Unable to handle prefixed xml values (e.g. yang leaf of type identityref)

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Start netopeer (we have tested this against the netconf server in netopeer).
2. Connect from cmd: ssh root@localhost -p 1831 -s netconf
3. Send hello:
<hello xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
        <capabilities>
            <capability>urn:ietf:params:netconf:base:1.0</capability>
        </capabilities>
    </hello>
]]>]]>
4. Send get-schema RPC:
<rpc message-id="m-3" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
<get-schema xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring">
<identifier>toaster</identifier>
<version>2009-11-20</version>
<format 
xmlns:x="urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring">x:yang</format>
</get-schema>
</rpc>
]]>]]>


What is the expected output? What do you see instead?

Netopeer responds to this with:
<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="m-3">
  <rpc-error xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
    <error-type>protocol</error-type>
    <error-tag>invalid-value</error-tag>
    <error-severity>error</error-severity>
    <error-message>The requested schema does not exist.</error-message>
  </rpc-error>
</rpc-reply>

But if we try get-schema in slightly different format (notice the leaf 
"format"):
<rpc message-id="m-3" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
<get-schema xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring">
<identifier>toaster</identifier>
<version>2009-11-20</version>
<format>yang</format>
</get-schema>
</rpc>]]>]]>
Netopeer responds with correct rpc-reply. But it should be able to handle both 
formats, since they are correct. Not sure if this affects only get-schema or 
every other prefixed XML value.


What version of the product are you using? On what operating system?
We used Ubuntu 14 VM with netopeer running inside a docker container with the 
latest available image 
(https://registry.hub.docker.com/u/dockeruser/netopeer/dockerfile/)

Please provide any additional information below.
The workaround with non-prefixed value was pointed out by netopeer developers.

Original issue reported on code.google.com by maros.m...@gmail.com on 10 Jun 2015 at 2:37

[GoogleCodeExporter]

We are working on libyang as a replacement for libxml2 used in libnetconf. It 
should solve the problem in future.

Original comment by rkre...@cesnet.cz on 10 Jun 2015 at 7:31

• Changed state: WontFix

[GoogleCodeExporter]

Changing status to keep the issue visible. Anyway, we don't plan to fix the 
issue in the current libnetconf version.

Original comment by rkre...@cesnet.cz on 10 Jun 2015 at 7:34

• Changed state: Accepted