/* * Copyright (C) 2014 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at * contact@bluekitchen-gmbh.com * */ #define __BTSTACK_FILE__ "sm_pairing_peripheral.c" // ***************************************************************************** /* EXAMPLE_START(sm_pairing_peripheral): LE Peripheral - Test pairing combinations * * @text Depending on the Authentication requiremens and IO Capabilities, * the pairing process uses different short and long term key generation method. * This example helps explore the different options incl. LE Secure Connections. */ // ***************************************************************************** #include #include #include #include #include "sm_pairing_peripheral.h" #include "btstack.h" /* @section Main Application Setup * * @text Listing MainConfiguration shows main application code. * It initializes L2CAP, the Security Manager and configures the ATT Server with the pre-compiled * ATT Database generated from $sm_pairing_peripheral.gatt$. Finally, it configures the advertisements * and boots the Bluetooth stack. * In this example, the Advertisement contains the Flags attribute and the device name. * The flag 0x06 indicates: LE General Discoverable Mode and BR/EDR not supported. * Various examples for IO Capabilites and Authentication Requirements are given below. */ /* LISTING_START(MainConfiguration): Init L2CAP SM ATT Server and start heartbeat timer */ static btstack_packet_callback_registration_t hci_event_callback_registration; static btstack_packet_callback_registration_t sm_event_callback_registration; // static hci_con_handle_t con_handle; static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); const uint8_t adv_data[] = { // Flags general discoverable, BR/EDR not supported 0x02, 0x01, 0x06, // Name 0x0b, 0x09, 'S', 'M', ' ', 'P', 'a', 'i', 'r', 'i', 'n', 'g', }; const uint8_t adv_data_len = sizeof(adv_data); static void sm_peripheral_setup(void){ // register for HCI events hci_event_callback_registration.callback = &packet_handler; hci_add_event_handler(&hci_event_callback_registration); l2cap_init(); // setup le device db le_device_db_init(); // setup SM: Display only sm_init(); sm_event_callback_registration.callback = &packet_handler; sm_add_event_handler(&sm_event_callback_registration); /** * Choose ONE of the following configurations */ // LE Legacy Pairing, Just Works sm_set_io_capabilities(IO_CAPABILITY_NO_INPUT_NO_OUTPUT); sm_set_authentication_requirements(0); // LE Legacy Pairing, Passkey entry initiator enter, responder (us) displays // sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_ONLY); // sm_set_authentication_requirements(SM_AUTHREQ_MITM_PROTECTION); #ifdef ENABLE_LE_SECURE_CONNECTIONS // LE Secure Connetions, Just Works // sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_YES_NO); // sm_set_authentication_requirements(SM_AUTHREQ_SECURE_CONNECTION); // LE Secure Connections, Numeric Comparison // sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_YES_NO); // sm_set_authentication_requirements(SM_AUTHREQ_SECURE_CONNECTION|SM_AUTHREQ_MITM_PROTECTION); // LE Legacy Pairing, Passkey entry initiator enter, responder (us) displays // sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_ONLY); // sm_set_authentication_requirements(SM_AUTHREQ_SECURE_CONNECTION|SM_AUTHREQ_MITM_PROTECTION); #endif // setup ATT server att_server_init(profile_data, NULL, NULL); att_server_register_packet_handler(packet_handler); // setup advertisements uint16_t adv_int_min = 0x0030; uint16_t adv_int_max = 0x0030; uint8_t adv_type = 0; bd_addr_t null_addr; memset(null_addr, 0, 6); gap_advertisements_set_params(adv_int_min, adv_int_max, adv_type, 0, null_addr, 0x07, 0x00); gap_advertisements_set_data(adv_data_len, (uint8_t*) adv_data); gap_advertisements_enable(1); } /* LISTING_END */ /* * @section Packet Handler * * @text The packet handler is used to: * - stop the counter after a disconnect * - send a notification when the requested ATT_EVENT_CAN_SEND_NOW is received */ /* LISTING_START(packetHandler): Packet Handler */ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ UNUSED(channel); UNUSED(size); bd_addr_t addr; switch (packet_type) { case HCI_EVENT_PACKET: switch (hci_event_packet_get_type(packet)) { case SM_EVENT_JUST_WORKS_REQUEST: printf("Just Works requested\n"); sm_just_works_confirm(sm_event_just_works_request_get_handle(packet)); break; case SM_EVENT_NUMERIC_COMPARISON_REQUEST: printf("Confirming numeric comparison: %u\n", sm_event_numeric_comparison_request_get_passkey(packet)); sm_numeric_comparison_confirm(sm_event_passkey_display_number_get_handle(packet)); break; case SM_EVENT_PASSKEY_DISPLAY_NUMBER: printf("Display Passkey: %u\n", sm_event_passkey_display_number_get_passkey(packet)); break; case SM_EVENT_IDENTITY_CREATED: sm_event_identity_created_get_identity_address(packet, addr); printf("Identity created: type %u address %s\n", sm_event_identity_created_get_identity_addr_type(packet), bd_addr_to_str(addr)); break; case SM_EVENT_IDENTITY_RESOLVING_SUCCEEDED: sm_event_identity_resolving_succeeded_get_identity_address(packet, addr); printf("Identity resolved: type %u address %s\n", sm_event_identity_resolving_succeeded_get_identity_addr_type(packet), bd_addr_to_str(addr)); break; case SM_EVENT_IDENTITY_RESOLVING_FAILED: sm_event_identity_created_get_address(packet, addr); printf("Identity resolving failed\n"); break; } break; } } /* LISTING_END */ int btstack_main(void); int btstack_main(void) { sm_peripheral_setup(); // turn on! hci_power_control(HCI_POWER_ON); return 0; } /* EXAMPLE_END */