2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2014 The FreeBSD Foundation
6 * This software was developed by Edward Tomasz Napierala under sponsorship
7 * from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <openssl/evp.h>
37 #define DIGEST "SHA256"
38 #define MAX_SECTIONS 128
48 * Set by pe_parse(), used by digest().
53 size_t x_checksum_len;
55 off_t x_certificate_entry_off;
56 size_t x_certificate_entry_len;
59 off_t x_section_off[MAX_SECTIONS];
60 size_t x_section_len[MAX_SECTIONS];
63 * Computed by digest().
65 unsigned char x_digest[EVP_MAX_MD_SIZE];
66 unsigned int x_digest_len;
69 * Received from the parent process, which computes it in sign().
72 size_t x_signature_len;
76 FILE *checked_fopen(const char *path, const char *mode);
77 void send_chunk(const void *buf, size_t len, int pipefd);
78 void receive_chunk(void **bufp, size_t *lenp, int pipefd);
80 int child(const char *inpath, const char *outpath, int pipefd,
81 bool Vflag, bool vflag);
83 void parse(struct executable *x);
84 void update(struct executable *x);
85 size_t signature_size(const struct executable *x);
86 void show_certificate(const struct executable *x);
87 void range_check(const struct executable *x,
88 off_t off, size_t len, const char *name);
90 #endif /* !EFISIGN_H */