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| author | Peter Hutterer <peter.hutterer@who-t.net> | 2017-06-12 15:12:06 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2017-06-21 08:30:55 +1000 |
| commit | 948cd6ee540cebe1def6b46d2a6c4b82ce670410 (patch) | |
| tree | 1e977bf209d08a2877153aa92fdd08ef049e22f4 | |
| parent | ca1edce2e1182623592c3ac4badabef7f5ec0c93 (diff) | |
doc: add instructions for handling SELinux denials
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
| -rw-r--r-- | doc/building.dox | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/building.dox b/doc/building.dox index 5ce2146..56dfd6f 100644 --- a/doc/building.dox +++ b/doc/building.dox @@ -102,6 +102,30 @@ overwriting manually installed files. <li><b>Arch</b>: ```sudo packman -S libinput```</li> </ul> +@subsection building_selinux SELinux adjustments + +On systems with SELinux, overwriting the distribution-provided package with +a manually built libinput may cause SELinux denials. This usually manifests +when gdm does not start because it is denied access to libinput. The journal +shows a log message in the form of: + +<pre> +May 25 15:28:42 localhost.localdomain audit[23268]: AVC avc: denied { execute } for pid=23268 comm="gnome-shell" path="/usr/lib64/libinput.so.10.12.2" dev="dm-0" ino=1709093 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=0 +May 25 15:28:42 localhost.localdomain org.gnome.Shell.desktop[23270]: /usr/bin/gnome-shell: error while loading shared libraries: libinput.so.10: failed to map segment from shared object +</pre> + +The summary of this error message is that gdm's gnome-shell runs in the +```system_u:system_r:xdm_t``` context but libinput is installed with the +context ```unconfined_u:object_r:user_home_t```. + +To avoid this issue, restore the SELinux context for any system files. + +<pre> +$> sudo restorecon /usr/lib*/libinput.so.* +</pre> + +This issue is tracked in https://github.com/mesonbuild/meson/issues/1967. + @subsection building_dependencies Build dependencies libinput has a few build-time dependencies that must be installed prior to |