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This commit is contained in:
clowwindy 2014-06-19 09:20:04 +08:00
parent e811bdb891
commit 46d23bf0d4
3 changed files with 16 additions and 5 deletions
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12
shadowsocks/udprelay.py
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@ -133,6 +133,8 @@ class UDPRelay(object):
def _handle_server(self):
server = self._server_socket
data, r_addr = server.recvfrom(BUF_SIZE)
if not data:
logging.debug('UDP handle_server: data is empty')
if self._is_local:
frag = ord(data[2])
if frag != 0:
@ -141,9 +143,10 @@ class UDPRelay(object):
else:
data = data[3:]
else:
# decrypt data
data = encrypt.encrypt_all(self._password, self._method, 0, data)
# decrypt data
if not data:
logging.debug('UDP handle_server: data is empty after decrypt')
return
header_result = parse_header(data)
if header_result is None:
@ -191,6 +194,9 @@ class UDPRelay(object):
def _handle_client(self, sock):
data, r_addr = sock.recvfrom(BUF_SIZE)
if not data:
logging.debug('UDP handle_client: data is empty')
return
if not self._is_local:
addrlen = len(r_addr[0])
if addrlen > 255:
@ -235,8 +241,12 @@ class UDPRelay(object):
def _handle_events(self, events):
for sock, fd, event in events:
if sock == self._server_socket:
if event & eventloop.POLL_ERR:
logging.error('UDP server_socket err')
self._handle_server()
elif sock and (fd in self._sockets):
if event & eventloop.POLL_ERR:
logging.error('UDP client_socket err')
self._handle_client(sock)
now = time.time()
if now - self._last_time > 3.5: