675513b96a
This CL has been generated with the following script: for m in PLOG \ LOG_TAG \ LOG_GLEM \ LOG_GLE_EX \ LOG_GLE \ LAST_SYSTEM_ERROR \ LOG_ERRNO_EX \ LOG_ERRNO \ LOG_ERR_EX \ LOG_ERR \ LOG_V \ LOG_F \ LOG_T_F \ LOG_E \ LOG_T \ LOG_CHECK_LEVEL_V \ LOG_CHECK_LEVEL \ LOG do git grep -l $m | xargs sed -i "s,\b$m\b,RTC_$m,g" done git checkout rtc_base/logging.h git cl format Bug: webrtc:8452 Change-Id: I1a53ef3e0a5ef6e244e62b2e012b864914784600 Reviewed-on: https://webrtc-review.googlesource.com/21325 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20617}
100 lines
3.1 KiB
C++
100 lines
3.1 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "p2p/base/stunserver.h"
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#include "rtc_base/bytebuffer.h"
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#include "rtc_base/logging.h"
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namespace cricket {
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StunServer::StunServer(rtc::AsyncUDPSocket* socket) : socket_(socket) {
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socket_->SignalReadPacket.connect(this, &StunServer::OnPacket);
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}
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StunServer::~StunServer() {
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socket_->SignalReadPacket.disconnect(this);
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}
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void StunServer::OnPacket(
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rtc::AsyncPacketSocket* socket, const char* buf, size_t size,
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const rtc::SocketAddress& remote_addr,
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const rtc::PacketTime& packet_time) {
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// Parse the STUN message; eat any messages that fail to parse.
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rtc::ByteBufferReader bbuf(buf, size);
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StunMessage msg;
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if (!msg.Read(&bbuf)) {
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return;
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}
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// TODO: If unknown non-optional (<= 0x7fff) attributes are found, send a
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// 420 "Unknown Attribute" response.
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// Send the message to the appropriate handler function.
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switch (msg.type()) {
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case STUN_BINDING_REQUEST:
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OnBindingRequest(&msg, remote_addr);
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break;
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default:
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SendErrorResponse(msg, remote_addr, 600, "Operation Not Supported");
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}
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}
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void StunServer::OnBindingRequest(
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StunMessage* msg, const rtc::SocketAddress& remote_addr) {
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StunMessage response;
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GetStunBindReqponse(msg, remote_addr, &response);
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SendResponse(response, remote_addr);
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}
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void StunServer::SendErrorResponse(
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const StunMessage& msg, const rtc::SocketAddress& addr,
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int error_code, const char* error_desc) {
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StunMessage err_msg;
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err_msg.SetType(GetStunErrorResponseType(msg.type()));
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err_msg.SetTransactionID(msg.transaction_id());
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auto err_code = StunAttribute::CreateErrorCode();
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err_code->SetCode(error_code);
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err_code->SetReason(error_desc);
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err_msg.AddAttribute(std::move(err_code));
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SendResponse(err_msg, addr);
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}
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void StunServer::SendResponse(
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const StunMessage& msg, const rtc::SocketAddress& addr) {
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rtc::ByteBufferWriter buf;
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msg.Write(&buf);
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rtc::PacketOptions options;
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if (socket_->SendTo(buf.Data(), buf.Length(), addr, options) < 0)
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RTC_LOG_ERR(LS_ERROR) << "sendto";
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}
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void StunServer::GetStunBindReqponse(StunMessage* request,
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const rtc::SocketAddress& remote_addr,
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StunMessage* response) const {
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response->SetType(STUN_BINDING_RESPONSE);
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response->SetTransactionID(request->transaction_id());
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// Tell the user the address that we received their request from.
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std::unique_ptr<StunAddressAttribute> mapped_addr;
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if (!request->IsLegacy()) {
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mapped_addr = StunAttribute::CreateAddress(STUN_ATTR_MAPPED_ADDRESS);
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} else {
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mapped_addr = StunAttribute::CreateXorAddress(STUN_ATTR_XOR_MAPPED_ADDRESS);
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}
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mapped_addr->SetAddress(remote_addr);
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response->AddAttribute(std::move(mapped_addr));
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}
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} // namespace cricket
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