[1451] initial addition of directory and files

configure.ac

@@ -890,6 +890,8 @@ AC_CONFIG_FILES([Makefile
                  src/bin/auth/Makefile
                  src/bin/auth/tests/Makefile
                  src/bin/auth/benchmarks/Makefile
+                 src/bin/ddns/Makefile
+                 src/bin/ddns/tests/Makefile
                  src/bin/dhcp6/Makefile
                  src/bin/dhcp6/tests/Makefile
                  src/bin/resolver/Makefile
@@ -998,6 +1000,8 @@ AC_OUTPUT([doc/version.ent
            src/bin/cmdctl/run_b10-cmdctl.sh
            src/bin/cmdctl/tests/cmdctl_test
            src/bin/cmdctl/cmdctl.spec.pre
+           src/bin/ddns/ddns.py
+           src/bin/ddns/ddns.spec.pre
            src/bin/xfrin/tests/xfrin_test
            src/bin/xfrin/xfrin.py
            src/bin/xfrin/run_b10-xfrin.sh

src/bin/ddns/Makefile.am

@@ -0,0 +1,44 @@
+SUBDIRS = . tests
+
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+
+pkglibexec_SCRIPTS = b10-ddns
+
+b10_ddnsdir = $(pkgdatadir)
+b10_ddns_DATA = ddns.spec
+
+nodist_pylogmessage_PYTHON = $(PYTHON_LOGMSGPKG_DIR)/work/ddns_messages.py
+pylogmessagedir = $(pyexecdir)/isc/log_messages/
+
+CLEANFILES = b10-ddns ddns.pyc ddns.spec
+CLEANFILES += $(PYTHON_LOGMSGPKG_DIR)/work/ddns_messages.py
+CLEANFILES += $(PYTHON_LOGMSGPKG_DIR)/work/ddns_messages.pyc
+
+#man_MANS = b10-ddns.8
+#EXTRA_DIST = $(man_MANS) b10-ddns.xml ddns_messages.mes
+
+if ENABLE_MAN
+
+b10-ddns.8: b10-ddns.xml
+	xsltproc --novalid --xinclude --nonet -o $@ http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl $(srcdir)/b10-ddns.xml
+
+endif
+
+# Define rule to build logging source files from message file
+$(PYTHON_LOGMSGPKG_DIR)/work/ddns_messages.py : ddns_messages.mes
+	$(top_builddir)/src/lib/log/compiler/message \
+	-d $(PYTHON_LOGMSGPKG_DIR)/work -p $(srcdir)/ddns_messages.mes
+
+ddns.spec: ddns.spec.pre
+	$(SED) -e "s|@@LOCALSTATEDIR@@|$(localstatedir)|" ddns.spec.pre >$@
+
+# this is done here since configure.ac AC_OUTPUT doesn't expand exec_prefix
+b10-ddns: ddns.py $(PYTHON_LOGMSGPKG_DIR)/work/ddns_messages.py
+	$(SED) -e "s|@@PYTHONPATH@@|@pyexecdir@|" \
+	       -e "s|@@LOCALSTATEDIR@@|$(localstatedir)|" ddns.py >$@
+	chmod a+x $@
+
+CLEANDIRS = __pycache__
+
+clean-local:
+	rm -rf $(CLEANDIRS)

src/bin/ddns/b10-ddns.xml

@@ -0,0 +1,135 @@
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+               "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
+	       [<!ENTITY mdash "&#8212;">]>
+<!--
+ - Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC")
+ -
+ - Permission to use, copy, modify, and/or distribute this software for any
+ - purpose with or without fee is hereby granted, provided that the above
+ - copyright notice and this permission notice appear in all copies.
+ -
+ - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ - AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ - PERFORMANCE OF THIS SOFTWARE.
+-->
+
+<refentry>
+
+  <refentryinfo>
+    <date>December 9, 2011</date>
+  </refentryinfo>
+
+  <refmeta>
+    <refentrytitle>b10-ddns</refentrytitle>
+    <manvolnum>8</manvolnum>
+    <refmiscinfo>BIND10</refmiscinfo>
+  </refmeta>
+
+  <refnamediv>
+    <refname>b10-ddns</refname>
+    <refpurpose>Dynamic DNS update service</refpurpose>
+  </refnamediv>
+
+  <docinfo>
+    <copyright>
+      <year>2011</year>
+      <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
+    </copyright>
+  </docinfo>
+
+  <refsynopsisdiv>
+    <cmdsynopsis>
+      <command>b10-ddns</command>
+      <arg><option>-v</option></arg>
+      <arg><option>--verbose</option></arg>
+    </cmdsynopsis>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>DESCRIPTION</title>
+    <para>The <command>b10-ddns</command> daemon provides the BIND 10
+      DDNS update service.
+      Normally it is started by the
+      <citerefentry><refentrytitle>bind10</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+      boss process.
+      When the <command>b10-auth</command> DNS server receives
+      a DDNS update, <command>b10-ddns</command> updates the zone
+      in the BIND 10 zone data store.
+    </para>
+
+    <para>
+      This daemon communicates with BIND 10 over a
+      <citerefentry><refentrytitle>b10-msgq</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+      C-Channel connection.  If this connection is not established,
+      <command>b10-ddns</command> will exit.
+    </para>
+
+    <para>
+     <command>b10-ddns</command> receives its configurations from
+<citerefentry><refentrytitle>b10-cfgmgr</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>CONFIGURATION AND COMMANDS</title>
+    <para>
+      The configurable settings are:
+    </para>
+    <para>
+      <varname>TODO</varname>
+      TODO
+    </para>
+
+<!-- TODO: formating -->
+    <para>
+      The module commands are:
+    </para>
+    <para>
+      <command>shutdown</command> Exits <command>b10-ddns</command>.
+      (Note that the BIND 10 boss process will restart this service.)
+    </para>
+
+  </refsect1>
+
+
+  <refsect1>
+    <title>SEE ALSO</title>
+    <para>
+      <citerefentry>
+        <refentrytitle>b10-auth</refentrytitle><manvolnum>8</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>b10-cfgmgr</refentrytitle><manvolnum>8</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>b10-msgq</refentrytitle><manvolnum>8</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>b10-xfrin</refentrytitle><manvolnum>8</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>b10-xfrout</refentrytitle><manvolnum>8</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>bind10</refentrytitle><manvolnum>8</manvolnum>
+      </citerefentry>,
+      <citetitle>BIND 10 Guide</citetitle>.
+    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>HISTORY</title>
+    <para>
+      The <command>b10-ddns</command> daemon was first implemented
+      in December 2011 for the ISC BIND 10 project.
+    </para>
+  </refsect1>
+</refentry><!--
+ - Local variables:
+ - mode: sgml
+ - End:
+-->

src/bin/ddns/ddns.py.in

@@ -0,0 +1,99 @@
+#!@PYTHON@
+
+# Copyright (C) 2010  Internet Systems Consortium.
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SYSTEMS CONSORTIUM
+# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# INTERNET SYSTEMS CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+import sys; sys.path.append ('@@PYTHONPATH@@')
+import isc
+from isc.dns import *
+from isc.config.ccsession import *
+from isc.cc import SessionError, SessionTimeout
+import isc.util.process
+
+from isc.log_messages.ddns_messages import *
+
+isc.log.init("b10-ddns")
+logger = isc.log.Logger("ddns")
+#DBG_DDNS_TRACE = logger.DBGLVL_TRACE_BASIC
+
+isc.util.process.rename()
+
+class DDNSConfigError(Exception):
+    """An exception indicating an error in updating ddns configuration.
+
+    This exception is raised when the ddns process encouters an error in
+    handling configuration updates.  Not all syntax error can be caught
+    at the module-CC layer, so ddns needs to (explicitly or implicitly)
+    validate the given configuration data itself.  When it finds an error
+    it raises this exception (either directly or by converting an exception
+    from other modules) as a unified error in configuration.
+    """
+    pass
+
+class DDNSSessionError(Exception):
+    '''An exception raised for some unexpected events during an ddns session.
+    '''
+    pass
+
+class DDNSServer:
+    def __init__(self):
+        pass
+    
+    def shutdown(self):
+        pass
+
+    def run(self):
+        pass
+
+ddns_server = None
+
+def signal_handler(signal, frame):
+    if ddns_server is not None:
+        ddns_server.shutdown()
+        sys.exit(0)
+
+def set_signal_handler():
+    signal.signal(signal.SIGTERM, signal_handler)
+    signal.signal(signal.SIGINT, signal_handler)
+
+def set_cmd_options(parser):
+    parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
+            help="display more about what is going on")
+
+if '__main__' == __name__:
+    try:
+        parser = OptionParser()
+        set_cmd_options(parser)
+        (options, args) = parser.parse_args()
+        VERBOSE_MODE = options.verbose
+
+        set_signal_handler()
+        ddns_server = DDNSServer()
+        ddns_server.run()
+    except KeyboardInterrupt:
+        logger.INFO(DDNS_STOPPED_BY_KEYBOARD)
+    except SessionError as e:
+        logger.error(DDNS_CC_SESSION_ERROR, str(e))
+    except ModuleCCSessionError as e:
+        logger.error(DDNS_MODULECC_SESSION_ERROR, str(e))
+    except DDNSConfigError as e:
+        logger.error(DDNS_CONFIG_ERROR, str(e))
+    except SessionTimeout as e:
+        logger.error(DDNS_CC_SESSION_TIMEOUT_ERROR)
+
+    if ddns_server:
+        ddns_server.shutdown()
+

src/bin/ddns/ddns.spec.pre.in

@@ -0,0 +1,15 @@
+{
+  "module_spec": {
+     "module_name": "DDNS",
+     "config_data": [
+      ],
+      "commands": [
+        {
+          "command_name": "shutdown",
+          "command_description": "Shut down DDNS",
+          "command_args": []
+        }
+      ]
+  }
+}
+

src/bin/ddns/ddns_message.mes

@@ -0,0 +1,40 @@
+# Copyright (C) 2011  Internet Systems Consortium, Inc. ("ISC")
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+# AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+
+# No namespace declaration - these constants go in the global namespace
+# of the ddns messages python module.
+
+% DDNS_CC_SESSION_ERROR error reading from cc channel: %1
+There was a problem reading from the command and control channel. The
+most likely cause is that the msgq daemon is not running.
+
+% DDNS_CC_SESSION_TIMEOUT_ERROR timeout waiting for cc response
+There was a problem reading a response from another module over the
+command and control channel. The most likely cause is that the
+configuration manager b10-cfgmgr is not running.
+
+% DDNS_CONFIG_ERROR error found in configuration data: %1
+The ddns process encountered an error when installing the configuration at
+startup time.  Details of the error are included in the log message.
+
+% DDNS_MODULECC_SESSION_ERROR error encountered by configuration/command module: %1
+There was a problem in the lower level module handling configuration and
+control commands.  This could happen for various reasons, but the most likely
+cause is that the configuration database contains a syntax error and ddns
+failed to start at initialization.  A detailed error message from the module
+will also be displayed.
+
+% DDNS_STOPPED_BY_KEYBOARD keyboard interrupt, shutting down
+There was a keyboard interrupt signal to stop the ddns daemon. The
+daemon will now shut down.

src/bin/ddns/tests/ddns_test.in

@@ -0,0 +1,27 @@
+#! /bin/sh
+
+# Copyright (C) 2010  Internet Systems Consortium.
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SYSTEMS CONSORTIUM
+# DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# INTERNET SYSTEMS CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+PYTHON_EXEC=${PYTHON_EXEC:-@PYTHON@}
+export PYTHON_EXEC
+
+TEST_PATH=@abs_top_srcdir@/src/bin/xfrout/tests
+PYTHONPATH=@abs_top_srcdir@/src/bin/xfrout:@abs_top_srcdir@/src/lib/python
+export PYTHONPATH
+
+cd ${TEST_PATH}
+exec ${PYTHON_EXEC} -O xfrout_test.py $*
+