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Clean up checks for MokManager entry

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Add a helper function and tidy up the calls for getting into MokManager
This commit is contained in:
Matthew Garrett 2012-10-23 11:36:02 -04:00
parent 59f2e0a289
commit 4e3721a0b5
1 changed files with 15 additions and 17 deletions
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28
shim.c
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@ -1035,32 +1035,30 @@ done:
return efi_status; return efi_status;
} }
EFI_STATUS check_mok_request(EFI_HANDLE image_handle) static BOOLEAN check_var(CHAR16 *varname)
{ {
EFI_STATUS efi_status;
EFI_GUID shim_lock_guid = SHIM_LOCK_GUID; EFI_GUID shim_lock_guid = SHIM_LOCK_GUID;
EFI_STATUS moknew_status, moksb_status, mokpw_status, efi_status;
UINTN size = sizeof(UINT32); UINTN size = sizeof(UINT32);
UINT32 MokVar; UINT32 MokVar;
UINT32 attributes; UINT32 attributes;
moknew_status = uefi_call_wrapper(RT->GetVariable, 5, L"MokNew", efi_status = uefi_call_wrapper(RT->GetVariable, 5, varname,
&shim_lock_guid, &attributes, &shim_lock_guid, &attributes,
&size, (void *)&MokVar); &size, (void *)&MokVar);
moksb_status = uefi_call_wrapper(RT->GetVariable, 5, L"MokSB", if (efi_status == EFI_SUCCESS || efi_status == EFI_BUFFER_TOO_SMALL)
&shim_lock_guid, &attributes, return TRUE;
&size, (void *)&MokVar);
mokpw_status = uefi_call_wrapper(RT->GetVariable, 5, L"MokPW", return FALSE;
&shim_lock_guid, &attributes, }
&size, (void *)&MokVar);
if (moknew_status == EFI_SUCCESS || EFI_STATUS check_mok_request(EFI_HANDLE image_handle)
moknew_status == EFI_BUFFER_TOO_SMALL || {
moksb_status == EFI_SUCCESS || EFI_STATUS efi_status;
moksb_status == EFI_BUFFER_TOO_SMALL ||
mokpw_status == EFI_SUCCESS || if (check_var(L"MokNew") || check_var(L"MokSB") ||
mokpw_status == EFI_BUFFER_TOO_SMALL) { check_var(L"MokPW") || check_var(L"MokAuth")) {
efi_status = start_image(image_handle, MOK_MANAGER); efi_status = start_image(image_handle, MOK_MANAGER);
if (efi_status != EFI_SUCCESS) { if (efi_status != EFI_SUCCESS) {