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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.20 by root, Fri Dec 15 19:59:20 2006 UTC vs.
Revision 1.46 by root, Mon May 28 21:22:26 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
3 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4 Copyright (C) 2001 Mark Wedel 5 * Copyright (©) 2001,2007 Mark Wedel
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software; you can redistribute it and/or modify it
8 it under the terms of the GNU General Public License as published by 9 * under the terms of the GNU General Public License as published by the Free
9 the Free Software Foundation; either version 2 of the License, or 10 * Software Foundation; either version 2 of the License, or (at your option)
10 (at your option) any later version. 11 * 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, but
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 GNU General Public License for more details. 16 * 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 along
18 along with this program; if not, write to the Free Software 19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 21 *
21 The author can be reached via e-mail to <crossfire@schmorp.de> 22 * The authors 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
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>
40#include <sys/socket.h> 40#include <sys/socket.h>
41#include <netinet/in.h> 41#include <netinet/in.h>
42#include <netinet/tcp.h>
43#include <netinet/ip.h>
42#include <netdb.h> 44#include <netdb.h>
43 45
44#include <unistd.h> 46#include <unistd.h>
45#include <arpa/inet.h> 47#include <arpa/inet.h>
48
49#include <algorithm>
46 50
47sockvec clients; 51sockvec clients;
48 52
49/** 53/**
50 * Initializes a connection. Really, it just sets up the data structure, 54 * Initializes a connection. Really, it just sets up the data structure,
51 * 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
52 * client. 56 * client.
53 */ 57 */
54client::client (int fd, const char *peername) 58client::client (int fd, const char *peername)
55: fd (fd), host (strdup (peername)), 59: fd (fd), host (strdup (peername)),
56 socket_ev (this, &client::socket_cb) 60 socket_ev (this, &client::socket_cb),
61 cmd_ev (this, &client::cmd_cb)
57{ 62{
63 refcnt_inc (); // the socket is an external reference
64
65 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
66
58 { 67 {
59 struct linger linger_opt; 68 struct linger linger_opt;
60 69
61 linger_opt.l_onoff = 0; 70 linger_opt.l_onoff = 0;
62 linger_opt.l_linger = 0; 71 linger_opt.l_linger = 0;
63 72
64 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 73 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
65 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 74 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
75 }
76
77 {
78 int val;
79
80#ifdef IP_TOS
81 val = IPTOS_LOWDELAY;
82 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
83 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
84#endif
85
86#ifdef TCP_NODELAY
87 val = 1;
88 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
89 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
90#endif
91
92 // set some very aggressive keepalive parameters
93#ifdef TCP_KEEPIDLE
94 val = 1;
95 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
96 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
97#endif
98
99#ifdef TCP_KEEPCNT
100 val = 3;
101 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
102 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
103#endif
104
105#ifdef TCP_KEEPINTVL
106 val = 1;
107 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
108 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
109#endif
110
111 // try to find the mss value in use
112#ifdef TCP_MAXSEG
113 socklen_t sl = sizeof (val);
114 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
115 mss = val;
116#endif
66 } 117 }
67 118
68 { 119 {
69 int bufsize = 65535; /*Supposed absolute upper limit */ 120 int bufsize = 65535; /*Supposed absolute upper limit */
70 int oldbufsize; 121 int oldbufsize;
… …
82 133
83 buflen = sizeof (oldbufsize); 134 buflen = sizeof (oldbufsize);
84 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 135 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
85 } 136 }
86 137
138 state = ST_SETUP;
87 mapmode = Map0Cmd; 139 mapmode = Map0Cmd;
88 darkness = 1; 140 darkness = 1;
89 status = Ns_Add;
90 mapx = 11; 141 mapx = 11;
91 mapy = 11; 142 mapy = 11;
92 itemcmd = 1; /* Default is version item1 command */ 143 itemcmd = 1; /* Default is version item1 command */
93 144 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
94 faces_sent_len = nrofpixmaps;
95 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
96 if (!faces_sent)
97 fatal (OUT_OF_MEMORY);
98 145
99 /* Do this so we don't send a face command for the client for 146 /* 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 147 * this face. Face 0 is sent to the client to say clear
101 * face information. 148 * face information.
102 */ 149 */
103 faces_sent[0] = NS_FACESENT_FACE; 150 faces_sent[0] = true;
104 151
152 socket_ev.prio (PE_PRIO_NORMAL);
105 socket_ev.fd (fd); 153 socket_ev.fd (fd);
154 socket_ev.poll (PE_R);
155
156 cmd_ev.prio (PE_PRIO_NORMAL);
106 157
107 // initialisation done, kick it! 158 // initialisation done, kick it!
108
109 {
110 packet sl;
111 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 159 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
112 send_packet (sl);
113 flush (); 160 flush ();
114 }
115 161
116#if 0//TODO 162 reset_stats ();
117 socket_info.nconns++; 163
118 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; 164 clients.insert (this);
119 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
120#endif
121} 165}
122 166
123client::~client () 167client::~client ()
124{ 168{
125 status = Ns_Dead; 169 clients.erase (this);
170
171 free (stats.range);
172 free (stats.title);
173 free (host);
174}
175
176void
177client::do_destroy ()
178{
179 attachable::do_destroy ();
180
181 if (pl)
182 pl->disconnect ();
183
184 if (fd >= 0)
185 {
186 send_packet ("goodbye");
187 flush ();
188
189 close (fd);
190 }
191
192 state = ST_DEAD;
193
194 socket_ev.suspend ();
195 cmd_ev.suspend ();
196
197 refcnt_dec (); // socket no longer open
198}
199
200void
201client::reset_stats ()
202{
203 /* we need to clear these to -1 and not zero - otherwise,
204 * if a player quits and starts a new character, we wont
205 * send new values to the client, as things like exp start
206 * at zero.
207 */
208 for (int i = 0; i < NUM_SKILLS; i++)
209 last_skill_exp[i] = -1;
210
211 for (int i = 0; i < NROFATTACKS; i++)
212 last_resist[i] = -1;
213
214 last_weapon_sp = -1;
215 last_level = -1;
216 last_stats.exp = -1;
217 last_weight = (uint32) - 1;
218 last_flags = 0;
219 last_weight = 0;
220 last_weight_limit = 0;
221 last_path_attuned = 0;
222 last_path_repelled = 0;
223 last_path_denied = 0;
224 last_speed = 0;
225 last_flags = 0;
226
227 static living zero_living;
228 last_stats = zero_living;
126} 229}
127 230
128/** This sets up the socket and reads all the image information into memory. */ 231/** This sets up the socket and reads all the image information into memory. */
129void 232void
130init_ericserver (void) 233init_ericserver (void)
131{ 234{
132 struct sockaddr_in insock;
133 struct linger linger_opt;
134
135 memset (&cst_tot, 0, sizeof (CS_Stats));
136 memset (&cst_lst, 0, sizeof (CS_Stats));
137 cst_tot.time_start = time (NULL); 235 cst_tot.time_start = time (NULL);
138 cst_lst.time_start = time (NULL); 236 cst_lst.time_start = time (NULL);
139 237
140 LOG (llevDebug, "Initialize new client/server data\n"); 238 LOG (llevDebug, "Initialize new client/server data\n");
141
142 read_client_images ();
143} 239}
144
145 240
146/******************************************************************************* 241/*******************************************************************************
147 * 242 *
148 * Start of functions dealing with freeing of the data. 243 * Start of functions dealing with freeing of the data.
149 * 244 *
… …
155{ 250{
156 LOG (llevDebug, "Freeing all new client/server information.\n"); 251 LOG (llevDebug, "Freeing all new client/server information.\n");
157 free_socket_images (); 252 free_socket_images ();
158} 253}
159 254
160/** 255client *
161 * Frees a socket.
162 * Basically, all we need to do here is free all data structures that
163 * might be associated with the socket. It is up to the caller to
164 * update the list
165 */
166
167void
168free_newsocket (client *ns)
169{
170 if (ns->fd >= 0)
171 close (ns->fd);
172
173 if (ns->stats.range)
174 free (ns->stats.range);
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) 256client::create (int fd, const char *peername)
198{ 257{
199 if (checkbanned (NULL, peername))
200 {
201 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
202 return false;
203 }
204 else
205 {
206 client *ns = new client (dup (fd), peername); 258 client *ns = new client (dup (fd), peername);
207 clients.push_back (ns); 259 ns->instantiate (); // effectively a nop right now
208 return true; 260 INVOKE_CLIENT (CONNECT, ns);
209 } 261 return ns;
210} 262}
211 263

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