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OpenVPN
5a3b755f23
Currently whenever we send a PEER_GET request to ovpn, we also set the CB that is supposed to parse the reply. However, due to the async nature of netlink messages, we could get an unrelated notification, sent by ovpn upon some event, after having set the CB, but before parsing the awaited reply. When this happens, the notification is then parsed with the configured CB instead of the notification parser, thus effectively rejecting the notification and losing the event. To fix this inconsistency, make ovpn_handle_msg() the default and only netlink parser CB. It is configured upon DCO initialization and is never removed. ovpn_handle_msg() will check the message type and will call the according parser. This way, no matter what message we get at what time, but we'll always parse it correctly. As a bonus we can also simplify the nl_sendmsg() API as we don't need to pass the cb and its argument anymore. The ID of the NLCTRL family is now also stored in the DCO context as we need it to check when we receive a mcast ID lookup message. Change-Id: I23ad79e14844aefde9ece34dadef0b75ff267201 Github: OpenVPN/openvpn#793 Signed-off-by: Antonio Quartulli <antonio@mandelbit.com> |
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| debug | ||
| dev-tools | ||
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| include | ||
| m4 | ||
| sample | ||
| src | ||
| tests | ||
| .git-blame-ignore-revs | ||
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| AUTHORS | ||
| ChangeLog | ||
| Changes.rst | ||
| CMakeLists.txt | ||
| CMakePresets.json | ||
| compat.m4 | ||
| config.h.cmake.in | ||
| configure.ac | ||
| CONTRIBUTING.rst | ||
| COPYING | ||
| COPYRIGHT.GPL | ||
| forked-test-driver | ||
| INSTALL | ||
| ltrc.inc | ||
| Makefile.am | ||
| NEWS | ||
| PORTS | ||
| README | ||
| README.awslc | ||
| README.cmake.md | ||
| README.dco.md | ||
| README.ec | ||
| README.mbedtls | ||
| README.wolfssl | ||
| renovate.json | ||
| version.m4 | ||
OpenVPN -- A Secure tunneling daemon Copyright (C) 2002-2022 OpenVPN Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. ************************************************************************* To get the latest release of OpenVPN, go to: https://openvpn.net/community-downloads/ To Build and Install, tar -zxf openvpn-<version>.tar.gz cd openvpn-<version> ./configure make make install or see the file INSTALL for more info. For information on how to build OpenVPN on/for Windows with MinGW or MSVC see README.cmake.md. ************************************************************************* For detailed information on OpenVPN, including examples, see the man page http://openvpn.net/man.html For a sample VPN configuration, see http://openvpn.net/howto.html To report an issue, see https://github.com/OpenVPN/openvpn/issues/new (Note: We recently switched to GitHub for reporting new issues, old issues can be found at: https://community.openvpn.net/openvpn/report) For a description of OpenVPN's underlying protocol, see the file ssl.h included in the source distribution. ************************************************************************* Other Files & Directories: * configure.ac -- script to rebuild our configure script and makefile. * sample/sample-scripts/verify-cn A sample perl script which can be used with OpenVPN's --tls-verify option to provide a customized authentication test on embedded X509 certificate fields. * sample/sample-keys/ Sample RSA keys and certificates. DON'T USE THESE FILES FOR ANYTHING OTHER THAN TESTING BECAUSE THEY ARE TOTALLY INSECURE. * sample/sample-config-files/ A collection of OpenVPN config files and scripts from the HOWTO at http://openvpn.net/howto.html ************************************************************************* Note that easy-rsa and tap-windows are now maintained in their own subprojects. Their source code is available here: https://github.com/OpenVPN/easy-rsa https://github.com/OpenVPN/tap-windows6 Community-provided Windows installers (MSI) and Debian packages are built from https://github.com/OpenVPN/openvpn-build See the INSTALL file for usage information.