-/*
- * ReactOS Win32 Applications
- * Copyright (C) 2005 ReactOS Team
+ /*
+ * PROJECT: ReactOS trace route utility
+ * LICENSE: GPL - See COPYING in the top level directory
+ * FILE: base/applications/network/tracert.c
+ * PURPOSE: Trace network paths through networks
+ * COPYRIGHT: Copyright 2006 - 2007 Ged Murphy <gedmurphy@reactos.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS traceroute utility
- * FILE: apps/utils/net/tracert/tracert.c
- * PURPOSE: trace a packets route through a network
- * PROGRAMMERS: Ged Murphy (gedmurphy@gmail.com)
- * REVISIONS:
- * GM 03/05/05 Created
- *
- */
-
-#include <winsock2.h>
-#include <tchar.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <ws2tcpip.h>
-#include <string.h>
-#include <time.h>
#include "tracert.h"
-#define WIN32_LEAN_AND_MEAN
+//#define TRACERT_DBG
-#ifdef DBG
-#undef DBG
-#endif
+CHAR cHostname[256]; // target hostname
+CHAR cDestIP[18]; // target IP
-/*
- * globals
- */
-SOCKET icmpSock; // socket descriptor
-SOCKADDR_IN source, dest; // source and destination address info
-ECHO_REPLY_HEADER sendpacket; // ICMP echo packet
-IPv4_HEADER recvpacket; // return reveive packet
-BOOL bUsePerformanceCounter; // whether to use the high res performance counter
-LARGE_INTEGER TicksPerMs; // number of millisecs in relation to proc freq
-LARGE_INTEGER TicksPerUs; // number of microsecs in relation to proc freq
-LONGLONG lTimeStart; // send packet, timer start
-LONGLONG lTimeEnd; // receive packet, timer end
+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
+}
-CHAR cHostname[256]; // target hostname
-CHAR cDestIP[18]; // target IP
+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"));
-/*
- * command line options
- */
-BOOL bResolveAddresses = TRUE; // -d MS ping defaults to true.
-INT iMaxHops = 30; // -h Max number of hops before trace ends
-INT iHostList; // -j @UNIMPLEMENTED@
-INT iTimeOut = 2000; // -w time before packet times out
+ _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"));
+}
-/*
- *
- * Parse command line parameters and set any options
- *
- */
-static BOOL ParseCmdline(int argc, char* argv[])
+static BOOL
+ParseCmdline(int argc,
+ LPCTSTR argv[],
+ PAPPINFO pInfo)
{
- int i;
+ INT i;
if (argc < 2)
{
Usage();
return FALSE;
}
-
- for (i = 1; i < argc; i++)
+ else
{
- if (argv[i][0] == '-')
+ for (i = 1; i < argc; i++)
{
- switch (argv[i][1])
+ if (argv[i][0] == _T('-'))
{
- case 'd': bResolveAddresses = FALSE;
- break;
- case 'h': sscanf(argv[i+1], "%d", &iMaxHops);
- break;
- case 'j': break; /* @unimplemented@ */
- case 'w': sscanf(argv[i+1], "%d", &iTimeOut);
- break;
- default:
- _tprintf(_T("%s is not a valid option.\n"), argv[i]);
- Usage();
- return FALSE;
- }
- }
- else
- /* copy target address */
- strncpy(cHostname, argv[i], 255);
- }
-
- return TRUE;
-}
-
-
-
-/*
- *
- * Driver function, controls the traceroute program
- *
- */
-static INT Driver(VOID)
-{
-
- INT iHopCount = 1; // hop counter. default max is 30
- USHORT iSeqNum = 0; // initialise packet sequence number
- INT iTTL = 1; // set initial packet TTL to 1
- BOOL bFoundTarget = FALSE; // Have we reached our destination yet
- BOOL bAwaitPacket; // indicates whether we have recieved a good packet
- INT iDecRes; // DecodeResponse return value
- INT iRecieveReturn; // RecieveReturn return value
- INT iNameInfoRet; // getnameinfo return value
- INT iPacketSize = PACKET_SIZE; // packet size
- WORD wHeaderLen; // header length
- PECHO_REPLY_HEADER icmphdr;
-
-
- //temps for getting host name
- CHAR cHost[256];
- CHAR cServ[256];
- CHAR *ip;
-
- /* setup winsock */
- WSADATA wsaData;
-
- /* check for winsock 2 */
- if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
- {
-#ifdef DBG
- _tprintf(_T("WSAStartup failed.\n"));
-#endif /* DBG */
- exit(1);
- }
-
- /* establish what timing method we can use */
- SetupTimingMethod();
+ switch (argv[i][1])
+ {
+ case _T('d'):
+ pInfo->bResolveAddresses = FALSE;
+ break;
- /* setup target info */
- ResolveHostname();
+ case _T('h'):
+ _stscanf(argv[i+1], _T("%d"), &pInfo->iMaxHops);
+ break;
- /* print standard tracing info to screen */
- _tprintf(_T("\nTracing route to %s [%s]\n"), cHostname, cDestIP);
- _tprintf(_T("over a maximum of %d hop"), iMaxHops);
- iMaxHops > 1 ? _tprintf(_T("s:\n\n")) : _tprintf(_T(":\n\n"));
+ case _T('j'):
+ _tprintf(_T("-j is not yet implemented.\n"));
+ break;
- /* run until we hit either max hops, or we recieve 3 echo replys */
- while ((iHopCount <= iMaxHops) && (bFoundTarget != TRUE))
- {
- INT i;
-
- _tprintf(_T("%3d "), iHopCount);
- /* run 3 pings for each hop */
- for (i=0; i<3; i++)
- {
- if (Setup(iTTL) != TRUE)
- {
-#ifdef DBG
- _tprintf(_T("error in Setup()\n"));
-#endif /* DBG */
- WSACleanup();
- exit(1);
- }
- PreparePacket(iPacketSize, iSeqNum);
- if (SendPacket(iPacketSize) != SOCKET_ERROR)
- {
- /* loop until we get a good packet */
- bAwaitPacket = TRUE;
- while (bAwaitPacket)
- {
- /* Receive replies until we either get a successful
- * read, or a fatal error occurs. */
- if ((iRecieveReturn = ReceivePacket(iPacketSize)) < 0)
- {
- /* check the sequence number in the packet
- * if it's bad, complain and wait for another packet
- * , otherwise break */
- wHeaderLen = recvpacket.h_len * 4;
- icmphdr = (ECHO_REPLY_HEADER *)((char*)&recvpacket + wHeaderLen);
- if (icmphdr->icmpheader.seq != iSeqNum)
- {
- _tprintf(_T("bad sequence number!\n"));
- continue;
- }
- else
- break;
- }
+ case _T('w'):
+ _stscanf(argv[i+1], _T("%d"), &pInfo->iTimeOut);
+ break;
- /* if RecievePacket timed out we don't bother decoding */
- if (iRecieveReturn != 1)
+ default:
{
- iDecRes = DecodeResponse(iPacketSize, iSeqNum);
-
- switch (iDecRes)
- {
- case 0 : bAwaitPacket = FALSE; /* time exceeded */
- break;
- case 1 : bAwaitPacket = FALSE; /* echo reply */
- break;
- case 2 : bAwaitPacket = FALSE; /* destination unreachable */
- break;
-#ifdef DBG
- case -1 :
- _tprintf(_T("recieved foreign packet\n"));
- break;
- case -2 :
- _tprintf(_T("error in DecodeResponse\n"));
- break;
- case -3 :
- _tprintf(_T("unknown ICMP packet\n"));
- break;
-#endif /* DBG */
- default : break;
- }
+ _tprintf(_T("%s is not a valid option.\n"), argv[i]);
+ Usage();
+ return FALSE;
}
- else
- /* packet timed out. Don't wait for it again */
- bAwaitPacket = FALSE;
}
}
-
- iSeqNum++;
- _tprintf(_T(" "));
+ else
+ /* copy target address */
+ _tcsncpy(cHostname, argv[i], 255);
}
+ }
- if(bResolveAddresses)
- {
- /* 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(source.sin_addr);
-
- iNameInfoRet = getnameinfo((SOCKADDR *)&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
- {
- _tprintf(_T("error: %d"), WSAGetLastError());
-#ifdef DBG
- _tprintf(_T(" getnameinfo failed: %d"), iNameInfoRet);
-#endif /* DBG */
- }
+ return TRUE;
+}
- }
- else
- _tprintf(_T("%s"), inet_ntoa(source.sin_addr));
- _tprintf(_T("\n"));
+static WORD
+CheckSum(PUSHORT data,
+ UINT size)
+{
+ DWORD dwSum = 0;
- /* check if we've arrived at the target */
- if (strcmp(cDestIP, inet_ntoa(source.sin_addr)) == 0)
- bFoundTarget = TRUE;
- else
- {
- iTTL++;
- iHopCount++;
- Sleep(500);
- }
+ while (size > 1)
+ {
+ dwSum += *data++;
+ size -= sizeof(USHORT);
}
- _tprintf(_T("\nTrace complete.\n"));
- WSACleanup();
- return 0;
+ if (size)
+ dwSum += *(UCHAR*)data;
+
+ dwSum = (dwSum >> 16) + (dwSum & 0xFFFF);
+ dwSum += (dwSum >> 16);
+
+ return (USHORT)(~dwSum);
}
-/*
- * Establish if performance counters are available and
- * set up timing figures in relation to processor frequency.
- * If performance counters are not available, we'll be using
- * gettickcount, so set the figures to 1
- *
- */
-static VOID SetupTimingMethod(VOID)
+static VOID
+SetupTimingMethod(PAPPINFO pInfo)
{
LARGE_INTEGER PerformanceCounterFrequency;
/* check if performance counters are available */
- bUsePerformanceCounter = QueryPerformanceFrequency(&PerformanceCounterFrequency);
- if (bUsePerformanceCounter)
+ pInfo->bUsePerformanceCounter = QueryPerformanceFrequency(&PerformanceCounterFrequency);
+
+ if (pInfo->bUsePerformanceCounter)
{
/* restrict execution to first processor on SMP systems */
if (SetThreadAffinityMask(GetCurrentThread(), 1) == 0)
- bUsePerformanceCounter = FALSE;
+ pInfo->bUsePerformanceCounter = FALSE;
- TicksPerMs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000;
- TicksPerUs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000000;
+ pInfo->TicksPerMs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000;
+ pInfo->TicksPerUs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000000;
}
-
- if (!bUsePerformanceCounter)
+ else
{
- TicksPerMs.QuadPart = 1;
- TicksPerUs.QuadPart = 1;
+ pInfo->TicksPerMs.QuadPart = 1;
+ pInfo->TicksPerUs.QuadPart = 1;
}
}
-/*
- *
- * Check for a hostname or dotted deciamal for our target.
- * If we have a hostname, resolve to an IP and store it, else
- * just store the target IP address. Also set up other key
- * SOCKADDR_IN members needed for the connection.
- *
- */
-static VOID ResolveHostname(VOID)
+static BOOL
+ResolveHostname(PAPPINFO pInfo)
{
HOSTENT *hp;
ULONG addr;
- memset(&dest, 0, sizeof(dest));
+ ZeroMemory(&pInfo->dest, sizeof(pInfo->dest));
- addr = inet_addr(cHostname);
/* if address is not a dotted decimal */
- if (addr == INADDR_NONE)
+ if ((addr = inet_addr(cHostname))== INADDR_NONE)
{
- hp = gethostbyname(cHostname);
- if (hp != 0)
+ if ((hp = gethostbyname(cHostname)) != 0)
{
- memcpy(&dest.sin_addr, hp->h_addr, hp->h_length);
- //dest.sin_addr = *((struct in_addr *)hp->h_addr);
- dest.sin_family = hp->h_addrtype;
+ //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);
- WSACleanup();
- exit(1);
+ return FALSE;
}
}
else
{
- dest.sin_addr.s_addr = addr;
- dest.sin_family = AF_INET;
+ pInfo->dest.sin_addr.s_addr = addr;
+ pInfo->dest.sin_family = AF_INET;
}
- /* copy destination IP address into a string */
- strcpy(cDestIP, inet_ntoa(dest.sin_addr));
-}
+ _tcscpy(cDestIP, inet_ntoa(pInfo->dest.sin_addr));
+ return TRUE;
+}
-/*
- *
- * Create our socket which will be used for sending and recieving,
- * Socket Type is raw, Protocol is ICMP. Also set the TTL value which will be
- * set in the outgoing IP packet.
- *
- */
-static INT Setup(INT iTTL)
+
+static LONGLONG
+GetTime(PAPPINFO pInfo)
{
- INT iSockRet;
+ LARGE_INTEGER Time;
- /* create raw socket */
- icmpSock = WSASocket(AF_INET, SOCK_RAW, IPPROTO_ICMP, 0, 0, 0);
- if (icmpSock == INVALID_SOCKET)
+ /* Get the system time using preformance counters if available */
+ if (pInfo->bUsePerformanceCounter)
{
- _tprintf(_T("Could not create socket : %d.\n"), WSAGetLastError());
- if (WSAGetLastError() == WSAEACCES)
- {
- _tprintf(_T("\n\nYou must be an administrator to run this program!\n\n"));
- WSACleanup();
- exit(1);
- }
- return FALSE;
+ if (QueryPerformanceCounter(&Time))
+ {
+ return Time.QuadPart;
+ }
}
- /* setup for TTL */
- iSockRet = setsockopt(icmpSock, IPPROTO_IP, IP_TTL, (const char *)&iTTL, sizeof(iTTL));
- if (iSockRet == SOCKET_ERROR)
+ /* 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)
{
- _tprintf(_T("TTL setsockopt failed : %d. \n"), WSAGetLastError());
+ DebugPrint(_T("TTL setsockopt failed : %d. \n"), WSAGetLastError());
return FALSE;
}
}
+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);
-/*
- * Prepare the ICMP echo request packet for sending.
- * Calculate the packet checksum
- *
- */
-static VOID PreparePacket(INT iPacketSize, USHORT iSeqNum)
+ 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 */
- sendpacket.icmpheader.type = ECHO_REQUEST;
- sendpacket.icmpheader.code = 0;
- sendpacket.icmpheader.checksum = 0;
- sendpacket.icmpheader.id = (USHORT)GetCurrentProcessId();
- sendpacket.icmpheader.seq = iSeqNum;
+ 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 */
- sendpacket.icmpheader.checksum = CheckSum((PUSHORT)&sendpacket, sizeof(ICMP_HEADER) + iPacketSize);
+ pInfo->SendPacket->icmpheader.checksum = CheckSum((PUSHORT)&pInfo->SendPacket->icmpheader,
+ sizeof(ICMP_HEADER) + PACKET_SIZE);
}
-
-/*
- *
- * Get the system time and send the ICMP packet to the destination
- * address.
- *
- */
-static INT SendPacket(INT datasize)
+static INT
+SendPacket(PAPPINFO pInfo)
{
INT iSockRet;
- INT iPacketSize;
-
- iPacketSize = sizeof(ECHO_REPLY_HEADER) + datasize;
-#ifdef DBG
- _tprintf(_T("\nsending packet of %d bytes\n"), iPacketSize);
-#endif /* DBG */
+ DebugPrint(_T("\nsending packet of %d bytes... "), PACKET_SIZE);
/* get time packet was sent */
- lTimeStart = GetTime();
+ pInfo->lTimeStart = GetTime(pInfo);
- iSockRet = sendto(icmpSock, //socket
- (char *)&sendpacket, //buffer
- iPacketSize, //size of buffer
- 0, //flags
- (SOCKADDR *)&dest, //destination
- sizeof(dest)); //address length
+ 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();
- exit(1);
+ HeapFree(GetProcessHeap(), 0, pInfo);
+ exit(-1);
}
else
{
-#ifdef DBG
- _tprintf(_T("sendto failed %d\n"), WSAGetLastError());
-#endif /* DBG */
- return FALSE;
+ DebugPrint(_T("sendto failed %d\n"), WSAGetLastError());
}
}
-#ifdef DBG
- _tprintf(_T("sent %d bytes\n"), iSockRet);
-#endif /* DBG */
+ else
+ {
+ DebugPrint(_T("sent %d bytes\n"), iSockRet);
+ }
- /* return number of bytes sent */
return iSockRet;
}
-
-/*
- *
- * Set up a timeout value and put the socket in a select poll.
- * Wait until we recieve an IPv4 reply packet in reply to the ICMP
- * echo request packet and get the time the packet was recieved.
- * If we don't recieve a packet, do some checking to establish why.
- *
- */
-static INT ReceivePacket(INT datasize)
+static BOOL
+ReceivePacket(PAPPINFO pInfo)
{
TIMEVAL timeVal;
FD_SET readFDS;
- int iSockRet = 0, iSelRet;
- int iFromLen;
- int iPacketSize;
+ INT iSockRet = 0, iSelRet;
+ INT iFromLen;
+ BOOL bRet = FALSE;
- /* allow for a larger recv buffer to store ICMP TTL
- * exceed, IP header and orginal ICMP request */
- iPacketSize = MAX_REC_SIZE + datasize;
+ iFromLen = sizeof(pInfo->source);
- iFromLen = sizeof(source);
-
-#ifdef DBG
- _tprintf(_T("receiving packet. Available buffer, %d bytes\n"), iPacketSize);
-#endif /* DBG */
+ DebugPrint(_T("Receiving packet. Available buffer, %d bytes... "), MAX_PING_PACKET_SIZE);
/* monitor icmpSock for incomming connections */
FD_ZERO(&readFDS);
- FD_SET(icmpSock, &readFDS);
+ FD_SET(pInfo->icmpSock, &readFDS);
/* set timeout values */
- timeVal.tv_sec = iTimeOut / 1000;
- timeVal.tv_usec = iTimeOut % 1000;
+ timeVal.tv_sec = pInfo->iTimeOut / 1000;
+ timeVal.tv_usec = pInfo->iTimeOut % 1000;
- iSelRet = select(0, &readFDS, NULL, NULL, &timeVal);
+ iSelRet = select(0,
+ &readFDS,
+ NULL,
+ NULL,
+ &timeVal);
- if ((iSelRet != SOCKET_ERROR) && (iSelRet != 0))
+ if (iSelRet == SOCKET_ERROR)
{
- iSockRet = recvfrom(icmpSock, //socket
- (char *)&recvpacket, //buffer
- iPacketSize, //size of buffer
- 0, //flags
- (SOCKADDR *)&source, //source address
- &iFromLen); //pointer to address length
- /* get time packet was recieved */
- lTimeEnd = GetTime();
- /* if socket timed out */
+ DebugPrint(_T("select() failed in sendPacket() %d\n"), WSAGetLastError());
}
- else if (iSelRet == 0)
+ else if (iSelRet == 0) /* if socket timed out */
{
_tprintf(_T(" * "));
- return 1;
}
- else if (iSelRet == SOCKET_ERROR)
+ else if ((iSelRet != SOCKET_ERROR) && (iSelRet != 0))
{
- _tprintf(_T("select() failed in sendPacket() %d\n"), WSAGetLastError());
- return -1;
- }
-
-
- if (iSockRet == SOCKET_ERROR)
- {
- _tprintf(_T("recvfrom failed: %d\n"), WSAGetLastError());
- return -2;
+ 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 recieved */
+ pInfo->lTimeEnd = GetTime(pInfo);
+ DebugPrint(_T("reveived %d bytes\n"), iSockRet);
+ bRet = TRUE;
+ }
+ else
+ {
+ DebugPrint(_T("recvfrom failed: %d\n"), WSAGetLastError());
+ }
}
-#ifdef DBG
- else
- _tprintf(_T("reveived %d bytes\n"), iSockRet);
-#endif /* DBG */
- return 0;
+ return bRet;
}
-
-/*
- *
- * Cast the IPv4 packet to an echo reply and to a TTL exceed.
- * Check the 'type' field to establish what was recieved, and
- * ensure the packet is related to the originating process.
- * It all is well, print the time taken for the round trip.
- *
- */
-static INT DecodeResponse(INT iPacketSize, USHORT iSeqNum)
+static INT
+DecodeResponse(PAPPINFO pInfo)
{
- unsigned short header_len = recvpacket.h_len * 4;
- /* cast the recieved packet into an ECHO reply and a TTL Exceed so we can check the ID*/
- ECHO_REPLY_HEADER *IcmpHdr = (ECHO_REPLY_HEADER *)((char*)&recvpacket + header_len);
- TTL_EXCEED_HEADER *TTLExceedHdr = (TTL_EXCEED_HEADER *)((char *)&recvpacket + header_len);
+ unsigned short header_len = pInfo->RecvPacket->h_len * 4;
+
+ /* cast the recieved 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);
+ TTL_EXCEED_HEADER *TTLExceedHdr = (TTL_EXCEED_HEADER *)((char *)pInfo->RecvPacket + header_len);
/* Make sure the reply is ok */
- if (iPacketSize < header_len + ICMP_MIN_SIZE)
+ if (PACKET_SIZE < header_len + ICMP_MIN_SIZE)
{
- _tprintf(_T("too few bytes from %s\n"), inet_ntoa(dest.sin_addr));
+ DebugPrint(_T("too few bytes from %s\n"), inet_ntoa(pInfo->dest.sin_addr));
return -2;
}
case TTL_EXCEEDED :
if (TTLExceedHdr->OrigIcmpHeader.id != (USHORT)GetCurrentProcessId())
{
- /* FIXME */
- /* we've picked up a packet not related to this process
- * probably from another local program. We ignore it */
-#ifdef DGB
- _tprintf(_T("header id, process id %d"), TTLExceedHdr->OrigIcmpHeader.id, GetCurrentProcessId());
-#endif /* DBG */
- //_tprintf(_T("oops ");
+ /* 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, process id %d"), TTLExceedHdr->OrigIcmpHeader.id, GetCurrentProcessId());
return -1;
}
- _tprintf(_T("%3Ld ms"), (lTimeEnd - lTimeStart) / TicksPerMs.QuadPart);
+ _tprintf(_T("%3ld ms"), (ULONG)((pInfo->lTimeEnd - pInfo->lTimeStart) / pInfo->TicksPerMs.QuadPart));
return 0;
+
case ECHO_REPLY :
if (IcmpHdr->icmpheader.id != (USHORT)GetCurrentProcessId())
{
- /* FIXME */
- /* we've picked up a packet not related to this process
- * probably from another local program. We ignore it */
-#ifdef DGB
- _tprintf(_T("\nPicked up wrong packet. icmpheader.id = %d and process id = %d"), IcmpHdr->icmpheader.id, GetCurrentProcessId());
-#endif /* DBG */
- //_tprintf(_T("oops ");
+ /* 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"), (lTimeEnd - lTimeStart) / TicksPerMs.QuadPart);
+ _tprintf(_T("%3ld ms"), (ULONG)((pInfo->lTimeEnd - pInfo->lTimeStart) / pInfo->TicksPerMs.QuadPart));
return 1;
+
case DEST_UNREACHABLE :
_tprintf(_T(" * "));
return 2;
- default :
- /* unknown ICMP packet */
- return -3;
}
+
+ return 0;
}
-/*
- *
- * Get the system time using preformance counters if available,
- * otherwise fall back to GetTickCount()
- *
- */
+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,
+ sizeof(IPv4_HEADER) + PACKET_SIZE);
+ if (!pInfo->RecvPacket)
+ {
+ HeapFree(GetProcessHeap(),
+ 0,
+ pInfo->SendPacket);
-static LONGLONG GetTime(VOID)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+static INT
+Driver(PAPPINFO pInfo)
{
- LARGE_INTEGER Time;
+ INT iHopCount = 1; // hop counter. default max is 30
+ BOOL bFoundTarget = FALSE; // Have we reached our destination yet
+ INT iRecieveReturn; // RecieveReturn return value
+ PECHO_REPLY_HEADER icmphdr;
+ INT iTTL = 1;
+
+ INT ret = -1;
- if (bUsePerformanceCounter)
+ //temps for getting host name
+ CHAR cHost[256];
+ CHAR cServ[256];
+ CHAR *ip;
+
+ SetupTimingMethod(pInfo);
+
+ if (AllocateBuffers(pInfo) &&
+ ResolveHostname(pInfo) &&
+ CreateSocket(pInfo))
{
- if (QueryPerformanceCounter(&Time) == 0)
+ /* 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 != TRUE))
{
- Time.u.LowPart = (DWORD)GetTickCount();
- Time.u.HighPart = 0;
- return (LONGLONG)Time.u.LowPart;
+ 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) != TRUE)
+ {
+ DebugPrint(_T("error in Setup()\n"));
+ return ret;
+ }
+
+ PreparePacket(pInfo, iSeqNum);
+
+ if (SendPacket(pInfo) != SOCKET_ERROR)
+ {
+ BOOL bAwaitPacket = FALSE; // indicates whether we have recieved a good packet
+
+ do
+ {
+ /* Receive replies until we get a successful read, or a fatal error */
+ if ((iRecieveReturn = ReceivePacket(pInfo)) < 0)
+ {
+ /* FIXME: consider moving this into RecievePacket */
+ /* 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 (iRecieveReturn)
+ {
+ DecodeResponse(pInfo);
+ }
+ else
+ /* packet timed out. Don't wait for it again */
+ bAwaitPacket = FALSE;
+
+ } 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);
+ }
+
+ }
+ 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;
}
- else
- {
- Time.u.LowPart = (DWORD)GetTickCount();
- Time.u.HighPart = 0;
- return (LONGLONG)Time.u.LowPart;
- }
- return Time.QuadPart;
+
+ return ret;
}
-/*
- *
- * Calculate packet checksum.
- *
- */
-static WORD CheckSum(PUSHORT data, UINT size)
+static VOID
+Cleanup(PAPPINFO pInfo)
{
- DWORD dwSum = 0;
-
- while (size > 1)
- {
- dwSum += *data++;
- size -= sizeof(USHORT);
- }
+ if (pInfo->icmpSock)
+ closesocket(pInfo->icmpSock);
- if (size)
- dwSum += *(UCHAR*)data;
+ WSACleanup();
- dwSum = (dwSum >> 16) + (dwSum & 0xFFFF);
- dwSum += (dwSum >> 16);
+ if (pInfo->SendPacket)
+ HeapFree(GetProcessHeap(),
+ 0,
+ pInfo->SendPacket);
- return (USHORT)(~dwSum);
+ if (pInfo->RecvPacket)
+ HeapFree(GetProcessHeap(),
+ 0,
+ pInfo->RecvPacket);
}
-/*
- *
- * print program usage to screen
- *
- */
-static VOID Usage(VOID)
+#if defined(_UNICODE) && defined(__GNUC__)
+static
+#endif
+int _tmain(int argc, LPCTSTR argv[])
{
- _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"));
+ PAPPINFO pInfo;
+ WSADATA wsaData;
+ int ret = -1;
- /* temp notes to stop user questions until getnameinfo/gethostbyaddr and getsockopt are implemented */
- _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"));
-}
+ 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);
+ }
-/*
- *
- * Program entry point
- *
- */
-int main(int argc, char* argv[])
+ return ret;
+}
+
+
+#if defined(_UNICODE) && defined(__GNUC__)
+/* HACK - MINGW HAS NO OFFICIAL SUPPORT FOR wmain()!!! */
+int main( int argc, char **argv )
{
- if (!ParseCmdline(argc, argv)) return -1;
+ 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]);
+ }
- Driver();
+ if (j == 0)
+ {
+ /* no error converting the parameters, call wmain() */
+ Ret = wmain(argc, (LPCTSTR *)argvW);
+ }
- return 0;
+ /* free the arguments */
+ for (i = 0; i < argc; i++)
+ {
+ if (argvW[i])
+ free(argvW[i]);
+ }
+ free(argvW);
+ }
+
+ return Ret;
}
+#endif
projects / reactos.git / blobdiff