/* Copyright (c) 2008, 2011, 2012, 2013, 2014 The Board of Trustees of The Leland Stanford * Junior University * * We are making the OpenFlow specification and associated documentation * (Software) available for public use and benefit with the expectation * that others will use, modify and enhance the Software and contribute * those enhancements back to the community. However, since we would * like to make the Software available for broadest use, with as few * restrictions as possible permission is hereby granted, free of * charge, to any person obtaining a copy of this Software to deal in * the Software under the copyrights without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * The name and trademarks of copyright holder(s) may NOT be used in * advertising or publicity pertaining to the Software or any * derivatives without specific, written prior permission. */ /* * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc. * Copyright (c) 2012 Horms Solutions Ltd. * * 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. */ /* OpenFlow: protocol between controller and datapath. */ #ifndef OPENFLOW_12_H #define OPENFLOW_12_H 1 #include /* Error type for experimenter error messages. */ #define OFPET12_EXPERIMENTER 0xffff /* The VLAN id is 12-bits, so we can use the entire 16 bits to indicate * special conditions. */ enum ofp12_vlan_id { OFPVID12_PRESENT = 0x1000, /* Bit that indicate that a VLAN id is set */ OFPVID12_NONE = 0x0000, /* No VLAN id was set. */ }; /* Bit definitions for IPv6 Extension Header pseudo-field. */ enum ofp12_ipv6exthdr_flags { OFPIEH12_NONEXT = 1 << 0, /* "No next header" encountered. */ OFPIEH12_ESP = 1 << 1, /* Encrypted Sec Payload header present. */ OFPIEH12_AUTH = 1 << 2, /* Authentication header present. */ OFPIEH12_DEST = 1 << 3, /* 1 or 2 dest headers present. */ OFPIEH12_FRAG = 1 << 4, /* Fragment header present. */ OFPIEH12_ROUTER = 1 << 5, /* Router header present. */ OFPIEH12_HOP = 1 << 6, /* Hop-by-hop header present. */ OFPIEH12_UNREP = 1 << 7, /* Unexpected repeats encountered. */ OFPIEH12_UNSEQ = 1 << 8 /* Unexpected sequencing encountered. */ }; /* Header for OXM experimenter match fields. */ struct ofp12_oxm_experimenter_header { ovs_be32 oxm_header; /* oxm_class = OFPXMC_EXPERIMENTER */ ovs_be32 experimenter; /* Experimenter ID which takes the same form as in struct ofp11_experimenter_header. */ }; OFP_ASSERT(sizeof(struct ofp12_oxm_experimenter_header) == 8); enum ofp12_controller_max_len { OFPCML12_MAX = 0xffe5, /* maximum max_len value which can be used * to request a specific byte length. */ OFPCML12_NO_BUFFER = 0xffff /* indicates that no buffering should be * applied and the whole packet is to be * sent to the controller. */ }; /* OpenFlow 1.2 specific flags * (struct ofp12_flow_mod, member flags). */ enum ofp12_flow_mod_flags { OFPFF12_RESET_COUNTS = 1 << 2 /* Reset flow packet and byte counts. */ }; /* OpenFlow 1.2 specific capabilities * (struct ofp_switch_features, member capabilities). */ enum ofp12_capabilities { OFPC12_PORT_BLOCKED = 1 << 8 /* Switch will block looping ports. */ }; /* Full description for a queue. */ struct ofp12_packet_queue { ovs_be32 queue_id; /* id for the specific queue. */ ovs_be32 port; /* Port this queue is attached to. */ ovs_be16 len; /* Length in bytes of this queue desc. */ uint8_t pad[6]; /* 64-bit alignment. */ /* Followed by any number of queue properties expressed using * ofp_queue_prop_header, to fill out a total of 'len' bytes. */ }; OFP_ASSERT(sizeof(struct ofp12_packet_queue) == 16); /* Body of reply to OFPST_TABLE request. */ struct ofp12_table_stats { uint8_t table_id; /* Identifier of table. Lower numbered tables are consulted first. */ uint8_t pad[7]; /* Align to 64-bits. */ char name[OFP_MAX_TABLE_NAME_LEN]; ovs_be64 match; /* Bitmap of (1 << OFPXMT_*) that indicate the fields the table can match on. */ ovs_be64 wildcards; /* Bitmap of (1 << OFPXMT_*) wildcards that are supported by the table. */ ovs_be32 write_actions; /* Bitmap of OFPAT_* that are supported by the table with OFPIT_WRITE_ACTIONS. */ ovs_be32 apply_actions; /* Bitmap of OFPAT_* that are supported by the table with OFPIT_APPLY_ACTIONS. */ ovs_be64 write_setfields;/* Bitmap of (1 << OFPXMT_*) header fields that can be set with OFPIT_WRITE_ACTIONS. */ ovs_be64 apply_setfields;/* Bitmap of (1 << OFPXMT_*) header fields that can be set with OFPIT_APPLY_ACTIONS. */ ovs_be64 metadata_match; /* Bits of metadata table can match. */ ovs_be64 metadata_write; /* Bits of metadata table can write. */ ovs_be32 instructions; /* Bitmap of OFPIT_* values supported. */ ovs_be32 config; /* Bitmap of OFPTC_* values */ ovs_be32 max_entries; /* Max number of entries supported. */ ovs_be32 active_count; /* Number of active entries. */ ovs_be64 lookup_count; /* Number of packets looked up in table. */ ovs_be64 matched_count; /* Number of packets that hit table. */ }; OFP_ASSERT(sizeof(struct ofp12_table_stats) == 128); /* Number of types of groups supported by ofp12_group_features_stats. */ #define OFPGT12_N_TYPES 4 /* Body of reply to OFPST12_GROUP_FEATURES request. Group features. */ struct ofp12_group_features_stats { ovs_be32 types; /* Bitmap of OFPGT11_* values supported. */ ovs_be32 capabilities; /* Bitmap of OFPGFC12_* capability supported. */ /* Each element in the following arrays corresponds to the group type with * the same number, e.g. max_groups[0] is the maximum number of OFPGT11_ALL * groups, actions[2] is the actions supported by OFPGT11_INDIRECT * groups. */ ovs_be32 max_groups[OFPGT12_N_TYPES]; /* Max number of groups. */ ovs_be32 actions[OFPGT12_N_TYPES]; /* Bitmaps of supported OFPAT_*. */ }; OFP_ASSERT(sizeof(struct ofp12_group_features_stats) == 40); /* Group configuration flags */ enum ofp12_group_capabilities { OFPGFC12_SELECT_WEIGHT = 1 << 0, /* Support weight for select groups */ OFPGFC12_SELECT_LIVENESS = 1 << 1, /* Support liveness for select groups */ OFPGFC12_CHAINING = 1 << 2, /* Support chaining groups */ OFPGFC12_CHAINING_CHECKS = 1 << 3, /* Check chaining for loops and delete */ }; /* Role request and reply message. */ struct ofp12_role_request { ovs_be32 role; /* One of OFPCR12_ROLE_*. */ uint8_t pad[4]; /* Align to 64 bits. */ ovs_be64 generation_id; /* Primary Election Generation Id */ }; OFP_ASSERT(sizeof(struct ofp12_role_request) == 16); /* Controller roles. */ enum ofp12_controller_role { OFPCR12_ROLE_NOCHANGE, /* Don't change current role. */ OFPCR12_ROLE_EQUAL, /* Default role, full access. */ OFPCR12_ROLE_PRIMARY, /* Full access, at most one primary. */ OFPCR12_ROLE_SECONDARY, /* Read-only access. */ }; /* Packet received on port (datapath -> controller). */ struct ofp12_packet_in { ovs_be32 buffer_id; /* ID assigned by datapath. */ ovs_be16 total_len; /* Full length of frame. */ uint8_t reason; /* Reason packet is being sent (one of OFPR_*) */ uint8_t table_id; /* ID of the table that was looked up */ /* Followed by: * - Match * - Exactly 2 all-zero padding bytes, then * - An Ethernet frame whose length is inferred from header.length. * The padding bytes preceding the Ethernet frame ensure that the IP * header (if any) following the Ethernet header is 32-bit aligned. */ /* struct ofp12_match match; */ /* uint8_t pad[2]; Align to 64 bit + 16 bit */ /* uint8_t data[0]; Ethernet frame */ }; OFP_ASSERT(sizeof(struct ofp12_packet_in) == 8); /* Flow removed (datapath -> controller). */ struct ofp12_flow_removed { ovs_be64 cookie; /* Opaque controller-issued identifier. */ ovs_be16 priority; /* Priority level of flow entry. */ uint8_t reason; /* One of OFPRR_*. */ uint8_t table_id; /* ID of the table */ ovs_be32 duration_sec; /* Time flow was alive in seconds. */ ovs_be32 duration_nsec; /* Time flow was alive in nanoseconds beyond duration_sec. */ ovs_be16 idle_timeout; /* Idle timeout from original flow mod. */ ovs_be16 hard_timeout; /* Hard timeout from original flow mod. */ ovs_be64 packet_count; ovs_be64 byte_count; /* struct ofp12_match match; Description of fields. Variable size. */ }; OFP_ASSERT(sizeof(struct ofp12_flow_removed) == 40); #endif /* openflow/openflow-1.2.h */