f678701ed5
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@4995 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
459 lines
12 KiB
Perl
459 lines
12 KiB
Perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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package xCAT_plugin::networks;
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use xCAT::Table;
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use Data::Dumper;
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use Sys::Syslog;
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use Socket;
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use xCAT::Utils;
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use Getopt::Long;
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sub handled_commands
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{
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return {makenetworks => "networks",};
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}
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sub preprocess_request
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{
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my $req = shift;
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my $callback = shift;
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# exit if preprocessed
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if ($req->{_xcatpreprocessed}->[0] == 1) { return [$req]; }
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my @requests = ({%$req}); #first element is local instance
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$::args = $req->{arg};
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if (defined(@{$::args})) {
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@ARGV = @{$::args};
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}
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Getopt::Long::Configure("no_pass_through");
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if (
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!GetOptions(
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'help|h|?' => \$::HELP,
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'display|d' => \$::DISPLAY,
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'verbose|V' => \$::VERBOSE,
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'version|v' => \$::VERSION,
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)
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)
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{
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# return 1;
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}
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# Option -h for Help
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if ($::HELP )
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{
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&makenetworks_usage($callback);
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return undef;
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}
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# Option -v for version - do we need this???
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if ($::VERSION)
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{
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my $rsp;
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my $version=xCAT::Utils->Version();
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$rsp->{data}->[0] = "makenetworks - $version";
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xCAT::MsgUtils->message("I", $rsp, $callback);
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return undef;
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}
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# process the network interfaces on this system
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if (&donets($callback) != 0) {
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my $rsp;
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push @{$rsp->{data}}, "Could not get network information.\n";
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xCAT::MsgUtils->message("E", $rsp, $callback);
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return undef;
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}
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my @sn = xCAT::Utils->getSNList();
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foreach my $s (@sn)
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{
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my $reqcopy = {%$req};
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$reqcopy->{'_xcatdest'} = $s;
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$reqcopy->{_xcatpreprocessed}->[0] = 1;
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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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sub process_request
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{
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my $request = shift;
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my $callback = shift;
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$::args = $request->{arg};
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if (defined(@{$::args})) {
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@ARGV = @{$::args};
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}
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Getopt::Long::Configure("no_pass_through");
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if (
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!GetOptions(
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'help|h|?' => \$::HELP,
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'display|d' => \$::DISPLAY,
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'verbose|V' => \$::VERBOSE,
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'version|v' => \$::VERSION,
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)
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)
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{
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# return 1;
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}
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# process the network interfaces on this system
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# - management node was already done
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if (!xCAT::Utils->isMN()) {
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if (&donets($callback) != 0) {
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my $rsp;
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push @{$rsp->{data}}, "Could not get network information.\n";
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xCAT::MsgUtils->message("E", $rsp, $callback);
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return 1;
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}
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}
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return 0;
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}
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#----------------------------------------------------------------------------
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=head3 donets
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Get network information and display or create xCAT network defs
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Returns:
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0 - OK
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1 - error
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Usage:
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my $rc = &donets($callback);
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=cut
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#-----------------------------------------------------------------------------
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sub donets
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{
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my $callback = shift;
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my $host = `hostname`;
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chomp $host;
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# get all the existing xCAT network defs
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my @netlist;
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@netlist = xCAT::DBobjUtils->getObjectsOfType('network');
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my %nethash;
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if (scalar(@netlist)) {
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my %objtype;
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foreach my $netn (@netlist) {
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$objtype{$netn} = 'network';
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}
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%nethash = xCAT::DBobjUtils->getobjdefs(\%objtype, $callback);
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if (!defined(%nethash)) {
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my $rsp;
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$rsp->{data}->[0] = "Could not get xCAT network definitions.\n";
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xCAT::MsgUtils->message("E", $rsp, $::callback);
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return 1;
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}
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}
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my $nettab = xCAT::Table->new('networks', -create => 1, -autocommit => 0);
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if (xCAT::Utils->isAIX()) {
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# get list of interfaces "ifconfig -l"
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my $ifgcmd = "ifconfig -l";
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my @interfaces = split(/\s+/, xCAT::Utils->runcmd($ifgcmd, 0));
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if ($::RUNCMD_RC != 0) {
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my $rsp;
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push @{$rsp->{data}}, "Could not run \'$ifgcmd\'.\n";
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xCAT::MsgUtils->message("E", $rsp, $callback);
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return 1;
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}
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# do each ethernet interface
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foreach my $i (@interfaces) {
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if ($i =~ /^en/) {
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# "mktcpip -S en0" to get nm & gw
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my $mkcmd = "mktcpip -S $i";
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my @netinfo = xCAT::Utils->runcmd($mkcmd, 0);
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if ($::RUNCMD_RC != 0) {
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my $rsp;
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push @{$rsp->{data}}, "Could not run \'$mkcmd\'.\n";
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xCAT::MsgUtils->message("E", $rsp, $callback);
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return 1;
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}
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my $netmask;
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my $ipaddr;
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my @fields;
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my $gateway;
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foreach my $line (@netinfo) {
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next if ($line =~ /^\s*#/);
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@fields = split(/:/, $line);
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}
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$ipaddr = $fields[1];
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$netmask = $fields[2];
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$gateway = $fields[6];
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# split interface IP
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my ($ip1, $ip2, $ip3, $ip4) = split('\.', $ipaddr);
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# split mask
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my ($m1, $m2, $m3, $m4) = split('\.', $netmask);
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# AND nm and ip to get net attribute
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my $n1 = ((int $ip1) & (int $m1));
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my $n2 = ((int $ip2) & (int $m2));
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my $n3 = ((int $ip3) & (int $m3));
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my $n4 = ((int $ip4) & (int $m4));
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my $net = "$n1.$n2.$n3.$n4";
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# use convention for netname attr
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my $netn;
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my $maskn;
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($netn = $net) =~ s/\./\_/g;
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($maskn = $netmask) =~ s/\./\_/g;
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# ( 1_2_3_4-255_255_255_192 - ugh!)
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my $netname = $netn . "-" . $maskn;
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# see if this network (or equivalent) is already defined
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# - compare net and mask values
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foreach my $netn (@netlist) {
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# split definition mask
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my ($dm1, $dm2, $dm3, $dm4) = split('\.', $nethash{$netn}{'mask'});
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# split definition net addr
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my ($dn1, $dn2, $dn3, $dn4) = split('\.', $nethash{$netn}{'net'});
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# check for the same netmask and network address
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if ( ($n1 == $dn1) && ($n2 ==$dn2) && ($n3 == $dn3) && ($n4 == $dn4) ) {
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if ( ($m1 == $dm1) && ($m2 ==$dm2) && ($m3 == $dm3) && ($m4== $dm4) ) {
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$foundmatch=1;
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}
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}
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}
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if ($::DISPLAY) {
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my $rsp;
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push @{$rsp->{data}}, "\n#From $host.";
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push @{$rsp->{data}}, "$netname:";
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push @{$rsp->{data}}, " objtype=network";
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push @{$rsp->{data}}, " net=$net";
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push @{$rsp->{data}}, " mask=$netmask";
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push @{$rsp->{data}}, " gateway=$gateway\n";
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if ($foundmatch) {
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push @{$rsp->{data}}, "# Note: An equivalent xCAT network definition already exists.\n";
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}
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xCAT::MsgUtils->message("I", $rsp, $callback);
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} else {
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if ($foundmatch) {
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next;
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}
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# add new network def
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$nettab->setAttribs({'net' => $net, 'mask' => $netmask}, {'netname' => $netname, 'gateway' => $gateway});
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}
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}
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}
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} else {
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# For Linux systems
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my @rtable = split /\n/, `/bin/netstat -rn`;
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open($rconf, "/etc/resolv.conf");
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my @nameservers;
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if ($rconf)
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{
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my @rcont;
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while (<$rconf>)
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{
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push @rcont, $_;
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}
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close($rconf);
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foreach (grep /nameserver/, @rcont)
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{
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my $line = $_;
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my @pair;
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$line =~ s/#.*//;
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$line =~ s/^\s*//;
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@pair = split(/\s+/, $line);
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if ($pair[0] eq 'nameserver' && $pair[1] ne '') {
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push @nameservers, $pair[1];
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}
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}
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}
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splice @rtable, 0, 2;
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foreach (@rtable)
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{ #should be the lines to think about, do something with U, and something else with UG
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my $foundmatch=0;
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my $rsp;
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my $net;
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my $mask;
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my $mgtifname;
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my $gw;
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my @ent = split /\s+/, $_;
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my $firstoctet = $ent[0];
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$firstoctet =~ s/^(\d+)\..*/$1/;
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if ($ent[0] eq "169.254.0.0" or ($firstoctet >= 224 and $firstoctet <= 239) or $ent[0] eq "127.0.0.0")
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{
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next;
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}
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if ($ent[3] eq 'U')
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{
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$net = $ent[0];
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$mask = $ent[2];
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$mgtifname = $ent[7];
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# use convention for netname attr
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my $netn;
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my $maskn;
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($netn = $net) =~ s/\./\_/g;
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($maskn = $mask) =~ s/\./\_/g;
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# ( 1_2_3_4-255_255_255_192 - ugh!)
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my $netname = $netn . "-" . $maskn;
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# see if this network (or equivalent) is already defined
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# - compare net and mask values
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# split mask
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my ($m1, $m2, $m3, $m4) = split('\.', $mask);
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# split net addr
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my ($n1, $n2, $n3, $n4) = split('\.', $net);
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foreach my $netn (@netlist) {
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# split definition mask
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my ($dm1, $dm2, $dm3, $dm4) = split('\.', $nethash{$netn}{'mask'});
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# split definition net addr
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my ($dn1, $dn2, $dn3, $dn4) = split('\.', $nethash{$netn}{'net'});
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# check for the same netmask and network address
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if ( ($n1 == $dn1) && ($n2 ==$dn2) && ($n3 == $dn3) && ($n4 == $dn4) ) {
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if ( ($m1 == $dm1) && ($m2 ==$dm2) && ($m3 == $dm3) && ($m4== $dm4) ) {
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$foundmatch=1;
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}
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}
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}
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if ($::DISPLAY) {
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push @{$rsp->{data}}, "\n#From $host.";
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push @{$rsp->{data}}, "$netname:";
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push @{$rsp->{data}}, " objtype=network";
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push @{$rsp->{data}}, " net=$net";
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push @{$rsp->{data}}, " mask=$mask";
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push @{$rsp->{data}}, " mgtifname=$mgtifname";
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} else {
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if (!$foundmatch) {
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$nettab->setAttribs({'net' => $net, 'mask' => $mask}, {'netname' => $netname, 'mgtifname' => $mgtifname});
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}
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}
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my $tent = $nettab->getAttribs({'net' => $net, 'mask' => $mask}, 'nameservers');
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unless ($tent and $tent->{nameservers})
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{
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my $text = join ',', @nameservers;
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if ($::DISPLAY) {
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push @{$rsp->{data}}, " nameservers=$text";
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} else {
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if (!$foundmatch) {
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$nettab->setAttribs({'net' => $net, 'mask' => $mask}, {nameservers => $text});
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}
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}
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}
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unless ($tent and $tent->{tftpserver})
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{
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my $netdev = $ent[7];
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my @netlines = split /\n/, `/sbin/ip addr show dev $netdev`;
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foreach (grep /\s*inet\b/, @netlines)
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{
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my @row = split(/\s+/, $_);
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my $ipaddr = $row[2];
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$ipaddr =~ s/\/.*//;
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my @maska = split(/\./, $mask);
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my @ipa = split(/\./, $ipaddr);
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my @neta = split(/\./, $net);
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my $isme = 1;
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foreach (0 .. 3)
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{
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my $oct = (0 + $maska[$_]) & ($ipa[$_] + 0);
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unless ($oct == $neta[$_])
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{
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$isme = 0;
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last;
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}
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}
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if ($isme)
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{
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if ($::DISPLAY) {
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push @{$rsp->{data}}, " tftpserver=$ipaddr";
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} else {
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if (!$foundmatch) {
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$nettab->setAttribs({'net' => $net, 'mask' => $mask}, {tftpserver => $ipaddr});
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}
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}
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last;
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}
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}
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}
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#Nothing much sane to do for the other fields at the moment?
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}
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elsif ($ent[3] eq 'UG')
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{
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#TODO: networks through gateway. and how we might care..
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}
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else
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{
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#TODO: anything to do with such entries?
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}
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if ($::DISPLAY) {
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if ($foundmatch) {
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push @{$rsp->{data}}, "# Note: An equivalent xCAT network definition already exists.\n";
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}
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xCAT::MsgUtils->message("I", $rsp, $callback);
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}
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}
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}
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$nettab->commit;
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return 0;
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}
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#----------------------------------------------------------------------------
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=head3 makenetworks_usage
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=cut
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#-----------------------------------------------------------------------------
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sub makenetworks_usage
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{
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my $callback = shift;
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my $rsp;
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push @{$rsp->{data}}, "\nUsage: makenetworks - Gather cluster network information and add it to the xCAT database.\n";
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push @{$rsp->{data}}, " makenetworks [-h|--help ]\n";
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push @{$rsp->{data}}, " makenetworks [-v|--version]\n";
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push @{$rsp->{data}}, " makenetworks [-V|--verbose] [-d|--display]\n";
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xCAT::MsgUtils->message("I", $rsp, $callback);
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return 0;
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}
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1;
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