crypto/openssh/session.h

   1 /* $OpenBSD: session.h,v 1.35 2017/09/12 06:32:07 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
  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         int     chanid;
  55         int     *x11_chanids;
  56         int     is_subsystem;
  57         char    *subsys;
  58         u_int   num_env;
  59         struct {
  60                 char    *name;
  61                 char    *val;
  62         } *env;
  63 };
  64
  65 void     do_authenticated(struct ssh *, Authctxt *);
  66 void     do_cleanup(struct ssh *, Authctxt *);
  67
  68 int      session_open(Authctxt *, int);
  69 void     session_unused(int);
  70 int      session_input_channel_req(struct ssh *, Channel *, const char *);
  71 void     session_close_by_pid(struct ssh *ssh, pid_t, int);
  72 void     session_close_by_channel(struct ssh *, int, void *);
  73 void     session_destroy_all(struct ssh *, void (*)(Session *));
  74 void     session_pty_cleanup2(Session *);
  75
  76 Session *session_new(void);
  77 Session *session_by_tty(char *);
  78 void     session_close(struct ssh *, Session *);
  79 void     do_setusercontext(struct passwd *);
  80
  81 const char      *session_get_remote_name_or_ip(struct ssh *, u_int, int);
  82
  83 #endif