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-rw-r--r--components/service/secure_storage/client/psa/its/its_client.c215
-rw-r--r--components/service/secure_storage/client/psa/its/its_client.h31
2 files changed, 246 insertions, 0 deletions
diff --git a/components/service/secure_storage/client/psa/its/its_client.c b/components/service/secure_storage/client/psa/its/its_client.c
new file mode 100644
index 000000000..54f3efbbe
--- /dev/null
+++ b/components/service/secure_storage/client/psa/its/its_client.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2020, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "its_client.h"
+#include <psa/internal_trusted_storage.h>
+#include <protocols/service/secure_storage/packed-c/secure_storage_proto.h>
+#include <protocols/rpc/common/packed-c/status.h>
+#include <assert.h>
+#include <string.h>
+
+/* Variables */
+static struct rpc_caller *rpc_caller;
+
+psa_status_t psa_its_client_init(struct rpc_caller *caller)
+{
+ rpc_caller = caller;
+
+ return PSA_SUCCESS;
+}
+
+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)
+{
+ uint8_t *request;
+ uint8_t *response;
+ size_t request_length = 0;
+ size_t response_length = 0;
+ struct secure_storage_request_set *request_desc;
+ rpc_call_handle handle;
+ rpc_status_t rpc_status = TS_RPC_CALL_ACCEPTED;
+ psa_status_t psa_status = PSA_SUCCESS;
+
+ /* Validating input parameters */
+ if (p_data == NULL)
+ return PSA_ERROR_INVALID_ARGUMENT;
+
+ request_length = sizeof(*request_desc) + data_length;
+ if (request_length < data_length) {
+ /* size_t overflow */
+ return PSA_ERROR_INVALID_ARGUMENT;
+ }
+
+ handle = rpc_caller_begin(rpc_caller, &request, request_length);
+
+ if (handle) {
+ /* Populating request descriptor */
+ request_desc = (struct secure_storage_request_set *)request;
+ request_desc->uid = uid;
+ request_desc->data_length = data_length;
+ request_desc->create_flags = create_flags;
+ memcpy(&request_desc->p_data, p_data, data_length);
+
+ rpc_status = rpc_caller_invoke(rpc_caller, handle, TS_SECURE_STORAGE_OPCODE_SET,
+ (uint32_t *)&psa_status, &response,
+ &response_length);
+
+ if (rpc_status != TS_RPC_CALL_ACCEPTED) {
+ /* RPC failure */
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ rpc_caller_end(rpc_caller, handle);
+ }
+ else {
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ return psa_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)
+{
+ uint8_t *request;
+ uint8_t *response;
+ size_t response_length = 0;
+ struct secure_storage_request_get *request_desc;
+ rpc_call_handle handle;
+ rpc_status_t rpc_status = TS_RPC_CALL_ACCEPTED;
+ psa_status_t psa_status = PSA_SUCCESS;
+
+ /* Validating input parameters */
+ if (p_data == NULL)
+ return PSA_ERROR_INVALID_ARGUMENT;
+
+ handle = rpc_caller_begin(rpc_caller, &request, sizeof(*request_desc));
+
+ if (handle) {
+ /* Populating request descriptor */
+ request_desc = (struct secure_storage_request_get *)request;
+ request_desc->uid = uid;
+ request_desc->data_offset = data_offset;
+ request_desc->data_size = data_size;
+
+ rpc_status = rpc_caller_invoke(rpc_caller, handle, TS_SECURE_STORAGE_OPCODE_GET,
+ (uint32_t *)&psa_status, &response,
+ &response_length);
+
+ if (rpc_status != TS_RPC_CALL_ACCEPTED ) {
+ /* RPC failure */
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ /* Filling output parameters */
+ if (psa_status == PSA_SUCCESS) {
+ *p_data_length = (response_length <= data_size) ? response_length : data_size;
+ memcpy(p_data, response, *p_data_length);
+ }
+
+ rpc_caller_end(rpc_caller, handle);
+ }
+ else {
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ return psa_status;
+}
+
+psa_status_t psa_its_get_info(psa_storage_uid_t uid,
+ struct psa_storage_info_t *p_info)
+{
+ uint8_t *request;
+ uint8_t *response;
+ size_t response_length = 0;
+ struct secure_storage_request_get_info *request_desc;
+ struct secure_storage_response_get_info *response_desc;
+ rpc_call_handle handle;
+ rpc_status_t rpc_status;
+ psa_status_t psa_status = PSA_ERROR_GENERIC_ERROR;
+
+ /* Validating input parameters */
+ if (p_info == NULL)
+ return PSA_ERROR_INVALID_ARGUMENT;
+
+ handle = rpc_caller_begin(rpc_caller, &request, sizeof(*request_desc));
+
+ if (handle) {
+ /* Populating request descriptor */
+ request_desc = (struct secure_storage_request_get_info *)request;
+ request_desc->uid = uid;
+
+ rpc_status = rpc_caller_invoke(rpc_caller, handle,
+ TS_SECURE_STORAGE_OPCODE_GET_INFO,
+ (uint32_t *)&psa_status, &response,
+ &response_length);
+
+ if (rpc_status != TS_RPC_CALL_ACCEPTED) {
+ /* RPC failure */
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ } else if (response_length && response_length != sizeof(*response_desc)) {
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ if (psa_status == PSA_SUCCESS) {
+ response_desc = (struct secure_storage_response_get_info *)response;
+ p_info->capacity = response_desc->capacity;
+ p_info->size = response_desc->size;
+ p_info->flags = response_desc->flags;
+ } else {
+ p_info->capacity = 0;
+ p_info->size = 0;
+ p_info->flags = PSA_STORAGE_FLAG_NONE;
+ }
+
+ rpc_caller_end(rpc_caller, handle);
+ }
+ else {
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ return psa_status;
+}
+
+psa_status_t psa_its_remove(psa_storage_uid_t uid)
+{
+ uint8_t *request;
+ uint8_t *response;
+ size_t response_length = 0;
+ struct secure_storage_request_remove *request_desc;
+ rpc_call_handle handle;
+ rpc_status_t rpc_status = TS_RPC_CALL_ACCEPTED;
+ psa_status_t psa_status = PSA_SUCCESS;
+
+ handle = rpc_caller_begin(rpc_caller, &request, sizeof(*request_desc));
+
+ if (handle) {
+ /* Populating request descriptor */
+ request_desc = (struct secure_storage_request_remove *)request;
+ request_desc->uid = uid;
+
+ rpc_status = rpc_caller_invoke(rpc_caller, handle, TS_SECURE_STORAGE_OPCODE_REMOVE,
+ (uint32_t *)&psa_status, &response,
+ &response_length);
+
+ if (rpc_status != TS_RPC_CALL_ACCEPTED) {
+ /* RPC failure */
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ rpc_caller_end(rpc_caller, handle);
+ }
+ else {
+ psa_status = PSA_ERROR_GENERIC_ERROR;
+ }
+
+ return psa_status;
+}
diff --git a/components/service/secure_storage/client/psa/its/its_client.h b/components/service/secure_storage/client/psa/its/its_client.h
new file mode 100644
index 000000000..b8b72090d
--- /dev/null
+++ b/components/service/secure_storage/client/psa/its/its_client.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2020, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PSA_ITS_CLIENT_H
+#define PSA_ITS_CLIENT_H
+
+#include <psa/error.h>
+#include <rpc_caller.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Assignes a concrete rpc caller to the ITS library and initialises
+ * the library state.
+ *
+ * @param[in] rpc_caller RPC caller instance
+ *
+ * @return A status indicating the success/failure of the operation
+ */
+psa_status_t psa_its_client_init(struct rpc_caller *caller);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PSA_ITS_CLIENT_H */