Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004-2023 Savoir-faire Linux Inc. |
| 3 | * |
| 4 | * Author: Stepan Salenikovich <stepan.salenikovich@savoirfairelinux.com> |
| 5 | * Author: Eden Abitbol <eden.abitbol@savoirfairelinux.com> |
| 6 | * Author: Mohamed Chibani <mohamed.chibani@savoirfairelinux.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 3 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | */ |
| 22 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 23 | #include "upnp/upnp_context.h" |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 24 | #include "protocol/upnp_protocol.h" |
| 25 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 26 | #include <asio/steady_timer.hpp> |
Adrien Béraud | 9d35096 | 2023-07-13 15:36:32 -0400 | [diff] [blame] | 27 | #if __has_include(<fmt/std.h>) |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 28 | #include <fmt/std.h> |
Adrien Béraud | 9d35096 | 2023-07-13 15:36:32 -0400 | [diff] [blame] | 29 | #else |
| 30 | #include <fmt/ostream.h> |
| 31 | #endif |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 32 | |
Adrien Béraud | 1ae60aa | 2023-07-07 09:55:09 -0400 | [diff] [blame] | 33 | namespace dhtnet { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 34 | namespace upnp { |
| 35 | |
| 36 | constexpr static auto MAP_UPDATE_INTERVAL = std::chrono::seconds(30); |
| 37 | constexpr static int MAX_REQUEST_RETRIES = 20; |
| 38 | constexpr static int MAX_REQUEST_REMOVE_COUNT = 5; |
| 39 | |
| 40 | constexpr static uint16_t UPNP_TCP_PORT_MIN {10000}; |
| 41 | constexpr static uint16_t UPNP_TCP_PORT_MAX {UPNP_TCP_PORT_MIN + 5000}; |
| 42 | constexpr static uint16_t UPNP_UDP_PORT_MIN {20000}; |
| 43 | constexpr static uint16_t UPNP_UDP_PORT_MAX {UPNP_UDP_PORT_MIN + 5000}; |
| 44 | |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 45 | UPnPContext::UPnPContext(std::shared_ptr<asio::io_context> ctx, std::shared_ptr<dht::log::Logger> logger) |
| 46 | : mappingListUpdateTimer_(*ioContext) |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 47 | { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 48 | // JAMI_DBG("Creating UPnPContext instance [%p]", this); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 49 | |
| 50 | // Set port ranges |
| 51 | portRange_.emplace(PortType::TCP, std::make_pair(UPNP_TCP_PORT_MIN, UPNP_TCP_PORT_MAX)); |
| 52 | portRange_.emplace(PortType::UDP, std::make_pair(UPNP_UDP_PORT_MIN, UPNP_UDP_PORT_MAX)); |
| 53 | |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 54 | ioContext->post([this] { init(); }); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 55 | } |
| 56 | |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 57 | /*std::shared_ptr<UPnPContext> |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 58 | UPnPContext::getUPnPContext() |
| 59 | { |
| 60 | // This is the unique shared instance (singleton) of UPnPContext class. |
| 61 | static auto context = std::make_shared<UPnPContext>(); |
| 62 | return context; |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 63 | }*/ |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 64 | |
| 65 | void |
| 66 | UPnPContext::shutdown(std::condition_variable& cv) |
| 67 | { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 68 | // JAMI_DBG("Shutdown UPnPContext instance [%p]", this); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 69 | |
| 70 | stopUpnp(true); |
| 71 | |
| 72 | for (auto const& [_, proto] : protocolList_) { |
| 73 | proto->terminate(); |
| 74 | } |
| 75 | |
| 76 | { |
| 77 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 78 | mappingList_->clear(); |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 79 | //if (mappingListUpdateTimer_) |
| 80 | // mappingListUpdateTimer_->cancel(); |
| 81 | mappingListUpdateTimer_.cancel(); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 82 | controllerList_.clear(); |
| 83 | protocolList_.clear(); |
| 84 | shutdownComplete_ = true; |
| 85 | cv.notify_one(); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | void |
| 90 | UPnPContext::shutdown() |
| 91 | { |
| 92 | std::unique_lock<std::mutex> lk(mappingMutex_); |
| 93 | std::condition_variable cv; |
| 94 | |
| 95 | runOnUpnpContextQueue([&, this] { shutdown(cv); }); |
| 96 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 97 | // JAMI_DBG("Waiting for shutdown ..."); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 98 | |
| 99 | if (cv.wait_for(lk, std::chrono::seconds(30), [this] { return shutdownComplete_; })) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 100 | // JAMI_DBG("Shutdown completed"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 101 | } else { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 102 | // JAMI_ERR("Shutdown timed-out"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 103 | } |
| 104 | } |
| 105 | |
| 106 | UPnPContext::~UPnPContext() |
| 107 | { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 108 | // JAMI_DBG("UPnPContext instance [%p] destroyed", this); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | void |
| 112 | UPnPContext::init() |
| 113 | { |
| 114 | threadId_ = getCurrentThread(); |
| 115 | CHECK_VALID_THREAD(); |
| 116 | |
| 117 | #if HAVE_LIBNATPMP |
| 118 | auto natPmp = std::make_shared<NatPmp>(); |
| 119 | natPmp->setObserver(this); |
| 120 | protocolList_.emplace(NatProtocolType::NAT_PMP, std::move(natPmp)); |
| 121 | #endif |
| 122 | |
| 123 | #if HAVE_LIBUPNP |
| 124 | auto pupnp = std::make_shared<PUPnP>(); |
| 125 | pupnp->setObserver(this); |
| 126 | protocolList_.emplace(NatProtocolType::PUPNP, std::move(pupnp)); |
| 127 | #endif |
| 128 | } |
| 129 | |
| 130 | void |
| 131 | UPnPContext::startUpnp() |
| 132 | { |
| 133 | assert(not controllerList_.empty()); |
| 134 | |
| 135 | CHECK_VALID_THREAD(); |
| 136 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 137 | // JAMI_DBG("Starting UPNP context"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 138 | |
| 139 | // Request a new IGD search. |
| 140 | for (auto const& [_, protocol] : protocolList_) { |
| 141 | protocol->searchForIgd(); |
| 142 | } |
| 143 | |
| 144 | started_ = true; |
| 145 | } |
| 146 | |
| 147 | void |
| 148 | UPnPContext::stopUpnp(bool forceRelease) |
| 149 | { |
| 150 | if (not isValidThread()) { |
| 151 | runOnUpnpContextQueue([this, forceRelease] { stopUpnp(forceRelease); }); |
| 152 | return; |
| 153 | } |
| 154 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 155 | // JAMI_DBG("Stopping UPNP context"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 156 | |
| 157 | // Clear all current mappings if any. |
| 158 | |
| 159 | // Use a temporary list to avoid processing the mapping |
| 160 | // list while holding the lock. |
| 161 | std::list<Mapping::sharedPtr_t> toRemoveList; |
| 162 | { |
| 163 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 164 | |
| 165 | PortType types[2] {PortType::TCP, PortType::UDP}; |
| 166 | for (auto& type : types) { |
| 167 | auto& mappingList = getMappingList(type); |
| 168 | for (auto const& [_, map] : mappingList) { |
| 169 | toRemoveList.emplace_back(map); |
| 170 | } |
| 171 | } |
| 172 | // Invalidate the current IGDs. |
| 173 | preferredIgd_.reset(); |
| 174 | validIgdList_.clear(); |
| 175 | } |
| 176 | for (auto const& map : toRemoveList) { |
| 177 | requestRemoveMapping(map); |
| 178 | |
| 179 | // Notify is not needed in updateMappingState when |
| 180 | // shutting down (hence set it to false). NotifyCallback |
| 181 | // would trigger a new SIP registration and create a |
| 182 | // false registered state upon program close. |
| 183 | // It's handled by upper layers. |
| 184 | |
| 185 | updateMappingState(map, MappingState::FAILED, false); |
| 186 | // We dont remove mappings with auto-update enabled, |
| 187 | // unless forceRelease is true. |
| 188 | if (not map->getAutoUpdate() or forceRelease) { |
| 189 | map->enableAutoUpdate(false); |
| 190 | unregisterMapping(map); |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | // Clear all current IGDs. |
| 195 | for (auto const& [_, protocol] : protocolList_) { |
| 196 | protocol->clearIgds(); |
| 197 | } |
| 198 | |
| 199 | started_ = false; |
| 200 | } |
| 201 | |
| 202 | uint16_t |
| 203 | UPnPContext::generateRandomPort(PortType type, bool mustBeEven) |
| 204 | { |
| 205 | auto minPort = type == PortType::TCP ? UPNP_TCP_PORT_MIN : UPNP_UDP_PORT_MIN; |
| 206 | auto maxPort = type == PortType::TCP ? UPNP_TCP_PORT_MAX : UPNP_UDP_PORT_MAX; |
| 207 | |
| 208 | if (minPort >= maxPort) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 209 | // JAMI_ERR("Max port number (%i) must be greater than min port number (%i)", maxPort, minPort); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 210 | // Must be called with valid range. |
| 211 | assert(false); |
| 212 | } |
| 213 | |
| 214 | int fact = mustBeEven ? 2 : 1; |
| 215 | if (mustBeEven) { |
| 216 | minPort /= fact; |
| 217 | maxPort /= fact; |
| 218 | } |
| 219 | |
| 220 | // Seed the generator. |
| 221 | static std::mt19937 gen(dht::crypto::getSeededRandomEngine()); |
| 222 | // Define the range. |
| 223 | std::uniform_int_distribution<uint16_t> dist(minPort, maxPort); |
| 224 | return dist(gen) * fact; |
| 225 | } |
| 226 | |
| 227 | void |
| 228 | UPnPContext::connectivityChanged() |
| 229 | { |
| 230 | if (not isValidThread()) { |
| 231 | runOnUpnpContextQueue([this] { connectivityChanged(); }); |
| 232 | return; |
| 233 | } |
| 234 | |
| 235 | auto hostAddr = ip_utils::getLocalAddr(AF_INET); |
| 236 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 237 | // JAMI_DBG("Connectivity change check: host address %s", hostAddr.toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 238 | |
| 239 | auto restartUpnp = false; |
| 240 | |
| 241 | // On reception of "connectivity change" notification, the UPNP search |
| 242 | // will be restarted if either there is no valid IGD, or the IGD address |
| 243 | // changed. |
| 244 | |
| 245 | if (not isReady()) { |
| 246 | restartUpnp = true; |
| 247 | } else { |
| 248 | // Check if the host address changed. |
| 249 | for (auto const& [_, protocol] : protocolList_) { |
| 250 | if (protocol->isReady() and hostAddr != protocol->getHostAddress()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 251 | // JAMI_WARN("Host address changed from %s to %s", |
| 252 | // protocol->getHostAddress().toString().c_str(), |
| 253 | // hostAddr.toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 254 | protocol->clearIgds(); |
| 255 | restartUpnp = true; |
| 256 | break; |
| 257 | } |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | // We have at least one valid IGD and the host address did |
| 262 | // not change, so no need to restart. |
| 263 | if (not restartUpnp) { |
| 264 | return; |
| 265 | } |
| 266 | |
| 267 | // No registered controller. A new search will be performed when |
| 268 | // a controller is registered. |
| 269 | if (controllerList_.empty()) |
| 270 | return; |
| 271 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 272 | // JAMI_DBG("Connectivity changed. Clear the IGDs and restart"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 273 | |
| 274 | stopUpnp(); |
| 275 | startUpnp(); |
| 276 | |
| 277 | // Mapping with auto update enabled must be processed first. |
| 278 | processMappingWithAutoUpdate(); |
| 279 | } |
| 280 | |
| 281 | void |
| 282 | UPnPContext::setPublicAddress(const IpAddr& addr) |
| 283 | { |
| 284 | if (not addr) |
| 285 | return; |
| 286 | |
| 287 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 288 | if (knownPublicAddress_ != addr) { |
| 289 | knownPublicAddress_ = std::move(addr); |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 290 | // JAMI_DBG("Setting the known public address to %s", addr.toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 291 | } |
| 292 | } |
| 293 | |
| 294 | bool |
| 295 | UPnPContext::isReady() const |
| 296 | { |
| 297 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 298 | return not validIgdList_.empty(); |
| 299 | } |
| 300 | |
| 301 | IpAddr |
| 302 | UPnPContext::getExternalIP() const |
| 303 | { |
| 304 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 305 | // Return the first IGD Ip available. |
| 306 | if (not validIgdList_.empty()) { |
| 307 | return (*validIgdList_.begin())->getPublicIp(); |
| 308 | } |
| 309 | return {}; |
| 310 | } |
| 311 | |
| 312 | Mapping::sharedPtr_t |
| 313 | UPnPContext::reserveMapping(Mapping& requestedMap) |
| 314 | { |
| 315 | auto desiredPort = requestedMap.getExternalPort(); |
| 316 | |
| 317 | if (desiredPort == 0) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 318 | // JAMI_DBG("Desired port is not set, will provide the first available port for [%s]", |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 319 | // requestedMap.getTypeStr()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 320 | } else { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 321 | // JAMI_DBG("Try to find mapping for port %i [%s]", desiredPort, requestedMap.getTypeStr()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | Mapping::sharedPtr_t mapRes; |
| 325 | |
| 326 | { |
| 327 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 328 | auto& mappingList = getMappingList(requestedMap.getType()); |
| 329 | |
| 330 | // We try to provide a mapping in "OPEN" state. If not found, |
| 331 | // we provide any available mapping. In this case, it's up to |
| 332 | // the caller to use it or not. |
| 333 | for (auto const& [_, map] : mappingList) { |
| 334 | // If the desired port is null, we pick the first available port. |
| 335 | if (map->isValid() and (desiredPort == 0 or map->getExternalPort() == desiredPort) |
| 336 | and map->isAvailable()) { |
| 337 | // Considere the first available mapping regardless of its |
| 338 | // state. A mapping with OPEN state will be used if found. |
| 339 | if (not mapRes) |
| 340 | mapRes = map; |
| 341 | |
| 342 | if (map->getState() == MappingState::OPEN) { |
| 343 | // Found an "OPEN" mapping. We are done. |
| 344 | mapRes = map; |
| 345 | break; |
| 346 | } |
| 347 | } |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | // Create a mapping if none was available. |
| 352 | if (not mapRes) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 353 | // JAMI_WARN("Did not find any available mapping. Will request one now"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 354 | mapRes = registerMapping(requestedMap); |
| 355 | } |
| 356 | |
| 357 | if (mapRes) { |
| 358 | // Make the mapping unavailable |
| 359 | mapRes->setAvailable(false); |
| 360 | // Copy attributes. |
| 361 | mapRes->setNotifyCallback(requestedMap.getNotifyCallback()); |
| 362 | mapRes->enableAutoUpdate(requestedMap.getAutoUpdate()); |
| 363 | // Notify the listener. |
| 364 | if (auto cb = mapRes->getNotifyCallback()) |
| 365 | cb(mapRes); |
| 366 | } |
| 367 | |
| 368 | updateMappingList(true); |
| 369 | |
| 370 | return mapRes; |
| 371 | } |
| 372 | |
| 373 | void |
| 374 | UPnPContext::releaseMapping(const Mapping& map) |
| 375 | { |
| 376 | if (not isValidThread()) { |
| 377 | runOnUpnpContextQueue([this, map] { releaseMapping(map); }); |
| 378 | return; |
| 379 | } |
| 380 | |
| 381 | auto mapPtr = getMappingWithKey(map.getMapKey()); |
| 382 | |
| 383 | if (not mapPtr) { |
| 384 | // Might happen if the mapping failed or was never granted. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 385 | // JAMI_DBG("Mapping %s does not exist or was already removed", map.toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 386 | return; |
| 387 | } |
| 388 | |
| 389 | if (mapPtr->isAvailable()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 390 | // JAMI_WARN("Trying to release an unused mapping %s", mapPtr->toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 391 | return; |
| 392 | } |
| 393 | |
| 394 | // Remove it. |
| 395 | requestRemoveMapping(mapPtr); |
| 396 | unregisterMapping(mapPtr); |
| 397 | } |
| 398 | |
| 399 | void |
| 400 | UPnPContext::registerController(void* controller) |
| 401 | { |
| 402 | { |
| 403 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 404 | if (shutdownComplete_) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 405 | // JAMI_WARN("UPnPContext already shut down"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 406 | return; |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | if (not isValidThread()) { |
| 411 | runOnUpnpContextQueue([this, controller] { registerController(controller); }); |
| 412 | return; |
| 413 | } |
| 414 | |
| 415 | auto ret = controllerList_.emplace(controller); |
| 416 | if (not ret.second) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 417 | // JAMI_WARN("Controller %p is already registered", controller); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 418 | return; |
| 419 | } |
| 420 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 421 | // JAMI_DBG("Successfully registered controller %p", controller); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 422 | if (not started_) |
| 423 | startUpnp(); |
| 424 | } |
| 425 | |
| 426 | void |
| 427 | UPnPContext::unregisterController(void* controller) |
| 428 | { |
| 429 | if (not isValidThread()) { |
| 430 | runOnUpnpContextQueue([this, controller] { unregisterController(controller); }); |
| 431 | return; |
| 432 | } |
| 433 | |
| 434 | if (controllerList_.erase(controller) == 1) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 435 | // JAMI_DBG("Successfully unregistered controller %p", controller); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 436 | } else { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 437 | // JAMI_DBG("Controller %p was already removed", controller); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 438 | } |
| 439 | |
| 440 | if (controllerList_.empty()) { |
| 441 | stopUpnp(); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | uint16_t |
| 446 | UPnPContext::getAvailablePortNumber(PortType type) |
| 447 | { |
| 448 | // Only return an availalable random port. No actual |
| 449 | // reservation is made here. |
| 450 | |
| 451 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 452 | auto& mappingList = getMappingList(type); |
| 453 | int tryCount = 0; |
| 454 | while (tryCount++ < MAX_REQUEST_RETRIES) { |
| 455 | uint16_t port = generateRandomPort(type); |
| 456 | Mapping map(type, port, port); |
| 457 | if (mappingList.find(map.getMapKey()) == mappingList.end()) |
| 458 | return port; |
| 459 | } |
| 460 | |
| 461 | // Very unlikely to get here. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 462 | // JAMI_ERR("Could not find an available port after %i trials", MAX_REQUEST_RETRIES); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | void |
| 467 | UPnPContext::requestMapping(const Mapping::sharedPtr_t& map) |
| 468 | { |
| 469 | assert(map); |
| 470 | |
| 471 | if (not isValidThread()) { |
| 472 | runOnUpnpContextQueue([this, map] { requestMapping(map); }); |
| 473 | return; |
| 474 | } |
| 475 | |
| 476 | auto const& igd = getPreferredIgd(); |
| 477 | // We must have at least a valid IGD pointer if we get here. |
| 478 | // Not this method is called only if there were a valid IGD, however, |
| 479 | // because the processing is asynchronous, it's possible that the IGD |
| 480 | // was invalidated when the this code executed. |
| 481 | if (not igd) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 482 | // JAMI_DBG("No valid IGDs available"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 483 | return; |
| 484 | } |
| 485 | |
| 486 | map->setIgd(igd); |
| 487 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 488 | // JAMI_DBG("Request mapping %s using protocol [%s] IGD [%s]", |
| 489 | // map->toString().c_str(), |
| 490 | // igd->getProtocolName(), |
| 491 | // igd->toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 492 | |
| 493 | if (map->getState() != MappingState::IN_PROGRESS) |
| 494 | updateMappingState(map, MappingState::IN_PROGRESS); |
| 495 | |
| 496 | auto const& protocol = protocolList_.at(igd->getProtocol()); |
| 497 | protocol->requestMappingAdd(*map); |
| 498 | } |
| 499 | |
| 500 | bool |
| 501 | UPnPContext::provisionNewMappings(PortType type, int portCount) |
| 502 | { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 503 | // JAMI_DBG("Provision %i new mappings of type [%s]", portCount, Mapping::getTypeStr(type)); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 504 | |
| 505 | assert(portCount > 0); |
| 506 | |
| 507 | while (portCount > 0) { |
| 508 | auto port = getAvailablePortNumber(type); |
| 509 | if (port > 0) { |
| 510 | // Found an available port number |
| 511 | portCount--; |
| 512 | Mapping map(type, port, port, true); |
| 513 | registerMapping(map); |
| 514 | } else { |
| 515 | // Very unlikely to get here! |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 516 | // JAMI_ERR("Can not find any available port to provision!"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 517 | return false; |
| 518 | } |
| 519 | } |
| 520 | |
| 521 | return true; |
| 522 | } |
| 523 | |
| 524 | bool |
| 525 | UPnPContext::deleteUnneededMappings(PortType type, int portCount) |
| 526 | { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 527 | // JAMI_DBG("Remove %i unneeded mapping of type [%s]", portCount, Mapping::getTypeStr(type)); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 528 | |
| 529 | assert(portCount > 0); |
| 530 | |
| 531 | CHECK_VALID_THREAD(); |
| 532 | |
| 533 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 534 | auto& mappingList = getMappingList(type); |
| 535 | |
| 536 | for (auto it = mappingList.begin(); it != mappingList.end();) { |
| 537 | auto map = it->second; |
| 538 | assert(map); |
| 539 | |
| 540 | if (not map->isAvailable()) { |
| 541 | it++; |
| 542 | continue; |
| 543 | } |
| 544 | |
| 545 | if (map->getState() == MappingState::OPEN and portCount > 0) { |
| 546 | // Close portCount mappings in "OPEN" state. |
| 547 | requestRemoveMapping(map); |
| 548 | it = unregisterMapping(it); |
| 549 | portCount--; |
| 550 | } else if (map->getState() != MappingState::OPEN) { |
| 551 | // If this methods is called, it means there are more open |
| 552 | // mappings than required. So, all mappings in a state other |
| 553 | // than "OPEN" state (typically in in-progress state) will |
| 554 | // be deleted as well. |
| 555 | it = unregisterMapping(it); |
| 556 | } else { |
| 557 | it++; |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | return true; |
| 562 | } |
| 563 | |
| 564 | void |
| 565 | UPnPContext::updatePreferredIgd() |
| 566 | { |
| 567 | CHECK_VALID_THREAD(); |
| 568 | |
| 569 | if (preferredIgd_ and preferredIgd_->isValid()) |
| 570 | return; |
| 571 | |
| 572 | // Reset and search for the best IGD. |
| 573 | preferredIgd_.reset(); |
| 574 | |
| 575 | for (auto const& [_, protocol] : protocolList_) { |
| 576 | if (protocol->isReady()) { |
| 577 | auto igdList = protocol->getIgdList(); |
| 578 | assert(not igdList.empty()); |
| 579 | auto const& igd = igdList.front(); |
| 580 | if (not igd->isValid()) |
| 581 | continue; |
| 582 | |
| 583 | // Prefer NAT-PMP over PUPNP. |
| 584 | if (preferredIgd_ and igd->getProtocol() != NatProtocolType::NAT_PMP) |
| 585 | continue; |
| 586 | |
| 587 | // Update. |
| 588 | preferredIgd_ = igd; |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | if (preferredIgd_ and preferredIgd_->isValid()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 593 | // JAMI_DBG("Preferred IGD updated to [%s] IGD [%s %s] ", |
| 594 | // preferredIgd_->getProtocolName(), |
| 595 | // preferredIgd_->getUID().c_str(), |
| 596 | // preferredIgd_->toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 597 | } |
| 598 | } |
| 599 | |
| 600 | std::shared_ptr<IGD> |
| 601 | UPnPContext::getPreferredIgd() const |
| 602 | { |
| 603 | CHECK_VALID_THREAD(); |
| 604 | |
| 605 | return preferredIgd_; |
| 606 | } |
| 607 | |
| 608 | void |
| 609 | UPnPContext::updateMappingList(bool async) |
| 610 | { |
| 611 | // Run async if requested. |
| 612 | if (async) { |
| 613 | runOnUpnpContextQueue([this] { updateMappingList(false); }); |
| 614 | return; |
| 615 | } |
| 616 | |
| 617 | CHECK_VALID_THREAD(); |
| 618 | |
| 619 | // Update the preferred IGD. |
| 620 | updatePreferredIgd(); |
| 621 | |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 622 | /*if (mappingListUpdateTimer_) { |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 623 | mappingListUpdateTimer_->cancel(); |
| 624 | mappingListUpdateTimer_ = {}; |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 625 | }*/ |
| 626 | mappingListUpdateTimer_.cancel(); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 627 | |
| 628 | // Skip if no controller registered. |
| 629 | if (controllerList_.empty()) |
| 630 | return; |
| 631 | |
| 632 | // Cancel the current timer (if any) and re-schedule. |
| 633 | std::shared_ptr<IGD> prefIgd = getPreferredIgd(); |
| 634 | if (not prefIgd) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 635 | // JAMI_DBG("UPNP/NAT-PMP enabled, but no valid IGDs available"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 636 | // No valid IGD. Nothing to do. |
| 637 | return; |
| 638 | } |
| 639 | |
Adrien Béraud | 25c30c4 | 2023-07-05 13:46:54 -0400 | [diff] [blame] | 640 | /*mappingListUpdateTimer_ = getScheduler()->scheduleIn([this] { updateMappingList(false); }, |
| 641 | MAP_UPDATE_INTERVAL);*/ |
| 642 | mappingListUpdateTimer_.expires_from_now(MAP_UPDATE_INTERVAL); |
| 643 | mappingListUpdateTimer_.async_wait([this](asio::error_code const& ec) { |
| 644 | if (ec != asio::error::operation_aborted) |
| 645 | updateMappingList(false); |
| 646 | }); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 647 | |
| 648 | // Process pending requests if any. |
| 649 | processPendingRequests(prefIgd); |
| 650 | |
| 651 | // Make new requests for mappings that failed and have |
| 652 | // the auto-update option enabled. |
| 653 | processMappingWithAutoUpdate(); |
| 654 | |
| 655 | PortType typeArray[2] = {PortType::TCP, PortType::UDP}; |
| 656 | |
| 657 | for (auto idx : {0, 1}) { |
| 658 | auto type = typeArray[idx]; |
| 659 | |
| 660 | MappingStatus status; |
| 661 | getMappingStatus(type, status); |
| 662 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 663 | // JAMI_DBG("Mapping status [%s] - overall %i: %i open (%i ready + %i in use), %i pending, %i " |
| 664 | // "in-progress, %i failed", |
| 665 | // Mapping::getTypeStr(type), |
| 666 | // status.sum(), |
| 667 | // status.openCount_, |
| 668 | // status.readyCount_, |
| 669 | // status.openCount_ - status.readyCount_, |
| 670 | // status.pendingCount_, |
| 671 | // status.inProgressCount_, |
| 672 | // status.failedCount_); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 673 | |
| 674 | if (status.failedCount_ > 0) { |
| 675 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 676 | auto const& mappingList = getMappingList(type); |
| 677 | for (auto const& [_, map] : mappingList) { |
| 678 | if (map->getState() == MappingState::FAILED) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 679 | // JAMI_DBG("Mapping status [%s] - Available [%s]", |
| 680 | // map->toString(true).c_str(), |
| 681 | // map->isAvailable() ? "YES" : "NO"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 682 | } |
| 683 | } |
| 684 | } |
| 685 | |
| 686 | int toRequestCount = (int) minOpenPortLimit_[idx] |
| 687 | - (int) (status.readyCount_ + status.inProgressCount_ |
| 688 | + status.pendingCount_); |
| 689 | |
| 690 | // Provision/release mappings accordingly. |
| 691 | if (toRequestCount > 0) { |
| 692 | // Take into account the request in-progress when making |
| 693 | // requests for new mappings. |
| 694 | provisionNewMappings(type, toRequestCount); |
| 695 | } else if (status.readyCount_ > maxOpenPortLimit_[idx]) { |
| 696 | deleteUnneededMappings(type, status.readyCount_ - maxOpenPortLimit_[idx]); |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | // Prune the mapping list if needed |
| 701 | if (protocolList_.at(NatProtocolType::PUPNP)->isReady()) { |
| 702 | #if HAVE_LIBNATPMP |
| 703 | // Dont perform if NAT-PMP is valid. |
| 704 | if (not protocolList_.at(NatProtocolType::NAT_PMP)->isReady()) |
| 705 | #endif |
| 706 | { |
| 707 | pruneMappingList(); |
| 708 | } |
| 709 | } |
| 710 | |
| 711 | #if HAVE_LIBNATPMP |
| 712 | // Renew nat-pmp allocations |
| 713 | if (protocolList_.at(NatProtocolType::NAT_PMP)->isReady()) |
| 714 | renewAllocations(); |
| 715 | #endif |
| 716 | } |
| 717 | |
| 718 | void |
| 719 | UPnPContext::pruneMappingList() |
| 720 | { |
| 721 | CHECK_VALID_THREAD(); |
| 722 | |
| 723 | MappingStatus status; |
| 724 | getMappingStatus(status); |
| 725 | |
| 726 | // Do not prune the list if there are pending/in-progress requests. |
| 727 | if (status.inProgressCount_ != 0 or status.pendingCount_ != 0) { |
| 728 | return; |
| 729 | } |
| 730 | |
| 731 | auto const& igd = getPreferredIgd(); |
| 732 | if (not igd or igd->getProtocol() != NatProtocolType::PUPNP) { |
| 733 | return; |
| 734 | } |
| 735 | auto protocol = protocolList_.at(NatProtocolType::PUPNP); |
| 736 | |
| 737 | auto remoteMapList = protocol->getMappingsListByDescr(igd, |
| 738 | Mapping::UPNP_MAPPING_DESCRIPTION_PREFIX); |
| 739 | if (remoteMapList.empty()) { |
| 740 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 741 | if (not getMappingList(PortType::TCP).empty() or getMappingList(PortType::TCP).empty()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 742 | // JAMI_WARN("We have provisionned mappings but the PUPNP IGD returned an empty list!"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 743 | } |
| 744 | } |
| 745 | |
| 746 | pruneUnMatchedMappings(igd, remoteMapList); |
| 747 | pruneUnTrackedMappings(igd, remoteMapList); |
| 748 | } |
| 749 | |
| 750 | void |
| 751 | UPnPContext::pruneUnMatchedMappings(const std::shared_ptr<IGD>& igd, |
| 752 | const std::map<Mapping::key_t, Mapping>& remoteMapList) |
| 753 | { |
| 754 | // Check/synchronize local mapping list with the list |
| 755 | // returned by the IGD. |
| 756 | |
| 757 | PortType types[2] {PortType::TCP, PortType::UDP}; |
| 758 | |
| 759 | for (auto& type : types) { |
| 760 | // Use a temporary list to avoid processing mappings while holding the lock. |
| 761 | std::list<Mapping::sharedPtr_t> toRemoveList; |
| 762 | { |
| 763 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 764 | auto& mappingList = getMappingList(type); |
| 765 | for (auto const& [_, map] : mappingList) { |
| 766 | // Only check mappings allocated by UPNP protocol. |
| 767 | if (map->getProtocol() != NatProtocolType::PUPNP) { |
| 768 | continue; |
| 769 | } |
| 770 | // Set mapping as failed if not found in the list |
| 771 | // returned by the IGD. |
| 772 | if (map->getState() == MappingState::OPEN |
| 773 | and remoteMapList.find(map->getMapKey()) == remoteMapList.end()) { |
| 774 | toRemoveList.emplace_back(map); |
| 775 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 776 | // JAMI_WARN("Mapping %s (IGD %s) marked as \"OPEN\" but not found in the " |
| 777 | // "remote list. Mark as failed!", |
| 778 | // map->toString().c_str(), |
| 779 | // igd->toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 780 | } |
| 781 | } |
| 782 | } |
| 783 | |
| 784 | for (auto const& map : toRemoveList) { |
| 785 | updateMappingState(map, MappingState::FAILED); |
| 786 | unregisterMapping(map); |
| 787 | } |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | void |
| 792 | UPnPContext::pruneUnTrackedMappings(const std::shared_ptr<IGD>& igd, |
| 793 | const std::map<Mapping::key_t, Mapping>& remoteMapList) |
| 794 | { |
| 795 | // Use a temporary list to avoid processing mappings while holding the lock. |
| 796 | std::list<Mapping> toRemoveList; |
| 797 | { |
| 798 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 799 | |
| 800 | for (auto const& [_, map] : remoteMapList) { |
| 801 | // Must has valid IGD pointer and use UPNP protocol. |
| 802 | assert(map.getIgd()); |
| 803 | assert(map.getIgd()->getProtocol() == NatProtocolType::PUPNP); |
| 804 | auto& mappingList = getMappingList(map.getType()); |
| 805 | auto it = mappingList.find(map.getMapKey()); |
| 806 | if (it == mappingList.end()) { |
| 807 | // Not present, request mapping remove. |
| 808 | toRemoveList.emplace_back(std::move(map)); |
| 809 | // Make only few remove requests at once. |
| 810 | if (toRemoveList.size() >= MAX_REQUEST_REMOVE_COUNT) |
| 811 | break; |
| 812 | } |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | // Remove un-tracked mappings. |
| 817 | auto protocol = protocolList_.at(NatProtocolType::PUPNP); |
| 818 | for (auto const& map : toRemoveList) { |
| 819 | protocol->requestMappingRemove(map); |
| 820 | } |
| 821 | } |
| 822 | |
| 823 | void |
| 824 | UPnPContext::pruneMappingsWithInvalidIgds(const std::shared_ptr<IGD>& igd) |
| 825 | { |
| 826 | CHECK_VALID_THREAD(); |
| 827 | |
| 828 | // Use temporary list to avoid holding the lock while |
| 829 | // processing the mapping list. |
| 830 | std::list<Mapping::sharedPtr_t> toRemoveList; |
| 831 | { |
| 832 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 833 | |
| 834 | PortType types[2] {PortType::TCP, PortType::UDP}; |
| 835 | for (auto& type : types) { |
| 836 | auto& mappingList = getMappingList(type); |
| 837 | for (auto const& [_, map] : mappingList) { |
| 838 | if (map->getIgd() == igd) |
| 839 | toRemoveList.emplace_back(map); |
| 840 | } |
| 841 | } |
| 842 | } |
| 843 | |
| 844 | for (auto const& map : toRemoveList) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 845 | // JAMI_DBG("Remove mapping %s (has an invalid IGD %s [%s])", |
| 846 | // map->toString().c_str(), |
| 847 | // igd->toString().c_str(), |
| 848 | // igd->getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 849 | updateMappingState(map, MappingState::FAILED); |
| 850 | unregisterMapping(map); |
| 851 | } |
| 852 | } |
| 853 | |
| 854 | void |
| 855 | UPnPContext::processPendingRequests(const std::shared_ptr<IGD>& igd) |
| 856 | { |
| 857 | // This list holds the mappings to be requested. This is |
| 858 | // needed to avoid performing the requests while holding |
| 859 | // the lock. |
| 860 | std::list<Mapping::sharedPtr_t> requestsList; |
| 861 | |
| 862 | // Populate the list of requests to perform. |
| 863 | { |
| 864 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 865 | PortType typeArray[2] {PortType::TCP, PortType::UDP}; |
| 866 | |
| 867 | for (auto type : typeArray) { |
| 868 | auto& mappingList = getMappingList(type); |
| 869 | for (auto& [_, map] : mappingList) { |
| 870 | if (map->getState() == MappingState::PENDING) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 871 | // JAMI_DBG("Send pending request for mapping %s to IGD %s", |
| 872 | // map->toString().c_str(), |
| 873 | // igd->toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 874 | requestsList.emplace_back(map); |
| 875 | } |
| 876 | } |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | // Process the pending requests. |
| 881 | for (auto const& map : requestsList) { |
| 882 | requestMapping(map); |
| 883 | } |
| 884 | } |
| 885 | |
| 886 | void |
| 887 | UPnPContext::processMappingWithAutoUpdate() |
| 888 | { |
| 889 | // This list holds the mappings to be requested. This is |
| 890 | // needed to avoid performing the requests while holding |
| 891 | // the lock. |
| 892 | std::list<Mapping::sharedPtr_t> requestsList; |
| 893 | |
| 894 | // Populate the list of requests for mappings with auto-update enabled. |
| 895 | { |
| 896 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 897 | PortType typeArray[2] {PortType::TCP, PortType::UDP}; |
| 898 | |
| 899 | for (auto type : typeArray) { |
| 900 | auto& mappingList = getMappingList(type); |
| 901 | for (auto const& [_, map] : mappingList) { |
| 902 | if (map->getState() == MappingState::FAILED and map->getAutoUpdate()) { |
| 903 | requestsList.emplace_back(map); |
| 904 | } |
| 905 | } |
| 906 | } |
| 907 | } |
| 908 | |
| 909 | for (auto const& oldMap : requestsList) { |
| 910 | // Request a new mapping if auto-update is enabled. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 911 | // JAMI_DBG("Mapping %s has auto-update enabled, a new mapping will be requested", |
| 912 | // oldMap->toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 913 | |
| 914 | // Reserve a new mapping. |
| 915 | Mapping newMapping(oldMap->getType()); |
| 916 | newMapping.enableAutoUpdate(true); |
| 917 | newMapping.setNotifyCallback(oldMap->getNotifyCallback()); |
| 918 | |
| 919 | auto const& mapPtr = reserveMapping(newMapping); |
| 920 | assert(mapPtr); |
| 921 | |
| 922 | // Release the old one. |
| 923 | oldMap->setAvailable(true); |
| 924 | oldMap->enableAutoUpdate(false); |
| 925 | oldMap->setNotifyCallback(nullptr); |
| 926 | unregisterMapping(oldMap); |
| 927 | } |
| 928 | } |
| 929 | |
| 930 | void |
| 931 | UPnPContext::onIgdUpdated(const std::shared_ptr<IGD>& igd, UpnpIgdEvent event) |
| 932 | { |
| 933 | assert(igd); |
| 934 | |
| 935 | if (not isValidThread()) { |
| 936 | runOnUpnpContextQueue([this, igd, event] { onIgdUpdated(igd, event); }); |
| 937 | return; |
| 938 | } |
| 939 | |
| 940 | // Reset to start search for a new best IGD. |
| 941 | preferredIgd_.reset(); |
| 942 | |
| 943 | char const* IgdState = event == UpnpIgdEvent::ADDED ? "ADDED" |
| 944 | : event == UpnpIgdEvent::REMOVED ? "REMOVED" |
| 945 | : "INVALID"; |
| 946 | |
| 947 | auto const& igdLocalAddr = igd->getLocalIp(); |
| 948 | auto protocolName = igd->getProtocolName(); |
| 949 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 950 | // JAMI_DBG("New event for IGD [%s %s] [%s]: [%s]", |
| 951 | // igd->getUID().c_str(), |
| 952 | // igd->toString().c_str(), |
| 953 | // protocolName, |
| 954 | // IgdState); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 955 | |
| 956 | // Check if the IGD has valid addresses. |
| 957 | if (not igdLocalAddr) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 958 | // JAMI_WARN("[%s] IGD has an invalid local address", protocolName); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 959 | return; |
| 960 | } |
| 961 | |
| 962 | if (not igd->getPublicIp()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 963 | // JAMI_WARN("[%s] IGD has an invalid public address", protocolName); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 964 | return; |
| 965 | } |
| 966 | |
| 967 | if (knownPublicAddress_ and igd->getPublicIp() != knownPublicAddress_) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 968 | // JAMI_WARN("[%s] IGD external address [%s] does not match known public address [%s]." |
| 969 | // " The mapped addresses might not be reachable", |
| 970 | // protocolName, |
| 971 | // igd->getPublicIp().toString().c_str(), |
| 972 | // knownPublicAddress_.toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 973 | } |
| 974 | |
| 975 | // The IGD was removed or is invalid. |
| 976 | if (event == UpnpIgdEvent::REMOVED or event == UpnpIgdEvent::INVALID_STATE) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 977 | // JAMI_WARN("State of IGD [%s %s] [%s] changed to [%s]. Pruning the mapping list", |
| 978 | // igd->getUID().c_str(), |
| 979 | // igd->toString().c_str(), |
| 980 | // protocolName, |
| 981 | // IgdState); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 982 | |
| 983 | pruneMappingsWithInvalidIgds(igd); |
| 984 | |
| 985 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 986 | validIgdList_.erase(igd); |
| 987 | return; |
| 988 | } |
| 989 | |
| 990 | // Update the IGD list. |
| 991 | { |
| 992 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 993 | auto ret = validIgdList_.emplace(igd); |
| 994 | if (ret.second) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 995 | // JAMI_DBG("IGD [%s] on address %s was added. Will process any pending requests", |
| 996 | // protocolName, |
| 997 | // igdLocalAddr.toString(true, true).c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 998 | } else { |
| 999 | // Already in the list. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1000 | // JAMI_ERR("IGD [%s] on address %s already in the list", |
| 1001 | // protocolName, |
| 1002 | // igdLocalAddr.toString(true, true).c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1003 | return; |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | // Update the provisionned mappings. |
| 1008 | updateMappingList(false); |
| 1009 | } |
| 1010 | |
| 1011 | void |
| 1012 | UPnPContext::onMappingAdded(const std::shared_ptr<IGD>& igd, const Mapping& mapRes) |
| 1013 | { |
| 1014 | CHECK_VALID_THREAD(); |
| 1015 | |
| 1016 | // Check if we have a pending request for this response. |
| 1017 | auto map = getMappingWithKey(mapRes.getMapKey()); |
| 1018 | if (not map) { |
| 1019 | // We may receive a response for a canceled request. Just ignore it. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1020 | // JAMI_DBG("Response for mapping %s [IGD %s] [%s] does not have a local match", |
| 1021 | // mapRes.toString().c_str(), |
| 1022 | // igd->toString().c_str(), |
| 1023 | // mapRes.getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1024 | return; |
| 1025 | } |
| 1026 | |
| 1027 | // The mapping request is new and successful. Update. |
| 1028 | map->setIgd(igd); |
| 1029 | map->setInternalAddress(mapRes.getInternalAddress()); |
| 1030 | map->setExternalPort(mapRes.getExternalPort()); |
| 1031 | |
| 1032 | // Update the state and report to the owner. |
| 1033 | updateMappingState(map, MappingState::OPEN); |
| 1034 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1035 | // JAMI_DBG("Mapping %s (on IGD %s [%s]) successfully performed", |
| 1036 | // map->toString().c_str(), |
| 1037 | // igd->toString().c_str(), |
| 1038 | // map->getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1039 | |
| 1040 | // Call setValid() to reset the errors counter. We need |
| 1041 | // to reset the counter on each successful response. |
| 1042 | igd->setValid(true); |
| 1043 | } |
| 1044 | |
| 1045 | #if HAVE_LIBNATPMP |
| 1046 | void |
| 1047 | UPnPContext::onMappingRenewed(const std::shared_ptr<IGD>& igd, const Mapping& map) |
| 1048 | { |
| 1049 | auto mapPtr = getMappingWithKey(map.getMapKey()); |
| 1050 | |
| 1051 | if (not mapPtr) { |
| 1052 | // We may receive a notification for a canceled request. Ignore it. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1053 | // JAMI_WARN("Renewed mapping %s from IGD %s [%s] does not have a match in local list", |
| 1054 | // map.toString().c_str(), |
| 1055 | // igd->toString().c_str(), |
| 1056 | // map.getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1057 | return; |
| 1058 | } |
| 1059 | if (mapPtr->getProtocol() != NatProtocolType::NAT_PMP or not mapPtr->isValid() |
| 1060 | or mapPtr->getState() != MappingState::OPEN) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1061 | // JAMI_WARN("Renewed mapping %s from IGD %s [%s] is in unexpected state", |
| 1062 | // mapPtr->toString().c_str(), |
| 1063 | // igd->toString().c_str(), |
| 1064 | // mapPtr->getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1065 | return; |
| 1066 | } |
| 1067 | |
| 1068 | mapPtr->setRenewalTime(map.getRenewalTime()); |
| 1069 | } |
| 1070 | #endif |
| 1071 | |
| 1072 | void |
| 1073 | UPnPContext::requestRemoveMapping(const Mapping::sharedPtr_t& map) |
| 1074 | { |
| 1075 | CHECK_VALID_THREAD(); |
| 1076 | |
| 1077 | if (not map) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1078 | // JAMI_ERR("Mapping shared pointer is null!"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1079 | return; |
| 1080 | } |
| 1081 | |
| 1082 | if (not map->isValid()) { |
| 1083 | // Silently ignore if the mapping is invalid |
| 1084 | return; |
| 1085 | } |
| 1086 | |
| 1087 | auto protocol = protocolList_.at(map->getIgd()->getProtocol()); |
| 1088 | protocol->requestMappingRemove(*map); |
| 1089 | } |
| 1090 | |
| 1091 | void |
| 1092 | UPnPContext::deleteAllMappings(PortType type) |
| 1093 | { |
| 1094 | if (not isValidThread()) { |
| 1095 | runOnUpnpContextQueue([this, type] { deleteAllMappings(type); }); |
| 1096 | return; |
| 1097 | } |
| 1098 | |
| 1099 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 1100 | auto& mappingList = getMappingList(type); |
| 1101 | |
| 1102 | for (auto const& [_, map] : mappingList) { |
| 1103 | requestRemoveMapping(map); |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | void |
| 1108 | UPnPContext::onMappingRemoved(const std::shared_ptr<IGD>& igd, const Mapping& mapRes) |
| 1109 | { |
| 1110 | if (not mapRes.isValid()) |
| 1111 | return; |
| 1112 | |
| 1113 | if (not isValidThread()) { |
| 1114 | runOnUpnpContextQueue([this, igd, mapRes] { onMappingRemoved(igd, mapRes); }); |
| 1115 | return; |
| 1116 | } |
| 1117 | |
| 1118 | auto map = getMappingWithKey(mapRes.getMapKey()); |
| 1119 | // Notify the listener. |
| 1120 | if (map and map->getNotifyCallback()) |
| 1121 | map->getNotifyCallback()(map); |
| 1122 | } |
| 1123 | |
| 1124 | Mapping::sharedPtr_t |
| 1125 | UPnPContext::registerMapping(Mapping& map) |
| 1126 | { |
| 1127 | if (map.getExternalPort() == 0) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1128 | // JAMI_DBG("Port number not set. Will set a random port number"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1129 | auto port = getAvailablePortNumber(map.getType()); |
| 1130 | map.setExternalPort(port); |
| 1131 | map.setInternalPort(port); |
| 1132 | } |
| 1133 | |
| 1134 | // Newly added mapping must be in pending state by default. |
| 1135 | map.setState(MappingState::PENDING); |
| 1136 | |
| 1137 | Mapping::sharedPtr_t mapPtr; |
| 1138 | |
| 1139 | { |
| 1140 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 1141 | auto& mappingList = getMappingList(map.getType()); |
| 1142 | |
| 1143 | auto ret = mappingList.emplace(map.getMapKey(), std::make_shared<Mapping>(map)); |
| 1144 | if (not ret.second) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1145 | // JAMI_WARN("Mapping request for %s already added!", map.toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1146 | return {}; |
| 1147 | } |
| 1148 | mapPtr = ret.first->second; |
| 1149 | assert(mapPtr); |
| 1150 | } |
| 1151 | |
| 1152 | // No available IGD. The pending mapping requests will be processed |
| 1153 | // when a IGD becomes available (in onIgdAdded() method). |
| 1154 | if (not isReady()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1155 | // JAMI_WARN("No IGD available. Mapping will be requested when an IGD becomes available"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1156 | } else { |
| 1157 | requestMapping(mapPtr); |
| 1158 | } |
| 1159 | |
| 1160 | return mapPtr; |
| 1161 | } |
| 1162 | |
| 1163 | std::map<Mapping::key_t, Mapping::sharedPtr_t>::iterator |
| 1164 | UPnPContext::unregisterMapping(std::map<Mapping::key_t, Mapping::sharedPtr_t>::iterator it) |
| 1165 | { |
| 1166 | assert(it->second); |
| 1167 | |
| 1168 | CHECK_VALID_THREAD(); |
| 1169 | auto descr = it->second->toString(); |
| 1170 | auto& mappingList = getMappingList(it->second->getType()); |
| 1171 | auto ret = mappingList.erase(it); |
| 1172 | |
| 1173 | return ret; |
| 1174 | } |
| 1175 | |
| 1176 | void |
| 1177 | UPnPContext::unregisterMapping(const Mapping::sharedPtr_t& map) |
| 1178 | { |
| 1179 | CHECK_VALID_THREAD(); |
| 1180 | |
| 1181 | if (not map) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1182 | // JAMI_ERR("Mapping pointer is null"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1183 | return; |
| 1184 | } |
| 1185 | |
| 1186 | if (map->getAutoUpdate()) { |
| 1187 | // Dont unregister mappings with auto-update enabled. |
| 1188 | return; |
| 1189 | } |
| 1190 | auto& mappingList = getMappingList(map->getType()); |
| 1191 | |
| 1192 | if (mappingList.erase(map->getMapKey()) == 1) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1193 | // JAMI_DBG("Unregistered mapping %s", map->toString().c_str()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1194 | } else { |
| 1195 | // The mapping may already be un-registered. Just ignore it. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1196 | // JAMI_DBG("Mapping %s [%s] does not have a local match", |
| 1197 | // map->toString().c_str(), |
| 1198 | // map->getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1199 | } |
| 1200 | } |
| 1201 | |
| 1202 | std::map<Mapping::key_t, Mapping::sharedPtr_t>& |
| 1203 | UPnPContext::getMappingList(PortType type) |
| 1204 | { |
| 1205 | unsigned typeIdx = type == PortType::TCP ? 0 : 1; |
| 1206 | return mappingList_[typeIdx]; |
| 1207 | } |
| 1208 | |
| 1209 | Mapping::sharedPtr_t |
| 1210 | UPnPContext::getMappingWithKey(Mapping::key_t key) |
| 1211 | { |
| 1212 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 1213 | auto const& mappingList = getMappingList(Mapping::getTypeFromMapKey(key)); |
| 1214 | auto it = mappingList.find(key); |
| 1215 | if (it == mappingList.end()) |
| 1216 | return nullptr; |
| 1217 | return it->second; |
| 1218 | } |
| 1219 | |
| 1220 | void |
| 1221 | UPnPContext::getMappingStatus(PortType type, MappingStatus& status) |
| 1222 | { |
| 1223 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 1224 | auto& mappingList = getMappingList(type); |
| 1225 | |
| 1226 | for (auto const& [_, map] : mappingList) { |
| 1227 | switch (map->getState()) { |
| 1228 | case MappingState::PENDING: { |
| 1229 | status.pendingCount_++; |
| 1230 | break; |
| 1231 | } |
| 1232 | case MappingState::IN_PROGRESS: { |
| 1233 | status.inProgressCount_++; |
| 1234 | break; |
| 1235 | } |
| 1236 | case MappingState::FAILED: { |
| 1237 | status.failedCount_++; |
| 1238 | break; |
| 1239 | } |
| 1240 | case MappingState::OPEN: { |
| 1241 | status.openCount_++; |
| 1242 | if (map->isAvailable()) |
| 1243 | status.readyCount_++; |
| 1244 | break; |
| 1245 | } |
| 1246 | |
| 1247 | default: |
| 1248 | // Must not get here. |
| 1249 | assert(false); |
| 1250 | break; |
| 1251 | } |
| 1252 | } |
| 1253 | } |
| 1254 | |
| 1255 | void |
| 1256 | UPnPContext::getMappingStatus(MappingStatus& status) |
| 1257 | { |
| 1258 | getMappingStatus(PortType::TCP, status); |
| 1259 | getMappingStatus(PortType::UDP, status); |
| 1260 | } |
| 1261 | |
| 1262 | void |
| 1263 | UPnPContext::onMappingRequestFailed(const Mapping& mapRes) |
| 1264 | { |
| 1265 | CHECK_VALID_THREAD(); |
| 1266 | |
| 1267 | auto const& map = getMappingWithKey(mapRes.getMapKey()); |
| 1268 | if (not map) { |
| 1269 | // We may receive a response for a removed request. Just ignore it. |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1270 | // JAMI_DBG("Mapping %s [IGD %s] does not have a local match", |
| 1271 | // mapRes.toString().c_str(), |
| 1272 | // mapRes.getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1273 | return; |
| 1274 | } |
| 1275 | |
| 1276 | auto igd = map->getIgd(); |
| 1277 | if (not igd) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1278 | // JAMI_ERR("IGD pointer is null"); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1279 | return; |
| 1280 | } |
| 1281 | |
| 1282 | updateMappingState(map, MappingState::FAILED); |
| 1283 | unregisterMapping(map); |
| 1284 | |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1285 | // JAMI_WARN("Mapping request for %s failed on IGD %s [%s]", |
| 1286 | // map->toString().c_str(), |
| 1287 | // igd->toString().c_str(), |
| 1288 | // igd->getProtocolName()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1289 | } |
| 1290 | |
| 1291 | void |
| 1292 | UPnPContext::updateMappingState(const Mapping::sharedPtr_t& map, MappingState newState, bool notify) |
| 1293 | { |
| 1294 | CHECK_VALID_THREAD(); |
| 1295 | |
| 1296 | assert(map); |
| 1297 | |
| 1298 | // Ignore if the state did not change. |
| 1299 | if (newState == map->getState()) { |
Morteza Namvar | 5f63952 | 2023-07-04 17:08:58 -0400 | [diff] [blame] | 1300 | // JAMI_DBG("Mapping %s already in state %s", map->toString().c_str(), map->getStateStr()); |
Adrien Béraud | 612b55b | 2023-05-29 10:42:04 -0400 | [diff] [blame] | 1301 | return; |
| 1302 | } |
| 1303 | |
| 1304 | // Update the state. |
| 1305 | map->setState(newState); |
| 1306 | |
| 1307 | // Notify the listener if set. |
| 1308 | if (notify and map->getNotifyCallback()) |
| 1309 | map->getNotifyCallback()(map); |
| 1310 | } |
| 1311 | |
| 1312 | #if HAVE_LIBNATPMP |
| 1313 | void |
| 1314 | UPnPContext::renewAllocations() |
| 1315 | { |
| 1316 | CHECK_VALID_THREAD(); |
| 1317 | |
| 1318 | // Check if the we have valid PMP IGD. |
| 1319 | auto pmpProto = protocolList_.at(NatProtocolType::NAT_PMP); |
| 1320 | |
| 1321 | auto now = sys_clock::now(); |
| 1322 | std::vector<Mapping::sharedPtr_t> toRenew; |
| 1323 | |
| 1324 | for (auto type : {PortType::TCP, PortType::UDP}) { |
| 1325 | std::lock_guard<std::mutex> lock(mappingMutex_); |
| 1326 | auto mappingList = getMappingList(type); |
| 1327 | for (auto const& [_, map] : mappingList) { |
| 1328 | if (not map->isValid()) |
| 1329 | continue; |
| 1330 | if (map->getProtocol() != NatProtocolType::NAT_PMP) |
| 1331 | continue; |
| 1332 | if (map->getState() != MappingState::OPEN) |
| 1333 | continue; |
| 1334 | if (now < map->getRenewalTime()) |
| 1335 | continue; |
| 1336 | |
| 1337 | toRenew.emplace_back(map); |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | // Quit if there are no mapping to renew |
| 1342 | if (toRenew.empty()) |
| 1343 | return; |
| 1344 | |
| 1345 | for (auto const& map : toRenew) { |
| 1346 | pmpProto->requestMappingRenew(*map); |
| 1347 | } |
| 1348 | } |
| 1349 | #endif |
| 1350 | |
| 1351 | } // namespace upnp |
| 1352 | } // namespace jami |