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session.h revision 1.5 
      1 /*	$NetBSD: session.h,v 1.5 2016/08/02 13:45:12 christos Exp $	*/
      2 /* $OpenBSD: session.h,v 1.32 2016/03/07 19:02:43 djm Exp $ */
      3 
      4 /*
      5  * Copyright (c) 2000, 2001 Markus Friedl.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 #ifndef SESSION_H
     28 #define SESSION_H
     29 
     30 #include <tzfile.h>
     31 
     32 #define TTYSZ 64
     33 typedef struct Session Session;
     34 struct Session {
     35 	int	used;
     36 	int	self;
     37 	int	next_unused;
     38 	struct passwd *pw;
     39 	Authctxt *authctxt;
     40 	pid_t	pid;
     41 
     42 	/* tty */
     43 	char	*term;
     44 	int	ptyfd, ttyfd, ptymaster;
     45 	u_int	row, col, xpixel, ypixel;
     46 	char	tty[TTYSZ];
     47 
     48 	/* X11 */
     49 	u_int	display_number;
     50 	char	*display;
     51 	u_int	screen;
     52 	char	*auth_display;
     53 	char	*auth_proto;
     54 	char	*auth_data;
     55 	int	single_connection;
     56 
     57 	/* proto 2 */
     58 	int	chanid;
     59 	int	*x11_chanids;
     60 	int	is_subsystem;
     61 	char	*subsys;
     62 	u_int	num_env;
     63 	struct {
     64 		char	*name;
     65 		char	*val;
     66 	} *env;
     67 };
     68 
     69 void	 do_authenticated(Authctxt *);
     70 void	 do_cleanup(Authctxt *);
     71 
     72 int	 session_open(Authctxt *, int);
     73 void	 session_unused(int);
     74 int	 session_input_channel_req(Channel *, const char *);
     75 void	 session_close_by_pid(pid_t, int);
     76 void	 session_close_by_channel(int, void *);
     77 void	 session_destroy_all(void (*)(Session *));
     78 void	 session_pty_cleanup2(Session *);
     79 
     80 Session	*session_new(void);
     81 Session	*session_by_tty(char *);
     82 void	 session_close(Session *);
     83 void	 do_setusercontext(struct passwd *);
     84 void	 child_set_env(char ***envp, u_int *envsizep, const char *name,
     85 		       const char *value);
     86 
     87 const char	*session_get_remote_name_or_ip(struct ssh *, u_int, int);
     88 
     89 #endif
     90