home *** CD-ROM | disk | FTP | other *** search
- stunnel Universal SSL tunnel
-
- Version 4.04, 2003.01.12, urgency: MEDIUM:
- * New feature sponsored by SURFnet http://www.surfnet.nl/
- - Encrypted private key can be used with Win32 GUI.
- * New features
- - New 'options' configuration option to setup
- OpenSSL library hacks with SSL_CTX_set_options().
- - 'service' option also changes the name for
- TCP Wrappers access control in inetd mode.
- - Support for BeOS (thx to Mike I. Kozin <mik@sbor.net>)
- - SSL is negotiated before connecting remote host
- or spawning local process whenever possible.
- - REMOTE_HOST variable is always placed in the
- enrivonment of a process spawned with 'exec'.
- - Whole SSL error stack is dumped on errors.
- - 'make cert' rule is back (was missing since 4.00).
- - Manual page updated (special thanks to Brian Hatch).
- - TODO updated.
- * Bugfixes
- - Major code cleanup (thx to Steve Grubb <linux_4ever@yahoo.com>).
- - Unsafe functions are removed from SIGCHLD handler.
- - Several bugs in auth_user() fixed.
- - Incorrect port when using 'local' option fixed.
- - OpenSSL tools '-rand' option is no longer directly
- used with a device (like '/dev/urandom').
- Temporary random file is created with 'dd' instead.
- * DLLs for OpenSSL 0.9.7.
-
- Version 4.03, 2002.10.27, urgency: HIGH:
- * NT Service (broken since 4.01) is operational again.
- * Memory leak in FORK environments fixed.
- * sigprocmask() mistake corrected.
- * struct timeval is reinitialized before select().
- * EAGAIN handled in client.c for AIX.
- * Manual page updated.
-
- Version 4.02, 2002.10.21, urgency: HIGH:
- * Serious bug in ECONNRESET handling fixed.
-
- Version 4.01, 2002.10.20, urgency: MEDIUM:
- * New features
- - OpenVMS support.
- - Polish manual and some manual updates.
- - 'service' option added on Win32 platform.
- - Obsolete FAQ has been removed.
- - Log file is created with 0640 mode.
- - exec->connect service sections (need more testing).
- * Bugfixes
- - EINTR ingored in main select() loop.
- - Fixed problem with stunnel closing connections on
- TIMEOUTclose before all the data is sent.
- - Fixed EWOULDBLOCK on writesocket problem.
- - Potential DOS in Win32 GUI fixed.
- - Solaris compilation problem fixed.
- - Libtool configuration problems fixed.
- - Signal mask is cleared just before exec in local mode.
- - Accepting sockets and log file descriptors are no longer
- leaked to the child processes.
- Special thanks to Hans Werner Strube for his testing effort.
- Special thanks to Steve Grubb for the source code audit.
-
- Version 4.00, 2002.08.30, urgency: LOW:
- * New features sponsored by MAXIMUS http://www.maximus.com/
- - New user interface (config file).
- - Single daemon can listen on multiple ports, now.
- - Native Win32 GUI added.
- - Native NT/2000/XP service added.
- - Delayed DNS lookup added.
- * Other new features
- - All the timeouts are now configurable including
- TIMEOUTclose that can be set to 0 for MSIE and other
- buggy clients that do not send close_notify.
- - Stunnel process can be chrooted in a specified directory.
- - Numerical values for setuid() and setgid() are allowed, now.
- - Confusing code for setting certificate defaults introduced in
- version 3.8p3 was removed to simplify stunnel setup.
- There are no built-in defaults for CApath and CAfile options.
- - Private key file for a certificate can be kept in a separate
- file. Default remains to keep it in the cert file.
- - Manual page updated.
- - New FHS-compatible build system based on automake and libtool.
- * Bugfixes
- - `SSL socket closed on SSL_write' problem fixed.
- - Problem with localtime() crashing Solaris 8 fixed.
- - Problem with tcp wrappers library detection fixed.
- - Cygwin (http://www.cygwin.com/) support added.
- - __svr4__ macro defined for Sun C/C++ compiler.
- * DLLs for OpenSSL 0.9.6g.
-
- Version 3.22, 2001.12.20, urgency: HIGH:
- * Format string bug fixed in protocol.c
- smtp, pop3 and nntp in client mode were affected.
- (stunnel clients could be attacked by malicious servers)
- * Certificate chain can be supplied with -p option or in stunnel.pem.
- * Problem with -r and -l options used together fixed.
- * memmove() instead of memcpy() is used to move data in buffers.
- * More detailed information about negotiated ciphers is printed.
- * New ./configure options: "--enable-no-rsa" and "--enable-dh".
-
- Version 3.21c, 2001.11.11, urgency: LOW:
- * autoconf scripts upgraded to version 2.52.
- * Problem with pthread_sigmask on Darwin fixed (I hope).
- * Some documentation typos corrected.
- * Attempt to ignore EINTR in transfer().
- * Shared library version reported on startup.
- * DLLs for OpenSSL 0.9.6b.
-
- Version 3.21b, 2001.11.03, urgency: MEDIUM:
- * File descriptor leak on failed connect() fixed.
-
- Version 3.21a, 2001.10.31, urgency: MEDIUM:
- * Small bug in Makefile fixed.
-
- Version 3.21, 2001.10.31, urgency: MEDIUM:
- * Problem with errno and posix threads fixed.
- * It is assumed that system has getopt() if it has getopt.h header file.
- * SSL_CLIENT_DN and SSL_CLIENT_I_DN environment variables set in local mode
- (-l) process. This feature doesn't work if
- client mode (-c) or protocol negotiation (-n) is used.
- * Winsock error descriptions hardcoded (English version only).
- * SetConsoleCtrlHandler() used to handle CTRL+C, logoff and shutdown on Win32.
- * Stunnel always requests peer certificate with -v 0.
- * sysconf()/getrlimit() used to calculate number of clients allowed.
- * SSL mode changed for OpenSSL >= 0.9.6.
- * close-on-exec option used to avoid socket inheriting.
- * Buffer size increased from 8KB to 16KB.
- * fdscanf()/fdprintf() changes:
- - non-blocking socket support,
- - timeout after 1 minute of inactivity.
- * auth_user() redesigned to force 1 minute timeout.
- * Some source arrangement towards 4.x architecture.
- * No need for "goto" any more.
- * New Makefile "test" rule. It performs basic test of
- standalone/inetd, remote/local and server/client mode.
- * pop3 server mode support added.
-
- Version 3.20, 2001.08.15, urgency: LOW:
- * setsockopt() optlen set according to the optval for Solaris.
- * Minor NetBSD compatibility fixes by Martti Kuparinen.
- * Minor MSVC6 compatibility fixes by Patrick Mayweg.
- * SSL close_notify timeout reduced to 10 seconds of inactivity.
- * Socket close instead of reset on close_notify timeout.
- * Some source arrangement and minor bugfixes.
-
- Version 3.19, 2001.08.10, urgency: MEDIUM:
- * Critical section added around non MT-safe TCP Wrappers code.
- * Problem with "select: Interrupted system call" error fixed.
- * errno replaced with get_last_socket_error() for Win32.
- * Some FreeBSD/NetBSD patches to ./configure from Martti Kuparinen.
- * Local mode process pid logged.
- * Default FQDN (localhost) removed from stunnel.cnf
- * ./configure changed to recognize POSIX threads library on OSF.
- * New -O option to set socket options.
-
- Version 3.18, 2001.07.31, urgency: MEDIUM:
- * MAX_CLIENTS is calculated based on FD_SETSIZE, now.
- * Problems with closing SSL in transfer() fixed.
- * -I option to bind a static local IP address added.
- * Debug output of info_callback redesigned.
-
- Version 3.17, 2001.07.29, urgency: MEDIUM:
- * Problem with coredump on exit with active threads fixed.
- * Timeout for transfer() function added:
- - 1 hour if socket is open for read
- - 1 minute if socket is closed for read
-
- Version 3.16, 2001.07.22, urgency: MEDIUM:
- * Some transfer() bugfixes/improvements.
- * STDIN/STDOUT are no logner assumed to be non-socket decriptors.
- * Problem with --with-tcp-wrappers patch fixed.
- * pop3 and nntp support bug fixed by Martin Germann.
- * -o option to append log messages to a file added.
- * Changed error message for SSL error 0.
-
- Version 3.15, 2001.07.15, urgency: MEDIUM:
- * Serious bug resulting in random transfer() hangs fixed.
- * Separate file descriptors are used for inetd mode.
- * -f (foreground) logs are now stamped with time.
- * New ./configure option: --with-tcp-wrappers by Brian Hatch.
- * pop3 protocol client support (-n pop3) by Martin Germann.
- * nntp protocol client support (-n nntp) by Martin Germann.
- * RFC 2487 (smtp STARTTLS) client mode support.
- * Transparency support for Tru64 added.
- * Some #includes for AIX added.
-
- Version 3.14, 2001.02.21, urgency: LOW:
- * Pidfile creation algorithm has been changed.
-
- Version 3.13, 2001.01.25, urgency: MEDIUM:
- * pthread_sigmask() argument in sthreads.c corrected.
- * OOB data is now handled correctly.
-
- Version 3.12, 2001.01.24, urgency: LOW:
- * Attempted to fix problem with zombies in local mode.
- * Patch for 64-bit machines by Nalin Dahyabhai <nalin@redhat.com> applied.
- * Tiny bugfix for OSF cc by Dobrica Pavlinusic <dpavlin@rot13.org> added.
- * PORTS file updated.
-
- Version 3.11, 2000.12.21, urgency: MEDIUM:
- * New problem with zombies fixed.
- * Attempt to be integer-size independed.
- * SIGHUP handler added.
-
- Version 3.10, 2000.12.19, urgency: MEDIUM:
- * Internal thread synchronization code added.
- * libdl added to stunnel dependencies if it exists.
- * Manpage converted to sdf format.
- * stunnel deletes pid file before attempting to create it.
- * Documentation updates.
- * -D option now takes [facility].level as argument. 0-7 still supported.
- * Problems with occasional zombies in FORK mode fixed.
- * 'stunnel.exe' rule added to Makefile.
- You can cross-compile stunnel.exe on Unix, now.
- I'd like to be able to compile OpenSSL this way, too...
-
- Version 3.9, 2000.12.13, urgency: HIGH:
- * Updated temporary key generation:
- - stunnel is now honoring requested key-lengths correctly,
- - temporary key is changed every hour.
- * transfer() no longer hangs on some platforms.
- Special thanks to Peter Wagemans for the patch.
- * Potential security problem with syslog() call fixed.
-
- Version 3.8p4, 2000.06.25 bri@stunnel.org:
- * fixes for Windows platform
-
- Version 3.8p3, 2000.06.24 bri@stunnel.org:
- * Compile time definitions for the following:
- --with-cert-dir
- --with-cert-file
- --with-pem-dir
- --enable-ssllib-cs
- * use daemon() function instead of daemonize, if available
- * fixed FreeBSD threads checking (patch from robertw@wojo.com)
- * added -S flag, allowing you to choose which default verify
- sources to use
- * relocated service name output logging until after log_open.
- (no longer outputs log info to inetd socket, causing bad SSL)
- * -V flag now outputs the default values used by stunnel
- * Removed DH param generation in Makefile.in
- * Moved stunnel.pem to sample.pem to keep people from blindly using it
- * Removed confusing stunnel.pem check from Makefile.
-
- * UPGRADE NOTE: this version seriously changes several previous stunnel
- default behaviours. There are no longer any default cert file/dirs
- compilied into stunnel, you must use the --with-cert-dir and
- --with-cert-file configure arguments to set these manually, if desired.
- Stunnel does not use the underlying ssl library defaults by default
- unless configured with --enable-ssllib-cs. Note that these can always
- be enabled at run time with the -A,-a, and -S flags.
- Additionally, unless --with-pem-dir is specified at compile time,
- stunnel will default to looking for stunnel.pem in the current directory.
-
- Version 3.8p2, 2000.06.13 bri@stunnel.org:
- * Fixes for Win32 platform
- * Minor output formatting changes
- * Fixed version number in files
-
- Version 3.8p1, 2000.06.11 bri@stunnel.org:
- * Added rigerous PRNG seeding
- * PID changes (and related security-fix)
- * Man page fixes
- * Client SSL Session-IDs now used
- * -N flag to specify tcpwrapper service name
-
- Version 3.8, 2000.02.24:
- * Checking for threads in c_r library for FreeBSD.
- * Some compatibility fixes for Ultrix.
- * configure.in has been cleaned up.
- Separate directories for SSL certs and SSL libraries/headers
- are no longer supported. SSL ports maintainers should create
- softlinks in the main openssl directory if necessary.
- * Added --with-ssl option to specify SSL directory.
- * Added setgid (-g) option.
- (Special thanks to Brian Hatch for his feedback and support)
- * Added pty.c based on a Public Domain code by Tatu Ylonen
- * Distribution files are now signed with GnuPG
-
- Version 3.7, 2000.02.10:
- * /usr/pkg added to list of possible SSL directories for pkgsrc installs
- of OpenSSL under NetBSD.
- * Added the -s option, which setuid()s to the specified user when running
- in daemon mode. Useful for cyrus imapd.
- (both based on patch by George Coulouris)
- * PTY code ported to Solaris. The port needs some more testing.
- * Added handler for SIGINT.
- * Added --with-random option to ./configure script.
- * Fixed some problems with autoconfiguration on Solaris and others.
- It doesn't use config.h any more.
- * /var/run changed to @localstatedir@/stunnel for better portability.
- The directory is chmoded a=rwx,+t.
- * FAQ has been updated.
-
- 3.6 2000.02.03 Automatic RFC 2487 detection based on patch by
- Pascual Perez and Borja Perez.
- Non-blocking sockets not used by default.
- DH support is disabled by default.
- (both can be enabled in ssl.c)
-
- 3.5 2000.02.02 Support for openssl 0.9.4 added.
- /usr/ssl added to configure by Christian Zuckschwerdt.
- Added tunneling for PPP through the addition of PTY
- handling, and some documentation.
-
- 3.4a 1999.07.13 (bugfix release)
- Problem with cipher negotiation fixed.
- setenv changed to putenv.
-
- 3.4 1999.07.12 Local transparent proxy added with LD_PRELOADed shared library.
- DH code rewritten.
- Added -C option to set cipher list.
- stderr fflushed after fprintf().
- Minor portability bugfixes.
- Manual updated (but still not perfect).
-
- 3.3 1999.06.18 Support for openssl 0.9.3 added.
- Generic support for protocol negotiation added (protocol.c).
- SMTP protocol negotiation support for Netscape client added.
- Transparent proxy mode (currently works on Linux only).
- SO_REUSEADDR enabled on listening socket in daemon mode.
- ./configure now accepts --prefix parameter.
- -Wall is only used with gcc compiler.
- Makefile.in and configure.in updated.
- SSL-related functions moved to a separate file.
- vsprintf changed to vsnprintf in log.c on systems have it.
- Pidfile in /var/run added for daemon mode.
- RSAref support fix (not tested).
- Some compatibility fixes for Solaris and NetBSD added.
-
- 3.2 1999.04.28 RSAref support (not tested).
- Added full duplex with non-blocking sockets.
- RST sent instead of FIN on peer error (on error peer
- socket is reset - not just closed).
- RSA temporary key length changed back to 512 bits to fix
- problem with Netscape.
- Added NO_RSA for US citizens having problems with patents.
-
- 3.1 1999.04.22 Changed -l syntax (first argument specified is now argv[0]).
- Fixed problem with options passed to locally executed daemon.
- Fixed problem with ':' passed to libwrap in a service name:
- - ':' has been changed to '.';
- - user can specify his own service name as an argument.
- RSA temporary key length changed from 512 to 1024 bits.
- Added safecopy to avoid buffer overflows in stunnel.c.
- Fixed problems with GPF after unsuccessful resolver call
- and incorrect parameters passed to getopt() in Win32.
- FAQ updated.
-
- 3.0 1999.04.19 Some bugfixes.
- FAQ added.
-
- 3.0b7 1999.04.14
- WIN32 native port fixed (looks quite stable).
- New transfer() function algorithm.
- New 'make cert' to be compatible with openssl-0.9.2b.
- Removed support for memory leaks debugging.
-
- 3.0b6 1999.04.01
- Fixed problems with session cache (by Adam).
- Added client mode session cache.
- Source structure, autoconf script and Makefile changed.
- Added -D option to set debug level.
- Added support for memory leaks debugging
- (SSL library needs to be compiled with -DMFUNC).
-
- 3.0b5 1999.03.25
- Lots of changes to make threads work.
- Peer (client and server) authentication works!
- Added -V option to display version.
-
- 3.0b4 1999.03.22
- Early POSIX threads implementation.
- Work on porting to native Win32 application started.
-
- 3.0b3 1999.03.05
- Improved behavior on heavy load.
-
- 3.0b2 1999.03.04
- Fixed -v parsing bug.
-
- 3.0b1 1999.01.18
- New user interface.
- Client mode added.
- Peer certificate verification added (=strong authentication).
- WIN32 port added.
- Other minor problems fixed.
-
- 2.1 1998.06.01 Few bugs fixed.
-
- 2.0 1998.05.25 Remote mode added!
- Standalone mode added!
- tcpd functionality added by libwrap utilization.
- DH callbacks removed by kravietZ.
- bind loopback on Intel and other bugs fixed by kravietZ.
- New manual page by kravietZ & myself.
-
- 1.6 1998.02.24 Linux bind fix.
- New TODO ideas!
-
- 1.5 1998.02.24 make_sockets() implemented with Internet sockets instead
- of Unix sockets for better compatibility.
- (i.e. to avoid random data returned by getpeername(2))
- This feature can be disabled in stunnel.c.
-
- 1.4 1998.02.16 Ported to HP-UX, Solaris and probably other UNIXes.
- Autoconfiguration added.
-
- 1.3 1998.02.14 Man page by Pawel Krawczyk <kravietz@ceti.com.pl> added!
- Copyrights added.
- Minor errors corrected.
-
- 1.2 1998.02.14 Separate certificate for each service added.
- Connection logging support.
-
- 1.1 1998.02.14 Callback functions added by Pawel Krawczyk
- <kravietz@ceti.com.pl>.
-
- 1.0 1998.02.11 First version with SSL support
- - special thx to Adam Hernik <adas@infocentrum.com>.
-
- 0.1 1998.02.10 Testing skeleton.
-
-