test/cipher_overhead_test.c

   1 /*
   2  * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include "internal/nelem.h"
  11 #include "testutil.h"
  12 #include "../ssl/ssl_local.h"
  13
  14 static int cipher_enabled(const SSL_CIPHER *ciph)
  15 {
  16     /*
  17      * ssl_cipher_get_overhead() actually works with AEAD ciphers even if the
  18      * underlying implementation is not present.
  19      */
  20     if ((ciph->algorithm_mac & SSL_AEAD) != 0)
  21         return 1;
  22
  23     if (ciph->algorithm_enc != SSL_eNULL
  24             && EVP_get_cipherbynid(SSL_CIPHER_get_cipher_nid(ciph)) == NULL)
  25         return 0;
  26
  27     if (EVP_get_digestbynid(SSL_CIPHER_get_digest_nid(ciph)) == NULL)
  28         return 0;
  29
  30     return 1;
  31 }
  32
  33 static int cipher_overhead(void)
  34 {
  35     int ret = 1, i, n = ssl3_num_ciphers();
  36     const SSL_CIPHER *ciph;
  37     size_t mac, in, blk, ex;
  38
  39     for (i = 0; i < n; i++) {
  40         ciph = ssl3_get_cipher(i);
  41         if (!ciph->min_dtls)
  42             continue;
  43         if (!cipher_enabled(ciph)) {
  44             TEST_skip("Skipping disabled cipher %s", ciph->name);
  45             continue;
  46         }
  47         if (!TEST_true(ssl_cipher_get_overhead(ciph, &mac, &in, &blk, &ex))) {
  48             TEST_info("Failed getting %s", ciph->name);
  49             ret = 0;
  50         } else {
  51             TEST_info("Cipher %s: %zu %zu %zu %zu",
  52                       ciph->name, mac, in, blk, ex);
  53         }
  54     }
  55     return ret;
  56 }
  57
  58 int setup_tests(void)
  59 {
  60     ADD_TEST(cipher_overhead);
  61     return 1;
  62 }