/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ #include "esp_log.h" #include "nvs_flash.h" /* BLE */ #include "nimble/nimble_port.h" #include "nimble/nimble_port_freertos.h" #include "host/ble_hs.h" #include "host/util/util.h" #include "console/console.h" #include "services/gap/ble_svc_gap.h" #include "blecent.h" #if MYNEWT_VAL(BLE_GATT_CACHING) #include "host/ble_esp_gattc_cache.h" #endif #if CONFIG_EXAMPLE_USE_CI_ADDRESS #ifdef CONFIG_IDF_TARGET_ESP32 #define TEST_CI_ADDRESS_CHIP_OFFSET (0) #elif CONFIG_IDF_TARGET_ESP32C2 #define TEST_CI_ADDRESS_CHIP_OFFSET (1) #elif CONFIG_IDF_TARGET_ESP32C3 #define TEST_CI_ADDRESS_CHIP_OFFSET (2) #elif CONFIG_IDF_TARGET_ESP32C6 #define TEST_CI_ADDRESS_CHIP_OFFSET (3) #elif CONFIG_IDF_TARGET_ESP32C5 #define TEST_CI_ADDRESS_CHIP_OFFSET (4) #elif CONFIG_IDF_TARGET_ESP32H2 #define TEST_CI_ADDRESS_CHIP_OFFSET (5) #elif CONFIG_IDF_TARGET_ESP32P4 #define TEST_CI_ADDRESS_CHIP_OFFSET (6) #elif CONFIG_IDF_TARGET_ESP32S3 #define TEST_CI_ADDRESS_CHIP_OFFSET (7) #elif CONFIG_IDF_TARGET_ESP32C61 #define TEST_CI_ADDRESS_CHIP_OFFSET (8) #endif #endif #if MYNEWT_VAL(BLE_GATTC) /*** The UUID of the service containing the subscribable characteristic ***/ static const ble_uuid_t * remote_svc_uuid = BLE_UUID128_DECLARE(0x2d, 0x71, 0xa2, 0x59, 0xb4, 0x58, 0xc8, 0x12, 0x99, 0x99, 0x43, 0x95, 0x12, 0x2f, 0x46, 0x59); /*** The UUID of the subscribable chatacteristic ***/ static const ble_uuid_t * remote_chr_uuid = BLE_UUID128_DECLARE(0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x22, 0x22, 0x22, 0x22, 0x33, 0x33, 0x33, 0x33); #endif static const char *tag = "NimBLE_BLE_CENT"; static int blecent_gap_event(struct ble_gap_event *event, void *arg); #if MYNEWT_VAL(BLE_EATT_CHAN_NUM) > 0 static uint16_t cids[MYNEWT_VAL(BLE_EATT_CHAN_NUM)]; static uint16_t bearers; #endif void ble_store_config_init(void); #if MYNEWT_VAL(BLE_GATTC) /** * Application Callback. Called when the custom subscribable chatacteristic * in the remote GATT server is read. * Expect to get the recently written data. **/ static int blecent_on_custom_read(uint16_t conn_handle, const struct ble_gatt_error *error, struct ble_gatt_attr *attr, void *arg) { MODLOG_DFLT(INFO, "Read complete for the subscribable characteristic; " "status=%d conn_handle=%d", error->status, conn_handle); if (error->status == 0) { MODLOG_DFLT(INFO, " attr_handle=%d value=", attr->handle); print_mbuf(attr->om); } MODLOG_DFLT(INFO, "\n"); return 0; } /** * Application Callback. Called when the custom subscribable characteristic * in the remote GATT server is written to. * Client has previously subscribed to this characeteristic, * so expect a notification from the server. **/ static int blecent_on_custom_write(uint16_t conn_handle, const struct ble_gatt_error *error, struct ble_gatt_attr *attr, void *arg) { const struct peer_chr *chr; const struct peer *peer; int rc; MODLOG_DFLT(INFO, "Write to the custom subscribable characteristic complete; " "status=%d conn_handle=%d attr_handle=%d\n", error->status, conn_handle, attr->handle); peer = peer_find(conn_handle); chr = peer_chr_find_uuid(peer, remote_svc_uuid, remote_chr_uuid); if (chr == NULL) { MODLOG_DFLT(ERROR, "Error: Peer doesn't have the custom subscribable characteristic\n"); goto err; } /*** Performs a read on the characteristic, the result is handled in blecent_on_new_read callback ***/ rc = ble_gattc_read(conn_handle, chr->chr.val_handle, blecent_on_custom_read, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error: Failed to read the custom subscribable characteristic; " "rc=%d\n", rc); goto err; } return 0; err: /* Terminate the connection */ return ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM); } /** * Application Callback. Called when the custom subscribable characteristic * is subscribed to. **/ static int blecent_on_custom_subscribe(uint16_t conn_handle, const struct ble_gatt_error *error, struct ble_gatt_attr *attr, void *arg) { const struct peer_chr *chr; uint8_t value; int rc; const struct peer *peer; MODLOG_DFLT(INFO, "Subscribe to the custom subscribable characteristic complete; " "status=%d conn_handle=%d", error->status, conn_handle); if (error->status == 0) { MODLOG_DFLT(INFO, " attr_handle=%d value=", attr->handle); print_mbuf(attr->om); } MODLOG_DFLT(INFO, "\n"); peer = peer_find(conn_handle); chr = peer_chr_find_uuid(peer, remote_svc_uuid, remote_chr_uuid); if (chr == NULL) { MODLOG_DFLT(ERROR, "Error: Peer doesn't have the subscribable characteristic\n"); goto err; } /* Write 1 byte to the new characteristic to test if it notifies after subscribing */ value = 0x19; rc = ble_gattc_write_flat(conn_handle, chr->chr.val_handle, &value, sizeof(value), blecent_on_custom_write, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error: Failed to write to the subscribable characteristic; " "rc=%d\n", rc); goto err; } return 0; err: /* Terminate the connection */ return ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM); } /** * Performs 3 operations on the remote GATT server. * 1. Subscribes to a characteristic by writing 0x10 to it's CCCD. * 2. Writes to the characteristic and expect a notification from remote. * 3. Reads the characteristic and expect to get the recently written information. **/ static void blecent_custom_gatt_operations(const struct peer* peer) { const struct peer_dsc *dsc; int rc; uint8_t value[2]; dsc = peer_dsc_find_uuid(peer, remote_svc_uuid, remote_chr_uuid, BLE_UUID16_DECLARE(BLE_GATT_DSC_CLT_CFG_UUID16)); if (dsc == NULL) { MODLOG_DFLT(ERROR, "Error: Peer lacks a CCCD for the subscribable characteristic\n"); goto err; } /*** Write 0x00 and 0x01 (The subscription code) to the CCCD ***/ value[0] = 1; value[1] = 0; rc = ble_gattc_write_flat(peer->conn_handle, dsc->dsc.handle, value, sizeof(value), blecent_on_custom_subscribe, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error: Failed to subscribe to the subscribable characteristic; " "rc=%d\n", rc); goto err; } return; err: /* Terminate the connection */ ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM); } /** * Application callback. Called when the attempt to subscribe to notifications * for the ANS Unread Alert Status characteristic has completed. */ static int blecent_on_subscribe(uint16_t conn_handle, const struct ble_gatt_error *error, struct ble_gatt_attr *attr, void *arg) { struct peer *peer; MODLOG_DFLT(INFO, "Subscribe complete; status=%d conn_handle=%d " "attr_handle=%d\n", error->status, conn_handle, attr->handle); peer = peer_find(conn_handle); if (peer == NULL) { MODLOG_DFLT(ERROR, "Error in finding peer, aborting..."); ble_gap_terminate(conn_handle, BLE_ERR_REM_USER_CONN_TERM); } /* Subscribe to, write to, and read the custom characteristic*/ blecent_custom_gatt_operations(peer); return 0; } /** * Application callback. Called when the write to the ANS Alert Notification * Control Point characteristic has completed. */ static int blecent_on_write(uint16_t conn_handle, const struct ble_gatt_error *error, struct ble_gatt_attr *attr, void *arg) { MODLOG_DFLT(INFO, "Write complete; status=%d conn_handle=%d attr_handle=%d\n", error->status, conn_handle, attr->handle); /* Subscribe to notifications for the Unread Alert Status characteristic. * A central enables notifications by writing two bytes (1, 0) to the * characteristic's client-characteristic-configuration-descriptor (CCCD). */ const struct peer_dsc *dsc; uint8_t value[2]; int rc; const struct peer *peer = peer_find(conn_handle); dsc = peer_dsc_find_uuid(peer, BLE_UUID16_DECLARE(BLECENT_SVC_ALERT_UUID), BLE_UUID16_DECLARE(BLECENT_CHR_UNR_ALERT_STAT_UUID), BLE_UUID16_DECLARE(BLE_GATT_DSC_CLT_CFG_UUID16)); if (dsc == NULL) { MODLOG_DFLT(ERROR, "Error: Peer lacks a CCCD for the Unread Alert " "Status characteristic\n"); goto err; } value[0] = 1; value[1] = 0; rc = ble_gattc_write_flat(conn_handle, dsc->dsc.handle, value, sizeof value, blecent_on_subscribe, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error: Failed to subscribe to characteristic; " "rc=%d\n", rc); goto err; } return 0; err: /* Terminate the connection. */ return ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM); } /** * Application callback. Called when the read of the ANS Supported New Alert * Category characteristic has completed. */ static int blecent_on_read(uint16_t conn_handle, const struct ble_gatt_error *error, struct ble_gatt_attr *attr, void *arg) { MODLOG_DFLT(INFO, "Read complete; status=%d conn_handle=%d", error->status, conn_handle); if (error->status == 0) { MODLOG_DFLT(INFO, " attr_handle=%d value=", attr->handle); print_mbuf(attr->om); } MODLOG_DFLT(INFO, "\n"); /* Write two bytes (99, 100) to the alert-notification-control-point * characteristic. */ const struct peer_chr *chr; uint8_t value[2]; int rc; const struct peer *peer = peer_find(conn_handle); chr = peer_chr_find_uuid(peer, BLE_UUID16_DECLARE(BLECENT_SVC_ALERT_UUID), BLE_UUID16_DECLARE(BLECENT_CHR_ALERT_NOT_CTRL_PT)); if (chr == NULL) { MODLOG_DFLT(ERROR, "Error: Peer doesn't support the Alert " "Notification Control Point characteristic\n"); goto err; } value[0] = 99; value[1] = 100; rc = ble_gattc_write_flat(conn_handle, chr->chr.val_handle, value, sizeof value, blecent_on_write, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error: Failed to write characteristic; rc=%d\n", rc); goto err; } return 0; err: /* Terminate the connection. */ return ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM); } /** * Performs three GATT operations against the specified peer: * 1. Reads the ANS Supported New Alert Category characteristic. * 2. After read is completed, writes the ANS Alert Notification Control Point characteristic. * 3. After write is completed, subscribes to notifications for the ANS Unread Alert Status * characteristic. * * If the peer does not support a required service, characteristic, or * descriptor, then the peer lied when it claimed support for the alert * notification service! When this happens, or if a GATT procedure fails, * this function immediately terminates the connection. */ static void blecent_read_write_subscribe(const struct peer *peer) { const struct peer_chr *chr; int rc; /* Read the supported-new-alert-category characteristic. */ chr = peer_chr_find_uuid(peer, BLE_UUID16_DECLARE(BLECENT_SVC_ALERT_UUID), BLE_UUID16_DECLARE(BLECENT_CHR_SUP_NEW_ALERT_CAT_UUID)); if (chr == NULL) { MODLOG_DFLT(ERROR, "Error: Peer doesn't support the Supported New " "Alert Category characteristic\n"); goto err; } rc = ble_gattc_read(peer->conn_handle, chr->chr.val_handle, blecent_on_read, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error: Failed to read characteristic; rc=%d\n", rc); goto err; } return; err: /* Terminate the connection. */ ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM); } /** * Called when service discovery of the specified peer has completed. */ static void blecent_on_disc_complete(const struct peer *peer, int status, void *arg) { if (status != 0) { /* Service discovery failed. Terminate the connection. */ MODLOG_DFLT(ERROR, "Error: Service discovery failed; status=%d " "conn_handle=%d\n", status, peer->conn_handle); ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM); return; } /* Service discovery has completed successfully. Now we have a complete * list of services, characteristics, and descriptors that the peer * supports. */ MODLOG_DFLT(INFO, "Service discovery complete; status=%d " "conn_handle=%d\n", status, peer->conn_handle); /* Now perform three GATT procedures against the peer: read, * write, and subscribe to notifications for the ANS service. */ blecent_read_write_subscribe(peer); } #endif //MYNEWT_VAL(BLE_GATTC) /** * Initiates the GAP general discovery procedure. */ static void blecent_scan(void) { uint8_t own_addr_type; struct ble_gap_disc_params disc_params = {0}; int rc; /* Figure out address to use while advertising (no privacy for now) */ rc = ble_hs_id_infer_auto(0, &own_addr_type); if (rc != 0) { MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc); return; } /* Tell the controller to filter duplicates; we don't want to process * repeated advertisements from the same device. */ disc_params.filter_duplicates = 1; /** * Perform a passive scan. I.e., don't send follow-up scan requests to * each advertiser. */ disc_params.passive = 1; /* Use defaults for the rest of the parameters. */ disc_params.itvl = 0; disc_params.window = 0; disc_params.filter_policy = 0; disc_params.limited = 0; rc = ble_gap_disc(own_addr_type, BLE_HS_FOREVER, &disc_params, blecent_gap_event, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error initiating GAP discovery procedure; rc=%d\n", rc); } } /** * Indicates whether we should try to connect to the sender of the specified * advertisement. The function returns a positive result if the device * advertises connectability and support for the Alert Notification service. */ #if CONFIG_EXAMPLE_EXTENDED_ADV static int ext_blecent_should_connect(const struct ble_gap_ext_disc_desc *disc) { int offset = 0; int ad_struct_len = 0; #if CONFIG_EXAMPLE_USE_CI_ADDRESS uint32_t *addr_offset; #endif // CONFIG_EXAMPLE_USE_CI_ADDRESS uint8_t test_addr[6]; uint32_t peer_addr[6]; memset(peer_addr, 0x0, sizeof peer_addr); if (disc->legacy_event_type != BLE_HCI_ADV_RPT_EVTYPE_ADV_IND && disc->legacy_event_type != BLE_HCI_ADV_RPT_EVTYPE_DIR_IND) { return 0; } if (strlen(CONFIG_EXAMPLE_PEER_ADDR) && (strncmp(CONFIG_EXAMPLE_PEER_ADDR, "ADDR_ANY", strlen ("ADDR_ANY")) != 0)) { #if !CONFIG_EXAMPLE_USE_CI_ADDRESS ESP_LOGI(tag, "Peer address from menuconfig: %s", CONFIG_EXAMPLE_PEER_ADDR); /* Convert string to address */ sscanf(CONFIG_EXAMPLE_PEER_ADDR, "%lx:%lx:%lx:%lx:%lx:%lx", &peer_addr[5], &peer_addr[4], &peer_addr[3], &peer_addr[2], &peer_addr[1], &peer_addr[0]); #endif /* Conversion */ for(int i=0; i<6; i++) { test_addr[i] = (uint8_t )peer_addr[i]; } #if CONFIG_EXAMPLE_USE_CI_ADDRESS addr_offset = (uint32_t *)&test_addr[1]; *addr_offset = atoi(CONFIG_EXAMPLE_PEER_ADDR); test_addr[5] = 0xC3; test_addr[0] = TEST_CI_ADDRESS_CHIP_OFFSET; #endif if (memcmp(test_addr, disc->addr.val, sizeof(disc->addr.val)) != 0) { return 0; } } /* The device has to advertise support for the Alert Notification * service (0x1811). */ do { ad_struct_len = disc->data[offset]; if (!ad_struct_len) { break; } /* Search if ANS UUID is advertised */ if (disc->data[offset] == 0x03 && disc->data[offset + 1] == 0x03) { if ( disc->data[offset + 2] == 0x18 && disc->data[offset + 3] == 0x11 ) { return 1; } } offset += ad_struct_len + 1; } while ( offset < disc->length_data ); return 0; } #else static int blecent_should_connect(const struct ble_gap_disc_desc *disc) { struct ble_hs_adv_fields fields; int rc; int i; #if CONFIG_EXAMPLE_USE_CI_ADDRESS uint32_t *addr_offset; #endif // CONFIG_EXAMPLE_USE_CI_ADDRESS uint8_t test_addr[6]; uint32_t peer_addr[6]; memset(peer_addr, 0x0, sizeof peer_addr); /* The device has to be advertising connectability. */ if (disc->event_type != BLE_HCI_ADV_RPT_EVTYPE_ADV_IND && disc->event_type != BLE_HCI_ADV_RPT_EVTYPE_DIR_IND) { return 0; } rc = ble_hs_adv_parse_fields(&fields, disc->data, disc->length_data); if (rc != 0) { return 0; } if (strlen(CONFIG_EXAMPLE_PEER_ADDR) && (strncmp(CONFIG_EXAMPLE_PEER_ADDR, "ADDR_ANY", strlen("ADDR_ANY")) != 0)) { ESP_LOGI(tag, "Peer address from menuconfig: %s", CONFIG_EXAMPLE_PEER_ADDR); #if !CONFIG_EXAMPLE_USE_CI_ADDRESS /* Convert string to address */ sscanf(CONFIG_EXAMPLE_PEER_ADDR, "%lx:%lx:%lx:%lx:%lx:%lx", &peer_addr[5], &peer_addr[4], &peer_addr[3], &peer_addr[2], &peer_addr[1], &peer_addr[0]); printf("peer--> %lx %lx %lx %lx %lx %lx \n", peer_addr[5], peer_addr[4], peer_addr[3], peer_addr[2], peer_addr[1], peer_addr[0]); #endif /* Conversion */ for (int i=0; i<6; i++) { test_addr[i] = (uint8_t )peer_addr[i]; } #if CONFIG_EXAMPLE_USE_CI_ADDRESS addr_offset = (uint32_t *)&test_addr[1]; *addr_offset = atoi(CONFIG_EXAMPLE_PEER_ADDR); test_addr[5] = 0xC3; test_addr[0] = TEST_CI_ADDRESS_CHIP_OFFSET; #endif if (memcmp(test_addr, disc->addr.val, sizeof(disc->addr.val)) != 0) { return 0; } } /* The device has to advertise support for the Alert Notification * service (0x1811). */ for (i = 0; i < fields.num_uuids16; i++) { if (ble_uuid_u16(&fields.uuids16[i].u) == BLECENT_SVC_ALERT_UUID) { return 1; } } return 0; } #endif /** * Connects to the sender of the specified advertisement of it looks * interesting. A device is "interesting" if it advertises connectability and * support for the Alert Notification service. */ static void blecent_connect_if_interesting(void *disc) { uint8_t own_addr_type; int rc; ble_addr_t *addr; /* Don't do anything if we don't care about this advertiser. */ #if CONFIG_EXAMPLE_EXTENDED_ADV if (!ext_blecent_should_connect((struct ble_gap_ext_disc_desc *)disc)) { return; } #else if (!blecent_should_connect((struct ble_gap_disc_desc *)disc)) { return; } #endif #if !(MYNEWT_VAL(BLE_HOST_ALLOW_CONNECT_WITH_SCAN)) /* Scanning must be stopped before a connection can be initiated. */ rc = ble_gap_disc_cancel(); if (rc != 0) { MODLOG_DFLT(DEBUG, "Failed to cancel scan; rc=%d\n", rc); return; } #endif /* Figure out address to use for connect (no privacy for now) */ rc = ble_hs_id_infer_auto(0, &own_addr_type); if (rc != 0) { MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc); return; } /* Try to connect the the advertiser. Allow 30 seconds (30000 ms) for * timeout. */ #if CONFIG_EXAMPLE_EXTENDED_ADV addr = &((struct ble_gap_ext_disc_desc *)disc)->addr; #else addr = &((struct ble_gap_disc_desc *)disc)->addr; #endif rc = ble_gap_connect(own_addr_type, addr, 30000, NULL, blecent_gap_event, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Error: Failed to connect to device; addr_type=%d " "addr=%s; rc=%d\n", addr->type, addr_str(addr->val), rc); return; } } #if MYNEWT_VAL(BLE_POWER_CONTROL) static void blecent_power_control(uint16_t conn_handle) { int rc; rc = ble_gap_read_remote_transmit_power_level(conn_handle, 0x01 ); // Attempting on LE 1M phy assert (rc == 0); rc = ble_gap_set_transmit_power_reporting_enable(conn_handle, 0x01, 0x01); assert (rc == 0); rc = ble_gap_set_path_loss_reporting_param(conn_handle, 60, 10, 30, 10, 2 ); //demo values assert (rc == 0); rc = ble_gap_set_path_loss_reporting_enable(conn_handle, 0x01); assert (rc == 0); } #endif /** * The nimble host executes this callback when a GAP event occurs. The * application associates a GAP event callback with each connection that is * established. blecent uses the same callback for all connections. * * @param event The event being signalled. * @param arg Application-specified argument; unused by * blecent. * * @return 0 if the application successfully handled the * event; nonzero on failure. The semantics * of the return code is specific to the * particular GAP event being signalled. */ static int blecent_gap_event(struct ble_gap_event *event, void *arg) { #if NIMBLE_BLE_CONNECT struct ble_gap_conn_desc desc; #endif struct ble_hs_adv_fields fields; #if MYNEWT_VAL(BLE_HCI_VS) #if MYNEWT_VAL(BLE_POWER_CONTROL) struct ble_gap_set_auto_pcl_params params; #endif #endif int rc; switch (event->type) { case BLE_GAP_EVENT_DISC: rc = ble_hs_adv_parse_fields(&fields, event->disc.data, event->disc.length_data); if (rc != 0) { return 0; } /* An advertisement report was received during GAP discovery. */ print_adv_fields(&fields); /* Try to connect to the advertiser if it looks interesting. */ blecent_connect_if_interesting(&event->disc); return 0; #if NIMBLE_BLE_CONNECT case BLE_GAP_EVENT_CONNECT: /* A new connection was established or a connection attempt failed. */ if (event->connect.status == 0) { /* Connection successfully established. */ MODLOG_DFLT(INFO, "Connection established "); rc = ble_gap_conn_find(event->connect.conn_handle, &desc); assert(rc == 0); print_conn_desc(&desc); MODLOG_DFLT(INFO, "\n"); /* Remember peer. */ rc = peer_add(event->connect.conn_handle); if (rc != 0) { MODLOG_DFLT(ERROR, "Failed to add peer; rc=%d\n", rc); return 0; } #if MYNEWT_VAL(BLE_POWER_CONTROL) blecent_power_control(event->connect.conn_handle); #endif #if MYNEWT_VAL(BLE_HCI_VS) #if MYNEWT_VAL(BLE_POWER_CONTROL) memset(¶ms, 0x0, sizeof(struct ble_gap_set_auto_pcl_params)); params.conn_handle = event->connect.conn_handle; rc = ble_gap_set_auto_pcl_param(¶ms); if (rc != 0) { MODLOG_DFLT(INFO, "Failed to send VSC %x \n", rc); return 0; } else { MODLOG_DFLT(INFO, "Successfully issued VSC , rc = %d \n", rc); } #endif #endif #if CONFIG_EXAMPLE_ENCRYPTION /** Initiate security - It will perform * Pairing (Exchange keys) * Bonding (Store keys) * Encryption (Enable encryption) * Will invoke event BLE_GAP_EVENT_ENC_CHANGE **/ rc = ble_gap_security_initiate(event->connect.conn_handle); if (rc != 0) { MODLOG_DFLT(INFO, "Security could not be initiated, rc = %d\n", rc); return ble_gap_terminate(event->connect.conn_handle, BLE_ERR_REM_USER_CONN_TERM); } else { MODLOG_DFLT(INFO, "Connection secured\n"); } #else #if MYNEWT_VAL(BLE_GATTC) #if MYNEWT_VAL(BLE_GATT_CACHING_ASSOC_ENABLE) rc = ble_gattc_cache_assoc(desc.peer_id_addr); if (rc != 0) { MODLOG_DFLT(ERROR, "Cache Association Failed; rc=%d\n", rc); return 0; } #else /* Perform service discovery */ rc = peer_disc_all(event->connect.conn_handle, blecent_on_disc_complete, NULL); if(rc != 0) { MODLOG_DFLT(ERROR, "Failed to discover services; rc=%d\n", rc); return 0; } #endif // BLE_GATT_CACHING_ASSOC_ENABLE #endif // BLE_GATTC #endif // EXAMPLE_ENCRYPTION } else { /* Connection attempt failed; resume scanning. */ MODLOG_DFLT(ERROR, "Error: Connection failed; status=%d\n", event->connect.status); blecent_scan(); } return 0; case BLE_GAP_EVENT_DISCONNECT: /* Connection terminated. */ MODLOG_DFLT(INFO, "disconnect; reason=%d ", event->disconnect.reason); print_conn_desc(&event->disconnect.conn); MODLOG_DFLT(INFO, "\n"); /* Forget about peer. */ peer_delete(event->disconnect.conn.conn_handle); #if MYNEWT_VAL(BLE_EATT_CHAN_NUM) > 0 /* Reset EATT config */ bearers = 0; for (int i = 0; i < MYNEWT_VAL(BLE_EATT_CHAN_NUM); i++) { cids[i] = 0; } #endif /* Resume scanning. */ blecent_scan(); return 0; case BLE_GAP_EVENT_DISC_COMPLETE: MODLOG_DFLT(INFO, "discovery complete; reason=%d\n", event->disc_complete.reason); return 0; case BLE_GAP_EVENT_ENC_CHANGE: /* Encryption has been enabled or disabled for this connection. */ MODLOG_DFLT(INFO, "encryption change event; status=%d ", event->enc_change.status); rc = ble_gap_conn_find(event->enc_change.conn_handle, &desc); assert(rc == 0); print_conn_desc(&desc); #if !MYNEWT_VAL(BLE_EATT_CHAN_NUM) #if CONFIG_EXAMPLE_ENCRYPTION && MYNEWT_VAL(BLE_GATTC) #if MYNEWT_VAL(BLE_GATT_CACHING_ASSOC_ENABLE) rc = ble_gattc_cache_assoc(desc.peer_id_addr); if (rc != 0) { MODLOG_DFLT(ERROR, "Cache Association Failed; rc=%d\n", rc); return 0; } #else /*** Go for service discovery after encryption has been successfully enabled ***/ rc = peer_disc_all(event->enc_change.conn_handle, blecent_on_disc_complete, NULL); if (rc != 0) { MODLOG_DFLT(ERROR, "Failed to discover services; rc=%d\n", rc); return 0; } #endif // BLE_GATT_CACHING_ASSOC_ENABLE #endif // EXAMPLE_ENCRYPTION #endif return 0; case BLE_GAP_EVENT_CACHE_ASSOC: #if MYNEWT_VAL(BLE_GATT_CACHING_ASSOC_ENABLE) /* Cache association result for this connection */ MODLOG_DFLT(INFO, "cache association; conn_handle=%d status=%d cache_state=%s\n", event->cache_assoc.conn_handle, event->cache_assoc.status, (event->cache_assoc.cache_state == 0) ? "INVALID" : "LOADED"); /* Perform service discovery */ rc = peer_disc_all(event->connect.conn_handle, blecent_on_disc_complete, NULL); if(rc != 0) { MODLOG_DFLT(ERROR, "Failed to discover services; rc=%d\n", rc); return 0; } #endif return 0; case BLE_GAP_EVENT_NOTIFY_RX: /* Peer sent us a notification or indication. */ MODLOG_DFLT(INFO, "received %s; conn_handle=%d attr_handle=%d " "attr_len=%d\n", event->notify_rx.indication ? "indication" : "notification", event->notify_rx.conn_handle, event->notify_rx.attr_handle, OS_MBUF_PKTLEN(event->notify_rx.om)); /* Attribute data is contained in event->notify_rx.om. Use * `os_mbuf_copydata` to copy the data received in notification mbuf */ return 0; case BLE_GAP_EVENT_MTU: MODLOG_DFLT(INFO, "mtu update event; conn_handle=%d cid=%d mtu=%d\n", event->mtu.conn_handle, event->mtu.channel_id, event->mtu.value); return 0; case BLE_GAP_EVENT_REPEAT_PAIRING: /* We already have a bond with the peer, but it is attempting to * establish a new secure link. This app sacrifices security for * convenience: just throw away the old bond and accept the new link. */ /* Delete the old bond. */ rc = ble_gap_conn_find(event->repeat_pairing.conn_handle, &desc); assert(rc == 0); ble_store_util_delete_peer(&desc.peer_id_addr); /* Return BLE_GAP_REPEAT_PAIRING_RETRY to indicate that the host should * continue with the pairing operation. */ return BLE_GAP_REPEAT_PAIRING_RETRY; #if CONFIG_EXAMPLE_EXTENDED_ADV case BLE_GAP_EVENT_EXT_DISC: /* An advertisement report was received during GAP discovery. */ ext_print_adv_report(&event->ext_disc); blecent_connect_if_interesting(&event->ext_disc); return 0; #endif #if MYNEWT_VAL(BLE_POWER_CONTROL) case BLE_GAP_EVENT_TRANSMIT_POWER: MODLOG_DFLT(INFO, "Transmit power event : status=%d conn_handle=%d reason=%d " "phy=%d power_level=%d power_level_flag=%d delta=%d", event->transmit_power.status, event->transmit_power.conn_handle, event->transmit_power.reason, event->transmit_power.phy, event->transmit_power.transmit_power_level, event->transmit_power.transmit_power_level_flag, event->transmit_power.delta); return 0; case BLE_GAP_EVENT_PATHLOSS_THRESHOLD: MODLOG_DFLT(INFO, "Pathloss threshold event : conn_handle=%d current path loss=%d " "zone_entered =%d", event->pathloss_threshold.conn_handle, event->pathloss_threshold.current_path_loss, event->pathloss_threshold.zone_entered); return 0; #endif #if MYNEWT_VAL(BLE_EATT_CHAN_NUM) > 0 case BLE_GAP_EVENT_EATT: int i; MODLOG_DFLT(INFO, "EATT %s : conn_handle=%d cid=%d", event->eatt.status ? "disconnected" : "connected", event->eatt.conn_handle, event->eatt.cid); if (event->eatt.status) { /* Remove CID from the list of saved CIDs */ for (i = 0; i < bearers; i++) { if (cids[i] == event->eatt.cid) { break; } } while (i < (bearers - 1)) { cids[i] = cids[i + 1]; i += 1; } cids[i] = 0; /* Now Abort */ return 0; } cids[bearers] = event->eatt.cid; bearers += 1; if (bearers != MYNEWT_VAL(BLE_EATT_CHAN_NUM)) { /* Wait until all EATT bearers are connected before proceeding */ return 0; } /* Set the default bearer to use for further procedures */ rc = ble_att_set_default_bearer_using_cid(event->eatt.conn_handle, cids[0]); if (rc != 0) { MODLOG_DFLT(INFO, "Cannot set default EATT bearer, rc = %d\n", rc); return rc; } #if MYNEWT_VAL(BLE_GATTC) /* Perform service discovery */ rc = peer_disc_all(event->eatt.conn_handle, blecent_on_disc_complete, NULL); if(rc != 0) { MODLOG_DFLT(ERROR, "Failed to discover services; rc=%d\n", rc); return 0; } #endif #endif return 0; #endif default: return 0; } } static void blecent_on_reset(int reason) { MODLOG_DFLT(ERROR, "Resetting state; reason=%d\n", reason); } static void blecent_on_sync(void) { int rc; /* Make sure we have proper identity address set (public preferred) */ rc = ble_hs_util_ensure_addr(0); assert(rc == 0); #if !CONFIG_EXAMPLE_INIT_DEINIT_LOOP /* Begin scanning for a peripheral to connect to. */ blecent_scan(); #endif } void blecent_host_task(void *param) { ESP_LOGI(tag, "BLE Host Task Started"); /* This function will return only when nimble_port_stop() is executed */ nimble_port_run(); nimble_port_freertos_deinit(); } #if CONFIG_EXAMPLE_INIT_DEINIT_LOOP /* This function showcases stack init and deinit procedure. */ static void stack_init_deinit(void) { int rc; while(1) { vTaskDelay(1000); ESP_LOGI(tag, "Deinit host"); rc = nimble_port_stop(); if (rc == 0) { nimble_port_deinit(); } else { ESP_LOGI(tag, "Nimble port stop failed, rc = %d", rc); break; } vTaskDelay(1000); ESP_LOGI(tag, "Init host"); rc = nimble_port_init(); if (rc != ESP_OK) { ESP_LOGI(tag, "Failed to init nimble %d ", rc); break; } nimble_port_freertos_init(blecent_host_task); ESP_LOGI(tag, "Waiting for 1 second"); } } #endif void app_main(void) { /* Initialize NVS — it is used to store PHY calibration data */ esp_err_t ret = nvs_flash_init(); if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) { ESP_ERROR_CHECK(nvs_flash_erase()); ret = nvs_flash_init(); } ESP_ERROR_CHECK(ret); ret = nimble_port_init(); if (ret != ESP_OK) { ESP_LOGE(tag, "Failed to init nimble %d ", ret); return; } /* Configure the host. */ ble_hs_cfg.reset_cb = blecent_on_reset; ble_hs_cfg.sync_cb = blecent_on_sync; ble_hs_cfg.store_status_cb = ble_store_util_status_rr; #if NIMBLE_BLE_CONNECT int rc; /* Initialize data structures to track connected peers. */ #if MYNEWT_VAL(BLE_INCL_SVC_DISCOVERY) || MYNEWT_VAL(BLE_GATT_CACHING_INCLUDE_SERVICES) rc = peer_init(MYNEWT_VAL(BLE_MAX_CONNECTIONS), 64, 64, 64, 64); assert(rc == 0); #else rc = peer_init(MYNEWT_VAL(BLE_MAX_CONNECTIONS), 64, 64, 64); assert(rc == 0); #endif #endif #if CONFIG_BT_NIMBLE_GAP_SERVICE int m; /* Set the default device name. */ m = ble_svc_gap_device_name_set("nimble-blecent"); assert(m == 0); #endif /* XXX Need to have template for store */ ble_store_config_init(); nimble_port_freertos_init(blecent_host_task); #if CONFIG_EXAMPLE_INIT_DEINIT_LOOP stack_init_deinit(); #endif #if MYNEWT_VAL(BLE_EATT_CHAN_NUM) > 0 bearers = 0; for (int i = 0; i < MYNEWT_VAL(BLE_EATT_CHAN_NUM); i++) { cids[i] = 0; } #endif }