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

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Change-Id: Id46a44257d09c98ad5e0b7558e25e2bc52b23978
This commit is contained in:
Supreeth Herle
2020-03-25 14:25:38 +01:00
committed by herlesupreeth
parent 4779034f9e
commit 654eca72c9
1 changed files with 11 additions and 2 deletions
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13
pySim/utils.py
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@@ -550,10 +550,19 @@ def enc_addr_tlv(addr, addr_type='00'):
s = ""
# TODO: Encoding of IPv4 and IPv6 address
if addr_type == '00':
# TODO: Encoding of IPv6 address
if addr_type == '00': #FQDN
hex_str = s2h(addr)
s += '80' + ('%02x' % ((len(hex_str)//2)+1)) + '00' + hex_str
elif addr_type == '01': #IPv4
ipv4_list = addr.split('.')
ipv4_str = ""
for i in ipv4_list:
ipv4_str += ('%02x' % (int(i)))
# Unused bytes shall be set to 'ff'. i.e 4th Octet after Address Type is not used
# IPv4 Address is in octet 5 to octet 8 of the TLV data object
s += '80' + ('%02x' % ((len(ipv4_str)//2)+2)) + '01' + 'ff' + ipv4_str
return s