1 files changed, 138 insertions, 0 deletions
diff --git a/lib/ns/include/ns/stats.h b/lib/ns/include/ns/stats.h
new file mode 100644
index 0000000..c235384
--- /dev/null
+++ b/lib/ns/include/ns/stats.h
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#pragma once
+
+/*! \file include/ns/stats.h */
+
+#include <ns/types.h>
+
+/*%
+ * Server statistics counters.  Used as isc_statscounter_t values.
+ */
+enum {
+	ns_statscounter_requestv4 = 0,
+	ns_statscounter_requestv6 = 1,
+	ns_statscounter_edns0in = 2,
+	ns_statscounter_badednsver = 3,
+	ns_statscounter_tsigin = 4,
+	ns_statscounter_sig0in = 5,
+	ns_statscounter_invalidsig = 6,
+	ns_statscounter_requesttcp = 7,
+
+	ns_statscounter_authrej = 8,
+	ns_statscounter_recurserej = 9,
+	ns_statscounter_xfrrej = 10,
+	ns_statscounter_updaterej = 11,
+
+	ns_statscounter_response = 12,
+	ns_statscounter_truncatedresp = 13,
+	ns_statscounter_edns0out = 14,
+	ns_statscounter_tsigout = 15,
+	ns_statscounter_sig0out = 16,
+
+	ns_statscounter_success = 17,
+	ns_statscounter_authans = 18,
+	ns_statscounter_nonauthans = 19,
+	ns_statscounter_referral = 20,
+	ns_statscounter_nxrrset = 21,
+	ns_statscounter_servfail = 22,
+	ns_statscounter_formerr = 23,
+	ns_statscounter_nxdomain = 24,
+	ns_statscounter_recursion = 25,
+	ns_statscounter_duplicate = 26,
+	ns_statscounter_dropped = 27,
+	ns_statscounter_failure = 28,
+
+	ns_statscounter_xfrdone = 29,
+
+	ns_statscounter_updatereqfwd = 30,
+	ns_statscounter_updaterespfwd = 31,
+	ns_statscounter_updatefwdfail = 32,
+	ns_statscounter_updatedone = 33,
+	ns_statscounter_updatefail = 34,
+	ns_statscounter_updatebadprereq = 35,
+
+	ns_statscounter_recursclients = 36,
+
+	ns_statscounter_dns64 = 37,
+
+	ns_statscounter_ratedropped = 38,
+	ns_statscounter_rateslipped = 39,
+
+	ns_statscounter_rpz_rewrites = 40,
+
+	ns_statscounter_udp = 41,
+	ns_statscounter_tcp = 42,
+
+	ns_statscounter_nsidopt = 43,
+	ns_statscounter_expireopt = 44,
+	ns_statscounter_otheropt = 45,
+	ns_statscounter_ecsopt = 46,
+	ns_statscounter_padopt = 47,
+	ns_statscounter_keepaliveopt = 48,
+
+	ns_statscounter_nxdomainredirect = 49,
+	ns_statscounter_nxdomainredirect_rlookup = 50,
+
+	ns_statscounter_cookiein = 51,
+	ns_statscounter_cookiebadsize = 52,
+	ns_statscounter_cookiebadtime = 53,
+	ns_statscounter_cookienomatch = 54,
+	ns_statscounter_cookiematch = 55,
+	ns_statscounter_cookienew = 56,
+	ns_statscounter_badcookie = 57,
+
+	ns_statscounter_nxdomainsynth = 58,
+	ns_statscounter_nodatasynth = 59,
+	ns_statscounter_wildcardsynth = 60,
+
+	ns_statscounter_trystale = 61,
+	ns_statscounter_usedstale = 62,
+
+	ns_statscounter_prefetch = 63,
+	ns_statscounter_keytagopt = 64,
+
+	ns_statscounter_tcphighwater = 65,
+
+	ns_statscounter_reclimitdropped = 66,
+
+	ns_statscounter_updatequota = 67,
+
+	ns_statscounter_max = 68,
+};
+
+void
+ns_stats_attach(ns_stats_t *stats, ns_stats_t **statsp);
+
+void
+ns_stats_detach(ns_stats_t **statsp);
+
+isc_result_t
+ns_stats_create(isc_mem_t *mctx, int ncounters, ns_stats_t **statsp);
+
+void
+ns_stats_increment(ns_stats_t *stats, isc_statscounter_t counter);
+
+void
+ns_stats_decrement(ns_stats_t *stats, isc_statscounter_t counter);
+
+isc_stats_t *
+ns_stats_get(ns_stats_t *stats);
+
+void
+ns_stats_update_if_greater(ns_stats_t *stats, isc_statscounter_t counter,
+			   isc_statscounter_t value);
+
+isc_statscounter_t
+ns_stats_get_counter(ns_stats_t *stats, isc_statscounter_t counter);