 }
-                process = lookup_process(addr.Reflect.ProcessId);
                 SetConsoleTextAttribute(console, FOREGROUND_RED);
                 fputs("CLOSE", stdout);
                 break;
@@ -292,6 +209,9 @@ usage:
                 fputs("???", stdout);
                 break;
         }
+        process = OpenProcess(
+            PROCESS_QUERY_LIMITED_INFORMATION | PROCESS_TERMINATE,
+            FALSE, addr.Reflect.ProcessId);
         SetConsoleTextAttribute(console,
             FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
         fputs(" time=", stdout);
@@ -310,6 +230,11 @@ usage:
         if (process != NULL)
         {
             path_len = GetProcessImageFileName(process, path, sizeof(path));
+            if (mode == KILL || mode == UNINSTALL)
+            {
+                TerminateProcess(process, 0);
+            }
+            CloseHandle(process);
         }
         SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN);
         printf("%s", (path_len != 0? path: "???"));
@@ -369,11 +294,6 @@ usage:
                 printf("%sSEND_ONLY", (or? "|": ""));
                 or = TRUE;
             }
-            if ((addr.Reflect.Flags & WINDIVERT_FLAG_RECV_PARTIAL) != 0)
-            {
-                printf("%sRECV_PARTIAL", (or? "|": ""));
-                or = TRUE;
-            }
             if ((addr.Reflect.Flags & WINDIVERT_FLAG_NO_INSTALL) != 0)
             {
                 printf("%sNO_INSTALL", (or? "|": ""));
@@ -389,21 +309,18 @@ usage:
             FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
         fputs(" filter=", stdout);
         SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN);
-        WinDivertHelperParsePacket(packet, packet_len, NULL, NULL, NULL, NULL,
-            NULL, NULL, &object, NULL);
-        if (WinDivertHelperFormatFilter((char *)object, addr.Reflect.Layer,
+        if (WinDivertHelperFormatFilter((char *)packet, addr.Reflect.Layer,
             filter_str, sizeof(filter_str)))
         {
             printf("\"%s\"", filter_str);
         }
+        else
+        {
+            printf("\"%s\"", (char *)packet);
+        }
         SetConsoleTextAttribute(console,
             FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
         putchar('\n');
-
-        if (addr.Event == WINDIVERT_EVENT_REFLECT_CLOSE)
-        {
-            remove_process(addr.Reflect.ProcessId);
-        }
     }
 
     if (!WinDivertClose(handle))
@@ -413,6 +330,63 @@ usage:
         return EXIT_FAILURE;
     }
 
+    if (mode == UNINSTALL)
+    {
+        // Stop & delete the WinDivert service:
+        mutex = CreateMutex(NULL, FALSE, "WinDivertDriverInstallMutex");
+        if (mutex == NULL)
+        {
+            fprintf(stderr, "error: failed to create WinDivert driver "
+                "install mutex (%d)\n", GetLastError());
+            return EXIT_FAILURE;
+        }
+        switch (WaitForSingleObject(mutex, INFINITE))
+        {
+            case WAIT_OBJECT_0: case WAIT_ABANDONED:
+                break;
+            default:
+                fprintf(stderr, "error: failed to acquire WinDivert driver "
+                    "install mutex (%d)\n", GetLastError());
+                return EXIT_FAILURE;
+        }
+        manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+        if (manager == NULL)
+        {
+            fprintf(stderr, "error: failed to open service manager (%d)\n",
+                GetLastError());
+            return EXIT_FAILURE;
+        }
+        service = OpenService(manager, "WinDivert", SERVICE_ALL_ACCESS);
+        if (service == NULL)
+        {
+            fprintf(stderr, "error: failed to open WinDivert service (%d)\n",
+                GetLastError());
+            return EXIT_FAILURE;
+        }
+        if (!ControlService(service, SERVICE_CONTROL_STOP, &status))
+        {
+            fprintf(stderr, "error: failed to stop WinDivert service (%d)\n",
+                GetLastError());
+            return EXIT_FAILURE;
+        }
+        if (status.dwCurrentState != SERVICE_STOPPED)
+        {
+            fprintf(stderr, "error: failed to stop WinDivert service");
+            return EXIT_FAILURE;
+        }
+        CloseServiceHandle(service);
+        CloseServiceHandle(manager);
+
+        SetConsoleTextAttribute(console, FOREGROUND_GREEN);
+        fputs("UNINSTALL", stdout);
+        SetConsoleTextAttribute(console,
+            FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
+        puts(" WinDivert");
+
+        ReleaseMutex(mutex);
+        CloseHandle(mutex);
+    }
+
     return 0;
 }
 

examples/windivertctl/windivertctl.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    windivertctl.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="windivertctl.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>windivertctl</RootNamespace>
+  <ProjectName>windivertctl</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\install\MSVC\i386\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\install\MSVC\amd64\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

include/windivert.h

@@ -1,6 +1,6 @@
 /*
  * windivert.h
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -95,6 +95,8 @@ typedef struct
  */
 typedef struct
 {
+    UINT64 EndpointId;                  /* Endpoint ID. */
+    UINT64 ParentEndpointId;            /* Parent endpoint ID. */
     UINT32 ProcessId;                   /* Process ID. */
     UINT32 LocalAddr[4];                /* Local address. */
     UINT32 RemoteAddr[4];               /* Remote address. */
@@ -108,6 +110,8 @@ typedef struct
  */
 typedef struct
 {
+    UINT64 EndpointId;                  /* Endpoint ID. */
+    UINT64 ParentEndpointId;            /* Parent Endpoint ID. */
     UINT32 ProcessId;                   /* Process ID. */
     UINT32 LocalAddr[4];                /* Local address. */
     UINT32 RemoteAddr[4];               /* Remote address. */
@@ -131,27 +135,37 @@ typedef struct
 /*
  * WinDivert address.
  */
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4201)
+#endif
 typedef struct
 {
     INT64  Timestamp;                   /* Packet's timestamp. */
-    UINT64 Layer:8;                     /* Packet's layer. */
-    UINT64 Event:8;                     /* Packet event. */
-    UINT64 Outbound:1;                  /* Packet is outound? */
-    UINT64 Loopback:1;                  /* Packet is loopback? */
-    UINT64 Impostor:1;                  /* Packet is impostor? */
-    UINT64 IPv6:1;                      /* Packet is IPv6? */
-    UINT64 PseudoIPChecksum:1;          /* Packet has pseudo IPv4 checksum? */
-    UINT64 PseudoTCPChecksum:1;         /* Packet has pseudo TCP checksum? */
-    UINT64 PseudoUDPChecksum:1;         /* Packet has pseudo UDP checksum? */
-    UINT64 Reserved:41;
+    UINT32 Layer:8;                     /* Packet's layer. */
+    UINT32 Event:8;                     /* Packet event. */
+    UINT32 Sniffed:1;                   /* Packet was sniffed? */
+    UINT32 Outbound:1;                  /* Packet is outound? */
+    UINT32 Loopback:1;                  /* Packet is loopback? */
+    UINT32 Impostor:1;                  /* Packet is impostor? */
+    UINT32 IPv6:1;                      /* Packet is IPv6? */
+    UINT32 IPChecksum:1;                /* Packet has valid IPv4 checksum? */
+    UINT32 TCPChecksum:1;               /* Packet has valid TCP checksum? */
+    UINT32 UDPChecksum:1;               /* Packet has valid UDP checksum? */
+    UINT32 Reserved1:8;
+    UINT32 Reserved2;
     union
     {
         WINDIVERT_DATA_NETWORK Network; /* Network layer data. */
         WINDIVERT_DATA_FLOW Flow;       /* Flow layer data. */
         WINDIVERT_DATA_SOCKET Socket;   /* Socket layer data. */
         WINDIVERT_DATA_REFLECT Reflect; /* Reflect layer data. */
+        UINT8 Reserved3[64];
     };
 } WINDIVERT_ADDRESS, *PWINDIVERT_ADDRESS;
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
 
 /*
  * WinDivert events.
@@ -163,11 +177,12 @@ typedef enum
                                         /* Flow established. */
     WINDIVERT_EVENT_FLOW_DELETED = 2,   /* Flow deleted. */
     WINDIVERT_EVENT_SOCKET_BIND = 3,    /* Socket bind. */
-    WINDIVERT_EVENT_SOCKET_LISTEN = 4,  /* Socket listen. */
-    WINDIVERT_EVENT_SOCKET_CONNECT = 5, /* Socket connect. */
+    WINDIVERT_EVENT_SOCKET_CONNECT = 4, /* Socket connect. */
+    WINDIVERT_EVENT_SOCKET_LISTEN = 5,  /* Socket listen. */
     WINDIVERT_EVENT_SOCKET_ACCEPT = 6,  /* Socket accept. */
-    WINDIVERT_EVENT_REFLECT_OPEN = 7,   /* WinDivert handle opened. */
-    WINDIVERT_EVENT_REFLECT_CLOSE = 8,  /* WinDivert handle closed. */
+    WINDIVERT_EVENT_SOCKET_CLOSE = 7,   /* Socket close. */
+    WINDIVERT_EVENT_REFLECT_OPEN = 8,   /* WinDivert handle opened. */
+    WINDIVERT_EVENT_REFLECT_CLOSE = 9,  /* WinDivert handle closed. */
 } WINDIVERT_EVENT, *PWINDIVERT_EVENT;
 
 /*
@@ -179,19 +194,20 @@ typedef enum
 #define WINDIVERT_FLAG_READ_ONLY        WINDIVERT_FLAG_RECV_ONLY
 #define WINDIVERT_FLAG_SEND_ONLY        0x0008
 #define WINDIVERT_FLAG_WRITE_ONLY       WINDIVERT_FLAG_SEND_ONLY
-#define WINDIVERT_FLAG_RECV_PARTIAL     0x0010
-#define WINDIVERT_FLAG_NO_INSTALL       0x0020
+#define WINDIVERT_FLAG_NO_INSTALL       0x0010
 
 /*
  * WinDivert parameters.
  */
 typedef enum
 {
-    WINDIVERT_PARAM_QUEUE_LEN  = 0,     /* Packet queue length. */
+    WINDIVERT_PARAM_QUEUE_LENGTH = 0,   /* Packet queue length. */
     WINDIVERT_PARAM_QUEUE_TIME = 1,     /* Packet queue time. */
     WINDIVERT_PARAM_QUEUE_SIZE = 2,     /* Packet queue size. */
+    WINDIVERT_PARAM_VERSION_MAJOR = 3,  /* Driver version (major). */
+    WINDIVERT_PARAM_VERSION_MINOR = 4,  /* Driver version (minor). */
 } WINDIVERT_PARAM, *PWINDIVERT_PARAM;
-#define WINDIVERT_PARAM_MAX             WINDIVERT_PARAM_QUEUE_SIZE
+#define WINDIVERT_PARAM_MAX             WINDIVERT_PARAM_VERSION_MINOR
 
 /*
  * WinDivert shutdown parameter.
@@ -220,19 +236,19 @@ extern WINDIVERTEXPORT HANDLE WinDivertOpen(
  */
 extern WINDIVERTEXPORT BOOL WinDivertRecv(
     __in        HANDLE handle,
-    __out       VOID *pPacket,
+    __out_opt   VOID *pPacket,
     __in        UINT packetLen,
-    __out_opt   WINDIVERT_ADDRESS *pAddr,
-    __out_opt   UINT *pReadLen);
+    __out_opt   UINT *pRecvLen,
+    __out_opt   WINDIVERT_ADDRESS *pAddr);
 
 /*
  * Receive (read) a packet from a WinDivert handle.
  */
 extern WINDIVERTEXPORT BOOL WinDivertRecvEx(
     __in        HANDLE handle,
-    __out       PVOID pPacket,
+    __out_opt   VOID *pPacket,
     __in        UINT packetLen,
-    __out_opt   UINT *pReadLen,
+    __out_opt   UINT *pRecvLen,
     __in        UINT64 flags,
     __out       WINDIVERT_ADDRESS *pAddr,
     __inout_opt UINT *pAddrLen,
@@ -245,8 +261,8 @@ extern WINDIVERTEXPORT BOOL WinDivertSend(
     __in        HANDLE handle,
     __in        const VOID *pPacket,
     __in        UINT packetLen,
-    __in        const WINDIVERT_ADDRESS *pAddr,
-    __out_opt   UINT *pWriteLen);
+    __out_opt   UINT *pSendLen,
+    __in        const WINDIVERT_ADDRESS *pAddr);
 
 /*
  * Send (write/inject) a packet to a WinDivert handle.
@@ -255,7 +271,7 @@ extern WINDIVERTEXPORT BOOL WinDivertSendEx(
     __in        HANDLE handle,
     __in        const VOID *pPacket,
     __in        UINT packetLen,
-    __out_opt   UINT *pWriteLen,
+    __out_opt   UINT *pSendLen,
     __in        UINT64 flags,
     __in        const WINDIVERT_ADDRESS *pAddr,
     __in        UINT addrLen,
@@ -292,10 +308,32 @@ extern WINDIVERTEXPORT BOOL WinDivertGetParam(
 
 #endif      /* WINDIVERT_KERNEL */
 
+/*
+ * WinDivert constants.
+ */
+#define WINDIVERT_PRIORITY_HIGHEST              30000
+#define WINDIVERT_PRIORITY_LOWEST               (-WINDIVERT_PRIORITY_HIGHEST)
+#define WINDIVERT_PARAM_QUEUE_LENGTH_DEFAULT    4096
+#define WINDIVERT_PARAM_QUEUE_LENGTH_MIN        32
+#define WINDIVERT_PARAM_QUEUE_LENGTH_MAX        16384
+#define WINDIVERT_PARAM_QUEUE_TIME_DEFAULT      2000        /* 2s */
+#define WINDIVERT_PARAM_QUEUE_TIME_MIN          100         /* 100ms */
+#define WINDIVERT_PARAM_QUEUE_TIME_MAX          16000       /* 16s */
+#define WINDIVERT_PARAM_QUEUE_SIZE_DEFAULT      4194304     /* 4MB */
+#define WINDIVERT_PARAM_QUEUE_SIZE_MIN          65535       /* 64KB */
+#define WINDIVERT_PARAM_QUEUE_SIZE_MAX          33554432    /* 32MB */
+#define WINDIVERT_BATCH_MAX                     0xFF        /* 255 */
+#define WINDIVERT_MTU_MAX                       (40 + 0xFFFF)
+
 /****************************************************************************/
 /* WINDIVERT HELPER API                                                     */
 /****************************************************************************/
 
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4214)
+#endif
+
 /*
  * IPv4/IPv6/ICMP/ICMPv6/TCP/UDP header definitions.
  */
@@ -430,6 +468,10 @@ typedef struct
     UINT16 Checksum;
 } WINDIVERT_UDPHDR, *PWINDIVERT_UDPHDR;
 
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
 /*
  * Flags for WinDivertHelperCalcChecksums()
  */
@@ -461,12 +503,15 @@ extern WINDIVERTEXPORT BOOL WinDivertHelperParsePacket(
     __in        UINT packetLen,
     __out_opt   PWINDIVERT_IPHDR *ppIpHdr,
     __out_opt   PWINDIVERT_IPV6HDR *ppIpv6Hdr,
+    __out_opt   UINT8 *pProtocol,
     __out_opt   PWINDIVERT_ICMPHDR *ppIcmpHdr,
     __out_opt   PWINDIVERT_ICMPV6HDR *ppIcmpv6Hdr,
     __out_opt   PWINDIVERT_TCPHDR *ppTcpHdr,
     __out_opt   PWINDIVERT_UDPHDR *ppUdpHdr,
     __out_opt   PVOID *ppData,
-    __out_opt   UINT *pDataLen);
+    __out_opt   UINT *pDataLen,
+    __out_opt   PVOID *ppNext,
+    __out_opt   UINT *pNextLen);
 
 /*
  * Parse an IPv4 address.
@@ -501,12 +546,19 @@ extern WINDIVERTEXPORT BOOL WinDivertHelperFormatIPv6Address(
 /*
  * Calculate IPv4/IPv6/ICMP/ICMPv6/TCP/UDP checksums.
  */
-extern WINDIVERTEXPORT UINT WinDivertHelperCalcChecksums(
+extern WINDIVERTEXPORT BOOL WinDivertHelperCalcChecksums(
     __inout     VOID *pPacket, 
     __in        UINT packetLen,
-    __in_opt    const WINDIVERT_ADDRESS *pAddr,
+    __out_opt   WINDIVERT_ADDRESS *pAddr,
     __in        UINT64 flags);
 
+/*
+ * Decrement the TTL/HopLimit.
+ */
+extern WINDIVERTEXPORT BOOL WinDivertHelperDecrementTTL(
+    __inout     VOID *pPacket,
+    __in        UINT packetLen);
+
 /*
  * Compile the given filter string.
  */
@@ -551,6 +603,16 @@ extern WINDIVERTEXPORT UINT64 WinDivertHelperNtohll(
     __in        UINT64 x);
 extern WINDIVERTEXPORT UINT64 WinDivertHelperHtonll(
     __in        UINT64 x);
+extern WINDIVERTEXPORT void WinDivertHelperNtohIPv6Address(
+    __in        const UINT *inAddr,
+    __out       UINT *outAddr);
+extern WINDIVERTEXPORT void WinDivertHelperHtonIPv6Address(
+    __in        const UINT *inAddr,
+    __out       UINT *outAddr);
+
+/*
+ * Old names to be removed in the next version.
+ */
 extern WINDIVERTEXPORT void WinDivertHelperNtohIpv6Address(
     __in        const UINT *inAddr,
     __out       UINT *outAddr);

include/windivert_device.h

@@ -1,6 +1,6 @@
 /*
  * windivert_device.h
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -44,20 +44,25 @@
 #define WINDIVERT_KERNEL
 #include "windivert.h"
 
-#define WINDIVERT_VERSION                           2
+#define WINDIVERT_VERSION_MAJOR                     2
 #define WINDIVERT_VERSION_MINOR                     0
 
+#define WINDIVERT_MAGIC_DLL                         0x4C4C447669645724ull
+#define WINDIVERT_MAGIC_SYS                         0x5359537669645723ull
+
 #define WINDIVERT_STR2(s)                           #s
 #define WINDIVERT_STR(s)                            WINDIVERT_STR2(s)
 #define WINDIVERT_LSTR2(s)                          L ## #s
 #define WINDIVERT_LSTR(s)                           WINDIVERT_LSTR2(s)
 
 #define WINDIVERT_VERSION_LSTR                                              \
-    WINDIVERT_LSTR(WINDIVERT_VERSION) L"."                                  \
+    WINDIVERT_LSTR(WINDIVERT_VERSION_MAJOR) L"."                            \
         WINDIVERT_LSTR(WINDIVERT_VERSION_MINOR)
 
 #define WINDIVERT_DEVICE_NAME                                               \
-    L"WinDivert" WINDIVERT_VERSION_LSTR
+    L"WinDivert"
+#define WINDIVERT_LAYER_NAME                                                \
+    WINDIVERT_DEVICE_NAME WINDIVERT_VERSION_LSTR
 
 #define WINDIVERT_FILTER_FIELD_ZERO                 0
 #define WINDIVERT_FILTER_FIELD_INBOUND              1
@@ -125,20 +130,25 @@
 #define WINDIVERT_FILTER_FIELD_LOCALPORT            63
 #define WINDIVERT_FILTER_FIELD_REMOTEPORT           64
 #define WINDIVERT_FILTER_FIELD_PROTOCOL             65
-#define WINDIVERT_FILTER_FIELD_LAYER                66
-#define WINDIVERT_FILTER_FIELD_EVENT                67
-#define WINDIVERT_FILTER_FIELD_PACKET               68
-#define WINDIVERT_FILTER_FIELD_PACKET16             69
-#define WINDIVERT_FILTER_FIELD_PACKET32             70
-#define WINDIVERT_FILTER_FIELD_TCP_PAYLOAD          71
-#define WINDIVERT_FILTER_FIELD_TCP_PAYLOAD16        72
-#define WINDIVERT_FILTER_FIELD_TCP_PAYLOAD32        73
-#define WINDIVERT_FILTER_FIELD_UDP_PAYLOAD          74
-#define WINDIVERT_FILTER_FIELD_UDP_PAYLOAD16        75
-#define WINDIVERT_FILTER_FIELD_UDP_PAYLOAD32        76
-#define WINDIVERT_FILTER_FIELD_RANDOM8              77
-#define WINDIVERT_FILTER_FIELD_RANDOM16             78
-#define WINDIVERT_FILTER_FIELD_RANDOM32             79
+#define WINDIVERT_FILTER_FIELD_ENDPOINTID           66
+#define WINDIVERT_FILTER_FIELD_PARENTENDPOINTID     67
+#define WINDIVERT_FILTER_FIELD_LAYER                68
+#define WINDIVERT_FILTER_FIELD_PRIORITY             69
+#define WINDIVERT_FILTER_FIELD_EVENT                70
+#define WINDIVERT_FILTER_FIELD_PACKET               71
+#define WINDIVERT_FILTER_FIELD_PACKET16             72
+#define WINDIVERT_FILTER_FIELD_PACKET32             73
+#define WINDIVERT_FILTER_FIELD_TCP_PAYLOAD          74
+#define WINDIVERT_FILTER_FIELD_TCP_PAYLOAD16        75
+#define WINDIVERT_FILTER_FIELD_TCP_PAYLOAD32        76
+#define WINDIVERT_FILTER_FIELD_UDP_PAYLOAD          77
+#define WINDIVERT_FILTER_FIELD_UDP_PAYLOAD16        78
+#define WINDIVERT_FILTER_FIELD_UDP_PAYLOAD32        79
+#define WINDIVERT_FILTER_FIELD_LENGTH               80
+#define WINDIVERT_FILTER_FIELD_TIMESTAMP            81
+#define WINDIVERT_FILTER_FIELD_RANDOM8              82
+#define WINDIVERT_FILTER_FIELD_RANDOM16             83
+#define WINDIVERT_FILTER_FIELD_RANDOM32             84
 #define WINDIVERT_FILTER_FIELD_MAX                  \
     WINDIVERT_FILTER_FIELD_RANDOM32
 
@@ -150,15 +160,14 @@
 #define WINDIVERT_FILTER_TEST_GEQ                   5
 #define WINDIVERT_FILTER_TEST_MAX                   WINDIVERT_FILTER_TEST_GEQ
 
-#define WINDIVERT_FILTER_MAXLEN                     (0xFF-2)
+#define WINDIVERT_FILTER_MAXLEN                     256
 
-#define WINDIVERT_FILTER_RESULT_ACCEPT              (WINDIVERT_FILTER_MAXLEN+1)
-#define WINDIVERT_FILTER_RESULT_REJECT              (WINDIVERT_FILTER_MAXLEN+2)
+#define WINDIVERT_FILTER_RESULT_ACCEPT              0x7FFE
+#define WINDIVERT_FILTER_RESULT_REJECT              0x7FFF
 
 /*
  * WinDivert layers.
  */
-#define WINDIVERT_LAYER_DEFAULT                     WINDIVERT_LAYER_NETWORK
 #define WINDIVERT_LAYER_MAX                         WINDIVERT_LAYER_REFLECT
 
 /*
@@ -172,8 +181,7 @@
  */
 #define WINDIVERT_FLAGS_ALL                                                 \
     (WINDIVERT_FLAG_SNIFF | WINDIVERT_FLAG_DROP | WINDIVERT_FLAG_RECV_ONLY |\
-        WINDIVERT_FLAG_SEND_ONLY | WINDIVERT_FLAG_RECV_PARTIAL |            \
-        WINDIVERT_FLAG_NO_INSTALL)
+        WINDIVERT_FLAG_SEND_ONLY | WINDIVERT_FLAG_NO_INSTALL)
 #define WINDIVERT_FLAGS_EXCLUDE(flags, flag1, flag2)                        \
     (((flags) & ((flag1) | (flag2))) != ((flag1) | (flag2)))
 #define WINDIVERT_FLAGS_VALID(flags)                                        \
@@ -181,76 +189,110 @@
      WINDIVERT_FLAGS_EXCLUDE(flags, WINDIVERT_FLAG_SNIFF,                   \
         WINDIVERT_FLAG_DROP) &&                                             \
      WINDIVERT_FLAGS_EXCLUDE(flags, WINDIVERT_FLAG_RECV_ONLY,               \
-        WINDIVERT_FLAG_SEND_ONLY) &&                                        \
-     WINDIVERT_FLAGS_EXCLUDE(flags, WINDIVERT_FLAG_RECV_PARTIAL,            \
         WINDIVERT_FLAG_SEND_ONLY))
 
 /*
  * WinDivert filter flags.
  */
-#define WINDIVERT_FILTER_FLAG_INBOUND               0x0000000000000001ull
-#define WINDIVERT_FILTER_FLAG_OUTBOUND              0x0000000000000002ull
-#define WINDIVERT_FILTER_FLAG_IP                    0x0000000000000004ull
-#define WINDIVERT_FILTER_FLAG_IPV6                  0x0000000000000008ull
-#define WINDIVERT_FILTER_FLAG_EVENT_FLOW_DELETED    0x0000000000000010ull
-#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_BIND     0x0000000000000020ull
-#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_CONNECT  0x0000000000000040ull
-#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_LISTEN   0x0000000000000080ull
-#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_ACCEPT   0x0000000000000100ull
+#define WINDIVERT_FILTER_FLAG_INBOUND               0x0000000000000010ull
+#define WINDIVERT_FILTER_FLAG_OUTBOUND              0x0000000000000020ull
+#define WINDIVERT_FILTER_FLAG_IP                    0x0000000000000040ull
+#define WINDIVERT_FILTER_FLAG_IPV6                  0x0000000000000080ull
+#define WINDIVERT_FILTER_FLAG_EVENT_FLOW_DELETED    0x0000000000000100ull
+#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_BIND     0x0000000000000200ull
+#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_CONNECT  0x0000000000000400ull
+#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_LISTEN   0x0000000000000800ull
+#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_ACCEPT   0x0000000000001000ull
+#define WINDIVERT_FILTER_FLAG_EVENT_SOCKET_CLOSE    0x0000000000002000ull
 
 #define WINDIVERT_FILTER_FLAGS_ALL                                          \
-    (WINDIVERT_FILTER_FLAG_INBOUND | WINDIVERT_FILTER_FLAG_OUTBOUND |       \
-        WINDIVERT_FILTER_FLAG_IP | WINDIVERT_FILTER_FLAG_IPV6 |             \
+    (WINDIVERT_FILTER_FLAG_INBOUND |                                        \
+        WINDIVERT_FILTER_FLAG_OUTBOUND |                                    \
+        WINDIVERT_FILTER_FLAG_IP |                                          \
+        WINDIVERT_FILTER_FLAG_IPV6 |                                        \
         WINDIVERT_FILTER_FLAG_EVENT_FLOW_DELETED |                          \
         WINDIVERT_FILTER_FLAG_EVENT_SOCKET_BIND |                           \
         WINDIVERT_FILTER_FLAG_EVENT_SOCKET_CONNECT |                        \
         WINDIVERT_FILTER_FLAG_EVENT_SOCKET_LISTEN |                         \
-        WINDIVERT_FILTER_FLAG_EVENT_SOCKET_ACCEPT)
+        WINDIVERT_FILTER_FLAG_EVENT_SOCKET_ACCEPT |                         \
+        WINDIVERT_FILTER_FLAG_EVENT_SOCKET_CLOSE)
 
 /*
  * WinDivert priorities.
  */
-#define WINDIVERT_PRIORITY_DEFAULT                  0
-#define WINDIVERT_PRIORITY_MAX                      30000
-#define WINDIVERT_PRIORITY_MIN                      -WINDIVERT_PRIORITY_MAX
+#define WINDIVERT_PRIORITY_MAX                      WINDIVERT_PRIORITY_HIGHEST
+#define WINDIVERT_PRIORITY_MIN                      WINDIVERT_PRIORITY_LOWEST
 
 /*
- * WinDivert parameters.
+ * WinDivert timestamps.
  */
-#define WINDIVERT_PARAM_QUEUE_LEN_DEFAULT           2048
-#define WINDIVERT_PARAM_QUEUE_LEN_MIN               16
-#define WINDIVERT_PARAM_QUEUE_LEN_MAX               16384
-#define WINDIVERT_PARAM_QUEUE_TIME_DEFAULT          1000        // 1s
-#define WINDIVERT_PARAM_QUEUE_TIME_MIN              20          // 20ms
-#define WINDIVERT_PARAM_QUEUE_TIME_MAX              8000        // 8s
-#define WINDIVERT_PARAM_QUEUE_SIZE_MIN              65535       // 64KB
-#define WINDIVERT_PARAM_QUEUE_SIZE_MAX              33554432    // 32MB
-#define WINDIVERT_PARAM_QUEUE_SIZE_DEFAULT          4194304     // 4MB
-
-/*
- * WinDivert batch limits.
- */
-#define WINDIVERT_BATCH_MAX                         0xFF
+#define WINDIVERT_TIMESTAMP_MAX                     0x7FFFFFFFFFFFFFFFull
 
 /*
  * WinDivert message definitions.
  */
 #pragma pack(push, 1)
-typedef struct
+typedef union
 {
-    UINT64 arg1;                    // argument #1
-    UINT64 arg2;                    // argument #2
+    struct
+    {
+        UINT64 addr;                // WINDIVERT_ADDRESS pointer.
+        UINT64 addr_len_ptr;        // sizeof(addr) pointer.
+    } recv;
+    struct
+    {
+        UINT64 addr;                // WINDIVERT_ADDRESS pointer.
+        UINT64 addr_len;            // sizeof(addr).
+    } send;
+    struct
+    {
+        UINT32 layer;               // Handle layer.
+        UINT32 priority;            // Handle priority.
+        UINT64 flags;               // Handle flags.
+    } initialize;
+    struct
+    {
+        UINT64 flags;               // Filter flags.
+    } startup;
+    struct
+    {
+        UINT32 how;                 // WINDIVERT_SHUTDOWN_*
+    } shutdown;
+    struct
+    {
+        UINT32 param;               // WINDIVERT_PARAM_*
+    } get_param;
+    struct
+    {
+        UINT64 val;                 // Value pointer.
+        UINT32 param;               // WINDIVERT_PARAM_*
+    } set_param;
 } WINDIVERT_IOCTL, *PWINDIVERT_IOCTL;
 
 /*
- * WinDivert IOCTL structures.
+ * WinDivert initialization structure.
  */
 typedef struct
 {
-    UINT8  field;                   // WINDIVERT_FILTER_FIELD_*
-    UINT8  test;                    // WINDIVERT_FILTER_TEST_*
-    UINT8  success;                 // Success continuation.
-    UINT8  failure;                 // Fail continuation.
+    UINT64 magic;                   // Magic number (in/out).
+    UINT32 major;                   // Driver major version (in/out).
+    UINT32 minor;                   // Driver minor version (in/out).
+    UINT32 bits;                    // 32 or 64 (in/out).
+    UINT32 reserved32[3];
+    UINT64 reserved64[4];
+} WINDIVERT_VERSION, *PWINDIVERT_VERSION;
+
+/*
+ * WinDivert filter structure.
+ */
+typedef struct
+{
+    UINT32 field:11;                // WINDIVERT_FILTER_FIELD_*
+    UINT32 test:5;                  // WINDIVERT_FILTER_TEST_*
+    UINT32 success:16;              // Success continuation.
+    UINT32 failure:16;              // Fail continuation.
+    UINT32 neg:1;                   // Argument negative?
+    UINT32 reserved:15;
     UINT32 arg[4];                  // Argument.
 } WINDIVERT_FILTER, *PWINDIVERT_FILTER;
 #pragma pack(pop)
@@ -258,30 +300,24 @@ typedef struct
 /*
  * IOCTL codes.
  */
-#define IOCTL_WINDIVERT_SHUTDOWN                                            \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x917, METHOD_IN_DIRECT, FILE_READ_DATA | \
+#define IOCTL_WINDIVERT_INITIALIZE                                          \
+    CTL_CODE(FILE_DEVICE_NETWORK, 0x921, METHOD_OUT_DIRECT, FILE_READ_DATA |\
+        FILE_WRITE_DATA)
+#define IOCTL_WINDIVERT_STARTUP                                             \
+    CTL_CODE(FILE_DEVICE_NETWORK, 0x922, METHOD_IN_DIRECT, FILE_READ_DATA | \
         FILE_WRITE_DATA)
 #define IOCTL_WINDIVERT_RECV                                                \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x918, METHOD_OUT_DIRECT, FILE_READ_DATA)
+    CTL_CODE(FILE_DEVICE_NETWORK, 0x923, METHOD_OUT_DIRECT, FILE_READ_DATA)
 #define IOCTL_WINDIVERT_SEND                                                \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x919, METHOD_IN_DIRECT, FILE_READ_DATA | \
-        FILE_WRITE_DATA)
-#define IOCTL_WINDIVERT_START_FILTER                                        \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x91A, METHOD_IN_DIRECT, FILE_READ_DATA | \
-        FILE_WRITE_DATA)
-#define IOCTL_WINDIVERT_SET_LAYER                                           \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x91B, METHOD_IN_DIRECT, FILE_READ_DATA | \
-        FILE_WRITE_DATA)
-#define IOCTL_WINDIVERT_SET_PRIORITY                                        \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x91C, METHOD_IN_DIRECT, FILE_READ_DATA | \
-        FILE_WRITE_DATA)
-#define IOCTL_WINDIVERT_SET_FLAGS                                           \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x91D, METHOD_IN_DIRECT, FILE_READ_DATA | \
+    CTL_CODE(FILE_DEVICE_NETWORK, 0x924, METHOD_IN_DIRECT, FILE_READ_DATA | \
         FILE_WRITE_DATA)
 #define IOCTL_WINDIVERT_SET_PARAM                                           \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x91E, METHOD_IN_DIRECT, FILE_READ_DATA | \
+    CTL_CODE(FILE_DEVICE_NETWORK, 0x925, METHOD_IN_DIRECT, FILE_READ_DATA | \
         FILE_WRITE_DATA)
 #define IOCTL_WINDIVERT_GET_PARAM                                           \
-    CTL_CODE(FILE_DEVICE_NETWORK, 0x91F, METHOD_OUT_DIRECT, FILE_READ_DATA)
+    CTL_CODE(FILE_DEVICE_NETWORK, 0x926, METHOD_OUT_DIRECT, FILE_READ_DATA)
+#define IOCTL_WINDIVERT_SHUTDOWN                                            \
+    CTL_CODE(FILE_DEVICE_NETWORK, 0x927, METHOD_IN_DIRECT, FILE_READ_DATA | \
+        FILE_WRITE_DATA)
 
 #endif      /* __WINDIVERT_DEVICE_H */

inf/windivert32.inf

@@ -23,12 +23,6 @@ CopyFiles = WinDivertCalloutDriver.DriverFiles
 [DefaultInstall.Services]
 AddService = %ServiceName%,,WinDivertCalloutDriver.Service
 
-[DefaultUninstall]
-DelFiles = WinDivertCalloutDriver.DriverFiles
-
-[DefaultUninstall.Services]
-DelService = WinDivertCalloutDriver,0x200 ; SPSVCINST_STOPSERVICE
-
 [WinDivertCalloutDriver.DriverFiles]
 WinDivert32.sys,,,0x00000040 ; COPYFLG_OVERWRITE_OLDER_ONLY
 
@@ -41,8 +35,8 @@ ErrorControl = 1 ; SERVICE_ERROR_NORMAL
 ServiceBinary = %12%\WinDivert32.sys
 
 [Strings]
-%Basil% = "Basil"
-%DiskName% = "WinDivert Installation Disk"
-%Description% = "WinDivert Driver"
-%ServiceName% = "WinDivert"
-%ServiceDesc% = "WinDivert Driver"
+Basil = "Basil"
+DiskName = "WinDivert Installation Disk"
+Description = "WinDivert Driver"
+ServiceName = "WinDivert"
+ServiceDesc = "WinDivert Driver"

inf/windivert64.inf

@@ -23,12 +23,6 @@ CopyFiles = WinDivertCalloutDriver.DriverFiles
 [DefaultInstall.Services]
 AddService = %ServiceName%,,WinDivertCalloutDriver.Service
 
-[DefaultUninstall]
-DelFiles = WinDivertCalloutDriver.DriverFiles
-
-[DefaultUninstall.Services]
-DelService = WinDivertCalloutDriver,0x200 ; SPSVCINST_STOPSERVICE
-
 [WinDivertCalloutDriver.DriverFiles]
 WinDivert64.sys,,,0x00000040 ; COPYFLG_OVERWRITE_OLDER_ONLY
 
@@ -41,8 +35,8 @@ ErrorControl = 1 ; SERVICE_ERROR_NORMAL
 ServiceBinary = %12%\WinDivert64.sys
 
 [Strings]
-%Basil% = "Basil"
-%DiskName% = "WinDivert Installation Disk"
-%Description% = "WinDivert Driver"
-%ServiceName% = "WinDivert"
-%ServiceDesc% = "WinDivert Driver"
+Basil = "Basil"
+DiskName = "WinDivert Installation Disk"
+Description = "WinDivert Driver"
+ServiceName = "WinDivert"
+ServiceDesc = "WinDivert Driver"

mingw-build.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 # mingw-build.sh
-# (C) 2018, all rights reserved,
+# (C) 2019, all rights reserved,
 #
 # This file is part of WinDivert.
 #
@@ -39,6 +39,11 @@ set -e
 
 ENVS="i686-w64-mingw32 x86_64-w64-mingw32"
 
+if [ "$1" = "debug" ]
+then
+    MSVCRT=-lmsvcrt
+fi 
+
 for ENV in $ENVS
 do
     if [ $ENV = "i686-w64-mingw32" ]
@@ -51,17 +56,17 @@ do
         BITS=64
         MANGLE=
     fi
+    HAVE_SYS=yes
     if [ ! -d install/WDDK/$CPU ]
     then
         echo "WARNING: missing WDDK build; run wddk-build.bat first"
-        echo "SKIP MINGW-$CPU"
-        continue
+        HAVE_SYS=no
     fi
     echo "BUILD MINGW-$CPU"
     CC="$ENV-gcc"
     COPTS="-fno-ident -shared -Wall -Wno-pointer-to-int-cast -Os -Iinclude/ 
         -Wl,--enable-stdcall-fixup -Wl,--entry=${MANGLE}WinDivertDllEntry"
-    CLIBS="-lgcc -lkernel32 -ladvapi32"
+    CLIBS="-lkernel32 -ladvapi32 $MSVCRT"
     STRIP="$ENV-strip"
     DLLTOOL="$ENV-dlltool"
     if [ -x "`which $CC`" ]
@@ -97,20 +102,27 @@ do
         $CC -s -O2 -Iinclude/ examples/streamdump/streamdump.c \
             -o "install/MINGW/$CPU/streamdump.exe" -lWinDivert -lws2_32 \
             -L"install/MINGW/$CPU/"
-        echo "\tcopy install/MINGW/$CPU/flowtrack.exe..."
+        echo "\tbuild install/MINGW/$CPU/flowtrack.exe..."
         $CC -s -O2 -Iinclude/ examples/flowtrack/flowtrack.c \
             -o "install/MINGW/$CPU/flowtrack.exe" -lWinDivert -lpsapi \
             -lshlwapi -L"install/MINGW/$CPU/"
-        echo "\tcopy install/MINGW/$CPU/windivertctl.exe..."
+        echo "\tbuild install/MINGW/$CPU/windivertctl.exe..."
         $CC -s -O2 -Iinclude/ examples/windivertctl/windivertctl.c \
             -o "install/MINGW/$CPU/windivertctl.exe" -lWinDivert \
             -lpsapi -lshlwapi -L"install/MINGW/$CPU/"
-        echo "\tcopy install/MINGW/$CPU/socketdump.exe..."
+        echo "\tbuild install/MINGW/$CPU/socketdump.exe..."
         $CC -s -O2 -Iinclude/ examples/socketdump/socketdump.c \
             -o "install/MINGW/$CPU/socketdump.exe" -lWinDivert \
             -lpsapi -lshlwapi -L"install/MINGW/$CPU/"
-        echo "\tcopy install/MINGW/$CPU/WinDivert$BITS.sys..."
-        cp install/WDDK/$CPU/WinDivert$BITS.sys install/MINGW/$CPU
+        echo "\tbuild install/MINGW/$CPU/test.exe..."
+        $CC -s -O2 -Iinclude/ test/test.c \
+            -o "install/MINGW/$CPU/test.exe" -lWinDivert \
+            -L"install/MINGW/$CPU/"
+        if [ $HAVE_SYS = yes ]
+        then
+            echo "\tcopy install/MINGW/$CPU/WinDivert$BITS.sys..."
+            cp install/WDDK/$CPU/WinDivert$BITS.sys install/MINGW/$CPU
+        fi
     else
         echo "WARNING: $CC not found"
     fi

msvc-build.bat

@@ -0,0 +1,150 @@
+:: msvc-build.bat
+:: (C) 2019, all rights reserved,
+::
+:: This file is part of WinDivert.
+::
+:: WinDivert is free software: you can redistribute it and/or modify it under
+:: the terms of the GNU Lesser General Public License as published by the
+:: Free Software Foundation, either version 3 of the License, or (at your
+:: option) any later version.
+::
+:: This program is distributed in the hope that it will be useful, but
+:: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+:: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+:: License for more details.
+::
+:: You should have received a copy of the GNU Lesser General Public License
+:: along with this program.  If not, see <http://www.gnu.org/licenses/>.
+::
+:: WinDivert is free software; you can redistribute it and/or modify it under
+:: the terms of the GNU General Public License as published by the Free
+:: Software Foundation; either version 2 of the License, or (at your option)
+:: any later version.
+:: 
+:: This program is distributed in the hope that it will be useful, but
+:: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+:: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+:: for more details.
+:: 
+:: You should have received a copy of the GNU General Public License along
+:: with this program; if not, write to the Free Software Foundation, Inc., 51
+:: Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+@echo off
+
+msbuild sys\windivert.vcxproj ^
+    /p:Configuration=Release ^
+    /p:platform=Win32 ^
+    /p:SignMode=Off ^
+    /p:OutDir=..\install\MSVC\i386\ ^
+    /p:AssemblyName=WinDivert32
+
+msbuild sys\windivert.vcxproj ^
+    /p:Configuration=Release ^
+    /p:platform=x64 ^
+    /p:SignMode=Off ^
+    /p:OutDir=..\install\MSVC\amd64\ ^
+    /p:AssemblyName=WinDivert64
+
+msbuild dll\windivert.vcxproj ^
+    /p:Configuration=Release ^
+    /p:platform=Win32 ^
+    /p:OutDir=..\install\MSVC\i386\
+move dll\WinDivert.lib install\MSVC\i386\.
+
+msbuild dll\windivert.vcxproj ^
+    /p:Configuration=Release ^
+    /p:platform=x64 ^
+    /p:OutDir=..\install\MSVC\amd64\
+move dll\WinDivert.lib install\MSVC\amd64\.
+
+msbuild examples\flowtrack\flowtrack.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\flowtrack\flowtrack.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild examples\netdump\netdump.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\netdump\netdump.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild examples\netfilter\netfilter.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\netfilter\netfilter.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild examples\passthru\passthru.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\passthru\passthru.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild examples\socketdump\socketdump.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\socketdump\socketdump.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild examples\streamdump\streamdump.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\streamdump\streamdump.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild examples\webfilter\webfilter.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\webfilter\webfilter.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild examples\windivertctl\windivertctl.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\..\install\MSVC\i386\
+
+msbuild examples\windivertctl\windivertctl.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\..\install\MSVC\amd64\
+
+msbuild test\test.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=Win32 ^
+    /p:OutDir=..\install\MSVC\i386\
+
+msbuild test\test.vcxproj ^
+    /p:Configuration=Release ^
+    /p:Platform=x64 ^
+    /p:OutDir=..\install\MSVC\amd64\
+

release-build.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 # release-build.sh
-# (C) 2018, all rights reserved,
+# (C) 2019, all rights reserved,
 #
 # This file is part of WinDivert.
 #
@@ -37,99 +37,129 @@
 
 set -e
 
+LABEL=
+if [ $# -ge 1 ]
+then
+    LABEL="-$1"
+fi
+
+TARGET=MINGW
+
+WINDIVERT32_SYS=install/$TARGET/i386/WinDivert32.sys
+if [ $# -ge 2 ]
+then
+    WINDIVERT32_SYS=$2
+fi
+
+WINDIVERT64_SYS=install/$TARGET/amd64/WinDivert64.sys
+if [ $# -ge 3 ]
+then
+    WINDIVERT64_SYS=$3
+fi
+
 VERSION=`cat ./VERSION`
 NAME=WinDivert-$VERSION
 
-for TARGET in MINGW
-do
-    if [ ! -d "install/$TARGET" ]
+echo "BUILD $NAME$LABEL"
+INSTALL=install/$NAME$LABEL
+echo "\tmake $INSTALL..."
+rm -rf $INSTALL
+mkdir -p $INSTALL
+echo "\tcopy $INSTALL/README..."
+cp README $INSTALL
+echo "\tcopy $INSTALL/CHANGELOG..."
+cp CHANGELOG $INSTALL
+echo "\tcopy $INSTALL/LICENSE..."
+cp LICENSE $INSTALL
+echo "\tcopy $INSTALL/VERSION..."
+cp VERSION $INSTALL
+echo "\tmake $INSTALL/include..."
+mkdir -p $INSTALL/include
+echo "\tcopy $INSTALL/include/windivert.h..."
+cp include/windivert.h $INSTALL/include
+echo "\tmake $INSTALL/doc..."
+mkdir -p $INSTALL/doc
+echo "\tcopy $INSTALL/doc/WinDivert.html..."
+cp doc/windivert.html $INSTALL/doc/WinDivert.html
+echo "\tmake $INSTALL/x86..."
+mkdir -p $INSTALL/x86
+echo "\tcopy $INSTALL/x86/WinDivert32.sys..."
+cp "$WINDIVERT32_SYS" $INSTALL/x86
+if ! grep "DigiCert High Assurance EV Root" $INSTALL/x86/WinDivert32.sys \
+    2>&1 >/dev/null
+then
+    echo "\t\033[33mWARNING\033[0m: unsigned WinDivert32.sys..."
+fi
+if [ -e "$WINDIVERT64_SYS" ]
+then
+    echo "\tcopy $INSTALL/x64/WinDivert64.sys..."
+    cp "$WINDIVERT64_SYS" $INSTALL/x86
+fi
+echo "\tcopy $INSTALL/x86/WinDivert.lib..."
+cp install/$TARGET/i386/WinDivert.lib $INSTALL/x86
+echo "\tcopy $INSTALL/x86/WinDivert.dll..."
+cp install/$TARGET/i386/WinDivert.dll $INSTALL/x86
+echo "\tcopy $INSTALL/x86/netdump.exe..."
+cp install/$TARGET/i386/netdump.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/netfilter.exe..."
+cp install/$TARGET/i386/netfilter.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/passtru.exe..."
+cp install/$TARGET/i386/passthru.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/webfilter.exe..."
+cp install/$TARGET/i386/webfilter.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/streamdump.exe..."
+cp install/$TARGET/i386/streamdump.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/flowtrack.exe..."
+cp install/$TARGET/i386/flowtrack.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/socketdump.exe..."
+cp install/$TARGET/i386/socketdump.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/windivertctl.exe..."
+cp install/$TARGET/i386/windivertctl.exe $INSTALL/x86
+echo "\tcopy $INSTALL/x86/test.exe..."
+cp install/$TARGET/i386/test.exe $INSTALL/x86
+if [ -d "install/$TARGET/amd64" ]
+then
+    echo "\tmake $INSTALL/amd64..."
+    mkdir -p $INSTALL/x64
+    echo "\tcopy $INSTALL/amd64/WinDivert64.sys..."
+    cp "$WINDIVERT64_SYS" $INSTALL/x64
+    if ! grep "DigiCert High Assurance EV Root" \
+        $INSTALL/x64/WinDivert64.sys 2>&1 >/dev/null
     then
-        echo "SKIP $NAME-$TARGET"
-        continue
+        echo "\t\033[33mWARNING\033[0m: unsigned WinDivert64.sys..."
     fi
-    echo "BUILD $NAME"
-    INSTALL=install/$NAME
-    echo "\tmake $INSTALL..."
-    mkdir -p $INSTALL
-    echo "\tcopy $INSTALL/README..."
-    cp README $INSTALL
-    echo "\tcopy $INSTALL/CHANGELOG..."
-    cp CHANGELOG $INSTALL
-    echo "\tcopy $INSTALL/LICENSE..."
-    cp LICENSE $INSTALL
-    echo "\tcopy $INSTALL/VERSION..."
-    cp VERSION $INSTALL
-    echo "\tmake $INSTALL/include..."
-    mkdir -p $INSTALL/include
-    echo "\tcopy $INSTALL/include/windivert.h..."
-    cp include/windivert.h $INSTALL/include
-    echo "\tmake $INSTALL/doc..."
-    mkdir -p $INSTALL/doc
-    echo "\tcopy $INSTALL/doc/WinDivert.html..."
-    cp doc/windivert.html $INSTALL/doc/WinDivert.html
-    echo "\tmake $INSTALL/x86..."
-    mkdir -p $INSTALL/x86
-    echo "\tcopy $INSTALL/x86/WinDivert32.sys..."
-    cp install/$TARGET/i386/WinDivert32.sys $INSTALL/x86
-    if ! grep "DigiCert High Assurance EV Root" $INSTALL/x86/WinDivert32.sys \
-        2>&1 >/dev/null
-    then
-        echo "\t\033[33mWARNING\033[0m: unsigned WinDivert32.sys..."
-    fi
-    echo "\tcopy $INSTALL/x86/WinDivert.lib..."
-    cp install/$TARGET/i386/WinDivert.lib $INSTALL/x86
-    echo "\tcopy $INSTALL/x86/WinDivert.dll..."
-    cp install/$TARGET/i386/WinDivert.dll $INSTALL/x86
-    echo "\tcopy $INSTALL/x86/netdump.exe..."
-    cp install/$TARGET/i386/netdump.exe $INSTALL/x86
-    echo "\tcopy $INSTALL/x86/netfilter.exe..."
-    cp install/$TARGET/i386/netfilter.exe $INSTALL/x86
-    echo "\tcopy $INSTALL/x86/passtru.exe..."
-    cp install/$TARGET/i386/passthru.exe $INSTALL/x86
-    echo "\tcopy $INSTALL/x86/webfilter.exe..."
-    cp install/$TARGET/i386/webfilter.exe $INSTALL/x86
-    echo "\tcopy $INSTALL/x86/streamdump.exe..."
-    cp install/$TARGET/i386/streamdump.exe $INSTALL/x86
-    echo "\tcopy $INSTALL/i386/flowtrack.exe..."
-    cp install/$TARGET/i386/flowtrack.exe $INSTALL/amd64
-    if [ -d "install/$TARGET/amd64" ]
-    then
-        echo "\tmake $INSTALL/amd64..."
-        mkdir -p $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/WinDivert64.sys..."
-        cp install/$TARGET/amd64/WinDivert64.sys $INSTALL/amd64
-        if ! grep "DigiCert High Assurance EV Root" \
-            $INSTALL/amd64/WinDivert64.sys 2>&1 >/dev/null
-        then
-            echo -e "\t\033[33mWARNING\033[0m: unsigned WinDivert64.sys..."
-        fi
-        echo "\tcopy $INSTALL/amd64/WinDivert.lib..."
-        cp install/$TARGET/amd64/WinDivert.lib $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/WinDivert.dll..."
-        cp install/$TARGET/amd64/WinDivert.dll $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/netdump.exe..."
-        cp install/$TARGET/amd64/netdump.exe $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/netfilter.exe..."
-        cp install/$TARGET/amd64/netfilter.exe $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/passtru.exe..."
-        cp install/$TARGET/amd64/passthru.exe $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/webfilter.exe..."
-        cp install/$TARGET/amd64/webfilter.exe $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/streamdump.exe..."
-        cp install/$TARGET/amd64/streamdump.exe $INSTALL/amd64
-        echo "\tcopy $INSTALL/amd64/flowtrack.exe..."
-        cp install/$TARGET/amd64/flowtrack.exe $INSTALL/amd64
-    else
-        echo "\tWARNING: skipping missing AMD64 build..."
-    fi
-    PACKAGE=$NAME.zip
-    echo "\tbuilding $PACKAGE..."
-    (
-        cd install;
-        zip -r $PACKAGE $NAME > /dev/null
-    )
-    echo -n "\tclean $INSTALL..."
-    rm -rf $INSTALL
-    echo "DONE"
-done
+    echo "\tcopy $INSTALL/x64/WinDivert.lib..."
+    cp install/$TARGET/amd64/WinDivert.lib $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/WinDivert.dll..."
+    cp install/$TARGET/amd64/WinDivert.dll $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/netdump.exe..."
+    cp install/$TARGET/amd64/netdump.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/netfilter.exe..."
+    cp install/$TARGET/amd64/netfilter.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/passtru.exe..."
+    cp install/$TARGET/amd64/passthru.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/webfilter.exe..."
+    cp install/$TARGET/amd64/webfilter.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/streamdump.exe..."
+    cp install/$TARGET/amd64/streamdump.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/flowtrack.exe..."
+    cp install/$TARGET/amd64/flowtrack.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/socketdump.exe..."
+    cp install/$TARGET/amd64/socketdump.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/windivertctl.exe..."
+    cp install/$TARGET/amd64/windivertctl.exe $INSTALL/x64
+    echo "\tcopy $INSTALL/x64/test.exe..."
+    cp install/$TARGET/amd64/test.exe $INSTALL/x64
+else
+    echo "\tWARNING: skipping missing AMD64 build..."
+fi
+PACKAGE=$NAME$LABEL.zip
+echo "\tbuilding $PACKAGE..."
+(
+    cd install;
+    zip -r $PACKAGE $NAME$LABEL > /dev/null
+)
+echo -n "\tclean $INSTALL..."
+rm -rf $INSTALL
+echo "DONE"
 

sys/windivert.rc

@@ -1,6 +1,6 @@
 /*
  * windivert.rc
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -38,7 +38,7 @@
 #define VER_FILETYPE                VFT_DRV
 #define VER_FILESUBTYPE             VFT2_DRV_NETWORK
 #define VER_FILEDESCRIPTION_STR     \
-    "The WinDivert driver " \
+    "The WinDivert 2.0 driver " \
     "[URL: https://reqrypt.org/windivert.html] " \
     "[Bitcoin: 1C5vZVSbizPeZ8ydTYhUfm4LA2cNwBfcYh]"
 #define VER_INTERNALNAME_STR        "WinDivert.sys"

sys/windivert.vcxproj

@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    windivert.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="windivert.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MaxSpeed</Optimization>
+   <AdditionalIncludeDirectories>..\include;..\dll</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+  <MinimumVisualStudioVersion>12.0</MinimumVisualStudioVersion>
+  <RootNamespace>WinDivert</RootNamespace>
+  <ProjectName>WinDivert</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <TargetVersion>Windows7</TargetVersion>
+  <UseDebugLibraries>true</UseDebugLibraries>
+  <PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
+  <ConfigurationType>Driver</ConfigurationType>
+  <DriverType>KMDF</DriverType>
+  <DriverTargetPlatform>Desktop</DriverTargetPlatform>
+  <DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
+  <EnableInf2cat>false</EnableInf2cat>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <ClCompile>
+   <WppEnabled>false</WppEnabled>
+   <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">_X86_=1;i386=1;STD_CALL;%(PreprocessorDefinitions);NDIS60;UNICODE;_UNICODE;NDIS_SUPPORT_NDIS60;NT;BINARY_COMPATIBLE=0</PreprocessorDefinitions>
+   <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">_WIN64;_AMD64_;AMD64;%(PreprocessorDefinitions);NDIS60;UNICODE;_UNICODE;NDIS_SUPPORT_NDIS60;NT;BINARY_COMPATIBLE=0</PreprocessorDefinitions>
+  </ClCompile>
+  <Link>
+   <AdditionalDependencies>%(AdditionalDependencies);$(KernelBufferOverflowLib);$(DDK_LIB_PATH)ntoskrnl.lib;$(DDK_LIB_PATH)hal.lib;$(DDK_LIB_PATH)wmilib.lib;$(KMDF_LIB_PATH)$(KMDF_VER_PATH)\WdfLdr.lib;$(KMDF_LIB_PATH)$(KMDF_VER_PATH)\WdfDriverEntry.lib;$(DDK_LIB_PATH)\wdmsec.lib;$(DDK_LIB_PATH)\ndis.lib;$(DDK_LIB_PATH)\fwpkclnt.lib;$(SDK_LIB_PATH)\uuid.lib</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

test/build.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 # build.sh
-# (C) 2018, all rights reserved,
+# (C) 2019, all rights reserved,
 #
 # This file is part of WinDivert.
 #
@@ -35,8 +35,11 @@
 # Script for MinGW/Linux cross compilation.
 # NOTE: run wddk-build.bat before this script.
 
+CC=i686-w64-mingw32-gcc
+$CC -fno-ident -s -O2 -I../include/ test.c \
+    -o ../install/MINGW/i386/test.exe -lWinDivert -L"../install/MINGW/i386/" 
+
 CC=x86_64-w64-mingw32-gcc
-
-$CC -fno-ident -s -O2 -I../include/ test.c -o test.exe -lWinDivert \
-    -L"../install/MINGW/amd64/"
+$CC -fno-ident -s -O2 -I../include/ test.c -o ../install/MINGW/amd64/test.exe \
+    -lWinDivert -L"../install/MINGW/amd64/"
 

test/test.c

@@ -1,6 +1,6 @@
 /*
  * test.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *
@@ -71,6 +71,7 @@ struct test
  */
 static BOOL run_test(HANDLE inject_handle, const char *filter,
     const char *packet, const size_t packet_len, BOOL match, INT64 *diff);
+static DWORD monitor_worker(LPVOID arg);
 
 /*
  * Test data.
@@ -152,6 +153,8 @@ static const struct test tests[] =
     {"ip or ipv6",                             &pkt_echo_request, TRUE},
     {"inbound",                                &pkt_echo_request, FALSE},
     {"tcp",                                    &pkt_echo_request, FALSE},
+    {"tcp == TRUE",                            &pkt_echo_request, FALSE},
+    {"tcp == FALSE",                           &pkt_echo_request, TRUE},
     {"icmp.Type == 8",                         &pkt_echo_request, TRUE},
     {"icmp.Type == 9",                         &pkt_echo_request, FALSE},
     {"(tcp? ip.Checksum == 0: icmp)",          &pkt_echo_request, TRUE},
@@ -255,7 +258,59 @@ static const struct test tests[] =
     {"(((icmp)? (true): (false)) and "
      "(((tcp)? (false): (true)) and "
      "((ipv6)? (false): (true))))",            &pkt_echo_request, TRUE},
+    {"((((packet[31] > 0x54 or (packet[46] == 0x12 and "
+     "not packet[78] >= 0x32)) and (not packet[79] <= 0x33 and "
+     "not packet[81] > 0x35)) and (((not packet[62] <= 0x22 and "
+     "not packet[54] <= 0x1A) and (not packet[69] <= 0x29 or "
+     "packet[55] > 0x1B)) or ((not packet[78] != 0x32 and "
+     "packet[22] != 0x3C)? (not packet[11] <= 0x00? packet[7] >= 0x00: "
+     "packet[67] >= 0x27): (packet[1] < 0x00? not packet[49] == 0x15: "
+     "not packet[44] != 0x10))))? ((((not packet[11] > 0x00 and "
+     "not packet[62] <= 0x22) or (packet[7] < 0x00? packet[23] < 0xD2: "
+     "not packet[10] != 0x00)) and not packet[74] != 0x2E) or "
+     "packet[43] >= 0x00): ((((packet[3] == 0x54? packet[19] == 0x08: "
+     "packet[8] > 0x40) or not packet[80] > 0x34)? ((packet[9] >= 0x01? "
+     "packet[5] != 0x34: packet[61] > 0x21) or (packet[44] > 0x10 and "
+     "packet[63] < 0x23)): ((packet[80] <= 0x34 or not packet[78] < 0x32)? "
+     "(packet[19] != 0x08? packet[40] == 0x00: not packet[71] == 0x2B): "
+     "(not packet[39] < 0x00 or packet[38] != 0x0A))) or "
+     "(((not packet[81] > 0x35 and packet[22] <= 0x3C)? "
+     "(not packet[60] != 0x20? packet[28] < 0x8B: not packet[74] != 0x2E): "
+     "packet[8] <= 0x40) or ((packet[60] == 0x20? packet[57] <= 0x1D: "
+     "packet[24] >= 0x0D)? (packet[34] > 0x00 or not packet[53] < 0x19): "
+     "(packet[11] < 0x00 and packet[35] != 0x00)))))",
+                                               &pkt_echo_request, TRUE},
+    {"(((((packet[23] <= 0xD2 and not packet[1] >= 0x00)? "
+     "(packet[3] != 0x54 or packet[45] >= 0x11): (packet[4] > 0x12 and "
+     "packet[2] != 0x00)) or packet[24] > 0x0D) or (((not packet[57] > 0x1D? "
+     "packet[62] == 0x22: not packet[12] < 0x0A) or (packet[28] > 0x8B? "
+     "not packet[48] > 0x14: not packet[64] > 0x24)) or ((packet[80] >= 0x34? "
+     "not packet[3] != 0x54: not packet[26] <= 0x00) and "
+     "(packet[68] != 0x28 and packet[32] == 0x00))))? not packet[1] == 0x00: "
+     "((((not packet[36] > 0xF9 and not packet[70] == 0x2A) or "
+     "(not packet[3] <= 0x54? packet[1] > 0x00: not packet[14] != 0x00)) and "
+     "packet[57] <= 0x1D)? packet[38] == 0x0A: (((not packet[59] != 0x1F? "
+     "packet[46] < 0x12: not packet[81] < 0x35) and (packet[27] >= 0x01? "
+     "not packet[50] > 0x16: not packet[7] <= 0x00))? ((packet[76] >= 0x30 or "
+     "not packet[54] >= 0x1A) and packet[64] < 0x24): "
+     "((packet[58] <= 0x1E and packet[81] < 0x35)? (packet[20] < 0x08 or "
+     "packet[22] <= 0x3C): (not packet[70] >= 0x2A? packet[31] < 0x54: "
+     "not packet[69] <= 0x29)))))",            &pkt_echo_request, FALSE},
+    {"ip.HdrLength == 5 and ip.TOS == 0 and ip.Length == 84 and "
+     "ip.Id == 0x1234 and ip.FragOff == 0 and ip.MF == 0 and ip.DF == 1 and "
+     "ip.TTL == 64 and ip.Protocol == 1 and ip.SrcAddr == 0xFFFF0A000001 and "
+     "ip.DstAddr == 0xFFFF08080808 and icmp.Type == 8 and icmp.Code == 0 and "
+     "icmp.Body == 0x0D560001",                &pkt_echo_request, TRUE},
+    {"ip.HdrLength > 5 or ip.TOS > 0 or ip.Length != 84 or ip.Id < 0x1234 or "
+     "ip.FragOff != 0 or ip.MF < 0 or ip.DF != 1 or ip.TTL > 64 or "
+     "ip.Protocol != 1 or ip.SrcAddr < 0xFFFF0A000001 or "
+     "ip.DstAddr < 0xFFFF08080808 or icmp.Type != 8 or icmp.Code != 0 or "
+     "icmp.Body != 0x0D560001",                &pkt_echo_request, FALSE},
+    {"localAddr == 10.0.0.1 && remoteAddr == 8.8.8.8 && localPort == 8 && "
+     "remotePort == 0 && protocol == 1",       &pkt_echo_request, TRUE},
+    {"packet[0] == 0x45",                      &pkt_echo_request, TRUE},
     {"tcp",                                    &pkt_http_request, TRUE},
+    {"protocol == TCP",                        &pkt_http_request, TRUE},
     {"outbound and tcp and tcp.DstPort == 80", &pkt_http_request, TRUE},
     {"outbound and tcp and tcp.DstPort == 81", &pkt_http_request, FALSE},
     {"outbound and tcp and tcp.DstPort != 80", &pkt_http_request, FALSE},
@@ -341,15 +396,119 @@ static const struct test tests[] =
      "packet[-1] = 0x0a",                      &pkt_http_request, TRUE},
     {"tcp.Payload16[-1] == 0x0d0a",            &pkt_http_request, TRUE},
     {"tcp.Payload32[-2] == 0x20474d54",        &pkt_http_request, TRUE},
+    {"(ipv6? true: false) or (udp? udp.DstPort != 53: false) or "
+     "(not tcp and not udp? true: false)",     &pkt_http_request, FALSE},
+    {"ip and !loopback and (outbound? tcp.DstPort == 80 or"
+     " tcp.DstPort == 443 or udp.DstPort == 53 :"
+     " icmp.Type == 11 and icmp.Code == 0)",   &pkt_http_request, TRUE},
     {"random8 < 128",                          &pkt_http_request, TRUE},
     {"(random8 < 128? random16 < 0x8000: random32 < 0x80000000)",
                                                &pkt_http_request, TRUE},
     {"(random32 < 0x22223333? packet32[72] == 0x58585858: udp)",
                                                &pkt_http_request, TRUE},
+    {"(((((not packet[340] != 0x58? not packet[173] < 0x74: "
+     "not packet[376] > 0x70) or not packet[87] != 0x6F) or "
+     "not packet[226] > 0x73) and (((not packet[289] <= 0x58 and "
+     "not packet[76] > 0x77) and (packet[231] < 0x67 and "
+     "not packet[24] < 0x53))? ((packet[365] > 0x58? not packet[91] <= 0x43: "
+     "not packet[310] <= 0x58) or (not packet[515] < 0x4D or "
+     "packet[518] >= 0x0A)): ((not packet[209] < 0x77? "
+     "not packet[237] > 0x58: not packet[286] == 0x58)? "
+     "(packet[354] == 0x58 or packet[502] > 0x31): not packet[2] > 0x02)))? "
+     "(((packet[520] <= 0x0A? (packet[484] == 0x63 and packet[83] >= 0x6C): "
+     "(packet[384] >= 0x69 or packet[245] >= 0x58)) and "
+     "(packet[106] > 0x70 or packet[45] != 0x2C))? (((packet[153] == 0x2F or "
+     "packet[139] >= 0x0D) and (packet[136] != 0x65? packet[100] == 0x6E: "
+     "not packet[128] == 0x3A))? ((not packet[288] != 0x58 or "
+     "not packet[309] == 0x58) and packet[350] <= 0x58): "
+     "not packet[129] >= 0x20): (not packet[493] != 0x30 and "
+     "((packet[465] != 0x33 or not packet[386] >= 0x67)? "
+     "(packet[470] >= 0x66 or not packet[259] >= 0x58): "
+     "packet[408] != 0x41))): ((((not packet[500] > 0x32 or "
+     "not packet[163] < 0x69) and not packet[122] == 0x6F) and "
+     "((packet[324] <= 0x58 and packet[481] > 0x53)? "
+     "(not packet[17] > 0xB8 and packet[102] != 0x20): (packet[303] > 0x58 or "
+     "packet[345] >= 0x58)))? (packet[191] < 0x6E and ((packet[429] <= 0x53? "
+     "not packet[239] >= 0x58: packet[258] < 0x58)? packet[382] >= 0x6F: "
+     "(packet[443] == 0x2D? not packet[67] < 0x0A: packet[168] <= 0x6F))): "
+     "(((packet[34] == 0x00 and not packet[77] != 0x2E)? "
+     "(packet[27] != 0xC2? not packet[477] <= 0x69: not packet[472] != 0x4D): "
+     "(not packet[157] >= 0x6C or not packet[308] <= 0x58)) or "
+     "((not packet[293] == 0x58? not packet[83] != 0x6C: packet[70] > 0x73)? "
+     "(not packet[260] < 0x58? packet[98] != 0x69: not packet[226] <= 0x73): "
+     "(packet[139] < 0x0D and not packet[171] == 0x78)))))",
+                                                &pkt_http_request, FALSE},
+    {"(((((packet[307] > 0x58 or packet[437] == 0x2E)? (packet[331] <= 0x58? "
+     "packet[39] != 0x00: not packet[503] > 0x34): not packet[248] >= 0x58)? "
+     "((not packet[266] >= 0x58? packet[510] != 0x3A: "
+     "not packet[343] == 0x58)? (not packet[183] == 0x70 and "
+     "not packet[333] <= 0x58): (packet[456] >= 0x22? packet[400] <= 0x65: "
+     "not packet[218] <= 0x71)): (packet[482] <= 0x69? "
+     "(packet[288] > 0x58 and packet[142] == 0x63): (packet[8] >= 0x40 or "
+     "not packet[211] == 0x62))) or ((packet[267] <= 0x58 and "
+     "(packet[35] != 0x73? packet[36] == 0x02: not packet[100] > 0x6E)) and "
+     "(not packet[170] > 0x2F and (not packet[289] != 0x58 and "
+     "not packet[344] < 0x58)))) or ((((not packet[468] > 0x0A and "
+     "not packet[372] >= 0x41) and (packet[513] < 0x20 or "
+     "packet[306] == 0x58)) or ((not packet[431] <= 0x65 and "
+     "not packet[144] < 0x65)? (packet[478] != 0x65? packet[37] <= 0xA4: "
+     "not packet[26] < 0xCC): (not packet[269] != 0x58 and "
+     "packet[149] != 0x74)))? (((packet[422] <= 0x65 and "
+     "not packet[176] > 0x2B) and (not packet[417] > 0x6E? "
+     "not packet[451] <= 0x74: packet[348] >= 0x58)) and "
+     "packet[284] != 0x58): (((packet[200] < 0x2E and packet[89] < 0x0D) or "
+     "(packet[469] == 0x49 and not packet[384] == 0x69))? "
+     "((not packet[105] >= 0x65 or packet[128] == 0x3A) or "
+     "packet[389] <= 0x67): not packet[271] >= 0x58)))",
+                                                &pkt_http_request, TRUE},
+    {"(packet[248] != 0x58? ((packet[470] > 0x66 and ((packet[96] < 0x63? "
+     "not packet[216] >= 0x2A: packet[261] == 0x58)? "
+     "(not packet[166] > 0x74? packet[502] >= 0x31: not packet[387] > 0x3A): "
+     "(not packet[387] > 0x3A? not packet[265] < 0x58: "
+     "packet[237] < 0x58))) and ((not packet[264] < 0x58 or "
+     "(not packet[113] >= 0x0D? not packet[423] == 0x3A: "
+     "packet[329] == 0x58)) and (not packet[515] < 0x4D? "
+     "(packet[172] >= 0x68? packet[286] != 0x58: not packet[121] != 0x43): "
+     "(not packet[160] < 0x70? not packet[322] != 0x58: "
+     "not packet[398] < 0x61)))): ((((packet[298] < 0x58 and "
+     "packet[268] > 0x58) and (not packet[447] <= 0x65 or "
+     "packet[149] >= 0x74)) or ((not packet[517] != 0x0D or "
+     "packet[179] < 0x6C)? (not packet[343] > 0x58 or "
+     "not packet[186] < 0x63): (not packet[255] > 0x58 or "
+     "not packet[487] == 0x20))) and (((not packet[149] < 0x74? "
+     "not packet[125] == 0x72: packet[496] < 0x41) and "
+     "(not packet[344] == 0x58? not packet[261] != 0x58: "
+     "not packet[317] >= 0x58))? (packet[100] == 0x6E? "
+     "(not packet[233] == 0x6E? packet[120] >= 0x2D: not packet[186] > 0x63): "
+     "(not packet[360] == 0x58 or packet[133] > 0x2D)): "
+     "not packet[477] == 0x69)))",              &pkt_http_request, FALSE},
+    {"ip.HdrLength == 5 and ip.TOS == 0 and ip.Length == 521 and "
+     "ip.Id == 0x482D and ip.FragOff == 0 and ip.MF == 0 and ip.DF == 1 and "
+     "ip.TTL == 64 and ip.Protocol == 6 and ip.SrcAddr == 0xFFFF0A0A0A0A and "
+     "ip.DstAddr == 0xFFFF5DB8D877 and tcp.SrcPort == 41754 and "
+     "tcp.DstPort == 80 and tcp.SeqNum == 1396231362 and "
+     "tcp.AckNum == 1446490965 and tcp.HdrLength == 8 and tcp.Fin == 0 and "
+     "tcp.Syn == 0 and tcp.Rst == 0 and tcp.Psh == 1 and tcp.Ack == 1 and "
+     "tcp.Urg == 0 and tcp.Window == 115 and tcp.UrgPtr == 0",
+                                               &pkt_http_request, TRUE},
+    {"ip.HdrLength > 5 or ip.TOS < 0 or ip.Length < 521 or ip.Id != 0x482D or "
+     "ip.FragOff != 0 or ip.MF != 0 or ip.DF < 1 or ip.TTL < 64 or "
+     "ip.Protocol > 6 or ip.SrcAddr != 0xFFFF0A0A0A0A or "
+     "ip.DstAddr < 0xFFFF5DB8D877 or tcp.SrcPort < 41754 or "
+     "tcp.DstPort < 80 or tcp.SeqNum != 1396231362 or "
+     "tcp.AckNum < 1446490965 or tcp.HdrLength < 8 or tcp.Fin != 0 or "
+     "tcp.Syn != 0 or tcp.Rst != 0 or tcp.Psh != 1 or tcp.Ack > 1 or "
+     "tcp.Urg != 0 or tcp.Window < 115 or tcp.UrgPtr < 0",
+                                               &pkt_http_request, FALSE},
+    {"localAddr == 10.10.10.10 && remoteAddr == 93.184.216.119 && "
+     "localPort == 41754 && remotePort == 80 && protocol == 6",
+                                               &pkt_http_request, TRUE},
     {"udp",                                    &pkt_dns_request, TRUE},
     {"udp && udp.SrcPort > 1 && ipv6",         &pkt_dns_request, FALSE},
     {"udp.DstPort == 53",                      &pkt_dns_request, TRUE},
     {"udp.DstPort > 100",                      &pkt_dns_request, FALSE},
+    {"zero = 0",                               &pkt_dns_request, TRUE},
+    {"zero = 1",                               &pkt_dns_request, FALSE},
     {"ip.DstAddr = 8.8.4.4",                   &pkt_dns_request, TRUE},
     {"ip.DstAddr = 8.8.8.8",                   &pkt_dns_request, FALSE},
     {"ip.DstAddr >= 8.8.0.0 &&"
@@ -360,6 +519,13 @@ static const struct test tests[] =
                                                &pkt_dns_request, FALSE},
     {"ip.DstAddr == ::ffff:8.8.4.4",           &pkt_dns_request, TRUE},
     {"ip.DstAddr == ::0:ffff:8.8.4.4",         &pkt_dns_request, TRUE},
+    {"remoteAddr == 8.8.4.4",                  &pkt_dns_request, TRUE},
+    {"remoteAddr == ::ffff:8.8.4.4",           &pkt_dns_request, TRUE},
+    {"protocol == 17",                         &pkt_dns_request, TRUE},
+    {"remotePort == 53",                       &pkt_dns_request, TRUE},
+    {"(ipv6? true: false) or (udp? udp.DstPort != 53: false) or "
+     "(not tcp and not udp? true: false)",     &pkt_dns_request, FALSE},
+    {"ipv6 or (not tcp and udp.DstPort != 53)",&pkt_dns_request, FALSE},
     {"udp.PayloadLength == 29",                &pkt_dns_request, TRUE},
     {"udp.Payload16[-1] == 0x0001 && udp.Payload16[-2] == 0x0001",
                                                &pkt_dns_request, TRUE},
@@ -367,18 +533,96 @@ static const struct test tests[] =
                                                &pkt_dns_request, TRUE},
     {"tcp.Payload32[0] > 0",                   &pkt_dns_request, FALSE},
     {"udp.Payload32[1] > 0",                   &pkt_dns_request, TRUE},
+    {"length == 57",                           &pkt_dns_request, TRUE},
+    {"(length > 57? udp: tcp)",                &pkt_dns_request, FALSE},
+    {"protocol == UDP",                        &pkt_dns_request, TRUE},
     {"random8 < 128",                          &pkt_dns_request, TRUE},
     {"(random8 < 128? random16 < 0x8000: random32 < 0x80000000)",
                                                &pkt_dns_request, TRUE},
+    {"((((not packet[22] < 0x00 or (packet[14] > 0x00 and "
+     "packet[8] <= 0x49))? (not packet[3] > 0x39 and packet[22] <= 0x00): "
+     "not packet[1] <= 0x00) and (((packet[27] != 0xA7 or "
+     "packet[16] != 0x08) or (packet[3] > 0x39? packet[18] > 0x04: "
+     "not packet[32] != 0x00))? ((packet[32] == 0x00? not packet[51] > 0x6D: "
+     "packet[54] == 0x01)? (not packet[3] >= 0x39 and packet[7] != 0x00): "
+     "not packet[45] >= 0x70): ((not packet[5] != 0x90? packet[52] > 0x00: "
+     "packet[49] == 0x63) and (not packet[46] >= 0x6C? packet[15] <= 0x01: "
+     "not packet[27] >= 0xA7))))? ((((packet[22] > 0x00? "
+     "not packet[36] >= 0x00: packet[0] > 0x45)? (packet[31] != 0x00? "
+     "not packet[40] == 0x07: packet[31] >= 0x00): not packet[43] > 0x61) and "
+     "((not packet[16] == 0x08 and not packet[13] >= 0x00)? "
+     "(packet[24] <= 0x00 or packet[15] != 0x01): "
+     "(packet[56] < 0x01? packet[50] > 0x6F: not packet[56] == 0x01)))? "
+     "(packet[15] >= 0x01 or ((not packet[14] < 0x00? not packet[39] >= 0x00: "
+     "not packet[4] == 0x20)? (packet[12] >= 0x0A and "
+     "not packet[25] <= 0x25): packet[2] < 0x00)): "
+     "(((not packet[19] <= 0x04 or not packet[25] < 0x25)? "
+     "(packet[10] != 0x00 or packet[25] < 0x25): (not packet[46] > 0x6C? "
+     "not packet[23] <= 0x35: packet[56] < 0x01))? "
+     "((not packet[48] >= 0x03 or not packet[1] == 0x00)? "
+     "(packet[47] >= 0x65 and not packet[13] == 0x00): (packet[34] <= 0x00? "
+     "packet[22] <= 0x00: packet[43] >= 0x61)): (not packet[6] < 0x00 and "
+     "not packet[41] < 0x65))): (((not packet[21] != 0x45 and "
+     "(packet[26] < 0x22 or not packet[46] <= 0x6C)) and "
+     "((not packet[56] > 0x01? packet[3] == 0x39: not packet[42] >= 0x78)? "
+     "(not packet[4] > 0x20 or not packet[8] >= 0x49): "
+     "packet[34] > 0x00)) and ((packet[50] >= 0x6F and "
+     "(packet[1] != 0x00 and not packet[37] != 0x00)) and "
+     "((packet[28] == 0x17 or not packet[11] < 0x00) or (packet[40] == 0x07? "
+     "not packet[54] > 0x01: packet[18] < 0x04)))))",
+                                               &pkt_dns_request, FALSE},
+    {"((((packet[26] > 0x22 or packet[19] != 0x04)? ((not packet[17] > 0x08? "
+     "packet[20] != 0xE0: packet[52] < 0x00) and not packet[31] == 0x00): "
+     "((not packet[23] == 0x35 and packet[13] < 0x00) and "
+     "(not packet[44] > 0x6D and packet[22] <= 0x00)))? "
+     "(((not packet[27] >= 0xA7? packet[34] >= 0x00: "
+     "not packet[38] < 0x00) and (not packet[37] < 0x00? packet[40] > 0x07: "
+     "not packet[50] >= 0x6F)) and packet[36] != 0x00): "
+     "(((packet[16] == 0x08? not packet[50] > 0x6F: packet[51] != 0x6D)? "
+     "not packet[29] != 0x08: packet[16] <= 0x08)? "
+     "((not packet[32] != 0x00 or not packet[26] != 0x22) or "
+     "(not packet[27] != 0xA7 and not packet[21] == 0x45)): "
+     "((packet[30] >= 0x01 or packet[40] > 0x07) or "
+     "(not packet[46] < 0x6C and packet[56] <= 0x01))))? packet[31] <= 0x00: "
+     "(not packet[50] >= 0x6F and not packet[9] <= 0x11))",
+                                               &pkt_dns_request, TRUE},
+    {"packet32[13] <= 0xFFFFFFE",              &pkt_dns_request, TRUE},
+    {"packet32[53b] <= 0xFFFFFFE",             &pkt_dns_request, TRUE},
+    {"packet32[14] <= 0xFFFFFFE",              &pkt_dns_request, FALSE},
+    {"packet32[54b] <= 0xFFFFFFE",             &pkt_dns_request, FALSE},
+    {"ip.HdrLength == 5 and ip.TOS == 0 and ip.Length == 57 and "
+     "ip.Id == 0x2090 and ip.FragOff == 0 and ip.MF == 0 and ip.DF == 0 and "
+     "ip.TTL == 73 and ip.Protocol == 17 and ip.SrcAddr == 0xFFFF0A000001 and "
+     "ip.DstAddr == 0xFFFF08080404 and udp.SrcPort == 57413 and "
+     "udp.DstPort == 53 and udp.Length == 37", &pkt_dns_request, TRUE},
+    {"ip.HdrLength > 5 or ip.TOS > 0 or ip.Length < 57 or ip.Id > 0x2090 or "
+     "ip.FragOff != 0 or ip.MF < 0 or ip.DF < 0 or ip.TTL > 73 or "
+     "ip.Protocol < 17 or ip.SrcAddr < 0xFFFF0A000001 or "
+     "ip.DstAddr > 0xFFFF08080404 or udp.SrcPort > 57413 or "
+     "udp.DstPort != 53 or udp.Length < 37",   &pkt_dns_request, FALSE},
+    {"localAddr == 10.0.0.1 && remoteAddr == 8.8.4.4 && "
+     "localPort == 57413 && remotePort == 53 && protocol == 17",
+                                               &pkt_dns_request, TRUE},
     {"ipv6",                                   &pkt_ipv6_tcp_syn, TRUE},
     {"ip",                                     &pkt_ipv6_tcp_syn, FALSE},
     {"tcp.Syn",                                &pkt_ipv6_tcp_syn, TRUE},
+    {"tcp.Syn == ::1 && tcp.Syn < ::ffff:aaaa:bbbb:cccc:dddd",
+                                               &pkt_ipv6_tcp_syn, TRUE},
+    {"tcp.DstPort >= 23 && tcp.DstPort <= 23", &pkt_ipv6_tcp_syn, TRUE},
+    {"tcp.Syn and not tcp.Ack",                &pkt_ipv6_tcp_syn, TRUE},
     {"tcp.Syn == 1 && tcp.Ack == 0",           &pkt_ipv6_tcp_syn, TRUE},
     {"tcp.Rst or tcp.Fin",                     &pkt_ipv6_tcp_syn, FALSE},
     {"(tcp.Syn? !tcp.Rst && !tcp.Fin: true)",  &pkt_ipv6_tcp_syn, TRUE},
     {"(tcp.Rst? !tcp.Syn: (tcp.Fin? !tcp.Syn: tcp.Syn))",
                                                &pkt_ipv6_tcp_syn, TRUE},
+    {"(tcp.Rst or tcp.Urg or tcp.Psh or tcp.Fin? false: tcp.Syn)",
+                                               &pkt_ipv6_tcp_syn, TRUE},
+    {"(tcp.Rst and tcp.Urg and tcp.Psh and tcp.Fin? false: tcp.Syn)",
+                                               &pkt_ipv6_tcp_syn, TRUE},
     {"tcp.PayloadLength == 0",                 &pkt_ipv6_tcp_syn, TRUE},
+    {"ip and !loopback and (outbound? tcp.DstPort == 80 or"
+     " tcp.DstPort == 443 or udp.DstPort == 53 :"
+     " icmp.Type == 11 and icmp.Code == 0)",   &pkt_ipv6_tcp_syn, FALSE},
     {"ipv6.SrcAddr == 1234:5678:1::aabb:ccdd", &pkt_ipv6_tcp_syn, TRUE},
     {"ipv6.SrcAddr == aabb:5678:1::1234:ccdd", &pkt_ipv6_tcp_syn, FALSE},
     {"tcp.SrcPort == 50046",                   &pkt_ipv6_tcp_syn, TRUE},
@@ -392,8 +636,83 @@ static const struct test tests[] =
     {"random8 < 128",                          &pkt_ipv6_tcp_syn, TRUE},
     {"(random8 < 128? random16 < 0x8000: random32 < 0x80000000)",
                                                &pkt_ipv6_tcp_syn, TRUE},
+    {"((((packet[56] != 0xC3? not packet[26] > 0x00: (packet[50] <= 0x00? "
+     "packet[62] < 0xFF: not packet[43] < 0x17))? not packet[2] > 0x00: "
+     "(packet[69] != 0xFF or (not packet[28] >= 0x00 and "
+     "not packet[79] > 0x07)))? (((packet[46] < 0xC8 or "
+     "packet[47] == 0xAA) or (packet[51] == 0x00 and packet[0] >= 0x60))? "
+     "packet[55] == 0xAA: not packet[79] >= 0x07): not packet[53] < 0x02)? "
+     "((not packet[65] > 0x02 and ((packet[36] >= 0x00 or "
+     "packet[24] < 0x00) and packet[3] != 0x00)) and (not packet[56] < 0xC3? "
+     "(not packet[0] <= 0x60 and (not packet[38] == 0x00 and "
+     "packet[78] > 0x03)): ((not packet[56] == 0xC3 and "
+     "not packet[9] < 0x34) and (packet[21] > 0xBB? not packet[67] < 0x0A: "
+     "not packet[75] >= 0x00)))): not packet[5] > 0x28)",
+                                                &pkt_ipv6_tcp_syn, FALSE},
+    {"(((packet[8] >= 0x12 and ((not packet[36] >= 0x00? "
+     "not packet[57] > 0x5E: packet[66] > 0x08) and "
+     "(not packet[53] > 0x02? not packet[2] == 0x00: packet[76] < 0x01))) or "
+     "(((not packet[26] <= 0x00? not packet[57] <= 0x5E: packet[7] >= 0x40)? "
+     "packet[60] > 0x02: not packet[11] <= 0x78) or ((packet[71] != 0x86? "
+     "packet[65] > 0x02: not packet[4] > 0x00)? (not packet[2] != 0x00? "
+     "not packet[57] < 0x5E: not packet[14] == 0x00): "
+     "(not packet[25] != 0x00 or packet[29] >= 0x00)))) or "
+     "(not packet[59] <= 0x00 or ((packet[76] < 0x01? not packet[7] < 0x40: "
+     "(packet[66] != 0x08 and not packet[30] > 0x00)) or "
+     "not packet[20] <= 0xAA)))",               &pkt_ipv6_tcp_syn, TRUE},
+    {"((packet[50] >= 0x00? packet[8] != 0x12: (((packet[33] > 0x00? "
+     "packet[15] >= 0x00: not packet[21] == 0xBB) or (packet[67] > 0x0A? "
+     "packet[9] == 0x34: packet[36] > 0x00)) and (packet[74] < 0x00? "
+     "(packet[60] != 0x02 and not packet[26] >= 0x00): "
+     "(not packet[29] == 0x00 and not packet[25] < 0x00)))) or "
+     "((((not packet[69] != 0xFF or packet[10] >= 0x56)? packet[8] >= 0x12: "
+     "(packet[78] < 0x03 and packet[9] >= 0x34))? ((packet[40] <= 0xC3? "
+     "not packet[15] > 0x00: not packet[71] != 0x86) and "
+     "not packet[45] != 0xD7): ((not packet[50] >= 0x00 or "
+     "not packet[1] == 0x00) or not packet[55] >= 0xAA))? "
+     "(not packet[32] == 0x00? (not packet[58] <= 0x00 and "
+     "not packet[8] > 0x12): (not packet[7] < 0x40 or "
+     "not packet[4] >= 0x00)): (((not packet[23] < 0xDD or "
+     "packet[68] >= 0xFF) and (packet[50] == 0x00 and "
+     "not packet[12] >= 0x00))? packet[48] >= 0x00: ((packet[10] != 0x56 and "
+     "not packet[4] == 0x00) and (packet[11] >= 0x78? not packet[18] > 0x00: "
+     "not packet[55] == 0xAA)))))",             &pkt_ipv6_tcp_syn, TRUE},
+    {"((packet[79] <= 0x07 and not packet[62] == 0xFF) and "
+     "((((not packet[20] > 0xAA? packet[20] <= 0xAA: packet[27] <= 0x00) and "
+     "(packet[62] > 0xFF? packet[12] == 0x00: not packet[19] == 0x00)) and "
+     "((not packet[68] == 0xFF and packet[75] > 0x00)? (packet[6] <= 0x06 or "
+     "packet[76] <= 0x01): not packet[50] == 0x00)) and (packet[57] >= 0x5E? "
+     "((not packet[75] >= 0x00? packet[75] != 0x00: not packet[63] != 0xC4)? "
+     "not packet[1] < 0x00: (packet[30] > 0x00? packet[16] == 0x00: "
+     "packet[36] == 0x00)): ((packet[66] < 0x08? not packet[0] < 0x60: "
+     "packet[72] != 0x00)? (packet[25] > 0x00 or not packet[13] < 0x01): "
+     "(packet[47] <= 0xAA and not packet[15] != 0x00)))))",
+                                                &pkt_ipv6_tcp_syn, FALSE},
+    {"packet32[-4b] < 0xFFFFFFFE",              &pkt_ipv6_tcp_syn, TRUE},
+    {"ipv6.TrafficClass == 0x00000000 and ipv6.FlowLabel == 0x0000 and "
+     "ipv6.Length == 40 and ipv6.NextHdr == 6 and ipv6.HopLimit == 64 and "
+     "ipv6.SrcAddr == 1234:5678:1:0:0:0:aabb:ccdd and "
+     "ipv6.DstAddr == 0:0:0:0:0:0:0:1 and tcp.SrcPort == 50046 and "
+     "tcp.DstPort == 23 and tcp.SeqNum == 3789015210 and tcp.AckNum == 0 and "
+     "tcp.HdrLength == 10 and tcp.Fin == 0 and tcp.Syn == 1 and "
+     "tcp.Rst == 0 and tcp.Psh == 0 and tcp.Ack == 0 and tcp.Urg == 0 and "
+     "tcp.Window == 43690 and tcp.UrgPtr == 0",&pkt_ipv6_tcp_syn, TRUE},
+    {"ipv6.TrafficClass > 0x00000000 or ipv6.FlowLabel < 0x0000 or "
+     "ipv6.Length < 40 or ipv6.NextHdr != 6 or ipv6.HopLimit > 64 or "
+     "ipv6.SrcAddr != 1234:5678:1:0:0:0:aabb:ccdd or "
+     "ipv6.DstAddr < 0:0:0:0:0:0:0:1 or tcp.SrcPort < 50046 or "
+     "tcp.DstPort > 23 or tcp.SeqNum < 3789015210 or tcp.AckNum < 0 or "
+     "tcp.HdrLength != 10 or tcp.Fin > 0 or tcp.Syn > 1 or tcp.Rst > 0 or "
+     "tcp.Psh > 0 or tcp.Ack != 0 or tcp.Urg != 0 or tcp.Window != 43690 or "
+     "tcp.UrgPtr != 0",                        &pkt_ipv6_tcp_syn, FALSE},
+    {"localAddr == 1234:5678:1::aabb:ccdd && remoteAddr == ::1 && "
+     "localPort == 50046 && remotePort == 23 && protocol == 6",
+                                               &pkt_ipv6_tcp_syn, TRUE},
+    {"packet[0] == 0x60",                      &pkt_ipv6_tcp_syn, TRUE},
     {"icmpv6",                                 &pkt_ipv6_echo_reply, TRUE},
     {"icmp",                                   &pkt_ipv6_echo_reply, FALSE},
+    {"protocol == ICMPV6",                     &pkt_ipv6_echo_reply, TRUE},
+    {"protocol == ICMP",                       &pkt_ipv6_echo_reply, FALSE},
     {"icmp or icmpv6",                         &pkt_ipv6_echo_reply, TRUE},
     {"not icmp",                               &pkt_ipv6_echo_reply, TRUE},
     {"icmpv6.Type == 129",                     &pkt_ipv6_echo_reply, TRUE},
@@ -401,11 +720,59 @@ static const struct test tests[] =
     {"icmpv6.Body == 0x10720003",              &pkt_ipv6_echo_reply, TRUE},
     {"ipv6.DstAddr >= 1000",                   &pkt_ipv6_echo_reply, FALSE},
     {"ipv6.DstAddr <= 1",                      &pkt_ipv6_echo_reply, TRUE},
+    {"ip and !loopback and (outbound? tcp.DstPort == 80 or"
+     " tcp.DstPort == 443 or udp.DstPort == 53 :"
+     " icmp.Type == 11 and icmp.Code == 0)",   &pkt_ipv6_echo_reply, FALSE},
     {"random8 < 128",                          &pkt_ipv6_echo_reply, TRUE},
     {"(random8 < 128? random16 < 0x8000: random32 < 0x80000000)",
                                                &pkt_ipv6_echo_reply, TRUE},
+    {"(((((not packet[68] != 0x44? packet[58] >= 0x00: "
+     "not packet[39] >= 0x01) and not packet[101] != 0x55) and "
+     "((not packet[70] >= 0x66? not packet[68] > 0x44: "
+     "not packet[77] > 0xDD) and (not packet[72] <= 0x88 or "
+     "packet[5] >= 0x40)))? (((not packet[88] <= 0x88 and "
+     "packet[13] > 0x00) and (packet[52] >= 0x00 and "
+     "not packet[96] == 0x00)) or packet[32] < 0x00): "
+     "(((packet[57] <= 0x75? not packet[27] == 0x00: packet[0] >= 0x60) or "
+     "(packet[90] == 0xAA or packet[62] > 0x00))? "
+     "((not packet[39] <= 0x01 and packet[48] != 0xA4) or "
+     "packet[86] <= 0x66): not packet[61] >= 0x00)) and "
+     "((packet[64] >= 0x00? (not packet[50] != 0x69 or "
+     "(not packet[92] != 0xCC? not packet[9] < 0x00: packet[93] >= 0xDD)): "
+     "((packet[58] <= 0x00 and not packet[103] != 0x77) or "
+     "(not packet[22] < 0x00? not packet[93] <= 0xDD: "
+     "not packet[55] < 0x00))) or (packet[87] <= 0x77 and "
+     "((packet[70] <= 0x66 and not packet[59] <= 0x00) and "
+     "(not packet[8] != 0x00 or packet[82] == 0x22)))))",
+                                               &pkt_ipv6_echo_reply, FALSE},
+    {"((((packet[14] == 0x00? (packet[102] > 0x66 or packet[16] != 0x00): "
+     "(packet[81] >= 0x11 or not packet[35] <= 0x00))? "
+     "((packet[88] < 0x88? packet[8] <= 0x00: packet[18] > 0x00) or "
+     "(not packet[82] <= 0x22? not packet[13] == 0x00: "
+     "not packet[37] == 0x00)): (packet[38] < 0x00 and "
+     "not packet[83] < 0x33))? packet[95] >= 0xFF: "
+     "(((not packet[96] <= 0x00? packet[84] != 0x44: "
+     "not packet[34] <= 0x00) or not packet[47] <= 0x03) or "
+     "((packet[78] == 0xEE? packet[101] >= 0x55: not packet[25] >= 0x00) or "
+     "packet[9] <= 0x00))) or (packet[59] == 0x00 and ((packet[72] < 0x88 and "
+     "(packet[52] == 0x00 or not packet[54] >= 0x00)) or "
+     "(packet[13] >= 0x00 or (not packet[93] == 0xDD and "
+     "not packet[99] < 0x33)))))",             &pkt_ipv6_echo_reply, TRUE},
+    {"ipv6.TrafficClass == 0x00000000 and ipv6.FlowLabel == 0x0000 and "
+     "ipv6.Length == 64 and ipv6.NextHdr == 58 and ipv6.HopLimit == 31 and "
+     "ipv6.SrcAddr == 0:0:0:0:0:0:0:1 and ipv6.DstAddr == 0:0:0:0:0:0:0:1 and "
+     "icmpv6.Type == 129 and icmpv6.Code == 0 and icmpv6.Body == 0x10720003",
+                                               &pkt_ipv6_echo_reply, TRUE},
+    {"ipv6.TrafficClass != 0x00000000 or ipv6.FlowLabel != 0x0000 or "
+     "ipv6.Length < 64 or ipv6.NextHdr > 58 or ipv6.HopLimit != 31 or "
+     "ipv6.SrcAddr != 0:0:0:0:0:0:0:1 or ipv6.DstAddr > 0:0:0:0:0:0:0:1 or "
+     "icmpv6.Type > 129 or icmpv6.Code > 0 or icmpv6.Body != 0x10720003",
+                                               &pkt_ipv6_echo_reply, FALSE},
+    {"localAddr == ::1 && remoteAddr == ::1 && localPort == 129 && "
+     "remotePort == 0 && protocol == 58",      &pkt_ipv6_echo_reply, TRUE},
     {"true",                                   &pkt_ipv6_exthdrs_udp, TRUE},
     {"false",                                  &pkt_ipv6_exthdrs_udp, FALSE},
+    {"protocol == 0",                          &pkt_ipv6_exthdrs_udp, FALSE},
     {"udp",                                    &pkt_ipv6_exthdrs_udp, TRUE},
     {"tcp",                                    &pkt_ipv6_exthdrs_udp, FALSE},
     {"ipv6.SrcAddr == ::",                     &pkt_ipv6_exthdrs_udp, FALSE},
@@ -417,23 +784,77 @@ static const struct test tests[] =
     {"ipv6.SrcAddr != abcd::1",                &pkt_ipv6_exthdrs_udp, TRUE},
     {"ipv6.SrcAddr >= abcd::1",                &pkt_ipv6_exthdrs_udp, FALSE},
     {"ipv6.SrcAddr > abcd::1",                 &pkt_ipv6_exthdrs_udp, FALSE},
+    {"timestamp > -1",                         &pkt_ipv6_exthdrs_udp, TRUE},
     {"udp.SrcPort == 4660 and udp.DstPort == 43690",
                                                &pkt_ipv6_exthdrs_udp, TRUE},
     {"udp.SrcPort == 4660 and udp.DstPort == 12345",
                                                &pkt_ipv6_exthdrs_udp, FALSE},
+    {"localAddr == ::1",                       &pkt_ipv6_exthdrs_udp, TRUE},
+    {"localPort == 4660 and remotePort == 43690",
+                                               &pkt_ipv6_exthdrs_udp, TRUE},
     {"(outbound and tcp? tcp.DstPort == 0xABAB: false) or "
      "(outbound and udp? udp.DstPort == 0xAAAA: false) or "
      "(inbound and tcp? tcp.SrcPort == 0xABAB: false) or "
      "(inbound and udp? udp.SrcPort == 0xAAAA: false)",
                                                &pkt_ipv6_exthdrs_udp, TRUE},
+    {"(ipv6? true: false) or (udp? udp.DstPort != 53: false) or "
+     "(not tcp and not udp? true: false)",     &pkt_ipv6_exthdrs_udp, TRUE},
     {"(tcp or udp) and (ip or ipv6) and (icmp or !icmpv6) and "
      "(tcp.Payload16[-1] == 0x1234 or udp.Payload16[-1] == 0x2101)",
                                                &pkt_ipv6_exthdrs_udp, TRUE},
+    {"udp.PayloadLength == 13",                &pkt_ipv6_exthdrs_udp, TRUE},
+    {"(udp.Length == 13? false: udp.Length == 21)",
+                                               &pkt_ipv6_exthdrs_udp, TRUE},
     {"(tcp or icmp or icmpv6 or ip or !udp or ipv6? udp.PayloadLength > 0: "
         "udp.DstPort == 39482)",               &pkt_ipv6_exthdrs_udp, TRUE},
     {"random8 < 128",                          &pkt_ipv6_exthdrs_udp, TRUE},
     {"(random8 < 128? random16 < 0x8000: random32 < 0x80000000)",
                                                &pkt_ipv6_exthdrs_udp, TRUE},
+    {"timestamp != -0x8000000000000000",       &pkt_ipv6_exthdrs_udp, TRUE},
+    {"timestamp !=  0x7fffffffffffffff",       &pkt_ipv6_exthdrs_udp, TRUE},
+    {"timestamp == -0x1deadbeef1234567",       &pkt_ipv6_exthdrs_udp, FALSE},
+    {"((packet[2] <= 0x00 or (((packet[29] < 0x00 or "
+     "not packet[35] != 0x00) and packet[32] != 0x00) and "
+     "((not packet[31] != 0x00 and packet[52] > 0x00) and "
+     "(packet[28] < 0x00? not packet[28] <= 0x00: packet[73] == 0x65))))? "
+     "((((packet[9] <= 0x00? not packet[28] == 0x00: "
+     "not packet[22] >= 0x00) and (not packet[20] != 0x00 and "
+     "not packet[22] >= 0x00)) and ((packet[42] > 0x00 and "
+     "not packet[12] < 0x00) or packet[66] == 0xAA)) or "
+     "(not packet[23] >= 0x01 and (packet[79] > 0x6F and "
+     "(not packet[18] > 0x00 or not packet[82] <= 0x64)))): "
+     "packet[62] <= 0x00)",
+                                               &pkt_ipv6_exthdrs_udp, FALSE},
+    {"((packet[56] > 0x11? (((not packet[0] > 0x60? not packet[22] < 0x00: "
+     "not packet[15] > 0x00)? (not packet[5] >= 0x2D and packet[18] != 0x00): "
+     "packet[45] == 0x00) or ((packet[47] >= 0x00 or not packet[32] >= 0x00)? "
+     "(packet[29] >= 0x00 or not packet[20] == 0x00): (packet[32] > 0x00 and "
+     "packet[46] > 0x00))): not packet[76] != 0x6F) or "
+     "((not packet[32] > 0x00 or (packet[13] == 0x00 or (packet[4] > 0x00 or "
+     "packet[21] < 0x00))) or (((packet[55] != 0x00? packet[67] != 0xAA: "
+     "not packet[66] >= 0xAA)? (packet[8] > 0x00? not packet[28] > 0x00: "
+     "packet[28] <= 0x00): not packet[78] != 0x57)? ((packet[79] == 0x6F or "
+     "packet[25] == 0x00) or (packet[68] == 0x00? not packet[50] < 0x00: "
+     "not packet[68] < 0x00)): ((not packet[78] > 0x57 and "
+     "not packet[8] == 0x00) or packet[32] <= 0x00))))",
+                                               &pkt_ipv6_exthdrs_udp, TRUE},
+    {"ipv6.TrafficClass == 0x00000000 and ipv6.FlowLabel == 0x0000 and "
+     "ipv6.Length == 45 and ipv6.NextHdr == 0 and ipv6.HopLimit == 100 and "
+     "ipv6.SrcAddr == 0:0:0:0:0:0:0:1 and ipv6.DstAddr == 0:0:0:0:0:0:0:1 and "
+     "udp.SrcPort == 4660 and udp.DstPort == 43690 and udp.Length == 21",
+                                               &pkt_ipv6_exthdrs_udp, TRUE},
+    {"(ipv6.TrafficClass == 0x00000000 and ipv6.FlowLabel == 0x0000 and "
+     "ipv6.Length == 45 and ipv6.NextHdr == 0 and ipv6.HopLimit == 101? false: "
+     "(ipv6.SrcAddr == 0:0:0:0:0:0:0:1 and ipv6.DstAddr == 0:0:0:0:0:0:0:1 and "
+     "udp.SrcPort == 4660 and udp.DstPort == 43691? false: udp.Length == 22))",
+                                               &pkt_ipv6_exthdrs_udp, FALSE},
+    {"ipv6.TrafficClass != 0x00000000 or ipv6.FlowLabel > 0x0000 or "
+     "ipv6.Length < 45 or ipv6.NextHdr != 0 or ipv6.HopLimit < 100 or "
+     "ipv6.SrcAddr > 0:0:0:0:0:0:0:1 or ipv6.DstAddr < 0:0:0:0:0:0:0:1 or "
+     "udp.SrcPort > 4660 or udp.DstPort < 43690 or udp.Length > 21",
+                                               &pkt_ipv6_exthdrs_udp, FALSE},
+    {"localAddr == ::1 and remoteAddr == 1 and localPort == 4660 and "
+     "remotePort == 43690 and protocol == 17", &pkt_ipv6_exthdrs_udp, TRUE},
 };
 
 /*
@@ -442,7 +863,9 @@ static const struct test tests[] =
 int main(void)
 {
     HANDLE upper_handle, lower_handle;
-    HANDLE console;
+    HANDLE console, monitor;
+    BOOL passed[sizeof(tests) / sizeof(struct test)], first;
+    DWORD result;
     LARGE_INTEGER freq;
     UINT64 diff;
     size_t i;
@@ -450,14 +873,14 @@ int main(void)
     // Open handles to:
     // (1) stop normal traffic from interacting with the tests; and
     // (2) stop test packets escaping to the Internet or TCP/IP stack.
-    upper_handle = WinDivertOpen("true", WINDIVERT_LAYER_NETWORK, -999,
+    upper_handle = WinDivertOpen("true", WINDIVERT_LAYER_NETWORK, 9999,
         WINDIVERT_FLAG_DROP);
-    lower_handle = WinDivertOpen("true", WINDIVERT_LAYER_NETWORK, 999,
+    lower_handle = WinDivertOpen("true", WINDIVERT_LAYER_NETWORK, -9999,
         WINDIVERT_FLAG_DROP);
     if (upper_handle == INVALID_HANDLE_VALUE ||
         lower_handle == INVALID_HANDLE_VALUE)
     {
-        fprintf(stderr, "error: failed to open WinDivert handle (err = %d)",
+        fprintf(stderr, "error: failed to open WinDivert handle (err = %d)\n",
             GetLastError());
         exit(EXIT_FAILURE);
     }
@@ -465,6 +888,16 @@ int main(void)
     console = GetStdHandle(STD_OUTPUT_HANDLE);
     QueryPerformanceFrequency(&freq);
 
+    // Spawn monitor thread:
+    monitor = CreateThread(NULL, 1, (LPTHREAD_START_ROUTINE)monitor_worker,
+        NULL, 0, NULL);
+    if (monitor == NULL)
+    {
+        fprintf(stderr, "error: failed to spawn monitor thread (err = %d)\n",
+            GetLastError());
+        exit(EXIT_FAILURE);
+    }
+
     // Wait for existing packets to flush:
     Sleep(150);
 
@@ -479,11 +912,11 @@ int main(void)
         BOOL match = tests[i].match;
 
         // Run the test:
-        BOOL res = run_test(upper_handle, filter, packet, packet_len, match,
+        passed[i] = run_test(upper_handle, filter, packet, packet_len, match,
             &diff);
         diff = 1000000 * diff / freq.QuadPart;
-        printf("%.3u ", i);
-        if (res)
+        printf("%.3u ", (unsigned)i);
+        if (passed[i])
         {
             SetConsoleTextAttribute(console, FOREGROUND_GREEN);
             printf("PASSED");
@@ -512,9 +945,61 @@ int main(void)
     WinDivertClose(upper_handle);
     WinDivertClose(lower_handle);
 
+    result = WaitForSingleObject(monitor, 1000);
+    switch (result)
+    {
+        case WAIT_OBJECT_0:
+            break;
+        case WAIT_TIMEOUT:
+            fprintf(stderr, "error: failed to wait for monitor thread "
+                "(timeout)\n");
+            exit(EXIT_FAILURE);
+        default:
+            fprintf(stderr, "error: failed to wait for monitor thread "
+                "(err = %d)\n", result);
+            exit(EXIT_FAILURE);
+    }
+
     printf("\npassed = %.2f%%\n",
         ((double)passed_tests / (double)num_tests) * 100.0);
 
+    first = TRUE;
+    for (i = 0; i < num_tests; i++)
+    {
+        const char *filter = tests[i].filter;
+        char *name = tests[i].packet->name;
+ 
+        if (passed[i])
+        {
+            continue;
+        }
+        if (first)
+        {
+            SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_BLUE);
+            printf("\nFAILED TESTS");
+            SetConsoleTextAttribute(console, FOREGROUND_RED |
+                FOREGROUND_GREEN | FOREGROUND_BLUE);
+            printf("\n------------\n\n");
+            first = FALSE;
+        }
+        printf("%.3u ", (unsigned)i);
+        SetConsoleTextAttribute(console, FOREGROUND_RED);
+        printf("FAILED");
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN |
+            FOREGROUND_BLUE);
+        printf(" p=[");
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN);
+        printf("%s", name);
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN |
+            FOREGROUND_BLUE);
+        printf("] f=[");
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN);
+        printf("%s", filter);
+        SetConsoleTextAttribute(console, FOREGROUND_RED | FOREGROUND_GREEN |
+            FOREGROUND_BLUE);
+        printf("]\n");
+    }
+
     return 0;
 }
 
@@ -537,6 +1022,7 @@ static BOOL run_test(HANDLE inject_handle, const char *filter,
     HANDLE event[2] = {NULL, NULL};
     BOOL random, result, ipv4;
     LARGE_INTEGER end;
+    UINT64 val;
 
     *diff = 0;
 
@@ -550,20 +1036,47 @@ static BOOL run_test(HANDLE inject_handle, const char *filter,
     }
 
     // (1) Open WinDivert handles:
-    handle[0] = WinDivertOpen(object, WINDIVERT_LAYER_NETWORK, 777, 0);
+    handle[0] = WinDivertOpen(object, WINDIVERT_LAYER_NETWORK, 8888, 0);
     if (handle[0] == INVALID_HANDLE_VALUE)
     {
         fprintf(stderr, "error: failed to open WinDivert handle for filter "
             "\"%s\" (err = %d)\n", filter, GetLastError());
         goto failed;
     }
-    handle[1] = WinDivertOpen("true", WINDIVERT_LAYER_NETWORK, 888, 0);
+    handle[1] = WinDivertOpen("true", WINDIVERT_LAYER_NETWORK, 7777, 0);
     if (handle[1] == INVALID_HANDLE_VALUE)
     {
         fprintf(stderr, "error: failed to open WinDivert handle "
             "(err = %d)\n", GetLastError());
         goto failed;
     }
+    if (!WinDivertSetParam(handle[0], WINDIVERT_PARAM_QUEUE_LENGTH,
+            WINDIVERT_PARAM_QUEUE_LENGTH_MAX) ||
+        !WinDivertGetParam(handle[0], WINDIVERT_PARAM_QUEUE_LENGTH, &val) ||
+        val != WINDIVERT_PARAM_QUEUE_LENGTH_MAX)
+    {
+        fprintf(stderr, "error: failed to set WINDIVERT_PARAM_QUEUE_LENGTH "
+            "parameter (err = %d)\n", GetLastError());
+        goto failed;
+    }
+    if (!WinDivertSetParam(handle[0], WINDIVERT_PARAM_QUEUE_SIZE,
+            WINDIVERT_PARAM_QUEUE_SIZE_MAX) ||
+        !WinDivertGetParam(handle[0], WINDIVERT_PARAM_QUEUE_SIZE, &val) ||
+        val != WINDIVERT_PARAM_QUEUE_SIZE_MAX)
+    {
+        fprintf(stderr, "error: failed to set WINDIVERT_PARAM_QUEUE_SIZE "
+            "parameter (err = %d)\n", GetLastError());
+        goto failed;
+    }
+    if (!WinDivertSetParam(handle[0], WINDIVERT_PARAM_QUEUE_TIME,
+            WINDIVERT_PARAM_QUEUE_TIME_MAX) ||
+        !WinDivertGetParam(handle[0], WINDIVERT_PARAM_QUEUE_TIME, &val) ||
+        val != WINDIVERT_PARAM_QUEUE_TIME_MAX)
+    {
+        fprintf(stderr, "error: failed to set WINDIVERT_PARAM_QUEUE_TIME "
+            "parameter (err = %d)\n", GetLastError());
+        goto failed;
+    }
 
     // (2) Create pended recv requests:
     event[0] = CreateEvent(NULL, FALSE, FALSE, NULL);
@@ -592,12 +1105,12 @@ static BOOL run_test(HANDLE inject_handle, const char *filter,
 
     // (2) Inject the packet:
     memset(&addr_send, 0, sizeof(addr_send));
-    addr_send.Outbound          = TRUE;
-    addr_send.PseudoIPChecksum  = TRUE;
-    addr_send.PseudoTCPChecksum = TRUE;
-    addr_send.PseudoUDPChecksum = TRUE;
-    if (!WinDivertSend(inject_handle, (PVOID)packet, packet_len, &addr_send,
-            NULL))
+    addr_send.Outbound    = TRUE;
+    addr_send.IPChecksum  = FALSE;
+    addr_send.TCPChecksum = FALSE;
+    addr_send.UDPChecksum = FALSE;
+    if (!WinDivertSend(inject_handle, (PVOID)packet, packet_len, NULL,
+            &addr_send))
     {
         fprintf(stderr, "error: failed to inject test packet (err = %d)\n",
             GetLastError());
@@ -640,7 +1153,7 @@ static BOOL run_test(HANDLE inject_handle, const char *filter,
     if (buf_len[idx] != packet_len)
     {
         fprintf(stderr, "error: packet length mis-match, expected (%u), got "
-            "(%u)\n", packet_len, buf_len[idx]);
+            "(%u)\n", (unsigned)packet_len, buf_len[idx]);
         goto failed;
     }
     iphdr = (PWINDIVERT_IPHDR)buf[idx];
@@ -689,6 +1202,29 @@ static BOOL run_test(HANDLE inject_handle, const char *filter,
     }
 
     // (5) Clean-up:
+    if (!WinDivertShutdown(handle[0], WINDIVERT_SHUTDOWN_BOTH) ||
+        !WinDivertShutdown(handle[1], WINDIVERT_SHUTDOWN_BOTH))
+    {
+        fprintf(stderr, "error: failed to shutdown WinDivert handle (err = "
+            "%d)\n", GetLastError());
+        goto failed;
+    }
+    for (i = 0; i < 1000 && WinDivertRecv(handle[0], NULL, 0, NULL, NULL); i++)
+        ;
+    if (GetLastError() != ERROR_NO_DATA)
+    {
+        fprintf(stderr, "error: failed to recv NO_DATA from shutdown "
+            "WinDivert handle (err = %d)\n", GetLastError());
+        goto failed;
+    }
+    for (i = 0; i < 1000 && WinDivertRecv(handle[1], NULL, 0, NULL, NULL); i++)
+        ;
+    if (GetLastError() != ERROR_NO_DATA)
+    {
+        fprintf(stderr, "error: failed to recv NO_DATA from shutdown "
+            "WinDivert handle (err = %d)\n", GetLastError());
+        goto failed;
+    }
     if (!WinDivertClose(handle[0]) || !WinDivertClose(handle[1]))
     {
         fprintf(stderr, "error: failed to close WinDivert handle (err = %d)\n",
@@ -715,3 +1251,91 @@ failed:
     return FALSE;
 }
 
+/*
+ * Monitor thread.
+ */
+static DWORD monitor_worker(LPVOID arg)
+{
+    char filter[100], packet[4096], object_1[4096], *object_2, filter_2[8192];
+    UINT packet_len;
+    WINDIVERT_ADDRESS addr;
+    PWINDIVERT_IPHDR iphdr;
+    UINT i;
+
+    snprintf(filter, sizeof(filter), "processId=%d and priority=8888 and "
+        "event=OPEN", GetCurrentProcessId());
+    HANDLE handle = WinDivertOpen(filter, WINDIVERT_LAYER_REFLECT, 0,
+        WINDIVERT_FLAG_SNIFF | WINDIVERT_FLAG_RECV_ONLY);
+    if (handle == INVALID_HANDLE_VALUE)
+    {
+        fprintf(stderr, "error: failed to open reflect handle (err = %d)\n",
+            GetLastError());
+        exit(EXIT_FAILURE);
+    }
+
+    size_t num_tests = sizeof(tests) / sizeof(struct test);
+    for (i = 0; i < num_tests; i++)
+    {
+        // (1) Read the reflected filter:
+        WinDivertHelperCompileFilter(tests[i].filter, WINDIVERT_LAYER_NETWORK,
+            object_1, sizeof(object_1), NULL, NULL);
+        if (!WinDivertRecv(handle, packet, sizeof(packet), &packet_len, &addr))
+        {
+            fprintf(stderr, "error: failed to read OPEN event (err = %d)\n",
+                GetLastError());
+            exit(EXIT_FAILURE);
+        }
+        object_2 = packet;
+        if (strcmp(object_1, object_2) != 0)
+        {
+            // Filter is not the same.
+            fprintf(stderr, "error: filter object mismatch (%s vs %s)\n",
+                object_1, object_2);
+            exit(EXIT_FAILURE);
+        }
+
+        // (2) Test if formatted filter is equivalent:
+        if (!WinDivertHelperFormatFilter(object_1, WINDIVERT_LAYER_NETWORK,
+                filter_2, sizeof(filter_2)))
+        {
+            fprintf(stderr, "error: failed to format filter (err = %d)\n",
+                GetLastError());
+            exit(EXIT_FAILURE);
+        }
+        if (!WinDivertHelperCompileFilter(filter_2, WINDIVERT_LAYER_NETWORK,
+                object_1, sizeof(object_1), NULL, NULL))
+        {
+            fprintf(stderr, "error: failed to recompile filter (err = %d)\n",
+                GetLastError());
+            exit(EXIT_FAILURE);
+        }
+        if (strcmp(object_1, object_2) == 0)
+        {
+            // Recompiled filter is exactly the same; test has passed.
+            continue;
+        }
+        if (strstr(filter_2, "random") != NULL)
+        {
+            // Cannot verify random filters.
+            continue;
+        }
+        iphdr = (PWINDIVERT_IPHDR)tests[i].packet->packet;
+        memset(&addr, 0, sizeof(addr));
+        addr.Event    = WINDIVERT_EVENT_NETWORK_PACKET;
+        addr.Layer    = WINDIVERT_LAYER_NETWORK;
+        addr.Outbound = TRUE;
+        addr.IPv6     = (iphdr->Version == 4? FALSE: TRUE);
+        if (WinDivertHelperEvalFilter(object_1, tests[i].packet->packet,
+                tests[i].packet->packet_len, &addr) != tests[i].match)
+        {
+            fprintf(stderr, "error: failed to match recompiled filter "
+                "(test = %.3u, filter = \"%s\" formatted = \"%s\", "
+                "err = %d)\n", i, tests[i].filter, filter_2, GetLastError());
+            exit(EXIT_FAILURE);
+        }
+    }
+
+    WinDivertClose(handle);
+    return 0;
+}
+

test/test.vcxproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+
+    test.vcxproj
+    (C) 2019, all rights reserved,
+    
+    This file is part of WinDivert.
+    
+    WinDivert is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+    License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    
+    WinDivert is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation; either version 2 of the License, or (at your option)
+    any later version.
+    
+    This program is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc., 51
+    Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+    
+-->
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+  <ProjectConfiguration Include="Release|Win32">
+   <Configuration>Release</Configuration>
+   <Platform>Win32</Platform>
+  </ProjectConfiguration>
+  <ProjectConfiguration Include="Release|x64">
+   <Configuration>Release</Configuration>
+   <Platform>x64</Platform>
+  </ProjectConfiguration>
+ </ItemGroup>
+ <ItemGroup>
+  <ClCompile Include="test.c">
+   <TreatWarningAsError>false</TreatWarningAsError>
+   <Optimization>MinSpace</Optimization>
+   <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+   <AdditionalIncludeDirectories>..\include</AdditionalIncludeDirectories>
+  </ClCompile>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+  <RootNamespace>test</RootNamespace>
+  <ProjectName>test</ProjectName>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <PropertyGroup Label="Configuration">
+  <PlatformToolset>v140</PlatformToolset>
+  <ConfigurationType>Application</ConfigurationType>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+  <Link>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\install\MSVC\i386\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+   <AdditionalDependencies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\install\MSVC\amd64\WinDivert.lib;%(AdditionalDependencies)</AdditionalDependencies>
+  </Link>
+ </ItemDefinitionGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>

test/test_data.c

@@ -1,6 +1,6 @@
 /*
  * test_data.c
- * (C) 2018, all rights reserved,
+ * (C) 2019, all rights reserved,
  *
  * This file is part of WinDivert.
  *

wddk-build.bat

@@ -1,5 +1,5 @@
 :: wddk-build.bat
-:: (C) 2018, all rights reserved,
+:: (C) 2019, all rights reserved,
 ::
 :: This file is part of WinDivert.
 ::