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464 lines
15 KiB
464 lines
15 KiB
//////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2001 Microsoft Corporation
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//
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// Module Name:
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// utils.cpp
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//
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// Abstract:
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// This module contains general utility functions.
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//
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//////////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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// ---------------------------------------------------------
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//
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// Function: TdiLibStatusMessage
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//
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// Arguments: ulGeneralStatus -- NTSTATUS value to search
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//
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// Returns: String with message to print
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//
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// Descript: This function finds and returns a string corresponding
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// to the status passed in..
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//
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// ----------------------------------------------------------
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TCHAR *
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TdiLibStatusMessage(NTSTATUS lStatus)
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{
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static TCHAR UnknownMess[64];
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TCHAR *Message;
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switch(lStatus)
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{
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case STATUS_SUCCESS:
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Message = TEXT("STATUS_SUCCESS");
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break;
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case STATUS_UNSUCCESSFUL:
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Message = TEXT("STATUS_UNSUCCESSFUL");
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break;
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case STATUS_NOT_IMPLEMENTED:
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Message = TEXT("STATUS_NOT_IMPLEMENTED");
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break;
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case STATUS_INVALID_HANDLE:
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Message = TEXT("STATUS_INVALID_HANDLE");
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break;
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case STATUS_INVALID_PARAMETER:
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Message = TEXT("STATUS_INVALID_PARAMETER");
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break;
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case STATUS_INVALID_DEVICE_REQUEST:
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Message = TEXT("STATUS_INVALID_DEVICE_REQUEST");
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break;
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case STATUS_INSUFFICIENT_RESOURCES:
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Message = TEXT("STATUS_INSUFFICIENT_RESOURCES");
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break;
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case STATUS_NOT_SUPPORTED:
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Message = TEXT("STATUS_NOT_SUPPORTED");
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break;
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case STATUS_BUFFER_OVERFLOW:
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Message = TEXT("STATUS_BUFFER_OVERFLOW");
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break;
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case STATUS_PENDING:
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Message = TEXT("STATUS_PENDING");
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break;
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case STATUS_CONNECTION_REFUSED:
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Message = TEXT("STATUS_CONNECTION_REFUSED");
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break;
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case STATUS_GRACEFUL_DISCONNECT:
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Message = TEXT("STATUS_GRACEFUL_DISCONNECT");
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break;
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case STATUS_ADDRESS_ALREADY_ASSOCIATED:
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Message = TEXT("STATUS_ADDRESS_ALREADY_ASSOCIATED");
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break;
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case STATUS_ADDRESS_NOT_ASSOCIATED:
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Message = TEXT("STATUS_ADDRESS_NOT_ASSOCIATED");
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break;
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case STATUS_INVALID_CONNECTION:
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Message = TEXT("STATUS_INVALID_CONNECTION");
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break;
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case STATUS_CONNECTION_INVALID:
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Message = TEXT("STATUS_CONNECTION_INVALID");
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break;
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case STATUS_CONNECTION_DISCONNECTED:
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Message = TEXT("STATUS_CONNECTION_DISCONNECTED");
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break;
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case STATUS_INVALID_ADDRESS_COMPONENT:
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Message = TEXT("STATUS_INVALID_ADDRESS_COMPONENT");
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break;
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case STATUS_LOCAL_DISCONNECT:
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Message = TEXT("STATUS_LOCAL_DISCONNECT");
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break;
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case STATUS_LINK_TIMEOUT:
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Message = TEXT("STATUS_LINK_TIMEOUT");
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break;
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case STATUS_IO_TIMEOUT:
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Message = TEXT("STATUS_IO_TIMEOUT");
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break;
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case STATUS_REMOTE_NOT_LISTENING:
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Message = TEXT("STATUS_REMOTE_NOT_LISTENING");
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break;
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case STATUS_BAD_NETWORK_PATH:
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Message = TEXT("STATUS_BAD_NETWORK_PATH");
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break;
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case TDI_STATUS_TIMEDOUT:
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Message = TEXT("TDI_STATUS_TIMEDOUT");
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break;
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default:
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_stprintf(UnknownMess, TEXT("STATUS_UNKNOWN [0x%x]"), lStatus);
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Message = UnknownMess;
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break;
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};
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return Message;
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}
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// ---------------------------------------------------------
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//
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// Function: DoPrintAddress
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//
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// Arguments: pTransportAddress -- address to print
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//
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// Returns: none
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//
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// Descript: This function prints the address information
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// of the address passed in
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//
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// ----------------------------------------------------------
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VOID
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DoPrintAddress(PTRANSPORT_ADDRESS pTransportAddress)
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{
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switch(pTransportAddress->Address[0].AddressType)
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{
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case TDI_ADDRESS_TYPE_IP:
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{
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PTDI_ADDRESS_IP pTdiAddressIp
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= (PTDI_ADDRESS_IP)pTransportAddress->Address[0].Address;
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PUCHAR pucTemp
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= (PUCHAR)&pTdiAddressIp->in_addr;
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_tprintf(TEXT("TDI_ADDRESS_TYPE_IP\n")
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TEXT("sin_port = 0x%04x\n")
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TEXT("in_addr = %u.%u.%u.%u\n"),
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pTdiAddressIp->sin_port,
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pucTemp[0], pucTemp[1],
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pucTemp[2], pucTemp[3]);
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}
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break;
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case TDI_ADDRESS_TYPE_IPX:
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{
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PTDI_ADDRESS_IPX pTdiAddressIpx
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= (PTDI_ADDRESS_IPX)pTransportAddress->Address[0].Address;
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_tprintf(TEXT("TDI_ADDRESS_TYPE_IPX\n")
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TEXT("NetworkAddress = 0x%08x\n")
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TEXT("NodeAddress = %u.%u.%u.%u.%u.%u\n")
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TEXT("Socket = 0x%04x\n"),
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pTdiAddressIpx->NetworkAddress,
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pTdiAddressIpx->NodeAddress[0],
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pTdiAddressIpx->NodeAddress[1],
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pTdiAddressIpx->NodeAddress[2],
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pTdiAddressIpx->NodeAddress[3],
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pTdiAddressIpx->NodeAddress[4],
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pTdiAddressIpx->NodeAddress[5],
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pTdiAddressIpx->Socket);
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}
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break;
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case TDI_ADDRESS_TYPE_NETBIOS:
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{
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PTDI_ADDRESS_NETBIOS pTdiAddressNetbios
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= (PTDI_ADDRESS_NETBIOS)pTransportAddress->Address[0].Address;
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TCHAR pucName[17];
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//
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// make sure we have a zero-terminated name to print...
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//
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memcpy(pucName, pTdiAddressNetbios->NetbiosName, 16 * sizeof(TCHAR));
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pucName[16] = 0;
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_putts(TEXT("TDI_ADDRESS_TYPE_NETBIOS\n")
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TEXT("NetbiosNameType = TDI_ADDRESS_NETBIOS_TYPE_"));
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switch (pTdiAddressNetbios->NetbiosNameType)
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{
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case TDI_ADDRESS_NETBIOS_TYPE_UNIQUE:
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_putts(TEXT("UNIQUE\n"));
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break;
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case TDI_ADDRESS_NETBIOS_TYPE_GROUP:
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_putts(TEXT("GROUP\n"));
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break;
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case TDI_ADDRESS_NETBIOS_TYPE_QUICK_UNIQUE:
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_putts(TEXT("QUICK_UNIQUE\n"));
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break;
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case TDI_ADDRESS_NETBIOS_TYPE_QUICK_GROUP:
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_putts(TEXT("QUICK_GROUP\n"));
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break;
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default:
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_tprintf(TEXT("INVALID [0x%04x]\n"),
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pTdiAddressNetbios->NetbiosNameType);
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break;
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}
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_tprintf(TEXT("NetbiosName = %s\n"), pucName);
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}
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break;
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}
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}
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// -----------------------------------------------------------------
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//
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// Function: TdiLibDeviceIO
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//
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// Arguments: ulCommandCode -- command code of operation to perform
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// pSendBuffer -- data structure containing arguments for driver
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// pReceiveBuffer-- data structure containing return values from
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// driver
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// NOTE: all are passed thru unchanged to DeviceIoControl
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//
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// Returns: Final status of operation -- STATUS_SUCCESS or failure code
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//
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// Descript: This function acts as a "wrapper" for DeviceIoControl, and is
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// used by those functions that really want a synchronous call,
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// but don't want to be hung up in the driver. If a call to
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// DeviceIoControl pends, this function waits for up to a minute
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// for it to complete. If it doesn't complete within a minute,
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// it assumes something is drastically wrong and returns a time-
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// out error. If a function completes before then, it gets the
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// final completion code and returns that. Hence,
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// STATUS_PENDING should never be returned by this function.
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//
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// Status: ok
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//
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// -----------------------------------------------------------------
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NTSTATUS
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TdiLibDeviceIO(ULONG ulCommandCode,
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PSEND_BUFFER pSendBuffer,
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PRECEIVE_BUFFER pReceiveBuffer)
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{
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NTSTATUS lStatus; // final status from command
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OVERLAPPED *pOverLapped // structure for asynchronous completion
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= (OVERLAPPED *)LocalAllocateMemory(sizeof(OVERLAPPED));
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//
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// create the event to wait on
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//
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pOverLapped->hEvent = CreateEvent(NULL, // non-inheritable
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TRUE, // manually signalled
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TRUE, // initially signalled
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NULL); // un-named
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//
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// need the event object to do asynchronous calls
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//
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if (pOverLapped->hEvent != NULL)
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{
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pOverLapped->Offset = 0;
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pOverLapped->OffsetHigh = 0;
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lStatus = TdiLibStartDeviceIO(ulCommandCode,
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pSendBuffer,
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pReceiveBuffer,
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pOverLapped);
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if (lStatus == STATUS_PENDING)
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{
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ULONG ulTimeOut = 60; // 60 seconds
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for (;;)
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{
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lStatus = TdiLibWaitForDeviceIO(pOverLapped);
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if (lStatus == STATUS_SUCCESS)
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{
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lStatus = pReceiveBuffer->lStatus;
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break;
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}
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else if (lStatus == TDI_STATUS_TIMEDOUT)
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{
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if (--ulTimeOut == 0)
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{
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SEND_BUFFER SendBuffer;
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RECEIVE_BUFFER ReceiveBuffer;
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TdiLibDeviceIO(ulABORT_COMMAND,
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&SendBuffer,
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&ReceiveBuffer);
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ulTimeOut = 60;
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}
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}
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else // some type of error case
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{
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lStatus = STATUS_UNSUCCESSFUL;
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break;
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}
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}
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}
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CloseHandle(pOverLapped->hEvent);
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}
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//
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// get here if CreateEvent failed
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//
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else
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{
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OutputDebugString(TEXT("TdiLibDeviceIo: CreateEvent failed\n"));
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lStatus = STATUS_UNSUCCESSFUL;
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}
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if (lStatus != TDI_STATUS_TIMEDOUT)
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{
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LocalFreeMemory(pOverLapped);
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}
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if (lStatus == STATUS_SUCCESS)
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{
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lStatus = pReceiveBuffer->lStatus;
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}
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return lStatus;
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}
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// -----------------------------------------------------------------
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//
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// Function: TdiLibStartDeviceIO
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//
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// Arguments: ulCommandCode -- control code of operation to perform
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// pSendBuffer -- data structure containing arguments for driver
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// pReceiveBuffer-- data structure containing return values from
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// driver
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// pOverlapped -- overlapped structure
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// NOTE: all are passed thru unchanged to DeviceIoControl
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//
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// Returns: Status of operation -- STATUS_PENDING, STATUS_SUCCESS, or failure code
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//
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// Descript: This function acts as a "wrapper" for DeviceIoControl, and is
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// used by those functions that need an asynchronous call. It
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// is used in association with TdiWaitForDeviceIO (which
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// checks to see if it is complete)
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//
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// Status: ok
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//
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// -----------------------------------------------------------------
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NTSTATUS
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TdiLibStartDeviceIO(ULONG ulCommandCode,
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PSEND_BUFFER pSendBuffer,
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PRECEIVE_BUFFER pReceiveBuffer,
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OVERLAPPED *pOverLapped)
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{
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NTSTATUS lStatus; // final status...
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ULONG ulBytesReturned; // bytes stored in OutBuffer
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ULONG fResult; // immediate result of DeviceIoControl
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//
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// following call to the driver will return TRUE on SUCCESS_SUCCESS,
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// FALSE on everything else
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//
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EnterCriticalSection(&LibCriticalSection);
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fResult = DeviceIoControl(hTdiSampleDriver,
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ulTdiCommandToIoctl(ulCommandCode),
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pSendBuffer,
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sizeof(SEND_BUFFER),
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pReceiveBuffer,
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sizeof(RECEIVE_BUFFER),
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&ulBytesReturned,
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pOverLapped);
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LeaveCriticalSection(&LibCriticalSection);
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if (!fResult)
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{
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lStatus = GetLastError();
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if (lStatus != ERROR_IO_PENDING)
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{
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OutputDebugString(TEXT("TdiLibStartDeviceIO: DeviceIoControl failed!\n"));
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return STATUS_UNSUCCESSFUL;
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}
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return STATUS_PENDING;
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}
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//
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// gets to here if DeviceIoControl returned SUCCESS
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//
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return STATUS_SUCCESS;
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}
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// ----------------------------------------------------------------
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//
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// Function: TdiLibWaitForDeviceIO
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//
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// Arguments: hEvent -- event handle associated with asynchronous
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// deviceio
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// pOverlapped -- overlap structure (so we can get at results)
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//
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// Returns: final ntstatus of asynchronous operation
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//
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// Descript: This function is used to wait for the completion of an
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// asynchronous deviceio call started by TdiStartDeviceIO
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//
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// Status: ok
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//
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// ----------------------------------------------------------------
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const ULONG ulONE_SECOND = 1000; // milliseconds in a second
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NTSTATUS
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TdiLibWaitForDeviceIO(OVERLAPPED *pOverLapped)
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{
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NTSTATUS lStatus; // final status
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ULONG ulBytesReturned; // bytes written to outputbuffer
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//
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// DeviceIoControl in TdiStartDeviceIO pended.
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// Will wait for 1 second before timing out....
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//
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lStatus = WaitForSingleObject(pOverLapped->hEvent, ulONE_SECOND);
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if (lStatus == WAIT_OBJECT_0)
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{
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if (GetOverlappedResult(hTdiSampleDriver,
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pOverLapped,
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&ulBytesReturned,
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TRUE))
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{
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return STATUS_SUCCESS;
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}
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else // unexpected error case
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{
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OutputDebugString(TEXT("TdiLibWaitForDeviceIO: Pended DeviceIoControl failed\n"));
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}
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}
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else if (lStatus == WAIT_TIMEOUT)
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{
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return TDI_STATUS_TIMEDOUT;
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}
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//
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// unexpected return from WaitForSingleObject. Assume an error
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//
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else
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{
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OutputDebugString(TEXT("TdiLibWaitForDeviceIO: Pended DeviceIoControl had an error..\n"));
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}
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return STATUS_UNSUCCESSFUL;
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}
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////////////////////////////////////////////////////////////////////////////
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// end of file utils.cpp
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////////////////////////////////////////////////////////////////////////////
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