1 files changed, 0 insertions, 205 deletions
diff --git a/arch/x86/crypto/morus1280_glue.c b/arch/x86/crypto/morus1280_glue.c
deleted file mode 100644
index ffbde8b22838..000000000000
--- a/arch/x86/crypto/morus1280_glue.c
+++ /dev/null
@@ -1,205 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * The MORUS-1280 Authenticated-Encryption Algorithm
- *   Common x86 SIMD glue skeleton
- *
- * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
- * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
- */
-
-#include <crypto/internal/aead.h>
-#include <crypto/internal/skcipher.h>
-#include <crypto/morus1280_glue.h>
-#include <crypto/scatterwalk.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/scatterlist.h>
-#include <asm/fpu/api.h>
-
-struct morus1280_state {
-	struct morus1280_block s[MORUS_STATE_BLOCKS];
-};
-
-struct morus1280_ops {
-	int (*skcipher_walk_init)(struct skcipher_walk *walk,
-				  struct aead_request *req, bool atomic);
-
-	void (*crypt_blocks)(void *state, const void *src, void *dst,
-			     unsigned int length);
-	void (*crypt_tail)(void *state, const void *src, void *dst,
-			   unsigned int length);
-};
-
-static void crypto_morus1280_glue_process_ad(
-		struct morus1280_state *state,
-		const struct morus1280_glue_ops *ops,
-		struct scatterlist *sg_src, unsigned int assoclen)
-{
-	struct scatter_walk walk;
-	struct morus1280_block buf;
-	unsigned int pos = 0;
-
-	scatterwalk_start(&walk, sg_src);
-	while (assoclen != 0) {
-		unsigned int size = scatterwalk_clamp(&walk, assoclen);
-		unsigned int left = size;
-		void *mapped = scatterwalk_map(&walk);
-		const u8 *src = (const u8 *)mapped;
-
-		if (pos + size >= MORUS1280_BLOCK_SIZE) {
-			if (pos > 0) {
-				unsigned int fill = MORUS1280_BLOCK_SIZE - pos;
-				memcpy(buf.bytes + pos, src, fill);
-				ops->ad(state, buf.bytes, MORUS1280_BLOCK_SIZE);
-				pos = 0;
-				left -= fill;
-				src += fill;
-			}
-
-			ops->ad(state, src, left);
-			src += left & ~(MORUS1280_BLOCK_SIZE - 1);
-			left &= MORUS1280_BLOCK_SIZE - 1;
-		}
-
-		memcpy(buf.bytes + pos, src, left);
-
-		pos += left;
-		assoclen -= size;
-		scatterwalk_unmap(mapped);
-		scatterwalk_advance(&walk, size);
-		scatterwalk_done(&walk, 0, assoclen);
-	}
-
-	if (pos > 0) {
-		memset(buf.bytes + pos, 0, MORUS1280_BLOCK_SIZE - pos);
-		ops->ad(state, buf.bytes, MORUS1280_BLOCK_SIZE);
-	}
-}
-
-static void crypto_morus1280_glue_process_crypt(struct morus1280_state *state,
-						struct morus1280_ops ops,
-						struct skcipher_walk *walk)
-{
-	while (walk->nbytes >= MORUS1280_BLOCK_SIZE) {
-		ops.crypt_blocks(state, walk->src.virt.addr,
-				 walk->dst.virt.addr,
-				 round_down(walk->nbytes,
-					    MORUS1280_BLOCK_SIZE));
-		skcipher_walk_done(walk, walk->nbytes % MORUS1280_BLOCK_SIZE);
-	}
-
-	if (walk->nbytes) {
-		ops.crypt_tail(state, walk->src.virt.addr, walk->dst.virt.addr,
-			       walk->nbytes);
-		skcipher_walk_done(walk, 0);
-	}
-}
-
-int crypto_morus1280_glue_setkey(struct crypto_aead *aead, const u8 *key,
-				 unsigned int keylen)
-{
-	struct morus1280_ctx *ctx = crypto_aead_ctx(aead);
-
-	if (keylen == MORUS1280_BLOCK_SIZE) {
-		memcpy(ctx->key.bytes, key, MORUS1280_BLOCK_SIZE);
-	} else if (keylen == MORUS1280_BLOCK_SIZE / 2) {
-		memcpy(ctx->key.bytes, key, keylen);
-		memcpy(ctx->key.bytes + keylen, key, keylen);
-	} else {
-		crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(crypto_morus1280_glue_setkey);
-
-int crypto_morus1280_glue_setauthsize(struct crypto_aead *tfm,
-				      unsigned int authsize)
-{
-	return (authsize <= MORUS_MAX_AUTH_SIZE) ? 0 : -EINVAL;
-}
-EXPORT_SYMBOL_GPL(crypto_morus1280_glue_setauthsize);
-
-static void crypto_morus1280_glue_crypt(struct aead_request *req,
-					struct morus1280_ops ops,
-					unsigned int cryptlen,
-					struct morus1280_block *tag_xor)
-{
-	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct morus1280_ctx *ctx = crypto_aead_ctx(tfm);
-	struct morus1280_state state;
-	struct skcipher_walk walk;
-
-	ops.skcipher_walk_init(&walk, req, true);
-
-	kernel_fpu_begin();
-
-	ctx->ops->init(&state, &ctx->key, req->iv);
-	crypto_morus1280_glue_process_ad(&state, ctx->ops, req->src, req->assoclen);
-	crypto_morus1280_glue_process_crypt(&state, ops, &walk);
-	ctx->ops->final(&state, tag_xor, req->assoclen, cryptlen);
-
-	kernel_fpu_end();
-}
-
-int crypto_morus1280_glue_encrypt(struct aead_request *req)
-{
-	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct morus1280_ctx *ctx = crypto_aead_ctx(tfm);
-	struct morus1280_ops OPS = {
-		.skcipher_walk_init = skcipher_walk_aead_encrypt,
-		.crypt_blocks = ctx->ops->enc,
-		.crypt_tail = ctx->ops->enc_tail,
-	};
-
-	struct morus1280_block tag = {};
-	unsigned int authsize = crypto_aead_authsize(tfm);
-	unsigned int cryptlen = req->cryptlen;
-
-	crypto_morus1280_glue_crypt(req, OPS, cryptlen, &tag);
-
-	scatterwalk_map_and_copy(tag.bytes, req->dst,
-				 req->assoclen + cryptlen, authsize, 1);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(crypto_morus1280_glue_encrypt);
-
-int crypto_morus1280_glue_decrypt(struct aead_request *req)
-{
-	static const u8 zeros[MORUS1280_BLOCK_SIZE] = {};
-
-	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct morus1280_ctx *ctx = crypto_aead_ctx(tfm);
-	struct morus1280_ops OPS = {
-		.skcipher_walk_init = skcipher_walk_aead_decrypt,
-		.crypt_blocks = ctx->ops->dec,
-		.crypt_tail = ctx->ops->dec_tail,
-	};
-
-	struct morus1280_block tag;
-	unsigned int authsize = crypto_aead_authsize(tfm);
-	unsigned int cryptlen = req->cryptlen - authsize;
-
-	scatterwalk_map_and_copy(tag.bytes, req->src,
-				 req->assoclen + cryptlen, authsize, 0);
-
-	crypto_morus1280_glue_crypt(req, OPS, cryptlen, &tag);
-
-	return crypto_memneq(tag.bytes, zeros, authsize) ? -EBADMSG : 0;
-}
-EXPORT_SYMBOL_GPL(crypto_morus1280_glue_decrypt);
-
-void crypto_morus1280_glue_init_ops(struct crypto_aead *aead,
-				    const struct morus1280_glue_ops *ops)
-{
-	struct morus1280_ctx *ctx = crypto_aead_ctx(aead);
-	ctx->ops = ops;
-}
-EXPORT_SYMBOL_GPL(crypto_morus1280_glue_init_ops);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
-MODULE_DESCRIPTION("MORUS-1280 AEAD mode -- glue for x86 optimizations");