From nobody Tue Jul 7 21:19:52 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4gvvJ84Z9pz6kVWY for ; Tue, 07 Jul 2026 21:19:52 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gvvJ842rcz3rlD for ; Tue, 07 Jul 2026 21:19:52 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783459192; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=pg2uH0WSHWHQDdTzOhjzIDI21PgR0ZY2LpSWHmx4Y8w=; b=tuD698EPQY95+F4nIe4GgEDQ7Iu2Tf1iRC+AltUH6TAd9jDxuixvwEWz7udC0yPod2asuS +ref0y5ZiApi64djE4vxZttc/fXa0nv1tgA3L0DvTxHmNMf0fra56QMzJccmUzNsFgrvZ3 4JhUYzYPRqcSAGK0uvj8JcSr4XNVcobO4/EhqhWpihY3ot3bJ17V/TfNVMSqfjGr8umddw l0mVjYZslo5dO+Tw9u1jax5N+6hHQ9mWzHpl39cBSrA1rr70o7/fGGWX+GAg8nTHXBrERR AYPDHejoBtPc+/IwEs6JuhFcWd9eeMrJZlTayfU63dFxLtjwdFeyWhp5bvwhgg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783459192; a=rsa-sha256; cv=none; b=gcDyNSxZy8SZb0oaiDIVu32OHyhWiszuiiw+Tf+N0xwXoRIs9Jn7qJbBClRTjAwXvbFuKh 0lvMwFNsZ7C+BKz7ans57BKv3itkOeydtwvnjUjBLiq1rj1Mp3rIyeKuo0MU4K0GV3FiIu 2tLstMqDRWlviXDRXQyEUVAv6KS7oiaE3SZxMUAmrUpVsCUepPnLnHy+SzPgjKPgk4mXUs LvvDwnoSqzw6O8UjAr6WNjW/CENBypOdQeH5Hrox6TNbHod/CPu/xqsj0z7Q+PnPeJ98Xw m1TZbZWNSPcCxv0yBRDlv/9RcRqFupcnVSb1EWpp0BH4Ip+N+5mwX4wKxqbGkA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783459192; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=pg2uH0WSHWHQDdTzOhjzIDI21PgR0ZY2LpSWHmx4Y8w=; b=SZ/T/U1LQx6V06yyxs3LBFRPlKuH27znTUFHRP+ROX0yEYSQS1zPXY4DVZ8GuRRdSJ771A J/45MagyReOiXO4UIyghkCA6rBZbMy23nMFFqBgDhG2QnH0rrItIN8wMv49/Wp02n/msMI o+J3F/YDwp2OEWFlQ9t7dMB4qFUtLx3PjUR/t545It+YrYo6J4ONtHW3NLGTedG+52wkj2 x0ZHeqOTwtQQFfw+ZUL4eD9ZwlTvAIgf5O5InG0Z/fEe3Hw6lvGCAWjkFP3ZGdgOV0FqWf FAk6Eb69dgkUZvLDc4Xi9Bvdy4nnjd5H61lpP1nxqrELlr6UM420uuJNnVwarA== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4gvvJ837TdzrwJ for ; Tue, 07 Jul 2026 21:19:52 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 19a4f by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 07 Jul 2026 21:19:52 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Gleb Smirnoff Subject: git: 11bd6ade5dfd - main - linux: switch off interface name translation and schedule its removal List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: glebius X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 11bd6ade5dfdfb5160dd001542c4cfd44aed98bc Auto-Submitted: auto-generated Date: Tue, 07 Jul 2026 21:19:52 +0000 Message-Id: <6a4d6d78.19a4f.2a815a0f@gitrepo.freebsd.org> The branch main has been updated by glebius: URL: https://cgit.FreeBSD.org/src/commit/?id=11bd6ade5dfdfb5160dd001542c4cfd44aed98bc commit 11bd6ade5dfdfb5160dd001542c4cfd44aed98bc Author: Gleb Smirnoff AuthorDate: 2026-07-07 21:19:17 +0000 Commit: Gleb Smirnoff CommitDate: 2026-07-07 21:19:17 +0000 linux: switch off interface name translation and schedule its removal Modern Linuxes don't use ethX for almost 15 years already, see [1] and [2]. The translation logic has always been a source of bugs and PITA. Switch default to not translate (long due!) and schedule removal of the code for FreeBSD 17. [1] https://systemd.io/PREDICTABLE_INTERFACE_NAMES/ [2] https://www.freedesktop.org/software/systemd/man/latest/systemd.net-naming-scheme.html Reviewed by: iwtcex_gmail.com, vvd, melifaro, dchagin Differential Revision: https://reviews.freebsd.org/D57852 --- sys/compat/linux/linux_if.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/sys/compat/linux/linux_if.c b/sys/compat/linux/linux_if.c index ca4e3a4079ed..51a76aa13be3 100644 --- a/sys/compat/linux/linux_if.c +++ b/sys/compat/linux/linux_if.c @@ -44,9 +44,24 @@ _Static_assert(LINUX_IFNAMSIZ == IFNAMSIZ, "Linux IFNAMSIZ"); -static bool use_real_ifnames = false; -SYSCTL_BOOL(_compat_linux, OID_AUTO, use_real_ifnames, CTLFLAG_RWTUN, - &use_real_ifnames, 0, +static bool use_real_ifnames = true; +static int +sysctl_linux_use_real_ifnames(SYSCTL_HANDLER_ARGS) +{ + int error; + + error = sysctl_handle_bool(oidp, &use_real_ifnames, arg2, req); + if (error != 0 || req->newptr == NULL) + return (error); + if (!use_real_ifnames) + gone_in(17, "linux(4): %s: conversion of native interface " + "names to ethN is not needed to emulate modern Linux. " + "See https://systemd.io/PREDICTABLE_INTERFACE_NAMES. ", + oidp->oid_name); + return (0); +} +SYSCTL_PROC(_compat_linux, OID_AUTO, use_real_ifnames, + CTLTYPE_U8 | CTLFLAG_RWTUN, 0, 0, sysctl_linux_use_real_ifnames, "CU", "Use FreeBSD interface names instead of generating ethN aliases"); VNET_DEFINE_STATIC(struct unrhdr *, linux_eth_unr);