From owner-svn-src-head@FreeBSD.ORG Thu Oct 16 02:24:20 2014 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 994D3D02; Thu, 16 Oct 2014 02:24:20 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (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 6CD2C619; Thu, 16 Oct 2014 02:24:20 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id s9G2OKKE015296; Thu, 16 Oct 2014 02:24:20 GMT (envelope-from araujo@FreeBSD.org) Received: (from araujo@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id s9G2OKmI015295; Thu, 16 Oct 2014 02:24:20 GMT (envelope-from araujo@FreeBSD.org) Message-Id: <201410160224.s9G2OKmI015295@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: araujo set sender to araujo@FreeBSD.org using -f From: Marcelo Araujo Date: Thu, 16 Oct 2014 02:24:20 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r273159 - head/sys/fs/nfsserver X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Oct 2014 02:24:20 -0000 Author: araujo (ports committer) Date: Thu Oct 16 02:24:19 2014 New Revision: 273159 URL: https://svnweb.freebsd.org/changeset/base/273159 Log: Add two sysctl(8) to enable/disable NFSv4 server to check when setting user nobody and/or setting group nogroup as owner of a file or directory. Usually at the client side, if there is an username that is not in the client's passwd database, some clients will send 'nobody@' in the wire and the NFSv4 server will treat it as an ERROR. However, if you have a valid user nobody in your passwd database, the NFSv4 server will treat it as a NFSERR_BADOWNER as its believes the client doesn't has the username mapped. Submitted by: Loic Blot Reviewed by: rmacklem Approved by: rmacklem MFC after: 2 weeks Modified: head/sys/fs/nfsserver/nfs_nfsdsubs.c Modified: head/sys/fs/nfsserver/nfs_nfsdsubs.c ============================================================================== --- head/sys/fs/nfsserver/nfs_nfsdsubs.c Thu Oct 16 02:23:27 2014 (r273158) +++ head/sys/fs/nfsserver/nfs_nfsdsubs.c Thu Oct 16 02:24:19 2014 (r273159) @@ -66,6 +66,16 @@ SYSCTL_INT(_vfs_nfsd, OID_AUTO, disable_ &disable_checkutf8, 0, "Disable the NFSv4 check for a UTF8 compliant name"); +static int enable_nobodycheck = 1; +SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_nobodycheck, CTLFLAG_RW, + &enable_nobodycheck, 0, + "Enable the NFSv4 check when setting user nobody as owner"); + +static int enable_nogroupcheck = 1; +SYSCTL_INT(_vfs_nfsd, OID_AUTO, enable_nogroupcheck, CTLFLAG_RW, + &enable_nogroupcheck, 0, + "Enable the NFSv4 check when setting group nogroup as owner"); + static char nfsrv_hexdigit(char, int *); /* @@ -1543,8 +1553,10 @@ nfsrv_checkuidgid(struct nfsrv_descript */ if (NFSVNO_NOTSETUID(nvap) && NFSVNO_NOTSETGID(nvap)) goto out; - if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid == nfsrv_defaultuid) - || (NFSVNO_ISSETGID(nvap) && nvap->na_gid == nfsrv_defaultgid)) { + if ((NFSVNO_ISSETUID(nvap) && nvap->na_uid == nfsrv_defaultuid && + enable_nobodycheck == 1) + || (NFSVNO_ISSETGID(nvap) && nvap->na_gid == nfsrv_defaultgid && + enable_nogroupcheck == 1)) { error = NFSERR_BADOWNER; goto out; }