IABSD.fr/src/usr.bin/ssh/session.h

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• Author : djm
  Date : 2018-10-02 12:40:07
  Hash : ad3fdf1f
  Message : Add server support for signalling sessions via the SSH channel/ session protocol. Signalling is only supported to sesssions that are not subsystems and were not started with a forced command. Long requested in bz#1424 Based on a patch from markus@ and reworked by dtucker@; ok markus@ dtucker@

• usr.bin/ssh/session.h

• /* $OpenBSD: session.h,v 1.36 2018/10/02 12:40:07 djm Exp $ */
  
  /*
   * Copyright (c) 2000, 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.
   */
  #ifndef SESSION_H
  #define SESSION_H
  
  #define TTYSZ 64
  typedef struct Session Session;
  struct Session {
  	int	used;
  	int	self;
  	int	next_unused;
  	struct passwd *pw;
  	Authctxt *authctxt;
  	pid_t	pid;
  	int	forced;
  
  	/* tty */
  	char	*term;
  	int	ptyfd, ttyfd, ptymaster;
  	u_int	row, col, xpixel, ypixel;
  	char	tty[TTYSZ];
  
  	/* X11 */
  	u_int	display_number;
  	char	*display;
  	u_int	screen;
  	char	*auth_display;
  	char	*auth_proto;
  	char	*auth_data;
  	int	single_connection;
  
  	int	chanid;
  	int	*x11_chanids;
  	int	is_subsystem;
  	char	*subsys;
  	u_int	num_env;
  	struct {
  		char	*name;
  		char	*val;
  	} *env;
  };
  
  void	 do_authenticated(struct ssh *, Authctxt *);
  void	 do_cleanup(struct ssh *, Authctxt *);
  
  int	 session_open(Authctxt *, int);
  void	 session_unused(int);
  int	 session_input_channel_req(struct ssh *, Channel *, const char *);
  void	 session_close_by_pid(struct ssh *ssh, pid_t, int);
  void	 session_close_by_channel(struct ssh *, int, void *);
  void	 session_destroy_all(struct ssh *, void (*)(Session *));
  void	 session_pty_cleanup2(Session *);
  
  Session	*session_new(void);
  Session	*session_by_tty(char *);
  void	 session_close(struct ssh *, Session *);
  void	 do_setusercontext(struct passwd *);
  
  const char	*session_get_remote_name_or_ip(struct ssh *, u_int, int);
  
  #endif