dhcpd 4.2 no longer knows ns-update operator
Jiri Popelka
jpopelka at redhat.com
Fri Feb 3 16:22:51 UTC 2012
Hi,
the code for parsing ns-update operator is not compiled by default because
it's (common/parse.c:4042) in
#if defined(NSUPDATE_OLD)
#endif
and NSUPDATE_OLD is not defined by default.
Can somebody from ISC confirm that parsing of ns-update operator was
removed intentionally ?
Thanks.
If that's a bug (you had wanted to remove only parsing or dns-update and
dns-delete but not ns-update),
then the fix is easy (see attached patch).
--
Jiri
On 02/01/2012 11:21 AM, Eddie Lania wrote:
> Description of problem: I am trying this in my dhcpd.conf:
>
> # start here
> option oe-key code 159 = string;
> option oe-gateway code 160 = ip-address;
>
> on commit {
> if (not static and
> ((config-option server.ddns-updates = null) or
> (config-option server.ddns-updates != 0))) {
>
> if exists oe-key {
> set ddns-rev-name =
> concat (binary-to-ascii (10, 8, ".",
> reverse (1, leased-address)), ".",
> pick (config-option server.ddns-rev-domainname,
> "in-addr.arpa."));
>
> set full-oe-key = option oe-key;
>
> switch (ns-update (delete (IN, 25, ddns-rev-name, null),
> add (IN, 25, ddns-rev-name, full-oe-key,
> lease-time / 2)))
> {
> default:
> unset ddns-rev-name;
> break;
> case NOERROR:
> on release or expiry {
> switch (ns-update (delete (IN, 25, ddns-rev-name, null))) {
> case NOERROR:
> unset ddns-rev-name;
> break;
> }
> }
> }
> }
> }
> }
> # stop here
>
> My goal is to clean up dns records for released or expired dhcp leases.
>
> The script above was found on the internet.
>
> The problem is that dhcpd will not start with this code but fails with a
> message:
>
> /etc/dhcp/dhcpd.conf line 131: expecting data or numeric expression.
> switch (ns-update
> ^
> Configuration file errors encountered -- exiting
>
>
> I cannot find anything on the net how this should be solved.
> Is it a bug?
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