2010.08.10 -- Version 2.2-beta1

* When aborting in a non-graceful way, try to execute do_close_tun in
  init.c prior to daemon exit to ensure that the tun/tap interface is
  closed and any added routes are deleted.

* Fixed an issue where AUTH_FAILED was not being properly delivered
  to the client when a bad password is given for mid-session reauth,
  causing the connection to fail without an error indication.

* Don't advance to the next connection profile on AUTH_FAILED errors.

* Fixed an issue in the Management Interface that could cause
  a process hang with 100% CPU utilization in --management-client
  mode if the management interface client disconnected at the
  point where credentials are queried.

* Fixed an issue where if reneg-sec was set to 0 on the client,
  so that the server-side value would take precedence,
  the auth_deferred_expire_window function would incorrectly
  return a window period of 0 seconds.  In this case, the
  correct window period should be the handshake window
  period.

* Modified ">PASSWORD:Verification Failed" management interface
  notification to include a client reason string:

    >PASSWORD:Verification Failed: 'AUTH_TYPE' ['REASON_STRING']

* Enable exponential backoff in reliability layer
  retransmits.

* Set socket buffers (SO_SNDBUF and SO_RCVBUF) immediately after
  socket is created rather than waiting until after connect/listen.

* Management interface performance optimizations:

  1. Added env-filter MI command to perform filtering on env vars
     passed through as a part of --management-client-auth

  2. man_write will now try to aggregate output into larger blocks
     (up to 1024 bytes) for more efficient i/o

* Fixed minor issue in Windows TAP driver DEBUG builds
  where non-null-terminated unicode strings were being
  printed incorrectly.

* Fixed issue on Windows with MSVC compiler, where TCP_NODELAY support
  was not being compiled in.

* Proxy improvements:

  Improved the ability of http-auth "auto" flag to dynamically detect
  the auth method required by the proxy.

  Added http-auth "auto-nct" flag to reject weak proxy auth methods.

  Added HTTP proxy digest authentication method.

  Removed extraneous openvpn_sleep calls from proxy.c.

* Implemented http-proxy-override and http-proxy-fallback directives to make it
  easier for OpenVPN client UIs to start a pre-existing client config file with
  proxy options, or to adaptively fall back to a proxy connection if a direct
  connection fails.

* Implemented a key/value auth channel from client to server.

* Fixed issue where bad creds provided by the management interface
  for HTTP Proxy Basic Authentication would go into an infinite
  retry-fail loop instead of requerying the management interface for
  new creds.

* Added support for MSVC debugging of openvpn.exe in settings.in:

  # Build debugging version of openvpn.exe
  !define PRODUCT_OPENVPN_DEBUG

* Implemented multi-address DNS expansion on the network field of route
  commands.

  When only a single IP address is desired from a multi-address DNS
  expansion, use the first address rather than a random selection.

* Added --register-dns option for Windows.

  Fixed some issues on Windows with --log, subprocess creation
  for command execution, and stdout/stderr redirection.

* Fixed an issue where application payload transmissions on the
  TLS control channel (such as AUTH_FAILED) that occur during
  or immediately after a TLS renegotiation might be dropped.

* Added warning about tls-remote option in man page.

* Community patches (from openvpn-testing.git tree)

  Alberto Gonzalez Iniesta (1):
      Debian patch: Fix spelling in log message

  Dan Nelson (1):
      bash->bourne script cleanup

  Daniel Johnson (1):
      auth-pam plugin update: Support DOMAIN+USERNAME in config

  David Sommerseth (22):
      Reworked the eurephia patch for inclusion to the openvpn-testing tree
      Added mapping files from SVN commit ID to more descriptive commit IDs.
      verb 5 logging wrongly reports received bytes
      On TARGET_LINUX define _GNU_SOURCE if not defined
      Fix autotools cross-compiling support
      Add comile time information/settings from ./configure to --version
      Make use of counter_type instead of int when counting bytes and network packets
      Updated the man page to reflect the behavioural change of create_temp_file()
      Removed no longer needed delete_file() call
      Fixed potential NULL pointer issue
      Fix dependency checking for configure.h (v2)
      Make use of automake CLEANFILES variable instead of clean-local rule
      Don't add compile time information if --enable-small is used
      Harden create_temp_filename() (version 2)
      Renamed all calls to create_temp_filename()
      Updated the man page to reflect the behavioural change of create_temp_file()
      Removed no longer needed delete_file() call
      Avoid repetition of "this config may cache passwords in memory" (v2)
      Revamped the script-security warning logging (version 2)
      Fixed client hang when server don't PUSH (aka the NO_SOUP_FOR_YOU patch)
      Solved hidden merge conflict between changes in feat_misc and bugfix2.1
      Fix multiple configured scripts conflicts issue (version 2)

  Davide Brini (6):
      OCSP_check.sh: new check logic
      The man page does not mention that the default value of "mssfix" is 1450.
      Enhance contrib/pull-resolv-conf/client.{up,down} scripts
      Fix missing /bin/bash -> /bin/sh
      Fix certificate serial number export
      Exclude ping and control packets from activity

  Emilien Mantel (2):
      Choose a different field in X509 to be username
      Fixed static defined length check to use sizeof()

  Enrico Scholz (1):
      Allow 'lport 0' setup for random port binding

  Fabian Knittel (1):
      ssl.c: fix use of openvpn_run_script()'s return value

  Gert Doering (3):
      remove duplicate code in FREEBSD+DRAGONFLY system-dependent ifconfig
      Implement IPv6 in TUN mode for Windows TAP driver.
      fix date format mistake in PRODUCT_TAP_RELDATE (Peter Stuge)

  Jan Brinkmann (1):
      The man page needs dash escaping in UTF-8 environments

  Karl O. Pinc (2):
      Change verify-cn so cn is no longer hardcoded in openvpn's config file
      Several updates to openvpn.8 (man page updates)

  Mathieu GIANNECCHINI (1):
      enhance tls-verify possibility

  Wil Cooley (1):
      pkitool lacks expected option "--help"

  chantra (2):
      Handle non standard subnets in PF grammar
      Fix errors in openvpn-plugin.h documentation
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