mirror of
https://github.com/obgm/libcoap.git
synced 2026-11-13 11:50:40 +03:00
Jon Shallow
469357b824
hashkey.[ch] files restored (now prefixed with coap_) LWIP and Contiki builds now include these files block.[ch]: New function coap_add_data_blocked_response() to simplify GET responses and handle adding in BLOCK2 options as appropriate. Needs coap_hash() to generate ETag option. net.c: Determine if Block2 is in use, and add to coap_add_observer(). resource.[ch]: Include Block2 request in coap_add_observer(). subscribe.h: Include Block2 definition in coap_subscriber_t for using during observe responses. pdu.h: Update comment. coap-client.c: No longer causes duplicate calls to coap_show_pdu() (one in library, one in coap-client for the same PDU). If a block'ed response received and observing, now observing continues. (Fixes #166). Send Observe Cancel with Block2 option if -b defined coap-server.c: Replaced all option setting, data addition etc. with new coap_add_data_blocked_response() function in the GET handlers. (Fixes #246 Issue 2). Support PUT with BLOCK1. (Fixes #246 Issue 1). Add in -N option to send observe responses as non-confirmable. Handle small wait_ms values correctly (after being decremented) for testing whether observe should be triggered or not. Refresh time every second by making COAP_RESOURCE_CHECK_TIME 1 Manuals: Add in new function coap_add_data_blocked_response() Update coap_observe with coap_delete_observer(s) functions Correct example typo and use new function in hnd_get_time(). Add in -N option to coap-server(5) Be more specific about COAP_RESOURCE_FLAGS_NOTIFY_NON and COAP_RESOURCE_FLAGS_NOTIFY_CON usage for observe. Files: Makefile.am Makefile.libcoap examples/client.c examples/coap-server.c examples/lwip/Makefile include/coap/block.h include/coap/coap_hashkey.h include/coap/pdu.h include/coap/resource.h include/coap/subscribe.h libcoap-2.map libcoap-2.sym man/Makefile.am man/coap-server.txt.in man/coap_handler.txt.in man/coap_observe.txt.in man/coap_pdu_setup.txt.in man/coap_resource.txt.in src/block.c src/coap_hashkey.c src/net.c src/resource.c
Example of libcoap running on lwIP
==================================
To run the example, do
$ make
$ sudo ./server
(and in a second terminal)
$ sudo ip a a dev tap0 192.168.113.1/24
and query `coap://192.168.113.2/` with any coap tool.
This will
* download lwip and lwip-contrib from the upstream git sources
* build the server application
* run the server application, creating a virtual network device tap0 (unless
that exists)
* configure your network interface to make the server accessible.
The server creates a resource for 'time' with a query 'ticks'. This is
reported for `.well-known/core`. The work flow for adding more resources does
not differ from regular libcoap usage. If you seem to run out of memory
creating the resources, tweak the number of pre-allocated resources
in `include/coap/lwippools.h`.