825f8d742b
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@14949 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
188 lines
6.6 KiB
Perl
Executable File
188 lines
6.6 KiB
Perl
Executable File
#!/usr/bin/perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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# confignics postscript for configuring additional ethernet and ib NIC adapters.
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# This module parses NIC environment variables containing data from the nics table
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# for the specific node i.e.:
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# NICNODE - the node name
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# NICIPS - comma separated list of ips per NIC
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# NICHOSTNAMESUFFIXES - comma spearated list of hostname suffixes per NIC
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# NICTYPES - ethernet or infiniband
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# NICCUSTOMSCRIPTS - script to configure nic, i.e. configeth or configib
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# NICNETWORKS - network and subnetmask for the adapter.
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use strict;
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use Socket;
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# Only two args are supported for confignics:
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# "-s" to allow the install nic to be configured. If not set
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# then the install nic will not be configured.
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# "--ibaports=x" to specify the number of ports for an ib adapter.
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# This value will set in an environment variable
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# prior to calling configib.
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my $ibaports = 1; # default to one port per ib adapter.
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my $cfg_inst_nic = '';
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my $arg ='';
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while ($arg = shift(@ARGV)) {
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if ( $arg eq "-s" ) {
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$cfg_inst_nic = 1;
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} elsif ( $arg =~ /--ibaports=(\d)$/) {
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$ibaports = $1;
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}
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}
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my $ibnics = '';
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my $nicips = $ENV{NICIPS};
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my $niccustomscripts = $ENV{NICCUSTOMSCRIPTS};
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my $nictypes = $ENV{NICTYPES};
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my $installnic = $ENV{INSTALLNIC};
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my $xcatpostdir = "/xcatpost";
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my %cust_script_nics = (); # hash to save nics specified in niccustomscripts
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my $type = '';
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my $nic = '';
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my $MAC = $ENV{MACADDRESS};
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my $inst_nic = '';
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# determine which ethernet nic is the installnic.
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if ($installnic =~ /(e(n|th)d+)$/ ) {
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$inst_nic = $1;
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} elsif ($installnic eq "mac") {
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# determine nic from mac. Get all NICs and their mac addresses from ifconfig
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# and compare that with MACADDR.
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my @ifcfg_info = split(/\n/,`ifconfig -a | grep HWaddr | awk '{print \$1,\$5;}'`);
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foreach my $nic_mac (@ifcfg_info) {
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my @nicmac = split(/ /,$nic_mac);
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if (uc($nicmac[1]) eq uc($MAC)) {
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$inst_nic = $nicmac[0];
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last;
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}
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}
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} else { # INSTALLNIC not set or is not known
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system("logger -t xcat -p local4.info 'confignics: install nic $inst_nic not known '");
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}
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# niccustomscripts specifies which NICS need to be configured.
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# and which script to use to configure it.
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# Strip NIC and customscript and then call the custom script with the NIC
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# it is up to the custom script to verify information passed in NIC env vars.
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# i.e. if customscript is "eth1:configeth eth1, eth2:configeth2"
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# then first get eth1 for the nic and "configeth eth1" for the command to run"
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# the do the same for eth2.
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if ( defined $niccustomscripts && length $niccustomscripts > 0 ) {
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system("logger -t xcat -p local4.info 'confignics: processing custom scripts: $niccustomscripts '");
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foreach my $customscript (split(/,/,$niccustomscripts)) {
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my @script = ();
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if ( $customscript =~ /!/ ) {
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@script = split(/!/,$customscript);
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} else {
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@script = split(/:/,$customscript);
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}
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$cust_script_nics{$script[0]} = 1;
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my @s = split(/ /,$script[1]);
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# if installnic then verify that "-s" flag was passed in.
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if (($inst_nic ne $script[0]) || (($inst_nic eq $script[0]) && $cfg_inst_nic)) {
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runcmd("$script[1]");
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system("logger -t xcat -p local4.info 'confignics: executed custom script: $script[1] '");
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}
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}
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}
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# Get nic from nicips. If nic is in cust_script_nics hash then ignore this nic.
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# otherwise, get nictype if set or determine type from nic name, eth* or en*
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# implies ethernet, ib* implies infiniband.
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#
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# configib prefers to have ib adapters configured in one call for performance
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# reasons. So add ib nics to a list and call configib outside the loop.
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foreach my $nic_ips (split(/,/,$nicips)) {
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$type = '';
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my $type_found = 0;
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$nic = '';
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my @nic_and_ips = ();
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if ( $nic_ips =~ /!/ ) {
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@nic_and_ips = split(/!/,$nic_ips);
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} else {
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@nic_and_ips = split(/:/,$nic_ips);
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}
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$nic = $nic_and_ips[0];
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# do not configure if nic is in the customscript hash
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if ($cust_script_nics{$nic_and_ips[0]} == 1 ) {
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system("logger -t xcat -p local4.info 'confignics: nic $nic_and_ips[0] already configured through custom script '");
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}
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else {
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# Find matching type for this nic
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foreach my $nic_type (split(/,/,$nictypes)) {
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my @nic_and_type = ();
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if ( $nic_type =~ /!/ ) {
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@nic_and_type = split(/!/,$nic_type);
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} else {
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@nic_and_type = split(/:/,$nic_type);
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}
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if ($nic_and_type[0] eq $nic ) {
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$type = $nic_and_type[1];
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# verify type is "ethernet" or "infiniband"
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if ($type =~ /ethernet|infiniband/i ) {
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$type_found = 1;
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}
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last;
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}
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}
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# if no matching nic type then derive nic type from nic
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if ( !$type_found ) {
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if ( $nic =~ /(eth|en)\d+/i ) {
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$type = "ethernet";
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} elsif ($nic =~ /ib\d+/i ) {
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$type = "infiniband";
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}
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}
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if ("ethernet" eq lc($type)) {
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# Ensure to only configure the install nic if the "-s" flag was set.
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if (($inst_nic ne $nic) || (($inst_nic eq $nic) && $cfg_inst_nic)) {
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runcmd("configeth $nic");
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system("logger -t xcat -p local4.info 'confignics: executed script: configeth $nic '");
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}
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else {
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system("logger -t xcat -p local4.info 'confignics: Not configuring install nic $nic '");
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}
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} elsif ("infiniband" eq lc($type)) {
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if ($ibnics) {
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$ibnics = $ibnics . "," . $nic;
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} else {
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$ibnics = $nic;
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}
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} else {
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system("logger -t xcat -p local4.info 'confignics: unknown type $type for NIC: $nic '");
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}
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}
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}
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# Call configib now to configure all ib adapters in one call.
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if ($ibnics) {
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runcmd("NIC_IBNICS=$ibnics NIC_IBAPORTS=$ibaports configib");
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system("logger -t xcat -p local4.info 'confignics: executed script: configib for nics $ibnics '");
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}
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exit 0;
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sub runcmd {
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my $cmd = shift @_;
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$cmd .= ' 2>&1';
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my @output = `$cmd`;
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my $rc = $? >> 8;
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if ($rc) {
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system("logger -t xcat -p local4.err 'confignics: command $cmd failed with rc $rc: " . join('',@output) . "'");
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my $errout= "confignics: command $cmd failed with rc $rc.";
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print $errout;
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exit $rc;
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}
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print join("\n",@output),"\n";
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}
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