VeraCrypt
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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2022-02-10 01:01:51 +0100
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2022-02-10 01:21:25 +0100
commitaebb099da27700bc575ecc475e0d2f95bf99a7ca (patch)
tree0bbd1f4d78afc0abcd944162644caaa55cc23f7f /src/Driver
parent1ef05f24e28938c7a0608b4c6b369094d1dccaa6 (diff)
downloadVeraCrypt-aebb099da27700bc575ecc475e0d2f95bf99a7ca.tar.gz
VeraCrypt-aebb099da27700bc575ecc475e0d2f95bf99a7ca.zip
Windows Driver: Don't cache the password if outer volume mounting succeeds but hidden volume mounting fails
Diffstat (limited to 'src/Driver')
-rw-r--r--src/Driver/Ntvol.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/src/Driver/Ntvol.c b/src/Driver/Ntvol.c
index 45a07cdb..ebef6c37 100644
--- a/src/Driver/Ntvol.c
+++ b/src/Driver/Ntvol.c
@@ -58,6 +58,8 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
BOOL forceAccessCheck = !bRawDevice;
BOOL disableBuffering = TRUE;
BOOL exclusiveAccess = mount->bExclusiveAccess;
+ /* when mounting with hidden volume protection, we cache the passwords after both outer and hidden volumes are mounted successfully*/
+ BOOL bAutoCachePassword = mount->bProtectHiddenVolume? FALSE : mount->bCache;
Extension->pfoDeviceFile = NULL;
Extension->hDeviceFile = NULL;
@@ -602,7 +604,7 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
{
mount->nReturnCode = ReadVolumeHeaderWCache (
FALSE,
- mount->bCache,
+ bAutoCachePassword,
mount->bCachePim,
readBuffer,
&mount->ProtectedHidVolPassword,
@@ -615,7 +617,7 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
{
mount->nReturnCode = ReadVolumeHeaderWCache (
mount->bPartitionInInactiveSysEncScope && volumeType == TC_VOLUME_TYPE_NORMAL,
- mount->bCache,
+ bAutoCachePassword,
mount->bCachePim,
readBuffer,
&mount->VolumePassword,
@@ -826,6 +828,13 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
// decrypt the hidden volume header.
if (!(volumeType == TC_VOLUME_TYPE_NORMAL && mount->bProtectHiddenVolume))
{
+ /* in case of mounting with hidden volume protection, we cache both passwords manually after bother outer and hidden volumes are mounted*/
+ if (mount->bProtectHiddenVolume && mount->bCache)
+ {
+ AddPasswordToCache(&mount->VolumePassword, mount->VolumePim, mount->bCachePim);
+ AddPasswordToCache(&mount->ProtectedHidVolPassword, mount->ProtectedHidVolPim, mount->bCachePim);
+ }
+
TCfree (readBuffer);
if (tmpCryptoInfo != NULL)