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The code never supported all extension types. Make this explicit by only allowing subjectAltName and issuerAltName (for which the current code does work). Using unsupported extension fields would most likely cause OpenVPN to crash as soon as a client connects. This does not have a real-world security impact, as such a configuration would not be possible to use in practice. This bug was discovered, analysed and reported to the OpenVPN team by Guido Vranken. Signed-off-by: Steffan Karger <steffan.karger@fox-it.com> Acked-by: Gert Doering <gert@greenie.muc.de> Acked-by: David Sommerseth <davids@openvpn.net> Acked-by: Guido Vranken <guidovranken@gmail.com> Message-Id: <1497864520-12219-5-git-send-email-steffan.karger@fox-it.com> URL: https://www.mail-archive.com/search?l=mid&q=1497864520-12219-5-git-send-email-steffan.karger@fox-it.com Signed-off-by: Gert Doering <gert@greenie.muc.de> |
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| doxygen | ||
| android.txt | ||
| keying-material-exporter.txt | ||
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| 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.