From 86173dba42ad5ae002ac99cc515e60104da2245c Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Wed, 25 Jun 2014 10:46:19 -0400
Subject: [PATCH 39/74] Explain the logic in secure_mode() better.
I was getting confused reading it, and I wrote it, so clearly it needs
more commentry.
Signed-off-by: Peter Jones <pjones@redhat.com>
---
shim.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/shim.c b/shim.c
index 72d6072..210e778 100644
--- a/shim.c
+++ b/shim.c
@@ -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;
--
1.9.3