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104 lines
4.4 KiB
Python
104 lines
4.4 KiB
Python
# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# APIs for interpreting and creating protobuf packets for Wi-Fi provisioning
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from __future__ import print_function
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import proto
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import utils
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from future.utils import tobytes
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def print_verbose(security_ctx, data):
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if (security_ctx.verbose):
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print('++++ ' + data + ' ++++')
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def config_get_status_request(security_ctx):
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# Form protobuf request packet for GetStatus command
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cfg1 = proto.wifi_config_pb2.WiFiConfigPayload()
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cfg1.msg = proto.wifi_config_pb2.TypeCmdGetStatus
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cmd_get_status = proto.wifi_config_pb2.CmdGetStatus()
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cfg1.cmd_get_status.MergeFrom(cmd_get_status)
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encrypted_cfg = security_ctx.encrypt_data(cfg1.SerializeToString()).decode('latin-1')
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print_verbose(security_ctx, 'Client -> Device (Encrypted CmdGetStatus) ' + utils.str_to_hexstr(encrypted_cfg))
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return encrypted_cfg
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def config_get_status_response(security_ctx, response_data):
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# Interpret protobuf response packet from GetStatus command
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decrypted_message = security_ctx.decrypt_data(tobytes(response_data))
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cmd_resp1 = proto.wifi_config_pb2.WiFiConfigPayload()
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cmd_resp1.ParseFromString(decrypted_message)
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print_verbose(security_ctx, 'Response type ' + str(cmd_resp1.msg))
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print_verbose(security_ctx, 'Response status ' + str(cmd_resp1.resp_get_status.status))
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if cmd_resp1.resp_get_status.sta_state == 0:
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print('++++ WiFi state: ' + 'connected ++++')
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return 'connected'
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elif cmd_resp1.resp_get_status.sta_state == 1:
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print('++++ WiFi state: ' + 'connecting... ++++')
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return 'connecting'
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elif cmd_resp1.resp_get_status.sta_state == 2:
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print('++++ WiFi state: ' + 'disconnected ++++')
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return 'disconnected'
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elif cmd_resp1.resp_get_status.sta_state == 3:
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print('++++ WiFi state: ' + 'connection failed ++++')
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if cmd_resp1.resp_get_status.fail_reason == 0:
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print('++++ Failure reason: ' + 'Incorrect Password ++++')
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elif cmd_resp1.resp_get_status.fail_reason == 1:
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print('++++ Failure reason: ' + 'Incorrect SSID ++++')
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return 'failed'
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return 'unknown'
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def config_set_config_request(security_ctx, ssid, passphrase):
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# Form protobuf request packet for SetConfig command
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cmd = proto.wifi_config_pb2.WiFiConfigPayload()
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cmd.msg = proto.wifi_config_pb2.TypeCmdSetConfig
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cmd.cmd_set_config.ssid = tobytes(ssid)
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cmd.cmd_set_config.passphrase = tobytes(passphrase)
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enc_cmd = security_ctx.encrypt_data(cmd.SerializeToString()).decode('latin-1')
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print_verbose(security_ctx, 'Client -> Device (SetConfig cmd) ' + utils.str_to_hexstr(enc_cmd))
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return enc_cmd
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def config_set_config_response(security_ctx, response_data):
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# Interpret protobuf response packet from SetConfig command
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decrypt = security_ctx.decrypt_data(tobytes(response_data))
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cmd_resp4 = proto.wifi_config_pb2.WiFiConfigPayload()
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cmd_resp4.ParseFromString(decrypt)
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print_verbose(security_ctx, 'SetConfig status ' + str(cmd_resp4.resp_set_config.status))
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return cmd_resp4.resp_set_config.status
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def config_apply_config_request(security_ctx):
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# Form protobuf request packet for ApplyConfig command
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cmd = proto.wifi_config_pb2.WiFiConfigPayload()
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cmd.msg = proto.wifi_config_pb2.TypeCmdApplyConfig
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enc_cmd = security_ctx.encrypt_data(cmd.SerializeToString()).decode('latin-1')
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print_verbose(security_ctx, 'Client -> Device (ApplyConfig cmd) ' + utils.str_to_hexstr(enc_cmd))
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return enc_cmd
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def config_apply_config_response(security_ctx, response_data):
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# Interpret protobuf response packet from ApplyConfig command
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decrypt = security_ctx.decrypt_data(tobytes(response_data))
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cmd_resp5 = proto.wifi_config_pb2.WiFiConfigPayload()
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cmd_resp5.ParseFromString(decrypt)
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print_verbose(security_ctx, 'ApplyConfig status ' + str(cmd_resp5.resp_apply_config.status))
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return cmd_resp5.resp_apply_config.status
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