gvfs can't list shares from smb servers that disabled SMB1

Bug #1828107 reported by Andreas Hasenack on 2019-05-07
This bug affects 4 people
Affects Status Importance Assigned to Milestone
gvfs (Ubuntu)

Bug Description

After bug #1778322 is fixed (just needs a gvfs rebuild with newer samba), samba machines will start to show up again in the "windows network" tab in nautilus. But if a server has disabled the SMB1 protocol, nautilus will show an error when that server is clicked on, instead of showing the shares list.

Even with SMB1 disabled, it should still be technically possible to get a share list, since smbclient can do it:

andreas@nsnx:~$ nmblookup -A
Looking up status of
 D-NO-SMB1 <00> - B <ACTIVE>
 D-NO-SMB1 <03> - B <ACTIVE>
 D-NO-SMB1 <20> - B <ACTIVE>
 ..__MSBROWSE__. <01> - <GROUP> B <ACTIVE>

 MAC Address = 00-00-00-00-00-00

andreas@nsnx:~$ smbclient -L -N
WARNING: The "syslog" option is deprecated

 Sharename Type Comment
 --------- ---- -------
 print$ Disk Printer Drivers
 pub_no_smb1 Disk
 IPC$ IPC IPC Service (d-no-smb1 server (Samba, Ubuntu))
Reconnecting with SMB1 for workgroup listing.
protocol negotiation failed: NT_STATUS_INVALID_NETWORK_RESPONSE
Failed to connect with SMB1 -- no workgroup available

andreas@nsnx:~$ smbclient // -U ubuntu%ubuntu -m NT1
WARNING: The "syslog" option is deprecated
protocol negotiation failed: NT_STATUS_INVALID_NETWORK_RESPONSE

andreas@nsnx:~$ smbclient // -U ubuntu%ubuntu -m SMB2
WARNING: The "syslog" option is deprecated
Try "help" to get a list of possible commands.
smb: \> dir
  . D 0 Fri May 3 18:16:38 2019
  .. D 0 Fri May 3 18:15:24 2019
  hello.txt N 21 Fri May 3 18:16:12 2019
  hello-from-nsnx.txt A 9 Fri May 3 18:16:38 2019

  20509264 blocks of size 1024. 13121800 blocks available

summary: - gvfs can't browse smb servers that disabled SMB1
+ gvfs can't list shares from smb servers that disabled SMB1
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gvfs (Ubuntu):
status: New → Confirmed
Changed in gvfs:
status: Unknown → New
Changed in gvfs (Ubuntu):
status: Confirmed → Triaged
BloodyIron (bloodyiron) wrote :

I too am experiencing this in Ubuntu 19.04.

BloodyIron (bloodyiron) wrote :

So... any word on this bug? :S Still getting it.

Andreas Hasenack (ahasenack) wrote :

Looks like I missed a notification in https://gitlab.gnome.org/GNOME/gvfs/issues/307, I'll followup there

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