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bpo-33433 Fix private address checking for IPv4 mapped IPv6. (GH-26172)

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For IPv4 mapped IPv6 addresses, defer privacy check to the mapped IPv4 address. Solves bug where public mapped IPv4 addresses are considered private by the IPv6 check.

Automerge-Triggered-By: GH:gpshead
This commit is contained in:
Pete Wicken 2021-05-17 08:52:36 +01:00 • committed by GitHub
parent c10392e7dd
commit 83f0f8d62f
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3 changed files with 13 additions and 1 deletions
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6
Lib/test/test_ipaddress.py
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@ -2339,6 +2339,12 @@ class IpaddrUnitTest(unittest.TestCase):
self.assertEqual(ipaddress.ip_address('::ffff:c0a8:101').ipv4_mapped,
ipaddress.ip_address('192.168.1.1'))
def testIpv4MappedPrivateCheck(self):
self.assertEqual(
True, ipaddress.ip_address('::ffff:192.168.1.1').is_private)
self.assertEqual(
False, ipaddress.ip_address('::ffff:172.32.0.0').is_private)
def testAddrExclude(self):
addr1 = ipaddress.ip_network('10.1.1.0/24')
addr2 = ipaddress.ip_network('10.1.1.0/26')