This is the initial commit of the netconf server code. It consists
of the following:
1) The server is built using Twisted Conch
2) It adapted an existing opensource netconf server (https://github.com/choppsv1/netconf)
to handle some low-level protocols. The adaptation is mostly around
using Twisted Conch instead of Python Threads
3) A microservice to interface with Voltha on the SB and Netconf client on
the NB
4) A set of credentials for the server and clients. At this time these
credentials are local and in files. Additional work is required to
secure these files
5) A rough-in to handle the rpc requests from Netconf clients
6) Code for initial handshaking is in place (hello)
Change-Id: I1ca0505d0ac35ff06066b107019ae87ae30e38f8
diff --git a/netconf/grpc_client.py b/netconf/grpc_client.py
new file mode 100644
index 0000000..ca6fa42
--- /dev/null
+++ b/netconf/grpc_client.py
@@ -0,0 +1,40 @@
+#
+# Copyright 2016 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+The gRPC client layer for the Netconf agent
+"""
+from Queue import Queue, Empty
+from structlog import get_logger
+from twisted.internet.defer import inlineCallbacks, returnValue, DeferredQueue
+
+
+log = get_logger()
+
+
+class GrpcClient(object):
+
+ def __init__(self, connection_manager, channel):
+
+ self.connection_manager = connection_manager
+ self.channel = channel
+ self.logical_stub = None
+
+ self.stopped = False
+
+ self.packet_out_queue = Queue() # queue to send out PacketOut msgs
+ self.packet_in_queue = DeferredQueue() # queue to receive PacketIn
+