3fa3910689
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@9242 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
605 lines
14 KiB
Perl
605 lines
14 KiB
Perl
# IBM(c) 2010 EPL license http://www.eclipse.org/legal/epl-v10.html
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#-------------------------------------------------------
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=head1
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xCAT plugin package to handle xdsh
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Supported command:
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nodenetconn
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ipforward (internal command)
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=cut
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#-------------------------------------------------------
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package xCAT_plugin::route;
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
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}
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use lib "$::XCATROOT/lib/perl";
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use strict;
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use xCAT::Table;
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use xCAT::Utils;
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use xCAT::NetworkUtils;
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use xCAT::MsgUtils;
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use Getopt::Long;
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use xCAT::NodeRange;
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use Data::Dumper;
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use xCAT::NodeRange;
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1;
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#-------------------------------------------------------
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=head3 handled_commands
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Return list of commands handled by this plugin
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=cut
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#-------------------------------------------------------
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sub handled_commands
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{
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return {
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makeroutes => "route",
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ipforward => "route"
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};
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}
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#-------------------------------------------------------
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=head3 preprocess_request
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Preprocess the command
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=cut
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#-------------------------------------------------------
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sub preprocess_request
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{
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my $request = shift;
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my $callback = shift;
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my $sub_req = shift;
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my $command = $request->{command}->[0];
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my $args = $request->{arg};
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#if already preprocessed, go straight to request
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if ((defined($request->{_xcatpreprocessed}))
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&& ($request->{_xcatpreprocessed}->[0] == 1))
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{
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return [$request];
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}
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if ($command eq "ipforward") {
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my $nodes=$request->{node};
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my @sns=();
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if ($nodes) {
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@sns=@$nodes;
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}
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#print "sns=@sns\n";
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my @requests=();
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foreach (@sns) {
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my $reqcopy = {%$request};
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$reqcopy->{'node'}=[];
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$reqcopy->{'_xcatdest'}=$_;
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$reqcopy->{_xcatpreprocessed}->[0] = 1;
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push @requests, $reqcopy;
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}
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return \@requests;
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} else {
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# parse the options
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@ARGV=();
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if ($args) {
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@ARGV=@{$args};
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}
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Getopt::Long::Configure("bundling");
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Getopt::Long::Configure("no_pass_through");
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my $routelist_in;
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my $delete=0;
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if(!GetOptions(
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'h|help' => \$::HELP,
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'v|version' => \$::VERSION,
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'r|routename=s' => \$routelist_in,
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'd|delete' => \$delete,
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))
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{
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&usage($callback);
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return 1;
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}
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# display the usage if -h or --help is specified
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if ($::HELP) {
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&usage($callback);
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return 0;
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}
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# display the version statement if -v or --verison is specified
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if ($::VERSION)
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{
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my $rsp={};
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$rsp->{data}->[0]= xCAT::Utils->Version();
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$callback->($rsp);
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return 0;
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}
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#make sure the input routes are in the routes table.
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if ($routelist_in) {
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my %all_routes=();
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my $routestab=xCAT::Table->new("routes", -create =>1);
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if ($routestab) {
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my @tmp1=$routestab->getAllAttribs(('routename', 'net'));
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if (@tmp1 > 0) {
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foreach(@tmp1) {
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$all_routes{$_->{routename}} = $_;
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$_->{process} = 0;
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}
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}
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}
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my @badroutes=();
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foreach(split(',', $routelist_in)) {
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if (!exists($all_routes{$_})) {
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push(@badroutes, $_);
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}
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}
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if (@badroutes>0) {
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my $rsp={};
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my $badroutes_s=join(',', @badroutes);
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if (@badroutes==1) {
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$rsp->{error}->[0]= "The route $badroutes_s is not defined in the routes table.";
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} else {
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$rsp->{error}->[0]= "The routes $badroutes_s are not defined in the routes table.";
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}
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$callback->($rsp);
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return 1;
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}
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}
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if (@ARGV == 0) { #no noderange is specifiled, assume it is on the mn
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my $reqcopy = {%$request};
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$reqcopy->{_xcatpreprocessed}->[0] = 1;
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if ($routelist_in) {
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$reqcopy->{routelist}->[0]=$routelist_in;
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}
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if ($delete) {
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$reqcopy->{delete}->[0]=1;
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}
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return [$reqcopy];
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} else { #noderange is specified,
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my $ret=[];
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my $nr=$ARGV[0];
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my @noderange = xCAT::NodeRange::noderange($nr, 1);
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my @missednodes=xCAT::NodeRange::nodesmissed();
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if (@missednodes > 0) {
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my $rsp={};
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$rsp->{error}->[0]= "Invalide nodes in noderange: " . join(',', @missednodes);
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$callback->($rsp);
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return 1;
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}
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my @servicenodes=xCAT::Utils->getSNList();
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#print "noderange=@noderange, missednodes=@missednodes, servicenodes=@servicenodes\n";
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#pick out the service nodes from the node list
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foreach my $sn (@servicenodes) {
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if (grep /^$sn$/, @noderange) {
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@noderange=grep(!/^$sn$/, @noderange);
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my $reqcopy = {%$request};
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$reqcopy->{_xcatpreprocessed}->[0] = 1;
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$reqcopy->{'_xcatdest'} = $sn;
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$reqcopy->{node} = [$sn];
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if ($routelist_in) {
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$reqcopy->{routelist}->[0]=$routelist_in;
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}
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if ($delete) {
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$reqcopy->{delete}->[0]=1;
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}
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push(@$ret, $reqcopy);
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}
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}
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#now find out the service nodes for each node and
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#send the request to the service node
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my $sn_hash = xCAT::Utils->get_ServiceNode(\@noderange, "xcat", "MN");
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# build each request for each service node
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foreach my $sn (keys %$sn_hash)
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{
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my $reqcopy = {%$request};
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$reqcopy->{node} = $sn_hash->{$sn};
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$reqcopy->{'_xcatdest'} = $sn;
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$reqcopy->{_xcatpreprocessed}->[0] = 1;
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$reqcopy->{remote}->[0] = 1;
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if ($routelist_in) {
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$reqcopy->{routelist}->[0]=$routelist_in;
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}
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if ($delete) {
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$reqcopy->{delete}->[0]=1;
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}
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push(@$ret, $reqcopy);
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}
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return $ret;
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}
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}
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}
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#-------------------------------------------------------
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=head3 process_request
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Process the command
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=cut
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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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my $sub_req = shift;
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my $command = $request->{command}->[0];
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if ($command eq "makeroutes") {
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return process_makeroutes($request, $callback, $sub_req);
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} elsif ($command eq "ipforward") {
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return process_ipforward($request, $callback, $sub_req);
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}
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return;
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}
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sub process_makeroutes {
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my $request = shift;
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my $callback = shift;
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my $sub_req = shift;
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my $command = $request->{command}->[0];
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my $nodes;
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if (exists($request->{node})) {
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$nodes=$request->{node};
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}
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my $delete=0;
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if (exists($request->{delete})) {
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$delete=$request->{delete}->[0];
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}
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my $remote=0;
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if (exists($request->{remote})) {
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$remote=$request->{remote}->[0];
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}
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my $routelist;
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if (exists($request->{routelist})) {
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$routelist=$request->{routelist}->[0];
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}
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#get all the routes from the routes table
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my %all_routes=();
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my $routestab=xCAT::Table->new("routes", -create =>1);
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if ($routestab) {
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my @tmp1=$routestab->getAllAttribs(('routename', 'net', 'mask', 'gateway', 'ifname'));
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if (@tmp1 > 0) {
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foreach(@tmp1) {
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$all_routes{$_->{routename}} = $_;
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$_->{process} = 0;
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}
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}
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}
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if ($routelist) {
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foreach(split(',', $routelist)) {
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$all_routes{$_}->{process}=1;
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if (($nodes) && ($remote)) {
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$all_routes{$_}->{nodes}=$nodes;
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}
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}
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} else {
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#get the routes for each nodes from the noderes table (for sn and cn) and site table (for mn)
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if ($nodes) {
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my $nrtab=xCAT::Table->new("noderes", -create =>1);
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my $nrhash = $nrtab->getNodesAttribs($nodes, ['routenames']) ;
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foreach(@$nodes) {
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my @badroutes=();
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my $node=$_;
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my $rn;
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my $ent=$nrhash->{$node}->[0];
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if (ref($ent) and defined $ent->{routenames}) {
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$rn = $ent->{routenames};
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}
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if ($rn) {
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my @a=split(',', $rn);
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my @badroutes=();
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foreach my $r (@a) {
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if (! exists($all_routes{$r})) {
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push(@badroutes, $r);
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} else {
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#print "got here...., remote=$remote\n";
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$all_routes{$r}->{process}=1;
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if ($remote) {
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my $pa=$all_routes{$r}->{nodes};
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if ($pa) {
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push(@$pa, $node);
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} else {
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$all_routes{$r}->{nodes}=[$node];
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}
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}
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}
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}
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if (@badroutes > 0) {
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my $badroutes_s=join(',', @badroutes);
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my $rsp={};
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if (@badroutes==1) {
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$rsp->{error}->[0]= "The route $badroutes_s is not defined in the routes table. Please check noderes.routenames for node $node.";
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} else {
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$rsp->{error}->[0]= "The routes $badroutes_s are not defined in the routes table. Please check noderes.routenames for node $node.";
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}
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$callback->($rsp);
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return 1;
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}
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} else {
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my $rsp={};
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$rsp->{data}->[0]= "No routes defined in noderes.routenames for node $node, skiping $node.";
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$callback->($rsp);
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}
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}
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}
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else { #this is mn, get the routes from the site table
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my @mnroutes = xCAT::Utils->get_site_attribute("routenames");
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if ($mnroutes[0]) {
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my @a=split(',', $mnroutes[0]);
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my @badroutes=();
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foreach my $r (@a) {
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if (! exists($all_routes{$r})) {
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push(@badroutes, $r);
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} else {
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$all_routes{$r}->{process}=1;
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}
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}
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if (@badroutes > 0) {
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my $badroutes_s=join(',', @badroutes);
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my $rsp={};
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if (@badroutes==1) {
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$rsp->{error}->[0]= "The route $badroutes_s is not defined in the routes table. Please check site.routenames for the management node.";
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} else {
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$rsp->{error}->[0]= "The routes $badroutes_s are not defined in the routes table. Please check site.routenames for the management node.";
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}
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$callback->($rsp);
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return 1;
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}
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} else {
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my $rsp={};
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$rsp->{data}->[0]= "No routes defined in the site.routnames for the management node.";
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$callback->($rsp);
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return 1;
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}
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}
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}
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#print Dumper(%all_routes);
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#now let's handle the route creatation and deletion
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my @sns=();
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my $installdir = xCAT::Utils->getInstallDir();
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while (my ($routename, $route_hash) = each(%all_routes)) {
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if ($route_hash->{process}) {
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my ($gw_name, $gw_ip)=xCAT::NetworkUtils->gethostnameandip($route_hash->{gateway});
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push(@sns, $gw_name);
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if ($remote) { #to the nodes
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my $nodes_tmp=$route_hash->{nodes};
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print "nodes=@$nodes_tmp, remote=$remote, delete=$delete\n";
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my $op="add";
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if ($delete) { $op="delete"; }
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my $output = xCAT::Utils->runxcmd(
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{
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command => ["xdsh"],
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node => $nodes_tmp,
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arg => ["-e", "/$installdir/postscripts/routeop $op " . $route_hash->{net} . " " . $route_hash->{mask} . " $gw_ip"],
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_xcatpreprocessed => [1],
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},
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$sub_req, -1, 1);
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my $rsp={};
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$rsp->{data}=$output;
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$callback->($rsp);
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} else { #local on mn or sn
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if ($delete) {
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delete_route($callback, $route_hash->{net}, $route_hash->{mask}, $gw_ip, $gw_name);
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}
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else {
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set_route($callback, $route_hash->{net}, $route_hash->{mask}, $gw_ip, $gw_name);
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}
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}
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}
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}
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#not all gateways are service nodes
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my %sn_hash=();
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my @allSN=xCAT::Utils->getAllSN();
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my %allSN_hash=();
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foreach(@allSN) {$allSN_hash{$_}=1;}
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foreach my $sn (@sns) {
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if (exists($allSN_hash{$sn})) {
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$sn_hash{$sn}=1;
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}
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}
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#update servicenode.ipforward
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my $sntab=xCAT::Table->new("servicenode", -create => 1,-autocommit => 1);
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my %valuehash=();
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my $value=1;
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if ($delete) {$value=0;}
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foreach my $sn (keys %sn_hash) {
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$valuehash{$sn} = { ipforward=>$value };
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}
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$sntab->setNodesAttribs(\%valuehash);
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#go to the service nodes to enable/disable ipforwarding
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my @nodes=keys(%sn_hash);
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$sub_req->({
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command=>['ipforward'],
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node=>\@nodes,
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arg=>[$delete]},
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$callback);
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}
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sub process_ipforward {
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my $request = shift;
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my $callback = shift;
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my $sub_req = shift;
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my $args = $request->{arg};
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my $delete=0;
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if ($args) {
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$delete = $args->[0];
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}
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if ($delete) {
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xCAT::NetworkUtils->setup_ip_forwarding(0);
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} else {
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xCAT::NetworkUtils->setup_ip_forwarding(1);
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}
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}
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sub usage {
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my $cb=shift;
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my $rsp={};
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$rsp->{data}->[0]= "Usage: makeroutes -h";
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$rsp->{data}->[1]= " makeroutes -v";
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$rsp->{data}->[2]= " makeroutes [-r routename[,routename...]]";
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$rsp->{data}->[3]= " makeroutes [-r routename[,routename...]] -d ";
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$rsp->{data}->[4]= " makeroutes noderange [-r routename[,routename...]]";
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$rsp->{data}->[5]= " makeroutes noderange [-r routename[,routename...]] -d";
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$cb->($rsp);
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}
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#check if the route exits or not from the route table
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sub route_exists {
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my $net = shift;
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my $mask = shift;
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my $gw_ip = shift;
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my $gw=shift;
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my $islinux=xCAT::Utils->isLinux();
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my $result;
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$result=`netstat -nr|grep $net`;
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if ($? == 0) {
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if ($result) {
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my @b=split('\n', $result);
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foreach my $tmp (@b) {
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chomp($tmp);
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my @a=split(' ', $tmp);
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if ($islinux) { #Linux
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if (@a >= 3) {
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my $net1=$a[0];
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my $mask1=$a[2];
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my $gw1=$a[1];
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if (($net1 eq $net) && ($mask1 eq $mask) && (($gw1 eq $gw) || ($gw1 eq $gw_ip))) {
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return 1;
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}
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}
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}
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else { #AIX
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if (@a >= 2) {
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my $tmp1=$a[0];
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my $gw1=$a[1];
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#now convert $mask to bits
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$net =~ /([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/;
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my $netnum = ($1<<24)+($2<<16)+($3<<8)+$4;
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my $bits=32;
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while (($netnum % 2) == 0) {
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$bits--;
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$netnum=$netnum>>1;
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}
|
|
my $tmp2="$net/$bits";
|
|
if (($tmp1 eq $tmp2) && (($gw1 eq $gw) || ($gw1 eq $gw_ip))) {
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
# sets the route with given parameters
|
|
sub set_route {
|
|
my $callback=shift;
|
|
my $net = shift;
|
|
my $mask = shift;
|
|
my $gw_ip = shift;
|
|
my $gw=shift;
|
|
|
|
my $result;
|
|
if (!route_exists($net, $mask, $gw_ip, $gw)) {
|
|
#set temporay route
|
|
my $cmd;
|
|
if (xCAT::Utils->isLinux()) {
|
|
$cmd="route add -net $net netmask $mask gw $gw_ip";
|
|
} else {
|
|
$cmd="route add -net $net -netmask $mask $gw_ip";
|
|
}
|
|
#print "cmd=$cmd\n";
|
|
$result=`$cmd 2>&1`;
|
|
if ($? != 0) {
|
|
my $rsp={};
|
|
$rsp->{error}->[0]= "$cmd\nerror code=$?, result=$result\n";
|
|
$callback->($rsp);
|
|
return 1;
|
|
} else {
|
|
#TODO: set per permanent route
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
# deletes the route with given parameters
|
|
sub delete_route {
|
|
my $callback=shift;
|
|
my $net = shift;
|
|
my $mask = shift;
|
|
my $gw_ip = shift;
|
|
my $gw=shift;
|
|
|
|
my $result;
|
|
if (route_exists($net, $mask, $gw_ip, $gw)) {
|
|
#delete route temporarily
|
|
my $cmd;
|
|
if (xCAT::Utils->isLinux()) {
|
|
$cmd="route delete -net $net netmask $mask gw $gw_ip";
|
|
} else {
|
|
$cmd="route delete -net $net -netmask $mask $gw_ip";
|
|
}
|
|
#print "cmd=$cmd\n";
|
|
$result=`$cmd 2>&1`;
|
|
if ($? != 0) {
|
|
my $rsp={};
|
|
$rsp->{error}->[0]= "$cmd\nerror code=$?, result=$result\n";
|
|
$callback->($rsp);
|
|
return 1;
|
|
} else {
|
|
#TODO: delete route permanently
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|