PGP: Set a default creation SELinux labels on GnuPG directories #290
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This is another way how to fix mismatching SELinux context on /run/user directories without moving the directories to /run/gnupg/user. librepo used to precreate the directory in /run/user to make sure a GnuPG agent executed by GPGME library places its socket there. The directories there are normally created and removed by systemd (logind PAM session). librepo created them for a case when a package manager is invoked out of systemd session, before the super user logs in. E.g. by a timer job to cache repository metadata. A problem was when this out-of-session process was a SELinux-confined process creating files with its own SELinux label different from a DNF program. Then the directory was created with a SELinux label different from the one expected by systemd and when logging out a corresponding user, the mismatching label clashed with systemd. This patch fixes the issue by choosing a SELinux label of those directories to the label defined in a default SELinux file context database. This patch adds a new -DENABLE_SELINUX=OFF CMake option to disable the new dependency on libselinux. A default behavior is to support SELinux only if GPGME backend is selected with -DUSE_GPGME=ON. https://issues.redhat.com/browse/RHEL-10720
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The tests fail because of a misconfigured CI (issue #291). |
jan-kolarik
approved these changes
Oct 24, 2023
jan-kolarik
merged commit 69e3a61
into
rpm-software-management:rhel-9.4
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This is another way how to fix mismatching SELinux context on /run/user directories without moving the directories to /run/gnupg/user.
librepo used to precreate the directory in /run/user to make sure a GnuPG agent executed by GPGME library places its socket there.
The directories there are normally created and removed by systemd (logind PAM session). librepo created them for a case when a package manager is invoked out of systemd session, before the super user logs in. E.g. by a timer job to cache repository metadata.
A problem was when this out-of-session process was a SELinux-confined process creating files with its own SELinux label different from a DNF program. Then the directory was created with a SELinux label different from the one expected by systemd and when logging out a corresponding user, the mismatching label clashed with systemd.
This patch fixes the issue by choosing a SELinux label of those directories to the label defined in a default SELinux file context database.
This patch adds a new -DENABLE_SELINUX=OFF CMake option to disable the new dependency on libselinux. A default behavior is to support SELinux only if GPGME backend is selected with -DUSE_GPGME=ON.
https://issues.redhat.com/browse/RHEL-10720