* All external programs and scripts are now called by execve() on unix and
CreateProcess on Windows.
* The system() function is no longer used.
* Argument lists for external programs and scripts are now built by the new
argv_printf function which natively outputs to string arrays (i.e.
char *argv[] lists), never truncates its output, and eliminates the security
issues inherent in formatting and parsing command lines, and dealing with
argument quoting.
* The --script-security directive has been added to offer policy controls on
OpenVPN's execution of external programs and scripts.
Also added a new plugin example (openvpn/plugin/examples/log.c) that logs
information to stdout for every plugin method called by OpenVPN.
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3122 e7ae566f-a301-0410-adde-c780ea21d3b5
password if the verbosity was set to a high debug level
such as 7 or higher. Normally this would only be used by
developers. Now, even at high debug levels, the password
will not be output.
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3073 e7ae566f-a301-0410-adde-c780ea21d3b5
Support asynchronous authentication by plugins by allowing
OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY to return
OPENVPN_PLUGIN_FUNC_DEFERRED. See comments in
openvpn-plugin.h for documentation. Enabled by ENABLE_DEF_AUTH.
Added a simple packet filter functionality that can be driven by
a plugin. See comments in openvpn-plugin.h for documentation.
Enabled by ENABLE_PF.
See openvpn/plugin/defer/simple.c for examples of ENABLE_DEF_AUTH
and ENABLE_PF.
"TLS Error: local/remote TLS keys are out of sync" is no longer a
fatal error for TCP-based sessions, since the error can arise
normally in the course of deferred authentication. In a related
change, allow packet-id sequence to begin at some number n > 0 for
TCP sessions, rather than strictly requiring sequence to begin
at 1.
Added a test to configure.ac for LoadLibrary function on Windows.
Modified "make dist" function to include all files from
install-win32 so that ./domake-win can be run from a
tarball-expanded directory.
setenv and setenv-safe directives may now omit a value argument
which defaults to "".
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2978 e7ae566f-a301-0410-adde-c780ea21d3b5
to not be called for the top-level "generic" client template.
Added additional documentation to openvpn-plugin.h that more clearly
illustrates the full sequence and ordering of plugin callbacks
(plugin/defer/simple.c was extended to provide the raw data for this
documentation).
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2973 e7ae566f-a301-0410-adde-c780ea21d3b5
Allow plugin and push directives to have multiple
parameters specified instead of only 1 quoted
parameter.
Allow plugin and push directives to have multi-line
parameter lists, such as:
<plugin>
my-plugin.so
parm1
parm2
</plugin>
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@785 e7ae566f-a301-0410-adde-c780ea21d3b5
