* --noption requires an argument
* optimise the ARP BPF filter, thanks to Nate Karstens
* send gratuitous ARP each time we apply our IP address
* fix truncation of hostnames based on the short hostname option
* improve routing and address management by always loading all
interfaces, routes and addresses even for interfaces we are
not directly working on
* timezone, lookup-hostname, wpa_supplicant and YP hooks are no
longer installed by default but are installed to an example
directory
* fix compile on kFreeBSD
thanks to Christoph Egger for providing a temporary build host
* improve error logging of packet parsing
* fix ignoring routing messages generated by dhcpcd just before
forking
* fix handling of rapid commit messages (allow ACK after DISCOVER)
* add PROBE state so we can easily reject DHCP messages received
during the ARP probe phase
* fix CVE-2016-1503
* fix CVE-2016-1504
* Only run the IPv4LL script and rebuild routes on drop when
an address is actually dropped.
* Add noup directive to stop master mode bringing an interface up.
* Fix compile for old Linux systems.
* If only IPv4LL addresses exist, assign a default route to the
interface so that IPv4LL can talk to non IPv4LL on the same link.
* Set DHCPv4 MTU on routes instead of the interface.
This matches IPv6 behaviour and works around dodgy interfaces
where a MTU change can reset the PHY causing an infinite loop.
* MTU is now requsted by default in dhcpcd.conf again.
* noauthrequired also allows unauthenticated FORCERENEW and
RECONFIGURE messages.
* Simplify the socket code by adding a custom function instead of
having the same #ifdef mess for systems without SOCK_CLOEXEC.
Thanks to Christos Zoulas.
* Don't do platform init or setting interface MTU if too small when
testing or dumping leases.
* Build new_domain_name from other sources if blank before checking
it's blank to remove any prior config. Thanks to Paul Walrath.
* Describe adding an IPv6 temporary address.
* Don't delete dhcpcd assigned IPv6 link-local addresses when
releasing leases.
* Reference old DHCPv6 FQDN when processing the hostname.
* hostname is not stamped on anymore if already set
* hostname will be set to a FQDN when possible as per RFC4702 section 3.1
* a domain is derived from the FQDN if no domain option is set
* add new hostname_short command to send a short hostname for DDNS
* hostname_fqdn is now documented, along with a new server setting and the
potential problems associated with it
* the FQDN option is no longer sent by default for DHCPv4 messages
* syntax in 50-ypbind hook has been fixed
* man page corrections
* Compile correctly on Debian kFreeBSD
* invoke-rc.d now detected by configure correctly
* report hwaddr used by dhcpcd when debug is enabled
* Fix detecting inet address for INFORM support
* document reason RELEASE in dhcpcd-run-hooks
* Support RTM_CHGADDR in the upcoming NetBSD-6
This is used to work out if the hwaddr has changed as the interface
does not go down/up unlike other OSes
* ntp hook no longer attempts to restart ntpd if 1st attempt failed
Changes from 5.0.1 include
* -n option now starts dhcpcd if not already started
* 29-lookup-hostname hook installed by default, but skipped in dhcpcd.conf
* Fix warning about missing dirs if we don't have any existing state
* Fix compile on some Linux distros re linux/wireless.h
dhcpcd is a small, bloat free DHCP client which includes these features
* DHCP over firewire
* User Class
* SIP Servers
* Domain Search
* Classless Static Routes
* IPv4LL aka APIPA aka Zeroconf
* Node specific Client Identifiers
* DHCP over Infiniband
* Link carrier and interface addition/removal detection
* Dynamic route management
