Jon Shallow 23b3e6e17e Add in coap_new_client_session_psk2 and coap_context_set_psk2 functions ...

This fix is in preparation for the full coap_new_client_session_psk2()
and coap_context_set_psk2() functions.  Structures are updated with the
necessary information, as well as provide the high level support.

As new sessions are now created for every genuine incoming session (#333),
coap_context_t will only hold the initial information provided by
coap_context_set_psk2() (server mode), but if there is any updated
(triggered by SNI or Indentity), this will be kept in coap_session_t.

Likewise, the client initial information will be kept in the
coap_session_t, and if modified (triggered by Hint) will be kept separately
in coap_session_t.

This change does not include the support required in the DTLS interface modules
other than changes required to make the code compilable and still run the
existing examples - so it is a standalone change.

Makefile.am:

Make coap_dtls_context_set_cpsk, coap_dtls_context_set_spsk,
coap_session_refresh_psk_key and coap_session_refresh_psk_hint hidden
Remove coap_dtls_context_set_psk

include/coap2/*.h:

Replace call-back with callback for consistency

include/coap2/coap_dtls.h:

Include coap_dtls_cpsk_key_t and coap_dtls_spsk_key_t definitions
Define coap_dtls_spsk_key_t for the new coap_*_psk2 functions.
Include all the new call back function definitions

include/coap2/coap_session.h:

Update coap_session_t with the new PSK information
Define coap_new_client_session_psk2(), coap_session_refresh_psk_key() and
coap_session_refresh_psk_hint() functions

include/coap2/net.h:

Update coap_context_t with the new PSK information
Define the coap_context_set_psk2() function

include/coap2/str.h:

Add in a new struct coap_bin_const_t
Define new functions coap_new_bin_const(), coap_delete_bin_const()
and coap_binary_equal().

libcoap-2.{map|sym}

Expose the new coap_context_set_psk2, coap_new_client_session_psk2,
coap_new_bin_const and coap_delete_bin_const functions

src/coap_gnutls.c:
src/coap_notls.c:
src/coap_tinydtls.c:

Replace coap_dtls_context_set_psk() with coap_dtls_context_set_spsk()
and coap_dtls_context_set_cpsk()

src/coap_openssl.c:

Replace coap_dtls_context_set_psk() with coap_dtls_context_set_spsk()
and coap_dtls_context_set_cpsk()
Update the SSL_CTX_use* and SSL_set_* functions with the new variable
locations

src/coap_session.c:

Free off new information on coap_session_t in coap_session_mfree()

Build parameters for coap_new_client_session_psk2() in
coap_new_client_session_psk() and call coap_new_client_session_psk2() instead
of coap_session_create_client().
Create new coap_new_client_session_psk2().
Create new coap_session_refresh_psk_key() (will be used when DTLS interface
code is updated

src/net.c:

Update coap_get_session_client_psk() to use the new PSK locations.
Update coap_get_session_server_psk() to use the new PSK locations.
Update coap_get_session_server_hint() to use the new PSK locations.
Build parameters for coap_context_set_psk2() in
coap_context_set_psk() and call coap_context_set_psk2().
Create new coap_context_set_psk2().
Cleanup usage of old PSK information in coap_free_context()

src/str.c:

Code for coap_new_bin_const() and coap_delete_bin_const() functions

2019-12-03 14:46:26 +00:00

..

coap2

Add in coap_new_client_session_psk2 and coap_context_set_psk2 functions

2019-12-03 14:46:26 +00:00