106 lines
4.6 KiB
Python
106 lines
4.6 KiB
Python
# 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.
|
|
#
|
|
|
|
# APIs for interpreting and creating protobuf packets for Wi-Fi Scanning
|
|
|
|
from __future__ import print_function
|
|
from future.utils import tobytes
|
|
|
|
import utils
|
|
import proto
|
|
|
|
|
|
def print_verbose(security_ctx, data):
|
|
if (security_ctx.verbose):
|
|
print("++++ " + data + " ++++")
|
|
|
|
|
|
def scan_start_request(security_ctx, blocking=True, passive=False, group_channels=5, period_ms=120):
|
|
# Form protobuf request packet for ScanStart command
|
|
cmd = proto.wifi_scan_pb2.WiFiScanPayload()
|
|
cmd.msg = proto.wifi_scan_pb2.TypeCmdScanStart
|
|
cmd.cmd_scan_start.blocking = blocking
|
|
cmd.cmd_scan_start.passive = passive
|
|
cmd.cmd_scan_start.group_channels = group_channels
|
|
cmd.cmd_scan_start.period_ms = period_ms
|
|
enc_cmd = security_ctx.encrypt_data(cmd.SerializeToString()).decode('latin-1')
|
|
print_verbose(security_ctx, "Client -> Device (Encrypted CmdScanStart) " + utils.str_to_hexstr(enc_cmd))
|
|
return enc_cmd
|
|
|
|
|
|
def scan_start_response(security_ctx, response_data):
|
|
# Interpret protobuf response packet from ScanStart command
|
|
dec_resp = security_ctx.decrypt_data(tobytes(response_data))
|
|
resp = proto.wifi_scan_pb2.WiFiScanPayload()
|
|
resp.ParseFromString(dec_resp)
|
|
print_verbose(security_ctx, "ScanStart status " + str(resp.status))
|
|
if resp.status != 0:
|
|
raise RuntimeError
|
|
|
|
|
|
def scan_status_request(security_ctx):
|
|
# Form protobuf request packet for ScanStatus command
|
|
cmd = proto.wifi_scan_pb2.WiFiScanPayload()
|
|
cmd.msg = proto.wifi_scan_pb2.TypeCmdScanStatus
|
|
enc_cmd = security_ctx.encrypt_data(cmd.SerializeToString()).decode('latin-1')
|
|
print_verbose(security_ctx, "Client -> Device (Encrypted CmdScanStatus) " + utils.str_to_hexstr(enc_cmd))
|
|
return enc_cmd
|
|
|
|
|
|
def scan_status_response(security_ctx, response_data):
|
|
# Interpret protobuf response packet from ScanStatus command
|
|
dec_resp = security_ctx.decrypt_data(tobytes(response_data))
|
|
resp = proto.wifi_scan_pb2.WiFiScanPayload()
|
|
resp.ParseFromString(dec_resp)
|
|
print_verbose(security_ctx, "ScanStatus status " + str(resp.status))
|
|
if resp.status != 0:
|
|
raise RuntimeError
|
|
return {"finished": resp.resp_scan_status.scan_finished, "count": resp.resp_scan_status.result_count}
|
|
|
|
|
|
def scan_result_request(security_ctx, index, count):
|
|
# Form protobuf request packet for ScanResult command
|
|
cmd = proto.wifi_scan_pb2.WiFiScanPayload()
|
|
cmd.msg = proto.wifi_scan_pb2.TypeCmdScanResult
|
|
cmd.cmd_scan_result.start_index = index
|
|
cmd.cmd_scan_result.count = count
|
|
enc_cmd = security_ctx.encrypt_data(cmd.SerializeToString()).decode('latin-1')
|
|
print_verbose(security_ctx, "Client -> Device (Encrypted CmdScanResult) " + utils.str_to_hexstr(enc_cmd))
|
|
return enc_cmd
|
|
|
|
|
|
def scan_result_response(security_ctx, response_data):
|
|
# Interpret protobuf response packet from ScanResult command
|
|
dec_resp = security_ctx.decrypt_data(tobytes(response_data))
|
|
resp = proto.wifi_scan_pb2.WiFiScanPayload()
|
|
resp.ParseFromString(dec_resp)
|
|
print_verbose(security_ctx, "ScanResult status " + str(resp.status))
|
|
if resp.status != 0:
|
|
raise RuntimeError
|
|
authmode_str = ["Open", "WEP", "WPA_PSK", "WPA2_PSK", "WPA_WPA2_PSK", "WPA2_ENTERPRISE"]
|
|
results = []
|
|
for entry in resp.resp_scan_result.entries:
|
|
results += [{"ssid": entry.ssid.decode('latin-1').rstrip('\x00'),
|
|
"bssid": utils.str_to_hexstr(entry.bssid.decode('latin-1')),
|
|
"channel": entry.channel,
|
|
"rssi": entry.rssi,
|
|
"auth": authmode_str[entry.auth]}]
|
|
print_verbose(security_ctx, "ScanResult SSID : " + str(results[-1]["ssid"]))
|
|
print_verbose(security_ctx, "ScanResult BSSID : " + str(results[-1]["bssid"]))
|
|
print_verbose(security_ctx, "ScanResult Channel : " + str(results[-1]["channel"]))
|
|
print_verbose(security_ctx, "ScanResult RSSI : " + str(results[-1]["rssi"]))
|
|
print_verbose(security_ctx, "ScanResult AUTH : " + str(results[-1]["auth"]))
|
|
return results
|