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[deconnexion, ipt, surveillance] On compte l'upload ipv6 par adresses mac à partir de la correspondance fournie par la parssage des logs du firewall par mac_ip. On affiche un avertissement si on trouve deux mac avec le même ip sur les 3 derniers jours

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This commit is contained in:
Valentin Samir 2013-02-09 17:45:37 +01:00
parent fee4e88908
commit 15c518cc17
3 changed files with 91 additions and 20 deletions
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13
gestion/gen_confs/surveillance.py
View file

@ -76,15 +76,26 @@ class machines(gen_config) :
curseur = pgsql.cursor()
curseur.execute("DELETE FROM machines;")
ipv6_vu={}
def ipv6_already_set(ipv6):
ret = ipv6_vu.get(ipv6, False)
ipv6_vu[ipv6] = True
return ret
# ajout des entrée
for m in machines:
if m.proprietaire().__class__ == Club:
curseur.execute("INSERT INTO machines (ip, type, id) VALUES (inet'%s','club',%s);"%(m.ip(),m.proprietaire().id()))
if not ipv6_already_set(m.ipv6()):
curseur.execute("INSERT INTO machines (ip, type, id) VALUES (inet'%s','club',%s);"%(m.ipv6(),m.proprietaire().id()))
elif m.proprietaire().__class__ == Adherent:
curseur.execute("INSERT INTO machines (ip, type, id) VALUES (inet'%s','adherent',%s);"%(m.ip(),m.proprietaire().id()))
if not ipv6_already_set(m.ipv6()):
curseur.execute("INSERT INTO machines (ip, type, id) VALUES (inet'%s','adherent',%s);"%(m.ipv6(),m.proprietaire().id()))
elif m.proprietaire().__class__ == AssociationCrans:
curseur.execute("INSERT INTO machines (ip, type, id) VALUES (inet'%s','crans',%s);"%(m.ip(),m.id()))
if not ipv6_already_set(m.ipv6()):
curseur.execute("INSERT INTO machines (ip, type, id) VALUES (inet'%s','crans',%s);"%(m.ipv6(),m.id()))
# on commit
pgsql.commit()

18
gestion/ipt.py
View file

@ -440,9 +440,25 @@ def check_ip_proto(ip_proto):
def ipv6_addr(mac, net):
''' Renvoie l'adresse ipv6 d'auto-configuration de la mac sur le réseau '''
mac_s = mac.split(':')
eui = '2'+':'.join(mac_s[1:3])+'ff:fe'+':'.join(mac_s[3:5])+mac_s[5]
eui = hex(int(mac_s[0],16) ^ 0x02)[2:] + ':'.join(mac_s[1:3]) + 'ff:fe' + ':'.join(mac_s[3:5]) + mac_s[5]
return re.sub(':/64', eui , prefix[dprefix[net]][0])
def mac_addr(ipv6):
''' Renvoie l'adresse mac de l'ipv6 d'auto-configuration '''
ipv6_s= ipv6.split(':')[4:]
mac=''
if ipv6_s[1].endswith('ff') and ipv6_s[2].startswith('fe'):
elt = "%04x" % int(ipv6_s[0], 16)
mac += "%02x" % (int(elt[0:2],16) ^ 0x02) + ':' + elt[2:]
elt = "%04x" % int(ipv6_s[1], 16)
mac += ':' + elt[0:2]
elt = "%04x" % int(ipv6_s[2], 16)
mac += ':' + elt[2:]
elt = "%04x" % int(ipv6_s[3], 16)
mac += ':' + elt[0:2] + ':' + elt[2:]
return mac
return None
# TODO Fusionner les deux fonctions.
def iface(net):
'''Retourne l'interface réseau associée à un certain type de réseau

80
surveillance/deconnexion.py
View file

@ -21,6 +21,7 @@ import sys
import psycopg2
sys.path.append('/usr/scripts/gestion')
from config import upload, virus, p2p, NETs
import ipt
import smtplib
from ldap_crans import crans_ldap
from ldap_crans import MachineWifi
@ -95,27 +96,59 @@ def reperage_chambre(mac):
################################################################################
# upload par entité (adhérent/club/machine crans)
upload4="""SELECT
'upload', sum(upload)/1024/1024 AS total, ip_crans
FROM
upload
WHERE
upload > download
AND date > timestamp 'now' - interval '1 day'
AND date < 'now'
AND NOT EXISTS
(
SELECT 1
FROM exemptes
WHERE upload.ip_crans <<= exemptes.ip_crans
AND upload.ip_ext <<= exemptes.ip_dest
)
GROUP BY
ip_crans
"""
upload6 = """SELECT
'upload', sum(upload)/1024/1024 AS total, ip_crans
FROM
(
SELECT DISTINCT * FROM
(
SELECT
upload6.date, mac_ip.ip AS ip_crans, upload6.ip_ext, upload6.id, upload6.port_crans, upload6.port_ext, upload6.download, upload6.upload
FROM mac_ip,upload6
WHERE
upload6.ip_crans = mac_ip.ip
AND upload6.date > mac_ip.date
AND upload6.date - interval '1 day' < mac_ip.date
AND upload6.date > timestamp 'now' - interval '1 day'
AND upload6.date < 'now'
AND upload6.upload > upload6.download
AND NOT EXISTS
(
SELECT 1
FROM exemptes
WHERE upload6.ip_crans <<= exemptes.ip_crans
AND upload6.ip_ext <<= exemptes.ip_dest
)
) AS upload
) AS upload
WHERE
upload > download
GROUP BY
ip_crans
"""
requete = """SELECT
round(total) AS total, machines.type AS type, machines.id AS id
FROM
(
SELECT
'upload', sum(upload)/1024/1024 AS total, ip_crans
FROM
upload
WHERE
upload > download
AND date > timestamp 'now' - interval '1 day'
AND date < 'now'
AND NOT EXISTS
(
SELECT 1
FROM exemptes
WHERE upload.ip_crans <<= exemptes.ip_crans
AND upload.ip_ext <<= exemptes.ip_dest
)
GROUP BY
ip_crans
(%s) UNION (%s)
)
AS
upload
@ -127,10 +160,21 @@ WHERE
total >= 250
GROUP BY
total, type, id
;"""
;""" % (upload4, upload6)
curseur.execute(requete)
uploadeurs = curseur.fetchall()
# On regarde s'il y a deux ipv6 identiques avec des mac non identiques
collision_mac_ip_request = "SELECT DISTINCT (a.*) FROM mac_ip as a, mac_ip as b where a.ip=b.ip AND a.mac != b.mac AND a.date >= b.date AND a.date - b.date < interval '3 day' ORDER BY a.date;"
curseur.execute(collision_mac_ip_request)
collision_mac_ip = curseur.fetchall()
if collision_mac_ip != []:
print "Collision d'addresses ipv6 : "
for (date, mac, ip) in collision_mac_ip:
print "%s %s %s" % (date, ipt.mac_addr(mac), ip)
# Table des avertis
###################