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/* Copyright (c) 2014-2018, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "config.h"
#include <odp_posix_extensions.h>
#include <odp_internal.h>
#include <odp/api/random.h>
#include <openssl/rand.h>
odp_random_kind_t odp_random_max_kind(void)
{
return ODP_RANDOM_CRYPTO;
}
int32_t odp_random_data(uint8_t *buf, uint32_t len, odp_random_kind_t kind)
{
int rc;
switch (kind) {
case ODP_RANDOM_BASIC:
case ODP_RANDOM_CRYPTO:
rc = RAND_bytes(buf, len);
return (1 == rc) ? (int)len /*success*/: -1 /*failure*/;
case ODP_RANDOM_TRUE:
default:
return -1;
}
}
int32_t odp_random_test_data(uint8_t *buf, uint32_t len, uint64_t *seed)
{
union {
uint32_t rand_word;
uint8_t rand_byte[4];
} u;
uint32_t i = 0, j;
uint32_t seed32 = (*seed) & 0xffffffff;
while (i < len) {
u.rand_word = rand_r(&seed32);
for (j = 0; j < 4 && i < len; j++, i++)
*buf++ = u.rand_byte[j];
}
*seed = seed32;
return len;
}
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