From owner-freebsd-bugs@freebsd.org Thu Jun 2 13:10:01 2016 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 598E1B67419 for ; Thu, 2 Jun 2016 13:10:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4A2A31498 for ; Thu, 2 Jun 2016 13:10:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u52DA1G1081595 for ; Thu, 2 Jun 2016 13:10:01 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 209791] To tunefs utilities I added flag for generate new ufsid (unique filesystem id). Date: Thu, 02 Jun 2016 13:10:01 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 10.3-RELEASE X-Bugzilla-Keywords: patch X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: pavelivolkov@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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: 2.1.22 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Jun 2016 13:10:01 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209791 --- Comment #1 from Pavel Volkov --- Hello. To generate a new ufsid I used an algorithm from a file: /usr/src/sbin/newfs/mkfs.c 140 time(&utime); 465 sblock.fs_id[0] =3D (long)utime; 466 sblock.fs_id[1] =3D newfs_random(); 1149 /* 1150 * For the regression test, return predictable random values. 1151 * Otherwise use a true random number generator. 1152 */ 1153 static u_int32_t 1154 newfs_random(void) 1155 { 1156 static int nextnum =3D 1; 1157 1158 if (Rflag) 1159 return (nextnum++); 1160 return (arc4random()); 1161 } --=20 You are receiving this mail because: You are the assignee for the bug.=