10 #include <apps/tcpip/socket.h> 11 #include <sys/simulation/simulation_controller.h> 20 #include <sys/types.h> 21 #include <sys/socket.h> 22 #include <netinet/in.h> 23 #include <netinet/tcp.h> 24 #include <arpa/inet.h> 38 #define vsnprintf _vsnprintf 55 extern "C" void init_tcpip( shawn::SimulationController& sc )
66 bool Socket::init_windows_sockets_ =
true;
67 bool Socket::windows_sockets_initialized_ =
false;
68 int Socket::instance_count_ = 0;
105 if( init_windows_sockets_ && !windows_sockets_initialized_ )
108 if( WSAStartup(MAKEWORD(1, 1), &wsaData) != 0 )
110 windows_sockets_initialized_ =
true;
121 int sock =
static_cast<int>(socket( AF_INET, SOCK_STREAM, 0 ));
122 struct sockaddr_in self;
123 memset(&
self, 0,
sizeof(
self));
124 self.sin_family = AF_INET;
125 self.sin_port = htons(0);
126 self.sin_addr.s_addr = htonl(INADDR_ANY);
128 socklen_t address_len =
sizeof(
self);
130 if ( bind(sock, (
struct sockaddr*) &
self, address_len) < 0)
133 if ( getsockname(sock, (
struct sockaddr*) &
self, &address_len) < 0)
134 BailOnSocketError(
"tcpip::Socket::getFreeSocketPort() Unable to get socket name");
135 const int port = ntohs(
self.sin_port);
137 ::closesocket( sock );
168 && init_windows_sockets_ && instance_count_ == 0 )
170 windows_sockets_initialized_ =
false;
180 int e = WSAGetLastError();
181 std::string msg = GetWinsockErrorString( e );
183 std::string msg = strerror( errno );
205 FD_SET( (
unsigned int)sock, &fds );
211 int r = select( sock+1, &fds,
nullptr,
nullptr, &tv);
216 if( FD_ISSET( sock, &fds ) )
225 atoaddr( std::string address,
struct sockaddr_in& addr)
228 struct addrinfo *servinfo;
230 struct addrinfo hints;
231 memset(&hints, 0,
sizeof hints);
232 hints.ai_family = AF_INET;
233 hints.ai_socktype = SOCK_STREAM;
234 hints.ai_flags = AI_PASSIVE;
236 if ((status = getaddrinfo(address.c_str(),
nullptr, &hints, &servinfo)) != 0) {
242 for (
struct addrinfo *p = servinfo; p !=
nullptr; p = p->ai_next) {
243 if (p->ai_family == AF_INET) {
244 addr = *(
struct sockaddr_in *)p->ai_addr;
245 addr.sin_port = htons((
unsigned short)
port_);
251 freeaddrinfo(servinfo);
265 struct sockaddr_in client_addr;
267 int addrlen =
sizeof(client_addr);
269 socklen_t addrlen =
sizeof(client_addr);
274 struct sockaddr_in self;
277 server_socket_ =
static_cast<int>(socket( AF_INET, SOCK_STREAM, 0 ));
278 if( server_socket_ < 0 )
289 setsockopt(server_socket_, SOL_SOCKET, SO_REUSEADDR, &reuseaddr,
sizeof(reuseaddr));
294 memset(&
self, 0,
sizeof(
self));
295 self.sin_family = AF_INET;
296 self.sin_port = htons((
unsigned short)
port_);
297 self.sin_addr.s_addr = htonl(INADDR_ANY);
300 if ( bind(server_socket_, (
struct sockaddr*)&
self,
sizeof(
self)) != 0 )
305 if ( listen(server_socket_, 10) == -1 )
317 setsockopt(
socket_, IPPROTO_TCP, TCP_NODELAY, (
const char*)&x,
sizeof(x));
339 if (ioctlsocket(
server_socket_, FIONBIO, &NonBlock) == SOCKET_ERROR)
340 BailOnSocketError(
"tcpip::Socket::set_blocking() Unable to initialize non blocking I/O");
365 socket_ =
static_cast<int>(socket( PF_INET, SOCK_STREAM, 0 ));
369 if( ::
connect(
socket_, (sockaddr
const*)&address,
sizeof(address) ) < 0 )
375 setsockopt(
socket_, IPPROTO_TCP, TCP_NODELAY, (
const char*)&x,
sizeof(x));
400 send(
const std::vector<unsigned char> &buffer)
407 size_t numbytes = buffer.size();
408 unsigned char const *bufPtr = &buffer[0];
409 while( numbytes > 0 )
412 int bytesSent =
::send(
socket_, (
const char*)bufPtr, static_cast<int>(numbytes), 0 );
419 numbytes -= bytesSent;
432 int length =
static_cast<int>(b.
size());
439 std::vector<unsigned char> msg;
440 msg.insert(msg.end(), length_storage.
begin(), length_storage.
end());
441 msg.insert(msg.end(), b.
begin(), b.
end());
453 const int bytesReceived = recv(
socket_, (
char*)buffer, static_cast<int>(len), 0 );
455 const int bytesReceived =
static_cast<int>(recv(
socket_, buffer, len, 0 ));
457 if( bytesReceived == 0 )
458 throw SocketException(
"tcpip::Socket::recvAndCheck @ recv: peer shutdown" );
459 if( bytesReceived < 0 )
462 return static_cast<size_t>(bytesReceived);
475 len -= bytesReceived;
476 buffer += bytesReceived;
489 std::cerr << label <<
" " << buffer.size() <<
" bytes via tcpip::Socket: [";
491 const std::vector<unsigned char>::const_iterator end = buffer.end();
492 for (std::vector<unsigned char>::const_iterator it = buffer.begin(); end != it; ++it)
493 std::cerr <<
" " << static_cast<int>(*it) <<
" ";
494 std::cerr <<
"]" << std::endl;
500 std::vector<unsigned char>
504 std::vector<unsigned char> buffer;
512 buffer.resize(bufSize);
513 const size_t bytesReceived =
recvAndCheck(&buffer[0], bufSize);
515 buffer.resize(bytesReceived);
532 std::vector<unsigned char> buffer(
lengthLen);
537 const int totalLen = length_storage.
readInt();
541 buffer.resize(totalLen);
548 msg.
writePacket(&buffer[lengthLen], totalLen - lengthLen);
578 GetWinsockErrorString(
int err)
583 case 0:
return "No error";
584 case WSAEINTR:
return "Interrupted system call";
585 case WSAEBADF:
return "Bad file number";
586 case WSAEACCES:
return "Permission denied";
587 case WSAEFAULT:
return "Bad address";
588 case WSAEINVAL:
return "Invalid argument";
589 case WSAEMFILE:
return "Too many open sockets";
590 case WSAEWOULDBLOCK:
return "Operation would block";
591 case WSAEINPROGRESS:
return "Operation now in progress";
592 case WSAEALREADY:
return "Operation already in progress";
593 case WSAENOTSOCK:
return "Socket operation on non-socket";
594 case WSAEDESTADDRREQ:
return "Destination address required";
595 case WSAEMSGSIZE:
return "Message too long";
596 case WSAEPROTOTYPE:
return "Protocol wrong type for socket";
597 case WSAENOPROTOOPT:
return "Bad protocol option";
598 case WSAEPROTONOSUPPORT:
return "Protocol not supported";
599 case WSAESOCKTNOSUPPORT:
return "Socket type not supported";
600 case WSAEOPNOTSUPP:
return "Operation not supported on socket";
601 case WSAEPFNOSUPPORT:
return "Protocol family not supported";
602 case WSAEAFNOSUPPORT:
return "Address family not supported";
603 case WSAEADDRINUSE:
return "Address already in use";
604 case WSAEADDRNOTAVAIL:
return "Can't assign requested address";
605 case WSAENETDOWN:
return "Network is down";
606 case WSAENETUNREACH:
return "Network is unreachable";
607 case WSAENETRESET:
return "Net Socket reset";
608 case WSAECONNABORTED:
return "Software caused tcpip::Socket abort";
609 case WSAECONNRESET:
return "Socket reset by peer";
610 case WSAENOBUFS:
return "No buffer space available";
611 case WSAEISCONN:
return "Socket is already connected";
612 case WSAENOTCONN:
return "Socket is not connected";
613 case WSAESHUTDOWN:
return "Can't send after socket shutdown";
614 case WSAETOOMANYREFS:
return "Too many references, can't splice";
615 case WSAETIMEDOUT:
return "Socket timed out";
616 case WSAECONNREFUSED:
return "Socket refused";
617 case WSAELOOP:
return "Too many levels of symbolic links";
618 case WSAENAMETOOLONG:
return "File name too long";
619 case WSAEHOSTDOWN:
return "Host is down";
620 case WSAEHOSTUNREACH:
return "No route to host";
621 case WSAENOTEMPTY:
return "Directory not empty";
622 case WSAEPROCLIM:
return "Too many processes";
623 case WSAEUSERS:
return "Too many users";
624 case WSAEDQUOT:
return "Disc quota exceeded";
625 case WSAESTALE:
return "Stale NFS file handle";
626 case WSAEREMOTE:
return "Too many levels of remote in path";
627 case WSASYSNOTREADY:
return "Network system is unavailable";
628 case WSAVERNOTSUPPORTED:
return "Winsock version out of range";
629 case WSANOTINITIALISED:
return "WSAStartup not yet called";
630 case WSAEDISCON:
return "Graceful shutdown in progress";
631 case WSAHOST_NOT_FOUND:
return "Host not found";
632 case WSANO_DATA:
return "No host data of that type was found";
642 #endif // BUILD_TCPIP
StorageType::const_iterator end() const
bool receiveExact(Storage &)
Receive a complete TraCI message from Socket::socket_.
std::vector< unsigned char > receive(int bufSize=2048)
Receive up to bufSize available bytes from Socket::socket_.
virtual void writePacket(unsigned char *packet, int length)
static const int lengthLen
Length of the message length part of a TraCI message.
Socket(std::string host, int port)
Constructor that prepare to connect to host:port.
bool has_client_connection() const
virtual void writeInt(int)
void connect()
Connects to host_:port_.
void receiveComplete(unsigned char *const buffer, std::size_t len) const
Receive len bytes from Socket::socket_.
void printBufferOnVerbose(const std::vector< unsigned char > buffer, const std::string &label) const
Print label and buffer to stderr if Socket::verbose_ is set.
static int getFreeSocketPort()
Returns an free port on the system.
Socket * accept(const bool create=false)
Wait for a incoming connection to port_.
StorageType::size_type size() const
void send(const std::vector< unsigned char > &buffer)
void sendExact(const Storage &)
StorageType::const_iterator begin() const
bool atoaddr(std::string, struct sockaddr_in &addr)
static void BailOnSocketError(std::string context)
bool datawaiting(int sock) const
size_t recvAndCheck(unsigned char *const buffer, std::size_t len) const
Receive up to len available bytes from Socket::socket_.