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OpenVPN Change Log Copyright (C) 2002-2012 OpenVPN Technologies, Inc. <sales@openvpn.net> 2014.04.30 -- Version 2.3.4 Arne Schwabe (1):       Fix man page and OSCP script: tls_serial_{n} is decimal Dmitrij Tejblum (1):       Fix is_ipv6 in case of tap interface. Gert Doering (7):       IPv6 address/route delete fix for Win8       Add SSL library version reporting.       Minor t_client.sh cleanups       Repair --multihome on FreeBSD for IPv4 sockets.       Rewrite manpage section about --multihome       More IPv6-related updates to the openvpn man page.       Conditionalize calls to print_default_gateway on !ENABLE_SMALL James Yonan (2):       Use native strtoull() with MSVC 2013.       When tls-version-min is unspecified, revert to original versioning approach. Steffan Karger (4):       Change signedness of hash in x509_get_sha1_hash(), fixes compiler warning.       Fix OCSP_check.sh to also use decimal for stdout verification.       Fix build system to accept non-system crypto library locations for plugins.       Make serial env exporting consistent amongst OpenSSL and PolarSSL builds. Yawning Angel (1):       Fix SOCKSv5 method selection kangsterizer (1):       Fix typo in sample build script to use LDFLAGS 2014.04.08 -- Version 2.3.3 Alon Bar-Lev (1):       pkcs11: use generic evp key instead of rsa Arne Schwabe (8):       Add support of utun devices under Mac OS X       Add support to ignore specific options.       Add a note what setenv opt does for OpenVPN < 2.3.3       Add reporting of UI version to basic push-peer-info set.       Fix compile error in ssl_openssl introduced by polar external-management patch       Fix assertion when SIGUSR1 is received while getaddrinfo is successful       Add warning for using connection block variables after connection blocks       Introduce safety check for http proxy options David Sommerseth (5):       man page: Update man page about the tls_digest_{n} environment variable       Remove the --disable-eurephia configure option       plugin: Extend the plug-in v3 API to identify the SSL implementation used       autoconf: Fix typo       Fix file checks when --chroot is being used Davide Brini (1):       Document authfile for socks server Gert Doering (9):       Fix IPv6 examples in t_client.rc-sample       Fix slow memory drain on each client renegotiation.       t_client.sh: ignore fields from "ip -6 route show" output that distort results.       Make code and documentation for --remote-random-hostname consistent.       Reduce IV_OPENVPN_GUI_VERSION= to IV_GUI_VER=       Document issue with --chroot, /dev/urandom and PolarSSL.       Rename 'struct route' to 'struct route_ipv4'       Replace copied structure elements with including <net/route.h>       Workaround missing SSL_OP_NO_TICKET in earlier OpenSSL versions Heikki Hannikainen (1):       Always load intermediate certificates from a PKCS#12 file Heiko Hund (2):       Support non-ASCII TAP adapter names on Windows       Support non-ASCII characters in Windows tmp path James Yonan (3):       TLS version negotiation       Added "setenv opt" directive prefix.       Set SSL_OP_NO_TICKET flag in SSL context for OpenSSL builds, to disable TLS stateless session resumption. Jens Wagner (1):       Fix spurious ignoring of pushed config options (trac#349). Joachim Schipper (3):       Refactor tls_ctx_use_external_private_key()       --management-external-key for PolarSSL       external_pkcs1_sign: Support non-RSA_SIG_RAW hash_ids Josh Cepek (2):       Correct error text when no Windows TAP device is present       Require a 1.2.x PolarSSL version Klee Dienes (1):       tls_ctx_load_ca: Improve certificate error messages Max Muster (1):       Remove duplicate cipher entries from TLS translation table. Peter Sagerson (1):       Fix configure interaction with static OpenSSL libraries Steffan Karger (7):       Do not pass struct tls_session* as void* in key_state_ssl_init().       Require polarssl >= 1.2.10 for polarssl-builds, which fixes CVE-2013-5915.       Use RSA_generate_key_ex() instead of deprecated, RSA_generate_key()       Also update TLSv1_method() calls in support code to SSLv23_method() calls.       Update TLSv1 error messages to SSLv23 to reflect changes from commit 4b67f98       If --tls-cipher is supplied, make --show-tls parse the list.       Add openssl-specific common cipher list names to ssl.c. Tamas TEVESZ (1):       Add support for client-cert-not-required for PolarSSL. Thomas Veerman (1):       Fix "." in description of utun. 2013.05.31 -- Version 2.3.2 Arne Schwabe (3):       Only print script warnings when a script is used. Remove stray mention of script-security system.       Move settings of user script into set_user_script function       Move checking of script file access into set_user_script Davide Brini (1):       Provide more accurate warning message Gert Doering (2):       Fix NULL-pointer crash in route_list_add_vpn_gateway().       Fix problem with UDP tunneling due to mishandled pktinfo structures. James Yonan (1):       Always push basic set of peer info values to server. Jan Just Keijser (1):       make 'explicit-exit-notify' pullable again Josh Cepek (2):       Fix proto tcp6 for server & non-P2MP modes       Fix Windows script execution when called from script hooks Steffan Karger (2):       Fixed tls-cipher translation bug in openssl-build       Fixed usage of stale define USE_SSL to ENABLE_SSL svimik (1):       Fix segfault when enabling pf plug-ins 2013.03.29 -- Version 2.3.1 Arne Schwabe (4):       Remove dead code path and putenv functionality       Remove unused function xor       Move static prototype definition from header into c file       Remove unused function no_tap_ifconfig Christian Hesse (1):       fix build with automake 1.13(.1) Christian Niessner (1):       Fix corner case in NTLM authentication (trac #172) Gert Doering (5):       Update README.IPv6 to match what is in 2.3.0       Repair "tcp server queue overflow" brokenness, more <stdbool.h> fallout.       Permit pool size of /64.../112 for ifconfig-ipv6-pool       Add MIN() compatibility macro       Fix directly connected routes for "topology subnet" on Solaris. Heiko Hund (5):       close more file descriptors on exec       Ignore UTF-8 byte order mark       reintroduce --no-name-remapping option       make --tls-remote compatible with pre 2.3 configs       add new option for X.509 name verification Jan Just Keijser (1):       man page patch for missing options Josh Cepek (2):       Fix parameter listing in non-debug builds at verb 4       (updated) [PATCH] Warn when using verb levels >=7 without debug Matthias Andree (1):       Enable TCP_NODELAY configuration on FreeBSD. Samuli Seppänen (4):       Removed ChangeLog.IPv6       Added cross-compilation information INSTALL-win32.txt       Updated README       Cleaned up and updated INSTALL Steffan Karger (7):       PolarSSL-1.2 support       Improve PolarSSL key_state_read_{cipher, plain}text messages       Improve verify_callback messages       Config compatibility patch. Added translate_cipher_name.       Switch to IANA names for TLS ciphers.       Fixed autoconf script to properly detect missing pkcs11 with polarssl.       Use constant time memcmp when comparing HMACs in openvpn_decrypt. 2013.01.07 -- Version 2.3.0 Gert Doering (2):       Fix parameter type for IP_TOS setsockopt on non-Linux systems.       Fix client crash on double PUSH_REPLY. 2012.12.17 -- Version 2.3_rc2 Adriaan de Jong (1):       Fix --show-pkcs11-ids (Bug #239) Arne Schwabe (4):       Error message if max-routes used incorrectly       Properly require --key even if defined(MANAGMENT_EXTERNAL_KEY)       Remove dnsflags_to_socktype, it is not used anywhere       Fix the proto is used inconsistently warning David Sommerseth (3):       Fix double-free issue in pf_destroy_context()       The get_default_gateway() function uses warn() instead of msg()       Avoid recursion in virtual_output_callback_func() Gert Doering (2):       Implement --mssfix handling for IPv6 packets.       Fix option inconsistency warnings about "proto" and "tun-ipv6" Joachim Schipper (2):       doc/management-notes.txt: fix typo       Fix typo in ./configure message 2012.10.31 -- Version 2.3_rc1 Adriaan de Jong (1):       Fixed a bug where PolarSSL gave an error when using an inline file tag. Arne Schwabe (2):       Document man agent-external-key       Options parsing demands unnecessary configuration if PKCS11 is used David Sommerseth (2):       Make git ignore some more files       Remove the support for using system() when executing external programs or scripts Heiko Hund (2):       Fix display of plugin hook types       Support UTF-8 --client-config-dir Kenneth Rose (1):       Fix v3 plugins to support returning values back to OpenVPN. 2012.09.12 -- Version 2.3_beta1 Arne Schwabe (7):       Fixes error: --key fails with EXTERNAL_PRIVATE_KEY: No such file or directory if --management-external-key is used       Merge almost identical create_socket_tcp and create_socket_tcp6       Document the inlining of files in openvpn and document key-direction       Merge getaddr_multi and getaddr6 into one function       Document --management-client and --management-signal a bit better       Document that keep alive will double the second value in server mode and give a short explanation why the value is chosen.       Add checks for external-key-managements David Sommerseth (1):       Fix reconnect issues when --push and UDP is used on the server Gert Doering (4):       Reduce --version string detail about IPv6 to just "[IPv6]".       Put actual OpenVPN command line on top of corresponding log file.       Keep pre-existing tun/tap devices around on *BSD       make "ipv6 ifconfig" on linux compatible with busybox ifconfig Heiko Hund (6):       fix regression with --http-proxy[-*] options       add x_msg_va() log function       add API for plug-ins to write to openvpn log       remove stale _openssl_get_subject() prototype       remove unused flag SSLF_NO_NAME_REMAPPING       Add --compat-names option 2012.07.20 -- Version 2.3_alpha3 Arne Schwabe (1):       Fix compiling with --disable-management Gert Doering (1):       Repair "tap server" mode brokenness caused by <stdbool.h> fallout Heiko Hund (4):       make non-blocking connect work on Windows       don't treat socket related errors special anymore       remove unused show_connection_list debug function       add option --management-query-proxy 2012.06.29 -- Version 2.3_alpha2 Adriaan de Jong (11):       Fixed off-by-one in serial length calculation       Migrated x509_get_subject to use of the garbage collector       Migrated x509_get_serial to use the garbage collector       Migrated x509_get_sha1_hash to use the garbage collector       Ensure sys/un.h autoconf detection includes sys/socket.h       Added support for new PolarSSL 1.1 RNG       Added a configuration option to enable prediction resistance in the PolarSSL random number generator.       Use POLARSSL_CFLAGS instead of POLARSSL_CRYPTO_CFLAGS in configure.ac       Removed support for PolarSSL < 1.1       Updated README.polarssl with build system changes.       Removed stray "Fox-IT hardening" string. Alon Bar-Lev (94):       build: version should not contain '-'       package: rpm: strip should be handled by package management       cleanup: options.c: remove redundant include       cleanup: remove C++ warnings       cleanup: win32.c: wrong printf format       cleanup: remove redundant ';'       cleanup: crypto_openssl.c: remove support for pre-openssl-0.9.6       cleanup: tun.c: fix incorrect option in message (ip-win32)       cleanup: memcmp.c: remove unused source       fixup: init.c: add missing conditional for ENABLE_CLIENT_CR       build: correct place to alter WINVER is at build system       Update .gitignore       build: handle printf style format in mingw       build: rename plugin directory to plugins       build: plugins: properly use CC, CFLAGS and LDFLAGS       build: we need the sample.ovpn in future       Remove install-win32       Remove easy-rsa       Remove tap-win32       cleanup: rename tap-windows function from win32 to win       build: remove windows specific build system       build: split acinclude.m4 into m4/*       build: m4/ax_varargs.m4: cleanup       build: m4/ax_emptyarray.m4: cleanup       build: m4/ax_socklen_t.m4: cleanup       build: autotools: first pass of trivial autotools changes       build: autoconf: remove OPENVPN_ADD_LIBS useless macro       build: remove awk and non-standard autoconf output processing       build: standard directory layout       build: add libtool + windows resources for executables       build: autoconf: commands as environment       build: libdl usage       build: properly detect and use socket libs       build: autoconf: minor cleanups       build: proper selinux detection and usage       build: distribute pkg.m4       build: proper pkcs11-helper detection and usage       build: properly process lzo-stub       build: proper lzo detection and usage       build: proper crypto detection and usage       build: autoconf: update defaults for options       build: win-msvc: msbuild format       build: move out config.h include from syshead       build: split out compat       build: move gettimeofday() emulation to compat       build: move daemon() emulation into compat       build: move inet_ntop(), inet_pton() emulation into compat       cleanup: move console related function into its own module       build: move wrappers into platform module       build: windows: install version.sh to allow installer read version       build: distribute samples in windows       build: use tap-windows.h as external dependency       build: ax_varargs.m4: fixups       build: autoconf: misc sockets fixups       build: enable lzo by default       build: windows: set vendor to openvpn project + cleanups       build: assume dlfcn is available on all supported platforms       build: openbsd: detect netinet/ip.h correctly       build: tap: search for tap header       build: msvc: upgrade to Visual Studio 2010 + fixups       Enable pedantic in windows compilation       cleanup: flags should not be bool       cleanup: avoid using ~0 - generic       cleanup: avoid using ~0 - ipv6       cleanup: avoid using ~0 - netmask       cleanup: avoid using ~0 - windows       cleanup: gc usage       build: fix some statement left from conversion       build: properly detect netinet/ip.h structs       build: properly detect TUNSETPERSIST       cleanup: plugin: support C++ plugin       cleanup: remove C++ comments       cleanup: add .gitattributes to control eol style explicitly       crash: packet_id_debug_print: sl may be null       build: use stdbool.h if available       build: fix typo in --enable-save-password       build: windows: convert resources to UTF-8       build: check minimum polarssl version       cleanup: update .gitignore       cleanup: spec: make space/tab consistent       build: spec: we support openssl >= 0.9.7       build: insall README* document using build system       build: detect sys/wait.h required for *bsd       build: add git revision to --version output if build from git repository       build: cleanup: yet another forgotten brackets       build: update INSTALL to recent changes       build: support platforms that does not need explicit tun headers       build: do not support <polarssl-1.1.0       build: add --with-special-build to provide special build string       cleanup: pkcs11.c: resolve wanings       build: integrate plugins build into core build       build: plugins: set defaults based on platform       cleanup: windows: convert argv (UCS-2 to UTF-8) at earliest       build: msvc: chdir with change drive to script location Arne Schwabe (7):       Add the query to the error message.       Explain that route-nopull also causes the client to ignore dhcp options.       Add the name of the context where option is not allowed to the error message.       Only use tmpdir if tmp_dir is really used.       Completely remove ancient IANA port warning.       Remove ENABLE_INLINE_FILES conditionals       Remove ENABLE_CONNECTIONS ifdefs David Sommerseth (5):       Clean-up: Presume that Linux is always IPv6 capable at build time       Simplify check_cmd_access() function       Change version to indicate the master branch is not a version       Some filesystems don't like ':', which is a path 'make dist' would use       Remove two unused functions Frank de Brabander (1):       Fix reported compile issues on OSX 10.6.8 Gert Doering (10):       repair t_client.sh test after build system revolution       t_client.sh iproute2 script fixes       t_client.sh - fix for iproute2, print summary line       Implement search for "first free" tun/tap device on Solaris       cleanup and redefine metric handling for IPv6 routes       remove "*option" element in "struct route_ipv6"       Remove warning about explicit support for IPv6 support not provided MacOS X       Add missing pieces to IPv6 route gateway handling.       Update TODO.IPv6 list       Remove #include "config.h" from ssl_polarssl.h Heiko Hund (3):       remove wrapper code for Windows CryptoAPI function       fix warnings in event.c when building for win32-64       remove the --auto-proxy option from openvpn Igor Novgorodov (1):       Remove calls to OpenSSL when building with --disable-ssl Jonathan K. Bullard (2):       Fix file access checks on commands       Clarified the docs and help screen about what a 'cmd' is Samuli Seppänen (1):       Added notes about upgrading from 2.3-alpha1 and earlier to INSTALL-win32.txt 2012.02.21 -- Version 2.3-alpha1 Adriaan de Jong (127):       Added Doxygen doxyfile       Changed configure to accept --with-ssl-type=openssl       Refactored to rand_bytes for OpenSSL-independency       Refactored OpenSSL-specific constants       Refactored maximum cipher and hmac length constants       Refactored show_available_* functions       Refactored SSL_clear_error()       Refactored crypto initialisation functions       Refactored DES key manipulation functions       Refactored NTLM DES key generation       Refactored message digest type functions       Refactored message digest functions       Refactored HMAC functions       Refactored cipher key types       Refactored cipher functions       Added PRNG doxygen       Refactored: Moved crypto.h inline functions to end of file       Removed stale OpenSSL defines from crypto.h       Added a check for Openssl or PolarSSL defines       Refactored: Added stubs for new files       Refactored SSL initialisation functions       Refactored TLS_PRF to new hmac and md primitives       Refactored tls_show_available_ciphers       Refactored get_highest_preference_tls_cipher       Refactored root SSL context initialisation       Refactored new external key code       Refactored DH paramater loading       Refactored root TLS option settings       Refactored PKCS#12 key loading       Refactored PKCS#11 loading       Refactored windows cert loading       Refactored load certificate functions       Refactored private key loading code       Refactored external key loading from management       Refactored CA and extra certs code       Refactored cipher restriction code       Refactored tls_options, key_state, and key_source data structures       Refactored initalisation of key_states       Refactored key_state free code       Refactored print_details       Refactored key_state read code (including bio_read())       Refactored key_state write functions       Refactored: Moved BIO debug functions to OpenSSL backend       Refactored: removed ks and ks_lame macro for clarity       Refactored: moved write_empty_string function back       Refactored Doxygen for tls_multi functions       Migrated data structures needed by verification functions to ssl_common.h       Refactored client_config_dir_exclusive function       Refactored certificate hash lock checks       Refactored common name locking functions       Refactored username and password authentication code       Add some extra comments       Refactored: split verify_callback into two parts       Added function to extract and verify the subject from a certificate       Added function to verify and extract the username       Refactored: removed global x509_username_field       Refactored: separated environment setup during verification       Refactored: Netscape certificate type verification       Refactored key usage verification code       Refactored EKU verification       Refactored tls-remote checking       Refactored tls-verify-plugin code       Refactored tls-verify script code       Refactored CRL checks       Minor cleanup in verify_cert:       Refactored: Moved verify_cert to ssl_verify       Cleaned up ssl.h       Refactored: made M_SSL dependent on USE_OPENSSL       Refactored: renamed X509 functions from verify_*       Separated OpenSSL-specific parts of the PKCS#11 driver       Modified base64 code in preparation for PolarSSL merge       Final cleanup before PolarSSL addition:       Refactored X509 track feature to be contained within the openssl backend       Added PolarSSL support:       Fixed a missing include in ssl_backend.h       Fixed a bug in the hash generation in ssl_verify_openssl.c       Added SHA_DIGEST_SIZE definition       Changed PolarSSL crypto backend to support v0.99-pre5       Updated ssl_polarssl.c to work with 0.99-pre5       Fixed a compilation warning for size_t key sizes       Added a warning that the PolarSSL library does not support pkcs12 files.       Added warning that --capath is not available with PolarSSL       Disable CryptoAPI when not using OpenSSL, and document that fact.       Removed support for management external keys in PolarSSL       Removed stray X509_free from ssl.c       Refactored (and disabled for PolarSSL) support for writing external cert files in scripts       Added an extra define to allow building without PKCS#11       Added SSL library to title string       Disabled X.509 track and username selection for PolarSSL       Hardening: periodically reset the PRNG's nonce value       Fixes for the plugin system:       Further improvements to plugin support:       Fixed an unintentional change in the options calculated key size.       Moved print messages back to generic crypto.c from cipher backends       Moved HMAC prints back to main crypto module       Added back checks for ks->authenticated in verify_user_pass       Moved gc_new and gc_free to begin end of function       Fixed a bug in the return value of ssl_verify when pre_verify failed       Unified verification function return values:       Removed a stray Fox-IT tag       Fixed a typo: print the subject instead of the serial for verification errors       Made SSL_CIPHER const in print_details, to fix warning       Moved to PolarSSL 1.0.0:       Added missing #ifdef to allow --disable-managent to work again       Fixed disabling crypto and SSL       Got rid of a few magic numbers in ntlm.c       Removed obsolete des_cblock and des_keyschedule       Further removal of des_old.h based calls       Fixed missing comma in plugin.h       Moved prng_uninit out of crypto_uninit_lib       Moved CryptoAPI header include to the ssl_openssl.c       Reordered functions to ensure warning-free Windows build       Added options to switch between OpenSSL and PolarSSL and PKCS11...       Moved from strsep to strtok, for Windows compatibility       Minor cleanup to enable warning-free Windows build:       Fixed a typo when initialising cryptoapi certs       Minor code cleanup: cleaned up error handling in verify_cert.       Moved out of memory prototype to error.h, as the definition is in error.c       Removed support for calling gc_malloc with a NULL gc_arena struct       (The follwing patches from Adriaan was mistakenly merged with        the wrong commit author in the git tree)       Doxygen: Added data channel crypto docs       Added control channel crypto docs       Added compression docs       Added reliability layer documentation       Added memory management documentation       Added data channel fragmentation docs       Added main/control docs       Moved doxygen-specific files to a separate directory Byron Ellacott (1):       autoconf fixes for building on OSX David Sommerseth (50):       Provide 'dev_type' environment variable to plug-ins and script hooks       Define the new openvpn_plugin_{open,func}_v3() API       Implement the core v3 plug-in function calls.       Extend the v3 plug-in API to send over X509 certificates       Added a simple plug-in demonstrating the v3 plug-in API.       Separate the general plug-in version constant and v3 plug-in structs version       Use a version-less version identifier on the master branch       Fix the --client-cert-not-required feature       Change the default --tmp-dir path to a more suitable path       Improve the mysprintf() issue in openvpnserv.c       Add a simple comment regarding openvpn_snprintf() is duplicated       Merge branch 'feat_ipv6_transport'       Merge branch 'feat_ipv6_payload'       Merge branch 'svn-branch-2.1' into merge       Solved hidden merge conflicts between master and svn-branch-2.1       Fix const declarations in plug-in v3 structs       Merge remote-tracking branch 'cron2/feat_ipv6_payload_2.3'       Don't define ENABLE_PUSH_PEER_INFO if SSL is not available       Fix compiling issues with pkcs11 when --disable-management is configured       Remove support for Linux 2.2 configuration fallback       Revert "Add new openssl.cnf to easy-rsa/Windows"       Merge remote branch SVN 2.1 into the git tree       Merge branch 'svn-merger'       Fix Microsoft Visual Studio incompatibility in plugin.c       Fixed compile issues on FreeBSD and Solaris       Fix PolarSSL and --pkcs12 option issues       Fix FreeBSD/OpenBSD/NetBSD compiler warnings in get_default_gateway()       Make '--win-sys env' default       Do some file/directory tests before really starting openvpn       Fix bug after removing Linux 2.2 support       Don't look for 'stdin' file when using --auth-user-pass       Fix compiling with --disable-crypto and/or --disable-ssl       Fix a couple of issues in openvpn_execve()       Move away from openvpn_basename() over to platform provided basename()       Enable access() when building in Visual Studio       New Windows build fixes       Fix compilation errors on Linux platforms without SO_MARK       autotools ./configure don't like compat.h       Fix pool logging when IPv6 is not enabled       Don't check for file presence on inline files       Add --route-pre-down/OPENVPN_PLUGIN_ROUTE_PREDOWN script/plug-in hook       Enhance the error handling in _openssl_get_subject()       Fix assert() situations where gc_malloc() is called without a gc_arena object       Fix compile issues when plug-ins are disabled.       Remove --show-gateway if debug info is not enabled (--disable-debug)       Fix compile issues with status.c       Connection entry {tun,link}_mtu_defined not set correctly       Makefile.am referenced a now non-existing config-win32.h       Makefile.am was missing ssl_common.h       Revamp check_file_access() checks in stdin scenarios Davide Guerri (1):       New feauture: Add --stale-routes-check Frank de Brabander (1):       Fixed wrong return type of cipher_kt_mode Frederic Crozat (1):       Add support to forward console query to systemd Gert Doering (45):       Add more detailed explanation regarding the function of "--rdns-internal"       Enable IPv6 Payload in OpenVPN p2mp tun server mode.  20100104-1 release.       remove NOTES file from commit - private scribbling       NetBSD fixes - on 4.0 and up, use multi-af mode.       new feature: "ifconfig-ipv6-push" (from ccd/ config)       add some TODOs to TODO.IPv6       undo accidential duplication of existing "--iroute" line in the help text       basic documentation of IPv6 related options and their syntax       Enable IPv6 Payload in OpenVPN p2mp tun server mode.       remove NOTES file from commit - private scribbling       env_block(): if PATH is not set, add standard PATH setting to env       add IPv6 route add / route delete code for windows (using "netsh")       - Win32 IPv6 ifconfig support, using "netsh" calls       drop "book ipv6" from open_tun() and tuncfg() prototypes       document recent changes and open TODOs, adapt --version info, tag release       Win32: set next-hop for IPv6 routes according to TUN/TAP mode       when deleting a route on win32, also add gateway address       WIN32: if IPv6 requested in TUN mode, check if TUN/TAP driver < 9.7       revert unconditionally-enabling of setenv_es() logging       implement IPv6 ifconfig + route setup/deletion on OpenBSD       full "VPN client connect" test framework for OpenVPN t_client.rc-sample       renamed t_client.sh to t_client.sh.in       2.2-beta3 has a signed TAP driver with the IPv6 code - test for 9.8       correct URL for "more information about IPv6 patch is *here*"       bugfix for linux/iproute2: IPv6 ifconfig code block was not called for "dev tun"+"topology subnet"       bump IPv6 version number (openvpn --version) to 20100922-1       Implement "ipv6 ifconfig" for TAP interfaces on Solaris interfaces       rebased to 2.2RC2 (beta 2.2 branch)       Windows IPv6 cleanup - properly remove IPv6 routes and interface config       For all accesses to "struct route_list * rl", check first that rl is non-NULL       Replace 32-bit-based add_in6_addr() implementation by an 8-bit based one       Platform cleanup for NetBSD       Move block for "stale-routes-check" config inside #ifdef P2MP_SERVER block       add missing break between "case IPv4" and "case IPv6"       bump tap driver version from 9.8 to 9.9       log error message and exit for "win32, tun mode, tap driver version 9.8"       work around inet_ntop/inet_pton problems for MSVC builds on WinXP       Fix build-up of duplicate IPv6 routes on reconnect.       Fix list-overrun checks in copy_route_[ipv6_]option_list()       add "print test titles" and "use sudo" functionality to t_client.rc       Platform cleanup for FreeBSD       Implement IPv6 interface config with non-/64 prefix lengths.       Fix RUN_SUDO functionality for t_client.sh       Document IPv6-related environment variables.       Platform cleanup for OpenBSD Gisle Vanem (1):       Avoid re-defining uint32_t when using mingw compiler Gustavo Zacarias (1):       Fix compile issues when using --enable-small and --disable-ssl/--disable-crypto Heiko Hund (16):       add .gitignore to official repository       remove function is_proto_tcp()       remove legacy code to query IE proxy information       lowercase include header name in syshead.h       define IN6_ARE_ADDR_EQUAL macro for WIN32       add --mark option to set SO_MARK sockopt       Windows UTF-8 input/output       UTF-8 X.509 distinguished names       set Windows environment variables as UCS-2       handle Windows unicode paths       replace check for TARGET_WIN32 with WIN32       do not use mode_t on Windows       use the underscore version of stat on Windows       make MSVC link against shell32 as well       move variable declaration to top of function       define access mode flag X_OK as 0 on Windows Igor Novgorodov (1):       The code blocks enabled by ENABLE_CLIENT_CR depends on management James Yonan (57):       Added "management-external-key" option.       Minor addition of logging info before and after execution of Windows net commands.       Misc fixes to r6708.       Added --x509-track option.       * added --management-up-down option to allow management interface to be notified of tunnel up/down events.       Fixed minor compile issue triggered on builds where MANAGEMENT_DEF_AUTH is not enabled.       Implemented get_default_gateway_mac_addr for Mac OS X       Fixes to r6925.       Properly handle certificate serial numbers > 32 bits.       Added "client-nat" option for stateless, one-to-one NAT on the client side.       Renamed branch to reflect that it is no longer beta.       env_filter_match now includes the serial number of all certs       Fixed issue where a client might receive multiple push replies from a server       Fixed bug introduced in r7031 that might cause this error message:       Extended "client-kill" management interface command (server-side)       Client will now try to reconnect if no push reply received within handshake-window seconds.       Version 2.1.3n       Fixed compiling issues when using --disable-crypto       Added "management-external-key" option.       Misc fixes to r6708.       win/sign.py now accepts an optional tap-dir argument.       Added "auth-token" client directive       Added ./configure --enable-osxipconfig option for Mac OS X       Added more packet ID debug info at debug level 3 for debugging false positive packet replays.       Fixed bug that incorrectly placed stricter TCP packet replay rules on UDP sessions       Fixed bug in port-share that could cause port share process to crash       For Mac OSX, when DARWIN_USE_IPCONFIG is defined, retry ipconfig command on failure       Version 2.1.3t       Revert r7092 and r7151, i.e. remove --enable-osxipconfig configure option.       Added 'dir' flag to "crl-verify" (see man page for info).       Added new "extra-certs" and "verify-hash" options       Fixed compile issues on Windows.       Added --enable-lzo-stub configure option to build an OpenVPN client without LZO       Added optional journal directory argument to "port-share" directive       Reduce log verbosity at level 3, with a focus on removing excessive log verbosity generated by port-share activity.       env_filter_match now includes the serial number of all certs in chain       Added support for static challenge/response protocol.       r7316 fixes.       Added redirect-gateway block-local flag, with support for Linux, Mac OS X       Extended x509-track to allow SHA1 certificate hash to be extracted       Added "management-query-remote" directive (client) to allow the management interface to override the "remote" directive.       Version 2.1.5.       Fixed MSVC compile error related to r7408.       Redact "echo" directive strings from log, since these strings (going forward) could conceivably contain security-sensitive data.       Modified sanitize_control_message to remove redacted data from control string rather than blotting it out with "_" chars.       Changed CC_PRINT character class to allow UTF-8 chars.       Increased the --verb threshold for "PID_ERR replay" messages to 4 from 3.       Fixed issue where redirect-gateway block-local code was not correctly calculating...       CC_PRINT character class now allows any 8-bit character value >= 32.       "status" management interface command (version >= 2) will now include the username for each connected user.       Minor fix to CC_PRINT char class       Fixed management interface bug where >FATAL notifications were not being output properly       Raised D_PID_DEBUG_LOW from level 3 to 4 to reduce replay error verbosity at level 3.       Added "memstats" option to maintain real-time operating stats in a memory-mapped file.       Fixed client issues with DHCP Router option extraction/deletion when using layer 2 with DHCP proxy:       Allow "tap-win32 dynamic <offset>" to be used in topology subnet mode.       Added support for "on-link" routes on Linux client Jan Just Keijser (1):       Made some options connection-entry specific Joe Patterson (1):       common_name passing in auth_pam plugin JuanJo Ciarlante (40):       * rebased openvpn-2.1_rc1b.jjo.20061206.d.patch       * created getaddr6(), use it from resolve_remote()       * migrated all getaddrinfo() to getaddr6       * socket.c: use USE_PF_INET6 in switch constructs to actually toss them out,       * support --disable-ipv6 build properly:       * important fix for tcp6 reconnection was incorrectly creating a PF_INET socket       * added README.ipv6.txt       * fixed win32 non-ipv6 build       * ipv6 on win32 "milestone": 1st snapshot that passes all unittests       * document ipv6 milestone status       * doc update w/unittests results       * make possible to x-compile openvpn/win32 in Linux       * correctly setup hints.ai_socktype for getaddrinfo(), althought sorta hacky, see TODO.ipv6.       * renamed README.ipv6{.txt,}       * updated {README,TODO}.ipv6 from feedback at openvpn-devel mlist       * init.c: document the ENABLE_MANAGEMENT place to work on       * init.c: small in-doc tweaks       * fix multi-tcp crash (corrected assertion)       * TODO.ipv6 update       * socket.c: better buf logic in print_sockaddr_ex       * fixed segfault for undef address family in print_sockaddr_ex (thanks Marcel!)       * doc updates       * openbsd: no IFF_MULTICAST, #ifdef around it       * no new funcionality, just small cleanups       * (prototype) fix for supporting "redirect-gateway" for tunneled ipv4 over ipv6 endpoints       * polished redirect-gateway (ipv4 on ipv6 endpoints) support       * updated doc       * fix --disable-ipv6 build       * doc updates       * rebased to v2.1.1 release       * undo mroute.c changes related to ipv6 payload       * fix --multihome for ipv4       * fix --multihome for ipv6       * ipv6-0.4.14: fix xinetd usage       * ipv6-0.4.15: add --multihome support to xBSD       * ipv6-0.4.15b: rebase over openvpn-testing-master       * ipv6-0.4.16: fix mingw32 build       * make ipv6_payload compile under windowze       USE_PF_INET6 by default for v2.3       fix ipv6 compilation under macosx >= 1070 - v3 Markus Koetter (1):       Add extv3 X509 field support to --x509-username-field Matthew L. Creech (1):       Fix 2.2.0 build failure when management interface disabled Matthias Andree (1):       Skip rather than fail test in addressless FreeBSD jails. Robert Fischer (8):       Update man page with info about --capath       Update man page with info about --connect-timeout       Added info about --show-proxy-settings       Documented --x509-username-field option       Documented --errors-to-stderr option       Documented --push-peer-info option       Update man page with info about --remote-random-hostname       Added man page entry for --management-client Samuli Seppänen (19):       Add man page entry for --redirect-private       Change all CRLF linefeeds to LF linefeeds       Fix a bug in devcon source code handling       Removed Win2k from supported platforms list in INSTALL and win/openvpn.nsi       Fixed copying of tapinstall.exe to dist/bin when using prebuilt TAP-drivers       Fixed a bug with GUI icon deletion on upgrade from 2.2-RC or earlier       Fix a build-ca issue on Windows       Add new openssl.cnf to easy-rsa/Windows       Updated "easy-rsa" for OpenSSL 1.0.0       Made domake-win builds to use easy-rsa/2.0/openssl-1.0.0.cnf       Fixes to easy-rsa/2.0       Merged TODO.IPv6 with TODO.ipv6 and README.IPv6 with README.ipv6       Fixed a number of fatal build errors on Visual Studio 2008       Fix a Visual Studio 2008 build issue in socket.c       Additional Visual Studio 2008 build fixes to tun.c       Fixed a typo in win32.h that prevented building with Visual Studio       Fixed a regression causing VS2008/Python build failure       Fix a Visual Studio 2008 build error in tun.c       Fix a Visual Studio 2008 build error in options.c Simon Matter (1):       Fix issues with some older GCC compilers Stefan Hellermann (2):       plugin.h: update prototype of plugin_call dummy in !ENABLE_PLUGIN case       Fixed typo in plugin.h chantra (1):       Clarify --tmp-dir option smos (1):       Change the netsh.exe command from "add" to "set". 2011.12.25 -- Version 2.x-master James Yonan (1):       Added support for "on-link" routes on Linux client -- these are       routes where the gateway is specified as an interface rather than       an address.  This allows redirect-gateway to work on Linux clients       whose connection to the internet is via a point-to-point link       such as PPP.       Note that at the moment, this capability is incompatible with       the "redirect-gateway block-local" directive -- this is because       the block-local directive blocks all traffic from the local LAN       except for the local and gateway addresses.  Since a PPP link       is essentially a subnet of two addresses, local and remote (i.e.       gateway), the set of addresses that would be blocked by block-local       is empty.  Therefore, the "redirect-gateway block-local" directive       will be ignored on PPP links.       To view the OpenVPN client's current determination of the default       gateway, use this command:         ./openvpn --show-gateway 2011.03.24 -- Version 2.2-RC2 Alon Bar-Lev (1):       Windows cross-compile cleanup David Sommerseth (2):       Open log files as text files on Windows       Clarify default value for the --inactive option. Gert Doering (1):       Implement IPv6 in TUN mode for Windows TAP driver. Samuli Seppänen (6):       Added support for prebuilt TAP-drivers. Automated embedding manifests.       Fixes to win/openvpn.nsi       Replaced config-win32.h with win/config.h.in       Updated INSTALL-win32.txt       Fixes to Makefile.am       Clarified --client-config-dir section on the man-page. Ville Skyttä (1):       Fix line continuation in chkconfig init script description. 2011.02.28 -- Version 2.2-RC David Sommerseth (3):       Make the --x509-username-field feature an opt-in feature       Fix compiler warning when compiling against OpenSSL 1.0.0       Fix packaging of config-win32.h and service-win32/msvc.mak James Yonan (1):       Minor addition of logging info before and after execution of Windows net commands. Matthias Andree (1):       Change variadic macros to C99 style. Samuli Seppänen (15):       Added ENABLE_PASSWORD_SAVE to config-win32.h       Added a nmake makefile for openvpnserv.exe building       Moved TAP-driver version info to version.m4. Cleaned up win/settings.in.       Added helper functionality to win/wb.py       Added support for viewing config-win32.h paramters to win/show.py       Added comments and made small modifications to win/msvc.mak.in       Added command-line switch to win/build_all.py to skip TAP driver building       Added configure.h and version.m4 variable parsing to win/config.py       Added openvpnserv.exe building to win/build.py       Added comments to win/build_ddk.py       Several modifications to win/make_dist.py to allow building the NSI installer       Copied install-win32/setpath.nsi to win/setpath.nsi       Added first version of NSI installer script to win/openvpn.nsi       Changes to buildsystem patchset       Temporary snprintf-related fix to service-win32/openvpnserv.c 2010.11.25 -- Version 2.2-beta5 Samuli Seppänen (1):       Fixed an issue causing a build failure with MS Visual Studio 2008. 2010.11.18 -- Version 2.2-beta4 David Sommerseth (10):       Clarified --explicit-exit-notify man page entry       Clean-up: Remove pthread and mutex locking code       Clean-up: Remove more dead and inactive code paths       Clean-up: Removing useless code - hash related functions       Use stricter snprintf() formatting in socks_username_password_auth() (v3)       Fix compiler warnings about not used dummy() functions       Fixed potential misinterpretation of boolean logic       Only add some functions when really needed       Removed functions not being used anywhere       Merged add_bypass_address() and add_host_route_if_nonlocal() Gert Doering (3):       Integrate support for TAP mode on Solaris, written by Kazuyoshi Aizawa <admin2@whiteboard.ne.jp>.       Make "topology subnet" work on Solaris       Improved man page entry for script_type James Yonan (5):       Fixed initialization bug in route_list_add_default_gateway (Gert Doering).       Implement challenge/response authentication support in client mode       Make base64.h have the same conditional compilation expression as base64.c.       Fixed compiling issues when using --disable-crypto       In verify_callback, the subject var should be freed by OPENSSL_free, not free Jesse Young (1):       Remove hardcoded path to resolvconf Lars Hupel (1):       Add HTTP/1.1 Host header Pierre Bourdon (1):       Adding support for SOCKS plain text authentication Samuli Seppänen (2):       Added check for variable CONFIGURE_DEFINES into options.c       Added command-line option parser and an unsigned build option to build_all.py 2010.08.21 -- Version 2.2-beta3 * Attempt to fix issue where domake-win build system was not properly   signing drivers and .exe files.   Added win/tap_span.py for building multiple versions of the TAP driver   and tapinstall binaries using different DDK versions to span from Win2K   to Win7 and beyond. * Community patches   David Sommerseth (2):       Test framework improvment - Do not FAIL if t_client.rc is missing       More t_client.sh updates - exit with SKIP when we want to skip   Gert Doering (4):       Fix compile problems on NetBSD and OpenBSD       Fix <net/if.h> compile time problems on OpenBSD for good       full "VPN client connect" test framework for OpenVPN       Build t_client.sh by configure at run-time.   chantra (1):       Fixes openssl-1.0.0 compilation warning 2010.08.16 -- Version 2.2-beta2 * Windows security issue:   Fixed potential local privilege escalation vulnerability in   Windows service. The Windows service did not properly quote the   executable filename passed to CreateService.  A local attacker   with write access to the root directory C:\ could create an   executable that would be run with the same privilege level as   the OpenVPN Windows service.  However, since non-Administrative   users normally lack write permission on C:\, this vulnerability   is generally not exploitable except on older versions of Windows   (such as Win2K) where the default permissions on C:\ would allow   any user to create files there.   Credit:  Scott Laurie, MWR InfoSecurity * Added Python-based based alternative build system for Windows using   Visual Studio 2008 (in win directory). * 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. 2009.12.11 -- Version 2.1.1 * Fixed some breakage in openvpn.spec (which is required to build an   RPM distribution) where it was referencing a non-existent   subdirectory in the tarball, causing it to fail (patch from   David Sommerseth). 2009.12.11 -- Version 2.1.0 * Fixed a couple issues in sample plugins auth-pam.c and down-root.c.   (1) Fail gracefully rather than segfault if calloc returns NULL.   (2) The openvpn_plugin_abort_v1 function can potentially be called   with handle == NULL.  Add code to detect this case, and if  so, avoid   dereferencing pointers derived from handle  (Thanks to David   Sommerseth for finding this bug). * Documented "multihome" option in the man page. 2009.11.20 -- Version 2.1_rc22 * Fixed a client-side bug on Windows that occurred when the   "dhcp-pre-release" or "dhcp-renew" options were combined with   "route-gateway dhcp".  The release/renew would not occur   because the Windows DHCP renew function is blocking and   therefore must be called from another process or thread   so as not to stall the tunnel. * Added a hard failure when peer provides a certificate chain   with depth > 16.  Previously, a warning was issued. 2009.11.12 -- Version 2.1_rc21 * Rebuilt OpenVPN Windows installer with OpenSSL 0.9.8l to address   CVE-2009-3555.  Note that OpenVPN has never relied on the session   renegotiation capabilities that are built into the SSL/TLS protocol,   therefore the fix in OpenSSL 0.9.8l (disable SSL/TLS renegotiation   completely) will not adversely affect OpenVPN mid-session SSL/TLS   renegotation or any other OpenVPN capabilities. * Added additional session renegotiation hardening.  OpenVPN has always   required that mid-session renegotiations build up a new SSL/TLS   session from scratch.  While the client certificate common name is   already locked against changes in mid-session TLS renegotiations, we   now extend this locking to the auth-user-pass username as well as all   certificate content in the full client certificate chain. 2009.10.01 -- Version 2.1_rc20 * Fixed a bug introduced in 2.1_rc17 (svn r4436) where using the   redirect-gateway option by itself, without any extra parameters,   would cause the option to be ignored. * Fixed build problem when ./configure --disable-server is used. * Fixed ifconfig command for "topology subnet" on FreeBSD (Stefan Bethke). * Added --remote-random-hostname option. * Added "load-stats" management interface command to get global server   load statistics. * Added new ./configure flags:   --disable-def-auth      Disable deferred authentication   --disable-pf            Disable internal packet filter * Added "setcon" directive for interoperability with SELinux (Sebastien   Raveau). * Optimized PUSH_REQUEST handshake sequence to shave several seconds   off of a typical client connection initiation. * The maximum number of "route" directives (specified in the config   file or pulled from a server) can now be configured via the new   "max-routes" directive. * Eliminated the limitation on the number of options that can be pushed   to clients, including routes.  Previously, all pushed options needed   to fit within a 1024 byte options string. * Added --server-poll-timeout option : when polling possible remote   servers to connect to in a round-robin fashion, spend no more than   n seconds waiting for a response before trying the next server. * Added the ability for the server to provide a custom reason string   when an AUTH_FAILED message is returned to the client.  This   string can be set by the server-side managment interface and read   by the client-side management interface. * client-kill management interface command, when issued on server, will   now send a RESTART message to client.   This feature is intended to make UDP clients respond the same as TCP   clients in the case where the server issues a RESTART message in   order to force the client to reconnect and pull a new options/route   list. 2009.07.16 -- Version 2.1_rc19 * In Windows TAP driver, refactor DHCP/ARP packet injection code to   use a DPC (deferred procedure call) to defer packet injection until   IRQL < DISPATCH_LEVEL, rather than calling NdisMEthIndicateReceive   in the context of AdapterTransmit.  This is an attempt to reduce kernel   stack usage, and prevent EXCEPTION_DOUBLE_FAULT BSODs that have been   observed on Vista.  Updated TAP driver version number to 9.6. * In configure.ac, use datadir instead of datarootdir for compatibility   with <autoconf-2.60. 2009.06.07 -- Version 2.1_rc18 * Fixed compile error on ./configure --enable-small * Fixed issue introduced in r4475 (2.1-rc17) where cryptoapi.c change   does not build on Windows on non-MINGW32. 2009.05.30 -- Version 2.1_rc17 * Reduce the debug level (--verb) at which received management interface   commands are echoed from 7 to 3.  Passwords will be filtered. * Fixed race condition in management interface recv code on   Windows, where sending a set of several commands to the   management interface in quick succession might cause the   latter commands in the set to be ignored. * Increased management interface input command buffer size   from 256 to 1024 bytes. * Minor tweaks to Windows build system. * Added "redirect-private" option which allows private subnets   to be pushed to the client in such a way that they don't accidently   obscure critical local addresses such as the DHCP server address and   DNS server addresses. * Added new 'autolocal' redirect-gateway flag.  When enabled, the OpenVPN   client will examine the routing table and determine whether (a) the   OpenVPN server is reachable via a locally connected interface, or (b)   traffic to the server must be forwarded through the default router.   Only add a special bypass route for the OpenVPN server if (b) is true.   If (a) is true, behave as if the 'local' flag is specified, and do not   add a bypass route.   The new 'autolocal' flag depends on the non-portable test_local_addr()   function in route.c, which is currently only implemented for Windows.   The 'autolocal' flag will act as a no-op on platforms that have not   yet defined a test_local_addr() function. * Increased TLS_CHANNEL_BUF_SIZE to 2048 from 1024 (this will allow for   more option content to be pushed from server to client). * Raised D_MULTI_DROPPED debug level to 4 from 3 to filter out (at debug   levels <=3) a common and usually innocuous warning. * Fixed issue of symbol conflicts interfering with Windows CryptoAPI   functionality (Alon Bar-Lev). * Fixed bug where the remote_X environmental variables were not being   set correctly when the 'local' option is specifed. 2009.05.17 -- Version 2.1_rc16 * Windows installer changes:   1. ifdefed out the check Windows version code which is causing   problems on Windows 7   2. don't define SF_SELECTED if it is already defined   3. Use LZMA instead of BZIP2 compression for better compression   4. Upgraded OpenSSL to 0.9.8k * Added the ability to read the configuration file   from stdin, when "stdin" is given as the config   file name. * Allow "management-client" directive to be used   with unix domain sockets. * Added errors-to-stderr option.  When enabled, fatal errors   that result in the termination of the daemon will be written   to stderr. * Added optional "nogw" (no gateway) flag to --server-bridge   to inhibit the pushing of the route-gateway parameter to   clients. * Added new management interface command "pid" to show the   process ID of the current OpenVPN process (Angelo Laub). * Fixed issue where SIGUSR1 restarts would fail if private   key was specified as an inline file. * Added daemon_start_time and daemon_pid environmental variables. * In management interface, added new ">CLIENT:ESTABLISHED" notification. * Build fixes:   1. Fixed some issues with C++ style comments that leaked into the code.   2. Updated configure.ac to work on MinGW64.   3. Updated common.h types for _WIN64.   4. Fixed issue involving an #ifdef in a macro reference that breaks early gcc      compilers.   5. In cryptoapi.c, renamed CryptAcquireCertificatePrivateKey to      OpenVPNCryptAcquireCertificatePrivateKey to work around      a symbol conflict in MinGW-5.1.4. 2008.11.19 -- Version 2.1_rc15 * Fixed issue introduced in 2.1_rc14 that may cause a   segfault when a --plugin module is used. * Added server-side --opt-verify option: clients that connect   with options that are incompatible with those of the server   will be disconnected (without this option, incompatible   clients would trigger a warning message in the server log   but would not be disconnected). * Added --tcp-nodelay option: Macro that sets TCP_NODELAY socket   flag on the server as well as pushes it to connecting clients. * Minor options check fix: --no-name-remapping is a   server-only option and should therefore generate an   error when used on the client. * Added --prng option to control PRNG (pseudo-random   number generator) parameters.  In previous OpenVPN   versions, the PRNG was hardcoded to use the SHA1   hash.  Now any OpenSSL hash may be used.  This is   part of an effort to remove hardcoded references to   a specific cipher or cryptographic hash algorithm. * Cleaned up man page synopsis. 2008.11.16 -- Version 2.1_rc14 * Added AC_GNU_SOURCE to configure.ac to enable struct ucred,   with the goal of fixing a build issue on Fedora 9 that was   introduced in 2.1_rc13. * Added additional method parameter to --script-security to preserve   backward compatibility with system() call semantics used in OpenVPN   2.1_rc8 and earlier.  To preserve backward compatibility use:     script-security 3 system * Added additional warning messages about --script-security 2   or higher being required to execute user-defined scripts or   executables. * Windows build system changes:   Modified Windows domake-win build system to write all openvpn.nsi   input files to gen, so that gen can be disconnected from   the rest of the source tree and makensis openvpn.nsi will   still function correctly.   Added additional SAMPCONF_(CA|CRT|KEY) macros to settings.in   (commented out by default).   Added optional files SAMPCONF_CONF2 (second sample configuration   file) and SAMPCONF_DH (Diffie-Helman parameters) to Windows   build system, and may be defined in settings.in. * Extended Management Interface "bytecount" command   to work when OpenVPN is running as a server.   Documented Management Interface "bytecount" command in   management/management-notes.txt. * Fixed informational message in ssl.c to properly indicate   deferred authentication. * Added server-side --auth-user-pass-optional directive, to allow   connections by clients that do not specify a username/password, when a   user-defined authentication script/module is in place (via   --auth-user-pass-verify, --management-client-auth, or a plugin module). * Changes to easy-rsa/2.0/pkitool and related openssl.cnf:   Calling scripts can set the KEY_NAME environmental variable to set   the "name" X509 subject field in generated certificates.   Modified pkitool to allow flexibility in separating the Common Name   convention from the cert/key filename convention.   For example:   KEY_CN="James's Laptop" KEY_NAME="james" ./pkitool james   will create a client certificate/key pair of james.crt/james.key   having a Common Name of "James's Laptop" and a Name of "james". * Added --no-name-remapping option to allow Common Name, X509 Subject,   and username strings to include any printable character including   space, but excluding control characters such as tab, newline, and   carriage-return (this is important for compatibility with external   authentication systems).   As a related change, added --status-version 3 format (and "status 3"   in the management interface) which uses the version 2 format except   that tabs are used as delimiters instead of commas so that there   is no ambiguity when parsing a Common Name that contains a comma.   Also, save X509 Subject fields to environment, using the naming   convention:   X509_{cert_depth}_{name}={value}   This is to avoid ambiguities when parsing out the X509 subject string   since "/" characters could potentially be used in the common name. * Fixed some ifconfig-pool issues that precluded it from being combined   with --server directive.   Now, for example, we can configure thusly:     server 10.8.0.0 255.255.255.0 nopool     ifconfig-pool 10.8.0.2 10.8.0.99 255.255.255.0   to have ifconfig-pool manage only a subset   of the VPN subnet. * Added config file option "setenv FORWARD_COMPATIBLE 1" to relax   config file syntax checking to allow directives for future OpenVPN   versions to be ignored. 2008.10.07 -- Version 2.1_rc13 * Bundled OpenSSL 0.9.8i with Windows installer. * Management interface can now listen on a unix   domain socket, for example:     management /tmp/openvpn unix   Also added management-client-user and management-client-group   directives to control which processes are allowed to connect   to the socket. * Copyright change to OpenVPN Technologies, Inc. 2008.09.23 -- Version 2.1_rc12 * Patched Makefile.am so that the new t_cltsrv-down.sh script becomes   part of the tarball (Matthias Andree). * Fixed --lladdr bug introduced in 2.1-rc9 where input validation code   was incorrectly expecting the lladdr parameter to be an IP address   when it is actually a MAC address (HoverHell). 2008.09.14 -- Version 2.1_rc11 * Fixed a bug that can cause SSL/TLS negotiations in UDP mode   to fail if UDP packets are dropped. 2008.09.10 -- Version 2.1_rc10 * Added "--server-bridge" (without parameters) to enable   DHCP proxy mode:  Configure server mode for ethernet   bridging using a DHCP-proxy, where clients talk to the   OpenVPN server-side DHCP server to receive their IP address   allocation and DNS server addresses. * Added "--route-gateway dhcp", to enable the extraction   of the gateway address from a DHCP negotiation with the   OpenVPN server-side LAN. * Fixed minor issue with --redirect-gateway bypass-dhcp or bypass-dns   on Windows.  If the bypass IP address is 0.0.0.0 or 255.255.255.255,   ignore it. * Warn when ethernet bridging that the IP address of the bridge adapter   is probably not the same address that the LAN adapter was set to   previously. * When running as a server, warn if the LAN network address is   the all-popular 192.168.[0|1].x, since this condition commonly   leads to subnet conflicts down the road. * Primarily on the client, check for subnet conflicts between   the local LAN and the VPN subnet. * Added a 'netmask' parameter to get_default_gateway, to return   the netmask of the adapter containing the default gateway.   Only implemented on Windows so far.  Other platforms will   return 255.255.255.0.  Currently the netmask information is   only used to warn about subnet conflicts. * Minor fix to cryptoapi.c to not compile itself unless USE_CRYPTO   and USE_SSL flags are enabled (Alon Bar-Lev). * Updated openvpn/t_cltsrv.sh (used by "make check") to conform to new   --script-security rules.  Also adds retrying if the addresses are in   use (Matthias Andree). * Fixed build issue with ./configure --disable-socks --disable-http. * Fixed separate compile errors in options.c and ntlm.c that occur   on strict C compilers (such as old versions of gcc) that require   that C variable declarations occur at the start of a {} block,   not in the middle. * Workaround bug in OpenSSL 0.9.6b ASN1_STRING_to_UTF8, which   the new implementation of extract_x509_field_ssl depends on. * LZO compression buffer overflow errors will now invalidate   the packet rather than trigger a fatal assertion. * Fixed minor compile issue in ntlm.c (mid-block declaration). * Added --allow-pull-fqdn option which allows client to pull DNS names   from server (rather than only IP address) for --ifconfig, --route, and   --route-gateway.  OpenVPN versions 2.1_rc7 and earlier allowed DNS names   for these options to be pulled and translated to IP addresses by default.   Now --allow-pull-fqdn will be explicitly required on the client to enable   DNS-name-to-IP-address translation of pulled options. * 2.1_rc8 and earlier did implicit shell expansion on script   arguments since all scripts were called by system().   The security hardening changes made to 2.1_rc9 no longer   use system(), but rather use the safer execve or CreateProcess   system calls.  The security hardening also introduced a   backward incompatibility with 2.1_rc8 and earlier in that   script parameters were no longer shell-expanded, so   for example:     client-connect "docc CLIENT-CONNECT"   would fail to work because execve would try to execute   a script called "docc CLIENT-CONNECT" instead of "docc"   with "CLIENT-CONNECT" as the first argument.   This patch fixes the issue, bringing the script argument   semantics back to pre 2.1_rc9 behavior in order to preserve   backward compatibility while still using execve or CreateProcess   to execute the script/executable. * Modified ip_or_dns_addr_safe, which validates pulled DNS names,   to more closely conform to RFC 3696:   (1) DNS name length must not exceed 255 characters   (2) DNS name characters must be limited to alphanumeric,       dash ('-'), and dot ('.') * Fixed bug in intra-session TLS key rollover that was introduced with   deferred authentication features in 2.1_rc8. 2008.07.31 -- Version 2.1_rc9 * Security Fix -- affects non-Windows OpenVPN clients running   OpenVPN 2.1-beta14 through 2.1-rc8 (OpenVPN 2.0.x clients are NOT   vulnerable nor are any versions of the OpenVPN server vulnerable).   An OpenVPN client connecting to a malicious or compromised   server could potentially receive an "lladdr" or "iproute" configuration   directive from the server which could cause arbitrary code execution on   the client. A successful attack requires that (a) the client has agreed   to allow the server to push configuration directives to it by including   "pull" or the macro "client" in its configuration file, (b) the client   successfully authenticates the server, (c) the server is malicious or has   been compromised and is under the control of the attacker, and (d) the   client is running a non-Windows OS.  Credit: David Wagner.   CVE-2008-3459 * Miscellaneous defensive programming changes to multiple   areas of the code.  In particular, use of the system() call   for calling executables such as ifconfig, route, and   user-defined scripts has been completely revamped in favor   of execve() on unix and CreateProcess() on Windows. * In Windows build, package a statically linked openssl.exe to work around   observed instabilities in the dynamic build since the migration to   OpenSSL 0.9.8h. 2008.06.11 -- Version 2.1_rc8 * Added client authentication and packet filtering capability   to management interface.  In addition, allow OpenVPN plugins   to take advantage of deferred authentication and packet   filtering capability. * Added support for client-side connection profiles. * Fixed unbounded memory growth bug in environmental variable   code that could have caused long-running OpenVPN sessions   with many TLS renegotiations to incrementally   increase memory usage over time. * Windows release now packages openssl-0.9.8h. * Build system changes -- allow building on Windows using   autoconf/automake scripts (Alon Bar-Lev). * Changes to Windows build system to make it easier to do   partial builds, with a reduced set of prerequisites,   where only a subset of OpenVPN installer   components are built.  See ./domake-win comments. * Cleanup IP address for persistence interfaces for tap and also   using ifconfig, gentoo#209055 (Alon Bar-Lev). * Fall back to old version of extract_x509_field for OpenSSL 0.9.6. * Clarified tcp-queue-limit man page entry (Matti Linnanvuori). * Added new OpenVPN icon and installer graphic. * Minor pkitool changes. * Added --pkcs11-id-management option, which will cause OpenVPN to   query the management interface via the new NEED-STR asynchronous   notification query to get additional PKCS#11 options (Alon Bar-Lev). * Added NEED-STR management interface asynchronous query and   "needstr" management interface command to respond to the query   (Alon Bar-Lev). * Added Dragonfly BSD support (Francis-Gudin). * Quote device names before passing to up/down script (Josh Cepek). * Bracketed struct openvpn_pktinfo with #pragma pack(1) to   prevent structure padding from causing an incorrect length   to be returned by sizeof (struct openvpn_pktinfo) on 64-bit   platforms. * On systems that support res_init, always call it   before calling gethostbyname to ensure that   resolver configuration state is current. * Added NTLMv2 proxy support (Miroslav Zajic). * Fixed an issue in extract_x509_field_ssl where the extraction   would fail on the first field of the subject name, such as   the common name in:  /CN=foo/emailAddress=foo@bar.com * Made "Linux ip addr del failed" error nonfatal. * Amplified --client-cert-not-required warning. * Added #pragma pack to proto.h. 2008.01.29 -- Version 2.1_rc7 * Added a few extra files that exist in the svn repo but were   not being copied into the tarball by make dist. * Fixup null interface on close, don't use ip addr flush (Alon Bar-Lev). 2008.01.24 -- Version 2.1_rc6 * Fixed options checking bug introduced in rc5 where legitimate configuration   files might elicit the error: "Options error: Parameter pkcs11_private_mode   can only be specified in TLS-mode, i.e. where --tls-server or --tls-client   is also specified." 2008.01.23 -- Version 2.1_rc5 * Fixed Win2K TAP driver bug that was introduced by Vista fixes,   incremented driver version to 9.4. * Windows build system changes:   Incremented included OpenSSL version to openssl-0.9.7m.   Updated openssl.patch for openssl-0.9.7m and added some   brief usage comments to the head of the patch.   Added build-pkcs11-helper.sh for building the pkcs11-helper   library.   Integrated inclusion of pkcs11-helper into Windows build   system.   Upgraded TAP build scripts to use WDK 6001.17121   (Windows 2008 Server pre-RTM). * Windows installer changes:   Clean up the start menu folder.   Allow for a site-specific sample configuration file and keys   to be included in a custom installer (see SAMPCONF macros   in settings.in).   New icon (temporary). * Added "forget-passwords" command to the management interface   (Alon Bar-Lev). * Added --management-signal option to signal SIGUSR1 when the   management interface disconnects (Alon Bar-Lev). * Modified command line and config file parser to allow   quoted strings using single quotes ('') (Alon Bar-Lev). * Use pkcs11-helper as external library, can be downloaded from   https://www.opensc-project.org/pkcs11-helper (Alon Bar-Lev). * Fixed interim memory growth issue in TCP connect loop where   "TCP: connect to %s failed, will try again in %d seconds: %s"   is output. * Fixed bug in epoll driver in event.c, where the lack of a   handler for EPOLLHUP could cause 99% CPU usage. * Defined ALLOW_NON_CBC_CIPHERS for people who don't   want to use a CBC cipher for OpenVPN's data channel. * Added PLUGIN_LIBDIR preprocessor string to prepend a default   plugin directory to the dlopen search list when the user   specifies the basename of the plugin only (Marius Tomaschewski). * Rewrote extract_x509_field and modified COMMON_NAME_CHAR_CLASS   to allow forward slash characters ("/") in the X509 common name   (Pavel Shramov). * Allow OpenVPN to run completely unprivileged under Linux   by allowing openvpn --mktun to be used with --user and --group   to set the UID/GID of the tun device node.  Also added --iproute   option to allow an alternative command to be executed in place   of the default iproute2 command (Alon Bar-Lev). * Fixed --disable-iproute2 in ./configure to actually disable   iproute2 usage (Alon Bar-Lev). * Added --management-forget-disconnect option -- forget   passwords when management session disconnects (Alon Bar-Lev). 2007.04.25 -- Version 2.1_rc4 * Worked out remaining issues with TAP driver signing   on Vista x64.  OpenVPN will now run on Vista x64   with driver signing enforcement enabled. * Fixed 64-bit portability bug in time_string function   (Thomas Habets). 2007.04.22 -- Version 2.1_rc3 * Additional fixes to TAP driver for Windows x64.  Driver   now runs successfully on Vista x64 if driver signing   enforcement is disabled. * The Windows Installer and TAP driver are now signed by   OpenVPN Solutions LLC (in addition to the usual GnuPG   signatures). * Added OpenVPN GUI (Mathias Sundman version) as install   option in Windows installer. * Clean up configure on FreeBSD for recent autotool versions   that require that all .h files have to be compiled.   Also, FreeBSD install does not support GNU long options   which the Makefile in easy-rsa/2.0 uses (not checked the   others as we don't install those on Gentoo) (Roy Marples). * Added additional scripts to easy-rsa/Windows for working   with password-protected keys; also add -extensions server   option when generating server cert via   build-key-server-pass.bat (Daniel Zauft). 2007.02.27 -- Version 2.1_rc2 * auth-pam change:  link with -lpam rather   than dlopen (Roy Marples). * Prevent SIGUSR1 or SIGHUP from causing program   exit from initial management hold. * SO_REUSEADDR should not be set on Windows TCP sockets   because it will cause bind to succeed on port conflicts. * Added time_ascii, time_duration, and time_unix   environmental variables for plugins and callback   scripts. * Fixed issue where OpenVPN does not apply the --txqueuelen option   to persistent interfaces made with --mktun (Roy Marples). * Attempt at rational signal handling when in the   management hold state.  During management hold, ignore   SIGUSR1/SIGHUP signals thrown with the "signal" command.   Also, "signal" command will now apply remapping as   specified with the --remap-usr1 option.   When a signal entered using the "signal" command from a management   hold is ignored, output: >HOLD:Waiting for hold release * Fixed issue where struct env_set methods that   change the value of an existing name=value pair   would delay the freeing of the memory held by   the previous name=value pair until the underlying   client instance object is closed.   This could cause a server that handles long-term   client connections, resulting in many periodic calls   to verify_callback, to needlessly grow the env_set   memory allocation until the underlying client instance   object is closed. * Renamed TAP-Win32 driver from tap0801.sys to tap0901.sys   to reflect the fact that Vista has blacklisted the tap0801.sys   file name due to previous compatibility issues which have now   been resolved.  TAP-Win32 major/minor version number is now 9/1. * Windows installer will delete a previously installed   tap0801.sys TAP driver before installing tap0901.sys. * Added code to Windows installer to fail gracefully on 64 bit   installs until 64-bit TAP driver issues can be resolved. * Added code to Windows installer to fail gracefully on   versions of Windows which are not explicitly supported. * The Windows version will now use a default route-delay   of 5 seconds to deal with an apparent routing table race   condition on Vista. * Worked around an incompatibility in the Windows Vista   version of CreateIpForwardEntry as described in   http://www.nynaeve.net/?p=59   This issue would cause route additions using the   IP Helper API to fail on Vista. * On Windows, revert to "ip-win32 dynamic" as the default. 2006.10.31 -- Version 2.1_rc1 * Support recovery (return to hold) from signal at   management password prompt. * Added workaround for OpenSC PKCS#11 bug#108   (Alon Bar-Lev). 2006.10.01 -- Version 2.1-beta16 * Windows installer updated with OpenSSL 0.9.7l DLLs to fix   published vulnerabilities. * Fixed TAP-Win32 bug that caused BSOD on Windows Vista   (Henry Nestler). * Autodetect 32/64 bit Windows in installer and install   appropriate TAP driver (Mathias Sundman, Hypherion). * Fixed bug in loopback self-test introduced   in 2.1-beta15 where self test as invoked by   "make check" would not properly exit after   2 minutes (Paul Howarth). 2006.09.12 -- Version 2.1-beta15 * Windows installer updated with OpenSSL 0.9.7k DLLs to fix   RSA Signature Forgery (CVE-2006-4339). * Fixed bug introduced with the --port-share directive   (back in 2.1-beta9 which causes TLS soft resets   (1 per hour by default) in TCP server mode to force   a blockage of tunnel packets and later time-out and   restart the connection. * easy-rsa update (Alon Bar-Lev)   Makefile (install) is now available so that   distribs will be able to install it safely. * PKCS#11 changes: (Alon Bar-Lev)   - Modified ssl.c to not FATAL and return to init.c     so auth-retry will work.   - Modifed pkcs11-helper.c to fix some problem with     multiple providers.   - Added retry counter to PKCS#11 PIN hook.   - Modified PKCS#11 PIN retry loop to return correct error     code when PIN is incorrect.   - Fix handling (ignoring) zero sized attributes.   - Fix gcc-2 issues.   - Fix openssl 0.9.6 (first version) issues. * Minor fixes of lladdr (Alon Bar-Lev)   Updated makefile.w32-vc to include lladdr.*, updated   linkage libraries.   Modified lladdr.c to be compiled under visual C. * Added two new management states:    OPENVPN_STATE_RESOLVE      -- DNS lookup    OPENVPN_STATE_TCP_CONNECT  -- Connecting to TCP server * Echo management state change to log. * Minor syshead.h change for NetBSD to allow   TCP_NODELAY flag to work. * Modified --port-share code to remove the assumption that   CMSG_SPACE always evaluates to a constant, to enable   compilation on NetBSD and possibly other BSDs as well. * Eliminated gcc 3.3.3 warnings on NetBSD   when ./configure --enable-strict is used. * Added optional minimum-number-of-bytes parameter   to --inactive directive. 2006.04.13 -- Version 2.1-beta14 * Fixed Windows server bug in time backtrack handling code which   could cause TLS negotiation failures on legitimate clients. * Rewrote gettimeofday function for Windows to be   simpler and more efficient. * Merged PKCS#11 extensions to easy-rsa/2.0  (Alon Bar-Lev). * Added --route-metric option to set a default route metric   for --route (Roy Marples). * Added --lladdr option to specify the link layer (MAC) address   for the tap interface on non-Windows platforms (Roy Marples). 2006.04.12 -- Version 2.1-beta13 * Code added in 2.1-beta7 and 2.0.6-rc1 to extend byte counters   to 64 bits caused a bug in the Windows version which has now   been fixed.  The bug could cause intermittent crashes. 2006.04.05 -- Version 2.1-beta12 * Security Vulnerability -- An OpenVPN client connecting to a   malicious or compromised server could potentially receive   "setenv" configuration directives from the server which could   cause arbitrary code execution on the client via a LD_PRELOAD   attack.  A successful attack appears to require that (a) the   client has agreed to allow the server to push configuration   directives to it by including "pull" or the macro "client" in   its configuration file, (b) the client configuration file uses   a scripting directive such as "up" or "down", (c) the client   succesfully authenticates the server, (d) the server is   malicious or has been compromised and is under the control of   the attacker, and (e) the attacker has at least some level of   pre-existing control over files on the client (this might be   accomplished by having the server respond to a client web request   with a specially crafted file).  Credit: Hendrik Weimer.   CVE-2006-1629.   The fix is to disallow "setenv" to be pushed to clients from   the server, and to add a new directive "setenv-safe" which is   pushable from the server, but which appends "OPENVPN_" to the   name of each remotely set environmental variable. * "topology subnet" fix for FreeBSD (Benoit Bourdin). * PKCS11 fixes (Alon Bar-Lev).  For full description:   svn log -r990 http://svn.openvpn.net/projects/openvpn/branches/BETA21 * When deleting routes under Linux, use the route metric   as a differentiator to ensure that the route teardown   process only deletes the identical route which was originally   added via the "route" directive (Roy Marples). * Fix the t_cltsrv.sh file in FreeBSD 4 jails   (Matthias Andree, Dirk Meyer, Vasil Dimov). * Extended tun device configure code to support ethernet   bridging on NetBSD (Emmanuel Kasper). 2006.02.19 -- Version 2.1-beta11 * Fixed --port-share bug that caused premature closing   of proxied sessions. 2006.02.17 -- Version 2.1-beta10 * Fixed --port-share breakage introduced in 2.1-beta9. 2006.02.16 -- Version 2.1-beta9 * Added --port-share option for allowing OpenVPN and HTTPS   server to share the same port number. * Added --management-client option to connect as a client   to management GUI app rather than be connected to as a   server. * Added "bytecount" command to management interface. * --remote-cert-tls fixes (Alon Bar-Lev). 2006.01.03 -- Version 2.1-beta8 * --remap-usr1 will now also remap signals thrown during   initialization. * Added --connect-timeout option to control the timeout   on TCP client connection attempts (doesn't work on all   OSes).  This patch also makes OpenVPN signalable during   TCP connection attempts. * Fixed bug in acinclude.m4 where capability of compiler   to handle zero-length arrays in structs is tested   (David Stipp). * Fixed typo in manage.c where inline function declaration   was declared without the "static" keyword (David Stipp). * Patch to support --topology subnet on Mac OS X (Mathias Sundman). * Added --auto-proxy directive to auto-detect HTTP or SOCKS   proxy settings (currently Windows only). * Removed redundant base64 code. * Better sanity checking of --server and --server-bridge   IP pool ranges, so as not to hit the assertion at   pool.c:119 (2.0.5). * Fixed bug where --daemon and --management-query-passwords   used together would cause OpenVPN to block prior to   daemonization. * Fixed client/server race condition which could occur   when --auth-retry interact is set and the initially   provided auth-user-pass credentials are incorrect,   forcing a username/password re-query. * Fixed bug where if --daemon and --management-hold are   used together, --user or --group options would be ignored. * --ip-win32 adaptive is now the default. * --ip-win32 netsh (or --ip-win32 adaptive when in netsh   mode) can now set DNS/WINS addresses on the TAP-Win32   adapter. * Added new option --route-method adaptive (Win32)   which tries IP helper API first, then falls back to   route.exe. * Made --route-method adaptive the default. 2005.11.12 -- Version 2.1-beta7 * Allow blank passwords to be passed via the management   interface. * Fixed bug where "make check" inside a FreeBSD "jail"   would never complete (Matthias Andree). * Fixed bug where --server directive in --dev tap mode   claimed that it would support subnets of /30 or less   but actually would only accept /29 or less. * Extend byte counters to 64 bits (M. van Cuijk). * Fixed bug in Linux get_default_gateway function   introduced in 2.0.4, which would cause redirect-gateway   on Linux clients to fail. * Moved easy-rsa 2.0 scripts to easy-rsa/2.0 to   be compatible with 2.0.x distribution. * Documented --route-nopull. * Documented --ip-win32 adaptive. * Windows build now linked with LZO2. * Allow ca, cert, key, and dh files to be specified   inline via XML-like syntax without needing to   reference an explicit file.   For example:   <ca> data here...   </ca> * Allow plugin and push directives to have multi-line   parameter lists such as:   <plugin>     my-plugin.so     parm1     parm2   </plugin> * Added connect-retry-max option (Alon Bar-Lev). * Fixed problems where signals thrown during initialization   were not returning to a management-hold state. * Added a backtrack-hardened system time algorithm. * Added --remote-cert-ku, --remote-cert-eku, and   --remote-cert-tls options for verifying certificate   attributes (Alon Bar-Lev). * For Windows, reverted --ip-win32 default back to "dynamic".   To use new adaptive mode, set explicitly. 2005.11.01 -- Version 2.1-beta6 * Security fix (merged from 2.0.4) -- Affects non-Windows   OpenVPN clients of version 2.0 or higher which connect to   a malicious or compromised server.  A format string   vulnerability in the foreign_option function in options.c   could potentially allow a malicious or compromised server   to execute arbitrary code on the client.  Only   non-Windows clients are affected.  The vulnerability   only exists if (a) the client's TLS negotiation with   the server succeeds, (b) the server is malicious or   has been compromised such that it is configured to   push a maliciously crafted options string to the client,   and (c) the client indicates its willingness to accept   pushed options from the server by having "pull" or   "client" in its configuration file (Credit: Vade79).   CVE-2005-3393 * Security fix -- (merged from 2.0.4) Potential DoS   vulnerability on the server in TCP mode.  If the TCP   server accept() call returns an error status, the resulting   exception handler may attempt to indirect through a NULL   pointer, causing a segfault.  Affects all OpenVPN 2.0 versions.   CVE-2005-3409 * Fix attempt of assertion at multi.c:1586 (note that   this precise line number will vary across different   versions of OpenVPN). * Windows reliability changes:   (a) Added code to make sure that the local PATH environmental       variable points to the Windows system32 directory.   (b) Added new --ip-win32 adaptive mode which tries 'dynamic'       and then fails over to 'netsh' if the DHCP negotiation fails.   (c) Made --ip-win32 adaptive the default. * More PKCS#11 additions/changes (Alon Bar-Lev). * Added ".PHONY: plugin" to Makefile.am to work around   "make dist" issue. * Fixed double fork issue that occurs when --management-hold   is used. * Moved TUN/TAP read/write log messages from --verb 8 to 6. * Warn when multiple clients having the same common name or   username usurp each other when --duplicate-cn is not used. * Modified Windows and Linux versions of get_default_gateway   to return the route with the smallest metric   if multiple 0.0.0.0/0.0.0.0 entries are present. * Added ">NEED-OK" alert and "needok" command to management   interface to provide a general interface for sending   alerts to the end-user.  Used by the PKCS#11 code   to send Token Insertion Requests to the user. * Added actual remote address used to the ">STATE" alert   in the management interface (Rolf Fokkens). 2005.10.17 -- Version 2.1-beta4 * Fixed bug introduced in 2.1-beta3 where management   socket bind would fail. * --capath fix in ssl.c (Zhuang Yuyao). * Added ".PHONY: plugin" to Makefile.am, reverted   location of "plugin" directory (thanks to   Matthias Andree for figuring this out). 2005.10.16 -- Version 2.1-beta3 * Added PKCS#11 support (Alon Bar-Lev). * Enable the use of --ca together with --pkcs12.  If --ca is   used at the same time as --pkcs12, the CA certificate is loaded   from the file specified by --ca regardless if the pkcs12 file   contains a CA cert or not (Mathias Sundman). * Merged --capath patch (Thomas Noel). * Merged --multihome patch. * Added --bind option for TCP client connections (Ewan Bhamrah   Harley). * Moved "plugin" directory to "plugins" to deal with strange   automake problem that ended up being also fixable with   ".PHONY: plugin" in Makefile.am. 2005.10.13 -- Version 2.1-beta2 * Made --sndbuf and --rcvbuf pushable. 2005.10.01 -- Version 2.1-beta1 * Made LZO setting pushable. * Renamed sample-keys/tmp-ca.crt to ca.crt. * Fixed bug where remove_iroutes_from_push_route_list   was missing routes if those routes had   an implied netmask (by omission) of 255.255.255.255. * Merged with 2.0.3-rc1 * easy-rsa/2.0 moved to easy-rsa * old easy-rsa moved to easy-rsa/1.0 2005.09.23 -- Version 2.0.2-TO4 * Added feature to TAP-Win32 adapter to allow it to be   opened from non-administrator mode.  This feature   is enabled by default, and can be enabled/disabled   in the adapter advanced properties dialog. * Added --allow-nonadmin standalone option for Windows to   set TAP adapter to allow non-admin access.  This   is a user-mode version of the code, and duplicates   the same feature as the above entry. * Added fix that attempts to solve corner case of tunnel not   forwarding packets when system clock is reset to an earlier time. * Added --redirect-gateway bypass-dns option.  (Developers:   To add bypass-dhcp or bypass-dns support to other OSes,   add a get_bypass_addresses function to route.c for   your OS.) * Added OPENVPN_PLUGIN_CLIENT_CONNECT_V2 plugin callback, which   allows a client-connect plugin to return configuration text   in memory, rather than via a file. * Fixed a bug where --mode server --proto tcp-server --cipher none   operation could cause tunnel packet truncation. * openvpn --version will show [LZO1] or [LZO2], depending on   version that was linked. 2005.09.07 -- Version 2.0.2-TO1 * Added --topology directive.  See man page. * Added --redirect-gateway bypass-dhcp option to add a route   allowing DHCP packets to bypass the tunnel, when the   DHCP server is non-local.  Currently only implemented   on Windows clients. * Modified OpenVPN Service on Windows to declare the DHCP   client service as a dependency. * Extended the plugin interface to allow plugins to declare   per-client constructor and destructor functions, to make   it simpler for plugins to maintain per-client state. 2005.09.25 -- Version 2.0.3-rc1 * openvpn_plugin_abort_v1 function wasn't being properly   registered on Windows. * Fixed a bug where --mode server --proto tcp-server --cipher none   operation could cause tunnel packet truncation. 2005.08.25 -- Version 2.0.2 * No change from 2.0.2-rc1. 2005.08.24 -- Version 2.0.2-rc1 * Fixed regression bug in Win32 installer, introduced in 2.0.1,   which incorrectly set OpenVPN service to autostart. * Don't package source code zip file in Windows installer   in order to reduce the size of the installer.  The source   zip file can always be downloaded separately if needed. * Fixed bug in route.c in FreeBSD, Darwin, OpenBSD and NetBSD   version of get_default_gateway.  Allocated socket for route   manipulation is never freed so number of mbufs continuously   grow and exhaust system resources after a while (Jaroslav Klaus). * Fixed bug where "--proto tcp-server --mode p2p --management   host port" would cause the management port to not respond until   the OpenVPN peer connects. * Modified pkitool script to be /bin/sh compatible (Johnny Lam). 2005.08.16 -- Version 2.0.1 * Security Fix -- DoS attack against server when run with "verb 0" and   without "tls-auth".  If a client connection to the server fails   certificate verification, the OpenSSL error queue is not properly   flushed, which can result in another unrelated client instance on the   server seeing the error and responding to it, resulting in disconnection   of the unrelated client (CAN-2005-2531). * Security Fix -- DoS attack against server by authenticated client.   This bug presents a potential DoS attack vector against the server   which can only be initiated by a connected and authenticated client.   If the client sends a packet which fails to decrypt on the server,   the OpenSSL error queue is not properly flushed, which can result in   another unrelated client instance on the server seeing the error and   responding to it, resulting in disconnection of the unrelated client   (CAN-2005-2532).  Credit: Mike Ireton. * Security Fix -- DoS attack against server by authenticated client.   A malicious client in "dev tap" ethernet bridging mode could   theoretically flood the server with packets appearing to come from   hundreds of thousands of different MAC addresses, causing the OpenVPN   process to deplete system virtual memory as it expands its internal   routing table.  A --max-routes-per-client directive has been added   (default=256) to limit the maximum number of routes in OpenVPN's   internal routing table which can be associated with a given client   (CAN-2005-2533). * Security Fix -- DoS attack against server by authenticated client.   If two or more client machines try to connect to the server at the   same time via TCP, using the same client certificate, and when   --duplicate-cn is not enabled on the server, a race condition can   crash the server with "Assertion failed at mtcp.c:411"   (CAN-2005-2534). * Fixed server bug where under certain circumstances, the client instance   object deletion function would try to delete iroutes which had never been   added in the first place, triggering "Assertion failed at mroute.c:349". * Added --auth-retry option to prevent auth errors from being fatal   on the client side, and to permit username/password requeries in case   of error.  Also controllable via new "auth-retry" management interface   command.  See man page for more info. * Added easy-rsa 2.0 scripts to the tarball in easy-rsa/2.0 * Fixed bug in openvpn.spec where rpmbuild --define 'without_pam 1'   would fail to build. * Implement "make check" to perform loopback tests (Matthias Andree). 2005.07.21 -- Version 2.0.1-rc7 * Support LZO 2.01 which renamed its library to lzo2 (Matthias Andree). * Include linux/types.h before checking for linux/errqueue.h (Matthias   Andree). 2005.07.15 -- Version 2.0.1-rc6 * Commented out "user nobody" and "group nobody" in sample   client/server config files. * Allow '@' character to be used in --client-config-dir   file names. 2005.07.04 -- Version 2.0.1-rc5 * Windows version will log a for-further-info URL when   initialization sequence is completed with errors. * Added DLOPEN_PAM parameter to plugin/auth-pam/Makefile   to control whether auth-pam plugin links to PAM via   dlopen or -lpam.  By default, DLOPEN_PAM=1 so pre-existing   behavior should be preserved.  DLOPEN_PAM=0 is the preferred   setting to link via -lpam, but DLOPEN_PAM=1 works around   a bug in SuSE 9.1 (and possibly other distros as well)   where the PAM modules are not linked with -lpam.  See   thread on openvpn-devel for more discussion about this   patch (Simon Perreault). 2005.06.15 -- Version 2.0.1-rc4 * Support LZO 2.00, including changes to configure script to   autodetect LZO version. 2005.06.12 -- Version 2.0.1-rc3 * Fixed a bug which caused standard file handles to not be closed   after daemonization when --plugin and --daemon are used together,   and if the plugin initialization function forks (as does auth-pam   and down-root) (Simon Perreault). * Added client-side up/down scripts in contrib/pull-resolv-conf   for accepting server-pushed "dhcp-option DOMAIN" and "dhcp-option DNS"   on Linux/Unix systems (Jesse Adelman). * Fixed bug where if client-connect scripts/plugins were cascaded,   and one (but not all) of them returned an error status, there might   be cases where for an individual script/plugin, client-connect was   called but not client-disconnect.  The goal of this fix is to   ensure that if client-connect is called on a given client instance,   then client-disconnect will definitely be called.  A potential   complication of this fix is that when client-connect functions are   cascaded, it's possible that the client-disconnect function would   be called in cases where the related client-connect function returned   an error status.  This fix should not alter OpenVPN behavior when   scripts/plugins are not cascaded. * Changed the hard-to-reproduce "Assertion failed at fragment.c:312"   fatal error to a warning: "FRAG: outgoing buffer is not empty".   Need more info on how to reproduce this one. * When --duplicate-cn is used, the --ifconfig-pool allocation   algorithm will now allocate the first available IP address. * When --daemon and --management-hold are used together,   OpenVPN will daemonize before it enters the management hold state. 2005.05.16 -- Version 2.0.1-rc2 * Modified vendor test in openvpn.spec file to match against   "Mandrakesoft" in addition to "MandrakeSoft". * Using --iroute in a --client-config-dir file while in --dev tap   mode is not currently supported and will produce a warning   message. Fixed bug where in certain cases, in addition to   generating a warning message, this combination of options   would also produce a fatal assertion in mroute.c. * Pass --auth-user-pass username to server-side plugin without   performing any string remapping (plugins, unlike scripts,   don't get any security benefit from string remapping).   This is intended to fix an issue with openvpn-auth-pam/pam_winbind   where backslash characters in a username ('\') were being remapped   to underscore ('_'). * Updated OpenSSL DLLs in Windows build to 0.9.7g. * Documented --explicit-exit-notify in man page. * --explicit-exit-notify seconds parameter defaults to 1 if   unspecified. 2005.04.30 -- Version 2.0.1-rc1 * Fixed bug where certain kinds of fatal errors after   initialization (such as port in use) would leave plugin   processes (such as openvpn-auth-pam) still running. * Added optional openvpn_plugin_abort_v1 plugin function for   closing initialized plugin objects in the event of a fatal   error by main OpenVPN process. * When the --remote list is > 1, and --resolv-retry is not   specified (meaning that it defaults to "infinite"), apply the   infinite timeout to the --remote list as a whole, but try each   list item only once before moving on to the next item. * Added new --syslog directive which redirects output   to syslog without requiring the use of the --daemon or --inetd   directives. * Added openvpn.spec option to allow RPM to be built with support   for passwords read from a file:   rpmbuild -tb [openvpn.x.tar.gz] --define 'with_password_save 1' 2005.04.17 -- Version 2.0 * Fixed minor options string typo in options.c. 2005.04.10 -- Version 2.0-rc21 * Change license description from "GPL Version 2 or (at your   option) any later version" to just "GPL Version 2". 2005.04.04 -- Version 2.0-rc20 * Dag Wieers has put together an OpenVPN/LZO binary RPM set with   excellent distro/version coverage for RH/EL/Fedora, though   using his own SPEC.  I modified openvpn.spec to follow some of   the same conventions such as putting sample scripts and doc   files in %doc rather than /usr/share/openvpn. * Minor change to init scripts to run the user-defined script   /etc/openvpn/openvpn-startup (if it exists) before any OpenVPN   configs are started, and to run /etc/openvpn/openvpn-shutdown   after all OpenVPN configs have been stopped.  The   openvpn-startup script can be used for stuff like   insmod tun.o, setting up firewall rules, or starting   ethernet bridges. 2005.03.29 -- Version 2.0-rc19 * Omit additions of routes where the network and   gateway are equal and the netmask is 255.255.255.255.   This can come up if you are using both   server/ifconfig-pool and client-config-dir with   ifconfig-push static addresses for some subset of clients   which directly reference the server IP address as the   remote endpoint. 2005.03.28 -- Version 2.0-rc18 * Packaged Windows installer with OpenSSL 0.9.7f. * Built Windows installer with NSIS 2.06. 2005.03.12 -- Version 2.0-rc17 * "MANAGEMENT: CMD" log file output will now only occur   at --verb 7 or greater. * Added an optional name/value configuration list to   the openvpn-auth-pam plugin module argument list.  See   plugin/auth-pam/README for documentation. This is necessary   in order for openvpn-auth-pam to work with queries generated   by arbitrary PAM modules. * In both auth-pam and down-root plugins, in the forked process,   a read error on the parent process socket is no longer fatal. * MandrakeSoft liblzo1 RPM only Provides for a 'liblzo1'.   A conditional test of the vendor has been added to   Require the appropriately named 'lzo' (liblzo1 / lzo).   (Tom Walsh - http://openhardware.net) 2005.02.20 -- Version 2.0-rc16 * Fixed bug introduced in rc13 where Windows service wrapper   would be installed with a startup type of Automatic.   This fix restores the previous behavior of installing   with a startup type of Manual. 2005.02.19 -- Version 2.0-rc15 * Added warning when --keepalive is not used in a server   configuration. * Don't include OpenSSL md4.h file if we are not building   NTLM proxy support (Waldemar Brodkorb). * Added easy-rsa/build-key-pkcs12 and   easy-rsa/Windows/build-key-pkcs12.bat scripts   (Mathias Sundman). 2005.02.16 -- Version 2.0-rc14 * Fixed small memory leak that occurs when --crl-verify   is used. * Upgraded Windows installer and .nsi script to NSIS 2.05   (Mathias Sundman). * Changed #include backslash usage in cryptoapi.c to use   forward slashes instead (Gisle Vanem). * Created easy-rsa/revoke-full to handle revocations in   a single step: (a) revoke crt, (b) regenerate CRL, and   (c) verify that revocation succeeded. * Renamed easy-rsa/Windows/revoke-key to revoke-full so   that both *nix and Windows scripts are equivalent. 2005.02.11 -- Version 2.0-rc13 * Improve human-readability of local/remote options   diff, when inconsistencies are present. * For Windows easy-rsa, distribute vars.bat.sample and   openssl.cnf.sample, then copy them to their normal   filenames (without the .sample) when init-config.bat   is run.  This is to prevent OpenVPN upgrades from   wiping out vars.bat and openssl.cnf edits. * Modified service wrapper (Windows) to use a   case-insensitive search when scanning for .ovpn files   in \Program Files\OpenVPN\config.  Prior versions   required an all-lower-case .ovpn file extension. * Miscellaneous service wrapper code cleanup. * If --user/--group is used on Windows, treat it   as a no-op with a warning (this makes it easier to   distribute the same client config file to Windows   and *nix users). * Warn if --ifconfig-pool-persist is used with   --duplicate-cn. 2005.02.05 -- Version 2.0-rc12 * Removed some debugging code inadvertently included   in rc11 which would print the --auth-user-pass   username/password provided by clients in the server   logfile. * Client code for cycling through --remote list will   retry the last address which successfully authenticated   before moving on through the list. * Windows installer will now install sample configuration   files in \Program Files\OpenVPN\sample-configs as well   as generate a start menu shortcut to this directory. * Minor type change in buffer.[ch] to work around char-type   ambiguity bug.  Caused management interface lock-ups on   ARM when building with armv4b-hardhat-linux-gcc 2.95.3. 2005.02.03 -- Version 2.0-rc11 * Windows installer will now install easy-rsa directory   in \Program Files\OpenVPN * Allow syslog facility to be controlled at compile time,   e.g. -DLOG_OPENVPN=LOG_LOCAL6 (P Kern). * Changed certain shell scripts in distribution to use   #!/bin/sh rather than #!/bin/bash for better portability. * If --ifconfig-pool-persist seconds parameter is 0, treat   persist file as an allocation of fixed IP addresses   (previous versions took IP-to-common-name associations   from this list as hints, not mandatory static allocations). * Fixed bug on *nix where if --auth-user-pass and --log   were used together, the username prompt would be sent to   the log file rather than /dev/tty. * Spurious text in openvpn.8 detected by doclifter   (Eric S. Raymond). * Call closelog later on daemon kill so that process   exit message is written to syslog. 2005.01.27 -- Version 2.0-rc10 * When ./configure is run with plugins enabled (the default),   check whether or not dlopen exists in libc before testing   for libdl.  This is to fix an issue on FreeBSD and possibly   other OSes which bundle libdl functions in libc. * On Windows, filter initial WSAEINVAL warning which occurs   on the initial read attempt of an unbound socket. * The easy-rsa scripts build-key, build-key-pass, and   build-key-server will now chmod the .key file   to 0600.  This is in addition to the fact the generated   keys directory has always been similarly protected   (Pete Harlan). 2005.01.23 -- Version 2.0-rc9 * Fixed error "ROUTE: route addition failed using   CreateIpForwardEntry ..." on Windows when --redirect-gateway   is used over a RRAS internet link. * When using --route-method exe on Windows, include the   gateway parameter on route delete commands (Mathias Sundman). * Try not to do a hard reset (i.e. SIGHUP) when two   SIGUSR1 signals are received in close succession. * If the push list tries to grow beyond its buffer capacity,   the resulting error will be non-fatal. * To increase the push list capacity (must be done on both   client and server), increase TLS_CHANNEL_BUF_SIZE in   common.h (default=1024). 2005.01.15 -- Version 2.0-rc8 * Fixed bug introduced in rc7 where options error   "--auth-user-pass requires --pull" might occur even   if --pull was correctly specified. * Changed management interface code to bind once   to TCP socket, rather than rebinding after every   client disconnect. * Added "disable" directive for client-config-dir   files. * Windows binary install is now distributed with   OpenSSL 0.9.7e. * Query the management interface for --http-proxy   username/password if authfile is set to "stdin". * Added current OpenVPN version number to "Unrecognized   option or missing parameter" error message. * Added "-extensions server" to "openssl req" command   in easy-rsa/build-key-server (Nir Yeffet). 2005.01.10 -- Version 2.0-rc7 * Fixed bug in management interface which could cause   100% CPU utilization in --proto tcp-server mode   on all *nix OSes except for Linux 2.6. * --ifconfig-push now accepts DNS names as well as   IP addresses. * Added sanity check errors when --pull or   --auth-user-pass is used in an incorrect mode. * Updated man page entries for --client-connect and   --ifconfig-push. * Added "String Types and Remapping" section to man   page to consisely document the way which OpenVPN   may convert certain types of characters in strings   to ('_'). * Modified bridging description in HOWTO to emphasize   the fact that bridging allows Windows file and print   sharing without a WINS server (Charles Duffy). 2004.12.20 -- Version 2.0-rc6 * Improved checking for epoll support in ./configure   to fix false positive on RH9 (Jan Just Keijser). * Made the "MULTI TCP: I/O wait required blocking in   multi_tcp_action, action=7" error nonfatal and replaced   with "MULTI: Outgoing TUN queue full, dropped packet".   So far the issue only seems to occur on Linux 2.2   in --mode server --proto tcp mode.  It occurs when   the TUN/TAP driver locks up and refuses to accept   new packet writes for a second or more. * Fixed bug where if a --client-config-dir file tried   to include another file using "config", and if that   include failed, OpenVPN would abort with a fatal   error.  Now such inclusion failures will be logged   but are no longer fatal. * Global changes to the way that packet buffer alignment   is handled.  Previously we didn't care about alignment   and took care, when handling 16 and 32 bit words   in buffers, to always use alignment-safe transfers.   This approach appears to be inadequate on some   architectures such as alpha.  The new approach is   to initialize packet buffers in a way that anticipates   how component structures will be allocated within   them, to maintain correct alignment. * Added --dhcp-option DISABLE-NBT to disable NetBIOS   over TCP (Jan Just Keijser). * Added --http-proxy-option directive for controlling   miscellaneous HTTP proxy options. * Management state will no longer transition to "WAIT"   during TLS renegotiations. 2004.12.16 -- Version 2.0-rc5 * The --client-config-dir option will now try to open   a default file called "DEFAULT" if no file matching   the common name of the incoming client was found. * The --client-connect script/plugin can now veto client   authentication by returning a failure code. * The --learn-address script/plugin can now prevent a   client-instance/address association from being learned   by returning a failure code. * Changed RPM group in .spec file to Applications/Internet. 2004.12.14 -- Version 2.0-rc4 * SuSE only -- Fixed interaction between openvpn.spec and   suse/openvpn.init where the .spec file was writing the   OpenVPN binary to a different location than where the   .init script was referencing it (Stefan Engel). * Solaris only -- Split Solaris ifconfig command into two   parts (Jan Just Keijser). * Some cleanup in add_option(). * Better error checking on input dotted quad IP addresses. * Verify that --push argument is quoted, if there is   more than one. * More miscellaneous option sanity checks. 2004.12.13 -- Version 2.0-rc3 * On Windows, when --log or --log-append is used,   save the original stderr for username and password   prompts. * Fixed a bug introduced in the late 2.0 betas where   if a "verb" parameter >= 16 was used, it would be   ignored and the actual verb level would remain at 1. * Fixed a bug mostly seen on OS X where --management-hold   or --management-query-passwords would cause the management   interface to be unresponsive to incoming client connections. * Trigger an options error if one of the management-modifying   options is used without "management" itself. 2004.12.12 -- Version 2.0-rc2 * Amplified warnings in documentation about possible   man-in-the-middle attack when clients do not properly   verify server certificate.  Changes to easy-rsa README,   FAQ, HOWTO, man page, and sample client config file. * Added a warning message if --tls-client or --client   is used without also specifying one of either   --ns-cert-type, --tls-remote, or --tls-verify. * status_open() fixes for MSVC builds (Blaine Fleming). * Fix attempt of "ntlm.c:55: error: `des_cblock' undeclared"   compiler error which has been reported on some platforms. * The openvpn.spec file for rpmbuild has several   new build-time options.  See comments in the file. * Plugins are now built and packaged in the RPM and   will be saved in /usr/share/openvpn/plugin/lib. * Added --management-hold directive to start OpenVPN   in a hibernating state until released by the   management interface.  Also added "hold" command   to the management interface. 2004.12.07 -- Version 2.0-rc1 * openvpn.spec workaround for SuSE confusion regarding   /etc/init.d vs. /etc/rc.d/init.d (Stefan Engel). 2004.12.05 -- Version 2.0-beta20 * The ability to read --askpass and --auth-user-pass   passwords from a file has been disabled by default.   To re-enable, use ./configure --enable-password-save. * Added additional pre-connected states to management   interface.  See management/management-notes.txt   for more info. * State history is now recorded by the management   interface, and the "state" command now works like   the log or echo commands. * State history and real-time state change notifications   are now prepended with an integer unix timestamp. * Added --http-proxy-timeout option, previously   the timeout was hardcoded to 5 seconds. 2004.12.02 -- Version 2.0-beta19 * Fixed bug in management interface line termination   where output lines incorrectly contained a \00 char   after the customary \0d \0a. * Fixed bug introduced in beta18 where Windows version   would segfault on options errors. * Fixed bug in management interface where an empty   quoted string ("") entered as a parameter would cause   a segfault. * Fixed bug where --resolv-retry was not working   properly with multiple --remote hosts. * Added additional ./configure options to reduce   executable size for embedded applications.   See ./configure --help. 2004.11.28 -- Version 2.0-beta18 * Added management interface.  See new --management-*   options or the full management interface documentation   in management/management-notes.txt in the tarball.   Management interface inclusion can be disabled by   ./configure --disable-management. * Added two new plugin modules: auth-pam and down-root.   Auth-pam supports pam-based authentication using a   split privilege execution model, while down-root enables   a down script to be executed with root privileges, even   when --user/--group is used to drop root privileges.   See the plugin directory in the tarball for READMEs,   source code, and Makefiles. * Plugin developers should note that some changes were   made to the plugin interface since beta17.  See   openvpn-plugin.h for details.   Plugin interface inclusion can be disabled with   ./configure --disable-plugins * Added easy-rsa/build-key-server script which will   build a certificate with with nsCertType=server. * Added --ns-cert-type option for verification   of nsCertType field in peer certificate. * If --fragment n is specified and --mssfix is specified   without a parameter, default --mssfix to n.  This restores   the 1.6 behavior when using --mssfix without a parameter. * Fixed SSL context initialization bug introduced in beta14   where this error might occur on restarts: "Cannot load   certificate chain ... PEM_read_bio:no start line". 2004.11.11 -- Version 2.0-beta17 * Changed default port number to 1194 per IANA official   port number assignment. * Added --plugin directive which allows compiled   modules to intercept script callbacks.  See   plugin folder in tarball for more info. * Fixed bug introduced in beta12 where --key-method 1   authentications which should have succeeded would fail. * Ignore SIGUSR1 during DNS resolution. * Added SuSE support to openvpn.spec (Umberto Nicoletti). * Fixed --cryptoapicert SUBJ: parsing bug (Peter 'Luna'   Runestig). 2004.11.07 -- Version 2.0-beta16 * Modified sample-scripts/auth-pam.pl to get username   and password from OpenVPN via a file rather than   via environmental variables. * Added bytes_sent and bytes_received environmental   variables to be set prior to client-disconnect script. * Changed client virtual IP derivation precedence:   (1) use --ifconfig-push directive from --client-connect   script, (2) use --ifconfig-push directive from   --client-config-dir, and (3) use --ifconfig-pool   address. * If a --client-config-dir file specifies --ifconfig-push,   it will be visible to the --client-connect-script in   the ifconfig_pool_remote_ip environmental variable. * For tun-style tunnels, the ifconfig_pool_local_ip   environmental variable will be set, while for   tap-style tunnels, the ifconfig_pool_netmask variable   will be set. * Added intelligence to autoconf script to test   compiler for the accepted form of zero-length arrays. * Fixed a bug introduced in beta12 where --ip-win32   netsh would fail if --dev-node was not explicitly   specified. * --ip-win32 netsh will now work on hidden adapters. * Fix attempt of "Assertion failed at crypto.c:149".   This assertion has also been reported on 1.x with a   slightly different line number.  The fix is twofold:   (1) In previous releases, --mtu-test may trigger this   assertion -- this bug has been fixed.  (2) If something   else causes the assertion to be thrown, don't panic,   just output a nonfatal warning to the log and drop   the packet which generated the error. * Support TAP interfaces on Mac OS X (Waldemar Brodkorb). * Added --echo directive. * Added --auth-nocache directive. 2004.10.28 -- Version 2.0-beta15 * Changed environmental variable character classes   so that names must consist of alphanumeric or   underbar chars and values must consist of printable   characters.  Illegal chars will be deleted.   Versions prior to 2.0-beta12 were more restrictive   and would map spaces to '.'. * On Windows, when the TAP adapter fails to   initialize with the correct IP address, output   "Initialization Sequence Completed with Errors"   to the console or log file. * Added a warning when user/group/chroot is used   without persist-tun and persist-key. * Added cryptoapi.[ch] to tarball and source zip. * --tls-remote option now works with common name   prefixes as well as with the full X509 subject   string.  This is a useful alternative to using   a CRL on the client. * common names associated with a static   --ifconfig-push setting will no longer leave   any state in the --ifconfig-pool-persist file. * Hard TLS errors (TLS handshake failed) will now   trigger either a SIGUSR1 signal by default   or SIGTERM (if --tls-exit is specified).  In TCP   mode, all TLS errors are considered to be hard.   In server mode, the signal will be local to the   client instance. * Added method parameter to --auth-user-pass-verify   directive to select whether username/password   is passed to script via environment or a temporary   file. * Added --status-version option to control format   of --status file.  The --mode server   --status-version 2 format now includes a line   type token, the virtual IP address is shown   in the client list (even in --dev tap mode),   and the integer time_t value is shown anywhere   an ascii-formatted time/date is also shown. * Added --remap-usr1 directive which can be used   to control whether internally or externally   generated SIGUSR1 signals are remapped to   SIGHUP (restart without persisting state) or   SIGTERM (exit). * When running as a Windows service (using   --service option), check the exit event before   and after reading one line of input from   stdin, when reading username/password info. * For developers: Extended the --gremlin function   to better stress-test the new 2.0 features,   added Valgrind support on Linux and Dmalloc   support on Windows. 2004.10.19 -- Version 2.0-beta14 * Fixed a bug introduced in Beta12 that would occur   if you use a --client-connect script without also   defining --tmp-dir. * Fixed a bug introduced in Beta12 where a learn-address   script might segfault on the delete method. * Added Crypto API support in Windows version via   the --cryptoapicert option (Peter 'Luna' Runestig). 2004.10.18 -- Version 2.0-beta13 * Fixed an issue introduced in Beta12 where the private   key password would not be prompted for unless --askpass   was explicitly specified in the config. 2004.10.17 -- Version 2.0-beta12 * Added support for username/password-based authentication.   Clients can now authentication themselves with the server   using either a certificate, a username/password, or both.   New directives: --auth-user-pass, --auth-user-pass-verify,   --client-cert-not-required, and --username-as-common-name. * Added NTLM proxy patch (William Preston). * Added --ifconfig-pool-linear server flag to allocate   individual tun addresses for clients rather than /30   subnets (won't work with Windows clients). * Modified --http-proxy code to cache username/password   across restarts. * Modified --http-proxy code to read username/password   from the console when the auth file is given as "stdin". * Modified --askpass to take an optional filename argument. * --persist-tun and --persist-key now work in client mode   and can be pushed to clients as well. * Added --ifconfig-pool-persist directive, to maintain   ifconfig-pool info in a file which is persistent across   daemon instantiations. * --user and --group privilege downgrades as well as   --chroot now also work in client mode (the   dowgrade/chroot will be delayed until the initialization   sequence is completed). * Added --show-engines standalone directive to show   available OpenSSL crypto accelerator engine support. * --engine directive now accepts an optional engine-ID   parameter to control which engine is used. * "Connection reset, restarting" log message now shows   which client is being reset. * Added --dhcp-pre-release directive in Windows version. * Second parm to --ip-win32 can be "default", e.g.   --ip-win32 dynamic default 60. * Fixed documentation bug regarding environmental   variable settings for --ifconfig-pool IP addresses.   The correct environmental variable names are:   ifconfig_pool_local_ip and ifconfig_pool_remote_ip. * ifconfig_pool_local_ip and ifconfig_pool_remote_ip   environmental variables are now passed to the   client-disconnect script. * In server mode, environmental variables are now scoped   according to the client they are associated with,   to solve the problem of "crosstalk" between different   client's environmental variable sets. * Added --down-pre flag to cause --down script to be   called before TUN/TAP close (rather than after). * Added --tls-exit flag which will cause OpenVPN   to exit on any TLS errors. * Don't push a route to a client if it exactly   matches an iroute (this lets you push routes to   all clients, and OpenVPN will automatically remove   the route from the route push list only for that client   which the route actually belongs to). * Made '--resolv-retry infinite' the default.   --resolv-retry can be disabled by using a parameter of 0. * For clients which plan to pull config info from server,   set an initial default ping-restart of 60 seconds. * Optimized mute code to lessen the load on the processor   when messages are being muted at a higher frequency. * Made route log messages non-mutable. * Silence the Linux "No buffer space available" message. * Added miscellaneous additional option sanity checks. * Added Windows version of easy-rsa scripts in   easy-rsa/Windows directory (Andrew J. Richardson). * Added NetBSD route patch (Ed Ravin). * Added OpenBSD patch for TAP + --redirect-gateway   (Waldemar Brodkorb). * Directives which prompt for a username and/or password   will now work with --daemon (OpenVPN will prompt   before forking). * Warn if CRL is from a different issuer than the   issuer of the peer certificate (Bernhard Weisshuhn). * Changed init script chkconfig parameters to start   OpenVPN daemon(s) before NFS. * Bug fix attempt of "too many I/O wait events" which occurs   on OSes which prefer select() over poll() such as Mac OS X. * Added --ccd-exclusive flag.  This flag will require, as a   condition of authentication, that a connecting client has   a --client-config-dir file. * TAP-Win32 open code will attempt to open a free adapter   if --dev-node is not specified (Mathias Sundman). * Resequenced --nice and --chroot ordering so that --nice   occurs first. * Added --suppress-timestamps flag (Charles Duffy). * Source code changes to allow compilation by MSVC   (Peter 'Luna' Runestig). * Added experimental --fast-io flag which optimizes   TUN/TAP/UDP writes on non-Windows systems. 2004.08.18 -- Version 2.0-beta11 * Added --server, --server-bridge, --client, and   --keepalive helper directives.  See client.conf   and server.conf in sample-config-files for sample   configurations which use the new directives. * On Windows, added --route-method to control   whether IP Helper API or route.exe is used   to add/delete routes. * On Windows, added a second parameter to   --route-delay to control the maximum time period   to wait for the TAP-Win32 adapter to come up   before adding routes. * Fixed bug in Windows version where configurations   which omit --ifconfig might fail to recognize when   the TAP adapter is up. * Proxy connection failures will now retry according   to the --connect-retry parameter. * Fixed --dev null handling on Windows so that TLS   loopback test described in INSTALL file works   correctly on Windows. * Added "Initialization Sequence Completed" message   after all initialization steps have been completed   and the VPN can be considered "up". * Better sanity-checking on --ifconfig-pool parameters. * Added --tcp-queue-limit option to control   TUN/TAP -> TCP socket overflow. * --ifconfig-nowarn flag will now silence general   warnings about possible --ifconfig address   conflicts, including the warning about --ifconfig   and --remote addresses being in same /24 subnet. * Fixed case where server mode did not correctly   identify certain types of ethernet multicast packets   (Marcel de Kogel). * Added --explicit-exit-notify option (experimental). 2004.08.02 -- Version 2.0-beta10 * Fixed possible reference after free of option strings   after a restart, bug was introduced in beta8. * Fixed segfault at route.c:919 in the beta9   Windows version that was being caused by indirection   through a NULL pointer. * Mistakenly built debug version of TAP-Win32 driver   for beta9.  Beta10 has correct release build. 2004.07.30 -- Version 2.0-beta9 * Fixed --route issue on Windows that was introduced with   the new beta8 route implementation based on the   IP Helper API. 2004.07.27 -- Version 2.0-beta8 * Added TCP support in server mode. * Added PKCS #12 support (Mathias Sundman). * Added patch to make revoke-crt and make-crl work   seamlessly within the easy-rsa environment (Jan Kiszka). * Modified --mode server ethernet bridge code to forward   special IEEE 802.1d MAC Groups, i.e. 01:80:C2:XX:XX:XX. * Added --dhcp-renew and --dhcp-release flags to Windows   version.  Normally DHCP renewal and release on the TAP   adapter occurs automatically under Windows, however   if you set the TAP-Win32 adapter Media Status property   to "Always Connected", you may need these flags. * Added --show-net standalone flag to Windows version to   show OpenVPN's view of the system adapter and routing   tables. * Added --show-net-up flag to Windows version to output   the system routing table and network adapter list to   the log file after the TAP-Win32 adapter has been brought   up and any routes have been added. * Modified Windows version to add routes using the IP Helper   API rather than by calling route.exe. * Fixed bug where --route-up script was not being called   if no --route options were specified. * Added --mute-replay-warnings to suppress packet replay   warnings.  This is a common false alarm on WiFi nets. * Added "def1" flag to --redirect-gateway option to override   the default gateway by using 0.0.0.0/1 and 128.0.0.0/1   rather than 0.0.0.0/0.  This has the benefit of overriding   but not wiping out the original default gateway.   (Thanks to Jim Carter for pointing out this idea). * You can now run OpenVPN with a single config file argument.   For example, you can now say "openvpn config.conf"   rather than "openvpn --config config.conf". * On Windows, made --route and --route-delay more adaptive   with respect to waiting for interfaces referenced by the   route destination to come up.  Routes added by --route   should now be added as soon as the interface comes up,   rather than after an obligatory 10 second delay.  The   way this works internally is that --route-delay now   defaults to 0 on Windows.  Previous versions would   wait for --route-delay seconds then add the routes.   This version will wait --route-delay seconds and then   test the routing table at one second intervals for the   next 30 seconds and will not add the routes until they   can be added without errors. * On Windows, don't setsockopt SO_SNDBUF or SO_RCVBUF by   default on TCP/UDP socket in light of reports that this   action can have undesirable global side effects on the   MTU settings of other adapters.  These parameters can   still be set, but you need to explicitly specify   --sndbuf and/or --rcvbuf. * Added --max-clients option to limit the maximum number   of simultaneously connected clients in server mode. * Added error message to illuminate shell escape gotcha when   single backslashes are used in Windows path names. * Added optional netmask parm to --ifconfig-pool. * Fixed bug where http-proxy connect retry attempts were   incorrectly going to the remote OpenVPN server,   not to the HTTP proxy server. 2004.06.29 -- Version 2.0-beta7 * Fixed bug in link_socket_verify_incoming_addr() which   under certain circumstances could have caused --float   behavior even if --float was not specified. * --tls-auth option now works with --mode server.   All clients and the server should use the same   --tls-auth key when operating in client/server mode. * Added --engine option to make use of OpenSSL-supported   crypto acceleration hardware. * Fixed some high verbosity print format size issues   in event.c for 64 bit platforms (Janne Johansson). * Made failure to open --log or --log-append file   a non-fatal error. 2004.06.23 -- Version 2.0-beta6 * Fixed Windows installer to intelligently put   up a reboot dialog only if tapinstall tells   us that it's really necessary. * Fixed "Assertion failed at fragment.c:309"   bug when --mode server and --fragment are used   together. * Ignore HUP, USR1, and USR2 signals during   initialization.  Prior versions would abort. * Fixed bug on OS X: "Assertion failed at event.c:406". * Added --service option to Windows version, for use   when OpenVPN is being programmatically instantiated   by another process (see man page for info). * --log and --log-append options now work on Windows. * Update OpenBSD INSTALL notes (Janne Johansson). * Enable multicast on tun interface when running on   OpenBSD (Pavlin Radoslavov). * Fixed recent --test-crypto breakage, where options   such as --cipher were not being parsed correctly. * Modified options compatibility string by removing   ifconfig substring if it is empty.  Incremented   options compatibility string version number to 4. * Fixed typo in --tls-timeout option parsing   (Mikael Lonnroth). 2004.06.13 -- Version 2.0-beta5 * Fixed rare --mode server crash that could occur   if data was being routed to a client at   high bandwidth at the precise moment that the   client instance object on the server was being   deleted. * Fixed issue on machines which have epoll.h and   the epoll_create glibc call defined, but which   don't actually implement epoll in the kernel.   OpenVPN will now gracefully fall back to the   poll API in this case. * Fixed Windows bug which would cause the following   error in a --mode server --dev tap configuration:   "resource limit WSA_MAXIMUM_WAIT_EVENTS has been   exceeded". * Added CRL (certificate revocation list) management   scripts to easy-rsa directory (Jon Bendtsen). * Do a better job of getting the ifconfig component   of the options consistency check to work correctly   when --up-delay is used. * De-inlined some functions which were too complex   to be inlined anyway with gcc. * If a --dhcp-option option is pushed to a non-windows   client, the option will be saved in the client's   environment before the --up script is called, under   the name "foreign_option_{n}". * Added --learn-address script (see man page) which   allows for firewall access through the VPN to be   controlled based on the client common name. * In mode --server mode, when a client connects to   the server, the server will disconnect any   still-active clients which use the same common   name.  Use --duplicate-cn flag to revert to   previous behavior of allowing multiple clients   to concurrently connect with the same common name. 2004.06.08 -- Version 2.0-beta4 * Fixed issue with beta3 where Win32 service wrapper   was keying off of old TAP HWID as a dependency.  To   ensure that the new service wrapper is correctly   installed, the Windows install script will uninstall   the old wrapper before installing the new one,   causing a reset of service properties. * Fixed permissions issue on --status output file,   with default access permissions of owner read/write   only (default permissions can be changed of course with   chmod). 2004.06.05 -- Version 2.0-beta3 * More changes to TAP-Win32 driver's INF file which   affects the placement of the driver in the Windows   device namespace.  This is done to work around an   apparent bug in Windows when short HWIDs are used,   and will also ease the upgrade from 1.x to 2.0 by   reducing the chances that a reboot will be needed   on upgrade.  Like beta2, this upgrade will   delete existing TAP-Win32 interfaces, and reinstall   a single new interface with default properties. * Major rewrite of I/O event wait layer in the style   of libevent.  This is a precursor to TCP support   in --mode server. * New feature: --status.  Outputs a SIGUSR2-like   status summary to a given file, updated once   per n seconds.  The status file is comma delimited   for easy machine parsing. * --ifconfig-pool now remembers common names and   will try to assign a consistent IP to a given   common name.  Still to do: persist --ifconfig-pool   memory across restarts by saving state in file. * Fixed bug in event timer queue which could cause   recurring timer events such as --ping to not   correctly schedule again after firing.  This in   turn would cause spurrious ping restarts and possible   connection outages.  Thanks to Denis Vlasenko for   tracking this down. * Possible fix to reported bug where --daemon argument   was not printing to syslog correctly after restart. * Fixed bug where pulling --route or --dhcp-option   directives from a server would problematically   interact with --persist-tun on the client. * Updated contrib/multilevel-init.patch (Farkas Levente). * Added RPM build option to .spec and .spec.in files   to optionally disable LZO inclusion (Ian Pilcher). * The latest MingW runtime and headers define   'ssize_t', so a patch is needed (Gisle Vanem). 2004.05.14 -- Version 2.0-beta2 * Fixed signal handling bug in --mode server, where   SIGHUP and SIGUSR1 were treated as SIGTERM. * Changed the TAP-Win32 HWID from "TAP" to "TAPDEV".   Apparently the larger string may work around   a problem where the TAP adapter is sometimes missing   from the network connections panel, especially under   XP SP2. Also note that installing this upgrade will   uninstall any pre-existing TAP-Win32 adapters, and then   install a single new adapter, meaning that old adapter   properties will be lost.  Thanks to Md5Chap for solving   this one. * For --mode server --dev tap, the options --ifconfig and   --ifconfig-pool are now optional.  This allows address   assignment via DHCP or use of a TAP VPN without   IP support, as has always been possible with 1.x. * Fixed bug where --ifconfig may not work correctly on   Linux 2.2. * Added 'local' flag to --redirect-gateway for use on   networks where both OpenVPN daemons are connected   to a shared subnet, such as wireless. 2004.05.09 -- Version 2.0-beta1 * Unchanged from test29 except for version number   upgrade. 2004.05.08 -- Version 2.0-test29 * Modified --dev-node on Windows to accept a TAP-Win32   GUID name.  In addition, --show-adapters will now   display the high-level name and GUID of each adapter.   This is an attempt to work around an issue in Windows   where sometimes the TAP-Win32 adapter installs correctly   but has no icon in the network connections control   panel.  In such cases, being able to specify   --dev-node {TAP-GUID} can work around the missing icon. 2004.05.07 -- Version 2.0-test28 * Fixed bug which could cause segfault on program   shutdown if --route and --persist-tun are used   together. 2004.05.06 -- Version 2.0-test27 * Fixed bug in close_instance() which might cause   memory to be accessed after it had already been freed. * Fixed bug in verify_callback() that might have   caused uninitialized data to be referenced. * --iroute now allows full CIDR subnet routing. * In "--mode server --dev tun" usage, source addresses   on VPN packets coming from a particular client must   be associated with that client in the OpenVPN internal   routing table. 2004.04.28 -- Version 2.0-test26 * Optimized broadcast path in multi-client mode. * Added socket buffer size options --rcvbuf & --sndbuf. * Configure Linux tun/tap driver to use a more sensible   txqueuelen default.  Also allow explicit setting   via --txqueuelen option (Harald Roelle). * The --remote option now allows the port number   to be specified as the second parameter.  If   unspecified, the port number defaults to the   --rport value. * Multiple --remote options on the client can now be   specified for load balancing and failover.  The   --remote-random flag can be used to initially randomize   the --remote list for basic load balancing. * If a remote DNS name resolves to multiple DNS addresses,   one will be chosen by random as a kind of basic   load-balancing feature if --remote-random is used. * Added --connect-freq option to control maximum   new connection frequency in multi-client mode. * In multi-client mode, all syslog messages associated   with a specific client now include a client-ID prefix. * For Windows, use a gettimeofday() function based   on QueryPerformanceCounter (Derek Burdick). * Fixed bug in interaction between --key-method 2   and DES ciphers, where dynamic keys would be generated   with bad parity and then be rejected. 2004.04.17 -- Version 2.0-test24 * Reworked multi-client broadcast handling. 2004.04.13 -- Version 2.0-test23 * Fixed bug in --dev tun --client-to-client routing. * Fixed a potential deadlock in --pull. * Fixed a problem with select() usage which could   cause a repeating sequence of "select : Invalid   argument (code=22)" 2004.04.11 -- Version 2.0-test22 * Fixed bug where --mode server + --daemon was   prematurely closing syslog connection. * Added support for --redirect-gateway on Mac OS X   (Jeremy Apple). * Minor changes to TAP-Win32 driver based on feedback   from the NDISTest tool. 2004.04.11 -- Version 2.0-test21 * Optimizations in multi-client server event loop. 2004.04.10 -- Version 2.0-test20 * --mode server capability now works with either tun   or tap interfaces.  When used with tap interfaces,   OpenVPN will internally bridge all client tap   interfaces with the server tap interface. * Connecting clients can now have a client-specific   configuration on the server, based on the client   common name embedded in the client certificate.   See --client-config-dir and --client-connect.   These options can be used to configure client-specific   routes. * Added an option --client-to-client that enables   internal client-to-client routing or bridging.   Otherwise, clients will only "see" the server,   not other connected clients. * Fixed bug in route scheduling which would have caused   --mode server to not work on Windows in test18   and test19 with the sample config file. * Man page is up to date with all new options. * OpenVPN 2.0 release notes on web site updated   with tap-style tunnel examples. 2004.04.02 -- Version 2.0-test19 * Fixed bug where routes pushed from server were   not working correctly on Windows clients. * Added Mac OS X route patch (Jeremy Apple). 2004.03.30 -- Version 2.0-test18 * Minor fixes + Windows self-install modified   to use OpenSSL 0.9.7d. 2004.03.29 -- Version 2.0-test17 * Fixed some bugs related to instance timeout and deletion. * Extended --push/--pull option to support additional   option classes. 2004.03.28 -- Version 2.0-test16 * Successful test of --mode udp-server, --push,   --pull, and --ifconfig-pool with server on   Linux 2.4 and clients on Linux and Windows. 2004.03.25 -- Version 2.0-test15 * Implemented hash-table lookup of client instances   based either on remote UDP address/port or remote   ifconfig endpoint. * Implemented a randomized binary tree based   scheduler for scalably scheduling a large number   of client instance events.  Uses the treap   data structure and node rotation algorithm   to keep the tree balanced. * Initial implementation of ifconfig-pool. * Made --key-method 2 the default. 2004.03.20 -- Version 2.0-test14 * Implemented --push and --pull. 2004.03.20 -- Version 2.0-test13 * Reduced struct tls_multi and --single-session   memory footprint. * Modified --single-session flag to be used   in multi-client UDP server client instances. 2004.03.19 -- Version 2.0-test12 * Added the key multi-client UDP server options,   --mode, --push, --pull, and --ifconfig-pool. * Revamped GC (garbage collection) code to not rely   on any global data. * Modifications to thread.[ch] to allow a more   flexible thread model. 2004.03.16 -- Version 2.0-test11 * Moved all timer code to interval.h, added new file   interval.c. * Fixed missing include. 2004.03.16 -- Version 2.0-test10 * More TAP-Win32 fixes. * Initial debugging and testing of multi.[ch]. 2004.03.14 -- Version 2.0-test9 * Branch merge with 1.6-rc3 * More point-to-multipoint work in multi.[ch]. * Major TAP-Win32 driver restructuring to use   NdisMRegisterDevice instead of   IoCreateDevice/IoCreateSymbolicLink. * Changed TAP-Win32 symbolic links to use \DosDevices\Global\   pathname prefix. * In the majority of cases, TAP-Win32 should now be   able to install and uninstall on Win2K without requiring   a reboot. * TAP-Win32 MAC address can now be explicitly set in the   adapter advanced properties page. 2004.03.04 -- Version 2.0-test8 * Branch merge with 1.6-rc2. 2004.03.03 -- Version 2.0-test7 * Branch merge with 1.6-rc1.2. 2004.03.02 -- Version 2.0-test6 * Branch merge with 1.6-rc1. 2004.03.02 -- Version 2.0-test5 * Move Socks5 UDP header append/remove to socks.c, and is   called from forward.c. * Moved verify statics from ssl.c into struct tls_session. * Wrote multi.[ch] to handle top level of point-to-multipoint   mode. * Wrote some code to allow a struct link_socket in a child context   to be slaved to the parent context. * Broke up packet read and process functions in forward.c   (from socket or tuntap) into separate functions for read   and process, so that point-to-point and point-to-multipoint can   share the same code. * Expand TLS control channel to allow the passing of configuration   commands. * Wrote mroute.[ch] to handle internal packet routing for   point-to-multipoint mode. 2004.02.22 -- Version 2.0-test3 * Initial work on UDP multi-client server. * Branch merge of 1.6-beta7 2004.02.14 -- Version 2.0-test2 * Refactorization of openvpn.c into openvpn.[ch]   init.[ch] forward.[ch] forward-inline.h   occ.[ch] occ-inline.h  ping.[ch] ping-inline.h   sig.[ch].  Created a master per-tunnel   struct context in openvpn.h. * Branch merge of 1.6-beta6.2 2003.11.06 -- Version 2.0-test1 * Initial testbed for 2.0. 2004.05.09 -- Version 1.6.0 * Unchanged from 1.6-rc4 except for version number   upgrade. 2004.04.01 -- Version 1.6-rc4 * Made minor customizations to devcon and   renamed as tapinstall.exe for Windows version. * Fixed "storage size of `iv' isn't known" build   problem on FreeBSD. * OpenSSL 0.9.7d bundled with Windows self-install. 2004.03.13 -- Version 1.6-rc3 * Minor Windows fixes for --ip-win32 dynamic, relating to   the way the TAP-Win32 driver responds to a DHCP request   from the Windows DHCP client. * The net_gateway environmental variable wasn't being   set correctly for called scripts (Paul Zuber). * Added code to determine the default gateway on FreeBSD,   allowing the --redirect-gateway option to work   (Juan Rodriguez Hervella). 2004.03.04 -- Version 1.6-rc2 * Fixed bug in Windows version where the NetBIOS node-type   DHCP option might have been passed even if it was not   specified. * Fixed bug in Windows version introduced in 1.6-rc1, where   DHCP timeout would be set to 0 seconds if --ifconfig option   was used and --ip-win32 option was not explicitly specified. * Added some new --dhcp-option types for Windows version. 2004.03.02 -- Version 1.6-rc1 * For Windows, make "--ip-win32 dynamic" the default. * For Windows, make "--route-delay 10" the default   unless --ip-win32 dynamic is not used or --route-delay   is explicitly specified. * L_TLS mutex could have been left in a locked state   for certain kinds of TLS errors. 2004.02.22 -- Version 1.6-beta7 * Allow scheduling priority increase (--nice) together   with UID/GID downgrade (--user/--group). * Code that causes SIGUSR1 restart on TLS errors in TCP   mode was not activated in pthread builds. * Save the certificate serial number in an environmental   variable called tls_serial_{n} prior to calling the   --tls-verify script.  n is the current cert chain level. * Added NetBSD IPv6 tunnel capability (also requires   a kernel patch) (Horst Laschinsky). * Fixed bug in checking the return value of the nice()   function (Ian Pilcher). * Bug fix in new FreeBSD IPv6 over TUN code which was   originally added in 1.6-beta5 (Nathanael Rensen). * More Socks5 fixes -- extended the struct frame   infrastructure to accomodate proxy-based encapsulation   overhead. * Added --dhcp-option to Windows version for setting   adapter properties such as WINS & DNS servers. * Use a default route-delay of 5 seconds when   --ip-win32 dynamic is specified (only applicable when   --route-delay is not explicitly specified). * Added "log_append" registry variable to control   whether the OpenVPN service wrapper on Windows   opens log files in append (log_append="1") or   truncate (log_append="0") mode.  The default   is truncate. 2004.02.05 -- Version 1.6-beta6 * UDP over Socks5 fix to accomodate Socks5 encapsulation   overhead (Christof Meerwald). * Minor --ip-win32 dynamic tweaks (use long lease time,   invalidate existing lease with DHCPNAK). 2004.02.01 -- Version 1.6-beta5 * Added Socks5 proxy support (Christof Meerwald). * IPv6 tun support for FreeBSD (Thomas Glanzmann). * Special TAP-Win32 debug mode for Windows self-install that was   enabled in beta4 is now turned off. * Added some new Solaris notes to INSTALL (Koen Maris). * More work on --ip-win32 dynamic. 2004.01.27 -- Version 1.6-beta4 * For this beta, the Windows self-install is a debug version   and will run slower -- use only for testing. * Reverted the --ip-win32 default back to 'ipapi'   from 'dynamic'. * Added the offset parameter to '--ip-win32 dynamic' which   can be used to control the address of the masqueraded   DHCP server which replies to Windows DHCP requests. * Added a wait/nowait option to --inetd (nowait can only   be used with TCP sockets, TLS authentication, and over   a bridged configuration -- see FAQ for more info)   (Stefan `Sec` Zehl). * Added a build-time capability where TAP-Win32 driver   debug messages can be output by OpenVPN at --verb 6   or higher. 2004.01.20 -- Version 1.6-beta2 * Added ./configure --enable-iproute2 flag which   uses iproute2 instead of route + ifconfig --   this is necessary for the LEAF Linux distro   (Martin Hejl). * Added renewal-time and rebind-time to set of   DHCP options returned by the TAP-Win32 driver when   "--ip-win32 dynamic" is used. 2004.01.14 -- Version 1.6-beta1 * Fixed --proxy bug that sometimes caused plaintext   control info generated by the proxy prior to http   CONNECT method establishment to be incorrectly   parsed as OpenVPN data. * For Windows version, implemented the   "--ip-win32 dynamic" method and made it the default.   This method sets the TAP-Win32 adapter IP address   and netmask by replying to the kernel's DHCP queries.   See the man page for more detailed info. * Added --connect-retry parameter which controls   the time interval (in seconds) between connect()   retries when --proto tcp-client is used.  Previously,   this value was hardcoded to 5 seconds, and still   defaults as such. * --resolv-retry can now be used with a parameter   of "infinite" to retry indefinitely. * Added SSL_CTX_use_certificate_chain_file() to ssl.c   for support of multi-level certificate chains   (Sten Kalenda). * Fixed --tls-auth incompatibility with 1.4.x and earlier   versions of OpenVPN when the passphrase file is an   OpenVPN static key file (as generated by --genkey). * Added shell-escape support in config files using   the backslash character ("\") so that (for example)   double quotes can be passed to the shell. * Added "contrib" subdirectory on tarball, source zip,   and CVS containing user-submitted contributions. * Added an optional patch to the Redhat init script to   allow the configuration file directory to be a   multi-level directory hierarchy (Farkas Levente).   See contrib/multilevel-init.patch * Added some scripts and documentation on using   Linux "fwmark" iptables rules to enable   fine-grained routing control over the VPN   (Sean Reifschneider, <jafo@tummy.com>).   See contrib/openvpn-fwmarkroute-1.00 2003.11.20 -- Version 1.5.0 * Minor documentation changes. 2003.11.04 -- Version 1.5-beta14 * Fixed build problem with ./configure --disable-ssl   that was reported on Debian woody. * Fixed bug where --redirect-gateway could not be used   together with --resolv-retry. 2003.11.03 -- Version 1.5-beta13 * Added CRL (certificate revocation list) capability using   --crl-verify option (Stefano Bracalenti). * Added --replay-window option for variable replay-protection   window sizes. * Fixed --fragment bug which might have caused certain large   packets to be sent unfragmented. * Modified --secret and --tls-auth to permit different cipher and   HMAC keys to be used for each data flow direction.  Also   increased static key file size generated by --genkey from   1024 to 2048 bits, where 512 bits each are reserved for   send-HMAC, encrypt, receive-HMAC, and decrypt.  Key file forward   and backward compatibility is maintained.  See --secret option   documentation on the man page for more info. * Added --tls-remote option (Teemu Kiviniemi). * Fixed --tls-cipher documention regarding correct delimiter   usage (Teemu Kiviniemi). * Added --key-method option for selecting alternative data   channel key negotiation methods.  Method 1 is the default.   Method 2 has been added (see man page for more info). * Added French translation of HOWTO to web site   (Guillaume Lehmann). * Fixed problem caused by late resolver library load on   certain platforms when --resolv-retry and --chroot are   used together (Teemu Kiviniemi). * In TCP mode, all decryption or TLS errors will abort the current   connection (this is not done in UDP mode because UDP is   "connectionless"). * Fixed a TCP client reconnect bug that only occurs on the   BSDs, where connect() fails with an invalid argument.  This   bug was partially (but not completely) fixed in beta7. * Added "route_net_gateway" environmental variable which contains   the pre-existing default gateway address from the routing table   (there's no standard API for getting the default gateway, so   right now this feature only works on Windows or Linux). * Renamed the "route_default_gateway" enviromental variable to   "route_vpn_gateway" -- this is the remote VPN endpoint. * The special keywords vpn_gateway, net_gateway, and remote_host   can now be used for the network or gateway components of the   --route option.  See the man page for more info. * Added the --redirect-gateway option to configure the VPN   as the default gateway (implemented on Linux and Windows only). * Added the --http-proxy option with basic authentication   support for use in TCP client mode.  Successfully tested   using Squid as the HTTP proxy, with and without authentication. 2003.10.12 -- Version 1.5-beta12 * Fixed Linux-only bug in --mktun and --rmtun which was   introduced around beta8 or so, which would cause   an error such as "I don't recognize device tun0 as a   tun or tap device1". * Added --ifconfig-nowarn option to disable options   consistency warnings about --ifconfig parameters. * Don't allow any kind of sequence number backtracking or   message reordering when in TCP mode. * Changed beta naming convention to use '_' (underscore)   rather than '-' (dash) to pacify rpmbuild. 2003.10.08 -- Version 1.5-beta11 * Modified code in the Windows version which sets the IP address   and netmask of the TAP-Win32 adapter using the IP Helper API.   Most of the changes involve better error recovery when   the IP Helper API returns an error status.  See the   manual page entry on --ip-win32 for more info. 2003.10.08 -- Version 1.5-beta10 * Added getpass() function for Windows version so that --askpass   option works correctly (Stefano Bracalenti). * Added reboot advisory to end of Win32 install script. * Changed crypto code to use pseudo-random IVs rather than   carrying forward the IV state from the previous packet.   This is in response to item 2 in the following document:   http://www.openssl.org/~bodo/tls-cbc.txt which points   out weaknesses in TLS's use of the same IV carryforward   approach.  This change does not break protocol compatibility   with previous versions of OpenVPN. * Made a change to the crypto replay protection code to also   protect against certain kinds of packet reordering attacks.   This change does not break protocol compatibility with   previous versions of OpenVPN. * Added --ip-win32 option to provide several choices for   setting the IP address on the TAP-Win32 adapter. * #ifdefed out non-CBC crypto modes by default. * Added --up-delay option to delay TUN/TAP open and --up script   execution until after connection establishment.  This option   replaces the earlier windows-only option --tap-delay.    2003.10.01 -- Version 1.5-beta9 * Fixed --route-noexec bug where option was not parsed correctly. * Complain if --dev tun is specified without --ifconfig on Windows. * Fixed bug where TCP connections on windows would sometimes cause   an assertion failure. * Added a new flag to TAP-Win32 advanced properties that allows one   to set the adapter to be always "connected" even when an OpenVPN   process doesn't have it open.  The default behavior is to report   a media status of connected only when an OpenVPN process has the   adapter open. * Rebuilt the Windows self-install distribution with OpenSSL 0.9.7c   DLLs in response to an OpenSSL security advisory. 2003.09.30 -- Version 1.5-beta8 * Extended the --ifconfig option to work on tap devices as well   as tun devices. * Implemented the --ifconfig option for Windows, by calling the   netsh tool. * By default, do an "arp -d *" on Windows after TAP-Win32 open to   refresh the MAC cache.  This behaviour can be disabled with   --no-arp-del. * On Windows, allow the --dev-node parameter (which specifies   the name of the TAP-Win32 adapter) to be omitted in cases where   there is a single TAP-Win32 adapter on the system which can be   assumed to be the default. * Modified the diagnostic --verb 5 debugging level to print 'R'   for TCP/UDP read, 'W' for TCP/UDP write, 'r' for TUN/TAP read,   and 'w' for TUN/TAP write. * Conditionalize OpenBSD read_tun and write_tun based on tun or tap   mode. * Added IPv6 tun support to OpenBSD (Thomas Glanzmann). * Make the --enable-mtu-dynamic ./configure option enabled by   default. * Deprecated the --mtu-dynamic run-time option, in favor of   --fragment. * DNS names can now be used as --ifconfig parameters. * Significant work on TAP-Win32 driver to bring up to SMP standards. * On Windows, fixed dangling IRP problem if TAP-Win32 driver is   unloaded or disabled, while a user-space process has it open. * On Windows, if --tun-mtu is not specified, it will be read from   the TAP-Win32 driver via ioctl. * On Windows, added TAP-Win32 driver status info to "F2" keyboard   signal (only when run from a console window). * Added --mssfix option to control TCP MSS size (YANO Hirokuni). * Renamed --mtu-dynamic option to --fragment to more accurately   reflect its function.  Fragment accepts a single parameter which   is the upper limit on acceptable UDP packet size. * Changed default --tun-mtu-extra parameter to 32 from 64. * Eliminated reference to malloc.o in configure.ac. * Added tun device emulation to the TAP-Win32 driver. * Added --route and related options. * Added init script for SuSE Linux (Frank Plohmann). * Extended option consistency check between peers to function   in all crypto modes, including static-key and cleartext modes.   Previously only TLS mode was supported.  Disable with   --disable-occ. * Overall, increased the amount of configuration option sanity   checking, especially of networking parameters. * Added --mtu-test option for empirical MTU measurement. * Added Windows-only option --tap-delay to not set the TAP-Win32   adapter media state to 'connected' until TCP/UDP connection   establishment with peer. * Slightly modified --route/--route-delay semantics so that when   --route is given without --route-delay, routes are added   immediately after tun/tap device open.  When --route-delay is   specified, routes will be added n seconds after connection   initiation, where n is the --route-delay parameter (which   can be set to 0). * Made TCP framing error into a non-fatal error that triggers a   connection reset. 2003.08.28 -- Version 1.5-beta7 * Fixed bug that caused OpenVPN not to respond to exit/restart   signals when --resolv-retry is used and a local or remote DNS   name cannot be resolved. * Exported a series of environmental variables with useful   info for scripts.  See man page for more info.  Based   on a suggestion by Anthony Ciaravalo. * Moved TCP/UDP socket bind to a point in the initialization   before the --up script gets called.  This is desirable   because (a) a socket bind failure will happen before   daemonization, allowing an error status code to be returned   to the shell and (b) the possibility is eliminated of a   socket bind failure causing the --up script to be run   but not the --down script.  This change has a side effect   that --resolv-retry will no longer work with --local. * Fixed bug where if an OpenVPN TCP server went down and back   up again, Solaris or FreeBSD clients would fail to reconnect   to it. * Fixed bug that prevented OpenVPN from being run by   inetd/xinetd in TCP mode. * Added --log and --log-append options for logging messages to   a file. * On Windows, check that the current user is a member of the   Administrator group before attempting install or uninstall. 2003.08.16 -- Version 1.5-beta6 * Fixed TAP-Win32 driver to properly increment the Rx/Tx count. 2003.08.14 -- Version 1.5-beta5 * Added user-configurability of the TAP-Win32 adapter MTU   through the adapter advanced properties page. * Added Windows Service support. * On Windows, added file association and right-clickability   for .ovpn files (OpenVPN config files). 2003.08.05 -- Version 1.5-beta4 * Extra refinements and error checking added to Windows   NSIS install script. 2003.08.05 -- Version 1.5-beta3 * Added md5.h include to crypto.c to fix build problem on   OpenBSD. * Created a Win32 installer using NSIS. * Removed DelService command from TAP-Win32 INF file.  It appears   to be not necessary and it interfered with the ability to   uninstall and reinstall the driver without needing to reboot. * On Windows version, added "addtap" and "deltapall" batch   files to add and delete TAP-Win32 adapter instances. 2003.07.31 -- Version 1.5-beta2 * Renamed INSTALL.w32 to INSTALL-win32.txt and reformatted   in Windows ASCII so it's easier to click and view. * Added postscript and PDF versions of the HOWTO to the web   site (C R Zamana). * Merged Michael Clarke's stability patch into TAP-Win32   driver which appears to fix the suspend/resume driver bug   and significantly improve driver stability. * Added Christof Meerwald's Media Status patch to the   TAP-Win32 driver which shows the TAP adapter to be   disconnected when OpenVPN is not running. * Moved socket connect and TCP server listen code to a later   point in openvpn() function so that the TCP server listen   state is entered after daemonization. * Added keyboard shortcuts to simulate signals in the Windows   version, see the window title bar for descriptions. 2003.07.24 -- Version 1.5-beta1 * Added TCP support via the new --proto option. * Renamed udp-centric options such as --udp-mtu to   --link-mtu (old option names preserved for compatibility). * Ported to Windows 2000 + XP using mingw and a TAP driver   derived from the Cipe-Win32 project by Damion K. Wilson. * Added --show-adapters flag for windows version. * Reworked the SSL/TLS packet acknowledge code to better   handle certain corner cases. * Turned off the default enabling of IP forwarding in the   sample-scripts/openvpn.init script for Redhat.   Forwarding can be enabled by users in their --up scripts   or firewall config. * Added --up-restart option based on suggestion from Sean   Reifschneider. * If --dev tap or --dev-type tap is specified, --tun-mtu   defaults to 1500 and --tun-mtu-extra defaults to 64. * Enabled --verb 5 debugging mode that prints 'R' and 'W'   for each packet read or write on the TCP/UDP socket. 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 certain internal symbol names   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. * All changes maintain protocol compatibility   with OpenVPN versions since 1.1.0, however default   MTU changes will require setting the MTU explicitly   by command line option, if you want 1.3.0 to   communicate with previous versions. 2002.06.12 -- Version 1.2.1 * Added --ping-restart option to restart   connection on ping timeout using SIGUSR1   logic (Matthias Andree). * Added --persist-tun, --persist-key,   --persist-local-ip, and --persist-remote-ip   options for finer-grained control over SIGUSR1   and --ping-restart restarts.  To   replicate previous SIGUSR1 functionality,   use --persist-remote-ip. * Changed residual IV fetching code to take   IV from tail of ciphertext. * Added check to make sure that CFB or OFB   cipher modes are only used with SSL/TLS   authentication mode, and added a caveat   to INSTALL. * Changed signal handling during initialization   (including re-initialization during restarts)   to exit on SIGTERM or SIGINT and ignore other   signals which would ordinarily be caught. * Added --resolv-retry option to allow   retries on hostname resolution. * Expanded the --float option to also   allow dynamic changes in source port number   on incoming datagrams. * Added --mute option to limit repetitive   logging of similar message types. * Added --group option to downgrade GID   after initialization. * Try to set ifconfig path automatically   in configure. * Added --ifconfig code for Mac OS X   (Christoph Pfisterer). * Moved "Peer Connection Initiated" message   to --verb level 1. * Successfully tested with   OpenSSL 0.9.7 Beta 1 and AES cipher. * Added RPM notes to INSTALL. * Added ACX_PTHREAD (from the autoconf   macro archive) to configure.ac   to figure out the right pthread   options for a given platform. * Broke out macro definitions from   configure.ac to acinclude.m4. * Minor changes to docs and HOWTO. * All changes maintain protocol compatibility   with OpenVPN versions since 1.1.0. 2002.05.22 -- Version 1.2.0 * Added configuration file support via   the --config option. * Added pthread support to improve latency.   With pthread support, OpenVPN   will offload CPU-intensive tasks such as RSA   key number crunching to a background thread   to improve tunnel packet forwarding   latency.  pthread support can be enabled   with the --enable-pthread configure option.   Pthread support is currently available   only for Linux and Solaris. * Added --dev-type option so that tun/tap   device names don't need to begin with   "tun" or "tap". * Added --writepid option to write main   process ID to a file. * Numerous portability fixes to ease   porting to other OSes including changing   all network types to uint8_t and uint32_t,   and not assuming that time_t is 32 bits. * Backported to OpenSSL 0.9.5. * Ported to Solaris. * Finished OpenBSD port except for   pthread support. * Added initialization script:   sample-scripts/openvpn.init   (Douglas Keller) * Ported to Mac OS X (Christoph Pfisterer). * Improved resilience to DoS attacks when   TLS mode is used without --remote or   --tls-auth, or when --float is used   with --remote.  Note however that the best   defense against DoS attacks in TLS mode   is to use --tls-auth. * Eliminated automake/autoconf dependency   for non-developers. * Ported configure.in to configure.ac   and autoconf 2.50+. * SIGHUP signal now causes OpenVPN to restart   and re-read command line and or config file,   in conformance with canonical daemon behaviour. * SIGUSR1 now does what SIGHUP did in   version 1.1.1 and earlier -- close and reopen   the UDP socket for use when DHCP changes   host's IP address and preserve most recently   authenticated peer address without rereading   config file. * SIGUSR2 added -- outputs current statistics,   including compression statistics. * All changes maintain protocol compatibility   with 1.1.1 and 1.1.0. 2002.04.22 -- Version 1.1.1 * Added --ifconfig option to automatically configure   TUN device. * Added inactivity disconnect (--inactive   and --ping-exit options). * Added --ping option to keep stateful firewalls   from timing out. * Added sanity check to command line parser to   err if any TLS options are used in non-TLS mode. * Fixed build problem with compiler environments that   define printf as a macro. * Fixed build problem on linux systems that have   an integrated TUN/TAP driver but lack the persistent   tunnel feature (TUNSETPERSIST).  Some linux kernels   >= 2.4.0 and < 2.4.7 fall into this category. * Changed all calls to EVP_CipherInit to use explicit   encrypt/decrypt mode in order to fix problem with   IDEA-CBC and AES-256-CBC ciphers. * Minor changes to control channel transmit limiter   algorithm to fix problem where TLS control channel   might not renegotiate within the default 60 second window. * Simplified man page examples by taking advantage   of the new --ifconfig option. * Minor changes to configure.in to check more   rigourously for OpenSSL 0.9.6 or greater. * Put back openvpn.spec, eliminated   openvpn.spec.in. * Modified openvpn.spec to reflect new automake-based   build environment (Bishop Clark). * Other documentation changes. * Added --test-crypto option for debugging. * Added "missing" and "mkinstalldirs" automake   support files. 2002.04.09 -- Version 1.1.0 * Strengthened replay protection and IV handling,   extending it fully to both static key and   TLS dynamic key exchange modes. * Added --mlock option to disable paging and ensure that key   material and tunnel data is never paged to disk. * Added optional traffic shaping feature to cap the maximum   data rate of the tunnel. * Converted to automake (The Platypus Brothers 2002-04-01). * Ported to OpenBSD by Janne Johansson. * Added --tun-af-inet option to work around an incompatibility   between Linux and BSD tun drivers. * Sequence number-based replay protection using the   IPSec sliding window model is now the default,   disable with --no-replay. * Explicit IV is now the default, disable with --no-iv. * Disabled all cipher modes except CBC, CFB, and OFB. * In CBC mode, use explicit IV and carry forward residuals,   using IPSec model. * In CFB/OFB mode, IV is timestamp, sequence number. * Eliminated --packet-id, --timestamp, and max-delta parameter to   the --tls-auth option as they are now supplanted by improved   replay code which is enabled by default. * Eliminated --rand-iv as it is now obsolete with improved   IV code. * Eliminated --reneg-err option as it increases vulnerability   to DoS attacks. * Added weak key check for DES ciphers. * --tls-freq option is no longer specified on the command line,   instead it now inherits its parameter from the   --tls-timeout option. * Fixed bug that would try to free memory on exit that was   never malloced if --comp-lzo was not specified. * Errata fixed in the man page examples: "test-ca" should be   "tmp-ca". * Updated manual page. * Preliminary work in porting to OpenSSL 0.9.7. * Changed license to allowing linking with OpenSSL. 2002.03.29 -- Version 1.0.3 * Fixed a problem in configure with library ordering on the   command line. 2002.03.28 -- Version 1.0.2 * Improved the efficiency of the inner event loop. * Fixed a minor bug with timeout handling. * Improved the build system to build on RH 6.2 through 7.2. * Added an openvpn.spec file for RPM builders (Bishop Clark). 2002.03.23 -- Version 1.0 * Added TLS-based authentication and key exchange. * Added gremlin mode to stress test. * Wrote man page. 2001.12.26 -- Version 0.91 * Added any choice of cipher or HMAC digest. 2001.5.13 -- Version 0.90 * Initial release. * IP tunnel over UDP, with blowfish cipher and SHA1 HMAC signature.