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From: "Herbert Xu" <herbert@gondor.apana.org.au>
To: Ard Biesheuvel <ardb@kernel.org>,
	Stephan Mueller <smueller@chronox.de>,
	Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
	Eric Biggers <ebiggers@kernel.org>
Subject: [v3 PATCH 9/31] crypto: cryptd - Add support for chaining
Date: Tue, 28 Jul 2020 17:18:58 +1000
Message-ID: <E1k0Jt4-0006Lq-5D@fornost.hmeau.com> (raw)
In-Reply-To: <20200728071746.GA22352@gondor.apana.org.au>

This patch makes cryptd pass along the CRYPTO_TFM_REQ_MORE flag to
its child skcipher as well as inheriting the final chunk size from
it.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

 crypto/cryptd.c |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index a1bea0f4baa88..510c23b320082 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -261,13 +261,16 @@ static void cryptd_skcipher_encrypt(struct crypto_async_request *base,
 	struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
 	struct crypto_sync_skcipher *child = ctx->child;
 	SYNC_SKCIPHER_REQUEST_ON_STACK(subreq, child);
+	unsigned int flags = req->base.flags;
 
 	if (unlikely(err == -EINPROGRESS))
 		goto out;
 
+	flags &= CRYPTO_TFM_REQ_MORE;
+	flags |= CRYPTO_TFM_REQ_MAY_SLEEP;
+
 	skcipher_request_set_sync_tfm(subreq, child);
-	skcipher_request_set_callback(subreq, CRYPTO_TFM_REQ_MAY_SLEEP,
-				      NULL, NULL);
+	skcipher_request_set_callback(subreq, flags, NULL, NULL);
 	skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
 				   req->iv);
 
@@ -289,13 +292,16 @@ static void cryptd_skcipher_decrypt(struct crypto_async_request *base,
 	struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
 	struct crypto_sync_skcipher *child = ctx->child;
 	SYNC_SKCIPHER_REQUEST_ON_STACK(subreq, child);
+	unsigned int flags = req->base.flags;
 
 	if (unlikely(err == -EINPROGRESS))
 		goto out;
 
+	flags &= CRYPTO_TFM_REQ_MORE;
+	flags |= CRYPTO_TFM_REQ_MAY_SLEEP;
+
 	skcipher_request_set_sync_tfm(subreq, child);
-	skcipher_request_set_callback(subreq, CRYPTO_TFM_REQ_MAY_SLEEP,
-				      NULL, NULL);
+	skcipher_request_set_callback(subreq, flags, NULL, NULL);
 	skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
 				   req->iv);
 
@@ -400,6 +406,7 @@ static int cryptd_create_skcipher(struct crypto_template *tmpl,
 		(alg->base.cra_flags & CRYPTO_ALG_INTERNAL);
 	inst->alg.ivsize = crypto_skcipher_alg_ivsize(alg);
 	inst->alg.chunksize = crypto_skcipher_alg_chunksize(alg);
+	inst->alg.final_chunksize = crypto_skcipher_alg_final_chunksize(alg);
 	inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg);
 	inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg);
 

  parent reply index

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28  7:17 [v3 PATCH 0/31] crypto: skcipher - Add support for no chaining and partial chaining Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 1/31] crypto: skcipher - Add final chunk size field for chaining Herbert Xu
2020-07-28 17:15   ` Eric Biggers
2020-07-28 17:22     ` Herbert Xu
2020-07-28 17:26       ` Ard Biesheuvel
2020-07-28 17:30         ` Herbert Xu
2020-07-28 17:46           ` Ard Biesheuvel
2020-07-28 22:12             ` Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 2/31] crypto: algif_skcipher - Add support for final_chunksize Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 3/31] crypto: cts - Add support for chaining Herbert Xu
2020-07-28 11:05   ` Ard Biesheuvel
2020-07-28 11:53     ` Herbert Xu
2020-07-28 11:59       ` Ard Biesheuvel
2020-07-28 12:03         ` Herbert Xu
2020-07-28 12:08           ` Ard Biesheuvel
2020-07-28 12:19             ` Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 4/31] crypto: arm64/aes-glue - Add support for chaining CTS Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 5/31] crypto: nitrox " Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 6/31] crypto: ccree " Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 7/31] crypto: skcipher - Add alg reqsize field Herbert Xu
2020-07-28  7:18 ` [v3 PATCH 8/31] crypto: skcipher - Initialise requests to zero Herbert Xu
2020-07-28 17:10   ` Eric Biggers
2020-07-29  3:38     ` Herbert Xu
2020-07-28  7:18 ` Herbert Xu [this message]
2020-07-28  7:19 ` [v3 PATCH 10/31] crypto: chacha-generic - Add support for chaining Herbert Xu
2020-08-10 15:20   ` Horia Geantă
2020-08-11  0:57     ` Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 11/31] crypto: arm/chacha " Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 12/31] crypto: arm64/chacha " Herbert Xu
2020-07-29  6:16   ` Ard Biesheuvel
2020-07-29  6:28     ` Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 13/31] crypto: mips/chacha " Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 14/31] crypto: x86/chacha " Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 15/31] crypto: inside-secure - Set final_chunksize on chacha Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 16/31] crypto: caam/qi2 " Herbert Xu
2020-08-10 15:24   ` Horia Geantă
2020-07-28  7:19 ` [v3 PATCH 17/31] crypto: ctr - Allow rfc3686 to be chained Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 18/31] crypto: crypto4xx - Remove rfc3686 implementation Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 19/31] crypto: caam - Remove rfc3686 implementations Herbert Xu
2020-08-10 16:47   ` Horia Geantă
2020-08-11  0:59     ` Herbert Xu
2020-08-11  7:32       ` Horia Geantă
2020-08-11  7:34         ` Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 20/31] crypto: nitrox - Set final_chunksize on rfc3686 Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 21/31] crypto: ccp - Remove rfc3686 implementation Herbert Xu
2020-08-06 19:16   ` John Allen
2020-07-28  7:19 ` [v3 PATCH 22/31] crypto: chelsio " Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 23/31] crypto: inside-secure - Set final_chunksize on rfc3686 Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 24/31] crypto: ixp4xx - Remove rfc3686 implementation Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 25/31] crypto: nx - Set final_chunksize on rfc3686 Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 26/31] crypto: essiv - Set final_chunksize Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 27/31] crypto: simd - Add support for chaining Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 28/31] crypto: arm64/essiv - Set final_chunksize Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 29/31] crypto: ccree - Set final_chunksize on essiv Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 30/31] crypto: kw - Set final_chunksize Herbert Xu
2020-07-28  7:19 ` [v3 PATCH 31/31] crypto: salsa20-generic - dd support for chaining Herbert Xu
2020-07-28 17:19 ` [v3 PATCH 0/31] crypto: skcipher - Add support for no chaining and partial chaining Eric Biggers
2020-07-29  3:40   ` Herbert Xu

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