MANAS

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MANAS
The soul of mobile

• Anwar M. Haneef
• Multimedia Networks Laboratory
• University of Massachusetts, Amherst

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Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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Agenda

• Primer
• Mobile Agents
• Restriction on mobile devices
• Why Mobile Agents
• Jini Technology Overview
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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Agenda

• Primer
• Mobile Agents
• Restriction on mobile devices
• Why Mobile Agents
• Jini Technology Overview
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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Primer Agents

• Software Agent An independently executing
  program able to handle autonomously (i.e.,
  without direct input at run time from a human)
  the selections of actions when expected or
  limited unexpected events occur

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Primer Agents

• An agent by definition is anything that can be
  viewed as perceiving its environment through
  sensors and acting upon that environment through
  effectors.

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Primer Agents

• A human analogy would be a human being (agent)
  with eyes, ears and other organs (sensors) and
  hands, legs, mouth (effectors)

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Primer Agents

• Havent used an agent ?
• Remember this guy ?

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Primer Mobile Agents

• The additional feature that mobile agents possess
  is a navigational model

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Agenda

• Primer
• Mobile Agents
• Restriction on mobile devices
• Why Mobile Agents
• Jini Technology Overview
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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Restrictions on Mobile Devices

• Low Bandwidth
• Low Computational Power
• Lower Memory Capacity
• Computational Power at the expense of battery
  power

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Agenda

• Primer
• Mobile Agents
• Restriction on mobile devices
• Why Mobile Agents
• Jini Technology Overview
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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Why Mobile Agents ?

• Bandwidth Savings
• Agent may be downloaded and run locally
• Code generally smaller than data
• Processing may be done at server
• Code may be downloaded on the fly
• Scalable
• Upgrades may be received instantly
• No need for local storage

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Agenda

• Primer
• Mobile Agents
• Restriction on mobile devices
• Why Mobile Agents
• Jini Technology Overview
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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Jini Framework

• Mobile Agent Framework from Sun Microsystems

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The Jini Mobile Agent Framework

• Written completely in Java
• Provides a set of interfaces which allow easy
  deployment of mobile agents
• The Jini architecture provides mechanisms for
  machines or programs to enter into a federation
  where each machine or program offers resources to
  other members of the federation and uses
  resources as needed.

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Why Jini Technology

• New devices Where is that .dll, anyway?
• Differing platforms
• Nomadic devices that come-and-go
• Adding a device onto the network should be as
  easy as plugging a telephone into the wall
• All it takes is the right infrastructure
• Jini is that infrastructure

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How do we solve this problem ?

• One humongous networked operating system that
  knows about all devices and services
• or...
• A federation of devices that can discover and
  interact with each other
• Jini supports the federated approach and enables
  spontaneous networking

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Java Jini

• A Jini system extends the Java
• application environment from a single
• virtual machine to a network of
• machines

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Components of Jini Network

• Device Providing some service (Service Provider)
• Client requesting service
• Lookup Server (sort of like a bulletin board)

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Jini Architecture
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Human Analogy

• Jini Device A Janitor Bob
• 3x5 card with his name and job description
  (janitor)
• 3x5 card with instructions on how to contact him
  and request a janitorial service
• Lookup Service June, our secretary with a box
  containing 3x5 cards

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Human Analogy

• Bob yells Is a secretary out there? Im Bob,
  the new janitor!
• June yells back Im behind the counter on the
  third floor, you dummy !

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Human Analogy

• Bob walks up to June on the third floor
• Bob places his 3x5 card in the box on Junes
  counter

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Human Analogy

• . Prof. Ganz needs a janitor.
• Prof. Ganz to June I need a janitor to clean up
  the mess Dan made of my room
• June looks in the box and finds a card that says
  Bob is a janitor
• June passes the contact info on the card onto
  Prof. Ganz and tells her what to tell him.

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• Easy enough ?

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Actual Working

• Let me run through how all this works in a
  practical scenario

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The Promise of Jini

• Anyone
• Anywhere
• Anytime
• On Anything

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Getting back to our Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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Motivation

• The future is mobile !
• Small portable nomadic devices rule !
• You will have ubiquitous access to the Internet
• Need for secure access for these devices
• Need for authentication of these hard to locate
  and manage devices
• Need to set local policies for these roaming
  devices

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The future is mobile
get moving !!
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Getting back to our Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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MANAS - The Future of Nomadic Access

• MANAS
• Mobile Agent Network Access Service
• MANAS
• In my mother tongue Malayalam
• mind heart soul
• The soul of nomadic access

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MANAS - The Future of Nomadic Access

• Strives to solve the problem of managing nomadic
  devices accessing local network resources
• Looks at the problem, taking care of the issues
  faced by mobile devices

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Getting back to our Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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MANAS The Big Picture

• A mobile device wishing to access network
  resources would need a MANAS client framework
  implanted in it
• When it comes within range of a network service
  provider, it locates it and requests network
  access
• Once the device is authenticated, access is
  provided

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MANAS The Big Picture

• The mobile device does not need to have
  complicated software installed
• No major computation done on the device
• Local policies of the network the device is
  currently in may be implemented
• Security QoS may be implemented as per the
  authentication level passed by the device

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Getting back to our Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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MANAS - Backstage

• How does all this happen ?
• The Keyword is Jini !

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Request for network access
Network Access Point/ Base Station
Mobile User
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Getting back to our Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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MANAS - Applications

• Mobile user in an airport may pay for Internet
  access via his/her credit card
• Military application where each network access
  point may have its own security policy. Device
  needs to adhere to local policy
• Anywhere local policies may be needed to be
  provided for nomadic network users

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Getting back to our Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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MANAS Progress Report

• Currently developed a HTTP Service for web access
  for a new device entering the network
• No authentication
• The location of the proxy to access the web is
  obtained dynamically

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MANAS Progress Report

• The Mobile MANAS Agent starts a local data pipe
  on the device
• The Agent has the information regarding the
  location of the network HTTP proxy
• Packets may be filtered/monitored by the local
  Agent and feedback sent to a network security
  manager

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MANAS Progress Report

• The basic model is working and will be
  demonstrated now
• Client enters network as a DHCP client
• Client has 26KB of code very light
• Rest of the code is retrieved from the Lookup
  Service

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Getting back to our Agenda

• Primer
• Motivation
• MANAS The Future of Mobile Access
• MANAS The Big Picture
• MANAS Backstage
• MANAS Applications
• MANAS Progress Report
• Brainstorm

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BRAINSTORM

• Lets Cerebrate !!!

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Thanks !!!

• http//www-unix.ecs.umass.edu/ahaneef