[#2677] Ignore invalid renew-timer values

src/lib/dhcpsrv/dhcpsrv_messages.*
    DHCPSRV_CFGMGR_RENEW_GTR_REBIND - new message

src/lib/dhcpsrv/network.h
    Added Network::getLabel()

src/lib/dhcpsrv/parsers/base_network_parser.cc
    BaseNetworkParser::parseCommon() - log renew > rebind
    rather than throw

src/lib/dhcpsrv/parsers/dhcp_parsers.cc
    Subnet4ConfigParser::initSubnet() - removed duplicate timer check
    Subnet6ConfigParser::initSubnet() - removed duplicate timer check

src/lib/dhcpsrv/shared_network.h
    Added SharedNetwork4::getLabel()
    Added SharedNetwork6::getLabel()

src/lib/dhcpsrv/subnet.h
    Added Subnet::getLabel()

src/lib/dhcpsrv/tests/cfg_subnets4_unittest.cc
    TEST_F(Subnet4ParserTest, parseWithInvalidRenewRebind) - new test

src/lib/dhcpsrv/tests/cfg_subnets6_unittest.cc
    TEST_F(Subnet4ParserTest, parseWithInvalidRenewRebind) - new test

src/lib/dhcpsrv/tests/shared_network_parser_unittest.cc
    Updated tests

1 files changed, 6 insertions, 0 deletions

diff --git a/src/lib/dhcpsrv/subnet.h b/src/lib/dhcpsrv/subnet.h
index 0521a5fbee..3e0291a4d5 100644
--- a/src/lib/dhcpsrv/subnet.h
+++ b/src/lib/dhcpsrv/subnet.h
@@ -422,6 +422,12 @@ protected:
     /// @return A pointer to unparsed subnet configuration.
     virtual data::ElementPtr toElement() const;
 
+    virtual std::string getLabel() const {
+        std::stringstream ss;
+        ss << "subnet-id " << id_;
+        return (ss.str());
+    }
+
     /// @brief Converts subnet prefix to a pair of prefix/length pair.
     ///
     /// IPv4 and IPv6 specific conversion functions should apply extra checks