def _grab_rsps(socks, rsps, interval, xidmap):
r, _, _ = select.select(socks, (), (), interval)
while r:
for s in r:
(rsp, peer) = s.recvfrom(9000)
neighutil.refresh_neigh()
_parse_slp_packet(rsp, peer, rsps, xidmap)
r, _, _ = select.select(socks, (), (), interval)
def _grab_rsps(socks, rsps, interval, xidmap):
r = None
res = select.select(socks, (), (), interval)
if res:
r = res[0]
while r:
for s in r:
(rsp, peer) = s.recvfrom(9000)
neighutil.refresh_neigh()
_parse_slp_packet(rsp, peer, rsps, xidmap)
res = select.select(socks, (), (), interval)
if not res:
r = None
else:
r = res[0]
def _find_service(service, target):
net4 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
net6 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
net6.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 1)
if target:
addrs = socket.getaddrinfo(target, 1900, 0, socket.SOCK_DGRAM)
for addr in addrs:
host = addr[4][0]
if addr[0] == socket.AF_INET:
net4.sendto(smsg.format(host, service), addr[4])
elif addr[0] == socket.AF_INET6:
host = '[{0}]'.format(host)
net6.sendto(smsg.format(host, service), addr[4])
else:
net4.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
for idx in util.list_interface_indexes():
net6.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, idx)
try:
net6.sendto(smsg.format('[{0}]'.format(mcastv6addr), service),
(mcastv6addr, 1900, 0, 0))
except socket.error:
# ignore interfaces without ipv6 multicast causing error
pass
for i4 in util.list_ips():
if 'broadcast' not in i4:
continue
addr = i4['addr']
bcast = i4['broadcast']
net4.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_IF,
socket.inet_aton(addr))
net4.sendto(smsg.format(mcastv4addr, service), (mcastv4addr, 1900))
net4.sendto(smsg.format(bcast, service), (bcast, 1900))
# SSDP by spec encourages responses to spread out over a 3 second interval
# hence we must be a bit more patient
deadline = util.monotonic_time() + 4
r, _, _ = select.select((net4, net6), (), (), 4)
peerdata = {}
while r:
for s in r:
(rsp, peer) = s.recvfrom(9000)
neighutil.refresh_neigh()
_parse_ssdp(peer, rsp, peerdata)
timeout = deadline - util.monotonic_time()
if timeout < 0:
timeout = 0
r, _, _ = select.select((net4, net6), (), (), timeout)
for nid in peerdata:
yield peerdata[nid]
def _find_service(service, target):
net4 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
net6 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
net6.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 1)
if target:
addrs = socket.getaddrinfo(target, 1900, 0, socket.SOCK_DGRAM)
for addr in addrs:
host = addr[4][0]
if addr[0] == socket.AF_INET:
msg = smsg.format(host, service)
if not isinstance(msg, bytes):
msg = msg.encode('utf8')
net4.sendto(msg, addr[4])
elif addr[0] == socket.AF_INET6:
host = '[{0}]'.format(host)
msg = smsg.format(host, service)
if not isinstance(msg, bytes):
msg = msg.encode('utf8')
net6.sendto(msg, addr[4])
else:
net4.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
for idx in util.list_interface_indexes():
net6.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, idx)
try:
msg = smsg.format('[{0}]'.format(mcastv6addr), service)
if not isinstance(msg, bytes):
msg = msg.encode('utf8')
net6.sendto(msg, (mcastv6addr, 1900, 0, 0))
except socket.error:
# ignore interfaces without ipv6 multicast causing error
pass
for i4 in util.list_ips():
if 'broadcast' not in i4:
continue
addr = i4['addr']
bcast = i4['broadcast']
net4.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_IF,
socket.inet_aton(addr))
msg = smsg.format(mcastv4addr, service)
if not isinstance(msg, bytes):
msg = msg.encode('utf8')
net4.sendto(msg, (mcastv4addr, 1900))
msg = smsg.format(bcast, service)
if not isinstance(msg, bytes):
msg = msg.encode('utf8')
net4.sendto(msg, (bcast, 1900))
# SSDP by spec encourages responses to spread out over a 3 second interval
# hence we must be a bit more patient
deadline = util.monotonic_time() + 4
r, _, _ = select.select((net4, net6), (), (), 4)
peerdata = {}
while r:
for s in r:
(rsp, peer) = s.recvfrom(9000)
neighutil.refresh_neigh()
_parse_ssdp(peer, rsp, peerdata)
timeout = deadline - util.monotonic_time()
if timeout < 0:
timeout = 0
r, _, _ = select.select((net4, net6), (), (), timeout)
querypool = gp.GreenPool()
pooltargs = []
for nid in peerdata:
for url in peerdata[nid].get('urls', ()):
if url.endswith('/desc.tmpl'):
pooltargs.append((url, peerdata[nid]))
for pi in querypool.imap(check_cpstorage, pooltargs):
if pi is not None:
yield pi
