Node responds 5.00 Internal Server Error, to Discover Operation

[sblabreu]

Testing the Discover operation resulted in an 5.00 Internal Server Error back from LwM2M Client Node to Server.

Note the discover operation is sent at the first registration of the client to the server.
Using version 1.2.2

No. Time Source Destination Protocol Length Info
501 39.708465844 192.168.42.148 104.40.191.33 CoAP 162 CON, MID:19569, POST, TKN:71 4c 84 f8, /rd?lwm2m=1.0&ep=advanbox_4&b=U&lt=300

Frame 501: 162 bytes on wire (1296 bits), 162 bytes captured (1296 bits) on interface 0
Linux cooked capture
Internet Protocol Version 4, Src: 192.168.42.148, Dst: 104.40.191.33
User Datagram Protocol, Src Port: 56830, Dst Port: 5684
Datagram Transport Layer Security
Constrained Application Protocol, Confirmable, POST, MID:19569
01.. .... = Version: 1
..00 .... = Type: Confirmable (0)
.... 0100 = Token Length: 4
Code: POST (2)
Message ID: 19569
Token: 714c84f8
Opt Name: #1: Uri-Path: rd
Opt Desc: Type 11, Critical, Unsafe
1011 .... = Opt Delta: 11
.... 0010 = Opt Length: 2
Uri-Path: rd
Opt Name: #2: Content-Format: application/link-format
Opt Desc: Type 12, Elective, Safe
0001 .... = Opt Delta: 1
.... 0001 = Opt Length: 1
Content-type: application/link-format
Opt Name: #3: Uri-Query: lwm2m=1.0
Opt Desc: Type 15, Critical, Unsafe
0011 .... = Opt Delta: 3
.... 1001 = Opt Length: 9
Uri-Query: lwm2m=1.0
Opt Name: #4: Uri-Query: ep=advanbox_4
Opt Desc: Type 15, Critical, Unsafe
0000 .... = Opt Delta: 0
.... 1101 = Opt Length: 13
Opt Length extended: 0
Uri-Query: ep=advanbox_4
Opt Name: #5: Uri-Query: b=U
Opt Desc: Type 15, Critical, Unsafe
0000 .... = Opt Delta: 0
.... 0011 = Opt Length: 3
Uri-Query: b=U
Opt Name: #6: Uri-Query: lt=300
Opt Desc: Type 15, Critical, Unsafe
0000 .... = Opt Delta: 0
.... 0110 = Opt Length: 6
Uri-Query: lt=300
End of options marker: 255
[Response In: 503]
[Uri-Path: /rd]
Payload: Payload Content-Format: application/link-format, Length: 39
Payload Desc: application/link-format
[Payload Length: 39]

No. Time Source Destination Protocol Length Info
503 39.743594320 104.40.191.33 192.168.42.148 CoAP 95 ACK, MID:19569, 2.01 Created, TKN:71 4c 84 f8, /rd

Frame 503: 95 bytes on wire (760 bits), 95 bytes captured (760 bits) on interface 0
Linux cooked capture
Internet Protocol Version 4, Src: 104.40.191.33, Dst: 192.168.42.148
User Datagram Protocol, Src Port: 5684, Dst Port: 56830
Datagram Transport Layer Security
Constrained Application Protocol, Acknowledgement, 2.01 Created, MID:19569
01.. .... = Version: 1
..10 .... = Type: Acknowledgement (2)
.... 0100 = Token Length: 4
Code: 2.01 Created (65)
Message ID: 19569
Token: 714c84f8
Opt Name: #1: Location-Path: rd
Opt Desc: Type 8, Elective, Safe
1000 .... = Opt Delta: 8
.... 0010 = Opt Length: 2
Location-Path: rd
Opt Name: #2: Location-Path: konDlzlj8H
Opt Desc: Type 8, Elective, Safe
0000 .... = Opt Delta: 0
.... 1010 = Opt Length: 10
Location-Path: konDlzlj8H
[Request In: 501]
[Response Time: 0.035128476 seconds]
[Uri-Path: /rd]

No. Time Source Destination Protocol Length Info
540 41.350836808 104.40.191.33 192.168.42.148 CoAP 89 CON, MID:31299, GET, TKN:f8 ad 46 86 05 3d 93 5d, /2

Frame 540: 89 bytes on wire (712 bits), 89 bytes captured (712 bits) on interface 0
Linux cooked capture
Internet Protocol Version 4, Src: 104.40.191.33, Dst: 192.168.42.148
User Datagram Protocol, Src Port: 5684, Dst Port: 56830
Datagram Transport Layer Security
Constrained Application Protocol, Confirmable, GET, MID:31299
01.. .... = Version: 1
..00 .... = Type: Confirmable (0)
.... 1000 = Token Length: 8
Code: GET (1)
Message ID: 31299
Token: f8ad4686053d935d
Opt Name: #1: Uri-Path: 2
Opt Desc: Type 11, Critical, Unsafe
1011 .... = Opt Delta: 11
.... 0001 = Opt Length: 1
Uri-Path: 2
Opt Name: #2: Accept: application/link-format
Opt Desc: Type 17, Critical, Safe
0110 .... = Opt Delta: 6
.... 0001 = Opt Length: 1
Accept: application/link-format
[Response In: 541]
[Uri-Path: /2]

No. Time Source Destination Protocol Length Info
541 41.355687283 192.168.42.148 104.40.191.33 CoAP 85 ACK, MID:31299, 5.00 Internal Server Error, TKN:f8 ad 46 86 05 3d 93 5d, /2

Frame 541: 85 bytes on wire (680 bits), 85 bytes captured (680 bits) on interface 0
Linux cooked capture
Internet Protocol Version 4, Src: 192.168.42.148, Dst: 104.40.191.33
User Datagram Protocol, Src Port: 56830, Dst Port: 5684
Datagram Transport Layer Security
Constrained Application Protocol, Acknowledgement, 5.00 Internal Server Error, MID:31299
01.. .... = Version: 1
..10 .... = Type: Acknowledgement (2)
.... 1000 = Token Length: 8
Code: 5.00 Internal Server Error (160)
Message ID: 31299
Token: f8ad4686053d935d
[Request In: 540]
[Response Time: 0.004850475 seconds]
[Uri-Path: /2]

No. Time Source Destination Protocol Length Info
542 41.382412523 104.40.191.33 192.168.42.148 CoAP 89 CON, MID:31300, GET, TKN:e8 67 47 d2 65 37 ee f5, /3

Frame 542: 89 bytes on wire (712 bits), 89 bytes captured (712 bits) on interface 0
Linux cooked capture
Internet Protocol Version 4, Src: 104.40.191.33, Dst: 192.168.42.148
User Datagram Protocol, Src Port: 5684, Dst Port: 56830
Datagram Transport Layer Security
Constrained Application Protocol, Confirmable, GET, MID:31300
01.. .... = Version: 1
..00 .... = Type: Confirmable (0)
.... 1000 = Token Length: 8
Code: GET (1)
Message ID: 31300
Token: e86747d26537eef5
Opt Name: #1: Uri-Path: 3
Opt Desc: Type 11, Critical, Unsafe
1011 .... = Opt Delta: 11
.... 0001 = Opt Length: 1
Uri-Path: 3
Opt Name: #2: Accept: application/link-format
Opt Desc: Type 17, Critical, Safe
0110 .... = Opt Delta: 6
.... 0001 = Opt Length: 1
Accept: application/link-format
[Response In: 543]
[Uri-Path: /3]

No. Time Source Destination Protocol Length Info
543 41.383624198 192.168.42.148 104.40.191.33 CoAP 85 ACK, MID:31300, 5.00 Internal Server Error, TKN:e8 67 47 d2 65 37 ee f5, /3

Frame 543: 85 bytes on wire (680 bits), 85 bytes captured (680 bits) on interface 0
Linux cooked capture
Internet Protocol Version 4, Src: 192.168.42.148, Dst: 104.40.191.33
User Datagram Protocol, Src Port: 56830, Dst Port: 5684
Datagram Transport Layer Security
Constrained Application Protocol, Acknowledgement, 5.00 Internal Server Error, MID:31300
01.. .... = Version: 1
..10 .... = Type: Acknowledgement (2)
.... 1000 = Token Length: 8
Code: 5.00 Internal Server Error (160)
Message ID: 31300
Token: e86747d26537eef5
[Request In: 542]
[Response Time: 0.001211675 seconds]
[Uri-Path: /3]

[dbaba]

Thanks. I fixed it. I include the fix in the next release, which comes within a week.