def __init__(self, parent, buffer, idx):
super(EthernetSNAP ,self).__init__(parent, buffer, idx)
self.snap_orgid = Header.hex2int(buffer.bytes()[17:20])
self.snap_pid = Header.hex2int(buffer.bytes()[20:22])
key = (self.snap_orgid, self.snap_pid)
self.parse_child(key, 22)
def parse(self, data):
self.addrs = []
(count,) = struct.unpack("!I", data[0:4].tostring())
idx = 4
for i in xrange(0,count):
(type, length) = struct.unpack("!BB", data[idx:idx+2].tostring())
idx += 2
protocol = Header.hex2int( data[idx:idx+length] )
idx += length
(length,) = struct.unpack("!H", data[idx:idx+2].tostring())
idx += 2
addr = data[idx:idx+length]
idx += length
for cls in [ self.IPv4Addr, self.IPv6Addr ]:
if cls.PROTO == protocol:
value = cls(addr, protocol)
self.addrs.append(value)
return "(%s)" % ", ".join(map(str, self.addrs))
def __str__(self):
return "%s(0x%04x): %s" % (self.NAME, self.type_id, Header.hex2str(self.data))
