# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
package xCAT_plugin::yaboot;
use Data::Dumper;
use Sys::Syslog;
use xCAT::Scope;
use xCAT::NetworkUtils;
use xCAT::MsgUtils;
use File::Path;
use Socket;
use Getopt::Long;
my $request;
my %breaknetbootnodes;
my %normalnodes;
my $callback;
my $sub_req;
my $dhcpconf = "/etc/dhcpd.conf";
my $globaltftpdir = xCAT::Utils->getTftpDir();
#my $dhcpver = 3;
my %usage = (
"nodeset" => "Usage: nodeset <noderange> [install|shell|boot|runcmd=bmcsetup|netboot|iscsiboot|osimage=<imagename>|offline]",
);
sub handled_commands {
return {
nodeset => "noderes:netboot"
}
}
sub check_dhcp {
return 1;
#TODO: omapi magic to do things right
my $node = shift;
my $dhcpfile;
open ($dhcpfile,$dhcpconf);
while (<$dhcpfile>) {
if (/host $node\b/) {
close $dhcpfile;
return 1;
}
}
close $dhcpfile;
return 0;
}
sub _slow_get_tftpdir { #make up for paths where tftpdir is not passed in
my $node = shift;
my $nrtab = xCAT::Table->new('noderes',-create=>0); #in order to detect per-node tftp directories
unless ($nrtab) { return $globaltftpdir; }
my $ent = $nrtab->getNodeAttribs($node,["tftpdir"]);
if ($ent and $ent->{tftpdir}) {
return $ent->{tftpdir};
} else {
return $globaltftpdir;
}
}
sub getstate {
my $node = shift;
my $tftpdir = shift;
unless ($tftpdir) { $tftpdir = _slow_get_tftpdir($node); }
if (check_dhcp($node)) {
if (-r $tftpdir . "/etc/".$node) {
my $fhand;
open ($fhand,$tftpdir . "/etc/".$node);
my $headline = <$fhand>;
close $fhand;
$headline =~ s/^#//;
chomp($headline);
return $headline;
} else {
return "boot";
}
} else {
return "discover";
}
}
sub setstate {
=pod
This function will manipulate the yaboot structure to match what the noderes/chain tables indicate the node should be booting.
=cut
my $node = shift;
my %bphash = %{shift()};
my %chainhash = %{shift()};
my %machash = %{shift()};
my $tftpdir = shift;
my %nrhash = %{shift()};
my $kern = $bphash{$node}->[0]; #$bptab->getNodeAttribs($node,['kernel','initrd','kcmdline']);
if ($kern->{kcmdline} =~ /!myipfn!/) {
my $ipfn = xCAT::Utils->my_ip_facing($node);
unless ($ipfn) {
my $servicenodes = $nrhash{$node}->[0];
if ($servicenodes and $servicenodes->{servicenode}) {
my @sns = split /,/, $servicenodes->{servicenode};
foreach my $sn ( @sns ) {
# We are in the service node pools, print error if no facing ip.
if (xCAT::InstUtils->is_me($sn)) {
my @myself = xCAT::Utils->determinehostname();
my $myname = $myself[(scalar @myself)-1];
$callback->(
{
error => [
"$myname: Unable to determine the image server for $node on service node $sn"
],
errorcode => [1]
}
);
return;
}
}
} else {
$callback->(
{
error => [
"$myname: Unable to determine the image server for $node"
],
errorcode => [1]
}
);
return;
}
} else {
$kern->{kcmdline} =~ s/!myipfn!/$ipfn/g;
}
}
if ($kern->{addkcmdline}) {
$kern->{kcmdline} .= " ".$kern->{addkcmdline};
}
my $pcfg;
unless (-d "$tftpdir/etc") {
mkpath("$tftpdir/etc");
}
my %client_nethash = xCAT::DBobjUtils->getNetwkInfo( [$node] );
if ( $client_nethash{$node}{mgtifname} =~ /hf/ ) {
my $mactab = xCAT::Table->new('mac');
if ($mactab) {
my $ment = $machash{$node}->[0]; #$mactab->getNodeAttribs($node,['mac']);
if ($ment and $ment->{mac}) {
my @macs = split(/\|/,$ment->{mac});
my $count = 0;
foreach my $mac (@macs) {
if ( $mac !~ /!(.*)/) {
my $hostname;
if ( $node !~ /^(.*)-hf(.*)$/ ) {
$hostname = $node . "-hf" . $count;
} else {
$hostname = $1 . "-hf" . $count;
}
open($pcfg,'>',$tftpdir."/etc/".$hostname);
my $cref=$chainhash{$node}->[0]; #$chaintab->getNodeAttribs($node,['currstate']);
if ($cref->{currstate}) {
print $pcfg "#".$cref->{currstate}."\n";
}
print $pcfg "timeout=5\n";
$normalnodes{$node}=1;
if ($cref and $cref->{currstate} eq "boot") {
$breaknetbootnodes{$node}=1;
delete $normalnodes{$node}; #Signify to omit this from one makedhcp command
#$sub_req->({command=>['makedhcp'], #batched elsewhere, this code is stale, hopefully
# node=>[$node],
# arg=>['-s','filename = \"xcat/nonexistant_file_to_intentionally_break_netboot_for_localboot_to_work\";']},$callback);
print $pcfg "bye\n";
close($pcfg);
} elsif ($kern and $kern->{kernel}) {
#It's time to set yaboot for this node to boot the kernel..
print $pcfg "image=".$kern->{kernel}."\n\tlabel=xcat\n";
if ($kern and $kern->{initrd}) {
print $pcfg "\tinitrd=".$kern->{initrd}."\n";
}
if ($kern and $kern->{kcmdline}) {
my $kcmdline = $kern->{kcmdline};
$kcmdline =~ s/(.*ifname=.*):@macs->[0].*( netdev.*)/$1:$mac$2/g;
print $pcfg "\tappend=\"".$kcmdline."\"\n";
}
close($pcfg);
my $inetn = xCAT::NetworkUtils->getipaddr($node);
unless ($inetn) {
syslog("local1|err","xCAT unable to resolve IP for $node in yaboot plugin");
return;
}
} else { #TODO: actually, should possibly default to xCAT image?
print $pcfg "bye\n";
close($pcfg);
}
if ($mac =~ /:/) {
my $tmp = $mac;
$tmp =~ s/(..):(..):(..):(..):(..):(..)/$1-$2-$3-$4-$5-$6/g;
my $pname = "25-" . $tmp;
unlink($tftpdir."/etc/".$pname);
link($tftpdir."/etc/".$hostname,$tftpdir."/etc/".$pname);
}
}
$count = $count + 2;
}
}
}
} else {
open($pcfg,'>',$tftpdir."/etc/".$node);
my $cref=$chainhash{$node}->[0]; #$chaintab->getNodeAttribs($node,['currstate']);
if ($cref->{currstate}) {
print $pcfg "#".$cref->{currstate}."\n";
}
print $pcfg "timeout=5\n";
$normalnodes{$node}=1; #Assume a normal netboot (well, normal dhcp,
#which is normally with a valid 'filename' field,
#but the typical ppc case will be 'special' makedhcp
#to clear the filename field, so the logic is a little
#opposite
# $sub_req->({command=>['makedhcp'], #This is currently batched elswhere
# node=>[$node]},$callback); #It hopefully will perform correctly
if ($cref and $cref->{currstate} eq "boot") {
$breaknetbootnodes{$node}=1;
delete $normalnodes{$node}; #Signify to omit this from one makedhcp command
#$sub_req->({command=>['makedhcp'], #batched elsewhere, this code is stale, hopefully
# node=>[$node],
# arg=>['-s','filename = \"xcat/nonexistant_file_to_intentionally_break_netboot_for_localboot_to_work\";']},$callback);
print $pcfg "bye\n";
close($pcfg);
} elsif ($kern and $kern->{kernel}) {
#It's time to set yaboot for this node to boot the kernel..
print $pcfg "image=".$kern->{kernel}."\n\tlabel=xcat\n";
if ($kern and $kern->{initrd}) {
print $pcfg "\tinitrd=".$kern->{initrd}."\n";
}
if ($kern and $kern->{kcmdline}) {
print $pcfg "\tappend=\"".$kern->{kcmdline}."\"\n";
}
close($pcfg);
my $inetn = xCAT::NetworkUtils->getipaddr($node);
unless ($inetn) {
syslog("local1|err","xCAT unable to resolve IP for $node in yaboot plugin");
return;
}
} else { #TODO: actually, should possibly default to xCAT image?
print $pcfg "bye\n";
close($pcfg);
}
my $ip = xCAT::NetworkUtils->getipaddr($node);
unless ($ip) {
syslog("local1|err","xCAT unable to resolve IP in yaboot plugin");
return;
}
my $mactab = xCAT::Table->new('mac');
my %ipaddrs;
$ipaddrs{$ip} = 1;
if ($mactab) {
my $ment = $machash{$node}->[0]; #$mactab->getNodeAttribs($node,['mac']);
if ($ment and $ment->{mac}) {
my @macs = split(/\|/,$ment->{mac});
foreach (@macs) {
if (/!(.*)/) {
my $ipaddr = xCAT::NetworkUtils->getipaddr($1);
if ($ipaddr) {
$ipaddrs{$ipaddr} = 1;
}
}
}
}
}
# Do not use symbolic link, p5 does not support symbolic link in /tftpboot
# my $hassymlink = eval { symlink("",""); 1 };
foreach $ip (keys %ipaddrs) {
my @ipa=split(/\./,$ip);
my $pname = sprintf("%02x%02x%02x%02x",@ipa);
unlink($tftpdir."/etc/".$pname);
link($tftpdir."/etc/".$node,$tftpdir."/etc/".$pname);
}
}
}
my $errored = 0;
sub pass_along {
my $resp = shift;
# print Dumper($resp);
$callback->($resp);
if ($resp and ($resp->{errorcode} and $resp->{errorcode}->[0]) or ($resp->{error} and $resp->{error}->[0])) {
$errored=1;
}
foreach (@{$resp->{node}}) {
if ($_->{error} or $_->{errorcode}) {
$errored=1;
}
}
}
sub preprocess_request {
my $req = shift;
if ($req->{_xcatpreprocessed}->[0] == 1) { return [$req]; }
my $callback1 = shift;
my $command = $req->{command}->[0];
my $sub_req = shift;
my @args=();
if (ref($req->{arg})) {
@args=@{$req->{arg}};
} else {
@args=($req->{arg});
}
@ARGV = @args;
#use Getopt::Long;
Getopt::Long::Configure("bundling");
Getopt::Long::Configure("pass_through");
if (!GetOptions('h|?|help' => \$HELP, 'v|version' => \$VERSION) ) {
if($usage{$command}) {
my %rsp;
$rsp{data}->[0]=$usage{$command};
$callback1->(\%rsp);
}
return;
}
if ($HELP) {
if($usage{$command}) {
my %rsp;
$rsp{data}->[0]=$usage{$command};
$callback1->(\%rsp);
}
return;
}
if ($VERSION) {
my $ver = xCAT::Utils->Version();
my %rsp;
$rsp{data}->[0]="$ver";
$callback1->(\%rsp);
return;
}
if (@ARGV==0) {
if($usage{$command}) {
my %rsp;
$rsp{data}->[0]=$usage{$command};
$callback1->(\%rsp);
}
return;
}
#Assume shared tftp directory for boring people, but for cool people, help sync up tftpdirectory contents when
#they specify no sharedtftp in site table
my $stab = xCAT::Table->new('site');
my $sent = $stab->getAttribs({key=>'sharedtftp'},'value');
if ($sent and ($sent->{value} == 0 or $sent->{value} =~ /no/i)) {
$req->{'_disparatetftp'}=[1];
if ($req->{inittime}->[0]) {
return [$req];
}
return xCAT::Scope->get_broadcast_scope($req,@_);
}
return [$req];
}
#sub preprocess_request {
# my $req = shift;
# my $callback = shift;
# my %localnodehash;
# my %dispatchhash;
# my $nrtab = xCAT::Table->new('noderes');
# foreach my $node (@{$req->{node}}) {
# my $nodeserver;
# my $tent = $nrtab->getNodeAttribs($node,['tftpserver']);
# if ($tent) { $nodeserver = $tent->{tftpserver} }
# unless ($tent and $tent->{tftpserver}) {
# $tent = $nrtab->getNodeAttribs($node,['servicenode']);
# if ($tent) { $nodeserver = $tent->{servicenode} }
# }
# if ($nodeserver) {
# $dispatchhash{$nodeserver}->{$node} = 1;
# } else {
# $localnodehash{$node} = 1;
# }
# }
# my @requests;
# my $reqc = {%$req};
# $reqc->{node} = [ keys %localnodehash ];
# if (scalar(@{$reqc->{node}})) { push @requests,$reqc }
#
# foreach my $dtarg (keys %dispatchhash) { #iterate dispatch targets
# my $reqcopy = {%$req}; #deep copy
# $reqcopy->{'_xcatdest'} = $dtarg;
# $reqcopy->{node} = [ keys %{$dispatchhash{$dtarg}}];
# push @requests,$reqcopy;
# }
# return \@requests;
#}
#
sub process_request {
$request = shift;
$callback = shift;
$sub_req = shift;
my $command = $request->{command}->[0];
%breaknetbootnodes=();
%normalnodes=();
my @args;
my @nodes;
my @rnodes;
if (ref($request->{node})) {
@rnodes = @{$request->{node}};
} else {
if ($request->{node}) { @rnodes = ($request->{node}); }
}
unless (@rnodes) {
if ($usage{$request->{command}->[0]}) {
$callback->({data=>$usage{$request->{command}->[0]}});
}
return;
}
#if not shared tftpdir, then filter, otherwise, set up everything
if ($request->{'_disparatetftp'}->[0]) { #reading hint from preprocess_command
@nodes = ();
foreach (@rnodes) {
if (xCAT::Utils->nodeonmynet($_)) {
push @nodes,$_;
} else {
xCAT::MsgUtils->message("S", "$_: yaboot netboot: stop configuration because of none sharedtftp and not on same network with its xcatmaster.");
}
}
} else {
@nodes = @rnodes;
}
# return directly if no nodes in the same network
unless (@nodes) {
xCAT::MsgUtils->message("S", "xCAT: yaboot netboot: no valid nodes. Stop the operation on this server.");
return;
}
if (ref($request->{arg})) {
@args=@{$request->{arg}};
} else {
@args=($request->{arg});
}
#now run the begin part of the prescripts
unless ($args[0] eq 'stat') { # or $args[0] eq 'enact') {
$errored=0;
if ($request->{'_disparatetftp'}->[0]) { #the call is distrubuted to the service node already, so only need to handles my own children
$sub_req->({command=>['runbeginpre'],
node=>\@nodes,
arg=>[$args[0], '-l']},\&pass_along);
} else { #nodeset did not distribute to the service node, here we need to let runednpre to distribute the nodes to their masters
$sub_req->({command=>['runbeginpre'],
node=>\@rnodes,
arg=>[$args[0]]},\&pass_along);
}
if ($errored) {
my $rsp;
$rsp->{errorcode}->[0]=1;
$rsp->{error}->[0]="Failed in running begin prescripts.\n";
$callback->($rsp);
return;
}
}
#back to normal business
my $inittime=0;
if (exists($request->{inittime})) { $inittime= $request->{inittime}->[0];}
if (!$inittime) { $inittime=0;}
$errored=0;
unless ($args[0] eq 'stat') { # or $args[0] eq 'enact') {
$sub_req->({command=>['setdestiny'],
node=>\@nodes,
inittime=>[$inittime],
arg=>[$args[0]]},\&pass_along);
}
if ($errored) { return; }
my $bptab=xCAT::Table->new('bootparams',-create=>1);
my $bphash = $bptab->getNodesAttribs(\@nodes,['kernel','initrd','kcmdline','addkcmdline']);
my $chaintab=xCAT::Table->new('chain',-create=>1);
my $chainhash=$chaintab->getNodesAttribs(\@nodes,['currstate']);
my $noderestab=xCAT::Table->new('noderes',-create=>1);
my $nodereshash=$noderestab->getNodesAttribs(\@nodes,['tftpdir']);
my $mactab=xCAT::Table->new('mac',-create=>1);
my $machash=$mactab->getNodesAttribs(\@nodes,['mac']);
my $nrtab=xCAT::Table->new('noderes',-create=>1);
my $nrhash=$nrtab->getNodesAttribs(\@nodes,['servicenode']);
my $rc;
my $errstr;
foreach (@nodes) {
my %response;
my $tftpdir;
if ($nodereshash->{$_} and $nodereshash->{$_}->[0] and $nodereshash->{$_}->[0]->{tftpdir}) {
$tftpdir = $nodereshash->{$_}->[0]->{tftpdir};
} else {
$tftpdir = $globaltftpdir;
}
$response{node}->[0]->{name}->[0]=$_;
if ($args[0] eq 'stat') {
$response{node}->[0]->{data}->[0]= getstate($_,$tftpdir);
$callback->(\%response);
} elsif ($args[0]) { #If anything else, send it on to the destiny plugin, then setstate
($rc,$errstr) = setstate($_,$bphash,$chainhash,$machash,$tftpdir,$nrhash);
if ($rc) {
$response{node}->[0]->{errorcode}->[0]= $rc;
$response{node}->[0]->{errorc}->[0]= $errstr;
$callback->(\%response);
}
}
}
my @normalnodeset = keys %normalnodes;
my @breaknetboot=keys %breaknetbootnodes;
#print "yaboot:inittime=$inittime; normalnodeset=@normalnodeset; breaknetboot=@breaknetboot\n";
#Don't bother to try dhcp binding changes if sub_req not passed, i.e. service node build time
unless (($args[0] eq 'stat') || ($inittime) || ($args[0] eq 'offline')) {
#dhcp stuff
my $do_dhcpsetup=1;
my $sitetab = xCAT::Table->new('site');
if ($sitetab) {
(my $ref) = $sitetab->getAttribs({key => 'dhcpsetup'}, 'value');
if ($ref) {
if ($ref->{value} =~ /0|n|N/) { $do_dhcpsetup=0; }
}
}
if ($do_dhcpsetup) {
if ($request->{'_disparatetftp'}->[0]) { #reading hint from preprocess_command, only change local settings if already farmed
$sub_req->({command=>['makedhcp'],arg=>['-l'],
node=>\@normalnodeset},$callback);
} else {
$sub_req->({command=>['makedhcp'],
node=>\@normalnodeset},$callback);
}
if ($request->{'_disparatetftp'}->[0]) { #reading hint from preprocess_command
$sub_req->({command=>['makedhcp'],
node=>\@breaknetboot,
arg=>['-l','-s','filename = \"xcat/nonexistant_file_to_intentionally_break_netboot_for_localboot_to_work\";']},$callback);
} else {
$sub_req->({command=>['makedhcp'],
node=>\@breaknetboot,
arg=>['-s','filename = \"xcat/nonexistant_file_to_intentionally_break_netboot_for_localboot_to_work\";']},$callback);
}
}
}
#now run the end part of the prescripts
unless ($args[0] eq 'stat') { # or $args[0] eq 'enact')
$errored=0;
if ($request->{'_disparatetftp'}->[0]) { #the call is distrubuted to the service node already, so only need to handles my own children
$sub_req->({command=>['runendpre'],
node=>\@nodes,
arg=>[$args[0], '-l']},\&pass_along);
} else { #nodeset did not distribute to the service node, here we need to let runednpre to distribute the nodes to their masters
$sub_req->({command=>['runendpre'],
node=>\@rnodes,
arg=>[$args[0]]},\&pass_along);
}
if ($errored) {
my $rsp;
$rsp->{errorcode}->[0]=1;
$rsp->{error}->[0]="Failed in running end prescripts\n";
$callback->($rsp);
return;
}
}
}
#----------------------------------------------------------------------------
=head3 getNodesetStates
returns the nodeset state for the given nodes. The possible nodeset
states are: netboot, install, boot and discover.
Arguments:
nodes --- a pointer to an array of nodes
states -- a pointer to a hash table. This hash will be filled by this
function.The key is the nodeset status and the value is a pointer
to an array of nodes.
Returns:
(return code, error message)
=cut
#-----------------------------------------------------------------------------
sub getNodesetStates {
my $noderef=shift;
if ($noderef =~ /xCAT_plugin::yaboot/) {
$noderef=shift;
}
my @nodes=@$noderef;
my $hashref=shift;
my $noderestab = xCAT::Table->new('noderes'); #in order to detect per-node tftp directories
my %nrhash = %{$noderestab->getNodesAttribs(\@nodes,[qw(tftpdir)])};
if (@nodes>0) {
foreach my $node (@nodes) {
my $tftpdir;
if ($nrhash{$node}->[0] and $nrhash{$node}->[0]->{tftpdir}) {
$tftpdir = $nrhash{$node}->[0]->{tftpdir};
} else {
$tftpdir = $globaltftpdir;
}
my $tmp=getstate($node, $tftpdir);
my @a=split(' ', $tmp);
$stat = $a[0];
if (exists($hashref->{$stat})) {
my $pa=$hashref->{$stat};
push(@$pa, $node);
}
else {
$hashref->{$stat}=[$node];
}
}
}
return (0, "");
}
1;