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v4: - Account for IP header offset in TAP mode - Correct handle of non-IP protocols in TAP mode v3: Use better way of figuring out IP proto version which does not break TAP mode. Add an option to allow recursive routing, could be useful when packets sent by openvpn itself are not subject to the routing tables that would move packets into the tunnel. v2: better method naming On certain OSes (Windows, OS X) when network adapter is disabled (ethernet cable pulled off, Wi-Fi hardware switch disabled), operating system starts to use tun as an external interface. Outgoing packets are routed to tun, UDP encapsulated, given to routing table and sent to.. tun. As a consequence, system starts talking to itself on full power, traffic counters skyrocket and user is not happy. To prevent that, drop packets which have gateway IP as destination address. Tested on Win7/10, OS X, Linux. Trac #642 Acked-by: Gert Doering <gert@greenie.muc.de> Message-Id: <1478208503-25929-1-git-send-email-lstipakov@gmail.com> URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg12894.html Signed-off-by: Gert Doering <gert@greenie.muc.de> |
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| doxygen | ||
| android.txt | ||
| keying-material-exporter.txt | ||
| Makefile.am | ||
| management-notes.txt | ||
| openvpn.8 | ||
| README.plugins | ||
OpenVPN Plugins
---------------
Starting with OpenVPN 2.0-beta17, compiled plugin modules are
supported on any *nix OS which includes libdl or on Windows.
One or more modules may be loaded into OpenVPN using
the --plugin directive, and each plugin module is capable of
intercepting any of the script callbacks which OpenVPN supports:
(1) up
(2) down
(3) route-up
(4) ipchange
(5) tls-verify
(6) auth-user-pass-verify
(7) client-connect
(8) client-disconnect
(9) learn-address
See the openvpn-plugin.h file in the top-level directory of the
OpenVPN source distribution for more detailed information
on the plugin interface.
Included Plugins
----------------
auth-pam -- Authenticate using PAM and a split privilege
execution model which functions even if
root privileges or the execution environment
have been altered with --user/--group/--chroot.
Tested on Linux only.
down-root -- Enable the running of down scripts with root privileges
even if --user/--group/--chroot have been used
to drop root privileges or change the execution
environment. Not applicable on Windows.
examples -- A simple example that demonstrates a portable
plugin, i.e. one which can be built for *nix
or Windows from the same source.
Building Plugins
----------------
cd to the top-level directory of a plugin, and use the
"make" command to build it. The examples plugin is
built using a build script, not a makefile.