1e595e65bSEdward Tomasz Napierala /*- 2*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 31aa6f9aeSEdward Tomasz Napierala * 4e595e65bSEdward Tomasz Napierala * Copyright (c) 2014 The FreeBSD Foundation 5e595e65bSEdward Tomasz Napierala * 6e595e65bSEdward Tomasz Napierala * This software was developed by Edward Tomasz Napierala under sponsorship 7e595e65bSEdward Tomasz Napierala * from the FreeBSD Foundation. 8e595e65bSEdward Tomasz Napierala * 9e595e65bSEdward Tomasz Napierala * Redistribution and use in source and binary forms, with or without 10e595e65bSEdward Tomasz Napierala * modification, are permitted provided that the following conditions 11e595e65bSEdward Tomasz Napierala * are met: 12e595e65bSEdward Tomasz Napierala * 1. Redistributions of source code must retain the above copyright 13e595e65bSEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer. 14e595e65bSEdward Tomasz Napierala * 2. Redistributions in binary form must reproduce the above copyright 15e595e65bSEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer in the 16e595e65bSEdward Tomasz Napierala * documentation and/or other materials provided with the distribution. 17e595e65bSEdward Tomasz Napierala * 18e595e65bSEdward Tomasz Napierala * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19e595e65bSEdward Tomasz Napierala * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20e595e65bSEdward Tomasz Napierala * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21e595e65bSEdward Tomasz Napierala * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22e595e65bSEdward Tomasz Napierala * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23e595e65bSEdward Tomasz Napierala * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24e595e65bSEdward Tomasz Napierala * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25e595e65bSEdward Tomasz Napierala * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26e595e65bSEdward Tomasz Napierala * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27e595e65bSEdward Tomasz Napierala * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28e595e65bSEdward Tomasz Napierala * SUCH DAMAGE. 29e595e65bSEdward Tomasz Napierala */ 30e595e65bSEdward Tomasz Napierala 31e595e65bSEdward Tomasz Napierala #ifndef EFISIGN_H 32e595e65bSEdward Tomasz Napierala #define EFISIGN_H 33e595e65bSEdward Tomasz Napierala 34e595e65bSEdward Tomasz Napierala #include <stdbool.h> 35e595e65bSEdward Tomasz Napierala #include <openssl/evp.h> 36e595e65bSEdward Tomasz Napierala 37e595e65bSEdward Tomasz Napierala #define DIGEST "SHA256" 38e595e65bSEdward Tomasz Napierala #define MAX_SECTIONS 128 39e595e65bSEdward Tomasz Napierala 40e595e65bSEdward Tomasz Napierala struct executable { 41e595e65bSEdward Tomasz Napierala const char *x_path; 42e595e65bSEdward Tomasz Napierala FILE *x_fp; 43e595e65bSEdward Tomasz Napierala 44e595e65bSEdward Tomasz Napierala char *x_buf; 45e595e65bSEdward Tomasz Napierala size_t x_len; 46e595e65bSEdward Tomasz Napierala 47e595e65bSEdward Tomasz Napierala /* 48e595e65bSEdward Tomasz Napierala * Set by pe_parse(), used by digest(). 49e595e65bSEdward Tomasz Napierala */ 50e595e65bSEdward Tomasz Napierala size_t x_headers_len; 51e595e65bSEdward Tomasz Napierala 52e595e65bSEdward Tomasz Napierala off_t x_checksum_off; 53e595e65bSEdward Tomasz Napierala size_t x_checksum_len; 54e595e65bSEdward Tomasz Napierala 55e595e65bSEdward Tomasz Napierala off_t x_certificate_entry_off; 56e595e65bSEdward Tomasz Napierala size_t x_certificate_entry_len; 57e595e65bSEdward Tomasz Napierala 58e595e65bSEdward Tomasz Napierala int x_nsections; 59e595e65bSEdward Tomasz Napierala off_t x_section_off[MAX_SECTIONS]; 60e595e65bSEdward Tomasz Napierala size_t x_section_len[MAX_SECTIONS]; 61e595e65bSEdward Tomasz Napierala 62e595e65bSEdward Tomasz Napierala /* 63e595e65bSEdward Tomasz Napierala * Computed by digest(). 64e595e65bSEdward Tomasz Napierala */ 65e595e65bSEdward Tomasz Napierala unsigned char x_digest[EVP_MAX_MD_SIZE]; 66e595e65bSEdward Tomasz Napierala unsigned int x_digest_len; 67e595e65bSEdward Tomasz Napierala 68e595e65bSEdward Tomasz Napierala /* 69e595e65bSEdward Tomasz Napierala * Received from the parent process, which computes it in sign(). 70e595e65bSEdward Tomasz Napierala */ 71e595e65bSEdward Tomasz Napierala void *x_signature; 72e595e65bSEdward Tomasz Napierala size_t x_signature_len; 73e595e65bSEdward Tomasz Napierala }; 74e595e65bSEdward Tomasz Napierala 75e595e65bSEdward Tomasz Napierala 76e595e65bSEdward Tomasz Napierala FILE *checked_fopen(const char *path, const char *mode); 77e595e65bSEdward Tomasz Napierala void send_chunk(const void *buf, size_t len, int pipefd); 78e595e65bSEdward Tomasz Napierala void receive_chunk(void **bufp, size_t *lenp, int pipefd); 79e595e65bSEdward Tomasz Napierala 80e595e65bSEdward Tomasz Napierala int child(const char *inpath, const char *outpath, int pipefd, 81e595e65bSEdward Tomasz Napierala bool Vflag, bool vflag); 82e595e65bSEdward Tomasz Napierala 83e595e65bSEdward Tomasz Napierala void parse(struct executable *x); 84e595e65bSEdward Tomasz Napierala void update(struct executable *x); 85e595e65bSEdward Tomasz Napierala size_t signature_size(const struct executable *x); 86e595e65bSEdward Tomasz Napierala void show_certificate(const struct executable *x); 87e595e65bSEdward Tomasz Napierala void range_check(const struct executable *x, 88e595e65bSEdward Tomasz Napierala off_t off, size_t len, const char *name); 89e595e65bSEdward Tomasz Napierala 90e595e65bSEdward Tomasz Napierala #endif /* !EFISIGN_H */ 91