From 84b5e77860e2705c257273395cf21ea4e3da5ccf Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Tue, 20 Sep 2022 09:17:57 +0200
Subject: global-functions: $GetMacVendor: detect locally administered
 addresses

https://en.wikipedia.org/wiki/MAC_address#Universal_vs._local_(U/L_bit)
---
 global-functions | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/global-functions b/global-functions
index 7c8bfdc..3f7a65e 100644
--- a/global-functions
+++ b/global-functions
@@ -388,6 +388,10 @@
   :global CertificateAvailable;
   :global LogPrintExit2;
 
+  :if ([ :tonum ("0x" . [ :pick $Mac 0 [ :find $Mac ":" ] ]) ] & 2 = 2) do={
+    :return "locally administered";
+  }
+
   :do {
     :if ([ $CertificateAvailable "R3" ] = false) do={
       $LogPrintExit2 warning $0 ("Downloading required certificate failed.") true;
-- 
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