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8821cu-20210916/include/ethernet.h
2022-11-17 08:26:57 -06:00

37 lines
1.5 KiB
C

/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*****************************************************************************/
/*! \file */
#ifndef __INC_ETHERNET_H
#define __INC_ETHERNET_H
#define ETHERNET_ADDRESS_LENGTH 6 /* !< Ethernet Address Length */
#define ETHERNET_HEADER_SIZE 14 /* !< Ethernet Header Length */
#define LLC_HEADER_SIZE 6 /* !< LLC Header Length */
#define TYPE_LENGTH_FIELD_SIZE 2 /* !< Type/Length Size */
#define MINIMUM_ETHERNET_PACKET_SIZE 60 /* !< Minimum Ethernet Packet Size */
#define MAXIMUM_ETHERNET_PACKET_SIZE 1514 /* !< Maximum Ethernet Packet Size */
#define RT_ETH_IS_MULTICAST(_pAddr) ((((u8 *)(_pAddr))[0]&0x01) != 0) /* !< Is Multicast Address? */
#define RT_ETH_IS_BROADCAST(_pAddr) (\
((u8 *)(_pAddr))[0] == 0xff && \
((u8 *)(_pAddr))[1] == 0xff && \
((u8 *)(_pAddr))[2] == 0xff && \
((u8 *)(_pAddr))[3] == 0xff && \
((u8 *)(_pAddr))[4] == 0xff && \
((u8 *)(_pAddr))[5] == 0xff) /* !< Is Broadcast Address? */
#endif /* #ifndef __INC_ETHERNET_H */