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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.4 by root, Mon Aug 21 07:13:32 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 1.4 2006/08/21 07:13:32 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 ns->extmap = 0;
130
131 /* we should really do some checking here - if total clients overflows
132 * we need to do something more intelligent, because client id's will start
133 * duplicating (not likely in normal cases, but malicous attacks that
134 * just open and close connections could get this total up.
135 */
136 ns->inbuf.len=0;
137 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF );
138 /* Basic initialization. Needed because we do a check in
139 * HandleClient for oldsocketmode without checking the
140 * length of data.
141 */
142 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF );
143 memset(&ns->lastmap,0,sizeof(struct Map));
144 memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent));
145 memset(&ns->anims_sent,0,sizeof(ns->anims_sent));
146 memset(&ns->stats,0,sizeof(struct statsinfo));
147 /* Do this so we don't send a face command for the client for
148 * this face. Face 0 is sent to the client to say clear
149 * face information.
150 */
151 ns->faces_sent[0] = NS_FACESENT_FACE;
152
153 ns->outputbuffer.start=0;
154 ns->outputbuffer.len=0;
155 ns->can_write=1;
156 ns->password_fails = 0;
157
158 ns->current_map = 0;
159 ns->current_x = 0;
160 ns->current_y = 0;
161 ns->client[0] = 0;
162 ns->buggy_mapscroll = 0;
163
164 ns->sent_scroll=0;
165 ns->host=strdup_local(from_ip);
166 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO);
167 sl.buf=(unsigned char*)buf;
168 sl.len=strlen((char*)buf);
169 Send_With_Handling(ns, &sl);
170#ifdef CS_LOGSTATS
171 if (socket_info.nconns>cst_tot.max_conn)
172 cst_tot.max_conn = socket_info.nconns;
173 if (socket_info.nconns>cst_lst.max_conn)
174 cst_lst.max_conn = socket_info.nconns;
175#endif
176}
177
178
179/** This sets up the socket and reads all the image information into memory. */
180void init_ericserver(void)
181{
182 struct sockaddr_in insock;
183 struct protoent *protox;
184 struct linger linger_opt; 59 struct linger linger_opt;
185
186#ifdef WIN32 /* ***win32 - we init a windows socket */
187 WSADATA w;
188
189 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
190 WSAStartup (0x0101,&w); /* this setup all socket stuff */
191 /* ill include no error tests here, winsocket 1.1 should always work */
192 /* except some old win95 versions without tcp/ip stack */
193#else /* non windows */
194
195#ifdef HAVE_SYSCONF
196 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX);
197#else
198# ifdef HAVE_GETDTABLESIZE
199 socket_info.max_filedescriptor = getdtablesize();
200# else
201 "Unable to find usable function to get max filedescriptors";
202# endif
203#endif
204#endif /* win32 */
205
206 socket_info.timeout.tv_sec = 0;
207 socket_info.timeout.tv_usec = 0;
208 socket_info.nconns=0;
209
210#ifdef CS_LOGSTATS
211 memset(&cst_tot, 0, sizeof(CS_Stats));
212 memset(&cst_lst, 0, sizeof(CS_Stats));
213 cst_tot.time_start=time(NULL);
214 cst_lst.time_start=time(NULL);
215#endif
216
217 LOG(llevDebug,"Initialize new client/server data\n");
218 socket_info.nconns = 1;
219 init_sockets = (NewSocket *) malloc(sizeof(NewSocket));
220 init_sockets[0].faces_sent = NULL; /* unused */
221 socket_info.allocated_sockets=1;
222
223 protox = getprotobyname("tcp");
224 if (protox==NULL) {
225 LOG(llevError,"init_ericserver: Error getting protox\n");
226 return;
227 }
228 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto);
229 if (init_sockets[0].fd == -1) {
230 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno));
231 exit(-1);
232 }
233 insock.sin_family = AF_INET;
234 insock.sin_port = htons(settings.csport);
235 insock.sin_addr.s_addr = htonl(INADDR_ANY);
236 60
237 linger_opt.l_onoff = 0; 61 linger_opt.l_onoff = 0;
238 linger_opt.l_linger = 0; 62 linger_opt.l_linger = 0;
239 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 63
240 sizeof(struct linger))) { 64 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
241 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 65 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
242 } 66 }
243/* Would be nice to have an autoconf check for this. It appears that 67
244 * these functions are both using the same calling syntax, just one
245 * of them needs extra valus passed.
246 */
247#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
248 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
249 defined(__FreeBSD__) || defined(__OpenBSD__) || \
250 defined(WIN32) /* ---win32 add this here */ || \
251 defined(__GNU__) /* HURD */
252 { 68 {
253#ifdef WIN32 69 int bufsize = 65535; /*Supposed absolute upper limit */
254 char tmp = 1; 70 int oldbufsize;
255#else 71 int buflen = sizeof (int);
256 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;
257#endif 120#endif
121}
258 122
259 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 123client::~client ()
260 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 124{
261 } 125 status = Ns_Dead;
262 } 126}
263#else
264 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
265 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
266 }
267#endif
268 127
269 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. */
270 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno)); 129void
271#ifdef WIN32 /* ***win32: close() -> closesocket() */ 130init_ericserver (void)
272 shutdown(init_sockets[0].fd,SD_BOTH); 131{
273 closesocket(init_sockets[0].fd); 132 struct sockaddr_in insock;
274#else 133 struct linger linger_opt;
275 close(init_sockets[0].fd); 134
276#endif /* win32 */ 135 memset (&cst_tot, 0, sizeof (CS_Stats));
277 exit(-1); 136 memset (&cst_lst, 0, sizeof (CS_Stats));
278 } 137 cst_tot.time_start = time (NULL);
279 if (listen(init_sockets[0].fd,5) == (-1)) { 138 cst_lst.time_start = time (NULL);
280 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 139
281#ifdef WIN32 /* ***win32: close() -> closesocket() */ 140 LOG (llevDebug, "Initialize new client/server data\n");
282 shutdown(init_sockets[0].fd,SD_BOTH); 141
283 closesocket(init_sockets[0].fd);
284#else
285 close(init_sockets[0].fd);
286#endif /* win32 */
287 exit(-1);
288 }
289 init_sockets[0].status=Ns_Add;
290 read_client_images(); 142 read_client_images ();
291} 143}
292 144
293 145
294/******************************************************************************* 146/*******************************************************************************
295 * 147 *
296 * Start of functions dealing with freeing of the data. 148 * Start of functions dealing with freeing of the data.
297 * 149 *
298 ******************************************************************************/ 150 ******************************************************************************/
299 151
300/** Free's all the memory that ericserver allocates. */ 152/** Free's all the memory that ericserver allocates. */
153void
301void free_all_newserver(void) 154free_all_newserver (void)
302{ 155{
303 LOG(llevDebug,"Freeing all new client/server information.\n"); 156 LOG (llevDebug, "Freeing all new client/server information.\n");
304 free_socket_images(); 157 free_socket_images ();
305 free(init_sockets);
306} 158}
307 159
308/** 160/**
309 * Frees a socket. 161 * Frees a socket.
310 * 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
311 * 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
312 * update the list 164 * update the list
313 */ 165 */
314 166
315void free_newsocket(NewSocket *ns) 167void
168free_newsocket (client *ns)
316{ 169{
317#ifdef WIN32 /* ***win32: closesocket in windows style */ 170 if (ns->fd >= 0)
318 shutdown(ns->fd,SD_BOTH);
319 if (closesocket(ns->fd)) {
320#else
321 if (close(ns->fd)) { 171 close (ns->fd);
322#endif /* win32 */
323 172
324#ifdef ESRV_DEBUG 173 if (ns->stats.range)
325 LOG(llevDebug,"Error closing socket %d\n", ns->fd); 174 free (ns->stats.range);
326#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;
327 } 203 }
328 if (ns->stats.range) 204 else
329 free(ns->stats.range); 205 {
330 if (ns->stats.title) 206 client *ns = new client (dup (fd), peername);
331 free(ns->stats.title); 207 clients.push_back (ns);
332 if (ns->comment) 208 return true;
333 free(ns->comment); 209 }
334 free(ns->host);
335 free(ns->inbuf.buf);
336} 210}
337 211
338/** Sends the 'goodbye' command to the player, and closes connection. */
339void final_free_player(player *pl)
340{
341 cs_write_string(&pl->socket, "goodbye", 8);
342 free_newsocket(&pl->socket);
343 free_player(pl);
344}
345

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