From d2ce2922fd395219dc936431c0a9c221dc52cc2e Mon Sep 17 00:00:00 2001 From: Corentin Labbe Date: Tue, 27 Sep 2022 07:54:43 +0000 Subject: [PATCH] crypto: rockchip - do not store mode globally [ Upstream commit 87e356c4966444866186f68f05832fdcc0f351a3 ] Storing the mode globally does not work if 2 requests are handled in the same time. We should store it in a request context. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping Signed-off-by: Corentin Labbe Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/rockchip/rk3288_crypto.h | 5 +- drivers/crypto/rockchip/rk3288_crypto_skcipher.c | 58 +++++++++++++++--------- 2 files changed, 41 insertions(+), 22 deletions(-) diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h index 2fa7131..3e60e3d 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.h +++ b/drivers/crypto/rockchip/rk3288_crypto.h @@ -245,10 +245,13 @@ struct rk_ahash_rctx { struct rk_cipher_ctx { struct rk_crypto_info *dev; unsigned int keylen; - u32 mode; u8 iv[AES_BLOCK_SIZE]; }; +struct rk_cipher_rctx { + u32 mode; +}; + enum alg_type { ALG_TYPE_HASH, ALG_TYPE_CIPHER, diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c index 8c44a19..bbd0bf5 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c +++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c @@ -76,9 +76,10 @@ static int rk_aes_ecb_encrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_AES_ECB_MODE; + rctx->mode = RK_CRYPTO_AES_ECB_MODE; return rk_handle_req(dev, req); } @@ -86,9 +87,10 @@ static int rk_aes_ecb_decrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC; + rctx->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC; return rk_handle_req(dev, req); } @@ -96,9 +98,10 @@ static int rk_aes_cbc_encrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_AES_CBC_MODE; + rctx->mode = RK_CRYPTO_AES_CBC_MODE; return rk_handle_req(dev, req); } @@ -106,9 +109,10 @@ static int rk_aes_cbc_decrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC; + rctx->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC; return rk_handle_req(dev, req); } @@ -116,9 +120,10 @@ static int rk_des_ecb_encrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = 0; + rctx->mode = 0; return rk_handle_req(dev, req); } @@ -126,9 +131,10 @@ static int rk_des_ecb_decrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_DEC; + rctx->mode = RK_CRYPTO_DEC; return rk_handle_req(dev, req); } @@ -136,9 +142,10 @@ static int rk_des_cbc_encrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC; + rctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC; return rk_handle_req(dev, req); } @@ -146,9 +153,10 @@ static int rk_des_cbc_decrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC; + rctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC; return rk_handle_req(dev, req); } @@ -156,9 +164,10 @@ static int rk_des3_ede_ecb_encrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_TDES_SELECT; + rctx->mode = RK_CRYPTO_TDES_SELECT; return rk_handle_req(dev, req); } @@ -166,9 +175,10 @@ static int rk_des3_ede_ecb_decrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC; + rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC; return rk_handle_req(dev, req); } @@ -176,9 +186,10 @@ static int rk_des3_ede_cbc_encrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC; + rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC; return rk_handle_req(dev, req); } @@ -186,9 +197,10 @@ static int rk_des3_ede_cbc_decrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_crypto_info *dev = ctx->dev; - ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC | + rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC; return rk_handle_req(dev, req); } @@ -199,6 +211,7 @@ static void rk_ablk_hw_init(struct rk_crypto_info *dev) skcipher_request_cast(dev->async_req); struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req); struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher); u32 ivsize, block, conf_reg = 0; @@ -206,22 +219,22 @@ static void rk_ablk_hw_init(struct rk_crypto_info *dev) ivsize = crypto_skcipher_ivsize(cipher); if (block == DES_BLOCK_SIZE) { - ctx->mode |= RK_CRYPTO_TDES_FIFO_MODE | + rctx->mode |= RK_CRYPTO_TDES_FIFO_MODE | RK_CRYPTO_TDES_BYTESWAP_KEY | RK_CRYPTO_TDES_BYTESWAP_IV; - CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, ctx->mode); + CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, rctx->mode); memcpy_toio(dev->reg + RK_CRYPTO_TDES_IV_0, req->iv, ivsize); conf_reg = RK_CRYPTO_DESSEL; } else { - ctx->mode |= RK_CRYPTO_AES_FIFO_MODE | + rctx->mode |= RK_CRYPTO_AES_FIFO_MODE | RK_CRYPTO_AES_KEY_CHANGE | RK_CRYPTO_AES_BYTESWAP_KEY | RK_CRYPTO_AES_BYTESWAP_IV; if (ctx->keylen == AES_KEYSIZE_192) - ctx->mode |= RK_CRYPTO_AES_192BIT_key; + rctx->mode |= RK_CRYPTO_AES_192BIT_key; else if (ctx->keylen == AES_KEYSIZE_256) - ctx->mode |= RK_CRYPTO_AES_256BIT_key; - CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, ctx->mode); + rctx->mode |= RK_CRYPTO_AES_256BIT_key; + CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, rctx->mode); memcpy_toio(dev->reg + RK_CRYPTO_AES_IV_0, req->iv, ivsize); } conf_reg |= RK_CRYPTO_BYTESWAP_BTFIFO | @@ -246,6 +259,7 @@ static int rk_set_data_start(struct rk_crypto_info *dev) struct skcipher_request *req = skcipher_request_cast(dev->async_req); struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); u32 ivsize = crypto_skcipher_ivsize(tfm); u8 *src_last_blk = page_address(sg_page(dev->sg_src)) + @@ -254,7 +268,7 @@ static int rk_set_data_start(struct rk_crypto_info *dev) /* Store the iv that need to be updated in chain mode. * And update the IV buffer to contain the next IV for decryption mode. */ - if (ctx->mode & RK_CRYPTO_DEC) { + if (rctx->mode & RK_CRYPTO_DEC) { memcpy(ctx->iv, src_last_blk, ivsize); sg_pcopy_to_buffer(dev->first, dev->src_nents, req->iv, ivsize, dev->total - ivsize); @@ -294,11 +308,12 @@ static void rk_iv_copyback(struct rk_crypto_info *dev) struct skcipher_request *req = skcipher_request_cast(dev->async_req); struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); u32 ivsize = crypto_skcipher_ivsize(tfm); /* Update the IV buffer to contain the next IV for encryption mode. */ - if (!(ctx->mode & RK_CRYPTO_DEC)) { + if (!(rctx->mode & RK_CRYPTO_DEC)) { if (dev->aligned) { memcpy(req->iv, sg_virt(dev->sg_dst) + dev->sg_dst->length - ivsize, ivsize); @@ -314,11 +329,12 @@ static void rk_update_iv(struct rk_crypto_info *dev) struct skcipher_request *req = skcipher_request_cast(dev->async_req); struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); u32 ivsize = crypto_skcipher_ivsize(tfm); u8 *new_iv = NULL; - if (ctx->mode & RK_CRYPTO_DEC) { + if (rctx->mode & RK_CRYPTO_DEC) { new_iv = ctx->iv; } else { new_iv = page_address(sg_page(dev->sg_dst)) + -- 2.7.4