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Commit c0dd9678 authored by William Tu's avatar William Tu Committed by Daniel Borkmann
Browse files

tools, include: Grab a copy of linux/erspan.h 



Bring the erspan uapi header file so BPF tunnel helpers can use it.

Fixes: 933a741e ("selftests/bpf: bpf tunnel test.")
Reported-by: default avatarYonghong Song <yhs@fb.com>
Signed-off-by: default avatarWilliam Tu <u9012063@gmail.com>
Acked-by: default avatarYonghong Song <yhs@fb.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent 081023a3

tools/include/uapi/linux/erspan.h

0 → 100644
+52 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

/*

 * ERSPAN Tunnel Metadata

 *

 * Copyright (c) 2018 VMware

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2

 * as published by the Free Software Foundation.

 *

 * Userspace API for metadata mode ERSPAN tunnel

 */

#ifndef _UAPI_ERSPAN_H

#define _UAPI_ERSPAN_H



#include <linux/types.h>	/* For __beXX in userspace */

#include <asm/byteorder.h>



/* ERSPAN version 2 metadata header */

struct erspan_md2 {

	__be32 timestamp;

	__be16 sgt;	/* security group tag */

#if defined(__LITTLE_ENDIAN_BITFIELD)

	__u8	hwid_upper:2,

		ft:5,

		p:1;

	__u8	o:1,

		gra:2,

		dir:1,

		hwid:4;

#elif defined(__BIG_ENDIAN_BITFIELD)

	__u8	p:1,

		ft:5,

		hwid_upper:2;

	__u8	hwid:4,

		dir:1,

		gra:2,

		o:1;

#else

#error "Please fix <asm/byteorder.h>"

#endif

};



struct erspan_metadata {

	int version;

	union {

		__be32 index;		/* Version 1 (type II)*/

		struct erspan_md2 md2;	/* Version 2 (type III) */

	} u;

};



#endif /* _UAPI_ERSPAN_H */