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Descibe benefits of kernel module

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As asked in #128
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Vadim Vetrov 2024-09-29 13:23:16 +03:00 committed by GitHub
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@ -42,7 +42,7 @@ GNU General Public License for more details.
The program is distributed in two version:
- A userspace application works on top of nfnetlink queue which requires nfnetlink modules in the kernel and firewall rules. This approach is default and normally should be used but it has some limitations on embedded devices which may have no nfnetlink support. Also this solution may break down the internet speed and CPU load on your device because of jumps between userspace and kernelspace for each packet (this behavior may be fixed with connbytes but it also requires conntrack kernel module).
- A kernel module which integrates deeply within the netfilter stack and does not interact with the userspace firewall. The module requires only netfilter kernel support but it definetly present on every device connected to the Internet. The only difficulity is how to build it. I cannot provide modules within Github Actions for each single one kernel, even if we talk only about OpenWRT versions. If you want to learn more about the module, jump on [its section in the README](#kernel-module)
- A kernel module which integrates deeply within the netfilter stack and does not interact with the userspace firewall. The module requires only netfilter kernel support but it definetly present on every device connected to the Internet. The only difficulity is how to build it. I cannot provide modules within Github Actions for each single one kernel, even if we talk only about OpenWRT versions. If you want to learn more about the module, jump on [its section in the README](#kernel-module). Whats the benefits of the kernel module? The benefits come for some specific cases: the kernel module is the fastest thing that allows us to process every single packet sent to the linux network stack, while the normal youtubeUnblock requires connbytes to keep the internet speed. Speaking about connbytes, it also requires conntrack to operate, which may be a limitation on some transit-traffic machines. Also userspace youtubeUnblock requires modules for netlink queue, userspace firewall application and modules for it. The kernel module is much simpler and requires only the linux kernel with netfilter built in.
The program is compatible with routers based on OpenWRT, Entware(Keenetic/ASUS) and host machines. The program offers binaries via Github Actions. The binaries are also available via [github releases](https://github.com/Waujito/youtubeUnblock/releases). Use the latest pre-release for the most up to date build. Check out [Github Actions](https://github.com/Waujito/youtubeUnblock/actions/workflows/build-ci.yml) if you want to see all the binaries compiled ever. You should know the arcitecture of your hardware to use binaries. On OpenWRT you can check it with command `grep ARCH /etc/openwrt_release`.