https://github.com/intel/liblwm2m

liblwm2m is an implementation of the LWM2M protocol from the Open Mobile Alliance.
https://github.com/intel/liblwm2m

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

• Host: GitHub
• URL: https://github.com/intel/liblwm2m
• Owner: intel
• License: bsd-3-clause
• Archived: true
• Created: 2013-05-31T15:06:13.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2015-03-25T15:27:40.000Z (over 9 years ago)
• Last Synced: 2024-04-14T09:39:09.729Z (7 months ago)
• Language: C
• Homepage:
• Size: 1010 KB
• Stars: 44
• Watchers: 24
• Forks: 28
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • License: LICENSE

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README

        

***

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 This repo is no longer updated.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.