387 lines
8.9 KiB
C
387 lines
8.9 KiB
C
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/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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net\routing\iphlpapi.c
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Abstract:
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This files contains the DLL entry point and some miscellanous functions for
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IPHLPAPI.DLL
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Revision History:
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Amritansh Raghav
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--*/
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#include "inc.h"
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#pragma hdrstop
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#include <initguid.h>
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#include <ifguid.h>
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HANDLE g_hPrivateHeap;
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HANDLE g_hTCPDriverGetHandle;
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HANDLE g_hTCP6DriverGetHandle;
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HANDLE g_hTCPDriverSetHandle;
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HANDLE g_hTCP6DriverSetHandle;
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HANDLE g_hIPDriverHandle;
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HANDLE g_hIP6DriverHandle;
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HANDLE g_hIPGetDriverHandle;
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HANDLE g_hIP6GetDriverHandle;
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DWORD g_dwTraceHandle;
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LIST_ENTRY g_pAdapterMappingTable[MAP_HASH_SIZE];
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DWORD g_dwLastIfUpdateTime;
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PDWORD g_pdwArpEntTable;
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DWORD g_dwNumArpEntEntries;
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DWORD g_dwLastArpUpdateTime;
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DWORD g_dwNumIf;
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BOOL g_bIpConfigured;
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BOOL g_bIp6Configured;
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BOOL g_bProcessAttached;
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HANDLE g_hModule;
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MIB_SERVER_HANDLE g_hMIBServer;
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CRITICAL_SECTION g_ifLock;
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CRITICAL_SECTION g_ipNetLock;
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CRITICAL_SECTION g_tcpipLock;
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CRITICAL_SECTION g_stateLock;
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WSADATA WsaData;
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#ifndef CHICAGO
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VOID
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InitFilterApis();
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VOID
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UnInitFilterApis();
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#endif
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BOOL WINAPI
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IcmpEntryPoint(
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HANDLE hDll,
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DWORD dwReason,
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LPVOID lpReserved
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);
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BOOL WINAPI
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DllMain(
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HINSTANCE hInstDll,
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DWORD fdwReason,
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LPVOID pReserved
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)
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{
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DWORD dwResult;
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int retcode;
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UNREFERENCED_PARAMETER( pReserved );
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Trace1(ERR,"IpHlpDllEntry %d", fdwReason );
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switch (fdwReason)
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{
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case DLL_PROCESS_ATTACH:
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{
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Trace0(ERR,"IpHlpDllEntry DLL_PROCESS_ATTACH");
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g_bProcessAttached = FALSE;
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// Check platform.
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if (GetVersion() & 0x80000000)
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{
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// CHICAGO
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#ifndef CHICAGO
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DEBUG_PRINT(("IpHlpDllEntry: This an NT product.\n"));
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return FALSE;
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#endif
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}
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else
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{
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// NT
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#ifdef CHICAGO
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DEBUG_PRINT(("IpHlpDllEntry: This is an CHICAGO product.\n"));
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return FALSE;
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#endif
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}
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//
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// we use WsControl amongst other things from wsock32
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//
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#ifdef CHICAGO
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retcode = WSAStartup(0x0101, &WsaData);
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if (retcode != 0)
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{
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DEBUG_PRINT(("WSAStartup failed %d\n", GetLastError() ));
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return FALSE;
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}
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#endif
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DisableThreadLibraryCalls(hInstDll);
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if (!IcmpEntryPoint(hInstDll, fdwReason, pReserved))
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{
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return FALSE;
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}
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g_hPrivateHeap = HeapCreate(0, 4*1024, 0);
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if (g_hPrivateHeap is NULL)
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{
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IcmpEntryPoint(hInstDll, DLL_PROCESS_DETACH, pReserved);
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return FALSE;
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}
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InitializeCriticalSection(&g_ifLock);
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InitializeCriticalSection(&g_ipNetLock);
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InitializeCriticalSection(&g_tcpipLock);
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InitializeCriticalSection(&g_stateLock);
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g_dwLastIfUpdateTime = 0;
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g_dwLastArpUpdateTime = 0;
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g_pdwArpEntTable = NULL;
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g_dwNumArpEntEntries = 0;
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g_dwNumIf = 0;
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InitAdapterMappingTable();
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g_hMIBServer = NULL;
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#if API_TRACE
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g_dwTraceHandle = TraceRegister("IPHLPAPI");
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if (g_dwTraceHandle is INVALID_TRACEID)
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{
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UnInitAdapterMappingTable();
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DeleteCriticalSection(&g_ifLock);
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DeleteCriticalSection(&g_ipNetLock);
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DeleteCriticalSection(&g_tcpipLock);
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DeleteCriticalSection(&g_stateLock);
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HeapDestroy(g_hPrivateHeap);
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IcmpEntryPoint(hInstDll, DLL_PROCESS_DETACH, pReserved);
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return FALSE;
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}
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#endif // API_TRACE
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if (OpenTCPDriver(AF_INET) is NO_ERROR)
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{
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g_bIpConfigured = TRUE;
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if (UpdateAdapterToIFInstanceMapping() isnot NO_ERROR ||
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UpdateAdapterToATInstanceMapping() isnot NO_ERROR)
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{
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g_bIpConfigured = FALSE;
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CloseTCPDriver();
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#if API_TRACE
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TraceDeregister(g_dwTraceHandle);
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#endif // API_TRACE
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UnInitAdapterMappingTable();
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DeleteCriticalSection(&g_ifLock);
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DeleteCriticalSection(&g_ipNetLock);
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DeleteCriticalSection(&g_tcpipLock);
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DeleteCriticalSection(&g_stateLock);
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HeapDestroy(g_hPrivateHeap);
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IcmpEntryPoint(hInstDll, DLL_PROCESS_DETACH, pReserved);
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return FALSE;
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}
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}
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else
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{
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//
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// we are not running on an IP machine
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//
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g_bIpConfigured = FALSE;
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}
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#ifndef CHICAGO
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InitFilterApis();
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//
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// Attach ipcfgdll library
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//
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if (g_bIpConfigured)
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{
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if (IpcfgdllInit(hInstDll, fdwReason, pReserved) == FALSE)
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{
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UnInitFilterApis();
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CloseTCPDriver();
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#if API_TRACE
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TraceDeregister(g_dwTraceHandle);
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#endif // API_TRACE
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UnInitAdapterMappingTable();
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DeleteCriticalSection(&g_ifLock);
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DeleteCriticalSection(&g_ipNetLock);
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DeleteCriticalSection(&g_tcpipLock);
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DeleteCriticalSection(&g_stateLock);
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HeapDestroy(g_hPrivateHeap);
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IcmpEntryPoint(hInstDll, DLL_PROCESS_DETACH, pReserved);
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return FALSE;
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}
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}
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#endif
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g_hModule = hInstDll;
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InitNameMappers();
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g_bProcessAttached = TRUE;
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break;
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}
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case DLL_PROCESS_DETACH:
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{
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Trace0(ERR,"IpHlpDllEntry DLL_PROCESS_DETACH");
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if (!g_bProcessAttached)
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{
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break;
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}
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DeinitNameMappers();
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if (g_hPrivateHeap isnot NULL)
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{
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HeapDestroy(g_hPrivateHeap);
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}
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DeleteCriticalSection(&g_ifLock);
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DeleteCriticalSection(&g_ipNetLock);
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DeleteCriticalSection(&g_tcpipLock);
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DeleteCriticalSection(&g_stateLock);
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#ifndef CHICAGO
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if (g_hMIBServer isnot NULL)
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{
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MprAdminMIBServerDisconnect(g_hMIBServer);
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}
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#endif
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if (g_bIpConfigured)
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{
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CloseTCPDriver();
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}
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if (g_bIp6Configured)
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{
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CloseTCP6Driver();
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}
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#ifndef CHICAGO
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UnInitFilterApis();
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//
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// Detach ipcfgdll library
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//
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IpcfgdllInit(hInstDll, fdwReason, pReserved);
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#endif
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#if API_TRACE
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TraceDeregister(g_dwTraceHandle);
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#endif // API_TRACE
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g_bProcessAttached = FALSE;
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if (!IcmpEntryPoint(hInstDll, fdwReason, pReserved))
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{
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return FALSE;
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}
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break;
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}
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default:
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{
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break;
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}
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}
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return TRUE;
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}
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#ifndef CHICAGO
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BOOL
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IsRouterRunning(VOID)
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{
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DWORD dwResult;
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if(!MprAdminIsServiceRunning(NULL))
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{
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g_hMIBServer = NULL;
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return FALSE;
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}
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if(g_hMIBServer is NULL)
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{
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dwResult = MprAdminMIBServerConnect(NULL,
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&g_hMIBServer);
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if(dwResult isnot NO_ERROR)
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{
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Trace1(ERR,
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"IsRouterRunning: Error %d connecting to MIB Server\n",
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dwResult);
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g_hMIBServer = NULL;
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return FALSE;
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}
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}
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return TRUE;
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}
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BOOL
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IsRouterSettingRoutes(VOID)
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{
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DWORD dwResult, dwOutEntrySize;
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BOOL bRet;
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MIB_OPAQUE_QUERY Query;
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PMIB_OPAQUE_INFO pInfo;
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PMIB_ROUTESTATE pState;
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//
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// This has to be called after calling IsRouterRunning, so g_hMibServer
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// is already set
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//
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if(g_hMIBServer is NULL)
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{
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return FALSE;
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}
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Query.dwVarId = ROUTE_STATE;
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dwResult = MprAdminMIBEntryGet(g_hMIBServer,
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PID_IP,
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IPRTRMGR_PID,
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(PVOID)&Query,
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sizeof(MIB_OPAQUE_QUERY),
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(PVOID)&pInfo,
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&dwOutEntrySize);
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if(dwResult isnot NO_ERROR)
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{
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return FALSE;
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}
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CAST_MIB_INFO(pInfo, PMIB_ROUTESTATE, pState);
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bRet = pState->bRoutesSetToStack;
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MprAdminMIBBufferFree((PVOID)pInfo);;
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return bRet;
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}
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#endif
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