📄 packet32.c
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dim=sizeof(UpperBindStr);
Status=RegQueryValueEx(LinkageKey,L"UpperBind",NULL,NULL,(PUCHAR)UpperBindStr,&dim);
ODSEx("UpperBind=%S ", UpperBindStr);
dim=RegKeySize-k;
Status=RegQueryValueEx(LinkageKey,L"Export",NULL,NULL,(LPBYTE)BpStr+k,&dim);
if(Status!=ERROR_SUCCESS){
RegCloseKey( OneAdapKey );
RegCloseKey( LinkageKey );
ODS("Name = SKIPPED (error reading the key)\n");
continue;
}
RegCloseKey( OneAdapKey );
RegCloseKey( LinkageKey );
ODSEx("Name = %S\n", (LPBYTE)BpStr+k);
k+=dim-2;
} // while enum reg keys
RegCloseKey(AdapKey);
#ifdef _DEBUG_TO_FILE
//dump BpStr for debug purposes
ODS("Dumping BpStr:");
{
FILE *f;
f = fopen("winpcap_debug.txt", "a");
for(i=0;i<k;i++){
if(!(i%32))fprintf(f, "\n ");
fprintf(f, "%c " , *((LPBYTE)BpStr+i));
}
fclose(f);
}
ODS("\n");
#endif
if (k != 0)
{
DescBuf=GlobalAllocPtr(GMEM_MOVEABLE | GMEM_ZEROINIT, 4096);
if (DescBuf == NULL) {
GlobalFreePtr (BpStr);
GlobalFreePtr(OidData);
return FALSE;
}
DpStr=DescBuf;
for(i=0,k=0;BpStr[i]!=0 || BpStr[i+1]!=0;)
{
if(k+wcslen(BpStr+i)+30 > *BufferSize){
// Input buffer too small
GlobalFreePtr(OidData);
GlobalFreePtr (BpStr);
GlobalFreePtr (DescBuf);
ODS("PacketGetAdapterNames: Input buffer too small!\n");
return FALSE;
}
// Create the device name
rewind=k;
memcpy(pStr+k,BpStr+i,16);
memcpy(pStr+k+8,TEXT("NPF_"),8);
i+=8;
k+=12;
while(BpStr[i-1]!=0){
pStr[k++]=BpStr[i++];
}
// Open the adapter
adapter=PacketOpenAdapter(pStr+rewind);
if(adapter==NULL){
k=rewind;
continue;
}
// Retrieve the description
OidData->Oid = OID_GEN_VENDOR_DESCRIPTION;
OidData->Length = 256;
ZeroMemory(OidData->Data,256);
Status = PacketRequest(adapter,FALSE,OidData);
if(Status==0 || ((char*)OidData->Data)[0]==0){
k=rewind;
continue;
}
ODSEx("Adapter Description=%s\n\n",OidData->Data);
// Copy the description
TTpStr=(char*)(OidData->Data);
while(*TTpStr!=0){
*DpStr++=*TTpStr++;
}
*DpStr++=*TTpStr++;
// Close the adapter
PacketCloseAdapter(adapter);
} // for end - parse through string
*DpStr=0;
pStr[k++]=0;
pStr[k]=0;
if((ULONG)(DpStr-DescBuf+k) < *BufferSize)
memcpy(pStr+k,DescBuf,DpStr-DescBuf);
else{
GlobalFreePtr(OidData);
GlobalFreePtr (BpStr);
GlobalFreePtr (DescBuf);
ODS("\nPacketGetAdapterNames: ended with failure\n");
return FALSE;
}
GlobalFreePtr(OidData);
GlobalFreePtr (BpStr);
GlobalFreePtr (DescBuf);
ODS("\nPacketGetAdapterNames: ended correctly\n");
return TRUE;
} // if k != 0
else{
DWORD RegType;
ODS("Adapters not found under SYSTEM\\CurrentControlSet\\Control\\Class. Using the TCP/IP bindings.\n");
GlobalFreePtr (BpStr);
Status=RegOpenKeyEx(HKEY_LOCAL_MACHINE,TEXT("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Linkage"),0,KEY_READ,&LinkageKey);
if (Status == ERROR_SUCCESS)
{
// Retrieve the length of the key
Status=RegQueryValueEx(LinkageKey,TEXT("bind"),NULL,&RegType,NULL,&RegKeySize);
// Allocate the buffer
BpStr=GlobalAllocPtr(GMEM_MOVEABLE | GMEM_ZEROINIT,RegKeySize+2);
if (BpStr == NULL || RegKeySize > *BufferSize) {
GlobalFreePtr(OidData);
return FALSE;
}
Status=RegQueryValueEx(LinkageKey,TEXT("bind"),NULL,&RegType,(LPBYTE)BpStr,&RegKeySize);
RegCloseKey(LinkageKey);
}
if (Status==ERROR_SUCCESS){
DescBuf=GlobalAllocPtr(GMEM_MOVEABLE | GMEM_ZEROINIT, 4096);
if (DescBuf == NULL) {
GlobalFreePtr (BpStr);
GlobalFreePtr(OidData);
return FALSE;
}
DpStr=DescBuf;
for(i=0,k=0;BpStr[i]!=0 || BpStr[i+1]!=0;){
if(k+wcslen(BpStr+i)+30 > *BufferSize){
// Input buffer too small
GlobalFreePtr(OidData);
GlobalFreePtr (BpStr);
GlobalFreePtr (DescBuf);
return FALSE;
}
// Create the device name
rewind=k;
memcpy(pStr+k,BpStr+i,16);
memcpy(pStr+k+8,TEXT("NPF_"),8);
i+=8;
k+=12;
while(BpStr[i-1]!=0){
pStr[k++]=BpStr[i++];
}
// Open the adapter
adapter=PacketOpenAdapter(pStr+rewind);
if(adapter==NULL){
k=rewind;
continue;
}
// Retrieve the description
OidData->Oid = OID_GEN_VENDOR_DESCRIPTION;
OidData->Length = 256;
Status = PacketRequest(adapter,FALSE,OidData);
if(Status==0 || ((char*)OidData->Data)[0]==0){
k=rewind;
continue;
}
// Copy the description
TTpStr=(char*)(OidData->Data);
while(*TTpStr!=0){
*DpStr++=*TTpStr++;
}
*DpStr++=*TTpStr++;
// Close the adapter
PacketCloseAdapter(adapter);
} // for end - parse string
*DpStr=0;
pStr[k++]=0;
pStr[k]=0;
if((ULONG)(DpStr-DescBuf+k) < *BufferSize)
memcpy(pStr+k,DescBuf,DpStr-DescBuf);
else{
GlobalFreePtr(OidData);
GlobalFreePtr (BpStr);
GlobalFreePtr (DescBuf);
return FALSE;
}
GlobalFreePtr(OidData);
GlobalFreePtr (BpStr);
GlobalFreePtr (DescBuf);
return TRUE;
} // if key 'bind' was successfully opened
else{
MessageBox(NULL,TEXT("Can not find TCP/IP bindings.\nIn order to run the packet capture driver you must install TCP/IP."),szWindowTitle,MB_OK);
ODS("Cannot find the TCP/IP bindings");
return FALSE;
}
}
}/*!
\brief Returns comprehensive information the addresses of an adapter.
\param AdapterName String that contain _ADAPTER structure.
\param buffer A user allocated array of npf_if_addr that will be filled by the function.
\param NEntries Size of the array (in npf_if_addr).
\return If the function succeeds, the return value is nonzero.
This function grabs from the registry information like the IP addresses, the netmasks
and the broadcast addresses of an interface. The buffer passed by the user is filled with
npf_if_addr structures, each of which contains the data for a single address. If the buffer
is full, the reaming addresses are dropeed, therefore set its dimension to sizeof(npf_if_addr)
if you want only the first address.
*/
BOOLEAN PacketGetNetInfoEx(LPTSTR AdapterName, npf_if_addr* buffer, PLONG NEntries)
{
char *AdapterNameA;
WCHAR *AdapterNameU;
WCHAR *ifname;
HKEY SystemKey;
HKEY InterfaceKey;
HKEY ParametersKey;
HKEY TcpIpKey;
HKEY UnderTcpKey;
LONG status;
WCHAR String[1024+1];
DWORD RegType;
ULONG BufLen;
DWORD DHCPEnabled;
struct sockaddr_in *TmpAddr, *TmpBroad;
LONG naddrs,nmasks,StringPos;
DWORD ZeroBroadcast;
AdapterNameA = (char*)AdapterName;
if(AdapterNameA[1] != 0) { //ASCII
AdapterNameU = SChar2WChar(AdapterNameA);
AdapterName = AdapterNameU;
} else { //Unicode
AdapterNameU = NULL;
}
ifname = wcsrchr(AdapterName, '\\');
if (ifname == NULL)
ifname = AdapterName;
else
ifname++;
if (wcsncmp(ifname, L"NPF_", 4) == 0)
ifname += 4;
if( RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces"), 0, KEY_READ, &UnderTcpKey) == ERROR_SUCCESS)
{
status = RegOpenKeyEx(UnderTcpKey,ifname,0,KEY_READ,&TcpIpKey);
if (status != ERROR_SUCCESS) {
RegCloseKey(UnderTcpKey);
goto fail;
}
}
else
{
// Query the registry key with the interface's adresses
status = RegOpenKeyEx(HKEY_LOCAL_MACHINE,TEXT("SYSTEM\\CurrentControlSet\\Services"),0,KEY_READ,&SystemKey);
if (status != ERROR_SUCCESS)
goto fail;
status = RegOpenKeyEx(SystemKey,ifname,0,KEY_READ,&InterfaceKey);
if (status != ERROR_SUCCESS) {
RegCloseKey(SystemKey);
goto fail;
}
RegCloseKey(SystemKey);
status = RegOpenKeyEx(InterfaceKey,TEXT("Parameters"),0,KEY_READ,&ParametersKey);
if (status != ERROR_SUCCESS) {
RegCloseKey(InterfaceKey);
goto fail;
}
RegCloseKey(InterfaceKey);
status = RegOpenKeyEx(ParametersKey,TEXT("TcpIp"),0,KEY_READ,&TcpIpKey);
if (status != ERROR_SUCCESS) {
RegCloseKey(ParametersKey);
goto fail;
}
RegCloseKey(ParametersKey);
BufLen = sizeof String;
}
BufLen = 4;
/* Try to detect if the interface has a zero broadcast addr */
status=RegQueryValueEx(TcpIpKey,TEXT("UseZeroBroadcast"),NULL,&RegType,(LPBYTE)&ZeroBroadcast,&BufLen);
if (status != ERROR_SUCCESS)
ZeroBroadcast=0;
BufLen = 4;
/* See if DHCP is used by this system */
status=RegQueryValueEx(TcpIpKey,TEXT("EnableDHCP"),NULL,&RegType,(LPBYTE)&DHCPEnabled,&BufLen);
if (status != ERROR_SUCCESS)
DHCPEnabled=0;
/* Retrieve the adrresses */
if(DHCPEnabled){
BufLen = sizeof String;
// Open the key with the addresses
status = RegQueryValueEx(TcpIpKey,TEXT("DhcpIPAddress"),NULL,&RegType,(LPBYTE)String,&BufLen);
if (status != ERROR_SUCCESS) {
RegCloseKey(TcpIpKey);
goto fail;
}
// scan the key to obtain the addresses
StringPos = 0;
for(naddrs = 0;naddrs <* NEntries;naddrs++){
TmpAddr = (struct sockaddr_in *) &(buffer[naddrs].IPAddress);
if((TmpAddr->sin_addr.S_un.S_addr = inet_addrU(String + StringPos))!= -1){
TmpAddr->sin_family = AF_INET;
TmpBroad = (struct sockaddr_in *) &(buffer[naddrs].Broadcast);
TmpBroad->sin_family = AF_INET;
if(ZeroBroadcast==0)
TmpBroad->sin_addr.S_un.S_addr = 0xffffffff; // 255.255.255.255
else
TmpBroad->sin_addr.S_un.S_addr = 0; // 0.0.0.0
while(*(String + StringPos) != 0)StringPos++;
StringPos++;
if(*(String + StringPos) == 0 || (StringPos * sizeof (WCHAR)) >= BufLen)
break;
}
else break;
}
BufLen = sizeof String;
// Open the key with the netmasks
status = RegQueryValueEx(TcpIpKey,TEXT("DhcpSubnetMask"),NULL,&RegType,(LPBYTE)String,&BufLen);
if (status != ERROR_SUCCESS) {
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