xref: /linux/tools/testing/selftests/net/lib/py/netns.py (revision 90d32e92011eaae8e70a9169b4e7acf4ca8f9d3a) 
1# SPDX-License-Identifier: GPL-2.0
2
3from .utils import ip
4import random
5import string
6
7
8class NetNS:
9    def __init__(self, name=None):
10        if name:
11            self.name = name
12        else:
13            self.name = ''.join(random.choice(string.ascii_lowercase) for _ in range(8))
14        ip('netns add ' + self.name)
15
16    def __del__(self):
17        if self.name:
18            ip('netns del ' + self.name)
19            self.name = None
20
21    def __enter__(self):
22        return self
23
24    def __exit__(self, ex_type, ex_value, ex_tb):
25        self.__del__()
26
27    def __str__(self):
28        return self.name
29
30    def __repr__(self):
31        return f"NetNS({self.name})"
32