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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.2 by root, Thu Aug 17 20:23:32 2006 UTC vs.
Revision 1.20 by root, Fri Dec 15 19:59:20 2006 UTC

1/*
2 * static char *rcsid_init_c =
3 * "$Id: init.C,v 1.2 2006/08/17 20:23:32 root Exp $";
4 */
5
6/* 1/*
7 CrossFire, A Multiplayer game for X-windows 2 CrossFire, A Multiplayer game for X-windows
8 3
9 Copyright (C) 2001 Mark Wedel 4 Copyright (C) 2001 Mark Wedel
10 Copyright (C) 1992 Frank Tore Johansen 5 Copyright (C) 1992 Frank Tore Johansen
… …
21 16
22 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software 18 along with this program; if not, write to the Free Software
24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 20
26 The author can be reached via e-mail to crossfire-devel@real-time.com 21 The author can be reached via e-mail to <crossfire@schmorp.de>
27*/ 22*/
28 23
29/** 24/**
30 * \file 25 * \file
31 * Socket general functions 26 * Socket general functions
… …
37 * The reading of data is handled in ericserver.c 32 * The reading of data is handled in ericserver.c
38 */ 33 */
39 34
40 35
41#include <global.h> 36#include <global.h>
42#ifndef __CEXTRACT__
43#include <sproto.h> 37#include <sproto.h>
44#endif
45#ifndef WIN32 /* ---win32 exclude include files */
46#include <sys/types.h> 38#include <sys/types.h>
47#include <sys/time.h> 39#include <sys/time.h>
48#include <sys/socket.h> 40#include <sys/socket.h>
49#include <netinet/in.h> 41#include <netinet/in.h>
50#include <netdb.h> 42#include <netdb.h>
51#endif /* win32 */
52 43
53#ifdef HAVE_UNISTD_H
54#include <unistd.h> 44#include <unistd.h>
55#endif
56
57#ifdef HAVE_ARPA_INET_H
58#include <arpa/inet.h> 45#include <arpa/inet.h>
59#endif
60#include <newserver.h>
61 46
62Socket_Info socket_info; 47sockvec clients;
63NewSocket *init_sockets;
64 48
65/** 49/**
66 * Initializes a connection. Really, it just sets up the data structure, 50 * Initializes a connection. Really, it just sets up the data structure,
67 * socket setup is handled elsewhere. We do send a version to the 51 * socket setup is handled elsewhere. We do send a version to the
68 * client. 52 * client.
69 */ 53 */
70void InitConnection(NewSocket *ns, const char *from_ip) 54client::client (int fd, const char *peername)
55: fd (fd), host (strdup (peername)),
56 socket_ev (this, &client::socket_cb)
71{ 57{
72 SockList sl; 58 {
73 char buf[256];
74 int bufsize=65535; /*Supposed absolute upper limit */
75 int oldbufsize;
76 int buflen=sizeof(int);
77
78#ifdef WIN32 /* ***WIN32 SOCKET: init win32 non blocking socket */
79 int temp = 1;
80
81 if(ioctlsocket(ns->fd, FIONBIO , &temp) == -1)
82 LOG(llevError,"InitConnection: Error on ioctlsocket.\n");
83#else
84 if (fcntl(ns->fd, F_SETFL, O_NONBLOCK)==-1) {
85 LOG(llevError,"InitConnection: Error on fcntl.\n");
86 }
87#endif /* end win32 */
88
89 if (getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen)==-1)
90 oldbufsize=0;
91 if (oldbufsize<bufsize) {
92#ifdef ESRV_DEBUG
93 LOG(llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize);
94#endif
95 if(setsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&bufsize, sizeof(&bufsize))) {
96 LOG(llevError,"InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
97 }
98 }
99 buflen=sizeof(oldbufsize);
100 getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen);
101#ifdef ESRV_DEBUG
102 LOG(llevDebug, "Socket buffer size now %d bytes\n", oldbufsize);
103#endif
104
105 ns->faceset = 0;
106 ns->facecache = 0;
107 ns->image2 = 0;
108 ns->sound = 0;
109 ns->exp64 = 0;
110 ns->monitor_spells = 0;
111 ns->mapmode = Map0Cmd;
112 ns->darkness = 1;
113 ns->status = Ns_Add;
114 ns->comment = NULL;
115 ns->old_mode = (Old_Mode) 0;
116 ns->mapx = 11;
117 ns->mapy = 11;
118 ns->newmapcmd= 0;
119 ns->itemcmd = 1; /* Default is version item1 command*/
120 ns->ext_mapinfos=0; /*extendedmapinfo datas*/
121 ns->EMI_smooth=0;
122 ns->look_position = 0;
123 ns->update_look = 0;
124 ns->has_readable_type = 0;
125 ns->supported_readables = 0;
126 ns->monitor_spells = 0;
127 ns->mapinfocmd = 0;
128 ns->extcmd = 0;
129
130 /* we should really do some checking here - if total clients overflows
131 * we need to do something more intelligent, because client id's will start
132 * duplicating (not likely in normal cases, but malicous attacks that
133 * just open and close connections could get this total up.
134 */
135 ns->inbuf.len=0;
136 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF );
137 /* Basic initialization. Needed because we do a check in
138 * HandleClient for oldsocketmode without checking the
139 * length of data.
140 */
141 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF );
142 memset(&ns->lastmap,0,sizeof(struct Map));
143 memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent));
144 memset(&ns->anims_sent,0,sizeof(ns->anims_sent));
145 memset(&ns->stats,0,sizeof(struct statsinfo));
146 /* Do this so we don't send a face command for the client for
147 * this face. Face 0 is sent to the client to say clear
148 * face information.
149 */
150 ns->faces_sent[0] = NS_FACESENT_FACE;
151
152 ns->outputbuffer.start=0;
153 ns->outputbuffer.len=0;
154 ns->can_write=1;
155 ns->password_fails = 0;
156
157 ns->current_map = 0;
158 ns->current_x = 0;
159 ns->current_y = 0;
160
161 ns->sent_scroll=0;
162 ns->host=strdup_local(from_ip);
163 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO);
164 sl.buf=(unsigned char*)buf;
165 sl.len=strlen((char*)buf);
166 Send_With_Handling(ns, &sl);
167#ifdef CS_LOGSTATS
168 if (socket_info.nconns>cst_tot.max_conn)
169 cst_tot.max_conn = socket_info.nconns;
170 if (socket_info.nconns>cst_lst.max_conn)
171 cst_lst.max_conn = socket_info.nconns;
172#endif
173}
174
175
176/** This sets up the socket and reads all the image information into memory. */
177void init_ericserver(void)
178{
179 struct sockaddr_in insock;
180 struct protoent *protox;
181 struct linger linger_opt; 59 struct linger linger_opt;
182
183#ifdef WIN32 /* ***win32 - we init a windows socket */
184 WSADATA w;
185
186 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
187 WSAStartup (0x0101,&w); /* this setup all socket stuff */
188 /* ill include no error tests here, winsocket 1.1 should always work */
189 /* except some old win95 versions without tcp/ip stack */
190#else /* non windows */
191
192#ifdef HAVE_SYSCONF
193 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX);
194#else
195# ifdef HAVE_GETDTABLESIZE
196 socket_info.max_filedescriptor = getdtablesize();
197# else
198 "Unable to find usable function to get max filedescriptors";
199# endif
200#endif
201#endif /* win32 */
202
203 socket_info.timeout.tv_sec = 0;
204 socket_info.timeout.tv_usec = 0;
205 socket_info.nconns=0;
206
207#ifdef CS_LOGSTATS
208 memset(&cst_tot, 0, sizeof(CS_Stats));
209 memset(&cst_lst, 0, sizeof(CS_Stats));
210 cst_tot.time_start=time(NULL);
211 cst_lst.time_start=time(NULL);
212#endif
213
214 LOG(llevDebug,"Initialize new client/server data\n");
215 socket_info.nconns = 1;
216 init_sockets = (NewSocket *) malloc(sizeof(NewSocket));
217 init_sockets[0].faces_sent = NULL; /* unused */
218 socket_info.allocated_sockets=1;
219
220 protox = getprotobyname("tcp");
221 if (protox==NULL) {
222 LOG(llevError,"init_ericserver: Error getting protox\n");
223 return;
224 }
225 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto);
226 if (init_sockets[0].fd == -1) {
227 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno));
228 exit(-1);
229 }
230 insock.sin_family = AF_INET;
231 insock.sin_port = htons(settings.csport);
232 insock.sin_addr.s_addr = htonl(INADDR_ANY);
233 60
234 linger_opt.l_onoff = 0; 61 linger_opt.l_onoff = 0;
235 linger_opt.l_linger = 0; 62 linger_opt.l_linger = 0;
236 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 63
237 sizeof(struct linger))) { 64 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
238 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 65 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
239 } 66 }
240/* Would be nice to have an autoconf check for this. It appears that 67
241 * these functions are both using the same calling syntax, just one
242 * of them needs extra valus passed.
243 */
244#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
245 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
246 defined(__FreeBSD__) || defined(__OpenBSD__) || \
247 defined(WIN32) /* ---win32 add this here */ || \
248 defined(__GNU__) /* HURD */
249 { 68 {
250#ifdef WIN32 69 int bufsize = 65535; /*Supposed absolute upper limit */
251 char tmp = 1; 70 int oldbufsize;
252#else 71 int buflen = sizeof (int);
253 int tmp =1; 72
73 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
74 LOG (llevError, "InitConnection: Error on fcntl.\n");
75
76 if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
77 oldbufsize = 0;
78
79 if (oldbufsize < bufsize)
80 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
81 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
82
83 buflen = sizeof (oldbufsize);
84 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
85 }
86
87 mapmode = Map0Cmd;
88 darkness = 1;
89 status = Ns_Add;
90 mapx = 11;
91 mapy = 11;
92 itemcmd = 1; /* Default is version item1 command */
93
94 faces_sent_len = nrofpixmaps;
95 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
96 if (!faces_sent)
97 fatal (OUT_OF_MEMORY);
98
99 /* Do this so we don't send a face command for the client for
100 * this face. Face 0 is sent to the client to say clear
101 * face information.
102 */
103 faces_sent[0] = NS_FACESENT_FACE;
104
105 socket_ev.fd (fd);
106
107 // initialisation done, kick it!
108
109 {
110 packet sl;
111 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
112 send_packet (sl);
113 flush ();
114 }
115
116#if 0//TODO
117 socket_info.nconns++;
118 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
119 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
254#endif 120#endif
121}
255 122
256 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 123client::~client ()
257 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 124{
258 } 125 status = Ns_Dead;
259 } 126}
260#else
261 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
262 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
263 }
264#endif
265 127
266 if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) { 128/** This sets up the socket and reads all the image information into memory. */
267 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno)); 129void
268#ifdef WIN32 /* ***win32: close() -> closesocket() */ 130init_ericserver (void)
269 shutdown(init_sockets[0].fd,SD_BOTH); 131{
270 closesocket(init_sockets[0].fd); 132 struct sockaddr_in insock;
271#else 133 struct linger linger_opt;
272 close(init_sockets[0].fd); 134
273#endif /* win32 */ 135 memset (&cst_tot, 0, sizeof (CS_Stats));
274 exit(-1); 136 memset (&cst_lst, 0, sizeof (CS_Stats));
275 } 137 cst_tot.time_start = time (NULL);
276 if (listen(init_sockets[0].fd,5) == (-1)) { 138 cst_lst.time_start = time (NULL);
277 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 139
278#ifdef WIN32 /* ***win32: close() -> closesocket() */ 140 LOG (llevDebug, "Initialize new client/server data\n");
279 shutdown(init_sockets[0].fd,SD_BOTH); 141
280 closesocket(init_sockets[0].fd);
281#else
282 close(init_sockets[0].fd);
283#endif /* win32 */
284 exit(-1);
285 }
286 init_sockets[0].status=Ns_Add;
287 read_client_images(); 142 read_client_images ();
288} 143}
289 144
290 145
291/******************************************************************************* 146/*******************************************************************************
292 * 147 *
293 * Start of functions dealing with freeing of the data. 148 * Start of functions dealing with freeing of the data.
294 * 149 *
295 ******************************************************************************/ 150 ******************************************************************************/
296 151
297/** Free's all the memory that ericserver allocates. */ 152/** Free's all the memory that ericserver allocates. */
153void
298void free_all_newserver(void) 154free_all_newserver (void)
299{ 155{
300 LOG(llevDebug,"Freeing all new client/server information.\n"); 156 LOG (llevDebug, "Freeing all new client/server information.\n");
301 free_socket_images(); 157 free_socket_images ();
302 free(init_sockets);
303} 158}
304 159
305/** 160/**
306 * Frees a socket. 161 * Frees a socket.
307 * Basically, all we need to do here is free all data structures that 162 * Basically, all we need to do here is free all data structures that
308 * might be associated with the socket. It is up to the caller to 163 * might be associated with the socket. It is up to the caller to
309 * update the list 164 * update the list
310 */ 165 */
311 166
312void free_newsocket(NewSocket *ns) 167void
168free_newsocket (client *ns)
313{ 169{
314#ifdef WIN32 /* ***win32: closesocket in windows style */ 170 if (ns->fd >= 0)
315 shutdown(ns->fd,SD_BOTH);
316 if (closesocket(ns->fd)) {
317#else
318 if (close(ns->fd)) { 171 close (ns->fd);
319#endif /* win32 */
320 172
321#ifdef ESRV_DEBUG 173 if (ns->stats.range)
322 LOG(llevDebug,"Error closing socket %d\n", ns->fd); 174 free (ns->stats.range);
323#endif 175
176 if (ns->stats.title)
177 free (ns->stats.title);
178
179 free (ns->host);
180
181 ns->fd = -1;
182 ns->stats.range = 0;
183 ns->stats.title = 0;
184 ns->host = 0;
185}
186
187/** Sends the 'goodbye' command to the player, and closes connection. */
188void
189final_free_player (player *pl)
190{
191 pl->socket->send_packet ("goodbye");
192 free_newsocket (pl->socket);
193 free_player (pl);
194}
195
196bool
197add_client (int fd, const char *peername)
198{
199 if (checkbanned (NULL, peername))
200 {
201 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
202 return false;
324 } 203 }
325 if (ns->stats.range) 204 else
326 free(ns->stats.range); 205 {
327 if (ns->stats.title) 206 client *ns = new client (dup (fd), peername);
328 free(ns->stats.title); 207 clients.push_back (ns);
329 if (ns->comment) 208 return true;
330 free(ns->comment); 209 }
331 free(ns->host);
332 free(ns->inbuf.buf);
333} 210}
334 211
335/** Sends the 'goodbye' command to the player, and closes connection. */
336void final_free_player(player *pl)
337{
338 cs_write_string(&pl->socket, "goodbye", 8);
339 free_newsocket(&pl->socket);
340 free_player(pl);
341}
342

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