keepalived-0.7.6

keepalived-0.7.6

* keepalived-0.7.6 released.
* Created a common library for code modularization. This lib will
  be used by all Keepalived components (genhash + Keepalived) to
  reduce repeated and duplicated code.
* Rewrote the genhash utility using the common lib. The design is
  similar to Keepalived core design.
* Reviewed the autoconf and Makefiles for new code architecture.
* Created a html utility lib for HTTP headers manipulations.
* Extended the CHECK_HTTP and CHECK_SSL checkers to support remote
  webserver HTTP header status_code. HTTP status_code is parsed
  according to rfc2616.6.1. The keyword created for the new feature is
  "status_code" inside and "url" declaration. "status_code" feature
  can be mixed with "digest" feature. See the samples directory
  keepalived/samples/keepalived.conf.status_code for example.
* Review the CHECK_HTTP and CHECK_SSL MD5SUM code to use a common
  stream handling function.
* Matthijs van der Klip, <Matthijs.van.der.Klip@tech.omroep.nl> and I
  fixed a bug into the HTTP/SSL code that close the socket fd even
  if remote webserver has not been connected. As a result of fact,
  next socket created were imediatly closed. As a side effect, this
  altered the SMTP notification when remote webserver checked fall. No
  SMTP notification were sent if webserver were detected DOWN. Thanks
  to Matthijs for time debugging and investigation.
* VRRP : Rewrote the previous Gratuitous ARP facility. Created a lib
  (vrrp_arp.c) dealing with PF_PACKET-SOCK_RAW-ETH_P_RARP and
  sockaddr_ll.
* VRRP : Some cosmetics patch for messages logging.
* VRRP : Fixed an issue during VRRP packet building, appending VRRP
  VIPs to the VRRP packet in the network order form.
* VRRP : Reviewed the previous VRRP packet building process to not
  create the ARP header. Removec the previous hacky
  PF_PACKET-SOCK_PACKET-0x300 to use AF_INET-SOCK_RAW-PROTO to leave
  kernel appending ARP header since code doesn t currently support
  VRRP VMAC.
* VRRP : Rewrote the previous vrrp_send_pkt() function to deal with
  sendmsg(). optimization lazzyness :)
* VRRP : Extended the interfaces library to support common utility
  functions (if_setsockopt_hdrincl, if_setsockopt_bindtodevice, ...)
* VRRP : Finally extend the code to support VRRP IPSEC-AH authentication
  method. Created a IPSEC-AH seq_number syncrhonization mecanism during
  VRRP MASTER/BACKUP elections.
* VRRP : Extended the VRRP TSM to speed up instances syncrhonization
  during FAULT->BACKUP & FAULT->MASTER state transition.
* Some cosmetics patches. This release is proposed as a 1.0.0 STABLE
  release candidate.