From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-178.mta1.migadu.com (out-178.mta1.migadu.com [95.215.58.178]) (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 B59FB270EC9 for ; Fri, 28 Feb 2025 20:08:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740773319; cv=none; b=jhoy5gLSGXmveAACutI12jirYhTDrxSaaNApBhTRiWe8wiGNGfzDo1rJix0kGF4eQjRD8KX8WG+MzIWTIRCa9jn2nnaZ8FRFWfODBMLQcePabOqyZg2/sKdH03Vb3XjDbqJDdE1i3cJ4p6tuKBRVELgoUE0OsTDEZJQxncNG0ak= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740773319; c=relaxed/simple; bh=dN5erVEOdVNv3oiWJXPSnonCC/q7xzUNqwNCyBAEI3A=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WA5PZu3LSv/YvWqlSkUhmQhRUWfYAH89DDYDRNMheuyUjQaf/Nk9pah9V7p1QR29uLDqiWdQeaAnGr2hpXEmAZ3vyqi9XMLnYLsUI48Imy54K0csYLPlOyRP21JFKHquto6v5Y16hwHg4uFnyLN6o7nJCqozYJE9MaGj1C5w+TM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Iee3yVRM; arc=none smtp.client-ip=95.215.58.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Iee3yVRM" Message-ID: <5ef054b4-3340-4b0e-9ba6-7b7409f9eb71@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1740773305; 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=AUG1i0ZL+wix5b2+TFEt5FV9JDKNxVcCuHH6kCyEvFM=; b=Iee3yVRM9G4Kqlw+8+wbdMX2GaTOnlnea8Slk0svUu1qmw1YouBr6SZsANz4314sMTIoTp 9dEbz6DBjunvK69It02uhBvXu3ni7oBeseTGcz6qj6mZTYEAuUTXeSEPQZuFI0ypRhHFC6 ksjX9h/XWWy6RwsiOVhMoZ10MPzgJYQ= Date: Fri, 28 Feb 2025 12:08:18 -0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH bpf-next v4 0/2] Introduced to support the ULP to get or set sockets To: zhangmingyi Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, song@kernel.org, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, yanan@huawei.com, wuchangye@huawei.com, xiesongyang@huawei.com, liuxin350@huawei.com, liwei883@huawei.com, tianmuyang@huawei.com, Network Development References: <20250228085340.3219391-1-zhangmingyi5@huawei.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Martin KaFai Lau In-Reply-To: <20250228085340.3219391-1-zhangmingyi5@huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 2/28/25 12:53 AM, zhangmingyi wrote: > From: Mingyi Zhang > > We want call bpf_setsockopt to replace the kernel module in the TCP_ULP > case. The purpose is to customize the behavior in connect and sendmsg > after the user-defined ko file is loaded. We have an open source > community project kmesh (kmesh.net). Based on this, we refer to some > processes of tcp fastopen to implement delayed connet and perform HTTP > DNAT when sendmsg.In this case, we need to parse HTTP packets in the > bpf program and set TCP_ULP for the specified socket. > > Note that tcp_getsockopt and tcp_setsockopt support TCP_ULP, while > bpf_getsockopt and bpf_setsockopt do not support TCP_ULP. > I'm not sure why there is such a difference, but I noticed that > tcp_setsockopt is called in bpf_setsockopt.I think we can add the > handling of this case. Please stop sending multiple new versions while the earlier raised questions still have not been replied [1]. Also, netdev is still not cc-ed. [1]: https://lore.kernel.org/all/44668201-cf8b-49c1-9dd0-90e0e5a95457@linux.dev/ pw-bot: cr