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334 lines
10 KiB
334 lines
10 KiB
/*****************************************************************************
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*
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* Copyright (c) 1998-1999 Microsoft Corporation
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*
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* PROTOCOL.H - PPTP and GRE Protocol data types and constants
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*
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* Author: Stan Adermann (stana)
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*
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* Created: 7/23/1998
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*
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*****************************************************************************/
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#ifndef PROTOCOL_H
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#define PROTOCOL_H
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/* IP ----------------------------------------------------------------------*/
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typedef struct {
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UCHAR HeaderLength : 4;
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UCHAR Version : 4;
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UCHAR TypeOfService;
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USHORT TotalLength;
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USHORT Identification;
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USHORT FlagsAndFragmentOffset;
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UCHAR TimeToLive;
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UCHAR Protocol;
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USHORT Checksum;
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ULONG SourceIp;
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ULONG DestinationIp;
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} IP4_HEADER, *PIP4_HEADER;
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typedef struct {
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USHORT SourcePort;
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USHORT DestinationPort;
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USHORT Length;
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USHORT Checksum;
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} UDP_HEADER, *PUDP_HEADER;
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/* GRE ---------------------------------------------------------------------*/
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typedef struct {
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UCHAR RecursionControl : 3;
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UCHAR StrictSourceRoutePresent : 1;
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UCHAR SequenceNumberPresent : 1;
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UCHAR KeyPresent : 1;
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UCHAR RoutingPresent : 1;
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UCHAR ChecksumPresent : 1;
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UCHAR Version : 3;
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UCHAR Flags : 4;
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UCHAR AckSequenceNumberPresent : 1;
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USHORT ProtocolType;
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#define GRE_PROTOCOL_TYPE 0x880B
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#define GRE_PROTOCOL_TYPE_NS 0x0B88
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USHORT KeyLength;
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USHORT KeyCallId;
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} GRE_HEADER, *PGRE_HEADER;
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#define GreSequence(g) (*(PULONG)(((PUCHAR)(g)) + sizeof(GRE_HEADER)))
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#define GreAckSequence(g) \
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((g)->SequenceNumberPresent ? \
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(*(PULONG)(((PUCHAR)(g)) + sizeof(GRE_HEADER) + sizeof(ULONG))) : \
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GreSequence(g))
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/* PPTP --------------------------------------------------------------------*/
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#define PPTP_TCP_PORT 1723
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#define PPTP_IP_GRE_PROTOCOL 47
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#define PPTP_PROTOCOL_VERSION_1_00 0x100
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#define PPTP_PROTOCOL_SECURE_VERSION 0x200
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#define PPTP_MAGIC_COOKIE 0x1A2B3C4D
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#define INADDR_NONE 0xffffffff
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#define MAX_HOSTNAME_LENGTH 64
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#define MAX_VENDOR_LENGTH 64
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#define MAX_PHONE_NUMBER_LENGTH 64
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#define MAX_SUBADDRESS_LENGTH 64
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#define MAX_CALL_STATS_LENGTH 128
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#define PPTP_MAX_PACKET_SIZE 1532
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#define PPTP_MAX_LOOKAHEAD PPTP_MAX_PACKET_SIZE
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#define PPTP_MAX_TRANSMIT 32
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#define PPTP_MAX_RECEIVE_SIZE (1614+20+12+8) // To allow for PPP padding, etc.
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#define PPTP_RECV_WINDOW 64
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#define PPTP_STATUS_SUCCESS 0
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#define PPTP_STATUS_NOT_CONNECTED 1
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#define PPTP_STATUS_BAD_FORMAT 2
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#define PPTP_STATUS_BAD_VALUE 3
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#define PPTP_STATUS_INSUFFICIENT_RESOURCES 4
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#define PPTP_STATUS_BAD_CALL_ID 5
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#define PPTP_STATUS_PAC_ERROR 6
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typedef enum {
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PPTP_CONTROL_MESSAGE = 1
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} PPTP_PACKET_TYPE;
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typedef enum {
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CONTROL_START_REQUEST = 1,
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CONTROL_START_REPLY,
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CONTROL_STOP_REQUEST,
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CONTROL_STOP_REPLY,
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CONTROL_ECHO_REQUEST,
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CONTROL_ECHO_REPLY,
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CALL_OUT_REQUEST,
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CALL_OUT_REPLY,
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CALL_IN_REQUEST,
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CALL_IN_REPLY,
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CALL_IN_CONNECTED,
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CALL_CLEAR_REQUEST,
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CALL_DISCONNECT_NOTIFY,
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WAN_ERROR_NOTIFY,
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SET_LINK_INFO,
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NUM_MESSAGE_TYPES
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} PPTP_MESSAGE_TYPE;
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typedef struct {
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USHORT Length;
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USHORT PacketType;
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ULONG Cookie;
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USHORT MessageType;
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USHORT Reserved0;
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} PPTP_HEADER, *PPPTP_HEADER;
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typedef struct {
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PPTP_HEADER;
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USHORT Version;
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union {
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USHORT Reserved1;
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struct {
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UCHAR ResultCode;
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#define RESULT_CONTROL_START_SUCCESS 1
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#define RESULT_CONTROL_START_ERROR 2
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#define RESULT_CONTROL_START_ALREADY_CONNECTED 3
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#define RESULT_CONTROL_START_UNAUTHORIZED 4
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#define RESULT_CONTROL_START_VERSION_NOT_SUPPORTED 5
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UCHAR ErrorCode;
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};
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};
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ULONG FramingCapabilities;
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#define FRAMING_ASYNC BIT(0)
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#define FRAMING_SYNC BIT(1)
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ULONG BearerCapabilities;
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#define BEARER_ANALOG BIT(0)
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#define BEARER_DIGITAL BIT(1)
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USHORT MaxChannels;
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USHORT FirmwareRevision;
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UCHAR HostName[MAX_HOSTNAME_LENGTH];
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UCHAR Vendor[MAX_VENDOR_LENGTH];
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} PPTP_CONTROL_START_PACKET, *PPPTP_CONTROL_START_PACKET;
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typedef struct {
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PPTP_HEADER;
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union {
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struct {
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UCHAR Reason;
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#define CONTROL_STOP_GENERAL 1
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#define CONTROL_STOP_VERSION 2
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#define CONTROL_STOP_LOCAL 3
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UCHAR Reserved1;
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};
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struct {
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UCHAR ResultCode;
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#define RESULT_CONTROL_STOP_SUCCESS 1
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#define RESULT_CONTROL_STOP_ERROR 2
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UCHAR ErrorCode;
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};
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};
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USHORT Reserved2;
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} PPTP_CONTROL_STOP_PACKET, *PPPTP_CONTROL_STOP_PACKET;
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typedef struct {
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PPTP_HEADER;
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ULONG Identifier;
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} PPTP_CONTROL_ECHO_REQUEST_PACKET, *PPPTP_CONTROL_ECHO_REQUEST_PACKET;
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typedef struct {
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PPTP_HEADER;
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ULONG Identifier;
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UCHAR ResultCode;
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#define RESULT_CONTROL_ECHO_SUCCESS 1
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#define RESULT_CONTROL_ECHO_FAILURE 2
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UCHAR ErrorCode;
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USHORT Reserved1;
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} PPTP_CONTROL_ECHO_REPLY_PACKET, *PPPTP_CONTROL_ECHO_REPLY_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT CallId;
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USHORT SerialNumber;
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ULONG MinimumBPS;
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ULONG MaximumBPS;
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ULONG BearerType;
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ULONG FramingType;
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USHORT RecvWindowSize;
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USHORT ProcessingDelay;
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USHORT PhoneNumberLength;
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USHORT Reserved1;
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UCHAR PhoneNumber[MAX_PHONE_NUMBER_LENGTH];
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UCHAR Subaddress[MAX_SUBADDRESS_LENGTH];
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} PPTP_CALL_OUT_REQUEST_PACKET, *PPPTP_CALL_OUT_REQUEST_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT CallId;
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USHORT PeerCallId;
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UCHAR ResultCode;
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#define RESULT_CALL_OUT_CONNECTED 1
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#define RESULT_CALL_OUT_ERROR 2
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#define RESULT_CALL_OUT_NO_CARRIER 3
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#define RESULT_CALL_OUT_BUSY 4
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#define RESULT_CALL_OUT_NO_DIAL_TONE 5
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#define RESULT_CALL_OUT_TIMEOUT 6
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#define RESULT_CALL_OUT_REFUSED 7
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UCHAR ErrorCode;
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USHORT CauseCode;
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ULONG ConnectSpeed;
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USHORT RecvWindowSize;
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USHORT ProcessingDelay;
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ULONG PhysicalChannelId;
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} PPTP_CALL_OUT_REPLY_PACKET, *PPPTP_CALL_OUT_REPLY_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT CallId;
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USHORT SerialNumber;
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ULONG BearerType;
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ULONG PhysicalChannelId;
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USHORT DialedNumberLength;
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USHORT DialingNumberLength;
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UCHAR DialedNumber[MAX_PHONE_NUMBER_LENGTH];
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UCHAR DialingNumber[MAX_PHONE_NUMBER_LENGTH];
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UCHAR Subaddress[MAX_SUBADDRESS_LENGTH];
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} PPTP_CALL_IN_REQUEST_PACKET, *PPPTP_CALL_IN_REQUEST_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT CallId;
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USHORT PeerCallId;
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UCHAR ResultCode;
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#define RESULT_CALL_IN_CONNECTED 1
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#define RESULT_CALL_IN_ERROR 2
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#define RESULT_CALL_IN_REFUSED 3
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UCHAR ErrorCode;
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USHORT RecvWindowSize;
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USHORT ProcessingDelay;
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USHORT Reserved1;
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} PPTP_CALL_IN_REPLY_PACKET, *PPPTP_CALL_IN_REPLY_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT PeerCallId;
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USHORT Reserved1;
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ULONG ConnectSpeed;
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USHORT RecvWindowSize;
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USHORT ProcessingDelay;
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ULONG FramingType;
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} PPTP_CALL_IN_CONNECT_PACKET, *PPPTP_CALL_IN_CONNECT_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT CallId;
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USHORT Reserved1;
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} PPTP_CALL_CLEAR_REQUEST_PACKET, *PPPTP_CALL_CLEAR_REQUEST_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT CallId;
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UCHAR ResultCode;
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#define RESULT_CALL_DISCONNECT_LOST_CARRIER 1
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#define RESULT_CALL_DISCONNECT_ERROR 2
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#define RESULT_CALL_DISCONNECT_ADMIN 3
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#define RESULT_CALL_DISCONNECT_REQUEST 4
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UCHAR ErrorCode;
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USHORT CauseCode;
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USHORT Reserved1;
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UCHAR CallStatistics[MAX_CALL_STATS_LENGTH];
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} PPTP_CALL_DISCONNECT_NOTIFY_PACKET, *PPPTP_CALL_DISCONNECT_NOTIFY_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT PeerCallId;
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USHORT Reserved1;
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ULONG CrcErrors;
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ULONG FramingErrors;
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ULONG HardwareOverruns;
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ULONG BufferOverruns;
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ULONG TimeoutErrors;
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ULONG AlignmentErrors;
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} PPTP_WAN_ERROR_NOTIFY_PACKET, *PPPTP_WAN_ERROR_NOTIFY_PACKET;
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typedef struct {
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PPTP_HEADER;
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USHORT PeerCallId;
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USHORT Reserved1;
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ULONG SendAccm;
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ULONG RecvAccm;
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} PPTP_SET_LINK_INFO_PACKET, *PPPTP_SET_LINK_INFO_PACKET;
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#define MAX_CONTROL_PACKET_LENGTH sizeof(PPTP_CALL_IN_REQUEST_PACKET)
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#endif //PROTOCOL_H
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