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_on_off_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 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data); 72 static int mesh_node_startup_from_tlv(void); 73 74 // Persistent storage structures 75 76 typedef struct { 77 uint16_t hash; 78 uint8_t label_uuid[16]; 79 } mesh_persistent_virtual_address_t; 80 81 typedef struct { 82 uint16_t netkey_index; 83 84 uint8_t version; 85 86 // net_key from provisioner or Config Model Client 87 uint8_t net_key[16]; 88 89 // derived data 90 91 // k1 92 uint8_t identity_key[16]; 93 uint8_t beacon_key[16]; 94 95 // k3 96 uint8_t network_id[8]; 97 98 // k2 99 uint8_t nid; 100 uint8_t encryption_key[16]; 101 uint8_t privacy_key[16]; 102 } mesh_persistent_net_key_t; 103 104 typedef struct { 105 uint16_t netkey_index; 106 uint16_t appkey_index; 107 uint8_t aid; 108 uint8_t version; 109 uint8_t key[16]; 110 } mesh_persistent_app_key_t; 111 112 typedef struct { 113 uint8_t gatt_proxy; 114 uint8_t beacon; 115 uint8_t default_ttl; 116 uint8_t network_transmit; 117 uint8_t relay; 118 uint8_t relay_retransmit; 119 uint8_t friend; 120 } mesh_persistent_foundation_t; 121 122 typedef struct { 123 uint16_t publish_address; 124 uint16_t appkey_index; 125 uint8_t friendship_credential_flag; 126 uint8_t publish_period; 127 uint8_t publish_ttl; 128 uint8_t publish_retransmit; 129 } mesh_persistent_publication_t; 130 131 typedef struct { 132 uint32_t iv_index; 133 uint32_t seq_number; 134 } iv_index_and_sequence_number_t; 135 136 static btstack_packet_handler_t provisioning_device_packet_handler; 137 static btstack_packet_callback_registration_t hci_event_callback_registration; 138 static int provisioned; 139 140 // Mandatory Confiuration Server 141 static mesh_model_t mesh_configuration_server_model; 142 143 // Mandatory Health Server 144 static mesh_model_t mesh_health_server_model; 145 static mesh_configuration_server_model_context_t mesh_configuration_server_model_context; 146 147 // Random UUID on start 148 static btstack_crypto_random_t mesh_access_crypto_random; 149 static uint8_t random_device_uuid[16]; 150 151 // TLV 152 static const btstack_tlv_t * btstack_tlv_singleton_impl; 153 static void * btstack_tlv_singleton_context; 154 155 // IV Index persistence 156 static uint32_t sequence_number_last_stored; 157 static uint32_t sequence_number_storage_trigger; 158 159 // Attention Timer 160 static uint8_t attention_timer_timeout_s; 161 static btstack_timer_source_t attention_timer_timer; 162 163 static void mesh_access_setup_from_provisioning_data(const mesh_provisioning_data_t * provisioning_data){ 164 165 // set iv_index and iv index update active 166 int iv_index_update_active = (provisioning_data->flags & 2) >> 1; 167 mesh_iv_index_recovered(iv_index_update_active, provisioning_data->iv_index); 168 169 // set unicast address 170 mesh_node_primary_element_address_set(provisioning_data->unicast_address); 171 172 // set device_key 173 mesh_transport_set_device_key(provisioning_data->device_key); 174 175 if (provisioning_data->network_key){ 176 177 // setup primary network with provisioned netkey 178 mesh_network_key_add(provisioning_data->network_key); 179 180 // setup primary network 181 mesh_subnet_setup_for_netkey_index(provisioning_data->network_key->netkey_index); 182 183 // start sending Secure Network Beacons 184 mesh_subnet_t * provisioned_subnet = mesh_subnet_get_by_netkey_index(provisioning_data->network_key->netkey_index); 185 beacon_secure_network_start(provisioned_subnet); 186 } 187 188 // Mesh Proxy 189 #ifdef ENABLE_MESH_PROXY_SERVER 190 // Setup Proxy 191 mesh_proxy_init(provisioning_data->unicast_address); 192 mesh_proxy_start_advertising_with_network_id(); 193 #endif 194 } 195 196 // Attention Timer state 197 static void mesh_emit_attention_timer_event(uint8_t timer_s){ 198 if (!provisioning_device_packet_handler) return; 199 uint8_t event[4] = { HCI_EVENT_MESH_META, 4, MESH_SUBEVENT_ATTENTION_TIMER}; 200 event[3] = timer_s; 201 provisioning_device_packet_handler(HCI_EVENT_PACKET, 0, event, sizeof(event)); 202 } 203 204 static void mesh_attention_timer_handler(btstack_timer_source_t * ts){ 205 UNUSED(ts); 206 attention_timer_timeout_s--; 207 mesh_emit_attention_timer_event(attention_timer_timeout_s); 208 if (attention_timer_timeout_s == 0) return; 209 210 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 211 btstack_run_loop_add_timer(&attention_timer_timer); 212 } 213 214 void mesh_attention_timer_set(uint8_t timer_s){ 215 // stop old timer if running 216 if (attention_timer_timeout_s){ 217 btstack_run_loop_remove_timer(&attention_timer_timer); 218 } 219 220 attention_timer_timeout_s = timer_s; 221 mesh_emit_attention_timer_event(attention_timer_timeout_s); 222 223 if (attention_timer_timeout_s){ 224 btstack_run_loop_set_timer_handler(&attention_timer_timer, &mesh_attention_timer_handler); 225 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 226 btstack_run_loop_add_timer(&attention_timer_timer); 227 } 228 } 229 230 uint8_t mesh_attention_timer_get(void){ 231 return attention_timer_timeout_s; 232 } 233 234 static void mesh_provisioning_message_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 235 mesh_provisioning_data_t provisioning_data; 236 switch(packet[0]){ 237 case HCI_EVENT_MESH_META: 238 switch(packet[2]){ 239 case MESH_SUBEVENT_PB_PROV_ATTENTION_TIMER: 240 mesh_attention_timer_set(mesh_subevent_pb_prov_attention_timer_get_attention_time(packet)); 241 break; 242 case MESH_SUBEVENT_PB_PROV_COMPLETE: 243 // get provisioning data 244 provisioning_device_data_get(&provisioning_data); 245 246 // and store in TLV 247 mesh_node_store_provisioning_data(&provisioning_data); 248 249 // setup node after provisioned 250 mesh_access_setup_from_provisioning_data(&provisioning_data); 251 252 #ifdef ENABLE_MESH_PROXY_SERVER 253 // start advertising with node id after provisioning 254 mesh_proxy_set_advertising_with_node_id(provisioning_data.network_key->netkey_index, MESH_NODE_IDENTITY_STATE_ADVERTISING_RUNNING); 255 #endif 256 257 provisioned = 1; 258 break; 259 default: 260 break; 261 } 262 break; 263 default: 264 break; 265 } 266 if (provisioning_device_packet_handler == NULL) return; 267 268 // forward 269 (*provisioning_device_packet_handler)(packet_type, channel, packet, size); 270 } 271 272 static void hci_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 273 UNUSED(channel); 274 UNUSED(size); 275 276 switch (packet_type) { 277 case HCI_EVENT_PACKET: 278 switch (hci_event_packet_get_type(packet)) { 279 case BTSTACK_EVENT_STATE: 280 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 281 // get TLV instance 282 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 283 284 // startup from static provisioning data stored in TLV 285 provisioned = mesh_node_startup_from_tlv(); 286 break; 287 288 #ifdef ENABLE_MESH_PROXY_SERVER 289 case HCI_EVENT_DISCONNECTION_COMPLETE: 290 // enable PB_GATT 291 if (provisioned == 0){ 292 mesh_proxy_start_advertising_unprovisioned_device(); 293 } else { 294 mesh_proxy_start_advertising_with_network_id(); 295 } 296 break; 297 298 case HCI_EVENT_LE_META: 299 if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break; 300 // disable PB_GATT 301 mesh_proxy_stop_advertising_unprovisioned_device(); 302 break; 303 #endif 304 default: 305 break; 306 } 307 break; 308 } 309 } 310 311 // Foundation state 312 static const uint32_t mesh_foundation_state_tag = ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'N' << 8) | ((uint32_t) 'D' << 8); 313 314 void mesh_foundation_state_load(void){ 315 mesh_persistent_foundation_t data; 316 317 int foundation_state_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 318 if (foundation_state_len != sizeof(data)) return; 319 320 mesh_foundation_gatt_proxy_set(data.gatt_proxy); 321 mesh_foundation_beacon_set(data.beacon); 322 mesh_foundation_default_ttl_set(data.default_ttl); 323 mesh_foundation_friend_set(data.friend); 324 mesh_foundation_network_transmit_set(data.network_transmit); 325 mesh_foundation_relay_set(data.relay); 326 mesh_foundation_relay_retransmit_set(data.relay_retransmit); 327 } 328 329 void mesh_foundation_state_store(void){ 330 mesh_persistent_foundation_t data; 331 data.gatt_proxy = mesh_foundation_gatt_proxy_get(); 332 data.beacon = mesh_foundation_beacon_get(); 333 data.default_ttl = mesh_foundation_default_ttl_get(); 334 data.friend = mesh_foundation_friend_get(); 335 data.network_transmit = mesh_foundation_network_transmit_get(); 336 data.relay = mesh_foundation_relay_get(); 337 data.relay_retransmit = mesh_foundation_relay_retransmit_get(); 338 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 339 } 340 341 // Mesh Virtual Address Management 342 static uint32_t mesh_virtual_address_tag_for_pseudo_dst(uint16_t pseudo_dst){ 343 return ((uint32_t) 'M' << 24) | ((uint32_t) 'V' << 16) | ((uint32_t) pseudo_dst); 344 } 345 346 static void mesh_store_virtual_address(uint16_t pseudo_dest, uint16_t hash, const uint8_t * label_uuid){ 347 mesh_persistent_virtual_address_t data; 348 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 349 data.hash = hash; 350 memcpy(data.label_uuid, label_uuid, 16); 351 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 352 } 353 354 static void mesh_delete_virtual_address(uint16_t pseudo_dest){ 355 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 356 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 357 } 358 359 void mesh_load_virtual_addresses(void){ 360 uint16_t pseudo_dst; 361 for (pseudo_dst = 0x8000; pseudo_dst < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dst++){ 362 mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 363 mesh_persistent_virtual_address_t data; 364 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 365 int virtual_address_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 366 if (virtual_address_len == 0) continue; 367 368 mesh_virtual_address_t * virtual_address = btstack_memory_mesh_virtual_address_get(); 369 if (virtual_address == NULL) return; 370 371 virtual_address->pseudo_dst = pseudo_dst; 372 virtual_address->hash = data.hash; 373 memcpy(virtual_address->label_uuid, data.label_uuid, 16); 374 mesh_virtual_address_add(virtual_address); 375 } 376 } 377 378 void mesh_delete_virtual_addresses(void){ 379 uint16_t pseudo_dest; 380 for (pseudo_dest = 0x8000; pseudo_dest < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dest++){ 381 mesh_delete_virtual_address(pseudo_dest); 382 } 383 } 384 385 void mesh_virtual_address_decrease_refcount(mesh_virtual_address_t * virtual_address){ 386 if (virtual_address == NULL){ 387 log_error("virtual_address == NULL"); 388 } 389 // decrease refcount 390 virtual_address->ref_count--; 391 // Free virtual address if ref count reaches zero 392 if (virtual_address->ref_count > 0) return; 393 // delete from TLV 394 mesh_delete_virtual_address(virtual_address->pseudo_dst); 395 // remove from list 396 mesh_virtual_address_remove(virtual_address); 397 // free memory 398 btstack_memory_mesh_virtual_address_free(virtual_address); 399 } 400 401 void mesh_virtual_address_increase_refcount(mesh_virtual_address_t * virtual_address){ 402 if (virtual_address == NULL){ 403 log_error("virtual_address == NULL"); 404 } 405 virtual_address->ref_count++; 406 if (virtual_address->ref_count > 1) return; 407 // store in TLV 408 mesh_store_virtual_address(virtual_address->pseudo_dst, virtual_address->hash, virtual_address->label_uuid); 409 } 410 411 // Mesh Subscriptions 412 static uint32_t mesh_model_subscription_tag_for_index(uint16_t internal_model_id){ 413 return ((uint32_t) 'M' << 24) | ((uint32_t) 'S' << 16) | ((uint32_t) internal_model_id); 414 } 415 416 static void mesh_model_load_subscriptions(mesh_model_t * mesh_model){ 417 uint32_t tag = mesh_model_subscription_tag_for_index(mesh_model->mid); 418 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &mesh_model->subscriptions, sizeof(mesh_model->subscriptions)); 419 // update ref count 420 421 // increase ref counts for virtual subscriptions 422 uint16_t i; 423 for (i = 0; i<MAX_NR_MESH_SUBSCRIPTION_PER_MODEL ; i++){ 424 uint16_t src = mesh_model->subscriptions[i]; 425 if (mesh_network_address_virtual(src)){ 426 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 427 mesh_virtual_address_increase_refcount(virtual_address); 428 } 429 } 430 } 431 432 void mesh_model_store_subscriptions(mesh_model_t * model){ 433 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 434 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->subscriptions, sizeof(model->subscriptions)); 435 } 436 437 static void mesh_model_delete_subscriptions(mesh_model_t * model){ 438 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 439 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 440 } 441 442 void mesh_load_subscriptions(void){ 443 printf("Load Model Subscription Lists\n"); 444 // iterate over elements and models 445 mesh_element_iterator_t element_it; 446 mesh_element_iterator_init(&element_it); 447 while (mesh_element_iterator_has_next(&element_it)){ 448 mesh_element_t * element = mesh_element_iterator_next(&element_it); 449 mesh_model_iterator_t model_it; 450 mesh_model_iterator_init(&model_it, element); 451 while (mesh_model_iterator_has_next(&model_it)){ 452 mesh_model_t * model = mesh_model_iterator_next(&model_it); 453 mesh_model_load_subscriptions(model); 454 } 455 } 456 } 457 458 void mesh_delete_subscriptions(void){ 459 printf("Delete Model Subscription Lists\n"); 460 // iterate over elements and models 461 mesh_element_iterator_t element_it; 462 mesh_element_iterator_init(&element_it); 463 while (mesh_element_iterator_has_next(&element_it)){ 464 mesh_element_t * element = mesh_element_iterator_next(&element_it); 465 mesh_model_iterator_t model_it; 466 mesh_model_iterator_init(&model_it, element); 467 while (mesh_model_iterator_has_next(&model_it)){ 468 mesh_model_t * model = mesh_model_iterator_next(&model_it); 469 mesh_model_delete_subscriptions(model); 470 } 471 } 472 } 473 474 // Model Publication 475 476 static uint32_t mesh_model_publication_tag_for_index(uint16_t internal_model_id){ 477 return ((uint32_t) 'M' << 24) | ((uint32_t) 'P' << 16) | ((uint32_t) internal_model_id); 478 } 479 480 static void mesh_model_load_publication(mesh_model_t * mesh_model){ 481 mesh_publication_model_t * publication = mesh_model->publication_model; 482 if (publication == NULL) return; 483 484 mesh_persistent_publication_t data; 485 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 486 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 487 488 publication->address = data.publish_address; 489 publication->appkey_index = data.appkey_index; 490 publication->friendship_credential_flag = data.friendship_credential_flag; 491 publication->ttl = data.publish_ttl; 492 publication->period = data.publish_period; 493 publication->retransmit = data.publish_retransmit; 494 495 // increase ref counts for current virtual publicataion address 496 uint16_t src = publication->address; 497 if (mesh_network_address_virtual(src)){ 498 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 499 if (virtual_address){ 500 mesh_virtual_address_increase_refcount(virtual_address); 501 } 502 } 503 504 mesh_model_publication_start(mesh_model); 505 } 506 507 void mesh_model_store_publication(mesh_model_t * mesh_model){ 508 mesh_publication_model_t * publication = mesh_model->publication_model; 509 if (publication == NULL) return; 510 511 mesh_persistent_publication_t data; 512 data.publish_address = publication->address; 513 data.appkey_index = publication->appkey_index; 514 data.friendship_credential_flag = publication->friendship_credential_flag; 515 data.publish_ttl = publication->ttl; 516 data.publish_period = publication->period; 517 data.publish_retransmit = publication->retransmit; 518 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 519 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 520 } 521 522 static void mesh_model_delete_publication(mesh_model_t * mesh_model){ 523 if (mesh_model->publication_model == NULL) return; 524 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 525 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 526 } 527 528 void mesh_load_publications(void){ 529 printf("Load Model Publications\n"); 530 // iterate over elements and models 531 mesh_element_iterator_t element_it; 532 mesh_element_iterator_init(&element_it); 533 while (mesh_element_iterator_has_next(&element_it)){ 534 mesh_element_t * element = mesh_element_iterator_next(&element_it); 535 mesh_model_iterator_t model_it; 536 mesh_model_iterator_init(&model_it, element); 537 while (mesh_model_iterator_has_next(&model_it)){ 538 mesh_model_t * model = mesh_model_iterator_next(&model_it); 539 mesh_model_load_publication(model); 540 } 541 } 542 } 543 544 void mesh_delete_publications(void){ 545 printf("Delete Model Publications\n"); 546 // iterate over elements and models 547 mesh_element_iterator_t element_it; 548 mesh_element_iterator_init(&element_it); 549 while (mesh_element_iterator_has_next(&element_it)){ 550 mesh_element_t * element = mesh_element_iterator_next(&element_it); 551 mesh_model_iterator_t model_it; 552 mesh_model_iterator_init(&model_it, element); 553 while (mesh_model_iterator_has_next(&model_it)){ 554 mesh_model_t * model = mesh_model_iterator_next(&model_it); 555 mesh_model_delete_publication(model); 556 } 557 } 558 } 559 560 // Mesh Network Keys 561 static uint32_t mesh_network_key_tag_for_internal_index(uint16_t internal_index){ 562 return ((uint32_t) 'M' << 24) | ((uint32_t) 'N' << 16) | ((uint32_t) internal_index); 563 } 564 565 void mesh_store_network_key(mesh_network_key_t * network_key){ 566 mesh_persistent_net_key_t data; 567 printf("Store NetKey: internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 568 printf_hexdump(network_key->net_key, 16); 569 uint32_t tag = mesh_network_key_tag_for_internal_index(network_key->internal_index); 570 data.netkey_index = network_key->netkey_index; 571 memcpy(data.net_key, network_key->net_key, 16); 572 memcpy(data.identity_key, network_key->identity_key, 16); 573 memcpy(data.beacon_key, network_key->beacon_key, 16); 574 memcpy(data.network_id, network_key->network_id, 8); 575 data.nid = network_key->nid; 576 data.version = network_key->version; 577 memcpy(data.encryption_key, network_key->encryption_key, 16); 578 memcpy(data.privacy_key, network_key->privacy_key, 16); 579 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_net_key_t)); 580 } 581 582 void mesh_delete_network_key(uint16_t internal_index){ 583 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 584 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 585 } 586 587 588 void mesh_load_network_keys(void){ 589 printf("Load Network Keys\n"); 590 uint16_t internal_index; 591 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 592 mesh_persistent_net_key_t data; 593 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 594 int netkey_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 595 if (netkey_len != sizeof(mesh_persistent_net_key_t)) continue; 596 597 mesh_network_key_t * network_key = btstack_memory_mesh_network_key_get(); 598 if (network_key == NULL) return; 599 600 network_key->internal_index = internal_index; 601 network_key->netkey_index = data.netkey_index; 602 memcpy(network_key->net_key, data.net_key, 16); 603 memcpy(network_key->identity_key, data.identity_key, 16); 604 memcpy(network_key->beacon_key, data.beacon_key, 16); 605 memcpy(network_key->network_id, data.network_id, 8); 606 network_key->nid = data.nid; 607 network_key->version = data.version; 608 memcpy(network_key->encryption_key, data.encryption_key, 16); 609 memcpy(network_key->privacy_key, data.privacy_key, 16); 610 611 #ifdef ENABLE_GATT_BEARER 612 // setup advertisement with network id 613 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); 614 #endif 615 616 mesh_network_key_add(network_key); 617 618 mesh_subnet_setup_for_netkey_index(network_key->netkey_index); 619 620 printf("- internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 621 printf_hexdump(network_key->net_key, 16); 622 } 623 } 624 625 void mesh_delete_network_keys(void){ 626 printf("Delete Network Keys\n"); 627 628 uint16_t internal_index; 629 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 630 mesh_delete_network_key(internal_index); 631 } 632 } 633 634 // Mesh App Keys 635 636 static uint32_t mesh_transport_key_tag_for_internal_index(uint16_t internal_index){ 637 return ((uint32_t) 'M' << 24) | ((uint32_t) 'A' << 16) | ((uint32_t) internal_index); 638 } 639 640 void mesh_store_app_key(mesh_transport_key_t * app_key){ 641 mesh_persistent_app_key_t data; 642 printf("Store AppKey: internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", app_key->internal_index, app_key->appkey_index, app_key->aid); 643 printf_hexdump(app_key->key, 16); 644 uint32_t tag = mesh_transport_key_tag_for_internal_index(app_key->internal_index); 645 data.netkey_index = app_key->netkey_index; 646 data.appkey_index = app_key->appkey_index; 647 data.aid = app_key->aid; 648 data.version = app_key->version; 649 memcpy(data.key, app_key->key, 16); 650 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 651 } 652 653 void mesh_delete_app_key(uint16_t internal_index){ 654 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 655 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 656 } 657 658 void mesh_load_app_keys(void){ 659 printf("Load App Keys\n"); 660 uint16_t internal_index; 661 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 662 mesh_persistent_app_key_t data; 663 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 664 int app_key_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 665 if (app_key_len == 0) continue; 666 667 mesh_transport_key_t * key = btstack_memory_mesh_transport_key_get(); 668 if (key == NULL) return; 669 670 key->internal_index = internal_index; 671 key->appkey_index = data.appkey_index; 672 key->netkey_index = data.netkey_index; 673 key->aid = data.aid; 674 key->akf = 1; 675 key->version = data.version; 676 memcpy(key->key, data.key, 16); 677 mesh_transport_key_add(key); 678 printf("- internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", key->internal_index, key->appkey_index, key->aid); 679 printf_hexdump(key->key, 16); 680 } 681 } 682 683 void mesh_delete_app_keys(void){ 684 printf("Delete App Keys\n"); 685 686 uint16_t internal_index; 687 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 688 mesh_delete_app_key(internal_index); 689 } 690 } 691 692 693 // Model to Appkey List 694 695 static uint32_t mesh_model_tag_for_index(uint16_t internal_model_id){ 696 return ((uint32_t) 'M' << 24) | ((uint32_t) 'B' << 16) | ((uint32_t) internal_model_id); 697 } 698 699 static void mesh_load_appkey_list(mesh_model_t * model){ 700 uint32_t tag = mesh_model_tag_for_index(model->mid); 701 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 702 } 703 704 static void mesh_store_appkey_list(mesh_model_t * model){ 705 uint32_t tag = mesh_model_tag_for_index(model->mid); 706 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 707 } 708 709 static void mesh_delete_appkey_list(mesh_model_t * model){ 710 uint32_t tag = mesh_model_tag_for_index(model->mid); 711 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 712 } 713 714 void mesh_load_appkey_lists(void){ 715 printf("Load Appkey Lists\n"); 716 // iterate over elements and models 717 mesh_element_iterator_t element_it; 718 mesh_element_iterator_init(&element_it); 719 while (mesh_element_iterator_has_next(&element_it)){ 720 mesh_element_t * element = mesh_element_iterator_next(&element_it); 721 mesh_model_iterator_t model_it; 722 mesh_model_iterator_init(&model_it, element); 723 while (mesh_model_iterator_has_next(&model_it)){ 724 mesh_model_t * model = mesh_model_iterator_next(&model_it); 725 mesh_load_appkey_list(model); 726 } 727 } 728 } 729 730 void mesh_delete_appkey_lists(void){ 731 printf("Delete Appkey Lists\n"); 732 // iterate over elements and models 733 mesh_element_iterator_t element_it; 734 mesh_element_iterator_init(&element_it); 735 while (mesh_element_iterator_has_next(&element_it)){ 736 mesh_element_t * element = mesh_element_iterator_next(&element_it); 737 mesh_model_iterator_t model_it; 738 mesh_model_iterator_init(&model_it, element); 739 while (mesh_model_iterator_has_next(&model_it)){ 740 mesh_model_t * model = mesh_model_iterator_next(&model_it); 741 mesh_delete_appkey_list(model); 742 } 743 } 744 } 745 746 uint8_t mesh_model_bind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 747 uint16_t i; 748 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 749 if (mesh_model->appkey_indices[i] == appkey_index) return MESH_FOUNDATION_STATUS_SUCCESS; 750 } 751 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 752 if (mesh_model->appkey_indices[i] == MESH_APPKEY_INVALID) { 753 mesh_model->appkey_indices[i] = appkey_index; 754 mesh_store_appkey_list(mesh_model); 755 return MESH_FOUNDATION_STATUS_SUCCESS; 756 } 757 } 758 return MESH_FOUNDATION_STATUS_INSUFFICIENT_RESOURCES; 759 } 760 761 void mesh_model_unbind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 762 uint16_t i; 763 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 764 if (mesh_model->appkey_indices[i] == appkey_index) { 765 mesh_model->appkey_indices[i] = MESH_APPKEY_INVALID; 766 mesh_store_appkey_list(mesh_model); 767 } 768 } 769 } 770 771 int mesh_model_contains_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 772 uint16_t i; 773 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 774 if (mesh_model->appkey_indices[i] == appkey_index) return 1; 775 } 776 return 0; 777 } 778 779 void mesh_access_netkey_finalize(mesh_network_key_t * network_key){ 780 mesh_network_key_remove(network_key); 781 mesh_delete_network_key(network_key->internal_index); 782 btstack_memory_mesh_network_key_free(network_key); 783 } 784 785 void mesh_access_appkey_finalize(mesh_transport_key_t * transport_key){ 786 mesh_transport_key_remove(transport_key); 787 mesh_delete_app_key(transport_key->appkey_index); 788 btstack_memory_mesh_transport_key_free(transport_key); 789 } 790 791 void mesh_access_key_refresh_revoke_keys(mesh_subnet_t * subnet){ 792 // delete old netkey index 793 mesh_access_netkey_finalize(subnet->old_key); 794 subnet->old_key = subnet->new_key; 795 subnet->new_key = NULL; 796 797 // delete old appkeys, if any 798 mesh_transport_key_iterator_t it; 799 mesh_transport_key_iterator_init(&it, subnet->netkey_index); 800 while (mesh_transport_key_iterator_has_more(&it)){ 801 mesh_transport_key_t * transport_key = mesh_transport_key_iterator_get_next(&it); 802 if (transport_key->old_key == 0) continue; 803 mesh_access_appkey_finalize(transport_key); 804 } 805 } 806 807 // Mesh IV Index 808 static const uint32_t mesh_tag_for_iv_index_and_seq_number = ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'I' << 9) | ((uint32_t) 'S'); 809 810 static int mesh_load_iv_index_and_sequence_number(uint32_t * iv_index, uint32_t * sequence_number){ 811 iv_index_and_sequence_number_t data; 812 uint32_t len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_tag_for_iv_index_and_seq_number, (uint8_t *) &data, sizeof(data)); 813 if (len == sizeof(iv_index_and_sequence_number_t)){ 814 *iv_index = data.iv_index; 815 *sequence_number = data.seq_number; 816 return 1; 817 } 818 return 0; 819 } 820 821 static void mesh_store_iv_index_and_sequence_number(uint32_t iv_index, uint32_t sequence_number){ 822 iv_index_and_sequence_number_t data; 823 data.iv_index = iv_index; 824 data.seq_number = sequence_number; 825 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_tag_for_iv_index_and_seq_number, (uint8_t *) &data, sizeof(data)); 826 827 sequence_number_last_stored = data.seq_number; 828 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 829 } 830 831 static void mesh_persist_iv_index_and_sequence_number(void){ 832 mesh_store_iv_index_and_sequence_number(mesh_get_iv_index(), mesh_sequence_number_peek()); 833 } 834 835 836 // higher layer - only store if sequence number is higher than trigger 837 static void mesh_persist_iv_index_and_sequence_number_if_needed(void){ 838 if (mesh_sequence_number_peek() >= sequence_number_storage_trigger){ 839 mesh_persist_iv_index_and_sequence_number(); 840 } 841 } 842 843 static void mesh_access_secure_network_beacon_handler(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size){ 844 UNUSED(channel); 845 UNUSED(size); 846 847 if (packet_type != MESH_BEACON_PACKET) return; 848 849 // lookup subnet and netkey by network id 850 uint8_t * beacon_network_id = &packet[2]; 851 mesh_subnet_iterator_t it; 852 mesh_subnet_iterator_init(&it); 853 mesh_subnet_t * subnet = NULL; 854 uint8_t new_key = 0; 855 while (mesh_subnet_iterator_has_more(&it)){ 856 mesh_subnet_t * item = mesh_subnet_iterator_get_next(&it); 857 if (memcmp(item->old_key->network_id, beacon_network_id, 8) == 0 ) { 858 subnet = item; 859 } 860 if (item->new_key != NULL && memcmp(item->new_key->network_id, beacon_network_id, 8) == 0 ) { 861 subnet = item; 862 new_key = 1; 863 } 864 break; 865 } 866 if (subnet == NULL) return; 867 868 uint8_t flags = packet[1]; 869 870 // Key refresh via secure network beacons that are authenticated with new netkey 871 if (new_key){ 872 // either first or second phase (in phase 0, new key is not set) 873 int key_refresh_flag = flags & 1; 874 if (key_refresh_flag){ 875 // transition to phase 3 from either phase 1 or 2 876 switch (subnet->key_refresh){ 877 case MESH_KEY_REFRESH_FIRST_PHASE: 878 case MESH_KEY_REFRESH_SECOND_PHASE: 879 mesh_access_key_refresh_revoke_keys(subnet); 880 subnet->key_refresh = MESH_KEY_REFRESH_NOT_ACTIVE; 881 break; 882 default: 883 break; 884 } 885 } else { 886 // transition to phase 2 from either phase 1 887 switch (subnet->key_refresh){ 888 case MESH_KEY_REFRESH_FIRST_PHASE: 889 // -- update state 890 subnet->key_refresh = MESH_KEY_REFRESH_SECOND_PHASE; 891 break; 892 default: 893 break; 894 } 895 } 896 } 897 898 // IV Update 899 900 int beacon_iv_update_active = flags & 2; 901 int local_iv_update_active = mesh_iv_update_active(); 902 uint32_t beacon_iv_index = big_endian_read_32(packet, 10); 903 uint32_t local_iv_index = mesh_get_iv_index(); 904 905 int32_t iv_index_delta = (int32_t)(beacon_iv_index - local_iv_index); 906 907 // "If a node in Normal Operation receives a Secure Network beacon with an IV index less than the last known IV Index or greater than 908 // the last known IV Index + 42, the Secure Network beacon shall be ignored." 909 if (iv_index_delta < 0 || iv_index_delta > 42){ 910 return; 911 } 912 913 // "If a node in Normal Operation receives a Secure Network beacon with an IV index equal to the last known IV index+1 and 914 // the IV Update Flag set to 0, the node may update its IV without going to the IV Update in Progress state, or it may initiate 915 // an IV Index Recovery procedure (Section 3.10.6), or it may ignore the Secure Network beacon. The node makes the choice depending 916 // on the time since last IV update and the likelihood that the node has missed the Secure Network beacons with the IV update Flag set to 1."" 917 if (local_iv_update_active == 0 && beacon_iv_update_active == 0 && iv_index_delta == 1){ 918 // instant iv update 919 mesh_set_iv_index( beacon_iv_index ); 920 // store updated iv index 921 mesh_persist_iv_index_and_sequence_number(); 922 return; 923 } 924 925 // "If this node is a member of a primary subnet and receives a Secure Network beacon on a secondary subnet with an IV Index greater than 926 // the last known IV Index of the primary subnet, the Secure Network beacon shall be ignored." 927 int member_of_primary_subnet = mesh_subnet_get_by_netkey_index(0) != NULL; 928 int beacon_on_secondary_subnet = subnet->netkey_index != 0; 929 if (member_of_primary_subnet && beacon_on_secondary_subnet && iv_index_delta > 0){ 930 return; 931 } 932 933 // "If a node in Normal Operation receives a Secure Network beacon with an IV index greater than the last known IV Index + 1..." 934 // "... it may initiate an IV Index Recovery procedure, see Section 3.10.6." 935 if (local_iv_update_active == 0 && iv_index_delta > 1){ 936 // "Upon receiving and successfully authenticating a Secure Network beacon for a primary subnet... " 937 int beacon_on_primary_subnet = subnet->netkey_index == 0; 938 if (!beacon_on_primary_subnet) return; 939 // "... whose IV Index is 1 or more higher than the current known IV Index, the node shall " 940 // " set its current IV Index and its current IV Update procedure state from the values in this Secure Network beacon." 941 mesh_iv_index_recovered(beacon_iv_update_active, beacon_iv_index); 942 // store updated iv index if in normal mode 943 if (beacon_iv_update_active == 0){ 944 mesh_persist_iv_index_and_sequence_number(); 945 } 946 return; 947 } 948 949 if (local_iv_update_active == 0){ 950 if (beacon_iv_update_active){ 951 mesh_trigger_iv_update(); 952 } 953 } else { 954 if (beacon_iv_update_active == 0){ 955 // " At the point of transition, the node shall reset the sequence number to 0x000000." 956 mesh_sequence_number_set(0); 957 mesh_iv_update_completed(); 958 // store updated iv index 959 mesh_persist_iv_index_and_sequence_number(); 960 } 961 } 962 } 963 964 static const uint32_t mesh_tag_for_prov_data = ((uint32_t) 'P' << 24) | ((uint32_t) 'R' << 16) | ((uint32_t) 'O' << 8) | (uint32_t)'V'; 965 966 void mesh_node_reset(void){ 967 // PROV 968 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, mesh_tag_for_prov_data); 969 // everything else 970 mesh_delete_network_keys(); 971 mesh_delete_app_keys(); 972 mesh_delete_appkey_lists(); 973 mesh_delete_virtual_addresses(); 974 mesh_delete_subscriptions(); 975 mesh_delete_publications(); 976 } 977 978 typedef struct { 979 uint16_t unicast_address; 980 uint8_t flags; 981 uint8_t device_key[16]; 982 983 } mesh_persistent_provisioning_data_t; 984 985 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data){ 986 987 // fill persistent prov data 988 mesh_persistent_provisioning_data_t persistent_provisioning_data; 989 990 persistent_provisioning_data.unicast_address = provisioning_data->unicast_address; 991 persistent_provisioning_data.flags = provisioning_data->flags; 992 memcpy(persistent_provisioning_data.device_key, provisioning_data->device_key, 16); 993 994 // store in tlv 995 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 996 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_tag_for_prov_data, (uint8_t *) &persistent_provisioning_data, sizeof(mesh_persistent_provisioning_data_t)); 997 998 // store IV Index and sequence number 999 mesh_store_iv_index_and_sequence_number(provisioning_data->iv_index, 0); 1000 1001 // store primary network key 1002 mesh_store_network_key(provisioning_data->network_key); 1003 } 1004 1005 static void mesh_access_setup_unprovisioned_device(const uint8_t * device_uuid){ 1006 #ifdef ENABLE_MESH_PB_ADV 1007 // PB-ADV 1008 beacon_unprovisioned_device_start(device_uuid, 0); 1009 #else 1010 UNUSED(device_uuid);; 1011 #endif 1012 #ifdef ENABLE_MESH_PB_GATT 1013 mesh_proxy_start_advertising_unprovisioned_device(); 1014 #endif 1015 } 1016 1017 static void mesh_access_setup_without_provisiong_data_random(void * arg){ 1018 UNUSED(arg); 1019 // set random value 1020 mesh_node_set_device_uuid(random_device_uuid); 1021 mesh_access_setup_unprovisioned_device(random_device_uuid); 1022 } 1023 1024 static void mesh_access_setup_with_provisiong_data_random(void * arg){ 1025 UNUSED(arg); 1026 // set random value 1027 mesh_node_set_device_uuid(random_device_uuid); 1028 } 1029 1030 static int mesh_node_startup_from_tlv(void){ 1031 1032 mesh_persistent_provisioning_data_t persistent_provisioning_data; 1033 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 1034 1035 // load provisioning data 1036 uint32_t prov_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_tag_for_prov_data, (uint8_t *) &persistent_provisioning_data, sizeof(mesh_persistent_provisioning_data_t)); 1037 printf("Provisioning data available: %u\n", prov_len ? 1 : 0); 1038 int prov_data_valid = prov_len == sizeof(mesh_persistent_provisioning_data_t); 1039 if (prov_data_valid){ 1040 1041 // copy into mesh_provisioning_data 1042 mesh_provisioning_data_t provisioning_data; 1043 memcpy(provisioning_data.device_key, persistent_provisioning_data.device_key, 16); 1044 provisioning_data.unicast_address = persistent_provisioning_data.unicast_address; 1045 provisioning_data.flags = persistent_provisioning_data.flags; 1046 provisioning_data.network_key = NULL; 1047 1048 printf("Flags %x, unicast_address %04x\n", persistent_provisioning_data.flags, provisioning_data.unicast_address); 1049 1050 // load iv index and sequence number 1051 uint32_t iv_index; 1052 uint32_t sequence_number; 1053 int ok = mesh_load_iv_index_and_sequence_number(&iv_index, &sequence_number); 1054 if (ok){ 1055 mesh_sequence_number_set(sequence_number); 1056 provisioning_data.iv_index = iv_index; 1057 } 1058 1059 // load network keys 1060 mesh_load_network_keys(); 1061 // load app keys 1062 mesh_load_app_keys(); 1063 // load model to appkey bindings 1064 mesh_load_appkey_lists(); 1065 // load virtual addresses 1066 mesh_load_virtual_addresses(); 1067 // load model subscriptions 1068 mesh_load_subscriptions(); 1069 // load model publications 1070 mesh_load_publications(); 1071 // load foundation state 1072 mesh_foundation_state_load(); 1073 1074 mesh_access_setup_from_provisioning_data(&provisioning_data); 1075 1076 // bump sequence number to account for interval updates 1077 sequence_number = mesh_sequence_number_peek() + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 1078 iv_index = mesh_get_iv_index(); 1079 mesh_store_iv_index_and_sequence_number(iv_index, sequence_number); 1080 mesh_sequence_number_set(sequence_number); 1081 log_info("IV Index: %08x, Sequence Number %08x", (int) iv_index, (int) sequence_number); 1082 1083 printf("IV Index: %08x, Sequence Number %08x\n", (int) iv_index, (int) sequence_number); 1084 1085 #if defined(ENABLE_MESH_ADV_BEARER) || defined(ENABLE_MESH_PB_ADV) 1086 // start sending Secure Network Beacon 1087 mesh_subnet_t * subnet = mesh_subnet_get_by_netkey_index(0); 1088 if (subnet){ 1089 beacon_secure_network_start(subnet); 1090 } 1091 #endif 1092 // create random uuid if not already set 1093 if (mesh_node_get_device_uuid() == NULL){ 1094 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_with_provisiong_data_random, NULL); 1095 } 1096 1097 } else { 1098 1099 const uint8_t * device_uuid = mesh_node_get_device_uuid(); 1100 if (device_uuid){ 1101 mesh_access_setup_unprovisioned_device(device_uuid); 1102 } else{ 1103 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_without_provisiong_data_random, NULL); 1104 } 1105 1106 } 1107 1108 return prov_data_valid; 1109 } 1110 1111 static void mesh_control_message_handler(mesh_pdu_t * pdu){ 1112 // get opcode 1113 uint8_t opcode = mesh_pdu_control_opcode(pdu); 1114 printf("Opcode: 0x%02x\n", opcode); 1115 1116 uint8_t init_ttl; 1117 uint8_t hops = 0; 1118 uint16_t features = 0; 1119 switch(opcode){ 1120 case 0x0a: 1121 // read params 1122 init_ttl = (*mesh_pdu_data(pdu)) & 0x7fu; 1123 features = big_endian_read_16(mesh_pdu_data(pdu), 1); 1124 // calculates hops 1125 hops = init_ttl - mesh_pdu_ttl(pdu) + 1; 1126 // process heartbeat info 1127 mesh_configuration_server_process_heartbeat(&mesh_configuration_server_model, mesh_pdu_src(pdu), mesh_pdu_dst(pdu), hops, features); 1128 break; 1129 default: 1130 break; 1131 } 1132 mesh_upper_transport_message_processed_by_higher_layer(pdu); 1133 } 1134 1135 static void mesh_node_setup_default_models(void){ 1136 // configure Config Server 1137 mesh_configuration_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_CONFIGURATION_SERVER); 1138 mesh_configuration_server_model.model_data = &mesh_configuration_server_model_context; 1139 mesh_configuration_server_model.operations = mesh_configuration_server_get_operations(); 1140 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_configuration_server_model); 1141 1142 // Config Health Server 1143 mesh_health_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_HEALTH_SERVER); 1144 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_health_server_model); 1145 } 1146 1147 void mesh_init(void){ 1148 1149 // register for HCI events 1150 hci_event_callback_registration.callback = &hci_packet_handler; 1151 hci_add_event_handler(&hci_event_callback_registration); 1152 1153 // ADV Bearer also used for GATT Proxy Advertisements and PB-GATT 1154 adv_bearer_init(); 1155 1156 #ifdef ENABLE_MESH_GATT_BEARER 1157 // Setup GATT bearer 1158 gatt_bearer_init(); 1159 #endif 1160 1161 #ifdef ENABLE_MESH_ADV_BEARER 1162 // Setup Unprovisioned Device Beacon 1163 beacon_init(); 1164 #endif 1165 1166 provisioning_device_init(); 1167 provisioning_device_register_packet_handler(&mesh_provisioning_message_handler); 1168 1169 // Node Configuration 1170 mesh_node_init(); 1171 1172 // Network layer 1173 mesh_network_init(); 1174 1175 // Transport layers (lower + upper)) 1176 mesh_lower_transport_init(); 1177 mesh_upper_transport_init(); 1178 1179 // Access layer 1180 mesh_access_init(); 1181 1182 // Add mandatory models: Config Server and Health Server 1183 mesh_node_setup_default_models(); 1184 1185 // register for secure network beacons 1186 beacon_register_for_secure_network_beacons(&mesh_access_secure_network_beacon_handler); 1187 1188 // register for seq number updates 1189 mesh_sequence_number_set_update_callback(&mesh_persist_iv_index_and_sequence_number_if_needed); 1190 1191 // register for control messages 1192 mesh_upper_transport_register_control_message_handler(&mesh_control_message_handler); 1193 } 1194 1195 /** 1196 * Register for Mesh Provisioning Device events 1197 * @param packet_handler 1198 */ 1199 void mesh_register_provisioning_device_packet_handler(btstack_packet_handler_t packet_handler){ 1200 provisioning_device_packet_handler = packet_handler; 1201 } 1202