1 /* 2 * Copyright (C) 2019 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define BTSTACK_FILE__ "mesh.c" 39 40 #include <string.h> 41 #include <stdio.h> 42 43 #include "mesh/mesh.h" 44 45 #include "btstack_util.h" 46 #include "btstack_config.h" 47 #include "btstack_event.h" 48 #include "btstack_tlv.h" 49 #include "btstack_memory.h" 50 #include "btstack_debug.h" 51 52 #include "mesh/adv_bearer.h" 53 #include "mesh/beacon.h" 54 #include "mesh/gatt_bearer.h" 55 #include "mesh/mesh_access.h" 56 #include "mesh/mesh_configuration_server.h" 57 #include "mesh/mesh_health_server.h" 58 #include "mesh/mesh_foundation.h" 59 #include "mesh/mesh_generic_model.h" 60 #include "mesh/mesh_generic_on_off_server.h" 61 #include "mesh/mesh_iv_index_seq_number.h" 62 #include "mesh/mesh_lower_transport.h" 63 #include "mesh/mesh_peer.h" 64 #include "mesh/mesh_proxy.h" 65 #include "mesh/mesh_upper_transport.h" 66 #include "mesh/mesh_virtual_addresses.h" 67 #include "mesh/pb_adv.h" 68 #include "mesh/pb_gatt.h" 69 #include "mesh/provisioning.h" 70 #include "mesh/provisioning_device.h" 71 72 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data); 73 static int mesh_node_startup_from_tlv(void); 74 75 // Persistent storage structures 76 77 typedef struct { 78 uint16_t hash; 79 uint8_t label_uuid[16]; 80 } mesh_persistent_virtual_address_t; 81 82 typedef struct { 83 uint16_t netkey_index; 84 85 uint8_t version; 86 87 // net_key from provisioner or Config Model Client 88 uint8_t net_key[16]; 89 90 // derived data 91 92 // k1 93 uint8_t identity_key[16]; 94 uint8_t beacon_key[16]; 95 96 // k3 97 uint8_t network_id[8]; 98 99 // k2 100 uint8_t nid; 101 uint8_t encryption_key[16]; 102 uint8_t privacy_key[16]; 103 } mesh_persistent_net_key_t; 104 105 typedef struct { 106 uint16_t netkey_index; 107 uint16_t appkey_index; 108 uint8_t aid; 109 uint8_t version; 110 uint8_t key[16]; 111 } mesh_persistent_app_key_t; 112 113 typedef struct { 114 uint8_t gatt_proxy; 115 uint8_t beacon; 116 uint8_t default_ttl; 117 uint8_t network_transmit; 118 uint8_t relay; 119 uint8_t relay_retransmit; 120 uint8_t friend; 121 } mesh_persistent_foundation_t; 122 123 typedef struct { 124 uint16_t publish_address; 125 uint16_t appkey_index; 126 uint8_t friendship_credential_flag; 127 uint8_t publish_period; 128 uint8_t publish_ttl; 129 uint8_t publish_retransmit; 130 } mesh_persistent_publication_t; 131 132 typedef struct { 133 uint32_t iv_index; 134 uint32_t seq_number; 135 } iv_index_and_sequence_number_t; 136 137 static btstack_packet_handler_t provisioning_device_packet_handler; 138 static btstack_packet_callback_registration_t hci_event_callback_registration; 139 static int provisioned; 140 141 // Mandatory Confiuration Server 142 static mesh_model_t mesh_configuration_server_model; 143 static mesh_configuration_server_model_context_t mesh_configuration_server_model_context; 144 145 // Mandatory Health Server 146 static mesh_publication_model_t mesh_health_server_publication; 147 static mesh_model_t mesh_health_server_model; 148 static mesh_health_state_t mesh_health_server_model_context; 149 150 // Random UUID on start 151 static btstack_crypto_random_t mesh_access_crypto_random; 152 static uint8_t random_device_uuid[16]; 153 154 // TLV 155 static const btstack_tlv_t * btstack_tlv_singleton_impl; 156 static void * btstack_tlv_singleton_context; 157 158 // IV Index persistence 159 static uint32_t sequence_number_last_stored; 160 static uint32_t sequence_number_storage_trigger; 161 162 // Attention Timer 163 static uint8_t attention_timer_timeout_s; 164 static btstack_timer_source_t attention_timer_timer; 165 166 // used to log all keys to packet log for log viewer 167 // mesh-appkey-0xxx: 1234567890abcdef1234567890abcdef 168 static void mesh_log_key(const char * prefix, uint16_t id, const uint8_t * key){ 169 char line[60]; 170 strcpy(line, prefix); 171 uint16_t pos = strlen(line); 172 if (id != 0xffff){ 173 line[pos++] = '-'; 174 line[pos++] = '0'; 175 line[pos++] = char_for_nibble((id >> 8) & 0x0f); 176 line[pos++] = char_for_nibble((id >> 4) & 0x0f); 177 line[pos++] = char_for_nibble( id & 0x0f); 178 } 179 line[pos++] = ':'; 180 line[pos++] = ' '; 181 uint16_t i; 182 for (i=0;i<16;i++){ 183 line[pos++] = char_for_nibble((key[i] >> 4) & 0x0f); 184 line[pos++] = char_for_nibble( key[i] & 0x0f); 185 } 186 line[pos++] = 0; 187 hci_dump_log(HCI_DUMP_LOG_LEVEL_INFO, "%s", line); 188 } 189 190 static void mesh_setup_from_provisioning_data(const mesh_provisioning_data_t * provisioning_data){ 191 192 // set iv_index and iv index update active 193 int iv_index_update_active = (provisioning_data->flags & 2) >> 1; 194 mesh_iv_index_recovered(iv_index_update_active, provisioning_data->iv_index); 195 196 // set unicast address 197 mesh_node_primary_element_address_set(provisioning_data->unicast_address); 198 199 // set device_key 200 mesh_transport_set_device_key(provisioning_data->device_key); 201 202 if (provisioning_data->network_key){ 203 204 // setup primary network with provisioned netkey 205 mesh_network_key_add(provisioning_data->network_key); 206 207 // setup primary network 208 mesh_subnet_setup_for_netkey_index(provisioning_data->network_key->netkey_index); 209 210 // start sending Secure Network Beacons 211 mesh_subnet_t * provisioned_subnet = mesh_subnet_get_by_netkey_index(provisioning_data->network_key->netkey_index); 212 beacon_secure_network_start(provisioned_subnet); 213 } 214 215 // Mesh Proxy 216 #ifdef ENABLE_MESH_PROXY_SERVER 217 // Setup Proxy 218 mesh_proxy_init(provisioning_data->unicast_address); 219 mesh_proxy_start_advertising_with_network_id(); 220 #endif 221 } 222 223 // Attention Timer state 224 static void mesh_emit_attention_timer_event(uint8_t timer_s){ 225 if (!provisioning_device_packet_handler) return; 226 uint8_t event[4] = { HCI_EVENT_MESH_META, 4, MESH_SUBEVENT_ATTENTION_TIMER}; 227 event[3] = timer_s; 228 provisioning_device_packet_handler(HCI_EVENT_PACKET, 0, event, sizeof(event)); 229 } 230 231 static void mesh_attention_timer_handler(btstack_timer_source_t * ts){ 232 UNUSED(ts); 233 attention_timer_timeout_s--; 234 mesh_emit_attention_timer_event(attention_timer_timeout_s); 235 if (attention_timer_timeout_s == 0) return; 236 237 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 238 btstack_run_loop_add_timer(&attention_timer_timer); 239 } 240 241 void mesh_attention_timer_set(uint8_t timer_s){ 242 // stop old timer if running 243 if (attention_timer_timeout_s){ 244 btstack_run_loop_remove_timer(&attention_timer_timer); 245 } 246 247 attention_timer_timeout_s = timer_s; 248 mesh_emit_attention_timer_event(attention_timer_timeout_s); 249 250 if (attention_timer_timeout_s){ 251 btstack_run_loop_set_timer_handler(&attention_timer_timer, &mesh_attention_timer_handler); 252 btstack_run_loop_set_timer(&attention_timer_timer, 1000); 253 btstack_run_loop_add_timer(&attention_timer_timer); 254 } 255 } 256 257 uint8_t mesh_attention_timer_get(void){ 258 return attention_timer_timeout_s; 259 } 260 261 static void mesh_provisioning_message_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 262 mesh_provisioning_data_t provisioning_data; 263 switch(packet[0]){ 264 case HCI_EVENT_MESH_META: 265 switch(packet[2]){ 266 case MESH_SUBEVENT_PB_PROV_ATTENTION_TIMER: 267 mesh_attention_timer_set(mesh_subevent_pb_prov_attention_timer_get_attention_time(packet)); 268 break; 269 case MESH_SUBEVENT_PB_PROV_COMPLETE: 270 // get provisioning data 271 provisioning_device_data_get(&provisioning_data); 272 273 // and store in TLV 274 mesh_node_store_provisioning_data(&provisioning_data); 275 276 // setup node after provisioned 277 mesh_setup_from_provisioning_data(&provisioning_data); 278 279 #ifdef ENABLE_MESH_PROXY_SERVER 280 // start advertising with node id after provisioning 281 mesh_proxy_set_advertising_with_node_id(provisioning_data.network_key->netkey_index, MESH_NODE_IDENTITY_STATE_ADVERTISING_RUNNING); 282 #endif 283 284 provisioned = 1; 285 break; 286 default: 287 break; 288 } 289 break; 290 default: 291 break; 292 } 293 if (provisioning_device_packet_handler == NULL) return; 294 295 // forward 296 (*provisioning_device_packet_handler)(packet_type, channel, packet, size); 297 } 298 299 static void hci_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 300 UNUSED(channel); 301 UNUSED(size); 302 303 switch (packet_type) { 304 case HCI_EVENT_PACKET: 305 switch (hci_event_packet_get_type(packet)) { 306 case BTSTACK_EVENT_STATE: 307 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 308 // get TLV instance 309 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 310 311 // startup from static provisioning data stored in TLV 312 provisioned = mesh_node_startup_from_tlv(); 313 break; 314 315 #ifdef ENABLE_MESH_PROXY_SERVER 316 case HCI_EVENT_DISCONNECTION_COMPLETE: 317 // enable PB_GATT 318 if (provisioned == 0){ 319 mesh_proxy_start_advertising_unprovisioned_device(); 320 } else { 321 mesh_proxy_start_advertising_with_network_id(); 322 } 323 break; 324 325 case HCI_EVENT_LE_META: 326 if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break; 327 // disable PB_GATT 328 mesh_proxy_stop_advertising_unprovisioned_device(); 329 break; 330 #endif 331 default: 332 break; 333 } 334 break; 335 } 336 } 337 338 static void report_store_error(int result, const char * type){ 339 if (result != 0){ 340 log_error("Store %s data failed", type); 341 } 342 } 343 344 // Foundation state 345 static const uint32_t mesh_foundation_state_tag = ((uint32_t) 'M' << 24) | ((uint32_t) 'F' << 16) | ((uint32_t) 'N' << 8) | ((uint32_t) 'D' << 8); 346 347 void mesh_foundation_state_load(void){ 348 mesh_persistent_foundation_t data; 349 350 int foundation_state_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 351 if (foundation_state_len != sizeof(data)) return; 352 353 mesh_foundation_gatt_proxy_set(data.gatt_proxy); 354 mesh_foundation_beacon_set(data.beacon); 355 mesh_foundation_default_ttl_set(data.default_ttl); 356 mesh_foundation_friend_set(data.friend); 357 mesh_foundation_network_transmit_set(data.network_transmit); 358 mesh_foundation_relay_set(data.relay); 359 mesh_foundation_relay_retransmit_set(data.relay_retransmit); 360 } 361 362 void mesh_foundation_state_store(void){ 363 mesh_persistent_foundation_t data; 364 data.gatt_proxy = mesh_foundation_gatt_proxy_get(); 365 data.beacon = mesh_foundation_beacon_get(); 366 data.default_ttl = mesh_foundation_default_ttl_get(); 367 data.friend = mesh_foundation_friend_get(); 368 data.network_transmit = mesh_foundation_network_transmit_get(); 369 data.relay = mesh_foundation_relay_get(); 370 data.relay_retransmit = mesh_foundation_relay_retransmit_get(); 371 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, mesh_foundation_state_tag, (uint8_t *) &data, sizeof(data)); 372 report_store_error(result, "foundation"); 373 } 374 375 // Mesh Virtual Address Management 376 static uint32_t mesh_virtual_address_tag_for_pseudo_dst(uint16_t pseudo_dst){ 377 return ((uint32_t) 'M' << 24) | ((uint32_t) 'V' << 16) | ((uint32_t) pseudo_dst); 378 } 379 380 static void mesh_store_virtual_address(uint16_t pseudo_dest, uint16_t hash, const uint8_t * label_uuid){ 381 mesh_persistent_virtual_address_t data; 382 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 383 data.hash = hash; 384 (void)memcpy(data.label_uuid, label_uuid, 16); 385 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 386 report_store_error(result, "virtual address"); 387 } 388 389 static void mesh_delete_virtual_address(uint16_t pseudo_dest){ 390 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dest); 391 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 392 } 393 394 void mesh_load_virtual_addresses(void){ 395 uint16_t pseudo_dst; 396 for (pseudo_dst = 0x8000; pseudo_dst < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dst++){ 397 mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 398 mesh_persistent_virtual_address_t data; 399 uint32_t tag = mesh_virtual_address_tag_for_pseudo_dst(pseudo_dst); 400 int virtual_address_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 401 if (virtual_address_len == 0) continue; 402 403 mesh_virtual_address_t * virtual_address = btstack_memory_mesh_virtual_address_get(); 404 if (virtual_address == NULL) return; 405 406 virtual_address->pseudo_dst = pseudo_dst; 407 virtual_address->hash = data.hash; 408 (void)memcpy(virtual_address->label_uuid, data.label_uuid, 16); 409 mesh_virtual_address_add(virtual_address); 410 } 411 } 412 413 void mesh_delete_virtual_addresses(void){ 414 uint16_t pseudo_dest; 415 for (pseudo_dest = 0x8000; pseudo_dest < (0x8000 + MAX_NR_MESH_VIRTUAL_ADDRESSES); pseudo_dest++){ 416 mesh_delete_virtual_address(pseudo_dest); 417 } 418 } 419 420 void mesh_virtual_address_decrease_refcount(mesh_virtual_address_t * virtual_address){ 421 if (virtual_address == NULL){ 422 log_error("virtual_address == NULL"); 423 } 424 // decrease refcount 425 virtual_address->ref_count--; 426 // Free virtual address if ref count reaches zero 427 if (virtual_address->ref_count > 0) return; 428 // delete from TLV 429 mesh_delete_virtual_address(virtual_address->pseudo_dst); 430 // remove from list 431 mesh_virtual_address_remove(virtual_address); 432 // free memory 433 btstack_memory_mesh_virtual_address_free(virtual_address); 434 } 435 436 void mesh_virtual_address_increase_refcount(mesh_virtual_address_t * virtual_address){ 437 if (virtual_address == NULL){ 438 log_error("virtual_address == NULL"); 439 } 440 virtual_address->ref_count++; 441 if (virtual_address->ref_count > 1) return; 442 // store in TLV 443 mesh_store_virtual_address(virtual_address->pseudo_dst, virtual_address->hash, virtual_address->label_uuid); 444 } 445 446 // Mesh Subscriptions 447 static uint32_t mesh_model_subscription_tag_for_index(uint16_t internal_model_id){ 448 return ((uint32_t) 'M' << 24) | ((uint32_t) 'S' << 16) | ((uint32_t) internal_model_id); 449 } 450 451 static void mesh_model_load_subscriptions(mesh_model_t * mesh_model){ 452 uint32_t tag = mesh_model_subscription_tag_for_index(mesh_model->mid); 453 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &mesh_model->subscriptions, sizeof(mesh_model->subscriptions)); 454 // update ref count 455 456 // increase ref counts for virtual subscriptions 457 uint16_t i; 458 for (i = 0; i<MAX_NR_MESH_SUBSCRIPTION_PER_MODEL ; i++){ 459 uint16_t src = mesh_model->subscriptions[i]; 460 if (mesh_network_address_virtual(src)){ 461 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 462 mesh_virtual_address_increase_refcount(virtual_address); 463 } 464 } 465 } 466 467 void mesh_model_store_subscriptions(mesh_model_t * model){ 468 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 469 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->subscriptions, sizeof(model->subscriptions)); 470 report_store_error(result, "subscription"); 471 } 472 473 static void mesh_model_delete_subscriptions(mesh_model_t * model){ 474 uint32_t tag = mesh_model_subscription_tag_for_index(model->mid); 475 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 476 } 477 478 void mesh_load_subscriptions(void){ 479 printf("Load Model Subscription Lists\n"); 480 // iterate over elements and models 481 mesh_element_iterator_t element_it; 482 mesh_element_iterator_init(&element_it); 483 while (mesh_element_iterator_has_next(&element_it)){ 484 mesh_element_t * element = mesh_element_iterator_next(&element_it); 485 mesh_model_iterator_t model_it; 486 mesh_model_iterator_init(&model_it, element); 487 while (mesh_model_iterator_has_next(&model_it)){ 488 mesh_model_t * model = mesh_model_iterator_next(&model_it); 489 mesh_model_load_subscriptions(model); 490 } 491 } 492 } 493 494 void mesh_delete_subscriptions(void){ 495 printf("Delete Model Subscription Lists\n"); 496 // iterate over elements and models 497 mesh_element_iterator_t element_it; 498 mesh_element_iterator_init(&element_it); 499 while (mesh_element_iterator_has_next(&element_it)){ 500 mesh_element_t * element = mesh_element_iterator_next(&element_it); 501 mesh_model_iterator_t model_it; 502 mesh_model_iterator_init(&model_it, element); 503 while (mesh_model_iterator_has_next(&model_it)){ 504 mesh_model_t * model = mesh_model_iterator_next(&model_it); 505 mesh_model_delete_subscriptions(model); 506 } 507 } 508 } 509 510 // Model Publication 511 512 static uint32_t mesh_model_publication_tag_for_index(uint16_t internal_model_id){ 513 return ((uint32_t) 'M' << 24) | ((uint32_t) 'P' << 16) | ((uint32_t) internal_model_id); 514 } 515 516 static void mesh_model_load_publication(mesh_model_t * mesh_model){ 517 mesh_publication_model_t * publication = mesh_model->publication_model; 518 if (publication == NULL) return; 519 520 mesh_persistent_publication_t data; 521 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 522 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 523 524 publication->address = data.publish_address; 525 publication->appkey_index = data.appkey_index; 526 publication->friendship_credential_flag = data.friendship_credential_flag; 527 publication->ttl = data.publish_ttl; 528 publication->period = data.publish_period; 529 publication->retransmit = data.publish_retransmit; 530 531 // increase ref counts for current virtual publicataion address 532 uint16_t src = publication->address; 533 if (mesh_network_address_virtual(src)){ 534 mesh_virtual_address_t * virtual_address = mesh_virtual_address_for_pseudo_dst(src); 535 if (virtual_address){ 536 mesh_virtual_address_increase_refcount(virtual_address); 537 } 538 } 539 540 mesh_model_publication_start(mesh_model); 541 } 542 543 void mesh_model_store_publication(mesh_model_t * mesh_model){ 544 mesh_publication_model_t * publication = mesh_model->publication_model; 545 if (publication == NULL) return; 546 547 mesh_persistent_publication_t data; 548 data.publish_address = publication->address; 549 data.appkey_index = publication->appkey_index; 550 data.friendship_credential_flag = publication->friendship_credential_flag; 551 data.publish_ttl = publication->ttl; 552 data.publish_period = publication->period; 553 data.publish_retransmit = publication->retransmit; 554 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 555 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_publication_t)); 556 report_store_error(result, "publication"); 557 } 558 559 static void mesh_model_delete_publication(mesh_model_t * mesh_model){ 560 if (mesh_model->publication_model == NULL) return; 561 uint32_t tag = mesh_model_publication_tag_for_index(mesh_model->mid); 562 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 563 } 564 565 void mesh_load_publications(void){ 566 printf("Load Model Publications\n"); 567 // iterate over elements and models 568 mesh_element_iterator_t element_it; 569 mesh_element_iterator_init(&element_it); 570 while (mesh_element_iterator_has_next(&element_it)){ 571 mesh_element_t * element = mesh_element_iterator_next(&element_it); 572 mesh_model_iterator_t model_it; 573 mesh_model_iterator_init(&model_it, element); 574 while (mesh_model_iterator_has_next(&model_it)){ 575 mesh_model_t * model = mesh_model_iterator_next(&model_it); 576 mesh_model_load_publication(model); 577 } 578 } 579 } 580 581 void mesh_delete_publications(void){ 582 printf("Delete Model Publications\n"); 583 // iterate over elements and models 584 mesh_element_iterator_t element_it; 585 mesh_element_iterator_init(&element_it); 586 while (mesh_element_iterator_has_next(&element_it)){ 587 mesh_element_t * element = mesh_element_iterator_next(&element_it); 588 mesh_model_iterator_t model_it; 589 mesh_model_iterator_init(&model_it, element); 590 while (mesh_model_iterator_has_next(&model_it)){ 591 mesh_model_t * model = mesh_model_iterator_next(&model_it); 592 mesh_model_delete_publication(model); 593 } 594 } 595 } 596 597 // Mesh Network Keys 598 static uint32_t mesh_network_key_tag_for_internal_index(uint16_t internal_index){ 599 return ((uint32_t) 'M' << 24) | ((uint32_t) 'N' << 16) | ((uint32_t) internal_index); 600 } 601 602 void mesh_store_network_key(mesh_network_key_t * network_key){ 603 mesh_persistent_net_key_t data; 604 printf("Store NetKey: internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 605 printf_hexdump(network_key->net_key, 16); 606 uint32_t tag = mesh_network_key_tag_for_internal_index(network_key->internal_index); 607 data.netkey_index = network_key->netkey_index; 608 (void)memcpy(data.net_key, network_key->net_key, 16); 609 (void)memcpy(data.identity_key, network_key->identity_key, 16); 610 (void)memcpy(data.beacon_key, network_key->beacon_key, 16); 611 (void)memcpy(data.network_id, network_key->network_id, 8); 612 data.nid = network_key->nid; 613 data.version = network_key->version; 614 (void)memcpy(data.encryption_key, network_key->encryption_key, 16); 615 (void)memcpy(data.privacy_key, network_key->privacy_key, 16); 616 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(mesh_persistent_net_key_t)); 617 report_store_error(result, "network key"); 618 } 619 620 void mesh_delete_network_key(uint16_t internal_index){ 621 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 622 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 623 } 624 625 void mesh_load_network_keys(void){ 626 printf("Load Network Keys\n"); 627 uint16_t internal_index; 628 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 629 mesh_persistent_net_key_t data; 630 uint32_t tag = mesh_network_key_tag_for_internal_index(internal_index); 631 int netkey_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 632 if (netkey_len != sizeof(mesh_persistent_net_key_t)) continue; 633 634 mesh_network_key_t * network_key = btstack_memory_mesh_network_key_get(); 635 if (network_key == NULL) return; 636 637 network_key->internal_index = internal_index; 638 network_key->netkey_index = data.netkey_index; 639 (void)memcpy(network_key->net_key, data.net_key, 16); 640 (void)memcpy(network_key->identity_key, data.identity_key, 16); 641 (void)memcpy(network_key->beacon_key, data.beacon_key, 16); 642 (void)memcpy(network_key->network_id, data.network_id, 8); 643 network_key->nid = data.nid; 644 network_key->version = data.version; 645 (void)memcpy(network_key->encryption_key, data.encryption_key, 16); 646 (void)memcpy(network_key->privacy_key, data.privacy_key, 16); 647 648 #ifdef ENABLE_GATT_BEARER 649 // setup advertisement with network id 650 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); 651 #endif 652 653 mesh_network_key_add(network_key); 654 655 mesh_subnet_setup_for_netkey_index(network_key->netkey_index); 656 657 printf("- internal index 0x%x, NetKey Index 0x%06x, NID %02x: ", network_key->internal_index, network_key->netkey_index, network_key->nid); 658 printf_hexdump(network_key->net_key, 16); 659 660 // dump into packet log 661 mesh_log_key("mesh-netkey", network_key->netkey_index, network_key->net_key); 662 } 663 } 664 665 void mesh_delete_network_keys(void){ 666 printf("Delete Network Keys\n"); 667 668 uint16_t internal_index; 669 for (internal_index = 0; internal_index < MAX_NR_MESH_NETWORK_KEYS; internal_index++){ 670 mesh_delete_network_key(internal_index); 671 } 672 } 673 674 // Mesh App Keys 675 676 static uint32_t mesh_transport_key_tag_for_internal_index(uint16_t internal_index){ 677 return ((uint32_t) 'M' << 24) | ((uint32_t) 'A' << 16) | ((uint32_t) internal_index); 678 } 679 680 void mesh_store_app_key(mesh_transport_key_t * app_key){ 681 mesh_persistent_app_key_t data; 682 printf("Store AppKey: internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", app_key->internal_index, app_key->appkey_index, app_key->aid); 683 printf_hexdump(app_key->key, 16); 684 uint32_t tag = mesh_transport_key_tag_for_internal_index(app_key->internal_index); 685 data.netkey_index = app_key->netkey_index; 686 data.appkey_index = app_key->appkey_index; 687 data.aid = app_key->aid; 688 data.version = app_key->version; 689 (void)memcpy(data.key, app_key->key, 16); 690 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 691 report_store_error(result, "app key"); 692 } 693 694 void mesh_delete_app_key(uint16_t internal_index){ 695 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 696 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 697 } 698 699 void mesh_load_app_keys(void){ 700 printf("Load App Keys\n"); 701 uint16_t internal_index; 702 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 703 mesh_persistent_app_key_t data; 704 uint32_t tag = mesh_transport_key_tag_for_internal_index(internal_index); 705 int app_key_len = btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &data, sizeof(data)); 706 if (app_key_len == 0) continue; 707 708 mesh_transport_key_t * key = btstack_memory_mesh_transport_key_get(); 709 if (key == NULL) return; 710 711 key->internal_index = internal_index; 712 key->appkey_index = data.appkey_index; 713 key->netkey_index = data.netkey_index; 714 key->aid = data.aid; 715 key->akf = 1; 716 key->version = data.version; 717 (void)memcpy(key->key, data.key, 16); 718 mesh_transport_key_add(key); 719 printf("- internal index 0x%x, AppKey Index 0x%06x, AID %02x: ", key->internal_index, key->appkey_index, key->aid); 720 printf_hexdump(key->key, 16); 721 722 // dump into packet log 723 mesh_log_key("mesh-appkey", key->appkey_index, key->key); 724 } 725 } 726 727 void mesh_delete_app_keys(void){ 728 printf("Delete App Keys\n"); 729 730 uint16_t internal_index; 731 for (internal_index = 0; internal_index < MAX_NR_MESH_TRANSPORT_KEYS; internal_index++){ 732 mesh_delete_app_key(internal_index); 733 } 734 } 735 736 737 // Model to Appkey List 738 739 static uint32_t mesh_model_tag_for_index(uint16_t internal_model_id){ 740 return ((uint32_t) 'M' << 24) | ((uint32_t) 'B' << 16) | ((uint32_t) internal_model_id); 741 } 742 743 static void mesh_load_appkey_list(mesh_model_t * model){ 744 uint32_t tag = mesh_model_tag_for_index(model->mid); 745 btstack_tlv_singleton_impl->get_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 746 } 747 748 static void mesh_store_appkey_list(mesh_model_t * model){ 749 uint32_t tag = mesh_model_tag_for_index(model->mid); 750 int result = btstack_tlv_singleton_impl->store_tag(btstack_tlv_singleton_context, tag, (uint8_t *) &model->appkey_indices, sizeof(model->appkey_indices)); 751 report_store_error(result, "appkey list"); 752 } 753 754 static void mesh_delete_appkey_list(mesh_model_t * model){ 755 uint32_t tag = mesh_model_tag_for_index(model->mid); 756 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, tag); 757 } 758 759 void mesh_load_appkey_lists(void){ 760 printf("Load Appkey Lists\n"); 761 // iterate over elements and models 762 mesh_element_iterator_t element_it; 763 mesh_element_iterator_init(&element_it); 764 while (mesh_element_iterator_has_next(&element_it)){ 765 mesh_element_t * element = mesh_element_iterator_next(&element_it); 766 mesh_model_iterator_t model_it; 767 mesh_model_iterator_init(&model_it, element); 768 while (mesh_model_iterator_has_next(&model_it)){ 769 mesh_model_t * model = mesh_model_iterator_next(&model_it); 770 mesh_load_appkey_list(model); 771 } 772 } 773 } 774 775 void mesh_delete_appkey_lists(void){ 776 printf("Delete Appkey Lists\n"); 777 // iterate over elements and models 778 mesh_element_iterator_t element_it; 779 mesh_element_iterator_init(&element_it); 780 while (mesh_element_iterator_has_next(&element_it)){ 781 mesh_element_t * element = mesh_element_iterator_next(&element_it); 782 mesh_model_iterator_t model_it; 783 mesh_model_iterator_init(&model_it, element); 784 while (mesh_model_iterator_has_next(&model_it)){ 785 mesh_model_t * model = mesh_model_iterator_next(&model_it); 786 mesh_delete_appkey_list(model); 787 } 788 } 789 } 790 791 uint8_t mesh_model_bind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 792 uint16_t i; 793 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 794 if (mesh_model->appkey_indices[i] == appkey_index) return MESH_FOUNDATION_STATUS_SUCCESS; 795 } 796 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 797 if (mesh_model->appkey_indices[i] == MESH_APPKEY_INVALID) { 798 mesh_model->appkey_indices[i] = appkey_index; 799 mesh_store_appkey_list(mesh_model); 800 return MESH_FOUNDATION_STATUS_SUCCESS; 801 } 802 } 803 return MESH_FOUNDATION_STATUS_INSUFFICIENT_RESOURCES; 804 } 805 806 void mesh_model_unbind_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 807 uint16_t i; 808 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 809 if (mesh_model->appkey_indices[i] == appkey_index) { 810 mesh_model->appkey_indices[i] = MESH_APPKEY_INVALID; 811 mesh_store_appkey_list(mesh_model); 812 } 813 } 814 } 815 816 int mesh_model_contains_appkey(mesh_model_t * mesh_model, uint16_t appkey_index){ 817 uint16_t i; 818 for (i=0;i<MAX_NR_MESH_APPKEYS_PER_MODEL;i++){ 819 if (mesh_model->appkey_indices[i] == appkey_index) return 1; 820 } 821 return 0; 822 } 823 824 void mesh_access_netkey_finalize(mesh_network_key_t * network_key){ 825 mesh_network_key_remove(network_key); 826 mesh_delete_network_key(network_key->internal_index); 827 btstack_memory_mesh_network_key_free(network_key); 828 } 829 830 void mesh_access_appkey_finalize(mesh_transport_key_t * transport_key){ 831 mesh_transport_key_remove(transport_key); 832 mesh_delete_app_key(transport_key->appkey_index); 833 btstack_memory_mesh_transport_key_free(transport_key); 834 } 835 836 void mesh_access_key_refresh_revoke_keys(mesh_subnet_t * subnet){ 837 // delete old netkey index 838 mesh_access_netkey_finalize(subnet->old_key); 839 subnet->old_key = subnet->new_key; 840 subnet->new_key = NULL; 841 842 // delete old appkeys, if any 843 mesh_transport_key_iterator_t it; 844 mesh_transport_key_iterator_init(&it, subnet->netkey_index); 845 while (mesh_transport_key_iterator_has_more(&it)){ 846 mesh_transport_key_t * transport_key = mesh_transport_key_iterator_get_next(&it); 847 if (transport_key->old_key == 0) continue; 848 mesh_access_appkey_finalize(transport_key); 849 } 850 } 851 852 // Mesh IV Index 853 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'); 854 855 static int mesh_load_iv_index_and_sequence_number(uint32_t * iv_index, uint32_t * sequence_number){ 856 iv_index_and_sequence_number_t data; 857 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)); 858 if (len == sizeof(iv_index_and_sequence_number_t)){ 859 *iv_index = data.iv_index; 860 *sequence_number = data.seq_number; 861 return 1; 862 } 863 return 0; 864 } 865 866 static void mesh_store_iv_index_and_sequence_number(uint32_t iv_index, uint32_t sequence_number){ 867 iv_index_and_sequence_number_t data; 868 data.iv_index = iv_index; 869 data.seq_number = sequence_number; 870 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)); 871 report_store_error(result, "index and sequence number"); 872 873 sequence_number_last_stored = data.seq_number; 874 sequence_number_storage_trigger = sequence_number_last_stored + MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 875 } 876 877 static void mesh_persist_iv_index_and_sequence_number(void){ 878 mesh_store_iv_index_and_sequence_number(mesh_get_iv_index(), mesh_sequence_number_peek()); 879 } 880 881 882 // higher layer - only store if sequence number is higher than trigger 883 static void mesh_persist_iv_index_and_sequence_number_if_needed(void){ 884 if (mesh_sequence_number_peek() >= sequence_number_storage_trigger){ 885 mesh_persist_iv_index_and_sequence_number(); 886 } 887 } 888 889 static void mesh_access_secure_network_beacon_handler(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size){ 890 UNUSED(channel); 891 UNUSED(size); 892 893 if (packet_type != MESH_BEACON_PACKET) return; 894 895 // lookup subnet and netkey by network id 896 uint8_t * beacon_network_id = &packet[2]; 897 mesh_subnet_iterator_t it; 898 mesh_subnet_iterator_init(&it); 899 mesh_subnet_t * subnet = NULL; 900 uint8_t new_key = 0; 901 while (mesh_subnet_iterator_has_more(&it)){ 902 mesh_subnet_t * item = mesh_subnet_iterator_get_next(&it); 903 if (memcmp(item->old_key->network_id, beacon_network_id, 8) == 0 ) { 904 subnet = item; 905 } 906 if (item->new_key != NULL && memcmp(item->new_key->network_id, beacon_network_id, 8) == 0 ) { 907 subnet = item; 908 new_key = 1; 909 } 910 break; 911 } 912 if (subnet == NULL) return; 913 914 uint8_t flags = packet[1]; 915 916 // Key refresh via secure network beacons that are authenticated with new netkey 917 if (new_key){ 918 // either first or second phase (in phase 0, new key is not set) 919 int key_refresh_flag = flags & 1; 920 if (key_refresh_flag){ 921 // transition to phase 3 from either phase 1 or 2 922 switch (subnet->key_refresh){ 923 case MESH_KEY_REFRESH_FIRST_PHASE: 924 case MESH_KEY_REFRESH_SECOND_PHASE: 925 mesh_access_key_refresh_revoke_keys(subnet); 926 subnet->key_refresh = MESH_KEY_REFRESH_NOT_ACTIVE; 927 break; 928 default: 929 break; 930 } 931 } else { 932 // transition to phase 2 from either phase 1 933 switch (subnet->key_refresh){ 934 case MESH_KEY_REFRESH_FIRST_PHASE: 935 // -- update state 936 subnet->key_refresh = MESH_KEY_REFRESH_SECOND_PHASE; 937 break; 938 default: 939 break; 940 } 941 } 942 } 943 944 // IV Update 945 946 int beacon_iv_update_active = flags & 2; 947 int local_iv_update_active = mesh_iv_update_active(); 948 uint32_t beacon_iv_index = big_endian_read_32(packet, 10); 949 uint32_t local_iv_index = mesh_get_iv_index(); 950 951 int32_t iv_index_delta = (int32_t)(beacon_iv_index - local_iv_index); 952 953 // "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 954 // the last known IV Index + 42, the Secure Network beacon shall be ignored." 955 if (iv_index_delta < 0 || iv_index_delta > 42){ 956 return; 957 } 958 959 // "If a node in Normal Operation receives a Secure Network beacon with an IV index equal to the last known IV index+1 and 960 // 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 961 // an IV Index Recovery procedure (Section 3.10.6), or it may ignore the Secure Network beacon. The node makes the choice depending 962 // 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."" 963 if (local_iv_update_active == 0 && beacon_iv_update_active == 0 && iv_index_delta == 1){ 964 // instant iv update 965 mesh_set_iv_index( beacon_iv_index ); 966 // store updated iv index 967 mesh_persist_iv_index_and_sequence_number(); 968 return; 969 } 970 971 // "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 972 // the last known IV Index of the primary subnet, the Secure Network beacon shall be ignored." 973 int member_of_primary_subnet = mesh_subnet_get_by_netkey_index(0) != NULL; 974 int beacon_on_secondary_subnet = subnet->netkey_index != 0; 975 if (member_of_primary_subnet && beacon_on_secondary_subnet && iv_index_delta > 0){ 976 return; 977 } 978 979 // "If a node in Normal Operation receives a Secure Network beacon with an IV index greater than the last known IV Index + 1..." 980 // "... it may initiate an IV Index Recovery procedure, see Section 3.10.6." 981 if (local_iv_update_active == 0 && iv_index_delta > 1){ 982 // "Upon receiving and successfully authenticating a Secure Network beacon for a primary subnet... " 983 int beacon_on_primary_subnet = subnet->netkey_index == 0; 984 if (!beacon_on_primary_subnet) return; 985 // "... whose IV Index is 1 or more higher than the current known IV Index, the node shall " 986 // " set its current IV Index and its current IV Update procedure state from the values in this Secure Network beacon." 987 mesh_iv_index_recovered(beacon_iv_update_active, beacon_iv_index); 988 // store updated iv index if in normal mode 989 if (beacon_iv_update_active == 0){ 990 mesh_persist_iv_index_and_sequence_number(); 991 } 992 return; 993 } 994 995 if (local_iv_update_active == 0){ 996 if (beacon_iv_update_active){ 997 mesh_trigger_iv_update(); 998 } 999 } else { 1000 if (beacon_iv_update_active == 0){ 1001 // " At the point of transition, the node shall reset the sequence number to 0x000000." 1002 mesh_sequence_number_set(0); 1003 mesh_iv_update_completed(); 1004 // store updated iv index 1005 mesh_persist_iv_index_and_sequence_number(); 1006 } 1007 } 1008 } 1009 1010 static const uint32_t mesh_tag_for_prov_data = ((uint32_t) 'P' << 24) | ((uint32_t) 'R' << 16) | ((uint32_t) 'O' << 8) | (uint32_t)'V'; 1011 1012 void mesh_node_reset(void){ 1013 // PROV 1014 btstack_tlv_singleton_impl->delete_tag(btstack_tlv_singleton_context, mesh_tag_for_prov_data); 1015 // everything else 1016 mesh_delete_network_keys(); 1017 mesh_delete_app_keys(); 1018 mesh_delete_appkey_lists(); 1019 mesh_delete_virtual_addresses(); 1020 mesh_delete_subscriptions(); 1021 mesh_delete_publications(); 1022 } 1023 1024 typedef struct { 1025 uint16_t unicast_address; 1026 uint8_t flags; 1027 uint8_t device_key[16]; 1028 1029 } mesh_persistent_provisioning_data_t; 1030 1031 static void mesh_node_store_provisioning_data(mesh_provisioning_data_t * provisioning_data){ 1032 1033 // fill persistent prov data 1034 mesh_persistent_provisioning_data_t persistent_provisioning_data; 1035 1036 persistent_provisioning_data.unicast_address = provisioning_data->unicast_address; 1037 persistent_provisioning_data.flags = provisioning_data->flags; 1038 (void)memcpy(persistent_provisioning_data.device_key, 1039 provisioning_data->device_key, 16); 1040 1041 // store in tlv 1042 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 1043 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)); 1044 report_store_error(result, "provisioning"); 1045 1046 // store IV Index and sequence number 1047 mesh_store_iv_index_and_sequence_number(provisioning_data->iv_index, 0); 1048 1049 // store primary network key 1050 mesh_store_network_key(provisioning_data->network_key); 1051 } 1052 1053 static void mesh_access_setup_unprovisioned_device(const uint8_t * device_uuid){ 1054 #ifdef ENABLE_MESH_PB_ADV 1055 // PB-ADV 1056 beacon_unprovisioned_device_start(device_uuid, 0); 1057 #else 1058 UNUSED(device_uuid);; 1059 #endif 1060 #ifdef ENABLE_MESH_PB_GATT 1061 mesh_proxy_start_advertising_unprovisioned_device(); 1062 #endif 1063 } 1064 1065 static void mesh_access_setup_without_provisiong_data_random(void * arg){ 1066 UNUSED(arg); 1067 // set random value 1068 mesh_node_set_device_uuid(random_device_uuid); 1069 mesh_access_setup_unprovisioned_device(random_device_uuid); 1070 } 1071 1072 static void mesh_access_setup_with_provisiong_data_random(void * arg){ 1073 UNUSED(arg); 1074 // set random value 1075 mesh_node_set_device_uuid(random_device_uuid); 1076 } 1077 1078 static int mesh_node_startup_from_tlv(void){ 1079 1080 mesh_persistent_provisioning_data_t persistent_provisioning_data; 1081 btstack_tlv_get_instance(&btstack_tlv_singleton_impl, &btstack_tlv_singleton_context); 1082 1083 // load provisioning data 1084 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)); 1085 printf("Provisioning data available: %u\n", prov_len ? 1 : 0); 1086 int prov_data_valid = prov_len == sizeof(mesh_persistent_provisioning_data_t); 1087 if (prov_data_valid){ 1088 1089 // copy into mesh_provisioning_data 1090 mesh_provisioning_data_t provisioning_data; 1091 (void)memcpy(provisioning_data.device_key, 1092 persistent_provisioning_data.device_key, 16); 1093 provisioning_data.unicast_address = persistent_provisioning_data.unicast_address; 1094 provisioning_data.flags = persistent_provisioning_data.flags; 1095 provisioning_data.network_key = NULL; 1096 printf("Provisioning Data: Flags %x, unicast_address %04x\n", persistent_provisioning_data.flags, provisioning_data.unicast_address); 1097 1098 // try load iv index and sequence number 1099 uint32_t iv_index = 0; 1100 uint32_t sequence_number = 0; 1101 (void) mesh_load_iv_index_and_sequence_number(&iv_index, &sequence_number); 1102 1103 // bump sequence number to account for interval updates 1104 sequence_number += MESH_SEQUENCE_NUMBER_STORAGE_INTERVAL; 1105 mesh_store_iv_index_and_sequence_number(iv_index, sequence_number); 1106 1107 mesh_set_iv_index(iv_index); 1108 mesh_sequence_number_set(sequence_number); 1109 provisioning_data.iv_index = iv_index; 1110 printf("IV Index: %08x, Sequence Number %08x\n", (int) iv_index, (int) sequence_number); 1111 1112 // setup iv update, node address, device key ... 1113 mesh_setup_from_provisioning_data(&provisioning_data); 1114 1115 // load network keys 1116 mesh_load_network_keys(); 1117 1118 // load app keys 1119 mesh_load_app_keys(); 1120 1121 // load foundation state 1122 mesh_foundation_state_load(); 1123 1124 // load model to appkey bindings 1125 mesh_load_appkey_lists(); 1126 1127 // load virtual addresses 1128 mesh_load_virtual_addresses(); 1129 1130 // load model subscriptions 1131 mesh_load_subscriptions(); 1132 1133 // load model publications 1134 mesh_load_publications(); 1135 1136 #if defined(ENABLE_MESH_ADV_BEARER) || defined(ENABLE_MESH_PB_ADV) 1137 // start sending Secure Network Beacon 1138 mesh_subnet_t * subnet = mesh_subnet_get_by_netkey_index(0); 1139 if (subnet){ 1140 beacon_secure_network_start(subnet); 1141 } 1142 #endif 1143 // create random uuid if not already set 1144 if (mesh_node_get_device_uuid() == NULL){ 1145 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_with_provisiong_data_random, NULL); 1146 } 1147 1148 // dump into packet log 1149 hci_dump_log(HCI_DUMP_LOG_LEVEL_INFO, "mesh-iv-index: %08x", iv_index); 1150 mesh_log_key("mesh-devkey", 0xffff, persistent_provisioning_data.device_key); 1151 1152 } else { 1153 1154 const uint8_t * device_uuid = mesh_node_get_device_uuid(); 1155 if (device_uuid){ 1156 mesh_access_setup_unprovisioned_device(device_uuid); 1157 } else{ 1158 btstack_crypto_random_generate(&mesh_access_crypto_random, random_device_uuid, 16, &mesh_access_setup_without_provisiong_data_random, NULL); 1159 } 1160 1161 } 1162 1163 return prov_data_valid; 1164 } 1165 1166 static void mesh_control_message_handler(mesh_pdu_t * pdu){ 1167 // get opcode 1168 uint8_t opcode = mesh_pdu_control_opcode(pdu); 1169 printf("Opcode: 0x%02x\n", opcode); 1170 1171 uint8_t init_ttl; 1172 uint8_t hops = 0; 1173 uint16_t features = 0; 1174 switch(opcode){ 1175 case 0x0a: 1176 // read params 1177 init_ttl = (*mesh_pdu_data(pdu)) & 0x7fu; 1178 features = big_endian_read_16(mesh_pdu_data(pdu), 1); 1179 // calculates hops 1180 hops = init_ttl - mesh_pdu_ttl(pdu) + 1; 1181 // process heartbeat info 1182 mesh_configuration_server_process_heartbeat(&mesh_configuration_server_model, mesh_pdu_src(pdu), mesh_pdu_dst(pdu), hops, features); 1183 break; 1184 default: 1185 break; 1186 } 1187 mesh_upper_transport_message_processed_by_higher_layer(pdu); 1188 } 1189 1190 static void mesh_node_setup_default_models(void){ 1191 // configure Config Server 1192 mesh_configuration_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_CONFIGURATION_SERVER); 1193 mesh_configuration_server_model.model_data = &mesh_configuration_server_model_context; 1194 mesh_configuration_server_model.operations = mesh_configuration_server_get_operations(); 1195 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_configuration_server_model); 1196 1197 // Config Health Server 1198 mesh_health_server_model.model_identifier = mesh_model_get_model_identifier_bluetooth_sig(MESH_SIG_MODEL_ID_HEALTH_SERVER); 1199 mesh_health_server_model.model_data = &mesh_health_server_model_context; 1200 mesh_health_server_model.operations = mesh_health_server_get_operations(); 1201 mesh_health_server_model.publication_model = &mesh_health_server_publication; 1202 mesh_element_add_model(mesh_node_get_primary_element(), &mesh_health_server_model); 1203 mesh_health_server_set_publication_model(&mesh_health_server_model, &mesh_health_server_publication); 1204 } 1205 1206 void mesh_init(void){ 1207 1208 // register for HCI events 1209 hci_event_callback_registration.callback = &hci_packet_handler; 1210 hci_add_event_handler(&hci_event_callback_registration); 1211 1212 // ADV Bearer also used for GATT Proxy Advertisements and PB-GATT 1213 adv_bearer_init(); 1214 1215 #ifdef ENABLE_MESH_GATT_BEARER 1216 // Setup GATT bearer 1217 gatt_bearer_init(); 1218 #endif 1219 1220 #ifdef ENABLE_MESH_ADV_BEARER 1221 // Setup Unprovisioned Device Beacon 1222 beacon_init(); 1223 #endif 1224 1225 provisioning_device_init(); 1226 provisioning_device_register_packet_handler(&mesh_provisioning_message_handler); 1227 1228 // Node Configuration 1229 mesh_node_init(); 1230 1231 // Network layer 1232 mesh_network_init(); 1233 1234 // Transport layers (lower + upper)) 1235 mesh_lower_transport_init(); 1236 mesh_upper_transport_init(); 1237 1238 // Access layer 1239 mesh_access_init(); 1240 1241 // Add mandatory models: Config Server and Health Server 1242 mesh_node_setup_default_models(); 1243 1244 // register for secure network beacons 1245 beacon_register_for_secure_network_beacons(&mesh_access_secure_network_beacon_handler); 1246 1247 // register for seq number updates 1248 mesh_sequence_number_set_update_callback(&mesh_persist_iv_index_and_sequence_number_if_needed); 1249 1250 // register for control messages 1251 mesh_upper_transport_register_control_message_handler(&mesh_control_message_handler); 1252 } 1253 1254 /** 1255 * Register for Mesh Provisioning Device events 1256 * @param packet_handler 1257 */ 1258 void mesh_register_provisioning_device_packet_handler(btstack_packet_handler_t packet_handler){ 1259 provisioning_device_packet_handler = packet_handler; 1260 } 1261