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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.3 by root, Fri Aug 18 02:06:58 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 1.3 2006/08/18 02:06:58 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
162 ns->sent_scroll=0;
163 ns->host=strdup_local(from_ip);
164 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO);
165 sl.buf=(unsigned char*)buf;
166 sl.len=strlen((char*)buf);
167 Send_With_Handling(ns, &sl);
168#ifdef CS_LOGSTATS
169 if (socket_info.nconns>cst_tot.max_conn)
170 cst_tot.max_conn = socket_info.nconns;
171 if (socket_info.nconns>cst_lst.max_conn)
172 cst_lst.max_conn = socket_info.nconns;
173#endif
174}
175
176
177/** This sets up the socket and reads all the image information into memory. */
178void init_ericserver(void)
179{
180 struct sockaddr_in insock;
181 struct protoent *protox;
182 struct linger linger_opt; 59 struct linger linger_opt;
183
184#ifdef WIN32 /* ***win32 - we init a windows socket */
185 WSADATA w;
186
187 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
188 WSAStartup (0x0101,&w); /* this setup all socket stuff */
189 /* ill include no error tests here, winsocket 1.1 should always work */
190 /* except some old win95 versions without tcp/ip stack */
191#else /* non windows */
192
193#ifdef HAVE_SYSCONF
194 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX);
195#else
196# ifdef HAVE_GETDTABLESIZE
197 socket_info.max_filedescriptor = getdtablesize();
198# else
199 "Unable to find usable function to get max filedescriptors";
200# endif
201#endif
202#endif /* win32 */
203
204 socket_info.timeout.tv_sec = 0;
205 socket_info.timeout.tv_usec = 0;
206 socket_info.nconns=0;
207
208#ifdef CS_LOGSTATS
209 memset(&cst_tot, 0, sizeof(CS_Stats));
210 memset(&cst_lst, 0, sizeof(CS_Stats));
211 cst_tot.time_start=time(NULL);
212 cst_lst.time_start=time(NULL);
213#endif
214
215 LOG(llevDebug,"Initialize new client/server data\n");
216 socket_info.nconns = 1;
217 init_sockets = (NewSocket *) malloc(sizeof(NewSocket));
218 init_sockets[0].faces_sent = NULL; /* unused */
219 socket_info.allocated_sockets=1;
220
221 protox = getprotobyname("tcp");
222 if (protox==NULL) {
223 LOG(llevError,"init_ericserver: Error getting protox\n");
224 return;
225 }
226 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto);
227 if (init_sockets[0].fd == -1) {
228 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno));
229 exit(-1);
230 }
231 insock.sin_family = AF_INET;
232 insock.sin_port = htons(settings.csport);
233 insock.sin_addr.s_addr = htonl(INADDR_ANY);
234 60
235 linger_opt.l_onoff = 0; 61 linger_opt.l_onoff = 0;
236 linger_opt.l_linger = 0; 62 linger_opt.l_linger = 0;
237 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 63
238 sizeof(struct linger))) { 64 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
239 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 65 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
240 } 66 }
241/* Would be nice to have an autoconf check for this. It appears that 67
242 * these functions are both using the same calling syntax, just one
243 * of them needs extra valus passed.
244 */
245#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
246 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
247 defined(__FreeBSD__) || defined(__OpenBSD__) || \
248 defined(WIN32) /* ---win32 add this here */ || \
249 defined(__GNU__) /* HURD */
250 { 68 {
251#ifdef WIN32 69 int bufsize = 65535; /*Supposed absolute upper limit */
252 char tmp = 1; 70 int oldbufsize;
253#else 71 int buflen = sizeof (int);
254 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;
255#endif 120#endif
121}
256 122
257 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 123client::~client ()
258 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 124{
259 } 125 status = Ns_Dead;
260 } 126}
261#else
262 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
263 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
264 }
265#endif
266 127
267 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. */
268 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno)); 129void
269#ifdef WIN32 /* ***win32: close() -> closesocket() */ 130init_ericserver (void)
270 shutdown(init_sockets[0].fd,SD_BOTH); 131{
271 closesocket(init_sockets[0].fd); 132 struct sockaddr_in insock;
272#else 133 struct linger linger_opt;
273 close(init_sockets[0].fd); 134
274#endif /* win32 */ 135 memset (&cst_tot, 0, sizeof (CS_Stats));
275 exit(-1); 136 memset (&cst_lst, 0, sizeof (CS_Stats));
276 } 137 cst_tot.time_start = time (NULL);
277 if (listen(init_sockets[0].fd,5) == (-1)) { 138 cst_lst.time_start = time (NULL);
278 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 139
279#ifdef WIN32 /* ***win32: close() -> closesocket() */ 140 LOG (llevDebug, "Initialize new client/server data\n");
280 shutdown(init_sockets[0].fd,SD_BOTH); 141
281 closesocket(init_sockets[0].fd);
282#else
283 close(init_sockets[0].fd);
284#endif /* win32 */
285 exit(-1);
286 }
287 init_sockets[0].status=Ns_Add;
288 read_client_images(); 142 read_client_images ();
289} 143}
290 144
291 145
292/******************************************************************************* 146/*******************************************************************************
293 * 147 *
294 * Start of functions dealing with freeing of the data. 148 * Start of functions dealing with freeing of the data.
295 * 149 *
296 ******************************************************************************/ 150 ******************************************************************************/
297 151
298/** Free's all the memory that ericserver allocates. */ 152/** Free's all the memory that ericserver allocates. */
153void
299void free_all_newserver(void) 154free_all_newserver (void)
300{ 155{
301 LOG(llevDebug,"Freeing all new client/server information.\n"); 156 LOG (llevDebug, "Freeing all new client/server information.\n");
302 free_socket_images(); 157 free_socket_images ();
303 free(init_sockets);
304} 158}
305 159
306/** 160/**
307 * Frees a socket. 161 * Frees a socket.
308 * 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
309 * 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
310 * update the list 164 * update the list
311 */ 165 */
312 166
313void free_newsocket(NewSocket *ns) 167void
168free_newsocket (client *ns)
314{ 169{
315#ifdef WIN32 /* ***win32: closesocket in windows style */ 170 if (ns->fd >= 0)
316 shutdown(ns->fd,SD_BOTH);
317 if (closesocket(ns->fd)) {
318#else
319 if (close(ns->fd)) { 171 close (ns->fd);
320#endif /* win32 */
321 172
322#ifdef ESRV_DEBUG 173 if (ns->stats.range)
323 LOG(llevDebug,"Error closing socket %d\n", ns->fd); 174 free (ns->stats.range);
324#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;
325 } 203 }
326 if (ns->stats.range) 204 else
327 free(ns->stats.range); 205 {
328 if (ns->stats.title) 206 client *ns = new client (dup (fd), peername);
329 free(ns->stats.title); 207 clients.push_back (ns);
330 if (ns->comment) 208 return true;
331 free(ns->comment); 209 }
332 free(ns->host);
333 free(ns->inbuf.buf);
334} 210}
335 211
336/** Sends the 'goodbye' command to the player, and closes connection. */
337void final_free_player(player *pl)
338{
339 cs_write_string(&pl->socket, "goodbye", 8);
340 free_newsocket(&pl->socket);
341 free_player(pl);
342}
343

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