mirror of https://github.com/ipxe/ipxe.git
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
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* Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <stdint.h>
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#include <ipxe/init.h>
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#include <ipxe/cachedhcp.h>
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#include <realmode.h>
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#include <pxe_api.h>
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/** @file
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*
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* Cached DHCP packet
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*
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*/
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/** Cached DHCPACK physical address
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*
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* This can be set by the prefix.
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*/
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uint32_t __bss16 ( cached_dhcpack_phys );
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#define cached_dhcpack_phys __use_data16 ( cached_dhcpack_phys )
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/** Colour for debug messages */
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#define colour &cached_dhcpack_phys
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/**
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* Cached DHCPACK initialisation function
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*
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*/
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static void cachedhcp_init ( void ) {
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int rc;
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/* Do nothing if no cached DHCPACK is present */
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if ( ! cached_dhcpack_phys ) {
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DBGC ( colour, "CACHEDHCP found no cached DHCPACK\n" );
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return;
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}
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/* Record cached DHCPACK */
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if ( ( rc = cachedhcp_record ( phys_to_user ( cached_dhcpack_phys ),
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sizeof ( BOOTPLAYER_t ) ) ) != 0 ) {
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DBGC ( colour, "CACHEDHCP could not record DHCPACK: %s\n",
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strerror ( rc ) );
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return;
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}
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/* Mark as consumed */
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cached_dhcpack_phys = 0;
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}
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/** Cached DHCPACK initialisation function */
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struct init_fn cachedhcp_init_fn __init_fn ( INIT_NORMAL ) = {
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.initialise = cachedhcp_init,
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};
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