如果要将关闭状态的计算机远程开机的话，通常需要在BIOS里进行适当的设置。然后就是发送远程唤醒报文的问题了。网络唤醒包的格式并不复杂，但是问题在于由于唤醒包需要网络广播，无法跨网段唤醒，通常需要在路由器上作一些端口映射，或者设置定向广播之类。那么如果能首先连到目标网段内的一台电脑，无论是windows机或unix机，都好办多了。下面是一个powershell唤醒脚本，在安装有powershell的 windows机上用起来很方便：
从MS官方blog上看到一则很实用的脚本，用来远程唤醒系统
1、确认你的系统是否支持远程唤醒
#ethtool etho|grep ‘Wake-on’
Supports Wake-on: pumbag
Wake-on: g
g 表示已启动
2、编写脚本
|
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|
########################
param
(
$MacAddress
)
echo
“
Wake
up
$MacAddress
Now
!”
[
byte
[
]
]
$MagicPacket
=
0xFF
,
0xFF
,
0xFF
,
0xFF
,
0xFF
,
0xFF
$MagicPacket
+=
(
$MacAddress
.
split
(‘
-’
)
|
foreach
{
[
byte
]
(’0x’
+
$_
)
}
)
*
16
$UdpClient
=
New-Object
System
.
Net
.
Sockets
.
UdpClient
$UdpClient
.
Connect
(
(
[
System
.
Net
.
IPAddress
]
::
Broadcast
)
,9
)
$UdpClient
.
Send
(
$MagicPacket
,
$MagicPacket
.
length
)
########################
|
保存为wakeup.ps1
3、测试：
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|
PS
D
:
programmepowershell
>
ping
192.168.1.188
-
n
1
;
.
wakeup
.
ps1
00
-
16
-
11
-
11
-
11
-
11
;
ping
192.168.1.188
-
n
3
Pinging
192.168.1.188
with
32
bytes
of
data
:
Request
timed
out
.
<<—
-系统处于挂起的状态
Ping
statistics
for
192.168.1.188
:
Packets
:
Sent
=
1
,
Received
=
0
,
Lost
=
1
(
100
%
loss
)
,
Wake
up
00
-
16
-
d3
-
c6
-
bd
-
25
Now
!
102
Pinging
192.168.1.188
with
32
bytes
of
data
:
Request
timed
out
.
Reply
from
192.168.1.188
:
bytes
=
32
time
=
1ms
TTL
=
64
Reply
from
192.168.1.188
:
bytes
=
32
time
<
1ms
TTL
=
64
<<—
-成功
|
windows下常用的magic packet utility就不说了。可唤醒一台目标机也可唤醒一个网段。linux下的工具呢？如果是ubuntu，用以下方法：
sudo apt-get install ethtool
sudo ethtool eth0 |grep Wake-on
如果显示结果为下面这样，就表示网卡支持WOL：
Supports Wake-on:pumbgWake-on : g
在本地计算机上安装远程唤醒工具wakeonlan：
sudo apt-get install wakeonlan
执行下面的命令就可以唤醒远程的计算机了：
#host_address为远程计算机的域名或ip地址，mac_address为远程计算机的mac地址,mac地址是':’间隔的形式
wakeonlan -i host_address mac_address
或者自己编译个简单的程序，因为只需向目标机发送简单的报文就可以了。
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|
/* ether-wake.c: Send a magic packet to wake up sleeping machines. */
static
char
version_msg
[
]
=
"ether-wake.c: v1.09 11/12/2003 Donald Becker, http://www.scyld.com/"
;
static
char
brief_usage_msg
[
]
=
"usage: ether-wake [-i <ifname>] [-p aa:bb:cc:dd[:ee:ff]] 00:11:22:33:44:55\n"
" Use '-u' to see the complete set of options.\n"
;
static
char
usage_msg
[
]
=
"usage: ether-wake [-i <ifname>] [-p aa:bb:cc:dd[:ee:ff]] 00:11:22:33:44:55\n"
"\n"
" This program generates and transmits a Wake-On-LAN (WOL)\n"
" \"Magic Packet\", used for restarting machines that have been\n"
" soft-powered-down (ACPI D3-warm state).\n"
" It currently generates the standard AMD Magic Packet format, with\n"
" an optional password appended.\n"
"\n"
" The single required parameter is the Ethernet MAC (station) address\n"
" of the machine to wake or a host ID with known NSS 'ethers' entry.\n"
" The MAC address may be found with the 'arp' program while the target\n"
" machine is awake.\n"
"\n"
" Options:\n"
" -b Send wake-up packet to the broadcast address.\n"
" -D Increase the debug level.\n"
" -i ifname Use interface IFNAME instead of the default 'eth0'.\n"
" -p <pw> Append the four or six byte password PW to the packet.\n"
" A password is only required for a few adapter types.\n"
" The password may be specified in ethernet hex format\n"
" or dotted decimal (Internet address)\n"
" -p 00:22:44:66:88:aa\n"
" -p 192.168.1.1\n"
;
/*
This program generates and transmits a Wake-On-LAN (WOL) "Magic Packet",
used for restarting machines that have been soft-powered-down
(ACPI D3-warm state). It currently generates the standard AMD Magic Packet
format, with an optional password appended.
This software may be used and distributed according to the terms
of the GNU Public License, incorporated herein by reference.
Contact the author for use under other terms.
This source file was originally part of the network tricks package, and
is now distributed to support the Scyld Beowulf system.
Copyright 1999-2003 Donald Becker and Scyld Computing Corporation.
The author may be reached as becker@scyld, or C/O
Scyld Computing Corporation
914 Bay Ridge Road, Suite 220
Annapolis MD 21403
Notes:
On some systems dropping root capability allows the process to be
dumped, traced or debugged.
If someone traces this program, they get control of a raw socket.
Linux handles this safely, but beware when porting this program.
An alternative to needing 'root' is using a UDP broadcast socket, however
doing so only works with adapters configured for unicast+broadcast Rx
filter. That configuration consumes more power.
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#if 0 /* Only exists on some versions. */
#include <ioctls.h>
#endif
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <linux/if.h>
#include <features.h>
#if __GLIBC__ >= 2 && __GLIBC_MINOR >= 1
#include <netpacket/packet.h>
#include <net/ethernet.h>
#else
#include <asm/types.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#endif
#include <netdb.h>
#include <netinet/ether.h>
/* Grrr, no consistency between include versions.
Enable this if setsockopt() isn't declared with your library. */
#if 0
extern
int
setsockopt
__P
(
(
int
__fd
,
int
__level
,
int
__optname
,
__ptr_t
__optval
,
int
__optlen
)
)
;
#else /* New, correct head files. */
#include <sys/socket.h>
#endif
u_char
outpack
[
1000
]
;
int
outpack_sz
=
0
;
int
debug
=
0
;
u_char
wol_passwd
[
6
]
;
int
wol_passwd_sz
=
0
;
static
int
opt_no_src_addr
=
0
,
opt_broadcast
=
0
;
static
int
get_dest_addr
(
const
char
*
arg
,
struct
ether_addr
*
eaddr
)
;
static
int
get_fill
(
unsigned
char
*
pkt
,
struct
ether_addr
*
eaddr
)
;
static
int
get_wol_pw
(
const
char
*
optarg
)
;
int
main
(
int
argc
,
char
*
argv
[
]
)
{
char
*
ifname
=
"eth0"
;
int
one
=
1
;
/* True, for socket options. */
int
s
;
/* Raw socket */
int
errflag
=
0
,
verbose
=
0
,
do_version
=
0
;
int
perm_failure
=
0
;
int
i
,
c
,
pktsize
;
#if defined(PF_PACKET)
struct
sockaddr_ll
whereto
;
#else
struct
sockaddr
whereto
;
/* who to wake up */
#endif
struct
ether_addr
eaddr
;
while
(
(
c
=
getopt
(
argc
,
argv
,
"bDi:p:uvV"
)
)
!=
-
1
)
switch
(
c
)
{
case
'b'
:
opt_broadcast
++
;
break
;
case
'D'
:
debug
++
;
break
;
case
'i'
:
ifname
=
optarg
;
break
;
case
'p'
:
get_wol_pw
(
optarg
)
;
break
;
case
'u'
:
printf
(
usage_msg
)
;
return
0
;
case
'v'
:
verbose
++
;
break
;
case
'V'
:
do_version
++
;
break
;
case
'?'
:
errflag
++
;
}
if
(
verbose
||
do_version
)
printf
(
"%s\n"
,
version_msg
)
;
if
(
errflag
)
{
fprintf
(
stderr
,
brief_usage_msg
)
;
return
3
;
}
if
(
optind
==
argc
)
{
fprintf
(
stderr
,
"Specify the Ethernet address as 00:11:22:33:44:55.\n"
)
;
return
3
;
}
/* Note: PF_INET, SOCK_DGRAM, IPPROTO_UDP would allow SIOCGIFHWADDR to
work as non-root, but we need SOCK_PACKET to specify the Ethernet
destination address. */
#if defined(PF_PACKET)
s
=
socket
(
PF_PACKET
,
SOCK_RAW
,
0
)
;
#else
s
=
socket
(
AF_INET
,
SOCK_PACKET
,
SOCK_PACKET
)
;
#endif
if
(
s
<
0
)
{
if
(
errno
==
EPERM
)
fprintf
(
stderr
,
"ether-wake: This program must be run as root.\n"
)
;
else
perror
(
"ether-wake: socket"
)
;
perm_failure
++
;
}
/* Don't revert if debugging allows a normal user to get the raw socket. */
setuid
(
getuid
(
)
)
;
/* We look up the station address before reporting failure so that
errors may be reported even when run as a normal user.
*/
if
(
get_dest_addr
(
argv
[
optind
]
,
&
eaddr
)
!=
0
)
return
3
;
if
(
perm_failure
&&
!
debug
)
return
2
;
pktsize
=
get_fill
(
outpack
,
&
eaddr
)
;
/* Fill in the source address, if possible.
The code to retrieve the local station address is Linux specific. */
if
(
!
opt_no_src_addr
)
{
struct
ifreq
if_hwaddr
;
unsigned
char
*
hwaddr
=
if_hwaddr
.
ifr_hwaddr
.
sa_data
;
strcpy
(
if_hwaddr
.
ifr_name
,
ifname
)
;
if
(
ioctl
(
s
,
SIOCGIFHWADDR
,
&
if_hwaddr
)
<
0
)
{
fprintf
(
stderr
,
"SIOCGIFHWADDR on %s failed: %s\n"
,
ifname
,
strerror
(
errno
)
)
;
/* Magic packets still work if our source address is bogus, but
we fail just to be anal. */
return
1
;
}
memcpy
(
outpack
+
6
,
if_hwaddr
.
ifr_hwaddr
.
sa_data
,
6
)
;
if
(
verbose
)
{
printf
(
"The hardware address (SIOCGIFHWADDR) of %s is type %d "
"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n"
,
ifname
,
if_hwaddr
.
ifr_hwaddr
.
sa_family
,
hwaddr
[
0
]
,
hwaddr
[
1
]
,
hwaddr
[
2
]
,
hwaddr
[
3
]
,
hwaddr
[
4
]
,
hwaddr
[
5
]
)
;
}
}
if
(
wol_passwd_sz
>
0
)
{
memcpy
(
outpack
+
pktsize
,
wol_passwd
,
wol_passwd_sz
)
;
pktsize
+=
wol_passwd_sz
;
}
if
(
verbose
>
1
)
{
printf
(
"The final packet is: "
)
;
for
(
i
=
0
;
i
<
pktsize
;
i
++
)
printf
(
" %2.2x"
,
outpack
[
i
]
)
;
printf
(
".\n"
)
;
}
/* This is necessary for broadcasts to work */
if
(
setsockopt
(
s
,
SOL_SOCKET
,
SO_BROADCAST
,
(
char
*
)
&
one
,
sizeof
(
one
)
)
<
0
)
perror
(
"setsockopt: SO_BROADCAST"
)
;
#if defined(PF_PACKET)
{
struct
ifreq
ifr
;
strncpy
(
ifr
.
ifr_name
,
ifname
,
sizeof
(
ifr
.
ifr_name
)
)
;
if
(
ioctl
(
s
,
SIOCGIFINDEX
,
&
ifr
)
==
-
1
)
{
fprintf
(
stderr
,
"SIOCGIFINDEX on %s failed: %s\n"
,
ifname
,
strerror
(
errno
)
)
;
return
1
;
}
memset
(
&
whereto
,
0
,
sizeof
(
whereto
)
)
;
whereto
.
sll_family
=
AF_PACKET
;
whereto
.
sll_ifindex
=
ifr
.
ifr_ifindex
;
/* The manual page incorrectly claims the address must be filled.
We do so because the code may change to match the docs. */
whereto
.
sll_halen
=
ETH_ALEN
;
memcpy
(
whereto
.
sll_addr
,
outpack
,
ETH_ALEN
)
;
}
#else
whereto
.
sa_family
=
0
;
strcpy
(
whereto
.
sa_data
,
ifname
)
;
#endif
if
(
(
i
=
sendto
(
s
,
outpack
,
pktsize
,
0
,
(
struct
sockaddr
*
)
&
whereto
,
sizeof
(
whereto
)
)
)
<
0
)
perror
(
"sendto"
)
;
else
if
(
debug
)
printf
(
"Sendto worked ! %d.\n"
,
i
)
;
#ifdef USE_SEND
if
(
bind
(
s
,
(
struct
sockaddr
*
)
&
whereto
,
sizeof
(
whereto
)
)
<
0
)
perror
(
"bind"
)
;
else
if
(
send
(
s
,
outpack
,
100
,
0
)
<
0
)
perror
(
"send"
)
;
#endif
#ifdef USE_SENDMSG
{
struct
msghdr
msghdr
=
{
0
,
}
;
struct
iovec
iovector
[
1
]
;
msghdr
.
msg_name
=
&
whereto
;
msghdr
.
msg_namelen
=
sizeof
(
whereto
)
;
msghdr
.
msg_iov
=
iovector
;
msghdr
.
msg_iovlen
=
1
;
iovector
[
0
]
.
iov_base
=
outpack
;
iovector
[
0
]
.
iov_len
=
pktsize
;
if
(
(
i
=
sendmsg
(
s
,
&
msghdr
,
0
)
)
<
0
)
perror
(
"sendmsg"
)
;
else
if
(
debug
)
printf
(
"sendmsg worked, %d (%d).\n"
,
i
,
errno
)
;
}
#endif
return
0
;
}
/* Convert the host ID string to a MAC address.
The string may be a
Host name
IP address string
MAC address string
*/
static
int
get_dest_addr
(
const
char
*
hostid
,
struct
ether_addr
*
eaddr
)
{
struct
ether_addr
*
eap
;
eap
=
ether_aton
(
hostid
)
;
if
(
eap
)
{
*
eaddr
=
*
eap
;
if
(
debug
)
fprintf
(
stderr
,
"The target station address is %s.\n"
,
ether_ntoa
(
eaddr
)
)
;
}
else
if
(
ether_hostton
(
hostid
,
eaddr
)
==
0
)
{
if
(
debug
)
fprintf
(
stderr
,
"Station address for hostname %s is %s.\n"
,
hostid
,
ether_ntoa
(
eaddr
)
)
;
}
else
{
(
void
)
fprintf
(
stderr
,
"ether-wake: The Magic Packet host address must be "
"specified as\n"
" - a station address, 00:11:22:33:44:55, or\n"
" - a hostname with a known 'ethers' entry.\n"
)
;
return
-
1
;
}
return
0
;
}
static
int
get_fill
(
unsigned
char
*
pkt
,
struct
ether_addr
*
eaddr
)
{
int
offset
,
i
;
unsigned
char
*
station_addr
=
eaddr
->
ether_addr_octet
;
if
(
opt_broadcast
)
memset
(
pkt
+
0
,
0xff
,
6
)
;
else
memcpy
(
pkt
,
station_addr
,
6
)
;
memcpy
(
pkt
+
6
,
station_addr
,
6
)
;
pkt
[
12
]
=
0x08
;
/* Or 0x0806 for ARP, 0x8035 for RARP */
pkt
[
13
]
=
0x42
;
offset
=
14
;
memset
(
pkt
+
offset
,
0xff
,
6
)
;
offset
+=
6
;
for
(
i
=
0
;
i
<
16
;
i
++
)
{
memcpy
(
pkt
+
offset
,
station_addr
,
6
)
;
offset
+=
6
;
}
if
(
debug
)
{
fprintf
(
stderr
,
"Packet is "
)
;
for
(
i
=
0
;
i
<
offset
;
i
++
)
fprintf
(
stderr
,
" %2.2x"
,
pkt
[
i
]
)
;
fprintf
(
stderr
,
".\n"
)
;
}
return
offset
;
}
static
int
get_wol_pw
(
const
char
*
optarg
)
{
int
passwd
[
6
]
;
int
byte_cnt
;
int
i
;
byte_cnt
=
sscanf
(
optarg
,
"%2x:%2x:%2x:%2x:%2x:%2x"
,
&
passwd
[
0
]
,
&
passwd
[
1
]
,
&
passwd
[
2
]
,
&
passwd
[
3
]
,
&
passwd
[
4
]
,
&
passwd
[
5
]
)
;
if
(
byte_cnt
<
4
)
byte_cnt
=
sscanf
(
optarg
,
"%d.%d.%d.%d"
,
&
passwd
[
0
]
,
&
passwd
[
1
]
,
&
passwd
[
2
]
,
&
passwd
[
3
]
)
;
if
(
byte_cnt
<
4
)
{
fprintf
(
stderr
,
"Unable to read the Wake-On-LAN password.\n"
)
;
return
0
;
}
printf
(
" The Magic packet password is %2.2x %2.2x %2.2x %2.2x (%d).\n"
,
passwd
[
0
]
,
passwd
[
1
]
,
passwd
[
2
]
,
passwd
[
3
]
,
byte_cnt
)
;
for
(
i
=
0
;
i
<
byte_cnt
;
i
++
)
wol_passwd
[
i
]
=
passwd
[
i
]
;
return
wol_passwd_sz
=
byte_cnt
;
}
#if 0
{
to
=
(
struct
sockaddr_in
*
)
&
whereto
;
to
->
sin_family
=
AF_INET
;
if
(
inet_aton
(
target
,
&
to
->
sin_addr
)
)
{
hostname
=
target
;
}
memset
(
&
sa
,
0
,
sizeof
sa
)
;
sa
.
sa_family
=
AF_INET
;
strncpy
(
sa
.
sa_data
,
interface
,
sizeof
sa
.
sa_data
)
;
sendto
(
sock
,
buf
,
bufix
+
len
,
0
,
&
sa
,
sizeof
sa
)
;
strncpy
(
sa
.
sa_data
,
interface
,
sizeof
sa
.
sa_data
)
;
#if 1
sendto
(
sock
,
buf
,
bufix
+
len
,
0
,
&
sa
,
sizeof
sa
)
;
#else
bind
(
sock
,
&
sa
,
sizeof
sa
)
;
connect
(
)
;
send
(
sock
,
buf
,
bufix
+
len
,
0
)
;
#endif
}
#endif
/*
* Local variables:
* compile-command: "gcc -O -Wall -o ether-wake ether-wake.c"
* c-indent-level: 4
* c-basic-offset: 4
* c-indent-level: 4
* tab-width: 4
* End:
*/
|
上面程序未测试，但没有太复杂的原理，仅作收藏用。
FROM: http://www.swmemo.com/584.html
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