From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fhigh-a8-smtp.messagingengine.com (fhigh-a8-smtp.messagingengine.com [103.168.172.159]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 564C0423F7A; Wed, 1 Jul 2026 19:42:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=103.168.172.159 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782934940; cv=none; b=fmMWkMPKwpvt8Y+gfcesAM1pgqwuWX5FxY6W4jrE8zanRI91l+1YWp9MZD8YURTDugKSbZwO1ECwnJoHMJSuoYrGKNd0HrqyX92CM/1MAX1+lAVuSP78lTufxTbUHTiviqQs/iYM3C3fUCgiecuYhhjzYubIBipMU43dH9onaPY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782934940; c=relaxed/simple; bh=duvUiJra6H1sq6gOYlnLjNAg1Sfl3oKcL1JFeqAltT0=; h=MIME-Version:Date:From:To:Cc:Message-Id:In-Reply-To:References: Subject:Content-Type; b=TSP6yF5sUQSAJWJZ9jrdvpXHP0drTWYvEz2sFny1QPwoWW3nemdx3zSshLAy6bQnN4s1b5JZie3hdj9netfWhekiU4XtXwq7I5PMcqGpIWFIKioGfhCDhvZoDeuEOOqr9tAHpJNEQEIKj5bV+GBOMV2DZC9onWSg4Ad3fHuGarc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=johnericson.me; spf=pass smtp.mailfrom=johnericson.me; dkim=pass (2048-bit key) header.d=johnericson.me header.i=@johnericson.me header.b=aOOuf8X4; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b=FSfv9d0v; arc=none smtp.client-ip=103.168.172.159 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=johnericson.me Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=johnericson.me Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=johnericson.me header.i=@johnericson.me header.b="aOOuf8X4"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="FSfv9d0v" Received: from phl-compute-05.internal (phl-compute-05.internal [10.202.2.45]) by mailfhigh.phl.internal (Postfix) with ESMTP id 1BE201400181; Wed, 1 Jul 2026 15:42:18 -0400 (EDT) Received: from phl-imap-16 ([10.202.2.88]) by phl-compute-05.internal (MEProxy); Wed, 01 Jul 2026 15:42:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=johnericson.me; h=cc:cc:content-transfer-encoding:content-type:content-type :date:date:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:subject:subject:to:to; s=fm3; t=1782934938; x=1783021338; bh=duvUiJra6H1sq6gOYlnLjNAg1Sfl3oKc L1JFeqAltT0=; b=aOOuf8X4xJIDQD4w2sETh9g2ftGWMPoPk+yb+53cAdN7DZUm i/i3gV1UyttJG81U54VrtBFEXCeP/HabgzI4PRGzq6Jqfx9cKHlennpw2uTdT4IT OGPSlSqOodbQKEaFmRz2CSebrpuBTkmKzOwi+UsRPPpCXVVYKR3IK2AsyAjnqCLC jOpscOcoDZwx3xmNWjHrnmSS+Ye/DjKTl/prKCXF1kOx3z172SwWQJmixkFhmx0g oFceT1Q/a5oEDISnKImKZUmukVzHAr33YIL9sFFfzCKut9YaML4CAtrfmR/C7XjK 3hVXuUS+586bpAXjTZIhNuzv7NBnqsmYgw0+Jw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=1782934938; x= 1783021338; bh=duvUiJra6H1sq6gOYlnLjNAg1Sfl3oKcL1JFeqAltT0=; b=F Sfv9d0vof2r896tQSZsEnEAwKnFRINQoAfDHoDdS1oqzHcs21XMAmRSBPcODqt79 UAQsdEEIlt65SQmzWubBKh3eXiX11VcI8331T01qmRPDEv0M9VIZd9C9JdDjphhl vVAcDQBP3Ho5tAmXtQTOt5jBTmWilfQIe2jpjAiB3XdNInu9DkiS9kXd96n2D7Av 0HasrbO668ETHIXBG/dD+SNajH5y0fCsc9B/z8aDosn0v6YekKZGZp6/eqSK9Ezp VIHDorO55fd5PQcKT4WIYi2HC8RinjRCaWOrOstkwc6pT+tDwbktSpp7CPB04WCc Q1GE+jUcrRg5k9fORQ5UA== X-ME-Sender: X-ME-Proxy-Cause: dmFkZTEcQge4w4sBHRY0uHSPe4IFqDnYUN2Tns4osA1e7ov62RU/KtjrvaM/pG/pfRNw5U 9WgqleVx9+5kW2MWfNtTOhIY6ozhR/yri1GZMGHT9RAZG0Dp7IxrZjPZrLmo9skv+k1ZU/ bZHEXxMZh3llrfZFP29O3onIDj8fE9HtzeAVz2DOMzQZJkkZ9JbZSs+bL86ngQH7LM56e2 WLm5uo7kJxlc8BffnXb6JvjrPRq/tNV0ttrLL9f9lgJVlKx54JitZLT45Xprpx4Mfdq2Ua f8vAKz8PK0Alh4g0KP3E1+tGGU4qp243bGcy5AkqIg+vA/afTVEqR93dy04qfcB1ZEPGjr nVGrEnCRBQQblRSci2vjCaIYk9M2C52Gz+6/tcPZqTPxeHs8ib/PFj8qw+ilatRn7fQwd7 jOqzaU+XhldTw8Ov3t2I0c10gVefLzDJVCHnJ34gZWuXvn54EbfyggUJ8bx5ouzGtAYHS/ 6BaClM9QNcvEIyGVs2YvXWOZM0tIxK7t6bBCVgrB2gD91mOjDIZJa5Fj5QtCn+C35S/n5D a5NpXv2KFEgyP6qxnOoZz9RagJmCPaeW5d+je+gHj8iFFSKCZAjBeoccbjmLLwnCJBNHmG jf0uJKOKRDALpZZivamcTUYC/6+4LCfkYKIlAB0HHHIT4LvMC2fsuHlFI4GQ X-ME-Proxy: Feedback-ID: ieb4144f1:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id 9C4512CC0083; Wed, 1 Jul 2026 15:42:17 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ThreadId: Aqzxz9K-cSE- Date: Wed, 01 Jul 2026 15:41:39 -0400 From: "John Ericson" To: "Cong Wang" Cc: "Li Chen" , "Andy Lutomirski" , "Christian Brauner" , "Jens Axboe" , "network dev" , linux-fsdevel Message-Id: In-Reply-To: References: <455281ec-3ee1-4f27-989b-c239f0690d8b@app.fastmail.com> <66eb8227-85b6-4684-a4fa-e3e17ac2fa45@app.fastmail.com> Subject: Re: [RFC] connectat()/bindat() or an alternative design Content-Type: text/plain Content-Transfer-Encoding: 7bit Two small addendums to my previous email: First, I linked these two unresponded-to emails for prior art in the opening email of the thread: > https://lore.kernel.org/netdev/4FCF171B.8000207@parallels.com/ > https://lore.kernel.org/all/CAEnbY+co6YLXANfeMnfBOBs8Ba_Sbdqz0Ahm8RzAhRF7MrxL4Q@mail.gmail.com/ Since then, I found one more: https://lore.kernel.org/all/20120815161141.7598.16682.stgit@localhost.localdomain/#t which is an actual patch by the same person that wrote the first linked email, with replies. Hopefully that is useful. Second, it occurred to me that regarding > (Maybe `bind_unix_anon` should furthermore `listen` right away on > `lfd` too?) a useful thing to first decide is whether `bind_unix_anon` is helpful and/or should be allowed for `SOCK_DGRAM`. John