321 lines
11 KiB
Python
321 lines
11 KiB
Python
# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
import re
|
|
import select
|
|
import socket
|
|
import struct
|
|
import time
|
|
from threading import Event, Thread
|
|
|
|
import dpkt
|
|
import dpkt.dns
|
|
import pytest
|
|
|
|
UDP_PORT = 5353
|
|
MCAST_GRP = '224.0.0.251'
|
|
|
|
# This service is created from esp board startup
|
|
SERVICE_NAME = u'ESP32-WebServer._http._tcp.local'
|
|
SUB_SERVICE_NAME = u'_server._sub._http._tcp.local'
|
|
|
|
# This host name answer sent by host, when there is query from board
|
|
HOST_NAME = u'tinytester.local'
|
|
|
|
# This servce answer sent by host, when there is query from board
|
|
MDNS_HOST_SERVICE = u'ESP32._http._tcp.local'
|
|
|
|
# Number of retries to receive mdns answear
|
|
RETRY_COUNT = 10
|
|
|
|
stop_mdns_listener = Event()
|
|
start_mdns_listener = Event()
|
|
esp_service_answered = Event()
|
|
esp_sub_service_answered = Event()
|
|
esp_host_answered = Event()
|
|
esp_delegated_host_answered = Event()
|
|
|
|
|
|
@pytest.mark.skip
|
|
# Get query of ESP32-WebServer._http._tcp.local service
|
|
def get_mdns_service_query(service): # type:(str) -> dpkt.dns.Msg
|
|
dns = dpkt.dns.DNS()
|
|
dns.op = dpkt.dns.DNS_QR | dpkt.dns.DNS_AA
|
|
dns.rcode = dpkt.dns.DNS_RCODE_NOERR
|
|
arr = dpkt.dns.DNS.RR()
|
|
arr.cls = dpkt.dns.DNS_IN
|
|
arr.type = dpkt.dns.DNS_SRV
|
|
arr.name = service
|
|
arr.target = socket.inet_aton('127.0.0.1')
|
|
arr.srvname = service
|
|
dns.qd.append(arr)
|
|
print('Created mdns service query: {} '.format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
@pytest.mark.skip
|
|
# Get query of _server_.sub._http._tcp.local sub service
|
|
def get_mdns_sub_service_query(sub_service): # type:(str) -> dpkt.dns.Msg
|
|
dns = dpkt.dns.DNS()
|
|
dns.op = dpkt.dns.DNS_QR | dpkt.dns.DNS_AA
|
|
dns.rcode = dpkt.dns.DNS_RCODE_NOERR
|
|
arr = dpkt.dns.DNS.RR()
|
|
arr.cls = dpkt.dns.DNS_IN
|
|
arr.type = dpkt.dns.DNS_PTR
|
|
arr.name = sub_service
|
|
arr.target = socket.inet_aton('127.0.0.1')
|
|
arr.ptrname = sub_service
|
|
dns.qd.append(arr)
|
|
print('Created mdns subtype service query: {} '.format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
@pytest.mark.skip
|
|
# Get query for host resolution
|
|
def get_dns_query_for_esp(esp_host): # type:(str) -> dpkt.dns.Msg
|
|
dns = dpkt.dns.DNS()
|
|
arr = dpkt.dns.DNS.RR()
|
|
arr.cls = dpkt.dns.DNS_IN
|
|
arr.name = esp_host + u'.local'
|
|
dns.qd.append(arr)
|
|
print('Created query for esp host: {} '.format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
@pytest.mark.skip
|
|
# Get mdns answer for host resoloution
|
|
def get_dns_answer_to_mdns(tester_host): # type:(str) -> dpkt.dns.Msg
|
|
dns = dpkt.dns.DNS()
|
|
dns.op = dpkt.dns.DNS_QR | dpkt.dns.DNS_AA
|
|
dns.rcode = dpkt.dns.DNS_RCODE_NOERR
|
|
arr = dpkt.dns.DNS.RR()
|
|
arr.cls = dpkt.dns.DNS_IN
|
|
arr.type = dpkt.dns.DNS_A
|
|
arr.name = tester_host
|
|
arr.ip = socket.inet_aton('127.0.0.1')
|
|
dns.an.append(arr)
|
|
print('Created answer to mdns query: {} '.format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
@pytest.mark.skip
|
|
# Get mdns answer for service query
|
|
def get_dns_answer_to_service_query(
|
|
mdns_service): # type:(str) -> dpkt.dns.Msg
|
|
dns = dpkt.dns.DNS()
|
|
dns.op = dpkt.dns.DNS_QR | dpkt.dns.DNS_AA
|
|
dns.rcode = dpkt.dns.DNS_RCODE_NOERR
|
|
arr = dpkt.dns.DNS.RR()
|
|
arr.name = mdns_service
|
|
arr.cls = dpkt.dns.DNS_IN
|
|
arr.type = dpkt.dns.DNS_SRV
|
|
arr.priority = 0
|
|
arr.weight = 0
|
|
arr.port = 100
|
|
arr.srvname = mdns_service
|
|
arr.ip = socket.inet_aton('127.0.0.1')
|
|
dns.an.append(arr)
|
|
print('Created answer to mdns query: {} '.format(dns.__repr__()))
|
|
return dns.pack()
|
|
|
|
|
|
@pytest.mark.skip
|
|
def mdns_listener(esp_host): # type:(str) -> None
|
|
print('mdns_listener thread started')
|
|
|
|
UDP_IP = '0.0.0.0'
|
|
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
|
|
sock.setblocking(False)
|
|
sock.bind((UDP_IP, UDP_PORT))
|
|
mreq = struct.pack('4sl', socket.inet_aton(MCAST_GRP), socket.INADDR_ANY)
|
|
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
|
|
last_query_timepoint = time.time()
|
|
QUERY_TIMEOUT = 0.2
|
|
while not stop_mdns_listener.is_set():
|
|
try:
|
|
start_mdns_listener.set()
|
|
current_time = time.time()
|
|
if current_time - last_query_timepoint > QUERY_TIMEOUT:
|
|
last_query_timepoint = current_time
|
|
timeout = max(
|
|
0, QUERY_TIMEOUT - (current_time - last_query_timepoint))
|
|
read_socks, _, _ = select.select([sock], [], [], timeout)
|
|
if not read_socks:
|
|
continue
|
|
data, _ = sock.recvfrom(1024)
|
|
dns = dpkt.dns.DNS(data)
|
|
# Receives queries from esp board and sends answers
|
|
if len(dns.qd) > 0:
|
|
if dns.qd[0].name == HOST_NAME:
|
|
print('Received query: {} '.format(dns.__repr__()))
|
|
sock.sendto(get_dns_answer_to_mdns(HOST_NAME),
|
|
(MCAST_GRP, UDP_PORT))
|
|
if dns.qd[0].name == HOST_NAME:
|
|
print('Received query: {} '.format(dns.__repr__()))
|
|
sock.sendto(get_dns_answer_to_mdns(HOST_NAME),
|
|
(MCAST_GRP, UDP_PORT))
|
|
if dns.qd[0].name == MDNS_HOST_SERVICE:
|
|
print('Received query: {} '.format(dns.__repr__()))
|
|
sock.sendto(
|
|
get_dns_answer_to_service_query(MDNS_HOST_SERVICE),
|
|
(MCAST_GRP, UDP_PORT))
|
|
# Receives answers from esp board and sets event flags for python test cases
|
|
if len(dns.an) == 1:
|
|
if dns.an[0].name.startswith(SERVICE_NAME):
|
|
print('Received answer to service query: {}'.format(
|
|
dns.__repr__()))
|
|
esp_service_answered.set()
|
|
if len(dns.an) > 1:
|
|
if dns.an[1].name.startswith(SUB_SERVICE_NAME):
|
|
print('Received answer for sub service query: {}'.format(
|
|
dns.__repr__()))
|
|
esp_sub_service_answered.set()
|
|
if len(dns.an) > 0 and dns.an[0].type == dpkt.dns.DNS_A:
|
|
if dns.an[0].name == esp_host + u'.local':
|
|
print('Received answer to esp32-mdns query: {}'.format(
|
|
dns.__repr__()))
|
|
esp_host_answered.set()
|
|
if dns.an[0].name == esp_host + u'-delegated.local':
|
|
print('Received answer to esp32-mdns-delegate query: {}'.
|
|
format(dns.__repr__()))
|
|
esp_delegated_host_answered.set()
|
|
except socket.timeout:
|
|
break
|
|
except dpkt.UnpackError:
|
|
continue
|
|
|
|
|
|
@pytest.mark.skip
|
|
def create_socket(): # type:() -> socket.socket
|
|
UDP_IP = '0.0.0.0'
|
|
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
|
|
sock.setblocking(False)
|
|
sock.bind((UDP_IP, UDP_PORT))
|
|
mreq = struct.pack('4sl', socket.inet_aton(MCAST_GRP), socket.INADDR_ANY)
|
|
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
|
|
return sock
|
|
|
|
|
|
@pytest.mark.skip
|
|
def test_query_dns_http_service(service): # type: (str) -> None
|
|
print('SRV: Query {}'.format(service))
|
|
sock = create_socket()
|
|
packet = get_mdns_service_query(service)
|
|
for _ in range(RETRY_COUNT):
|
|
if esp_service_answered.wait(timeout=25):
|
|
break
|
|
sock.sendto(packet, (MCAST_GRP, UDP_PORT))
|
|
else:
|
|
raise RuntimeError(
|
|
'Test has failed: did not receive mdns answer within timeout')
|
|
|
|
|
|
@pytest.mark.skip
|
|
def test_query_dns_sub_service(sub_service): # type: (str) -> None
|
|
print('PTR: Query {}'.format(sub_service))
|
|
sock = create_socket()
|
|
packet = get_mdns_sub_service_query(sub_service)
|
|
for _ in range(RETRY_COUNT):
|
|
if esp_sub_service_answered.wait(timeout=25):
|
|
break
|
|
sock.sendto(packet, (MCAST_GRP, UDP_PORT))
|
|
else:
|
|
raise RuntimeError(
|
|
'Test has failed: did not receive mdns answer within timeout')
|
|
|
|
|
|
@pytest.mark.skip
|
|
def test_query_dns_host(esp_host): # type: (str) -> None
|
|
print('A: {}'.format(esp_host))
|
|
sock = create_socket()
|
|
packet = get_dns_query_for_esp(esp_host)
|
|
for _ in range(RETRY_COUNT):
|
|
if esp_host_answered.wait(timeout=25):
|
|
break
|
|
sock.sendto(packet, (MCAST_GRP, UDP_PORT))
|
|
else:
|
|
raise RuntimeError(
|
|
'Test has failed: did not receive mdns answer within timeout')
|
|
|
|
|
|
@pytest.mark.skip
|
|
def test_query_dns_host_delegated(esp_host): # type: (str) -> None
|
|
print('A: {}'.format(esp_host))
|
|
sock = create_socket()
|
|
packet = get_dns_query_for_esp(esp_host + '-delegated')
|
|
for _ in range(RETRY_COUNT):
|
|
if esp_delegated_host_answered.wait(timeout=25):
|
|
break
|
|
sock.sendto(packet, (MCAST_GRP, UDP_PORT))
|
|
else:
|
|
raise RuntimeError(
|
|
'Test has failed: did not receive mdns answer within timeout')
|
|
|
|
|
|
@pytest.mark.esp32
|
|
@pytest.mark.esp32s2
|
|
@pytest.mark.esp32c3
|
|
@pytest.mark.generic
|
|
def test_app_esp_mdns(dut):
|
|
|
|
# 1. get the dut host name (and IP address)
|
|
specific_host = dut.expect(
|
|
re.compile(b'mdns hostname set to: \[([^\]]+)\]'), # noqa: W605
|
|
timeout=30).group(1).decode()
|
|
|
|
esp_ip = dut.expect(
|
|
re.compile(
|
|
b' IPv4 address: ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)'), # noqa: W605
|
|
timeout=30).group(1).decode()
|
|
print('Got IP={}'.format(esp_ip))
|
|
|
|
mdns_responder = Thread(target=mdns_listener, args=(str(specific_host), ))
|
|
|
|
def start_case(case, desc, result): # type: (str, str, str) -> None
|
|
print('Starting {}: {}'.format(case, desc))
|
|
dut.write(case)
|
|
res = bytes(result, encoding='utf8')
|
|
dut.expect(re.compile(res), timeout=30)
|
|
|
|
try:
|
|
# start dns listener thread
|
|
mdns_responder.start()
|
|
|
|
# wait untill mdns listener thred started
|
|
if not start_mdns_listener.wait(timeout=5):
|
|
raise ValueError(
|
|
'Test has failed: mdns listener thread did not start')
|
|
|
|
# query dns service from host, answer should be received from esp board
|
|
test_query_dns_http_service(SERVICE_NAME)
|
|
|
|
# query dns sub-service from host, answer should be received from esp board
|
|
test_query_dns_sub_service(SUB_SERVICE_NAME)
|
|
|
|
# query dns host name, answer should be received from esp board
|
|
test_query_dns_host(specific_host)
|
|
|
|
# query dns host name delegated, answer should be received from esp board
|
|
test_query_dns_host_delegated(specific_host)
|
|
|
|
# query service from esp board, answer should be received from host
|
|
start_case('CONFIG_TEST_QUERY_SERVICE',
|
|
'Query SRV ESP32._http._tcp.local', 'SRV:ESP32')
|
|
|
|
# query dns-host from esp board, answer should be received from host
|
|
start_case('CONFIG_TEST_QUERY_HOST', 'Query tinytester.local',
|
|
'tinytester.local resolved to: 127.0.0.1')
|
|
|
|
# query dns-host aynchrounusely from esp board, answer should be received from host
|
|
start_case('CONFIG_TEST_QUERY_HOST_ASYNC',
|
|
'Query tinytester.local async',
|
|
'Async query resolved to A:127.0.0.1')
|
|
|
|
finally:
|
|
stop_mdns_listener.set()
|
|
mdns_responder.join()
|