esp-idf/examples/network/simple_sniffer/pytest_simple_sniffer.py

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# SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0
import pytest
from common_test_methods import get_env_config_variable
from pytest_embedded import Dut
def _sniffer_packets_check(dut: Dut, channel: int, packet_num: int) -> None:
dut.write('pcap --open -f simple-sniffer')
dut.expect('cmd_pcap: open file successfully')
dut.write(f'sniffer -i wlan -c {channel} -n {packet_num}')
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dut.expect(f'cmd_sniffer: {packet_num} packages will be captured')
dut.expect('cmd_sniffer: start WiFi promiscuous ok')
dut.expect('cmd_sniffer: stop promiscuous ok')
dut.write('pcap --summary -f simple-sniffer')
dut.expect('cmd_pcap: Memory is to be parsed')
dut.expect('Pcap packet Head:')
dut.expect('Magic Number: a1b2c3d4')
dut.expect(r'Major Version: [0-9]+')
dut.expect(r'Minor Version: [0-9]+')
dut.expect(r'SnapLen: [0-9]+')
dut.expect(r'LinkType: [0-9]+')
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for i in range(0, packet_num):
dut.expect(f'Packet {i}:')
dut.expect(r'Timestamp \(Seconds\): [0-9]+')
dut.expect(r'Timestamp \(Microseconds\): [0-9]+')
dut.expect(r'Capture Length: [0-9]+')
dut.expect(r'Packet Length: [0-9]+')
dut.expect(r'Frame Type:\s+\w+')
dut.expect(r'Frame Subtype:\s+\w+')
dut.expect(r'Destination:\s+\w+')
dut.expect(r'Source:\s+\w+')
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dut.expect(f'Pcap packet Number: {packet_num}')
dut.write('pcap --close -f simple-sniffer')
dut.expect('cmd_pcap: free memory successfully')
dut.expect('cmd_pcap: .pcap file close done')
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@pytest.mark.esp32
@pytest.mark.wifi_ap
@pytest.mark.parametrize('config', [
'mem',
], indirect=True)
def test_examples_simple_sniffer(dut: Dut) -> None:
dut.expect('sniffer>')
channel = get_env_config_variable('wifi_ap', 'sniffer_channel', default=1)
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# Sniffer multiple times with few packets
for _ in range(3):
_sniffer_packets_check(dut, channel, 5)
dut.write('')
dut.expect('sniffer>')