1 /* 2 * Copyright (C) 2019 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define __BTSTACK_FILE__ "mesh.c" 39 40 #include <string.h> 41 #include <stdio.h> 42 43 #include "mesh/mesh.h" 44 45 #include "btstack_util.h" 46 #include "btstack_config.h" 47 #include "btstack_event.h" 48 #include "btstack_tlv.h" 49 #include "btstack_memory.h" 50 #include "btstack_debug.h" 51 52 #include "mesh/adv_bearer.h" 53 #include "mesh/beacon.h" 54 #include "mesh/gatt_bearer.h" 55 #include "mesh/mesh_access.h" 56 #include "mesh/mesh_configuration_server.h" 57 #include "mesh/mesh_foundation.h" 58 #include "mesh/mesh_generic_model.h" 59 #include "mesh/mesh_generic_server.h" 60 #include "mesh/mesh_iv_index_seq_number.h" 61 #include "mesh/mesh_lower_transport.h" 62 #include "mesh/mesh_peer.h" 63 #include "mesh/mesh_proxy.h" 64 #include "mesh/mesh_upper_transport.h" 65 #include "mesh/mesh_virtual_addresses.h" 66 #include "mesh/pb_adv.h" 67 #include "mesh/pb_gatt.h" 68 #include "mesh/provisioning.h" 69 #include "mesh/provisioning_device.h" 70 71 // Persistent storage structures 72 73 typedef struct { 74 uint16_t hash; 75 uint8_t label_uuid[16]; 76 } mesh_persistent_virtual_address_t; 77 78 typedef struct { 79 uint16_t netkey_index; 80 81 uint8_t version; 82 83 // net_key from provisioner or Config Model Client 84 uint8_t net_key[16]; 85 86 // derived data 87 88 // k1 89 uint8_t identity_key[16]; 90 uint8_t beacon_key[16]; 91 92 // k3 93 uint8_t network_id[8]; 94 95 // k2 96 uint8_t nid; 97 uint8_t encryption_key[16]; 98 uint8_t privacy_key[16]; 99 } mesh_persistent_net_key_t; 100 101 typedef struct { 102 uint16_t netkey_index; 103 uint16_t appkey_index; 104 uint8_t aid; 105 uint8_t version; 106 uint8_t key[16]; 107 } mesh_persistent_app_key_t; 108 109 typedef struct { 110 uint8_t gatt_proxy; 111 uint8_t beacon; 112 uint8_t default_ttl; 113 uint8_t network_transmit; 114 uint8_t relay; 115 uint8_t relay_retransmit; 116 uint8_t friend; 117 } mesh_persistent_foundation_t; 118 119 typedef struct { 120 uint32_t iv_index; 121 uint32_t seq_number; 122 } iv_index_and_sequence_number_t; 123 124 static btstack_packet_handler_t provisioning_device_packet_handler; 125 static btstack_packet_callback_registration_t hci_event_callback_registration; 126 static int provisioned; 127 128 // Mandatory Confiuration Server 129 static mesh_model_t mesh_configuration_server_model; 130 131 // Mandatory Health Server 132 static mesh_model_t mesh_health_server_model; 133 static mesh_configuration_server_model_context_t mesh_configuration_server_model_context; 134 135 // Random UUID on start 136 static btstack_crypto_random_t mesh_access_crypto_random; 137 static uint8_t random_device_uuid[16]; 138 139 // TLV 140 static const btstack_tlv_t * btstack_tlv_singleton_impl; 141 static void * btstack_tlv_singleton_context; 142 143 // IV Index persistence 144 static uint32_t sequence_number_last_stored; 145 static uint32_t sequence_number_storage_trigger; 146 147 148 void mesh_access_setup_from_provisioning_data(const mesh_provisioning_data_t * provisioning_data){ 149 150 // set iv_index and iv index update active 151 int iv_index_update_active = (provisioning_data->flags & 2) >> 1; 152 mesh_iv_index_recovered(iv_index_update_active, provisioning_data->iv_index); 153 154 // set unicast address 155 mesh_node_primary_element_address_set(provisioning_data->unicast_address); 156 157 // set device_key 158 mesh_transport_set_device_key(provisioning_data->device_key); 159 160 if (provisioning_data->network_key){ 161 162 // setup primary network with provisioned netkey 163 mesh_network_key_add(provisioning_data->network_key); 164 165 // setup primary network 166 mesh_subnet_setup_for_netkey_index(provisioning_data->network_key->netkey_index); 167 168 // start sending Secure Network Beacons 169 mesh_subnet_t * provisioned_subnet = mesh_subnet_get_by_netkey_index(provisioning_data->network_key->netkey_index); 170 beacon_secure_network_start(provisioned_subnet); 171 } 172 173 // Mesh Proxy 174 #ifdef ENABLE_MESH_PROXY_SERVER 175 // Setup Proxy 176 mesh_proxy_init(provisioning_data->unicast_address); 177 mesh_proxy_start_advertising_with_network_id(); 178 #endif 179 } 180 181 static void mesh_access_setup_unprovisioned_device(void * arg){ 182 // set random value 183 if (arg == NULL){ 184 mesh_node_set_device_uuid(random_device_uuid); 185 } 186 187 #ifdef ENABLE_MESH_PB_ADV 188 // PB-ADV 189 beacon_unprovisioned_device_start(mesh_node_get_device_uuid(), 0); 190 #endif 191 #ifdef ENABLE_MESH_PB_GATT 192 mesh_proxy_start_advertising_unprovisioned_device(); 193 #endif 194 } 195 196 void mesh_access_setup_without_provisiong_data(void){ 197 const uint8_t * device_uuid = mesh_node_get_device_uuid(); 198 if (device_uuid){ 199 mesh_access_setup_unprovisioned_device((void *)device_uuid); 200 } else{ 201 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_unprovisioned_device, NULL); 202 } 203 } 204 205 static void mesh_provisioning_message_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 206 mesh_provisioning_data_t provisioning_data; 207 208 switch(packet[0]){ 209 case HCI_EVENT_MESH_META: 210 switch(packet[2]){ 211 case MESH_SUBEVENT_PB_PROV_COMPLETE: 212 // get provisioning data 213 provisioning_device_data_get(&provisioning_data); 214 215 // and store in TLV 216 mesh_node_store_provisioning_data(&provisioning_data); 217 218 // setup node after provisioned 219 mesh_access_setup_from_provisioning_data(&provisioning_data); 220 221 // start advertising with node id after provisioning 222 mesh_proxy_set_advertising_with_node_id(provisioning_data.network_key->netkey_index, MESH_NODE_IDENTITY_STATE_ADVERTISING_RUNNING); 223 224 provisioned = 1; 225 break; 226 default: 227 break; 228 } 229 break; 230 default: 231 break; 232 } 233 if (provisioning_device_packet_handler == NULL) return; 234 235 // forward 236 (*provisioning_device_packet_handler)(packet_type, channel, packet, size); 237 } 238 239 static void hci_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 240 UNUSED(channel); 241 UNUSED(size); 242 243 switch (packet_type) { 244 case HCI_EVENT_PACKET: 245 switch (hci_event_packet_get_type(packet)) { 246 case BTSTACK_EVENT_STATE: 247 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 248 // get TLV instance 249 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 250 251 // startup from provisioning data stored in TLV 252 provisioned = mesh_node_startup_from_tlv(); 253 break; 254 255 case HCI_EVENT_DISCONNECTION_COMPLETE: 256 // enable PB_GATT 257 if (provisioned == 0){ 258 mesh_proxy_start_advertising_unprovisioned_device(); 259 } else { 260 #ifdef ENABLE_MESH_PROXY_SERVER 261 mesh_proxy_start_advertising_with_network_id(); 262 #endif 263 } 264 break; 265 266 case HCI_EVENT_LE_META: 267 if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break; 268 // disable PB_GATT 269 mesh_proxy_stop_advertising_unprovisioned_device(); 270 break; 271 default: 272 break; 273 } 274 break; 275 } 276 } 277 278 // Foundation state 279 static const uint32_t mesh_foundation_state_tag = ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'N' << 8) | ((uint32_t) 'D' << 8); 280 281 void mesh_foundation_state_load(void){ 282 mesh_persistent_foundation_t data; 283 284 int foundation_state_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 285 if (foundation_state_len != sizeof(data)) return; 286 287 mesh_foundation_gatt_proxy_set(data.gatt_proxy); 288 mesh_foundation_beacon_set(data.gatt_proxy); 289 mesh_foundation_default_ttl_set(data.default_ttl); 290 mesh_foundation_friend_set(data.friend); 291 mesh_foundation_network_transmit_set(data.network_transmit); 292 mesh_foundation_relay_set(data.relay); 293 mesh_foundation_relay_retransmit_set(data.relay_retransmit); 294 } 295 296 void mesh_foundation_state_store(void){ 297 mesh_persistent_foundation_t data; 298 data.gatt_proxy = mesh_foundation_gatt_proxy_get(); 299 data.gatt_proxy = mesh_foundation_beacon_get(); 300 data.default_ttl = mesh_foundation_default_ttl_get(); 301 data.friend = mesh_foundation_friend_get(); 302 data.network_transmit = mesh_foundation_network_transmit_get(); 303 data.relay = mesh_foundation_relay_get(); 304 data.relay_retransmit = mesh_foundation_relay_retransmit_get(); 305 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 306 } 307 308 // Mesh Virtual Address Management 309 static uint32_t mesh_virtual_address_tag_for_pseudo_dst(uint16_t pseudo_dst){ 310 return ((uint32_t) 'M' << 24) | ((uint32_t) 'V' << 16) | ((uint32_t) pseudo_dst); 311 } 312 313 static void mesh_store_virtual_address(uint16_t pseudo_dest, uint16_t hash, const uint8_t * label_uuid){ 314 mesh_persistent_virtual_address_t data; 315 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 316 data.hash = hash; 317 memcpy(data.label_uuid, label_uuid, 16); 318 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 319 } 320 321 static void mesh_delete_virtual_address(uint16_t pseudo_dest){ 322 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 323 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 324 } 325 326 void mesh_load_virtual_addresses(void){ 327 uint16_t pseudo_dst; 328 for (pseudo_dst = 0x8000; pseudo_dst < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dst++){ 329 mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 330 mesh_persistent_virtual_address_t data; 331 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 332 int virtual_address_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 333 if (virtual_address_len == 0) return; 334 335 mesh_virtual_address_t * virtual_address = btstack_memory_mesh_virtual_address_get(); 336 if (virtual_address == NULL) return; 337 338 virtual_address->pseudo_dst = pseudo_dst; 339 virtual_address->hash = data.hash; 340 memcpy(virtual_address->label_uuid, data.label_uuid, 16); 341 mesh_virtual_address_add(virtual_address); 342 } 343 } 344 345 void mesh_delete_virtual_addresses(void){ 346 uint16_t pseudo_dest; 347 for (pseudo_dest = 0x8000; pseudo_dest < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dest++){ 348 mesh_delete_virtual_address(pseudo_dest); 349 } 350 } 351 352 void mesh_virtual_address_decrease_refcount(mesh_virtual_address_t * virtual_address){ 353 if (virtual_address == NULL){ 354 log_error("virtual_address == NULL"); 355 } 356 // decrease refcount 357 virtual_address->ref_count--; 358 // Free virtual address if ref count reaches zero 359 if (virtual_address->ref_count > 0) return; 360 // delete from TLV 361 mesh_delete_virtual_address(virtual_address->pseudo_dst); 362 // remove from list 363 mesh_virtual_address_remove(virtual_address); 364 // free memory 365 btstack_memory_mesh_virtual_address_free(virtual_address); 366 } 367 368 void mesh_virtual_address_increase_refcount(mesh_virtual_address_t * virtual_address){ 369 if (virtual_address == NULL){ 370 log_error("virtual_address == NULL"); 371 } 372 virtual_address->ref_count++; 373 if (virtual_address->ref_count > 1) return; 374 // store in TLV 375 mesh_store_virtual_address(virtual_address->pseudo_dst, virtual_address->hash, virtual_address->label_uuid); 376 } 377 378 // Mesh Subscriptions 379 static uint32_t mesh_model_subscription_tag_for_index(uint16_t internal_model_id){ 380 return ((uint32_t) 'M' << 24) | ((uint32_t) 'S' << 16) | ((uint32_t) internal_model_id); 381 } 382 383 static void mesh_model_load_subscriptions(mesh_model_t * mesh_model){ 384 uint32_t tag = mesh_model_subscription_tag_for_index(mesh_model->mid); 385 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &mesh_model->subscriptions, sizeof(mesh_model->subscriptions)); 386 // update ref count 387 388 // increase ref counts for virtual subscriptions 389 uint16_t i; 390 for (i = 0; i<MAX_NR_MESH_SUBSCRIPTION_PER_MODEL ; i++){ 391 uint16_t src = mesh_model->subscriptions[i]; 392 if (mesh_network_address_virtual(src)){ 393 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 394 mesh_virtual_address_increase_refcount(virtual_address); 395 } 396 } 397 } 398 399 void mesh_model_store_subscriptions(mesh_model_t * model){ 400 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 401 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->subscriptions, sizeof(model->subscriptions)); 402 } 403 404 static void mesh_model_delete_subscriptions(mesh_model_t * model){ 405 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 406 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 407 } 408 409 void mesh_load_subscriptions(void){ 410 printf("Load Model Subscription Lists\n"); 411 // iterate over elements and models 412 mesh_element_iterator_t element_it; 413 mesh_element_iterator_init(&element_it); 414 while (mesh_element_iterator_has_next(&element_it)){ 415 mesh_element_t * element = mesh_element_iterator_next(&element_it); 416 mesh_model_iterator_t model_it; 417 mesh_model_iterator_init(&model_it, element); 418 while (mesh_model_iterator_has_next(&model_it)){ 419 mesh_model_t * model = mesh_model_iterator_next(&model_it); 420 mesh_model_load_subscriptions(model); 421 } 422 } 423 } 424 425 void mesh_delete_subscriptions(void){ 426 printf("Delete Model Subscription Lists\n"); 427 // iterate over elements and models 428 mesh_element_iterator_t element_it; 429 mesh_element_iterator_init(&element_it); 430 while (mesh_element_iterator_has_next(&element_it)){ 431 mesh_element_t * element = mesh_element_iterator_next(&element_it); 432 mesh_model_iterator_t model_it; 433 mesh_model_iterator_init(&model_it, element); 434 while (mesh_model_iterator_has_next(&model_it)){ 435 mesh_model_t * model = mesh_model_iterator_next(&model_it); 436 mesh_model_delete_subscriptions(model); 437 } 438 } 439 } 440 441 // Mesh Network Keys 442 static uint32_t mesh_network_key_tag_for_internal_index(uint16_t internal_index){ 443 return ((uint32_t) 'M' << 24) | ((uint32_t) 'N' << 16) | ((uint32_t) internal_index); 444 } 445 446 void mesh_store_network_key(mesh_network_key_t * network_key){ 447 mesh_persistent_net_key_t data; 448 printf("Store NetKey: internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 449 printf_hexdump(network_key->net_key, 16); 450 uint32_t tag = mesh_network_key_tag_for_internal_index(network_key->internal_index); 451 data.netkey_index = network_key->netkey_index; 452 memcpy(data.net_key, network_key->net_key, 16); 453 memcpy(data.identity_key, network_key->identity_key, 16); 454 memcpy(data.beacon_key, network_key->beacon_key, 16); 455 memcpy(data.network_id, network_key->network_id, 8); 456 data.nid = network_key->nid; 457 data.version = network_key->version; 458 memcpy(data.encryption_key, network_key->encryption_key, 16); 459 memcpy(data.privacy_key, network_key->privacy_key, 16); 460 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_net_key_t)); 461 } 462 463 void mesh_delete_network_key(uint16_t internal_index){ 464 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 465 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 466 } 467 468 469 void mesh_load_network_keys(void){ 470 printf("Load Network Keys\n"); 471 uint16_t internal_index; 472 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 473 mesh_persistent_net_key_t data; 474 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 475 int netkey_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 476 if (netkey_len != sizeof(mesh_persistent_net_key_t)) continue; 477 478 mesh_network_key_t * network_key = btstack_memory_mesh_network_key_get(); 479 if (network_key == NULL) return; 480 481 network_key->netkey_index = data.netkey_index; 482 memcpy(network_key->net_key, data.net_key, 16); 483 memcpy(network_key->identity_key, data.identity_key, 16); 484 memcpy(network_key->beacon_key, data.beacon_key, 16); 485 memcpy(network_key->network_id, data.network_id, 8); 486 network_key->nid = data.nid; 487 network_key->version = data.version; 488 memcpy(network_key->encryption_key, data.encryption_key, 16); 489 memcpy(network_key->privacy_key, data.privacy_key, 16); 490 491 #ifdef ENABLE_GATT_BEARER 492 // setup advertisement with network id 493 network_key->advertisement_with_network_id.adv_length = mesh_proxy_setup_advertising_with_network_id(network_key->advertisement_with_network_id.adv_data, network_key->network_id); 494 #endif 495 496 mesh_network_key_add(network_key); 497 498 mesh_subnet_setup_for_netkey_index(network_key->netkey_index); 499 500 printf("- internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 501 printf_hexdump(network_key->net_key, 16); 502 } 503 } 504 505 void mesh_delete_network_keys(void){ 506 printf("Delete Network Keys\n"); 507 508 uint16_t internal_index; 509 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 510 mesh_delete_network_key(internal_index); 511 } 512 } 513 514 // Mesh App Keys 515 516 static uint32_t mesh_transport_key_tag_for_internal_index(uint16_t internal_index){ 517 return ((uint32_t) 'M' << 24) | ((uint32_t) 'A' << 16) | ((uint32_t) internal_index); 518 } 519 520 void mesh_store_app_key(mesh_transport_key_t * app_key){ 521 mesh_persistent_app_key_t data; 522 printf("Store AppKey: internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", app_key->internal_index, app_key->appkey_index, app_key->aid); 523 printf_hexdump(app_key->key, 16); 524 uint32_t tag = mesh_transport_key_tag_for_internal_index(app_key->internal_index); 525 data.netkey_index = app_key->netkey_index; 526 data.appkey_index = app_key->appkey_index; 527 data.aid = app_key->aid; 528 data.version = app_key->version; 529 memcpy(data.key, app_key->key, 16); 530 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 531 } 532 533 void mesh_delete_app_key(uint16_t internal_index){ 534 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 535 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 536 } 537 538 void mesh_load_app_keys(void){ 539 printf("Load App Keys\n"); 540 uint16_t internal_index; 541 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 542 mesh_persistent_app_key_t data; 543 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 544 int app_key_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 545 if (app_key_len == 0) continue; 546 547 mesh_transport_key_t * key = btstack_memory_mesh_transport_key_get(); 548 if (key == NULL) return; 549 550 key->internal_index = internal_index; 551 key->appkey_index = data.appkey_index; 552 key->netkey_index = data.netkey_index; 553 key->aid = data.aid; 554 key->akf = 1; 555 key->version = data.version; 556 memcpy(key->key, data.key, 16); 557 mesh_transport_key_add(key); 558 printf("- internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", key->internal_index, key->appkey_index, key->aid); 559 printf_hexdump(key->key, 16); 560 } 561 } 562 563 void mesh_delete_app_keys(void){ 564 printf("Delete App Keys\n"); 565 566 uint16_t internal_index; 567 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 568 mesh_delete_app_key(internal_index); 569 } 570 } 571 572 573 // Model to Appkey List 574 575 static uint32_t mesh_model_tag_for_index(uint16_t internal_model_id){ 576 return ((uint32_t) 'M' << 24) | ((uint32_t) 'B' << 16) | ((uint32_t) internal_model_id); 577 } 578 579 static void mesh_load_appkey_list(mesh_model_t * model){ 580 uint32_t tag = mesh_model_tag_for_index(model->mid); 581 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 582 } 583 584 static void mesh_store_appkey_list(mesh_model_t * model){ 585 uint32_t tag = mesh_model_tag_for_index(model->mid); 586 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 587 } 588 589 static void mesh_delete_appkey_list(mesh_model_t * model){ 590 uint32_t tag = mesh_model_tag_for_index(model->mid); 591 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 592 } 593 594 void mesh_load_appkey_lists(void){ 595 printf("Load Appkey Lists\n"); 596 // iterate over elements and models 597 mesh_element_iterator_t element_it; 598 mesh_element_iterator_init(&element_it); 599 while (mesh_element_iterator_has_next(&element_it)){ 600 mesh_element_t * element = mesh_element_iterator_next(&element_it); 601 mesh_model_iterator_t model_it; 602 mesh_model_iterator_init(&model_it, element); 603 while (mesh_model_iterator_has_next(&model_it)){ 604 mesh_model_t * model = mesh_model_iterator_next(&model_it); 605 mesh_load_appkey_list(model); 606 } 607 } 608 } 609 610 void mesh_delete_appkey_lists(void){ 611 printf("Delete Appkey Lists\n"); 612 // iterate over elements and models 613 mesh_element_iterator_t element_it; 614 mesh_element_iterator_init(&element_it); 615 while (mesh_element_iterator_has_next(&element_it)){ 616 mesh_element_t * element = mesh_element_iterator_next(&element_it); 617 mesh_model_iterator_t model_it; 618 mesh_model_iterator_init(&model_it, element); 619 while (mesh_model_iterator_has_next(&model_it)){ 620 mesh_model_t * model = mesh_model_iterator_next(&model_it); 621 mesh_delete_appkey_list(model); 622 } 623 } 624 } 625 626 uint8_t mesh_model_bind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 627 uint16_t i; 628 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 629 if (mesh_model->appkey_indices[i] == appkey_index) return MESH_FOUNDATION_STATUS_SUCCESS; 630 } 631 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 632 if (mesh_model->appkey_indices[i] == MESH_APPKEY_INVALID) { 633 mesh_model->appkey_indices[i] = appkey_index; 634 mesh_store_appkey_list(mesh_model); 635 return MESH_FOUNDATION_STATUS_SUCCESS; 636 } 637 } 638 return MESH_FOUNDATION_STATUS_INSUFFICIENT_RESOURCES; 639 } 640 641 void mesh_model_unbind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 642 uint16_t i; 643 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 644 if (mesh_model->appkey_indices[i] == appkey_index) { 645 mesh_model->appkey_indices[i] = MESH_APPKEY_INVALID; 646 mesh_store_appkey_list(mesh_model); 647 } 648 } 649 } 650 651 int mesh_model_contains_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 652 uint16_t i; 653 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 654 if (mesh_model->appkey_indices[i] == appkey_index) return 1; 655 } 656 return 0; 657 } 658 659 void mesh_access_netkey_finalize(mesh_network_key_t * network_key){ 660 mesh_network_key_remove(network_key); 661 mesh_delete_network_key(network_key->internal_index); 662 btstack_memory_mesh_network_key_free(network_key); 663 } 664 665 void mesh_access_appkey_finalize(mesh_transport_key_t * transport_key){ 666 mesh_transport_key_remove(transport_key); 667 mesh_delete_app_key(transport_key->appkey_index); 668 btstack_memory_mesh_transport_key_free(transport_key); 669 } 670 671 void mesh_access_key_refresh_revoke_keys(mesh_subnet_t * subnet){ 672 // delete old netkey index 673 mesh_access_netkey_finalize(subnet->old_key); 674 subnet->old_key = subnet->new_key; 675 subnet->new_key = NULL; 676 677 // delete old appkeys, if any 678 mesh_transport_key_iterator_t it; 679 mesh_transport_key_iterator_init(&it, subnet->netkey_index); 680 while (mesh_transport_key_iterator_has_more(&it)){ 681 mesh_transport_key_t * transport_key = mesh_transport_key_iterator_get_next(&it); 682 if (transport_key->old_key == 0) continue; 683 mesh_access_appkey_finalize(transport_key); 684 } 685 } 686 687 // Mesh IV Index 688 static uint32_t mesh_tag_for_iv_index_and_seq_number(void){ 689 return ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'I' << 9) | ((uint32_t) 'S'); 690 } 691 692 void mesh_store_iv_index_after_provisioning(uint32_t iv_index){ 693 iv_index_and_sequence_number_t data; 694 uint32_t tag = mesh_tag_for_iv_index_and_seq_number(); 695 data.iv_index = iv_index; 696 data.seq_number = 0; 697 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 698 699 sequence_number_last_stored = data.seq_number; 700 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 701 } 702 703 void mesh_store_iv_index_and_sequence_number(void){ 704 iv_index_and_sequence_number_t data; 705 uint32_t tag = mesh_tag_for_iv_index_and_seq_number(); 706 data.iv_index = mesh_get_iv_index(); 707 data.seq_number = mesh_sequence_number_peek(); 708 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 709 710 sequence_number_last_stored = data.seq_number; 711 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 712 } 713 714 int mesh_load_iv_index_and_sequence_number(uint32_t * iv_index, uint32_t * sequence_number){ 715 iv_index_and_sequence_number_t data; 716 uint32_t tag = mesh_tag_for_iv_index_and_seq_number(); 717 uint32_t len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 718 if (len == sizeof(iv_index_and_sequence_number_t)){ 719 *iv_index = data.iv_index; 720 *sequence_number = data.seq_number; 721 return 1; 722 } 723 return 0; 724 } 725 726 // higher layer 727 static void mesh_persist_iv_index_and_sequence_number(void){ 728 if (mesh_sequence_number_peek() >= sequence_number_storage_trigger){ 729 mesh_store_iv_index_and_sequence_number(); 730 } 731 } 732 733 734 static void mesh_node_setup_default_models(void){ 735 // configure Config Server 736 mesh_configuration_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_CONFIGURATION_SERVER); 737 mesh_configuration_server_model.model_data = &mesh_configuration_server_model_context; 738 mesh_configuration_server_model.operations = mesh_configuration_server_get_operations(); 739 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_configuration_server_model); 740 741 // Config Health Server 742 mesh_health_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_HEALTH_SERVER); 743 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_health_server_model); 744 } 745 746 void mesh_init(void){ 747 748 // register for HCI events 749 hci_event_callback_registration.callback = &hci_packet_handler; 750 hci_add_event_handler(&hci_event_callback_registration); 751 752 // ADV Bearer also used for GATT Proxy Advertisements and PB-GATT 753 adv_bearer_init(); 754 755 #ifdef ENABLE_MESH_GATT_BEARER 756 // Setup GATT bearer 757 gatt_bearer_init(); 758 #endif 759 760 #ifdef ENABLE_MESH_ADV_BEARER 761 // Setup Unprovisioned Device Beacon 762 beacon_init(); 763 #endif 764 765 provisioning_device_init(); 766 767 // Node Configuration 768 mesh_node_init(); 769 770 // Network layer 771 mesh_network_init(); 772 773 // Transport layers (lower + upper)) 774 mesh_lower_transport_init(); 775 mesh_upper_transport_init(); 776 777 // Access layer 778 mesh_access_init(); 779 780 // Add mandatory models: Config Server and Health Server 781 mesh_node_setup_default_models(); 782 783 // register for seq number updates 784 mesh_sequence_number_set_update_callback(&mesh_persist_iv_index_and_sequence_number); 785 } 786 787 /** 788 * Register for Mesh Provisioning Device events 789 * @param packet_handler 790 */ 791 void mesh_register_provisioning_device_packet_handler(btstack_packet_handler_t packet_handler){ 792 provisioning_device_packet_handler = packet_handler; 793 provisioning_device_register_packet_handler(&mesh_provisioning_message_handler); 794 } 795