1 /* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
2 /*
3 * linux/can/raw.h
4 *
5 * Definitions for raw CAN sockets
6 *
7 * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
8 * Urs Thuermann <urs.thuermann@volkswagen.de>
9 * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of Volkswagen nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * Alternatively, provided that this notice is retained in full, this
25 * software may be distributed under the terms of the GNU General
26 * Public License ("GPL") version 2, in which case the provisions of the
27 * GPL apply INSTEAD OF those given above.
28 *
29 * The provided data structures and external interfaces from this code
30 * are not restricted to be used by modules with a GPL compatible license.
31 *
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
37 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
38 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
39 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
40 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
41 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
42 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
43 * DAMAGE.
44 */
45
46 #ifndef _UAPI_CAN_RAW_H
47 #define _UAPI_CAN_RAW_H
48
49 #include <linux/can.h>
50
51 #define SOL_CAN_RAW (SOL_CAN_BASE + CAN_RAW)
52 #define CAN_RAW_FILTER_MAX 512 /* maximum number of can_filter set via setsockopt() */
53
54 enum {
55 SCM_CAN_RAW_ERRQUEUE = 1,
56 };
57
58 /* for socket options affecting the socket (not the global system) */
59
60 enum {
61 CAN_RAW_FILTER = 1, /* set 0 .. n can_filter(s) */
62 CAN_RAW_ERR_FILTER, /* set filter for error frames */
63 CAN_RAW_LOOPBACK, /* local loopback (default:on) */
64 CAN_RAW_RECV_OWN_MSGS, /* receive my own msgs (default:off) */
65 CAN_RAW_FD_FRAMES, /* allow CAN FD frames (default:off) */
66 CAN_RAW_JOIN_FILTERS, /* all filters must match to trigger */
67 CAN_RAW_XL_FRAMES, /* allow CAN XL frames (default:off) */
68 CAN_RAW_XL_VCID_OPTS, /* CAN XL VCID configuration options */
69 };
70
71 /* configuration for CAN XL virtual CAN identifier (VCID) handling */
72 struct can_raw_vcid_options {
73
74 __u8 flags; /* flags for vcid (filter) behaviour */
75 __u8 tx_vcid; /* VCID value set into canxl_frame.prio */
76 __u8 rx_vcid; /* VCID value for VCID filter */
77 __u8 rx_vcid_mask; /* VCID mask for VCID filter */
78
79 };
80
81 /* can_raw_vcid_options.flags for CAN XL virtual CAN identifier handling */
82 #define CAN_RAW_XL_VCID_TX_SET 0x01
83 #define CAN_RAW_XL_VCID_TX_PASS 0x02
84 #define CAN_RAW_XL_VCID_RX_FILTER 0x04
85
86 #endif /* !_UAPI_CAN_RAW_H */
87
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