Leaked source code of windows server 2003
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/*==========================================================================
* * Copyright (C) 1998-2002 Microsoft Corporation. All Rights Reserved. * * File: Locals.h * Content: Global information for the DNWSock service provider * * * History: * Date By Reason * ==== == ====== * 11/25/98 jtk Created ***************************************************************************/
#ifndef __LOCALS_H__
#define __LOCALS_H__
//**********************************************************************
// Constant definitions
//**********************************************************************
//
// Smallest and largest reasonable values for the Maximum Transmission Unit.
//
#define MIN_MTU 128
#define MAX_MTU 1500
//
// Header sizes
//
#define IP_HEADER_SIZE 20
#define UDP_HEADER_SIZE 8
#define IP_UDP_HEADER_SIZE (IP_HEADER_SIZE + UDP_HEADER_SIZE)
#define ESP_HEADER_SIZE 8
#define ENCRYPTIONIV_HEADER_SIZE 8
#define PADDING_FOR_MAX_PACKET 4
#define ICV_AUTHENTICATION_SIZE 12
#define MAX_ENCAPSULATION_SIZE (ESP_HEADER_SIZE + ENCRYPTIONIV_HEADER_SIZE + UDP_HEADER_SIZE + PADDING_FOR_MAX_PACKET + ICV_AUTHENTICATION_SIZE)
// This should equal 1430 bytes, the Xbox secure networking UDP payload limit.
#define NONDPLAY_HEADER_SIZE (IP_UDP_HEADER_SIZE + MAX_ENCAPSULATION_SIZE)
#define ENUM_PAYLOAD_HEADER_SIZE (sizeof(PREPEND_BUFFER))
//
// Smallest and largest reasonable values for the maximum amount of data in
// a frame that we send.
//
#define MIN_SEND_FRAME_SIZE (MIN_MTU - NONDPLAY_HEADER_SIZE)
#define MAX_SEND_FRAME_SIZE (MAX_MTU - NONDPLAY_HEADER_SIZE)
//
// Default maximum user payload size in bytes. We don't use just
// MAX_SEND_FRAME_SIZE because some broken routers can't handle IP
// fragmentation properly in cases where the MTU is actually less than 1500.
// The actual value used can be overridden (between MIN_SEND_FRAME_SIZE
// and MAX_SEND_FRAME_SIZE) via the registry.
//
#define DEFAULT_MAX_USER_DATA_SIZE (MAX_SEND_FRAME_SIZE - 48)
//
// Default maximume enum payload size in bytes. We use something less than
// DEFAULT_MAX_USER_DATA_SIZE to give us room to expand our enum
// information. The actual value used can be overridden (between
// MIN_SEND_FRAME_SIZE and MAX_SEND_FRAME_SIZE) via the registry.
//
#define DEFAULT_MAX_ENUM_DATA_SIZE 1000
//
// Older versions of DPlay (or new ones with modified registry settings) may
// send us larger packets, so expect to handle that.
//
#define MAX_RECEIVE_FRAME_SIZE (MAX_MTU - IP_UDP_HEADER_SIZE)
//
// maximum value of a 32-bit unsigned variable
//
#define UINT32_MAX ((DWORD) 0xFFFFFFFF)
#define WORD_MAX ((WORD) 0xFFFF)
//
// default enum retries for Winsock SP and retry time (milliseconds)
//
#ifdef _XBOX
// Xbox design TCR 3-59 Session Discovery Time for System Link Play
// The game must discover sessions for system link play in no more than three seconds
#define DEFAULT_ENUM_RETRY_COUNT 3
#define DEFAULT_ENUM_RETRY_INTERVAL 750
#define DEFAULT_ENUM_TIMEOUT 750
#else // ! _XBOX
#define DEFAULT_ENUM_RETRY_COUNT 5
#define DEFAULT_ENUM_RETRY_INTERVAL 1500
#define DEFAULT_ENUM_TIMEOUT 1500
#endif // ! _XBOX
#define ENUM_RTT_ARRAY_SIZE 16 // also see ENUM_RTT_MASK
#ifndef DPNBUILD_ONLYONEADAPTER
//
// Private address key that allows for friendlier multi-device commands issued
// using xxxADDRESSINFO indications; specifically, this allows us to detect
// responses sent to the "wrong" adapter when the core multiplexes an
// enum or connect into multiple adapters.
//
#define DPNA_PRIVATEKEY_MULTIPLEXED_ADAPTER_ASSOCIATION L"pk_ipsp_maa"
//
// Private address key that allows for friendlier multi-device commands issued
// using xxxADDRESSINFO indications; specifically, this allows us to distinguish
// between the user specifying a fixed port and the core handing us back the
// port we chose for a previous adapter when it multiplexes an enum, connect,
// or listen into multiple adapters.
//
#define DPNA_PRIVATEKEY_PORT_NOT_SPECIFIC L"pk_ipsp_pns"
#endif // ! DPNBUILD_ONLYONEADAPTER
#if ((! defined(DPNBUILD_NOWINSOCK2)) || (! defined(DPNBUILD_NOREGISTRY)))
//
// Private address key designed to improve support for MS Proxy/ISA Firewall
// client software. This key tracks the original target address for enums so
// that if the application closes the socketport before trying to connect to
// the responding address, the connect attempts will go to the real target
// instead of the old proxy address.
//
#define DPNA_PRIVATEKEY_PROXIED_RESPONSE_ORIGINAL_ADDRESS L"pk_ipsp_proa"
#endif // ! DPNBUILD_NOWINSOCK2 or ! DPNBUILD_NOREGISTRY
//
// 192.168.0.1 in network byte order
//
#define IP_PRIVATEICS_ADDRESS 0x0100A8C0
//
// 127.0.0.1 in network byte order
//
#define IP_LOOPBACK_ADDRESS 0x0100007F
//
// 1110 high bits or 224.0.0.0 - 239.255.255.255 multicast address, in network byte order
//
#define IS_CLASSD_IPV4_ADDRESS(dwAddr) (( (*((BYTE*) &(dwAddr))) & 0xF0) == 0xE0)
#define NTOHS(x) ( (((x) >> 8) & 0x00FF) | (((x) << 8) & 0xFF00) )
#define HTONS(x) NTOHS(x)
#ifndef DPNBUILD_NOMULTICAST
#define MULTICAST_TTL_PRIVATE 1
#define MULTICAST_TTL_PRIVATE_AS_STRING L"1"
#define MULTICAST_TTL_LOCAL 16
#define MULTICAST_TTL_LOCAL_AS_STRING L"16"
#define MULTICAST_TTL_GLOBAL 255
#define MULTICAST_TTL_GLOBAL_AS_STRING L"255"
#endif // ! DPNBUILD_NOMULTICAST
//**********************************************************************
// Macro definitions
//**********************************************************************
//**********************************************************************
// Structure definitions
//**********************************************************************
//
// forward structure and class references
//
typedef struct IDP8ServiceProvider IDP8ServiceProvider;
//**********************************************************************
// Variable definitions
//**********************************************************************
#if ((! defined(WINCE)) && (! defined(_XBOX)))
//
// DLL instance
//
extern HINSTANCE g_hDLLInstance;#endif // ! WINCE and ! _XBOX
#ifdef _XBOX
extern BOOL g_fStartedXNet;#endif // _XBOX
#ifndef DPNBUILD_LIBINTERFACE
//
// count of outstanding COM interfaces
//
extern volatile LONG g_lOutstandingInterfaceCount;#endif // ! DPNBUILD_LIBINTERFACE
#ifndef DPNBUILD_ONLYONETHREAD
//
// thread count
//
extern LONG g_iThreadCount;#endif // ! DPNBUILD_ONLYONETHREAD
#ifndef DPNBUILD_NOREGISTRY
#if ((! defined(DPNBUILD_NOWINSOCK2)) && (! defined(DPNBUILD_ONLYWINSOCK2)))
extern DWORD g_dwWinsockVersion;#endif // ! DPNBUILD_NOWINSOCK2 and ! DPNBUILD_ONLYWINSOCK2
#endif // ! DPNBUILD_NOREGISTRY
//
// Winsock receive buffer size
//
extern BOOL g_fWinsockReceiveBufferSizeOverridden;extern INT g_iWinsockReceiveBufferSize;
//
// GUIDs for munging device and scope IDs
//
extern GUID g_IPSPEncryptionGuid;
#ifndef DPNBUILD_NOIPX
extern GUID g_IPXSPEncryptionGuid;#endif // ! DPNBUILD_NOIPX
#ifndef DPNBUILD_NOIPV6
//
// IPv6 link-local multicast address for enumerating DirectPlay sessions
//
extern const IN6_ADDR c_in6addrEnumMulticast;#endif // ! DPNBUILD_NOIPV6
#ifndef DPNBUILD_NONATHELP
//
// global NAT/firewall traversal information
//
#ifdef DPNBUILD_ONLYONENATHELP
#define MAX_NUM_DIRECTPLAYNATHELPERS 1
#else // ! DPNBUILD_ONLYONENATHELP
#define MAX_NUM_DIRECTPLAYNATHELPERS 5
#endif // ! DPNBUILD_ONLYONENATHELP
#define FORCE_TRAVERSALMODE_BIT 0x80000000 // make the default mode override any app specific settings
#ifndef DPNBUILD_NOREGISTRY
extern BOOL g_fDisableDPNHGatewaySupport;extern BOOL g_fDisableDPNHFirewallSupport;extern DWORD g_dwDefaultTraversalMode;#endif // ! DPNBUILD_NOREGISTRY
extern IDirectPlayNATHelp ** g_papNATHelpObjects;#ifndef DPNBUILD_NOLOCALNAT
extern BOOL g_fLocalNATDetectedAtStartup;#endif // ! DPNBUILD_NOLOCALNAT
#endif // DPNBUILD_NONATHELP
#ifndef DPNBUILD_NOREGISTRY
#if ((defined(WINNT)) && (! defined(DPNBUILD_NOMULTICAST)))
extern BOOL g_fDisableMadcapSupport;extern MCAST_CLIENT_UID g_mcClientUid;#endif // WINNT and not DPNBUILD_NOMULTICAST
//
// ignore enums performance option
//
extern BOOL g_fIgnoreEnums;
//
// disconnect upon reception of ICMP port not reachable option
//
extern BOOL g_fDisconnectOnICMP;
#ifndef DPNBUILD_NOIPV6
//
// IPv4 only/IPv6 only/hybrid setting
//
extern int g_iIPAddressFamily;#endif // ! DPNBUILD_NOIPV6
//
// IP banning globals
//
extern CHashTable * g_pHashBannedIPv4Addresses;extern DWORD g_dwBannedIPv4Masks;
//
// proxy support options
//
#ifndef DPNBUILD_NOWINSOCK2
extern BOOL g_fDontAutoDetectProxyLSP;#endif // !DPNBUILD_NOWINSOCK2
extern BOOL g_fTreatAllResponsesAsProxied;
//
// settings for overriding MTU
//
extern DWORD g_dwMaxUserDataSize;extern DWORD g_dwMaxEnumDataSize;
//
// default port range
//
extern WORD g_wBaseDPlayPort;extern WORD g_wMaxDPlayPort;
#endif // ! DPNBUILD_NOREGISTRY
//
// ID of most recent endpoint generated
//
extern DWORD g_dwCurrentEndpointID;
#ifdef DBG
//
// Bilink for tracking DPNWSock critical sections
//
extern CBilink g_blDPNWSockCritSecsHeld;#endif // DBG
#ifdef DPNBUILD_WINSOCKSTATISTICS
//
// Winsock debugging/tuning stats
//
extern DWORD g_dwWinsockStatNumSends;extern DWORD g_dwWinsockStatSendCallTime;#endif // DPNBUILD_WINSOCKSTATISTICS
#ifndef DPNBUILD_NOREGISTRY
//
// Registry strings
//
extern const WCHAR g_RegistryBase[];
extern const WCHAR g_RegistryKeyReceiveBufferSize[];#ifndef DPNBUILD_ONLYONETHREAD
extern const WCHAR g_RegistryKeyThreadCount[];#endif // ! DPNBUILD_ONLYONETHREAD
#if ((! defined(DPNBUILD_NOWINSOCK2)) && (! defined(DPNBUILD_ONLYWINSOCK2)))
extern const WCHAR g_RegistryKeyWinsockVersion[];#endif // ! DPNBUILD_NOWINSOCK2 and ! DPNBUILD_ONLYWINSOCK2
#ifndef DPNBUILD_NONATHELP
extern const WCHAR g_RegistryKeyDisableDPNHGatewaySupport[];extern const WCHAR g_RegistryKeyDisableDPNHFirewallSupport[];extern const WCHAR g_RegistryKeyTraversalModeSettings[];extern const WCHAR g_RegistryKeyDefaultTraversalMode[];#endif // ! DPNBUILD_NONATHELP
extern const WCHAR g_RegistryKeyAppsToIgnoreEnums[];extern const WCHAR g_RegistryKeyAppsToDisconnectOnICMP[];
#ifndef DPNBUILD_NOIPV6
extern const WCHAR g_RegistryKeyIPAddressFamilySettings[];extern const WCHAR g_RegistryKeyDefaultIPAddressFamily[];#endif // ! DPNBUILD_NOIPV6
#ifndef DPNBUILD_NOWINSOCK2
extern const WCHAR g_RegistryKeyDontAutoDetectProxyLSP[];#endif // ! DPNBUILD_NOWINSOCK2
extern const WCHAR g_RegistryKeyTreatAllResponsesAsProxied[];
#if ((defined(WINNT)) && (! defined(DPNBUILD_NOMULTICAST)))
extern const WCHAR g_RegistryKeyDisableMadcapSupport[];#endif // WINNT and not DPNBUILD_NOMULTICAST
extern const WCHAR g_RegistryKeyMaxUserDataSize[];extern const WCHAR g_RegistryKeyMaxEnumDataSize[];
extern const WCHAR g_RegistryKeyBaseDPlayPort[];extern const WCHAR g_RegistryKeyMaxDPlayPort[];
extern const WCHAR g_RegistryKeyBannedIPv4Addresses[];
#endif // ! DPNBUILD_NOREGISTRY
#endif // __LOCALS_H__
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