diff options
Diffstat (limited to 'ncr_int.h')
| -rw-r--r-- | ncr_int.h | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/ncr_int.h b/ncr_int.h index b21f6679da2..49373cae545 100644 --- a/ncr_int.h +++ b/ncr_int.h @@ -10,13 +10,26 @@ #define err() printk(KERN_DEBUG"ncr: %s: %s: %d\n", __FILE__, __func__, __LINE__) +struct ncr_pk_ctx { + ncr_algorithm_t algorithm; /* algorithm */ + ncr_algorithm_t hash; /* if hash is required is of this type */ + int type; /* libtomcrypt type */ + + struct key_item_st * key; +}; + struct session_item_st { struct list_head list; ncr_algorithm_t algo; ncr_crypto_op_t op; - struct cipher_data ctx; - struct hash_data hctx; + union { + struct cipher_data cipher; + struct hash_data hash; + struct ncr_pk_ctx pk; + } ctx; + + struct key_item_st* key; atomic_t refcnt; ncr_session_t desc; @@ -64,6 +77,7 @@ struct key_item_st { } key; atomic_t refcnt; + atomic_t writer; /* owner. The one charged with this */ uid_t uid; @@ -116,7 +130,11 @@ int ncr_key_generate_pair(struct list_sem_st* lst, void __user* arg); int ncr_key_derive(struct list_sem_st*, void __user* arg); int ncr_key_get_public(struct list_sem_st* lst, void __user* arg); -struct key_item_st* ncr_key_item_get( struct list_sem_st* lst, ncr_key_t desc); +int ncr_key_item_get_read(struct key_item_st**st, struct list_sem_st* lst, + ncr_key_t desc); +/* get key item for writing */ +int ncr_key_item_get_write( struct key_item_st** st, + struct list_sem_st* lst, ncr_key_t desc); void _ncr_key_item_put( struct key_item_st* item); typedef enum { @@ -193,4 +211,16 @@ int ncr_pk_unpack( struct key_item_st * key, const void * packed, size_t packed_ int ncr_pk_queue_init(void); void ncr_pk_queue_deinit(void); +/* encryption/decryption */ +int ncr_pk_cipher_init(ncr_algorithm_t algo, + struct ncr_pk_ctx* ctx, struct ncr_key_params_st* params, + struct key_item_st *key); +void ncr_pk_cipher_deinit(struct ncr_pk_ctx* ctx); +int ncr_pk_cipher_encrypt(const struct ncr_pk_ctx* ctx, const void* input, + size_t input_size, void* output, size_t *output_size); +int ncr_pk_cipher_decrypt(const struct ncr_pk_ctx* ctx, const void* input, + size_t input_size, void* output, size_t *output_size); + + + #endif |