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Gestion de l'authentification wifi dans auth.py et enregistrement des macs
This commit is contained in:
Gabriel Detraz
root
parent
fce9f1b746
commit
b16e756a3c
1 changed files with 91 additions and 76 deletions
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@ -141,89 +141,65 @@ def instantiate(*_):
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@radius_event
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def authorize(data):
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"""Fonction qui aiguille entre nas, wifi et filaire pour authorize
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On se contecte de faire une verification basique de ce que contien la requète
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pour déterminer la fonction à utiliser"""
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return authorize_fil(data)
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user = data.get('User-Name', None)
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# Pour les requetes proxifiees, on split
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nas_type = data.get('NAS-Port-Type', None)
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if nas_type == "Wireless-802.11":
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user = user.split('@', 1)[0]
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mac = data.get('Calling-Station-Id', None)
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nas = data.get('NAS-IP-Address', data.get('NAS-Identifier', None))
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result, log, password = check_user_machine_and_register(nas, user, mac)
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if not result:
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return radiusd.RLM_MODULE_REJECT
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else:
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return (radiusd.RLM_MODULE_UPDATED,
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(),
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(
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(str("NT-Password"), str(password)),
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),
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)
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@radius_event
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def authorize_fil(data):
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"""
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Check le challenge chap, et accepte.
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"""
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return (radiusd.RLM_MODULE_UPDATED,
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else:
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return (radiusd.RLM_MODULE_UPDATED,
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(),
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(
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("Auth-Type", "Accept"),
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),
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)
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)
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@radius_event
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def post_auth(data):
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# On cherche quel est le type de machine, et quel sites lui appliquer
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if data.get('NAS-Port-Type', '')==u'Ethernet':
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return post_auth_fil(data)
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elif u"Wireless" in data.get('NAS-Port-Type', ''):
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return post_auth_wifi(data)
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port = data.get('NAS-Port-Id', data.get('NAS-Port', None))
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nas = data.get('NAS-IP-Address', data.get('NAS-Identifier', None))
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@radius_event
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def post_auth_wifi(data):
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"""Appelé une fois que l'authentification est ok.
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On peut rajouter quelques éléments dans la réponse radius ici.
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Comme par exemple le vlan sur lequel placer le client"""
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port, vlan_name, reason = decide_vlan(data, True)
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nas_instance = find_nas_from_request(nas).first()
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mac = data.get('Calling-Station-Id', None)
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# Si il s'agit d'un switch
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if hasattr(nas_instance, 'switch'):
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# Hack, à cause d'une numérotation cisco baroque
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port = port.split(".")[0].split('/')[-1][-2:]
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out = decide_vlan_and_register_switch(nas_instance, port, mac)
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sw_name, reason, vlan_id = out
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log_message = '(wifi) %s -> %s [%s%s]' % \
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(port, mac, vlan_name, (reason and u': ' + reason).encode('utf-8'))
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logger.info(log_message)
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log_message = '(fil) %s -> %s [%s%s]' % \
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(sw_name + u":" + port, mac, vlan_id, (reason and u': ' + reason).encode('utf-8'))
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logger.info(log_message)
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# Si NAS ayant des mapping particuliers, à signaler ici
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vlan_id = config.vlans[vlan_name]
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# WiFi : Pour l'instant, on ne met pas d'infos de vlans dans la réponse
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# les bornes wifi ont du mal avec cela
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if WIFI_DYN_VLAN:
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# Filaire
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return (radiusd.RLM_MODULE_UPDATED,
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(
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("Tunnel-Type", "VLAN"),
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("Tunnel-Medium-Type", "IEEE-802"),
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("Tunnel-Private-Group-Id", '%d' % vlan_id),
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("Tunnel-Private-Group-Id", '%d' % int(vlan_id)),
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),
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()
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)
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)
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return radiusd.RLM_MODULE_OK
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@radius_event
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def post_auth_fil(data):
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"""Idem, mais en filaire.
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"""
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nas = data.get('NAS-IP-Address', data.get('NAS-Identifier', None))
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port = data.get('NAS-Port-Id', data.get('NAS-Port', None))
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mac = data.get('Calling-Station-Id', None)
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# Hack, à cause d'une numérotation cisco baroque
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port = port.split(".")[0].split('/')[-1][-2:]
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out = decide_vlan_and_register_macauth(nas, port, mac)
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sw_name, reason, vlan_id = out
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log_message = '(fil) %s -> %s [%s%s]' % \
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(sw_name + u":" + port, mac, vlan_id, (reason and u': ' + reason).encode('utf-8'))
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logger.info(log_message)
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# Filaire
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return (radiusd.RLM_MODULE_UPDATED,
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(
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("Tunnel-Type", "VLAN"),
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("Tunnel-Medium-Type", "IEEE-802"),
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("Tunnel-Private-Group-Id", '%d' % int(vlan_id)),
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),
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()
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)
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# Il s'agit d'une borne WiFi
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else:
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return radiusd.RLM_MODULE_OK
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@radius_event
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def dummy_fun(_):
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@ -235,21 +211,58 @@ def detach(_=None):
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print "*** goodbye from auth.py ***"
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return radiusd.RLM_MODULE_OK
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def decide_vlan_and_register_macauth(switch_id, port_number, mac_address):
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# Get port from switch and port number
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if not isinstance(switch_id, int):
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switch = Switch.objects.filter(switch_interface=Interface.objects.filter(domain=Domain.objects.filter(name=switch_id)))
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def find_nas_from_request(nas_id):
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if not isinstance(nas_id, int):
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nas = Interface.objects.filter(domain=Domain.objects.filter(name=nas_id))
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else:
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switch = Switch.objects.filter(switch_interface=Interface.objects.filter(ipv4=switch_id))
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if not switch:
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return ('?', 'Switch inconnu', VLAN_OK)
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nas = Interface.objects.filter(ipv4=nas_id)
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return nas
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ipv4 = switch.first().switch_interface.ipv4
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def check_user_machine_and_register(nas_id, username, mac_address):
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""" Verifie le username et la mac renseignee. L'enregistre si elle est inconnue.
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Renvoie le mot de passe ntlm de l'user si tout est ok
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Utilise pour les authentifications en 802.1X"""
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#nas = find_nas_from_request(nas_id).first()
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#if not nas:
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# return (False, 'Nas inconnu %s ' % nas_id, '')
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sw_name = str(switch.first().switch_interface)
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#ipv4 = nas.ipv4
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interface = Interface.objects.filter(mac_address=mac_address).first()
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user = User.objects.filter(pseudo=username).first()
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if not user:
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return (False, "User inconnu", '')
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if not user.has_access:
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return (False, "Adherent non cotisant", '')
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if interface:
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if interface.machine.user != user:
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return (False, u"Machine enregistrée sur le compte d'un autre user...", '')
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elif not interface.is_active:
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return (False, u"Machine desactivée", '')
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else:
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return (True, "Access ok", user.pwd_ntlm)
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elif MAC_AUTOCAPTURE:
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result, reason = user.autoregister_machine(mac_address, ipv4.first())
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if result:
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return (True, 'Access Ok, Capture de la mac...', user.pwd_ntlm)
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else:
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return (False, u'Erreur dans le register mac %s' % reason, '')
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else:
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return (False, "Machine inconnue", '')
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port = Port.objects.filter(switch=switch.first(), port=port_number)
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def decide_vlan_and_register_switch(nas, port_number, mac_address):
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# Get port from switch and port number
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if not nas:
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return ('?', 'Nas inconnu', VLAN_OK)
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ipv4 = nas.ipv4
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sw_name = str(nas)
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port = Port.objects.filter(switch=Switch.objects.filter(switch_interface=nas), port=port_number)
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if not port:
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return (sw_name, 'Port inconnu', VLAN_OK)
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@ -288,7 +301,7 @@ def decide_vlan_and_register_macauth(switch_id, port_number, mac_address):
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elif not room_user.first().has_access():
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return (sw_name, 'Machine inconnue et adhérent non cotisant', VLAN_NOK)
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else:
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result, reason = room_user.first().autoregister_machine(mac_address, ipv4.first())
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result, reason = room_user.first().autoregister_machine(mac_address, ipv4)
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if result:
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return (sw_name, 'Access Ok, Capture de la mac...', VLAN_OK)
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else:
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@ -301,3 +314,5 @@ def decide_vlan_and_register_macauth(switch_id, port_number, mac_address):
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# On gere bien tous les autres états possibles, il ne reste que le VLAN en dur
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return (sw_name, 'VLAN impose', int(port.radius))
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