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tcp_socket Struct Reference
[XgTcpSocket, XgTcpSocket]

TCP socket information structure. More...

#include <sys/sock_var.h>

Data Fields
TCPSOCKET *	so_next
	Link to next tcp socket structure.
volatile u_char	so_state
	Connection state, see tcp_fsm.h.
u_long	so_local_addr
	Local IP address in net byte order.
u_short	so_local_port
	Local port number in net byte order.
u_long	so_remote_addr
	Remote IP address in net byte order.
u_short	so_remote_port
	Remote port number in net byte order.
u_char	so_tx_flags
	Flags used during transmissions - see below.
u_long	so_tx_isn
	Initial sequence number.
u_long	so_tx_una
	Unacknowledged sequence number.
u_long	so_tx_nxt
	Next sequence number to send.
u_long	so_tx_wl1
	Sequence number of last window update.
u_long	so_tx_wl2
	Acknowledged sequence of last window update.
u_short	so_tx_win
	Peer's receive window.
u_char	so_tx_dup
	Duplicate ACK counter.
NETBUF *	so_tx_nbq
	Network buffers waiting to be acknowledged.
HANDLE	so_tx_tq
	Threads waiting for transmit buffer space.
u_long	so_rx_isn
	Initial sequence number of remote.
u_long	so_rx_nxt
	Next sequence number to receive.
u_short	so_rx_win
	Local receive window.
u_short	so_rx_cnt
	Number of data bytes in the receive buffer.
u_short	so_rx_bsz
	Receive buffer size.
u_char *	so_rx_buf
	Data waiting to be read by application.
HANDLE	so_rx_tq
	Threads waiting for received data.
NETBUF *	so_rx_nbq
	Network buffers received in advance.
u_short	so_mss
	MSS, limited by remote option or MTU.
u_long	so_rto_next
	Next round-trip timeout.
u_long	so_srtt_avg
	Scaled round-trip timer average.
u_long	so_srtt_var
	Scaled round-trip timer variance.
u_short	so_retransmits
	Number of retransmits.
u_short	so_time_wait
	Time wait counter.
u_short	so_retran_time
	Retransmit time counter.
u_short	so_last_error
	Last error code.
HANDLE	so_pc_tq
	Listening thread.
HANDLE	so_ac_tq
	Connecting thread.
u_long	so_read_to
	Read timeout.
u_long	so_write_to
	Write timeout.
u_long	so_oos_drop
	Out of sequence dropped.

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Detailed Description

TCP socket information structure.

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The documentation for this struct was generated from the following file:

• sock_var.h

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