crypto/external/bsd/openssh/dist/clientloop.h

   1 /*      $NetBSD$        */
   2 /* $OpenBSD: clientloop.h,v 1.22 2008/06/12 15:19:17 djm Exp $ */
   3
   4 /*
   5  * Author: Tatu Ylonen <ylo@cs.hut.fi>
   6  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
   7  *                    All rights reserved
   8  *
   9  * As far as I am concerned, the code I have written for this software
  10  * can be used freely for any purpose.  Any derived versions of this
  11  * software must be clearly marked as such, and if the derived work is
  12  * incompatible with the protocol description in the RFC file, it must be
  13  * called by a name other than "ssh" or "Secure Shell".
  14  */
  15 /*
  16  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms, with or without
  19  * modification, are permitted provided that the following conditions
  20  * are met:
  21  * 1. Redistributions of source code must retain the above copyright
  22  *    notice, this list of conditions and the following disclaimer.
  23  * 2. Redistributions in binary form must reproduce the above copyright
  24  *    notice, this list of conditions and the following disclaimer in the
  25  *    documentation and/or other materials provided with the distribution.
  26  *
  27  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  28  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  29  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  30  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  31  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  32  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  33  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  34  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  36  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37  */
  38
  39 #include <termios.h>
  40
  41 /* Client side main loop for the interactive session. */
  42 int      client_loop(int, int, int);
  43 void     client_x11_get_proto(const char *, const char *, u_int,
  44             char **, char **);
  45 void     client_global_request_reply_fwd(int, u_int32_t, void *);
  46 void     client_session2_setup(int, int, int, const char *, struct termios *,
  47             int, Buffer *, char **);
  48 int      client_request_tun_fwd(int, int, int);
  49
  50 /* Escape filter for protocol 2 sessions */
  51 void    *client_new_escape_filter_ctx(int);
  52 void     client_filter_cleanup(int, void *);
  53 int      client_simple_escape_filter(Channel *, char *, int);
  54
  55 /* Global request confirmation callbacks */
  56 typedef void global_confirm_cb(int, u_int32_t seq, void *);
  57 void     client_register_global_confirm(global_confirm_cb *, void *);
  58
  59 /* Multiplexing protocol version */
  60 #define SSHMUX_VER                      2
  61
  62 /* Multiplexing control protocol flags */
  63 #define SSHMUX_COMMAND_OPEN             1       /* Open new connection */
  64 #define SSHMUX_COMMAND_ALIVE_CHECK      2       /* Check master is alive */
  65 #define SSHMUX_COMMAND_TERMINATE        3       /* Ask master to exit */
  66
  67 #define SSHMUX_FLAG_TTY                 (1)     /* Request tty on open */
  68 #define SSHMUX_FLAG_SUBSYS              (1<<1)  /* Subsystem request on open */
  69 #define SSHMUX_FLAG_X11_FWD             (1<<2)  /* Request X11 forwarding */
  70 #define SSHMUX_FLAG_AGENT_FWD           (1<<3)  /* Request agent forwarding */
  71
  72 void    muxserver_listen(void);
  73 int     muxserver_accept_control(void);
  74 void    muxclient(const char *);