def stuff(self):
# create Packet struct HERE and ALWAYS free it
# how does this report failure? I guess the only conceivable failure
# mode is OOM.
pkt = None
pfptr = None
try:
pkt = _pkt.newPkt()
if pkt is None:
raise RuntimeError("newPkt failure")
# set pkt fields using raw api
_pkt._Pkt_pkttype_set(pkt, self.pkttype['suffix'])
_pkt._Pkt_srcnameparts_set(pkt, *[self.srcnameparts[k] for k in
self._srcnamefields])
_pkt._Pkt.time_set(pkt, self.time)
# stuff packet
if self.pfdict is not None:
# make a new pf
pfptr = _stock.pfnew()
if pfptr is None:
raise RuntimeError("pfnew")
# copy pfdict into new pf
# TODO this might not actually work, might have to iterate over
# items and put each one.
_stock.pfput(None, self.pfdict, pfptr)
# attach pfptr to pkt
_pkt._Pkt_pfptr_set(pkt, pfptr)
type, packet, srcname, time = _pkt._stuffPkt(pkt)
return type, packet, srcname, time
finally:
if pkt is not None:
_pkt._freePkt(pkt)
if pfptr is not None:
_stock.pffree(pfptr)
def unstuff(self, srcname, time, raw_packet):
pkt = None
try:
type, pkt = _pkt._unstuffPkt(srcname, time, raw_packet)
check_error(type, UnstuffError)
self.string = _pkt._Pkt_string_get(pkt)
self.pkttype.update(dict(zip(self._pkttypefields,
_pkt._Pkt_pkttype_get(pkt))))
if _pkt._Pkt_type_get(pkt) == _pkt.Pkt_pf:
pfptr = _pkt._Pkt_pfptr_get(pkt)
if pfptr != None:
try:
self.pfdict = _stock._pfget(pfptr, None)
finally:
_stock._pffree(pfptr)
self.time = time
finally:
if pkt is not None:
_pkt._freePkt(pkt)