changelog

OpenVPN -- A Secure tunneling daemon

OpenVPN
Copyright (C) 2002-2003 James Yonan <[e-mail]>

$Id: ChangeLog,v 1.87 2003/07/16 04:26:16 jimyonan Exp $

2003.08.04 -- Version 1.4.3

* Added md5.h include to crypto.c
  to fix build problem on OpenBSD.

2003.07.15 -- Version 1.4.2

* Removed adaptive bandwidth from
  --mtu-dynamic -- its absence appears
  to work better than its existence (1.4.1.2).
* Minor changes to --shaper to fix long
  retransmit timeouts at low bandwidth
  (1.4.1.2).
* Added LOG_RW flag to openvpn.h for
  debugging (1.4.1.2).
* Silenced spurious configure warnings (1.4.1.2).
* Backed out --dev-name patch, modified --dev
  to offer equivalent functionality (1.4.1.4).
* Added an optional parameter to --daemon and
  --inetd to support the passing of a custom
  program name to the system logger (1.4.1.5).
* Add compiled-in options to the program title
  (1.4.1.5).
* Coded the beginnings of a WIN32 port (1.4.1.5).
* Succeeded in porting to Win32 Mingw environment
  and running loopback tests (1.4.1.6).  Still
  need a kernel driver for full Win32
  functionality.
* Fixed a bug in error.h where
  HAVE_CPP_VARARG_MACRO_GCC was misspelled.
  This would have caused a significant slowdown
  of OpenVPN when built by compilers that
  lack ISO C99 vararg macros (1.4.1.6).
* Created an init script for Gentoo Linux
  in ./gentoo directory (1.4.1.6).

2003.05.15 -- Version 1.4.1

* Modified the Linux 2.4 TUN/TAP open code to
  fall back to the 2.2 TUN/TAP interface if the
  open or ioctl fails.
* Fixed bug when --verb is set to 0 and non-fatal
  socket errors occur, causing 100% CPU utilization.
  Occurs on platorms where
  EXTENDED_SOCKET_ERROR_CAPABILITY is defined,
  such as Linux 2.4.
* Fixed typo in tun.c that was preventing
  OpenBSD build.
* Added --enable-mtu-dynamic configure option
  to enable --mtu-dynamic experimental option.
	
2003.05.07 -- Version 1.4.0

* Added --replay-persist feature to allow replay
  protection across sessions.
* Fixed bug where --ifconfig could not be used
  with --tun-mtu.
* Added --tun-mtu-extra parameter to deal with
  the situation where a read on a TUN/TAP device
  returns more data than the device's MTU size.
* Fixed bug where some IPv6 support code for
  Linux was not being properly ifdefed out for
  Linux 2.2, causing compile errors.
* Added OPENVPN_EXIT_STATUS_x codes to
  openvpn.h to control which status value
  openvpn returns to its caller (such as
  a shell or inetd/xinetd) for various conditions.
* Added OPENVPN_DEBUG_COMMAND_LINE flag to
  openvpn.h to allow debugging in situations
  where stdout, stderr, and syslog cannot be used
  for message output, such as when OpenVPN is
  instantiated by inetd/xinetd.
* Removed owner-execute permission from file
  created by static key generator (Herbert Xu
  and Alberto Gonzalez Iniesta).
* Added --passtos option to allow IPv4 TOS bits
  to be passed from TUN/TAP input packets to
  the outgoing UDP socket (Craig Knox).
* Added code to prevent open socket file descriptors
  from being accessible to called scripts.
* Added --dev-name option (Christian Lademann).
* Added --mtu-disc option for manual control
  over MTU options.
* Show OS MTU value on UDP socket write failures
  (linux only).
* Numerous build system and portability
  fixes (Matthias Andree).
* Added better sensing of compiler support for
  variable argument macros, including (a) gcc
  style, (b) ISO C 1999 style, and (c) no support.
* Removed generated files from CVS.  Note INSTALL
  file for new CVS build commands.
* Changed all internal _* symbols to x_*
  for C standards compliance.
* Added TUN/TAP open code to cycle dynamically
  through unit numbers until it finds a free
  unit (based on code from Thomas Gielfeldt
  and VTun).
* Added dynamic MTU and fragmenting infrastructure
  (Experimental).  Rebuild with FRAGMENT_ENABLE
  defined to enable.
* Minor changes to SSL/TLS negotiation, use
  exponential backoff on retransmits, and use
  a smaller MTU size (note that no protocol
  changes have been made which would break
  compatibility with 1.3.x).
* Added --enable-strict-options flag
  to ./configure.  This option will cause
  a more strict check for options compatibility
  between peers when SSL/TLS negotiation is used,
  but should only be used when both OpenVPN peers
  are of the same version.
* Reorganization of debugging levels.
* Added a workaround in configure.ac for
  default SSL header location on Linux
  to fix RH9 build problem.
* Fixed potential deadlock when pthread support
  is used on OSes that allocate a small socketpair()
  message buffer.
* Fixed openvpn.init to be sh compliant
  (Bishop Clark).
* Changed --daemon to wait until all
  initialization is finished before becoming a
  daemon, for the benefit of initialization
  scripts that want a useful return status from
  the openvpn command.
* Made openvpn.init script more robust, including
  positive indication of initialization errors
  in the openvpn daemon and better sanity checks.
* Changed --chroot to wait until initialization
  is finished before calling chroot(), and allow
  the use of --user and --group with --chroot.
* When syslog logging is enabled (--daemon or
  --inetd), set stdin/stdout/stderr to point
  to /dev/null.
* For inetd instantiations, dup socket descriptor
  to a >2 value.
* Fixed bug in verify-cn script, where test would
  incorrectly fail if CN=x was the last component
  of the X509 composite string (Anonymous).
* Added Markus F.X.J. Oberhumer's special
  license exception to COPYING.

2002.10.23 -- Version 1.3.2

* Added SSL_CTX_set_client_CA_list call
  to follow the canonical form for TLS initialization
  recommended by the OpenSSL docs.  This change allows
  better support for intermediate CAs and has no impact
  on security.
* Added build-inter script to easy-rsa package, to
  facilitate the generation of intermediate CAs.
* Ported to NetBSD (Dimitri Goldin).
* Fixed minor bug in easy-rsa/sign-req.  It refers to
  openssl.cnf file, instead of $KEY_CONFIG, like all
  other scripts (Ernesto Baschny).
* Added --days 3650 to the root CA generation command
  in the HOWTO to override the woefully small 30 day
  default (Dominik 'Aeneas' Schnitzer).
* Fixed bug where --ping-restart would sometimes
  not re-resolve remote DNS hostname.
* Added --tun-ipv6 option and related infrastructure
  support for IPv6 over tun.
* Added IPv6 over tun support for Linux (Aaron Sethman).
* Added FreeBSD 4.1.1+ TUN/TAP driver notes to
  INSTALL (Matthias Andree).
* Added inetd/xinetd support (--inetd) including
  documentation in the HOWTO.
* Added "Important Note on the use of commercial certificate
  authorities (CAs) with OpenVPN" to HOWTO based on
  issues raised on the openvpn-users list.

2002.07.10 -- Version 1.3.1

* Fixed bug in openvpn.spec and openvpn.init
  which caused RPM upgrade to fail.

2002.07.10 -- Version 1.3.0

* Added --dev-node option to allow explicit selection of
  tun/tap device node.
* Removed mlockall call from child thread, as it doesn't
  appear to be necessary (child thread inherits mlockall
  state from parent).
* Added --ping-timer-rem which causes timer for --ping-exit
  and --ping-restart not to run unless we have a remote IP
  address.
* Added condrestart to openvpn.init and openvpn.spec
  (Bishop Clark).
* Added --ifconfig case for FreeBSD (Matthias Andree).
* Call openlog with facility=LOG_DAEMON (Matthias Andree).
* Changed LOG_INFO messages to LOG_NOTICE.
* Added warning when key files are group/others accessible.
* Added --single-session flag for TLS mode.
* Fixed bug where --writepid would segfault if used with
  an invalid filename.
* Fixed bug where --ipchange status message was formatted
  incorrectly.
* Print more concise error message when system() call
  fails.
* Added --disable-occ option.
* Added --local, --remote, and --ifconfig options sanity
  check.
* Changed default UDP MTU to 1300 and TUN/TAP MTU to
  1300.
* Successfully tested with OpenSSL 0.9.7 Beta 2.
* Broke out debug level definitions to errlevel.h
* Minor documentation and web site changes.