Use libcap for saving CAP_NET_ADMIN (if --transparent is given) over a
setuid(). We don’t need CAP_NET_BIND_SERVICE as the listening sockets
are established before dropping root.
The current asprintf usage triggers many warnings like:
sslh-main.c: In function 'print_usage':
sslh-main.c:86:17: warning: ignoring return value of 'asprintf',
declared with attribute warn_unused_result [-Wunused-result]
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This func takes an int, not a long. The current code triggers a warning:
sslh-main.c: In function 'config_parse':
sslh-main.c:275:5: warning: passing argument 3 of 'config_lookup_int' from incompatible pointer type [enabled by default]
if (config_lookup_int(&config, "timeout", &timeout) == CONFIG_TRUE) {
^
In file included from sslh-main.c:26:0:
/usr/include/libconfig.h:266:12: note: expected 'int *' but argument is of type 'long int *'
extern LIBCONFIG_API int config_lookup_int(const config_t *config,
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This code doesn't respect CPPFLAGS at all. Fix that and move the
existing -D flags to the right variable.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
We need these flags to come before all the objects, not after.
Otherwise, flags that impact handling of input objects do not
show up in time.
This also matches standard build system behavior (e.g. autotools).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When building the source from a checked out tag, eg v1.15, VERSION will
equal v1.15. However, when building from anything other than a tagged
version, you get 'v1.15-4-g50432d5-dirty' meaning I was 4 patches in
front of v1.15, particularly '50432d5' was my current HEAD, and I had
uncommited changes, '-dirty'.
Very useful for folks submitting bug reports on versions they compiled
themselves.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This is an update of the init scripts originally written by Andre
Krajnik. It is quite similar to other init scripts brought by common
packages in RH/CentOS. This commit also introduces a pretty straight
forward sysconfig file.
This patch allows to set option --transparent in an SSLH configuration
file. Without it, transparent mode is only possible by passing the
option on the command line.
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 Weischuh).
Added LSB tags to etc.init.d.sslh
(Thomas Varis).
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).
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.
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).
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.
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.) (Franois 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.
