mirror of
https://github.com/xcat2/xNBA.git
synced 2024-11-23 01:51:58 +00:00
117 lines
3.5 KiB
Perl
117 lines
3.5 KiB
Perl
#!/usr/bin/perl -w
|
|
#
|
|
# If called as wake.pl -f file it reads lines of the form
|
|
#
|
|
# aa:bb:cc:dd:ee;ff 12.34.56.78 or
|
|
# aa:bb:cc:dd:ee:ff foo.bar.com
|
|
# aa:bb:cc:dd:ee:ff
|
|
#
|
|
# which are MAC addresses and hostnames of NICs to send a wakeup packet.
|
|
# In the first two cases, unicast is used (and root permission may be
|
|
# required if the ARP cache needs to be injected with a mapping).
|
|
# In the third case, broadcast is used, and anybody can run the command.
|
|
# Comments in the file start with #.
|
|
#
|
|
# Or MAC addresses can be specified on the command line
|
|
#
|
|
# wake.pl aa.bb.cc.dd.ee.ff
|
|
#
|
|
# Or both can be used:
|
|
#
|
|
# wake.pl -f addresses.cfg 11:22:33:44:55:66
|
|
#
|
|
# This program may have to be run with superuser privilege because it
|
|
# may need to inject an ARP entry into the cache.
|
|
# Be careful, you could corrupt valid entries if those NICs are
|
|
# already active.
|
|
#
|
|
# Perl version by ken_yap@users.sourceforge.net after DOS/Windows C version posted by
|
|
# Steve_Marfisi@3com.com on the Netboot mailing list
|
|
# Released under GNU Public License, 2000-01-08
|
|
# Added switch -q for quiet mode, changed Getopt usage to work with older versions,
|
|
# added switch -u for unicast mode, now default is always broadcast mode,
|
|
# added switch -s for seach pattern so you could filter entries from file.
|
|
# Guenter.Knauf@dialup.soco.de, 2000-10-14
|
|
#
|
|
use Getopt::Std;
|
|
use Socket;
|
|
|
|
getopts('quf:s:');
|
|
if (defined($opt_f)) {
|
|
unless (open(F, $opt_f)) {
|
|
print STDERR "open: $opt_f: $!\n";
|
|
} else {
|
|
while (<F>) {
|
|
next if /^\s*#/; # skip comments
|
|
($mac, $ip) = split;
|
|
next if !defined($mac) or $mac eq '';
|
|
next if defined($opt_s) and (!/$opt_s/);
|
|
if (!defined($ip) or $ip eq '' or !$opt_u) {
|
|
&send_broadcast_packet($mac);
|
|
} else {
|
|
&send_unicast_packet($mac, $ip);
|
|
}
|
|
}
|
|
close(F);
|
|
}
|
|
}
|
|
while (@ARGV) {
|
|
send_broadcast_packet(shift(@ARGV));
|
|
}
|
|
|
|
sub send_broadcast_packet {
|
|
($mac) = @_;
|
|
|
|
if ($mac !~ /^[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}$/i) {
|
|
print STDERR "Malformed MAC address $mac\n";
|
|
return;
|
|
}
|
|
# Remove colons
|
|
$mac =~ tr/://d;
|
|
# Magic packet is 6 bytes of FF followed by the MAC address 16 times
|
|
$magic = ("\xff" x 6) . (pack('H12', $mac) x 16);
|
|
# Create socket
|
|
socket(S, PF_INET, SOCK_DGRAM, getprotobyname('udp'))
|
|
or die "socket: $!\n";
|
|
# Enable broadcast
|
|
setsockopt(S, SOL_SOCKET, SO_BROADCAST, 1)
|
|
or die "setsockopt: $!\n";
|
|
# Send the wakeup packet
|
|
if (!$opt_q) {
|
|
print "Sending wakeup packet to MAC address $mac";
|
|
print " ($ip)" if (defined($ip));
|
|
print "\n";
|
|
}
|
|
defined(send(S, $magic, 0, sockaddr_in(0x2fff, INADDR_BROADCAST)))
|
|
or print STDERR "send: $!\n";
|
|
close(S);
|
|
}
|
|
|
|
sub send_unicast_packet {
|
|
($mac, $ip) = @_;
|
|
|
|
if (!defined($iaddr = inet_aton($ip))) {
|
|
print STDERR "Cannot resolve $ip\n";
|
|
return;
|
|
}
|
|
if ($mac !~ /^[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}:[\da-f]{2}$/i) {
|
|
print STDERR "Malformed MAC address $mac\n";
|
|
return;
|
|
}
|
|
# Inject entry into ARP table, in case it's not there already
|
|
system("arp -s $ip $mac") == 0
|
|
or print STDERR "Warning: arp command failed, you need to be root\n";
|
|
# Remove colons
|
|
$mac =~ tr/://d;
|
|
# Magic packet is 6 bytes of FF followed by the MAC address 16 times
|
|
$magic = ("\xff" x 6) . (pack('H12', $mac) x 16);
|
|
# Create socket
|
|
socket(S, PF_INET, SOCK_DGRAM, getprotobyname('udp'))
|
|
or die "socket: $!\n";
|
|
# Send the wakeup packet
|
|
print "Sending wakeup packet to $ip at MAC address $mac\n" if (!$opt_q);
|
|
defined(send(S, $magic, 0, sockaddr_in(0x2fff, $iaddr)))
|
|
or print STDERR "send: $!\n";
|
|
close(S);
|
|
}
|