diff options
Diffstat (limited to 'include/uapi/linux/if_fddi.h')
| -rw-r--r-- | include/uapi/linux/if_fddi.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/include/uapi/linux/if_fddi.h b/include/uapi/linux/if_fddi.h new file mode 100644 index 000000000..1086cd9f6 --- /dev/null +++ b/include/uapi/linux/if_fddi.h @@ -0,0 +1,106 @@ +/* + * 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 _UAPI_LINUX_IF_FDDI_H +#define _UAPI_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 /* _UAPI_LINUX_IF_FDDI_H */ |