def server_bind(self):
MADDR = "224.0.0.251"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR, 1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP, socket.inet_aton(MADDR) + settings.Config.IP_aton)
if OsInterfaceIsSupported():
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, settings.Config.Bind_To+'\0')
except:
pass
UDPServer.server_bind(self)
python类IP_MULTICAST_TTL的实例源码
def discover(service, timeout=5, retries=1, mx=3):
group = ("239.255.255.250", 1900)
message = "\r\n".join([
'M-SEARCH * HTTP/1.1',
'HOST: {0}:{1}',
'MAN: "ssdp:discover"',
'ST: {st}','MX: {mx}','',''])
socket.setdefaulttimeout(timeout)
responses = {}
for _ in range(retries):
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
message_bytes = message.format(*group, st=service, mx=mx).encode('utf-8')
sock.sendto(message_bytes, group)
while True:
try:
response = SSDPResponse(sock.recv(1024))
responses[response.location] = response
except socket.timeout:
break
return list(responses.values())
# Example for upnp service:
# import ssdp
# ssdp.discover("upnp:rootdevice")
def server_bind(self):
MADDR = "224.0.0.252"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,socket.inet_aton(MADDR) + settings.Config.IP_aton)
if OsInterfaceIsSupported():
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, settings.Config.Bind_To+'\0')
except:
pass
UDPServer.server_bind(self)
def server_bind(self):
MADDR = "224.0.0.251"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR, 1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP, socket.inet_aton(MADDR) + settings.Config.IP_aton)
if OsInterfaceIsSupported():
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, settings.Config.Bind_To+'\0')
except:
pass
UDPServer.server_bind(self)
def server_bind(self):
MADDR = "224.0.0.251"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,inet_aton(MADDR)+inet_aton(OURIP))
if OsInterfaceIsSupported(INTERFACE):
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, BIND_TO_Interface+'\0')
except:
pass
UDPServer.server_bind(self)
def server_bind(self):
MADDR = "224.0.0.252"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,inet_aton(MADDR)+inet_aton(OURIP))
if OsInterfaceIsSupported(INTERFACE):
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, BIND_TO_Interface+'\0')
except:
pass
UDPServer.server_bind(self)
def createUdpSocket(discoverFlags):
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 31 if (discoverFlags & SSDP_DISCOVERF_USE_TTL_31) else 1)
return sock
#
# prepares a UDP socket for multicast receives
#
def _open_multicast_socket():
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
return sock
def getTTL(self):
return self.socket.getsockopt(socket.IPPROTO_IP,
socket.IP_MULTICAST_TTL)
def setTTL(self, ttl):
ttl = struct.pack("B", ttl)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, ttl)
def getTTL(self):
return self.socket.getsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL)
def setTTL(self, ttl):
ttl = struct.pack("B", ttl)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, ttl)
def discover_bulbs(timeout=2):
"""
Discover all the bulbs in the local network.
:param int timeout: How many seconds to wait for replies. Discovery will
always take exactly this long to run, as it can't know
when all the bulbs have finished responding.
:returns: A list of dictionaries, containing the ip, port and capabilities
of each of the bulbs in the network.
"""
msg = 'M-SEARCH * HTTP/1.1\r\n' \
'ST:wifi_bulb\r\n' \
'MAN:"ssdp:discover"\r\n'
# Set up UDP socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
s.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 32)
s.settimeout(timeout)
s.sendto(msg.encode(), ('239.255.255.250', 1982))
bulbs = []
bulb_ips = set()
while True:
try:
data, addr = s.recvfrom(65507)
except socket.timeout:
break
capabilities = dict([x.strip("\r").split(": ") for x in data.decode().split("\n") if ":" in x])
parsed_url = urlparse(capabilities["Location"])
bulb_ip = (parsed_url.hostname, parsed_url.port)
if bulb_ip in bulb_ips:
continue
capabilities = {key: value for key, value in capabilities.items() if key.islower()}
bulbs.append({"ip": bulb_ip[0], "port": bulb_ip[1], "capabilities": capabilities})
bulb_ips.add(bulb_ip)
return bulbs
def server_bind(self):
MADDR = "224.0.0.252"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,socket.inet_aton(MADDR) + settings.Config.IP_aton)
if OsInterfaceIsSupported():
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, settings.Config.Bind_To+'\0')
except:
pass
UDPServer.server_bind(self)
def server_bind(self):
MADDR = "224.0.0.251"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR, 1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP, socket.inet_aton(MADDR) + settings.Config.IP_aton)
if OsInterfaceIsSupported():
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, settings.Config.Bind_To+'\0')
except:
pass
UDPServer.server_bind(self)
def server_bind(self):
MADDR = "224.0.0.251"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,inet_aton(MADDR)+inet_aton(OURIP))
if OsInterfaceIsSupported(INTERFACE):
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, BIND_TO_Interface+'\0')
except:
pass
UDPServer.server_bind(self)
def server_bind(self):
MADDR = "224.0.0.252"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,inet_aton(MADDR)+inet_aton(OURIP))
if OsInterfaceIsSupported(INTERFACE):
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, BIND_TO_Interface+'\0')
except:
pass
UDPServer.server_bind(self)
def set_ipv4_multicast_source_address(sock, source_address):
"""Sets the given socket up to send multicast from the specified source.
Ensures the multicast TTL is set to 1, so that packets are not forwarded
beyond the local link.
:param sock: An opened IP socket.
:param source_address: A string representing an IPv4 source address.
"""
sock.setsockopt(
socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 1)
sock.setsockopt(
socket.IPPROTO_IP, socket.IP_MULTICAST_IF,
socket.inet_aton(source_address))
def new_socket():
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# SO_REUSEADDR should be equivalent to SO_REUSEPORT for
# multicast UDP sockets (p 731, "TCP/IP Illustrated,
# Volume 2"), but some BSD-derived systems require
# SO_REUSEPORT to be specified explicity. Also, not all
# versions of Python have SO_REUSEPORT available.
# Catch OSError and socket.error for kernel versions <3.9 because lacking
# SO_REUSEPORT support.
try:
reuseport = socket.SO_REUSEPORT
except AttributeError:
pass
else:
try:
s.setsockopt(socket.SOL_SOCKET, reuseport, 1)
except (OSError, socket.error) as err:
# OSError on python 3, socket.error on python 2
if not err.errno == errno.ENOPROTOOPT:
raise
# OpenBSD needs the ttl and loop values for the IP_MULTICAST_TTL and
# IP_MULTICAST_LOOP socket options as an unsigned char.
ttl = struct.pack(b'B', 255)
s.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, ttl)
loop = struct.pack(b'B', 1)
s.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_LOOP, loop)
s.bind(('', _MDNS_PORT))
return s
def server_bind(self):
MADDR = "224.0.0.252"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,socket.inet_aton(MADDR) + settings.Config.IP_aton)
if OsInterfaceIsSupported():
try:
self.socket.setsockopt(socket.SOL_SOCKET, 25, settings.Config.Bind_To+'\0')
except:
pass
UDPServer.server_bind(self)
