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 51 #include "mesh/adv_bearer.h" 52 #include "mesh/beacon.h" 53 #include "mesh/gatt_bearer.h" 54 #include "mesh/mesh_access.h" 55 #include "mesh/mesh_configuration_server.h" 56 #include "mesh/mesh_foundation.h" 57 #include "mesh/mesh_generic_model.h" 58 #include "mesh/mesh_generic_server.h" 59 #include "mesh/mesh_iv_index_seq_number.h" 60 #include "mesh/mesh_lower_transport.h" 61 #include "mesh/mesh_peer.h" 62 #include "mesh/mesh_proxy.h" 63 #include "mesh/mesh_upper_transport.h" 64 #include "mesh/mesh_virtual_addresses.h" 65 #include "mesh/pb_adv.h" 66 #include "mesh/pb_gatt.h" 67 #include "mesh/provisioning.h" 68 #include "mesh/provisioning_device.h" 69 70 // Persistent storage structures 71 72 typedef struct { 73 uint16_t netkey_index; 74 75 uint8_t version; 76 77 // net_key from provisioner or Config Model Client 78 uint8_t net_key[16]; 79 80 // derived data 81 82 // k1 83 uint8_t identity_key[16]; 84 uint8_t beacon_key[16]; 85 86 // k3 87 uint8_t network_id[8]; 88 89 // k2 90 uint8_t nid; 91 uint8_t encryption_key[16]; 92 uint8_t privacy_key[16]; 93 } mesh_persistent_net_key_t; 94 95 typedef struct { 96 uint16_t netkey_index; 97 uint16_t appkey_index; 98 uint8_t aid; 99 uint8_t version; 100 uint8_t key[16]; 101 } mesh_persistent_app_key_t; 102 103 typedef struct { 104 uint8_t gatt_proxy; 105 uint8_t beacon; 106 uint8_t default_ttl; 107 uint8_t network_transmit; 108 uint8_t relay; 109 uint8_t relay_retransmit; 110 uint8_t friend; 111 } mesh_persistent_foundation_t; 112 113 typedef struct { 114 uint32_t iv_index; 115 uint32_t seq_number; 116 } iv_index_and_sequence_number_t; 117 118 static btstack_packet_handler_t provisioning_device_packet_handler; 119 static btstack_packet_callback_registration_t hci_event_callback_registration; 120 static int provisioned; 121 122 // Mandatory Confiuration Server 123 static mesh_model_t mesh_configuration_server_model; 124 125 // Mandatory Health Server 126 static mesh_model_t mesh_health_server_model; 127 static mesh_configuration_server_model_context_t mesh_configuration_server_model_context; 128 129 // Random UUID on start 130 static btstack_crypto_random_t mesh_access_crypto_random; 131 static uint8_t random_device_uuid[16]; 132 133 // TLV 134 static const btstack_tlv_t * btstack_tlv_singleton_impl; 135 static void * btstack_tlv_singleton_context; 136 137 // IV Index persistence 138 static uint32_t sequence_number_last_stored; 139 static uint32_t sequence_number_storage_trigger; 140 141 142 void mesh_access_setup_from_provisioning_data(const mesh_provisioning_data_t * provisioning_data){ 143 144 // set iv_index and iv index update active 145 int iv_index_update_active = (provisioning_data->flags & 2) >> 1; 146 mesh_iv_index_recovered(iv_index_update_active, provisioning_data->iv_index); 147 148 // set unicast address 149 mesh_node_primary_element_address_set(provisioning_data->unicast_address); 150 151 // set device_key 152 mesh_transport_set_device_key(provisioning_data->device_key); 153 154 if (provisioning_data->network_key){ 155 156 // setup primary network with provisioned netkey 157 mesh_network_key_add(provisioning_data->network_key); 158 159 // setup primary network 160 mesh_subnet_setup_for_netkey_index(provisioning_data->network_key->netkey_index); 161 162 // start sending Secure Network Beacons 163 mesh_subnet_t * provisioned_subnet = mesh_subnet_get_by_netkey_index(provisioning_data->network_key->netkey_index); 164 beacon_secure_network_start(provisioned_subnet); 165 } 166 167 // Mesh Proxy 168 #ifdef ENABLE_MESH_PROXY_SERVER 169 // Setup Proxy 170 mesh_proxy_init(provisioning_data->unicast_address); 171 mesh_proxy_start_advertising_with_network_id(); 172 #endif 173 } 174 175 static void mesh_access_setup_unprovisioned_device(void * arg){ 176 // set random value 177 if (arg == NULL){ 178 mesh_node_set_device_uuid(random_device_uuid); 179 } 180 181 #ifdef ENABLE_MESH_PB_ADV 182 // PB-ADV 183 beacon_unprovisioned_device_start(mesh_node_get_device_uuid(), 0); 184 #endif 185 #ifdef ENABLE_MESH_PB_GATT 186 mesh_proxy_start_advertising_unprovisioned_device(); 187 #endif 188 } 189 190 void mesh_access_setup_without_provisiong_data(void){ 191 const uint8_t * device_uuid = mesh_node_get_device_uuid(); 192 if (device_uuid){ 193 mesh_access_setup_unprovisioned_device((void *)device_uuid); 194 } else{ 195 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_unprovisioned_device, NULL); 196 } 197 } 198 199 static void mesh_provisioning_message_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 200 mesh_provisioning_data_t provisioning_data; 201 202 switch(packet[0]){ 203 case HCI_EVENT_MESH_META: 204 switch(packet[2]){ 205 case MESH_SUBEVENT_PB_PROV_COMPLETE: 206 // get provisioning data 207 provisioning_device_data_get(&provisioning_data); 208 209 // and store in TLV 210 mesh_node_store_provisioning_data(&provisioning_data); 211 212 // setup node after provisioned 213 mesh_access_setup_from_provisioning_data(&provisioning_data); 214 215 // start advertising with node id after provisioning 216 mesh_proxy_set_advertising_with_node_id(provisioning_data.network_key->netkey_index, MESH_NODE_IDENTITY_STATE_ADVERTISING_RUNNING); 217 218 provisioned = 1; 219 break; 220 default: 221 break; 222 } 223 break; 224 default: 225 break; 226 } 227 if (provisioning_device_packet_handler == NULL) return; 228 229 // forward 230 (*provisioning_device_packet_handler)(packet_type, channel, packet, size); 231 } 232 233 static void hci_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 234 UNUSED(channel); 235 UNUSED(size); 236 237 switch (packet_type) { 238 case HCI_EVENT_PACKET: 239 switch (hci_event_packet_get_type(packet)) { 240 case BTSTACK_EVENT_STATE: 241 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 242 // get TLV instance 243 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 244 245 // startup from provisioning data stored in TLV 246 provisioned = mesh_node_startup_from_tlv(); 247 break; 248 249 case HCI_EVENT_DISCONNECTION_COMPLETE: 250 // enable PB_GATT 251 if (provisioned == 0){ 252 mesh_proxy_start_advertising_unprovisioned_device(); 253 } else { 254 #ifdef ENABLE_MESH_PROXY_SERVER 255 mesh_proxy_start_advertising_with_network_id(); 256 #endif 257 } 258 break; 259 260 case HCI_EVENT_LE_META: 261 if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break; 262 // disable PB_GATT 263 mesh_proxy_stop_advertising_unprovisioned_device(); 264 break; 265 default: 266 break; 267 } 268 break; 269 } 270 } 271 272 // Foundation state 273 static const uint32_t mesh_foundation_state_tag = ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'N' << 8) | ((uint32_t) 'D' << 8); 274 275 void mesh_foundation_state_load(void){ 276 mesh_persistent_foundation_t data; 277 278 int foundation_state_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 279 if (foundation_state_len != sizeof(data)) return; 280 281 mesh_foundation_gatt_proxy_set(data.gatt_proxy); 282 mesh_foundation_beacon_set(data.gatt_proxy); 283 mesh_foundation_default_ttl_set(data.default_ttl); 284 mesh_foundation_friend_set(data.friend); 285 mesh_foundation_network_transmit_set(data.network_transmit); 286 mesh_foundation_relay_set(data.relay); 287 mesh_foundation_relay_retransmit_set(data.relay_retransmit); 288 } 289 290 void mesh_foundation_state_store(void){ 291 mesh_persistent_foundation_t data; 292 data.gatt_proxy = mesh_foundation_gatt_proxy_get(); 293 data.gatt_proxy = mesh_foundation_beacon_get(); 294 data.default_ttl = mesh_foundation_default_ttl_get(); 295 data.friend = mesh_foundation_friend_get(); 296 data.network_transmit = mesh_foundation_network_transmit_get(); 297 data.relay = mesh_foundation_relay_get(); 298 data.relay_retransmit = mesh_foundation_relay_retransmit_get(); 299 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 300 } 301 302 // Mesh Network Keys 303 static uint32_t mesh_network_key_tag_for_internal_index(uint16_t internal_index){ 304 return ((uint32_t) 'M' << 24) | ((uint32_t) 'N' << 16) | ((uint32_t) internal_index); 305 } 306 307 void mesh_store_network_key(mesh_network_key_t * network_key){ 308 mesh_persistent_net_key_t data; 309 printf("Store NetKey: internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 310 printf_hexdump(network_key->net_key, 16); 311 uint32_t tag = mesh_network_key_tag_for_internal_index(network_key->internal_index); 312 data.netkey_index = network_key->netkey_index; 313 memcpy(data.net_key, network_key->net_key, 16); 314 memcpy(data.identity_key, network_key->identity_key, 16); 315 memcpy(data.beacon_key, network_key->beacon_key, 16); 316 memcpy(data.network_id, network_key->network_id, 8); 317 data.nid = network_key->nid; 318 data.version = network_key->version; 319 memcpy(data.encryption_key, network_key->encryption_key, 16); 320 memcpy(data.privacy_key, network_key->privacy_key, 16); 321 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_net_key_t)); 322 } 323 324 void mesh_delete_network_key(uint16_t internal_index){ 325 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 326 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 327 } 328 329 330 void mesh_load_network_keys(void){ 331 printf("Load Network Keys\n"); 332 uint16_t internal_index; 333 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 334 mesh_persistent_net_key_t data; 335 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 336 int netkey_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 337 if (netkey_len != sizeof(mesh_persistent_net_key_t)) continue; 338 339 mesh_network_key_t * network_key = btstack_memory_mesh_network_key_get(); 340 if (network_key == NULL) return; 341 342 network_key->netkey_index = data.netkey_index; 343 memcpy(network_key->net_key, data.net_key, 16); 344 memcpy(network_key->identity_key, data.identity_key, 16); 345 memcpy(network_key->beacon_key, data.beacon_key, 16); 346 memcpy(network_key->network_id, data.network_id, 8); 347 network_key->nid = data.nid; 348 network_key->version = data.version; 349 memcpy(network_key->encryption_key, data.encryption_key, 16); 350 memcpy(network_key->privacy_key, data.privacy_key, 16); 351 352 #ifdef ENABLE_GATT_BEARER 353 // setup advertisement with network id 354 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); 355 #endif 356 357 mesh_network_key_add(network_key); 358 359 mesh_subnet_setup_for_netkey_index(network_key->netkey_index); 360 361 printf("- internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 362 printf_hexdump(network_key->net_key, 16); 363 } 364 } 365 366 void mesh_delete_network_keys(void){ 367 printf("Delete Network Keys\n"); 368 369 uint16_t internal_index; 370 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 371 mesh_delete_network_key(internal_index); 372 } 373 } 374 375 // Mesh App Keys 376 377 static uint32_t mesh_transport_key_tag_for_internal_index(uint16_t internal_index){ 378 return ((uint32_t) 'M' << 24) | ((uint32_t) 'A' << 16) | ((uint32_t) internal_index); 379 } 380 381 void mesh_store_app_key(mesh_transport_key_t * app_key){ 382 mesh_persistent_app_key_t data; 383 printf("Store AppKey: internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", app_key->internal_index, app_key->appkey_index, app_key->aid); 384 printf_hexdump(app_key->key, 16); 385 uint32_t tag = mesh_transport_key_tag_for_internal_index(app_key->internal_index); 386 data.netkey_index = app_key->netkey_index; 387 data.appkey_index = app_key->appkey_index; 388 data.aid = app_key->aid; 389 data.version = app_key->version; 390 memcpy(data.key, app_key->key, 16); 391 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 392 } 393 394 void mesh_delete_app_key(uint16_t internal_index){ 395 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 396 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 397 } 398 399 void mesh_load_app_keys(void){ 400 printf("Load App Keys\n"); 401 uint16_t internal_index; 402 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 403 mesh_persistent_app_key_t data; 404 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 405 int app_key_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 406 if (app_key_len == 0) continue; 407 408 mesh_transport_key_t * key = btstack_memory_mesh_transport_key_get(); 409 if (key == NULL) return; 410 411 key->internal_index = internal_index; 412 key->appkey_index = data.appkey_index; 413 key->netkey_index = data.netkey_index; 414 key->aid = data.aid; 415 key->akf = 1; 416 key->version = data.version; 417 memcpy(key->key, data.key, 16); 418 mesh_transport_key_add(key); 419 printf("- internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", key->internal_index, key->appkey_index, key->aid); 420 printf_hexdump(key->key, 16); 421 } 422 } 423 424 void mesh_delete_app_keys(void){ 425 printf("Delete App Keys\n"); 426 427 uint16_t internal_index; 428 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 429 mesh_delete_app_key(internal_index); 430 } 431 } 432 433 434 // Model to Appkey List 435 436 static uint32_t mesh_model_tag_for_index(uint16_t internal_model_id){ 437 return ((uint32_t) 'M' << 24) | ((uint32_t) 'B' << 16) | ((uint32_t) internal_model_id); 438 } 439 440 static void mesh_load_appkey_list(mesh_model_t * model){ 441 uint32_t tag = mesh_model_tag_for_index(model->mid); 442 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 443 } 444 445 static void mesh_store_appkey_list(mesh_model_t * model){ 446 uint32_t tag = mesh_model_tag_for_index(model->mid); 447 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 448 } 449 450 static void mesh_delete_appkey_list(mesh_model_t * model){ 451 uint32_t tag = mesh_model_tag_for_index(model->mid); 452 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 453 } 454 455 void mesh_load_appkey_lists(void){ 456 printf("Load Appkey Lists\n"); 457 // iterate over elements and models 458 mesh_element_iterator_t element_it; 459 mesh_element_iterator_init(&element_it); 460 while (mesh_element_iterator_has_next(&element_it)){ 461 mesh_element_t * element = mesh_element_iterator_next(&element_it); 462 mesh_model_iterator_t model_it; 463 mesh_model_iterator_init(&model_it, element); 464 while (mesh_model_iterator_has_next(&model_it)){ 465 mesh_model_t * model = mesh_model_iterator_next(&model_it); 466 mesh_load_appkey_list(model); 467 } 468 } 469 } 470 471 void mesh_delete_appkey_lists(void){ 472 printf("Delete Appkey Lists\n"); 473 // iterate over elements and models 474 mesh_element_iterator_t element_it; 475 mesh_element_iterator_init(&element_it); 476 while (mesh_element_iterator_has_next(&element_it)){ 477 mesh_element_t * element = mesh_element_iterator_next(&element_it); 478 mesh_model_iterator_t model_it; 479 mesh_model_iterator_init(&model_it, element); 480 while (mesh_model_iterator_has_next(&model_it)){ 481 mesh_model_t * model = mesh_model_iterator_next(&model_it); 482 mesh_delete_appkey_list(model); 483 } 484 } 485 } 486 487 void mesh_model_reset_appkeys(mesh_model_t * mesh_model){ 488 uint16_t i; 489 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 490 mesh_model->appkey_indices[i] = MESH_APPKEY_INVALID; 491 } 492 } 493 494 uint8_t mesh_model_bind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 495 uint16_t i; 496 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 497 if (mesh_model->appkey_indices[i] == appkey_index) return MESH_FOUNDATION_STATUS_SUCCESS; 498 } 499 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 500 if (mesh_model->appkey_indices[i] == MESH_APPKEY_INVALID) { 501 mesh_model->appkey_indices[i] = appkey_index; 502 mesh_store_appkey_list(mesh_model); 503 return MESH_FOUNDATION_STATUS_SUCCESS; 504 } 505 } 506 return MESH_FOUNDATION_STATUS_INSUFFICIENT_RESOURCES; 507 } 508 509 void mesh_model_unbind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 510 uint16_t i; 511 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 512 if (mesh_model->appkey_indices[i] == appkey_index) { 513 mesh_model->appkey_indices[i] = MESH_APPKEY_INVALID; 514 mesh_store_appkey_list(mesh_model); 515 } 516 } 517 } 518 519 int mesh_model_contains_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 520 uint16_t i; 521 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 522 if (mesh_model->appkey_indices[i] == appkey_index) return 1; 523 } 524 return 0; 525 } 526 527 void mesh_access_netkey_finalize(mesh_network_key_t * network_key){ 528 mesh_network_key_remove(network_key); 529 mesh_delete_network_key(network_key->internal_index); 530 btstack_memory_mesh_network_key_free(network_key); 531 } 532 533 void mesh_access_appkey_finalize(mesh_transport_key_t * transport_key){ 534 mesh_transport_key_remove(transport_key); 535 mesh_delete_app_key(transport_key->appkey_index); 536 btstack_memory_mesh_transport_key_free(transport_key); 537 } 538 539 void mesh_access_key_refresh_revoke_keys(mesh_subnet_t * subnet){ 540 // delete old netkey index 541 mesh_access_netkey_finalize(subnet->old_key); 542 subnet->old_key = subnet->new_key; 543 subnet->new_key = NULL; 544 545 // delete old appkeys, if any 546 mesh_transport_key_iterator_t it; 547 mesh_transport_key_iterator_init(&it, subnet->netkey_index); 548 while (mesh_transport_key_iterator_has_more(&it)){ 549 mesh_transport_key_t * transport_key = mesh_transport_key_iterator_get_next(&it); 550 if (transport_key->old_key == 0) continue; 551 mesh_access_appkey_finalize(transport_key); 552 } 553 } 554 555 // Mesh IV Index 556 static uint32_t mesh_tag_for_iv_index_and_seq_number(void){ 557 return ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'I' << 9) | ((uint32_t) 'S'); 558 } 559 560 void mesh_store_iv_index_after_provisioning(uint32_t iv_index){ 561 iv_index_and_sequence_number_t data; 562 uint32_t tag = mesh_tag_for_iv_index_and_seq_number(); 563 data.iv_index = iv_index; 564 data.seq_number = 0; 565 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 566 567 sequence_number_last_stored = data.seq_number; 568 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 569 } 570 571 void mesh_store_iv_index_and_sequence_number(void){ 572 iv_index_and_sequence_number_t data; 573 uint32_t tag = mesh_tag_for_iv_index_and_seq_number(); 574 data.iv_index = mesh_get_iv_index(); 575 data.seq_number = mesh_sequence_number_peek(); 576 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 577 578 sequence_number_last_stored = data.seq_number; 579 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 580 } 581 582 int mesh_load_iv_index_and_sequence_number(uint32_t * iv_index, uint32_t * sequence_number){ 583 iv_index_and_sequence_number_t data; 584 uint32_t tag = mesh_tag_for_iv_index_and_seq_number(); 585 uint32_t len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 586 if (len == sizeof(iv_index_and_sequence_number_t)){ 587 *iv_index = data.iv_index; 588 *sequence_number = data.seq_number; 589 return 1; 590 } 591 return 0; 592 } 593 594 // higher layer 595 static void mesh_persist_iv_index_and_sequence_number(void){ 596 if (mesh_sequence_number_peek() >= sequence_number_storage_trigger){ 597 mesh_store_iv_index_and_sequence_number(); 598 } 599 } 600 601 602 static void mesh_node_setup_default_models(void){ 603 // configure Config Server 604 mesh_configuration_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_CONFIGURATION_SERVER); 605 mesh_configuration_server_model.model_data = &mesh_configuration_server_model_context; 606 mesh_configuration_server_model.operations = mesh_configuration_server_get_operations(); 607 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_configuration_server_model); 608 609 // Config Health Server 610 mesh_health_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_HEALTH_SERVER); 611 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_health_server_model); 612 } 613 614 void mesh_init(void){ 615 616 // register for HCI events 617 hci_event_callback_registration.callback = &hci_packet_handler; 618 hci_add_event_handler(&hci_event_callback_registration); 619 620 // ADV Bearer also used for GATT Proxy Advertisements and PB-GATT 621 adv_bearer_init(); 622 623 #ifdef ENABLE_MESH_GATT_BEARER 624 // Setup GATT bearer 625 gatt_bearer_init(); 626 #endif 627 628 #ifdef ENABLE_MESH_ADV_BEARER 629 // Setup Unprovisioned Device Beacon 630 beacon_init(); 631 #endif 632 633 provisioning_device_init(); 634 635 // Node Configuration 636 mesh_node_init(); 637 638 // Network layer 639 mesh_network_init(); 640 641 // Transport layers (lower + upper)) 642 mesh_lower_transport_init(); 643 mesh_upper_transport_init(); 644 645 // Access layer 646 mesh_access_init(); 647 648 // Add mandatory models: Config Server and Health Server 649 mesh_node_setup_default_models(); 650 651 // register for seq number updates 652 mesh_sequence_number_set_update_callback(&mesh_persist_iv_index_and_sequence_number); 653 } 654 655 /** 656 * Register for Mesh Provisioning Device events 657 * @param packet_handler 658 */ 659 void mesh_register_provisioning_device_packet_handler(btstack_packet_handler_t packet_handler){ 660 provisioning_device_packet_handler = packet_handler; 661 provisioning_device_register_packet_handler(&mesh_provisioning_message_handler); 662 } 663