From patchwork Thu Oct 27 17:30:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= X-Patchwork-Id: 13022434 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4C044FA3740 for ; Thu, 27 Oct 2022 17:36:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oo6jC-0004Gr-IS; Thu, 27 Oct 2022 13:31:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oo6jB-0004EA-9T for qemu-devel@nongnu.org; Thu, 27 Oct 2022 13:31:37 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oo6j9-0000u7-Q9 for qemu-devel@nongnu.org; Thu, 27 Oct 2022 13:31:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666891895; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=w7opvEzUdWFTV1YT3oA2R3pghRSdUwEeQHmGfOczt3g=; b=ZJLTdcOtZVxPg32i6K0zuobndlU+oNS1S7gIv9++85bUGakOUs9Liqjx33bqBOYMBkqs3c PeI7HZ+5PS7k7vzKglx57o55tAoyoyJDYkAS916HPgVHagxKT0uvZoZqH8FTq0cdkDfggE kU+m3hf2pLyOQAynXGy+/9ZyuDfoKNc= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-266-d5tzWtc5Pxyp7OSP5cBn1Q-1; Thu, 27 Oct 2022 13:31:20 -0400 X-MC-Unique: d5tzWtc5Pxyp7OSP5cBn1Q-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7E9B73C16E86; Thu, 27 Oct 2022 17:31:06 +0000 (UTC) Received: from localhost.localdomain.com (unknown [10.33.36.37]) by smtp.corp.redhat.com (Postfix) with ESMTP id A6FA540C6EC3; Thu, 27 Oct 2022 17:31:05 +0000 (UTC) From: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Jungmin Park Subject: [PULL 01/20] crypto/luks: Support creating LUKS image on Darwin Date: Thu, 27 Oct 2022 18:30:44 +0100 Message-Id: <20221027173103.299479-2-berrange@redhat.com> In-Reply-To: <20221027173103.299479-1-berrange@redhat.com> References: <20221027173103.299479-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.515, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Jungmin Park When the user creates a LUKS-encrypted qcow2 image using the qemu-img program, the passphrase is hashed using PBKDF2 with a dynamic number of iterations. The number of iterations is determined by measuring thread cpu time usage, such that it takes approximately 2 seconds to compute the hash. Because Darwin doesn't implement getrusage(RUSAGE_THREAD), we get an error message: > qemu-img: test.qcow2: Unable to calculate thread CPU usage on this platform for this command: > qemu-img create --object secret,id=key,data=1234 -f qcow2 -o 'encrypt.format=luks,encrypt.key-secret=key' test.qcow2 100M This patch implements qcrypto_pbkdf2_get_thread_cpu() for Darwin so that the above command works. Signed-off-by: Jungmin Park Signed-off-by: Daniel P. Berrangé --- crypto/pbkdf.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/crypto/pbkdf.c b/crypto/pbkdf.c index 3775ddc6c5..8d198c152c 100644 --- a/crypto/pbkdf.c +++ b/crypto/pbkdf.c @@ -24,6 +24,11 @@ #ifndef _WIN32 #include #endif +#ifdef CONFIG_DARWIN +#include +#include +#include +#endif static int qcrypto_pbkdf2_get_thread_cpu(unsigned long long *val_ms, @@ -45,6 +50,24 @@ static int qcrypto_pbkdf2_get_thread_cpu(unsigned long long *val_ms, /* QuadPart is units of 100ns and we want ms as unit */ *val_ms = thread_time.QuadPart / 10000ll; return 0; +#elif defined(CONFIG_DARWIN) + mach_port_t thread; + kern_return_t kr; + mach_msg_type_number_t count; + thread_basic_info_data_t info; + + thread = mach_thread_self(); + count = THREAD_BASIC_INFO_COUNT; + kr = thread_info(thread, THREAD_BASIC_INFO, (thread_info_t)&info, &count); + mach_port_deallocate(mach_task_self(), thread); + if (kr != KERN_SUCCESS || (info.flags & TH_FLAGS_IDLE) != 0) { + error_setg_errno(errp, errno, "Unable to get thread CPU usage"); + return -1; + } + + *val_ms = ((info.user_time.seconds * 1000ll) + + (info.user_time.microseconds / 1000)); + return 0; #elif defined(RUSAGE_THREAD) struct rusage ru; if (getrusage(RUSAGE_THREAD, &ru) < 0) {