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9f9de386c1
mkimage has support for OpenSSL engines but binman currently doesn't for direct callers of mkimage (e.g. the fit etype). This prepares for adding support for OpenSSL engines for signing elements of a FIT image, which will done in the next commit. Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright 2022 Google LLC
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#
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"""Bintool implementation for mkimage"""
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import re
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from binman import bintool
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class Bintoolmkimage(bintool.Bintool):
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"""Image generation for U-Boot
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This bintool supports running `mkimage` with some basic parameters as
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needed by binman.
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Normally binman uses the mkimage built by U-Boot. But when run outside the
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U-Boot build system, binman can use the version installed in your system.
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Support is provided for fetching this on Debian-like systems, using apt.
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"""
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def __init__(self, name):
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super().__init__(name, 'Generate image for U-Boot', r'mkimage version (.*)')
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# pylint: disable=R0913
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def run(self, reset_timestamp=False, output_fname=None, external=False,
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pad=None, align=None, keys_dir=None, engine=None):
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"""Run mkimage
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Args:
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reset_timestamp: True to update the timestamp in the FIT
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output_fname: Output filename to write to
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external: True to create an 'external' FIT, where the binaries are
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located outside the main data structure
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pad: Bytes to use for padding the FIT devicetree output. This allows
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other things to be easily added later, if required, such as
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signatures
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align: Bytes to use for alignment of the FIT and its external data
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keys_dir: Path to directory containing private and encryption keys
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engine: Name of the OpenSSL engine to use
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"""
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args = []
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if external:
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args.append('-E')
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if pad:
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args += ['-p', f'{pad:x}']
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if align:
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args += ['-B', f'{align:x}']
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if reset_timestamp:
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args.append('-t')
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if keys_dir:
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args += ['-k', f'{keys_dir}']
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if output_fname:
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args += ['-F', output_fname]
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if engine:
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args += ['-N', engine]
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return self.run_cmd(*args)
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def fetch(self, method):
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"""Fetch handler for mkimage
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This installs mkimage using the apt utility.
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Args:
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method (FETCH_...): Method to use
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Returns:
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True if the file was fetched and now installed, None if a method
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other than FETCH_BIN was requested
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Raises:
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Valuerror: Fetching could not be completed
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"""
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if method != bintool.FETCH_BIN:
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return None
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return self.apt_install('u-boot-tools')
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