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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 struct dhcp_option_block *dhcp_options = NULL;
static int dhcp_success ( struct net_device *netdev,
struct dhcp_option_block *options ) {
dhcp_options = dhcpopt_get ( options );
register_dhcp_options ( options );
return dhcp_configure_netdev ( netdev, options );
}
int dhcp ( struct net_device *netdev ) {
int rc;
/* Check we can open the interface first */
if ( ( rc = ifopen ( netdev ) ) != 0 )
return rc;
/* Unregister any previously acquired options */
if ( dhcp_options ) {
unregister_dhcp_options ( dhcp_options );
dhcpopt_put ( dhcp_options );
dhcp_options = NULL;
}
/* Perform DHCP */
printf ( "DHCP (%s %s)...", netdev->name, netdev_hwaddr ( netdev ) );
if ( ( rc = start_dhcp ( &monojob, netdev, dhcp_success ) ) == 0 )
rc = monojob_wait();
if ( rc == 0 ) {
printf ( "done\n" );
} else {
printf ( "failed (%s)\n", strerror ( rc ) );
}
return rc;
}
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