2007-01-12 10:20:11 +01:00
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/*
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* Copyright (C) 2007 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <string.h>
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2007-01-19 02:13:12 +01:00
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#include <stdio.h>
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2007-06-28 00:20:36 +02:00
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#include <errno.h>
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2007-01-12 10:20:11 +01:00
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#include <gpxe/netdevice.h>
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2007-06-28 16:22:20 +02:00
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#include <gpxe/dhcp.h>
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#include <gpxe/monojob.h>
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#include <gpxe/process.h>
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2007-01-15 09:49:10 +01:00
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#include <usr/ifmgmt.h>
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2007-01-12 10:20:11 +01:00
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#include <usr/dhcpmgmt.h>
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/** @file
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*
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* DHCP management
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*
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*/
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2007-06-28 16:22:20 +02:00
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static int dhcp_success ( struct net_device *netdev,
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struct dhcp_option_block *options ) {
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2007-11-21 05:48:18 +01:00
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DBGC ( options, "DHCP client registering options %p\n", options );
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2007-06-28 16:22:20 +02:00
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register_dhcp_options ( options );
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return dhcp_configure_netdev ( netdev, options );
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}
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2007-04-09 20:01:43 +02:00
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2007-01-12 10:20:11 +01:00
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int dhcp ( struct net_device *netdev ) {
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2007-11-21 05:48:18 +01:00
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struct dhcp_option_block *options;
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struct dhcp_option_block *tmp;
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2007-01-12 10:20:11 +01:00
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int rc;
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2007-01-12 10:53:28 +01:00
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/* Check we can open the interface first */
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if ( ( rc = ifopen ( netdev ) ) != 0 )
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return rc;
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2007-11-21 05:48:18 +01:00
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/* Unregister any option blocks acquired via DHCP */
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list_for_each_entry_safe ( options, tmp, &dhcp_option_blocks, list ) {
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/* Skip static option blocks (e.g. from NVS) */
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if ( find_dhcp_option ( options, DHCP_MESSAGE_TYPE ) ) {
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DBGC ( options, "DHCP client unregistering options "
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"%p\n", options );
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unregister_dhcp_options ( options );
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}
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2007-01-12 10:20:11 +01:00
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}
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2007-06-28 16:22:20 +02:00
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/* Perform DHCP */
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2007-08-03 13:49:21 +02:00
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printf ( "DHCP (%s %s)", netdev->name, netdev_hwaddr ( netdev ) );
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2007-06-28 16:22:20 +02:00
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if ( ( rc = start_dhcp ( &monojob, netdev, dhcp_success ) ) == 0 )
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2007-08-03 13:49:21 +02:00
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rc = monojob_wait ( "" );
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2007-01-12 10:20:11 +01:00
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2007-06-28 16:22:20 +02:00
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return rc;
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2007-01-12 10:20:11 +01:00
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}
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