Dhcp.leases kontrollimise skript - Revision history

Sliivand at 21:10, 30 January 2011

2011-01-30T21:10:05Z

← Older revision		Revision as of 00:10, 31 January 2011
Line 16:		Line 16:
	lease = None		lease = None
	outdated = False		outdated = False
			timestamp = time.time()
	for line in lines:		for line in lines:
	if not line or line.startswith("#"):		if not line or line.startswith("#"):
Line 30:		Line 31:
	lease["status"] = "Up"		lease["status"] = "Up"
	# print lease		# print lease
	print 'IP: %s, ~~MAC~~: %s, ~~State~~: %s' % (lease["ip"], lease["mac"], lease["status"])		print 'IP: %s,\tMAC: %s,\tState: %s' % (lease["ip"], lease["mac"], lease["status"])
	lease = None		lease = None
	outdated = False		outdated = False
Line 47:		Line 48:
	lease["mac"] = value.lower()		lease["mac"] = value.lower()
	elif key == "ends":		elif key == "ends":
	~~endtime =~~ time.mktime(time.strptime(value, "%w %Y/%m/%d %H:%M:%S"))		if time.mktime(time.strptime(value, "%w %Y/%m/%d %H:%M:%S")) < timestamp:
	~~if endtime~~ < ~~time.time()~~:
	outdated = True		outdated = True
	</source>		</source>

Sliivand at 21:03, 30 January 2011

2011-01-30T21:03:41Z

← Older revision		Revision as of 00:03, 31 January 2011
Line 48:		Line 48:
	elif key == "ends":		elif key == "ends":
	endtime = time.mktime(time.strptime(value, "%w %Y/%m/%d %H:%M:%S"))		endtime = time.mktime(time.strptime(value, "%w %Y/%m/%d %H:%M:%S"))
	~~# lease["end"] = value.lower()~~
	if endtime < time.time():		if endtime < time.time():
	outdated = True		outdated = True
	</source>		</source>

Sliivand at 21:00, 30 January 2011

2011-01-30T21:00:21Z

← Older revision		Revision as of 00:00, 31 January 2011
Line 1:		Line 1:
	Skript, mis analüüsib DHCP serveri ''leases'' faili, leiab sealt kehtivad ''lease'''id ning ''ping''ib neid aadresse tegemaks kindlaks, kas masin on üleval või mitte (eeldusel, et masin üldse ''ping''ile tahab vastata).		Skript, mis analüüsib DHCP serveri ''leases'' faili, leiab sealt kehtivad ''lease'''id ning ''ping''ib neid aadresse tegemaks kindlaks, kas masin on üleval või mitte (eeldusel, et masin üldse ''ping''ile tahab vastata).

			Siim Liivand, AK41

	<source lang="python">		<source lang="python">

Sliivand at 20:46, 30 January 2011

2011-01-30T20:46:41Z

← Older revision		Revision as of 23:46, 30 January 2011
Line 36:		Line 36:
	assert not lease, "Parse error: '%s'" % line		assert not lease, "Parse error: '%s'" % line
	lease = {}		lease = {}
	~~# lease["ip"] = m.groups()~~
	lease["ip"] = re.findall("[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}", str(m.groups()))[0]		lease["ip"] = re.findall("[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}", str(m.groups()))[0]
	continue		continue

Sliivand at 20:46, 30 January 2011

2011-01-30T20:46:02Z

← Older revision		Revision as of 23:46, 30 January 2011
Line 27:		Line 27:
	if re.search(r",\s[1-4]\sreceived,", ping.stdout.read()):		if re.search(r",\s[1-4]\sreceived,", ping.stdout.read()):
	lease["status"] = "Up"		lease["status"] = "Up"
	print lease		# print lease
			print 'IP: %s, MAC: %s, State: %s' % (lease["ip"], lease["mac"], lease["status"])
	lease = None		lease = None
	outdated = False		outdated = False
Line 35:		Line 36:
	assert not lease, "Parse error: '%s'" % line		assert not lease, "Parse error: '%s'" % line
	lease = {}		lease = {}
	lease["ip"] = m.groups()		# lease["ip"] = m.groups()
			lease["ip"] = re.findall("[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}", str(m.groups()))[0]
	continue		continue
	assert isinstance(lease, dict), "Parse error: '%s'" % line		assert isinstance(lease, dict), "Parse error: '%s'" % line

Sliivand: Created page with 'Skript, mis analüüsib DHCP serveri ''leases'' faili, leiab sealt kehtivad ''lease'''id ning ''ping''ib neid aadresse tegemaks kindlaks, kas masin on üleval või mitte (eelduse…'

2011-01-30T20:14:17Z

Created page with 'Skript, mis analüüsib DHCP serveri ''leases'' faili, leiab sealt kehtivad ''lease'''id ning ''ping''ib neid aadresse tegemaks kindlaks, kas masin on üleval või mitte (eelduse…'

New page

Skript, mis analüüsib DHCP serveri ''leases'' faili, leiab sealt kehtivad ''lease'''id ning ''ping''ib neid aadresse tegemaks kindlaks, kas masin on üleval või mitte (eeldusel, et masin üldse ''ping''ile tahab vastata).

<source lang="python">
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Siim Liivand, AK41

import re, time
from subprocess import Popen, PIPE

fh = open("dhcpd.leases")
lines = fh.read().split("\n")
fh.close()
lease = None
outdated = False
for line in lines:
if not line or line.startswith("#"):
continue
if line == "}" and lease:
if not outdated:
ping = Popen(
["ping", "-n", "-c", "4", str(lease["ip"])],
stdout = PIPE,
stderr = PIPE
)
lease["status"] = "Down"
if re.search(r",\s[1-4]\sreceived,", ping.stdout.read()):
lease["status"] = "Up"
print lease
lease = None
outdated = False
continue
m = re.match("lease\s+([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})", line)
if m:
assert not lease, "Parse error: '%s'" % line
lease = {}
lease["ip"] = m.groups()
continue
assert isinstance(lease, dict), "Parse error: '%s'" % line
m = re.match(r"\s+([a-z\s\-]+)\s+\"?(.+?)?\"?\;", line);
if m:
key, value = m.groups()
if key == "hardware ethernet":
lease["mac"] = value.lower()
elif key == "ends":
endtime = time.mktime(time.strptime(value, "%w %Y/%m/%d %H:%M:%S"))
# lease["end"] = value.lower()
if endtime < time.time():
outdated = True
</source>