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29 lines
931 B
Python
29 lines
931 B
Python
import ipaddress
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def zone_is_subset(re2o_reverse_zone, network):
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"""Check if all the subnets are inside another network
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Examples
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--------
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An Example to check if the function works as intended
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>>> net1 = ipaddress.IPv4Network("10.11.0.0/16")
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>>> cidrs = ['10.11.1.0/24', '10.11.2.0/23', '10.11.4.0/22']
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>>> zone = {'cidrs': cidrs}
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>>> zone_is_subset(zone, net1)
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True
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"""
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if network.version == 4:
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return all(ipaddress.ip_network(n).subnet_of(network) for n in
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re2o_reverse_zone["cidrs"])
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elif network.version == 6:
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if re2o_reverse_zone["prefix_v6"]:
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ipv6_prefix = re2o_reverse_zone["prefix_v6"]
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ipv6_prefix_length = re2o_reverse_zone["prefix_v6_length"]
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net6 = ipaddress.ip_network(f"{ipv6_prefix}/{ipv6_prefix_length}")
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return net6.subnet_of(network)
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else:
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return False
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