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701 lines
16 KiB
701 lines
16 KiB
//++
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//
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// Copyright (C) Microsoft Corporation, 1987 - 1999
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//
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// Module Name:
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//
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// route.c
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//
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// Abstract:
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//
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// Queries into network drivers
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//
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// Author:
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//
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// Anilth - 4-20-1998
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//
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// Environment:
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//
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// User mode only.
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// Contains NT-specific code.
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//
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// Revision History:
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//
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//--
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#include "precomp.h"
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//
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// Rajkumar - Two Functions from iphlpapi.dll
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//
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DWORD
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WINAPI
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GetIpAddrTable(
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OUT PMIB_IPADDRTABLE pIpAddrTable,
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IN OUT PULONG pdwSize,
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IN BOOL bOrder
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);
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DWORD
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InternalGetIpForwardTable(
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OUT MIB_IPFORWARDTABLE **ppIpForwardTable,
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IN HANDLE hHeap,
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IN DWORD dwAllocFlags
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);
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//--------------------------------------------------------
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//functions defined in this file
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void MapInterface(char *IPAddr, ULONG IfIndex);
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BOOLEAN ImprovedInetAddr(char *AddressString, ULONG *AddressValue);
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HRESULT
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PrintRoute(
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NETDIAG_RESULT *pResults,
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char *Dest,
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ULONG DestVal,
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char *Gate,
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ULONG GateVal,
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BOOLEAN Persistent,
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const char * DestPat
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);
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LPCTSTR
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PrintRouteEntry(
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ULONG Dest,
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ULONG Mask,
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ULONG Gate,
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ULONG Interface,
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ULONG Metric1
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);
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HRESULT
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PrintPersistentRoutes(
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NETDIAG_RESULT *pResults,
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char* Dest,
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ULONG DestVal,
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char* Gate,
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ULONG GateVal
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);
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BOOL
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RouteTest(NETDIAG_PARAMS* pParams, NETDIAG_RESULT* pResults)
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/*++
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Routine Description:
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Enumerate the static and persistent entries in the routing table
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Arguments:
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None.
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Return Value:
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TRUE
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Author:
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Rajkumar 06/27/98
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--*/
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{
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HRESULT hr = S_OK;
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//$REVIEW only perform the test when is really verbose
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if (!pParams->fReallyVerbose)
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return hr;
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PrintStatusMessage( pParams, 4, IDS_ROUTE_STATUS_MSG );
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//
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// Print all static entries in the ip forward table
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//
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hr = PrintRoute(pResults,
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"*",
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WILD_CARD,
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"*",
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WILD_CARD,
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TRUE,
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"*"
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);
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//
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// Print all the persistent route entries
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//
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if( S_OK == hr )
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hr = PrintPersistentRoutes(pResults,
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"*",
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WILD_CARD,
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"*",
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WILD_CARD
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);
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pResults->Route.hrTestResult = hr;
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return hr;
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}
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HRESULT
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PrintRoute(
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NETDIAG_RESULT *pResults,
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char *Dest,
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ULONG DestVal,
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char *Gate,
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ULONG GateVal,
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BOOLEAN Persistent,
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const char * DestPat
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)
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/*++
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Routine Description:
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This routine prints all the static entries in then IP forward table.
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The entry in the routing table is declared static if the type of the
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entry is MIB_IPPROTO_LOCAL.
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Arguments:
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char *Dest: pointer to destination IP address string. This
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is NULL if no value was provided/no filtering desired.
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ULONG DestVal: value of destination IP address to filter route
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table with. If Dest is NULL, this is ignored.
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char *Gate: pointer to gateway IP address string. This is NULL
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if no value was provided/no filtering desired.
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ULONG GateVal: value of gateway IP address to filter route
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table with. If Gate is NULL, this is ignored.
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BOOL Persistent: set if persistent routes are to be printed.
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Returns: ULONG
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Can also be found in nt\private\net\sockets\tcpcmd\route\route.c
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--*/
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{
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int printcount = 0;
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int dwResult, j, k, err, alen;
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DWORD i;
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PMIB_IPFORWARDTABLE prifRouteTable = NULL;
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PMIB_IFTABLE pIfTable = NULL;
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// ====================================================================
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// Get Route Table.
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pResults->Route.dwNumRoutes = 0;
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InitializeListHead(&pResults->Route.lmsgRoute);
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dwResult = InternalGetIpForwardTable(&prifRouteTable,
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GetProcessHeap(), HEAP_NO_SERIALIZE );
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if(dwResult || !prifRouteTable){
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DEBUG_PRINT(("GetIpForwardTable/2: err=%d, dwResult=%d\n",
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GetLastError(), dwResult ));
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return S_FALSE;
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}
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if( ! prifRouteTable->dwNumEntries )
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{
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return S_OK;
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}
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for(i = 0; i < prifRouteTable->dwNumEntries; i++)
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{
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PMIB_IPFORWARDROW pfr = &prifRouteTable->table[i];
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// Only print this entry if the destination matches the parameter
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if( ( Dest != NULL )
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&& ( DestVal != WILD_CARD )
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&& ( pfr->dwForwardDest != DestVal )
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&& ( DestPat == NULL )
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)
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continue;
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// Only print this entry if the Gateway matches the parameter
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if( ( Gate != NULL )
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&& ( GateVal != WILD_CARD )
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&& ( pfr->dwForwardNextHop != GateVal )
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)
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continue;
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if( DestPat )
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{
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char DestStr[32];
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NetpIpAddressToStr( pfr->dwForwardDest, DestStr );
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if( ! match( DestPat, DestStr ) )
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{
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TRACE_PRINT(("PrintRoute: skipping %s !~ %s\n",
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DestPat, DestStr ));
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continue;
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}
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}
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// Either we have a match on Dest/Gateway or they are
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// wildcard/don't care.
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// Display the header first time.
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// We are going to display only static routes
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if ( printcount++ < 1 )
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//IDS_ROUTE_14203 "Network Destination Netmask Gateway Interface Metric\n"
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AddMessageToListId( &pResults->Route.lmsgRoute, Nd_ReallyVerbose, IDS_ROUTE_14203);
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//IDS_ROUTE_14204 "%s\n"
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AddMessageToList( &pResults->Route.lmsgRoute, Nd_ReallyVerbose,
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IDS_ROUTE_14204,
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PrintRouteEntry( pfr->dwForwardDest,
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pfr->dwForwardMask,
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pfr->dwForwardNextHop,
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pfr->dwForwardIfIndex,
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pfr->dwForwardMetric1)
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);
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}
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pResults->Route.dwNumRoutes = printcount;
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HeapFree( GetProcessHeap(), HEAP_NO_SERIALIZE, pIfTable );
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HeapFree( GetProcessHeap(), HEAP_NO_SERIALIZE, prifRouteTable);
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return ( NO_ERROR );
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}
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LPCTSTR
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PrintRouteEntry(
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ULONG Dest,
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ULONG Mask,
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ULONG Gate,
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ULONG Interface,
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ULONG Metric1
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)
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/*++
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Description:
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Formats and displays a single route entry.
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Arguments:
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Dest: The destination address.
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Mask: The destination netmask.
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Gate: The first hop gateway address.
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Interface: The interface address for the gateway net.
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Metric1: The primary route metric.
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Author:
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07/01/98 Rajkumar
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--*/
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{
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static TCHAR s_szBuffer[512];
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TCHAR szFormat[128];
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char DestStr[32];
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char GateStr[32];
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char NetmaskStr[32];
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char MetricStr[32];
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char IfStr[32];
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NetpIpAddressToStr( Dest, DestStr);
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NetpIpAddressToStr( Gate, GateStr);
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NetpIpAddressToStr( Mask, NetmaskStr);
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MapInterface(IfStr,Interface);
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if( Metric1 > MAX_METRIC ) Metric1 = MAX_METRIC;
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sprintf( MetricStr, "%u", Metric1 );
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//IDS_ROUTE_14205 "%16s %16s %16s %16s %6s"
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LoadString(NULL, IDS_ROUTE_14205, szFormat, DimensionOf(szFormat));
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assert(szFormat[0]);
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_stprintf(s_szBuffer, szFormat, DestStr,
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NetmaskStr, GateStr, IfStr, MetricStr);
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return s_szBuffer;
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}
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BOOLEAN
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ExtractRoute(
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char *RouteString,
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ULONG *DestVal,
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ULONG *MaskVal,
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ULONG *GateVal,
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ULONG *MetricVal
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)
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/*++
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Description:
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Extracts the dest, mask, and gateway from a persistent
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route string, as stored in the registry.
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Arguments:
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RouteString : The string to parse.
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DestVal : The place to put the extracted destination
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MaskVal : The place to put the extracted mask
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GateVal : The place to put the extracted gateway
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MetricVal : The place to put the extracted metric
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Author:
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07/01/98 Rajkumar . Created.
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--*/
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{
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char *addressPtr = RouteString;
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char *indexPtr = RouteString;
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ULONG address;
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ULONG i;
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char saveChar;
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BOOLEAN EndOfString=FALSE;
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//
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// The route is laid out in the string as "Dest,Mask,Gateway,Mertic".
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//
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//
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// set MetricVal to 1 to take care of persistent routes without the
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// metric value
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//
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*MetricVal = 1;
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for (i=0; i<4 && !EndOfString; i++) {
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//
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// Walk the string to the end of the current item.
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//
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while (1) {
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if (*indexPtr == '\0') {
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if ((i >= 2) && (indexPtr != addressPtr)) {
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//
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// End of string
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//
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EndOfString = TRUE;
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break;
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}
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return(FALSE);
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}
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if (*indexPtr == ROUTE_SEPARATOR) {
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break;
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}
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indexPtr++;
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}
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//
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// NULL terminate the current substring and extract the address value.
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//
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saveChar = *indexPtr;
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*indexPtr = '\0';
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if (i==3) {
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address = atoi (addressPtr);
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} else if (!ImprovedInetAddr(addressPtr, &address)) {
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*indexPtr = saveChar;
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return(FALSE);
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}
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*indexPtr = saveChar;
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switch(i) {
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case 0: *DestVal = address; break;
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case 1: *MaskVal = address; break;
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case 2: *GateVal = address; break;
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case 3: *MetricVal = address; break;
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default: return FALSE;
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}
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addressPtr = ++indexPtr;
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}
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return(TRUE);
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}
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//
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// Rajkumar - This function is based on route implementation
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//
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HRESULT
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PrintPersistentRoutes(
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NETDIAG_RESULT *pResults,
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char* Dest,
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ULONG DestVal,
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char* Gate,
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ULONG GateVal
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)
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/*++
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Routine Description:
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Displays the list of persistent routes
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Arguments: Dest : The destination string. (display filter)
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DestVal : The numeric destination value. (display filter)
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Gate : The gateway string. (display filter)
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GateVal : The numeric gateway value. (display filter)
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Returns: None
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--*/
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{
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//
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// Delete this route from the PersistentRoutes list in the
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// registry if it is there.
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//
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DWORD status;
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HKEY key;
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char valueString[ROUTE_DATA_STRING_SIZE];
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DWORD valueStringSize;
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DWORD valueType;
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DWORD index = 0;
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ULONG dest, mask, gate, metric;
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BOOLEAN headerPrinted = FALSE;
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BOOLEAN match;
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pResults->Route.dwNumPersistentRoutes = 0;
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InitializeListHead(&pResults->Route.lmsgPersistentRoute);
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status = RegOpenKeyA(HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\PersistentRoutes", &key);
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if (status == ERROR_SUCCESS)
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{
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while(1) {
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valueStringSize = ROUTE_DATA_STRING_SIZE - 1;
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status = RegEnumValueA(
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key,
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index++,
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valueString,
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&valueStringSize,
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NULL,
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&valueType,
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NULL,
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0
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);
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if (status != ERROR_SUCCESS)
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{
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if ((status == ERROR_BUFFER_OVERFLOW) ||
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(status == ERROR_MORE_DATA) )
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{
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continue;
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}
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else
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break;
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}
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if (valueType != REG_SZ)
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continue;
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valueString[valueStringSize++] = '\0';
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if ( !ExtractRoute(
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valueString,
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&dest,
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&mask,
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&gate,
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&metric
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)
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)
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{
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continue;
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}
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//IDS_ROUTE_14207 "%s\n"
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AddMessageToList( &pResults->Route.lmsgPersistentRoute, Nd_ReallyVerbose,
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IDS_ROUTE_14207,
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PrintRouteEntry(dest, mask, gate, 0, metric));
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pResults->Route.dwNumPersistentRoutes++;
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} // end while
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CloseHandle(key);
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}
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else
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{
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DebugMessage2("RegOpenKeyA %s failed\n","Tcpip\\Parameters\\Persistent");
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return S_FALSE;
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}
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return S_OK;
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}
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void MapInterface(char *IPAddr, ULONG IfIndex)
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{
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DWORD IpAddrTableSize=0;
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PMIB_IPADDRTABLE pIpAddrTable=NULL;
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char *TempBuf;
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BOOL bOrder=TRUE;
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HRESULT hr;
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DWORD i;
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sprintf(IPAddr,"%x",IfIndex);
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hr=GetIpAddrTable(NULL,
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&IpAddrTableSize,
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bOrder);
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if (hr != ERROR_SUCCESS && hr != ERROR_INSUFFICIENT_BUFFER) {
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DebugMessage("GetIpAddrTable() failed.\n");
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return;
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}
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pIpAddrTable=(PMIB_IPADDRTABLE) Malloc(IpAddrTableSize);
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if (pIpAddrTable == NULL) {
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DebugMessage("Out of Memory in RouteTest::MapInterface().\n");
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return;
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}
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ZeroMemory( pIpAddrTable, IpAddrTableSize );
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hr=GetIpAddrTable(pIpAddrTable,
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&IpAddrTableSize,
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bOrder);
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if (hr != ERROR_SUCCESS)
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{
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DebugMessage("GetIpAddrTable() failed.\n");
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Free(pIpAddrTable);
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return;
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}
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|
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for (i=0; i < pIpAddrTable->dwNumEntries; i++)
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{
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if ((pIpAddrTable->table[i].dwIndex == IfIndex) && (pIpAddrTable->table[i].dwAddr != 0) && (pIpAddrTable->table[i].wType & MIB_IPADDR_PRIMARY))
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{
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TempBuf=inet_ntoa(*(struct in_addr*)&pIpAddrTable->table[i].dwAddr);
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if (!TempBuf) {
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break;;
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}
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strcpy(IPAddr, TempBuf);
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break;
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}
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}
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Free(pIpAddrTable);
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return;
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}
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|
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|
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BOOLEAN
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ImprovedInetAddr(
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char *AddressString,
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ULONG *AddressValue
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)
|
|
/*++
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|
|
Description:
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Converts an IP address string to its numeric equivalent.
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|
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Arguments:
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char *AddressString: The string to convert
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ULONG AddressValue : The place to store the converted value.
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Returns: TRUE
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Author:
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07/01/98 Rajkumar . Created.
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--*/
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|
{
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ULONG address = inet_addr(AddressString);
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|
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if (address == 0xFFFFFFFF) {
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if (strcmp(AddressString, "255.255.255.255") == 0) {
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*AddressValue = address;
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return(TRUE);
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}
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return(FALSE);
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}
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*AddressValue = address;
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return TRUE;
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}
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void RouteGlobalPrint(NETDIAG_PARAMS *pParams, NETDIAG_RESULT *pResults)
|
|
{
|
|
if (!pParams->fReallyVerbose)
|
|
return;
|
|
|
|
if (pParams->fReallyVerbose || !FHrOK(pResults->Route.hrTestResult))
|
|
{
|
|
PrintNewLine(pParams, 2);
|
|
PrintTestTitleResult(pParams,
|
|
IDS_ROUTE_LONG,
|
|
IDS_ROUTE_SHORT,
|
|
TRUE,
|
|
pResults->Route.hrTestResult,
|
|
0);
|
|
}
|
|
|
|
if( pParams->fReallyVerbose)
|
|
{
|
|
if( 0 == pResults->Route.dwNumRoutes)
|
|
{
|
|
//IDS_ROUTE_14201 "No Entries in the IP Forward Table\n"
|
|
PrintMessage( pParams, IDS_ROUTE_14201);
|
|
}
|
|
else
|
|
{
|
|
//IDS_ROUTE_14202 "Active Routes :\n"
|
|
PrintMessage( pParams, IDS_ROUTE_14202);
|
|
PrintMessageList(pParams, &pResults->Route.lmsgRoute);
|
|
}
|
|
|
|
if( 0 == pResults->Route.dwNumPersistentRoutes)
|
|
{
|
|
//IDS_ROUTE_14208 "No persistent route entries.\n"
|
|
PrintMessage( pParams, IDS_ROUTE_14208);
|
|
|
|
}
|
|
else
|
|
{
|
|
//IDS_ROUTE_14206 "\nPersistent Route Entries: \n"
|
|
PrintMessage( pParams, IDS_ROUTE_14206);
|
|
PrintMessageList(pParams, &pResults->Route.lmsgPersistentRoute);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
void RoutePerInterfacePrint(NETDIAG_PARAMS *pParams, NETDIAG_RESULT *pResults, INTERFACE_RESULT *pInterfaceResults)
|
|
{
|
|
if (!pParams->fReallyVerbose)
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
void RouteCleanup(IN NETDIAG_PARAMS *pParams,
|
|
IN OUT NETDIAG_RESULT *pResults)
|
|
{
|
|
MessageListCleanUp(&pResults->Route.lmsgRoute);
|
|
MessageListCleanUp(&pResults->Route.lmsgPersistentRoute);
|
|
}
|