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 #include "mesh/provisioning_provisioner.h" 72 73 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data); 74 static int mesh_node_startup_from_tlv(void); 75 76 // Persistent storage structures 77 78 typedef struct { 79 uint16_t hash; 80 uint8_t label_uuid[16]; 81 } mesh_persistent_virtual_address_t; 82 83 typedef struct { 84 uint16_t netkey_index; 85 86 uint8_t version; 87 88 // net_key from provisioner or Config Model Client 89 uint8_t net_key[16]; 90 91 // derived data 92 93 // k1 94 uint8_t identity_key[16]; 95 uint8_t beacon_key[16]; 96 97 // k3 98 uint8_t network_id[8]; 99 100 // k2 101 uint8_t nid; 102 uint8_t encryption_key[16]; 103 uint8_t privacy_key[16]; 104 } mesh_persistent_net_key_t; 105 106 typedef struct { 107 uint16_t netkey_index; 108 uint16_t appkey_index; 109 uint8_t aid; 110 uint8_t version; 111 uint8_t key[16]; 112 } mesh_persistent_app_key_t; 113 114 typedef struct { 115 uint8_t gatt_proxy; 116 uint8_t beacon; 117 uint8_t default_ttl; 118 uint8_t network_transmit; 119 uint8_t relay; 120 uint8_t relay_retransmit; 121 uint8_t friend; 122 } mesh_persistent_foundation_t; 123 124 typedef struct { 125 uint16_t publish_address; 126 uint16_t appkey_index; 127 uint8_t friendship_credential_flag; 128 uint8_t publish_period; 129 uint8_t publish_ttl; 130 uint8_t publish_retransmit; 131 } mesh_persistent_publication_t; 132 133 typedef struct { 134 uint32_t iv_index; 135 uint32_t seq_number; 136 } iv_index_and_sequence_number_t; 137 138 static btstack_packet_handler_t provisioning_device_packet_handler; 139 static btstack_packet_callback_registration_t hci_event_callback_registration; 140 static int provisioned; 141 142 // Mandatory Confiuration Server 143 static mesh_model_t mesh_configuration_server_model; 144 static mesh_configuration_server_model_context_t mesh_configuration_server_model_context; 145 146 // Mandatory Health Server 147 static mesh_publication_model_t mesh_health_server_publication; 148 static mesh_model_t mesh_health_server_model; 149 static mesh_health_state_t mesh_health_server_model_context; 150 151 // Random UUID on start 152 static btstack_crypto_random_t mesh_access_crypto_random; 153 static uint8_t random_device_uuid[16]; 154 155 // TLV 156 static const btstack_tlv_t * btstack_tlv_singleton_impl; 157 static void * btstack_tlv_singleton_context; 158 159 // IV Index persistence 160 static uint32_t sequence_number_last_stored; 161 static uint32_t sequence_number_storage_trigger; 162 163 // Attention Timer 164 static uint8_t attention_timer_timeout_s; 165 static btstack_timer_source_t attention_timer_timer; 166 167 // used to log all keys to packet log for log viewer 168 // mesh-appkey-0xxx: 1234567890abcdef1234567890abcdef 169 static void mesh_log_key(const char * prefix, uint16_t id, const uint8_t * key){ 170 char line[60]; 171 strcpy(line, prefix); 172 uint16_t pos = strlen(line); 173 if (id != 0xffff){ 174 line[pos++] = '-'; 175 line[pos++] = '0'; 176 line[pos++] = char_for_nibble((id >> 8) & 0x0f); 177 line[pos++] = char_for_nibble((id >> 4) & 0x0f); 178 line[pos++] = char_for_nibble( id & 0x0f); 179 } 180 line[pos++] = ':'; 181 line[pos++] = ' '; 182 uint16_t i; 183 for (i=0;i<16;i++){ 184 line[pos++] = char_for_nibble((key[i] >> 4) & 0x0f); 185 line[pos++] = char_for_nibble( key[i] & 0x0f); 186 } 187 line[pos++] = 0; 188 hci_dump_log(HCI_DUMP_LOG_LEVEL_INFO, "%s", line); 189 } 190 191 static void mesh_setup_from_provisioning_data(const mesh_provisioning_data_t * provisioning_data){ 192 193 // set iv_index and iv index update active 194 int iv_index_update_active = (provisioning_data->flags & 2) >> 1; 195 mesh_iv_index_recovered(iv_index_update_active, provisioning_data->iv_index); 196 197 // set unicast address 198 mesh_node_primary_element_address_set(provisioning_data->unicast_address); 199 200 // set device_key 201 mesh_transport_set_device_key(provisioning_data->device_key); 202 203 if (provisioning_data->network_key){ 204 205 // setup primary network with provisioned netkey 206 mesh_network_key_add(provisioning_data->network_key); 207 208 // setup primary network 209 mesh_subnet_setup_for_netkey_index(provisioning_data->network_key->netkey_index); 210 211 // start sending Secure Network Beacons 212 mesh_subnet_t * provisioned_subnet = mesh_subnet_get_by_netkey_index(provisioning_data->network_key->netkey_index); 213 beacon_secure_network_start(provisioned_subnet); 214 } 215 216 // Mesh Proxy 217 #ifdef ENABLE_MESH_PROXY_SERVER 218 // Setup Proxy 219 mesh_proxy_init(provisioning_data->unicast_address); 220 mesh_proxy_start_advertising_with_network_id(); 221 #endif 222 } 223 224 // Attention Timer state 225 static void mesh_emit_attention_timer_event(uint8_t timer_s){ 226 if (!provisioning_device_packet_handler) return; 227 uint8_t event[4] = { HCI_EVENT_MESH_META, 4, MESH_SUBEVENT_ATTENTION_TIMER}; 228 event[3] = timer_s; 229 provisioning_device_packet_handler(HCI_EVENT_PACKET, 0, event, sizeof(event)); 230 } 231 232 static void mesh_attention_timer_handler(btstack_timer_source_t * ts){ 233 UNUSED(ts); 234 attention_timer_timeout_s--; 235 mesh_emit_attention_timer_event(attention_timer_timeout_s); 236 if (attention_timer_timeout_s == 0) return; 237 238 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 239 btstack_run_loop_add_timer(&attention_timer_timer); 240 } 241 242 void mesh_attention_timer_set(uint8_t timer_s){ 243 // stop old timer if running 244 if (attention_timer_timeout_s){ 245 btstack_run_loop_remove_timer(&attention_timer_timer); 246 } 247 248 attention_timer_timeout_s = timer_s; 249 mesh_emit_attention_timer_event(attention_timer_timeout_s); 250 251 if (attention_timer_timeout_s){ 252 btstack_run_loop_set_timer_handler(&attention_timer_timer, &mesh_attention_timer_handler); 253 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 254 btstack_run_loop_add_timer(&attention_timer_timer); 255 } 256 } 257 258 uint8_t mesh_attention_timer_get(void){ 259 return attention_timer_timeout_s; 260 } 261 262 static void mesh_provisioning_message_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 263 mesh_provisioning_data_t provisioning_data; 264 switch(packet[0]){ 265 case HCI_EVENT_MESH_META: 266 switch(packet[2]){ 267 case MESH_SUBEVENT_PB_PROV_ATTENTION_TIMER: 268 mesh_attention_timer_set(mesh_subevent_pb_prov_attention_timer_get_attention_time(packet)); 269 break; 270 case MESH_SUBEVENT_PB_PROV_COMPLETE: 271 // get provisioning data 272 provisioning_device_data_get(&provisioning_data); 273 274 // and store in TLV 275 mesh_node_store_provisioning_data(&provisioning_data); 276 277 // setup node after provisioned 278 mesh_setup_from_provisioning_data(&provisioning_data); 279 280 #ifdef ENABLE_MESH_PROXY_SERVER 281 // start advertising with node id after provisioning 282 mesh_proxy_set_advertising_with_node_id(provisioning_data.network_key->netkey_index, MESH_NODE_IDENTITY_STATE_ADVERTISING_RUNNING); 283 #endif 284 285 provisioned = 1; 286 break; 287 default: 288 break; 289 } 290 break; 291 default: 292 break; 293 } 294 if (provisioning_device_packet_handler == NULL) return; 295 296 // forward 297 (*provisioning_device_packet_handler)(packet_type, channel, packet, size); 298 } 299 300 static void hci_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 301 UNUSED(channel); 302 UNUSED(size); 303 304 switch (packet_type) { 305 case HCI_EVENT_PACKET: 306 switch (hci_event_packet_get_type(packet)) { 307 case BTSTACK_EVENT_STATE: 308 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 309 // get TLV instance 310 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 311 312 // startup from static provisioning data stored in TLV 313 provisioned = mesh_node_startup_from_tlv(); 314 break; 315 316 #ifdef ENABLE_MESH_PROXY_SERVER 317 case HCI_EVENT_DISCONNECTION_COMPLETE: 318 // enable PB_GATT 319 if (provisioned == 0){ 320 mesh_proxy_start_advertising_unprovisioned_device(); 321 } else { 322 mesh_proxy_start_advertising_with_network_id(); 323 } 324 break; 325 326 case HCI_EVENT_LE_META: 327 if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break; 328 // disable PB_GATT 329 mesh_proxy_stop_advertising_unprovisioned_device(); 330 break; 331 #endif 332 default: 333 break; 334 } 335 break; 336 } 337 } 338 339 static void report_store_error(int result, const char * type){ 340 if (result != 0){ 341 log_error("Store %s data failed", type); 342 } 343 } 344 345 // Foundation state 346 static const uint32_t mesh_foundation_state_tag = ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'N' << 8) | ((uint32_t) 'D' << 8); 347 348 void mesh_foundation_state_load(void){ 349 mesh_persistent_foundation_t data; 350 351 int foundation_state_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 352 if (foundation_state_len != sizeof(data)) return; 353 354 mesh_foundation_gatt_proxy_set(data.gatt_proxy); 355 mesh_foundation_beacon_set(data.beacon); 356 mesh_foundation_default_ttl_set(data.default_ttl); 357 mesh_foundation_friend_set(data.friend); 358 mesh_foundation_network_transmit_set(data.network_transmit); 359 mesh_foundation_relay_set(data.relay); 360 mesh_foundation_relay_retransmit_set(data.relay_retransmit); 361 } 362 363 void mesh_foundation_state_store(void){ 364 mesh_persistent_foundation_t data; 365 data.gatt_proxy = mesh_foundation_gatt_proxy_get(); 366 data.beacon = mesh_foundation_beacon_get(); 367 data.default_ttl = mesh_foundation_default_ttl_get(); 368 data.friend = mesh_foundation_friend_get(); 369 data.network_transmit = mesh_foundation_network_transmit_get(); 370 data.relay = mesh_foundation_relay_get(); 371 data.relay_retransmit = mesh_foundation_relay_retransmit_get(); 372 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 373 report_store_error(result, "foundation"); 374 } 375 376 // Mesh Virtual Address Management 377 static uint32_t mesh_virtual_address_tag_for_pseudo_dst(uint16_t pseudo_dst){ 378 return ((uint32_t) 'M' << 24) | ((uint32_t) 'V' << 16) | ((uint32_t) pseudo_dst); 379 } 380 381 static void mesh_store_virtual_address(uint16_t pseudo_dest, uint16_t hash, const uint8_t * label_uuid){ 382 mesh_persistent_virtual_address_t data; 383 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 384 data.hash = hash; 385 (void)memcpy(data.label_uuid, label_uuid, 16); 386 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 387 report_store_error(result, "virtual address"); 388 } 389 390 static void mesh_delete_virtual_address(uint16_t pseudo_dest){ 391 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 392 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 393 } 394 395 void mesh_load_virtual_addresses(void){ 396 uint16_t pseudo_dst; 397 for (pseudo_dst = 0x8000; pseudo_dst < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dst++){ 398 mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 399 mesh_persistent_virtual_address_t data; 400 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 401 int virtual_address_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 402 if (virtual_address_len == 0) continue; 403 404 mesh_virtual_address_t * virtual_address = btstack_memory_mesh_virtual_address_get(); 405 if (virtual_address == NULL) return; 406 407 virtual_address->pseudo_dst = pseudo_dst; 408 virtual_address->hash = data.hash; 409 (void)memcpy(virtual_address->label_uuid, data.label_uuid, 16); 410 mesh_virtual_address_add(virtual_address); 411 } 412 } 413 414 void mesh_delete_virtual_addresses(void){ 415 uint16_t pseudo_dest; 416 for (pseudo_dest = 0x8000; pseudo_dest < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dest++){ 417 mesh_delete_virtual_address(pseudo_dest); 418 } 419 } 420 421 void mesh_virtual_address_decrease_refcount(mesh_virtual_address_t * virtual_address){ 422 if (virtual_address == NULL){ 423 log_error("virtual_address == NULL"); 424 } 425 // decrease refcount 426 virtual_address->ref_count--; 427 // Free virtual address if ref count reaches zero 428 if (virtual_address->ref_count > 0) return; 429 // delete from TLV 430 mesh_delete_virtual_address(virtual_address->pseudo_dst); 431 // remove from list 432 mesh_virtual_address_remove(virtual_address); 433 // free memory 434 btstack_memory_mesh_virtual_address_free(virtual_address); 435 } 436 437 void mesh_virtual_address_increase_refcount(mesh_virtual_address_t * virtual_address){ 438 if (virtual_address == NULL){ 439 log_error("virtual_address == NULL"); 440 } 441 virtual_address->ref_count++; 442 if (virtual_address->ref_count > 1) return; 443 // store in TLV 444 mesh_store_virtual_address(virtual_address->pseudo_dst, virtual_address->hash, virtual_address->label_uuid); 445 } 446 447 // Mesh Subscriptions 448 static uint32_t mesh_model_subscription_tag_for_index(uint16_t internal_model_id){ 449 return ((uint32_t) 'M' << 24) | ((uint32_t) 'S' << 16) | ((uint32_t) internal_model_id); 450 } 451 452 static void mesh_model_load_subscriptions(mesh_model_t * mesh_model){ 453 uint32_t tag = mesh_model_subscription_tag_for_index(mesh_model->mid); 454 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &mesh_model->subscriptions, sizeof(mesh_model->subscriptions)); 455 // update ref count 456 457 // increase ref counts for virtual subscriptions 458 uint16_t i; 459 for (i = 0; i<MAX_NR_MESH_SUBSCRIPTION_PER_MODEL ; i++){ 460 uint16_t src = mesh_model->subscriptions[i]; 461 if (mesh_network_address_virtual(src)){ 462 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 463 mesh_virtual_address_increase_refcount(virtual_address); 464 } 465 } 466 } 467 468 void mesh_model_store_subscriptions(mesh_model_t * model){ 469 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 470 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->subscriptions, sizeof(model->subscriptions)); 471 report_store_error(result, "subscription"); 472 } 473 474 static void mesh_model_delete_subscriptions(mesh_model_t * model){ 475 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 476 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 477 } 478 479 void mesh_load_subscriptions(void){ 480 printf("Load Model Subscription Lists\n"); 481 // iterate over elements and models 482 mesh_element_iterator_t element_it; 483 mesh_element_iterator_init(&element_it); 484 while (mesh_element_iterator_has_next(&element_it)){ 485 mesh_element_t * element = mesh_element_iterator_next(&element_it); 486 mesh_model_iterator_t model_it; 487 mesh_model_iterator_init(&model_it, element); 488 while (mesh_model_iterator_has_next(&model_it)){ 489 mesh_model_t * model = mesh_model_iterator_next(&model_it); 490 mesh_model_load_subscriptions(model); 491 } 492 } 493 } 494 495 void mesh_delete_subscriptions(void){ 496 printf("Delete Model Subscription Lists\n"); 497 // iterate over elements and models 498 mesh_element_iterator_t element_it; 499 mesh_element_iterator_init(&element_it); 500 while (mesh_element_iterator_has_next(&element_it)){ 501 mesh_element_t * element = mesh_element_iterator_next(&element_it); 502 mesh_model_iterator_t model_it; 503 mesh_model_iterator_init(&model_it, element); 504 while (mesh_model_iterator_has_next(&model_it)){ 505 mesh_model_t * model = mesh_model_iterator_next(&model_it); 506 mesh_model_delete_subscriptions(model); 507 } 508 } 509 } 510 511 // Model Publication 512 513 static uint32_t mesh_model_publication_tag_for_index(uint16_t internal_model_id){ 514 return ((uint32_t) 'M' << 24) | ((uint32_t) 'P' << 16) | ((uint32_t) internal_model_id); 515 } 516 517 static void mesh_model_load_publication(mesh_model_t * mesh_model){ 518 mesh_publication_model_t * publication = mesh_model->publication_model; 519 if (publication == NULL) return; 520 521 mesh_persistent_publication_t data; 522 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 523 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 524 525 publication->address = data.publish_address; 526 publication->appkey_index = data.appkey_index; 527 publication->friendship_credential_flag = data.friendship_credential_flag; 528 publication->ttl = data.publish_ttl; 529 publication->period = data.publish_period; 530 publication->retransmit = data.publish_retransmit; 531 532 // increase ref counts for current virtual publicataion address 533 uint16_t src = publication->address; 534 if (mesh_network_address_virtual(src)){ 535 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 536 if (virtual_address){ 537 mesh_virtual_address_increase_refcount(virtual_address); 538 } 539 } 540 541 mesh_model_publication_start(mesh_model); 542 } 543 544 void mesh_model_store_publication(mesh_model_t * mesh_model){ 545 mesh_publication_model_t * publication = mesh_model->publication_model; 546 if (publication == NULL) return; 547 548 mesh_persistent_publication_t data; 549 data.publish_address = publication->address; 550 data.appkey_index = publication->appkey_index; 551 data.friendship_credential_flag = publication->friendship_credential_flag; 552 data.publish_ttl = publication->ttl; 553 data.publish_period = publication->period; 554 data.publish_retransmit = publication->retransmit; 555 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 556 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 557 report_store_error(result, "publication"); 558 } 559 560 static void mesh_model_delete_publication(mesh_model_t * mesh_model){ 561 if (mesh_model->publication_model == NULL) return; 562 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 563 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 564 } 565 566 void mesh_load_publications(void){ 567 printf("Load Model Publications\n"); 568 // iterate over elements and models 569 mesh_element_iterator_t element_it; 570 mesh_element_iterator_init(&element_it); 571 while (mesh_element_iterator_has_next(&element_it)){ 572 mesh_element_t * element = mesh_element_iterator_next(&element_it); 573 mesh_model_iterator_t model_it; 574 mesh_model_iterator_init(&model_it, element); 575 while (mesh_model_iterator_has_next(&model_it)){ 576 mesh_model_t * model = mesh_model_iterator_next(&model_it); 577 mesh_model_load_publication(model); 578 } 579 } 580 } 581 582 void mesh_delete_publications(void){ 583 printf("Delete Model Publications\n"); 584 // iterate over elements and models 585 mesh_element_iterator_t element_it; 586 mesh_element_iterator_init(&element_it); 587 while (mesh_element_iterator_has_next(&element_it)){ 588 mesh_element_t * element = mesh_element_iterator_next(&element_it); 589 mesh_model_iterator_t model_it; 590 mesh_model_iterator_init(&model_it, element); 591 while (mesh_model_iterator_has_next(&model_it)){ 592 mesh_model_t * model = mesh_model_iterator_next(&model_it); 593 mesh_model_delete_publication(model); 594 } 595 } 596 } 597 598 // Mesh Network Keys 599 static uint32_t mesh_network_key_tag_for_internal_index(uint16_t internal_index){ 600 return ((uint32_t) 'M' << 24) | ((uint32_t) 'N' << 16) | ((uint32_t) internal_index); 601 } 602 603 void mesh_store_network_key(mesh_network_key_t * network_key){ 604 mesh_persistent_net_key_t data; 605 printf("Store NetKey: internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 606 printf_hexdump(network_key->net_key, 16); 607 uint32_t tag = mesh_network_key_tag_for_internal_index(network_key->internal_index); 608 data.netkey_index = network_key->netkey_index; 609 (void)memcpy(data.net_key, network_key->net_key, 16); 610 (void)memcpy(data.identity_key, network_key->identity_key, 16); 611 (void)memcpy(data.beacon_key, network_key->beacon_key, 16); 612 (void)memcpy(data.network_id, network_key->network_id, 8); 613 data.nid = network_key->nid; 614 data.version = network_key->version; 615 (void)memcpy(data.encryption_key, network_key->encryption_key, 16); 616 (void)memcpy(data.privacy_key, network_key->privacy_key, 16); 617 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_net_key_t)); 618 report_store_error(result, "network key"); 619 } 620 621 void mesh_delete_network_key(uint16_t internal_index){ 622 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 623 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 624 } 625 626 void mesh_load_network_keys(void){ 627 printf("Load Network Keys\n"); 628 uint16_t internal_index; 629 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 630 mesh_persistent_net_key_t data; 631 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 632 int netkey_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 633 if (netkey_len != sizeof(mesh_persistent_net_key_t)) continue; 634 635 mesh_network_key_t * network_key = btstack_memory_mesh_network_key_get(); 636 if (network_key == NULL) return; 637 638 network_key->internal_index = internal_index; 639 network_key->netkey_index = data.netkey_index; 640 (void)memcpy(network_key->net_key, data.net_key, 16); 641 (void)memcpy(network_key->identity_key, data.identity_key, 16); 642 (void)memcpy(network_key->beacon_key, data.beacon_key, 16); 643 (void)memcpy(network_key->network_id, data.network_id, 8); 644 network_key->nid = data.nid; 645 network_key->version = data.version; 646 (void)memcpy(network_key->encryption_key, data.encryption_key, 16); 647 (void)memcpy(network_key->privacy_key, data.privacy_key, 16); 648 649 #ifdef ENABLE_GATT_BEARER 650 // setup advertisement with network id 651 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); 652 #endif 653 654 mesh_network_key_add(network_key); 655 656 mesh_subnet_setup_for_netkey_index(network_key->netkey_index); 657 658 printf("- internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 659 printf_hexdump(network_key->net_key, 16); 660 661 // dump into packet log 662 mesh_log_key("mesh-netkey", network_key->netkey_index, network_key->net_key); 663 } 664 } 665 666 void mesh_delete_network_keys(void){ 667 printf("Delete Network Keys\n"); 668 669 uint16_t internal_index; 670 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 671 mesh_delete_network_key(internal_index); 672 } 673 } 674 675 // Mesh App Keys 676 677 static uint32_t mesh_transport_key_tag_for_internal_index(uint16_t internal_index){ 678 return ((uint32_t) 'M' << 24) | ((uint32_t) 'A' << 16) | ((uint32_t) internal_index); 679 } 680 681 void mesh_store_app_key(mesh_transport_key_t * app_key){ 682 mesh_persistent_app_key_t data; 683 printf("Store AppKey: internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", app_key->internal_index, app_key->appkey_index, app_key->aid); 684 printf_hexdump(app_key->key, 16); 685 uint32_t tag = mesh_transport_key_tag_for_internal_index(app_key->internal_index); 686 data.netkey_index = app_key->netkey_index; 687 data.appkey_index = app_key->appkey_index; 688 data.aid = app_key->aid; 689 data.version = app_key->version; 690 (void)memcpy(data.key, app_key->key, 16); 691 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 692 report_store_error(result, "app key"); 693 } 694 695 void mesh_delete_app_key(uint16_t internal_index){ 696 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 697 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 698 } 699 700 void mesh_load_app_keys(void){ 701 printf("Load App Keys\n"); 702 uint16_t internal_index; 703 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 704 mesh_persistent_app_key_t data; 705 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 706 int app_key_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 707 if (app_key_len == 0) continue; 708 709 mesh_transport_key_t * key = btstack_memory_mesh_transport_key_get(); 710 if (key == NULL) return; 711 712 key->internal_index = internal_index; 713 key->appkey_index = data.appkey_index; 714 key->netkey_index = data.netkey_index; 715 key->aid = data.aid; 716 key->akf = 1; 717 key->version = data.version; 718 (void)memcpy(key->key, data.key, 16); 719 mesh_transport_key_add(key); 720 printf("- internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", key->internal_index, key->appkey_index, key->aid); 721 printf_hexdump(key->key, 16); 722 723 // dump into packet log 724 mesh_log_key("mesh-appkey", key->appkey_index, key->key); 725 } 726 } 727 728 void mesh_delete_app_keys(void){ 729 printf("Delete App Keys\n"); 730 731 uint16_t internal_index; 732 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 733 mesh_delete_app_key(internal_index); 734 } 735 } 736 737 738 // Model to Appkey List 739 740 static uint32_t mesh_model_tag_for_index(uint16_t internal_model_id){ 741 return ((uint32_t) 'M' << 24) | ((uint32_t) 'B' << 16) | ((uint32_t) internal_model_id); 742 } 743 744 static void mesh_load_appkey_list(mesh_model_t * model){ 745 uint32_t tag = mesh_model_tag_for_index(model->mid); 746 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 747 } 748 749 static void mesh_store_appkey_list(mesh_model_t * model){ 750 uint32_t tag = mesh_model_tag_for_index(model->mid); 751 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 752 report_store_error(result, "appkey list"); 753 } 754 755 static void mesh_delete_appkey_list(mesh_model_t * model){ 756 uint32_t tag = mesh_model_tag_for_index(model->mid); 757 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 758 } 759 760 void mesh_load_appkey_lists(void){ 761 printf("Load Appkey Lists\n"); 762 // iterate over elements and models 763 mesh_element_iterator_t element_it; 764 mesh_element_iterator_init(&element_it); 765 while (mesh_element_iterator_has_next(&element_it)){ 766 mesh_element_t * element = mesh_element_iterator_next(&element_it); 767 mesh_model_iterator_t model_it; 768 mesh_model_iterator_init(&model_it, element); 769 while (mesh_model_iterator_has_next(&model_it)){ 770 mesh_model_t * model = mesh_model_iterator_next(&model_it); 771 mesh_load_appkey_list(model); 772 } 773 } 774 } 775 776 void mesh_delete_appkey_lists(void){ 777 printf("Delete Appkey Lists\n"); 778 // iterate over elements and models 779 mesh_element_iterator_t element_it; 780 mesh_element_iterator_init(&element_it); 781 while (mesh_element_iterator_has_next(&element_it)){ 782 mesh_element_t * element = mesh_element_iterator_next(&element_it); 783 mesh_model_iterator_t model_it; 784 mesh_model_iterator_init(&model_it, element); 785 while (mesh_model_iterator_has_next(&model_it)){ 786 mesh_model_t * model = mesh_model_iterator_next(&model_it); 787 mesh_delete_appkey_list(model); 788 } 789 } 790 } 791 792 uint8_t mesh_model_bind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 793 uint16_t i; 794 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 795 if (mesh_model->appkey_indices[i] == appkey_index) return MESH_FOUNDATION_STATUS_SUCCESS; 796 } 797 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 798 if (mesh_model->appkey_indices[i] == MESH_APPKEY_INVALID) { 799 mesh_model->appkey_indices[i] = appkey_index; 800 mesh_store_appkey_list(mesh_model); 801 return MESH_FOUNDATION_STATUS_SUCCESS; 802 } 803 } 804 return MESH_FOUNDATION_STATUS_INSUFFICIENT_RESOURCES; 805 } 806 807 void mesh_model_unbind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 808 uint16_t i; 809 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 810 if (mesh_model->appkey_indices[i] == appkey_index) { 811 mesh_model->appkey_indices[i] = MESH_APPKEY_INVALID; 812 mesh_store_appkey_list(mesh_model); 813 } 814 } 815 } 816 817 int mesh_model_contains_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 818 uint16_t i; 819 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 820 if (mesh_model->appkey_indices[i] == appkey_index) return 1; 821 } 822 return 0; 823 } 824 825 void mesh_access_netkey_finalize(mesh_network_key_t * network_key){ 826 mesh_network_key_remove(network_key); 827 mesh_delete_network_key(network_key->internal_index); 828 btstack_memory_mesh_network_key_free(network_key); 829 } 830 831 void mesh_access_appkey_finalize(mesh_transport_key_t * transport_key){ 832 mesh_transport_key_remove(transport_key); 833 mesh_delete_app_key(transport_key->appkey_index); 834 btstack_memory_mesh_transport_key_free(transport_key); 835 } 836 837 void mesh_access_key_refresh_revoke_keys(mesh_subnet_t * subnet){ 838 // delete old netkey index 839 mesh_access_netkey_finalize(subnet->old_key); 840 subnet->old_key = subnet->new_key; 841 subnet->new_key = NULL; 842 843 // delete old appkeys, if any 844 mesh_transport_key_iterator_t it; 845 mesh_transport_key_iterator_init(&it, subnet->netkey_index); 846 while (mesh_transport_key_iterator_has_more(&it)){ 847 mesh_transport_key_t * transport_key = mesh_transport_key_iterator_get_next(&it); 848 if (transport_key->old_key == 0) continue; 849 mesh_access_appkey_finalize(transport_key); 850 } 851 } 852 853 // Mesh IV Index 854 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'); 855 856 static int mesh_load_iv_index_and_sequence_number(uint32_t * iv_index, uint32_t * sequence_number){ 857 iv_index_and_sequence_number_t data; 858 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)); 859 if (len == sizeof(iv_index_and_sequence_number_t)){ 860 *iv_index = data.iv_index; 861 *sequence_number = data.seq_number; 862 return 1; 863 } 864 return 0; 865 } 866 867 static void mesh_store_iv_index_and_sequence_number(uint32_t iv_index, uint32_t sequence_number){ 868 iv_index_and_sequence_number_t data; 869 data.iv_index = iv_index; 870 data.seq_number = sequence_number; 871 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_tag_for_iv_index_and_seq_number, (uint8_t *) &data, sizeof(data)); 872 report_store_error(result, "index and sequence number"); 873 874 sequence_number_last_stored = data.seq_number; 875 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 876 } 877 878 static void mesh_persist_iv_index_and_sequence_number(void){ 879 mesh_store_iv_index_and_sequence_number(mesh_get_iv_index(), mesh_sequence_number_peek()); 880 } 881 882 883 // higher layer - only store if sequence number is higher than trigger 884 static void mesh_persist_iv_index_and_sequence_number_if_needed(void){ 885 if (mesh_sequence_number_peek() >= sequence_number_storage_trigger){ 886 mesh_persist_iv_index_and_sequence_number(); 887 } 888 } 889 890 static void mesh_access_secure_network_beacon_handler(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size){ 891 UNUSED(channel); 892 UNUSED(size); 893 894 if (packet_type != MESH_BEACON_PACKET) return; 895 896 // lookup subnet and netkey by network id 897 uint8_t * beacon_network_id = &packet[2]; 898 mesh_subnet_iterator_t it; 899 mesh_subnet_iterator_init(&it); 900 mesh_subnet_t * subnet = NULL; 901 uint8_t new_key = 0; 902 while (mesh_subnet_iterator_has_more(&it)){ 903 mesh_subnet_t * item = mesh_subnet_iterator_get_next(&it); 904 if (memcmp(item->old_key->network_id, beacon_network_id, 8) == 0 ) { 905 subnet = item; 906 } 907 if (item->new_key != NULL && memcmp(item->new_key->network_id, beacon_network_id, 8) == 0 ) { 908 subnet = item; 909 new_key = 1; 910 } 911 break; 912 } 913 if (subnet == NULL) return; 914 915 uint8_t flags = packet[1]; 916 917 // Key refresh via secure network beacons that are authenticated with new netkey 918 if (new_key){ 919 // either first or second phase (in phase 0, new key is not set) 920 int key_refresh_flag = flags & 1; 921 if (key_refresh_flag){ 922 // transition to phase 3 from either phase 1 or 2 923 switch (subnet->key_refresh){ 924 case MESH_KEY_REFRESH_FIRST_PHASE: 925 case MESH_KEY_REFRESH_SECOND_PHASE: 926 mesh_access_key_refresh_revoke_keys(subnet); 927 subnet->key_refresh = MESH_KEY_REFRESH_NOT_ACTIVE; 928 break; 929 default: 930 break; 931 } 932 } else { 933 // transition to phase 2 from either phase 1 934 switch (subnet->key_refresh){ 935 case MESH_KEY_REFRESH_FIRST_PHASE: 936 // -- update state 937 subnet->key_refresh = MESH_KEY_REFRESH_SECOND_PHASE; 938 break; 939 default: 940 break; 941 } 942 } 943 } 944 945 // IV Update 946 947 int beacon_iv_update_active = flags & 2; 948 int local_iv_update_active = mesh_iv_update_active(); 949 uint32_t beacon_iv_index = big_endian_read_32(packet, 10); 950 uint32_t local_iv_index = mesh_get_iv_index(); 951 952 int32_t iv_index_delta = (int32_t)(beacon_iv_index - local_iv_index); 953 954 // "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 955 // the last known IV Index + 42, the Secure Network beacon shall be ignored." 956 if (iv_index_delta < 0 || iv_index_delta > 42){ 957 return; 958 } 959 960 // "If a node in Normal Operation receives a Secure Network beacon with an IV index equal to the last known IV index+1 and 961 // 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 962 // an IV Index Recovery procedure (Section 3.10.6), or it may ignore the Secure Network beacon. The node makes the choice depending 963 // 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."" 964 if (local_iv_update_active == 0 && beacon_iv_update_active == 0 && iv_index_delta == 1){ 965 // instant iv update 966 mesh_set_iv_index( beacon_iv_index ); 967 // store updated iv index 968 mesh_persist_iv_index_and_sequence_number(); 969 return; 970 } 971 972 // "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 973 // the last known IV Index of the primary subnet, the Secure Network beacon shall be ignored." 974 int member_of_primary_subnet = mesh_subnet_get_by_netkey_index(0) != NULL; 975 int beacon_on_secondary_subnet = subnet->netkey_index != 0; 976 if (member_of_primary_subnet && beacon_on_secondary_subnet && iv_index_delta > 0){ 977 return; 978 } 979 980 // "If a node in Normal Operation receives a Secure Network beacon with an IV index greater than the last known IV Index + 1..." 981 // "... it may initiate an IV Index Recovery procedure, see Section 3.10.6." 982 if (local_iv_update_active == 0 && iv_index_delta > 1){ 983 // "Upon receiving and successfully authenticating a Secure Network beacon for a primary subnet... " 984 int beacon_on_primary_subnet = subnet->netkey_index == 0; 985 if (!beacon_on_primary_subnet) return; 986 // "... whose IV Index is 1 or more higher than the current known IV Index, the node shall " 987 // " set its current IV Index and its current IV Update procedure state from the values in this Secure Network beacon." 988 mesh_iv_index_recovered(beacon_iv_update_active, beacon_iv_index); 989 // store updated iv index if in normal mode 990 if (beacon_iv_update_active == 0){ 991 mesh_persist_iv_index_and_sequence_number(); 992 } 993 return; 994 } 995 996 if (local_iv_update_active == 0){ 997 if (beacon_iv_update_active){ 998 mesh_trigger_iv_update(); 999 } 1000 } else { 1001 if (beacon_iv_update_active == 0){ 1002 // " At the point of transition, the node shall reset the sequence number to 0x000000." 1003 mesh_sequence_number_set(0); 1004 mesh_iv_update_completed(); 1005 // store updated iv index 1006 mesh_persist_iv_index_and_sequence_number(); 1007 } 1008 } 1009 } 1010 1011 static const uint32_t mesh_tag_for_prov_data = ((uint32_t) 'P' << 24) | ((uint32_t) 'R' << 16) | ((uint32_t) 'O' << 8) | (uint32_t)'V'; 1012 1013 typedef struct { 1014 uint16_t unicast_address; 1015 uint8_t flags; 1016 uint8_t device_key[16]; 1017 1018 } mesh_persistent_provisioning_data_t; 1019 1020 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data){ 1021 1022 // fill persistent prov data 1023 mesh_persistent_provisioning_data_t persistent_provisioning_data; 1024 1025 persistent_provisioning_data.unicast_address = provisioning_data->unicast_address; 1026 persistent_provisioning_data.flags = provisioning_data->flags; 1027 (void)memcpy(persistent_provisioning_data.device_key, 1028 provisioning_data->device_key, 16); 1029 1030 // store in tlv 1031 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 1032 int result = 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)); 1033 report_store_error(result, "provisioning"); 1034 1035 // store IV Index and sequence number 1036 mesh_store_iv_index_and_sequence_number(provisioning_data->iv_index, 0); 1037 1038 // store primary network key 1039 mesh_store_network_key(provisioning_data->network_key); 1040 } 1041 1042 static void mesh_access_setup_unprovisioned_device(const uint8_t * device_uuid){ 1043 #ifdef ENABLE_MESH_PB_ADV 1044 // PB-ADV 1045 beacon_unprovisioned_device_start(device_uuid, 0); 1046 #else 1047 UNUSED(device_uuid);; 1048 #endif 1049 #ifdef ENABLE_MESH_PB_GATT 1050 mesh_proxy_start_advertising_unprovisioned_device(); 1051 #endif 1052 } 1053 1054 static void mesh_access_setup_without_provisiong_data_random(void * arg){ 1055 UNUSED(arg); 1056 // set random value 1057 mesh_node_set_device_uuid(random_device_uuid); 1058 mesh_access_setup_unprovisioned_device(random_device_uuid); 1059 } 1060 1061 void mesh_node_reset(void){ 1062 // PROV 1063 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, mesh_tag_for_prov_data); 1064 // everything else 1065 mesh_delete_network_keys(); 1066 mesh_delete_app_keys(); 1067 mesh_delete_appkey_lists(); 1068 mesh_delete_virtual_addresses(); 1069 mesh_delete_subscriptions(); 1070 mesh_delete_publications(); 1071 // also reset iv index + sequence number 1072 mesh_set_iv_index(0); 1073 mesh_sequence_number_set(0); 1074 // start advertising as unprovisioned device 1075 mesh_access_setup_unprovisioned_device(mesh_node_get_device_uuid()); 1076 } 1077 1078 static void mesh_access_setup_with_provisiong_data_random(void * arg){ 1079 UNUSED(arg); 1080 // set random value 1081 mesh_node_set_device_uuid(random_device_uuid); 1082 } 1083 1084 static int mesh_node_startup_from_tlv(void){ 1085 1086 mesh_persistent_provisioning_data_t persistent_provisioning_data; 1087 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 1088 1089 // load provisioning data 1090 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)); 1091 printf("Provisioning data available: %u\n", prov_len ? 1 : 0); 1092 int prov_data_valid = prov_len == sizeof(mesh_persistent_provisioning_data_t); 1093 if (prov_data_valid){ 1094 1095 // copy into mesh_provisioning_data 1096 mesh_provisioning_data_t provisioning_data; 1097 (void)memcpy(provisioning_data.device_key, 1098 persistent_provisioning_data.device_key, 16); 1099 provisioning_data.unicast_address = persistent_provisioning_data.unicast_address; 1100 provisioning_data.flags = persistent_provisioning_data.flags; 1101 provisioning_data.network_key = NULL; 1102 printf("Provisioning Data: Flags %x, unicast_address %04x\n", persistent_provisioning_data.flags, provisioning_data.unicast_address); 1103 1104 // try load iv index and sequence number 1105 uint32_t iv_index = 0; 1106 uint32_t sequence_number = 0; 1107 (void) mesh_load_iv_index_and_sequence_number(&iv_index, &sequence_number); 1108 1109 // bump sequence number to account for interval updates 1110 sequence_number += MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 1111 mesh_store_iv_index_and_sequence_number(iv_index, sequence_number); 1112 1113 mesh_set_iv_index(iv_index); 1114 mesh_sequence_number_set(sequence_number); 1115 provisioning_data.iv_index = iv_index; 1116 printf("IV Index: %08x, Sequence Number %08x\n", (int) iv_index, (int) sequence_number); 1117 1118 // setup iv update, node address, device key ... 1119 mesh_setup_from_provisioning_data(&provisioning_data); 1120 1121 // load network keys 1122 mesh_load_network_keys(); 1123 1124 // load app keys 1125 mesh_load_app_keys(); 1126 1127 // load foundation state 1128 mesh_foundation_state_load(); 1129 1130 // load model to appkey bindings 1131 mesh_load_appkey_lists(); 1132 1133 // load virtual addresses 1134 mesh_load_virtual_addresses(); 1135 1136 // load model subscriptions 1137 mesh_load_subscriptions(); 1138 1139 // load model publications 1140 mesh_load_publications(); 1141 1142 #if defined(ENABLE_MESH_ADV_BEARER) || defined(ENABLE_MESH_PB_ADV) 1143 // start sending Secure Network Beacon 1144 mesh_subnet_t * subnet = mesh_subnet_get_by_netkey_index(0); 1145 if (subnet){ 1146 beacon_secure_network_start(subnet); 1147 } 1148 #endif 1149 // create random uuid if not already set 1150 if (mesh_node_get_device_uuid() == NULL){ 1151 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_with_provisiong_data_random, NULL); 1152 } 1153 1154 // dump into packet log 1155 hci_dump_log(HCI_DUMP_LOG_LEVEL_INFO, "mesh-iv-index: %08x", iv_index); 1156 mesh_log_key("mesh-devkey", 0xffff, persistent_provisioning_data.device_key); 1157 1158 } else { 1159 1160 const uint8_t * device_uuid = mesh_node_get_device_uuid(); 1161 if (device_uuid){ 1162 mesh_access_setup_unprovisioned_device(device_uuid); 1163 } else{ 1164 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_without_provisiong_data_random, NULL); 1165 } 1166 1167 } 1168 1169 return prov_data_valid; 1170 } 1171 1172 static void mesh_control_message_handler(mesh_transport_callback_type_t callback_type, mesh_transport_status_t status, mesh_pdu_t * pdu){ 1173 UNUSED(callback_type); 1174 UNUSED(status); 1175 1176 // get opcode 1177 uint8_t opcode = mesh_pdu_control_opcode(pdu); 1178 printf("MESH Control Message, Opcode: 0x%02x + ", opcode); 1179 printf_hexdump(mesh_pdu_data(pdu), mesh_pdu_len(pdu)); 1180 1181 uint8_t init_ttl; 1182 uint8_t hops = 0; 1183 uint16_t features = 0; 1184 switch(opcode){ 1185 case 0x0a: 1186 // read params 1187 init_ttl = (*mesh_pdu_data(pdu)) & 0x7fu; 1188 features = big_endian_read_16(mesh_pdu_data(pdu), 1); 1189 // calculates hops 1190 hops = init_ttl - mesh_pdu_ttl(pdu) + 1; 1191 // process heartbeat info 1192 mesh_configuration_server_process_heartbeat(&mesh_configuration_server_model, mesh_pdu_src(pdu), mesh_pdu_dst(pdu), hops, features); 1193 break; 1194 default: 1195 break; 1196 } 1197 mesh_upper_transport_message_processed_by_higher_layer(pdu); 1198 } 1199 1200 static void mesh_node_setup_default_models(void){ 1201 // configure Config Server 1202 mesh_configuration_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_CONFIGURATION_SERVER); 1203 mesh_configuration_server_model.model_data = &mesh_configuration_server_model_context; 1204 mesh_configuration_server_model.operations = mesh_configuration_server_get_operations(); 1205 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_configuration_server_model); 1206 1207 // Config Health Server 1208 mesh_health_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_HEALTH_SERVER); 1209 mesh_health_server_model.model_data = &mesh_health_server_model_context; 1210 mesh_health_server_model.operations = mesh_health_server_get_operations(); 1211 mesh_health_server_model.publication_model = &mesh_health_server_publication; 1212 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_health_server_model); 1213 mesh_health_server_set_publication_model(&mesh_health_server_model, &mesh_health_server_publication); 1214 } 1215 1216 void mesh_init(void){ 1217 1218 // register for HCI events 1219 hci_event_callback_registration.callback = &hci_packet_handler; 1220 hci_add_event_handler(&hci_event_callback_registration); 1221 1222 // ADV Bearer also used for GATT Proxy Advertisements and PB-GATT 1223 adv_bearer_init(); 1224 1225 #ifdef ENABLE_MESH_GATT_BEARER 1226 // Setup GATT bearer 1227 gatt_bearer_init(); 1228 #endif 1229 1230 #ifdef ENABLE_MESH_ADV_BEARER 1231 // Setup Unprovisioned Device Beacon 1232 beacon_init(); 1233 #endif 1234 1235 provisioning_device_init(); 1236 provisioning_device_register_packet_handler(&mesh_provisioning_message_handler); 1237 1238 #ifdef ENABLE_MESH_PROVISIONER 1239 provisioning_provisioner_init(); 1240 provisioning_provisioner_register_packet_handler(&mesh_provisioning_message_handler); 1241 #endif 1242 1243 // Node Configuration 1244 mesh_node_init(); 1245 1246 // Network layer 1247 mesh_network_init(); 1248 1249 // Transport layers (lower + upper)) 1250 mesh_lower_transport_init(); 1251 mesh_upper_transport_init(); 1252 1253 // Access layer 1254 mesh_access_init(); 1255 1256 // Add mandatory models: Config Server and Health Server 1257 mesh_node_setup_default_models(); 1258 1259 // register for secure network beacons 1260 beacon_register_for_secure_network_beacons(&mesh_access_secure_network_beacon_handler); 1261 1262 // register for seq number updates 1263 mesh_sequence_number_set_update_callback(&mesh_persist_iv_index_and_sequence_number_if_needed); 1264 1265 // register for control messages 1266 mesh_upper_transport_register_control_message_handler(&mesh_control_message_handler); 1267 } 1268 1269 /** 1270 * Register for Mesh Provisioning Device events 1271 * @param packet_handler 1272 */ 1273 void mesh_register_provisioning_device_packet_handler(btstack_packet_handler_t packet_handler){ 1274 provisioning_device_packet_handler = packet_handler; 1275 } 1276