/****************************************************************************
* apps/wireless/bluetooth/btsak/btsak_gatt.c
* Bluetooth Swiss Army Knife -- GATT commands
*
* Copyright (C) 2018 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Based loosely on the i8sak IEEE 802.15.4 program by Anthony Merlino and
* Sebastien Lorquet. Commands inspired for btshell example in the
* Intel/Zephyr Arduino 101 package (BSD license).
*
* 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 NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <sys/ioctl.h>
#include <stdbool.h>
#include <stdlib.h>
#include <errno.h>
#include <nuttx/wireless/bluetooth/bt_core.h>
#include <nuttx/wireless/bluetooth/bt_gatt.h>
#include <nuttx/wireless/bluetooth/bt_ioctl.h>
#include "btsak.h"
/****************************************************************************
* Private data
****************************************************************************/
/****************************************************************************
* Private functions
****************************************************************************/
/****************************************************************************
* Name: btsak_cmd_discover_common
*
* Description:
* gatt [-h] <discover-cmd> [-h] <addr> public|private [<uuid16>]
*
****************************************************************************/
static void btsak_cmd_discover_common(FAR struct btsak_s *btsak,
int argc, FAR char *argv[],
enum bt_gatt_discover_e type)
{
struct btreq_s btreq;
unsigned int argndx;
int sockfd;
int ret;
FAR struct bt_discresonse_s *rsp;
struct bt_discresonse_s result[CONFIG_BLUETOOTH_MAXDISCOVER];
int i;
/* Check for help command */
if (argc == 2 && strcmp(argv[1], "-h") == 0)
{
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_SUCCESS);
}
argndx = (type == GATT_DISCOVER) ? 4 : 3;
if (argc < argndx)
{
fprintf(stderr,
"ERROR: Invalid number of arguments. Found %d expected at least %u\n",
argc - 1, argndx - 1);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
strncpy(btreq.btr_name, btsak->ifname, IFNAMSIZ);
btreq.btr_dtype = (uint8_t)type;
ret = btsak_str2addr(argv[1], btreq.btr_dpeer.val);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for <addr>: %s\n", argv[1]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addrtype(argv[2], &btreq.btr_dpeer.type);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for address type: %s\n", argv[2]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
if (type == GATT_DISCOVER)
{
btreq.btr_duuid16 = btsak_str2uint16(argv[3]);
}
else
{
btreq.btr_duuid16 = 0;
}
btreq.btr_dstart = 0x0001;
btreq.btr_dend = 0xffff;
if (argc > argndx)
{
btreq.btr_dstart = btsak_str2uint16(argv[argndx]);
argndx++;
if (argc > argndx)
{
btreq.btr_dend = btsak_str2uint16(argv[argndx]);
argndx++;
}
if (btreq.btr_dstart > btreq.btr_dend)
{
fprintf(stderr, "ERROR: Invalid handle range: %u-%u\n",
btreq.btr_dstart, btreq.btr_dend);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
}
/* Perform the IOCTL to start the discovery */
btreq.btr_gnrsp = CONFIG_BLUETOOTH_MAXDISCOVER;
btreq.btr_grsp = result;
btreq.btr_indx = 0;
sockfd = btsak_socket(btsak);
if (sockfd >= 0)
{
ret = ioctl(sockfd, SIOCBTDISCOVER, (unsigned long)((uintptr_t)&btreq));
if (ret < 0)
{
fprintf(stderr, "ERROR: ioctl(SIOCBTDISCOVER) failed: %d\n",
errno);
}
else
{
/* Show the results that we obtained */
printf("Discovered %d handles:\n", btreq.btr_gnrsp);
for (i = 0; i < btreq.btr_gnrsp; i++)
{
rsp = &result[i];
printf("%d.\thandle 0x%04x perm: %02x\n",
i, rsp->dr_handle, rsp->dr_perm);
}
}
close(sockfd);
}
}
/****************************************************************************
* Name: btsak_cmd_connect_common
*
* Description:
* Function used by the connect and disconnect commands.
*
****************************************************************************/
static void btsak_cmd_connect_common(FAR struct btsak_s *btsak, int argc,
FAR char *argv[], int cmd)
{
static struct btreq_s btreq;
int sockfd;
int ret;
if (argc == 2 && strcmp(argv[1], "-h") == 0)
{
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_SUCCESS);
}
if (argc != 3)
{
fprintf(stderr,
"ERROR: Invalid number of arguments. Found %d expected 2\n",
argc - 1);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addr(argv[1], &btreq.btr_rmtpeer.val[0]);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for <addr>: %s\n", argv[1]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addrtype(argv[2], &btreq.btr_rmtpeer.type);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for address type: %s\n", argv[2]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
/* Perform the IOCTL to start/end the connection */
strncpy(btreq.btr_name, btsak->ifname, IFNAMSIZ);
sockfd = btsak_socket(btsak);
if (sockfd >= 0)
{
ret = ioctl(sockfd, cmd, (unsigned long)((uintptr_t)&btreq));
if (ret < 0)
{
fprintf(stderr, "ERROR: ioctl(SIOCBT%sCONNECT) failed: %d\n",
cmd == SIOCBTCONNECT ? "" : "DIS", errno);
}
else
{
printf("Connect pending...\n");
}
close(sockfd);
}
}
/****************************************************************************
* Name: btsak_cmd_read_common
*
* Description:
* Function used by the read and read_multiple commands.
*
****************************************************************************/
static void btsak_cmd_read_common(FAR struct btsak_s *btsak, int argc,
FAR char *argv[], bool multiple)
{
int i;
int j;
int ret;
int sockfd;
uint8_t data[HCI_GATTRD_DATA];
struct btreq_s btreq;
memset(&btreq, 0, sizeof(struct btreq_s));
if (argc < 4 || argc > 5)
{
fprintf(stderr,
"ERROR: Invalid number of arguments. Found %d expected 3 or 4\n",
argc - 1);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addr(argv[1], btreq.btr_rdpeer.val);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for <addr>: %s\n", argv[1]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addrtype(argv[2], &btreq.btr_rdpeer.type);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for address type: %s\n", argv[2]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
btreq.btr_rdoffset = 0;
btreq.btr_rdnhandles = multiple ? argc - 3 : 1;
if (!multiple && argc > 4)
{
btreq.btr_rdoffset = btsak_str2uint16(argv[4]);
}
for (i = 0; i < btreq.btr_rdnhandles; i++)
{
btreq.btr_rdhandles[i] = btsak_str2uint16(argv[i + 3]);
}
/* Perform the IOCTL to start the read */
strncpy(btreq.btr_name, btsak->ifname, IFNAMSIZ);
btreq.btr_rdsize = HCI_GATTRD_DATA;
btreq.btr_rddata = data;
sockfd = btsak_socket(btsak);
if (sockfd >= 0)
{
ret = ioctl(sockfd, SIOCBTGATTRD, (unsigned long)((uintptr_t)&btreq));
if (ret < 0)
{
fprintf(stderr, "ERROR: ioctl(SIOCBTGATTRD) failed: %d\n", errno);
}
else
{
/* Show the results that we obtained */
printf("Read %d bytes:\n", btreq.btr_rdsize);
for (i = 0; i < btreq.btr_rdsize; i += 16)
{
for (j = 0; j < 16 && (i + j) < btreq.btr_rdsize; j++)
{
if (j == 8)
{
putchar(' ');
}
printf(" %02x", data[i + j]);
}
putchar('\n');
}
}
close(sockfd);
}
}
/****************************************************************************
* Public functions
****************************************************************************/
/****************************************************************************
* Name: btsak_cmd_gatt_exchange_mtu
*
* Description:
* gatt [-h] exchange_mtu [-h] <addr> public|private command
*
****************************************************************************/
void btsak_cmd_gatt_exchange_mtu(FAR struct btsak_s *btsak, int argc,
FAR char *argv[])
{
struct btreq_s btreq;
int sockfd;
int ret;
if (argc == 2 && strcmp(argv[1], "-h") == 0)
{
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_SUCCESS);
}
if (argc != 3)
{
fprintf(stderr,
"ERROR: Invalid number of arguments. Found %d expected 2\n",
argc - 1);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addr(argv[1], btreq.btr_expeer.val);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for <addr>: %s\n", argv[1]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addrtype(argv[2], &btreq.btr_expeer.type);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for address type: %s\n", argv[2]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
/* Perform the IOCTL to start the MTU exchange */
strncpy(btreq.btr_name, btsak->ifname, IFNAMSIZ);
sockfd = btsak_socket(btsak);
if (sockfd >= 0)
{
ret = ioctl(sockfd, SIOCBTEXCHANGE, (unsigned long)((uintptr_t)&btreq));
if (ret < 0)
{
fprintf(stderr, "ERROR: ioctl(SIOCBTEXCHANGE) failed: %d\n",
errno);
}
else
{
printf("MTU Exchange %s\n",
btreq.btr_exresult == 0 ? "succeeded" : "failed");
}
close(sockfd);
}
}
/****************************************************************************
* Name: btsak_cmd_discover
*
* Description:
* gatt [-h] discover [-h] <addr> public|private <uuid16> command
*
****************************************************************************/
void btsak_cmd_discover(FAR struct btsak_s *btsak, int argc, FAR char *argv[])
{
btsak_cmd_discover_common(btsak, argc, argv, GATT_DISCOVER);
}
/****************************************************************************
* Name: btsak_cmd_gatt_discover_characteristic
*
* Description:
* gatt [-h] characteristic [-h] <addr> public|private command
*
****************************************************************************/
void btsak_cmd_gatt_discover_characteristic(FAR struct btsak_s *btsak,
int argc, FAR char *argv[])
{
btsak_cmd_discover_common(btsak, argc, argv, GATT_DISCOVER_CHAR);
}
/****************************************************************************
* Name: btsak_cmd_gatt_discover_descriptor
*
* Description:
* gatt [-h] descriptor [-h] <addr> public|private command
*
****************************************************************************/
void btsak_cmd_gatt_discover_descriptor(FAR struct btsak_s *btsak,
int argc, FAR char *argv[])
{
btsak_cmd_discover_common(btsak, argc, argv, GATT_DISCOVER_DESC);
}
/****************************************************************************
* Name: btsak_cmd_gatt_read
*
* Description:
* gatt [-h] read [-h] <addr> public|private <handle> [<offset>] command
*
****************************************************************************/
void btsak_cmd_gatt_read(FAR struct btsak_s *btsak, int argc,
FAR char *argv[])
{
if (argc == 2 && strcmp(argv[1], "-h") == 0)
{
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_SUCCESS);
}
btsak_cmd_read_common(btsak, argc, argv, false);
}
/****************************************************************************
* Name: btsak_cmd_gatt_read_multiple
*
* Description:
* gatt [-h] read-multiple [-h] <addr> public|private <handle> [<handle> [<handle>]..]
*
****************************************************************************/
void btsak_cmd_gatt_read_multiple(FAR struct btsak_s *btsak, int argc,
FAR char *argv[])
{
if (argc == 2 && strcmp(argv[1], "-h") == 0)
{
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_SUCCESS);
}
if (argc < 4)
{
fprintf(stderr,
"ERROR: Invalid number of arguments. Found %d expected at least 3\n",
argc - 1);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
btsak_cmd_read_common(btsak, argc, argv, true);
}
/****************************************************************************
* Name: btsak_cmd_gatt_write
*
* Description:
* gatt [-h] write [-h] [-h] <addr> public|private <handle> <byte> [<byte> [<byte>]..]
*
****************************************************************************/
void btsak_cmd_gatt_write(FAR struct btsak_s *btsak, int argc,
FAR char *argv[])
{
struct btreq_s btreq;
int sockfd;
int ret;
int i;
if (argc == 2 && strcmp(argv[1], "-h") == 0)
{
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_SUCCESS);
}
if (argc < 5)
{
fprintf(stderr,
"ERROR: Invalid number of arguments. Found %d expected at least 4\n",
argc - 1);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addr(argv[1], btreq.btr_wrpeer.val);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for <addr>: %s\n", argv[1]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
ret = btsak_str2addrtype(argv[2], &btreq.btr_wrpeer.type);
if (ret < 0)
{
fprintf(stderr, "ERROR: Bad value for address type: %s\n", argv[2]);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
btreq.btr_wrhandle = btsak_str2uint16(argv[3]);
btreq.btr_wrnbytes = argc - 4;
if (btreq.btr_wrnbytes > HCI_GATTWR_DATA)
{
fprintf(stderr, "ERROR: Too much data. Limit is %u bytes%s\n",
HCI_GATTWR_DATA);
btsak_gatt_showusage(btsak->progname, argv[0], EXIT_FAILURE);
}
for (i = 0; i < btreq.btr_wrnbytes; i++)
{
btreq.btr_wrdata[i] = btsak_str2uint8(argv[i + 4]);
}
/* Perform the IOCTL to start the read */
strncpy(btreq.btr_name, btsak->ifname, IFNAMSIZ);
sockfd = btsak_socket(btsak);
if (sockfd >= 0)
{
ret = ioctl(sockfd, SIOCBTGATTWR, (unsigned long)((uintptr_t)&btreq));
if (ret < 0)
{
fprintf(stderr, "ERROR: ioctl(SIOCBTGATTWR) failed: %d\n",
errno);
}
else
{
printf("Write %s\n",
btreq.btr_wrresult == 0 ? "succeeded" : "failed");
}
close(sockfd);
}
}
/****************************************************************************
* Name: btsak_cmd_gatt_connect
*
* Description:
* gatt [-h] connect [-h] <addr> public|private
*
****************************************************************************/
void btsak_cmd_connect(FAR struct btsak_s *btsak, int argc,
FAR char *argv[])
{
btsak_cmd_connect_common(btsak, argc, argv, SIOCBTCONNECT);
}
/****************************************************************************
* Name: btsak_cmd_gatt_connect
*
* Description:
* gatt [-h] disconnect [-h] <addr> public|private
*
****************************************************************************/
void btsak_cmd_disconnect(FAR struct btsak_s *btsak, int argc,
FAR char *argv[])
{
btsak_cmd_connect_common(btsak, argc, argv, SIOCBTDISCONNECT);
}