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session.h revision 1.1.1.7 
      1 /* $OpenBSD: session.h,v 1.36 2018/10/02 12:40:07 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
     30 typedef struct Session Session;
     31 struct Session {
     32 	int	used;
     33 	int	self;
     34 	int	next_unused;
     35 	struct passwd *pw;
     36 	Authctxt *authctxt;
     37 	pid_t	pid;
     38 	int	forced;
     39 
     40 	/* tty */
     41 	char	*term;
     42 	int	ptyfd, ttyfd, ptymaster;
     43 	u_int	row, col, xpixel, ypixel;
     44 	char	tty[TTYSZ];
     45 
     46 	/* X11 */
     47 	u_int	display_number;
     48 	char	*display;
     49 	u_int	screen;
     50 	char	*auth_display;
     51 	char	*auth_proto;
     52 	char	*auth_data;
     53 	int	single_connection;
     54 
     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 
     66 void	 do_authenticated(struct ssh *, Authctxt *);
     67 void	 do_cleanup(struct ssh *, Authctxt *);
     68 
     69 int	 session_open(Authctxt *, int);
     70 void	 session_unused(int);
     71 int	 session_input_channel_req(struct ssh *, Channel *, const char *);
     72 void	 session_close_by_pid(struct ssh *ssh, pid_t, int);
     73 void	 session_close_by_channel(struct ssh *, int, void *);
     74 void	 session_destroy_all(struct ssh *, void (*)(Session *));
     75 void	 session_pty_cleanup2(Session *);
     76 
     77 Session	*session_new(void);
     78 Session	*session_by_tty(char *);
     79 void	 session_close(struct ssh *, Session *);
     80 void	 do_setusercontext(struct passwd *);
     81 
     82 const char	*session_get_remote_name_or_ip(struct ssh *, u_int, int);
     83 
     84 #endif
     85