[systemd-bugs] [Bug 89851] New: fstab-generator creates incorrect mount units for CIFS

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89851

            Bug ID: 89851
           Summary: fstab-generator creates incorrect mount units for CIFS
           Product: systemd
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
          Assignee: systemd-bugs at lists.freedesktop.org
          Reporter: artyom.h31 at gmail.com
        QA Contact: systemd-bugs at lists.freedesktop.org

Hello. I'm using systemd 219 on Ubuntu 15.04.
I have the following line in /etc/fstab:

\\192.168.1.110\ExtHDD /mnt/nas cifs
vers=3.0,nofail,credentials=/etc/net_pass,uid=1000,gid=1000 0 0

"sudo mount /mnt/nas/" works properly in this case. Hovewer, fstab-generator
creates an incorrect mount unit:

# Automatically generated by systemd-fstab-generator

[Unit]
SourcePath=/etc/fstab
Documentation=man:fstab(5) man:systemd-fstab-generator(8)

[Mount]
What=\192.168.1.110\ExtHDD
Where=/mnt/nas
Type=cifs
Options=vers=3.0,nofail,credentials=/etc/net_pass,uid=1000,gid=1000

Note a missing backslash before the IP address. "systemctl status
mnt-nas.mount" obviously tells that unit wasn't able to start:

марта 31 20:23:32 artyom-H97-D3H mount[7360]: mount.cifs: bad UNC
(\192.168.1.110\ExtHDD)

Let's add more backslashes to the CIFS path:

\\\\192.168.1.110\\ExtHDD /mnt/nas cifs
vers=3.0,nofail,credentials=/etc/net_pass,uid=1000,gid=1000 0 0

In this case, generated mount unit is correct:

# Automatically generated by systemd-fstab-generator

[Unit]
SourcePath=/etc/fstab
Documentation=man:fstab(5) man:systemd-fstab-generator(8)

[Mount]
What=\\192.168.1.110\ExtHDD
Where=/mnt/nas
Type=cifs
Options=vers=3.0,nofail,x-gvfs-show,credentials=/etc/nas_passwd,uid=1000,gid=1000,cache=loose

However, mount commands refuses to work:

$ sudo mount /mnt/nas 
mount.cifs: bad UNC (\\\\192.168.1.110\\ExtHDD)

I don't precisely know if fstab entries should contain escape characters (extra
backslashes). Nonetheless, fstab-generator and mount command should have the
same behaviour anyway.

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