From patchwork Tue Jun 30 14:57:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 11634249 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 492EE912 for ; Tue, 30 Jun 2020 14:58:43 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D352F20675 for ; Tue, 30 Jun 2020 14:58:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DGpsMjL+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D352F20675 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:55758 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jqHib-00048j-Ps for patchwork-qemu-devel@patchwork.kernel.org; Tue, 30 Jun 2020 10:58:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58924) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jqHhm-0002e0-Dz for qemu-devel@nongnu.org; Tue, 30 Jun 2020 10:57:50 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:52644 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jqHhk-0003FB-Sl for qemu-devel@nongnu.org; Tue, 30 Jun 2020 10:57:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593529067; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=g1yfQKn6GEwqzNUZ58K70N0BMEJc6w6x0PkNaCMeo3A=; b=DGpsMjL+ayBRUwY+8yGWYcvbxZJlMYSJDrTRadINTwrGqneq3KjVTIVbhcfwhWD8H+9ABi 3VA603Pkg/HHzdHQsuwjhMSUnCPeXllpLXOvQWWpV6AKG4Kx4PkQ6t3rEOj8wzi+6og6+a fHtebJrHRq3yXmjWz0c/pkUSHvUgHPs= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-320-V2WzYmbKMSimGuLAYyXooA-1; Tue, 30 Jun 2020 10:57:45 -0400 X-MC-Unique: V2WzYmbKMSimGuLAYyXooA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A39B9185B384; Tue, 30 Jun 2020 14:57:43 +0000 (UTC) Received: from thinkpad.redhat.com (ovpn-114-211.ams2.redhat.com [10.36.114.211]) by smtp.corp.redhat.com (Postfix) with ESMTP id D38D6741A6; Tue, 30 Jun 2020 14:57:38 +0000 (UTC) From: Laurent Vivier To: qemu-devel@nongnu.org Subject: [PATCH v2 0/2] net: tap: check file descriptor can be used Date: Tue, 30 Jun 2020 16:57:35 +0200 Message-Id: <20200630145737.232095-1-lvivier@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=lvivier@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=lvivier@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/30 03:55:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Stefan Weil , Jason Wang , Markus Armbruster , Gerd Hoffmann , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" v2: Add patch from Daniel to check the fd can be used I have updated Daniel's patch not to check for EINVAL on TUNGETIFF as I think we can avoid this special case because TUNGETIFF is available since kernel v2.6.27 (October 2008) Moreover I think the code was wrong as it was checking with -EINVAL and not EINVAL. Daniel P. Berrang�� (1): net: detect errors from probing vnet hdr flag for TAP devices Laurent Vivier (1): net: tap: check if the file descriptor is valid before using it include/qemu/sockets.h | 1 + net/tap-bsd.c | 2 +- net/tap-linux.c | 8 +++++--- net/tap-solaris.c | 2 +- net/tap-stub.c | 2 +- net/tap.c | 38 +++++++++++++++++++++++++++++++++----- net/tap_int.h | 2 +- util/oslib-posix.c | 5 +++++ util/oslib-win32.c | 6 ++++++ 9 files changed, 54 insertions(+), 12 deletions(-)