Adding e4crypt support

Add file encryption flag to fstab.

If file encryption flag set in fstab, handle identically to block
encrypted volumes.

Requires matching change:
  https://googleplex-android-review.git.corp.google.com/#/c/642778/

Change-Id: I28c236959f2d7d5f0dccc8ea45c325ea0cf871fc

1 files changed, 12 insertions, 6 deletions

diff --git a/fs_mgr/fs_mgr_fstab.c b/fs_mgr/fs_mgr_fstab.c
index 64f7edc..3b91cb9 100644
--- a/fs_mgr/fs_mgr_fstab.c
+++ b/fs_mgr/fs_mgr_fstab.c
@@ -60,6 +60,7 @@ static struct flag_list fs_mgr_flags[] = {
     { "check",       MF_CHECK },
     { "encryptable=",MF_CRYPT },
     { "forceencrypt=",MF_FORCECRYPT },
+    { "fileencryption",MF_FILEENCRYPTION },
     { "nonremovable",MF_NONREMOVABLE },
     { "voldmanaged=",MF_VOLDMANAGED},
     { "length=",     MF_LENGTH },
@@ -409,32 +410,37 @@ struct fstab_rec *fs_mgr_get_entry_for_mount_point(struct fstab *fstab, const ch
     return fs_mgr_get_entry_for_mount_point_after(NULL, fstab, path);
 }
 
-int fs_mgr_is_voldmanaged(struct fstab_rec *fstab)
+int fs_mgr_is_voldmanaged(const struct fstab_rec *fstab)
 {
     return fstab->fs_mgr_flags & MF_VOLDMANAGED;
 }
 
-int fs_mgr_is_nonremovable(struct fstab_rec *fstab)
+int fs_mgr_is_nonremovable(const struct fstab_rec *fstab)
 {
     return fstab->fs_mgr_flags & MF_NONREMOVABLE;
 }
 
-int fs_mgr_is_verified(struct fstab_rec *fstab)
+int fs_mgr_is_verified(const struct fstab_rec *fstab)
 {
     return fstab->fs_mgr_flags & MF_VERIFY;
 }
 
-int fs_mgr_is_encryptable(struct fstab_rec *fstab)
+int fs_mgr_is_encryptable(const struct fstab_rec *fstab)
 {
     return fstab->fs_mgr_flags & (MF_CRYPT | MF_FORCECRYPT);
 }
 
-int fs_mgr_is_noemulatedsd(struct fstab_rec *fstab)
+int fs_mgr_is_file_encrypted(const struct fstab_rec *fstab)
+{
+    return fstab->fs_mgr_flags & MF_FILEENCRYPTION;
+}
+
+int fs_mgr_is_noemulatedsd(const struct fstab_rec *fstab)
 {
     return fstab->fs_mgr_flags & MF_NOEMULATEDSD;
 }
 
-int fs_mgr_is_notrim(struct fstab_rec *fstab)
+int fs_mgr_is_notrim(const struct fstab_rec *fstab)
 {
     return fstab->fs_mgr_flags & MF_NOTRIM;
 }