From owner-svn-src-stable@freebsd.org Sat Apr 14 12:52:35 2018 Return-Path: Delivered-To: svn-src-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 39F1FF9E03C; Sat, 14 Apr 2018 12:52:35 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id DBC70749F4; Sat, 14 Apr 2018 12:52:34 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id D6D8B2884F; Sat, 14 Apr 2018 12:52:34 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w3ECqYXI048337; Sat, 14 Apr 2018 12:52:34 GMT (envelope-from emaste@FreeBSD.org) Received: (from emaste@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w3ECqYnd048336; Sat, 14 Apr 2018 12:52:34 GMT (envelope-from emaste@FreeBSD.org) Message-Id: <201804141252.w3ECqYnd048336@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: emaste set sender to emaste@FreeBSD.org using -f From: Ed Maste Date: Sat, 14 Apr 2018 12:52:34 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r332502 - stable/11/sys/sys X-SVN-Group: stable-11 X-SVN-Commit-Author: emaste X-SVN-Commit-Paths: stable/11/sys/sys X-SVN-Commit-Revision: 332502 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 14 Apr 2018 12:52:35 -0000 Author: emaste Date: Sat Apr 14 12:52:34 2018 New Revision: 332502 URL: https://svnweb.freebsd.org/changeset/base/332502 Log: MFC r331077 (brooks): Add _IOC_NEWLEN() and _IOC_NEWTYPE() macros. These macros take an existing ioctl(2) command and replace the length with the specified length or length of the specified type respectively. These can be used to define commands for 32-bit compatibility with fewer opportunities for cut-and-paste errors then a whole new definition. Obtained from: CheriBSD Sponsored by: DARPA, AFRL Modified: stable/11/sys/sys/ioccom.h Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/sys/ioccom.h ============================================================================== --- stable/11/sys/sys/ioccom.h Sat Apr 14 12:07:05 2018 (r332501) +++ stable/11/sys/sys/ioccom.h Sat Apr 14 12:52:34 2018 (r332502) @@ -59,6 +59,10 @@ #define _IOW(g,n,t) _IOC(IOC_IN, (g), (n), sizeof(t)) /* this should be _IORW, but stdio got there first */ #define _IOWR(g,n,t) _IOC(IOC_INOUT, (g), (n), sizeof(t)) +/* Replace length/type in an ioctl command. */ +#define _IOC_NEWLEN(ioc, len) \ + (((~(IOCPARM_MASK << 16)) & (ioc)) | (((len) & IOCPARM_MASK) << 16)) +#define _IOC_NEWTYPE(ioc, type) _IOC_NEWLEN((ioc), sizeof(type)) #ifdef _KERNEL