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net: fix GetListenPort() to derive the proper port
`GetListenPort()` uses a simple logic: "if `-port=P` is given, then we must be listening on `P`, otherwise we must be listening on `8333`". This is however not true if `-bind=` has been provided with `:port` part or if `-whitebind=` has been provided. Thus, extend `GetListenPort()` to return the port from `-bind=` or `-whitebind=`, if any. Fixes bitcoin#20184 (cases 1. 2. 3. 5.)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| #!/usr/bin/env python3 | ||
| # Copyright (c) 2020-2021 The Bitcoin Core developers | ||
| # Distributed under the MIT software license, see the accompanying | ||
| # file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||
| """ | ||
| Test that the proper port is used for -externalip= | ||
| """ | ||
|
|
||
| from test_framework.test_framework import BitcoinTestFramework, SkipTest | ||
| from test_framework.util import assert_equal, p2p_port | ||
|
|
||
| # We need to bind to a routable address for this test to exercise the relevant code. | ||
| # To set a routable address on the machine use: | ||
| # Linux: | ||
| # ifconfig lo:0 1.1.1.1/32 up # to set up | ||
| # ifconfig lo:0 down # to remove it, after the test | ||
| # FreeBSD: | ||
| # ifconfig lo0 1.1.1.1/32 alias # to set up | ||
| # ifconfig lo0 1.1.1.1 -alias # to remove it, after the test | ||
| ADDR = '1.1.1.1' | ||
|
|
||
| # array of tuples [arguments, expected port in localaddresses] | ||
| EXPECTED = [ | ||
| [['-externalip=2.2.2.2', '-port=30001'], 30001], | ||
| [['-externalip=2.2.2.2', '-port=30002', f'-bind={ADDR}'], 30002], | ||
| [['-externalip=2.2.2.2', f'-bind={ADDR}'], 'default_p2p_port'], | ||
| [['-externalip=2.2.2.2', '-port=30003', f'-bind={ADDR}:30004'], 30004], | ||
| [['-externalip=2.2.2.2', f'-bind={ADDR}:30005'], 30005], | ||
| [['-externalip=2.2.2.2:30006', '-port=30007'], 30006], | ||
| [['-externalip=2.2.2.2:30008', '-port=30009', f'-bind={ADDR}'], 30008], | ||
| [['-externalip=2.2.2.2:30010', f'-bind={ADDR}'], 30010], | ||
| [['-externalip=2.2.2.2:30011', '-port=30012', f'-bind={ADDR}:30013'], 30011], | ||
| [['-externalip=2.2.2.2:30014', f'-bind={ADDR}:30015'], 30014], | ||
| [['-externalip=2.2.2.2', '-port=30016', f'-bind={ADDR}:30017', | ||
| f'-whitebind={ADDR}:30018'], 30017], | ||
| [['-externalip=2.2.2.2', '-port=30019', | ||
| f'-whitebind={ADDR}:30020'], 30020], | ||
| ] | ||
|
|
||
| class BindPortExternalIPTest(BitcoinTestFramework): | ||
| def set_test_params(self): | ||
| # Avoid any -bind= on the command line. Force the framework to avoid adding -bind=127.0.0.1. | ||
| self.setup_clean_chain = True | ||
| self.bind_to_localhost_only = False | ||
| self.num_nodes = len(EXPECTED) | ||
| self.extra_args = list(map(lambda e: e[0], EXPECTED)) | ||
|
|
||
| def add_options(self, parser): | ||
| parser.add_argument( | ||
| "--ihave1111", action='store_true', dest="ihave1111", | ||
| help=f"Run the test, assuming {ADDR} is configured on the machine", | ||
| default=False) | ||
|
|
||
| def skip_test_if_missing_module(self): | ||
| if not self.options.ihave1111: | ||
| raise SkipTest( | ||
| f"To run this test make sure that {ADDR} (a routable address) is assigned " | ||
| "to one of the interfaces on this machine and rerun with --ihave1111") | ||
|
|
||
| def run_test(self): | ||
| self.log.info("Test the proper port is used for -externalip=") | ||
| for i in range(len(EXPECTED)): | ||
| expected_port = EXPECTED[i][1] | ||
| if expected_port == 'default_p2p_port': | ||
| expected_port = p2p_port(i) | ||
| found = False | ||
| for local in self.nodes[i].getnetworkinfo()['localaddresses']: | ||
| if local['address'] == '2.2.2.2': | ||
| assert_equal(local['port'], expected_port) | ||
| found = True | ||
| break | ||
| assert found | ||
|
|
||
| if __name__ == '__main__': | ||
| BindPortExternalIPTest().main() |
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