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/* SPDX-License-Identifier: GPL-3.0-or-later */
#pragma once
//
// This module implements a Linux tun device. The tun_alloc() functions creates a tun device
// with a given name, IP address, subnet mask and MTU.
//
#include <linux/if.h>
/// Allocate a tun device with the given CIDR (e.g. "172.16.0.1/24") and MTU.
/// Returns fd on success, -1 on failure (errno is set).
int tun_alloc(const char* ifname, const char* cidr, int mtu);
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