modify the modification req handler

free5gc / upf

Apache License 2.0

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modify the modification req handler #50

Closed ianchen0119 closed 2 years ago

ianchen0119 commented 2 years ago

UPF PR #47

According to TS 29.244:

6.3.3 PFCP Session Modification Procedure
7.2.2.4.2 Conditions for Sending SEID=0 in PFCP Header

Even if the session hasn't been found when processing the N4 modification request, UPF should send the N4 modification response with cause PFCP_CAUSE_SESSION_CONTEXT_NOT_FOUND and SEID = 0 to SMF still.

ianchen0119 commented 2 years ago

Should do the same check in UpfN4HandleSessionDeletionRequest

Done!

Please help to check when you feel free, Thanks!