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607ca46e97
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
/*
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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 ANSI FDDI interface.
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*
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* Version: @(#)if_fddi.h 1.0.2 Sep 29 2004
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*
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* Author: Lawrence V. Stefani, <stefani@lkg.dec.com>
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*
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* if_fddi.h is based on previous if_ether.h and if_tr.h work by
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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* Donald Becker, <becker@super.org>
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* Alan Cox, <alan@lxorguk.ukuu.org.uk>
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* Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
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* Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
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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 _UAPI_LINUX_IF_FDDI_H
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#define _UAPI_LINUX_IF_FDDI_H
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#include <linux/types.h>
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/*
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* Define max and min legal sizes. The frame sizes do not include
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* 4 byte FCS/CRC (frame check sequence).
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*/
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#define FDDI_K_ALEN 6 /* Octets in one FDDI address */
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#define FDDI_K_8022_HLEN 16 /* Total octets in 802.2 header */
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#define FDDI_K_SNAP_HLEN 21 /* Total octets in 802.2 SNAP header */
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#define FDDI_K_8022_ZLEN 16 /* Min octets in 802.2 frame sans FCS */
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#define FDDI_K_SNAP_ZLEN 21 /* Min octets in 802.2 SNAP frame sans FCS */
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#define FDDI_K_8022_DLEN 4475 /* Max octets in 802.2 payload */
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#define FDDI_K_SNAP_DLEN 4470 /* Max octets in 802.2 SNAP payload */
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#define FDDI_K_LLC_ZLEN 13 /* Min octets in LLC frame sans FCS */
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#define FDDI_K_LLC_LEN 4491 /* Max octets in LLC frame sans FCS */
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/* Define FDDI Frame Control (FC) Byte values */
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#define FDDI_FC_K_VOID 0x00
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#define FDDI_FC_K_NON_RESTRICTED_TOKEN 0x80
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#define FDDI_FC_K_RESTRICTED_TOKEN 0xC0
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#define FDDI_FC_K_SMT_MIN 0x41
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#define FDDI_FC_K_SMT_MAX 0x4F
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#define FDDI_FC_K_MAC_MIN 0xC1
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#define FDDI_FC_K_MAC_MAX 0xCF
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#define FDDI_FC_K_ASYNC_LLC_MIN 0x50
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#define FDDI_FC_K_ASYNC_LLC_DEF 0x54
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#define FDDI_FC_K_ASYNC_LLC_MAX 0x5F
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#define FDDI_FC_K_SYNC_LLC_MIN 0xD0
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#define FDDI_FC_K_SYNC_LLC_MAX 0xD7
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#define FDDI_FC_K_IMPLEMENTOR_MIN 0x60
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#define FDDI_FC_K_IMPLEMENTOR_MAX 0x6F
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#define FDDI_FC_K_RESERVED_MIN 0x70
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#define FDDI_FC_K_RESERVED_MAX 0x7F
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/* Define LLC and SNAP constants */
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#define FDDI_EXTENDED_SAP 0xAA
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#define FDDI_UI_CMD 0x03
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/* Define 802.2 Type 1 header */
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struct fddi_8022_1_hdr {
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__u8 dsap; /* destination service access point */
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__u8 ssap; /* source service access point */
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__u8 ctrl; /* control byte #1 */
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} __attribute__((packed));
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/* Define 802.2 Type 2 header */
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struct fddi_8022_2_hdr {
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__u8 dsap; /* destination service access point */
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__u8 ssap; /* source service access point */
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__u8 ctrl_1; /* control byte #1 */
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__u8 ctrl_2; /* control byte #2 */
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} __attribute__((packed));
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/* Define 802.2 SNAP header */
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#define FDDI_K_OUI_LEN 3
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struct fddi_snap_hdr {
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__u8 dsap; /* always 0xAA */
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__u8 ssap; /* always 0xAA */
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__u8 ctrl; /* always 0x03 */
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__u8 oui[FDDI_K_OUI_LEN]; /* organizational universal id */
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__be16 ethertype; /* packet type ID field */
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} __attribute__((packed));
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/* Define FDDI LLC frame header */
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struct fddihdr {
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__u8 fc; /* frame control */
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__u8 daddr[FDDI_K_ALEN]; /* destination address */
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__u8 saddr[FDDI_K_ALEN]; /* source address */
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union
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{
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struct fddi_8022_1_hdr llc_8022_1;
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struct fddi_8022_2_hdr llc_8022_2;
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struct fddi_snap_hdr llc_snap;
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} hdr;
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} __attribute__((packed));
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#endif /* _UAPI_LINUX_IF_FDDI_H */
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