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fix: handle type assertions safely #268

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merged 1 commit into from
Dec 16, 2024
Merged

fix: handle type assertions safely #268

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18 changes: 14 additions & 4 deletions simue/handler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -181,10 +181,20 @@ func HandleDeregAcceptEvent(ue *simuectx.SimUe,
return nil
}

func HandlePduSessEstRequestEvent(ue *simuectx.SimUe,
intfcMsg common.InterfaceMessage,
) (err error) {
msg := intfcMsg.(*common.UuMessage)
func HandlePduSessEstRequestEvent(ue *simuectx.SimUe, intfcMsg common.InterfaceMessage) (err error) {
// Safe type assertions
if intfcMsg == nil {
err := fmt.Errorf("HandlePduSessEstRequestEvent: intfcMsg is nil")
ue.Log.Errorln(err)
return err
}

msg, ok := intfcMsg.(*common.UuMessage)
if !ok {
err := fmt.Errorf("HandlePduSessEstRequestEvent: expected *common.UuMessage, got %T", intfcMsg)
ue.Log.Errorln(err)
return err
}
msg.Event = common.UL_INFO_TRANSFER_EVENT
SendToGnbUe(ue, msg)
return nil
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