/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "host/ble_hs.h"
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#include "host/util/util.h"
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#include "../src/ble_hs_hci_priv.h"
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static int
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ble_hs_util_load_rand_addr(ble_addr_t *addr)
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{
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#if MYNEWT_VAL(BLE_HCI_VS)
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struct ble_hci_vs_rd_static_addr_rp rsp;
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int rc;
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rc = ble_hs_hci_cmd_tx(BLE_HCI_OP(BLE_HCI_OGF_VENDOR,
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BLE_HCI_OCF_VS_RD_STATIC_ADDR),
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NULL, 0, &rsp, sizeof(rsp));
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if (rc == 0) {
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addr->type = BLE_ADDR_RANDOM;
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memcpy(addr->val, rsp.addr, sizeof(addr->val));
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return 0;
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}
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#endif
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return BLE_HS_ENOADDR;
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}
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static int
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ble_hs_util_ensure_rand_addr(void)
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{
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ble_addr_t addr;
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int rc;
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/* If we already have a random address, then we are done. */
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rc = ble_hs_id_copy_addr(BLE_ADDR_RANDOM, NULL, NULL);
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if (rc == 0) {
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return 0;
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}
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/* Otherwise, try to load a random address. */
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rc = ble_hs_util_load_rand_addr(&addr);
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if (rc != 0) {
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/* If it didn't work, generate random address */
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rc = ble_hs_id_gen_rnd(0, &addr);
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if (rc != 0) {
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return rc;
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}
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}
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/* Configure nimble to use the random address. */
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rc = ble_hs_id_set_rnd(addr.val);
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if (rc != 0) {
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return rc;
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}
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return 0;
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}
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int
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ble_hs_util_ensure_addr(int prefer_random)
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{
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int rc;
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if (prefer_random) {
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/* Try to load a random address. */
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rc = ble_hs_util_ensure_rand_addr();
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if (rc == BLE_HS_ENOADDR) {
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/* No random address; try to load a public address. */
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rc = ble_hs_id_copy_addr(BLE_ADDR_PUBLIC, NULL, NULL);
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}
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} else {
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/* Try to load a public address. */
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rc = ble_hs_id_copy_addr(BLE_ADDR_PUBLIC, NULL, NULL);
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if (rc == BLE_HS_ENOADDR) {
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/* No public address; try to load a random address. */
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rc = ble_hs_util_ensure_rand_addr();
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}
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}
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return rc;
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}
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