[dhcpd_new,ldap_crans] Mise à jour dynamique du dhcp à l'édition, la création ou la suppression d'une machine via ldap_crans
Ignore-this: 96d21c9e9d12fc10faff670c8c1b2560 darcs-hash:20130120030947-3a55a-5e038fafa3d29f9e5772f808aa35a817e43b5b4d.gz
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2 changed files with 90 additions and 3 deletions
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@ -6,12 +6,62 @@
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Copyright (C) Frédéric Pauget
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Licence : GPLv2
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"""
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import os
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from iptools import AddrInNet
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from gen_confs import gen_config
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from ldap_crans import hostname
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from config import NETs
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from pypureomapi import pack_ip, pack_mac, OMAPI_OP_UPDATE
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from pypureomapi import Omapi, OmapiMessage, OmapiError, OmapiErrorNotFound
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import struct
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class dydhcp:
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def __init__(self):
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import sys
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sys.path.append('/usr/scripts/gestion/secrets')
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from secrets import dhcp_omapi_keyname,dhcp_omapi_key
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self.dhcp_omapi_keyname=dhcp_omapi_keyname
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self.dhcp_omapi_key=dhcp_omapi_key
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def add_host(self, ip, mac,name=None):
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"""
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@type ip: str
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@type mac: str
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@type name: str
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@raises ValueError:
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@raises OmapiError:
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@raises socket.error:
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"""
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msg = OmapiMessage.open(b"host")
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msg.message.append((b"create", struct.pack("!I", 1)))
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msg.message.append((b"exclusive", struct.pack("!I", 1)))
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msg.obj.append((b"hardware-address", pack_mac(mac)))
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msg.obj.append((b"hardware-type", struct.pack("!I", 1)))
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msg.obj.append((b"ip-address", pack_ip(ip)))
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if name:
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msg.obj.append((b"name", bytes(name)))
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conn=Omapi('dhcp.adm.crans.org',9991,self.dhcp_omapi_keyname, self.dhcp_omapi_key)
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response = conn.query_server(msg)
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conn.close()
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def del_host(self, ip,mac):
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"""
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@type ip: str
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@type mac: str
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@raises ValueError:
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@raises OmapiError:
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@raises socket.error:
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"""
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msg = OmapiMessage.open(b"host")
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msg.obj.append((b"hardware-address", pack_mac(mac)))
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msg.obj.append((b"hardware-type", struct.pack("!I", 1)))
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msg.obj.append((b"ip-address", pack_ip(ip)))
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conn=Omapi('dhcp.adm.crans.org',9991,self.dhcp_omapi_keyname, self.dhcp_omapi_key)
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response = conn.query_server(msg)
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if response.opcode == OMAPI_OP_UPDATE:
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response = conn.query_server(OmapiMessage.delete(response.handle))
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conn.close()
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class dhcp(gen_config) :
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""" Génération du fichier de déclaration des hosts.
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Chaque réseau servi doit être une clef du dictionnaire reseaux,
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@ -38,6 +88,7 @@ class dhcp(gen_config) :
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'10.42.0.0/16' : '/etc/dhcp3/generated/gratuit.liste',
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'10.2.9.0/24' : '/etc/dhcp3/generated/appartements.liste',
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'138.231.144.0/21' : '/etc/dhcp3/generated/wifi.liste' }
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dhcplease='/var/lib/dhcp/dhcpd.leases'
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host_template = """
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@ -67,6 +118,27 @@ class dhcp(gen_config) :
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######################################FIN PARTIE DE CONFIGURATION
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def __str__(self) :
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return 'dhcp'
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def lease_clean(self):
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f=open(self.dhcplease)
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w=open(self.dhcplease+'.new','w')
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config=""
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line=f.readline()
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write=True
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while line:
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if line.strip().startswith('host'):
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write=False
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if write:
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w.write(line)
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if not write and line.strip().endswith('}'):
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write=True
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line=f.readline()
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f.close()
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w.close()
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os.rename(self.dhcplease+'.new',self.dhcplease)
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return
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def _gen(self) :
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"""Construction de la liste des machines appartenant à un réseau
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@ -96,5 +168,9 @@ class dhcp(gen_config) :
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if hosts.has_key(net):
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fd0.write(hosts[net])
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fd0.close()
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try:
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self.lease_clean()
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except:
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print("An error append during cleaning of dhcp lease")
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return warnings
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@ -3184,7 +3184,13 @@ Contactez nounou si la MAC est bien celle d'une carte.""", 3)
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# On vire les doublons dans reconf_ip
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reconf_ip = list(dict(zip(reconf_ip, [None]*len(reconf_ip))))
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# Si la configuration ip à changer on met dynamiquement à jour le dhcp
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if reconf_ip:
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from gen_confs.dhcpd_new import dydhcp
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dhcp=dydhcp()
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dhcp.del_host(self._init_data.get('ipHostNumber',[self.ip()])[0],self._init_data.get('macAddress',[self.mac()])[0])
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dhcp.add_host(self._data.get('ipHostNumber',[self.ip()])[0],self._data.get('macAddress',[self.mac()])[0],self.nom())
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# Enregistrement
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self._save()
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@ -3267,6 +3273,11 @@ Contactez nounou si la MAC est bien celle d'une carte.""", 3)
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self.proprio = self.__proprietaire.Nom() # On met dans un coin le nom du proprio
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self.__proprietaire = None # On oublie le propriétaire
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self._delete(self.dn, comment)
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# On supprime la machine du dhcp
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from gen_confs.dhcpd_new import dydhcp
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dhcp=dydhcp()
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dhcp.del_host(self.ip(),self.mac())
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# Services à redémarrer
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self.services_to_restart('dhcp-dhcp')
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