From patchwork Mon May 29 08:22:49 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gilad Ben-Yossef X-Patchwork-Id: 9752891 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 273E9602CC for ; Mon, 29 May 2017 08:27:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 129AC283CB for ; Mon, 29 May 2017 08:27:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 072EC283CD; Mon, 29 May 2017 08:27:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6634E2841E for ; Mon, 29 May 2017 08:27:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751100AbdE2IXm (ORCPT ); Mon, 29 May 2017 04:23:42 -0400 Received: from foss.arm.com ([217.140.101.70]:45814 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751017AbdE2IXk (ORCPT ); Mon, 29 May 2017 04:23:40 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A150280D; Mon, 29 May 2017 01:23:34 -0700 (PDT) Received: from gby.kfn.arm.com (unknown [10.45.48.155]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2DD7D3F52A; Mon, 29 May 2017 01:23:26 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Shaohua Li , Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Eric Biggers , Ofir Drang , Pavel Shilovsky , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-raid@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v2 02/11] crypto: move algif to generic async completion Date: Mon, 29 May 2017 11:22:49 +0300 Message-Id: <1496046180-21962-3-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1496046180-21962-1-git-send-email-gilad@benyossef.com> References: <1496046180-21962-1-git-send-email-gilad@benyossef.com> Sender: linux-fscrypt-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP algif starts several async crypto ops and waits for their completion. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef --- crypto/af_alg.c | 27 --------------------------- crypto/algif_aead.c | 14 +++++++------- crypto/algif_hash.c | 29 +++++++++++++---------------- crypto/algif_skcipher.c | 15 +++++++-------- include/crypto/if_alg.h | 14 -------------- 5 files changed, 27 insertions(+), 72 deletions(-) diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 3556d8e..bf4acaf 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -480,33 +480,6 @@ int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con) } EXPORT_SYMBOL_GPL(af_alg_cmsg_send); -int af_alg_wait_for_completion(int err, struct af_alg_completion *completion) -{ - switch (err) { - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&completion->completion); - reinit_completion(&completion->completion); - err = completion->err; - break; - }; - - return err; -} -EXPORT_SYMBOL_GPL(af_alg_wait_for_completion); - -void af_alg_complete(struct crypto_async_request *req, int err) -{ - struct af_alg_completion *completion = req->data; - - if (err == -EINPROGRESS) - return; - - completion->err = err; - complete(&completion->completion); -} -EXPORT_SYMBOL_GPL(af_alg_complete); - static int __init af_alg_init(void) { int err = proto_register(&alg_proto, 0); diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 8af664f..677b336 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -57,7 +57,7 @@ struct aead_ctx { void *iv; - struct af_alg_completion completion; + struct crypto_wait wait; unsigned long used; @@ -648,10 +648,10 @@ static int aead_recvmsg_sync(struct socket *sock, struct msghdr *msg, int flags) used, ctx->iv); aead_request_set_ad(&ctx->aead_req, ctx->aead_assoclen); - err = af_alg_wait_for_completion(ctx->enc ? - crypto_aead_encrypt(&ctx->aead_req) : - crypto_aead_decrypt(&ctx->aead_req), - &ctx->completion); + err = crypto_wait_req(ctx->enc ? + crypto_aead_encrypt(&ctx->aead_req) : + crypto_aead_decrypt(&ctx->aead_req), + &ctx->wait); if (err) { /* EBADMSG implies a valid cipher operation took place */ @@ -912,7 +912,7 @@ static int aead_accept_parent_nokey(void *private, struct sock *sk) ctx->enc = 0; ctx->tsgl.cur = 0; ctx->aead_assoclen = 0; - af_alg_init_completion(&ctx->completion); + crypto_init_wait(&ctx->wait); sg_init_table(ctx->tsgl.sg, ALG_MAX_PAGES); INIT_LIST_HEAD(&ctx->list); @@ -920,7 +920,7 @@ static int aead_accept_parent_nokey(void *private, struct sock *sk) aead_request_set_tfm(&ctx->aead_req, aead); aead_request_set_callback(&ctx->aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG, - af_alg_complete, &ctx->completion); + crypto_req_done, &ctx->wait); sk->sk_destruct = aead_sock_destruct; diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c index 5e92bd2..a2fa6d1 100644 --- a/crypto/algif_hash.c +++ b/crypto/algif_hash.c @@ -26,7 +26,7 @@ struct hash_ctx { u8 *result; - struct af_alg_completion completion; + struct crypto_wait wait; unsigned int len; bool more; @@ -88,8 +88,7 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg, if ((msg->msg_flags & MSG_MORE)) hash_free_result(sk, ctx); - err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req), - &ctx->completion); + err = crypto_wait_req(crypto_ahash_init(&ctx->req), &ctx->wait); if (err) goto unlock; } @@ -110,8 +109,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg, ahash_request_set_crypt(&ctx->req, ctx->sgl.sg, NULL, len); - err = af_alg_wait_for_completion(crypto_ahash_update(&ctx->req), - &ctx->completion); + err = crypto_wait_req(crypto_ahash_update(&ctx->req), + &ctx->wait); af_alg_free_sg(&ctx->sgl); if (err) goto unlock; @@ -129,8 +128,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg, goto unlock; ahash_request_set_crypt(&ctx->req, NULL, ctx->result, 0); - err = af_alg_wait_for_completion(crypto_ahash_final(&ctx->req), - &ctx->completion); + err = crypto_wait_req(crypto_ahash_final(&ctx->req), + &ctx->wait); } unlock: @@ -171,7 +170,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page, } else { if (!ctx->more) { err = crypto_ahash_init(&ctx->req); - err = af_alg_wait_for_completion(err, &ctx->completion); + err = crypto_wait_req(err, &ctx->wait); if (err) goto unlock; } @@ -179,7 +178,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page, err = crypto_ahash_update(&ctx->req); } - err = af_alg_wait_for_completion(err, &ctx->completion); + err = crypto_wait_req(err, &ctx->wait); if (err) goto unlock; @@ -215,17 +214,15 @@ static int hash_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, ahash_request_set_crypt(&ctx->req, NULL, ctx->result, 0); if (!result && !ctx->more) { - err = af_alg_wait_for_completion( - crypto_ahash_init(&ctx->req), - &ctx->completion); + err = crypto_wait_req(crypto_ahash_init(&ctx->req), &ctx->wait); if (err) goto unlock; } if (!result || ctx->more) { ctx->more = 0; - err = af_alg_wait_for_completion(crypto_ahash_final(&ctx->req), - &ctx->completion); + err = crypto_wait_req(crypto_ahash_final(&ctx->req), + &ctx->wait); if (err) goto unlock; } @@ -476,13 +473,13 @@ static int hash_accept_parent_nokey(void *private, struct sock *sk) ctx->result = NULL; ctx->len = len; ctx->more = 0; - af_alg_init_completion(&ctx->completion); + crypto_init_wait(&ctx->wait); ask->private = ctx; ahash_request_set_tfm(&ctx->req, hash); ahash_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG, - af_alg_complete, &ctx->completion); + crypto_req_done, &ctx->wait); sk->sk_destruct = hash_sock_destruct; diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index 43839b0..75fa9a5 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -43,7 +43,7 @@ struct skcipher_ctx { void *iv; - struct af_alg_completion completion; + struct crypto_wait wait; atomic_t inflight; size_t used; @@ -684,11 +684,10 @@ static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg, skcipher_request_set_crypt(&ctx->req, sg, ctx->rsgl.sg, used, ctx->iv); - err = af_alg_wait_for_completion( - ctx->enc ? - crypto_skcipher_encrypt(&ctx->req) : - crypto_skcipher_decrypt(&ctx->req), - &ctx->completion); + err = crypto_wait_req(ctx->enc ? + crypto_skcipher_encrypt(&ctx->req) : + crypto_skcipher_decrypt(&ctx->req), + &ctx->wait); free: af_alg_free_sg(&ctx->rsgl); @@ -948,14 +947,14 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk) ctx->merge = 0; ctx->enc = 0; atomic_set(&ctx->inflight, 0); - af_alg_init_completion(&ctx->completion); + crypto_init_wait(&ctx->wait); ask->private = ctx; skcipher_request_set_tfm(&ctx->req, skcipher); skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_SLEEP | CRYPTO_TFM_REQ_MAY_BACKLOG, - af_alg_complete, &ctx->completion); + crypto_req_done, &ctx->wait); sk->sk_destruct = skcipher_sock_destruct; diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index e2b9c6f..86764fb 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -14,7 +14,6 @@ #define _CRYPTO_IF_ALG_H #include -#include #include #include #include @@ -37,11 +36,6 @@ struct alg_sock { void *private; }; -struct af_alg_completion { - struct completion completion; - int err; -}; - struct af_alg_control { struct af_alg_iv *iv; int op; @@ -81,17 +75,9 @@ void af_alg_link_sg(struct af_alg_sgl *sgl_prev, struct af_alg_sgl *sgl_new); int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con); -int af_alg_wait_for_completion(int err, struct af_alg_completion *completion); -void af_alg_complete(struct crypto_async_request *req, int err); - static inline struct alg_sock *alg_sk(struct sock *sk) { return (struct alg_sock *)sk; } -static inline void af_alg_init_completion(struct af_alg_completion *completion) -{ - init_completion(&completion->completion); -} - #endif /* _CRYPTO_IF_ALG_H */