bin/49303: sshd in -current fails due to umac on big endian ARM

[martin%NetBSD.org@localhost]

>Number:         49303
>Category:       bin
>Synopsis:       sshd in -current fails due to umac on big endian ARM
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Oct 22 07:00:00 +0000 2014
>Originator:     Martin Husemann
>Release:        NetBSD 7.99.1
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD space-truckin.duskware.de 7.99.1 NetBSD 7.99.1 (CUBIETRUCK) #17: Tue Oct 21 19:53:07 CEST 2014 martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/evbarm/compile/CUBIETRUCK evbarm
Architecture: earmv7hfeb
Machine: evbarm
>Description:

With the recent openssh import, the umac family of MACs has been enabled again,
and partly been fixed. However, it still consistently fails on first try
when ssh'ing into a big endian ARM machine.

Adding

MACs    hmac-sha2-256-etm%openssh.com@localhost,hmac-sha2-512-etm%openssh.com@localhost,hmac-sha2-25
6,hmac-sha2-512,hmac-sha1-96

to /etc/ssh/sshd_config works around it (this is the default minus all
umac variants plus the last entry added, which was necessary to allow
a netbsd-7 box to connect to this machine).

>How-To-Repeat:
s/a

>Fix:
n/a