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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2010,2011 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_NET_ARP_HEADER
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#define GRUB_NET_ARP_HEADER 1
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#include <grub/misc.h>
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#include <grub/net.h>
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enum
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{
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/* IANA ARP constant to define hardware type as ethernet. */
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GRUB_NET_ARPHRD_ETHERNET = 1
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};
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/* ARP header operation codes */
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#define ARP_REQUEST 1
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#define ARP_REPLY 2
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struct arp_entry {
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int avail;
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grub_net_network_level_address_t nl_address;
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grub_net_link_level_address_t ll_address;
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};
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struct arphdr {
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grub_uint16_t hrd;
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grub_uint16_t pro;
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grub_uint8_t hln;
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grub_uint8_t pln;
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grub_uint16_t op;
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} __attribute__ ((packed));
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extern grub_err_t grub_net_arp_receive(struct grub_net_buff *nb);
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extern grub_err_t grub_net_arp_resolve(struct grub_net_network_level_interface *inf,
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const grub_net_network_level_address_t *addr,
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grub_net_link_level_address_t *hw_addr);
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#endif
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