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mobile: provides a switch in parse_SCCP to not parse SCMG specific messages

This commit is contained in:
mich 2019-02-19 11:28:09 +01:00
parent 545db11710
commit 42dfcb89fb
1 changed files with 13 additions and 12 deletions
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25
pycrate_mobile/SCCP.py
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@ -1414,7 +1414,7 @@ def get_scmg_msg_instances():
# SCPP Message parser
#------------------------------------------------------------------------------#
def parse_SCCP(buf):
def parse_SCCP(buf, w_scmg=True):
"""Parses an SCCP message bytes' buffer
Args:
@ -1444,17 +1444,18 @@ def parse_SCCP(buf):
return None, 2
#
# if SCMG, parses it further (UDT/XUDT/LUDT, ProtocolClass 0, both addresses on SSN 1)
try:
if Msg[0].get_val() in (9, 17, 19) and Msg[1][1].get_val() == 0 and \
Msg[3][1][0]['RoutingInd'].get_val() == 1 and Msg[3][1][0]['SSNInd'].get_val() == 1 and Msg[3][1]['SSN'].get_val() == 1 and \
Msg[4][1][0]['RoutingInd'].get_val() == 1 and Msg[4][1][0]['SSNInd'].get_val() == 1 and Msg[4][1]['SSN'].get_val() == 1:
data = Msg[5]
dataval = data[1]
scmg, err = parse_SCMG(dataval.get_val())
if err == 0:
data.replace(dataval, scmg)
except:
pass
if w_scmg:
try:
if Msg[0].get_val() in (9, 17, 19) and Msg[1][1].get_val() == 0 and \
Msg[3][1][0]['RoutingInd'].get_val() == 1 and Msg[3][1][0]['SSNInd'].get_val() == 1 and Msg[3][1]['SSN'].get_val() == 1 and \
Msg[4][1][0]['RoutingInd'].get_val() == 1 and Msg[4][1][0]['SSNInd'].get_val() == 1 and Msg[4][1]['SSN'].get_val() == 1:
data = Msg[5]
dataval = data[1]
scmg, err = parse_SCMG(dataval.get_val())
if err == 0:
data.replace(dataval, scmg)
except:
pass
#
return Msg, 0