1/*
2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19FILE_LICENCE ( GPL2_OR_LATER );
20
21#include <string.h>
22#include <stdio.h>
23#include <errno.h>
24#include <gpxe/netdevice.h>
25#include <gpxe/dhcp.h>
26#include <gpxe/monojob.h>
27#include <gpxe/process.h>
28#include <usr/ifmgmt.h>
29#include <usr/dhcpmgmt.h>
30
31#define LINK_WAIT_MS	15000
32
33/** @file
34 *
35 * DHCP management
36 *
37 */
38
39int dhcp ( struct net_device *netdev ) {
40	uint8_t *chaddr;
41	uint8_t hlen;
42	uint16_t flags;
43	int rc;
44
45	/* Check we can open the interface first */
46	if ( ( rc = ifopen ( netdev ) ) != 0 )
47		return rc;
48
49	/* Wait for link-up */
50	if ( ( rc = iflinkwait ( netdev, LINK_WAIT_MS ) ) != 0 )
51		return rc;
52
53	/* Perform DHCP */
54	chaddr = dhcp_chaddr ( netdev, &hlen, &flags );
55	printf ( "DHCP (%s ", netdev->name );
56	while ( hlen-- )
57		printf ( "%02x%c", *(chaddr++), ( hlen ? ':' : ')' ) );
58
59	if ( ( rc = start_dhcp ( &monojob, netdev ) ) == 0 ) {
60		rc = monojob_wait ( "" );
61	} else if ( rc > 0 ) {
62		printf ( " using cached\n" );
63		rc = 0;
64	}
65
66	return rc;
67}
68
69int pxebs ( struct net_device *netdev, unsigned int pxe_type ) {
70	int rc;
71
72	/* Perform PXE Boot Server Discovery */
73	printf ( "PXEBS (%s type %d)", netdev->name, pxe_type );
74	if ( ( rc = start_pxebs ( &monojob, netdev, pxe_type ) ) == 0 )
75		rc = monojob_wait ( "" );
76
77	return rc;
78}
79