windows-nt/Source/XPSP1/NT/net/tcpip/tpipv6/tcpip6/tcp/tcpinit.c
2020-09-26 16:20:57 +08:00

135 lines
2.9 KiB
C

// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil -*- (for GNU Emacs)
//
// Copyright (c) 1985-2000 Microsoft Corporation
//
// This file is part of the Microsoft Research IPv6 Network Protocol Stack.
// You should have received a copy of the Microsoft End-User License Agreement
// for this software along with this release; see the file "license.txt".
// If not, please see http://www.research.microsoft.com/msripv6/license.htm,
// or write to Microsoft Research, One Microsoft Way, Redmond, WA 98052-6399.
//
// Abstract:
//
// This file contains init code for TCP.
//
#include "oscfg.h"
#include "ndis.h"
#include "ip6imp.h"
#include "ip6def.h"
#include "tdi.h"
#include <tdikrnl.h>
#include "tdint.h"
#include "tdistat.h"
#include "queue.h"
#include "transprt.h"
#include "addr.h"
#include "info.h"
#include "tcp.h"
#include "tcpsend.h"
#include "tcb.h"
#include "tcpconn.h"
#include "tcpdeliv.h"
#include "tdiinfo.h"
#include "tcpcfg.h"
#pragma BEGIN_INIT
extern uchar TCPGetConfigInfo(void);
extern int InitTCPConn(void);
extern void UnloadTCPConn(void);
extern int InitTCPRcv(void);
extern void UnloadTCPRcv(void);
extern int InitISNGenerator(void);
extern void UnloadISNGenerator(void);
//
// Definitions of TCP specific global variables.
//
uint AllowUserRawAccess;
uint DeadGWDetect;
uint PMTUDiscovery;
uint PMTUBHDetect;
uint KeepAliveTime;
uint KAInterval;
uint DefaultRcvWin;
uint MaxConnections;
uint MaxConnBlocks;
uint TcbTableSize;
uint MaxConnectRexmitCount;
uint MaxDataRexmitCount;
uint BSDUrgent;
uint FinWait2TO;
uint NTWMaxConnectCount;
uint NTWMaxConnectTime;
uint SynAttackProtect = 0;
//* TCPInit - Initialize the Transport Control Protocol.
//
// The main TCP initialize routine. We get whatever config
// info we need, initialize some data structures, etc.
//
int // Returns: True is we succeeded, False if we fail to initialize.
TCPInit(void)
{
if (!TCPGetConfigInfo())
return FALSE;
KeepAliveTime = MS_TO_TICKS(KeepAliveTime);
KAInterval = MS_TO_TICKS(KAInterval);
MaxConnections = MIN(MaxConnections, INVALID_CONN_INDEX - 1);
if (!InitISNGenerator())
return FALSE;
if (!InitTCPConn())
return FALSE;
if (!InitTCB())
return FALSE;
if (!InitTCPRcv())
return FALSE;
if (!InitTCPSend())
return FALSE;
//
// Initialize statistics.
//
RtlZeroMemory(&TStats, sizeof(TCPStats));
TStats.ts_rtoalgorithm = TCP_RTO_VANJ;
TStats.ts_rtomin = MIN_RETRAN_TICKS * MS_PER_TICK;
TStats.ts_rtomax = MAX_REXMIT_TO * MS_PER_TICK;
TStats.ts_maxconn = (ulong) TCP_MAXCONN_DYNAMIC;
return TRUE;
}
#pragma END_INIT
//* TCPUnload
//
// Called to cleanup TCP in preparation for unloading the stack.
//
void
TCPUnload(void)
{
//
// After UnloadTCPSend, we will stop receiving packets
// from the IPv6 layer.
//
UnloadTCPSend();
UnloadTCPRcv();
UnloadTCB();
UnloadTCPConn();
UnloadISNGenerator();
}