701181ac1d
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
/*
|
|
* INET An implementation of the TCP/IP protocol suite for the LINUX
|
|
* operating system. INET is implemented using the BSD Socket
|
|
* interface as the means of communication with the user level.
|
|
*
|
|
* Global definitions for the ARCnet interface.
|
|
*
|
|
* Authors: David Woodhouse and Avery Pennarun
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef _LINUX_IF_ARCNET_H
|
|
#define _LINUX_IF_ARCNET_H
|
|
|
|
#include <linux/if_ether.h>
|
|
|
|
|
|
/*
|
|
* These are the defined ARCnet Protocol ID's.
|
|
*/
|
|
|
|
/* CAP mode */
|
|
/* No macro but uses 1-8 */
|
|
|
|
/* RFC1201 Protocol ID's */
|
|
#define ARC_P_IP 212 /* 0xD4 */
|
|
#define ARC_P_IPV6 196 /* 0xC4: RFC2497 */
|
|
#define ARC_P_ARP 213 /* 0xD5 */
|
|
#define ARC_P_RARP 214 /* 0xD6 */
|
|
#define ARC_P_IPX 250 /* 0xFA */
|
|
#define ARC_P_NOVELL_EC 236 /* 0xEC */
|
|
|
|
/* Old RFC1051 Protocol ID's */
|
|
#define ARC_P_IP_RFC1051 240 /* 0xF0 */
|
|
#define ARC_P_ARP_RFC1051 241 /* 0xF1 */
|
|
|
|
/* MS LanMan/WfWg "NDIS" encapsulation */
|
|
#define ARC_P_ETHER 232 /* 0xE8 */
|
|
|
|
/* Unsupported/indirectly supported protocols */
|
|
#define ARC_P_DATAPOINT_BOOT 0 /* very old Datapoint equipment */
|
|
#define ARC_P_DATAPOINT_MOUNT 1
|
|
#define ARC_P_POWERLAN_BEACON 8 /* Probably ATA-Netbios related */
|
|
#define ARC_P_POWERLAN_BEACON2 243 /* 0xF3 */
|
|
#define ARC_P_LANSOFT 251 /* 0xFB - what is this? */
|
|
#define ARC_P_ATALK 0xDD
|
|
|
|
/* Hardware address length */
|
|
#define ARCNET_ALEN 1
|
|
|
|
/*
|
|
* The RFC1201-specific components of an arcnet packet header.
|
|
*/
|
|
struct arc_rfc1201
|
|
{
|
|
uint8_t proto; /* protocol ID field - varies */
|
|
uint8_t split_flag; /* for use with split packets */
|
|
__be16 sequence; /* sequence number */
|
|
uint8_t payload[0]; /* space remaining in packet (504 bytes)*/
|
|
};
|
|
#define RFC1201_HDR_SIZE 4
|
|
|
|
|
|
/*
|
|
* The RFC1051-specific components.
|
|
*/
|
|
struct arc_rfc1051
|
|
{
|
|
uint8_t proto; /* ARC_P_RFC1051_ARP/RFC1051_IP */
|
|
uint8_t payload[0]; /* 507 bytes */
|
|
};
|
|
#define RFC1051_HDR_SIZE 1
|
|
|
|
|
|
/*
|
|
* The ethernet-encap-specific components. We have a real ethernet header
|
|
* and some data.
|
|
*/
|
|
struct arc_eth_encap
|
|
{
|
|
uint8_t proto; /* Always ARC_P_ETHER */
|
|
struct ethhdr eth; /* standard ethernet header (yuck!) */
|
|
uint8_t payload[0]; /* 493 bytes */
|
|
};
|
|
#define ETH_ENCAP_HDR_SIZE 14
|
|
|
|
|
|
struct arc_cap
|
|
{
|
|
uint8_t proto;
|
|
uint8_t cookie[sizeof(int)]; /* Actually NOT sent over the network */
|
|
union {
|
|
uint8_t ack;
|
|
uint8_t raw[0]; /* 507 bytes */
|
|
} mes;
|
|
};
|
|
|
|
/*
|
|
* The data needed by the actual arcnet hardware.
|
|
*
|
|
* Now, in the real arcnet hardware, the third and fourth bytes are the
|
|
* 'offset' specification instead of the length, and the soft data is at
|
|
* the _end_ of the 512-byte buffer. We hide this complexity inside the
|
|
* driver.
|
|
*/
|
|
struct arc_hardware
|
|
{
|
|
uint8_t source, /* source ARCnet - filled in automagically */
|
|
dest, /* destination ARCnet - 0 for broadcast */
|
|
offset[2]; /* offset bytes (some weird semantics) */
|
|
};
|
|
#define ARC_HDR_SIZE 4
|
|
|
|
/*
|
|
* This is an ARCnet frame header, as seen by the kernel (and userspace,
|
|
* when you do a raw packet capture).
|
|
*/
|
|
struct archdr
|
|
{
|
|
/* hardware requirements */
|
|
struct arc_hardware hard;
|
|
|
|
/* arcnet encapsulation-specific bits */
|
|
union {
|
|
struct arc_rfc1201 rfc1201;
|
|
struct arc_rfc1051 rfc1051;
|
|
struct arc_eth_encap eth_encap;
|
|
struct arc_cap cap;
|
|
uint8_t raw[0]; /* 508 bytes */
|
|
} soft;
|
|
};
|
|
|
|
#endif /* _LINUX_IF_ARCNET_H */
|