def __init__(self, raw=None, prev=None, **kw):
packet_base.__init__(self)
self.prev = prev
self.op = 0
self.htype = 0
self.hlen = 0
self.hops = 0
self.xid = 0
self.secs = 0
self.flags = 0
self.ciaddr = IP_ANY
self.yiaddr = IP_ANY
self.siaddr = IP_ANY
self.giaddr = IP_ANY
self.chaddr = None
self.sname = b''
self.file = b''
self.magic = self.MAGIC
self._raw_options = b''
if raw is not None:
self.parse(raw)
else:
self.options = util.DirtyDict()
self._init(kw)
def parseOptions(self):
self.options = util.DirtyDict()
self.parseOptionSegment(self._raw_options)
if dhcp.OVERLOAD_OPT in self.options:
opt_val = self.options[dhcp.OVERLOAD_OPT]
if len(opt_val) != 1:
self.warn('DHCP overload option has bad len %u' %
(len(opt_val), ))
return
if opt_val == 1 or opt_val == 3:
self.parseOptionSegment(self.file)
if opt_val == 2 or opt_val == 3:
self.parseOptionSegment(self.sname)
