mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
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83 lines
3.4 KiB
C++
83 lines
3.4 KiB
C++
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/*-
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* Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from the Stanford/CMU enet packet filter,
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* (net/enet.c) distributed as part of 4.3BSD, and code contributed
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* to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
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* Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lib_pcap_can_socketcan_h
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#define lib_pcap_can_socketcan_h
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#include <pcap/pcap-inttypes.h>
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/*
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* SocketCAN header for CAN and CAN FD frames, as per
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* Documentation/networking/can.rst in the Linux source.
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*/
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typedef struct {
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uint32_t can_id;
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uint8_t payload_length;
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uint8_t fd_flags;
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uint8_t reserved1;
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uint8_t reserved2;
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} pcap_can_socketcan_hdr;
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/* Bits in the fd_flags field */
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#define CANFD_BRS 0x01 /* bit rate switch (second bitrate for payload data) */
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#define CANFD_ESI 0x02 /* error state indicator of the transmitting node */
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#define CANFD_FDF 0x04 /* mark CAN FD for dual use of CAN format */
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/*
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* SocketCAN header for CAN XL frames, as per Linux's can.h header.
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* This is different from pcap_can_socketcan_hdr; the flags field
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* overlaps with the payload_length field in pcap_can_socketcan_hdr -
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* the payload_length field in a CAN or CAN FD frame never has the
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* 0x80 bit set, and the flags field in a CAN XL frame always has
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* it set, allowing code reading the frame to determine whether
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* it's CAN XL or not.
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*/
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typedef struct {
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uint32_t priority_vcid;
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uint8_t flags;
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uint8_t sdu_type;
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uint16_t payload_length;
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uint32_t acceptance_field;
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} pcap_can_socketcan_xl_hdr;
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/* Bits in the flags field */
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#define CANXL_SEC 0x01 /* Simple Extended Context */
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#define CANXL_XLF 0x80 /* mark to distinguish CAN XL from CAN/CAN FD frames */
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#endif
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