Extend libsecureboot(old libve) to obtain trusted certificates from UEFI and implement revocation
UEFI related headers were copied from edk2. A new build option "MK_LOADER_EFI_SECUREBOOT" was added to allow loading of trusted anchors from UEFI. Certificate revocation support is also introduced. The forbidden certificates are loaded from dbx variable. Verification fails in two cases: There is a direct match between cert in dbx and the one in the chain. The CA used to sign the chain is found in dbx. One can also insert a hash of TBS section of a certificate into dbx. In this case verifications fails only if a direct match with a certificate in chain is found. Submitted by: Kornel Duleba <mindal@semihalf.com> Reviewed by: sjg Obtained from: Semihalf Sponsored by: Stormshield Differential Revision: https://reviews.freebsd.org/D19093
This commit is contained in:
parent
ce37b71e68
commit
13ea0450a9
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=344840
@ -31,6 +31,17 @@ BRSSL_SRCS+= \
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${BEARSSL}/tools/xmem.c \
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${BEARSSL}/tools/xmem.c \
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${BEARSSL}/tools/vector.c
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${BEARSSL}/tools/vector.c
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BRSSL_DEPS= \
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brf.c \
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vets.c \
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veta.c
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.if ${MK_LOADER_EFI_SECUREBOOT} != "no"
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BRSSL_DEPS+= \
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efi_init.c \
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efi_variables.c
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.endif
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# we do not need/want nested objdirs
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# we do not need/want nested objdirs
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OBJS_SRCS_FILTER = T R
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OBJS_SRCS_FILTER = T R
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@ -134,7 +145,7 @@ vse.h:
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echo 'NULL };' ) > ${.TARGET}
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echo 'NULL };' ) > ${.TARGET}
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.for s in ${BRSSL_SRCS} brf.c vets.c veta.c
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.for s in ${BRSSL_SRCS} ${BRSSL_DEPS}
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.ifdef BRSSL_SED
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.ifdef BRSSL_SED
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$s: brssl.h
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$s: brssl.h
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.endif
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.endif
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@ -16,6 +16,19 @@ SRCS+= \
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vepcr.c \
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vepcr.c \
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verify_file.c \
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verify_file.c \
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# Build library with support for the UEFI based authentication
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.if ${MK_LOADER_EFI_SECUREBOOT} == "yes"
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SRCS+= \
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efi/efi_variables.c \
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efi/efi_init.c
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# Add includes required by efi part
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CFLAGS+= \
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-I${SRCTOP}/stand/efi/include \
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-I${SRCTOP}/lib/libsecureboot/efi/include \
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-I${SRCTOP}/stand/efi/include/${MACHINE}
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.endif
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# this is the list of paths (relative to a file
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# this is the list of paths (relative to a file
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# that we need to verify) used to find a signed manifest.
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# that we need to verify) used to find a signed manifest.
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# the signature extensions in VE_SIGNATURE_EXT_LIST
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# the signature extensions in VE_SIGNATURE_EXT_LIST
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74
lib/libsecureboot/efi/efi_init.c
Normal file
74
lib/libsecureboot/efi/efi_init.c
Normal file
@ -0,0 +1,74 @@
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/*-
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* Copyright (c) 2019 Stormshield.
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* Copyright (c) 2019 Semihalf.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define NEED_BRSSL_H
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#include "../libsecureboot-priv.h"
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#include <brssl.h>
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void
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ve_efi_init(void)
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{
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br_x509_certificate *xcs;
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hash_data *digests;
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size_t num;
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int result;
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static int once = 0;
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if (once > 0)
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return;
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once = 1;
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result = efi_secure_boot_enabled();
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if (result <= 0)
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return;
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xcs = efi_get_trusted_certs(&num);
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if (num > 0 && xcs != NULL) {
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num = ve_trust_anchors_add(xcs, num);
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free_certificates(xcs, num);
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}
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xcs = efi_get_forbidden_certs(&num);
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if (num > 0 && xcs != NULL) {
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num = ve_forbidden_anchors_add(xcs, num);
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free_certificates(xcs, num);
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}
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digests = efi_get_forbidden_digests(&num);
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if (num > 0 && digests != NULL) {
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ve_forbidden_digest_add(digests, num);
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/*
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* Don't free the buffors for digests,
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* since they are shallow copied.
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*/
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xfree(digests);
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}
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return;
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}
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278
lib/libsecureboot/efi/efi_variables.c
Normal file
278
lib/libsecureboot/efi/efi_variables.c
Normal file
@ -0,0 +1,278 @@
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/*-
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* Copyright (c) 2019 Stormshield.
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* Copyright (c) 2019 Semihalf.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stand.h>
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#include <string.h>
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#include <efi.h>
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#include <efilib.h>
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#include <Guid/ImageAuthentication.h>
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#define NEED_BRSSL_H
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#include "../libsecureboot-priv.h"
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#include <brssl.h>
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static EFI_GUID ImageSecurityDatabaseGUID = EFI_IMAGE_SECURITY_DATABASE_GUID;
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static EFI_GUID efiCertX509GUID = EFI_CERT_X509_GUID;
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static EFI_GUID efiCertX509Sha256GUID = EFI_CERT_X509_SHA256_GUID;
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static EFI_GUID efiCertX509Sha384GUID = EFI_CERT_X509_SHA384_GUID;
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static EFI_GUID efiCertX509Sha5122UID = EFI_CERT_X509_SHA512_GUID;
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/*
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* Check if Secure Boot is enabled in firmware.
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* We evaluate two variables - Secure Boot and Setup Mode.
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* Secure Boot is enforced only if the first one equals 1 and the other 0.
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*/
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int
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efi_secure_boot_enabled(void)
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{
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UINT8 SecureBoot;
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UINT8 SetupMode;
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size_t length;
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EFI_STATUS status;
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length = sizeof(SecureBoot);
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status = efi_global_getenv("SecureBoot", &SecureBoot, &length);
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if (status != EFI_SUCCESS) {
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if (status == EFI_NOT_FOUND)
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return (0);
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printf("Failed to read \"SecureBoot\" variable\n");
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return (-efi_status_to_errno(status));
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}
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length = sizeof(SetupMode);
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status = efi_global_getenv("SetupMode", &SetupMode, &length);
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if (status != EFI_SUCCESS)
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SetupMode = 0;
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printf(" SecureBoot: %d, SetupMode: %d\n", SecureBoot, SetupMode);
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return (SecureBoot == 1 && SetupMode == 0);
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}
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/*
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* Iterate through UEFI variable and extract X509 certificates from it.
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* The EFI_* structures and related guids are defined in UEFI standard.
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*/
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static br_x509_certificate*
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efi_get_certs(const char *name, size_t *count)
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{
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br_x509_certificate *certs;
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UINT8 *database;
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EFI_SIGNATURE_LIST *list;
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EFI_SIGNATURE_DATA *entry;
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size_t db_size;
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ssize_t cert_count;
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EFI_STATUS status;
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database = NULL;
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certs = NULL;
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db_size = 0;
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cert_count = 0;
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/*
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* Read variable length and allocate memory for it
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*/
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status = efi_getenv(&ImageSecurityDatabaseGUID, name, database, &db_size);
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if (status != EFI_BUFFER_TOO_SMALL)
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return (NULL);
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database = malloc(db_size);
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if (database == NULL)
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return (NULL);
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status = efi_getenv(&ImageSecurityDatabaseGUID, name, database, &db_size);
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|
if (status != EFI_SUCCESS)
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goto fail;
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for (list = (EFI_SIGNATURE_LIST*) database;
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db_size >= list->SignatureListSize && db_size > 0;
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db_size -= list->SignatureListSize,
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list = (EFI_SIGNATURE_LIST*)
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|
((UINT8*)list + list->SignatureListSize)) {
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/* We are only interested in entries containing X509 certs. */
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|
if (memcmp(&efiCertX509GUID,
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|
&list->SignatureType,
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|
sizeof(EFI_GUID)) != 0) {
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|
continue;
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|
}
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|
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|
entry = (EFI_SIGNATURE_DATA*)
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|
((UINT8*)list +
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|
sizeof(EFI_SIGNATURE_LIST) +
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|
list->SignatureHeaderSize);
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|
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certs = realloc(certs,
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(cert_count + 1) * sizeof(br_x509_certificate));
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|
if (certs == NULL) {
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|
cert_count = 0;
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|
goto fail;
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|
}
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|
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||||||
|
certs[cert_count].data_len = list->SignatureSize - sizeof(EFI_GUID);
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|
certs[cert_count].data = malloc(certs[cert_count].data_len);
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|
if (certs[cert_count].data == NULL)
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|
goto fail;
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|
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|
memcpy(certs[cert_count].data,
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|
entry->SignatureData,
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|
certs[cert_count].data_len);
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|
|
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|
cert_count++;
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|
}
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|
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|
*count = cert_count;
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|
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|
xfree(database);
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|
return (certs);
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|
|
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|
fail:
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|
free_certificates(certs, cert_count);
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||||||
|
xfree(database);
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|
return (NULL);
|
||||||
|
|
||||||
|
}
|
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|
|
||||||
|
/*
|
||||||
|
* Extract digests from UEFI "dbx" variable.
|
||||||
|
* UEFI standard specifies three types of digest - sha256, sha386, sha512.
|
||||||
|
*/
|
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|
hash_data*
|
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|
efi_get_forbidden_digests(size_t *count)
|
||||||
|
{
|
||||||
|
UINT8 *database;
|
||||||
|
hash_data *digests;
|
||||||
|
EFI_SIGNATURE_LIST *list;
|
||||||
|
EFI_SIGNATURE_DATA *entry;
|
||||||
|
size_t db_size, header_size, hash_size;
|
||||||
|
int digest_count, entry_count;
|
||||||
|
EFI_STATUS status;
|
||||||
|
|
||||||
|
db_size = 0;
|
||||||
|
digest_count = 0;
|
||||||
|
database = NULL;
|
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|
digests = NULL;
|
||||||
|
|
||||||
|
status = efi_getenv(&ImageSecurityDatabaseGUID, "dbx", database, &db_size);
|
||||||
|
if (status != EFI_BUFFER_TOO_SMALL)
|
||||||
|
return (NULL);
|
||||||
|
|
||||||
|
database = malloc(db_size);
|
||||||
|
if (database == NULL)
|
||||||
|
return (NULL);
|
||||||
|
|
||||||
|
status = efi_getenv(&ImageSecurityDatabaseGUID, "dbx", database, &db_size);
|
||||||
|
if (status != EFI_SUCCESS)
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
|
||||||
|
for (list = (EFI_SIGNATURE_LIST*) database;
|
||||||
|
db_size >= list->SignatureListSize && db_size > 0;
|
||||||
|
db_size -= list->SignatureListSize,
|
||||||
|
list = (EFI_SIGNATURE_LIST*)
|
||||||
|
((UINT8*)list + list->SignatureListSize)) {
|
||||||
|
|
||||||
|
/* We are only interested in entries that contain digests. */
|
||||||
|
if (memcmp(&efiCertX509Sha256GUID, &list->SignatureType,
|
||||||
|
sizeof(EFI_GUID)) == 0) {
|
||||||
|
hash_size = br_sha256_SIZE;
|
||||||
|
} else if (memcmp(&efiCertX509Sha384GUID, &list->SignatureType,
|
||||||
|
sizeof(EFI_GUID)) == 0) {
|
||||||
|
hash_size = br_sha384_SIZE;
|
||||||
|
} else if (memcmp(&efiCertX509Sha5122UID, &list->SignatureType,
|
||||||
|
sizeof(EFI_GUID)) == 0) {
|
||||||
|
hash_size = br_sha512_SIZE;
|
||||||
|
} else {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* A single entry can have multiple digests
|
||||||
|
* of the same type for some reason.
|
||||||
|
*/
|
||||||
|
header_size = sizeof(EFI_SIGNATURE_LIST) + list->SignatureHeaderSize;
|
||||||
|
|
||||||
|
/* Calculate the number of entries basing on structure size */
|
||||||
|
entry_count = list->SignatureListSize - header_size;
|
||||||
|
entry_count /= list->SignatureSize;
|
||||||
|
entry = (EFI_SIGNATURE_DATA*)((UINT8*)list + header_size);
|
||||||
|
while (entry_count-- > 0) {
|
||||||
|
digests = realloc(digests,
|
||||||
|
(digest_count + 1) * sizeof(hash_data));
|
||||||
|
if (digests == NULL) {
|
||||||
|
digest_count = 0;
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
digests[digest_count].data = malloc(hash_size);
|
||||||
|
if (digests[digest_count].data == NULL)
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
memcpy(digests[digest_count].data,
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||||||
|
entry->SignatureData,
|
||||||
|
hash_size);
|
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|
digests[digest_count].hash_size = hash_size;
|
||||||
|
|
||||||
|
entry = (EFI_SIGNATURE_DATA*)(entry + list->SignatureSize);
|
||||||
|
digest_count++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
xfree(database);
|
||||||
|
if (count != NULL)
|
||||||
|
*count = digest_count;
|
||||||
|
|
||||||
|
return (digests);
|
||||||
|
|
||||||
|
fail:
|
||||||
|
while (digest_count--)
|
||||||
|
xfree(digests[digest_count].data);
|
||||||
|
|
||||||
|
xfree(database);
|
||||||
|
xfree(digests);
|
||||||
|
return (NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Copy x509 certificates from db */
|
||||||
|
br_x509_certificate*
|
||||||
|
efi_get_trusted_certs(size_t *count)
|
||||||
|
{
|
||||||
|
return (efi_get_certs("db", count));
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Copy forbidden certificates from dbx */
|
||||||
|
br_x509_certificate*
|
||||||
|
efi_get_forbidden_certs(size_t *count)
|
||||||
|
{
|
||||||
|
return (efi_get_certs("dbx", count));
|
||||||
|
}
|
194
lib/libsecureboot/efi/include/Guid/GlobalVariable.h
Normal file
194
lib/libsecureboot/efi/include/Guid/GlobalVariable.h
Normal file
@ -0,0 +1,194 @@
|
|||||||
|
/** @file
|
||||||
|
GUID for EFI (NVRAM) Variables.
|
||||||
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
||||||
|
This program and the accompanying materials
|
||||||
|
are licensed and made available under the terms and conditions of the BSD License
|
||||||
|
which accompanies this distribution. The full text of the license may be found at
|
||||||
|
http://opensource.org/licenses/bsd-license.php
|
||||||
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||||
|
@par Revision Reference:
|
||||||
|
GUID defined in UEFI 2.1
|
||||||
|
**/
|
||||||
|
|
||||||
|
#ifndef __GLOBAL_VARIABLE_GUID_H__
|
||||||
|
#define __GLOBAL_VARIABLE_GUID_H__
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#ifndef EFI_GLOBAL_VARIABLE
|
||||||
|
#define EFI_GLOBAL_VARIABLE \
|
||||||
|
{ \
|
||||||
|
0x8BE4DF61, 0x93CA, 0x11d2, {0xAA, 0x0D, 0x00, 0xE0, 0x98, 0x03, 0x2B, 0x8C } \
|
||||||
|
}
|
||||||
|
#endif /* EFI_GLOBAL_VARIABLE */
|
||||||
|
|
||||||
|
extern EFI_GUID gEfiGlobalVariableGuid;
|
||||||
|
|
||||||
|
//
|
||||||
|
// Follow UEFI 2.4 spec:
|
||||||
|
// To prevent name collisions with possible future globally defined variables,
|
||||||
|
// other internal firmware data variables that are not defined here must be
|
||||||
|
// saved with a unique VendorGuid other than EFI_GLOBAL_VARIABLE or
|
||||||
|
// any other GUID defined by the UEFI Specification. Implementations must
|
||||||
|
// only permit the creation of variables with a UEFI Specification-defined
|
||||||
|
// VendorGuid when these variables are documented in the UEFI Specification.
|
||||||
|
//
|
||||||
|
// Note: except the globally defined variables defined below, the spec also defines
|
||||||
|
// L"Boot####" - A boot load option.
|
||||||
|
// L"Driver####" - A driver load option.
|
||||||
|
// L"SysPrep####" - A System Prep application load option.
|
||||||
|
// L"Key####" - Describes hot key relationship with a Boot#### load option.
|
||||||
|
// The attribute for them is NV+BS+RT, #### is a printed hex value, and no 0x or h
|
||||||
|
// is included in the hex value. They can not be expressed as a #define like other globally
|
||||||
|
// defined variables, it is because we can not list the Boot0000, Boot0001, etc one by one.
|
||||||
|
//
|
||||||
|
|
||||||
|
///
|
||||||
|
/// The language codes that the firmware supports. This value is deprecated.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_LANG_CODES_VARIABLE_NAME L"LangCodes"
|
||||||
|
///
|
||||||
|
/// The language code that the system is configured for. This value is deprecated.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_LANG_VARIABLE_NAME L"Lang"
|
||||||
|
///
|
||||||
|
/// The firmware's boot managers timeout, in seconds, before initiating the default boot selection.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_TIME_OUT_VARIABLE_NAME L"Timeout"
|
||||||
|
///
|
||||||
|
/// The language codes that the firmware supports.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_PLATFORM_LANG_CODES_VARIABLE_NAME L"PlatformLangCodes"
|
||||||
|
///
|
||||||
|
/// The language code that the system is configured for.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_PLATFORM_LANG_VARIABLE_NAME L"PlatformLang"
|
||||||
|
///
|
||||||
|
/// The device path of the default input/output/error output console.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_CON_IN_VARIABLE_NAME L"ConIn"
|
||||||
|
#define EFI_CON_OUT_VARIABLE_NAME L"ConOut"
|
||||||
|
#define EFI_ERR_OUT_VARIABLE_NAME L"ErrOut"
|
||||||
|
///
|
||||||
|
/// The device path of all possible input/output/error output devices.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_CON_IN_DEV_VARIABLE_NAME L"ConInDev"
|
||||||
|
#define EFI_CON_OUT_DEV_VARIABLE_NAME L"ConOutDev"
|
||||||
|
#define EFI_ERR_OUT_DEV_VARIABLE_NAME L"ErrOutDev"
|
||||||
|
///
|
||||||
|
/// The ordered boot option load list.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_BOOT_ORDER_VARIABLE_NAME L"BootOrder"
|
||||||
|
///
|
||||||
|
/// The boot option for the next boot only.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_BOOT_NEXT_VARIABLE_NAME L"BootNext"
|
||||||
|
///
|
||||||
|
/// The boot option that was selected for the current boot.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_BOOT_CURRENT_VARIABLE_NAME L"BootCurrent"
|
||||||
|
///
|
||||||
|
/// The types of boot options supported by the boot manager. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_BOOT_OPTION_SUPPORT_VARIABLE_NAME L"BootOptionSupport"
|
||||||
|
///
|
||||||
|
/// The ordered driver load option list.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_DRIVER_ORDER_VARIABLE_NAME L"DriverOrder"
|
||||||
|
///
|
||||||
|
/// The ordered System Prep Application load option list.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_SYS_PREP_ORDER_VARIABLE_NAME L"SysPrepOrder"
|
||||||
|
///
|
||||||
|
/// Identifies the level of hardware error record persistence
|
||||||
|
/// support implemented by the platform. This variable is
|
||||||
|
/// only modified by firmware and is read-only to the OS.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_HW_ERR_REC_SUPPORT_VARIABLE_NAME L"HwErrRecSupport"
|
||||||
|
///
|
||||||
|
/// Whether the system is operating in setup mode (1) or not (0).
|
||||||
|
/// All other values are reserved. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_SETUP_MODE_NAME L"SetupMode"
|
||||||
|
///
|
||||||
|
/// The Key Exchange Key Signature Database.
|
||||||
|
/// Its attribute is NV+BS+RT+AT.
|
||||||
|
///
|
||||||
|
#define EFI_KEY_EXCHANGE_KEY_NAME L"KEK"
|
||||||
|
///
|
||||||
|
/// The public Platform Key.
|
||||||
|
/// Its attribute is NV+BS+RT+AT.
|
||||||
|
///
|
||||||
|
#define EFI_PLATFORM_KEY_NAME L"PK"
|
||||||
|
///
|
||||||
|
/// Array of GUIDs representing the type of signatures supported
|
||||||
|
/// by the platform firmware. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_SIGNATURE_SUPPORT_NAME L"SignatureSupport"
|
||||||
|
///
|
||||||
|
/// Whether the platform firmware is operating in Secure boot mode (1) or not (0).
|
||||||
|
/// All other values are reserved. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_SECURE_BOOT_MODE_NAME L"SecureBoot"
|
||||||
|
///
|
||||||
|
/// The OEM's default Key Exchange Key Signature Database. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_KEK_DEFAULT_VARIABLE_NAME L"KEKDefault"
|
||||||
|
///
|
||||||
|
/// The OEM's default public Platform Key. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_PK_DEFAULT_VARIABLE_NAME L"PKDefault"
|
||||||
|
///
|
||||||
|
/// The OEM's default secure boot signature store. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_DB_DEFAULT_VARIABLE_NAME L"dbDefault"
|
||||||
|
///
|
||||||
|
/// The OEM's default secure boot blacklist signature store. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_DBX_DEFAULT_VARIABLE_NAME L"dbxDefault"
|
||||||
|
///
|
||||||
|
/// The OEM's default secure boot timestamp signature store. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_DBT_DEFAULT_VARIABLE_NAME L"dbtDefault"
|
||||||
|
///
|
||||||
|
/// Allows the firmware to indicate supported features and actions to the OS.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_OS_INDICATIONS_SUPPORT_VARIABLE_NAME L"OsIndicationsSupported"
|
||||||
|
///
|
||||||
|
/// Allows the OS to request the firmware to enable certain features and to take certain actions.
|
||||||
|
/// Its attribute is NV+BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_OS_INDICATIONS_VARIABLE_NAME L"OsIndications"
|
||||||
|
///
|
||||||
|
/// Whether the system is configured to use only vendor provided
|
||||||
|
/// keys or not. Should be treated as read-only.
|
||||||
|
/// Its attribute is BS+RT.
|
||||||
|
///
|
||||||
|
#define EFI_VENDOR_KEYS_VARIABLE_NAME L"VendorKeys"
|
||||||
|
|
||||||
|
#endif
|
352
lib/libsecureboot/efi/include/Guid/ImageAuthentication.h
Normal file
352
lib/libsecureboot/efi/include/Guid/ImageAuthentication.h
Normal file
@ -0,0 +1,352 @@
|
|||||||
|
/** @file
|
||||||
|
Image signature database are defined for the signed image validation.
|
||||||
|
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
|
||||||
|
This program and the accompanying materials
|
||||||
|
are licensed and made available under the terms and conditions of the BSD License
|
||||||
|
which accompanies this distribution. The full text of the license may be found at
|
||||||
|
http://opensource.org/licenses/bsd-license.php
|
||||||
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||||
|
@par Revision Reference:
|
||||||
|
GUIDs defined in UEFI 2.5 spec.
|
||||||
|
**/
|
||||||
|
|
||||||
|
#ifndef __IMAGE_AUTHTICATION_H__
|
||||||
|
#define __IMAGE_AUTHTICATION_H__
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#include <Guid/GlobalVariable.h>
|
||||||
|
#include <Protocol/Hash.h>
|
||||||
|
|
||||||
|
#define EFI_IMAGE_SECURITY_DATABASE_GUID \
|
||||||
|
{ \
|
||||||
|
0xd719b2cb, 0x3d3a, 0x4596, { 0xa3, 0xbc, 0xda, 0xd0, 0xe, 0x67, 0x65, 0x6f } \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// Varialbe name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
|
||||||
|
/// for the authorized signature database.
|
||||||
|
///
|
||||||
|
#define EFI_IMAGE_SECURITY_DATABASE L"db"
|
||||||
|
///
|
||||||
|
/// Varialbe name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
|
||||||
|
/// for the forbidden signature database.
|
||||||
|
///
|
||||||
|
#define EFI_IMAGE_SECURITY_DATABASE1 L"dbx"
|
||||||
|
///
|
||||||
|
/// Variable name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
|
||||||
|
/// for the timestamp signature database.
|
||||||
|
///
|
||||||
|
#define EFI_IMAGE_SECURITY_DATABASE2 L"dbt"
|
||||||
|
|
||||||
|
#define SECURE_BOOT_MODE_ENABLE 1
|
||||||
|
#define SECURE_BOOT_MODE_DISABLE 0
|
||||||
|
|
||||||
|
#define SETUP_MODE 1
|
||||||
|
#define USER_MODE 0
|
||||||
|
|
||||||
|
//***********************************************************************
|
||||||
|
// Signature Database
|
||||||
|
//***********************************************************************
|
||||||
|
///
|
||||||
|
/// The format of a signature database.
|
||||||
|
///
|
||||||
|
#pragma pack(1)
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
///
|
||||||
|
/// An identifier which identifies the agent which added the signature to the list.
|
||||||
|
///
|
||||||
|
EFI_GUID SignatureOwner;
|
||||||
|
///
|
||||||
|
/// The format of the signature is defined by the SignatureType.
|
||||||
|
///
|
||||||
|
UINT8 SignatureData[1];
|
||||||
|
} EFI_SIGNATURE_DATA;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
///
|
||||||
|
/// Type of the signature. GUID signature types are defined in below.
|
||||||
|
///
|
||||||
|
EFI_GUID SignatureType;
|
||||||
|
///
|
||||||
|
/// Total size of the signature list, including this header.
|
||||||
|
///
|
||||||
|
UINT32 SignatureListSize;
|
||||||
|
///
|
||||||
|
/// Size of the signature header which precedes the array of signatures.
|
||||||
|
///
|
||||||
|
UINT32 SignatureHeaderSize;
|
||||||
|
///
|
||||||
|
/// Size of each signature.
|
||||||
|
///
|
||||||
|
UINT32 SignatureSize;
|
||||||
|
///
|
||||||
|
/// Header before the array of signatures. The format of this header is specified
|
||||||
|
/// by the SignatureType.
|
||||||
|
/// UINT8 SignatureHeader[SignatureHeaderSize];
|
||||||
|
///
|
||||||
|
/// An array of signatures. Each signature is SignatureSize bytes in length.
|
||||||
|
/// EFI_SIGNATURE_DATA Signatures[][SignatureSize];
|
||||||
|
///
|
||||||
|
} EFI_SIGNATURE_LIST;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
///
|
||||||
|
/// The SHA256 hash of an X.509 certificate's To-Be-Signed contents.
|
||||||
|
///
|
||||||
|
EFI_SHA256_HASH ToBeSignedHash;
|
||||||
|
///
|
||||||
|
/// The time that the certificate shall be considered to be revoked.
|
||||||
|
///
|
||||||
|
EFI_TIME TimeOfRevocation;
|
||||||
|
} EFI_CERT_X509_SHA256;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
///
|
||||||
|
/// The SHA384 hash of an X.509 certificate's To-Be-Signed contents.
|
||||||
|
///
|
||||||
|
EFI_SHA384_HASH ToBeSignedHash;
|
||||||
|
///
|
||||||
|
/// The time that the certificate shall be considered to be revoked.
|
||||||
|
///
|
||||||
|
EFI_TIME TimeOfRevocation;
|
||||||
|
} EFI_CERT_X509_SHA384;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
///
|
||||||
|
/// The SHA512 hash of an X.509 certificate's To-Be-Signed contents.
|
||||||
|
///
|
||||||
|
EFI_SHA512_HASH ToBeSignedHash;
|
||||||
|
///
|
||||||
|
/// The time that the certificate shall be considered to be revoked.
|
||||||
|
///
|
||||||
|
EFI_TIME TimeOfRevocation;
|
||||||
|
} EFI_CERT_X509_SHA512;
|
||||||
|
|
||||||
|
#pragma pack()
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing a SHA-256 hash. The SignatureHeader size shall
|
||||||
|
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
|
||||||
|
/// 32 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_SHA256_GUID \
|
||||||
|
{ \
|
||||||
|
0xc1c41626, 0x504c, 0x4092, {0xac, 0xa9, 0x41, 0xf9, 0x36, 0x93, 0x43, 0x28} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing an RSA-2048 key. The key (only the modulus
|
||||||
|
/// since the public key exponent is known to be 0x10001) shall be stored in big-endian
|
||||||
|
/// order.
|
||||||
|
/// The SignatureHeader size shall always be 0. The SignatureSize shall always be 16 (size
|
||||||
|
/// of SignatureOwner component) + 256 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_RSA2048_GUID \
|
||||||
|
{ \
|
||||||
|
0x3c5766e8, 0x269c, 0x4e34, {0xaa, 0x14, 0xed, 0x77, 0x6e, 0x85, 0xb3, 0xb6} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing a RSA-2048 signature of a SHA-256 hash. The
|
||||||
|
/// SignatureHeader size shall always be 0. The SignatureSize shall always be 16 (size of
|
||||||
|
/// SignatureOwner component) + 256 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_RSA2048_SHA256_GUID \
|
||||||
|
{ \
|
||||||
|
0xe2b36190, 0x879b, 0x4a3d, {0xad, 0x8d, 0xf2, 0xe7, 0xbb, 0xa3, 0x27, 0x84} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing a SHA-1 hash. The SignatureSize shall always
|
||||||
|
/// be 16 (size of SignatureOwner component) + 20 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_SHA1_GUID \
|
||||||
|
{ \
|
||||||
|
0x826ca512, 0xcf10, 0x4ac9, {0xb1, 0x87, 0xbe, 0x1, 0x49, 0x66, 0x31, 0xbd} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// TThis identifies a signature containing a RSA-2048 signature of a SHA-1 hash. The
|
||||||
|
/// SignatureHeader size shall always be 0. The SignatureSize shall always be 16 (size of
|
||||||
|
/// SignatureOwner component) + 256 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_RSA2048_SHA1_GUID \
|
||||||
|
{ \
|
||||||
|
0x67f8444f, 0x8743, 0x48f1, {0xa3, 0x28, 0x1e, 0xaa, 0xb8, 0x73, 0x60, 0x80} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature based on an X.509 certificate. If the signature is an X.509
|
||||||
|
/// certificate then verification of the signature of an image should validate the public
|
||||||
|
/// key certificate in the image using certificate path verification, up to this X.509
|
||||||
|
/// certificate as a trusted root. The SignatureHeader size shall always be 0. The
|
||||||
|
/// SignatureSize may vary but shall always be 16 (size of the SignatureOwner component) +
|
||||||
|
/// the size of the certificate itself.
|
||||||
|
/// Note: This means that each certificate will normally be in a separate EFI_SIGNATURE_LIST.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_X509_GUID \
|
||||||
|
{ \
|
||||||
|
0xa5c059a1, 0x94e4, 0x4aa7, {0x87, 0xb5, 0xab, 0x15, 0x5c, 0x2b, 0xf0, 0x72} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing a SHA-224 hash. The SignatureHeader size shall
|
||||||
|
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
|
||||||
|
/// 28 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_SHA224_GUID \
|
||||||
|
{ \
|
||||||
|
0xb6e5233, 0xa65c, 0x44c9, {0x94, 0x7, 0xd9, 0xab, 0x83, 0xbf, 0xc8, 0xbd} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing a SHA-384 hash. The SignatureHeader size shall
|
||||||
|
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
|
||||||
|
/// 48 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_SHA384_GUID \
|
||||||
|
{ \
|
||||||
|
0xff3e5307, 0x9fd0, 0x48c9, {0x85, 0xf1, 0x8a, 0xd5, 0x6c, 0x70, 0x1e, 0x1} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing a SHA-512 hash. The SignatureHeader size shall
|
||||||
|
/// always be 0. The SignatureSize shall always be 16 (size of SignatureOwner component) +
|
||||||
|
/// 64 bytes.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_SHA512_GUID \
|
||||||
|
{ \
|
||||||
|
0x93e0fae, 0xa6c4, 0x4f50, {0x9f, 0x1b, 0xd4, 0x1e, 0x2b, 0x89, 0xc1, 0x9a} \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing the SHA256 hash of an X.509 certificate's
|
||||||
|
/// To-Be-Signed contents, and a time of revocation. The SignatureHeader size shall
|
||||||
|
/// always be 0. The SignatureSize shall always be 16 (size of the SignatureOwner component)
|
||||||
|
/// + 48 bytes for an EFI_CERT_X509_SHA256 structure. If the TimeOfRevocation is non-zero,
|
||||||
|
/// the certificate should be considered to be revoked from that time and onwards, and
|
||||||
|
/// otherwise the certificate shall be considered to always be revoked.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_X509_SHA256_GUID \
|
||||||
|
{ \
|
||||||
|
0x3bd2a492, 0x96c0, 0x4079, {0xb4, 0x20, 0xfc, 0xf9, 0x8e, 0xf1, 0x03, 0xed } \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing the SHA384 hash of an X.509 certificate's
|
||||||
|
/// To-Be-Signed contents, and a time of revocation. The SignatureHeader size shall
|
||||||
|
/// always be 0. The SignatureSize shall always be 16 (size of the SignatureOwner component)
|
||||||
|
/// + 64 bytes for an EFI_CERT_X509_SHA384 structure. If the TimeOfRevocation is non-zero,
|
||||||
|
/// the certificate should be considered to be revoked from that time and onwards, and
|
||||||
|
/// otherwise the certificate shall be considered to always be revoked.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_X509_SHA384_GUID \
|
||||||
|
{ \
|
||||||
|
0x7076876e, 0x80c2, 0x4ee6, {0xaa, 0xd2, 0x28, 0xb3, 0x49, 0xa6, 0x86, 0x5b } \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing the SHA512 hash of an X.509 certificate's
|
||||||
|
/// To-Be-Signed contents, and a time of revocation. The SignatureHeader size shall
|
||||||
|
/// always be 0. The SignatureSize shall always be 16 (size of the SignatureOwner component)
|
||||||
|
/// + 80 bytes for an EFI_CERT_X509_SHA512 structure. If the TimeOfRevocation is non-zero,
|
||||||
|
/// the certificate should be considered to be revoked from that time and onwards, and
|
||||||
|
/// otherwise the certificate shall be considered to always be revoked.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_X509_SHA512_GUID \
|
||||||
|
{ \
|
||||||
|
0x446dbf63, 0x2502, 0x4cda, {0xbc, 0xfa, 0x24, 0x65, 0xd2, 0xb0, 0xfe, 0x9d } \
|
||||||
|
}
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This identifies a signature containing a DER-encoded PKCS #7 version 1.5 [RFC2315]
|
||||||
|
/// SignedData value.
|
||||||
|
///
|
||||||
|
#define EFI_CERT_TYPE_PKCS7_GUID \
|
||||||
|
{ \
|
||||||
|
0x4aafd29d, 0x68df, 0x49ee, {0x8a, 0xa9, 0x34, 0x7d, 0x37, 0x56, 0x65, 0xa7} \
|
||||||
|
}
|
||||||
|
|
||||||
|
//***********************************************************************
|
||||||
|
// Image Execution Information Table Definition
|
||||||
|
//***********************************************************************
|
||||||
|
typedef UINT32 EFI_IMAGE_EXECUTION_ACTION;
|
||||||
|
|
||||||
|
#define EFI_IMAGE_EXECUTION_AUTHENTICATION 0x00000007
|
||||||
|
#define EFI_IMAGE_EXECUTION_AUTH_UNTESTED 0x00000000
|
||||||
|
#define EFI_IMAGE_EXECUTION_AUTH_SIG_FAILED 0x00000001
|
||||||
|
#define EFI_IMAGE_EXECUTION_AUTH_SIG_PASSED 0x00000002
|
||||||
|
#define EFI_IMAGE_EXECUTION_AUTH_SIG_NOT_FOUND 0x00000003
|
||||||
|
#define EFI_IMAGE_EXECUTION_AUTH_SIG_FOUND 0x00000004
|
||||||
|
#define EFI_IMAGE_EXECUTION_POLICY_FAILED 0x00000005
|
||||||
|
#define EFI_IMAGE_EXECUTION_INITIALIZED 0x00000008
|
||||||
|
|
||||||
|
//
|
||||||
|
// EFI_IMAGE_EXECUTION_INFO is added to EFI System Configuration Table
|
||||||
|
// and assigned the GUID EFI_IMAGE_SECURITY_DATABASE_GUID.
|
||||||
|
//
|
||||||
|
typedef struct {
|
||||||
|
///
|
||||||
|
/// Describes the action taken by the firmware regarding this image.
|
||||||
|
///
|
||||||
|
EFI_IMAGE_EXECUTION_ACTION Action;
|
||||||
|
///
|
||||||
|
/// Size of all of the entire structure.
|
||||||
|
///
|
||||||
|
UINT32 InfoSize;
|
||||||
|
///
|
||||||
|
/// If this image was a UEFI device driver (for option ROM, for example) this is the
|
||||||
|
/// null-terminated, user-friendly name for the device. If the image was for an application,
|
||||||
|
/// then this is the name of the application. If this cannot be determined, then a simple
|
||||||
|
/// NULL character should be put in this position.
|
||||||
|
/// CHAR16 Name[];
|
||||||
|
///
|
||||||
|
|
||||||
|
///
|
||||||
|
/// For device drivers, this is the device path of the device for which this device driver
|
||||||
|
/// was intended. In some cases, the driver itself may be stored as part of the system
|
||||||
|
/// firmware, but this field should record the device's path, not the firmware path. For
|
||||||
|
/// applications, this is the device path of the application. If this cannot be determined,
|
||||||
|
/// a simple end-of-path device node should be put in this position.
|
||||||
|
/// EFI_DEVICE_PATH_PROTOCOL DevicePath;
|
||||||
|
///
|
||||||
|
|
||||||
|
///
|
||||||
|
/// Zero or more image signatures. If the image contained no signatures,
|
||||||
|
/// then this field is empty.
|
||||||
|
/// EFI_SIGNATURE_LIST Signature;
|
||||||
|
///
|
||||||
|
} EFI_IMAGE_EXECUTION_INFO;
|
||||||
|
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
///
|
||||||
|
/// Number of EFI_IMAGE_EXECUTION_INFO structures.
|
||||||
|
///
|
||||||
|
UINTN NumberOfImages;
|
||||||
|
///
|
||||||
|
/// Number of image instances of EFI_IMAGE_EXECUTION_INFO structures.
|
||||||
|
///
|
||||||
|
// EFI_IMAGE_EXECUTION_INFO InformationInfo[]
|
||||||
|
} EFI_IMAGE_EXECUTION_INFO_TABLE;
|
||||||
|
|
||||||
|
extern EFI_GUID gEfiImageSecurityDatabaseGuid;
|
||||||
|
extern EFI_GUID gEfiCertSha256Guid;
|
||||||
|
extern EFI_GUID gEfiCertRsa2048Guid;
|
||||||
|
extern EFI_GUID gEfiCertRsa2048Sha256Guid;
|
||||||
|
extern EFI_GUID gEfiCertSha1Guid;
|
||||||
|
extern EFI_GUID gEfiCertRsa2048Sha1Guid;
|
||||||
|
extern EFI_GUID gEfiCertX509Guid;
|
||||||
|
extern EFI_GUID gEfiCertSha224Guid;
|
||||||
|
extern EFI_GUID gEfiCertSha384Guid;
|
||||||
|
extern EFI_GUID gEfiCertSha512Guid;
|
||||||
|
extern EFI_GUID gEfiCertX509Sha256Guid;
|
||||||
|
extern EFI_GUID gEfiCertX509Sha384Guid;
|
||||||
|
extern EFI_GUID gEfiCertX509Sha512Guid;
|
||||||
|
extern EFI_GUID gEfiCertPkcs7Guid;
|
||||||
|
|
||||||
|
#endif
|
171
lib/libsecureboot/efi/include/Protocol/Hash.h
Normal file
171
lib/libsecureboot/efi/include/Protocol/Hash.h
Normal file
@ -0,0 +1,171 @@
|
|||||||
|
/** @file
|
||||||
|
EFI_HASH_SERVICE_BINDING_PROTOCOL as defined in UEFI 2.0.
|
||||||
|
EFI_HASH_PROTOCOL as defined in UEFI 2.0.
|
||||||
|
The EFI Hash Service Binding Protocol is used to locate hashing services support
|
||||||
|
provided by a driver and to create and destroy instances of the EFI Hash Protocol
|
||||||
|
so that a multiple drivers can use the underlying hashing services.
|
||||||
|
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
|
||||||
|
This program and the accompanying materials are licensed and made available under
|
||||||
|
the terms and conditions of the BSD License that accompanies this distribution.
|
||||||
|
The full text of the license may be found at
|
||||||
|
http://opensource.org/licenses/bsd-license.php.
|
||||||
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||||
|
**/
|
||||||
|
|
||||||
|
#ifndef __EFI_HASH_PROTOCOL_H__
|
||||||
|
#define __EFI_HASH_PROTOCOL_H__
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
__FBSDID("$FreeBSD$");
|
||||||
|
|
||||||
|
#define CONST const
|
||||||
|
|
||||||
|
#define EFI_HASH_SERVICE_BINDING_PROTOCOL_GUID \
|
||||||
|
{ \
|
||||||
|
0x42881c98, 0xa4f3, 0x44b0, {0xa3, 0x9d, 0xdf, 0xa1, 0x86, 0x67, 0xd8, 0xcd } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_PROTOCOL_GUID \
|
||||||
|
{ \
|
||||||
|
0xc5184932, 0xdba5, 0x46db, {0xa5, 0xba, 0xcc, 0x0b, 0xda, 0x9c, 0x14, 0x35 } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORITHM_SHA1_GUID \
|
||||||
|
{ \
|
||||||
|
0x2ae9d80f, 0x3fb2, 0x4095, {0xb7, 0xb1, 0xe9, 0x31, 0x57, 0xb9, 0x46, 0xb6 } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORITHM_SHA224_GUID \
|
||||||
|
{ \
|
||||||
|
0x8df01a06, 0x9bd5, 0x4bf7, {0xb0, 0x21, 0xdb, 0x4f, 0xd9, 0xcc, 0xf4, 0x5b } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORITHM_SHA256_GUID \
|
||||||
|
{ \
|
||||||
|
0x51aa59de, 0xfdf2, 0x4ea3, {0xbc, 0x63, 0x87, 0x5f, 0xb7, 0x84, 0x2e, 0xe9 } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORITHM_SHA384_GUID \
|
||||||
|
{ \
|
||||||
|
0xefa96432, 0xde33, 0x4dd2, {0xae, 0xe6, 0x32, 0x8c, 0x33, 0xdf, 0x77, 0x7a } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORITHM_SHA512_GUID \
|
||||||
|
{ \
|
||||||
|
0xcaa4381e, 0x750c, 0x4770, {0xb8, 0x70, 0x7a, 0x23, 0xb4, 0xe4, 0x21, 0x30 } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORTIHM_MD5_GUID \
|
||||||
|
{ \
|
||||||
|
0xaf7c79c, 0x65b5, 0x4319, {0xb0, 0xae, 0x44, 0xec, 0x48, 0x4e, 0x4a, 0xd7 } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORITHM_SHA1_NOPAD_GUID \
|
||||||
|
{ \
|
||||||
|
0x24c5dc2f, 0x53e2, 0x40ca, {0x9e, 0xd6, 0xa5, 0xd9, 0xa4, 0x9f, 0x46, 0x3b } \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define EFI_HASH_ALGORITHM_SHA256_NOPAD_GUID \
|
||||||
|
{ \
|
||||||
|
0x8628752a, 0x6cb7, 0x4814, {0x96, 0xfc, 0x24, 0xa8, 0x15, 0xac, 0x22, 0x26 } \
|
||||||
|
}
|
||||||
|
|
||||||
|
//
|
||||||
|
// Note: Use of the following algorithms with EFI_HASH_PROTOCOL is deprecated.
|
||||||
|
// EFI_HASH_ALGORITHM_SHA1_GUID
|
||||||
|
// EFI_HASH_ALGORITHM_SHA224_GUID
|
||||||
|
// EFI_HASH_ALGORITHM_SHA256_GUID
|
||||||
|
// EFI_HASH_ALGORITHM_SHA384_GUID
|
||||||
|
// EFI_HASH_ALGORITHM_SHA512_GUID
|
||||||
|
// EFI_HASH_ALGORTIHM_MD5_GUID
|
||||||
|
//
|
||||||
|
|
||||||
|
typedef struct _EFI_HASH_PROTOCOL EFI_HASH_PROTOCOL;
|
||||||
|
|
||||||
|
typedef UINT8 EFI_MD5_HASH[16];
|
||||||
|
typedef UINT8 EFI_SHA1_HASH[20];
|
||||||
|
typedef UINT8 EFI_SHA224_HASH[28];
|
||||||
|
typedef UINT8 EFI_SHA256_HASH[32];
|
||||||
|
typedef UINT8 EFI_SHA384_HASH[48];
|
||||||
|
typedef UINT8 EFI_SHA512_HASH[64];
|
||||||
|
|
||||||
|
typedef union {
|
||||||
|
EFI_MD5_HASH *Md5Hash;
|
||||||
|
EFI_SHA1_HASH *Sha1Hash;
|
||||||
|
EFI_SHA224_HASH *Sha224Hash;
|
||||||
|
EFI_SHA256_HASH *Sha256Hash;
|
||||||
|
EFI_SHA384_HASH *Sha384Hash;
|
||||||
|
EFI_SHA512_HASH *Sha512Hash;
|
||||||
|
} EFI_HASH_OUTPUT;
|
||||||
|
|
||||||
|
/**
|
||||||
|
Returns the size of the hash which results from a specific algorithm.
|
||||||
|
@param[in] This Points to this instance of EFI_HASH_PROTOCOL.
|
||||||
|
@param[in] HashAlgorithm Points to the EFI_GUID which identifies the algorithm to use.
|
||||||
|
@param[out] HashSize Holds the returned size of the algorithm's hash.
|
||||||
|
@retval EFI_SUCCESS Hash size returned successfully.
|
||||||
|
@retval EFI_INVALID_PARAMETER HashSize is NULL or HashAlgorithm is NULL.
|
||||||
|
@retval EFI_UNSUPPORTED The algorithm specified by HashAlgorithm is not supported
|
||||||
|
by this driver.
|
||||||
|
**/
|
||||||
|
typedef
|
||||||
|
EFI_STATUS
|
||||||
|
(EFIAPI *EFI_HASH_GET_HASH_SIZE)(
|
||||||
|
IN CONST EFI_HASH_PROTOCOL *This,
|
||||||
|
IN CONST EFI_GUID *HashAlgorithm,
|
||||||
|
OUT UINTN *HashSize
|
||||||
|
);
|
||||||
|
|
||||||
|
/**
|
||||||
|
Creates a hash for the specified message text.
|
||||||
|
@param[in] This Points to this instance of EFI_HASH_PROTOCOL.
|
||||||
|
@param[in] HashAlgorithm Points to the EFI_GUID which identifies the algorithm to use.
|
||||||
|
@param[in] Extend Specifies whether to create a new hash (FALSE) or extend the specified
|
||||||
|
existing hash (TRUE).
|
||||||
|
@param[in] Message Points to the start of the message.
|
||||||
|
@param[in] MessageSize The size of Message, in bytes.
|
||||||
|
@param[in,out] Hash On input, if Extend is TRUE, then this parameter holds a pointer
|
||||||
|
to a pointer to an array containing the hash to extend. If Extend
|
||||||
|
is FALSE, then this parameter holds a pointer to a pointer to a
|
||||||
|
caller-allocated array that will receive the result of the hash
|
||||||
|
computation. On output (regardless of the value of Extend), the
|
||||||
|
array will contain the result of the hash computation.
|
||||||
|
@retval EFI_SUCCESS Hash returned successfully.
|
||||||
|
@retval EFI_INVALID_PARAMETER Message or Hash, HashAlgorithm is NULL or MessageSize is 0.
|
||||||
|
MessageSize is not an integer multiple of block size.
|
||||||
|
@retval EFI_UNSUPPORTED The algorithm specified by HashAlgorithm is not supported by this
|
||||||
|
driver. Or, Extend is TRUE, and the algorithm doesn't support extending the hash.
|
||||||
|
**/
|
||||||
|
typedef
|
||||||
|
EFI_STATUS
|
||||||
|
(EFIAPI *EFI_HASH_HASH)(
|
||||||
|
IN CONST EFI_HASH_PROTOCOL *This,
|
||||||
|
IN CONST EFI_GUID *HashAlgorithm,
|
||||||
|
IN BOOLEAN Extend,
|
||||||
|
IN CONST UINT8 *Message,
|
||||||
|
IN UINT64 MessageSize,
|
||||||
|
IN OUT EFI_HASH_OUTPUT *Hash
|
||||||
|
);
|
||||||
|
|
||||||
|
///
|
||||||
|
/// This protocol allows creating a hash of an arbitrary message digest
|
||||||
|
/// using one or more hash algorithms.
|
||||||
|
///
|
||||||
|
struct _EFI_HASH_PROTOCOL {
|
||||||
|
EFI_HASH_GET_HASH_SIZE GetHashSize;
|
||||||
|
EFI_HASH_HASH Hash;
|
||||||
|
};
|
||||||
|
|
||||||
|
extern EFI_GUID gEfiHashServiceBindingProtocolGuid;
|
||||||
|
extern EFI_GUID gEfiHashProtocolGuid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmSha1Guid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmSha224Guid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmSha256Guid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmSha384Guid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmSha512Guid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmMD5Guid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmSha1NoPadGuid;
|
||||||
|
extern EFI_GUID gEfiHashAlgorithmSha256NoPadGuid;
|
||||||
|
|
||||||
|
#endif
|
@ -40,6 +40,7 @@ struct stat;
|
|||||||
|
|
||||||
void ve_debug_set(int);
|
void ve_debug_set(int);
|
||||||
int ve_status_get(int);
|
int ve_status_get(int);
|
||||||
|
void ve_efi_init(void);
|
||||||
int load_manifest(const char *, const char *, const char *, struct stat *);
|
int load_manifest(const char *, const char *, const char *, struct stat *);
|
||||||
int verify_file(int, const char *, off_t, int);
|
int verify_file(int, const char *, off_t, int);
|
||||||
void verify_pcr_export(void);
|
void verify_pcr_export(void);
|
||||||
|
@ -31,8 +31,15 @@
|
|||||||
/* public api */
|
/* public api */
|
||||||
#include "libsecureboot.h"
|
#include "libsecureboot.h"
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
unsigned char *data;
|
||||||
|
size_t hash_size;
|
||||||
|
} hash_data;
|
||||||
|
|
||||||
size_t ve_trust_anchors_add(br_x509_certificate *, size_t);
|
size_t ve_trust_anchors_add(br_x509_certificate *, size_t);
|
||||||
char *fingerprint_info_lookup(int, const char *);
|
size_t ve_forbidden_anchors_add(br_x509_certificate *, size_t);
|
||||||
|
void ve_forbidden_digest_add(hash_data *digest, size_t);
|
||||||
|
char *fingerprint_info_lookup(int, const char *);
|
||||||
|
|
||||||
br_x509_certificate * parse_certificates(unsigned char *, size_t, size_t *);
|
br_x509_certificate * parse_certificates(unsigned char *, size_t, size_t *);
|
||||||
int certificate_to_trust_anchor_inner(br_x509_trust_anchor *,
|
int certificate_to_trust_anchor_inner(br_x509_trust_anchor *,
|
||||||
@ -45,4 +52,9 @@ int verify_rsa_digest(br_rsa_public_key *pkey,
|
|||||||
|
|
||||||
int openpgp_self_tests(void);
|
int openpgp_self_tests(void);
|
||||||
|
|
||||||
|
int efi_secure_boot_enabled(void);
|
||||||
|
br_x509_certificate* efi_get_trusted_certs(size_t *count);
|
||||||
|
br_x509_certificate* efi_get_forbidden_certs(size_t *count);
|
||||||
|
hash_data* efi_get_forbidden_digests(size_t *count);
|
||||||
|
|
||||||
#endif /* _LIBSECUREBOOT_PRIV_H_ */
|
#endif /* _LIBSECUREBOOT_PRIV_H_ */
|
||||||
|
@ -7,27 +7,26 @@
|
|||||||
# for each key will provide the appropriate certificate chain on request
|
# for each key will provide the appropriate certificate chain on request
|
||||||
|
|
||||||
# force these for Junos
|
# force these for Junos
|
||||||
MANIFEST_SKIP_ALWAYS= boot
|
#MANIFEST_SKIP_ALWAYS= boot
|
||||||
VE_HASH_LIST= \
|
VE_HASH_LIST= \
|
||||||
SHA1 \
|
SHA1 \
|
||||||
SHA256 \
|
SHA256 \
|
||||||
SHA384
|
SHA384 \
|
||||||
|
SHA512
|
||||||
|
|
||||||
VE_SIGNATURE_LIST= \
|
VE_SIGNATURE_LIST= \
|
||||||
ECDSA
|
ECDSA \
|
||||||
|
RSA
|
||||||
|
|
||||||
VE_SIGNATURE_EXT_LIST= \
|
VE_SIGNATURE_EXT_LIST= \
|
||||||
esig
|
esig \
|
||||||
|
rsig
|
||||||
|
|
||||||
VE_SELF_TESTS= yes
|
VE_SELF_TESTS= yes
|
||||||
|
|
||||||
.if ${MACHINE} == "host" && ${.CURDIR:T} == "tests"
|
.if ${MACHINE} == "host" && ${.CURDIR:T} == "tests"
|
||||||
# for testing
|
|
||||||
VE_HASH_LIST+= \
|
|
||||||
SHA512
|
|
||||||
|
|
||||||
VE_SIGNATURE_LIST+= \
|
VE_SIGNATURE_LIST+= \
|
||||||
RSA \
|
|
||||||
DEPRECATED_RSA_SHA1
|
DEPRECATED_RSA_SHA1
|
||||||
|
|
||||||
VE_SIGNATURE_EXT_LIST+= \
|
VE_SIGNATURE_EXT_LIST+= \
|
||||||
@ -88,7 +87,7 @@ vc_rsa.pem: rcerts.pem _2ndLAST_PEM_USE
|
|||||||
.endif
|
.endif
|
||||||
|
|
||||||
# we take the mtime of this as our baseline time
|
# we take the mtime of this as our baseline time
|
||||||
BUILD_UTC_FILE= ecerts.pem
|
#BUILD_UTC_FILE= ecerts.pem
|
||||||
#VE_DEBUG_LEVEL=3
|
#VE_DEBUG_LEVEL=3
|
||||||
#VE_VERBOSE_DEFAULT=1
|
#VE_VERBOSE_DEFAULT=1
|
||||||
|
|
||||||
@ -97,7 +96,7 @@ BUILD_UTC_FILE= ecerts.pem
|
|||||||
.if empty(TRUST_ANCHORS)
|
.if empty(TRUST_ANCHORS)
|
||||||
TRUST_ANCHORS!= cd ${.CURDIR} && 'ls' -1 *.pem t*.asc 2> /dev/null
|
TRUST_ANCHORS!= cd ${.CURDIR} && 'ls' -1 *.pem t*.asc 2> /dev/null
|
||||||
.endif
|
.endif
|
||||||
.if empty(TRUST_ANCHORS)
|
.if empty(TRUST_ANCHORS) && ${MK_LOADER_EFI_SECUREBOOT} != "yes"
|
||||||
.error Need TRUST_ANCHORS see ${.CURDIR}/README.rst
|
.error Need TRUST_ANCHORS see ${.CURDIR}/README.rst
|
||||||
.endif
|
.endif
|
||||||
.if ${TRUST_ANCHORS:T:Mt*.pem} != ""
|
.if ${TRUST_ANCHORS:T:Mt*.pem} != ""
|
||||||
|
@ -346,7 +346,7 @@ verify_file(int fd, const char *filename, off_t off, int severity)
|
|||||||
if (verbose || severity > VE_WANT) {
|
if (verbose || severity > VE_WANT) {
|
||||||
#if defined(VE_DEBUG_LEVEL) && VE_DEBUG_LEVEL > 0
|
#if defined(VE_DEBUG_LEVEL) && VE_DEBUG_LEVEL > 0
|
||||||
printf("Verified %s %llu,%llu\n", filename,
|
printf("Verified %s %llu,%llu\n", filename,
|
||||||
st.st_dev, st.st_ino);
|
(long long)st.st_dev, (long long)st.st_ino);
|
||||||
#else
|
#else
|
||||||
printf("Verified %s\n", filename);
|
printf("Verified %s\n", filename);
|
||||||
#endif
|
#endif
|
||||||
|
@ -49,8 +49,11 @@ __FBSDID("$FreeBSD$");
|
|||||||
int DebugVe = 0;
|
int DebugVe = 0;
|
||||||
|
|
||||||
typedef VECTOR(br_x509_certificate) cert_list;
|
typedef VECTOR(br_x509_certificate) cert_list;
|
||||||
|
typedef VECTOR(hash_data) digest_list;
|
||||||
|
|
||||||
static anchor_list trust_anchors = VEC_INIT;
|
static anchor_list trust_anchors = VEC_INIT;
|
||||||
|
static anchor_list forbidden_anchors = VEC_INIT;
|
||||||
|
static digest_list forbidden_digests = VEC_INIT;
|
||||||
|
|
||||||
void
|
void
|
||||||
ve_debug_set(int n)
|
ve_debug_set(int n)
|
||||||
@ -113,12 +116,75 @@ free_cert_contents(br_x509_certificate *xc)
|
|||||||
xfree(xc->data);
|
xfree(xc->data);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/* ASN parsing related defines */
|
||||||
* @brief
|
#define ASN1_PRIMITIVE_TAG 0x1F
|
||||||
* add certs to our trust store
|
#define ASN1_INF_LENGTH 0x80
|
||||||
|
#define ASN1_LENGTH_MASK 0x7F
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Get TBS part of certificate.
|
||||||
|
* Since BearSSL doesn't provide any API to do this,
|
||||||
|
* it has to be implemented here.
|
||||||
*/
|
*/
|
||||||
size_t
|
static void*
|
||||||
ve_trust_anchors_add(br_x509_certificate *xcs, size_t num)
|
X509_to_tbs(unsigned char* cert, size_t* output_size)
|
||||||
|
{
|
||||||
|
unsigned char *result;
|
||||||
|
size_t tbs_size;
|
||||||
|
int size, i;
|
||||||
|
|
||||||
|
if (cert == NULL)
|
||||||
|
return (NULL);
|
||||||
|
|
||||||
|
/* Strip two sequences to get to the TBS section */
|
||||||
|
for (i = 0; i < 2; i++) {
|
||||||
|
/*
|
||||||
|
* XXX: We don't need to support extended tags since
|
||||||
|
* they should not be present in certificates.
|
||||||
|
*/
|
||||||
|
if ((*cert & ASN1_PRIMITIVE_TAG) == ASN1_PRIMITIVE_TAG)
|
||||||
|
return (NULL);
|
||||||
|
|
||||||
|
cert++;
|
||||||
|
|
||||||
|
if (*cert == ASN1_INF_LENGTH)
|
||||||
|
return (NULL);
|
||||||
|
|
||||||
|
size = *cert & ASN1_LENGTH_MASK;
|
||||||
|
tbs_size = 0;
|
||||||
|
|
||||||
|
/* Size can either be stored on a single or multiple bytes */
|
||||||
|
if (*cert & (ASN1_LENGTH_MASK + 1)) {
|
||||||
|
cert++;
|
||||||
|
while (*cert == 0 && size > 0) {
|
||||||
|
cert++;
|
||||||
|
size--;
|
||||||
|
}
|
||||||
|
while (size-- > 0) {
|
||||||
|
tbs_size <<= 8;
|
||||||
|
tbs_size |= *(cert++);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (i == 0)
|
||||||
|
result = cert;
|
||||||
|
}
|
||||||
|
tbs_size += (cert - result);
|
||||||
|
|
||||||
|
if (output_size != NULL)
|
||||||
|
*output_size = tbs_size;
|
||||||
|
|
||||||
|
return (result);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
ve_forbidden_digest_add(hash_data *digest, size_t num)
|
||||||
|
{
|
||||||
|
while (num--)
|
||||||
|
VEC_ADD(forbidden_digests, digest[num]);
|
||||||
|
}
|
||||||
|
|
||||||
|
static size_t
|
||||||
|
ve_anchors_add(br_x509_certificate *xcs, size_t num, anchor_list *anchors)
|
||||||
{
|
{
|
||||||
br_x509_trust_anchor ta;
|
br_x509_trust_anchor ta;
|
||||||
size_t u;
|
size_t u;
|
||||||
@ -127,11 +193,27 @@ ve_trust_anchors_add(br_x509_certificate *xcs, size_t num)
|
|||||||
if (certificate_to_trust_anchor_inner(&ta, &xcs[u]) < 0) {
|
if (certificate_to_trust_anchor_inner(&ta, &xcs[u]) < 0) {
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
VEC_ADD(trust_anchors, ta);
|
VEC_ADD(*anchors, ta);
|
||||||
}
|
}
|
||||||
return (u);
|
return (u);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief
|
||||||
|
* add certs to our trust store
|
||||||
|
*/
|
||||||
|
size_t
|
||||||
|
ve_trust_anchors_add(br_x509_certificate *xcs, size_t num)
|
||||||
|
{
|
||||||
|
return (ve_anchors_add(xcs, num, &trust_anchors));
|
||||||
|
}
|
||||||
|
|
||||||
|
size_t
|
||||||
|
ve_forbidden_anchors_add(br_x509_certificate *xcs, size_t num)
|
||||||
|
{
|
||||||
|
return (ve_anchors_add(xcs, num, &forbidden_anchors));
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* @brief
|
* @brief
|
||||||
* initialize our trust_anchors from ta_PEM
|
* initialize our trust_anchors from ta_PEM
|
||||||
@ -139,13 +221,14 @@ ve_trust_anchors_add(br_x509_certificate *xcs, size_t num)
|
|||||||
int
|
int
|
||||||
ve_trust_init(void)
|
ve_trust_init(void)
|
||||||
{
|
{
|
||||||
|
#ifdef TRUST_ANCHOR_STR
|
||||||
br_x509_certificate *xcs;
|
br_x509_certificate *xcs;
|
||||||
|
#endif
|
||||||
static int once = -1;
|
static int once = -1;
|
||||||
size_t num;
|
size_t num;
|
||||||
|
|
||||||
if (once >= 0)
|
if (once >= 0)
|
||||||
return (once);
|
return (once);
|
||||||
once = 0;
|
|
||||||
|
|
||||||
ve_utc_set(time(NULL));
|
ve_utc_set(time(NULL));
|
||||||
#ifdef BUILD_UTC
|
#ifdef BUILD_UTC
|
||||||
@ -159,14 +242,12 @@ ve_trust_init(void)
|
|||||||
#ifdef TRUST_ANCHOR_STR
|
#ifdef TRUST_ANCHOR_STR
|
||||||
xcs = parse_certificates(__DECONST(unsigned char *, TRUST_ANCHOR_STR),
|
xcs = parse_certificates(__DECONST(unsigned char *, TRUST_ANCHOR_STR),
|
||||||
sizeof(TRUST_ANCHOR_STR), &num);
|
sizeof(TRUST_ANCHOR_STR), &num);
|
||||||
if (xcs == NULL)
|
if (xcs != NULL)
|
||||||
return (0);
|
num = ve_trust_anchors_add(xcs, num);
|
||||||
num = ve_trust_anchors_add(xcs, num);
|
|
||||||
once = (int) num;
|
|
||||||
#else
|
|
||||||
num = 0;
|
|
||||||
#endif
|
#endif
|
||||||
return (num);
|
once = (int) VEC_LEN(trust_anchors);
|
||||||
|
|
||||||
|
return (once);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
@ -177,7 +258,8 @@ ve_trust_init(void)
|
|||||||
static br_x509_pkey *
|
static br_x509_pkey *
|
||||||
verify_signer_xcs(br_x509_certificate *xcs,
|
verify_signer_xcs(br_x509_certificate *xcs,
|
||||||
size_t num,
|
size_t num,
|
||||||
br_name_element *elts, size_t num_elts)
|
br_name_element *elts, size_t num_elts,
|
||||||
|
anchor_list *anchors)
|
||||||
{
|
{
|
||||||
br_x509_minimal_context mc;
|
br_x509_minimal_context mc;
|
||||||
br_x509_certificate *xc;
|
br_x509_certificate *xc;
|
||||||
@ -196,11 +278,11 @@ verify_signer_xcs(br_x509_certificate *xcs,
|
|||||||
}
|
}
|
||||||
|
|
||||||
DEBUG_PRINTF(5, ("verify_signer: %zu trust anchors\n",
|
DEBUG_PRINTF(5, ("verify_signer: %zu trust anchors\n",
|
||||||
VEC_LEN(trust_anchors)));
|
VEC_LEN(*anchors)));
|
||||||
|
|
||||||
br_x509_minimal_init(&mc, &br_sha256_vtable,
|
br_x509_minimal_init(&mc, &br_sha256_vtable,
|
||||||
&VEC_ELT(trust_anchors, 0),
|
&VEC_ELT(*anchors, 0),
|
||||||
VEC_LEN(trust_anchors));
|
VEC_LEN(*anchors));
|
||||||
#ifdef VE_ECDSA_SUPPORT
|
#ifdef VE_ECDSA_SUPPORT
|
||||||
br_x509_minimal_set_ecdsa(&mc,
|
br_x509_minimal_set_ecdsa(&mc,
|
||||||
&br_ec_prime_i31, &br_ecdsa_i31_vrfy_asn1);
|
&br_ec_prime_i31, &br_ecdsa_i31_vrfy_asn1);
|
||||||
@ -255,10 +337,96 @@ verify_signer_xcs(br_x509_certificate *xcs,
|
|||||||
pk = xpkeydup(tpk);
|
pk = xpkeydup(tpk);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
VEC_CLEAREXT(chain, &free_cert_contents);
|
VEC_CLEAR(chain);
|
||||||
return (pk);
|
return (pk);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Check if digest of one of the certificates from verified chain
|
||||||
|
* is present in the forbidden database.
|
||||||
|
* Since UEFI allows to store three types of digests
|
||||||
|
* all of them have to be checked separately.
|
||||||
|
*/
|
||||||
|
static int
|
||||||
|
check_forbidden_digests(br_x509_certificate *xcs, size_t num)
|
||||||
|
{
|
||||||
|
unsigned char sha256_digest[br_sha256_SIZE];
|
||||||
|
unsigned char sha384_digest[br_sha384_SIZE];
|
||||||
|
unsigned char sha512_digest[br_sha512_SIZE];
|
||||||
|
void *tbs;
|
||||||
|
hash_data *digest;
|
||||||
|
br_hash_compat_context ctx;
|
||||||
|
const br_hash_class *md;
|
||||||
|
size_t tbs_len, i;
|
||||||
|
int have_sha256, have_sha384, have_sha512;
|
||||||
|
|
||||||
|
if (VEC_LEN(forbidden_digests) == 0)
|
||||||
|
return (0);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Iterate through certificates, extract their To-Be-Signed section,
|
||||||
|
* and compare its digest against the ones in the forbidden database.
|
||||||
|
*/
|
||||||
|
while (num--) {
|
||||||
|
tbs = X509_to_tbs(xcs[num].data, &tbs_len);
|
||||||
|
if (tbs == NULL) {
|
||||||
|
printf("Failed to obtain TBS part of certificate\n");
|
||||||
|
return (1);
|
||||||
|
}
|
||||||
|
have_sha256 = have_sha384 = have_sha512 = 0;
|
||||||
|
|
||||||
|
for (i = 0; i < VEC_LEN(forbidden_digests); i++) {
|
||||||
|
digest = &VEC_ELT(forbidden_digests, i);
|
||||||
|
switch (digest->hash_size) {
|
||||||
|
case br_sha256_SIZE:
|
||||||
|
if (!have_sha256) {
|
||||||
|
have_sha256 = 1;
|
||||||
|
md = &br_sha256_vtable;
|
||||||
|
md->init(&ctx.vtable);
|
||||||
|
md->update(&ctx.vtable, tbs, tbs_len);
|
||||||
|
md->out(&ctx.vtable, sha256_digest);
|
||||||
|
}
|
||||||
|
if (!memcmp(sha256_digest,
|
||||||
|
digest->data,
|
||||||
|
br_sha256_SIZE))
|
||||||
|
return (1);
|
||||||
|
|
||||||
|
break;
|
||||||
|
case br_sha384_SIZE:
|
||||||
|
if (!have_sha384) {
|
||||||
|
have_sha384 = 1;
|
||||||
|
md = &br_sha384_vtable;
|
||||||
|
md->init(&ctx.vtable);
|
||||||
|
md->update(&ctx.vtable, tbs, tbs_len);
|
||||||
|
md->out(&ctx.vtable, sha384_digest);
|
||||||
|
}
|
||||||
|
if (!memcmp(sha384_digest,
|
||||||
|
digest->data,
|
||||||
|
br_sha384_SIZE))
|
||||||
|
return (1);
|
||||||
|
|
||||||
|
break;
|
||||||
|
case br_sha512_SIZE:
|
||||||
|
if (!have_sha512) {
|
||||||
|
have_sha512 = 1;
|
||||||
|
md = &br_sha512_vtable;
|
||||||
|
md->init(&ctx.vtable);
|
||||||
|
md->update(&ctx.vtable, tbs, tbs_len);
|
||||||
|
md->out(&ctx.vtable, sha512_digest);
|
||||||
|
}
|
||||||
|
if (!memcmp(sha512_digest,
|
||||||
|
digest->data,
|
||||||
|
br_sha512_SIZE))
|
||||||
|
return (1);
|
||||||
|
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
static br_x509_pkey *
|
static br_x509_pkey *
|
||||||
verify_signer(const char *certs,
|
verify_signer(const char *certs,
|
||||||
br_name_element *elts, size_t num_elts)
|
br_name_element *elts, size_t num_elts)
|
||||||
@ -267,14 +435,45 @@ verify_signer(const char *certs,
|
|||||||
br_x509_pkey *pk;
|
br_x509_pkey *pk;
|
||||||
size_t num;
|
size_t num;
|
||||||
|
|
||||||
|
pk = NULL;
|
||||||
|
|
||||||
ve_trust_init();
|
ve_trust_init();
|
||||||
xcs = read_certificates(certs, &num);
|
xcs = read_certificates(certs, &num);
|
||||||
if (xcs == NULL) {
|
if (xcs == NULL) {
|
||||||
ve_error_set("cannot read certificates\n");
|
ve_error_set("cannot read certificates\n");
|
||||||
return (NULL);
|
return (NULL);
|
||||||
}
|
}
|
||||||
pk = verify_signer_xcs(xcs, num, elts, num_elts);
|
|
||||||
xfree(xcs);
|
/*
|
||||||
|
* Check if either
|
||||||
|
* 1. There is a direct match between cert from forbidden_anchors
|
||||||
|
* and a cert from chain.
|
||||||
|
* 2. CA that signed the chain is found in forbidden_anchors.
|
||||||
|
*/
|
||||||
|
if (VEC_LEN(forbidden_anchors) > 0)
|
||||||
|
pk = verify_signer_xcs(xcs, num, elts, num_elts, &forbidden_anchors);
|
||||||
|
if (pk != NULL) {
|
||||||
|
ve_error_set("Certificate is on forbidden list\n");
|
||||||
|
xfreepkey(pk);
|
||||||
|
pk = NULL;
|
||||||
|
goto out;
|
||||||
|
}
|
||||||
|
|
||||||
|
pk = verify_signer_xcs(xcs, num, elts, num_elts, &trust_anchors);
|
||||||
|
if (pk == NULL)
|
||||||
|
goto out;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Check if hash of tbs part of any certificate in chain
|
||||||
|
* is on the forbidden list.
|
||||||
|
*/
|
||||||
|
if (check_forbidden_digests(xcs, num)) {
|
||||||
|
ve_error_set("Certificate hash is on forbidden list\n");
|
||||||
|
xfreepkey(pk);
|
||||||
|
pk = NULL;
|
||||||
|
}
|
||||||
|
out:
|
||||||
|
free_certificates(xcs, num);
|
||||||
return (pk);
|
return (pk);
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -679,7 +878,8 @@ ve_self_tests(void)
|
|||||||
|
|
||||||
for (u = 0; u < num; u ++) {
|
for (u = 0; u < num; u ++) {
|
||||||
cn.len = sizeof(cn_buf);
|
cn.len = sizeof(cn_buf);
|
||||||
if ((pk = verify_signer_xcs(&xcs[u], 1, &cn, 1)) != NULL) {
|
if ((pk = verify_signer_xcs(&xcs[u], 1, &cn, 1, &trust_anchors)) != NULL) {
|
||||||
|
free_cert_contents(&xcs[u]);
|
||||||
once++;
|
once++;
|
||||||
printf("Testing verify certificate: %s\tPassed\n",
|
printf("Testing verify certificate: %s\tPassed\n",
|
||||||
cn.status ? cn_buf : "");
|
cn.status ? cn_buf : "");
|
||||||
|
@ -221,6 +221,7 @@ __DEFAULT_DEPENDENT_OPTIONS= \
|
|||||||
CLANG_FULL/CLANG \
|
CLANG_FULL/CLANG \
|
||||||
LLVM_TARGET_ALL/CLANG \
|
LLVM_TARGET_ALL/CLANG \
|
||||||
LOADER_VERIEXEC/BEARSSL \
|
LOADER_VERIEXEC/BEARSSL \
|
||||||
|
LOADER_EFI_SECUREBOOT/LOADER_VERIEXEC \
|
||||||
VERIEXEC/BEARSSL \
|
VERIEXEC/BEARSSL \
|
||||||
|
|
||||||
# MK_*_SUPPORT options which default to "yes" unless their corresponding
|
# MK_*_SUPPORT options which default to "yes" unless their corresponding
|
||||||
|
@ -81,6 +81,10 @@ HAVE_BCACHE= yes
|
|||||||
CFLAGS+= -DEFI_STAGING_SIZE=${EFI_STAGING_SIZE}
|
CFLAGS+= -DEFI_STAGING_SIZE=${EFI_STAGING_SIZE}
|
||||||
.endif
|
.endif
|
||||||
|
|
||||||
|
.if ${MK_LOADER_EFI_SECUREBOOT} != "no"
|
||||||
|
CFLAGS+= -DEFI_SECUREBOOT
|
||||||
|
.endif
|
||||||
|
|
||||||
NEWVERSWHAT= "EFI loader" ${MACHINE}
|
NEWVERSWHAT= "EFI loader" ${MACHINE}
|
||||||
VERSION_FILE= ${.CURDIR}/../loader/version
|
VERSION_FILE= ${.CURDIR}/../loader/version
|
||||||
|
|
||||||
|
@ -963,6 +963,17 @@ main(int argc, CHAR16 *argv[])
|
|||||||
*/
|
*/
|
||||||
BS->SetWatchdogTimer(0, 0, 0, NULL);
|
BS->SetWatchdogTimer(0, 0, 0, NULL);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Initialize the trusted/forbidden certificates from UEFI.
|
||||||
|
* They will be later used to verify the manifest(s),
|
||||||
|
* which should contain hashes of verified files.
|
||||||
|
* This needs to be initialized before any configuration files
|
||||||
|
* are loaded.
|
||||||
|
*/
|
||||||
|
#ifdef EFI_SECUREBOOT
|
||||||
|
ve_efi_init();
|
||||||
|
#endif
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Try and find a good currdev based on the image that was booted.
|
* Try and find a good currdev based on the image that was booted.
|
||||||
* It might be desirable here to have a short pause to allow falling
|
* It might be desirable here to have a short pause to allow falling
|
||||||
|
5
tools/build/options/WITH_LOADER_EFI_SECUREBOOT
Normal file
5
tools/build/options/WITH_LOADER_EFI_SECUREBOOT
Normal file
@ -0,0 +1,5 @@
|
|||||||
|
.\" $FreeBSD$
|
||||||
|
Enable building
|
||||||
|
.Xr loader 8
|
||||||
|
with support for verification based on certificates obtained from UEFI.
|
||||||
|
.Pp
|
Loading…
Reference in New Issue
Block a user