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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2025-2026 Pouria Mousavizadeh Tehrani <pouria@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _NET_IF_GENEVE_H_
#define _NET_IF_GENEVE_H_
#include <sys/types.h>
#ifdef _KERNEL
struct genevehdr {
#if BYTE_ORDER == LITTLE_ENDIAN
uint8_t geneve_optlen:6, /* Opt Len */
geneve_ver:2; /* version */
uint8_t geneve_flags:6, /* GENEVE Flags */
geneve_critical:1, /* critical options present */
geneve_control:1; /* control packets */
#endif
#if BYTE_ORDER == BIG_ENDIAN
uint8_t geneve_ver:2, /* version */
geneve_optlen:6; /* Opt Len */
uint8_t geneve_control:1, /* control packets */
geneve_critical:1, /* critical options present */
geneve_flags:6; /* GENEVE Flags */
#endif
uint16_t geneve_proto; /* protocol type (follows Ethertypes) */
uint32_t geneve_vni; /* virtual network identifier */
} __packed;
struct geneveudphdr {
struct udphdr geneve_udp;
struct genevehdr geneve_hdr;
} __packed;
#endif /* _KERNEL */
struct geneve_params {
uint16_t ifla_proto;
};
#define GENEVE_VNI_MAX (1 << 24)
#define GENEVE_PROTO_ETHER 0x6558 /* Ethernet */
#define GENEVE_PROTO_INHERIT 0x0 /* inherit inner layer 3 headers */
#define GENEVE_UDPPORT 6081
#endif /* _NET_IF_GENEVE_H_ */
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