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300e6d4116
Couple error handling helpers are repeated in both tools, so move them to a common header. Signed-off-by: Jan Stancek <jstancek@redhat.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Tested-by: R Nageswara Sastry <rnsastry@linux.ibm.com> Reviewed-by: Neal Gompa <neal@gompa.dev> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
89 lines
3.2 KiB
Makefile
89 lines
3.2 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the linux kernel signature checking certificates.
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#
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obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o
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obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o blacklist_hashes.o
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obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o
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$(obj)/blacklist_hashes.o: $(obj)/blacklist_hash_list
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CFLAGS_blacklist_hashes.o := -I $(obj)
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quiet_cmd_check_and_copy_blacklist_hash_list = GEN $@
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cmd_check_and_copy_blacklist_hash_list = \
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$(if $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST), \
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$(AWK) -f $(src)/check-blacklist-hashes.awk $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) >&2; \
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{ cat $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST); echo $(comma) NULL; } > $@, \
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echo NULL > $@)
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$(obj)/blacklist_hash_list: $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) FORCE
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$(call if_changed,check_and_copy_blacklist_hash_list)
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targets += blacklist_hash_list
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quiet_cmd_extract_certs = CERT $@
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cmd_extract_certs = $(obj)/extract-cert "$(extract-cert-in)" $@
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extract-cert-in = $(filter-out $(obj)/extract-cert, $(real-prereqs))
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$(obj)/system_certificates.o: $(obj)/x509_certificate_list
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$(obj)/x509_certificate_list: $(CONFIG_SYSTEM_TRUSTED_KEYS) $(obj)/extract-cert FORCE
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$(call if_changed,extract_certs)
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targets += x509_certificate_list
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# If module signing is requested, say by allyesconfig, but a key has not been
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# supplied, then one will need to be generated to make sure the build does not
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# fail and that the kernel may be used afterwards.
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#
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# We do it this way rather than having a boolean option for enabling an
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# external private key, because 'make randconfig' might enable such a
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# boolean option and we unfortunately can't make it depend on !RANDCONFIG.
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ifeq ($(CONFIG_MODULE_SIG_KEY),certs/signing_key.pem)
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keytype-$(CONFIG_MODULE_SIG_KEY_TYPE_ECDSA) := -newkey ec -pkeyopt ec_paramgen_curve:secp384r1
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quiet_cmd_gen_key = GENKEY $@
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cmd_gen_key = openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \
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-batch -x509 -config $< \
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-outform PEM -out $@ -keyout $@ $(keytype-y) 2>&1
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$(obj)/signing_key.pem: $(obj)/x509.genkey FORCE
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$(call if_changed,gen_key)
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targets += signing_key.pem
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quiet_cmd_copy_x509_config = COPY $@
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cmd_copy_x509_config = cat $(src)/default_x509.genkey > $@
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# You can provide your own config file. If not present, copy the default one.
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$(obj)/x509.genkey:
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$(call cmd,copy_x509_config)
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endif # CONFIG_MODULE_SIG_KEY
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$(obj)/system_certificates.o: $(obj)/signing_key.x509
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PKCS11_URI := $(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY))
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ifdef PKCS11_URI
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$(obj)/signing_key.x509: extract-cert-in := $(PKCS11_URI)
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endif
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$(obj)/signing_key.x509: $(filter-out $(PKCS11_URI),$(CONFIG_MODULE_SIG_KEY)) $(obj)/extract-cert FORCE
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$(call if_changed,extract_certs)
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targets += signing_key.x509
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$(obj)/revocation_certificates.o: $(obj)/x509_revocation_list
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$(obj)/x509_revocation_list: $(CONFIG_SYSTEM_REVOCATION_KEYS) $(obj)/extract-cert FORCE
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$(call if_changed,extract_certs)
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targets += x509_revocation_list
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hostprogs := extract-cert
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HOSTCFLAGS_extract-cert.o = $(shell $(HOSTPKG_CONFIG) --cflags libcrypto 2> /dev/null) -I$(srctree)/scripts
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HOSTLDLIBS_extract-cert = $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)
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