import grub2-2.02-82.el8_2.1

c8 imports/c8/grub2-2.02-82.el8_2.1
CentOS Sources 3 years ago committed by Andrew Lukoshko
commit 11a606d215

3
.gitignore vendored

@ -0,0 +1,3 @@
SOURCES/grub-2.02.tar.xz
SOURCES/theme.tar.bz2
SOURCES/unifont-5.1.20080820.pcf.gz

@ -0,0 +1,3 @@
3d7eb6eaab28b88cb969ba9ab24af959f4d1b178 SOURCES/grub-2.02.tar.xz
cf0b7763c528902da7e8b05cfa248f20c8825ce5 SOURCES/theme.tar.bz2
87f8600ba24e521b5d20bdf6c4b71af8ae861e3a SOURCES/unifont-5.1.20080820.pcf.gz

@ -0,0 +1,997 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Matthew Garrett <mjg@redhat.com>
Date: Tue, 10 Jul 2012 11:58:52 -0400
Subject: [PATCH] Add support for Linux EFI stub loading.
Also:
commit 71c843745f22f81e16d259e2e19c99bf3c1855c1
Author: Colin Watson <cjwatson@ubuntu.com>
Date: Tue Oct 23 10:40:49 2012 -0400
Don't allow insmod when secure boot is enabled.
Hi,
Fedora's patch to forbid insmod in UEFI Secure Boot environments is fine
as far as it goes. However, the insmod command is not the only way that
modules can be loaded. In particular, the 'normal' command, which
implements the usual GRUB menu and the fully-featured command prompt,
will implicitly load commands not currently loaded into memory. This
permits trivial Secure Boot violations by writing commands implementing
whatever you want to do and pointing $prefix at the malicious code.
I'm currently test-building this patch (replacing your current
grub-2.00-no-insmod-on-sb.patch), but this should be more correct. It
moves the check into grub_dl_load_file.
---
grub-core/Makefile.core.def | 16 +-
grub-core/kern/dl.c | 21 +++
grub-core/kern/efi/efi.c | 28 ++++
grub-core/kern/efi/mm.c | 32 ++++
grub-core/loader/arm64/linux.c | 118 +++++++-------
grub-core/loader/arm64/xen_boot.c | 1 -
grub-core/loader/efi/linux.c | 70 ++++++++
grub-core/loader/i386/efi/linux.c | 335 ++++++++++++++++++++++++++++++++++++++
grub-core/loader/i386/pc/linux.c | 10 +-
include/grub/arm/linux.h | 9 +
include/grub/arm64/linux.h | 10 ++
include/grub/efi/efi.h | 7 +-
include/grub/efi/linux.h | 31 ++++
include/grub/i386/linux.h | 1 +
14 files changed, 620 insertions(+), 69 deletions(-)
create mode 100644 grub-core/loader/efi/linux.c
create mode 100644 grub-core/loader/i386/efi/linux.c
create mode 100644 include/grub/efi/linux.h
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 9590e87d9c0..0b4b0c2122d 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -1626,13 +1626,6 @@ module = {
enable = i386_pc;
};
-
-module = {
- name = linux16;
- common = loader/i386/pc/linux.c;
- enable = x86;
-};
-
module = {
name = ntldr;
i386_pc = loader/i386/pc/ntldr.c;
@@ -1685,7 +1678,9 @@ module = {
module = {
name = linux;
- x86 = loader/i386/linux.c;
+ i386_pc = loader/i386/pc/linux.c;
+ x86_64_efi = loader/i386/efi/linux.c;
+ i386_efi = loader/i386/efi/linux.c;
xen = loader/i386/xen.c;
i386_pc = lib/i386/pc/vesa_modes_table.c;
mips = loader/mips/linux.c;
@@ -1696,9 +1691,14 @@ module = {
arm_efi = loader/arm64/linux.c;
arm_uboot = loader/arm/linux.c;
arm64 = loader/arm64/linux.c;
+ emu = loader/emu/linux.c;
+ fdt = lib/fdt.c;
+
common = loader/linux.c;
common = lib/cmdline.c;
enable = noemu;
+
+ efi = loader/efi/linux.c;
};
module = {
diff --git a/grub-core/kern/dl.c b/grub-core/kern/dl.c
index e394cd96f8c..04e804d1668 100644
--- a/grub-core/kern/dl.c
+++ b/grub-core/kern/dl.c
@@ -38,6 +38,14 @@
#define GRUB_MODULES_MACHINE_READONLY
#endif
+#ifdef GRUB_MACHINE_EMU
+#include <sys/mman.h>
+#endif
+
+#ifdef GRUB_MACHINE_EFI
+#include <grub/efi/efi.h>
+#endif
+
#pragma GCC diagnostic ignored "-Wcast-align"
@@ -686,6 +694,19 @@ grub_dl_load_file (const char *filename)
void *core = 0;
grub_dl_t mod = 0;
+#ifdef GRUB_MACHINE_EFI
+ if (grub_efi_secure_boot ())
+ {
+#if 0
+ /* This is an error, but grub2-mkconfig still generates a pile of
+ * insmod commands, so emitting it would be mostly just obnoxious. */
+ grub_error (GRUB_ERR_ACCESS_DENIED,
+ "Secure Boot forbids loading module from %s", filename);
+#endif
+ return 0;
+ }
+#endif
+
grub_boot_time ("Loading module %s", filename);
file = grub_file_open (filename);
diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
index 708581fcbde..c8a9d8307c0 100644
--- a/grub-core/kern/efi/efi.c
+++ b/grub-core/kern/efi/efi.c
@@ -273,6 +273,34 @@ grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid,
return NULL;
}
+grub_efi_boolean_t
+grub_efi_secure_boot (void)
+{
+ grub_efi_guid_t efi_var_guid = GRUB_EFI_GLOBAL_VARIABLE_GUID;
+ grub_size_t datasize;
+ char *secure_boot = NULL;
+ char *setup_mode = NULL;
+ grub_efi_boolean_t ret = 0;
+
+ secure_boot = grub_efi_get_variable("SecureBoot", &efi_var_guid, &datasize);
+
+ if (datasize != 1 || !secure_boot)
+ goto out;
+
+ setup_mode = grub_efi_get_variable("SetupMode", &efi_var_guid, &datasize);
+
+ if (datasize != 1 || !setup_mode)
+ goto out;
+
+ if (*secure_boot && !*setup_mode)
+ ret = 1;
+
+ out:
+ grub_free (secure_boot);
+ grub_free (setup_mode);
+ return ret;
+}
+
#pragma GCC diagnostic ignored "-Wcast-align"
/* Search the mods section from the PE32/PE32+ image. This code uses
diff --git a/grub-core/kern/efi/mm.c b/grub-core/kern/efi/mm.c
index 42ad7c570a5..5cdf6c943f2 100644
--- a/grub-core/kern/efi/mm.c
+++ b/grub-core/kern/efi/mm.c
@@ -113,6 +113,38 @@ grub_efi_drop_alloc (grub_efi_physical_address_t address,
}
}
+/* Allocate pages below a specified address */
+void *
+grub_efi_allocate_pages_max (grub_efi_physical_address_t max,
+ grub_efi_uintn_t pages)
+{
+ grub_efi_status_t status;
+ grub_efi_boot_services_t *b;
+ grub_efi_physical_address_t address = max;
+
+ if (max > 0xffffffff)
+ return 0;
+
+ b = grub_efi_system_table->boot_services;
+ status = efi_call_4 (b->allocate_pages, GRUB_EFI_ALLOCATE_MAX_ADDRESS, GRUB_EFI_LOADER_DATA, pages, &address);
+
+ if (status != GRUB_EFI_SUCCESS)
+ return 0;
+
+ if (address == 0)
+ {
+ /* Uggh, the address 0 was allocated... This is too annoying,
+ so reallocate another one. */
+ address = max;
+ status = efi_call_4 (b->allocate_pages, GRUB_EFI_ALLOCATE_MAX_ADDRESS, GRUB_EFI_LOADER_DATA, pages, &address);
+ grub_efi_free_pages (0, pages);
+ if (status != GRUB_EFI_SUCCESS)
+ return 0;
+ }
+
+ return (void *) ((grub_addr_t) address);
+}
+
/* Allocate pages. Return the pointer to the first of allocated pages. */
void *
grub_efi_allocate_pages_real (grub_efi_physical_address_t address,
diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c
index 1f86229f86b..6c00af98dce 100644
--- a/grub-core/loader/arm64/linux.c
+++ b/grub-core/loader/arm64/linux.c
@@ -29,6 +29,7 @@
#include <grub/efi/efi.h>
#include <grub/efi/fdtload.h>
#include <grub/efi/memory.h>
+#include <grub/efi/linux.h>
#include <grub/efi/pe32.h>
#include <grub/i18n.h>
#include <grub/lib/cmdline.h>
@@ -40,6 +41,7 @@ static int loaded;
static void *kernel_addr;
static grub_uint64_t kernel_size;
+static grub_uint32_t handover_offset;
static char *linux_args;
static grub_uint32_t cmdline_size;
@@ -66,7 +68,8 @@ grub_armxx_efi_linux_check_image (struct linux_armxx_kernel_header * lh)
static grub_err_t
finalize_params_linux (void)
{
- int node, retval;
+ grub_efi_loaded_image_t *loaded_image = NULL;
+ int node, retval, len;
void *fdt;
@@ -101,79 +104,70 @@ finalize_params_linux (void)
if (grub_fdt_install() != GRUB_ERR_NONE)
goto failure;
- return GRUB_ERR_NONE;
-
-failure:
- grub_fdt_unload();
- return grub_error(GRUB_ERR_BAD_OS, "failed to install/update FDT");
-}
-
-grub_err_t
-grub_armxx_efi_linux_boot_image (grub_addr_t addr, grub_size_t size, char *args)
-{
- grub_efi_memory_mapped_device_path_t *mempath;
- grub_efi_handle_t image_handle;
- grub_efi_boot_services_t *b;
- grub_efi_status_t status;
- grub_efi_loaded_image_t *loaded_image;
- int len;
-
- mempath = grub_malloc (2 * sizeof (grub_efi_memory_mapped_device_path_t));
- if (!mempath)
- return grub_errno;
-
- mempath[0].header.type = GRUB_EFI_HARDWARE_DEVICE_PATH_TYPE;
- mempath[0].header.subtype = GRUB_EFI_MEMORY_MAPPED_DEVICE_PATH_SUBTYPE;
- mempath[0].header.length = grub_cpu_to_le16_compile_time (sizeof (*mempath));
- mempath[0].memory_type = GRUB_EFI_LOADER_DATA;
- mempath[0].start_address = addr;
- mempath[0].end_address = addr + size;
-
- mempath[1].header.type = GRUB_EFI_END_DEVICE_PATH_TYPE;
- mempath[1].header.subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE;
- mempath[1].header.length = sizeof (grub_efi_device_path_t);
-
- b = grub_efi_system_table->boot_services;
- status = b->load_image (0, grub_efi_image_handle,
- (grub_efi_device_path_t *) mempath,
- (void *) addr, size, &image_handle);
- if (status != GRUB_EFI_SUCCESS)
- return grub_error (GRUB_ERR_BAD_OS, "cannot load image");
-
- grub_dprintf ("linux", "linux command line: '%s'\n", args);
+ grub_dprintf ("linux", "Installed/updated FDT configuration table @ %p\n",
+ fdt);
/* Convert command line to UCS-2 */
- loaded_image = grub_efi_get_loaded_image (image_handle);
+ loaded_image = grub_efi_get_loaded_image (grub_efi_image_handle);
+ if (!loaded_image)
+ goto failure;
+
loaded_image->load_options_size = len =
- (grub_strlen (args) + 1) * sizeof (grub_efi_char16_t);
+ (grub_strlen (linux_args) + 1) * sizeof (grub_efi_char16_t);
loaded_image->load_options =
grub_efi_allocate_any_pages (GRUB_EFI_BYTES_TO_PAGES (loaded_image->load_options_size));
if (!loaded_image->load_options)
- return grub_errno;
+ return grub_error(GRUB_ERR_BAD_OS, "failed to create kernel parameters");
loaded_image->load_options_size =
2 * grub_utf8_to_utf16 (loaded_image->load_options, len,
- (grub_uint8_t *) args, len, NULL);
+ (grub_uint8_t *) linux_args, len, NULL);
- grub_dprintf ("linux", "starting image %p\n", image_handle);
- status = b->start_image (image_handle, 0, NULL);
+ return GRUB_ERR_NONE;
- /* When successful, not reached */
- b->unload_image (image_handle);
- grub_efi_free_pages ((grub_addr_t) loaded_image->load_options,
- GRUB_EFI_BYTES_TO_PAGES (loaded_image->load_options_size));
+failure:
+ grub_fdt_unload();
+ return grub_error(GRUB_ERR_BAD_OS, "failed to install/update FDT");
+}
- return grub_errno;
+static void
+free_params (void)
+{
+ grub_efi_loaded_image_t *loaded_image = NULL;
+
+ loaded_image = grub_efi_get_loaded_image (grub_efi_image_handle);
+ if (loaded_image)
+ {
+ if (loaded_image->load_options)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_efi_uintn_t)loaded_image->load_options,
+ GRUB_EFI_BYTES_TO_PAGES (loaded_image->load_options_size));
+ loaded_image->load_options = NULL;
+ loaded_image->load_options_size = 0;
+ }
+}
+
+grub_err_t
+grub_armxx_efi_linux_boot_image (grub_addr_t addr, char *args)
+{
+ grub_err_t retval;
+
+ retval = finalize_params_linux ();
+ if (retval != GRUB_ERR_NONE)
+ return grub_errno;
+
+ grub_dprintf ("linux", "linux command line: '%s'\n", args);
+
+ retval = grub_efi_linux_boot ((char *)addr, handover_offset, (void *)addr);
+
+ /* Never reached... */
+ free_params();
+ return retval;
}
static grub_err_t
grub_linux_boot (void)
{
- if (finalize_params_linux () != GRUB_ERR_NONE)
- return grub_errno;
-
- return (grub_armxx_efi_linux_boot_image((grub_addr_t)kernel_addr,
- kernel_size, linux_args));
+ return grub_armxx_efi_linux_boot_image((grub_addr_t)kernel_addr, linux_args);
}
static grub_err_t
@@ -287,6 +281,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
{
grub_file_t file = 0;
struct linux_armxx_kernel_header lh;
+ struct grub_armxx_linux_pe_header *pe;
grub_dl_ref (my_mod);
@@ -331,6 +326,15 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
grub_dprintf ("linux", "kernel @ %p\n", kernel_addr);
+ if (!grub_linuxefi_secure_validate (kernel_addr, kernel_size))
+ {
+ grub_error (GRUB_ERR_INVALID_COMMAND, N_("%s has invalid signature"), argv[0]);
+ goto fail;
+ }
+
+ pe = (void *)((unsigned long)kernel_addr + lh.hdr_offset);
+ handover_offset = pe->opt.entry_addr;
+
cmdline_size = grub_loader_cmdline_size (argc, argv) + sizeof (LINUX_IMAGE);
linux_args = grub_malloc (cmdline_size);
if (!linux_args)
diff --git a/grub-core/loader/arm64/xen_boot.c b/grub-core/loader/arm64/xen_boot.c
index 1003a0b9997..f35b16caa92 100644
--- a/grub-core/loader/arm64/xen_boot.c
+++ b/grub-core/loader/arm64/xen_boot.c
@@ -266,7 +266,6 @@ xen_boot (void)
return err;
return grub_armxx_efi_linux_boot_image (xen_hypervisor->start,
- xen_hypervisor->size,
xen_hypervisor->cmdline);
}
diff --git a/grub-core/loader/efi/linux.c b/grub-core/loader/efi/linux.c
new file mode 100644
index 00000000000..c24202a5dd1
--- /dev/null
+++ b/grub-core/loader/efi/linux.c
@@ -0,0 +1,70 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2014 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/err.h>
+#include <grub/mm.h>
+#include <grub/types.h>
+#include <grub/cpu/linux.h>
+#include <grub/efi/efi.h>
+#include <grub/efi/pe32.h>
+#include <grub/efi/linux.h>
+
+#define SHIM_LOCK_GUID \
+ { 0x605dab50, 0xe046, 0x4300, {0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23} }
+
+struct grub_efi_shim_lock
+{
+ grub_efi_status_t (*verify) (void *buffer, grub_uint32_t size);
+};
+typedef struct grub_efi_shim_lock grub_efi_shim_lock_t;
+
+grub_efi_boolean_t
+grub_linuxefi_secure_validate (void *data, grub_uint32_t size)
+{
+ grub_efi_guid_t guid = SHIM_LOCK_GUID;
+ grub_efi_shim_lock_t *shim_lock;
+
+ shim_lock = grub_efi_locate_protocol(&guid, NULL);
+
+ if (!shim_lock)
+ return 1;
+
+ if (shim_lock->verify(data, size) == GRUB_EFI_SUCCESS)
+ return 1;
+
+ return 0;
+}
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+typedef void (*handover_func) (void *, grub_efi_system_table_t *, void *);
+
+grub_err_t
+grub_efi_linux_boot (void *kernel_addr, grub_off_t offset,
+ void *kernel_params)
+{
+ handover_func hf;
+
+ hf = (handover_func)((char *)kernel_addr + offset);
+ hf (grub_efi_image_handle, grub_efi_system_table, kernel_params);
+
+ return GRUB_ERR_BUG;
+}
+
+#pragma GCC diagnostic pop
diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
new file mode 100644
index 00000000000..3db82e782df
--- /dev/null
+++ b/grub-core/loader/i386/efi/linux.c
@@ -0,0 +1,335 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2012 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/loader.h>
+#include <grub/file.h>
+#include <grub/err.h>
+#include <grub/types.h>
+#include <grub/mm.h>
+#include <grub/cpu/linux.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/lib/cmdline.h>
+#include <grub/efi/efi.h>
+#include <grub/efi/linux.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_dl_t my_mod;
+static int loaded;
+static void *kernel_mem;
+static grub_uint64_t kernel_size;
+static grub_uint8_t *initrd_mem;
+static grub_uint32_t handover_offset;
+struct linux_kernel_params *params;
+static char *linux_cmdline;
+
+#define BYTES_TO_PAGES(bytes) (((bytes) + 0xfff) >> 12)
+
+static grub_err_t
+grub_linuxefi_boot (void)
+{
+ int offset = 0;
+
+#ifdef __x86_64__
+ offset = 512;
+#endif
+ asm volatile ("cli");
+
+ return grub_efi_linux_boot ((char *)kernel_mem, handover_offset + offset,
+ params);
+}
+
+static grub_err_t
+grub_linuxefi_unload (void)
+{
+ grub_dl_unref (my_mod);
+ loaded = 0;
+ if (initrd_mem)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)initrd_mem,
+ BYTES_TO_PAGES(params->ramdisk_size));
+ if (linux_cmdline)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)
+ linux_cmdline,
+ BYTES_TO_PAGES(params->cmdline_size + 1));
+ if (kernel_mem)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)kernel_mem,
+ BYTES_TO_PAGES(kernel_size));
+ if (params)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)params,
+ BYTES_TO_PAGES(16384));
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t *files = 0;
+ int i, nfiles = 0;
+ grub_size_t size = 0;
+ grub_uint8_t *ptr;
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ if (!loaded)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first"));
+ goto fail;
+ }
+
+ files = grub_zalloc (argc * sizeof (files[0]));
+ if (!files)
+ goto fail;
+
+ for (i = 0; i < argc; i++)
+ {
+ grub_file_filter_disable_compression ();
+ files[i] = grub_file_open (argv[i]);
+ if (! files[i])
+ goto fail;
+ nfiles++;
+ size += ALIGN_UP (grub_file_size (files[i]), 4);
+ }
+
+ initrd_mem = grub_efi_allocate_pages_max (0x3fffffff, BYTES_TO_PAGES(size));
+ if (!initrd_mem)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("can't allocate initrd"));
+ goto fail;
+ }
+
+ params->ramdisk_size = size;
+ params->ramdisk_image = (grub_uint32_t)(grub_addr_t) initrd_mem;
+
+ ptr = initrd_mem;
+
+ for (i = 0; i < nfiles; i++)
+ {
+ grub_ssize_t cursize = grub_file_size (files[i]);
+ if (grub_file_read (files[i], ptr, cursize) != cursize)
+ {
+ if (!grub_errno)
+ grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"),
+ argv[i]);
+ goto fail;
+ }
+ ptr += cursize;
+ grub_memset (ptr, 0, ALIGN_UP_OVERHEAD (cursize, 4));
+ ptr += ALIGN_UP_OVERHEAD (cursize, 4);
+ }
+
+ params->ramdisk_size = size;
+
+ fail:
+ for (i = 0; i < nfiles; i++)
+ grub_file_close (files[i]);
+ grub_free (files);
+
+ if (initrd_mem && grub_errno)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)initrd_mem,
+ BYTES_TO_PAGES(size));
+
+ return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ grub_file_t file = 0;
+ struct linux_kernel_header lh;
+ grub_ssize_t len, start, filelen;
+ void *kernel = NULL;
+
+ grub_dl_ref (my_mod);
+
+ if (argc == 0)
+ {
+ grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+ goto fail;
+ }
+
+ file = grub_file_open (argv[0]);
+ if (! file)
+ goto fail;
+
+ filelen = grub_file_size (file);
+
+ kernel = grub_malloc(filelen);
+
+ if (!kernel)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("cannot allocate kernel buffer"));
+ goto fail;
+ }
+
+ if (grub_file_read (file, kernel, filelen) != filelen)
+ {
+ grub_error (GRUB_ERR_FILE_READ_ERROR, N_("Can't read kernel %s"), argv[0]);
+ goto fail;
+ }
+
+ if (! grub_linuxefi_secure_validate (kernel, filelen))
+ {
+ grub_error (GRUB_ERR_INVALID_COMMAND, N_("%s has invalid signature"),
+ argv[0]);
+ goto fail;
+ }
+
+ params = grub_efi_allocate_pages_max (0x3fffffff, BYTES_TO_PAGES(16384));
+
+ if (! params)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate kernel parameters");
+ goto fail;
+ }
+
+ grub_memset (params, 0, 16384);
+
+ grub_memcpy (&lh, kernel, sizeof (lh));
+
+ if (lh.boot_flag != grub_cpu_to_le16 (0xaa55))
+ {
+ grub_error (GRUB_ERR_BAD_OS, N_("invalid magic number"));
+ goto fail;
+ }
+
+ if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS)
+ {
+ grub_error (GRUB_ERR_BAD_OS, N_("too many setup sectors"));
+ goto fail;
+ }
+
+ if (lh.version < grub_cpu_to_le16 (0x020b))
+ {
+ grub_error (GRUB_ERR_BAD_OS, N_("kernel too old"));
+ goto fail;
+ }
+
+ if (!lh.handover_offset)
+ {
+ grub_error (GRUB_ERR_BAD_OS, N_("kernel doesn't support EFI handover"));
+ goto fail;
+ }
+
+ grub_dprintf ("linux", "setting up cmdline\n");
+ linux_cmdline = grub_efi_allocate_pages_max(0x3fffffff,
+ BYTES_TO_PAGES(lh.cmdline_size + 1));
+
+ if (!linux_cmdline)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("can't allocate cmdline"));
+ goto fail;
+ }
+
+ grub_memcpy (linux_cmdline, LINUX_IMAGE, sizeof (LINUX_IMAGE));
+ grub_create_loader_cmdline (argc, argv,
+ linux_cmdline + sizeof (LINUX_IMAGE) - 1,
+ lh.cmdline_size - (sizeof (LINUX_IMAGE) - 1));
+
+ lh.cmd_line_ptr = (grub_uint32_t)(grub_addr_t)linux_cmdline;
+
+ handover_offset = lh.handover_offset;
+
+ start = (lh.setup_sects + 1) * 512;
+ len = grub_file_size(file) - start;
+
+ kernel_mem = grub_efi_allocate_pages_max(lh.pref_address,
+ BYTES_TO_PAGES(lh.init_size));
+
+ if (!kernel_mem)
+ kernel_mem = grub_efi_allocate_pages_max(0x3fffffff,
+ BYTES_TO_PAGES(lh.init_size));
+
+ if (!kernel_mem)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("can't allocate kernel"));
+ goto fail;
+ }
+
+ grub_memcpy (kernel_mem, (char *)kernel + start, len);
+ grub_loader_set (grub_linuxefi_boot, grub_linuxefi_unload, 0);
+ loaded=1;
+
+ lh.code32_start = (grub_uint32_t)(grub_uint64_t) kernel_mem;
+ grub_memcpy (params, &lh, 2 * 512);
+
+ params->type_of_loader = 0x21;
+
+ fail:
+
+ if (file)
+ grub_file_close (file);
+
+ if (kernel)
+ grub_free (kernel);
+
+ if (grub_errno != GRUB_ERR_NONE)
+ {
+ grub_dl_unref (my_mod);
+ loaded = 0;
+ }
+
+ if (linux_cmdline && !loaded)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)
+ linux_cmdline,
+ BYTES_TO_PAGES(lh.cmdline_size + 1));
+
+ if (kernel_mem && !loaded)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)kernel_mem,
+ BYTES_TO_PAGES(kernel_size));
+
+ if (params && !loaded)
+ grub_efi_free_pages ((grub_efi_physical_address_t)(grub_addr_t)params,
+ BYTES_TO_PAGES(16384));
+
+ return grub_errno;
+}
+
+static grub_command_t cmd_linux, cmd_initrd;
+static grub_command_t cmd_linuxefi, cmd_initrdefi;
+
+GRUB_MOD_INIT(linux)
+{
+ cmd_linux =
+ grub_register_command ("linux", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_linuxefi =
+ grub_register_command ("linuxefi", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_initrd =
+ grub_register_command ("initrd", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ cmd_initrdefi =
+ grub_register_command ("initrdefi", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ my_mod = mod;
+}
+
+GRUB_MOD_FINI(linux)
+{
+ grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_linuxefi);
+ grub_unregister_command (cmd_initrd);
+ grub_unregister_command (cmd_initrdefi);
+}
diff --git a/grub-core/loader/i386/pc/linux.c b/grub-core/loader/i386/pc/linux.c
index b69cb7a3a7f..a3c87cf2fc2 100644
--- a/grub-core/loader/i386/pc/linux.c
+++ b/grub-core/loader/i386/pc/linux.c
@@ -468,14 +468,20 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
return grub_errno;
}
-static grub_command_t cmd_linux, cmd_initrd;
+static grub_command_t cmd_linux, cmd_linux16, cmd_initrd, cmd_initrd16;
GRUB_MOD_INIT(linux16)
{
cmd_linux =
+ grub_register_command ("linux", grub_cmd_linux,
+ 0, N_("Load Linux."));
+ cmd_linux16 =
grub_register_command ("linux16", grub_cmd_linux,
0, N_("Load Linux."));
cmd_initrd =
+ grub_register_command ("initrd", grub_cmd_initrd,
+ 0, N_("Load initrd."));
+ cmd_initrd16 =
grub_register_command ("initrd16", grub_cmd_initrd,
0, N_("Load initrd."));
my_mod = mod;
@@ -484,5 +490,7 @@ GRUB_MOD_INIT(linux16)
GRUB_MOD_FINI(linux16)
{
grub_unregister_command (cmd_linux);
+ grub_unregister_command (cmd_linux16);
grub_unregister_command (cmd_initrd);
+ grub_unregister_command (cmd_initrd16);
}
diff --git a/include/grub/arm/linux.h b/include/grub/arm/linux.h
index 712ba17b9ba..5900fc8a40c 100644
--- a/include/grub/arm/linux.h
+++ b/include/grub/arm/linux.h
@@ -20,6 +20,7 @@
#ifndef GRUB_ARM_LINUX_HEADER
#define GRUB_ARM_LINUX_HEADER 1
+#include <grub/efi/pe32.h>
#include "system.h"
#define GRUB_LINUX_ARM_MAGIC_SIGNATURE 0x016f2818
@@ -34,9 +35,17 @@ struct linux_arm_kernel_header {
grub_uint32_t hdr_offset;
};
+struct grub_arm_linux_pe_header
+{
+ grub_uint32_t magic;
+ struct grub_pe32_coff_header coff;
+ struct grub_pe32_optional_header opt;
+};
+
#if defined(__arm__)
# define GRUB_LINUX_ARMXX_MAGIC_SIGNATURE GRUB_LINUX_ARM_MAGIC_SIGNATURE
# define linux_armxx_kernel_header linux_arm_kernel_header
+# define grub_armxx_linux_pe_header grub_arm_linux_pe_header
#endif
#if defined GRUB_MACHINE_UBOOT
diff --git a/include/grub/arm64/linux.h b/include/grub/arm64/linux.h
index 8655067e039..7b533b57139 100644
--- a/include/grub/arm64/linux.h
+++ b/include/grub/arm64/linux.h
@@ -19,6 +19,8 @@
#ifndef GRUB_ARM64_LINUX_HEADER
#define GRUB_ARM64_LINUX_HEADER 1
+#include <grub/efi/pe32.h>
+
#define GRUB_LINUX_ARM64_MAGIC_SIGNATURE 0x644d5241 /* 'ARM\x64' */
/* From linux/Documentation/arm64/booting.txt */
@@ -36,9 +38,17 @@ struct linux_arm64_kernel_header
grub_uint32_t hdr_offset; /* Offset of PE/COFF header */
};
+struct grub_arm64_linux_pe_header
+{
+ grub_uint32_t magic;
+ struct grub_pe32_coff_header coff;
+ struct grub_pe64_optional_header opt;
+};
+
#if defined(__aarch64__)
# define GRUB_LINUX_ARMXX_MAGIC_SIGNATURE GRUB_LINUX_ARM64_MAGIC_SIGNATURE
# define linux_armxx_kernel_header linux_arm64_kernel_header
+# define grub_armxx_linux_pe_header grub_arm64_linux_pe_header
#endif
#endif /* ! GRUB_ARM64_LINUX_HEADER */
diff --git a/include/grub/efi/efi.h b/include/grub/efi/efi.h
index 2c6648d46fc..1061aee9726 100644
--- a/include/grub/efi/efi.h
+++ b/include/grub/efi/efi.h
@@ -47,6 +47,9 @@ EXPORT_FUNC(grub_efi_allocate_fixed) (grub_efi_physical_address_t address,
grub_efi_uintn_t pages);
void *
EXPORT_FUNC(grub_efi_allocate_any_pages) (grub_efi_uintn_t pages);
+void *
+EXPORT_FUNC(grub_efi_allocate_pages_max) (grub_efi_physical_address_t max,
+ grub_efi_uintn_t pages);
void EXPORT_FUNC(grub_efi_free_pages) (grub_efi_physical_address_t address,
grub_efi_uintn_t pages);
grub_efi_uintn_t EXPORT_FUNC(grub_efi_find_mmap_size) (void);
@@ -82,6 +85,7 @@ EXPORT_FUNC (grub_efi_set_variable) (const char *var,
const grub_efi_guid_t *guid,
void *data,
grub_size_t datasize);
+grub_efi_boolean_t EXPORT_FUNC (grub_efi_secure_boot) (void);
int
EXPORT_FUNC (grub_efi_compare_device_paths) (const grub_efi_device_path_t *dp1,
const grub_efi_device_path_t *dp2);
@@ -95,8 +99,7 @@ void *EXPORT_FUNC(grub_efi_get_firmware_fdt)(void);
grub_err_t EXPORT_FUNC(grub_efi_get_ram_base)(grub_addr_t *);
#include <grub/cpu/linux.h>
grub_err_t grub_armxx_efi_linux_check_image(struct linux_armxx_kernel_header *lh);
-grub_err_t grub_armxx_efi_linux_boot_image(grub_addr_t addr, grub_size_t size,
- char *args);
+grub_err_t grub_armxx_efi_linux_boot_image(grub_addr_t addr, char *args);
#endif
grub_addr_t grub_efi_modules_addr (void);
diff --git a/include/grub/efi/linux.h b/include/grub/efi/linux.h
new file mode 100644
index 00000000000..d9ede36773b
--- /dev/null
+++ b/include/grub/efi/linux.h
@@ -0,0 +1,31 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2014 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef GRUB_EFI_LINUX_HEADER
+#define GRUB_EFI_LINUX_HEADER 1
+
+#include <grub/efi/api.h>
+#include <grub/err.h>
+#include <grub/symbol.h>
+
+grub_efi_boolean_t
+EXPORT_FUNC(grub_linuxefi_secure_validate) (void *data, grub_uint32_t size);
+grub_err_t
+EXPORT_FUNC(grub_efi_linux_boot) (void *kernel_address, grub_off_t offset,
+ void *kernel_param);
+
+#endif /* ! GRUB_EFI_LINUX_HEADER */
diff --git a/include/grub/i386/linux.h b/include/grub/i386/linux.h
index 60c7c3b5e66..bb19dbd5a77 100644
--- a/include/grub/i386/linux.h
+++ b/include/grub/i386/linux.h
@@ -142,6 +142,7 @@ struct linux_i386_kernel_header
grub_uint64_t setup_data;
grub_uint64_t pref_address;
grub_uint32_t init_size;
+ grub_uint32_t handover_offset;
} GRUB_PACKED;
/* Boot parameters for Linux based on 2.6.12. This is used by the setup

@ -0,0 +1,115 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Matthew Garrett <mjg59@coreos.com>
Date: Sun, 9 Aug 2015 16:12:39 -0700
Subject: [PATCH] Rework linux command
We want a single buffer that contains the entire kernel image in order to
perform a TPM measurement. Allocate one and copy the entire kernel into it
before pulling out the individual blocks later on.
---
grub-core/loader/i386/linux.c | 37 ++++++++++++++++++++++++-------------
1 file changed, 24 insertions(+), 13 deletions(-)
diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c
index 9b53d3168f9..f7186be4002 100644
--- a/grub-core/loader/i386/linux.c
+++ b/grub-core/loader/i386/linux.c
@@ -685,13 +685,15 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
{
grub_file_t file = 0;
struct linux_i386_kernel_header lh;
+ grub_uint8_t *linux_params_ptr;
grub_uint8_t setup_sects;
- grub_size_t real_size, prot_size, prot_file_size;
+ grub_size_t real_size, prot_size, prot_file_size, kernel_offset;
grub_ssize_t len;
int i;
grub_size_t align, min_align;
int relocatable;
grub_uint64_t preferred_address = GRUB_LINUX_BZIMAGE_ADDR;
+ grub_uint8_t *kernel = NULL;
grub_dl_ref (my_mod);
@@ -705,7 +707,15 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
if (! file)
goto fail;
- if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
+ len = grub_file_size (file);
+ kernel = grub_malloc (len);
+ if (!kernel)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("cannot allocate kernel buffer"));
+ goto fail;
+ }
+
+ if (grub_file_read (file, kernel, len) != len)
{
if (!grub_errno)
grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
@@ -713,6 +723,9 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
goto fail;
}
+ grub_memcpy (&lh, kernel, sizeof (lh));
+ kernel_offset = sizeof (lh);
+
if (lh.boot_flag != grub_cpu_to_le16_compile_time (0xaa55))
{
grub_error (GRUB_ERR_BAD_OS, "invalid magic number");
@@ -804,6 +817,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
preferred_address))
goto fail;
+
grub_memset (&linux_params, 0, sizeof (linux_params));
grub_memcpy (&linux_params.setup_sects, &lh.setup_sects, sizeof (lh) - 0x1F1);
@@ -812,13 +826,10 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
linux_params.ps_mouse = linux_params.padding10 = 0;
len = sizeof (linux_params) - sizeof (lh);
- if (grub_file_read (file, (char *) &linux_params + sizeof (lh), len) != len)
- {
- if (!grub_errno)
- grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
- argv[0]);
- goto fail;
- }
+
+ linux_params_ptr = (void *)&linux_params;
+ grub_memcpy (linux_params_ptr + sizeof (lh), kernel + kernel_offset, len);
+ kernel_offset += len;
linux_params.type_of_loader = GRUB_LINUX_BOOT_LOADER_TYPE;
@@ -877,7 +888,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
/* The other parameters are filled when booting. */
- grub_file_seek (file, real_size + GRUB_DISK_SECTOR_SIZE);
+ kernel_offset = real_size + GRUB_DISK_SECTOR_SIZE;
grub_dprintf ("linux", "bzImage, setup=0x%x, size=0x%x\n",
(unsigned) real_size, (unsigned) prot_size);
@@ -1025,9 +1036,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
- (sizeof (LINUX_IMAGE) - 1));
len = prot_file_size;
- if (grub_file_read (file, prot_mode_mem, len) != len && !grub_errno)
- grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
- argv[0]);
+ grub_memcpy (prot_mode_mem, kernel + kernel_offset, len);
if (grub_errno == GRUB_ERR_NONE)
{
@@ -1038,6 +1047,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
fail:
+ grub_free (kernel);
+
if (file)
grub_file_close (file);

@ -0,0 +1,98 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Matthew Garrett <mjg59@coreos.com>
Date: Sun, 9 Aug 2015 16:20:58 -0700
Subject: [PATCH] Rework linux16 command
We want a single buffer that contains the entire kernel image in order to
perform a TPM measurement. Allocate one and copy the entire kernel int it
before pulling out the individual blocks later on.
---
grub-core/loader/i386/pc/linux.c | 34 +++++++++++++++++++++-------------
1 file changed, 21 insertions(+), 13 deletions(-)
diff --git a/grub-core/loader/i386/pc/linux.c b/grub-core/loader/i386/pc/linux.c
index a3c87cf2fc2..caa76bee8af 100644
--- a/grub-core/loader/i386/pc/linux.c
+++ b/grub-core/loader/i386/pc/linux.c
@@ -123,13 +123,14 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
grub_file_t file = 0;
struct linux_i386_kernel_header lh;
grub_uint8_t setup_sects;
- grub_size_t real_size;
+ grub_size_t real_size, kernel_offset = 0;
grub_ssize_t len;
int i;
char *grub_linux_prot_chunk;
int grub_linux_is_bzimage;
grub_addr_t grub_linux_prot_target;
grub_err_t err;
+ grub_uint8_t *kernel = NULL;
grub_dl_ref (my_mod);
@@ -143,7 +144,15 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
if (! file)
goto fail;
- if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
+ len = grub_file_size (file);
+ kernel = grub_malloc (len);
+ if (!kernel)
+ {
+ grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("cannot allocate kernel buffer"));
+ goto fail;
+ }
+
+ if (grub_file_read (file, kernel, len) != len)
{
if (!grub_errno)
grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
@@ -151,6 +160,9 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
goto fail;
}
+ grub_memcpy (&lh, kernel, sizeof (lh));
+ kernel_offset = sizeof (lh);
+
if (lh.boot_flag != grub_cpu_to_le16_compile_time (0xaa55))
{
grub_error (GRUB_ERR_BAD_OS, "invalid magic number");
@@ -314,13 +326,9 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
grub_memmove (grub_linux_real_chunk, &lh, sizeof (lh));
len = real_size + GRUB_DISK_SECTOR_SIZE - sizeof (lh);
- if (grub_file_read (file, grub_linux_real_chunk + sizeof (lh), len) != len)
- {
- if (!grub_errno)
- grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
- argv[0]);
- goto fail;
- }
+ grub_memcpy (grub_linux_real_chunk + sizeof (lh), kernel + kernel_offset,
+ len);
+ kernel_offset += len;
if (lh.header != grub_cpu_to_le32_compile_time (GRUB_LINUX_I386_MAGIC_SIGNATURE)
|| grub_le_to_cpu16 (lh.version) < 0x0200)
@@ -355,10 +363,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
}
len = grub_linux16_prot_size;
- if (grub_file_read (file, grub_linux_prot_chunk, grub_linux16_prot_size)
- != (grub_ssize_t) grub_linux16_prot_size && !grub_errno)
- grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
- argv[0]);
+ grub_memcpy (grub_linux_prot_chunk, kernel + kernel_offset, len);
+ kernel_offset += len;
if (grub_errno == GRUB_ERR_NONE)
{
@@ -368,6 +374,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
fail:
+ grub_free (kernel);
+
if (file)
grub_file_close (file);

File diff suppressed because it is too large Load Diff

@ -0,0 +1,516 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 6 Oct 2015 16:09:25 -0400
Subject: [PATCH] Make any of the loaders that link in efi mode honor secure
boot.
And in this case "honor" means "even if somebody does link this in, they
won't register commands if SB is enabled."
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/Makefile.core.def | 1 +
grub-core/commands/iorw.c | 7 +++++
grub-core/commands/memrw.c | 7 +++++
grub-core/kern/dl.c | 1 +
grub-core/kern/efi/efi.c | 34 --------------------
grub-core/kern/efi/sb.c | 64 ++++++++++++++++++++++++++++++++++++++
grub-core/loader/efi/appleloader.c | 7 +++++
grub-core/loader/efi/chainloader.c | 1 +
grub-core/loader/i386/bsd.c | 7 +++++
grub-core/loader/i386/linux.c | 7 +++++
grub-core/loader/i386/pc/linux.c | 7 +++++
grub-core/loader/multiboot.c | 7 +++++
grub-core/loader/xnu.c | 7 +++++
include/grub/efi/efi.h | 1 -
include/grub/efi/sb.h | 29 +++++++++++++++++
include/grub/ia64/linux.h | 0
include/grub/mips/linux.h | 0
include/grub/powerpc/linux.h | 0
include/grub/sparc64/linux.h | 0
grub-core/Makefile.am | 1 +
20 files changed, 153 insertions(+), 35 deletions(-)
create mode 100644 grub-core/kern/efi/sb.c
create mode 100644 include/grub/efi/sb.h
create mode 100644 include/grub/ia64/linux.h
create mode 100644 include/grub/mips/linux.h
create mode 100644 include/grub/powerpc/linux.h
create mode 100644 include/grub/sparc64/linux.h
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 0b4b0c2122d..e92a7ef322f 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -195,6 +195,7 @@ kernel = {
i386_multiboot = kern/i386/pc/acpi.c;
i386_coreboot = kern/acpi.c;
i386_multiboot = kern/acpi.c;
+ common = kern/efi/sb.c;
x86 = kern/i386/tsc.c;
x86 = kern/i386/tsc_pit.c;
diff --git a/grub-core/commands/iorw.c b/grub-core/commands/iorw.c
index a0c164e54f0..41a7f3f0466 100644
--- a/grub-core/commands/iorw.c
+++ b/grub-core/commands/iorw.c
@@ -23,6 +23,7 @@
#include <grub/env.h>
#include <grub/cpu/io.h>
#include <grub/i18n.h>
+#include <grub/efi/sb.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -118,6 +119,9 @@ grub_cmd_write (grub_command_t cmd, int argc, char **argv)
GRUB_MOD_INIT(memrw)
{
+ if (grub_efi_secure_boot())
+ return;
+
cmd_read_byte =
grub_register_extcmd ("inb", grub_cmd_read, 0,
N_("PORT"), N_("Read 8-bit value from PORT."),
@@ -146,6 +150,9 @@ GRUB_MOD_INIT(memrw)
GRUB_MOD_FINI(memrw)
{
+ if (grub_efi_secure_boot())
+ return;
+
grub_unregister_extcmd (cmd_read_byte);
grub_unregister_extcmd (cmd_read_word);
grub_unregister_extcmd (cmd_read_dword);
diff --git a/grub-core/commands/memrw.c b/grub-core/commands/memrw.c
index 98769eadb34..088cbe9e2bc 100644
--- a/grub-core/commands/memrw.c
+++ b/grub-core/commands/memrw.c
@@ -22,6 +22,7 @@
#include <grub/extcmd.h>
#include <grub/env.h>
#include <grub/i18n.h>
+#include <grub/efi/sb.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -120,6 +121,9 @@ grub_cmd_write (grub_command_t cmd, int argc, char **argv)
GRUB_MOD_INIT(memrw)
{
+ if (grub_efi_secure_boot())
+ return;
+
cmd_read_byte =
grub_register_extcmd ("read_byte", grub_cmd_read, 0,
N_("ADDR"), N_("Read 8-bit value from ADDR."),
@@ -148,6 +152,9 @@ GRUB_MOD_INIT(memrw)
GRUB_MOD_FINI(memrw)
{
+ if (grub_efi_secure_boot())
+ return;
+
grub_unregister_extcmd (cmd_read_byte);
grub_unregister_extcmd (cmd_read_word);
grub_unregister_extcmd (cmd_read_dword);
diff --git a/grub-core/kern/dl.c b/grub-core/kern/dl.c
index 04e804d1668..621070918d4 100644
--- a/grub-core/kern/dl.c
+++ b/grub-core/kern/dl.c
@@ -32,6 +32,7 @@
#include <grub/env.h>
#include <grub/cache.h>
#include <grub/i18n.h>
+#include <grub/efi/sb.h>
/* Platforms where modules are in a readonly area of memory. */
#if defined(GRUB_MACHINE_QEMU)
diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c
index 91129e33566..708581fcbde 100644
--- a/grub-core/kern/efi/efi.c
+++ b/grub-core/kern/efi/efi.c
@@ -273,40 +273,6 @@ grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid,
return NULL;
}
-grub_efi_boolean_t
-grub_efi_secure_boot (void)
-{
- grub_efi_guid_t efi_var_guid = GRUB_EFI_GLOBAL_VARIABLE_GUID;
- grub_size_t datasize;
- char *secure_boot = NULL;
- char *setup_mode = NULL;
- grub_efi_boolean_t ret = 0;
-
- secure_boot = grub_efi_get_variable("SecureBoot", &efi_var_guid, &datasize);
- if (datasize != 1 || !secure_boot)
- {
- grub_dprintf ("secureboot", "No SecureBoot variable\n");
- goto out;
- }
- grub_dprintf ("secureboot", "SecureBoot: %d\n", *secure_boot);
-
- setup_mode = grub_efi_get_variable("SetupMode", &efi_var_guid, &datasize);
- if (datasize != 1 || !setup_mode)
- {
- grub_dprintf ("secureboot", "No SetupMode variable\n");
- goto out;
- }
- grub_dprintf ("secureboot", "SetupMode: %d\n", *setup_mode);
-
- if (*secure_boot && !*setup_mode)
- ret = 1;
-
- out:
- grub_free (secure_boot);
- grub_free (setup_mode);
- return ret;
-}
-
#pragma GCC diagnostic ignored "-Wcast-align"
/* Search the mods section from the PE32/PE32+ image. This code uses
diff --git a/grub-core/kern/efi/sb.c b/grub-core/kern/efi/sb.c
new file mode 100644
index 00000000000..d74778b0cac
--- /dev/null
+++ b/grub-core/kern/efi/sb.c
@@ -0,0 +1,64 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2014 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/err.h>
+#include <grub/mm.h>
+#include <grub/types.h>
+#include <grub/cpu/linux.h>
+#include <grub/efi/efi.h>
+#include <grub/efi/pe32.h>
+#include <grub/efi/linux.h>
+#include <grub/efi/sb.h>
+
+int
+grub_efi_secure_boot (void)
+{
+#ifdef GRUB_MACHINE_EFI
+ grub_efi_guid_t efi_var_guid = GRUB_EFI_GLOBAL_VARIABLE_GUID;
+ grub_size_t datasize;
+ char *secure_boot = NULL;
+ char *setup_mode = NULL;
+ grub_efi_boolean_t ret = 0;
+
+ secure_boot = grub_efi_get_variable("SecureBoot", &efi_var_guid, &datasize);
+ if (datasize != 1 || !secure_boot)
+ {
+ grub_dprintf ("secureboot", "No SecureBoot variable\n");
+ goto out;
+ }
+ grub_dprintf ("secureboot", "SecureBoot: %d\n", *secure_boot);
+
+ setup_mode = grub_efi_get_variable("SetupMode", &efi_var_guid, &datasize);
+ if (datasize != 1 || !setup_mode)
+ {
+ grub_dprintf ("secureboot", "No SetupMode variable\n");
+ goto out;
+ }
+ grub_dprintf ("secureboot", "SetupMode: %d\n", *setup_mode);
+
+ if (*secure_boot && !*setup_mode)
+ ret = 1;
+
+ out:
+ grub_free (secure_boot);
+ grub_free (setup_mode);
+ return ret;
+#else
+ return 0;
+#endif
+}
diff --git a/grub-core/loader/efi/appleloader.c b/grub-core/loader/efi/appleloader.c
index 74888c463ba..69c2a10d351 100644
--- a/grub-core/loader/efi/appleloader.c
+++ b/grub-core/loader/efi/appleloader.c
@@ -24,6 +24,7 @@
#include <grub/misc.h>
#include <grub/efi/api.h>
#include <grub/efi/efi.h>
+#include <grub/efi/sb.h>
#include <grub/command.h>
#include <grub/i18n.h>
@@ -227,6 +228,9 @@ static grub_command_t cmd;
GRUB_MOD_INIT(appleloader)
{
+ if (grub_efi_secure_boot())
+ return;
+
cmd = grub_register_command ("appleloader", grub_cmd_appleloader,
N_("[OPTS]"),
/* TRANSLATORS: This command is used on EFI to
@@ -238,5 +242,8 @@ GRUB_MOD_INIT(appleloader)
GRUB_MOD_FINI(appleloader)
{
+ if (grub_efi_secure_boot())
+ return;
+
grub_unregister_command (cmd);
}
diff --git a/grub-core/loader/efi/chainloader.c b/grub-core/loader/efi/chainloader.c
index af2189619a3..5cd9b6e08a8 100644
--- a/grub-core/loader/efi/chainloader.c
+++ b/grub-core/loader/efi/chainloader.c
@@ -34,6 +34,7 @@
#include <grub/efi/disk.h>
#include <grub/efi/pe32.h>
#include <grub/efi/linux.h>
+#include <grub/efi/sb.h>
#include <grub/command.h>
#include <grub/i18n.h>
#include <grub/net.h>
diff --git a/grub-core/loader/i386/bsd.c b/grub-core/loader/i386/bsd.c
index 7f96515da65..87709aa23e8 100644
--- a/grub-core/loader/i386/bsd.c
+++ b/grub-core/loader/i386/bsd.c
@@ -38,6 +38,7 @@
#ifdef GRUB_MACHINE_PCBIOS
#include <grub/machine/int.h>
#endif
+#include <grub/efi/sb.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -2124,6 +2125,9 @@ static grub_command_t cmd_netbsd_module_elf, cmd_openbsd_ramdisk;
GRUB_MOD_INIT (bsd)
{
+ if (grub_efi_secure_boot())
+ return;
+
/* Net and OpenBSD kernels are often compressed. */
grub_dl_load ("gzio");
@@ -2163,6 +2167,9 @@ GRUB_MOD_INIT (bsd)
GRUB_MOD_FINI (bsd)
{
+ if (grub_efi_secure_boot())
+ return;
+
grub_unregister_extcmd (cmd_freebsd);
grub_unregister_extcmd (cmd_openbsd);
grub_unregister_extcmd (cmd_netbsd);
diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c
index f7186be4002..c84747ea857 100644
--- a/grub-core/loader/i386/linux.c
+++ b/grub-core/loader/i386/linux.c
@@ -35,6 +35,7 @@
#include <grub/i18n.h>
#include <grub/lib/cmdline.h>
#include <grub/linux.h>
+#include <grub/efi/sb.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -1156,6 +1157,9 @@ static grub_command_t cmd_linux, cmd_initrd;
GRUB_MOD_INIT(linux)
{
+ if (grub_efi_secure_boot())
+ return;
+
cmd_linux = grub_register_command ("linux", grub_cmd_linux,
0, N_("Load Linux."));
cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd,
@@ -1165,6 +1169,9 @@ GRUB_MOD_INIT(linux)
GRUB_MOD_FINI(linux)
{
+ if (grub_efi_secure_boot())
+ return;
+
grub_unregister_command (cmd_linux);
grub_unregister_command (cmd_initrd);
}
diff --git a/grub-core/loader/i386/pc/linux.c b/grub-core/loader/i386/pc/linux.c
index caa76bee8af..783a3cd93bc 100644
--- a/grub-core/loader/i386/pc/linux.c
+++ b/grub-core/loader/i386/pc/linux.c
@@ -35,6 +35,7 @@
#include <grub/i386/floppy.h>
#include <grub/lib/cmdline.h>
#include <grub/linux.h>
+#include <grub/efi/sb.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -480,6 +481,9 @@ static grub_command_t cmd_linux, cmd_linux16, cmd_initrd, cmd_initrd16;
GRUB_MOD_INIT(linux16)
{
+ if (grub_efi_secure_boot())
+ return;
+
cmd_linux =
grub_register_command ("linux", grub_cmd_linux,
0, N_("Load Linux."));
@@ -497,6 +501,9 @@ GRUB_MOD_INIT(linux16)
GRUB_MOD_FINI(linux16)
{
+ if (grub_efi_secure_boot())
+ return;
+
grub_unregister_command (cmd_linux);
grub_unregister_command (cmd_linux16);
grub_unregister_command (cmd_initrd);
diff --git a/grub-core/loader/multiboot.c b/grub-core/loader/multiboot.c
index 40c67e82489..26df46a4161 100644
--- a/grub-core/loader/multiboot.c
+++ b/grub-core/loader/multiboot.c
@@ -50,6 +50,7 @@
#include <grub/video.h>
#include <grub/memory.h>
#include <grub/i18n.h>
+#include <grub/efi/sb.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -446,6 +447,9 @@ static grub_command_t cmd_multiboot, cmd_module;
GRUB_MOD_INIT(multiboot)
{
+ if (grub_efi_secure_boot())
+ return;
+
cmd_multiboot =
#ifdef GRUB_USE_MULTIBOOT2
grub_register_command ("multiboot2", grub_cmd_multiboot,
@@ -466,6 +470,9 @@ GRUB_MOD_INIT(multiboot)
GRUB_MOD_FINI(multiboot)
{
+ if (grub_efi_secure_boot())
+ return;
+
grub_unregister_command (cmd_multiboot);
grub_unregister_command (cmd_module);
}
diff --git a/grub-core/loader/xnu.c b/grub-core/loader/xnu.c
index c9885b1bcd7..df8dfdb4ba0 100644
--- a/grub-core/loader/xnu.c
+++ b/grub-core/loader/xnu.c
@@ -33,6 +33,7 @@
#include <grub/extcmd.h>
#include <grub/env.h>
#include <grub/i18n.h>
+#include <grub/efi/sb.h>
GRUB_MOD_LICENSE ("GPLv3+");
@@ -1469,6 +1470,9 @@ static grub_extcmd_t cmd_splash;
GRUB_MOD_INIT(xnu)
{
+ if (grub_efi_secure_boot())
+ return;
+
cmd_kernel = grub_register_command ("xnu_kernel", grub_cmd_xnu_kernel, 0,
N_("Load XNU image."));
cmd_kernel64 = grub_register_command ("xnu_kernel64", grub_cmd_xnu_kernel64,
@@ -1509,6 +1513,9 @@ GRUB_MOD_INIT(xnu)
GRUB_MOD_FINI(xnu)
{
+ if (grub_efi_secure_boot())
+ return;
+
#ifndef GRUB_MACHINE_EMU
grub_unregister_command (cmd_resume);
#endif
diff --git a/include/grub/efi/efi.h b/include/grub/efi/efi.h
index 1061aee9726..39480b38674 100644
--- a/include/grub/efi/efi.h
+++ b/include/grub/efi/efi.h
@@ -85,7 +85,6 @@ EXPORT_FUNC (grub_efi_set_variable) (const char *var,
const grub_efi_guid_t *guid,
void *data,
grub_size_t datasize);
-grub_efi_boolean_t EXPORT_FUNC (grub_efi_secure_boot) (void);
int
EXPORT_FUNC (grub_efi_compare_device_paths) (const grub_efi_device_path_t *dp1,
const grub_efi_device_path_t *dp2);
diff --git a/include/grub/efi/sb.h b/include/grub/efi/sb.h
new file mode 100644
index 00000000000..9629fbb0f9e
--- /dev/null
+++ b/include/grub/efi/sb.h
@@ -0,0 +1,29 @@
+/* sb.h - declare functions for EFI Secure Boot support */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2006,2007,2008,2009 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_EFI_SB_HEADER
+#define GRUB_EFI_SB_HEADER 1
+
+#include <grub/types.h>
+#include <grub/dl.h>
+
+/* Functions. */
+int EXPORT_FUNC (grub_efi_secure_boot) (void);
+
+#endif /* ! GRUB_EFI_SB_HEADER */
diff --git a/include/grub/ia64/linux.h b/include/grub/ia64/linux.h
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/include/grub/mips/linux.h b/include/grub/mips/linux.h
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/include/grub/powerpc/linux.h b/include/grub/powerpc/linux.h
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/include/grub/sparc64/linux.h b/include/grub/sparc64/linux.h
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am
index f4ff62b769a..9c69aa88626 100644
--- a/grub-core/Makefile.am
+++ b/grub-core/Makefile.am
@@ -71,6 +71,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/command.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/device.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/disk.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/dl.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/sb.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/env.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/env_private.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/err.h

@ -0,0 +1,263 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 14 Feb 2017 16:18:54 -0500
Subject: [PATCH] Handle multi-arch (64-on-32) boot in linuxefi loader.
Allow booting 64-bit kernels on 32-bit EFI on x86.
Signed-off-by: Peter Jones <pjones@redhat.com>
---
grub-core/loader/efi/linux.c | 9 +++-
grub-core/loader/i386/efi/linux.c | 110 ++++++++++++++++++++++++++------------
include/grub/i386/linux.h | 7 ++-
3 files changed, 89 insertions(+), 37 deletions(-)
diff --git a/grub-core/loader/efi/linux.c b/grub-core/loader/efi/linux.c
index c8ecce6dfd0..0622dfa48d4 100644
--- a/grub-core/loader/efi/linux.c
+++ b/grub-core/loader/efi/linux.c
@@ -69,12 +69,17 @@ grub_linuxefi_secure_validate (void *data, grub_uint32_t size)
typedef void (*handover_func) (void *, grub_efi_system_table_t *, void *);
grub_err_t
-grub_efi_linux_boot (void *kernel_addr, grub_off_t offset,
+grub_efi_linux_boot (void *kernel_addr, grub_off_t handover_offset,
void *kernel_params)
{
handover_func hf;
+ int offset = 0;
- hf = (handover_func)((char *)kernel_addr + offset);
+#ifdef __x86_64__
+ offset = 512;
+#endif
+
+ hf = (handover_func)((char *)kernel_addr + handover_offset + offset);
hf (grub_efi_image_handle, grub_efi_system_table, kernel_params);
return GRUB_ERR_BUG;
diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
index 8db228c5bf5..800c3e54022 100644
--- a/grub-core/loader/i386/efi/linux.c
+++ b/grub-core/loader/i386/efi/linux.c
@@ -44,14 +44,10 @@ static char *linux_cmdline;
static grub_err_t
grub_linuxefi_boot (void)
{
- int offset = 0;
-
-#ifdef __x86_64__
- offset = 512;
-#endif
asm volatile ("cli");