Include multiple physical devices and virtual interfaces, various network namespaces, firewall settings, routing tables, packet filtering, networking protocols, and so on. Software and hardware solutions are becoming increasingly complex, which leads to an increasingly complex network infrastructure that lies at the basis of such solutions. Tracing Network Packets in the Linux Kernel using eBPF.

Keywords: Linux kernel networking tracing eBPFįor citation: Kovalev M.G. In this paper, an approach to tracing the path of network packets in the Linux kernel using eBPF is described.

This situation could be changed with the appearance of a new type of tools powered by the Linux kernel's eBPF technology, which provides a flexible and powerful way to run a userspace code inside the kernel.

Usually, they are narrowly targeted on solving one problem and cannot show a system-wide network stack view, which could be helpful in finding the source of the malfunction. Although there exist plenty of tools and software that helps to troubleshoot such problems, their functionality is limited by the API that Linux kernel provides. During the development and maintenance of complex network infrastructure for a big project, developers face a lot of problems. Kovalev, ORCID: 0000-0003-1050-052X St Petersburg State University, 7-9, Universitetskaya nab., St. Tracing Network Packets in the Linux Kernel

Linux thread kernel stack size