[Dnsmasq-discuss] dnsmasq & fingerbank.org

[Denton Gentry]

https://fingerbank.org/about.html is a database of OS signatures based
on the DHCP options populated and the order in which they appear. So
for example, an Android device will typically send
'1,33,3,6,15,26,28,51,58,59' while iOS sends '1,3,6,15,119,252'.

We modified dnsmasq to export DHCP OS signatures to a
DNSMASQ_REQUESTED_OPTIONS environment variable when it forks the
dhcp-script. The environment variable is formatted to match
fingerbank. The dhcp-script we run writes the signature to a separate
file, though of course this behavior is outside of dnsmasq itself.

Is OS fingerprinting support something which could be more widely useful?
Should I rebase the patch to the current tree and start discussion?

[Simon Kelley]

The current tree already has this functionality, though the code which
implements it is somewhat different. It certainly provides a
DNSMASQ_REQUESTED_OPTIONS variable containing a comma-separated list of
decimal numbers.

Best to look at the current code, and submit a patch if it doesn't
behave as you expect.


Cheers,

Simon.

Post by Denton Gentry
https://fingerbank.org/about.html is a database of OS signatures based
on the DHCP options populated and the order in which they appear. So
for example, an Android device will typically send
'1,33,3,6,15,26,28,51,58,59' while iOS sends '1,3,6,15,119,252'.
We modified dnsmasq to export DHCP OS signatures to a
DNSMASQ_REQUESTED_OPTIONS environment variable when it forks the
dhcp-script. The environment variable is formatted to match
fingerbank. The dhcp-script we run writes the signature to a separate
file, though of course this behavior is outside of dnsmasq itself.
Is OS fingerprinting support something which could be more widely useful?
Should I rebase the patch to the current tree and start discussion?
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[Ed W]

Post by Denton Gentry
https://fingerbank.org/about.html is a database of OS signatures based
on the DHCP options populated and the order in which they appear. So
for example, an Android device will typically send
'1,33,3,6,15,26,28,51,58,59' while iOS sends '1,3,6,15,119,252'.
We modified dnsmasq to export DHCP OS signatures to a
DNSMASQ_REQUESTED_OPTIONS environment variable when it forks the
dhcp-script. The environment variable is formatted to match
fingerbank. The dhcp-script we run writes the signature to a separate
file, though of course this behavior is outside of dnsmasq itself.
Is OS fingerprinting support something which could be more widely useful?
Should I rebase the patch to the current tree and start discussion?

Ooh! I would love to see this implemented!

Ed