session.h revision 323129 
1/* $OpenBSD: session.h,v 1.32 2016/03/07 19:02:43 djm Exp $ */
2
3/*
4 * Copyright (c) 2000, 2001 Markus Friedl.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26#ifndef SESSION_H
27#define SESSION_H
28
29#define TTYSZ 64
30typedef struct Session Session;
31struct Session {
32	int	used;
33	int	self;
34	int	next_unused;
35	struct passwd *pw;
36	Authctxt *authctxt;
37	pid_t	pid;
38
39	/* tty */
40	char	*term;
41	int	ptyfd, ttyfd, ptymaster;
42	u_int	row, col, xpixel, ypixel;
43	char	tty[TTYSZ];
44
45	/* X11 */
46	u_int	display_number;
47	char	*display;
48	u_int	screen;
49	char	*auth_display;
50	char	*auth_proto;
51	char	*auth_data;
52	int	single_connection;
53
54	/* proto 2 */
55	int	chanid;
56	int	*x11_chanids;
57	int	is_subsystem;
58	char	*subsys;
59	u_int	num_env;
60	struct {
61		char	*name;
62		char	*val;
63	} *env;
64};
65
66void	 do_authenticated(Authctxt *);
67void	 do_cleanup(Authctxt *);
68
69int	 session_open(Authctxt *, int);
70void	 session_unused(int);
71int	 session_input_channel_req(Channel *, const char *);
72void	 session_close_by_pid(pid_t, int);
73void	 session_close_by_channel(int, void *);
74void	 session_destroy_all(void (*)(Session *));
75void	 session_pty_cleanup2(Session *);
76
77Session	*session_new(void);
78Session	*session_by_tty(char *);
79void	 session_close(Session *);
80void	 do_setusercontext(struct passwd *);
81void	 child_set_env(char ***envp, u_int *envsizep, const char *name,
82		       const char *value);
83
84const char	*session_get_remote_name_or_ip(struct ssh *, u_int, int);
85
86#endif
87