91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2014 The FreeBSD Foundation
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*
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* This software was developed by Edward Tomasz Napierala under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef EFISIGN_H
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#define EFISIGN_H
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#include <stdbool.h>
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#include <openssl/evp.h>
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#define DIGEST "SHA256"
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#define MAX_SECTIONS 128
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struct executable {
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const char *x_path;
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FILE *x_fp;
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char *x_buf;
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size_t x_len;
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/*
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* Set by pe_parse(), used by digest().
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*/
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size_t x_headers_len;
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off_t x_checksum_off;
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size_t x_checksum_len;
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off_t x_certificate_entry_off;
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size_t x_certificate_entry_len;
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int x_nsections;
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off_t x_section_off[MAX_SECTIONS];
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size_t x_section_len[MAX_SECTIONS];
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/*
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* Computed by digest().
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*/
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unsigned char x_digest[EVP_MAX_MD_SIZE];
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unsigned int x_digest_len;
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/*
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* Received from the parent process, which computes it in sign().
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*/
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void *x_signature;
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size_t x_signature_len;
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};
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FILE *checked_fopen(const char *path, const char *mode);
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void send_chunk(const void *buf, size_t len, int pipefd);
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void receive_chunk(void **bufp, size_t *lenp, int pipefd);
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int child(const char *inpath, const char *outpath, int pipefd,
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bool Vflag, bool vflag);
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void parse(struct executable *x);
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void update(struct executable *x);
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size_t signature_size(const struct executable *x);
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void show_certificate(const struct executable *x);
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void range_check(const struct executable *x,
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off_t off, size_t len, const char *name);
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#endif /* !EFISIGN_H */
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