log+firewall: add firewall package

firewall/log.go

@@ -0,0 +1,25 @@
+package firewall
+
+import (
+	"github.com/btcsuite/btclog"
+	"github.com/lightningnetwork/lnd/build"
+)
+
+const Subsystem = "FIRE"
+
+// log is a logger that is initialized with no output filters.  This
+// means the package will not perform any logging by default until the caller
+// requests it.
+var log btclog.Logger
+
+// The default amount of logging is none.
+func init() {
+	UseLogger(build.NewSubLogger(Subsystem, nil))
+}
+
+// UseLogger uses a specified Logger to output package logging info.
+// This should be used in preference to SetLogWriter if the caller is also
+// using btclog.
+func UseLogger(logger btclog.Logger) {
+	log = logger
+}

log.go

@@ -5,6 +5,7 @@ import (
 	"github.com/lightninglabs/faraday"
 	"github.com/lightninglabs/lightning-node-connect/mailbox"
 	"github.com/lightninglabs/lightning-terminal/accounts"
+	"github.com/lightninglabs/lightning-terminal/firewall"
 	mid "github.com/lightninglabs/lightning-terminal/rpcmiddleware"
 	"github.com/lightninglabs/lightning-terminal/session"
 	"github.com/lightninglabs/loop/loopd"
@@ -65,6 +66,9 @@ func SetupLoggers(root *build.RotatingLogWriter, intercept signal.Interceptor) {
 	lnd.AddSubLogger(
 		root, accounts.Subsystem, intercept, accounts.UseLogger,
 	)
+	lnd.AddSubLogger(
+		root, firewall.Subsystem, intercept, firewall.UseLogger,
+	)
 
 	// Add daemon loggers to lnd's root logger.
 	faraday.SetupLoggers(root, intercept)