beacon.c (2fa98d7e52bbc58f1e999168903aa80914b17888) beacon.c (bdf219b2290515559e5dd7fd6ae2114cb15ebd69)
1/*
2 * Copyright (C) 2017 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

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139
140static void mesh_secure_network_beacon_setup(mesh_subnet_t * mesh_subnet){
141 mesh_beacon_data[0] = BEACON_TYPE_SECURE_NETWORK;
142 mesh_beacon_data[1] = mesh_secure_network_beacon_get_flags(mesh_subnet);
143 // TODO: pick correct key based on key refresh phase
144
145 memcpy(&mesh_beacon_data[2], mesh_subnet->old_key->network_id, 8);
146 big_endian_store_32(mesh_beacon_data, 10, mesh_get_iv_index());
1/*
2 * Copyright (C) 2017 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

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139
140static void mesh_secure_network_beacon_setup(mesh_subnet_t * mesh_subnet){
141 mesh_beacon_data[0] = BEACON_TYPE_SECURE_NETWORK;
142 mesh_beacon_data[1] = mesh_secure_network_beacon_get_flags(mesh_subnet);
143 // TODO: pick correct key based on key refresh phase
144
145 memcpy(&mesh_beacon_data[2], mesh_subnet->old_key->network_id, 8);
146 big_endian_store_32(mesh_beacon_data, 10, mesh_get_iv_index());
147 btstack_crypto_aes128_cmac_message(&mesh_secure_network_beacon_cmac_request, mesh_subnet->old_key->beacon_key, 13,
147 mesh_network_key_t * network_key = mesh_subnet_get_outgoing_network_key(mesh_subnet);
148 btstack_crypto_aes128_cmac_message(&mesh_secure_network_beacon_cmac_request, network_key->beacon_key, 13,
148 &mesh_beacon_data[1], mesh_secure_network_beacon_auth_value, &mesh_secure_network_beacon_auth_value_calculated, mesh_subnet);
149}
150
151static void mesh_secure_network_beacon_update_interval(mesh_subnet_t * subnet){
152 uint32_t min_observation_period_ms = 2 * subnet->beacon_interval_ms;
153 uint32_t actual_observation_period = btstack_time_delta(btstack_run_loop_get_time_ms(), subnet->beacon_observation_start_ms);
154
155 // The Observation Period in seconds should typically be double the typical Beacon Interval.

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290 if (new_flags == 0) return;
291
292 // validate beacon - if crytpo ready
293 if (mesh_secure_network_beacon_active) return;
294
295 mesh_secure_network_beacon_active = 1;
296 memcpy(mesh_secure_network_beacon_validate_buffer, &packet[0], SECURE_NETWORK_BEACON_LEN);
297
149 &mesh_beacon_data[1], mesh_secure_network_beacon_auth_value, &mesh_secure_network_beacon_auth_value_calculated, mesh_subnet);
150}
151
152static void mesh_secure_network_beacon_update_interval(mesh_subnet_t * subnet){
153 uint32_t min_observation_period_ms = 2 * subnet->beacon_interval_ms;
154 uint32_t actual_observation_period = btstack_time_delta(btstack_run_loop_get_time_ms(), subnet->beacon_observation_start_ms);
155
156 // The Observation Period in seconds should typically be double the typical Beacon Interval.

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291 if (new_flags == 0) return;
292
293 // validate beacon - if crytpo ready
294 if (mesh_secure_network_beacon_active) return;
295
296 mesh_secure_network_beacon_active = 1;
297 memcpy(mesh_secure_network_beacon_validate_buffer, &packet[0], SECURE_NETWORK_BEACON_LEN);
298
298 // TODO: handle odl/new keys
299 btstack_crypto_aes128_cmac_message(&mesh_secure_network_beacon_cmac_request, subnet->old_key->beacon_key, 13,
299 mesh_network_key_t * network_key = mesh_subnet_get_outgoing_network_key(mesh_subnet);
300 btstack_crypto_aes128_cmac_message(&mesh_secure_network_beacon_cmac_request, network_key->beacon_key, 13,
300 &mesh_secure_network_beacon_validate_buffer[1], mesh_secure_network_beacon_auth_value, &beacon_handle_secure_beacon_auth_value_calculated, subnet);
301}
302
303static void beacon_handle_beacon_packet(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
304 log_info("beacon type %u", packet[0]);
305 switch (packet[0]){
306 case BEACON_TYPE_UNPROVISIONED_DEVICE:
307 if (unprovisioned_device_beacon_handler){

--- 169 unchanged lines hidden --- 		301 &mesh_secure_network_beacon_validate_buffer[1], mesh_secure_network_beacon_auth_value, &beacon_handle_secure_beacon_auth_value_calculated, subnet);
302}
303
304static void beacon_handle_beacon_packet(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
305 log_info("beacon type %u", packet[0]);
306 switch (packet[0]){
307 case BEACON_TYPE_UNPROVISIONED_DEVICE:
308 if (unprovisioned_device_beacon_handler){

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