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-rw-r--r--third_party/libsrtp/src/test/rdbx_driver.c353
1 files changed, 353 insertions, 0 deletions
diff --git a/third_party/libsrtp/src/test/rdbx_driver.c b/third_party/libsrtp/src/test/rdbx_driver.c
new file mode 100644
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+++ b/third_party/libsrtp/src/test/rdbx_driver.c
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+/*
+ * rdbx_driver.c
+ *
+ * driver for the rdbx implementation (replay database with extended range)
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+/*
+ *
+ * Copyright (c) 2001-2017, 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.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h> /* for printf() */
+#include "getopt_s.h" /* for local getopt() */
+
+#include "rdbx.h"
+#include "cipher_priv.h"
+
+#ifdef ROC_TEST
+#error "srtp_rdbx_t won't work with ROC_TEST - bitmask same size as seq_median"
+#endif
+
+#include "ut_sim.h"
+
+srtp_err_status_t test_replay_dbx(int num_trials, unsigned long ws);
+
+double rdbx_check_adds_per_second(int num_trials, unsigned long ws);
+
+void usage(char *prog_name)
+{
+ printf("usage: %s [ -t | -v ]\n", prog_name);
+ exit(255);
+}
+
+int main(int argc, char *argv[])
+{
+ double rate;
+ srtp_err_status_t status;
+ int q;
+ unsigned do_timing_test = 0;
+ unsigned do_validation = 0;
+
+ /* process input arguments */
+ while (1) {
+ q = getopt_s(argc, argv, "tv");
+ if (q == -1)
+ break;
+ switch (q) {
+ case 't':
+ do_timing_test = 1;
+ break;
+ case 'v':
+ do_validation = 1;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ printf("rdbx (replay database w/ extended range) test driver\n"
+ "David A. McGrew\n"
+ "Cisco Systems, Inc.\n");
+
+ if (!do_validation && !do_timing_test)
+ usage(argv[0]);
+
+ if (do_validation) {
+ printf("testing srtp_rdbx_t (ws=128)...\n");
+
+ status = test_replay_dbx(1 << 12, 128);
+ if (status) {
+ printf("failed\n");
+ exit(1);
+ }
+ printf("passed\n");
+
+ printf("testing srtp_rdbx_t (ws=1024)...\n");
+
+ status = test_replay_dbx(1 << 12, 1024);
+ if (status) {
+ printf("failed\n");
+ exit(1);
+ }
+ printf("passed\n");
+ }
+
+ if (do_timing_test) {
+ rate = rdbx_check_adds_per_second(1 << 18, 128);
+ printf("rdbx_check/replay_adds per second (ws=128): %e\n", rate);
+ rate = rdbx_check_adds_per_second(1 << 18, 1024);
+ printf("rdbx_check/replay_adds per second (ws=1024): %e\n", rate);
+ }
+
+ return 0;
+}
+
+/*
+ * rdbx_check_add(rdbx, idx) checks a known-to-be-good idx against
+ * rdbx, then adds it. if a failure is detected (i.e., the check
+ * indicates that the value is already in rdbx) then
+ * srtp_err_status_algo_fail is returned.
+ *
+ */
+
+srtp_err_status_t rdbx_check_add(srtp_rdbx_t *rdbx, uint32_t idx)
+{
+ int delta;
+ srtp_xtd_seq_num_t est;
+
+ delta = srtp_index_guess(&rdbx->index, &est, idx);
+
+ if (srtp_rdbx_check(rdbx, delta) != srtp_err_status_ok) {
+ printf("replay_check failed at index %u\n", idx);
+ return srtp_err_status_algo_fail;
+ }
+
+ /*
+ * in practice, we'd authenticate the packet containing idx, using
+ * the estimated value est, at this point
+ */
+
+ if (srtp_rdbx_add_index(rdbx, delta) != srtp_err_status_ok) {
+ printf("rdbx_add_index failed at index %u\n", idx);
+ return srtp_err_status_algo_fail;
+ }
+
+ return srtp_err_status_ok;
+}
+
+/*
+ * rdbx_check_expect_failure(srtp_rdbx_t *rdbx, uint32_t idx)
+ *
+ * checks that a sequence number idx is in the replay database
+ * and thus will be rejected
+ */
+
+srtp_err_status_t rdbx_check_expect_failure(srtp_rdbx_t *rdbx, uint32_t idx)
+{
+ int delta;
+ srtp_xtd_seq_num_t est;
+ srtp_err_status_t status;
+
+ delta = srtp_index_guess(&rdbx->index, &est, idx);
+
+ status = srtp_rdbx_check(rdbx, delta);
+ if (status == srtp_err_status_ok) {
+ printf("delta: %d ", delta);
+ printf("replay_check failed at index %u (false positive)\n", idx);
+ return srtp_err_status_algo_fail;
+ }
+
+ return srtp_err_status_ok;
+}
+
+srtp_err_status_t rdbx_check_add_unordered(srtp_rdbx_t *rdbx, uint32_t idx)
+{
+ int delta;
+ srtp_xtd_seq_num_t est;
+ srtp_err_status_t rstat;
+
+ delta = srtp_index_guess(&rdbx->index, &est, idx);
+
+ rstat = srtp_rdbx_check(rdbx, delta);
+ if ((rstat != srtp_err_status_ok) &&
+ (rstat != srtp_err_status_replay_old)) {
+ printf("replay_check_add_unordered failed at index %u\n", idx);
+ return srtp_err_status_algo_fail;
+ }
+ if (rstat == srtp_err_status_replay_old) {
+ return srtp_err_status_ok;
+ }
+ if (srtp_rdbx_add_index(rdbx, delta) != srtp_err_status_ok) {
+ printf("rdbx_add_index failed at index %u\n", idx);
+ return srtp_err_status_algo_fail;
+ }
+
+ return srtp_err_status_ok;
+}
+
+srtp_err_status_t test_replay_dbx(int num_trials, unsigned long ws)
+{
+ srtp_rdbx_t rdbx;
+ uint32_t idx, ircvd;
+ ut_connection utc;
+ srtp_err_status_t status;
+ int num_fp_trials;
+
+ status = srtp_rdbx_init(&rdbx, ws);
+ if (status) {
+ printf("replay_init failed with error code %d\n", status);
+ exit(1);
+ }
+
+ /*
+ * test sequential insertion
+ */
+ printf("\ttesting sequential insertion...");
+ for (idx = 0; (int)idx < num_trials; idx++) {
+ status = rdbx_check_add(&rdbx, idx);
+ if (status)
+ return status;
+ }
+ printf("passed\n");
+
+ /*
+ * test for false positives by checking all of the index
+ * values which we've just added
+ *
+ * note that we limit the number of trials here, since allowing the
+ * rollover counter to roll over would defeat this test
+ */
+ num_fp_trials = num_trials % 0x10000;
+ if (num_fp_trials == 0) {
+ printf("warning: no false positive tests performed\n");
+ }
+ printf("\ttesting for false positives...");
+ for (idx = 0; (int)idx < num_fp_trials; idx++) {
+ status = rdbx_check_expect_failure(&rdbx, idx);
+ if (status)
+ return status;
+ }
+ printf("passed\n");
+
+ /* re-initialize */
+ srtp_rdbx_dealloc(&rdbx);
+
+ if (srtp_rdbx_init(&rdbx, ws) != srtp_err_status_ok) {
+ printf("replay_init failed\n");
+ return srtp_err_status_init_fail;
+ }
+
+ /*
+ * test non-sequential insertion
+ *
+ * this test covers only fase negatives, since the values returned
+ * by ut_next_index(...) are distinct
+ */
+ ut_init(&utc);
+
+ printf("\ttesting non-sequential insertion...");
+ for (idx = 0; (int)idx < num_trials; idx++) {
+ ircvd = ut_next_index(&utc);
+ status = rdbx_check_add_unordered(&rdbx, ircvd);
+ if (status)
+ return status;
+ status = rdbx_check_expect_failure(&rdbx, ircvd);
+ if (status)
+ return status;
+ }
+ printf("passed\n");
+
+ /* re-initialize */
+ srtp_rdbx_dealloc(&rdbx);
+
+ if (srtp_rdbx_init(&rdbx, ws) != srtp_err_status_ok) {
+ printf("replay_init failed\n");
+ return srtp_err_status_init_fail;
+ }
+
+ /*
+ * test insertion with large gaps.
+ * check for false positives for each insertion.
+ */
+ printf("\ttesting insertion with large gaps...");
+ for (idx = 0, ircvd = 0; (int)idx < num_trials;
+ idx++, ircvd += (1 << (srtp_cipher_rand_u32_for_tests() % 12))) {
+ status = rdbx_check_add(&rdbx, ircvd);
+ if (status)
+ return status;
+ status = rdbx_check_expect_failure(&rdbx, ircvd);
+ if (status)
+ return status;
+ }
+ printf("passed\n");
+
+ srtp_rdbx_dealloc(&rdbx);
+
+ return srtp_err_status_ok;
+}
+
+#include <time.h> /* for clock() */
+
+double rdbx_check_adds_per_second(int num_trials, unsigned long ws)
+{
+ uint32_t i;
+ int delta;
+ srtp_rdbx_t rdbx;
+ srtp_xtd_seq_num_t est;
+ clock_t timer;
+ int failures; /* count number of failures */
+
+ if (srtp_rdbx_init(&rdbx, ws) != srtp_err_status_ok) {
+ printf("replay_init failed\n");
+ exit(1);
+ }
+
+ failures = 0;
+ timer = clock();
+ for (i = 0; (int)i < num_trials; i++) {
+ delta = srtp_index_guess(&rdbx.index, &est, i);
+
+ if (srtp_rdbx_check(&rdbx, delta) != srtp_err_status_ok)
+ ++failures;
+ else if (srtp_rdbx_add_index(&rdbx, delta) != srtp_err_status_ok)
+ ++failures;
+ }
+ timer = clock() - timer;
+ if (timer < 1) {
+ timer = 1;
+ }
+
+ printf("number of failures: %d \n", failures);
+
+ srtp_rdbx_dealloc(&rdbx);
+
+ return (double)CLOCKS_PER_SEC * num_trials / timer;
+}
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