From f8fbe2dee12735b541a13619d08dc7cbd32e91eb Mon Sep 17 00:00:00 2001
From: Graham Christensen <graham@grahamc.com>
Date: Tue, 26 Apr 2022 15:49:52 -0400
Subject: networkd: support specifying the ClientIdentifier for DHCPv4 options

---
 nixos/modules/system/boot/networkd.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/system/boot/networkd.nix b/nixos/modules/system/boot/networkd.nix
index d1a6f46bfc40..b154375e9b10 100644
--- a/nixos/modules/system/boot/networkd.nix
+++ b/nixos/modules/system/boot/networkd.nix
@@ -27,9 +27,11 @@ let
 
       sectionDHCPv4 = checkUnitConfig "DHCPv4" [
         (assertOnlyFields [
+          "ClientIdentifier"
           "DUIDType"
           "DUIDRawData"
         ])
+        (assertValueOneOf "ClientIdentifier" ["mac" "duid" "duid-only"])
       ];
 
       sectionDHCPv6 = checkUnitConfig "DHCPv6" [
-- 
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