keepalived-1.2.1

keepalived-1.2.1

* Vincent Bernat <bernat <at> luffy.cx>:
  VRRP: Fix incorrect computation for packet size
* Vincent Bernat <bernat <at> luffy.cx>:
  VRRP: handle passwords up to 8 characters
* Vincent Bernat <bernat <at> luffy.cx>:
  When updating weight, check quorum state.
  MISC check can update the weight of a real server. This
  can lead to a change in quorum state.
  We factor out quorum handling from perform_svr_state()
  into a new function update_quorum_state() that will check if
  the quorum state changed and if yes, update sorry server status,
  exec quorum commands and add back or remove alive real servers
  (with existing function perform_quorum_state()).
  This patch is mostly cut'n'paste and adding a call to
  update_quorum_state() in update_svr_wgt(). We also make
  perform_svr_state() and update_quorum_state() almost symmetric.
* Vincent Bernat <bernat <at> luffy.cx>:
  Fix an infinite loop in master transition with sync groups.
  This patch is from Arjan Filius. See:
  http://marc.info/?l=keepalived-devel&m=128212278218825&w=2
  When transitioning to master state, keepalived might try to
  force transition to master state of other VRRP instances into
  the same group before their transition is complete. This leads
  to an infinite loop with huge VRRP trafic.
* Vincent Bernat <bernat <at> luffy.cx>:
  VRRP : Use VRRP_PRIO_DFL instead of 100 for default priority.
* Vincent Bernat <bernat <at> luffy.cx>:
  Use netpacket/packet.h instead of linux/if_packet.h to get
  sockaddr_ll.
  linux/if_packet.h pulls linux/types.h that should not be used
  by a userland program since types defined here can conflict
  with stdint.h. We use netpacket/packet.h which is a GNU LibC
  header.
* Vincent Bernat <bernat <at> luffy.cx>:
  Keep current weight on reload when initial weight is not
  altered.
  Weight can be changed by MISC_CHECK when using dynamic option.
  In case of reload, the change is lost until the script runs
  again. We record the initial weight in a separate variable and
  use it to check if a real server has changed instead of using
  the actual weight.
* Vincent Bernat <bernat <at> luffy.cx>:
  VRRP : disabled scripts and initially good scripts should be
  considered as OK.
  When a script is not weighted, its failure will lead to a
  failure of the associated VRRP instance. However, disabled
  script and scripts that are initially good (after a reload)
  should be considered as successful and not make the instance
  fail.  Moreover, a disabled script should not be used when
  computing script weights.
* Vincent Bernat <bernat <at> luffy.cx>:
  VRRP : more informative message when disabling a script due
  to use of weights.
  When using a weight for a tracked script, the script is
  disabled.  However, the warning message said that the weight
  was ignored. We change the message to tell that the script is
  ignored. Moreover, we don't change its weight since it can be
  used in another instance, not in a SYNC group.
* Vincent Bernat <bernat <at> luffy.cx>:
  check : include missing virtual server group name in a log
  message
* Vincent Bernat <bernat <at> luffy.cx>:
  configure: add a check for ETHERTYPE_IPV6.
  ETHERTYPE_IPV6 defined in net/ethernet.h is pretty recent.
  If absent, we hard-code the value into CFLAGS. This patch
  requires regeneration of configure.
* Vincent Bernat <bernat <at> luffy.cx>:
  check : update server weight in IPVS only if server is alive
  and in the pool.
  With inhibit_on_failure, a server can be in the pool and not
  alive. We don't want to set the weight of an inhibited server
  or a server in a virtual server whose qorum is not met yet.
* Vincent Bernat <bernat <at> luffy.cx>:
  check: really add back inhibited server when quorum is gained
  A previous change contained an erroneous check to add back
  alive servers when quorum state was gained. This check was
  incompatible with inhibit_on_failure. When servers were added
  back in the pool, the weight was not updated accordingly.
* Vincent Bernat <bernat <at> luffy.cx>:
  check : update server weight despite quorum when no sorry
  server.
  In absence of a sorry server, the logic is to not use quorum
  except to run commands when quorum is gained or lost. This
  means that if a MISC check modifies the weight of a server
  and there is no sorry server, we do not consider quorum.