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41 lines
1.7 KiB
C
41 lines
1.7 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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/*! \file */
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#ifndef __INC_ETHERNET_H
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#define __INC_ETHERNET_H
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#define ETHERNET_ADDRESS_LENGTH 6 /* Ethernet Address Length */
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#define ETHERNET_HEADER_SIZE 14 /* Ethernet Header Length */
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#define LLC_HEADER_SIZE 6 /* LLC Header Length */
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#define TYPE_LENGTH_FIELD_SIZE 2 /* Type/Length Size */
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#define MINIMUM_ETHERNET_PACKET_SIZE 60 /* Min Ethernet Packet Size */
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#define MAXIMUM_ETHERNET_PACKET_SIZE 1514 /* Max Ethernet Packet Size */
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/* Is Multicast Address? */
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#define RT_ETH_IS_MULTICAST(_addr) ((((u8 *)(_addr))[0]&0x01) != 0)
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#define RT_ETH_IS_BROADCAST(_addr) ( \
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((u8 *)(_addr))[0] == 0xff && \
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((u8 *)(_addr))[1] == 0xff && \
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((u8 *)(_addr))[2] == 0xff && \
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((u8 *)(_addr))[3] == 0xff && \
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((u8 *)(_addr))[4] == 0xff && \
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((u8 *)(_addr))[5] == 0xff) /* Is Broadcast Address? */
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#endif /* #ifndef __INC_ETHERNET_H */
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