data-expr question

[Philip A. Prindeville]

Hi.

I've not hacked dhcp clients or servers since RFC-1048, so I'm a little
rusty...

I'm using dhclient-4.1.0 on Fedora Core 12 (updated), and we use a
variety of devices (bridges of the Ethernet/Wifi and Ethernet/DOCSIS)
variety that invariably munge the source address on DHCP packets when
forwarding (don't know why).

As a workaround, I need to send the client-identifier which the bridge
*won't* munge, but don't want to explicitly give it in each config file
because that's unmanageable.

I tried:

send dhcp-client-identifier hardware;

but this, of course, didn't work because the client doesn't do data-expr
evaluation on this command.

What would be involved in adding that, or simply adding a switch that
makes this behavior the default?

And if I submitted a patch for the latter, would it likely be accepted?

We don't want to run patched sources whenever possible... the former is
more generically useful and hence more likely to be accepted, but it's
also a lot more churn on code that I've never looked at before.

Thanks,

-Philip