class ULI_TAI(gtp.IE_Base):
name = "IE Tracking Area Identity"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1),
ShortField("TAC", 0)
]
class ULI_LAI(ULI_Field):
name = "Location Area Identifier"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1),
ShortField("LAC", 0),
]
class ULI_TAI(ULI_Field):
name = "Tracking Area Identity"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1),
ShortField("TAC", 0),
]
class ULI_ECGI(gtp.IE_Base):
name = "IE E-UTRAN Cell Identifier"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1),
BitField("SPARE", 0, 4),
BitField("ECI", 0, 28)]
class ULI_ECGI(ULI_Field):
name = "E-UTRAN Cell Global Identifier"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1),
BitField("SPARE", 0, 4),
BitField("ECI", 0, 28),
]
class ULI_SAI(ULI_Field):
name = "Service Area Identity"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1),
ShortField("LAC", 0),
ShortField("SAC", 0),
]
class ULI_CGI(ULI_Field):
name = "Cell Global Identifier"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1),
BitField("LAC", 0, 4),
BitField("CI", 0, 28),
]
class IE_ServingNetwork(gtp.IE_Base):
name = "IE Serving Network"
fields_desc = [ByteEnumField("ietype", 83, IEType),
ShortField("length", 0),
BitField("CR_flag", 0, 4),
BitField("instance", 0, 4),
gtp.TBCDByteField("MCC", "", 2),
gtp.TBCDByteField("MNC", "", 1)]
class ULI_RAI(gtp.IE_Base):
name = "IE Tracking Area Identity"
fields_desc = [
gtp.TBCDByteField("MCC", "", 2),
# MNC: if the third digit of MCC is 0xf, then the length of
# MNC is 1 byte
gtp.TBCDByteField("MNC", "", 1),
ShortField("LAC", 0),
ShortField("RAC", 0)]
class IE_MSISDN(gtp.IE_Base):
name = "IE MSISDN"
fields_desc = [ByteEnumField("ietype", 76, IEType),
ShortField("length", None),
BitField("CR_flag", 0, 4),
BitField("instance", 0, 4),
gtp.TBCDByteField("digits", "33123456789",
length_from=lambda x: x.length)]
class IE_IMSI(gtp.IE_Base):
name = "IE IMSI"
fields_desc = [ByteEnumField("ietype", 1, IEType),
ShortField("length", None),
BitField("CR_flag", 0, 4),
BitField("instance", 0, 4),
gtp.TBCDByteField("IMSI", "33607080910",
length_from=lambda x: x.length)]
class IE_MSISDN(gtp.IE_Base):
name = "IE MSISDN"
fields_desc = [
ByteEnumField("ietype", 76, IEType),
FieldLenField("length",
None,
length_of="digits",
adjust=lambda pkt, x: x + 4,
fmt="H"),
BitField("CR_flag", 0, 4),
BitField("instance", 0, 4),
gtp.TBCDByteField("digits",
"33123456789",
length_from=lambda x: x.length)
]
