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Commit 770f2b98 authored by David Woodhouse's avatar David Woodhouse Committed by David Howells
Browse files

modsign: Use extract-cert to process CONFIG_SYSTEM_TRUSTED_KEYS 



Fix up the dependencies somewhat too, while we're at it.

Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
parent 84706caa

kernel/Makefile

+12 −13
Original line number Diff line number Diff line
@@ -166,23 +166,22 @@ endef 
#

###############################################################################





ifeq ($(CONFIG_SYSTEM_TRUSTED_KEYRING),y)



$(eval $(call config_filename,SYSTEM_TRUSTED_KEYS))



SIGNING_X509-$(CONFIG_MODULE_SIG) += signing_key.x509



kernel/system_certificates.o: $(obj)/x509_certificate_list

# GCC doesn't include .incbin files in -MD generated dependencies (PR#66871)

$(obj)/system_certificates.o: $(obj)/x509_certificate_list



quiet_cmd_x509certs  = CERTS   $(SIGNING_X509-y) $(patsubst "%",%,$(2))

      cmd_x509certs  = ( cat $(SIGNING_X509-y) /dev/null; \

			 awk '/-----BEGIN CERTIFICATE-----/{flag=1;next}/-----END CERTIFICATE-----/{flag=0}flag' $(2) /dev/null | base64 -d ) > $@ || ( rm $@; exit 1)

# Cope with signing_key.x509 existing in $(srctree) not $(objtree)

AFLAGS_system_certificates.o := -I$(srctree)



targets += $(obj)/x509_certificate_list

$(obj)/x509_certificate_list: $(SIGNING_X509-y) include/config/system/trusted/keys.h $(wildcard include/config/module/sig.h) $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME)

	$(call if_changed,x509certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS))

quiet_cmd_extract_certs  = EXTRACT_CERTS   $(patsubst "%",%,$(2))

      cmd_extract_certs  = scripts/extract-cert $(2) $@ || ( rm $@; exit 1)



targets += x509_certificate_list

$(obj)/x509_certificate_list: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME) FORCE

	$(call if_changed,extract_certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS))

endif



clean-files := x509_certificate_list .x509.list
@@ -248,9 +247,9 @@ ifeq ($(patsubst pkcs11:%,%,$(firstword $(MODULE_SIG_KEY_FILENAME))),$(firstword 
X509_DEP := $(MODULE_SIG_KEY_SRCPREFIX)$(MODULE_SIG_KEY_FILENAME)

endif



quiet_cmd_extract_der = SIGNING_CERT $(patsubst "%",%,$(2))

      cmd_extract_der = scripts/extract-cert $(2) signing_key.x509

# GCC PR#66871 again.

$(obj)/system_certificates.o: signing_key.x509



signing_key.x509: scripts/extract-cert include/config/module/sig/key.h $(X509_DEP)

	$(call cmd,extract_der,$(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY))

	$(call cmd,extract_certs,$(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY))

endif

kernel/system_certificates.S

+3 −0
Original line number Diff line number Diff line
@@ -7,6 +7,9 @@ 
	.globl VMLINUX_SYMBOL(system_certificate_list)

VMLINUX_SYMBOL(system_certificate_list):

__cert_list_start:

#ifdef CONFIG_MODULE_SIG

	.incbin "signing_key.x509"

#endif

	.incbin "kernel/x509_certificate_list"

__cert_list_end:

scripts/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -16,7 +16,8 @@ hostprogs-$(CONFIG_VT) += conmakehash 
hostprogs-$(BUILD_C_RECORDMCOUNT) += recordmcount

hostprogs-$(CONFIG_BUILDTIME_EXTABLE_SORT) += sortextable

hostprogs-$(CONFIG_ASN1)	 += asn1_compiler

hostprogs-$(CONFIG_MODULE_SIG)	 += sign-file extract-cert

hostprogs-$(CONFIG_MODULE_SIG)	 += sign-file

hostprogs-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += extract-cert



HOSTCFLAGS_sortextable.o = -I$(srctree)/tools/include

HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include