mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-24 00:18:26 +00:00
74 lines
1.7 KiB
Python
74 lines
1.7 KiB
Python
import struct
|
|
|
|
EVENT_TYPE_START = 2
|
|
EVENT_TYPE_STOP = 3
|
|
EVENT_TYPE_OPEN = 4
|
|
EVENT_TYPE_CLOSE = 5
|
|
EVENT_TYPE_OUTPUT = 6
|
|
EVENT_TYPE_CREATE2 = 11
|
|
EVENT_TYPE_INTPUT2 = 12
|
|
|
|
DATA_MAX = 4096
|
|
EVENT_LENGTH = 4380
|
|
|
|
INPUT2_REQ_FMT = "< H {}s".format(DATA_MAX)
|
|
CREATE2_REQ_FMT = "< 128s 64s 64s H H L L L L {}s".format(DATA_MAX)
|
|
START_REQ_FMT = "< Q"
|
|
OUTPUT_REQ_FMT = "< {}s H B".format(DATA_MAX)
|
|
|
|
|
|
def pack_event(ev_type, request):
|
|
return ev_type.to_bytes(4, byteorder="little") + request
|
|
|
|
|
|
def unpack_event(buf):
|
|
return int.from_bytes(buf[:4], byteorder="little"), buf[4:]
|
|
|
|
|
|
def parse_event(event):
|
|
assert len(event) == EVENT_LENGTH
|
|
|
|
ev_type, request = unpack_event(event)
|
|
|
|
if ev_type == EVENT_TYPE_START:
|
|
request = struct.unpack_from(START_REQ_FMT, request)
|
|
elif ev_type == EVENT_TYPE_STOP:
|
|
request = []
|
|
elif ev_type == EVENT_TYPE_OPEN:
|
|
request = []
|
|
elif ev_type == EVENT_TYPE_CLOSE:
|
|
request = []
|
|
elif ev_type == EVENT_TYPE_OUTPUT:
|
|
data, size, rtype = struct.unpack_from(OUTPUT_REQ_FMT, request)
|
|
data = data[:size]
|
|
request = [data, size, rtype]
|
|
|
|
return ev_type, request
|
|
|
|
|
|
def create_create2_event(
|
|
name, phys, uniq, bus, vendor, product, version, country, rd_data
|
|
):
|
|
uhid_create2_req = struct.pack(
|
|
CREATE2_REQ_FMT,
|
|
name,
|
|
phys,
|
|
uniq,
|
|
len(rd_data),
|
|
bus,
|
|
vendor,
|
|
product,
|
|
version,
|
|
country,
|
|
rd_data,
|
|
)
|
|
event = pack_event(EVENT_TYPE_CREATE2, uhid_create2_req)
|
|
|
|
return event
|
|
|
|
|
|
def create_input2_event(data):
|
|
uhid_input2_req = struct.pack(INPUT2_REQ_FMT, len(data), data)
|
|
event = pack_event(EVENT_TYPE_INTPUT2, uhid_input2_req)
|
|
return event
|