[4106_update] Addressed last comments

src/bin/dhcp4/Makefile.am

@@ -62,7 +62,7 @@ libdhcp4_la_SOURCES += ctrl_dhcp4_srv.cc ctrl_dhcp4_srv.h
 libdhcp4_la_SOURCES += json_config_parser.cc json_config_parser.h
 libdhcp4_la_SOURCES += dhcp4_log.cc dhcp4_log.h
 libdhcp4_la_SOURCES += dhcp4_srv.cc dhcp4_srv.h
-libdhcp4_la_SOURCES += dhcp4_dhcp4o6_ipc.cc dhcp4_dhcp4o6_ipc.h
+libdhcp4_la_SOURCES += dhcp4to6_ipc.cc dhcp4to6_ipc.h
 
 libdhcp4_la_SOURCES += kea_controller.cc
 

src/bin/dhcp4/ctrl_dhcp4_srv.cc

@@ -8,7 +8,7 @@
 #include <cc/data.h>
 #include <dhcp4/ctrl_dhcp4_srv.h>
 #include <dhcp4/dhcp4_log.h>
-#include <dhcp4/dhcp4_dhcp4o6_ipc.h>
+#include <dhcp4/dhcp4to6_ipc.h>
 #include <hooks/hooks_manager.h>
 #include <dhcp4/json_config_parser.h>
 #include <dhcpsrv/cfgmgr.h>

src/bin/dhcp4/dhcp4_dhcp4o6_ipc.cc

@@ -9,7 +9,7 @@
 #include <util/buffer.h>
 #include <dhcp/iface_mgr.h>
 #include <dhcpsrv/cfgmgr.h>
-#include <dhcp4/dhcp4_dhcp4o6_ipc.h>
+#include <dhcp4/dhcp4to6_ipc.h>
 
 using namespace std;
 

src/bin/dhcp4/dhcp4_dhcp4o6_ipc.h

@@ -4,10 +4,10 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-#ifndef DHCP4_DHCP4O6_IPC_H
-#define DHCP4_DHCP4O6_IPC_H
+#ifndef DHCP4TO6_IPC_H
+#define DHCP4TO6_IPC_H
 
-/// @file dhcp4_dhcp4o6_ipc.h Defines the Dhcp4o6Ipc class.
+/// @file dhcp4to6_ipc.h Defines the Dhcp4o6Ipc class.
 /// This file defines the class Kea uses to act as the DHCPv4 server
 /// side of DHCPv4-over-DHCPv6 communication between servers.
 ///

src/bin/dhcp4/tests/Makefile.am

@@ -93,7 +93,7 @@ dhcp4_unittests_SOURCES += release_unittest.cc
 dhcp4_unittests_SOURCES += out_of_range_unittest.cc
 dhcp4_unittests_SOURCES += decline_unittest.cc
 dhcp4_unittests_SOURCES += kea_controller_unittest.cc
-dhcp4_unittests_SOURCES += dhcp4o6_ipc_unittest.cc
+dhcp4_unittests_SOURCES += dhcp4to6_ipc_unittest.cc
 
 nodist_dhcp4_unittests_SOURCES = marker_file.h test_libraries.h
 

src/bin/dhcp4/tests/dhcp4o6_ipc_unittest.cc

@@ -9,7 +9,7 @@
 #include <dhcp/pkt4o6.h>
 #include <dhcp/pkt6.h>
 #include <dhcp/tests/iface_mgr_test_config.h>
-#include <dhcp4/dhcp4_dhcp4o6_ipc.h>
+#include <dhcp4/dhcp4to6_ipc.h>
 #include <dhcpsrv/cfgmgr.h>
 #include <dhcpsrv/testutils/dhcp4o6_test_ipc.h>
 #include <gtest/gtest.h>

src/bin/dhcp6/Makefile.am

@@ -63,7 +63,7 @@ libdhcp6_la_SOURCES += dhcp6_log.cc dhcp6_log.h
 libdhcp6_la_SOURCES += dhcp6_srv.cc dhcp6_srv.h
 libdhcp6_la_SOURCES += ctrl_dhcp6_srv.cc ctrl_dhcp6_srv.h
 libdhcp6_la_SOURCES += json_config_parser.cc json_config_parser.h
-libdhcp6_la_SOURCES += dhcp6_dhcp4o6_ipc.cc dhcp6_dhcp4o6_ipc.h
+libdhcp6_la_SOURCES += dhcp6to4_ipc.cc dhcp6to4_ipc.h
 
 libdhcp6_la_SOURCES += kea_controller.cc
 

src/bin/dhcp6/ctrl_dhcp6_srv.cc

@@ -11,7 +11,7 @@
 #include <dhcpsrv/cfgmgr.h>
 #include <dhcpsrv/cfg_db_access.h>
 #include <dhcp6/ctrl_dhcp6_srv.h>
-#include <dhcp6/dhcp6_dhcp4o6_ipc.h>
+#include <dhcp6/dhcp6to4_ipc.h>
 #include <dhcp6/dhcp6_log.h>
 #include <dhcp6/json_config_parser.h>
 #include <hooks/hooks_manager.h>

src/bin/dhcp6/dhcp6_srv.cc

@@ -25,7 +25,7 @@
 #include <dhcp/option_vendor_class.h>
 #include <dhcp/option_int_array.h>
 #include <dhcp/pkt6.h>
-#include <dhcp6/dhcp6_dhcp4o6_ipc.h>
+#include <dhcp6/dhcp6to4_ipc.h>
 #include <dhcp6/dhcp6_log.h>
 #include <dhcp6/dhcp6_srv.h>
 #include <dhcpsrv/callout_handle_store.h>

src/bin/dhcp6/dhcp6_dhcp4o6_ipc.cc

@@ -9,7 +9,7 @@
 #include <util/buffer.h>
 #include <dhcp/iface_mgr.h>
 #include <dhcpsrv/cfgmgr.h>
-#include <dhcp6/dhcp6_dhcp4o6_ipc.h>
+#include <dhcp6/dhcp6to4_ipc.h>
 
 using namespace std;
 

src/bin/dhcp6/dhcp6_dhcp4o6_ipc.h

@@ -4,10 +4,10 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-#ifndef DHCP6_DHCP4O6_IPC_H
-#define DHCP6_DHCP4O6_IPC_H
+#ifndef DHCP6TO4_IPC_H
+#define DHCP6TO4_IPC_H
 
-/// @file dhcp6_dhcp4o6_ipc.h Defines the Dhcp6to4Ipc class.
+/// @file dhcp6to4_ipc.h Defines the Dhcp6to4Ipc class.
 /// This file defines the class Kea uses to act as the DHCPv6 server
 /// side of DHCPv4-over-DHCPv6 communication between servers.
 ///

src/bin/dhcp6/tests/Makefile.am

@@ -95,7 +95,7 @@ dhcp6_unittests_SOURCES += infrequest_unittest.cc
 dhcp6_unittests_SOURCES += decline_unittest.cc
 dhcp6_unittests_SOURCES += dhcp6_message_test.cc dhcp6_message_test.h
 dhcp6_unittests_SOURCES += kea_controller_unittest.cc
-dhcp6_unittests_SOURCES += dhcp4o6_ipc_unittest.cc
+dhcp6_unittests_SOURCES += dhcp6to4_ipc_unittest.cc
 
 nodist_dhcp6_unittests_SOURCES  = marker_file.h test_libraries.h
 

src/bin/dhcp6/tests/dhcp4o6_ipc_unittest.cc

@@ -10,7 +10,7 @@
 #include <dhcp/iface_mgr.h>
 #include <dhcp/tests/iface_mgr_test_config.h>
 #include <dhcp/tests/pkt_filter6_test_stub.h>
-#include <dhcp6/dhcp6_dhcp4o6_ipc.h>
+#include <dhcp6/dhcp6to4_ipc.h>
 #include <dhcpsrv/cfgmgr.h>
 #include <dhcpsrv/testutils/dhcp4o6_test_ipc.h>
 #include <gtest/gtest.h>
@@ -51,6 +51,9 @@ public:
 
     /// @brief Creates an instance of the DHCPv4o6 Message option.
     ///
+    /// The option will contain an empty DHCPREQUEST message, with
+    /// just the Message Type option inside and nothing else.
+    ///
     /// @return Pointer to the instance of the DHCPv4-query Message option.
     OptionPtr createDHCPv4MsgOption() const;
 

src/lib/dhcpsrv/dhcp4o6_ipc.cc

@@ -13,7 +13,10 @@
 #include <dhcp/option_string.h>
 #include <dhcp/option_vendor.h>
 #include <dhcpsrv/dhcp4o6_ipc.h>
+#include <dhcpsrv/dhcpsrv_log.h>
+
 #include <boost/pointer_cast.hpp>
+
 #include <errno.h>
 #include <netinet/in.h>
 #include <sys/fcntl.h>
@@ -151,6 +154,8 @@ Pkt6Ptr Dhcp4o6IpcBase::receive() {
          
     // Vendor option must exist.
     if (!option_vendor) {
+        LOG_WARN(dhcpsrv_logger, DHCPSRV_DHCP4O6_RECEIVED_BAD_PACKET)
+            .arg("no ISC vendor option");
         isc_throw(Dhcp4o6IpcError, "option " << D6O_VENDOR_OPTS
                   << " with ISC enterprise id is not present in the DHCP4o6"
                   " message sent between the servers");
@@ -160,6 +165,8 @@ Pkt6Ptr Dhcp4o6IpcBase::receive() {
     OptionStringPtr ifname = boost::dynamic_pointer_cast<
         OptionString>(option_vendor->getOption(ISC_V6_4O6_INTERFACE));
     if (!ifname) {
+        LOG_WARN(dhcpsrv_logger, DHCPSRV_DHCP4O6_RECEIVED_BAD_PACKET)
+            .arg("no interface suboption");
         isc_throw(Dhcp4o6IpcError, "option " << D6O_VENDOR_OPTS
                   << " doesn't contain the " << ISC_V6_4O6_INTERFACE
                   << " option required in the DHCP4o6 message sent"
@@ -169,6 +176,8 @@ Pkt6Ptr Dhcp4o6IpcBase::receive() {
     // Check if this interface is present in the system.
     IfacePtr iface = IfaceMgr::instance().getIface(ifname->getValue());
     if (!iface) {
+        LOG_WARN(dhcpsrv_logger, DHCPSRV_DHCP4O6_RECEIVED_BAD_PACKET)
+            .arg("can't get interface " + ifname->getValue());
         isc_throw(Dhcp4o6IpcError, "option " << ISC_V6_4O6_INTERFACE
                   << " sent in the DHCP4o6 message contains non-existing"
                   " interface name '" << ifname->getValue() << "'");
@@ -178,6 +187,8 @@ Pkt6Ptr Dhcp4o6IpcBase::receive() {
     OptionCustomPtr srcs = boost::dynamic_pointer_cast<
         OptionCustom>(option_vendor->getOption(ISC_V6_4O6_SRC_ADDRESS));
     if (!srcs) {
+        LOG_WARN(dhcpsrv_logger, DHCPSRV_DHCP4O6_RECEIVED_BAD_PACKET)
+            .arg("no source address suboption");
         isc_throw(Dhcp4o6IpcError, "option " << D6O_VENDOR_OPTS
                   << " doesn't contain the " << ISC_V6_4O6_SRC_ADDRESS
                   << " option required in the DHCP4o6 message sent"

src/lib/dhcpsrv/dhcp4o6_ipc.h

@@ -84,6 +84,7 @@ protected:
     /// @param endpoint_type Endpoint type (DHCPv4 or DHCPv6 server).
     ///
     /// @return New socket descriptor.
+    /// @throw isc::dhcp::Dhcp4o6IpcError on system call errors.
     int open(uint16_t port, EndpointType endpoint_type);
 
 public:
@@ -98,6 +99,8 @@ public:
     ///
     /// @return a pointer to a DHCPv6 message with interface and remote
     /// address set from the IPC message
+    /// @throw isc::dhcp::Dhcp4o6IpcError on system call error or
+    /// malformed packets.
     Pkt6Ptr receive();
 
     /// @brief Send message over IPC.
@@ -110,6 +113,7 @@ public:
     ///
     /// @param pkt Pointer to a DHCPv6 message with interface and remote
     /// address.
+    /// @throw isc::dhcp::Dhcp4o6IpcError.
     void send(const Pkt6Ptr& pkt);
 
 protected: