--- deliantra/server/socket/init.C 2006/09/10 13:43:33 1.7
+++ deliantra/server/socket/init.C 2007/10/01 01:09:10 1.52
@@ -1,32 +1,26 @@
-
/*
- * static char *rcsid_init_c =
- * "$Id: init.C,v 1.7 2006/09/10 13:43:33 root Exp $";
+ * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
+ *
+ * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
+ * Copyright (©) 2001,2007 Mark Wedel
+ * Copyright (©) 1992,2007 Frank Tore Johansen
+ *
+ * Crossfire TRT 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
@@ -38,325 +32,223 @@
* 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
-#endif /* win32 */
-
-#ifdef HAVE_UNISTD_H
-# include
-#endif
-
-#ifdef HAVE_ARPA_INET_H
-# include
-#endif
-#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+
+#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
-Socket_Info socket_info;
-NewSocket *init_sockets;
+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
- if (getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
- oldbufsize = 0;
- if (oldbufsize < bufsize)
- {
-#ifdef ESRV_DEBUG
- LOG (llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize);
+ 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));
+ }
+
+ {
+ int val;
+
+#ifdef SO_RCVBUF
+ val = SOCKET_RCVBUF;
+ if (setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof (val)))
+ LOG (llevError, "SO_RCVBUF: %s\n", strerror (errno));
#endif
- if (setsockopt (ns->fd, 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;
- ns->extmap = 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));
+#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
+
+ // 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 TCP_KEEPCNT
+ val = 3;
+ if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
+ LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
+#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
+
+ // 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
+ }
+
+ {
+ int bufsize = 65535; /*Supposed absolute upper limit */
+ int oldbufsize;
+ int buflen = sizeof (int);
+
+ if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
+ LOG (llevError, "InitConnection: Error on fcntl.\n");
+
+ if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
+ oldbufsize = 0;
+
+ if (oldbufsize < bufsize)
+ if (setsockopt (fd, 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 (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
+ }
+
+ 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
+
/* 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;
+ faces_sent[0] = true;
+ fx_want [FT_FACE] = true; // all clients must support image faces
- 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->client[0] = 0;
- ns->buggy_mapscroll = 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;
-#endif
+ socket_ev.prio (PE_PRIO_HIGH);
+ socket_ev.fd (fd);
+ socket_ev.poll (PE_R);
+
+ // initialisation done, kick it!
+ send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
+ flush ();
+
+ reset_stats ();
+
+ clients.insert (this);
}
+client::~client ()
+{
+ clients.erase (this);
+
+ mapinfo_queue_clear ();
+ free (stats.range);
+ free (stats.title);
+ free (host);
+}
-/** This sets up the socket and reads all the image information into memory. */
void
-init_ericserver (void)
+client::do_destroy ()
{
- struct sockaddr_in insock;
- struct protoent *protox;
- struct linger linger_opt;
-
-#ifdef WIN32 /* ***win32 - we init a windows socket */
- WSADATA w;
-
- 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
-# 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);
-#endif
+ attachable::do_destroy ();
- 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;
+ if (pl)
+ pl->disconnect ();
- protox = getprotobyname ("tcp");
- if (protox == NULL)
+ if (fd >= 0)
{
- 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 (errno));
- exit (-1);
- }
- insock.sin_family = AF_INET;
- insock.sin_port = htons (settings.csport);
- insock.sin_addr.s_addr = htonl (INADDR_ANY);
-
- 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 (errno));
- }
+ send_packet ("goodbye");
+ flush ();
-/* 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
-
- if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp)))
- {
- LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
- }
- }
-#else
- if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, (char *) NULL, 0))
- {
- LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
+ close (fd);
}
-#endif
- 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 (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 (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 ();
-}
+ state = ST_DEAD;
+ socket_ev.suspend ();
-/*******************************************************************************
- *
- * Start of functions dealing with freeing of the data.
- *
- ******************************************************************************/
+ refcnt_dec (); // socket no longer open
+}
-/** Free's all the memory that ericserver allocates. */
void
-free_all_newserver (void)
+client::reset_stats ()
{
- LOG (llevDebug, "Freeing all new client/server information.\n");
- free_socket_images ();
- free (init_sockets);
-}
+ /* 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;
-/**
- * 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
- */
+ for (int i = 0; i < NROFATTACKS; i++)
+ last_resist[i] = -1;
-void
-free_newsocket (NewSocket * ns)
-{
-#ifdef WIN32 /* ***win32: closesocket in windows style */
- shutdown (ns->fd, SD_BOTH);
- if (closesocket (ns->fd))
- {
-#else
- if (close (ns->fd))
- {
-#endif /* win32 */
+ 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;
-#ifdef ESRV_DEBUG
- LOG (llevDebug, "Error closing socket %d\n", ns->fd);
-#endif
- }
- 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);
+ 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;
}
+