[3588] Return pointer to the RW option definition configs, not a reference.

src/bin/dhcp4/dhcp4_srv.cc

@@ -1807,7 +1807,7 @@ Dhcpv4Srv::unpackOptions(const OptionBuffer& buf,
         option_defs = LibDHCP::getOptionDefs(Option::V4);
     } else if (!option_space.empty()) {
         OptionDefContainerPtr option_defs_ptr = CfgMgr::instance()
-            .getCurrentCfg()->getCfgOptionDef().getAll(option_space);
+            .getCurrentCfg()->getCfgOptionDef()->getAll(option_space);
         if (option_defs_ptr != NULL) {
             option_defs = *option_defs_ptr;
         }

src/bin/dhcp4/tests/config_parser_unittest.cc

@@ -80,6 +80,7 @@ public:
         srv_.reset(new Dhcpv4Srv(0));
         // Create fresh context.
         globalContext()->copyContext(ParserContext(Option::V4));
+        resetConfiguration();
     }
 
     // Check that no hooks libraries are loaded.  This is a pre-condition for
@@ -444,8 +445,6 @@ public:
     void resetConfiguration() {
         string config = "{ \"interfaces\": [ \"*\" ],"
             "\"hooks-libraries\": [ ], "
-            "\"rebind-timer\": 2000, "
-            "\"renew-timer\": 1000, "
             "\"valid-lifetime\": 4000, "
             "\"subnet4\": [ ], "
             "\"dhcp-ddns\": { \"enable-updates\" : false }, "
@@ -453,6 +452,7 @@ public:
             "\"option-data\": [ ] }";
         static_cast<void>(executeConfiguration(config,
                                                "reset configuration database"));
+        CfgMgr::instance().clear();
     }
 
 
@@ -1231,8 +1231,8 @@ TEST_F(Dhcp4ParserTest, optionDefIpv4Address) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()
-        ->getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1242,7 +1242,7 @@ TEST_F(Dhcp4ParserTest, optionDefIpv4Address) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Verify that the option definition data is valid.
@@ -1273,8 +1273,8 @@ TEST_F(Dhcp4ParserTest, optionDefRecord) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1284,7 +1284,7 @@ TEST_F(Dhcp4ParserTest, optionDefRecord) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1332,10 +1332,10 @@ TEST_F(Dhcp4ParserTest, optionDefMultiple) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the option definitions do not exist yet.
-    ASSERT_FALSE(CfgMgr::instance().getCurrentCfg()->
-                 getCfgOptionDef().get("isc", 100));
-    ASSERT_FALSE(CfgMgr::instance().getCurrentCfg()->
-                 getCfgOptionDef().get("isc", 101));
+    ASSERT_FALSE(CfgMgr::instance().getStagingCfg()->
+                 getCfgOptionDef()->get("isc", 100));
+    ASSERT_FALSE(CfgMgr::instance().getStagingCfg()->
+                 getCfgOptionDef()->get("isc", 101));
 
     // Use the configuration string to create new option definitions.
     ConstElementPtr status;
@@ -1344,8 +1344,8 @@ TEST_F(Dhcp4ParserTest, optionDefMultiple) {
     checkResult(status, 0);
 
     // Check the first definition we have created.
-    OptionDefinitionPtr def1 = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def1 = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def1);
 
     // Check the option data.
@@ -1356,8 +1356,8 @@ TEST_F(Dhcp4ParserTest, optionDefMultiple) {
     EXPECT_TRUE(def1->getEncapsulatedSpace().empty());
 
     // Check the second option definition we have created.
-    OptionDefinitionPtr def2 = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 101);
+    OptionDefinitionPtr def2 = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 101);
     ASSERT_TRUE(def2);
 
     // Check the option data.
@@ -1398,8 +1398,8 @@ TEST_F(Dhcp4ParserTest, optionDefDuplicate) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the option definition does not exist yet.
-    ASSERT_FALSE(CfgMgr::instance().getCurrentCfg()->
-                 getCfgOptionDef().get("isc", 100));
+    ASSERT_FALSE(CfgMgr::instance().getStagingCfg()->
+                 getCfgOptionDef()->get("isc", 100));
 
     // Use the configuration string to create new option definitions.
     ConstElementPtr status;
@@ -1429,8 +1429,8 @@ TEST_F(Dhcp4ParserTest, optionDefArray) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1440,8 +1440,8 @@ TEST_F(Dhcp4ParserTest, optionDefArray) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1472,8 +1472,8 @@ TEST_F(Dhcp4ParserTest, optionDefEncapsulate) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1483,8 +1483,8 @@ TEST_F(Dhcp4ParserTest, optionDefEncapsulate) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1681,8 +1681,8 @@ TEST_F(Dhcp4ParserTest, optionStandardDefOverride) {
         "}";
     ElementPtr json = Element::fromJSON(config);
 
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("dhcp4", 109);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("dhcp4", 109);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1692,8 +1692,8 @@ TEST_F(Dhcp4ParserTest, optionStandardDefOverride) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("dhcp4", 109);
+    def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("dhcp4", 109);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1749,8 +1749,8 @@ TEST_F(Dhcp4ParserTest, optionStandardDefOverride) {
     // Expecting success.
     checkResult(status, 0);
 
-    def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("dhcp4", 65);
+    def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("dhcp4", 65);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1964,6 +1964,8 @@ TEST_F(Dhcp4ParserTest, optionDataEncapsulate) {
     ASSERT_TRUE(status);
     checkResult(status, 0);
 
+    CfgMgr::instance().clear();
+
     // Stage 2. Configure base option and a subnet. Please note that
     // the configuration from the stage 2 is repeated because BIND
     // configuration manager sends whole configuration for the lists
@@ -2538,6 +2540,8 @@ TEST_F(Dhcp4ParserTest, stdOptionDataEncapsulate) {
     ASSERT_TRUE(status);
     checkResult(status, 0);
 
+    CfgMgr::instance().clear();
+
     // Once the definitions have been added we can configure the
     // standard option #17. This option comprises an enterprise
     // number and sub options. By convention (introduced in
@@ -2893,6 +2897,10 @@ TEST_F(Dhcp4ParserTest, LibrariesSpecified) {
     EXPECT_TRUE(checkMarkerFile(LOAD_MARKER_FILE, "12"));
     EXPECT_FALSE(checkMarkerFileExists(UNLOAD_MARKER_FILE));
 
+    // Commit the changes so as we get the fresh configuration for the
+    // second part of this test.
+    CfgMgr::instance().commit();
+
     // Unload the libraries.  The load file should not have changed, but
     // the unload one should indicate the unload() functions have been run.
     config = buildHooksLibrariesConfig();

src/bin/dhcp4/tests/kea_controller_unittest.cc

@@ -18,6 +18,7 @@
 #include <dhcp/dhcp4.h>
 #include <dhcp4/ctrl_dhcp4_srv.h>
 #include <dhcpsrv/cfgmgr.h>
+#include <log/logger_unittest_support.h>
 
 #include <boost/scoped_ptr.hpp>
 #include <gtest/gtest.h>
@@ -57,6 +58,7 @@ public:
     }
 
     ~JSONFileBackendTest() {
+        isc::log::resetUnitTestRootLogger();
         static_cast<void>(unlink(TEST_FILE));
     };
 

src/bin/dhcp6/dhcp6_srv.cc

@@ -2444,8 +2444,8 @@ Dhcpv6Srv::unpackOptions(const OptionBuffer& buf,
         option_defs = LibDHCP::getOptionDefs(Option::V6);
     } else if (!option_space.empty()) {
         OptionDefContainerPtr option_defs_ptr =
-            CfgMgr::instance().getCurrentCfg()->getCfgOptionDef()
-            .getAll(option_space);
+            CfgMgr::instance().getCurrentCfg()->getCfgOptionDef()->
+            getAll(option_space);
         if (option_defs_ptr != NULL) {
             option_defs = *option_defs_ptr;
         }

src/bin/dhcp6/tests/config_parser_unittest.cc

@@ -302,6 +302,7 @@ public:
         try {
             ElementPtr json = Element::fromJSON(config);
             status = configureDhcp6Server(srv_, json);
+
         } catch (const std::exception& ex) {
             ADD_FAILURE() << "Unable to " << operation << ". "
                    << "The following configuration was used: " << std::endl
@@ -382,6 +383,7 @@ public:
         EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
         checkResult(x, 1);
         EXPECT_TRUE(errorContainsPosition(x, "<string>"));
+        CfgMgr::instance().clear();
     }
 
     /// @brief Test invalid option paramater value.
@@ -399,6 +401,7 @@ public:
         EXPECT_NO_THROW(x = configureDhcp6Server(srv_, json));
         checkResult(x, 1);
         EXPECT_TRUE(errorContainsPosition(x, "<string>"));
+        CfgMgr::instance().clear();
     }
 
     /// @brief Test option against given code and data.
@@ -468,11 +471,13 @@ public:
                            const size_t expected_data_len) {
         std::string config = createConfigWithOption(params);
         ASSERT_TRUE(executeConfiguration(config, "parse option configuration"));
+
         // The subnet should now hold one option with the specified code.
         Subnet::OptionDescriptor desc =
             getOptionFromSubnet(IOAddress("2001:db8:1::5"), option_code);
         ASSERT_TRUE(desc.option);
         testOption(desc, option_code, expected_data, expected_data_len);
+        CfgMgr::instance().clear();
     }
 
     int rcode_;          ///< Return code (see @ref isc::config::parseAnswer)
@@ -1466,8 +1471,8 @@ TEST_F(Dhcp6ParserTest, optionDefIpv6Address) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1476,7 +1481,7 @@ TEST_F(Dhcp6ParserTest, optionDefIpv6Address) {
     ASSERT_TRUE(status);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Verify that the option definition data is valid.
@@ -1506,8 +1511,8 @@ TEST_F(Dhcp6ParserTest, optionDefRecord) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1517,7 +1522,7 @@ TEST_F(Dhcp6ParserTest, optionDefRecord) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1564,10 +1569,10 @@ TEST_F(Dhcp6ParserTest, optionDefMultiple) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the option definitions do not exist yet.
-    ASSERT_FALSE(CfgMgr::instance().getCurrentCfg()->
-                 getCfgOptionDef().get("isc", 100));
-    ASSERT_FALSE(CfgMgr::instance().getCurrentCfg()->
-                 getCfgOptionDef().get("isc", 101));
+    ASSERT_FALSE(CfgMgr::instance().getStagingCfg()->
+                 getCfgOptionDef()->get("isc", 100));
+    ASSERT_FALSE(CfgMgr::instance().getStagingCfg()->
+                 getCfgOptionDef()->get("isc", 101));
 
     // Use the configuration string to create new option definitions.
     ConstElementPtr status;
@@ -1576,8 +1581,8 @@ TEST_F(Dhcp6ParserTest, optionDefMultiple) {
     checkResult(status, 0);
 
     // Check the first definition we have created.
-    OptionDefinitionPtr def1 = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def1 = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def1);
 
     // Check the option data.
@@ -1587,8 +1592,8 @@ TEST_F(Dhcp6ParserTest, optionDefMultiple) {
     EXPECT_FALSE(def1->getArrayType());
 
     // Check the second option definition we have created.
-    OptionDefinitionPtr def2 = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 101);
+    OptionDefinitionPtr def2 = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 101);
     ASSERT_TRUE(def2);
 
     // Check the option data.
@@ -1628,8 +1633,8 @@ TEST_F(Dhcp6ParserTest, optionDefDuplicate) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the option definition does not exist yet.
-    ASSERT_FALSE(CfgMgr::instance().getCurrentCfg()->
-                 getCfgOptionDef().get("isc", 100));
+    ASSERT_FALSE(CfgMgr::instance().getStagingCfg()->
+                 getCfgOptionDef()->get("isc", 100));
 
     // Use the configuration string to create new option definitions.
     ConstElementPtr status;
@@ -1659,8 +1664,8 @@ TEST_F(Dhcp6ParserTest, optionDefArray) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1670,7 +1675,7 @@ TEST_F(Dhcp6ParserTest, optionDefArray) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1700,8 +1705,8 @@ TEST_F(Dhcp6ParserTest, optionDefEncapsulate) {
     ElementPtr json = Element::fromJSON(config);
 
     // Make sure that the particular option definition does not exist.
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("isc", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("isc", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1711,7 +1716,7 @@ TEST_F(Dhcp6ParserTest, optionDefEncapsulate) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->getCfgOptionDef().get("isc", 100);
+    def = CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1909,8 +1914,8 @@ TEST_F(Dhcp6ParserTest, optionStandardDefOverride) {
         "}";
     ElementPtr json = Element::fromJSON(config);
 
-    OptionDefinitionPtr def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("dhcp6", 100);
+    OptionDefinitionPtr def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("dhcp6", 100);
     ASSERT_FALSE(def);
 
     // Use the configuration string to create new option definition.
@@ -1920,8 +1925,8 @@ TEST_F(Dhcp6ParserTest, optionStandardDefOverride) {
     checkResult(status, 0);
 
     // The option definition should now be available in the CfgMgr.
-    def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("dhcp6", 100);
+    def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("dhcp6", 100);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -1977,8 +1982,8 @@ TEST_F(Dhcp6ParserTest, optionStandardDefOverride) {
     // Expecting success.
     checkResult(status, 0);
 
-    def = CfgMgr::instance().getCurrentCfg()->
-        getCfgOptionDef().get("dhcp6", 59);
+    def = CfgMgr::instance().getStagingCfg()->
+        getCfgOptionDef()->get("dhcp6", 59);
     ASSERT_TRUE(def);
 
     // Check the option data.
@@ -2202,6 +2207,8 @@ TEST_F(Dhcp6ParserTest, optionDataEncapsulate) {
     ASSERT_TRUE(status);
     checkResult(status, 0);
 
+    CfgMgr::instance().clear();
+
     // Stage 2. Configure base option and a subnet. Please note that
     // the configuration from the stage 2 is repeated because BIND
     // configuration manager sends whole configuration for the lists
@@ -2395,6 +2402,8 @@ TEST_F(Dhcp6ParserTest, optionDataBoolean) {
     ASSERT_TRUE(executeConfiguration(config, "parse configuration with a"
                                      " boolean value"));
 
+    CfgMgr::instance().commit();
+
     // The subnet should now hold one option with the code 1000.
     Subnet::OptionDescriptor desc =
         getOptionFromSubnet(IOAddress("2001:db8:1::5"), 1000);
@@ -2785,6 +2794,8 @@ TEST_F(Dhcp6ParserTest, stdOptionDataEncapsulate) {
     ASSERT_TRUE(status);
     checkResult(status, 0);
 
+    CfgMgr::instance().clear();
+
     // Once the definitions have been added we can configure the
     // standard option #17. This option comprises an enterprise
     // number and sub options. By convention (introduced in
@@ -3027,6 +3038,8 @@ TEST_F(Dhcp6ParserTest, LibrariesSpecified) {
     EXPECT_TRUE(checkMarkerFile(LOAD_MARKER_FILE, "12"));
     EXPECT_FALSE(checkMarkerFileExists(UNLOAD_MARKER_FILE));
 
+    CfgMgr::instance().commit();
+
     // Unload the libraries.  The load file should not have changed, but
     // the unload one should indicate the unload() functions have been run.
     config = buildHooksLibrariesConfig();

src/bin/dhcp6/tests/kea_controller_unittest.cc

@@ -18,6 +18,7 @@
 #include <dhcp/dhcp6.h>
 #include <dhcp6/ctrl_dhcp6_srv.h>
 #include <dhcpsrv/cfgmgr.h>
+#include <log/logger_unittest_support.h>
 
 #include <boost/scoped_ptr.hpp>
 #include <gtest/gtest.h>
@@ -52,6 +53,7 @@ public:
     }
 
     ~JSONFileBackendTest() {
+        isc::log::resetUnitTestRootLogger();
         static_cast<void>(unlink(TEST_FILE));
     };
 

src/lib/dhcpsrv/cfg_option_def.h

@@ -121,6 +121,16 @@ private:
 
 };
 
+/// @name Pointers to the @c CfgOptionDef objects.
+//@{
+/// @brief Non-const pointer.
+typedef boost::shared_ptr<CfgOptionDef> CfgOptionDefPtr;
+
+/// @brief Const pointer.
+typedef boost::shared_ptr<const CfgOptionDef> ConstCfgOptionDefPtr;
+
+//@}
+
 }
 }
 

src/lib/dhcpsrv/dhcp_parsers.cc

@@ -443,7 +443,7 @@ OptionDataParser::createOption(ConstElementPtr option_data) {
         // options. They are expected to be in the global storage
         // already.
         OptionDefContainerPtr defs =
-            CfgMgr::instance().getStagingCfg()->getCfgOptionDef().getAll(space);
+            CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->getAll(space);
 
         // The getItems() should never return the NULL pointer. If there are
         // no option definitions for the particular option space a pointer
@@ -646,16 +646,15 @@ OptionDefParser::build(ConstElementPtr option_def) {
     // Create an instance of option definition.
     createOptionDef(option_def);
 
-    CfgOptionDef cfg = CfgMgr::instance().getStagingCfg()->getCfgOptionDef();
     try {
-        cfg.add(option_definition_, option_space_name_);
+        CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->
+            add(option_definition_, option_space_name_);
 
     } catch (const std::exception& ex) {
-        // Append position
+        // Append position if there is a failure.
         isc_throw(DhcpConfigError, ex.what() << " ("
                   << option_def->getPosition() << ")");
     }
-    CfgMgr::instance().getStagingCfg()->setCfgOptionDef(cfg);
 }
 
 void
@@ -1044,7 +1043,7 @@ SubnetConfigParser::appendSubOptions(const std::string& option_space,
         }
     } else {
         OptionDefContainerPtr defs = CfgMgr::instance().getStagingCfg()
-            ->getCfgOptionDef().getAll(option_space);
+            ->getCfgOptionDef()->getAll(option_space);
 
         const OptionDefContainerTypeIndex& idx = defs->get<1>();
         const OptionDefContainerTypeRange& range =

src/lib/dhcpsrv/srv_config.cc

@@ -25,11 +25,11 @@ namespace isc {
 namespace dhcp {
 
 SrvConfig::SrvConfig()
-    : sequence_(0) {
+    : sequence_(0), cfg_option_def_(new CfgOptionDef()) {
 }
 
 SrvConfig::SrvConfig(uint32_t sequence)
-    : sequence_(sequence) {
+    : sequence_(sequence), cfg_option_def_(new CfgOptionDef()) {
 }
 
 std::string
@@ -89,7 +89,7 @@ SrvConfig::copy(SrvConfig& new_config) const {
     // Replace interface configuration.
     new_config.setCfgIface(cfg_iface_);
     // Replace option definitions.
-    new_config.setCfgOptionDef(cfg_option_def_);
+    new_config.setCfgOptionDef(*cfg_option_def_);
 }
 
 void
@@ -134,7 +134,7 @@ SrvConfig::equals(const SrvConfig& other) const {
     }
     // Logging information is equal between objects, so check other values.
     return ((cfg_iface_ == other.cfg_iface_) &&
-            (cfg_option_def_ == other.cfg_option_def_));
+            (*cfg_option_def_ == *other.cfg_option_def_));
 }
 
 }

src/lib/dhcpsrv/srv_config.h

@@ -141,13 +141,25 @@ public:
         cfg_iface_ = cfg_iface;
     }
 
-    /// @brief Returns object which represents user-defined option definitions.
+    /// @brief Return pointer to non-const object representing user-defined
+    /// option definitions.
     ///
-    /// This function returns a reference to the object which represents the
+    /// This function returns a pointer to the object which represents the
+    /// user defined option definitions grouped by option space name.
+    ///
+    /// @return Pointer to an object holding option definitions.
+    CfgOptionDefPtr getCfgOptionDef() {
+        return (cfg_option_def_);
+    }
+
+    /// @brief Returns pointer to the const object representing user-defined
+    /// option definitions.
+    ///
+    /// This function returns a pointer to the object which represents the
     /// user defined option definitions grouped by option space name.
     ///
-    /// @return Reference to an object holding option definitions.
-    const CfgOptionDef& getCfgOptionDef() const {
+    /// @return Pointer to an object holding option definitions.
+    ConstCfgOptionDefPtr getCfgOptionDef() const {
         return (cfg_option_def_);
     }
 
@@ -155,7 +167,7 @@ public:
     ///
     /// @param cfg_option_def New object representing option definitions.
     void setCfgOptionDef(const CfgOptionDef& cfg_option_def) {
-        cfg_option_def_ = cfg_option_def;
+        *cfg_option_def_ = cfg_option_def;
     }
 
     //@}
@@ -239,11 +251,11 @@ private:
     /// queries.
     CfgIface cfg_iface_;
 
-    /// @brief Option definitions configuration.
+    /// @brief Pointer to option definitions configuration.
     ///
     /// This object holds the user-defined option definitions grouped
     /// by option space name.
-    CfgOptionDef cfg_option_def_;
+    CfgOptionDefPtr cfg_option_def_;
 
 };
 

src/lib/dhcpsrv/tests/dhcp_parsers_unittest.cc

@@ -536,7 +536,7 @@ TEST_F(ParseConfigTest, basicOptionDefTest) {
 
     // Verify that the option definition can be retrieved.
     OptionDefinitionPtr def =
-        CfgMgr::instance().getStagingCfg()->getCfgOptionDef().get("isc", 100);
+        CfgMgr::instance().getStagingCfg()->getCfgOptionDef()->get("isc", 100);
     ASSERT_TRUE(def);
 
     // Verify that the option definition is correct.