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[176.103.220.4]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4792b1776besm9549155e9.7.2025.12.02.22.34.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Dec 2025 22:34:07 -0800 (PST) Date: Wed, 3 Dec 2025 07:34:05 +0100 From: Stefano Brivio To: David Gibson Subject: Re: [PATCH v5 00/15] Reduce differences between inbound and outbound socket binding Message-ID: <20251203073405.76127409@elisabeth> In-Reply-To: <20251202040215.2351792-1-david@gibson.dropbear.id.au> References: <20251202040215.2351792-1-david@gibson.dropbear.id.au> Organization: Red Hat X-Mailer: Claws Mail 4.2.0 (GTK 3.24.49; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: V81VxaF0hjEKdddGRHpHgzAe2ZwAbNa8SQ4Q_nfjEBE_1764743650 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Message-ID-Hash: TPRKADWQMLCZGYSDYC4RZROFPW2E36GK X-Message-ID-Hash: TPRKADWQMLCZGYSDYC4RZROFPW2E36GK X-MailFrom: sbrivio@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: passt-dev@passt.top X-Mailman-Version: 3.3.8 Precedence: list List-Id: Development discussion and patches for passt Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Tue, 2 Dec 2025 15:02:00 +1100 David Gibson wrote: > This series is based on my series fixing bug 176 (regression in auto > forwarding). > > The fact that outbound forwarding sockets are bound to the loopback > address, whereas inbound forwarding sockets are (by default) bound to > the unspecified address leads to some unexpected differences between > the paths setting up each of them. > > An idea for tackling bug 100 suggested a different approach which will > also reduce some of those differences and allow more code to be shared > between the two paths. I've since discovered that this approach > doesn't help for bug 100, but I think it's still worthwhile for other reasons. > > v5: > - Combine with SO_BINDTODEVICE and bug 113 patch series > - Add fallback handling for kernels without SO_BINDTODEVICE > - Add missing struct field documentation for no_bindtodevice Applied (with nit from 2/15 fixed). -- Stefano