allow init to run mke2fs tools to format partitions
Test: let fs_mgr format a damaged /data partition
Bug: 35219933
Change-Id: If92352ea7a70780e9d81ab10963d63e16b793792
(cherry picked from commit 5f573ab2aa8f566c723f4ddd576f8365dcaec191)
diff --git a/private/e2fs.te b/private/e2fs.te
new file mode 100644
index 0000000..add1cc2
--- /dev/null
+++ b/private/e2fs.te
@@ -0,0 +1,14 @@
+type e2fs, domain, coredomain;
+
+allow e2fs block_device:blk_file getattr;
+allow e2fs block_device:dir search;
+allow e2fs userdata_block_device:blk_file rw_file_perms;
+
+# access /proc/filesystems
+allow e2fs proc:file r_file_perms;
+
+# access /sys/fs/ext4/features
+allow e2fs sysfs_fs_ext4_features:file r_file_perms;
+
+# access sselinux context files
+allow e2fs file_contexts_file:file { getattr open read };
diff --git a/private/file_contexts b/private/file_contexts
index d35d47d..8faa6cd 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -17,6 +17,8 @@
/charger u:object_r:rootfs:s0
/init u:object_r:init_exec:s0
/sbin(/.*)? u:object_r:rootfs:s0
+/sbin/e2fsdroid u:object_r:e2fs_exec:s0
+/sbin/mke2fs u:object_r:e2fs_exec:s0
# For kernel modules
/lib(/.*)? u:object_r:rootfs:s0
diff --git a/private/genfs_contexts b/private/genfs_contexts
index 54e9a2c..3914cec 100644
--- a/private/genfs_contexts
+++ b/private/genfs_contexts
@@ -56,6 +56,7 @@
genfscon sysfs /devices/virtual/block/zram0/uevent u:object_r:sysfs_zram_uevent:s0
genfscon sysfs /devices/virtual/block/zram1/uevent u:object_r:sysfs_zram_uevent:s0
genfscon sysfs /devices/virtual/misc/hw_random u:object_r:sysfs_hwrandom:s0
+genfscon sysfs /fs/ext4/features u:object_r:sysfs_fs_ext4_features:s0
genfscon sysfs /power/wake_lock u:object_r:sysfs_wake_lock:s0
genfscon sysfs /power/wake_unlock u:object_r:sysfs_wake_lock:s0
genfscon sysfs /kernel/uevent_helper u:object_r:usermodehelper:s0
diff --git a/private/init.te b/private/init.te
index 726f138..5c23f66 100644
--- a/private/init.te
+++ b/private/init.te
@@ -6,6 +6,7 @@
domain_trans(init, rootfs, charger)
domain_trans(init, rootfs, healthd)
domain_trans(init, rootfs, slideshow)
+domain_auto_trans(init, e2fs_exec, e2fs)
recovery_only(`
domain_trans(init, rootfs, adbd)
domain_trans(init, rootfs, recovery)
diff --git a/public/e2fs.te b/public/e2fs.te
new file mode 100644
index 0000000..ecb25a2
--- /dev/null
+++ b/public/e2fs.te
@@ -0,0 +1 @@
+type e2fs_exec, exec_type, file_type;
diff --git a/public/file.te b/public/file.te
index 18e4334..a525090 100644
--- a/public/file.te
+++ b/public/file.te
@@ -42,6 +42,7 @@
type sysfs_wake_lock, fs_type, sysfs_type;
type sysfs_mac_address, fs_type, sysfs_type;
type sysfs_usb, sysfs_type, file_type, mlstrustedobject;
+type sysfs_fs_ext4_features, sysfs_type, fs_type;
type configfs, fs_type;
# /sys/devices/system/cpu
type sysfs_devices_system_cpu, fs_type, sysfs_type;