mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
synced 2024-12-12 05:24:19 +08:00
a278db781a
This patch puts the new UUID functions into use for GATT-related code, and adds some convenience functions to ATT API (att.h). Example GATT server is also changed.
127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/*
|
|
*
|
|
* 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 "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 *sec_level, int psm, int mtu,
|
|
BtIOConnect connect_cb)
|
|
{
|
|
GIOChannel *chan;
|
|
bdaddr_t sba, dba;
|
|
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);
|
|
|
|
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_CID, GATT_CID,
|
|
BT_IO_OPT_OMTU, mtu,
|
|
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_OMTU, 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;
|
|
}
|