blob: c74dd708e355e29cf5e0f595eaa7ab34cea1e905 [file] [log] [blame]
* This file is part of the coreboot project.
* Copyright 2015 Google Inc.
* 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; version 2 of the License.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
#include <commonlib/cbfs_serialized.h>
#include <commonlib/region.h>
/* TODO: remove me! This is for vboot_handoff.c's benefit. */
#include <vb2_api.h>
/* Object representing cbfs files. */
struct cbfsf {
struct region_device metadata;
struct region_device data;
/* Locate file by name and optional type. Returns 0 on succcess else < 0 on
* error.*/
int cbfs_locate(struct cbfsf *fh, const struct region_device *cbfs,
const char *name, uint32_t *type);
static inline void cbfs_file_data(struct region_device *data,
const struct cbfsf *file)
rdev_chain(data, &file->data, 0, region_device_sz(&file->data));
static inline void cbfs_file_metadata(struct region_device *metadata,
const struct cbfsf *file)
rdev_chain(metadata, &file->metadata, 0,
* Provide a handle to each cbfs file within a cbfs. The prev pointer represents
* the previous file (NULL on first invocation). The next object gets filled
* out with the next file. This returns < 0 on error, 0 on finding the next
* file, and > 0 at end of cbfs.
int cbfs_for_each_file(const struct region_device *cbfs,
const struct cbfsf *prev, struct cbfsf *fh);
* Perform the vb2 hash over the CBFS region skipping empty file contents.
* Caller is responsible for providing the hash algorithm as well as storage
* for the final digest. Return 0 on success or non-zero on error.
int cbfs_vb2_hash_contents(const struct region_device *cbfs,
enum vb2_hash_algorithm hash_alg, void *digest,
size_t digest_sz);