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Parse EDNS (and EDNS options) #48

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bortzmeyer opened this issue May 31, 2022 · 2 comments
Open

Parse EDNS (and EDNS options) #48

bortzmeyer opened this issue May 31, 2022 · 2 comments
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@tungd

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@bortzmeyer
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It would be nice to add support for parsing EDNS OPT record, and also to parse the options in it (cookie, NSID, etc). It does not seem there is support for that in the Erlang library. I added one in the Drink server (lib/drink/parsing.ex), you're welcome to reuse the code if you want.
@tungd tungd self-assigned this Jun 2, 2022
@bortzmeyer
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bortzmeyer commented Aug 17, 2022 •
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An alternative could be to use this Erlang library(untested). It parses some EDNS options (NSID, ECS but not cookies).

@bortzmeyer
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I just refactored the EDNS code in Drink, it is now in lib/drink/edns.ex and lib/drink/ednscodes.ex. Feel free to reuse it. It now handles NSID, ECS, and cookies.

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@tungd tungd

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