/* * Copyright (c) 2019, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause * */ #include "psa/internal_trusted_storage.h" #include "tfm_api.h" #include "psa/client.h" #include "psa_manifest/sid.h" #define IOVEC_LEN(x) (sizeof(x)/sizeof(x[0])) psa_status_t psa_its_set(psa_storage_uid_t uid, size_t data_length, const void *p_data, psa_storage_create_flags_t create_flags) { psa_status_t status; psa_handle_t handle; psa_invec in_vec[] = { { .base = &uid, .len = sizeof(uid) }, { .base = p_data, .len = data_length }, { .base = &create_flags, .len = sizeof(create_flags) } }; handle = psa_connect(TFM_ITS_SET_SID, TFM_ITS_SET_VERSION); if (!PSA_HANDLE_IS_VALID(handle)) { return PSA_ERROR_GENERIC_ERROR; } status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec), NULL, 0); psa_close(handle); if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) { return PSA_ERROR_INVALID_ARGUMENT; } return status; } psa_status_t psa_its_get(psa_storage_uid_t uid, size_t data_offset, size_t data_size, void *p_data, size_t *p_data_length) { psa_status_t status; psa_handle_t handle; psa_invec in_vec[] = { { .base = &uid, .len = sizeof(uid) }, { .base = &data_offset, .len = sizeof(data_offset) } }; psa_outvec out_vec[] = { { .base = p_data, .len = data_size } }; if (p_data_length == NULL) { return PSA_ERROR_INVALID_ARGUMENT; } handle = psa_connect(TFM_ITS_GET_SID, TFM_ITS_GET_VERSION); if (!PSA_HANDLE_IS_VALID(handle)) { return PSA_ERROR_GENERIC_ERROR; } status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec), out_vec, IOVEC_LEN(out_vec)); psa_close(handle); if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) { return PSA_ERROR_INVALID_ARGUMENT; } *p_data_length = out_vec[0].len; return status; } psa_status_t psa_its_get_info(psa_storage_uid_t uid, struct psa_storage_info_t *p_info) { psa_status_t status; psa_handle_t handle; psa_invec in_vec[] = { { .base = &uid, .len = sizeof(uid) } }; psa_outvec out_vec[] = { { .base = p_info, .len = sizeof(*p_info) } }; handle = psa_connect(TFM_ITS_GET_INFO_SID, TFM_ITS_GET_INFO_VERSION); if (!PSA_HANDLE_IS_VALID(handle)) { return PSA_ERROR_GENERIC_ERROR; } status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec), out_vec, IOVEC_LEN(out_vec)); psa_close(handle); if (status == (psa_status_t)TFM_ERROR_INVALID_PARAMETER) { return PSA_ERROR_INVALID_ARGUMENT; } return status; } psa_status_t psa_its_remove(psa_storage_uid_t uid) { psa_status_t status; psa_handle_t handle; psa_invec in_vec[] = { { .base = &uid, .len = sizeof(uid) } }; handle = psa_connect(TFM_ITS_REMOVE_SID, TFM_ITS_REMOVE_VERSION); if (!PSA_HANDLE_IS_VALID(handle)) { return PSA_ERROR_GENERIC_ERROR; } status = psa_call(handle, PSA_IPC_CALL, in_vec, IOVEC_LEN(in_vec), NULL, 0); psa_close(handle); return status; }