include/keys/trusted-type.h

Source file repositories/reference/linux-study-clean/include/keys/trusted-type.h

File Facts

System
Linux kernel
Corpus path
include/keys/trusted-type.h
Extension
.h
Size
2410 bytes
Lines
109
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct trusted_key_payload {
	struct rcu_head rcu;
	unsigned int key_len;
	unsigned int blob_len;
	unsigned char migratable;
	unsigned char old_format;
	unsigned char key[MAX_KEY_SIZE + 1];
	unsigned char blob[MAX_BLOB_SIZE];
};

struct trusted_key_options {
	uint16_t keytype;
	uint32_t keyhandle;
	unsigned char keyauth[TPM_DIGEST_SIZE];
	uint32_t blobauth_len;
	unsigned char blobauth[TPM_DIGEST_SIZE];
	uint32_t pcrinfo_len;
	unsigned char pcrinfo[MAX_PCRINFO_SIZE];
	int pcrlock;
	uint32_t hash;
	uint32_t policydigest_len;
	unsigned char policydigest[MAX_DIGEST_SIZE];
	uint32_t policyhandle;
	void *private;
};

struct trusted_key_ops {
	/*
	 * flag to indicate if trusted key implementation supports migration
	 * or not.
	 */
	unsigned char migratable;

	/* Initialize key interface. */
	int (*init)(void);

	/* Seal a key. */
	int (*seal)(struct trusted_key_payload *p, char *datablob);

	/* Unseal a key. */
	int (*unseal)(struct trusted_key_payload *p, char *datablob);

	/* Optional: Get a randomized key. */
	int (*get_random)(unsigned char *key, size_t key_len);

	/* Exit key interface. */
	void (*exit)(void);
};

struct trusted_key_source {
	char *name;
	struct trusted_key_ops *ops;
};

extern struct key_type key_type_trusted;

#ifdef CONFIG_TRUSTED_KEYS_DEBUG
extern bool trusted_debug;

static inline void dump_payload(struct trusted_key_payload *p)
{
	if (!trusted_debug)
		return;

	pr_debug("key_len %d\n", p->key_len);
	print_hex_dump_debug("key ", DUMP_PREFIX_NONE,
			     16, 1, p->key, p->key_len, 0);
	pr_debug("bloblen %d\n", p->blob_len);
	print_hex_dump_debug("blob ", DUMP_PREFIX_NONE,
			     16, 1, p->blob, p->blob_len, 0);
	pr_debug("migratable %d\n", p->migratable);
}
#else
static inline void dump_payload(struct trusted_key_payload *p)
{
}
#endif

#endif /* _KEYS_TRUSTED_TYPE_H */

Annotation

Implementation Notes