coap get returns 5.00

[olsky]

hi,

while trying to get/put message via coap receving always 5.00 reply. What am I missing?

coap-client: libcoap
emqx broker version 3 rc1

---

./coap-client -m get -s 100 "coap://127.0.0.1/mqtt/test?c=1&u=admin&p=public" -v 9
Apr 11 10:35:11 DEBG ***127.0.0.1:33665 <-> 127.0.0.1:5683 UDP : new outgoing session
Apr 11 10:35:11 DEBG sending CoAP request:
Apr 11 10:35:11 DEBG * 127.0.0.1:33665 <-> 127.0.0.1:5683 UDP : sent 36 bytes
v:1 t:CON c:GET i:736a {} [ Observe:0, Uri-Path:mqtt, Uri-Path:test, Uri-Query:c=1, Uri-Query:u=admin, Uri-Query:p=public ]
Apr 11 10:35:11 DEBG ** 127.0.0.1:33665 <-> 127.0.0.1:5683 UDP : tid=29546 added to retransmit queue (2313ms)
Apr 11 10:35:11 DEBG timeout is set to 90 seconds
Apr 11 10:35:11 DEBG * 127.0.0.1:33665 <-> 127.0.0.1:5683 UDP : received 4 bytes
v:1 t:ACK c:5.00 i:736a {} [ ]
Apr 11 10:35:11 DEBG ** 127.0.0.1:33665 <-> 127.0.0.1:5683 UDP : tid=29546: removed
Apr 11 10:35:11 DEBG ** process incoming 5.00 response:
5.00
Apr 11 10:35:11 DEBG ***127.0.0.1:33665 <-> 127.0.0.1:5683 UDP : session closed

---

emqx console output:

([email protected])1>
([email protected])1> 2019-04-11 10:35:11.729 [error] 1 ** Generic server <0.1877.0> terminating
** Last message in was {'EXIT',<0.1875.0>,
{{case_clause,ok},
[{emqx_protocol,send,2,
[{file,"src/emqx_protocol.erl"},{line,682}]},
{emqx_coap_mqtt_adapter,proto_init,5,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,258}]},
{emqx_coap_mqtt_adapter,init,1,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,120}]},
{gen_server,init_it,2,
[{file,"gen_server.erl"},{line,374}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,342}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,249}]}]}}
** When Server state == {state,30000,true,#Fun<emqx_session.1.64839632>,
<<"1">>,<<"admin">>,undefined,undefined,1,0,
#{},false,
{emqx_inflight,65535,{0,nil}},
0,undefined,
{mqueue,true,1000,0,0,none,0,{queue,[],[],0}},
#{},undefined,undefined,undefined,0,undefined,
true,undefined,undefined,
{1554,971711,726113},
undefined,undefined}
** Reason for termination ==
** {{case_clause,ok},
[{emqx_protocol,send,2,[{file,"src/emqx_protocol.erl"},{line,682}]},
{emqx_coap_mqtt_adapter,proto_init,5,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,258}]},
{emqx_coap_mqtt_adapter,init,1,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,120}]},
{gen_server,init_it,2,[{file,"gen_server.erl"},{line,374}]},
{gen_server,init_it,6,[{file,"gen_server.erl"},{line,342}]},
{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,249}]}]}

---

log output:

2019-04-11 12:47:32.747 [error] 1 crasher:
initial call: emqx_coap_mqtt_adapter:init/1
pid: <0.3599.0>
registered_name: []
exception error: no case clause matching ok
in function emqx_protocol:send/2 (src/emqx_protocol.erl, line 682)
in call from emqx_coap_mqtt_adapter:proto_init/5 (src/emqx_coap_mqtt_adapter.erl, line 258)
in call from emqx_coap_mqtt_adapter:init/1 (src/emqx_coap_mqtt_adapter.erl, line 120)
in call from gen_server:init_it/2 (gen_server.erl, line 374)
in call from gen_server:init_it/6 (gen_server.erl, line 342)
ancestors: [<0.3598.0>,<0.3596.0>,<0.3595.0>,<0.1721.0>,coap_server,
<0.1718.0>]
message_queue_len: 1
messages: [{keepalive,start,90}]
links: [<0.3601.0>]
dictionary: [{'$logger_metadata$',#{client_id => <<"1">>}},
{guid,{1554979652747166,268555715087887,0}}]
trap_exit: false
status: running
heap_size: 2586
stack_size: 27
reductions: 2357
neighbours:
2019-04-11 12:47:32.750 [error] 1 ** Generic server <0.3601.0> terminating
** Last message in was {'EXIT',<0.3599.0>,
{{case_clause,ok},
[{emqx_protocol,send,2,
[{file,"src/emqx_protocol.erl"},{line,682}]},
{emqx_coap_mqtt_adapter,proto_init,5,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,258}]},
{emqx_coap_mqtt_adapter,init,1,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,120}]},
{gen_server,init_it,2,
[{file,"gen_server.erl"},{line,374}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,342}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,249}]}]}}
** When Server state == {state,30000,true,#Fun<emqx_session.1.64839632>,
<<"1">>,<<"admin">>,undefined,undefined,1,0,
#{},false,
{emqx_inflight,65535,{0,nil}},
0,undefined,
{mqueue,true,1000,0,0,none,0,{queue,[],[],0}},
#{},undefined,undefined,undefined,0,undefined,
true,undefined,undefined,
{1554,979652,746745},
undefined,undefined}
** Reason for termination ==
** {{case_clause,ok},
[{emqx_protocol,send,2,[{file,"src/emqx_protocol.erl"},{line,682}]},
{emqx_coap_mqtt_adapter,proto_init,5,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,258}]},
{emqx_coap_mqtt_adapter,init,1,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,120}]},
{gen_server,init_it,2,[{file,"gen_server.erl"},{line,374}]},
{gen_server,init_it,6,[{file,"gen_server.erl"},{line,342}]},
{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,249}]}]}
2019-04-11 12:47:32.762 [error] 1 crasher:
initial call: emqx_session:init/1
pid: <0.3601.0>
registered_name: []
exception exit: {{case_clause,ok},
[{emqx_protocol,send,2,
[{file,"src/emqx_protocol.erl"},{line,682}]},
{emqx_coap_mqtt_adapter,proto_init,5,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,258}]},
{emqx_coap_mqtt_adapter,init,1,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,120}]},
{gen_server,init_it,2,
[{file,"gen_server.erl"},{line,374}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,342}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,249}]}]}
in function gen_server:handle_common_reply/8 (gen_server.erl, line 751)
ancestors: [emqx_session_sup,emqx_sm_sup,emqx_sup,<0.1382.0>]
message_queue_len: 0
messages: []
links: [<0.1650.0>]
dictionary: [{'$logger_metadata$',#{client_id => <<"1">>}}]
trap_exit: true
status: running
heap_size: 10958
stack_size: 27
reductions: 353733
neighbours:

---

more emqx_auth_clientid.conf
##--------------------------------------------------------------------

ClientId Authentication Plugin

##--------------------------------------------------------------------

Examples

auth.client.1.clientid = 1
auth.client.1.password = public

Password hash.

Value: plain | md5 | sha | sha256

auth.client.password_hash = sha256

---

Thanks!

[olsky]

here is more input with log level set to debug...

1. start emqx broker with console:

bin/emqx/console

2. subscribe to test topic

mosquitto_sub -t "test" -v

3. post coap with:

./coap-client -m post -e "qos=0&retain=0&message=payload&topic=test" "coap://127.0.0.1/mqtt?c=coco&p=public&u=admin" -v 9

---

./coap-client -m post -e "qos=0&retain=0&message=payload&topic=test" "coap://127.0.0.1/mqtt?c=coco&p=public&u=admin" -v 9
Apr 15 11:55:41 DEBG ***127.0.0.1:60179 <-> 127.0.0.1:5683 UDP : new outgoing session
Apr 15 11:55:41 DEBG sending CoAP request:
Apr 15 11:55:41 DEBG * 127.0.0.1:60179 <-> 127.0.0.1:5683 UDP : sent 75 bytes
v:1 t:CON c:POST i:736a {} [ Uri-Path:mqtt, Uri-Query:c=coco, Uri-Query:p=public, Uri-Query:u=admin ] :: 'qos=0&retain=0&message=payload&topic=test'
Apr 15 11:55:41 DEBG ** 127.0.0.1:60179 <-> 127.0.0.1:5683 UDP : tid=29546 added to retransmit queue (2313ms)
Apr 15 11:55:41 DEBG timeout is set to 90 seconds
Apr 15 11:55:41 DEBG * 127.0.0.1:60179 <-> 127.0.0.1:5683 UDP : received 4 bytes
v:1 t:ACK c:5.00 i:736a {} [ ]
Apr 15 11:55:41 DEBG ** 127.0.0.1:60179 <-> 127.0.0.1:5683 UDP : tid=29546: removed
Apr 15 11:55:41 DEBG ** process incoming 5.00 response:
5.00
Apr 15 11:55:41 DEBG ***127.0.0.1:60179 <-> 127.0.0.1:5683 UDP : session closed

---

---

console output:
2019-04-15 11:59:06.759 [debug] CoAP-RES: coap_get() Path=[], Query=[<<"c=coco">>,<<"p=public">>,
<<"u=admin">>]
2019-04-15 11:59:06.760 [debug] CoAP-MQTT: try to start adapter ClientId=<<"coco">>, Username=<<"admin">>, Password=<<"public">>, Channel={{127,
0,
0,
1},
33541}
2019-04-15 11:59:06.764 [debug] [Protocol] RECV CONNECT(Q0, R0, D0, ClientId=coco, ProtoName=MQTT, ProtoVsn=4, CleanStart=true, KeepAlive=120, Username=admin, Password=******)
2019-04-15 11:59:06.765 [debug] coco [RuleEngine] Client(coco) connected, connack: 0, conn_attrs:[{zone,undefined},
{client_id,
<<"coco">>},
{username,
<<"admin">>},
{peername,
{{127,0,0,1},
33541}},
{peercert,nossl},
{proto_ver,4},
{proto_name,
<<"MQTT">>},
{clean_start,
true},
{keepalive,120},
{is_bridge,false},
{connected_at,
{1555,322346,
764751}},
{conn_mod,
undefined},
{credentials,
#{auth_result =>
success,
client_id =>
<<"coco">>,
mountpoint =>
undefined,
peername =>
{{127,0,0,1},
33541},
username =>
<<"admin">>,
zone =>
undefined}}]
2019-04-15 11:59:06.777 [error] coco ** Generic server <0.1837.0> terminating
** Last message in was {'EXIT',<0.1835.0>,
{{case_clause,ok},
[{emqx_protocol,send,2,
[{file,"src/emqx_protocol.erl"},{line,682}]},
{emqx_coap_mqtt_adapter,proto_init,5,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,258}]},
{emqx_coap_mqtt_adapter,init,1,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,120}]},
{gen_server,init_it,2,
[{file,"gen_server.erl"},{line,374}]},
{gen_server,init_it,6,
[{file,"gen_server.erl"},{line,342}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,249}]}]}}
** When Server state == {state,30000,true,#Fun<emqx_session.1.64839632>,
<<"coco">>,<<"admin">>,undefined,undefined,1,0,
#{},false,
{emqx_inflight,65535,{0,nil}},
0,undefined,
{mqueue,true,1000,0,0,none,0,{queue,[],[],0}},
#{},undefined,undefined,undefined,0,undefined,
true,undefined,undefined,
{1555,322346,764970},
undefined,undefined}
** Reason for termination ==
** {{case_clause,ok},
[{emqx_protocol,send,2,[{file,"src/emqx_protocol.erl"},{line,682}]},
{emqx_coap_mqtt_adapter,proto_init,5,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,258}]},
{emqx_coap_mqtt_adapter,init,1,
[{file,"src/emqx_coap_mqtt_adapter.erl"},
{line,120}]},
{gen_server,init_it,2,[{file,"gen_server.erl"},{line,374}]},
{gen_server,init_it,6,[{file,"gen_server.erl"},{line,342}]},
{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,249}]}]}

---