forked from pool/grub2
93 lines
2.6 KiB
Diff
93 lines
2.6 KiB
Diff
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From 50f063f61eec3a99565db5f964970a872b642b27 Mon Sep 17 00:00:00 2001
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From: Michael Chang <mchang@suse.com>
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Date: Fri, 11 Dec 2020 22:33:52 +0800
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Subject: [PATCH 41/46] squash! Add secureboot support on efi chainloader
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Use grub_efi_get_secureboot to get secure boot status
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---
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grub-core/loader/efi/chainloader.c | 54 ++----------------------------
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1 file changed, 2 insertions(+), 52 deletions(-)
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diff --git a/grub-core/loader/efi/chainloader.c b/grub-core/loader/efi/chainloader.c
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index 8272df3cd..559247abf 100644
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--- a/grub-core/loader/efi/chainloader.c
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+++ b/grub-core/loader/efi/chainloader.c
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@@ -46,6 +46,7 @@
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#ifdef SUPPORT_SECURE_BOOT
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#include <grub/efi/pe32.h>
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+#include <grub/efi/sb.h>
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#endif
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GRUB_MOD_LICENSE ("GPLv3+");
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@@ -282,57 +283,6 @@ grub_secure_validate (void *data, grub_efi_uint32_t size)
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return 0;
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}
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-static grub_efi_boolean_t
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-grub_secure_mode (void)
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-{
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- grub_efi_guid_t efi_var_guid = GRUB_EFI_GLOBAL_VARIABLE_GUID;
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- grub_uint8_t *data;
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- grub_size_t datasize;
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-
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- data = grub_efi_get_variable ("SecureBoot", &efi_var_guid, &datasize);
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-
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- if (data)
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- {
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- grub_dprintf ("chain", "SecureBoot: %d, datasize %d\n", (int)*data, (int)datasize);
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- }
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-
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- if (data && (datasize == 1))
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- {
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- if (*data != 1)
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- {
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- grub_dprintf ("chain", "secure boot not enabled\n");
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- return 0;
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- }
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- }
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- else
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- {
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- grub_dprintf ("chain", "unknown secure boot status\n");
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- return 0;
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- }
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-
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- grub_free (data);
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-
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- data = grub_efi_get_variable ("SetupMode", &efi_var_guid, &datasize);
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-
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- if (data)
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- {
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- grub_dprintf ("chain", "SetupMode: %d, datasize %d\n", (int)*data, (int)datasize);
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- }
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-
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- if (data && (datasize == 1))
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- {
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- if (*data == 1)
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- {
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- grub_dprintf ("chain", "platform in setup mode\n");
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- return 0;
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- }
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- }
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-
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- grub_free (data);
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-
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- return 1;
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-}
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-
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static grub_efi_boolean_t
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read_header (void *data, grub_efi_uint32_t size, pe_coff_loader_image_context_t *context)
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{
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@@ -837,7 +787,7 @@ grub_cmd_chainloader (grub_command_t cmd __attribute__ ((unused)),
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#ifdef SUPPORT_SECURE_BOOT
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/* FIXME is secure boot possible also with universal binaries? */
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- if (debug_secureboot || (grub_secure_mode() && grub_secure_validate ((void *)address, fsize)))
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+ if (debug_secureboot || (grub_efi_get_secureboot () == GRUB_EFI_SECUREBOOT_MODE_ENABLED && grub_secure_validate ((void *)address, fsize)))
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{
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grub_file_close (file);
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grub_loader_set (grub_secureboot_chainloader_boot, grub_secureboot_chainloader_unload, 0);
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--
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2.26.2
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