[Kea-users] what does ach dhcpv4 hook point/parameter mean ?

[luckydog xf]

Thanks for your reply.
Actually, I have read that docs already. However, I'm still puzzled. I'm
going to add and remove DNS records against Samba with kea-dhcp hook
points, which is the same as DDNS.

Here is the skeleton of my  bash script. Not sure if the action for each
hook point is right or not.
While add_record and delete_record are public functions.
---
# hook points
case "$1" in

        lease4_renew|lease4_recover )

        # Do nothing
                echo $1
                exit 0
        ;;

        leases4_committed)

                echo $1
                delete_record
                add_record
        ;;

        lease4_expire |lease4_release) #|lease4_decline)
                echo $1

                delete_record
        ;;

        *)
                echo "Unhandled function call ${*}"
                exit 123
        ;;
esac


On Thu, Aug 8, 2024 at 3:38 PM Francis Dupont <fdupont at isc.org> wrote:

> luckydog xf writes:
> >  I'm running External Hook Scripts now. From
> > https://kea.readthedocs.io/en/kea-2.6.0/arm/hooks.html there are the
> > following hook points.
>
> => the right documentation for writing hooks is not the ARM but
> the developer guide and its Hook Developer's Guide section
> https://reports.kea.isc.org/dev_guide/df/d46/hooksdgDevelopersGuide.html
>
> If you can't find all answers to your questions please come back to
> this mailing list.
>
> BTW names as LEASES4_AT0_HOSTNAME are about a particular hook library
> running shell scripts described in its own section of the ARM
> (Run Script Support for External Hook Scripts) which in fact just
> exposes parameters which can be read from some callout points.
>
> Regards
>
> Francis Dupont <fdupont at isc.org>
>
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