610 lines
20 KiB
Perl
610 lines
20 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 xCAT::TableUtils;
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use xCAT::NetworkUtils;
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use xCAT::ServiceNodeUtils;
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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) && @{$::args} ) {
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@ARGV = @{$::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::ServiceNodeUtils->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) && @{$::args} ) {
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@ARGV = @{$::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 (!%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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my $master=xCAT::TableUtils->get_site_Master();
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my $masterip = xCAT::NetworkUtils->getipaddr($master);
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if ($masterip =~ /:/) {
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# do each ethernet interface for ipv6
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foreach my $i (@interfaces) {
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if ($i =~ /^en/) {
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# "ifconfig en0 |grep fe80" to get net and prefix length
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my $cmd = "ifconfig $i |grep -i inet6";
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my @netinfo = xCAT::Utils->runcmd($cmd, -1);
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if ($::RUNCMD_RC != 0) {
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# no ipv6 address configured
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next;
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}
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# only handle the ipv6 addr without %
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foreach my $line (@netinfo)
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{
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next if ($line =~ /\%/);
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my $gateway;
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my $netmask;
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my @fields;
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@fields = split(/ /, $line);
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($gateway, $netmask) = split(/\//, $fields[1]);
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my $eip = Net::IP::ip_expand_address ($gateway,6);
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my $bip = Net::IP::ip_iptobin($eip,6);
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my $bmask = Net::IP::ip_get_mask($netmask,6);
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my $bnet = $bip & $bmask;
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my $ipnet = Net::IP::ip_bintoip($bnet,6);
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my $net = Net::IP::ip_compress_address($ipnet,6);
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my $netname = $net . "-" . $netmask;
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# see if this network (or equivalent) is already defined
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# - compare net and prefix_len values
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my $foundmatch = 0;
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foreach my $netn (@netlist) {
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# get net and prefix_len
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my $dnet = $nethash{$netn}{'net'};
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my $dprefix_len = $nethash{$netn}{'mask'};
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if (($net == $dnet) && ($netmask == $dprefix_len))
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{
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$foundmatch = 1;
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last;
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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 $host.";
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pus h @{$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 @{$rsp->{data}}, " mgtifname=$i";
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push @{$rsp->{data}}, " gateway=$gateway\n";
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if ($foundmatch) {
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pus h @{$rsp->{data}}, "# Note: An equivalent xCAT network definition already exists.\n";
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}
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xCA T::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, 'mgtifname' => $i});
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}
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}
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}
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}
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} else {
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# do each ethernet interface for ipv4
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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 = $fields[2];
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if ($fields[6])
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{
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if(xCAT::NetworkUtils::isInSameSubnet($fields[6], $ipaddr, $netmask, 0))
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{
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$gateway = $fields[6];
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}
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}
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# set gateway to keyword <xcatmaster>,
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# to indicate to use the cluster-facing ip address
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# on this management node or service node
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if (!$gateway)
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{
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$gateway = "<xcatmaster>";
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}
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# split interface IP
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my ($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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my $foundmatch = 0;
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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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last;
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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 @{$rsp->{data}}, " mgtifname=$i";
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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, 'mgtifname' => $i});
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}
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}
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} # end foreach
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} #end if ipv4
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} else {
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# For Linux systems
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my @ip6table = split /\n/,`/sbin/ip -6 route`;
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my @rtable = split /\n/, `/bin/netstat -rn`;
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splice @rtable, 0, 2;
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my %netgw = ();
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foreach my $rtent (@rtable)
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{
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my @entarr = split /\s+/, $rtent;
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if ($entarr[3] eq 'UG')
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{
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$netgw{$entarr[0]}{$entarr[2]} = $entarr[1];
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}
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}
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#routers advertise their role completely outside of DHCPv6 scope, we don't need to
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#get ipv6 routes and in fact *cannot* dictate router via DHCPv6 at this specific moment.
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foreach (@ip6table)
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{
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my @ent = split /\s+/, $_;
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if ($ent[0] eq 'fe80::/64' or $ent[0] eq 'unreachable' or $ent[1] eq 'via') {
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#Do not contemplate link-local, unreachable, or gatewayed networks further
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#DHCPv6 relay will be manually entered into networks as was the case for IPv4
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next;
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}
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my $net = shift @ent;
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my $dev = shift @ent;
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if ($dev eq 'dev') {
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$dev = shift @ent;
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} else {
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die "Unrecognized IPv6 routing entry $_";
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}
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my @myv6addrs=split /\n/,`ip -6 addr show dev $dev scope global`;
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#for v6, deprecating mask since the CIDR slash syntax is ubiquitous
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my $consideredaddr=$net;
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$consideredaddr=~ s!/(.*)!!;
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my $consideredbits=$1;
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#below may be redundant, but apply resolution in case ambiguous net, e.g. 2001:0db8:0::/64 is the same thing as 2001:0db8::/64
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$consideredaddr = xCAT::NetworkUtils->getipaddr($consideredaddr);
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my $netexists=0;
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foreach my $netn (@netlist) { #search for network that doesn't exist yet
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my $curnet=$nethash{$netn}{'net'};
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unless ($curnet =~ /:/) { #only ipv6 here
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next;
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}
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$curnet =~ s!/(.*)!!; #remove
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my $curnetbits=$1;
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unless ($consideredbits==$curnetbits) { #only matches if netmask matches
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next;
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}
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$currnet = xCAT::NetworkUtils->getipaddr($currnet);
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unless ($currnet eq $consideredaddr) {
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next;
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}
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$netexists=1;
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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}}, "$net:";
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push @{$rsp->{data}}, " objtype=network";
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push @{$rsp->{data}}, " net=$net";
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push @{$rsp->{data}}, " mgtifname=$dev";
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} else {
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unless ($netexiss) {
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my $tmpmask = $net;
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$tmpmask =~ s!^.*/!/!;
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$nettab->setAttribs({'net' => $net, 'mask' => $tmpmask}, {'netname' => $net, 'mgtifname' => $dev});
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}
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}
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}
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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 = $ent[7];
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if (defined($netgw{'0.0.0.0'}{'0.0.0.0'}))
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{
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if(xCAT::NetworkUtils->ishostinsubnet($netgw{'0.0.0.0'}{'0.0.0.0'}, $mask, $net))
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{
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$gw = $netgw{'0.0.0.0'}{'0.0.0.0'}; #default gatetway
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}
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}
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# set gateway to keyword <xcatmaster>,
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# to indicate to use the cluster-facing ip address
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# on this management node or service node
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if (!$gw)
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{
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$gw = "<xcatmaster>";
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}
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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 $host.";
|
|
push @{$rsp->{data}}, "$netname:";
|
|
push @{$rsp->{data}}, " objtype=network";
|
|
push @{$rsp->{data}}, " net=$net";
|
|
push @{$rsp->{data}}, " mask=$mask";
|
|
if ($gw)
|
|
{
|
|
push @{$rsp->{data}}, " gateway=$gw";
|
|
}
|
|
push @{$rsp->{data}}, " mgtifname=$mgtifname";
|
|
} else {
|
|
if (!$foundmatch) {
|
|
$nettab->setAttribs({'net' => $net, 'mask' => $mask}, {'netname' => $netname, 'mgtifname' => $mgtifname, 'gateway' => $gw});
|
|
}
|
|
}
|
|
|
|
unless ($tent and $tent->{tftpserver})
|
|
{
|
|
my $netdev = $ent[7];
|
|
my @netlines = split /\n/, `/sbin/ip addr show dev $netdev`;
|
|
foreach (grep /\s*inet\b/, @netlines)
|
|
{
|
|
my @row = split(/\s+/, $_);
|
|
my $ipaddr = $row[2];
|
|
$ipaddr =~ s/\/.*//;
|
|
my @maska = split(/\./, $mask);
|
|
my @ipa = split(/\./, $ipaddr);
|
|
my @neta = split(/\./, $net);
|
|
my $isme = 1;
|
|
foreach (0 .. 3)
|
|
{
|
|
my $oct = (0 + $maska[$_]) & ($ipa[$_] + 0);
|
|
unless ($oct == $neta[$_])
|
|
{
|
|
$isme = 0;
|
|
last;
|
|
}
|
|
}
|
|
if ($isme)
|
|
{
|
|
if ($::DISPLAY) {
|
|
push @{$rsp->{data}}, " tftpserver=$ipaddr";
|
|
} else {
|
|
if (!$foundmatch) {
|
|
$nettab->setAttribs({'net' => $net, 'mask' => $mask}, {tftpserver => $ipaddr});
|
|
}
|
|
}
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
#Nothing much sane to do for the other fields at the moment?
|
|
}
|
|
elsif ($ent[3] eq 'UG')
|
|
{
|
|
|
|
#TODO: networks through gateway. and how we might care..
|
|
}
|
|
else
|
|
{
|
|
|
|
#TODO: anything to do with such entries?
|
|
}
|
|
|
|
if ($::DISPLAY) {
|
|
|
|
if ($foundmatch) {
|
|
push @{$rsp->{data}}, "# Note: An equivalent xCAT network definition already exists.\n";
|
|
}
|
|
xCAT::MsgUtils->message("I", $rsp, $callback);
|
|
}
|
|
}
|
|
}
|
|
|
|
$nettab->commit;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#----------------------------------------------------------------------------
|
|
|
|
=head3 makenetworks_usage
|
|
|
|
=cut
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
sub makenetworks_usage
|
|
{
|
|
my $callback = shift;
|
|
|
|
my $rsp;
|
|
push @{$rsp->{data}}, "\nUsage: makenetworks - Gather cluster network information and add it to the xCAT database.\n";
|
|
push @{$rsp->{data}}, " makenetworks [-h|--help ]\n";
|
|
push @{$rsp->{data}}, " makenetworks [-v|--version]\n";
|
|
push @{$rsp->{data}}, " makenetworks [-V|--verbose] [-d|--display]\n";
|
|
xCAT::MsgUtils->message("I", $rsp, $callback);
|
|
return 0;
|
|
}
|
|
|
|
1;
|