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keyword <myself> as gateway in networks table

Browse Source 
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@8916 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
ligc
2011-02-24 03:15:01 +00:00
parent d4ad412781
commit ad652bc828
6 changed files with 158 additions and 5 deletions
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12
perl-xCAT/xCAT/DBobjUtils.pm
View File

@@ -1938,6 +1938,18 @@ sub getNetwkInfo
$nethash{$node}{$attr} = $_->{$attr};
}
}
if($nethash{$node}{'gateway'} eq '<myself>')
{
if(xCAT::NetworkUtils->ip_forwarding_enabled())
{
$nethash{$node}{'gateway'} = xCAT::NetworkUtils->my_ip_in_subnet($net, $NM);
}
else
{
$nethash{$node}{'gateway'} = '';
}
$nethash{$node}{'myselfgw'} = 1;
}
next;
}

75
perl-xCAT/xCAT/NetworkUtils.pm
View File

@@ -444,4 +444,79 @@ sub prefixtomask {
$mask =~ s/(....)/$1/g;
return $mask;
}
#-------------------------------------------------------------------------------
=head3 my_ip_in_subnet
Get the facing ip for some specific network
Arguments:
net - subnet, such as 192.168.0.01
mask - netmask, such as 255.255.255.0
Returns:
facing_ip - The local ip address in the subnet,
returns undef if no local ip address is in the subnet
Globals:
Error:
none
Example:
my $facingip = xCAT::NetworkUtils->my_ip_in_subnet($net, $mask);
Comments:
none
=cut
#-------------------------------------------------------------------------------
sub my_ip_in_subnet
{
my ($class, $net, $mask) = @_;
if (!$net || !$mask)
{
return undef;
}
my $fmask = xCAT::Utils::formatNetmask($mask, 0, 1);
my $localnets = xCAT::Utils->my_nets();
return $localnets->{"$net\/$fmask"};
}
#-------------------------------------------------------------------------------
=head3 ip_forwarding_enabled
Check if the ip_forward enabled on the system
Arguments:
Returns:
1 - The ip_forwarding is eanbled
0 - The ip_forwarding is not eanbled
Globals:
Error:
none
Example:
if(xCAT::NetworkUtils->ip_forwarding_enabled())
Comments:
none
=cut
#-------------------------------------------------------------------------------
sub ip_forwarding_enabled
{
my $enabled;
if (xCAT::Utils->isLinux())
{
$enabled = `sysctl -n net.ipv4.ip_forward`;
chomp($enabled);
}
else
{
$enabled = `no -o ipforwarding`;
chomp($enabled);
$enabled =~ s/ipforwarding\s+=\s+//;
}
return $enabled;
}
1;

11
xCAT-server/lib/perl/xCAT/Postage.pm
View File

@@ -877,6 +877,17 @@ sub net_parms
my $net = $_->{'net'};
my $mask = $_->{'mask'};
my $gw = $_->{'gateway'};
if($gw eq '<myself>')
{
if(xCAT::NetworkUtils->ip_forwarding_enabled())
{
$gw = xCAT::NetworkUtils->my_ip_in_subnet($net, $mask);
}
else
{
$gw = '';
}
}
if (xCAT::NetworkUtils->ishostinsubnet($ip, $mask, $net))
{
return ($ip, $mask, $gw);

16
xCAT-server/lib/xcat/plugins/aixinstall.pm
View File

@@ -443,6 +443,22 @@ sub process_request
my $nimhash = $flatreq->{'nimhash'};
my $nodes = $flatreq->{node};
my $ip_forwarding_enabled = xCAT::NetworkUtils->ip_forwarding_enabled();
foreach my $fnode (keys %{$nethash})
{
if($nethash->{$fnode}->{'myselfgw'} eq '1')
{
if ($ip_forwarding_enabled)
{
$nethash->{$fnode}->{'gateway'} = xCAT::NetworkUtils->my_ip_in_subnet($nethash->{$fnode}->{'net'}, $nethash->{$fnode}->{'mask'});
}
else
{
$nethash->{$fnode}->{'gateway'} = '';
}
}
}
# figure out which cmd and call the subroutine to process
if ($command eq "mkdsklsnode")
{

23
xCAT-server/lib/xcat/plugins/dhcp.pm
View File

@@ -1532,6 +1532,18 @@ sub addnet
if ($ent and $ent->{gateway})
{
$gateway = $ent->{gateway};
if ($gateway eq '<myself>')
{
if(xCAT::NetworkUtils->ip_forwarding_enabled())
{
$gateway = $myip;
}
else
{
$gateway = '';
}
}
}
if ($ent and $ent->{dynamicrange})
{
@@ -1707,6 +1719,17 @@ sub gen_aix_net
my @netent = ( "network $net $mask\n{\n");
if ( $gateway)
{
if ($gateway eq '<myself>')
{
if(xCAT::NetworkUtils->ip_forwarding_enabled())
{
$gateway = $myip;
}
else
{
$gateway = '';
}
}
if (xCAT::Utils::isInSameSubnet($gateway,$net,$mask,1))
{
push @netent, " option 3 $gateway\n";

26
xCAT-server/lib/xcat/plugins/networks.pm
View File

@@ -276,7 +276,22 @@ sub donets
}
$ipaddr = $fields[1];
$netmask = $fields[2];
$gateway = $fields[6];
if ($fields[6])
{
if(xCAT::Utils::isInSameSubnet($fields[6], $ipaddr, $netmask, 0))
{
$gateway = $fields[6];
}
}
# set gateway to keyword <myself>,
# to indicate to use the cluster-facing ip address
# on this management node or service node
if (!$gateway)
{
$gateway = "<myself>";
}
# split interface IP
my ($ip1, $ip2, $ip3, $ip4) = split('\.', $ipaddr);
@@ -460,11 +475,12 @@ sub donets
$net = $ent[0];
$mask = $ent[2];
$mgtifname = $ent[7];
if (defined($netgw{$net}{$mask}))
if (defined($netgw{'0.0.0.0'}{'0.0.0.0'}))
{
$gw = $netgw{$net}{$mask}; #gateway for this network
} else {
$gw = $netgw{'0.0.0.0'}{'0.0.0.0'}; #default gatetway
if(xCAT::NetworkUtils->ishostinsubnet($netgw{'0.0.0.0'}{'0.0.0.0'}, $mask, $net))
{
$gw = $netgw{'0.0.0.0'}{'0.0.0.0'}; #default gatetway
}
}
# use convention for netname attr