diff options
Diffstat (limited to 'LibOVR/Src/Net/OVR_Unix_Socket.cpp')
| -rw-r--r-- | LibOVR/Src/Net/OVR_Unix_Socket.cpp | 600 |
1 files changed, 600 insertions, 0 deletions
diff --git a/LibOVR/Src/Net/OVR_Unix_Socket.cpp b/LibOVR/Src/Net/OVR_Unix_Socket.cpp new file mode 100644 index 0000000..6f2a678 --- /dev/null +++ b/LibOVR/Src/Net/OVR_Unix_Socket.cpp @@ -0,0 +1,600 @@ +/************************************************************************************ + +Filename : OVR_Unix_Socket.cpp +Content : Berkley sockets networking implementation +Created : July 1, 2014 +Authors : Kevin Jenkins + +Copyright : Copyright 2014 Oculus VR, LLC All Rights reserved. + +Licensed under the Oculus VR Rift SDK License Version 3.2 (the "License"); +you may not use the Oculus VR Rift SDK except in compliance with the License, +which is provided at the time of installation or download, or which +otherwise accompanies this software in either electronic or hard copy form. + +You may obtain a copy of the License at + +http://www.oculusvr.com/licenses/LICENSE-3.2 + +Unless required by applicable law or agreed to in writing, the Oculus VR SDK +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. + +************************************************************************************/ + +#include "OVR_Unix_Socket.h" +#include "../Kernel/OVR_Std.h" +#include "../Kernel/OVR_Allocator.h" +#include "../Kernel/OVR_Threads.h" // Thread::MSleep +#include "../Kernel/OVR_Log.h" + +#include <errno.h> + +namespace OVR { namespace Net { + +//----------------------------------------------------------------------------- +// BerkleySocket + +void BerkleySocket::Close() +{ + if (TheSocket != INVALID_SOCKET) + { + close(TheSocket); + TheSocket = INVALID_SOCKET; + } +} + +SInt32 BerkleySocket::GetSockname(SockAddr *pSockAddrOut) +{ + struct sockaddr_in6 sa; + memset(&sa,0,sizeof(sa)); + socklen_t size = sizeof(sa); + SInt32 i = getsockname(TheSocket, (sockaddr*)&sa, &size); + if (i>=0) + { + pSockAddrOut->Set(&sa); + } + return i; +} + + +//----------------------------------------------------------------------------- +// BitStream overloads for SockAddr + +BitStream& operator<<(BitStream& out, SockAddr& in) +{ + out.WriteBits((const unsigned char*) &in.Addr6, sizeof(in.Addr6)*8, true); + return out; +} + +BitStream& operator>>(BitStream& in, SockAddr& out) +{ + bool success = in.ReadBits((unsigned char*) &out.Addr6, sizeof(out.Addr6)*8, true); + OVR_ASSERT(success); + OVR_UNUSED(success); + return in; +} + + +//----------------------------------------------------------------------------- +// SockAddr + +SockAddr::SockAddr() +{ +} + +SockAddr::SockAddr(SockAddr* address) +{ + Set(&address->Addr6); +} + +SockAddr::SockAddr(sockaddr_storage* storage) +{ + Set(storage); +} + +SockAddr::SockAddr(sockaddr_in6* address) +{ + Set(address); +} + +SockAddr::SockAddr(const char* hostAddress, UInt16 port, int sockType) +{ + Set(hostAddress, port, sockType); +} + +void SockAddr::Set(const sockaddr_storage* storage) +{ + memcpy(&Addr6, storage, sizeof(Addr6)); +} + +void SockAddr::Set(const sockaddr_in6* address) +{ + memcpy(&Addr6, address, sizeof(Addr6)); +} + +void SockAddr::Set(const char* hostAddress, UInt16 port, int sockType) +{ + memset(&Addr6, 0, sizeof(Addr6)); + + struct addrinfo hints; + + // make sure the struct is empty + memset(&hints, 0, sizeof (addrinfo)); + + hints.ai_socktype = sockType; // SOCK_DGRAM or SOCK_STREAM + hints.ai_flags = AI_PASSIVE; // fill in my IP for me + hints.ai_family = AF_UNSPEC ; + + if (SOCK_DGRAM == sockType) + { + hints.ai_protocol = IPPROTO_UDP; + } + else if (SOCK_STREAM == sockType) + { + hints.ai_protocol = IPPROTO_TCP; + } + + struct addrinfo* servinfo = NULL; // will point to the results + + char portStr[32]; + OVR_itoa(port, portStr, sizeof(portStr), 10); + int errcode = getaddrinfo(hostAddress, portStr, &hints, &servinfo); + + if (0 != errcode) + { + OVR::LogError("getaddrinfo error: %s", gai_strerror(errcode)); + } + + OVR_ASSERT(servinfo); + + if (servinfo) + { + memcpy(&Addr6, servinfo->ai_addr, sizeof(Addr6)); + + freeaddrinfo(servinfo); + } +} + +UInt16 SockAddr::GetPort() +{ + return htons(Addr6.sin6_port); +} + +String SockAddr::ToString(bool writePort, char portDelineator) const +{ + char dest[INET6_ADDRSTRLEN + 1]; + + int ret = getnameinfo((struct sockaddr*)&Addr6, + sizeof(struct sockaddr_in6), + dest, + INET6_ADDRSTRLEN, + NULL, + 0, + NI_NUMERICHOST); + if (ret != 0) + { + dest[0] = '\0'; + } + + if (writePort) + { + unsigned char ch[2]; + ch[0]=portDelineator; + ch[1]=0; + OVR_strcat(dest, 16, (const char*) ch); + OVR_itoa(ntohs(Addr6.sin6_port), dest+strlen(dest), 16, 10); + } + + return String(dest); +} +bool SockAddr::IsLocalhost() const +{ + static const unsigned char localhost_bytes[] = + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 }; + + return memcmp(Addr6.sin6_addr.s6_addr, localhost_bytes, 16) == 0; +} +bool SockAddr::operator==( const SockAddr& right ) const +{ + return memcmp(&Addr6, &right.Addr6, sizeof(Addr6)) == 0; +} + +bool SockAddr::operator!=( const SockAddr& right ) const +{ + return !(*this == right); +} + +bool SockAddr::operator>( const SockAddr& right ) const +{ + return memcmp(&Addr6, &right.Addr6, sizeof(Addr6)) > 0; +} + +bool SockAddr::operator<( const SockAddr& right ) const +{ + return memcmp(&Addr6, &right.Addr6, sizeof(Addr6)) < 0; +} + + +// Returns true on success +static bool SetSocketOptions(SocketHandle sock) +{ + bool failed = false; + int sock_opt; + int sockError = 0; + + // This doubles the max throughput rate + sock_opt=1024*256; + sockError = setsockopt(sock, SOL_SOCKET, SO_RCVBUF, ( char * ) & sock_opt, sizeof ( sock_opt ) ); + if (sockError != 0) + { + int errsv = errno; + OVR::LogError("[Socket] Failed SO_RCVBUF setsockopt, errno: %d", errsv); + failed = true; + } + + // This doesn't make much difference: 10% maybe + // Not supported on console 2 + sock_opt=1024*16; + sockError = setsockopt(sock, SOL_SOCKET, SO_SNDBUF, ( char * ) & sock_opt, sizeof ( sock_opt ) ); + if (sockError != 0) + { + int errsv = errno; + OVR::LogError("[Socket] Failed SO_SNDBUF setsockopt, errno: %d", errsv); + failed = true; + } + + // NOTE: This should be OVR_OS_BSD, not Mac. +#ifdef OVR_OS_MAC + int value = 1; + sockError = setsockopt(sock, SOL_SOCKET, SO_NOSIGPIPE, &value, sizeof(value)); + if (sockError != 0) + { + int errsv = errno; + OVR::LogError("[Socket] Failed SO_NOSIGPIPE setsockopt, errno: %d", errsv); + failed = true; + } +#endif + + // Reuse address is only needed for posix platforms, as it is the default + // on Windows platforms. + int optval = 1; + sockError = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(int)); + if (sockError != 0) + { + int errsv = errno; + OVR::LogError("[Socket] Failed SO_REUSEADDR setsockopt, errno: %d", errsv); + failed = true; + } + + return !failed; +} + +void _Ioctlsocket(SocketHandle sock, unsigned long nonblocking) +{ + int flags = fcntl(sock, F_GETFL, 0); + if (flags < 0) return; // return false + if (nonblocking == 0) { flags &= ~O_NONBLOCK; } + else { flags |= O_NONBLOCK; } + fcntl(sock, F_SETFL, flags); +} + +static SocketHandle BindShared(int ai_family, int ai_socktype, BerkleyBindParameters *pBindParameters) +{ + SocketHandle sock; + + struct addrinfo hints; + memset(&hints, 0, sizeof (addrinfo)); // make sure the struct is empty + hints.ai_family = ai_family; + hints.ai_socktype = ai_socktype; + hints.ai_flags = AI_PASSIVE; // fill in my IP for me + struct addrinfo *servinfo=0, *aip; // will point to the results + char portStr[32]; + OVR_itoa(pBindParameters->Port, portStr, sizeof(portStr), 10); + + int errcode = 0; + if (!pBindParameters->Address.IsEmpty()) + errcode = getaddrinfo(pBindParameters->Address.ToCStr(), portStr, &hints, &servinfo); + else + errcode = getaddrinfo(0, portStr, &hints, &servinfo); + + if (0 != errcode) + { + OVR::LogError("getaddrinfo error: %s", gai_strerror(errcode)); + } + + for (aip = servinfo; aip != NULL; aip = aip->ai_next) + { + // Open socket. The address type depends on what + // getaddrinfo() gave us. + sock = socket(aip->ai_family, aip->ai_socktype, aip->ai_protocol); + if (sock != 0) + { + SetSocketOptions(sock); + int ret = bind( sock, aip->ai_addr, (int) aip->ai_addrlen ); + if (ret>=0) + { + // The actual socket is always non-blocking + // I control blocking or not using WSAEventSelect + _Ioctlsocket(sock, 1); + freeaddrinfo(servinfo); + return sock; + } + else + { + close(sock); + } + } + } + + if (servinfo) { freeaddrinfo(servinfo); } + return INVALID_SOCKET; +} + + +//----------------------------------------------------------------------------- +// UDPSocket + +UDPSocket::UDPSocket() +{ + RecvBuf = new UByte[RecvBufSize]; +} + +UDPSocket::~UDPSocket() +{ + delete[] RecvBuf; +} + +SocketHandle UDPSocket::Bind(BerkleyBindParameters *pBindParameters) +{ + SocketHandle s = BindShared(AF_INET6, SOCK_DGRAM, pBindParameters); + if (s < 0) + return s; + + Close(); + TheSocket = s; + + return TheSocket; +} + +void UDPSocket::OnRecv(SocketEvent_UDP* eventHandler, UByte* pData, int bytesRead, SockAddr* address) +{ + eventHandler->UDP_OnRecv(this, pData, bytesRead, address); +} + +int UDPSocket::Send(const void* pData, int bytes, SockAddr* address) +{ + // NOTE: This should be OVR_OS_BSD +#ifdef OVR_OS_MAC + int flags = 0; +#else + int flags = MSG_NOSIGNAL; +#endif + + return (int)sendto(TheSocket, (const char*)pData, bytes, flags, (const sockaddr*)&address->Addr6, sizeof(address->Addr6)); +} + +void UDPSocket::Poll(SocketEvent_UDP *eventHandler) +{ + struct sockaddr_storage win32_addr; + socklen_t fromlen; + int bytesRead; + + // FIXME: Implement blocking poll wait for UDP + + // While some bytes are read, + while (fromlen = sizeof(win32_addr), // Must set fromlen each time + bytesRead = (int)recvfrom(TheSocket, (char*)RecvBuf, RecvBufSize, 0, (sockaddr*)&win32_addr, &fromlen), + bytesRead > 0) + { + SockAddr address(&win32_addr); // Wrap address + + OnRecv(eventHandler, RecvBuf, bytesRead, &address); + } +} + + +//----------------------------------------------------------------------------- +// TCPSocket + +TCPSocket::TCPSocket() +{ + IsConnecting = false; + IsListenSocket = false; +} +TCPSocket::TCPSocket(SocketHandle boundHandle, bool isListenSocket) +{ + TheSocket = boundHandle; + IsListenSocket = isListenSocket; + IsConnecting = false; + SetSocketOptions(TheSocket); + + // The actual socket is always non-blocking + _Ioctlsocket(TheSocket, 1); +} + +TCPSocket::~TCPSocket() +{ +} + +void TCPSocket::OnRecv(SocketEvent_TCP* eventHandler, UByte* pData, int bytesRead) +{ + eventHandler->TCP_OnRecv(this, pData, bytesRead); +} + +SocketHandle TCPSocket::Bind(BerkleyBindParameters* pBindParameters) +{ + SocketHandle s = BindShared(AF_INET6, SOCK_STREAM, pBindParameters); + if (s < 0) + return s; + + Close(); + + SetBlockingTimeout(pBindParameters->blockingTimeout); + TheSocket = s; + + return TheSocket; +} + +int TCPSocket::Listen() +{ + if (IsListenSocket) + { + return 0; + } + + int i = listen(TheSocket, SOMAXCONN); + if (i >= 0) + { + IsListenSocket = true; + } + + return i; +} + +int TCPSocket::Connect(SockAddr* address) +{ + int retval; + + retval = connect(TheSocket, (struct sockaddr *) &address->Addr6, sizeof(address->Addr6)); + if (retval < 0) + { + int errsv = errno; + // EINPROGRESS should not be checked on windows but should + // be checked on POSIX platforms. + if (errsv == EWOULDBLOCK || errsv == EINPROGRESS) + { + IsConnecting = true; + return 0; + } + + OVR::LogText( "TCPSocket::Connect failed:Error code - %d\n", errsv ); + } + + return retval; +} + +int TCPSocket::Send(const void* pData, int bytes) +{ + if (bytes <= 0) + { + return 0; + } + else + { + return (int)send(TheSocket, (const char*)pData, bytes, 0); + } +} + + +//// TCPSocketPollState + +TCPSocketPollState::TCPSocketPollState() +{ + FD_ZERO(&readFD); + FD_ZERO(&exceptionFD); + FD_ZERO(&writeFD); + largestDescriptor = INVALID_SOCKET; +} + +bool TCPSocketPollState::IsValid() const +{ + return largestDescriptor != INVALID_SOCKET; +} + +void TCPSocketPollState::Add(TCPSocket* tcpSocket) +{ + if (!tcpSocket) + { + return; + } + + SocketHandle handle = tcpSocket->GetSocketHandle(); + + if (handle == INVALID_SOCKET) + { + return; + } + + if (largestDescriptor == INVALID_SOCKET || + largestDescriptor < handle) + { + largestDescriptor = handle; + } + + FD_SET(handle, &readFD); + FD_SET(handle, &exceptionFD); + + if (tcpSocket->IsConnecting) + { + FD_SET(handle, &writeFD); + } +} + +bool TCPSocketPollState::Poll(long usec, long seconds) +{ + timeval tv; + tv.tv_sec = seconds; + tv.tv_usec = (int)usec; + + return select(largestDescriptor + 1, &readFD, &writeFD, &exceptionFD, &tv) > 0; +} + +void TCPSocketPollState::HandleEvent(TCPSocket* tcpSocket, SocketEvent_TCP* eventHandler) +{ + if (!tcpSocket || !eventHandler) + { + return; + } + + SocketHandle handle = tcpSocket->GetSocketHandle(); + + if (tcpSocket->IsConnecting && FD_ISSET(handle, &writeFD)) + { + tcpSocket->IsConnecting = false; + eventHandler->TCP_OnConnected(tcpSocket); + } + + if (FD_ISSET(handle, &readFD)) + { + if (!tcpSocket->IsListenSocket) + { + static const int BUFF_SIZE = 8096; + char data[BUFF_SIZE]; + + int bytesRead = (int)recv(handle, data, BUFF_SIZE, 0); + if (bytesRead > 0) + { + tcpSocket->OnRecv(eventHandler, (UByte*)data, bytesRead); + } + else // Disconnection event: + { + tcpSocket->IsConnecting = false; + eventHandler->TCP_OnClosed(tcpSocket); + } + } + else + { + struct sockaddr_storage sockAddr; + socklen_t sockAddrSize = sizeof(sockAddr); + + SocketHandle newSock = accept(handle, (sockaddr*)&sockAddr, (socklen_t*)&sockAddrSize); + if (newSock > 0) + { + SockAddr sa(&sockAddr); + eventHandler->TCP_OnAccept(tcpSocket, &sa, newSock); + } + } + } + + if (FD_ISSET(handle, &exceptionFD)) + { + tcpSocket->IsConnecting = false; + eventHandler->TCP_OnClosed(tcpSocket); + } +} + + +}} // namespace OVR::Net |