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drop UDP message if frag != 0

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breakwa11 2015-06-10 14:21:22 +08:00
parent 7c2fe9fd56
commit 1e71fba852
1 changed files with 6 additions and 2 deletions
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8
shadowsocks/tcprelay.py
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@ -194,8 +194,12 @@ class TCPRelayHandler(object):
#logging.debug("_write_to_sock %s %s %s" % (self._remote_sock, sock, self._remote_udp))
if self._remote_sock == sock and self._remote_udp:
try:
#TODO
data = data[3:]
frag = common.ord(data[2])
if frag != 0:
logging.warn('drop a message since frag is %d' % (frag,))
return False
else:
data = data[3:]
header_result = parse_header(data)
if header_result is None:
return False