Sending request from smf to amf

Q/A
1

Hello,

I am trying to send a request from smf container to amf using this code but I got 500 null reference point
panic recovered:
amf | runtime error: invalid memory address or nil pointer dereference

Please can anyone help if the json object I am using it is correct.
curl --location --request POST ‘http://amf.free5gc.org:8000/namf-comm/v1/ue-contexts/imsi-208930000000003/n1-n2-messages’
–header ‘Accept: application/json’
–header ‘Content-Type: multipart/related; boundary=“296682a27b6906a337ac09b418a49b569315cf55b3804db921a4cb700e39”’
–data-raw ‘{
“n2InfoContainer”: {
“n2InformationClass”: “SM”,
“smInfo”: {
“pduSessionId”: 1,
“n2InfoContent”: {
“ngapIeType”: “PDU_RES_REL_CMD”,
“ngapData”: {
“contentId”: “N2SmInfo”
}
}
}
},
“pduSessionId”: 1
}’

or this json file

{
“n1MessageContainer”: {
“n1MessageClass”: “SM”,
“n1MessageContent”: {
“contentId”: “N1Msg”
}
},
“n2InfoContainer”: {
“n2InformationClass”: “SM”,
“smInfo”: {
“pduSessionId”: 10,
“n2InfoContent”: {
“ngapIeType”: “PDU_RES_SETUP_REQ”,
“ngapData”: {
“contentId”: “N2SmInfo”
}
},
“sNssai”: {
“sst”: 1,
“sd”: “010203”
}
}
},
“pduSessionId”: 10
}

2

Hi @nathalie21005

Can you share the whole error message ?

3

Hello,

This is the error message I got and 500 response.

image
image1046×330 15.7 KB

4

Hi @nathalie21005,

Did you tried to use content type “application/json” and not the mime “multipart/related” ? (which seems off to me, please see RFC1341(MIME) : 7 The Multipart content type)

5

Hi @abousselmi,

Yes I tried with content-type= application/json, but I got this error message.
{“title”:“Malformed request syntax”,“status”:400,“detail”:"[Request Body] N1 and N2 datas are both Empty in N1N2MessgeTransfer"}

and here is my request:

curl --location --request POST ‘http://amf.free5gc.org:8000/namf-comm/v1/ue-contexts/imsi-208930000000003/n1-n2-messages’
–header ‘Accept: application/json’
–header ‘Content-Type: application/json’
–data-raw ‘{
“n1MessageContainer”: {
“n1MessageClass”: “SM”,
“n1MessageContent”: {
“contentId”: “N1Msg”
},
“nfId”:“1”,
“serviceInstanceId”:“1”
},
“n2InfoContainer”: {
“n2InformationClass”: “SM”,
“smInfo”: {
“pduSessionId”: 10,
“n2InfoContent”: {
“ngapIeType”: “PDU_RES_SETUP_REQ”,
“ngapData”: {
“contentId”: “N2SmInfo”
}
},
“sNssai”: {
“sst”: 1,
“sd”: “010203”
}
}
},
“mtData”:{
“contentId”:“N1Msg”
},
“skipInd”:true,
“pduSessionId”: 10
}’

6

Hi @abousselmi,
Do you have any json sample for this api “/namf-comm/v1/ue-contexts/imsi-208930000000003/n1-n2-messages”?

7

Hi @nathalie21005

Please try to review your structure based on this example that you can find (among others): https://forge.3gpp.org/rep/all/5G_APIs/tree/REL-15

POST /ue-contexts/{ueContextId}/n1-n2-messages

{
      "n1MessageContainer": {
        "n1MessageContent": {
          "contentId": "string"
        },
        "nfId": "string",
        "serviceInstanceId": "string"
      },
      "n2InfoContainer": {
        "smInfo": {
          "pduSessionId": 0,
          "n2InfoContent": {
            "ngapMessageType": 0,
            "ngapData": {
              "contentId": "string"
            }
          },
          "sNssai": {
            "sst": 0,
            "sd": "string"
          },
          "subjectToHo": true
        },
        "ranInfo": {
          "n2InfoContent": {
            "ngapMessageType": 0,
            "ngapData": {
              "contentId": "string"
            }
          }
        },
        "nrppaInfo": {
          "nfId": "string",
          "nrppaPdu": {
            "ngapMessageType": 0,
            "ngapData": {
              "contentId": "string"
            }
          },
          "serviceInstanceId": "string"
        },
        "pwsInfo": {
          "messageIdentifier": 0,
          "serialNumber": 0,
          "pwsContainer": {
            "ngapMessageType": 0,
            "ngapData": {
              "contentId": "string"
            }
          },
          "sendRanResponse": false,
          "omcId": "string"
        }
      },
      "skipInd": false,
      "lastMsgIndication": true,
      "pduSessionId": 0,
      "lcsCorrelationId": "string",
      "ppi": 0,
      "arp": {
        "priorityLevel": 0
      },
      "5qi": 0,
      "n1n2FailureTxfNotifURI": "string",
      "smfReallocationInd": false,
      "areaOfValidity": {
        "taiList": [
          {
            "plmnId": {
              "mcc": "string",
              "mnc": "string"
            },
            "tac": "string"
          }
        ]
      },
      "supportedFeatures": "string",
      "oldGuami": {
        "plmnId": {
          "mcc": "string",
          "mnc": "string"
        },
        "amfId": "string"
      }
    }

I did not tested it.