1 files changed, 118 insertions, 32 deletions

diff --git a/include/crypto/internal/aead.h b/include/crypto/internal/aead.h
index 2eba340230a7..28a95eb3182d 100644
--- a/include/crypto/internal/aead.h
+++ b/include/crypto/internal/aead.h
@@ -1,13 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * AEAD: Authenticated Encryption with Associated Data
  * 
- * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
- * any later version.
- *
+ * Copyright (c) 2007-2015 Herbert Xu <herbert@gondor.apana.org.au>
  */
 
 #ifndef _CRYPTO_INTERNAL_AEAD_H
@@ -15,68 +10,159 @@
 
 #include <crypto/aead.h>
 #include <crypto/algapi.h>
+#include <linux/stddef.h>
 #include <linux/types.h>
 
 struct rtattr;
 
+struct aead_instance {
+	void (*free)(struct aead_instance *inst);
+	union {
+		struct {
+			char head[offsetof(struct aead_alg, base)];
+			struct crypto_instance base;
+		} s;
+		struct aead_alg alg;
+	};
+};
+
 struct crypto_aead_spawn {
 	struct crypto_spawn base;
 };
 
-extern const struct crypto_type crypto_nivaead_type;
+struct aead_queue {
+	struct crypto_queue base;
+};
+
+static inline void *crypto_aead_ctx(struct crypto_aead *tfm)
+{
+	return crypto_tfm_ctx(&tfm->base);
+}
 
-static inline void crypto_set_aead_spawn(
-	struct crypto_aead_spawn *spawn, struct crypto_instance *inst)
+static inline void *crypto_aead_ctx_dma(struct crypto_aead *tfm)
 {
-	crypto_set_spawn(&spawn->base, inst);
+	return crypto_tfm_ctx_dma(&tfm->base);
 }
 
-struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask);
+static inline struct crypto_instance *aead_crypto_instance(
+	struct aead_instance *inst)
+{
+	return container_of(&inst->alg.base, struct crypto_instance, alg);
+}
 
-int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,
-		     u32 type, u32 mask);
+static inline struct aead_instance *aead_instance(struct crypto_instance *inst)
+{
+	return container_of(&inst->alg, struct aead_instance, alg.base);
+}
+
+static inline struct aead_instance *aead_alg_instance(struct crypto_aead *aead)
+{
+	return aead_instance(crypto_tfm_alg_instance(&aead->base));
+}
+
+static inline void *aead_instance_ctx(struct aead_instance *inst)
+{
+	return crypto_instance_ctx(aead_crypto_instance(inst));
+}
+
+static inline void *aead_request_ctx(struct aead_request *req)
+{
+	return req->__ctx;
+}
+
+static inline void *aead_request_ctx_dma(struct aead_request *req)
+{
+	unsigned int align = crypto_dma_align();
+
+	if (align <= crypto_tfm_ctx_alignment())
+		align = 1;
+
+	return PTR_ALIGN(aead_request_ctx(req), align);
+}
+
+static inline void aead_request_complete(struct aead_request *req, int err)
+{
+	crypto_request_complete(&req->base, err);
+}
+
+static inline u32 aead_request_flags(struct aead_request *req)
+{
+	return req->base.flags;
+}
+
+static inline struct aead_request *aead_request_cast(
+	struct crypto_async_request *req)
+{
+	return container_of(req, struct aead_request, base);
+}
+
+int crypto_grab_aead(struct crypto_aead_spawn *spawn,
+		     struct crypto_instance *inst,
+		     const char *name, u32 type, u32 mask);
 
 static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
 {
 	crypto_drop_spawn(&spawn->base);
 }
 
-static inline struct crypto_alg *crypto_aead_spawn_alg(
+static inline struct aead_alg *crypto_spawn_aead_alg(
 	struct crypto_aead_spawn *spawn)
 {
-	return spawn->base.alg;
+	return container_of(spawn->base.alg, struct aead_alg, base);
 }
 
 static inline struct crypto_aead *crypto_spawn_aead(
 	struct crypto_aead_spawn *spawn)
 {
-	return __crypto_aead_cast(
-		crypto_spawn_tfm(&spawn->base, CRYPTO_ALG_TYPE_AEAD,
-				 CRYPTO_ALG_TYPE_MASK));
+	return crypto_spawn_tfm2(&spawn->base);
 }
 
-struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,
-					 struct rtattr **tb, u32 type,
-					 u32 mask);
-void aead_geniv_free(struct crypto_instance *inst);
-int aead_geniv_init(struct crypto_tfm *tfm);
-void aead_geniv_exit(struct crypto_tfm *tfm);
+static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,
+					   unsigned int reqsize)
+{
+	aead->reqsize = reqsize;
+}
 
-static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv)
+static inline void crypto_aead_set_reqsize_dma(struct crypto_aead *aead,
+					       unsigned int reqsize)
 {
-	return crypto_aead_crt(geniv)->base;
+	reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);
+	aead->reqsize = reqsize;
 }
 
-static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req)
+static inline void aead_init_queue(struct aead_queue *queue,
+				   unsigned int max_qlen)
 {
-	return aead_request_ctx(&req->areq);
+	crypto_init_queue(&queue->base, max_qlen);
 }
 
-static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
-					  int err)
+static inline unsigned int crypto_aead_alg_chunksize(struct aead_alg *alg)
 {
-	aead_request_complete(&req->areq, err);
+	return alg->chunksize;
 }
 
+/**
+ * crypto_aead_chunksize() - obtain chunk size
+ * @tfm: cipher handle
+ *
+ * The block size is set to one for ciphers such as CCM.  However,
+ * you still need to provide incremental updates in multiples of
+ * the underlying block size as the IV does not have sub-block
+ * granularity.  This is known in this API as the chunk size.
+ *
+ * Return: chunk size in bytes
+ */
+static inline unsigned int crypto_aead_chunksize(struct crypto_aead *tfm)
+{
+	return crypto_aead_alg_chunksize(crypto_aead_alg(tfm));
+}
+
+int crypto_register_aead(struct aead_alg *alg);
+void crypto_unregister_aead(struct aead_alg *alg);
+int crypto_register_aeads(struct aead_alg *algs, int count);
+void crypto_unregister_aeads(struct aead_alg *algs, int count);
+int aead_register_instance(struct crypto_template *tmpl,
+			   struct aead_instance *inst);
+
 #endif	/* _CRYPTO_INTERNAL_AEAD_H */