Added support for security1 in local control

1. Added config options to chose from protocom security.
    It can be chosen 0/1 or custom.
    Possible to set POP as well

2. Added support in `esp_local_ctrl.py` test script for sec_ver selection

Signed-off-by: Vikram Dattu <vikram.dattu@espressif.com>

examples/protocols/esp_local_ctrl/scripts/proto_lc.py

@@ -0,0 +1,101 @@
+# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+#
+# 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.
+#
+
+
+from __future__ import print_function
+
+import os
+
+from future.utils import tobytes
+
+
+def _load_source(name, path):
+    try:
+        from importlib.machinery import SourceFileLoader
+        return SourceFileLoader(name, path).load_module()
+    except ImportError:
+        # importlib.machinery doesn't exists in Python 2 so we will use imp (deprecated in Python 3)
+        import imp
+        return imp.load_source(name, path)
+
+
+idf_path = os.environ['IDF_PATH']
+constants_pb2 = _load_source('constants_pb2', idf_path + '/components/protocomm/python/constants_pb2.py')
+local_ctrl_pb2 = _load_source('esp_local_ctrl_pb2', idf_path + '/components/esp_local_ctrl/python/esp_local_ctrl_pb2.py')
+
+
+def get_prop_count_request(security_ctx):
+    req = local_ctrl_pb2.LocalCtrlMessage()
+    req.msg = local_ctrl_pb2.TypeCmdGetPropertyCount
+    payload = local_ctrl_pb2.CmdGetPropertyCount()
+    req.cmd_get_prop_count.MergeFrom(payload)
+    enc_cmd = security_ctx.encrypt_data(req.SerializeToString())
+    return enc_cmd
+
+
+def get_prop_count_response(security_ctx, response_data):
+    decrypt = security_ctx.decrypt_data(tobytes(response_data))
+    resp = local_ctrl_pb2.LocalCtrlMessage()
+    resp.ParseFromString(decrypt)
+    if (resp.resp_get_prop_count.status == 0):
+        return resp.resp_get_prop_count.count
+    else:
+        return 0
+
+
+def get_prop_vals_request(security_ctx, indices):
+    req = local_ctrl_pb2.LocalCtrlMessage()
+    req.msg = local_ctrl_pb2.TypeCmdGetPropertyValues
+    payload = local_ctrl_pb2.CmdGetPropertyValues()
+    payload.indices.extend(indices)
+    req.cmd_get_prop_vals.MergeFrom(payload)
+    enc_cmd = security_ctx.encrypt_data(req.SerializeToString())
+    return enc_cmd
+
+
+def get_prop_vals_response(security_ctx, response_data):
+    decrypt = security_ctx.decrypt_data(tobytes(response_data))
+    resp = local_ctrl_pb2.LocalCtrlMessage()
+    resp.ParseFromString(decrypt)
+    results = []
+    if (resp.resp_get_prop_vals.status == 0):
+        for prop in resp.resp_get_prop_vals.props:
+            results += [{
+                'name': prop.name,
+                'type': prop.type,
+                'flags': prop.flags,
+                'value': tobytes(prop.value)
+            }]
+    return results
+
+
+def set_prop_vals_request(security_ctx, indices, values):
+    req = local_ctrl_pb2.LocalCtrlMessage()
+    req.msg = local_ctrl_pb2.TypeCmdSetPropertyValues
+    payload = local_ctrl_pb2.CmdSetPropertyValues()
+    for i, v in zip(indices, values):
+        prop = payload.props.add()
+        prop.index = i
+        prop.value = v
+    req.cmd_set_prop_vals.MergeFrom(payload)
+    enc_cmd = security_ctx.encrypt_data(req.SerializeToString())
+    return enc_cmd
+
+
+def set_prop_vals_response(security_ctx, response_data):
+    decrypt = security_ctx.decrypt_data(tobytes(response_data))
+    resp = local_ctrl_pb2.LocalCtrlMessage()
+    resp.ParseFromString(decrypt)
+    return (resp.resp_set_prop_vals.status == 0)