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
19 FILE_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
dhcp(struct net_device * netdev)39 int 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
pxebs(struct net_device * netdev,unsigned int pxe_type)69 int 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