[1545] Minor tidy-up of DHCP4 server logging code

src/bin/dhcp4/ctrl_dhcp4_srv.cc

@@ -13,20 +13,21 @@
 // PERFORMANCE OF THIS SOFTWARE.
 
 #include <config.h>
+
 #include <cassert>
 #include <iostream>
 
-#include <cc/session.h>
+#include <asiolink/asiolink.h>
 #include <cc/data.h>
-#include <exceptions/exceptions.h>
+#include <cc/session.h>
 #include <cc/session.h>
 #include <config/ccsession.h>
-#include <util/buffer.h>
-#include <dhcp4/spec_config.h>
 #include <dhcp4/ctrl_dhcp4_srv.h>
 #include <dhcp4/dhcp4_log.h>
+#include <dhcp4/spec_config.h>
 #include <dhcp/iface_mgr.h>
-#include <asiolink/asiolink.h>
+#include <exceptions/exceptions.h>
+#include <util/buffer.h>
 
 using namespace isc::asiolink;
 using namespace isc::cc;
@@ -55,6 +56,7 @@ ConstElementPtr
 ControlledDhcpv4Srv::dhcp4CommandHandler(const string& command, ConstElementPtr args) {
     LOG_DEBUG(dhcp4_logger, DBG_DHCP4_COMMAND, DHCP4_COMMAND_RECEIVED)
               .arg(command).arg(args->str());
+
     if (command == "shutdown") {
         if (ControlledDhcpv4Srv::server_) {
             ControlledDhcpv4Srv::server_->shutdown();

src/bin/dhcp4/dhcp4_messages.mes

@@ -44,19 +44,9 @@ the packet is invalid is include in the message.
 
 % DHCP4_PACKET_RECEIVED %1 (type %2) packet received on interface %3
 A debug message noting that the server has received the specified type of packet
-on the specified interface.
-
-% DHCP4_PACKET_RELEASE RELEASE packet received on interface %1
-The server has received a RELEASE packet on the specified interface.
-
-% DHCP4_PACKET_REQUEST REQUEST packet received on interface %1
-The server has received a REQUEST packet on the specified interface.
-
-% DHCP4_PACKET_UNKNOWN unknown packet type (%1) received on interface %2
-Debug message indicating that the server has received an unknown packet type
-on the specified interface.  The type code is given in the message.  Note that
-this message will also be output if the server receives packet which is valid,
-but which should not be sent to the server (e.g. an OFFER or ACK).
+on the specified interface.  Note that a packet marked as UNKNOWN may well be
+a valid DHCP packet, just a type not expected by the server (e.g. it will
+report a received OFFER packet as UNKNOWN).
 
 % DHCP4_PACK_FAIL failed to assemble message to be returned correctly
 This error is output if the server failed to assemble the data to be returned to the client into

src/bin/dhcp4/dhcp4_srv.cc

@@ -86,7 +86,7 @@ Dhcpv4Srv::run() {
                           DHCP4_PACKET_PARSE_FAIL).arg(e.what());
                 continue;
             }
-            LOG_DEBUG(dhcp4_logger, DBG_DHCP4_DETAIL, DHCP4_PACKET_UNKNOWN)
+            LOG_DEBUG(dhcp4_logger, DBG_DHCP4_DETAIL, DHCP4_PACKET_RECEIVED)
                       .arg(serverReceivedPacketName(query->getType()))
                       .arg(query->getType())
                       .arg(query->getIface());
@@ -139,10 +139,12 @@ Dhcpv4Srv::run() {
                 LOG_DEBUG(dhcp4_logger, DBG_DHCP4_DETAIL_DATA,
                           DHCP4_RESPONSE_DATA)
                           .arg(rsp->getType()).arg(rsp->toText());
-                if (!rsp->pack()) {
+
+                if (rsp->pack()) {
+                    IfaceMgr::instance().send(rsp);
+                } else {
                     LOG_ERROR(dhcp4_logger, DHCP4_PACK_FAIL);
                 }
-                IfaceMgr::instance().send(rsp);
             }
         }
 

src/bin/dhcp4/tests/dhcp4_test.py

@@ -27,7 +27,7 @@ import fcntl
 
 class TestDhcpv4Daemon(unittest.TestCase):
     def setUp(self):
-        # don't redirect stdout/stderr here as we want to print out things
+        # Don't redirect stdout/stderr here as we want to print out things
         # during the test
         #
         # However, we do want to set the logging lock directory to somewhere
@@ -152,7 +152,7 @@ class TestDhcpv4Daemon(unittest.TestCase):
     def test_portnumber_missing(self):
         print("Check that -p option requires a parameter.")
 
-        (returncode, output, error) = self.runCommand(['../b10-dhcp4', '-v', '-p'])
+        (returncode, output, error) = self.runCommand(['../b10-dhcp4', '-p'])
 
         # When invalid port number is specified, return code must not be success
         self.assertTrue(returncode != 0)
@@ -163,7 +163,7 @@ class TestDhcpv4Daemon(unittest.TestCase):
     def test_portnumber_invalid1(self):
         print("Check that -p option is check against bogus port number (999999).")
 
-        (returncode, output, error) = self.runCommand(['../b10-dhcp4', '-v', '-p','999999'])
+        (returncode, output, error) = self.runCommand(['../b10-dhcp4', '-p','999999'])
 
         # When invalid port number is specified, return code must not be success
         self.assertTrue(returncode != 0)
@@ -174,7 +174,7 @@ class TestDhcpv4Daemon(unittest.TestCase):
     def test_portnumber_invalid2(self):
         print("Check that -p option is check against bogus port number (123garbage).")
 
-        (returncode, output, error) = self.runCommand(['../b10-dhcp4', '-v', '-p','123garbage'])
+        (returncode, output, error) = self.runCommand(['../b10-dhcp4', '-p','123garbage'])
 
         # When invalid port number is specified, return code must not be success
         self.assertTrue(returncode != 0)