clientloop.h revision 226046
1170809Sdelphij/* $OpenBSD: clientloop.h,v 1.28 2011/06/22 22:08:42 djm Exp $ */ 2170809Sdelphij 3171801Sdelphij/* 4170809Sdelphij * Author: Tatu Ylonen <ylo@cs.hut.fi> 5171801Sdelphij * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 6170809Sdelphij * All rights reserved 7170809Sdelphij * 8170809Sdelphij * As far as I am concerned, the code I have written for this software 9170809Sdelphij * can be used freely for any purpose. Any derived versions of this 10170809Sdelphij * software must be clearly marked as such, and if the derived work is 11170809Sdelphij * incompatible with the protocol description in the RFC file, it must be 12170809Sdelphij * called by a name other than "ssh" or "Secure Shell". 13170809Sdelphij */ 14170809Sdelphij/* 15170809Sdelphij * Copyright (c) 2001 Markus Friedl. All rights reserved. 16170809Sdelphij * 17170809Sdelphij * Redistribution and use in source and binary forms, with or without 18170809Sdelphij * modification, are permitted provided that the following conditions 19170809Sdelphij * are met: 20170809Sdelphij * 1. Redistributions of source code must retain the above copyright 21170809Sdelphij * notice, this list of conditions and the following disclaimer. 22170809Sdelphij * 2. Redistributions in binary form must reproduce the above copyright 23170809Sdelphij * notice, this list of conditions and the following disclaimer in the 24170809Sdelphij * documentation and/or other materials provided with the distribution. 25170809Sdelphij * 26170809Sdelphij * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 27170809Sdelphij * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28170809Sdelphij * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29170809Sdelphij * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 30170809Sdelphij * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 31170809Sdelphij * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32170809Sdelphij * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33170809Sdelphij * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34170809Sdelphij * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35170809Sdelphij * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36170809Sdelphij */ 37170809Sdelphij 38170809Sdelphij#include <termios.h> 39170809Sdelphij 40170809Sdelphij/* Client side main loop for the interactive session. */ 41170809Sdelphijint client_loop(int, int, int); 42170809Sdelphijvoid client_x11_get_proto(const char *, const char *, u_int, u_int, 43170809Sdelphij char **, char **); 44170809Sdelphijvoid client_global_request_reply_fwd(int, u_int32_t, void *); 45170809Sdelphijvoid client_session2_setup(int, int, int, const char *, struct termios *, 46170809Sdelphij int, Buffer *, char **); 47170809Sdelphijint client_request_tun_fwd(int, int, int); 48170809Sdelphijvoid client_stop_mux(void); 49170809Sdelphij 50170809Sdelphij/* Escape filter for protocol 2 sessions */ 51170809Sdelphijvoid *client_new_escape_filter_ctx(int); 52170809Sdelphijvoid client_filter_cleanup(int, void *); 53170809Sdelphijint client_simple_escape_filter(Channel *, char *, int); 54170809Sdelphij 55170809Sdelphij/* Global request confirmation callbacks */ 56170809Sdelphijtypedef void global_confirm_cb(int, u_int32_t seq, void *); 57170809Sdelphijvoid client_register_global_confirm(global_confirm_cb *, void *); 58170809Sdelphij 59170809Sdelphij/* Channel request confirmation callbacks */ 60170809Sdelphijenum confirm_action { CONFIRM_WARN = 0, CONFIRM_CLOSE, CONFIRM_TTY }; 61170809Sdelphijvoid client_expect_confirm(int, const char *, enum confirm_action); 62170809Sdelphij 63170809Sdelphij/* Multiplexing protocol version */ 64170809Sdelphij#define SSHMUX_VER 4 65170809Sdelphij 66170809Sdelphij/* Multiplexing control protocol flags */ 67170809Sdelphij#define SSHMUX_COMMAND_OPEN 1 /* Open new connection */ 68170809Sdelphij#define SSHMUX_COMMAND_ALIVE_CHECK 2 /* Check master is alive */ 69170809Sdelphij#define SSHMUX_COMMAND_TERMINATE 3 /* Ask master to exit */ 70170809Sdelphij#define SSHMUX_COMMAND_STDIO_FWD 4 /* Open stdio fwd (ssh -W) */ 71170809Sdelphij#define SSHMUX_COMMAND_FORWARD 5 /* Forward only, no command */ 72170809Sdelphij#define SSHMUX_COMMAND_STOP 6 /* Disable mux but not conn */ 73170809Sdelphij 74170809Sdelphijvoid muxserver_listen(void); 75170809Sdelphijvoid muxclient(const char *); 76170809Sdelphijvoid mux_exit_message(Channel *, int); 77170809Sdelphijvoid mux_tty_alloc_failed(Channel *); 78170809Sdelphij 79