u-boot/test/py/tests/test_source.py
Sean Anderson bcc85b96b5 cmd: source: Support specifying config name
As discussed previously [1,2], the source command is not safe to use with
verified boot unless there is a key with required = "images" (which has its
own problems). This is because if such a key is absent, signatures are
verified but not required. It is assumed that configuration nodes will
provide the signature. Because the source command does not use
configurations to determine the image to source, effectively no
verification takes place.

To address this, allow specifying configuration nodes. We use the same
syntax as the bootm command (helpfully provided for us by fit_parse_conf).
By default, we first try the default config and then the default image. To
force using a config, # must be present in the command (e.g. `source
$loadaddr#my-conf`). For convenience, the config may be omitted, just like
the address may be (e.g. `source \#`). This also works for images
(`source :` behaves exactly like `source` currently does).

[1] https://lore.kernel.org/u-boot/7d711133-d513-5bcb-52f2-a9dbaa9eeded@prevas.dk/
[2] https://lore.kernel.org/u-boot/042dcb34-f85f-351e-1b0e-513f89005fdd@gmail.com/

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-31 13:35:19 -05:00

37 lines
1.5 KiB
Python

# SPDX-License-Identifier: GPL-2.0+
# Copyright (C) 2022 Sean Anderson <sean.anderson@seco.com>
import os
import pytest
import u_boot_utils as util
@pytest.mark.boardspec('sandbox')
@pytest.mark.buildconfigspec('cmd_echo')
@pytest.mark.buildconfigspec('cmd_source')
@pytest.mark.buildconfigspec('fit')
def test_source(u_boot_console):
# Compile our test script image
cons = u_boot_console
mkimage = os.path.join(cons.config.build_dir, 'tools/mkimage')
its = os.path.join(cons.config.source_dir, 'test/py/tests/source.its')
fit = os.path.join(cons.config.build_dir, 'source.itb')
util.run_and_log(cons, (mkimage, '-f', its, fit))
cons.run_command(f'host load hostfs - $loadaddr {fit}')
assert '2' in cons.run_command('source')
assert '1' in cons.run_command('source :')
assert '1' in cons.run_command('source :script-1')
assert '2' in cons.run_command('source :script-2')
assert 'Fail' in cons.run_command('source :not-a-script || echo Fail')
assert '2' in cons.run_command('source \\#')
assert '1' in cons.run_command('source \\#conf-1')
assert '2' in cons.run_command('source \\#conf-2')
cons.run_command('fdt addr $loadaddr')
cons.run_command('fdt rm /configurations default')
assert '1' in cons.run_command('source')
assert 'Fail' in cons.run_command('source \\# || echo Fail')
cons.run_command('fdt rm /images default')
assert 'Fail' in cons.run_command('source || echo Fail')
assert 'Fail' in cons.run_command('source \\# || echo Fail')