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/*
* replay_driver.c
*
* A driver for the replay_database 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>
#include "rdb.h"
#include "ut_sim.h"
/*
* num_trials defines the number of trials that are used in the
* validation functions below
*/
unsigned num_trials = 1 << 16;
err_status_t
test_rdb_db(void);
double
rdb_check_adds_per_second(void);
int
main (void) {
err_status_t err;
printf("testing anti-replay database (rdb_t)...\n");
err = test_rdb_db();
if (err) {
printf("failed\n");
exit(1);
}
printf("done\n");
printf("rdb_check/rdb_adds per second: %e\n",
rdb_check_adds_per_second());
return 0;
}
void
print_rdb(rdb_t *rdb) {
printf("rdb: {%u, %s}\n", rdb->window_start, v128_bit_string(&rdb->bitmask));
}
err_status_t
rdb_check_add(rdb_t *rdb, uint32_t idx) {
if (rdb_check(rdb, idx) != err_status_ok) {
printf("rdb_check failed at index %u\n", idx);
return err_status_fail;
}
if (rdb_add_index(rdb, idx) != err_status_ok) {
printf("rdb_add_index failed at index %u\n", idx);
return err_status_fail;
}
return err_status_ok;
}
err_status_t
rdb_check_expect_failure(rdb_t *rdb, uint32_t idx) {
err_status_t err;
err = rdb_check(rdb, idx);
if ((err != err_status_replay_old) && (err != err_status_replay_fail)) {
printf("rdb_check failed at index %u (false positive)\n", idx);
return err_status_fail;
}
return err_status_ok;
}
err_status_t
rdb_check_unordered(rdb_t *rdb, uint32_t idx) {
err_status_t rstat;
/* printf("index: %u\n", idx); */
rstat = rdb_check(rdb, idx);
if ((rstat != err_status_ok) && (rstat != err_status_replay_old)) {
printf("rdb_check_unordered failed at index %u\n", idx);
return rstat;
}
return err_status_ok;
}
err_status_t
test_rdb_db() {
rdb_t rdb;
uint32_t idx, ircvd;
ut_connection utc;
err_status_t err;
if (rdb_init(&rdb) != err_status_ok) {
printf("rdb_init failed\n");
return err_status_init_fail;
}
/* test sequential insertion */
for (idx=0; idx < num_trials; idx++) {
err = rdb_check_add(&rdb, idx);
if (err)
return err;
}
/* test for false positives */
for (idx=0; idx < num_trials; idx++) {
err = rdb_check_expect_failure(&rdb, idx);
if (err)
return err;
}
/* re-initialize */
if (rdb_init(&rdb) != err_status_ok) {
printf("rdb_init failed\n");
return err_status_fail;
}
/* test non-sequential insertion */
ut_init(&utc);
for (idx=0; idx < num_trials; idx++) {
ircvd = ut_next_index(&utc);
err = rdb_check_unordered(&rdb, ircvd);
if (err)
return err;
}
return err_status_ok;
}
#include <time.h> /* for clock() */
#include <stdlib.h> /* for random() */
#define REPLAY_NUM_TRIALS 10000000
double
rdb_check_adds_per_second(void) {
uint32_t i;
rdb_t rdb;
clock_t timer;
int failures; /* count number of failures */
if (rdb_init(&rdb) != err_status_ok) {
printf("rdb_init failed\n");
exit(1);
}
timer = clock();
for(i=0; i < REPLAY_NUM_TRIALS; i+=3) {
if (rdb_check(&rdb, i+2) != err_status_ok)
++failures;
if (rdb_add_index(&rdb, i+2) != err_status_ok)
++failures;
if (rdb_check(&rdb, i+1) != err_status_ok)
++failures;
if (rdb_add_index(&rdb, i+1) != err_status_ok)
++failures;
if (rdb_check(&rdb, i) != err_status_ok)
++failures;
if (rdb_add_index(&rdb, i) != err_status_ok)
++failures;
}
timer = clock() - timer;
return (double) CLOCKS_PER_SEC * REPLAY_NUM_TRIALS / timer;
}
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