/* $OpenBSD: clientloop.h,v 1.37 2020/04/03 02:40:32 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
*
* As far as I am concerned, the code I have written for this software
* can be used freely for any purpose. Any derived versions of this
* software must be clearly marked as such, and if the derived work is
* incompatible with the protocol description in the RFC file, it must be
* called by a name other than "ssh" or "Secure Shell".
*/
/*
* Copyright (c) 2001 Markus Friedl. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <termios.h>
struct ssh;
/* Client side main loop for the interactive session. */
int client_loop(struct ssh *, int, int, int);
int client_x11_get_proto(struct ssh *, const char *, const char *,
u_int, u_int, char **, char **);
void client_global_request_reply_fwd(int, u_int32_t, void *);
void client_session2_setup(struct ssh *, int, int, int,
const char *, struct termios *, int, struct sshbuf *, char **);
char *client_request_tun_fwd(struct ssh *, int, int, int,
channel_open_fn *, void *);
void client_stop_mux(void);
/* Escape filter for protocol 2 sessions */
void *client_new_escape_filter_ctx(int);
void client_filter_cleanup(struct ssh *, int, void *);
int client_simple_escape_filter(struct ssh *, Channel *, char *, int);
/* Global request confirmation callbacks */
typedef void global_confirm_cb(struct ssh *, int, u_int32_t, void *);
void client_register_global_confirm(global_confirm_cb *, void *);
/* Channel request confirmation callbacks */
enum confirm_action { CONFIRM_WARN = 0, CONFIRM_CLOSE, CONFIRM_TTY };
void client_expect_confirm(struct ssh *, int, const char *,
enum confirm_action);
/* Multiplexing protocol version */
#define SSHMUX_VER 4
/* Multiplexing control protocol flags */
#define SSHMUX_COMMAND_OPEN 1 /* Open new connection */
#define SSHMUX_COMMAND_ALIVE_CHECK 2 /* Check master is alive */
#define SSHMUX_COMMAND_TERMINATE 3 /* Ask master to exit */
#define SSHMUX_COMMAND_STDIO_FWD 4 /* Open stdio fwd (ssh -W) */
#define SSHMUX_COMMAND_FORWARD 5 /* Forward only, no command */
#define SSHMUX_COMMAND_STOP 6 /* Disable mux but not conn */
#define SSHMUX_COMMAND_CANCEL_FWD 7 /* Cancel forwarding(s) */
#define SSHMUX_COMMAND_PROXY 8 /* Open new connection */
void muxserver_listen(struct ssh *);
int muxclient(const char *);
void mux_exit_message(struct ssh *, Channel *, int);
void mux_tty_alloc_failed(struct ssh *ssh, Channel *);
