Skip to content

ME Identity Check

API reference for diameter.message.commands.me_identity_check.

This module contains ME Identity Check Request and Answer messages for the S13 interface, implementing AVPs documented in 3GPP TS 29.272.

MeIdentityCheck 

MeIdentityCheck(header: MessageHeader = None, avps: list[Avp] = None)

Bases: DefinedMessage

An ME-Identity-Check base message.

This message class lists message attributes based on the current 3GPP TS 29.272 version 19.4.0 Release 19 as python properties, accessible as instance attributes. AVPs not listed in the spec protocol can be retrieved using the MeIdentityCheck.find_avps search method.

Examples:

AVPs accessible either as instance attributes or by searching:

>>> msg = Message.from_bytes(b"...")
>>> msg.session_id
dra1.python-diameter.org;2323;546
>>> msg.find_avps((AVP_SESSION_ID, 0))
['dra1.python-diameter.org;2323;546']

When diameter message is decoded using Message.from_bytes, it returns either an instance of MeIdentityCheckRequest or MeIdentityCheckAnswer automatically:

>>> msg = Message.from_bytes(b"...")
>>> assert msg.header.is_request is True
>>> assert isinstance(msg, MeIdentityCheckRequest)

When creating a new message, the MeIdentityCheckRequest or MeIdentityCheckAnswer class should be instantiated directly, and values for AVPs set as class attributes:

>>> msg = MeIdentityCheckRequest()
>>> msg.session_id = "dra1.python-diameter.org;2323;546"

Other, custom AVPs can be appended to the message using the MeIdentityCheck.append_avp method, or by overwriting the avp attribute entirely. Regardless of the custom AVPs set, the mandatory values listed in TS 29.272 must be set, however they can be set as None, if they are not to be used.

Warning

Every AVP documented for the subclasses of this command can be accessed as an instance attribute, even if the original network-received message did not contain that specific AVP. Such AVPs will be returned with the value None when accessed.

Every other AVP not mentioned here, and not present in a network-received message will raise an AttributeError when being accessed; their presence should be validated with hasattr before accessing.

MeIdentityCheckAnswer 

MeIdentityCheckAnswer(
    header: MessageHeader = None, avps: list[Avp] = None
)

Bases: MeIdentityCheck

A ME-Identity-Check-Answer message.

3GPP TS 29.272 version 19.4.0

auth_session_state instance-attribute 

auth_session_state: int

drmp instance-attribute 

drmp: int

equipment_status instance-attribute 

equipment_status: int

experimental_result instance-attribute 

experimental_result: ExperimentalResult

failed_avp instance-attribute 

failed_avp: list[FailedAvp]

origin_host instance-attribute 

origin_host: bytes

origin_realm instance-attribute 

origin_realm: bytes

proxy_info instance-attribute 

proxy_info: list[ProxyInfo]

result_code instance-attribute 

result_code: int

route_record instance-attribute 

route_record: list[bytes]

session_id instance-attribute 

session_id: str

vendor_specific_application_id instance-attribute 

vendor_specific_application_id: VendorSpecificApplicationId

MeIdentityCheckRequest 

MeIdentityCheckRequest(
    header: MessageHeader = None, avps: list[Avp] = None
)

Bases: MeIdentityCheck

A ME-Identity-Check-Request message.

3GPP TS 29.272 version 19.4.0

auth_session_state instance-attribute 

auth_session_state: int

destination_host instance-attribute 

destination_host: bytes

destination_realm instance-attribute 

destination_realm: bytes

drmp instance-attribute 

drmp: int

origin_host instance-attribute 

origin_host: bytes

origin_realm instance-attribute 

origin_realm: bytes

proxy_info instance-attribute 

proxy_info: list[ProxyInfo]

route_record instance-attribute 

route_record: list[bytes]

session_id instance-attribute 

session_id: str

terminal_information instance-attribute 

terminal_information: TerminalInformation

user_name instance-attribute 

user_name: str

vendor_specific_application_id instance-attribute 

vendor_specific_application_id: VendorSpecificApplicationId