[routing-manager] employ RA hash tracking to detect self-originating RAs (#9939)

This commit updates how `RoutingManager` differentiates between
self-generated RA messages and those from other sources sending RA on
the same device. This enables learning of the RA header, specifically
the default route lifetime.

This commit introduces a new mechanism to calculate and store a SHA256
hash of recently emitted RAs. Received RAs are cross-referenced
against the stored hashes to determine their origin. This replaces
the prior method, which relied on parsing and analyzing the included
options in the received RA.

A new test case is added in `test_routing_manager` to validate the
learning of RA header from other sources on same device.
3 files changed
tree: 6bed4b9938a01893dd2fbcae0e4b9de9552fd935
  1. .github/
  2. doc/
  3. etc/
  4. examples/
  5. include/
  6. script/
  7. src/
  8. tests/
  9. third_party/
  10. tools/
  11. zephyr/
  12. .clang-format
  13. .clang-tidy
  14. .code-spell-ignore
  15. .codecov.yml
  16. .default-version
  17. .gitattributes
  18. .gitignore
  19. .gn
  20. .prettierrc
  21. AUTHORS
  22. BUILD.gn
  23. CMakeLists.txt
  24. CODE_OF_CONDUCT.md
  25. CONTRIBUTING.md
  26. LICENSE
  27. NOTICE
  28. README.md
  29. SECURITY.md
  30. STYLE_GUIDE.md
README.md

OpenThread Build Simulation Docker Coverage Status


What is OpenThread?

OpenThread released by Google is...

...an open-source implementation of the Thread networking protocol. Google Nest has released OpenThread to make the technology used in Nest products more broadly available to developers to accelerate the development of products for the connected home.

...OS and platform agnostic, with a narrow platform abstraction layer and a small memory footprint, making it highly portable. It supports both system-on-chip (SoC) and network co-processor (NCP) designs.

...a Thread Certified Component, implementing all features defined in the Thread 1.3.0 specification, including all Thread networking layers (IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, Mesh Routing) and device roles, as well as Border Router support.

More information about Thread can be found at threadgroup.org. Thread is a registered trademark of the Thread Group, Inc.

Who supports OpenThread?

Getting started

All end-user documentation and guides are located at openthread.io. If you're looking to do things like...

  • Learn more about OpenThread features and enhancements
  • Use OpenThread in your products
  • Learn how to build and configure a Thread network
  • Port OpenThread to a new platform
  • Build an application on top of OpenThread
  • Certify a product using OpenThread

...then openthread.io is the place for you.

Note: For users in China, end-user documentation is available at openthread.google.cn.

If you're interested in contributing to OpenThread, read on.

Contributing

We would love for you to contribute to OpenThread and help make it even better than it is today! See our Contributing Guidelines for more information.

Contributors are required to abide by our Code of Conduct and Coding Conventions and Style Guide.

License

OpenThread is released under the BSD 3-Clause license. See the LICENSE file for more information.

Please only use the OpenThread name and marks when accurately referencing this software distribution. Do not use the marks in a way that suggests you are endorsed by or otherwise affiliated with Nest, Google, or The Thread Group.

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