drivers/md/dm-verity-verify-sig.h

Source file repositories/reference/linux-study-clean/drivers/md/dm-verity-verify-sig.h

File Facts

System
Linux kernel
Corpus path
drivers/md/dm-verity-verify-sig.h
Extension
.h
Size
1854 bytes
Lines
73
Domain
Driver Families
Bucket
drivers/md
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

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);

int __init dm_verity_verify_sig_init(void);
void dm_verity_verify_sig_exit(void);

#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)
{
}

static inline int dm_verity_verify_sig_init(void)
{
	return 0;
}

static inline void dm_verity_verify_sig_exit(void)
{
}

#endif /* CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG */
#endif /* DM_VERITY_SIG_VERIFICATION_H */

Annotation

Implementation Notes