e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
131 lines
3.6 KiB
C
131 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Global definitions for the ARCnet interface.
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*
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* Authors: David Woodhouse and Avery Pennarun
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _LINUX_IF_ARCNET_H
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#define _LINUX_IF_ARCNET_H
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#include <linux/types.h>
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#include <linux/if_ether.h>
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/*
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* These are the defined ARCnet Protocol ID's.
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*/
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/* CAP mode */
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/* No macro but uses 1-8 */
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/* RFC1201 Protocol ID's */
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#define ARC_P_IP 212 /* 0xD4 */
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#define ARC_P_IPV6 196 /* 0xC4: RFC2497 */
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#define ARC_P_ARP 213 /* 0xD5 */
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#define ARC_P_RARP 214 /* 0xD6 */
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#define ARC_P_IPX 250 /* 0xFA */
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#define ARC_P_NOVELL_EC 236 /* 0xEC */
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/* Old RFC1051 Protocol ID's */
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#define ARC_P_IP_RFC1051 240 /* 0xF0 */
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#define ARC_P_ARP_RFC1051 241 /* 0xF1 */
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/* MS LanMan/WfWg "NDIS" encapsulation */
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#define ARC_P_ETHER 232 /* 0xE8 */
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/* Unsupported/indirectly supported protocols */
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#define ARC_P_DATAPOINT_BOOT 0 /* very old Datapoint equipment */
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#define ARC_P_DATAPOINT_MOUNT 1
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#define ARC_P_POWERLAN_BEACON 8 /* Probably ATA-Netbios related */
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#define ARC_P_POWERLAN_BEACON2 243 /* 0xF3 */
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#define ARC_P_LANSOFT 251 /* 0xFB - what is this? */
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#define ARC_P_ATALK 0xDD
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/* Hardware address length */
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#define ARCNET_ALEN 1
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/*
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* The RFC1201-specific components of an arcnet packet header.
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*/
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struct arc_rfc1201 {
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__u8 proto; /* protocol ID field - varies */
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__u8 split_flag; /* for use with split packets */
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__be16 sequence; /* sequence number */
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__u8 payload[0]; /* space remaining in packet (504 bytes)*/
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};
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#define RFC1201_HDR_SIZE 4
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/*
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* The RFC1051-specific components.
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*/
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struct arc_rfc1051 {
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__u8 proto; /* ARC_P_RFC1051_ARP/RFC1051_IP */
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__u8 payload[0]; /* 507 bytes */
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};
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#define RFC1051_HDR_SIZE 1
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/*
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* The ethernet-encap-specific components. We have a real ethernet header
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* and some data.
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*/
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struct arc_eth_encap {
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__u8 proto; /* Always ARC_P_ETHER */
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struct ethhdr eth; /* standard ethernet header (yuck!) */
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__u8 payload[0]; /* 493 bytes */
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};
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#define ETH_ENCAP_HDR_SIZE 14
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struct arc_cap {
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__u8 proto;
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__u8 cookie[sizeof(int)];
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/* Actually NOT sent over the network */
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union {
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__u8 ack;
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__u8 raw[0]; /* 507 bytes */
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} mes;
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};
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/*
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* The data needed by the actual arcnet hardware.
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*
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* Now, in the real arcnet hardware, the third and fourth bytes are the
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* 'offset' specification instead of the length, and the soft data is at
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* the _end_ of the 512-byte buffer. We hide this complexity inside the
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* driver.
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*/
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struct arc_hardware {
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__u8 source; /* source ARCnet - filled in automagically */
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__u8 dest; /* destination ARCnet - 0 for broadcast */
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__u8 offset[2]; /* offset bytes (some weird semantics) */
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};
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#define ARC_HDR_SIZE 4
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/*
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* This is an ARCnet frame header, as seen by the kernel (and userspace,
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* when you do a raw packet capture).
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*/
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struct archdr {
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/* hardware requirements */
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struct arc_hardware hard;
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/* arcnet encapsulation-specific bits */
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union {
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struct arc_rfc1201 rfc1201;
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struct arc_rfc1051 rfc1051;
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struct arc_eth_encap eth_encap;
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struct arc_cap cap;
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__u8 raw[0]; /* 508 bytes */
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} soft;
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};
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#endif /* _LINUX_IF_ARCNET_H */
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