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Merge changes from topic "rme-attest" into integration
* changes: feat(rme): add dummy realm attestation key to RMMD feat(rme): add dummy platform token to RMMD
This commit is contained in:
Soby Mathew
TrustedFirmware Code Review
commit
ad88c37080
11 changed files with 643 additions and 8 deletions
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@ -2017,6 +2017,58 @@ state. This function must return a pointer to the ``entry_point_info`` structure
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(that was copied during ``bl31_early_platform_setup()``) if the image exists. It
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should return NULL otherwise.
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Function : plat_get_cca_attest_token() [mandatory when ENABLE_RME == 1]
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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::
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Argument : uintptr_t, size_t *, uintptr_t, size_t
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Return : int
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This function returns the Platform attestation token.
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The parameters of the function are:
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arg0 - A pointer to the buffer where the Platform token should be copied by
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this function. The buffer must be big enough to hold the Platform
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token.
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arg1 - Contains the size (in bytes) of the buffer passed in arg0. The
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function returns the platform token length in this parameter.
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arg2 - A pointer to the buffer where the challenge object is stored.
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arg3 - The length of the challenge object in bytes. Possible values are 32,
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48 and 64.
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The function returns 0 on success, -EINVAL on failure.
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Function : plat_get_cca_realm_attest_key() [mandatory when ENABLE_RME == 1]
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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::
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Argument : uintptr_t, size_t *, unsigned int
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Return : int
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This function returns the delegated realm attestation key which will be used to
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sign Realm attestation token. The API currently only supports P-384 ECC curve
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key.
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The parameters of the function are:
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arg0 - A pointer to the buffer where the attestation key should be copied
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by this function. The buffer must be big enough to hold the
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attestation key.
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arg1 - Contains the size (in bytes) of the buffer passed in arg0. The
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function returns the attestation key length in this parameter.
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arg2 - The type of the elliptic curve to which the requested attestation key
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belongs.
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The function returns 0 on success, -EINVAL on failure.
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Function : bl31_plat_enable_mmu [optional]
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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@ -3154,7 +3206,7 @@ amount of open resources per driver.
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--------------
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*Copyright (c) 2013-2021, Arm Limited and Contributors. All rights reserved.*
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*Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.*
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.. _PSCI: http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
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.. _Arm Generic Interrupt Controller version 2.0 (GICv2): http://infocenter.arm.com/help/topic/com.arm.doc.ihi0048b/index.html
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
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* Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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@ -302,6 +302,14 @@ plat_local_state_t plat_get_target_pwr_state(unsigned int lvl,
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const plat_local_state_t *states,
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unsigned int ncpu);
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/*******************************************************************************
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* Mandatory BL31 functions when ENABLE_RME=1
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******************************************************************************/
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int plat_get_cca_attest_token(uintptr_t buf, size_t *len,
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uintptr_t hash, size_t hash_size);
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int plat_get_cca_realm_attest_key(uintptr_t buf, size_t *len,
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unsigned int type);
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/*******************************************************************************
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* Optional BL31 functions (may be overridden)
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******************************************************************************/
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@ -77,6 +77,45 @@
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#define RMMD_ERR_INVAL -5
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#define RMMD_ERR_UNK -6
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/*
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* Retrieve Platform token from EL3.
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* The arguments to this SMC are :
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* arg0 - Function ID.
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* arg1 - Platform attestation token buffer Physical address. (The challenge
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* object is passed in this buffer.)
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* arg2 - Platform attestation token buffer size (in bytes).
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* arg3 - Challenge object size (in bytes). It has be one of the defined SHA hash
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* sizes.
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* The return arguments are :
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* ret0 - Status / error.
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* ret1 - Size of the platform token if successful.
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*/
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#define RMMD_ATTEST_GET_PLAT_TOKEN RMM_FID(SMC_64, ATTEST_GET_PLAT_TOKEN)
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/* Acceptable SHA sizes for Challenge object */
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#define SHA256_DIGEST_SIZE 32U
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#define SHA384_DIGEST_SIZE 48U
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#define SHA512_DIGEST_SIZE 64U
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/*
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* Retrieve Realm attestation key from EL3. Only P-384 ECC curve key is
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* supported. The arguments to this SMC are :
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* arg0 - Function ID.
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* arg1 - Realm attestation key buffer Physical address.
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* arg2 - Realm attestation key buffer size (in bytes).
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* arg3 - The type of the elliptic curve to which the requested
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* attestation key belongs to. The value should be one of the
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* defined curve types.
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* The return arguments are :
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* ret0 - Status / error.
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* ret1 - Size of the realm attestation key if successful.
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*/
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#define RMMD_ATTEST_GET_REALM_KEY RMM_FID(SMC_64, ATTEST_GET_REALM_KEY)
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/* ECC Curve types for attest key generation */
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#define ATTEST_KEY_CURVE_ECC_SECP384R1 0
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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@ -100,5 +139,4 @@ uint64_t rmmd_rmm_el3_handler(uint32_t smc_fid,
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uint64_t flags);
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#endif /* __ASSEMBLER__ */
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#endif /* RMMD_SVC_H */
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317
plat/arm/board/fvp/fvp_plat_attest_token.c
Normal file
317
plat/arm/board/fvp/fvp_plat_attest_token.c
Normal file
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@ -0,0 +1,317 @@
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/*
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* Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <errno.h>
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#include <stdint.h>
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#include <string.h>
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/* Using hardcoded token values for AEM FVP */
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static uint8_t platform_token[] = {
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0xD2, 0x84, 0x40, 0xA0, 0x59, 0x08, 0xB1, 0xD9,
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0x61, 0xA8, 0xA9, 0x0A, 0x58, 0x40, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0x3A, 0x00,
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0x01, 0x24, 0xFA, 0x58, 0x40, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0x3A, 0x00, 0x01,
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0x25, 0x00, 0x58, 0x41, 0x01, 0x0B, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB,
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0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0x12, 0x78, 0x1C,
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0x68, 0x74, 0x74, 0x70, 0x3A, 0x2F, 0x2F, 0x61,
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0x72, 0x6D, 0x2E, 0x63, 0x6F, 0x6D, 0x2F, 0x43,
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0x43, 0x41, 0x2D, 0x53, 0x53, 0x44, 0x2F, 0x31,
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0x2E, 0x30, 0x2E, 0x30, 0x0B, 0x58, 0x19, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0x3A, 0x00, 0x01, 0x24, 0xF7, 0x78, 0x1C, 0x68,
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0x74, 0x74, 0x70, 0x3A, 0x2F, 0x2F, 0x61, 0x72,
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0x6D, 0x2E, 0x63, 0x6F, 0x6D, 0x2F, 0x43, 0x43,
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0x41, 0x2D, 0x53, 0x53, 0x44, 0x2F, 0x31, 0x2E,
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0x30, 0x2E, 0x30, 0x3A, 0x00, 0x01, 0x25, 0x01,
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0x78, 0x18, 0x68, 0x74, 0x74, 0x70, 0x73, 0x3A,
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0x2F, 0x2F, 0x63, 0x63, 0x61, 0x5F, 0x76, 0x65,
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0x72, 0x69, 0x66, 0x69, 0x65, 0x72, 0x2E, 0x6F,
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0x72, 0x67, 0x3A, 0x00, 0x01, 0x24, 0xF9, 0x19,
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0x30, 0x00, 0x3A, 0x00, 0x01, 0x24, 0xFD, 0x8D,
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0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
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||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
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0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
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0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
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||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
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||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
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0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
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0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
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0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
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0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
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0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
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0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
|
||||
0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
|
||||
0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
|
||||
0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
|
||||
0x58, 0x40, 0xD3, 0x8A, 0x41, 0xA6, 0xC1, 0x29,
|
||||
0x98, 0x18, 0xB5, 0x16, 0x9C, 0x21, 0x78, 0xB7,
|
||||
0x92, 0xF8, 0x26, 0x82, 0x76, 0x2F, 0x26, 0x45,
|
||||
0x21, 0x6D, 0x0C, 0x21, 0x06, 0xF4, 0xB5, 0xE3,
|
||||
0xA8, 0x07, 0xD1, 0xD6, 0x8C, 0x73, 0xA5, 0xC8,
|
||||
0x16, 0xD8, 0x30, 0x68, 0xC0, 0xA4, 0x77, 0xE2,
|
||||
0x1E, 0xD2, 0x17, 0x86, 0xC3, 0x68, 0x82, 0xDD,
|
||||
0x21, 0x1B, 0xA3, 0xE2, 0xC7, 0xF7, 0x06, 0x33,
|
||||
0xB0, 0x3A
|
||||
};
|
||||
|
||||
int plat_get_cca_attest_token(uintptr_t buf, size_t *len,
|
||||
uintptr_t hash, size_t hash_size)
|
||||
{
|
||||
(void)hash;
|
||||
(void)hash_size;
|
||||
|
||||
if (*len < sizeof(platform_token)) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
(void)memcpy((void *)buf, platform_token, sizeof(platform_token));
|
||||
*len = sizeof(platform_token);
|
||||
|
||||
return 0;
|
||||
}
|
||||
35
plat/arm/board/fvp/fvp_realm_attest_key.c
Normal file
35
plat/arm/board/fvp/fvp_realm_attest_key.c
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
/*
|
||||
* Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <services/rmmd_svc.h>
|
||||
|
||||
static uint8_t sample_attest_priv_key[] = {
|
||||
0x20, 0x11, 0xC7, 0xF0, 0x3C, 0xEE, 0x43, 0x25, 0x17, 0x6E,
|
||||
0x52, 0x4F, 0x03, 0x3C, 0x0C, 0xE1, 0xE2, 0x1A, 0x76, 0xE6,
|
||||
0xC1, 0xA4, 0xF0, 0xB8, 0x39, 0xAA, 0x1D, 0xF6, 0x1E, 0x0E,
|
||||
0x8A, 0x5C, 0x8A, 0x05, 0x74, 0x0F, 0x9B, 0x69, 0xEF, 0xA7,
|
||||
0xEB, 0x1A, 0x41, 0x85, 0xBD, 0x11, 0x7F, 0x68
|
||||
};
|
||||
|
||||
int plat_get_cca_realm_attest_key(uintptr_t buf, size_t *len, unsigned int type)
|
||||
{
|
||||
assert(type == ATTEST_KEY_CURVE_ECC_SECP384R1);
|
||||
|
||||
if (*len < sizeof(sample_attest_priv_key)) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
(void)memcpy((void *)buf, sample_attest_priv_key,
|
||||
sizeof(sample_attest_priv_key));
|
||||
*len = sizeof(sample_attest_priv_key);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -103,7 +103,7 @@
|
|||
# if SPM_MM
|
||||
# define PLAT_ARM_MMAP_ENTRIES 10
|
||||
# if ENABLE_RME
|
||||
# define MAX_XLAT_TABLES 10
|
||||
# define MAX_XLAT_TABLES 11
|
||||
# else
|
||||
# define MAX_XLAT_TABLES 9
|
||||
# endif
|
||||
|
|
@ -113,13 +113,13 @@
|
|||
# define PLAT_ARM_MMAP_ENTRIES 9
|
||||
# if USE_DEBUGFS
|
||||
# if ENABLE_RME
|
||||
# define MAX_XLAT_TABLES 9
|
||||
# define MAX_XLAT_TABLES 10
|
||||
# else
|
||||
# define MAX_XLAT_TABLES 8
|
||||
# endif
|
||||
# else
|
||||
# if ENABLE_RME
|
||||
# define MAX_XLAT_TABLES 8
|
||||
# define MAX_XLAT_TABLES 9
|
||||
# else
|
||||
# define MAX_XLAT_TABLES 7
|
||||
# endif
|
||||
|
|
|
|||
|
|
@ -193,6 +193,8 @@ endif
|
|||
|
||||
ifeq (${ENABLE_RME},1)
|
||||
BL2_SOURCES += plat/arm/board/fvp/aarch64/fvp_helpers.S
|
||||
BL31_SOURCES += plat/arm/board/fvp/fvp_plat_attest_token.c \
|
||||
plat/arm/board/fvp/fvp_realm_attest_key.c
|
||||
endif
|
||||
|
||||
ifeq (${BL2_AT_EL3},1)
|
||||
|
|
@ -344,6 +346,10 @@ else # AArch64
|
|||
endif
|
||||
endif
|
||||
|
||||
ifeq (${ENABLE_RME},1)
|
||||
BL31_CPPFLAGS += -DPLAT_XLAT_TABLES_DYNAMIC
|
||||
endif
|
||||
|
||||
ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
|
||||
ifeq (${ARCH},aarch32)
|
||||
BL32_CPPFLAGS += -DPLAT_RO_XLAT_TABLES
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
#
|
||||
# Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
|
||||
# Copyright (c) 2021-2022, ARM Limited and Contributors. All rights reserved.
|
||||
#
|
||||
# SPDX-License-Identifier: BSD-3-Clause
|
||||
#
|
||||
|
|
@ -12,7 +12,8 @@ include services/std_svc/rmmd/trp/trp.mk
|
|||
|
||||
RMMD_SOURCES += $(addprefix services/std_svc/rmmd/, \
|
||||
${ARCH}/rmmd_helpers.S \
|
||||
rmmd_main.c)
|
||||
rmmd_main.c \
|
||||
rmmd_attest.c)
|
||||
|
||||
# Let the top-level Makefile know that we intend to include RMM image
|
||||
NEED_RMM := yes
|
||||
|
|
|
|||
166
services/std_svc/rmmd/rmmd_attest.c
Normal file
166
services/std_svc/rmmd/rmmd_attest.c
Normal file
|
|
@ -0,0 +1,166 @@
|
|||
/*
|
||||
* Copyright (c) 2022, Arm Limited. All rights reserved.
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
*/
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <common/debug.h>
|
||||
#include <lib/spinlock.h>
|
||||
#include <lib/xlat_tables/xlat_tables_v2.h>
|
||||
#include <plat/common/platform.h>
|
||||
#include "rmmd_private.h"
|
||||
#include <services/rmmd_svc.h>
|
||||
|
||||
static spinlock_t lock;
|
||||
|
||||
/* For printing Realm attestation token hash */
|
||||
#define DIGITS_PER_BYTE 2UL
|
||||
#define LENGTH_OF_TERMINATING_ZERO_IN_BYTES 1UL
|
||||
#define BYTES_PER_LINE_BASE 4UL
|
||||
|
||||
static void print_challenge(uint8_t *hash, size_t hash_size)
|
||||
{
|
||||
size_t leftover;
|
||||
/*
|
||||
* bytes_per_line is always a power of two, so it can be used to
|
||||
* construct mask with it when it is necessary to count remainder.
|
||||
*
|
||||
*/
|
||||
const size_t bytes_per_line = 1 << BYTES_PER_LINE_BASE;
|
||||
char hash_text[(1 << BYTES_PER_LINE_BASE) * DIGITS_PER_BYTE +
|
||||
LENGTH_OF_TERMINATING_ZERO_IN_BYTES];
|
||||
const char hex_chars[] = {'0', '1', '2', '3', '4', '5', '6', '7',
|
||||
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0U; i < hash_size; ++i) {
|
||||
hash_text[(i & (bytes_per_line - 1)) * DIGITS_PER_BYTE] =
|
||||
hex_chars[hash[i] >> 4];
|
||||
hash_text[(i & (bytes_per_line - 1)) * DIGITS_PER_BYTE + 1] =
|
||||
hex_chars[hash[i] & 0x0f];
|
||||
if (((i + 1) & (bytes_per_line - 1)) == 0U) {
|
||||
hash_text[bytes_per_line * DIGITS_PER_BYTE] = '\0';
|
||||
VERBOSE("hash part %u = %s\n",
|
||||
(i >> BYTES_PER_LINE_BASE) + 1, hash_text);
|
||||
}
|
||||
}
|
||||
|
||||
leftover = (size_t)i & (bytes_per_line - 1);
|
||||
|
||||
if (leftover != 0UL) {
|
||||
hash_text[leftover * DIGITS_PER_BYTE] = '\0';
|
||||
VERBOSE("hash part %u = %s\n", (i >> BYTES_PER_LINE_BASE) + 1,
|
||||
hash_text);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* TODO: Have different error codes for different errors so that the caller can
|
||||
* differentiate various error cases.
|
||||
*/
|
||||
int rmmd_attest_get_platform_token(uint64_t buf_pa, uint64_t *buf_len, uint64_t challenge_hash_len)
|
||||
{
|
||||
int err;
|
||||
uintptr_t va;
|
||||
uint8_t temp_buf[SHA512_DIGEST_SIZE];
|
||||
|
||||
/*
|
||||
* TODO: Currently we don't validate incoming buf_pa. This is a
|
||||
* prototype and we will need to allocate static buffer for EL3-RMM
|
||||
* communication.
|
||||
*/
|
||||
|
||||
/* We need a page of buffer to pass data */
|
||||
if (*buf_len != PAGE_SIZE) {
|
||||
ERROR("Invalid buffer length\n");
|
||||
return RMMD_ERR_INVAL;
|
||||
}
|
||||
|
||||
if ((challenge_hash_len != SHA256_DIGEST_SIZE) &&
|
||||
(challenge_hash_len != SHA384_DIGEST_SIZE) &&
|
||||
(challenge_hash_len != SHA512_DIGEST_SIZE)) {
|
||||
ERROR("Invalid hash size: %lu\n", challenge_hash_len);
|
||||
return RMMD_ERR_INVAL;
|
||||
}
|
||||
|
||||
spin_lock(&lock);
|
||||
|
||||
/* Map the buffer that was provided by the RMM. */
|
||||
err = mmap_add_dynamic_region_alloc_va(buf_pa, &va, PAGE_SIZE,
|
||||
MT_RW_DATA | MT_REALM);
|
||||
if (err != 0) {
|
||||
ERROR("mmap_add_dynamic_region_alloc_va failed: %d (%p).\n"
|
||||
, err, (void *)buf_pa);
|
||||
spin_unlock(&lock);
|
||||
return RMMD_ERR_NOMEM;
|
||||
}
|
||||
|
||||
(void)memcpy(temp_buf, (void *)va, challenge_hash_len);
|
||||
|
||||
print_challenge((uint8_t *)temp_buf, challenge_hash_len);
|
||||
|
||||
/* Get the platform token. */
|
||||
err = plat_get_cca_attest_token(va,
|
||||
buf_len, (uintptr_t)temp_buf, challenge_hash_len);
|
||||
|
||||
if (err != 0) {
|
||||
ERROR("Failed to get platform token: %d.\n", err);
|
||||
err = RMMD_ERR_UNK;
|
||||
}
|
||||
|
||||
/* Unmap RMM memory. */
|
||||
(void)mmap_remove_dynamic_region(va, PAGE_SIZE);
|
||||
spin_unlock(&lock);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
int rmmd_attest_get_signing_key(uint64_t buf_pa, uint64_t *buf_len,
|
||||
uint64_t ecc_curve)
|
||||
{
|
||||
int err;
|
||||
uintptr_t va;
|
||||
|
||||
/*
|
||||
* TODO: Currently we don't validate incoming buf_pa. This is a
|
||||
* prototype and we will need to allocate static buffer for EL3-RMM
|
||||
* communication.
|
||||
*/
|
||||
|
||||
/* We need a page of buffer to pass data */
|
||||
if (*buf_len != PAGE_SIZE) {
|
||||
ERROR("Invalid buffer length\n");
|
||||
return RMMD_ERR_INVAL;
|
||||
}
|
||||
|
||||
if (ecc_curve != ATTEST_KEY_CURVE_ECC_SECP384R1) {
|
||||
ERROR("Invalid ECC curve specified\n");
|
||||
return RMMD_ERR_INVAL;
|
||||
}
|
||||
|
||||
spin_lock(&lock);
|
||||
|
||||
/* Map the buffer that was provided by the RMM. */
|
||||
err = mmap_add_dynamic_region_alloc_va(buf_pa, &va, PAGE_SIZE,
|
||||
MT_RW_DATA | MT_REALM);
|
||||
if (err != 0) {
|
||||
ERROR("mmap_add_dynamic_region_alloc_va failed: %d (%p).\n"
|
||||
, err, (void *)buf_pa);
|
||||
spin_unlock(&lock);
|
||||
return RMMD_ERR_NOMEM;
|
||||
}
|
||||
|
||||
/* Get the Realm attestation key. */
|
||||
err = plat_get_cca_realm_attest_key(va, buf_len, (unsigned int)ecc_curve);
|
||||
if (err != 0) {
|
||||
ERROR("Failed to get attestation key: %d.\n", err);
|
||||
err = RMMD_ERR_UNK;
|
||||
}
|
||||
|
||||
/* Unmap RMM memory. */
|
||||
(void)mmap_remove_dynamic_region(va, PAGE_SIZE);
|
||||
spin_unlock(&lock);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
|
@ -372,6 +372,12 @@ uint64_t rmmd_rmm_el3_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2,
|
|||
case RMMD_GTSI_UNDELEGATE:
|
||||
ret = gpt_undelegate_pas(x1, PAGE_SIZE_4KB, SMC_FROM_REALM);
|
||||
SMC_RET1(handle, gpt_to_gts_error(ret, smc_fid, x1));
|
||||
case RMMD_ATTEST_GET_PLAT_TOKEN:
|
||||
ret = rmmd_attest_get_platform_token(x1, &x2, x3);
|
||||
SMC_RET2(handle, ret, x2);
|
||||
case RMMD_ATTEST_GET_REALM_KEY:
|
||||
ret = rmmd_attest_get_signing_key(x1, &x2, x3);
|
||||
SMC_RET2(handle, ret, x2);
|
||||
default:
|
||||
WARN("RMMD: Unsupported RMM-EL3 call 0x%08x\n", smc_fid);
|
||||
SMC_RET1(handle, SMC_UNK);
|
||||
|
|
|
|||
|
|
@ -51,6 +51,12 @@ typedef struct rmmd_rmm_context {
|
|||
uint64_t rmmd_rmm_sync_entry(rmmd_rmm_context_t *ctx);
|
||||
__dead2 void rmmd_rmm_sync_exit(uint64_t rc);
|
||||
|
||||
/* Functions implementing attestation utilities for RMM */
|
||||
int rmmd_attest_get_platform_token(uint64_t buf_pa, uint64_t *buf_len,
|
||||
uint64_t challenge_hash_len);
|
||||
int rmmd_attest_get_signing_key(uint64_t buf_pa, uint64_t *buf_len,
|
||||
uint64_t ecc_curve);
|
||||
|
||||
/* Assembly helpers */
|
||||
uint64_t rmmd_rmm_enter(uint64_t *c_rt_ctx);
|
||||
void __dead2 rmmd_rmm_exit(uint64_t c_rt_ctx, uint64_t ret);
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue