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| author | kavsrf <kavsrf@gmail.com> | 2017-06-13 17:19:47 +0300 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2017-06-18 15:51:59 +0200 |
| commit | 0ba0723c769f95d312835967c47e34e444fea368 (patch) | |
| tree | 91672b6c6b8de151ddaf1ee62cd1daed781cdaad /Library/CommonLib/EfiBml.c | |
| parent | 3058711f8b12cf11585e0eda2a1b573f0d871667 (diff) | |
| download | VeraCrypt-DCS-0ba0723c769f95d312835967c47e34e444fea368.tar.gz VeraCrypt-DCS-0ba0723c769f95d312835967c47e34e444fea368.zip | |
solution of HP problem via DrverOrder and BML modified driver
Diffstat (limited to 'Library/CommonLib/EfiBml.c')
| -rw-r--r-- | Library/CommonLib/EfiBml.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/Library/CommonLib/EfiBml.c b/Library/CommonLib/EfiBml.c new file mode 100644 index 0000000..184ca75 --- /dev/null +++ b/Library/CommonLib/EfiBml.c @@ -0,0 +1,57 @@ +/** @file
+EFI DCS BML helpers routines/wrappers
+
+Copyright (c) 2016. Disk Cryptography Services for EFI (DCS), Alex Kolotnikov
+Copyright (c) 2016. VeraCrypt, Mounir IDRASSI
+
+This program and the accompanying materials are licensed and made available
+under the terms and conditions of the GNU Lesser General Public License, version 3.0 (LGPL-3.0).
+
+The full text of the license may be found at
+https://opensource.org/licenses/LGPL-3.0
+**/
+
+#include <Library/CommonLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Protocol/DcsBmlProto.h>
+
+//////////////////////////////////////////////////////////////////////////
+// BML
+//////////////////////////////////////////////////////////////////////////
+EFI_HANDLE* gBmlHandles = NULL;
+UINTN gBmlCount = 0;
+EFI_DCSBML_PROTOCOL* gBml = NULL;
+EFI_GUID gBmlGuid = EFI_DCSBML_INTERFACE_PROTOCOL_GUID;
+
+EFI_STATUS
+BmlSelect(
+ IN UINTN index) {
+ if (index < gBmlCount) {
+ return gBS->HandleProtocol(gBmlHandles[index], &gBmlGuid, (VOID**)&gBml);
+ }
+ return EFI_NOT_FOUND;
+}
+
+EFI_STATUS
+InitBml() {
+ EFI_STATUS res;
+ // BML control if supported
+ res = EfiGetHandles(ByProtocol, &gBmlGuid, 0, &gBmlHandles, &gBmlCount);
+ if (gBmlCount > 0) {
+ return BmlSelect(gBmlCount - 1);
+ }
+ return EFI_NOT_FOUND;
+}
+
+
+EFI_STATUS
+BmlLock(
+ IN BOOLEAN lock
+ )
+{
+ if (gBml != NULL) {
+ return gBml->BootMenuLock(gBml, lock);
+ }
+ return EFI_UNSUPPORTED;
+}
+
|