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 BL32 is needed by the platform 39# BL2: image filename (optional). Default is IMG_BIN(2) (see macro IMG_BIN) 40# SCP_BL2: 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# SCP_BL2_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 59FWU_CERT := ${BUILD_PLAT}/fwu_cert.crt 60 61# Add Trusted Key certificate to the fip_create and cert_create command line options 62$(eval $(call FIP_ADD_PAYLOAD,${TRUSTED_KEY_CERT},--trusted-key-cert)) 63$(eval $(call CERT_ADD_CMD_OPT,${TRUSTED_KEY_CERT},--trusted-key-cert)) 64 65# Add fwu certificate to the fip_create and cert_create command line options 66$(eval $(call FWU_FIP_ADD_PAYLOAD,${FWU_CERT},--fwu-cert)) 67$(eval $(call FWU_CERT_ADD_CMD_OPT,${FWU_CERT},--fwu-cert)) 68 69# Add the keys to the cert_create command line options (private keys are NOT 70# packed in the FIP). Developers can use their own keys by specifying the proper 71# build option in the command line when building the Trusted Firmware 72$(if ${KEY_ALG},$(eval $(call CERT_ADD_CMD_OPT,${KEY_ALG},--key-alg))) 73$(if ${ROT_KEY},$(eval $(call CERT_ADD_CMD_OPT,${ROT_KEY},--rot-key))) 74$(if ${ROT_KEY},$(eval $(call FWU_CERT_ADD_CMD_OPT,${ROT_KEY},--rot-key))) 75$(if ${TRUSTED_WORLD_KEY},$(eval $(call CERT_ADD_CMD_OPT,${TRUSTED_WORLD_KEY},--trusted-world-key))) 76$(if ${NON_TRUSTED_WORLD_KEY},$(eval $(call CERT_ADD_CMD_OPT,${NON_TRUSTED_WORLD_KEY},--non-trusted-world-key))) 77 78# Add the BL2 CoT (image cert + image) 79$(if ${BL2},$(eval $(call CERT_ADD_CMD_OPT,${BL2},--tb-fw,true)),\ 80 $(eval $(call CERT_ADD_CMD_OPT,$(call IMG_BIN,2),--tb-fw,true))) 81$(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/tb_fw.crt,--tb-fw-cert)) 82$(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/tb_fw.crt,--tb-fw-cert)) 83 84# Add the SCP_BL2 CoT (key cert + img cert + image) 85ifneq (${SCP_BL2},) 86 $(eval $(call CERT_ADD_CMD_OPT,${SCP_BL2},--scp-fw,true)) 87 $(if ${SCP_BL2_KEY},$(eval $(call CERT_ADD_CMD_OPT,${SCP_BL2_KEY},--scp-fw-key))) 88 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/scp_fw_content.crt,--scp-fw-cert)) 89 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/scp_fw_key.crt,--scp-fw-key-cert)) 90 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/scp_fw_content.crt,--scp-fw-cert)) 91 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/scp_fw_key.crt,--scp-fw-key-cert)) 92endif 93 94# Add the BL31 CoT (key cert + img cert + image) 95$(if ${BL31},$(eval $(call CERT_ADD_CMD_OPT,${BL31},--soc-fw,true)),\ 96 $(eval $(call CERT_ADD_CMD_OPT,$(call IMG_BIN,31),--soc-fw,true))) 97$(if ${BL31_KEY},$(eval $(call CERT_ADD_CMD_OPT,${BL31_KEY},--soc-fw-key))) 98$(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/soc_fw_content.crt,--soc-fw-cert)) 99$(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/soc_fw_key.crt,--soc-fw-key-cert)) 100$(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/soc_fw_content.crt,--soc-fw-cert)) 101$(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/soc_fw_key.crt,--soc-fw-key-cert)) 102 103# Add the BL32 CoT (key cert + img cert + image) 104ifeq (${NEED_BL32},yes) 105 $(if ${BL32},$(eval $(call CERT_ADD_CMD_OPT,${BL32},--tos-fw,true)),\ 106 $(if ${BL32_SOURCES},$(eval $(call CERT_ADD_CMD_OPT,$(call IMG_BIN,32),--tos-fw,true)))) 107 $(if ${BL32_KEY},$(eval $(call CERT_ADD_CMD_OPT,${BL32_KEY},--tos-fw-key))) 108 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/tos_fw_content.crt,--tos-fw-cert)) 109 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/tos_fw_key.crt,--tos-fw-key-cert)) 110 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/tos_fw_content.crt,--tos-fw-cert)) 111 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/tos_fw_key.crt,--tos-fw-key-cert)) 112endif 113 114# Add the BL33 CoT (key cert + img cert + image) 115ifneq (${BL33},) 116 $(eval $(call CERT_ADD_CMD_OPT,${BL33},--nt-fw,true)) 117 $(if ${BL33_KEY},$(eval $(call CERT_ADD_CMD_OPT,${BL33_KEY},--nt-fw-key))) 118 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/nt_fw_content.crt,--nt-fw-cert)) 119 $(eval $(call CERT_ADD_CMD_OPT,${BUILD_PLAT}/nt_fw_key.crt,--nt-fw-key-cert)) 120 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/nt_fw_content.crt,--nt-fw-cert)) 121 $(eval $(call FIP_ADD_PAYLOAD,${BUILD_PLAT}/nt_fw_key.crt,--nt-fw-key-cert)) 122endif 123 124# Add the BL2U image 125$(if ${BL2U},$(eval $(call FWU_CERT_ADD_CMD_OPT,${BL2U},--ap-fwu-cfg,true)),\ 126 $(eval $(call FWU_CERT_ADD_CMD_OPT,$(call IMG_BIN,2u),--ap-fwu-cfg,true))) 127 128# Add the SCP_BL2U image 129ifneq (${SCP_BL2U},) 130 $(eval $(call FWU_CERT_ADD_CMD_OPT,${SCP_BL2U},--scp-fwu-cfg,true)) 131endif 132 133# Add the NS_BL2U image 134ifneq (${NS_BL2U},) 135 $(eval $(call FWU_CERT_ADD_CMD_OPT,${NS_BL2U},--fwu,true)) 136endif 137