From f83a16db92a0a138e6e5cc5b3aa7275e1c1548d1 Mon Sep 17 00:00:00 2001
From: Ravi Teja <raviteja28031990@gmail.com>
Date: Sun, 8 Dec 2024 22:48:21 -0600
Subject: [PATCH] Add LLDP configuration support

This commit implements EmitLLDP D-bus property to support configuration
of enable/disable LLDP of each ethernet interface.

Tested by:
Set EmitLLDP D-bus property on
xyz.openbmc_project.Network.EthernetInterface

Change-Id: I4ebedff9d3f914219f2f84c861fdee126584a94b
Signed-off-by: Ravi Teja <raviteja28031990@gmail.com>
---
 src/network_manager.cpp | 16 ++++++++++++++++
 src/network_manager.hpp |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/src/network_manager.cpp b/src/network_manager.cpp
index 860be069..f2af1c38 100644
--- a/src/network_manager.cpp
+++ b/src/network_manager.cpp
@@ -210,6 +210,7 @@ void Manager::createInterface(const AllIntfInfo& info, bool enabled)
     auto ptr = intf.get();
     interfaces.insert_or_assign(*info.intf.name, std::move(intf));
     interfacesByIdx.insert_or_assign(info.intf.idx, ptr);
+    loadDefaultLLDPConfig();
 }
 
 void Manager::addInterface(const InterfaceInfo& info)
@@ -529,6 +530,21 @@ void Manager::handleAdminState(std::string_view state, unsigned ifidx)
     }
 }
 
+void Manager::loadDefaultLLDPConfig()
+{
+    std::ofstream lldpdConfig(lldpFilePath);
+
+    lldpdConfig << "configure system description BMC" << std::endl;
+
+    for (const auto& intf : interfaces)
+    {
+        lldpdConfig << "configure ports " << intf.second->interfaceName()
+                    << " lldp status disabled" << std::endl;
+    }
+
+    lldpdConfig.close();
+}
+
 void Manager::writeLLDPDConfigurationFile()
 {
     std::ofstream lldpdConfig(lldpFilePath);
diff --git a/src/network_manager.hpp b/src/network_manager.hpp
index 3bc8ad25..a80b15be 100644
--- a/src/network_manager.hpp
+++ b/src/network_manager.hpp
@@ -110,6 +110,10 @@ class Manager : public ManagerIface
      */
     void reloadLLDPService();
 
+    /** Load default LLDP configuration
+     */
+    void loadDefaultLLDPConfig();
+
     /** @brief Persistent map of EthernetInterface dbus objects and their names
      */
     stdplus::string_umap<std::unique_ptr<EthernetInterface>> interfaces;