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u-boot/tools/binman/fip_util_test.py
Simon Glass 4583c00236 patman: Move library functions into a library directory 
The patman directory has a number of modules which are used by other tools
in U-Boot. This makes it hard to package the tools using pypi since the
common files must be copied along with the tool that uses them.

To address this, move these files into a new u_boot_pylib library. This
can be packaged separately and listed as a dependency of each tool.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-03-08 11:40:49 -08:00

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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0+
# Copyright 2021 Google LLC
# Written by Simon Glass <sjg@chromium.org>
"""Tests for fip_util
This tests a few features of fip_util which are not covered by binman's ftest.py
"""
import os
import shutil
import sys
import tempfile
import unittest
# Bring in the patman and dtoc libraries (but don't override the first path
# in PYTHONPATH)
OUR_PATH = os.path.dirname(os.path.realpath(__file__))
sys.path.insert(2, os.path.join(OUR_PATH, '..'))
# pylint: disable=C0413
from binman import bintool
from binman import fip_util
from u_boot_pylib import test_util
from u_boot_pylib import tools
FIPTOOL = bintool.Bintool.create('fiptool')
HAVE_FIPTOOL = FIPTOOL.is_present()
# pylint: disable=R0902,R0904
class TestFip(unittest.TestCase):
"""Test of fip_util classes"""
#pylint: disable=W0212
def setUp(self):
# Create a temporary directory for test files
self._indir = tempfile.mkdtemp(prefix='fip_util.')
tools.set_input_dirs([self._indir])
# Set up a temporary output directory, used by the tools library when
# compressing files
tools.prepare_output_dir(None)
self.src_file = os.path.join(self._indir, 'orig.py')
self.outname = tools.get_output_filename('out.py')
self.args = ['-D', '-s', self._indir, '-o', self.outname]
self.readme = os.path.join(self._indir, 'readme.rst')
self.macro_dir = os.path.join(self._indir, 'include/tools_share')
self.macro_fname = os.path.join(self.macro_dir,
'firmware_image_package.h')
self.name_dir = os.path.join(self._indir, 'tools/fiptool')
self.name_fname = os.path.join(self.name_dir, 'tbbr_config.c')
macro_contents = '''
/* ToC Entry UUIDs */
#define UUID_TRUSTED_UPDATE_FIRMWARE_SCP_BL2U \\
{{0x65, 0x92, 0x27, 0x03}, {0x2f, 0x74}, {0xe6, 0x44}, 0x8d, 0xff, {0x57, 0x9a, 0xc1, 0xff, 0x06, 0x10} }
#define UUID_TRUSTED_UPDATE_FIRMWARE_BL2U \\
{{0x60, 0xb3, 0xeb, 0x37}, {0xc1, 0xe5}, {0xea, 0x41}, 0x9d, 0xf3, {0x19, 0xed, 0xa1, 0x1f, 0x68, 0x01} }
'''
name_contents = '''
toc_entry_t toc_entries[] = {
{
.name = "SCP Firmware Updater Configuration FWU SCP_BL2U",
.uuid = UUID_TRUSTED_UPDATE_FIRMWARE_SCP_BL2U,
.cmdline_name = "scp-fwu-cfg"
},
{
.name = "AP Firmware Updater Configuration BL2U",
.uuid = UUID_TRUSTED_UPDATE_FIRMWARE_BL2U,
.cmdline_name = "ap-fwu-cfg"
},
'''
def setup_readme(self):
"""Set up the readme.txt file"""
tools.write_file(self.readme, 'Trusted Firmware-A\n==================',
binary=False)
def setup_macro(self, data=macro_contents):
"""Set up the tbbr_config.c file"""
os.makedirs(self.macro_dir)
tools.write_file(self.macro_fname, data, binary=False)
def setup_name(self, data=name_contents):
"""Set up the firmware_image_package.h file"""
os.makedirs(self.name_dir)
tools.write_file(self.name_fname, data, binary=False)
def tearDown(self):
"""Remove the temporary input directory and its contents"""
if self._indir:
shutil.rmtree(self._indir)
self._indir = None
tools.finalise_output_dir()
def test_no_readme(self):
"""Test handling of a missing readme.rst"""
with self.assertRaises(Exception) as err:
fip_util.main(self.args, self.src_file)
self.assertIn('Expected file', str(err.exception))
def test_invalid_readme(self):
"""Test that an invalid readme.rst is detected"""
tools.write_file(self.readme, 'blah', binary=False)
with self.assertRaises(Exception) as err:
fip_util.main(self.args, self.src_file)
self.assertIn('does not start with', str(err.exception))
def test_no_fip_h(self):
"""Check handling of missing firmware_image_package.h"""
self.setup_readme()
with self.assertRaises(Exception) as err:
fip_util.main(self.args, self.src_file)
self.assertIn('No such file or directory', str(err.exception))
def test_invalid_fip_h(self):
"""Check failure to parse firmware_image_package.h"""
self.setup_readme()
self.setup_macro('blah')
with self.assertRaises(Exception) as err:
fip_util.main(self.args, self.src_file)
self.assertIn('Cannot parse file', str(err.exception))
def test_parse_fip_h(self):
"""Check parsing of firmware_image_package.h"""
self.setup_readme()
# Check parsing the header file
self.setup_macro()
macros = fip_util.parse_macros(self._indir)
expected_macros = {
'UUID_TRUSTED_UPDATE_FIRMWARE_SCP_BL2U':
('ToC Entry UUIDs', 'UUID_TRUSTED_UPDATE_FIRMWARE_SCP_BL2U',
bytes([0x65, 0x92, 0x27, 0x03, 0x2f, 0x74, 0xe6, 0x44,
0x8d, 0xff, 0x57, 0x9a, 0xc1, 0xff, 0x06, 0x10])),
'UUID_TRUSTED_UPDATE_FIRMWARE_BL2U':
('ToC Entry UUIDs', 'UUID_TRUSTED_UPDATE_FIRMWARE_BL2U',
bytes([0x60, 0xb3, 0xeb, 0x37, 0xc1, 0xe5, 0xea, 0x41,
0x9d, 0xf3, 0x19, 0xed, 0xa1, 0x1f, 0x68, 0x01])),
}
self.assertEqual(expected_macros, macros)
def test_missing_tbbr_c(self):
"""Check handlinh of missing tbbr_config.c"""
self.setup_readme()
self.setup_macro()
# Still need the .c file
with self.assertRaises(Exception) as err:
fip_util.main(self.args, self.src_file)
self.assertIn('tbbr_config.c', str(err.exception))
def test_invalid_tbbr_c(self):
"""Check failure to parse tbbr_config.c"""
self.setup_readme()
self.setup_macro()
# Check invalid format for C file
self.setup_name('blah')
with self.assertRaises(Exception) as err:
fip_util.main(self.args, self.src_file)
self.assertIn('Cannot parse file', str(err.exception))
def test_inconsistent_tbbr_c(self):
"""Check tbbr_config.c in a format we don't expect"""
self.setup_readme()
# This is missing a hex value
self.setup_macro('''
/* ToC Entry UUIDs */
#define UUID_TRUSTED_UPDATE_FIRMWARE_SCP_BL2U \\
{{0x65, 0x92, 0x27,}, {0x2f, 0x74}, {0xe6, 0x44}, 0x8d, 0xff, {0x57, 0x9a, 0xc1, 0xff, 0x06, 0x10} }
#define UUID_TRUSTED_UPDATE_FIRMWARE_BL2U \\
{{0x60, 0xb3, 0xeb, 0x37}, {0xc1, 0xe5}, {0xea, 0x41}, 0x9d, 0xf3, {0x19, 0xed, 0xa1, 0x1f, 0x68, 0x01} }
''')
# Check invalid format for C file
self.setup_name('blah')
with self.assertRaises(Exception) as err:
fip_util.main(self.args, self.src_file)
self.assertIn('Cannot parse UUID line 5', str(err.exception))
def test_parse_tbbr_c(self):
"""Check parsing tbbr_config.c"""
self.setup_readme()
self.setup_macro()
self.setup_name()
names = fip_util.parse_names(self._indir)
expected_names = {
'UUID_TRUSTED_UPDATE_FIRMWARE_SCP_BL2U': (
'SCP Firmware Updater Configuration FWU SCP_BL2U',
'UUID_TRUSTED_UPDATE_FIRMWARE_SCP_BL2U',
'scp-fwu-cfg'),
'UUID_TRUSTED_UPDATE_FIRMWARE_BL2U': (
'AP Firmware Updater Configuration BL2U',
'UUID_TRUSTED_UPDATE_FIRMWARE_BL2U',
'ap-fwu-cfg'),
}
self.assertEqual(expected_names, names)
def test_uuid_not_in_tbbr_config_c(self):
"""Check handling a UUID in the header file that's not in the .c file"""
self.setup_readme()
self.setup_macro(self.macro_contents + '''
#define UUID_TRUSTED_OS_FW_KEY_CERT \\
{{0x94, 0x77, 0xd6, 0x03}, {0xfb, 0x60}, {0xe4, 0x11}, 0x85, 0xdd, {0xb7, 0x10, 0x5b, 0x8c, 0xee, 0x04} }
''')
self.setup_name()
macros = fip_util.parse_macros(self._indir)
names = fip_util.parse_names(self._indir)
with test_util.capture_sys_output() as (stdout, _):
fip_util.create_code_output(macros, names)
self.assertIn(
"UUID 'UUID_TRUSTED_OS_FW_KEY_CERT' is not mentioned in tbbr_config.c file",
stdout.getvalue())
def test_changes(self):
"""Check handling of a source file that does/doesn't need changes"""
self.setup_readme()
self.setup_macro()
self.setup_name()
# Check generating the file when changes are needed
tools.write_file(self.src_file, '''
# This is taken from tbbr_config.c in ARM Trusted Firmware
FIP_TYPE_LIST = [
# ToC Entry UUIDs
FipType('scp-fwu-cfg', 'SCP Firmware Updater Configuration FWU SCP_BL2U',
[0x65, 0x92, 0x27, 0x03, 0x2f, 0x74, 0xe6, 0x44,
0x8d, 0xff, 0x57, 0x9a, 0xc1, 0xff, 0x06, 0x10]),
] # end
blah de blah
''', binary=False)
with test_util.capture_sys_output() as (stdout, _):
fip_util.main(self.args, self.src_file)
self.assertIn('Needs update', stdout.getvalue())
# Check generating the file when no changes are needed
tools.write_file(self.src_file, '''
# This is taken from tbbr_config.c in ARM Trusted Firmware
FIP_TYPE_LIST = [
# ToC Entry UUIDs
FipType('scp-fwu-cfg', 'SCP Firmware Updater Configuration FWU SCP_BL2U',
[0x65, 0x92, 0x27, 0x03, 0x2f, 0x74, 0xe6, 0x44,
0x8d, 0xff, 0x57, 0x9a, 0xc1, 0xff, 0x06, 0x10]),
FipType('ap-fwu-cfg', 'AP Firmware Updater Configuration BL2U',
[0x60, 0xb3, 0xeb, 0x37, 0xc1, 0xe5, 0xea, 0x41,
0x9d, 0xf3, 0x19, 0xed, 0xa1, 0x1f, 0x68, 0x01]),
] # end
blah blah''', binary=False)
with test_util.capture_sys_output() as (stdout, _):
fip_util.main(self.args, self.src_file)
self.assertIn('is up-to-date', stdout.getvalue())
def test_no_debug(self):
"""Test running without the -D flag"""
self.setup_readme()
self.setup_macro()
self.setup_name()
args = self.args.copy()
args.remove('-D')
tools.write_file(self.src_file, '', binary=False)
with test_util.capture_sys_output():
fip_util.main(args, self.src_file)
@unittest.skipIf(not HAVE_FIPTOOL, 'No fiptool available')
def test_fiptool_list(self):
"""Create a FIP and check that fiptool can read it"""
fwu = b'my data'
tb_fw = b'some more data'
fip = fip_util.FipWriter(0x123, 0x10)
fip.add_entry('fwu', fwu, 0x456)
fip.add_entry('tb-fw', tb_fw, 0)
fip.add_entry(bytes(range(16)), tb_fw, 0)
data = fip.get_data()
fname = tools.get_output_filename('data.fip')
tools.write_file(fname, data)
result = FIPTOOL.info(fname)
self.assertEqual(
'''Firmware Updater NS_BL2U: offset=0xB0, size=0x7, cmdline="--fwu"
Trusted Boot Firmware BL2: offset=0xC0, size=0xE, cmdline="--tb-fw"
00010203-0405-0607-0809-0A0B0C0D0E0F: offset=0xD0, size=0xE, cmdline="--blob"
''',
result)
fwu_data = b'my data'
tb_fw_data = b'some more data'
other_fw_data = b'even more'
def create_fiptool_image(self):
"""Create an image with fiptool which we can use for testing
Returns:
FipReader: reader for the image
"""
fwu = os.path.join(self._indir, 'fwu')
tools.write_file(fwu, self.fwu_data)
tb_fw = os.path.join(self._indir, 'tb_fw')
tools.write_file(tb_fw, self.tb_fw_data)
other_fw = os.path.join(self._indir, 'other_fw')
tools.write_file(other_fw, self.other_fw_data)
fname = tools.get_output_filename('data.fip')
uuid = 'e3b78d9e-4a64-11ec-b45c-fba2b9b49788'
FIPTOOL.create_new(fname, 8, 0x123, fwu, tb_fw, uuid, other_fw)
return fip_util.FipReader(tools.read_file(fname))
@unittest.skipIf(not HAVE_FIPTOOL, 'No fiptool available')
def test_fiptool_create(self):
"""Create a FIP with fiptool and check that fip_util can read it"""
reader = self.create_fiptool_image()
header = reader.header
fents = reader.fents
self.assertEqual(0x123 << 32, header.flags)
self.assertEqual(fip_util.HEADER_MAGIC, header.name)
self.assertEqual(fip_util.HEADER_SERIAL, header.serial)
self.assertEqual(3, len(fents))
fent = fents[0]
self.assertEqual(
bytes([0x4f, 0x51, 0x1d, 0x11, 0x2b, 0xe5, 0x4e, 0x49,
0xb4, 0xc5, 0x83, 0xc2, 0xf7, 0x15, 0x84, 0x0a]), fent.uuid)
self.assertEqual(0xb0, fent.offset)
self.assertEqual(len(self.fwu_data), fent.size)
self.assertEqual(0, fent.flags)
self.assertEqual(self.fwu_data, fent.data)
fent = fents[1]
self.assertEqual(
bytes([0x5f, 0xf9, 0xec, 0x0b, 0x4d, 0x22, 0x3e, 0x4d,
0xa5, 0x44, 0xc3, 0x9d, 0x81, 0xc7, 0x3f, 0x0a]), fent.uuid)
self.assertEqual(0xb8, fent.offset)
self.assertEqual(len(self.tb_fw_data), fent.size)
self.assertEqual(0, fent.flags)
self.assertEqual(self.tb_fw_data, fent.data)
fent = fents[2]
self.assertEqual(
bytes([0xe3, 0xb7, 0x8d, 0x9e, 0x4a, 0x64, 0x11, 0xec,
0xb4, 0x5c, 0xfb, 0xa2, 0xb9, 0xb4, 0x97, 0x88]), fent.uuid)
self.assertEqual(0xc8, fent.offset)
self.assertEqual(len(self.other_fw_data), fent.size)
self.assertEqual(0, fent.flags)
self.assertEqual(self.other_fw_data, fent.data)
@unittest.skipIf(not HAVE_FIPTOOL, 'No fiptool available')
def test_reader_get_entry(self):
"""Test get_entry() by name and UUID"""
reader = self.create_fiptool_image()
fents = reader.fents
fent = reader.get_entry('fwu')
self.assertEqual(fent, fents[0])
fent = reader.get_entry(
bytes([0x5f, 0xf9, 0xec, 0x0b, 0x4d, 0x22, 0x3e, 0x4d,
0xa5, 0x44, 0xc3, 0x9d, 0x81, 0xc7, 0x3f, 0x0a]))
self.assertEqual(fent, fents[1])
# Try finding entries that don't exist
with self.assertRaises(Exception) as err:
fent = reader.get_entry('scp-fwu-cfg')
self.assertIn("Cannot find FIP entry 'scp-fwu-cfg'", str(err.exception))
with self.assertRaises(Exception) as err:
fent = reader.get_entry(bytes(list(range(16))))
self.assertIn(
"Cannot find FIP entry '00010203-0405-0607-0809-0a0b0c0d0e0f'",
str(err.exception))
with self.assertRaises(Exception) as err:
fent = reader.get_entry('blah')
self.assertIn("Unknown FIP entry type 'blah'", str(err.exception))
@unittest.skipIf(not HAVE_FIPTOOL, 'No fiptool available')
def test_fiptool_errors(self):
"""Check some error reporting from fiptool"""
with self.assertRaises(Exception) as err:
with test_util.capture_sys_output():
FIPTOOL.create_bad()
self.assertIn("unrecognized option '--fred'", str(err.exception))
if __name__ == '__main__':
unittest.main()
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