sbsigntools/image.h
Jeremy Kerr 376974e386 image: Unconditionally parse PE/COFF data
Rather than requiring an explicit image_pecoff_parse, do it
unconditionally in image_load. We don't have any instances where we need
to do this separately.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
2012-06-13 17:39:34 +08:00

86 lines
2.1 KiB
C

/*
* Copyright (C) 2012 Jeremy Kerr <jeremy.kerr@canonical.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#ifndef IMAGE_H
#define IMAGE_H
#include <stdint.h>
#include <bfd.h>
#define DO_NOT_DEFINE_LINENO
#include "coff/x86_64.h"
#include "coff/external.h"
#include "coff/pe.h"
struct region {
void *data;
int size;
char *name;
};
struct image {
int fd;
void *buf;
size_t size;
/* Pointers to interesting parts of the image */
uint32_t *checksum;
struct external_PEI_DOS_hdr *doshdr;
struct external_PEI_IMAGE_hdr *pehdr;
PEPAOUTHDR *aouthdr;
struct data_dir_entry *data_dir;
struct data_dir_entry *data_dir_sigtable;
struct external_scnhdr *scnhdr;
int sections;
void *cert_table;
int cert_table_size;
/* Regions that are included in the image hash: populated
* during image parsing, then used during the hash process.
*/
struct region *checksum_regions;
int n_checksum_regions;
/* Generated signature */
void *sigbuf;
size_t sigsize;
};
struct data_dir_entry {
uint32_t addr;
uint32_t size;
} __attribute__((packed));
struct cert_table_header {
uint32_t size;
uint16_t revision;
uint16_t type;
} __attribute__((packed));
struct image *image_load(const char *filename);
int image_find_regions(struct image *image);
int image_hash_sha256(struct image *image, uint8_t digest[]);
int image_write(struct image *image, const char *filename);
int image_write_detached(struct image *image, const char *filename);
#endif /* IMAGE_H */