xcat-core/xCAT-server/lib/xcat/plugins/switch.pm
2010-07-28 19:23:51 +00:00

81 lines
2.0 KiB
Perl

# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
package xCAT_plugin::switch;
use IO::Socket;
use Data::Dumper;
use xCAT::MacMap;
use Sys::Syslog;
use Storable;
my $macmap;
sub handled_commands {
$macmap = xCAT::MacMap->new();
return {
findme => 'switch',
findmac => 'switch',
};
}
sub process_request {
my $req = shift;
my $cb = shift;
my $doreq = shift;
my $node;
my $mac = '';
if ($req->{command}->[0] eq 'findmac') {
$mac = $req->{arg}->[0];
$node = $macmap->find_mac($mac,0);
$cb->({node=>[{name=>$node,data=>$mac}]});
return;
}
my $ip = $req->{'_xcat_clientip'};
if (defined $req->{nodetype} and $req->{nodetype}->[0] eq 'virtual') {
#Don't attempt switch discovery of a VM Guest
#TODO: in this case, we could/should find the host system
#and then ask it what node is associated with the mac
#Either way, it would be kinda weird since xCAT probably made up the mac addy
#anyway, however, complex network topology function may be aided by
#discovery working. Food for thought.
return;
}
my $arptable = `/sbin/arp -n`;
my @arpents = split /\n/,$arptable;
foreach (@arpents) {
if (m/^($ip)\s+\S+\s+(\S+)\s/) {
$mac=$2;
last;
}
}
my $firstpass=1;
if ($mac) {
$node = $macmap->find_mac($mac,$req->{cacheonly}->[0]);
$firstpass=0;
}
if (not $node) { # and $req->{checkallmacs}->[0]) {
foreach (@{$req->{mac}}) {
/.*\|.*\|([\dABCDEFabcdef:]+)(\||$)/;
$node = $macmap->find_mac($1,$firstpass);
$firstpass=0;
if ($node) { last; }
}
}
if ($node) {
my $mactab = xCAT::Table->new('mac',-create=>1);
$mactab->setNodeAttribs($node,{mac=>$mac});
$mactab->close();
#my %request = (
# command => ['makedhcp'],
# node => [$node]
#);
#$doreq->(\%request);
$req->{command}=['discovered'];
$req->{noderange} = [$node];
$doreq->($req);
%{$req}=();#Clear req structure, it's done..
undef $mactab;
} else {
#Shouldn't complain, might be blade, but how to log total failures?
}
}
1;