154 lines
4.1 KiB
C
154 lines
4.1 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 HIPPI interface.
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*
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* Version: @(#)if_hippi.h 1.0.0 05/26/97
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*
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* Author: 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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* Jes Sorensen, <Jes.Sorensen@cern.ch>
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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_HIPPI_H
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#define _LINUX_IF_HIPPI_H
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#include <linux/types.h>
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#include <asm/byteorder.h>
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/*
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* HIPPI magic constants.
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*/
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#define HIPPI_ALEN 6 /* Bytes in one HIPPI hw-addr */
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#define HIPPI_HLEN sizeof(struct hippi_hdr)
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#define HIPPI_ZLEN 0 /* Min. bytes in frame without FCS */
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#define HIPPI_DATA_LEN 65280 /* Max. bytes in payload */
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#define HIPPI_FRAME_LEN (HIPPI_DATA_LEN + HIPPI_HLEN)
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/* Max. bytes in frame without FCS */
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/*
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* Define LLC and SNAP constants.
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*/
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#define HIPPI_EXTENDED_SAP 0xAA
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#define HIPPI_UI_CMD 0x03
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/*
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* Do we need to list some sort of ID's here?
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*/
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/*
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* HIPPI statistics collection data.
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*/
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struct hipnet_statistics {
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int rx_packets; /* total packets received */
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int tx_packets; /* total packets transmitted */
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int rx_errors; /* bad packets received */
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int tx_errors; /* packet transmit problems */
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int rx_dropped; /* no space in linux buffers */
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int tx_dropped; /* no space available in linux */
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/* detailed rx_errors: */
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int rx_length_errors;
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int rx_over_errors; /* receiver ring buff overflow */
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int rx_crc_errors; /* recved pkt with crc error */
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int rx_frame_errors; /* recv'd frame alignment error */
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int rx_fifo_errors; /* recv'r fifo overrun */
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int rx_missed_errors; /* receiver missed packet */
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/* detailed tx_errors */
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int tx_aborted_errors;
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int tx_carrier_errors;
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int tx_fifo_errors;
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int tx_heartbeat_errors;
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int tx_window_errors;
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};
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struct hippi_fp_hdr {
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#if 0
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__u8 ulp; /* must contain 4 */
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#if defined (__BIG_ENDIAN_BITFIELD)
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__u8 d1_data_present:1; /* must be 1 */
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__u8 start_d2_burst_boundary:1; /* must be zero */
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__u8 reserved:6; /* must be zero */
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#if 0
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__u16 reserved1:5;
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__u16 d1_area_size:8; /* must be 3 */
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__u16 d2_offset:3; /* must be zero */
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#endif
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#elif defined(__LITTLE_ENDIAN_BITFIELD)
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__u8 reserved:6; /* must be zero */
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__u8 start_d2_burst_boundary:1; /* must be zero */
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__u8 d1_data_present:1; /* must be 1 */
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#if 0
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__u16 d2_offset:3; /* must be zero */
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__u16 d1_area_size:8; /* must be 3 */
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__u16 reserved1:5; /* must be zero */
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#endif
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#else
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#error "Please fix <asm/byteorder.h>"
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#endif
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#else
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__be32 fixed;
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#endif
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__be32 d2_size;
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} __attribute__((packed));
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struct hippi_le_hdr {
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#if defined (__BIG_ENDIAN_BITFIELD)
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__u8 fc:3;
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__u8 double_wide:1;
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__u8 message_type:4;
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#elif defined(__LITTLE_ENDIAN_BITFIELD)
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__u8 message_type:4;
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__u8 double_wide:1;
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__u8 fc:3;
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#endif
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__u8 dest_switch_addr[3];
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#if defined (__BIG_ENDIAN_BITFIELD)
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__u8 dest_addr_type:4,
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src_addr_type:4;
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#elif defined(__LITTLE_ENDIAN_BITFIELD)
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__u8 src_addr_type:4,
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dest_addr_type:4;
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#endif
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__u8 src_switch_addr[3];
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__u16 reserved;
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__u8 daddr[HIPPI_ALEN];
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__u16 locally_administered;
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__u8 saddr[HIPPI_ALEN];
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} __attribute__((packed));
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#define HIPPI_OUI_LEN 3
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/*
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* Looks like the dsap and ssap fields have been swapped by mistake in
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* RFC 2067 "IP over HIPPI".
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*/
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struct hippi_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[HIPPI_OUI_LEN]; /* organizational universal id (zero)*/
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__be16 ethertype; /* packet type ID field */
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} __attribute__((packed));
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struct hippi_hdr {
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struct hippi_fp_hdr fp;
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struct hippi_le_hdr le;
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struct hippi_snap_hdr snap;
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} __attribute__((packed));
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#endif /* _LINUX_IF_HIPPI_H */
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