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Explain the logic in secure_mode() better.

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I was getting confused reading it, and I wrote it, so clearly it needs
more commentry.

Signed-off-by: Peter Jones <pjones@redhat.com>
This commit is contained in:
Peter Jones 2014-06-25 10:46:19 -04:00
parent c36d88cb16
commit 86173dba42
1 changed files with 6 additions and 0 deletions
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6
shim.c
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@ -499,6 +499,12 @@ static BOOLEAN secure_mode (void)
return FALSE;
}
/* If we /do/ have "SecureBoot", but /don't/ have "SetupMode",
* then the implementation is bad, but we assume that secure boot is
* enabled according to the status of "SecureBoot". If we have both
* of them, then "SetupMode" may tell us additional data, and we need
* to consider it.
*/
status = get_variable(L"SetupMode", &Data, &len, global_var);
if (status != EFI_SUCCESS)
return TRUE;