/* * Copyright (c) 2022-2023, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include #include #include #include #include /* * Allocate static buffers to store the authentication parameters extracted from * the certificates. */ static unsigned char fw_config_hash_buf[HASH_DER_LEN]; static unsigned char tb_fw_hash_buf[HASH_DER_LEN]; static unsigned char tb_fw_config_hash_buf[HASH_DER_LEN]; static unsigned char hw_config_hash_buf[HASH_DER_LEN]; static unsigned char soc_fw_hash_buf[HASH_DER_LEN]; static unsigned char soc_fw_config_hash_buf[HASH_DER_LEN]; static unsigned char rmm_hash_buf[HASH_DER_LEN]; #ifdef IMAGE_BL2 static unsigned char nt_world_bl_hash_buf[HASH_DER_LEN]; static unsigned char tos_fw_hash_buf[HASH_DER_LEN]; static unsigned char tos_fw_config_hash_buf[HASH_DER_LEN]; static unsigned char nt_fw_config_hash_buf[HASH_DER_LEN]; #if defined(SPD_spmd) static unsigned char sp_pkg_hash_buf[MAX_SP_IDS][HASH_DER_LEN]; #endif /* SPD_spmd */ static unsigned char core_swd_pk_buf[PK_DER_LEN]; static unsigned char plat_pk_buf[PK_DER_LEN]; #endif /* IMAGE_BL2 */ /* * Parameter type descriptors. */ static auth_param_type_desc_t cca_nv_ctr = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_NV_CTR, CCA_FW_NVCOUNTER_OID); static auth_param_type_desc_t subject_pk = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_PUB_KEY, 0); static auth_param_type_desc_t sig = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_SIG, 0); static auth_param_type_desc_t sig_alg = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_SIG_ALG, 0); static auth_param_type_desc_t raw_data = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_RAW_DATA, 0); static auth_param_type_desc_t tb_fw_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, TRUSTED_BOOT_FW_HASH_OID); static auth_param_type_desc_t tb_fw_config_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, TRUSTED_BOOT_FW_CONFIG_HASH_OID); static auth_param_type_desc_t hw_config_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, HW_CONFIG_HASH_OID); static auth_param_type_desc_t fw_config_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, FW_CONFIG_HASH_OID); static auth_param_type_desc_t soc_fw_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SOC_AP_FW_HASH_OID); static auth_param_type_desc_t soc_fw_config_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SOC_FW_CONFIG_HASH_OID); static auth_param_type_desc_t rmm_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, RMM_HASH_OID); #ifdef IMAGE_BL2 static auth_param_type_desc_t trusted_nv_ctr = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_NV_CTR, TRUSTED_FW_NVCOUNTER_OID); static auth_param_type_desc_t non_trusted_nv_ctr = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_NV_CTR, NON_TRUSTED_FW_NVCOUNTER_OID); static auth_param_type_desc_t prot_pk = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_PUB_KEY, PROT_PK_OID); static auth_param_type_desc_t swd_rot_pk = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_PUB_KEY, SWD_ROT_PK_OID); static auth_param_type_desc_t core_swd_pk = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_PUB_KEY, CORE_SWD_PK_OID); static auth_param_type_desc_t plat_pk = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_PUB_KEY, PLAT_PK_OID); static auth_param_type_desc_t tos_fw_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, TRUSTED_OS_FW_HASH_OID); static auth_param_type_desc_t tos_fw_config_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, TRUSTED_OS_FW_CONFIG_HASH_OID); static auth_param_type_desc_t nt_world_bl_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, NON_TRUSTED_WORLD_BOOTLOADER_HASH_OID); static auth_param_type_desc_t nt_fw_config_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, NON_TRUSTED_FW_CONFIG_HASH_OID); #if defined(SPD_spmd) static auth_param_type_desc_t sp_pkg1_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG1_HASH_OID); static auth_param_type_desc_t sp_pkg2_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG2_HASH_OID); static auth_param_type_desc_t sp_pkg3_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG3_HASH_OID); static auth_param_type_desc_t sp_pkg4_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG4_HASH_OID); static auth_param_type_desc_t sp_pkg5_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG5_HASH_OID); static auth_param_type_desc_t sp_pkg6_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG6_HASH_OID); static auth_param_type_desc_t sp_pkg7_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG7_HASH_OID); static auth_param_type_desc_t sp_pkg8_hash = AUTH_PARAM_TYPE_DESC( AUTH_PARAM_HASH, SP_PKG8_HASH_OID); #endif /* SPD_spmd */ #endif /* IMAGE_BL2 */ /* CCA Content Certificate */ static const auth_img_desc_t cca_content_cert = { .img_id = CCA_CONTENT_CERT_ID, .img_type = IMG_CERT, .parent = NULL, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_SIG, .param.sig = { .pk = &subject_pk, .sig = &sig, .alg = &sig_alg, .data = &raw_data } }, [1] = { .type = AUTH_METHOD_NV_CTR, .param.nv_ctr = { .cert_nv_ctr = &cca_nv_ctr, .plat_nv_ctr = &cca_nv_ctr } } }, .authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) { [0] = { .type_desc = &tb_fw_hash, .data = { .ptr = (void *)tb_fw_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [1] = { .type_desc = &tb_fw_config_hash, .data = { .ptr = (void *)tb_fw_config_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [2] = { .type_desc = &fw_config_hash, .data = { .ptr = (void *)fw_config_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [3] = { .type_desc = &hw_config_hash, .data = { .ptr = (void *)hw_config_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [4] = { .type_desc = &soc_fw_hash, .data = { .ptr = (void *)soc_fw_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [5] = { .type_desc = &soc_fw_config_hash, .data = { .ptr = (void *)soc_fw_config_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [6] = { .type_desc = &rmm_hash, .data = { .ptr = (void *)rmm_hash_buf, .len = (unsigned int)HASH_DER_LEN } } } }; #ifdef IMAGE_BL1 static const auth_img_desc_t bl2_image = { .img_id = BL2_IMAGE_ID, .img_type = IMG_RAW, .parent = &cca_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &tb_fw_hash } } } }; static const auth_img_desc_t tb_fw_config = { .img_id = TB_FW_CONFIG_ID, .img_type = IMG_RAW, .parent = &cca_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &tb_fw_config_hash } } } }; static const auth_img_desc_t fw_config = { .img_id = FW_CONFIG_ID, .img_type = IMG_RAW, .parent = &cca_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &fw_config_hash } } } }; #endif /* IMAGE_BL1 */ #ifdef IMAGE_BL2 /* HW Config */ static const auth_img_desc_t hw_config = { .img_id = HW_CONFIG_ID, .img_type = IMG_RAW, .parent = &cca_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &hw_config_hash } } } }; /* BL31 */ static const auth_img_desc_t bl31_image = { .img_id = BL31_IMAGE_ID, .img_type = IMG_RAW, .parent = &cca_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &soc_fw_hash } } } }; /* BL31 Config */ static const auth_img_desc_t soc_fw_config = { .img_id = SOC_FW_CONFIG_ID, .img_type = IMG_RAW, .parent = &cca_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &soc_fw_config_hash } } } }; /* RMM */ static const auth_img_desc_t rmm_image = { .img_id = RMM_IMAGE_ID, .img_type = IMG_RAW, .parent = &cca_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &rmm_hash } } } }; /* Core SWD Key Certificate */ static const auth_img_desc_t core_swd_key_cert = { .img_id = CORE_SWD_KEY_CERT_ID, .img_type = IMG_CERT, .parent = NULL, /* SWD ROOT CERT */ .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_SIG, .param.sig = { .pk = &swd_rot_pk, .sig = &sig, .alg = &sig_alg, .data = &raw_data } }, [1] = { .type = AUTH_METHOD_NV_CTR, .param.nv_ctr = { .cert_nv_ctr = &trusted_nv_ctr, .plat_nv_ctr = &trusted_nv_ctr } } }, .authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) { [0] = { .type_desc = &core_swd_pk, .data = { .ptr = (void *)core_swd_pk_buf, .len = (unsigned int)PK_DER_LEN } } } }; /* SPMC Content Certificate */ static const auth_img_desc_t trusted_os_fw_content_cert = { .img_id = TRUSTED_OS_FW_CONTENT_CERT_ID, .img_type = IMG_CERT, .parent = &core_swd_key_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_SIG, .param.sig = { .pk = &core_swd_pk, .sig = &sig, .alg = &sig_alg, .data = &raw_data } }, [1] = { .type = AUTH_METHOD_NV_CTR, .param.nv_ctr = { .cert_nv_ctr = &trusted_nv_ctr, .plat_nv_ctr = &trusted_nv_ctr } } }, .authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) { [0] = { .type_desc = &tos_fw_hash, .data = { .ptr = (void *)tos_fw_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [1] = { .type_desc = &tos_fw_config_hash, .data = { .ptr = (void *)tos_fw_config_hash_buf, .len = (unsigned int)HASH_DER_LEN } } } }; /* SPMC */ static const auth_img_desc_t bl32_image = { .img_id = BL32_IMAGE_ID, .img_type = IMG_RAW, .parent = &trusted_os_fw_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &tos_fw_hash } } } }; /* SPM Config */ static const auth_img_desc_t tos_fw_config = { .img_id = TOS_FW_CONFIG_ID, .img_type = IMG_RAW, .parent = &trusted_os_fw_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &tos_fw_config_hash } } } }; /* Platform Key Certificate */ static const auth_img_desc_t plat_key_cert = { .img_id = PLAT_KEY_CERT_ID, .img_type = IMG_CERT, .parent = NULL, /* PLATFORM ROOT CERT */ .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_SIG, .param.sig = { .pk = &prot_pk, .sig = &sig, .alg = &sig_alg, .data = &raw_data } }, [1] = { .type = AUTH_METHOD_NV_CTR, .param.nv_ctr = { .cert_nv_ctr = &non_trusted_nv_ctr, .plat_nv_ctr = &non_trusted_nv_ctr } } }, .authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) { [0] = { .type_desc = &plat_pk, .data = { .ptr = (void *)plat_pk_buf, .len = (unsigned int)PK_DER_LEN } } } }; /* Non-Trusted Firmware */ static const auth_img_desc_t non_trusted_fw_content_cert = { .img_id = NON_TRUSTED_FW_CONTENT_CERT_ID, .img_type = IMG_CERT, .parent = &plat_key_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_SIG, .param.sig = { .pk = &plat_pk, .sig = &sig, .alg = &sig_alg, .data = &raw_data } }, [1] = { .type = AUTH_METHOD_NV_CTR, .param.nv_ctr = { .cert_nv_ctr = &non_trusted_nv_ctr, .plat_nv_ctr = &non_trusted_nv_ctr } } }, .authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) { [0] = { .type_desc = &nt_world_bl_hash, .data = { .ptr = (void *)nt_world_bl_hash_buf, .len = (unsigned int)HASH_DER_LEN } }, [1] = { .type_desc = &nt_fw_config_hash, .data = { .ptr = (void *)nt_fw_config_hash_buf, .len = (unsigned int)HASH_DER_LEN } } } }; static const auth_img_desc_t bl33_image = { .img_id = BL33_IMAGE_ID, .img_type = IMG_RAW, .parent = &non_trusted_fw_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &nt_world_bl_hash } } } }; /* NT FW Config */ static const auth_img_desc_t nt_fw_config = { .img_id = NT_FW_CONFIG_ID, .img_type = IMG_RAW, .parent = &non_trusted_fw_content_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_HASH, .param.hash = { .data = &raw_data, .hash = &nt_fw_config_hash } } } }; /* * Secure Partitions */ #if defined(SPD_spmd) static const auth_img_desc_t sip_sp_content_cert = { .img_id = SIP_SP_CONTENT_CERT_ID, .img_type = IMG_CERT, .parent = &core_swd_key_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_SIG, .param.sig = { .pk = &core_swd_pk, .sig = &sig, .alg = &sig_alg, .data = &raw_data } }, [1] = { .type = AUTH_METHOD_NV_CTR, .param.nv_ctr = { .cert_nv_ctr = &trusted_nv_ctr, .plat_nv_ctr = &trusted_nv_ctr } } }, .authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) { [0] = { .type_desc = &sp_pkg1_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[0], .len = (unsigned int)HASH_DER_LEN } }, [1] = { .type_desc = &sp_pkg2_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[1], .len = (unsigned int)HASH_DER_LEN } }, [2] = { .type_desc = &sp_pkg3_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[2], .len = (unsigned int)HASH_DER_LEN } }, [3] = { .type_desc = &sp_pkg4_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[3], .len = (unsigned int)HASH_DER_LEN } } } }; DEFINE_SIP_SP_PKG(1); DEFINE_SIP_SP_PKG(2); DEFINE_SIP_SP_PKG(3); DEFINE_SIP_SP_PKG(4); static const auth_img_desc_t plat_sp_content_cert = { .img_id = PLAT_SP_CONTENT_CERT_ID, .img_type = IMG_CERT, .parent = &plat_key_cert, .img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { [0] = { .type = AUTH_METHOD_SIG, .param.sig = { .pk = &plat_pk, .sig = &sig, .alg = &sig_alg, .data = &raw_data } }, [1] = { .type = AUTH_METHOD_NV_CTR, .param.nv_ctr = { .cert_nv_ctr = &non_trusted_nv_ctr, .plat_nv_ctr = &non_trusted_nv_ctr } } }, .authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) { [0] = { .type_desc = &sp_pkg5_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[4], .len = (unsigned int)HASH_DER_LEN } }, [1] = { .type_desc = &sp_pkg6_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[5], .len = (unsigned int)HASH_DER_LEN } }, [2] = { .type_desc = &sp_pkg7_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[6], .len = (unsigned int)HASH_DER_LEN } }, [3] = { .type_desc = &sp_pkg8_hash, .data = { .ptr = (void *)sp_pkg_hash_buf[7], .len = (unsigned int)HASH_DER_LEN } } } }; DEFINE_PLAT_SP_PKG(5); DEFINE_PLAT_SP_PKG(6); DEFINE_PLAT_SP_PKG(7); DEFINE_PLAT_SP_PKG(8); #endif /* SPD_spmd */ #endif /* IMAGE_BL2 */ /* * Chain of trust definition */ #ifdef IMAGE_BL1 static const auth_img_desc_t * const cot_desc[] = { [CCA_CONTENT_CERT_ID] = &cca_content_cert, [BL2_IMAGE_ID] = &bl2_image, [TB_FW_CONFIG_ID] = &tb_fw_config, [FW_CONFIG_ID] = &fw_config, }; #else /* IMAGE_BL2 */ static const auth_img_desc_t * const cot_desc[] = { [CCA_CONTENT_CERT_ID] = &cca_content_cert, [HW_CONFIG_ID] = &hw_config, [BL31_IMAGE_ID] = &bl31_image, [SOC_FW_CONFIG_ID] = &soc_fw_config, [RMM_IMAGE_ID] = &rmm_image, [CORE_SWD_KEY_CERT_ID] = &core_swd_key_cert, [TRUSTED_OS_FW_CONTENT_CERT_ID] = &trusted_os_fw_content_cert, [BL32_IMAGE_ID] = &bl32_image, [TOS_FW_CONFIG_ID] = &tos_fw_config, [PLAT_KEY_CERT_ID] = &plat_key_cert, [NON_TRUSTED_FW_CONTENT_CERT_ID] = &non_trusted_fw_content_cert, [BL33_IMAGE_ID] = &bl33_image, [NT_FW_CONFIG_ID] = &nt_fw_config, #if defined(SPD_spmd) [SIP_SP_CONTENT_CERT_ID] = &sip_sp_content_cert, [PLAT_SP_CONTENT_CERT_ID] = &plat_sp_content_cert, [SP_PKG1_ID] = &sp_pkg1, [SP_PKG2_ID] = &sp_pkg2, [SP_PKG3_ID] = &sp_pkg3, [SP_PKG4_ID] = &sp_pkg4, [SP_PKG5_ID] = &sp_pkg5, [SP_PKG6_ID] = &sp_pkg6, [SP_PKG7_ID] = &sp_pkg7, [SP_PKG8_ID] = &sp_pkg8, #endif }; #endif /* IMAGE_BL1 */ /* Register the CoT in the authentication module */ REGISTER_COT(cot_desc);