cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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if_fddi.h (4384B)


      1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
      2/*
      3 * INET		An implementation of the TCP/IP protocol suite for the LINUX
      4 *		operating system.  INET is implemented using the BSD Socket
      5 *		interface as the means of communication with the user level.
      6 *
      7 *		Global definitions for the ANSI FDDI interface.
      8 *
      9 * Version:	@(#)if_fddi.h	1.0.3	Oct  6 2018
     10 *
     11 * Author:	Lawrence V. Stefani, <stefani@yahoo.com>
     12 * Maintainer:	Maciej W. Rozycki, <macro@orcam.me.uk>
     13 *
     14 *		if_fddi.h is based on previous if_ether.h and if_tr.h work by
     15 *			Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
     16 *			Donald Becker, <becker@super.org>
     17 *			Alan Cox, <alan@lxorguk.ukuu.org.uk>
     18 *			Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
     19 *			Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
     20 *
     21 *		This program is free software; you can redistribute it and/or
     22 *		modify it under the terms of the GNU General Public License
     23 *		as published by the Free Software Foundation; either version
     24 *		2 of the License, or (at your option) any later version.
     25 */
     26#ifndef _UAPI_LINUX_IF_FDDI_H
     27#define _UAPI_LINUX_IF_FDDI_H
     28
     29#include <linux/types.h>
     30
     31/*
     32 *  Define max and min legal sizes.  The frame sizes do not include
     33 *  4 byte FCS/CRC (frame check sequence).
     34 */
     35#define FDDI_K_ALEN		6	/* Octets in one FDDI address */
     36#define FDDI_K_8022_HLEN	16	/* Total octets in 802.2 header */
     37#define FDDI_K_SNAP_HLEN	21	/* Total octets in 802.2 SNAP header */
     38#define FDDI_K_8022_ZLEN	16	/* Min octets in 802.2 frame sans
     39					   FCS */
     40#define FDDI_K_SNAP_ZLEN	21	/* Min octets in 802.2 SNAP frame sans
     41					   FCS */
     42#define FDDI_K_8022_DLEN	4475	/* Max octets in 802.2 payload */
     43#define FDDI_K_SNAP_DLEN	4470	/* Max octets in 802.2 SNAP payload */
     44#define FDDI_K_LLC_ZLEN		13	/* Min octets in LLC frame sans FCS */
     45#define FDDI_K_LLC_LEN		4491	/* Max octets in LLC frame sans FCS */
     46#define FDDI_K_OUI_LEN		3	/* Octets in OUI in 802.2 SNAP
     47					   header */
     48
     49/* Define FDDI Frame Control (FC) Byte masks */
     50#define FDDI_FC_K_CLASS_MASK		0x80	/* class bit */
     51#define FDDI_FC_K_CLASS_SYNC		0x80
     52#define FDDI_FC_K_CLASS_ASYNC		0x00
     53#define FDDI_FC_K_ALEN_MASK		0x40	/* address length bit */
     54#define FDDI_FC_K_ALEN_48		0x40
     55#define FDDI_FC_K_ALEN_16		0x00
     56#define FDDI_FC_K_FORMAT_MASK		0x30	/* format bits */
     57#define FDDI_FC_K_FORMAT_FUTURE		0x30
     58#define FDDI_FC_K_FORMAT_IMPLEMENTOR	0x20
     59#define FDDI_FC_K_FORMAT_LLC		0x10
     60#define FDDI_FC_K_FORMAT_MANAGEMENT	0x00
     61#define FDDI_FC_K_CONTROL_MASK		0x0f	/* control bits */
     62
     63/* Define FDDI Frame Control (FC) Byte specific values */
     64#define FDDI_FC_K_VOID			0x00
     65#define FDDI_FC_K_NON_RESTRICTED_TOKEN	0x80
     66#define FDDI_FC_K_RESTRICTED_TOKEN	0xC0
     67#define FDDI_FC_K_SMT_MIN		0x41
     68#define FDDI_FC_K_SMT_MAX		0x4F
     69#define FDDI_FC_K_MAC_MIN		0xC1
     70#define FDDI_FC_K_MAC_MAX		0xCF
     71#define FDDI_FC_K_ASYNC_LLC_MIN		0x50
     72#define FDDI_FC_K_ASYNC_LLC_DEF		0x54
     73#define FDDI_FC_K_ASYNC_LLC_MAX		0x5F
     74#define FDDI_FC_K_SYNC_LLC_MIN		0xD0
     75#define FDDI_FC_K_SYNC_LLC_MAX		0xD7
     76#define FDDI_FC_K_IMPLEMENTOR_MIN	0x60
     77#define FDDI_FC_K_IMPLEMENTOR_MAX	0x6F
     78#define FDDI_FC_K_RESERVED_MIN		0x70
     79#define FDDI_FC_K_RESERVED_MAX		0x7F
     80
     81/* Define LLC and SNAP constants */
     82#define FDDI_EXTENDED_SAP		0xAA
     83#define FDDI_UI_CMD			0x03
     84
     85/* Define 802.2 Type 1 header */
     86struct fddi_8022_1_hdr {
     87	__u8	dsap;			/* destination service access point */
     88	__u8	ssap;			/* source service access point */
     89	__u8	ctrl;			/* control byte #1 */
     90} __attribute__((packed));
     91
     92/* Define 802.2 Type 2 header */
     93struct fddi_8022_2_hdr {
     94	__u8	dsap;			/* destination service access point */
     95	__u8	ssap;			/* source service access point */
     96	__u8	ctrl_1;			/* control byte #1 */
     97	__u8	ctrl_2;			/* control byte #2 */
     98} __attribute__((packed));
     99
    100/* Define 802.2 SNAP header */
    101struct fddi_snap_hdr {
    102	__u8	dsap;			/* always 0xAA */
    103	__u8	ssap;			/* always 0xAA */
    104	__u8	ctrl;			/* always 0x03 */
    105	__u8	oui[FDDI_K_OUI_LEN];	/* organizational universal id */
    106	__be16	ethertype;		/* packet type ID field */
    107} __attribute__((packed));
    108
    109/* Define FDDI LLC frame header */
    110struct fddihdr {
    111	__u8	fc;			/* frame control */
    112	__u8	daddr[FDDI_K_ALEN];	/* destination address */
    113	__u8	saddr[FDDI_K_ALEN];	/* source address */
    114	union {
    115		struct fddi_8022_1_hdr	llc_8022_1;
    116		struct fddi_8022_2_hdr	llc_8022_2;
    117		struct fddi_snap_hdr	llc_snap;
    118	} hdr;
    119} __attribute__((packed));
    120
    121
    122#endif /* _UAPI_LINUX_IF_FDDI_H */