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DMR NAT Function Added 

There is concern about the maximum available DMR RadioID space. Just
like running out of IPv4 on the Internet, I created an evil DMR NAT
function.
This commit is contained in:
Cort Buffington 2013-10-21 10:40:29 -05:00
parent 45618999a1
commit 800969bb39
1 changed files with 39 additions and 0 deletions
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39
ipsc.py
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@ -20,6 +20,7 @@ import hashlib
import socket
import csv
import time
import re
#************************************************
# IMPORTING OTHER FILES - '#include'
@ -61,6 +62,35 @@ except ImportError:
# PARSE THE CONFIG FILE AND BUILD STRUCTURE
#************************************************
'''
***LINKING STATUS: Byte 6***
Byte 1 - BIT FLAGS:
xx.. .... = Peer Operational (01 only known valid value)
..xx .... = Peer MODE: 00 - No Radio, 01 - Analog, 10 - Digital
.... xx.. = IPSC Slot 1: 10 on, 01 off
.... ..xx = IPSC Slot 2: 10 on, 01 off
***SERVICE FLAGS: Bytes 7-10 (or 7-12)***
Byte 1 - 0x00 = Unknown
Byte 2 - 0x00 = Unknown
Byte 3 - BIT FLAGS:
x... .... = CSBK Message
.x.. .... = Repeater Call Monitoring
..x. .... = 3rd Party "Console" Application
...x xxxx = Unknown - default to 0
Byte 4 = BIT FLAGS:
x... .... = XNL Connected (1=true)
.x.. .... = XNL Master Device
..x. .... = XNL Slave Device
...x .... = Set if packets are authenticated
.... x... = Set if data calls are supported
.... .x.. = Set if voice calls are supported
.... ..x. = Unknown - default to 0
.... ...x = Set if master
'''
ACTIVE_CALLS = []
NETWORK = {}
@ -255,6 +285,15 @@ def unknown_message(_network, _packettype, _data):
# UTILITY FUNCTIONS FOR INTERNAL USE
#************************************************
# Re-Write Source Radio-ID (DMR NAT)
#
def dmr_nat(_data, _nat_id):
# _log = logger.warning
src_radio_id = _data[6:9]
_data = re.sub(src_radio_id, _nat_id, _data)
# _log('DMR NAT: Source %s re-written as %s', int(binascii.b2a_hex(src_radio_id), 16), int(binascii.b2a_hex(_nat_id), 16))
return _data
# Lookup text data for numeric IDs
#
def get_info(_id):