1# 2# Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are met: 6# 7# Redistributions of source code must retain the above copyright notice, this 8# list of conditions and the following disclaimer. 9# 10# Redistributions in binary form must reproduce the above copyright notice, 11# this list of conditions and the following disclaimer in the documentation 12# and/or other materials provided with the distribution. 13# 14# Neither the name of ARM nor the names of its contributors may be used 15# to endorse or promote products derived from this software without specific 16# prior written permission. 17# 18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28# POSSIBILITY OF SUCH DAMAGE. 29# 30 31# This file defines the keys and certificates that must be created to establish 32# a Chain of Trust following the TBBR document. These definitions include the 33# command line options passed to the cert_create and fip_create tools. 34# 35# Expected environment: 36# 37# BUILD_PLAT: output directory 38# NEED_BL32: indicates whether BL3-2 is needed by the platform 39# BL2: image filename (optional). Default is IMG_BIN(2) (see macro IMG_BIN) 40# BL30: image filename (optional). Default is IMG_BIN(30) 41# BL31: image filename (optional). Default is IMG_BIN(31) 42# BL32: image filename (optional). Default is IMG_BIN(32) 43# BL33: image filename (optional). Default is IMG_BIN(33) 44# 45# Build options added by this file: 46# 47# KEY_ALG 48# ROT_KEY 49# TRUSTED_WORLD_KEY 50# NON_TRUSTED_WORLD_KEY 51# BL30_KEY 52# BL31_KEY 53# BL32_KEY 54# BL33_KEY 55# 56 57# Certificate generation tool default parameters 58TRUSTED_KEY_CERT := ${BUILD_PLAT}/trusted_key.crt 59 60# Add Trusted Key certificate to the fip_create and cert_create command line options 61$(eval $(call FIP_ADD_PAYLOAD,${TRUSTED_KEY_CERT},--trusted-key-cert)) 62$(eval $(call CERT_ADD_CMD_OPT,${TRUSTED_KEY_CERT},--trusted-key-cert)) 63 64# Add the keys to the cert_create command line options (private keys are NOT 65# packed in the FIP). Developers can use their own keys by specifying the proper 66# build option in the command line when building the Trusted Firmware 67$(if ${KEY_ALG},$(eval $(call CERT_ADD_CMD_OPT,${KEY_ALG},--key-alg))) 68$(if ${ROT_KEY},$(eval $(call CERT_ADD_CMD_OPT,${ROT_KEY},--rot-key))) 69$(if ${TRUSTED_WORLD_KEY},$(eval $(call CERT_ADD_CMD_OPT,${TRUSTED_WORLD_KEY},--trusted-world-key))) 70$(if ${NON_TRUSTED_WORLD_KEY},$(eval $(call CERT_ADD_CMD_OPT,${NON_TRUSTED_WORLD_KEY},--non-trusted-world-key))) 71 72# Add the BL2 CoT (image cert + image) 73$(if ${BL2},$(eval $(call CERT_ADD_CMD_OPT,${BL2},--bl2,true)),\ 74 $(eval $(call CERT_ADD_CMD_OPT,$(call IMG_BIN,2),--bl2,true))) 75$(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl2.crt,--bl2-cert)) 76$(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl2.crt,--bl2-cert)) 77 78# Add the BL30 CoT (key cert + img cert + image) 79ifneq (${BL30},) 80 $(eval $(call CERT_ADD_CMD_OPT,${BL30},--bl30,true)) 81 $(if ${BL30_KEY},$(eval $(call CERT_ADD_CMD_OPT,${BL30_KEY},--bl30-key))) 82 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl30.crt,--bl30-cert)) 83 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl30_key.crt,--bl30-key-cert)) 84 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl30.crt,--bl30-cert)) 85 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl30_key.crt,--bl30-key-cert)) 86endif 87 88# Add the BL31 CoT (key cert + img cert + image) 89$(if ${BL31},$(eval $(call CERT_ADD_CMD_OPT,${BL31},--bl31,true)),\ 90 $(eval $(call CERT_ADD_CMD_OPT,$(call IMG_BIN,31),--bl31,true))) 91$(if ${BL31_KEY},$(eval $(call CERT_ADD_CMD_OPT,${BL31_KEY},--bl31-key))) 92$(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl31.crt,--bl31-cert)) 93$(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl31_key.crt,--bl31-key-cert)) 94$(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl31.crt,--bl31-cert)) 95$(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl31_key.crt,--bl31-key-cert)) 96 97# Add the BL32 CoT (key cert + img cert + image) 98ifeq (${NEED_BL32},yes) 99 $(if ${BL32},$(eval $(call CERT_ADD_CMD_OPT,${BL32},--bl32,true)),\ 100 $(if ${BL32_SOURCES},$(eval $(call CERT_ADD_CMD_OPT,$(call IMG_BIN,32),--bl32,true)))) 101 $(if ${BL32_KEY},$(eval $(call CERT_ADD_CMD_OPT,${BL32_KEY},--bl32-key))) 102 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl32.crt,--bl32-cert)) 103 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl32_key.crt,--bl32-key-cert)) 104 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl32.crt,--bl32-cert)) 105 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl32_key.crt,--bl32-key-cert)) 106endif 107 108# Add the BL33 CoT (key cert + img cert + image) 109ifneq (${BL33},) 110 $(eval $(call CERT_ADD_CMD_OPT,${BL33},--bl33,true)) 111 $(if ${BL33_KEY},$(eval $(call CERT_ADD_CMD_OPT,${BL33_KEY},--bl33-key))) 112 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl33.crt,--bl33-cert)) 113 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/bl33_key.crt,--bl33-key-cert)) 114 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl33.crt,--bl33-cert)) 115 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/bl33_key.crt,--bl33-key-cert)) 116endif 117