def opt_reverse(self, net_file):
"""Write out reverse zone, in the form ADDRESS/NETMASK:FILE"""
if ":" not in net_file:
raise usage.UsageError("--reverse= value must contain semicolon")
addr_nm, filename = net_file.split(":", 1)
if "/" not in addr_nm:
raise usage.UsageError("--reverse= value must have netmask")
addressString, netmaskString = addr_nm.split("/", 1)
try:
address = dns.aton(addressString)
except OSError as e:
raise usage.UsageError("--reverse= address is invalid: %s" % e)
try:
netmask = dns.aton(netmaskString)
except OSError as e:
raise usage.UsageError("--reverse= netmask is invalid: %s" % e)
self.opts.setdefault("reverse", []).append({
"address": address,
"netmask": netmask,
"filename": filename,
})
def isInNet(self, ipAddress):
net = dns.aton(self.address)
mask = dns.aton(self.mask)
ip = dns.aton(ipAddress)
if ip & mask == net:
return 1
return 0
def getReverse(self, domain):
ip = dns.aton(self.address)
mask = dns.aton(self.mask)
broadcast = dns.ntoa(ip | ~mask)
return (("; %s\n" % self.dn) +
formatPTR(self.name + "." + domain, self.address) +
formatPTR("broadcast." + self.name + "." + domain, broadcast))
def getForward(self):
ip = dns.aton(self.address)
mask = dns.aton(self.mask)
ipmask = dns.ntoa(mask)
broadcast = dns.ntoa(ip | ~mask)
return (("; %s\n" % self.dn) +
formatIPAddress(self.name, self.address) +
formatIPAddress("netmask." + self.name, ipmask) +
formatIPAddress("broadcast." + self.name, broadcast))
def printZone(self):
print("#" + self.dn)
printIPAddress(self.name, self.address)
printPTR(self.name, self.address)
ip = dns.aton(self.address)
mask = dns.aton(self.mask)
ipmask = dns.ntoa(mask)
broadcast = dns.ntoa(ip | ~mask)
printIPAddress("netmask." + self.name, ipmask)
printIPAddress("broadcast." + self.name, broadcast)
printPTR("broadcast." + self.name, broadcast)
def isInNet(self, ipAddress):
try:
net = dns.aton(self.address)
mask = dns.aton(self.mask)
ip = dns.aton(ipAddress)
except OSError:
# no need to log here, higher levels will log a warning
# when they see the address is in no net
return False
if ip & mask == net:
return True
return False
def _cbGotNets(nets, forward, reverse):
r = []
for e in nets:
net = Net(
str(e.dn),
str(only(e, "cn")),
str(only(e, "ipNetworkNumber")),
str(only(e, "ipNetmaskNumber")),
)
print(net.getForward(), file=forward)
for data in reverse:
ip = dns.aton(net.address)
if ip & data["netmask"] == data["address"]:
if "file" not in data:
data["tempname"] = "%s.%d.tmp" % (data["filename"], os.getpid())
data["file"] = open(data["tempname"], "w")
print(net.getReverse(domain), file=data["file"])
net.reverseZone = data
r.append(net)
return r
def test_CIDR(self):
for i in range(0, 33):
mask = dns.ntoa(dns.aton(i))
self.assertEquals(dns.netmaskToNumbits(mask), i)
def test_CIDR(self):
for i in range(0, 33):
mask = dns.ntoa(dns.aton(i))
self.assertEqual(dns.netmaskToNumbits(mask), i)