/* Copyright (C) 1996-2001 Id Software, Inc. Copyright (C) 2007-2008 Kristian Duske Copyright (C) 2010-2014 QuakeSpasm developers This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "q_stdinc.h" #include "arch_def.h" #include "net_sys.h" #include "quakedef.h" #include "net_defs.h" #ifdef VITA #include static void *net_memory = NULL; #define NET_INIT_SIZE 1*1024*1024 #endif static sys_socket_t net_acceptsocket = INVALID_SOCKET; // socket for fielding new connections static sys_socket_t net_controlsocket; static sys_socket_t net_broadcastsocket = 0; static struct sockaddr_in broadcastaddr; static in_addr_t myAddr; #include "net_udp.h" //============================================================================= sys_socket_t UDP_Init (void) { int err; char *tst; char buff[MAXHOSTNAMELEN]; struct qsockaddr addr; if (COM_CheckParm ("-noudp")) return INVALID_SOCKET; // determine my name & address #ifndef VITA myAddr = htonl(INADDR_LOOPBACK); #endif #ifdef VITA // Start SceNet & SceNetCtl SceNetInitParam initparam; int ret = sceNetShowNetstat(); if (ret == SCE_NET_ERROR_ENOTINIT) { net_memory = malloc(NET_INIT_SIZE); initparam.memory = net_memory; initparam.size = NET_INIT_SIZE; initparam.flags = 0; ret = sceNetInit(&initparam); if (ret < 0) return -1; ret = sceNetCtlInit(); if (ret < 0){ sceNetTerm(); free(net_memory); return -1; } } // Getting IP address SceNetCtlInfo info; sceNetCtlInetGetInfo(SCE_NETCTL_INFO_GET_IP_ADDRESS, &info); sceNetInetPton(SCE_NET_AF_INET, info.ip_address, &myAddr); // if the quake hostname isn't set, set it to player nickname if (!strcmp(hostname.string, "UNNAMED")) { SceAppUtilInitParam init_param; SceAppUtilBootParam boot_param; memset(&init_param, 0, sizeof(SceAppUtilInitParam)); memset(&boot_param, 0, sizeof(SceAppUtilBootParam)); sceAppUtilInit(&init_param, &boot_param); char nick[SCE_SYSTEM_PARAM_USERNAME_MAXSIZE]; sceAppUtilSystemParamGetString(SCE_SYSTEM_PARAM_ID_USERNAME, nick, SCE_SYSTEM_PARAM_USERNAME_MAXSIZE); Cvar_Set ("hostname", nick); } #else if (gethostname(buff, MAXHOSTNAMELEN) != 0) { err = SOCKETERRNO; Con_SafePrintf("UDP_Init: gethostname failed (%s)\n", socketerror(err)); } else { buff[MAXHOSTNAMELEN - 1] = 0; #ifdef __SWITCH__ // gethostid() returns 127.0.0.1 in the wrong byteorder if we're not // connected to the internet, otherwise our local IP in correct order myAddr = gethostid(); if (myAddr == 0x7f000001) myAddr = htonl(myAddr); #else #ifdef PLATFORM_OSX // ericw -- if our hostname ends in ".local" (a macOS thing), // don't bother calling gethostbyname(), because it blocks for a few seconds // and then fails (on my system anyway.) tst = strstr(buff, ".local"); if (tst && tst[6] == '\0') { Con_SafePrintf("UDP_Init: skipping gethostbyname for %s\n", buff); } else #endif if (!(local = gethostbyname(buff))) { Con_SafePrintf("UDP_Init: gethostbyname failed (%s)\n", hstrerror(h_errno)); } else if (local->h_addrtype != AF_INET) { Con_SafePrintf("UDP_Init: address from gethostbyname not IPv4\n"); } else { myAddr = *(in_addr_t *)local->h_addr_list[0]; } #endif } #endif if ((net_controlsocket = UDP_OpenSocket(0)) == INVALID_SOCKET) { Con_SafePrintf("UDP_Init: Unable to open control socket, UDP disabled\n"); return INVALID_SOCKET; } broadcastaddr.sin_family = AF_INET; broadcastaddr.sin_addr.s_addr = INADDR_BROADCAST; broadcastaddr.sin_port = htons((unsigned short)net_hostport); UDP_GetSocketAddr (net_controlsocket, &addr); strcpy(my_tcpip_address, UDP_AddrToString (&addr)); tst = strrchr(my_tcpip_address, ':'); if (tst) *tst = 0; Con_SafePrintf("UDP Initialized\n"); tcpipAvailable = true; return net_controlsocket; } //============================================================================= void UDP_Shutdown (void) { UDP_Listen (false); UDP_CloseSocket (net_controlsocket); } //============================================================================= void UDP_Listen (qboolean state) { // enable listening if (state) { if (net_acceptsocket != INVALID_SOCKET) return; if ((net_acceptsocket = UDP_OpenSocket (net_hostport)) == INVALID_SOCKET) Sys_Error ("UDP_Listen: Unable to open accept socket"); return; } // disable listening if (net_acceptsocket == INVALID_SOCKET) return; UDP_CloseSocket (net_acceptsocket); net_acceptsocket = INVALID_SOCKET; } //============================================================================= sys_socket_t UDP_OpenSocket (int port) { sys_socket_t newsocket; struct sockaddr_in address; int _true = 1; int err; if ((newsocket = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP)) == INVALID_SOCKET) { err = SOCKETERRNO; Con_SafePrintf("UDP_OpenSocket: %s\n", socketerror(err)); return INVALID_SOCKET; } #ifdef VITA if (setsockopt(newsocket, SOL_SOCKET, SCE_NET_SO_NBIO, (char *)&_true, sizeof(uint32_t)) == -1) #else if (ioctlsocket (newsocket, FIONBIO, &_true) == SOCKET_ERROR) #endif goto ErrorReturn; memset(&address, 0, sizeof(struct sockaddr_in)); address.sin_family = AF_INET; address.sin_addr.s_addr = INADDR_ANY; address.sin_port = htons((unsigned short)port); if (bind (newsocket, (struct sockaddr *)&address, sizeof(address)) == 0) return newsocket; ErrorReturn: err = SOCKETERRNO; Con_SafePrintf("UDP_OpenSocket: %s\n", socketerror(err)); UDP_CloseSocket (newsocket); return INVALID_SOCKET; } //============================================================================= int UDP_CloseSocket (sys_socket_t socketid) { if (socketid == net_broadcastsocket) net_broadcastsocket = 0; return closesocket (socketid); } //============================================================================= /* ============ PartialIPAddress this lets you type only as much of the net address as required, using the local network components to fill in the rest ============ */ static int PartialIPAddress (const char *in, struct qsockaddr *hostaddr) { char buff[256]; char *b; int addr, mask, num, port, run; buff[0] = '.'; b = buff; strcpy(buff+1, in); if (buff[1] == '.') b++; addr = 0; mask = -1; while (*b == '.') { b++; num = 0; run = 0; while (!( *b < '0' || *b > '9')) { num = num*10 + *b++ - '0'; if (++run > 3) return -1; } if ((*b < '0' || *b > '9') && *b != '.' && *b != ':' && *b != 0) return -1; if (num < 0 || num > 255) return -1; mask <<= 8; addr = (addr<<8) + num; } if (*b++ == ':') port = atoi(b); else port = net_hostport; hostaddr->qsa_family = AF_INET; ((struct sockaddr_in *)hostaddr)->sin_port = htons((unsigned short)port); ((struct sockaddr_in *)hostaddr)->sin_addr.s_addr = (myAddr & htonl(mask)) | htonl(addr); return 0; } //============================================================================= int UDP_Connect (sys_socket_t socketid, struct qsockaddr *addr) { return 0; } //============================================================================= sys_socket_t UDP_CheckNewConnections (void) { int available; struct sockaddr_in from; socklen_t fromlen; char buff[1]; if (net_acceptsocket == INVALID_SOCKET) return INVALID_SOCKET; #ifndef VITA if (ioctl (net_acceptsocket, FIONREAD, &available) == -1) { int err = SOCKETERRNO; Sys_Error ("UDP: ioctlsocket (FIONREAD) failed (%s)", socketerror(err)); } if (available) return net_acceptsocket; #else char buf[4096]; if (recvfrom(net_acceptsocket, buf, sizeof(buf), MSG_PEEK, NULL, NULL) >= 0) return net_acceptsocket; #endif // quietly absorb empty packets recvfrom (net_acceptsocket, buff, 0, 0, (struct sockaddr *) &from, &fromlen); return INVALID_SOCKET; } //============================================================================= int UDP_Read (sys_socket_t socketid, byte *buf, int len, struct qsockaddr *addr) { socklen_t addrlen = sizeof(struct qsockaddr); int ret; ret = recvfrom (socketid, buf, len, 0, (struct sockaddr *)addr, &addrlen); if (ret == SOCKET_ERROR) { int err = SOCKETERRNO; if (err == NET_EWOULDBLOCK || err == NET_ECONNREFUSED) return 0; Con_SafePrintf ("UDP_Read, recvfrom: %s\n", socketerror(err)); } return ret; } //============================================================================= static int UDP_MakeSocketBroadcastCapable (sys_socket_t socketid) { int i = 1; // make this socket broadcast capable if (setsockopt(socketid, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof(i)) == SOCKET_ERROR) { int err = SOCKETERRNO; Con_SafePrintf ("UDP, setsockopt: %s\n", socketerror(err)); return -1; } net_broadcastsocket = socketid; return 0; } //============================================================================= int UDP_Broadcast (sys_socket_t socketid, byte *buf, int len) { int ret; if (socketid != net_broadcastsocket) { if (net_broadcastsocket != 0) Sys_Error("Attempted to use multiple broadcasts sockets"); ret = UDP_MakeSocketBroadcastCapable (socketid); if (ret == -1) { Con_Printf("Unable to make socket broadcast capable\n"); return ret; } } return UDP_Write (socketid, buf, len, (struct qsockaddr *)&broadcastaddr); } //============================================================================= int UDP_Write (sys_socket_t socketid, byte *buf, int len, struct qsockaddr *addr) { int ret; ret = sendto (socketid, buf, len, 0, (struct sockaddr *)addr, sizeof(struct qsockaddr)); if (ret == SOCKET_ERROR) { int err = SOCKETERRNO; if (err == NET_EWOULDBLOCK) return 0; Con_SafePrintf ("UDP_Write, sendto: %s\n", socketerror(err)); } return ret; } //============================================================================= const char *UDP_AddrToString (struct qsockaddr *addr) { static char buffer[22]; int haddr; haddr = ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr); q_snprintf (buffer, sizeof(buffer), "%d.%d.%d.%d:%d", (haddr >> 24) & 0xff, (haddr >> 16) & 0xff, (haddr >> 8) & 0xff, haddr & 0xff, ntohs(((struct sockaddr_in *)addr)->sin_port)); return buffer; } //============================================================================= int UDP_StringToAddr (const char *string, struct qsockaddr *addr) { int ha1, ha2, ha3, ha4, hp, ipaddr; sscanf(string, "%d.%d.%d.%d:%d", &ha1, &ha2, &ha3, &ha4, &hp); ipaddr = (ha1 << 24) | (ha2 << 16) | (ha3 << 8) | ha4; addr->qsa_family = AF_INET; ((struct sockaddr_in *)addr)->sin_addr.s_addr = htonl(ipaddr); ((struct sockaddr_in *)addr)->sin_port = htons((unsigned short)hp); return 0; } //============================================================================= int UDP_GetSocketAddr (sys_socket_t socketid, struct qsockaddr *addr) { socklen_t addrlen = sizeof(struct qsockaddr); in_addr_t a; memset(addr, 0, sizeof(struct qsockaddr)); if (getsockname(socketid, (struct sockaddr *)addr, &addrlen) != 0) return -1; a = ((struct sockaddr_in *)addr)->sin_addr.s_addr; if (a == 0 || a == htonl(INADDR_LOOPBACK)) ((struct sockaddr_in *)addr)->sin_addr.s_addr = myAddr; return 0; } //============================================================================= int UDP_GetNameFromAddr (struct qsockaddr *addr, char *name) { struct hostent *hostentry; hostentry = gethostbyaddr ((char *)&((struct sockaddr_in *)addr)->sin_addr, sizeof(struct in_addr), AF_INET); if (hostentry) { strncpy (name, (char *)hostentry->h_name, NET_NAMELEN - 1); return 0; } strcpy (name, UDP_AddrToString (addr)); return 0; } //============================================================================= int UDP_GetAddrFromName (const char *name, struct qsockaddr *addr) { struct hostent *hostentry; if (name[0] >= '0' && name[0] <= '9') return PartialIPAddress (name, addr); hostentry = gethostbyname (name); if (!hostentry) return -1; addr->qsa_family = AF_INET; ((struct sockaddr_in *)addr)->sin_port = htons((unsigned short)net_hostport); ((struct sockaddr_in *)addr)->sin_addr.s_addr = *(in_addr_t *)hostentry->h_addr_list[0]; return 0; } //============================================================================= int UDP_AddrCompare (struct qsockaddr *addr1, struct qsockaddr *addr2) { if (addr1->qsa_family != addr2->qsa_family) return -1; if (((struct sockaddr_in *)addr1)->sin_addr.s_addr != ((struct sockaddr_in *)addr2)->sin_addr.s_addr) return -1; if (((struct sockaddr_in *)addr1)->sin_port != ((struct sockaddr_in *)addr2)->sin_port) return 1; return 0; } //============================================================================= int UDP_GetSocketPort (struct qsockaddr *addr) { return ntohs(((struct sockaddr_in *)addr)->sin_port); } int UDP_SetSocketPort (struct qsockaddr *addr, int port) { ((struct sockaddr_in *)addr)->sin_port = htons((unsigned short)port); return 0; } //=============================================================================