# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation. # # 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. import base64 import logging import netaddr from ryu.ofproto import ether from ryu.ofproto import inet from ryu.ofproto import ofproto_v1_3 from ryu.ofproto import ofproto_v1_3_parser from ryu.lib import hub LOG = logging.getLogger('ryu.lib.ofctl_v1_3') DEFAULT_TIMEOUT = 1.0 def str_to_int(src): if isinstance(src, str): if src.startswith("0x") or src.startswith("0X"): dst = int(src, 16) else: dst = int(src) else: dst = src return dst def to_action(dp, dic): ofp = dp.ofproto parser = dp.ofproto_parser action_type = dic.get('type') if action_type == 'OUTPUT': out_port = int(dic.get('port', ofp.OFPP_ANY)) max_len = int(dic.get('max_len', ofp.OFPCML_MAX)) result = parser.OFPActionOutput(out_port, max_len) elif action_type == 'COPY_TTL_OUT': result = parser.OFPActionCopyTtlOut() elif action_type == 'COPY_TTL_IN': result = parser.OFPActionCopyTtlIn() elif action_type == 'SET_MPLS_TTL': mpls_ttl = int(dic.get('mpls_ttl')) result = parser.OFPActionSetMplsTtl(mpls_ttl) elif action_type == 'DEC_MPLS_TTL': result = parser.OFPActionDecMplsTtl() elif action_type == 'PUSH_VLAN': ethertype = int(dic.get('ethertype')) result = parser.OFPActionPushVlan(ethertype) elif action_type == 'POP_VLAN': result = parser.OFPActionPopVlan() elif action_type == 'PUSH_MPLS': ethertype = int(dic.get('ethertype')) result = parser.OFPActionPushMpls(ethertype) elif action_type == 'POP_MPLS': ethertype = int(dic.get('ethertype')) result = parser.OFPActionPopMpls(ethertype) elif action_type == 'SET_QUEUE': queue_id = int(dic.get('queue_id')) result = parser.OFPActionSetQueue(queue_id) elif action_type == 'GROUP': group_id = int(dic.get('group_id')) result = parser.OFPActionGroup(group_id) elif action_type == 'SET_NW_TTL': nw_ttl = int(dic.get('nw_ttl')) result = parser.OFPActionSetNwTtl(nw_ttl) elif action_type == 'DEC_NW_TTL': result = parser.OFPActionDecNwTtl() elif action_type == 'SET_FIELD': field = dic.get('field') value = dic.get('value') result = parser.OFPActionSetField(**{field: value}) elif action_type == 'PUSH_PBB': ethertype = int(dic.get('ethertype')) result = parser.OFPActionPushPbb(ethertype) elif action_type == 'POP_PBB': result = parser.OFPActionPopPbb() else: result = None return result def to_actions(dp, acts): inst = [] actions = [] ofp = dp.ofproto parser = dp.ofproto_parser for a in acts: action = to_action(dp, a) if action is not None: actions.append(action) else: action_type = a.get('type') if action_type == 'GOTO_TABLE': table_id = int(a.get('table_id')) inst.append(parser.OFPInstructionGotoTable(table_id)) elif action_type == 'WRITE_METADATA': metadata = str_to_int(a.get('metadata')) metadata_mask = (str_to_int(a['metadata_mask']) if 'metadata_mask' in a else parser.UINT64_MAX) inst.append( parser.OFPInstructionWriteMetadata( metadata, metadata_mask)) elif action_type == 'METER': meter_id = int(a.get('meter_id')) inst.append(parser.OFPInstructionMeter(meter_id)) else: LOG.error('Unknown action type: %s', action_type) inst.append(parser.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS, actions)) return inst def action_to_str(act): action_type = act.cls_action_type if action_type == ofproto_v1_3.OFPAT_OUTPUT: buf = 'OUTPUT:' + str(act.port) elif action_type == ofproto_v1_3.OFPAT_COPY_TTL_OUT: buf = 'COPY_TTL_OUT' elif action_type == ofproto_v1_3.OFPAT_COPY_TTL_IN: buf = 'COPY_TTL_IN' elif action_type == ofproto_v1_3.OFPAT_SET_MPLS_TTL: buf = 'SET_MPLS_TTL:' + str(act.mpls_ttl) elif action_type == ofproto_v1_3.OFPAT_DEC_MPLS_TTL: buf = 'DEC_MPLS_TTL' elif action_type == ofproto_v1_3.OFPAT_PUSH_VLAN: buf = 'PUSH_VLAN:' + str(act.ethertype) elif action_type == ofproto_v1_3.OFPAT_POP_VLAN: buf = 'POP_VLAN' elif action_type == ofproto_v1_3.OFPAT_PUSH_MPLS: buf = 'PUSH_MPLS:' + str(act.ethertype) elif action_type == ofproto_v1_3.OFPAT_POP_MPLS: buf = 'POP_MPLS:' + str(act.ethertype) elif action_type == ofproto_v1_3.OFPAT_SET_QUEUE: buf = 'SET_QUEUE:' + str(act.queue_id) elif action_type == ofproto_v1_3.OFPAT_GROUP: buf = 'GROUP:' + str(act.group_id) elif action_type == ofproto_v1_3.OFPAT_SET_NW_TTL: buf = 'SET_NW_TTL:' + str(act.nw_ttl) elif action_type == ofproto_v1_3.OFPAT_DEC_NW_TTL: buf = 'DEC_NW_TTL' elif action_type == ofproto_v1_3.OFPAT_SET_FIELD: buf = 'SET_FIELD: {%s:%s}' % (act.key, act.value) elif action_type == ofproto_v1_3.OFPAT_PUSH_PBB: buf = 'PUSH_PBB:' + str(act.ethertype) elif action_type == ofproto_v1_3.OFPAT_POP_PBB: buf = 'POP_PBB' else: buf = 'UNKNOWN' return buf def actions_to_str(instructions): actions = [] for instruction in instructions: if isinstance(instruction, ofproto_v1_3_parser.OFPInstructionActions): for a in instruction.actions: actions.append(action_to_str(a)) elif isinstance(instruction, ofproto_v1_3_parser.OFPInstructionGotoTable): buf = 'GOTO_TABLE:' + str(instruction.table_id) actions.append(buf) elif isinstance(instruction, ofproto_v1_3_parser.OFPInstructionWriteMetadata): buf = ('WRITE_METADATA:0x%x/0x%x' % (instruction.metadata, instruction.metadata_mask) if instruction.metadata_mask else 'WRITE_METADATA:0x%x' % instruction.metadata) actions.append(buf) elif isinstance(instruction, ofproto_v1_3_parser.OFPInstructionMeter): buf = 'METER:' + str(instruction.meter_id) actions.append(buf) else: continue return actions def to_match(dp, attrs): convert = {'in_port': int, 'in_phy_port': int, 'metadata': to_match_masked_int, 'dl_dst': to_match_eth, 'dl_src': to_match_eth, 'eth_dst': to_match_eth, 'eth_src': to_match_eth, 'dl_type': int, 'eth_type': int, 'dl_vlan': to_match_vid, 'vlan_vid': to_match_vid, 'vlan_pcp': int, 'ip_dscp': int, 'ip_ecn': int, 'nw_proto': int, 'ip_proto': int, 'nw_src': to_match_ip, 'nw_dst': to_match_ip, 'ipv4_src': to_match_ip, 'ipv4_dst': to_match_ip, 'tp_src': int, 'tp_dst': int, 'tcp_src': int, 'tcp_dst': int, 'udp_src': int, 'udp_dst': int, 'sctp_src': int, 'sctp_dst': int, 'icmpv4_type': int, 'icmpv4_code': int, 'arp_op': int, 'arp_spa': to_match_ip, 'arp_tpa': to_match_ip, 'arp_sha': to_match_eth, 'arp_tha': to_match_eth, 'ipv6_src': to_match_ip, 'ipv6_dst': to_match_ip, 'ipv6_flabel': int, 'icmpv6_type': int, 'icmpv6_code': int, 'ipv6_nd_target': to_match_ip, 'ipv6_nd_sll': to_match_eth, 'ipv6_nd_tll': to_match_eth, 'mpls_label': int, 'mpls_tc': int, 'mpls_bos': int, 'pbb_isid': int, 'tunnel_id': int, 'ipv6_exthdr': to_match_masked_int} keys = {'dl_dst': 'eth_dst', 'dl_src': 'eth_src', 'dl_type': 'eth_type', 'dl_vlan': 'vlan_vid', 'nw_src': 'ipv4_src', 'nw_dst': 'ipv4_dst', 'nw_proto': 'ip_proto'} if attrs.get('dl_type') == ether.ETH_TYPE_ARP or \ attrs.get('eth_type') == ether.ETH_TYPE_ARP: if 'nw_src' in attrs and 'arp_spa' not in attrs: attrs['arp_spa'] = attrs['nw_src'] del attrs['nw_src'] if 'nw_dst' in attrs and 'arp_tpa' not in attrs: attrs['arp_tpa'] = attrs['nw_dst'] del attrs['nw_dst'] kwargs = {} for key, value in attrs.items(): if key in keys: # For old field name key = keys[key] if key in convert: value = convert[key](value) if key == 'tp_src' or key == 'tp_dst': # TCP/UDP port conv = {inet.IPPROTO_TCP: {'tp_src': 'tcp_src', 'tp_dst': 'tcp_dst'}, inet.IPPROTO_UDP: {'tp_src': 'udp_src', 'tp_dst': 'udp_dst'}} ip_proto = attrs.get('nw_proto', attrs.get('ip_proto', 0)) key = conv[ip_proto][key] kwargs[key] = value else: # others kwargs[key] = value else: LOG.error('Unknown match field: %s', key) return dp.ofproto_parser.OFPMatch(**kwargs) def to_match_eth(value): if '/' in value: value = value.split('/') return value[0], value[1] else: return value def to_match_ip(value): if '/' in value: (ip_addr, ip_mask) = value.split('/') if ip_mask.isdigit(): ip = netaddr.ip.IPNetwork(value) ip_addr = str(ip.ip) ip_mask = str(ip.netmask) return ip_addr, ip_mask else: return value def to_match_vid(value): # NOTE: If "vlan_id/dl_vlan" field is described as decimal int value # (and decimal string value), it is treated as values of # VLAN tag, and OFPVID_PRESENT(0x1000) bit is automatically # applied. OTOH, If it is described as hexadecimal string, # treated as values of oxm_value (including OFPVID_PRESENT # bit), and OFPVID_PRESENT bit is NOT automatically applied. if isinstance(value, int): # described as decimal int value return value | ofproto_v1_3.OFPVID_PRESENT else: if '/' in value: val = value.split('/') return int(val[0], 0), int(val[1], 0) else: if value.isdigit(): # described as decimal string value return int(value, 10) | ofproto_v1_3.OFPVID_PRESENT else: return int(value, 0) def to_match_masked_int(value): if isinstance(value, str) and '/' in value: value = value.split('/') return str_to_int(value[0]), str_to_int(value[1]) else: return str_to_int(value) def match_to_str(ofmatch): keys = {'eth_src': 'dl_src', 'eth_dst': 'dl_dst', 'eth_type': 'dl_type', 'vlan_vid': 'dl_vlan', 'ipv4_src': 'nw_src', 'ipv4_dst': 'nw_dst', 'ip_proto': 'nw_proto', 'tcp_src': 'tp_src', 'tcp_dst': 'tp_dst', 'udp_src': 'tp_src', 'udp_dst': 'tp_dst' } match = {} ofmatch = ofmatch.to_jsondict()['OFPMatch'] ofmatch = ofmatch['oxm_fields'] for match_field in ofmatch: key = match_field['OXMTlv']['field'] if key in keys: key = keys[key] mask = match_field['OXMTlv']['mask'] value = match_field['OXMTlv']['value'] if key == 'dl_vlan': value = match_vid_to_str(value, mask) elif key == 'metadata' or key == 'ipv6_exthdr': value = match_masked_int_to_str(value, mask) else: if mask is not None: value = value + '/' + mask else: value = value match.setdefault(key, value) return match def match_masked_int_to_str(value, mask): return '%d/%d' % (value, mask) if mask else '%d' % value def match_vid_to_str(value, mask): if mask is not None: value = '0x%04x/0x%04x' % (value, mask) else: if value & ofproto_v1_3.OFPVID_PRESENT: value = str(value & ~ofproto_v1_3.OFPVID_PRESENT) else: value = '0x%04x' % value return value def send_stats_request(dp, stats, waiters, msgs): dp.set_xid(stats) waiters_per_dp = waiters.setdefault(dp.id, {}) lock = hub.Event() waiters_per_dp[stats.xid] = (lock, msgs) dp.send_msg(stats) lock.wait(timeout=DEFAULT_TIMEOUT) if not lock.is_set(): del waiters_per_dp[stats.xid] def get_desc_stats(dp, waiters): stats = dp.ofproto_parser.OFPDescStatsRequest(dp, 0) msgs = [] send_stats_request(dp, stats, waiters, msgs) s = {} for msg in msgs: stats = msg.body s = {'mfr_desc': stats.mfr_desc, 'hw_desc': stats.hw_desc, 'sw_desc': stats.sw_desc, 'serial_num': stats.serial_num, 'dp_desc': stats.dp_desc} desc = {str(dp.id): s} return desc def get_queue_stats(dp, waiters): ofp = dp.ofproto stats = dp.ofproto_parser.OFPQueueStatsRequest(dp, 0, ofp.OFPP_ANY, ofp.OFPQ_ALL) msgs = [] send_stats_request(dp, stats, waiters, msgs) s = [] for msg in msgs: stats = msg.body for stat in stats: s.append({'duration_nsec': stat.duration_nsec, 'duration_sec': stat.duration_sec, 'port_no': stat.port_no, 'queue_id': stat.queue_id, 'tx_bytes': stat.tx_bytes, 'tx_errors': stat.tx_errors, 'tx_packets': stat.tx_packets}) desc = {str(dp.id): s} return desc def get_flow_stats(dp, waiters, flow={}): table_id = int(flow.get('table_id', dp.ofproto.OFPTT_ALL)) flags = int(flow.get('flags', 0)) out_port = int(flow.get('out_port', dp.ofproto.OFPP_ANY)) out_group = int(flow.get('out_group', dp.ofproto.OFPG_ANY)) cookie = int(flow.get('cookie', 0)) cookie_mask = int(flow.get('cookie_mask', 0)) match = to_match(dp, flow.get('match', {})) stats = dp.ofproto_parser.OFPFlowStatsRequest( dp, flags, table_id, out_port, out_group, cookie, cookie_mask, match) msgs = [] send_stats_request(dp, stats, waiters, msgs) flows = [] for msg in msgs: for stats in msg.body: actions = actions_to_str(stats.instructions) match = match_to_str(stats.match) s = {'priority': stats.priority, 'cookie': stats.cookie, 'idle_timeout': stats.idle_timeout, 'hard_timeout': stats.hard_timeout, 'actions': actions, 'match': match, 'byte_count': stats.byte_count, 'duration_sec': stats.duration_sec, 'duration_nsec': stats.duration_nsec, 'packet_count': stats.packet_count, 'table_id': stats.table_id, 'length': stats.length, 'flags': stats.flags} flows.append(s) flows = {str(dp.id): flows} return flows def get_aggregate_flow_stats(dp, waiters, flow={}): table_id = int(flow.get('table_id', dp.ofproto.OFPTT_ALL)) flags = int(flow.get('flags', 0)) out_port = int(flow.get('out_port', dp.ofproto.OFPP_ANY)) out_group = int(flow.get('out_group', dp.ofproto.OFPG_ANY)) cookie = int(flow.get('cookie', 0)) cookie_mask = int(flow.get('cookie_mask', 0)) match = to_match(dp, flow.get('match', {})) stats = dp.ofproto_parser.OFPAggregateStatsRequest( dp, flags, table_id, out_port, out_group, cookie, cookie_mask, match) msgs = [] send_stats_request(dp, stats, waiters, msgs) flows = [] for msg in msgs: stats = msg.body s = {'packet_count': stats.packet_count, 'byte_count': stats.byte_count, 'flow_count': stats.flow_count} flows.append(s) flows = {str(dp.id): flows} return flows def get_port_stats(dp, waiters): stats = dp.ofproto_parser.OFPPortStatsRequest( dp, 0, dp.ofproto.OFPP_ANY) msgs = [] send_stats_request(dp, stats, waiters, msgs) ports = [] for msg in msgs: for stats in msg.body: s = {'port_no': stats.port_no, 'rx_packets': stats.rx_packets, 'tx_packets': stats.tx_packets, 'rx_bytes': stats.rx_bytes, 'tx_bytes': stats.tx_bytes, 'rx_dropped': stats.rx_dropped, 'tx_dropped': stats.tx_dropped, 'rx_errors': stats.rx_errors, 'tx_errors': stats.tx_errors, 'rx_frame_err': stats.rx_frame_err, 'rx_over_err': stats.rx_over_err, 'rx_crc_err': stats.rx_crc_err, 'collisions': stats.collisions, 'duration_sec': stats.duration_sec, 'duration_nsec': stats.duration_nsec} ports.append(s) ports = {str(dp.id): ports} return ports def get_meter_stats(dp, waiters): stats = dp.ofproto_parser.OFPMeterStatsRequest( dp, 0, dp.ofproto.OFPM_ALL) msgs = [] send_stats_request(dp, stats, waiters, msgs) meters = [] for msg in msgs: for stats in msg.body: bands = [] for band in stats.band_stats: b = {'packet_band_count': band.packet_band_count, 'byte_band_count': band.byte_band_count} bands.append(b) s = {'meter_id': stats.meter_id, 'len': stats.len, 'flow_count': stats.flow_count, 'packet_in_count': stats.packet_in_count, 'byte_in_count': stats.byte_in_count, 'duration_sec': stats.duration_sec, 'duration_nsec': stats.duration_nsec, 'band_stats': bands} meters.append(s) meters = {str(dp.id): meters} return meters def get_meter_features(dp, waiters): ofp = dp.ofproto type_convert = {ofp.OFPMBT_DROP: 'DROP', ofp.OFPMBT_DSCP_REMARK: 'DSCP_REMARK'} capa_convert = {ofp.OFPMF_KBPS: 'KBPS', ofp.OFPMF_PKTPS: 'PKTPS', ofp.OFPMF_BURST: 'BURST', ofp.OFPMF_STATS: 'STATS'} stats = dp.ofproto_parser.OFPMeterFeaturesStatsRequest(dp, 0) msgs = [] send_stats_request(dp, stats, waiters, msgs) features = [] for msg in msgs: for feature in msg.body: band_types = [] for k, v in type_convert.items(): if (1 << k) & feature.band_types: band_types.append(v) capabilities = [] for k, v in capa_convert.items(): if k & feature.capabilities: capabilities.append(v) f = {'max_meter': feature.max_meter, 'band_types': band_types, 'capabilities': capabilities, 'max_bands': feature.max_bands, 'max_color': feature.max_color} features.append(f) features = {str(dp.id): features} return features def get_meter_config(dp, waiters): flags = {dp.ofproto.OFPMF_KBPS: 'KBPS', dp.ofproto.OFPMF_PKTPS: 'PKTPS', dp.ofproto.OFPMF_BURST: 'BURST', dp.ofproto.OFPMF_STATS: 'STATS'} band_type = {dp.ofproto.OFPMBT_DROP: 'DROP', dp.ofproto.OFPMBT_DSCP_REMARK: 'DSCP_REMARK', dp.ofproto.OFPMBT_EXPERIMENTER: 'EXPERIMENTER'} stats = dp.ofproto_parser.OFPMeterConfigStatsRequest( dp, 0, dp.ofproto.OFPM_ALL) msgs = [] send_stats_request(dp, stats, waiters, msgs) configs = [] for msg in msgs: for config in msg.body: bands = [] for band in config.bands: b = {'type': band_type.get(band.type, ''), 'rate': band.rate, 'burst_size': band.burst_size} if band.type == dp.ofproto.OFPMBT_DSCP_REMARK: b['prec_level'] = band.prec_level elif band.type == dp.ofproto.OFPMBT_EXPERIMENTER: b['experimenter'] = band.experimenter bands.append(b) c_flags = [] for k, v in flags.items(): if k & config.flags: c_flags.append(v) c = {'flags': c_flags, 'meter_id': config.meter_id, 'bands': bands} configs.append(c) configs = {str(dp.id): configs} return configs def get_group_stats(dp, waiters): stats = dp.ofproto_parser.OFPGroupStatsRequest( dp, 0, dp.ofproto.OFPG_ALL) msgs = [] send_stats_request(dp, stats, waiters, msgs) groups = [] for msg in msgs: for stats in msg.body: bucket_stats = [] for bucket_stat in stats.bucket_stats: c = {'packet_count': bucket_stat.packet_count, 'byte_count': bucket_stat.byte_count} bucket_stats.append(c) g = {'length': stats.length, 'group_id': stats.group_id, 'ref_count': stats.ref_count, 'packet_count': stats.packet_count, 'byte_count': stats.byte_count, 'duration_sec': stats.duration_sec, 'duration_nsec': stats.duration_nsec, 'bucket_stats': bucket_stats} groups.append(g) groups = {str(dp.id): groups} return groups def get_group_features(dp, waiters): ofp = dp.ofproto type_convert = {ofp.OFPGT_ALL: 'ALL', ofp.OFPGT_SELECT: 'SELECT', ofp.OFPGT_INDIRECT: 'INDIRECT', ofp.OFPGT_FF: 'FF'} cap_convert = {ofp.OFPGFC_SELECT_WEIGHT: 'SELECT_WEIGHT', ofp.OFPGFC_SELECT_LIVENESS: 'SELECT_LIVENESS', ofp.OFPGFC_CHAINING: 'CHAINING', ofp.OFPGFC_CHAINING_CHECKS: 'CHAINING_CHECKS'} act_convert = {ofp.OFPAT_OUTPUT: 'OUTPUT', ofp.OFPAT_COPY_TTL_OUT: 'COPY_TTL_OUT', ofp.OFPAT_COPY_TTL_IN: 'COPY_TTL_IN', ofp.OFPAT_SET_MPLS_TTL: 'SET_MPLS_TTL', ofp.OFPAT_DEC_MPLS_TTL: 'DEC_MPLS_TTL', ofp.OFPAT_PUSH_VLAN: 'PUSH_VLAN', ofp.OFPAT_POP_VLAN: 'POP_VLAN', ofp.OFPAT_PUSH_MPLS: 'PUSH_MPLS', ofp.OFPAT_POP_MPLS: 'POP_MPLS', ofp.OFPAT_SET_QUEUE: 'SET_QUEUE', ofp.OFPAT_GROUP: 'GROUP', ofp.OFPAT_SET_NW_TTL: 'SET_NW_TTL', ofp.OFPAT_DEC_NW_TTL: 'DEC_NW_TTL', ofp.OFPAT_SET_FIELD: 'SET_FIELD', ofp.OFPAT_PUSH_PBB: 'PUSH_PBB', ofp.OFPAT_POP_PBB: 'POP_PBB'} stats = dp.ofproto_parser.OFPGroupFeaturesStatsRequest(dp, 0) msgs = [] send_stats_request(dp, stats, waiters, msgs) features = [] for msg in msgs: feature = msg.body types = [] for k, v in type_convert.items(): if (1 << k) & feature.types: types.append(v) capabilities = [] for k, v in cap_convert.items(): if k & feature.capabilities: capabilities.append(v) max_groups = [] for k, v in type_convert.items(): max_groups.append({v: feature.max_groups[k]}) actions = [] for k1, v1 in type_convert.items(): acts = [] for k2, v2 in act_convert.items(): if (1 << k2) & feature.actions[k1]: acts.append(v2) actions.append({v1: acts}) f = {'types': types, 'capabilities': capabilities, 'max_groups': max_groups, 'actions': actions} features.append(f) features = {str(dp.id): features} return features def get_group_desc(dp, waiters): type_convert = {dp.ofproto.OFPGT_ALL: 'ALL', dp.ofproto.OFPGT_SELECT: 'SELECT', dp.ofproto.OFPGT_INDIRECT: 'INDIRECT', dp.ofproto.OFPGT_FF: 'FF'} stats = dp.ofproto_parser.OFPGroupDescStatsRequest(dp, 0) msgs = [] send_stats_request(dp, stats, waiters, msgs) descs = [] for msg in msgs: for stats in msg.body: buckets = [] for bucket in stats.buckets: actions = [] for action in bucket.actions: actions.append(action_to_str(action)) b = {'weight': bucket.weight, 'watch_port': bucket.watch_port, 'watch_group': bucket.watch_group, 'actions': actions} buckets.append(b) d = {'type': type_convert.get(stats.type), 'group_id': stats.group_id, 'buckets': buckets} descs.append(d) descs = {str(dp.id): descs} return descs def get_port_desc(dp, waiters): stats = dp.ofproto_parser.OFPPortDescStatsRequest(dp, 0) msgs = [] send_stats_request(dp, stats, waiters, msgs) descs = [] for msg in msgs: stats = msg.body for stat in stats: d = {'port_no': stat.port_no, 'hw_addr': stat.hw_addr, 'name': stat.name, 'config': stat.config, 'state': stat.state, 'curr': stat.curr, 'advertised': stat.advertised, 'supported': stat.supported, 'peer': stat.peer, 'curr_speed': stat.curr_speed, 'max_speed': stat.max_speed} descs.append(d) descs = {str(dp.id): descs} return descs def mod_flow_entry(dp, flow, cmd): cookie = int(flow.get('cookie', 0)) cookie_mask = int(flow.get('cookie_mask', 0)) table_id = int(flow.get('table_id', 0)) idle_timeout = int(flow.get('idle_timeout', 0)) hard_timeout = int(flow.get('hard_timeout', 0)) priority = int(flow.get('priority', 0)) buffer_id = int(flow.get('buffer_id', dp.ofproto.OFP_NO_BUFFER)) out_port = int(flow.get('out_port', dp.ofproto.OFPP_ANY)) out_group = int(flow.get('out_group', dp.ofproto.OFPG_ANY)) flags = int(flow.get('flags', 0)) match = to_match(dp, flow.get('match', {})) inst = to_actions(dp, flow.get('actions', [])) flow_mod = dp.ofproto_parser.OFPFlowMod( dp, cookie, cookie_mask, table_id, cmd, idle_timeout, hard_timeout, priority, buffer_id, out_port, out_group, flags, match, inst) dp.send_msg(flow_mod) def mod_meter_entry(dp, flow, cmd): flags_convert = {'KBPS': dp.ofproto.OFPMF_KBPS, 'PKTPS': dp.ofproto.OFPMF_PKTPS, 'BURST': dp.ofproto.OFPMF_BURST, 'STATS': dp.ofproto.OFPMF_STATS} flow_flags = flow.get('flags') if not isinstance(flow_flags, list): flow_flags = [flow_flags] flags = 0 for flag in flow_flags: flags |= flags_convert.get(flag, 0) if not flags: LOG.error('Unknown flags: %s', flow.get('flags')) meter_id = int(flow.get('meter_id', 0)) bands = [] for band in flow.get('bands', []): band_type = band.get('type') rate = int(band.get('rate', 0)) burst_size = int(band.get('burst_size', 0)) if band_type == 'DROP': bands.append( dp.ofproto_parser.OFPMeterBandDrop(rate, burst_size)) elif band_type == 'DSCP_REMARK': prec_level = int(band.get('prec_level', 0)) bands.append( dp.ofproto_parser.OFPMeterBandDscpRemark( rate, burst_size, prec_level)) elif band_type == 'EXPERIMENTER': experimenter = int(band.get('experimenter', 0)) bands.append( dp.ofproto_parser.OFPMeterBandExperimenter( rate, burst_size, experimenter)) else: LOG.error('Unknown band type: %s', band_type) meter_mod = dp.ofproto_parser.OFPMeterMod( dp, cmd, flags, meter_id, bands) dp.send_msg(meter_mod) def mod_group_entry(dp, group, cmd): type_convert = {'ALL': dp.ofproto.OFPGT_ALL, 'SELECT': dp.ofproto.OFPGT_SELECT, 'INDIRECT': dp.ofproto.OFPGT_INDIRECT, 'FF': dp.ofproto.OFPGT_FF} type_ = type_convert.get(group.get('type', 'ALL')) if type_ is None: LOG.error('Unknown type: %s', group.get('type')) group_id = int(group.get('group_id', 0)) buckets = [] for bucket in group.get('buckets', []): weight = int(bucket.get('weight', 0)) watch_port = int(bucket.get('watch_port', dp.ofproto.OFPP_ANY)) watch_group = int(bucket.get('watch_group', dp.ofproto.OFPG_ANY)) actions = [] for dic in bucket.get('actions', []): action = to_action(dp, dic) if action is not None: actions.append(action) buckets.append(dp.ofproto_parser.OFPBucket( weight, watch_port, watch_group, actions)) group_mod = dp.ofproto_parser.OFPGroupMod( dp, cmd, type_, group_id, buckets) dp.send_msg(group_mod) def mod_port_behavior(dp, port_config): port_no = int(port_config.get('port_no', 0)) hw_addr = port_config.get('hw_addr') config = int(port_config.get('config', 0)) mask = int(port_config.get('mask', 0)) advertise = int(port_config.get('advertise')) port_mod = dp.ofproto_parser.OFPPortMod( dp, port_no, hw_addr, config, mask, advertise) dp.send_msg(port_mod) def send_experimenter(dp, exp): experimenter = exp.get('experimenter', 0) exp_type = exp.get('exp_type', 0) data_type = exp.get('data_type', 'ascii') if data_type != 'ascii' and data_type != 'base64': LOG.error('Unknown data type: %s', data_type) data = exp.get('data', '') if data_type == 'base64': data = base64.b64decode(data) expmsg = dp.ofproto_parser.OFPExperimenter( dp, experimenter, exp_type, data) dp.send_msg(expmsg)