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mdns: fix mdns probe/reply behavior

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* send correct hostnames when probing.
* add test for mdns host delegation.


* Original commit: espressif/esp-idf@d2a5d25984
This commit is contained in:
Jiacheng Guo
2021-04-15 20:03:53 +08:00
committed by suren-gabrielyan-espressif
parent 4049b3b5ed
commit 418fb60dd9
5 changed files with 80 additions and 47 deletions
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8
examples/protocols/mdns/mdns_example_test.py
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@ -13,6 +13,7 @@ from tiny_test_fw import DUT
stop_mdns_server = Event()
esp_answered = Event()
esp_delegated_answered = Event()
def get_dns_query_for_esp(esp_host):
@ -68,6 +69,8 @@ def mdns_server(esp_host):
if not esp_answered.is_set():
sock.sendto(get_dns_query_for_esp(esp_host), (MCAST_GRP,UDP_PORT))
time.sleep(0.2)
sock.sendto(get_dns_query_for_esp(esp_host + '-delegated'), (MCAST_GRP,UDP_PORT))
time.sleep(0.2)
data, addr = sock.recvfrom(1024)
dns = dpkt.dns.DNS(data)
if len(dns.qd) > 0 and dns.qd[0].type == dpkt.dns.DNS_A:
@ -81,6 +84,9 @@ def mdns_server(esp_host):
if dns.an[0].name == esp_host + u'.local':
print('Received answer to esp32-mdns query: {}'.format(dns.__repr__()))
esp_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_answered.set()
except socket.timeout:
break
except dpkt.UnpackError:
@ -120,6 +126,8 @@ def test_examples_protocol_mdns(env, extra_data):
# 3. check the mdns name is accessible
if not esp_answered.wait(timeout=30):
raise ValueError('Test has failed: did not receive mdns answer within timeout')
if not esp_delegated_answered.wait(timeout=30):
raise ValueError('Test has failed: did not receive mdns answer for delegated host within timeout')
# 4. check DUT output if mdns advertized host is resolved
dut1.expect(re.compile(r'mdns-test: Query A: tinytester.local resolved to: 127.0.0.1'), timeout=30)
dut1.expect(re.compile(r'mdns-test: gethostbyname: tinytester-lwip.local resolved to: 127.0.0.1'), timeout=30)