Merge "Add EATT support for dump_le_audio.py tool" (5a1a64d7) · Commits · e / os / android_packages_modules_Bluetooth

system/tools/scripts/dump_le_audio.py

+53 −8

Original line number	Diff line number	Diff line
		@@ -63,7 +63,10 @@ ISO_PACKET = 5
		SENT = 0
		RECEIVED = 1

		L2CAP_ATT_CID = 4
		L2CAP_ATT_CID = 0x0004
		L2CAP_CID = 0x0005

		PSM_EATT = 0x0027

		# opcode for att protocol
		OPCODE_ATT_READ_BY_TYPE_RSP = 0x09
		@@ -83,6 +86,10 @@ OPCODE_LE_SET_PERIODIC_ADVERTISING_DATA = 0x203F
		OPCODE_LE_CREATE_BIG = 0x2068
		OPCODE_LE_SETUP_ISO_DATA_PATH = 0x206E

		# opcode for L2CAP channel
		OPCODE_L2CAP_CREDIT_BASED_CONNECTION_REQ = 0x17
		OPCODE_L2CAP_CREDIT_BASED_CONNECTION_RSP = 0x18

		# HCI event
		EVENT_CODE_LE_META_EVENT = 0x3E
		SUBEVENT_CODE_LE_CREATE_BIG_COMPLETE = 0x1B
		@@ -129,6 +136,10 @@ debug_enable = False
		add_header = False
		ase_handle = 0xFFFF

		l2cap_identifier_set = set()
		source_cid = set()
		destinate_cid = set()


		class Connection:

		@@ -676,9 +687,44 @@ def parse_acl_packet(packet, flags, timestamp):
		return

		if debug_enable:
		debug_print("ACL connection_handle - " + str(connection_handle))
		debug_print("ACL connection_handle - " + str(connection_handle) + " channel id - " + (str(channel_id)))

		# Gather EATT CID
		if channel_id == L2CAP_CID:
		global l2cap_identifier_set
		global source_cid
		global destinate_cid
		opcode, packet = unpack_data(packet, 1, False)
		identifier, packet = unpack_data(packet, 1, False)
		l2cap_length, packet = unpack_data(packet, 2, False)
		if opcode == OPCODE_L2CAP_CREDIT_BASED_CONNECTION_REQ:
		spsm, packet = unpack_data(packet, 2, False)
		if spsm == PSM_EATT:
		if opcode == OPCODE_L2CAP_CREDIT_BASED_CONNECTION_REQ:
		l2cap_identifier_set.add(identifier)
		packet = unpack_data(packet, 6, True)
		for i in range(0, l2cap_length - 8, 2):
		cid, packet = unpack_data(packet, 2, False)
		source_cid.add(cid)

		if opcode == OPCODE_L2CAP_CREDIT_BASED_CONNECTION_RSP:
		if identifier in l2cap_identifier_set:
		l2cap_identifier_set.remove(identifier)
		packet = unpack_data(packet, 8, True)
		for i in range(0, l2cap_length - 8, 2):
		cid, packet = unpack_data(packet, 2, False)
		destinate_cid.add(cid)

		# Parse ATT protocol
		if channel_id == L2CAP_ATT_CID:
		if debug_enable:
		debug_print("parse_att_packet")
		parse_att_packet(packet, connection_handle, flags, timestamp)

		if channel_id in source_cid or channel_id in destinate_cid:
		if debug_enable:
		debug_print("parse_eatt_packet")
		packet = unpack_data(packet, 2, True)
		parse_att_packet(packet, connection_handle, flags, timestamp)


		@@ -720,8 +766,8 @@ def parse_next_packet(btsnoop_file):
		if len(packet_header) != 25:
		return False

		(length_original, length_captured, flags, dropped_packets, timestamp, type) = struct.unpack(
		">IIIIqB", packet_header)
		(length_original, length_captured, flags, dropped_packets, timestamp,
		type) = struct.unpack(">IIIIqB", packet_header)

		if length_original != length_captured:
		debug_print("Filtered btnsoop, can not be parsed")
		@@ -751,8 +797,7 @@ def main():
		parser = argparse.ArgumentParser()
		parser.add_argument("btsnoop_file", help="btsnoop file contains LE audio start procedure")
		parser.add_argument("-v", "--verbose", help="Enable verbose log.", action="store_true")
		parser.add_argument(
		"--header",
		parser.add_argument("--header",
		help="Add the header for LC3 Conformance Interoperability Test Software V.1.0.3.",
		action="store_true")
		parser.add_argument("--ase_handle", help="Set the ASE handle manually.", type=int)