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From: Sven Eckelmann <sven@narfation.org>
Subject: batman-adv: User defined nonce in packet header [was: batman-adv related query]
Date: Sat, 30 Jan 2021 10:36:42 +0100
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To: Moullick Mehra <dedamamoge@gmail.com>
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From: Sven Eckelmann <sven@narfation.org>
To: Moullick Mehra <dedamamoge@gmail.com>
Cc: b.a.t.m.a.n@lists.open-mesh.org
Subject: batman-adv: User defined nonce in packet header [was: batman-adv related query]
Date: Sat, 30 Jan 2021 10:36:42 +0100
Message-ID: <1708045.1bVLHfgjVF@sven-edge>
In-Reply-To: <CAJZjC1surX81hwZLchC6jfETiFGE9F1tZbUJKhbbwE7Q5UOqXQ@mail.gmail.com>
References: <CAJZjC1surX81hwZLchC6jfETiFGE9F1tZbUJKhbbwE7Q5UOqXQ@mail.gmail.com>

[please use a relevant subject when writing to the mailing list]

On Saturday, 30 January 2021 10:25:51 CET Moullick Mehra wrote:
> Is there any way to add a nonce value to the
> packet header? The reason being that I want to add an authentication
> mechanism where the firewall permits only selected headers that have
> this nonce. Hope this makes sense.

Not with the mainline batman-adv. But you can always add your own changes to 
your code - making it incompatible with mainline batman-adv.

But I would highly recommend to handle authentication on a layer outside of 
batman-adv.

Btw. "nonce" is a "number only used once". And you wrote here that the 
firewall only whitelist one specific nonce. Which would imply that your nonce 
is not used only once...

Kind regards,
	Sven
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