kopia lustrzana https://github.com/espressif/esp-idf
344 wiersze
9.3 KiB
C
344 wiersze
9.3 KiB
C
/* Bluetooth Mesh */
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/*
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* SPDX-FileCopyrightText: 2017 Intel Corporation
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* SPDX-FileContributor: 2020-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <string.h>
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#include <errno.h>
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#include "mesh.h"
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#include "lpn.h"
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#include "crypto.h"
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#include "access.h"
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#include "foundation.h"
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#include "transport.h"
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#include "mesh_main.h"
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#include "settings.h"
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static struct bt_mesh_model *find_model(uint16_t elem_addr, uint16_t cid, uint16_t mod_id)
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{
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struct bt_mesh_elem *elem = NULL;
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if (!BLE_MESH_ADDR_IS_UNICAST(elem_addr)) {
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BT_ERR("Invalid unicast address 0x%04x", elem_addr);
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return NULL;
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}
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elem = bt_mesh_elem_find(elem_addr);
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if (elem == NULL) {
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BT_ERR("No element found, addr 0x%04x", elem_addr);
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return NULL;
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}
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if (cid == BLE_MESH_CID_NVAL) {
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return bt_mesh_model_find(elem, mod_id);
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} else {
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return bt_mesh_model_find_vnd(elem, cid, mod_id);
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}
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}
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int bt_mesh_model_subscribe_group_addr(uint16_t elem_addr, uint16_t cid,
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uint16_t mod_id, uint16_t group_addr)
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{
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struct bt_mesh_model *model = NULL;
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int i;
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model = find_model(elem_addr, cid, mod_id);
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if (model == NULL) {
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BT_ERR("Subscribe, model not found, cid 0x%04x, mod_id 0x%04x", cid, mod_id);
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return -ENODEV;
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}
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if (!BLE_MESH_ADDR_IS_GROUP(group_addr)) {
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BT_ERR("Subscribe, not a group address 0x%04x", group_addr);
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return -EINVAL;
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}
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if (bt_mesh_model_find_group(model, group_addr)) {
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BT_INFO("Group address 0x%04x already exists", group_addr);
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return 0;
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}
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for (i = 0; i < ARRAY_SIZE(model->groups); i++) {
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if (model->groups[i] == BLE_MESH_ADDR_UNASSIGNED) {
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model->groups[i] = group_addr;
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if (IS_ENABLED(CONFIG_BLE_MESH_SETTINGS)) {
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bt_mesh_store_mod_sub(model);
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}
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if (IS_ENABLED(CONFIG_BLE_MESH_LOW_POWER)) {
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bt_mesh_lpn_group_add(group_addr);
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}
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BT_INFO("Subscribe group address 0x%04x", group_addr);
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return 0;
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}
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}
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BT_ERR("Subscribe, model sub is full!");
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return -ENOMEM;
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}
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int bt_mesh_model_unsubscribe_group_addr(uint16_t elem_addr, uint16_t cid,
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uint16_t mod_id, uint16_t group_addr)
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{
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struct bt_mesh_model *model = NULL;
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uint16_t *match = NULL;
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model = find_model(elem_addr, cid, mod_id);
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if (model == NULL) {
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BT_ERR("Unsubscribe, model not found, cid 0x%04x, mod_id 0x%04x", cid, mod_id);
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return -ENODEV;
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}
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if (!BLE_MESH_ADDR_IS_GROUP(group_addr)) {
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BT_ERR("Unsubscribe, not a group address 0x%04x", group_addr);
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return -EINVAL;
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}
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match = bt_mesh_model_find_group(model, group_addr);
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if (match == NULL) {
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BT_WARN("Group address 0x%04x not exists", group_addr);
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return -EEXIST;
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}
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*match = BLE_MESH_ADDR_UNASSIGNED;
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if (IS_ENABLED(CONFIG_BLE_MESH_SETTINGS)) {
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bt_mesh_store_mod_sub(model);
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}
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if (IS_ENABLED(CONFIG_BLE_MESH_LOW_POWER)) {
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bt_mesh_lpn_group_del(&group_addr, 1);
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}
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BT_INFO("Unsubscribe group address 0x%04x", group_addr);
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return 0;
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}
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#if CONFIG_BLE_MESH_NODE
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const uint8_t *bt_mesh_node_get_local_net_key(uint16_t net_idx)
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{
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struct bt_mesh_subnet *sub = NULL;
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if (net_idx > 0xFFF) {
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BT_ERR("Invalid NetKeyIndex 0x%04x", net_idx);
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return NULL;
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}
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sub = bt_mesh_subnet_get(net_idx);
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if (!sub) {
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BT_ERR("NetKey 0x%04x not exists", net_idx);
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return NULL;
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}
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return sub->kr_flag ? sub->keys[1].net : sub->keys[0].net;
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}
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const uint8_t *bt_mesh_node_get_local_app_key(uint16_t app_idx)
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{
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struct bt_mesh_app_key *key = NULL;
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if (app_idx > 0xFFF) {
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BT_ERR("Invalid AppKeyIndex 0x%04x", app_idx);
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return NULL;
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}
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key = bt_mesh_app_key_find(app_idx);
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if (!key) {
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BT_ERR("AppKey 0x%04x not exists", app_idx);
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return NULL;
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}
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return key->updated ? key->keys[1].val : key->keys[0].val;
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}
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int bt_mesh_node_local_net_key_add(uint16_t net_idx, const uint8_t net_key[16])
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{
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struct bt_mesh_subnet *sub = NULL;
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int err = 0;
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int i;
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if (net_idx > 0xFFF || net_key == NULL) {
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BT_ERR("%s, Invalid parameter", __func__);
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return -EINVAL;
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}
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if (!bt_mesh_is_provisioned()) {
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BT_ERR("Not provisioned, failed to add NetKey");
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return -EIO;
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}
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sub = bt_mesh_subnet_get(net_idx);
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if (sub) {
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BT_WARN("NetKey 0x%04x already exists", net_idx);
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return -EEXIST;
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}
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for (i = 0; i < ARRAY_SIZE(bt_mesh.sub); i++) {
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if (bt_mesh.sub[i].net_idx != BLE_MESH_KEY_UNUSED) {
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if ((bt_mesh.sub[i].kr_flag == false &&
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memcmp(bt_mesh.sub[i].keys[0].net, net_key, 16) == 0) ||
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(bt_mesh.sub[i].kr_flag == true &&
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memcmp(bt_mesh.sub[i].keys[1].net, net_key, 16) == 0)) {
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BT_WARN("Key value %s already exists", bt_hex(net_key, 16));
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return -EEXIST;
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}
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}
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}
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for (i = 0; i < ARRAY_SIZE(bt_mesh.sub); i++) {
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if (bt_mesh.sub[i].net_idx == BLE_MESH_KEY_UNUSED) {
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sub = &bt_mesh.sub[i];
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break;
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}
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}
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if (sub == NULL) {
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BT_ERR("NetKey is full!");
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return -ENOMEM;
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}
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err = bt_mesh_net_keys_create(&sub->keys[0], net_key);
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if (err) {
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BT_ERR("Failed to create keys for NetKey 0x%04x", net_idx);
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return -EIO;
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}
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sub->net_idx = net_idx;
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sub->kr_flag = false;
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sub->kr_phase = BLE_MESH_KR_NORMAL;
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if (IS_ENABLED(CONFIG_BLE_MESH_GATT_PROXY_SERVER)) {
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sub->node_id = BLE_MESH_NODE_IDENTITY_STOPPED;
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} else {
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sub->node_id = BLE_MESH_NODE_IDENTITY_NOT_SUPPORTED;
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}
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if (IS_ENABLED(CONFIG_BLE_MESH_SETTINGS)) {
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BT_DBG("Storing NetKey persistently");
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bt_mesh_store_subnet(sub);
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}
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/* Make sure we have valid beacon data to be sent */
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bt_mesh_net_beacon_update(sub);
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return 0;
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}
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int bt_mesh_node_local_app_key_add(uint16_t net_idx, uint16_t app_idx,
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const uint8_t app_key[16])
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{
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struct bt_mesh_app_key *key = NULL;
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if (net_idx > 0xFFF || app_idx > 0xFFF || app_key == NULL) {
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BT_ERR("%s, Invalid parameter", __func__);
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return -EINVAL;
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}
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if (!bt_mesh_is_provisioned()) {
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BT_ERR("Not provisioned, failed to add AppKey");
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return -EIO;
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}
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if (bt_mesh_subnet_get(net_idx) == NULL) {
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BT_ERR("Subnet 0x%04x not exists", net_idx);
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return -EIO;
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}
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key = bt_mesh_app_key_find(app_idx);
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if (key) {
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BT_WARN("AppKey 0x%04x already exists", app_idx);
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return -EEXIST;
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}
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for (int i = 0; i < ARRAY_SIZE(bt_mesh.app_keys); i++) {
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if (bt_mesh.app_keys[i].net_idx != BLE_MESH_KEY_UNUSED) {
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if ((bt_mesh.app_keys[i].updated == false &&
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memcmp(bt_mesh.app_keys[i].keys[0].val, app_key, 16) == 0) ||
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(bt_mesh.app_keys[i].updated == true &&
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memcmp(bt_mesh.app_keys[i].keys[1].val, app_key, 16) == 0)) {
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BT_WARN("Key value %s already exists", bt_hex(app_key, 16));
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return -EEXIST;
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}
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}
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}
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key = bt_mesh_app_key_alloc(app_idx);
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if (key) {
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struct bt_mesh_app_keys *keys = &key->keys[0];
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if (bt_mesh_app_id(app_key, &keys->id)) {
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BT_ERR("Failed to generate AID");
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return -EIO;
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}
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key->net_idx = net_idx;
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key->app_idx = app_idx;
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key->updated = false;
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memcpy(keys->val, app_key, 16);
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if (IS_ENABLED(CONFIG_BLE_MESH_SETTINGS)) {
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BT_DBG("Storing AppKey persistently");
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bt_mesh_store_app_key(key);
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}
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BT_INFO("Add AppKey 0x%04x, NetKeyIndex 0x%04x", app_idx, net_idx);
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return 0;
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}
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BT_ERR("AppKey is full!");
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return -ENOMEM;
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}
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int bt_mesh_node_bind_app_key_to_model(uint16_t elem_addr, uint16_t mod_id,
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uint16_t cid, uint16_t app_idx)
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{
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struct bt_mesh_model *model = NULL;
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int i;
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if (!bt_mesh_is_provisioned()) {
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BT_ERR("Not provisioned, failed to bind AppKey");
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return -EIO;
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}
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model = find_model(elem_addr, cid, mod_id);
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if (model == NULL) {
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BT_ERR("Bind, model(id 0x%04x, cid 0x%04x) not found", mod_id, cid);
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return -ENODEV;
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}
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if (bt_mesh_app_key_find(app_idx) == NULL) {
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BT_ERR("Bind, AppKey 0x%03x not exists", app_idx);
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return -ENODEV;
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}
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for (i = 0; i < ARRAY_SIZE(model->keys); i++) {
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if (model->keys[i] == app_idx) {
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BT_WARN("Already bound to AppKey 0x%04x", app_idx);
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return -EALREADY;
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}
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}
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for (i = 0; i < ARRAY_SIZE(model->keys); i++) {
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if (model->keys[i] == BLE_MESH_KEY_UNUSED) {
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model->keys[i] = app_idx;
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if (IS_ENABLED(CONFIG_BLE_MESH_SETTINGS)) {
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bt_mesh_store_mod_bind(model);
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}
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BT_INFO("Model(id 0x%04x, cid 0x%04x) bound to AppKey 0x%04x", mod_id, cid, app_idx);
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return 0;
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}
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}
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BT_ERR("Model bound is full!");
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return -ENOMEM;
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}
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#endif /* CONFIG_BLE_MESH_NODE */
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