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52 lines
1.0 KiB
52 lines
1.0 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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/* |
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* ERSPAN Tunnel Metadata |
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* |
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* Copyright (c) 2018 VMware |
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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 version 2 |
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* as published by the Free Software Foundation. |
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* |
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* Userspace API for metadata mode ERSPAN tunnel |
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*/ |
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#ifndef _UAPI_ERSPAN_H |
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#define _UAPI_ERSPAN_H |
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#include <linux/types.h> /* For __beXX in userspace */ |
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#include <asm/byteorder.h> |
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/* ERSPAN version 2 metadata header */ |
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struct erspan_md2 { |
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__be32 timestamp; |
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__be16 sgt; /* security group tag */ |
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#if defined(__LITTLE_ENDIAN_BITFIELD) |
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__u8 hwid_upper:2, |
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ft:5, |
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p:1; |
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__u8 o:1, |
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gra:2, |
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dir:1, |
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hwid:4; |
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#elif defined(__BIG_ENDIAN_BITFIELD) |
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__u8 p:1, |
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ft:5, |
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hwid_upper:2; |
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__u8 hwid:4, |
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dir:1, |
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gra:2, |
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o:1; |
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#else |
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#error "Please fix <asm/byteorder.h>" |
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#endif |
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}; |
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struct erspan_metadata { |
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int version; |
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union { |
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__be32 index; /* Version 1 (type II)*/ |
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struct erspan_md2 md2; /* Version 2 (type III) */ |
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} u; |
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}; |
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#endif /* _UAPI_ERSPAN_H */
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