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Merge pull request #4095 from immarvin/ondhcp

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add a helper script to remove dhcp lease of specified mac,ip and nodename
This commit is contained in:
zet809
2017-10-18 17:20:55 +08:00
committed by GitHub
parent a6661f84b7 7552b616fa
commit 26f46fbed6
1 changed files with 79 additions and 0 deletions
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79
xCAT-server/share/xcat/tools/dhcpop Executable file
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#!/usr/bin/perl -w
#use Data::Dumper;
use Getopt::Long;
sub usage{
print "Usage: dhcphelper -h \n";
print "\n";
print " dhcphelper -r|--rm -m|--mac <mac address> [ -a|--ip <ip address>] [ -n|--name <node name>]\n";
print " delete the dhcp lease of specified <mac>,<ip address> and <node name>\n";
print "\n";
}
my $help;
my $rmop;
my $mac;
my $ip;
my $hostname;
GetOptions ("m|mac=s" => \$mac, # numeric
"a|ip=s" => \$ip, # string
"n|name=s" => \$hostname, # string
"r|rm" => \$rmop, # flag
"h|help" => \$help) # flag
or &usage;
if($help){
&usage;
exit 0;
}elsif($rmop){
my $out=qx(tabdump -w key==omapi -w username==xcat_key passwd |tail -n1|awk -F, '{print \$2","\$3}');
$out =~ s/("|\n)//g;
my ($id,$passwd)=split(',',$out);
if(-z "$id" || -z "$passwd" ){
print "Error: no 'omapi' entry defined in passwd table!";
exit 1;
}
my $omshell;
open($omshell, "|/usr/bin/omshell >/dev/null");
print $omshell "key "
. $id . " \""
. $passwd . "\"\n";
print $omshell "connect\n";
if($hostname){
print $omshell "new host\n";
print $omshell
"set name = \"$hostname\"\n"; #Find and destroy conflict name
print $omshell "open\n";
print $omshell "remove\n";
print $omshell "close\n";
}
if ($mac)
{
print $omshell "new host\n";
print $omshell "set hardware-address = " . $mac
. "\n"; #find and destroy mac conflict
print $omshell "open\n";
print $omshell "remove\n";
print $omshell "close\n";
}
if($ip){
print $omshell "new host\n";
print $omshell
"set ip-address = $ip\n"; #find and destroy ip conflict
print $omshell "open\n";
print $omshell "remove\n";
print $omshell "close\n";
}
close($omshell);
}else{
&usage;
exit 1;
}
#print "$mac-$ip-$hostname\n"
exit 0;