Add update code - make setup-ds.pl -u do updates

Updates are implemented in:
perl - code that plugs in to setup - scriptlets that are imported into
the setup perl interpreter and executed in process, giving access to all
of the packages and context provided by setup
ldif - applied to instances, in the same manner as ConfigFile directives
to setup
other - any executable file, shell script, etc. can be invoked, with a limited
amount of context from the setup process
An update directory is added to the package - /usr/share/dirsrv/update - this
directory contains the update files - the update filenames begin with two digits
and are executed in numeric order (00 first, then 01, etc. up to 99) which
should provide enough flexibility
In addition, there are 5 stages of update:
pre - invoked before any instance specific code
preinst, runinst, postinst - invoked for each instance
post - invoked after any instance specific code
Example files are provided which demonstrate how to get the context.
There are two different modes of operation for update:
online - must supply a bind dn and password for each instance - servers must
be up and running
offline - operates directly on the dse.ldif - servers must be shutdown first
A new section is added to the .inf file that can be passed in

[slapd-instancename]
RootDN = binddn
RootDNPwd = bindpw

The RootDN is optional - if not supplied, it will get the nsslapd-rootdn attribute from the dse.ldif for the instance.
I also fixed some problems with error messages.
The pam pta plugin entry was giving object class violations, so I added the
missing attributes - note that these are replaced by the plugin code when
the plugin is loaded - they are only needed during setup.

Fixed usage of $_ - $_ behaves like a dynamically scoped variable - which
means if you use it in an outer context, you cannot use it in an inner
context, even if it is used in a different function.  Rather than attempting
to figure out how to use $_ safely in lower level functions, I just removed
the use of it altogether, which also makes the code easier to read.
Reviewed by: nhosoi (Thanks!) - fixed minor issues found
Platforms tested: Fedora 11

1 files changed, 65 insertions, 0 deletions

diff --git a/ldap/admin/src/scripts/dsupdate.map.in b/ldap/admin/src/scripts/dsupdate.map.in
new file mode 100644
index 00000000..90a6d7e0
--- /dev/null
+++ b/ldap/admin/src/scripts/dsupdate.map.in
@@ -0,0 +1,65 @@
+# BEGIN COPYRIGHT BLOCK
+# This Program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; version 2 of the License.
+#
+# This Program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
+# Place, Suite 330, Boston, MA 02111-1307 USA.
+#
+# In addition, as a special exception, Red Hat, Inc. gives You the additional
+# right to link the code of this Program with code not covered under the GNU
+# General Public License ("Non-GPL Code") and to distribute linked combinations
+# including the two, subject to the limitations in this paragraph. Non-GPL Code
+# permitted under this exception must only link to the code of this Program
+# through those well defined interfaces identified in the file named EXCEPTION
+# found in the source code files (the "Approved Interfaces"). The files of
+# Non-GPL Code may instantiate templates or use macros or inline functions from
+# the Approved Interfaces without causing the resulting work to be covered by
+# the GNU General Public License. Only Red Hat, Inc. may make changes or
+# additions to the list of Approved Interfaces. You must obey the GNU General
+# Public License in all respects for all of the Program code and other code used
+# in conjunction with the Program except the Non-GPL Code covered by this
+# exception. If you modify this file, you may extend this exception to your
+# version of the file, but you are not obligated to do so. If you do not wish to
+# provide this exception without modification, you must delete this exception
+# statement from your version and license this file solely under the GPL without
+# exception.
+#
+#
+# Copyright (C) 2009 Red Hat, Inc.
+# All rights reserved.
+# END COPYRIGHT BLOCK
+#
+# [Parameter resolution rules]
+# * If the right-hand value is in ` (backquote), the value is eval'ed by perl.
+#   The output should be stored in $returnvalue to pass to the internal hash.
+# * If the right-hand value is in " (doublequote), the value is passed as is.
+# * If the right-hand value is not in any quote, the value should be found
+#   in either of the setup inf file (static) or the install inf file (dynamic).
+# * Variables surrounded by @ (e.g., @configdir@) are replaced with the 
+#   system path at the compile time.
+# * The right-hand value can contain variables surrounded by % (e.g., %asid%)
+#   which refers the right-hand value (key) of this map file.
+# 
+fqdn =			FullMachineName
+dsid =			ServerIdentifier
+ds_user =		SuiteSpotUserID
+ds_port =		ServerPort
+rootdn =		RootDN
+
+schema_dir =    schema_dir
+lock_dir =      lock_dir
+tmp_dir =       tmp_dir
+cert_dir =      cert_dir
+ldif_dir =      ldif_dir
+bak_dir =       bak_dir
+inst_dir =      inst_dir
+log_dir =       log_dir
+config_dir =    config_dir
+db_dir =        db_dir
+run_dir =       run_dir