| #!/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() |
