Server enabled for mcast receipt. When the server is acting as a proxy
sends a mcast packet out over a slave client type socket, it receives
the mcast packet on the server socket (which could then be forward out
of the client socket....).
This change prevents the server socket from passing up the libcoap stack
a mcast packet that it knows the client socket is sending.
./autogen.sh and ./configure no longer need to be run prior to running
make for Contiki, LwIP or RIOT from the appropriate examples sub-directory.
scripts/fix_version.sh now handles updating coap.h for the different
LIBCOAP_ and PACKAGE_ definitions.
Group together and document the run-time checks available for checking
the libcoap built-in functionality based on the ./cconfigure and / or
CMakeLists.txt options.
Create include/coap3/coap_defines.h file that contains a list of
COAP_ #defines created from the options defined when running ./configure
or cmake.
Add additional coap_*_is_supported() functions.
Tidy up the general proxy logic by moving common functionality
into libcoap.
New functions coap_proxy_forward_request(), coap_proxy_forward_response()
and coap_proxy_is_supported() added.
New --enable-proxy-code support added to configure.
New ENABLE_PROXY_CODE support added to CMakeLists.txt.
Support for common shared connection to next hop.
Support for round-robin balancing across multiple next hops.
Only support changing the client's source port if the DTLS library
has support / configured for CID.
Used when debugging server handling source address changes and CID
is in use.
Add in support for TinyDTLS (Client only) if TinyDTLS is patched
appropriately (not currently available on TinyDTLS main branch).
Add in new function coap_dtls_cid_is_supported().
'make distclean' removes header files built from the .in files, which
means that they are not available for different OS builds.
The same is true for CMakeLists.txt.
Remove the need for the .in files and update for libcoap revisions
by using a new script scripts/fix_version.sh created from
scripts/fix_version.sh.in.
CI has been updated to check revisions have been updated in the
appropriate places.
Do not remove libcoap-3.sym and libcoap-3.map when doing 'make distclean'
as they are git tracked files.
Support of RFC9146. Currently only Mbed TLS supported.
New function coap_context_set_cid_tuple_change() for a client to
force periodic source port changes to test out CID.
Configurable support for the client to use Connection-ID
assuming underlying DTLS library is configured for or supports it.
If a proxy reads in a packet via coap_read_endpoint, which then
invokes an ongoing proxy TCP connection, while waiting for the CSM
response of the new session, coap_read_endpoint would get invoked
again if there is any data to read on any of the listening endpoints..
With a Constrained Stack, the read in data is protected by mutex
m_read_enpoint - which is still locked when trying to wait for the
CSM.
As the code is either single threaded, or protected by global_lock
if multi-threaded, there is no need to maintain mutexes such as
m_read_endpoint. This PR removes these not needed mutexes.
Do not call coap_free_context() from within sigint handler.
Always call coap_io_process().
Use sys_arch_sem_wait() for timeouts while waiting for input.
When context is de-allocated, other threads can still access the
context lock held within context. Indicating being freed when
coap_free_context() was called worked in most cases, but not all.
Recursive lock issues happen for some of the app callbacks that then call a
libcoap public API that tries to lock up the CoAP context.
All libcoap callbacks into app code should now be fixed.
TLS1.3 is enabled by default in 3.6.0. This PR fixes the supported
encryption algorithms as well as handling a new session ticket
indication for coaps+tcp://.
However, if client certificates are not defined, then MbedTLS fails with
no certificate CA, even if the CA Cert is presented along with the Server
Cert during the processing of the server certificate and fails with
"SSL - No CA Chain is set, but required to operate"
when coaps+tcp:// is used.
Workaround (with examples/coap-client) is to set the -R options (when the
-c option is not set), or to programmatically call
coap_context_set_pki_root_cas();
Create new options coap_uri_into_optlist(), coap_path_into_optlist() and
coap_query_into_optlist() to be used instead of coap_uri_into_options(),
coap_split_path() and coap_split_query() functions so the requirement
for a scratch buffer is not needed.
Getting the minimum size for a scratch buffer is not straight forward and
potential for unexpected boundary condition errors to occurif too small.
Correct parsing and stripping out of "%2E%2E" ("..") and "%2E" (".")
path segments. ".." now removes the previous segment (if it exists).
Update documentation and unit testcases.
Update examples to use new options.
Set up lg_crcv if separate ACK response received for a coap_send() CON
request to be able to handle Block2 responses.
Handle Block1 request getting back a Block2 request that has an initial
separate response once the Block1 has completed by adjusting the stateless
token counter.
Separate response is typical for proxy support (OSCORE previously handled)..
Mario Kicherer