--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * 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 ANSI FDDI interface.
+ *
+ * Version: @(#)if_fddi.h 1.0.2 Sep 29 2004
+ *
+ * Author: Lawrence V. Stefani, <stefani@lkg.dec.com>
+ *
+ * if_fddi.h is based on previous if_ether.h and if_tr.h work by
+ * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ * Donald Becker, <becker@super.org>
+ * Alan Cox, <alan@lxorguk.ukuu.org.uk>
+ * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
+ * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
+ *
+ * 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_FDDI_H
+#define _LINUX_IF_FDDI_H
+
+#include <linux/types.h>
+
+/*
+ * Define max and min legal sizes. The frame sizes do not include
+ * 4 byte FCS/CRC (frame check sequence).
+ */
+#define FDDI_K_ALEN 6 /* Octets in one FDDI address */
+#define FDDI_K_8022_HLEN 16 /* Total octets in 802.2 header */
+#define FDDI_K_SNAP_HLEN 21 /* Total octets in 802.2 SNAP header */
+#define FDDI_K_8022_ZLEN 16 /* Min octets in 802.2 frame sans
+ FCS */
+#define FDDI_K_SNAP_ZLEN 21 /* Min octets in 802.2 SNAP frame sans
+ FCS */
+#define FDDI_K_8022_DLEN 4475 /* Max octets in 802.2 payload */
+#define FDDI_K_SNAP_DLEN 4470 /* Max octets in 802.2 SNAP payload */
+#define FDDI_K_LLC_ZLEN 13 /* Min octets in LLC frame sans FCS */
+#define FDDI_K_LLC_LEN 4491 /* Max octets in LLC frame sans FCS */
+#define FDDI_K_OUI_LEN 3 /* Octets in OUI in 802.2 SNAP
+ header */
+
+/* Define FDDI Frame Control (FC) Byte values */
+#define FDDI_FC_K_VOID 0x00
+#define FDDI_FC_K_NON_RESTRICTED_TOKEN 0x80
+#define FDDI_FC_K_RESTRICTED_TOKEN 0xC0
+#define FDDI_FC_K_SMT_MIN 0x41
+#define FDDI_FC_K_SMT_MAX 0x4F
+#define FDDI_FC_K_MAC_MIN 0xC1
+#define FDDI_FC_K_MAC_MAX 0xCF
+#define FDDI_FC_K_ASYNC_LLC_MIN 0x50
+#define FDDI_FC_K_ASYNC_LLC_DEF 0x54
+#define FDDI_FC_K_ASYNC_LLC_MAX 0x5F
+#define FDDI_FC_K_SYNC_LLC_MIN 0xD0
+#define FDDI_FC_K_SYNC_LLC_MAX 0xD7
+#define FDDI_FC_K_IMPLEMENTOR_MIN 0x60
+#define FDDI_FC_K_IMPLEMENTOR_MAX 0x6F
+#define FDDI_FC_K_RESERVED_MIN 0x70
+#define FDDI_FC_K_RESERVED_MAX 0x7F
+
+/* Define LLC and SNAP constants */
+#define FDDI_EXTENDED_SAP 0xAA
+#define FDDI_UI_CMD 0x03
+
+/* Define 802.2 Type 1 header */
+struct fddi_8022_1_hdr {
+ __u8 dsap; /* destination service access point */
+ __u8 ssap; /* source service access point */
+ __u8 ctrl; /* control byte #1 */
+} __attribute__((packed));
+
+/* Define 802.2 Type 2 header */
+struct fddi_8022_2_hdr {
+ __u8 dsap; /* destination service access point */
+ __u8 ssap; /* source service access point */
+ __u8 ctrl_1; /* control byte #1 */
+ __u8 ctrl_2; /* control byte #2 */
+} __attribute__((packed));
+
+/* Define 802.2 SNAP header */
+struct fddi_snap_hdr {
+ __u8 dsap; /* always 0xAA */
+ __u8 ssap; /* always 0xAA */
+ __u8 ctrl; /* always 0x03 */
+ __u8 oui[FDDI_K_OUI_LEN]; /* organizational universal id */
+ __be16 ethertype; /* packet type ID field */
+} __attribute__((packed));
+
+/* Define FDDI LLC frame header */
+struct fddihdr {
+ __u8 fc; /* frame control */
+ __u8 daddr[FDDI_K_ALEN]; /* destination address */
+ __u8 saddr[FDDI_K_ALEN]; /* source address */
+ union {
+ struct fddi_8022_1_hdr llc_8022_1;
+ struct fddi_8022_2_hdr llc_8022_2;
+ struct fddi_snap_hdr llc_snap;
+ } hdr;
+} __attribute__((packed));
+
+
+#endif /* _LINUX_IF_FDDI_H */
projects / cross.git / blobdiff