#!/usr/bin/env perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
package xCAT_plugin::blade;
#use Net::SNMP qw(:snmp INTEGER);
use xCAT::Table;
use IO::Socket;
use SNMP;
use strict;

use XML::Simple;
use Data::Dumper;
use POSIX "WNOHANG";
use Storable qw(freeze thaw);
use IO::Select;
use IO::Handle;


sub handled_commands {
  return {
    findme => 'blade',
    rpower => 'nodehm:power,mgt',
    rvitals => 'nodehm:vitals,mgt',
    rinv => 'nodehm:inv,mgt',
    rbeacon => 'nodehm:beacon,mgt',
    rbootseq => 'nodehm:bootseq,mgt',
    reventlog => 'nodehm:eventlog,mgt',
  };
}
my %usage = (
    "rpower" => "Usage: rpower <noderange> [on|off|reset|stat|boot]",
    "rbeacon" => "Usage: rbeacon <noderange> [on|off|stat]",
    "rvitals" => "Usage: rvitals <noderange> [all|temp|voltage|fanspeed|power|leds]",
    "reventlog" => "Usage: reventlog <noderange> [all|clear|<number of entries to retrieve>]",
    "rinv" => "Usage: rinv <noderange> [all|model|serial|vpd|mprom|deviceid|uuid]",
    "rbootseq" => "Usage: rbootseq <noderange> [hd0|hd1|hd2|hd3|net|iscsi|usbflash|floppy|none],...",
);
my %macmap; #Store responses from rinv for discovery
my $mmprimoid = '1.3.6.1.4.1.2.3.51.2.22.5.1.1.4';#mmPrimary
my $beaconoid = '1.3.6.1.4.1.2.3.51.2.2.8.2.1.1.11'; #ledBladeIdentity
my $powerstatoid = '1.3.6.1.4.1.2.3.51.2.22.1.5.1.1.4';#bladePowerState
my $powerchangeoid = '1.3.6.1.4.1.2.3.51.2.22.1.6.1.1.7';#powerOnOffBlade
my $powerresetoid = '1.3.6.1.4.1.2.3.51.2.22.1.6.1.1.8';#restartBlade
my $mpresetoid = '1.3.6.1.4.1.2.3.51.2.22.1.6.1.1.9'; #restartBladeSMP
my $bladexistsoid = '1.3.6.1.4.1.2.3.51.2.22.1.5.1.1.3'; #bladeExists
my $bladeserialoid = '1.3.6.1.4.1.2.3.51.2.2.21.4.1.1.6'; #bladeHardwareVpdSerialNumber
my $blademtmoid = '1.3.6.1.4.1.2.3.51.2.2.21.4.1.1.7'; #bladeHardwareVpdMachineType
my $bladempveroid = '1.3.6.1.4.1.2.3.51.2.2.21.5.3.1.7'; #bladeSysMgmtProcVpdRevision
my $bladempaveroid = '1.3.6.1.4.1.2.3.51.2.2.21.3.1.1.4';#mmMainApplVpdRevisonNumber
my $bladempabuildidoid = '1.3.6.1.4.1.2.3.51.2.2.21.3.1.1.3';#mmMainApplVpdBuildId
my $bladempadateoid = '1.3.6.1.4.1.2.3.51.2.2.21.3.1.1.6';#mmMainApplVpdBuildDate
my $bladempbuildidoid = '1.3.6.1.4.1.2.3.51.2.2.21.5.3.1.6'; #bladeSysMgmtProcVpdBuildId
my $bladebiosveroid = '1.3.6.1.4.1.2.3.51.2.2.21.5.1.1.7'; #bladeBiosVpdRevision
my $bladebiosbuildidoid = '1.3.6.1.4.1.2.3.51.2.2.21.5.1.1.6'; #bladeBiosVpdBuildId
my $bladebiosdateoid = '1.3.6.1.4.1.2.3.51.2.2.21.5.1.1.8'; #bladeBiosVpdDate
my $bladediagveroid = '1.3.6.1.4.1.2.3.51.2.2.21.5.2.1.7'; #bladeDiagsVpdRevision
my $bladediagbuildidoid = '1.3.6.1.4.1.2.3.51.2.2.21.5.2.1.6'; #bladeDiagsVpdBuildId
my $bladediagdateoid = '1.3.6.1.4.1.2.3.51.2.2.21.5.2.1.8';#bladeDiagsVpdDate
my $eventlogoid = '1.3.6.1.4.1.2.3.51.2.3.4.2.1.2';#readEventLogString
my $clearlogoid = '.1.3.6.1.4.1.2.3.51.2.3.4.3';#clearEventLog
my $blower1speedoid = '.1.3.6.1.4.1.2.3.51.2.2.3.1';#blower2speed
my $blower1stateoid = '.1.3.6.1.4.1.2.3.51.2.2.3.10';#blower1State
my $blower2stateoid = '.1.3.6.1.4.1.2.3.51.2.2.3.11';#blower2State
my $blower2speedoid = '.1.3.6.1.4.1.2.3.51.2.2.3.2';#blower2speed

my @macoids = (
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.2', #bladeMACAddress1Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.3', #bladeMACAddress2Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.4', #bladeMACAddress3Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.5', #bladeMACAddress4Vpd
);
my @dcmacoids = (
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.10', #bladeDaughterCard1MACAddress1Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.11', #bladeDaughterCard1MACAddress2Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.12', #bladeDaughterCard1MACAddress3Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.13', #bladeDaughterCard1MACAddress4Vpd
);
my @hsdcmacoids = (
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.100', #bladeHSDaughterCard1MACAddress1Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.101', #bladeHSDaughterCard1MACAddress2Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.102', #bladeHSDaughterCard1MACAddress3Vpd
  '1.3.6.1.4.1.2.3.51.2.2.21.4.2.1.103', #bladeHSDaughterCard1MACAddress4Vpd
);
my @bootseqoids = (
  '1.3.6.1.4.1.2.3.51.2.22.1.3.1.7', #bootSequence1
  '1.3.6.1.4.1.2.3.51.2.22.1.3.1.8', #bootSequence2
  '1.3.6.1.4.1.2.3.51.2.22.1.3.1.9', #bootSequence3
  '1.3.6.1.4.1.2.3.51.2.22.1.3.1.10', #bootSequence4
  );
my %bootdevices = (
  0 => 'none',
  1 => 'floppy',
  2 => 'cdrom',
  3 => 'hd0',
  4 => 'hd1',
  5 => 'hd2',
  6 => 'hd3',
  7 => 'net',
  8 => 'iscsi',
  9 => 'iscsicrit',
  10 => 'hd4',
  11 => 'usbflash'
);
my %bootnumbers = (
  'none' => 0,
  'f' => 1,
  'floppy' => 1,
  'c' => 2,
  'cd' => 2,
  'dvd' => 2,
  'cdrom' => 2,
  'dvdrom' => 2,
  'h' => 3, #in absence of an index, presuming hd0 intended
  'hd' => 3,
  'hardisk' => 3,
  'hd0' => 3,
  'harddisk0' => 3,
  'hd1' => 4,
  'harddisk1' => 4,
  'hd2' => 5,
  'harddisk2' => 5,
  'hd3' => 6,
  'harddisk3' => 6,
  'n' => 7,
  'network' => 7,
  'net' => 7,
  'iscsi' => 8,
  'iscsicrit' => 9,
  'hd4' => 10,
  'harddisk4' => 10,
  'usbflash' => 11,
  'flash' => 11,
  'usb' => 11
);

my $session;
my $slot;
my $didchassis = 0;
my @eventlog_array = ();
my $activemm;
my %mpahash;
my $mpa;
my $allinchassis=0;

sub fillresps {
  my $response = shift;
  my $mac = $response->{node}->[0]->{data}->[0]->{contents}->[0];
  my $node = $response->{node}->[0]->{name}->[0];
  $macmap{$mac} = $node;
  #$macmap{$response->{node}->[0]->{data}->{contents}->[0]}=$response->{node}->[0]->{name};
}
sub isallchassis {
  my $bladesinchassis = 0;
  if ($allinchassis) {
    return 1;
  }
  foreach (1..14) {
    my $tmp = $session->get([$bladexistsoid.".$_"]);
    if ($tmp eq 1) { $bladesinchassis++ }
  }
  my $count = keys %{$mpahash{$mpa}->{nodes}};
  if ($count >= $bladesinchassis) { $allinchassis++; return 1 }; #commands that affect entire are okayed, i.e eventlog clear
  return 0;  
}
sub resetmp {
  my $data;
  my $stat;
  my $rc;
  $data = $session->set($mpresetoid.".$slot", 1);
  #if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
  if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
  if ($data->{$mpresetoid.".$slot"} == 1) {
    return (0, "mpreset");
  } else {
    return (1,"error");
  }
}

sub walkelog {
  my $session = shift;
  my $oid = shift;
  unless ($oid =~ /^\./) {
    $oid = '.'.$oid;
  }
  my $retmap = undef;
  my $current = 1;
  my @bindlist;
  my $varbind;
  do {
    foreach ($current..$current+31) { #Attempt to retrive 32 ents at a time, seems to be working...
      push @bindlist,[$oid,$_];
    }
    $current+=32;
    $varbind = new SNMP::VarList(
      @bindlist
      );
    $session->get($varbind);
    foreach(@$varbind) {
      unless (${_}->[2]) {last;}
      if( ${_}->[2] =~ /NOSUCHINSTANCE/) {last;}
      $retmap->{$_->[1]}=$_->[2];
    }
  } while ($varbind->[31] and $varbind->[31]->[2] != 'NOSUCHINSTANCE' and ($current < 600));

  return $retmap;
  print "Count was $current\n";
  #print Dumper($varbind->[60]->[2]);
  print "\n\n";
  return undef;
  my $count=0;
  while ($varbind->[0] =~ /^$oid\.?(.*)/) {
    $count++;
    if ($1) {
      $retmap->{$1.".".$varbind->[1]}=$varbind->[2]; #If $1 is set, means key should 
    } else {
      $retmap->{$varbind->[1]}=$varbind->[2]; #If $1 is set, means key should 
    }
    $session->getnext($varbind);
  }
  return $retmap;
}

sub eventlog { #Tried various optimizations, but MM seems not to do bulk-request
  #TODO: retrieval of non blade events, what should be syntax?
  #TODO: try retrieving 5 at a time, then 1 at a time when that stops working
  my $cmd=shift;
  my $data;
  my @output;
  my $oid = $eventlogoid;
  if ($cmd eq 'all') {
    $cmd=65535; #no MM has this many logs possible, should be a good number
  }
  if ($cmd =~ /^(\d+)$/) {
    my $requestednumber=$1;
    unless (@eventlog_array) {
      #my $varbind=new SNMP::Varbind([$oid,0]);
      #while ($data=$session->getnext($varbind)) {
      #  print Dumper($data);
      #  if ($session->{ErrorStr}) { printf $session->{ErrorStr}."\n"; }
      #  foreach (keys %$data) {
      #    $oid=$_;
      #  }
      #  unless (oid_base_match($eventlogoid,$oid)) {
      #    last;
      #  }
        my $logents = walkelog($session,$oid);
        foreach (sort {$a <=> $b} (keys %$logents)) {
          push @eventlog_array,$logents->{$_}."\n";
        }
        #push @eventlog_array,$data->{$oid}; #TODO: filter against slot number, check for $allchassis for non-blade
      #}
    }
    my $numentries=0;
    #my $allchassis = isallchassis;
    foreach (@eventlog_array) {
      m/Severity:(\S+)\s+Source:(\S+)\s+Name:\S*\s+Date:(\S+)\s+Time:(\S+)\s+Text:(.+)/;
      my $sev=$1;
      my $source=$2;
      my $date=$3;
      my $time=$4;
      my $text=$5;
      my $matchstring;
      if ($slot > 0) {
        $matchstring=sprintf("BLADE_%02d",$slot);
      } else {
        $matchstring="^(?!BLADE).*";
      }
      if ($source =~ m/$matchstring$/i) { #MM guys changed their minds on capitalization
        $numentries++;
        unshift @output,"$sev:$date $time $text"; #unshift to get it in a sane order
      }
      if ($numentries >= $requestednumber) {
        last;
      }
    }
    return (0,@output);
  }
  my $data;
  if ($cmd eq "clear") {
    unless (isallchassis) {
      return (1,"Cannot clear eventlogs except for entire chassis");
    }
    if ($didchassis) { return 0, "eventlog cleared" }
    my $varbind = new SNMP::Varbind([$clearlogoid,0,1,'INTEGER']);
    $data = $session->set($varbind);
    if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
    $didchassis=1;
    if ($varbind->[2] eq 1) {
      return 0, "eventlog cleared";
    }
  }
}



sub bootseq {
  my @args=@_;
  my $data;
  my @order=();
  if ($args[0] eq "list" or $args[0] eq "stat") {
    foreach my $oid (@bootseqoids) {
      $data=$session->get([$oid,$slot]);
      if ($session->{ErrorStr}) { return (1, $session->{ErrorStr}); }
      push @order,$bootdevices{$data};
    }
    return (0,join(',',@order));
  } else {
    foreach (@args) {
      my @neworder=(split /,/,$_);
      push @order,@neworder;
    }
    my $number=@order;
    if ($number > 4) {
      return (1,"Only four boot sequence entries allowed");
    }
    my $nonespecified=0;
    foreach (@order) {
      unless (defined($bootnumbers{$_})) { return (1,"Unsupported device $_"); }
      unless ($bootnumbers{$_}) { $nonespecified = 1; }
      if ($nonespecified and $bootnumbers{$_}) { return (1,"Error: cannot specify 'none' before a device"); }
    }
    unless ($bootnumbers{$order[0]}) {
        return (1,"Error: cannot specify 'none' as first device");
    }
    foreach (3,2,1,0) {
      my $param = $bootnumbers{$order[$_]};
      unless ($param) { 
        $param = 0;
        my $varbind = new SNMP::Varbind([$bootseqoids[$_],$slot,$param,'INTEGER']);
        $data = $session->set($varbind);
        #$session->set($bootseqoids[$_].".$slot",$param);
        if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      }
    }
    foreach (0,1,2,3) {
      my $param = $bootnumbers{$order[$_]};
      if ($param) { 
        my $varbind = new SNMP::Varbind([$bootseqoids[$_],$slot,$param,'INTEGER']);
        $data = $session->set($varbind);
        #$session->set($bootseqoids[$_].".$slot",$param);
        if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      }
    }
    return bootseq('list');
  }
}


sub vitals {
   my @output;
   my $tmp;
   my @vitems;
   foreach (@_) {
     if ($_ eq 'all') {
	push @vitems,qw(temp,wattage,voltage,fan,summary);
     } else {
	push @vitems,split( /,/,$_);
     }
   }
   my $tmp;
   if (grep /watt/,@vitems) {
       if ($slot < 8) {
        $tmp = $session->get(["1.3.6.1.4.1.2.3.51.2.2.10.2.1.1.7.".($slot+16)]);
       } else {
        $tmp = $session->get(["1.3.6.1.4.1.2.3.51.2.2.10.3.1.1.7.".($slot+9)]);
       }
       unless ($tmp =~ /Not Readable/) {
         if ($tmp =~ /(\d+)W/) {
             $tmp = "$1 Watts (". int($tmp * 3.413+0.5)." BTUs/hr)";
         }
         $tmp =~ s/^/Power Usage:/;


         push @output,"$tmp";
       }
   }
       
        
   if (grep /fan/,@vitems or grep /blower/,@vitems) {
     $tmp=$session->get(['1.3.6.1.4.1.2.3.51.2.2.3.1.0']);
     push @output,"Blower 1:  $tmp";
     $tmp=$session->get(['1.3.6.1.4.1.2.3.51.2.2.3.2.0']);
     push @output,"Blower 2:  $tmp";
     $tmp=$session->get(['1.3.6.1.4.1.2.3.51.2.2.6.1.1.5.1']);
     push @output,"Fan Pack 1:  $tmp";
     $tmp=$session->get(['1.3.6.1.4.1.2.3.51.2.2.6.1.1.5.2']);
     push @output,"Fan Pack 2:  $tmp";
     $tmp=$session->get(['1.3.6.1.4.1.2.3.51.2.2.6.1.1.5.3']);
     push @output,"Fan Pack 3:  $tmp";
     $tmp=$session->get(['1.3.6.1.4.1.2.3.51.2.2.6.1.1.5.4']);
     push @output,"Fan Pack 4:  $tmp";
   }
   if (grep /volt/,@vitems) {
	for my $idx (15..40) {
	   $tmp=$session->get([".1.3.6.1.4.1.2.3.51.2.22.1.5.5.1.$idx.$slot"]);
           unless ($tmp =~ /Not Readable/) {
             $tmp =~ s/ = /:/;
             push @output,"$tmp";
           }
	}
    }

   if (grep /temp/,@vitems) {
      $tmp=$session->get(["1.3.6.1.4.1.2.3.51.2.2.1.5.1.0"]);
      push (@output,"Ambient: $tmp");
      for my $idx (6..20) {
	if ($idx eq 11) {
		next;
	}
        $tmp=$session->get([".1.3.6.1.4.1.2.3.51.2.22.1.5.3.1.$idx.$slot"]);
        unless ($tmp =~ /Not Readable/) {
          $tmp =~ s/ = /:/;
          push @output,"$tmp";
        }
      }
   }
   if (grep /summary/,@vitems) {
      $tmp="Status: ".$session->get(['1.3.6.1.4.1.2.3.51.2.22.1.5.2.1.3.'.$slot]);
      $tmp.=", ".$session->get(['1.3.6.1.4.1.2.3.51.2.22.1.5.2.1.4.'.$slot]);
      push @output,"$tmp";
   }
   return(0,@output);
}
	
  
sub inv {
  my @invitems;
  my $data;
  my @output;
  foreach (@_) {
    push @invitems,split( /,/,$_);
  }
  my $item;
  while (my $item = shift @invitems) {
    if ($item =~ /^all/) {
      push @invitems,(qw(mtm serial mac firm));
      next;
    }
    if ($item =~ /^firm/) {
      push @invitems,(qw(bios diag mprom mparom));
      next;
    }
    if ($item =~ /^bios/) {
      my $biosver;
      my $biosbuild;
      my $biosdate;
      $biosver=$session->get([$bladebiosveroid.".$slot"]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $biosbuild=$session->get([$bladebiosbuildidoid.".$slot"]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $biosdate=$session->get([$bladebiosdateoid.".$slot"]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      push @output,"BIOS: $biosver ($biosbuild $biosdate)";
    }
    if ($item =~ /^diag/) {
      my $diagver;
      my $diagdate;
      my $diagbuild;
      $data=$session->get([$bladediagveroid,$slot]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $diagver = $data;
      $data=$session->get([$bladediagbuildidoid,$slot]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $diagbuild = $data;
      $data=$session->get([$bladediagdateoid,$slot]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $diagdate = $data;
      push @output,"Diagnostics:  $diagver ($diagbuild $diagdate)";
    }
    if ($item =~ /^[sm]prom/) {
      my $spver;
      my $spbuild;
      $data=$session->get([$bladempveroid,$slot]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $spver=$data;
      $data=$session->get([$bladempbuildidoid,$slot]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $spbuild=$data;
      push @output,"BMC/Mgt processor:  $spver ($spbuild)";
    }
    if ($item =~ /^mparom/) {
      my $mpabuild;
      my $mpaver;
      my $mpadate;
      $data=$session->get([$bladempaveroid,$activemm]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $mpaver=$data;
      $data=$session->get([$bladempabuildidoid,$activemm]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $mpabuild=$data;
      $data=$session->get([$bladempadateoid,$activemm]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      $mpadate=$data;
      push @output,"Management Module firmware: $mpaver ($mpabuild $mpadate)";
    }
    if ($item =~ /^model/ or $item =~ /^mtm/) {
      $data=$session->get([$blademtmoid,$slot]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      push @output,"Machine Type/Model: ".$data;
    }
    if ($item =~ /^serial/) {
      $data=$session->get([$bladeserialoid,$slot]);
      if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
      push @output,"Serial Number: ".$data;
    }

    if ($item =~ /^mac/) {
      foreach (0..3) {
        $data=$session->get([$macoids[$_],$slot]);
        if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
        if ($data =~ /:/) {
          push @output,"MAC Address ".($_+1).": ".$data; 
        }
      }
      foreach (0..3) {
        my $oid=$hsdcmacoids[$_].".$slot";
        $data=$session->get([$hsdcmacoids[$_],$slot]);
        if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
        if ($data =~ /:/) {
          push @output,"HS Daughter card MAC Address ".($_+1).": ".$data;
        }
      }
      foreach (0..3) {
        $data=$session->get([$dcmacoids[$_],$slot]);
        if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
        if ($data =~ /:/) {
          push @output,"Daughter card 1 MAC Address ".($_+1).": ".$data;
        }
      }
    }
  }
  return (0,@output);
}
sub power {
  my $subcommand = shift;
  my $data;
  my $stat;
  if ($subcommand eq "stat" or $subcommand eq "boot") {
    $data = $session->get([$powerstatoid.".".$slot]);
    if ($data == 1) {
      $stat = "on";
    } elsif ( $data == 0) {
      $stat = "off";
    } else {
      $stat= "error";
    }
  } elsif ($subcommand eq "off") {
    $data = $session->set(new SNMP::Varbind([".".$powerchangeoid,$slot,0,'INTEGER']));
    unless ($data) { return (1,$session->{ErrorStr}); }
    $stat = "off";
  } 
  if ($subcommand eq "on" or ($subcommand eq "boot" and $stat eq "off")) {
    $data = $session->set(new SNMP::Varbind([".".$powerchangeoid,$slot,1,'INTEGER']));
    unless ($data) { return (1,$session->{ErrorStr}); }
    $stat = ($data ? "on" : "off");
  } elsif ($subcommand eq "reset" or ($subcommand eq "boot" and $stat eq "on")) {
    $data = $session->set(new SNMP::Varbind([".".$powerresetoid,$slot ,1,'INTEGER']));
    unless ($data) { return (1,$session->{ErrorStr}); }
    $stat = "reset";
  }
  if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
  if ($stat) { return (0,$stat); }
}
    

sub beacon {
  my $subcommand = shift;
  my $data;
  if ($subcommand eq "stat") {
  } elsif ($subcommand eq "on") {
    $data = $session->set(new SNMP::Varbind([$beaconoid,$slot , 1,'INTEGER']));
  } elsif ($subcommand eq "off") {
    $data = $session->set(new SNMP::Varbind([$beaconoid,$slot , 0,'INTEGER']));
  } elsif ($subcommand eq "blink") {
    $data = $session->set(new SNMP::Varbind([$beaconoid,$slot , 2,'INTEGER']));
  } else {
    return (1,"$subcommand unsupported");
  }
  my $stat = $session->get([$beaconoid.".".$slot]);
  if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
  if ($stat==0) {
    return (0,"off");
  } elsif ($stat==1) {
    return (0,"on");
  } elsif ($stat==2) {
    return (0,"blink");
  } elsif ($stat==3) {
    return (0,"unsupported");
  }
}

sub bladecmd {
  $mpa = shift;
  $slot = shift;
  #my $user = shift;
  #my $pass = shift;
  my $command = shift;
  my @args = @_;
  my $error;

	
  if ($slot > 0) {
    my $tmp = $session->get([$bladexistsoid.".$slot"]);
    if ($session->{ErrorStr}) { return (1,$session->{ErrorStr}); }
    unless ($tmp eq 1) { return (1,"Target bay empty"); }
  }
  if ($command eq "rbeacon") {
    return beacon(@args);
  } elsif ($command eq "rpower") {
    return power(@args);
  } elsif ($command eq "rvitals") {
    return vitals(@args);
  } elsif ($command =~ /r[ms]preset/) {
    return resetmp(@args);
  } elsif ($command eq "rbootseq") {
    return bootseq(@args);
  } elsif ($command eq "rinv") {
    return inv(@args);
  } elsif ($command eq "reventlog") {
    return eventlog(@args);
  }
  
  return (1,"$command not a supported command by blade method");
}


sub process_request { 
  my $request = shift;
  my $callback = shift;
  my $doreq = shift;
  my $noderange = $request->{node};
  my $command = $request->{command}->[0];
  my @exargs;
  unless ($noderange or $command eq "findme") {
      if ($usage{$command}) {
          $callback->({data=>$usage{$command}});
          $request = {};
      }
      return;
  }
  if (ref($request->{arg})) {
    @exargs = @{$request->{arg}};
  } else {
    @exargs = ($request->{arg});
  }
  my $bladeuser = 'USERID';
  my $bladepass = 'PASSW0RD';
  my $blademaxp = 64;
  my $sitetab = xCAT::Table->new('site');
  my $mpatab = xCAT::Table->new('mpa');
  my $mptab = xCAT::Table->new('mp');
  my $tmp;
  if ($sitetab) {
    ($tmp)=$sitetab->getAttribs({'key'=>'blademaxp'},'value');
    if (defined($tmp)) { $blademaxp=$tmp->{value}; }
  }
  my $passtab = xCAT::Table->new('passwd');
  if ($passtab) {
    ($tmp)=$passtab->getAttribs({'key'=>'blade'},'username','password');
    if (defined($tmp)) {
      $bladeuser = $tmp->{username};
      $bladepass = $tmp->{password};
    }
  }
  if ($request->{command}->[0] eq "findme") {
    my $mptab = xCAT::Table->new("mp");
    unless ($mptab) { return 2; }
    my @bladents = $mptab->getAllNodeAttribs([qw(node)]);
    my @blades;
    foreach (@bladents) {
      push @blades,$_->{node};
    }
    my %invreq;
    $invreq{node} = \@blades;
    $invreq{arg} = ['mac'];
    $invreq{command} = ['rinv'];
    my $mac;
    my $ip = $request->{'!xcat_clientip'};
    my $arptable = `/sbin/arp -n`;
    my @arpents = split /\n/,$arptable;
    foreach  (@arpents) {
      if (m/^($ip)\s+\S+\s+(\S+)\s/) {
        $mac=$2;
        last;
      }
    }
    unless ($mac) { return };

    unless ($macmap{$mac}) { 
      process_request(\%invreq,\&fillresps);
    }
    unless ($macmap{$mac}) { 
      return 1; #failure
    }
    my $mactab = xCAT::Table->new('mac',-create=>1);
    $mactab->setNodeAttribs($macmap{$mac},{mac=>$mac});
    $mactab->close();
    my %request = (
      command => ['makedhcp'],
      node => [$macmap{$mac}]
      );
    $doreq->(\%request);
    $request->{command}=['discovered'];
    $request->{noderange} = [$macmap{$mac}];
    $doreq->($request);
    %{$request}=(); #Clear request. it is done
    undef $mactab;
    return 0;
  }


  my $children = 0;
  $SIG{CHLD} = sub { while (waitpid(-1, WNOHANG) > 0) { $children--; } };
  my $inputs = new IO::Select;;
  foreach (@$noderange) {
    my $node=$_;
    my $user=$bladeuser;
    my $pass=$bladepass;
    my $nodeid;
    my $mpa;
    my $ent;
    if (defined($mptab)) {
      $ent=$mptab->getNodeAttribs($node,['mpa','id']);
      if (defined($ent->{mpa})) { $mpa=$ent->{mpa}; }
      if (defined($ent->{id})) { $nodeid = $ent->{id}; }
    }
    if (defined($mpatab)) {
      ($ent)=$mpatab->getAttribs({'mpa'=>$mpa},'username','password');
      if (defined($ent->{password})) { $pass = $ent->{password}; }
      if (defined($ent->{username})) { $user = $ent->{username}; }
    }
    $mpahash{$mpa}->{nodes}->{$node}=$nodeid;
    $mpahash{$mpa}->{username} = $user;
    $mpahash{$mpa}->{password} = $pass;
  }
  my $sub_fds = new IO::Select;
  foreach $mpa (sort (keys %mpahash)) {
    while ($children > $blademaxp) { sleep (0.1); }
    $children++;
    my $cfd;
    my $pfd;
    pipe $cfd, $pfd;
    $cfd->autoflush(1);
    $pfd->autoflush(1);
    my $cpid = fork;
    unless (defined($cpid)) { die "Fork error"; }
    unless ($cpid) {
      close($cfd);
      dompa($pfd,$mpa,\%mpahash,$command,-args=>@exargs);
      exit(0);
    }
    close ($pfd);
    $sub_fds->add($cfd);
  }
  while ($children > 0) {
    forward_data($callback,$sub_fds);
  }
  while (forward_data($callback,$sub_fds)) {}
}

sub forward_data {
  my $callback = shift;
  my $fds = shift;
  my @ready_fds = $fds->can_read(1);
  my $rfh;
  my $rc = @ready_fds;
  foreach $rfh (@ready_fds) {
    my $data;
    if ($data = <$rfh>) {
      while ($data !~ /ENDOFFREEZE6sK4ci/) {
        $data .= <$rfh>;
      }
      my $responses=thaw($data);
      foreach (@$responses) {
        $callback->($_);
      }
    } else {
      $fds->remove($rfh);
      close($rfh);
    }
  }
  return $rc;
}


sub dompa {
  my $out = shift;
  $mpa = shift;
  my $mpahash = shift;
  my $command=shift;
  my %namedargs=@_;
  my @exargs=$namedargs{-args};
  my $node;
  $session = new SNMP::Session(
                    DestHost => $mpa,
                    Version => '3',
                    SecName => $mpahash->{$mpa}->{username},
                    AuthProto => 'SHA',
                    AuthPass => $mpahash->{$mpa}->{password},
                    PrivProto => 'DES',
                    SecLevel => 'authPriv',
                    UseNumeric => 1,
                    Retries => 2, # Give up sooner to make commands go smoother
                    Timeout=>1200000, #Beacon, for one, takes a bit over a second to return
                    PrivPass => $mpahash->{$mpa}->{password});
  if ($session->{ErrorStr}) { return 1,$session->{ErrorStr}; }
  my $tmp = $session->get([$mmprimoid.".1"]);
  if ($session->{ErrorStr}) { print $session->{ErrorStr}; }
  $activemm = ($tmp ? 1 : 2);
  my @outhashes;
  if ($command eq "reventlog" and isallchassis) {
#Add a dummy node for eventlog to get non-blade events
    $mpahash{$mpa}->{nodes}->{$mpa}=-1;
  }
  foreach $node (sort (keys %{$mpahash->{$mpa}->{nodes}})) {
    my ($rc,@output) = bladecmd($mpa,$mpahash->{$mpa}->{nodes}->{$node},$command,@exargs);
    my @output_hashes;
    foreach(@output) {
      my %output;
      (my $desc,my $text) = split (/:/,$_,2);
      unless ($text) {
        $text=$desc;
      } else {
        $desc =~ s/^\s+//;
        $desc =~ s/\s+$//;
        if ($desc) {
          $output{node}->[0]->{data}->[0]->{desc}->[0]=$desc;
        }
      }
      $text =~ s/^\s+//;
      $text =~ s/\s+$//;
      $output{node}->[0]->{name}->[0]=$node;
      $output{node}->[0]->{data}->[0]->{contents}->[0]=$text;
      print $out freeze([\%output]);
      print $out "\nENDOFFREEZE6sK4ci\n";
    }
  }
  #my $msgtoparent=freeze(\@outhashes); # = XMLout(\%output,RootName => 'xcatresponse');
  #print $out $msgtoparent; #$node.": $_\n";
}
    
1;