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#!/usr/bin/python3
import itertools
import os
import pathlib
import sys
from debian_linux.config_v2 import Config
from debian_linux.kconfig import KconfigFile
class CheckSecureBootConfig:
def __init__(self, config, dir, *_):
self.config = config
self.dir = pathlib.Path(dir)
def __call__(self, out):
fail = 0
if self.config.build.enable_signed \
and not os.getenv('DEBIAN_KERNEL_DISABLE_SIGNED'):
kconfig = KconfigFile()
with (self.dir / '.config').open() as fh:
kconfig.read(fh)
for name, value in [('EFI_STUB', True),
('LOCK_DOWN_IN_EFI_SECURE_BOOT', True),
('SYSTEM_TRUSTED_KEYS', '""')]:
if name not in kconfig:
out.write(f'Secure Boot: CONFIG_{name} is not defined\n')
fail = 1
elif kconfig[name].value != value:
out.write(f'Secure Boot: CONFIG_{name} has wrong value:'
f' {kconfig[name].value}\n')
fail = 1
if kconfig.get('MODULE_SIG_KEY').value == '"certs/signing_key.pem"':
out.write('Secure Boot: CONFIG_MODULE_SIG_KEY has default value\n')
fail = 1
return fail
class Main(object):
checks = {
'setup': [CheckSecureBootConfig],
'build': [],
}
def __init__(self, dir, arch, featureset, flavour, phase):
self.args = dir, arch, featureset, flavour
self.phase = phase
config_dirs = [
pathlib.Path('debian/config'),
pathlib.Path('debian/config.local'),
]
top_config = Config.read_orig(config_dirs).merged
arch_config = next(
ac
for ac in itertools.chain.from_iterable(
kac.debianarchs for kac in top_config.kernelarchs)
if ac.name == arch
)
fs_config = next(fsc for fsc in arch_config.featuresets
if fsc.name == featureset)
self.config = next(fc for fc in fs_config.flavours
if fc.name == flavour)
def __call__(self):
fail = 0
for c in self.checks[self.phase]:
fail |= c(self.config, *self.args)(sys.stdout)
return fail
if __name__ == '__main__':
sys.exit(Main(*sys.argv[1:])())
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