1 /* 2 * Copyright (c) 2023, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 */ 7 8 #include <psa/client.h> 9 #include <psa_manifest/sid.h> 10 #include <rse_crypto_defs.h> 11 #include <rse_platform_api.h> 12 13 psa_status_t 14 rse_platform_nv_counter_increment(uint32_t counter_id) 15 { 16 struct psa_invec in_vec[1]; 17 18 in_vec[0].base = &counter_id; 19 in_vec[0].len = sizeof(counter_id); 20 21 return psa_call(RSE_PLATFORM_SERVICE_HANDLE, 22 RSE_PLATFORM_API_ID_NV_INCREMENT, 23 in_vec, 1, NULL, 0); 24 } 25 26 psa_status_t 27 rse_platform_nv_counter_read(uint32_t counter_id, 28 uint32_t size, uint8_t *val) 29 { 30 struct psa_invec in_vec[1]; 31 struct psa_outvec out_vec[1]; 32 33 in_vec[0].base = &counter_id; 34 in_vec[0].len = sizeof(counter_id); 35 36 out_vec[0].base = val; 37 out_vec[0].len = size; 38 39 return psa_call(RSE_PLATFORM_SERVICE_HANDLE, 40 RSE_PLATFORM_API_ID_NV_READ, 41 in_vec, 1, out_vec, 1); 42 } 43 44 psa_status_t 45 rse_platform_key_read(enum rse_key_id_builtin_t key, uint8_t *data, 46 size_t data_size, size_t *data_length) 47 { 48 psa_status_t status; 49 50 struct rse_crypto_pack_iovec iov = { 51 .function_id = RSE_CRYPTO_EXPORT_PUBLIC_KEY_SID, 52 .key_id = key, 53 }; 54 55 psa_invec in_vec[] = { 56 {.base = &iov, .len = sizeof(struct rse_crypto_pack_iovec)}, 57 }; 58 psa_outvec out_vec[] = { 59 {.base = data, .len = data_size} 60 }; 61 62 status = psa_call(RSE_CRYPTO_HANDLE, PSA_IPC_CALL, 63 in_vec, IOVEC_LEN(in_vec), 64 out_vec, IOVEC_LEN(out_vec)); 65 66 *data_length = out_vec[0].len; 67 68 return status; 69 } 70