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https://gitlab2.federez.net/re2o/re2o
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merge
This commit is contained in:
parent
d1a1d6613d
commit
ce862c2853
4 changed files with 189 additions and 110 deletions
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@ -61,10 +61,10 @@ from topologie.models import Port, Switch
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from users.models import User
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class RadiusdHandler(logging.Handler):
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"""Handler de logs pour freeradius"""
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"""Logs handler for freeradius"""
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def emit(self, record):
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"""Process un message de log, en convertissant les niveaux"""
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"""Log message processing, level are converted"""
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if record.levelno >= logging.WARN:
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rad_sig = radiusd.L_ERR
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elif record.levelno >= logging.INFO:
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@ -84,17 +84,15 @@ logger.addHandler(handler)
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def radius_event(fun):
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"""Décorateur pour les fonctions d'interfaces avec radius.
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Une telle fonction prend un uniquement argument, qui est une liste de
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tuples (clé, valeur) et renvoie un triplet dont les composantes sont :
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* le code de retour (voir radiusd.RLM_MODULE_* )
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* un tuple de couples (clé, valeur) pour les valeurs de réponse (accès ok
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et autres trucs du genre)
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* un tuple de couples (clé, valeur) pour les valeurs internes à mettre à
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jour (mot de passe par exemple)
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"""Decorator for freeradius fonction with radius.
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This function take a unique argument which is a list of tuples (key, value)
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and return a tuple of 3 values which are:
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* return code (see radiusd.RLM_MODULE_* )
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* a tuple of 2 elements for response value (access ok , etc)
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* a tuple of 2 elements for internal value to update (password for example)
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On se contente avec ce décorateur (pour l'instant) de convertir la liste de
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tuples en entrée en un dictionnaire."""
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Here, we convert the list of tuples into a dictionnary.
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"""
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def new_f(auth_data):
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""" The function transforming the tuples as dict """
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@ -123,10 +121,23 @@ def radius_event(fun):
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@radius_event
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def instantiate(*_):
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"""Usefull for instantiate ldap connexions otherwise,
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do nothing"""
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"""Instantiate api connection
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"""
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logger.info("Instantiation")
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path = (os.path.dirname(os.path.abspath(__file__)))
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config = ConfigParser()
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config.read(path+'/config.ini')
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api_hostname = config.get('Re2o', 'hostname')
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api_password = config.get('Re2o', 'password')
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api_username = config.get('Re2o', 'username')
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global api_client
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api_client = Re2oAPIClient(
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api_hostname, api_username, api_password, use_tls=True)
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@radius_event
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def authorize(data):
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@ -178,8 +189,9 @@ def post_auth(data):
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logger.info("Proxified request, nas unknown")
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return radiusd.RLM_MODULE_OK
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# If it is a switch
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# If the request is from a switch (wired connection)
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if switch:
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# For logging
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sw_name = switch["name"] or "?"
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room = "Unknown port"
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if port:
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@ -197,7 +209,7 @@ def post_auth(data):
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)
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logger.info(log_message)
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# Wired connexion
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# Apply vlan from decide_vlan_switch
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return (
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radiusd.RLM_MODULE_UPDATED,
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(
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@ -218,6 +230,7 @@ def post_auth(data):
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return (radiusd.RLM_MODULE_REJECT, tuple(attributes), ())
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# Else it is from wifi
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else:
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return radiusd.RLM_MODULE_OK
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@ -225,11 +238,16 @@ def post_auth(data):
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def check_user_machine_and_register(nas_type, user, user_interface, nas_id, username, mac_address):
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"""Check if username and mac are registered. Register it if unknown.
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Return the user ntlm password if everything is ok.
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Used for 802.1X auth"""
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Used for 802.1X auth
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"""
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if not user:
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# No username provided
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return (False, "User unknown", "")
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if not user["access"]:
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return (False, "Invalid connexion (non-contributing user)", "")
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if user_interface:
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if user_interface["user_pk"] != user["pk"]:
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return (
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@ -237,9 +255,12 @@ def check_user_machine_and_register(nas_type, user, user_interface, nas_id, user
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"Mac address registered on another user account",
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"",
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)
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elif not user_interface["active"]:
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return (False, "Interface/Machine disabled", "")
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elif not user_interface["ipv4"]:
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# Try to autoassign ip
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try:
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api_client.view(
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"radius/assign_ip/{0}".format(
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@ -250,7 +271,9 @@ def check_user_machine_and_register(nas_type, user, user_interface, nas_id, user
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return (False, "Error during ip assignement %s" % err.response.text, "")
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else:
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return (True, "Access ok", user.get("pwd_ntlm", ""))
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elif nas_type:
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# The interface is not yet registred, try to autoregister if enabled
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if nas_type["autocapture_mac"]:
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try:
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api_client.view(
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@ -262,7 +285,7 @@ def check_user_machine_and_register(nas_type, user, user_interface, nas_id, user
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return (True, "Access Ok, Registering mac...", user["pwd_ntlm"])
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except HTTPError as err:
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return (False, "Error during mac register %s" % err.response.text, "")
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return (False, "L'auto capture est désactivée", "")
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return (False, "Autoregistering is disabled", "")
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else:
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return (False, "Unknown interface/machine", "")
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else:
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@ -270,6 +293,7 @@ def check_user_machine_and_register(nas_type, user, user_interface, nas_id, user
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def set_radius_attributes_values(attributes, values):
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"""Set values of parameters in radius attributes"""
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return (
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(str(attribute["attribute"]), str(attribute["value"] % values))
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for attribute in attributes
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@ -278,12 +302,14 @@ def set_radius_attributes_values(attributes, values):
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def decide_vlan_switch(data_from_api, user_mac, nas_port):
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"""Function for selecting vlan for a switch with wired mac auth radius.
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Several modes are available :
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Two modes exist : in strict mode, a registered user cannot connect with
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their machines in a non-registered user room
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Sequentially :
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- all modes:
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- unknown NAS : VLAN_OK,
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- unknown port : Decision set in Re2o RadiusOption
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- No radius on this port : VLAN_OK
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- force : returns vlan provided by the database
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- force : replace VLAN_OK with vlan provided by the database
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- mode strict:
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- no room : Decision set in Re2o RadiusOption,
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- no user in this room : Reject,
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@ -299,17 +325,16 @@ def decide_vlan_switch(data_from_api, user_mac, nas_port):
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- user contributing : VLAN_OK (can assign ipv4 if needed)
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- unknown interface :
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- register mac disabled : Decision set in Re2o RadiusOption
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- register mac enabled : redirect to webauth
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- register mac enabled : redirect to webauth (not implemented)
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Returns:
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tuple with :
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- Switch name (str)
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- Room (str)
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- Reason of the decision (str)
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- vlan_id (int)
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- decision (bool)
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- Other Attributs (attribut:str, operator:str, value:str)
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- Other Attributs (attribut:str, value:str)
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"""
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# Get values from api
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nas_type = data_from_api["nas"]
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room_users = data_from_api["room_users"]
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port = data_from_api["port"]
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@ -321,13 +346,14 @@ def decide_vlan_switch(data_from_api, user_mac, nas_port):
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RADIUS_OPTION_REJECT = data_from_api["RADIUS_OPTION_REJECT"]
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USER_STATE_ACTIVE = data_from_api["USER_STATE_ACTIVE"]
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# Values which can be used as parameters in radius attributes
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attributes_kwargs = {
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"client_mac": str(user_mac),
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# magic split
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"switch_port": str(nas_port.split(".")[0].split("/")[-1][-2:]),
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"switch_ip": str(switch["ipv4"])
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}
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# Get port from switch and port number
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extra_log = ""
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# If NAS is unknown, go to default vlan
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if not nas_machine:
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@ -346,8 +372,7 @@ def decide_vlan_switch(data_from_api, user_mac, nas_port):
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attributes_kwargs["switch_ip"] = str(switch.ipv4)
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port = Port.objects.filter(switch=switch, port=port_number).first()
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# If the port is unknwon, go to default vlan
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# We don't have enought information to make a better decision
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# If the port is unknown, do as in RadiusOption
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if not port or not port_profile:
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return (
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"Unknown port",
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@ -395,7 +420,7 @@ def decide_vlan_switch(data_from_api, user_mac, nas_port):
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# Otherwise, we are in mac radius.
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# If strict mode is enabled, we check every user related with this port. If
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# one user or more is not enabled, we reject to prevent from sharing or
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# all users and clubs are disabled, we reject to prevent from sharing or
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# spoofing mac.
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if port_profile["radius_mode"] == "STRICT":
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if not port["room"]:
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@ -443,12 +468,11 @@ def decide_vlan_switch(data_from_api, user_mac, nas_port):
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)
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# else: user OK, so we check MAC now
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# If we are authenticating with mac, we look for the interfaces and its mac address
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if port_profile["radius_mode"] == "COMMON" or port_profile["radius_mode"] == "STRICT":
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# If mac is unknown,
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if not user_interface:
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# We try to register mac, if autocapture is enabled
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# Final decision depend on RADIUSOption set in re2o
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# Something is not implemented here...
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if nas_type["autocapture_mac"]:
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return (
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"Unknown mac/interface",
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@ -105,12 +105,18 @@ class RadiusOptionSerializer(Serializer):
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class AuthorizeResponseSerializer(Serializer):
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"""Serializer for AuthorizeResponse objects
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See views.py for the declaration of AuthorizeResponse
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"""
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nas = NasSerializer(read_only=True)
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user = UserSerializer(read_only=True)
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user_interface = InterfaceSerializer(read_only=True)
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class PostAuthResponseSerializer(Serializer):
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"""Serializer for PostAuthResponse objects
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See views.py for the declaration of PostAuthResponse
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"""
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nas = NasSerializer(read_only=True)
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room_users = UserSerializer(many=True)
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port = PortSerializer()
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@ -28,6 +28,5 @@ urls_functional_view = [
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views.post_auth, None),
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(r"radius/autoregister/(?P<nas_id>[^/]+)/(?P<username>.+)/(?P<mac_address>[0-9a-fA-F\:\-]{17})$",
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views.autoregister_machine, None),
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(r"radius/assign_ip/(?P<mac_address>[0-9a-fA-F\:\-]{17})$",
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views.assign_ip, None),
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(r"radius/assign_ip/(?P<mac_address>[0-9a-fA-F\:\-]{17})$", views.assign_ip, None),
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]
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@ -33,18 +33,23 @@ from topologie.models import Port, Switch
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class AuthorizeResponse:
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"""Contains objects the radius needs for the Authorize step
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"""
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def __init__(self, nas, user, user_interface):
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self.nas = nas
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self.user = user
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self.user_interface = user_interface
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def can_view(self, user):
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"""Temp method to bypass ACL
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"""
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return [True]
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@api_view(['GET'])
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def authorize(request, nas_id, username, mac_address):
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"""Return objects the radius need for the Authorize step
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"""Return objects the radius needs for the Authorize step
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Parameters:
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nas_id (string): NAS name or ipv4
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@ -52,9 +57,10 @@ def authorize(request, nas_id, username, mac_address):
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mac_address (string): mac address of the device which is trying to connect
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Return:
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AuthorizeResponse: contains all the informations
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AuthorizeResponse: contains all required informations
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"""
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# get the Nas object which made the request (if exists)
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nas_interface = Interface.objects.filter(
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Q(domain=Domain.objects.filter(name=nas_id))
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| Q(ipv4=IpList.objects.filter(ipv4=nas_id))
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@ -64,7 +70,11 @@ def authorize(request, nas_id, username, mac_address):
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nas_type = Nas.objects.filter(
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nas_type=nas_interface.machine_type).first()
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# get the User corresponding to the username in the URL
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# If no username was provided (wired connection), username="None"
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user = User.objects.filter(pseudo__iexact=username).first()
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# get the interface which is trying to connect (if already created)
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user_interface = Interface.objects.filter(mac_address=mac_address).first()
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serialized = serializers.AuthorizeResponseSerializer(
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@ -74,6 +84,9 @@ def authorize(request, nas_id, username, mac_address):
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class PostAuthResponse:
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"""Contains objects the radius needs for the Post-Auth step
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"""
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def __init__(self, nas, room_users, port, port_profile, switch, user_interface, radius_option, EMAIL_STATE_UNVERIFIED, RADIUS_OPTION_REJECT, USER_STATE_ACTIVE):
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self.nas = nas
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self.room_users = room_users
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@ -92,7 +105,18 @@ class PostAuthResponse:
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@api_view(['GET'])
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def post_auth(request, nas_id, nas_port, user_mac):
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# get nas_type
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"""Return objects the radius needs for the Post-Auth step
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Parameters:
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nas_id (string): NAS name or ipv4
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nas_port (string): NAS port from wich the request came. Work with Cisco, HP and Juniper convention
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user_mac (string): mac address of the device which is trying to connect
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Return:
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PostAuthResponse: contains all required informations
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"""
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# get the Nas object which made the request (if exists)
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nas_interface = Interface.objects.prefetch_related("machine__switch__stack").filter(
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Q(domain=Domain.objects.filter(name=nas_id))
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| Q(ipv4=IpList.objects.filter(ipv4=nas_id))
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@ -102,14 +126,17 @@ def post_auth(request, nas_id, nas_port, user_mac):
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nas_type = Nas.objects.filter(
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nas_type=nas_interface.machine_type).first()
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# get switch
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# get the switch (if wired connection)
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switch = None
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if nas_interface:
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switch = Switch.objects.filter(
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machine_ptr=nas_interface.machine).first()
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# If the switch is part of a stack, get the correct object
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if hasattr(nas_interface.machine, "switch"):
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stack = nas_interface.machine.switch.stack
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if stack:
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# magic split
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id_stack_member = nas_port.split("-")[1].split("/")[0]
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switch = (
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Switch.objects.filter(stack=stack)
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@ -117,9 +144,10 @@ def post_auth(request, nas_id, nas_port, user_mac):
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.first()
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)
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# get port
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# get the switch port
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port = None
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if nas_port and nas_port != "None":
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# magic split
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port_number = nas_port.split(".")[0].split("/")[-1][-2:]
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port = Port.objects.filter(switch=switch, port=port_number).first()
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@ -127,7 +155,7 @@ def post_auth(request, nas_id, nas_port, user_mac):
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if port:
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port_profile = port.get_port_profile
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# get user_interface
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# get the interface which is trying to connect (if already created)
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user_interface = (
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Interface.objects.filter(mac_address=user_mac)
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.select_related("machine__user")
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@ -135,20 +163,22 @@ def post_auth(request, nas_id, nas_port, user_mac):
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.first()
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)
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# get room users
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# get all users and clubs of the room
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room_users = []
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if port:
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room_users = User.objects.filter(
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Q(club__room=port.room) | Q(adherent__room=port.room)
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)
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# get radius options
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# get all radius options
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radius_option = RadiusOption.objects.first()
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print(radius_option)
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# get a few class constants the radius will need
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EMAIL_STATE_UNVERIFIED = User.EMAIL_STATE_UNVERIFIED
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RADIUS_OPTION_REJECT = RadiusOption.REJECT
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USER_STATE_ACTIVE = User.STATE_ACTIVE
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serialized = serializers.PostAuthResponseSerializer(
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PostAuthResponse(nas_type, room_users, port, port_profile, switch, user_interface, radius_option, EMAIL_STATE_UNVERIFIED, RADIUS_OPTION_REJECT, USER_STATE_ACTIVE))
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@ -157,6 +187,17 @@ def post_auth(request, nas_id, nas_port, user_mac):
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@api_view(['GET'])
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def autoregister_machine(request, nas_id, username, mac_address):
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"""Autoregister machine in the Authorize step of the radius
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Parameters:
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nas_id (string): NAS name or ipv4
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username (string): username of the user who is trying to connect
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mac_address (string): mac address of the device which is trying to connect
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Return:
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200 if autoregistering worked
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400 if it failed, and the reason why
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"""
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nas_interface = Interface.objects.filter(
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Q(domain=Domain.objects.filter(name=nas_id))
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| Q(ipv4=IpList.objects.filter(ipv4=nas_id))
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|
|
@ -170,12 +211,21 @@ def autoregister_machine(request, nas_id, username, mac_address):
|
|||
|
||||
result, reason = user.autoregister_machine(mac_address, nas_type)
|
||||
if result:
|
||||
return Response(data=reason)
|
||||
return Response(reason)
|
||||
return Response(reason, status=400)
|
||||
|
||||
|
||||
@api_view(['GET'])
|
||||
def assign_ip(request, mac_address):
|
||||
"""Autoassign ip in the Authorize and Post-Auth steps of the Radius
|
||||
|
||||
Parameters:
|
||||
mac_address (string): mac address of the device which is trying to connect
|
||||
|
||||
Return:
|
||||
200 if it worked
|
||||
400 if it failed, and the reason why
|
||||
"""
|
||||
interface = (
|
||||
Interface.objects.filter(mac_address=mac_address)
|
||||
.first()
|
||||
|
|
|
|||
Loading…
Reference in a new issue