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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atmbr2684.h (3271B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2#ifndef _LINUX_ATMBR2684_H
      3#define _LINUX_ATMBR2684_H
      4
      5#include <linux/types.h>
      6#include <linux/atm.h>
      7#include <linux/if.h>		/* For IFNAMSIZ */
      8
      9/*
     10 * Type of media we're bridging (ethernet, token ring, etc)  Currently only
     11 * ethernet is supported
     12 */
     13#define BR2684_MEDIA_ETHERNET	(0)	/* 802.3 */
     14#define BR2684_MEDIA_802_4	(1)	/* 802.4 */
     15#define BR2684_MEDIA_TR		(2)	/* 802.5 - token ring */
     16#define BR2684_MEDIA_FDDI	(3)
     17#define BR2684_MEDIA_802_6	(4)	/* 802.6 */
     18
     19					/* used only at device creation:  */
     20#define BR2684_FLAG_ROUTED	(1<<16)	/* payload is routed, not bridged */
     21
     22/*
     23 * Is there FCS inbound on this VC?  This currently isn't supported.
     24 */
     25#define BR2684_FCSIN_NO		(0)
     26#define BR2684_FCSIN_IGNORE	(1)
     27#define BR2684_FCSIN_VERIFY	(2)
     28
     29/*
     30 * Is there FCS outbound on this VC?  This currently isn't supported.
     31 */
     32#define BR2684_FCSOUT_NO	(0)
     33#define BR2684_FCSOUT_SENDZERO	(1)
     34#define BR2684_FCSOUT_GENERATE	(2)
     35
     36/*
     37 * Does this VC include LLC encapsulation?
     38 */
     39#define BR2684_ENCAPS_VC	(0)	/* VC-mux */
     40#define BR2684_ENCAPS_LLC	(1)
     41#define BR2684_ENCAPS_AUTODETECT (2)	/* Unsuported */
     42
     43/*
     44 * Is this VC bridged or routed?
     45 */
     46
     47#define BR2684_PAYLOAD_ROUTED   (0)
     48#define BR2684_PAYLOAD_BRIDGED  (1)
     49
     50/*
     51 * This is for the ATM_NEWBACKENDIF call - these are like socket families:
     52 * the first element of the structure is the backend number and the rest
     53 * is per-backend specific
     54 */
     55struct atm_newif_br2684 {
     56	atm_backend_t backend_num;	/* ATM_BACKEND_BR2684 */
     57	int media;		/* BR2684_MEDIA_*, flags in upper bits */
     58	char ifname[IFNAMSIZ];
     59	int mtu;
     60};
     61
     62/*
     63 * This structure is used to specify a br2684 interface - either by a
     64 * positive integer (returned by ATM_NEWBACKENDIF) or the interfaces name
     65 */
     66#define BR2684_FIND_BYNOTHING	(0)
     67#define BR2684_FIND_BYNUM	(1)
     68#define BR2684_FIND_BYIFNAME	(2)
     69struct br2684_if_spec {
     70	int method;		/* BR2684_FIND_* */
     71	union {
     72		char ifname[IFNAMSIZ];
     73		int devnum;
     74	} spec;
     75};
     76
     77/*
     78 * This is for the ATM_SETBACKEND call - these are like socket families:
     79 * the first element of the structure is the backend number and the rest
     80 * is per-backend specific
     81 */
     82struct atm_backend_br2684 {
     83	atm_backend_t backend_num;	/* ATM_BACKEND_BR2684 */
     84	struct br2684_if_spec ifspec;
     85	int fcs_in;		/* BR2684_FCSIN_* */
     86	int fcs_out;		/* BR2684_FCSOUT_* */
     87	int fcs_auto;		/* 1: fcs_{in,out} disabled if no FCS rx'ed */
     88	int encaps;		/* BR2684_ENCAPS_* */
     89	int has_vpiid;		/* 1: use vpn_id - Unsupported */
     90	__u8 vpn_id[7];
     91	int send_padding;	/* unsupported */
     92	int min_size;		/* we will pad smaller packets than this */
     93};
     94
     95/*
     96 * The BR2684_SETFILT ioctl is an experimental mechanism for folks
     97 * terminating a large number of IP-only vcc's.  When netfilter allows
     98 * efficient per-if in/out filters, this support will be removed
     99 */
    100struct br2684_filter {
    101	__be32 prefix;		/* network byte order */
    102	__be32 netmask;		/* 0 = disable filter */
    103};
    104
    105struct br2684_filter_set {
    106	struct br2684_if_spec ifspec;
    107	struct br2684_filter filter;
    108};
    109
    110enum br2684_payload {
    111	p_routed = BR2684_PAYLOAD_ROUTED,
    112	p_bridged = BR2684_PAYLOAD_BRIDGED,
    113};
    114
    115#define BR2684_SETFILT	_IOW( 'a', ATMIOC_BACKEND + 0, \
    116				struct br2684_filter_set)
    117
    118#endif /* _LINUX_ATMBR2684_H */