nat_constants.h

vxworks下ppp的实现源码

/* nat_constants.h */

/* Copyright 2000-2003 Wind River Systems, Inc. */

/* @format.tab-size 4, @format.use-tabs true, @format.new-line lf */
/*
modification history
--------------------
01b,25apr03,svk  Implement version number
01a,23apr03,zhu  updated copyright
Date	Init	Comment
091201	tk		Change MAXIMUM_NUMBER_OF_STATIC_ENTRIES from 10 to 30.  Add new constant
				MAXIMUM_NUMBER_OF_IP_STATIC_ENTRIES.
051501	tk		Fix SPR67123: Global FTP client can't connect to local server when client
				issues PASV command.  Change FTP_MAXIMUM_PORT_STRING_LENGTH from 35 to 60 to
				accommodate for entering passive mode string; otherwise, it can cause system
				to crash.
042101	tk		Add NAT_ICMP_REDIRECT in NAT_PACKET_TYPES
*/

#ifndef __INCnat_constantsh
#define __INCnat_constantsh

enum NAT_PACKET_TYPES
{
	NAT_IP,
	NAT_TCP,
	NAT_UDP,
	NAT_FTP,
	NAT_HTTP,
	NAT_ICMP_TRANSACTION,
	NAT_ICMP_DATAGRAM,
	NAT_ICMP_REDIRECT,
	NAT_RIP,
	NAT_OSPF,
	NAT_CUSEEME,
	NAT_UNKNOWN_PROTOCOL
};

enum NAT_PACKET_DIRECTION
{
	GLOBAL_RX_PACKET,
/*	GLOBAL_TX_PACKET, */
	LOCAL_RX_PACKET
/*	LOCAL_TX_PACKET */
};

#define SIZEOF_CLASS_C_ADDRESS_RANGE 256

enum NAT_PRINTF_GROUPS
{
	NAT_PRINTF_INIT_GROUP,
	NAT_PRINTF_DATA_GROUP,
	NAT_PRINTF_TRACE_GROUP,
	NAT_PRINTF_ERROR_GROUP
};

#define NAT_VERSION	"1.2"

#define	NAT_PRINTF_INIT		NAT_PRINTF_INIT_GROUP,	__FILE__, __LINE__
#define	NAT_PRINTF_DATA		NAT_PRINTF_DATA_GROUP,	__FILE__, __LINE__
#define	NAT_PRINTF_TRACE	NAT_PRINTF_TRACE_GROUP,	__FILE__, __LINE__
#define	NAT_PRINTF_ERROR	NAT_PRINTF_ERROR_GROUP,	__FILE__, __LINE__

#ifndef NUMBER_OF_IP_PORTS
#define NUMBER_OF_IP_PORTS 2
#endif

enum NAT_PORT_TYPE
{
	NAT_GLOBAL_PORT,
	NAT_LOCAL_PORT
};

enum NAT_TCP_PORT_STATE
{
	NAT_SYNCH_STATE,
	NAT_FIN_STATE,
	NAT_ESTABLISHED_STATE,
	NAT_INITIAL_STATE,
	NAT_DISCONNECTED_STATE,
	NAT_ILLEGAL_STATE
};

enum NAT_TCP_STATE_INPUT
{
	NAT_SYNCH,
	NAT_ACK,
	NAT_FIN,
	NAT_ESTABLISHED,
	NAT_RESET,
	NAT_FORCED_RESET
};

enum NAT_TCP_DELTA_SIGN
{
	DELTA_POSITIVE = 1,
	DELTA_NEGATIVE = -1
};

enum NAT_FILTER
{
	NAT_TRANSLATE,
	NAT_DONT_TRANSLATE,
	NAT_FILTER
};

#define NUMBER_OF_NAT_TCP_PORT_STATES					6
#define NUMBER_OF_NAT_TCP_STATE_INPUTS					6


																	/* Default timer values (in seconds) */
#define NAT_TCP_DISCONNECTED_TIMER						120
#define NAT_TCP_CONNECTING_TIMER						300
#define NAT_TCP_CONNECTED_TIMER							(3600 * 12)
#define NAT_TCP_CLOSING_TIMER							0
#define SEQUENCE_ENTRY_TIMER							180
#define NAT_TRANSLATION_ENTRY_TIMER						120
#define NAT_UDP_TRANSLATION_ENTRY_TIMER					120
#define NAT_ICMP_TRANSLATION_ENTRY_TIMER				120

#define FTP_SERVER_PORT									21
#define FTP_PORT_STRING									"PORT"
#define FTP_PORT_PARAMETER_STRING						"PORT %hu,%hu,%hu,%hu,%hu,%hu\r\n"
#define FTP_PORT_PARAMETER_COUNT						6
#define FTP_PORT_STRING_END_MARKER						'\n'
#define FTP_MAXIMUM_PORT_STRING_LENGTH					60
#define FTP_PASV_STRING									"PASV"
#define FTP_PASV_PARAMETER_STRING						"%d Entering Passive Mode (%hu,%hu,%hu,%hu,%hu,%hu)\r\n"
#define FTP_PASV_PARAMETER_COUNT						7
#define FTP_PASV_STRING_END_MARKER						'\n' /* not ')' */
#define FTP_PASV_RETURN_CODE							227

#define CUSEEME_PORT									7648

#define NUMBER_OF_CORPORATE_NETWORK_ADDRESSES			5

#define MAXIMUM_NUMBER_OF_STATIC_ENTRIES				30
#define MAXIMUM_NUMBER_OF_IP_STATIC_ENTRIES				10
#define MAXIMUM_NUMBER_OF_TCP_STATIC_ENTRIES			10
#define MAXIMUM_NUMBER_OF_UDP_STATIC_ENTRIES			10

#define LOWER_EPHEMERAL_PORT_VALUE						1024
#define UPPER_EPHEMERAL_PORT_VALUE						8000

#endif	/* Don't add anything after this line */