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1−# unity8-setcap - ugly hacks to arrange for /usr/bin/unity8 to have CAP_SYS_RESOURCE
2−
3−# XXX replace me with some root-helper to gain CAP_SYS_RESOURCE XXX
4−
5−author "Loïc Minier <loic.minier@ubuntu.com>"
6−description "Ugly hacks to arrange for /usr/bin/unity8 to have CAP_SYS_RESOURCE"
7−
8−# start when first boot-hooks event is emitted and before lightdm (lightdm
9−# starts ubuntu-touch-session which starts unity8); note that /run is
10−# guaranteeds to be be there because lightdm starts on filesystem
11−start on boot-hooks and starting lightdm
12−
13−# NOT a task as otherwise this would block restarting lightdm
14−
15−env RUNDIR=/run/unity8-setcap
16−
17−# work needs to be done in pre-start as this really is a job with nothing to
18−# start
19−pre-start script
20− if [ ! -e "$RUNDIR" ]; then
21− mkdir "$RUNDIR"
22− # /run is noexec, hence mounting another tmpfs exec
23− # NB: unity8 is 35K; 512K should be enough for everyone
24− mount -o rw,nosuid,nodev,exec,relatime,mode=755,size=512k -t tmpfs tmpfs "$RUNDIR"
25− cp -a /usr/bin/unity8 "$RUNDIR"
26− setcap CAP_SYS_RESOURCE=+ep "$RUNDIR/unity8"
27− # bind-mount this back as unity8 checks dirname(argv[0]'s) == /usr to
28− # decide whether it's installed or not
29− mount --bind "$RUNDIR/unity8" /usr/bin/unity8
30− fi
31−end script
32−