void l2cap_register_service_internal(void *connection, btstack_packet_handler_t packet_handler, uint16_t psm, uint16_t mtu){
// check for alread registered psm
// TODO: emit error event
l2cap_service_t *service = l2cap_get_service(psm);
if (service) {
log_error("l2cap_register_service_internal: PSM %u already registered\n", psm);
l2cap_emit_service_registered(connection, L2CAP_SERVICE_ALREADY_REGISTERED, psm);
return;
}
// alloc structure
// TODO: emit error event
service = (l2cap_service_t *) btstack_memory_l2cap_service_get();
if (!service) {
log_error("l2cap_register_service_internal: no memory for l2cap_service_t\n");
l2cap_emit_service_registered(connection, BTSTACK_MEMORY_ALLOC_FAILED, psm);
return;
}
// fill in
service->psm = psm;
service->mtu = mtu;
service->connection = connection;
service->packet_handler = packet_handler;
// add to services list
linked_list_add(&l2cap_services, (linked_item_t *) service);
// enable page scan
hci_connectable_control(1);
// done
l2cap_emit_service_registered(connection, 0, psm);
}
void l2cap_unregister_service_internal(void *connection, uint16_t psm){
l2cap_service_t *service = l2cap_get_service(psm);
if (!service) return;
linked_list_remove(&l2cap_services, (linked_item_t *) service);
btstack_memory_l2cap_service_free(service);
// disable page scan when no services registered
if (!linked_list_empty(&l2cap_services)) return;
hci_connectable_control(0);
}
int btstack_main(int argc, const char * argv[]){
printf("Starting up..\n");
hci_set_class_of_device(0x200404);
hci_disable_l2cap_timeout_check();
hci_ssp_set_io_capability(IO_CAPABILITY_NO_INPUT_NO_OUTPUT);
gap_io_capabilities = "IO_CAPABILITY_NO_INPUT_NO_OUTPUT";
hci_ssp_set_authentication_requirement(0);
hci_ssp_set_auto_accept(0);
// gap_set_bondable_mode(0);
l2cap_init();
l2cap_register_packet_handler(&packet_handler2);
l2cap_register_fixed_channel(&packet_handler, L2CAP_CID_CONNECTIONLESS_CHANNEL);
rfcomm_init();
rfcomm_register_packet_handler(packet_handler2);
rfcomm_register_service_internal(NULL, RFCOMM_SERVER_CHANNEL, 150); // reserved channel, mtu=100
// init SDP, create record for SPP and register with SDP
sdp_init();
memset(spp_service_buffer, 0, sizeof(spp_service_buffer));
sdp_create_spp_service((uint8_t*) spp_service_buffer, RFCOMM_SERVER_CHANNEL, "SPP Counter");
de_dump_data_element((uint8_t*) spp_service_buffer);
printf("SDP service record size: %u\n\r", de_get_len((uint8_t*)spp_service_buffer));
sdp_register_service_internal(NULL, (uint8_t*)spp_service_buffer);
memset(dummy_service_buffer, 0, sizeof(dummy_service_buffer));
sdp_create_dummy_service((uint8_t*)dummy_service_buffer, "UUID128 Test");
de_dump_data_element((uint8_t*)dummy_service_buffer);
printf("Dummy service record size: %u\n\r", de_get_len((uint8_t*)dummy_service_buffer));
sdp_register_service_internal(NULL, (uint8_t*)dummy_service_buffer);
sdp_query_rfcomm_register_callback(handle_query_rfcomm_event, NULL);
hci_discoverable_control(0);
hci_connectable_control(0);
// turn on!
hci_power_control(HCI_POWER_ON);
btstack_stdin_setup(stdin_process);
// set one-shot timer
// timer_source_t heartbeat;
// heartbeat.process = &heartbeat_handler;
// run_loop_set_timer(&heartbeat, HEARTBEAT_PERIOD_MS);
// run_loop_add_timer(&heartbeat);
return 0;
}
void l2cap_init(){
new_credits_blocked = 0;
signaling_responses_pending = 0;
l2cap_channels = NULL;
l2cap_services = NULL;
packet_handler = null_packet_handler;
//
// register callback with HCI
//
hci_register_packet_handler(&l2cap_packet_handler);
hci_connectable_control(0); // no services yet
}
void btstack_libusb_device_base::init()
{
/// GET STARTED with BTstack ///
btstack_memory_init();
run_loop_init(RUN_LOOP_POSIX);
hci_dump_open( nullptr, HCI_DUMP_STDOUT );
// init HCI
hci_init( hci_transport_usb_instance(), nullptr, nullptr, nullptr );
// handle CTRL-c
signal(SIGINT, sigint_handler);
// setup app
hci_register_packet_handler( &btstack_libusb_device_base::btstack_packet_handler );
hci_connectable_control(0); // no services yet
// turn on!
hci_power_control(HCI_POWER_ON);
// go
run_loop_execute();
}
int stdin_process(struct data_source *ds){
char buffer;
read(ds->fd, &buffer, 1);
// passkey input
if (ui_digits_for_passkey){
if (buffer < '0' || buffer > '9') return 0;
printf("%c", buffer);
fflush(stdout);
ui_passkey = ui_passkey * 10 + buffer - '0';
ui_digits_for_passkey--;
if (ui_digits_for_passkey == 0){
printf("\nSending Passkey '%06u'\n", ui_passkey);
hci_send_cmd(&hci_user_passkey_request_reply, remote, ui_passkey);
}
return 0;
}
if (ui_chars_for_pin){
printf("%c", buffer);
fflush(stdout);
if (buffer == '\n'){
printf("\nSending Pin '%s'\n", ui_pin);
hci_send_cmd(&hci_pin_code_request_reply, remote, ui_pin_offset, ui_pin);
} else {
ui_pin[ui_pin_offset++] = buffer;
}
return 0;
}
switch (buffer){
case 'c':
gap_connectable = 0;
hci_connectable_control(0);
show_usage();
break;
case 'C':
gap_connectable = 1;
hci_connectable_control(1);
show_usage();
break;
case 'd':
gap_discoverable = 0;
hci_discoverable_control(0);
show_usage();
break;
case 'D':
gap_discoverable = 1;
hci_discoverable_control(1);
show_usage();
break;
case 'b':
gap_bondable = 0;
// gap_set_bondable_mode(0);
update_auth_req();
show_usage();
break;
case 'B':
gap_bondable = 1;
// gap_set_bondable_mode(1);
update_auth_req();
show_usage();
break;
case 'm':
gap_mitm_protection = 0;
update_auth_req();
show_usage();
break;
case 'M':
gap_mitm_protection = 1;
update_auth_req();
show_usage();
break;
case '<':
gap_dedicated_bonding_mode = 0;
update_auth_req();
show_usage();
break;
case '>':
gap_dedicated_bonding_mode = 1;
update_auth_req();
show_usage();
break;
case 'e':
gap_io_capabilities = "IO_CAPABILITY_DISPLAY_ONLY";
hci_ssp_set_io_capability(IO_CAPABILITY_DISPLAY_ONLY);
show_usage();
break;
case 'f':
gap_io_capabilities = "IO_CAPABILITY_DISPLAY_YES_NO";
hci_ssp_set_io_capability(IO_CAPABILITY_DISPLAY_YES_NO);
show_usage();
break;
case 'g':
gap_io_capabilities = "IO_CAPABILITY_NO_INPUT_NO_OUTPUT";
hci_ssp_set_io_capability(IO_CAPABILITY_NO_INPUT_NO_OUTPUT);
show_usage();
break;
case 'h':
gap_io_capabilities = "IO_CAPABILITY_KEYBOARD_ONLY";
hci_ssp_set_io_capability(IO_CAPABILITY_KEYBOARD_ONLY);
show_usage();
break;
case 'i':
start_scan();
break;
case 'j':
printf("Start dedicated bonding to %s using MITM %u\n", bd_addr_to_str(remote), gap_mitm_protection);
gap_dedicated_bonding(remote, gap_mitm_protection);
break;
case 'z':
printf("Start dedicated bonding to %s using legacy pairing\n", bd_addr_to_str(remote));
gap_dedicated_bonding(remote, gap_mitm_protection);
break;
case 'y':
printf("Disabling SSP for this session\n");
hci_send_cmd(&hci_write_simple_pairing_mode, 0);
break;
case 'k':
printf("Start SDP query for SPP service\n");
sdp_query_rfcomm_channel_and_name_for_uuid(remote_rfcomm, 0x1101);
break;
case 't':
printf("Terminate connection with handle 0x%04x\n", handle);
hci_send_cmd(&hci_disconnect, handle, 0x13); // remote closed connection
break;
case 'p':
printf("Creating HCI Connection to %s\n", bd_addr_to_str(remote));
hci_send_cmd(&hci_create_connection, remote, hci_usable_acl_packet_types(), 0, 0, 0, 1);
break;
// printf("Creating L2CAP Connection to %s, PSM SDP\n", bd_addr_to_str(remote));
// l2cap_create_channel_internal(NULL, packet_handler, remote, PSM_SDP, 100);
// break;
// case 'u':
// printf("Creating L2CAP Connection to %s, PSM 3\n", bd_addr_to_str(remote));
// l2cap_create_channel_internal(NULL, packet_handler, remote, 3, 100);
// break;
case 'q':
printf("Send L2CAP Data\n");
l2cap_send_internal(local_cid, (uint8_t *) "0123456789", 10);
break;
case 'r':
printf("Send L2CAP ECHO Request\n");
l2cap_send_echo_request(handle, (uint8_t *) "Hello World!", 13);
break;
case 's':
printf("L2CAP Channel Closed\n");
l2cap_disconnect_internal(local_cid, 0);
break;
case 'x':
printf("Outgoing L2CAP Channels to SDP will also require SSP\n");
l2cap_require_security_level_2_for_outgoing_sdp();
break;
case 'l':
printf("Creating RFCOMM Channel to %s #%u\n", bd_addr_to_str(remote_rfcomm), rfcomm_channel_nr);
rfcomm_create_channel_internal(NULL, remote_rfcomm, rfcomm_channel_nr);
break;
case 'n':
printf("Send RFCOMM Data\n"); // mtu < 60
rfcomm_send_internal(rfcomm_channel_id, (uint8_t *) "012345678901234567890123456789012345678901234567890123456789", mtu);
break;
case 'u':
printf("Sending RLS indicating framing error\n"); // mtu < 60
rfcomm_send_local_line_status(rfcomm_channel_id, 9);
break;
case 'v':
printf("Sending RPN CMD to select 115200 baud\n"); // mtu < 60
rfcomm_send_port_configuration(rfcomm_channel_id, RPN_BAUD_115200, RPN_DATA_BITS_8, RPN_STOP_BITS_1_0, RPN_PARITY_NONE, 0);
break;
case 'w':
printf("Sending RPN REQ to query remote port settings\n"); // mtu < 60
rfcomm_query_port_configuration(rfcomm_channel_id);
break;
case 'o':
printf("RFCOMM Channel Closed\n");
rfcomm_disconnect_internal(rfcomm_channel_id);
rfcomm_channel_id = 0;
break;
case '+':
printf("Initiate SSP on current connection\n");
gap_request_security_level(handle, LEVEL_2);
break;
case '*':
printf("Sending SSP User Confirmation for %s\n", bd_addr_to_str(remote));
hci_send_cmd(&hci_user_confirmation_request_reply, remote);
break;
case '=':
printf("Deleting Link Key for %s\n", bd_addr_to_str(remote));
hci_drop_link_key_for_bd_addr(remote);
break;
case 'U':
printf("Sending UCD data on handle 0x%04x\n", handle);
send_ucd_packet();
break;
case 'Q':
printf("Closing HCI Connection to handle 0x%04x\n", handle);
gap_disconnect(handle);
break;
default:
show_usage();
break;
}
return 0;
}
