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# Copyright 2019, 2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
import errno
import os
import platform
import pytest
import portage.process
from portage.const import BASH_BINARY
from portage.tests import TestCase
CLONE_NEWNET = 0x40000000
UNSHARE_NET_TEST_SCRIPT = """
ping -c 1 -W 1 127.0.0.1 || exit 1
ping -c 1 -W 1 10.0.0.1 || exit 1
[[ -n ${IPV6} ]] || exit 0
ping -c 1 -W 1 ::1 || exit 1
ping -c 1 -W 1 fd::1 || exit 1
"""
class UnshareNetTestCase(TestCase):
def setUp(self):
"""
Initialize ABILITY_TO_UNSHARE in setUp so that _unshare_validate
uses the correct PORTAGE_MULTIPROCESSING_START_METHOD setup
from super().setUp().
"""
super().setUp()
self.ABILITY_TO_UNSHARE = portage.process._unshare_validate(CLONE_NEWNET)
@pytest.mark.skipif(
portage.process.find_binary("ping") is None, reason="ping not found"
)
@pytest.mark.skipif(platform.system() != "Linux", reason="not Linux")
def testUnshareNet(self):
if self.ABILITY_TO_UNSHARE != 0:
pytest.skip(
f"Unable to unshare: {errno.errorcode.get(self.ABILITY_TO_UNSHARE, '?')}"
)
env = os.environ.copy()
env["IPV6"] = "1" if portage.process.has_ipv6() else ""
self.assertEqual(
portage.process.spawn(
[BASH_BINARY, "-c", UNSHARE_NET_TEST_SCRIPT], unshare_net=True, env=env
),
0,
)
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