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jedi-academy/codemp/win32/win_net.cpp
Jonathan Gray 039ef2cb4a ditch dos style newlines
2013-04-23 15:21:39 +10:00

1222 lines
28 KiB
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// net_wins.c
//Anything above this #include will be ignored by the compiler
#include "../qcommon/exe_headers.h"
#include "win_local.h"
static WSADATA winsockdata;
static qboolean winsockInitialized = qfalse;
static qboolean usingSocks = qfalse;
static qboolean networkingEnabled = qfalse;
static cvar_t *net_noudp;
static cvar_t *net_noipx;
static cvar_t *net_forcenonlocal;
static cvar_t *net_socksEnabled;
static cvar_t *net_socksServer;
static cvar_t *net_socksPort;
static cvar_t *net_socksUsername;
static cvar_t *net_socksPassword;
static struct sockaddr socksRelayAddr;
#ifdef _XBOX
SOCKET v_socket = INVALID_SOCKET;
#endif
static SOCKET ip_socket = INVALID_SOCKET;
static SOCKET socks_socket = INVALID_SOCKET;
static SOCKET ipx_socket = INVALID_SOCKET;
#define MAX_IPS 16
static int numIP;
static byte localIP[MAX_IPS][4];
//=============================================================================
/*
====================
NET_ErrorString
====================
*/
char *NET_ErrorString( void ) {
int code;
code = WSAGetLastError();
switch( code ) {
case WSAEINTR: return "WSAEINTR";
case WSAEBADF: return "WSAEBADF";
case WSAEACCES: return "WSAEACCES";
case WSAEDISCON: return "WSAEDISCON";
case WSAEFAULT: return "WSAEFAULT";
case WSAEINVAL: return "WSAEINVAL";
case WSAEMFILE: return "WSAEMFILE";
case WSAEWOULDBLOCK: return "WSAEWOULDBLOCK";
case WSAEINPROGRESS: return "WSAEINPROGRESS";
case WSAEALREADY: return "WSAEALREADY";
case WSAENOTSOCK: return "WSAENOTSOCK";
case WSAEDESTADDRREQ: return "WSAEDESTADDRREQ";
case WSAEMSGSIZE: return "WSAEMSGSIZE";
case WSAEPROTOTYPE: return "WSAEPROTOTYPE";
case WSAENOPROTOOPT: return "WSAENOPROTOOPT";
case WSAEPROTONOSUPPORT: return "WSAEPROTONOSUPPORT";
case WSAESOCKTNOSUPPORT: return "WSAESOCKTNOSUPPORT";
case WSAEOPNOTSUPP: return "WSAEOPNOTSUPP";
case WSAEPFNOSUPPORT: return "WSAEPFNOSUPPORT";
case WSAEAFNOSUPPORT: return "WSAEAFNOSUPPORT";
case WSAEADDRINUSE: return "WSAEADDRINUSE";
case WSAEADDRNOTAVAIL: return "WSAEADDRNOTAVAIL";
case WSAENETDOWN: return "WSAENETDOWN";
case WSAENETUNREACH: return "WSAENETUNREACH";
case WSAENETRESET: return "WSAENETRESET";
case WSAECONNABORTED: return "WSWSAECONNABORTEDAEINTR";
case WSAECONNRESET: return "WSAECONNRESET";
case WSAENOBUFS: return "WSAENOBUFS";
case WSAEISCONN: return "WSAEISCONN";
case WSAENOTCONN: return "WSAENOTCONN";
case WSAESHUTDOWN: return "WSAESHUTDOWN";
case WSAETOOMANYREFS: return "WSAETOOMANYREFS";
case WSAETIMEDOUT: return "WSAETIMEDOUT";
case WSAECONNREFUSED: return "WSAECONNREFUSED";
case WSAELOOP: return "WSAELOOP";
case WSAENAMETOOLONG: return "WSAENAMETOOLONG";
case WSAEHOSTDOWN: return "WSAEHOSTDOWN";
case WSASYSNOTREADY: return "WSASYSNOTREADY";
case WSAVERNOTSUPPORTED: return "WSAVERNOTSUPPORTED";
case WSANOTINITIALISED: return "WSANOTINITIALISED";
case WSAHOST_NOT_FOUND: return "WSAHOST_NOT_FOUND";
case WSATRY_AGAIN: return "WSATRY_AGAIN";
case WSANO_RECOVERY: return "WSANO_RECOVERY";
case WSANO_DATA: return "WSANO_DATA";
case WSAEHOSTUNREACH: return "WSAEHOSTUNREACH";
default: return "NO ERROR";
}
}
void NetadrToSockadr( netadr_t *a, struct sockaddr *s ) {
memset( s, 0, sizeof(*s) );
if( a->type == NA_BROADCAST ) {
((struct sockaddr_in *)s)->sin_family = AF_INET;
((struct sockaddr_in *)s)->sin_port = a->port;
((struct sockaddr_in *)s)->sin_addr.s_addr = INADDR_BROADCAST;
}
else if( a->type == NA_IP ) {
((struct sockaddr_in *)s)->sin_family = AF_INET;
((struct sockaddr_in *)s)->sin_addr.s_addr = *(int *)&a->ip;
((struct sockaddr_in *)s)->sin_port = a->port;
}
#ifndef _XBOX
else if( a->type == NA_IPX ) {
((struct sockaddr_ipx *)s)->sa_family = AF_IPX;
memcpy( ((struct sockaddr_ipx *)s)->sa_netnum, &a->ipx[0], 4 );
memcpy( ((struct sockaddr_ipx *)s)->sa_nodenum, &a->ipx[4], 6 );
((struct sockaddr_ipx *)s)->sa_socket = a->port;
}
else if( a->type == NA_BROADCAST_IPX ) {
((struct sockaddr_ipx *)s)->sa_family = AF_IPX;
memset( ((struct sockaddr_ipx *)s)->sa_netnum, 0, 4 );
memset( ((struct sockaddr_ipx *)s)->sa_nodenum, 0xff, 6 );
((struct sockaddr_ipx *)s)->sa_socket = a->port;
}
#endif //_XBOX
}
void SockadrToNetadr( struct sockaddr *s, netadr_t *a ) {
if (s->sa_family == AF_INET) {
a->type = NA_IP;
*(int *)&a->ip = ((struct sockaddr_in *)s)->sin_addr.s_addr;
a->port = ((struct sockaddr_in *)s)->sin_port;
}
#ifndef _XBOX
else if( s->sa_family == AF_IPX ) {
a->type = NA_IPX;
memcpy( &a->ipx[0], ((struct sockaddr_ipx *)s)->sa_netnum, 4 );
memcpy( &a->ipx[4], ((struct sockaddr_ipx *)s)->sa_nodenum, 6 );
a->port = ((struct sockaddr_ipx *)s)->sa_socket;
}
#endif //_XBOX
}
/*
=============
Sys_StringToAdr
idnewt
192.246.40.70
12121212.121212121212
=============
*/
#define DO(src,dest) \
copy[0] = s[src]; \
copy[1] = s[src + 1]; \
sscanf (copy, "%x", &val); \
((struct sockaddr_ipx *)sadr)->dest = val
qboolean Sys_StringToSockaddr( const char *s, struct sockaddr *sadr )
{
#ifndef _XBOX
struct hostent *h;
int val;
char copy[MAX_STRING_CHARS];
#endif
memset( sadr, 0, sizeof( *sadr ) );
// check for an IPX address
if( ( strlen( s ) == 21 ) && ( s[8] == '.' ) )
{
#ifdef _XBOX
assert(!"IPX not supported on XBox");
#else
((struct sockaddr_ipx *)sadr)->sa_family = AF_IPX;
((struct sockaddr_ipx *)sadr)->sa_socket = 0;
copy[2] = 0;
DO(0, sa_netnum[0]);
DO(2, sa_netnum[1]);
DO(4, sa_netnum[2]);
DO(6, sa_netnum[3]);
DO(9, sa_nodenum[0]);
DO(11, sa_nodenum[1]);
DO(13, sa_nodenum[2]);
DO(15, sa_nodenum[3]);
DO(17, sa_nodenum[4]);
DO(19, sa_nodenum[5]);
#endif
}
else
{
((struct sockaddr_in *)sadr)->sin_family = AF_INET;
((struct sockaddr_in *)sadr)->sin_port = 0;
if( s[0] >= '0' && s[0] <= '9' )
{
*(int *)&((struct sockaddr_in *)sadr)->sin_addr = inet_addr(s);
}
else
{
#ifdef _XBOX
assert(!"gethostbyname() - unsupported on XBox");
#else
if( ( h = gethostbyname( s ) ) == 0 ) { // NOT SUPPORTED ON XBOX!
return (qboolean)0;
}
*(int *)&((struct sockaddr_in *)sadr)->sin_addr = *(int *)h->h_addr_list[0];
#endif
}
}
return qtrue;
}
#undef DO
/*
=============
Sys_StringToAdr
idnewt
192.246.40.70
=============
*/
qboolean Sys_StringToAdr( const char *s, netadr_t *a ) {
struct sockaddr sadr;
if ( !Sys_StringToSockaddr( s, &sadr ) ) {
return qfalse;
}
SockadrToNetadr( &sadr, a );
return qtrue;
}
//=============================================================================
/*
==================
Sys_GetPacket
Never called by the game logic, just the system event queing
==================
*/
int recvfromCount;
qboolean Sys_GetPacket( netadr_t *net_from, msg_t *net_message ) {
int ret;
struct sockaddr from;
int fromlen;
SOCKET net_socket;
int protocol;
int err;
for( protocol = 0 ; protocol < 2 ; protocol++ ) {
if( protocol == 0 ) {
net_socket = ip_socket;
}
else {
net_socket = ipx_socket;
}
if( net_socket == INVALID_SOCKET) {
continue;
}
fromlen = sizeof(from);
recvfromCount++; // performance check
ret = recvfrom( net_socket, (char *)net_message->data, net_message->maxsize, 0, (struct sockaddr *)&from, &fromlen );
if (ret == SOCKET_ERROR)
{
err = WSAGetLastError();
if( err == WSAEWOULDBLOCK || err == WSAECONNRESET ) {
continue;
}
Com_Printf( "NET_GetPacket: %s\n", NET_ErrorString() );
continue;
}
#ifdef _XBOX
// VVFIXME - SOF2 calls into XBL class
// XBL_RcvdDataPacket(net_message->cursize);
#endif
if ( net_socket == ip_socket ) {
memset( ((struct sockaddr_in *)&from)->sin_zero, 0, 8 );
}
if ( usingSocks && net_socket == ip_socket && memcmp( &from, &socksRelayAddr, fromlen ) == 0 ) {
if ( ret < 10 || net_message->data[0] != 0 || net_message->data[1] != 0 || net_message->data[2] != 0 || net_message->data[3] != 1 ) {
continue;
}
net_from->type = NA_IP;
net_from->ip[0] = net_message->data[4];
net_from->ip[1] = net_message->data[5];
net_from->ip[2] = net_message->data[6];
net_from->ip[3] = net_message->data[7];
net_from->port = *(short *)&net_message->data[8];
net_message->readcount = 10;
}
else {
SockadrToNetadr( &from, net_from );
net_message->readcount = 0;
}
if( ret == net_message->maxsize ) {
Com_Printf( "Oversize packet from %s\n", NET_AdrToString (*net_from) );
continue;
}
net_message->cursize = ret;
return qtrue;
}
return qfalse;
}
//=============================================================================
#ifdef _XBOX
/*
==================
Sys_SendVoicePacket
==================
*/
void Sys_SendVoicePacket( int length, const void *data, netadr_t to ) {
int ret;
struct sockaddr addr;
// check for valid packet intentions (direct send or broadcast)
//
if( to.type != NA_IP && to.type != NA_BROADCAST )
{
Com_Error( ERR_FATAL, "Sys_SendVoicePacket: bad address type" );
return;
}
// check we have our voice socket set up
//
if( v_socket == INVALID_SOCKET) {
return;
}
NetadrToSockadr( &to, &addr );
#ifdef SOF2_METRICS
gXBL_NumberVoicePacketsSent++;
gXBL_SizeVoicePacketsSent += length;
#endif
/*if( usingSocks && to.type == NA_IP ) {
vsocksBuf[0] = 0; // reserved
vsocksBuf[1] = 0;
vsocksBuf[2] = 0; // fragment (not fragmented)
vsocksBuf[3] = 1; // address type: IPV4
*(int *)&vsocksBuf[4] = ((struct sockaddr_in *)&addr)->sin_addr.s_addr;
*(short *)&vsocksBuf[8] = ((struct sockaddr_in *)&addr)->sin_port;
memcpy( &vsocksBuf[10], data, length );
ret = sendto( v_socket, vsocksBuf, length+10, 0, &socksRelayAddr, sizeof(socksRelayAddr) );
}
else {*/
ret = sendto( v_socket, (const char *)data, length, 0, &addr, sizeof(addr) );
//}
if( ret == SOCKET_ERROR ) {
int err = WSAGetLastError();
// wouldblock is silent
if( err == WSAEWOULDBLOCK ) {
return;
}
// some PPP links do not allow broadcasts and return an error
if( ( err == WSAEADDRNOTAVAIL ) && ( ( to.type == NA_BROADCAST ) || ( to.type == NA_BROADCAST_IPX ) ) ) {
return;
}
Com_DPrintf( "NET_SendVoicePacket: %s\n", NET_ErrorString() );
}
}
#endif
static char socksBuf[4096];
/*
==================
Sys_SendPacket
==================
*/
void Sys_SendPacket( int length, const void *data, netadr_t to ) {
int ret;
struct sockaddr addr;
SOCKET net_socket;
#ifdef _XBOX
// VVFIXME - SOF2 calls into XBL code
// XBL_SentDataPacket( length );
#endif
if( to.type == NA_BROADCAST ) {
net_socket = ip_socket;
}
else if( to.type == NA_IP ) {
net_socket = ip_socket;
}
else if( to.type == NA_IPX ) {
#ifdef _XBOX
return;
#else
net_socket = ipx_socket;
#endif
}
else if( to.type == NA_BROADCAST_IPX ) {
#ifdef _XBOX
return;
#else
net_socket = ipx_socket;
#endif
}
else {
Com_Error( ERR_FATAL, "Sys_SendPacket: bad address type" );
return;
}
if( net_socket == INVALID_SOCKET) {
return;
}
NetadrToSockadr( &to, &addr );
#ifndef _XBOX
if( usingSocks && to.type == NA_IP ) {
socksBuf[0] = 0; // reserved
socksBuf[1] = 0;
socksBuf[2] = 0; // fragment (not fragmented)
socksBuf[3] = 1; // address type: IPV4
*(int *)&socksBuf[4] = ((struct sockaddr_in *)&addr)->sin_addr.s_addr;
*(short *)&socksBuf[8] = ((struct sockaddr_in *)&addr)->sin_port;
memcpy( &socksBuf[10], data, length );
ret = sendto( net_socket, socksBuf, length+10, 0, &socksRelayAddr, sizeof(socksRelayAddr) );
}
else {
#endif
ret = sendto( net_socket, (const char *)data, length, 0, &addr, sizeof(addr) );
#ifndef _XBOX
}
#endif
if( ret == SOCKET_ERROR ) {
int err = WSAGetLastError();
// wouldblock is silent
if( err == WSAEWOULDBLOCK ) {
return;
}
// some PPP links do not allow broadcasts and return an error
if( ( err == WSAEADDRNOTAVAIL ) && ( ( to.type == NA_BROADCAST ) || ( to.type == NA_BROADCAST_IPX ) ) ) {
return;
}
Com_Printf( "NET_SendPacket: %s\n", NET_ErrorString() );
}
}
//=============================================================================
/*
==================
Sys_IsLANAddress
LAN clients will have their rate var ignored
==================
*/
qboolean Sys_IsLANAddress( netadr_t adr ) {
int i;
if (!net_forcenonlocal)
{
net_forcenonlocal = Cvar_Get( "net_forcenonlocal", "0", 0 );
}
if (net_forcenonlocal && net_forcenonlocal->integer)
{
return qfalse;
}
if( adr.type == NA_LOOPBACK ) {
return qtrue;
}
if( adr.type == NA_IPX ) {
return qtrue;
}
if( adr.type != NA_IP ) {
return qfalse;
}
// choose which comparison to use based on the class of the address being tested
// any local adresses of a different class than the address being tested will fail based on the first byte
if( adr.ip[0] == 127 && adr.ip[1] == 0 && adr.ip[2] == 0 && adr.ip[3] == 1 ) {
return qtrue;
}
if ( (adr.ip[0] == 192 && adr.ip[1] == 168) ||
(adr.ip[0] == 10 && adr.ip[1] == 100) ||
(adr.ip[0] == 172 && adr.ip[1] == 16) )
{
return qtrue;
}
/*
// Class A
if( (adr.ip[0] & 0x80) == 0x00 ) {
for ( i = 0 ; i < numIP ; i++ ) {
if( adr.ip[0] == localIP[i][0] ) {
return qtrue;
}
}
// the RFC1918 class a block will pass the above test
return qfalse;
}
// Class B
if( (adr.ip[0] & 0xc0) == 0x80 ) {
for ( i = 0 ; i < numIP ; i++ ) {
if( adr.ip[0] == localIP[i][0] && adr.ip[1] == localIP[i][1] ) {
return qtrue;
}
// also check against the RFC1918 class b blocks
if( adr.ip[0] == 172 && localIP[i][0] == 172 && (adr.ip[1] & 0xf0) == 16 && (localIP[i][1] & 0xf0) == 16 ) {
return qtrue;
}
}
return qfalse;
}
*/
//we only look at class C since ISPs and Universities are using class A but we don't want to consider them on the same LAN.
// Class C
for ( i = 0 ; i < numIP ; i++ ) {
if( adr.ip[0] == localIP[i][0] && adr.ip[1] == localIP[i][1] && adr.ip[2] == localIP[i][2] ) {
return qtrue;
}
//check for both on a local lan type thing
if( adr.ip[0] == 10 && localIP[i][0] == 10 )
{
return qtrue;
}
// also check against the RFC1918 class c blocks
// if( adr.ip[0] == 192 && localIP[i][0] == 192 && adr.ip[1] == 168 && localIP[i][1] == 168 ) {
// return qtrue;
// }
}
return qfalse;
}
/*
==================
Sys_ShowIP
==================
*/
void Sys_ShowIP(void) {
int i;
for (i = 0; i < numIP; i++) {
Com_Printf( "IP: %i.%i.%i.%i\n", localIP[i][0], localIP[i][1], localIP[i][2], localIP[i][3] );
}
}
//=============================================================================
/*
====================
NET_IPSocket
====================
*/
SOCKET NET_IPSocket( char *net_interface, int port ) {
SOCKET newsocket;
struct sockaddr_in address;
qboolean _true = qtrue;
int i = 1;
int err;
if( net_interface ) {
Com_Printf( "Opening IP socket: %s:%i\n", net_interface, port );
}
else {
Com_Printf( "Opening IP socket: localhost:%i\n", port );
}
if( ( newsocket = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP ) ) == INVALID_SOCKET ) {
err = WSAGetLastError();
if( err != WSAEAFNOSUPPORT ) {
Com_Printf( "WARNING: UDP_OpenSocket: socket: %s\n", NET_ErrorString() );
}
return INVALID_SOCKET;
}
// make it non-blocking
if( ioctlsocket( newsocket, FIONBIO, (unsigned long *)&_true ) == SOCKET_ERROR ) {
Com_Printf( "WARNING: UDP_OpenSocket: ioctl FIONBIO: %s\n", NET_ErrorString() );
return INVALID_SOCKET;
}
// make it broadcast capable
if( setsockopt( newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof(i) ) == SOCKET_ERROR ) {
Com_Printf( "WARNING: UDP_OpenSocket: setsockopt SO_BROADCAST: %s\n", NET_ErrorString() );
return INVALID_SOCKET;
}
if( !net_interface || !net_interface[0] || !Q_stricmp(net_interface, "localhost") ) {
address.sin_addr.s_addr = INADDR_ANY;
}
else {
Sys_StringToSockaddr( net_interface, (struct sockaddr *)&address );
}
if( port == PORT_ANY ) {
address.sin_port = 0;
}
else {
address.sin_port = htons( (short)port );
}
address.sin_family = AF_INET;
if( bind( newsocket, (const struct sockaddr *)&address, sizeof(address) ) == SOCKET_ERROR ) {
Com_Printf( "WARNING: UDP_OpenSocket: bind: %s\n", NET_ErrorString() );
closesocket( newsocket );
return INVALID_SOCKET;
}
return newsocket;
}
/*
====================
NET_OpenSocks
====================
*/
void NET_OpenSocks( int port ) {
struct sockaddr_in address;
int err;
#ifndef _XBOX
struct hostent *h;
#endif
int len;
qboolean rfc1929;
unsigned char buf[64];
usingSocks = qfalse;
Com_Printf( "Opening connection to SOCKS server.\n" );
if ( ( socks_socket = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP ) ) == INVALID_SOCKET ) {
err = WSAGetLastError();
Com_Printf( "WARNING: NET_OpenSocks: socket: %s\n", NET_ErrorString() );
return;
}
#ifndef _XBOX
h = gethostbyname( net_socksServer->string );
if ( h == NULL ) {
err = WSAGetLastError();
Com_Printf( "WARNING: NET_OpenSocks: gethostbyname: %s\n", NET_ErrorString() );
return;
}
if ( h->h_addrtype != AF_INET ) {
Com_Printf( "WARNING: NET_OpenSocks: gethostbyname: address type was not AF_INET\n" );
return;
}
address.sin_family = AF_INET;
address.sin_addr.s_addr = *(int *)h->h_addr_list[0];
address.sin_port = htons( (short)net_socksPort->integer );
#else
address.sin_family = AF_INET;
address.sin_addr.s_addr = inet_addr(net_socksServer->string);
address.sin_port = htons( (short)net_socksPort->integer );
#endif //_XBOX
if ( connect( socks_socket, (struct sockaddr *)&address, sizeof( address ) ) == SOCKET_ERROR ) {
err = WSAGetLastError();
Com_Printf( "NET_OpenSocks: connect: %s\n", NET_ErrorString() );
return;
}
// send socks authentication handshake
if ( *net_socksUsername->string || *net_socksPassword->string ) {
rfc1929 = qtrue;
}
else {
rfc1929 = qfalse;
}
buf[0] = 5; // SOCKS version
// method count
if ( rfc1929 ) {
buf[1] = 2;
len = 4;
}
else {
buf[1] = 1;
len = 3;
}
buf[2] = 0; // method #1 - method id #00: no authentication
if ( rfc1929 ) {
buf[2] = 2; // method #2 - method id #02: username/password
}
if ( send( socks_socket, (const char *)buf, len, 0 ) == SOCKET_ERROR ) {
err = WSAGetLastError();
Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() );
return;
}
// get the response
len = recv( socks_socket, (char *)buf, 64, 0 );
if ( len == SOCKET_ERROR ) {
err = WSAGetLastError();
Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() );
return;
}
if ( len != 2 || buf[0] != 5 ) {
Com_Printf( "NET_OpenSocks: bad response\n" );
return;
}
switch( buf[1] ) {
case 0: // no authentication
break;
case 2: // username/password authentication
break;
default:
Com_Printf( "NET_OpenSocks: request denied\n" );
return;
}
// do username/password authentication if needed
if ( buf[1] == 2 ) {
int ulen;
int plen;
// build the request
ulen = strlen( net_socksUsername->string );
plen = strlen( net_socksPassword->string );
buf[0] = 1; // username/password authentication version
buf[1] = ulen;
if ( ulen ) {
memcpy( &buf[2], net_socksUsername->string, ulen );
}
buf[2 + ulen] = plen;
if ( plen ) {
memcpy( &buf[3 + ulen], net_socksPassword->string, plen );
}
// send it
if ( send( socks_socket, (const char *)buf, 3 + ulen + plen, 0 ) == SOCKET_ERROR ) {
err = WSAGetLastError();
Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() );
return;
}
// get the response
len = recv( socks_socket, (char *)buf, 64, 0 );
if ( len == SOCKET_ERROR ) {
err = WSAGetLastError();
Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() );
return;
}
if ( len != 2 || buf[0] != 1 ) {
Com_Printf( "NET_OpenSocks: bad response\n" );
return;
}
if ( buf[1] != 0 ) {
Com_Printf( "NET_OpenSocks: authentication failed\n" );
return;
}
}
// send the UDP associate request
buf[0] = 5; // SOCKS version
buf[1] = 3; // command: UDP associate
buf[2] = 0; // reserved
buf[3] = 1; // address type: IPV4
*(int *)&buf[4] = INADDR_ANY;
*(short *)&buf[8] = htons( (short)port ); // port
if ( send( socks_socket, (const char *)buf, 10, 0 ) == SOCKET_ERROR ) {
err = WSAGetLastError();
Com_Printf( "NET_OpenSocks: send: %s\n", NET_ErrorString() );
return;
}
// get the response
len = recv( socks_socket, (char *)buf, 64, 0 );
if( len == SOCKET_ERROR ) {
err = WSAGetLastError();
Com_Printf( "NET_OpenSocks: recv: %s\n", NET_ErrorString() );
return;
}
if( len < 2 || buf[0] != 5 ) {
Com_Printf( "NET_OpenSocks: bad response\n" );
return;
}
// check completion code
if( buf[1] != 0 ) {
Com_Printf( "NET_OpenSocks: request denied: %i\n", buf[1] );
return;
}
if( buf[3] != 1 ) {
Com_Printf( "NET_OpenSocks: relay address is not IPV4: %i\n", buf[3] );
return;
}
((struct sockaddr_in *)&socksRelayAddr)->sin_family = AF_INET;
((struct sockaddr_in *)&socksRelayAddr)->sin_addr.s_addr = *(int *)&buf[4];
((struct sockaddr_in *)&socksRelayAddr)->sin_port = *(short *)&buf[8];
memset( ((struct sockaddr_in *)&socksRelayAddr)->sin_zero, 0, 8 );
usingSocks = qtrue;
}
/*
=====================
NET_GetLocalAddress
=====================
*/
void NET_GetLocalAddress( void )
{
#ifndef _XBOX
char hostname[256];
struct hostent *hostInfo;
int error;
char *p;
int ip;
int n;
// Set this early so we can just return if there is an error
numIP = 0;
if( gethostname( hostname, 256 ) == SOCKET_ERROR ) {
error = WSAGetLastError();
return;
}
hostInfo = gethostbyname( hostname );
if( !hostInfo ) {
error = WSAGetLastError();
return;
}
Com_Printf( "Hostname: %s\n", hostInfo->h_name );
n = 0;
while( ( p = hostInfo->h_aliases[n++] ) != NULL ) {
Com_Printf( "Alias: %s\n", p );
}
if ( hostInfo->h_addrtype != AF_INET ) {
return;
}
while( ( p = hostInfo->h_addr_list[numIP] ) != NULL && numIP < MAX_IPS ) {
ip = ntohl( *(int *)p );
localIP[ numIP ][0] = p[0];
localIP[ numIP ][1] = p[1];
localIP[ numIP ][2] = p[2];
localIP[ numIP ][3] = p[3];
Com_Printf( "IP: %i.%i.%i.%i\n", ( ip >> 24 ) & 0xff, ( ip >> 16 ) & 0xff, ( ip >> 8 ) & 0xff, ip & 0xff );
numIP++;
}
#else
XNADDR xnMyAddr;
DWORD dwStatus;
do
{
// Repeat while pending; OK to do other work in this loop
dwStatus = XNetGetTitleXnAddr( &xnMyAddr );
} while( dwStatus == XNET_GET_XNADDR_PENDING );
// Error checking
if( dwStatus == XNET_GET_XNADDR_NONE )
{
assert(!"Error getting XBox title address.");
return;
}
*(u_long*)&localIP[0] = xnMyAddr.ina.S_un.S_addr;
*(u_long*)localIP[1] = 0;
*(u_long*)localIP[2] = 0;
*(u_long*)localIP[3] = 0;
Com_Printf( "IP: %i.%i.%i.%i\n", localIP[0], localIP[1], localIP[2], localIP[3] );
#endif
}
/*
====================
NET_OpenIP
====================
*/
void NET_OpenIP( void )
{
cvar_t *ip;
int port;
int i;
ip = Cvar_Get( "net_ip", "localhost", CVAR_LATCH );
port = Cvar_Get( "net_port", va( "%i", PORT_SERVER ), CVAR_LATCH )->integer;
// automatically scan for a valid port, so multiple
// dedicated servers can be started without requiring
// a different net_port for each one
for( i = 0 ; i < 10 ; i++ ) {
ip_socket = NET_IPSocket( ip->string, port + i );
if ( ip_socket != INVALID_SOCKET ) {
Cvar_SetValue( "net_port", port + i );
if ( net_socksEnabled->integer ) {
NET_OpenSocks( port + i );
}
NET_GetLocalAddress();
return;
}
}
Com_Printf( "WARNING: Couldn't allocate IP port\n");
}
/*
====================
NET_IPXSocket
====================
*/
int NET_IPXSocket( int port )
{
#ifdef _XBOX
assert(!"NET_IPXSocket() - Not supported");
return INVALID_SOCKET;
#else
SOCKET newsocket;
struct sockaddr_ipx address;
int _true = 1;
int err;
if( ( newsocket = socket( AF_IPX, SOCK_DGRAM, NSPROTO_IPX ) ) == INVALID_SOCKET ) {
err = WSAGetLastError();
if (err != WSAEAFNOSUPPORT) {
Com_Printf( "WARNING: IPX_Socket: socket: %s\n", NET_ErrorString() );
}
return INVALID_SOCKET;
}
// make it non-blocking
if( ioctlsocket( newsocket, FIONBIO, (unsigned long *)&_true ) == SOCKET_ERROR ) {
Com_Printf( "WARNING: IPX_Socket: ioctl FIONBIO: %s\n", NET_ErrorString() );
return INVALID_SOCKET;
}
// make it broadcast capable
if( setsockopt( newsocket, SOL_SOCKET, SO_BROADCAST, (char *)&_true, sizeof( _true ) ) == SOCKET_ERROR ) {
Com_Printf( "WARNING: IPX_Socket: setsockopt SO_BROADCAST: %s\n", NET_ErrorString() );
return INVALID_SOCKET;
}
address.sa_family = AF_IPX;
memset( address.sa_netnum, 0, 4 );
memset( address.sa_nodenum, 0, 6 );
if( port == PORT_ANY ) {
address.sa_socket = 0;
}
else {
address.sa_socket = htons( (short)port );
}
if( bind( newsocket, (const struct sockaddr *)&address, sizeof(address) ) == SOCKET_ERROR ) {
Com_Printf( "WARNING: IPX_Socket: bind: %s\n", NET_ErrorString() );
closesocket( newsocket );
return INVALID_SOCKET;
}
return newsocket;
#endif
}
/*
====================
NET_OpenIPX
====================
*/
void NET_OpenIPX( void ) {
int port;
port = Cvar_Get( "net_port", va( "%i", PORT_SERVER ), CVAR_LATCH )->integer;
ipx_socket = NET_IPXSocket( port );
}
//===================================================================
/*
====================
NET_GetCvars
====================
*/
static qboolean NET_GetCvars( void ) {
qboolean modified;
modified = qfalse;
if( net_noudp && net_noudp->modified ) {
modified = qtrue;
}
net_noudp = Cvar_Get( "net_noudp", "0", CVAR_LATCH | CVAR_ARCHIVE );
if( net_noipx && net_noipx->modified ) {
modified = qtrue;
}
net_noipx = Cvar_Get( "net_noipx", "1", CVAR_LATCH | CVAR_ARCHIVE );
if( net_forcenonlocal && net_forcenonlocal->modified ) {
modified = qtrue;
}
net_forcenonlocal = Cvar_Get( "net_forcenonlocal", "0", CVAR_LATCH | CVAR_ARCHIVE );
if( net_socksEnabled && net_socksEnabled->modified ) {
modified = qtrue;
}
net_socksEnabled = Cvar_Get( "net_socksEnabled", "0", CVAR_LATCH | CVAR_ARCHIVE );
if( net_socksServer && net_socksServer->modified ) {
modified = qtrue;
}
net_socksServer = Cvar_Get( "net_socksServer", "", CVAR_LATCH | CVAR_ARCHIVE );
if( net_socksPort && net_socksPort->modified ) {
modified = qtrue;
}
net_socksPort = Cvar_Get( "net_socksPort", "1080", CVAR_LATCH | CVAR_ARCHIVE );
if( net_socksUsername && net_socksUsername->modified ) {
modified = qtrue;
}
net_socksUsername = Cvar_Get( "net_socksUsername", "", CVAR_LATCH | CVAR_ARCHIVE );
if( net_socksPassword && net_socksPassword->modified ) {
modified = qtrue;
}
net_socksPassword = Cvar_Get( "net_socksPassword", "", CVAR_LATCH | CVAR_ARCHIVE );
return modified;
}
/*
====================
NET_Config
====================
*/
void NET_Config( qboolean enableNetworking ) {
qboolean modified;
qboolean stop;
qboolean start;
// get any latched changes to cvars
modified = NET_GetCvars();
if( net_noudp->integer && net_noipx->integer ) {
enableNetworking = qfalse;
}
// if enable state is the same and no cvars were modified, we have nothing to do
if( enableNetworking == networkingEnabled && !modified ) {
return;
}
if( enableNetworking == networkingEnabled ) {
if( enableNetworking ) {
stop = qtrue;
start = qtrue;
}
else {
stop = qfalse;
start = qfalse;
}
}
else {
if( enableNetworking ) {
stop = qfalse;
start = qtrue;
}
else {
stop = qtrue;
start = qfalse;
}
networkingEnabled = enableNetworking;
}
if( stop ) {
if ( ip_socket && ip_socket != INVALID_SOCKET ) {
closesocket( ip_socket );
ip_socket = INVALID_SOCKET;
}
if ( socks_socket && socks_socket != INVALID_SOCKET ) {
closesocket( socks_socket );
socks_socket = INVALID_SOCKET;
}
if ( ipx_socket && ipx_socket != INVALID_SOCKET ) {
closesocket( ipx_socket );
ipx_socket = INVALID_SOCKET;
}
}
if( start ) {
if (! net_noudp->integer ) {
NET_OpenIP();
}
#ifndef _XBOX
if (! net_noipx->integer ) {
NET_OpenIPX();
}
#endif
}
}
/*
====================
NET_Init
====================
*/
void NET_Init( void ) {
int r;
#ifdef _XBOX
// Run NetStartup with security bypassed
// this allows us to communicate with PCs while developing
XNetStartupParams xnsp;
ZeroMemory( &xnsp, sizeof(xnsp) );
xnsp.cfgSizeOfStruct = sizeof(xnsp);
#ifdef _DEBUG
xnsp.cfgFlags |= XNET_STARTUP_BYPASS_SECURITY;
#else
xnsp.cfgFlags |= XNET_STARTUP_BYPASS_SECURITY;
// xnsp.cfgFlags = 0;
#endif
INT err = XNetStartup( &xnsp );
#endif
r = WSAStartup( MAKEWORD( 1, 1 ), &winsockdata );
if( r ) {
Com_Printf( "WARNING: Winsock initialization failed, returned %d\n", r );
return;
}
winsockInitialized = qtrue;
Com_Printf( "Winsock Initialized\n" );
// this is really just to get the cvars registered
NET_GetCvars();
//FIXME testing!
NET_Config( qtrue );
}
/*
====================
NET_Shutdown
====================
*/
void NET_Shutdown( void ) {
if ( !winsockInitialized ) {
return;
}
NET_Config( qfalse );
WSACleanup();
winsockInitialized = qfalse;
}
/*
====================
NET_Sleep
sleeps msec or until net socket is ready
====================
*/
void NET_Sleep( int msec ) {
}
/*
====================
NET_Restart_f
====================
*/
void NET_Restart( void ) {
NET_Config( networkingEnabled );
}
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