linux/drivers/md/dm-verity-verify-sig.h
Heinz Mauelshagen 3bd9400307 dm: add missing SPDX-License-Indentifiers
'GPL-2.0-only' is used instead of 'GPL-2.0' because SPDX has
deprecated its use.

Suggested-by: John Wiele <jwiele@redhat.com>
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2023-02-14 14:23:06 -05:00

61 lines
1.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2019 Microsoft Corporation.
*
* Author: Jaskaran Singh Khurana <jaskarankhurana@linux.microsoft.com>
*
*/
#ifndef DM_VERITY_SIG_VERIFICATION_H
#define DM_VERITY_SIG_VERIFICATION_H
#define DM_VERITY_ROOT_HASH_VERIFICATION "DM Verity Sig Verification"
#define DM_VERITY_ROOT_HASH_VERIFICATION_OPT_SIG_KEY "root_hash_sig_key_desc"
struct dm_verity_sig_opts {
unsigned int sig_size;
u8 *sig;
};
#ifdef CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG
#define DM_VERITY_ROOT_HASH_VERIFICATION_OPTS 2
int verity_verify_root_hash(const void *data, size_t data_len,
const void *sig_data, size_t sig_len);
bool verity_verify_is_sig_opt_arg(const char *arg_name);
int verity_verify_sig_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v,
struct dm_verity_sig_opts *sig_opts,
unsigned int *argc, const char *arg_name);
void verity_verify_sig_opts_cleanup(struct dm_verity_sig_opts *sig_opts);
#else
#define DM_VERITY_ROOT_HASH_VERIFICATION_OPTS 0
static inline int verity_verify_root_hash(const void *data, size_t data_len,
const void *sig_data, size_t sig_len)
{
return 0;
}
static inline bool verity_verify_is_sig_opt_arg(const char *arg_name)
{
return false;
}
static inline int verity_verify_sig_parse_opt_args(struct dm_arg_set *as,
struct dm_verity *v, struct dm_verity_sig_opts *sig_opts,
unsigned int *argc, const char *arg_name)
{
return -EINVAL;
}
static inline void verity_verify_sig_opts_cleanup(struct dm_verity_sig_opts *sig_opts)
{
}
#endif /* CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG */
#endif /* DM_VERITY_SIG_VERIFICATION_H */