[3222] Made b10-dhcp-ddns server matching case insensitve

The method used in D2 to match a FQDN (or reverse IP addrss)
to a list of servers, DdnsDomainListMgr::matchDomain(), was
made case insensitive.

src/bin/d2/d2_config.cc

@@ -20,6 +20,7 @@
 
 #include <boost/foreach.hpp>
 #include <boost/lexical_cast.hpp>
+#include <boost/algorithm/string/predicate.hpp>
 
 #include <string>
 
@@ -131,7 +132,7 @@ DdnsDomainListMgr::matchDomain(const std::string& fqdn, DdnsDomainPtr& domain) {
 
         // If the lengths are identical and the names match we're done.
         if (req_len == dom_len) {
-            if (fqdn == domain_name) {
+            if (boost::iequals(fqdn,domain_name)) {
                 // exact match, done
                 domain = map_pair.second;
                 return (true);
@@ -143,7 +144,7 @@ DdnsDomainListMgr::matchDomain(const std::string& fqdn, DdnsDomainPtr& domain) {
             // prevents "onetwo.net" from matching "two.net".
             size_t offset = req_len - dom_len;
             if ((fqdn[offset - 1] == '.')  &&
-               (fqdn.compare(offset, std::string::npos, domain_name) == 0)) {
+               (boost::iequals(fqdn.substr(offset), domain_name))) {
                 // Fqdn contains domain name, keep it if its better than
                 // any we have matched so far.
                 if (dom_len > match_len) {

src/bin/d2/tests/d2_cfg_mgr_unittests.cc

@@ -1066,6 +1066,10 @@ TEST_F(D2CfgMgrTest, forwardMatch) {
     EXPECT_TRUE(cfg_mgr_->matchForward("tmark.org", match));
     EXPECT_EQ("tmark.org", match->getName());
 
+    // Verify that search is case insensisitive.
+    EXPECT_TRUE(cfg_mgr_->matchForward("TMARK.ORG", match));
+    EXPECT_EQ("tmark.org", match->getName());
+
     // Verify that an exact match works.
     EXPECT_TRUE(cfg_mgr_->matchForward("one.tmark.org", match));
     EXPECT_EQ("one.tmark.org", match->getName());
@@ -1207,7 +1211,8 @@ TEST_F(D2CfgMgrTest, matchReverse) {
                         "  \"dns_servers\" : [ "
                         "  { \"ip_address\": \"127.0.0.1\" } "
                         "  ] }, "
-                        "{ \"name\": \"2.0.3.0.8.B.D.0.1.0.0.2.ip6.arpa.\" , "
+                        // Note mixed case to test case insensitivity.
+                        "{ \"name\": \"2.0.3.0.8.b.d.0.1.0.0.2.IP6.ARPA.\" , "
                         "  \"dns_servers\" : [ "
                         "  { \"ip_address\": \"127.0.0.1\" } "
                         "  ] },"
@@ -1247,7 +1252,7 @@ TEST_F(D2CfgMgrTest, matchReverse) {
 
     // Verify a IPv6 match.
     EXPECT_TRUE(cfg_mgr_->matchReverse("2001:db8:302:99::",match));
-    EXPECT_EQ("2.0.3.0.8.B.D.0.1.0.0.2.ip6.arpa.", match->getName());
+    EXPECT_EQ("2.0.3.0.8.b.d.0.1.0.0.2.IP6.ARPA.", match->getName());
 
     // Verify a IPv6 wild card match.
     EXPECT_TRUE(cfg_mgr_->matchReverse("2001:db8:99:302::",match));