[master] Merge branch 'trac3299'

b10-dhcp-ddns uses lease length as TTL in DNS update RRsets.

src/bin/d2/nc_add.cc

@@ -1,4 +1,4 @@
-// Copyright (C) 2013 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014 Internet Systems Consortium, Inc. ("ISC")
 //
 // Permission to use, copy, modify, and/or distribute this software for any
 // purpose with or without fee is hereby granted, provided that the above
@@ -588,10 +588,13 @@ NameAddTransaction::buildAddFwdAddressRequest() {
 
     // Next build the Update Section.
 
+    // Create the TTL based on lease length.
+    dns::RRTTL lease_ttl(getNcr()->getLeaseLength());
+
     // Create the FQDN/IP 'add' RR and add it to the to update section.
     // Based on RFC 2136, section 2.5.1
     dns::RRsetPtr update(new dns::RRset(fqdn, dns::RRClass::IN(),
-                         getAddressRRType(), dns::RRTTL(0)));
+                         getAddressRRType(), lease_ttl));
 
     addLeaseAddressRdata(update);
     request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
@@ -599,7 +602,7 @@ NameAddTransaction::buildAddFwdAddressRequest() {
     // Now create the FQDN/DHCID 'add' RR and add it to update section.
     // Based on RFC 2136, section 2.5.1
     update.reset(new dns::RRset(fqdn, dns::RRClass::IN(),
-                                dns::RRType::DHCID(), dns::RRTTL(0)));
+                                dns::RRType::DHCID(), lease_ttl));
     addDhcidRdata(update);
     request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
 
@@ -635,6 +638,9 @@ NameAddTransaction::buildReplaceFwdAddressRequest() {
 
     // Next build the Update Section.
 
+    // Create the TTL based on lease length.
+    dns::RRTTL lease_ttl(getNcr()->getLeaseLength());
+
     // Create the FQDN/IP 'delete' RR and add it to the update section.
     // Based on RFC 2136, section 2.5.2
     dns::RRsetPtr update(new dns::RRset(fqdn, dns::RRClass::ANY(),
@@ -644,7 +650,7 @@ NameAddTransaction::buildReplaceFwdAddressRequest() {
     // Create the FQDN/IP 'add' RR and add it to the update section.
     // Based on RFC 2136, section 2.5.1
     update.reset(new dns::RRset(fqdn, dns::RRClass::IN(),
-                                getAddressRRType(), dns::RRTTL(0)));
+                                getAddressRRType(), lease_ttl));
     addLeaseAddressRdata(update);
     request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
 
@@ -661,6 +667,9 @@ NameAddTransaction::buildReplaceRevPtrsRequest() {
     std::string rev_addr = D2CfgMgr::reverseIpAddress(getNcr()->getIpAddress());
     dns::Name rev_ip(rev_addr);
 
+    // Create the TTL based on lease length.
+    dns::RRTTL lease_ttl(getNcr()->getLeaseLength());
+
     // Content on this request is based on RFC 4703, section 5.4
     // Reverse replacement has no prerequisites so straight on to
     // building the Update section.
@@ -678,14 +687,14 @@ NameAddTransaction::buildReplaceRevPtrsRequest() {
     // Create the FQDN/IP PTR 'add' RR, add the FQDN as the PTR Rdata
     // then add it to update section.
     update.reset(new dns::RRset(rev_ip, dns::RRClass::IN(),
-                                dns::RRType::PTR(), dns::RRTTL(0)));
+                                dns::RRType::PTR(), lease_ttl));
     addPtrRdata(update);
     request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
 
     // Create the FQDN/IP PTR 'add' RR, add the DHCID Rdata
     // then add it to update section.
     update.reset(new dns::RRset(rev_ip, dns::RRClass::IN(),
-                                dns::RRType::DHCID(), dns::RRTTL(0)));
+                                dns::RRType::DHCID(), lease_ttl));
     addDhcidRdata(update);
     request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
 

src/bin/d2/tests/nc_test_utils.cc

@@ -427,15 +427,19 @@ void checkAddFwdAddressRequest(NameChangeTransaction& tran) {
     // Should be 2 RRs: 1 to add the FQDN/IP and one to add the DHCID RR
     checkRRCount(request, D2UpdateMessage::SECTION_UPDATE, 2);
 
+    // Fetch ttl.
+    uint32_t ttl = ncr->getLeaseLength();
+
     // First, Verify the FQDN/IP add RR.
     ASSERT_TRUE(rrset = getRRFromSection(request, D2UpdateMessage::
                                                   SECTION_UPDATE, 0));
-    checkRR(rrset, exp_fqdn, dns::RRClass::IN(), exp_ip_rr_type, 0, ncr);
+    checkRR(rrset, exp_fqdn, dns::RRClass::IN(), exp_ip_rr_type, ttl, ncr);
 
     // Now, verify the DHCID add RR.
     ASSERT_TRUE(rrset = getRRFromSection(request, D2UpdateMessage::
                                                   SECTION_UPDATE, 1));
-    checkRR(rrset, exp_fqdn, dns::RRClass::IN(), dns::RRType::DHCID(), 0, ncr);
+    checkRR(rrset, exp_fqdn, dns::RRClass::IN(), dns::RRType::DHCID(),
+            ttl, ncr);
 
     // Verify there are no RRs in the ADDITIONAL Section.
     checkRRCount(request, D2UpdateMessage::SECTION_ADDITIONAL, 0);
@@ -483,6 +487,9 @@ void checkReplaceFwdAddressRequest(NameChangeTransaction& tran) {
     // adds the new one.
     checkRRCount(request, D2UpdateMessage::SECTION_UPDATE, 2);
 
+    // Fetch ttl.
+    uint32_t ttl = ncr->getLeaseLength();
+
     // Verify the FQDN delete RR.
     ASSERT_TRUE(rrset = getRRFromSection(request, D2UpdateMessage::
                                                   SECTION_UPDATE, 0));
@@ -491,7 +498,7 @@ void checkReplaceFwdAddressRequest(NameChangeTransaction& tran) {
     // Verify the FQDN/IP add RR.
     ASSERT_TRUE(rrset = getRRFromSection(request, D2UpdateMessage::
                                                   SECTION_UPDATE, 1));
-    checkRR(rrset, exp_fqdn, dns::RRClass::IN(), exp_ip_rr_type, 0, ncr);
+    checkRR(rrset, exp_fqdn, dns::RRClass::IN(), exp_ip_rr_type, ttl, ncr);
 
     // Verify there are no RRs in the ADDITIONAL Section.
     checkRRCount(request, D2UpdateMessage::SECTION_ADDITIONAL, 0);
@@ -520,6 +527,9 @@ void checkReplaceRevPtrsRequest(NameChangeTransaction& tran) {
     // Verify there are no RRs in the PREREQUISITE Section.
     checkRRCount(request, D2UpdateMessage::SECTION_PREREQUISITE, 0);
 
+    // Fetch ttl.
+    uint32_t ttl = ncr->getLeaseLength();
+
     // Verify the UPDATE Section.
     // It should contain 4 RRs:
     // 1. A delete all PTR RRs for the given IP
@@ -545,13 +555,13 @@ void checkReplaceRevPtrsRequest(NameChangeTransaction& tran) {
     ASSERT_TRUE(rrset = getRRFromSection(request, D2UpdateMessage::
                                                   SECTION_UPDATE, 2));
     checkRR(rrset, exp_rev_addr, dns::RRClass::IN(), dns::RRType::PTR(),
-            0, ncr);
+            ttl, ncr);
 
     // Verify the DHCID add RR.
     ASSERT_TRUE(rrset = getRRFromSection(request, D2UpdateMessage::
                                                   SECTION_UPDATE, 3));
     checkRR(rrset, exp_rev_addr, dns::RRClass::IN(), dns::RRType::DHCID(),
-            0, ncr);
+            ttl, ncr);
 
     // Verify there are no RRs in the ADDITIONAL Section.
     checkRRCount(request, D2UpdateMessage::SECTION_ADDITIONAL, 0);