--- /dev/null
+ /*
+ * PROJECT: ReactOS trace route utility
+ * LICENSE: GPL - See COPYING in the top level directory
+ * FILE: base/applications/network/tracert/tracert.c
+ * PURPOSE: Trace network paths through networks
+ * COPYRIGHT: Copyright 2006 - 2007 Ged Murphy <gedmurphy@reactos.org>
+ *
+ */
+
+#include "tracert.h"
+
+//#define TRACERT_DBG
+
+CHAR cHostname[256]; // target hostname
+CHAR cDestIP[18]; // target IP
+
+static VOID
+DebugPrint(LPTSTR lpString, ...)
+{
+#ifdef TRACERT_DBG
+ va_list args;
+ va_start(args, lpString);
+ _vtprintf(lpString, args);
+ va_end(args);
+#else
+ UNREFERENCED_PARAMETER(lpString);
+#endif
+}
+
+static VOID
+Usage(VOID)
+{
+ _tprintf(_T("\nUsage: tracert [-d] [-h maximum_hops] [-j host-list] [-w timeout] target_name\n\n"
+ "Options:\n"
+ " -d Do not resolve addresses to hostnames.\n"
+ " -h maximum_hops Maximum number of hops to search for target.\n"
+ " -j host-list Loose source route along host-list.\n"
+ " -w timeout Wait timeout milliseconds for each reply.\n\n"));
+
+ _tprintf(_T("NOTES\n-----\n"
+ "- Setting TTL values is not currently supported in ReactOS, so the trace will\n"
+ " jump straight to the destination. This feature will be implemented soon.\n"
+ "- Host info is not currently available in ReactOS and will fail with strange\n"
+ " results. Use -d to force it not to resolve IP's.\n"
+ "- For testing purposes, all should work as normal in a Windows environment\n\n"));
+}
+
+static BOOL
+ParseCmdline(int argc,
+ LPCTSTR argv[],
+ PAPPINFO pInfo)
+{
+ INT i;
+
+ if (argc < 2)
+ {
+ Usage();
+ return FALSE;
+ }
+ else
+ {
+ for (i = 1; i < argc; i++)
+ {
+ if (argv[i][0] == _T('-'))
+ {
+ switch (argv[i][1])
+ {
+ case _T('d'):
+ pInfo->bResolveAddresses = FALSE;
+ break;
+
+ case _T('h'):
+ _stscanf(argv[i+1], _T("%d"), &pInfo->iMaxHops);
+ break;
+
+ case _T('j'):
+ _tprintf(_T("-j is not yet implemented.\n"));
+ break;
+
+ case _T('w'):
+ _stscanf(argv[i+1], _T("%d"), &pInfo->iTimeOut);
+ break;
+
+ default:
+ {
+ _tprintf(_T("%s is not a valid option.\n"), argv[i]);
+ Usage();
+ return FALSE;
+ }
+ }
+ }
+ else
+ /* copy target address */
+ _tcsncpy(cHostname, argv[i], 255);
+ }
+ }
+
+ return TRUE;
+}
+
+static WORD
+CheckSum(PUSHORT data,
+ UINT size)
+{
+ DWORD dwSum = 0;
+
+ while (size > 1)
+ {
+ dwSum += *data++;
+ size -= sizeof(USHORT);
+ }
+
+ if (size)
+ dwSum += *(UCHAR*)data;
+
+ dwSum = (dwSum >> 16) + (dwSum & 0xFFFF);
+ dwSum += (dwSum >> 16);
+
+ return (USHORT)(~dwSum);
+}
+
+static VOID
+SetupTimingMethod(PAPPINFO pInfo)
+{
+ LARGE_INTEGER PerformanceCounterFrequency;
+
+ /* check if performance counters are available */
+ pInfo->bUsePerformanceCounter = QueryPerformanceFrequency(&PerformanceCounterFrequency);
+
+ if (pInfo->bUsePerformanceCounter)
+ {
+ /* restrict execution to first processor on SMP systems */
+ if (SetThreadAffinityMask(GetCurrentThread(), 1) == 0)
+ pInfo->bUsePerformanceCounter = FALSE;
+
+ pInfo->TicksPerMs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000;
+ pInfo->TicksPerUs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000000;
+ }
+ else
+ {
+ pInfo->TicksPerMs.QuadPart = 1;
+ pInfo->TicksPerUs.QuadPart = 1;
+ }
+}
+
+static BOOL
+ResolveHostname(PAPPINFO pInfo)
+{
+ HOSTENT *hp;
+ ULONG addr;
+
+ ZeroMemory(&pInfo->dest, sizeof(pInfo->dest));
+
+ /* if address is not a dotted decimal */
+ if ((addr = inet_addr(cHostname))== INADDR_NONE)
+ {
+ if ((hp = gethostbyname(cHostname)) != 0)
+ {
+ //CopyMemory(&pInfo->dest.sin_addr, hp->h_addr, hp->h_length);
+ pInfo->dest.sin_addr = *((struct in_addr *)hp->h_addr);
+ pInfo->dest.sin_family = hp->h_addrtype;
+ }
+ else
+ {
+ _tprintf(_T("Unable to resolve target system name %s.\n"), cHostname);
+ return FALSE;
+ }
+ }
+ else
+ {
+ pInfo->dest.sin_addr.s_addr = addr;
+ pInfo->dest.sin_family = AF_INET;
+ }
+
+ _tcscpy(cDestIP, inet_ntoa(pInfo->dest.sin_addr));
+
+ return TRUE;
+}
+
+static LONGLONG
+GetTime(PAPPINFO pInfo)
+{
+ LARGE_INTEGER Time;
+
+ /* Get the system time using performance counters if available */
+ if (pInfo->bUsePerformanceCounter)
+ {
+ if (QueryPerformanceCounter(&Time))
+ {
+ return Time.QuadPart;
+ }
+ }
+
+ /* otherwise fall back to GetTickCount */
+ Time.u.LowPart = (DWORD)GetTickCount();
+ Time.u.HighPart = 0;
+
+ return (LONGLONG)Time.u.LowPart;
+}
+
+static BOOL
+SetTTL(SOCKET sock,
+ INT iTTL)
+{
+ if (setsockopt(sock,
+ IPPROTO_IP,
+ IP_TTL,
+ (const char *)&iTTL,
+ sizeof(iTTL)) == SOCKET_ERROR)
+ {
+ DebugPrint(_T("TTL setsockopt failed : %d. \n"), WSAGetLastError());
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static BOOL
+CreateSocket(PAPPINFO pInfo)
+{
+ pInfo->icmpSock = WSASocket(AF_INET,
+ SOCK_RAW,
+ IPPROTO_ICMP,
+ 0,
+ 0,
+ 0);
+
+ if (pInfo->icmpSock == INVALID_SOCKET)
+ {
+ INT err = WSAGetLastError();
+ DebugPrint(_T("Could not create socket : %d.\n"), err);
+
+ if (err == WSAEACCES)
+ {
+ _tprintf(_T("\n\nYou must have access to raw sockets (admin) to run this program!\n\n"));
+ }
+
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static VOID
+PreparePacket(PAPPINFO pInfo,
+ USHORT iSeqNum)
+{
+ /* assemble ICMP echo request packet */
+ pInfo->SendPacket->icmpheader.type = ECHO_REQUEST;
+ pInfo->SendPacket->icmpheader.code = 0;
+ pInfo->SendPacket->icmpheader.checksum = 0;
+ pInfo->SendPacket->icmpheader.id = (USHORT)GetCurrentProcessId();
+ pInfo->SendPacket->icmpheader.seq = htons((USHORT)iSeqNum);
+
+ /* calculate checksum of packet */
+ pInfo->SendPacket->icmpheader.checksum = CheckSum((PUSHORT)&pInfo->SendPacket->icmpheader,
+ sizeof(ICMP_HEADER) + PACKET_SIZE);
+}
+
+static INT
+SendPacket(PAPPINFO pInfo)
+{
+ INT iSockRet;
+
+ DebugPrint(_T("\nsending packet of %d bytes... "), PACKET_SIZE);
+
+ /* get time packet was sent */
+ pInfo->lTimeStart = GetTime(pInfo);
+
+ iSockRet = sendto(pInfo->icmpSock, //socket
+ (char *)&pInfo->SendPacket->icmpheader,//buffer
+ sizeof(ICMP_HEADER) + PACKET_SIZE,//size of buffer
+ 0, //flags
+ (SOCKADDR *)&pInfo->dest, //destination
+ sizeof(pInfo->dest)); //address length
+
+ if (iSockRet == SOCKET_ERROR)
+ {
+ if (WSAGetLastError() == WSAEACCES)
+ {
+ /* FIXME: Is this correct? */
+ _tprintf(_T("\n\nYou must be an administrator to run this program!\n\n"));
+ WSACleanup();
+ HeapFree(GetProcessHeap(), 0, pInfo);
+ exit(-1);
+ }
+ else
+ {
+ DebugPrint(_T("sendto failed %d\n"), WSAGetLastError());
+ }
+ }
+ else
+ {
+ DebugPrint(_T("sent %d bytes\n"), iSockRet);
+ }
+
+ return iSockRet;
+}
+
+static BOOL
+ReceivePacket(PAPPINFO pInfo)
+{
+ TIMEVAL timeVal;
+ FD_SET readFDS;
+ INT iSockRet = 0, iSelRet;
+ INT iFromLen;
+ BOOL bRet = FALSE;
+
+ iFromLen = sizeof(pInfo->source);
+
+ DebugPrint(_T("Receiving packet. Available buffer, %d bytes... "), MAX_PING_PACKET_SIZE);
+
+ /* monitor icmpSock for incoming connections */
+ FD_ZERO(&readFDS);
+ FD_SET(pInfo->icmpSock, &readFDS);
+
+ /* set timeout values */
+ timeVal.tv_sec = pInfo->iTimeOut / 1000;
+ timeVal.tv_usec = pInfo->iTimeOut % 1000;
+
+ iSelRet = select(0,
+ &readFDS,
+ NULL,
+ NULL,
+ &timeVal);
+
+ if (iSelRet == SOCKET_ERROR)
+ {
+ DebugPrint(_T("select() failed in sendPacket() %d\n"), WSAGetLastError());
+ }
+ else if (iSelRet == 0) /* if socket timed out */
+ {
+ _tprintf(_T(" * "));
+ }
+ else if ((iSelRet != SOCKET_ERROR) && (iSelRet != 0))
+ {
+ iSockRet = recvfrom(pInfo->icmpSock, // socket
+ (char *)pInfo->RecvPacket, // buffer
+ MAX_PING_PACKET_SIZE, // size of buffer
+ 0, // flags
+ (SOCKADDR *)&pInfo->source, // source address
+ &iFromLen); // address length
+
+ if (iSockRet != SOCKET_ERROR)
+ {
+ /* get time packet was received */
+ pInfo->lTimeEnd = GetTime(pInfo);
+ DebugPrint(_T("received %d bytes\n"), iSockRet);
+ bRet = TRUE;
+ }
+ else
+ {
+ DebugPrint(_T("recvfrom failed: %d\n"), WSAGetLastError());
+ }
+ }
+
+ return bRet;
+}
+
+static INT
+DecodeResponse(PAPPINFO pInfo)
+{
+ unsigned short header_len = pInfo->RecvPacket->h_len * 4;
+
+ /* cast the received packet into an ECHO reply and a TTL Exceed and check the ID*/
+ ECHO_REPLY_HEADER *IcmpHdr = (ECHO_REPLY_HEADER *)((char*)pInfo->RecvPacket + header_len);
+
+ /* Make sure the reply is ok */
+ if (PACKET_SIZE < header_len + ICMP_MIN_SIZE)
+ {
+ DebugPrint(_T("too few bytes from %s\n"), inet_ntoa(pInfo->dest.sin_addr));
+ return -2;
+ }
+
+ switch (IcmpHdr->icmpheader.type)
+ {
+ case TTL_EXCEEDED :
+ _tprintf(_T("%3ld ms"), (ULONG)((pInfo->lTimeEnd - pInfo->lTimeStart) / pInfo->TicksPerMs.QuadPart));
+ return 0;
+
+ case ECHO_REPLY :
+ if (IcmpHdr->icmpheader.id != (USHORT)GetCurrentProcessId())
+ {
+ /* FIXME: our network stack shouldn't allow this... */
+ /* we've picked up a packet not related to this process probably from another local program. We ignore it */
+ DebugPrint(_T("Rouge packet: header id %d, process id %d"), IcmpHdr->icmpheader.id, GetCurrentProcessId());
+ return -1;
+ }
+ _tprintf(_T("%3ld ms"), (ULONG)((pInfo->lTimeEnd - pInfo->lTimeStart) / pInfo->TicksPerMs.QuadPart));
+ return 1;
+
+ case DEST_UNREACHABLE :
+ _tprintf(_T(" * "));
+ return 2;
+ }
+
+ return -3;
+}
+
+static BOOL
+AllocateBuffers(PAPPINFO pInfo)
+{
+ pInfo->SendPacket = (PECHO_REPLY_HEADER)HeapAlloc(GetProcessHeap(),
+ 0,
+ sizeof(ECHO_REPLY_HEADER) + PACKET_SIZE);
+ if (!pInfo->SendPacket)
+ return FALSE;
+
+ pInfo->RecvPacket = (PIPv4_HEADER)HeapAlloc(GetProcessHeap(),
+ 0,
+ MAX_PING_PACKET_SIZE);
+ if (!pInfo->RecvPacket)
+ {
+ HeapFree(GetProcessHeap(),
+ 0,
+ pInfo->SendPacket);
+
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static INT
+Driver(PAPPINFO pInfo)
+{
+ INT iHopCount = 1; // hop counter. default max is 30
+ BOOL bFoundTarget = FALSE; // Have we reached our destination yet
+ INT iReceiveReturn; // ReceiveReturn return value
+ PECHO_REPLY_HEADER icmphdr;
+ INT iTTL = 1;
+
+ INT ret = -1;
+
+ //temps for getting host name
+ CHAR cHost[256];
+ CHAR cServ[256];
+ CHAR *ip;
+
+ SetupTimingMethod(pInfo);
+
+ if (AllocateBuffers(pInfo) &&
+ ResolveHostname(pInfo) &&
+ CreateSocket(pInfo))
+ {
+ /* print tracing info to screen */
+ _tprintf(_T("\nTracing route to %s [%s]\n"), cHostname, cDestIP);
+ _tprintf(_T("over a maximum of %d hop"), pInfo->iMaxHops);
+ pInfo->iMaxHops > 1 ? _tprintf(_T("s:\n\n")) : _tprintf(_T(":\n\n"));
+
+ /* run until we hit either max hops, or find the target */
+ while ((iHopCount <= pInfo->iMaxHops) &&
+ (bFoundTarget == FALSE))
+ {
+ USHORT iSeqNum = 0;
+ INT i;
+
+ _tprintf(_T("%3d "), iHopCount);
+
+ /* run 3 pings for each hop */
+ for (i = 0; i < 3; i++)
+ {
+ if (SetTTL(pInfo->icmpSock, iTTL) == FALSE)
+ {
+ DebugPrint(_T("error in Setup()\n"));
+ return ret;
+ }
+
+ PreparePacket(pInfo, iSeqNum);
+
+ if (SendPacket(pInfo) != SOCKET_ERROR)
+ {
+ BOOL bAwaitPacket = FALSE; // indicates whether we have received a good packet
+
+ do
+ {
+ /* Receive replies until we get a successful read, or a fatal error */
+ if ((iReceiveReturn = ReceivePacket(pInfo)) < 0)
+ {
+ /* FIXME: consider moving this into ReceivePacket */
+ /* check the seq num in the packet, if it's bad wait for another */
+ WORD hdrLen = pInfo->RecvPacket->h_len * 4;
+ icmphdr = (ECHO_REPLY_HEADER *)((char*)&pInfo->RecvPacket + hdrLen);
+ if (icmphdr->icmpheader.seq != iSeqNum)
+ {
+ _tprintf(_T("bad sequence number!\n"));
+ continue;
+ }
+ }
+
+ if (iReceiveReturn)
+ {
+ if (DecodeResponse(pInfo) < 0)
+ bAwaitPacket = TRUE;
+ }
+
+ } while (bAwaitPacket);
+ }
+
+ iSeqNum++;
+ _tprintf(_T(" "));
+ }
+
+ if(pInfo->bResolveAddresses)
+ {
+ INT iNameInfoRet; // getnameinfo return value
+ /* gethostbyaddr() and getnameinfo() are
+ * unimplemented in ROS at present.
+ * Alex has advised he will be implementing getnameinfo.
+ * I've used that for the time being for testing in Windows*/
+
+ //ip = inet_addr(inet_ntoa(source.sin_addr));
+ //host = gethostbyaddr((char *)&ip, 4, 0);
+
+ ip = inet_ntoa(pInfo->source.sin_addr);
+
+ iNameInfoRet = getnameinfo((SOCKADDR *)&pInfo->source,
+ sizeof(SOCKADDR),
+ cHost,
+ 256,
+ cServ,
+ 256,
+ NI_NUMERICSERV);
+ if (iNameInfoRet == 0)
+ {
+ /* if IP address resolved to a hostname,
+ * print the IP address after it */
+ if (lstrcmpA(cHost, ip) != 0)
+ _tprintf(_T("%s [%s]"), cHost, ip);
+ else
+ _tprintf(_T("%s"), cHost);
+ }
+ else
+ {
+ DebugPrint(_T("error: %d"), WSAGetLastError());
+ DebugPrint(_T(" getnameinfo failed: %d"), iNameInfoRet);
+ _tprintf(_T("%s"), inet_ntoa(pInfo->source.sin_addr));
+ }
+
+ }
+ else
+ _tprintf(_T("%s"), inet_ntoa(pInfo->source.sin_addr));
+
+ _tprintf(_T("\n"));
+
+ /* check if we've arrived at the target */
+ if (strcmp(cDestIP, inet_ntoa(pInfo->source.sin_addr)) == 0)
+ bFoundTarget = TRUE;
+ else
+ {
+ iTTL++;
+ iHopCount++;
+ Sleep(500);
+ }
+ }
+ _tprintf(_T("\nTrace complete.\n"));
+ ret = 0;
+ }
+
+ return ret;
+}
+
+static VOID
+Cleanup(PAPPINFO pInfo)
+{
+ if (pInfo->icmpSock)
+ closesocket(pInfo->icmpSock);
+
+ WSACleanup();
+
+ if (pInfo->SendPacket)
+ HeapFree(GetProcessHeap(),
+ 0,
+ pInfo->SendPacket);
+
+ if (pInfo->RecvPacket)
+ HeapFree(GetProcessHeap(),
+ 0,
+ pInfo->RecvPacket);
+}
+
+#if defined(_UNICODE) && defined(__GNUC__)
+static
+#endif
+int _tmain(int argc, LPCTSTR argv[])
+{
+ PAPPINFO pInfo;
+ WSADATA wsaData;
+ int ret = -1;
+
+ pInfo = (PAPPINFO)HeapAlloc(GetProcessHeap(),
+ HEAP_ZERO_MEMORY,
+ sizeof(APPINFO));
+ if (pInfo)
+ {
+ pInfo->bResolveAddresses = TRUE;
+ pInfo->iMaxHops = 30;
+ pInfo->iTimeOut = 1000;
+
+ if (ParseCmdline(argc, argv, pInfo))
+ {
+ if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
+ {
+ DebugPrint(_T("WSAStartup failed.\n"));
+ }
+ else
+ {
+ ret = Driver(pInfo);
+ Cleanup(pInfo);
+ }
+ }
+
+ HeapFree(GetProcessHeap(),
+ 0,
+ pInfo);
+ }
+
+ return ret;
+}
+
+#if defined(_UNICODE) && defined(__GNUC__)
+/* HACK - MINGW HAS NO OFFICIAL SUPPORT FOR wmain()!!! */
+int main( int argc, char **argv )
+{
+ WCHAR **argvW;
+ int i, j, Ret = 1;
+
+ if ((argvW = malloc(argc * sizeof(WCHAR*))))
+ {
+ /* convert the arguments */
+ for (i = 0, j = 0; i < argc; i++)
+ {
+ if (!(argvW[i] = malloc((strlen(argv[i]) + 1) * sizeof(WCHAR))))
+ {
+ j++;
+ }
+ swprintf(argvW[i], L"%hs", argv[i]);
+ }
+
+ if (j == 0)
+ {
+ /* no error converting the parameters, call wmain() */
+ Ret = wmain(argc, (LPCTSTR *)argvW);
+ }
+
+ /* free the arguments */
+ for (i = 0; i < argc; i++)
+ {
+ if (argvW[i])
+ free(argvW[i]);
+ }
+ free(argvW);
+ }
+
+ return Ret;
+}
+#endif
projects / reactos.git / blobdiff