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Adjust IV size in cipher benchmark.

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The IV size for benchmark can be autodetected (for known ciphers).
For other algorithms user still can specify own values.
This commit is contained in:
Milan Broz
2020-03-23 18:46:59 +01:00
parent 9d13da0050
commit 5b68dec43a
3 changed files with 37 additions and 40 deletions
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12
lib/utils_benchmark.c
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@@ -48,6 +48,12 @@ int crypt_benchmark(struct crypt_device *cd,
if (posix_memalign(&buffer, crypt_getpagesize(), buffer_size))
goto out;
r = crypt_cipher_ivsize(cipher, cipher_mode);
if (r >= 0 && iv_size != (size_t)r) {
log_dbg(cd, "IV length for benchmark adjusted to %i bytes (requested %zu).", r, iv_size);
iv_size = r;
}
if (iv_size) {
iv = malloc(iv_size);
if (!iv)
@@ -71,9 +77,9 @@ int crypt_benchmark(struct crypt_device *cd,
if (r == -ERANGE)
log_dbg(cd, "Measured cipher runtime is too low.");
else if (r == -ENOTSUP || r == -ENOENT)
log_dbg(cd, "Cannot initialize cipher %s, mode %s.", cipher, cipher_mode);
else if (r)
log_dbg(cd, "Cannot initialize cipher %s, mode %s, key size %zu, IV size %zu.",
cipher, cipher_mode, volume_key_size, iv_size);
out:
free(buffer);
free(key);