412 lines
10 KiB
C
412 lines
10 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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stackex.c
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Abstract:
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Ex versions of GetTcpTableFromStack and GetUdpTableFromStack.
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These are used to get the owning process id associated with connections
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from the stack.
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Author:
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Shaun Cox (shaunco) 19-Feb-2000
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Revision History:
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--*/
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#include "inc.h"
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#pragma hdrstop
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int
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TCPQueryInformationEx(
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DWORD Family,
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void *InBuf,
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ulong *InBufLen,
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void *OutBuf,
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ulong *OutBufLen
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);
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DWORD
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GetTcpExTableFromStack(
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OUT TCP_EX_TABLE *pTcpTable,
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IN DWORD dwSize,
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IN BOOL bOrder,
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IN DWORD dwFamily
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)
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{
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DWORD dwInBufLen, dwOutBufLen, dwResult, dwEntryLen;
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TDIObjectID *ID;
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BYTE *Context;
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int (_cdecl *pfnCompare)(CONST VOID *pvElem1, CONST VOID *pvElem2);
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TCP_REQUEST_QUERY_INFORMATION_EX trqiInBuf;
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CheckTcpipState();
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if (dwFamily == AF_INET)
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{
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if (!g_bIpConfigured)
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{
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return ERROR_NOT_SUPPORTED;
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}
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dwEntryLen = sizeof(TCPConnTableEntryEx);
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pfnCompare = CompareTcpRow;
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dwOutBufLen = dwSize - FIELD_OFFSET(TCP_EX_TABLE, table[0]);
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}
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else if (dwFamily == AF_INET6)
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{
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if (!g_bIp6Configured)
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{
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return ERROR_NOT_SUPPORTED;
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}
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dwEntryLen = sizeof(TCP6ConnTableEntry);
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pfnCompare = CompareTcp6Row;
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dwOutBufLen = dwSize - FIELD_OFFSET(TCP6_EX_TABLE, table[0]);
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}
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else
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{
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return ERROR_INVALID_PARAMETER;
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}
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ID = &(trqiInBuf.ID);
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ID->toi_entity.tei_entity = CO_TL_ENTITY;
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ID->toi_entity.tei_instance = 0;
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ID->toi_class = INFO_CLASS_PROTOCOL;
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ID->toi_type = INFO_TYPE_PROVIDER;
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ID->toi_id = TCP_EX_TABLE_ID;
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Context = (BYTE *) &(trqiInBuf.Context[0]);
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ZeroMemory( Context, CONTEXT_SIZE );
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dwInBufLen = sizeof(TCP_REQUEST_QUERY_INFORMATION_EX);
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dwResult = TCPQueryInformationEx(dwFamily,
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&trqiInBuf,
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&dwInBufLen,
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(PVOID)(pTcpTable->table),
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&dwOutBufLen);
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if(dwResult isnot NO_ERROR)
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{
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Trace1(ERR,
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"GetTcpExTableFromStack: Couldnt query stack. Error %x",
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dwResult);
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return dwResult;
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}
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pTcpTable->dwNumEntries = (dwOutBufLen / dwEntryLen);
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if((pTcpTable->dwNumEntries > 0) and bOrder)
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{
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qsort(pTcpTable->table,
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pTcpTable->dwNumEntries,
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dwEntryLen,
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pfnCompare);
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}
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return NO_ERROR;
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}
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DWORD
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AllocateAndGetTcpExTableFromStack(
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OUT TCP_EX_TABLE **ppTcpTable,
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IN BOOL bOrder,
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IN HANDLE hHeap,
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IN DWORD dwFlags,
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IN DWORD dwFamily
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)
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{
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DWORD dwResult, dwCount, dwOutBufLen;
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MIB_TCPSTATS TcpInfo;
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DWORD dwEntryLen;
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*ppTcpTable = NULL;
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//
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// Find out the number of entries the stack has. It returns this as part of
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// the Tcp Stats. Also validate the dwFamily parameter.
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//
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dwResult = GetTcpStatsFromStackEx(&TcpInfo, dwFamily);
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if(dwResult isnot NO_ERROR)
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{
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Trace1(ERR,
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"AllocateAndGetTcpExTableFromStack: Couldnt get Tcp Stats From stack. Error %d",
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dwResult);
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return dwResult;
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}
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dwCount = TcpInfo.dwNumConns + OVERFLOW_COUNT;
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if (dwFamily == AF_INET)
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{
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dwEntryLen = sizeof(TCPConnTableEntryEx);
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dwOutBufLen = FIELD_OFFSET(TCP_EX_TABLE, table[0])
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+ (dwCount * dwEntryLen)
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+ ALIGN_SIZE;
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}
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else
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{
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dwEntryLen = sizeof(TCP6ConnTableEntry);
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dwOutBufLen = FIELD_OFFSET(TCP6_EX_TABLE, table[0])
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+ (dwCount * dwEntryLen)
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+ ALIGN_SIZE;
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}
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*ppTcpTable = HeapAlloc(hHeap, dwFlags, dwOutBufLen);
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if(*ppTcpTable is NULL)
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{
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dwResult = ERROR_NOT_ENOUGH_MEMORY;
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Trace1(ERR,
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"AllocateAndGetTcpExTableFromStack: Couldnt allocate memory. Error %d",
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dwResult);
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return dwResult;
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}
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if(TcpInfo.dwNumConns is 0)
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{
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(*ppTcpTable)->dwNumEntries = 0;
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return NO_ERROR;
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}
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dwResult = GetTcpExTableFromStack(*ppTcpTable, dwOutBufLen, bOrder,
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dwFamily);
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if(dwResult isnot NO_ERROR)
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{
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Trace1(ERR,
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"AllocateAndGetTcpExTableFromStack: Error %d GetTcpExTableFromStack",
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dwResult);
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}
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return dwResult;
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}
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DWORD
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GetUdpExTableFromStack(
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OUT UDP_EX_TABLE *pUdpTable,
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IN DWORD dwSize,
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IN BOOL bOrder,
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IN DWORD dwFamily
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)
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{
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DWORD dwInBufLen, dwOutBufLen, dwResult;
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BYTE *Context;
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DWORD dwEntryLen;
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int (__cdecl *pfnCompare)(CONST VOID *pvElem1, CONST VOID *pvElem2);
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TCP_REQUEST_QUERY_INFORMATION_EX trqiInBuf;
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TDIObjectID *ID;
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CheckTcpipState();
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if (dwFamily == AF_INET)
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{
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if (!g_bIpConfigured)
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{
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return ERROR_NOT_SUPPORTED;
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}
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dwEntryLen = sizeof(UDPEntryEx);
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pfnCompare = CompareUdpRow;
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}
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else if (dwFamily == AF_INET6)
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{
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if (!g_bIp6Configured)
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{
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return ERROR_NOT_SUPPORTED;
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}
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dwEntryLen = sizeof(UDP6ListenerEntry);
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pfnCompare = CompareUdp6Row;
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}
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else
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{
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return ERROR_INVALID_PARAMETER;
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}
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ID = &(trqiInBuf.ID);
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ID->toi_entity.tei_entity = CL_TL_ENTITY;
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ID->toi_entity.tei_instance = 0;
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ID->toi_class = INFO_CLASS_PROTOCOL;
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ID->toi_type = INFO_TYPE_PROVIDER;
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ID->toi_id = UDP_EX_TABLE_ID;
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Context = (BYTE *) &(trqiInBuf.Context[0]);
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ZeroMemory( Context, CONTEXT_SIZE );
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dwInBufLen = sizeof(TCP_REQUEST_QUERY_INFORMATION_EX);
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dwOutBufLen = dwSize - FIELD_OFFSET(UDP6_LISTENER_TABLE, table[0]);
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dwResult = TCPQueryInformationEx(dwFamily,
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&trqiInBuf,
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&dwInBufLen,
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(PVOID)(pUdpTable->table),
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&dwOutBufLen);
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if(dwResult isnot NO_ERROR)
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{
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Trace1(ERR,
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"GetUdpExTableFromStack: Couldnt query TCP information. Error %d",
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dwResult);
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return dwResult;
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}
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pUdpTable->dwNumEntries = (dwOutBufLen / dwEntryLen);
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//
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// Now sort the UDP connection table. Keys are: local address, and local
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// port.
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//
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if((pUdpTable->dwNumEntries > 0) and bOrder)
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{
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qsort(pUdpTable->table,
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pUdpTable->dwNumEntries,
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dwEntryLen,
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pfnCompare);
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}
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TraceLeave("GetUdpExTableFromStack");
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return NO_ERROR;
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}
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DWORD
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AllocateAndGetUdpExTableFromStack(
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OUT UDP_EX_TABLE **ppUdpTable,
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IN BOOL bOrder,
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IN HANDLE hHeap,
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IN DWORD dwFlags,
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IN DWORD dwFamily
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)
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{
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DWORD dwResult, dwCount, dwOutBufLen;
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MIB_UDPSTATS UdpInfo;
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UDP6_LISTENER_TABLE **ppUdp6Table;
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*ppUdpTable = NULL;
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//
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// Find out the number of entries the stack has. It returns this as part of
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// the Tcp Stats. Also validate the dwFamily parameter.
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//
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dwResult = GetUdpStatsFromStackEx(&UdpInfo, dwFamily);
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if(dwResult isnot NO_ERROR)
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{
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Trace1(ERR,
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"AllocateAndGetUdpExTableFromStack: Couldnt get Udp Stats From stack. Error %d",
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dwResult);
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return dwResult;
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}
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dwCount = UdpInfo.dwNumAddrs + OVERFLOW_COUNT;
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if (dwFamily == AF_INET)
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{
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dwOutBufLen = FIELD_OFFSET(UDP_EX_TABLE, table[0])
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+ (dwCount * sizeof(UDPEntryEx))
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+ ALIGN_SIZE;
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}
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else
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{
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dwOutBufLen = FIELD_OFFSET(UDP6_LISTENER_TABLE, table[0])
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+ (dwCount * sizeof(UDP6ListenerEntry))
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+ ALIGN_SIZE;
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}
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*ppUdpTable = HeapAlloc(hHeap, dwFlags, dwOutBufLen);
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if(*ppUdpTable is NULL)
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{
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dwResult = ERROR_NOT_ENOUGH_MEMORY;
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Trace1(ERR,
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"AllocateAndGetUdpExTableFromStack: Couldnt allocate memory. Error %d",
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dwResult);
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return dwResult;
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}
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if(UdpInfo.dwNumAddrs is 0)
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{
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(*ppUdpTable)->dwNumEntries = 0;
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return NO_ERROR;
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}
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dwResult = GetUdpExTableFromStack(*ppUdpTable, dwOutBufLen, bOrder,
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dwFamily);
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if(dwResult isnot NO_ERROR)
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{
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Trace1(ERR,
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"AllocateAndGetUdpExTableFromStack: Error %d GetUdpExTableFromStack",
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dwResult);
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}
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return dwResult;
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}
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DWORD
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GetBestInterfaceFromIpv6Stack(
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IN LPSOCKADDR_IN6 pSockAddr,
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OUT PDWORD pdwBestIfIndex
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)
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{
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DWORD dwOutBufLen, dwInBufLen, dwResult;
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CHAR byBuffer[FIELD_OFFSET(TCP_REQUEST_QUERY_INFORMATION_EX, Context) +
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sizeof(TDI_ADDRESS_IP6)];
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TCP_REQUEST_QUERY_INFORMATION_EX *ptrqiInBuf = (TCP_REQUEST_QUERY_INFORMATION_EX *)byBuffer;
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IP6RouteEntry Ire;
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TDIObjectID *ID;
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BYTE *Context;
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ID = &(ptrqiInBuf->ID);
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ID->toi_entity.tei_entity = CL_NL_ENTITY;
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ID->toi_entity.tei_instance = 0;
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ID->toi_class = INFO_CLASS_PROTOCOL;
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ID->toi_type = INFO_TYPE_PROVIDER;
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ID->toi_id = IP6_GET_BEST_ROUTE_ID;
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RtlCopyMemory((PVOID)ptrqiInBuf->Context, &pSockAddr->sin6_port,
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TDI_ADDRESS_LENGTH_IP6);
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dwInBufLen = sizeof(byBuffer);
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dwOutBufLen = sizeof(Ire);
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dwResult = TCPQueryInformationEx(AF_INET6,
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ptrqiInBuf,
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&dwInBufLen,
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(PVOID)&Ire,
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&dwOutBufLen);
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if (dwResult isnot NO_ERROR)
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{
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Trace1(ERR,"Couldn't query IPv6 stack. Error %d", dwResult);
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TraceLeave("GetBestInterfaceEx");
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return dwResult;
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}
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|
*pdwBestIfIndex = Ire.ire_IfIndex;
|
||
|
|
|
||
|
|
return dwResult;
|
||
|
|
}
|