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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2011 Nokia Corporation
*
*
* 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
*
*/
#include <stdlib.h>
#include <glib.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include <bluetooth/uuid.h>
#include <bluetooth/sdp.h>
#include "att.h"
#include "gattrib.h"
#include "gatt.h"
#include "btio.h"
#include "gatttool.h"
/* Minimum MTU for ATT connections */
#define ATT_MIN_MTU_LE 23
#define ATT_MIN_MTU_L2CAP 48
GIOChannel *gatt_connect(const gchar *src, const gchar *dst,
const gchar *dst_type, const gchar *sec_level,
int psm, int mtu, BtIOConnect connect_cb)
{
GIOChannel *chan;
bdaddr_t sba, dba;
uint8_t dest_type;
GError *err = NULL;
BtIOSecLevel sec;
int minimum_mtu;
/* This check is required because currently setsockopt() returns no
* errors for MTU values smaller than the allowed minimum. */
minimum_mtu = psm ? ATT_MIN_MTU_L2CAP : ATT_MIN_MTU_LE;
if (mtu != 0 && mtu < minimum_mtu) {
g_printerr("MTU cannot be smaller than %d\n", minimum_mtu);
return NULL;
}
/* Remote device */
if (dst == NULL) {
g_printerr("Remote Bluetooth address required\n");
return NULL;
}
str2ba(dst, &dba);
/* Local adapter */
if (src != NULL) {
if (!strncmp(src, "hci", 3))
hci_devba(atoi(src + 3), &sba);
else
str2ba(src, &sba);
} else
bacpy(&sba, BDADDR_ANY);
/* Not used for BR/EDR */
if (strcmp(dst_type, "random") == 0)
dest_type = BDADDR_LE_RANDOM;
else
dest_type = BDADDR_LE_PUBLIC;
if (strcmp(sec_level, "medium") == 0)
sec = BT_IO_SEC_MEDIUM;
else if (strcmp(sec_level, "high") == 0)
sec = BT_IO_SEC_HIGH;
else
sec = BT_IO_SEC_LOW;
if (psm == 0)
chan = bt_io_connect(BT_IO_L2CAP, connect_cb, NULL, NULL, &err,
BT_IO_OPT_SOURCE_BDADDR, &sba,
BT_IO_OPT_DEST_BDADDR, &dba,
BT_IO_OPT_DEST_TYPE, dest_type,
BT_IO_OPT_CID, ATT_CID,
BT_IO_OPT_SEC_LEVEL, sec,
BT_IO_OPT_INVALID);
else
chan = bt_io_connect(BT_IO_L2CAP, connect_cb, NULL, NULL, &err,
BT_IO_OPT_SOURCE_BDADDR, &sba,
BT_IO_OPT_DEST_BDADDR, &dba,
BT_IO_OPT_PSM, psm,
BT_IO_OPT_IMTU, mtu,
BT_IO_OPT_SEC_LEVEL, sec,
BT_IO_OPT_INVALID);
if (err) {
g_printerr("%s\n", err->message);
g_error_free(err);
return NULL;
}
return chan;
}
size_t gatt_attr_data_from_string(const char *str, uint8_t **data)
{
char tmp[3];
size_t size, i;
size = strlen(str) / 2;
*data = g_try_malloc0(size);
if (*data == NULL)
return 0;
tmp[2] = '\0';
for (i = 0; i < size; i++) {
memcpy(tmp, str + (i * 2), 2);
(*data)[i] = (uint8_t) strtol(tmp, NULL, 16);
}
return size;
}
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