[master] tcp and udp stats counters

3739.	[func]		Added per-zone stats counters to track TCP and
			UDP queries. [RT #35375]

CHANGES

+3739.	[func]		Added per-zone stats counters to track TCP and
+			UDP queries. [RT #35375]
+
 3738.	[bug]		--enable-openssl-hash failed to build. [RT #35343]
 
 3737.	[bug]		'rndc retransfer' could trigger a assertion failure

bin/named/client.c

@@ -1728,7 +1728,7 @@ client_request(isc_task_t *task, isc_event_t *event) {
 	}
 	if (TCP_CLIENT(client))
 		isc_stats_increment(ns_g_server->nsstats,
-				    dns_nsstatscounter_tcp);
+				    dns_nsstatscounter_requesttcp);
 
 	/*
 	 * It's a request.  Parse it.

bin/named/include/named/server.h

@@ -132,7 +132,7 @@ enum {
 	dns_nsstatscounter_tsigin = 4,
 	dns_nsstatscounter_sig0in = 5,
 	dns_nsstatscounter_invalidsig = 6,
-	dns_nsstatscounter_tcp = 7,
+	dns_nsstatscounter_requesttcp = 7,
 
 	dns_nsstatscounter_authrej = 8,
 	dns_nsstatscounter_recurserej = 9,
@@ -176,7 +176,10 @@ enum {
 
 	dns_nsstatscounter_rpz_rewrites = 40,
 
-	dns_nsstatscounter_max = 41
+	dns_nsstatscounter_udp = 41,
+	dns_nsstatscounter_tcp = 42,
+
+	dns_nsstatscounter_max = 43
 };
 
 void

bin/named/query.c

@@ -6316,6 +6316,12 @@ query_find(ns_client_t *client, dns_fetchevent_t *event, dns_rdatatype_t qtype)
 			dns_db_attach(db, &client->query.authdb);
 		}
 		client->query.authdbset = ISC_TRUE;
+
+		/* Track TCP vs UDP stats per zone */
+		if ((client->attributes & NS_CLIENTATTR_TCP) != 0)
+			inc_stats(client, dns_nsstatscounter_tcp);
+		else
+			inc_stats(client, dns_nsstatscounter_udp);
 	}
 
  db_find:

bin/named/statschannel.c

@@ -170,7 +170,7 @@ init_desc(void) {
 	SET_NSSTATDESC(sig0in, "requests with SIG(0) received", "ReqSIG0");
 	SET_NSSTATDESC(invalidsig, "requests with invalid signature",
 		       "ReqBadSIG");
-	SET_NSSTATDESC(tcp, "TCP requests received", "ReqTCP");
+	SET_NSSTATDESC(requesttcp, "TCP requests received", "ReqTCP");
 	SET_NSSTATDESC(authrej, "auth queries rejected", "AuthQryRej");
 	SET_NSSTATDESC(recurserej, "recursive queries rejected", "RecQryRej");
 	SET_NSSTATDESC(xfrrej, "transfer requests rejected", "XfrRej");
@@ -218,6 +218,8 @@ init_desc(void) {
 		       "RateSlipped");
 	SET_NSSTATDESC(rpz_rewrites, "response policy zone rewrites",
 		       "RPZRewrites");
+	SET_NSSTATDESC(udp, "UDP queries received", "QryUDP");
+	SET_NSSTATDESC(tcp, "TCP queries received", "QryTCP");
 	INSIST(i == dns_nsstatscounter_max);
 
 	/* Initialize resolver statistics */

lib/dns/zone.c

@@ -1088,7 +1088,7 @@ zone_free(dns_zone_t *zone) {
 		isc_stats_detach(&zone->stats);
 	if (zone->requeststats != NULL)
 		isc_stats_detach(&zone->requeststats);
-	if(zone->rcvquerystats != NULL )
+	if (zone->rcvquerystats != NULL)
 		dns_stats_detach(&zone->rcvquerystats);
 	if (zone->db != NULL)
 		zone_detachdb(zone);