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31 lines
915 B
31 lines
915 B
#!/usr/bin/python3
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# Copyright (C) 2020 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http:#www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import fcntl
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import struct
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import sys
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TUNSETIFF = 0x400454ca
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IFF_TAP = 0x0002
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IFF_NO_PI = 0x1000
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IFF_VNET_HDR = 0x4000
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tun_fd = int(sys.argv[1])
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tap_name = sys.argv[2]
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ifr = struct.pack('16sH', tap_name.encode('utf-8'), IFF_TAP | IFF_NO_PI | IFF_VNET_HDR)
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fcntl.ioctl(tun_fd, TUNSETIFF, ifr)
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