merge, arrange to handle callbacks from the socket code after we've deleted
the socket and deal with the quantum issue in the tasks. This last will
be removed shortly as a better fix is now available.
fixed-address6 (DHCPv6) is in use or not. Host scoped configuration takes
precedence. This fixes two bugs, one where host scoped configuration
would not be included from a non-fixed-address6 host record, and the equal
and opposite bug where subnet6 scoped configuration would not be used when
over-riding vlaues were not present in a matching fixed-address6 host
configuration. [ISC-Bugs #20069]
invalid calling parameters given to the ns_name_ntop() function.
Specifically, it detects if the caller passed a pointer and size pair
that causes the pointer to integer-wrap past zero. [ISC-Bugs #17737]
they had performed ddns updates on a lease that is expiring, or was
released through the primary. As part of the same fix, stale binding scopes
will now be removed if a change in identity of a lease's active client is
detected, rather than simply if a lease is noticed to have expired (which it
may have expired without a failover server noticing in some situations).
[ISC-Bugs #19826b]
function of the same name and presents the results as a data expression.
This function can be used to incorporate the system level hostname of
the system the DHCP software is operating on in responses or queries (such
as including a failover partner's hostname in a dhcp message or binding
scope, or having a DHCP client send any system hostname in the host-name or
FQDN options by default). [ISC-Bugs #17351]
remote attackers to execute arbitrary commands as root on the system,
or simply terminate the client, by providing an over-long subnet-mask
option. [ISC-Bugs #19839]
environments where DHCP servers can be reasonably guaranteed to be
"down" when the failover TCP socket is severed, "auto-partner-down".
This parameter is not generally safe, and by default is disabled, so
please carefully review the documentation of this parameter in the
dhcpd.conf(5) manpage before determining to use it yourself.
[ISC-Bugs #19600]
in scheduling a failover reconnection, if the link had not negotiated a
failover connect yet (e.g.: connection refused, asynch socket connect()
timeouts). [ISC-Bugs #19684]
