class __RXCSniffService(baseService):
import crcmod
data_crc = staticmethod(crcmod.mkCrcFun(0x18005))
def getNeededSizeForMagic(self, b):
if b == 0xA0:
return 5
return 1
def __init__(self):
self.last_rxcmd = 0
self.usbbuf = []
self.highspeed = False
self.ui = USBInterpreter(self.highspeed)
self.handlers = [self.handle_usb_verbose]
self.got_start = False
def matchMagic(self, byt):
return byt == 0xAC or byt == 0xAD or byt == 0xA0
def getPacketSize(self, buf):
if buf[0] != 0xA0:
return 2
else:
#print("SIZING: %s" % " ".join("%02x" %i for i in buf))
return (buf[4] << 8 | buf[3]) + 8
def consume(self, buf):
if buf[0] == 0xA0:
flags = buf[1] | buf[2] << 8
ts = buf[5] | buf[6] << 8 | buf[7] << 16
if flags != 0 and flags != HF0_FIRST and flags != HF0_LAST:
print("PERR: %04X (%s)" % (flags, decode_flags(flags)))
if flags & HF0_FIRST:
self.got_start = True
if self.got_start:
self.handle_usb(ts, buf[8:], flags)
if flags & HF0_LAST:
self.got_start = False
def handle_usb(self, ts, buf, flags):
for handler in self.handlers:
handler(ts, buf, flags)
def handle_usb_verbose(self, ts, buf, flags):
# ChandlePacket(ts, flags, buf, len(buf))
self.ui.handlePacket(ts, buf, flags)
def __init__(self):
self.last_rxcmd = 0
self.usbbuf = []
self.highspeed = False
self.ui = USBInterpreter(self.highspeed)
self.handlers = [self.handle_usb_verbose]
self.got_start = False