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-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o | |
734114f8 DH |
9 | ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),"") |
10 | obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.o | |
11 | else | |
12 | obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_nohashes.o | |
13 | endif | |
cfc411e7 | 14 | |
1c4bd9f7 MY |
15 | quiet_cmd_extract_certs = CERT $@ |
16 | cmd_extract_certs = scripts/extract-cert $(2) $@ | |
17 | ||
cfc411e7 DH |
18 | ifeq ($(CONFIG_SYSTEM_TRUSTED_KEYRING),y) |
19 | ||
20 | $(eval $(call config_filename,SYSTEM_TRUSTED_KEYS)) | |
21 | ||
22 | # GCC doesn't include .incbin files in -MD generated dependencies (PR#66871) | |
23 | $(obj)/system_certificates.o: $(obj)/x509_certificate_list | |
24 | ||
25 | # Cope with signing_key.x509 existing in $(srctree) not $(objtree) | |
26 | AFLAGS_system_certificates.o := -I$(srctree) | |
27 | ||
cfc411e7 DH |
28 | targets += x509_certificate_list |
29 | $(obj)/x509_certificate_list: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME) FORCE | |
30 | $(call if_changed,extract_certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS)) | |
5ccbdbf9 | 31 | endif # CONFIG_SYSTEM_TRUSTED_KEYRING |
cfc411e7 | 32 | |
d1f04410 | 33 | clean-files := x509_certificate_list .x509.list x509_revocation_list |
cfc411e7 DH |
34 | |
35 | ifeq ($(CONFIG_MODULE_SIG),y) | |
0165f4ca NJ |
36 | SIGN_KEY = y |
37 | endif | |
38 | ||
39 | ifeq ($(CONFIG_IMA_APPRAISE_MODSIG),y) | |
781a5739 | 40 | ifeq ($(CONFIG_MODULES),y) |
0165f4ca NJ |
41 | SIGN_KEY = y |
42 | endif | |
781a5739 | 43 | endif |
0165f4ca NJ |
44 | |
45 | ifdef SIGN_KEY | |
cfc411e7 DH |
46 | ############################################################################### |
47 | # | |
48 | # If module signing is requested, say by allyesconfig, but a key has not been | |
49 | # supplied, then one will need to be generated to make sure the build does not | |
50 | # fail and that the kernel may be used afterwards. | |
51 | # | |
52 | ############################################################################### | |
cfc411e7 DH |
53 | |
54 | # We do it this way rather than having a boolean option for enabling an | |
55 | # external private key, because 'make randconfig' might enable such a | |
56 | # boolean option and we unfortunately can't make it depend on !RANDCONFIG. | |
57 | ifeq ($(CONFIG_MODULE_SIG_KEY),"certs/signing_key.pem") | |
ea35e0d5 | 58 | |
e06a61a8 | 59 | keytype-$(CONFIG_MODULE_SIG_KEY_TYPE_ECDSA) := -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 |
ea35e0d5 | 60 | |
54c8b517 MY |
61 | quiet_cmd_gen_key = GENKEY $@ |
62 | cmd_gen_key = openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \ | |
c537e4d0 MY |
63 | -batch -x509 -config $< \ |
64 | -outform PEM -out $@ -keyout $@ $(keytype-y) 2>&1 | |
e06a61a8 MY |
65 | |
66 | $(obj)/signing_key.pem: $(obj)/x509.genkey FORCE | |
67 | $(call if_changed,gen_key) | |
54c8b517 | 68 | |
e06a61a8 | 69 | targets += signing_key.pem |
cfc411e7 | 70 | |
f3a2ba44 MY |
71 | quiet_cmd_copy_x509_config = COPY $@ |
72 | cmd_copy_x509_config = cat $(srctree)/$(src)/default_x509.genkey > $@ | |
73 | ||
74 | # You can provide your own config file. If not present, copy the default one. | |
cfc411e7 | 75 | $(obj)/x509.genkey: |
f3a2ba44 MY |
76 | $(call cmd,copy_x509_config) |
77 | ||
5ccbdbf9 | 78 | endif # CONFIG_MODULE_SIG_KEY |
cfc411e7 DH |
79 | |
80 | $(eval $(call config_filename,MODULE_SIG_KEY)) | |
81 | ||
82 | # If CONFIG_MODULE_SIG_KEY isn't a PKCS#11 URI, depend on it | |
83 | ifeq ($(patsubst pkcs11:%,%,$(firstword $(MODULE_SIG_KEY_FILENAME))),$(firstword $(MODULE_SIG_KEY_FILENAME))) | |
84 | X509_DEP := $(MODULE_SIG_KEY_SRCPREFIX)$(MODULE_SIG_KEY_FILENAME) | |
85 | endif | |
86 | ||
87 | # GCC PR#66871 again. | |
88 | $(obj)/system_certificates.o: $(obj)/signing_key.x509 | |
89 | ||
62172c81 DW |
90 | targets += signing_key.x509 |
91 | $(obj)/signing_key.x509: scripts/extract-cert $(X509_DEP) FORCE | |
92 | $(call if_changed,extract_certs,$(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY)) | |
5ccbdbf9 | 93 | endif # CONFIG_MODULE_SIG |
d1f04410 ES |
94 | |
95 | ifeq ($(CONFIG_SYSTEM_REVOCATION_LIST),y) | |
96 | ||
97 | $(eval $(call config_filename,SYSTEM_REVOCATION_KEYS)) | |
98 | ||
99 | $(obj)/revocation_certificates.o: $(obj)/x509_revocation_list | |
100 | ||
d1f04410 ES |
101 | targets += x509_revocation_list |
102 | $(obj)/x509_revocation_list: scripts/extract-cert $(SYSTEM_REVOCATION_KEYS_SRCPREFIX)$(SYSTEM_REVOCATION_KEYS_FILENAME) FORCE | |
103 | $(call if_changed,extract_certs,$(SYSTEM_REVOCATION_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_REVOCATION_KEYS)) | |
104 | endif |