From patchwork Thu Jun 4 20:22:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 1303725 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=Cmns5x+Z; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 49dHMl3xmvz9sSd for ; Fri, 5 Jun 2020 06:25:23 +1000 (AEST) Received: from localhost ([::1]:57502 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jgwQT-00005Y-9L for incoming@patchwork.ozlabs.org; Thu, 04 Jun 2020 16:25:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49444) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jgwNz-00042P-SK for qemu-devel@nongnu.org; Thu, 04 Jun 2020 16:22:47 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:56501 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 1jgwNz-0005Uz-3H for qemu-devel@nongnu.org; Thu, 04 Jun 2020 16:22:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1591302166; 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: in-reply-to:in-reply-to:references:references; bh=550l0y6cMuVFZ9yDHqjsncXPIXXkomnBdKzUAnASITk=; b=Cmns5x+ZNm5rncOKgjQajHChaR4rjzXHCdk0ry1EBQiuizIqpfmmEtbiuvx0gvr/uc9opY SmSzGR80R+efhzaunmOv1Au9s8+aarIPI4Cob1tPYKMhqdovP1n+NHYRLs3PT/zYDqlBHy HW+VAM/FcZxy0mdoQfb8YM5v3v68pHI= 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-440-0lAQmdoJOAWEyA_irvyV4g-1; Thu, 04 Jun 2020 16:22:44 -0400 X-MC-Unique: 0lAQmdoJOAWEyA_irvyV4g-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AE061464; Thu, 4 Jun 2020 20:22:43 +0000 (UTC) Received: from probe.redhat.com (ovpn-117-188.rdu2.redhat.com [10.10.117.188]) by smtp.corp.redhat.com (Postfix) with ESMTP id DA0445D9D3; Thu, 4 Jun 2020 20:22:42 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org Subject: [PATCH v3 06/16] python/qmp.py: add QMPProtocolError Date: Thu, 4 Jun 2020 16:22:26 -0400 Message-Id: <20200604202236.25039-7-jsnow@redhat.com> In-Reply-To: <20200604202236.25039-1-jsnow@redhat.com> References: <20200604202236.25039-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=jsnow@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/04 12:22:43 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=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: Kevin Wolf , Eduardo Habkost , qemu-block@nongnu.org, John Snow , Max Reitz , Cleber Rosa , philmd@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" In the case that we receive a reply but are unable to understand it, use this exception name to indicate that case. Signed-off-by: John Snow Reviewed-by: Philippe Mathieu-Daudé --- python/qemu/qmp.py | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/python/qemu/qmp.py b/python/qemu/qmp.py index 1ae36050a42..7935dababbf 100644 --- a/python/qemu/qmp.py +++ b/python/qemu/qmp.py @@ -62,6 +62,12 @@ class QMPTimeoutError(QMPError): """ +class QMPProtocolError(QMPError): + """ + QMP protocol error; unexpected response + """ + + class QMPResponseError(QMPError): """ Represents erroneous QMP monitor reply @@ -266,6 +272,10 @@ def command(self, cmd, **kwds): ret = self.cmd(cmd, kwds) if 'error' in ret: raise QMPResponseError(ret) + if 'return' not in ret: + raise QMPProtocolError( + "'return' key not found in QMP response '{}'".format(str(ret)) + ) return cast(QMPReturnValue, ret['return']) def pull_event(self, wait=False):