2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS TCP/IP protocol driver
5 * PURPOSE: Transmission Control Protocol definitions
11 (*PTCP_COMPLETION_ROUTINE
)( PVOID Context
, NTSTATUS Status
, ULONG Count
);
13 /* TCPv4 header structure */
15 typedef struct TCPv4_HEADER
{
16 USHORT SourcePort
; /* Source port */
17 USHORT DestinationPort
; /* Destination port */
18 ULONG SequenceNumber
; /* Sequence number */
19 ULONG AckNumber
; /* Acknowledgement number */
20 UCHAR DataOffset
; /* Data offset; 32-bit words (leftmost 4 bits) */
21 UCHAR Flags
; /* Control bits (rightmost 6 bits) */
22 USHORT Window
; /* Maximum acceptable receive window */
23 USHORT Checksum
; /* Checksum of segment */
24 USHORT Urgent
; /* Pointer to urgent data */
25 } TCPv4_HEADER
, *PTCPv4_HEADER
;
27 /* TCPv4 header flags */
36 #define TCPOPT_END_OF_LIST 0x0
37 #define TCPOPT_NO_OPERATION 0x1
38 #define TCPOPT_MAX_SEG_SIZE 0x2
40 #define TCPOPTLEN_MAX_SEG_SIZE 0x4
42 /* Data offset; 32-bit words (leftmost 4 bits); convert to bytes */
43 #define TCP_DATA_OFFSET(DataOffset)(((DataOffset) & 0xF0) >> (4-2))
46 /* TCPv4 pseudo header */
47 typedef struct TCPv4_PSEUDO_HEADER
{
48 ULONG SourceAddress
; /* Source address */
49 ULONG DestinationAddress
; /* Destination address */
50 UCHAR Zero
; /* Reserved */
51 UCHAR Protocol
; /* Protocol */
52 USHORT TCPLength
; /* Size of TCP segment */
53 } TCPv4_PSEUDO_HEADER
, *PTCPv4_PSEUDO_HEADER
;
56 typedef struct _SLEEPING_THREAD
{
60 } SLEEPING_THREAD
, *PSLEEPING_THREAD
;
62 /* Retransmission timeout constants */
64 /* Lower bound for retransmission timeout in TCP timer ticks */
65 #define TCP_MIN_RETRANSMISSION_TIMEOUT 1*1000 /* 1 tick */
67 /* Upper bound for retransmission timeout in TCP timer ticks */
68 #define TCP_MAX_RETRANSMISSION_TIMEOUT 1*60*1000 /* 1 tick */
70 /* Smoothing factor */
71 #define TCP_ALPHA_RETRANSMISSION_TIMEOUT(x)(((x)*8)/10) /* 0.8 */
73 /* Delay variance factor */
74 #define TCP_BETA_RETRANSMISSION_TIMEOUT(x)(((x)*16)/10) /* 1.6 */
77 /* Datagram/segment send request flags */
79 #define SRF_URG TCP_URG
80 #define SRF_ACK TCP_ACK
81 #define SRF_PSH TCP_PSH
82 #define SRF_RST TCP_RST
83 #define SRF_SYN TCP_SYN
84 #define SRF_FIN TCP_FIN
86 extern LONG TCP_IPIdentification
;
87 extern LIST_ENTRY SignalledConnections
;
88 extern LIST_ENTRY SleepingThreadsList
;
89 extern FAST_MUTEX SleepingThreadsLock
;
90 extern RECURSIVE_MUTEX TCPLock
;
93 NTSTATUS
TCPServiceListeningSocket( PCONNECTION_ENDPOINT Listener
,
94 PCONNECTION_ENDPOINT Connection
,
95 PTDI_REQUEST_KERNEL Request
);
96 NTSTATUS
TCPListen( PCONNECTION_ENDPOINT Connection
, UINT Backlog
);
97 VOID
TCPAbortListenForSocket( PCONNECTION_ENDPOINT Listener
,
98 PCONNECTION_ENDPOINT Connection
);
100 ( PTDI_REQUEST Request
,
101 PCONNECTION_ENDPOINT Listener
,
102 PCONNECTION_ENDPOINT Connection
,
103 PTCP_COMPLETION_ROUTINE Complete
,
107 PCONNECTION_ENDPOINT
TCPAllocateConnectionEndpoint( PVOID ClientContext
);
108 VOID
TCPFreeConnectionEndpoint( PCONNECTION_ENDPOINT Connection
);
110 NTSTATUS
TCPSocket( PCONNECTION_ENDPOINT Connection
,
111 UINT Family
, UINT Type
, UINT Proto
);
113 PTCP_SEGMENT
TCPCreateSegment(
115 PTCPv4_HEADER TCPHeader
,
116 ULONG SegmentLength
);
119 PTCP_SEGMENT Segment
);
122 PCONNECTION_ENDPOINT Connection
,
123 PTCP_SEGMENT Segment
,
124 PULONG Acknowledged
);
127 PCONNECTION_ENDPOINT Connection
,
128 PTDI_CONNECTION_INFORMATION ConnInfo
,
129 PTDI_CONNECTION_INFORMATION ReturnInfo
,
130 PTCP_COMPLETION_ROUTINE Complete
,
133 NTSTATUS
TCPDisconnect(
134 PCONNECTION_ENDPOINT Connection
,
136 PTDI_CONNECTION_INFORMATION ConnInfo
,
137 PTDI_CONNECTION_INFORMATION ReturnInfo
,
138 PTCP_COMPLETION_ROUTINE Complete
,
141 NTSTATUS
TCPReceiveData(
142 PCONNECTION_ENDPOINT Connection
,
145 PULONG BytesReceived
,
147 PTCP_COMPLETION_ROUTINE Complete
,
150 NTSTATUS
TCPSendData(
151 PCONNECTION_ENDPOINT Connection
,
156 PTCP_COMPLETION_ROUTINE Complete
,
159 NTSTATUS
TCPClose( PCONNECTION_ENDPOINT Connection
);
161 PVOID
TCPPrepareInterface( PIP_INTERFACE IF
);
163 VOID
TCPDisposeInterfaceData( PVOID Data
);
165 NTSTATUS
TCPTranslateError( int OskitError
);
169 UINT
TCPAllocatePort( UINT HintPort
);
171 VOID
TCPFreePort( UINT Port
);
173 NTSTATUS TCPGetPeerAddress
174 ( PCONNECTION_ENDPOINT Connection
,
175 PTRANSPORT_ADDRESS TransportAddress
);
180 NTSTATUS
TCPShutdown(
183 VOID
TCPRemoveIRP( PCONNECTION_ENDPOINT Connection
, PIRP Irp
);