1 files changed, 74 insertions, 0 deletions
diff --git a/src/knot/dnssec/kasp/keystate.c b/src/knot/dnssec/kasp/keystate.c
new file mode 100644
index 0000000..f1eaa54
--- /dev/null
+++ b/src/knot/dnssec/kasp/keystate.c
@@ -0,0 +1,74 @@
+/*  Copyright (C) 2020 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "knot/dnssec/kasp/keystate.h"
+
+key_state_t get_key_state(const knot_kasp_key_t *key, knot_time_t moment)
+{
+	if (!key || moment <= 0) {
+		return DNSSEC_KEY_STATE_INVALID;
+	}
+
+	const knot_kasp_key_timing_t *t = &key->timing;
+
+	bool removed = (knot_time_cmp(t->remove, moment) <= 0);
+	bool revoked = (knot_time_cmp(t->revoke, moment) <= 0);
+	bool post_active = (knot_time_cmp(t->post_active, moment) <= 0);
+	bool retired = (knot_time_cmp(t->retire, moment) <= 0);
+	bool retire_active = (knot_time_cmp(t->retire_active, moment) <= 0);
+	bool active = (knot_time_cmp(t->active, moment) <= 0);
+	bool ready = (knot_time_cmp(t->ready, moment) <= 0);
+	bool published = (knot_time_cmp(t->publish, moment) <= 0);
+	bool pre_active = (knot_time_cmp(t->pre_active, moment) <= 0);
+	bool created = (knot_time_cmp(t->created, moment) <= 0);
+
+	if (removed) {
+		return DNSSEC_KEY_STATE_REMOVED;
+	}
+	if (revoked) {
+		return DNSSEC_KEY_STATE_REVOKED;
+	}
+	if (post_active) {
+		if (retired) {
+			return DNSSEC_KEY_STATE_INVALID;
+		} else {
+			return DNSSEC_KEY_STATE_POST_ACTIVE;
+		}
+	}
+	if (retired) {
+		return DNSSEC_KEY_STATE_RETIRED;
+	}
+	if (retire_active) {
+		return DNSSEC_KEY_STATE_RETIRE_ACTIVE;
+	}
+	if (active) {
+		return DNSSEC_KEY_STATE_ACTIVE;
+	}
+	if (ready) {
+		return DNSSEC_KEY_STATE_READY;
+	}
+	if (published) {
+		return DNSSEC_KEY_STATE_PUBLISHED;
+	}
+	if (pre_active) {
+		return DNSSEC_KEY_STATE_PRE_ACTIVE;
+	}
+	if (created) {
+		// don't care
+	}
+
+	return DNSSEC_KEY_STATE_INVALID;
+}