mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-08-16 15:21:48 +00:00
8b16be9185
Many of the license and Intel copyright headers include the "All rights reserved" string. It is not relevant in the context of the BSD-3-Clause license that the code is released under. This patch removes those strings throughout the code (hypervisor, devicemodel and misc). Tracked-On: #7254 Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2018 Intel Corporation
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <openssl/rand.h>
|
|
|
|
#include "types.h"
|
|
#include "vrpmb.h"
|
|
#include "log.h"
|
|
|
|
#define DRNG_MAX_RETRIES 5U
|
|
|
|
struct key_material {
|
|
uint8_t key[RPMB_KEY_LEN];
|
|
bool initialized;
|
|
};
|
|
|
|
static struct key_material vrkey = {
|
|
.key = {0},
|
|
.initialized = false
|
|
};
|
|
|
|
int get_vrpmb_key(uint8_t *out, size_t size)
|
|
{
|
|
int ret;
|
|
int i;
|
|
|
|
if (!out) {
|
|
pr_err("%s: Invalid output pointer\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
if (size != RPMB_KEY_LEN) {
|
|
pr_err("%s: Invalid input key size\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
if ( vrkey.initialized == false ) {
|
|
for (i = 0; i < DRNG_MAX_RETRIES; i++) {
|
|
ret = RAND_bytes(vrkey.key, RPMB_KEY_LEN);
|
|
if (ret == 1) {
|
|
vrkey.initialized = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (vrkey.initialized != true) {
|
|
pr_err("%s: unable to generate random key!\n", __func__);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
memcpy(out, vrkey.key, size);
|
|
return 1;
|
|
}
|