From 7c341afa76951d8d4a60ce1193ed11fdba923cdb Mon Sep 17 00:00:00 2001
From: Stefan Lankes <slankes@eonerc.rwth-aachen.de>
Date: Wed, 5 Jun 2024 19:40:11 +0200
Subject: [PATCH] add warning if HERMIT_IP is set and dhcpv4 feature is enabled

---
 src/executor/device.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/executor/device.rs b/src/executor/device.rs
index 83dfae38c8..2c80dd8cfc 100644
--- a/src/executor/device.rs
+++ b/src/executor/device.rs
@@ -54,6 +54,10 @@ impl<'a> NetworkInterface<'a> {
 
 		let mut device = HermitNet::new(mtu, checksums);
 
+		if hermit_var!("HERMIT_IP").is_some() {
+			warn!("A static IP address is specified with the environment variable HERMIT_IP, but the device is configured to use DHCPv4!");
+		}
+
 		let ethernet_addr = EthernetAddress([mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]]);
 		let hardware_addr = HardwareAddress::Ethernet(ethernet_addr);