VLLMX/vbvxGitHub →
v0.1 — header-only

Zero-copy packet header views
for C++23.

VBVX (VPP Buffer View eXtensions) is a small header-only C++23 library that exposes safe, bounds-checked views over Ethernet, IPv4/v6, TCP/UDP, ICMP and SRv6 — without ever copying the bytes.

Get startedView features
example.cxx
#include "vbvx/buffer_view.hxx"

vbvx::BufferView buf(data, len);
if (auto ip = buf.ipv4_header()) {
  if (buf.ip_protocol() == vbvx::IpProtocol::TCP) {
    if (auto tcp = buf.tcp_header()) {
      auto src = tcp->src_port();
      auto dst = tcp->dst_port();
    }
  }
}
Language
C++ 23
Layout
Header-only
Targets
L2 · L3 · L4 · SRv6
Tests
GoogleTest
Core features

Designed for the parse path.

Every abstraction is built around the constraints of high-rate packet parsing — predictable, bounds-checked, and free of allocation.

01

Zero-copy views

BufferView/HeaderView wrap raw buffers — no allocation, no indirection.

02

L2/L3/L4 coverage

Ethernet, VLAN, ARP, IPv4/IPv6, TCP, UDP and ICMP, all bounds-checked.

03

SRv6 ready

Segment Routing over IPv6: SRH segment list and TLV iteration.

04

Header-only

Drop in via add_subdirectory or FetchContent — no build artifacts.

05

Endian-aware

Network-order accessors with autoswap helpers for host conversions.

06

Tested

GoogleTest suites cover parsing branches and SRv6 edge cases.