[Pkg-samba-maint] Bug#778639: cifs-utils: Extra slash included when using prefixpath with mount, leads to bad path

[Chris Herdt]

Package: cifs-utils
Version: 2:5.5-1
Severity: important

Dear Maintainer,

Also see http://unix.stackexchange.com/questions/164037/mount-cifs-error2-no-such-file-or-directory-when-using-a-prefixpath
for a description of this issue.

A path that was previously mounted stopped working.
Both the following returned an error:
mount -t cifs //server/share /mnt/directory -o credentials=/path/to/cifs.credentials,prefixpath=directory --verbose
mount -t cifs //server/share/directory /mnt/directory -o credentials=/path/to/cifs.credentials --verbose

The response/error message is:
mount.cifs kernel mount options: ip=<IP of server>,unc=\\server \share,user=<username>,prefixpath=directory,pass=********
mount error(2): No such file or directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) 

I verified that it was a valid path by mounting the share without the prefixpath:
mount -t cifs //server/share /mnt/directory -o credentials=/path/to/cifs.credentials --verbose

I was then able to traverse to the directory within the share.

This share is on a NetApp SAN. Working with their support, they indicated that the client is attempting to mount //server/share//directory
(Note the double slash between the share and the prefixpath.)

See also http://unix.stackexchange.com/questions/164037/mount-cifs-error2-no-such-file-or-directory-when-using-a-prefixpath for a description of this issue.



-- System Information:
Debian Release: 7.8
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages cifs-utils depends on:
ii  libc6         2.13-38+deb7u7
ii  libkeyutils1  1.5.5-3+deb7u1
ii  libkrb5-3     1.10.1+dfsg-5+deb7u3
ii  libtalloc2    2.0.7+git20120207-1
ii  libwbclient0  2:3.6.6-6+deb7u4
ii  samba-common  2:3.6.6-6+deb7u4

Versions of packages cifs-utils recommends:
ii  keyutils  1.5.5-3+deb7u1
ii  winbind   2:3.6.6-6+deb7u4

Versions of packages cifs-utils suggests:
ii  smbclient  2:3.6.6-6+deb7u4

-- no debconf information