[Bug 1392647] Re: smbstatus reports dead connection as active

[Konstantin Hollerith]

I'm also using smbstatus to power of my server, if it's not in use, but
this bug prevents it.

I created this workaround script to ping the ip's (only ipv4) that
smbstatus reports, it reports the ip's as "online" or "offline". One
could also alter the script so the output is exactly like "smbstatus
-b", just showing the online clients only.


#!/bin/bash
# returns 1 if any  smb client is online, otherwise 0
function pingClient
{
    ping -c1 -W1 -q $1 &>/dev/null
    status=$( echo $? )
    if [[ $status == 0 ]] ; then
         #ping success
        echo "smb client $1 online"
        return 1
    else
         #ping failure
        echo "smb client $1 offline"
    fi
}
sudo /usr/bin/smbstatus -b | grep -o -P "\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}" | sort | uniq | while read -r a; do pingClient $a; done

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https://bugs.launchpad.net/bugs/1392647

Title:
  smbstatus reports dead connection as active

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  I have a home server running ubuntu 14.04.1 LTS.
  It was setup originally with ubuntu 12.04 LTS and running satisfactorily for more than 2 years
  The server checks every 10 minutes and goes to sleep if no active clients are detected.
  My main PC is a w7 box connecting to some samba shares on the server.
  In the past 3 weeks it happened 3 times that the server reported an active samba connection although the client had long been shutdown.
  At the first occurrence I set the deadtime parameter to 10 but this did not solve the problem.
  The deadtime parameter was not there at all for the past 2 years and the problem only showed up lately so I think the cause of problem is somewhere else.

  This is the output of smbstatus -v taken about 2 hours after the client has been powered off.
  It should not show the 4366 PID lines.

  
  Samba version 4.1.6-Ubuntu
  PID     Username      Group         Machine
  -------------------------------------------------------------------
  4366      father        father        192.168.101.69 (ipv4:192.168.101.69:2132)
  Opened /var/run/samba/connections.tdb

  Service      pid     machine       Connected at
  -------------------------------------------------------
  HomeServer     4366   192.168.101.69  Thu Nov 13 19:03:04 2014

  Locked files:
  Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time
  --------------------------------------------------------------------------------------------------
  4366         1000       DENY_NONE  0x100081    RDONLY     NONE             /Data.Home   .   Thu Nov 13 19:03:04 2014

  apt-cache policy samba reports
  samba:
    Installed: 2:4.1.6+dfsg-1ubuntu2.14.04.3
    Candidate: 2:4.1.6+dfsg-1ubuntu2.14.04.3
    Version table:
   *** 2:4.1.6+dfsg-1ubuntu2.14.04.3 0
          500 http://de.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
          100 /var/lib/dpkg/status
       2:4.1.6+dfsg-1ubuntu2 0
          500 http://de.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

  My list of installed packages is attached.

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