/usr/lib/x86_64-linux-gnu/dirsrv/perl/DSMigration.pm is in 389-ds-base 1.3.7.10-1ubuntu1.
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# Copyright (C) 2013 Red Hat, Inc.
# All rights reserved.
#
# License: GPL (version 3 or any later version).
# See LICENSE for details.
# END COPYRIGHT BLOCK
#
###########################
#
# This perl module provides a way to set up a new installation after
# the binaries have already been extracted. This is typically after
# using native packaging support to install the package e.g. RPM,
# pkgadd, depot, etc. This script will show the license, readme,
# dsktune, then run the usual setup pre and post installers.
#
##########################
package DSMigration;
use Migration;
use DSUtil;
use Inf;
use DSCreate;
use DSUpdate;
# tempfiles
use File::Temp qw(tempfile tempdir);
use File::Basename qw(basename);
# absolute path handling
use Cwd qw(realpath);
# load perldap
use Mozilla::LDAP::Conn;
use Mozilla::LDAP::Utils qw(normalizeDN);
use Mozilla::LDAP::API qw(ldap_explode_dn);
use Mozilla::LDAP::LDIF;
use Carp;
use Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(migrateDS);
@EXPORT_OK = qw(migrateDS);
use strict;
use SetupLog;
# these are the attributes for which we will always use
# the new value, or which do not apply anymore
# for the next major release e.g. when we support migration from the
# current release 1.1.x to 1.2 or 2.0, the old version number will
# become quite important for migration - for example, when migrating
# from older than 1.1 to 1.1.x, we need to add the attributes in the
# table below to the new entry because the attribute didn't exist
# at all in the old server version - however, when migrating from
# e.g. 1.1.x to 2.0, we must preserve the old value - this means
# if the user has deleted the attribute from the entry, we must
# "migrate" that deletion by removing the attribute from the new
# entry
my %ignoreOld =
(
'nsslapd-errorlog' => 'nsslapd-errorlog',
'nsslapd-accesslog' => 'nsslapd-accesslog',
'nsslapd-auditlog' => 'nsslapd-auditlog',
'nskeyfile' => 'nsKeyfile',
'nscertfile' => 'nsCertfile',
'nsslapd-pluginpath' => 'nsslapd-pluginPath',
'nsslapd-plugintype' => 'nsslapd-pluginType',
'nsslapd-pluginversion' => 'nsslapd-pluginVersion',
'nsslapd-plugin-depends-on-named' => 'nsslapd-plugin-depends-on-named',
# these are new attrs that we should just pass through
'nsslapd-allow-unauthenticated-binds' => 'nsslapd-allow-unauthenticated-binds',
'nsslapd-allow-anonymous-access' => 'nsslapd-allow-anonymous-access',
'nsslapd-localssf' => 'nsslapd-localssf',
'nsslapd-minssf' => 'nsslapd-minssf',
'nsslapd-saslpath' => 'nsslapd-saslpath',
'nsslapd-rundir' => 'nsslapd-rundir',
'nsslapd-schemadir' => 'nsslapd-schemadir',
'nsslapd-lockdir' => 'nsslapd-lockdir',
'nsslapd-tmpdir' => 'nsslapd-tmpdir',
'nsslapd-certdir' => 'nsslapd-certdir',
'nsslapd-ldifdir' => 'nsslapd-ldifdir',
'nsslapd-bakdir' => 'nsslapd-bakdir',
'nsslapd-instancedir' => 'nsslapd-instancedir',
'nsslapd-ldapifilepath' => 'nsslapd-ldapifilepath',
'nsslapd-ldapilisten' => 'nsslapd-ldapilisten',
'nsslapd-ldapiautobind' => 'nsslapd-ldapiautobind',
'nsslapd-ldapimaprootdn' => 'nsslapd-ldapimaprootdn',
'nsslapd-ldapimaptoentries' => 'nsslapd-ldapimaptoentries',
'nsslapd-ldapiuidnumbertype' => 'nsslapd-ldapiuidnumbertype',
'nsslapd-ldapigidnumbertype' => 'nsslapd-ldapigidnumbertype',
'nsslapd-ldapientrysearchbase' => 'nsslapd-ldapientrysearchbase',
'nsslapd-ldapiautodnsuffix' => 'nsslapd-ldapiautodnsuffix',
'numsubordinates' => 'numSubordinates',
# for these, we just want to use the default values, even if they were
# set in 7.1 or later
'nsslapd-db-private-import-mem' => 'nsslapd-db-private-import-mem',
'nsslapd-import-cache-autosize' => 'nsslapd-import-cache-autosize',
# nsslapd-allidsthreshold does not exist anymore
# the analogous concept is nsslapd-idlistscanlimit for searches
'nsslapd-allidsthreshold' => 'nsslapd-allidsthreshold'
);
# these are the obsolete entries we do not migrate
my %ignoreOldEntries =
(
'cn=presence,cn=plugins,cn=config' => 'cn=presence,cn=plugins,cn=config',
'cn=aim presence,cn=presence,cn=plugins,cn=config' => 'cn=aim presence,cn=presence,cn=plugins,cn=config',
'cn=icq presence,cn=presence,cn=plugins,cn=config' => 'cn=icq presence,cn=presence,cn=plugins,cn=config',
'cn=yahoo presence,cn=presence,cn=plugins,cn=config' => 'cn=yahoo presence,cn=presence,cn=plugins,cn=config'
);
# these are the attributes for which we will always use
# the old value
my %alwaysUseOld =
(
'aci' => 'aci'
);
sub getDBVERSION {
my $olddbdir = shift;
my $data = shift;
open DBVERSION, "$olddbdir/DBVERSION" or
return ('error_reading_dbversion', $olddbdir, $!);
my $line = <DBVERSION>;
close DBVERSION;
chomp($line);
@{$data} = split("/", $line);
return ();
}
sub isOldDatabase {
my $olddbdir = shift;
my $errs = shift; # array ref
# check old DBVERSION file
my @verinfo;
if (@{$errs} = getDBVERSION($olddbdir, \@verinfo)) {
return 0;
}
if ((($verinfo[0] =~ /^netscape/i) or ($verinfo[0] =~ /^iplanet/i)) and
(($verinfo[1] =~ /^6/) or ($verinfo[1] =~ /^5/) or ($verinfo[1] =~ /^4/))) {
return 1;
}
return 0;
}
sub getNewDbDir {
my ($ent, $attr, $mig, $inst) = @_;
my $newval;
my %objclasses = map { lc($_) => $_ } $ent->getValues('objectclass');
my $cn = $ent->getValues('cn');
# there is one case where we want to just use the existing db directory
# that's the case where the user has moved the indexes and/or the
# transaction logs to different partitions for performance
# in that case, the old directory will not be the same as the default,
# and the directory will exist
# for cross platform, we should just use the new default location
if (!$mig->{crossplatform}) {
my $oldval = $ent->getValues($attr);
my $absoldval = realpath($oldval) || $oldval;
my $olddefault = "$mig->{actualsroot}/$inst";
if (-d $absoldval and ($absoldval !~ /^$olddefault/)) {
debug(2, "Keeping old value [$absoldval] for attr $attr in entry ", $ent->getDN(), "\n");
return $oldval;
}
}
# otherwise, just use the new default locations
if ("") {
if ($objclasses{nsbackendinstance}) {
$newval = "/var/$mig->{pkgname}/$inst/db/$cn";
} elsif (lc $cn eq 'config') {
$newval = "/var/$mig->{pkgname}/$inst/db";
} elsif (lc $cn eq 'changelog5') {
$newval = "/var/$mig->{pkgname}/$inst/changelogdb";
}
} else {
if ($objclasses{nsbackendinstance}) {
$newval = "/var/lib/$mig->{pkgname}/$inst/db/$cn";
} elsif (lc $cn eq 'config') {
$newval = "/var/lib/$mig->{pkgname}/$inst/db";
} elsif (lc $cn eq 'changelog5') {
$newval = "/var/lib/$mig->{pkgname}/$inst/changelogdb";
}
}
debug(2, "New value [$newval] for attr $attr in entry ", $ent->getDN(), "\n");
return $newval;
}
sub migrateCredentials {
my ($ent, $attr, $mig, $inst) = @_;
my $oldval = $ent->getValues($attr);
my $qoldval = shellEscape($oldval);
# Older versions of the server on x86 systems and other systems that do not use network byte order
# stored the credentials incorrectly. The first step is to determine if this is the case. We
# migrate using the same server root to see if we get the same output as we input.
debug(3, "In migrateCredentials - see how old credentials were encoded.\n");
my $testval = `/usr/bin/migratecred -o $mig->{actualsroot}/$inst -n $mig->{actualsroot}/$inst -c $qoldval`;
chomp($testval);
if ($testval ne $oldval) { # need to turn on the special flag
debug(3, "Credentials not encoded correctly. oldval $oldval not equal to testval $testval. The value will be re-encoded correctly.\n");
$ENV{MIGRATE_BROKEN_PWD} = "1"; # decode and re-encode correctly
}
debug(3, "Executing /usr/bin/migratecred -o $mig->{actualsroot}/$inst -n /etc/dirsrv/$inst -c $qoldval . . .\n");
my $newval = `/usr/bin/migratecred -o $mig->{actualsroot}/$inst -n /etc/dirsrv/$inst -c $qoldval`;
chomp($newval);
delete $ENV{MIGRATE_BROKEN_PWD}; # clear the flag, if set
debug(3, "Converted old value [$oldval] to new value [$newval] for attr $attr in entry ", $ent->getDN(), "\n");
return $newval;
}
sub removensState {
my ($ent, $attr, $mig, $inst) = @_;
my $newval;
# nsstate is binary and cannot be migrated cross platform
if (!$mig->{crossplatform}) {
$newval = $ent->getValues($attr);
}
return $newval;
}
sub migIdlSwitch {
my ($ent, $attr, $mig, $inst) = @_;
my $newval;
# if doing cross platform migration, just use the default value for
# nsslapd-idl-switch
# if not doing cross platform, meaning we just use the existing
# database binaries, we must preserve whatever the old value is
# unless migrating from 6.21 or earlier, in which case we must
# be migrating from LDIF, and must use the new idl switch
if (!$mig->{crossplatform}) {
# the given entry is the old entry - see if it has the nsslapd-directory
my $olddbdir = $ent->getValues('nsslapd-db-home-directory') ||
$ent->getValues('nsslapd-directory') ||
"$mig->{actualsroot}/$inst/db"; # old default db home directory
# replace the old sroot value with the actual physical location on the target/dest
$olddbdir =~ s/^$mig->{actualsroot}/$mig->{oldsroot}/;
my @errs;
my $isold = isOldDatabase($olddbdir, \@errs);
if (@errs) {
$mig->msg($FATAL, @errs);
return $newval; # use default new value
} elsif ($isold) {
debug(3, "The database in $olddbdir is too old to migrate the idl switch setting\n");
return $newval; # use default new value
}
# else the database could be in the new format already - preserve
# the user's old value
$newval = $ent->getValues($attr);
}
return $newval;
}
# these are attributes that we have to transform from
# the old value to the new value (e.g. a pathname)
# The key of this hash is the attribute name. The value
# is an anonymous sub which takes two arguments - the entry
# and the old value. The return value of the sub is
# the new value
my %transformAttr =
(
'nsslapd-directory' => \&getNewDbDir,
'nsslapd-db-logdirectory' => \&getNewDbDir,
'nsslapd-changelogdir' => \&getNewDbDir,
'nsds5replicacredentials' => \&migrateCredentials,
'nsmultiplexorcredentials' => \&migrateCredentials,
'nsstate' => \&removensState,
'nsslapd-idl-switch' => \&migIdlSwitch
);
sub copyDatabaseDirs {
my $srcdir = shift;
my $destdir = shift;
my $filesonly = shift;
my @errs;
my $isold = isOldDatabase($srcdir, \@errs);
if (@errs) {
return @errs;
} elsif ($isold) {
return ('error_database_too_old', $srcdir);
}
if (-d $srcdir && ! -d $destdir && !$filesonly) {
debug(1, "Copying database directory $srcdir to $destdir\n");
if (system ("cp -p -r $srcdir $destdir")) {
return ('error_copying_dbdir', $srcdir, $destdir, $?);
}
} elsif (! -d $srcdir) {
return ("error_dbsrcdir_not_exist", $srcdir);
} else {
debug(1, "The destination directory $destdir already exists, copying files/dirs individually\n");
$! = 0;
debug(1, "Removing any existing db files in $destdir\n");
foreach my $file (glob("$destdir/*")) {
next if (! -f $file);
unlink($file);
if ($!) {
return ("error_removing_temp_db_files", $destdir, $!);
}
}
foreach my $file (glob("$srcdir/*")) {
if (-f $file) {
debug(3, "Copying $file to $destdir\n");
if (system ("cp -p $file $destdir")) {
return ('error_copying_dbfile', $file, $destdir, $?);
}
} elsif (-d $file && !$filesonly) {
debug(3, "Copying $file to $destdir\n");
if (system ("cp -p -r $file $destdir")) {
return ('error_copying_dbdir', $file, $destdir, $?);
}
}
}
}
return ();
}
# older versions may use the old Netscape names e.g. Netscape Administration Server
# we have to convert these to the new names e.g. 389 Administration Server
sub migrateNetscapeRoot {
my $ldiffile = shift;
my ($fh, $tmpldiffile);
# create a temp inf file for writing for other processes
# never overwrite the user supplied inf file
($fh, $tmpldiffile) = tempfile("nsrootXXXXXX", UNLINK => 0,
SUFFIX => ".ldif", OPEN => 1,
DIR => File::Spec->tmpdir);
if (!open( MYLDIF, "$ldiffile" )) {
debug(1, "Error: Can't open $ldiffile: $!");
return;
}
my $in = new Mozilla::LDAP::LDIF(*MYLDIF);
while (my $ent = readOneEntry $in) {
my $dn = $ent->getDN();
next if (!$dn); # netscaperoot should not have the empty dn
$dn =~ s/\bNetscape\b/389/g;
$ent->setDN($dn);
foreach my $attr (keys %{$ent}) {
my @vals = $ent->getValues($attr);
map { s/\bNetscape\b/389/g } @vals;
$ent->setValues($attr, @vals);
}
Mozilla::LDAP::LDIF::put_LDIF($fh, 78, $ent);
}
close( MYLDIF );
close( $fh );
return $tmpldiffile;
}
sub fixIntegerIndexes {
my $mig = shift;
my $inst_dir = shift;
my $newdbdir = shift;
if (!$mig->{integerattrs}) {
debug(1, "No integer syntax attributes, no indexes fixed\n");
return ();
}
# look at each index file in the db dir
# if it is on our list of integer attributes,
# remove it and re-create it
my $dbname = basename($newdbdir);
for (glob("$newdbdir/*.db4")) {
my $indexname = basename($_, '.db4');
if ($mig->{integerattrs}->{lc $indexname}) {
$mig->msg($INFO, 'fixing_integer_attr_index', $indexname, $newdbdir);
debug(1, "Removing file $_\n");
if (! unlink $_) {
debug(1, "Error: could not remove file $_: $!\n");
return ('error_removing_index_file', $_, $!);
}
my $cmd = "$inst_dir/db2index -n \"$dbname\" -t \"$indexname\"";
debug(1, "Re-creating index file $_: $cmd\n");
$? = 0; # clear error condition
my $output = `$cmd 2>&1`;
if ($?) {
return ('error_recreating_index_file', $_, $output);
}
debug(1, $output);
} else {
debug(3, "Index $indexname is not for an integer syntax attribute - skipping\n");
}
}
return ();
}
# migrate all of the databases in an instance
sub migrateDatabases {
my $mig = shift; # the Migration object
my $inst = shift; # the instance name (e.g. slapd-instance)
my $src = shift; # a Conn to the source
my $dest = shift; # a Conn to the dest
my $olddefault = "$mig->{actualsroot}/$inst/db"; # old default db home directory
my @errs;
# the ldif2db command will be in nsslapd-instancedir
my $cfgent = $dest->search("cn=config", "base", "(objectclass=*)");
my $inst_dir = $cfgent->getValues('nsslapd-instancedir');
# first, look for an LDIF file in that directory with the same name as the
# database
my $foundldif;
for (glob("$mig->{oldsroot}/$inst/db/*.ldif")) {
my $fname = $_;
my $dbname = basename($fname, '.ldif');
my $deleteflag = 0;
if ($fname =~ /NetscapeRoot.ldif$/) {
$fname = migrateNetscapeRoot($fname);
if ($fname) {
# make sure $fname is owned by the server user
my $cfgent = $dest->search("cn=config", "base", "(objectclass=*)");
my $user = $cfgent->getValues('nsslapd-localuser');
my $uid = getpwnam $user;
chown $uid, -1, $fname;
$deleteflag = 1;
} else {
return ("error_creating_templdif", $!);
}
}
my $cmd = "$inst_dir/ldif2db -n \"$dbname\" -i \"$fname\"";
debug(1, "migrateDatabases: executing command $cmd\n");
$? = 0; # clear error condition
my $output = `$cmd 2>&1`;
if ($deleteflag) {
unlink($fname);
}
if ($?) {
return ('error_importing_migrated_db', $fname, $?, $output);
}
debug(1, $output);
$foundldif = 1;
}
if ($foundldif) {
return (); # done - can do nothing else for cross-platform
} elsif ($mig->{crossplatform}) { # cross platform requires LDIF files
return ('ldif_required_for_cross_platform', "$mig->{oldsroot}/$inst/db");
}
# if no LDIF files, just copy over the database directories
my $ent = $src->search("cn=ldbm database,cn=plugins,cn=config", "one",
"(objectclass=*)");
if (!$ent) {
return ("error_reading_olddbconfig", $src->getErrorString());
}
# there is one case where we want to just use the existing db directory
# that's the case where the user has moved the indexes and/or the
# transaction logs to different partitions for performance
# in that case, the old directory will not be the same as the default,
# and the directory will exist
my $olddefault = "$mig->{actualsroot}/$inst";
do {
my $cn = $ent->getValues('cn');
my %objclasses = map { lc($_) => $_ } $ent->getValues('objectclass');
if ($cn eq 'config') { # global config
my $newent = $dest->search($ent->getDN(), "base", "(objectclass=*)");
my $newdbdir = "";
if ("") {
$newdbdir = $newent->getValues('nsslapd-directory') ||
"/var/$mig->{pkgname}/$inst/db";
} else {
$newdbdir = $newent->getValues('nsslapd-directory') ||
"/var/lib/$mig->{pkgname}/$inst/db";
}
debug(1, "Found ldbm database plugin config entry ", $ent->getDN(), "\n");
my $dir = $ent->getValues('nsslapd-directory');
my $homedir = $ent->getValues('nsslapd-db-home-directory');
my $logdir = $ent->getValues('nsslapd-db-logdirectory');
debug(1, "old db dir = $dir homedir = $homedir logdir = $logdir\n");
my $srcdir = $homedir || $dir || "$olddefault/db";
if (-d $srcdir and ($srcdir !~ /^$olddefault/)) {
debug(2, "Not copying database files from [$srcdir]\n");
} else {
# replace the old sroot value with the actual physical location on the target/dest
$srcdir =~ s/^$mig->{actualsroot}/$mig->{oldsroot}/;
if (@errs = copyDatabaseDirs($srcdir, $newdbdir, 1)) {
return @errs;
}
}
if ($logdir && ($logdir ne $srcdir)) {
if (-d $logdir and ($logdir !~ /^$olddefault/)) {
debug(2, "Not copying transaction logs from [$logdir]\n");
} else {
# replace the old sroot value with the actual physical location on the target/dest
$newdbdir = $newent->getValues('nsslapd-db-logdirectory') ||
$newdbdir;
$logdir =~ s/^$mig->{actualsroot}/$mig->{oldsroot}/;
if (@errs = copyDatabaseDirs($logdir, $newdbdir, 1)) {
return @errs;
}
}
}
} elsif ($objclasses{nsbackendinstance}) {
debug(1, "Found ldbm database instance entry ", $ent->getDN(), "\n");
my $dir = $ent->getValues('nsslapd-directory');
# the default db instance directory is
# $oldroot/$inst/$cn
debug(1, "old instance $cn dbdir $dir\n");
my $srcdir = $dir || "$olddefault/db/$cn";
my $newent = $dest->search($ent->getDN(), "base", "(objectclass=*)");
my $newdbdir = "";
if ("") {
$newdbdir = $newent->getValues('nsslapd-directory') ||
"/var/$mig->{pkgname}/$inst/db/$cn";
} else {
$newdbdir = $newent->getValues('nsslapd-directory') ||
"/var/lib/$mig->{pkgname}/$inst/db/$cn";
}
if (-d $srcdir and ($srcdir !~ /^$olddefault/)) {
debug(2, "Not copying database indexes from [$srcdir]\n");
} else {
# replace the old sroot value with the actual physical location on the target/dest
$srcdir =~ s/^$mig->{actualsroot}/$mig->{oldsroot}/;
if (@errs = copyDatabaseDirs($srcdir, "$newdbdir")) {
return @errs;
}
# fix up the integer indexes
if ($mig->{integerattrs}) {
debug(3, "The schema has some integer attributes\n");
if (@errs = fixIntegerIndexes($mig, $inst_dir, $newdbdir)) {
return @errs;
}
} else {
debug(3, "No integer attributes to fix for $newdbdir\n");
}
}
}
} while ($ent = $src->nextEntry());
return ();
}
sub migrateChangelogs {
my $mig = shift; # the Migration object
my $inst = shift; # the instance name (e.g. slapd-instance)
my $src = shift; # a Conn to the source
my $dest = shift; # a Conn to the dest
my $olddefault = "$mig->{actualsroot}/$inst"; # old default db home directory
# changelog config entry
my $oldent = $src->search("cn=changelog5, cn=config", "base", "(objectclass=*)");
my $newent = $dest->search("cn=changelog5, cn=config", "base", "(objectclass=*)");
if ($oldent and $newent) { # changelog configured
my $oldcldir = $oldent->getValues('nsslapd-changelogdir');
if (-d $oldcldir and ($oldcldir !~ /^$olddefault/)) {
debug(2, "Not copying changelogdb from [$oldcldir]\n");
} else {
# replace the old sroot value with the actual physical location on the target/dest
$oldcldir =~ s/^$mig->{actualsroot}/$mig->{oldsroot}/;
my $newcldir = $newent->getValues('nsslapd-changelogdir');
my @errs = copyDatabaseDirs($oldcldir, $newcldir);
if (@errs) {
return @errs;
}
}
}
return ();
}
sub fixAttrsInEntry {
my ($ent, $mig, $inst) = @_;
for my $attr (keys %{$ent}) {
my $lcattr = lc $attr;
if ($ignoreOld{$lcattr}) {
debug(3, "fixAttrsInEntry: ignoring old invalid or obsolete attr $attr\n");
$ent->remove($attr);
next;
} elsif ($transformAttr{$lcattr}) {
my $newval = &{$transformAttr{$lcattr}}($ent, $attr, $mig, $inst);
if (!$newval) {
debug(2, "Removing attribute $attr from entry ", $ent->getDN(), "\n");
$ent->remove($attr);
} else {
debug(2, "Setting new value $newval for attribute $attr in entry ", $ent->getDN(), "\n");
$ent->setValues($attr, $newval);
}
} # else just keep as is
}
}
sub mergeEntries {
my ($old, $new, $mig, $inst) = @_;
my %inoldonly; # attrs in old entry but not new one
my %innewonly; # attrs in new entry but not old one
my @attrs; # attrs common to old and new
# if the attribute exists in the old entry but not the new one
# we should probably add it (checking for special cases first)
# if the attribute exists in the new entry but not the old one
# we might have to delete it from the new entry
# first, get a list of all attributes
foreach my $attr (keys %{$old}) {
if (! $new->exists($attr)) {
$inoldonly{$attr} = $attr;
} else {
push @attrs, $attr;
}
}
foreach my $attr (keys %{$new}) {
if (! $old->exists($attr)) {
$innewonly{$attr} = $attr;
}
}
# iterate through the attr lists
my $cn = lc $new->getValues("cn");
foreach my $attr (keys %inoldonly, keys %innewonly, @attrs) {
debug(3, "mergeEntries: merging entry ", $old->getDN(), " attr $attr\n");
my $lcattr = lc $attr;
if ($ignoreOld{$lcattr}) {
debug(3, "mergeEntries: ignoring old invalid or obsolete attr $attr\n");
next; # use new value or just omit if attr is obsolete
} elsif ($transformAttr{$lcattr}) {
# only transform if the value is in the old entry
if (!$innewonly{$attr}) {
my $oldval = $old->getValues($attr);
my $newval = &{$transformAttr{$lcattr}}($old, $attr, $mig, $inst);
if (!$newval) {
debug(3, "Removing attribute $attr from entry ", $new->getDN(), "\n");
$new->remove($attr);
} else {
debug(3, "Setting new value $newval for attribute $attr in entry ", $new->getDN(), "\n");
$new->setValues($attr, $newval);
}
}
} elsif ($cn eq "internationalization plugin" and $lcattr eq "nsslapd-pluginarg0") {
debug(3, "mergeEntries: using new value of internationalization plugin nsslapd-pluginarg0\n");
next; # use the new value of this path name
} elsif ($cn eq "referential integrity postoperation" and $lcattr eq "nsslapd-pluginarg1") {
debug(3, "mergeEntries: using new value of referential integrity postoperation nsslapd-pluginarg1\n");
next; # use the new value of this path name
} elsif ($innewonly{$attr}) {
debug(3, "mergeEntries: removing attr $attr from new entry\n");
$new->remove($attr); # in new but not old - just remove it
} else {
my $oldval = $old->getValues($attr);
my $newval = $new->getValues($attr);
$new->setValues($attr, $old->getValues($attr)); # use old value
debug(3, "mergeEntries: using old val $oldval instead of new val $newval\n");
}
}
}
my @allattrlist = ('*', 'aci', 'createTimestamp', 'creatorsName',
'modifyTimestamp', 'modifiersName');
sub getAllEntries {
my $conn = shift;
my $href = shift;
my $aref = shift;
# these are the special DSEs for which we only need ACIs
for my $dn ("", "cn=monitor", "cn=config") {
my $scope = $dn ? "sub" : "base";
my @attrlist;
if ($dn eq "cn=config") {
@attrlist = @allattrlist;
} else {
@attrlist = qw(aci);
}
my $ent = $conn->search($dn, $scope, "(objectclass=*)", 0, @attrlist);
next if (!$ent or ($conn->getErrorCode() eq 32));
if ($conn->getErrorCode()) {
return ('error_reading_entry', $dn, $conn->getErrorString());
}
do {
my $ndn = normalizeDN($ent->getDN());
$href->{$ndn} = $ent;
push @{$aref}, $ndn;
} while ($ent = $conn->nextEntry());
}
return ();
}
# these entries cannot be migrated if doing cross platform
my %noCrossPlatformDN = (
'cn=uniqueid generator,cn=config' => 'cn=uniqueid generator,cn=config'
);
sub mergeConfigEntries {
my $mig = shift; # the Migration object
my $inst = shift; # the instance name (e.g. slapd-instance)
my $src = shift; # a Conn to the source
my $dest = shift; # a Conn to the dest
# first, read in old file
my %olddse; # map of normalized DN to Entry
my @olddns; # the DNs in their original order
my @errs;
if (@errs = getAllEntries($src, \%olddse, \@olddns)) {
return @errs;
}
# next, read in new file
my %newdse; # map of normalized DN to Entry
my @allnewdns;
my @newdns; # the DNs in their original order that are not in olddns
if (@errs = getAllEntries($dest, \%newdse, \@allnewdns)) {
return @errs;
}
for my $ndn (@allnewdns) {
if (! exists $olddse{$ndn}) {
push @newdns, $ndn;
}
}
# now, compare entries
# if the entry exists in the old tree but not the new, add it
# if the entry exists in the new tree but not the old, delete it
# otherwise, merge the entries
# @olddns contains the dns in the old dse.ldif, including ones that
# may also be in the new dse.ldif
# @newdns contains dns that are only in the new dse.ldif
for my $dn (@olddns, @newdns) {
my $oldent = $olddse{$dn};
my $newent = $newdse{$dn};
my $op;
my $rc = 1;
if ($mig->{crossplatform} && $noCrossPlatformDN{$dn}) {
debug(1, "Cannot migrate the entry $dn - skipping\n");
next;
} elsif ($oldent && !$newent) {
if (!$ignoreOldEntries{$dn}) { # make sure it's not obsolete
# may have to fix up some values in the old entry
fixAttrsInEntry($oldent, $mig, $inst);
$rc = $dest->add($oldent);
$op = "add";
} else {
debug(2, "Ignoring entry $dn - configuration not supported\n");
}
} elsif (!$oldent && $newent) {
if ($dn =~ /o=deleteAfterMigration/i) {
$rc = $dest->delete($dn);
$op = "delete";
} else {
# do nothing - no change to entry
}
} else { #merge
# $newent will contain the merged entry
mergeEntries($oldent, $newent, $mig, $inst);
$rc = $dest->update($newent);
$op = "update";
}
if (!$rc) {
return ('error_updating_merge_entry', $op, $dn, $dest->getErrorString());
}
}
return ();
}
my %deletedschema = (
'50ns-calendar' => '50ns-calendar.ldif',
'50ns-compass' => '50ns-compass.ldif',
'50ns-delegated-admin' => '50ns-delegated-admin.ldif',
'50ns-legacy' => '50ns-legacy.ldif',
'50ns-mail' => '50ns-mail.ldif',
'50ns-mcd-browser' => '50ns-mcd-browser.ldif',
'50ns-mcd-config' => '50ns-mcd-config.ldif',
'50ns-mcd-li' => '50ns-mcd-li.ldif',
'50ns-mcd-mail' => '50ns-mcd-mail.ldif',
'50ns-media' => '50ns-media.ldif',
'50ns-mlm' => '50ns-mlm.ldif',
'50ns-msg' => '50ns-msg.ldif',
'50ns-netshare' => '50ns-netshare.ldif',
'50ns-news' => '50ns-news.ldif',
'50ns-proxy' => '50ns-proxy.ldif',
'50ns-wcal' => '50ns-wcal.ldif',
'51ns-calendar' => '51ns-calendar.ldif'
);
# these indexes are handled specially by the db code
my %intattrstoskip = (
'numsubordinates' => 'numSubordinates',
'hassubordinates' => 'hasSubordinates'
);
sub fixup99user {
my $mig = shift; # the Migration object
my $inst = shift; # The name of the instance
my $newschemadir = shift; # the new instance's schema path
my %attrstoskip = ();
my %objclassestoskip = ();
my $uid;
my $gid;
my $mode;
# Read every schema file in the legacy server's schema directory
for (glob("$mig->{oldsroot}/$inst/config/schema/*.ldif")) {
if (!open( OLDSCHEMA, $_ )) {
debug(0, "Can't open schema file $_: $!\n");
next;
}
# Read attributes from each file, looking for ones that contain
# the string "DESC ''".
my $in = new Mozilla::LDAP::LDIF(*OLDSCHEMA);
while (my $ent = readOneEntry $in) {
my @attrs = $ent->getValues('attributeTypes');
my @objclasses = $ent->getValues('objectClasses');
foreach my $attr (@attrs) {
debug(4, "Checking if attribute should be added to skip list ($attr)\n");
if ($attr =~ /\(\s*(\S*)\s*NAME .* DESC \'\'/) {
# Store the OID of those in an associative array for
# quick lookups later.
debug(3, "Adding attribute to list to skip (OID $1)\n");
$attrstoskip{"$1"} = 1;
}
}
foreach my $objclass (@objclasses) {
debug(4, "Checking if objectclass should be added to skip list ($objclass)\n");
if ($objclass =~ /\(\s*(\S*)\s*NAME .* DESC \'\'/) {
# Store the OID of those in an associative array for
# quick lookups later.
debug(3, "Adding objectclass to list to skip (OID $1)\n");
$objclassestoskip{"$1"} = 1;
}
}
}
close(OLDSCHEMA);
}
# Open the 99user.ldif file in the new server schema directory, which is a
# copy of the one in the legacy server. Also open a tempfile.
if (!open(USERSCHEMA, "$newschemadir/99user.ldif")) {
return ("error_opening_schema", "$newschemadir/99user.ldif", $!);
}
# Open a tempfile to write the cleaned 99user.ldif to
if (!open(TMPSCHEMA, ">$newschemadir/99user.ldif.tmp")) {
close(USERSCHEMA);
return ("error_opening_schema", "$newschemadir/99user.ldif.tmp", $!);
}
# Iterate through every attribute in the 99user.ldif file and write them to the
# tempfile if their OID doesn't exist in the "bad schema" array.
my $in = new Mozilla::LDAP::LDIF(*USERSCHEMA);
while (my $ent = readOneEntry $in) {
my @attrs = $ent->getValues('attributeTypes');
my @objclasses = $ent->getValues('objectClasses');
my @keepattrs;
my @keepobjclasses;
foreach my $attr (@attrs) {
if ($attr =~ /\(\s*(\S*)\s*NAME/) {
debug(3, "Checking if attribute should be trimmed (OID $1)\n");
# See if this OID is in our list of attrs to skip
if ($attrstoskip{"$1"}) {
debug(2, "Trimming attribute from 99user.ldif (OID $1)\n");
next;
}
}
# Keep this value
debug(3, "Keeping attribute in 99user.ldif (OID $1)\n");
push @keepattrs, $attr;
}
foreach my $objclass (@objclasses) {
if ($objclass =~ /\(\s*(\S*)\s*NAME/) {
debug(3, "Checking if objectclass should be trimmed (OID $1)\n");
# See if this OID is in our list of objectclasses to skip
if ($objclassestoskip{"$1"}) {
debug(2, "Trimming objectclass from 99user.ldif (OID $1)\n");
next;
}
}
# Keep this value
debug(3, "Keeping objectclass in 99user.ldif (OID $1)\n");
push @keepobjclasses, $objclass;
}
# Update the entry with the values we want to keep
if ($#keepattrs >= $[) {
$ent->setValues("attributetypes", @keepattrs);
} else {
$ent->remove("attributetypes");
}
if ($#keepobjclasses >= $[) {
$ent->setValues("objectclasses", @keepobjclasses);
} else {
$ent->remove("objectclasses");
}
# Write the entry to temp schema file
my $oldfh = select(TMPSCHEMA);
$ent->printLDIF();
select($oldfh);
}
close(USERSCHEMA);
close(TMPSCHEMA);
# Make the ownership and permissions on the temp schema file
# the same as the copied 99user.ldif.
($mode, $uid, $gid) = (stat("$newschemadir/99user.ldif"))[2,4,5];
if ((chown $uid, $gid, "$newschemadir/99user.ldif.tmp") != 1) {
return ("error_schema_permissions", "$newschemadir/99user.ldif.tmp", $!);
}
if ((chmod $mode, "$newschemadir/99user.ldif.tmp") != 1) {
return ("error_schema_permissions", "$newschemadir/99user.ldif.tmp", $!);
}
# Replace the copied 99user.ldif with the trimmed file.
if ((rename "$newschemadir/99user.ldif.tmp", "$newschemadir/99user.ldif") != 1) {
return ("error_renaming_schema", "$newschemadir/99user.ldif.tmp", "$newschemadir/99user.ldif", $!);
}
return();
}
sub migrateSchema {
my $mig = shift; # the Migration object
my $inst = shift; # the instance name (e.g. slapd-instance)
my $src = shift; # a Conn to the source
my $dest = shift; # a Conn to the dest
my @errs;
my $cfgent = $dest->search("cn=config", "base", "(objectclass=*)");
my $newschemadir = $cfgent->getValues('nsslapd-schemadir') ||
"$mig->{configdir}/$inst/schema";
my %newschema = map {basename($_, '.ldif') => $_} glob("$newschemadir/*.ldif");
delete $newschema{"99user"}; # always copy this one
for (glob("$mig->{oldsroot}/$inst/config/schema/*.ldif")) {
my $fname = basename($_, '.ldif');
next if ($deletedschema{$fname}); # don't copy deleted schema
next if ($newschema{$fname}); # use new version
if (system("cp -p $_ $newschemadir")) {
return ("error_migrating_schema", $_, $!);
}
}
# fixup any attributes with missing descriptions in 99user.ldif
if (@errs = fixup99user($mig, $inst, $newschemadir)) {
return @errs;
}
if (!$mig->{crossplatform}) {
# now, for all of the new schema, we need to get the list of attribute
# types with INTEGER syntax, including derived types (e.g. SUP 'attr')
# not required for cross platform because import of the old ldif file
# will automatically recreate all indexes
my %intattrs = ();
for (glob("$newschemadir/*.ldif")) {
# read in schema entry from LDIF
if (!open( MYSCHEMA, $_ )) {
debug(0, "Can't open schema file $_: $!\n");
next;
}
my $in = new Mozilla::LDAP::LDIF(*MYSCHEMA);
while (my $ent = readOneEntry $in) {
my @attrs = $ent->getValues('attributeTypes');
foreach my $attr (@attrs) {
# first see if the attribute definition uses INTEGER syntax
# else see if the super uses INTEGER - note this assumes the attributes
# are listed in the files in SUP order - that is, an attribute does
# not reference a SUP before it is defined
if ($attr =~ / NAME (?:\(\s)?[\']?(\w+)[\']?.* SYNTAX 1.3.6.1.4.1.1466.115.121.1.27[\{\s]/) {
next if ($intattrstoskip{lc $1});
$intattrs{lc $1} = $1;
} elsif (($attr =~ / NAME (?:\(\s)?[\']?(\w+)[\']?.*SUP [\']?(\w+)[\']?/) &&
$intattrs{lc $2}) {
next if ($intattrstoskip{lc $1});
$intattrs{lc $1} = $1;
}
}
}
close MYSCHEMA;
}
# %intattrs now contains all of the integer valued attributes
$mig->{integerattrs} = \%intattrs; # hashref
}
return ();
}
sub migrateDSInstance {
my $mig = shift; # the Migration object
my $inst = shift; # the instance name (e.g. slapd-instance)
my $src = shift; # a Conn to the source
my $dest = shift; # a Conn to the dest
my @errs;
# first, merge dse ldif
if (@errs = mergeConfigEntries($mig, $inst, $src, $dest)) {
return @errs;
}
# next, grab the old schema
if (@errs = migrateSchema($mig, $inst, $src, $dest)) {
return @errs;
}
if (@errs = updateDS($mig)) {
return @errs;
}
# next, the databases
if (@errs = migrateDatabases($mig, $inst, $src, $dest)) {
return @errs;
}
# next, the changelogs
if (!$mig->{crossplatform}) {
if (@errs = migrateChangelogs($mig, $inst, $src, $dest)) {
return @errs;
}
}
# next, the security files
my $cfgent = $dest->search("cn=config", "base", "(objectclass=*)");
my $newcertdir = $cfgent->getValues("nsslapd-certdir") ||
"/etc/dirsrv/$inst";
$mig->migrateSecurityFiles($inst, $newcertdir);
return @errs;
}
sub migrateDS {
my $mig = shift;
my @errs;
# migration needs to know the instance directory for the directory
# servers - this assumes they are all in the same place
if (!$mig->{ServerRoot}) {
if ("") {
$mig->{ServerRoot} = "$mig->{inf}->{General}->{prefix}/opt/dirsrv";
} else {
$mig->{ServerRoot} = "$mig->{inf}->{General}->{prefix}/usr/lib/x86_64-linux-gnu/dirsrv";
}
}
# for each instance
foreach my $inst (@{$mig->{instances}}) {
if (-f "$mig->{configdir}/$inst/dse.ldif") {
$mig->msg($WARN, 'instance_already_exists', "$mig->{configdir}/$inst/dse.ldif");
next;
}
# you could theoretically make this work with either a remote source or
# remote dest
# $mig->{inf} would contain an entry for each instance e.g.
# $mig->{inf}->{$inst}
# each instance specific entry would contain a {General} and a {slapd}
# all the information necessary to open an LDAP::Conn to the server
# if the source, you could also change createInfFromConfig to read
# the info from the Conn (or FileConn) that's needed to create the
# instance on the dest
# extract the information needed for ds_newinst.pl
my $oldconfigdir = "$mig->{oldsroot}/$inst/config";
my $inf = createInfFromConfig($oldconfigdir, $inst, \@errs);
if (@errs) {
$mig->msg(@errs);
return 0;
}
if (!$inf) {
$mig->msg($FATAL, 'error_opening_dseldif', "$oldconfigdir/dse.ldif", $!);
return 0;
}
debug(2, "Using inf created from $oldconfigdir\n");
# create servers but do not start them until after databases
# have been migrated
$inf->{slapd}->{start_server} = 0;
# create the new instance
@errs = createDSInstance($inf);
if ($inf->{filename}) {
unlink($inf->{filename});
}
if (@errs) {
$mig->msg(@errs);
$mig->msg($FATAL, 'error_creating_dsinstance', $inst);
goto cleanup;
} else {
$mig->msg('created_dsinstance', $inst);
}
my $src = new FileConn("$oldconfigdir/dse.ldif", 1); # read-only
if (!$src) {
$mig->msg($FATAL, 'error_opening_dseldif', "$oldconfigdir/dse.ldif", $!);
goto cleanup;
}
my $dest = new FileConn("$mig->{configdir}/$inst/dse.ldif");
if (!$dest) {
$src->close();
$mig->msg($FATAL, 'error_opening_dseldif', "$mig->{configdir}/$inst/dse.ldif", $!);
goto cleanup;
}
@errs = migrateDSInstance($mig, $inst, $src, $dest);
$src->close();
$dest->close();
if (@errs) {
$mig->msg(@errs);
goto cleanup;
}
# ensure any selinux relabeling gets done if needed
DSCreate::updateSelinuxPolicy($inf);
# do the tmpfiles.d stuff
@errs = DSCreate::updateTmpfilesDotD($inf);
if (@errs) {
$mig->msg(@errs);
goto cleanup;
}
# do the systemd stuff
@errs = DSCreate::updateSystemD(0, $inf);
if (@errs) {
$mig->msg(@errs);
goto cleanup;
}
# finally, start the server
if ($mig->{start_servers}) {
$inf->{slapd}->{start_server} = 1;
if (@errs = DSCreate::startServer($inf)) {
$mig->msg(@errs);
goto cleanup;
}
}
next;
cleanup:
if (-d "$mig->{configdir}/$inst") {
@errs = removeDSInstance($inf->{slapd}->{ServerIdentifier}, 1, "" ,"", $mig->{inf}->{General}->{prefix} );
if (@errs) {
$mig->msg(@errs);
}
}
return 0;
}
return 1;
}
#############################################################################
# Mandatory TRUE return value.
#
1;
# emacs settings
# Local Variables:
# mode:perl
# indent-tabs-mode: nil
# tab-width: 4
# End:
|