1 files changed, 360 insertions, 0 deletions
diff --git a/netwerk/srtp/src/test/rdbx_driver.c b/netwerk/srtp/src/test/rdbx_driver.c
new file mode 100644
index 0000000000..3da6503719
--- /dev/null
+++ b/netwerk/srtp/src/test/rdbx_driver.c
@@ -0,0 +1,360 @@
+/*
+ * 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"
+
+#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;
+}
+
+void print_rdbx(srtp_rdbx_t *rdbx)
+{
+    char buf[2048];
+    printf("rdbx: {%llu, %s}\n", (unsigned long long)(rdbx->index),
+           bitvector_bit_string(&rdbx->bitmask, buf, sizeof(buf)));
+}
+
+/*
+ * 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 << (rand() % 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()  */
+#include <stdlib.h> /* for random() */
+
+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;
+}