d350a82302
The patch adds a new uapi header file, erspan.h, and moves the 'struct erspan_metadata' from internal erspan.h to it. Signed-off-by: William Tu <u9012063@gmail.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
53 lines
1 KiB
C
53 lines
1 KiB
C
/* 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 */
|