--- deliantra/server/socket/init.C 2006/08/17 20:23:32 1.2
+++ deliantra/server/socket/init.C 2007/11/14 10:12:45 1.55
@@ -1,31 +1,26 @@
/*
- * static char *rcsid_init_c =
- * "$Id: init.C,v 1.2 2006/08/17 20:23:32 root Exp $";
+ * This file is part of Deliantra, the Roguelike Realtime MMORPG.
+ *
+ * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
+ * Copyright (©) 2001,2007 Mark Wedel
+ * Copyright (©) 1992,2007 Frank Tore Johansen
+ *
+ * Deliantra 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 3 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, see .
+ *
+ * The authors can be reached via e-mail to
*/
-/*
- CrossFire, A Multiplayer game for X-windows
-
- Copyright (C) 2001 Mark Wedel
- Copyright (C) 1992 Frank Tore Johansen
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- The author can be reached via e-mail to crossfire-devel@real-time.com
-*/
-
/**
* \file
* Socket general functions
@@ -37,306 +32,206 @@
* The reading of data is handled in ericserver.c
*/
-
#include
-#ifndef __CEXTRACT__
#include
-#endif
-#ifndef WIN32 /* ---win32 exclude include files */
#include
#include
#include
#include
+#include
+#include
#include
-#endif /* win32 */
-#ifdef HAVE_UNISTD_H
#include
-#endif
-
-#ifdef HAVE_ARPA_INET_H
#include
-#endif
-#include
-Socket_Info socket_info;
-NewSocket *init_sockets;
+#include
+
+// use relatively small values, as we do not expect to receive much,
+// and we do userspace write buffering
+// 8kb limits throughput to roughly 66kb/s
+#define SOCKET_RCVBUF 8192
+#define SOCKET_SNDBUF 16384
+
+sockvec clients;
/**
* Initializes a connection. Really, it just sets up the data structure,
* socket setup is handled elsewhere. We do send a version to the
* client.
*/
-void InitConnection(NewSocket *ns, const char *from_ip)
+client::client (int fd, const char *peername)
+: fd (fd), host (strdup (peername)),
+ socket_ev (this, &client::socket_cb)
{
- SockList sl;
- char buf[256];
- int bufsize=65535; /*Supposed absolute upper limit */
- int oldbufsize;
- int buflen=sizeof(int);
-
-#ifdef WIN32 /* ***WIN32 SOCKET: init win32 non blocking socket */
- int temp = 1;
-
- if(ioctlsocket(ns->fd, FIONBIO , &temp) == -1)
- LOG(llevError,"InitConnection: Error on ioctlsocket.\n");
-#else
- if (fcntl(ns->fd, F_SETFL, O_NONBLOCK)==-1) {
- LOG(llevError,"InitConnection: Error on fcntl.\n");
- }
-#endif /* end win32 */
+ refcnt_inc (); // the socket is an external reference
+
+ mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
+
+ {
+ struct linger linger_opt;
+
+ linger_opt.l_onoff = 0;
+ linger_opt.l_linger = 0;
+
+ if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
+ LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
+ }
- if (getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen)==-1)
- oldbufsize=0;
- if (oldbufsizefd,SOL_SOCKET,SO_SNDBUF, (char*)&bufsize, sizeof(&bufsize))) {
- LOG(llevError,"InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
- }
- }
- buflen=sizeof(oldbufsize);
- getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen);
-#ifdef ESRV_DEBUG
- LOG(llevDebug, "Socket buffer size now %d bytes\n", oldbufsize);
+
+#ifdef SO_SNDBUF
+ val = SOCKET_SNDBUF;
+ if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof (val)))
+ LOG (llevError, "SO_SNDBUF: %s\n", strerror (errno));
#endif
- ns->faceset = 0;
- ns->facecache = 0;
- ns->image2 = 0;
- ns->sound = 0;
- ns->exp64 = 0;
- ns->monitor_spells = 0;
- ns->mapmode = Map0Cmd;
- ns->darkness = 1;
- ns->status = Ns_Add;
- ns->comment = NULL;
- ns->old_mode = (Old_Mode) 0;
- ns->mapx = 11;
- ns->mapy = 11;
- ns->newmapcmd= 0;
- ns->itemcmd = 1; /* Default is version item1 command*/
- ns->ext_mapinfos=0; /*extendedmapinfo datas*/
- ns->EMI_smooth=0;
- ns->look_position = 0;
- ns->update_look = 0;
- ns->has_readable_type = 0;
- ns->supported_readables = 0;
- ns->monitor_spells = 0;
- ns->mapinfocmd = 0;
- ns->extcmd = 0;
-
- /* we should really do some checking here - if total clients overflows
- * we need to do something more intelligent, because client id's will start
- * duplicating (not likely in normal cases, but malicous attacks that
- * just open and close connections could get this total up.
- */
- ns->inbuf.len=0;
- ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF );
- /* Basic initialization. Needed because we do a check in
- * HandleClient for oldsocketmode without checking the
- * length of data.
- */
- memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF );
- memset(&ns->lastmap,0,sizeof(struct Map));
- memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent));
- memset(&ns->anims_sent,0,sizeof(ns->anims_sent));
- memset(&ns->stats,0,sizeof(struct statsinfo));
- /* Do this so we don't send a face command for the client for
- * this face. Face 0 is sent to the client to say clear
- * face information.
- */
- ns->faces_sent[0] = NS_FACESENT_FACE;
-
- ns->outputbuffer.start=0;
- ns->outputbuffer.len=0;
- ns->can_write=1;
- ns->password_fails = 0;
-
- ns->current_map = 0;
- ns->current_x = 0;
- ns->current_y = 0;
-
- ns->sent_scroll=0;
- ns->host=strdup_local(from_ip);
- sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO);
- sl.buf=(unsigned char*)buf;
- sl.len=strlen((char*)buf);
- Send_With_Handling(ns, &sl);
-#ifdef CS_LOGSTATS
- if (socket_info.nconns>cst_tot.max_conn)
- cst_tot.max_conn = socket_info.nconns;
- if (socket_info.nconns>cst_lst.max_conn)
- cst_lst.max_conn = socket_info.nconns;
+#ifdef IP_TOS
+ val = IPTOS_LOWDELAY;
+ if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
+ LOG (llevError, "IP_TOS: %s\n", strerror (errno));
#endif
-}
+#ifdef TCP_NODELAY
+ val = 1;
+ if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
+ LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
+#endif
-/** This sets up the socket and reads all the image information into memory. */
-void init_ericserver(void)
-{
- struct sockaddr_in insock;
- struct protoent *protox;
- struct linger linger_opt;
+ // set some very aggressive keepalive parameters
+#ifdef TCP_KEEPIDLE
+ val = 1;
+ if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
+ LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
+#endif
-#ifdef WIN32 /* ***win32 - we init a windows socket */
- WSADATA w;
+#ifdef TCP_KEEPCNT
+ val = 3;
+ if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
+ LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
+#endif
- socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
- WSAStartup (0x0101,&w); /* this setup all socket stuff */
- /* ill include no error tests here, winsocket 1.1 should always work */
- /* except some old win95 versions without tcp/ip stack */
-#else /* non windows */
-
-#ifdef HAVE_SYSCONF
- socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX);
-#else
-# ifdef HAVE_GETDTABLESIZE
- socket_info.max_filedescriptor = getdtablesize();
-# else
- "Unable to find usable function to get max filedescriptors";
-# endif
+#ifdef TCP_KEEPINTVL
+ val = 1;
+ if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
+ LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
#endif
-#endif /* win32 */
- socket_info.timeout.tv_sec = 0;
- socket_info.timeout.tv_usec = 0;
- socket_info.nconns=0;
-
-#ifdef CS_LOGSTATS
- memset(&cst_tot, 0, sizeof(CS_Stats));
- memset(&cst_lst, 0, sizeof(CS_Stats));
- cst_tot.time_start=time(NULL);
- cst_lst.time_start=time(NULL);
+ // try to find the mss value in use
+#ifdef TCP_MAXSEG
+ socklen_t sl = sizeof (val);
+ if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
+ mss = val;
#endif
+ }
- LOG(llevDebug,"Initialize new client/server data\n");
- socket_info.nconns = 1;
- init_sockets = (NewSocket *) malloc(sizeof(NewSocket));
- init_sockets[0].faces_sent = NULL; /* unused */
- socket_info.allocated_sockets=1;
-
- protox = getprotobyname("tcp");
- if (protox==NULL) {
- LOG(llevError,"init_ericserver: Error getting protox\n");
- return;
- }
- init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto);
- if (init_sockets[0].fd == -1) {
- LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno));
- exit(-1);
- }
- insock.sin_family = AF_INET;
- insock.sin_port = htons(settings.csport);
- insock.sin_addr.s_addr = htonl(INADDR_ANY);
+ if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
+ LOG (llevError, "InitConnection: Error on fcntl.\n");
- linger_opt.l_onoff = 0;
- linger_opt.l_linger = 0;
- if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt,
- sizeof(struct linger))) {
- LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno));
- }
-/* Would be nice to have an autoconf check for this. It appears that
- * these functions are both using the same calling syntax, just one
- * of them needs extra valus passed.
- */
-#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
- defined(__sun__) || defined(__linux__) || defined(SVR4) || \
- defined(__FreeBSD__) || defined(__OpenBSD__) || \
- defined(WIN32) /* ---win32 add this here */ || \
- defined(__GNU__) /* HURD */
- {
-#ifdef WIN32
- char tmp = 1;
-#else
- int tmp =1;
-#endif
+ state = ST_SETUP;
+ mapmode = Map0Cmd;
+ darkness = 1;
+ mapx = 11;
+ mapy = 11;
+ itemcmd = 1; /* Default is version item1 command */
+ max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
- if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) {
- LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
- }
- }
-#else
- if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
- LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
- }
-#endif
+ /* Do this so we don't send a face command for the client for
+ * this face. Face 0 is sent to the client to say clear
+ * face information.
+ */
+ faces_sent[0] = true;
+ fx_want [FT_FACE] = true; // all clients must support image faces
- if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) {
- LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno));
-#ifdef WIN32 /* ***win32: close() -> closesocket() */
- shutdown(init_sockets[0].fd,SD_BOTH);
- closesocket(init_sockets[0].fd);
-#else
- close(init_sockets[0].fd);
-#endif /* win32 */
- exit(-1);
- }
- if (listen(init_sockets[0].fd,5) == (-1)) {
- LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno));
-#ifdef WIN32 /* ***win32: close() -> closesocket() */
- shutdown(init_sockets[0].fd,SD_BOTH);
- closesocket(init_sockets[0].fd);
-#else
- close(init_sockets[0].fd);
-#endif /* win32 */
- exit(-1);
- }
- init_sockets[0].status=Ns_Add;
- read_client_images();
-}
+ socket_ev.set (fd, EV_READ);
+ socket_ev.start ();
+ // initialisation done, kick it!
+ send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
+ flush ();
-/*******************************************************************************
- *
- * Start of functions dealing with freeing of the data.
- *
- ******************************************************************************/
+ reset_stats ();
-/** Free's all the memory that ericserver allocates. */
-void free_all_newserver(void)
-{
- LOG(llevDebug,"Freeing all new client/server information.\n");
- free_socket_images();
- free(init_sockets);
+ clients.insert (this);
}
-/**
- * Frees a socket.
- * Basically, all we need to do here is free all data structures that
- * might be associated with the socket. It is up to the caller to
- * update the list
- */
+client::~client ()
+{
+ clients.erase (this);
+
+ mapinfo_queue_clear ();
+ free (stats.range);
+ free (stats.title);
+ free (host);
+}
-void free_newsocket(NewSocket *ns)
+void
+client::do_destroy ()
{
-#ifdef WIN32 /* ***win32: closesocket in windows style */
- shutdown(ns->fd,SD_BOTH);
- if (closesocket(ns->fd)) {
-#else
- if (close(ns->fd)) {
-#endif /* win32 */
+ attachable::do_destroy ();
-#ifdef ESRV_DEBUG
- LOG(llevDebug,"Error closing socket %d\n", ns->fd);
-#endif
+ if (pl)
+ pl->disconnect ();
+
+ if (fd >= 0)
+ {
+ send_packet ("goodbye");
+ flush ();
+
+ close (fd);
}
- if (ns->stats.range)
- free(ns->stats.range);
- if (ns->stats.title)
- free(ns->stats.title);
- if (ns->comment)
- free(ns->comment);
- free(ns->host);
- free(ns->inbuf.buf);
+
+ state = ST_DEAD;
+
+ socket_ev.stop ();
+
+ refcnt_dec (); // socket no longer open
+}
+
+void
+client::reset_stats ()
+{
+ /* we need to clear these to -1 and not zero - otherwise,
+ * if a player quits and starts a new character, we wont
+ * send new values to the client, as things like exp start
+ * at zero.
+ */
+ for (int i = 0; i < NUM_SKILLS; i++)
+ last_skill_exp[i] = -1;
+
+ for (int i = 0; i < NROFATTACKS; i++)
+ last_resist[i] = -1;
+
+ last_weapon_sp = -1;
+ last_level = -1;
+ last_stats.exp = -1;
+ last_weight = (uint32) - 1;
+ last_flags = 0;
+ last_weight = 0;
+ last_weight_limit = 0;
+ last_path_attuned = 0;
+ last_path_repelled = 0;
+ last_path_denied = 0;
+ last_speed = 0;
+ last_flags = 0;
+
+ static living zero_living;
+ last_stats = zero_living;
}
-/** Sends the 'goodbye' command to the player, and closes connection. */
-void final_free_player(player *pl)
+client *
+client::create (int fd, const char *peername)
{
- cs_write_string(&pl->socket, "goodbye", 8);
- free_newsocket(&pl->socket);
- free_player(pl);
+ client *ns = new client (dup (fd), peername);
+ ns->instantiate (); // effectively a nop right now
+ INVOKE_CLIENT (CONNECT, ns);
+ return ns;
}