/******************************************************************************
PacketFilter::StopFirewall - This method stops firewall.
*******************************************************************************/
BOOL PacketFilter::StopFirewall()
{
BOOL bStopped = FALSE;
try
{
// Remove all filters.
AddRemoveFilter( false );
// Unbind from packet filter interface.
if( ERROR_SUCCESS == BindUnbindInterface( false ) )
{
// Delete packet filter interface.
if( ERROR_SUCCESS == CreateDeleteInterface( false ) )
{
bStopped = TRUE;
}
}
}
catch(...)
{
}
return bStopped;
}
/******************************************************************************
PacketFilter::StartFirewall - This public method starts firewall.
*******************************************************************************/
BOOL PacketFilter::StartFirewall()
{
BOOL bStarted = FALSE;
try
{
// Create packet filter interface.
if( ERROR_SUCCESS == CreateDeleteInterface( true ) )
{
// Bind to packet filter interface.
if( ERROR_SUCCESS == BindUnbindInterface( true ) )
{
// Add filters.
AddRemoveFilter( true );
bStarted = TRUE;
}
}
}
catch(...)
{
}
return bStarted;
}
/******************************************************************************
PacketFilter::StartFirewall - This public method starts firewall.
*******************************************************************************/
BOOL PacketFilter::StartFirewall()
{
BOOL bStarted = FALSE;
NET_LUID tapluid;
PIP_ADAPTER_INFO pAdapterInfo;
PIP_ADAPTER_INFO pAdapter = NULL;
DWORD dwRetVal = 0;
ULONG ulOutBufLen = sizeof(IP_ADAPTER_INFO);
pAdapterInfo = (IP_ADAPTER_INFO *)MALLOC(sizeof(IP_ADAPTER_INFO));
if (pAdapterInfo == NULL) {
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return 1;
}
// Make an initial call to GetAdaptersInfo to get
// the necessary size into the ulOutBufLen variable
if (GetAdaptersInfo(pAdapterInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW) {
FREE(pAdapterInfo);
pAdapterInfo = (IP_ADAPTER_INFO *)MALLOC(ulOutBufLen);
if (pAdapterInfo == NULL) {
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return 2;
}
}
if ((dwRetVal = GetAdaptersInfo(pAdapterInfo, &ulOutBufLen)) == NO_ERROR) {
pAdapter = pAdapterInfo;
while (pAdapter) {
if ((strstr(pAdapter->Description, "TAP-Windows Adapter V9") != NULL) ||
(strstr(pAdapter->Description, "Viscosity Virtual Adapter") != NULL))
{
if (ConvertInterfaceIndexToLuid(pAdapter->Index, &tapluid) == NO_ERROR)
tapluids.push_back(tapluid.Value);
}
pAdapter = pAdapter->Next;
}
}
else {
printf("GetAdaptersInfo failed with error: %d\n", dwRetVal);
}
if (pAdapterInfo)
FREE(pAdapterInfo);
if (tapluids.size() <= 0) {
printf("No TAP adapters found!\n");
return 3;
}
printf("Found %d TAP adapters\n", tapluids.size());
try
{
// Create packet filter interface.
printf("before CreateDeleteInterface()\n");
if( ERROR_SUCCESS == CreateDeleteInterface(true) )
{
printf("before BindUnbindInterface()\n");
// Bind to packet filter interface.
if( ERROR_SUCCESS == BindUnbindInterface(true) )
{
printf("before AddRemoveFilter()\n");
// Add filters.
AddRemoveFilter(true);
bStarted = TRUE;
}
}
}
catch(...)
{
printf("catch ...\n");
}
return bStarted;
}
/******************************************************************************
PacketFilter::StartFirewall - This public method starts firewall.
*******************************************************************************/
BOOL PacketFilter::StartFirewall()
{
BOOL bStarted = FALSE;
int tapadapter_index = -1;
PIP_ADAPTER_INFO pAdapterInfo;
PIP_ADAPTER_INFO pAdapter = NULL;
DWORD dwRetVal = 0;
ULONG ulOutBufLen = sizeof(IP_ADAPTER_INFO);
pAdapterInfo = (IP_ADAPTER_INFO *)MALLOC(sizeof(IP_ADAPTER_INFO));
if (pAdapterInfo == NULL) {
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return 1;
}
// Make an initial call to GetAdaptersInfo to get
// the necessary size into the ulOutBufLen variable
if (GetAdaptersInfo(pAdapterInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW) {
FREE(pAdapterInfo);
pAdapterInfo = (IP_ADAPTER_INFO *)MALLOC(ulOutBufLen);
if (pAdapterInfo == NULL) {
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return 2;
}
}
if ((dwRetVal = GetAdaptersInfo(pAdapterInfo, &ulOutBufLen)) == NO_ERROR) {
pAdapter = pAdapterInfo;
while (pAdapter) {
if (strcmp(pAdapter->Description, "TAP-Windows Adapter V9") == 0) {
tapadapter_index = pAdapter->Index;
break;
}
pAdapter = pAdapter->Next;
}
}
else {
printf("GetAdaptersInfo failed with error: %d\n", dwRetVal);
}
if (pAdapterInfo)
FREE(pAdapterInfo);
NET_LUID tapluid;
if (tapadapter_index < 0) {
printf("Tap Adapter not found!\n");
return 3;
}
if (ConvertInterfaceIndexToLuid(tapadapter_index, &tapluid) != NO_ERROR) {
printf("Cant find LUID for TAP adapter!\n");
return 4;
}
this->tapluid64 = tapluid.Value;
try
{
// Create packet filter interface.
if( ERROR_SUCCESS == CreateDeleteInterface( true ) )
{
// Bind to packet filter interface.
if( ERROR_SUCCESS == BindUnbindInterface( true ) )
{
// Add filters.
AddRemoveFilter( true );
bStarted = TRUE;
}
}
}
catch(...)
{
}
return bStarted;
}
