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/*
* Copyright (C) 2016 The Android Open Source Project
* Copyright NXP 2018
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <common.h>
#include <trusty/avb.h>
#include <trusty/hwcrypto.h>
#include <trusty/keymaster.h>
#include <trusty/rpmb.h>
#include <trusty/trusty_dev.h>
#include <trusty/trusty_ipc.h>
#include <trusty/util.h>
#include <hang.h>
#define LOCAL_LOG 0
typedef uintptr_t vaddr_t;
static struct trusty_ipc_dev *_ipc_dev;
static struct trusty_dev _tdev; /* There should only be one trusty device */
static void *rpmb_ctx;
#ifndef CONFIG_AVB_ATX
bool rpmbkey_is_set(void);
#endif
void rpmb_storage_put_ctx(void *dev);
void trusty_ipc_shutdown(void)
{
(void)rpmb_storage_proxy_shutdown(_ipc_dev);
(void)rpmb_storage_put_ctx(rpmb_ctx);
(void)avb_tipc_shutdown(_ipc_dev);
(void)km_tipc_shutdown(_ipc_dev);
#ifndef CONFIG_AVB_ATX
(void)hwcrypto_tipc_shutdown(_ipc_dev);
#endif
/* shutdown Trusty IPC device */
(void)trusty_ipc_dev_shutdown(_ipc_dev);
/* shutdown Trusty device */
(void)trusty_dev_shutdown(&_tdev);
}
int trusty_ipc_init(void)
{
int rc;
/* init Trusty device */
trusty_info("Initializing Trusty device\n");
rc = trusty_dev_init(&_tdev, NULL);
if (rc != 0) {
trusty_error("Initializing Trusty device failed (%d)\n", rc);
return rc;
}
/* create Trusty IPC device */
rc = trusty_ipc_dev_create(&_ipc_dev, &_tdev, PAGE_SIZE);
if (rc != 0) {
trusty_error("Initializing Trusty IPC device failed (%d)\n", rc);
return rc;
}
/* get storage rpmb */
rpmb_ctx = rpmb_storage_get_ctx();
/* start secure storage proxy service */
rc = rpmb_storage_proxy_init(_ipc_dev, rpmb_ctx);
if (rc != 0) {
trusty_error("Initlializing RPMB storage proxy service failed (%d)\n",
rc);
#ifndef CONFIG_AVB_ATX
/* check if rpmb key has been fused. */
if(rpmbkey_is_set()) {
/* Go to hang if the key has been destroyed. */
trusty_error("RPMB key was destroyed!\n");
hang();
}
#else
return rc;
#endif
} else {
/* secure storage service init ok, use trusty backed keystore */
env_set("keystore", "trusty");
rc = avb_tipc_init(_ipc_dev);
if (rc != 0) {
trusty_error("Initlializing Trusty AVB client failed (%d)\n", rc);
return rc;
}
rc = km_tipc_init(_ipc_dev);
if (rc != 0) {
trusty_error("Initlializing Trusty Keymaster client failed (%d)\n", rc);
return rc;
}
}
#ifndef CONFIG_AVB_ATX
rc = hwcrypto_tipc_init(_ipc_dev);
if (rc != 0) {
trusty_error("Initlializing Trusty Keymaster client failed (%d)\n", rc);
return rc;
}
#endif
return TRUSTY_ERR_NONE;
}
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