def _connect_tcp(self, peer_addr, conn_handler, time_out=None,
bind_address=None, password=None):
"""Creates a TCP connection to given peer address.
Tries to create a socket for `timeout` number of seconds. If
successful, uses the socket instance to start `client_factory`.
The socket is bound to `bind_address` if specified.
"""
LOG.debug('Connect TCP called for %s:%s', peer_addr[0], peer_addr[1])
if netaddr.valid_ipv4(peer_addr[0]):
family = socket.AF_INET
else:
family = socket.AF_INET6
with Timeout(time_out, socket.error):
sock = socket.socket(family)
if bind_address:
sock.bind(bind_address)
if password:
sockopt.set_tcp_md5sig(sock, peer_addr[0], password)
sock.connect(peer_addr)
# socket.error exception is raised in case of timeout and
# the following code is executed only when the connection
# is established.
# Connection name for pro-active connection is made up of
# local end address + remote end address
local = self.get_localname(sock)[0]
remote = self.get_remotename(sock)[0]
conn_name = ('L: ' + local + ', R: ' + remote)
self._asso_socket_map[conn_name] = sock
# If connection is established, we call connection handler
# in a new thread.
self._spawn(conn_name, conn_handler, sock)
return sock
def _set_password(self, address, password):
if netaddr.valid_ipv4(address):
family = socket.AF_INET
else:
family = socket.AF_INET6
for sock in self.listen_sockets.values():
if sock.family == family:
sockopt.set_tcp_md5sig(sock, address, password)
