ab6f939e62
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@16638 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
1219 lines
40 KiB
Perl
1219 lines
40 KiB
Perl
#!/usr/bin/env perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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package xCAT::Client;
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : -d '/opt/xcat' ? '/opt/xcat' : '/usr';
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}
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# if AIX - make sure we include perl 5.8.2 in INC path.
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# Needed to find perl dependencies shipped in deps tarball.
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use Storable qw/nstore_fd fd_retrieve/;
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if ($^O =~ /^aix/i) {
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unshift(@INC, qw(/usr/opt/perl5/lib/5.8.2/aix-thread-multi /usr/opt/perl5/lib/5.8.2 /usr/opt/perl5/lib/site_perl/5.8.2/aix-thread-multi /usr/opt/perl5/lib/site_perl/5.8.2));
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}
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use IO::Handle;
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my $inet6support;
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if ($^O =~ /^aix/i) { # disable AIX IPV6 TODO fix
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$inet6support = 0;
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} else {
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$inet6support=eval { require Socket6; 1; };
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}
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if ($inet6support) {
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$inet6support = eval { require IO::Socket::INET6; 1; };
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}
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if ($inet6support) {
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$inet6support = eval { require IO::Socket::SSL; IO::Socket::SSL->import('inet6'); 1;};
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}
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if ($^O =~ /^linux/i) {
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# Is IPv6 enabled on the MN or xcat client node at all?
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my $ipv6enabled = `ip addr | grep inet6`;
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if (!$ipv6enabled) {
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$inet6support = 0;
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}
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}
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unless ($inet6support) {
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eval { require Socket };
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eval { require IO::Socket::INET };
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eval { require IO::Socket::SSL; IO::Socket::SSL->import('inet4') };
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}
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use XML::Simple; #smaller than libxml....
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use Fcntl;
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use POSIX qw/:errno_h/;
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use IO::Select;
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$XML::Simple::PREFERRED_PARSER='XML::Parser';
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#require Data::Dumper;
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my $xcathost='localhost:3001';
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my $plugins_dir;
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my %resps;
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my $EXITCODE; # save the bitmask of all exit codes returned by calls to handle_response()
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1;
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sub rspclean {
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my $response = shift;
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my $callback = shift;
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my $rsps = XMLin($response,SuppressEmpty=>undef,ForceArray=>1);
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foreach my $rsp (@{$rsps->{xcatresponse}}) {
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#add ESC back
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foreach my $key (keys %$rsp) {
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if (ref($rsp->{$key}) eq 'ARRAY') {
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foreach my $text (@{$rsp->{$key}}) {
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next unless defined $text;
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$text =~ s/xxxxESCxxxx/\e/g;
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}
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}
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else {
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$rsp->{$key} =~ s/xxxxESCxxxx/\e/g;
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}
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}
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$callback->($rsp);
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if ($rsp->{serverdone}) {
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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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sub send_request {
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my $request = shift;
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my $sock = shift;
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my $encode = shift;
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if ($encode eq "xml") {
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my $msg=XMLout($request,RootName=>'xcatrequest',NoAttr=>1,KeyAttr=>[]);
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if ($ENV{XCATXMLTRACE}) { print $msg; }
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if($ENV{XCATXMLWARNING}) {
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validateXML($msg);
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}
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print $sock $msg;
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$sock->flush();
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} else {
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nstore_fd($request,$sock);
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$sock->flush();
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}
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}
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#################################
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# submit_request will take an xCAT command and pass it to the xCAT
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# server for execution.
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# Note must not put a require or use for Utils.pm in the non-bypass path
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#
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# If the XCATBYPASS env var is set, the connection to the server/daemon
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# will be bypassed and the plugin will be called directly. If it is
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# set to one or more directories (separated by ":"), all perl modules
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# in those directories will be loaded in as plugins (for duplicate
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# commands, last one in wins). If it is set to any other value
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# (e.g. "yes", "default", whatever string you want) the default plugin
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# directory /opt/xcat/lib/perl/xCAT_plugin will be used.
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#
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# Input:
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# Request hash - A hash ref containing the input command and args to be
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# passed to the plugin. The the xcatd daemon (or this routine when
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# XCATBYPASS) reads the {noderange} entry and builds a flattened array
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# of nodes that gets added as request->{node}
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# The format for the request hash is:
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# { command => [ 'xcatcmd' ],
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# noderange => [ 'noderange_string' ],
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# arg => [ 'arg1', 'arg2', '...', 'argn' ]
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# }
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# Callback - A subroutine ref that will be called to process the output
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# from the plugin.
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#
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# NOTE: The request hash will get converted to XML when passed to the
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# xcatd daemon, and will get converted back to a hash before being
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# passed to the plugin. The XMLin ForceArray option is used to
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# force all XML constructs to be arrays so that the plugin code
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# and callback routines can access the data consistently.
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# The input request and the response hash created by the plugin should
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# always create hashes with array values.
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#################################
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sub submit_request {
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my $request = shift;
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my $callback = shift;
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my $keyfile = shift;
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my $certfile = shift;
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my $cafile = shift;
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# get home directory
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my @user = getpwuid($>);
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my $homedir=$user[7];
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unless ($keyfile) { $keyfile = $homedir."/.xcat/client-cred.pem"; }
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unless ($certfile) { $certfile = $homedir."/.xcat/client-cred.pem"; }
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unless ($cafile) { $cafile = $homedir."/.xcat/ca.pem"; }
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$xCAT::Client::EXITCODE = 0; # clear out exit code before invoking the plugin
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if (ref($request) eq 'HASH') { # the request is an array, not pure XML
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$request->{clienttype}->[0] = "cli"; # setup clienttype for auditlog
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}
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# If XCATBYPASS is set, invoke the plugin process_request method directly
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# without going through the socket connection to the xcatd daemon
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if ($ENV{XCATBYPASS}) {
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#add current userid to the request
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if (ref($request) eq 'HASH') { # the request is an array, not pure XML
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if (!(defined($request->{username}))) {
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$request->{username}->[0] = getpwuid($>);
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}
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# only allow root to run
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unless ($request->{username}->[0] =~ /root/) {
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print ("WARNING: Only allow root to run XCATBYPASS mode, your current user ID is $request->{username}->[0].\n");
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return 0;
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}
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}
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# Load plugins from either specified or default dir
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require xCAT::Table;
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my %cmd_handlers;
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my @plugins_dirs = split('\:',$ENV{XCATBYPASS});
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if (-d $plugins_dirs[0]) {
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foreach (@plugins_dirs) {
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$plugins_dir = $_;
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scan_plugins();
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}
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} else {
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# figure out default plugins dir
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#my $sitetab=xCAT::Table->new('site');
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#unless ($sitetab) {
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# print ("ERROR: Unable to open basic site table for configuration\n");
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#}
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$plugins_dir=$::XCATROOT.'/lib/perl/xCAT_plugin';
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scan_plugins();
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}
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populate_site_hash();
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# don't do XML transformation -- assume request is well-formed
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# my $xmlreq=XMLout($request,RootName=>xcatrequest,NoAttr=>1,KeyAttr=>[]);
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# $request = XMLin($xmlreq,SuppressEmpty=>undef,ForceArray=>1) ;
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# Call the plugin directly
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# ${"xCAT_plugin::".$modname."::"}{process_request}->($request,$callback);
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plugin_command($request,undef,$callback);
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return 0;
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}
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# No XCATBYPASS, so establish a socket connection with the xcatd daemon
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# and submit the request
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if ($ENV{XCATHOST}) {
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$xcathost=$ENV{XCATHOST};
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}
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my %connargs=();
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if ($xcathost =~ s/%([^\]|:]*)//) {
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$connargs{PeerScope} = $1;
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}
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$connargs{PeerAddr} = $xcathost;
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$connargs{Timeout} = 15;
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if ($connargs{PeerScope} and $connargs{PeerScope} =~ /[a-zA-Z]/) { #non-numeric, need to translate...
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my @ipdata = `ip link`;
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@ipdata = grep(/[^@]$connargs{PeerScope}(:|@)/,@ipdata);
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if (scalar(@ipdata) != 1) {
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print STDERR "Unable to identify scope ".$connargs{PeerScope}."\n";
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exit(1);
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}
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$connargs{PeerScope} = $ipdata[0];
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$connargs{PeerScope} =~ s/:.*//;
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}
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my $pclient;
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if ($inet6support) {
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$pclient = IO::Socket::INET6->new(
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%connargs,
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);
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} else {
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$pclient = IO::Socket::INET->new(
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PeerAddr => $xcathost,
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Timeout => 15,
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);
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}
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unless ($pclient) {
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print "Unable to open socket connection to xcatd daemon on $xcathost.\n";
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print "Verify that the xcatd daemon is running and that your SSL setup is correct.\n";
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if ($@ =~ /SSL Timeout/) {
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die "Connection failure: SSL Timeout or incorrect certificates in ~/.xcat";
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} else {
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die "Connection failure: $@"
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}
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}
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my $client;
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if (-r $keyfile and -r $certfile and -r $cafile) {
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$client = IO::Socket::SSL->start_SSL($pclient,
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SSL_key_file => $keyfile,
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SSL_cert_file => $certfile,
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SSL_ca_file => $cafile,
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SSL_use_cert => 1,
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Timeout => 0,
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);
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} else {
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$client = IO::Socket::SSL->start_SSL($pclient,
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Timeout => 0,
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);
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}
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my $msg;
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my $encode = "storable";
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my $straightprint=0;
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if ($ENV{XCATXMLTRACE} or $ENV{XCATXMLWARNING}) { $encode="xml"; }
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if (ref($request) eq 'HASH') { # the request is an array, not pure XML
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print $client "xcatencoding: $encode\n";
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my $encok=<$client>;
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send_request($request,$client,$encode);
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} else { #XML
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$straightprint=1;
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$msg=$request;
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print $client $msg;
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}
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$SIG{TERM} = $SIG{INT} = sub { send_request({abortcommand=>1},$client,$encode); exit 0; };
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my $response;
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my $rsp;
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my $cleanexit=0;
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if ($encode eq 'xml') {
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my $massresponse="<massresponse>";
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my $nextcoalescetime=time()+1;
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my $coalescenow=0;
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my $flags=fcntl($client,F_GETFL,0);
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$flags |= O_NONBLOCK; #select can be a bit.. fickle, make sysread work more easily...
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fcntl($client,F_SETFL,$flags);
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my $clientsel = new IO::Select;
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$clientsel->add($client);
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my $line;
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my $newdata=0;
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while (1) {
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my $shouldexit;
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if ($newdata and ($coalescenow or time() > $nextcoalescetime)) {
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$coalescenow=0;
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$newdata=0;
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$nextcoalescetime=time()+1;
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$massresponse .= "</massresponse>";
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$shouldexit = rspclean($massresponse,$callback);
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$massresponse="<massresponse>";
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}
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if ($shouldexit) {
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$cleanexit=1;
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last;
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}
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$line = "";
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$clientsel->can_read(0.5);
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my $readbytes;
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do { $readbytes=sysread($client,$line,65535,length($line)); } while ($readbytes);
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unless (length($line)) {
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if (not defined $readbytes and $! == EAGAIN) { next; }
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last;
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}
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$newdata=1;
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$response .= $line;
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if ($line =~ m/<\/xcatresponse>\s*\z/) {
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if ($line =~ /serverdone/) { $coalescenow=1; } #if serverdone was detected, hint at coalesce code to flush things out now
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#this means that coalesce can be triggered by stray words in the output prematurely, but that's harmless
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#replace ESC with xxxxESCxxx because XMLin cannot handle it
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$response =~ s/\e/xxxxESCxxxx/g;
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if ($ENV{XCATXMLTRACE}) { print $response; }
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$massresponse.=$response;
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$response='';
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if($ENV{XCATXMLWARNING}) {
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validateXML($response);
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}
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}
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}
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if (not $cleanexit and $massresponse ne "<massresponse>") {
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$massresponse .= "</massresponse>";
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$cleanexit = rspclean($massresponse,$callback);
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}
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} else { #storable encode
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my $rsp;
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eval { $rsp = fd_retrieve($client); };
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while ($rsp) {
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my @rsps;
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if (ref $rsp eq 'ARRAY') {
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@rsps = @$rsp;
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} else {
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@rsps = ($rsp);
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}
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foreach (@rsps) {
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$callback->($_);
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if ($_->{serverdone}) {
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$cleanexit=1;
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last;
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}
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}
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$rsp = undef;
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eval { $rsp = fd_retrieve($client); };
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}
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}
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$massresponse="";
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unless ($cleanexit) {
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print STDERR "ERROR/WARNING: communication with the xCAT server seems to have been ended prematurely\n";
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}
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sub validateXML {
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my $xml = shift;
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my @lines = split /\n/, $xml;
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my $invalidNewline = 0;
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my $contentsColon = 0;
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my $contentsLine;
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foreach (@lines) {
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if(!$invalidNewline) {
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if( ($_ =~ /<contents>/ && $_ !~ /<\/contents>/) ||
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($_ =~ /<desc>/ && $_ !~ /<\/desc>/)) {
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$invalidNewline = 1;
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print "Possible invalid XML using newlines found: \n$xml\n";
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}
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}
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if($_ =~ /<contents>.+:.+<\/contents>/) {
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$contentsColon = 1;
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$contentsLine = $_;
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}
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if($_ =~ /<desc>.+<\/desc>/) {
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$contentsColon = 0;
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}
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if($contentsColon && $_ =~ /<desc><\/desc>/) {
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print "Possible invalid XML found(data contents using colon and blank description): \n$contentsLine\n$_\n";
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$contentsColon = 0;
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}
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}
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}
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###################################
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# scan_plugins
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# will load all plugin perl modules and build a list of supported
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# commands
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#
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# NOTE: This is copied from xcatd (last merge 11/23/09).
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# TODO: Will eventually move to using common source....
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###################################
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sub scan_plugins {
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my @plugins=glob($plugins_dir."/*.pm");
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foreach (@plugins) {
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/.*\/([^\/]*).pm$/;
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my $modname = $1;
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unless ( eval { require "$_" }) {
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# xCAT::MsgUtils->message("S","Error loading module ".$_." ...skipping");
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print "Error loading module $_ ...skipping\n";
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next;
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}
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no strict 'refs';
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my $cmd_adds=${"xCAT_plugin::".$modname."::"}{handled_commands}->();
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foreach (keys %$cmd_adds) {
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my $value = $_;
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if (defined($cmd_handlers{$_})) {
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push @{$cmd_handlers{$_}},[$modname,$cmd_adds->{$_}];
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} else {
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$cmd_handlers{$_} = [ [$modname,$cmd_adds->{$_}] ];
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}
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}
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}
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foreach (@plugins) {
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no strict 'refs';
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/.*\/([^\/]*).pm$/;
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my $modname = $1;
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unless (defined(${"xCAT_plugin::".$modname."::"}{init_plugin})) {
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next;
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}
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${"xCAT_plugin::".$modname."::"}{init_plugin}->(\&do_request);
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}
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}
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###################################
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# plugin_command
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# will invoke the correct plugin
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#
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# NOTE: This is copied from xcatd (last merge 11/23/09).
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# TODO: Will eventually move to using common source....
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###################################
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sub plugin_command {
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my $req = shift;
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my $sock = shift;
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my $callback = shift;
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my %handler_hash;
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my $usesiteglobal = 0;
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# We require these only in bypass mode to reduce start up time for the normal case
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#use lib "$::XCATROOT/lib/perl";
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#use xCAT::NodeRange;
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require lib;
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lib->import("$::XCATROOT/lib/perl");
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require xCAT::NodeRange;
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require xCAT::Table;
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$Main::resps={};
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my $xmlreq;
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if (ref($req) ne 'HASH') { # the request XML, get an array
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$xmlreq=$req; # save the original XML
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$req = XMLin($xmlreq,SuppressEmpty=>undef,ForceArray=>1) ;
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}
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my @nodes;
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if ($req->{node}) {
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@nodes = @{$req->{node}};
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} elsif ($req->{noderange} and $req->{noderange}->[0]) {
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@nodes = xCAT::NodeRange::noderange($req->{noderange}->[0]);
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if (xCAT::NodeRange::nodesmissed()) {
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# my $rsp = {errorcode=>1,error=>"Invalid nodes in noderange:".join(',',xCAT::NodeRange::nodesmissed)};
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# my $rsp->{serverdone} = {};
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print "Invalid nodes in noderange:".join(',',xCAT::NodeRange::nodesmissed())."\n";
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# if ($sock) {
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# print $sock XMLout($rsp,RootName=>'xcatresponse' ,NoAttr=>1);
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# }
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# return ($rsp);
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return 1;
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}
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unless (@nodes) {
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$req->{emptynoderange} = [1];
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}
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}
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if (@nodes) { $req->{node} = \@nodes; }
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my %unhandled_nodes;
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foreach (@nodes) {
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$unhandled_nodes{$_}=1;
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}
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my $useunhandled=0;
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if (defined($cmd_handlers{$req->{command}->[0]})) {
|
|
my $hdlspec;
|
|
my @globalhandlers=();
|
|
my $useglobals=1; #If it stays 1, then use globals normally, if 0, use only for 'unhandled_nodes, if -1, don't do at all
|
|
foreach (@{$cmd_handlers{$req->{command}->[0]}}) {
|
|
$hdlspec =$_->[1];
|
|
my $ownmod = $_->[0];
|
|
if ($hdlspec =~ /^site:/) { #A site entry specifies a plugin
|
|
my $sitekey = $hdlspec;
|
|
$sitekey =~ s/^site://;
|
|
#$sitetab = xCAT::Table->new('site');
|
|
#my $sent = $sitetab->getAttribs({key=>$sitekey},['value']);
|
|
#if ($sent and $sent->{value}) { #A site style plugin specification is just like
|
|
if ($::XCATSITEVALS{$sitekey}) { #A site style plugin specification is just like
|
|
#a static global, it grabs all nodes rather than some
|
|
$useglobals = -1; #If they tried to specify anything, don't use the default global handlers at all
|
|
unless (@nodes) {
|
|
$handler_hash{$::XCATSITEVALS{$sitekey}} = 1;
|
|
$usesiteglobal = 1;
|
|
}
|
|
foreach (@nodes) { #Specified a specific plugin, not a table lookup
|
|
$handler_hash{$::XCATSITEVALS{$sitekey}}->{$_} = 1;
|
|
}
|
|
}
|
|
} elsif ($hdlspec =~ /:/) { #Specificed a table lookup path for plugin name
|
|
if (@nodes) { # only use table lookup plugin if nodelist exists
|
|
# Usage will be handled in common AAAhelp plugin
|
|
|
|
$useglobals = 0; #Only contemplate nodes that aren't caught through searching below in the global handler
|
|
$useunhandled=1;
|
|
my $table;
|
|
my $cols;
|
|
($table,$cols) = split(/:/,$hdlspec);
|
|
my @colmns=split(/,/,$cols);
|
|
my @columns;
|
|
my $hdlrtable=xCAT::Table->new($table);
|
|
unless ($hdlrtable) {
|
|
#TODO: proper error handling
|
|
}
|
|
my $node;
|
|
my $colvals = {};
|
|
foreach my $colu (@colmns) {
|
|
if ($colu =~ /=/) { #a value redirect to a pattern/specific name
|
|
my $coln; my $colv;
|
|
($coln,$colv) = split(/=/,$colu,2);
|
|
$colvals->{$coln} = $colv;
|
|
push (@columns,$coln);
|
|
} else {
|
|
push (@columns,$colu);
|
|
}
|
|
}
|
|
|
|
|
|
unless (@nodes) { #register the plugin in the event of usage
|
|
$handler_hash{$ownmod} = 1;
|
|
$useglobals = 1;
|
|
}
|
|
my $hdlrcache;
|
|
if ($hdlrtable) {
|
|
$hdlrcache = $hdlrtable->getNodesAttribs(\@nodes,\@columns);
|
|
}
|
|
foreach $node (@nodes) {
|
|
unless ($hdlrcache) { next; }
|
|
my $attribs = $hdlrcache->{$node}->[0]; #$hdlrtable->getNodeAttribs($node,\@columns);
|
|
unless (defined($attribs)) { next; }
|
|
foreach (@columns) {
|
|
my $col=$_;
|
|
if (defined($attribs->{$col})) {
|
|
if ($colvals->{$col}) { #A pattern match style request.
|
|
if ($attribs->{$col} =~ /$colvals->{$col}/) {
|
|
$handler_hash{$ownmod}->{$node} = 1;
|
|
delete $unhandled_nodes{$node};
|
|
last;
|
|
}
|
|
} else {
|
|
# call the plugin that matches the table value for that node
|
|
if ($attribs->{$col} =~ /$ownmod/) {
|
|
$handler_hash{$attribs->{$col}}->{$node} = 1;
|
|
delete $unhandled_nodes{$node};
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
$hdlrtable->close;
|
|
} # end if (@nodes)
|
|
|
|
} else {
|
|
push @globalhandlers,$hdlspec;
|
|
}
|
|
}
|
|
if ($useglobals == 1) { #Behavior when globals have not been overriden
|
|
my $hdlspec;
|
|
foreach $hdlspec (@globalhandlers) {
|
|
unless (@nodes) {
|
|
$handler_hash{$hdlspec} = 1;
|
|
}
|
|
foreach (@nodes) { #Specified a specific plugin, not a table lookup
|
|
$handler_hash{$hdlspec}->{$_} = 1;
|
|
}
|
|
}
|
|
} elsif ($useglobals == 0) {
|
|
unless (@nodes or $usesiteglobal) { #if something like 'makedhcp -n',
|
|
foreach (keys %handler_hash) {
|
|
if ($handler_hash{$_} == 1) {
|
|
delete ($handler_hash{$_})
|
|
}
|
|
}
|
|
}
|
|
foreach $hdlspec (@globalhandlers) {
|
|
unless (@nodes or $usesiteglobal) {
|
|
$handler_hash{$hdlspec} = 1;
|
|
}
|
|
foreach (keys %unhandled_nodes) { #Specified a specific plugin, not a table lookup
|
|
$handler_hash{$hdlspec}->{$_} = 1;
|
|
}
|
|
}
|
|
} #Otherwise, global handler is implicitly disabled
|
|
} else {
|
|
print "Error request: $req->{command}->[0] has no known plugin for it.\n";
|
|
return 1;
|
|
}
|
|
if ($useunhandled) {
|
|
my $queuelist;
|
|
foreach (@{$cmd_handlers{$req->{command}->[0]}}) {
|
|
my $queueitem = $_->[1];
|
|
if (($queueitem =~ /:/) and !($queuelist =~ /($queueitem)/)) {
|
|
$queuelist .= "$_->[1];";
|
|
}
|
|
}
|
|
$queuelist =~ s/;$//;
|
|
$queuelist =~ s/:/./g;
|
|
foreach (keys %unhandled_nodes) {
|
|
# if ($sock) {
|
|
# print $sock XMLout({node=>[{name=>[$_],data=>["Unable to identify plugin for this command, check relevant tables: $queuelist"],errorcode=>[1]}]},NoAttr=>1,RootName=>'xcatresponse');
|
|
# } else {
|
|
my $tabdesc = $queuelist;
|
|
$tabdesc =~ s/=.*$//;
|
|
$callback->({node=>[{name=>[$_],error=>['Unable to identify plugin for this command, check relevant tables: '.$tabdesc],errorcode=>[1]}]});
|
|
# }
|
|
}
|
|
}
|
|
|
|
## FOR NOW, DON'T FORK CHILD PROCESS TO MAKE BYPASS SIMPLER AND EASIER TO DEBUG
|
|
# $plugin_numchildren=0;
|
|
# %plugin_children=();
|
|
# $SIG{CHLD} = \&plugin_reaper; #sub {my $plugpid; while (($plugpid = waitpid(-1, WNOHANG)) > 0) { if ($plugin_children{$plugpid}) { delete $plugin_children{$plugpid}; $plugin_numchildren--; } } };
|
|
# my $check_fds;
|
|
# if ($sock) {
|
|
# $check_fds = new IO::Select;
|
|
# }
|
|
foreach (keys %handler_hash) {
|
|
my $modname = $_;
|
|
# my $shouldbealivepid=$$;
|
|
if (-r $plugins_dir."/".$modname.".pm") {
|
|
require $plugins_dir."/".$modname.".pm";
|
|
# $plugin_numchildren++;
|
|
# my $pfd; #will be referenced for inter-process messaging.
|
|
# my $parfd; #not causing a problem that I discern yet, but theoretically
|
|
# my $child;
|
|
# if ($sock) { #If $sock not passed in, don't fork..
|
|
# socketpair($pfd, $parfd,AF_UNIX,SOCK_STREAM,PF_UNSPEC) or die "socketpair: $!";
|
|
# #pipe($pfd,$cfd);
|
|
# $parfd->autoflush(1);
|
|
# $pfd->autoflush(1);
|
|
# $child = xCAT::Utils->xfork;
|
|
# } else {
|
|
# $child = 0;
|
|
# }
|
|
# unless (defined $child) { die "Fork failed"; }
|
|
# if ($child == 0) {
|
|
# if ($parfd) { #If xCAT is doing multiple requests in same communication PID, things would get unfortunate otherwise
|
|
# $parent_fd = $parfd;
|
|
# }
|
|
my $oldprogname=$$progname;
|
|
$$progname=$oldprogname.": $modname instance";
|
|
# if ($sock) { close $pfd; }
|
|
unless ($handler_hash{$_} == 1) {
|
|
my @nodes = sort {($a =~ /(\d+)/)[0] <=> ($b =~ /(\d+)/)[0] || $a cmp $b } (keys %{$handler_hash{$_}});
|
|
$req->{node}=\@nodes;
|
|
}
|
|
no strict "refs";
|
|
# eval { #REMOVEEVALFORDEBUG
|
|
# if ($dispatch_requests) {
|
|
# backup the original req and recover it after the a run
|
|
my $org_req = {%$req};
|
|
dispatch_request($req,$callback,$modname);
|
|
$req = {%$org_req};
|
|
# } else {
|
|
# $SIG{CHLD}='DEFAULT';
|
|
# ${"xCAT_plugin::".$modname."::"}{process_request}->($req,$callback,\&do_request);
|
|
# }
|
|
$$progname=$oldprogname;
|
|
# if ($sock) {
|
|
# close($parent_fd);
|
|
# xexit(0);
|
|
# }
|
|
# }; #REMOVEEVALFORDEBUG
|
|
# if ($sock or $shouldbealivepid != $$) { #We shouldn't still be alive, try to send as much detail to parent as possible as to why
|
|
# my $error= "$modname plugin bug, pid $$, process description: '$$progname'";
|
|
# if ($@) {
|
|
# $error .= " with error '$@'";
|
|
# } else { #Sys::Virt and perhaps Net::SNMP sometimes crashes in a way $@ won't catch..
|
|
# $error .= " with missing eval error, probably due to special manipulation of $@ or strange circumstances in an XS library, remove evals in xcatd marked 'REMOVEEVALFORDEBUG and run xcatd -f for more info";
|
|
# }
|
|
# if (scalar (@nodes)) { #Don't know which of the nodes, so one error message warning about the possibliity..
|
|
# $error .= " while trying to fulfill request for the following nodes: ".join(",",@nodes);
|
|
# }
|
|
# xCAT::MsgUtils->message("S","xcatd: $error");
|
|
# $callback->({error=>[$error],errorcode=>[1]});
|
|
# xexit(0); #Die like we should have done
|
|
# } elsif ($@) { #We are still alive, should be alive, but yet we have an error. This means we are in the case of 'do_request' or something similar. Forward up the death since our communication channel is intact..
|
|
# die $@;
|
|
# }
|
|
# } else {
|
|
# $plugin_children{$child}=1;
|
|
# close $parfd;
|
|
# $check_fds->add($pfd);
|
|
# }
|
|
} else {
|
|
my $pm_name = $plugins_dir."/".$modname.".pm";
|
|
foreach my $node (keys %{$handler_hash{$_}}) {
|
|
if ($sock) {
|
|
print $sock XMLout({node=>[{name=>[$node],data=>["Cannot find the perl module to complete the operation: $pm_name"],errorcode=>[1]}]},NoAttr=>1,RootName=>'xcatresponse');
|
|
} else {
|
|
$callback->({node=>[{name=>[$node],data=>["Cannot find the perl module to complete the operation: $pm_name"],errorcode=>[1]}]});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
unless ($sock) { return $Main::resps };
|
|
# while (($plugin_numchildren > 0) and ($check_fds->count > 0)) { #this tracks end of useful data from children much more closely
|
|
# relay_fds($check_fds,$sock);
|
|
# }
|
|
# #while (relay_fds($check_fds,$sock)) {}
|
|
# my %done;
|
|
# $done{serverdone} = {};
|
|
# if ($req->{transid}) {
|
|
# $done{transid}=$req->{transid}->[0];
|
|
# }
|
|
# if ($sock) {
|
|
# my $clientpresence = new IO::Select; #The client may have gone away without confirmation, don't PIPE over this trivial thing
|
|
# $clientpresence->add($sock);
|
|
# if ($clientpresence->can_write(5)) {
|
|
# print $sock XMLout(\%done,RootName => 'xcatresponse',NoAttr=>1);
|
|
# }
|
|
# }
|
|
}
|
|
|
|
|
|
|
|
|
|
###################################
|
|
# dispatch_request
|
|
# dispatch the requested command
|
|
#
|
|
# NOTE: This is copied from xcatd (last merge 11/23/09).
|
|
# All we really need from this subroutine is to call preprocess_request
|
|
# and to only run the command for nodes handled by the local server
|
|
# Will eventually move to using common source....
|
|
###################################
|
|
sub dispatch_request {
|
|
# %dispatched_children=();
|
|
require xCAT::Utils;
|
|
my $req = shift;
|
|
$dispatch_cb = shift;
|
|
|
|
my $modname = shift;
|
|
my $reqs = [];
|
|
# my $child_fdset = new IO::Select;
|
|
no strict "refs";
|
|
|
|
#Hierarchy support. Originally, the default scope for noderange commands was
|
|
#going to be the servicenode associated unless overriden.
|
|
#However, assume for example that you have blades and a blade is the service node
|
|
#rpower being executed by the servicenode for one of its subnodes would have to
|
|
#reach it's own management module. This has the potential to be non-trivial for some quite possible network configurations.
|
|
#Since plugins may commonly experience this, a preprocess_request implementation
|
|
#will for now be required for a command to be scaled through service nodes
|
|
#If the plugin offers a preprocess method, use it to set the request array
|
|
if (defined(${"xCAT_plugin::".$modname."::"}{preprocess_request})) {
|
|
$SIG{CHLD}='DEFAULT';
|
|
$reqs = ${"xCAT_plugin::".$modname."::"}{preprocess_request}->($req,$dispatch_cb,\&do_request);
|
|
} else { #otherwise, pass it in without hierarchy support
|
|
$reqs = [$req];
|
|
}
|
|
|
|
# $dispatch_children=0;
|
|
# $SIG{CHLD} = \&dispatch_reaper; #sub {my $cpid; while (($cpid =waitpid(-1, WNOHANG)) > 0) { if ($dispatched_children{$cpid}) { delete $dispatched_children{$cpid}; $dispatch_children--; } } };
|
|
my $onlyone=0;
|
|
if (defined $reqs and (scalar(@{$reqs}) == 1)) {
|
|
$onlyone=1;
|
|
}
|
|
|
|
foreach (@{$reqs}) {
|
|
# my $pfd;
|
|
# my $parfd; #use a private variable so it won't trounce itself recursively
|
|
# my $child;
|
|
delete $_->{noderange};
|
|
#----- added to Client.pm -----#
|
|
if ($_->{node}) {
|
|
$_->{noderange}->[0]=join(',',@{$_->{node}});
|
|
}
|
|
#----- end added to Client.pm -----#
|
|
|
|
if (ref $_->{'_xcatdest'} and (ref $_->{'_xcatdest'}) eq 'ARRAY') {
|
|
_->{'_xcatdest'} = $_->{'_xcatdest'}->[0];
|
|
}
|
|
if ($onlyone and not ($_->{'_xcatdest'} and xCAT::NetworkUtils->thishostisnot($_->{'_xcatdest'}))) {
|
|
$SIG{CHLD}='DEFAULT';
|
|
${"xCAT_plugin::".$modname."::"}{process_request}->($_,$dispatch_cb,\&do_request);
|
|
return;
|
|
}
|
|
|
|
# socketpair($pfd, $parfd,AF_UNIX,SOCK_STREAM,PF_UNSPEC) or die "socketpair: $!";
|
|
# $parfd->autoflush(1);
|
|
# $pfd->autoflush(1);
|
|
# $child = xCAT::Utils->xfork;
|
|
# if ($child) {
|
|
# $dispatch_children++;
|
|
# $dispatched_children{$child}=1;
|
|
# $child_fdset->add($pfd);
|
|
# next;
|
|
# }
|
|
# unless (defined $child) {
|
|
# $dispatch_cb->({error=>['Fork failure dispatching request'],errorcode=>[1]});
|
|
# }
|
|
# undef $SIG{CHLD};
|
|
# $dispatch_parentfd = $parfd;
|
|
my @prexcatdests=();
|
|
my @xcatdests=();
|
|
if (ref($_->{'_xcatdest'}) eq 'ARRAY') { #If array, consider it an 'anycast' operation, broadcast done through dupe
|
|
#requests, or an alternative join '&' maybe?
|
|
@prexcatdests=@{$_->{'_xcatdest'}};
|
|
} else {
|
|
@prexcatdests=($_->{'_xcatdest'});
|
|
}
|
|
foreach (@prexcatdests) {
|
|
if ($_ and /,/) {
|
|
push @xcatdests,split /,/,$_;
|
|
} else {
|
|
push @xcatdests,$_;
|
|
}
|
|
}
|
|
my $xcatdest;
|
|
my $numdests=scalar(@xcatdests);
|
|
my $request_satisfied=0;
|
|
foreach $xcatdest (@xcatdests) {
|
|
my $dlock;
|
|
if ($xcatdest and xCAT::NetworkUtils->thishostisnot($xcatdest)) {
|
|
#----- added to Client.pm -----#
|
|
$dispatch_cb->({warning=>['XCATBYPASS is set, skipping hierarchy call to '.$_->{'_xcatdest'}.'']});
|
|
#----- end added to Client.pm -----#
|
|
|
|
# #mkpath("/var/lock/xcat/"); #For now, limit intra-xCAT requests to one at a time, to mitigate DB handle usage
|
|
# #open($dlock,">","/var/lock/xcat/dispatchto_$xcatdest");
|
|
# #flock($dlock,LOCK_EX);
|
|
# $ENV{XCATHOST} = ($xcatdest =~ /:/ ? $xcatdest : $xcatdest.":3001" );
|
|
# $$progname.=": connection to ".$ENV{XCATHOST};
|
|
# my $errstr;
|
|
# eval {
|
|
# undef $_->{'_xcatdest'};
|
|
# xCAT::Client::submit_request($_,\&dispatch_callback,$xcatdir."/cert/server-cred.pem",$xcatdir."/cert/server-cred.pem",$xcatdir."/cert/ca.pem");
|
|
# };
|
|
# if ($@) {
|
|
# $errstr=$@;
|
|
# }
|
|
# #unlink("/var/lock/xcat/dispatchto_$xcatdest");
|
|
# #flock($dlock,LOCK_UN);
|
|
# if ($errstr) {
|
|
# if ($numdests == 1) {
|
|
# dispatch_callback({error=>["Unable to dispatch command to ".$ENV{XCATHOST}.", command will not make changes to that server ($errstr)"],errorcode=>[1]});
|
|
# xCAT::MsgUtils->message("S","Error dispatching request to ".$ENV{XCATHOST}.": ".$errstr);
|
|
# } else {
|
|
# xCAT::MsgUtils->message("S","Error dispatching request to ".$ENV{XCATHOST}.", trying other service nodes: ".$errstr);
|
|
# }
|
|
# next;
|
|
# } else {
|
|
# $request_satisfied=1;
|
|
# last;
|
|
# }
|
|
} else {
|
|
$$progname.=": locally executing";
|
|
$SIG{CHLD}='DEFAULT';
|
|
# ${"xCAT_plugin::".$modname."::"}{process_request}->($_,\&dispatch_callback,\&do_request);
|
|
#----- changed in Client.pm -----#
|
|
${"xCAT_plugin::".$modname."::"}{process_request}->($_,$dispatch_cb,\&do_request);
|
|
#----- end changed in Client.pm -----#
|
|
last;
|
|
}
|
|
}
|
|
# if ($numdests > 1 and not $request_satisfied) {
|
|
# xCAT::MsgUtils->message("S","Error dispatching a request to all possible service nodes for request");
|
|
# dispatch_callback({error=>["Failed to dispatch command to any of the following service nodes: ".join(",",@xcatdests)],errorcode=>[1]});
|
|
# }
|
|
|
|
# xexit;
|
|
}
|
|
#while (($dispatch_children > 0) and ($child_fdset->count > 0)) { relay_dispatch($child_fdset) }
|
|
#while (relay_dispatch($child_fdset)) { } #Potentially useless drain.
|
|
}
|
|
|
|
|
|
|
|
###################################
|
|
# do_request
|
|
# called from a plugin to execute another xCAT plugin command internally
|
|
#
|
|
# NOTE: This is copied from xcatd (last merge 11/23/09).
|
|
# Will eventually move to using common source....
|
|
###################################
|
|
sub do_request {
|
|
my $req = shift;
|
|
my $second = shift;
|
|
my $rsphandler = \&build_response;
|
|
my $sock = undef;
|
|
if ($second) {
|
|
if (ref($second) eq "CODE") {
|
|
$rsphandler = $second;
|
|
} elsif (ref($second) eq "GLOB") {
|
|
$sock = $second;
|
|
}
|
|
}
|
|
|
|
#my $sock = shift; #If no sock, will return a response hash
|
|
if ($cmd_handlers{$req->{command}->[0]}) {
|
|
return plugin_command($req,$sock,$rsphandler);
|
|
} elsif ($req->{command}->[0] eq "noderange" and $req->{noderange}) {
|
|
my @nodes = xCAT::NodeRange::noderange($req->{noderange}->[0]);
|
|
my %resp;
|
|
if (xCAT::NodeRange::nodesmissed()) {
|
|
$resp{warning}="Invalid nodes in noderange:".join ',',xCAT::NodeRange::nodesmissed() ."\n";
|
|
}
|
|
$resp{serverdone} = {};
|
|
@{$resp{node}}=@nodes;
|
|
if ($req->{transid}) {
|
|
$resp{transid}=$req->{transid}->[0];
|
|
}
|
|
if ($sock) {
|
|
print $sock XMLout(\%resp,RootName => 'xcatresponse',NoAttr=>1);
|
|
} else {
|
|
return (\%resp);
|
|
}
|
|
} else {
|
|
my %resp=(error=>"Unsupported request");
|
|
$resp{serverdone} = {};
|
|
if ($req->{transid}) {
|
|
$resp{transid}=$req->{transid}->[0];
|
|
}
|
|
if ($sock) {
|
|
print $sock XMLout(\%resp,RootName => 'xcatresponse',NoAttr=>1);
|
|
} else {
|
|
return (\%resp);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
###################################
|
|
# build_response
|
|
# This callback handles responses from nested level plugin calls.
|
|
# It builds a merged hash of all responses that gets passed back
|
|
# to the calling plugin.
|
|
# Note: Need to create a "deep clone" of this response to add to the
|
|
# return, otherwise next time through the referenced data is overwritten
|
|
#
|
|
###################################
|
|
sub build_response {
|
|
my $rsp = shift;
|
|
require Storable;
|
|
foreach (keys %$rsp) {
|
|
my $subresp = Storable::dclone($rsp->{$_});
|
|
push (@{$Main::resps->{$_}}, @{$subresp});
|
|
}
|
|
}
|
|
|
|
|
|
|
|
} # end of submit_request()
|
|
|
|
####################################
|
|
# populates all the site attributes into %::XCATSITEVALS
|
|
# This is used with XCATBYPASS=1
|
|
###################################
|
|
sub populate_site_hash {
|
|
%::XCATSITEVALS=();
|
|
my $sitetab = xCAT::Table->new('site',-create=>0);
|
|
unless ($sitetab) {
|
|
print ("ERROR: Unable to open basic site table for configuration\n");
|
|
return;
|
|
}
|
|
my @records = $sitetab->getAllAttribs(qw/key value/);
|
|
foreach (@records) {
|
|
$::XCATSITEVALS{$_->{key}}=$_->{value};
|
|
}
|
|
}
|
|
|
|
|
|
|
|
##########################################
|
|
# handle_response is a default callback that can be passed into submit_request()
|
|
# It is invoked repeatedly by submit_request() to print out the data returned by
|
|
# the plugin.
|
|
#
|
|
# The normal flow is:
|
|
# -> client cmd (e.g. nodels, which is just a link to xcatclient)
|
|
# -> xcatclient
|
|
# -> submit_request()
|
|
# -> send xml request to xcatd
|
|
# -> xcatd
|
|
# -> process_request() of the plugin
|
|
# <- plugin callback
|
|
# <- xcatd
|
|
# <- xcatd sends xml response to client
|
|
# <- submit_request() read response
|
|
# <- handle_response() prints responses and saves exit codes
|
|
# <- xcatclient gets exit code and exits
|
|
#
|
|
# But in XCATBYPASS mode, the flow is:
|
|
# -> client cmd (e.g. nodels, which is just a link to xcatclient)
|
|
# -> xcatclient
|
|
# -> submit_request()
|
|
# -> process_request() of the plugin
|
|
# <- handle_response() prints responses and saves exit codes
|
|
# <- xcatclient gets exit code and exits
|
|
#
|
|
# Format of the response hash:
|
|
# {data => [ 'data str1', 'data str2', '...' ] }
|
|
#
|
|
# Results are printed as:
|
|
# data str1
|
|
# data str2
|
|
#
|
|
# or:
|
|
# {data => [ {desc => [ 'desc1' ],
|
|
# contents => [ 'contents1' ] },
|
|
# {desc => [ 'desc2 ],
|
|
# contents => [ 'contents2' ] }
|
|
# :
|
|
# ] }
|
|
# NOTE: In this format, only the data array can have more than one
|
|
# element. All other arrays are assumed to be a single element.
|
|
# Results are printed as:
|
|
# desc1: contents1
|
|
# desc2: contents2
|
|
#
|
|
# or:
|
|
# {node => [ {name => ['node1'],
|
|
# data => [ {desc => [ 'node1 desc' ],
|
|
# contents => [ 'node1 contents' ] } ] },
|
|
# {name => ['node2'],
|
|
# data => [ {desc => [ 'node2 desc' ],
|
|
# contents => [ 'node2 contents' ] } ] },
|
|
# :
|
|
# ] }
|
|
# NOTE: Only the node array can have more than one element.
|
|
# All other arrays are assumed to be a single element.
|
|
#
|
|
# This was generated from the corresponding XML:
|
|
# <xcatrequest>
|
|
# <node>
|
|
# <name>node1</name>
|
|
# <data>
|
|
# <desc>node1 desc</desc>
|
|
# <contents>node1 contents</contents>
|
|
# </data>
|
|
# </node>
|
|
# <node>
|
|
# <name>node2</name>
|
|
# <data>
|
|
# <desc>node2 desc</desc>
|
|
# <contents>node2 contents</contents>
|
|
# </data>
|
|
# </node>
|
|
# </xcatrequest>
|
|
#
|
|
# Results are printed as:
|
|
# node_name: desc: contents
|
|
##########################################
|
|
sub handle_response {
|
|
my $rsp = shift;
|
|
if ($ENV{'XCATSHOWXML'}) {
|
|
my $xmlrec=XMLout($rsp,RootName=>'xcatresponse',NoAttr=>1,KeyAttr=>[]);
|
|
print "$xmlrec\n";
|
|
return;
|
|
}
|
|
#print "in handle_response\n";
|
|
# Handle errors
|
|
if (defined($rsp->{errorcode})) {
|
|
if (ref($rsp->{errorcode}) eq 'ARRAY') {
|
|
foreach my $ecode (@{$rsp->{errorcode}}) {
|
|
$xCAT::Client::EXITCODE |= $ecode;
|
|
}
|
|
}
|
|
else {
|
|
$xCAT::Client::EXITCODE |= $rsp->{errorcode};
|
|
} # assume it is a non-reference scalar
|
|
}
|
|
if ($rsp->{error}) {
|
|
#print "printing error\n";
|
|
if (ref($rsp->{error}) eq 'ARRAY') {
|
|
foreach my $text (@{$rsp->{error}}) {
|
|
if ($rsp->{NoErrorPrefix}) {
|
|
print STDERR "$text\n";
|
|
} else {
|
|
print STDERR "Error: $text\n";
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if ($rsp->{NoErrorPrefix}) {
|
|
print STDERR ($rsp->{error}."\n");
|
|
} else {
|
|
print STDERR ("Error: ".$rsp->{error}."\n");
|
|
}
|
|
}
|
|
}
|
|
if ($rsp->{warning}) {
|
|
#print "printing warning\n";
|
|
if (ref($rsp->{warning}) eq 'ARRAY') {
|
|
foreach my $text (@{$rsp->{warning}}) {
|
|
if ($rsp->{NoWarnPrefix}) {
|
|
print STDERR "$text\n";
|
|
} else {
|
|
print STDERR "Warning: $text\n";
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if ($rsp->{NoWarnPrefix}) {
|
|
print STDERR ($rsp->{warning}."\n");
|
|
} else {
|
|
print STDERR ("Warning: ".$rsp->{warning}."\n");
|
|
}
|
|
}
|
|
}
|
|
if ($rsp->{info}) {
|
|
#print "printing info\n";
|
|
if (ref($rsp->{info}) eq 'ARRAY') {
|
|
foreach my $text (@{$rsp->{info}}) {
|
|
print "$text\n";
|
|
}
|
|
}
|
|
else {
|
|
print ($rsp->{info}."\n");
|
|
}
|
|
}
|
|
|
|
if ($rsp->{sinfo}) {
|
|
if (ref($rsp->{sinfo}) eq 'ARRAY') {
|
|
foreach my $text (@{$rsp->{sinfo}}) {
|
|
print "$text\r"; $|++;
|
|
}
|
|
}
|
|
else {
|
|
print ($rsp->{sinfo}."\r"); $|++;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
# Handle {node} structure
|
|
my $errflg=0;
|
|
my $nodes=($rsp->{node});
|
|
unless (ref $nodes eq 'ARRAY') {
|
|
$nodes = [$nodes];
|
|
}
|
|
if (scalar @{$nodes}) {
|
|
#print "printing node\n";
|
|
my $node;
|
|
foreach $node (@$nodes) {
|
|
my $desc=$node->{name}->[0];
|
|
if ($node->{errorcode}) {
|
|
if (ref($node->{errorcode}) eq 'ARRAY') {
|
|
foreach my $ecode (@{$node->{errorcode}}) {
|
|
$xCAT::Client::EXITCODE |= $ecode;
|
|
}
|
|
}
|
|
else {
|
|
$xCAT::Client::EXITCODE |= $node->{errorcode};
|
|
} # assume it is a non-reference scalar
|
|
}
|
|
if ($node->{error}) {
|
|
$desc.=": Error: ".$node->{error}->[0];
|
|
$errflg=1;
|
|
}
|
|
if ($node->{warning}) {
|
|
$desc.=": Warning: ".$node->{warning}->[0];
|
|
$errflg=1;
|
|
}
|
|
if ($node->{data}) {
|
|
if (ref(\($node->{data}->[0])) eq 'SCALAR') {
|
|
$desc=$desc.": ".$node->{data}->[0];
|
|
} else {
|
|
if ($node->{data}->[0]->{desc}) {
|
|
$desc=$desc.": ".$node->{data}->[0]->{desc}->[0];
|
|
}
|
|
if ($node->{data}->[0]->{contents}) {
|
|
$desc="$desc: ".$node->{data}->[0]->{contents}->[0];
|
|
}
|
|
}
|
|
}
|
|
if ($desc) {
|
|
if ($errflg == 1) {
|
|
print STDERR ("$desc\n");
|
|
} else {
|
|
print "$desc\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# Handle {data} structure with no nodes
|
|
if ($rsp->{data}) {
|
|
#print "printing data\n";
|
|
my $data=($rsp->{data});
|
|
my $data_entry;
|
|
foreach $data_entry (@$data) {
|
|
my $desc;
|
|
if (ref(\($data_entry)) eq 'SCALAR') {
|
|
$desc=$data_entry;
|
|
} else {
|
|
if ($data_entry->{desc}) {
|
|
$desc=$data_entry->{desc}->[0];
|
|
}
|
|
if ($data_entry->{contents}) {
|
|
if ($desc) {
|
|
$desc="$desc: ".$data_entry->{contents}->[0];
|
|
} else {
|
|
$desc=$data_entry->{contents}->[0];
|
|
}
|
|
}
|
|
}
|
|
if ($desc) { print "$desc\n"; }
|
|
}
|
|
}
|
|
} # end of handle_response
|
|
|
|
|
|
|
|
|
|
|
|
|