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(captiveportal, new) add get_address_by_mac to arp lib

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Ad Schellevis 2015-10-14 17:09:21 +00:00
parent bc0fe3d439
commit 7ef601b2d4
1 changed files with 23 additions and 1 deletions
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24
src/opnsense/scripts/OPNsense/CaptivePortal/lib/arp.py
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@ -52,13 +52,21 @@ class ARP(object):
output_stream.seek(0)
for line in output_stream.read().split('\n'):
if line.find('(') > -1 and line.find(')') > -1:
if line.find('expires in') > -1:
expires = line.split('expires in')[1:][0].strip().split(' ')[0]
if expires.isdigit():
expires = int(expires)
else:
expires = -1
else:
expires = -1
address = line.split(')')[0].split('(')[-1]
mac = line.split('at')[-1].split('on')[0].strip()
physical_intf = line.split('on')[-1].strip().split(' ')[0]
if address in self._arp_table:
self._arp_table[address]['intf'].append(physical_intf)
else:
self._arp_table[address] = {'mac': mac, 'intf': [physical_intf]}
self._arp_table[address] = {'mac': mac, 'intf': [physical_intf],'expires' : expires}
def list_items(self):
""" return parsed arp list
@ -75,3 +83,17 @@ class ARP(object):
return self._arp_table[address]
else:
return None
def get_address_by_mac(self, address):
""" search arp entry by mac address, most recent arp entry
:param address: ip address
:return: dict or None (if not found)
"""
result = None
for item in self._arp_table:
if self._arp_table[item]['mac'] == address:
if result is None:
result = item
elif self._arp_table[result]['expires'] < self._arp_table[item]['expires']:
result = item
return result