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 HIPPI interface. |
8 | * |
9 | * Version: @(#)if_hippi.h 1.0.0 05/26/97 |
10 | * |
11 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
12 | * Donald Becker, <becker@super.org> |
13 | * Alan Cox, <alan@lxorguk.ukuu.org.uk> |
14 | * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk> |
15 | * Jes Sorensen, <Jes.Sorensen@cern.ch> |
16 | * |
17 | * This program is free software; you can redistribute it and/or |
18 | * modify it under the terms of the GNU General Public License |
19 | * as published by the Free Software Foundation; either version |
20 | * 2 of the License, or (at your option) any later version. |
21 | */ |
22 | |
23 | #ifndef _LINUX_IF_HIPPI_H |
24 | #define _LINUX_IF_HIPPI_H |
25 | |
26 | #include <linux/types.h> |
27 | #include <asm/byteorder.h> |
28 | |
29 | /* |
30 | * HIPPI magic constants. |
31 | */ |
32 | |
33 | #define HIPPI_ALEN 6 /* Bytes in one HIPPI hw-addr */ |
34 | #define HIPPI_HLEN sizeof(struct hippi_hdr) |
35 | #define HIPPI_ZLEN 0 /* Min. bytes in frame without FCS */ |
36 | #define HIPPI_DATA_LEN 65280 /* Max. bytes in payload */ |
37 | #define HIPPI_FRAME_LEN (HIPPI_DATA_LEN + HIPPI_HLEN) |
38 | /* Max. bytes in frame without FCS */ |
39 | |
40 | /* |
41 | * Define LLC and SNAP constants. |
42 | */ |
43 | #define HIPPI_EXTENDED_SAP 0xAA |
44 | #define HIPPI_UI_CMD 0x03 |
45 | |
46 | |
47 | /* |
48 | * Do we need to list some sort of ID's here? |
49 | */ |
50 | |
51 | /* |
52 | * HIPPI statistics collection data. |
53 | */ |
54 | |
55 | struct hipnet_statistics { |
56 | int rx_packets; /* total packets received */ |
57 | int tx_packets; /* total packets transmitted */ |
58 | int rx_errors; /* bad packets received */ |
59 | int tx_errors; /* packet transmit problems */ |
60 | int rx_dropped; /* no space in linux buffers */ |
61 | int tx_dropped; /* no space available in linux */ |
62 | |
63 | /* detailed rx_errors: */ |
64 | int rx_length_errors; |
65 | int rx_over_errors; /* receiver ring buff overflow */ |
66 | int rx_crc_errors; /* recved pkt with crc error */ |
67 | int rx_frame_errors; /* recv'd frame alignment error */ |
68 | int rx_fifo_errors; /* recv'r fifo overrun */ |
69 | int rx_missed_errors; /* receiver missed packet */ |
70 | |
71 | /* detailed tx_errors */ |
72 | int tx_aborted_errors; |
73 | int tx_carrier_errors; |
74 | int tx_fifo_errors; |
75 | int tx_heartbeat_errors; |
76 | int tx_window_errors; |
77 | }; |
78 | |
79 | |
80 | struct hippi_fp_hdr { |
81 | #if 0 |
82 | __u8 ulp; /* must contain 4 */ |
83 | #if defined (__BIG_ENDIAN_BITFIELD) |
84 | __u8 d1_data_present:1; /* must be 1 */ |
85 | __u8 start_d2_burst_boundary:1; /* must be zero */ |
86 | __u8 reserved:6; /* must be zero */ |
87 | #if 0 |
88 | __u16 reserved1:5; |
89 | __u16 d1_area_size:8; /* must be 3 */ |
90 | __u16 d2_offset:3; /* must be zero */ |
91 | #endif |
92 | #elif defined(__LITTLE_ENDIAN_BITFIELD) |
93 | __u8 reserved:6; /* must be zero */ |
94 | __u8 start_d2_burst_boundary:1; /* must be zero */ |
95 | __u8 d1_data_present:1; /* must be 1 */ |
96 | #if 0 |
97 | __u16 d2_offset:3; /* must be zero */ |
98 | __u16 d1_area_size:8; /* must be 3 */ |
99 | __u16 reserved1:5; /* must be zero */ |
100 | #endif |
101 | #else |
102 | #error "Please fix <asm/byteorder.h>" |
103 | #endif |
104 | #else |
105 | __be32 fixed; |
106 | #endif |
107 | __be32 d2_size; |
108 | } __attribute__((packed)); |
109 | |
110 | struct hippi_le_hdr { |
111 | #if defined (__BIG_ENDIAN_BITFIELD) |
112 | __u8 fc:3; |
113 | __u8 double_wide:1; |
114 | __u8 message_type:4; |
115 | #elif defined(__LITTLE_ENDIAN_BITFIELD) |
116 | __u8 message_type:4; |
117 | __u8 double_wide:1; |
118 | __u8 fc:3; |
119 | #endif |
120 | __u8 dest_switch_addr[3]; |
121 | #if defined (__BIG_ENDIAN_BITFIELD) |
122 | __u8 dest_addr_type:4, |
123 | src_addr_type:4; |
124 | #elif defined(__LITTLE_ENDIAN_BITFIELD) |
125 | __u8 src_addr_type:4, |
126 | dest_addr_type:4; |
127 | #endif |
128 | __u8 src_switch_addr[3]; |
129 | __u16 reserved; |
130 | __u8 daddr[HIPPI_ALEN]; |
131 | __u16 locally_administered; |
132 | __u8 saddr[HIPPI_ALEN]; |
133 | } __attribute__((packed)); |
134 | |
135 | #define HIPPI_OUI_LEN 3 |
136 | /* |
137 | * Looks like the dsap and ssap fields have been swapped by mistake in |
138 | * RFC 2067 "IP over HIPPI". |
139 | */ |
140 | struct hippi_snap_hdr { |
141 | __u8 dsap; /* always 0xAA */ |
142 | __u8 ssap; /* always 0xAA */ |
143 | __u8 ctrl; /* always 0x03 */ |
144 | __u8 oui[HIPPI_OUI_LEN]; /* organizational universal id (zero)*/ |
145 | __be16 ethertype; /* packet type ID field */ |
146 | } __attribute__((packed)); |
147 | |
148 | struct hippi_hdr { |
149 | struct hippi_fp_hdr fp; |
150 | struct hippi_le_hdr le; |
151 | struct hippi_snap_hdr snap; |
152 | } __attribute__((packed)); |
153 | |
154 | #endif /* _LINUX_IF_HIPPI_H */ |
155 | |