From 4a0fc3e980bd40fe8c0296f5d8599ff3580549f0 Mon Sep 17 00:00:00 2001
From: Conner Fromknecht <conner@lightning.engineering>
Date: Fri, 8 Feb 2019 20:02:17 -0800
Subject: [PATCH] watchtower/multi: thread ChainHash to server

---
 watchtower/config.go     | 6 ++++++
 watchtower/standalone.go | 1 +
 2 files changed, 7 insertions(+)

diff --git a/watchtower/config.go b/watchtower/config.go
index 733ebb0b..b8136682 100644
--- a/watchtower/config.go
+++ b/watchtower/config.go
@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
 	"github.com/btcsuite/btcd/wire"
 	"github.com/btcsuite/btcutil"
 	"github.com/lightningnetwork/lnd/tor"
@@ -35,6 +36,11 @@ var (
 // All nil-able elements with the Config must be set in order for the Watchtower
 // to function properly.
 type Config struct {
+	// ChainHash identifies the chain that the watchtower will be monitoring
+	// for breaches and that will be advertised in the server's Init message
+	// to inbound clients.
+	ChainHash chainhash.Hash
+
 	// BlockFetcher supports the ability to fetch blocks from the network by
 	// hash.
 	BlockFetcher lookout.BlockFetcher
diff --git a/watchtower/standalone.go b/watchtower/standalone.go
index ebb3646d..f55f44cb 100644
--- a/watchtower/standalone.go
+++ b/watchtower/standalone.go
@@ -78,6 +78,7 @@ func New(cfg *Config) (*Standalone, error) {
 
 	// Initialize the server with its required resources.
 	server, err := wtserver.New(&wtserver.Config{
+		ChainHash:    cfg.ChainHash,
 		DB:           cfg.DB,
 		NodePrivKey:  cfg.NodePrivKey,
 		Listeners:    listeners,