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liblwm2m is an implementation of the LWM2M protocol from the Open Mobile Alliance.

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***

liblwm2m is now wakaama (https://github.com/eclipse/wakaama). This repo is no longer updated. Please use https://github.com/eclipse/wakaama instead

***


liblwm2m is an implementation of the Open Mobile Alliance's LightWeight M2M
protocol (LWM2M).


Source Layout
-------------

-+- core                (the LWM2M engine)
 |    |
 |    +- er-coap-13     (Erbium's CoAP engine from
 |                       http://people.inf.ethz.ch/mkovatsc/erbium.php, modified
 |                       to run on linux)
 |
 +- tests               (example and test application)
      |
      +- client         (a command-line LWM2M client with two test objects)
      |
      +- server         (a command-line LWM2M server)
      |
      +- TLV            (application decoding two hard-coded TLV buffers)
      |
      +- utils          (utility functions for connection handling and command-
                         line interface)


Compiling
---------

Despite its name, liblwm2m is not a library but files to be built with an
application. liblwm2m uses CMake. Look at tests/server/CMakeLists.txt for an
example of how to include it. 
Two compilation switches are used: LWM2M_CLIENT_MODE and LWM2M_SERVER_MODE.
Define LWM2M_CLIENT_MODE to enable LWM2M Client interfaces. Define
LWM2M_SERVER_MODE to enable LWM2M Server interfaces. Both can be defined at the
same time.


Testing
-------

To compile the test server
 - - - - - - - - - - - - -

In the any directory, run the following commands:
    cmake [liblwm2m directory]/tests/server
    make
    ./lwm2mserver

The lwm2mserver listens on UDP port 5684. It features a basic command line
interface. Type 'help' for a list of supported commands.


To compile the test client
 - - - - - - - - - - - - -
  
In the any directory, run the following commands:
    cmake [liblwm2m directory]/tests/client
    make
    ./lwm2mclient

The lwm2mclient features four LWM2M objects:
    - Server Object (id: 1) provided by the core.
    - Device Object (id: 3) containing hard-coded values from the Example LWM2M
    Client of Appendix E of the LWM2M Technical Specification.
    - FirmwareUpdate Object (id: 5) as a skeleton.
    - a test object (id: 1024) with the following description:
    
                           Multiple
          Object |  ID  | Instances | Mandatoty |
           Test  | 1024 |    Yes    |    No     |
         
           Ressources:
                       Supported    Multiple
           Name | ID | Operations | Instances | Mandatory |  Type   | Range |
           test |  1 |    R/W     |    No     |    Yes    | Integer | 0-255 |
           exec |  2 |     E      |    No     |    Yes    |         |       |
    
The lwm2mclient opens udp port 5683 and tries to register to a LWM2M Server at
127.0.0.1:5684. It features a basic command line interface. Type 'help' for a
list of supported commands.

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liblwm2m is an implementation of the LWM2M protocol from the Open Mobile Alliance.

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