opnsense-src/lib/libsecureboot/h/verify_file.h
Marcin Wojtas 13ea0450a9 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
2019-03-06 06:39:42 +00:00

48 lines
2.1 KiB
C

/*-
* Copyright (c) 2017-2018, Juniper Networks, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _VERIFY_FILE_H_
#define _VERIFY_FILE_H_
#define VE_GUESS -1 /* let verify_file work it out */
#define VE_TRY 0 /* we don't mind if unverified */
#define VE_WANT 1 /* we want this verified */
#define VE_MUST 2 /* this must be verified */
#define VE_VERIFIED 1 /* all good */
#define VE_UNVERIFIED_OK 0 /* not verified but that's ok */
#define VE_NOT_VERIFYING 2 /* we are not verifying */
struct stat;
void ve_debug_set(int);
int ve_status_get(int);
void ve_efi_init(void);
int load_manifest(const char *, const char *, const char *, struct stat *);
int verify_file(int, const char *, off_t, int);
void verify_pcr_export(void);
#endif /* _VERIFY_FILE_H_ */