def GetNextDhcpPacket(self) :
if self.filedesc and self.binary :
packet = dhcp_packet.DhcpPacket()
data = self.filedesc.read(4096)
packet.DecodePacket(data)
return packet
elif self.filedesc and not self.binary :
packet = dhcp_packet.DhcpPacket()
for line in self.filedesc : packet.AddLine(line)
return packet
def HandleDhcpPacket(self, data, sender):
packet = dhcp_packet.DhcpPacket()
packet.DecodePacket(data)
packet.set_sender( sender )
self.HandleDhcpAll(packet)
if packet.IsDhcpDiscoverPacket():
self.HandleDhcpDiscover(packet)
elif packet.IsDhcpRequestPacket():
self.HandleDhcpRequest(packet)
elif packet.IsDhcpDeclinePacket():
self.HandleDhcpDecline(packet)
elif packet.IsDhcpReleasePacket():
self.HandleDhcpRelease(packet)
elif packet.IsDhcpInformPacket():
self.HandleDhcpInform(packet)
elif packet.IsDhcpOfferPacket():
self.HandleDhcpOffer(packet)
elif packet.IsDhcpAckPacket():
self.HandleDhcpAck(packet)
elif packet.IsDhcpNackPacket():
self.HandleDhcpNack(packet)
else: self.HandleDhcpUnknown(packet)
return packet
def r_conversion():
rawdata = rawdata = sys.stdin.read()
while (len(rawdata) > 0):
readdata = dhcp_packet.DhcpPacket()
readdata.DecodePacket(rawdata)
readdata.PrintHeaders()
readdata.PrintOptions()
rawdata = rawdata = sys.stdin.read()
def GetNextDhcpPacket(self, timeout=60):
data = ""
while data == "":
data_input, data_output, data_except = select.select(
[self.dhcp_socket], [], [], timeout)
if (data_input != []):
(data, source_address) = self.dhcp_socket.recvfrom(2048)
else:
return None
if data != "":
packet = dhcp_packet.DhcpPacket()
packet.source_address = source_address
packet.DecodePacket(data)
self.HandleDhcpAll(packet)
if packet.IsDhcpDiscoverPacket():
self.HandleDhcpDiscover(packet)
elif packet.IsDhcpRequestPacket():
self.HandleDhcpRequest(packet)
elif packet.IsDhcpDeclinePacket():
self.HandleDhcpDecline(packet)
elif packet.IsDhcpReleasePacket():
self.HandleDhcpRelease(packet)
elif packet.IsDhcpInformPacket():
self.HandleDhcpInform(packet)
elif packet.IsDhcpOfferPacket():
self.HandleDhcpOffer(packet)
elif packet.IsDhcpAckPacket():
self.HandleDhcpAck(packet)
elif packet.IsDhcpNackPacket():
self.HandleDhcpNack(packet)
else:
self.HandleDhcpUnknown(packet)
return packet
