Hi, thanks for the explanation, I recently created a Jira ticket on this topic: 
 https://jira.iotivity.org/browse/IOT-2186.

From: iotivity-dev-bounces at lists.iotivity.org 
[mailto:[email protected]] On Behalf Of ???
Sent: Tuesday, May 9, 2017 5:14 PM
To: Heldt-Sheller, Nathan <nathan.heldt-sheller at intel.com>; Harish Kumara 
Marappa <h.marappa at samsung.com>; iotivity-dev at lists.iotivity.org
Subject: Re: [dev] Is OCResource::host() returns valid host for secured 
resource ?


Hi, All.

See my coment in below thanks.



what I want to point out here is Host address of secured resource is showing 
different address which is not even in the endpoints list.

I think Host address supposed to be one of endpoints, right ?



Because of this application layer has to set secure resource's host with one of 
secure endpoints before using it.




=> Normal host address  isn`t one of endpoints, normal host address is parsed 
from coap packet header.

     And endpoins infomation is just additional address except current host 
address.

     In more detail, endpoints is additional address infomation which is 
accessible from current client network(which discovery reqeust sent), so 
endpoints list doesn`t include current host address,



Because of this application layer has to set secure resource's host with one of 
secure endpoints before using it.

=> It seems to right, but as i mentioned above basically host address showing 
address where it from.

    And you can change current host of found resource using setHost() which is 
member function of OCResource class.



Perhaps one of the ?eps? (Endpoint list) code authors can give a definitive 
answer, but in my estimation, this isn?t a problem.  The Host address  may be 
just the CoAP address from which the /res response was sent, but if the 
Resource doesn?t expose an Unsecured Endpoint it would only have Secure ?ep? 
entries in its ?eps?.

Again just my take; I?m not the Endpoint feature expert by any means.


The Host address  may be just the CoAP address from which the /res response was 
sent,

=> Definitely right.

but if the Resource doesn?t expose an Unsecured Endpoint it would only have 
Secure ?ep? entries in its ?eps?.

=> Right, in simpleserver.cpp createResource() create resource with OC_SECURE 
flag, so when client found that resource, response payload has only secured 
endpoins like below.

       List of resource endpoints:
                coaps://107.108.81.118:48100
                coaps+tcp://107.108.81.118:37259



Thanks you.



--------- Original Message ---------

Sender : Heldt-Sheller, Nathan <nathan.heldt-sheller at 
intel.com<mailto:nathan.heldt-sheller at intel.com>>

Date : 2017-05-10 00:52 (GMT+9)

Title : Re: [dev] Is OCResource::host() returns valid host for secured resource 
?


Perhaps one of the ?eps? (Endpoint list) code authors can give a definitive 
answer, but in my estimation, this isn?t a problem.  The Host address  may be 
just the CoAP address from which the /res response was sent, but if the 
Resource doesn?t expose an Unsecured Endpoint it would only have Secure ?ep? 
entries in its ?eps?.

Again just my take; I?m not the Endpoint feature expert by any means.

Thanks,
Nathan

From: iotivity-dev-bounces at lists.iotivity.org<mailto:iotivity-dev-bounces at 
lists.iotivity.org> [mailto:[email protected]] On Behalf 
Of Harish Kumara Marappa
Sent: Tuesday, May 9, 2017 6:49 AM
To: iotivity-dev at lists.iotivity.org<mailto:iotivity-dev at 
lists.iotivity.org>
Subject: [dev] Is OCResource::host() returns valid host for secured resource ?


Hi All,



I have query on host information of a resource discovered through C++ API 
OCPlatform::findResource.

Below are the logs I got at simpleclient application while simpleserver ran 
with option 2 (./simpleserver 2). [Note IoTivity is built with security enabled 
(SECURED=1)]



==============================================

Found resource 85a4724e-452e-ca53-1b39-0565cfcaa097/a/light for the first time 
on server with ID: 85a4724e-452e-ca53-1b39-0565cfcaa097
DISCOVERED Resource:
        URI of the resource: /a/light
        Host address of the resource: coap://107.108.81.118:58991
        List of resource types:
                core.light
                core.brightlight
        List of resource interfaces:
                oic.if.baseline
                oic.if.ll
        Host of resource:
                coap://107.108.81.118:58991
        List of resource endpoints:
                coaps://107.108.81.118:48100
                coaps+tcp://107.108.81.118:37259
        Change host of resource endpoints
                Current host is coaps://107.108.81.118:48100
        Address of selected resource: coaps://107.108.81.118:48100
=============================================



what I want to point out here is Host address of secured resource is showing 
different address which is not even in the endpoints list.

I think Host address supposed to be one of endpoints, right ?



Because of this application layer has to set secure resource's host with one of 
secure endpoints before using it.





Regards,

Harish Kumara M



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