Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.1 KiB
Python
50 lines
1.1 KiB
Python
# SPDX-License-Identifier: GPL-2.0
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from .utils import ip
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import ctypes
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import random
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import string
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libc = ctypes.cdll.LoadLibrary('libc.so.6')
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class NetNS:
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def __init__(self, name=None):
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if name:
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self.name = name
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else:
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self.name = ''.join(random.choice(string.ascii_lowercase) for _ in range(8))
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ip('netns add ' + self.name)
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def __del__(self):
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if self.name:
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ip('netns del ' + self.name)
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self.name = None
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def __enter__(self):
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return self
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def __exit__(self, ex_type, ex_value, ex_tb):
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self.__del__()
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def __str__(self):
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return self.name
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def __repr__(self):
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return f"NetNS({self.name})"
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class NetNSEnter:
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def __init__(self, ns_name):
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self.ns_path = f"/run/netns/{ns_name}"
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def __enter__(self):
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self.saved = open("/proc/thread-self/ns/net")
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with open(self.ns_path) as ns_file:
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libc.setns(ns_file.fileno(), 0)
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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libc.setns(self.saved.fileno(), 0)
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self.saved.close()
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