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/*
* Copyright (C) 2007 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <gpxe/netdevice.h>
#include <gpxe/dhcp.h>
#include <gpxe/monojob.h>
#include <gpxe/process.h>
#include <usr/ifmgmt.h>
#include <usr/dhcpmgmt.h>
/** @file
*
* DHCP management
*
*/
static int dhcp_success ( struct net_device *netdev __unused,
struct dhcp_option_block *options ) {
DBGC ( options, "DHCP client registering options %p\n", options );
register_dhcp_options ( options );
return 0;
}
int dhcp ( struct net_device *netdev ) {
struct dhcp_option_block *options;
struct dhcp_option_block *tmp;
int rc;
/* Check we can open the interface first */
if ( ( rc = ifopen ( netdev ) ) != 0 )
return rc;
/* Unregister any option blocks acquired via DHCP */
list_for_each_entry_safe ( options, tmp, &dhcp_option_blocks, list ) {
/* Skip static option blocks (e.g. from NVS) */
if ( find_dhcp_option ( options, DHCP_MESSAGE_TYPE ) ) {
DBGC ( options, "DHCP client unregistering options "
"%p\n", options );
unregister_dhcp_options ( options );
}
}
/* Perform DHCP */
printf ( "DHCP (%s %s)", netdev->name, netdev_hwaddr ( netdev ) );
if ( ( rc = start_dhcp ( &monojob, netdev, dhcp_success ) ) == 0 )
rc = monojob_wait ( "" );
return rc;
}
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