| // Copyright 2013 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 "ppapi/proxy/udp_socket_resource_base.h" |
| |
| #include <algorithm> |
| #include <cstring> |
| |
| #include "base/logging.h" |
| #include "ppapi/c/pp_bool.h" |
| #include "ppapi/c/pp_completion_callback.h" |
| #include "ppapi/c/pp_errors.h" |
| #include "ppapi/proxy/error_conversion.h" |
| #include "ppapi/proxy/ppapi_messages.h" |
| #include "ppapi/shared_impl/socket_option_data.h" |
| #include "ppapi/thunk/enter.h" |
| #include "ppapi/thunk/resource_creation_api.h" |
| |
| namespace ppapi { |
| namespace proxy { |
| |
| const int32_t UDPSocketResourceBase::kMaxReadSize = 1024 * 1024; |
| const int32_t UDPSocketResourceBase::kMaxWriteSize = 1024 * 1024; |
| const int32_t UDPSocketResourceBase::kMaxSendBufferSize = |
| 1024 * UDPSocketResourceBase::kMaxWriteSize; |
| const int32_t UDPSocketResourceBase::kMaxReceiveBufferSize = |
| 1024 * UDPSocketResourceBase::kMaxReadSize; |
| |
| |
| UDPSocketResourceBase::UDPSocketResourceBase(Connection connection, |
| PP_Instance instance, |
| bool private_api) |
| : PluginResource(connection, instance), |
| private_api_(private_api), |
| bound_(false), |
| closed_(false), |
| read_buffer_(NULL), |
| bytes_to_read_(-1) { |
| recvfrom_addr_.size = 0; |
| memset(recvfrom_addr_.data, 0, |
| arraysize(recvfrom_addr_.data) * sizeof(*recvfrom_addr_.data)); |
| bound_addr_.size = 0; |
| memset(bound_addr_.data, 0, |
| arraysize(bound_addr_.data) * sizeof(*bound_addr_.data)); |
| |
| if (private_api) |
| SendCreate(BROWSER, PpapiHostMsg_UDPSocket_CreatePrivate()); |
| else |
| SendCreate(BROWSER, PpapiHostMsg_UDPSocket_Create()); |
| } |
| |
| UDPSocketResourceBase::~UDPSocketResourceBase() { |
| } |
| |
| int32_t UDPSocketResourceBase::SetOptionImpl( |
| PP_UDPSocket_Option name, |
| const PP_Var& value, |
| scoped_refptr<TrackedCallback> callback) { |
| if (closed_) |
| return PP_ERROR_FAILED; |
| |
| SocketOptionData option_data; |
| switch (name) { |
| case PP_UDPSOCKET_OPTION_ADDRESS_REUSE: |
| case PP_UDPSOCKET_OPTION_BROADCAST: { |
| if (bound_) |
| return PP_ERROR_FAILED; |
| if (value.type != PP_VARTYPE_BOOL) |
| return PP_ERROR_BADARGUMENT; |
| option_data.SetBool(PP_ToBool(value.value.as_bool)); |
| break; |
| } |
| case PP_UDPSOCKET_OPTION_SEND_BUFFER_SIZE: |
| case PP_UDPSOCKET_OPTION_RECV_BUFFER_SIZE: { |
| if (!bound_) |
| return PP_ERROR_FAILED; |
| if (value.type != PP_VARTYPE_INT32) |
| return PP_ERROR_BADARGUMENT; |
| option_data.SetInt32(value.value.as_int); |
| break; |
| } |
| default: { |
| NOTREACHED(); |
| return PP_ERROR_BADARGUMENT; |
| } |
| } |
| |
| Call<PpapiPluginMsg_UDPSocket_SetOptionReply>( |
| BROWSER, |
| PpapiHostMsg_UDPSocket_SetOption(name, option_data), |
| base::Bind(&UDPSocketResourceBase::OnPluginMsgSetOptionReply, |
| base::Unretained(this), |
| callback), |
| callback); |
| return PP_OK_COMPLETIONPENDING; |
| } |
| |
| int32_t UDPSocketResourceBase::BindImpl( |
| const PP_NetAddress_Private* addr, |
| scoped_refptr<TrackedCallback> callback) { |
| if (!addr) |
| return PP_ERROR_BADARGUMENT; |
| if (bound_ || closed_) |
| return PP_ERROR_FAILED; |
| if (TrackedCallback::IsPending(bind_callback_)) |
| return PP_ERROR_INPROGRESS; |
| |
| bind_callback_ = callback; |
| |
| // Send the request, the browser will call us back via BindReply. |
| Call<PpapiPluginMsg_UDPSocket_BindReply>( |
| BROWSER, |
| PpapiHostMsg_UDPSocket_Bind(*addr), |
| base::Bind(&UDPSocketResourceBase::OnPluginMsgBindReply, |
| base::Unretained(this)), |
| callback); |
| return PP_OK_COMPLETIONPENDING; |
| } |
| |
| PP_Bool UDPSocketResourceBase::GetBoundAddressImpl( |
| PP_NetAddress_Private* addr) { |
| if (!addr || !bound_ || closed_) |
| return PP_FALSE; |
| |
| *addr = bound_addr_; |
| return PP_TRUE; |
| } |
| |
| int32_t UDPSocketResourceBase::RecvFromImpl( |
| char* buffer, |
| int32_t num_bytes, |
| PP_Resource* addr, |
| scoped_refptr<TrackedCallback> callback) { |
| if (!buffer || num_bytes <= 0) |
| return PP_ERROR_BADARGUMENT; |
| if (!bound_) |
| return PP_ERROR_FAILED; |
| if (TrackedCallback::IsPending(recvfrom_callback_)) |
| return PP_ERROR_INPROGRESS; |
| |
| read_buffer_ = buffer; |
| bytes_to_read_ = std::min(num_bytes, kMaxReadSize); |
| recvfrom_callback_ = callback; |
| |
| // Send the request, the browser will call us back via RecvFromReply. |
| Call<PpapiPluginMsg_UDPSocket_RecvFromReply>( |
| BROWSER, |
| PpapiHostMsg_UDPSocket_RecvFrom(bytes_to_read_), |
| base::Bind(&UDPSocketResourceBase::OnPluginMsgRecvFromReply, |
| base::Unretained(this), addr), |
| callback); |
| return PP_OK_COMPLETIONPENDING; |
| } |
| |
| PP_Bool UDPSocketResourceBase::GetRecvFromAddressImpl( |
| PP_NetAddress_Private* addr) { |
| if (!addr) |
| return PP_FALSE; |
| *addr = recvfrom_addr_; |
| return PP_TRUE; |
| } |
| |
| int32_t UDPSocketResourceBase::SendToImpl( |
| const char* buffer, |
| int32_t num_bytes, |
| const PP_NetAddress_Private* addr, |
| scoped_refptr<TrackedCallback> callback) { |
| if (!buffer || num_bytes <= 0 || !addr) |
| return PP_ERROR_BADARGUMENT; |
| if (!bound_) |
| return PP_ERROR_FAILED; |
| if (TrackedCallback::IsPending(sendto_callback_)) |
| return PP_ERROR_INPROGRESS; |
| |
| if (num_bytes > kMaxWriteSize) |
| num_bytes = kMaxWriteSize; |
| |
| sendto_callback_ = callback; |
| |
| // Send the request, the browser will call us back via SendToReply. |
| Call<PpapiPluginMsg_UDPSocket_SendToReply>( |
| BROWSER, |
| PpapiHostMsg_UDPSocket_SendTo(std::string(buffer, num_bytes), *addr), |
| base::Bind(&UDPSocketResourceBase::OnPluginMsgSendToReply, |
| base::Unretained(this)), |
| callback); |
| return PP_OK_COMPLETIONPENDING; |
| } |
| |
| void UDPSocketResourceBase::CloseImpl() { |
| if(closed_) |
| return; |
| |
| bound_ = false; |
| closed_ = true; |
| |
| Post(BROWSER, PpapiHostMsg_UDPSocket_Close()); |
| |
| PostAbortIfNecessary(&bind_callback_); |
| PostAbortIfNecessary(&recvfrom_callback_); |
| PostAbortIfNecessary(&sendto_callback_); |
| |
| read_buffer_ = NULL; |
| bytes_to_read_ = -1; |
| } |
| |
| void UDPSocketResourceBase::PostAbortIfNecessary( |
| scoped_refptr<TrackedCallback>* callback) { |
| if (TrackedCallback::IsPending(*callback)) |
| (*callback)->PostAbort(); |
| } |
| |
| void UDPSocketResourceBase::OnPluginMsgSetOptionReply( |
| scoped_refptr<TrackedCallback> callback, |
| const ResourceMessageReplyParams& params) { |
| if (TrackedCallback::IsPending(callback)) |
| RunCallback(callback, params.result()); |
| } |
| |
| void UDPSocketResourceBase::OnPluginMsgBindReply( |
| const ResourceMessageReplyParams& params, |
| const PP_NetAddress_Private& bound_addr) { |
| // It is possible that |bind_callback_| is pending while |closed_| is true: |
| // CloseImpl() has been called, but a BindReply came earlier than the task to |
| // abort |bind_callback_|. We don't want to update |bound_| or |bound_addr_| |
| // in that case. |
| if (!TrackedCallback::IsPending(bind_callback_) || closed_) |
| return; |
| |
| if (params.result() == PP_OK) |
| bound_ = true; |
| bound_addr_ = bound_addr; |
| RunCallback(bind_callback_, params.result()); |
| } |
| |
| void UDPSocketResourceBase::OnPluginMsgRecvFromReply( |
| PP_Resource* output_addr, |
| const ResourceMessageReplyParams& params, |
| const std::string& data, |
| const PP_NetAddress_Private& addr) { |
| // It is possible that |recvfrom_callback_| is pending while |read_buffer_| is |
| // NULL: CloseImpl() has been called, but a RecvFromReply came earlier than |
| // the task to abort |recvfrom_callback_|. We shouldn't access the buffer in |
| // that case. The user may have released it. |
| if (!TrackedCallback::IsPending(recvfrom_callback_) || !read_buffer_) |
| return; |
| |
| int32_t result = params.result(); |
| if (result == PP_OK && output_addr) { |
| thunk::EnterResourceCreationNoLock enter(pp_instance()); |
| if (enter.succeeded()) { |
| *output_addr = enter.functions()->CreateNetAddressFromNetAddressPrivate( |
| pp_instance(), addr); |
| } else { |
| result = PP_ERROR_FAILED; |
| } |
| } |
| |
| if (result == PP_OK) { |
| CHECK_LE(static_cast<int32_t>(data.size()), bytes_to_read_); |
| if (!data.empty()) |
| memcpy(read_buffer_, data.c_str(), data.size()); |
| } |
| |
| read_buffer_ = NULL; |
| bytes_to_read_ = -1; |
| recvfrom_addr_ = addr; |
| |
| if (result == PP_OK) |
| RunCallback(recvfrom_callback_, static_cast<int32_t>(data.size())); |
| else |
| RunCallback(recvfrom_callback_, result); |
| } |
| |
| void UDPSocketResourceBase::OnPluginMsgSendToReply( |
| const ResourceMessageReplyParams& params, |
| int32_t bytes_written) { |
| if (!TrackedCallback::IsPending(sendto_callback_)) |
| return; |
| |
| if (params.result() == PP_OK) |
| RunCallback(sendto_callback_, bytes_written); |
| else |
| RunCallback(sendto_callback_, params.result()); |
| } |
| |
| void UDPSocketResourceBase::RunCallback(scoped_refptr<TrackedCallback> callback, |
| int32_t pp_result) { |
| callback->Run(ConvertNetworkAPIErrorForCompatibility(pp_result, |
| private_api_)); |
| } |
| |
| } // namespace proxy |
| } // namespace ppapi |