mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-12-24 02:42:25 +00:00
5771ed7d1b
[clientloop.c clientloop.h ssh.c]
Use new channel status confirmation callback system to properly deal
with "important" channel requests that fail, in particular command exec,
shell and subsystem requests. Previously we would optimistically assume
that the requests would always succeed, which could cause hangs if they
did not (e.g. when the server runs out of fds) or were unimplemented by
the server (bz #1384)
Also, properly report failing multiplex channel requests via the mux
client stderr (subject to LogLevel in the mux master) - better than
silently failing.
most bits ok markus@ (as part of a larger diff)
61 lines
2.8 KiB
C
61 lines
2.8 KiB
C
/* $OpenBSD: clientloop.h,v 1.18 2008/05/08 13:06:11 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>
|
|
|
|
/* Client side main loop for the interactive session. */
|
|
int client_loop(int, int, int);
|
|
void client_x11_get_proto(const char *, const char *, u_int,
|
|
char **, char **);
|
|
void client_global_request_reply_fwd(int, u_int32_t, void *);
|
|
void client_session2_setup(int, int, int, const char *, struct termios *,
|
|
int, Buffer *, char **);
|
|
int client_request_tun_fwd(int, int, int);
|
|
|
|
/* Multiplexing protocol version */
|
|
#define SSHMUX_VER 1
|
|
|
|
/* 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_FLAG_TTY (1) /* Request tty on open */
|
|
#define SSHMUX_FLAG_SUBSYS (1<<1) /* Subsystem request on open */
|
|
#define SSHMUX_FLAG_X11_FWD (1<<2) /* Request X11 forwarding */
|
|
#define SSHMUX_FLAG_AGENT_FWD (1<<3) /* Request agent forwarding */
|