bluetooth: rpc: Added functions for internal use

Added serialization of functions required by bluetooth tester
application.

Ref: NCSDK-13233

Signed-off-by: Marcin Jeliński <[email protected]>

Author: maje-emb

subsys/bluetooth/rpc/Kconfig

@@ -108,6 +108,12 @@ config BT_RPC_GATT_BUFFER_SIZE
 
 endif # BT_RPC_HOST
 
+config BT_RPC_INTERNAL_FUNCTIONS
+	bool "Internal functions"
+	default n
+	help
+	  Enable functionality required for internal purposes e.g. testing.
+
 endif # BT_RPC
 
 choice BT_STACK_SELECTION

subsys/bluetooth/rpc/client/CMakeLists.txt

@@ -22,3 +22,8 @@ zephyr_library_sources_ifdef(
 zephyr_library_sources(
   ${ZEPHYR_BASE}/subsys/bluetooth/host/uuid.c
 )
+
+zephyr_library_sources_ifdef(
+  CONFIG_BT_RPC_INTERNAL_FUNCTIONS
+  bt_rpc_internal_client.c
+)

subsys/bluetooth/rpc/client/bt_rpc_internal_client.c

@@ -0,0 +1,34 @@
+/* Copyright (c) 2022 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+#include <zephyr.h>
+
+#include <nrf_rpc_cbor.h>
+
+#include "bt_rpc_common.h"
+#include "serialize.h"
+#include "cbkproxy.h"
+
+#include <logging/log.h>
+
+LOG_MODULE_DECLARE(BT_RPC, CONFIG_BT_RPC_LOG_LEVEL);
+
+bool bt_addr_le_is_bonded(uint8_t id, const bt_addr_le_t *addr)
+{
+	struct nrf_rpc_cbor_ctx ctx;
+	bool result;
+	size_t buffer_size_max = 5;
+
+	buffer_size_max += addr ? sizeof(bt_addr_le_t) : 0;
+
+	NRF_RPC_CBOR_ALLOC(ctx, buffer_size_max);
+
+	ser_encode_uint(&ctx.encoder, id);
+	ser_encode_buffer(&ctx.encoder, addr, sizeof(bt_addr_le_t));
+	nrf_rpc_cbor_cmd_no_err(&bt_rpc_grp, BT_ADDR_LE_IS_BONDED_CMD,
+				&ctx, ser_rsp_decode_bool, &result);
+
+	return result;
+}

subsys/bluetooth/rpc/common/bt_rpc_common.c

@@ -224,7 +224,7 @@ static const CHECK_LIST_ENTRY_TYPE check_table[] = {
 	CHECK_FLAGS(
 		CONFIG_BT_SETTINGS,
 		CONFIG_BT_GATT_CLIENT,
-		0,
+		CONFIG_BT_INTERNAL_FUNCTIONS,
 		0,
 		0,
 		0,

subsys/bluetooth/rpc/common/bt_rpc_common.h

@@ -132,6 +132,8 @@ enum bt_rpc_cmd_from_cli_to_host {
 	BT_ENCRYPT_BE_RPC_CMD,
 	BT_CCM_DECRYPT_RPC_CMD,
 	BT_CCM_ENCRYPT_RPC_CMD,
+	/* internal.h API */
+	BT_ADDR_LE_IS_BONDED_CMD,
 };
 
 /** @brief Host commands IDs used in bluetooth API serialization.

subsys/bluetooth/rpc/host/CMakeLists.txt

@@ -17,3 +17,13 @@ zephyr_library_sources_ifdef(
   bt_rpc_conn_host.c
   bt_rpc_gatt_host.c
 )
+
+zephyr_library_sources_ifdef(
+  CONFIG_BT_RPC_INTERNAL_FUNCTIONS
+  bt_rpc_internal_host.c
+)
+
+zephyr_library_include_directories_ifdef(
+  CONFIG_BT_RPC_INTERNAL_FUNCTIONS
+  ${ZEPHYR_BASE}/subsys/bluetooth/host
+)

subsys/bluetooth/rpc/host/bt_rpc_internal_host.c

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2022 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+#include <zephyr.h>
+
+#include <bluetooth/conn.h>
+#include <hci_core.h>
+
+#include <nrf_rpc_cbor.h>
+
+#include "bt_rpc_common.h"
+#include "serialize.h"
+#include "cbkproxy.h"
+
+#include <logging/log.h>
+
+LOG_MODULE_DECLARE(BT_RPC, CONFIG_BT_RPC_LOG_LEVEL);
+
+static void report_decoding_error(uint8_t cmd_evt_id, void *data)
+{
+	nrf_rpc_err(-EBADMSG, NRF_RPC_ERR_SRC_RECV, &bt_rpc_grp, cmd_evt_id,
+		    NRF_RPC_PACKET_TYPE_CMD);
+}
+
+static void bt_addr_le_is_bonded_rpc_handler(CborValue *value, void *handler_data)
+{
+	bt_addr_le_t addr_data;
+	const bt_addr_le_t *addr;
+	uint8_t id;
+	bool result;
+
+	id = ser_decode_uint(value);
+	addr = ser_decode_buffer(value, &addr_data, sizeof(bt_addr_le_t));
+
+	if (!ser_decoding_done_and_check(value)) {
+		goto decoding_error;
+	}
+
+	result = bt_addr_le_is_bonded(id, addr);
+	ser_rsp_send_bool(result);
+
+	return;
+
+decoding_error:
+	report_decoding_error(BT_ADDR_LE_IS_BONDED_CMD, handler_data);
+}
+
+NRF_RPC_CBOR_CMD_DECODER(bt_rpc_grp, bt_addr_le_is_bonded, BT_ADDR_LE_IS_BONDED_CMD,
+			 bt_addr_le_is_bonded_rpc_handler, NULL);