1/*
2 * Copyright 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 * tun.h - tun device functions
17 */
18#ifndef __TUN_H__
19#define __TUN_H__
20
21#include <linux/if.h>
22
23#include "clatd.h"
24#include "ring.h"
25
26struct tun_data {
27  char device4[IFNAMSIZ];
28  int read_fd6, write_fd6, fd4;
29  struct packet_ring ring;
30};
31
32int tun_open();
33int tun_alloc(char *dev, int fd);
34int send_tun(int fd, clat_packet out, int iov_len);
35int set_nonblocking(int fd);
36
37#endif
38