serve large message

[huytn]

Hi,
I faced an issue is coap server responses large message (>1024bytes) over blockwise transfer but client only get 1024 bytes first. I used libcoap as client.

How to client get full data?

Here is client output

./coap-client -v 8 -m GET -o test01.der coap://localhost:5688/crts
Jul 28 18:16:23.688 DEBG ***[::1]:59146 <-> [::1]:5688 UDP : session 0x7fda05d045b0: created outgoing session
Jul 28 18:16:23.688 DEBG timeout is set to 90 seconds
Jul 28 18:16:23.688 DEBG sending CoAP request:
Jul 28 18:16:23.688 DEBG *  [::1]:59146 <-> [::1]:5688 UDP : sent 23 bytes
v:1 t:CON c:GET i:17e3 {01} [ Uri-Host:localhost, Uri-Port:5688, Uri-Path:crts ]
Jul 28 18:16:23.688 DEBG ** [::1]:59146 <-> [::1]:5688 UDP : mid=0x17e3: added to retransmit queue (3000ms)
Jul 28 18:16:24.948 DEBG *  [::1]:59146 <-> [::1]:5688 UDP : received 1037 bytes
v:1 t:CON c:2.31 i:53ca {01} [ Content-Format:application/octet-stream, Block2:0/M/1024, Size2:1471 ] :: binary data length 1024
<<data>>
<<data>>
Jul 28 18:16:24.949 DEBG ** [::1]:59146 <-> [::1]:5688 UDP : mid=0x17e3: removed 5
Jul 28 18:16:24.949 DEBG ** [::1]:59146 <-> [::1]:5688 UDP : large body receive internal issue
Jul 28 18:16:24.949 DEBG *  [::1]:59146 <-> [::1]:5688 UDP : sent 4 bytes
v:1 t:ACK c:0.00 i:53ca {} [ ]
Jul 28 18:16:24.950 DEBG *  [::1]:59146 <-> [::1]:5688 UDP : received 4 bytes
v:1 t:ACK c:0.00 i:17e3 {} [ ]
Jul 28 18:17:53.690 INFO timeout
Jul 28 18:17:53.691 DEBG ***[::1]:59146 <-> [::1]:5688 UDP : session 0x7fda05d045b0: closed

Thanks

[Jozef Kralik]

Hi. Could you use it with the token? v2 current use the token for matching in BW transfer. (BW without token will be fixed in some minor update of v3)

[huytn]

There could be an issue with libcoap. I fixed this issue.
Thanks