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