To ipv6 network (#48572)
* Add to_ipv6_subnet function * Use the correct function for subnet * Corrected code style and tests * Corrected testcase assertion 64 bits make 8 octets, or 4 hextets * Import from correct module directly
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4 changed files with 43 additions and 5 deletions
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@ -79,6 +79,36 @@ def to_subnet(addr, mask, dotted_notation=False):
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return '%s/%s' % ('.'.join(network), cidr)
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def to_ipv6_subnet(addr):
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""" IPv6 addresses are eight groupings. The first four groupings (64 bits) comprise the subnet address. """
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# https://tools.ietf.org/rfc/rfc2374.txt
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# Split by :: to identify omitted zeros
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ipv6_prefix = addr.split('::')[0]
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# Get the first four groups, or as many as are found + ::
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found_groups = []
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for group in ipv6_prefix.split(':'):
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found_groups.append(group)
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if len(found_groups) == 4:
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break
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if len(found_groups) < 4:
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found_groups.append('::')
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# Concatenate network address parts
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network_addr = ''
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for group in found_groups:
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if group != '::':
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network_addr += str(group)
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network_addr += str(':')
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# Ensure network address ends with ::
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if not network_addr.endswith('::'):
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network_addr += str(':')
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return network_addr
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def to_ipv6_network(addr):
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""" IPv6 addresses are eight groupings. The first three groupings (48 bits) comprise the network address. """
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@ -303,7 +303,7 @@ from ansible.module_utils.aws.iam import get_aws_account_id
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from ansible.module_utils.aws.waiters import get_waiter
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from ansible.module_utils.ec2 import AWSRetry, camel_dict_to_snake_dict, compare_aws_tags
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from ansible.module_utils.ec2 import ansible_dict_to_boto3_filter_list, boto3_tag_list_to_ansible_dict, ansible_dict_to_boto3_tag_list
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from ansible.module_utils.network.common.utils import to_ipv6_network, to_subnet
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from ansible.module_utils.common.network import to_ipv6_subnet, to_subnet
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from ansible.module_utils._text import to_text
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from ansible.module_utils.six import string_types
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@ -726,7 +726,7 @@ def validate_ip(module, cidr_ip):
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try:
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ip = to_subnet(split_addr[0], split_addr[1])
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except ValueError:
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ip = to_ipv6_network(split_addr[0]) + "/" + split_addr[1]
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ip = to_ipv6_subnet(split_addr[0]) + "/" + split_addr[1]
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if ip != cidr_ip:
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module.warn("One of your CIDR addresses ({0}) has host bits set. To get rid of this warning, "
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"check the network mask and make sure that only network bits are set: {1}.".format(cidr_ip, ip))
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@ -26,8 +26,9 @@ import pytest
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from ansible.module_utils.network.common.utils import to_list, sort_list
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from ansible.module_utils.network.common.utils import dict_diff, dict_merge
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from ansible.module_utils.network.common.utils import conditional, Template
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from ansible.module_utils.network.common.utils import to_masklen, to_netmask, to_subnet, to_ipv6_network
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from ansible.module_utils.network.common.utils import is_masklen, is_netmask
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from ansible.module_utils.common.network import (
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to_masklen, to_netmask, to_subnet, to_ipv6_network, to_ipv6_subnet, is_masklen, is_netmask
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)
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def test_to_list():
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@ -204,3 +205,9 @@ def test_to_ipv6_network():
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assert '2001:db8::' == to_ipv6_network('2001:db8::')
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assert '2001:0db8:85a3::' == to_ipv6_network('2001:0db8:85a3:0000:0000:8a2e:0370:7334')
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assert '2001:0db8:85a3::' == to_ipv6_network('2001:0db8:85a3:0:0:8a2e:0370:7334')
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def test_to_ipv6_subnet():
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assert '2001:db8::' == to_ipv6_subnet('2001:db8::')
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assert '2001:0db8:85a3:4242::' == to_ipv6_subnet('2001:0db8:85a3:4242:0000:8a2e:0370:7334')
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assert '2001:0db8:85a3:4242::' == to_ipv6_subnet('2001:0db8:85a3:4242:0:8a2e:0370:7334')
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@ -73,7 +73,8 @@ def test_validate_ip():
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ips = [
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('1.1.1.1/24', '1.1.1.0/24'),
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('192.168.56.101/16', '192.168.0.0/16'),
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('1203:8fe0:fe80:b897:8990:8a7c:99bf:323d/64', '1203:8fe0:fe80::/64'),
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# 64 bits make 8 octets, or 4 hextets
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('1203:8fe0:fe80:b897:8990:8a7c:99bf:323d/64', '1203:8fe0:fe80:b897::/64'),
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]
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for ip, net in ips:
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