[reactos] 02/02: [NTFS] Check file isn't encrypted

[Marat Nagayev]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=240dc77e4270572a472523...

commit 240dc77e4270572a472523108bbfb3651bdb6c0f
Author:     Marat Nagayev [e-mail]
AuthorDate: Wed Aug 4 09:03:39 2021 +0300
Commit:     Victor Perevertkin [e-mail]
CommitDate: Wed Aug 4 16:07:18 2021 +0300

[NTFS] Check file isn't encrypted
---
 drivers/filesystems/ntfs/fcb.c  | 6 ++++++
 drivers/filesystems/ntfs/ntfs.h | 3 +++
 drivers/filesystems/ntfs/rw.c   | 7 +++++++
 3 files changed, 16 insertions(+)

diff --git a/drivers/filesystems/ntfs/fcb.c b/drivers/filesystems/ntfs/fcb.c
index 2ff5ac5395f..7badedba171 100644
--- a/drivers/filesystems/ntfs/fcb.c
+++ b/drivers/filesystems/ntfs/fcb.c
@@ -143,6 +143,12 @@ NtfsFCBIsCompressed(PNTFS_FCB Fcb)
     return ((Fcb->Entry.FileAttributes & NTFS_FILE_TYPE_COMPRESSED) == NTFS_FILE_TYPE_COMPRESSED);
 }

+BOOLEAN
+NtfsFCBIsEncrypted(PNTFS_FCB Fcb)
+{
+    return ((Fcb->Entry.FileAttributes & NTFS_FILE_TYPE_ENCRYPTED) == NTFS_FILE_TYPE_ENCRYPTED);
+}
+
 BOOLEAN
 NtfsFCBIsRoot(PNTFS_FCB Fcb)
 {
diff --git a/drivers/filesystems/ntfs/ntfs.h b/drivers/filesystems/ntfs/ntfs.h
index 38107a808a9..b5bb0645fa7 100644
--- a/drivers/filesystems/ntfs/ntfs.h
+++ b/drivers/filesystems/ntfs/ntfs.h
@@ -935,6 +935,9 @@ NtfsFCBIsReparsePoint(PNTFS_FCB Fcb);
 BOOLEAN
 NtfsFCBIsCompressed(PNTFS_FCB Fcb);

+BOOLEAN
+NtfsFCBIsEncrypted(PNTFS_FCB Fcb);
+
 BOOLEAN
 NtfsFCBIsRoot(PNTFS_FCB Fcb);

diff --git a/drivers/filesystems/ntfs/rw.c b/drivers/filesystems/ntfs/rw.c
index a060adbb411..f5bac1e9c4e 100644
--- a/drivers/filesystems/ntfs/rw.c
+++ b/drivers/filesystems/ntfs/rw.c
@@ -79,6 +79,13 @@ NtfsReadFile(PDEVICE_EXTENSION DeviceExt,
         return STATUS_NOT_IMPLEMENTED;
     }

+    if (NtfsFCBIsEncrypted(Fcb))
+    {
+        DPRINT1("Encrypted file!\n");
+        UNIMPLEMENTED;
+        return STATUS_NOT_IMPLEMENTED;
+    }
+
     FileRecord = ExAllocateFromNPagedLookasideList(&DeviceExt->FileRecLookasideList);
     if (FileRecord == NULL)
     {