CTL_TCP_SOCKET_STATE

Synopsis

typedef enum {
  CTL_NCP_SOCKET_STATE_UNALLOCATED,
  CTL_NCP_SOCKET_STATE_CLOSED,
  CTL_NCP_SOCKET_STATE_LISTEN,
  CTL_NCP_SOCKET_SYN_SENT,
  CTL_NCP_SOCKET_SYN_RECEIVED,
  CTL_NCP_SOCKET_ESTABLISHED,
  CTL_NCP_SOCKET_FIN_WAIT1,
  CTL_NCP_SOCKET_FIN_WAIT2,
  CTL_NCP_SOCKET_CLOSE_WAIT,
  CTL_NCP_SOCKET_CLOSING,
  CTL_NCP_SOCKET_LAST_ACK,
  CTL_NCP_SOCKET_TIME_WAIT
} CTL_TCP_SOCKET_STATE_t;

Description

CTL_TCP_SOCKET_STATE_t describes the state of the socket along the lines of RFC 793.

CTL_NCP_SOCKET_STATE_UNALLOCATED: NOT RFC 793...kind of like "Super Duper Closed". The RFC assumes that the system has dynamic socket allocation; we don't.
CTL_NCP_SOCKET_STATE_CLOSED: No connection state at all.
CTL_NCP_SOCKET_STATE_LISTEN: Waiting for a connection request from any remote TCP and port.
CTL_NCP_SOCKET_SYN_SENT: Waiting for a matching connection request after having sent a connection request.
CTL_NCP_SOCKET_SYN_RECEIVED: Waiting for a confirming connection request acknowledgment after having both received and sent a connection request.
CTL_NCP_SOCKET_ESTABLISHED: An open connection, data received can be delivered to the user. The normal state for the data transfer phase of the connection.
CTL_NCP_SOCKET_FIN_WAIT1: Waiting for a connection termination request from the remote TCP, or an acknowledgment of the connection termination request previously sent.
CTL_NCP_SOCKET_FIN_WAIT2: Waiting for a connection termination request from the remote TCP.
CTL_NCP_SOCKET_CLOSE_WAIT: Waiting for a connection termination request from the local user.
CTL_NCP_SOCKET_CLOSING: Waiting for a connection termination request acknowledgment from the remote TCP.
CTL_NCP_SOCKET_LAST_ACK: Waiting for an acknowledgment of the connection termination request previously sent to the remote TCP (which includes an acknowledgment of its connection termination request).
CTL_NCP_SOCKET_TIME_WAIT: Waiting for enough time to pass to be sure the remote TCP received the acknowledgment of its connection termination request.