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Unified Diff: net/udp/udp_socket_win.cc

Issue 2508593002: net: move udp directory into socket (Closed)
Patch Set: revert sys/socket.h change Created 4 years, 1 month ago
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Index: net/udp/udp_socket_win.cc
diff --git a/net/udp/udp_socket_win.cc b/net/udp/udp_socket_win.cc
deleted file mode 100644
index 2f759d834594ef82b7bc1055e76ceae17b7b5689..0000000000000000000000000000000000000000
--- a/net/udp/udp_socket_win.cc
+++ /dev/null
@@ -1,1201 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/udp/udp_socket_win.h"
-
-#include <mstcpip.h>
-
-#include "base/callback.h"
-#include "base/lazy_instance.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/message_loop/message_loop.h"
-#include "base/metrics/histogram_macros.h"
-#include "base/metrics/sparse_histogram.h"
-#include "base/rand_util.h"
-#include "net/base/io_buffer.h"
-#include "net/base/ip_address.h"
-#include "net/base/ip_endpoint.h"
-#include "net/base/net_errors.h"
-#include "net/base/network_activity_monitor.h"
-#include "net/base/network_change_notifier.h"
-#include "net/base/sockaddr_storage.h"
-#include "net/base/winsock_init.h"
-#include "net/base/winsock_util.h"
-#include "net/log/net_log.h"
-#include "net/log/net_log_event_type.h"
-#include "net/log/net_log_source.h"
-#include "net/log/net_log_source_type.h"
-#include "net/socket/socket_descriptor.h"
-#include "net/udp/udp_net_log_parameters.h"
-
-namespace {
-
-const int kBindRetries = 10;
-const int kPortStart = 1024;
-const int kPortEnd = 65535;
-
-} // namespace
-
-namespace net {
-
-// This class encapsulates all the state that has to be preserved as long as
-// there is a network IO operation in progress. If the owner UDPSocketWin
-// is destroyed while an operation is in progress, the Core is detached and it
-// lives until the operation completes and the OS doesn't reference any resource
-// declared on this class anymore.
-class UDPSocketWin::Core : public base::RefCounted<Core> {
- public:
- explicit Core(UDPSocketWin* socket);
-
- // Start watching for the end of a read or write operation.
- void WatchForRead();
- void WatchForWrite();
-
- // The UDPSocketWin is going away.
- void Detach() { socket_ = NULL; }
-
- // The separate OVERLAPPED variables for asynchronous operation.
- OVERLAPPED read_overlapped_;
- OVERLAPPED write_overlapped_;
-
- // The buffers used in Read() and Write().
- scoped_refptr<IOBuffer> read_iobuffer_;
- scoped_refptr<IOBuffer> write_iobuffer_;
-
- // The address storage passed to WSARecvFrom().
- SockaddrStorage recv_addr_storage_;
-
- private:
- friend class base::RefCounted<Core>;
-
- class ReadDelegate : public base::win::ObjectWatcher::Delegate {
- public:
- explicit ReadDelegate(Core* core) : core_(core) {}
- ~ReadDelegate() override {}
-
- // base::ObjectWatcher::Delegate methods:
- void OnObjectSignaled(HANDLE object) override;
-
- private:
- Core* const core_;
- };
-
- class WriteDelegate : public base::win::ObjectWatcher::Delegate {
- public:
- explicit WriteDelegate(Core* core) : core_(core) {}
- ~WriteDelegate() override {}
-
- // base::ObjectWatcher::Delegate methods:
- void OnObjectSignaled(HANDLE object) override;
-
- private:
- Core* const core_;
- };
-
- ~Core();
-
- // The socket that created this object.
- UDPSocketWin* socket_;
-
- // |reader_| handles the signals from |read_watcher_|.
- ReadDelegate reader_;
- // |writer_| handles the signals from |write_watcher_|.
- WriteDelegate writer_;
-
- // |read_watcher_| watches for events from Read().
- base::win::ObjectWatcher read_watcher_;
- // |write_watcher_| watches for events from Write();
- base::win::ObjectWatcher write_watcher_;
-
- DISALLOW_COPY_AND_ASSIGN(Core);
-};
-
-UDPSocketWin::Core::Core(UDPSocketWin* socket)
- : socket_(socket),
- reader_(this),
- writer_(this) {
- memset(&read_overlapped_, 0, sizeof(read_overlapped_));
- memset(&write_overlapped_, 0, sizeof(write_overlapped_));
-
- read_overlapped_.hEvent = WSACreateEvent();
- write_overlapped_.hEvent = WSACreateEvent();
-}
-
-UDPSocketWin::Core::~Core() {
- // Make sure the message loop is not watching this object anymore.
- read_watcher_.StopWatching();
- write_watcher_.StopWatching();
-
- WSACloseEvent(read_overlapped_.hEvent);
- memset(&read_overlapped_, 0xaf, sizeof(read_overlapped_));
- WSACloseEvent(write_overlapped_.hEvent);
- memset(&write_overlapped_, 0xaf, sizeof(write_overlapped_));
-}
-
-void UDPSocketWin::Core::WatchForRead() {
- // We grab an extra reference because there is an IO operation in progress.
- // Balanced in ReadDelegate::OnObjectSignaled().
- AddRef();
- read_watcher_.StartWatchingOnce(read_overlapped_.hEvent, &reader_);
-}
-
-void UDPSocketWin::Core::WatchForWrite() {
- // We grab an extra reference because there is an IO operation in progress.
- // Balanced in WriteDelegate::OnObjectSignaled().
- AddRef();
- write_watcher_.StartWatchingOnce(write_overlapped_.hEvent, &writer_);
-}
-
-void UDPSocketWin::Core::ReadDelegate::OnObjectSignaled(HANDLE object) {
- DCHECK_EQ(object, core_->read_overlapped_.hEvent);
- if (core_->socket_)
- core_->socket_->DidCompleteRead();
-
- core_->Release();
-}
-
-void UDPSocketWin::Core::WriteDelegate::OnObjectSignaled(HANDLE object) {
- DCHECK_EQ(object, core_->write_overlapped_.hEvent);
- if (core_->socket_)
- core_->socket_->DidCompleteWrite();
-
- core_->Release();
-}
-//-----------------------------------------------------------------------------
-
-QwaveAPI::QwaveAPI() : qwave_supported_(false) {
- HMODULE qwave = LoadLibrary(L"qwave.dll");
- if (!qwave)
- return;
- create_handle_func_ =
- (CreateHandleFn)GetProcAddress(qwave, "QOSCreateHandle");
- close_handle_func_ =
- (CloseHandleFn)GetProcAddress(qwave, "QOSCloseHandle");
- add_socket_to_flow_func_ =
- (AddSocketToFlowFn)GetProcAddress(qwave, "QOSAddSocketToFlow");
- remove_socket_from_flow_func_ =
- (RemoveSocketFromFlowFn)GetProcAddress(qwave, "QOSRemoveSocketFromFlow");
- set_flow_func_ = (SetFlowFn)GetProcAddress(qwave, "QOSSetFlow");
-
- if (create_handle_func_ && close_handle_func_ &&
- add_socket_to_flow_func_ && remove_socket_from_flow_func_ &&
- set_flow_func_) {
- qwave_supported_ = true;
- }
-}
-
-QwaveAPI& QwaveAPI::Get() {
- static base::LazyInstance<QwaveAPI>::Leaky lazy_qwave =
- LAZY_INSTANCE_INITIALIZER;
- return lazy_qwave.Get();
-}
-
-bool QwaveAPI::qwave_supported() const {
- return qwave_supported_;
-}
-BOOL QwaveAPI::CreateHandle(PQOS_VERSION version, PHANDLE handle) {
- return create_handle_func_(version, handle);
-}
-BOOL QwaveAPI::CloseHandle(HANDLE handle) {
- return close_handle_func_(handle);
-}
-
-BOOL QwaveAPI::AddSocketToFlow(HANDLE handle,
- SOCKET socket,
- PSOCKADDR addr,
- QOS_TRAFFIC_TYPE traffic_type,
- DWORD flags,
- PQOS_FLOWID flow_id) {
- return add_socket_to_flow_func_(handle,
- socket,
- addr,
- traffic_type,
- flags,
- flow_id);
-}
-
-BOOL QwaveAPI::RemoveSocketFromFlow(HANDLE handle,
- SOCKET socket,
- QOS_FLOWID flow_id,
- DWORD reserved) {
- return remove_socket_from_flow_func_(handle, socket, flow_id, reserved);
-}
-
-BOOL QwaveAPI::SetFlow(HANDLE handle,
- QOS_FLOWID flow_id,
- QOS_SET_FLOW op,
- ULONG size,
- PVOID data,
- DWORD reserved,
- LPOVERLAPPED overlapped) {
- return set_flow_func_(handle,
- flow_id,
- op,
- size,
- data,
- reserved,
- overlapped);
-}
-
-
-//-----------------------------------------------------------------------------
-
-UDPSocketWin::UDPSocketWin(DatagramSocket::BindType bind_type,
- const RandIntCallback& rand_int_cb,
- net::NetLog* net_log,
- const net::NetLogSource& source)
- : socket_(INVALID_SOCKET),
- addr_family_(0),
- is_connected_(false),
- socket_options_(SOCKET_OPTION_MULTICAST_LOOP),
- multicast_interface_(0),
- multicast_time_to_live_(1),
- bind_type_(bind_type),
- rand_int_cb_(rand_int_cb),
- use_non_blocking_io_(false),
- read_iobuffer_len_(0),
- write_iobuffer_len_(0),
- recv_from_address_(NULL),
- net_log_(NetLogWithSource::Make(net_log, NetLogSourceType::UDP_SOCKET)),
- qos_handle_(NULL),
- qos_flow_id_(0) {
- EnsureWinsockInit();
- net_log_.BeginEvent(NetLogEventType::SOCKET_ALIVE,
- source.ToEventParametersCallback());
- if (bind_type == DatagramSocket::RANDOM_BIND)
- DCHECK(!rand_int_cb.is_null());
-}
-
-UDPSocketWin::~UDPSocketWin() {
- Close();
- net_log_.EndEvent(NetLogEventType::SOCKET_ALIVE);
-}
-
-int UDPSocketWin::Open(AddressFamily address_family) {
- DCHECK(CalledOnValidThread());
- DCHECK_EQ(socket_, INVALID_SOCKET);
-
- addr_family_ = ConvertAddressFamily(address_family);
- socket_ = CreatePlatformSocket(addr_family_, SOCK_DGRAM, IPPROTO_UDP);
- if (socket_ == INVALID_SOCKET)
- return MapSystemError(WSAGetLastError());
- if (!use_non_blocking_io_) {
- core_ = new Core(this);
- } else {
- read_write_event_.Set(WSACreateEvent());
- WSAEventSelect(socket_, read_write_event_.Get(), FD_READ | FD_WRITE);
- }
- return OK;
-}
-
-void UDPSocketWin::Close() {
- DCHECK(CalledOnValidThread());
-
- if (socket_ == INVALID_SOCKET)
- return;
-
- if (qos_handle_) {
- QwaveAPI::Get().CloseHandle(qos_handle_);
- }
-
- // Zero out any pending read/write callback state.
- read_callback_.Reset();
- recv_from_address_ = NULL;
- write_callback_.Reset();
-
- base::TimeTicks start_time = base::TimeTicks::Now();
- closesocket(socket_);
- UMA_HISTOGRAM_TIMES("Net.UDPSocketWinClose",
- base::TimeTicks::Now() - start_time);
- socket_ = INVALID_SOCKET;
- addr_family_ = 0;
- is_connected_ = false;
-
- read_write_watcher_.StopWatching();
- read_write_event_.Close();
-
- if (core_) {
- core_->Detach();
- core_ = NULL;
- }
-}
-
-int UDPSocketWin::GetPeerAddress(IPEndPoint* address) const {
- DCHECK(CalledOnValidThread());
- DCHECK(address);
- if (!is_connected())
- return ERR_SOCKET_NOT_CONNECTED;
-
- // TODO(szym): Simplify. http://crbug.com/126152
- if (!remote_address_.get()) {
- SockaddrStorage storage;
- if (getpeername(socket_, storage.addr, &storage.addr_len))
- return MapSystemError(WSAGetLastError());
- std::unique_ptr<IPEndPoint> remote_address(new IPEndPoint());
- if (!remote_address->FromSockAddr(storage.addr, storage.addr_len))
- return ERR_ADDRESS_INVALID;
- remote_address_.reset(remote_address.release());
- }
-
- *address = *remote_address_;
- return OK;
-}
-
-int UDPSocketWin::GetLocalAddress(IPEndPoint* address) const {
- DCHECK(CalledOnValidThread());
- DCHECK(address);
- if (!is_connected())
- return ERR_SOCKET_NOT_CONNECTED;
-
- // TODO(szym): Simplify. http://crbug.com/126152
- if (!local_address_.get()) {
- SockaddrStorage storage;
- if (getsockname(socket_, storage.addr, &storage.addr_len))
- return MapSystemError(WSAGetLastError());
- std::unique_ptr<IPEndPoint> local_address(new IPEndPoint());
- if (!local_address->FromSockAddr(storage.addr, storage.addr_len))
- return ERR_ADDRESS_INVALID;
- local_address_.reset(local_address.release());
- net_log_.AddEvent(NetLogEventType::UDP_LOCAL_ADDRESS,
- CreateNetLogUDPConnectCallback(
- local_address_.get(),
- NetworkChangeNotifier::kInvalidNetworkHandle));
- }
-
- *address = *local_address_;
- return OK;
-}
-
-int UDPSocketWin::Read(IOBuffer* buf,
- int buf_len,
- const CompletionCallback& callback) {
- return RecvFrom(buf, buf_len, NULL, callback);
-}
-
-int UDPSocketWin::RecvFrom(IOBuffer* buf,
- int buf_len,
- IPEndPoint* address,
- const CompletionCallback& callback) {
- DCHECK(CalledOnValidThread());
- DCHECK_NE(INVALID_SOCKET, socket_);
- CHECK(read_callback_.is_null());
- DCHECK(!recv_from_address_);
- DCHECK(!callback.is_null()); // Synchronous operation not supported.
- DCHECK_GT(buf_len, 0);
-
- int nread = core_ ? InternalRecvFromOverlapped(buf, buf_len, address)
- : InternalRecvFromNonBlocking(buf, buf_len, address);
- if (nread != ERR_IO_PENDING)
- return nread;
-
- read_callback_ = callback;
- recv_from_address_ = address;
- return ERR_IO_PENDING;
-}
-
-int UDPSocketWin::Write(IOBuffer* buf,
- int buf_len,
- const CompletionCallback& callback) {
- return SendToOrWrite(buf, buf_len, remote_address_.get(), callback);
-}
-
-int UDPSocketWin::SendTo(IOBuffer* buf,
- int buf_len,
- const IPEndPoint& address,
- const CompletionCallback& callback) {
- return SendToOrWrite(buf, buf_len, &address, callback);
-}
-
-int UDPSocketWin::SendToOrWrite(IOBuffer* buf,
- int buf_len,
- const IPEndPoint* address,
- const CompletionCallback& callback) {
- DCHECK(CalledOnValidThread());
- DCHECK_NE(INVALID_SOCKET, socket_);
- CHECK(write_callback_.is_null());
- DCHECK(!callback.is_null()); // Synchronous operation not supported.
- DCHECK_GT(buf_len, 0);
- DCHECK(!send_to_address_.get());
-
- int nwrite = core_ ? InternalSendToOverlapped(buf, buf_len, address)
- : InternalSendToNonBlocking(buf, buf_len, address);
- if (nwrite != ERR_IO_PENDING)
- return nwrite;
-
- if (address)
- send_to_address_.reset(new IPEndPoint(*address));
- write_callback_ = callback;
- return ERR_IO_PENDING;
-}
-
-int UDPSocketWin::Connect(const IPEndPoint& address) {
- DCHECK_NE(socket_, INVALID_SOCKET);
- net_log_.BeginEvent(
- NetLogEventType::UDP_CONNECT,
- CreateNetLogUDPConnectCallback(
- &address, NetworkChangeNotifier::kInvalidNetworkHandle));
- int rv = InternalConnect(address);
- net_log_.EndEventWithNetErrorCode(NetLogEventType::UDP_CONNECT, rv);
- is_connected_ = (rv == OK);
- return rv;
-}
-
-int UDPSocketWin::InternalConnect(const IPEndPoint& address) {
- DCHECK(!is_connected());
- DCHECK(!remote_address_.get());
-
- int rv = 0;
- if (bind_type_ == DatagramSocket::RANDOM_BIND) {
- // Construct IPAddress of appropriate size (IPv4 or IPv6) of 0s,
- // representing INADDR_ANY or in6addr_any.
- size_t addr_size = (address.GetSockAddrFamily() == AF_INET)
- ? IPAddress::kIPv4AddressSize
- : IPAddress::kIPv6AddressSize;
- rv = RandomBind(IPAddress::AllZeros(addr_size));
- }
- // else connect() does the DatagramSocket::DEFAULT_BIND
-
- if (rv < 0) {
- UMA_HISTOGRAM_SPARSE_SLOWLY("Net.UdpSocketRandomBindErrorCode", -rv);
- return rv;
- }
-
- SockaddrStorage storage;
- if (!address.ToSockAddr(storage.addr, &storage.addr_len))
- return ERR_ADDRESS_INVALID;
-
- rv = connect(socket_, storage.addr, storage.addr_len);
- if (rv < 0)
- return MapSystemError(WSAGetLastError());
-
- remote_address_.reset(new IPEndPoint(address));
- return rv;
-}
-
-int UDPSocketWin::Bind(const IPEndPoint& address) {
- DCHECK_NE(socket_, INVALID_SOCKET);
- DCHECK(!is_connected());
-
- int rv = SetMulticastOptions();
- if (rv < 0)
- return rv;
-
- rv = DoBind(address);
- if (rv < 0)
- return rv;
-
- local_address_.reset();
- is_connected_ = true;
- return rv;
-}
-
-int UDPSocketWin::BindToNetwork(NetworkChangeNotifier::NetworkHandle network) {
- NOTIMPLEMENTED();
- return ERR_NOT_IMPLEMENTED;
-}
-
-int UDPSocketWin::SetReceiveBufferSize(int32_t size) {
- DCHECK_NE(socket_, INVALID_SOCKET);
- DCHECK(CalledOnValidThread());
- int rv = setsockopt(socket_, SOL_SOCKET, SO_RCVBUF,
- reinterpret_cast<const char*>(&size), sizeof(size));
- if (rv != 0)
- return MapSystemError(WSAGetLastError());
-
- // According to documentation, setsockopt may succeed, but we need to check
- // the results via getsockopt to be sure it works on Windows.
- int32_t actual_size = 0;
- int option_size = sizeof(actual_size);
- rv = getsockopt(socket_, SOL_SOCKET, SO_RCVBUF,
- reinterpret_cast<char*>(&actual_size), &option_size);
- if (rv != 0)
- return MapSystemError(WSAGetLastError());
- if (actual_size >= size)
- return OK;
- UMA_HISTOGRAM_CUSTOM_COUNTS("Net.SocketUnchangeableReceiveBuffer",
- actual_size, 1000, 1000000, 50);
- return ERR_SOCKET_RECEIVE_BUFFER_SIZE_UNCHANGEABLE;
-}
-
-int UDPSocketWin::SetSendBufferSize(int32_t size) {
- DCHECK_NE(socket_, INVALID_SOCKET);
- DCHECK(CalledOnValidThread());
- int rv = setsockopt(socket_, SOL_SOCKET, SO_SNDBUF,
- reinterpret_cast<const char*>(&size), sizeof(size));
- if (rv != 0)
- return MapSystemError(WSAGetLastError());
- // According to documentation, setsockopt may succeed, but we need to check
- // the results via getsockopt to be sure it works on Windows.
- int32_t actual_size = 0;
- int option_size = sizeof(actual_size);
- rv = getsockopt(socket_, SOL_SOCKET, SO_SNDBUF,
- reinterpret_cast<char*>(&actual_size), &option_size);
- if (rv != 0)
- return MapSystemError(WSAGetLastError());
- if (actual_size >= size)
- return OK;
- UMA_HISTOGRAM_CUSTOM_COUNTS("Net.SocketUnchangeableSendBuffer",
- actual_size, 1000, 1000000, 50);
- return ERR_SOCKET_SEND_BUFFER_SIZE_UNCHANGEABLE;
-}
-
-int UDPSocketWin::SetDoNotFragment() {
- DCHECK_NE(socket_, INVALID_SOCKET);
- DCHECK(CalledOnValidThread());
-
- if (addr_family_ == AF_INET6)
- return OK;
-
- DWORD val = 1;
- int rv = setsockopt(socket_, IPPROTO_IP, IP_DONTFRAGMENT,
- reinterpret_cast<const char*>(&val), sizeof(val));
- return rv == 0 ? OK : MapSystemError(WSAGetLastError());
-}
-
-int UDPSocketWin::AllowAddressReuse() {
- DCHECK_NE(socket_, INVALID_SOCKET);
- DCHECK(CalledOnValidThread());
- DCHECK(!is_connected());
-
- BOOL true_value = TRUE;
- int rv = setsockopt(socket_, SOL_SOCKET, SO_REUSEADDR,
- reinterpret_cast<const char*>(&true_value),
- sizeof(true_value));
- return rv == 0 ? OK : MapSystemError(WSAGetLastError());
-}
-
-int UDPSocketWin::SetBroadcast(bool broadcast) {
- DCHECK_NE(socket_, INVALID_SOCKET);
- DCHECK(CalledOnValidThread());
-
- BOOL value = broadcast ? TRUE : FALSE;
- int rv = setsockopt(socket_, SOL_SOCKET, SO_BROADCAST,
- reinterpret_cast<const char*>(&value), sizeof(value));
- return rv == 0 ? OK : MapSystemError(WSAGetLastError());
-}
-
-void UDPSocketWin::DoReadCallback(int rv) {
- DCHECK_NE(rv, ERR_IO_PENDING);
- DCHECK(!read_callback_.is_null());
-
- // since Run may result in Read being called, clear read_callback_ up front.
- CompletionCallback c = read_callback_;
- read_callback_.Reset();
- c.Run(rv);
-}
-
-void UDPSocketWin::DoWriteCallback(int rv) {
- DCHECK_NE(rv, ERR_IO_PENDING);
- DCHECK(!write_callback_.is_null());
-
- // since Run may result in Write being called, clear write_callback_ up front.
- CompletionCallback c = write_callback_;
- write_callback_.Reset();
- c.Run(rv);
-}
-
-void UDPSocketWin::DidCompleteRead() {
- DWORD num_bytes, flags;
- BOOL ok = WSAGetOverlappedResult(socket_, &core_->read_overlapped_,
- &num_bytes, FALSE, &flags);
- WSAResetEvent(core_->read_overlapped_.hEvent);
- int result = ok ? num_bytes : MapSystemError(WSAGetLastError());
- // Convert address.
- IPEndPoint address;
- IPEndPoint* address_to_log = NULL;
- if (result >= 0) {
- if (address.FromSockAddr(core_->recv_addr_storage_.addr,
- core_->recv_addr_storage_.addr_len)) {
- if (recv_from_address_)
- *recv_from_address_ = address;
- address_to_log = &address;
- } else {
- result = ERR_ADDRESS_INVALID;
- }
- }
- LogRead(result, core_->read_iobuffer_->data(), address_to_log);
- core_->read_iobuffer_ = NULL;
- recv_from_address_ = NULL;
- DoReadCallback(result);
-}
-
-void UDPSocketWin::DidCompleteWrite() {
- DWORD num_bytes, flags;
- BOOL ok = WSAGetOverlappedResult(socket_, &core_->write_overlapped_,
- &num_bytes, FALSE, &flags);
- WSAResetEvent(core_->write_overlapped_.hEvent);
- int result = ok ? num_bytes : MapSystemError(WSAGetLastError());
- LogWrite(result, core_->write_iobuffer_->data(), send_to_address_.get());
-
- send_to_address_.reset();
- core_->write_iobuffer_ = NULL;
- DoWriteCallback(result);
-}
-
-void UDPSocketWin::OnObjectSignaled(HANDLE object) {
- DCHECK(object == read_write_event_.Get());
- WSANETWORKEVENTS network_events;
- int os_error = 0;
- int rv =
- WSAEnumNetworkEvents(socket_, read_write_event_.Get(), &network_events);
- if (rv == SOCKET_ERROR) {
- os_error = WSAGetLastError();
- rv = MapSystemError(os_error);
- if (read_iobuffer_) {
- read_iobuffer_ = NULL;
- read_iobuffer_len_ = 0;
- recv_from_address_ = NULL;
- DoReadCallback(rv);
- }
- if (write_iobuffer_) {
- write_iobuffer_ = NULL;
- write_iobuffer_len_ = 0;
- send_to_address_.reset();
- DoWriteCallback(rv);
- }
- return;
- }
- if ((network_events.lNetworkEvents & FD_READ) && read_iobuffer_) {
- OnReadSignaled();
- }
- if ((network_events.lNetworkEvents & FD_WRITE) && write_iobuffer_) {
- OnWriteSignaled();
- }
-
- // There's still pending read / write. Watch for further events.
- if (read_iobuffer_ || write_iobuffer_) {
- WatchForReadWrite();
- }
-}
-
-void UDPSocketWin::OnReadSignaled() {
- int rv = InternalRecvFromNonBlocking(read_iobuffer_.get(), read_iobuffer_len_,
- recv_from_address_);
- if (rv == ERR_IO_PENDING)
- return;
- read_iobuffer_ = NULL;
- read_iobuffer_len_ = 0;
- recv_from_address_ = NULL;
- DoReadCallback(rv);
-}
-
-void UDPSocketWin::OnWriteSignaled() {
- int rv = InternalSendToNonBlocking(write_iobuffer_.get(), write_iobuffer_len_,
- send_to_address_.get());
- if (rv == ERR_IO_PENDING)
- return;
- write_iobuffer_ = NULL;
- write_iobuffer_len_ = 0;
- send_to_address_.reset();
- DoWriteCallback(rv);
-}
-
-void UDPSocketWin::WatchForReadWrite() {
- if (read_write_watcher_.IsWatching())
- return;
- bool watched =
- read_write_watcher_.StartWatchingOnce(read_write_event_.Get(), this);
- DCHECK(watched);
-}
-
-void UDPSocketWin::LogRead(int result,
- const char* bytes,
- const IPEndPoint* address) const {
- if (result < 0) {
- net_log_.AddEventWithNetErrorCode(NetLogEventType::UDP_RECEIVE_ERROR,
- result);
- return;
- }
-
- if (net_log_.IsCapturing()) {
- net_log_.AddEvent(
- NetLogEventType::UDP_BYTES_RECEIVED,
- CreateNetLogUDPDataTranferCallback(result, bytes, address));
- }
-
- NetworkActivityMonitor::GetInstance()->IncrementBytesReceived(result);
-}
-
-void UDPSocketWin::LogWrite(int result,
- const char* bytes,
- const IPEndPoint* address) const {
- if (result < 0) {
- net_log_.AddEventWithNetErrorCode(NetLogEventType::UDP_SEND_ERROR, result);
- return;
- }
-
- if (net_log_.IsCapturing()) {
- net_log_.AddEvent(
- NetLogEventType::UDP_BYTES_SENT,
- CreateNetLogUDPDataTranferCallback(result, bytes, address));
- }
-
- NetworkActivityMonitor::GetInstance()->IncrementBytesSent(result);
-}
-
-int UDPSocketWin::InternalRecvFromOverlapped(IOBuffer* buf,
- int buf_len,
- IPEndPoint* address) {
- DCHECK(!core_->read_iobuffer_.get());
- SockaddrStorage& storage = core_->recv_addr_storage_;
- storage.addr_len = sizeof(storage.addr_storage);
-
- WSABUF read_buffer;
- read_buffer.buf = buf->data();
- read_buffer.len = buf_len;
-
- DWORD flags = 0;
- DWORD num;
- CHECK_NE(INVALID_SOCKET, socket_);
- AssertEventNotSignaled(core_->read_overlapped_.hEvent);
- int rv = WSARecvFrom(socket_, &read_buffer, 1, &num, &flags, storage.addr,
- &storage.addr_len, &core_->read_overlapped_, NULL);
- if (rv == 0) {
- if (ResetEventIfSignaled(core_->read_overlapped_.hEvent)) {
- int result = num;
- // Convert address.
- IPEndPoint address_storage;
- IPEndPoint* address_to_log = NULL;
- if (result >= 0) {
- if (address_storage.FromSockAddr(core_->recv_addr_storage_.addr,
- core_->recv_addr_storage_.addr_len)) {
- if (address)
- *address = address_storage;
- address_to_log = &address_storage;
- } else {
- result = ERR_ADDRESS_INVALID;
- }
- }
- LogRead(result, buf->data(), address_to_log);
- return result;
- }
- } else {
- int os_error = WSAGetLastError();
- if (os_error != WSA_IO_PENDING) {
- int result = MapSystemError(os_error);
- LogRead(result, NULL, NULL);
- return result;
- }
- }
- core_->WatchForRead();
- core_->read_iobuffer_ = buf;
- return ERR_IO_PENDING;
-}
-
-int UDPSocketWin::InternalSendToOverlapped(IOBuffer* buf,
- int buf_len,
- const IPEndPoint* address) {
- DCHECK(!core_->write_iobuffer_.get());
- SockaddrStorage storage;
- struct sockaddr* addr = storage.addr;
- // Convert address.
- if (!address) {
- addr = NULL;
- storage.addr_len = 0;
- } else {
- if (!address->ToSockAddr(addr, &storage.addr_len)) {
- int result = ERR_ADDRESS_INVALID;
- LogWrite(result, NULL, NULL);
- return result;
- }
- }
-
- WSABUF write_buffer;
- write_buffer.buf = buf->data();
- write_buffer.len = buf_len;
-
- DWORD flags = 0;
- DWORD num;
- AssertEventNotSignaled(core_->write_overlapped_.hEvent);
- int rv = WSASendTo(socket_, &write_buffer, 1, &num, flags,
- addr, storage.addr_len, &core_->write_overlapped_, NULL);
- if (rv == 0) {
- if (ResetEventIfSignaled(core_->write_overlapped_.hEvent)) {
- int result = num;
- LogWrite(result, buf->data(), address);
- return result;
- }
- } else {
- int os_error = WSAGetLastError();
- if (os_error != WSA_IO_PENDING) {
- int result = MapSystemError(os_error);
- LogWrite(result, NULL, NULL);
- return result;
- }
- }
-
- core_->WatchForWrite();
- core_->write_iobuffer_ = buf;
- return ERR_IO_PENDING;
-}
-
-int UDPSocketWin::InternalRecvFromNonBlocking(IOBuffer* buf,
- int buf_len,
- IPEndPoint* address) {
- DCHECK(!read_iobuffer_ || read_iobuffer_.get() == buf);
- SockaddrStorage storage;
- storage.addr_len = sizeof(storage.addr_storage);
-
- CHECK_NE(INVALID_SOCKET, socket_);
- int rv = recvfrom(socket_, buf->data(), buf_len, 0, storage.addr,
- &storage.addr_len);
- if (rv == SOCKET_ERROR) {
- int os_error = WSAGetLastError();
- if (os_error == WSAEWOULDBLOCK) {
- read_iobuffer_ = buf;
- read_iobuffer_len_ = buf_len;
- WatchForReadWrite();
- return ERR_IO_PENDING;
- }
- rv = MapSystemError(os_error);
- LogRead(rv, NULL, NULL);
- return rv;
- }
- IPEndPoint address_storage;
- IPEndPoint* address_to_log = NULL;
- if (rv >= 0) {
- if (address_storage.FromSockAddr(storage.addr, storage.addr_len)) {
- if (address)
- *address = address_storage;
- address_to_log = &address_storage;
- } else {
- rv = ERR_ADDRESS_INVALID;
- }
- }
- LogRead(rv, buf->data(), address_to_log);
- return rv;
-}
-
-int UDPSocketWin::InternalSendToNonBlocking(IOBuffer* buf,
- int buf_len,
- const IPEndPoint* address) {
- DCHECK(!write_iobuffer_ || write_iobuffer_.get() == buf);
- SockaddrStorage storage;
- struct sockaddr* addr = storage.addr;
- // Convert address.
- if (address) {
- if (!address->ToSockAddr(addr, &storage.addr_len)) {
- int result = ERR_ADDRESS_INVALID;
- LogWrite(result, NULL, NULL);
- return result;
- }
- } else {
- addr = NULL;
- storage.addr_len = 0;
- }
-
- int rv = sendto(socket_, buf->data(), buf_len, 0, addr, storage.addr_len);
- if (rv == SOCKET_ERROR) {
- int os_error = WSAGetLastError();
- if (os_error == WSAEWOULDBLOCK) {
- write_iobuffer_ = buf;
- write_iobuffer_len_ = buf_len;
- WatchForReadWrite();
- return ERR_IO_PENDING;
- }
- rv = MapSystemError(os_error);
- LogWrite(rv, NULL, NULL);
- return rv;
- }
- LogWrite(rv, buf->data(), address);
- return rv;
-}
-
-int UDPSocketWin::SetMulticastOptions() {
- if (!(socket_options_ & SOCKET_OPTION_MULTICAST_LOOP)) {
- DWORD loop = 0;
- int protocol_level =
- addr_family_ == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
- int option =
- addr_family_ == AF_INET ? IP_MULTICAST_LOOP: IPV6_MULTICAST_LOOP;
- int rv = setsockopt(socket_, protocol_level, option,
- reinterpret_cast<const char*>(&loop), sizeof(loop));
- if (rv < 0)
- return MapSystemError(WSAGetLastError());
- }
- if (multicast_time_to_live_ != 1) {
- DWORD hops = multicast_time_to_live_;
- int protocol_level =
- addr_family_ == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
- int option =
- addr_family_ == AF_INET ? IP_MULTICAST_TTL: IPV6_MULTICAST_HOPS;
- int rv = setsockopt(socket_, protocol_level, option,
- reinterpret_cast<const char*>(&hops), sizeof(hops));
- if (rv < 0)
- return MapSystemError(WSAGetLastError());
- }
- if (multicast_interface_ != 0) {
- switch (addr_family_) {
- case AF_INET: {
- in_addr address;
- address.s_addr = htonl(multicast_interface_);
- int rv = setsockopt(socket_, IPPROTO_IP, IP_MULTICAST_IF,
- reinterpret_cast<const char*>(&address),
- sizeof(address));
- if (rv)
- return MapSystemError(WSAGetLastError());
- break;
- }
- case AF_INET6: {
- uint32_t interface_index = multicast_interface_;
- int rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_MULTICAST_IF,
- reinterpret_cast<const char*>(&interface_index),
- sizeof(interface_index));
- if (rv)
- return MapSystemError(WSAGetLastError());
- break;
- }
- default:
- NOTREACHED() << "Invalid address family";
- return ERR_ADDRESS_INVALID;
- }
- }
- return OK;
-}
-
-int UDPSocketWin::DoBind(const IPEndPoint& address) {
- SockaddrStorage storage;
- if (!address.ToSockAddr(storage.addr, &storage.addr_len))
- return ERR_ADDRESS_INVALID;
- int rv = bind(socket_, storage.addr, storage.addr_len);
- if (rv == 0)
- return OK;
- int last_error = WSAGetLastError();
- UMA_HISTOGRAM_SPARSE_SLOWLY("Net.UdpSocketBindErrorFromWinOS", last_error);
- // Map some codes that are special to bind() separately.
- // * WSAEACCES: If a port is already bound to a socket, WSAEACCES may be
- // returned instead of WSAEADDRINUSE, depending on whether the socket
- // option SO_REUSEADDR or SO_EXCLUSIVEADDRUSE is set and whether the
- // conflicting socket is owned by a different user account. See the MSDN
- // page "Using SO_REUSEADDR and SO_EXCLUSIVEADDRUSE" for the gory details.
- if (last_error == WSAEACCES || last_error == WSAEADDRNOTAVAIL)
- return ERR_ADDRESS_IN_USE;
- return MapSystemError(last_error);
-}
-
-int UDPSocketWin::RandomBind(const IPAddress& address) {
- DCHECK(bind_type_ == DatagramSocket::RANDOM_BIND && !rand_int_cb_.is_null());
-
- for (int i = 0; i < kBindRetries; ++i) {
- int rv = DoBind(IPEndPoint(address, static_cast<uint16_t>(rand_int_cb_.Run(
- kPortStart, kPortEnd))));
- if (rv != ERR_ADDRESS_IN_USE)
- return rv;
- }
- return DoBind(IPEndPoint(address, 0));
-}
-
-int UDPSocketWin::JoinGroup(const IPAddress& group_address) const {
- DCHECK(CalledOnValidThread());
- if (!is_connected())
- return ERR_SOCKET_NOT_CONNECTED;
-
- switch (group_address.size()) {
- case IPAddress::kIPv4AddressSize: {
- if (addr_family_ != AF_INET)
- return ERR_ADDRESS_INVALID;
- ip_mreq mreq;
- mreq.imr_interface.s_addr = htonl(multicast_interface_);
- memcpy(&mreq.imr_multiaddr, group_address.bytes().data(),
- IPAddress::kIPv4AddressSize);
- int rv = setsockopt(socket_, IPPROTO_IP, IP_ADD_MEMBERSHIP,
- reinterpret_cast<const char*>(&mreq),
- sizeof(mreq));
- if (rv)
- return MapSystemError(WSAGetLastError());
- return OK;
- }
- case IPAddress::kIPv6AddressSize: {
- if (addr_family_ != AF_INET6)
- return ERR_ADDRESS_INVALID;
- ipv6_mreq mreq;
- mreq.ipv6mr_interface = multicast_interface_;
- memcpy(&mreq.ipv6mr_multiaddr, group_address.bytes().data(),
- IPAddress::kIPv6AddressSize);
- int rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP,
- reinterpret_cast<const char*>(&mreq),
- sizeof(mreq));
- if (rv)
- return MapSystemError(WSAGetLastError());
- return OK;
- }
- default:
- NOTREACHED() << "Invalid address family";
- return ERR_ADDRESS_INVALID;
- }
-}
-
-int UDPSocketWin::LeaveGroup(const IPAddress& group_address) const {
- DCHECK(CalledOnValidThread());
- if (!is_connected())
- return ERR_SOCKET_NOT_CONNECTED;
-
- switch (group_address.size()) {
- case IPAddress::kIPv4AddressSize: {
- if (addr_family_ != AF_INET)
- return ERR_ADDRESS_INVALID;
- ip_mreq mreq;
- mreq.imr_interface.s_addr = htonl(multicast_interface_);
- memcpy(&mreq.imr_multiaddr, group_address.bytes().data(),
- IPAddress::kIPv4AddressSize);
- int rv = setsockopt(socket_, IPPROTO_IP, IP_DROP_MEMBERSHIP,
- reinterpret_cast<const char*>(&mreq), sizeof(mreq));
- if (rv)
- return MapSystemError(WSAGetLastError());
- return OK;
- }
- case IPAddress::kIPv6AddressSize: {
- if (addr_family_ != AF_INET6)
- return ERR_ADDRESS_INVALID;
- ipv6_mreq mreq;
- mreq.ipv6mr_interface = multicast_interface_;
- memcpy(&mreq.ipv6mr_multiaddr, group_address.bytes().data(),
- IPAddress::kIPv6AddressSize);
- int rv = setsockopt(socket_, IPPROTO_IPV6, IP_DROP_MEMBERSHIP,
- reinterpret_cast<const char*>(&mreq), sizeof(mreq));
- if (rv)
- return MapSystemError(WSAGetLastError());
- return OK;
- }
- default:
- NOTREACHED() << "Invalid address family";
- return ERR_ADDRESS_INVALID;
- }
-}
-
-int UDPSocketWin::SetMulticastInterface(uint32_t interface_index) {
- DCHECK(CalledOnValidThread());
- if (is_connected())
- return ERR_SOCKET_IS_CONNECTED;
- multicast_interface_ = interface_index;
- return OK;
-}
-
-int UDPSocketWin::SetMulticastTimeToLive(int time_to_live) {
- DCHECK(CalledOnValidThread());
- if (is_connected())
- return ERR_SOCKET_IS_CONNECTED;
-
- if (time_to_live < 0 || time_to_live > 255)
- return ERR_INVALID_ARGUMENT;
- multicast_time_to_live_ = time_to_live;
- return OK;
-}
-
-int UDPSocketWin::SetMulticastLoopbackMode(bool loopback) {
- DCHECK(CalledOnValidThread());
- if (is_connected())
- return ERR_SOCKET_IS_CONNECTED;
-
- if (loopback)
- socket_options_ |= SOCKET_OPTION_MULTICAST_LOOP;
- else
- socket_options_ &= ~SOCKET_OPTION_MULTICAST_LOOP;
- return OK;
-}
-
-int UDPSocketWin::SetDiffServCodePoint(DiffServCodePoint dscp) {
- if (dscp == DSCP_NO_CHANGE) {
- return OK;
- }
-
- if (!is_connected())
- return ERR_SOCKET_NOT_CONNECTED;
-
- QwaveAPI& qos(QwaveAPI::Get());
-
- if (!qos.qwave_supported())
- return ERROR_NOT_SUPPORTED;
-
- if (qos_handle_ == NULL) {
- QOS_VERSION version;
- version.MajorVersion = 1;
- version.MinorVersion = 0;
- qos.CreateHandle(&version, &qos_handle_);
- if (qos_handle_ == NULL)
- return ERROR_NOT_SUPPORTED;
- }
-
- QOS_TRAFFIC_TYPE traffic_type = QOSTrafficTypeBestEffort;
- switch (dscp) {
- case DSCP_CS0:
- traffic_type = QOSTrafficTypeBestEffort;
- break;
- case DSCP_CS1:
- traffic_type = QOSTrafficTypeBackground;
- break;
- case DSCP_AF11:
- case DSCP_AF12:
- case DSCP_AF13:
- case DSCP_CS2:
- case DSCP_AF21:
- case DSCP_AF22:
- case DSCP_AF23:
- case DSCP_CS3:
- case DSCP_AF31:
- case DSCP_AF32:
- case DSCP_AF33:
- case DSCP_CS4:
- traffic_type = QOSTrafficTypeExcellentEffort;
- break;
- case DSCP_AF41:
- case DSCP_AF42:
- case DSCP_AF43:
- case DSCP_CS5:
- traffic_type = QOSTrafficTypeAudioVideo;
- break;
- case DSCP_EF:
- case DSCP_CS6:
- traffic_type = QOSTrafficTypeVoice;
- break;
- case DSCP_CS7:
- traffic_type = QOSTrafficTypeControl;
- break;
- case DSCP_NO_CHANGE:
- NOTREACHED();
- break;
- }
- if (qos_flow_id_ != 0) {
- qos.RemoveSocketFromFlow(qos_handle_, NULL, qos_flow_id_, 0);
- qos_flow_id_ = 0;
- }
- if (!qos.AddSocketToFlow(qos_handle_,
- socket_,
- NULL,
- traffic_type,
- QOS_NON_ADAPTIVE_FLOW,
- &qos_flow_id_)) {
- DWORD err = GetLastError();
- if (err == ERROR_DEVICE_REINITIALIZATION_NEEDED) {
- qos.CloseHandle(qos_handle_);
- qos_flow_id_ = 0;
- qos_handle_ = 0;
- }
- return MapSystemError(err);
- }
- // This requires admin rights, and may fail, if so we ignore it
- // as AddSocketToFlow should still do *approximately* the right thing.
- DWORD buf = dscp;
- qos.SetFlow(qos_handle_,
- qos_flow_id_,
- QOSSetOutgoingDSCPValue,
- sizeof(buf),
- &buf,
- 0,
- NULL);
-
- return OK;
-}
-
-void UDPSocketWin::DetachFromThread() {
- base::NonThreadSafe::DetachFromThread();
-}
-
-void UDPSocketWin::UseNonBlockingIO() {
- DCHECK(!core_);
- use_non_blocking_io_ = true;
-}
-
-} // namespace net
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