It will be used later by VRRP service. Signed-off-by: Isaku Yamahata <yamah...@valinux.co.jp> --- ryu/services/vrrp/utils.py | 76 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 ryu/services/vrrp/utils.py
diff --git a/ryu/services/vrrp/utils.py b/ryu/services/vrrp/utils.py new file mode 100644 index 0000000..8cb8fa1 --- /dev/null +++ b/ryu/services/vrrp/utils.py @@ -0,0 +1,76 @@ +# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation. +# Copyright (C) 2013 Isaku Yamahata <yamahata at private email ne jp> +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +# implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from ryu.lib.packet import ethernet +from ryu.lib.packet import vlan +from ryu.ofproto import ether +from ryu.topology import api as topo_api + + +def may_add_vlan(packet, vlan_id): + """ + :type packet: ryu.lib.packet.packet.Packet + :param packet: + :type vlan_id: int (0 <= vlan_id <= 4095) or None (= No VLAN) + :param vlan_id: + """ + if vlan_id is None: + return + + e = packet.protocols[0] + assert isinstance(e, ethernet.ethernet) + v = vlan.vlan(0, 0, vlan_id, e.ethertype) + e.ethertype = ether.ETH_TYPE_8021Q + packet.add_protocol(v) + + +def get_dp(app, dpid): + """ + :type dpid: datapath id + :param dpid: + :rtype: ryu.controller.controller.Datapatyh + :returns: datapath corresponding to dpid + """ + switches = topo_api.get_switch(app, dpid) + if not switches: + return None + assert len(switches) == 1 + return switches[0].dp + + +def dp_packet_out(dp, port_no, data): + # OF 1.2 + ofproto = dp.ofproto + ofproto_parser = dp.ofproto_parser + actions = [ofproto_parser.OFPActionOutput(port_no, + ofproto.OFPCML_NO_BUFFER)] + packet_out = ofproto_parser.OFPPacketOut( + dp, 0xffffffff, ofproto.OFPP_CONTROLLER, actions, data) + dp.send_msg(packet_out) + + +def dp_flow_mod(dp, table, command, priority, match, instructions, + out_port=None): + # OF 1.2 + ofproto = dp.ofproto + ofproto_parser = dp.ofproto_parser + if out_port is None: + out_port = ofproto.OFPP_ANY + flow_mod = ofproto_parser.OFPFlowMod( + dp, 0, 0, table, command, 0, 0, + priority, 0xffffffff, out_port, ofproto.OFPG_ANY, + ofproto.OFPFF_CHECK_OVERLAP, match, instructions) + dp.send_msg(flow_mod) -- 1.7.10.4 ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Ryu-devel mailing list Ryu-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ryu-devel
