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hughsie / colord

Making color management just work
GNU General Public License v2.0
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unexpected multicast WS-DISCOVERY traffic on pendrive plug #172

Closed iz4tow closed 4 months ago

iz4tow commented 4 months ago

Good evening, I'm using Ubuntu Desktop 22.04 with colord from official Ubuntu repo last release. Every time I plug a USB device, especially pendrives, I noticed this strange traffic (captured with TCPDUMP):

239.255.255.250 UDP 649 44274 → 3702 Len=607: http://schemas.xmlsoap.org/ws/2005/04/discovery/Probeurn:uuid:d297b7d4-5d58-bbcc-688a-c52c44fd2d61urn:schemas-xmlsoap-org:ws:2005:04:discoverywsdp:Device

Looping ss -u -a -p I discovered that is colord service the originator of this traffic. Here a screen of ss -u -a -p image

Stopping colord service the traffic disappear.

Why colord is sending a WS-DISCOVERY packet when I plug a USB pendrive?

Thanks

hughsie commented 4 months ago

It's SANE doing network discovery of scanners, even though colord is telling it not to. Nothing to do with colord I'm afraid.