[sslh] sslh v1.22 released

[Yves Rutschle]

Hmmm again with the appropriate subject line... sorry about
that...

On Tue, Aug 17, 2021 at 08:43:08PM +0000, Yves Rutschle wrote:
> Hello all,
> 
> sslh-v1.22 is now available. Here's the ChangeLog:
> 
> 
> 	sslh-select now supports UDP protocols.
> 	Probes specified in the `protocols`
> 	configuration entry are tried on incoming packets,
> 	TCP or UDP, and forwarded based on the input
> 	protocol (an incoming TCP connection will be
> 	forwarded as TCP, and same with UDP).
> 	This has been tested with DNS as shown in udp.cfg:
> 	incoming packets that contain my domain name are
> 	assumed to be a DNS request and forwarded
> 	accordingly. Note this could cause problems if
> 	combined with incoming TLS with SNI.  UDP clients
> 	and servers need to agree on the IPv4/IPv6 they use:
> 	use the same protocol on all sides! Often, this
> 	means explicitely using 'ip4-localhost'.
> 	UDP sender-receiver pairs (connections, so to speak)
> 	are kept for 60s, which can be changed with
> 	`udp_timeout` in the configuration.
> 
> 	Added probes for UDP protocols QUICK and Teamspeak.
> 
> 	Added probes for syslog protocol.
> 
> 	sslh-select refactored to change linear searches
> 	through connections to linear searches through
> 	fd_set.
> 
> 	Fixed a libconfig call to support libconfig 1.7.3.
> 
> 	Added symbol to support libconfig 1.4.9, still in
> 	use in CentOS7.
> 
> 	Warn about unknown settings in the configuration
> 	file.
> 
> 	Added per-protocol `transparent` option. sslh-fork
> 	drops the capability after creating the server-side
> 	transparent socket. Transparent now uses CAP_NET_RAW
> 	instead of CAP_NET_ADMIN.
> 
> 	Removed compile-time option to use POSIX regex. Now
> 	regex must be PCRE2 (Perl-Compatible). This was in
> 	fact the case since v1.21, as PCRE are used to parse
> 	the config file.
> 
> As usual, available on the Web site (https://www.rutschle.net/tech/sslh/download) and on Github (https://github.com/yrutschle/sslh/releases/tag/v1.22)
> 
> Enjoy!
> Cheers,
> Y.