# SPDX-License-Identifier: GPL-2.0## Makefile for the linux kernel signature checking certificates.# obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.oobj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.oobj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.oifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),) $(obj)/blacklist_hashes.o: $(obj)/blacklist_hash_listCFLAGS_blacklist_hashes.o := -I $(obj) quiet_cmd_check_and_copy_blacklist_hash_list = GEN     $@      cmd_check_and_copy_blacklist_hash_list = \	$(AWK) -f $(srctree)/scripts/check-blacklist-hashes.awk $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) >&2; \	cat $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) > $@ $(obj)/blacklist_hash_list: $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) FORCE	$(call if_changed,check_and_copy_blacklist_hash_list)obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.oelseobj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_nohashes.oendiftargets += blacklist_hash_list quiet_cmd_extract_certs  = CERT    $@      cmd_extract_certs  = $(obj)/extract-cert $(extract-cert-in) $@extract-cert-in = $(or $(filter-out $(obj)/extract-cert, $(real-prereqs)),"") $(obj)/system_certificates.o: $(obj)/x509_certificate_list $(obj)/x509_certificate_list: $(CONFIG_SYSTEM_TRUSTED_KEYS) $(obj)/extract-cert FORCE	$(call if_changed,extract_certs) targets += x509_certificate_list # If module signing is requested, say by allyesconfig, but a key has not been# supplied, then one will need to be generated to make sure the build does not# fail and that the kernel may be used afterwards.## We do it this way rather than having a boolean option for enabling an# external private key, because 'make randconfig' might enable such a# boolean option and we unfortunately can't make it depend on !RANDCONFIG.ifeq ($(CONFIG_MODULE_SIG_KEY),certs/signing_key.pem) keytype-$(CONFIG_MODULE_SIG_KEY_TYPE_ECDSA) := -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 quiet_cmd_gen_key = GENKEY  $@      cmd_gen_key = openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \		-batch -x509 -config $< \		-outform PEM -out $@ -keyout $@ $(keytype-y) 2>&1 $(obj)/signing_key.pem: $(obj)/x509.genkey FORCE	$(call if_changed,gen_key) targets += signing_key.pem quiet_cmd_copy_x509_config = COPY    $@      cmd_copy_x509_config = cat $(srctree)/$(src)/default_x509.genkey > $@ # You can provide your own config file. If not present, copy the default one.$(obj)/x509.genkey:	$(call cmd,copy_x509_config) endif # CONFIG_MODULE_SIG_KEY $(obj)/system_certificates.o: $(obj)/signing_key.x509 PKCS11_URI := $(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY))ifdef PKCS11_URI$(obj)/signing_key.x509: extract-cert-in := $(PKCS11_URI)endif $(obj)/signing_key.x509: $(filter-out $(PKCS11_URI),$(CONFIG_MODULE_SIG_KEY)) $(obj)/extract-cert FORCE	$(call if_changed,extract_certs) targets += signing_key.x509 $(obj)/revocation_certificates.o: $(obj)/x509_revocation_list $(obj)/x509_revocation_list: $(CONFIG_SYSTEM_REVOCATION_KEYS) $(obj)/extract-cert FORCE	$(call if_changed,extract_certs) targets += x509_revocation_list hostprogs := extract-cert HOSTCFLAGS_extract-cert.o = $(shell $(HOSTPKG_CONFIG) --cflags libcrypto 2> /dev/null)HOSTLDLIBS_extract-cert = $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)