1/* $OpenBSD: frame.h,v 1.1 2024/12/15 11:00:05 dlg Exp $ */
2
3/*
4 * Copyright (c) 2024 David Gwynne <dlg@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef _NET_FRAME_H_
20#define _NET_FRAME_H_
21
22#define FRAME_ADDRLEN 8 /* big enough for Ethernet */
23#define FRAME_DATALEN 32
24
25struct sockaddr_frame {
26 uint8_t sfrm_len;
27 uint8_t sfrm_family; /* AF_FRAME */
28 uint16_t sfrm_proto;
29 unsigned int sfrm_ifindex;
30 uint8_t sfrm_addr[FRAME_ADDRLEN];
31 char sfrm_ifname[IFNAMSIZ];
32 uint8_t sfrm_data[FRAME_DATALEN];
33};
34
35#define FRAME_RECVDSTADDR 0 /* int */
36#define FRAME_RECVPRIO 1 /* int */
37#define FRAME_ADD_MEMBERSHIP 64 /* struct frame_mreq */
38#define FRAME_DEL_MEMBERSHIP 65 /* struct frame_mreq */
39#define FRAME_SENDPRIO 66 /* int: IF_HDRPRIO_{MIN-MAX,PACKET} */
40
41struct frame_mreq {
42 unsigned int fmr_ifindex;
43 uint8_t fmr_addr[FRAME_ADDRLEN];
44 char fmr_ifname[IFNAMSIZ];
45};
46
47#endif /* _NET_FRAME_H_ */