From nobody Fri Jul 4 13:28:44 2025 X-Original-To: dev-commits-src-branches@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 4bYZGP3F7sz6156j; Fri, 04 Jul 2025 13:28:45 +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 "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4bYZGP0Nltz3Lxv; Fri, 04 Jul 2025 13:28:45 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1751635725; 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=B7+EixfyEcDYxdhLAR+qMBh7B9gXpg4ZHfg9Wqq8MB0=; b=fRpI63WnNPh3zt7pGR2cpLc5WwB09srTsyB5L1+BWk5313UKQ5V3E4dLAs8wwOkHgPOM/F YU9RW//N7uFR4Y6fMvUtxGp9fjktA1xQRtatpz1GOcjChjYFj8ad+2WNWsvTotUJtoK82q lT/PzcewzCzBigPzMSGeEcwC1bQV5JUS+rmUhChiTfYiWAe3pSJYCsiuYBMc8oCohdmpKC gpcJqMAn6ETZAmXzV8oWWtCfkd85FUbvIicFo3ZrLW6CjQsX4BuMOZeoziGGESXZT7UBri 9wlaPeGg7EJc/X+BTIMoAfOFHS2caqWaQrQKYB1+5GJUe/AF3sjMnKIYbxsWPg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1751635725; 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=B7+EixfyEcDYxdhLAR+qMBh7B9gXpg4ZHfg9Wqq8MB0=; b=dOpjpf6Mej978iuw5yce8Z8tCg4bkjHtcRkMs4TTcFwuH7g08TgW5t377NMx42dxItGR99 y4ezYNstavdFOpC/ckkVGdvzuPqfOiQ1KpIkyY/HCgdouIxunAQu8bBI9GEcC9vnR5toit zShV4aLMcFRSlSZuFiZ6DeEyI0ui8Qyx8sO+yhWe43QSkw97cYFx7HnjZL0TG33qHqi+g6 +nnN7kXrUurzRPKT7yflhu+vL3FbXkT67u6sgxEbPjAH7EifuRfK5Kp3I/IMmJr9kCoqkX K0BlSaFv2j6AefdyDqIW81eWKAmCnIUk57ti7WaMkDcp4aSPfqAcoGSJ5j/zPw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1751635725; a=rsa-sha256; cv=none; b=S8VrstzU2jBW7DjIxXEzUOdFeyC6WmqIOhvqdpfZKtnWtYY40XnOq/6a/Y5KXU9LR57JM+ F6USv72wAqCbrCzjrYUv3KWGcz0o8vJzBkjChWn4Zxtemi2IQyuraD8ITHWStUutPDzsUI aug1vr7sDA82tOUyQN5ND7l1CzOd1lqD3EFxPfp2aNj8G1tUnXMIwyPYVuBsMzO5n66fms u0wcb+bL6xKdthR7dVvb6DhOX/7+Ti0+Vz9rD/x3xLXnve+W1MdNakYqSR7z6P+VGWFr2r cXDOeZYueg1aslWE3Ahtb2IotdpttJp8b0M/5AmCrfLtBwZk6paRv3ryqK632A== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4bYZGN75brzs0y; Fri, 04 Jul 2025 13:28:44 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 564DSi71005818; Fri, 4 Jul 2025 13:28:44 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 564DSiwm005815; Fri, 4 Jul 2025 13:28:44 GMT (envelope-from git) Date: Fri, 4 Jul 2025 13:28:44 GMT Message-Id: <202507041328.564DSiwm005815@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Gleb Popov Subject: git: 03f840f9cc8b - stable/14 - p9fs: fix lookup of "." for lib9p-based 9P servers List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: arrowd X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: 03f840f9cc8b5d02e776f59b033fe6165fc2cf4a Auto-Submitted: auto-generated The branch stable/14 has been updated by arrowd: URL: https://cgit.FreeBSD.org/src/commit/?id=03f840f9cc8b5d02e776f59b033fe6165fc2cf4a commit 03f840f9cc8b5d02e776f59b033fe6165fc2cf4a Author: Doug Rabson AuthorDate: 2024-06-24 11:22:57 +0000 Commit: Gleb Popov CommitDate: 2025-07-04 13:28:05 +0000 p9fs: fix lookup of "." for lib9p-based 9P servers The lib9p implementation takes a strict interpretation of the Twalk RPC call and returns an error for attempts to lookup ".". The workaround is to fake the lookup locally. Reviewed by: Val Packett MFC after: 3 months (cherry picked from commit 56e4622588ed2eec0197ac47c3059d3db439f5c0) --- sys/fs/p9fs/p9fs_vnops.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sys/fs/p9fs/p9fs_vnops.c b/sys/fs/p9fs/p9fs_vnops.c index d17d7624aef1..77162c0a4aff 100644 --- a/sys/fs/p9fs/p9fs_vnops.c +++ b/sys/fs/p9fs/p9fs_vnops.c @@ -243,6 +243,12 @@ p9fs_lookup(struct vop_lookup_args *ap) if (dnp == NULL) return (ENOENT); + if (cnp->cn_nameptr[0] == '.' && strlen(cnp->cn_nameptr) == 1) { + vref(dvp); + *vpp = dvp; + return (0); + } + vses = dnp->p9fs_ses; mp = vses->p9fs_mount;