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Bug 777069 - GSocket does not work on Windows with IP expressed as RFC5952
GSocket does not work on Windows with IP expressed as RFC5952
Status: RESOLVED OBSOLETE
Product: glib
Classification: Platform
Component: gio
unspecified
Other Windows
: Normal normal
: ---
Assigned To: gtkdev
gtkdev
Depends on:
Blocks:
 
 
Reported: 2017-01-10 00:24 UTC by Nicola
Modified: 2018-05-24 19:21 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Nicola 2017-01-10 00:24:10 UTC 
Please try this pipeline

gst-launch-1.0 videotestsrc ! rtpvrawpay ! udpsink host="::ffff:192.168.10.220"

as you can see the host is an IPv4-Mapped IPv6 addresses, this pipeline works fine on linux but not on windows,

The problem is probably in glib and not in udpsink itself, anyway I have a workaround for my app and actually no time to investigate further
Comment 1 Sebastian Dröge (slomo) 2017-01-10 15:05:07 UTC 
How does it fail on Windows?
Comment 2 Nicola 2017-01-10 15:10:19 UTC 
(In reply to Sebastian Dröge (slomo) from comment #1)
> How does it fail on Windows?

wireshark show that no packet is sended, changing the ip to 192.168.10.220 wireshark show udp traffic, 

sorry no time to take gst logs now, I'm on deadline
Comment 3 Sebastian Dröge (slomo) 2017-01-10 15:12:50 UTC 
Maybe Windows does not support RFC5952 then? The IPv6 is just passed as is to an IPv6 socket, nothing special happens there.
Comment 4 Sebastian Dröge (slomo) 2017-01-10 15:25:10 UTC 
Reassigning to GLib as we don't do anything special here. Just g_inet_address_new_from_string() and then using that with a normal GSocket that was created with the same address family as the returned GInetAddress.
Comment 5 Nicola 2017-01-10 15:31:31 UTC 
It fails here

https://cgit.freedesktop.org/gstreamer/gst-plugins-good/tree/gst/udp/gstmultiudpsink.c#n718

gst_multiudpsink_send_messages (): /GstPipeline:pipeline0/GstUDPSink:udpsink0:
client ::ffff:192.168.10.220:5004, reason: Error sending message: Indirizzo richiesto non valido nel proprio contesto.

the localized error string in english is something like this

"Required Address not valid in its context"
Comment 6 GNOME Infrastructure Team 2018-05-24 19:21:51 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to GNOME's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.gnome.org/GNOME/glib/issues/1235.