Commit 853be5e1 authored by Gabriel Detraz's avatar Gabriel Detraz

Generation de l'iptables dans le models

parent 9fab8914
......@@ -30,7 +30,7 @@ from django.utils.functional import cached_property
from macaddress.fields import MACAddressField
from portail_captif.settings import GENERIC_IPSET_COMMAND, IPSET_NAME, REQ_EXPIRE_HRS
from portail_captif.settings import GENERIC_IPSET_COMMAND, IPSET_NAME, REQ_EXPIRE_HRS,FORBIDEN_INTERFACES, SERVER_SELF_IP, AUTORIZED_INTERFACES
import re, uuid
import datetime
......@@ -67,6 +67,76 @@ def fill_ipset():
apply(command_to_execute)
return
class iptables:
def __init__(self):
self.nat = "\n*nat"
self.mangle = "\n*mangle"
self.filter = "\n*filter"
def commit(self, chain):
self.add(chain, "COMMIT\n")
def add(self, chain, value):
setattr(self, chain, getattr(self, chain) + "\n" + value)
def init_filter(self, subchain, decision="ACCEPT"):
self.add("filter", ":" + subchain + " " + decision)
def init_nat(self, subchain, decision="ACCEPT"):
self.add("nat", ":" + subchain + " " + decision)
def init_mangle(self, subchain, decision="ACCEPT"):
self.add("mangle", ":" + subchain + " " + decision)
def jump(self, chain, subchainA, subchainB):
self.add(chain, "-A " + subchainA + " -j " + subchainB)
def gen_filter(ipt):
ipt.init_filter("INPUT")
ipt.init_filter("FORWARD")
ipt.init_filter("OUTPUT")
for interface in FORBIDEN_INTERFACES:
ipt.add("filter", "-A FORWARD -o %s -j REJECT --reject-with icmp-port-unreachable" % interface)
ipt.commit("filter")
return ipt
def gen_nat(ipt):
ipt.init_nat("PREROUTING")
ipt.init_nat("INPUT")
ipt.init_nat("OUTPUT")
ipt.init_nat("POSTROUTING")
ipt.init_nat("CAPTIF", decision="-")
ipt.jump("nat", "PREROUTING", "CAPTIF")
ipt.jump("nat", "POSTROUTING", "MASQUERADE")
ipt.add("nat", "-A CAPTIF -m set ! --match-set %s src -j DNAT --to-destination %s" % (IPSET_NAME, SERVER_SELF_IP))
ipt.jump("nat", "CAPTIF", "RETURN")
ipt.commit("nat")
return ipt
def gen_mangle(ipt):
ipt.init_mangle("PREROUTING")
ipt.init_mangle("INPUT")
ipt.init_mangle("FORWARD")
ipt.init_mangle("OUTPUT")
ipt.init_mangle("POSTROUTING")
for interface in AUTORIZED_INTERFACES:
ipt.add("mangle", """-A PREROUTING -i %s -m state --state NEW -j LOG --log-prefix "LOG_ALL " """ % interface)
ipt.commit("mangle")
return ipt
def restore_iptables():
""" Restrore l'iptables pour la création du portail. Est appellé par root au démarage du serveur"""
ipt = iptables()
gen_mangle(ipt)
gen_nat(ipt)
gen_filter(ipt)
global_chain = ipt.nat + ipt.filter + ipt.mangle
file = open("/tmp/iptables_restore", 'w+')
file.write(global_chain)
file.close()
apply("iptables-restore < /tmp/iptables_restore")
return
class UserManager(BaseUserManager):
def _create_user(self, pseudo, name, surname, email, password=None, su=False):
if not pseudo:
......@@ -156,7 +226,7 @@ class User(AbstractBaseUser):
def get_short_name(self):
return self.name
def has_perm(self, perm, obj=None):
return True
......
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