def parse_hytera_data(bytedata):
if len(bytedata) < 2:
# probably just heartbeat response
return IpSiteConnectHeartbeat.from_bytes(bytedata)
elif bytedata[0:2] == bytes([0x32, 0x42]):
# HSTRP
return HyteraSimpleTransportReliabilityProtocol.from_bytes(bytedata)
elif bytedata[0:1] == bytes([0x7E]):
# HRNP
return HyteraRadioNetworkProtocol.from_bytes(bytedata)
elif (int.from_bytes(bytedata[0:1], byteorder="big") & 0x80) == 0x80 and (
int.from_bytes(bytedata[0:1], byteorder="big") & 0xC0) == 2:
rtsp = RealTimeTransportProtocol.from_bytes(bytedata)
if rtsp.fixed_header.padding:
print("{0}={1}".format(
col256(rtsp.__class__.__name__, bg="001", fg="345"),
col256(str(_prettyprint(rtsp)), "352"),
))
print("RTSP %s has padding bytes")
exit(1)
return rtsp
elif (int.from_bytes(bytedata[0:8], byteorder="little") == 0
or bytedata[0:4] == b"ZZZZ"
or bytedata[20:22] == bytes([0x11, 0x11])):
if bytedata[5:9] == bytes([0x00, 0x00, 0x00, 0x14]):
return IpSiteConnectHeartbeat.from_bytes(bytedata)
else:
return IpSiteConnectProtocol.from_bytes(bytedata)
else:
# HDAP
return HyteraDmrApplicationProtocol.from_bytes(bytedata)
def parse_hytera_data(bytedata: bytes) -> KaitaiStruct:
if len(bytedata) < 2:
# probably just heartbeat response
return IpSiteConnectHeartbeat.from_bytes(bytedata)
elif bytedata[0:2] == bytes([0x32, 0x42]):
# HSTRP
return HyteraSimpleTransportReliabilityProtocol.from_bytes(bytedata)
elif bytedata[0:1] == bytes([0x7E]):
# HRNP
return HyteraRadioNetworkProtocol.from_bytes(bytedata)
elif (int.from_bytes(bytedata[0:1], byteorder="big") & 0x80) == 0x80 and (
int.from_bytes(bytedata[0:1], byteorder="big") & 0xC0) == 2:
rtsp = RealTimeTransportProtocol.from_bytes(bytedata)
return rtsp
elif (int.from_bytes(bytedata[0:8], byteorder="little") == 0
or bytedata[0:4] == b"ZZZZ" or bytedata[20]
== bytedata[21] # color code shall be same in both bytes
):
if bytedata[5:9] == bytes([0x00, 0x00, 0x00, 0x14]):
return IpSiteConnectHeartbeat.from_bytes(bytedata)
else:
return IpSiteConnectProtocol.from_bytes(bytedata)
else:
# HDAP
return HyteraDmrApplicationProtocol.from_bytes(bytedata)
#!/usr/bin/env python3
import os
import sys
try:
import hytera_homebrew_bridge
except ImportError:
sys.path.append(
os.path.dirname(
os.path.dirname(os.path.dirname(os.path.realpath(__file__)))))
from hytera_homebrew_bridge.tests.prettyprint import prettyprint
from hytera_homebrew_bridge.kaitai.hytera_dmr_application_protocol import (
HyteraDmrApplicationProtocol, )
if __name__ == "__main__":
if len(sys.argv) < 2:
print("use as %s <hexstring>" % sys.argv[0])
exit(0)
packet = HyteraDmrApplicationProtocol.from_bytes(bytes.fromhex(
sys.argv[1]))
print(packet)
print(packet.message_type)
prettyprint(packet)