def hci_send(self, cmd):
""" send HCI Command via acquired socket BUT DON'T block waiting for an answer """
packet = bt.HCI_Hdr() / bt.HCI_Command_Hdr() / cmd
self.logger.debug(
"Packet to be send out with 'hci_send':\n###[ Structure ]###\n {}\n{}"
.format(packet.summary(), packet.show2(dump=True)))
return self.socket.send(packet)
def connect(self, hwaddr):
p = (
bluetooth.HCI_Hdr()
/ bluetooth.HCI_Command_Hdr(opcode=0x200d)
/ bluetooth.HCI_Cmd_LE_Create_Connection(
interval=96,
window=48,
filter=0,
patype=1,
paddr=hwaddr,
atype=1,
min_interval=24,
max_interval=40,
latency=0,
timeout=500,
min_ce=0,
max_ce=0,
)
)
self._send(p)
while True:
p = self.socket.recv()
if self.debug:
hexdump(p)
if p.type == 4:
if p.code == 0x3e and p.event == 1 and p.status == 0:
if self.debug:
print(f"Connected with handle {p.handle}")
self.connection_handle = p.handle
return
def disconnect(self):
p = (
bluetooth.HCI_Hdr()
/ bluetooth.HCI_Command_Hdr(opcode=0x0406)
/ bluetooth.HCI_Cmd_Disconnect(handle=self.connection_handle)
)
self._send(p)
while True:
p = self.socket.recv()
if p.type == 4:
if p.code == 0x5:
return
def read_attribute(self, gatt_handle):
p = (
bluetooth.HCI_Hdr(type=2)
/ bluetooth.HCI_ACL_Hdr(handle=self.connection_handle)
/ bluetooth.L2CAP_Hdr(cid=4)
/ bluetooth.ATT_Hdr()
/ bluetooth.ATT_Read_Request(gatt_handle=gatt_handle)
)
self._send(p)
while True:
p = self.socket.recv()
if p.type == 2 and p.opcode == 0xb:
return p.value
def l2cap_send(self, cmd, handle, request_id):
""" send non-blocking L2CAP command with specified handle and id """
return self.socket.send(bt.HCI_Hdr() / bt.HCI_ACL_Hdr(handle=handle) /
bt.L2CAP_Hdr() /
bt.L2CAP_CmdHdr(id=request_id) / cmd)
def hci_send_command(self, cmd):
""" send HCI Command via acquired socket and block waiting for an answer """
return self.socket.send_command(bt.HCI_Hdr() / bt.HCI_Command_Hdr() /
cmd)