class ULI_TAI(gtp_v1.IE_Base):
name = "IE Tracking Area Identity"
fields_desc = [ # Only type 1 is currently supported
gtp_v1.TBCDByteField("MCC", "", 2),
# MNC: if the third digit of MCC is 0xf, then the length of
# MNC is 1 byte
gtp_v1.TBCDByteField("MNC", "", 1),
ShortField("TAC", 0)]
class IE_ServingNetwork(gtp_v1.IE_Base):
name = "IE Serving Network"
fields_desc = [ByteEnumField("ietype", 154, IEType),
ShortField("length", 0),
BitField("CR_flag", 0, 4),
BitField("instance", 0, 4),
gtp_v1.TBCDByteField("MCC", "", 2),
gtp_v1.TBCDByteField("MNC", "", 1)]
class ULI_ECGI(gtp_v1.IE_Base):
name = "IE E-UTRAN Cell Identifier"
fields_desc = [ # Only type 1 is currently supported
gtp_v1.TBCDByteField("MCC", "", 2),
# MNC: if the third digit of MCC is 0xf, then the length of
# MNC is 1 byte
gtp_v1.TBCDByteField("MNC", "", 1),
BitField("SPARE", 0, 4),
BitField("ECI", 0, 28)]
class IE_MSISDN(gtp_v1.IE_Base):
name = "IE MSISDN"
fields_desc = [ByteEnumField("ietype", 1, IEType),
ShortField("length", None),
BitField("CR_flag", 0, 4),
BitField("instance", 0, 4),
gtp_v1.TBCDByteField("digits", "33607080910", length_from=lambda x: x.length)]