| .. | .. |
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| 1 | +// SPDX-License-Identifier: GPL-2.0-only |
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| 1 | 2 | /* Glue code for DES encryption optimized for sparc64 crypto opcodes. |
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| 2 | 3 | * |
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| 3 | 4 | * Copyright (C) 2012 David S. Miller <davem@davemloft.net> |
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| .. | .. |
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| 11 | 12 | #include <linux/mm.h> |
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| 12 | 13 | #include <linux/types.h> |
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| 13 | 14 | #include <crypto/algapi.h> |
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| 14 | | -#include <crypto/des.h> |
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| 15 | +#include <crypto/internal/des.h> |
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| 16 | +#include <crypto/internal/skcipher.h> |
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| 15 | 17 | |
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| 16 | 18 | #include <asm/fpumacro.h> |
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| 17 | 19 | #include <asm/pstate.h> |
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| .. | .. |
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| 44 | 46 | unsigned int keylen) |
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| 45 | 47 | { |
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| 46 | 48 | struct des_sparc64_ctx *dctx = crypto_tfm_ctx(tfm); |
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| 47 | | - u32 *flags = &tfm->crt_flags; |
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| 48 | | - u32 tmp[DES_EXPKEY_WORDS]; |
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| 49 | | - int ret; |
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| 49 | + int err; |
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| 50 | 50 | |
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| 51 | 51 | /* Even though we have special instructions for key expansion, |
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| 52 | | - * we call des_ekey() so that we don't have to write our own |
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| 52 | + * we call des_verify_key() so that we don't have to write our own |
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| 53 | 53 | * weak key detection code. |
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| 54 | 54 | */ |
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| 55 | | - ret = des_ekey(tmp, key); |
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| 56 | | - if (unlikely(ret == 0) && (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) { |
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| 57 | | - *flags |= CRYPTO_TFM_RES_WEAK_KEY; |
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| 58 | | - return -EINVAL; |
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| 59 | | - } |
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| 55 | + err = crypto_des_verify_key(tfm, key); |
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| 56 | + if (err) |
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| 57 | + return err; |
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| 60 | 58 | |
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| 61 | 59 | des_sparc64_key_expand((const u32 *) key, &dctx->encrypt_expkey[0]); |
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| 62 | 60 | encrypt_to_decrypt(&dctx->decrypt_expkey[0], &dctx->encrypt_expkey[0]); |
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| .. | .. |
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| 64 | 62 | return 0; |
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| 65 | 63 | } |
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| 66 | 64 | |
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| 65 | +static int des_set_key_skcipher(struct crypto_skcipher *tfm, const u8 *key, |
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| 66 | + unsigned int keylen) |
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| 67 | +{ |
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| 68 | + return des_set_key(crypto_skcipher_tfm(tfm), key, keylen); |
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| 69 | +} |
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| 70 | + |
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| 67 | 71 | extern void des_sparc64_crypt(const u64 *key, const u64 *input, |
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| 68 | 72 | u64 *output); |
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| 69 | 73 | |
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| 70 | | -static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 74 | +static void sparc_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 71 | 75 | { |
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| 72 | 76 | struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm); |
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| 73 | 77 | const u64 *K = ctx->encrypt_expkey; |
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| .. | .. |
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| 75 | 79 | des_sparc64_crypt(K, (const u64 *) src, (u64 *) dst); |
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| 76 | 80 | } |
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| 77 | 81 | |
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| 78 | | -static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 82 | +static void sparc_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 79 | 83 | { |
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| 80 | 84 | struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm); |
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| 81 | 85 | const u64 *K = ctx->decrypt_expkey; |
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| .. | .. |
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| 88 | 92 | extern void des_sparc64_ecb_crypt(const u64 *input, u64 *output, |
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| 89 | 93 | unsigned int len); |
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| 90 | 94 | |
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| 91 | | -#define DES_BLOCK_MASK (~(DES_BLOCK_SIZE - 1)) |
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| 92 | | - |
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| 93 | | -static int __ecb_crypt(struct blkcipher_desc *desc, |
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| 94 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 95 | | - unsigned int nbytes, bool encrypt) |
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| 95 | +static int __ecb_crypt(struct skcipher_request *req, bool encrypt) |
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| 96 | 96 | { |
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| 97 | | - struct des_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
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| 98 | | - struct blkcipher_walk walk; |
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| 97 | + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
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| 98 | + const struct des_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm); |
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| 99 | + struct skcipher_walk walk; |
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| 100 | + unsigned int nbytes; |
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| 99 | 101 | int err; |
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| 100 | 102 | |
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| 101 | | - blkcipher_walk_init(&walk, dst, src, nbytes); |
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| 102 | | - err = blkcipher_walk_virt(desc, &walk); |
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| 103 | | - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
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| 103 | + err = skcipher_walk_virt(&walk, req, true); |
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| 104 | + if (err) |
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| 105 | + return err; |
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| 104 | 106 | |
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| 105 | 107 | if (encrypt) |
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| 106 | 108 | des_sparc64_load_keys(&ctx->encrypt_expkey[0]); |
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| 107 | 109 | else |
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| 108 | 110 | des_sparc64_load_keys(&ctx->decrypt_expkey[0]); |
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| 109 | | - while ((nbytes = walk.nbytes)) { |
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| 110 | | - unsigned int block_len = nbytes & DES_BLOCK_MASK; |
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| 111 | | - |
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| 112 | | - if (likely(block_len)) { |
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| 113 | | - des_sparc64_ecb_crypt((const u64 *)walk.src.virt.addr, |
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| 114 | | - (u64 *) walk.dst.virt.addr, |
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| 115 | | - block_len); |
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| 116 | | - } |
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| 117 | | - nbytes &= DES_BLOCK_SIZE - 1; |
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| 118 | | - err = blkcipher_walk_done(desc, &walk, nbytes); |
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| 111 | + while ((nbytes = walk.nbytes) != 0) { |
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| 112 | + des_sparc64_ecb_crypt(walk.src.virt.addr, walk.dst.virt.addr, |
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| 113 | + round_down(nbytes, DES_BLOCK_SIZE)); |
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| 114 | + err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE); |
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| 119 | 115 | } |
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| 120 | 116 | fprs_write(0); |
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| 121 | 117 | return err; |
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| 122 | 118 | } |
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| 123 | 119 | |
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| 124 | | -static int ecb_encrypt(struct blkcipher_desc *desc, |
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| 125 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 126 | | - unsigned int nbytes) |
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| 120 | +static int ecb_encrypt(struct skcipher_request *req) |
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| 127 | 121 | { |
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| 128 | | - return __ecb_crypt(desc, dst, src, nbytes, true); |
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| 122 | + return __ecb_crypt(req, true); |
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| 129 | 123 | } |
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| 130 | 124 | |
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| 131 | | -static int ecb_decrypt(struct blkcipher_desc *desc, |
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| 132 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 133 | | - unsigned int nbytes) |
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| 125 | +static int ecb_decrypt(struct skcipher_request *req) |
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| 134 | 126 | { |
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| 135 | | - return __ecb_crypt(desc, dst, src, nbytes, false); |
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| 127 | + return __ecb_crypt(req, false); |
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| 136 | 128 | } |
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| 137 | 129 | |
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| 138 | 130 | extern void des_sparc64_cbc_encrypt(const u64 *input, u64 *output, |
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| 139 | 131 | unsigned int len, u64 *iv); |
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| 140 | 132 | |
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| 141 | | -static int cbc_encrypt(struct blkcipher_desc *desc, |
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| 142 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 143 | | - unsigned int nbytes) |
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| 133 | +extern void des_sparc64_cbc_decrypt(const u64 *input, u64 *output, |
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| 134 | + unsigned int len, u64 *iv); |
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| 135 | + |
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| 136 | +static int __cbc_crypt(struct skcipher_request *req, bool encrypt) |
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| 144 | 137 | { |
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| 145 | | - struct des_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
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| 146 | | - struct blkcipher_walk walk; |
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| 138 | + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
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| 139 | + const struct des_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm); |
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| 140 | + struct skcipher_walk walk; |
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| 141 | + unsigned int nbytes; |
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| 147 | 142 | int err; |
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| 148 | 143 | |
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| 149 | | - blkcipher_walk_init(&walk, dst, src, nbytes); |
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| 150 | | - err = blkcipher_walk_virt(desc, &walk); |
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| 151 | | - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
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| 144 | + err = skcipher_walk_virt(&walk, req, true); |
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| 145 | + if (err) |
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| 146 | + return err; |
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| 152 | 147 | |
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| 153 | | - des_sparc64_load_keys(&ctx->encrypt_expkey[0]); |
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| 154 | | - while ((nbytes = walk.nbytes)) { |
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| 155 | | - unsigned int block_len = nbytes & DES_BLOCK_MASK; |
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| 156 | | - |
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| 157 | | - if (likely(block_len)) { |
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| 158 | | - des_sparc64_cbc_encrypt((const u64 *)walk.src.virt.addr, |
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| 159 | | - (u64 *) walk.dst.virt.addr, |
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| 160 | | - block_len, (u64 *) walk.iv); |
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| 161 | | - } |
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| 162 | | - nbytes &= DES_BLOCK_SIZE - 1; |
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| 163 | | - err = blkcipher_walk_done(desc, &walk, nbytes); |
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| 148 | + if (encrypt) |
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| 149 | + des_sparc64_load_keys(&ctx->encrypt_expkey[0]); |
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| 150 | + else |
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| 151 | + des_sparc64_load_keys(&ctx->decrypt_expkey[0]); |
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| 152 | + while ((nbytes = walk.nbytes) != 0) { |
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| 153 | + if (encrypt) |
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| 154 | + des_sparc64_cbc_encrypt(walk.src.virt.addr, |
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| 155 | + walk.dst.virt.addr, |
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| 156 | + round_down(nbytes, |
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| 157 | + DES_BLOCK_SIZE), |
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| 158 | + walk.iv); |
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| 159 | + else |
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| 160 | + des_sparc64_cbc_decrypt(walk.src.virt.addr, |
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| 161 | + walk.dst.virt.addr, |
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| 162 | + round_down(nbytes, |
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| 163 | + DES_BLOCK_SIZE), |
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| 164 | + walk.iv); |
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| 165 | + err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE); |
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| 164 | 166 | } |
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| 165 | 167 | fprs_write(0); |
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| 166 | 168 | return err; |
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| 167 | 169 | } |
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| 168 | 170 | |
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| 169 | | -extern void des_sparc64_cbc_decrypt(const u64 *input, u64 *output, |
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| 170 | | - unsigned int len, u64 *iv); |
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| 171 | | - |
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| 172 | | -static int cbc_decrypt(struct blkcipher_desc *desc, |
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| 173 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 174 | | - unsigned int nbytes) |
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| 171 | +static int cbc_encrypt(struct skcipher_request *req) |
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| 175 | 172 | { |
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| 176 | | - struct des_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
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| 177 | | - struct blkcipher_walk walk; |
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| 178 | | - int err; |
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| 173 | + return __cbc_crypt(req, true); |
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| 174 | +} |
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| 179 | 175 | |
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| 180 | | - blkcipher_walk_init(&walk, dst, src, nbytes); |
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| 181 | | - err = blkcipher_walk_virt(desc, &walk); |
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| 182 | | - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
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| 183 | | - |
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| 184 | | - des_sparc64_load_keys(&ctx->decrypt_expkey[0]); |
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| 185 | | - while ((nbytes = walk.nbytes)) { |
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| 186 | | - unsigned int block_len = nbytes & DES_BLOCK_MASK; |
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| 187 | | - |
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| 188 | | - if (likely(block_len)) { |
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| 189 | | - des_sparc64_cbc_decrypt((const u64 *)walk.src.virt.addr, |
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| 190 | | - (u64 *) walk.dst.virt.addr, |
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| 191 | | - block_len, (u64 *) walk.iv); |
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| 192 | | - } |
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| 193 | | - nbytes &= DES_BLOCK_SIZE - 1; |
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| 194 | | - err = blkcipher_walk_done(desc, &walk, nbytes); |
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| 195 | | - } |
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| 196 | | - fprs_write(0); |
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| 197 | | - return err; |
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| 176 | +static int cbc_decrypt(struct skcipher_request *req) |
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| 177 | +{ |
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| 178 | + return __cbc_crypt(req, false); |
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| 198 | 179 | } |
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| 199 | 180 | |
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| 200 | 181 | static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key, |
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| 201 | 182 | unsigned int keylen) |
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| 202 | 183 | { |
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| 203 | 184 | struct des3_ede_sparc64_ctx *dctx = crypto_tfm_ctx(tfm); |
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| 204 | | - const u32 *K = (const u32 *)key; |
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| 205 | | - u32 *flags = &tfm->crt_flags; |
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| 206 | 185 | u64 k1[DES_EXPKEY_WORDS / 2]; |
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| 207 | 186 | u64 k2[DES_EXPKEY_WORDS / 2]; |
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| 208 | 187 | u64 k3[DES_EXPKEY_WORDS / 2]; |
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| 188 | + int err; |
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| 209 | 189 | |
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| 210 | | - if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) || |
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| 211 | | - !((K[2] ^ K[4]) | (K[3] ^ K[5]))) && |
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| 212 | | - (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) { |
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| 213 | | - *flags |= CRYPTO_TFM_RES_WEAK_KEY; |
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| 214 | | - return -EINVAL; |
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| 215 | | - } |
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| 190 | + err = crypto_des3_ede_verify_key(tfm, key); |
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| 191 | + if (err) |
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| 192 | + return err; |
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| 216 | 193 | |
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| 217 | 194 | des_sparc64_key_expand((const u32 *)key, k1); |
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| 218 | 195 | key += DES_KEY_SIZE; |
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| .. | .. |
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| 234 | 211 | return 0; |
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| 235 | 212 | } |
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| 236 | 213 | |
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| 214 | +static int des3_ede_set_key_skcipher(struct crypto_skcipher *tfm, const u8 *key, |
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| 215 | + unsigned int keylen) |
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| 216 | +{ |
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| 217 | + return des3_ede_set_key(crypto_skcipher_tfm(tfm), key, keylen); |
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| 218 | +} |
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| 219 | + |
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| 237 | 220 | extern void des3_ede_sparc64_crypt(const u64 *key, const u64 *input, |
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| 238 | 221 | u64 *output); |
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| 239 | 222 | |
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| 240 | | -static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 223 | +static void sparc_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 241 | 224 | { |
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| 242 | 225 | struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm); |
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| 243 | 226 | const u64 *K = ctx->encrypt_expkey; |
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| .. | .. |
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| 245 | 228 | des3_ede_sparc64_crypt(K, (const u64 *) src, (u64 *) dst); |
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| 246 | 229 | } |
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| 247 | 230 | |
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| 248 | | -static void des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 231 | +static void sparc_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
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| 249 | 232 | { |
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| 250 | 233 | struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm); |
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| 251 | 234 | const u64 *K = ctx->decrypt_expkey; |
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| .. | .. |
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| 258 | 241 | extern void des3_ede_sparc64_ecb_crypt(const u64 *expkey, const u64 *input, |
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| 259 | 242 | u64 *output, unsigned int len); |
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| 260 | 243 | |
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| 261 | | -static int __ecb3_crypt(struct blkcipher_desc *desc, |
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| 262 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 263 | | - unsigned int nbytes, bool encrypt) |
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| 244 | +static int __ecb3_crypt(struct skcipher_request *req, bool encrypt) |
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| 264 | 245 | { |
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| 265 | | - struct des3_ede_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
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| 266 | | - struct blkcipher_walk walk; |
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| 246 | + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
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| 247 | + const struct des3_ede_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm); |
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| 248 | + struct skcipher_walk walk; |
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| 267 | 249 | const u64 *K; |
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| 250 | + unsigned int nbytes; |
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| 268 | 251 | int err; |
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| 269 | 252 | |
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| 270 | | - blkcipher_walk_init(&walk, dst, src, nbytes); |
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| 271 | | - err = blkcipher_walk_virt(desc, &walk); |
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| 272 | | - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
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| 253 | + err = skcipher_walk_virt(&walk, req, true); |
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| 254 | + if (err) |
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| 255 | + return err; |
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| 273 | 256 | |
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| 274 | 257 | if (encrypt) |
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| 275 | 258 | K = &ctx->encrypt_expkey[0]; |
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| 276 | 259 | else |
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| 277 | 260 | K = &ctx->decrypt_expkey[0]; |
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| 278 | 261 | des3_ede_sparc64_load_keys(K); |
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| 279 | | - while ((nbytes = walk.nbytes)) { |
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| 280 | | - unsigned int block_len = nbytes & DES_BLOCK_MASK; |
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| 281 | | - |
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| 282 | | - if (likely(block_len)) { |
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| 283 | | - const u64 *src64 = (const u64 *)walk.src.virt.addr; |
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| 284 | | - des3_ede_sparc64_ecb_crypt(K, src64, |
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| 285 | | - (u64 *) walk.dst.virt.addr, |
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| 286 | | - block_len); |
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| 287 | | - } |
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| 288 | | - nbytes &= DES_BLOCK_SIZE - 1; |
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| 289 | | - err = blkcipher_walk_done(desc, &walk, nbytes); |
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| 262 | + while ((nbytes = walk.nbytes) != 0) { |
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| 263 | + des3_ede_sparc64_ecb_crypt(K, walk.src.virt.addr, |
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| 264 | + walk.dst.virt.addr, |
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| 265 | + round_down(nbytes, DES_BLOCK_SIZE)); |
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| 266 | + err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE); |
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| 290 | 267 | } |
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| 291 | 268 | fprs_write(0); |
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| 292 | 269 | return err; |
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| 293 | 270 | } |
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| 294 | 271 | |
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| 295 | | -static int ecb3_encrypt(struct blkcipher_desc *desc, |
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| 296 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 297 | | - unsigned int nbytes) |
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| 272 | +static int ecb3_encrypt(struct skcipher_request *req) |
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| 298 | 273 | { |
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| 299 | | - return __ecb3_crypt(desc, dst, src, nbytes, true); |
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| 274 | + return __ecb3_crypt(req, true); |
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| 300 | 275 | } |
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| 301 | 276 | |
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| 302 | | -static int ecb3_decrypt(struct blkcipher_desc *desc, |
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| 303 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 304 | | - unsigned int nbytes) |
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| 277 | +static int ecb3_decrypt(struct skcipher_request *req) |
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| 305 | 278 | { |
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| 306 | | - return __ecb3_crypt(desc, dst, src, nbytes, false); |
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| 279 | + return __ecb3_crypt(req, false); |
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| 307 | 280 | } |
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| 308 | 281 | |
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| 309 | 282 | extern void des3_ede_sparc64_cbc_encrypt(const u64 *expkey, const u64 *input, |
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| 310 | 283 | u64 *output, unsigned int len, |
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| 311 | 284 | u64 *iv); |
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| 312 | 285 | |
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| 313 | | -static int cbc3_encrypt(struct blkcipher_desc *desc, |
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| 314 | | - struct scatterlist *dst, struct scatterlist *src, |
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| 315 | | - unsigned int nbytes) |
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| 316 | | -{ |
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| 317 | | - struct des3_ede_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
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| 318 | | - struct blkcipher_walk walk; |
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| 319 | | - const u64 *K; |
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| 320 | | - int err; |
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| 321 | | - |
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| 322 | | - blkcipher_walk_init(&walk, dst, src, nbytes); |
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| 323 | | - err = blkcipher_walk_virt(desc, &walk); |
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| 324 | | - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
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| 325 | | - |
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| 326 | | - K = &ctx->encrypt_expkey[0]; |
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| 327 | | - des3_ede_sparc64_load_keys(K); |
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| 328 | | - while ((nbytes = walk.nbytes)) { |
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| 329 | | - unsigned int block_len = nbytes & DES_BLOCK_MASK; |
|---|
| 330 | | - |
|---|
| 331 | | - if (likely(block_len)) { |
|---|
| 332 | | - const u64 *src64 = (const u64 *)walk.src.virt.addr; |
|---|
| 333 | | - des3_ede_sparc64_cbc_encrypt(K, src64, |
|---|
| 334 | | - (u64 *) walk.dst.virt.addr, |
|---|
| 335 | | - block_len, |
|---|
| 336 | | - (u64 *) walk.iv); |
|---|
| 337 | | - } |
|---|
| 338 | | - nbytes &= DES_BLOCK_SIZE - 1; |
|---|
| 339 | | - err = blkcipher_walk_done(desc, &walk, nbytes); |
|---|
| 340 | | - } |
|---|
| 341 | | - fprs_write(0); |
|---|
| 342 | | - return err; |
|---|
| 343 | | -} |
|---|
| 344 | | - |
|---|
| 345 | 286 | extern void des3_ede_sparc64_cbc_decrypt(const u64 *expkey, const u64 *input, |
|---|
| 346 | 287 | u64 *output, unsigned int len, |
|---|
| 347 | 288 | u64 *iv); |
|---|
| 348 | 289 | |
|---|
| 349 | | -static int cbc3_decrypt(struct blkcipher_desc *desc, |
|---|
| 350 | | - struct scatterlist *dst, struct scatterlist *src, |
|---|
| 351 | | - unsigned int nbytes) |
|---|
| 290 | +static int __cbc3_crypt(struct skcipher_request *req, bool encrypt) |
|---|
| 352 | 291 | { |
|---|
| 353 | | - struct des3_ede_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
|---|
| 354 | | - struct blkcipher_walk walk; |
|---|
| 292 | + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
|---|
| 293 | + const struct des3_ede_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm); |
|---|
| 294 | + struct skcipher_walk walk; |
|---|
| 355 | 295 | const u64 *K; |
|---|
| 296 | + unsigned int nbytes; |
|---|
| 356 | 297 | int err; |
|---|
| 357 | 298 | |
|---|
| 358 | | - blkcipher_walk_init(&walk, dst, src, nbytes); |
|---|
| 359 | | - err = blkcipher_walk_virt(desc, &walk); |
|---|
| 360 | | - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
|---|
| 299 | + err = skcipher_walk_virt(&walk, req, true); |
|---|
| 300 | + if (err) |
|---|
| 301 | + return err; |
|---|
| 361 | 302 | |
|---|
| 362 | | - K = &ctx->decrypt_expkey[0]; |
|---|
| 303 | + if (encrypt) |
|---|
| 304 | + K = &ctx->encrypt_expkey[0]; |
|---|
| 305 | + else |
|---|
| 306 | + K = &ctx->decrypt_expkey[0]; |
|---|
| 363 | 307 | des3_ede_sparc64_load_keys(K); |
|---|
| 364 | | - while ((nbytes = walk.nbytes)) { |
|---|
| 365 | | - unsigned int block_len = nbytes & DES_BLOCK_MASK; |
|---|
| 366 | | - |
|---|
| 367 | | - if (likely(block_len)) { |
|---|
| 368 | | - const u64 *src64 = (const u64 *)walk.src.virt.addr; |
|---|
| 369 | | - des3_ede_sparc64_cbc_decrypt(K, src64, |
|---|
| 370 | | - (u64 *) walk.dst.virt.addr, |
|---|
| 371 | | - block_len, |
|---|
| 372 | | - (u64 *) walk.iv); |
|---|
| 373 | | - } |
|---|
| 374 | | - nbytes &= DES_BLOCK_SIZE - 1; |
|---|
| 375 | | - err = blkcipher_walk_done(desc, &walk, nbytes); |
|---|
| 308 | + while ((nbytes = walk.nbytes) != 0) { |
|---|
| 309 | + if (encrypt) |
|---|
| 310 | + des3_ede_sparc64_cbc_encrypt(K, walk.src.virt.addr, |
|---|
| 311 | + walk.dst.virt.addr, |
|---|
| 312 | + round_down(nbytes, |
|---|
| 313 | + DES_BLOCK_SIZE), |
|---|
| 314 | + walk.iv); |
|---|
| 315 | + else |
|---|
| 316 | + des3_ede_sparc64_cbc_decrypt(K, walk.src.virt.addr, |
|---|
| 317 | + walk.dst.virt.addr, |
|---|
| 318 | + round_down(nbytes, |
|---|
| 319 | + DES_BLOCK_SIZE), |
|---|
| 320 | + walk.iv); |
|---|
| 321 | + err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE); |
|---|
| 376 | 322 | } |
|---|
| 377 | 323 | fprs_write(0); |
|---|
| 378 | 324 | return err; |
|---|
| 379 | 325 | } |
|---|
| 380 | 326 | |
|---|
| 381 | | -static struct crypto_alg algs[] = { { |
|---|
| 382 | | - .cra_name = "des", |
|---|
| 383 | | - .cra_driver_name = "des-sparc64", |
|---|
| 384 | | - .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 385 | | - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, |
|---|
| 386 | | - .cra_blocksize = DES_BLOCK_SIZE, |
|---|
| 387 | | - .cra_ctxsize = sizeof(struct des_sparc64_ctx), |
|---|
| 388 | | - .cra_alignmask = 7, |
|---|
| 389 | | - .cra_module = THIS_MODULE, |
|---|
| 390 | | - .cra_u = { |
|---|
| 391 | | - .cipher = { |
|---|
| 392 | | - .cia_min_keysize = DES_KEY_SIZE, |
|---|
| 393 | | - .cia_max_keysize = DES_KEY_SIZE, |
|---|
| 394 | | - .cia_setkey = des_set_key, |
|---|
| 395 | | - .cia_encrypt = des_encrypt, |
|---|
| 396 | | - .cia_decrypt = des_decrypt |
|---|
| 327 | +static int cbc3_encrypt(struct skcipher_request *req) |
|---|
| 328 | +{ |
|---|
| 329 | + return __cbc3_crypt(req, true); |
|---|
| 330 | +} |
|---|
| 331 | + |
|---|
| 332 | +static int cbc3_decrypt(struct skcipher_request *req) |
|---|
| 333 | +{ |
|---|
| 334 | + return __cbc3_crypt(req, false); |
|---|
| 335 | +} |
|---|
| 336 | + |
|---|
| 337 | +static struct crypto_alg cipher_algs[] = { |
|---|
| 338 | + { |
|---|
| 339 | + .cra_name = "des", |
|---|
| 340 | + .cra_driver_name = "des-sparc64", |
|---|
| 341 | + .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 342 | + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, |
|---|
| 343 | + .cra_blocksize = DES_BLOCK_SIZE, |
|---|
| 344 | + .cra_ctxsize = sizeof(struct des_sparc64_ctx), |
|---|
| 345 | + .cra_alignmask = 7, |
|---|
| 346 | + .cra_module = THIS_MODULE, |
|---|
| 347 | + .cra_u = { |
|---|
| 348 | + .cipher = { |
|---|
| 349 | + .cia_min_keysize = DES_KEY_SIZE, |
|---|
| 350 | + .cia_max_keysize = DES_KEY_SIZE, |
|---|
| 351 | + .cia_setkey = des_set_key, |
|---|
| 352 | + .cia_encrypt = sparc_des_encrypt, |
|---|
| 353 | + .cia_decrypt = sparc_des_decrypt |
|---|
| 354 | + } |
|---|
| 355 | + } |
|---|
| 356 | + }, { |
|---|
| 357 | + .cra_name = "des3_ede", |
|---|
| 358 | + .cra_driver_name = "des3_ede-sparc64", |
|---|
| 359 | + .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 360 | + .cra_flags = CRYPTO_ALG_TYPE_CIPHER, |
|---|
| 361 | + .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
|---|
| 362 | + .cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx), |
|---|
| 363 | + .cra_alignmask = 7, |
|---|
| 364 | + .cra_module = THIS_MODULE, |
|---|
| 365 | + .cra_u = { |
|---|
| 366 | + .cipher = { |
|---|
| 367 | + .cia_min_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 368 | + .cia_max_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 369 | + .cia_setkey = des3_ede_set_key, |
|---|
| 370 | + .cia_encrypt = sparc_des3_ede_encrypt, |
|---|
| 371 | + .cia_decrypt = sparc_des3_ede_decrypt |
|---|
| 372 | + } |
|---|
| 397 | 373 | } |
|---|
| 398 | 374 | } |
|---|
| 399 | | -}, { |
|---|
| 400 | | - .cra_name = "ecb(des)", |
|---|
| 401 | | - .cra_driver_name = "ecb-des-sparc64", |
|---|
| 402 | | - .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 403 | | - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
|---|
| 404 | | - .cra_blocksize = DES_BLOCK_SIZE, |
|---|
| 405 | | - .cra_ctxsize = sizeof(struct des_sparc64_ctx), |
|---|
| 406 | | - .cra_alignmask = 7, |
|---|
| 407 | | - .cra_type = &crypto_blkcipher_type, |
|---|
| 408 | | - .cra_module = THIS_MODULE, |
|---|
| 409 | | - .cra_u = { |
|---|
| 410 | | - .blkcipher = { |
|---|
| 411 | | - .min_keysize = DES_KEY_SIZE, |
|---|
| 412 | | - .max_keysize = DES_KEY_SIZE, |
|---|
| 413 | | - .setkey = des_set_key, |
|---|
| 414 | | - .encrypt = ecb_encrypt, |
|---|
| 415 | | - .decrypt = ecb_decrypt, |
|---|
| 416 | | - }, |
|---|
| 417 | | - }, |
|---|
| 418 | | -}, { |
|---|
| 419 | | - .cra_name = "cbc(des)", |
|---|
| 420 | | - .cra_driver_name = "cbc-des-sparc64", |
|---|
| 421 | | - .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 422 | | - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
|---|
| 423 | | - .cra_blocksize = DES_BLOCK_SIZE, |
|---|
| 424 | | - .cra_ctxsize = sizeof(struct des_sparc64_ctx), |
|---|
| 425 | | - .cra_alignmask = 7, |
|---|
| 426 | | - .cra_type = &crypto_blkcipher_type, |
|---|
| 427 | | - .cra_module = THIS_MODULE, |
|---|
| 428 | | - .cra_u = { |
|---|
| 429 | | - .blkcipher = { |
|---|
| 430 | | - .min_keysize = DES_KEY_SIZE, |
|---|
| 431 | | - .max_keysize = DES_KEY_SIZE, |
|---|
| 432 | | - .ivsize = DES_BLOCK_SIZE, |
|---|
| 433 | | - .setkey = des_set_key, |
|---|
| 434 | | - .encrypt = cbc_encrypt, |
|---|
| 435 | | - .decrypt = cbc_decrypt, |
|---|
| 436 | | - }, |
|---|
| 437 | | - }, |
|---|
| 438 | | -}, { |
|---|
| 439 | | - .cra_name = "des3_ede", |
|---|
| 440 | | - .cra_driver_name = "des3_ede-sparc64", |
|---|
| 441 | | - .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 442 | | - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, |
|---|
| 443 | | - .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
|---|
| 444 | | - .cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx), |
|---|
| 445 | | - .cra_alignmask = 7, |
|---|
| 446 | | - .cra_module = THIS_MODULE, |
|---|
| 447 | | - .cra_u = { |
|---|
| 448 | | - .cipher = { |
|---|
| 449 | | - .cia_min_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 450 | | - .cia_max_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 451 | | - .cia_setkey = des3_ede_set_key, |
|---|
| 452 | | - .cia_encrypt = des3_ede_encrypt, |
|---|
| 453 | | - .cia_decrypt = des3_ede_decrypt |
|---|
| 454 | | - } |
|---|
| 375 | +}; |
|---|
| 376 | + |
|---|
| 377 | +static struct skcipher_alg skcipher_algs[] = { |
|---|
| 378 | + { |
|---|
| 379 | + .base.cra_name = "ecb(des)", |
|---|
| 380 | + .base.cra_driver_name = "ecb-des-sparc64", |
|---|
| 381 | + .base.cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 382 | + .base.cra_blocksize = DES_BLOCK_SIZE, |
|---|
| 383 | + .base.cra_ctxsize = sizeof(struct des_sparc64_ctx), |
|---|
| 384 | + .base.cra_alignmask = 7, |
|---|
| 385 | + .base.cra_module = THIS_MODULE, |
|---|
| 386 | + .min_keysize = DES_KEY_SIZE, |
|---|
| 387 | + .max_keysize = DES_KEY_SIZE, |
|---|
| 388 | + .setkey = des_set_key_skcipher, |
|---|
| 389 | + .encrypt = ecb_encrypt, |
|---|
| 390 | + .decrypt = ecb_decrypt, |
|---|
| 391 | + }, { |
|---|
| 392 | + .base.cra_name = "cbc(des)", |
|---|
| 393 | + .base.cra_driver_name = "cbc-des-sparc64", |
|---|
| 394 | + .base.cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 395 | + .base.cra_blocksize = DES_BLOCK_SIZE, |
|---|
| 396 | + .base.cra_ctxsize = sizeof(struct des_sparc64_ctx), |
|---|
| 397 | + .base.cra_alignmask = 7, |
|---|
| 398 | + .base.cra_module = THIS_MODULE, |
|---|
| 399 | + .min_keysize = DES_KEY_SIZE, |
|---|
| 400 | + .max_keysize = DES_KEY_SIZE, |
|---|
| 401 | + .ivsize = DES_BLOCK_SIZE, |
|---|
| 402 | + .setkey = des_set_key_skcipher, |
|---|
| 403 | + .encrypt = cbc_encrypt, |
|---|
| 404 | + .decrypt = cbc_decrypt, |
|---|
| 405 | + }, { |
|---|
| 406 | + .base.cra_name = "ecb(des3_ede)", |
|---|
| 407 | + .base.cra_driver_name = "ecb-des3_ede-sparc64", |
|---|
| 408 | + .base.cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 409 | + .base.cra_blocksize = DES3_EDE_BLOCK_SIZE, |
|---|
| 410 | + .base.cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx), |
|---|
| 411 | + .base.cra_alignmask = 7, |
|---|
| 412 | + .base.cra_module = THIS_MODULE, |
|---|
| 413 | + .min_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 414 | + .max_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 415 | + .setkey = des3_ede_set_key_skcipher, |
|---|
| 416 | + .encrypt = ecb3_encrypt, |
|---|
| 417 | + .decrypt = ecb3_decrypt, |
|---|
| 418 | + }, { |
|---|
| 419 | + .base.cra_name = "cbc(des3_ede)", |
|---|
| 420 | + .base.cra_driver_name = "cbc-des3_ede-sparc64", |
|---|
| 421 | + .base.cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 422 | + .base.cra_blocksize = DES3_EDE_BLOCK_SIZE, |
|---|
| 423 | + .base.cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx), |
|---|
| 424 | + .base.cra_alignmask = 7, |
|---|
| 425 | + .base.cra_module = THIS_MODULE, |
|---|
| 426 | + .min_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 427 | + .max_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 428 | + .ivsize = DES3_EDE_BLOCK_SIZE, |
|---|
| 429 | + .setkey = des3_ede_set_key_skcipher, |
|---|
| 430 | + .encrypt = cbc3_encrypt, |
|---|
| 431 | + .decrypt = cbc3_decrypt, |
|---|
| 455 | 432 | } |
|---|
| 456 | | -}, { |
|---|
| 457 | | - .cra_name = "ecb(des3_ede)", |
|---|
| 458 | | - .cra_driver_name = "ecb-des3_ede-sparc64", |
|---|
| 459 | | - .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 460 | | - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
|---|
| 461 | | - .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
|---|
| 462 | | - .cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx), |
|---|
| 463 | | - .cra_alignmask = 7, |
|---|
| 464 | | - .cra_type = &crypto_blkcipher_type, |
|---|
| 465 | | - .cra_module = THIS_MODULE, |
|---|
| 466 | | - .cra_u = { |
|---|
| 467 | | - .blkcipher = { |
|---|
| 468 | | - .min_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 469 | | - .max_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 470 | | - .setkey = des3_ede_set_key, |
|---|
| 471 | | - .encrypt = ecb3_encrypt, |
|---|
| 472 | | - .decrypt = ecb3_decrypt, |
|---|
| 473 | | - }, |
|---|
| 474 | | - }, |
|---|
| 475 | | -}, { |
|---|
| 476 | | - .cra_name = "cbc(des3_ede)", |
|---|
| 477 | | - .cra_driver_name = "cbc-des3_ede-sparc64", |
|---|
| 478 | | - .cra_priority = SPARC_CR_OPCODE_PRIORITY, |
|---|
| 479 | | - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
|---|
| 480 | | - .cra_blocksize = DES3_EDE_BLOCK_SIZE, |
|---|
| 481 | | - .cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx), |
|---|
| 482 | | - .cra_alignmask = 7, |
|---|
| 483 | | - .cra_type = &crypto_blkcipher_type, |
|---|
| 484 | | - .cra_module = THIS_MODULE, |
|---|
| 485 | | - .cra_u = { |
|---|
| 486 | | - .blkcipher = { |
|---|
| 487 | | - .min_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 488 | | - .max_keysize = DES3_EDE_KEY_SIZE, |
|---|
| 489 | | - .ivsize = DES3_EDE_BLOCK_SIZE, |
|---|
| 490 | | - .setkey = des3_ede_set_key, |
|---|
| 491 | | - .encrypt = cbc3_encrypt, |
|---|
| 492 | | - .decrypt = cbc3_decrypt, |
|---|
| 493 | | - }, |
|---|
| 494 | | - }, |
|---|
| 495 | | -} }; |
|---|
| 433 | +}; |
|---|
| 496 | 434 | |
|---|
| 497 | 435 | static bool __init sparc64_has_des_opcode(void) |
|---|
| 498 | 436 | { |
|---|
| .. | .. |
|---|
| 510 | 448 | |
|---|
| 511 | 449 | static int __init des_sparc64_mod_init(void) |
|---|
| 512 | 450 | { |
|---|
| 513 | | - int i; |
|---|
| 451 | + int err; |
|---|
| 514 | 452 | |
|---|
| 515 | | - for (i = 0; i < ARRAY_SIZE(algs); i++) |
|---|
| 516 | | - INIT_LIST_HEAD(&algs[i].cra_list); |
|---|
| 517 | | - |
|---|
| 518 | | - if (sparc64_has_des_opcode()) { |
|---|
| 519 | | - pr_info("Using sparc64 des opcodes optimized DES implementation\n"); |
|---|
| 520 | | - return crypto_register_algs(algs, ARRAY_SIZE(algs)); |
|---|
| 453 | + if (!sparc64_has_des_opcode()) { |
|---|
| 454 | + pr_info("sparc64 des opcodes not available.\n"); |
|---|
| 455 | + return -ENODEV; |
|---|
| 521 | 456 | } |
|---|
| 522 | | - pr_info("sparc64 des opcodes not available.\n"); |
|---|
| 523 | | - return -ENODEV; |
|---|
| 457 | + pr_info("Using sparc64 des opcodes optimized DES implementation\n"); |
|---|
| 458 | + err = crypto_register_algs(cipher_algs, ARRAY_SIZE(cipher_algs)); |
|---|
| 459 | + if (err) |
|---|
| 460 | + return err; |
|---|
| 461 | + err = crypto_register_skciphers(skcipher_algs, |
|---|
| 462 | + ARRAY_SIZE(skcipher_algs)); |
|---|
| 463 | + if (err) |
|---|
| 464 | + crypto_unregister_algs(cipher_algs, ARRAY_SIZE(cipher_algs)); |
|---|
| 465 | + return err; |
|---|
| 524 | 466 | } |
|---|
| 525 | 467 | |
|---|
| 526 | 468 | static void __exit des_sparc64_mod_fini(void) |
|---|
| 527 | 469 | { |
|---|
| 528 | | - crypto_unregister_algs(algs, ARRAY_SIZE(algs)); |
|---|
| 470 | + crypto_unregister_algs(cipher_algs, ARRAY_SIZE(cipher_algs)); |
|---|
| 471 | + crypto_unregister_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs)); |
|---|
| 529 | 472 | } |
|---|
| 530 | 473 | |
|---|
| 531 | 474 | module_init(des_sparc64_mod_init); |
|---|