def main():
module = AnsibleModule(argument_spec=dict(subnet=dict(), ))
subnet = module.params['subnet']
if subnet is not None:
split_addr = subnet.split('/')
if len(split_addr) != 2:
module.fail_json(
"Invalid CIDR notation: expected a subnet mask (e.g. 10.0.0.0/32)"
)
module.exit_json(resolved=to_subnet(split_addr[0], split_addr[1]))
def validate_ip(module, cidr_ip):
split_addr = cidr_ip.split('/')
if len(split_addr) == 2:
# this_ip is a IPv4 or IPv6 CIDR that may or may not have host bits set
# Get the network bits.
try:
ip = to_subnet(split_addr[0], split_addr[1])
except ValueError:
ip = to_ipv6_subnet(split_addr[0]) + "/" + split_addr[1]
if ip != cidr_ip:
module.warn("One of your CIDR addresses ({0}) has host bits set. To get rid of this warning, "
"check the network mask and make sure that only network bits are set: {1}.".format(cidr_ip, ip))
return ip
return cidr_ip
def get_cidr_network_bits(module, cidr_block):
fixed_cidrs = []
for cidr in cidr_block:
split_addr = cidr.split('/')
if len(split_addr) == 2:
# this_ip is a IPv4 CIDR that may or may not have host bits set
# Get the network bits.
valid_cidr = to_subnet(split_addr[0], split_addr[1])
if cidr != valid_cidr:
module.warn("One of your CIDR addresses ({0}) has host bits set. To get rid of this warning, "
"check the network mask and make sure that only network bits are set: {1}.".format(cidr, valid_cidr))
fixed_cidrs.append(valid_cidr)
else:
# let AWS handle invalid CIDRs
fixed_cidrs.append(cidr)
return fixed_cidrs
def test_to_subnet_invalid():
with pytest.raises(ValueError):
to_subnet('foo', 'bar')
def test_to_subnet():
result = to_subnet('192.168.1.1', 24)
assert '192.168.1.0/24' == result
result = to_subnet('192.168.1.1', 24, dotted_notation=True)
assert '192.168.1.0 255.255.255.0' == result
def test_to_subnet_invalid():
with pytest.raises(ValueError):
to_subnet("foo", "bar")
def test_to_subnet():
result = to_subnet("192.168.1.1", 24)
assert "192.168.1.0/24" == result
result = to_subnet("192.168.1.1", 24, dotted_notation=True)
assert "192.168.1.0 255.255.255.0" == result
