mirror of
https://github.com/reactos/reactos.git
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185 lines
5 KiB
C
185 lines
5 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS TCP/IP protocol driver
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* FILE: include/tcp.h
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* PURPOSE: Transmission Control Protocol definitions
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*/
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#ifndef __TCP_H
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#define __TCP_H
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typedef VOID
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(*PTCP_COMPLETION_ROUTINE)( PVOID Context, NTSTATUS Status, ULONG Count );
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/* TCPv4 header structure */
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#include <pshpack1.h>
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typedef struct TCPv4_HEADER {
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USHORT SourcePort; /* Source port */
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USHORT DestinationPort; /* Destination port */
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ULONG SequenceNumber; /* Sequence number */
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ULONG AckNumber; /* Acknowledgement number */
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UCHAR DataOffset; /* Data offset; 32-bit words (leftmost 4 bits) */
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UCHAR Flags; /* Control bits (rightmost 6 bits) */
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USHORT Window; /* Maximum acceptable receive window */
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USHORT Checksum; /* Checksum of segment */
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USHORT Urgent; /* Pointer to urgent data */
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} TCPv4_HEADER, *PTCPv4_HEADER;
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/* TCPv4 header flags */
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#define TCP_URG 0x20
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#define TCP_ACK 0x10
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#define TCP_PSH 0x08
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#define TCP_RST 0x04
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#define TCP_SYN 0x02
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#define TCP_FIN 0x01
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#define TCPOPT_END_OF_LIST 0x0
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#define TCPOPT_NO_OPERATION 0x1
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#define TCPOPT_MAX_SEG_SIZE 0x2
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#define TCPOPTLEN_MAX_SEG_SIZE 0x4
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/* Data offset; 32-bit words (leftmost 4 bits); convert to bytes */
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#define TCP_DATA_OFFSET(DataOffset)(((DataOffset) & 0xF0) >> (4-2))
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/* TCPv4 pseudo header */
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typedef struct TCPv4_PSEUDO_HEADER {
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ULONG SourceAddress; /* Source address */
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ULONG DestinationAddress; /* Destination address */
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UCHAR Zero; /* Reserved */
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UCHAR Protocol; /* Protocol */
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USHORT TCPLength; /* Size of TCP segment */
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} TCPv4_PSEUDO_HEADER, *PTCPv4_PSEUDO_HEADER;
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#include <poppack.h>
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typedef struct _SLEEPING_THREAD {
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LIST_ENTRY Entry;
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PVOID SleepToken;
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KEVENT Event;
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} SLEEPING_THREAD, *PSLEEPING_THREAD;
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typedef struct _CLIENT_DATA {
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BOOLEAN Unlocked;
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KSPIN_LOCK Lock;
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} CLIENT_DATA, *PCLIENT_DATA;
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/* Retransmission timeout constants */
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/* Lower bound for retransmission timeout in TCP timer ticks */
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#define TCP_MIN_RETRANSMISSION_TIMEOUT 1*1000 /* 1 tick */
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/* Upper bound for retransmission timeout in TCP timer ticks */
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#define TCP_MAX_RETRANSMISSION_TIMEOUT 1*60*1000 /* 1 tick */
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/* Smoothing factor */
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#define TCP_ALPHA_RETRANSMISSION_TIMEOUT(x)(((x)*8)/10) /* 0.8 */
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/* Delay variance factor */
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#define TCP_BETA_RETRANSMISSION_TIMEOUT(x)(((x)*16)/10) /* 1.6 */
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/* Datagram/segment send request flags */
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#define SRF_URG TCP_URG
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#define SRF_ACK TCP_ACK
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#define SRF_PSH TCP_PSH
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#define SRF_RST TCP_RST
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#define SRF_SYN TCP_SYN
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#define SRF_FIN TCP_FIN
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extern LONG TCP_IPIdentification;
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extern CLIENT_DATA ClientInfo;
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/* accept.c */
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NTSTATUS TCPServiceListeningSocket( PCONNECTION_ENDPOINT Listener,
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PCONNECTION_ENDPOINT Connection,
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PTDI_REQUEST_KERNEL Request );
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NTSTATUS TCPListen( PCONNECTION_ENDPOINT Connection, UINT Backlog );
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BOOLEAN TCPAbortListenForSocket( PCONNECTION_ENDPOINT Listener,
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PCONNECTION_ENDPOINT Connection );
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NTSTATUS TCPAccept
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( PTDI_REQUEST Request,
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PCONNECTION_ENDPOINT Listener,
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PCONNECTION_ENDPOINT Connection,
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PTCP_COMPLETION_ROUTINE Complete,
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PVOID Context );
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/* tcp.c */
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PCONNECTION_ENDPOINT TCPAllocateConnectionEndpoint( PVOID ClientContext );
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VOID TCPFreeConnectionEndpoint( PCONNECTION_ENDPOINT Connection );
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NTSTATUS TCPSocket( PCONNECTION_ENDPOINT Connection,
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UINT Family, UINT Type, UINT Proto );
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VOID HandleSignalledConnection(PCONNECTION_ENDPOINT Connection);
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PTCP_SEGMENT TCPCreateSegment(
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PIP_PACKET IPPacket,
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PTCPv4_HEADER TCPHeader,
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ULONG SegmentLength);
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VOID TCPFreeSegment(
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PTCP_SEGMENT Segment);
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VOID TCPAddSegment(
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PCONNECTION_ENDPOINT Connection,
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PTCP_SEGMENT Segment,
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PULONG Acknowledged);
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NTSTATUS TCPConnect(
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PCONNECTION_ENDPOINT Connection,
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PTDI_CONNECTION_INFORMATION ConnInfo,
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PTDI_CONNECTION_INFORMATION ReturnInfo,
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PTCP_COMPLETION_ROUTINE Complete,
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PVOID Context);
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NTSTATUS TCPDisconnect(
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PCONNECTION_ENDPOINT Connection,
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UINT Flags,
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PTDI_CONNECTION_INFORMATION ConnInfo,
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PTDI_CONNECTION_INFORMATION ReturnInfo,
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PTCP_COMPLETION_ROUTINE Complete,
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PVOID Context);
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NTSTATUS TCPReceiveData(
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PCONNECTION_ENDPOINT Connection,
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PNDIS_BUFFER Buffer,
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ULONG ReceiveLength,
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PULONG BytesReceived,
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ULONG ReceiveFlags,
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PTCP_COMPLETION_ROUTINE Complete,
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PVOID Context);
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NTSTATUS TCPSendData(
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PCONNECTION_ENDPOINT Connection,
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PCHAR Buffer,
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ULONG DataSize,
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PULONG DataUsed,
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ULONG Flags,
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PTCP_COMPLETION_ROUTINE Complete,
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PVOID Context);
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NTSTATUS TCPClose( PCONNECTION_ENDPOINT Connection );
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NTSTATUS TCPTranslateError( int OskitError );
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UINT TCPAllocatePort( UINT HintPort );
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VOID TCPFreePort( UINT Port );
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NTSTATUS TCPGetSockAddress
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( PCONNECTION_ENDPOINT Connection,
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PTRANSPORT_ADDRESS TransportAddress,
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BOOLEAN RemoteAddress );
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NTSTATUS TCPStartup(
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VOID);
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NTSTATUS TCPShutdown(
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VOID);
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BOOLEAN TCPRemoveIRP( PCONNECTION_ENDPOINT Connection, PIRP Irp );
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#endif /* __TCP_H */
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