def main():
# bind/listen on all interfaces, send with a TTL of 5
group, port = '224.1.1.2', 8053
interface = sys.argv[1]
sock = mcastsocket.create_socket(
('', port),
TTL=5,
)
mcastsocket.join_group(
sock,
group=group,
iface=interface,
)
try:
print('Listening for traffic on %s:%s on ip %s' %
(group, port, interface))
while True:
readable, _, _ = select.select([sock], [], [], .5)
if readable:
message, address = sock.recvfrom(65000)
print('Received %r from %r' % (message, address))
finally:
mcastsocket.leave_group(
sock,
group=group,
iface=interface,
)
def main():
# bind/listen on all interfaces, send with a TTL of 5
group, port = '224.1.1.2', 8053
interface = sys.argv[1]
sock = mcastsocket.create_socket(
('', port),
TTL=5,
)
mcastsocket.join_group(
sock,
group=group,
iface = interface,
)
try:
print('Listening for traffic on %s:%s on ip %s'%(group,port,interface))
while True:
readable, _, _ = select.select([sock], [], [], .5)
if readable:
message, address = sock.recvfrom(65000)
print('Received %r from %r' % (message, address))
finally:
mcastsocket.leave_group(
sock,
group=group,
iface = interface,
)
def test_create_socket_v3(self):
group = '224.1.1.2'
sock = mcastsocket.create_socket(
('', 8000),
TTL=5,
)
try:
ssm = '198.51.100.23'
mcastsocket.join_group(
sock,
group=group,
iface='127.0.0.1',
# If commented out, we get a failure,
# if present, we filter... yay
ssm=ssm,
)
try:
self.send_to_group(group, b'moo')
readable, writable, _ = select.select([sock], [], [], .5)
if readable:
(content, address) = sock.recvfrom(65000)
assert not readable, (
'Should not have received the message due to ssm filtering',
address)
finally:
mcastsocket.leave_group(
sock,
group=group,
iface='127.0.0.1',
# If commented out, we get a failure,
# if present, we filter... yay
ssm=ssm,
)
finally:
sock.close()
def test_ipv6_basic(self):
group = 'ff02::2'
listen_addr = socket.getaddrinfo('::1', 8000, socket.AF_INET6,
socket.SOCK_DGRAM)[0][-1]
sock = mcastsocket.create_socket(
# group binding does *not* work
listen_addr,
TTL=5,
family=socket.AF_INET6,
)
assert sock.family == socket.AF_INET6, sock.family
mcastsocket.join_group(
sock,
group=group,
iface='lo',
)
self.send_to_group_v6(group, b'moo', family=socket.AF_INET6)
readable, writable, _ = select.select([sock], [], [], .5)
assert readable, 'Nothing received'
(content, address) = sock.recvfrom(65000)
assert content == b'moo', content
assert address[1] == 8001, address
assert address[0] == '::1', address
mcastsocket.leave_group(
sock,
group=group,
)
sock.close()
def test_ipv6_basic(self):
group = 'ff02::2'
listen_addr = socket.getaddrinfo(
'::1',
8000,
socket.AF_INET6,
socket.SOCK_DGRAM
)[0][-1]
sock = mcastsocket.create_socket(
# group binding does *not* work
listen_addr,
TTL=5,
family=socket.AF_INET6,
)
assert sock.family == socket.AF_INET6, sock.family
mcastsocket.join_group(
sock,
group=group,
iface = 'lo',
)
self.send_to_group_v6(group, b'moo', family=socket.AF_INET6)
readable, writable, _ = select.select([sock], [], [], .5)
assert readable, 'Nothing received'
(content, address) = sock.recvfrom(65000)
assert content == b'moo', content
assert address[1] == 8001, address
assert address[0] == '::1', address
mcastsocket.leave_group(
sock,
group=group,
)
sock.close()
def test_create_socket_v3(self):
group = '224.1.1.2'
sock = mcastsocket.create_socket(
('', 8000),
TTL=5,
)
try:
ssm = '198.51.100.23'
mcastsocket.join_group(
sock,
group=group,
iface='127.0.0.1',
# If commented out, we get a failure,
# if present, we filter... yay
ssm=ssm,
)
try:
self.send_to_group(group, b'moo')
readable, writable, _ = select.select([sock], [], [], .5)
if readable:
(content, address) = sock.recvfrom(65000)
assert not readable, (
'Should not have received the message due to ssm filtering', address)
finally:
mcastsocket.leave_group(
sock,
group=group,
iface='127.0.0.1',
# If commented out, we get a failure,
# if present, we filter... yay
ssm=ssm,
)
finally:
sock.close()
def sendToMulticast():
# bind/listen on all interfaces, send with a TTL of 5
group, port = 'ff02::1', 20002
interface = "wlan0"
listen_addr = socket.getaddrinfo(
'::',
port,
socket.AF_INET6,
socket.SOCK_DGRAM
)[0][-1]
sock = mcastsocket.create_socket(
listen_addr,
TTL=2,
family=socket.AF_INET6,
loop=True,
)
mcastsocket.join_group(
sock,
group=group,
iface=interface,
)
try:
_, writable, _ = select.select([], [sock], [], .5)
if writable:
msg = {
"requestTime": datetime.timestamp(datetime.now())
}
sock.sendto(json.dumps(msg).encode() , (group, port))
finally:
mcastsocket.leave_group(
sock,
group=group,
iface=interface,
)
def main():
# bind/listen on all interfaces, send with a TTL of 5
group, port = '224.1.1.2', 8053
interface = sys.argv[1]
sock = mcastsocket.create_socket(
('', port),
TTL=5,
loop=True,
)
mcastsocket.join_group(
sock,
group=group,
iface=interface,
)
try:
print('Sending traffic on %s:%s %s' % (group, port, interface))
while True:
_, writable, _ = select.select([], [sock], [], .5)
if writable:
sock.sendto(b'message', (group, port))
time.sleep(.5)
finally:
mcastsocket.leave_group(
sock,
group=group,
iface=interface,
)
def Revc():
# bind/listen on all interfaces, send with a TTL of 5
group, port = 'ff02::1', 20002
interface = "wlan0"
listen_addr = socket.getaddrinfo('::', port, socket.AF_INET6,
socket.SOCK_DGRAM)[0][-1]
sock = mcastsocket.create_socket(listen_addr,
TTL=1,
family=socket.AF_INET6)
mcastsocket.join_group(
sock,
group=group,
iface=interface,
)
try:
while True:
readable, _, _ = select.select([sock], [], [], .5)
if readable:
message, address = sock.recvfrom(65000)
message = json.loads(message.decode())
if address[0] != local_link_ipv6:
sockAddr = socket.getaddrinfo(address[0],
20003,
family=socket.AF_INET6,
proto=socket.IPPROTO_UDP)
with socket.socket(family=socket.AF_INET6,
type=socket.SOCK_DGRAM) as ss:
msg = {
"replyFrom": local_link_ipv6,
"requestTime": message["requestTime"]
}
ss.sendto(json.dumps(msg).encode(), sockAddr[0][-1])
ss.close()
finally:
mcastsocket.leave_group(
sock,
group=group,
iface=interface,
)
def main():
# bind/listen on all interfaces, send with a TTL of 5
group, port = '224.1.1.2', 8000
sock = mcastsocket.create_socket(
(group, port),
TTL=5,
)
mcastsocket.join_group(
sock,
group=group,
#iface='local_ip_to_listen',
)
sock.sendto(b'message', (group, port))
readable, [], [] = select.select([sock], [], [], .5)
assert readable
message, address = sock.recvfrom(65000)
print('Received %r from %r' % (message, address))
mcastsocket.leave_group(sock, group=group)
def main():
# bind/listen on all interfaces, send with a TTL of 5
group, port = '224.1.1.2', 8000
sock = mcastsocket.create_socket(
(group, port),
TTL=5,
)
mcastsocket.join_group(
sock,
group=group,
#iface='local_ip_to_listen',
)
sock.sendto(b'message', (group, port))
readable, [], [] = select.select([sock], [], [], .5)
assert readable
message, address = sock.recvfrom(65000)
print('Received %r from %r' % (message, address))
mcastsocket.leave_group(
sock,
group=group
)
def test_create_socket_v2(self):
group = '224.1.1.2'
sock = mcastsocket.create_socket(
('', 8000),
TTL=5,
)
mcastsocket.join_group(
sock,
group=group,
iface='127.0.0.1',
)
self.send_to_group(group, b'moo')
readable, writable, _ = select.select([sock], [], [], .5)
assert readable, 'Nothing received'
(content, address) = sock.recvfrom(65000)
assert content == b'moo', content
assert address == ('127.0.0.1', 8001), address
mcastsocket.leave_group(
sock,
group=group,
iface='127.0.0.1',
)
sock.close()
def test_create_socket_v2(self):
group = '224.1.1.2'
sock = mcastsocket.create_socket(
('', 8000),
TTL=5,
)
mcastsocket.join_group(
sock,
group=group,
iface='127.0.0.1',
)
self.send_to_group(group, b'moo')
readable, writable, _ = select.select([sock], [], [], .5)
assert readable, 'Nothing received'
(content, address) = sock.recvfrom(65000)
assert content == b'moo', content
assert address == ('127.0.0.1', 8001), address
mcastsocket.leave_group(
sock,
group=group,
iface='127.0.0.1',
)
sock.close()