def convert_offer_to_request_select(self):
"""
На основании последнего полученного пакета Offer создает Request Select
:return: None
:exception: AttributeError если еще не было Offer
"""
packet = self._get_last_offer()
if not packet:
self._raise_no_packet_exception()
self._current_packet_send = PacketUtils.convert_offer_to_request_select(self._get_last_offer())
logging.info(
"Last Offer packet with xid = %s converted to Request Select and ready to send", self.get_xid_send()
)
def convert_request_select_to_release(self):
"""
На основании последнего отправленного пакета Request Select создает Release
:return: None
:exception: AttributeError если еще не было Release
"""
packet = self._get_last_request_select()
if not packet:
self._raise_no_packet_exception()
self._current_packet_send = PacketUtils.convert_request_select_to_release(packet)
logging.info(
"Last Request Select packet with xid = %s converted to Release and ready to send", self.get_xid_send()
)
def get_last_offer_lease_time(self):
"""
Возвращает Lease time последнего полученного пакета Offer
:return: Lease time в сек.
:exception: AttributeError если еще не было Offer
"""
packet = self._get_last_offer()
if not packet:
self._raise_no_packet_exception()
lt = packet.GetOption("ip_address_lease_time")
lt_str = int(PacketUtils.convert_32bit_to_str(lt))
logging.info("Last Offer receive Lease time = %s", lt_str)
return lt_str
def get_last_offer_lease_time(self):
"""
Возвращает Lease time последнего полученного пакета Offer
:return: Lease time в сек.
:exception: AttributeError если еще не было Offer
"""
packet = self._get_last_offer()
if not packet:
self._raise_no_packet_exception()
lt = packet.GetOption('ip_address_lease_time')
lt_str = int(PacketUtils.convert_32bit_to_str(lt))
logging.info('Last Offer receive Lease time = %s', lt_str)
return lt_str
def convert_offer_to_request_select(self):
"""
На основании последнего полученного пакета Offer создает Request Select
:return: None
:exception: AttributeError если еще не было Offer
"""
packet = self._get_last_offer()
if not packet:
self._raise_no_packet_exception()
self._current_packet_send = PacketUtils.convert_offer_to_request_select(
self._get_last_offer())
logging.info(
'Last Offer packet with xid = %s converted to Request Select and ready to send',
self.get_xid_send())
def convert_request_select_to_release(self):
"""
На основании последнего отправленного пакета Request Select создает Release
:return: None
:exception: AttributeError если еще не было Release
"""
packet = self._get_last_request_select()
if not packet:
self._raise_no_packet_exception()
self._current_packet_send = PacketUtils.convert_request_select_to_release(
packet)
logging.info(
'Last Request Select packet with xid = %s converted to Release and ready to send',
self.get_xid_send())
def set_packet_chaddr(self, value, log=True):
self._current_packet_send.SetOption("chaddr", PacketUtils._convert_chaddr_from_str(value))
if log:
logging.info('Set option "chaddr" as = "%s"', value)
def set_packet_opt82(self, value, log=True):
self._current_packet_send.SetOption("relay_agent", PacketUtils.convert_opt82_from_str(value))
if log:
logging.info('Set option "option 82" as = "%s"', value)
def get_xid_send(self):
return PacketUtils.convert_ipv4_to_str(self._current_packet_send.GetOption("xid"))
def get_xid_received(self):
return PacketUtils.convert_ipv4_to_str(self.get_current_packet_receive().GetOption("xid"))
def set_packet_chaddr(self, value, log=True):
self._current_packet_send.SetOption(
"chaddr", PacketUtils._convert_chaddr_from_str(value))
if log:
logging.info('Set option "chaddr" as = "%s"', value)
def set_packet_opt82(self, value, log=True):
self._current_packet_send.SetOption(
"relay_agent", PacketUtils.convert_opt82_from_str(value))
if log:
logging.info('Set option "option 82" as = "%s"', value)
def get_xid_send(self):
return PacketUtils.convert_ipv4_to_str(
self._current_packet_send.GetOption('xid'))
def get_xid_received(self):
return PacketUtils.convert_ipv4_to_str(
self.get_current_packet_receive().GetOption('xid'))
