1/*-
2 * Copyright (c) 2014 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Edward Tomasz Napierala under sponsorship
6 * from the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: releng/11.0/usr.sbin/uefisign/uefisign.h 279315 2015-02-26 09:15:24Z trasz $
30 */
31
32#ifndef EFISIGN_H
33#define	EFISIGN_H
34
35#include <stdbool.h>
36#include <openssl/evp.h>
37
38#define	DIGEST		"SHA256"
39#define	MAX_SECTIONS	128
40
41struct executable {
42	const char	*x_path;
43	FILE		*x_fp;
44
45	char		*x_buf;
46	size_t		x_len;
47
48	/*
49	 * Set by pe_parse(), used by digest().
50	 */
51	size_t		x_headers_len;
52
53	off_t		x_checksum_off;
54	size_t		x_checksum_len;
55
56	off_t		x_certificate_entry_off;
57	size_t		x_certificate_entry_len;
58
59	int		x_nsections;
60	off_t		x_section_off[MAX_SECTIONS];
61	size_t		x_section_len[MAX_SECTIONS];
62
63	/*
64	 * Computed by digest().
65	 */
66	unsigned char	x_digest[EVP_MAX_MD_SIZE];
67	unsigned int	x_digest_len;
68
69	/*
70	 * Received from the parent process, which computes it in sign().
71	 */
72	void		*x_signature;
73	size_t		x_signature_len;
74};
75
76
77FILE	*checked_fopen(const char *path, const char *mode);
78void	send_chunk(const void *buf, size_t len, int pipefd);
79void	receive_chunk(void **bufp, size_t *lenp, int pipefd);
80
81int	child(const char *inpath, const char *outpath, int pipefd,
82	    bool Vflag, bool vflag);
83
84void	parse(struct executable *x);
85void	update(struct executable *x);
86size_t	signature_size(const struct executable *x);
87void	show_certificate(const struct executable *x);
88void	range_check(const struct executable *x,
89	    off_t off, size_t len, const char *name);
90
91#endif /* !EFISIGN_H */
92