xref: /freebsd/crypto/openssh/clientloop.h (revision f0a75d274af375d15b97b830966b99a02b7db911)
1 /* $OpenBSD: clientloop.h,v 1.16 2006/03/25 22:22:42 djm Exp $ */
2 
3 /*
4  * Author: Tatu Ylonen <ylo@cs.hut.fi>
5  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
6  *                    All rights reserved
7  *
8  * As far as I am concerned, the code I have written for this software
9  * can be used freely for any purpose.  Any derived versions of this
10  * software must be clearly marked as such, and if the derived work is
11  * incompatible with the protocol description in the RFC file, it must be
12  * called by a name other than "ssh" or "Secure Shell".
13  */
14 /*
15  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
16  *
17  * Redistribution and use in source and binary forms, with or without
18  * modification, are permitted provided that the following conditions
19  * are met:
20  * 1. Redistributions of source code must retain the above copyright
21  *    notice, this list of conditions and the following disclaimer.
22  * 2. Redistributions in binary form must reproduce the above copyright
23  *    notice, this list of conditions and the following disclaimer in the
24  *    documentation and/or other materials provided with the distribution.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
27  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
28  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
29  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
30  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
31  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
35  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36  */
37 
38 #include <termios.h>
39 
40 /* Client side main loop for the interactive session. */
41 int	 client_loop(int, int, int);
42 void	 client_x11_get_proto(const char *, const char *, u_int,
43 	    char **, char **);
44 void	 client_global_request_reply_fwd(int, u_int32_t, void *);
45 void	 client_session2_setup(int, int, int, const char *, struct termios *,
46 	    int, Buffer *, char **, dispatch_fn *);
47 
48 /* Multiplexing protocol version */
49 #define SSHMUX_VER			1
50 
51 /* Multiplexing control protocol flags */
52 #define SSHMUX_COMMAND_OPEN		1	/* Open new connection */
53 #define SSHMUX_COMMAND_ALIVE_CHECK	2	/* Check master is alive */
54 #define SSHMUX_COMMAND_TERMINATE	3	/* Ask master to exit */
55 
56 #define SSHMUX_FLAG_TTY			(1)	/* Request tty on open */
57 #define SSHMUX_FLAG_SUBSYS		(1<<1)	/* Subsystem request on open */
58 #define SSHMUX_FLAG_X11_FWD		(1<<2)	/* Request X11 forwarding */
59 #define SSHMUX_FLAG_AGENT_FWD		(1<<3)	/* Request agent forwarding */
60