23b9097e8f
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@2936 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
364 lines
10 KiB
Perl
364 lines
10 KiB
Perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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package xCAT_plugin::yaboot;
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use Data::Dumper;
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use Sys::Syslog;
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use xCAT::Scope;
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use File::Path;
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use Socket;
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my $request;
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my %breaknetbootnodes;
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my %normalnodes;
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my $callback;
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my $sub_req;
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my $dhcpconf = "/etc/dhcpd.conf";
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my $tftpdir = "/tftpboot";
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#my $dhcpver = 3;
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my %usage = (
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"nodeset" => "Usage: nodeset <noderange> [install|shell|boot|runcmd=bmcsetup|netboot|iscsiboot]",
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);
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sub handled_commands {
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return {
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nodeset => "noderes:netboot"
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}
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}
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sub check_dhcp {
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return 1;
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#TODO: omapi magic to do things right
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my $node = shift;
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my $dhcpfile;
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open ($dhcpfile,$dhcpconf);
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while (<$dhcpfile>) {
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if (/host $node\b/) {
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close $dhcpfile;
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return 1;
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}
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}
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close $dhcpfile;
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return 0;
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}
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sub getstate {
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my $node = shift;
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if (check_dhcp($node)) {
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if (-r $tftpdir . "/etc/".$node) {
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my $fhand;
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open ($fhand,$tftpdir . "/etc/".$node);
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my $headline = <$fhand>;
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close $fhand;
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$headline =~ s/^#//;
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chomp($headline);
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return $headline;
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} else {
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return "boot";
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}
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} else {
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return "discover";
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}
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}
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sub setstate {
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=pod
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This function will manipulate the yaboot structure to match what the noderes/chain tables indicate the node should be booting.
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=cut
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my $node = shift;
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my %bphash = %{shift()};
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my %chainhash = %{shift()};
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my %machash = %{shift()};
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my $kern = $bphash{$node}->[0]; #$bptab->getNodeAttribs($node,['kernel','initrd','kcmdline']);
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if ($kern->{kcmdline} =~ /!myipfn!/) {
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my $ipfn = xCAT::Utils->my_ip_facing($node);
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unless ($ipfn) {
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my @myself = xCAT::Utils->determinehostname();
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my $myname = $myself[(scalar @myself)-1];
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$callback->(
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{
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error => [
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"$myname: Unable to determine the image server for $node"
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],
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errorcode => [1]
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}
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);
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}
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$kern->{kcmdline} =~ s/!myipfn!/$ipfn/;
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}
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my $pcfg;
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unless (-d "$tftpdir/etc") {
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mkpath("$tftpdir/etc");
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}
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open($pcfg,'>',$tftpdir."/etc/".$node);
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my $cref=$chainhash{$node}->[0]; #$chaintab->getNodeAttribs($node,['currstate']);
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if ($cref->{currstate}) {
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print $pcfg "#".$cref->{currstate}."\n";
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}
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print $pcfg "timeout=5\n";
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$normalnodes{$node}=1; #Assume a normal netboot (well, normal dhcp,
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#which is normally with a valid 'filename' field,
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#but the typical ppc case will be 'special' makedhcp
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#to clear the filename field, so the logic is a little
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#opposite
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# $sub_req->({command=>['makedhcp'], #This is currently batched elswhere
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# node=>[$node]},$callback); #It hopefully will perform correctly
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if ($cref and $cref->{currstate} eq "boot") {
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$breaknetbootnodes{$node}=1;
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delete $normalnodes{$node}; #Signify to omit this from one makedhcp command
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#$sub_req->({command=>['makedhcp'], #batched elsewhere, this code is stale, hopefully
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# node=>[$node],
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# arg=>['-s','filename = \"xcat/nonexistant_file_to_intentionally_break_netboot_for_localboot_to_work\";']},$callback);
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print $pcfg "bye\n";
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close($pcfg);
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} elsif ($kern and $kern->{kernel}) {
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#It's time to set yaboot for this node to boot the kernel..
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print $pcfg "image=".$kern->{kernel}."\n\tlabel=xcat\n";
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if ($kern and $kern->{initrd}) {
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print $pcfg "\tinitrd=".$kern->{initrd}."\n";
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}
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if ($kern and $kern->{kcmdline}) {
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print $pcfg "\tappend=\"".$kern->{kcmdline}."\"\n";
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}
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close($pcfg);
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my $inetn = inet_aton($node);
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unless ($inetn) {
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syslog("local1|err","xCAT unable to resolve IP for $node in yaboot plugin");
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return;
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}
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} else { #TODO: actually, should possibly default to xCAT image?
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print $pcfg "bye\n";
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close($pcfg);
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}
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my $ip = inet_ntoa(inet_aton($node));;
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unless ($ip) {
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syslog("local1|err","xCAT unable to resolve IP in yaboot plugin");
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return;
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}
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my $mactab = xCAT::Table->new('mac');
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my %ipaddrs;
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$ipaddrs{$ip} = 1;
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if ($mactab) {
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my $ment = $machash{$node}->[0]; #$mactab->getNodeAttribs($node,['mac']);
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if ($ment and $ment->{mac}) {
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my @macs = split(/\|/,$ment->{mac});
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foreach (@macs) {
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if (/!(.*)/) {
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if (inet_aton($1)) {
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$ipaddrs{inet_ntoa(inet_aton($1))} = 1;
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}
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}
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}
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}
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}
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my $hassymlink = eval { symlink("",""); 1 };
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foreach $ip (keys %ipaddrs) {
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my @ipa=split(/\./,$ip);
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my $pname = sprintf("%02x%02x%02x%02x",@ipa);
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unlink($tftpdir."/etc/".$pname);
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if ($hassymlink) {
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symlink($node,$tftpdir."/etc/".$pname);
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} else {
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link($tftpdir."/etc/".$node,$tftpdir."/etc/".$pname);
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}
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}
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}
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my $errored = 0;
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sub pass_along {
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my $resp = shift;
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$callback->($resp);
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if ($resp and ($resp->{errorcode} and $resp->{errorcode}->[0]) or ($resp->{error} and $resp->{error}->[0])) {
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$errored=1;
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}
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foreach (@{$resp->{node}}) {
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if ($_->{error} or $_->{errorcode}) {
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$errored=1;
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}
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}
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}
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sub preprocess_request {
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#Assume shared tftp directory for boring people, but for cool people, help sync up tftpdirectory contents when
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#they specify no sharedtftp in site table
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my $stab = xCAT::Table->new('site');
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my $req = shift;
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my $sent = $stab->getAttribs({key=>'sharedtftp'},'value');
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if ($sent and ($sent->{value} == 0 or $sent->{value} =~ /no/i)) {
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$req->{'_disparatetftp'}=[1];
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return xCAT::Scope->get_broadcast_scope($req,@_);
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}
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return [$req];
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}
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#sub preprocess_request {
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# my $req = shift;
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# my $callback = shift;
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# my %localnodehash;
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# my %dispatchhash;
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# my $nrtab = xCAT::Table->new('noderes');
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# foreach my $node (@{$req->{node}}) {
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# my $nodeserver;
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# my $tent = $nrtab->getNodeAttribs($node,['tftpserver']);
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# if ($tent) { $nodeserver = $tent->{tftpserver} }
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# unless ($tent and $tent->{tftpserver}) {
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# $tent = $nrtab->getNodeAttribs($node,['servicenode']);
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# if ($tent) { $nodeserver = $tent->{servicenode} }
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# }
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# if ($nodeserver) {
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# $dispatchhash{$nodeserver}->{$node} = 1;
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# } else {
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# $localnodehash{$node} = 1;
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# }
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# }
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# my @requests;
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# my $reqc = {%$req};
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# $reqc->{node} = [ keys %localnodehash ];
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# if (scalar(@{$reqc->{node}})) { push @requests,$reqc }
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#
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# foreach my $dtarg (keys %dispatchhash) { #iterate dispatch targets
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# my $reqcopy = {%$req}; #deep copy
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# $reqcopy->{'_xcatdest'} = $dtarg;
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# $reqcopy->{node} = [ keys %{$dispatchhash{$dtarg}}];
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# push @requests,$reqcopy;
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# }
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# return \@requests;
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#}
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#
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sub process_request {
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$request = shift;
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$callback = shift;
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$sub_req = shift;
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%breaknetbootnodes=();
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%normalnodes=();
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my @args;
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my @nodes;
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my @rnodes;
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if (ref($request->{node})) {
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@rnodes = @{$request->{node}};
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} else {
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if ($request->{node}) { @rnodes = ($request->{node}); }
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}
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unless (@rnodes) {
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if ($usage{$request->{command}->[0]}) {
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$callback->({data=>$usage{$request->{command}->[0]}});
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}
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return;
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}
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#back to normal business
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#if not shared tftpdir, then filter, otherwise, set up everything
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if ($req->{_disparatetftp}) { #reading hint from preprocess_command
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@nodes = ();
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foreach (@rnodes) {
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if (xCAT::Utils->nodeonmynet($_)) {
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push @nodes,$_;
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}
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}
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} else {
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@nodes = @rnodes;
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}
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if (ref($request->{arg})) {
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@args=@{$request->{arg}};
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} else {
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@args=($request->{arg});
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}
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if(scalar grep /^--version$|^-v$/, @args) {
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my $ver = xCAT::Utils->Version();
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my %rsp;
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$rsp{data}->[0]="$ver";
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$callback->(\%rsp);
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return;
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}
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if(scalar grep /^--help$|^-h$/, @args) {
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if($usage{$request->{command}->[0]}) {
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my %rsp;
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$rsp{data}->[0]=$usage{$request->{command}->[0]};
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$callback->(\%rsp);
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}
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return;
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}
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unless ($args[0] eq 'stat' or $args[0] eq 'enact') {
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$sub_req->({command=>['setdestiny'],
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node=>\@nodes,
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arg=>[$args[0]]},\&pass_along);
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}
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if ($errored) { return; }
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my $bptab=xCAT::Table->new('bootparams',-create=>1);
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my $bphash = $bptab->getNodesAttribs(\@nodes,['kernel','initrd','kcmdline']);
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my $chaintab=xCAT::Table->new('chain',-create=>1);
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my $chainhash=$chaintab->getNodesAttribs(\@nodes,['currstate']);
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my $mactab=xCAT::Table->new('mac',-create=>1);
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my $machash=$mactab->getNodesAttribs(\@nodes,['mac']);
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my $rc;
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my $errstr;
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foreach (@nodes) {
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my %response;
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$response{node}->[0]->{name}->[0]=$_;
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if ($args[0] eq 'stat') {
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$response{node}->[0]->{data}->[0]= getstate($_);
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$callback->(\%response);
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} elsif ($args[0]) { #If anything else, send it on to the destiny plugin, then setstate
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($rc,$errstr) = setstate($_,$bphash,$chainhash,$machash);
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if ($rc) {
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$response{node}->[0]->{errorcode}->[0]= $rc;
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$response{node}->[0]->{errorc}->[0]= $errstr;
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$callback->(\%response);
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}
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}
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}
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my @normalnodeset = keys %normalnodes;
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$sub_req->({command=>['makedhcp'],
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node=>\@normalnodeset},$callback);
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my @breaknetboot=keys %breaknetbootnodes;
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$sub_req->({command=>['makedhcp'],
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node=>\@breaknetboot,
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arg=>['-s','filename = \"xcat/nonexistant_file_to_intentionally_break_netboot_for_localboot_to_work\";']},$callback);
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}
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#----------------------------------------------------------------------------
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=head3 getNodesetStates
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returns the nodeset state for the given nodes. The possible nodeset
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states are: netboot, install, boot and discover.
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Arguments:
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nodes --- a pointer to an array of nodes
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states -- a pointer to a hash table. This hash will be filled by this
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function node and key and the nodeset stat as the value.
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Returns:
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(return code, error message)
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=cut
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#-----------------------------------------------------------------------------
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sub getNodesetStates {
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my $noderef=shift;
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if ($noderef =~ /xCAT_plugin::yaboot/) {
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$noderef=shift;
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}
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my @nodes=@$noderef;
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my $hashref=shift;
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if (@nodes>0) {
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foreach my $node (@nodes) {
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my $tmp=getstate($node);
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my @a=split(' ', $tmp);
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$stat = $a[0];
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$hashref->{$node}=$stat;
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}
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}
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return (0, "");
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}
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1;
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