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/*
* Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <ipxe/init.h>
#include <ipxe/cachedhcp.h>
#include <realmode.h>
#include <pxe_api.h>
/** @file
*
* Cached DHCP packet
*
*/
/** Cached DHCPACK physical address
*
* This can be set by the prefix.
*/
uint32_t __bss16 ( cached_dhcpack_phys );
#define cached_dhcpack_phys __use_data16 ( cached_dhcpack_phys )
/** Colour for debug messages */
#define colour &cached_dhcpack_phys
/**
* Cached DHCPACK initialisation function
*
*/
static void cachedhcp_init ( void ) {
int rc;
/* Do nothing if no cached DHCPACK is present */
if ( ! cached_dhcpack_phys ) {
DBGC ( colour, "CACHEDHCP found no cached DHCPACK\n" );
return;
}
/* Record cached DHCPACK */
if ( ( rc = cachedhcp_record ( &cached_dhcpack, 0,
phys_to_user ( cached_dhcpack_phys ),
sizeof ( BOOTPLAYER_t ) ) ) != 0 ) {
DBGC ( colour, "CACHEDHCP could not record DHCPACK: %s\n",
strerror ( rc ) );
return;
}
/* Mark as consumed */
cached_dhcpack_phys = 0;
}
/** Cached DHCPACK initialisation function */
struct init_fn cachedhcp_init_fn __init_fn ( INIT_NORMAL ) = {
.initialise = cachedhcp_init,
};
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