#define _CRYPTO_ALGAPI_H
#include <linux/crypto.h>
+#include <linux/list.h>
+#include <linux/kernel.h>
struct module;
+struct rtattr;
struct seq_file;
struct crypto_type {
unsigned int (*ctxsize)(struct crypto_alg *alg, u32 type, u32 mask);
+ unsigned int (*extsize)(struct crypto_alg *alg,
+ const struct crypto_type *frontend);
int (*init)(struct crypto_tfm *tfm, u32 type, u32 mask);
- void (*exit)(struct crypto_tfm *tfm);
+ int (*init_tfm)(struct crypto_tfm *tfm,
+ const struct crypto_type *frontend);
void (*show)(struct seq_file *m, struct crypto_alg *alg);
+ struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask);
+
+ unsigned int type;
+ unsigned int maskclear;
+ unsigned int maskset;
+ unsigned int tfmsize;
};
struct crypto_instance {
struct hlist_head instances;
struct module *module;
- struct crypto_instance *(*alloc)(void *param, unsigned int len);
+ struct crypto_instance *(*alloc)(struct rtattr **tb);
void (*free)(struct crypto_instance *inst);
char name[CRYPTO_MAX_ALG_NAME];
struct list_head list;
struct crypto_alg *alg;
struct crypto_instance *inst;
+ u32 mask;
+};
+
+struct crypto_queue {
+ struct list_head list;
+ struct list_head *backlog;
+
+ unsigned int qlen;
+ unsigned int max_qlen;
};
struct scatter_walk {
u8 *iv;
int flags;
+ unsigned int blocksize;
};
+extern const struct crypto_type crypto_ablkcipher_type;
+extern const struct crypto_type crypto_aead_type;
extern const struct crypto_type crypto_blkcipher_type;
extern const struct crypto_type crypto_hash_type;
struct crypto_template *crypto_lookup_template(const char *name);
int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
- struct crypto_instance *inst);
+ struct crypto_instance *inst, u32 mask);
void crypto_drop_spawn(struct crypto_spawn *spawn);
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
u32 mask);
-struct crypto_alg *crypto_get_attr_alg(void *param, unsigned int len,
- u32 type, u32 mask);
+static inline void crypto_set_spawn(struct crypto_spawn *spawn,
+ struct crypto_instance *inst)
+{
+ spawn->inst = inst;
+}
+
+struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
+int crypto_check_attr_type(struct rtattr **tb, u32 type);
+const char *crypto_attr_alg_name(struct rtattr *rta);
+struct crypto_alg *crypto_attr_alg(struct rtattr *rta, u32 type, u32 mask);
+int crypto_attr_u32(struct rtattr *rta, u32 *num);
struct crypto_instance *crypto_alloc_instance(const char *name,
struct crypto_alg *alg);
+void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen);
+int crypto_enqueue_request(struct crypto_queue *queue,
+ struct crypto_async_request *request);
+struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue);
+int crypto_tfm_in_queue(struct crypto_queue *queue, struct crypto_tfm *tfm);
+
+/* These functions require the input/output to be aligned as u32. */
+void crypto_inc(u8 *a, unsigned int size);
+void crypto_xor(u8 *dst, const u8 *src, unsigned int size);
+
int blkcipher_walk_done(struct blkcipher_desc *desc,
struct blkcipher_walk *walk, int err);
int blkcipher_walk_virt(struct blkcipher_desc *desc,
struct blkcipher_walk *walk);
int blkcipher_walk_phys(struct blkcipher_desc *desc,
struct blkcipher_walk *walk);
+int blkcipher_walk_virt_block(struct blkcipher_desc *desc,
+ struct blkcipher_walk *walk,
+ unsigned int blocksize);
static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
{
return (void *)ALIGN(addr, align);
}
+static inline struct crypto_instance *crypto_tfm_alg_instance(
+ struct crypto_tfm *tfm)
+{
+ return container_of(tfm->__crt_alg, struct crypto_instance, alg);
+}
+
static inline void *crypto_instance_ctx(struct crypto_instance *inst)
{
return inst->__ctx;
}
+static inline struct ablkcipher_alg *crypto_ablkcipher_alg(
+ struct crypto_ablkcipher *tfm)
+{
+ return &crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_ablkcipher;
+}
+
+static inline void *crypto_ablkcipher_ctx(struct crypto_ablkcipher *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline void *crypto_ablkcipher_ctx_aligned(struct crypto_ablkcipher *tfm)
+{
+ return crypto_tfm_ctx_aligned(&tfm->base);
+}
+
+static inline struct aead_alg *crypto_aead_alg(struct crypto_aead *tfm)
+{
+ return &crypto_aead_tfm(tfm)->__crt_alg->cra_aead;
+}
+
+static inline void *crypto_aead_ctx(struct crypto_aead *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline struct crypto_instance *crypto_aead_alg_instance(
+ struct crypto_aead *aead)
+{
+ return crypto_tfm_alg_instance(&aead->base);
+}
+
+static inline struct crypto_blkcipher *crypto_spawn_blkcipher(
+ struct crypto_spawn *spawn)
+{
+ u32 type = CRYPTO_ALG_TYPE_BLKCIPHER;
+ u32 mask = CRYPTO_ALG_TYPE_MASK;
+
+ return __crypto_blkcipher_cast(crypto_spawn_tfm(spawn, type, mask));
+}
+
static inline void *crypto_blkcipher_ctx(struct crypto_blkcipher *tfm)
{
return crypto_tfm_ctx(&tfm->base);
return __crypto_hash_cast(crypto_spawn_tfm(spawn, type, mask));
}
+static inline void *crypto_hash_ctx(struct crypto_hash *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
static inline void *crypto_hash_ctx_aligned(struct crypto_hash *tfm)
{
return crypto_tfm_ctx_aligned(&tfm->base);
walk->total = nbytes;
}
+static inline struct crypto_async_request *crypto_get_backlog(
+ struct crypto_queue *queue)
+{
+ return queue->backlog == &queue->list ? NULL :
+ container_of(queue->backlog, struct crypto_async_request, list);
+}
+
+static inline int ablkcipher_enqueue_request(struct crypto_queue *queue,
+ struct ablkcipher_request *request)
+{
+ return crypto_enqueue_request(queue, &request->base);
+}
+
+static inline struct ablkcipher_request *ablkcipher_dequeue_request(
+ struct crypto_queue *queue)
+{
+ return ablkcipher_request_cast(crypto_dequeue_request(queue));
+}
+
+static inline void *ablkcipher_request_ctx(struct ablkcipher_request *req)
+{
+ return req->__ctx;
+}
+
+static inline int ablkcipher_tfm_in_queue(struct crypto_queue *queue,
+ struct crypto_ablkcipher *tfm)
+{
+ return crypto_tfm_in_queue(queue, crypto_ablkcipher_tfm(tfm));
+}
+
+static inline void *aead_request_ctx(struct aead_request *req)
+{
+ return req->__ctx;
+}
+
+static inline void aead_request_complete(struct aead_request *req, int err)
+{
+ req->base.complete(&req->base, err);
+}
+
+static inline u32 aead_request_flags(struct aead_request *req)
+{
+ return req->base.flags;
+}
+
+static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb,
+ u32 type, u32 mask)
+{
+ return crypto_attr_alg(tb[1], type, mask);
+}
+
+/*
+ * Returns CRYPTO_ALG_ASYNC if type/mask requires the use of sync algorithms.
+ * Otherwise returns zero.
+ */
+static inline int crypto_requires_sync(u32 type, u32 mask)
+{
+ return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
+}
+
#endif /* _CRYPTO_ALGAPI_H */