platform_system_sepolicy/recovery.te
Stephen Smalley 3f40d4f4b1 Remove block device access from unconfined domains.
Only allow to domains as required and amend the existing
neverallow on block_device:blk_file to replace the
exemption for unconfineddomain with an explicit whitelist.
The neverallow does not check other device types as specific
ones may need to be writable by device-specific domains.

Change-Id: I0f2f1f565e886ae110a719a08aa3a1e7e9f23e8c
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2014-02-12 13:03:38 -05:00

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# recovery console (used in recovery init.rc for /sbin/recovery)
type recovery, domain;
allow recovery rootfs:file entrypoint;
unconfined_domain(recovery)
relabelto_domain(recovery)
allow recovery self:capability2 mac_admin;
allow recovery {fs_type dev_type -kmem_device file_type}:dir_file_class_set relabelto;
allow recovery unlabeled:filesystem mount;
allow recovery fs_type:filesystem *;
# Required to e.g. wipe userdata/cache.
allow recovery dev_type:blk_file rw_file_perms;
allow recovery self:process execmem;
allow recovery ashmem_device:chr_file execute;
allow recovery tmpfs:file rx_file_perms;
## TODO: Investigate whether it is safe to remove these
allow recovery self:capability { sys_rawio mknod };
auditallow recovery self:capability { sys_rawio mknod };