From patchwork Thu Jun 16 09:47:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 9180359 X-Patchwork-Delegate: christophe.varoqui@free.fr Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2B9456088F for ; Thu, 16 Jun 2016 09:51:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1E3ED20410 for ; Thu, 16 Jun 2016 09:51:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 12BF728354; Thu, 16 Jun 2016 09:51:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from mx6-phx2.redhat.com (mx6-phx2.redhat.com [209.132.183.39]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BF86B27D45 for ; Thu, 16 Jun 2016 09:51:44 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by mx6-phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u5G9mK2C006622; Thu, 16 Jun 2016 05:48:20 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id u5G9lv1m005725 for ; Thu, 16 Jun 2016 05:47:57 -0400 Received: from mx1.redhat.com (ext-mx09.extmail.prod.ext.phx2.redhat.com [10.5.110.38]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u5G9lvbf002230 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 16 Jun 2016 05:47:57 -0400 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id EF273627C3; Thu, 16 Jun 2016 09:47:56 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id CEB2FADCB; Thu, 16 Jun 2016 09:47:52 +0000 (UTC) From: Hannes Reinecke To: Christophe Varoqui Date: Thu, 16 Jun 2016 11:47:18 +0200 Message-Id: <1466070465-1021-13-git-send-email-hare@suse.de> In-Reply-To: <1466070465-1021-1-git-send-email-hare@suse.de> References: <1466070465-1021-1-git-send-email-hare@suse.de> X-Greylist: Sender IP whitelisted by DNSRBL, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 16 Jun 2016 09:47:57 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 16 Jun 2016 09:47:57 +0000 (UTC) for IP:'195.135.220.15' DOMAIN:'mx2.suse.de' HELO:'mx2.suse.de' FROM:'hare@suse.de' RCPT:'' X-RedHat-Spam-Score: -3.327 (BAYES_50, DCC_REPUT_00_12, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, SPF_PASS) 195.135.220.15 mx2.suse.de 195.135.220.15 mx2.suse.de X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Scanned-By: MIMEDefang 2.78 on 10.5.110.38 X-loop: dm-devel@redhat.com Cc: Hannes Reinecke , dm-devel@redhat.com Subject: [dm-devel] [PATCH 12/39] libmultipath/uevent.c: handle errors from setsockopt() X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Virus-Scanned: ClamAV using ClamSMTP Found by coverity. Signed-off-by: Hannes Reinecke --- libmultipath/uevent.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/libmultipath/uevent.c b/libmultipath/uevent.c index fb8b4a7..ff4bc86 100644 --- a/libmultipath/uevent.c +++ b/libmultipath/uevent.c @@ -291,8 +291,12 @@ int failback_listen(void) } /* enable receiving of the sender credentials */ - setsockopt(sock, SOL_SOCKET, SO_PASSCRED, - &feature_on, sizeof(feature_on)); + retval = setsockopt(sock, SOL_SOCKET, SO_PASSCRED, + &feature_on, sizeof(feature_on)); + if (retval < 0) { + condlog(0, "failed to enable credential passing, exit"); + goto exit; + } } else { /* Fallback to read kernel netlink events */ @@ -330,8 +334,11 @@ int failback_listen(void) condlog(3, "receive buffer size for socket is %u.", rcvsz); /* enable receiving of the sender credentials */ - setsockopt(sock, SOL_SOCKET, SO_PASSCRED, - &feature_on, sizeof(feature_on)); + if (setsockopt(sock, SOL_SOCKET, SO_PASSCRED, + &feature_on, sizeof(feature_on)) < 0) { + condlog(0, "error on enabling credential passing for socket"); + exit(1); + } retval = bind(sock, (struct sockaddr *) &snl, sizeof(struct sockaddr_nl));