1f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch/* 2f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * libjingle 3f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * Copyright 2004--2005, Google Inc. 4f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 5f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * Redistribution and use in source and binary forms, with or without 6f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * modification, are permitted provided that the following conditions are met: 7f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 8f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 1. Redistributions of source code must retain the above copyright notice, 9f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * this list of conditions and the following disclaimer. 10f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 2. Redistributions in binary form must reproduce the above copyright notice, 11f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * this list of conditions and the following disclaimer in the documentation 12f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * and/or other materials provided with the distribution. 13f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 3. The name of the author may not be used to endorse or promote products 14f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * derived from this software without specific prior written permission. 15f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 16f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch */ 27f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 28f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#include "talk/p2p/base/stunrequest.h" 29f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 30f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#include "talk/base/common.h" 31f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#include "talk/base/helpers.h" 32f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#include "talk/base/logging.h" 33f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 34f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochnamespace cricket { 35f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 36f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochconst uint32 MSG_STUN_SEND = 1; 37f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 38f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochconst int MAX_SENDS = 9; 39f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochconst int DELAY_UNIT = 100; // 100 milliseconds 40f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochconst int DELAY_MAX_FACTOR = 16; 41f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 42f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen MurdochStunRequestManager::StunRequestManager(talk_base::Thread* thread) 43f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch : thread_(thread) { 44f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 45f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 46f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen MurdochStunRequestManager::~StunRequestManager() { 47f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch while (requests_.begin() != requests_.end()) { 48f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch StunRequest *request = requests_.begin()->second; 49f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch requests_.erase(requests_.begin()); 50f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch delete request; 51f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } 52f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 53f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 54f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochvoid StunRequestManager::Send(StunRequest* request) { 55f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch SendDelayed(request, 0); 56f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 57f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 58f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochvoid StunRequestManager::SendDelayed(StunRequest* request, int delay) { 59f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch request->set_manager(this); 60f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(requests_.find(request->id()) == requests_.end()); 61f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch request->Construct(); 62f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch requests_[request->id()] = request; 63f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch thread_->PostDelayed(delay, request, MSG_STUN_SEND, NULL); 64f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 65f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 66f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochvoid StunRequestManager::Remove(StunRequest* request) { 67f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(request->manager() == this); 68f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch RequestMap::iterator iter = requests_.find(request->id()); 69f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (iter != requests_.end()) { 70f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(iter->second == request); 71f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch requests_.erase(iter); 72f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch thread_->Clear(request); 73f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } 74f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 75f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 76f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochvoid StunRequestManager::Clear() { 77f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch std::vector<StunRequest*> requests; 78f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch for (RequestMap::iterator i = requests_.begin(); i != requests_.end(); ++i) 79f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch requests.push_back(i->second); 80f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 81f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch for (uint32 i = 0; i < requests.size(); ++i) 82f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch Remove(requests[i]); 83f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 84f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 85f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochbool StunRequestManager::CheckResponse(StunMessage* msg) { 86f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch RequestMap::iterator iter = requests_.find(msg->transaction_id()); 87f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (iter == requests_.end()) 88f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return false; 89f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 90f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch StunRequest* request = iter->second; 91f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (msg->type() == GetStunResponseType(request->type())) { 92f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch request->OnResponse(msg); 93f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } else if (msg->type() == GetStunErrorResponseType(request->type())) { 94f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch request->OnErrorResponse(msg); 95f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } else { 96f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch LOG(LERROR) << "Received response with wrong type: " << msg->type() 97f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch << " (expecting " << GetStunResponseType(request->type()) << ")"; 98f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return false; 99f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } 100f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 101f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch delete request; 102f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return true; 103f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 104f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 105f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochbool StunRequestManager::CheckResponse(const char* data, size_t size) { 106f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch // Check the appropriate bytes of the stream to see if they match the 107f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch // transaction ID of a response we are expecting. 108f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 109f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (size < 20) 110f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return false; 111f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 112f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch std::string id; 113f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch id.append(data + 4, 16); 114f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 115f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch RequestMap::iterator iter = requests_.find(id); 116f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (iter == requests_.end()) 117f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return false; 118f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 119f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch // Parse the STUN message and continue processing as usual. 120f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 121f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch talk_base::ByteBuffer buf(data, size); 122f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch StunMessage msg; 123f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (!msg.Read(&buf)) 124f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return false; 125f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 126f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return CheckResponse(&msg); 127f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 128f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 129f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen MurdochStunRequest::StunRequest() 130f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch : count_(0), timeout_(false), manager_(0), 131f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch id_(talk_base::CreateRandomString(16)), msg_(new StunMessage()), 132f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch tstamp_(0) { 133f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch msg_->SetTransactionID(id_); 134f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 135f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 136f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen MurdochStunRequest::StunRequest(StunMessage* request) 137f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch : count_(0), timeout_(false), manager_(0), 138f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch id_(request->transaction_id()), msg_(request) { 139f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 140f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 141f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen MurdochStunRequest::~StunRequest() { 142f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(manager_ != NULL); 143f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (manager_) { 144f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch manager_->Remove(this); 145f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch manager_->thread_->Clear(this); 146f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } 147f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch delete msg_; 148f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 149f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 150f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochvoid StunRequest::Construct() { 151f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (msg_->type() == 0) { 152f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch Prepare(msg_); 153f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(msg_->transaction_id() == id_); 154f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(msg_->type() != 0); 155f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } 156f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 157f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 1583345a6884c488ff3a535c2c9acdd33d74b37e311Iain MerrickStunMessageType StunRequest::type() { 159f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(msg_ != NULL); 160f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return msg_->type(); 161f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 162f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 163f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochvoid StunRequest::set_manager(StunRequestManager* manager) { 164f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(!manager_); 165f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch manager_ = manager; 166f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 167f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 168f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochvoid StunRequest::OnMessage(talk_base::Message* pmsg) { 169f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(manager_ != NULL); 170f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ASSERT(pmsg->message_id == MSG_STUN_SEND); 171f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 172f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (timeout_) { 173f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch OnTimeout(); 174f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch delete this; 175f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return; 176f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch } 177f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 178f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch tstamp_ = talk_base::Time(); 179f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 180f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch talk_base::ByteBuffer buf; 181f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch msg_->Write(&buf); 182f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch manager_->SignalSendPacket(buf.Data(), buf.Length(), this); 183f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 184f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch int delay = GetNextDelay(); 185f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch manager_->thread_->PostDelayed(delay, this, MSG_STUN_SEND, NULL); 186f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 187f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 188f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochuint32 StunRequest::Elapsed() const { 189f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return talk_base::TimeSince(tstamp_); 190f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 191f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 192f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochint StunRequest::GetNextDelay() { 193f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch int delay = DELAY_UNIT * talk_base::_min(1 << count_, DELAY_MAX_FACTOR); 194f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch count_ += 1; 195f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch if (count_ == MAX_SENDS) 196f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch timeout_ = true; 197f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch return delay; 198f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} 199f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 200f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} // namespace cricket 201