Return-Path: linux-nfs-owner@vger.kernel.org Received: from gproxy7-pub.mail.unifiedlayer.com ([70.40.196.235]:43174 "HELO gproxy7-pub.mail.unifiedlayer.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751294AbaKDTT6 convert rfc822-to-8bit (ORCPT ); Tue, 4 Nov 2014 14:19:58 -0500 From: Henrique Martins To: Steve Dickson cc: linux-nfs@vger.kernel.org Subject: [PATCH 1/1] nfsd/exportfs: changes handling of unresolvable entries MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 04 Nov 2014 11:19:49 -0800 Message-ID: <8957.1415128789@monster.martins.cc> Sender: linux-nfs-owner@vger.kernel.org List-ID: In-reply-to: <54591385.2080007@RedHat.com> References: <14393.1409936528@monster.martins.cc> <15531.1414780435@monster.martins.cc> <54591385.2080007@RedHat.com> Comments: In-reply-to Steve Dickson message dated "Tue, 04 Nov 2014 12:57:25 -0500." X-Mailer: MH-E 8.5; nmh 1.6; XEmacs 21.5 (beta34) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" -------- --=-=-= Content-Type: text/plain; charset=utf-8 Attaching patch to nfs/exportfs to allow nfsd to start when there are some, but not all, unresolvable entries in /etc/exports. Nfs currently fails to start in my laptop which has work machines listed in exports that aren't resolvable when I'm not in the office, and home machines in exports that aren't resolvable when I'm not home. Files changed: - in client.c/client_lookup: changes the (x)log level for unresolvable entries in /etc/exports from L_ERROR to L_WARNING, - in hostname.c/host_addrinfo: changes the (x)log level for unresolvable entries in /etc/exports from D_GENERAL to D_PARSE, - in export.c/export_read: counts the number of exported volume entries and generates a (x)log L_ERROR if no volumes are exported. Built and tested on a Fedora 20 (fully updated) system. Signed-off-by: Henrique Martins --- --=-=-= Content-Type: text/x-diff; charset=utf-8 Content-Disposition: inline; filename=nfs-utils-1.3.0-exportfs.patch --- nfs-utils-1.3.0/support/export/client.c.orig 2014-09-05 08:21:37.568364360 -0700 +++ nfs-utils-1.3.0/support/export/client.c 2014-09-05 08:21:41.709451778 -0700 @@ -277,7 +277,7 @@ if (htype == MCL_FQDN && !canonical) { ai = host_addrinfo(hname); if (!ai) { - xlog(L_ERROR, "Failed to resolve %s", hname); + xlog(L_WARNING, "Failed to resolve %s", hname); goto out; } hname = ai->ai_canonname; --- nfs-utils-1.3.0/support/export/hostname.c.orig 2014-09-05 08:09:07.387551291 -0700 +++ nfs-utils-1.3.0/support/export/hostname.c 2014-09-05 08:09:13.799573723 -0700 @@ -175,11 +175,11 @@ case 0: return ai; case EAI_SYSTEM: - xlog(D_GENERAL, "%s: failed to resolve %s: (%d) %m", + xlog(D_PARSE, "%s: failed to resolve %s: (%d) %m", __func__, hostname, errno); break; default: - xlog(D_GENERAL, "%s: failed to resolve %s: %s", + xlog(D_PARSE, "%s: failed to resolve %s: %s", __func__, hostname, gai_strerror(error)); break; } --- nfs-utils-1.3.0/support/export/export.c.orig 2014-03-25 08:12:07.000000000 -0700 +++ nfs-utils-1.3.0/support/export/export.c 2014-09-05 09:23:37.424105125 -0700 @@ -76,15 +76,22 @@ struct exportent *eep; nfs_export *exp; + int volumes = 0; + setexportent(fname, "r"); while ((eep = getexportent(0,1)) != NULL) { exp = export_lookup(eep->e_hostname, eep->e_path, 0); - if (!exp) - export_create(eep, 0); + if (!exp) { + exp = export_create(eep, 0); + if (exp) + volumes++; + } else warn_duplicated_exports(exp, eep); } endexportent(); + if (volumes == 0) + xlog(L_ERROR, "no or all unresolvable export entries"); } /** --=-=-=--