chansession.h

   1 /*
   2  * Dropbear - a SSH2 server
   3  *
   4  * Copyright (c) 2002,2003 Matt Johnston
   5  * All rights reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE. */
  24
  25 #ifndef _CHANSESSION_H_
  26 #define _CHANSESSION_H_
  27
  28 #include "loginrec.h"
  29 #include "channel.h"
  30 #include "listener.h"
  31
  32 struct exitinfo {
  33
  34         int exitpid; /* -1 if not exited */
  35         int exitstatus;
  36         int exitsignal;
  37         int exitcore;
  38 };
  39
  40 struct ChanSess {
  41
  42         unsigned char * cmd; /* command to exec */
  43         pid_t pid; /* child process pid */
  44
  45         /* pty details */
  46         int master; /* the master terminal fd*/
  47         int slave;
  48         unsigned char * tty;
  49         unsigned char * term;
  50
  51         /* exit details */
  52         struct exitinfo exit;
  53
  54         /* Used to set $SSH_CONNECTION in the child session.
  55         Is only set temporarily before forking */
  56         char *connection_string;
  57
  58 #ifndef DISABLE_X11FWD
  59         struct Listener * x11listener;
  60         int x11port;
  61         char * x11authprot;
  62         char * x11authcookie;
  63         unsigned int x11screennum;
  64         unsigned char x11singleconn;
  65 #endif
  66
  67 #ifdef ENABLE_SVR_AGENTFWD
  68         struct Listener * agentlistener;
  69         char * agentfile;
  70         char * agentdir;
  71 #endif
  72 };
  73
  74 struct ChildPid {
  75         pid_t pid;
  76         struct ChanSess * chansess;
  77 };
  78
  79
  80 void addnewvar(const char* param, const char* var);
  81
  82 void cli_send_chansess_request();
  83 void cli_tty_cleanup();
  84 void cli_chansess_winchange();
  85 #ifdef ENABLE_CLI_NETCAT
  86 void cli_send_netcat_request();
  87 #endif
  88 void cli_start_send_channel_request(struct Channel *channel, unsigned char *type);
  89
  90 void svr_chansessinitialise();
  91 extern const struct ChanType svrchansess;
  92
  93 struct SigMap {
  94         int signal;
  95         char* name;
  96 };
  97
  98 extern const struct SigMap signames[];
  99
 100 #endif /* _CHANSESSION_H_ */