modprobe domain was allowed to launch vendor toolbox even if its a
coredomain. That violates the treble separation. Fix that by creating a
separate 'vendor_modprobe' domain that init is allowed to transition to
through vendor_toolbox.
Bug: 37008075
Test: Build and boot sailfish
Change-Id: Ic3331797691bb5d1fdc05a674aa4aa313e1f86b2
Signed-off-by: Sandeep Patil <sspatil@google.com>
Modprobe requires this permission or the following denial will
prevent loading of signed kernel modules:
audit: type=1400 audit(27331649.656:4): avc: denied { search } for
pid=448 comm="modprobe" scontext=u:r:modprobe:s0 tcontext=u:r:kernel:s0
tclass=key permissive=0
Bug: 62256697
Test: Verified signed module loading on sailfish.
Change-Id: Idde41d1ab58e760398190d6686665a252f1823bb
The kernel modules under /vendor partition has been relabeled to vendor_file.
This CL allows for the modprobe to load modules labeled vendor_file.
Kernel modules are loaded in init.rc with following commands:
exec u:r:modprobe:s0 -- /system/bin/modprobe -d /vendor/lib/modules MODULE
Bug: 35653245
Test: tested on sailfish
Change-Id: I2132ca4de01c5c60476dad8496e98266de5a1bb7
This change extends the recovery mode modprobe sepolicy
to support loadable kernel module in normal mode by using
statement below in init.rc:
exec u:r:modprobe:s0 -- /system/bin/modprobe \
-d /vendor/lib/modules mod
Bug: b/35653245
Test: sailfish with local built kernel and LKM enabled
Change-Id: I827e2ce387c899db3e0e179da92e79c75d61f5ae
(cherry picked from commit b638d9493f)
This change defines new policy for modprobe (/sbin/modprobe) that should
be used in both recovery and android mode.
Denials:
[ 16.986440] c0 437 audit: type=1400 audit(6138546.943:5): avc:
denied { read } for pid=437 comm="modprobe" name="modules" dev="proc"
ino=4026532405 scontext=u:object_r:modprobe:s0
tcontext=u:object_r:proc:s0 tclass=file permissive=1
[ 16.986521] c0 437 audit: type=1400 audit(6138546.943:6): avc:
denied { open } for pid=437 comm="modprobe" path="/proc/modules"
dev="proc" ino=4026532405 scontext=u:object_r:modprobe:s0
tcontext=u:object_r:proc:s0 tclass=file permissive=1
[ 16.986544] c0 437 audit: type=1400 audit(6138546.943:7): avc:
denied { getattr } for pid=437 comm="modprobe" path="/proc/modules"
dev="proc" ino=4026532405 scontext=u:object_r:modprobe:s0
tcontext=u:object_r:proc:s0 tclass=file permissive=1
Bug: 35633646
Test: Build and tested it works in sailfish recovery. The modprobe is
invoked in init.rc (at the end of 'on init') with following command line
exec u:r:modprobe:s0 -- /sbin/modprobe -a nilfs2 ftl
Change-Id: Ie70be6f918bea6059f806e2eb38cd48229facafa
