[5033] - kea-dhcp6 now uses new D2ClientConfigParser

    src/bin/dhcp6/json_config_parser.cc
        createGlobalDhcp6ConfigParser()
        - added clause to invoke new D2ClientConfigParser to
        set staging config
        - added clause to apply staged D2ClientConfig (formerly done
        by parser commit

    src/bin/dhcp6/parser_context.h
    src/bin/dhcp6/parser_context.cc
        aded PARSER_DHCP_DDNS context

    src/bin/dhcp4/simple_parser6.h
    src/bin/dhcp4/simple_parser6.cc
        defined SimpleParser6::D2_CLIENT_CONFIG_DEFAULTS
        SimpleParser6::setAllDefaults() - now sets defaults
        for D2ClientConfig

    src/bin/dhcp6/tests/d2_unittest.cc
    src/bin/dhcp6/tests/fqdn_unittest.cc
        Updated replace-name-mode values and tests
        (true/false no longer supported)

    doc/guide/dhcp6-srv.xml
        Updated, replace-client-name no longer accepts booleans

9 files changed, 92 insertions, 56 deletions

diff --git a/src/bin/dhcp4/json_config_parser.cc b/src/bin/dhcp4/json_config_parser.cc
index dc8ec9e709..c8dc4f5c2a 100644
--- a/src/bin/dhcp4/json_config_parser.cc
+++ b/src/bin/dhcp4/json_config_parser.cc
@@ -742,12 +742,10 @@ configureDhcp4Server(Dhcpv4Srv&, isc::data::ConstElementPtr config_set) {
                 hooks_parser->commit();
             }
 
-            {
-                // Used to be done by parser commit
-                D2ClientConfigPtr cfg;
-                cfg = CfgMgr::instance().getStagingCfg()->getD2ClientConfig();
-                CfgMgr::instance().setD2ClientConfig(cfg);
-            }
+            // Apply the staged D2ClientConfig, used to be done by parser commit
+            D2ClientConfigPtr cfg;
+            cfg = CfgMgr::instance().getStagingCfg()->getD2ClientConfig();
+            CfgMgr::instance().setD2ClientConfig(cfg);
         }
         catch (const isc::Exception& ex) {
             LOG_ERROR(dhcp4_logger, DHCP4_PARSER_COMMIT_FAIL).arg(ex.what());
diff --git a/src/bin/dhcp4/tests/fqdn_unittest.cc b/src/bin/dhcp4/tests/fqdn_unittest.cc
index 41ef4ba788..179c2ae2fa 100644
--- a/src/bin/dhcp4/tests/fqdn_unittest.cc
+++ b/src/bin/dhcp4/tests/fqdn_unittest.cc
@@ -427,10 +427,7 @@ public:
     // in a client request correctly, according to the replace-client-name
     // mode configuration parameter.
     //
-    // @param mode - value to use client-name-replacment parameter - for
-    // mode labels such as NEVER and ALWAYS must incluce enclosing quotes:
-    // "\"NEVER\"".  This allows us to also pass in boolean literals which
-    // are unquoted.
+    // @param mode - value to use for replace-client-name
     // @param client_name_flag - specifies whether or not the client request
     // should contain a hostname option
     // @param exp_replacement_flag - specifies whether or not the server is
@@ -452,7 +449,7 @@ public:
             "\"dhcp-ddns\": {"
             "\"enable-updates\": true,"
             "\"qualifying-suffix\": \"fake-suffix.isc.org.\","
-            "\"replace-client-name\": %s"
+            "\"replace-client-name\": \"%s\""
             "}}";
 
         // Create the configuration and configure the server
@@ -1551,24 +1548,24 @@ TEST_F(NameDhcpv4SrvTest, emptyFqdn) {
 // the supported modes.
 TEST_F(NameDhcpv4SrvTest, replaceClientNameModeTest) {
 
-    testReplaceClientNameMode("\"never\"",
+    testReplaceClientNameMode("never",
                               CLIENT_NAME_NOT_PRESENT, NAME_NOT_REPLACED);
-    testReplaceClientNameMode("\"never\"",
+    testReplaceClientNameMode("never",
                               CLIENT_NAME_PRESENT, NAME_NOT_REPLACED);
 
-    testReplaceClientNameMode("\"always\"",
+    testReplaceClientNameMode("always",
                               CLIENT_NAME_NOT_PRESENT, NAME_REPLACED);
-    testReplaceClientNameMode("\"always\"",
+    testReplaceClientNameMode("always",
                               CLIENT_NAME_PRESENT, NAME_REPLACED);
 
-    testReplaceClientNameMode("\"when-present\"",
+    testReplaceClientNameMode("when-present",
                               CLIENT_NAME_NOT_PRESENT, NAME_NOT_REPLACED);
-    testReplaceClientNameMode("\"when-present\"",
+    testReplaceClientNameMode("when-present",
                               CLIENT_NAME_PRESENT, NAME_REPLACED);
 
-    testReplaceClientNameMode("\"when-not-present\"",
+    testReplaceClientNameMode("when-not-present",
                               CLIENT_NAME_NOT_PRESENT, NAME_REPLACED);
-    testReplaceClientNameMode("\"when-not-present\"",
+    testReplaceClientNameMode("when-not-present",
                               CLIENT_NAME_PRESENT, NAME_NOT_REPLACED);
 }
 
diff --git a/src/bin/dhcp6/json_config_parser.cc b/src/bin/dhcp6/json_config_parser.cc
index 04e1e0fcf0..9512eba44e 100644
--- a/src/bin/dhcp6/json_config_parser.cc
+++ b/src/bin/dhcp6/json_config_parser.cc
@@ -716,8 +716,7 @@ DhcpConfigParser* createGlobal6DhcpConfigParser(const std::string& config_id,
         parser = new DbAccessParser(config_id, DbAccessParser::HOSTS_DB);
     } else if (config_id.compare("hooks-libraries") == 0) {
         parser = new HooksLibrariesParser(config_id);
-    } else if (config_id.compare("dhcp-ddns") == 0) {
-        parser = new D2ClientConfigParser(config_id);
+    // dhcp-ddns has been converted to SimpleParser
     } else if (config_id.compare("mac-sources") == 0) {
         parser = new MACSourcesListConfigParser(config_id,
                                                 globalContext());
@@ -911,6 +910,13 @@ configureDhcp6Server(Dhcpv6Srv&, isc::data::ConstElementPtr config_set) {
                 continue;
             }
 
+            if (config_pair.first == "dhcp-ddns") {
+                D2ClientConfigParser parser;
+                D2ClientConfigPtr cfg = parser.parse(config_pair.second);
+                CfgMgr::instance().getStagingCfg()->setD2ClientConfig(cfg);
+                continue;
+            }
+
             ParserPtr parser(createGlobal6DhcpConfigParser(config_pair.first,
                                                            config_pair.second));
             LOG_DEBUG(dhcp6_logger, DBG_DHCP6_DETAIL, DHCP6_PARSER_CREATED)
@@ -1012,6 +1018,11 @@ configureDhcp6Server(Dhcpv6Srv&, isc::data::ConstElementPtr config_set) {
             if (hooks_parser) {
                 hooks_parser->commit();
             }
+
+            // Apply staged D2ClientConfig, used to be done by parser commit
+            D2ClientConfigPtr cfg;
+            cfg = CfgMgr::instance().getStagingCfg()->getD2ClientConfig();
+            CfgMgr::instance().setD2ClientConfig(cfg);
         }
         catch (const isc::Exception& ex) {
             LOG_ERROR(dhcp6_logger, DHCP6_PARSER_COMMIT_FAIL).arg(ex.what());
diff --git a/src/bin/dhcp6/parser_context.cc b/src/bin/dhcp6/parser_context.cc
index 6293f91bee..cd90fefc76 100644
--- a/src/bin/dhcp6/parser_context.cc
+++ b/src/bin/dhcp6/parser_context.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -163,6 +163,8 @@ Parser6Context::contextName()
         return ("loggers");
     case OUTPUT_OPTIONS:
         return ("output-options");
+    case DHCP_DDNS:
+        return ("dhcp-ddns");
     default:
         return ("__unknown__");
     }
diff --git a/src/bin/dhcp6/parser_context.h b/src/bin/dhcp6/parser_context.h
index 077bb6e639..ea260d398c 100644
--- a/src/bin/dhcp6/parser_context.h
+++ b/src/bin/dhcp6/parser_context.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2016 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2017 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -83,7 +83,10 @@ public:
         PARSER_OPTION_DATA,
 
         /// This will parse the input as hooks-library.
-        PARSER_HOOKS_LIBRARY
+        PARSER_HOOKS_LIBRARY,
+
+        /// This will parse the input as dhcp-ddns. (D2 client config)
+        PARSER_DHCP_DDNS
     } ParserType;
 
     /// @brief Default constructor.
@@ -250,7 +253,10 @@ public:
         LOGGERS,
 
         /// Used while parsing Logging/loggers/output_options structures.
-        OUTPUT_OPTIONS
+        OUTPUT_OPTIONS,
+
+        /// Used while parsing Dhcp6/dhcp-ddns
+        DHCP_DDNS
     } ParserContext;
 
     /// @brief File name
diff --git a/src/bin/dhcp6/simple_parser6.cc b/src/bin/dhcp6/simple_parser6.cc
index aa2844d939..f2cba8deef 100644
--- a/src/bin/dhcp6/simple_parser6.cc
+++ b/src/bin/dhcp6/simple_parser6.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -73,6 +73,27 @@ const ParamsList SimpleParser6::INHERIT_GLOBAL_TO_SUBNET6 = {
     "preferred-lifetime",
     "valid-lifetime"
 };
+
+/// @brief This table defines default values for D2 client configuration
+///
+const SimpleDefaults SimpleParser6::D2_CLIENT_CONFIG_DEFAULTS = {
+    { "server-ip", Element::string, "127.0.0.1" },
+    { "server-port", Element::integer, "53001" },
+    // default sender-ip depends on server-ip family, so we leave default blank
+    // parser knows to use the appropriate ZERO address based on server-ip
+    { "sender-ip", Element::string, "" },
+    { "sender-port", Element::integer, "0" },
+    { "max-queue-size", Element::integer, "1024" },
+    { "ncr-protocol", Element::string, "UDP" },
+    { "ncr-format", Element::string, "JSON" },
+    { "always-include-fqdn", Element::boolean, "false" },
+    { "override-no-update", Element::boolean, "false" },
+    { "override-client-update", Element::boolean, "false" },
+    { "replace-client-name", Element::string, "NEVER" },
+    { "generated-prefix", Element::string, "myhost" },
+    { "qualifying-suffix", Element::string, "" }
+};
+
 /// @}
 
 /// ---------------------------------------------------------------------------
@@ -101,6 +122,22 @@ size_t SimpleParser6::setAllDefaults(isc::data::ElementPtr global) {
         }
     }
 
+    ConstElementPtr d2_client = global->get("dhcp-ddns");
+    /// @todo - what if it's not in global? should we add it?
+    if (d2_client) {
+        // Because "dhcp-ddns" is a MapElement and global->get()
+        // returns a ConstElementPtr, then we get a map we can't
+        // change.  So go thru gyrations to create a non-const
+        // map, update it with default values and then replace
+        // the one in global with the new one. Ick.
+        std::map<std::string, ConstElementPtr> d2_map;
+        d2_client->getValue(d2_map);
+        ElementPtr new_map(new MapElement());
+        new_map->setValue(d2_map);
+        cnt += SimpleParser::setDefaults(new_map, D2_CLIENT_CONFIG_DEFAULTS);
+        global->set("dhcp-ddns", new_map);
+    }
+
     return (cnt);
 }
 
diff --git a/src/bin/dhcp6/simple_parser6.h b/src/bin/dhcp6/simple_parser6.h
index 6093afc28e..0fa456c659 100644
--- a/src/bin/dhcp6/simple_parser6.h
+++ b/src/bin/dhcp6/simple_parser6.h
@@ -34,6 +34,7 @@ public:
     static const isc::data::SimpleDefaults OPTION6_DEFAULTS;
     static const isc::data::SimpleDefaults GLOBAL6_DEFAULTS;
     static const isc::data::ParamsList INHERIT_GLOBAL_TO_SUBNET6;
+    static const isc::data::SimpleDefaults D2_CLIENT_CONFIG_DEFAULTS;
 };
 
 };
diff --git a/src/bin/dhcp6/tests/d2_unittest.cc b/src/bin/dhcp6/tests/d2_unittest.cc
index 09d0528928..5112ff4fc3 100644
--- a/src/bin/dhcp6/tests/d2_unittest.cc
+++ b/src/bin/dhcp6/tests/d2_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2015 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2017 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -117,7 +117,7 @@ Dhcp6SrvD2Test::configureD2(bool enable_d2, const bool exp_result,
         "     \"allow-client-update\" : true, "
         "     \"override-no-update\" : true, "
         "     \"override-client-update\" : true, "
-        "     \"replace-client-name\" : true, "
+        "     \"replace-client-name\" : \"when-present\", "
         "     \"generated-prefix\" : \"test.prefix\", "
         "     \"qualifying-suffix\" : \"test.suffix.\" },"
         "\"valid-lifetime\": 4000 }";
diff --git a/src/bin/dhcp6/tests/fqdn_unittest.cc b/src/bin/dhcp6/tests/fqdn_unittest.cc
index d645995f9d..b7702bcb01 100644
--- a/src/bin/dhcp6/tests/fqdn_unittest.cc
+++ b/src/bin/dhcp6/tests/fqdn_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2016 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2017 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -391,10 +391,8 @@ public:
     // in a client request correctly, according to the replace-client-name
     // mode configuration parameter.
     //
-    // @param mode - value to use client-name-replacment parameter - for
-    // mode labels such as NEVER and ALWAYS must incluce enclosing quotes:
-    // "\"NEVER\"".  This allows us to also pass in boolean literals which
-    // are unquoted.
+    // @param mode - value to use for replace-client-name mode
+    //
     // @param client_name_flag - specifies whether or not the client request
     // should contain a hostname option
     // @param exp_replacement_flag - specifies whether or not the server is
@@ -420,7 +418,7 @@ public:
             "\"dhcp-ddns\": { \n"
             "\"enable-updates\": true, \n"
             "\"qualifying-suffix\": \"fake-suffix.isc.org.\", \n"
-            "\"replace-client-name\": %s \n"
+            "\"replace-client-name\": \"%s\" \n"
             "}} \n";
 
         // Create the configuration and configure the server
@@ -1494,39 +1492,25 @@ TEST_F(FqdnDhcpv6SrvTest, hostnameReservationDdnsDisabled) {
 TEST_F(FqdnDhcpv6SrvTest, replaceClientNameModeTest) {
     isc::dhcp::test::IfaceMgrTestConfig test_config(true);
 
-    // We pass mode labels in with enclosing quotes so we can also test
-    // unquoted boolean literals true/false
-    testReplaceClientNameMode("\"never\"",
+    testReplaceClientNameMode("never",
                               CLIENT_NAME_NOT_PRESENT, NAME_NOT_REPLACED);
-    testReplaceClientNameMode("\"never\"",
+    testReplaceClientNameMode("never",
                               CLIENT_NAME_PRESENT, NAME_NOT_REPLACED);
 
-    testReplaceClientNameMode("\"always\"",
+    testReplaceClientNameMode("always",
                               CLIENT_NAME_NOT_PRESENT, NAME_REPLACED);
-    testReplaceClientNameMode("\"always\"",
+    testReplaceClientNameMode("always",
                               CLIENT_NAME_PRESENT, NAME_REPLACED);
 
-    testReplaceClientNameMode("\"when-present\"",
+    testReplaceClientNameMode("when-present",
                               CLIENT_NAME_NOT_PRESENT, NAME_NOT_REPLACED);
-    testReplaceClientNameMode("\"when-present\"",
+    testReplaceClientNameMode("when-present",
                               CLIENT_NAME_PRESENT, NAME_REPLACED);
 
-    testReplaceClientNameMode("\"when-not-present\"",
+    testReplaceClientNameMode("when-not-present",
                               CLIENT_NAME_NOT_PRESENT, NAME_REPLACED);
-    testReplaceClientNameMode("\"when-not-present\"",
-                              CLIENT_NAME_PRESENT, NAME_NOT_REPLACED);
-
-    // Verify that boolean false produces the same result as RCM_NEVER
-    testReplaceClientNameMode("false",
-                              CLIENT_NAME_NOT_PRESENT, NAME_NOT_REPLACED);
-    testReplaceClientNameMode("false",
+    testReplaceClientNameMode("when-not-present",
                               CLIENT_NAME_PRESENT, NAME_NOT_REPLACED);
-
-    // Verify that boolean true produces the same result as RCM_WHEN_PRESENT
-    testReplaceClientNameMode("true",
-                              CLIENT_NAME_NOT_PRESENT, NAME_NOT_REPLACED);
-    testReplaceClientNameMode("true",
-                              CLIENT_NAME_PRESENT, NAME_REPLACED);
 }
 
 }   // end of anonymous namespace