[Dnsmasq-discuss] [PATCH] Add RFC 4833 DHCP timezone options

Simon Kelley simon at thekelleys.org.uk
Wed Sep 8 20:27:22 UTC 2021


On 06/09/2021 10:16, Petr Menšík wrote:
> I would like officially assigned option name to used if possible. I
> admit pcode and tcode are not best names for it, but they are listed
> like that on IANA [1]. I guess comment would be nice, explaining purpose
> and RFC reference.
> 
> Kea DHCP server [2] uses also pcode and tcode, can we make match them?
> Is there any other documentation for supported dhcp option names
> excluding source code? Are used names based on usage in other products?
> 


The others in that table don't use official IANA names, it's intended to
be easily-understandable names for common dhcp options in configuration
and logging. As such I'm happy with the patch.

dnsmasq --help dhcp will dump the known options, names and numbers.



Cheers,

Simon.


> 1.
> https://www.iana.org/assignments/bootp-dhcp-parameters/bootp-dhcp-parameters.xhtml#options
> 
> 2.
> https://kea.readthedocs.io/en/kea-1.6.2/arm/dhcp4-srv.html#dhcp4-std-options-list
> 
> On 9/3/21 2:13 PM, Dominik DL6ER wrote:
>> Hey Simon,
>>
>> this small patch adds the DHCP options "posix-timezone" and "tzdb-
>> timezone" as defined in RFC 4833, Section 2:
>> https://datatracker.ietf.org/doc/html/rfc4833#section-2
>>
>> Examples for valid options are
>>
>>> dhcp-option = option:posix-timezone,"CEST-
>> 1CET,M3.2.0/2:00:00,M11.1.0/2:00:00"
>>
>> and
>>
>>> dhcp-option = option:tzdb-timezone,"Europe/Berlin"
>> Best,
>> Dominik
>>
>> _______________________________________________
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> 
> -- 
> Petr Menšík
> Software Engineer
> Red Hat, http://www.redhat.com/
> email: pemensik at redhat.com
> PGP: DFCF908DB7C87E8E529925BC4931CA5B6C9FC5CB
> 
> 
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