for (bit, ss, es) in self.bits:
packet += bit
+ if len(packet) < 8:
+ self.putp([28, ['Invalid packet (shorter than 8 bits)']])
+ return
+
# Bits[0:7]: SYNC
sync = packet[:7 + 1]
self.ss, self.es = self.bits[0][1], self.bits[7][2]
self.putb([0, ['SYNC: %s' % sync, 'SYNC', 'S']])
self.packet.append(sync)
+ if len(packet) < 16:
+ self.putp([28, ['Invalid packet (shorter than 16 bits)']])
+ return
+
# Bits[8:15]: PID
pid = packet[8:15 + 1]
- pidname = pids.get(pid, (pid, ''))[0]
+ pidname = pids.get(pid, ('UNKNOWN', 'Unknown PID'))[0]
self.ss, self.es = self.bits[8][1], self.bits[15][2]
self.putpb(['PID', pidname])
self.putb([2, ['PID: %s' % pidname, pidname, pidname[0]]])
self.packet_summary += pidname
if pidname in ('OUT', 'IN', 'SOF', 'SETUP', 'PRE', 'PING'):
+ if len(packet) < 32:
+ self.putp([28, ['Invalid packet (shorter than 32 bits)']])
+ return
+
if pidname == 'SOF':
# Bits[16:26]: Framenum
framenum = bitstr_to_num(packet[16:26 + 1])
elif ptype == 'EOP':
self.es_packet = es
self.handle_packet()
+ self.packet, self.packet_summary = [], ''
self.bits, self.state = [], 'WAIT FOR SOP'
else:
pass # TODO: Error