From owner-freebsd-bugs@freebsd.org Wed Feb 10 14:05:31 2021 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 0DC2A548145 for ; Wed, 10 Feb 2021 14:05:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4DbM3Z6pdmz4WK8 for ; Wed, 10 Feb 2021 14:05:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id E9AFB548144; Wed, 10 Feb 2021 14:05:30 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id E97A3548143 for ; Wed, 10 Feb 2021 14:05:30 +0000 (UTC) (envelope-from bugzilla-noreply@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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DbM3Z5y9Qz4WXL for ; Wed, 10 Feb 2021 14:05:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 BF7361F30D for ; Wed, 10 Feb 2021 14:05:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 11AE5U82007386 for ; Wed, 10 Feb 2021 14:05:30 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 11AE5UPt007385 for bugs@FreeBSD.org; Wed, 10 Feb 2021 14:05:30 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 253411] FUSE driver doesn't populate dirent->d_off Date: Wed, 10 Feb 2021 14:05:31 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jmillikin@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Feb 2021 14:05:31 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253411 Bug ID: 253411 Summary: FUSE driver doesn't populate dirent->d_off Product: Base System Version: 12.2-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: jmillikin@gmail.com Documentation for functions such as getdirentries(2) or getdents(2) describ= e a `d_off' field of `struct dirent' as a cookie that can be passed to lseek(2)= to resume a directory seek at a given position. This field is not set for dire= nts read from a FUSE filesystem. I believe this may be caused by a missing field assignment in `fuse_internal_readdir_processdata()'. Below is a simple test driver that will print out dirent fields for a provi= ded directory. Run it on a UFS volume and a fusefs volume to see different `d_o= ff' behavior. ------------ #include #include #include int main(int argc, char **argv) { if (argc !=3D 2) { fprintf(stderr, "usage: %s DIRPATH\n", argv[0]); return 1; } DIR *dir_p =3D opendir(argv[1]); int dir_fd =3D dirfd(dir_p); char buf[4096]; ssize_t rc =3D getdents(dir_fd, buf, 4096); ssize_t offset =3D 0; int ii =3D 0; while (offset < rc) { struct dirent *dent =3D (struct dirent*)(buf + offset); printf("dents[%d] =3D {\n", ii); printf(" .d_fileno =3D %lu,\n", dent->d_fileno); printf(" .d_off =3D %ld,\n", dent->d_off); printf(" .d_name =3D \"%s\",\n", dent->d_name); printf("}\n"); offset +=3D dent->d_reclen; ii +=3D 1; } return 0; } --=20 You are receiving this mail because: You are the assignee for the bug.=