Add negotiation process for driver scope

Add one capability negotiation interaction after plugin handshake, use
this to determine plugin's capability instead of default "global" scope.

Signed-off-by: Zhang Wei <zhangwei555@huawei.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/libnetwork/drivers/remote/api/api.go b/libnetwork/drivers/remote/api/api.go
index 2a0d297ce5..2d441ab7d2 100644
--- a/libnetwork/drivers/remote/api/api.go
+++ b/libnetwork/drivers/remote/api/api.go
@@ -16,6 +16,12 @@ func (r *Response) GetError() string {
 	return r.Err
 }
 
+// GetCapabilityResponse is the response of GetCapability request
+type GetCapabilityResponse struct {
+	Response
+	Scope string
+}
+
 // CreateNetworkRequest requests a new network.
 type CreateNetworkRequest struct {
 	// A network ID that remote plugins are expected to store for future