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Sending packets directly from BPF

Developers are working on enabling BPF programs to send network packets directly, eliminating the dependency on user-space agents for data forwarding. This improvement aims to enhance the resilience of security monitoring tools like Tetragon by preventing single points of failure where killing the user-space process disables reporting.

Background

BPF (Berkeley Packet Filter) is a powerful Linux kernel technology used for tracing and networking, but currently often requires user-space assistance for complex tasks like remote logging. This development seeks to extend BPF capabilities to handle packet transmission natively within the kernel context.

Source
Lobsters
Published
Jul 25, 2026 at 05:59 PM
Score
7.0 / 10