From d1cd203f85b236fe0020e752537877d887d35a82 Mon Sep 17 00:00:00 2001
From: Hui Kang <hkang.sunysb@gmail.com>
Date: Fri, 11 Sep 2015 05:06:52 +0000
Subject: [PATCH] Add a method to retrieve the interfaces in a sandbox

Signed-off-by: Hui Kang hkang.sunysb@gmail.com
---
 libnetwork_test.go |  4 ++++
 sandbox.go         | 10 ++++++++++
 2 files changed, 14 insertions(+)

diff --git a/libnetwork_test.go b/libnetwork_test.go
index 8366761cca..17e55c6fb5 100644
--- a/libnetwork_test.go
+++ b/libnetwork_test.go
@@ -1188,6 +1188,10 @@ func (f *fakeSandbox) Delete() error {
 	return nil
 }
 
+func (f *fakeSandbox) Interfaces() []osl.Interface {
+	return nil
+}
+
 func (f *fakeSandbox) SetKey(key string) error {
 	return nil
 }
diff --git a/sandbox.go b/sandbox.go
index 93d4a2f478..8d4e0a1fa8 100644
--- a/sandbox.go
+++ b/sandbox.go
@@ -36,6 +36,8 @@ type Sandbox interface {
 	SetKey(key string) error
 	// Delete destroys this container after detaching it from all connected endpoints.
 	Delete() error
+	// Retrieve the interfaces in the sandbox, for restoring checkpointed container
+	Interfaces() []osl.Interface
 }
 
 // SandboxOption is a option setter function type used to pass varios options to
@@ -165,6 +167,14 @@ func (sb *sandbox) Delete() error {
 	return nil
 }
 
+func (sb *sandbox) Interfaces() []osl.Interface {
+	if sb.osSbox == nil {
+		return nil
+	}
+
+	return sb.osSbox.Info().Interfaces()
+}
+
 func (sb *sandbox) Refresh(options ...SandboxOption) error {
 	// Store connected endpoints
 	epList := sb.getConnectedEndpoints()