Control: found -1 3.2.101-1 Control: tag -1 upstream fixed-upstream patch On Mon, 2018-05-07 at 09:49 +0200, Fred Boiteux wrote: > Package: src:linux > Version: 3.16.56-1 > Severity: normal > > Dear Maintainer, > > With latest Debian Jessie Linux kernel (3.16.56-1) version, > my SCTP application, which uses an IPv6 socket to get IPv4 or IPv6 messages, > can retrieve anymore IPv4 addresses from peers, using sctp_getpaddrs() > function. > > I've identified the impacting patch :r > sctp: Fixup v4mapped behaviour to comply with Sock API > > I've rebuilt a kernel with this patch reverted, and my application works > well with > > I retrieve IPv4 peer addresses in a IPv6-mapped format, like : > 0x00: 0A 00 A5 B8 C0 A8 FE B2 00 00 00 00 ............ > 0x0C: 00 00 00 00 00 00 FF FF C0 A8 FE B2 ............ > 0x18: 30 3B C0 1F 0;.. > which means : ::ffff:192.168.254.178%532691760 -> 192.168.254.178
Note that the flowinfo and scope_id were garbage here.
> But with the latest Jessie kernel, i get :
> 0x00: 0A 00 A5 B8 00 00 00 00 00 00 00 00 ............
> 0x0C: 00 00 00 00 00 00 FF FF 00 00 00 00 ............
> 0x18: 00 00 00 00 ....
> which translates to : ::ffff:0.0.0.0
>
>
> I've stated the same bug with latest Debian Wheezy kernel
> (linux-image-3.2.0-6-amd64 package, 3.2.101-1 version) :
> I don't know if i should add a separate bug report ?
[...]
No need; the bug tracking system can handle multiple versions.
It looks like this was fixed upstream by:
commit 9302d7bb0c5cd46be5706859301f18c137b2439f
Author: Jason Gunthorpe <jguntho...@obsidianresearch.com>
Date: Tue May 26 17:30:17 2015 -0600
sctp: Fix mangled IPv4 addresses on a IPv6 listening socket
and I should apply that fix as well.
Ben.
--
Ben Hutchings
Life is what happens to you while you're busy making other plans.
- John Lennon
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