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A prog2-höz tartozó friss repo anyagok itt elérhetőek: https://git.iit.bme.hu/

Commit e26c3c37 by Őry Máté
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firewall: random hotfixes by bd

parent 245a69f8
Showing with 19 additions and 3 deletions
firewall/fw.py
...@@ -139,7 +139,7 @@ class Firewall: ...@@ -139,7 +139,7 @@ class Firewall:
self.iptables('-N PUB_OUT') self.iptables('-N PUB_OUT')
self.iptables('-A FORWARD -m set --match-set blacklist src,dst -j DROP') self.iptables('-A FORWARD -m set --match-set blacklist src,dst -j DROP')
self.iptables('-A FORWARD -m state --state INVALID -g LOG_DROP') # self.iptables('-A FORWARD -m state --state INVALID -g LOG_DROP')
self.iptables('-A FORWARD -m state --state ESTABLISHED,RELATED ' self.iptables('-A FORWARD -m state --state ESTABLISHED,RELATED '
'-j ACCEPT') '-j ACCEPT')
self.iptables('-A FORWARD -p icmp --icmp-type echo-request ' self.iptables('-A FORWARD -p icmp --icmp-type echo-request '
...@@ -181,6 +181,8 @@ class Firewall: ...@@ -181,6 +181,8 @@ class Firewall:
self.iptablesnat(':INPUT ACCEPT [0:0]') self.iptablesnat(':INPUT ACCEPT [0:0]')
self.iptablesnat(':OUTPUT ACCEPT [1:708]') self.iptablesnat(':OUTPUT ACCEPT [1:708]')
self.iptablesnat(':POSTROUTING ACCEPT [1:708]') self.iptablesnat(':POSTROUTING ACCEPT [1:708]')
self.iptablesnat('-A POSTROUTING -o pub -s 10.12.2.128/25 -j SNAT '
'--to-source 152.66.243.130')
# portforward # portforward
for host in self.hosts.exclude(pub_ipv4=None): for host in self.hosts.exclude(pub_ipv4=None):
...@@ -212,10 +214,16 @@ class Firewall: ...@@ -212,10 +214,16 @@ class Firewall:
# hard-wired rules # hard-wired rules
self.iptablesnat('-A POSTROUTING -s 10.5.0.0/16 -o vlan0003 -j SNAT ' self.iptablesnat('-A POSTROUTING -s 10.5.0.0/16 -o vlan0003 -j SNAT '
'--to-source 10.3.255.254') # man elerheto legyen '--to-source 10.3.255.254') # man elerheto legyen
self.iptablesnat('-A POSTROUTING -o vlan0008 -j SNAT ' # self.iptablesnat('-A POSTROUTING -o vlan0008 -j SNAT '
'--to-source 10.0.0.247') # wolf network for printing # '--to-source 10.0.0.247') # wolf network for printing
self.iptablesnat('-A POSTROUTING -s 10.3.0.0/16 -p udp --dport 53 -o vlan0002 -j SNAT ' self.iptablesnat('-A POSTROUTING -s 10.3.0.0/16 -p udp --dport 53 -o vlan0002 -j SNAT '
'--to-source %s' % self.pub.ipv4) # kulonben nem megy a dns man-ban '--to-source %s' % self.pub.ipv4) # kulonben nem megy a dns man-ban
self.iptablesnat('-A PREROUTING -d 192.168.243.1/32 -j DNAT --to-destination 152.66.243.1')
self.iptablesnat('-A PREROUTING -d 152.66.243.4/32 -j DNAT --to-destination 152.66.243.102')
self.iptablesnat('-A PREROUTING -d 152.66.243.1/32 -p tcp --dport smtp -j DNAT --to-destination 152.66.243.102')
self.iptablesnat('-A PREROUTING -d 152.66.243.1/32 -p tcp --dport smtps -j DNAT --to-destination 152.66.243.102')
self.iptablesnat('-A PREROUTING -d 152.66.243.130/32 -p udp --dport 1194 -j DNAT --to-destination 10.12.255.253')
self.iptablesnat('COMMIT') self.iptablesnat('COMMIT')
...@@ -346,6 +354,8 @@ def ipv6_to_arpa(ipv6): ...@@ -346,6 +354,8 @@ def ipv6_to_arpa(ipv6):
octets.insert(0, int(part[3], 16)) octets.insert(0, int(part[3], 16))
return '.'.join(['%1x' % x for x in octets]) + '.ip6.arpa' return '.'.join(['%1x' % x for x in octets]) + '.ip6.arpa'
def txt_to_octal(txt):
return '\\' + '\\'.join(['%03o' % ord(x) for x in txt])
# =fqdn:ip:ttl A, PTR # =fqdn:ip:ttl A, PTR
# &fqdn:ip:x:ttl NS # &fqdn:ip:x:ttl NS
...@@ -354,6 +364,7 @@ def ipv6_to_arpa(ipv6): ...@@ -354,6 +364,7 @@ def ipv6_to_arpa(ipv6):
# ^ PTR # ^ PTR
# C CNAME # C CNAME
# : generic # : generic
# 'fqdn:s:ttl TXT
def dns(): def dns():
vlans = models.Vlan.objects.all() vlans = models.Vlan.objects.all()
...@@ -405,6 +416,8 @@ def dns(): ...@@ -405,6 +416,8 @@ def dns():
'ttl': d['ttl']}) 'ttl': d['ttl']})
elif d['type'] == 'PTR': elif d['type'] == 'PTR':
DNS.append("^%s:%s:%s" % (d['name'], d['address'], d['ttl'])) DNS.append("^%s:%s:%s" % (d['name'], d['address'], d['ttl']))
elif d['type'] == 'TXT':
DNS.append("'%s:%s:%s" % (d['name'], txt_to_octal(d['description']), d['ttl']))
return DNS return DNS
process = subprocess.Popen(['/usr/bin/ssh', 'tinydns@%s' % process = subprocess.Popen(['/usr/bin/ssh', 'tinydns@%s' %
......
firewall/models.py
...@@ -393,6 +393,7 @@ class Record(models.Model): ...@@ -393,6 +393,7 @@ class Record(models.Model):
return {'name': name, return {'name': name,
'type': self.type, 'type': self.type,
'ttl': self.ttl, 'ttl': self.ttl,
'description': self.description,
'address': address} 'address': address}
class Blacklist(models.Model): class Blacklist(models.Model):
......
firewall/tasks.py
...@@ -34,6 +34,7 @@ class Periodic(PeriodicTask): ...@@ -34,6 +34,7 @@ class Periodic(PeriodicTask):
if cache.get('dhcp_lock'): if cache.get('dhcp_lock'):
cache.delete("dhcp_lock") cache.delete("dhcp_lock")
reload_dhcp_task.delay(dhcp()) reload_dhcp_task.delay(dhcp())
reload_dhcp_task.apply_async((dhcp(), ), queue='dhcp2')
print "dhcp ujratoltese kesz" print "dhcp ujratoltese kesz"
if cache.get('firewall_lock'): if cache.get('firewall_lock'):
...@@ -41,6 +42,7 @@ class Periodic(PeriodicTask): ...@@ -41,6 +42,7 @@ class Periodic(PeriodicTask):
ipv4 = Firewall().get() ipv4 = Firewall().get()
ipv6 = Firewall(True).get() ipv6 = Firewall(True).get()
reload_firewall_task.delay(ipv4, ipv6) reload_firewall_task.delay(ipv4, ipv6)
reload_firewall_task.apply_async((ipv4, ipv6), queue='firewall2')
print "firewall ujratoltese kesz" print "firewall ujratoltese kesz"
if cache.get('blacklist_lock'): if cache.get('blacklist_lock'):
......
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