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_health_server.h" 58 #include "mesh/mesh_foundation.h" 59 #include "mesh/mesh_generic_model.h" 60 #include "mesh/mesh_generic_on_off_server.h" 61 #include "mesh/mesh_iv_index_seq_number.h" 62 #include "mesh/mesh_lower_transport.h" 63 #include "mesh/mesh_peer.h" 64 #include "mesh/mesh_proxy.h" 65 #include "mesh/mesh_upper_transport.h" 66 #include "mesh/mesh_virtual_addresses.h" 67 #include "mesh/pb_adv.h" 68 #include "mesh/pb_gatt.h" 69 #include "mesh/provisioning.h" 70 #include "mesh/provisioning_device.h" 71 72 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data); 73 static int mesh_node_startup_from_tlv(void); 74 75 // Persistent storage structures 76 77 typedef struct { 78 uint16_t hash; 79 uint8_t label_uuid[16]; 80 } mesh_persistent_virtual_address_t; 81 82 typedef struct { 83 uint16_t netkey_index; 84 85 uint8_t version; 86 87 // net_key from provisioner or Config Model Client 88 uint8_t net_key[16]; 89 90 // derived data 91 92 // k1 93 uint8_t identity_key[16]; 94 uint8_t beacon_key[16]; 95 96 // k3 97 uint8_t network_id[8]; 98 99 // k2 100 uint8_t nid; 101 uint8_t encryption_key[16]; 102 uint8_t privacy_key[16]; 103 } mesh_persistent_net_key_t; 104 105 typedef struct { 106 uint16_t netkey_index; 107 uint16_t appkey_index; 108 uint8_t aid; 109 uint8_t version; 110 uint8_t key[16]; 111 } mesh_persistent_app_key_t; 112 113 typedef struct { 114 uint8_t gatt_proxy; 115 uint8_t beacon; 116 uint8_t default_ttl; 117 uint8_t network_transmit; 118 uint8_t relay; 119 uint8_t relay_retransmit; 120 uint8_t friend; 121 } mesh_persistent_foundation_t; 122 123 typedef struct { 124 uint16_t publish_address; 125 uint16_t appkey_index; 126 uint8_t friendship_credential_flag; 127 uint8_t publish_period; 128 uint8_t publish_ttl; 129 uint8_t publish_retransmit; 130 } mesh_persistent_publication_t; 131 132 typedef struct { 133 uint32_t iv_index; 134 uint32_t seq_number; 135 } iv_index_and_sequence_number_t; 136 137 static btstack_packet_handler_t provisioning_device_packet_handler; 138 static btstack_packet_callback_registration_t hci_event_callback_registration; 139 static int provisioned; 140 141 // Mandatory Confiuration Server 142 static mesh_model_t mesh_configuration_server_model; 143 static mesh_configuration_server_model_context_t mesh_configuration_server_model_context; 144 145 // Mandatory Health Server 146 static mesh_publication_model_t mesh_health_server_publication; 147 static mesh_model_t mesh_health_server_model; 148 static mesh_health_state_t mesh_health_server_model_context; 149 150 // Random UUID on start 151 static btstack_crypto_random_t mesh_access_crypto_random; 152 static uint8_t random_device_uuid[16]; 153 154 // TLV 155 static const btstack_tlv_t * btstack_tlv_singleton_impl; 156 static void * btstack_tlv_singleton_context; 157 158 // IV Index persistence 159 static uint32_t sequence_number_last_stored; 160 static uint32_t sequence_number_storage_trigger; 161 162 // Attention Timer 163 static uint8_t attention_timer_timeout_s; 164 static btstack_timer_source_t attention_timer_timer; 165 166 // used to log all keys to packet log for log viewer 167 // mesh-appkey-0xxx: 1234567890abcdef1234567890abcdef 168 static void mesh_log_key(const char * prefix, uint16_t id, const uint8_t * key){ 169 char line[60]; 170 strcpy(line, prefix); 171 uint16_t pos = strlen(line); 172 if (id != 0xffff){ 173 line[pos++] = '-'; 174 line[pos++] = '0'; 175 line[pos++] = char_for_nibble((id >> 8) & 0x0f); 176 line[pos++] = char_for_nibble((id >> 4) & 0x0f); 177 line[pos++] = char_for_nibble( id & 0x0f); 178 } 179 line[pos++] = ':'; 180 line[pos++] = ' '; 181 uint16_t i; 182 for (i=0;i<16;i++){ 183 line[pos++] = char_for_nibble((key[i] >> 4) & 0x0f); 184 line[pos++] = char_for_nibble( key[i] & 0x0f); 185 } 186 line[pos++] = 0; 187 hci_dump_log(HCI_DUMP_LOG_LEVEL_INFO, "%s", line); 188 } 189 190 static void mesh_setup_from_provisioning_data(const mesh_provisioning_data_t * provisioning_data){ 191 192 // set iv_index and iv index update active 193 int iv_index_update_active = (provisioning_data->flags & 2) >> 1; 194 mesh_iv_index_recovered(iv_index_update_active, provisioning_data->iv_index); 195 196 // set unicast address 197 mesh_node_primary_element_address_set(provisioning_data->unicast_address); 198 199 // set device_key 200 mesh_transport_set_device_key(provisioning_data->device_key); 201 202 if (provisioning_data->network_key){ 203 204 // setup primary network with provisioned netkey 205 mesh_network_key_add(provisioning_data->network_key); 206 207 // setup primary network 208 mesh_subnet_setup_for_netkey_index(provisioning_data->network_key->netkey_index); 209 210 // start sending Secure Network Beacons 211 mesh_subnet_t * provisioned_subnet = mesh_subnet_get_by_netkey_index(provisioning_data->network_key->netkey_index); 212 beacon_secure_network_start(provisioned_subnet); 213 } 214 215 // Mesh Proxy 216 #ifdef ENABLE_MESH_PROXY_SERVER 217 // Setup Proxy 218 mesh_proxy_init(provisioning_data->unicast_address); 219 mesh_proxy_start_advertising_with_network_id(); 220 #endif 221 } 222 223 // Attention Timer state 224 static void mesh_emit_attention_timer_event(uint8_t timer_s){ 225 if (!provisioning_device_packet_handler) return; 226 uint8_t event[4] = { HCI_EVENT_MESH_META, 4, MESH_SUBEVENT_ATTENTION_TIMER}; 227 event[3] = timer_s; 228 provisioning_device_packet_handler(HCI_EVENT_PACKET, 0, event, sizeof(event)); 229 } 230 231 static void mesh_attention_timer_handler(btstack_timer_source_t * ts){ 232 UNUSED(ts); 233 attention_timer_timeout_s--; 234 mesh_emit_attention_timer_event(attention_timer_timeout_s); 235 if (attention_timer_timeout_s == 0) return; 236 237 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 238 btstack_run_loop_add_timer(&attention_timer_timer); 239 } 240 241 void mesh_attention_timer_set(uint8_t timer_s){ 242 // stop old timer if running 243 if (attention_timer_timeout_s){ 244 btstack_run_loop_remove_timer(&attention_timer_timer); 245 } 246 247 attention_timer_timeout_s = timer_s; 248 mesh_emit_attention_timer_event(attention_timer_timeout_s); 249 250 if (attention_timer_timeout_s){ 251 btstack_run_loop_set_timer_handler(&attention_timer_timer, &mesh_attention_timer_handler); 252 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 253 btstack_run_loop_add_timer(&attention_timer_timer); 254 } 255 } 256 257 uint8_t mesh_attention_timer_get(void){ 258 return attention_timer_timeout_s; 259 } 260 261 static void mesh_provisioning_message_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 262 mesh_provisioning_data_t provisioning_data; 263 switch(packet[0]){ 264 case HCI_EVENT_MESH_META: 265 switch(packet[2]){ 266 case MESH_SUBEVENT_PB_PROV_ATTENTION_TIMER: 267 mesh_attention_timer_set(mesh_subevent_pb_prov_attention_timer_get_attention_time(packet)); 268 break; 269 case MESH_SUBEVENT_PB_PROV_COMPLETE: 270 // get provisioning data 271 provisioning_device_data_get(&provisioning_data); 272 273 // and store in TLV 274 mesh_node_store_provisioning_data(&provisioning_data); 275 276 // setup node after provisioned 277 mesh_setup_from_provisioning_data(&provisioning_data); 278 279 #ifdef ENABLE_MESH_PROXY_SERVER 280 // start advertising with node id after provisioning 281 mesh_proxy_set_advertising_with_node_id(provisioning_data.network_key->netkey_index, MESH_NODE_IDENTITY_STATE_ADVERTISING_RUNNING); 282 #endif 283 284 provisioned = 1; 285 break; 286 default: 287 break; 288 } 289 break; 290 default: 291 break; 292 } 293 if (provisioning_device_packet_handler == NULL) return; 294 295 // forward 296 (*provisioning_device_packet_handler)(packet_type, channel, packet, size); 297 } 298 299 static void hci_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 300 UNUSED(channel); 301 UNUSED(size); 302 303 switch (packet_type) { 304 case HCI_EVENT_PACKET: 305 switch (hci_event_packet_get_type(packet)) { 306 case BTSTACK_EVENT_STATE: 307 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 308 // get TLV instance 309 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 310 311 // startup from static provisioning data stored in TLV 312 provisioned = mesh_node_startup_from_tlv(); 313 break; 314 315 #ifdef ENABLE_MESH_PROXY_SERVER 316 case HCI_EVENT_DISCONNECTION_COMPLETE: 317 // enable PB_GATT 318 if (provisioned == 0){ 319 mesh_proxy_start_advertising_unprovisioned_device(); 320 } else { 321 mesh_proxy_start_advertising_with_network_id(); 322 } 323 break; 324 325 case HCI_EVENT_LE_META: 326 if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break; 327 // disable PB_GATT 328 mesh_proxy_stop_advertising_unprovisioned_device(); 329 break; 330 #endif 331 default: 332 break; 333 } 334 break; 335 } 336 } 337 338 // Foundation state 339 static const uint32_t mesh_foundation_state_tag = ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'N' << 8) | ((uint32_t) 'D' << 8); 340 341 void mesh_foundation_state_load(void){ 342 mesh_persistent_foundation_t data; 343 344 int foundation_state_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 345 if (foundation_state_len != sizeof(data)) return; 346 347 mesh_foundation_gatt_proxy_set(data.gatt_proxy); 348 mesh_foundation_beacon_set(data.beacon); 349 mesh_foundation_default_ttl_set(data.default_ttl); 350 mesh_foundation_friend_set(data.friend); 351 mesh_foundation_network_transmit_set(data.network_transmit); 352 mesh_foundation_relay_set(data.relay); 353 mesh_foundation_relay_retransmit_set(data.relay_retransmit); 354 } 355 356 void mesh_foundation_state_store(void){ 357 mesh_persistent_foundation_t data; 358 data.gatt_proxy = mesh_foundation_gatt_proxy_get(); 359 data.beacon = mesh_foundation_beacon_get(); 360 data.default_ttl = mesh_foundation_default_ttl_get(); 361 data.friend = mesh_foundation_friend_get(); 362 data.network_transmit = mesh_foundation_network_transmit_get(); 363 data.relay = mesh_foundation_relay_get(); 364 data.relay_retransmit = mesh_foundation_relay_retransmit_get(); 365 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 366 } 367 368 // Mesh Virtual Address Management 369 static uint32_t mesh_virtual_address_tag_for_pseudo_dst(uint16_t pseudo_dst){ 370 return ((uint32_t) 'M' << 24) | ((uint32_t) 'V' << 16) | ((uint32_t) pseudo_dst); 371 } 372 373 static void mesh_store_virtual_address(uint16_t pseudo_dest, uint16_t hash, const uint8_t * label_uuid){ 374 mesh_persistent_virtual_address_t data; 375 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 376 data.hash = hash; 377 memcpy(data.label_uuid, label_uuid, 16); 378 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 379 } 380 381 static void mesh_delete_virtual_address(uint16_t pseudo_dest){ 382 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 383 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 384 } 385 386 void mesh_load_virtual_addresses(void){ 387 uint16_t pseudo_dst; 388 for (pseudo_dst = 0x8000; pseudo_dst < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dst++){ 389 mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 390 mesh_persistent_virtual_address_t data; 391 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 392 int virtual_address_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 393 if (virtual_address_len == 0) continue; 394 395 mesh_virtual_address_t * virtual_address = btstack_memory_mesh_virtual_address_get(); 396 if (virtual_address == NULL) return; 397 398 virtual_address->pseudo_dst = pseudo_dst; 399 virtual_address->hash = data.hash; 400 memcpy(virtual_address->label_uuid, data.label_uuid, 16); 401 mesh_virtual_address_add(virtual_address); 402 } 403 } 404 405 void mesh_delete_virtual_addresses(void){ 406 uint16_t pseudo_dest; 407 for (pseudo_dest = 0x8000; pseudo_dest < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dest++){ 408 mesh_delete_virtual_address(pseudo_dest); 409 } 410 } 411 412 void mesh_virtual_address_decrease_refcount(mesh_virtual_address_t * virtual_address){ 413 if (virtual_address == NULL){ 414 log_error("virtual_address == NULL"); 415 } 416 // decrease refcount 417 virtual_address->ref_count--; 418 // Free virtual address if ref count reaches zero 419 if (virtual_address->ref_count > 0) return; 420 // delete from TLV 421 mesh_delete_virtual_address(virtual_address->pseudo_dst); 422 // remove from list 423 mesh_virtual_address_remove(virtual_address); 424 // free memory 425 btstack_memory_mesh_virtual_address_free(virtual_address); 426 } 427 428 void mesh_virtual_address_increase_refcount(mesh_virtual_address_t * virtual_address){ 429 if (virtual_address == NULL){ 430 log_error("virtual_address == NULL"); 431 } 432 virtual_address->ref_count++; 433 if (virtual_address->ref_count > 1) return; 434 // store in TLV 435 mesh_store_virtual_address(virtual_address->pseudo_dst, virtual_address->hash, virtual_address->label_uuid); 436 } 437 438 // Mesh Subscriptions 439 static uint32_t mesh_model_subscription_tag_for_index(uint16_t internal_model_id){ 440 return ((uint32_t) 'M' << 24) | ((uint32_t) 'S' << 16) | ((uint32_t) internal_model_id); 441 } 442 443 static void mesh_model_load_subscriptions(mesh_model_t * mesh_model){ 444 uint32_t tag = mesh_model_subscription_tag_for_index(mesh_model->mid); 445 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &mesh_model->subscriptions, sizeof(mesh_model->subscriptions)); 446 // update ref count 447 448 // increase ref counts for virtual subscriptions 449 uint16_t i; 450 for (i = 0; i<MAX_NR_MESH_SUBSCRIPTION_PER_MODEL ; i++){ 451 uint16_t src = mesh_model->subscriptions[i]; 452 if (mesh_network_address_virtual(src)){ 453 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 454 mesh_virtual_address_increase_refcount(virtual_address); 455 } 456 } 457 } 458 459 void mesh_model_store_subscriptions(mesh_model_t * model){ 460 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 461 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->subscriptions, sizeof(model->subscriptions)); 462 } 463 464 static void mesh_model_delete_subscriptions(mesh_model_t * model){ 465 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 466 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 467 } 468 469 void mesh_load_subscriptions(void){ 470 printf("Load Model Subscription Lists\n"); 471 // iterate over elements and models 472 mesh_element_iterator_t element_it; 473 mesh_element_iterator_init(&element_it); 474 while (mesh_element_iterator_has_next(&element_it)){ 475 mesh_element_t * element = mesh_element_iterator_next(&element_it); 476 mesh_model_iterator_t model_it; 477 mesh_model_iterator_init(&model_it, element); 478 while (mesh_model_iterator_has_next(&model_it)){ 479 mesh_model_t * model = mesh_model_iterator_next(&model_it); 480 mesh_model_load_subscriptions(model); 481 } 482 } 483 } 484 485 void mesh_delete_subscriptions(void){ 486 printf("Delete Model Subscription Lists\n"); 487 // iterate over elements and models 488 mesh_element_iterator_t element_it; 489 mesh_element_iterator_init(&element_it); 490 while (mesh_element_iterator_has_next(&element_it)){ 491 mesh_element_t * element = mesh_element_iterator_next(&element_it); 492 mesh_model_iterator_t model_it; 493 mesh_model_iterator_init(&model_it, element); 494 while (mesh_model_iterator_has_next(&model_it)){ 495 mesh_model_t * model = mesh_model_iterator_next(&model_it); 496 mesh_model_delete_subscriptions(model); 497 } 498 } 499 } 500 501 // Model Publication 502 503 static uint32_t mesh_model_publication_tag_for_index(uint16_t internal_model_id){ 504 return ((uint32_t) 'M' << 24) | ((uint32_t) 'P' << 16) | ((uint32_t) internal_model_id); 505 } 506 507 static void mesh_model_load_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 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 513 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 514 515 publication->address = data.publish_address; 516 publication->appkey_index = data.appkey_index; 517 publication->friendship_credential_flag = data.friendship_credential_flag; 518 publication->ttl = data.publish_ttl; 519 publication->period = data.publish_period; 520 publication->retransmit = data.publish_retransmit; 521 522 // increase ref counts for current virtual publicataion address 523 uint16_t src = publication->address; 524 if (mesh_network_address_virtual(src)){ 525 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 526 if (virtual_address){ 527 mesh_virtual_address_increase_refcount(virtual_address); 528 } 529 } 530 531 mesh_model_publication_start(mesh_model); 532 } 533 534 void mesh_model_store_publication(mesh_model_t * mesh_model){ 535 mesh_publication_model_t * publication = mesh_model->publication_model; 536 if (publication == NULL) return; 537 538 mesh_persistent_publication_t data; 539 data.publish_address = publication->address; 540 data.appkey_index = publication->appkey_index; 541 data.friendship_credential_flag = publication->friendship_credential_flag; 542 data.publish_ttl = publication->ttl; 543 data.publish_period = publication->period; 544 data.publish_retransmit = publication->retransmit; 545 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 546 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 547 } 548 549 static void mesh_model_delete_publication(mesh_model_t * mesh_model){ 550 if (mesh_model->publication_model == NULL) return; 551 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 552 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 553 } 554 555 void mesh_load_publications(void){ 556 printf("Load Model Publications\n"); 557 // iterate over elements and models 558 mesh_element_iterator_t element_it; 559 mesh_element_iterator_init(&element_it); 560 while (mesh_element_iterator_has_next(&element_it)){ 561 mesh_element_t * element = mesh_element_iterator_next(&element_it); 562 mesh_model_iterator_t model_it; 563 mesh_model_iterator_init(&model_it, element); 564 while (mesh_model_iterator_has_next(&model_it)){ 565 mesh_model_t * model = mesh_model_iterator_next(&model_it); 566 mesh_model_load_publication(model); 567 } 568 } 569 } 570 571 void mesh_delete_publications(void){ 572 printf("Delete Model Publications\n"); 573 // iterate over elements and models 574 mesh_element_iterator_t element_it; 575 mesh_element_iterator_init(&element_it); 576 while (mesh_element_iterator_has_next(&element_it)){ 577 mesh_element_t * element = mesh_element_iterator_next(&element_it); 578 mesh_model_iterator_t model_it; 579 mesh_model_iterator_init(&model_it, element); 580 while (mesh_model_iterator_has_next(&model_it)){ 581 mesh_model_t * model = mesh_model_iterator_next(&model_it); 582 mesh_model_delete_publication(model); 583 } 584 } 585 } 586 587 // Mesh Network Keys 588 static uint32_t mesh_network_key_tag_for_internal_index(uint16_t internal_index){ 589 return ((uint32_t) 'M' << 24) | ((uint32_t) 'N' << 16) | ((uint32_t) internal_index); 590 } 591 592 void mesh_store_network_key(mesh_network_key_t * network_key){ 593 mesh_persistent_net_key_t data; 594 printf("Store NetKey: internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 595 printf_hexdump(network_key->net_key, 16); 596 uint32_t tag = mesh_network_key_tag_for_internal_index(network_key->internal_index); 597 data.netkey_index = network_key->netkey_index; 598 memcpy(data.net_key, network_key->net_key, 16); 599 memcpy(data.identity_key, network_key->identity_key, 16); 600 memcpy(data.beacon_key, network_key->beacon_key, 16); 601 memcpy(data.network_id, network_key->network_id, 8); 602 data.nid = network_key->nid; 603 data.version = network_key->version; 604 memcpy(data.encryption_key, network_key->encryption_key, 16); 605 memcpy(data.privacy_key, network_key->privacy_key, 16); 606 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_net_key_t)); 607 } 608 609 void mesh_delete_network_key(uint16_t internal_index){ 610 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 611 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 612 } 613 614 void mesh_load_network_keys(void){ 615 printf("Load Network Keys\n"); 616 uint16_t internal_index; 617 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 618 mesh_persistent_net_key_t data; 619 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 620 int netkey_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 621 if (netkey_len != sizeof(mesh_persistent_net_key_t)) continue; 622 623 mesh_network_key_t * network_key = btstack_memory_mesh_network_key_get(); 624 if (network_key == NULL) return; 625 626 network_key->internal_index = internal_index; 627 network_key->netkey_index = data.netkey_index; 628 memcpy(network_key->net_key, data.net_key, 16); 629 memcpy(network_key->identity_key, data.identity_key, 16); 630 memcpy(network_key->beacon_key, data.beacon_key, 16); 631 memcpy(network_key->network_id, data.network_id, 8); 632 network_key->nid = data.nid; 633 network_key->version = data.version; 634 memcpy(network_key->encryption_key, data.encryption_key, 16); 635 memcpy(network_key->privacy_key, data.privacy_key, 16); 636 637 #ifdef ENABLE_GATT_BEARER 638 // setup advertisement with network id 639 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); 640 #endif 641 642 mesh_network_key_add(network_key); 643 644 mesh_subnet_setup_for_netkey_index(network_key->netkey_index); 645 646 printf("- internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 647 printf_hexdump(network_key->net_key, 16); 648 649 // dump into packet log 650 mesh_log_key("mesh-netkey", network_key->netkey_index, network_key->net_key); 651 } 652 } 653 654 void mesh_delete_network_keys(void){ 655 printf("Delete Network Keys\n"); 656 657 uint16_t internal_index; 658 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 659 mesh_delete_network_key(internal_index); 660 } 661 } 662 663 // Mesh App Keys 664 665 static uint32_t mesh_transport_key_tag_for_internal_index(uint16_t internal_index){ 666 return ((uint32_t) 'M' << 24) | ((uint32_t) 'A' << 16) | ((uint32_t) internal_index); 667 } 668 669 void mesh_store_app_key(mesh_transport_key_t * app_key){ 670 mesh_persistent_app_key_t data; 671 printf("Store AppKey: internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", app_key->internal_index, app_key->appkey_index, app_key->aid); 672 printf_hexdump(app_key->key, 16); 673 uint32_t tag = mesh_transport_key_tag_for_internal_index(app_key->internal_index); 674 data.netkey_index = app_key->netkey_index; 675 data.appkey_index = app_key->appkey_index; 676 data.aid = app_key->aid; 677 data.version = app_key->version; 678 memcpy(data.key, app_key->key, 16); 679 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 680 } 681 682 void mesh_delete_app_key(uint16_t internal_index){ 683 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 684 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 685 } 686 687 void mesh_load_app_keys(void){ 688 printf("Load App Keys\n"); 689 uint16_t internal_index; 690 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 691 mesh_persistent_app_key_t data; 692 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 693 int app_key_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 694 if (app_key_len == 0) continue; 695 696 mesh_transport_key_t * key = btstack_memory_mesh_transport_key_get(); 697 if (key == NULL) return; 698 699 key->internal_index = internal_index; 700 key->appkey_index = data.appkey_index; 701 key->netkey_index = data.netkey_index; 702 key->aid = data.aid; 703 key->akf = 1; 704 key->version = data.version; 705 memcpy(key->key, data.key, 16); 706 mesh_transport_key_add(key); 707 printf("- internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", key->internal_index, key->appkey_index, key->aid); 708 printf_hexdump(key->key, 16); 709 710 // dump into packet log 711 mesh_log_key("mesh-appkey", key->appkey_index, key->key); 712 } 713 } 714 715 void mesh_delete_app_keys(void){ 716 printf("Delete App Keys\n"); 717 718 uint16_t internal_index; 719 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 720 mesh_delete_app_key(internal_index); 721 } 722 } 723 724 725 // Model to Appkey List 726 727 static uint32_t mesh_model_tag_for_index(uint16_t internal_model_id){ 728 return ((uint32_t) 'M' << 24) | ((uint32_t) 'B' << 16) | ((uint32_t) internal_model_id); 729 } 730 731 static void mesh_load_appkey_list(mesh_model_t * model){ 732 uint32_t tag = mesh_model_tag_for_index(model->mid); 733 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 734 } 735 736 static void mesh_store_appkey_list(mesh_model_t * model){ 737 uint32_t tag = mesh_model_tag_for_index(model->mid); 738 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 739 } 740 741 static void mesh_delete_appkey_list(mesh_model_t * model){ 742 uint32_t tag = mesh_model_tag_for_index(model->mid); 743 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 744 } 745 746 void mesh_load_appkey_lists(void){ 747 printf("Load Appkey Lists\n"); 748 // iterate over elements and models 749 mesh_element_iterator_t element_it; 750 mesh_element_iterator_init(&element_it); 751 while (mesh_element_iterator_has_next(&element_it)){ 752 mesh_element_t * element = mesh_element_iterator_next(&element_it); 753 mesh_model_iterator_t model_it; 754 mesh_model_iterator_init(&model_it, element); 755 while (mesh_model_iterator_has_next(&model_it)){ 756 mesh_model_t * model = mesh_model_iterator_next(&model_it); 757 mesh_load_appkey_list(model); 758 } 759 } 760 } 761 762 void mesh_delete_appkey_lists(void){ 763 printf("Delete Appkey Lists\n"); 764 // iterate over elements and models 765 mesh_element_iterator_t element_it; 766 mesh_element_iterator_init(&element_it); 767 while (mesh_element_iterator_has_next(&element_it)){ 768 mesh_element_t * element = mesh_element_iterator_next(&element_it); 769 mesh_model_iterator_t model_it; 770 mesh_model_iterator_init(&model_it, element); 771 while (mesh_model_iterator_has_next(&model_it)){ 772 mesh_model_t * model = mesh_model_iterator_next(&model_it); 773 mesh_delete_appkey_list(model); 774 } 775 } 776 } 777 778 uint8_t mesh_model_bind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 779 uint16_t i; 780 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 781 if (mesh_model->appkey_indices[i] == appkey_index) return MESH_FOUNDATION_STATUS_SUCCESS; 782 } 783 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 784 if (mesh_model->appkey_indices[i] == MESH_APPKEY_INVALID) { 785 mesh_model->appkey_indices[i] = appkey_index; 786 mesh_store_appkey_list(mesh_model); 787 return MESH_FOUNDATION_STATUS_SUCCESS; 788 } 789 } 790 return MESH_FOUNDATION_STATUS_INSUFFICIENT_RESOURCES; 791 } 792 793 void mesh_model_unbind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 794 uint16_t i; 795 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 796 if (mesh_model->appkey_indices[i] == appkey_index) { 797 mesh_model->appkey_indices[i] = MESH_APPKEY_INVALID; 798 mesh_store_appkey_list(mesh_model); 799 } 800 } 801 } 802 803 int mesh_model_contains_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 804 uint16_t i; 805 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 806 if (mesh_model->appkey_indices[i] == appkey_index) return 1; 807 } 808 return 0; 809 } 810 811 void mesh_access_netkey_finalize(mesh_network_key_t * network_key){ 812 mesh_network_key_remove(network_key); 813 mesh_delete_network_key(network_key->internal_index); 814 btstack_memory_mesh_network_key_free(network_key); 815 } 816 817 void mesh_access_appkey_finalize(mesh_transport_key_t * transport_key){ 818 mesh_transport_key_remove(transport_key); 819 mesh_delete_app_key(transport_key->appkey_index); 820 btstack_memory_mesh_transport_key_free(transport_key); 821 } 822 823 void mesh_access_key_refresh_revoke_keys(mesh_subnet_t * subnet){ 824 // delete old netkey index 825 mesh_access_netkey_finalize(subnet->old_key); 826 subnet->old_key = subnet->new_key; 827 subnet->new_key = NULL; 828 829 // delete old appkeys, if any 830 mesh_transport_key_iterator_t it; 831 mesh_transport_key_iterator_init(&it, subnet->netkey_index); 832 while (mesh_transport_key_iterator_has_more(&it)){ 833 mesh_transport_key_t * transport_key = mesh_transport_key_iterator_get_next(&it); 834 if (transport_key->old_key == 0) continue; 835 mesh_access_appkey_finalize(transport_key); 836 } 837 } 838 839 // Mesh IV Index 840 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'); 841 842 static int mesh_load_iv_index_and_sequence_number(uint32_t * iv_index, uint32_t * sequence_number){ 843 iv_index_and_sequence_number_t data; 844 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)); 845 if (len == sizeof(iv_index_and_sequence_number_t)){ 846 *iv_index = data.iv_index; 847 *sequence_number = data.seq_number; 848 return 1; 849 } 850 return 0; 851 } 852 853 static void mesh_store_iv_index_and_sequence_number(uint32_t iv_index, uint32_t sequence_number){ 854 iv_index_and_sequence_number_t data; 855 data.iv_index = iv_index; 856 data.seq_number = sequence_number; 857 btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_tag_for_iv_index_and_seq_number, (uint8_t *) &data, sizeof(data)); 858 859 sequence_number_last_stored = data.seq_number; 860 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 861 } 862 863 static void mesh_persist_iv_index_and_sequence_number(void){ 864 mesh_store_iv_index_and_sequence_number(mesh_get_iv_index(), mesh_sequence_number_peek()); 865 } 866 867 868 // higher layer - only store if sequence number is higher than trigger 869 static void mesh_persist_iv_index_and_sequence_number_if_needed(void){ 870 if (mesh_sequence_number_peek() >= sequence_number_storage_trigger){ 871 mesh_persist_iv_index_and_sequence_number(); 872 } 873 } 874 875 static void mesh_access_secure_network_beacon_handler(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size){ 876 UNUSED(channel); 877 UNUSED(size); 878 879 if (packet_type != MESH_BEACON_PACKET) return; 880 881 // lookup subnet and netkey by network id 882 uint8_t * beacon_network_id = &packet[2]; 883 mesh_subnet_iterator_t it; 884 mesh_subnet_iterator_init(&it); 885 mesh_subnet_t * subnet = NULL; 886 uint8_t new_key = 0; 887 while (mesh_subnet_iterator_has_more(&it)){ 888 mesh_subnet_t * item = mesh_subnet_iterator_get_next(&it); 889 if (memcmp(item->old_key->network_id, beacon_network_id, 8) == 0 ) { 890 subnet = item; 891 } 892 if (item->new_key != NULL && memcmp(item->new_key->network_id, beacon_network_id, 8) == 0 ) { 893 subnet = item; 894 new_key = 1; 895 } 896 break; 897 } 898 if (subnet == NULL) return; 899 900 uint8_t flags = packet[1]; 901 902 // Key refresh via secure network beacons that are authenticated with new netkey 903 if (new_key){ 904 // either first or second phase (in phase 0, new key is not set) 905 int key_refresh_flag = flags & 1; 906 if (key_refresh_flag){ 907 // transition to phase 3 from either phase 1 or 2 908 switch (subnet->key_refresh){ 909 case MESH_KEY_REFRESH_FIRST_PHASE: 910 case MESH_KEY_REFRESH_SECOND_PHASE: 911 mesh_access_key_refresh_revoke_keys(subnet); 912 subnet->key_refresh = MESH_KEY_REFRESH_NOT_ACTIVE; 913 break; 914 default: 915 break; 916 } 917 } else { 918 // transition to phase 2 from either phase 1 919 switch (subnet->key_refresh){ 920 case MESH_KEY_REFRESH_FIRST_PHASE: 921 // -- update state 922 subnet->key_refresh = MESH_KEY_REFRESH_SECOND_PHASE; 923 break; 924 default: 925 break; 926 } 927 } 928 } 929 930 // IV Update 931 932 int beacon_iv_update_active = flags & 2; 933 int local_iv_update_active = mesh_iv_update_active(); 934 uint32_t beacon_iv_index = big_endian_read_32(packet, 10); 935 uint32_t local_iv_index = mesh_get_iv_index(); 936 937 int32_t iv_index_delta = (int32_t)(beacon_iv_index - local_iv_index); 938 939 // "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 940 // the last known IV Index + 42, the Secure Network beacon shall be ignored." 941 if (iv_index_delta < 0 || iv_index_delta > 42){ 942 return; 943 } 944 945 // "If a node in Normal Operation receives a Secure Network beacon with an IV index equal to the last known IV index+1 and 946 // 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 947 // an IV Index Recovery procedure (Section 3.10.6), or it may ignore the Secure Network beacon. The node makes the choice depending 948 // 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."" 949 if (local_iv_update_active == 0 && beacon_iv_update_active == 0 && iv_index_delta == 1){ 950 // instant iv update 951 mesh_set_iv_index( beacon_iv_index ); 952 // store updated iv index 953 mesh_persist_iv_index_and_sequence_number(); 954 return; 955 } 956 957 // "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 958 // the last known IV Index of the primary subnet, the Secure Network beacon shall be ignored." 959 int member_of_primary_subnet = mesh_subnet_get_by_netkey_index(0) != NULL; 960 int beacon_on_secondary_subnet = subnet->netkey_index != 0; 961 if (member_of_primary_subnet && beacon_on_secondary_subnet && iv_index_delta > 0){ 962 return; 963 } 964 965 // "If a node in Normal Operation receives a Secure Network beacon with an IV index greater than the last known IV Index + 1..." 966 // "... it may initiate an IV Index Recovery procedure, see Section 3.10.6." 967 if (local_iv_update_active == 0 && iv_index_delta > 1){ 968 // "Upon receiving and successfully authenticating a Secure Network beacon for a primary subnet... " 969 int beacon_on_primary_subnet = subnet->netkey_index == 0; 970 if (!beacon_on_primary_subnet) return; 971 // "... whose IV Index is 1 or more higher than the current known IV Index, the node shall " 972 // " set its current IV Index and its current IV Update procedure state from the values in this Secure Network beacon." 973 mesh_iv_index_recovered(beacon_iv_update_active, beacon_iv_index); 974 // store updated iv index if in normal mode 975 if (beacon_iv_update_active == 0){ 976 mesh_persist_iv_index_and_sequence_number(); 977 } 978 return; 979 } 980 981 if (local_iv_update_active == 0){ 982 if (beacon_iv_update_active){ 983 mesh_trigger_iv_update(); 984 } 985 } else { 986 if (beacon_iv_update_active == 0){ 987 // " At the point of transition, the node shall reset the sequence number to 0x000000." 988 mesh_sequence_number_set(0); 989 mesh_iv_update_completed(); 990 // store updated iv index 991 mesh_persist_iv_index_and_sequence_number(); 992 } 993 } 994 } 995 996 static const uint32_t mesh_tag_for_prov_data = ((uint32_t) 'P' << 24) | ((uint32_t) 'R' << 16) | ((uint32_t) 'O' << 8) | (uint32_t)'V'; 997 998 void mesh_node_reset(void){ 999 // PROV 1000 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, mesh_tag_for_prov_data); 1001 // everything else 1002 mesh_delete_network_keys(); 1003 mesh_delete_app_keys(); 1004 mesh_delete_appkey_lists(); 1005 mesh_delete_virtual_addresses(); 1006 mesh_delete_subscriptions(); 1007 mesh_delete_publications(); 1008 } 1009 1010 typedef struct { 1011 uint16_t unicast_address; 1012 uint8_t flags; 1013 uint8_t device_key[16]; 1014 1015 } mesh_persistent_provisioning_data_t; 1016 1017 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data){ 1018 1019 // fill persistent prov data 1020 mesh_persistent_provisioning_data_t persistent_provisioning_data; 1021 1022 persistent_provisioning_data.unicast_address = provisioning_data->unicast_address; 1023 persistent_provisioning_data.flags = provisioning_data->flags; 1024 memcpy(persistent_provisioning_data.device_key, provisioning_data->device_key, 16); 1025 1026 // store in tlv 1027 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 1028 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)); 1029 1030 // store IV Index and sequence number 1031 mesh_store_iv_index_and_sequence_number(provisioning_data->iv_index, 0); 1032 1033 // store primary network key 1034 mesh_store_network_key(provisioning_data->network_key); 1035 } 1036 1037 static void mesh_access_setup_unprovisioned_device(const uint8_t * device_uuid){ 1038 #ifdef ENABLE_MESH_PB_ADV 1039 // PB-ADV 1040 beacon_unprovisioned_device_start(device_uuid, 0); 1041 #else 1042 UNUSED(device_uuid);; 1043 #endif 1044 #ifdef ENABLE_MESH_PB_GATT 1045 mesh_proxy_start_advertising_unprovisioned_device(); 1046 #endif 1047 } 1048 1049 static void mesh_access_setup_without_provisiong_data_random(void * arg){ 1050 UNUSED(arg); 1051 // set random value 1052 mesh_node_set_device_uuid(random_device_uuid); 1053 mesh_access_setup_unprovisioned_device(random_device_uuid); 1054 } 1055 1056 static void mesh_access_setup_with_provisiong_data_random(void * arg){ 1057 UNUSED(arg); 1058 // set random value 1059 mesh_node_set_device_uuid(random_device_uuid); 1060 } 1061 1062 static int mesh_node_startup_from_tlv(void){ 1063 1064 mesh_persistent_provisioning_data_t persistent_provisioning_data; 1065 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 1066 1067 // load provisioning data 1068 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)); 1069 printf("Provisioning data available: %u\n", prov_len ? 1 : 0); 1070 int prov_data_valid = prov_len == sizeof(mesh_persistent_provisioning_data_t); 1071 if (prov_data_valid){ 1072 1073 // copy into mesh_provisioning_data 1074 mesh_provisioning_data_t provisioning_data; 1075 memcpy(provisioning_data.device_key, persistent_provisioning_data.device_key, 16); 1076 provisioning_data.unicast_address = persistent_provisioning_data.unicast_address; 1077 provisioning_data.flags = persistent_provisioning_data.flags; 1078 provisioning_data.network_key = NULL; 1079 printf("Provisioning Data: Flags %x, unicast_address %04x\n", persistent_provisioning_data.flags, provisioning_data.unicast_address); 1080 1081 // try load iv index and sequence number 1082 uint32_t iv_index = 0; 1083 uint32_t sequence_number = 0; 1084 (void) mesh_load_iv_index_and_sequence_number(&iv_index, &sequence_number); 1085 1086 // bump sequence number to account for interval updates 1087 sequence_number += MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 1088 mesh_store_iv_index_and_sequence_number(iv_index, sequence_number); 1089 1090 mesh_set_iv_index(iv_index); 1091 mesh_sequence_number_set(sequence_number); 1092 provisioning_data.iv_index = iv_index; 1093 printf("IV Index: %08x, Sequence Number %08x\n", (int) iv_index, (int) sequence_number); 1094 1095 // setup iv update, node address, device key ... 1096 mesh_setup_from_provisioning_data(&provisioning_data); 1097 1098 // load network keys 1099 mesh_load_network_keys(); 1100 1101 // load app keys 1102 mesh_load_app_keys(); 1103 1104 // load foundation state 1105 mesh_foundation_state_load(); 1106 1107 // load model to appkey bindings 1108 mesh_load_appkey_lists(); 1109 1110 // load virtual addresses 1111 mesh_load_virtual_addresses(); 1112 1113 // load model subscriptions 1114 mesh_load_subscriptions(); 1115 1116 // load model publications 1117 mesh_load_publications(); 1118 1119 #if defined(ENABLE_MESH_ADV_BEARER) || defined(ENABLE_MESH_PB_ADV) 1120 // start sending Secure Network Beacon 1121 mesh_subnet_t * subnet = mesh_subnet_get_by_netkey_index(0); 1122 if (subnet){ 1123 beacon_secure_network_start(subnet); 1124 } 1125 #endif 1126 // create random uuid if not already set 1127 if (mesh_node_get_device_uuid() == NULL){ 1128 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_with_provisiong_data_random, NULL); 1129 } 1130 1131 // dump into packet log 1132 hci_dump_log(HCI_DUMP_LOG_LEVEL_INFO, "mesh-iv-index: %08x", iv_index); 1133 mesh_log_key("mesh-devkey", 0xffff, persistent_provisioning_data.device_key); 1134 1135 } else { 1136 1137 const uint8_t * device_uuid = mesh_node_get_device_uuid(); 1138 if (device_uuid){ 1139 mesh_access_setup_unprovisioned_device(device_uuid); 1140 } else{ 1141 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_without_provisiong_data_random, NULL); 1142 } 1143 1144 } 1145 1146 return prov_data_valid; 1147 } 1148 1149 static void mesh_control_message_handler(mesh_pdu_t * pdu){ 1150 // get opcode 1151 uint8_t opcode = mesh_pdu_control_opcode(pdu); 1152 printf("Opcode: 0x%02x\n", opcode); 1153 1154 uint8_t init_ttl; 1155 uint8_t hops = 0; 1156 uint16_t features = 0; 1157 switch(opcode){ 1158 case 0x0a: 1159 // read params 1160 init_ttl = (*mesh_pdu_data(pdu)) & 0x7fu; 1161 features = big_endian_read_16(mesh_pdu_data(pdu), 1); 1162 // calculates hops 1163 hops = init_ttl - mesh_pdu_ttl(pdu) + 1; 1164 // process heartbeat info 1165 mesh_configuration_server_process_heartbeat(&mesh_configuration_server_model, mesh_pdu_src(pdu), mesh_pdu_dst(pdu), hops, features); 1166 break; 1167 default: 1168 break; 1169 } 1170 mesh_upper_transport_message_processed_by_higher_layer(pdu); 1171 } 1172 1173 static void mesh_node_setup_default_models(void){ 1174 // configure Config Server 1175 mesh_configuration_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_CONFIGURATION_SERVER); 1176 mesh_configuration_server_model.model_data = &mesh_configuration_server_model_context; 1177 mesh_configuration_server_model.operations = mesh_configuration_server_get_operations(); 1178 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_configuration_server_model); 1179 1180 // Config Health Server 1181 mesh_health_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_HEALTH_SERVER); 1182 mesh_health_server_model.model_data = &mesh_health_server_model_context; 1183 mesh_health_server_model.operations = mesh_health_server_get_operations(); 1184 mesh_health_server_model.publication_model = &mesh_health_server_publication; 1185 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_health_server_model); 1186 mesh_health_server_set_publication_model(&mesh_health_server_model, &mesh_health_server_publication); 1187 } 1188 1189 void mesh_init(void){ 1190 1191 // register for HCI events 1192 hci_event_callback_registration.callback = &hci_packet_handler; 1193 hci_add_event_handler(&hci_event_callback_registration); 1194 1195 // ADV Bearer also used for GATT Proxy Advertisements and PB-GATT 1196 adv_bearer_init(); 1197 1198 #ifdef ENABLE_MESH_GATT_BEARER 1199 // Setup GATT bearer 1200 gatt_bearer_init(); 1201 #endif 1202 1203 #ifdef ENABLE_MESH_ADV_BEARER 1204 // Setup Unprovisioned Device Beacon 1205 beacon_init(); 1206 #endif 1207 1208 provisioning_device_init(); 1209 provisioning_device_register_packet_handler(&mesh_provisioning_message_handler); 1210 1211 // Node Configuration 1212 mesh_node_init(); 1213 1214 // Network layer 1215 mesh_network_init(); 1216 1217 // Transport layers (lower + upper)) 1218 mesh_lower_transport_init(); 1219 mesh_upper_transport_init(); 1220 1221 // Access layer 1222 mesh_access_init(); 1223 1224 // Add mandatory models: Config Server and Health Server 1225 mesh_node_setup_default_models(); 1226 1227 // register for secure network beacons 1228 beacon_register_for_secure_network_beacons(&mesh_access_secure_network_beacon_handler); 1229 1230 // register for seq number updates 1231 mesh_sequence_number_set_update_callback(&mesh_persist_iv_index_and_sequence_number_if_needed); 1232 1233 // register for control messages 1234 mesh_upper_transport_register_control_message_handler(&mesh_control_message_handler); 1235 } 1236 1237 /** 1238 * Register for Mesh Provisioning Device events 1239 * @param packet_handler 1240 */ 1241 void mesh_register_provisioning_device_packet_handler(btstack_packet_handler_t packet_handler){ 1242 provisioning_device_packet_handler = packet_handler; 1243 } 1244