CoAP v4.1.1

[JaniSuonpera]

This includes check Entity Too Large check for block1 and request server to resend data with supported block size.

New API to control whether coap itself sends a next GET(block2) request or not
Fixes error IOTCLT-2203 mbed-coap does not handle PUT or POST if they indicate a smaller block size preference

Status

*READY

Migrations

If this PR changes any APIs or behaviors, give a short description of what API users should do when this PR is merged.

NO

[JaniSuonpera]

@yogpan01 @anttiylitokola @teetak01 please review.

[anttiylitokola]

LGTM

[yogpan01]

@JaniSuonpera Please add this to the git commit message for clear description of what this PR fixes

This PR implement https://tools.ietf.org/html/rfc7959#section-2.5
"The error code 4.13 (Request Entity Too Large) can be returned at any
time by a server that does not currently have the resources to store
blocks for a block-wise request payload transfer that it would intend
to implement in an atomic fashion. (Note that a 4.13 response to a
request that does not employ Block1 is a hint for the client to try
sending Block1, and a 4.13 response with a smaller SZX in its Block1
Option than requested is a hint to try a smaller SZX.)

[yogpan01]

@0xc0170 @adbridge FYI

[0xc0170]

PR updated, please review the latest addition

[JaniSuonpera]

There is coming fix. Small regression detected with internal testing.

[JaniSuonpera]

This contains now PR #5865

[anttiylitokola]

@JaniSuonpera, please update the changelog as well.

[0xc0170]

This contains now PR #5865

Can that one be closed and we proceed this one?

[0xc0170]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 897
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/5864/

Triggering tests

/morph test
/morph uvisor-test
/morph export-build

[JaniSuonpera]

I think that we can close PR #5865.

[mbed-ci]

Exporter Build : SUCCESS

Build number : 572
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/5864/

[JaniSuonpera]

Changelog file updated.

[0xc0170]

/morph build

[anttiylitokola]

@0xc0170, When will be the next mbed-os release and can we get this fix included?

[0xc0170]

@0xc0170, When will be the next mbed-os release and can we get this fix included?

The next week. Yes, waiting for CI to be completed

[kegilbert]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 906
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/5864/

Triggering tests

/morph test
/morph uvisor-test
/morph export-build

[mbed-ci]

Exporter Build : SUCCESS

Build number : 581
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/5864/

[mbed-ci]

Test : SUCCESS

Build number : 748
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/5864/748