Opened 5 years ago

Closed 4 years ago

#634 closed Bug / Defect (fixed)

--multihome on IPv6 sockets broken on FreeBSD/sparc64

Reported by: Gert Döring Owned by: Gert Döring
Priority: major Milestone: release 2.4
Component: Generic / unclassified Version: OpenVPN git master branch (Community Ed)
Severity: Not set (select this one, unless your'e a OpenVPN developer) Keywords:
Cc:

Description

No idea whether it's "on FreeBSD in general" or just for FreeBSD/9.3 Sparc64, but that's what I have...

  • client
  • nobind
  • multihome

leads to

Sat Nov 28 20:50:28 2015 TLS: Initial packet from [AF_INET6]2607:fc50:1001:5200::4:51194 (via 2001:608:0:1007:a00:20ff:fefe:4bd2%[undef]), sid=163e0511 9616bdc4
Sat Nov 28 20:50:28 2015 write UDPv6: Invalid argument (code=22)
Sat Nov 28 20:50:28 2015 write UDPv6: Invalid argument (code=22)
Sat Nov 28 20:50:30 2015 write UDPv6: Invalid argument (code=22)
Sat Nov 28 20:50:34 2015 write UDPv6: Invalid argument (code=22)

.. so the actual incoming target address is read correctly, but the scope ID is not set, and either that is confusing the send-out code path, or we just do something wrong with structure alignment / setup there (see also commit 661d914c8732a208580b1eab167255c85da162c, "Repair --multihome for FreeBSD for IPv4 sockets", trac #327)

Change History (1)

comment:1 Changed 4 years ago by Gert Döring

Resolution: fixed
Status: newclosed

commit 3fb246e38fc670c7dfff8ce4521c75c95c766c9e (master)
commit f7aba873ca593eb2ab8a4a358cd6c06ef46a09e1 (release/2.3)
Author: Gert Doering
Date: Sun Oct 9 12:09:29 2016 +0200

Fix --multihome for IPv6 on 64bit BSD systems.

Signed-off-by: Gert Doering <gert@…>
Acked-by: Arne Schwabe <arne@…>
Message-Id: <20161009100929.46472-1-gert@…>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg12626.html

done! (took me long enough, given that I had almost-correct code in 2014...)

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