From 6da44eba4b6d5f27452d0da0aaf83fcb8a159364 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Samy=20Djema=C3=AF?=
 <53857555+SamyDjemai@users.noreply.github.com>
Date: Thu, 4 Dec 2025 11:54:35 +0100
Subject: [PATCH] feat: add DERPHomeParams settings

---
 hscontrol/derp/derp.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hscontrol/derp/derp.go b/hscontrol/derp/derp.go
index 42d74abe..3240def7 100644
--- a/hscontrol/derp/derp.go
+++ b/hscontrol/derp/derp.go
@@ -76,11 +76,13 @@ func loadDERPMapFromURL(addr url.URL) (*tailcfg.DERPMap, error) {
 func mergeDERPMaps(derpMaps []*tailcfg.DERPMap) *tailcfg.DERPMap {
 	result := tailcfg.DERPMap{
 		OmitDefaultRegions: false,
+		HomeParams:         &tailcfg.DERPHomeParams{},
 		Regions:            map[int]*tailcfg.DERPRegion{},
 	}
 
 	for _, derpMap := range derpMaps {
 		maps.Copy(result.Regions, derpMap.Regions)
+		maps.Copy(result.HomeParams.RegionScore, derpMap.HomeParams.RegionScore)
 	}
 
 	for id, region := range result.Regions {
@@ -89,6 +91,12 @@ func mergeDERPMaps(derpMaps []*tailcfg.DERPMap) *tailcfg.DERPMap {
 		}
 	}
 
+	for id, regionScore := range result.HomeParams.RegionScore {
+		if regionScore <= 0 {
+			delete(result.HomeParams.RegionScore, id)
+		}
+	}
+
 	return &result
 }