bug#73547: Unable to run `guix pull` on Fedora (Asahi) due to SELinux violations

[Pasta Pasta]

Hi!

Is anyone to evaluate this?

Thanks!

On Sat, Sep 28, 2024 at 11:01 PM Pasta Pasta <pasta@dash.org> wrote:
>
> Hi all,
>
> I installed guix via
> https://guix.gnu.org/manual/en/html_node/Binary-Installation.html
> specifically
> ```
> cd /tmp
> wget https://git.savannah.gnu.org/cgit/guix.git/plain/etc/guix-install.sh
> chmod +x guix-install.sh
> sudo ./guix-install.sh
> ```
>
> I then tried to follow the docs here:
> https://guix.gnu.org/manual/en/html_node/SELinux-Support.html related
> to SELinux
>
> I ended up running
> ```
> sudo semodule -i
> /gnu/store/271mkw93sqb3hc4ngszcjfsc2wsb6yc8-guix-1.4.0/share/selinux/guix-daemon.cil
> ```
>
> As this was the only file I found that looked right according to the
> docs such as `semodule -i etc/guix-daemon.cil`
>
> I've restarted my system a few times, however, I am still getting
> SELinux violations resulting in
> ```
> $ guix pull
> guix pull: error: remounting /gnu/store writable: Permission denied
> ```
>
> see the detailed SELinux violation report
>
> ```
> SELinux is preventing guix-daemon from remount access on the filesystem .
>
> *****  Plugin catchall (100. confidence) suggests   **************************
>
> If you believe that guix-daemon should be allowed remount access on
> the  filesystem by default.
> Then you should report this as a bug.
> You can generate a local policy module to allow this access.
> Do
> allow this access for now by executing:
> # ausearch -c 'guix-daemon' --raw | audit2allow -M my-guixdaemon
> # semodule -X 300 -i my-guixdaemon.pp
>
> Additional Information:
> Source Context                system_u:system_r:guix_daemon.guix_daemon_t:s0
> Target Context                system_u:object_r:fs_t:s0
> Target Objects                 [ filesystem ]
> Source                        guix-daemon
> Source Path                   guix-daemon
> Port                          <Unknown>
> Host                          pasta-macbookpro-asahi
> Source RPM Packages
> Target RPM Packages
> SELinux Policy RPM            selinux-policy-targeted-40.27-1.fc40.noarch
> Local Policy RPM
> Selinux Enabled               True
> Policy Type                   targeted
> Enforcing Mode                Enforcing
> Host Name                     pasta-macbookpro-asahi
> Platform                      Linux pasta-macbookpro-asahi
>                               6.11.0-400.asahi.fc40.aarch64+16k #1 SMP
>                               PREEMPT_DYNAMIC Fri Sep 27 02:59:31 UTC 2024
>                               aarch64
> Alert Count                   12
> First Seen                    2024-09-28 22:37:00 CDT
> Last Seen                     2024-09-28 22:51:58 CDT
> Local ID                      00bfc2a9-edf9-49d4-9f98-aaff428092a2
>
> Raw Audit Messages
> type=AVC msg=audit(1727581918.607:304): avc:  denied  { remount } for
> pid=3363 comm="guix-daemon"
> scontext=system_u:system_r:guix_daemon.guix_daemon_t:s0
> tcontext=system_u:object_r:fs_t:s0 tclass=filesystem permissive=0
>
>
> Hash: guix-daemon,guix_daemon.guix_daemon_t,fs_t,filesystem,remount
> ```
>
> I tried running the recommended steps by SELinux, but that did not work.
>
> Please advise!