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Windows: Fix failed EFI detection on some PCs where BootOrder variable is not defined.

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we now report that EFI is not support only when GetFirmwareEnvironmentVariable fails with error ERROR_INVALID_FUNCTION.

Proposed by @kriegste on https://github.com/veracrypt/VeraCrypt/issues/360
This commit is contained in:
Mounir IDRASSI
2024-09-16 23:11:37 +02:00
parent 3a1c8bac59
commit eb0eec7b39
1 changed files with 1 additions and 1 deletions
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src/Common/BootEncryption.cpp
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@@ -2636,7 +2636,7 @@ namespace VeraCrypt
bool EfiBoot::IsEfiBoot() { bool EfiBoot::IsEfiBoot() {
DWORD BootOrderLen; DWORD BootOrderLen;
BootOrderLen = GetFirmwareEnvironmentVariable(L"BootOrder", EfiVarGuid, tempBuf, sizeof(tempBuf)); BootOrderLen = GetFirmwareEnvironmentVariable(L"BootOrder", EfiVarGuid, tempBuf, sizeof(tempBuf));
return BootOrderLen != 0; return (BootOrderLen != 0) || (GetLastError() != ERROR_INVALID_FUNCTION);
} }
void EfiBoot::DeleteStartExec(uint16 statrtOrderNum, wchar_t* type) { void EfiBoot::DeleteStartExec(uint16 statrtOrderNum, wchar_t* type) {