import collections
import time
import codecs
+import traceback
import re as regexp
INIT = NamedConstant()
QUEUE = NamedConstant()
QUEUE_CTRL = NamedConstant()
+ HTTP_FULL = NamedConstant()
+ SLIP_FULL = NamedConstant()
_hex_codec = codecs.getencoder('hex_codec')
log = twisted.logger.Logger()
def log_debug(dflag, msg, idof=None, d=None):
+ #print('---------------->',repr((dflag, msg, idof, d)), file=sys.stderr)
if idof is not None:
msg = '[%d] %s' % (id(idof), msg)
if d is not None:
#---------- ipif (SLIP) subprocess ----------
class SlipStreamDecoder():
- def __init__(self, on_packet):
- # we will call packet(<packet>)
+ def __init__(self, desc, on_packet):
self._buffer = b''
self._on_packet = on_packet
+ self._desc = desc
+ self._log('__init__')
+
+ def _log(self, msg, **kwargs):
+ log_debug(DBG.SLIP_FULL, 'slip %s: %s' % (self._desc, msg), **kwargs)
def inputdata(self, data):
- #print('SLIP-GOT ', repr(data))
- self._buffer += data
- packets = slip.decode(self._buffer)
+ self._log('inputdata', d=data)
+ data = self._buffer + data
+ self._buffer = b''
+ packets = slip.decode(data)
self._buffer = packets.pop()
for packet in packets:
self._maybe_packet(packet)
+ self._log('bufremain', d=self._buffer)
def _maybe_packet(self, packet):
- if len(packet):
- self._on_packet(packet)
+ self._log('maybepacket', d=packet)
+ if len(packet):
+ self._on_packet(packet)
def flush(self):
+ self._log('flush')
self._maybe_packet(self._buffer)
self._buffer = b''
class _IpifProcessProtocol(twisted.internet.protocol.ProcessProtocol):
def __init__(self, router):
self._router = router
- self._decoder = SlipStreamDecoder(self.slip_on_packet)
+ self._decoder = SlipStreamDecoder('ipif', self.slip_on_packet)
def connectionMade(self): pass
def outReceived(self, data):
self._decoder.inputdata(data)
env=None)
def queue_inbound(packet):
+ log_debug(DBG.FLOW, "queue_inbound", d=packet)
ipif.transport.write(slip.delimiter)
ipif.transport.write(slip.encode(packet))
ipif.transport.write(slip.delimiter)
class PacketQueue():
def __init__(self, desc, max_queue_time):
self._desc = desc
+ assert(desc + '')
self._max_queue_time = max_queue_time
self._pq = collections.deque() # packets