client.h

   1 /*
   2  * Copyright (C) 1997-2010 Andre Noll <maan@systemlinux.org>
   3  *
   4  * Licensed under the GPL v2. For licencing details see COPYING.
   5  */
   6
   7 /** \file client.h Common client functions and exported symbols from client_common.c. */
   8
   9 #include <openssl/rc4.h>
  10
  11 /** The different states of a connection from the view of the client. */
  12 enum {
  13         /** TCP connection is established. */
  14         CL_CONNECTED,
  15         /** Server sends the welcome message. */
  16         CL_RECEIVED_WELCOME,
  17         /** Client sends the authentification request. */
  18         CL_SENT_AUTH,
  19         /** Client solves the challenge and sends the result. */
  20         CL_SENT_CH_RESPONSE,
  21         /** Server accepts this authentication. */
  22         CL_RECEIVED_PROCEED,
  23         /** Client sends the command. */
  24         CL_SENT_COMMAND,
  25         /** Server expects data. */
  26         CL_SENDING,
  27         /** Client expects data. */
  28         CL_RECEIVING,
  29 };
  30
  31 /** Data specific to a client task. */
  32 struct client_task {
  33         /** The state of the connection. */
  34         int status;
  35         /** The file descriptor and the rc4 keys. */
  36         struct rc4_context rc4c;
  37         /** The configuration (including the command). */
  38         struct client_args_info conf;
  39         /** The config file for client options. */
  40         char *config_file;
  41         /** The RSA private key. */
  42         char *key_file;
  43         /** Paraslash user name. */
  44         char *user;
  45         /** The client task structure. */
  46         struct task task;
  47         struct btr_node *btrn;
  48 };
  49
  50 void client_close(struct client_task *ct);
  51 int client_open(int argc, char *argv[], struct client_task **ct_ptr,
  52                 int *loglevel, struct btr_node *parent, struct btr_node *child);