mirror of
https://github.com/xcat2/xcat-core.git
synced 2025-10-31 19:32:31 +00:00
afa886e729
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@16590 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
353 lines
15 KiB
Perl
353 lines
15 KiB
Perl
#!/usr/bin/env perl
|
|
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
|
|
package xCAT_plugin::nodediscover;
|
|
use xCAT::Table;
|
|
use IO::Socket;
|
|
use strict;
|
|
|
|
use XML::Simple;
|
|
$XML::Simple::PREFERRED_PARSER='XML::Parser';
|
|
use Data::Dumper;
|
|
use POSIX "WNOHANG";
|
|
use Storable qw(freeze thaw);
|
|
use IO::Select;
|
|
use IO::Handle;
|
|
use xCAT::Utils;
|
|
use Sys::Syslog;
|
|
use Text::Balanced qw(extract_bracketed);
|
|
|
|
use xCAT::DiscoveryUtils;
|
|
|
|
|
|
sub gethosttag {
|
|
#This function tries to return a good hostname for a node based on the
|
|
#network to which it is connected (by $netn or maybe $ifname)
|
|
#heuristic:
|
|
#if the client had a valid IP address from a dhcp server, that is used as key
|
|
#once the matching network is found, and an explicit mapping defined, try that
|
|
#next, try to see if the ip for the case where hostname==nodename is on this net, if so, return that
|
|
#next, try to do nodename-ifname, return that if successful
|
|
#next, repeat process for all networks that have the common mgtifname field
|
|
#return undef for now if none of the above worked
|
|
my $node = shift;
|
|
my $netn = shift;
|
|
my $ifname = shift;
|
|
my $usednames = shift;
|
|
my %netmap = %{xCAT::NetworkUtils::my_if_netmap()};
|
|
my $mgtifname = $netmap{$netn};
|
|
my $secondpass = 0;
|
|
my $name = "";
|
|
my $defhost = inet_aton($node);
|
|
my $nettab = xCAT::Table->new('networks');
|
|
my $defn="";
|
|
my @netents = @{$nettab->getAllEntries()};
|
|
my $pass;
|
|
#TODO: mgtifname field will get trounced in hierarchical setup, use a live check to match accurately
|
|
foreach (@netents) {
|
|
if ($_->{net} eq $netn or ($mgtifname and $mgtifname eq $netmap{$_->{net}})) { #either is the network or shares physical interface
|
|
if ($_->{nodehostname}) { #Check for a nodehostname rule in the table
|
|
$name = $node;
|
|
if ($_->{nodehostname} =~ /^\/[^\/]*\/[^\/]*\/$/) {
|
|
my $exp = substr($_->{nodehostname}, 1);
|
|
chop $exp;
|
|
my @parts = split('/', $exp, 2);
|
|
$name =~ s/$parts[0]/$parts[1]/;
|
|
}
|
|
elsif ($_->{nodehostname} =~ /^\|.*\|.*\|$/) {
|
|
#Perform arithmetic and only arithmetic operations in bracketed issues on the right.
|
|
#Tricky part: don't allow potentially dangerous code, only eval if
|
|
#to-be-evaled expression is only made up of ()\d+-/%$
|
|
#Futher paranoia? use Safe module to make sure I'm good
|
|
my $exp = substr($_->{nodehostname}, 1);
|
|
chop $exp;
|
|
my @parts = split('\|', $exp, 2);
|
|
my $curr;
|
|
my $next;
|
|
my $prev;
|
|
my $retval = $parts[1];
|
|
($curr, $next, $prev) =
|
|
extract_bracketed($retval, '()', qr/[^()]*/);
|
|
|
|
unless($curr) { #If there were no paramaters to save, treat this one like a plain regex
|
|
$name =~ s/$parts[0]/$parts[1]/;
|
|
}
|
|
while ($curr) {
|
|
#my $next = $comps[0];
|
|
if ($curr =~ /^[\{\}()\-\+\/\%\*\$\d]+$/ or $curr =~ /^\(sprintf\(["'%\dcsduoxefg]+,\s*[\{\}()\-\+\/\%\*\$\d]+\)\)$/ )
|
|
{
|
|
use integer;
|
|
#We only allow integer operations, they are the ones that make sense for the application
|
|
my $value = $name;
|
|
$value =~ s/$parts[0]/$curr/ee;
|
|
$retval = $prev . $value . $next;
|
|
}
|
|
else {
|
|
print "$curr is bad\n";
|
|
}
|
|
($curr, $next, $prev) =
|
|
extract_bracketed($retval, '()', qr/[^()]*/);
|
|
}
|
|
#At this point, $retval is the expression after being arithmetically contemplated, a generated regex, and therefore
|
|
#must be applied in total
|
|
$name =~ s/$parts[0]/$retval/;
|
|
|
|
#print Data::Dumper::Dumper(extract_bracketed($parts[1],'()',qr/[^()]*/));
|
|
#use text::balanced extract_bracketed to parse earch atom, make sure nothing but arith operators, parans, and numbers are in it to guard against code execution
|
|
}
|
|
|
|
print "Name: $name\n";
|
|
|
|
#$name =~ s/$left/$right/;
|
|
if ($name and inet_aton($name)) {
|
|
if ($netn eq $_->{net} and not $usednames->{$name}) { return $name; }
|
|
#At this point, it could still be valid if block was entered due to mgtifname
|
|
my $nnetn = inet_ntoa(pack("N",unpack("N",inet_aton($name)) & unpack("N",inet_aton($_->{mask}))));
|
|
if ($nnetn eq $_->{net} and not $usednames->{$name}) { return $name; }
|
|
}
|
|
$name=""; #Still here, this branch failed
|
|
}
|
|
$defn="";
|
|
if ($defhost) {
|
|
$defn = inet_ntoa(pack("N",unpack("N",$defhost) & unpack("N",inet_aton($_->{mask}))));
|
|
}
|
|
if ($defn eq $_->{net} and not $usednames->{$node}) { #the default nodename is on this network
|
|
return $node;
|
|
}
|
|
my $tentativehost = $node . "-".$ifname;
|
|
my $tnh = inet_aton($tentativehost);
|
|
if ($tnh) {
|
|
my $nnetn = inet_ntoa(pack("N",unpack("N",$tnh) & unpack("N",inet_aton($_->{mask}))));
|
|
if ($nnetn eq $_->{net} and not $usednames->{$tentativehost}) {
|
|
return $tentativehost;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sub handled_commands {
|
|
return {
|
|
#discovered => 'chain:ondiscover',
|
|
discovered => 'nodediscover',
|
|
};
|
|
}
|
|
sub process_request {
|
|
my $request = shift;
|
|
my $callback = shift;
|
|
my $doreq = shift;
|
|
my $node = $request->{node}->[0];
|
|
my $clientip = $request->{'_xcat_clientip'};
|
|
openlog("xCAT node discovery",'','local0');
|
|
|
|
|
|
#First, fill in tables with data fields..
|
|
if (defined($request->{mtm}) or defined($request->{serial})) {
|
|
my $vpdtab = xCAT::Table->new("vpd",-create=>1);
|
|
if ($request->{uuid}->[0]) {
|
|
$vpdtab->setNodeAttribs($node,{uuid=>$request->{uuid}->[0]});
|
|
}
|
|
if ($request->{mtm}->[0]) {
|
|
$vpdtab->setNodeAttribs($node,{mtm=>$request->{mtm}->[0]});
|
|
}
|
|
if ($request->{serial}) {
|
|
$vpdtab->setNodeAttribs($node,{serial=>$request->{serial}->[0]});
|
|
}
|
|
}
|
|
my $nrtab;
|
|
my @discoverynics;
|
|
my @forcenics; #list of 'eth' style interface names to require to come up on post-discovery client dhcp restart
|
|
if (defined($request->{arch})) {
|
|
#Set the architecture in nodetype. If 32-bit only x86 or ppc detected, overwrite. If x86_64, only set if either not set or not an x86 family
|
|
my $typetab=xCAT::Table->new("nodetype",-create=>1);
|
|
(my $nent) = $typetab->getNodeAttribs($node,['arch','supportedarchs']);
|
|
if ($request->{arch}->[0] =~ /x86_64/) {
|
|
if ($nent and ($nent->{arch} =~ /x86/)) { #If already an x86 variant, do not change
|
|
unless ($nent and $nent->{supportedarchs} =~ /x86_64/) {
|
|
$typetab->setNodeAttribs($node,{supportedarchs=>"x86,x86_64"});
|
|
}
|
|
} else {
|
|
$typetab->setNodeAttribs($node,{arch=>$request->{arch}->[0],supportedarchs=>"x86,x86_64"});
|
|
#this check is so that if an admin explicitly declares a node 'x86', the 64 bit capability is ignored
|
|
}
|
|
} else {
|
|
unless ($nent and $nent->{supportedarchs} eq $request->{arch}->[0] and $nent->{arch} eq $request->{arch}->[0]) {
|
|
$typetab->setNodeAttribs($node,{arch=>$request->{arch}->[0],supportedarchs=>$request->{arch}->[0]});
|
|
}
|
|
}
|
|
my $currboot='';
|
|
$nrtab = xCAT::Table->new('noderes'); #Attempt to check and set if wrong the netboot method on discovery, if admin omitted
|
|
(my $rent) = $nrtab->getNodeAttribs($node,['netboot','discoverynics']);
|
|
if ($rent and defined $rent->{discoverynics}) {
|
|
@discoverynics=split /,/,$rent->{discoverynics};
|
|
}
|
|
if ($rent and $rent->{'netboot'}) {
|
|
$currboot=$rent->{'netboot'};
|
|
}
|
|
if ($request->{arch}->[0] =~ /x86/ and $currboot !~ /pxe/ and $currboot !~ /xnba/) {
|
|
$nrtab->setNodeAttribs($node,{netboot=>'xnba'});
|
|
} elsif ($request->{arch}->[0] =~ /ppc/ and $currboot !~ /yaboot/) {
|
|
$nrtab->setNodeAttribs($node,{netboot=>'yaboot'});
|
|
}
|
|
}
|
|
|
|
my $macstring = "";
|
|
if (defined($request->{mac})) {
|
|
my $mactab = xCAT::Table->new("mac",-create=>1);
|
|
my @ifinfo;
|
|
my %usednames;
|
|
my %bydriverindex;
|
|
my $forcenic=0; #-1 is force skip, 0 is use default behavior, 1 is force to be declared even if hosttag is skipped to do so
|
|
foreach (@{$request->{mac}}) {
|
|
@ifinfo = split /\|/;
|
|
if ($ifinfo[1] eq 'usb0') { #skip usb nic
|
|
next;
|
|
}
|
|
$bydriverindex{$ifinfo[0]} += 1;
|
|
if (scalar @discoverynics) {
|
|
$forcenic=-1; #$forcenic defaults to explicitly skip nic
|
|
foreach my $nic (@discoverynics) {
|
|
if ($nic =~ /:/) { #syntax like 'bnx2:0' to say the first bnx2 managed interface
|
|
(my $driver,my $index) = split /:/,$nic;
|
|
if ($driver eq $ifinfo[0] and $index == ($bydriverindex{$driver}-1)) {
|
|
$forcenic=1; #force nic to be put into database
|
|
push @forcenics,$ifinfo[1];
|
|
last;
|
|
}
|
|
} else { #simple 'eth2' sort of argument
|
|
if ($nic eq $ifinfo[1]) {
|
|
push @forcenics,$ifinfo[1];
|
|
$forcenic=1;
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ($forcenic == -1) { #if force to skip, go to next nic
|
|
next;
|
|
}
|
|
my $currmac = lc($ifinfo[2]);
|
|
if ($ifinfo[3]) {
|
|
(my $ip,my $netbits) = split /\//,$ifinfo[3];
|
|
if ($ip =~ /\d+\.\d+\.\d+\.\d+/) {
|
|
my $ipn = unpack("N",inet_aton($ip));
|
|
my $mask = 2**$netbits-1<<(32-$netbits);
|
|
my $netn = inet_ntoa(pack("N",$ipn & $mask));
|
|
my $hosttag = gethosttag($node,$netn,@ifinfo[1],\%usednames);
|
|
print Dumper($hosttag) . "\n";
|
|
if ($hosttag) {
|
|
$usednames{$hosttag}=1;
|
|
if ($hosttag eq $node) {
|
|
$macstring .= $currmac."|";
|
|
} else {
|
|
$macstring .= $currmac."!".$hosttag."|";
|
|
}
|
|
# following is for manual discovery by nodediscoverdef to define a undef node to predefine node
|
|
# this this case, the $clientip is null
|
|
unless ($clientip) {
|
|
$clientip = $ip;
|
|
}
|
|
} else {
|
|
if ($forcenic == 1) { $macstring .= $currmac."|"; } else { $macstring .= $currmac."!*NOIP*|"; }
|
|
}
|
|
}
|
|
} else {
|
|
if ($forcenic == 1) { $macstring .= $currmac."|"; }
|
|
}
|
|
}
|
|
$macstring =~ s/\|\z//;
|
|
$mactab->setNodeAttribs($node,{mac=>$macstring});
|
|
my %request = (
|
|
command => ['makedhcp'],
|
|
node => [$node]
|
|
);
|
|
$doreq->(\%request);
|
|
}
|
|
#TODO: mac table? on the one hand, 'the' definitive interface was determined earlier...
|
|
#Delete the state it was in to make it traverse destiny once agoin
|
|
my $chaintab = xCAT::Table->new('chain');
|
|
if ($chaintab) {
|
|
$chaintab->setNodeAttribs($node,{currstate=>'',currchain=>''});
|
|
$chaintab->close();
|
|
}
|
|
|
|
# Update the switch port information if the 'updateswitch' flag is added in the request.
|
|
# 'updateswitch' is default added for sequential discovery
|
|
if ($request->{'updateswitch'} && $macstring) {
|
|
my $firstmac;
|
|
|
|
# Get the mac which defined as the management nic
|
|
my @macents = split (/\|/, $macstring);
|
|
foreach my $macent (@macents) {
|
|
my ($mac, $host) = split (/!/, $macent);
|
|
unless ($firstmac) {
|
|
$firstmac = $mac;
|
|
}
|
|
if (!$host || $host eq $node) {
|
|
$firstmac = $mac;
|
|
last;
|
|
}
|
|
}
|
|
|
|
# search the management nic and record the switch informaiton
|
|
foreach my $nic (@{$request->{nic}}) {
|
|
if (defined ($nic->{'hwaddr'}) && $nic->{'hwaddr'}->[0] =~ /$firstmac/i ) {
|
|
if (defined ($nic->{'switchname'}) && defined ($nic->{'switchaddr'})) {
|
|
# update the switch to switches table
|
|
my $switchestab = xCAT::Table->new('switches');
|
|
if ($switchestab) {
|
|
$switchestab->setAttribs({switch=>$nic->{'switchname'}->[0]}, {comments=>$nic->{'switchdesc'}->[0]});
|
|
$switchestab->close();
|
|
}
|
|
# update the ip of switch to hosts table
|
|
my $hosttab = xCAT::Table->new('hosts');
|
|
if ($hosttab) {
|
|
$hosttab->setNodeAttribs($nic->{'switchname'}->[0], {ip => $nic->{'switchaddr'}->[0]});
|
|
$hosttab->commit();
|
|
}
|
|
|
|
# add the switch as a node to xcat db
|
|
my $nltab = xCAT::Table->new('nodelist');
|
|
if ($nltab) {
|
|
$nltab->setNodeAttribs($nic->{'switchname'}->[0], {groups=>"all,switch"});
|
|
$nltab->commit();
|
|
}
|
|
|
|
if (defined ($nic->{'switchport'})) {
|
|
# update the switch table
|
|
my $switchtab = xCAT::Table->new('switch');
|
|
if ($switchtab) {
|
|
$switchtab->setNodeAttribs($node, {switch=>$nic->{'switchname'}->[0], port=>$nic->{'switchport'}->[0]});
|
|
$switchtab->close();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
my $restartstring = "restart";
|
|
if (scalar @forcenics > 0) {
|
|
$restartstring .= " (".join("|",@forcenics).")";
|
|
}
|
|
#now, notify the node to continue life
|
|
my $sock = new IO::Socket::INET (
|
|
PeerAddr => $clientip,
|
|
PeerPort => '3001',
|
|
Timeout => '1',
|
|
Proto => 'tcp'
|
|
);
|
|
unless ($sock) { syslog("err","Failed to notify $clientip that it's actually $node."); return; } #Give up if the node won't hear of it.
|
|
print $sock $restartstring;
|
|
close($sock);
|
|
|
|
# sleep 2 seconds for genesis to complete the disocvery process
|
|
sleep (2);
|
|
|
|
#Update the discoverydata table to indicate the successful discovery
|
|
xCAT::DiscoveryUtils->update_discovery_data($request);
|
|
|
|
syslog("info","$node has been discovered");
|
|
}
|
|
|
|
1;
|