NIDE/NIDED

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Contents

Introduction

NIDE/NIDED is a client/server application that emulates virtual input device through the network. With that you may transform your freerunner in a virtual keyboard/mouse to control a remote Linux Box and do other nice things. It's similar to Remoko, but uses a different tecnique.

How it works

NIDE is the client part of the architecture, it's a GUI that show you the virtual device (keyboard, mouse, etc), and recognizes your input actions:

  • press a gui button
  • press an hardware button (AUX, Power)
  • slide your finger on display
  • move the freerunner (accelerometers) TBD

If the input action matches some rules in the configuration file it:

  • simulate trough nided a mouse move/click or key press/release on the remote linux box
  • requests nided to start a process on the remote linux box
  • start a local process
  • switch to subpages of virtual device.

The NIDED daemon create a virtual keyboard/mouse registering a new device in "uinput", reads command sent by NIDE, translates and inijects them in the system or execute remote applications.

Pro

  • it works with every network, bt, wifi, usb and so on
  • it may request remote command execution (startup application, halt, reboot, etc.)
  • it's xml configurable and stylesheet themable, it's easy to create customized virtual devices
  • you may create different pages in the same config file and may switch between them
  • every page may have two layouts (portrait, landscape), it auto switches beetween them if the system display is rotated
  • it may use AUX/POWER button to trigger action (simulate button press, request remote command execution, switch between pages and so on)
  • the gui recognizes simple sliding over a user configurable matrix, with a 3*3 matrix you are able to use 72 different sliding
  • there is no need to "initiate" action on the controlled host (as in Remoko) it needs only nided started
  • it automatically restore the last session at startup, so if you use it to control always the same host you are ready with only one click.

Cons

  • it requires nided to be installed on the controlled host, that need linux 2.6 and uinput kernel module
  • it uses QT library, and that are not provided in OM2009/SHR, you have to build them yourself or take them from the angstrom or my persronal feed
  • no authentication is implemented, a stupid and rude security ip access list is used, so you have to use it in highly secure networks
  • it may be buggy in some part and may need bug fixing/code restyling

Installation

n.b. nide/nidec is in prealpha state

How to create new virtual devices

Create a file in /usr/share/nide/devices with extension ".cfg". It's an xml file, the following example should be autoexplaining:

<xml>
 <page name="default">
  <portrait vsizex="5" vsizey="5" vslidex="2" vslidey="2" stylesheet="/usr/share/nide/styles/freerunnert.style" iconpath="/usr/share/nide/icons" >
   <button code="1"   x="0"  y="0" width="3" height="3" icon="application-exit.png"/>
   <button code="10" x="0" y="0" width="2" height="1" text="Esc"/>
   <button code="2"   x="1"  y="1" width="1" height="1" text="1" stext="!" atext="¹" satext="¡"/>
   <button x="0" y="6" text="remote
commands" width="3" height="3" gotopage="commands"/>
   <mouse x="3" y="0" width="3" height="4"/>
   <key keycode="177" code="28"/>
   <slide x1="0" y1="0" x2="1" y2="1" localcommand="shutdown -r now"/>
  </portrait>
 </page>
 <page name="commands">
  <portrait vsizex="1" vsizey="5">
   <button gotopage="default" x="0" y="0" text="return"/>
   <button x="0" y="3" text="reboot" command="reboot" gotopage="default"/>
   <button x="0" y="4" text="halt" command="halt" gotopage="default"/>
</portrait>
</page>

code is the linux input key code, you can find it in /usr/include/linux/input.h, stext, atext, and satext are shift text, alt text, and shift alt texts.

To mark a key as a modifier add the

modifier="x"

attribute to the button element where x is:

  • 1 - left shift
  • 2 - right alt (altgr)
  • 4 - right shift
  • 8 - left alt
  • 16 - leftctrl
  • 32 - leftmeta
  • 64 - rightctrl
  • 128 - rightmeta

Mouse create a virtual mouse, use the right key codes to create button left, right and middle, key is hardware buttons, on the freerunner you may use aux and power.

Slide add a sliding gestures from (x1,y1) to (x2,y2), these coordinates ranges in 0<->vslidex-1, 0<->vslidey-1

Personal tools

Introduction

NIDE/NIDED is a client/server application that emulates virtual input device through the network. With that you may transform your freerunner in a virtual keyboard/mouse to control a remote Linux Box and do other nice things. It's similar to Remoko, but uses a different tecnique.

How it works

NIDE is the client part of the architecture, it's a GUI that show you the virtual device (keyboard, mouse, etc), and recognizes your input actions:

  • press a gui button
  • press an hardware button (AUX, Power)
  • slide your finger on display
  • move the freerunner (accelerometers) TBD

If the input action matches some rules in the configuration file it:

  • simulate trough nided a mouse move/click or key press/release on the remote linux box
  • requests nided to start a process on the remote linux box
  • start a local process
  • switch to subpages of virtual device.

The NIDED daemon create a virtual keyboard/mouse registering a new device in "uinput", reads command sent by NIDE, translates and inijects them in the system or execute remote applications.

Pro

  • it works with every network, bt, wifi, usb and so on
  • it may request remote command execution (startup application, halt, reboot, etc.)
  • it's xml configurable and stylesheet themable, it's easy to create customized virtual devices
  • you may create different pages in the same config file and may switch between them
  • every page may have two layouts (portrait, landscape), it auto switches beetween them if the system display is rotated
  • it may use AUX/POWER button to trigger action (simulate button press, request remote command execution, switch between pages and so on)
  • the gui recognizes simple sliding over a user configurable matrix, with a 3*3 matrix you are able to use 72 different sliding
  • there is no need to "initiate" action on the controlled host (as in Remoko) it needs only nided started
  • it automatically restore the last session at startup, so if you use it to control always the same host you are ready with only one click.

Cons

  • it requires nided to be installed on the controlled host, that need linux 2.6 and uinput kernel module
  • it uses QT library, and that are not provided in OM2009/SHR, you have to build them yourself or take them from the angstrom or my persronal feed
  • no authentication is implemented, a stupid and rude security ip access list is used, so you have to use it in highly secure networks
  • it may be buggy in some part and may need bug fixing/code restyling

Installation

n.b. nide/nidec is in prealpha state

How to create new virtual devices

Create a file in /usr/share/nide/devices with extension ".cfg". It's an xml file, the following example should be autoexplaining:

<xml>
 <page name="default">
  <portrait vsizex="5" vsizey="5" vslidex="2" vslidey="2" stylesheet="/usr/share/nide/styles/freerunnert.style" iconpath="/usr/share/nide/icons" >
   <button code="1"   x="0"  y="0" width="3" height="3" icon="application-exit.png"/>
   <button code="10" x="0" y="0" width="2" height="1" text="Esc"/>
   <button code="2"   x="1"  y="1" width="1" height="1" text="1" stext="!" atext="¹" satext="¡"/>
   <button x="0" y="6" text="remote
commands" width="3" height="3" gotopage="commands"/>
   <mouse x="3" y="0" width="3" height="4"/>
   <key keycode="177" code="28"/>
   <slide x1="0" y1="0" x2="1" y2="1" localcommand="shutdown -r now"/>
  </portrait>
 </page>
 <page name="commands">
  <portrait vsizex="1" vsizey="5">
   <button gotopage="default" x="0" y="0" text="return"/>
   <button x="0" y="3" text="reboot" command="reboot" gotopage="default"/>
   <button x="0" y="4" text="halt" command="halt" gotopage="default"/>
</portrait>
</page>

code is the linux input key code, you can find it in /usr/include/linux/input.h, stext, atext, and satext are shift text, alt text, and shift alt texts.

To mark a key as a modifier add the

modifier="x"

attribute to the button element where x is:

  • 1 - left shift
  • 2 - right alt (altgr)
  • 4 - right shift
  • 8 - left alt
  • 16 - leftctrl
  • 32 - leftmeta
  • 64 - rightctrl
  • 128 - rightmeta

Mouse create a virtual mouse, use the right key codes to create button left, right and middle, key is hardware buttons, on the freerunner you may use aux and power.

Slide add a sliding gestures from (x1,y1) to (x2,y2), these coordinates ranges in 0<->vslidex-1, 0<->vslidey-1