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Bug #10224

closed

DHCP DDNS does not add zone entries for keys when using static host DDNS definitions

Added by Andreas Bleischwitz almost 5 years ago. Updated almost 4 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Viktor Gurov
Category:
DHCP (IPv4)
Target version:
2.5.0
Start date:
01/31/2020
Due date:
% Done:

100%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.4.4-p3
Affected Architecture:
All

Description

The current implementation of dhcpdzones() in etc/inc/services.inc does not take the per host defined ddns zone and related keys into account, resulting in a unexpected behaviour of DHCP.

This seem to be caused by $sm['domain'] of services_dhcpdv4_configure() not being added to $ddns_zones[] in the loop foreach ($dhcpifconf['staticmap'] as $sm) {.

The resulting configuration file /var/dhcpd/etc/dhcpd.conf does not list any of the defined ddns-zones of a static defined host in the zone section containing a key. As of this, an external DNS would not get updated on client registrations.

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 #1

Updated by Andreas Bleischwitz almost 5 years ago

By further looking at the code, I get the feeling that the configuration for DHCP should be made modular.
Currently the configuration of each interface is parsed and the configuration options for DHCP are build based on the settings.

Most of those settings are also given for a static mapping, but some of them are ignored. And they are parsed in a different loop which duplicates code maintenance.

Creating a generic DHCP parser for DHCP-options could be applicable for general options and static-host options.

This is just an idea.

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 #3

Updated by Jim Pingle almost 5 years ago

  • Status changed from New to Pull Request Review
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 #4

Updated by Viktor Gurov about 4 years ago

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 #5

Updated by Renato Botelho about 4 years ago

  • Status changed from Pull Request Review to Feedback
  • Assignee set to Renato Botelho
  • Target version set to 2.5.0
  • % Done changed from 0 to 100

PR has been merged. Thanks!

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 #6

Updated by Anonymous about 4 years ago

  • Assignee changed from Renato Botelho to Andreas Bleischwitz

Please confirm fix

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 #7

Updated by Viktor Gurov about 4 years ago

Cosmetic js fix - hide DDNS key algorithm field if DDNS is not used:
https://gitlab.netgate.com/pfSense/pfSense/-/merge_requests/30

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 #8

Updated by Renato Botelho about 4 years ago

Viktor Gurov wrote:

Cosmetic js fix - hide DDNS key algorithm field if DDNS is not used:
https://gitlab.netgate.com/pfSense/pfSense/-/merge_requests/30

Merged

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 #9

Updated by Viktor Gurov about 4 years ago

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 #10

Updated by Jim Pingle about 4 years ago

  • Status changed from Feedback to Pull Request Review
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 #11

Updated by Renato Botelho about 4 years ago

  • Status changed from Pull Request Review to Feedback
  • Assignee changed from Andreas Bleischwitz to Viktor Gurov

PR has been merged. Thanks!

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 #13

Updated by Jim Pingle almost 4 years ago

  • Status changed from Feedback to Pull Request Review
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 #14

Updated by Renato Botelho almost 4 years ago

  • Status changed from Pull Request Review to Feedback

Merged

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 #15

Updated by Viktor Gurov almost 4 years ago

  • Status changed from Feedback to Resolved

works as expected on 2.5.0.a.20210114.2350

dhcpd.conf example:

...
host s_lan_0 {
    hardware ethernet 00:08:a2:0c:0b:8b;
    fixed-address 192.168.88.54;
    option host-name "mytesthost";
    ddns-hostname "mytesthost";
    ddns-domainname "lab.local";
    ddns-update-style interim;

}
key "Key1" {
    algorithm hmac-md5;
    secret c2Rmc2RmZGYK;
}
subclass "s_lan" 1:00:08:a2:0c:0b:8b;
ddns-update-style interim;
update-static-leases on;
zone lab.local. {
    primary 192.168.88.33;
    secondary 192.168.88.34;
    key "Key1";
}

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