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-rw-r--r--include/crypto/internal/hash.h245
1 files changed, 245 insertions, 0 deletions
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
new file mode 100644
index 000000000..25806141d
--- /dev/null
+++ b/include/crypto/internal/hash.h
@@ -0,0 +1,245 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Hash algorithms.
+ *
+ * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#ifndef _CRYPTO_INTERNAL_HASH_H
+#define _CRYPTO_INTERNAL_HASH_H
+
+#include <crypto/algapi.h>
+#include <crypto/hash.h>
+
+struct ahash_request;
+struct scatterlist;
+
+struct crypto_hash_walk {
+ char *data;
+
+ unsigned int offset;
+ unsigned int alignmask;
+
+ struct page *pg;
+ unsigned int entrylen;
+
+ unsigned int total;
+ struct scatterlist *sg;
+
+ unsigned int flags;
+};
+
+struct ahash_instance {
+ void (*free)(struct ahash_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct ahash_alg, halg.base)];
+ struct crypto_instance base;
+ } s;
+ struct ahash_alg alg;
+ };
+};
+
+struct shash_instance {
+ void (*free)(struct shash_instance *inst);
+ union {
+ struct {
+ char head[offsetof(struct shash_alg, base)];
+ struct crypto_instance base;
+ } s;
+ struct shash_alg alg;
+ };
+};
+
+struct crypto_ahash_spawn {
+ struct crypto_spawn base;
+};
+
+struct crypto_shash_spawn {
+ struct crypto_spawn base;
+};
+
+int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
+int crypto_hash_walk_first(struct ahash_request *req,
+ struct crypto_hash_walk *walk);
+
+static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk)
+{
+ return !(walk->entrylen | walk->total);
+}
+
+int crypto_register_ahash(struct ahash_alg *alg);
+void crypto_unregister_ahash(struct ahash_alg *alg);
+int crypto_register_ahashes(struct ahash_alg *algs, int count);
+void crypto_unregister_ahashes(struct ahash_alg *algs, int count);
+int ahash_register_instance(struct crypto_template *tmpl,
+ struct ahash_instance *inst);
+
+bool crypto_shash_alg_has_setkey(struct shash_alg *alg);
+
+static inline bool crypto_shash_alg_needs_key(struct shash_alg *alg)
+{
+ return crypto_shash_alg_has_setkey(alg) &&
+ !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY);
+}
+
+bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg);
+
+int crypto_grab_ahash(struct crypto_ahash_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct hash_alg_common *crypto_spawn_ahash_alg(
+ struct crypto_ahash_spawn *spawn)
+{
+ return __crypto_hash_alg_common(spawn->base.alg);
+}
+
+int crypto_register_shash(struct shash_alg *alg);
+void crypto_unregister_shash(struct shash_alg *alg);
+int crypto_register_shashes(struct shash_alg *algs, int count);
+void crypto_unregister_shashes(struct shash_alg *algs, int count);
+int shash_register_instance(struct crypto_template *tmpl,
+ struct shash_instance *inst);
+void shash_free_singlespawn_instance(struct shash_instance *inst);
+
+int crypto_grab_shash(struct crypto_shash_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask);
+
+static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn)
+{
+ crypto_drop_spawn(&spawn->base);
+}
+
+static inline struct shash_alg *crypto_spawn_shash_alg(
+ struct crypto_shash_spawn *spawn)
+{
+ return __crypto_shash_alg(spawn->base.alg);
+}
+
+int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
+int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
+int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
+
+int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
+
+static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
+{
+ return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+}
+
+static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg)
+{
+ return container_of(__crypto_hash_alg_common(alg), struct ahash_alg,
+ halg);
+}
+
+static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
+ unsigned int reqsize)
+{
+ tfm->reqsize = reqsize;
+}
+
+static inline struct crypto_instance *ahash_crypto_instance(
+ struct ahash_instance *inst)
+{
+ return &inst->s.base;
+}
+
+static inline struct ahash_instance *ahash_instance(
+ struct crypto_instance *inst)
+{
+ return container_of(inst, struct ahash_instance, s.base);
+}
+
+static inline struct ahash_instance *ahash_alg_instance(
+ struct crypto_ahash *ahash)
+{
+ return ahash_instance(crypto_tfm_alg_instance(&ahash->base));
+}
+
+static inline void *ahash_instance_ctx(struct ahash_instance *inst)
+{
+ return crypto_instance_ctx(ahash_crypto_instance(inst));
+}
+
+static inline void ahash_request_complete(struct ahash_request *req, int err)
+{
+ req->base.complete(&req->base, err);
+}
+
+static inline u32 ahash_request_flags(struct ahash_request *req)
+{
+ return req->base.flags;
+}
+
+static inline struct crypto_ahash *crypto_spawn_ahash(
+ struct crypto_ahash_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline int ahash_enqueue_request(struct crypto_queue *queue,
+ struct ahash_request *request)
+{
+ return crypto_enqueue_request(queue, &request->base);
+}
+
+static inline struct ahash_request *ahash_dequeue_request(
+ struct crypto_queue *queue)
+{
+ return ahash_request_cast(crypto_dequeue_request(queue));
+}
+
+static inline void *crypto_shash_ctx(struct crypto_shash *tfm)
+{
+ return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline struct crypto_instance *shash_crypto_instance(
+ struct shash_instance *inst)
+{
+ return &inst->s.base;
+}
+
+static inline struct shash_instance *shash_instance(
+ struct crypto_instance *inst)
+{
+ return container_of(inst, struct shash_instance, s.base);
+}
+
+static inline struct shash_instance *shash_alg_instance(
+ struct crypto_shash *shash)
+{
+ return shash_instance(crypto_tfm_alg_instance(&shash->base));
+}
+
+static inline void *shash_instance_ctx(struct shash_instance *inst)
+{
+ return crypto_instance_ctx(shash_crypto_instance(inst));
+}
+
+static inline struct crypto_shash *crypto_spawn_shash(
+ struct crypto_shash_spawn *spawn)
+{
+ return crypto_spawn_tfm2(&spawn->base);
+}
+
+static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm)
+{
+ return crypto_tfm_ctx_aligned(&tfm->base);
+}
+
+static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
+{
+ return container_of(tfm, struct crypto_shash, base);
+}
+
+#endif /* _CRYPTO_INTERNAL_HASH_H */
+