From ca59c5f316b9c8861fb6a2110be39621d2a28d50 Mon Sep 17 00:00:00 2001
From: kevin <kevin@lmve.net>
Date: Mon, 29 Jun 2026 10:43:18 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E6=9C=BA=E5=99=A8=E4=BA=BAho?=
 =?UTF-8?q?ps=E4=B8=BA7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 internal/mqtpp/builder.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/internal/mqtpp/builder.go b/internal/mqtpp/builder.go
index a41345e..fe3393e 100644
--- a/internal/mqtpp/builder.go
+++ b/internal/mqtpp/builder.go
@@ -20,6 +20,7 @@ type PacketBuildOptions struct {
 	PSK         []byte
 	Encrypt     bool
 	ViaMQTT     bool
+	HopLimit    uint32
 }
 
 type TextMessageBuildOptions struct {
@@ -252,6 +253,14 @@ func buildMeshPacket(opts PacketBuildOptions, data []byte) ([]byte, error) {
 		out = protowire.AppendTag(out, 14, protowire.VarintType)
 		out = protowire.AppendVarint(out, 1)
 	}
+	hop := opts.HopLimit
+	if hop == 0 {
+		hop = 7
+	}
+	out = protowire.AppendTag(out, 9, protowire.VarintType)
+	out = protowire.AppendVarint(out, uint64(hop))
+	out = protowire.AppendTag(out, 15, protowire.VarintType)
+	out = protowire.AppendVarint(out, uint64(hop))
 	return out, nil
 }