mirror of
https://github.com/intel/linux-sgx
synced 2026-06-08 14:49:32 +00:00
Li, Xun
79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * 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.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "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 THE COPYRIGHT
|
|
* OWNER 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 "trts_emodpr.h"
|
|
|
|
#include "sgx_trts.h" // for sgx_ocalloc, sgx_is_outside_enclave
|
|
#include "arch.h"
|
|
#include "sgx_edger8r.h" // for sgx_ocall etc.
|
|
#include "internal/rts.h"
|
|
|
|
/* sgx_ocfree() just restores the original outside stack pointer. */
|
|
#define OCALLOC(val, type, len) do { \
|
|
void* __tmp = sgx_ocalloc(len); \
|
|
if (__tmp == NULL) { \
|
|
sgx_ocfree(); \
|
|
return SGX_ERROR_UNEXPECTED;\
|
|
} \
|
|
(val) = (type)__tmp; \
|
|
} while (0)
|
|
|
|
typedef struct ms_change_permissions_ocall_t {
|
|
size_t ms_addr;
|
|
size_t ms_size;
|
|
uint64_t ms_epcm_perms;
|
|
} ms_change_permissions_ocall_t;
|
|
|
|
sgx_status_t SGXAPI change_permissions_ocall(size_t addr, size_t size, uint64_t epcm_perms)
|
|
{
|
|
#ifdef SE_SIM
|
|
(void)addr;
|
|
(void)size;
|
|
(void)epcm_perms;
|
|
return SGX_SUCCESS;
|
|
#else
|
|
sgx_status_t status = SGX_SUCCESS;
|
|
|
|
ms_change_permissions_ocall_t* ms;
|
|
OCALLOC(ms, ms_change_permissions_ocall_t*, sizeof(*ms));
|
|
|
|
ms->ms_addr = addr;
|
|
ms->ms_size = size;
|
|
ms->ms_epcm_perms = epcm_perms;
|
|
status = sgx_ocall(EDMM_MODPR, ms);
|
|
|
|
|
|
sgx_ocfree();
|
|
return status;
|
|
#endif
|
|
}
|