include/net/tcp_states.h

   1 /*
   2  * INET         An implementation of the TCP/IP protocol suite for the LINUX
   3  *              operating system.  INET is implemented using the  BSD Socket
   4  *              interface as the means of communication with the user level.
   5  *
   6  *              Definitions for the TCP protocol sk_state field.
   7  *
   8  *              This program is free software; you can redistribute it and/or
   9  *              modify it under the terms of the GNU General Public License
  10  *              as published by the Free Software Foundation; either version
  11  *              2 of the License, or (at your option) any later version.
  12  */
  13 #ifndef _LINUX_TCP_STATES_H
  14 #define _LINUX_TCP_STATES_H
  15
  16 enum {
  17         TCP_ESTABLISHED = 1,
  18         TCP_SYN_SENT,
  19         TCP_SYN_RECV,
  20         TCP_FIN_WAIT1,
  21         TCP_FIN_WAIT2,
  22         TCP_TIME_WAIT,
  23         TCP_CLOSE,
  24         TCP_CLOSE_WAIT,
  25         TCP_LAST_ACK,
  26         TCP_LISTEN,
  27         TCP_CLOSING,    /* Now a valid state */
  28         TCP_NEW_SYN_RECV,
  29
  30         TCP_MAX_STATES  /* Leave at the end! */
  31 };
  32
  33 #define TCP_STATE_MASK  0xF
  34
  35 #define TCP_ACTION_FIN  (1 << TCP_CLOSE)
  36
  37 enum {
  38         TCPF_ESTABLISHED = (1 << TCP_ESTABLISHED),
  39         TCPF_SYN_SENT    = (1 << TCP_SYN_SENT),
  40         TCPF_SYN_RECV    = (1 << TCP_SYN_RECV),
  41         TCPF_FIN_WAIT1   = (1 << TCP_FIN_WAIT1),
  42         TCPF_FIN_WAIT2   = (1 << TCP_FIN_WAIT2),
  43         TCPF_TIME_WAIT   = (1 << TCP_TIME_WAIT),
  44         TCPF_CLOSE       = (1 << TCP_CLOSE),
  45         TCPF_CLOSE_WAIT  = (1 << TCP_CLOSE_WAIT),
  46         TCPF_LAST_ACK    = (1 << TCP_LAST_ACK),
  47         TCPF_LISTEN      = (1 << TCP_LISTEN),
  48         TCPF_CLOSING     = (1 << TCP_CLOSING),
  49         TCPF_NEW_SYN_RECV = (1 << TCP_NEW_SYN_RECV),
  50 };
  51
  52 #endif  /* _LINUX_TCP_STATES_H */