Dear all, OpenVPN Inc. and me are happy to announce that today we have released to the public our work-in-progress project called "ovpn-dco".
ovpn-dco stands for "OpenVPN Data Channel Offload". It is a Linux kernel module and it implements all required functionalities to handle the OpenVPN data channel. In other words, when using ovpn-dco, the OpenVPN software will not send data traffic back and forth between user and kernel space (for encryption/decryption and routing), but operations on payloads will take place in the Linux kernel. Moving the data channel to kernel space is expected to finally remove that bottleneck that has long prevented OpenVPN to scale better. This is just the first step towards a feature-complete kernel based OpenVPN driver and we will continue to work on improving performance and implementing more features. The project is under heavy development, therefore APIs, data structures and anything else may drastically change in the following months. Our goal is to bring ovpn-dco up-to-the-standard with the rest of the Linux kernel and then submit it for review and inclusion to the netdev community. Clients currently able to leverage on the ovpn-dco kernel module are the OpenVPN3 reference client and the OpenVPN3 Linux client will include ovpn-dco support in the next release. Support for OpenVPN2 is planned. ovpn-dco is released under GPLv2 and everybody is welcome to run, crash and patch this kernel module. Code is hosted on both GitHub and GitLab: * https://gitlab.com/openvpn/ovpn-dco * https://github.com/OpenVPN/ovpn-dco Please refer to the README file for more details about how to build and test ovpn-dco. Patch submission can be done through this mailing list, as explained in the README as well. https://gitlab.com/openvpn/ovpn-dco/-/blob/master/README The idea of implementing an OpenVPN kernel module has been around for years; finally what were once words have become lines of code. I hope more enthusiasts will join the project and help pushing the development forward. A big thanks goes to OpenVPN Inc. for having provided all required resources to make this happen. Looking forward to see patches coming through! Happy hacking!  https://www.openvpn.net  https://github.com/openvpn/openvpn3#building-the-openvpn-3-client-on-linux  https://community.openvpn.net/openvpn/wiki/OpenVPN3Linux -- Antonio Quartulli OpenVPN Inc. _______________________________________________ Openvpn-devel mailing list Openvpnfirstname.lastname@example.org https://lists.sourceforge.net/lists/listinfo/openvpn-devel