162 lines
4.2 KiB
C++
162 lines
4.2 KiB
C++
|
/*++
|
||
|
|
|
||
|
|
Copyright(c) 2001 Microsoft Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
NLB Manager
|
||
|
|
|
||
|
|
File Name:
|
||
|
|
|
||
|
|
nlbhost_ping.cpp
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Implementation of Ping-related functionality of class NLBHost
|
||
|
|
|
||
|
|
This code is adapted from the "ping" utility.
|
||
|
|
|
||
|
|
History:
|
||
|
|
|
||
|
|
03/31/01 JosephJ Created
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#include "stdafx.h"
|
||
|
|
#include "ipexport.h"
|
||
|
|
#include "icmpapi.h"
|
||
|
|
#include "private.h"
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
struct IPErrorTable {
|
||
|
|
IP_STATUS Error; // The IP Error
|
||
|
|
DWORD ErrorNlsID; // NLS string ID
|
||
|
|
} ErrorTable[] =
|
||
|
|
{
|
||
|
|
{ IP_BUF_TOO_SMALL, PING_BUF_TOO_SMALL},
|
||
|
|
{ IP_DEST_NET_UNREACHABLE, PING_DEST_NET_UNREACHABLE},
|
||
|
|
{ IP_DEST_HOST_UNREACHABLE, PING_DEST_HOST_UNREACHABLE},
|
||
|
|
{ IP_DEST_PROT_UNREACHABLE, PING_DEST_PROT_UNREACHABLE},
|
||
|
|
{ IP_DEST_PORT_UNREACHABLE, PING_DEST_PORT_UNREACHABLE},
|
||
|
|
{ IP_NO_RESOURCES, PING_NO_RESOURCES},
|
||
|
|
{ IP_BAD_OPTION, PING_BAD_OPTION},
|
||
|
|
{ IP_HW_ERROR, PING_HW_ERROR},
|
||
|
|
{ IP_PACKET_TOO_BIG, PING_PACKET_TOO_BIG},
|
||
|
|
{ IP_REQ_TIMED_OUT, PING_REQ_TIMED_OUT},
|
||
|
|
{ IP_BAD_REQ, PING_BAD_REQ},
|
||
|
|
{ IP_BAD_ROUTE, PING_BAD_ROUTE},
|
||
|
|
{ IP_TTL_EXPIRED_TRANSIT, PING_TTL_EXPIRED_TRANSIT},
|
||
|
|
{ IP_TTL_EXPIRED_REASSEM, PING_TTL_EXPIRED_REASSEM},
|
||
|
|
{ IP_PARAM_PROBLEM, PING_PARAM_PROBLEM},
|
||
|
|
{ IP_SOURCE_QUENCH, PING_SOURCE_QUENCH},
|
||
|
|
{ IP_OPTION_TOO_BIG, PING_OPTION_TOO_BIG},
|
||
|
|
{ IP_BAD_DESTINATION, PING_BAD_DESTINATION},
|
||
|
|
{ IP_NEGOTIATING_IPSEC, PING_NEGOTIATING_IPSEC},
|
||
|
|
{ IP_GENERAL_FAILURE, PING_GENERAL_FAILURE}
|
||
|
|
};
|
||
|
|
#endif // 0
|
||
|
|
|
||
|
|
|
||
|
|
UINT
|
||
|
|
NLBHost::mfn_ping(
|
||
|
|
VOID
|
||
|
|
)
|
||
|
|
{
|
||
|
|
UINT Status = ERROR_SUCCESS;
|
||
|
|
LONG inaddr;
|
||
|
|
char rgchBindString[1024];
|
||
|
|
|
||
|
|
mfn_Log(L"NLBHost -- pinging (%s).", (LPCWSTR) m_BindString);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Convert to ANSI.
|
||
|
|
//
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Resolve to an IP address...
|
||
|
|
//
|
||
|
|
inaddr = inet_addr(m_BindString);
|
||
|
|
if (inaddr == -1L)
|
||
|
|
{
|
||
|
|
struct hostent *hostp = NULL;
|
||
|
|
hostp = gethostbyname(m_BindString);
|
||
|
|
if (hostp) {
|
||
|
|
unsigned char *pc = (unsigned char *) & inaddr;
|
||
|
|
// If we find a host entry, set up the internet address
|
||
|
|
inaddr = *(long *)hostp->h_addr;
|
||
|
|
mfn_Log(
|
||
|
|
L"NLBHost -- resolved to IP address %d.%d.%d.%d.",
|
||
|
|
pc[0],
|
||
|
|
pc[1],
|
||
|
|
pc[2],
|
||
|
|
pc[3]
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
// Neither dotted, not name.
|
||
|
|
Status = WSAGetLastError();
|
||
|
|
mfn_Log(L"NLBHost -- could not resolve bind address.");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Send Icmp echo.
|
||
|
|
//
|
||
|
|
HANDLE IcmpHandle;
|
||
|
|
|
||
|
|
IcmpHandle = IcmpCreateFile();
|
||
|
|
if (IcmpHandle == INVALID_HANDLE_VALUE) {
|
||
|
|
Status = GetLastError();
|
||
|
|
mfn_Log(L"Unable to contact IP driver, error code %d.",Status);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
const int Count = 4;
|
||
|
|
const int Timeout = 1000;
|
||
|
|
const int MinInterval = 500;
|
||
|
|
|
||
|
|
for (int i = 0; i < Count; i++)
|
||
|
|
{
|
||
|
|
static BYTE SendBuffer[32];
|
||
|
|
BYTE RcvBuffer[1024];
|
||
|
|
int numberOfReplies;
|
||
|
|
numberOfReplies = IcmpSendEcho2(IcmpHandle,
|
||
|
|
0,
|
||
|
|
NULL,
|
||
|
|
NULL,
|
||
|
|
inaddr,
|
||
|
|
SendBuffer,
|
||
|
|
sizeof(SendBuffer),
|
||
|
|
NULL,
|
||
|
|
RcvBuffer,
|
||
|
|
sizeof(RcvBuffer),
|
||
|
|
Timeout
|
||
|
|
);
|
||
|
|
|
||
|
|
if (numberOfReplies == 0) {
|
||
|
|
|
||
|
|
int errorCode = GetLastError();
|
||
|
|
mfn_Log(L"ICMP Error %d", errorCode );
|
||
|
|
|
||
|
|
|
||
|
|
// TODO: look at ping sources for proper error reporting
|
||
|
|
// (host unreachable, etc...)
|
||
|
|
|
||
|
|
if (i < (Count - 1)) {
|
||
|
|
Sleep(MinInterval);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
mfn_Log(L"Ping succeeded.");
|
||
|
|
Status = ERROR_SUCCESS;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
end:
|
||
|
|
|
||
|
|
return Status;
|
||
|
|
}
|