Re: Change suspend type from kde menu

From	Valerio Vanni <valerio.vanni@inwind.it>
Newsgroups	linux.debian.user
Subject	Re: Change suspend type from kde menu
Date	2024-01-05 18:00 +0100
Message-ID	<HSVI5-117b-15@gated-at.bofh.it> (permalink)
References	(4 earlier) <HRRwR-kuX-5@gated-at.bofh.it> <HSc8h-xq7-1@gated-at.bofh.it> <HScBj-xAc-11@gated-at.bofh.it> <HSwA1-Kr6-7@gated-at.bofh.it> <HSxPr-Lwi-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Il 04/01/2024 16:27, Greg Wooledge ha scritto:
> On Thu, Jan 04, 2024 at 03:07:59PM +0100, Valerio Vanni wrote:
>> Il 03/01/2024 17:41, Greg Wooledge ha scritto:
>>> The su command is not an ideal choice for this, in fact.  The setpriv(1)
>>> command is better suited for running programs as other user accounts,
>>> without doing crazy PAM stuff like su does.
>>
>> Can you explain better?
> 
> http://jdebp.info/FGA/dont-abuse-su-for-dropping-privileges.html

Thank you.

Now I'm trying this way:
-----
#!/bin/bash
case "$1" in
     pre)
             #code execution BEFORE sleeping/hibernating/suspending
	    kafpid=$(pgrep kaffeine)
             kafuid=$(stat -c "%u" /proc/$kafpid)
             kafgid=$(stat -c "%g" /proc/$kafpid)
	    kafdis=$(cat /proc/$kafpid/environ | tr '\0' '\n' | grep DISPLAY)
	
             echo $kafuid > /temp/kafuid.txt
             echo $kafgid > /temp/kafgid.txt
	    echo $kafdis > /temp/kafdis.txt

             kaffeine_killed=$(/usr/bin/killall kaffeine 2>&1)
     	    echo $kaffeine_killed > /temp/kafstate.txt
             /usr/bin/sleep 2
             /usr/sbin/rmmod cx23885
     ;;
     post)
             #code execution AFTER resuming
             /usr/sbin/modprobe cx23885
             /usr/bin/sleep 3
	    kaffeine_killed=$(cat /temp/kafstate.txt)
	    kafuid=$(cat /temp/kafuid.txt)
	    kafgid=$(cat /temp/kafgid.txt)
	    kafdis=$(cat /temp/kafdis.txt)
	
	    if [[ $kaffeine_killed == "" ]]; then
	
	    setpriv --reuid "$kafuid" --regid "$kafgid" --init-groups --reset-env \
       env XDG_RUNTIME_DIR=/run/user/"$kafuid" $kafdis 
XDG_CURRENT_DESKTOP=KDE \
       /usr/bin/kaffeine --lastchannel >/dev/null 2>&1
	    fi
	
	    rm -f /temp/kafstate.txt
	    rm -f /temp/kafuid.txt
	    rm -f /temp/kafgid.txt
	    rm -f /temp/kafdis.txt
     ;;
esac

-----
Uid, gid and display are saved and restored, so it can works also for 
other users and x servers.
But with setpriv kaffeine was complaining it couldn't find .config/, 
database etc and so it wasn't able to start. It seems that was ignorming 
original user's home and tried to access root home.

Adding the parameter --reset-env seems to fix, kaffeine restarts.
But, after some minutes, it closes. I don't understand why.

-Kaffeine launched by hand stays up
-Kaffeine restored with "su" method stays up
-Kaffeine restored with "setpriv" method lasts only some minute

Thread

Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-25 04:40 +0100
  Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-27 22:00 +0100
    Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2023-12-28 02:50 +0100
    Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2023-12-28 15:50 +0100
      Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-28 23:20 +0100
        Re: Change suspend type from kde menu Charles Curley <charlescurley@charlescurley.com> - 2023-12-29 00:20 +0100
          Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-29 02:30 +0100
            Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2023-12-29 03:00 +0100
              Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-29 23:00 +0100
        Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-02 19:20 +0100
          Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-03 17:20 +0100
            Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-03 17:50 +0100
              Re: Change suspend type from kde menu Arno Lehmann <al@its-lehmann.de> - 2024-01-03 18:40 +0100
              Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 15:10 +0100
                Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-04 16:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 18:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 20:00 +0100
                Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-05 20:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 20:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 20:40 +0100
                Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-05 20:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 21:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 21:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 23:40 +0100
                Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-06 01:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-06 13:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-06 16:30 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-07 06:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-08 04:40 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-10 20:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 04:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 14:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-09 22:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 05:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 15:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 16:40 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-09 19:40 +0100
            Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 00:00 +0100
              Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 15:10 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-04 15:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 16:30 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-04 17:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 18:10 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-06 17:40 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-09 20:00 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 05:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 15:20 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 16:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 16:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-12 04:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 12:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 15:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-12 17:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 22:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-13 16:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-13 16:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-14 05:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-15 14:40 +0100
                Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-12 15:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 15:40 +0100
                Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-12 21:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 23:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-15 14:50 +0100

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