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Jon Shallow
54d52221ba
As COAP_NACK_RST is used for 1. ICMP Port Unreachable message is received 2. CoAP reply RST message. there needs to be a way to differentiate between these conditions. If there is detected to be an ICMP response issue to sending a UDP packet, report this as COAP_NACK_ICMP_ISSUE instead of COAP_NACK_RST. If the reported issue to coap_session_disconnected() is COAP_NACK_ICMP_ISSUE, then make sure that the packet (plain or DTLS) gets re-transmitted. As hinted in #131 discussion, retry of the packet should be attempted, (as per https://tools.ietf.org/html/rfc7252#section-4.2 ICMP Unreachable) this fix will cause the plain packet to get retransmitted up to the maximum retry count if type CON. Likewise, DTLS will get restarted up to the maximum retry count if type CON. examples/client.c: Include COAP_NACK_ICMP_ISSUE in the nack_handler. include/coap2/coap_io.h: Add in COAP_NACK_ICMP_ISSUE to coap_nack_reason_t. src/coap_session.c: Update coap_session_disconnected() so that plain/DTLS can restart. src/net.c: Fix coap_wait_ack() to exponentially back off the re-transmit times. Update coap_read_session() to report COAP_NACK_ICMP_ISSUE instead of COAP_NACK_RST. man/coap_handler.txt.in: Update documentation
This README documents the test cases supported for the 1st ETSI CoAP plugtest on March 24/25 in Paris, France. <http://www.etsi.org/plugtests/coap/coap.htm> Legend: [+] full support [o] partial support [-] no support [?] needs check [ ] has open issues Mandatory Tests [+] TD_COAP_CORE_01 Perform GET transaction (CON mode) [+] TD_COAP_CORE_02 Perform POST transaction (CON mode) [+] TD_COAP_CORE_03 Perform PUT transaction (CON mode) [+] TD_COAP_CORE_04 Perform DELETE transaction (CON mode) [+] TD_COAP_CORE_05 Perform GET transaction (NON mode) [+] TD_COAP_CORE_06 Perform POST transaction (NON mode) [+] TD_COAP_CORE_07 Perform PUT transaction (NON mode) [+] TD_COAP_CORE_08 Perform DELETE transaction (NON mode) [+] TD_COAP_CORE_09 Perform GET transaction with delayed response (CON mode, no piggyback) [+] TD_COAP_CORE_10 Handle request containing Token option [+] TD_COAP_CORE_11 Handle request not containing Token option [+] TD_COAP_CORE_12 Handle request containing several Uri-Path options [+] TD_COAP_CORE_13 Handle request containing several Uri-Query options [?] TD_COAP_CORE_14 Interoperate in lossy context (CON mode, piggybacked response) [?] TD_COAP_CORE_15 Interoperate in lossy context (CON mode, delayed response) Optional Tests [ ] TD_COAP_LINK_01 Access to well-known interface for resource discovery [-] TD_COAP_LINK_02 Use filtered requests for limiting discovery results [+] TD_COAP_BLOCK_01 Handle GET blockwise transfer for large resource (early negotiation) [+] TD_COAP_BLOCK_02 Handle GET blockwise transfer for large resource (late negotiation) [-] TD_COAP_BLOCK_03 Handle PUT blockwise transfer for large resource [-] TD_COAP_BLOCK_04 Handle POST blockwise transfer for large resource [-] TD_COAP_OBS_01 Handle resource observation [-] TD_COAP_OBS_02 Stop resource observation [-] TD_COAP_OBS_03 Client detection of deregistration (Max-Age) [-] TD_COAP_OBS_04 Server detection of deregistration (client OFF) [-] TD_COAP_OBS_05 Server detection of deregistration (explicit RST)