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#!perl
#
# BEGIN COPYRIGHT BLOCK
# Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
# Copyright (C) 2005 Red Hat, Inc.
# All rights reserved.
# END COPYRIGHT BLOCK
#
# makemccvlvindexes
sub usage_and_exit
{
print "makemccvlvindexes usage\n";
print "\n";
print "This script analyses an LDAP directory in order to create VLV indices which\n";
print "could be configured to improve the performance of one-level searches.\n";
print "This is principally to be used to tune the directory browsing feature\n";
print "of the Mission Control Console.\n";
print "\n";
print "An LDAP client can only take advantage of these indices if it is itself\n";
print "VLV enabled. See the following specification for full details.\n";
print "\n";
print "ftp://ftp.ietf.org/internet-drafts/draft-ietf-ldapext-ldapv3-vlv-00.txt\n";
print "\n";
print "Command Line Arguments\n";
print "-? - help\n";
print "-D rootdn - Provide a root DN. Default= '$rootdn'\n";
print "-w password - Provide a password for the root DN.\n";
print "-h host - Provide a host name. Default= '$host'\n";
print "-p port - Provide a port. Default= '$port'\n";
print "-t threshold - Provide a container subordinate threshold. Default= $threshold\n";
print "-f filter - Provide a search filter. Default= '$vlvfilter'\n";
print "-s sort - Provide a sort specification. Default='$vlvsort'\n";
print "-n - Do the work, but don't create the indices\n";
exit;
}
# Initialise some things
$vlvfilter= "(objectclass=*)";
$vlvsort= "sn givenname cn ou o";
$rootdn= "cn= Directory Manager";
$host= "localhost";
$port= "389";
$threshold= 1000;
$really_do_it= "1";
# Process the command line arguments
while( $arg = shift)
{
if($arg eq "-?")
{
usage_and_exit();
}
elsif($arg eq "-D")
{
$rootdn= shift @ARGV;
}
elsif($arg eq "-w")
{
$rootpw= shift @ARGV;
}
elsif($arg eq "-h")
{
$host= shift @ARGV;
}
elsif($arg eq "-p")
{
$port= shift @ARGV;
}
elsif($arg eq "-t")
{
$threshold= shift @ARGV;
}
elsif($arg eq "-f")
{
$vlvfilter= shift @ARGV;
}
elsif($arg eq "-s")
{
$vlvsort= shift @ARGV;
}
elsif($arg eq "-n")
{
$really_do_it= "0";
}
else
{
print "$arg: Unknown command line argument.\n";
}
}
$ldapsearch= "ldapsearch -h $host -p $port";
$ldapmodify= "ldapmodify -h $host -p $port -D \"$rootdn\" -w $rootpw";
if( $vlvfilter eq "" ||
$vlvsort eq "" ||
$rootdn eq "" ||
$host eq "" ||
$port eq "" ||
$threshold eq "")
{
print "Error: Need command line information..\n";
usage_and_exit();
}
if( $rootpw eq "" )
{
print "Warning: No root DN password provided. Won't be able to add VLV Search and Index entries.\n";
}
# Tell the user what we're up to.
print "Searching all naming contexts on '$host:$port' for containers with more than $threshold subordinate entries\n";
# Read the naming contexts from the root dse
@namingcontexts= `$ldapsearch -s base -b \"\" \"objectclass=*\" namingcontexts`;
# Get rid of the first line 'dn:'
shift @namingcontexts;
# Foreach naming context...
foreach $nc (@namingcontexts)
{
# Extract the base from the naming context
@base= split ' ', $nc;
shift @base;
# Find all the containers
print "Searching naming context '@base' for containers.\n";
@containers= `$ldapsearch -s subtree -b \"@base\" \"numsubordinates=*\" numsubordinates`;
chop @containers;
# Foreach container
while(@containers)
{
# <dn, count, blank>
$dn_line= shift @containers;
$count_line= shift @containers;
shift @containers;
# Extract the count, and check it against the threshold
@count_array= split ' ', $count_line;
$count= @count_array[1];
$dn= substr($dn_line,4);
print "Found container '$dn' with $count subordinates. ";
if($count > $threshold)
{
# We've found a container that should be indexed.
# Extract the DN and RDN of the container
$comma_position= (index $dn, ',');
if($comma_position== -1)
{
$rdn= $dn
}
else
{
$rdn= substr($dn, 0, $comma_position);
}
# Tell the user what we're up to.
print "Adding VLV Search and Index entries.\n";
# Build the vlv search and index entries to be added.
$vlvsearch_name= "MCC $rdn";
@vlvsearch= (
"dn: cn=$vlvsearch_name, cn=config, cn=ldbm\n",
"objectclass: top\n",
"objectclass: vlvSearch\n",
"cn: $vlvsearch_name\n",
"vlvbase: $dn\n",
"vlvfilter: $vlvfilter\n",
"vlvscope: 1\n\n" );
$vlvindex_name= "SN $vlvsearch_name";
@vlvindex= (
"dn: cn=$vlvindex_name, cn=$vlvsearch_name, cn=config, cn=ldbm\n",
"objectclass: top\n",
"objectclass: vlvIndex\n",
"cn: $vlvindex_name\n",
"vlvsort: $vlvsort\n\n" );
@vlvnames = ( @vlvnames, "\"" . $vlvindex_name . "\"");
if($really_do_it eq "1")
{
open(FD,"| $ldapmodify -a -c");
print FD @vlvsearch;
print FD @vlvindex;
close(FD);
}
}
else
{
print "Too small.\n";
}
}
}
# Dump a script to actually create the indexes
if($really_do_it eq "1" && $#vlvnames > 0)
{
print "\n";
print "$#vlvnames VLV indices have been declared. Execute the following commands to build the index files.\n";
print "\n";
print "<instance-dir>\\stop\n";
print "slapd db2index -f <instance-dir>\\config\\slapd.conf -V @vlvnames\n";
print "<instance-dir>\\start\n";
}
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