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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.11 by root, Wed Dec 13 02:55:51 2006 UTC vs.
Revision 1.19 by root, Thu Dec 14 22:45:41 2006 UTC

… …
39#include <sys/time.h> 39#include <sys/time.h>
40#include <sys/socket.h> 40#include <sys/socket.h>
41#include <netinet/in.h> 41#include <netinet/in.h>
42#include <netdb.h> 42#include <netdb.h>
43 43
44#ifdef HAVE_UNISTD_H
45# include <unistd.h> 44#include <unistd.h>
46#endif
47
48#ifdef HAVE_ARPA_INET_H
49# include <arpa/inet.h> 45#include <arpa/inet.h>
50#endif
51#include <newserver.h> 46#include <newserver.h>
52 47
53Socket_Info socket_info; 48sockvec client_sockets;
54NewSocket *init_sockets;
55 49
56/** 50/**
57 * Initializes a connection. Really, it just sets up the data structure, 51 * Initializes a connection. Really, it just sets up the data structure,
58 * socket setup is handled elsewhere. We do send a version to the 52 * socket setup is handled elsewhere. We do send a version to the
59 * client. 53 * client.
60 */ 54 */
61void 55client_socket::client_socket (int fd, const char *peername)
62InitConnection (NewSocket *ns, const char *from_ip) 56: fd (fd), host (strdup (peername)),
57 socket_ev (this, &client_socket::socket_cb)
63{ 58{
64 SockList sl; 59 {
65 char buf[256]; 60 struct linger linger_opt;
61
62 linger_opt.l_onoff = 0;
63 linger_opt.l_linger = 0;
64
65 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
66 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
67 }
68
69 {
66 int bufsize = 65535; /*Supposed absolute upper limit */ 70 int bufsize = 65535; /*Supposed absolute upper limit */
67 int oldbufsize; 71 int oldbufsize;
68 int buflen = sizeof (int); 72 int buflen = sizeof (int);
69 73
70 if (fcntl (ns->fd, F_SETFL, O_NONBLOCK) == -1) 74 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
71 LOG (llevError, "InitConnection: Error on fcntl.\n"); 75 LOG (llevError, "InitConnection: Error on fcntl.\n");
72 76
73 if (getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1) 77 if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
74 oldbufsize = 0; 78 oldbufsize = 0;
75 79
76 if (oldbufsize < bufsize) 80 if (oldbufsize < bufsize)
77 if (setsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize))) 81 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
78 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize); 82 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
79 83
80 buflen = sizeof (oldbufsize); 84 buflen = sizeof (oldbufsize);
81 getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 85 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
82#ifdef ESRV_DEBUG 86 }
83 LOG (llevDebug, "Socket buffer size now %d bytes\n", oldbufsize);
84#endif
85 87
86 ns->faceset = 0;
87 ns->facecache = 0;
88 ns->image2 = 0;
89 ns->sound = 0;
90 ns->exp64 = 0;
91 ns->monitor_spells = 0;
92 ns->mapmode = Map0Cmd; 88 mapmode = Map0Cmd;
93 ns->darkness = 1; 89 darkness = 1;
94 ns->status = Ns_Add; 90 status = Ns_Add;
95 ns->mapx = 11; 91 mapx = 11;
96 ns->mapy = 11; 92 mapy = 11;
97 ns->newmapcmd = 0;
98 ns->itemcmd = 1; /* Default is version item1 command */ 93 itemcmd = 1; /* Default is version item1 command */
99 ns->ext_mapinfos = 0; /*extendedmapinfo datas */
100 ns->EMI_smooth = 0;
101 ns->look_position = 0;
102 ns->update_look = 0;
103 ns->has_readable_type = 0;
104 ns->supported_readables = 0;
105 ns->monitor_spells = 0;
106 ns->mapinfocmd = 0;
107 ns->extcmd = 0;
108 ns->extmap = 0;
109 94
110 /* we should really do some checking here - if total clients overflows 95 faces_sent_len = nrofpixmaps;
111 * we need to do something more intelligent, because client id's will start 96 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
112 * duplicating (not likely in normal cases, but malicous attacks that 97 if (!faces_sent)
113 * just open and close connections could get this total up. 98 fatal (OUT_OF_MEMORY);
114 */ 99
115 ns->inbuf.len = 0;
116 ns->inbuf.buf = (unsigned char *) malloc (sizeof (unsigned char) * MAXSOCKBUF);
117 /* Basic initialization. Needed because we do a check in
118 * HandleClient for oldsocketmode without checking the
119 * length of data.
120 */
121 memset (ns->inbuf.buf, 0, sizeof (unsigned char) * MAXSOCKBUF);
122 memset (&ns->lastmap, 0, sizeof (struct Map));
123 memset (ns->faces_sent, 0, ns->faces_sent_len * sizeof (*ns->faces_sent));
124 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
125 memset (&ns->stats, 0, sizeof (struct statsinfo));
126 /* Do this so we don't send a face command for the client for 100 /* Do this so we don't send a face command for the client for
127 * this face. Face 0 is sent to the client to say clear 101 * this face. Face 0 is sent to the client to say clear
128 * face information. 102 * face information.
129 */ 103 */
130 ns->faces_sent[0] = NS_FACESENT_FACE; 104 faces_sent[0] = NS_FACESENT_FACE;
131 105
132 ns->outputbuffer.start = 0; 106 socket_ev.fd (fd);
133 ns->outputbuffer.len = 0;
134 ns->can_write = 1;
135 ns->password_fails = 0;
136 107
137 ns->current_map = 0; 108 // initialisation done, kick it!
138 ns->current_x = 0;
139 ns->current_y = 0;
140 ns->client[0] = 0;
141 ns->buggy_mapscroll = 0;
142 109
143 ns->sent_scroll = 0; 110 {
144 ns->host = strdup_local (from_ip); 111 packet sl;
145 sprintf ((char *) buf, "version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 112 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
146 sl.buf = (unsigned char *) buf; 113 send_packet (sl);
147 sl.len = strlen ((char *) buf); 114 flush ();
148 Send_With_Handling (ns, &sl); 115 }
149#ifdef CS_LOGSTATS 116
150 if (socket_info.nconns > cst_tot.max_conn) 117#if 0//TODO
151 cst_tot.max_conn = socket_info.nconns; 118 socket_info.nconns++;
152 if (socket_info.nconns > cst_lst.max_conn) 119 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
153 cst_lst.max_conn = socket_info.nconns; 120 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
154#endif 121#endif
155} 122}
156 123
124client_socket::~client_socket ()
125{
126 status = Ns_Dead;
127}
157 128
158/** This sets up the socket and reads all the image information into memory. */ 129/** This sets up the socket and reads all the image information into memory. */
159void 130void
160init_ericserver (void) 131init_ericserver (void)
161{ 132{
162 struct sockaddr_in insock; 133 struct sockaddr_in insock;
163 struct protoent *protox;
164 struct linger linger_opt; 134 struct linger linger_opt;
165 135
166 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
167
168 socket_info.timeout.tv_sec = 0;
169 socket_info.timeout.tv_usec = 0;
170 socket_info.nconns = 0;
171
172#ifdef CS_LOGSTATS
173 memset (&cst_tot, 0, sizeof (CS_Stats)); 136 memset (&cst_tot, 0, sizeof (CS_Stats));
174 memset (&cst_lst, 0, sizeof (CS_Stats)); 137 memset (&cst_lst, 0, sizeof (CS_Stats));
175 cst_tot.time_start = time (NULL); 138 cst_tot.time_start = time (NULL);
176 cst_lst.time_start = time (NULL); 139 cst_lst.time_start = time (NULL);
177#endif
178 140
179 LOG (llevDebug, "Initialize new client/server data\n"); 141 LOG (llevDebug, "Initialize new client/server data\n");
180 socket_info.nconns = 1;
181 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
182 init_sockets[0].faces_sent = NULL; /* unused */
183 socket_info.allocated_sockets = 1;
184 142
185 protox = getprotobyname ("tcp");
186 if (protox == NULL)
187 {
188 LOG (llevError, "init_ericserver: Error getting protox\n");
189 return;
190 }
191
192 init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto);
193 if (init_sockets[0].fd == -1)
194 {
195 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
196 exit (-1);
197 }
198
199 insock.sin_family = AF_INET;
200 insock.sin_port = htons (settings.csport);
201 insock.sin_addr.s_addr = htonl (INADDR_ANY);
202
203 linger_opt.l_onoff = 0;
204 linger_opt.l_linger = 0;
205 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_LINGER, (char *) &linger_opt, sizeof (struct linger)))
206 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
207
208 {
209 int tmp = 1;
210
211 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp)))
212 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
213 }
214
215 if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1))
216 {
217 LOG (llevError, "Cannot bind socket to port %d: %s\n", ntohs (insock.sin_port), strerror (errno));
218 close (init_sockets[0].fd);
219 exit (-1);
220 }
221
222 if (listen (init_sockets[0].fd, 5) == (-1))
223 {
224 LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno));
225 close (init_sockets[0].fd);
226 exit (-1);
227 }
228
229 init_sockets[0].status = Ns_Add;
230 read_client_images (); 143 read_client_images ();
231} 144}
232 145
233 146
234/******************************************************************************* 147/*******************************************************************************
… …
241void 154void
242free_all_newserver (void) 155free_all_newserver (void)
243{ 156{
244 LOG (llevDebug, "Freeing all new client/server information.\n"); 157 LOG (llevDebug, "Freeing all new client/server information.\n");
245 free_socket_images (); 158 free_socket_images ();
246 free (init_sockets);
247} 159}
248 160
249/** 161/**
250 * Frees a socket. 162 * Frees a socket.
251 * Basically, all we need to do here is free all data structures that 163 * Basically, all we need to do here is free all data structures that
252 * might be associated with the socket. It is up to the caller to 164 * might be associated with the socket. It is up to the caller to
253 * update the list 165 * update the list
254 */ 166 */
255 167
256void 168void
257free_newsocket (NewSocket *ns) 169free_newsocket (client_socket *ns)
258{ 170{
171 if (ns->fd >= 0)
259 close (ns->fd); 172 close (ns->fd);
260 173
261 if (ns->stats.range) 174 if (ns->stats.range)
262 free (ns->stats.range); 175 free (ns->stats.range);
263 176
264 if (ns->stats.title) 177 if (ns->stats.title)
265 free (ns->stats.title); 178 free (ns->stats.title);
266 179
267 free (ns->host); 180 free (ns->host);
268 free (ns->inbuf.buf); 181
182 ns->fd = -1;
183 ns->stats.range = 0;
184 ns->stats.title = 0;
185 ns->host = 0;
269} 186}
270 187
271/** Sends the 'goodbye' command to the player, and closes connection. */ 188/** Sends the 'goodbye' command to the player, and closes connection. */
272void 189void
273final_free_player (player *pl) 190final_free_player (player *pl)
274{ 191{
275 cs_write_string (&pl->socket, "goodbye", 8); 192 pl->socket->send_packet ("goodbye");
276 free_newsocket (&pl->socket); 193 free_newsocket (pl->socket);
277 free_player (pl); 194 free_player (pl);
278} 195}
196
197bool
198add_client_socket (int fd, const char *peername)
199{
200 if (checkbanned (NULL, peername))
201 {
202 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
203 return false;
204 }
205 else
206 {
207 client_socket *ns = new client_socket (dup (fd), peername);
208 client_sockets.push_back (ns);
209 return true;
210 }
211}
212

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