mirror of
https://github.com/xcat2/xNBA.git
synced 2024-11-22 09:31:51 +00:00
109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2008 William Stewart.
|
|
*
|
|
* 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 <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <byteswap.h>
|
|
#include <gpxe/features.h>
|
|
#include <gpxe/netdevice.h>
|
|
#include <gpxe/if_ether.h>
|
|
#include <gpxe/iobuf.h>
|
|
#include <usr/ifmgmt.h>
|
|
#include <usr/wol.h>
|
|
#include <timer.h>
|
|
|
|
/** @file
|
|
*
|
|
* Wake on lan
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* Boot from a network device
|
|
*
|
|
* @v netdev Network device
|
|
* @ret rc Return status code
|
|
*/
|
|
#define WOL_MSG_LEN (6 + 16*6)
|
|
|
|
void wakeup_server(char *server_adr)
|
|
{
|
|
int rc, i,j;
|
|
unsigned char *buf;
|
|
uint8_t eth_broadcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
|
|
unsigned int len;
|
|
struct io_buffer *iobuf;
|
|
struct ethhdr *ethhdr;
|
|
struct net_device *netdev;
|
|
|
|
for_each_netdev ( netdev ) {
|
|
break;
|
|
}
|
|
|
|
if (netdev == NULL)
|
|
{
|
|
printf("Could not find netdev\n");
|
|
return;
|
|
}
|
|
|
|
/* Open device and display device status */
|
|
if ( (ifopen ( netdev ) ) != 0 )
|
|
{
|
|
printf("Could not open netdev\n");
|
|
return;
|
|
}
|
|
|
|
/* Create outgoing I/O buffer */
|
|
iobuf = alloc_iob ((ETH_HLEN + WOL_MSG_LEN)*2);
|
|
if (!iobuf)
|
|
{
|
|
printf("Could not allocate iob\n");
|
|
return;
|
|
}
|
|
|
|
ethhdr = iob_put(iobuf, sizeof(*ethhdr));
|
|
|
|
/* Build Ethernet header */
|
|
memcpy (ethhdr->h_dest, eth_broadcast, ETH_ALEN );
|
|
memcpy (ethhdr->h_source, netdev->ll_addr, ETH_ALEN );
|
|
ethhdr->h_protocol = htons (0x0842);
|
|
|
|
buf = iob_put (iobuf, WOL_MSG_LEN);
|
|
|
|
/* Build the message to send - 6 x 0xff then 16 x dest address */
|
|
len =0;
|
|
for (i = 0; i < 6; i++)
|
|
buf[len++] = 0xff;
|
|
for (j = 0; j < 16; j++)
|
|
for (i = 0; i < 6; i++)
|
|
buf[len++] = server_adr[i];
|
|
|
|
rc = netdev_tx (netdev, iobuf);
|
|
|
|
if (rc !=0)
|
|
printf("Failed to transmit WOL packet\n");
|
|
|
|
/* Give the controller a chance to send it before checking */
|
|
mdelay(100);
|
|
|
|
netdev_poll(netdev);
|
|
}
|
|
|