1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2014 The FreeBSD Foundation
5 * All rights reserved.
6 *
7 * This software was developed by Edward Tomasz Napierala under sponsorship
8 * from the FreeBSD Foundation.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD: stable/11/usr.sbin/uefisign/uefisign.h 332615 2018-04-16 17:13:54Z trasz $
32 */
33
34#ifndef EFISIGN_H
35#define	EFISIGN_H
36
37#include <stdbool.h>
38#include <openssl/evp.h>
39
40#define	DIGEST		"SHA256"
41#define	MAX_SECTIONS	128
42
43struct executable {
44	const char	*x_path;
45	FILE		*x_fp;
46
47	char		*x_buf;
48	size_t		x_len;
49
50	/*
51	 * Set by pe_parse(), used by digest().
52	 */
53	size_t		x_headers_len;
54
55	off_t		x_checksum_off;
56	size_t		x_checksum_len;
57
58	off_t		x_certificate_entry_off;
59	size_t		x_certificate_entry_len;
60
61	int		x_nsections;
62	off_t		x_section_off[MAX_SECTIONS];
63	size_t		x_section_len[MAX_SECTIONS];
64
65	/*
66	 * Computed by digest().
67	 */
68	unsigned char	x_digest[EVP_MAX_MD_SIZE];
69	unsigned int	x_digest_len;
70
71	/*
72	 * Received from the parent process, which computes it in sign().
73	 */
74	void		*x_signature;
75	size_t		x_signature_len;
76};
77
78
79FILE	*checked_fopen(const char *path, const char *mode);
80void	send_chunk(const void *buf, size_t len, int pipefd);
81void	receive_chunk(void **bufp, size_t *lenp, int pipefd);
82
83int	child(const char *inpath, const char *outpath, int pipefd,
84	    bool Vflag, bool vflag);
85
86void	parse(struct executable *x);
87void	update(struct executable *x);
88size_t	signature_size(const struct executable *x);
89void	show_certificate(const struct executable *x);
90void	range_check(const struct executable *x,
91	    off_t off, size_t len, const char *name);
92
93#endif /* !EFISIGN_H */
94