From patchwork Tue Nov 22 14:03:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Conole X-Patchwork-Id: 13052402 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9806FC4332F for ; Tue, 22 Nov 2022 14:05:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234078AbiKVOF5 (ORCPT ); Tue, 22 Nov 2022 09:05:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233995AbiKVOFQ (ORCPT ); Tue, 22 Nov 2022 09:05:16 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6FA51E3FF for ; Tue, 22 Nov 2022 06:03:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669125796; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Dwl7SbsKJoZEUQcBj1alw3gjGL8Zf4MEaXU4djfJOx0=; b=CLT9jZNSBYBjC5DFMiCV3vEuVnayuZZMEv8ZEpP4RZJlJmDes7675hFYFGsUkBTTPnS6WJ PLRuyetF8TvkXm6aT+m3ituGxcB7l44AxyJbjvjC5pmda81JonFSnN1mzvay3KTGaLH0Te 42koe+wzYfIfy/VxNJ4SBQ4fnr3wraA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-265-Pe1qYOMCPw-rHDPPfBq8NA-1; Tue, 22 Nov 2022 09:03:11 -0500 X-MC-Unique: Pe1qYOMCPw-rHDPPfBq8NA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A8A38811E75; Tue, 22 Nov 2022 14:03:10 +0000 (UTC) Received: from RHTPC1VM0NT.redhat.com (unknown [10.22.16.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id 33BDC40C6EC6; Tue, 22 Nov 2022 14:03:10 +0000 (UTC) From: Aaron Conole To: netdev@vger.kernel.org Cc: Pravin B Shelar , Jakub Kicinski , "David S. Miller" , Paolo Abeni , Eric Dumazet , Thomas Graf , dev@openvswitch.org, Eelco Chaudron , Ilya Maximets , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [RFC net-next 1/6] openvswitch: exclude kernel flow key from upcalls Date: Tue, 22 Nov 2022 09:03:02 -0500 Message-Id: <20221122140307.705112-2-aconole@redhat.com> In-Reply-To: <20221122140307.705112-1-aconole@redhat.com> References: <20221122140307.705112-1-aconole@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org When processing upcall commands, two groups of data are available to userspace for processing: the actual packet data and the kernel sw flow key data. The inclusion of the flow key allows the userspace avoid running through the dissection again. However, the userspace can choose to ignore the flow key data, as is the case in some ovs-vswitchd upcall processing. For these messages, having the flow key data merely adds additional data to the upcall pipeline without any actual gain. Userspace simply throws the data away anyway. Introduce a new feature OVS_DP_F_EXCLUDE_UPCALL_FLOW_KEY which signals that the userspace doesn't want upcalls included with specific class of message (for example MISS messages). The associated attribute OVS_DP_ATTR_EXCLUDE_CMDS tells which specific commands to omit via a bitmask. A test will be added to showcase using the feature. Signed-off-by: Aaron Conole --- include/uapi/linux/openvswitch.h | 6 ++++++ net/openvswitch/datapath.c | 26 ++++++++++++++++++++++---- net/openvswitch/datapath.h | 2 ++ 3 files changed, 30 insertions(+), 4 deletions(-) diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h index 94066f87e9ee..238e62ecba46 100644 --- a/include/uapi/linux/openvswitch.h +++ b/include/uapi/linux/openvswitch.h @@ -95,6 +95,9 @@ enum ovs_datapath_attr { * per-cpu dispatch mode */ OVS_DP_ATTR_IFINDEX, + OVS_DP_ATTR_EXCLUDE_CMDS, /* u32 mask of OVS_PACKET_CMDs for + * omitting FLOW_KEY attribute + */ __OVS_DP_ATTR_MAX }; @@ -138,6 +141,9 @@ struct ovs_vport_stats { /* Allow per-cpu dispatch of upcalls */ #define OVS_DP_F_DISPATCH_UPCALL_PER_CPU (1 << 3) +/* Drop Flow key data from upcall packet cmds */ +#define OVS_DP_F_EXCLUDE_UPCALL_FLOW_KEY (1 << 4) + /* Fixed logical ports. */ #define OVSP_LOCAL ((__u32)0) diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index 861dfb8daf4a..6afde7de492c 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -470,9 +470,13 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb, } upcall->dp_ifindex = dp_ifindex; - err = ovs_nla_put_key(key, key, OVS_PACKET_ATTR_KEY, false, user_skb); - if (err) - goto out; + if (!(dp->user_features & OVS_DP_F_EXCLUDE_UPCALL_FLOW_KEY) || + !(dp->upcall_exclude_cmds & (1U << upcall_info->cmd))) { + err = ovs_nla_put_key(key, key, OVS_PACKET_ATTR_KEY, false, + user_skb); + if (err) + goto out; + } if (upcall_info->userdata) __nla_put(user_skb, OVS_PACKET_ATTR_USERDATA, @@ -1526,6 +1530,7 @@ static size_t ovs_dp_cmd_msg_size(void) msgsize += nla_total_size(sizeof(u32)); /* OVS_DP_ATTR_USER_FEATURES */ msgsize += nla_total_size(sizeof(u32)); /* OVS_DP_ATTR_MASKS_CACHE_SIZE */ msgsize += nla_total_size(sizeof(u32) * nr_cpu_ids); /* OVS_DP_ATTR_PER_CPU_PIDS */ + msgsize += nla_total_size(sizeof(u32)); /* OVS_DP_ATTR_EXCLUDE_CMDS */ return msgsize; } @@ -1574,6 +1579,10 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb, goto nla_put_failure; } + if (nla_put_u32(skb, OVS_DP_ATTR_EXCLUDE_CMDS, + dp->upcall_exclude_cmds)) + goto nla_put_failure; + genlmsg_end(skb, ovs_header); return 0; @@ -1684,7 +1693,8 @@ static int ovs_dp_change(struct datapath *dp, struct nlattr *a[]) if (user_features & ~(OVS_DP_F_VPORT_PIDS | OVS_DP_F_UNALIGNED | OVS_DP_F_TC_RECIRC_SHARING | - OVS_DP_F_DISPATCH_UPCALL_PER_CPU)) + OVS_DP_F_DISPATCH_UPCALL_PER_CPU | + OVS_DP_F_EXCLUDE_UPCALL_FLOW_KEY)) return -EOPNOTSUPP; #if !IS_ENABLED(CONFIG_NET_TC_SKB_EXT) @@ -1705,6 +1715,14 @@ static int ovs_dp_change(struct datapath *dp, struct nlattr *a[]) dp->user_features = user_features; + if (dp->user_features & OVS_DP_F_EXCLUDE_UPCALL_FLOW_KEY) { + if (!a[OVS_DP_ATTR_EXCLUDE_CMDS]) + return -EINVAL; + + dp->upcall_exclude_cmds = + nla_get_u32(a[OVS_DP_ATTR_EXCLUDE_CMDS]); + } + if (dp->user_features & OVS_DP_F_DISPATCH_UPCALL_PER_CPU && a[OVS_DP_ATTR_PER_CPU_PIDS]) { /* Upcall Netlink Port IDs have been updated */ diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h index 0cd29971a907..3c951e25509e 100644 --- a/net/openvswitch/datapath.h +++ b/net/openvswitch/datapath.h @@ -101,6 +101,8 @@ struct datapath { u32 max_headroom; + u32 upcall_exclude_cmds; + /* Switch meters. */ struct dp_meter_table meter_tbl; From patchwork Tue Nov 22 14:03:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Conole X-Patchwork-Id: 13052398 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3759CC43217 for ; Tue, 22 Nov 2022 14:04:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233954AbiKVOES (ORCPT ); Tue, 22 Nov 2022 09:04:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233948AbiKVOEQ (ORCPT ); Tue, 22 Nov 2022 09:04:16 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13C291DA5A for ; Tue, 22 Nov 2022 06:03:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669125795; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QNoI4qCUFYL/xV13yMWx+XxtSlVza2fkeLu+mGHpsuU=; b=ckBkrin0CLVsg11H0+GI9hdPXo+kJIrcbuGqcSbE8KNwi5bxMFoahBAb63L0/mwLvY2sU1 oHhuDfgE7CVKl5jy3N4kXgz22k22gcYOl3bWrsQ7e2aVvSmeATnBQfwv1X033HBm6agYg+ 7aG2itiZMm/00sN098GW1VgUtEcqiv0= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-653-naWpKHZOMUKlEWZ2T80u0g-1; Tue, 22 Nov 2022 09:03:12 -0500 X-MC-Unique: naWpKHZOMUKlEWZ2T80u0g-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3D9E51C08790; Tue, 22 Nov 2022 14:03:11 +0000 (UTC) Received: from RHTPC1VM0NT.redhat.com (unknown [10.22.16.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id B92A540C6EC6; Tue, 22 Nov 2022 14:03:10 +0000 (UTC) From: Aaron Conole To: netdev@vger.kernel.org Cc: Pravin B Shelar , Jakub Kicinski , "David S. Miller" , Paolo Abeni , Eric Dumazet , Thomas Graf , dev@openvswitch.org, Eelco Chaudron , Ilya Maximets , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [RFC net-next 2/6] selftests: openvswitch: add interface support Date: Tue, 22 Nov 2022 09:03:03 -0500 Message-Id: <20221122140307.705112-3-aconole@redhat.com> In-Reply-To: <20221122140307.705112-1-aconole@redhat.com> References: <20221122140307.705112-1-aconole@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Includes an associated test to generate netns and connect interfaces, with the option to include tcp tracing. This will be used in the future when flow support is added for additional test cases. Signed-off-by: Aaron Conole --- .../selftests/net/openvswitch/openvswitch.sh | 54 ++++++++ .../selftests/net/openvswitch/ovs-dpctl.py | 120 ++++++++++++++++-- 2 files changed, 165 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh index 7ce46700a3ae..ce14913150fe 100755 --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh @@ -70,6 +70,49 @@ ovs_add_dp () { on_exit "ovs_sbx $sbxname python3 $ovs_base/ovs-dpctl.py del-dp $1;" } +ovs_add_if () { + info "Adding IF to DP: br:$2 if:$3" + ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if "$2" "$3" || return 1 +} + +ovs_del_if () { + info "Deleting IF from DP: br:$2 if:$3" + ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-if "$2" "$3" || return 1 +} + +ovs_netns_spawn_daemon() { + sbx=$1 + shift + netns=$1 + shift + info "spawning cmd: $*" + ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & + pid=$! + ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null" +} + +ovs_add_netns_and_veths () { + info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}" + + ovs_sbx "$1" ip netns add "$3" || return 1 + on_exit "ovs_sbx $1 ip netns del $3" + ovs_sbx "$1" ip link add "$4" type veth peer name "$5" || return 1 + on_exit "ovs_sbx $1 ip link del $4 >/dev/null 2>&1" + ovs_sbx "$1" ip link set "$4" up || return 1 + ovs_sbx "$1" ip link set "$5" netns "$3" || return 1 + ovs_sbx "$1" ip netns exec "$3" ip link set "$5" up || return 1 + + if [ "$6" != "" ]; then + ovs_sbx "$1" ip netns exec "$4" ip addr add "$6" dev "$5" \ + || return 1 + fi + ovs_add_if "$1" "$2" "$4" || return 1 + [ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$3" \ + tcpdump -i any -s 65535 >> ${ovs_dir}/tcpdump_"$3".log + + return 0 +} + usage() { echo echo "$0 [OPTIONS] [TEST]..." @@ -101,6 +144,17 @@ test_netlink_checks () { return 1 fi + ovs_add_netns_and_veths "test_netlink_checks" nv0 left left0 l0 || \ + return 1 + ovs_add_netns_and_veths "test_netlink_checks" nv0 right right0 r0 || \ + return 1 + [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ + wc -l) == 3 ] || \ + return 1 + ovs_del_if "test_netlink_checks" nv0 right0 || return 1 + [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ + wc -l) == 2 ] || \ + return 1 return 0 } diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py index 3243c90d449e..338e9b2cd660 100644 --- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py +++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py @@ -170,6 +170,13 @@ class OvsDatapath(GenericNetlinkSocket): class OvsVport(GenericNetlinkSocket): + + OVS_VPORT_TYPE_NETDEV = 1 + OVS_VPORT_TYPE_INTERNAL = 2 + OVS_VPORT_TYPE_GRE = 3 + OVS_VPORT_TYPE_VXLAN = 4 + OVS_VPORT_TYPE_GENEVE = 5 + class ovs_vport_msg(ovs_dp_msg): nla_map = ( ("OVS_VPORT_ATTR_UNSPEC", "none"), @@ -197,17 +204,30 @@ class OvsVport(GenericNetlinkSocket): ) def type_to_str(vport_type): - if vport_type == 1: + if vport_type == OvsVport.OVS_VPORT_TYPE_NETDEV: return "netdev" - elif vport_type == 2: + elif vport_type == OvsVport.OVS_VPORT_TYPE_INTERNAL: return "internal" - elif vport_type == 3: + elif vport_type == OvsVport.OVS_VPORT_TYPE_GRE: return "gre" - elif vport_type == 4: + elif vport_type == OvsVport.OVS_VPORT_TYPE_VXLAN: return "vxlan" - elif vport_type == 5: + elif vport_type == OvsVport.OVS_VPORT_TYPE_GENEVE: return "geneve" - return "unknown:%d" % vport_type + raise ValueError("Unknown vport type:%d" % vport_type) + + def str_to_type(vport_type): + if vport_type == "netdev": + return OvsVport.OVS_VPORT_TYPE_NETDEV + elif vport_type == "internal": + return OvsVport.OVS_VPORT_TYPE_INTERNAL + elif vport_type == "gre": + return OvsVport.OVS_VPORT_TYPE_INTERNAL + elif vport_type == "vxlan": + return OvsVport.OVS_VPORT_TYPE_VXLAN + elif vport_type == "geneve": + return OvsVport.OVS_VPORT_TYPE_GENEVE + raise ValueError("Unknown vport type: '%s'" % vport_type) def __init__(self): GenericNetlinkSocket.__init__(self) @@ -238,8 +258,51 @@ class OvsVport(GenericNetlinkSocket): raise ne return reply + def attach(self, dpindex, vport_ifname, ptype): + msg = OvsVport.ovs_vport_msg() + + msg["cmd"] = OVS_VPORT_CMD_NEW + msg["version"] = OVS_DATAPATH_VERSION + msg["reserved"] = 0 + msg["dpifindex"] = dpindex + port_type = OvsVport.str_to_type(ptype) + + msg["attrs"].append(["OVS_VPORT_ATTR_TYPE", port_type]) + msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname]) + msg["attrs"].append(["OVS_VPORT_ATTR_UPCALL_PID", [self.pid]]) + + try: + reply = self.nlm_request( + msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK + ) + reply = reply[0] + except NetlinkError as ne: + raise ne + return reply + + def detach(self, dpindex, vport_ifname): + msg = OvsVport.ovs_vport_msg() + + msg["cmd"] = OVS_VPORT_CMD_DEL + msg["version"] = OVS_DATAPATH_VERSION + msg["reserved"] = 0 + msg["dpifindex"] = dpindex + msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname]) -def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB()): + try: + reply = self.nlm_request( + msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK + ) + reply = reply[0] + except NetlinkError as ne: + if ne.code == errno.ENODEV: + reply = None + else: + raise ne + return reply + + +def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB(), vpl=OvsVport()): dp_name = dp_lookup_rep.get_attr("OVS_DP_ATTR_NAME") base_stats = dp_lookup_rep.get_attr("OVS_DP_ATTR_STATS") megaflow_stats = dp_lookup_rep.get_attr("OVS_DP_ATTR_MEGAFLOW_STATS") @@ -265,7 +328,6 @@ def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB()): print(" features: 0x%X" % user_features) # port print out - vpl = OvsVport() for iface in ndb.interfaces: rep = vpl.info(iface.ifname, ifindex) if rep is not None: @@ -312,9 +374,25 @@ def main(argv): deldpcmd = subparsers.add_parser("del-dp") deldpcmd.add_argument("deldp", help="Datapath Name") + addifcmd = subparsers.add_parser("add-if") + addifcmd.add_argument("dpname", help="Datapath Name") + addifcmd.add_argument("addif", help="Interface name for adding") + addifcmd.add_argument( + "-t", + "--ptype", + type=str, + default="netdev", + choices=["netdev", "internal"], + help="Interface type (default netdev)", + ) + delifcmd = subparsers.add_parser("del-if") + delifcmd.add_argument("dpname", help="Datapath Name") + delifcmd.add_argument("delif", help="Interface name for adding") + args = parser.parse_args() ovsdp = OvsDatapath() + ovsvp = OvsVport() ndb = NDB() if hasattr(args, "showdp"): @@ -328,7 +406,7 @@ def main(argv): if rep is not None: found = True - print_ovsdp_full(rep, iface.index, ndb) + print_ovsdp_full(rep, iface.index, ndb, ovsvp) if not found: msg = "No DP found" @@ -343,6 +421,30 @@ def main(argv): print("DP '%s' added" % args.adddp) elif hasattr(args, "deldp"): ovsdp.destroy(args.deldp) + elif hasattr(args, "addif"): + rep = ovsdp.info(args.dpname, 0) + if rep is None: + print("DP '%s' not found." % args.dpname) + return 1 + rep = ovsvp.attach(rep["dpifindex"], args.addif, args.ptype) + msg = "vport '%s'" % args.addif + if rep and rep["error"] == 0: + msg += " added." + else: + msg += " failed to add." + print(msg) + elif hasattr(args, "delif"): + rep = ovsdp.info(args.dpname, 0) + if rep is None: + print("DP '%s' not found." % args.dpname) + return 1 + rep = ovsvp.detach(rep["dpifindex"], args.delif) + msg = "vport '%s'" % args.delif + if rep and rep["error"] == 0: + msg += " removed." + else: + msg += " failed to remove." + print(msg) return 0 From patchwork Tue Nov 22 14:03:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Conole X-Patchwork-Id: 13052399 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A03D9C4332F for ; Tue, 22 Nov 2022 14:05:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233975AbiKVOFG (ORCPT ); Tue, 22 Nov 2022 09:05:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233965AbiKVOFE (ORCPT ); Tue, 22 Nov 2022 09:05:04 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD6991DF1A for ; Tue, 22 Nov 2022 06:03:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669125796; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UR8kD/9jk6i9BBdJZSKcAvF3HRxWCYSnjKDJt9nFEhM=; b=LDxHirSimWpjlqjvfMWM66h7BfQIKUE1WoKzseVsMcXyr6BlWm+Hvbx4p9BFa6WbCaErlJ WyC0EhdFrgUmibRCtuM7dTuQVpQWCZmQAsV4+T8QWjoBiB5nVwmzSD7dW4csa/iDaYXVg6 sCZsQsTC83dvP/PWcYUiR5g03ezAU+U= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-661-kP4iDNrlNKaPfpOSBUHTWA-1; Tue, 22 Nov 2022 09:03:12 -0500 X-MC-Unique: kP4iDNrlNKaPfpOSBUHTWA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id CD89038123AE; Tue, 22 Nov 2022 14:03:11 +0000 (UTC) Received: from RHTPC1VM0NT.redhat.com (unknown [10.22.16.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4E3EF40C6EC6; Tue, 22 Nov 2022 14:03:11 +0000 (UTC) From: Aaron Conole To: netdev@vger.kernel.org Cc: Pravin B Shelar , Jakub Kicinski , "David S. Miller" , Paolo Abeni , Eric Dumazet , Thomas Graf , dev@openvswitch.org, Eelco Chaudron , Ilya Maximets , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [RFC net-next 3/6] selftests: openvswitch: add flow dump support Date: Tue, 22 Nov 2022 09:03:04 -0500 Message-Id: <20221122140307.705112-4-aconole@redhat.com> In-Reply-To: <20221122140307.705112-1-aconole@redhat.com> References: <20221122140307.705112-1-aconole@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Add a basic set of fields to print in a 'dpflow' format. This will be used by future commits to check for flow fields after parsing, as well as verifying the flow fields pushed into the kernel from userspace. Signed-off-by: Aaron Conole --- .../selftests/net/openvswitch/ovs-dpctl.py | 781 +++++++++++++++++- 1 file changed, 780 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py index 338e9b2cd660..d654fe1fe4e6 100644 --- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py +++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py @@ -6,12 +6,16 @@ import argparse import errno +import ipaddress +import logging import sys +import time try: from pyroute2 import NDB from pyroute2.netlink import NLM_F_ACK + from pyroute2.netlink import NLM_F_DUMP from pyroute2.netlink import NLM_F_REQUEST from pyroute2.netlink import genlmsg from pyroute2.netlink import nla @@ -40,6 +44,11 @@ OVS_VPORT_CMD_DEL = 2 OVS_VPORT_CMD_GET = 3 OVS_VPORT_CMD_SET = 4 +OVS_FLOW_CMD_NEW = 1 +OVS_FLOW_CMD_DEL = 2 +OVS_FLOW_CMD_GET = 3 +OVS_FLOW_CMD_SET = 4 + class ovs_dp_msg(genlmsg): # include the OVS version @@ -302,6 +311,760 @@ class OvsVport(GenericNetlinkSocket): return reply +def macstr(mac): + outstr = ":".join(["%02X" % i for i in mac]) + return outstr + + +class OvsFlow(GenericNetlinkSocket): + class ovs_flow_msg(ovs_dp_msg): + nla_map = ( + ("OVS_FLOW_ATTR_UNSPEC", "none"), + ("OVS_FLOW_ATTR_KEY", "nested"), + ("OVS_FLOW_ATTR_ACTIONS", "nested"), + ("OVS_FLOW_ATTR_STATS", "flowstats"), + ("OVS_FLOW_ATTR_TCP_FLAGS", "uint8"), + ("OVS_FLOW_ATTR_USED", "uint64"), + ("OVS_FLOW_ATTR_CLEAR", "none"), + ("OVS_FLOW_ATTR_MASK", "nested"), + ("OVS_FLOW_ATTR_PROBE", "none"), + ("OVS_FLOW_ATTR_UFID", "array(uint32)"), + ("OVS_FLOW_ATTR_UFID_FLAGS", "uint32"), + ) + + class nestedacts(nla): + __slots__ = () + + nla_map = () + + class flowstats(nla): + fields = ( + ("packets", "=Q"), + ("bytes", "=Q"), + ) + + class nestedflow(nla): + nla_map = ( + ("OVS_KEY_ATTR_UNSPEC", "none"), + ("OVS_KEY_ATTR_ENCAP", "none"), + ("OVS_KEY_ATTR_PRIORITY", "uint32"), + ("OVS_KEY_ATTR_IN_PORT", "uint32"), + ("OVS_KEY_ATTR_ETHERNET", "ethaddr"), + ("OVS_KEY_ATTR_VLAN", "uint16"), + ("OVS_KEY_ATTR_ETHERTYPE", "be16"), + ("OVS_KEY_ATTR_IPV4", "ovs_key_ipv4"), + ("OVS_KEY_ATTR_IPV6", "ovs_key_ipv6"), + ("OVS_KEY_ATTR_TCP", "ovs_key_tcp"), + ("OVS_KEY_ATTR_UDP", "ovs_key_udp"), + ("OVS_KEY_ATTR_ICMP", "ovs_key_icmp"), + ("OVS_KEY_ATTR_ICMPV6", "ovs_key_icmpv6"), + ("OVS_KEY_ATTR_ARP", "ovs_key_arp"), + ("OVS_KEY_ATTR_ND", "ovs_key_nd"), + ("OVS_KEY_ATTR_SKB_MARK", "uint32"), + ("OVS_KEY_ATTR_TUNNEL", "none"), + ("OVS_KEY_ATTR_SCTP", "ovs_key_sctp"), + ("OVS_KEY_ATTR_TCP_FLAGS", "uint16"), + ("OVS_KEY_ATTR_DP_HASH", "uint32"), + ("OVS_KEY_ATTR_RECIRC_ID", "uint32"), + ("OVS_KEY_ATTR_MPLS", "array(ovs_key_mpls)"), + ("OVS_KEY_ATTR_CT_STATE", "uint32"), + ("OVS_KEY_ATTR_CT_ZONE", "uint16"), + ("OVS_KEY_ATTR_CT_MARK", "uint32"), + ("OVS_KEY_ATTR_CT_LABELS", "none"), + ("OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4", "ovs_key_ct_tuple_ipv4"), + ("OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6", "ovs_key_ct_tuple_ipv6"), + ("OVS_KEY_ATTR_NSH", "none"), + ("OVS_KEY_ATTR_PACKET_TYPE", "none"), + ("OVS_KEY_ATTR_ND_EXTENSIONS", "none"), + ("OVS_KEY_ATTR_TUNNEL_INFO", "none"), + ("OVS_KEY_ATTR_IPV6_EXTENSIONS", "none"), + ) + + class ovs_key_proto(nla): + fields = ( + ("src", "!H"), + ("dst", "!H"), + ) + + fields_map = ( + ("src", "src", "%d", int), + ("dst", "dst", "%d", int), + ) + + def __init__( + self, + protostr, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + self.proto_str = protostr + nla.__init__( + self, + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + def dpstr(self, masked=None, more=False): + outstr = self.proto_str + "(" + first = False + for f in self.fields_map: + if first: + outstr += "," + if masked is None: + outstr += "%s=" % f[0] + if isinstance(f[2], str): + outstr += f[2] % self[f[1]] + else: + outstr += f[2](self[f[1]]) + first = True + elif more or f[3](masked[f[1]]) != 0: + outstr += "%s=" % f[0] + if isinstance(f[2], str): + outstr += f[2] % self[f[1]] + else: + outstr += f[2](self[f[1]]) + outstr += "/" + if isinstance(f[2], str): + outstr += f[2] % masked[f[1]] + else: + outstr += f[2](masked[f[1]]) + first = True + outstr += ")" + return outstr + + class ethaddr(ovs_key_proto): + fields = ( + ("src", "!6s"), + ("dst", "!6s"), + ) + + fields_map = ( + ("src", "src", macstr, lambda x: int.from_bytes(x, "big")), + ("dst", "dst", macstr, lambda x: int.from_bytes(x, "big")), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "eth", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_ipv4(ovs_key_proto): + fields = ( + ("src", "!I"), + ("dst", "!I"), + ("proto", "B"), + ("tos", "B"), + ("ttl", "B"), + ("frag", "B"), + ) + + fields_map = ( + ( + "src", + "src", + lambda x: str(ipaddress.IPv4Address(x)), + int, + ), + ( + "dst", + "dst", + lambda x: str(ipaddress.IPv4Address(x)), + int, + ), + ("proto", "proto", "%d", int), + ("tos", "tos", "%d", int), + ("ttl", "ttl", "%d", int), + ("frag", "frag", "%d", int), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "ipv4", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_ipv6(ovs_key_proto): + fields = ( + ("src", "!16s"), + ("dst", "!16s"), + ("label", "!I"), + ("proto", "B"), + ("tclass", "B"), + ("hlimit", "B"), + ("frag", "B"), + ) + + fields_map = ( + ( + "src", + "src", + lambda x: str(ipaddress.IPv6Address(x)), + lambda x: int.from_bytes(x, "big"), + ), + ( + "dst", + "dst", + lambda x: str(ipaddress.IPv6Address(x)), + lambda x: int.from_bytes(x, "big"), + ), + ("label", "label", "%d", int), + ("proto", "proto", "%d", int), + ("tclass", "tclass", "%d", int), + ("hlimit", "hlimit", "%d", int), + ("frag", "frag", "%d", int), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "ipv6", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_tcp(ovs_key_proto): + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "tcp", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_udp(ovs_key_proto): + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "udp", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_sctp(ovs_key_proto): + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "sctp", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_icmp(ovs_key_proto): + fields = ( + ("type", "B"), + ("code", "B"), + ) + + fields_map = ( + ("type", "type", "%d", int), + ("code", "code", "%d", int), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "icmp", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_icmpv6(ovs_key_icmp): + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "icmpv6", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_arp(ovs_key_proto): + fields = ( + ("sip", "!I"), + ("tip", "!I"), + ("op", "!H"), + ("sha", "!6s"), + ("tha", "!6s"), + ("pad", "xx"), + ) + + fields_map = ( + ( + "sip", + "sip", + lambda x: str(ipaddress.IPv4Address(x)), + int, + ), + ( + "tip", + "tip", + lambda x: str(ipaddress.IPv4Address(x)), + int, + ), + ("op", "op", "%d", int), + ("sha", "sha", macstr, lambda x: int.from_bytes(x, "big")), + ("tha", "tha", macstr, lambda x: int.from_bytes(x, "big")), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "arp", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_nd(ovs_key_proto): + fields = ( + ("target", "!16s"), + ("sll", "!6s"), + ("tll", "!6s"), + ) + + fields_map = ( + ( + "target", + "target", + lambda x: str(ipaddress.IPv6Address(x)), + lambda x: int.from_bytes(x, "big"), + ), + ("sll", "sll", macstr, lambda x: int.from_bytes(x, "big")), + ("tll", "tll", macstr, lambda x: int.from_bytes(x, "big")), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "nd", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_ct_tuple_ipv4(ovs_key_proto): + fields = ( + ("src", "!I"), + ("dst", "!I"), + ("tp_src", "!H"), + ("tp_dst", "!H"), + ("proto", "B"), + ) + + fields_map = ( + ( + "src", + "src", + lambda x: str(ipaddress.IPv4Address(x)), + int, + ), + ( + "dst", + "dst", + lambda x: str(ipaddress.IPv6Address(x)), + int, + ), + ("tp_src", "tp_src", "%d", int), + ("tp_dst", "tp_dst", "%d", int), + ("proto", "proto", "%d", int), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "ct_tuple4", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_ct_tuple_ipv6(nla): + fields = ( + ("src", "!16s"), + ("dst", "!16s"), + ("tp_src", "!H"), + ("tp_dst", "!H"), + ("proto", "B"), + ) + + fields_map = ( + ( + "src", + "src", + lambda x: str(ipaddress.IPv6Address(x)), + lambda x: int.from_bytes(x, "big"), + ), + ( + "dst", + "dst", + lambda x: str(ipaddress.IPv6Address(x)), + lambda x: int.from_bytes(x, "big"), + ), + ("tp_src", "tp_src", "%d", int), + ("tp_dst", "tp_dst", "%d", int), + ("proto", "proto", "%d", int), + ) + + def __init__( + self, + data=None, + offset=None, + parent=None, + length=None, + init=None, + ): + OvsFlow.ovs_flow_msg.nestedflow.ovs_key_proto.__init__( + self, + "ct_tuple6", + data=data, + offset=offset, + parent=parent, + length=length, + init=init, + ) + + class ovs_key_mpls(nla): + fields = (("lse", ">I"),) + + def dpstr(self, mask=None, more=False): + print_str = "" + + for field in ( + ( + "OVS_KEY_ATTR_PRIORITY", + "skb_priority", + "%d", + lambda x: False, + True, + ), + ( + "OVS_KEY_ATTR_SKB_MARK", + "skb_mark", + "%d", + lambda x: False, + True, + ), + ( + "OVS_KEY_ATTR_RECIRC_ID", + "recirc_id", + "0x%08X", + lambda x: False, + True, + ), + ( + "OVS_KEY_ATTR_DP_HASH", + "dp_hash", + "0x%08X", + lambda x: False, + True, + ), + ( + "OVS_KEY_ATTR_CT_STATE", + "ct_state", + "0x%04x", + lambda x: False, + True, + ), + ( + "OVS_KEY_ATTR_CT_ZONE", + "ct_zone", + "0x%04x", + lambda x: False, + True, + ), + ( + "OVS_KEY_ATTR_CT_MARK", + "ct_mark", + "0x%08x", + lambda x: False, + True, + ), + ( + "OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4", + None, + None, + False, + False, + ), + ( + "OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6", + None, + None, + False, + False, + ), + ( + "OVS_KEY_ATTR_IN_PORT", + "in_port", + "%d", + lambda x: True, + True, + ), + ("OVS_KEY_ATTR_ETHERNET", None, None, False, False), + ( + "OVS_KEY_ATTR_ETHERTYPE", + "eth_type", + "0x%04x", + lambda x: int(x) == 0xFFFF, + True, + ), + ("OVS_KEY_ATTR_IPV4", None, None, False, False), + ("OVS_KEY_ATTR_IPV6", None, None, False, False), + ("OVS_KEY_ATTR_ARP", None, None, False, False), + ("OVS_KEY_ATTR_TCP", None, None, False, False), + ( + "OVS_KEY_ATTR_TCP_FLAGS", + "tcp_flags", + "0x%04x", + lambda x: False, + True, + ), + ("OVS_KEY_ATTR_UDP", None, None, False, False), + ("OVS_KEY_ATTR_SCTP", None, None, False, False), + ("OVS_KEY_ATTR_ICMP", None, None, False, False), + ("OVS_KEY_ATTR_ICMPV6", None, None, False, False), + ("OVS_KEY_ATTR_ND", None, None, False, False), + ): + v = self.get_attr(field[0]) + if v is not None: + m = None if mask is None else mask.get_attr(field[0]) + if field[4] is False: + print_str += v.dpstr(m, more) + print_str += "," + else: + if m is None or field[3](m): + print_str += field[1] + "(" + print_str += field[2] % v + print_str += ")," + elif more or m != 0: + print_str += field[1] + "(" + print_str += ( + (field[2] % v) + "/" + (field[2] % m) + ) + print_str += ")," + + return print_str + + def dpstr(self, more=False): + ufid = self.get_attr("OVS_FLOW_ATTR_UFID") + ufid_str = "" + if ufid is not None: + ufid_str = ( + "ufid:{:08x}-{:04x}-{:04x}-{:04x}-{:04x}{:08x}".format( + ufid[0], + ufid[1] >> 16, + ufid[1] & 0xFFFF, + ufid[2] >> 16, + ufid[2] & 0, + ufid[3], + ) + ) + + key_field = self.get_attr("OVS_FLOW_ATTR_KEY") + keymsg = None + if key_field is not None: + keymsg = OvsFlow.ovs_flow_msg.nestedflow(data=key_field) + keymsg.decode() + + mask_field = self.get_attr("OVS_FLOW_ATTR_MASK") + maskmsg = None + if mask_field is not None: + maskmsg = OvsFlow.ovs_flow_msg.nestedflow(data=mask_field) + maskmsg.decode() + + acts_field = self.get_attr("OVS_FLOW_ATTR_ACTIONS") + actsmsg = None + if acts_field is not None: + actsmsg = OvsFlow.ovs_flow_msg.nestedacts(data=acts_field) + actsmsg.decode() + + print_str = "" + + if more: + print_str += ufid_str + "," + + if keymsg is not None: + print_str += keymsg.dpstr(maskmsg, more) + + stats = self.get_attr("OVS_FLOW_ATTR_STATS") + if stats is None: + print_str += " packets:0, bytes:0," + else: + print_str += " packets:%d, bytes:%d," % ( + stats["packets"], + stats["bytes"], + ) + + used = self.get_attr("OVS_FLOW_ATTR_USED") + print_str += " used:" + if used is None: + print_str += "never," + else: + used_time = int(used) + cur_time_sec = time.clock_gettime(time.CLOCK_MONOTONIC) + used_time = (cur_time_sec * 1000 * 1000) - used_time + print_str += "{}s,".format(used_time / 1000) + + print_str += " actions:" + if actsmsg is None or "attrs" not in actsmsg: + print_str += "drop" + + return print_str + + def __init__(self): + GenericNetlinkSocket.__init__(self) + self.bind(OVS_FLOW_FAMILY, OvsFlow.ovs_flow_msg) + + def dump(self, dpifindex, flowspec=None): + """ + Returns a list of messages containing flows. + + dpifindex should be a valid datapath obtained by calling + into the OvsDatapath lookup + + flowpsec is a string which represents a flow in the dpctl + format. + """ + msg = OvsFlow.ovs_flow_msg() + + msg["cmd"] = OVS_FLOW_CMD_GET + msg["version"] = OVS_DATAPATH_VERSION + msg["reserved"] = 0 + msg["dpifindex"] = dpifindex + + msg_flags = NLM_F_REQUEST | NLM_F_ACK + if flowspec is None: + msg_flags |= NLM_F_DUMP + rep = None + + try: + rep = self.nlm_request( + msg, + msg_type=self.prid, + msg_flags=msg_flags, + ) + except NetlinkError as ne: + raise ne + return rep + + def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB(), vpl=OvsVport()): dp_name = dp_lookup_rep.get_attr("OVS_DP_ATTR_NAME") base_stats = dp_lookup_rep.get_attr("OVS_DP_ATTR_STATS") @@ -348,6 +1111,7 @@ def main(argv): "--verbose", action="count", help="Increment 'verbose' output counter.", + default=0, ) subparsers = parser.add_subparsers() @@ -389,10 +1153,18 @@ def main(argv): delifcmd.add_argument("dpname", help="Datapath Name") delifcmd.add_argument("delif", help="Interface name for adding") + dumpflcmd = subparsers.add_parser("dump-flows") + dumpflcmd.add_argument("dumpdp", help="Datapath Name") + args = parser.parse_args() + if args.verbose > 0: + if args.verbose > 1: + logging.basicConfig(level=logging.DEBUG) + ovsdp = OvsDatapath() ovsvp = OvsVport() + ovsflow = OvsFlow() ndb = NDB() if hasattr(args, "showdp"): @@ -445,7 +1217,14 @@ def main(argv): else: msg += " failed to remove." print(msg) - + elif hasattr(args, "dumpdp"): + rep = ovsdp.info(args.dumpdp, 0) + if rep is None: + print("DP '%s' not found." % args.dumpdp) + return 1 + rep = ovsflow.dump(rep["dpifindex"]) + for flow in rep: + print(flow.dpstr(True if args.verbose > 0 else False)) return 0 From patchwork Tue Nov 22 14:03:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Conole X-Patchwork-Id: 13052403 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63E69C43217 for ; Tue, 22 Nov 2022 14:06:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233715AbiKVOGm (ORCPT ); Tue, 22 Nov 2022 09:06:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233081AbiKVOGG (ORCPT ); Tue, 22 Nov 2022 09:06:06 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 47B0820F5E for ; Tue, 22 Nov 2022 06:03:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669125801; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FiZt6CO0d2Q/fNRLdOiB+spVHV87735/SJe/WQ/NZzg=; b=XW/UOn0+hG7VIE1Cg3AxvBMtkQzTXOl8vdr6Ouw04djBnnOTno2YUgjKCZHMrVhYGKBtMO Vw4fMxxTWtbSswMbHWRYGqwrIHXrCR10B2iPlLgG6NkXyV5u1OONsQ2GLOZPa4S9Kzqmtm lRTuhgyAKgHOZoLNc5JG5gBqmWk/vQY= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-609-KbIRkdF1M_2eJfwfZ3i_ZA-1; Tue, 22 Nov 2022 09:03:14 -0500 X-MC-Unique: KbIRkdF1M_2eJfwfZ3i_ZA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 73174801585; Tue, 22 Nov 2022 14:03:13 +0000 (UTC) Received: from RHTPC1VM0NT.redhat.com (unknown [10.22.16.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id DE54040C6EC6; Tue, 22 Nov 2022 14:03:11 +0000 (UTC) From: Aaron Conole To: netdev@vger.kernel.org Cc: Pravin B Shelar , Jakub Kicinski , "David S. Miller" , Paolo Abeni , Eric Dumazet , Thomas Graf , dev@openvswitch.org, Eelco Chaudron , Ilya Maximets , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [RFC net-next 4/6] selftests: openvswitch: adjust datapath NL message Date: Tue, 22 Nov 2022 09:03:05 -0500 Message-Id: <20221122140307.705112-5-aconole@redhat.com> In-Reply-To: <20221122140307.705112-1-aconole@redhat.com> References: <20221122140307.705112-1-aconole@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The netlink message for creating a new datapath takes an array of ports for the PID creation. This shouldn't cause much issue but correct it for future messages where we need to do decode of datapath information that could include the per-cpu PID map Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite") Signed-off-by: Aaron Conole --- tools/testing/selftests/net/openvswitch/ovs-dpctl.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py index d654fe1fe4e6..fe14da358901 100644 --- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py +++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py @@ -71,7 +71,7 @@ class OvsDatapath(GenericNetlinkSocket): nla_map = ( ("OVS_DP_ATTR_UNSPEC", "none"), ("OVS_DP_ATTR_NAME", "asciiz"), - ("OVS_DP_ATTR_UPCALL_PID", "uint32"), + ("OVS_DP_ATTR_UPCALL_PID", "array(uint32)"), ("OVS_DP_ATTR_STATS", "dpstats"), ("OVS_DP_ATTR_MEGAFLOW_STATS", "megaflowstats"), ("OVS_DP_ATTR_USER_FEATURES", "uint32"), @@ -141,7 +141,7 @@ class OvsDatapath(GenericNetlinkSocket): msg["attrs"].append(["OVS_DP_ATTR_USER_FEATURES", dpfeatures]) if not shouldUpcall: - msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", 0]) + msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", [0]]) try: reply = self.nlm_request( From patchwork Tue Nov 22 14:03:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Conole X-Patchwork-Id: 13052401 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6A9BC433FE for ; Tue, 22 Nov 2022 14:05:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234067AbiKVOFb (ORCPT ); Tue, 22 Nov 2022 09:05:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234017AbiKVOFM (ORCPT ); Tue, 22 Nov 2022 09:05:12 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 889A8205E0 for ; Tue, 22 Nov 2022 06:03:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669125797; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=D+4flvqengNNBgDwPRdu4ptsudDd6Mu7MlqZ94ZwyBM=; b=aMplp5Vw5KgpnGu0lPDvMobtpbjmcY2JlfeK1XtAICBdehtUQvTW69/uJUWp+zwyshitg0 La9jWIp1bGOlLVBGmIm/wwj7zNKnzMKVgmNS0KlHa4CV290ESD4KYvVRdpyCeUH6OJ4wxd aftZr5XQTGjEbRjgNnrGzZIIBMaa7lQ= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-119-Yl-nshPSMeqNYM-1s8XnDg-1; Tue, 22 Nov 2022 09:03:16 -0500 X-MC-Unique: Yl-nshPSMeqNYM-1s8XnDg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7E67C3C0F231; Tue, 22 Nov 2022 14:03:15 +0000 (UTC) Received: from RHTPC1VM0NT.redhat.com (unknown [10.22.16.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id 83EB740C6EC6; Tue, 22 Nov 2022 14:03:13 +0000 (UTC) From: Aaron Conole To: netdev@vger.kernel.org Cc: Pravin B Shelar , Jakub Kicinski , "David S. Miller" , Paolo Abeni , Eric Dumazet , Thomas Graf , dev@openvswitch.org, Eelco Chaudron , Ilya Maximets , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [RFC net-next 5/6] selftests: openvswitch: add upcall support Date: Tue, 22 Nov 2022 09:03:06 -0500 Message-Id: <20221122140307.705112-6-aconole@redhat.com> In-Reply-To: <20221122140307.705112-1-aconole@redhat.com> References: <20221122140307.705112-1-aconole@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Future tests can make use of CMD_MISS events to do things like cross validated packet contents with the flow key that was generated by flow key extraction. This will also be used in an upcoming commit to allow removing the flow key from upcall messages. Signed-off-by: Aaron Conole --- .../selftests/net/openvswitch/ovs-dpctl.py | 140 +++++++++++++++++- 1 file changed, 133 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py index fe14da358901..94204af48d28 100644 --- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py +++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py @@ -8,6 +8,8 @@ import argparse import errno import ipaddress import logging +import multiprocessing +import struct import sys import time @@ -58,6 +60,53 @@ class ovs_dp_msg(genlmsg): fields = genlmsg.fields + (("dpifindex", "I"),) +class OvsPacket(GenericNetlinkSocket): + OVS_PACKET_CMD_MISS = 1 # Flow table miss + OVS_PACKET_CMD_ACTION = 2 # USERSPACE action + OVS_PACKET_CMD_EXECUTE = 3 # Apply actions to packet + + class ovs_packet_msg(ovs_dp_msg): + nla_map = ( + ('OVS_PACKET_ATTR_UNSPEC', 'none'), + ('OVS_PACKET_ATTR_PACKET', 'array(uint8)'), + ('OVS_PACKET_ATTR_KEY', 'nested'), + ('OVS_PACKET_ATTR_ACTIONS', 'nested'), + ('OVS_PACKET_ATTR_USERDATA', 'nested'), + ('OVS_PACKET_ATTR_EGRESS_TUN_KEY', 'nested'), + ('OVS_PACKET_ATTR_UNUSED1', 'none'), + ('OVS_PACKET_ATTR_UNUSED2', 'none'), + ('OVS_PACKET_ATTR_PROBE', 'none'), + ('OVS_PACKET_ATTR_MRU', 'uint16'), + ('OVS_PACKET_ATTR_LEN', 'uint32'), + ('OVS_PACKET_ATTR_HASH', 'uint64'), + ) + + def __init__(self): + GenericNetlinkSocket.__init__(self) + print("Binding to packet family") + self.bind(OVS_PACKET_FAMILY, OvsPacket.ovs_packet_msg) + print("Port", self.epid) + + def upcall_handler(self, up=None): + print("listening on upcall packet handler:", self.epid) + while True: + try: + msgs = self.get() + for msg in msgs: + if not up: + continue + if msg["cmd"] == OvsPacket.OVS_PACKET_CMD_MISS: + up.miss(msg) + elif msg["cmd"] == OvsPacket.OVS_PACKET_CMD_ACTION: + up.action(msg) + elif msg["cmd"] == OvsPacket.OVS_PACKET_CMD_EXECUTE: + up.execute(msg) + else: + print("Unkonwn cmd: %d" % msg["cmd"]) + except NetlinkError as ne: + raise ne + + class OvsDatapath(GenericNetlinkSocket): OVS_DP_F_VPORT_PIDS = 1 << 1 @@ -122,7 +171,7 @@ class OvsDatapath(GenericNetlinkSocket): return reply - def create(self, dpname, shouldUpcall=False, versionStr=None): + def create(self, dpname, shouldUpcall=False, versionStr=None, p=OvsPacket()): msg = OvsDatapath.dp_cmd_msg() msg["cmd"] = OVS_DP_CMD_NEW if versionStr is None: @@ -139,9 +188,19 @@ class OvsDatapath(GenericNetlinkSocket): else: dpfeatures = OvsDatapath.OVS_DP_F_VPORT_PIDS - msg["attrs"].append(["OVS_DP_ATTR_USER_FEATURES", dpfeatures]) if not shouldUpcall: msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", [0]]) + else: + if versionStr is None or versionStr.find(":") == -1: + dpfeatures |= OvsDatapath.OVS_DP_F_DISPATCH_UPCALL_PER_CPU + dpfeatures &= ~OvsDatapath.OVS_DP_F_VPORT_PIDS + + nproc = multiprocessing.cpu_count() + procarray = [] + for i in range(1, nproc): + procarray += [int(p.epid)] + msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", procarray]) + msg["attrs"].append(["OVS_DP_ATTR_USER_FEATURES", dpfeatures]) try: reply = self.nlm_request( @@ -238,9 +297,10 @@ class OvsVport(GenericNetlinkSocket): return OvsVport.OVS_VPORT_TYPE_GENEVE raise ValueError("Unknown vport type: '%s'" % vport_type) - def __init__(self): + def __init__(self, packet=OvsPacket()): GenericNetlinkSocket.__init__(self) self.bind(OVS_VPORT_FAMILY, OvsVport.ovs_vport_msg) + self.upcall_packet = packet def info(self, vport_name, dpifindex=0, portno=None): msg = OvsVport.ovs_vport_msg() @@ -278,7 +338,36 @@ class OvsVport(GenericNetlinkSocket): msg["attrs"].append(["OVS_VPORT_ATTR_TYPE", port_type]) msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname]) - msg["attrs"].append(["OVS_VPORT_ATTR_UPCALL_PID", [self.pid]]) + msg["attrs"].append(["OVS_VPORT_ATTR_UPCALL_PID", + [self.upcall_packet.epid]]) + + try: + reply = self.nlm_request( + msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK + ) + reply = reply[0] + except NetlinkError as ne: + if ne.code == errno.EEXIST: + reply = None + else: + raise ne + return reply + + def reset_upcall(self, dpindex, vport_ifname, p=None): + msg = OvsVport.ovs_vport_msg() + + msg["cmd"] = OVS_VPORT_CMD_SET + msg["version"] = OVS_DATAPATH_VERSION + msg["reserved"] = 0 + msg["dpifindex"] = dpindex + msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname]) + + if p == None: + p = self.upcall_packet + else: + self.upcall_packet = p + + msg["attrs"].append(["OVS_VPORT_ATTR_UPCALL_PID", [p.epid]]) try: reply = self.nlm_request( @@ -310,6 +399,9 @@ class OvsVport(GenericNetlinkSocket): raise ne return reply + def upcall_handler(self, handler=None): + self.upcall_packet.upcall_handler(handler) + def macstr(mac): outstr = ":".join(["%02X" % i for i in mac]) @@ -1064,6 +1156,26 @@ class OvsFlow(GenericNetlinkSocket): raise ne return rep + def miss(self, packetmsg): + seq = packetmsg["header"]["sequence_number"] + keystr = "(none)" + key_field = packetmsg.get_attr("OVS_PACKET_ATTR_KEY") + if key_field is not None: + keymsg = OvsFlow.ovs_flow_msg.nestedflow(data=key_field) + keymsg.decode() + keystr = keymsg.dpstr(None, True) + + pktdata = packetmsg.get_attr("OVS_PACKET_ATTR_PACKET") + pktpres = "yes" if pktdata is not None else "no" + + print("MISS upcall[%d/%s]: %s" % (seq, pktpres, keystr), flush = True) + + def execute(self, packetmsg): + print("userspace execute command") + + def action(self, packetmsg): + print("userspace action command") + def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB(), vpl=OvsVport()): dp_name = dp_lookup_rep.get_attr("OVS_DP_ATTR_NAME") @@ -1141,6 +1253,12 @@ def main(argv): addifcmd = subparsers.add_parser("add-if") addifcmd.add_argument("dpname", help="Datapath Name") addifcmd.add_argument("addif", help="Interface name for adding") + addifcmd.add_argument( + "-u", + "--upcall", + action="store_true", + help="Leave open a reader for upcalls", + ) addifcmd.add_argument( "-t", "--ptype", @@ -1162,8 +1280,9 @@ def main(argv): if args.verbose > 1: logging.basicConfig(level=logging.DEBUG) + ovspk = OvsPacket() ovsdp = OvsDatapath() - ovsvp = OvsVport() + ovsvp = OvsVport(ovspk) ovsflow = OvsFlow() ndb = NDB() @@ -1186,11 +1305,13 @@ def main(argv): msg += ":'%s'" % args.showdp print(msg) elif hasattr(args, "adddp"): - rep = ovsdp.create(args.adddp, args.upcall, args.versioning) + rep = ovsdp.create(args.adddp, args.upcall, args.versioning, ovspk) if rep is None: print("DP '%s' already exists" % args.adddp) else: print("DP '%s' added" % args.adddp) + if args.upcall: + ovspk.upcall_handler(ovsflow) elif hasattr(args, "deldp"): ovsdp.destroy(args.deldp) elif hasattr(args, "addif"): @@ -1198,13 +1319,18 @@ def main(argv): if rep is None: print("DP '%s' not found." % args.dpname) return 1 - rep = ovsvp.attach(rep["dpifindex"], args.addif, args.ptype) + dpindex = rep["dpifindex"] + rep = ovsvp.attach(dpindex, args.addif, args.ptype) msg = "vport '%s'" % args.addif if rep and rep["error"] == 0: msg += " added." else: msg += " failed to add." print(msg) + if args.upcall: + if rep is None: + rep = ovsvp.reset_upcall(dpindex, args.addif, ovspk) + ovsvp.upcall_handler(ovsflow) elif hasattr(args, "delif"): rep = ovsdp.info(args.dpname, 0) if rep is None: From patchwork Tue Nov 22 14:03:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaron Conole X-Patchwork-Id: 13052400 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F0B8C4332F for ; Tue, 22 Nov 2022 14:05:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233992AbiKVOF1 (ORCPT ); Tue, 22 Nov 2022 09:05:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55786 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234014AbiKVOFM (ORCPT ); Tue, 22 Nov 2022 09:05:12 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6191620BFF for ; Tue, 22 Nov 2022 06:03:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669125799; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rYhRWhA1aSMDmEn1uPY3m1Uoc/nxJhjisw6iqoh6KAk=; b=L8Ykf4brRPMonsGs8Oeom3vT1zEGZg/HHZ6kNGE8Kgd4n2jY/POKZ31s+4DETNlv9sjEof CDjQb1AmMiRcIh1SAEKpsPWcHtwgLjgFC/dS5FOxPxC1TrLpWos2LuBwUCcElmgAVdc/3Y UecNpJnADkeickbXstDlqb4x+/veF9o= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-654-4mjhlybcObqbcyDAl7QVdg-1; Tue, 22 Nov 2022 09:03:16 -0500 X-MC-Unique: 4mjhlybcObqbcyDAl7QVdg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 12028973283; Tue, 22 Nov 2022 14:03:16 +0000 (UTC) Received: from RHTPC1VM0NT.redhat.com (unknown [10.22.16.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9132A40C6EC6; Tue, 22 Nov 2022 14:03:15 +0000 (UTC) From: Aaron Conole To: netdev@vger.kernel.org Cc: Pravin B Shelar , Jakub Kicinski , "David S. Miller" , Paolo Abeni , Eric Dumazet , Thomas Graf , dev@openvswitch.org, Eelco Chaudron , Ilya Maximets , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [RFC net-next 6/6] selftests: openvswitch: add exclude support for packet commands Date: Tue, 22 Nov 2022 09:03:07 -0500 Message-Id: <20221122140307.705112-7-aconole@redhat.com> In-Reply-To: <20221122140307.705112-1-aconole@redhat.com> References: <20221122140307.705112-1-aconole@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Introduce a test case to show that we can exclude flows based on specific configurations. Signed-off-by: Aaron Conole --- .../selftests/net/openvswitch/openvswitch.sh | 53 +++++++++++++++++-- .../selftests/net/openvswitch/ovs-dpctl.py | 34 +++++++++++- 2 files changed, 81 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh index ce14913150fe..f04f2f748332 100755 --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh @@ -11,7 +11,8 @@ VERBOSE=0 TRACING=0 tests=" - netlink_checks ovsnl: validate netlink attrs and settings" + netlink_checks ovsnl: validate netlink attrs and settings + upcall_interfaces ovs: test the upcall interfaces" info() { [ $VERBOSE = 0 ] || echo $* @@ -72,7 +73,15 @@ ovs_add_dp () { ovs_add_if () { info "Adding IF to DP: br:$2 if:$3" - ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if "$2" "$3" || return 1 + if [ "$4" != "-u" ]; then + ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if "$2" "$3" \ + || return 1 + else + python3 $ovs_base/ovs-dpctl.py add-if \ + -u "$2" "$3" >$ovs_dir/$3.out 2>$ovs_dir/$3.err & + pid=$! + on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null" + fi } ovs_del_if () { @@ -103,10 +112,16 @@ ovs_add_netns_and_veths () { ovs_sbx "$1" ip netns exec "$3" ip link set "$5" up || return 1 if [ "$6" != "" ]; then - ovs_sbx "$1" ip netns exec "$4" ip addr add "$6" dev "$5" \ + ovs_sbx "$1" ip netns exec "$3" ip addr add "$6" dev "$5" \ || return 1 fi - ovs_add_if "$1" "$2" "$4" || return 1 + + if [ "$7" != "-u" ]; then + ovs_add_if "$1" "$2" "$4" || return 1 + else + ovs_add_if "$1" "$2" "$4" -u || return 1 + fi + [ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$3" \ tcpdump -i any -s 65535 >> ${ovs_dir}/tcpdump_"$3".log @@ -158,6 +173,36 @@ test_netlink_checks () { return 0 } +test_upcall_interfaces() { + sbx_add "test_upcall_interfaces" || return 1 + + info "setting up new DP" + ovs_add_dp "test_upcall_interfaces" ui0 || return 1 + + ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \ + 172.31.110.1/24 -u || return 1 + + sleep 1 + info "sending arping" + ip netns exec upc arping -I l0 172.31.110.20 -c 1 \ + >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr + + grep -E "MISS upcall\[0/yes\]: .*arp\(sip=172.31.110.1,tip=172.31.110.20,op=1,sha=" $ovs_dir/left0.out >/dev/null 2>&1 || return 1 + # now tear down the DP and set it up with the new options + ovs_sbx "test_upcall_interfaces" python3 $ovs_base/ovs-dpctl.py \ + del-dp ui0 || return 1 + ovs_sbx "test_upcall_interfaces" python3 $ovs_base/ovs-dpctl.py \ + add-dp -e miss -- ui0 || return 1 + ovs_add_if "test_upcall_interfaces" ui0 left0 -u || return 1 + + sleep 1 + info "sending second arping" + ip netns exec upc arping -I l0 172.31.110.20 -c 1 \ + >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr + grep -E "MISS upcall\[0/yes\]: \(none\)" $ovs_dir/left0.out >/dev/null 2>&1 || return 1 + return 0 +} + run_test() { ( tname="$1" diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py index 94204af48d28..ba115fb51773 100644 --- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py +++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py @@ -111,6 +111,7 @@ class OvsDatapath(GenericNetlinkSocket): OVS_DP_F_VPORT_PIDS = 1 << 1 OVS_DP_F_DISPATCH_UPCALL_PER_CPU = 1 << 3 + OVS_DP_F_EXCLUDE_UPCALL_FLOW_KEY = 1 << 4 class dp_cmd_msg(ovs_dp_msg): """ @@ -127,6 +128,8 @@ class OvsDatapath(GenericNetlinkSocket): ("OVS_DP_ATTR_PAD", "none"), ("OVS_DP_ATTR_MASKS_CACHE_SIZE", "uint32"), ("OVS_DP_ATTR_PER_CPU_PIDS", "array(uint32)"), + ("OVS_DP_ATTR_IFINDEX", "uint32"), + ("OVS_DP_ATTR_EXCLUDE_CMDS", "uint32"), ) class dpstats(nla): @@ -171,7 +174,8 @@ class OvsDatapath(GenericNetlinkSocket): return reply - def create(self, dpname, shouldUpcall=False, versionStr=None, p=OvsPacket()): + def create(self, dpname, shouldUpcall=False, versionStr=None, p=OvsPacket(), + exclude=[]): msg = OvsDatapath.dp_cmd_msg() msg["cmd"] = OVS_DP_CMD_NEW if versionStr is None: @@ -200,6 +204,23 @@ class OvsDatapath(GenericNetlinkSocket): for i in range(1, nproc): procarray += [int(p.epid)] msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", procarray]) + + excluded = 0 + print("exclude", exclude) + if len(exclude) > 0: + for ex in exclude: + if ex == "miss": + excluded |= 1 << OvsPacket.OVS_PACKET_CMD_MISS + elif ex == "action": + excluded |= 1 << OvsPacket.OVS_PACKET_CMD_ACTION + elif ex == "execute": + excluded |= 1 << OvsPacket.OVS_PACKET_CMD_EXECUTE + else: + print("DP CREATE: Unknown type: '%s'" % ex) + msg["attrs"].append(["OVS_DP_ATTR_EXCLUDE_CMDS", excluded]) + if versionStr is None or versionStr.find(":") == -1: + dpfeatures |= OvsDatapath.OVS_DP_F_EXCLUDE_UPCALL_FLOW_KEY + msg["attrs"].append(["OVS_DP_ATTR_USER_FEATURES", dpfeatures]) try: @@ -1240,6 +1261,14 @@ def main(argv): action="store_true", help="Leave open a reader for upcalls", ) + adddpcmd.add_argument( + "-e", + "--exclude", + type=str, + default=[], + nargs="+", + help="Exclude flow key from upcall packet commands" + ) adddpcmd.add_argument( "-V", "--versioning", @@ -1305,7 +1334,8 @@ def main(argv): msg += ":'%s'" % args.showdp print(msg) elif hasattr(args, "adddp"): - rep = ovsdp.create(args.adddp, args.upcall, args.versioning, ovspk) + rep = ovsdp.create(args.adddp, args.upcall, args.versioning, ovspk, + args.exclude) if rep is None: print("DP '%s' already exists" % args.adddp) else: