static void
bench_mac_do_bench (struct bench_obj *obj, void *buf, size_t buflen)
{
gcry_mac_hd_t hd = obj->priv;
size_t bs;
char b;
gcry_mac_reset (hd);
gcry_mac_write (hd, buf, buflen);
bs = sizeof(b);
gcry_mac_read (hd, &b, &bs);
}
int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
const struct iovec *iov,
size_t niov,
uint8_t **result,
size_t *resultlen,
Error **errp)
{
QCryptoHmacGcrypt *ctx;
gcry_error_t err;
uint32_t ret;
int i;
ctx = hmac->opaque;
for (i = 0; i < niov; i++) {
gcry_mac_write(ctx->handle, iov[i].iov_base, iov[i].iov_len);
}
ret = gcry_mac_get_algo_maclen(qcrypto_hmac_alg_map[hmac->alg]);
if (ret <= 0) {
error_setg(errp, "Unable to get hmac length: %s",
gcry_strerror(ret));
return -1;
}
if (*resultlen == 0) {
*resultlen = ret;
*result = g_new0(uint8_t, *resultlen);
} else if (*resultlen != ret) {
error_setg(errp, "Result buffer size %zu is smaller than hmac %d",
*resultlen, ret);
return -1;
}
err = gcry_mac_read(ctx->handle, *result, resultlen);
if (err != 0) {
error_setg(errp, "Cannot get result: %s",
gcry_strerror(err));
return -1;
}
err = gcry_mac_reset(ctx->handle);
if (err != 0) {
error_setg(errp, "Cannot reset hmac context: %s",
gcry_strerror(err));
return -1;
}
return 0;
}