[libnice] nice_interfaces_get_local_ips() returns nothing on Windows

[Adrien Carbonne]

Hello,

I would be glad to help!

I compiled using MSVC (Visual C++ 2010 Express).

Here is what I get when debug messages are enabled:

** (test.exe:9672): DEBUG: Using stun server '[stun.l.google.com]:19302'


> ** (test.exe:9672): DEBUG: Created NiceStream (1 created, 0 destroyed)

** (test.exe:9672): DEBUG: Created NiceComponent (1 created, 0 destroyed)

** (test.exe:9672): DEBUG: Agent 00AA9010 : allocating stream id 1
> (00AB31C0)

** (test.exe:9672): DEBUG: Agent 00AA9010 : In ICE-FULL mode, starting
> candidate gathering.

** (test.exe:9672): DEBUG: Agent 00AA9010 : libnice compiled without UPnP
> support

** (test.exe:9672): DEBUG: Queried addresses with status 0.

** (test.exe:9672): DEBUG: Interface ‘Connexion au r\xe9seau local’:

** (test.exe:9672): DEBUG: Rejecting interface due to being down or
> read-only.

** (test.exe:9672): DEBUG: Interface ‘Connexion au r\xe9seau local* 4’:

** (test.exe:9672): DEBUG: Rejecting interface due to being down or
> read-only.

** (test.exe:9672): DEBUG: Interface ‘Ethernet’:

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Ethernet’.

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Ethernet’.

** (test.exe:9672): DEBUG: Interface ‘Ethernet 2’:

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Ethernet 2’.

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Ethernet 2’.

** (test.exe:9672): DEBUG: Interface ‘Connexion r\xe9seau sans fil’:

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Connexion r\xe9seau sans fil’.

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Connexion r\xe9seau sans fil’.

** (test.exe:9672): DEBUG: Interface ‘Loopback Pseudo-Interface 1’:

** (test.exe:9672): DEBUG: Rejecting loopback interface ‘Loopback
> Pseudo-Interface 1’.

** (test.exe:9672): DEBUG: Interface
> ‘isatap.{C66F6F69-5A07-481B-88C6-963A69AC1202}’:

** (test.exe:9672): DEBUG: Rejecting interface due to being down or
> read-only.

** (test.exe:9672): DEBUG: Interface
> ‘isatap.{F44E089F-E5CC-43A2-BD76-A07FEB4FBD13}’:

** (test.exe:9672): DEBUG: Rejecting interface due to being down or
> read-only.

** (test.exe:9672): DEBUG: Interface
> ‘isatap.{D581D457-EF0D-443D-A62C-2867E5225AFE}’:

** (test.exe:9672): DEBUG: Rejecting interface due to being down or
> read-only.

** (test.exe:9672): DEBUG: Interface
> ‘isatap.{4F7EEF12-75C9-4DE7-A263-48898503A707}’:

** (test.exe:9672): DEBUG: Rejecting interface due to being down or
> read-only.

** (test.exe:9672): DEBUG: Interface
> ‘isatap.{59A0B365-4F00-45E7-8B96-3DEF08201D36}’:

** (test.exe:9672): DEBUG: Rejecting interface due to being down or
> read-only.

** (test.exe:9672): DEBUG: Agent 00AA9010: Candidate gathering FINISHED, no
> scheduled items.

** (test.exe:9672): DEBUG: SIGNAL candidate gathering done


> ** (test.exe:9672): DEBUG: waiting for candidate-gathering-done signal...



This interface is my Wi-Fi connection to Internet:

** (test.exe:9672): DEBUG: Interface ‘Connexion r\xe9seau sans fil’:

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Connexion r\xe9seau sans fil’.

** (test.exe:9672): DEBUG: Failed to convert address to string for
> interface ‘Connexion r\xe9seau sans fil’.


Does this debug message help you?

Thank you very much for your help,
Adrien

On Fri, Dec 4, 2015 at 1:01 AM, Philip Withnall <philip at tecnocode.co.uk>
wrote:

> Hi,
>
> On Wed, 2015-12-02 at 14:53 +0100, Adrien Carbonne wrote:
> > Hello,
> >
> > I have compiled libnice on Windows but I cannot get *any* example to
> > work.
>
> How did you compile it? MinGW, or MSVC?
>
> > I have tried to debug it, and I found out that one issue is that
> > nice_interfaces_get_local_ips() returns nothing on Windows.
>
> If you enable all debugging output (G_MESSAGES_DEBUG=all NICE_DEBUG=all
> in the environment), do you get debug messages like “Error retrieving
> local addresses (error code XX).”?
>
> For debugging to work, you must also have configured libnice
> //without// NDEBUG defined. The normal libnice.vcproj file //does//
> define NDEBUG, so make sure you unconfigure that.
>
> > Here is a sample program : it should display some candidates but gets
> > no candidates (and no local addresses for that matter).
> >
> >
> > int main() {
> >       context = g_main_context_new ();
> >       loop = g_main_loop_new ( context , FALSE );
> >       NiceAgent *agent = nice_agent_new ( context ,
> > NICE_COMPATIBILITY_RFC5245 );
> >
> >       g_signal_connect (G_OBJECT (agent), "candidate-gathering-done",
> > G_CALLBACK (candidate_gathering_done_cb), NULL);
> >       g_signal_connect (G_OBJECT (agent), "component-state-changed",
> > G_CALLBACK (component_state_changed_cb), NULL);
> >       g_signal_connect (G_OBJECT (agent), "new-candidate-full",
> > G_CALLBACK (new_candidate_full_cb), NULL);
> >
> >       guint stream_id = nice_agent_add_stream ( agent , 1);
> >       nice_agent_attach_recv ( agent , stream_id , 1 , context ,
> > cb_nice_recv , NULL );
> >       nice_agent_gather_candidates ( agent , stream_id );
> >
> >       g_main_loop_run ( loop );
> > }
> >
> > Is it a Windows-specific issue?
>
> Most likely, since the code for nice_interfaces_get_local_ips() is
> highly platform specific.
>
> > Do I have to stop dreaming about running libnice on Windows? ;)
>
> Sorry, I don’t have regular access to a Windows machine to test libnice
> on. All help is welcome!
>
> Philip
> _______________________________________________
> nice mailing list
> nice at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nice
>
>
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