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tools: Add utility for emulating iBeacon advertising

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This commit is contained in:
Marcel Holtmann 2014-02-24 14:28:14 -08:00
parent c3ff0ca0d0
commit 1c9cef270a
3 changed files with 320 additions and 1 deletions
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1
.gitignore vendored
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@ -67,6 +67,7 @@ tools/bluetooth-player
tools/l2cap-tester
tools/sco-tester
tools/hci-tester
tools/ibeacon
tools/btproxy
tools/btinfo
tools/3dsp

10
Makefile.tools
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@ -256,7 +256,8 @@ noinst_PROGRAMS += tools/bdaddr tools/avinfo tools/avtest \
tools/hcieventmask tools/hcisecfilter \
tools/btmgmt tools/btinfo tools/btattach \
tools/btsnoop tools/btproxy tools/btiotest \
tools/mpris-player tools/cltest tools/seq2bseq
tools/mpris-player tools/cltest tools/seq2bseq \
tools/ibeacon
tools_bdaddr_SOURCES = tools/bdaddr.c src/oui.h src/oui.c
tools_bdaddr_LDADD = lib/libbluetooth-internal.la @UDEV_LIBS@
@ -307,6 +308,13 @@ tools_cltest_LDADD = lib/libbluetooth-internal.la
tools_seq2bseq_SOURCES = tools/seq2bseq.c
tools_ibeacon_SOURCES = tools/ibeacon.c monitor/bt.h \
monitor/mainloop.h monitor/mainloop.c \
src/shared/io.h src/shared/io-mainloop.c \
src/shared/hci.h src/shared/hci.c \
src/shared/util.h src/shared/util.c \
src/shared/queue.h src/shared/queue.c
EXTRA_DIST += tools/bdaddr.1
endif

310
tools/ibeacon.c Normal file
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@ -0,0 +1,310 @@
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2011-2012 Intel Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <ctype.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include "monitor/mainloop.h"
#include "monitor/bt.h"
#include "src/shared/util.h"
#include "src/shared/hci.h"
static int urandom_fd;
static struct bt_hci *hci_dev;
static void shutdown_timeout(int id, void *user_data)
{
mainloop_remove_timeout(id);
mainloop_quit();
}
static void shutdown_complete(const void *data, uint8_t size, void *user_data)
{
unsigned int id = PTR_TO_UINT(user_data);
shutdown_timeout(id, NULL);
}
static void shutdown_device(void)
{
uint8_t enable = 0x00;
unsigned int id;
bt_hci_flush(hci_dev);
id = mainloop_add_timeout(5, shutdown_timeout, NULL, NULL);
bt_hci_send(hci_dev, BT_HCI_CMD_LE_SET_ADV_ENABLE,
&enable, 1, NULL, NULL, NULL);
bt_hci_send(hci_dev, BT_HCI_CMD_RESET, NULL, 0,
shutdown_complete, UINT_TO_PTR(id), NULL);
}
static void set_random_address(void)
{
struct bt_hci_cmd_le_set_random_address cmd;
ssize_t len;
len = read(urandom_fd, cmd.addr, sizeof(cmd.addr));
if (len < 0 || len != sizeof(cmd.addr)) {
fprintf(stderr, "Failed to read random data\n");
return;
}
/* Clear top most significant bits */
cmd.addr[5] &= 0x3f;
bt_hci_send(hci_dev, BT_HCI_CMD_LE_SET_RANDOM_ADDRESS,
&cmd, sizeof(cmd), NULL, NULL, NULL);
}
static void set_adv_parameters(void)
{
struct bt_hci_cmd_le_set_adv_parameters cmd;
cmd.min_interval = cpu_to_le16(0x0800);
cmd.max_interval = cpu_to_le16(0x0800);
cmd.type = 0x03; /* Non-connectable advertising */
cmd.own_addr_type = 0x01; /* Use random address */
cmd.direct_addr_type = 0x00;
memset(cmd.direct_addr, 0, 6);
cmd.channel_map = 0x07;
cmd.filter_policy = 0x00;
bt_hci_send(hci_dev, BT_HCI_CMD_LE_SET_ADV_PARAMETERS,
&cmd, sizeof(cmd), NULL, NULL, NULL);
}
static void set_adv_enable(void)
{
uint8_t enable = 0x01;
bt_hci_send(hci_dev, BT_HCI_CMD_LE_SET_ADV_ENABLE,
&enable, 1, NULL, NULL, NULL);
}
static void adv_data_callback(const void *data, uint8_t size,
void *user_data)
{
uint8_t status = *((uint8_t *) data);
if (status) {
fprintf(stderr, "Failed to set advertising data\n");
shutdown_device();
return;
}
set_random_address();
set_adv_parameters();
set_adv_enable();
}
static void adv_tx_power_callback(const void *data, uint8_t size,
void *user_data)
{
const struct bt_hci_rsp_le_read_adv_tx_power *rsp = data;
struct bt_hci_cmd_le_set_adv_data cmd;
if (rsp->status) {
fprintf(stderr, "Failed to read advertising TX power\n");
shutdown_device();
return;
}
cmd.data[0] = 0x02; /* Field length */
cmd.data[1] = 0x01; /* Flags */
cmd.data[2] |= 0x02; /* LE General Discoverable Mode */
cmd.data[2] |= 0x04; /* BR/EDR Not Supported */
cmd.data[3] = 0x1a; /* Field length */
cmd.data[4] = 0xff; /* Vendor field */
cmd.data[5] = 0x4c; /* Apple (76) - LSB */
cmd.data[6] = 0x00; /* Apple (76) - MSB */
cmd.data[7] = 0x02; /* iBeacon type */
cmd.data[8] = 0x15; /* Length */
memset(cmd.data + 9, 0, 16); /* UUID */
cmd.data[25] = 0x00; /* Major - LSB */
cmd.data[26] = 0x00; /* Major - MSB */
cmd.data[27] = 0x00; /* Minor - LSB */
cmd.data[28] = 0x00; /* Minor - MSB */
cmd.data[29] = 0xc5; /* TX power level */
cmd.data[30] = 0x00; /* Field terminator */
cmd.len = 1 + cmd.data[0] + 1 + cmd.data[3];
bt_hci_send(hci_dev, BT_HCI_CMD_LE_SET_ADV_DATA, &cmd, sizeof(cmd),
adv_data_callback, NULL, NULL);
}
static void local_features_callback(const void *data, uint8_t size,
void *user_data)
{
const struct bt_hci_rsp_read_local_features *rsp = data;
if (rsp->status) {
fprintf(stderr, "Failed to read local features\n");
shutdown_device();
return;
}
if (!(rsp->features[4] & 0x40)) {
fprintf(stderr, "Controller without Low Energy support\n");
shutdown_device();
return;
}
bt_hci_send(hci_dev, BT_HCI_CMD_LE_READ_ADV_TX_POWER, NULL, 0,
adv_tx_power_callback, NULL, NULL);
}
static void start_ibeacon(void)
{
bt_hci_send(hci_dev, BT_HCI_CMD_RESET, NULL, 0, NULL, NULL, NULL);
bt_hci_send(hci_dev, BT_HCI_CMD_READ_LOCAL_FEATURES, NULL, 0,
local_features_callback, NULL, NULL);
}
static void signal_callback(int signum, void *user_data)
{
static bool terminated = false;
switch (signum) {
case SIGINT:
case SIGTERM:
if (!terminated) {
shutdown_device();
terminated = true;
}
break;
}
}
static void usage(void)
{
printf("ibeacon - Low Energy iBeacon testing tool\n"
"Usage:\n");
printf("\tibeacon [options]\n");
printf("Options:\n"
"\t-i, --index <num> Use specified controller\n"
"\t-h, --help Show help options\n");
}
static const struct option main_options[] = {
{ "index", required_argument, NULL, 'i' },
{ "version", no_argument, NULL, 'v' },
{ "help", no_argument, NULL, 'h' },
{ }
};
int main(int argc, char *argv[])
{
uint16_t index = 0;
const char *str;
sigset_t mask;
int exit_status;
for (;;) {
int opt;
opt = getopt_long(argc, argv, "i:vh", main_options, NULL);
if (opt < 0)
break;
switch (opt) {
case 'i':
if (strlen(optarg) > 3 && !strncmp(optarg, "hci", 3))
str = optarg + 3;
else
str = optarg;
if (!isdigit(*str)) {
usage();
return EXIT_FAILURE;
}
index = atoi(str);
break;
case 'v':
printf("%s\n", VERSION);
return EXIT_SUCCESS;
case 'h':
usage();
return EXIT_SUCCESS;
default:
return EXIT_FAILURE;
}
}
if (argc - optind > 0) {
fprintf(stderr, "Invalid command line parameters\n");
return EXIT_FAILURE;
}
urandom_fd = open("/dev/urandom", O_RDONLY);
if (urandom_fd < 0) {
fprintf(stderr, "Failed to open /dev/urandom device\n");
return EXIT_FAILURE;
}
mainloop_init();
sigemptyset(&mask);
sigaddset(&mask, SIGINT);
sigaddset(&mask, SIGTERM);
mainloop_set_signal(&mask, signal_callback, NULL, NULL);
printf("Low Energy iBeacon utility ver %s\n", VERSION);
hci_dev = bt_hci_new_user_channel(index);
if (!hci_dev) {
fprintf(stderr, "Failed to open HCI user channel\n");
exit_status = EXIT_FAILURE;
goto done;
}
start_ibeacon();
exit_status = mainloop_run();
bt_hci_unref(hci_dev);
done:
close(urandom_fd);
return exit_status;
}