xcat-core/xCAT-server/lib/xcat/plugins/bind.pm
lissav 472bf007d6 fix all die statements
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@2329 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
2008-10-13 14:42:44 +00:00

1536 lines
41 KiB
Perl
Executable File

#!/usr/bin/perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
#This is ported forward from xCAT 1.3
#TODO: A lot of stuff was handled by the script portion of makedns, notably:
# db.cache
# forwarders
# chroot
# dnsallowq
# mucking with sysconfig
package xCAT_plugin::bind;
use strict;
no strict "refs"; #This code is as yet still very broken...
#use warnings;
use Sys::Hostname;
use Cwd;
use Getopt::Long;
use xCAT::Table;
use xCAT::MsgUtils;
use Data::Dumper;
sub handled_commands
{
return {"makedns" => "bind"};
}
#NAME
#
# h2n - Translate host table to name server file format
# $Date: 1999/08/08 17:17:56 $ $Revision: 8.2 $
#
#SYNOPSIS
#
# h2n -d DOMAIN -n NET [options]
# Various defaults
my $Host;
my $doaliases = 1;
my $domx = 1;
my $dowks = 0;
my $dotxt = 0;
my $dontdodomains = 0;
my $Bootfile = "/etc/named.conf";
my $DBDir = "/var/named/";
my $Domain = "";
my $Hostfile = "/etc/hosts";
my $Commentfile = "";
my $Commentfileread = 0;
my $User = "root";
my $RespHost = "";
my $RespUser = "";
my $DefSerial = 1;
my $DefRefresh = 10800;
my $DefRetry = 3600;
my $DefExpire = 604800;
my $DefTtl = 86400;
my $UseDefSOAValues = 0;
my $DefMxWeight = 10;
my $Defsubnetmask = "";
my $ForceSerial = -1;
my $UseDateInSerial = 1;
my $DateSerial = 0;
my $Version = 8;
my $request;
my $callback;
my @forwarders;
#Declarations to alleviate use strict, since the code doesn't seem to be structured well enough to avoid it for these cases
my $Bootsecsaveaddr;
my $Bootsecaddr;
my @Networks;
my @bootmsgs_v4;
my @bootmsgs_v8;
my @elimpats;
my @cpats;
my @makesoa;
my $Domainfile;
my %cpatrel;
my @Servers;
my $Serial;
my $Refresh;
my @Mx;
my $Expire;
my %Hosts;
my %Comments;
my $Domainpattern;
my @Netpatterns;
my $Ttl;
my $Retry;
my %Cnames;
my %CommentRRs;
my $soa_warned;
my %Aliases;
my %Netfiles;
sub process_request
{
$request = shift;
$callback = shift;
%Netfiles = ();
%Aliases = ();
$soa_warned = 0;
my $canonical;
my $aliases;
%Comments = ();
%CommentRRs = ();
%Cnames = ();
%Hosts = ();
@Netpatterns = ();
$DBDir = "/var/named/";
unless (-d $DBDir)
{
$DBDir = "/var/lib/named/";
}
# if both do not exist, make /var/named
unless (-d $DBDir)
{
$DBDir = "/var/named/";
my $cmd = "/bin/mkdir $DBDir";
my $outref = xCAT::Utils->runcmd("$cmd", 0);
if ($::RUNCMD_RC != 0)
{
my $rsp = {};
$rsp->{data}->[0] = "Could not create $DBDir.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
}
$Host = hostname;
$Host =~ s/\..*//;
my $sitetab = xCAT::Table->new('site');
unless ($sitetab)
{
my $rsp = {};
$rsp->{data}->[0] = "No site table found.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
return;
}
my @args = ();
if ($request->{arg})
{
@args = @{$request->{arg}};
@ARGV = @{$request->{arg}};
}
&checkusageandversion($callback);
(my $fent) = $sitetab->getAttribs({key => 'forwarders'}, 'value');
if ($fent and defined $fent->{value})
{
@forwarders = split /[,:;]/, $fent->{value};
}
unless (grep /^-d$/, @args)
{
(my $dent) = $sitetab->getAttribs({key => 'domain'}, 'value');
if ($dent and $dent->{value})
{
push @args, "-d";
$dent->{value} =~ s/\.$//;
push @args, $dent->{value};
}
}
unless (grep /^-s$/, @args)
{
push @args, "-s";
push @args, $Host;
}
unless (grep /^-n$/, @args)
{
my $nettab = xCAT::Table->new('networks');
unless ($nettab)
{
my $rsp = {};
$rsp->{data}->[0] =
"Unable to open networks table, has makenetworks been run?.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
return;
}
foreach (@{$nettab->getAllEntries()})
{
push @args, "-n";
push @args, $_->{net} . ":" . $_->{mask};
}
}
push(@bootmsgs_v4, "primary\t0.0.127.IN-ADDR.ARPA db.127.0.0\n");
push(@bootmsgs_v8,
qq|zone "0.0.127.IN-ADDR.ARPA" in {\n\ttype master;\n\tfile "db.127.0.0";\n\tnotify no;\n};\n\n|
);
&PARSEARGS($callback, @args);
&FIXUP($callback);
unless (open(HOSTS, $Hostfile))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open $Hostfile\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
my $data;
my $comment;
my $addr;
my $names;
LINE: while (<HOSTS>)
{
next if /^[ \t]*#/; # skip comment lines
next if /^$/; # skip empty lines
chop; # remove the trailing newline
tr/A-Z/a-z/; # translate to lower case
($data, $comment) = split('#', $_, 2);
($addr, $names) = split(/[ ]+/, $data, 2);
if ($names =~ /^[ \t]*$/)
{
#$callback->({data=>["Bad line in hosts file ignored '$_'"]});
next LINE;
}
$addr =~ s/^[ ]*//;
$addr =~ s/[ ]*$//;
if ($addr !~ /^\d+\.\d+\.\d+\.\d+$/)
{
my $rsp = {};
$rsp->{data}->[0] = "Ignoring $addr (not a valid IPv4 address).\n";
xCAT::MsgUtils->message("I", $rsp, $callback);
next LINE;
}
# Match -e args
my $netpat;
foreach $netpat (@elimpats)
{
next LINE if (/[.\s]$netpat/);
}
# Process -c args
foreach $netpat (@cpats)
{
if (/\.$netpat/)
{
($canonical, $aliases) = split(' ', $names, 2);
$canonical =~ s/\.$netpat//;
if ($Cnames{$canonical} != 1)
{
printf DOMAIN "%-20s IN CNAME %s.%s.\n", $canonical,
$canonical, $cpatrel{$netpat};
$Cnames{$canonical} = 1;
}
next LINE;
}
}
# Check that the address is in the address list.
my $match = 'none';
foreach $netpat (@Netpatterns)
{
$match = $netpat, last
if ($addr =~ /^$netpat\./ or $addr =~ /^$netpat$/);
}
next if ($match eq 'none');
($canonical, $aliases) = split(' ', $names, 2); # separate out aliases
next if ($dontdodomains && $canonical =~ /\./); # skip domain names
$canonical =~ s/$Domainpattern//; # strip off domain if there is one
$Hosts{$canonical} .= $addr . " "; # index addresses by canonical name
$Aliases{$addr} .= $aliases . " "; # index aliases by address
$Comments{"$canonical-$addr"} = $comment;
# Print PTR records
my $file = $Netfiles{$match};
printf $file "%-30s\tIN PTR %s.%s.\n", &REVERSE($addr), $canonical,
$Domain;
}
#
# Go through the list of canonical names.
# If there is more than 1 address associated with the
# name, it is a multi-homed host. For each address
# look up the aliases since the aliases are associated
# with the address, not the canonical name.
#
foreach $canonical (keys %Hosts)
{
my @addrs = split(' ', $Hosts{$canonical});
my $numaddrs = $#addrs + 1;
foreach my $addr (@addrs)
{
#
# Print address record for canonical name.
#
if ($Cnames{$canonical} != 1)
{
printf DOMAIN "%-20s IN A %s\n", $canonical, $addr;
}
else
{
my $rsp = {};
$rsp->{data}->[0] =
"$canonical - cannot create A record because CNAME exists for name.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
}
#
# Print cname or address records for each alias.
# If this is a multi-homed host, print an address
# record for each alias. If this is a single address
# host, print a cname record.
#
my $alias;
if ($doaliases)
{
my @aliases = split(' ', $Aliases{$addr});
foreach $alias (@aliases)
{
#
# Skip over the alias if the alias and canonical
# name only differ in that one of them has the
# domain appended to it.
#
next
if ($dontdodomains && $alias =~ /\./); # skip domain names
$alias =~ s/$Domainpattern//;
if ($alias eq $canonical)
{
next;
}
my $aliasforallnames = 0;
if ($numaddrs > 1)
{
#
# If alias exists for *all* addresses of this host, we
# can use a CNAME instead of an address record.
#
my $aliasforallnames = 1;
my $xalias = $alias . " "; # every alias ends with blank
my @xaddrs = split(' ', $Hosts{$canonical});
foreach my $xaddr (@xaddrs)
{
if (!($Aliases{$xaddr} =~ /\b$xalias/))
{
$aliasforallnames = 0;
}
}
}
if (($numaddrs > 1) && !$aliasforallnames)
{
printf DOMAIN "%-20s IN A %s\n", $alias, $addr;
}
else
{
#
# Flag aliases that have already been used
# in CNAME records or have A records.
#
if (($Cnames{$alias} != 1) && (!$Hosts{$alias}))
{
printf DOMAIN "%-20s IN CNAME %s.%s.\n", $alias,
$canonical, $Domain;
$Cnames{$alias} = 1;
}
else
{
my $rsp = {};
$rsp->{data}->[0] =
"$alias - CNAME or A exists already. alias ignored.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
}
}
if ($aliasforallnames)
{
#
# Since a CNAME record was created, remove this
# name from the alias list so we don't encounter
# it again for the next address of this host.
#
my $xalias = $alias . " "; # every alias ends with blank
my @xaddrs = split(' ', $Hosts{$canonical});
my $xaddr;
foreach $xaddr (@xaddrs)
{
$Aliases{$xaddr} =~ s/\b$xalias//;
}
}
}
}
}
if ($domx)
{
&MX($callback, $canonical, @addrs);
}
if ($dotxt)
{
&TXT($canonical, @addrs);
}
if ($Commentfile ne "")
{
&DO_COMMENTS($callback, $canonical, @addrs);
}
}
# Deal with spcl's
if (-r "spcl.$Domainfile")
{
print DOMAIN "\$INCLUDE spcl.$Domainfile\n";
}
my $file;
my $n;
foreach $n (@Networks)
{
if (-r "spcl.$n")
{
$file = "DB.$n";
print $file "\$INCLUDE spcl.$n\n";
}
}
# generate boot.* files
&GEN_BOOT($callback);
my $rsp = {};
$rsp->{data}->[0] = "Setup of DNS complete.";
xCAT::MsgUtils->message("I", $rsp, $callback);
exit 0;
}
#
# Generate resource record data for
# strings from the commment field that
# are found in the comment file (-C).
#
sub DO_COMMENTS
{
my ($callback, $canonical, @addrs) = @_;
my (@c, $c, $a, $comments);
if (!$Commentfileread)
{
unless (open(F, $Commentfile))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open file $Commentfile: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
$Commentfileread++;
while (<F>)
{
chop;
my ($key, $c) = split(':', $_, 2);
$CommentRRs{$key} = $c;
}
close(F);
}
my $key;
foreach $a (@addrs)
{
$key = "$canonical-$a";
$comments .= " $Comments{$key}";
}
@c = split(' ', $comments);
foreach $c (@c)
{
if ($CommentRRs{$c})
{
printf DOMAIN "%-20s %s\n", $canonical, $CommentRRs{$c};
}
}
}
#
# Generate MX record data
#
sub MX
{
my ($callback, $canonical, @addrs) = @_;
my ($first, $a, $key, $comments);
if ($Cnames{$canonical})
{
my $rsp = {};
$rsp->{data}->[0] =
"$canonical - cannot create MX record because CNAME exists for name.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
return;
}
$first = 1;
foreach $a (@addrs)
{
$key = "$canonical-$a";
$comments .= " $Comments{$key}";
}
if ($comments !~ /\[no smtp\]/)
{
# Add WKS if requested
if ($dowks)
{
foreach $a (@addrs)
{
printf DOMAIN "%-20s IN WKS %s TCP SMTP\n", $canonical, $a;
}
}
printf DOMAIN "%-20s IN MX %s %s.%s.\n", $canonical, $DefMxWeight,
$canonical, $Domain;
$first = 0;
}
if ($#Mx >= 0)
{
foreach $a (@Mx)
{
if ($first)
{
printf DOMAIN "%-20s IN MX %s\n", $canonical, $a;
$first = 0;
}
else
{
printf DOMAIN "%-20s IN MX %s\n", "", $a;
}
}
}
}
#
# Generate TXT record data
#
sub TXT
{
my ($canonical, @addrs) = @_;
my ($a, $key, $comments);
foreach $a (@addrs)
{
$key = "$canonical-$a";
$comments .= " $Comments{$key}";
}
$comments =~ s/\[no smtp\]//g;
$comments =~ s/^\s*//;
$comments =~ s/\s*$//;
if ($comments ne "")
{
printf DOMAIN "%s IN TXT \"%s\"\n", $canonical, $comments;
}
}
#
# Create the SOA record at the beginning of the file
#
sub MAKE_SOA
{
my ($callback, $fname, $file) = @_;
my ($s);
if (-s $fname)
{
unless (open($file, "$fname"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open $fname: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
$_ = <$file>;
chop;
if (/\($/)
{
my $junk;
if (!$soa_warned)
{
my $rsp = {};
$rsp->{data}->[0] = "Converting SOA format to new style.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
$soa_warned++;
}
if ($ForceSerial > 0)
{
$Serial = $ForceSerial;
}
else
{
($Serial, $junk) = split(' ', <$file>, 2);
$Serial++;
if ($UseDateInSerial && ($DateSerial > $Serial))
{
$Serial = $DateSerial;
}
}
($Refresh, $junk) = split(' ', <$file>, 2);
($Retry, $junk) = split(' ', <$file>, 2);
($Expire, $junk) = split(' ', <$file>, 2);
($Ttl, $junk) = split(' ', <$file>, 2);
}
else
{
if (/TTL/)
{
$_ = <$file>;
}
split(' ');
if ($#_ == 11)
{
if ($ForceSerial > 0)
{
$Serial = $ForceSerial;
}
else
{
$Serial = ++$_[6];
if ($UseDateInSerial && ($DateSerial > $Serial))
{
$Serial = $DateSerial;
}
}
$Refresh = $_[7];
$Retry = $_[8];
$Expire = $_[9];
$Ttl = $_[10];
}
else
{
my $rsp = {};
$rsp->{data}->[0] = "Improper format SOA in $fname.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
}
if ($UseDefSOAValues)
{
$Refresh = $DefRefresh;
$Retry = $DefRetry;
$Expire = $DefExpire;
$Ttl = $DefTtl;
}
close($file);
}
else
{
if ($ForceSerial > 0)
{
$Serial = $ForceSerial;
}
else
{
$Serial = $DefSerial;
if ($UseDateInSerial && ($DateSerial > $Serial))
{
$Serial = $DateSerial;
}
}
$Refresh = $DefRefresh;
$Retry = $DefRetry;
$Expire = $DefExpire;
$Ttl = $DefTtl;
close($file);
}
unless (open($file, "> $fname"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open $fname: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
print $file '$TTL 86400' . "\n";
print $file "\@ IN SOA $RespHost $RespUser ";
print $file "( $Serial $Refresh $Retry $Expire $Ttl )\n";
foreach $s (@Servers)
{
print $file " IN NS $s\n";
}
print $file "\n";
}
#
# Reverse the octets of an IP address and append
# in-addr.arpa.
#
sub REVERSE
{
join('.', reverse(split('\.', $_[0]))) . '.IN-ADDR.ARPA.';
}
#
# Establish what we will be using for SOA records
#
sub FIXUP
{
my $callback = shift;
my ($s);
if ($Host =~ /\./)
{
$RespHost = "$Host.";
}
else
{
$RespHost = "$Host.$Domain.";
}
$RespHost =~ s/\.\././g;
if ($User =~ /@/)
{ # -u user@...
if ($User =~ /\./)
{
$RespUser = "$User."; # -u user@terminator.movie.edu
}
else
{
$RespUser = "$User.$Domain."; # -u user@terminator
}
$RespUser =~ s/@/./;
}
elsif ($User =~ /\./)
{
$RespUser = "$User."; # -u user.terminator.movie.edu
}
else
{
$RespUser = "$User.$RespHost"; # -u user
}
$RespUser =~ s/\.\././g; # Strip any ".."'s to "."
# Clean up nameservers
if (!@Servers)
{
my $rsp = {};
$rsp->{data}->[0] =
"No -s option specified. Assuming \"-s $Host.$Domain\".\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
push(@Servers, "$Host.$Domain.");
}
else
{
foreach $s (@Servers)
{
if ($s !~ /\./)
{
$s .= ".$Domain";
}
if ($s !~ /\.$/)
{
$s .= ".";
}
}
}
# Clean up MX hosts
foreach $s (@Mx)
{
$s =~ s/:/ /;
if ($s !~ /\./)
{
$s .= ".$Domain";
}
if ($s !~ /\.$/)
{
$s .= ".";
}
}
# Now open boot file (named.conf) and print saved data
unless (open(BOOT, "> $Bootfile"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open $Bootfile.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
#
# Write either the version 4 boot file directives or the
# version 8 boot file directives.
#
if ($Version == 4)
{
print BOOT "\ndirectory $DBDir\n";
foreach my $line (@bootmsgs_v4)
{
print BOOT $line;
}
print BOOT "cache\t. db.cache\n";
if (-r "spcl.boot")
{
print BOOT "include\tspcl.boot\n";
}
}
else
{
print BOOT qq|\noptions {\n\tdirectory "$DBDir";\n|;
if (@forwarders)
{
print BOOT qq|\tforwarders {\n|;
foreach (@forwarders)
{
print BOOT qq|\t\t$_;\n|;
}
print BOOT qq|\t};\n|;
}
if (-r "spcl.options")
{
print BOOT "\t# These options came from the file spcl.options\n";
#
# Copy the options in since "include" cannot be used
# within a statement.
#
unless (open(OPTIONS, "<spcl.options"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open spcl.options.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
while (<OPTIONS>)
{
print BOOT;
}
close(OPTIONS);
}
print BOOT qq|};\n\n|;
foreach my $line (@bootmsgs_v8)
{
print BOOT $line;
}
unless (@forwarders)
{
print BOOT
qq|zone "." in {\n\ttype hint;\n\tfile "db.cache";\n};\n\n|;
}
if (-r "spcl.boot")
{
print BOOT qq|include "spcl.boot";\n\n|;
}
}
# Go ahead and start creating files and making SOA's
my $x1;
my $x2;
foreach my $i (@makesoa)
{
($x1, $x2) = split(' ', $i);
&MAKE_SOA($callback, $x1, $x2);
}
printf DOMAIN "%-20s IN A 127.0.0.1\n", "localhost";
my $file = "DB.127.0.0.1";
&MAKE_SOA($callback, $DBDir . "db.127.0.0", $file);
my $nothing;
open($nothing, ">>", $DBDir . "db.cache");
close($nothing);
printf $file "%-30s\tIN PTR localhost.\n", &REVERSE("127.0.0.1");
close($file);
}
sub PARSEARGS
{
my ($callback, @args) = @_;
my ($i, $net, $subnetmask, $option, $tmp1);
my ($file, @newargs, @targs);
my ($sec, $min, $hour, $mday, $mon, $year, $rest);
($sec, $min, $hour, $mday, $mon, $year, $rest) = localtime(time);
$DateSerial =
($mday * 100) + (($mon + 1) * 10000) + (($year + 1900) * 1000000);
$i = 0;
while ($i <= $#args)
{
$option = $args[$i];
if ($option eq "-d")
{
if ($Domain ne "")
{
my $rsp = {};
$rsp->{data}->[0] = "Only one -d option allowed.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
$Domain = $args[++$i];
$Domainpattern = "." . $Domain;
$Domainpattern =~ s/\./\\./g; # for stripping off domain
# Add entry to the boot file.
$Domainfile = $Domain;
$Domainfile =~ s/\..*//;
push(@makesoa, $DBDir . "db.$Domainfile DOMAIN");
push(@bootmsgs_v4, "primary\t$Domain db.$Domainfile\n");
push(@bootmsgs_v8,
qq|zone "$Domain" in {\n\ttype master;\n\tfile "db.$Domainfile";\n};\n\n|
);
}
elsif ($option eq "-f")
{
$file = $args[++$i];
unless (open(F, $file))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open args file $file: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
while (<F>)
{
next if (/^#/);
next if (/^$/);
chop;
@targs = split(' ');
push(@newargs, @targs);
}
close(F);
&PARSEARGS($callback, @newargs);
}
elsif ($option eq "-z")
{
$Bootsecsaveaddr = $args[++$i];
if (!defined($Bootsecaddr))
{
$Bootsecaddr = $Bootsecsaveaddr;
}
}
elsif ($option eq "-Z")
{
$Bootsecaddr = $args[++$i];
if (!defined($Bootsecsaveaddr))
{
$Bootsecsaveaddr = $Bootsecaddr;
}
}
elsif ($option eq "-b")
{
$Bootfile = $args[++$i];
}
elsif ($option eq "-A")
{
$doaliases = 0;
}
elsif ($option eq "-M")
{
$domx = 0;
}
elsif ($option eq "-w")
{
$dowks = 1;
}
elsif ($option eq "-D")
{
$dontdodomains = 1;
}
elsif ($option eq "-t")
{
$dotxt = 1;
}
elsif ($option eq "-u")
{
$User = $args[++$i];
}
elsif ($option eq "-s")
{
while ($args[++$i] !~ /^-/ && $i <= $#args)
{
push(@Servers, $args[$i]);
}
$i--;
}
elsif ($option eq "-m")
{
if ($args[++$i] !~ /:/)
{
my $rsp = {};
$rsp->{data}->[0] =
"Improper format for -m option ignored ($args[$i]).\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
}
push(@Mx, $args[$i]);
}
elsif ($option eq "-c")
{
my $tmp1 = $args[++$i];
if ($tmp1 !~ /\./)
{
$tmp1 .= ".$Domain";
}
if ($Domain eq $tmp1)
{
my $rsp = {};
$rsp->{data}->[0] =
"Domain for -c option must not match domain for -d option.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
my $tmp2 = $tmp1;
$tmp2 =~ s/\./\\./g;
$cpatrel{$tmp2} = $tmp1;
push(@cpats, $tmp2);
}
elsif ($option eq "-e")
{
$tmp1 = $args[++$i];
if ($tmp1 !~ /\./)
{
$tmp1 .= ".$Domain";
}
$tmp1 =~ s/\./\\./g;
push(@elimpats, $tmp1);
}
elsif ($option eq "-h")
{
$Host = $args[++$i];
}
elsif ($option eq "-o")
{
if ($args[++$i] !~ /^[:\d]*$/
|| split(':', $args[$i]) != 4)
{
my $rsp = {};
$rsp->{data}->[0] = "Improper format for -o ($args[$i]).\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
($DefRefresh, $DefRetry, $DefExpire, $DefTtl) =
split(':', $args[$i]);
$UseDefSOAValues = 1;
}
elsif ($option eq "-i")
{
$ForceSerial = $args[++$i];
}
elsif ($option eq "-H")
{
$Hostfile = $args[++$i];
if (!-r $Hostfile || -z $Hostfile)
{
my $rsp = {};
$rsp->{data}->[0] =
"Invalid file specified for -H ($Hostfile).\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
}
elsif ($option eq "-C")
{
$Commentfile = $args[++$i];
if (!-r $Commentfile || -z $Commentfile)
{
my $rsp = {};
$rsp->{data}->[0] =
"Invalid file specified for -C ($Commentfile).\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
}
elsif ($option eq "-N")
{
$Defsubnetmask = $args[++$i];
if ($Defsubnetmask !~ /^[.\d]*$/
|| split('\.', $Defsubnetmask) != 4)
{
my $rsp = {};
$rsp->{data}->[0] = "Improper subnet mask ($Defsubnetmask).\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
if ($#Networks >= 0)
{
my $rsp = {};
$rsp->{data}->[0] =
"-N option should be specified before any -n options.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
}
}
elsif ($option eq "-n")
{
(my $tnet, $subnetmask) = split(':', $args[++$i]);
$net = "";
my @netm = split(/\./, $subnetmask);
my @tnets = split(/\./, $tnet);
foreach (0 .. 3)
{
my $res = ($tnets[$_] + 0) & ($netm[$_] + 0);
if ($netm[$_])
{
$net .= $res . '.';
}
}
$net =~ s/\.$//;
if (not $net)
{
my $rsp = {};
$rsp->{data}->[0] =
"Empty network found in networks table (i.e. ,,),This is almost certainly going to cause a problem....\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
}
if ($subnetmask eq "")
{
my $rsp = {};
$rsp->{data}->[0] =
"$net has no defined netmask in the networks table, the result will probably be wrong.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
foreach $tmp1 (&SUBNETS($net, $Defsubnetmask))
{
&BUILDNET($tmp1);
}
}
else
{
if ($subnetmask !~ /^[.\d]*$/
|| split('\.', $subnetmask) != 4)
{
my $rsp = {};
$rsp->{data}->[0] = "Improper subnet mask ($subnetmask).\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
foreach $tmp1 (&SUBNETS($net, $subnetmask))
{
&BUILDNET($tmp1);
}
}
}
else
{
if ($option =~ /^-.*/)
{
my $rsp = {};
$rsp->{data}->[0] = "Unknown option: $option ... ignored.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
}
}
$i++;
}
if (!@Networks || $Domain eq "")
{
my $rsp = {};
$rsp->{data}->[0] = "Must specify one -d and at least one -n.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit(1);
}
}
sub BUILDNET
{
my ($net) = @_;
push(@Networks, $net);
#
# Create pattern to match against.
# The dots must be changed to \. so they
# aren't used as wildcards.
#
my $netpat = $net;
$netpat =~ s/\./\\./g;
push(@Netpatterns, $netpat);
#
# Create db files for PTR records.
# Save the file names in an array for future use.
#
my $netfile = "DB.$net";
$Netfiles{$netpat} = $netfile;
push(@makesoa, $DBDir . "db.$net $netfile");
# Add entry to the boot file.
my $revaddr = &REVERSE($net);
chop($revaddr); # remove trailing dot
push(@bootmsgs_v4, "primary $revaddr db.$net\n");
push(@bootmsgs_v8,
qq|zone "$revaddr" in {\n\ttype master;\n\tfile "db.$net";\n};\n\n|);
}
#
# Calculate all the subnets from a network number and mask.
# This was originally written for awk, not perl.
#
sub SUBNETS
{
my ($network, $mask) = @_;
my (@ans, @net, @mask, $buf, $number, $i, $j, $howmany);
@net = split(/\./, $network);
@mask = split(/\./, $mask);
$number = '';
#
# Only expand bytes 1, 2, or 3
# for DNS purposes
#
for ($i = 0 ; $i < 4 ; $i++)
{
if ($mask[$i] == 255)
{
$number = $number . $net[$i] . '.';
}
elsif (($mask[$i] == 0) || $mask[$i] eq '')
{
push(@ans, $network);
last;
}
else
{
#
# This should be done as a bit-wise or
# but awk does not have an or symbol
#
$howmany = 255 - $mask[$i];
for ($j = 0 ; $j <= $howmany ; $j++)
{
if ($net[$i] + $j <= 255)
{
$buf = sprintf("%s%d", $number, $net[$i] + $j);
push(@ans, $buf);
}
}
last;
}
}
if ($#ans == -1)
{
push(@ans, $network);
}
@ans;
}
sub GEN_BOOT
{
$callback = shift;
my ($revaddr, $n);
if (0)
{ #! -e "boot.cacheonly") { DISABLE THIS PART
#
# Create a boot file for a cache-only server
#
unless (open(F, ">boot.cacheonly"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open boot.cacheonly: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
if ($Version == 4)
{
print F "directory\t$DBDir\n";
print F "primary\t\t0.0.127.IN-ADDR.ARPA db.127.0.0\n";
print F "cache\t\t. db.cache\n";
if (-r "spcl.cacheonly")
{
printf F "include\t\tspcl.cacheonly\n";
}
close(F);
}
else
{
print F qq|\noptions {\n\tdirectory "$DBDir";\n|;
if (@forwarders)
{
print F qq|\tforwarders {\n|;
foreach (@forwarders)
{
print F qq|\t\t$_;\n|;
}
print F qq|\t};\n|;
}
if (-r "spcl.options")
{
print F "\t# These options came from the file spcl.options\n";
#
# Copy the options in since "include" cannot be used
# within a statement.
#
unless (open(OPTIONS, "<spcl.options"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open boot.cacheonly: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
while (<OPTIONS>)
{
print F;
}
close(OPTIONS);
}
print F qq|};\n\n|;
print F qq|zone "0.0.127.IN-ADDR.ARPA" in {\n\ttype master;|;
print F qq|\n\tfile "db.127.0.0";|;
print F qq|\n\tnotify no;\n};\n\n|;
#print F qq|zone "." in {\n\ttype hint;\n\tfile "db.cache";\n};\n\n|;
if (-r "spcl.cacheonly")
{
print F qq|include "spcl.cacheonly";\n\n|;
}
}
}
#
# Create a 2 boot files for a secondary (slave) servers.
# One boot file doesn't save the zone data in a file. The
# other boot file does save the zone data in a file.
#
if (defined($Bootsecaddr))
{
unless (open(F, ">boot.sec"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open boot.sec: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
if ($Version == 4)
{
print F "directory\t$DBDir\n";
print F "primary\t\t0.0.127.IN-ADDR.ARPA db.127.0.0\n";
printf F "secondary\t%-23s $Bootsecaddr\n", $Domain;
foreach $n (@Networks)
{
$revaddr = &REVERSE($n);
chop($revaddr);
printf F "secondary\t%-23s $Bootsecaddr\n", $revaddr;
}
print F "cache\t\t. db.cache\n";
if (-r "spcl.boot")
{
printf F "include\t\tspcl.boot\n";
}
}
else
{
print F qq|\noptions {\n\tdirectory "$DBDir";\n|;
if (-r "spcl.options")
{
print F "\t# These options came from the file spcl.options\n";
#
# Copy the options in since "include" cannot be used
# within a statement.
#
unless (open(OPTIONS, "<spcl.options"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open spcl.options.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
while (<OPTIONS>)
{
print F;
}
close(OPTIONS);
}
print F qq|};\n\n|;
print F qq|zone "0.0.127.IN-ADDR.ARPA" in {\n\ttype master;|;
print F qq|\n\tfile "db.127.0.0";|;
print F qq|\n\tnotify no;\n};\n\n|;
print F qq|zone "$Domain" in {\n\ttype slave;\n\tmasters {|;
print F qq| $Bootsecaddr; };\n};\n\n|;
foreach $n (@Networks)
{
$revaddr = &REVERSE($n);
chop($revaddr);
print F qq|zone "$revaddr" in {\n\ttype slave;\n\tmasters {|;
print F qq| $Bootsecaddr; };\n};\n\n|;
}
#print F qq|zone "." in {\n\ttype hint;\n\tfile "db.cache";\n};\n\n|;
if (-r "spcl.boot")
{
print F qq|include "spcl.boot";\n\n|;
}
}
close(F);
unless (open(F, ">boot.sec.save"))
{
my $rsp = {};
$rsp->{data}->[0] = "Unable to open boot.sec.save: $!.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
if ($Version == 4)
{
print F "directory\t$DBDir\n";
print F "primary\t\t0.0.127.IN-ADDR.ARPA db.127.0.0\n";
printf F "secondary\t%-23s $Bootsecsaveaddr db.%s\n", $Domain,
$Domainfile;
foreach $n (@Networks)
{
$revaddr = &REVERSE($n);
chop($revaddr);
printf F "secondary\t%-23s $Bootsecsaveaddr db.%s\n", $revaddr,
$n;
}
print F "cache\t\t. db.cache\n";
if (-r "spcl.boot")
{
printf F "include\t\tspcl.boot\n";
}
}
else
{
print F qq|\noptions {\n\tdirectory "$DBDir";\n|;
if (-r "spcl.options")
{
print F "\t# These options came from the file spcl.options\n";
#
# Copy the options in since "include" cannot be used
# within a statement.
#
unless (open(OPTIONS, "<spcl.options"))
{
my $rsp = {};
$rsp->{data}->[0] = "Can't open spcl.options.\n";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
exit 1;
}
while (<OPTIONS>)
{
print F;
}
close(OPTIONS);
}
print F qq|};\n\n|;
print F qq|zone "0.0.127.IN-ADDR.ARPA" in {\n\ttype master;|;
print F qq|\n\tfile "db.127.0.0";|;
print F qq|\n\tnotify no;\n};\n\n|;
print F
qq|zone "$Domain" in {\n\ttype slave;\n\tfile "db.$Domainfile";|;
print F qq|\n\tmasters { $Bootsecsaveaddr; };\n};\n\n|;
foreach $n (@Networks)
{
$revaddr = &REVERSE($n);
chop($revaddr);
print F
qq|zone "$revaddr" in {\n\ttype slave;\n\tfile "db.$n";\n\tmasters {|;
print F qq| $Bootsecsaveaddr; };\n};\n\n|;
}
#print F qq|zone "." in {\n\ttype hint;\n\tfile "db.cache";\n};\n\n|;
if (-r "spcl.boot")
{
print F qq|include "spcl.boot";\n\n|;
}
}
close(F);
}
}
# subroutine to display the usage
sub checkusageandversion
{
my $callback = shift;
# parse the options
if (
GetOptions('h|help' => \$::HELP,
'v|version' => \$::VERSION)
)
{
if ($::HELP)
{
my $rsp = {};
$rsp->{data}->[0] = "Usage:";
$rsp->{data}->[1] = " makedns <options>";
$rsp->{data}->[2] = " makedns [-h|--help|-v|--version]";
$rsp->{data}->[3] = " <options> See man makedns";
xCAT::MsgUtils->message("I", $rsp, $callback);
exit 0;
}
if ($::VERSION)
{
my $version = xCAT::Utils->Version();
my $rsp = {};
$rsp->{data}->[0] = "$version";
xCAT::MsgUtils->message("I", $rsp, $callback);
exit 0;
}
}
return;
}
1;