Initial commit from Ventoy@7cbdc5c

This commit is contained in:
2026-08-23 00:38:40 -04:00
commit e9a7a16826
2848 changed files with 439164 additions and 0 deletions
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# Helper library for grub-mkconfig
# Copyright (C) 2007,2008,2009,2010 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/>.
prefix="@prefix@"
exec_prefix="@exec_prefix@"
datarootdir="@datarootdir@"
datadir="@datadir@"
bindir="@bindir@"
sbindir="@sbindir@"
if [ "x$pkgdatadir" = x ]; then
pkgdatadir="${datadir}/@PACKAGE@"
fi
if test "x$grub_probe" = x; then
grub_probe="${sbindir}/@grub_probe@"
fi
if test "x$grub_file" = x; then
grub_file="${bindir}/@grub_file@"
fi
if test "x$grub_mkrelpath" = x; then
grub_mkrelpath="${bindir}/@grub_mkrelpath@"
fi
if which gettext >/dev/null 2>/dev/null; then
:
else
gettext () {
printf "%s" "$@"
}
fi
grub_warn ()
{
echo "$(gettext "Warning:")" "$@" >&2
}
make_system_path_relative_to_its_root ()
{
"${grub_mkrelpath}" "$1"
}
is_path_readable_by_grub ()
{
path="$1"
# abort if path doesn't exist
if test -e "$path" ; then : ;else
return 1
fi
# abort if file is in a filesystem we can't read
if "${grub_probe}" -t fs "$path" > /dev/null 2>&1 ; then : ; else
return 1
fi
# ... or if we can't figure out the abstraction module, for example if
# memberlist fails on an LVM volume group.
if abstractions="`"${grub_probe}" -t abstraction "$path"`" 2> /dev/null ; then
:
else
return 1
fi
if [ x$GRUB_ENABLE_CRYPTODISK = xy ]; then
return 0
fi
for abstraction in $abstractions; do
if [ "x$abstraction" = xcryptodisk ]; then
return 1
fi
done
return 0
}
convert_system_path_to_grub_path ()
{
path="$1"
grub_warn "convert_system_path_to_grub_path() is deprecated. Use prepare_grub_to_access_device() instead."
# abort if GRUB can't access the path
if is_path_readable_by_grub "${path}" ; then : ; else
return 1
fi
if drive="`"${grub_probe}" -t drive "$path"`" ; then : ; else
return 1
fi
if relative_path="`make_system_path_relative_to_its_root "$path"`" ; then : ; else
return 1
fi
echo "${drive}${relative_path}"
}
save_default_entry ()
{
if [ "x${GRUB_SAVEDEFAULT}" = "xtrue" ] ; then
cat << EOF
savedefault
EOF
fi
}
prepare_grub_to_access_device ()
{
old_ifs="$IFS"
IFS='
'
:<<\EOF
partmap="`"${grub_probe}" --device $@ --target=partmap`"
for module in ${partmap} ; do
case "${module}" in
netbsd | openbsd)
echo "insmod part_bsd";;
*)
echo "insmod part_${module}";;
esac
done
EOF
# Abstraction modules aren't auto-loaded.
abstraction="`"${grub_probe}" --device $@ --target=abstraction`"
for module in ${abstraction} ; do
echo "insmod ${module}"
done
# fs="`"${grub_probe}" --device $@ --target=fs`"
# for module in ${fs} ; do
# echo "insmod ${module}"
# done
if [ x$GRUB_ENABLE_CRYPTODISK = xy ]; then
for uuid in `"${grub_probe}" --device $@ --target=cryptodisk_uuid`; do
echo "cryptomount -u $uuid"
done
fi
# If there's a filesystem UUID that GRUB is capable of identifying, use it;
# otherwise set root as per value in device.map.
fs_hint="`"${grub_probe}" --device $@ --target=compatibility_hint`"
if [ "x$fs_hint" != x ]; then
echo "set root='$fs_hint'"
fi
if fs_uuid="`"${grub_probe}" --device $@ --target=fs_uuid 2> /dev/null`" ; then
hints="`"${grub_probe}" --device $@ --target=hints_string 2> /dev/null`" || hints=
echo "if [ x\$feature_platform_search_hint = xy ]; then"
echo " search --no-floppy --fs-uuid --set=root ${hints} ${fs_uuid}"
echo "else"
echo " search --no-floppy --fs-uuid --set=root ${fs_uuid}"
echo "fi"
fi
IFS="$old_ifs"
}
grub_get_device_id ()
{
old_ifs="$IFS"
IFS='
'
device="$1"
if fs_uuid="`"${grub_probe}" --device ${device} --target=fs_uuid 2> /dev/null`" ; then
echo "$fs_uuid";
else
echo $device |sed 's, ,_,g'
fi
IFS="$old_ifs"
}
grub_file_is_not_garbage ()
{
if test -f "$1" ; then
case "$1" in
*.dpkg-*) return 1 ;; # debian dpkg
*.rpmsave|*.rpmnew) return 1 ;;
README*|*/README*) return 1 ;; # documentation
*.sig) return 1 ;; # signatures
esac
else
return 1
fi
return 0
}
version_sort ()
{
case $version_sort_sort_has_v in
yes)
LC_ALL=C sort -V;;
no)
LC_ALL=C sort -n;;
*)
if sort -V </dev/null > /dev/null 2>&1; then
version_sort_sort_has_v=yes
LC_ALL=C sort -V
else
version_sort_sort_has_v=no
LC_ALL=C sort -n
fi;;
esac
}
version_test_numeric ()
{
version_test_numeric_a="$1"
version_test_numeric_cmp="$2"
version_test_numeric_b="$3"
if [ "$version_test_numeric_a" = "$version_test_numeric_b" ] ; then
case "$version_test_numeric_cmp" in
ge|eq|le) return 0 ;;
gt|lt) return 1 ;;
esac
fi
if [ "$version_test_numeric_cmp" = "lt" ] ; then
version_test_numeric_c="$version_test_numeric_a"
version_test_numeric_a="$version_test_numeric_b"
version_test_numeric_b="$version_test_numeric_c"
fi
if (echo "$version_test_numeric_a" ; echo "$version_test_numeric_b") | version_sort | head -n 1 | grep -qx "$version_test_numeric_b" ; then
return 0
else
return 1
fi
}
version_test_gt ()
{
version_test_gt_a="`echo "$1" | sed -e "s/[^-]*-//"`"
version_test_gt_b="`echo "$2" | sed -e "s/[^-]*-//"`"
version_test_gt_cmp=gt
if [ "x$version_test_gt_b" = "x" ] ; then
return 0
fi
case "$version_test_gt_a:$version_test_gt_b" in
*.old:*.old) ;;
*.old:*) version_test_gt_a="`echo "$version_test_gt_a" | sed -e 's/\.old$//'`" ; version_test_gt_cmp=gt ;;
*:*.old) version_test_gt_b="`echo "$version_test_gt_b" | sed -e 's/\.old$//'`" ; version_test_gt_cmp=ge ;;
esac
version_test_numeric "$version_test_gt_a" "$version_test_gt_cmp" "$version_test_gt_b"
return "$?"
}
version_find_latest ()
{
version_find_latest_a=""
for i in "$@" ; do
if version_test_gt "$i" "$version_find_latest_a" ; then
version_find_latest_a="$i"
fi
done
echo "$version_find_latest_a"
}
# One layer of quotation is eaten by "" and the second by sed; so this turns
# ' into \'.
grub_quote () {
sed "s/'/'\\\\''/g"
}
gettext_quoted () {
gettext "$@" | grub_quote
}
# Run the first argument through gettext, and then pass that and all
# remaining arguments to printf. This is a useful abbreviation and tends to
# be easier to type.
gettext_printf () {
gettext_printf_format="$1"
shift
printf "$(gettext "$gettext_printf_format")" "$@"
}
uses_abstraction () {
device="$1"
old_ifs="$IFS"
IFS='
'
abstraction="`"${grub_probe}" --device ${device} --target=abstraction`"
for module in ${abstraction}; do
if test "x${module}" = "x$2"; then
IFS="$old_ifs"
return 0
fi
done
IFS="$old_ifs"
return 1
}
print_option_help () {
if test x$print_option_help_wc = x; then
if wc -L </dev/null > /dev/null 2>&1; then
print_option_help_wc=-L
elif wc -m </dev/null > /dev/null 2>&1; then
print_option_help_wc=-m
else
print_option_help_wc=-b
fi
fi
if test x$grub_have_fmt = x; then
if fmt -w 40 </dev/null > /dev/null 2>&1; then
grub_have_fmt=y;
else
grub_have_fmt=n;
fi
fi
print_option_help_lead=" $1"
print_option_help_lspace="$(echo "$print_option_help_lead" | wc $print_option_help_wc)"
print_option_help_fill="$((26 - print_option_help_lspace))"
printf "%s" "$print_option_help_lead"
if test $print_option_help_fill -le 0; then
print_option_help_nl=y
echo
else
print_option_help_i=0;
while test $print_option_help_i -lt $print_option_help_fill; do
printf " "
print_option_help_i=$((print_option_help_i+1))
done
print_option_help_nl=n
fi
if test x$grub_have_fmt = xy; then
print_option_help_split="$(echo "$2" | fmt -w 50)"
else
print_option_help_split="$2"
fi
if test x$print_option_help_nl = xy; then
echo "$print_option_help_split" | awk \
'{ print " " $0; }'
else
echo "$print_option_help_split" | awk 'BEGIN { n = 0 }
{ if (n == 1) print " " $0; else print $0; n = 1 ; }'
fi
}
grub_fmt () {
if test x$grub_have_fmt = x; then
if fmt -w 40 < /dev/null > /dev/null; then
grub_have_fmt=y;
else
grub_have_fmt=n;
fi
fi
if test x$grub_have_fmt = xy; then
fmt
else
cat
fi
}
grub_tab=" "
grub_add_tab () {
sed -e "s/^/$grub_tab/"
}
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/*
* Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2013 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 <config.h>
#include <grub/util/install.h>
#include <grub/emu/config.h>
#include <grub/util/misc.h>
#include <string.h>
#include <errno.h>
#pragma GCC diagnostic ignored "-Wmissing-prototypes"
#pragma GCC diagnostic ignored "-Wmissing-declarations"
#include <argp.h>
#pragma GCC diagnostic error "-Wmissing-prototypes"
#pragma GCC diagnostic error "-Wmissing-declarations"
static char *rootdir = NULL, *subdir = NULL;
static char *debug_image = NULL;
enum
{
OPTION_NET_DIRECTORY = 0x301,
OPTION_SUBDIR,
OPTION_DEBUG,
OPTION_DEBUG_IMAGE
};
static struct argp_option options[] = {
GRUB_INSTALL_OPTIONS,
{"net-directory", OPTION_NET_DIRECTORY, N_("DIR"),
0, N_("root directory of TFTP server"), 2},
{"subdir", OPTION_SUBDIR, N_("DIR"),
0, N_("relative subdirectory on network server"), 2},
{"debug", OPTION_DEBUG, 0, OPTION_HIDDEN, 0, 2},
{"debug-image", OPTION_DEBUG_IMAGE, N_("STRING"), OPTION_HIDDEN, 0, 2},
{0, 0, 0, 0, 0, 0}
};
static error_t
argp_parser (int key, char *arg, struct argp_state *state)
{
if (grub_install_parse (key, arg))
return 0;
switch (key)
{
case OPTION_NET_DIRECTORY:
free (rootdir);
rootdir = xstrdup (arg);
return 0;
case OPTION_SUBDIR:
free (subdir);
subdir = xstrdup (arg);
return 0;
/* This is an undocumented feature... */
case OPTION_DEBUG:
verbosity++;
return 0;
case OPTION_DEBUG_IMAGE:
free (debug_image);
debug_image = xstrdup (arg);
return 0;
case ARGP_KEY_ARG:
default:
return ARGP_ERR_UNKNOWN;
}
}
struct argp argp = {
options, argp_parser, NULL,
"\v"N_("Prepares GRUB network boot images at net_directory/subdir "
"assuming net_directory being TFTP root."),
NULL, grub_install_help_filter, NULL
};
static char *base;
static const struct
{
const char *mkimage_target;
const char *netmodule;
const char *ext;
} targets[GRUB_INSTALL_PLATFORM_MAX] =
{
[GRUB_INSTALL_PLATFORM_I386_PC] = { "i386-pc-pxe", "pxe", ".0" },
[GRUB_INSTALL_PLATFORM_SPARC64_IEEE1275] = { "sparc64-ieee1275-aout", "ofnet", ".img" },
[GRUB_INSTALL_PLATFORM_I386_IEEE1275] = { "i386-ieee1275", "ofnet", ".elf" },
[GRUB_INSTALL_PLATFORM_POWERPC_IEEE1275] = { "powerpc-ieee1275", "ofnet", ".elf" },
[GRUB_INSTALL_PLATFORM_I386_EFI] = { "i386-efi", "efinet", ".efi" },
[GRUB_INSTALL_PLATFORM_X86_64_EFI] = { "x86_64-efi", "efinet", ".efi" },
[GRUB_INSTALL_PLATFORM_IA64_EFI] = { "ia64-efi", "efinet", ".efi" },
[GRUB_INSTALL_PLATFORM_ARM_EFI] = { "arm-efi", "efinet", ".efi" },
[GRUB_INSTALL_PLATFORM_ARM64_EFI] = { "arm64-efi", "efinet", ".efi" },
[GRUB_INSTALL_PLATFORM_MIPS64EL_EFI] = { "mips64el-efi", "efinet", ".efi" },
[GRUB_INSTALL_PLATFORM_RISCV32_EFI] = { "riscv32-efi", "efinet", ".efi" },
[GRUB_INSTALL_PLATFORM_RISCV64_EFI] = { "riscv64-efi", "efinet", ".efi" },
};
static void
process_input_dir (const char *input_dir, enum grub_install_plat platform)
{
char *platsub = grub_install_get_platform_name (platform);
char *grubdir = grub_util_path_concat (3, rootdir, subdir, platsub);
char *load_cfg = grub_util_path_concat (2, grubdir, "load.cfg");
char *prefix;
char *output;
char *grub_cfg;
FILE *cfg;
grub_install_copy_files (input_dir, base, platform);
grub_util_unlink (load_cfg);
if (debug_image)
{
FILE *f = grub_util_fopen (load_cfg, "wb");
if (!f)
grub_util_error (_("cannot open `%s': %s"), load_cfg,
strerror (errno));
fprintf (f, "set debug='%s'\n", debug_image);
fclose (f);
}
else
{
free (load_cfg);
load_cfg = 0;
}
prefix = xasprintf ("/%s", subdir);
if (!targets[platform].mkimage_target)
grub_util_error (_("unsupported platform %s"), platsub);
grub_cfg = grub_util_path_concat (2, grubdir, "grub.cfg");
cfg = grub_util_fopen (grub_cfg, "wb");
if (!cfg)
grub_util_error (_("cannot open `%s': %s"), grub_cfg,
strerror (errno));
fprintf (cfg, "source %s/grub.cfg", subdir);
fclose (cfg);
grub_install_push_module (targets[platform].netmodule);
output = grub_util_path_concat_ext (2, grubdir, "core", targets[platform].ext);
grub_install_make_image_wrap (input_dir, prefix, output,
0, load_cfg,
targets[platform].mkimage_target, 0);
grub_install_pop_module ();
/* TRANSLATORS: First %s is replaced by platform name. Second one by filename. */
printf (_("Netboot directory for %s created. Configure your DHCP server to point to %s\n"),
platsub, output);
free (platsub);
free (output);
free (prefix);
free (grub_cfg);
free (grubdir);
}
int
main (int argc, char *argv[])
{
const char *pkglibdir;
grub_util_host_init (&argc, &argv);
grub_util_disable_fd_syncs ();
rootdir = xstrdup ("/srv/tftp");
pkglibdir = grub_util_get_pkglibdir ();
subdir = grub_util_path_concat (2, GRUB_BOOT_DIR_NAME, GRUB_DIR_NAME);
argp_parse (&argp, argc, argv, 0, 0, 0);
base = grub_util_path_concat (2, rootdir, subdir);
/* Create the GRUB directory if it is not present. */
grub_install_mkdir_p (base);
grub_install_push_module ("tftp");
if (!grub_install_source_directory)
{
enum grub_install_plat plat;
for (plat = 0; plat < GRUB_INSTALL_PLATFORM_MAX; plat++)
if (targets[plat].mkimage_target)
{
char *platdir = grub_util_path_concat (2, pkglibdir,
grub_install_get_platform_name (plat));
grub_util_info ("Looking for `%s'", platdir);
if (!grub_util_is_directory (platdir))
{
free (platdir);
continue;
}
process_input_dir (platdir, plat);
}
}
else
{
enum grub_install_plat plat;
plat = grub_install_get_target (grub_install_source_directory);
process_input_dir (grub_install_source_directory, plat);
}
return 0;
}
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#include <stdio.h>
#include <string.h>
#include <grub/elf.h>
#include <grub/module_verifier.h>
#include <grub/misc.h>
#include <grub/util/misc.h>
struct grub_module_verifier_arch archs[] = {
{ "i386", 4, 0, EM_386, GRUB_MODULE_VERIFY_SUPPORTS_REL, (int[]){
R_386_32,
R_386_PC32,
-1
} },
{ "x86_64", 8, 0, EM_X86_64, GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_X86_64_64,
R_X86_64_PC64,
/* R_X86_64_32, R_X86_64_32S are supported but shouldn't be used because of their limited range. */
-1
}, (int[]){
R_X86_64_PC32,
R_X86_64_PLT32,
-1
}
},
{ "powerpc", 4, 1, EM_PPC, GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
GRUB_ELF_R_PPC_ADDR16_LO,
GRUB_ELF_R_PPC_REL24, /* It has limited range but GRUB adds trampolines when necessarry. */
GRUB_ELF_R_PPC_ADDR16_HA,
GRUB_ELF_R_PPC_ADDR32,
GRUB_ELF_R_PPC_REL32,
GRUB_ELF_R_PPC_PLTREL24,
-1
} },
{ "sparc64", 8, 1, EM_SPARCV9, GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_SPARC_WDISP30, /* It has limited range but GRUB adds trampolines when necessarry. */
R_SPARC_HH22,
R_SPARC_HM10,
R_SPARC_LM22,
R_SPARC_LO10,
R_SPARC_64,
R_SPARC_OLO10,
/* Following 2 relocations have limited range but unfortunately
clang generates them, as it doesn't implement mcmodel=large properly.
At least our heap and core are under 4G, so it's not a problem
usually. */
R_SPARC_HI22,
R_SPARC_32,
-1
} },
{ "ia64", 8, 0, EM_IA_64, GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_IA64_PCREL21B, /* We should verify that it's pointing either
to a function or to a section in the same module.
Checking that external symbol is a function is
non-trivial and I have never seen this relocation used
for anything else, so assume that it always points to a
function.
*/
R_IA64_SEGREL64LSB,
R_IA64_FPTR64LSB,
R_IA64_DIR64LSB,
R_IA64_PCREL64LSB,
R_IA64_LTOFF22X,
R_IA64_LTOFF22,
R_IA64_GPREL64I,
R_IA64_LTOFF_FPTR22,
R_IA64_LDXMOV,
-1
}, (int[]){
R_IA64_GPREL22,
-1
} },
{ "mipsel", 4, 0, EM_MIPS, GRUB_MODULE_VERIFY_SUPPORTS_REL | GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_MIPS_HI16,
R_MIPS_LO16,
R_MIPS_32,
R_MIPS_GPREL32,
R_MIPS_26,
R_MIPS_GOT16,
R_MIPS_CALL16,
R_MIPS_JALR,
-1
} },
{ "mips", 4, 1, EM_MIPS, GRUB_MODULE_VERIFY_SUPPORTS_REL | GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_MIPS_HI16,
R_MIPS_LO16,
R_MIPS_32,
R_MIPS_GPREL32,
R_MIPS_26,
R_MIPS_GOT16,
R_MIPS_CALL16,
R_MIPS_JALR,
-1
} },
{ "arm", 4, 0, EM_ARM, GRUB_MODULE_VERIFY_SUPPORTS_REL, (int[]){
/* Some relocations are range-limited but trampolines are added when necessarry. */
R_ARM_ABS32,
R_ARM_CALL,
R_ARM_JUMP24,
R_ARM_THM_CALL,
R_ARM_THM_JUMP24,
R_ARM_V4BX,
R_ARM_THM_MOVW_ABS_NC,
R_ARM_THM_MOVT_ABS,
R_ARM_THM_JUMP19,
-1
} },
{ "arm64", 8, 0, EM_AARCH64, GRUB_MODULE_VERIFY_SUPPORTS_REL | GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_AARCH64_ABS64,
R_AARCH64_CALL26,
R_AARCH64_JUMP26,
R_AARCH64_ADR_GOT_PAGE,
R_AARCH64_LD64_GOT_LO12_NC,
-1
}, (int[]){
R_AARCH64_ADR_PREL_PG_HI21,
R_AARCH64_ADD_ABS_LO12_NC,
R_AARCH64_LDST64_ABS_LO12_NC,
R_AARCH64_PREL32,
-1
} },
{ "mips64el", 8, 0, EM_MIPS, GRUB_MODULE_VERIFY_SUPPORTS_REL | GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_MIPS_64,
R_MIPS_32,
R_MIPS_26,
R_MIPS_LO16,
R_MIPS_HI16,
R_MIPS_HIGHER,
R_MIPS_HIGHEST,
-1
}, (int[]){
-1
}
},
{ "riscv32", 4, 0, EM_RISCV, GRUB_MODULE_VERIFY_SUPPORTS_REL | GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_RISCV_32,
R_RISCV_64,
R_RISCV_ADD8,
R_RISCV_ADD16,
R_RISCV_ADD32,
R_RISCV_ADD64,
R_RISCV_SUB8,
R_RISCV_SUB16,
R_RISCV_SUB32,
R_RISCV_SUB64,
R_RISCV_ALIGN,
R_RISCV_BRANCH,
R_RISCV_CALL,
R_RISCV_CALL_PLT,
R_RISCV_GOT_HI20,
R_RISCV_HI20,
R_RISCV_JAL,
R_RISCV_LO12_I,
R_RISCV_LO12_S,
R_RISCV_PCREL_HI20,
R_RISCV_PCREL_LO12_I,
R_RISCV_PCREL_LO12_S,
R_RISCV_RELAX,
R_RISCV_RVC_BRANCH,
R_RISCV_RVC_JUMP,
-1
} },
{ "riscv64", 8, 0, EM_RISCV, GRUB_MODULE_VERIFY_SUPPORTS_REL | GRUB_MODULE_VERIFY_SUPPORTS_RELA, (int[]){
R_RISCV_32,
R_RISCV_64,
R_RISCV_ADD8,
R_RISCV_ADD16,
R_RISCV_ADD32,
R_RISCV_ADD64,
R_RISCV_SUB8,
R_RISCV_SUB16,
R_RISCV_SUB32,
R_RISCV_SUB64,
R_RISCV_ALIGN,
R_RISCV_BRANCH,
R_RISCV_CALL,
R_RISCV_CALL_PLT,
R_RISCV_GOT_HI20,
R_RISCV_HI20,
R_RISCV_JAL,
R_RISCV_LO12_I,
R_RISCV_LO12_S,
R_RISCV_PCREL_HI20,
R_RISCV_PCREL_LO12_I,
R_RISCV_PCREL_LO12_S,
R_RISCV_RELAX,
R_RISCV_RVC_BRANCH,
R_RISCV_RVC_JUMP,
-1
}
},
};
struct platform_whitelist {
const char *arch;
const char *platform;
const char **whitelist_empty;
};
static struct platform_whitelist whitelists[] = {
{"i386", "xen", (const char *[]) {"all_video", 0}},
{"i386", "xen_pvh", (const char *[]) {"all_video", 0}},
{"x86_64", "xen", (const char *[]) {"all_video", 0}},
{"sparc64", "ieee1275", (const char *[]) {"all_video", 0}},
/* video is compiled-in on MIPS. */
{"mipsel", "loongson", (const char *[]) {"all_video", 0}},
{"mipsel", "qemu_mips", (const char *[]) {"all_video", 0}},
{"mipsel", "arc", (const char *[]) {"all_video", 0}},
{"mips", "qemu_mips", (const char *[]) {"all_video", 0}},
{"mips", "arc", (const char *[]) {"all_video", 0}},
};
int
main (int argc, char **argv)
{
size_t module_size;
unsigned arch, whitelist;
const char **whitelist_empty = 0;
char *module_img;
if (argc != 4) {
fprintf (stderr, "usage: %s FILE ARCH PLATFORM\n", argv[0]);
return 1;
}
for (arch = 0; arch < ARRAY_SIZE(archs); arch++)
if (strcmp(archs[arch].name, argv[2]) == 0)
break;
if (arch == ARRAY_SIZE(archs))
grub_util_error("%s: unknown arch: %s", argv[1], argv[2]);
for (whitelist = 0; whitelist < ARRAY_SIZE(whitelists); whitelist++)
if (strcmp(whitelists[whitelist].arch, argv[2]) == 0
&& strcmp(whitelists[whitelist].platform, argv[3]) == 0)
break;
if (whitelist != ARRAY_SIZE(whitelists))
whitelist_empty = whitelists[whitelist].whitelist_empty;
module_size = grub_util_get_image_size (argv[1]);
module_img = grub_util_read_image (argv[1]);
if (archs[arch].voidp_sizeof == 8)
grub_module_verify64(argv[1], module_img, module_size, &archs[arch], whitelist_empty);
else
grub_module_verify32(argv[1], module_img, module_size, &archs[arch], whitelist_empty);
return 0;
}
@@ -0,0 +1,446 @@
#include <string.h>
#include <grub/elf.h>
#include <grub/module_verifier.h>
#include <grub/util/misc.h>
#if defined(MODULEVERIFIER_ELF32)
# define SUFFIX(x) x ## 32
# define ELFCLASSXX ELFCLASS32
# define Elf_Ehdr Elf32_Ehdr
# define Elf_Phdr Elf32_Phdr
# define Elf_Nhdr Elf32_Nhdr
# define Elf_Addr Elf32_Addr
# define Elf_Sym Elf32_Sym
# define Elf_Off Elf32_Off
# define Elf_Shdr Elf32_Shdr
# define Elf_Rela Elf32_Rela
# define Elf_Rel Elf32_Rel
# define Elf_Word Elf32_Word
# define Elf_Half Elf32_Half
# define Elf_Section Elf32_Section
# define ELF_R_SYM(val) ELF32_R_SYM(val)
# define ELF_R_TYPE(val) ELF32_R_TYPE(val)
# define ELF_ST_TYPE(val) ELF32_ST_TYPE(val)
#elif defined(MODULEVERIFIER_ELF64)
# define SUFFIX(x) x ## 64
# define ELFCLASSXX ELFCLASS64
# define Elf_Ehdr Elf64_Ehdr
# define Elf_Phdr Elf64_Phdr
# define Elf_Nhdr Elf64_Nhdr
# define Elf_Addr Elf64_Addr
# define Elf_Sym Elf64_Sym
# define Elf_Off Elf64_Off
# define Elf_Shdr Elf64_Shdr
# define Elf_Rela Elf64_Rela
# define Elf_Rel Elf64_Rel
# define Elf_Word Elf64_Word
# define Elf_Half Elf64_Half
# define Elf_Section Elf64_Section
# define ELF_R_SYM(val) ELF64_R_SYM(val)
# define ELF_R_TYPE(val) ELF64_R_TYPE(val)
# define ELF_ST_TYPE(val) ELF64_ST_TYPE(val)
#else
#error "I'm confused"
#endif
#define grub_target_to_host32(x) (grub_target_to_host32_real (arch, (x)))
#define grub_host_to_target32(x) (grub_host_to_target32_real (arch, (x)))
#define grub_target_to_host64(x) (grub_target_to_host64_real (arch, (x)))
#define grub_host_to_target64(x) (grub_host_to_target64_real (arch, (x)))
#define grub_host_to_target_addr(x) (grub_host_to_target_addr_real (arch, (x)))
#define grub_target_to_host16(x) (grub_target_to_host16_real (arch, (x)))
#define grub_host_to_target16(x) (grub_host_to_target16_real (arch, (x)))
#define grub_target_to_host(val) grub_target_to_host_real(arch, (val))
static inline grub_uint32_t
grub_target_to_host32_real (const struct grub_module_verifier_arch *arch,
grub_uint32_t in)
{
if (arch->bigendian)
return grub_be_to_cpu32 (in);
else
return grub_le_to_cpu32 (in);
}
static inline grub_uint64_t
grub_target_to_host64_real (const struct grub_module_verifier_arch *arch,
grub_uint64_t in)
{
if (arch->bigendian)
return grub_be_to_cpu64 (in);
else
return grub_le_to_cpu64 (in);
}
static inline grub_uint64_t
grub_host_to_target64_real (const struct grub_module_verifier_arch *arch,
grub_uint64_t in)
{
if (arch->bigendian)
return grub_cpu_to_be64 (in);
else
return grub_cpu_to_le64 (in);
}
static inline grub_uint32_t
grub_host_to_target32_real (const struct grub_module_verifier_arch *arch,
grub_uint32_t in)
{
if (arch->bigendian)
return grub_cpu_to_be32 (in);
else
return grub_cpu_to_le32 (in);
}
static inline grub_uint16_t
grub_target_to_host16_real (const struct grub_module_verifier_arch *arch,
grub_uint16_t in)
{
if (arch->bigendian)
return grub_be_to_cpu16 (in);
else
return grub_le_to_cpu16 (in);
}
static inline grub_uint16_t
grub_host_to_target16_real (const struct grub_module_verifier_arch *arch,
grub_uint16_t in)
{
if (arch->bigendian)
return grub_cpu_to_be16 (in);
else
return grub_cpu_to_le16 (in);
}
static inline grub_uint64_t
grub_host_to_target_addr_real (const struct grub_module_verifier_arch *arch, grub_uint64_t in)
{
if (arch->voidp_sizeof == 8)
return grub_host_to_target64_real (arch, in);
else
return grub_host_to_target32_real (arch, in);
}
static inline grub_uint64_t
grub_target_to_host_real (const struct grub_module_verifier_arch *arch, grub_uint64_t in)
{
if (arch->voidp_sizeof == 8)
return grub_target_to_host64_real (arch, in);
else
return grub_target_to_host32_real (arch, in);
}
static Elf_Shdr *
find_section (const struct grub_module_verifier_arch *arch, Elf_Ehdr *e, const char *name)
{
Elf_Shdr *s;
const char *str;
unsigned i;
s = (Elf_Shdr *) ((char *) e + grub_target_to_host (e->e_shoff) + grub_target_to_host16 (e->e_shstrndx) * grub_target_to_host16 (e->e_shentsize));
str = (char *) e + grub_target_to_host (s->sh_offset);
for (i = 0, s = (Elf_Shdr *) ((char *) e + grub_target_to_host (e->e_shoff));
i < grub_target_to_host16 (e->e_shnum);
i++, s = (Elf_Shdr *) ((char *) s + grub_target_to_host16 (e->e_shentsize)))
if (strcmp (str + grub_target_to_host32 (s->sh_name), name) == 0)
return s;
return NULL;
}
static void
check_license (const char * const filename,
const struct grub_module_verifier_arch *arch, Elf_Ehdr *e)
{
Elf_Shdr *s = find_section (arch, e, ".module_license");
if (s && (strcmp ((char *) e + grub_target_to_host(s->sh_offset), "LICENSE=GPLv3") == 0
|| strcmp ((char *) e + grub_target_to_host(s->sh_offset), "LICENSE=GPLv3+") == 0
|| strcmp ((char *) e + grub_target_to_host(s->sh_offset), "LICENSE=GPLv2+") == 0))
return;
grub_util_error ("%s: incompatible license", filename);
}
static Elf_Sym *
get_symtab (const struct grub_module_verifier_arch *arch, Elf_Ehdr *e, Elf_Word *size, Elf_Word *entsize)
{
unsigned i;
Elf_Shdr *s, *sections;
Elf_Sym *sym;
sections = (Elf_Shdr *) ((char *) e + grub_target_to_host (e->e_shoff));
for (i = 0, s = sections;
i < grub_target_to_host16 (e->e_shnum);
i++, s = (Elf_Shdr *) ((char *) s + grub_target_to_host16 (e->e_shentsize)))
if (grub_target_to_host32 (s->sh_type) == SHT_SYMTAB)
break;
if (i == grub_target_to_host16 (e->e_shnum))
return NULL;
sym = (Elf_Sym *) ((char *) e + grub_target_to_host (s->sh_offset));
*size = grub_target_to_host (s->sh_size);
*entsize = grub_target_to_host (s->sh_entsize);
return sym;
}
static int
is_whitelisted (const char *modname, const char **whitelist)
{
const char **ptr;
if (!whitelist)
return 0;
if (!modname)
return 0;
for (ptr = whitelist; *ptr; ptr++)
if (strcmp (modname, *ptr) == 0)
return 1;
return 0;
}
static void
check_symbols (const struct grub_module_verifier_arch *arch,
Elf_Ehdr *e, const char *modname,
const char **whitelist_empty)
{
Elf_Sym *sym;
Elf_Word size, entsize;
unsigned i;
/* Module without symbol table and without .moddeps section is useless
at boot time, so catch it early to prevent build errors */
sym = get_symtab (arch, e, &size, &entsize);
if (!sym)
{
Elf_Shdr *s;
/* However some modules are dependencies-only,
e.g. insmod all_video pulls in all video drivers.
Some platforms e.g. xen have no video drivers, so
the module does nothing. */
if (is_whitelisted (modname, whitelist_empty))
return;
s = find_section (arch, e, ".moddeps");
if (!s)
grub_util_error ("%s: no symbol table and no .moddeps section", modname);
if (!s->sh_size)
grub_util_error ("%s: no symbol table and empty .moddeps section", modname);
return;
}
for (i = 0;
i < size / entsize;
i++, sym = (Elf_Sym *) ((char *) sym + entsize))
{
unsigned char type = ELF_ST_TYPE (sym->st_info);
switch (type)
{
case STT_NOTYPE:
case STT_OBJECT:
case STT_FUNC:
case STT_SECTION:
case STT_FILE:
break;
default:
return grub_util_error ("%s: unknown symbol type `%d'", modname, (int) type);
}
}
}
static int
is_symbol_local(Elf_Sym *sym)
{
switch (ELF_ST_TYPE (sym->st_info))
{
case STT_NOTYPE:
case STT_OBJECT:
if (sym->st_name != 0 && sym->st_shndx == 0)
return 0;
return 1;
case STT_FUNC:
case STT_SECTION:
return 1;
default:
return 0;
}
}
static void
section_check_relocations (const char * const modname,
const struct grub_module_verifier_arch *arch, void *ehdr,
Elf_Shdr *s, size_t target_seg_size)
{
Elf_Rel *rel, *max;
Elf_Sym *symtab;
Elf_Word symtabsize, symtabentsize;
symtab = get_symtab (arch, ehdr, &symtabsize, &symtabentsize);
if (!symtab)
grub_util_error ("%s: relocation without symbol table", modname);
for (rel = (Elf_Rel *) ((char *) ehdr + grub_target_to_host (s->sh_offset)),
max = (Elf_Rel *) ((char *) rel + grub_target_to_host (s->sh_size));
rel < max;
rel = (Elf_Rel *) ((char *) rel + grub_target_to_host (s->sh_entsize)))
{
Elf_Sym *sym;
unsigned i;
if (target_seg_size < grub_target_to_host (rel->r_offset))
grub_util_error ("%s: reloc offset is out of the segment", modname);
grub_size_t r_info;
if (arch->machine == EM_MIPS && arch->voidp_sizeof == 8)
r_info = ((grub_uint64_t) rel->r_info << 32) |
(grub_uint32_t) grub_be_to_cpu64 (rel->r_info);
else
r_info = grub_target_to_host (rel->r_info);
grub_uint32_t type = ELF_R_TYPE (r_info);
if (arch->machine == EM_SPARCV9)
type &= 0xff;
for (i = 0; arch->supported_relocations[i] != -1; i++)
if (type == arch->supported_relocations[i])
break;
if (arch->supported_relocations[i] != -1)
continue;
if (!arch->short_relocations)
grub_util_error ("%s: unsupported relocation 0x%x", modname, type);
for (i = 0; arch->short_relocations[i] != -1; i++)
if (type == arch->short_relocations[i])
break;
if (arch->short_relocations[i] == -1)
grub_util_error ("%s: unsupported relocation 0x%x", modname, type);
sym = (Elf_Sym *) ((char *) symtab + symtabentsize * ELF_R_SYM (r_info));
if (is_symbol_local (sym))
continue;
grub_util_error ("%s: relocation 0x%x is not module-local", modname, type);
}
#if defined(MODULEVERIFIER_ELF64)
if (arch->machine == EM_AARCH64)
{
unsigned unmatched_adr_got_page = 0;
Elf_Rela *rel2;
for (rel = (Elf_Rel *) ((char *) ehdr + grub_target_to_host (s->sh_offset)),
max = (Elf_Rel *) ((char *) rel + grub_target_to_host (s->sh_size));
rel < max;
rel = (Elf_Rel *) ((char *) rel + grub_target_to_host (s->sh_entsize)))
{
switch (ELF_R_TYPE (grub_target_to_host (rel->r_info)))
{
case R_AARCH64_ADR_GOT_PAGE:
unmatched_adr_got_page++;
for (rel2 = (Elf_Rela *) ((char *) rel + grub_target_to_host (s->sh_entsize));
rel2 < (Elf_Rela *) max;
rel2 = (Elf_Rela *) ((char *) rel2 + grub_target_to_host (s->sh_entsize)))
if (ELF_R_SYM (rel2->r_info)
== ELF_R_SYM (rel->r_info)
&& ((Elf_Rela *) rel)->r_addend == rel2->r_addend
&& ELF_R_TYPE (rel2->r_info) == R_AARCH64_LD64_GOT_LO12_NC)
break;
if (rel2 >= (Elf_Rela *) max)
grub_util_error ("%s: ADR_GOT_PAGE without matching LD64_GOT_LO12_NC", modname);
break;
case R_AARCH64_LD64_GOT_LO12_NC:
if (unmatched_adr_got_page == 0)
grub_util_error ("%s: LD64_GOT_LO12_NC without matching ADR_GOT_PAGE", modname);
unmatched_adr_got_page--;
break;
}
}
}
#endif
}
static void
check_relocations (const char * const modname,
const struct grub_module_verifier_arch *arch, Elf_Ehdr *e)
{
Elf_Shdr *s;
unsigned i;
for (i = 0, s = (Elf_Shdr *) ((char *) e + grub_target_to_host (e->e_shoff));
i < grub_target_to_host16 (e->e_shnum);
i++, s = (Elf_Shdr *) ((char *) s + grub_target_to_host16 (e->e_shentsize)))
if (grub_target_to_host32 (s->sh_type) == SHT_REL || grub_target_to_host32 (s->sh_type) == SHT_RELA)
{
Elf_Shdr *ts;
if (grub_target_to_host32 (s->sh_type) == SHT_REL && !(arch->flags & GRUB_MODULE_VERIFY_SUPPORTS_REL))
grub_util_error ("%s: unsupported SHT_REL", modname);
if (grub_target_to_host32 (s->sh_type) == SHT_RELA && !(arch->flags & GRUB_MODULE_VERIFY_SUPPORTS_RELA))
grub_util_error ("%s: unsupported SHT_RELA", modname);
/* Find the target segment. */
if (grub_target_to_host32 (s->sh_info) >= grub_target_to_host16 (e->e_shnum))
grub_util_error ("%s: orphaned reloc section", modname);
ts = (Elf_Shdr *) ((char *) e + grub_target_to_host (e->e_shoff) + grub_target_to_host32 (s->sh_info) * grub_target_to_host16 (e->e_shentsize));
section_check_relocations (modname, arch, e, s, grub_target_to_host (ts->sh_size));
}
}
void
SUFFIX(grub_module_verify) (const char * const filename,
void *module_img, size_t size,
const struct grub_module_verifier_arch *arch,
const char **whitelist_empty)
{
Elf_Ehdr *e = module_img;
/* Check the header size. */
if (size < sizeof (Elf_Ehdr))
grub_util_error ("%s: ELF header smaller than expected", filename);
/* Check the magic numbers. */
if (e->e_ident[EI_MAG0] != ELFMAG0
|| e->e_ident[EI_MAG1] != ELFMAG1
|| e->e_ident[EI_MAG2] != ELFMAG2
|| e->e_ident[EI_MAG3] != ELFMAG3
|| e->e_ident[EI_VERSION] != EV_CURRENT
|| grub_target_to_host32 (e->e_version) != EV_CURRENT)
grub_util_error ("%s: invalid arch-independent ELF magic", filename);
if (e->e_ident[EI_CLASS] != ELFCLASSXX
|| e->e_ident[EI_DATA] != (arch->bigendian ? ELFDATA2MSB : ELFDATA2LSB)
|| grub_target_to_host16 (e->e_machine) != arch->machine)
grub_util_error ("%s: invalid arch-dependent ELF magic", filename);
if (grub_target_to_host16 (e->e_type) != ET_REL)
{
grub_util_error ("%s: this ELF file is not of the right type", filename);
}
/* Make sure that every section is within the core. */
if (size < grub_target_to_host (e->e_shoff)
+ (grub_uint32_t) grub_target_to_host16 (e->e_shentsize) * grub_target_to_host16(e->e_shnum))
{
grub_util_error ("%s: ELF sections outside core", filename);
}
check_license (filename, arch, e);
Elf_Shdr *s;
const char *modname;
s = find_section (arch, e, ".modname");
if (!s)
grub_util_error ("%s: no module name found", filename);
modname = (const char *) e + grub_target_to_host (s->sh_offset);
check_symbols(arch, e, modname, whitelist_empty);
check_relocations(modname, arch, e);
}
File diff suppressed because it is too large Load Diff
+878
View File
@@ -0,0 +1,878 @@
/* grub-setup.c - make GRUB usable */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011 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 <config.h>
#include <grub/types.h>
#include <grub/emu/misc.h>
#include <grub/util/misc.h>
#include <grub/device.h>
#include <grub/disk.h>
#include <grub/file.h>
#include <grub/fs.h>
#include <grub/partition.h>
#include <grub/env.h>
#include <grub/emu/hostdisk.h>
#include <grub/term.h>
#include <grub/i18n.h>
#ifdef GRUB_SETUP_SPARC64
#include <grub/util/ofpath.h>
#include <grub/sparc64/ieee1275/boot.h>
#include <grub/sparc64/ieee1275/kernel.h>
#else
#include <grub/i386/pc/boot.h>
#include <grub/i386/pc/kernel.h>
#endif
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <assert.h>
#include <grub/emu/getroot.h>
#include "progname.h"
#include <grub/reed_solomon.h>
#include <grub/msdos_partition.h>
#include <grub/crypto.h>
#include <grub/util/install.h>
#include <grub/emu/hostfile.h>
#include <errno.h>
/* On SPARC this program fills in various fields inside of the 'boot' and 'core'
* image files.
*
* The 'boot' image needs to know the OBP path name of the root
* device. It also needs to know the initial block number of
* 'core' (which is 'diskboot' concatenated with 'kernel' and
* all the modules, this is created by grub-mkimage). This resulting
* 'boot' image is 512 bytes in size and is placed in the second block
* of a partition.
*
* The initial 'diskboot' block acts as a loader for the actual GRUB
* kernel. It contains the loading code and then a block list.
*
* The block list of 'core' starts at the end of the 'diskboot' image
* and works it's way backwards towards the end of the code of 'diskboot'.
*
* We patch up the images with the necessary values and write out the
* result.
*/
#ifdef GRUB_SETUP_SPARC64
#define grub_target_to_host16(x) grub_be_to_cpu16(x)
#define grub_target_to_host32(x) grub_be_to_cpu32(x)
#define grub_target_to_host64(x) grub_be_to_cpu64(x)
#define grub_host_to_target16(x) grub_cpu_to_be16(x)
#define grub_host_to_target32(x) grub_cpu_to_be32(x)
#define grub_host_to_target64(x) grub_cpu_to_be64(x)
#elif defined (GRUB_SETUP_BIOS)
#define grub_target_to_host16(x) grub_le_to_cpu16(x)
#define grub_target_to_host32(x) grub_le_to_cpu32(x)
#define grub_target_to_host64(x) grub_le_to_cpu64(x)
#define grub_host_to_target16(x) grub_cpu_to_le16(x)
#define grub_host_to_target32(x) grub_cpu_to_le32(x)
#define grub_host_to_target64(x) grub_cpu_to_le64(x)
#else
#error Complete this
#endif
static void
write_rootdev (grub_device_t root_dev,
char *boot_img, grub_uint64_t first_sector)
{
#ifdef GRUB_SETUP_BIOS
{
grub_uint8_t *boot_drive;
void *kernel_sector;
boot_drive = (grub_uint8_t *) (boot_img + GRUB_BOOT_MACHINE_BOOT_DRIVE);
kernel_sector = (boot_img + GRUB_BOOT_MACHINE_KERNEL_SECTOR);
/* FIXME: can this be skipped? */
*boot_drive = 0xFF;
grub_set_unaligned64 (kernel_sector, grub_cpu_to_le64 (first_sector));
}
#endif
#ifdef GRUB_SETUP_SPARC64
{
void *kernel_byte;
kernel_byte = (boot_img + GRUB_BOOT_AOUT_HEADER_SIZE
+ GRUB_BOOT_MACHINE_KERNEL_BYTE);
grub_set_unaligned64 (kernel_byte,
grub_cpu_to_be64 (first_sector << GRUB_DISK_SECTOR_BITS));
}
#endif
}
#ifdef GRUB_SETUP_SPARC64
#define BOOT_SECTOR 1
#else
#define BOOT_SECTOR 0
#endif
/* Helper for setup. */
struct blocklists
{
struct grub_boot_blocklist *first_block, *block;
#ifdef GRUB_SETUP_BIOS
grub_uint16_t current_segment;
#endif
#ifdef GRUB_SETUP_SPARC64
grub_uint64_t gpt_offset;
#endif
grub_uint16_t last_length;
grub_disk_addr_t first_sector;
};
/* Helper for setup. */
static void
save_blocklists (grub_disk_addr_t sector, unsigned offset, unsigned length,
void *data)
{
struct blocklists *bl = data;
struct grub_boot_blocklist *prev = bl->block + 1;
grub_uint64_t seclen;
#ifdef GRUB_SETUP_SPARC64
sector -= bl->gpt_offset;
#endif
grub_util_info ("saving <%" GRUB_HOST_PRIuLONG_LONG ",%u,%u>",
(unsigned long long) sector, offset, length);
if (bl->first_sector == (grub_disk_addr_t) -1)
{
if (offset != 0 || length < GRUB_DISK_SECTOR_SIZE)
grub_util_error ("%s", _("the first sector of the core file is not sector-aligned"));
bl->first_sector = sector;
sector++;
length -= GRUB_DISK_SECTOR_SIZE;
if (!length)
return;
}
if (offset != 0 || bl->last_length != 0)
grub_util_error ("%s", _("non-sector-aligned data is found in the core file"));
seclen = (length + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS;
if (bl->block != bl->first_block
&& (grub_target_to_host64 (prev->start)
+ grub_target_to_host16 (prev->len)) == sector)
{
grub_uint16_t t = grub_target_to_host16 (prev->len);
t += seclen;
prev->len = grub_host_to_target16 (t);
}
else
{
bl->block->start = grub_host_to_target64 (sector);
bl->block->len = grub_host_to_target16 (seclen);
#ifdef GRUB_SETUP_BIOS
bl->block->segment = grub_host_to_target16 (bl->current_segment);
#endif
bl->block--;
if (bl->block->len)
grub_util_error ("%s", _("the sectors of the core file are too fragmented"));
}
bl->last_length = length & (GRUB_DISK_SECTOR_SIZE - 1);
#ifdef GRUB_SETUP_BIOS
bl->current_segment += seclen << (GRUB_DISK_SECTOR_BITS - 4);
#endif
}
/* Context for setup/identify_partmap. */
struct identify_partmap_ctx
{
grub_partition_map_t dest_partmap;
grub_partition_t container;
int multiple_partmaps;
};
/* Helper for setup.
Unlike root_dev, with dest_dev we're interested in the partition map even
if dest_dev itself is a whole disk. */
static int
identify_partmap (grub_disk_t disk __attribute__ ((unused)),
const grub_partition_t p, void *data)
{
struct identify_partmap_ctx *ctx = data;
if (p->parent != ctx->container)
return 0;
/* NetBSD and OpenBSD subpartitions have metadata inside a partition,
so they are safe to ignore.
*/
if (grub_strcmp (p->partmap->name, "netbsd") == 0
|| grub_strcmp (p->partmap->name, "openbsd") == 0)
return 0;
if (ctx->dest_partmap == NULL)
{
ctx->dest_partmap = p->partmap;
return 0;
}
if (ctx->dest_partmap == p->partmap)
return 0;
ctx->multiple_partmaps = 1;
return 1;
}
#ifdef GRUB_SETUP_BIOS
#define SETUP grub_util_bios_setup
#elif GRUB_SETUP_SPARC64
#define SETUP grub_util_sparc_setup
#else
#error "Shouldn't happen"
#endif
void
SETUP (const char *dir,
const char *boot_file, const char *core_file,
const char *dest, int force,
int fs_probe, int allow_floppy,
int add_rs_codes __attribute__ ((unused))) /* unused on sparc64 */
{
char *core_path;
char *boot_img, *core_img, *boot_path;
char *root = 0;
size_t boot_size, core_size;
grub_uint16_t core_sectors;
grub_device_t root_dev = 0, dest_dev, core_dev;
grub_util_fd_t fp;
struct blocklists bl;
bl.first_sector = (grub_disk_addr_t) -1;
#ifdef GRUB_SETUP_BIOS
bl.current_segment =
GRUB_BOOT_I386_PC_KERNEL_SEG + (GRUB_DISK_SECTOR_SIZE >> 4);
#endif
bl.last_length = 0;
/* Read the boot image by the OS service. */
boot_path = grub_util_get_path (dir, boot_file);
boot_size = grub_util_get_image_size (boot_path);
if (boot_size != GRUB_DISK_SECTOR_SIZE)
grub_util_error (_("the size of `%s' is not %u"),
boot_path, GRUB_DISK_SECTOR_SIZE);
boot_img = grub_util_read_image (boot_path);
free (boot_path);
core_path = grub_util_get_path (dir, core_file);
core_size = grub_util_get_image_size (core_path);
core_sectors = ((core_size + GRUB_DISK_SECTOR_SIZE - 1)
>> GRUB_DISK_SECTOR_BITS);
if (core_size < GRUB_DISK_SECTOR_SIZE)
grub_util_error (_("the size of `%s' is too small"), core_path);
#ifdef GRUB_SETUP_BIOS
if (core_size > 0xFFFF * GRUB_DISK_SECTOR_SIZE)
grub_util_error (_("the size of `%s' is too large"), core_path);
#endif
core_img = grub_util_read_image (core_path);
/* Have FIRST_BLOCK to point to the first blocklist. */
bl.first_block = (struct grub_boot_blocklist *) (core_img
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*bl.block));
grub_util_info ("Opening dest `%s'", dest);
dest_dev = grub_device_open (dest);
if (! dest_dev)
grub_util_error ("%s", grub_errmsg);
core_dev = dest_dev;
{
char **root_devices = grub_guess_root_devices (dir);
char **cur;
int found = 0;
if (!root_devices)
grub_util_error (_("cannot find a device for %s (is /dev mounted?)"), dir);
for (cur = root_devices; *cur; cur++)
{
char *drive;
grub_device_t try_dev;
drive = grub_util_get_grub_dev (*cur);
if (!drive)
continue;
try_dev = grub_device_open (drive);
if (! try_dev)
{
free (drive);
continue;
}
if (!found && try_dev->disk->id == dest_dev->disk->id
&& try_dev->disk->dev->id == dest_dev->disk->dev->id)
{
if (root_dev)
grub_device_close (root_dev);
free (root);
root_dev = try_dev;
root = drive;
found = 1;
continue;
}
if (!root_dev)
{
root_dev = try_dev;
root = drive;
continue;
}
grub_device_close (try_dev);
free (drive);
}
if (!root_dev)
{
root = grub_util_get_grub_dev ("/dev/sda");
root_dev = grub_device_open (root);
if (root_dev)
grub_util_info ("guessing the root device failed, because of `%s'", grub_errmsg);
else
grub_util_error ("guessing the root device failed, because of `%s'", grub_errmsg);
}
grub_util_info ("guessed root_dev `%s' from "
"dir `%s'", root_dev->disk->name, dir);
for (cur = root_devices; *cur; cur++)
free (*cur);
free (root_devices);
}
grub_util_info ("setting the root device to `%s'", root);
if (grub_env_set ("root", root) != GRUB_ERR_NONE)
grub_util_error ("%s", grub_errmsg);
{
#ifdef GRUB_SETUP_BIOS
char *tmp_img;
grub_uint8_t *boot_drive_check;
/* Read the original sector from the disk. */
tmp_img = xmalloc (GRUB_DISK_SECTOR_SIZE);
if (grub_disk_read (dest_dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, tmp_img))
grub_util_error ("%s", grub_errmsg);
boot_drive_check = (grub_uint8_t *) (boot_img
+ GRUB_BOOT_MACHINE_DRIVE_CHECK);
/* Copy the possible DOS BPB. */
memcpy (boot_img + GRUB_BOOT_MACHINE_BPB_START,
tmp_img + GRUB_BOOT_MACHINE_BPB_START,
GRUB_BOOT_MACHINE_BPB_END - GRUB_BOOT_MACHINE_BPB_START);
/* If DEST_DRIVE is a hard disk, enable the workaround, which is
for buggy BIOSes which don't pass boot drive correctly. Instead,
they pass 0x00 or 0x01 even when booted from 0x80. */
if (!allow_floppy && !grub_util_biosdisk_is_floppy (dest_dev->disk))
{
/* Replace the jmp (2 bytes) with double nop's. */
boot_drive_check[0] = 0x90;
boot_drive_check[1] = 0x90;
}
#endif
struct identify_partmap_ctx ctx = {
.dest_partmap = NULL,
.container = dest_dev->disk->partition,
.multiple_partmaps = 0
};
int is_ldm;
grub_err_t err;
grub_disk_addr_t *sectors;
int i;
grub_fs_t fs;
unsigned int nsec, maxsec;
grub_partition_iterate (dest_dev->disk, identify_partmap, &ctx);
#ifdef GRUB_SETUP_BIOS
/* Copy the partition table. */
if (ctx.dest_partmap ||
(!allow_floppy && !grub_util_biosdisk_is_floppy (dest_dev->disk)))
memcpy (boot_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
tmp_img + GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
GRUB_BOOT_MACHINE_PART_END - GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC);
free (tmp_img);
#endif
if (ctx.container
&& grub_strcmp (ctx.container->partmap->name, "msdos") == 0
&& ctx.dest_partmap
&& (ctx.container->msdostype == GRUB_PC_PARTITION_TYPE_NETBSD
|| ctx.container->msdostype == GRUB_PC_PARTITION_TYPE_OPENBSD))
{
grub_util_warn ("%s", _("Attempting to install GRUB to a disk with multiple partition labels or both partition label and filesystem. This is not supported yet."));
goto unable_to_embed;
}
fs = grub_fs_probe (dest_dev);
if (!fs)
grub_errno = GRUB_ERR_NONE;
is_ldm = grub_util_is_ldm (dest_dev->disk);
if (fs_probe)
{
if (!fs && !ctx.dest_partmap)
grub_util_error (_("unable to identify a filesystem in %s; safety check can't be performed"),
dest_dev->disk->name);
if (fs && !fs->reserved_first_sector)
/* TRANSLATORS: Filesystem may reserve the space just GRUB isn't sure about it. */
grub_util_error (_("%s appears to contain a %s filesystem which isn't known to "
"reserve space for DOS-style boot. Installing GRUB there could "
"result in FILESYSTEM DESTRUCTION if valuable data is overwritten "
"by grub-setup (--skip-fs-probe disables this "
"check, use at your own risk)"), dest_dev->disk->name, fs->name);
if (ctx.dest_partmap && strcmp (ctx.dest_partmap->name, "msdos") != 0
&& strcmp (ctx.dest_partmap->name, "gpt") != 0
&& strcmp (ctx.dest_partmap->name, "bsd") != 0
&& strcmp (ctx.dest_partmap->name, "netbsd") != 0
&& strcmp (ctx.dest_partmap->name, "openbsd") != 0
&& strcmp (ctx.dest_partmap->name, "sunpc") != 0)
/* TRANSLATORS: Partition map may reserve the space just GRUB isn't sure about it. */
grub_util_error (_("%s appears to contain a %s partition map which isn't known to "
"reserve space for DOS-style boot. Installing GRUB there could "
"result in FILESYSTEM DESTRUCTION if valuable data is overwritten "
"by grub-setup (--skip-fs-probe disables this "
"check, use at your own risk)"), dest_dev->disk->name, ctx.dest_partmap->name);
if (is_ldm && ctx.dest_partmap && strcmp (ctx.dest_partmap->name, "msdos") != 0
&& strcmp (ctx.dest_partmap->name, "gpt") != 0)
grub_util_error (_("%s appears to contain a %s partition map and "
"LDM which isn't known to be a safe combination."
" Installing GRUB there could "
"result in FILESYSTEM DESTRUCTION if valuable data"
" is overwritten "
"by grub-setup (--skip-fs-probe disables this "
"check, use at your own risk)"),
dest_dev->disk->name, ctx.dest_partmap->name);
}
if (! ctx.dest_partmap && ! fs && !is_ldm)
{
grub_util_warn ("%s", _("Attempting to install GRUB to a partitionless disk or to a partition. This is a BAD idea."));
goto unable_to_embed;
}
if (ctx.multiple_partmaps || (ctx.dest_partmap && fs) || (is_ldm && fs))
{
grub_util_warn ("%s", _("Attempting to install GRUB to a disk with multiple partition labels. This is not supported yet."));
goto unable_to_embed;
}
if (ctx.dest_partmap && !ctx.dest_partmap->embed)
{
grub_util_warn (_("Partition style `%s' doesn't support embedding"),
ctx.dest_partmap->name);
goto unable_to_embed;
}
if (fs && !fs->fs_embed)
{
grub_util_warn (_("File system `%s' doesn't support embedding"),
fs->name);
goto unable_to_embed;
}
nsec = core_sectors;
if (add_rs_codes)
maxsec = 2 * core_sectors;
else
maxsec = core_sectors;
#ifdef GRUB_SETUP_BIOS
if (maxsec > ((0x78000 - GRUB_KERNEL_I386_PC_LINK_ADDR)
>> GRUB_DISK_SECTOR_BITS))
maxsec = ((0x78000 - GRUB_KERNEL_I386_PC_LINK_ADDR)
>> GRUB_DISK_SECTOR_BITS);
#endif
#ifdef GRUB_SETUP_SPARC64
/*
* On SPARC we need two extra. One is because we are combining the
* core.img with the boot.img. The other is because the boot sector
* starts at 1.
*/
nsec += 2;
maxsec += 2;
#endif
if (is_ldm)
err = grub_util_ldm_embed (dest_dev->disk, &nsec, maxsec,
GRUB_EMBED_PCBIOS, &sectors);
else if (ctx.dest_partmap)
err = ctx.dest_partmap->embed (dest_dev->disk, &nsec, maxsec,
GRUB_EMBED_PCBIOS, &sectors);
else
err = fs->fs_embed (dest_dev, &nsec, maxsec,
GRUB_EMBED_PCBIOS, &sectors);
if (!err && nsec < core_sectors)
{
err = grub_error (GRUB_ERR_OUT_OF_RANGE,
N_("Your embedding area is unusually small. "
"core.img won't fit in it."));
}
if (err)
{
grub_util_warn ("%s", grub_errmsg);
grub_errno = GRUB_ERR_NONE;
goto unable_to_embed;
}
assert (nsec <= maxsec);
/* Clean out the blocklists. */
bl.block = bl.first_block;
while (bl.block->len)
{
grub_memset (bl.block, 0, sizeof (*bl.block));
bl.block--;
if ((char *) bl.block <= core_img)
grub_util_error ("%s", _("no terminator in the core image"));
}
bl.block = bl.first_block;
for (i = 0; i < nsec; i++)
save_blocklists (sectors[i] + grub_partition_get_start (ctx.container),
0, GRUB_DISK_SECTOR_SIZE, &bl);
/* Make sure that the last blocklist is a terminator. */
if (bl.block == bl.first_block)
bl.block--;
bl.block->start = 0;
bl.block->len = 0;
#ifdef GRUB_SETUP_BIOS
bl.block->segment = 0;
#endif
#ifdef GRUB_SETUP_SPARC64
{
/*
* On SPARC, the block-list entries need to be based off the beginning
* of the parition, not the beginning of the disk.
*/
struct grub_boot_blocklist *block;
block = bl.first_block;
while (block->len)
{
block->start -= bl.first_sector;
block--;
}
}
/*
* Reserve space for the boot block since it can not be in the
* Parition table on SPARC.
*/
assert (bl.first_block->len > 2);
bl.first_block->start += 2;
bl.first_block->len -= 2;
write_rootdev (root_dev, boot_img, sectors[BOOT_SECTOR + 1] - bl.first_sector);
#endif
#ifdef GRUB_SETUP_BIOS
write_rootdev (root_dev, boot_img, bl.first_sector);
#endif
/* Round up to the nearest sector boundary, and zero the extra memory */
core_img = xrealloc (core_img, nsec * GRUB_DISK_SECTOR_SIZE);
assert (core_img && (nsec * GRUB_DISK_SECTOR_SIZE >= core_size));
memset (core_img + core_size, 0, nsec * GRUB_DISK_SECTOR_SIZE - core_size);
bl.first_block = (struct grub_boot_blocklist *) (core_img
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*bl.block));
#if GRUB_SETUP_BIOS
grub_size_t no_rs_length;
no_rs_length = grub_target_to_host16
(grub_get_unaligned16 (core_img
+ GRUB_DISK_SECTOR_SIZE
+ GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_LENGTH));
if (no_rs_length == 0xffff)
grub_util_error ("%s", _("core.img version mismatch"));
if (add_rs_codes)
{
grub_set_unaligned32 ((core_img + GRUB_DISK_SECTOR_SIZE
+ GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY),
grub_host_to_target32 (nsec * GRUB_DISK_SECTOR_SIZE - core_size));
void *tmp = xmalloc (core_size);
grub_memcpy (tmp, core_img, core_size);
grub_reed_solomon_add_redundancy (core_img + no_rs_length + GRUB_DISK_SECTOR_SIZE,
core_size - no_rs_length - GRUB_DISK_SECTOR_SIZE,
nsec * GRUB_DISK_SECTOR_SIZE
- core_size);
assert (grub_memcmp (tmp, core_img, core_size) == 0);
free (tmp);
}
/* Write the core image onto the disk. */
for (i = 0; i < nsec; i++)
grub_disk_write (dest_dev->disk, sectors[i], 0,
GRUB_DISK_SECTOR_SIZE,
core_img + i * GRUB_DISK_SECTOR_SIZE);
#endif
#ifdef GRUB_SETUP_SPARC64
{
int isec = BOOT_SECTOR;
/* Write the boot image onto the disk. */
if (grub_disk_write (dest_dev->disk, sectors[isec++], 0,
GRUB_DISK_SECTOR_SIZE, boot_img))
grub_util_error ("%s", grub_errmsg);
/* Write the core image onto the disk. */
for (i = 0 ; isec < nsec; i++, isec++)
{
if (grub_disk_write (dest_dev->disk, sectors[isec], 0,
GRUB_DISK_SECTOR_SIZE,
core_img + i * GRUB_DISK_SECTOR_SIZE))
grub_util_error ("%s", grub_errmsg);
}
}
#endif
grub_free (sectors);
goto finish;
}
unable_to_embed:
if (dest_dev->disk->dev->id != root_dev->disk->dev->id)
grub_util_error ("%s", _("embedding is not possible, but this is required for "
"RAID and LVM install"));
{
grub_fs_t fs;
fs = grub_fs_probe (root_dev);
if (!fs)
grub_util_error (_("can't determine filesystem on %s"), root);
if (!fs->blocklist_install)
grub_util_error (_("filesystem `%s' doesn't support blocklists"),
fs->name);
}
#ifdef GRUB_SETUP_BIOS
if (dest_dev->disk->id != root_dev->disk->id
|| dest_dev->disk->dev->id != root_dev->disk->dev->id)
/* TRANSLATORS: cross-disk refers to /boot being on one disk
but MBR on another. */
grub_util_error ("%s", _("embedding is not possible, but this is required for "
"cross-disk install"));
#else
core_dev = root_dev;
#endif
grub_util_warn ("%s", _("Embedding is not possible. GRUB can only be installed in this "
"setup by using blocklists. However, blocklists are UNRELIABLE and "
"their use is discouraged."));
if (! force)
/* TRANSLATORS: Here GRUB refuses to continue with blocklist install. */
grub_util_error ("%s", _("will not proceed with blocklists"));
/* The core image must be put on a filesystem unfortunately. */
grub_util_info ("will leave the core image on the filesystem");
grub_util_biosdisk_flush (root_dev->disk);
/* Clean out the blocklists. */
bl.block = bl.first_block;
while (bl.block->len)
{
bl.block->start = 0;
bl.block->len = 0;
#ifdef GRUB_SETUP_BIOS
bl.block->segment = 0;
#endif
bl.block--;
if ((char *) bl.block <= core_img)
grub_util_error ("%s", _("no terminator in the core image"));
}
bl.block = bl.first_block;
#ifdef GRUB_SETUP_SPARC64
{
grub_partition_t container = root_dev->disk->partition;
bl.gpt_offset = 0;
if (grub_strstr (container->partmap->name, "gpt"))
bl.gpt_offset = grub_partition_get_start (container);
}
#endif
grub_install_get_blocklist (root_dev, core_path, core_img, core_size,
save_blocklists, &bl);
if (bl.first_sector == (grub_disk_addr_t)-1)
grub_util_error ("%s", _("can't retrieve blocklists"));
#ifdef GRUB_SETUP_SPARC64
{
char *boot_devpath;
boot_devpath = (char *) (boot_img
+ GRUB_BOOT_AOUT_HEADER_SIZE
+ GRUB_BOOT_MACHINE_BOOT_DEVPATH);
if (dest_dev->disk->id != root_dev->disk->id
|| dest_dev->disk->dev->id != root_dev->disk->dev->id)
{
char *dest_ofpath;
dest_ofpath
= grub_util_devname_to_ofpath (grub_util_biosdisk_get_osdev (root_dev->disk));
/* FIXME handle NULL result */
grub_util_info ("dest_ofpath is `%s'", dest_ofpath);
strncpy (boot_devpath, dest_ofpath,
GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
- GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1);
boot_devpath[GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
- GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1] = 0;
free (dest_ofpath);
}
else
{
grub_util_info ("non cross-disk install");
memset (boot_devpath, 0, GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
- GRUB_BOOT_MACHINE_BOOT_DEVPATH);
}
grub_util_info ("boot device path %s", boot_devpath);
}
#endif
write_rootdev (root_dev, boot_img, bl.first_sector);
/* Write the first two sectors of the core image onto the disk. */
grub_util_info ("opening the core image `%s'", core_path);
fp = grub_util_fd_open (core_path, GRUB_UTIL_FD_O_WRONLY);
if (! GRUB_UTIL_FD_IS_VALID (fp))
grub_util_error (_("cannot open `%s': %s"), core_path,
grub_util_fd_strerror ());
if (grub_util_fd_write (fp, core_img, GRUB_DISK_SECTOR_SIZE * 2)
!= GRUB_DISK_SECTOR_SIZE * 2)
grub_util_error (_("cannot write to `%s': %s"),
core_path, strerror (errno));
if (grub_util_fd_sync (fp) < 0)
grub_util_error (_("cannot sync `%s': %s"), core_path, strerror (errno));
if (grub_util_fd_close (fp) < 0)
grub_util_error (_("cannot close `%s': %s"), core_path, strerror (errno));
grub_util_biosdisk_flush (root_dev->disk);
grub_disk_cache_invalidate_all ();
{
char *buf, *ptr = core_img;
size_t len = core_size;
grub_uint64_t blk, offset = 0;
grub_partition_t container = core_dev->disk->partition;
grub_err_t err;
core_dev->disk->partition = 0;
#ifdef GRUB_SETUP_SPARC64
offset = bl.gpt_offset;
#endif
buf = xmalloc (core_size);
blk = bl.first_sector;
err = grub_disk_read (core_dev->disk, blk + offset, 0, GRUB_DISK_SECTOR_SIZE, buf);
if (err)
grub_util_error (_("cannot read `%s': %s"), core_dev->disk->name,
grub_errmsg);
if (grub_memcmp (buf, ptr, GRUB_DISK_SECTOR_SIZE) != 0)
grub_util_error ("%s", _("blocklists are invalid"));
ptr += GRUB_DISK_SECTOR_SIZE;
len -= GRUB_DISK_SECTOR_SIZE;
bl.block = bl.first_block;
while (bl.block->len)
{
size_t cur = grub_target_to_host16 (bl.block->len) << GRUB_DISK_SECTOR_BITS;
blk = grub_target_to_host64 (bl.block->start);
if (cur > len)
cur = len;
err = grub_disk_read (core_dev->disk, blk + offset, 0, cur, buf);
if (err)
grub_util_error (_("cannot read `%s': %s"), core_dev->disk->name,
grub_errmsg);
if (grub_memcmp (buf, ptr, cur) != 0)
grub_util_error ("%s", _("blocklists are invalid"));
ptr += cur;
len -= cur;
bl.block--;
if ((char *) bl.block <= core_img)
grub_util_error ("%s", _("no terminator in the core image"));
}
if (len)
grub_util_error ("%s", _("blocklists are incomplete"));
core_dev->disk->partition = container;
free (buf);
}
#ifdef GRUB_SETUP_BIOS
finish:
#endif
/* Write the boot image onto the disk. */
if (grub_disk_write (dest_dev->disk, BOOT_SECTOR,
0, GRUB_DISK_SECTOR_SIZE, boot_img))
grub_util_error ("%s", grub_errmsg);
#ifdef GRUB_SETUP_SPARC64
finish:
#endif
grub_util_biosdisk_flush (root_dev->disk);
grub_util_biosdisk_flush (dest_dev->disk);
free (core_path);
free (core_img);
free (boot_img);
grub_device_close (dest_dev);
grub_device_close (root_dev);
}