stack: Fix close before start

nekohasekai · nekohasekai · commit d105263fed47 · 2024-11-12T10:30:18.000+08:00
diff --git a/stack_gvisor.go b/stack_gvisor.go
@@ -97,6 +97,9 @@ func (t *GVisor) Start() error {
 }
 
 func (t *GVisor) Close() error {
+	if t.stack == nil {
+		return nil
+	}
 	t.endpoint.Attach(nil)
 	t.stack.Close()
 	for _, endpoint := range t.stack.CleanupEndpoints() {
diff --git a/stack_mixed.go b/stack_mixed.go
@@ -224,6 +224,9 @@ func (m *Mixed) packetLoop() {
 }
 
 func (m *Mixed) Close() error {
+	if m.stack == nil {
+		return nil
+	}
 	m.endpoint.Attach(nil)
 	m.stack.Close()
 	for _, endpoint := range m.stack.CleanupEndpoints() {

Original file line number	Diff line number	Diff line change
`@@ -97,6 +97,9 @@ func (t *GVisor) Start() error {`
`97`	`97`	`}`
`98`	`98`
`99`	`99`	`func (t *GVisor) Close() error {`
	`100`	`+ if t.stack == nil {`
	`101`	`+ return nil`
	`102`	`+ }`
`100`	`103`	`t.endpoint.Attach(nil)`
`101`	`104`	`t.stack.Close()`
`102`	`105`	`for _, endpoint := range t.stack.CleanupEndpoints() {`
Original file line number	Diff line number	Diff line change
`@@ -224,6 +224,9 @@ func (m *Mixed) packetLoop() {`
`224`	`224`	`}`
`225`	`225`
`226`	`226`	`func (m *Mixed) Close() error {`
	`227`	`+ if m.stack == nil {`
	`228`	`+ return nil`
	`229`	`+ }`
`227`	`230`	`m.endpoint.Attach(nil)`
`228`	`231`	`m.stack.Close()`
`229`	`232`	`for _, endpoint := range m.stack.CleanupEndpoints() {`