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utils.py: Support IPv4 decoding for Address TLV object present in EF.ePDGId and EF.ePDGIdEm 

Change-Id: I96c30c1fcc03e50c55e9db7e6a18297a3b1d889d
This commit is contained in:
Supreeth Herle 2020-03-25 14:52:46 +01:00 committed by herlesupreeth
parent 654eca72c9
commit 43fd03b627
1 changed files with 7 additions and 1 deletions
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pySim/utils.py
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@ -530,12 +530,18 @@ def dec_addr_tlv(hexstr):
# First byte in the value has the address type
addr_type = tlv[2][0]
# TODO: Support parsing of IPv4 and IPv6
# TODO: Support parsing of IPv6
# Address Type: 0x00 (FQDN), 0x01 (IPv4), 0x02 (IPv6), other (Reserved)
if addr_type == 0x00: #FQDN
# Skip address tye byte i.e. first byte in value list
content = tlv[2][1:]
s += "\t%s # %s\n" % (i2h(content), i2s(content))
elif addr_type == 0x01: #IPv4
# Skip address tye byte i.e. first byte in value list
# Skip the unused byte in Octect 4 after address type byte as per 3GPP TS 31.102
ipv4 = tlv[2][2:]
content = '.'.join(str(x) for x in ipv4)
s += "\t%s # %s\n" % (i2h(ipv4), content)
return s