2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include "vom/interface.hpp"
17 #include "vom/interface_cmds.hpp"
18 #include "vom/interface_factory.hpp"
19 #include "vom/l3_binding_cmds.hpp"
20 #include "vom/logger.hpp"
21 #include "vom/prefix.hpp"
25 * A DB of all the interfaces, key on the name
27 singular_db<const std::string, interface> interface::m_db;
30 * A DB of all the interfaces, key on VPP's handle
32 std::map<handle_t, std::weak_ptr<interface>> interface::m_hdl_db;
34 interface::event_handler interface::m_evh;
37 * Construct a new object matching the desried state
39 interface::interface(const std::string& name,
40 interface::type_t itf_type,
41 interface::admin_state_t itf_state)
42 : m_hdl(handle_t::INVALID)
46 , m_table_id(route::DEFAULT_TABLE)
47 , m_l2_address(l2_address_t::ZERO, rc_t::UNSET)
48 , m_oper(oper_state_t::DOWN)
52 interface::interface(const handle_t& handle,
53 const l2_address_t& l2_address,
54 const std::string& name,
55 interface::type_t type,
56 interface::admin_state_t state)
57 : m_hdl(handle, rc_t::OK)
60 , m_state(state, rc_t::OK)
61 , m_table_id(route::DEFAULT_TABLE)
62 , m_l2_address(l2_address)
63 , m_oper(oper_state_t::DOWN)
67 interface::interface(const std::string& name,
68 interface::type_t itf_type,
69 interface::admin_state_t itf_state,
70 const route_domain& rd)
71 : m_hdl(handle_t::INVALID)
76 , m_table_id(m_rd->table_id())
77 , m_l2_address(l2_address_t::ZERO, rc_t::UNSET)
78 , m_oper(oper_state_t::DOWN)
82 interface::interface(const interface& o)
88 , m_table_id(o.m_table_id)
89 , m_l2_address(o.m_l2_address)
94 interface::event_listener::event_listener()
95 : m_status(rc_t::NOOP)
100 interface::event_listener::status()
105 interface::stat_listener::stat_listener()
106 : m_status(rc_t::NOOP)
111 interface::stat_listener::status()
117 * Return the interface type
119 const interface::type_t&
120 interface::type() const
126 interface::handle() const
128 return (singular()->handle_i());
132 interface::handle_i() const
134 return (m_hdl.data());
138 interface::l2_address() const
140 return (m_l2_address.data());
143 interface::const_iterator_t
146 return m_db.cbegin();
149 interface::const_iterator_t
158 if (m_table_id && (m_table_id.data() != route::DEFAULT_TABLE)) {
159 m_table_id.data() = route::DEFAULT_TABLE;
161 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV4, m_hdl));
163 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV6, m_hdl));
167 HW::dequeue(m_stats);
169 // If the interface is up, bring it down
170 if (m_state && interface::admin_state_t::UP == m_state.data()) {
171 m_state.data() = interface::admin_state_t::DOWN;
172 HW::enqueue(new interface_cmds::state_change_cmd(m_state, m_hdl));
176 std::queue<cmd*> cmds;
177 HW::enqueue(mk_delete_cmd(cmds));
186 std::queue<cmd*> cmds;
187 HW::enqueue(mk_create_cmd(cmds));
190 if (m_state && interface::admin_state_t::UP == m_state.data()) {
191 HW::enqueue(new interface_cmds::state_change_cmd(m_state, m_hdl));
194 if (m_table_id && (m_table_id.data() != route::DEFAULT_TABLE)) {
196 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV4, m_hdl));
198 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV6, m_hdl));
202 interface::~interface()
211 // not in the DB anymore.
212 m_db.release(m_name, this);
216 interface::to_string() const
218 std::ostringstream s;
219 s << "interface:[" << m_name << " type:" << m_type.to_string()
220 << " hdl:" << m_hdl.to_string()
221 << " l2-address:" << m_l2_address.to_string();
224 s << " rd:" << m_rd->to_string();
227 s << " admin-state:" << m_state.to_string()
228 << " oper-state:" << m_oper.to_string() << "]";
234 interface::name() const
239 const interface::key_type&
240 interface::key() const
246 interface::mk_create_cmd(std::queue<cmd*>& q)
248 if (type_t::LOOPBACK == m_type) {
249 q.push(new interface_cmds::loopback_create_cmd(m_hdl, m_name));
250 } else if (type_t::BVI == m_type) {
251 q.push(new interface_cmds::loopback_create_cmd(m_hdl, m_name));
252 q.push(new interface_cmds::set_tag(m_hdl, m_name));
253 } else if (type_t::AFPACKET == m_type) {
254 q.push(new interface_cmds::af_packet_create_cmd(m_hdl, m_name));
255 } else if (type_t::TAP == m_type) {
256 q.push(new interface_cmds::tap_create_cmd(m_hdl, m_name));
263 interface::mk_delete_cmd(std::queue<cmd*>& q)
265 if ((type_t::LOOPBACK == m_type) || (type_t::BVI == m_type)) {
266 q.push(new interface_cmds::loopback_delete_cmd(m_hdl));
267 } else if (type_t::AFPACKET == m_type) {
268 q.push(new interface_cmds::af_packet_delete_cmd(m_hdl, m_name));
269 } else if (type_t::TAP == m_type) {
270 q.push(new interface_cmds::tap_delete_cmd(m_hdl));
277 interface::update(const interface& desired)
280 * the desired state is always that the interface should be created
282 if (rc_t::OK != m_hdl.rc()) {
283 std::queue<cmd*> cmds;
284 HW::enqueue(mk_create_cmd(cmds));
286 * interface create now, so we can barf early if it fails
292 * If the interface is not created do other commands should be issued
294 if (rc_t::OK != m_hdl.rc())
298 * change the interface state to that which is deisred
300 if (m_state.update(desired.m_state)) {
301 HW::enqueue(new interface_cmds::state_change_cmd(m_state, m_hdl));
305 * change the interface state to that which is deisred
307 if (m_l2_address.update(desired.m_l2_address)) {
308 HW::enqueue(new interface_cmds::set_mac_cmd(m_l2_address, m_hdl));
312 * If the interface is mapped into a route domain, set VPP's
315 if (m_rd != desired.m_rd) {
317 * changing route domains. need to remove all L3 bindings, swap the table
318 * then reapply the bindings.
320 auto it = l3_binding::cbegin();
322 while (it != l3_binding::cend()) {
323 if (it->second.lock()->itf().key() == key())
324 it->second.lock()->sweep();
328 m_table_id.update(m_rd ? m_rd->table_id() : route::DEFAULT_TABLE);
330 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV4, m_hdl));
332 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV6, m_hdl));
335 it = l3_binding::cbegin();
336 while (it != l3_binding::cend()) {
337 if (it->second.lock()->itf().key() == key())
338 it->second.lock()->replay(); //(*it->second.lock());
341 } else if (!m_table_id && m_rd) {
343 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV4, m_hdl));
345 new interface_cmds::set_table_cmd(m_table_id, l3_proto_t::IPV6, m_hdl));
350 interface::set(const l2_address_t& addr)
352 assert(rc_t::UNSET == m_l2_address.rc());
353 m_l2_address.set(rc_t::NOOP);
354 m_l2_address.update(addr);
358 interface::set(const oper_state_t& state)
364 interface::enable_stats_i(interface::stat_listener& el)
366 m_stats.reset(new interface_cmds::stats_cmd(el, handle_i()));
367 HW::enqueue(m_stats);
372 interface::enable_stats(interface::stat_listener& el)
374 singular()->enable_stats_i(el);
377 std::shared_ptr<interface>
378 interface::singular_i() const
380 return (m_db.find_or_add(name(), *this));
383 std::shared_ptr<interface>
384 interface::singular() const
389 std::shared_ptr<interface>
390 interface::find(const std::string& name)
392 return (m_db.find(name));
395 std::shared_ptr<interface>
396 interface::find(const handle_t& handle)
398 return (m_hdl_db[handle].lock());
402 interface::add(const std::string& name, const HW::item<handle_t>& item)
404 std::shared_ptr<interface> sp = find(name);
407 m_hdl_db[item.data()] = sp;
412 interface::remove(const HW::item<handle_t>& item)
414 m_hdl_db.erase(item.data());
418 interface::dump(std::ostream& os)
424 interface::event_handler::handle_populate(const client_db::key_t& key)
427 * dump VPP current states
429 std::shared_ptr<interface_cmds::dump_cmd> cmd(new interface_cmds::dump_cmd());
434 for (auto& itf_record : *cmd) {
435 std::unique_ptr<interface> itf =
436 interface_factory::new_interface(itf_record.get_payload());
438 if (itf && interface::type_t::LOCAL != itf->type()) {
439 VOM_LOG(log_level_t::DEBUG) << "dump: " << itf->to_string();
441 * Write each of the discovered interfaces into the OM,
442 * but disable the HW Command q whilst we do, so that no
443 * commands are sent to VPP
445 OM::commit(key, *itf);
448 * Get the address configured on the interface
450 std::shared_ptr<l3_binding_cmds::dump_v4_cmd> dcmd =
451 std::make_shared<l3_binding_cmds::dump_v4_cmd>(
452 l3_binding_cmds::dump_v4_cmd(itf->handle()));
457 for (auto& l3_record : *dcmd) {
458 auto& payload = l3_record.get_payload();
459 const route::prefix_t pfx(payload.is_ipv6, payload.ip,
460 payload.prefix_length);
462 VOM_LOG(log_level_t::DEBUG) << "dump: " << pfx.to_string();
464 l3_binding l3(*itf, pfx);
471 interface::event_handler::event_handler()
473 OM::register_listener(this);
474 inspect::register_handler({ "interface", "intf" }, "interfaces", this);
478 interface::event_handler::handle_replay()
484 interface::event_handler::order() const
486 return (dependency_t::INTERFACE);
490 interface::event_handler::show(std::ostream& os)
496 * fd.io coding-style-patch-verification: ON
499 * eval: (c-set-style "mozilla")