summaryrefslogtreecommitdiff
path: root/srtp/test/roc_driver.c
diff options
context:
space:
mode:
Diffstat (limited to 'srtp/test/roc_driver.c')
-rw-r--r--srtp/test/roc_driver.c165
1 files changed, 165 insertions, 0 deletions
diff --git a/srtp/test/roc_driver.c b/srtp/test/roc_driver.c
new file mode 100644
index 0000000..396c9a7
--- /dev/null
+++ b/srtp/test/roc_driver.c
@@ -0,0 +1,165 @@
+/*
+ * roc_driver.c
+ *
+ * test driver for rollover counter replay implementation
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *
+ * Copyright (c) 2001-2006, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * Neither the name of the Cisco Systems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include <stdio.h>
+
+/*
+ * defining ROC_TEST causes small datatypes to be used in
+ * xtd_seq_num_t - this allows the functions to be exhaustively tested.
+ */
+#if ROC_NEEDS_TO_BE_TESTED
+#define ROC_TEST
+#endif
+
+#include "rdbx.h"
+#include "ut_sim.h"
+
+err_status_t
+roc_test(int num_trials);
+
+int
+main (void) {
+ err_status_t status;
+
+ printf("rollover counter test driver\n"
+ "David A. McGrew\n"
+ "Cisco Systems, Inc.\n");
+
+ printf("testing index functions...");
+ status = roc_test(1 << 18);
+ if (status) {
+ printf("failed\n");
+ exit(status);
+ }
+ printf("passed\n");
+ return 0;
+}
+
+
+#define ROC_VERBOSE 0
+
+err_status_t
+roc_test(int num_trials) {
+ xtd_seq_num_t local, est, ref;
+ ut_connection utc;
+ int i, num_bad_est = 0;
+ int delta;
+ uint32_t ircvd;
+ double failure_rate;
+
+ index_init(&local);
+ index_init(&ref);
+ index_init(&est);
+
+ printf("\n\ttesting sequential insertion...");
+ for (i=0; i < 2048; i++) {
+ delta = index_guess(&local, &est, (uint16_t) ref);
+#if ROC_VERBOSE
+ printf("%lld, %lld, %d\n", ref, est, i);
+#endif
+ if (ref != est) {
+#if ROC_VERBOSE
+ printf(" *bad estimate*\n");
+#endif
+ ++num_bad_est;
+ }
+ index_advance(&ref, 1);
+ }
+ failure_rate = (double) num_bad_est / num_trials;
+ if (failure_rate > 0.01) {
+ printf("error: failure rate too high (%d bad estimates in %d trials)\n",
+ num_bad_est, num_trials);
+ return err_status_algo_fail;
+ }
+ printf("done\n");
+
+
+ printf("\ttesting non-sequential insertion...");
+ index_init(&local);
+ index_init(&ref);
+ index_init(&est);
+ ut_init(&utc);
+
+ for (i=0; i < num_trials; i++) {
+
+ /* get next seq num from unreliable transport simulator */
+ ircvd = ut_next_index(&utc);
+
+ /* set ref to value of ircvd */
+ ref = ircvd;
+
+ /* estimate index based on low bits of ircvd */
+ delta = index_guess(&local, &est, (uint16_t) ref);
+#if ROC_VERBOSE
+ printf("ref: %lld, local: %lld, est: %lld, ircvd: %d, delta: %d\n",
+ ref, local, est, ircvd, delta);
+#endif
+
+ /* now update local xtd_seq_num_t as necessary */
+ if (delta > 0)
+ index_advance(&local, delta);
+
+ if (ref != est) {
+#if ROC_VERBOSE
+ printf(" *bad estimate*\n");
+#endif
+ /* record failure event */
+ ++num_bad_est;
+
+ /* reset local value to correct value */
+ local = ref;
+ }
+ }
+ failure_rate = (double) num_bad_est / num_trials;
+ if (failure_rate > 0.01) {
+ printf("error: failure rate too high (%d bad estimates in %d trials)\n",
+ num_bad_est, num_trials);
+ return err_status_algo_fail;
+ }
+ printf("done\n");
+
+ return err_status_ok;
+}