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1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
---|---|
2 | /* |
3 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
4 | * operating system. INET is implemented using the BSD Socket |
5 | * interface as the means of communication with the user level. |
6 | * |
7 | * Global definitions for the ANSI FDDI interface. |
8 | * |
9 | * Version: @(#)if_fddi.h 1.0.2 Sep 29 2004 |
10 | * |
11 | * Author: Lawrence V. Stefani, <stefani@lkg.dec.com> |
12 | * |
13 | * if_fddi.h is based on previous if_ether.h and if_tr.h work by |
14 | * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
15 | * Donald Becker, <becker@super.org> |
16 | * Alan Cox, <alan@lxorguk.ukuu.org.uk> |
17 | * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk> |
18 | * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be> |
19 | * |
20 | * This program is free software; you can redistribute it and/or |
21 | * modify it under the terms of the GNU General Public License |
22 | * as published by the Free Software Foundation; either version |
23 | * 2 of the License, or (at your option) any later version. |
24 | */ |
25 | #ifndef _LINUX_IF_FDDI_H |
26 | #define _LINUX_IF_FDDI_H |
27 | |
28 | #include <linux/types.h> |
29 | |
30 | /* |
31 | * Define max and min legal sizes. The frame sizes do not include |
32 | * 4 byte FCS/CRC (frame check sequence). |
33 | */ |
34 | #define FDDI_K_ALEN 6 /* Octets in one FDDI address */ |
35 | #define FDDI_K_8022_HLEN 16 /* Total octets in 802.2 header */ |
36 | #define FDDI_K_SNAP_HLEN 21 /* Total octets in 802.2 SNAP header */ |
37 | #define FDDI_K_8022_ZLEN 16 /* Min octets in 802.2 frame sans |
38 | FCS */ |
39 | #define FDDI_K_SNAP_ZLEN 21 /* Min octets in 802.2 SNAP frame sans |
40 | FCS */ |
41 | #define FDDI_K_8022_DLEN 4475 /* Max octets in 802.2 payload */ |
42 | #define FDDI_K_SNAP_DLEN 4470 /* Max octets in 802.2 SNAP payload */ |
43 | #define FDDI_K_LLC_ZLEN 13 /* Min octets in LLC frame sans FCS */ |
44 | #define FDDI_K_LLC_LEN 4491 /* Max octets in LLC frame sans FCS */ |
45 | #define FDDI_K_OUI_LEN 3 /* Octets in OUI in 802.2 SNAP |
46 | header */ |
47 | |
48 | /* Define FDDI Frame Control (FC) Byte values */ |
49 | #define FDDI_FC_K_VOID 0x00 |
50 | #define FDDI_FC_K_NON_RESTRICTED_TOKEN 0x80 |
51 | #define FDDI_FC_K_RESTRICTED_TOKEN 0xC0 |
52 | #define FDDI_FC_K_SMT_MIN 0x41 |
53 | #define FDDI_FC_K_SMT_MAX 0x4F |
54 | #define FDDI_FC_K_MAC_MIN 0xC1 |
55 | #define FDDI_FC_K_MAC_MAX 0xCF |
56 | #define FDDI_FC_K_ASYNC_LLC_MIN 0x50 |
57 | #define FDDI_FC_K_ASYNC_LLC_DEF 0x54 |
58 | #define FDDI_FC_K_ASYNC_LLC_MAX 0x5F |
59 | #define FDDI_FC_K_SYNC_LLC_MIN 0xD0 |
60 | #define FDDI_FC_K_SYNC_LLC_MAX 0xD7 |
61 | #define FDDI_FC_K_IMPLEMENTOR_MIN 0x60 |
62 | #define FDDI_FC_K_IMPLEMENTOR_MAX 0x6F |
63 | #define FDDI_FC_K_RESERVED_MIN 0x70 |
64 | #define FDDI_FC_K_RESERVED_MAX 0x7F |
65 | |
66 | /* Define LLC and SNAP constants */ |
67 | #define FDDI_EXTENDED_SAP 0xAA |
68 | #define FDDI_UI_CMD 0x03 |
69 | |
70 | /* Define 802.2 Type 1 header */ |
71 | struct fddi_8022_1_hdr { |
72 | __u8 dsap; /* destination service access point */ |
73 | __u8 ssap; /* source service access point */ |
74 | __u8 ctrl; /* control byte #1 */ |
75 | } __attribute__((packed)); |
76 | |
77 | /* Define 802.2 Type 2 header */ |
78 | struct fddi_8022_2_hdr { |
79 | __u8 dsap; /* destination service access point */ |
80 | __u8 ssap; /* source service access point */ |
81 | __u8 ctrl_1; /* control byte #1 */ |
82 | __u8 ctrl_2; /* control byte #2 */ |
83 | } __attribute__((packed)); |
84 | |
85 | /* Define 802.2 SNAP header */ |
86 | struct fddi_snap_hdr { |
87 | __u8 dsap; /* always 0xAA */ |
88 | __u8 ssap; /* always 0xAA */ |
89 | __u8 ctrl; /* always 0x03 */ |
90 | __u8 oui[FDDI_K_OUI_LEN]; /* organizational universal id */ |
91 | __be16 ethertype; /* packet type ID field */ |
92 | } __attribute__((packed)); |
93 | |
94 | /* Define FDDI LLC frame header */ |
95 | struct fddihdr { |
96 | __u8 fc; /* frame control */ |
97 | __u8 daddr[FDDI_K_ALEN]; /* destination address */ |
98 | __u8 saddr[FDDI_K_ALEN]; /* source address */ |
99 | union { |
100 | struct fddi_8022_1_hdr llc_8022_1; |
101 | struct fddi_8022_2_hdr llc_8022_2; |
102 | struct fddi_snap_hdr llc_snap; |
103 | } hdr; |
104 | } __attribute__((packed)); |
105 | |
106 | |
107 | #endif /* _LINUX_IF_FDDI_H */ |
108 |
Warning: That file was not part of the compilation database. It may have many parsing errors.