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_hippi.h (4235B)

      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 HIPPI interface.
      8 *
      9 * Version:	@(#)if_hippi.h	1.0.0	05/26/97
     10 *
     11 * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
     12 *		Donald Becker, <becker@super.org>
     13 *		Alan Cox, <alan@lxorguk.ukuu.org.uk>
     14 *		Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
     15 *		Jes Sorensen, <Jes.Sorensen@cern.ch>
     16 *
     17 *		This program is free software; you can redistribute it and/or
     18 *		modify it under the terms of the GNU General Public License
     19 *		as published by the Free Software Foundation; either version
     20 *		2 of the License, or (at your option) any later version.
     21 */
     22 
     23#ifndef _LINUX_IF_HIPPI_H
     24#define _LINUX_IF_HIPPI_H
     25
     26#include <linux/types.h>
     27#include <asm/byteorder.h>
     28
     29/*
     30 *	HIPPI magic constants.
     31 */
     32
     33#define HIPPI_ALEN	6		/* Bytes in one HIPPI hw-addr	   */
     34#define HIPPI_HLEN	sizeof(struct hippi_hdr)
     35#define HIPPI_ZLEN	0		/* Min. bytes in frame without FCS */
     36#define HIPPI_DATA_LEN	65280		/* Max. bytes in payload	   */
     37#define HIPPI_FRAME_LEN	(HIPPI_DATA_LEN + HIPPI_HLEN)
     38					/* Max. bytes in frame without FCS */
     39
     40/*
     41 * Define LLC and SNAP constants.
     42 */
     43#define HIPPI_EXTENDED_SAP	0xAA
     44#define HIPPI_UI_CMD		0x03
     45
     46
     47/*
     48 *	Do we need to list some sort of ID's here?
     49 */
     50
     51/*
     52 *	HIPPI statistics collection data. 
     53 */
     54 
     55struct hipnet_statistics {
     56	int	rx_packets;		/* total packets received	*/
     57	int	tx_packets;		/* total packets transmitted	*/
     58	int	rx_errors;		/* bad packets received		*/
     59	int	tx_errors;		/* packet transmit problems	*/
     60	int	rx_dropped;		/* no space in linux buffers	*/
     61	int	tx_dropped;		/* no space available in linux	*/
     62
     63	/* detailed rx_errors: */
     64	int	rx_length_errors;
     65	int	rx_over_errors;		/* receiver ring buff overflow	*/
     66	int	rx_crc_errors;		/* recved pkt with crc error	*/
     67	int	rx_frame_errors;	/* recv'd frame alignment error */
     68	int	rx_fifo_errors;		/* recv'r fifo overrun		*/
     69	int	rx_missed_errors;	/* receiver missed packet	*/
     70
     71	/* detailed tx_errors */
     72	int	tx_aborted_errors;
     73	int	tx_carrier_errors;
     74	int	tx_fifo_errors;
     75	int	tx_heartbeat_errors;
     76	int	tx_window_errors;
     77};
     78
     79
     80struct hippi_fp_hdr {
     81#if 0
     82	__u8		ulp;				/* must contain 4 */
     83#if defined (__BIG_ENDIAN_BITFIELD)
     84	__u8		d1_data_present:1;		/* must be 1 */
     85	__u8		start_d2_burst_boundary:1;	/* must be zero */
     86	__u8		reserved:6;			/* must be zero */
     87#if 0
     88	__u16		reserved1:5;
     89	__u16		d1_area_size:8;			/* must be 3 */
     90	__u16		d2_offset:3;			/* must be zero */
     91#endif
     92#elif defined(__LITTLE_ENDIAN_BITFIELD)
     93	__u8		reserved:6;			/* must be zero */
     94	__u8	 	start_d2_burst_boundary:1;	/* must be zero */
     95	__u8		d1_data_present:1;		/* must be 1 */
     96#if 0
     97	__u16		d2_offset:3;			/* must be zero */
     98	__u16		d1_area_size:8;			/* must be 3 */
     99	__u16		reserved1:5;			/* must be zero */
    100#endif
    101#else
    102#error	"Please fix <asm/byteorder.h>"
    103#endif
    104#else
    105	__be32		fixed;
    106#endif
    107	__be32		d2_size;
    108} __attribute__((packed));
    109
    110struct hippi_le_hdr {
    111#if defined (__BIG_ENDIAN_BITFIELD)
    112	__u8		fc:3;
    113	__u8		double_wide:1;
    114	__u8		message_type:4;
    115#elif defined(__LITTLE_ENDIAN_BITFIELD)
    116	__u8		message_type:4;
    117	__u8		double_wide:1;
    118	__u8		fc:3;
    119#endif
    120	__u8		dest_switch_addr[3];
    121#if defined (__BIG_ENDIAN_BITFIELD)
    122	__u8		dest_addr_type:4,
    123			src_addr_type:4;
    124#elif defined(__LITTLE_ENDIAN_BITFIELD)
    125	__u8		src_addr_type:4,
    126			dest_addr_type:4;
    127#endif
    128	__u8		src_switch_addr[3];
    129	__u16		reserved;
    130	__u8		daddr[HIPPI_ALEN];
    131	__u16		locally_administered;
    132	__u8		saddr[HIPPI_ALEN];
    133} __attribute__((packed));
    134
    135#define HIPPI_OUI_LEN	3
    136/*
    137 * Looks like the dsap and ssap fields have been swapped by mistake in
    138 * RFC 2067 "IP over HIPPI".
    139 */
    140struct hippi_snap_hdr {
    141	__u8	dsap;			/* always 0xAA */
    142	__u8	ssap;			/* always 0xAA */
    143	__u8	ctrl;			/* always 0x03 */
    144	__u8	oui[HIPPI_OUI_LEN];	/* organizational universal id (zero)*/
    145	__be16	ethertype;		/* packet type ID field */
    146} __attribute__((packed));
    147
    148struct hippi_hdr {
    149	struct hippi_fp_hdr	fp;
    150	struct hippi_le_hdr	le;
    151	struct hippi_snap_hdr	snap;
    152} __attribute__((packed));
    153
    154#endif	/* _LINUX_IF_HIPPI_H */