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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:36 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:36 +0000 |
commit | 50ba0232fd5312410f1b65247e774244f89a628e (patch) | |
tree | fd8f2fc78e9e548af0ff9590276602ee6125be00 /arch/arm64/crypto/sm4-neon-glue.c | |
parent | Releasing progress-linux version 6.7.12-1~progress7.99u1. (diff) | |
download | linux-50ba0232fd5312410f1b65247e774244f89a628e.tar.xz linux-50ba0232fd5312410f1b65247e774244f89a628e.zip |
Merging upstream version 6.8.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm64/crypto/sm4-neon-glue.c')
-rw-r--r-- | arch/arm64/crypto/sm4-neon-glue.c | 105 |
1 files changed, 1 insertions, 104 deletions
diff --git a/arch/arm64/crypto/sm4-neon-glue.c b/arch/arm64/crypto/sm4-neon-glue.c index 7b19accf5c..e3500aca2d 100644 --- a/arch/arm64/crypto/sm4-neon-glue.c +++ b/arch/arm64/crypto/sm4-neon-glue.c @@ -22,8 +22,6 @@ asmlinkage void sm4_neon_crypt(const u32 *rkey, u8 *dst, const u8 *src, unsigned int nblocks); asmlinkage void sm4_neon_cbc_dec(const u32 *rkey_dec, u8 *dst, const u8 *src, u8 *iv, unsigned int nblocks); -asmlinkage void sm4_neon_cfb_dec(const u32 *rkey_enc, u8 *dst, const u8 *src, - u8 *iv, unsigned int nblocks); asmlinkage void sm4_neon_ctr_crypt(const u32 *rkey_enc, u8 *dst, const u8 *src, u8 *iv, unsigned int nblocks); @@ -142,90 +140,6 @@ static int sm4_cbc_decrypt(struct skcipher_request *req) return err; } -static int sm4_cfb_encrypt(struct skcipher_request *req) -{ - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm); - struct skcipher_walk walk; - unsigned int nbytes; - int err; - - err = skcipher_walk_virt(&walk, req, false); - - while ((nbytes = walk.nbytes) > 0) { - u8 keystream[SM4_BLOCK_SIZE]; - const u8 *iv = walk.iv; - const u8 *src = walk.src.virt.addr; - u8 *dst = walk.dst.virt.addr; - - while (nbytes >= SM4_BLOCK_SIZE) { - sm4_crypt_block(ctx->rkey_enc, keystream, iv); - crypto_xor_cpy(dst, src, keystream, SM4_BLOCK_SIZE); - iv = dst; - src += SM4_BLOCK_SIZE; - dst += SM4_BLOCK_SIZE; - nbytes -= SM4_BLOCK_SIZE; - } - if (iv != walk.iv) - memcpy(walk.iv, iv, SM4_BLOCK_SIZE); - - /* tail */ - if (walk.nbytes == walk.total && nbytes > 0) { - sm4_crypt_block(ctx->rkey_enc, keystream, walk.iv); - crypto_xor_cpy(dst, src, keystream, nbytes); - nbytes = 0; - } - - err = skcipher_walk_done(&walk, nbytes); - } - - return err; -} - -static int sm4_cfb_decrypt(struct skcipher_request *req) -{ - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm); - struct skcipher_walk walk; - unsigned int nbytes; - int err; - - err = skcipher_walk_virt(&walk, req, false); - - while ((nbytes = walk.nbytes) > 0) { - const u8 *src = walk.src.virt.addr; - u8 *dst = walk.dst.virt.addr; - unsigned int nblocks; - - nblocks = nbytes / SM4_BLOCK_SIZE; - if (nblocks) { - kernel_neon_begin(); - - sm4_neon_cfb_dec(ctx->rkey_enc, dst, src, - walk.iv, nblocks); - - kernel_neon_end(); - - dst += nblocks * SM4_BLOCK_SIZE; - src += nblocks * SM4_BLOCK_SIZE; - nbytes -= nblocks * SM4_BLOCK_SIZE; - } - - /* tail */ - if (walk.nbytes == walk.total && nbytes > 0) { - u8 keystream[SM4_BLOCK_SIZE]; - - sm4_crypt_block(ctx->rkey_enc, keystream, walk.iv); - crypto_xor_cpy(dst, src, keystream, nbytes); - nbytes = 0; - } - - err = skcipher_walk_done(&walk, nbytes); - } - - return err; -} - static int sm4_ctr_crypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); @@ -303,22 +217,6 @@ static struct skcipher_alg sm4_algs[] = { .decrypt = sm4_cbc_decrypt, }, { .base = { - .cra_name = "cfb(sm4)", - .cra_driver_name = "cfb-sm4-neon", - .cra_priority = 200, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct sm4_ctx), - .cra_module = THIS_MODULE, - }, - .min_keysize = SM4_KEY_SIZE, - .max_keysize = SM4_KEY_SIZE, - .ivsize = SM4_BLOCK_SIZE, - .chunksize = SM4_BLOCK_SIZE, - .setkey = sm4_setkey, - .encrypt = sm4_cfb_encrypt, - .decrypt = sm4_cfb_decrypt, - }, { - .base = { .cra_name = "ctr(sm4)", .cra_driver_name = "ctr-sm4-neon", .cra_priority = 200, @@ -349,12 +247,11 @@ static void __exit sm4_exit(void) module_init(sm4_init); module_exit(sm4_exit); -MODULE_DESCRIPTION("SM4 ECB/CBC/CFB/CTR using ARMv8 NEON"); +MODULE_DESCRIPTION("SM4 ECB/CBC/CTR using ARMv8 NEON"); MODULE_ALIAS_CRYPTO("sm4-neon"); MODULE_ALIAS_CRYPTO("sm4"); MODULE_ALIAS_CRYPTO("ecb(sm4)"); MODULE_ALIAS_CRYPTO("cbc(sm4)"); -MODULE_ALIAS_CRYPTO("cfb(sm4)"); MODULE_ALIAS_CRYPTO("ctr(sm4)"); MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>"); MODULE_LICENSE("GPL v2"); |