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-rw-r--r--test/unit/ntp_ext.c167
1 files changed, 167 insertions, 0 deletions
diff --git a/test/unit/ntp_ext.c b/test/unit/ntp_ext.c
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+++ b/test/unit/ntp_ext.c
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+/*
+ **********************************************************************
+ * Copyright (C) Miroslav Lichvar 2020
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ **********************************************************************
+ */
+
+#include <config.h>
+#include "test.h"
+
+#ifdef FEAT_NTP
+
+#include <util.h>
+#include <logging.h>
+
+#include <ntp_ext.c>
+
+void
+test_unit(void)
+{
+ unsigned char *buffer, body[NTP_MAX_EXTENSIONS_LENGTH];
+ void *bodyp;
+ NTP_PacketInfo info;
+ NTP_Packet packet;
+ int i, j, start, length, type, type2, body_length, body_length2;
+
+ assert(sizeof (uint16_t) == 2);
+ assert(sizeof (body) == sizeof (packet.extensions));
+
+ buffer = (unsigned char *)packet.extensions;
+
+ for (i = 0; i < 10000; i++) {
+ body_length = random() % (sizeof (body) - 4 + 1) / 4 * 4;
+ start = random() % (sizeof (packet.extensions) - body_length - 4 + 1) / 4 * 4;
+ type = random() % 0x10000;
+
+ DEBUG_LOG("body_length=%d start=%d type=%d", body_length, start, type);
+ assert(body_length + start <= sizeof (packet.extensions));
+
+ UTI_GetRandomBytes(body, body_length);
+
+ TEST_CHECK(!NEF_SetField(buffer, body_length + start + 4, start,
+ type, body, body_length + 4, &length));
+ TEST_CHECK(!NEF_SetField(buffer, body_length + start + 4, start + 4,
+ type, body, body_length, &length));
+ TEST_CHECK(!NEF_SetField(buffer, body_length + start + 4, start,
+ type, body, body_length - 1, &length));
+ TEST_CHECK(!NEF_SetField(buffer, body_length + start + 4, start,
+ type, body, body_length - 2, &length));
+ TEST_CHECK(!NEF_SetField(buffer, body_length + start + 4, start,
+ type, body, body_length - 3, &length));
+ TEST_CHECK(!NEF_SetField(buffer, body_length + start + 3, start,
+ type, body, body_length, &length));
+ TEST_CHECK(!NEF_SetField(buffer, body_length + start + 5, start + 1,
+ type, body, body_length, &length));
+
+ TEST_CHECK(NEF_SetField(buffer, body_length + start + 4, start,
+ type, body, body_length, &length));
+ TEST_CHECK(length == body_length + 4);
+ TEST_CHECK(((uint16_t *)buffer)[start / 2] == htons(type));
+ TEST_CHECK(((uint16_t *)buffer)[start / 2 + 1] == htons(length));
+ TEST_CHECK(memcmp(buffer + start + 4, body, body_length) == 0);
+
+ memset(&packet, 0, sizeof (packet));
+ packet.lvm = NTP_LVM(0, 4, MODE_CLIENT);
+ memset(&info, 0, sizeof (info));
+
+ info.version = 3;
+ info.length = NTP_HEADER_LENGTH;
+ TEST_CHECK(!NEF_AddBlankField(&packet, &info, type, body_length, &bodyp));
+
+ info.version = 4;
+ info.length = NTP_HEADER_LENGTH - 4;
+ TEST_CHECK(!NEF_AddBlankField(&packet, &info, type, body_length, &bodyp));
+
+ info.length = sizeof (packet) - body_length;
+ TEST_CHECK(!NEF_AddBlankField(&packet, &info, type, body_length, &bodyp));
+
+ info.length = NTP_HEADER_LENGTH + start;
+
+ if (body_length < 12) {
+ TEST_CHECK(!NEF_AddBlankField(&packet, &info, type, body_length, &bodyp));
+ continue;
+ }
+
+ TEST_CHECK(NEF_AddBlankField(&packet, &info, type, body_length, &bodyp));
+ TEST_CHECK(info.length == NTP_HEADER_LENGTH + start + body_length + 4);
+ TEST_CHECK(((uint16_t *)buffer)[start / 2] == htons(type));
+ TEST_CHECK(((uint16_t *)buffer)[start / 2 + 1] == htons(length));
+ TEST_CHECK(bodyp == buffer + start + 4);
+ TEST_CHECK(info.ext_fields == 1);
+
+ memset(buffer, 0, sizeof (packet.extensions));
+ info.length = NTP_HEADER_LENGTH + start;
+ info.ext_fields = 0;
+
+ TEST_CHECK(NEF_AddField(&packet, &info, type, body, body_length));
+ TEST_CHECK(info.length == NTP_HEADER_LENGTH + start + body_length + 4);
+ TEST_CHECK(((uint16_t *)buffer)[start / 2] == htons(type));
+ TEST_CHECK(((uint16_t *)buffer)[start / 2 + 1] == htons(length));
+ TEST_CHECK(memcmp(buffer + start + 4, body, body_length) == 0);
+ TEST_CHECK(info.ext_fields == 1);
+
+ for (j = 1; j <= 4; j++) {
+ TEST_CHECK(((uint16_t *)buffer)[start / 2 + 1] = htons(length + j));
+ TEST_CHECK(!NEF_ParseSingleField(buffer, start + body_length + 4, start,
+ &length, &type2, &bodyp, &body_length2));
+ }
+
+ TEST_CHECK(((uint16_t *)buffer)[start / 2 + 1] = htons(length));
+
+ TEST_CHECK(NEF_ParseSingleField(buffer, sizeof (packet.extensions), start,
+ &length, &type2, &bodyp, &body_length2));
+ TEST_CHECK(length == body_length + 4);
+ TEST_CHECK(type2 == type);
+ TEST_CHECK(bodyp == buffer + start + 4);
+ TEST_CHECK(body_length2 == body_length);
+
+ TEST_CHECK(!NEF_ParseField(&packet, sizeof (packet) + 4,
+ NTP_HEADER_LENGTH + start,
+ &length, &type2, &bodyp, &body_length2));
+
+ if (body_length < 24) {
+ TEST_CHECK(!NEF_ParseField(&packet, NTP_HEADER_LENGTH + start + length,
+ NTP_HEADER_LENGTH + start,
+ &length, &type2, &bodyp, &body_length2));
+ if (sizeof (packet.extensions) - start <= 24) {
+ TEST_CHECK(!NEF_ParseField(&packet, sizeof (packet), NTP_HEADER_LENGTH + start,
+ &length, &type2, &bodyp, &body_length2));
+ continue;
+ } else {
+ TEST_CHECK(NEF_ParseField(&packet, sizeof (packet), NTP_HEADER_LENGTH + start,
+ &length, &type2, &bodyp, &body_length2));
+ }
+ } else {
+ TEST_CHECK(NEF_ParseField(&packet, NTP_HEADER_LENGTH + start + length,
+ NTP_HEADER_LENGTH + start,
+ &length, &type2, &bodyp, &body_length2));
+ }
+ TEST_CHECK(length == body_length + 4);
+ TEST_CHECK(type2 == type);
+ TEST_CHECK(bodyp == buffer + start + 4);
+ TEST_CHECK(body_length2 == body_length);
+
+ }
+}
+
+#else
+void
+test_unit(void)
+{
+ TEST_REQUIRE(0);
+}
+#endif
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