help using mount_smbfs with apple time capsule server
Rick Macklem
rmacklem at uoguelph.ca
Sun Dec 28 23:12:09 UTC 2014
Kirk Russell wrote:
> Hi,
>
> I cannot get FreeBSD 10's smbfs client to work with my server -- an
> Apple time
> capsule 4th generation version 7.6.4.
>
> Here are the commands I ran, to reproduce the issue:
> # uname -a
> FreeBSD 10.1-RELEASE FreeBSD 10.1-RELEASE #0 r274401: Tue Nov 11
> 21:02:49 UTC 2014
> root at releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64
> # mount_smbfs -R 16 //lamb at Meganium/Data /mnt
> Password:
> # dd if=/mnt/afile bs=1 count=1 of=/dev/null
> dd: /mnt/afile: No such file or directory
>
> For the FreeBSD 10 session, I tried to capture the raw packets, using
> tcpdump,
> in file bad.tcpdump.
>
>
> This works with FreeBSD 9. For this working session, I tried to
> capture the
> raw packets, using tcpdump, in file good.tcpdump.
>
> # uname -a
> FreeBSD 9.3-STABLE FreeBSD 9.3-STABLE #0: Wed Dec 24 16:16:05 EST
> 2014 kirk at freenas:/usr/obj/usr/src/sys/GENERIC amd64
> # mount_smbfs -R 16 //lamb at Meganium/Data /mnt
> Password:
> # dd if=/mnt/afile bs=1 count=1 of=/dev/null
> 1+0 records in
> 1+0 records out
> 1 bytes transferred in 0.000345 secs (2899 bytes/sec)
>
>
> The two raw packets dumps are in this archive:
> http://www.employees.org/~kirk/bstgbugs/smbfs.tar.gz
>
> Any pointers how to get his working?
> The server appears to be returning an ERRbadpath error.
>
Well, my guess is that it has something to do with the Unicode
changes added to smbfs about three years ago by kevlo@ (r227650
and friends in head). These changes are not in FreeBSD9.
It appears that it now sends "\\afile" instead of "\afile" and
I know nothing about the code/protocol but r227650 added changes
like:
error = mb_put_uint8(mbp, '\\');
replaced with:
if (SMB_UNICODE_STRINGS(vcp))
error = mb_put_uint16le(mbp, '\\')
else
error = mb_put_uint8(mbp, '\\');
Note that the '\\' is actually 4 \ characters.
Hopefully someone knows enough about Unicode or how SMB
uses it to make sense of this?
rick
> --
> Kirk Russell <kirk at ba23.org>
> http://www.ba23.org/
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