NTSTATUS NetworkPingThreadStart(
_In_ PVOID Parameter
)
{
HANDLE icmpHandle = INVALID_HANDLE_VALUE;
ULONG icmpCurrentPingMs = 0;
ULONG icmpReplyCount = 0;
ULONG icmpReplyLength = 0;
PVOID icmpReplyBuffer = NULL;
PPH_BYTES icmpEchoBuffer = NULL;
IP_OPTION_INFORMATION pingOptions =
{
255, // Time To Live
0, // Type Of Service
IP_FLAG_DF, // IP header flags
0 // Size of options data
};
PNETWORK_OUTPUT_CONTEXT context = (PNETWORK_OUTPUT_CONTEXT)Parameter;
__try
{
// Create ICMP echo buffer.
if (context->PingSize > 0 && context->PingSize != 32)
{
PPH_STRING randString;
randString = PhCreateStringEx(NULL, context->PingSize * 2 + 2);
// Create a random string to fill the buffer.
PhGenerateRandomAlphaString(randString->Buffer, (ULONG)randString->Length / sizeof(WCHAR));
icmpEchoBuffer = PhConvertUtf16ToMultiByte(randString->Buffer);
PhDereferenceObject(randString);
}
else
{
PPH_STRING version;
// We're using a default length, query the PH version and use the previous buffer format.
version = PhGetPhVersion();
if (version)
{
icmpEchoBuffer = FormatAnsiString("processhacker_%S_0x0D06F00D_x1", version->Buffer);
PhDereferenceObject(version);
}
}
if (context->IpAddress.Type == PH_IPV6_NETWORK_TYPE)
{
SOCKADDR_IN6 icmp6LocalAddr = { 0 };
SOCKADDR_IN6 icmp6RemoteAddr = { 0 };
PICMPV6_ECHO_REPLY2 icmp6ReplyStruct = NULL;
// Create ICMPv6 handle.
if ((icmpHandle = Icmp6CreateFile()) == INVALID_HANDLE_VALUE)
__leave;
// Set Local IPv6-ANY address.
icmp6LocalAddr.sin6_addr = in6addr_any;
icmp6LocalAddr.sin6_family = AF_INET6;
// Set Remote IPv6 address.
icmp6RemoteAddr.sin6_addr = context->IpAddress.In6Addr;
icmp6RemoteAddr.sin6_port = _byteswap_ushort((USHORT)context->NetworkItem->RemoteEndpoint.Port);
// Allocate ICMPv6 message.
icmpReplyLength = ICMP_BUFFER_SIZE(sizeof(ICMPV6_ECHO_REPLY), icmpEchoBuffer);
icmpReplyBuffer = PhAllocate(icmpReplyLength);
memset(icmpReplyBuffer, 0, icmpReplyLength);
InterlockedIncrement(&context->PingSentCount);
// Send ICMPv6 ping...
icmpReplyCount = Icmp6SendEcho2(
icmpHandle,
NULL,
NULL,
NULL,
&icmp6LocalAddr,
&icmp6RemoteAddr,
icmpEchoBuffer->Buffer,
(USHORT)icmpEchoBuffer->Length,
&pingOptions,
icmpReplyBuffer,
icmpReplyLength,
context->MaxPingTimeout
);
icmp6ReplyStruct = (PICMPV6_ECHO_REPLY2)icmpReplyBuffer;
if (icmpReplyCount > 0 && icmp6ReplyStruct)
{
BOOLEAN icmpPacketSignature = FALSE;
if (icmp6ReplyStruct->Status != IP_SUCCESS)
{
InterlockedIncrement(&context->PingLossCount);
}
if (_memicmp(
icmp6ReplyStruct->Address.sin6_addr,
context->IpAddress.In6Addr.u.Word,
sizeof(icmp6ReplyStruct->Address.sin6_addr)
) != 0)
{
InterlockedIncrement(&context->UnknownAddrCount);
}
icmpPacketSignature = _memicmp(
icmpEchoBuffer->Buffer,
icmp6ReplyStruct->Data,
icmpEchoBuffer->Length
) == 0;
if (!icmpPacketSignature)
{
InterlockedIncrement(&context->HashFailCount);
}
icmpCurrentPingMs = icmp6ReplyStruct->RoundTripTime;
}
else
{
InterlockedIncrement(&context->PingLossCount);
}
}
else
{
IPAddr icmpLocalAddr = 0;
IPAddr icmpRemoteAddr = 0;
PICMP_ECHO_REPLY icmpReplyStruct = NULL;
// Create ICMPv4 handle.
if ((icmpHandle = IcmpCreateFile()) == INVALID_HANDLE_VALUE)
__leave;
// Set Local IPv4-ANY address.
icmpLocalAddr = in4addr_any.s_addr;
// Set Remote IPv4 address.
icmpRemoteAddr = context->IpAddress.InAddr.s_addr;
// Allocate ICMPv4 message.
icmpReplyLength = ICMP_BUFFER_SIZE(sizeof(ICMP_ECHO_REPLY), icmpEchoBuffer);
icmpReplyBuffer = PhAllocate(icmpReplyLength);
memset(icmpReplyBuffer, 0, icmpReplyLength);
InterlockedIncrement(&context->PingSentCount);
// Send ICMPv4 ping...
icmpReplyCount = IcmpSendEcho2Ex(
icmpHandle,
NULL,
NULL,
NULL,
icmpLocalAddr,
icmpRemoteAddr,
icmpEchoBuffer->Buffer,
(USHORT)icmpEchoBuffer->Length,
&pingOptions,
icmpReplyBuffer,
icmpReplyLength,
context->MaxPingTimeout
);
icmpReplyStruct = (PICMP_ECHO_REPLY)icmpReplyBuffer;
if (icmpReplyStruct && icmpReplyCount > 0)
{
BOOLEAN icmpPacketSignature = FALSE;
if (icmpReplyStruct->Status != IP_SUCCESS)
{
InterlockedIncrement(&context->PingLossCount);
}
if (icmpReplyStruct->Address != context->IpAddress.InAddr.s_addr)
{
InterlockedIncrement(&context->UnknownAddrCount);
}
if (icmpReplyStruct->DataSize == icmpEchoBuffer->Length)
{
icmpPacketSignature = _memicmp(
icmpEchoBuffer->Buffer,
icmpReplyStruct->Data,
icmpReplyStruct->DataSize
) == 0;
}
icmpCurrentPingMs = icmpReplyStruct->RoundTripTime;
if (!icmpPacketSignature)
{
InterlockedIncrement(&context->HashFailCount);
}
}
else
{
InterlockedIncrement(&context->PingLossCount);
}
}
InterlockedIncrement(&context->PingRecvCount);
if (context->PingMinMs == 0 || icmpCurrentPingMs < context->PingMinMs)
context->PingMinMs = icmpCurrentPingMs;
if (icmpCurrentPingMs > context->PingMaxMs)
context->PingMaxMs = icmpCurrentPingMs;
context->CurrentPingMs = icmpCurrentPingMs;
PhAddItemCircularBuffer_ULONG(&context->PingHistory, icmpCurrentPingMs);
}
__finally
{
if (icmpEchoBuffer)
{
PhDereferenceObject(icmpEchoBuffer);
}
if (icmpHandle != INVALID_HANDLE_VALUE)
{
IcmpCloseHandle(icmpHandle);
}
if (icmpReplyBuffer)
{
PhFree(icmpReplyBuffer);
}
}
PostMessage(context->WindowHandle, WM_PING_UPDATE, 0, 0);
return STATUS_SUCCESS;
}
static NTSTATUS PhNetworkPingThreadStart(
_In_ PVOID Parameter
)
{
HANDLE icmpHandle = INVALID_HANDLE_VALUE;
ULONG icmpCurrentPingMs = 0;
ULONG icmpCurrentPingTtl = 0;
ULONG icmpReplyCount = 0;
ULONG icmpReplyLength = 0;
PVOID icmpReplyBuffer = NULL;
PPH_STRING phVersion = NULL;
PPH_BYTES icmpEchoBuffer = NULL;
IP_OPTION_INFORMATION pingOptions =
{
255, // Time To Live
0, // Type Of Service
IP_FLAG_DF, // IP header flags
0 // Size of options data
};
PNETWORK_OUTPUT_CONTEXT context = (PNETWORK_OUTPUT_CONTEXT)Parameter;
__try
{
// Query PH version.
if ((phVersion = PhGetPhVersion()) == NULL)
__leave;
// Create ICMP echo buffer.
if ((icmpEchoBuffer = PhFormatAnsiString("processhacker_%S_0x0D06F00D_x1", phVersion->Buffer)) == NULL)
__leave;
if (context->IpAddress.Type == PH_IPV6_NETWORK_TYPE)
{
SOCKADDR_IN6 icmp6LocalAddr = { 0 };
SOCKADDR_IN6 icmp6RemoteAddr = { 0 };
PICMPV6_ECHO_REPLY icmp6ReplyStruct = NULL;
// Create ICMPv6 handle.
if ((icmpHandle = Icmp6CreateFile()) == INVALID_HANDLE_VALUE)
__leave;
// Set Local IPv6-ANY address.
icmp6LocalAddr.sin6_addr = in6addr_any;
icmp6LocalAddr.sin6_family = AF_INET6;
// Set Remote IPv6 address.
icmp6RemoteAddr.sin6_addr = context->IpAddress.In6Addr;
icmp6RemoteAddr.sin6_port = _byteswap_ushort((USHORT)context->NetworkItem->RemoteEndpoint.Port);
// Allocate ICMPv6 message.
icmpReplyLength = ICMP_BUFFER_SIZE(sizeof(ICMPV6_ECHO_REPLY), icmpEchoBuffer);
icmpReplyBuffer = PhAllocate(icmpReplyLength);
memset(icmpReplyBuffer, 0, icmpReplyLength);
InterlockedIncrement(&context->PingSentCount);
// Send ICMPv6 ping...
icmpReplyCount = Icmp6SendEcho2(
icmpHandle,
NULL,
NULL,
NULL,
&icmp6LocalAddr,
&icmp6RemoteAddr,
icmpEchoBuffer->Buffer,
(USHORT)icmpEchoBuffer->Length,
&pingOptions,
icmpReplyBuffer,
icmpReplyLength,
context->MaxPingTimeout
);
icmp6ReplyStruct = (PICMPV6_ECHO_REPLY)icmpReplyBuffer;
if (icmpReplyCount > 0 && icmp6ReplyStruct)
{
BOOLEAN icmpPacketSignature = FALSE;
if (icmp6ReplyStruct->Status != IP_SUCCESS)
{
InterlockedIncrement(&context->PingLossCount);
}
if (_memicmp(
icmp6ReplyStruct->Address.sin6_addr,
context->IpAddress.In6Addr.u.Word,
sizeof(icmp6ReplyStruct->Address.sin6_addr)
) != 0)
{
InterlockedIncrement(&context->UnknownAddrCount);
}
//if (icmp6ReplyStruct->DataSize == icmpEchoBuffer->MaximumLength)
//{
// icmpPacketSignature = (_memicmp(
// icmpEchoBuffer->Buffer,
// icmp6ReplyStruct->Data,
// icmp6ReplyStruct->DataSize
// ) == 0);
//}
//if (icmpPacketSignature != TRUE)
//{
// InterlockedIncrement(&context->HashFailCount);
//}
icmpCurrentPingMs = icmp6ReplyStruct->RoundTripTime;
//icmpCurrentPingTtl = icmp6ReplyStruct->Options.Ttl;
}
else
{
InterlockedIncrement(&context->PingLossCount);
}
}
else
{
IPAddr icmpLocalAddr = 0;
IPAddr icmpRemoteAddr = 0;
PICMP_ECHO_REPLY icmpReplyStruct = NULL;
// Create ICMPv4 handle.
if ((icmpHandle = IcmpCreateFile()) == INVALID_HANDLE_VALUE)
__leave;
// Set Local IPv4-ANY address.
icmpLocalAddr = in4addr_any.s_addr;
// Set Remote IPv4 address.
icmpRemoteAddr = context->IpAddress.InAddr.s_addr;
// Allocate ICMPv4 message.
icmpReplyLength = ICMP_BUFFER_SIZE(sizeof(ICMP_ECHO_REPLY), icmpEchoBuffer);
icmpReplyBuffer = PhAllocate(icmpReplyLength);
memset(icmpReplyBuffer, 0, icmpReplyLength);
InterlockedIncrement(&context->PingSentCount);
// Send ICMPv4 ping...
//if (WindowsVersion > WINDOWS_VISTA)
//{
// // Vista SP1 and up we can specify the source address:
// icmpReplyCount = IcmpSendEcho2Ex(
// icmpHandle,
// NULL,
// NULL,
// NULL,
// icmpLocalAddr,
// icmpRemoteAddr,
// icmpEchoBuffer->Buffer,
// icmpEchoBuffer->MaximumLength,
// &pingOptions,
// icmpReplyBuffer,
// icmpReplyLength,
// context->MaxPingTimeout
// );
//}
icmpReplyCount = IcmpSendEcho2(
icmpHandle,
NULL,
NULL,
NULL,
icmpRemoteAddr,
icmpEchoBuffer->Buffer,
(USHORT)icmpEchoBuffer->Length,
&pingOptions,
icmpReplyBuffer,
icmpReplyLength,
context->MaxPingTimeout
);
icmpReplyStruct = (PICMP_ECHO_REPLY)icmpReplyBuffer;
if (icmpReplyStruct && icmpReplyCount > 0)
{
BOOLEAN icmpPacketSignature = FALSE;
if (icmpReplyStruct->Status != IP_SUCCESS)
{
InterlockedIncrement(&context->PingLossCount);
}
if (icmpReplyStruct->Address != context->IpAddress.InAddr.s_addr)
{
InterlockedIncrement(&context->UnknownAddrCount);
}
if (icmpReplyStruct->DataSize == icmpEchoBuffer->Length)
{
icmpPacketSignature = (_memicmp(
icmpEchoBuffer->Buffer,
icmpReplyStruct->Data,
icmpReplyStruct->DataSize
) == 0);
}
icmpCurrentPingMs = icmpReplyStruct->RoundTripTime;
icmpCurrentPingTtl = icmpReplyStruct->Options.Ttl;
if (!icmpPacketSignature)
{
InterlockedIncrement(&context->HashFailCount);
}
}
else
{
InterlockedIncrement(&context->PingLossCount);
}
}
InterlockedIncrement(&context->PingRecvCount);
if (context->PingMinMs == 0 || icmpCurrentPingMs < context->PingMinMs)
context->PingMinMs = icmpCurrentPingMs;
if (icmpCurrentPingMs > context->PingMaxMs)
context->PingMaxMs = icmpCurrentPingMs;
context->CurrentPingMs = icmpCurrentPingMs;
PhAddItemCircularBuffer_ULONG(&context->PingHistory, icmpCurrentPingMs);
}
__finally
{
if (phVersion)
{
PhDereferenceObject(phVersion);
}
if (icmpEchoBuffer)
{
PhDereferenceObject(icmpEchoBuffer);
}
if (icmpHandle != INVALID_HANDLE_VALUE)
{
IcmpCloseHandle(icmpHandle);
}
if (icmpReplyBuffer)
{
PhFree(icmpReplyBuffer);
}
}
PostMessage(context->WindowHandle, WM_PING_UPDATE, 0, 0);
return STATUS_SUCCESS;
}
