packages/grub2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tpcm: support control switch

Browse Source 
Signed-off-by: Qiumiao Zhang <zhangqiumiao1@huawei.com>
This commit is contained in:
Qiumiao Zhang 2023-06-14 15:28:19 +08:00
parent 2b708750bd
commit 8157957a9e
3 changed files with 115 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
grub.patches
View File

@ -448,3 +448,4 @@ Patch0447: backport-fs-iso9660-Avoid-reading-past-the-entry-boundary.patch
Patch0448: backport-net-bootp-Fix-unchecked-return-value.patch
Patch0449: backport-osdep-linux-hostdisk-Modify-sector-by-sysfs-as-disk-sector.patch
Patch0450: skip-verification-when-not-loading-grub.cfg.patch
Patch0451: tpcm-support-control-switch.patch

8
grub2.spec
View File

@ -8,7 +8,7 @@
Name: grub2
Epoch: 1
Version: 2.04
Release: 33
Release: 34
Summary: Bootloader with support for Linux, Multiboot and more
License: GPLv3+
URL: http://www.gnu.org/software/grub/
@ -442,6 +442,12 @@ rm -r /boot/grub2.tmp/ || :
%{_datadir}/man/man*
%changelog
* Wed Jun 14 2023 zhangqiumiao <zhangqiumiao1@huawei.com> - 1:2.04-34
- Type:requirement
- CVE:NA
- SUG:NA
- DESC:tpcm: support control switch
* Wed May 31 2023 zhangqiumiao <zhangqiumiao1@huawei.com> - 1:2.04-33
- Type:bugfix
- CVE:NA

107
tpcm-support-control-switch.patch Normal file
View File

@ -0,0 +1,107 @@
From f8e4b65322175ac66e0b1392826b1c4b99db38a9 Mon Sep 17 00:00:00 2001
From: Qiumiao Zhang <zhangqiumiao1@huawei.com>
Date: Thu, 15 Jun 2023 10:29:32 +0800
Subject: [PATCH] tpcm: support control switch
Signed-off-by: Qiumiao Zhang <zhangqiumiao1@huawei.com>
---
grub-core/commands/efi/tpcm.c | 38 ++++++++++++++++++++++++++---------
include/grub/efi/tpcm.h | 3 ++-
2 files changed, 30 insertions(+), 11 deletions(-)
diff --git a/grub-core/commands/efi/tpcm.c b/grub-core/commands/efi/tpcm.c
index 0803b9b..57a4cea 100644
--- a/grub-core/commands/efi/tpcm.c
+++ b/grub-core/commands/efi/tpcm.c
@@ -25,6 +25,7 @@ static grub_efi_ipmi_interface_protocol_t *tpcm_ipmi;
static grub_efi_uint16_t grub_tcpm_file_type = GRUB_FILE_TYPE_NONE;
static grub_uint32_t bm_stage_base = 2000;
+static grub_efi_uint8_t permissive = 0;
static grub_efi_handle_t
grub_efi_service_binding (grub_efi_guid_t *service_binding_guid)
@@ -325,8 +326,13 @@ grub_tpcm_log_event (unsigned char *buf, grub_size_t size, const char *descripti
status = get_firmware_hash_content (buf, size, output);
if (status != GRUB_EFI_SUCCESS)
{
- grub_printf ("get firmware hash content failed\n");
- err = GRUB_ERR_BUG;
+ if (permissive)
+ grub_dprintf ("tpcm", "tpcm control switch turned off, ignore get firmware hash content failure.\n");
+ else
+ {
+ grub_printf ("get firmware hash content failed\n");
+ err = GRUB_ERR_BUG;
+ }
goto fail;
}
@@ -338,9 +344,14 @@ grub_tpcm_log_event (unsigned char *buf, grub_size_t size, const char *descripti
&response_length, NULL);
if (status != GRUB_EFI_SUCCESS)
{
- err = grub_error (GRUB_ERR_BUG,
- "excute_ipmi_cmd failed, request sub_cmd:0x%x, ret:%lu\n",
- request_data->SubCmd, status);
+ if (permissive)
+ grub_dprintf ("tpcm", "tpcm control switch turned off, ignore excute_ipmi_cmd failure.\n");
+ else
+ {
+ err = grub_error (GRUB_ERR_BUG,
+ "excute_ipmi_cmd failed, request sub_cmd:0x%x, ret:%lu\n",
+ request_data->SubCmd, status);
+ }
goto fail;
}
grub_dprintf ("tpcm", "send tpcm measure request success\n");
@@ -348,10 +359,16 @@ grub_tpcm_log_event (unsigned char *buf, grub_size_t size, const char *descripti
status = grub_tpcm_request_result ();
if (status != GRUB_EFI_SUCCESS)
{
- err = grub_error (GRUB_ERR_BAD_SIGNATURE, "bad tpcm signature");
- goto fail;
+ if (permissive)
+ grub_dprintf ("tpcm", "tpcm control switch turned off, ignore measurement failure.\n");
+ else
+ {
+ err = grub_error (GRUB_ERR_BAD_SIGNATURE, "bad tpcm signature");
+ goto fail;
+ }
}
- grub_dprintf ("tpcm", "tpcm hash verify success, file:%s\n", description);
+ else
+ grub_dprintf ("tpcm", "tpcm hash verify success, file:%s\n", description);
fail:
if (request_data)
@@ -400,9 +417,10 @@ tpcm_ipmi_get_switch (void)
goto out;
}
- if (response_data.ControlResult == IPMI_TPCM_OPEN)
+ if (response_data.ControlResult == IPMI_TPCM_OPEN || response_data.ControlResult == IPMI_TPCM_PERMISSIVE)
{
- grub_dprintf ("tpcm", "tpcm: Enabled\n");
+ permissive = (response_data.ControlResult == IPMI_TPCM_PERMISSIVE) ? 1 : 0;
+ grub_dprintf ("tpcm", "tpcm: Enabled, ControlResult: %d\n", response_data.ControlResult);
return 1;
}
diff --git a/include/grub/efi/tpcm.h b/include/grub/efi/tpcm.h
index eea1387..b0265e2 100644
--- a/include/grub/efi/tpcm.h
+++ b/include/grub/efi/tpcm.h
@@ -158,7 +158,8 @@ typedef enum {
typedef enum {
IPMI_TPCM_UNKNOW,
IPMI_TPCM_OPEN,
- IPMI_TPCM_CLOSE
+ IPMI_TPCM_CLOSE,
+ IPMI_TPCM_PERMISSIVE
} grub_ipmi_tpcm_result_type;
--
2.27.0