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