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Running application with user privillegions.

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  • N Offline
    N Offline
    nicholas_ru
    wrote last edited by nicholas_ru
    #16

    You have ubuntu. I have Debian. This is method change chmod, not exit for programmers.First post with running command very nice,but not full.

    JonBJ 1 Reply Last reply
    0
    • N nicholas_ru

      You have ubuntu. I have Debian. This is method change chmod, not exit for programmers.First post with running command very nice,but not full.

      JonBJ Offline
      JonBJ Offline
      JonB
      wrote last edited by JonB
      #17

      @nicholas_ru
      Did you even try it?? Debian man page https://manpages.debian.org/bookworm/coreutils/chmod.1.en.html

      Each MODE is of the form '[ugoa]*([-+=]([rwxXst]*|[ugo]))+|[-+=][0-7]+'.

      How else would you setuid under Debian? No point my suggesting things if they do work but you say they do not.

      .First post with running command very nice,but not full.

      If you mean @Joe-von-Habsburg 's QString command = QString("echo %1 | sudo -S %2").arg(1234).arg("ifconfig") it won't work as written if passed to QProcess::start().... But I am getting a bit dispirited trying to help you so up to you.

      Joe von HabsburgJ N 2 Replies Last reply
      0
      • JonBJ JonB

        @nicholas_ru
        Did you even try it?? Debian man page https://manpages.debian.org/bookworm/coreutils/chmod.1.en.html

        Each MODE is of the form '[ugoa]*([-+=]([rwxXst]*|[ugo]))+|[-+=][0-7]+'.

        How else would you setuid under Debian? No point my suggesting things if they do work but you say they do not.

        .First post with running command very nice,but not full.

        If you mean @Joe-von-Habsburg 's QString command = QString("echo %1 | sudo -S %2").arg(1234).arg("ifconfig") it won't work as written if passed to QProcess::start().... But I am getting a bit dispirited trying to help you so up to you.

        Joe von HabsburgJ Offline
        Joe von HabsburgJ Offline
        Joe von Habsburg
        wrote last edited by
        #18

        @JonB said in Running application with user privillegions.:

        But I am getting a bit dispirited trying to help you so up to you.

        :(

        @nicholas_ru said in Running application with user privillegions.:

        You have ubuntu. I have Debian. This is method change chmod, not exit for programmers.First post with running command very nice,but not full.

        so ? linux is linux and there is a qt forum. we try to help you

        JonBJ 1 Reply Last reply
        0
        • Joe von HabsburgJ Joe von Habsburg

          @JonB said in Running application with user privillegions.:

          But I am getting a bit dispirited trying to help you so up to you.

          :(

          @nicholas_ru said in Running application with user privillegions.:

          You have ubuntu. I have Debian. This is method change chmod, not exit for programmers.First post with running command very nice,but not full.

          so ? linux is linux and there is a qt forum. we try to help you

          JonBJ Offline
          JonBJ Offline
          JonB
          wrote last edited by JonB
          #19

          @Joe-von-Habsburg said in Running application with user privillegions.:

          But I am getting a bit dispirited trying to help you so up to you.

          :(

          To be clear: it is the OP I am getting "dispirited" trying to help, not your posts! :)

          He could use your code approach (perhaps, if that is what he wants), just that it needs changing to work. But since we (at least I) don't even know exactly what he wants I have not corrected it so far, waiting to see.....

          1 Reply Last reply
          1
          • JonBJ JonB

            @nicholas_ru
            Did you even try it?? Debian man page https://manpages.debian.org/bookworm/coreutils/chmod.1.en.html

            Each MODE is of the form '[ugoa]*([-+=]([rwxXst]*|[ugo]))+|[-+=][0-7]+'.

            How else would you setuid under Debian? No point my suggesting things if they do work but you say they do not.

            .First post with running command very nice,but not full.

            If you mean @Joe-von-Habsburg 's QString command = QString("echo %1 | sudo -S %2").arg(1234).arg("ifconfig") it won't work as written if passed to QProcess::start().... But I am getting a bit dispirited trying to help you so up to you.

            N Offline
            N Offline
            nicholas_ru
            wrote last edited by nicholas_ru
            #20

            @JonB i am think in Qt framework must be integrated this is function.

            JonBJ 1 Reply Last reply
            0
            • N nicholas_ru

              @JonB i am think in Qt framework must be integrated this is function.

              JonBJ Offline
              JonBJ Offline
              JonB
              wrote last edited by
              #21

              @nicholas_ru No idea what you mean. You have plenty of answers & suggestions above, so over to you to do something....

              N 1 Reply Last reply
              0
              • JonBJ JonB

                @nicholas_ru No idea what you mean. You have plenty of answers & suggestions above, so over to you to do something....

                N Offline
                N Offline
                nicholas_ru
                wrote last edited by
                #22

                @JonB if QProcess running with root true, if without false.

                JonBJ 1 Reply Last reply
                0
                • N nicholas_ru

                  @JonB if QProcess running with root true, if without false.

                  JonBJ Offline
                  JonBJ Offline
                  JonB
                  wrote last edited by
                  #23

                  @nicholas_ru
                  Again, I don't know what that phrase means. You might trying typing in your questions/answers with full detail in your native language into Google and asking it to translate to English, that may give a more meaningful question.

                  We have explained what the possibilities are for running programs under Linux setuid/as root. You have to pick one. You have to try the suggestions you have been given. I don't even believe what you said about chmod u+s not being available under your Debian. Qt as a framework has nothing to say or do about setuid. QProcess can be used to run other programs in the standard Linux exec-type way. Just because you say "i am think in Qt framework must be integrated this is function." does not make it so there is magically something else in Qt we have not discussed.

                  At this point I don't think anybody here knows what you actually want, what your problem is or what you have tried from the suggestions.

                  1 Reply Last reply
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                  • S Offline
                    S Offline
                    SimonSchroeder
                    wrote last edited by
                    #24

                    There is a reason why you can't just run anything with root privileges. And under normal circumstance you should not try to circumvent it. The most important question is if you really need to run something as root (while your own software is not started with root privileges). Qt does not provide anything special to run a process as root. You need to use OS functionality to run an elevated process (you can use QProcess to start sudo or use any of the other methods mentioned before). In the case of sudo it is up to you to ask the user for the password and hand it to sudo. But, even this is a bad idea because it is really easy to leak the password for an attacker.

                    1 Reply Last reply
                    0
                    • N Offline
                      N Offline
                      nicholas_ru
                      wrote last edited by nicholas_ru
                      #25

                      No,no attacker not recieve permissions, but idea not bad. I love Qt and this function for me needed for devleopment, because user also must be entering password.

                      JonBJ 1 Reply Last reply
                      0
                      • N nicholas_ru

                        No,no attacker not recieve permissions, but idea not bad. I love Qt and this function for me needed for devleopment, because user also must be entering password.

                        JonBJ Offline
                        JonBJ Offline
                        JonB
                        wrote last edited by
                        #26

                        @nicholas_ru
                        We have given you the alternative approaches for running setuid. Qt itself is not going to add anything in this area.

                        1 Reply Last reply
                        0
                        • N Offline
                          N Offline
                          nicholas_ru
                          wrote last edited by
                          #27

                          Well then my development will be limited and I'll have to look for other ways to implement it.

                          JonBJ SGaistS 2 Replies Last reply
                          0
                          • N nicholas_ru

                            Well then my development will be limited and I'll have to look for other ways to implement it.

                            JonBJ Offline
                            JonBJ Offline
                            JonB
                            wrote last edited by JonB
                            #28

                            @nicholas_ru
                            Gave you the 3 ways to implement it above in https://forum.qt.io/post/837390. Don't know what other ways you want or need, don't know why you don't pursue these. You seem to ask the question but not prepared to follow the suggestions. Up to you.

                            1 Reply Last reply
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                            • N nicholas_ru

                              Well then my development will be limited and I'll have to look for other ways to implement it.

                              SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote last edited by
                              #29

                              @nicholas_ru Since you used GParted as an example, use the same technique they use.

                              https://gitlab.gnome.org/GNOME/gparted/-/blob/master/src/main.cc?ref_type=heads
                              https://gitlab.gnome.org/GNOME/gparted/-/blob/master/org.gnome.gparted.policy.in.in?ref_type=heads

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                              Pl45m4P 1 Reply Last reply
                              3
                              • SGaistS SGaist

                                @nicholas_ru Since you used GParted as an example, use the same technique they use.

                                https://gitlab.gnome.org/GNOME/gparted/-/blob/master/src/main.cc?ref_type=heads
                                https://gitlab.gnome.org/GNOME/gparted/-/blob/master/org.gnome.gparted.policy.in.in?ref_type=heads

                                Pl45m4P Offline
                                Pl45m4P Offline
                                Pl45m4
                                wrote last edited by
                                #30

                                @SGaist

                                Nice to know :)

                                *.in.in file?!
                                So a file template for a file template for an actual file? :D


                                If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                                ~E. W. Dijkstra

                                SGaistS 1 Reply Last reply
                                0
                                • Pl45m4P Pl45m4

                                  @SGaist

                                  Nice to know :)

                                  *.in.in file?!
                                  So a file template for a file template for an actual file? :D

                                  SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote last edited by
                                  #31

                                  @Pl45m4 said in Running application with user privillegions.:

                                  @SGaist

                                  Nice to know :)

                                  *.in.in file?!
                                  So a file template for a file template for an actual file? :D

                                  There's never enough indirection... :-D

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  1 Reply Last reply
                                  0
                                  • K Offline
                                    K Offline
                                    kaixoo
                                    wrote last edited by
                                    #32

                                    I think he wants to run a process with administrative privileges by showing a UAC (User Account Control) dialog. This is what, for example, balenaEtcher does when it needs to burn a drive. Is this correct?

                                    JonBJ 1 Reply Last reply
                                    0
                                    • K kaixoo

                                      I think he wants to run a process with administrative privileges by showing a UAC (User Account Control) dialog. This is what, for example, balenaEtcher does when it needs to burn a drive. Is this correct?

                                      JonBJ Offline
                                      JonBJ Offline
                                      JonB
                                      wrote last edited by
                                      #33

                                      @kaixoo If you read the OP is under Linux, so there is no such thing as "UAC".

                                      1 Reply Last reply
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