diff options
| author | Kacper <kacper@mail.openlinux.dev> | 2025-12-07 20:10:31 +0100 |
|---|---|---|
| committer | Kacper <kacper@mail.openlinux.dev> | 2025-12-07 20:10:31 +0100 |
| commit | fc00c656c96528112d05cf0edf8631bd5eaea446 (patch) | |
| tree | a6e0e6c588191a8bd1c64afc3b7a258e3e66c236 /include/arch/x86_64/linux/erspan.h | |
Add build system scaffolding and libc headers
Diffstat (limited to 'include/arch/x86_64/linux/erspan.h')
| -rw-r--r-- | include/arch/x86_64/linux/erspan.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/arch/x86_64/linux/erspan.h b/include/arch/x86_64/linux/erspan.h new file mode 100644 index 00000000..e97e6f74 --- /dev/null +++ b/include/arch/x86_64/linux/erspan.h @@ -0,0 +1,42 @@ +/* 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 _ERSPAN_H +#define _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 /* _ERSPAN_H */ |