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Eric Snowberg d1f044103d certs: Add ability to preload revocation certs

Add a new Kconfig option called SYSTEM_REVOCATION_KEYS. If set,
this option should be the filename of a PEM-formated file containing
X.509 certificates to be included in the default blacklist keyring.

DH Changes:
 - Make the new Kconfig option depend on SYSTEM_REVOCATION_LIST.
 - Fix SYSTEM_REVOCATION_KEYS=n, but CONFIG_SYSTEM_REVOCATION_LIST=y[1][2].
 - Use CONFIG_SYSTEM_REVOCATION_LIST for extract-cert[3].
 - Use CONFIG_SYSTEM_REVOCATION_LIST for revocation_certificates.o[3].

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Randy Dunlap <rdunlap@infradead.org>
cc: keyrings@vger.kernel.org
Link: https://lore.kernel.org/r/e1c15c74-82ce-3a69-44de-a33af9b320ea@infradead.org/ [1]
Link: https://lore.kernel.org/r/20210303034418.106762-1-eric.snowberg@oracle.com/ [2]
Link: https://lore.kernel.org/r/20210304175030.184131-1-eric.snowberg@oracle.com/ [3]
Link: https://lore.kernel.org/r/20200930201508.35113-3-eric.snowberg@oracle.com/
Link: https://lore.kernel.org/r/20210122181054.32635-4-eric.snowberg@oracle.com/ # v5
Link: https://lore.kernel.org/r/161428673564.677100.4112098280028451629.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/161433312452.902181.4146169951896577982.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/161529606657.163428.3340689182456495390.stgit@warthog.procyon.org.uk/ # v3

2021-03-11 16:33:49 +00:00

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SPDX-License-Identifier: GPL-2.0

scripts contains sources for various helper programs used throughout

the kernel for the build process.

hostprogs-always-$(CONFIG_BUILD_BIN2C) += bin2c hostprogs-always-$(CONFIG_KALLSYMS) += kallsyms hostprogs-always-$(BUILD_C_RECORDMCOUNT) += recordmcount hostprogs-always-$(CONFIG_BUILDTIME_TABLE_SORT) += sorttable hostprogs-always-$(CONFIG_ASN1) += asn1_compiler hostprogs-always-$(CONFIG_MODULE_SIG_FORMAT) += sign-file hostprogs-always-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += extract-cert hostprogs-always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert hostprogs-always-$(CONFIG_SYSTEM_REVOCATION_LIST) += extract-cert

HOSTCFLAGS_sorttable.o = -I$(srctree)/tools/include HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include HOSTLDLIBS_sign-file = -lcrypto HOSTLDLIBS_extract-cert = -lcrypto

ifdef CONFIG_UNWINDER_ORC ifeq ($(ARCH),x86_64) ARCH := x86 endif HOSTCFLAGS_sorttable.o += -I$(srctree)/tools/arch/x86/include HOSTCFLAGS_sorttable.o += -DUNWINDER_ORC_ENABLED HOSTLDLIBS_sorttable = -lpthread endif

The following programs are only built on demand

hostprogs += unifdef

The module linker script is preprocessed on demand

targets += module.lds

subdir-$(CONFIG_GCC_PLUGINS) += gcc-plugins subdir-$(CONFIG_MODVERSIONS) += genksyms subdir-$(CONFIG_SECURITY_SELINUX) += selinux

Let clean descend into subdirs

subdir- += basic dtc gdb kconfig mod

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