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- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
- #include <stdio.h>
- #if ROC_NEEDS_TO_BE_TESTED
- #define ROC_TEST
- #endif
- #include "rdbx.h"
- #include "ut_sim.h"
- srtp_err_status_t roc_test(int num_trials);
- int main(void)
- {
- srtp_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
- srtp_err_status_t roc_test(int num_trials)
- {
- srtp_xtd_seq_num_t local, est, ref;
- ut_connection utc;
- int i, num_bad_est = 0;
- int delta;
- uint32_t ircvd;
- double failure_rate;
- srtp_index_init(&local);
- srtp_index_init(&ref);
- srtp_index_init(&est);
- printf("\n\ttesting sequential insertion...");
- for (i = 0; i < 2048; i++) {
- srtp_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;
- }
- srtp_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 srtp_err_status_algo_fail;
- }
- printf("done\n");
- printf("\ttesting non-sequential insertion...");
- srtp_index_init(&local);
- srtp_index_init(&ref);
- srtp_index_init(&est);
- ut_init(&utc);
- for (i = 0; i < num_trials; i++) {
-
- ircvd = ut_next_index(&utc);
-
- ref = ircvd;
-
- delta = srtp_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
- if (local + delta != est) {
- printf(" *bad delta*: local %llu + delta %d != est %llu\n",
- (unsigned long long)local, delta, (unsigned long long)est);
- return srtp_err_status_algo_fail;
- }
-
- if (delta > 0)
- srtp_index_advance(&local, delta);
- if (ref != est) {
- #if ROC_VERBOSE
- printf(" *bad estimate*\n");
- #endif
-
- ++num_bad_est;
-
- 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 srtp_err_status_algo_fail;
- }
- printf("done\n");
- return srtp_err_status_ok;
- }
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