Commit | Line | Data |
---|---|---|
b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
cfc411e7 DH |
2 | # |
3 | # Makefile for the linux kernel signature checking certificates. | |
4 | # | |
5 | ||
2565ca7f | 6 | obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o common.o |
d1f04410 ES |
7 | obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o common.o |
8 | obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o | |
129ab0d2 | 9 | ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),) |
addf4663 MS |
10 | quiet_cmd_check_blacklist_hashes = CHECK $(patsubst "%",%,$(2)) |
11 | cmd_check_blacklist_hashes = $(AWK) -f $(srctree)/scripts/check-blacklist-hashes.awk $(2); touch $@ | |
12 | ||
13 | $(eval $(call config_filename,SYSTEM_BLACKLIST_HASH_LIST)) | |
14 | ||
15 | $(obj)/blacklist_hashes.o: $(obj)/blacklist_hashes_checked | |
16 | ||
17 | CFLAGS_blacklist_hashes.o += -I$(srctree) | |
18 | ||
19 | targets += blacklist_hashes_checked | |
20 | $(obj)/blacklist_hashes_checked: $(SYSTEM_BLACKLIST_HASH_LIST_SRCPREFIX)$(SYSTEM_BLACKLIST_HASH_LIST_FILENAME) scripts/check-blacklist-hashes.awk FORCE | |
21 | $(call if_changed,check_blacklist_hashes,$(SYSTEM_BLACKLIST_HASH_LIST_SRCPREFIX)$(CONFIG_SYSTEM_BLACKLIST_HASH_LIST)) | |
734114f8 DH |
22 | obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.o |
23 | else | |
24 | obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_nohashes.o | |
25 | endif | |
cfc411e7 | 26 | |
1c4bd9f7 | 27 | quiet_cmd_extract_certs = CERT $@ |
f44b645f MY |
28 | cmd_extract_certs = $(obj)/extract-cert $(extract-cert-in) $@ |
29 | extract-cert-in = $(or $(filter-out $(obj)/extract-cert, $(real-prereqs)),"") | |
1c4bd9f7 | 30 | |
cfc411e7 DH |
31 | $(obj)/system_certificates.o: $(obj)/x509_certificate_list |
32 | ||
340a0253 | 33 | $(obj)/x509_certificate_list: $(CONFIG_SYSTEM_TRUSTED_KEYS) $(obj)/extract-cert FORCE |
f44b645f | 34 | $(call if_changed,extract_certs) |
cfc411e7 | 35 | |
addf4663 | 36 | targets += x509_certificate_list blacklist_hashes_checked |
cfc411e7 | 37 | |
cfc411e7 DH |
38 | # If module signing is requested, say by allyesconfig, but a key has not been |
39 | # supplied, then one will need to be generated to make sure the build does not | |
40 | # fail and that the kernel may be used afterwards. | |
41 | # | |
cfc411e7 DH |
42 | # We do it this way rather than having a boolean option for enabling an |
43 | # external private key, because 'make randconfig' might enable such a | |
44 | # boolean option and we unfortunately can't make it depend on !RANDCONFIG. | |
129ab0d2 | 45 | ifeq ($(CONFIG_MODULE_SIG_KEY),certs/signing_key.pem) |
ea35e0d5 | 46 | |
e06a61a8 | 47 | keytype-$(CONFIG_MODULE_SIG_KEY_TYPE_ECDSA) := -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 |
ea35e0d5 | 48 | |
54c8b517 MY |
49 | quiet_cmd_gen_key = GENKEY $@ |
50 | cmd_gen_key = openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \ | |
c537e4d0 MY |
51 | -batch -x509 -config $< \ |
52 | -outform PEM -out $@ -keyout $@ $(keytype-y) 2>&1 | |
e06a61a8 MY |
53 | |
54 | $(obj)/signing_key.pem: $(obj)/x509.genkey FORCE | |
55 | $(call if_changed,gen_key) | |
54c8b517 | 56 | |
e06a61a8 | 57 | targets += signing_key.pem |
cfc411e7 | 58 | |
f3a2ba44 MY |
59 | quiet_cmd_copy_x509_config = COPY $@ |
60 | cmd_copy_x509_config = cat $(srctree)/$(src)/default_x509.genkey > $@ | |
61 | ||
62 | # You can provide your own config file. If not present, copy the default one. | |
cfc411e7 | 63 | $(obj)/x509.genkey: |
f3a2ba44 MY |
64 | $(call cmd,copy_x509_config) |
65 | ||
5ccbdbf9 | 66 | endif # CONFIG_MODULE_SIG_KEY |
cfc411e7 | 67 | |
cfc411e7 DH |
68 | $(obj)/system_certificates.o: $(obj)/signing_key.x509 |
69 | ||
f44b645f MY |
70 | PKCS11_URI := $(filter pkcs11:%, $(CONFIG_MODULE_SIG_KEY)) |
71 | ifdef PKCS11_URI | |
72 | $(obj)/signing_key.x509: extract-cert-in := $(PKCS11_URI) | |
73 | endif | |
74 | ||
75 | $(obj)/signing_key.x509: $(filter-out $(PKCS11_URI),$(CONFIG_MODULE_SIG_KEY)) $(obj)/extract-cert FORCE | |
76 | $(call if_changed,extract_certs) | |
d1f04410 | 77 | |
5cca3606 MY |
78 | targets += signing_key.x509 |
79 | ||
d1f04410 ES |
80 | $(obj)/revocation_certificates.o: $(obj)/x509_revocation_list |
81 | ||
340a0253 | 82 | $(obj)/x509_revocation_list: $(CONFIG_SYSTEM_REVOCATION_KEYS) $(obj)/extract-cert FORCE |
f44b645f | 83 | $(call if_changed,extract_certs) |
5cca3606 MY |
84 | |
85 | targets += x509_revocation_list | |
340a0253 MY |
86 | |
87 | hostprogs := extract-cert | |
88 | ||
89 | HOSTCFLAGS_extract-cert.o = $(shell pkg-config --cflags libcrypto 2> /dev/null) | |
90 | HOSTLDLIBS_extract-cert = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto) |