1/*-
2 * Copyright (c) 2017-2018, Juniper Networks, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
15 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
16 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
17 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25/*
26 */
27#ifndef _LIBSECUREBOOT_H_
28#define _LIBSECUREBOOT_H_
29
30#include <sys/param.h>
31#ifdef _STANDALONE
32#include <stand.h>
33#else
34#include <sys/types.h>
35#include <sys/stat.h>
36#include <stdlib.h>
37#include <stdio.h>
38#include <unistd.h>
39#include <fcntl.h>
40#endif
41
42#include <bearssl.h>
43
44unsigned char * read_fd(int, size_t);
45#ifndef NEED_BRSSL_H
46unsigned char * read_file(const char *, size_t *);
47#endif
48
49extern int DebugVe;
50extern int VerifyFlags;
51
52#ifndef DEBUG_PRINTF
53#define DEBUG_PRINTF(n, x) if (DebugVe >= n) printf x
54#endif
55
56int ve_trust_init(void);
57size_t ve_trust_anchors_add_buf(unsigned char *, size_t);
58size_t ve_trust_anchors_revoke(unsigned char *, size_t);
59int ve_trust_add(const char *);
60void ve_debug_set(int);
61void ve_enforce_validity_set(int);
62void ve_anchor_verbose_set(int);
63int ve_anchor_verbose_get(void);
64void ve_utc_set(time_t utc);
65char *ve_error_get(void);
66int ve_error_set(const char *, ...) __printflike(1,2);
67int  ve_self_tests(void);
68
69void fingerprint_info_add(const char *, const char *, const char *,
70    const char *, struct stat *);
71
72char * hexdigest(char *, size_t, unsigned char *, size_t);
73int  verify_fd(int, const char *, off_t, struct stat *);
74int  verify_open(const char *, int);
75
76unsigned char *verify_signed(const char *, int);
77unsigned char *verify_sig(const char *, int);
78unsigned char *verify_asc(const char *, int); /* OpenPGP */
79
80void ve_pcr_init(void);
81void ve_pcr_update(const char *, unsigned char *, size_t);
82ssize_t ve_pcr_get(unsigned char *, size_t);
83int ve_pcr_updating_get(void);
84void ve_pcr_updating_set(int);
85char * ve_pcr_hashed_get(int);
86
87/* flags for verify_{asc,sig,signed} */
88#define VEF_VERBOSE		1
89
90#define VE_FINGERPRINT_OK	1
91#define VE_FINGERPRINT_IGNORE	2
92/* errors from verify_fd */
93#define VE_FINGERPRINT_NONE	-2
94#define VE_FINGERPRINT_WRONG	-3
95#define VE_FINGERPRINT_UNKNOWN	-4	/* may not be an error */
96
97#endif	/* _LIBSECUREBOOT_H_ */
98