[kio-extras] [Bug 380302] New: smb:// KIO still tries SMBv1 first which is blocked by modern servers

[Waleed Hamra]

https://bugs.kde.org/show_bug.cgi?id=380302

            Bug ID: 380302
           Summary: smb:// KIO still tries SMBv1 first which is blocked by
                    modern servers
           Product: kio-extras
           Version: unspecified
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: default
          Assignee: plasma-devel at kde.org
          Reporter: kdebugs at whamra.com
  Target Milestone: ---

After the latest patches, many Microsoft servers now block all SMBv1 requests,
without even renogitiating. This causes programs like Dolphin to show a
"Timeout on server" error, because it attempted an SMBv1 connection and failed.
in smb.conf I have the min protocol specified to SMB2, but it seems the KIO
slave for samba does not honour it, and still attempts an SMBv1 connection,
assuming that it'll be able to negotiate if the server wants a higher protocol,
which is not going to happen anymore.
This results in the inability to browse any SMB shares without having to mount
them manually somewhere.
Suggestion: Either honour the min protocol configuration, or add settings to
configure how KDE will handle samba. Or maybe allow us to specify version in
URL somehow? (Ex= smb2://)

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