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Current File : //usr/local/lib/node_modules/mediasoup/worker/deps/libsrtp/srtp/test/rdbx_driver.c
/*
* 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;
}
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 << (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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