From patchwork Wed Oct 18 07:00:33 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: 827474 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH3BJ0M82z9s03 for ; Wed, 18 Oct 2017 18:11:04 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933402AbdJRHCR (ORCPT ); Wed, 18 Oct 2017 03:02:17 -0400 Received: from foss.arm.com ([217.140.101.70]:33248 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932290AbdJRHCP (ORCPT ); Wed, 18 Oct 2017 03:02:15 -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 2F9C71529; Wed, 18 Oct 2017 00:02:15 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 169CF3F590; Wed, 18 Oct 2017 00:02:06 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 01/20] crypto: change transient busy return code to -ENOSPC Date: Wed, 18 Oct 2017 08:00:33 +0100 Message-Id: <1508310057-25369-2-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org The crypto API was using the -EBUSY return value to indicate both a hard failure to submit a crypto operation into a transformation provider when the latter was busy and the backlog mechanism was not enabled as well as a notification that the operation was queued into the backlog when the backlog mechanism was enabled. Having the same return code indicate two very different conditions depending on a flag is both error prone and requires extra runtime check like the following to discern between the cases: if (err == -EINPROGRESS || (err == -EBUSY && (ahash_request_flags(req) & CRYPTO_TFM_REQ_MAY_BACKLOG))) This patch changes the return code used to indicate a crypto op failed due to the transformation provider being transiently busy to -ENOSPC. Signed-off-by: Gilad Ben-Yossef --- crypto/algapi.c | 6 ++++-- crypto/cryptd.c | 4 +--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/crypto/algapi.c b/crypto/algapi.c index aa699ff..60d7366 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -897,9 +897,11 @@ int crypto_enqueue_request(struct crypto_queue *queue, int err = -EINPROGRESS; if (unlikely(queue->qlen >= queue->max_qlen)) { - err = -EBUSY; - if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { + err = -ENOSPC; goto out; + } + err = -EBUSY; if (queue->backlog == &queue->list) queue->backlog = &request->list; } diff --git a/crypto/cryptd.c b/crypto/cryptd.c index 0508c48..bd43cf5 100644 --- a/crypto/cryptd.c +++ b/crypto/cryptd.c @@ -137,16 +137,14 @@ static int cryptd_enqueue_request(struct cryptd_queue *queue, int cpu, err; struct cryptd_cpu_queue *cpu_queue; atomic_t *refcnt; - bool may_backlog; cpu = get_cpu(); cpu_queue = this_cpu_ptr(queue->cpu_queue); err = crypto_enqueue_request(&cpu_queue->queue, request); refcnt = crypto_tfm_ctx(request->tfm); - may_backlog = request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG; - if (err == -EBUSY && !may_backlog) + if (err == -ENOSPC) goto out_put_cpu; queue_work_on(cpu, kcrypto_wq, &cpu_queue->work); From patchwork Wed Oct 18 07:00:34 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: 827473 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH3BB57Dqz9t2Z for ; Wed, 18 Oct 2017 18:10:58 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935520AbdJRHCe (ORCPT ); Wed, 18 Oct 2017 03:02:34 -0400 Received: from foss.arm.com ([217.140.101.70]:33294 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932290AbdJRHCa (ORCPT ); Wed, 18 Oct 2017 03:02:30 -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 8A68D15BE; Wed, 18 Oct 2017 00:02:29 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 33F363F590; Wed, 18 Oct 2017 00:02:20 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 02/20] crypto: ccp: use -ENOSPC for transient busy indication Date: Wed, 18 Oct 2017 08:00:34 +0100 Message-Id: <1508310057-25369-3-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Replace -EBUSY with -ENOSPC when reporting transient busy indication in the absence of backlog. Signed-off-by: Gilad Ben-Yossef Reviewed-by: Gary R Hook --- Please squash this patch with the previous one when merging upstream. drivers/crypto/ccp/ccp-crypto-main.c | 8 +++----- drivers/crypto/ccp/ccp-dev.c | 7 +++++-- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/crypto/ccp/ccp-crypto-main.c b/drivers/crypto/ccp/ccp-crypto-main.c index 35a9de7..b95d199 100644 --- a/drivers/crypto/ccp/ccp-crypto-main.c +++ b/drivers/crypto/ccp/ccp-crypto-main.c @@ -222,9 +222,10 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd) /* Check if the cmd can/should be queued */ if (req_queue.cmd_count >= CCP_CRYPTO_MAX_QLEN) { - ret = -EBUSY; - if (!(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG)) + if (!(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG)) { + ret = -ENOSPC; goto e_lock; + } } /* Look for an entry with the same tfm. If there is a cmd @@ -243,9 +244,6 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd) ret = ccp_enqueue_cmd(crypto_cmd->cmd); if (!ccp_crypto_success(ret)) goto e_lock; /* Error, don't queue it */ - if ((ret == -EBUSY) && - !(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG)) - goto e_lock; /* Not backlogging, don't queue it */ } if (req_queue.cmd_count >= CCP_CRYPTO_MAX_QLEN) { diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c index 4e029b1..1b5035d 100644 --- a/drivers/crypto/ccp/ccp-dev.c +++ b/drivers/crypto/ccp/ccp-dev.c @@ -292,9 +292,12 @@ int ccp_enqueue_cmd(struct ccp_cmd *cmd) i = ccp->cmd_q_count; if (ccp->cmd_count >= MAX_CMD_QLEN) { - ret = -EBUSY; - if (cmd->flags & CCP_CMD_MAY_BACKLOG) + if (cmd->flags & CCP_CMD_MAY_BACKLOG) { + ret = -EBUSY; list_add_tail(&cmd->entry, &ccp->backlog); + } else { + ret = -ENOSPC; + } } else { ret = -EINPROGRESS; ccp->cmd_count++; From patchwork Wed Oct 18 07:00:35 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: 827437 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH3175y6Yz9s03 for ; Wed, 18 Oct 2017 18:03:07 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966499AbdJRHCq (ORCPT ); Wed, 18 Oct 2017 03:02:46 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33336 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966495AbdJRHCn (ORCPT ); Wed, 18 Oct 2017 03:02:43 -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 73DA4F; Wed, 18 Oct 2017 00:02:43 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 22BFA3F590; Wed, 18 Oct 2017 00:02:34 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 03/20] net: use -ENOSPC for transient busy indication Date: Wed, 18 Oct 2017 08:00:35 +0100 Message-Id: <1508310057-25369-4-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Replace -EBUSY with -ENOSPC when handling transient busy indication in the absence of backlog. Signed-off-by: Gilad Ben-Yossef --- Please squash this patch with the previous one when merging upstream. net/ipv4/ah4.c | 2 +- net/ipv4/esp4.c | 2 +- net/ipv6/ah6.c | 2 +- net/ipv6/esp6.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c index 37db44f..4dd95cd 100644 --- a/net/ipv4/ah4.c +++ b/net/ipv4/ah4.c @@ -240,7 +240,7 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb) if (err == -EINPROGRESS) goto out; - if (err == -EBUSY) + if (err == -ENOSPC) err = NET_XMIT_DROP; goto out_free; } diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index b00e4a4..d57aa64 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -432,7 +432,7 @@ int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info * case -EINPROGRESS: goto error; - case -EBUSY: + case -ENOSPC: err = NET_XMIT_DROP; break; diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index 7802b72..3bd9d80 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -443,7 +443,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb) if (err == -EINPROGRESS) goto out; - if (err == -EBUSY) + if (err == -ENOSPC) err = NET_XMIT_DROP; goto out_free; } diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c index 89910e2..c04d995 100644 --- a/net/ipv6/esp6.c +++ b/net/ipv6/esp6.c @@ -396,7 +396,7 @@ int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info case -EINPROGRESS: goto error; - case -EBUSY: + case -ENOSPC: err = NET_XMIT_DROP; break; From patchwork Wed Oct 18 07:00:36 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: 827445 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH33J5WDGz9s03 for ; Wed, 18 Oct 2017 18:05:00 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966654AbdJRHE5 (ORCPT ); Wed, 18 Oct 2017 03:04:57 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33394 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966527AbdJRHC5 (ORCPT ); Wed, 18 Oct 2017 03:02:57 -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 0156B1529; Wed, 18 Oct 2017 00:02:57 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B1F983F590; Wed, 18 Oct 2017 00:02:48 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 04/20] crypto: remove redundant backlog checks on EBUSY Date: Wed, 18 Oct 2017 08:00:36 +0100 Message-Id: <1508310057-25369-5-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Now that -EBUSY return code only indicates backlog queueing we can safely remove the now redundant check for the CRYPTO_TFM_REQ_MAY_BACKLOG flag when -EBUSY is returned. Signed-off-by: Gilad Ben-Yossef --- crypto/ahash.c | 12 +++--------- crypto/cts.c | 6 ++---- crypto/lrw.c | 8 ++------ crypto/rsa-pkcs1pad.c | 16 ++++------------ crypto/xts.c | 8 ++------ 5 files changed, 13 insertions(+), 37 deletions(-) diff --git a/crypto/ahash.c b/crypto/ahash.c index 5e8666e..3a35d67 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -334,9 +334,7 @@ static int ahash_op_unaligned(struct ahash_request *req, return err; err = op(req); - if (err == -EINPROGRESS || - (err == -EBUSY && (ahash_request_flags(req) & - CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err == -EINPROGRESS || err == -EBUSY) return err; ahash_restore_req(req, err); @@ -394,9 +392,7 @@ static int ahash_def_finup_finish1(struct ahash_request *req, int err) req->base.complete = ahash_def_finup_done2; err = crypto_ahash_reqtfm(req)->final(req); - if (err == -EINPROGRESS || - (err == -EBUSY && (ahash_request_flags(req) & - CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err == -EINPROGRESS || err == -EBUSY) return err; out: @@ -432,9 +428,7 @@ static int ahash_def_finup(struct ahash_request *req) return err; err = tfm->update(req); - if (err == -EINPROGRESS || - (err == -EBUSY && (ahash_request_flags(req) & - CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err == -EINPROGRESS || err == -EBUSY) return err; return ahash_def_finup_finish1(req, err); diff --git a/crypto/cts.c b/crypto/cts.c index 243f591..4773c18 100644 --- a/crypto/cts.c +++ b/crypto/cts.c @@ -136,8 +136,7 @@ static void crypto_cts_encrypt_done(struct crypto_async_request *areq, int err) goto out; err = cts_cbc_encrypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return; out: @@ -229,8 +228,7 @@ static void crypto_cts_decrypt_done(struct crypto_async_request *areq, int err) goto out; err = cts_cbc_decrypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return; out: diff --git a/crypto/lrw.c b/crypto/lrw.c index 92df312..cbbd7c5 100644 --- a/crypto/lrw.c +++ b/crypto/lrw.c @@ -328,9 +328,7 @@ static int do_encrypt(struct skcipher_request *req, int err) crypto_skcipher_encrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; } @@ -380,9 +378,7 @@ static int do_decrypt(struct skcipher_request *req, int err) crypto_skcipher_decrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; } diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index 407c64b..2908f93 100644 --- a/crypto/rsa-pkcs1pad.c +++ b/crypto/rsa-pkcs1pad.c @@ -279,9 +279,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req) req->dst, ctx->key_size - 1, req->dst_len); err = crypto_akcipher_encrypt(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_encrypt_sign_complete(req, err); return err; @@ -383,9 +381,7 @@ static int pkcs1pad_decrypt(struct akcipher_request *req) ctx->key_size); err = crypto_akcipher_decrypt(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_decrypt_complete(req, err); return err; @@ -440,9 +436,7 @@ static int pkcs1pad_sign(struct akcipher_request *req) req->dst, ctx->key_size - 1, req->dst_len); err = crypto_akcipher_sign(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_encrypt_sign_complete(req, err); return err; @@ -561,9 +555,7 @@ static int pkcs1pad_verify(struct akcipher_request *req) ctx->key_size); err = crypto_akcipher_verify(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_verify_complete(req, err); return err; diff --git a/crypto/xts.c b/crypto/xts.c index e31828e..f317c48 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -269,9 +269,7 @@ static int do_encrypt(struct skcipher_request *req, int err) crypto_skcipher_encrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; } @@ -321,9 +319,7 @@ static int do_decrypt(struct skcipher_request *req, int err) crypto_skcipher_decrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; } From patchwork Wed Oct 18 07:00:37 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: 827472 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH3B30PR2z9t4P for ; Wed, 18 Oct 2017 18:10:51 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966522AbdJRHDN (ORCPT ); Wed, 18 Oct 2017 03:03:13 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33446 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966495AbdJRHDL (ORCPT ); Wed, 18 Oct 2017 03:03:11 -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 EA513F; Wed, 18 Oct 2017 00:03:10 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 96C273F590; Wed, 18 Oct 2017 00:03:02 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 05/20] crypto: marvell/cesa: remove redundant backlog checks on EBUSY Date: Wed, 18 Oct 2017 08:00:37 +0100 Message-Id: <1508310057-25369-6-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Now that -EBUSY return code only indicates backlog queueing we can safely remove the now redundant check for the CRYPTO_TFM_REQ_MAY_BACKLOG flag when -EBUSY is returned. Signed-off-by: Gilad Ben-Yossef Acked-by: Boris Brezillon --- drivers/crypto/marvell/cesa.c | 3 +-- drivers/crypto/marvell/cesa.h | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c index b657e7c..ff73aa5 100644 --- a/drivers/crypto/marvell/cesa.c +++ b/drivers/crypto/marvell/cesa.c @@ -181,8 +181,7 @@ int mv_cesa_queue_req(struct crypto_async_request *req, spin_lock_bh(&engine->lock); ret = crypto_enqueue_request(&engine->queue, req); if ((mv_cesa_req_get_type(creq) == CESA_DMA_REQ) && - (ret == -EINPROGRESS || - (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + (ret == -EINPROGRESS || ret == -EBUSY)) mv_cesa_tdma_chain(engine, creq); spin_unlock_bh(&engine->lock); diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h index b7872f6..63c8457 100644 --- a/drivers/crypto/marvell/cesa.h +++ b/drivers/crypto/marvell/cesa.h @@ -763,7 +763,7 @@ static inline int mv_cesa_req_needs_cleanup(struct crypto_async_request *req, * the backlog and will be processed later. There's no need to * clean it up. */ - if (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG) + if (ret == -EBUSY) return false; /* Request wasn't queued, we need to clean it up */ From patchwork Wed Oct 18 07:00:38 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: 827471 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH39v2vS2z9t2l for ; Wed, 18 Oct 2017 18:10:43 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761203AbdJRHD2 (ORCPT ); Wed, 18 Oct 2017 03:03:28 -0400 Received: from foss.arm.com ([217.140.101.70]:33524 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756802AbdJRHD0 (ORCPT ); Wed, 18 Oct 2017 03:03:26 -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 7F2D815BE; Wed, 18 Oct 2017 00:03:25 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B39A83F590; Wed, 18 Oct 2017 00:03:16 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , Eric Biggers , Jonathan Cameron , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 06/20] crypto: introduce crypto wait for async op Date: Wed, 18 Oct 2017 08:00:38 +0100 Message-Id: <1508310057-25369-7-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Invoking a possibly async. crypto op and waiting for completion while correctly handling backlog processing is a common task in the crypto API implementation and outside users of it. This patch adds a generic implementation for doing so in preparation for using it across the board instead of hand rolled versions. Signed-off-by: Gilad Ben-Yossef CC: Eric Biggers CC: Jonathan Cameron --- crypto/api.c | 13 +++++++++++++ include/linux/crypto.h | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+) diff --git a/crypto/api.c b/crypto/api.c index 941cd4c..2a2479d 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "internal.h" LIST_HEAD(crypto_alg_list); @@ -595,5 +596,17 @@ int crypto_has_alg(const char *name, u32 type, u32 mask) } EXPORT_SYMBOL_GPL(crypto_has_alg); +void crypto_req_done(struct crypto_async_request *req, int err) +{ + struct crypto_wait *wait = req->data; + + if (err == -EINPROGRESS) + return; + + wait->err = err; + complete(&wait->completion); +} +EXPORT_SYMBOL_GPL(crypto_req_done); + MODULE_DESCRIPTION("Cryptographic core API"); MODULE_LICENSE("GPL"); diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 84da997..78508ca 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -24,6 +24,7 @@ #include #include #include +#include /* * Autoloaded crypto modules should only use a prefixed name to avoid allowing @@ -468,6 +469,45 @@ struct crypto_alg { } CRYPTO_MINALIGN_ATTR; /* + * A helper struct for waiting for completion of async crypto ops + */ +struct crypto_wait { + struct completion completion; + int err; +}; + +/* + * Macro for declaring a crypto op async wait object on stack + */ +#define DECLARE_CRYPTO_WAIT(_wait) \ + struct crypto_wait _wait = { \ + COMPLETION_INITIALIZER_ONSTACK((_wait).completion), 0 } + +/* + * Async ops completion helper functioons + */ +void crypto_req_done(struct crypto_async_request *req, int err); + +static inline int crypto_wait_req(int err, struct crypto_wait *wait) +{ + switch (err) { + case -EINPROGRESS: + case -EBUSY: + wait_for_completion(&wait->completion); + reinit_completion(&wait->completion); + err = wait->err; + break; + }; + + return err; +} + +static inline void crypto_init_wait(struct crypto_wait *wait) +{ + init_completion(&wait->completion); +} + +/* * Algorithm registration interface. */ int crypto_register_alg(struct crypto_alg *alg); From patchwork Wed Oct 18 07:00:39 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: 827470 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH39m1xttz9t2Z for ; Wed, 18 Oct 2017 18:10:36 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761250AbdJRHDm (ORCPT ); Wed, 18 Oct 2017 03:03:42 -0400 Received: from foss.arm.com ([217.140.101.70]:33566 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756802AbdJRHDk (ORCPT ); Wed, 18 Oct 2017 03:03:40 -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 0027BF; Wed, 18 Oct 2017 00:03:40 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id ABC893F590; Wed, 18 Oct 2017 00:03:31 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 07/20] crypto: move algif to generic async completion Date: Wed, 18 Oct 2017 08:00:39 +0100 Message-Id: <1508310057-25369-8-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org 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 | 8 ++++---- crypto/algif_hash.c | 30 ++++++++++++++---------------- crypto/algif_skcipher.c | 9 ++++----- include/crypto/if_alg.h | 15 +-------------- 5 files changed, 23 insertions(+), 66 deletions(-) diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 337cf38..85cea9d 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -481,33 +481,6 @@ 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); - /** * af_alg_alloc_tsgl - allocate the TX SGL * diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 516b38c..aacae08 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -278,11 +278,11 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, /* Synchronous operation */ aead_request_set_callback(&areq->cra_u.aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG, - af_alg_complete, &ctx->completion); - err = af_alg_wait_for_completion(ctx->enc ? + crypto_req_done, &ctx->wait); + err = crypto_wait_req(ctx->enc ? crypto_aead_encrypt(&areq->cra_u.aead_req) : crypto_aead_decrypt(&areq->cra_u.aead_req), - &ctx->completion); + &ctx->wait); } /* AIO operation in progress */ @@ -554,7 +554,7 @@ static int aead_accept_parent_nokey(void *private, struct sock *sk) ctx->merge = 0; ctx->enc = 0; ctx->aead_assoclen = 0; - af_alg_init_completion(&ctx->completion); + crypto_init_wait(&ctx->wait); ask->private = ctx; diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c index 5e92bd2..76d2e71 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 +214,16 @@ 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 +474,13 @@ 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 8ae4170..9954b07 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -129,12 +129,11 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, skcipher_request_set_callback(&areq->cra_u.skcipher_req, CRYPTO_TFM_REQ_MAY_SLEEP | CRYPTO_TFM_REQ_MAY_BACKLOG, - af_alg_complete, - &ctx->completion); - err = af_alg_wait_for_completion(ctx->enc ? + crypto_req_done, &ctx->wait); + err = crypto_wait_req(ctx->enc ? crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) : crypto_skcipher_decrypt(&areq->cra_u.skcipher_req), - &ctx->completion); + &ctx->wait); } /* AIO operation in progress */ @@ -388,7 +387,7 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk) ctx->more = 0; ctx->merge = 0; ctx->enc = 0; - af_alg_init_completion(&ctx->completion); + crypto_init_wait(&ctx->wait); ask->private = ctx; diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index 75ec9c6..6abf0a3 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -40,11 +40,6 @@ 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; @@ -152,7 +147,7 @@ struct af_alg_ctx { void *iv; size_t aead_assoclen; - struct af_alg_completion completion; + struct crypto_wait wait; size_t used; size_t rcvused; @@ -177,19 +172,11 @@ 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); -} - /** * Size of available buffer for sending data from user space to kernel. * From patchwork Wed Oct 18 07:00:40 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: 827469 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH39Y4Xqlz9s03 for ; Wed, 18 Oct 2017 18:10:25 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761307AbdJRHDz (ORCPT ); Wed, 18 Oct 2017 03:03:55 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33620 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756802AbdJRHDx (ORCPT ); Wed, 18 Oct 2017 03:03:53 -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 245FA1529; Wed, 18 Oct 2017 00:03:53 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0DEA43F590; Wed, 18 Oct 2017 00:03:44 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 08/20] crypto: move pub key to generic async completion Date: Wed, 18 Oct 2017 08:00:40 +0100 Message-Id: <1508310057-25369-9-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org public_key_verify_signature() is starting an async crypto op and waiting for it to complete. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef --- crypto/asymmetric_keys/public_key.c | 28 ++++------------------------ 1 file changed, 4 insertions(+), 24 deletions(-) diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c index 3cd6e12..d916235 100644 --- a/crypto/asymmetric_keys/public_key.c +++ b/crypto/asymmetric_keys/public_key.c @@ -57,29 +57,13 @@ static void public_key_destroy(void *payload0, void *payload3) public_key_signature_free(payload3); } -struct public_key_completion { - struct completion completion; - int err; -}; - -static void public_key_verify_done(struct crypto_async_request *req, int err) -{ - struct public_key_completion *compl = req->data; - - if (err == -EINPROGRESS) - return; - - compl->err = err; - complete(&compl->completion); -} - /* * Verify a signature using a public key. */ int public_key_verify_signature(const struct public_key *pkey, const struct public_key_signature *sig) { - struct public_key_completion compl; + struct crypto_wait cwait; struct crypto_akcipher *tfm; struct akcipher_request *req; struct scatterlist sig_sg, digest_sg; @@ -131,20 +115,16 @@ int public_key_verify_signature(const struct public_key *pkey, sg_init_one(&digest_sg, output, outlen); akcipher_request_set_crypt(req, &sig_sg, &digest_sg, sig->s_size, outlen); - init_completion(&compl.completion); + crypto_init_wait(&cwait); akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - public_key_verify_done, &compl); + crypto_req_done, &cwait); /* Perform the verification calculation. This doesn't actually do the * verification, but rather calculates the hash expected by the * signature and returns that to us. */ - ret = crypto_akcipher_verify(req); - if ((ret == -EINPROGRESS) || (ret == -EBUSY)) { - wait_for_completion(&compl.completion); - ret = compl.err; - } + ret = crypto_wait_req(crypto_akcipher_verify(req), &cwait); if (ret < 0) goto out_free_output; From patchwork Wed Oct 18 07:00:41 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: 827468 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH39N5vNTz9s03 for ; Wed, 18 Oct 2017 18:10:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966604AbdJRHEL (ORCPT ); Wed, 18 Oct 2017 03:04:11 -0400 Received: from foss.arm.com ([217.140.101.70]:33672 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966601AbdJRHEI (ORCPT ); Wed, 18 Oct 2017 03:04:08 -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 90D1515BE; Wed, 18 Oct 2017 00:04:07 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 763543F590; Wed, 18 Oct 2017 00:03:59 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 09/20] crypto: move drbg to generic async completion Date: Wed, 18 Oct 2017 08:00:41 +0100 Message-Id: <1508310057-25369-10-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org DRBG is starting an async. crypto op and waiting for it complete. Move it over to generic code doing the same. The code now also passes CRYPTO_TFM_REQ_MAY_SLEEP flag indicating crypto request memory allocation may use GFP_KERNEL which should be perfectly fine as the code is obviously sleeping for the completion of the request any way. Signed-off-by: Gilad Ben-Yossef --- crypto/drbg.c | 36 +++++++++--------------------------- include/crypto/drbg.h | 3 +-- 2 files changed, 10 insertions(+), 29 deletions(-) diff --git a/crypto/drbg.c b/crypto/drbg.c index 7001839..4faa278 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -1651,16 +1651,6 @@ static int drbg_fini_sym_kernel(struct drbg_state *drbg) return 0; } -static void drbg_skcipher_cb(struct crypto_async_request *req, int error) -{ - struct drbg_state *drbg = req->data; - - if (error == -EINPROGRESS) - return; - drbg->ctr_async_err = error; - complete(&drbg->ctr_completion); -} - static int drbg_init_sym_kernel(struct drbg_state *drbg) { struct crypto_cipher *tfm; @@ -1691,7 +1681,7 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg) return PTR_ERR(sk_tfm); } drbg->ctr_handle = sk_tfm; - init_completion(&drbg->ctr_completion); + crypto_init_wait(&drbg->ctr_wait); req = skcipher_request_alloc(sk_tfm, GFP_KERNEL); if (!req) { @@ -1700,8 +1690,9 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg) return -ENOMEM; } drbg->ctr_req = req; - skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - drbg_skcipher_cb, drbg); + skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | + CRYPTO_TFM_REQ_MAY_SLEEP, + crypto_req_done, &drbg->ctr_wait); alignmask = crypto_skcipher_alignmask(sk_tfm); drbg->ctr_null_value_buf = kzalloc(DRBG_CTR_NULL_LEN + alignmask, @@ -1762,21 +1753,12 @@ static int drbg_kcapi_sym_ctr(struct drbg_state *drbg, /* Output buffer may not be valid for SGL, use scratchpad */ skcipher_request_set_crypt(drbg->ctr_req, &sg_in, &sg_out, cryptlen, drbg->V); - ret = crypto_skcipher_encrypt(drbg->ctr_req); - switch (ret) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&drbg->ctr_completion); - if (!drbg->ctr_async_err) { - reinit_completion(&drbg->ctr_completion); - break; - } - default: + ret = crypto_wait_req(crypto_skcipher_encrypt(drbg->ctr_req), + &drbg->ctr_wait); + if (ret) goto out; - } - init_completion(&drbg->ctr_completion); + + crypto_init_wait(&drbg->ctr_wait); memcpy(outbuf, drbg->outscratchpad, cryptlen); diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h index 22f884c..8f94110 100644 --- a/include/crypto/drbg.h +++ b/include/crypto/drbg.h @@ -126,8 +126,7 @@ struct drbg_state { __u8 *ctr_null_value; /* CTR mode aligned zero buf */ __u8 *outscratchpadbuf; /* CTR mode output scratchpad */ __u8 *outscratchpad; /* CTR mode aligned outbuf */ - struct completion ctr_completion; /* CTR mode async handler */ - int ctr_async_err; /* CTR mode async error */ + struct crypto_wait ctr_wait; /* CTR mode async wait obj */ bool seeded; /* DRBG fully seeded? */ bool pr; /* Prediction resistance enabled? */ From patchwork Wed Oct 18 07:00:42 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: 827466 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH39B6RX7z9s03 for ; Wed, 18 Oct 2017 18:10:06 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966630AbdJRHEY (ORCPT ); Wed, 18 Oct 2017 03:04:24 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33716 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966601AbdJRHEV (ORCPT ); Wed, 18 Oct 2017 03:04:21 -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 569591529; Wed, 18 Oct 2017 00:04:21 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3AAA73F590; Wed, 18 Oct 2017 00:04:13 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 10/20] crypto: move gcm to generic async completion Date: Wed, 18 Oct 2017 08:00:42 +0100 Message-Id: <1508310057-25369-11-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org gcm is starting an async. crypto op and waiting for it complete. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef --- crypto/gcm.c | 32 ++++++-------------------------- 1 file changed, 6 insertions(+), 26 deletions(-) diff --git a/crypto/gcm.c b/crypto/gcm.c index 80cf6cf..8589681 100644 --- a/crypto/gcm.c +++ b/crypto/gcm.c @@ -17,7 +17,6 @@ #include #include #include "internal.h" -#include #include #include #include @@ -79,11 +78,6 @@ struct crypto_gcm_req_priv_ctx { } u; }; -struct crypto_gcm_setkey_result { - int err; - struct completion completion; -}; - static struct { u8 buf[16]; struct scatterlist sg; @@ -99,17 +93,6 @@ static inline struct crypto_gcm_req_priv_ctx *crypto_gcm_reqctx( return (void *)PTR_ALIGN((u8 *)aead_request_ctx(req), align + 1); } -static void crypto_gcm_setkey_done(struct crypto_async_request *req, int err) -{ - struct crypto_gcm_setkey_result *result = req->data; - - if (err == -EINPROGRESS) - return; - - result->err = err; - complete(&result->completion); -} - static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key, unsigned int keylen) { @@ -120,7 +103,7 @@ static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key, be128 hash; u8 iv[16]; - struct crypto_gcm_setkey_result result; + struct crypto_wait wait; struct scatterlist sg[1]; struct skcipher_request req; @@ -141,21 +124,18 @@ static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key, if (!data) return -ENOMEM; - init_completion(&data->result.completion); + crypto_init_wait(&data->wait); sg_init_one(data->sg, &data->hash, sizeof(data->hash)); skcipher_request_set_tfm(&data->req, ctr); skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP | CRYPTO_TFM_REQ_MAY_BACKLOG, - crypto_gcm_setkey_done, - &data->result); + crypto_req_done, + &data->wait); skcipher_request_set_crypt(&data->req, data->sg, data->sg, sizeof(data->hash), data->iv); - err = crypto_skcipher_encrypt(&data->req); - if (err == -EINPROGRESS || err == -EBUSY) { - wait_for_completion(&data->result.completion); - err = data->result.err; - } + err = crypto_wait_req(crypto_skcipher_encrypt(&data->req), + &data->wait); if (err) goto out; From patchwork Wed Oct 18 07:00:43 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: 827465 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH3881nB2z9s03 for ; Wed, 18 Oct 2017 18:09:12 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966657AbdJRHEk (ORCPT ); Wed, 18 Oct 2017 03:04:40 -0400 Received: from foss.arm.com ([217.140.101.70]:33784 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966654AbdJRHEh (ORCPT ); Wed, 18 Oct 2017 03:04:37 -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 56AAE15BE; Wed, 18 Oct 2017 00:04:36 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0B7F73F590; Wed, 18 Oct 2017 00:04:27 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 11/20] crypto: move testmgr to generic async completion Date: Wed, 18 Oct 2017 08:00:43 +0100 Message-Id: <1508310057-25369-12-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org testmgr is starting async. crypto ops and waiting for them to complete. Move it over to generic code doing the same. This also provides a test of the generic crypto async. wait code. Signed-off-by: Gilad Ben-Yossef --- crypto/testmgr.c | 204 ++++++++++++++++++------------------------------------- 1 file changed, 66 insertions(+), 138 deletions(-) diff --git a/crypto/testmgr.c b/crypto/testmgr.c index dd9c7f1..3996fd5 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -76,11 +76,6 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask) #define ENCRYPT 1 #define DECRYPT 0 -struct tcrypt_result { - struct completion completion; - int err; -}; - struct aead_test_suite { struct { const struct aead_testvec *vecs; @@ -155,17 +150,6 @@ static void hexdump(unsigned char *buf, unsigned int len) buf, len, false); } -static void tcrypt_complete(struct crypto_async_request *req, int err) -{ - struct tcrypt_result *res = req->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - static int testmgr_alloc_buf(char *buf[XBUFSIZE]) { int i; @@ -193,20 +177,10 @@ static void testmgr_free_buf(char *buf[XBUFSIZE]) free_page((unsigned long)buf[i]); } -static int wait_async_op(struct tcrypt_result *tr, int ret) -{ - if (ret == -EINPROGRESS || ret == -EBUSY) { - wait_for_completion(&tr->completion); - reinit_completion(&tr->completion); - ret = tr->err; - } - return ret; -} - static int ahash_partial_update(struct ahash_request **preq, struct crypto_ahash *tfm, const struct hash_testvec *template, void *hash_buff, int k, int temp, struct scatterlist *sg, - const char *algo, char *result, struct tcrypt_result *tresult) + const char *algo, char *result, struct crypto_wait *wait) { char *state; struct ahash_request *req; @@ -236,7 +210,7 @@ static int ahash_partial_update(struct ahash_request **preq, } ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, tresult); + crypto_req_done, wait); memcpy(hash_buff, template->plaintext + temp, template->tap[k]); @@ -247,7 +221,7 @@ static int ahash_partial_update(struct ahash_request **preq, pr_err("alg: hash: Failed to import() for %s\n", algo); goto out; } - ret = wait_async_op(tresult, crypto_ahash_update(req)); + ret = crypto_wait_req(crypto_ahash_update(req), wait); if (ret) goto out; *preq = req; @@ -272,7 +246,7 @@ static int __test_hash(struct crypto_ahash *tfm, char *result; char *key; struct ahash_request *req; - struct tcrypt_result tresult; + struct crypto_wait wait; void *hash_buff; char *xbuf[XBUFSIZE]; int ret = -ENOMEM; @@ -286,7 +260,7 @@ static int __test_hash(struct crypto_ahash *tfm, if (testmgr_alloc_buf(xbuf)) goto out_nobuf; - init_completion(&tresult.completion); + crypto_init_wait(&wait); req = ahash_request_alloc(tfm, GFP_KERNEL); if (!req) { @@ -295,7 +269,7 @@ static int __test_hash(struct crypto_ahash *tfm, goto out_noreq; } ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &tresult); + crypto_req_done, &wait); j = 0; for (i = 0; i < tcount; i++) { @@ -335,26 +309,26 @@ static int __test_hash(struct crypto_ahash *tfm, ahash_request_set_crypt(req, sg, result, template[i].psize); if (use_digest) { - ret = wait_async_op(&tresult, crypto_ahash_digest(req)); + ret = crypto_wait_req(crypto_ahash_digest(req), &wait); if (ret) { pr_err("alg: hash: digest failed on test %d " "for %s: ret=%d\n", j, algo, -ret); goto out; } } else { - ret = wait_async_op(&tresult, crypto_ahash_init(req)); + ret = crypto_wait_req(crypto_ahash_init(req), &wait); if (ret) { pr_err("alg: hash: init failed on test %d " "for %s: ret=%d\n", j, algo, -ret); goto out; } - ret = wait_async_op(&tresult, crypto_ahash_update(req)); + ret = crypto_wait_req(crypto_ahash_update(req), &wait); if (ret) { pr_err("alg: hash: update failed on test %d " "for %s: ret=%d\n", j, algo, -ret); goto out; } - ret = wait_async_op(&tresult, crypto_ahash_final(req)); + ret = crypto_wait_req(crypto_ahash_final(req), &wait); if (ret) { pr_err("alg: hash: final failed on test %d " "for %s: ret=%d\n", j, algo, -ret); @@ -420,22 +394,10 @@ static int __test_hash(struct crypto_ahash *tfm, } ahash_request_set_crypt(req, sg, result, template[i].psize); - ret = crypto_ahash_digest(req); - switch (ret) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&tresult.completion); - reinit_completion(&tresult.completion); - ret = tresult.err; - if (!ret) - break; - /* fall through */ - default: - printk(KERN_ERR "alg: hash: digest failed " - "on chunking test %d for %s: " - "ret=%d\n", j, algo, -ret); + ret = crypto_wait_req(crypto_ahash_digest(req), &wait); + if (ret) { + pr_err("alg: hash: digest failed on chunking test %d for %s: ret=%d\n", + j, algo, -ret); goto out; } @@ -486,13 +448,13 @@ static int __test_hash(struct crypto_ahash *tfm, } ahash_request_set_crypt(req, sg, result, template[i].tap[0]); - ret = wait_async_op(&tresult, crypto_ahash_init(req)); + ret = crypto_wait_req(crypto_ahash_init(req), &wait); if (ret) { pr_err("alg: hash: init failed on test %d for %s: ret=%d\n", j, algo, -ret); goto out; } - ret = wait_async_op(&tresult, crypto_ahash_update(req)); + ret = crypto_wait_req(crypto_ahash_update(req), &wait); if (ret) { pr_err("alg: hash: update failed on test %d for %s: ret=%d\n", j, algo, -ret); @@ -503,7 +465,7 @@ static int __test_hash(struct crypto_ahash *tfm, for (k = 1; k < template[i].np; k++) { ret = ahash_partial_update(&req, tfm, &template[i], hash_buff, k, temp, &sg[0], algo, result, - &tresult); + &wait); if (ret) { pr_err("alg: hash: partial update failed on test %d for %s: ret=%d\n", j, algo, -ret); @@ -511,7 +473,7 @@ static int __test_hash(struct crypto_ahash *tfm, } temp += template[i].tap[k]; } - ret = wait_async_op(&tresult, crypto_ahash_final(req)); + ret = crypto_wait_req(crypto_ahash_final(req), &wait); if (ret) { pr_err("alg: hash: final failed on test %d for %s: ret=%d\n", j, algo, -ret); @@ -580,7 +542,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc, struct scatterlist *sg; struct scatterlist *sgout; const char *e, *d; - struct tcrypt_result result; + struct crypto_wait wait; unsigned int authsize, iv_len; void *input; void *output; @@ -619,7 +581,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc, else e = "decryption"; - init_completion(&result.completion); + crypto_init_wait(&wait); req = aead_request_alloc(tfm, GFP_KERNEL); if (!req) { @@ -629,7 +591,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc, } aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); + crypto_req_done, &wait); iv_len = crypto_aead_ivsize(tfm); @@ -709,7 +671,8 @@ static int __test_aead(struct crypto_aead *tfm, int enc, aead_request_set_ad(req, template[i].alen); - ret = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req); + ret = crypto_wait_req(enc ? crypto_aead_encrypt(req) + : crypto_aead_decrypt(req), &wait); switch (ret) { case 0: @@ -722,13 +685,6 @@ static int __test_aead(struct crypto_aead *tfm, int enc, goto out; } break; - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&result.completion); - reinit_completion(&result.completion); - ret = result.err; - if (!ret) - break; case -EBADMSG: if (template[i].novrfy) /* verification failure was expected */ @@ -866,7 +822,8 @@ static int __test_aead(struct crypto_aead *tfm, int enc, aead_request_set_ad(req, template[i].alen); - ret = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req); + ret = crypto_wait_req(enc ? crypto_aead_encrypt(req) + : crypto_aead_decrypt(req), &wait); switch (ret) { case 0: @@ -879,13 +836,6 @@ static int __test_aead(struct crypto_aead *tfm, int enc, goto out; } break; - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&result.completion); - reinit_completion(&result.completion); - ret = result.err; - if (!ret) - break; case -EBADMSG: if (template[i].novrfy) /* verification failure was expected */ @@ -1083,7 +1033,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc, struct scatterlist sg[8]; struct scatterlist sgout[8]; const char *e, *d; - struct tcrypt_result result; + struct crypto_wait wait; void *data; char iv[MAX_IVLEN]; char *xbuf[XBUFSIZE]; @@ -1107,7 +1057,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc, else e = "decryption"; - init_completion(&result.completion); + crypto_init_wait(&wait); req = skcipher_request_alloc(tfm, GFP_KERNEL); if (!req) { @@ -1117,7 +1067,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc, } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); + crypto_req_done, &wait); j = 0; for (i = 0; i < tcount; i++) { @@ -1164,21 +1114,10 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc, skcipher_request_set_crypt(req, sg, (diff_dst) ? sgout : sg, template[i].ilen, iv); - ret = enc ? crypto_skcipher_encrypt(req) : - crypto_skcipher_decrypt(req); + ret = crypto_wait_req(enc ? crypto_skcipher_encrypt(req) : + crypto_skcipher_decrypt(req), &wait); - switch (ret) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&result.completion); - reinit_completion(&result.completion); - ret = result.err; - if (!ret) - break; - /* fall through */ - default: + if (ret) { pr_err("alg: skcipher%s: %s failed on test %d for %s: ret=%d\n", d, e, j, algo, -ret); goto out; @@ -1272,21 +1211,10 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc, skcipher_request_set_crypt(req, sg, (diff_dst) ? sgout : sg, template[i].ilen, iv); - ret = enc ? crypto_skcipher_encrypt(req) : - crypto_skcipher_decrypt(req); + ret = crypto_wait_req(enc ? crypto_skcipher_encrypt(req) : + crypto_skcipher_decrypt(req), &wait); - switch (ret) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&result.completion); - reinit_completion(&result.completion); - ret = result.err; - if (!ret) - break; - /* fall through */ - default: + if (ret) { pr_err("alg: skcipher%s: %s failed on chunk test %d for %s: ret=%d\n", d, e, j, algo, -ret); goto out; @@ -1462,7 +1390,7 @@ static int test_acomp(struct crypto_acomp *tfm, int ret; struct scatterlist src, dst; struct acomp_req *req; - struct tcrypt_result result; + struct crypto_wait wait; output = kmalloc(COMP_BUF_SIZE, GFP_KERNEL); if (!output) @@ -1486,7 +1414,7 @@ static int test_acomp(struct crypto_acomp *tfm, } memset(output, 0, dlen); - init_completion(&result.completion); + crypto_init_wait(&wait); sg_init_one(&src, input_vec, ilen); sg_init_one(&dst, output, dlen); @@ -1501,9 +1429,9 @@ static int test_acomp(struct crypto_acomp *tfm, acomp_request_set_params(req, &src, &dst, ilen, dlen); acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); + crypto_req_done, &wait); - ret = wait_async_op(&result, crypto_acomp_compress(req)); + ret = crypto_wait_req(crypto_acomp_compress(req), &wait); if (ret) { pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n", i + 1, algo, -ret); @@ -1516,10 +1444,10 @@ static int test_acomp(struct crypto_acomp *tfm, dlen = COMP_BUF_SIZE; sg_init_one(&src, output, ilen); sg_init_one(&dst, decomp_out, dlen); - init_completion(&result.completion); + crypto_init_wait(&wait); acomp_request_set_params(req, &src, &dst, ilen, dlen); - ret = wait_async_op(&result, crypto_acomp_decompress(req)); + ret = crypto_wait_req(crypto_acomp_decompress(req), &wait); if (ret) { pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n", i + 1, algo, -ret); @@ -1563,7 +1491,7 @@ static int test_acomp(struct crypto_acomp *tfm, } memset(output, 0, dlen); - init_completion(&result.completion); + crypto_init_wait(&wait); sg_init_one(&src, input_vec, ilen); sg_init_one(&dst, output, dlen); @@ -1578,9 +1506,9 @@ static int test_acomp(struct crypto_acomp *tfm, acomp_request_set_params(req, &src, &dst, ilen, dlen); acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); + crypto_req_done, &wait); - ret = wait_async_op(&result, crypto_acomp_decompress(req)); + ret = crypto_wait_req(crypto_acomp_decompress(req), &wait); if (ret) { pr_err("alg: acomp: decompression failed on test %d for %s: ret=%d\n", i + 1, algo, -ret); @@ -2000,7 +1928,7 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec, void *a_public = NULL; void *a_ss = NULL; void *shared_secret = NULL; - struct tcrypt_result result; + struct crypto_wait wait; unsigned int out_len_max; int err = -ENOMEM; struct scatterlist src, dst; @@ -2009,7 +1937,7 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec, if (!req) return err; - init_completion(&result.completion); + crypto_init_wait(&wait); err = crypto_kpp_set_secret(tfm, vec->secret, vec->secret_size); if (err < 0) @@ -2027,10 +1955,10 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec, sg_init_one(&dst, output_buf, out_len_max); kpp_request_set_output(req, &dst, out_len_max); kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); + crypto_req_done, &wait); /* Compute party A's public key */ - err = wait_async_op(&result, crypto_kpp_generate_public_key(req)); + err = crypto_wait_req(crypto_kpp_generate_public_key(req), &wait); if (err) { pr_err("alg: %s: Party A: generate public key test failed. err %d\n", alg, err); @@ -2069,8 +1997,8 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec, kpp_request_set_input(req, &src, vec->b_public_size); kpp_request_set_output(req, &dst, out_len_max); kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); - err = wait_async_op(&result, crypto_kpp_compute_shared_secret(req)); + crypto_req_done, &wait); + err = crypto_wait_req(crypto_kpp_compute_shared_secret(req), &wait); if (err) { pr_err("alg: %s: Party A: compute shared secret test failed. err %d\n", alg, err); @@ -2100,9 +2028,9 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec, kpp_request_set_input(req, &src, vec->expected_a_public_size); kpp_request_set_output(req, &dst, out_len_max); kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); - err = wait_async_op(&result, - crypto_kpp_compute_shared_secret(req)); + crypto_req_done, &wait); + err = crypto_wait_req(crypto_kpp_compute_shared_secret(req), + &wait); if (err) { pr_err("alg: %s: Party B: compute shared secret failed. err %d\n", alg, err); @@ -2179,7 +2107,7 @@ static int test_akcipher_one(struct crypto_akcipher *tfm, struct akcipher_request *req; void *outbuf_enc = NULL; void *outbuf_dec = NULL; - struct tcrypt_result result; + struct crypto_wait wait; unsigned int out_len_max, out_len = 0; int err = -ENOMEM; struct scatterlist src, dst, src_tab[2]; @@ -2191,7 +2119,7 @@ static int test_akcipher_one(struct crypto_akcipher *tfm, if (!req) goto free_xbuf; - init_completion(&result.completion); + crypto_init_wait(&wait); if (vecs->public_key_vec) err = crypto_akcipher_set_pub_key(tfm, vecs->key, @@ -2220,13 +2148,13 @@ static int test_akcipher_one(struct crypto_akcipher *tfm, akcipher_request_set_crypt(req, src_tab, &dst, vecs->m_size, out_len_max); akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); + crypto_req_done, &wait); - err = wait_async_op(&result, vecs->siggen_sigver_test ? - /* Run asymmetric signature generation */ - crypto_akcipher_sign(req) : - /* Run asymmetric encrypt */ - crypto_akcipher_encrypt(req)); + err = crypto_wait_req(vecs->siggen_sigver_test ? + /* Run asymmetric signature generation */ + crypto_akcipher_sign(req) : + /* Run asymmetric encrypt */ + crypto_akcipher_encrypt(req), &wait); if (err) { pr_err("alg: akcipher: encrypt test failed. err %d\n", err); goto free_all; @@ -2261,14 +2189,14 @@ static int test_akcipher_one(struct crypto_akcipher *tfm, sg_init_one(&src, xbuf[0], vecs->c_size); sg_init_one(&dst, outbuf_dec, out_len_max); - init_completion(&result.completion); + crypto_init_wait(&wait); akcipher_request_set_crypt(req, &src, &dst, vecs->c_size, out_len_max); - err = wait_async_op(&result, vecs->siggen_sigver_test ? - /* Run asymmetric signature verification */ - crypto_akcipher_verify(req) : - /* Run asymmetric decrypt */ - crypto_akcipher_decrypt(req)); + err = crypto_wait_req(vecs->siggen_sigver_test ? + /* Run asymmetric signature verification */ + crypto_akcipher_verify(req) : + /* Run asymmetric decrypt */ + crypto_akcipher_decrypt(req), &wait); if (err) { pr_err("alg: akcipher: decrypt test failed. err %d\n", err); goto free_all; From patchwork Wed Oct 18 07:00:44 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: 827463 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH37s5tqYz9s03 for ; Wed, 18 Oct 2017 18:08:57 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966685AbdJRHEx (ORCPT ); Wed, 18 Oct 2017 03:04:53 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33834 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966654AbdJRHEu (ORCPT ); Wed, 18 Oct 2017 03:04:50 -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 2C03BF; Wed, 18 Oct 2017 00:04:50 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D3FA53F590; Wed, 18 Oct 2017 00:04:41 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 12/20] fscrypt: move to generic async completion Date: Wed, 18 Oct 2017 08:00:44 +0100 Message-Id: <1508310057-25369-13-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org fscrypt starts several async. crypto ops and waiting for them to complete. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef --- fs/crypto/crypto.c | 28 ++++------------------------ fs/crypto/fname.c | 36 ++++++------------------------------ fs/crypto/fscrypt_private.h | 10 ---------- fs/crypto/keyinfo.c | 21 +++------------------ 4 files changed, 13 insertions(+), 82 deletions(-) diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index c7835df..80a3cad 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -126,21 +126,6 @@ struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, gfp_t gfp_flags) } EXPORT_SYMBOL(fscrypt_get_ctx); -/** - * page_crypt_complete() - completion callback for page crypto - * @req: The asynchronous cipher request context - * @res: The result of the cipher operation - */ -static void page_crypt_complete(struct crypto_async_request *req, int res) -{ - struct fscrypt_completion_result *ecr = req->data; - - if (res == -EINPROGRESS) - return; - ecr->res = res; - complete(&ecr->completion); -} - int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, u64 lblk_num, struct page *src_page, struct page *dest_page, unsigned int len, @@ -151,7 +136,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, u8 padding[FS_IV_SIZE - sizeof(__le64)]; } iv; struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct scatterlist dst, src; struct fscrypt_info *ci = inode->i_crypt_info; struct crypto_skcipher *tfm = ci->ci_ctfm; @@ -179,7 +164,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, skcipher_request_set_callback( req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - page_crypt_complete, &ecr); + crypto_req_done, &wait); sg_init_table(&dst, 1); sg_set_page(&dst, dest_page, len, offs); @@ -187,14 +172,9 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, sg_set_page(&src, src_page, len, offs); skcipher_request_set_crypt(req, &src, &dst, len, &iv); if (rw == FS_DECRYPT) - res = crypto_skcipher_decrypt(req); + res = crypto_wait_req(crypto_skcipher_decrypt(req), &wait); else - res = crypto_skcipher_encrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - BUG_ON(req->base.data != &ecr); - wait_for_completion(&ecr.completion); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait); skcipher_request_free(req); if (res) { printk_ratelimited(KERN_ERR diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c index ad9f814..a80a0d3 100644 --- a/fs/crypto/fname.c +++ b/fs/crypto/fname.c @@ -15,21 +15,6 @@ #include "fscrypt_private.h" /** - * fname_crypt_complete() - completion callback for filename crypto - * @req: The asynchronous cipher request context - * @res: The result of the cipher operation - */ -static void fname_crypt_complete(struct crypto_async_request *req, int res) -{ - struct fscrypt_completion_result *ecr = req->data; - - if (res == -EINPROGRESS) - return; - ecr->res = res; - complete(&ecr->completion); -} - -/** * fname_encrypt() - encrypt a filename * * The caller must have allocated sufficient memory for the @oname string. @@ -40,7 +25,7 @@ static int fname_encrypt(struct inode *inode, const struct qstr *iname, struct fscrypt_str *oname) { struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct fscrypt_info *ci = inode->i_crypt_info; struct crypto_skcipher *tfm = ci->ci_ctfm; int res = 0; @@ -76,17 +61,12 @@ static int fname_encrypt(struct inode *inode, } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - fname_crypt_complete, &ecr); + crypto_req_done, &wait); sg_init_one(&sg, oname->name, cryptlen); skcipher_request_set_crypt(req, &sg, &sg, cryptlen, iv); /* Do the encryption */ - res = crypto_skcipher_encrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - /* Request is being completed asynchronously; wait for it */ - wait_for_completion(&ecr.completion); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait); skcipher_request_free(req); if (res < 0) { printk_ratelimited(KERN_ERR @@ -110,7 +90,7 @@ static int fname_decrypt(struct inode *inode, struct fscrypt_str *oname) { struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct scatterlist src_sg, dst_sg; struct fscrypt_info *ci = inode->i_crypt_info; struct crypto_skcipher *tfm = ci->ci_ctfm; @@ -131,7 +111,7 @@ static int fname_decrypt(struct inode *inode, } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - fname_crypt_complete, &ecr); + crypto_req_done, &wait); /* Initialize IV */ memset(iv, 0, FS_CRYPTO_BLOCK_SIZE); @@ -140,11 +120,7 @@ static int fname_decrypt(struct inode *inode, sg_init_one(&src_sg, iname->name, iname->len); sg_init_one(&dst_sg, oname->name, oname->len); skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv); - res = crypto_skcipher_decrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - wait_for_completion(&ecr.completion); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_decrypt(req), &wait); skcipher_request_free(req); if (res < 0) { printk_ratelimited(KERN_ERR diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h index a1d5021..c0f1881 100644 --- a/fs/crypto/fscrypt_private.h +++ b/fs/crypto/fscrypt_private.h @@ -69,16 +69,6 @@ typedef enum { #define FS_CTX_REQUIRES_FREE_ENCRYPT_FL 0x00000001 #define FS_CTX_HAS_BOUNCE_BUFFER_FL 0x00000002 -struct fscrypt_completion_result { - struct completion completion; - int res; -}; - -#define DECLARE_FS_COMPLETION_RESULT(ecr) \ - struct fscrypt_completion_result ecr = { \ - COMPLETION_INITIALIZER_ONSTACK((ecr).completion), 0 } - - /* crypto.c */ extern int fscrypt_initialize(unsigned int cop_flags); extern struct workqueue_struct *fscrypt_read_workqueue; diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c index 018c588..3c84cac 100644 --- a/fs/crypto/keyinfo.c +++ b/fs/crypto/keyinfo.c @@ -17,17 +17,6 @@ static struct crypto_shash *essiv_hash_tfm; -static void derive_crypt_complete(struct crypto_async_request *req, int rc) -{ - struct fscrypt_completion_result *ecr = req->data; - - if (rc == -EINPROGRESS) - return; - - ecr->res = rc; - complete(&ecr->completion); -} - /** * derive_key_aes() - Derive a key using AES-128-ECB * @deriving_key: Encryption key used for derivation. @@ -42,7 +31,7 @@ static int derive_key_aes(u8 deriving_key[FS_AES_128_ECB_KEY_SIZE], { int res = 0; struct skcipher_request *req = NULL; - DECLARE_FS_COMPLETION_RESULT(ecr); + DECLARE_CRYPTO_WAIT(wait); struct scatterlist src_sg, dst_sg; struct crypto_skcipher *tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0); @@ -59,7 +48,7 @@ static int derive_key_aes(u8 deriving_key[FS_AES_128_ECB_KEY_SIZE], } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - derive_crypt_complete, &ecr); + crypto_req_done, &wait); res = crypto_skcipher_setkey(tfm, deriving_key, FS_AES_128_ECB_KEY_SIZE); if (res < 0) @@ -69,11 +58,7 @@ static int derive_key_aes(u8 deriving_key[FS_AES_128_ECB_KEY_SIZE], sg_init_one(&dst_sg, derived_raw_key, source_key->size); skcipher_request_set_crypt(req, &src_sg, &dst_sg, source_key->size, NULL); - res = crypto_skcipher_encrypt(req); - if (res == -EINPROGRESS || res == -EBUSY) { - wait_for_completion(&ecr.completion); - res = ecr.res; - } + res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait); out: skcipher_request_free(req); crypto_free_skcipher(tfm); From patchwork Wed Oct 18 07:00:45 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: 827461 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH37G5v6Nz9s03 for ; Wed, 18 Oct 2017 18:08:26 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966727AbdJRHFI (ORCPT ); Wed, 18 Oct 2017 03:05:08 -0400 Received: from foss.arm.com ([217.140.101.70]:33888 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966527AbdJRHFE (ORCPT ); Wed, 18 Oct 2017 03:05:04 -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 1BD91165D; Wed, 18 Oct 2017 00:05:04 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8DACA3F590; Wed, 18 Oct 2017 00:04:55 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , Mikulas Patocka , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 13/20] dm: move dm-verity to generic async completion Date: Wed, 18 Oct 2017 08:00:45 +0100 Message-Id: <1508310057-25369-14-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org dm-verity is starting async. crypto ops and waiting for them to complete. Move it over to generic code doing the same. This also avoids a future potential data coruption bug created by the use of wait_for_completion_interruptible() without dealing correctly with an interrupt aborting the wait prior to the async op finishing, should this code ever move to a context where signals are not masked. Signed-off-by: Gilad Ben-Yossef CC: Mikulas Patocka --- drivers/md/dm-verity-target.c | 81 +++++++++++-------------------------------- drivers/md/dm-verity.h | 5 --- 2 files changed, 20 insertions(+), 66 deletions(-) diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c index bda3cac..811ad28 100644 --- a/drivers/md/dm-verity-target.c +++ b/drivers/md/dm-verity-target.c @@ -92,74 +92,33 @@ static sector_t verity_position_at_level(struct dm_verity *v, sector_t block, return block >> (level * v->hash_per_block_bits); } -/* - * Callback function for asynchrnous crypto API completion notification - */ -static void verity_op_done(struct crypto_async_request *base, int err) -{ - struct verity_result *res = (struct verity_result *)base->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - -/* - * Wait for async crypto API callback - */ -static inline int verity_complete_op(struct verity_result *res, int ret) -{ - switch (ret) { - case 0: - break; - - case -EINPROGRESS: - case -EBUSY: - ret = wait_for_completion_interruptible(&res->completion); - if (!ret) - ret = res->err; - reinit_completion(&res->completion); - break; - - default: - DMERR("verity_wait_hash: crypto op submission failed: %d", ret); - } - - if (unlikely(ret < 0)) - DMERR("verity_wait_hash: crypto op failed: %d", ret); - - return ret; -} - static int verity_hash_update(struct dm_verity *v, struct ahash_request *req, const u8 *data, size_t len, - struct verity_result *res) + struct crypto_wait *wait) { struct scatterlist sg; sg_init_one(&sg, data, len); ahash_request_set_crypt(req, &sg, NULL, len); - return verity_complete_op(res, crypto_ahash_update(req)); + return crypto_wait_req(crypto_ahash_update(req), wait); } /* * Wrapper for crypto_ahash_init, which handles verity salting. */ static int verity_hash_init(struct dm_verity *v, struct ahash_request *req, - struct verity_result *res) + struct crypto_wait *wait) { int r; ahash_request_set_tfm(req, v->tfm); ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP | CRYPTO_TFM_REQ_MAY_BACKLOG, - verity_op_done, (void *)res); - init_completion(&res->completion); + crypto_req_done, (void *)wait); + crypto_init_wait(wait); - r = verity_complete_op(res, crypto_ahash_init(req)); + r = crypto_wait_req(crypto_ahash_init(req), wait); if (unlikely(r < 0)) { DMERR("crypto_ahash_init failed: %d", r); @@ -167,18 +126,18 @@ static int verity_hash_init(struct dm_verity *v, struct ahash_request *req, } if (likely(v->salt_size && (v->version >= 1))) - r = verity_hash_update(v, req, v->salt, v->salt_size, res); + r = verity_hash_update(v, req, v->salt, v->salt_size, wait); return r; } static int verity_hash_final(struct dm_verity *v, struct ahash_request *req, - u8 *digest, struct verity_result *res) + u8 *digest, struct crypto_wait *wait) { int r; if (unlikely(v->salt_size && (!v->version))) { - r = verity_hash_update(v, req, v->salt, v->salt_size, res); + r = verity_hash_update(v, req, v->salt, v->salt_size, wait); if (r < 0) { DMERR("verity_hash_final failed updating salt: %d", r); @@ -187,7 +146,7 @@ static int verity_hash_final(struct dm_verity *v, struct ahash_request *req, } ahash_request_set_crypt(req, NULL, digest, 0); - r = verity_complete_op(res, crypto_ahash_final(req)); + r = crypto_wait_req(crypto_ahash_final(req), wait); out: return r; } @@ -196,17 +155,17 @@ int verity_hash(struct dm_verity *v, struct ahash_request *req, const u8 *data, size_t len, u8 *digest) { int r; - struct verity_result res; + struct crypto_wait wait; - r = verity_hash_init(v, req, &res); + r = verity_hash_init(v, req, &wait); if (unlikely(r < 0)) goto out; - r = verity_hash_update(v, req, data, len, &res); + r = verity_hash_update(v, req, data, len, &wait); if (unlikely(r < 0)) goto out; - r = verity_hash_final(v, req, digest, &res); + r = verity_hash_final(v, req, digest, &wait); out: return r; @@ -389,7 +348,7 @@ int verity_hash_for_block(struct dm_verity *v, struct dm_verity_io *io, * Calculates the digest for the given bio */ int verity_for_io_block(struct dm_verity *v, struct dm_verity_io *io, - struct bvec_iter *iter, struct verity_result *res) + struct bvec_iter *iter, struct crypto_wait *wait) { unsigned int todo = 1 << v->data_dev_block_bits; struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_io_data_size); @@ -414,7 +373,7 @@ int verity_for_io_block(struct dm_verity *v, struct dm_verity_io *io, */ sg_set_page(&sg, bv.bv_page, len, bv.bv_offset); ahash_request_set_crypt(req, &sg, NULL, len); - r = verity_complete_op(res, crypto_ahash_update(req)); + r = crypto_wait_req(crypto_ahash_update(req), wait); if (unlikely(r < 0)) { DMERR("verity_for_io_block crypto op failed: %d", r); @@ -482,7 +441,7 @@ static int verity_verify_io(struct dm_verity_io *io) struct dm_verity *v = io->v; struct bvec_iter start; unsigned b; - struct verity_result res; + struct crypto_wait wait; for (b = 0; b < io->n_blocks; b++) { int r; @@ -507,17 +466,17 @@ static int verity_verify_io(struct dm_verity_io *io) continue; } - r = verity_hash_init(v, req, &res); + r = verity_hash_init(v, req, &wait); if (unlikely(r < 0)) return r; start = io->iter; - r = verity_for_io_block(v, io, &io->iter, &res); + r = verity_for_io_block(v, io, &io->iter, &wait); if (unlikely(r < 0)) return r; r = verity_hash_final(v, req, verity_io_real_digest(v, io), - &res); + &wait); if (unlikely(r < 0)) return r; diff --git a/drivers/md/dm-verity.h b/drivers/md/dm-verity.h index a59e0ad..b675bc0 100644 --- a/drivers/md/dm-verity.h +++ b/drivers/md/dm-verity.h @@ -90,11 +90,6 @@ struct dm_verity_io { */ }; -struct verity_result { - struct completion completion; - int err; -}; - static inline struct ahash_request *verity_io_hash_req(struct dm_verity *v, struct dm_verity_io *io) { From patchwork Wed Oct 18 07:00:46 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: 827446 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH33l2qM0z9s03 for ; Wed, 18 Oct 2017 18:05:23 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966752AbdJRHFV (ORCPT ); Wed, 18 Oct 2017 03:05:21 -0400 Received: from foss.arm.com ([217.140.101.70]:33942 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966527AbdJRHFS (ORCPT ); Wed, 18 Oct 2017 03:05:18 -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 1F02815BE; Wed, 18 Oct 2017 00:05:18 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C135C3F590; Wed, 18 Oct 2017 00:05:09 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 14/20] cifs: move to generic async completion Date: Wed, 18 Oct 2017 08:00:46 +0100 Message-Id: <1508310057-25369-15-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org cifs starts an async. crypto op and waits for their completion. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef Acked-by: Pavel Shilovsky --- fs/cifs/smb2ops.c | 30 ++++-------------------------- 1 file changed, 4 insertions(+), 26 deletions(-) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index bdb963d..e067404 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2087,22 +2087,6 @@ init_sg(struct smb_rqst *rqst, u8 *sign) return sg; } -struct cifs_crypt_result { - int err; - struct completion completion; -}; - -static void cifs_crypt_complete(struct crypto_async_request *req, int err) -{ - struct cifs_crypt_result *res = req->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - static int smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) { @@ -2143,12 +2127,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) struct aead_request *req; char *iv; unsigned int iv_len; - struct cifs_crypt_result result = {0, }; + DECLARE_CRYPTO_WAIT(wait); struct crypto_aead *tfm; unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); - init_completion(&result.completion); - rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key); if (rc) { cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__, @@ -2208,14 +2190,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) aead_request_set_ad(req, assoc_data_len); aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - cifs_crypt_complete, &result); + crypto_req_done, &wait); - rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req); - - if (rc == -EINPROGRESS || rc == -EBUSY) { - wait_for_completion(&result.completion); - rc = result.err; - } + rc = crypto_wait_req(enc ? crypto_aead_encrypt(req) + : crypto_aead_decrypt(req), &wait); if (!rc && enc) memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE); From patchwork Wed Oct 18 07:00:47 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: 827459 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH36v2xpYz9s03 for ; Wed, 18 Oct 2017 18:08:07 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966779AbdJRHFe (ORCPT ); Wed, 18 Oct 2017 03:05:34 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:33996 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966527AbdJRHFc (ORCPT ); Wed, 18 Oct 2017 03:05:32 -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 E6D301529; Wed, 18 Oct 2017 00:05:31 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C166E3F590; Wed, 18 Oct 2017 00:05:23 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 15/20] ima: move to generic async completion Date: Wed, 18 Oct 2017 08:00:47 +0100 Message-Id: <1508310057-25369-16-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org ima starts several async crypto ops and waits for their completions. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef Acked-by: Mimi Zohar --- security/integrity/ima/ima_crypto.c | 56 +++++++++++-------------------------- 1 file changed, 17 insertions(+), 39 deletions(-) diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c index a856d8c..9057b16 100644 --- a/security/integrity/ima/ima_crypto.c +++ b/security/integrity/ima/ima_crypto.c @@ -27,11 +27,6 @@ #include "ima.h" -struct ahash_completion { - struct completion completion; - int err; -}; - /* minimum file size for ahash use */ static unsigned long ima_ahash_minsize; module_param_named(ahash_minsize, ima_ahash_minsize, ulong, 0644); @@ -196,30 +191,13 @@ static void ima_free_atfm(struct crypto_ahash *tfm) crypto_free_ahash(tfm); } -static void ahash_complete(struct crypto_async_request *req, int err) +static inline int ahash_wait(int err, struct crypto_wait *wait) { - struct ahash_completion *res = req->data; - if (err == -EINPROGRESS) - return; - res->err = err; - complete(&res->completion); -} + err = crypto_wait_req(err, wait); -static int ahash_wait(int err, struct ahash_completion *res) -{ - switch (err) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - wait_for_completion(&res->completion); - reinit_completion(&res->completion); - err = res->err; - /* fall through */ - default: + if (err) pr_crit_ratelimited("ahash calculation failed: err: %d\n", err); - } return err; } @@ -233,7 +211,7 @@ static int ima_calc_file_hash_atfm(struct file *file, int rc, read = 0, rbuf_len, active = 0, ahash_rc = 0; struct ahash_request *req; struct scatterlist sg[1]; - struct ahash_completion res; + struct crypto_wait wait; size_t rbuf_size[2]; hash->length = crypto_ahash_digestsize(tfm); @@ -242,12 +220,12 @@ static int ima_calc_file_hash_atfm(struct file *file, if (!req) return -ENOMEM; - init_completion(&res.completion); + crypto_init_wait(&wait); ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - ahash_complete, &res); + crypto_req_done, &wait); - rc = ahash_wait(crypto_ahash_init(req), &res); + rc = ahash_wait(crypto_ahash_init(req), &wait); if (rc) goto out1; @@ -288,7 +266,7 @@ static int ima_calc_file_hash_atfm(struct file *file, * read/request, wait for the completion of the * previous ahash_update() request. */ - rc = ahash_wait(ahash_rc, &res); + rc = ahash_wait(ahash_rc, &wait); if (rc) goto out3; } @@ -304,7 +282,7 @@ static int ima_calc_file_hash_atfm(struct file *file, * read/request, wait for the completion of the * previous ahash_update() request. */ - rc = ahash_wait(ahash_rc, &res); + rc = ahash_wait(ahash_rc, &wait); if (rc) goto out3; } @@ -318,7 +296,7 @@ static int ima_calc_file_hash_atfm(struct file *file, active = !active; /* swap buffers, if we use two */ } /* wait for the last update request to complete */ - rc = ahash_wait(ahash_rc, &res); + rc = ahash_wait(ahash_rc, &wait); out3: if (read) file->f_mode &= ~FMODE_READ; @@ -327,7 +305,7 @@ static int ima_calc_file_hash_atfm(struct file *file, out2: if (!rc) { ahash_request_set_crypt(req, NULL, hash->digest, 0); - rc = ahash_wait(crypto_ahash_final(req), &res); + rc = ahash_wait(crypto_ahash_final(req), &wait); } out1: ahash_request_free(req); @@ -537,7 +515,7 @@ static int calc_buffer_ahash_atfm(const void *buf, loff_t len, { struct ahash_request *req; struct scatterlist sg; - struct ahash_completion res; + struct crypto_wait wait; int rc, ahash_rc = 0; hash->length = crypto_ahash_digestsize(tfm); @@ -546,12 +524,12 @@ static int calc_buffer_ahash_atfm(const void *buf, loff_t len, if (!req) return -ENOMEM; - init_completion(&res.completion); + crypto_init_wait(&wait); ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - ahash_complete, &res); + crypto_req_done, &wait); - rc = ahash_wait(crypto_ahash_init(req), &res); + rc = ahash_wait(crypto_ahash_init(req), &wait); if (rc) goto out; @@ -561,10 +539,10 @@ static int calc_buffer_ahash_atfm(const void *buf, loff_t len, ahash_rc = crypto_ahash_update(req); /* wait for the update request to complete */ - rc = ahash_wait(ahash_rc, &res); + rc = ahash_wait(ahash_rc, &wait); if (!rc) { ahash_request_set_crypt(req, NULL, hash->digest, 0); - rc = ahash_wait(crypto_ahash_final(req), &res); + rc = ahash_wait(crypto_ahash_final(req), &wait); } out: ahash_request_free(req); From patchwork Wed Oct 18 07:00:48 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: 827458 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH36g1lQDz9s03 for ; Wed, 18 Oct 2017 18:07:55 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966806AbdJRHFu (ORCPT ); Wed, 18 Oct 2017 03:05:50 -0400 Received: from foss.arm.com ([217.140.101.70]:34054 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761310AbdJRHFr (ORCPT ); Wed, 18 Oct 2017 03:05:47 -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 A5E2915BE; Wed, 18 Oct 2017 00:05:46 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 947FA3F590; Wed, 18 Oct 2017 00:05:37 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 16/20] crypto: tcrypt: move to generic async completion Date: Wed, 18 Oct 2017 08:00:48 +0100 Message-Id: <1508310057-25369-17-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org tcrypt starts several async crypto ops and waits for their completions. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef --- crypto/tcrypt.c | 84 +++++++++++++++++---------------------------------------- 1 file changed, 25 insertions(+), 59 deletions(-) diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index a371c072..7fa7047 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -79,34 +79,11 @@ static char *check[] = { NULL }; -struct tcrypt_result { - struct completion completion; - int err; -}; - -static void tcrypt_complete(struct crypto_async_request *req, int err) -{ - struct tcrypt_result *res = req->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - static inline int do_one_aead_op(struct aead_request *req, int ret) { - if (ret == -EINPROGRESS || ret == -EBUSY) { - struct tcrypt_result *tr = req->base.data; + struct crypto_wait *wait = req->base.data; - ret = wait_for_completion_interruptible(&tr->completion); - if (!ret) - ret = tr->err; - reinit_completion(&tr->completion); - } - - return ret; + return crypto_wait_req(ret, wait); } static int test_aead_jiffies(struct aead_request *req, int enc, @@ -248,7 +225,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs, char *axbuf[XBUFSIZE]; unsigned int *b_size; unsigned int iv_len; - struct tcrypt_result result; + struct crypto_wait wait; iv = kzalloc(MAX_IVLEN, GFP_KERNEL); if (!iv) @@ -284,7 +261,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs, goto out_notfm; } - init_completion(&result.completion); + crypto_init_wait(&wait); printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo, get_driver_name(crypto_aead, tfm), e); @@ -296,7 +273,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs, } aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &result); + crypto_req_done, &wait); i = 0; do { @@ -396,21 +373,16 @@ static void test_hash_sg_init(struct scatterlist *sg) static inline int do_one_ahash_op(struct ahash_request *req, int ret) { - if (ret == -EINPROGRESS || ret == -EBUSY) { - struct tcrypt_result *tr = req->base.data; + struct crypto_wait *wait = req->base.data; - wait_for_completion(&tr->completion); - reinit_completion(&tr->completion); - ret = tr->err; - } - return ret; + return crypto_wait_req(ret, wait); } struct test_mb_ahash_data { struct scatterlist sg[TVMEMSIZE]; char result[64]; struct ahash_request *req; - struct tcrypt_result tresult; + struct crypto_wait wait; char *xbuf[XBUFSIZE]; }; @@ -439,7 +411,7 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec, if (testmgr_alloc_buf(data[i].xbuf)) goto out; - init_completion(&data[i].tresult.completion); + crypto_init_wait(&data[i].wait); data[i].req = ahash_request_alloc(tfm, GFP_KERNEL); if (!data[i].req) { @@ -448,8 +420,8 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec, goto out; } - ahash_request_set_callback(data[i].req, 0, - tcrypt_complete, &data[i].tresult); + ahash_request_set_callback(data[i].req, 0, crypto_req_done, + &data[i].wait); test_hash_sg_init(data[i].sg); } @@ -491,16 +463,16 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec, if (ret) break; - complete(&data[k].tresult.completion); - data[k].tresult.err = 0; + crypto_req_done(&data[k].req->base, 0); } for (j = 0; j < k; j++) { - struct tcrypt_result *tr = &data[j].tresult; + struct crypto_wait *wait = &data[j].wait; + int wait_ret; - wait_for_completion(&tr->completion); - if (tr->err) - ret = tr->err; + wait_ret = crypto_wait_req(-EINPROGRESS, wait); + if (wait_ret) + ret = wait_ret; } end = get_cycles(); @@ -678,7 +650,7 @@ static void test_ahash_speed_common(const char *algo, unsigned int secs, struct hash_speed *speed, unsigned mask) { struct scatterlist sg[TVMEMSIZE]; - struct tcrypt_result tresult; + struct crypto_wait wait; struct ahash_request *req; struct crypto_ahash *tfm; char *output; @@ -707,9 +679,9 @@ static void test_ahash_speed_common(const char *algo, unsigned int secs, goto out; } - init_completion(&tresult.completion); + crypto_init_wait(&wait); ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &tresult); + crypto_req_done, &wait); output = kmalloc(MAX_DIGEST_SIZE, GFP_KERNEL); if (!output) @@ -764,15 +736,9 @@ static void test_hash_speed(const char *algo, unsigned int secs, static inline int do_one_acipher_op(struct skcipher_request *req, int ret) { - if (ret == -EINPROGRESS || ret == -EBUSY) { - struct tcrypt_result *tr = req->base.data; - - wait_for_completion(&tr->completion); - reinit_completion(&tr->completion); - ret = tr->err; - } + struct crypto_wait *wait = req->base.data; - return ret; + return crypto_wait_req(ret, wait); } static int test_acipher_jiffies(struct skcipher_request *req, int enc, @@ -852,7 +818,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs, unsigned int tcount, u8 *keysize, bool async) { unsigned int ret, i, j, k, iv_len; - struct tcrypt_result tresult; + struct crypto_wait wait; const char *key; char iv[128]; struct skcipher_request *req; @@ -865,7 +831,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs, else e = "decryption"; - init_completion(&tresult.completion); + crypto_init_wait(&wait); tfm = crypto_alloc_skcipher(algo, 0, async ? 0 : CRYPTO_ALG_ASYNC); @@ -886,7 +852,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs, } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - tcrypt_complete, &tresult); + crypto_req_done, &wait); i = 0; do { From patchwork Wed Oct 18 07:00:49 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: 827457 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH36W1XKTz9t2Z for ; Wed, 18 Oct 2017 18:07:47 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966828AbdJRHGE (ORCPT ); Wed, 18 Oct 2017 03:06:04 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:34114 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761369AbdJRHGB (ORCPT ); Wed, 18 Oct 2017 03:06:01 -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 B726BF; Wed, 18 Oct 2017 00:06:00 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 713593F590; Wed, 18 Oct 2017 00:05:52 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 17/20] crypto: talitos: move to generic async completion Date: Wed, 18 Oct 2017 08:00:49 +0100 Message-Id: <1508310057-25369-18-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org The talitos driver starts several async crypto ops and waits for their completions. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef Tested-by: Christophe Leroy --- drivers/crypto/talitos.c | 38 +++++--------------------------------- 1 file changed, 5 insertions(+), 33 deletions(-) diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 5bd8191..9c80e0c 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -2160,22 +2160,6 @@ static int ahash_import(struct ahash_request *areq, const void *in) return 0; } -struct keyhash_result { - struct completion completion; - int err; -}; - -static void keyhash_complete(struct crypto_async_request *req, int err) -{ - struct keyhash_result *res = req->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen, u8 *hash) { @@ -2183,10 +2167,10 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen, struct scatterlist sg[1]; struct ahash_request *req; - struct keyhash_result hresult; + struct crypto_wait wait; int ret; - init_completion(&hresult.completion); + crypto_init_wait(&wait); req = ahash_request_alloc(tfm, GFP_KERNEL); if (!req) @@ -2195,25 +2179,13 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen, /* Keep tfm keylen == 0 during hash of the long key */ ctx->keylen = 0; ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - keyhash_complete, &hresult); + crypto_req_done, &wait); sg_init_one(&sg[0], key, keylen); ahash_request_set_crypt(req, sg, hash, keylen); - ret = crypto_ahash_digest(req); - switch (ret) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - ret = wait_for_completion_interruptible( - &hresult.completion); - if (!ret) - ret = hresult.err; - break; - default: - break; - } + ret = crypto_wait_req(crypto_ahash_digest(req), &wait); + ahash_request_free(req); return ret; From patchwork Wed Oct 18 07:00:50 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: 827456 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH36L0TJWz9t2Z for ; Wed, 18 Oct 2017 18:07:38 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966853AbdJRHGS (ORCPT ); Wed, 18 Oct 2017 03:06:18 -0400 Received: from foss.arm.com ([217.140.101.70]:34168 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761395AbdJRHGQ (ORCPT ); Wed, 18 Oct 2017 03:06:16 -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 390E915BE; Wed, 18 Oct 2017 00:06:16 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D62793F590; Wed, 18 Oct 2017 00:06:07 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 18/20] crypto: qce: move to generic async completion Date: Wed, 18 Oct 2017 08:00:50 +0100 Message-Id: <1508310057-25369-19-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org The qce driver starts several async crypto ops and waits for their completions. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef --- drivers/crypto/qce/sha.c | 30 ++++-------------------------- 1 file changed, 4 insertions(+), 26 deletions(-) diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c index 47e114a..53227d7 100644 --- a/drivers/crypto/qce/sha.c +++ b/drivers/crypto/qce/sha.c @@ -349,28 +349,12 @@ static int qce_ahash_digest(struct ahash_request *req) return qce->async_req_enqueue(tmpl->qce, &req->base); } -struct qce_ahash_result { - struct completion completion; - int error; -}; - -static void qce_digest_complete(struct crypto_async_request *req, int error) -{ - struct qce_ahash_result *result = req->data; - - if (error == -EINPROGRESS) - return; - - result->error = error; - complete(&result->completion); -} - static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { unsigned int digestsize = crypto_ahash_digestsize(tfm); struct qce_sha_ctx *ctx = crypto_tfm_ctx(&tfm->base); - struct qce_ahash_result result; + struct crypto_wait wait; struct ahash_request *req; struct scatterlist sg; unsigned int blocksize; @@ -405,9 +389,9 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key, goto err_free_ahash; } - init_completion(&result.completion); + crypto_init_wait(&wait); ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - qce_digest_complete, &result); + crypto_req_done, &wait); crypto_ahash_clear_flags(ahash_tfm, ~0); buf = kzalloc(keylen + QCE_MAX_ALIGN_SIZE, GFP_KERNEL); @@ -420,13 +404,7 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key, sg_init_one(&sg, buf, keylen); ahash_request_set_crypt(req, &sg, ctx->authkey, keylen); - ret = crypto_ahash_digest(req); - if (ret == -EINPROGRESS || ret == -EBUSY) { - ret = wait_for_completion_interruptible(&result.completion); - if (!ret) - ret = result.error; - } - + ret = crypto_wait_req(crypto_ahash_digest(req), &wait); if (ret) crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); From patchwork Wed Oct 18 07:00:51 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: 827455 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH36D5671z9t2Z for ; Wed, 18 Oct 2017 18:07:32 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966877AbdJRHGe (ORCPT ); Wed, 18 Oct 2017 03:06:34 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:34232 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761436AbdJRHGb (ORCPT ); Wed, 18 Oct 2017 03:06:31 -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 12C11165D; Wed, 18 Oct 2017 00:06:31 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B2B223F590; Wed, 18 Oct 2017 00:06:22 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 19/20] crypto: mediatek: move to generic async completion Date: Wed, 18 Oct 2017 08:00:51 +0100 Message-Id: <1508310057-25369-20-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org The mediatek driver starts several async crypto ops and waits for their completions. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef Acked-by: Ryder Lee --- drivers/crypto/mediatek/mtk-aes.c | 31 +++++-------------------------- 1 file changed, 5 insertions(+), 26 deletions(-) diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c index 32aa587..c2058cf 100644 --- a/drivers/crypto/mediatek/mtk-aes.c +++ b/drivers/crypto/mediatek/mtk-aes.c @@ -138,11 +138,6 @@ struct mtk_aes_gcm_ctx { struct crypto_skcipher *ctr; }; -struct mtk_aes_gcm_setkey_result { - int err; - struct completion completion; -}; - struct mtk_aes_drv { struct list_head dev_list; /* Device list lock */ @@ -942,17 +937,6 @@ static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode) &req->base); } -static void mtk_gcm_setkey_done(struct crypto_async_request *req, int err) -{ - struct mtk_aes_gcm_setkey_result *result = req->data; - - if (err == -EINPROGRESS) - return; - - result->err = err; - complete(&result->completion); -} - /* * Because of the hardware limitation, we need to pre-calculate key(H) * for the GHASH operation. The result of the encryption operation @@ -968,7 +952,7 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key, u32 hash[4]; u8 iv[8]; - struct mtk_aes_gcm_setkey_result result; + struct crypto_wait wait; struct scatterlist sg[1]; struct skcipher_request req; @@ -1008,22 +992,17 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key, if (!data) return -ENOMEM; - init_completion(&data->result.completion); + crypto_init_wait(&data->wait); sg_init_one(data->sg, &data->hash, AES_BLOCK_SIZE); skcipher_request_set_tfm(&data->req, ctr); skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP | CRYPTO_TFM_REQ_MAY_BACKLOG, - mtk_gcm_setkey_done, &data->result); + crypto_req_done, &data->wait); skcipher_request_set_crypt(&data->req, data->sg, data->sg, AES_BLOCK_SIZE, data->iv); - err = crypto_skcipher_encrypt(&data->req); - if (err == -EINPROGRESS || err == -EBUSY) { - err = wait_for_completion_interruptible( - &data->result.completion); - if (!err) - err = data->result.err; - } + err = crypto_wait_req(crypto_skcipher_encrypt(&data->req), + &data->wait); if (err) goto out; From patchwork Wed Oct 18 07:00:52 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: 827454 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yH35n4WC0z9s03 for ; Wed, 18 Oct 2017 18:07:09 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966904AbdJRHGs (ORCPT ); Wed, 18 Oct 2017 03:06:48 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:34276 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761450AbdJRHGp (ORCPT ); Wed, 18 Oct 2017 03:06:45 -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 2EC351529; Wed, 18 Oct 2017 00:06:45 -0700 (PDT) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D7C713F590; Wed, 18 Oct 2017 00:06:36 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Steffen Klassert , Alexey Kuznetsov , Hideaki YOSHIFUJI , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, netdev@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Subject: [PATCH v10 20/20] crypto: adapt api sample to use async. op wait Date: Wed, 18 Oct 2017 08:00:52 +0100 Message-Id: <1508310057-25369-21-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1508310057-25369-1-git-send-email-gilad@benyossef.com> References: <1508310057-25369-1-git-send-email-gilad@benyossef.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org The code sample is waiting for an async. crypto op completion. Adapt sample to use the new generic infrastructure to do the same. This also fixes a possible data coruption bug created by the use of wait_for_completion_interruptible() without dealing correctly with an interrupt aborting the wait prior to the async op finishing. Signed-off-by: Gilad Ben-Yossef --- Documentation/crypto/api-samples.rst | 52 +++++++----------------------------- 1 file changed, 10 insertions(+), 42 deletions(-) diff --git a/Documentation/crypto/api-samples.rst b/Documentation/crypto/api-samples.rst index 2531948..006827e 100644 --- a/Documentation/crypto/api-samples.rst +++ b/Documentation/crypto/api-samples.rst @@ -7,59 +7,27 @@ Code Example For Symmetric Key Cipher Operation :: - struct tcrypt_result { - struct completion completion; - int err; - }; - /* tie all data structures together */ struct skcipher_def { struct scatterlist sg; struct crypto_skcipher *tfm; struct skcipher_request *req; - struct tcrypt_result result; + struct crypto_wait wait; }; - /* Callback function */ - static void test_skcipher_cb(struct crypto_async_request *req, int error) - { - struct tcrypt_result *result = req->data; - - if (error == -EINPROGRESS) - return; - result->err = error; - complete(&result->completion); - pr_info("Encryption finished successfully\n"); - } - /* Perform cipher operation */ static unsigned int test_skcipher_encdec(struct skcipher_def *sk, int enc) { - int rc = 0; + int rc; if (enc) - rc = crypto_skcipher_encrypt(sk->req); + rc = crypto_wait_req(crypto_skcipher_encrypt(sk->req), &sk->wait); else - rc = crypto_skcipher_decrypt(sk->req); - - switch (rc) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - rc = wait_for_completion_interruptible( - &sk->result.completion); - if (!rc && !sk->result.err) { - reinit_completion(&sk->result.completion); - break; - } - default: - pr_info("skcipher encrypt returned with %d result %d\n", - rc, sk->result.err); - break; - } - init_completion(&sk->result.completion); + rc = crypto_wait_req(crypto_skcipher_decrypt(sk->req), &sk->wait); + + if (rc) + pr_info("skcipher encrypt returned with result %d\n", rc); return rc; } @@ -89,8 +57,8 @@ Code Example For Symmetric Key Cipher Operation } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - test_skcipher_cb, - &sk.result); + crypto_req_done, + &sk.wait); /* AES 256 with random key */ get_random_bytes(&key, 32); @@ -122,7 +90,7 @@ Code Example For Symmetric Key Cipher Operation /* We encrypt one block */ sg_init_one(&sk.sg, scratchpad, 16); skcipher_request_set_crypt(req, &sk.sg, &sk.sg, 16, ivdata); - init_completion(&sk.result.completion); + crypto_init_wait(&sk.wait); /* encrypt data */ ret = test_skcipher_encdec(&sk, 1);