Generate verifier-safe eBPF packet parsing logic with bounds checking.
npx skills add https://github.com/cassamajor/xcnf --skill ebpf-packet-parser
Please help me install this Agent Skill. Skill: ebpf-packet-parser Source: https://github.com/cassamajor/xcnf/tree/main/.claude/skills/ebpf-packet-parser Command: npx skills add https://github.com/cassamajor/xcnf --skill ebpf-packet-parser
This Skill automates the generation of verifier-safe eBPF code for parsing network packets, simplifying the development of network functions in CNFs.
Use the ebpf-packet-parser skill to generate eBPF C code for parsing IPv4 and TCP headers from an XDP context.
High-intent search queries and answers about installing and using this skill.
To write verifier-safe eBPF code for parsing network packets, you must implement strict bounds checking and careful pointer arithmetic to ensure all memory accesses comply with eBPF verifier constraints.
Extracting IPv4 and TCP headers in an XDP program requires generating eBPF C logic that safely pulls protocol fields from the packet context through precise pointer manipulation to pass the verifier.
Yes, you can use eBPF packet parsing for Cloud Native Network Functions (CNFs) to inspect or classify network traffic at high speeds by generating header extraction logic for Ethernet, IPv4/IPv6, TCP, UDP, and ICMP.
Your eBPF program fails the verifier during packet data extraction due to missing or incorrect bounds checking on memory accesses. The verifier requires explicit safety proofs for all pointer arithmetic before allowing execution.
To generate bounds checking logic for multiple network protocols in eBPF, you need a structured approach that validates Ethernet, IPv4/IPv6, TCP/UDP, and ICMP headers sequentially to ensure every memory access is verifier-safe.
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