[#2819] kea-dhcp4 supports ddns-ttl, min, and max

Added support for ddns-ttl,ddns-ttl-min, and ddsn-ttl-max
to global,shared-network, and subnet for kea-dhcp4

Changes to be committed:
modified:   doc/examples/kea4/all-keys.json
modified:   src/bin/dhcp4/dhcp4_lexer.cc
modified:   src/bin/dhcp4/dhcp4_lexer.ll
modified:   src/bin/dhcp4/dhcp4_parser.cc
modified:   src/bin/dhcp4/dhcp4_parser.h
modified:   src/bin/dhcp4/dhcp4_parser.yy
modified:   src/bin/dhcp4/json_config_parser.cc
modified:   src/bin/dhcp4/tests/config_parser_unittest.cc
modified:   src/bin/dhcp4/tests/fqdn_unittest.cc
modified:   src/bin/dhcp4/tests/get_config_unittest.cc
modified:   src/bin/dhcp6/json_config_parser.cc
modified:   src/lib/dhcpsrv/cb_ctl_dhcp4.cc
modified:   src/lib/dhcpsrv/cb_ctl_dhcp6.cc
modified:   src/lib/dhcpsrv/cfg_globals.cc
modified:   src/lib/dhcpsrv/cfg_globals.h
modified:   src/lib/dhcpsrv/dhcpsrv_messages.cc
modified:   src/lib/dhcpsrv/dhcpsrv_messages.h
modified:   src/lib/dhcpsrv/dhcpsrv_messages.mes
modified:   src/lib/dhcpsrv/ncr_generator.cc
modified:   src/lib/dhcpsrv/ncr_generator.h
modified:   src/lib/dhcpsrv/network.cc
modified:   src/lib/dhcpsrv/network.h
modified:   src/lib/dhcpsrv/parsers/base_network_parser.cc
modified:   src/lib/dhcpsrv/parsers/simple_parser4.cc
modified:   src/lib/dhcpsrv/parsers/simple_parser6.cc
modified:   src/lib/dhcpsrv/srv_config.cc
modified:   src/lib/dhcpsrv/srv_config.h
modified:   src/lib/dhcpsrv/tests/dhcp_parsers_unittest.cc
modified:   src/lib/dhcpsrv/tests/ncr_generator_unittest.cc
modified:   src/lib/dhcpsrv/tests/network_unittest.cc
modified:   src/lib/dhcpsrv/tests/shared_network_parser_unittest.cc
modified:   src/lib/dhcpsrv/tests/srv_config_unittest.cc
modified:   src/lib/util/str.cc
modified:   src/lib/util/str.h

1 files changed, 7 insertions, 1 deletions

diff --git a/src/bin/dhcp4/json_config_parser.cc b/src/bin/dhcp4/json_config_parser.cc
index 5ec39ef115..46e10d4a64 100644
--- a/src/bin/dhcp4/json_config_parser.cc
+++ b/src/bin/dhcp4/json_config_parser.cc
@@ -195,6 +195,9 @@ public:
         /// Global lifetime sanity checks
         cfg->sanityChecksLifetime("valid-lifetime");
 
+        /// Sanity check global ddns-ttl parameters
+        cfg->sanityChecksDdnsTtlParameters();
+
         /// Shared network sanity checks
         const SharedNetwork4Collection* networks = cfg->getCfgSharedNetworks4()->getAll();
         if (networks) {
@@ -673,7 +676,10 @@ processDhcp4Config(isc::data::ConstElementPtr config_set) {
                  (config_pair.first == "parked-packet-limit") ||
                  (config_pair.first == "allocator") ||
                  (config_pair.first == "offer-lifetime") ||
-                 (config_pair.first == "stash-agent-options") ) {
+                 (config_pair.first == "ddns-ttl") ||
+                 (config_pair.first == "ddns-ttl-min") ||
+                 (config_pair.first == "ddns-ttl-max") ||
+                 (config_pair.first == "stash-agent-options")) {
                 CfgMgr::instance().getStagingCfg()->addConfiguredGlobal(config_pair.first,
                                                                         config_pair.second);
                 continue;