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-Let gPXE explicitly know no ProxyDHCP offer is coming and to take the given offer instead

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-Specify Initiator IQN for gPXE and IBM iSCSI configuration via DHCP


git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@3711 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
jbjohnso 2009-07-06 21:05:44 +00:00
parent 3bc4bfe0b6
commit 44eb3f9b77
1 changed files with 32 additions and 10 deletions
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42
xCAT-server/lib/xcat/plugins/dhcp.pm
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@ -229,18 +229,33 @@ sub addnode
my $doiscsi=0;
if ($ient and $ient->{server} and $ient->{target}) {
$doiscsi=1;
if (defined ($ient->{lun})) {
$lstatements = 'option root-path \"iscsi:'.$ient->{server}.':::'.$ient->{lun}.':'.$ient->{target}.'\";'.$lstatements;
} else {
$lstatements = 'option root-path \"iscsi:'.$ient->{server}.':::'.$ient->{lun}.':'.$ient->{target}.'\";'.$lstatements;
unless (defined ($ient->{lun})) { #Some firmware fails to properly implement the spec, so we must explicitly say zero for such firmware
$ient->{lun} = 0;
}
my $iscsirootpath ='iscsi:'.$ient->{server}.':6:3260:'.$ient->{lun}.':'.$ient->{target};
if (defined ($ient->{iname})) { #Attempt to use gPXE or IBM iSCSI formats to specify the initiator
#This all goes on one line, but will break it out to at least be readable in here
$lstatements = 'if option vendor-class-identifier = \"ISAN\" { ' #This is declared by IBM iSCSI initiators, will call it 'ISAN' mode
.'option isan.iqn \"'.$ient->{iname}.'\"; ' #Use vendor-spcefic option to declare the expected Initiator name
.'option isan.root-path \"'.$iscsirootpath.'\"; ' #We must *not* use standard root-path if using ISAN style options
.'} else { '
.'option root-path \"'.$iscsirootpath.'\"; ' #For everything but ISAN, use standard, RFC defined behavior for root
.'if exists gpxe.bus-id { ' #Since our iscsi-initiator-iqn is in no way a standardized thing, only use it for gPXE
. ' option iscsi-initiator-iqn \"'.$ient->{iname}.'\";' #gPXE will consider option 203 for initiator IQN
. '}'
. '}'
.$lstatements;
print $lstatements;
} else { #We stick to the good old RFC defined behavior, ISAN, gPXE, everyone should be content with this so long as no initiator name need be specified
$lstatements = 'option root-path \"'.$iscsirootpath.'\";'.$lstatements;
}
}
if ($nrent and $nrent->{netboot} and $nrent->{netboot} eq 'pxe') {
if (-f "$tftpdir/undionly.kpxe") {
if (-f "$tftpdir/xcat/xnba.kpxe") {
if ($doiscsi and $chainent and $chainent->{currstate} and ($chainent->{currstate} eq 'iscsiboot' or $chainent->{currstate} eq 'boot')) {
$lstatements = 'if exists gpxe.bus-id { filename = \"\"; } else if exists client-architecture { filename = \"undionly.kpxe\"; } '.$lstatements;
$lstatements = 'if exists gpxe.bus-id { filename = \"\"; } else if exists client-architecture { filename = \"xcat/xnba.kpxe\"; } '.$lstatements;
} else {
$lstatements = 'if exists gpxe.bus-id { filename = \"xcat/xnba/nodes/'.$node.'\"; } else if exists client-architecture { filename = \"undionly.kpxe\"; } '.$lstatements; #Only PXE compliant clients should ever receive gPXE
$lstatements = 'if exists gpxe.bus-id { filename = \"xcat/xnba/nodes/'.$node.'\"; } else if exists client-architecture { filename = \"xcat/xnba.kpxe\"; } '.$lstatements; #Only PXE compliant clients should ever receive gPXE
}
} #TODO: warn when windows
}
@ -606,7 +621,7 @@ sub process_request
$nrhash = $nrtab->getNodesAttribs($req->{node}, ['tftpserver','netboot']);
my $iscsitab = xCAT::Table->new('iscsi');
if ($iscsitab) {
$iscsients = $iscsitab->getNodesAttribs($req->{node},[qw(server target lun)]);
$iscsients = $iscsitab->getNodesAttribs($req->{node},[qw(server target lun iname)]);
}
my $mactab = xCAT::Table->new('mac');
$machash = $mactab->getNodesAttribs($req->{node},['mac']);
@ -854,11 +869,11 @@ sub addnet
$tmpmaskn=$tmpmaskn>>1;
}
# $lstatements = 'if exists gpxe.bus-id { filename = \"\"; } else if exists client-architecture { filename = \"undionly.kpxe\"; } '.$lstatements;
# $lstatements = 'if exists gpxe.bus-id { filename = \"\"; } else if exists client-architecture { filename = \"xcat/xnba.kpxe\"; } '.$lstatements;
push @netent, " if exists gpxe.bus-id { #x86, gPXE\n";
push @netent, " filename = \"xcat/xnba/nets/".$net."_".$maskbits."\";\n";
push @netent, " } else if option client-architecture = 00:00 { #x86\n";
push @netent, " filename \"undionly.kpxe\";\n";
push @netent, " filename \"xcat/xnba.kpxe\";\n";
push @netent, " } else if option vendor-class-identifier = \"Etherboot-5.4\" { #x86\n";
push @netent, " filename \"pxelinux.0\";\n";
push @netent,
@ -929,12 +944,19 @@ sub newconfig
push @dhcpconf, "#xCAT generated dhcp configuration\n";
push @dhcpconf, "\n";
push @dhcpconf, "authoritative;\n";
push @dhcpconf, "option space isan;\n";
push @dhcpconf, "option isan-encap-opts code 43 = encapsulate isan;\n";
push @dhcpconf, "option isan.iqn code 203 = string;\n";
push @dhcpconf, "option isan.root-path code 201 = string;\n";
push @dhcpconf, "option space gpxe;\n";
push @dhcpconf, "option gpxe-encap-opts code 175 = encapsulate gpxe;\n";
push @dhcpconf, "option gpxe.bus-id code 177 = string;\n";
push @dhcpconf, "option gpxe.no-pxedhcp code 176 = unsigned integer 8;\n";
push @dhcpconf, "option iscsi-initiator-iqn code 203 = string;\n"; #Only via gPXE, not a standard
push @dhcpconf, "ddns-update-style none;\n";
push @dhcpconf,
"option client-architecture code 93 = unsigned integer 16;\n";
push @dhcpconf, "option gpxe.no-pxedhcp 1;\n";
push @dhcpconf, "\n";
push @dhcpconf, "omapi-port 7911;\n"; #Enable omapi...
push @dhcpconf, "key xcat_key {\n";