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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note *//* * Universal TUN/TAP device driver. * Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */
#ifndef _UAPI__IF_TUN_H#define _UAPI__IF_TUN_H
#include <linux/types.h>#include <linux/if_ether.h>#include <linux/filter.h>
/* Read queue size */#define TUN_READQ_SIZE 500/* TUN device type flags: deprecated. Use IFF_TUN/IFF_TAP instead. */#define TUN_TUN_DEV IFF_TUN#define TUN_TAP_DEV IFF_TAP#define TUN_TYPE_MASK 0x000f
/* Ioctl defines */#define TUNSETNOCSUM _IOW('T', 200, int) #define TUNSETDEBUG _IOW('T', 201, int) #define TUNSETIFF _IOW('T', 202, int) #define TUNSETPERSIST _IOW('T', 203, int) #define TUNSETOWNER _IOW('T', 204, int)#define TUNSETLINK _IOW('T', 205, int)#define TUNSETGROUP _IOW('T', 206, int)#define TUNGETFEATURES _IOR('T', 207, unsigned int)#define TUNSETOFFLOAD _IOW('T', 208, unsigned int)#define TUNSETTXFILTER _IOW('T', 209, unsigned int)#define TUNGETIFF _IOR('T', 210, unsigned int)#define TUNGETSNDBUF _IOR('T', 211, int)#define TUNSETSNDBUF _IOW('T', 212, int)#define TUNATTACHFILTER _IOW('T', 213, struct sock_fprog)#define TUNDETACHFILTER _IOW('T', 214, struct sock_fprog)#define TUNGETVNETHDRSZ _IOR('T', 215, int)#define TUNSETVNETHDRSZ _IOW('T', 216, int)#define TUNSETQUEUE _IOW('T', 217, int)#define TUNSETIFINDEX _IOW('T', 218, unsigned int)#define TUNGETFILTER _IOR('T', 219, struct sock_fprog)#define TUNSETVNETLE _IOW('T', 220, int)#define TUNGETVNETLE _IOR('T', 221, int)/* The TUNSETVNETBE and TUNGETVNETBE ioctls are for cross-endian support on * little-endian hosts. Not all kernel configurations support them, but all * configurations that support SET also support GET. */#define TUNSETVNETBE _IOW('T', 222, int)#define TUNGETVNETBE _IOR('T', 223, int)#define TUNSETSTEERINGEBPF _IOR('T', 224, int)#define TUNSETFILTEREBPF _IOR('T', 225, int)#define TUNSETCARRIER _IOW('T', 226, int)#define TUNGETDEVNETNS _IO('T', 227)
/* TUNSETIFF ifr flags */#define IFF_TUN 0x0001#define IFF_TAP 0x0002#define IFF_NAPI 0x0010#define IFF_NAPI_FRAGS 0x0020#define IFF_NO_PI 0x1000/* This flag has no real effect */#define IFF_ONE_QUEUE 0x2000#define IFF_VNET_HDR 0x4000#define IFF_TUN_EXCL 0x8000#define IFF_MULTI_QUEUE 0x0100#define IFF_ATTACH_QUEUE 0x0200#define IFF_DETACH_QUEUE 0x0400/* read-only flag */#define IFF_PERSIST 0x0800#define IFF_NOFILTER 0x1000
/* Socket options */#define TUN_TX_TIMESTAMP 1
/* Features for GSO (TUNSETOFFLOAD). */#define TUN_F_CSUM 0x01 /* You can hand me unchecksummed packets. */#define TUN_F_TSO4 0x02 /* I can handle TSO for IPv4 packets */#define TUN_F_TSO6 0x04 /* I can handle TSO for IPv6 packets */#define TUN_F_TSO_ECN 0x08 /* I can handle TSO with ECN bits. */#define TUN_F_UFO 0x10 /* I can handle UFO packets */
/* Protocol info prepended to the packets (when IFF_NO_PI is not set) */#define TUN_PKT_STRIP 0x0001struct tun_pi { __u16 flags; __be16 proto;};
/* * Filter spec (used for SETXXFILTER ioctls) * This stuff is applicable only to the TAP (Ethernet) devices. * If the count is zero the filter is disabled and the driver accepts * all packets (promisc mode). * If the filter is enabled in order to accept broadcast packets * broadcast addr must be explicitly included in the addr list. */#define TUN_FLT_ALLMULTI 0x0001 /* Accept all multicast packets */struct tun_filter { __u16 flags; /* TUN_FLT_ flags see above */ __u16 count; /* Number of addresses */ __u8 addr[][ETH_ALEN];};
#endif /* _UAPI__IF_TUN_H */