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From: Pete Heist <pete@heistp.net>
To: Dave Taht <dave.taht@gmail.com>
Cc: flent-users <flent-users@flent.org>
Subject: Re: [Flent-users] IRTT UDP-lite support
Date: Tue, 12 Mar 2019 14:17:17 +0100	[thread overview]
Message-ID: <D5AC15C8-5C8F-4709-AA97-33AE1E5A0FE4@heistp.net> (raw)
In-Reply-To: <2639B69C-8561-4014-A567-A5F22F52A7B3@heistp.net>

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> On Mar 9, 2019, at 10:34 AM, Pete Heist <pete@heistp.net> wrote:
>> It is not because of it's additional support for a partial checksum
>> that I favor trying to make UDP-lite more deployable.
> Aha, ok! In that case I’ll put it on the list for first just supporting UDP-lite with a regular full checksum. It should be easy (said the sailor, unawares of the kraken). The partial checksum for measuring corruption can be down the road.

Unfortunately this isn’t a one-liner in Go, as the value 0 is hardcoded for the protocol argument passed in to the socket function.

It should be possible with a raw socket and making the UDP packet myself (not hard), but that requires either root privileges or cap_net_raw and looking at all proto 136 packets, which I don’t love. I’m still asking around and either way I’ll get it done at some point or another. Maybe the Go team would take a patch to add “udplite” as a new “network” argument, but I doubt it, as OS support is limited pretty much to Linux and FreeBSD.

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Flent-users mailing list

      reply	other threads:[~2019-03-12 13:18 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-08 19:25 Pete Heist
2019-03-08 20:31 ` Dave Taht
2019-03-08 21:10   ` Dave Taht
2019-03-09  9:34   ` Pete Heist
2019-03-12 13:17     ` Pete Heist [this message]

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