vNEXT: Call setgroups() before setgid() (fixes potential privilege escalation). (Lars Vogdt) v1.16: 11FEB2014 Probes made more resilient, to incoming data containing NULLs. Also made them behave properly when receiving too short packets to probe on the first incoming packet. (Ondrej Kuzník) Libcap support: Keep only CAP_NET_ADMIN if started as root with transparent proxying and dropping priviledges (enable USELIBCAP in Makefile). This avoids having to mess with filesystem capabilities. (Sebastian Schmidt/yath) Fixed bugs related to getpeername that would cause sslh to quit erroneously (getpeername can return actual errors if connections are dropped before getting to getpeername). Set IP_FREEDBIND if available to bind to addresses that don't yet exist. v1.15: 27JUL2013 Added --transparent option for transparent proxying. See README for iptables magic and capability management. Fixed bug in sslh-select: if number of opened file descriptor became bigger than FD_SETSIZE, bad things would happen. Fixed bug in sslh-select: if socket dropped while deferred_data was present, sslh-select would crash. Increased FD_SETSIZE for Cygwin, as the default 64 is too low for even moderate load. v1.14: 21DEC2012 Corrected OpenVPN probe to support pre-shared secret mode (OpenVPN port-sharing code is... wrong). Thanks to Kai Ellinger for help in investigating and testing. Added an actual TLS/SSL probe. Added configurable --on-timeout protocol specification. Added a --anyprot protocol probe (equivalent to what --ssl was). Makefile respects the user's compiler and CFLAG choices (falling back to the current values if undefined), as well as LDFLAGS. (Michael Palimaka) Added "After" and "KillMode" to systemd.sslh.service (Thomas Weißschuh). Added LSB tags to etc.init.d.sslh (Thomas Varis). v1.13: 18MAY2012 Write PID file before dropping privileges. Added --background, which overrides 'foreground' configuration file setting. Added example systemd service file from Archlinux in scripts/ https://projects.archlinux.org/svntogit/community.git/tree/trunk/sslh.service?h=packages/sslh (Sébastien Luttringer) v1.12: 08MAY2012 Added support for configuration file. New protocol probes can be defined using regular expressions that match the first packet sent by the client. sslh now connects timed out connections to the first configured protocol instead of 'ssh' (just make sure ssh is the first defined protocol). sslh now tries protocols in the order in which they are defined (just make sure sslh is the last defined protocol). v1.11: 21APR2012 WARNING: defaults have been removed for --user and --pidfile options, update your start-up scripts! No longer stop sslh when reverse DNS requests fail for logging. Added HTTP probe. No longer create new session if running in foreground. No longer default to changing user to 'nobody'. If --user isn't specified, just run as current user. No longer create PID file by default, it should be explicitely set with --pidfile. No longer log to syslog if in foreground. Logs are instead output to stderr. The four changes above make it straightforward to integrate sslh with systemd, and should help with launchd. v1.10: 27NOV2011 Fixed calls referring to sockaddr length so they work with FreeBSD. Try target addresses in turn until one works if there are several (e.g. "localhost:22" resolves to an IPv6 address and an IPv4 address and sshd does not listen on IPv6). Fixed sslh-fork so killing the head process kills the listener processes. Heavily cleaned up test suite. Added stress test t_load script. Added coverage (requires lcov). Support for XMPP (Arnaud Gendre). Updated README.MacOSX (Aaron Madlon-Kay). v1.9: 02AUG2011 WARNING: This version does not work with FreeBSD and derivatives! WARNING: Options changed, you'll need to update your start-up scripts! Log format changed, you'll need to update log processing scripts! Now supports IPv6 throughout (both on listening and forwarding) Logs now contain IPv6 addresses, local forwarding address, and resolves names (unless --numeric is specified). Introduced long options. Options -l, -s and -o replaced by their long counterparts. Defaults for SSL and SSH options suppressed (it's legitimate to want to use sslh to mux OpenVPN and tinc while not caring about SSH nor SSL). Bind to multiple addresses with multiple -p options. Support for tinc VPN (experimental). Numeric logging option. v1.8: 15JUL2011 Changed log format to make it possible to link connections to subsequent logs from other services. Updated CentOS init.d script (Andre Krajnik). Fixed zombie issue with OpenBSD (The SA_NOCLDWAIT flag is not propagated to the child process, so we set up signals after the fork.) (François FRITZ) Added -o "OpenVPN" and OpenVPN probing and support. Added single-threaded, select(2)-based version. Added support for "Bold" SSH clients (clients that speak first) Thanks to Guillaume Ricaud for spotting a regression bug. Added -f "foreground" option. Added test suite. (only tests connexions. No test for libwrap, setsid, setuid and so on) and corresponding 'make test' target. Added README.MacOSX (thanks Aaron Madlon-Kay) Documented use with proxytunnel and corkscrew in README. v1.7: 01FEB2010 Added CentOS init.d script (Andre Krajnik). Fixed default ssl address inconsistancy, now defaults to "localhost:443" and fixed documentation accordingly (pointed by Markus Schalke). Children no longer bind to the listen socket, so parent server can be stopped without killing an active child (pointed by Matthias Buecher). Inetd support (Dima Barsky). v1.6: 25APR2009 Added -V, version option. Install target directory configurable in Makefile Changed syslog prefix in auth.log to "sslh[%pid]" Man page new 'make install' and 'make install-debian' targets PID file now specified using -P command line option Actually fixed zombie generation (the v1.5 patch got lost, doh!) v1.5: 10DEC2008 Fixed zombie generation. Added support scripts (), Makefile. Changed all 'connexions' to 'connections' to please pesky users. Damn users. v1.4: 13JUL2008 Added libwrap support for ssh service (Christian Weinberger) Only SSH is libwraped, not SSL. v1.3: 14MAY2008 Added parsing for local interface to listen on Changed default SSL connection to port 442 (443 doesn't make sense as a default as we're already listening on 443) Syslog incoming connections v1.2: 12MAY2008 Fixed compilation warning for AMD64 (Thx Daniel Lange) v1.1: 21MAY2007 Making sslhc more like a real daemon: * If $PIDFILE is defined, write first PID to it upon startup * Fork at startup (detach from terminal) (thanks to http://www.enderunix.org/docs/eng/daemon.php -- good checklist) * Less memory usage (?) v1.0: Basic functionality: privilege dropping, target hostnames and ports configurable.