blob: 6b18e96249095d7ef87234793bbfc31bdb402675 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
#!/usr/bin/env sh
# script to automate extracting blobs from an existing vendor bios
# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
# SPDX-FileCopyrightText: 2023 Leah Rowe <leah@libreboot.org>
# SPDX-License-Identifier: GPL-3.0-only
sname=""
board=""
vendor_rom=""
cbdir="coreboot/default"
cbcfgsdir="resources/coreboot"
ifdtool="${cbdir}/util/ifdtool/ifdtool"
mecleaner="me_cleaner/me_cleaner.py"
me7updateparser="resources/blobs/me7_update_parser.py"
boarddir=""
CONFIG_HAVE_MRC=""
CONFIG_ME_BIN_PATH=""
CONFIG_GBE_BIN_PATH=""
CONFIG_IFD_BIN_PATH=""
_me_destination=""
_gbe_destination=""
_ifd_destination=""
main()
{
sname=${0}
[ $# -lt 2 ] && fail "Missing arguments (fewer than two)."
board="${1}"
vendor_rom="${2}"
boarddir="${cbcfgsdir}/${board}"
check_board
build_dependencies
extract_blobs
}
check_board()
{
[ -f "${vendor_rom}" ] || \
fail "file does not exist: ${vendor_rom}"
[ -d "${boarddir}" ] || \
fail "build/roms ${board}: target not defined"
[ -f "${boarddir}/target.cfg" ] || \
fail "build/roms ${board}: missing target.cfg"
}
build_dependencies()
{
[ -d me_cleaner ] || \
./fetch me_cleaner || fail "can't fetch me_cleaner"
[ -d ${cbdir} ] || \
./fetch_trees coreboot default || fail "can't fetch coreboot"
[ -f ${ifdtool} ] || \
make -C "${ifdtool%/ifdtool}" || fail "can't build ifdtool"
}
extract_blobs()
{
printf "extracting blobs for %s from %s\n" ${board} ${vendor_rom}
set -- "${boarddir}/config/"*
. ${1} 2>/dev/null
. "${boarddir}/target.cfg"
[ "$CONFIG_HAVE_MRC" != "y" ] || \
./update blobs mrc || fail "could not download mrc"
_me_destination=${CONFIG_ME_BIN_PATH#../../}
_gbe_destination=${CONFIG_GBE_BIN_PATH#../../}
_ifd_destination=${CONFIG_IFD_BIN_PATH#../../}
extract_blob_intel_me
extract_blob_intel_gbe_nvm
# Cleans up other files extracted with ifdtool
rm -f flashregion*.bin 2> /dev/null
[ -f ${_ifd_destination} ] || fail "Could not extract IFD"
printf "gbe, ifd, and me extracted to %s\n" \
${_me_destination%/*}
}
extract_blob_intel_me()
{
printf "extracting clean ime and modified ifd\n"
${mecleaner} -D ${_ifd_destination} \
-M ${_me_destination} ${vendor_rom} -t -r -S || \
${me7updateparser} \
-O ${_me_destination} ${vendor_rom} || \
fail "me_cleaner failed to extract blobs from rom"
}
extract_blob_intel_gbe_nvm()
{
printf "extracting gigabit ethernet firmware"
./${ifdtool} -x ${vendor_rom}
mv flashregion*gbe.bin ${_gbe_destination} || \
fail 'could not extract gbe'
}
fail()
{
print_help
printf "\n%s: ERROR: %s\n" ${sname} $@
exit 1
}
print_help()
{
printf "Usage: ./update blobs extract {boardname} {path/to/vendor_rom}\n"
printf "Example: ./update blobs extract x230 12mb_flash.bin\n"
printf "\nYou need to specify exactly 2 arguments\n"
}
main $@
|
