From 8c8708e43aeae394787d0d1aa71ee22dca635bbe Mon Sep 17 00:00:00 2001
From: srdusr <99972264+srdusr@users.noreply.github.com>
Date: Sun, 31 May 2026 23:29:00 +0200
Subject: Add LLDP - dispatched by ethertype, no IP layer at all

Real switches broadcast this every ~30s, but this project had zero
treatment for it (0x88CC was previously the test suite's own example
of an "unhandled ethertype"). Dispatched by ethertype the same way
ARP is, since LLDP sits directly on Ethernet. TLV-encoded; only the
three mandatory TLVs (Chassis ID, Port ID, TTL) plus System Name are
rendered, while every other TLV is still walked over correctly so
nothing after it is lost.

Live-verified two ways, since this machine is on WiFi (LLDP isn't
relayed to wireless clients even when a real switch sends it) with no
LLDP daemon installed to generate traffic locally either: a 15-second
passive capture confirmed no organic LLDP traffic exists to
accidentally rely on, then a real 802.1AB frame was sent via a raw
AF_PACKET socket onto the actual NIC (not fed directly to parse_lldp()
in a unit test) and captured through the full pipeline, decoding
correctly.
---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 20fc70e..3588095 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -99,6 +99,7 @@ add_executable(packeteer_tests
   tests/test_net.cpp
   tests/test_arp.cpp
   tests/test_igmp.cpp
+  tests/test_lldp.cpp
   tests/test_rtcp.cpp
   tests/test_rtp.cpp
   tests/test_ipv6.cpp
-- 
cgit v1.2.3