From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0D346349CDD for ; Tue, 16 Jun 2026 22:06:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781647575; cv=none; b=upODmsb7Hygh45/BBU6LItxBXcMq4U864a9F+pPPMi9W8etiO9fX5BKzzHszJlpz6wApDqCMQop6bRMZw4E+d5nGFPYLs9VSytFitSDzfsCgki0AYV8iIfo/hxxt2AETcBX2nqMqgbJEIpodWcufGLZ+b7KHXxbtafaaE4TO0vA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781647575; c=relaxed/simple; bh=SIl3T/y6XKz2CSlLjTLbn53bB4naiteyTJvlcUtHyS4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=SuDTfx9CtP/TbXkUlA136BcgnO8VeLFsezlQ1lqBvkA1PDNMcx4l3y5M+j0XpaJlB+7BFvaHxMde3cNphuFGH8VVUVfoMeI2XNI2NuND6Cba7javIdeAqNqsGuQnNG5w/H8OIxO9zazAGu/PFvysbX+W6QvCkvbdxW3kqKvF2Ws= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=qa32olrU; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="qa32olrU" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-490ae94a89eso44457465e9.1 for ; Tue, 16 Jun 2026 15:06:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1781647572; x=1782252372; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Qjc2krrqahq+APUkDAlJCVHal69icYfN/Ux7mYOZdFA=; b=qa32olrUm5hksv6d18/YPAqoaRz2NeanXAfe4AK4sVsqNv4Yni+CWBg4IgUp4kiWKe yjDmJqB2Vcy9SkbxuAqL7GVUl/weBIqIj1MQEj5G9ExJyuQwLUjTXMB4wSAnfhtT7OnH w/iDtLXPcUSZbT0vP5dARzkMDKli/UivUGfHEjKIpcM2enpyLtG8Zn/Ax1KOl1+GKtTZ x9ZBxfGWdBpjrR72oA3Ag69DSPQZuMQdRs9avNl9wbCYUT23T3uhP0U5vjGVcIVzxyjX RdwZe6zByoFLZp5KLnZDVoe25Wf1e36cWvoZM57H14xrPJ3yPWTDmWFUo+iiIlQ/Q778 OXwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781647572; x=1782252372; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Qjc2krrqahq+APUkDAlJCVHal69icYfN/Ux7mYOZdFA=; b=lq0QuAF8ul/vX2o6evLeHaSz3jKzwcXTuEqtOTcDONgDA2k5bgfT0PTolerlI2u/+M iUHy3huIijZ2VnBvPy9x/fQJMT6Ec3ZMLoT1z7WPPetxd8JOy47vFYpOFlBux8QHwnlr Lo0bzu75vfJDOnP9WmvBeDSnBwQpyF/DuQHCo6RweQq+pI5jV1UvMxXsBMMPLT9dlmyI Q6noF7pBKQgd9XrN6Q1edta9a1rIKg6wE0kr3BOFhOPlm+lg++yJZ29zadGFWlZwC0xE NWYwU3NPJ6ak5dWvoJsAhGf5Ve7aynT8shKY//Li5/V8w5ybWDIeEfI0at/oNB/g2wmK j0Zg== X-Forwarded-Encrypted: i=1; AFNElJ9pk1hAlqJ0XfRSJokbkTxGE9X9k3Dkj54C+xZx50hWBFk4h+ioF74qnW5GhZGC/N2SXdCt9gU=@vger.kernel.org X-Gm-Message-State: AOJu0YwsoTl4010qfnO53XjX668J8bAr8pMomTIt8lDdeeI7Ij8X89/Z ny1IecjLgfpbvMJPepDH0l7+h30mQud8ig149ac/HAXNs6di8e/9Ik0S X-Gm-Gg: Acq92OGU2pma3dfn/CdZ1FgTe625AsZZOaNcB7pe/TvytN+uIfpfCe6X2vZ1EFE9myB kXcr/aIyQPVxdB+aymyn1XEI5lJfn3mXaGkWXNM3HctYbX4uKzXExZuNgF/1c6o7ccIEohpsv8f G/LKrjc9wRDgjk3uOYDERHSbAxV4eJ0McpGR5D387Z14pkTA1rpiD8P69I3qzw7D2ahGugD7v9c IU7ebw8yHzMBsdA/IWZP+tALqnMSjHAjTXsJo/nSbf9Y03zR1HPhOmF6c3AmhX7pB4mTZJOyRRv /QLRX0TgfNMS2Ethc5EDfmvXI/CAHyuTBim+3/41Z9GY+pljyNv5qsLKmeMQSeTBfimEC2XSyKs QANUYceZtTxCDBkRbollMHMA4Wz2dTHq3NXqf8Iap/nqBTEaNa2tLxetsnapXiJVm5tiK3AOxMe +4EKlOeubwdo2snj1hAIj8Fm7sajfHE9PjcqnWFsltycPaYjwWoBn1yd7j+5hOPaExY6cxAXBp1 7mORnvwwmpTg3Le6DTwtwPVbw5inyvIM05OYgwyQn81nnrT9xI79kZp89ls63AOb4rHmR0Kh2kY A6LtCNb7R2zIvhmnbvyjh5ELOT5htVjyh3tpjKX0+88= X-Received: by 2002:a05:600c:e557:20b0:490:e5c1:b8bf with SMTP id 5b1f17b1804b1-492333bfa01mr15869775e9.13.1781647572241; Tue, 16 Jun 2026 15:06:12 -0700 (PDT) Received: from mail.gmail.com (2a01cb0889497e004325bddd753d2e35.ipv6.abo.wanadoo.fr. [2a01:cb08:8949:7e00:4325:bddd:753d:2e35]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49233be5901sm10431785e9.1.2026.06.16.15.06.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Jun 2026 15:06:11 -0700 (PDT) Date: Wed, 17 Jun 2026 00:06:09 +0200 From: Paul Chaignon To: Jordan Rife Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Stanislav Fomichev Subject: Re: [PATCH v1 bpf-next 0/2] bpf: bpf_redirect_peer egress redirection Message-ID: References: <20260613183424.1198073-1-jordan@jrife.io> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Jun 16, 2026 at 01:49:26PM -0700, Jordan Rife wrote: > > IMO, calling it BPF_F_EGRESS would be less confusing. It's a shame we > > can't have the same flag API between bpf_redirect() and > > bpf_redirect_peer(), but this is creating inconsistent semantics for > > the terms egress/ingress across the two helpers. > > Yeah, one annoying thing about BPF_F_EGRESS is that it would only > apply to bpf_redirect_peer, so you still have inconsistencies across Yes, that's what I meant by "we can't have the same flag API" :) Alternatively, we could define BPF_F_EGRESS as 1ULL << 1, for both helpers, but I'm not sure it's worth it. Maybe Daniel will have another idea? > helpers. Perhaps this is less weird than having BPF_F_INGRESS perform > an egress redirection though. > > Jordan