recovery: Fix recursive rm wipe of data

Android 6 re-introduced MCS/MLS SELinux contexts.  Unforunately,
this broke our previous SELinux model for walking /data and unlinking
everything but media.  Fix this by mounting /data with a temporary
SELinux context that works with the previous model.

Ticket: CYNGNOS-1747
Change-Id: Id87ad3bb357102c3a8bd7c1417183d788ef858a0

1 files changed, 2 insertions, 0 deletions

diff --git a/roots.h b/roots.h
index addb142..2140363 100644
--- a/roots.h
+++ b/roots.h
@@ -30,6 +30,8 @@ Volume* volume_for_path(const char* path);
 // success (volume is mounted).
 int ensure_volume_mounted(Volume* v, bool force_rw=false);
 int ensure_path_mounted(const char* path, bool force_rw=false);
+// Above, plus override SELinux default context
+int remount_for_wipe(const char* path);
 
 // Similar to ensure_path_mounted, but allows one to specify the mount_point.
 int ensure_path_mounted_at(const char* path, const char* mount_point, bool force_rw=false);