From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_PASS,SPF_SOFTFAIL autolearn=ham autolearn_force=no version=3.4.6 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AE8CC433EF for ; Fri, 27 May 2022 14:47:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233342AbiE0Or5 (ORCPT ); Fri, 27 May 2022 10:47:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49626 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239311AbiE0Orz (ORCPT ); Fri, 27 May 2022 10:47:55 -0400 Received: from mail-io1-xd32.google.com (mail-io1-xd32.google.com [IPv6:2607:f8b0:4864:20::d32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2ADF13C4DF for ; Fri, 27 May 2022 07:47:53 -0700 (PDT) Received: by mail-io1-xd32.google.com with SMTP id y12so4852701ior.7 for ; Fri, 27 May 2022 07:47:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:from:in-reply-to:content-transfer-encoding; bh=RHpa9xrqExhgJcL2c4UAxvIyhlzi2HKiDzAjUo/YTM4=; b=djhEeCRiT6kKSPmrRPz77Y0RNu/qryPtpQwpb86fazrGO2URzJTBZqXBwALLSBEbft N2tHcGOcVmemuLyMafYlyQOagUWb8dMuWAX99LShnccmjWXI55GIuQAvEZYC2QxaEH7U dNunWvibn3qfIb/qt0yYGSQaXUUe61Z6bPDSZ725hxKVyuU3TqSrQ43kjK0FXVBRwDmh IAeVgAkzi+5cTtlEQQtCLnwMXmTnInGp9Fo2ys3RQ0v9XyP83B2si1calw8dwRA8WKnW CnRpoAex71gTgHHY8SKyDHux5h/SrLeZm6kovYVP2GT8rjFOau5K/cZPrIlwjWWjrbZZ pYqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=RHpa9xrqExhgJcL2c4UAxvIyhlzi2HKiDzAjUo/YTM4=; b=ujBLMYxE1XuA4/ifWa3lPAVcCn36j5W+EE2+lsNeUZKc/GHVnQ26BDGxefD2DpjE9r h/q18ImTiFspWg34bGJxymyMtbgvOWy3WTULP4zS3tiwcmglXbVDX/EoYCVWQSs9zeYT hzqI5B0IHgofkGVfZT4AEcYGVxj6VXg2Wt9HUWHxDojuzI42RO50d7mX7TlCC08MunX3 5G22l4yl7Ye6FgZS+MWSBr32ahk4wVFN7gTVGd+8U9SyLpeYfBNrlb3jMTiIz7bYAVyp 8gRsM49pLPOXAGjTr3L9l86JmnB1ic9KUWVIn4HyCBXeuZY1kgoD/mA0/tKNPwL927Bo 7KhA== X-Gm-Message-State: AOAM531Uz/HijNSWpiqUQLZbRSADtQ5tdU02/jU7qP0lGxQkyn07b0de 3GhAGoJhaJjG3b0uZxFitIWdRQ== X-Google-Smtp-Source: ABdhPJyk5pEsRbg1toMZoW8GdOh7Nh9pqdLEAITfzzzRLzubqIdOvA2lsU2bBb/+BxxF8bLlR2k8ag== X-Received: by 2002:a6b:3b52:0:b0:65e:4af7:3d8e with SMTP id i79-20020a6b3b52000000b0065e4af73d8emr18717305ioa.162.1653662873198; Fri, 27 May 2022 07:47:53 -0700 (PDT) Received: from [192.168.1.172] ([207.135.234.126]) by smtp.gmail.com with ESMTPSA id w10-20020a056638378a00b0032e583132e4sm601842jal.123.2022.05.27.07.47.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 27 May 2022 07:47:52 -0700 (PDT) Message-ID: <9052c627-0134-54a4-ca0b-1eb808e6bb82@kernel.dk> Date: Fri, 27 May 2022 08:47:51 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:91.0) Gecko/20100101 Thunderbird/91.9.0 Subject: Re: Erroneous socket connect pass? Content-Language: en-US To: "Weber, Eugene F Jr CIV (USA)" , "io-uring@vger.kernel.org" References: <60DCCBD6DDA29F4A9EFF6DB52DEE2AB1D866F5D3@UMECHPA66.easf.csd.disa.mil> From: Jens Axboe In-Reply-To: <60DCCBD6DDA29F4A9EFF6DB52DEE2AB1D866F5D3@UMECHPA66.easf.csd.disa.mil> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 5/27/22 8:29 AM, Weber, Eugene F Jr CIV (USA) wrote: > > Hi, > > Thanks for creating liburing. Great stuff. > > I **may** have found a bug. I would expect a socket connect using > io_uring to fail as it does using connect() if the port is not setup > to listen. In the simple test case attached it does not. If this is > pilot error, please let me know what I'm doing wrong, or why my > expectation is incorrect. Version information is in the code header. > Please let me know if any additional information is needed. The return value of io_uring_wait_cqe and related functions isn't the completion result. It's simply if we succeeded in waiting for one or more events. It could never be the completion result, because consider what happens if you have multiple requests in flight. You need to look at cqe->res for the completion result of the request. -- Jens Axboe