Add the ability to revert a crypto mapping when unmounting a volume

Add the force_and_revert option to the unmount command which will force
the unmount, and revert a crypto mapping.  This is used during factory
reset so that when the internal sdcard volume is formatted, it formats
the raw device, not the encrypted mapping.

Change-Id: I36b6ff9bb54863b121de635472a303bf4a2334a9

1 files changed, 1 insertions, 0 deletions

diff --git a/cryptfs.h b/cryptfs.h
index 8b4c37b..a0693d3 100644
--- a/cryptfs.h
+++ b/cryptfs.h
@@ -81,6 +81,7 @@ extern "C" {
   int cryptfs_setup_volume(const char *label, int major, int minor,
                            char *crypto_dev_path, unsigned int max_pathlen,
                            int *new_major, int *new_minor);
+  int cryptfs_revert_volume(const char *label);
 #ifdef __cplusplus
 }
 #endif