1 | /* |
1 | /* |
2 | CrossFire, A Multiplayer game for X-windows |
2 | * CrossFire, A Multiplayer game for X-windows |
3 | |
3 | * |
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4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
4 | Copyright (C) 2001 Mark Wedel |
5 | * Copyright (C) 2001 Mark Wedel |
5 | Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (C) 1992 Frank Tore Johansen |
6 | |
7 | * |
7 | This program is free software; you can redistribute it and/or modify |
8 | * This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by |
9 | * it under the terms of the GNU General Public License as published by |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. |
11 | * (at your option) any later version. |
11 | |
12 | * |
12 | This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
16 | |
17 | * |
17 | You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software |
19 | * along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | |
21 | * |
21 | The author can be reached via e-mail to <crossfire@schmorp.de> |
22 | * The author can be reached via e-mail to <crossfire@schmorp.de> |
22 | */ |
23 | */ |
23 | |
24 | |
24 | /** |
25 | /** |
25 | * \file |
26 | * \file |
26 | * Socket general functions |
27 | * Socket general functions |
27 | * |
28 | * |
… | |
… | |
29 | * |
30 | * |
30 | * Mainly deals with initialization and higher level socket |
31 | * Mainly deals with initialization and higher level socket |
31 | * maintenance (checking for lost connections and if data has arrived.) |
32 | * maintenance (checking for lost connections and if data has arrived.) |
32 | * The reading of data is handled in ericserver.c |
33 | * The reading of data is handled in ericserver.c |
33 | */ |
34 | */ |
34 | |
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35 | |
35 | |
36 | #include <global.h> |
36 | #include <global.h> |
37 | #include <sproto.h> |
37 | #include <sproto.h> |
38 | #include <sys/types.h> |
38 | #include <sys/types.h> |
39 | #include <sys/time.h> |
39 | #include <sys/time.h> |
… | |
… | |
44 | #include <netdb.h> |
44 | #include <netdb.h> |
45 | |
45 | |
46 | #include <unistd.h> |
46 | #include <unistd.h> |
47 | #include <arpa/inet.h> |
47 | #include <arpa/inet.h> |
48 | |
48 | |
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49 | #include <algorithm> |
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50 | |
49 | sockvec clients; |
51 | sockvec clients; |
50 | |
52 | |
51 | /** |
53 | /** |
52 | * Initializes a connection. Really, it just sets up the data structure, |
54 | * Initializes a connection. Really, it just sets up the data structure, |
53 | * socket setup is handled elsewhere. We do send a version to the |
55 | * socket setup is handled elsewhere. We do send a version to the |
54 | * client. |
56 | * client. |
55 | */ |
57 | */ |
56 | client::client (int fd, const char *peername) |
58 | client::client (int fd, const char *peername) |
57 | : fd (fd), host (strdup (peername)), |
59 | : fd (fd), host (strdup (peername)), |
58 | socket_ev (this, &client::socket_cb), |
60 | socket_ev (this, &client::socket_cb), |
59 | cmd_ev (this, &client::cmd_cb) |
61 | cmd_ev (this, &client::cmd_cb), |
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62 | cc_inv (this), cc_other (this) |
60 | { |
63 | { |
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64 | refcnt_inc (); // the socket is an external reference |
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65 | |
61 | { |
66 | { |
62 | struct linger linger_opt; |
67 | struct linger linger_opt; |
63 | |
68 | |
64 | linger_opt.l_onoff = 0; |
69 | linger_opt.l_onoff = 0; |
65 | linger_opt.l_linger = 0; |
70 | linger_opt.l_linger = 0; |
… | |
… | |
118 | |
123 | |
119 | buflen = sizeof (oldbufsize); |
124 | buflen = sizeof (oldbufsize); |
120 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
125 | getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); |
121 | } |
126 | } |
122 | |
127 | |
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128 | state = ST_SETUP; |
123 | mapmode = Map0Cmd; |
129 | mapmode = Map0Cmd; |
124 | darkness = 1; |
130 | darkness = 1; |
125 | status = Ns_Add; |
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126 | mapx = 11; |
131 | mapx = 11; |
127 | mapy = 11; |
132 | mapy = 11; |
128 | itemcmd = 1; /* Default is version item1 command */ |
133 | itemcmd = 1; /* Default is version item1 command */ |
129 | |
134 | max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default |
130 | faces_sent = salloc<uint8> (nrofpixmaps, 0); |
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131 | |
135 | |
132 | /* Do this so we don't send a face command for the client for |
136 | /* Do this so we don't send a face command for the client for |
133 | * this face. Face 0 is sent to the client to say clear |
137 | * this face. Face 0 is sent to the client to say clear |
134 | * face information. |
138 | * face information. |
135 | */ |
139 | */ |
136 | faces_sent[0] = NS_FACESENT_FACE; |
140 | faces_sent[0] = true; |
137 | |
141 | |
138 | // socket I/O is low priority |
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139 | // we prefer to have the server run instead of handling client requests |
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140 | socket_ev.prio (PE_PRIO_NORMAL + 1); |
142 | socket_ev.prio (PE_PRIO_NORMAL); |
141 | socket_ev.fd (fd); |
143 | socket_ev.fd (fd); |
142 | socket_ev.poll (PE_R); |
144 | socket_ev.poll (PE_R); |
143 | |
145 | |
144 | // command handling is even lower priority |
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145 | // that way no client can monopolise the server |
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146 | cmd_ev.prio (PE_PRIO_NORMAL + 2); |
146 | cmd_ev.prio (PE_PRIO_NORMAL); |
147 | |
147 | |
148 | // initialisation done, kick it! |
148 | // initialisation done, kick it! |
149 | send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
149 | send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); |
150 | flush (); |
150 | flush (); |
151 | |
151 | |
152 | #if 0//TODO |
152 | reset_stats (); |
153 | socket_info.nconns++; |
153 | |
154 | if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; |
154 | clients.insert (this); |
155 | if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; |
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156 | #endif |
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157 | } |
155 | } |
158 | |
156 | |
159 | client::~client () |
157 | client::~client () |
160 | { |
158 | { |
161 | if (pl) |
159 | clients.erase (this); |
162 | pl->socket = 0; |
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163 | |
160 | |
164 | if (fd >= 0) |
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165 | close (fd); |
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166 | |
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167 | free (faces_sent); |
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168 | free (stats.range); |
161 | free (stats.range); |
169 | free (stats.title); |
162 | free (stats.title); |
170 | free (host); |
163 | free (host); |
171 | } |
164 | } |
172 | |
165 | |
173 | void |
166 | void |
174 | client::destroy () |
167 | client::do_destroy () |
175 | { |
168 | { |
176 | status = Ns_Dead; |
169 | attachable::do_destroy (); |
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170 | |
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171 | if (pl) |
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172 | pl->disconnect (); |
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173 | |
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174 | if (fd >= 0) |
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175 | { |
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176 | send_packet ("goodbye"); |
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177 | flush (); |
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178 | |
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179 | close (fd); |
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180 | } |
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181 | |
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182 | state = ST_DEAD; |
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183 | |
177 | socket_ev.suspend (); |
184 | socket_ev.suspend (); |
178 | cmd_ev.suspend (); |
185 | cmd_ev.suspend (); |
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186 | |
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187 | refcnt_dec (); // socket no longer open |
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188 | } |
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189 | |
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190 | void |
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191 | client::reset_stats () |
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192 | { |
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193 | /* we need to clear these to -1 and not zero - otherwise, |
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194 | * if a player quits and starts a new character, we wont |
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195 | * send new values to the client, as things like exp start |
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196 | * at zero. |
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197 | */ |
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198 | for (int i = 0; i < NUM_SKILLS; i++) |
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199 | last_skill_exp[i] = -1; |
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200 | |
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201 | for (int i = 0; i < NROFATTACKS; i++) |
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202 | last_resist[i] = -1; |
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203 | |
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204 | last_weapon_sp = -1; |
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205 | last_level = -1; |
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206 | last_stats.exp = -1; |
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207 | last_weight = (uint32) - 1; |
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208 | last_flags = 0; |
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209 | last_weight = 0; |
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210 | last_weight_limit = 0; |
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211 | last_path_attuned = 0; |
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212 | last_path_repelled = 0; |
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213 | last_path_denied = 0; |
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214 | last_speed = 0; |
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215 | flags = 0; |
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216 | |
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217 | static living zero_living; |
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218 | last_stats = zero_living; |
179 | } |
219 | } |
180 | |
220 | |
181 | /** This sets up the socket and reads all the image information into memory. */ |
221 | /** This sets up the socket and reads all the image information into memory. */ |
182 | void |
222 | void |
183 | init_ericserver (void) |
223 | init_ericserver (void) |
184 | { |
224 | { |
185 | cst_tot.time_start = time (NULL); |
225 | cst_tot.time_start = time (NULL); |
186 | cst_lst.time_start = time (NULL); |
226 | cst_lst.time_start = time (NULL); |
187 | |
227 | |
188 | LOG (llevDebug, "Initialize new client/server data\n"); |
228 | LOG (llevDebug, "Initialize new client/server data\n"); |
189 | |
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190 | read_client_images (); |
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191 | } |
229 | } |
192 | |
230 | |
193 | |
231 | |
194 | /******************************************************************************* |
232 | /******************************************************************************* |
195 | * |
233 | * |
… | |
… | |
203 | { |
241 | { |
204 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
242 | LOG (llevDebug, "Freeing all new client/server information.\n"); |
205 | free_socket_images (); |
243 | free_socket_images (); |
206 | } |
244 | } |
207 | |
245 | |
208 | /** Sends the 'goodbye' command to the player, and closes connection. */ |
246 | client * |
209 | void |
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210 | final_free_player (player *pl) |
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211 | { |
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212 | free_player (pl); |
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213 | } |
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214 | |
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215 | bool |
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216 | add_client (int fd, const char *peername) |
247 | client::create (int fd, const char *peername) |
217 | { |
248 | { |
218 | if (checkbanned (NULL, peername)) |
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219 | { |
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220 | LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); |
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221 | return false; |
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222 | } |
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223 | else |
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224 | { |
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225 | client *ns = new client (dup (fd), peername); |
249 | client *ns = new client (dup (fd), peername); |
226 | clients.push_back (ns); |
250 | ns->instantiate (); // effectively a nop right now |
227 | return true; |
251 | INVOKE_CLIENT (CONNECT, ns); |
228 | } |
252 | return ns; |
229 | } |
253 | } |
230 | |
254 | |