A unique Request-Tag is added to any PUT/POST/FETCH request that contains
a large body. The server is then able to differentiate between concurrent
sending of large data using the same session.
If a server responds with a 4.01 and includes an Echo option, then the libcoap
client retransmits the request adding in the received Echo option with the same
value.
If the server responds normally with an Echo option, then the next request
from the libcoap client (internally added by libcoap) will contain that Echo
option.
It is the responsibility of the server application to add in the Echo
option if required and validate the next request unless the Echo is triggered
by OSCORE (RFC8613 Appendix B.1.2).
doc/module_api_wrap.h: New
Used to split modules into Application and Internal only.
include/coap/*.h:
Module (@defgroup) description put into group application_api or internal_api
as appropriate.
Add in @file information if missing.
src/*.c
Add in @file information.
This change adds 'SPDX-License-Identifier: BSD-2-Clause' [1] to
the source code files that originate in the libcoap project.
Note that not all files are tagged because they are pulled in
from other sources and thus may fall under a different license.
More information about these is contained in the LICENSE file.
[1] https://spdx.org/licenses/BSD-2-Clause.html
The original requesting PDU is now kept with the Observe request along with
its data and used whenever an additional response needs to be generated.
Abstracted information from the requesting PDU is no longer kept in
coap_subscription_t as it can be obtained from the kept PDU.
No longer any need to check for request PDU in request handlers as it is now
always provided.
coap_resource_notify_observers() now ignores the query parameter, as a
cache_key is now used for request matching.
Jon Shallow