coreboot-kgpe-d16/util/exynos/fixed_cksum.py

#!/usr/bin/env python3
#
# SPDX-License-Identifier: BSD-3-Clause

"""
This utility computes and fills Exynos ROM checksum (for BL1 or BL2).
(Algorithm from U-Boot: tools/mkexynosspl.c)

Input: IN OUT DATA_SIZE

Output:

  IN padded out to DATA_SIZE, checksum at the end, written to OUT.
"""

import struct
import sys

def main(argv):
  if len(argv) != 4:
    exit('usage: %s IN OUT DATA_SIZE' % argv[0])

  in_name, out_name = argv[1:3]
  size = int(argv[3], 0)
  checksum_format = "<I"
  with open(in_name, "rb") as in_file, open(out_name, "wb") as out_file:
    data = in_file.read()
    checksum_size = struct.calcsize(checksum_format)
    data_size = size - checksum_size
    assert len(data) <= data_size
    checksum = struct.pack(checksum_format, sum(data))
    out_file.write(data + bytearray(data_size - len(data)) + checksum)


if __name__ == '__main__':
  main(sys.argv)
util/exynos: Port *_cksum.py to python3 BUG=chromium:1023662 TEST=1. Create a tiny file `in.txt` as input 2. Run `fixed_cksum.py in.txt out.txt 20` with py2 and py3 version, the output is the same 3. Run `variable_cksum.py in.txt out.txt` with py2 and py3 version, the output is the same Signed-off-by: Yilin Yang <kerker@google.com> Change-Id: I9428269dfb826a3a95fffef9ea3f7c1a7107ef84 Reviewed-on: https://review.coreboot.org/c/coreboot/+/45460 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> 2020-09-17 03:14:11 +02:00			`#!/usr/bin/env python3`
exynos: Install the BL1 and set the checksum in the Makefile. Install the BL1 and set up the checksum in the Makefile instead of relying on post processing. Import the exynos checksum script, split it in two and simplify it significantly. Stop putting the CBFS header in the midst of the bootblock so that it can be checksummed before CBFS is put together. Stop saving space for it and leaving an anchor in the bootblock which nobody looks for. Change-Id: Icbb5a5914ece60b2827433b6dc29d80db996ea6c Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/179229 Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit aa3a416705517c0a6ddfdeb19905ac8cafb33df1) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6834 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> 2013-12-08 21:48:45 +01:00			`#`
treewide: Replace BSD-3-Clause and ISC headers with SPDX headers Commands used: perl -i -p0e 's\|\/\[\s]Permission[\s]to[\s]use,[\s]copy,[\s]modify,[\s]and.or[\s]distribute[\s]this[\s]software[\s]for[\s]any[\s]purpose[\s]with[\s]or[\s]without[\s]fee[\s]is[\s]hereby[\s]granted,[\s]provided[\s]that[\s]the[\s]above[\s]copyright[\s]notice[\s]and[\s]this[\s]permission[\s]notice[\s]appear[\s]in[\s]all[\s]copies.[\s]THE[\s]SOFTWARE[\s]IS[\s]PROVIDED[\s].AS[\s]IS.[\s]AND[\s]THE[\s]AUTHOR[\s]DISCLAIMS[\s]ALL[\s]WARRANTIES[\s]WITH[\s]REGARD[\s]TO[\s]THIS[\s]SOFTWARE[\s]INCLUDING[\s]ALL[\s]IMPLIED[\s]WARRANTIES[\s]OF[\s]MERCHANTABILITY[\s]AND[\s]FITNESS.[\s]IN[\s]NO[\s]EVENT[\s]SHALL[\s]THE[\s]AUTHOR[\s]BE[\s]LIABLE[\s]FOR[\s]ANY[\s]SPECIAL,[\s]DIRECT,[\s]INDIRECT,[\s]OR[\s]CONSEQUENTIAL[\s]DAMAGES[\s]OR[\s]ANY[\s]DAMAGES[\s]WHATSOEVER[\s]RESULTING[\s]FROM[\s]LOSS[\s]OF[\s]USE,[\s]DATA[\s]OR[\s]PROFITS,[\s]WHETHER[\s]IN[\s]AN[\s]ACTION[\s]OF[\s]CONTRACT,[\s]NEGLIGENCE[\s]OR[\s]OTHER[\s]TORTIOUS[\s]ACTION,[\s]ARISING[\s]OUT[\s]OF[\s]OR[\s]IN[\s]CONNECTION[\s]WITH[\s]THE[\s]USE[\s]OR[\s]PERFORMANCE[\s]OF[\s]THIS[\s]SOFTWARE.[\s]\\/\|/* SPDX-License-Identifier: ISC /\|s' $(cat filelist) perl -i -p0e 's\|(\#\#)\sPermission[\#\s]to[\#\s]use,[\#\s]copy,[\#\s]modify,[\#\s]and.or[\#\s]distribute[\#\s]this[\#\s]software[\#\s]for[\#\s]any[\#\s]purpose[\#\s]with[\#\s]or[\#\s]without[\#\s]fee[\#\s]is[\#\s]hereby[\#\s]granted,[\#\s]provided[\#\s]that[\#\s]the[\#\s]above[\#\s]copyright[\#\s]notice[\#\s]and[\#\s]this[\#\s]permission[\#\s]notice[\#\s]appear[\#\s]in[\#\s]all[\#\s]copies.[\#\s]THE[\#\s]SOFTWARE[\#\s]IS[\#\s]PROVIDED[\#\s].AS[\#\s]IS.[\#\s]AND[\#\s]THE[\#\s]AUTHOR[\#\s]DISCLAIMS[\#\s]ALL[\#\s]WARRANTIES[\#\s]WITH[\#\s]REGARD[\#\s]TO[\#\s]THIS[\#\s]SOFTWARE[\#\s]INCLUDING[\#\s]ALL[\#\s]IMPLIED[\#\s]WARRANTIES[\#\s]OF[\#\s]MERCHANTABILITY[\#\s]AND[\#\s]FITNESS.[\#\s]IN[\#\s]NO[\#\s]EVENT[\#\s]SHALL[\#\s]THE[\#\s]AUTHOR[\#\s]BE[\#\s]LIABLE[\#\s]FOR[\#\s]ANY[\#\s]SPECIAL,[\#\s]DIRECT,[\#\s]INDIRECT,[\#\s]OR[\#\s]CONSEQUENTIAL[\#\s]DAMAGES[\#\s]OR[\#\s]ANY[\#\s]DAMAGES[\#\s]WHATSOEVER[\#\s]RESULTING[\#\s]FROM[\#\s]LOSS[\#\s]OF[\#\s]USE,[\#\s]DATA[\#\s]OR[\#\s]PROFITS,[\#\s]WHETHER[\#\s]IN[\#\s]AN[\#\s]ACTION[\#\s]OF[\#\s]CONTRACT,[\#\s]NEGLIGENCE[\#\s]OR[\#\s]OTHER[\#\s]TORTIOUS[\#\s]ACTION,[\#\s]ARISING[\#\s]OUT[\#\s]OF[\#\s]OR[\#\s]IN[\#\s]CONNECTION[\#\s]WITH[\#\s]THE[\#\s]USE[\#\s]OR[\#\s]PERFORMANCE[\#\s]OF[\#\s]THIS[\#\s]SOFTWARE.\s(\# \n)\|\1 SPDX-License-Identifier: ISC\n\n\|s' $(cat filelist) perl -i -p0e 's\|\/\[\s]Redistribution[\s]and[\s]use[\s]in[\s]source[\s]and[\s]binary[\s]forms,[\s]with[\s]or[\s]without[\s]modification,[\s]are[\s]permitted[\s]provided[\s]that[\s]the[\s]following[\s]conditions[\s]are[\s]met:[\s][1. ]Redistributions[\s]of[\s]source[\s]code[\s]must[\s]retain[\s]the[\s]above[\s]copyright[\s]notice,[\s]this[\s]list[\s]of[\s]conditions[\s]and[\s]the[\s]following[\s]disclaimer.[\s][\s][2. ]Redistributions[\s]in[\s]binary[\s]form[\s]must[\s]reproduce[\s]the[\s]above[\s]copyright[\s]notice,[\s]this[\s]list[\s]of[\s]conditions[\s]and[\s]the[\s]following[\s]disclaimer[\s]in[\s]the[\s]documentation[\s]and.or[\s]other[\s]materials[\s]provided[\s]with[\s]the[\s]distribution.[\s][3. ].used[\s]to[\s]endorse[\s]or[\s]promote[\s]products[\s]derived[\s]from[\s]this[\s]software[\s]without[\s]specific[\s]prior[\s]written[\s]permission.[\s]THIS[\s]SOFTWARE[\s]IS[\s]PROVIDED.AS[\s]IS.[\s]AND[\s]ANY[\s]EXPRESS[\s]OR[\s]IMPLIED[\s]WARRANTIES,[\s]INCLUDING,[\s]BUT[\s]NOT[\s]LIMITED[\s]TO,[\s]THE[\s]IMPLIED[\s]WARRANTIES[\s]OF[\s]MERCHANTABILITY.FITNESS[\s]FOR[\s]A[\s]PARTICULAR[\s]PURPOSE.ARE[\s]DISCLAIMED.[\s]IN[\s]NO[\s]EVENT[\s]SHALL.LIABLE[\s]FOR[\s]ANY[\s]DIRECT,[\s]INDIRECT,[\s]INCIDENTAL,[\s]SPECIAL,[\s]EXEMPLARY,[\s]OR[\s]CONSEQUENTIAL[\s]DAMAGES[\s].INCLUDING,[\s]BUT[\s]NOT[\s]LIMITED[\s]TO,[\s]PROCUREMENT[\s]OF[\s]SUBSTITUTE[\s]GOODS[\s]OR[\s]SERVICES;[\s]LOSS[\s]OF[\s]USE,[\s]DATA,[\s]OR[\s]PROFITS;[\s]OR[\s]BUSINESS[\s]INTERRUPTION.[\s]HOWEVER[\s]CAUSED[\s]AND[\s]ON[\s]ANY[\s]THEORY[\s]OF[\s]LIABILITY,[\s]WHETHER[\s]IN[\s]CONTRACT,[\s]STRICT[\s]LIABILITY,[\s]OR[\s]TORT[\s].INCLUDING[\s]NEGLIGENCE[\s]OR[\s]OTHERWISE.[\s]ARISING[\s]IN[\s]ANY[\s]WAY[\s]OUT[\s]OF[\s]THE[\s]USE[\s]OF[\s]THIS[\s]SOFTWARE,[\s]EVEN[\s]IF[\s]ADVISED[\s]OF[\s]THE[\s]POSSIBILITY[\s]OF[\s]SUCH[\s]DAMAGE.[\s]\\/\|/ SPDX-License-Identifier: BSD-3-Clause /\|s' $(cat filelist) $1 perl -i -p0e 's\|(\#\#) Redistribution[\#\s]and[\#\s]use[\#\s]in[\#\s]source[\#\s]and[\#\s]binary[\#\s]forms,[\#\s]with[\#\s]or[\#\s]without[\#\s]modification,[\#\s]are[\#\s]permitted[\#\s]provided[\#\s]that[\#\s]the[\#\s]following[\#\s]conditions[\#\s]are[\#\s]met:[\#\s][1. ]Redistributions[\#\s]of[\#\s]source[\#\s]code[\#\s]must[\#\s]retain[\#\s]the[\#\s]above[\#\s]copyright[\#\s]notice,[\#\s]this[\#\s]list[\#\s]of[\#\s]conditions[\#\s]and[\#\s]the[\#\s]following[\#\s]disclaimer.[\#\s][2. ]Redistributions[\#\s]in[\#\s]binary[\#\s]form[\#\s]must[\#\s]reproduce[\#\s]the[\#\s]above[\#\s]copyright[\#\s]notice,[\#\s]this[\#\s]list[\#\s]of[\#\s]conditions[\#\s]and[\#\s]the[\#\s]following[\#\s]disclaimer[\#\s]in[\#\s]the[\#\s]documentation[\#\s]and.or[\#\s]other[\#\s]materials[\#\s]provided[\#\s]with[\#\s]the[\#\s]distribution.[\#\s][\#\s][3. ].used[\#\s]to[\#\s]endorse[\#\s]or[\#\s]promote[\#\s]products[\#\s]derived[\#\s]from[\#\s]this[\#\s]software[\#\s]without[\#\s]specific[\#\s]prior[\#\s]written[\#\s]permission.[\#\s]THIS[\#\s]SOFTWARE[\#\s]IS[\#\s]PROVIDED.AS[\#\s]IS.[\#\s]AND[\#\s]ANY[\#\s]EXPRESS[\#\s]OR[\#\s]IMPLIED[\#\s]WARRANTIES,[\#\s]INCLUDING,[\#\s]BUT[\#\s]NOT[\#\s]LIMITED[\#\s]TO,[\#\s]THE[\#\s]IMPLIED[\#\s]WARRANTIES[\#\s]OF[\#\s]MERCHANTABILITY.FITNESS[\#\s]FOR[\#\s]A[\#\s]PARTICULAR[\#\s]PURPOSE.ARE[\#\s]DISCLAIMED.[\#\s]IN[\#\s]NO[\#\s]EVENT[\#\s]SHALL.LIABLE[\#\s]FOR[\#\s]ANY[\#\s]DIRECT,[\#\s]INDIRECT,[\#\s]INCIDENTAL,[\#\s]SPECIAL,[\#\s]EXEMPLARY,[\#\s]OR[\#\s]CONSEQUENTIAL[\#\s]DAMAGES[\#\s].INCLUDING,[\#\s]BUT[\#\s]NOT[\#\s]LIMITED[\#\s]TO,[\#\s]PROCUREMENT[\#\s]OF[\#\s]SUBSTITUTE[\#\s]GOODS[\#\s]OR[\#\s]SERVICES;[\#\s]LOSS[\#\s]OF[\#\s]USE,[\#\s]DATA,[\#\s]OR[\#\s]PROFITS;[\#\s]OR[\#\s]BUSINESS[\#\s]INTERRUPTION.[\#\s]HOWEVER[\#\s]CAUSED[\#\s]AND[\#\s]ON[\#\s]ANY[\#\s]THEORY[\#\s]OF[\#\s]LIABILITY,[\#\s]WHETHER[\#\s]IN[\#\s]CONTRACT,[\#\s]STRICT[\#\s]LIABILITY,[\#\s]OR[\#\s]TORT[\#\s].INCLUDING[\#\s]NEGLIGENCE[\#\s]OR[\#\s]OTHERWISE.[\#\s]ARISING[\#\s]IN[\#\s]ANY[\#\s]WAY[\#\s]OUT[\#\s]OF[\#\s]THE[\#\s]USE[\#\s]OF[\#\s]THIS[\#\s]SOFTWARE,[\#\s]EVEN[\#\s]IF[\#\s]ADVISED[\#\s]OF[\#\s]THE[\#\s]POSSIBILITY[\#\s]OF[\#\s]SUCH[\#\s]DAMAGE.\s(\#* \n)\|\1 SPDX-License-Identifier: BSD-3-Clause\n\n\|s' $(cat filelist) Change-Id: I7ff9c503a2efe1017a4666baf0b1a758a04f5634 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41204 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> 2020-05-10 18:47:05 +02:00			`# SPDX-License-Identifier: BSD-3-Clause`
exynos: Install the BL1 and set the checksum in the Makefile. Install the BL1 and set up the checksum in the Makefile instead of relying on post processing. Import the exynos checksum script, split it in two and simplify it significantly. Stop putting the CBFS header in the midst of the bootblock so that it can be checksummed before CBFS is put together. Stop saving space for it and leaving an anchor in the bootblock which nobody looks for. Change-Id: Icbb5a5914ece60b2827433b6dc29d80db996ea6c Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/179229 Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit aa3a416705517c0a6ddfdeb19905ac8cafb33df1) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6834 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> 2013-12-08 21:48:45 +01:00
			`"""`
			`This utility computes and fills Exynos ROM checksum (for BL1 or BL2).`
			`(Algorithm from U-Boot: tools/mkexynosspl.c)`

			`Input: IN OUT DATA_SIZE`

			`Output:`

			`IN padded out to DATA_SIZE, checksum at the end, written to OUT.`
			`"""`

			`import struct`
			`import sys`

			`def main(argv):`
			`if len(argv) != 4:`
			`exit('usage: %s IN OUT DATA_SIZE' % argv[0])`

			`in_name, out_name = argv[1:3]`
			`size = int(argv[3], 0)`
			`checksum_format = "<I"`
			`with open(in_name, "rb") as in_file, open(out_name, "wb") as out_file:`
			`data = in_file.read()`
			`checksum_size = struct.calcsize(checksum_format)`
			`data_size = size - checksum_size`
			`assert len(data) <= data_size`
util/exynos: Port *_cksum.py to python3 BUG=chromium:1023662 TEST=1. Create a tiny file `in.txt` as input 2. Run `fixed_cksum.py in.txt out.txt 20` with py2 and py3 version, the output is the same 3. Run `variable_cksum.py in.txt out.txt` with py2 and py3 version, the output is the same Signed-off-by: Yilin Yang <kerker@google.com> Change-Id: I9428269dfb826a3a95fffef9ea3f7c1a7107ef84 Reviewed-on: https://review.coreboot.org/c/coreboot/+/45460 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> 2020-09-17 03:14:11 +02:00			`checksum = struct.pack(checksum_format, sum(data))`
exynos: Install the BL1 and set the checksum in the Makefile. Install the BL1 and set up the checksum in the Makefile instead of relying on post processing. Import the exynos checksum script, split it in two and simplify it significantly. Stop putting the CBFS header in the midst of the bootblock so that it can be checksummed before CBFS is put together. Stop saving space for it and leaving an anchor in the bootblock which nobody looks for. Change-Id: Icbb5a5914ece60b2827433b6dc29d80db996ea6c Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: https://chromium-review.googlesource.com/179229 Reviewed-by: Ronald Minnich <rminnich@chromium.org> Commit-Queue: Gabe Black <gabeblack@chromium.org> Tested-by: Gabe Black <gabeblack@chromium.org> (cherry picked from commit aa3a416705517c0a6ddfdeb19905ac8cafb33df1) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6834 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> 2013-12-08 21:48:45 +01:00			`out_file.write(data + bytearray(data_size - len(data)) + checksum)`


			`if __name__ == '__main__':`
			`main(sys.argv)`